45 files changed, 29608 insertions, 29613 deletions

diff --git a/mesalib/src/mesa/drivers/dri/Makefile.template b/mesalib/src/mesa/drivers/dri/Makefile.template
index d1a119379..195d60a9c 100644
--- a/mesalib/src/mesa/drivers/dri/Makefile.template
+++ b/mesalib/src/mesa/drivers/dri/Makefile.template
@@ -1,111 +1,111 @@
-# -*-makefile-*-
-
-COMMON_GALLIUM_SOURCES = \
-        ../common/utils.c \
-        ../common/vblank.c \
-        ../common/dri_util.c \
-        ../common/xmlconfig.c
-
-COMMON_SOURCES = $(COMMON_GALLIUM_SOURCES) \
-        ../../common/driverfuncs.c \
-        ../common/texmem.c \
-        ../common/drirenderbuffer.c
-
-INCLUDES = $(SHARED_INCLUDES) $(EXPAT_INCLUDES)
-
-OBJECTS = $(C_SOURCES:.c=.o) \
-	  $(CXX_SOURCES:.cpp=.o) \
-	  $(ASM_SOURCES:.S=.o) 
-
-
-### Include directories
-SHARED_INCLUDES = \
-	-I. \
-	-I$(TOP)/src/mesa/drivers/dri/common \
-	-Iserver \
-	-I$(TOP)/include \
-	-I$(TOP)/src/mapi \
-	-I$(TOP)/src/mesa \
-	-I$(TOP)/src/egl/main \
-	-I$(TOP)/src/egl/drivers/dri \
-	$(LIBDRM_CFLAGS)
-
-CFLAGS += $(API_DEFINES)
-CXXFLAGS += $(API_DEFINES)
-
-##### RULES #####
-
-.c.o:
-	$(CC) -c $(INCLUDES) $(DRI_CFLAGS) $(DRIVER_DEFINES) $< -o $@
-
-.cpp.o:
-	$(CC) -c $(INCLUDES) $(DRI_CXXFLAGS) $(DRIVER_DEFINES) $< -o $@
-
-.S.o:
-	$(CC) -c $(INCLUDES) $(DRI_CFLAGS) $(DRIVER_DEFINES) $< -o $@
-
-
-##### TARGETS #####
-
-default: subdirs lib
-
-
-.PHONY: lib
-lib: symlinks subdirs depend
-	@$(MAKE) $(LIBNAME) $(TOP)/$(LIB_DIR)/$(LIBNAME)
-
-$(LIBNAME): $(OBJECTS) $(EXTRA_MODULES) $(MESA_MODULES) Makefile \
-		$(TOP)/src/mesa/drivers/dri/Makefile.template $(TOP)/src/mesa/drivers/dri/common/dri_test.o
-	$(MKLIB) -o $@.tmp -noprefix -linker '$(CXX)' -ldflags '$(LDFLAGS)' \
-		$(OBJECTS) $(EXTRA_MODULES) $(DRI_LIB_DEPS)
-	$(CXX) $(CFLAGS) -o $@.test $(TOP)/src/mesa/drivers/dri/common/dri_test.o $@.tmp $(DRI_LIB_DEPS)
-	@rm -f $@.test
-	mv -f $@.tmp $@
-
-
-$(TOP)/$(LIB_DIR)/$(LIBNAME): $(LIBNAME)
-	$(INSTALL) $(LIBNAME) $(TOP)/$(LIB_DIR) 
-
-
-# If the Makefile defined SUBDIRS, run make in each
-.PHONY: subdirs
-subdirs:
-	@if test -n "$(SUBDIRS)" ; then \
-		for dir in $(SUBDIRS) ; do \
-			if [ -d $$dir ] ; then \
-				(cd $$dir && $(MAKE)) || exit 1; \
-			fi \
-		done \
-	fi
-
-
-.PHONY: symlinks
-symlinks:
-
-
-depend: $(C_SOURCES) $(CXX_SOURCES) $(ASM_SOURCES) $(SYMLINKS)
-	@ echo "running $(MKDEP)"
-	@ rm -f depend
-	@ touch depend
-	@ $(MKDEP) $(MKDEP_OPTIONS) $(DRIVER_DEFINES) $(INCLUDES) \
-		$(C_SOURCES) $(CXX_SOURCES) \
-		$(ASM_SOURCES) > /dev/null 2>/dev/null
-
-
-# Emacs tags
-tags:
-	etags `find . -name \*.[ch]` `find ../include`
-
-
-# Remove .o and backup files
-clean:
-	-rm -f *.o */*.o *~ *.so *~ server/*.o $(SYMLINKS)
-	-rm -f depend depend.bak
-
-
-install: $(LIBNAME)
-	$(INSTALL) -d $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)
-	$(MINSTALL) -m 755 $(LIBNAME) $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)
-
-
--include depend
+# -*-makefile-*-

+

+COMMON_GALLIUM_SOURCES = \

+        ../common/utils.c \

+        ../common/vblank.c \

+        ../common/dri_util.c \

+        ../common/xmlconfig.c

+

+COMMON_SOURCES = $(COMMON_GALLIUM_SOURCES) \

+        ../../common/driverfuncs.c \

+        ../common/texmem.c \

+        ../common/drirenderbuffer.c

+

+INCLUDES = $(SHARED_INCLUDES) $(EXPAT_INCLUDES)

+

+OBJECTS = $(C_SOURCES:.c=.o) \

+	  $(CXX_SOURCES:.cpp=.o) \

+	  $(ASM_SOURCES:.S=.o) 

+

+

+### Include directories

+SHARED_INCLUDES = \

+	-I. \

+	-I$(TOP)/src/mesa/drivers/dri/common \

+	-Iserver \

+	-I$(TOP)/include \

+	-I$(TOP)/src/mapi \

+	-I$(TOP)/src/mesa \

+	-I$(TOP)/src/egl/main \

+	-I$(TOP)/src/egl/drivers/dri \

+	$(LIBDRM_CFLAGS)

+

+CFLAGS += $(API_DEFINES)

+CXXFLAGS += $(API_DEFINES)

+

+##### RULES #####

+

+.c.o:

+	$(CC) -c $(INCLUDES) $(DRI_CFLAGS) $(DRIVER_DEFINES) $< -o $@

+

+.cpp.o:

+	$(CC) -c $(INCLUDES) $(DRI_CXXFLAGS) $(DRIVER_DEFINES) $< -o $@

+

+.S.o:

+	$(CC) -c $(INCLUDES) $(DRI_CFLAGS) $(DRIVER_DEFINES) $< -o $@

+

+

+##### TARGETS #####

+

+default: subdirs lib

+

+

+.PHONY: lib

+lib: symlinks subdirs depend

+	@$(MAKE) $(LIBNAME) $(TOP)/$(LIB_DIR)/$(LIBNAME)

+

+$(LIBNAME): $(OBJECTS) $(EXTRA_MODULES) $(MESA_MODULES) Makefile \

+		$(TOP)/src/mesa/drivers/dri/Makefile.template $(TOP)/src/mesa/drivers/dri/common/dri_test.o

+	$(MKLIB) -o $@.tmp -noprefix -linker '$(CXX)' -ldflags '$(LDFLAGS)' \

+		$(OBJECTS) $(EXTRA_MODULES) $(DRI_LIB_DEPS)

+	$(CXX) $(CFLAGS) -o $@.test $(TOP)/src/mesa/drivers/dri/common/dri_test.o $@.tmp $(DRI_LIB_DEPS)

+	@rm -f $@.test

+	mv -f $@.tmp $@

+

+

+$(TOP)/$(LIB_DIR)/$(LIBNAME): $(LIBNAME)

+	$(INSTALL) $(LIBNAME) $(TOP)/$(LIB_DIR) 

+

+

+# If the Makefile defined SUBDIRS, run make in each

+.PHONY: subdirs

+subdirs:

+	@if test -n "$(SUBDIRS)" ; then \

+		for dir in $(SUBDIRS) ; do \

+			if [ -d $$dir ] ; then \

+				(cd $$dir && $(MAKE)) || exit 1; \

+			fi \

+		done \

+	fi

+

+

+.PHONY: symlinks

+symlinks:

+

+

+depend: $(C_SOURCES) $(CXX_SOURCES) $(ASM_SOURCES) $(SYMLINKS)

+	@ echo "running $(MKDEP)"

+	@ rm -f depend

+	@ touch depend

+	@ $(MKDEP) $(MKDEP_OPTIONS) $(DRIVER_DEFINES) $(INCLUDES) \

+		$(C_SOURCES) $(CXX_SOURCES) \

+		$(ASM_SOURCES) > /dev/null 2>/dev/null

+

+

+# Emacs tags

+tags:

+	etags `find . -name \*.[ch]` `find ../include`

+

+

+# Remove .o and backup files

+clean:

+	-rm -f *.o */*.o *~ *.so *~ server/*.o $(SYMLINKS)

+	-rm -f depend depend.bak

+

+

+install: $(LIBNAME)

+	$(INSTALL) -d $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)

+	$(MINSTALL) -m 755 $(LIBNAME) $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)

+

+

+-include depend

diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.c b/mesalib/src/mesa/drivers/dri/common/dri_util.c
index 82638fa72..6d3dd0a2c 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.c
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.c
@@ -1,1030 +1,1030 @@
-/**
- * \file dri_util.c
- * DRI utility functions.
- *
- * This module acts as glue between GLX and the actual hardware driver.  A DRI
- * driver doesn't really \e have to use any of this - it's optional.  But, some
- * useful stuff is done here that otherwise would have to be duplicated in most
- * drivers.
- * 
- * Basically, these utility functions take care of some of the dirty details of
- * screen initialization, context creation, context binding, DRM setup, etc.
- *
- * These functions are compiled into each DRI driver so libGL.so knows nothing
- * about them.
- */
-
-
-#include <assert.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <stdio.h>
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((void *)-1)
-#endif
-
-#include "main/imports.h"
-#define None 0
-
-#include "dri_util.h"
-#include "drm_sarea.h"
-#include "utils.h"
-#include "xmlpool.h"
-#include "../glsl/glsl_parser_extras.h"
-
-PUBLIC const char __dri2ConfigOptions[] =
-   DRI_CONF_BEGIN
-      DRI_CONF_SECTION_PERFORMANCE
-         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1)
-      DRI_CONF_SECTION_END
-   DRI_CONF_END;
-
-static const uint __dri2NConfigOptions = 1;
-
-#ifndef GLX_OML_sync_control
-typedef GLboolean ( * PFNGLXGETMSCRATEOMLPROC) (__DRIdrawable *drawable, int32_t *numerator, int32_t *denominator);
-#endif
-
-static void dri_get_drawable(__DRIdrawable *pdp);
-static void dri_put_drawable(__DRIdrawable *pdp);
-
-/**
- * This is just a token extension used to signal that the driver
- * supports setting a read drawable.
- */
-const __DRIextension driReadDrawableExtension = {
-    __DRI_READ_DRAWABLE, __DRI_READ_DRAWABLE_VERSION
-};
-
-GLint
-driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 )
-{
-   if (rect2.x1 > rect1.x1) rect1.x1 = rect2.x1;
-   if (rect2.x2 < rect1.x2) rect1.x2 = rect2.x2;
-   if (rect2.y1 > rect1.y1) rect1.y1 = rect2.y1;
-   if (rect2.y2 < rect1.y2) rect1.y2 = rect2.y2;
-
-   if (rect1.x1 > rect1.x2 || rect1.y1 > rect1.y2) return 0;
-
-   return (rect1.x2 - rect1.x1) * (rect1.y2 - rect1.y1);
-}
-
-/*****************************************************************/
-/** \name Context (un)binding functions                          */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Unbind context.
- * 
- * \param scrn the screen.
- * \param gc context.
- *
- * \return \c GL_TRUE on success, or \c GL_FALSE on failure.
- * 
- * \internal
- * This function calls __DriverAPIRec::UnbindContext, and then decrements
- * __DRIdrawableRec::refcount which must be non-zero for a successful
- * return.
- * 
- * While casting the opaque private pointers associated with the parameters
- * into their respective real types it also assures they are not \c NULL. 
- */
-static int driUnbindContext(__DRIcontext *pcp)
-{
-    __DRIscreen *psp;
-    __DRIdrawable *pdp;
-    __DRIdrawable *prp;
-
-    /*
-    ** Assume error checking is done properly in glXMakeCurrent before
-    ** calling driUnbindContext.
-    */
-
-    if (pcp == NULL)
-        return GL_FALSE;
-
-    psp = pcp->driScreenPriv;
-    pdp = pcp->driDrawablePriv;
-    prp = pcp->driReadablePriv;
-
-    /* already unbound */
-    if (!pdp && !prp)
-      return GL_TRUE;
-    /* Let driver unbind drawable from context */
-    (*psp->DriverAPI.UnbindContext)(pcp);
-
-    assert(pdp);
-    if (pdp->refcount == 0) {
-	/* ERROR!!! */
-	return GL_FALSE;
-    }
-
-    dri_put_drawable(pdp);
-
-    if (prp != pdp) {
-        if (prp->refcount == 0) {
-	    /* ERROR!!! */
-	    return GL_FALSE;
-	}
-
-    	dri_put_drawable(prp);
-    }
-
-
-    /* XXX this is disabled so that if we call SwapBuffers on an unbound
-     * window we can determine the last context bound to the window and
-     * use that context's lock. (BrianP, 2-Dec-2000)
-     */
-    pcp->driDrawablePriv = pcp->driReadablePriv = NULL;
-
-    return GL_TRUE;
-}
-
-/**
- * This function takes both a read buffer and a draw buffer.  This is needed
- * for \c glXMakeCurrentReadSGI or GLX 1.3's \c glXMakeContextCurrent
- * function.
- */
-static int driBindContext(__DRIcontext *pcp,
-			  __DRIdrawable *pdp,
-			  __DRIdrawable *prp)
-{
-    __DRIscreen *psp = NULL;
-
-    /*
-    ** Assume error checking is done properly in glXMakeCurrent before
-    ** calling driUnbindContext.
-    */
-
-    if (!pcp)
-	return GL_FALSE;
-
-    /* Bind the drawable to the context */
-    psp = pcp->driScreenPriv;
-    pcp->driDrawablePriv = pdp;
-    pcp->driReadablePriv = prp;
-    if (pdp) {
-	pdp->driContextPriv = pcp;
-	dri_get_drawable(pdp);
-    }
-    if (prp && pdp != prp) {
-	dri_get_drawable(prp);
-    }
-
-    /*
-    ** Now that we have a context associated with this drawable, we can
-    ** initialize the drawable information if has not been done before.
-    */
-
-    if (!psp->dri2.enabled) {
-	if (pdp && !pdp->pStamp) {
-	    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-	    __driUtilUpdateDrawableInfo(pdp);
-	    DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-	}
-	if (prp && pdp != prp && !prp->pStamp) {
-	    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-	    __driUtilUpdateDrawableInfo(prp);
-	    DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-        }
-    }
-
-    /* Call device-specific MakeCurrent */
-    return (*psp->DriverAPI.MakeCurrent)(pcp, pdp, prp);
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Drawable handling functions                            */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Update private drawable information.
- *
- * \param pdp pointer to the private drawable information to update.
- * 
- * This function basically updates the __DRIdrawable struct's
- * cliprect information by calling \c __DRIinterfaceMethods::getDrawableInfo.
- * This is usually called by the DRI_VALIDATE_DRAWABLE_INFO macro which
- * compares the __DRIdrwablePrivate pStamp and lastStamp values.  If
- * the values are different that means we have to update the clipping
- * info.
- */
-void
-__driUtilUpdateDrawableInfo(__DRIdrawable *pdp)
-{
-    __DRIscreen *psp = pdp->driScreenPriv;
-    __DRIcontext *pcp = pdp->driContextPriv;
-    
-    if (!pcp 
-	|| ((pdp != pcp->driDrawablePriv) && (pdp != pcp->driReadablePriv))) {
-	/* ERROR!!! 
-	 * ...but we must ignore it. There can be many contexts bound to a
-	 * drawable.
-	 */
-    }
-
-    if (pdp->pClipRects) {
-	free(pdp->pClipRects); 
-	pdp->pClipRects = NULL;
-    }
-
-    if (pdp->pBackClipRects) {
-	free(pdp->pBackClipRects); 
-	pdp->pBackClipRects = NULL;
-    }
-
-    DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-
-    if (! (*psp->getDrawableInfo->getDrawableInfo)(pdp,
-			  &pdp->index, &pdp->lastStamp,
-			  &pdp->x, &pdp->y, &pdp->w, &pdp->h,
-			  &pdp->numClipRects, &pdp->pClipRects,
-			  &pdp->backX,
-			  &pdp->backY,
-			  &pdp->numBackClipRects,
-			  &pdp->pBackClipRects,
-			  pdp->loaderPrivate)) {
-	/* Error -- eg the window may have been destroyed.  Keep going
-	 * with no cliprects.
-	 */
-        pdp->pStamp = &pdp->lastStamp; /* prevent endless loop */
-	pdp->numClipRects = 0;
-	pdp->pClipRects = NULL;
-	pdp->numBackClipRects = 0;
-	pdp->pBackClipRects = NULL;
-    }
-    else
-       pdp->pStamp = &(psp->pSAREA->drawableTable[pdp->index].stamp);
-
-    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-}
-
-/*@}*/
-
-/*****************************************************************/
-/** \name GLX callbacks                                          */
-/*****************************************************************/
-/*@{*/
-
-static void driReportDamage(__DRIdrawable *pdp,
-			    struct drm_clip_rect *pClipRects, int numClipRects)
-{
-    __DRIscreen *psp = pdp->driScreenPriv;
-
-    /* Check that we actually have the new damage report method */
-    if (psp->damage) {
-	/* Report the damage.  Currently, all our drivers draw
-	 * directly to the front buffer, so we report the damage there
-	 * rather than to the backing storein (if any).
-	 */
-	(*psp->damage->reportDamage)(pdp,
-				     pdp->x, pdp->y,
-				     pClipRects, numClipRects,
-				     GL_TRUE, pdp->loaderPrivate);
-    }
-}
-
-
-/**
- * Swap buffers.
- *
- * \param drawablePrivate opaque pointer to the per-drawable private info.
- * 
- * \internal
- * This function calls __DRIdrawable::swapBuffers.
- * 
- * Is called directly from glXSwapBuffers().
- */
-static void driSwapBuffers(__DRIdrawable *dPriv)
-{
-    __DRIscreen *psp = dPriv->driScreenPriv;
-    drm_clip_rect_t *rects;
-    int i;
-
-    psp->DriverAPI.SwapBuffers(dPriv);
-
-    if (!dPriv->numClipRects)
-        return;
-
-    rects = malloc(sizeof(*rects) * dPriv->numClipRects);
-
-    if (!rects)
-        return;
-
-    for (i = 0; i < dPriv->numClipRects; i++) {
-        rects[i].x1 = dPriv->pClipRects[i].x1 - dPriv->x;
-        rects[i].y1 = dPriv->pClipRects[i].y1 - dPriv->y;
-        rects[i].x2 = dPriv->pClipRects[i].x2 - dPriv->x;
-        rects[i].y2 = dPriv->pClipRects[i].y2 - dPriv->y;
-    }
-
-    driReportDamage(dPriv, rects, dPriv->numClipRects);
-    free(rects);
-}
-
-static int driDrawableGetMSC( __DRIscreen *sPriv, __DRIdrawable *dPriv,
-			      int64_t *msc )
-{
-    return sPriv->DriverAPI.GetDrawableMSC(sPriv, dPriv, msc);
-}
-
-
-static int driWaitForMSC(__DRIdrawable *dPriv, int64_t target_msc,
-			 int64_t divisor, int64_t remainder,
-			 int64_t * msc, int64_t * sbc)
-{
-    __DRIswapInfo  sInfo;
-    int  status;
-
-    status = dPriv->driScreenPriv->DriverAPI.WaitForMSC( dPriv, target_msc,
-                                                         divisor, remainder,
-                                                         msc );
-
-    /* GetSwapInfo() may not be provided by the driver if GLX_SGI_video_sync
-     * is supported but GLX_OML_sync_control is not.  Therefore, don't return
-     * an error value if GetSwapInfo() is not implemented.
-    */
-    if ( status == 0
-         && dPriv->driScreenPriv->DriverAPI.GetSwapInfo ) {
-        status = dPriv->driScreenPriv->DriverAPI.GetSwapInfo( dPriv, & sInfo );
-        *sbc = sInfo.swap_count;
-    }
-
-    return status;
-}
-
-
-const __DRImediaStreamCounterExtension driMediaStreamCounterExtension = {
-    { __DRI_MEDIA_STREAM_COUNTER, __DRI_MEDIA_STREAM_COUNTER_VERSION },
-    driWaitForMSC,
-    driDrawableGetMSC,
-};
-
-
-static void driCopySubBuffer(__DRIdrawable *dPriv,
-			      int x, int y, int w, int h)
-{
-    drm_clip_rect_t rect;
-
-    rect.x1 = x;
-    rect.y1 = dPriv->h - y - h;
-    rect.x2 = x + w;
-    rect.y2 = rect.y1 + h;
-    driReportDamage(dPriv, &rect, 1);
-
-    dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);
-}
-
-const __DRIcopySubBufferExtension driCopySubBufferExtension = {
-    { __DRI_COPY_SUB_BUFFER, __DRI_COPY_SUB_BUFFER_VERSION },
-    driCopySubBuffer
-};
-
-static void driSetSwapInterval(__DRIdrawable *dPriv, unsigned int interval)
-{
-    dPriv->swap_interval = interval;
-}
-
-static unsigned int driGetSwapInterval(__DRIdrawable *dPriv)
-{
-    return dPriv->swap_interval;
-}
-
-const __DRIswapControlExtension driSwapControlExtension = {
-    { __DRI_SWAP_CONTROL, __DRI_SWAP_CONTROL_VERSION },
-    driSetSwapInterval,
-    driGetSwapInterval
-};
-
-
-/**
- * This is called via __DRIscreenRec's createNewDrawable pointer.
- */
-static __DRIdrawable *
-driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config,
-		     drm_drawable_t hwDrawable, int renderType,
-		     const int *attrs, void *data)
-{
-    __DRIdrawable *pdp;
-
-    /* Since pbuffers are not yet supported, no drawable attributes are
-     * supported either.
-     */
-    (void) attrs;
-
-    pdp = malloc(sizeof *pdp);
-    if (!pdp) {
-	return NULL;
-    }
-
-    pdp->driContextPriv = NULL;
-    pdp->loaderPrivate = data;
-    pdp->hHWDrawable = hwDrawable;
-    pdp->refcount = 1;
-    pdp->pStamp = NULL;
-    pdp->lastStamp = 0;
-    pdp->index = 0;
-    pdp->x = 0;
-    pdp->y = 0;
-    pdp->w = 0;
-    pdp->h = 0;
-    pdp->numClipRects = 0;
-    pdp->numBackClipRects = 0;
-    pdp->pClipRects = NULL;
-    pdp->pBackClipRects = NULL;
-    pdp->vblSeq = 0;
-    pdp->vblFlags = 0;
-
-    pdp->driScreenPriv = psp;
-
-    if (!(*psp->DriverAPI.CreateBuffer)(psp, pdp, &config->modes, 0)) {
-       free(pdp);
-       return NULL;
-    }
-
-    pdp->msc_base = 0;
-
-    /* This special default value is replaced with the configured
-     * default value when the drawable is first bound to a direct
-     * rendering context. 
-     */
-    pdp->swap_interval = (unsigned)-1;
-
-    return pdp;
-}
-
-
-static __DRIdrawable *
-dri2CreateNewDrawable(__DRIscreen *screen,
-		      const __DRIconfig *config,
-		      void *loaderPrivate)
-{
-    __DRIdrawable *pdraw;
-
-    pdraw = driCreateNewDrawable(screen, config, 0, 0, NULL, loaderPrivate);
-    if (!pdraw)
-    	return NULL;
-
-    pdraw->pClipRects = &pdraw->dri2.clipRect;
-    pdraw->pBackClipRects = &pdraw->dri2.clipRect;
-
-    pdraw->pStamp = &pdraw->dri2.stamp;
-    *pdraw->pStamp = pdraw->lastStamp + 1;
-
-    return pdraw;
-}
-
-static __DRIbuffer *
-dri2AllocateBuffer(__DRIscreen *screen,
-		   unsigned int attachment, unsigned int format,
-		   int width, int height)
-{
-    return (*screen->DriverAPI.AllocateBuffer)(screen, attachment, format,
-					       width, height);
-}
-
-static void
-dri2ReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
-{
-   (*screen->DriverAPI.ReleaseBuffer)(screen, buffer);
-}
-
-
-static int
-dri2ConfigQueryb(__DRIscreen *screen, const char *var, GLboolean *val)
-{
-   if (!driCheckOption(&screen->optionCache, var, DRI_BOOL))
-      return -1;
-
-   *val = driQueryOptionb(&screen->optionCache, var);
-
-   return 0;
-}
-
-static int
-dri2ConfigQueryi(__DRIscreen *screen, const char *var, GLint *val)
-{
-   if (!driCheckOption(&screen->optionCache, var, DRI_INT) &&
-       !driCheckOption(&screen->optionCache, var, DRI_ENUM))
-      return -1;
-
-    *val = driQueryOptioni(&screen->optionCache, var);
-
-    return 0;
-}
-
-static int
-dri2ConfigQueryf(__DRIscreen *screen, const char *var, GLfloat *val)
-{
-   if (!driCheckOption(&screen->optionCache, var, DRI_FLOAT))
-      return -1;
-
-    *val = driQueryOptionf(&screen->optionCache, var);
-
-    return 0;
-}
-
-
-static void dri_get_drawable(__DRIdrawable *pdp)
-{
-    pdp->refcount++;
-}
-	
-static void dri_put_drawable(__DRIdrawable *pdp)
-{
-    __DRIscreen *psp;
-
-    if (pdp) {
-	pdp->refcount--;
-	if (pdp->refcount)
-	    return;
-
-	psp = pdp->driScreenPriv;
-        (*psp->DriverAPI.DestroyBuffer)(pdp);
-	if (pdp->pClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {
-	    free(pdp->pClipRects);
-	    pdp->pClipRects = NULL;
-	}
-	if (pdp->pBackClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {
-	    free(pdp->pBackClipRects);
-	    pdp->pBackClipRects = NULL;
-	}
-	free(pdp);
-    }
-}
-
-static void
-driDestroyDrawable(__DRIdrawable *pdp)
-{
-    dri_put_drawable(pdp);
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Context handling functions                             */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Destroy the per-context private information.
- * 
- * \internal
- * This function calls __DriverAPIRec::DestroyContext on \p contextPrivate, calls
- * drmDestroyContext(), and finally frees \p contextPrivate.
- */
-static void
-driDestroyContext(__DRIcontext *pcp)
-{
-    if (pcp) {
-	(*pcp->driScreenPriv->DriverAPI.DestroyContext)(pcp);
-	free(pcp);
-    }
-}
-
-
-/**
- * Create the per-drawable private driver information.
- * 
- * \param render_type   Type of rendering target.  \c GLX_RGBA is the only
- *                      type likely to ever be supported for direct-rendering.
- * \param shared        Context with which to share textures, etc. or NULL
- *
- * \returns An opaque pointer to the per-context private information on
- *          success, or \c NULL on failure.
- * 
- * \internal
- * This function allocates and fills a __DRIcontextRec structure.  It
- * performs some device independent initialization and passes all the
- * relevent information to __DriverAPIRec::CreateContext to create the
- * context.
- *
- */
-static __DRIcontext *
-driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,
-		    int render_type, __DRIcontext *shared, 
-		    drm_context_t hwContext, void *data)
-{
-    __DRIcontext *pcp;
-    void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
-
-    pcp = malloc(sizeof *pcp);
-    if (!pcp)
-	return NULL;
-
-    pcp->driScreenPriv = psp;
-    pcp->driDrawablePriv = NULL;
-    pcp->loaderPrivate = data;
-    
-    pcp->dri2.draw_stamp = 0;
-    pcp->dri2.read_stamp = 0;
-
-    pcp->hHWContext = hwContext;
-
-    if ( !(*psp->DriverAPI.CreateContext)(API_OPENGL,
-					  &config->modes, pcp, shareCtx) ) {
-        free(pcp);
-        return NULL;
-    }
-
-    return pcp;
-}
-
-static unsigned int
-dri2GetAPIMask(__DRIscreen *screen)
-{
-    return screen->api_mask;
-}
-
-static __DRIcontext *
-dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
-			   const __DRIconfig *config,
-			   __DRIcontext *shared, void *data)
-{
-    __DRIcontext *context;
-    const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;
-    void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
-    gl_api mesa_api;
-
-    if (!(screen->api_mask & (1 << api)))
-	return NULL;
-
-    switch (api) {
-    case __DRI_API_OPENGL:
-	    mesa_api = API_OPENGL;
-	    break;
-    case __DRI_API_GLES:
-	    mesa_api = API_OPENGLES;
-	    break;
-    case __DRI_API_GLES2:
-	    mesa_api = API_OPENGLES2;
-	    break;
-    default:
-	    return NULL;
-    }
-
-    context = malloc(sizeof *context);
-    if (!context)
-	return NULL;
-
-    context->driScreenPriv = screen;
-    context->driDrawablePriv = NULL;
-    context->loaderPrivate = data;
-    
-    if (!(*screen->DriverAPI.CreateContext)(mesa_api, modes,
-					    context, shareCtx) ) {
-        free(context);
-        return NULL;
-    }
-
-    return context;
-}
-
-
-static __DRIcontext *
-dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
-		      __DRIcontext *shared, void *data)
-{
-   return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL,
-				     config, shared, data);
-}
-
-static int
-driCopyContext(__DRIcontext *dest, __DRIcontext *src, unsigned long mask)
-{
-    return GL_FALSE;
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Screen handling functions                              */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Destroy the per-screen private information.
- * 
- * \internal
- * This function calls __DriverAPIRec::DestroyScreen on \p screenPrivate, calls
- * drmClose(), and finally frees \p screenPrivate.
- */
-static void driDestroyScreen(__DRIscreen *psp)
-{
-    if (psp) {
-	/* No interaction with the X-server is possible at this point.  This
-	 * routine is called after XCloseDisplay, so there is no protocol
-	 * stream open to the X-server anymore.
-	 */
-
-       _mesa_destroy_shader_compiler();
-
-	if (psp->DriverAPI.DestroyScreen)
-	    (*psp->DriverAPI.DestroyScreen)(psp);
-
-	if (!psp->dri2.enabled) {
-	   (void)drmUnmap((drmAddress)psp->pSAREA, SAREA_MAX);
-	   (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);
-	   (void)drmCloseOnce(psp->fd);
-	} else {
-	   driDestroyOptionCache(&psp->optionCache);
-	   driDestroyOptionInfo(&psp->optionInfo);
-	}
-
-	free(psp);
-    }
-}
-
-static void
-setupLoaderExtensions(__DRIscreen *psp,
-		      const __DRIextension **extensions)
-{
-    int i;
-
-    for (i = 0; extensions[i]; i++) {
-	if (strcmp(extensions[i]->name, __DRI_GET_DRAWABLE_INFO) == 0)
-	    psp->getDrawableInfo = (__DRIgetDrawableInfoExtension *) extensions[i];
-	if (strcmp(extensions[i]->name, __DRI_DAMAGE) == 0)
-	    psp->damage = (__DRIdamageExtension *) extensions[i];
-	if (strcmp(extensions[i]->name, __DRI_SYSTEM_TIME) == 0)
-	    psp->systemTime = (__DRIsystemTimeExtension *) extensions[i];
-	if (strcmp(extensions[i]->name, __DRI_DRI2_LOADER) == 0)
-	    psp->dri2.loader = (__DRIdri2LoaderExtension *) extensions[i];
-	if (strcmp(extensions[i]->name, __DRI_IMAGE_LOOKUP) == 0)
-	    psp->dri2.image = (__DRIimageLookupExtension *) extensions[i];
-	if (strcmp(extensions[i]->name, __DRI_USE_INVALIDATE) == 0)
-	    psp->dri2.useInvalidate = (__DRIuseInvalidateExtension *) extensions[i];
-    }
-}
-
-/**
- * This is the bootstrap function for the driver.  libGL supplies all of the
- * requisite information about the system, and the driver initializes itself.
- * This routine also fills in the linked list pointed to by \c driver_modes
- * with the \c struct gl_config that the driver can support for windows or
- * pbuffers.
- *
- * For legacy DRI.
- * 
- * \param scrn  Index of the screen
- * \param ddx_version Version of the 2D DDX.  This may not be meaningful for
- *                    all drivers.
- * \param dri_version Version of the "server-side" DRI.
- * \param drm_version Version of the kernel DRM.
- * \param frame_buffer Data describing the location and layout of the
- *                     framebuffer.
- * \param pSAREA       Pointer to the SAREA.
- * \param fd           Device handle for the DRM.
- * \param extensions   ??
- * \param driver_modes  Returns modes suppoted by the driver
- * \param loaderPrivate  ??
- * 
- * \note There is no need to check the minimum API version in this
- * function.  Since the name of this function is versioned, it is
- * impossible for a loader that is too old to even load this driver.
- */
-static __DRIscreen *
-driCreateNewScreen(int scrn,
-		   const __DRIversion *ddx_version,
-		   const __DRIversion *dri_version,
-		   const __DRIversion *drm_version,
-		   const __DRIframebuffer *frame_buffer,
-		   drmAddress pSAREA, int fd, 
-		   const __DRIextension **extensions,
-		   const __DRIconfig ***driver_modes,
-		   void *loaderPrivate)
-{
-    static const __DRIextension *emptyExtensionList[] = { NULL };
-    __DRIscreen *psp;
-
-    if (driDriverAPI.InitScreen == NULL)
-	return NULL;
-
-    psp = calloc(1, sizeof *psp);
-    if (!psp)
-	return NULL;
-
-    setupLoaderExtensions(psp, extensions);
-
-    /*
-    ** NOT_DONE: This is used by the X server to detect when the client
-    ** has died while holding the drawable lock.  The client sets the
-    ** drawable lock to this value.
-    */
-    psp->drawLockID = 1;
-
-    psp->drm_version = *drm_version;
-    psp->ddx_version = *ddx_version;
-    psp->dri_version = *dri_version;
-
-    psp->pSAREA = pSAREA;
-    psp->lock = (drmLock *) &psp->pSAREA->lock;
-
-    psp->pFB = frame_buffer->base;
-    psp->fbSize = frame_buffer->size;
-    psp->fbStride = frame_buffer->stride;
-    psp->fbWidth = frame_buffer->width;
-    psp->fbHeight = frame_buffer->height;
-    psp->devPrivSize = frame_buffer->dev_priv_size;
-    psp->pDevPriv = frame_buffer->dev_priv;
-    psp->fbBPP = psp->fbStride * 8 / frame_buffer->width;
-
-    psp->extensions = emptyExtensionList;
-    psp->fd = fd;
-    psp->myNum = scrn;
-    psp->dri2.enabled = GL_FALSE;
-
-    psp->DriverAPI = driDriverAPI;
-    psp->api_mask = (1 << __DRI_API_OPENGL);
-
-    *driver_modes = driDriverAPI.InitScreen(psp);
-    if (*driver_modes == NULL) {
-	free(psp);
-	return NULL;
-    }
-
-    return psp;
-}
-
-/**
- * DRI2
- */
-static __DRIscreen *
-dri2CreateNewScreen(int scrn, int fd,
-		    const __DRIextension **extensions,
-		    const __DRIconfig ***driver_configs, void *data)
-{
-    static const __DRIextension *emptyExtensionList[] = { NULL };
-    __DRIscreen *psp;
-    drmVersionPtr version;
-
-    if (driDriverAPI.InitScreen2 == NULL)
-        return NULL;
-
-    psp = calloc(1, sizeof(*psp));
-    if (!psp)
-	return NULL;
-
-    setupLoaderExtensions(psp, extensions);
-
-    version = drmGetVersion(fd);
-    if (version) {
-	psp->drm_version.major = version->version_major;
-	psp->drm_version.minor = version->version_minor;
-	psp->drm_version.patch = version->version_patchlevel;
-	drmFreeVersion(version);
-    }
-
-    psp->extensions = emptyExtensionList;
-    psp->fd = fd;
-    psp->myNum = scrn;
-    psp->dri2.enabled = GL_TRUE;
-
-    psp->DriverAPI = driDriverAPI;
-    psp->api_mask = (1 << __DRI_API_OPENGL);
-    *driver_configs = driDriverAPI.InitScreen2(psp);
-    if (*driver_configs == NULL) {
-	free(psp);
-	return NULL;
-    }
-
-    psp->DriverAPI = driDriverAPI;
-    psp->loaderPrivate = data;
-
-    driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions,
-		       __dri2NConfigOptions);
-    driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum,
-			"dri2");
-
-    return psp;
-}
-
-static const __DRIextension **driGetExtensions(__DRIscreen *psp)
-{
-    return psp->extensions;
-}
-
-/** Core interface */
-const __DRIcoreExtension driCoreExtension = {
-    { __DRI_CORE, __DRI_CORE_VERSION },
-    NULL,
-    driDestroyScreen,
-    driGetExtensions,
-    driGetConfigAttrib,
-    driIndexConfigAttrib,
-    NULL,
-    driDestroyDrawable,
-    driSwapBuffers,
-    NULL,
-    driCopyContext,
-    driDestroyContext,
-    driBindContext,
-    driUnbindContext
-};
-
-/** Legacy DRI interface */
-const __DRIlegacyExtension driLegacyExtension = {
-    { __DRI_LEGACY, __DRI_LEGACY_VERSION },
-    driCreateNewScreen,
-    driCreateNewDrawable,
-    driCreateNewContext,
-};
-
-/** DRI2 interface */
-const __DRIdri2Extension driDRI2Extension = {
-    { __DRI_DRI2, __DRI_DRI2_VERSION },
-    dri2CreateNewScreen,
-    dri2CreateNewDrawable,
-    dri2CreateNewContext,
-    dri2GetAPIMask,
-    dri2CreateNewContextForAPI,
-    dri2AllocateBuffer,
-    dri2ReleaseBuffer
-};
-
-const __DRI2configQueryExtension dri2ConfigQueryExtension = {
-   { __DRI2_CONFIG_QUERY, __DRI2_CONFIG_QUERY_VERSION },
-   dri2ConfigQueryb,
-   dri2ConfigQueryi,
-   dri2ConfigQueryf,
-};
-
-/**
- * Calculate amount of swap interval used between GLX buffer swaps.
- * 
- * The usage value, on the range [0,max], is the fraction of total swap
- * interval time used between GLX buffer swaps is calculated.
- *
- *            \f$p = t_d / (i * t_r)\f$
- * 
- * Where \f$t_d\f$ is the time since the last GLX buffer swap, \f$i\f$ is the
- * swap interval (as set by \c glXSwapIntervalSGI), and \f$t_r\f$ time
- * required for a single vertical refresh period (as returned by \c
- * glXGetMscRateOML).
- * 
- * See the documentation for the GLX_MESA_swap_frame_usage extension for more
- * details.
- *
- * \param   dPriv  Pointer to the private drawable structure.
- * \return  If less than a single swap interval time period was required
- *          between GLX buffer swaps, a number greater than 0 and less than
- *          1.0 is returned.  If exactly one swap interval time period is
- *          required, 1.0 is returned, and if more than one is required then
- *          a number greater than 1.0 will be returned.
- *
- * \sa glXSwapIntervalSGI glXGetMscRateOML
- * 
- * \todo Instead of caching the \c glXGetMscRateOML function pointer, would it
- *       be possible to cache the sync rate?
- */
-float
-driCalculateSwapUsage( __DRIdrawable *dPriv, int64_t last_swap_ust,
-		       int64_t current_ust )
-{
-   int32_t   n;
-   int32_t   d;
-   int       interval;
-   float     usage = 1.0;
-   __DRIscreen *psp = dPriv->driScreenPriv;
-
-   if ( (*psp->systemTime->getMSCRate)(dPriv, &n, &d, dPriv->loaderPrivate) ) {
-      interval = (dPriv->swap_interval != 0) ? dPriv->swap_interval : 1;
-
-
-      /* We want to calculate
-       * (current_UST - last_swap_UST) / (interval * us_per_refresh).  We get
-       * current_UST by calling __glXGetUST.  last_swap_UST is stored in
-       * dPriv->swap_ust.  interval has already been calculated.
-       *
-       * The only tricky part is us_per_refresh.  us_per_refresh is
-       * 1000000 / MSC_rate.  We know the MSC_rate is n / d.  We can flip it
-       * around and say us_per_refresh = 1000000 * d / n.  Since this goes in
-       * the denominator of the final calculation, we calculate
-       * (interval * 1000000 * d) and move n into the numerator.
-       */
-
-      usage = (current_ust - last_swap_ust);
-      usage *= n;
-      usage /= (interval * d);
-      usage /= 1000000.0;
-   }
-   
-   return usage;
-}
-
-void
-dri2InvalidateDrawable(__DRIdrawable *drawable)
-{
-    drawable->dri2.stamp++;
-}
-
-/*@}*/
+/**

+ * \file dri_util.c

+ * DRI utility functions.

+ *

+ * This module acts as glue between GLX and the actual hardware driver.  A DRI

+ * driver doesn't really \e have to use any of this - it's optional.  But, some

+ * useful stuff is done here that otherwise would have to be duplicated in most

+ * drivers.

+ * 

+ * Basically, these utility functions take care of some of the dirty details of

+ * screen initialization, context creation, context binding, DRM setup, etc.

+ *

+ * These functions are compiled into each DRI driver so libGL.so knows nothing

+ * about them.

+ */

+

+

+#include <assert.h>

+#include <stdarg.h>

+#include <unistd.h>

+#include <sys/mman.h>

+#include <stdio.h>

+

+#ifndef MAP_FAILED

+#define MAP_FAILED ((void *)-1)

+#endif

+

+#include "main/imports.h"

+#define None 0

+

+#include "dri_util.h"

+#include "drm_sarea.h"

+#include "utils.h"

+#include "xmlpool.h"

+#include "../glsl/glsl_parser_extras.h"

+

+PUBLIC const char __dri2ConfigOptions[] =

+   DRI_CONF_BEGIN

+      DRI_CONF_SECTION_PERFORMANCE

+         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1)

+      DRI_CONF_SECTION_END

+   DRI_CONF_END;

+

+static const uint __dri2NConfigOptions = 1;

+

+#ifndef GLX_OML_sync_control

+typedef GLboolean ( * PFNGLXGETMSCRATEOMLPROC) (__DRIdrawable *drawable, int32_t *numerator, int32_t *denominator);

+#endif

+

+static void dri_get_drawable(__DRIdrawable *pdp);

+static void dri_put_drawable(__DRIdrawable *pdp);

+

+/**

+ * This is just a token extension used to signal that the driver

+ * supports setting a read drawable.

+ */

+const __DRIextension driReadDrawableExtension = {

+    __DRI_READ_DRAWABLE, __DRI_READ_DRAWABLE_VERSION

+};

+

+GLint

+driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 )

+{

+   if (rect2.x1 > rect1.x1) rect1.x1 = rect2.x1;

+   if (rect2.x2 < rect1.x2) rect1.x2 = rect2.x2;

+   if (rect2.y1 > rect1.y1) rect1.y1 = rect2.y1;

+   if (rect2.y2 < rect1.y2) rect1.y2 = rect2.y2;

+

+   if (rect1.x1 > rect1.x2 || rect1.y1 > rect1.y2) return 0;

+

+   return (rect1.x2 - rect1.x1) * (rect1.y2 - rect1.y1);

+}

+

+/*****************************************************************/

+/** \name Context (un)binding functions                          */

+/*****************************************************************/

+/*@{*/

+

+/**

+ * Unbind context.

+ * 

+ * \param scrn the screen.

+ * \param gc context.

+ *

+ * \return \c GL_TRUE on success, or \c GL_FALSE on failure.

+ * 

+ * \internal

+ * This function calls __DriverAPIRec::UnbindContext, and then decrements

+ * __DRIdrawableRec::refcount which must be non-zero for a successful

+ * return.

+ * 

+ * While casting the opaque private pointers associated with the parameters

+ * into their respective real types it also assures they are not \c NULL. 

+ */

+static int driUnbindContext(__DRIcontext *pcp)

+{

+    __DRIscreen *psp;

+    __DRIdrawable *pdp;

+    __DRIdrawable *prp;

+

+    /*

+    ** Assume error checking is done properly in glXMakeCurrent before

+    ** calling driUnbindContext.

+    */

+

+    if (pcp == NULL)

+        return GL_FALSE;

+

+    psp = pcp->driScreenPriv;

+    pdp = pcp->driDrawablePriv;

+    prp = pcp->driReadablePriv;

+

+    /* already unbound */

+    if (!pdp && !prp)

+      return GL_TRUE;

+    /* Let driver unbind drawable from context */

+    (*psp->DriverAPI.UnbindContext)(pcp);

+

+    assert(pdp);

+    if (pdp->refcount == 0) {

+	/* ERROR!!! */

+	return GL_FALSE;

+    }

+

+    dri_put_drawable(pdp);

+

+    if (prp != pdp) {

+        if (prp->refcount == 0) {

+	    /* ERROR!!! */

+	    return GL_FALSE;

+	}

+

+    	dri_put_drawable(prp);

+    }

+

+

+    /* XXX this is disabled so that if we call SwapBuffers on an unbound

+     * window we can determine the last context bound to the window and

+     * use that context's lock. (BrianP, 2-Dec-2000)

+     */

+    pcp->driDrawablePriv = pcp->driReadablePriv = NULL;

+

+    return GL_TRUE;

+}

+

+/**

+ * This function takes both a read buffer and a draw buffer.  This is needed

+ * for \c glXMakeCurrentReadSGI or GLX 1.3's \c glXMakeContextCurrent

+ * function.

+ */

+static int driBindContext(__DRIcontext *pcp,

+			  __DRIdrawable *pdp,

+			  __DRIdrawable *prp)

+{

+    __DRIscreen *psp = NULL;

+

+    /*

+    ** Assume error checking is done properly in glXMakeCurrent before

+    ** calling driUnbindContext.

+    */

+

+    if (!pcp)

+	return GL_FALSE;

+

+    /* Bind the drawable to the context */

+    psp = pcp->driScreenPriv;

+    pcp->driDrawablePriv = pdp;

+    pcp->driReadablePriv = prp;

+    if (pdp) {

+	pdp->driContextPriv = pcp;

+	dri_get_drawable(pdp);

+    }

+    if (prp && pdp != prp) {

+	dri_get_drawable(prp);

+    }

+

+    /*

+    ** Now that we have a context associated with this drawable, we can

+    ** initialize the drawable information if has not been done before.

+    */

+

+    if (!psp->dri2.enabled) {

+	if (pdp && !pdp->pStamp) {

+	    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);

+	    __driUtilUpdateDrawableInfo(pdp);

+	    DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);

+	}

+	if (prp && pdp != prp && !prp->pStamp) {

+	    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);

+	    __driUtilUpdateDrawableInfo(prp);

+	    DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);

+        }

+    }

+

+    /* Call device-specific MakeCurrent */

+    return (*psp->DriverAPI.MakeCurrent)(pcp, pdp, prp);

+}

+

+/*@}*/

+

+

+/*****************************************************************/

+/** \name Drawable handling functions                            */

+/*****************************************************************/

+/*@{*/

+

+/**

+ * Update private drawable information.

+ *

+ * \param pdp pointer to the private drawable information to update.

+ * 

+ * This function basically updates the __DRIdrawable struct's

+ * cliprect information by calling \c __DRIinterfaceMethods::getDrawableInfo.

+ * This is usually called by the DRI_VALIDATE_DRAWABLE_INFO macro which

+ * compares the __DRIdrwablePrivate pStamp and lastStamp values.  If

+ * the values are different that means we have to update the clipping

+ * info.

+ */

+void

+__driUtilUpdateDrawableInfo(__DRIdrawable *pdp)

+{

+    __DRIscreen *psp = pdp->driScreenPriv;

+    __DRIcontext *pcp = pdp->driContextPriv;

+    

+    if (!pcp 

+	|| ((pdp != pcp->driDrawablePriv) && (pdp != pcp->driReadablePriv))) {

+	/* ERROR!!! 

+	 * ...but we must ignore it. There can be many contexts bound to a

+	 * drawable.

+	 */

+    }

+

+    if (pdp->pClipRects) {

+	free(pdp->pClipRects); 

+	pdp->pClipRects = NULL;

+    }

+

+    if (pdp->pBackClipRects) {

+	free(pdp->pBackClipRects); 

+	pdp->pBackClipRects = NULL;

+    }

+

+    DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);

+

+    if (! (*psp->getDrawableInfo->getDrawableInfo)(pdp,

+			  &pdp->index, &pdp->lastStamp,

+			  &pdp->x, &pdp->y, &pdp->w, &pdp->h,

+			  &pdp->numClipRects, &pdp->pClipRects,

+			  &pdp->backX,

+			  &pdp->backY,

+			  &pdp->numBackClipRects,

+			  &pdp->pBackClipRects,

+			  pdp->loaderPrivate)) {

+	/* Error -- eg the window may have been destroyed.  Keep going

+	 * with no cliprects.

+	 */

+        pdp->pStamp = &pdp->lastStamp; /* prevent endless loop */

+	pdp->numClipRects = 0;

+	pdp->pClipRects = NULL;

+	pdp->numBackClipRects = 0;

+	pdp->pBackClipRects = NULL;

+    }

+    else

+       pdp->pStamp = &(psp->pSAREA->drawableTable[pdp->index].stamp);

+

+    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);

+}

+

+/*@}*/

+

+/*****************************************************************/

+/** \name GLX callbacks                                          */

+/*****************************************************************/

+/*@{*/

+

+static void driReportDamage(__DRIdrawable *pdp,

+			    struct drm_clip_rect *pClipRects, int numClipRects)

+{

+    __DRIscreen *psp = pdp->driScreenPriv;

+

+    /* Check that we actually have the new damage report method */

+    if (psp->damage) {

+	/* Report the damage.  Currently, all our drivers draw

+	 * directly to the front buffer, so we report the damage there

+	 * rather than to the backing storein (if any).

+	 */

+	(*psp->damage->reportDamage)(pdp,

+				     pdp->x, pdp->y,

+				     pClipRects, numClipRects,

+				     GL_TRUE, pdp->loaderPrivate);

+    }

+}

+

+

+/**

+ * Swap buffers.

+ *

+ * \param drawablePrivate opaque pointer to the per-drawable private info.

+ * 

+ * \internal

+ * This function calls __DRIdrawable::swapBuffers.

+ * 

+ * Is called directly from glXSwapBuffers().

+ */

+static void driSwapBuffers(__DRIdrawable *dPriv)

+{

+    __DRIscreen *psp = dPriv->driScreenPriv;

+    drm_clip_rect_t *rects;

+    int i;

+

+    psp->DriverAPI.SwapBuffers(dPriv);

+

+    if (!dPriv->numClipRects)

+        return;

+

+    rects = malloc(sizeof(*rects) * dPriv->numClipRects);

+

+    if (!rects)

+        return;

+

+    for (i = 0; i < dPriv->numClipRects; i++) {

+        rects[i].x1 = dPriv->pClipRects[i].x1 - dPriv->x;

+        rects[i].y1 = dPriv->pClipRects[i].y1 - dPriv->y;

+        rects[i].x2 = dPriv->pClipRects[i].x2 - dPriv->x;

+        rects[i].y2 = dPriv->pClipRects[i].y2 - dPriv->y;

+    }

+

+    driReportDamage(dPriv, rects, dPriv->numClipRects);

+    free(rects);

+}

+

+static int driDrawableGetMSC( __DRIscreen *sPriv, __DRIdrawable *dPriv,

+			      int64_t *msc )

+{

+    return sPriv->DriverAPI.GetDrawableMSC(sPriv, dPriv, msc);

+}

+

+

+static int driWaitForMSC(__DRIdrawable *dPriv, int64_t target_msc,

+			 int64_t divisor, int64_t remainder,

+			 int64_t * msc, int64_t * sbc)

+{

+    __DRIswapInfo  sInfo;

+    int  status;

+

+    status = dPriv->driScreenPriv->DriverAPI.WaitForMSC( dPriv, target_msc,

+                                                         divisor, remainder,

+                                                         msc );

+

+    /* GetSwapInfo() may not be provided by the driver if GLX_SGI_video_sync

+     * is supported but GLX_OML_sync_control is not.  Therefore, don't return

+     * an error value if GetSwapInfo() is not implemented.

+    */

+    if ( status == 0

+         && dPriv->driScreenPriv->DriverAPI.GetSwapInfo ) {

+        status = dPriv->driScreenPriv->DriverAPI.GetSwapInfo( dPriv, & sInfo );

+        *sbc = sInfo.swap_count;

+    }

+

+    return status;

+}

+

+

+const __DRImediaStreamCounterExtension driMediaStreamCounterExtension = {

+    { __DRI_MEDIA_STREAM_COUNTER, __DRI_MEDIA_STREAM_COUNTER_VERSION },

+    driWaitForMSC,

+    driDrawableGetMSC,

+};

+

+

+static void driCopySubBuffer(__DRIdrawable *dPriv,

+			      int x, int y, int w, int h)

+{

+    drm_clip_rect_t rect;

+

+    rect.x1 = x;

+    rect.y1 = dPriv->h - y - h;

+    rect.x2 = x + w;

+    rect.y2 = rect.y1 + h;

+    driReportDamage(dPriv, &rect, 1);

+

+    dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);

+}

+

+const __DRIcopySubBufferExtension driCopySubBufferExtension = {

+    { __DRI_COPY_SUB_BUFFER, __DRI_COPY_SUB_BUFFER_VERSION },

+    driCopySubBuffer

+};

+

+static void driSetSwapInterval(__DRIdrawable *dPriv, unsigned int interval)

+{

+    dPriv->swap_interval = interval;

+}

+

+static unsigned int driGetSwapInterval(__DRIdrawable *dPriv)

+{

+    return dPriv->swap_interval;

+}

+

+const __DRIswapControlExtension driSwapControlExtension = {

+    { __DRI_SWAP_CONTROL, __DRI_SWAP_CONTROL_VERSION },

+    driSetSwapInterval,

+    driGetSwapInterval

+};

+

+

+/**

+ * This is called via __DRIscreenRec's createNewDrawable pointer.

+ */

+static __DRIdrawable *

+driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config,

+		     drm_drawable_t hwDrawable, int renderType,

+		     const int *attrs, void *data)

+{

+    __DRIdrawable *pdp;

+

+    /* Since pbuffers are not yet supported, no drawable attributes are

+     * supported either.

+     */

+    (void) attrs;

+

+    pdp = malloc(sizeof *pdp);

+    if (!pdp) {

+	return NULL;

+    }

+

+    pdp->driContextPriv = NULL;

+    pdp->loaderPrivate = data;

+    pdp->hHWDrawable = hwDrawable;

+    pdp->refcount = 1;

+    pdp->pStamp = NULL;

+    pdp->lastStamp = 0;

+    pdp->index = 0;

+    pdp->x = 0;

+    pdp->y = 0;

+    pdp->w = 0;

+    pdp->h = 0;

+    pdp->numClipRects = 0;

+    pdp->numBackClipRects = 0;

+    pdp->pClipRects = NULL;

+    pdp->pBackClipRects = NULL;

+    pdp->vblSeq = 0;

+    pdp->vblFlags = 0;

+

+    pdp->driScreenPriv = psp;

+

+    if (!(*psp->DriverAPI.CreateBuffer)(psp, pdp, &config->modes, 0)) {

+       free(pdp);

+       return NULL;

+    }

+

+    pdp->msc_base = 0;

+

+    /* This special default value is replaced with the configured

+     * default value when the drawable is first bound to a direct

+     * rendering context. 

+     */

+    pdp->swap_interval = (unsigned)-1;

+

+    return pdp;

+}

+

+

+static __DRIdrawable *

+dri2CreateNewDrawable(__DRIscreen *screen,

+		      const __DRIconfig *config,

+		      void *loaderPrivate)

+{

+    __DRIdrawable *pdraw;

+

+    pdraw = driCreateNewDrawable(screen, config, 0, 0, NULL, loaderPrivate);

+    if (!pdraw)

+    	return NULL;

+

+    pdraw->pClipRects = &pdraw->dri2.clipRect;

+    pdraw->pBackClipRects = &pdraw->dri2.clipRect;

+

+    pdraw->pStamp = &pdraw->dri2.stamp;

+    *pdraw->pStamp = pdraw->lastStamp + 1;

+

+    return pdraw;

+}

+

+static __DRIbuffer *

+dri2AllocateBuffer(__DRIscreen *screen,

+		   unsigned int attachment, unsigned int format,

+		   int width, int height)

+{

+    return (*screen->DriverAPI.AllocateBuffer)(screen, attachment, format,

+					       width, height);

+}

+

+static void

+dri2ReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)

+{

+   (*screen->DriverAPI.ReleaseBuffer)(screen, buffer);

+}

+

+

+static int

+dri2ConfigQueryb(__DRIscreen *screen, const char *var, GLboolean *val)

+{

+   if (!driCheckOption(&screen->optionCache, var, DRI_BOOL))

+      return -1;

+

+   *val = driQueryOptionb(&screen->optionCache, var);

+

+   return 0;

+}

+

+static int

+dri2ConfigQueryi(__DRIscreen *screen, const char *var, GLint *val)

+{

+   if (!driCheckOption(&screen->optionCache, var, DRI_INT) &&

+       !driCheckOption(&screen->optionCache, var, DRI_ENUM))

+      return -1;

+

+    *val = driQueryOptioni(&screen->optionCache, var);

+

+    return 0;

+}

+

+static int

+dri2ConfigQueryf(__DRIscreen *screen, const char *var, GLfloat *val)

+{

+   if (!driCheckOption(&screen->optionCache, var, DRI_FLOAT))

+      return -1;

+

+    *val = driQueryOptionf(&screen->optionCache, var);

+

+    return 0;

+}

+

+

+static void dri_get_drawable(__DRIdrawable *pdp)

+{

+    pdp->refcount++;

+}

+	

+static void dri_put_drawable(__DRIdrawable *pdp)

+{

+    __DRIscreen *psp;

+

+    if (pdp) {

+	pdp->refcount--;

+	if (pdp->refcount)

+	    return;

+

+	psp = pdp->driScreenPriv;

+        (*psp->DriverAPI.DestroyBuffer)(pdp);

+	if (pdp->pClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {

+	    free(pdp->pClipRects);

+	    pdp->pClipRects = NULL;

+	}

+	if (pdp->pBackClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {

+	    free(pdp->pBackClipRects);

+	    pdp->pBackClipRects = NULL;

+	}

+	free(pdp);

+    }

+}

+

+static void

+driDestroyDrawable(__DRIdrawable *pdp)

+{

+    dri_put_drawable(pdp);

+}

+

+/*@}*/

+

+

+/*****************************************************************/

+/** \name Context handling functions                             */

+/*****************************************************************/

+/*@{*/

+

+/**

+ * Destroy the per-context private information.

+ * 

+ * \internal

+ * This function calls __DriverAPIRec::DestroyContext on \p contextPrivate, calls

+ * drmDestroyContext(), and finally frees \p contextPrivate.

+ */

+static void

+driDestroyContext(__DRIcontext *pcp)

+{

+    if (pcp) {

+	(*pcp->driScreenPriv->DriverAPI.DestroyContext)(pcp);

+	free(pcp);

+    }

+}

+

+

+/**

+ * Create the per-drawable private driver information.

+ * 

+ * \param render_type   Type of rendering target.  \c GLX_RGBA is the only

+ *                      type likely to ever be supported for direct-rendering.

+ * \param shared        Context with which to share textures, etc. or NULL

+ *

+ * \returns An opaque pointer to the per-context private information on

+ *          success, or \c NULL on failure.

+ * 

+ * \internal

+ * This function allocates and fills a __DRIcontextRec structure.  It

+ * performs some device independent initialization and passes all the

+ * relevent information to __DriverAPIRec::CreateContext to create the

+ * context.

+ *

+ */

+static __DRIcontext *

+driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,

+		    int render_type, __DRIcontext *shared, 

+		    drm_context_t hwContext, void *data)

+{

+    __DRIcontext *pcp;

+    void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;

+

+    pcp = malloc(sizeof *pcp);

+    if (!pcp)

+	return NULL;

+

+    pcp->driScreenPriv = psp;

+    pcp->driDrawablePriv = NULL;

+    pcp->loaderPrivate = data;

+    

+    pcp->dri2.draw_stamp = 0;

+    pcp->dri2.read_stamp = 0;

+

+    pcp->hHWContext = hwContext;

+

+    if ( !(*psp->DriverAPI.CreateContext)(API_OPENGL,

+					  &config->modes, pcp, shareCtx) ) {

+        free(pcp);

+        return NULL;

+    }

+

+    return pcp;

+}

+

+static unsigned int

+dri2GetAPIMask(__DRIscreen *screen)

+{

+    return screen->api_mask;

+}

+

+static __DRIcontext *

+dri2CreateNewContextForAPI(__DRIscreen *screen, int api,

+			   const __DRIconfig *config,

+			   __DRIcontext *shared, void *data)

+{

+    __DRIcontext *context;

+    const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;

+    void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;

+    gl_api mesa_api;

+

+    if (!(screen->api_mask & (1 << api)))

+	return NULL;

+

+    switch (api) {

+    case __DRI_API_OPENGL:

+	    mesa_api = API_OPENGL;

+	    break;

+    case __DRI_API_GLES:

+	    mesa_api = API_OPENGLES;

+	    break;

+    case __DRI_API_GLES2:

+	    mesa_api = API_OPENGLES2;

+	    break;

+    default:

+	    return NULL;

+    }

+

+    context = malloc(sizeof *context);

+    if (!context)

+	return NULL;

+

+    context->driScreenPriv = screen;

+    context->driDrawablePriv = NULL;

+    context->loaderPrivate = data;

+    

+    if (!(*screen->DriverAPI.CreateContext)(mesa_api, modes,

+					    context, shareCtx) ) {

+        free(context);

+        return NULL;

+    }

+

+    return context;

+}

+

+

+static __DRIcontext *

+dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,

+		      __DRIcontext *shared, void *data)

+{

+   return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL,

+				     config, shared, data);

+}

+

+static int

+driCopyContext(__DRIcontext *dest, __DRIcontext *src, unsigned long mask)

+{

+    return GL_FALSE;

+}

+

+/*@}*/

+

+

+/*****************************************************************/

+/** \name Screen handling functions                              */

+/*****************************************************************/

+/*@{*/

+

+/**

+ * Destroy the per-screen private information.

+ * 

+ * \internal

+ * This function calls __DriverAPIRec::DestroyScreen on \p screenPrivate, calls

+ * drmClose(), and finally frees \p screenPrivate.

+ */

+static void driDestroyScreen(__DRIscreen *psp)

+{

+    if (psp) {

+	/* No interaction with the X-server is possible at this point.  This

+	 * routine is called after XCloseDisplay, so there is no protocol

+	 * stream open to the X-server anymore.

+	 */

+

+       _mesa_destroy_shader_compiler();

+

+	if (psp->DriverAPI.DestroyScreen)

+	    (*psp->DriverAPI.DestroyScreen)(psp);

+

+	if (!psp->dri2.enabled) {

+	   (void)drmUnmap((drmAddress)psp->pSAREA, SAREA_MAX);

+	   (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);

+	   (void)drmCloseOnce(psp->fd);

+	} else {

+	   driDestroyOptionCache(&psp->optionCache);

+	   driDestroyOptionInfo(&psp->optionInfo);

+	}

+

+	free(psp);

+    }

+}

+

+static void

+setupLoaderExtensions(__DRIscreen *psp,

+		      const __DRIextension **extensions)

+{

+    int i;

+

+    for (i = 0; extensions[i]; i++) {

+	if (strcmp(extensions[i]->name, __DRI_GET_DRAWABLE_INFO) == 0)

+	    psp->getDrawableInfo = (__DRIgetDrawableInfoExtension *) extensions[i];

+	if (strcmp(extensions[i]->name, __DRI_DAMAGE) == 0)

+	    psp->damage = (__DRIdamageExtension *) extensions[i];

+	if (strcmp(extensions[i]->name, __DRI_SYSTEM_TIME) == 0)

+	    psp->systemTime = (__DRIsystemTimeExtension *) extensions[i];

+	if (strcmp(extensions[i]->name, __DRI_DRI2_LOADER) == 0)

+	    psp->dri2.loader = (__DRIdri2LoaderExtension *) extensions[i];

+	if (strcmp(extensions[i]->name, __DRI_IMAGE_LOOKUP) == 0)

+	    psp->dri2.image = (__DRIimageLookupExtension *) extensions[i];

+	if (strcmp(extensions[i]->name, __DRI_USE_INVALIDATE) == 0)

+	    psp->dri2.useInvalidate = (__DRIuseInvalidateExtension *) extensions[i];

+    }

+}

+

+/**

+ * This is the bootstrap function for the driver.  libGL supplies all of the

+ * requisite information about the system, and the driver initializes itself.

+ * This routine also fills in the linked list pointed to by \c driver_modes

+ * with the \c struct gl_config that the driver can support for windows or

+ * pbuffers.

+ *

+ * For legacy DRI.

+ * 

+ * \param scrn  Index of the screen

+ * \param ddx_version Version of the 2D DDX.  This may not be meaningful for

+ *                    all drivers.

+ * \param dri_version Version of the "server-side" DRI.

+ * \param drm_version Version of the kernel DRM.

+ * \param frame_buffer Data describing the location and layout of the

+ *                     framebuffer.

+ * \param pSAREA       Pointer to the SAREA.

+ * \param fd           Device handle for the DRM.

+ * \param extensions   ??

+ * \param driver_modes  Returns modes suppoted by the driver

+ * \param loaderPrivate  ??

+ * 

+ * \note There is no need to check the minimum API version in this

+ * function.  Since the name of this function is versioned, it is

+ * impossible for a loader that is too old to even load this driver.

+ */

+static __DRIscreen *

+driCreateNewScreen(int scrn,

+		   const __DRIversion *ddx_version,

+		   const __DRIversion *dri_version,

+		   const __DRIversion *drm_version,

+		   const __DRIframebuffer *frame_buffer,

+		   drmAddress pSAREA, int fd, 

+		   const __DRIextension **extensions,

+		   const __DRIconfig ***driver_modes,

+		   void *loaderPrivate)

+{

+    static const __DRIextension *emptyExtensionList[] = { NULL };

+    __DRIscreen *psp;

+

+    if (driDriverAPI.InitScreen == NULL)

+	return NULL;

+

+    psp = calloc(1, sizeof *psp);

+    if (!psp)

+	return NULL;

+

+    setupLoaderExtensions(psp, extensions);

+

+    /*

+    ** NOT_DONE: This is used by the X server to detect when the client

+    ** has died while holding the drawable lock.  The client sets the

+    ** drawable lock to this value.

+    */

+    psp->drawLockID = 1;

+

+    psp->drm_version = *drm_version;

+    psp->ddx_version = *ddx_version;

+    psp->dri_version = *dri_version;

+

+    psp->pSAREA = pSAREA;

+    psp->lock = (drmLock *) &psp->pSAREA->lock;

+

+    psp->pFB = frame_buffer->base;

+    psp->fbSize = frame_buffer->size;

+    psp->fbStride = frame_buffer->stride;

+    psp->fbWidth = frame_buffer->width;

+    psp->fbHeight = frame_buffer->height;

+    psp->devPrivSize = frame_buffer->dev_priv_size;

+    psp->pDevPriv = frame_buffer->dev_priv;

+    psp->fbBPP = psp->fbStride * 8 / frame_buffer->width;

+

+    psp->extensions = emptyExtensionList;

+    psp->fd = fd;

+    psp->myNum = scrn;

+    psp->dri2.enabled = GL_FALSE;

+

+    psp->DriverAPI = driDriverAPI;

+    psp->api_mask = (1 << __DRI_API_OPENGL);

+

+    *driver_modes = driDriverAPI.InitScreen(psp);

+    if (*driver_modes == NULL) {

+	free(psp);

+	return NULL;

+    }

+

+    return psp;

+}

+

+/**

+ * DRI2

+ */

+static __DRIscreen *

+dri2CreateNewScreen(int scrn, int fd,

+		    const __DRIextension **extensions,

+		    const __DRIconfig ***driver_configs, void *data)

+{

+    static const __DRIextension *emptyExtensionList[] = { NULL };

+    __DRIscreen *psp;

+    drmVersionPtr version;

+

+    if (driDriverAPI.InitScreen2 == NULL)

+        return NULL;

+

+    psp = calloc(1, sizeof(*psp));

+    if (!psp)

+	return NULL;

+

+    setupLoaderExtensions(psp, extensions);

+

+    version = drmGetVersion(fd);

+    if (version) {

+	psp->drm_version.major = version->version_major;

+	psp->drm_version.minor = version->version_minor;

+	psp->drm_version.patch = version->version_patchlevel;

+	drmFreeVersion(version);

+    }

+

+    psp->extensions = emptyExtensionList;

+    psp->fd = fd;

+    psp->myNum = scrn;

+    psp->dri2.enabled = GL_TRUE;

+

+    psp->DriverAPI = driDriverAPI;

+    psp->api_mask = (1 << __DRI_API_OPENGL);

+    *driver_configs = driDriverAPI.InitScreen2(psp);

+    if (*driver_configs == NULL) {

+	free(psp);

+	return NULL;

+    }

+

+    psp->DriverAPI = driDriverAPI;

+    psp->loaderPrivate = data;

+

+    driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions,

+		       __dri2NConfigOptions);

+    driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum,

+			"dri2");

+

+    return psp;

+}

+

+static const __DRIextension **driGetExtensions(__DRIscreen *psp)

+{

+    return psp->extensions;

+}

+

+/** Core interface */

+const __DRIcoreExtension driCoreExtension = {

+    { __DRI_CORE, __DRI_CORE_VERSION },

+    NULL,

+    driDestroyScreen,

+    driGetExtensions,

+    driGetConfigAttrib,

+    driIndexConfigAttrib,

+    NULL,

+    driDestroyDrawable,

+    driSwapBuffers,

+    NULL,

+    driCopyContext,

+    driDestroyContext,

+    driBindContext,

+    driUnbindContext

+};

+

+/** Legacy DRI interface */

+const __DRIlegacyExtension driLegacyExtension = {

+    { __DRI_LEGACY, __DRI_LEGACY_VERSION },

+    driCreateNewScreen,

+    driCreateNewDrawable,

+    driCreateNewContext,

+};

+

+/** DRI2 interface */

+const __DRIdri2Extension driDRI2Extension = {

+    { __DRI_DRI2, __DRI_DRI2_VERSION },

+    dri2CreateNewScreen,

+    dri2CreateNewDrawable,

+    dri2CreateNewContext,

+    dri2GetAPIMask,

+    dri2CreateNewContextForAPI,

+    dri2AllocateBuffer,

+    dri2ReleaseBuffer

+};

+

+const __DRI2configQueryExtension dri2ConfigQueryExtension = {

+   { __DRI2_CONFIG_QUERY, __DRI2_CONFIG_QUERY_VERSION },

+   dri2ConfigQueryb,

+   dri2ConfigQueryi,

+   dri2ConfigQueryf,

+};

+

+/**

+ * Calculate amount of swap interval used between GLX buffer swaps.

+ * 

+ * The usage value, on the range [0,max], is the fraction of total swap

+ * interval time used between GLX buffer swaps is calculated.

+ *

+ *            \f$p = t_d / (i * t_r)\f$

+ * 

+ * Where \f$t_d\f$ is the time since the last GLX buffer swap, \f$i\f$ is the

+ * swap interval (as set by \c glXSwapIntervalSGI), and \f$t_r\f$ time

+ * required for a single vertical refresh period (as returned by \c

+ * glXGetMscRateOML).

+ * 

+ * See the documentation for the GLX_MESA_swap_frame_usage extension for more

+ * details.

+ *

+ * \param   dPriv  Pointer to the private drawable structure.

+ * \return  If less than a single swap interval time period was required

+ *          between GLX buffer swaps, a number greater than 0 and less than

+ *          1.0 is returned.  If exactly one swap interval time period is

+ *          required, 1.0 is returned, and if more than one is required then

+ *          a number greater than 1.0 will be returned.

+ *

+ * \sa glXSwapIntervalSGI glXGetMscRateOML

+ * 

+ * \todo Instead of caching the \c glXGetMscRateOML function pointer, would it

+ *       be possible to cache the sync rate?

+ */

+float

+driCalculateSwapUsage( __DRIdrawable *dPriv, int64_t last_swap_ust,

+		       int64_t current_ust )

+{

+   int32_t   n;

+   int32_t   d;

+   int       interval;

+   float     usage = 1.0;

+   __DRIscreen *psp = dPriv->driScreenPriv;

+

+   if ( (*psp->systemTime->getMSCRate)(dPriv, &n, &d, dPriv->loaderPrivate) ) {

+      interval = (dPriv->swap_interval != 0) ? dPriv->swap_interval : 1;

+

+

+      /* We want to calculate

+       * (current_UST - last_swap_UST) / (interval * us_per_refresh).  We get

+       * current_UST by calling __glXGetUST.  last_swap_UST is stored in

+       * dPriv->swap_ust.  interval has already been calculated.

+       *

+       * The only tricky part is us_per_refresh.  us_per_refresh is

+       * 1000000 / MSC_rate.  We know the MSC_rate is n / d.  We can flip it

+       * around and say us_per_refresh = 1000000 * d / n.  Since this goes in

+       * the denominator of the final calculation, we calculate

+       * (interval * 1000000 * d) and move n into the numerator.

+       */

+

+      usage = (current_ust - last_swap_ust);

+      usage *= n;

+      usage /= (interval * d);

+      usage /= 1000000.0;

+   }

+   

+   return usage;

+}

+

+void

+dri2InvalidateDrawable(__DRIdrawable *drawable)

+{

+    drawable->dri2.stamp++;

+}

+

+/*@}*/

diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.h b/mesalib/src/mesa/drivers/dri/common/dri_util.h
index 3d3d5c9cd..8d2a38524 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.h
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.h
@@ -1,563 +1,563 @@
-/*
- * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file dri_util.h
- * DRI utility functions definitions.
- *
- * This module acts as glue between GLX and the actual hardware driver.  A DRI
- * driver doesn't really \e have to use any of this - it's optional.  But, some
- * useful stuff is done here that otherwise would have to be duplicated in most
- * drivers.
- * 
- * Basically, these utility functions take care of some of the dirty details of
- * screen initialization, context creation, context binding, DRM setup, etc.
- *
- * These functions are compiled into each DRI driver so libGL.so knows nothing
- * about them.
- *
- * \sa dri_util.c.
- * 
- * \author Kevin E. Martin <kevin@precisioninsight.com>
- * \author Brian Paul <brian@precisioninsight.com>
- */
-
-#ifndef _DRI_UTIL_H_
-#define _DRI_UTIL_H_
-
-#include <GL/gl.h>
-#include <drm.h>
-#include <drm_sarea.h>
-#include <xf86drm.h>
-#include "xmlconfig.h"
-#include "main/glheader.h"
-#include "main/mtypes.h"
-#include "GL/internal/dri_interface.h"
-
-#define GLX_BAD_CONTEXT                    5
-
-typedef struct __DRIswapInfoRec        __DRIswapInfo;
-
-/**
- * Extensions.
- */
-extern const __DRIlegacyExtension driLegacyExtension;
-extern const __DRIcoreExtension driCoreExtension;
-extern const __DRIdri2Extension driDRI2Extension;
-extern const __DRIextension driReadDrawableExtension;
-extern const __DRIcopySubBufferExtension driCopySubBufferExtension;
-extern const __DRIswapControlExtension driSwapControlExtension;
-extern const __DRImediaStreamCounterExtension driMediaStreamCounterExtension;
-extern const __DRI2configQueryExtension dri2ConfigQueryExtension;
-
-/**
- * Used by DRI_VALIDATE_DRAWABLE_INFO
- */
-#define DRI_VALIDATE_DRAWABLE_INFO_ONCE(pDrawPriv)              \
-    do {                                                        \
-	if (*(pDrawPriv->pStamp) != pDrawPriv->lastStamp) {     \
-	    __driUtilUpdateDrawableInfo(pDrawPriv);             \
-	}                                                       \
-    } while (0)
-
-
-/**
- * Utility macro to validate the drawable information.
- *
- * See __DRIdrawable::pStamp and __DRIdrawable::lastStamp.
- */
-#define DRI_VALIDATE_DRAWABLE_INFO(psp, pdp)                            \
-do {                                                                    \
-    while (*(pdp->pStamp) != pdp->lastStamp) {                          \
-        register unsigned int hwContext = psp->pSAREA->lock.lock &      \
-		     ~(DRM_LOCK_HELD | DRM_LOCK_CONT);                  \
-	DRM_UNLOCK(psp->fd, &psp->pSAREA->lock, hwContext);             \
-                                                                        \
-	DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);     \
-	DRI_VALIDATE_DRAWABLE_INFO_ONCE(pdp);                           \
-	DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);   \
-                                                                        \
-	DRM_LIGHT_LOCK(psp->fd, &psp->pSAREA->lock, hwContext);         \
-    }                                                                   \
-} while (0)
-
-/**
- * Same as above, but for two drawables simultaneously.
- *
- */
-
-#define DRI_VALIDATE_TWO_DRAWABLES_INFO(psp, pdp, prp)			\
-do {								\
-    while (*((pdp)->pStamp) != (pdp)->lastStamp ||			\
-	   *((prp)->pStamp) != (prp)->lastStamp) {			\
-        register unsigned int hwContext = (psp)->pSAREA->lock.lock &	\
-	    ~(DRM_LOCK_HELD | DRM_LOCK_CONT);				\
-	DRM_UNLOCK((psp)->fd, &(psp)->pSAREA->lock, hwContext);		\
-									\
-	DRM_SPINLOCK(&(psp)->pSAREA->drawable_lock, (psp)->drawLockID);	\
-	DRI_VALIDATE_DRAWABLE_INFO_ONCE(pdp);                           \
-	DRI_VALIDATE_DRAWABLE_INFO_ONCE(prp);				\
-	DRM_SPINUNLOCK(&(psp)->pSAREA->drawable_lock, (psp)->drawLockID); \
-									\
-	DRM_LIGHT_LOCK((psp)->fd, &(psp)->pSAREA->lock, hwContext);	\
-    }                                                                   \
-} while (0)
-
-
-/**
- * Driver callback functions.
- *
- * Each DRI driver must have one of these structures with all the pointers set
- * to appropriate functions within the driver.
- * 
- * When glXCreateContext() is called, for example, it'll call a helper function
- * dri_util.c which in turn will jump through the \a CreateContext pointer in
- * this structure.
- */
-struct __DriverAPIRec {
-    const __DRIconfig **(*InitScreen) (__DRIscreen * priv);
-
-    /**
-     * Screen destruction callback
-     */
-    void (*DestroyScreen)(__DRIscreen *driScrnPriv);
-
-    /**
-     * Context creation callback
-     */	    	    
-    GLboolean (*CreateContext)(gl_api api,
-			       const struct gl_config *glVis,
-			       __DRIcontext *driContextPriv,
-                               void *sharedContextPrivate);
-
-    /**
-     * Context destruction callback
-     */
-    void (*DestroyContext)(__DRIcontext *driContextPriv);
-
-    /**
-     * Buffer (drawable) creation callback
-     */
-    GLboolean (*CreateBuffer)(__DRIscreen *driScrnPriv,
-                              __DRIdrawable *driDrawPriv,
-                              const struct gl_config *glVis,
-                              GLboolean pixmapBuffer);
-    
-    /**
-     * Buffer (drawable) destruction callback
-     */
-    void (*DestroyBuffer)(__DRIdrawable *driDrawPriv);
-
-    /**
-     * Buffer swapping callback 
-     */
-    void (*SwapBuffers)(__DRIdrawable *driDrawPriv);
-
-    /**
-     * Context activation callback
-     */
-    GLboolean (*MakeCurrent)(__DRIcontext *driContextPriv,
-                             __DRIdrawable *driDrawPriv,
-                             __DRIdrawable *driReadPriv);
-
-    /**
-     * Context unbinding callback
-     */
-    GLboolean (*UnbindContext)(__DRIcontext *driContextPriv);
-  
-    /**
-     * Retrieves statistics about buffer swap operations.  Required if
-     * GLX_OML_sync_control or GLX_MESA_swap_frame_usage is supported.
-     */
-    int (*GetSwapInfo)( __DRIdrawable *dPriv, __DRIswapInfo * sInfo );
-
-
-    /**
-     * These are required if GLX_OML_sync_control is supported.
-     */
-    /*@{*/
-    int (*WaitForMSC)( __DRIdrawable *priv, int64_t target_msc, 
-		       int64_t divisor, int64_t remainder,
-		       int64_t * msc );
-    int (*WaitForSBC)( __DRIdrawable *priv, int64_t target_sbc,
-		       int64_t * msc, int64_t * sbc );
-
-    int64_t (*SwapBuffersMSC)( __DRIdrawable *priv, int64_t target_msc,
-			       int64_t divisor, int64_t remainder );
-    /*@}*/
-    void (*CopySubBuffer)(__DRIdrawable *driDrawPriv,
-			  int x, int y, int w, int h);
-
-    /**
-     * New version of GetMSC so we can pass drawable data to the low
-     * level DRM driver (e.g. pipe info).  Required if
-     * GLX_SGI_video_sync or GLX_OML_sync_control is supported.
-     */
-    int (*GetDrawableMSC) ( __DRIscreen * priv,
-			    __DRIdrawable *drawablePrivate,
-			    int64_t *count);
-
-
-
-    /* DRI2 Entry point */
-    const __DRIconfig **(*InitScreen2) (__DRIscreen * priv);
-
-    __DRIbuffer *(*AllocateBuffer) (__DRIscreen *screenPrivate,
-				    unsigned int attachment,
-				    unsigned int format,
-				    int width, int height);
-    void (*ReleaseBuffer) (__DRIscreen *screenPrivate, __DRIbuffer *buffer);
-};
-
-extern const struct __DriverAPIRec driDriverAPI;
-
-
-struct __DRIswapInfoRec {
-    /** 
-     * Number of swapBuffers operations that have been *completed*. 
-     */
-    uint64_t swap_count;
-
-    /**
-     * Unadjusted system time of the last buffer swap.  This is the time
-     * when the swap completed, not the time when swapBuffers was called.
-     */
-    int64_t   swap_ust;
-
-    /**
-     * Number of swap operations that occurred after the swap deadline.  That
-     * is if a swap happens more than swap_interval frames after the previous
-     * swap, it has missed its deadline.  If swap_interval is 0, then the
-     * swap deadline is 1 frame after the previous swap.
-     */
-    uint64_t swap_missed_count;
-
-    /**
-     * Amount of time used by the last swap that missed its deadline.  This
-     * is calculated as (__glXGetUST() - swap_ust) / (swap_interval * 
-     * time_for_single_vrefresh)).  If the actual value of swap_interval is
-     * 0, then 1 is used instead.  If swap_missed_count is non-zero, this
-     * should be greater-than 1.0.
-     */
-    float     swap_missed_usage;
-};
-
-
-/**
- * Per-drawable private DRI driver information.
- */
-struct __DRIdrawableRec {
-    /**
-     * Kernel drawable handle
-     */
-    drm_drawable_t hHWDrawable;
-
-    /**
-     * Driver's private drawable information.  
-     *
-     * This structure is opaque.
-     */
-    void *driverPrivate;
-
-    /**
-     * Private data from the loader.  We just hold on to it and pass
-     * it back when calling into loader provided functions.
-     */
-    void *loaderPrivate;
-
-    /**
-     * Reference count for number of context's currently bound to this
-     * drawable.  
-     *
-     * Once it reaches zero, the drawable can be destroyed.
-     *
-     * \note This behavior will change with GLX 1.3.
-     */
-    int refcount;
-
-    /**
-     * Index of this drawable information in the SAREA.
-     */
-    unsigned int index;
-
-    /**
-     * Pointer to the "drawable has changed ID" stamp in the SAREA (or
-     * to dri2.stamp if DRI2 is being used).
-     */
-    unsigned int *pStamp;
-
-    /**
-     * Last value of the stamp.
-     *
-     * If this differs from the value stored at __DRIdrawable::pStamp,
-     * then the drawable information has been modified by the X server, and the
-     * drawable information (below) should be retrieved from the X server.
-     */
-    unsigned int lastStamp;
-
-    /**
-     * \name Drawable 
-     *
-     * Drawable information used in software fallbacks.
-     */
-    /*@{*/
-    int x;
-    int y;
-    int w;
-    int h;
-    int numClipRects;
-    drm_clip_rect_t *pClipRects;
-    /*@}*/
-
-    /**
-     * \name Back and depthbuffer
-     *
-     * Information about the back and depthbuffer where different from above.
-     */
-    /*@{*/
-    int backX;
-    int backY;
-    int backClipRectType;
-    int numBackClipRects;
-    drm_clip_rect_t *pBackClipRects;
-    /*@}*/
-
-    /**
-     * \name Vertical blank tracking information
-     * Used for waiting on vertical blank events.
-     */
-    /*@{*/
-    unsigned int vblSeq;
-    unsigned int vblFlags;
-    /*@}*/
-
-    /**
-     * \name Monotonic MSC tracking
-     *
-     * Low level driver is responsible for updating msc_base and
-     * vblSeq values so that higher level code can calculate
-     * a new msc value or msc target for a WaitMSC call.  The new value
-     * will be:
-     *   msc = msc_base + get_vblank_count() - vblank_base;
-     *
-     * And for waiting on a value, core code will use:
-     *   actual_target = target_msc - msc_base + vblank_base;
-     */
-    /*@{*/
-    int64_t vblank_base;
-    int64_t msc_base;
-    /*@}*/
-
-    /**
-     * Pointer to context to which this drawable is currently bound.
-     */
-    __DRIcontext *driContextPriv;
-
-    /**
-     * Pointer to screen on which this drawable was created.
-     */
-    __DRIscreen *driScreenPriv;
-
-    /**
-     * Controls swap interval as used by GLX_SGI_swap_control and
-     * GLX_MESA_swap_control.
-     */
-    unsigned int swap_interval;
-
-    struct {
-	unsigned int stamp;
-	drm_clip_rect_t clipRect;
-    } dri2;
-};
-
-/**
- * Per-context private driver information.
- */
-struct __DRIcontextRec {
-    /**
-     * Kernel context handle used to access the device lock.
-     */
-    drm_context_t hHWContext;
-
-    /**
-     * Device driver's private context data.  This structure is opaque.
-     */
-    void *driverPrivate;
-
-    /**
-     * Pointer to drawable currently bound to this context for drawing.
-     */
-    __DRIdrawable *driDrawablePriv;
-
-    /**
-     * Pointer to drawable currently bound to this context for reading.
-     */
-    __DRIdrawable *driReadablePriv;
-
-    /**
-     * Pointer to screen on which this context was created.
-     */
-    __DRIscreen *driScreenPriv;
-
-    /**
-     * The loaders's private context data.  This structure is opaque.
-     */
-    void *loaderPrivate;
-
-    struct {
-	int draw_stamp;
-	int read_stamp;
-    } dri2;
-};
-
-/**
- * Per-screen private driver information.
- */
-struct __DRIscreenRec {
-    /**
-     * Current screen's number
-     */
-    int myNum;
-
-    /**
-     * Callback functions into the hardware-specific DRI driver code.
-     */
-    struct __DriverAPIRec DriverAPI;
-
-    const __DRIextension **extensions;
-    /**
-     * DDX / 2D driver version information.
-     */
-    __DRIversion ddx_version;
-
-    /**
-     * DRI X extension version information.
-     */
-    __DRIversion dri_version;
-
-    /**
-     * DRM (kernel module) version information.
-     */
-    __DRIversion drm_version;
-
-    /**
-     * ID used when the client sets the drawable lock.
-     *
-     * The X server uses this value to detect if the client has died while
-     * holding the drawable lock.
-     */
-    int drawLockID;
-
-    /**
-     * File descriptor returned when the kernel device driver is opened.
-     * 
-     * Used to:
-     *   - authenticate client to kernel
-     *   - map the frame buffer, SAREA, etc.
-     *   - close the kernel device driver
-     */
-    int fd;
-
-    /**
-     * SAREA pointer 
-     *
-     * Used to access:
-     *   - the device lock
-     *   - the device-independent per-drawable and per-context(?) information
-     */
-    drm_sarea_t *pSAREA;
-
-    /**
-     * \name Direct frame buffer access information 
-     * Used for software fallbacks.
-     */
-    /*@{*/
-    unsigned char *pFB;
-    int fbSize;
-    int fbOrigin;
-    int fbStride;
-    int fbWidth;
-    int fbHeight;
-    int fbBPP;
-    /*@}*/
-
-    /**
-     * \name Device-dependent private information (stored in the SAREA).
-     *
-     * This data is accessed by the client driver only.
-     */
-    /*@{*/
-    void *pDevPriv;
-    int devPrivSize;
-    /*@}*/
-
-    /**
-     * Device-dependent private information (not stored in the SAREA).
-     * 
-     * This pointer is never touched by the DRI layer.
-     */
-#ifdef __cplusplus
-    void *priv;
-#else
-    void *private;
-#endif
-
-    /* Extensions provided by the loader. */
-    const __DRIgetDrawableInfoExtension *getDrawableInfo;
-    const __DRIsystemTimeExtension *systemTime;
-    const __DRIdamageExtension *damage;
-
-    struct {
-	/* Flag to indicate that this is a DRI2 screen.  Many of the above
-	 * fields will not be valid or initializaed in that case. */
-	int enabled;
-	__DRIdri2LoaderExtension *loader;
-	__DRIimageLookupExtension *image;
-	__DRIuseInvalidateExtension *useInvalidate;
-    } dri2;
-
-    /* The lock actually in use, old sarea or DRI2 */
-    drmLock *lock;
-
-    driOptionCache optionInfo;
-    driOptionCache optionCache;
-   unsigned int api_mask;
-   void *loaderPrivate;
-};
-
-extern void
-__driUtilUpdateDrawableInfo(__DRIdrawable *pdp);
-
-extern float
-driCalculateSwapUsage( __DRIdrawable *dPriv,
-		       int64_t last_swap_ust, int64_t current_ust );
-
-extern GLint
-driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 );
-
-extern void
-dri2InvalidateDrawable(__DRIdrawable *drawable);
-
-#endif /* _DRI_UTIL_H_ */
+/*

+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/**

+ * \file dri_util.h

+ * DRI utility functions definitions.

+ *

+ * This module acts as glue between GLX and the actual hardware driver.  A DRI

+ * driver doesn't really \e have to use any of this - it's optional.  But, some

+ * useful stuff is done here that otherwise would have to be duplicated in most

+ * drivers.

+ * 

+ * Basically, these utility functions take care of some of the dirty details of

+ * screen initialization, context creation, context binding, DRM setup, etc.

+ *

+ * These functions are compiled into each DRI driver so libGL.so knows nothing

+ * about them.

+ *

+ * \sa dri_util.c.

+ * 

+ * \author Kevin E. Martin <kevin@precisioninsight.com>

+ * \author Brian Paul <brian@precisioninsight.com>

+ */

+

+#ifndef _DRI_UTIL_H_

+#define _DRI_UTIL_H_

+

+#include <GL/gl.h>

+#include <drm.h>

+#include <drm_sarea.h>

+#include <xf86drm.h>

+#include "xmlconfig.h"

+#include "main/glheader.h"

+#include "main/mtypes.h"

+#include "GL/internal/dri_interface.h"

+

+#define GLX_BAD_CONTEXT                    5

+

+typedef struct __DRIswapInfoRec        __DRIswapInfo;

+

+/**

+ * Extensions.

+ */

+extern const __DRIlegacyExtension driLegacyExtension;

+extern const __DRIcoreExtension driCoreExtension;

+extern const __DRIdri2Extension driDRI2Extension;

+extern const __DRIextension driReadDrawableExtension;

+extern const __DRIcopySubBufferExtension driCopySubBufferExtension;

+extern const __DRIswapControlExtension driSwapControlExtension;

+extern const __DRImediaStreamCounterExtension driMediaStreamCounterExtension;

+extern const __DRI2configQueryExtension dri2ConfigQueryExtension;

+

+/**

+ * Used by DRI_VALIDATE_DRAWABLE_INFO

+ */

+#define DRI_VALIDATE_DRAWABLE_INFO_ONCE(pDrawPriv)              \

+    do {                                                        \

+	if (*(pDrawPriv->pStamp) != pDrawPriv->lastStamp) {     \

+	    __driUtilUpdateDrawableInfo(pDrawPriv);             \

+	}                                                       \

+    } while (0)

+

+

+/**

+ * Utility macro to validate the drawable information.

+ *

+ * See __DRIdrawable::pStamp and __DRIdrawable::lastStamp.

+ */

+#define DRI_VALIDATE_DRAWABLE_INFO(psp, pdp)                            \

+do {                                                                    \

+    while (*(pdp->pStamp) != pdp->lastStamp) {                          \

+        register unsigned int hwContext = psp->pSAREA->lock.lock &      \

+		     ~(DRM_LOCK_HELD | DRM_LOCK_CONT);                  \

+	DRM_UNLOCK(psp->fd, &psp->pSAREA->lock, hwContext);             \

+                                                                        \

+	DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);     \

+	DRI_VALIDATE_DRAWABLE_INFO_ONCE(pdp);                           \

+	DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);   \

+                                                                        \

+	DRM_LIGHT_LOCK(psp->fd, &psp->pSAREA->lock, hwContext);         \

+    }                                                                   \

+} while (0)

+

+/**

+ * Same as above, but for two drawables simultaneously.

+ *

+ */

+

+#define DRI_VALIDATE_TWO_DRAWABLES_INFO(psp, pdp, prp)			\

+do {								\

+    while (*((pdp)->pStamp) != (pdp)->lastStamp ||			\

+	   *((prp)->pStamp) != (prp)->lastStamp) {			\

+        register unsigned int hwContext = (psp)->pSAREA->lock.lock &	\

+	    ~(DRM_LOCK_HELD | DRM_LOCK_CONT);				\

+	DRM_UNLOCK((psp)->fd, &(psp)->pSAREA->lock, hwContext);		\

+									\

+	DRM_SPINLOCK(&(psp)->pSAREA->drawable_lock, (psp)->drawLockID);	\

+	DRI_VALIDATE_DRAWABLE_INFO_ONCE(pdp);                           \

+	DRI_VALIDATE_DRAWABLE_INFO_ONCE(prp);				\

+	DRM_SPINUNLOCK(&(psp)->pSAREA->drawable_lock, (psp)->drawLockID); \

+									\

+	DRM_LIGHT_LOCK((psp)->fd, &(psp)->pSAREA->lock, hwContext);	\

+    }                                                                   \

+} while (0)

+

+

+/**

+ * Driver callback functions.

+ *

+ * Each DRI driver must have one of these structures with all the pointers set

+ * to appropriate functions within the driver.

+ * 

+ * When glXCreateContext() is called, for example, it'll call a helper function

+ * dri_util.c which in turn will jump through the \a CreateContext pointer in

+ * this structure.

+ */

+struct __DriverAPIRec {

+    const __DRIconfig **(*InitScreen) (__DRIscreen * priv);

+

+    /**

+     * Screen destruction callback

+     */

+    void (*DestroyScreen)(__DRIscreen *driScrnPriv);

+

+    /**

+     * Context creation callback

+     */	    	    

+    GLboolean (*CreateContext)(gl_api api,

+			       const struct gl_config *glVis,

+			       __DRIcontext *driContextPriv,

+                               void *sharedContextPrivate);

+

+    /**

+     * Context destruction callback

+     */

+    void (*DestroyContext)(__DRIcontext *driContextPriv);

+

+    /**

+     * Buffer (drawable) creation callback

+     */

+    GLboolean (*CreateBuffer)(__DRIscreen *driScrnPriv,

+                              __DRIdrawable *driDrawPriv,

+                              const struct gl_config *glVis,

+                              GLboolean pixmapBuffer);

+    

+    /**

+     * Buffer (drawable) destruction callback

+     */

+    void (*DestroyBuffer)(__DRIdrawable *driDrawPriv);

+

+    /**

+     * Buffer swapping callback 

+     */

+    void (*SwapBuffers)(__DRIdrawable *driDrawPriv);

+

+    /**

+     * Context activation callback

+     */

+    GLboolean (*MakeCurrent)(__DRIcontext *driContextPriv,

+                             __DRIdrawable *driDrawPriv,

+                             __DRIdrawable *driReadPriv);

+

+    /**

+     * Context unbinding callback

+     */

+    GLboolean (*UnbindContext)(__DRIcontext *driContextPriv);

+  

+    /**

+     * Retrieves statistics about buffer swap operations.  Required if

+     * GLX_OML_sync_control or GLX_MESA_swap_frame_usage is supported.

+     */

+    int (*GetSwapInfo)( __DRIdrawable *dPriv, __DRIswapInfo * sInfo );

+

+

+    /**

+     * These are required if GLX_OML_sync_control is supported.

+     */

+    /*@{*/

+    int (*WaitForMSC)( __DRIdrawable *priv, int64_t target_msc, 

+		       int64_t divisor, int64_t remainder,

+		       int64_t * msc );

+    int (*WaitForSBC)( __DRIdrawable *priv, int64_t target_sbc,

+		       int64_t * msc, int64_t * sbc );

+

+    int64_t (*SwapBuffersMSC)( __DRIdrawable *priv, int64_t target_msc,

+			       int64_t divisor, int64_t remainder );

+    /*@}*/

+    void (*CopySubBuffer)(__DRIdrawable *driDrawPriv,

+			  int x, int y, int w, int h);

+

+    /**

+     * New version of GetMSC so we can pass drawable data to the low

+     * level DRM driver (e.g. pipe info).  Required if

+     * GLX_SGI_video_sync or GLX_OML_sync_control is supported.

+     */

+    int (*GetDrawableMSC) ( __DRIscreen * priv,

+			    __DRIdrawable *drawablePrivate,

+			    int64_t *count);

+

+

+

+    /* DRI2 Entry point */

+    const __DRIconfig **(*InitScreen2) (__DRIscreen * priv);

+

+    __DRIbuffer *(*AllocateBuffer) (__DRIscreen *screenPrivate,

+				    unsigned int attachment,

+				    unsigned int format,

+				    int width, int height);

+    void (*ReleaseBuffer) (__DRIscreen *screenPrivate, __DRIbuffer *buffer);

+};

+

+extern const struct __DriverAPIRec driDriverAPI;

+

+

+struct __DRIswapInfoRec {

+    /** 

+     * Number of swapBuffers operations that have been *completed*. 

+     */

+    uint64_t swap_count;

+

+    /**

+     * Unadjusted system time of the last buffer swap.  This is the time

+     * when the swap completed, not the time when swapBuffers was called.

+     */

+    int64_t   swap_ust;

+

+    /**

+     * Number of swap operations that occurred after the swap deadline.  That

+     * is if a swap happens more than swap_interval frames after the previous

+     * swap, it has missed its deadline.  If swap_interval is 0, then the

+     * swap deadline is 1 frame after the previous swap.

+     */

+    uint64_t swap_missed_count;

+

+    /**

+     * Amount of time used by the last swap that missed its deadline.  This

+     * is calculated as (__glXGetUST() - swap_ust) / (swap_interval * 

+     * time_for_single_vrefresh)).  If the actual value of swap_interval is

+     * 0, then 1 is used instead.  If swap_missed_count is non-zero, this

+     * should be greater-than 1.0.

+     */

+    float     swap_missed_usage;

+};

+

+

+/**

+ * Per-drawable private DRI driver information.

+ */

+struct __DRIdrawableRec {

+    /**

+     * Kernel drawable handle

+     */

+    drm_drawable_t hHWDrawable;

+

+    /**

+     * Driver's private drawable information.  

+     *

+     * This structure is opaque.

+     */

+    void *driverPrivate;

+

+    /**

+     * Private data from the loader.  We just hold on to it and pass

+     * it back when calling into loader provided functions.

+     */

+    void *loaderPrivate;

+

+    /**

+     * Reference count for number of context's currently bound to this

+     * drawable.  

+     *

+     * Once it reaches zero, the drawable can be destroyed.

+     *

+     * \note This behavior will change with GLX 1.3.

+     */

+    int refcount;

+

+    /**

+     * Index of this drawable information in the SAREA.

+     */

+    unsigned int index;

+

+    /**

+     * Pointer to the "drawable has changed ID" stamp in the SAREA (or

+     * to dri2.stamp if DRI2 is being used).

+     */

+    unsigned int *pStamp;

+

+    /**

+     * Last value of the stamp.

+     *

+     * If this differs from the value stored at __DRIdrawable::pStamp,

+     * then the drawable information has been modified by the X server, and the

+     * drawable information (below) should be retrieved from the X server.

+     */

+    unsigned int lastStamp;

+

+    /**

+     * \name Drawable 

+     *

+     * Drawable information used in software fallbacks.

+     */

+    /*@{*/

+    int x;

+    int y;

+    int w;

+    int h;

+    int numClipRects;

+    drm_clip_rect_t *pClipRects;

+    /*@}*/

+

+    /**

+     * \name Back and depthbuffer

+     *

+     * Information about the back and depthbuffer where different from above.

+     */

+    /*@{*/

+    int backX;

+    int backY;

+    int backClipRectType;

+    int numBackClipRects;

+    drm_clip_rect_t *pBackClipRects;

+    /*@}*/

+

+    /**

+     * \name Vertical blank tracking information

+     * Used for waiting on vertical blank events.

+     */

+    /*@{*/

+    unsigned int vblSeq;

+    unsigned int vblFlags;

+    /*@}*/

+

+    /**

+     * \name Monotonic MSC tracking

+     *

+     * Low level driver is responsible for updating msc_base and

+     * vblSeq values so that higher level code can calculate

+     * a new msc value or msc target for a WaitMSC call.  The new value

+     * will be:

+     *   msc = msc_base + get_vblank_count() - vblank_base;

+     *

+     * And for waiting on a value, core code will use:

+     *   actual_target = target_msc - msc_base + vblank_base;

+     */

+    /*@{*/

+    int64_t vblank_base;

+    int64_t msc_base;

+    /*@}*/

+

+    /**

+     * Pointer to context to which this drawable is currently bound.

+     */

+    __DRIcontext *driContextPriv;

+

+    /**

+     * Pointer to screen on which this drawable was created.

+     */

+    __DRIscreen *driScreenPriv;

+

+    /**

+     * Controls swap interval as used by GLX_SGI_swap_control and

+     * GLX_MESA_swap_control.

+     */

+    unsigned int swap_interval;

+

+    struct {

+	unsigned int stamp;

+	drm_clip_rect_t clipRect;

+    } dri2;

+};

+

+/**

+ * Per-context private driver information.

+ */

+struct __DRIcontextRec {

+    /**

+     * Kernel context handle used to access the device lock.

+     */

+    drm_context_t hHWContext;

+

+    /**

+     * Device driver's private context data.  This structure is opaque.

+     */

+    void *driverPrivate;

+

+    /**

+     * Pointer to drawable currently bound to this context for drawing.

+     */

+    __DRIdrawable *driDrawablePriv;

+

+    /**

+     * Pointer to drawable currently bound to this context for reading.

+     */

+    __DRIdrawable *driReadablePriv;

+

+    /**

+     * Pointer to screen on which this context was created.

+     */

+    __DRIscreen *driScreenPriv;

+

+    /**

+     * The loaders's private context data.  This structure is opaque.

+     */

+    void *loaderPrivate;

+

+    struct {

+	int draw_stamp;

+	int read_stamp;

+    } dri2;

+};

+

+/**

+ * Per-screen private driver information.

+ */

+struct __DRIscreenRec {

+    /**

+     * Current screen's number

+     */

+    int myNum;

+

+    /**

+     * Callback functions into the hardware-specific DRI driver code.

+     */

+    struct __DriverAPIRec DriverAPI;

+

+    const __DRIextension **extensions;

+    /**

+     * DDX / 2D driver version information.

+     */

+    __DRIversion ddx_version;

+

+    /**

+     * DRI X extension version information.

+     */

+    __DRIversion dri_version;

+

+    /**

+     * DRM (kernel module) version information.

+     */

+    __DRIversion drm_version;

+

+    /**

+     * ID used when the client sets the drawable lock.

+     *

+     * The X server uses this value to detect if the client has died while

+     * holding the drawable lock.

+     */

+    int drawLockID;

+

+    /**

+     * File descriptor returned when the kernel device driver is opened.

+     * 

+     * Used to:

+     *   - authenticate client to kernel

+     *   - map the frame buffer, SAREA, etc.

+     *   - close the kernel device driver

+     */

+    int fd;

+

+    /**

+     * SAREA pointer 

+     *

+     * Used to access:

+     *   - the device lock

+     *   - the device-independent per-drawable and per-context(?) information

+     */

+    drm_sarea_t *pSAREA;

+

+    /**

+     * \name Direct frame buffer access information 

+     * Used for software fallbacks.

+     */

+    /*@{*/

+    unsigned char *pFB;

+    int fbSize;

+    int fbOrigin;

+    int fbStride;

+    int fbWidth;

+    int fbHeight;

+    int fbBPP;

+    /*@}*/

+

+    /**

+     * \name Device-dependent private information (stored in the SAREA).

+     *

+     * This data is accessed by the client driver only.

+     */

+    /*@{*/

+    void *pDevPriv;

+    int devPrivSize;

+    /*@}*/

+

+    /**

+     * Device-dependent private information (not stored in the SAREA).

+     * 

+     * This pointer is never touched by the DRI layer.

+     */

+#ifdef __cplusplus

+    void *priv;

+#else

+    void *private;

+#endif

+

+    /* Extensions provided by the loader. */

+    const __DRIgetDrawableInfoExtension *getDrawableInfo;

+    const __DRIsystemTimeExtension *systemTime;

+    const __DRIdamageExtension *damage;

+

+    struct {

+	/* Flag to indicate that this is a DRI2 screen.  Many of the above

+	 * fields will not be valid or initializaed in that case. */

+	int enabled;

+	__DRIdri2LoaderExtension *loader;

+	__DRIimageLookupExtension *image;

+	__DRIuseInvalidateExtension *useInvalidate;

+    } dri2;

+

+    /* The lock actually in use, old sarea or DRI2 */

+    drmLock *lock;

+

+    driOptionCache optionInfo;

+    driOptionCache optionCache;

+   unsigned int api_mask;

+   void *loaderPrivate;

+};

+

+extern void

+__driUtilUpdateDrawableInfo(__DRIdrawable *pdp);

+

+extern float

+driCalculateSwapUsage( __DRIdrawable *dPriv,

+		       int64_t last_swap_ust, int64_t current_ust );

+

+extern GLint

+driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 );

+

+extern void

+dri2InvalidateDrawable(__DRIdrawable *drawable);

+

+#endif /* _DRI_UTIL_H_ */

diff --git a/mesalib/src/mesa/drivers/dri/common/utils.c b/mesalib/src/mesa/drivers/dri/common/utils.c
index a2b0b4e94..02c8cc6f5 100644
--- a/mesalib/src/mesa/drivers/dri/common/utils.c
+++ b/mesalib/src/mesa/drivers/dri/common/utils.c
@@ -219,7 +219,9 @@ void driInitExtensions( struct gl_context * ctx,
       /* Map the static functions.  Together with those mapped by remap

        * table, this should cover everything mesa core knows.

        */

+#ifdef _GLAPI_USE_REMAP_TABLE

       _mesa_map_static_functions();

+#endif

       return;

    }

 

diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index 719b406ec..e6d1ab741 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -1,806 +1,811 @@
-/*
- * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DRI software rasterizer
- *
- * This is the mesa swrast module packaged into a DRI driver structure.
- *
- * The front-buffer is allocated by the loader. The loader provides read/write
- * callbacks for access to the front-buffer. The driver uses a scratch row for
- * front-buffer rendering to avoid repeated calls to the loader.
- *
- * The back-buffer is allocated by the driver and is private.
- */
-
-#include "main/context.h"
-#include "main/extensions.h"
-#include "main/formats.h"
-#include "main/framebuffer.h"
-#include "main/imports.h"
-#include "main/renderbuffer.h"
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
-#include "vbo/vbo.h"
-#include "drivers/common/driverfuncs.h"
-#include "drivers/common/meta.h"
-#include "utils.h"
-
-#include "main/teximage.h"
-#include "main/texformat.h"
-#include "main/texstate.h"
-
-#include "swrast_priv.h"
-
-
-/**
- * Screen and config-related functions
- */
-
-static void swrastSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
-				GLint texture_format, __DRIdrawable *dPriv)
-{
-    struct dri_context *dri_ctx;
-    int x, y, w, h;
-    __DRIscreen *sPriv = dPriv->driScreenPriv;
-    struct gl_texture_unit *texUnit;
-    struct gl_texture_object *texObj;
-    struct gl_texture_image *texImage;
-    uint32_t internalFormat;
-    gl_format texFormat;
-
-    dri_ctx = pDRICtx->driverPrivate;
-
-    internalFormat = (texture_format == __DRI_TEXTURE_FORMAT_RGB ? 3 : 4);
-
-    texUnit = _mesa_get_current_tex_unit(&dri_ctx->Base);
-    texObj = _mesa_select_tex_object(&dri_ctx->Base, texUnit, target);
-    texImage = _mesa_get_tex_image(&dri_ctx->Base, texObj, target, 0);
-
-    _mesa_lock_texture(&dri_ctx->Base, texObj);
-
-    sPriv->swrast_loader->getDrawableInfo(dPriv, &x, &y, &w, &h, dPriv->loaderPrivate);
-
-    if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
-	texFormat = MESA_FORMAT_XRGB8888;
-    else
-	texFormat = MESA_FORMAT_ARGB8888;
-
-    _mesa_init_teximage_fields(&dri_ctx->Base, target, texImage,
-			       w, h, 1, 0, internalFormat, texFormat);
-
-    sPriv->swrast_loader->getImage(dPriv, x, y, w, h, (char *)texImage->Data,
-				   dPriv->loaderPrivate);
-
-    _mesa_unlock_texture(&dri_ctx->Base, texObj);
-}
-
-static void swrastSetTexBuffer(__DRIcontext *pDRICtx, GLint target,
-			       __DRIdrawable *dPriv)
-{
-    swrastSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
-}
-
-static const __DRItexBufferExtension swrastTexBufferExtension = {
-    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
-    swrastSetTexBuffer,
-    swrastSetTexBuffer2,
-};
-
-static const __DRIextension *dri_screen_extensions[] = {
-    &swrastTexBufferExtension.base,
-    NULL
-};
-
-static __DRIconfig **
-swrastFillInModes(__DRIscreen *psp,
-		  unsigned pixel_bits, unsigned depth_bits,
-		  unsigned stencil_bits, GLboolean have_back_buffer)
-{
-    __DRIconfig **configs;
-    unsigned depth_buffer_factor;
-    unsigned back_buffer_factor;
-    GLenum fb_format;
-    GLenum fb_type;
-
-    /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
-     * support pageflipping at all.
-     */
-    static const GLenum back_buffer_modes[] = {
-	GLX_NONE, GLX_SWAP_UNDEFINED_OML
-    };
-
-    uint8_t depth_bits_array[4];
-    uint8_t stencil_bits_array[4];
-    uint8_t msaa_samples_array[1];
-
-    depth_bits_array[0] = 0;
-    depth_bits_array[1] = 0;
-    depth_bits_array[2] = depth_bits;
-    depth_bits_array[3] = depth_bits;
-
-    /* Just like with the accumulation buffer, always provide some modes
-     * with a stencil buffer.
-     */
-    stencil_bits_array[0] = 0;
-    stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
-    stencil_bits_array[2] = 0;
-    stencil_bits_array[3] = (stencil_bits == 0) ? 8 : stencil_bits;
-
-    msaa_samples_array[0] = 0;
-
-    depth_buffer_factor = 4;
-    back_buffer_factor = 2;
-
-    switch (pixel_bits) {
-    case 8:
-	fb_format = GL_RGB;
-	fb_type = GL_UNSIGNED_BYTE_2_3_3_REV;
-	break;
-    case 16:
-	fb_format = GL_RGB;
-	fb_type = GL_UNSIGNED_SHORT_5_6_5;
-	break;
-    case 24:
-	fb_format = GL_BGR;
-	fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
-	break;
-    case 32:
-	fb_format = GL_BGRA;
-	fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
-	break;
-    default:
-	fprintf(stderr, "[%s:%u] bad depth %d\n", __func__, __LINE__,
-		pixel_bits);
-	return NULL;
-    }
-
-    configs = driCreateConfigs(fb_format, fb_type,
-			       depth_bits_array, stencil_bits_array,
-			       depth_buffer_factor, back_buffer_modes,
-			       back_buffer_factor, msaa_samples_array, 1,
-			       GL_TRUE);
-    if (configs == NULL) {
-	fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
-		__LINE__);
-	return NULL;
-    }
-
-    return configs;
-}
-
-static const __DRIconfig **
-dri_init_screen(__DRIscreen * psp)
-{
-    __DRIconfig **configs8, **configs16, **configs24, **configs32;
-
-    TRACE;
-
-    psp->extensions = dri_screen_extensions;
-
-    configs8  = swrastFillInModes(psp,  8,  8, 0, 1);
-    configs16 = swrastFillInModes(psp, 16, 16, 0, 1);
-    configs24 = swrastFillInModes(psp, 24, 24, 8, 1);
-    configs32 = swrastFillInModes(psp, 32, 24, 8, 1);
-
-    configs16 = driConcatConfigs(configs8, configs16);
-    configs24 = driConcatConfigs(configs16, configs24);
-    configs32 = driConcatConfigs(configs24, configs32);
-
-    return (const __DRIconfig **)configs32;
-}
-
-static void
-dri_destroy_screen(__DRIscreen * sPriv)
-{
-    TRACE;
-}
-
-
-/**
- * Framebuffer and renderbuffer-related functions.
- */
-
-static GLuint
-choose_pixel_format(const struct gl_config *v)
-{
-    int depth = v->rgbBits;
-
-    if (depth == 32
-	&& v->redMask   == 0xff0000
-	&& v->greenMask == 0x00ff00
-	&& v->blueMask  == 0x0000ff)
-	return PF_A8R8G8B8;
-    else if (depth == 24
-	     && v->redMask   == 0xff0000
-	     && v->greenMask == 0x00ff00
-	     && v->blueMask  == 0x0000ff)
-	return PF_X8R8G8B8;
-    else if (depth == 16
-	     && v->redMask   == 0xf800
-	     && v->greenMask == 0x07e0
-	     && v->blueMask  == 0x001f)
-	return PF_R5G6B5;
-    else if (depth == 8
-	     && v->redMask   == 0x07
-	     && v->greenMask == 0x38
-	     && v->blueMask  == 0xc0)
-	return PF_R3G3B2;
-
-    _mesa_problem( NULL, "unexpected format in %s", __FUNCTION__ );
-    return 0;
-}
-
-static void
-swrast_delete_renderbuffer(struct gl_renderbuffer *rb)
-{
-    TRACE;
-
-    free(rb->Data);
-    free(rb);
-}
-
-/* see bytes_per_line in libGL */
-static INLINE int
-bytes_per_line(unsigned pitch_bits, unsigned mul)
-{
-   unsigned mask = mul - 1;
-
-   return ((pitch_bits + mask) & ~mask) / 8;
-}
-
-static GLboolean
-swrast_alloc_front_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
-			   GLenum internalFormat, GLuint width, GLuint height)
-{
-    struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
-
-    TRACE;
-
-    rb->Data = NULL;
-    rb->Width = width;
-    rb->Height = height;
-
-    xrb->pitch = bytes_per_line(width * xrb->bpp, 32);
-
-    return GL_TRUE;
-}
-
-static GLboolean
-swrast_alloc_back_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
-			  GLenum internalFormat, GLuint width, GLuint height)
-{
-    struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
-
-    TRACE;
-
-    free(rb->Data);
-
-    swrast_alloc_front_storage(ctx, rb, internalFormat, width, height);
-
-    rb->Data = malloc(height * xrb->pitch);
-
-    return GL_TRUE;
-}
-
-static struct swrast_renderbuffer *
-swrast_new_renderbuffer(const struct gl_config *visual, GLboolean front)
-{
-    struct swrast_renderbuffer *xrb = calloc(1, sizeof *xrb);
-    GLuint pixel_format;
-
-    TRACE;
-
-    if (!xrb)
-	return NULL;
-
-    _mesa_init_renderbuffer(&xrb->Base, 0);
-
-    pixel_format = choose_pixel_format(visual);
-
-    xrb->Base.Delete = swrast_delete_renderbuffer;
-    if (front) {
-	xrb->Base.AllocStorage = swrast_alloc_front_storage;
-	swrast_set_span_funcs_front(xrb, pixel_format);
-    }
-    else {
-	xrb->Base.AllocStorage = swrast_alloc_back_storage;
-	swrast_set_span_funcs_back(xrb, pixel_format);
-    }
-
-    switch (pixel_format) {
-    case PF_A8R8G8B8:
-	xrb->Base.Format = MESA_FORMAT_ARGB8888;
-	xrb->Base.InternalFormat = GL_RGBA;
-	xrb->Base._BaseFormat = GL_RGBA;
-	xrb->Base.DataType = GL_UNSIGNED_BYTE;
-	xrb->bpp = 32;
-	break;
-    case PF_X8R8G8B8:
-	xrb->Base.Format = MESA_FORMAT_ARGB8888; /* XXX */
-	xrb->Base.InternalFormat = GL_RGB;
-	xrb->Base._BaseFormat = GL_RGB;
-	xrb->Base.DataType = GL_UNSIGNED_BYTE;
-	xrb->bpp = 32;
-	break;
-    case PF_R5G6B5:
-	xrb->Base.Format = MESA_FORMAT_RGB565;
-	xrb->Base.InternalFormat = GL_RGB;
-	xrb->Base._BaseFormat = GL_RGB;
-	xrb->Base.DataType = GL_UNSIGNED_BYTE;
-	xrb->bpp = 16;
-	break;
-    case PF_R3G3B2:
-	xrb->Base.Format = MESA_FORMAT_RGB332;
-	xrb->Base.InternalFormat = GL_RGB;
-	xrb->Base._BaseFormat = GL_RGB;
-	xrb->Base.DataType = GL_UNSIGNED_BYTE;
-	xrb->bpp = 8;
-	break;
-    default:
-	return NULL;
-    }
-
-    return xrb;
-}
-
-static GLboolean
-dri_create_buffer(__DRIscreen * sPriv,
-		  __DRIdrawable * dPriv,
-		  const struct gl_config * visual, GLboolean isPixmap)
-{
-    struct dri_drawable *drawable = NULL;
-    struct gl_framebuffer *fb;
-    struct swrast_renderbuffer *frontrb, *backrb;
-
-    TRACE;
-
-    drawable = CALLOC_STRUCT(dri_drawable);
-    if (drawable == NULL)
-	goto drawable_fail;
-
-    dPriv->driverPrivate = drawable;
-    drawable->dPriv = dPriv;
-
-    drawable->row = malloc(MAX_WIDTH * 4);
-    if (drawable->row == NULL)
-	goto drawable_fail;
-
-    fb = &drawable->Base;
-
-    /* basic framebuffer setup */
-    _mesa_initialize_window_framebuffer(fb, visual);
-
-    /* add front renderbuffer */
-    frontrb = swrast_new_renderbuffer(visual, GL_TRUE);
-    _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontrb->Base);
-
-    /* add back renderbuffer */
-    if (visual->doubleBufferMode) {
-	backrb = swrast_new_renderbuffer(visual, GL_FALSE);
-	_mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backrb->Base);
-    }
-
-    /* add software renderbuffers */
-    _mesa_add_soft_renderbuffers(fb,
-				 GL_FALSE, /* color */
-				 visual->haveDepthBuffer,
-				 visual->haveStencilBuffer,
-				 visual->haveAccumBuffer,
-				 GL_FALSE, /* alpha */
-				 GL_FALSE /* aux bufs */);
-
-    return GL_TRUE;
-
-drawable_fail:
-
-    if (drawable)
-	free(drawable->row);
-
-    FREE(drawable);
-
-    return GL_FALSE;
-}
-
-static void
-dri_destroy_buffer(__DRIdrawable * dPriv)
-{
-    TRACE;
-
-    if (dPriv) {
-	struct dri_drawable *drawable = dri_drawable(dPriv);
-	struct gl_framebuffer *fb;
-
-	free(drawable->row);
-
-	fb = &drawable->Base;
-
-	fb->DeletePending = GL_TRUE;
-	_mesa_reference_framebuffer(&fb, NULL);
-    }
-}
-
-static void
-dri_swap_buffers(__DRIdrawable * dPriv)
-{
-    __DRIscreen *sPriv = dPriv->driScreenPriv;
-
-    GET_CURRENT_CONTEXT(ctx);
-
-    struct dri_drawable *drawable = dri_drawable(dPriv);
-    struct gl_framebuffer *fb;
-    struct swrast_renderbuffer *frontrb, *backrb;
-
-    TRACE;
-
-    fb = &drawable->Base;
-
-    frontrb =
-	swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
-    backrb =
-	swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);
-
-    /* check for signle-buffered */
-    if (backrb == NULL)
-	return;
-
-    /* check if swapping currently bound buffer */
-    if (ctx && ctx->DrawBuffer == fb) {
-	/* flush pending rendering */
-	_mesa_notifySwapBuffers(ctx);
-    }
-
-    sPriv->swrast_loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
-				   0, 0,
-				   frontrb->Base.Width,
-				   frontrb->Base.Height,
-				   backrb->Base.Data,
-				   dPriv->loaderPrivate);
-}
-
-
-/**
- * General device driver functions.
- */
-
-static void
-get_window_size( struct gl_framebuffer *fb, GLsizei *w, GLsizei *h )
-{
-    __DRIdrawable *dPriv = swrast_drawable(fb)->dPriv;
-    __DRIscreen *sPriv = dPriv->driScreenPriv;
-    int x, y;
-
-    sPriv->swrast_loader->getDrawableInfo(dPriv,
-					  &x, &y, w, h,
-					  dPriv->loaderPrivate);
-}
-
-static void
-swrast_check_and_update_window_size( struct gl_context *ctx, struct gl_framebuffer *fb )
-{
-    GLsizei width, height;
-
-    get_window_size(fb, &width, &height);
-    if (fb->Width != width || fb->Height != height) {
-	_mesa_resize_framebuffer(ctx, fb, width, height);
-    }
-}
-
-static const GLubyte *
-get_string(struct gl_context *ctx, GLenum pname)
-{
-    (void) ctx;
-    switch (pname) {
-	case GL_VENDOR:
-	    return (const GLubyte *) "Mesa Project";
-	case GL_RENDERER:
-	    return (const GLubyte *) "Software Rasterizer";
-	default:
-	    return NULL;
-    }
-}
-
-static void
-update_state( struct gl_context *ctx, GLuint new_state )
-{
-    /* not much to do here - pass it on */
-    _swrast_InvalidateState( ctx, new_state );
-    _swsetup_InvalidateState( ctx, new_state );
-    _vbo_InvalidateState( ctx, new_state );
-    _tnl_InvalidateState( ctx, new_state );
-}
-
-static void
-viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
-    struct gl_framebuffer *draw = ctx->WinSysDrawBuffer;
-    struct gl_framebuffer *read = ctx->WinSysReadBuffer;
-
-    swrast_check_and_update_window_size(ctx, draw);
-    swrast_check_and_update_window_size(ctx, read);
-}
-
-static gl_format swrastChooseTextureFormat(struct gl_context * ctx,
-					   GLint internalFormat,
-					   GLenum format,
-					   GLenum type)
-{
-    if (internalFormat == GL_RGB)
-	return MESA_FORMAT_XRGB8888;
-    return _mesa_choose_tex_format(ctx, internalFormat, format, type);
-}
-
-static void
-swrast_init_driver_functions(struct dd_function_table *driver)
-{
-    driver->GetString = get_string;
-    driver->UpdateState = update_state;
-    driver->GetBufferSize = NULL;
-    driver->Viewport = viewport;
-    driver->ChooseTextureFormat = swrastChooseTextureFormat;
-}
-
-static const char *es2_extensions[] = {
-   /* Used by mesa internally (cf all_mesa_extensions in ../common/utils.c) */
-   "GL_ARB_draw_buffers",
-   "GL_ARB_multisample",
-   "GL_ARB_texture_compression",
-   "GL_ARB_transpose_matrix",
-   "GL_ARB_vertex_buffer_object",
-   "GL_ARB_window_pos",
-   "GL_EXT_blend_func_separate",
-   "GL_EXT_compiled_vertex_array",
-   "GL_EXT_framebuffer_blit",
-   "GL_EXT_multi_draw_arrays",
-   "GL_EXT_polygon_offset",
-   "GL_EXT_texture_object",
-   "GL_EXT_vertex_array",
-   "GL_IBM_multimode_draw_arrays",
-   "GL_MESA_window_pos",
-   "GL_NV_vertex_program",
-
-   /* Required by GLES2 */
-   "GL_ARB_fragment_program",
-   "GL_ARB_fragment_shader",
-   "GL_ARB_multitexture",
-   "GL_ARB_shader_objects",
-   "GL_ARB_texture_cube_map",
-   "GL_ARB_texture_mirrored_repeat",
-   "GL_ARB_texture_non_power_of_two",
-   "GL_ARB_vertex_shader",
-   "GL_EXT_blend_color",
-   "GL_EXT_blend_equation_separate",
-   "GL_EXT_blend_minmax",
-   "GL_EXT_blend_subtract",
-   "GL_EXT_stencil_wrap",
-
-   /* Optional GLES2 */
-   "GL_ARB_framebuffer_object",
-   "GL_EXT_texture_filter_anisotropic",
-   "GL_ARB_depth_texture",
-   "GL_EXT_packed_depth_stencil",
-   "GL_EXT_framebuffer_object",
-   NULL,
-};
-
-static void
-InitExtensionsES2(struct gl_context *ctx)
-{
-   int i;
-
-   /* Can't use driInitExtensions() since it uses extensions from
-    * main/remap_helper.h when called the first time. */
-
-   for (i = 0; es2_extensions[i]; i++)
-      _mesa_enable_extension(ctx, es2_extensions[i]);
-}
-
-/**
- * Context-related functions.
- */
-
-static GLboolean
-dri_create_context(gl_api api,
-		   const struct gl_config * visual,
-		   __DRIcontext * cPriv, void *sharedContextPrivate)
-{
-    struct dri_context *ctx = NULL;
-    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
-    struct gl_context *mesaCtx = NULL;
-    struct gl_context *sharedCtx = NULL;
-    struct dd_function_table functions;
-
-    TRACE;
-
-    ctx = CALLOC_STRUCT(dri_context);
-    if (ctx == NULL)
-	goto context_fail;
-
-    cPriv->driverPrivate = ctx;
-    ctx->cPriv = cPriv;
-
-    /* build table of device driver functions */
-    _mesa_init_driver_functions(&functions);
-    swrast_init_driver_functions(&functions);
-
-    if (share) {
-	sharedCtx = &share->Base;
-    }
-
-    mesaCtx = &ctx->Base;
-
-    /* basic context setup */
-    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {
-	goto context_fail;
-    }
-
-    /* do bounds checking to prevent segfaults and server crashes! */
-    mesaCtx->Const.CheckArrayBounds = GL_TRUE;
-
-    /* create module contexts */
-    _swrast_CreateContext( mesaCtx );
-    _vbo_CreateContext( mesaCtx );
-    _tnl_CreateContext( mesaCtx );
-    _swsetup_CreateContext( mesaCtx );
-    _swsetup_Wakeup( mesaCtx );
-
-    /* use default TCL pipeline */
-    {
-       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
-       tnl->Driver.RunPipeline = _tnl_run_pipeline;
-    }
-
-    _mesa_meta_init(mesaCtx);
-    _mesa_enable_sw_extensions(mesaCtx);
-
-    switch (api) {
-    case API_OPENGL:
-        _mesa_enable_1_3_extensions(mesaCtx);
-        _mesa_enable_1_4_extensions(mesaCtx);
-        _mesa_enable_1_5_extensions(mesaCtx);
-        _mesa_enable_2_0_extensions(mesaCtx);
-        _mesa_enable_2_1_extensions(mesaCtx);
-
-        driInitExtensions( mesaCtx, NULL, GL_FALSE );
-        break;
-    case API_OPENGLES:
-        _mesa_enable_1_3_extensions(mesaCtx);
-        _mesa_enable_1_4_extensions(mesaCtx);
-        _mesa_enable_1_5_extensions(mesaCtx);
-
-        break;
-    case API_OPENGLES2:
-        InitExtensionsES2( mesaCtx);
-        break;
-    }
-
-    return GL_TRUE;
-
-context_fail:
-
-    FREE(ctx);
-
-    return GL_FALSE;
-}
-
-static void
-dri_destroy_context(__DRIcontext * cPriv)
-{
-    TRACE;
-
-    if (cPriv) {
-	struct dri_context *ctx = dri_context(cPriv);
-	struct gl_context *mesaCtx;
-
-	mesaCtx = &ctx->Base;
-
-        _mesa_meta_free(mesaCtx);
-	_swsetup_DestroyContext( mesaCtx );
-	_swrast_DestroyContext( mesaCtx );
-	_tnl_DestroyContext( mesaCtx );
-	_vbo_DestroyContext( mesaCtx );
-	_mesa_destroy_context( mesaCtx );
-    }
-}
-
-static GLboolean
-dri_make_current(__DRIcontext * cPriv,
-		 __DRIdrawable * driDrawPriv,
-		 __DRIdrawable * driReadPriv)
-{
-    struct gl_context *mesaCtx;
-    struct gl_framebuffer *mesaDraw;
-    struct gl_framebuffer *mesaRead;
-    TRACE;
-
-    if (cPriv) {
-	struct dri_context *ctx = dri_context(cPriv);
-	struct dri_drawable *draw;
-	struct dri_drawable *read;
-
-	if (!driDrawPriv || !driReadPriv)
-	    return GL_FALSE;
-
-	draw = dri_drawable(driDrawPriv);
-	read = dri_drawable(driReadPriv);
-	mesaCtx = &ctx->Base;
-	mesaDraw = &draw->Base;
-	mesaRead = &read->Base;
-
-	/* check for same context and buffer */
-	if (mesaCtx == _mesa_get_current_context()
-	    && mesaCtx->DrawBuffer == mesaDraw
-	    && mesaCtx->ReadBuffer == mesaRead) {
-	    return GL_TRUE;
-	}
-
-	_glapi_check_multithread();
-
-	swrast_check_and_update_window_size(mesaCtx, mesaDraw);
-	if (mesaRead != mesaDraw)
-	    swrast_check_and_update_window_size(mesaCtx, mesaRead);
-
-	_mesa_make_current( mesaCtx,
-			    mesaDraw,
-			    mesaRead );
-    }
-    else {
-	/* unbind */
-	_mesa_make_current( NULL, NULL, NULL );
-    }
-
-    return GL_TRUE;
-}
-
-static GLboolean
-dri_unbind_context(__DRIcontext * cPriv)
-{
-    TRACE;
-    (void) cPriv;
-
-    /* Unset current context and dispath table */
-    _mesa_make_current(NULL, NULL, NULL);
-
-    return GL_TRUE;
-}
-
-
-const struct __DriverAPIRec driDriverAPI = {
-    .InitScreen = dri_init_screen,
-    .DestroyScreen = dri_destroy_screen,
-    .CreateContext = dri_create_context,
-    .DestroyContext = dri_destroy_context,
-    .CreateBuffer = dri_create_buffer,
-    .DestroyBuffer = dri_destroy_buffer,
-    .SwapBuffers = dri_swap_buffers,
-    .MakeCurrent = dri_make_current,
-    .UnbindContext = dri_unbind_context,
-};
-
-/* This is the table of extensions that the loader will dlsym() for. */
-PUBLIC const __DRIextension *__driDriverExtensions[] = {
-    &driCoreExtension.base,
-    &driSWRastExtension.base,
-    NULL
-};
+/*

+ * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/*

+ * DRI software rasterizer

+ *

+ * This is the mesa swrast module packaged into a DRI driver structure.

+ *

+ * The front-buffer is allocated by the loader. The loader provides read/write

+ * callbacks for access to the front-buffer. The driver uses a scratch row for

+ * front-buffer rendering to avoid repeated calls to the loader.

+ *

+ * The back-buffer is allocated by the driver and is private.

+ */

+

+#ifdef _MSC_VER

+#define WIN32_LEAN_AND_MEAN 1

+#include <windows.h>

+#endif

+

+#include "main/context.h"

+#include "main/extensions.h"

+#include "main/formats.h"

+#include "main/framebuffer.h"

+#include "main/imports.h"

+#include "main/renderbuffer.h"

+#include "swrast/swrast.h"

+#include "swrast_setup/swrast_setup.h"

+#include "tnl/tnl.h"

+#include "tnl/t_context.h"

+#include "tnl/t_pipeline.h"

+#include "vbo/vbo.h"

+#include "drivers/common/driverfuncs.h"

+#include "drivers/common/meta.h"

+#include "utils.h"

+

+#include "main/teximage.h"

+#include "main/texformat.h"

+#include "main/texstate.h"

+

+#include "swrast_priv.h"

+

+

+/**

+ * Screen and config-related functions

+ */

+

+static void swrastSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,

+				GLint texture_format, __DRIdrawable *dPriv)

+{

+    struct dri_context *dri_ctx;

+    int x, y, w, h;

+    __DRIscreen *sPriv = dPriv->driScreenPriv;

+    struct gl_texture_unit *texUnit;

+    struct gl_texture_object *texObj;

+    struct gl_texture_image *texImage;

+    uint32_t internalFormat;

+    gl_format texFormat;

+

+    dri_ctx = pDRICtx->driverPrivate;

+

+    internalFormat = (texture_format == __DRI_TEXTURE_FORMAT_RGB ? 3 : 4);

+

+    texUnit = _mesa_get_current_tex_unit(&dri_ctx->Base);

+    texObj = _mesa_select_tex_object(&dri_ctx->Base, texUnit, target);

+    texImage = _mesa_get_tex_image(&dri_ctx->Base, texObj, target, 0);

+

+    _mesa_lock_texture(&dri_ctx->Base, texObj);

+

+    sPriv->swrast_loader->getDrawableInfo(dPriv, &x, &y, &w, &h, dPriv->loaderPrivate);

+

+    if (texture_format == __DRI_TEXTURE_FORMAT_RGB)

+	texFormat = MESA_FORMAT_XRGB8888;

+    else

+	texFormat = MESA_FORMAT_ARGB8888;

+

+    _mesa_init_teximage_fields(&dri_ctx->Base, target, texImage,

+			       w, h, 1, 0, internalFormat, texFormat);

+

+    sPriv->swrast_loader->getImage(dPriv, x, y, w, h, (char *)texImage->Data,

+				   dPriv->loaderPrivate);

+

+    _mesa_unlock_texture(&dri_ctx->Base, texObj);

+}

+

+static void swrastSetTexBuffer(__DRIcontext *pDRICtx, GLint target,

+			       __DRIdrawable *dPriv)

+{

+    swrastSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);

+}

+

+static const __DRItexBufferExtension swrastTexBufferExtension = {

+    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },

+    swrastSetTexBuffer,

+    swrastSetTexBuffer2,

+};

+

+static const __DRIextension *dri_screen_extensions[] = {

+    &swrastTexBufferExtension.base,

+    NULL

+};

+

+static __DRIconfig **

+swrastFillInModes(__DRIscreen *psp,

+		  unsigned pixel_bits, unsigned depth_bits,

+		  unsigned stencil_bits, GLboolean have_back_buffer)

+{

+    __DRIconfig **configs;

+    unsigned depth_buffer_factor;

+    unsigned back_buffer_factor;

+    GLenum fb_format;

+    GLenum fb_type;

+

+    /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't

+     * support pageflipping at all.

+     */

+    static const GLenum back_buffer_modes[] = {

+	GLX_NONE, GLX_SWAP_UNDEFINED_OML

+    };

+

+    uint8_t depth_bits_array[4];

+    uint8_t stencil_bits_array[4];

+    uint8_t msaa_samples_array[1];

+

+    depth_bits_array[0] = 0;

+    depth_bits_array[1] = 0;

+    depth_bits_array[2] = depth_bits;

+    depth_bits_array[3] = depth_bits;

+

+    /* Just like with the accumulation buffer, always provide some modes

+     * with a stencil buffer.

+     */

+    stencil_bits_array[0] = 0;

+    stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;

+    stencil_bits_array[2] = 0;

+    stencil_bits_array[3] = (stencil_bits == 0) ? 8 : stencil_bits;

+

+    msaa_samples_array[0] = 0;

+

+    depth_buffer_factor = 4;

+    back_buffer_factor = 2;

+

+    switch (pixel_bits) {

+    case 8:

+	fb_format = GL_RGB;

+	fb_type = GL_UNSIGNED_BYTE_2_3_3_REV;

+	break;

+    case 16:

+	fb_format = GL_RGB;

+	fb_type = GL_UNSIGNED_SHORT_5_6_5;

+	break;

+    case 24:

+	fb_format = GL_BGR;

+	fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;

+	break;

+    case 32:

+	fb_format = GL_BGRA;

+	fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;

+	break;

+    default:

+	fprintf(stderr, "[%s:%u] bad depth %d\n", __FUNCTION__, __LINE__,

+		pixel_bits);

+	return NULL;

+    }

+

+    configs = driCreateConfigs(fb_format, fb_type,

+			       depth_bits_array, stencil_bits_array,

+			       depth_buffer_factor, back_buffer_modes,

+			       back_buffer_factor, msaa_samples_array, 1,

+			       GL_TRUE);

+    if (configs == NULL) {

+	fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __FUNCTION__,

+		__LINE__);

+	return NULL;

+    }

+

+    return configs;

+}

+

+static const __DRIconfig **

+dri_init_screen(__DRIscreen * psp)

+{

+    __DRIconfig **configs8, **configs16, **configs24, **configs32;

+

+    TRACE;

+

+    psp->extensions = dri_screen_extensions;

+

+    configs8  = swrastFillInModes(psp,  8,  8, 0, 1);

+    configs16 = swrastFillInModes(psp, 16, 16, 0, 1);

+    configs24 = swrastFillInModes(psp, 24, 24, 8, 1);

+    configs32 = swrastFillInModes(psp, 32, 24, 8, 1);

+

+    configs16 = driConcatConfigs(configs8, configs16);

+    configs24 = driConcatConfigs(configs16, configs24);

+    configs32 = driConcatConfigs(configs24, configs32);

+

+    return (const __DRIconfig **)configs32;

+}

+

+static void

+dri_destroy_screen(__DRIscreen * sPriv)

+{

+    TRACE;

+}

+

+

+/**

+ * Framebuffer and renderbuffer-related functions.

+ */

+

+static GLuint

+choose_pixel_format(const struct gl_config *v)

+{

+    int depth = v->rgbBits;

+

+    if (depth == 32

+	&& v->redMask   == 0xff0000

+	&& v->greenMask == 0x00ff00

+	&& v->blueMask  == 0x0000ff)

+	return PF_A8R8G8B8;

+    else if (depth == 24

+	     && v->redMask   == 0xff0000

+	     && v->greenMask == 0x00ff00

+	     && v->blueMask  == 0x0000ff)

+	return PF_X8R8G8B8;

+    else if (depth == 16

+	     && v->redMask   == 0xf800

+	     && v->greenMask == 0x07e0

+	     && v->blueMask  == 0x001f)

+	return PF_R5G6B5;

+    else if (depth == 8

+	     && v->redMask   == 0x07

+	     && v->greenMask == 0x38

+	     && v->blueMask  == 0xc0)

+	return PF_R3G3B2;

+

+    _mesa_problem( NULL, "unexpected format in %s", __FUNCTION__ );

+    return 0;

+}

+

+static void

+swrast_delete_renderbuffer(struct gl_renderbuffer *rb)

+{

+    TRACE;

+

+    free(rb->Data);

+    free(rb);

+}

+

+/* see bytes_per_line in libGL */

+static INLINE int

+bytes_per_line(unsigned pitch_bits, unsigned mul)

+{

+   unsigned mask = mul - 1;

+

+   return ((pitch_bits + mask) & ~mask) / 8;

+}

+

+static GLboolean

+swrast_alloc_front_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,

+			   GLenum internalFormat, GLuint width, GLuint height)

+{

+    struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);

+

+    TRACE;

+

+    rb->Data = NULL;

+    rb->Width = width;

+    rb->Height = height;

+

+    xrb->pitch = bytes_per_line(width * xrb->bpp, 32);

+

+    return GL_TRUE;

+}

+

+static GLboolean

+swrast_alloc_back_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,

+			  GLenum internalFormat, GLuint width, GLuint height)

+{

+    struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);

+

+    TRACE;

+

+    free(rb->Data);

+

+    swrast_alloc_front_storage(ctx, rb, internalFormat, width, height);

+

+    rb->Data = malloc(height * xrb->pitch);

+

+    return GL_TRUE;

+}

+

+static struct swrast_renderbuffer *

+swrast_new_renderbuffer(const struct gl_config *visual, GLboolean front)

+{

+    struct swrast_renderbuffer *xrb = calloc(1, sizeof *xrb);

+    GLuint pixel_format;

+

+    TRACE;

+

+    if (!xrb)

+	return NULL;

+

+    _mesa_init_renderbuffer(&xrb->Base, 0);

+

+    pixel_format = choose_pixel_format(visual);

+

+    xrb->Base.Delete = swrast_delete_renderbuffer;

+    if (front) {

+	xrb->Base.AllocStorage = swrast_alloc_front_storage;

+	swrast_set_span_funcs_front(xrb, pixel_format);

+    }

+    else {

+	xrb->Base.AllocStorage = swrast_alloc_back_storage;

+	swrast_set_span_funcs_back(xrb, pixel_format);

+    }

+

+    switch (pixel_format) {

+    case PF_A8R8G8B8:

+	xrb->Base.Format = MESA_FORMAT_ARGB8888;

+	xrb->Base.InternalFormat = GL_RGBA;

+	xrb->Base._BaseFormat = GL_RGBA;

+	xrb->Base.DataType = GL_UNSIGNED_BYTE;

+	xrb->bpp = 32;

+	break;

+    case PF_X8R8G8B8:

+	xrb->Base.Format = MESA_FORMAT_ARGB8888; /* XXX */

+	xrb->Base.InternalFormat = GL_RGB;

+	xrb->Base._BaseFormat = GL_RGB;

+	xrb->Base.DataType = GL_UNSIGNED_BYTE;

+	xrb->bpp = 32;

+	break;

+    case PF_R5G6B5:

+	xrb->Base.Format = MESA_FORMAT_RGB565;

+	xrb->Base.InternalFormat = GL_RGB;

+	xrb->Base._BaseFormat = GL_RGB;

+	xrb->Base.DataType = GL_UNSIGNED_BYTE;

+	xrb->bpp = 16;

+	break;

+    case PF_R3G3B2:

+	xrb->Base.Format = MESA_FORMAT_RGB332;

+	xrb->Base.InternalFormat = GL_RGB;

+	xrb->Base._BaseFormat = GL_RGB;

+	xrb->Base.DataType = GL_UNSIGNED_BYTE;

+	xrb->bpp = 8;

+	break;

+    default:

+	return NULL;

+    }

+

+    return xrb;

+}

+

+static GLboolean

+dri_create_buffer(__DRIscreen * sPriv,

+		  __DRIdrawable * dPriv,

+		  const struct gl_config * visual, GLboolean isPixmap)

+{

+    struct dri_drawable *drawable = NULL;

+    struct gl_framebuffer *fb;

+    struct swrast_renderbuffer *frontrb, *backrb;

+

+    TRACE;

+

+    drawable = CALLOC_STRUCT(dri_drawable);

+    if (drawable == NULL)

+	goto drawable_fail;

+

+    dPriv->driverPrivate = drawable;

+    drawable->dPriv = dPriv;

+

+    drawable->row = malloc(MAX_WIDTH * 4);

+    if (drawable->row == NULL)

+	goto drawable_fail;

+

+    fb = &drawable->Base;

+

+    /* basic framebuffer setup */

+    _mesa_initialize_window_framebuffer(fb, visual);

+

+    /* add front renderbuffer */

+    frontrb = swrast_new_renderbuffer(visual, GL_TRUE);

+    _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontrb->Base);

+

+    /* add back renderbuffer */

+    if (visual->doubleBufferMode) {

+	backrb = swrast_new_renderbuffer(visual, GL_FALSE);

+	_mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backrb->Base);

+    }

+

+    /* add software renderbuffers */

+    _mesa_add_soft_renderbuffers(fb,

+				 GL_FALSE, /* color */

+				 visual->haveDepthBuffer,

+				 visual->haveStencilBuffer,

+				 visual->haveAccumBuffer,

+				 GL_FALSE, /* alpha */

+				 GL_FALSE /* aux bufs */);

+

+    return GL_TRUE;

+

+drawable_fail:

+

+    if (drawable)

+	free(drawable->row);

+

+    FREE(drawable);

+

+    return GL_FALSE;

+}

+

+static void

+dri_destroy_buffer(__DRIdrawable * dPriv)

+{

+    TRACE;

+

+    if (dPriv) {

+	struct dri_drawable *drawable = dri_drawable(dPriv);

+	struct gl_framebuffer *fb;

+

+	free(drawable->row);

+

+	fb = &drawable->Base;

+

+	fb->DeletePending = GL_TRUE;

+	_mesa_reference_framebuffer(&fb, NULL);

+    }

+}

+

+static void

+dri_swap_buffers(__DRIdrawable * dPriv)

+{

+    __DRIscreen *sPriv = dPriv->driScreenPriv;

+

+    GET_CURRENT_CONTEXT(ctx);

+

+    struct dri_drawable *drawable = dri_drawable(dPriv);

+    struct gl_framebuffer *fb;

+    struct swrast_renderbuffer *frontrb, *backrb;

+

+    TRACE;

+

+    fb = &drawable->Base;

+

+    frontrb =

+	swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);

+    backrb =

+	swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);

+

+    /* check for signle-buffered */

+    if (backrb == NULL)

+	return;

+

+    /* check if swapping currently bound buffer */

+    if (ctx && ctx->DrawBuffer == fb) {

+	/* flush pending rendering */

+	_mesa_notifySwapBuffers(ctx);

+    }

+

+    sPriv->swrast_loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,

+				   0, 0,

+				   frontrb->Base.Width,

+				   frontrb->Base.Height,

+				   backrb->Base.Data,

+				   dPriv->loaderPrivate);

+}

+

+

+/**

+ * General device driver functions.

+ */

+

+static void

+get_window_size( struct gl_framebuffer *fb, GLsizei *w, GLsizei *h )

+{

+    __DRIdrawable *dPriv = swrast_drawable(fb)->dPriv;

+    __DRIscreen *sPriv = dPriv->driScreenPriv;

+    int x, y;

+

+    sPriv->swrast_loader->getDrawableInfo(dPriv,

+					  &x, &y, w, h,

+					  dPriv->loaderPrivate);

+}

+

+static void

+swrast_check_and_update_window_size( struct gl_context *ctx, struct gl_framebuffer *fb )

+{

+    GLsizei width, height;

+

+    get_window_size(fb, &width, &height);

+    if (fb->Width != width || fb->Height != height) {

+	_mesa_resize_framebuffer(ctx, fb, width, height);

+    }

+}

+

+static const GLubyte *

+get_string(struct gl_context *ctx, GLenum pname)

+{

+    (void) ctx;

+    switch (pname) {

+	case GL_VENDOR:

+	    return (const GLubyte *) "Mesa Project";

+	case GL_RENDERER:

+	    return (const GLubyte *) "Software Rasterizer";

+	default:

+	    return NULL;

+    }

+}

+

+static void

+update_state( struct gl_context *ctx, GLuint new_state )

+{

+    /* not much to do here - pass it on */

+    _swrast_InvalidateState( ctx, new_state );

+    _swsetup_InvalidateState( ctx, new_state );

+    _vbo_InvalidateState( ctx, new_state );

+    _tnl_InvalidateState( ctx, new_state );

+}

+

+static void

+viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)

+{

+    struct gl_framebuffer *draw = ctx->WinSysDrawBuffer;

+    struct gl_framebuffer *read = ctx->WinSysReadBuffer;

+

+    swrast_check_and_update_window_size(ctx, draw);

+    swrast_check_and_update_window_size(ctx, read);

+}

+

+static gl_format swrastChooseTextureFormat(struct gl_context * ctx,

+					   GLint internalFormat,

+					   GLenum format,

+					   GLenum type)

+{

+    if (internalFormat == GL_RGB)

+	return MESA_FORMAT_XRGB8888;

+    return _mesa_choose_tex_format(ctx, internalFormat, format, type);

+}

+

+static void

+swrast_init_driver_functions(struct dd_function_table *driver)

+{

+    driver->GetString = get_string;

+    driver->UpdateState = update_state;

+    driver->GetBufferSize = NULL;

+    driver->Viewport = viewport;

+    driver->ChooseTextureFormat = swrastChooseTextureFormat;

+}

+

+static const char *es2_extensions[] = {

+   /* Used by mesa internally (cf all_mesa_extensions in ../common/utils.c) */

+   "GL_ARB_draw_buffers",

+   "GL_ARB_multisample",

+   "GL_ARB_texture_compression",

+   "GL_ARB_transpose_matrix",

+   "GL_ARB_vertex_buffer_object",

+   "GL_ARB_window_pos",

+   "GL_EXT_blend_func_separate",

+   "GL_EXT_compiled_vertex_array",

+   "GL_EXT_framebuffer_blit",

+   "GL_EXT_multi_draw_arrays",

+   "GL_EXT_polygon_offset",

+   "GL_EXT_texture_object",

+   "GL_EXT_vertex_array",

+   "GL_IBM_multimode_draw_arrays",

+   "GL_MESA_window_pos",

+   "GL_NV_vertex_program",

+

+   /* Required by GLES2 */

+   "GL_ARB_fragment_program",

+   "GL_ARB_fragment_shader",

+   "GL_ARB_multitexture",

+   "GL_ARB_shader_objects",

+   "GL_ARB_texture_cube_map",

+   "GL_ARB_texture_mirrored_repeat",

+   "GL_ARB_texture_non_power_of_two",

+   "GL_ARB_vertex_shader",

+   "GL_EXT_blend_color",

+   "GL_EXT_blend_equation_separate",

+   "GL_EXT_blend_minmax",

+   "GL_EXT_blend_subtract",

+   "GL_EXT_stencil_wrap",

+

+   /* Optional GLES2 */

+   "GL_ARB_framebuffer_object",

+   "GL_EXT_texture_filter_anisotropic",

+   "GL_ARB_depth_texture",

+   "GL_EXT_packed_depth_stencil",

+   "GL_EXT_framebuffer_object",

+   NULL,

+};

+

+static void

+InitExtensionsES2(struct gl_context *ctx)

+{

+   int i;

+

+   /* Can't use driInitExtensions() since it uses extensions from

+    * main/remap_helper.h when called the first time. */

+

+   for (i = 0; es2_extensions[i]; i++)

+      _mesa_enable_extension(ctx, es2_extensions[i]);

+}

+

+/**

+ * Context-related functions.

+ */

+

+static GLboolean

+dri_create_context(gl_api api,

+		   const struct gl_config * visual,

+		   __DRIcontext * cPriv, void *sharedContextPrivate)

+{

+    struct dri_context *ctx = NULL;

+    struct dri_context *share = (struct dri_context *)sharedContextPrivate;

+    struct gl_context *mesaCtx = NULL;

+    struct gl_context *sharedCtx = NULL;

+    struct dd_function_table functions;

+

+    TRACE;

+

+    ctx = CALLOC_STRUCT(dri_context);

+    if (ctx == NULL)

+	goto context_fail;

+

+    cPriv->driverPrivate = ctx;

+    ctx->cPriv = cPriv;

+

+    /* build table of device driver functions */

+    _mesa_init_driver_functions(&functions);

+    swrast_init_driver_functions(&functions);

+

+    if (share) {

+	sharedCtx = &share->Base;

+    }

+

+    mesaCtx = &ctx->Base;

+

+    /* basic context setup */

+    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {

+	goto context_fail;

+    }

+

+    /* do bounds checking to prevent segfaults and server crashes! */

+    mesaCtx->Const.CheckArrayBounds = GL_TRUE;

+

+    /* create module contexts */

+    _swrast_CreateContext( mesaCtx );

+    _vbo_CreateContext( mesaCtx );

+    _tnl_CreateContext( mesaCtx );

+    _swsetup_CreateContext( mesaCtx );

+    _swsetup_Wakeup( mesaCtx );

+

+    /* use default TCL pipeline */

+    {

+       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);

+       tnl->Driver.RunPipeline = _tnl_run_pipeline;

+    }

+

+    _mesa_meta_init(mesaCtx);

+    _mesa_enable_sw_extensions(mesaCtx);

+

+    switch (api) {

+    case API_OPENGL:

+        _mesa_enable_1_3_extensions(mesaCtx);

+        _mesa_enable_1_4_extensions(mesaCtx);

+        _mesa_enable_1_5_extensions(mesaCtx);

+        _mesa_enable_2_0_extensions(mesaCtx);

+        _mesa_enable_2_1_extensions(mesaCtx);

+

+        driInitExtensions( mesaCtx, NULL, GL_FALSE );

+        break;

+    case API_OPENGLES:

+        _mesa_enable_1_3_extensions(mesaCtx);

+        _mesa_enable_1_4_extensions(mesaCtx);

+        _mesa_enable_1_5_extensions(mesaCtx);

+

+        break;

+    case API_OPENGLES2:

+        InitExtensionsES2( mesaCtx);

+        break;

+    }

+

+    return GL_TRUE;

+

+context_fail:

+

+    FREE(ctx);

+

+    return GL_FALSE;

+}

+

+static void

+dri_destroy_context(__DRIcontext * cPriv)

+{

+    TRACE;

+

+    if (cPriv) {

+	struct dri_context *ctx = dri_context(cPriv);

+	struct gl_context *mesaCtx;

+

+	mesaCtx = &ctx->Base;

+

+        _mesa_meta_free(mesaCtx);

+	_swsetup_DestroyContext( mesaCtx );

+	_swrast_DestroyContext( mesaCtx );

+	_tnl_DestroyContext( mesaCtx );

+	_vbo_DestroyContext( mesaCtx );

+	_mesa_destroy_context( mesaCtx );

+    }

+}

+

+static GLboolean

+dri_make_current(__DRIcontext * cPriv,

+		 __DRIdrawable * driDrawPriv,

+		 __DRIdrawable * driReadPriv)

+{

+    struct gl_context *mesaCtx;

+    struct gl_framebuffer *mesaDraw;

+    struct gl_framebuffer *mesaRead;

+    TRACE;

+

+    if (cPriv) {

+	struct dri_context *ctx = dri_context(cPriv);

+	struct dri_drawable *draw;

+	struct dri_drawable *read;

+

+	if (!driDrawPriv || !driReadPriv)

+	    return GL_FALSE;

+

+	draw = dri_drawable(driDrawPriv);

+	read = dri_drawable(driReadPriv);

+	mesaCtx = &ctx->Base;

+	mesaDraw = &draw->Base;

+	mesaRead = &read->Base;

+

+	/* check for same context and buffer */

+	if (mesaCtx == _mesa_get_current_context()

+	    && mesaCtx->DrawBuffer == mesaDraw

+	    && mesaCtx->ReadBuffer == mesaRead) {

+	    return GL_TRUE;

+	}

+

+	_glapi_check_multithread();

+

+	swrast_check_and_update_window_size(mesaCtx, mesaDraw);

+	if (mesaRead != mesaDraw)

+	    swrast_check_and_update_window_size(mesaCtx, mesaRead);

+

+	_mesa_make_current( mesaCtx,

+			    mesaDraw,

+			    mesaRead );

+    }

+    else {

+	/* unbind */

+	_mesa_make_current( NULL, NULL, NULL );

+    }

+

+    return GL_TRUE;

+}

+

+static GLboolean

+dri_unbind_context(__DRIcontext * cPriv)

+{

+    TRACE;

+    (void) cPriv;

+

+    /* Unset current context and dispath table */

+    _mesa_make_current(NULL, NULL, NULL);

+

+    return GL_TRUE;

+}

+

+

+const struct __DriverAPIRec driDriverAPI = {

+    /*.InitScreen = */dri_init_screen,

+    /*.DestroyScreen = */dri_destroy_screen,

+    /*.CreateContext = */dri_create_context,

+    /*.DestroyContext = */dri_destroy_context,

+    /*.CreateBuffer = */dri_create_buffer,

+    /*.DestroyBuffer = */dri_destroy_buffer,

+    /*.SwapBuffers = */dri_swap_buffers,

+    /*.MakeCurrent = */dri_make_current,

+    /*.UnbindContext = */dri_unbind_context,

+};

+

+/* This is the table of extensions that the loader will dlsym() for. */

+PUBLIC const __DRIextension *__driDriverExtensions[] = {

+    &driCoreExtension.base,

+    &driSWRastExtension.base,

+    NULL

+};

diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h b/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
index 4c3c9830f..e61965147 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
@@ -32,6 +32,13 @@
 #include "main/mtypes.h"

 #include "drisw_util.h"

 

+#ifdef _MSC_VER

+#ifdef PUBLIC

+#undef PUBLIC

+#endif

+#define PUBLIC __declspec(dllexport)

+#endif

+

 

 /**

  * Debugging

diff --git a/mesalib/src/mesa/drivers/windows/gdi/wmesa.c b/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
index 4a8b1b283..1a13e9f5c 100644
--- a/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
+++ b/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
@@ -1,1662 +1,1662 @@
-/*
- * Windows (Win32/Win64) device driver for Mesa
- *
- */
-
-#include "wmesadef.h"
-#include "colors.h"
-#include <GL/wmesa.h>
-#include <winuser.h>
-#include "context.h"
-#include "extensions.h"
-#include "framebuffer.h"
-#include "renderbuffer.h"
-#include "drivers/common/driverfuncs.h"
-#include "drivers/common/meta.h"
-#include "vbo/vbo.h"
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
-
-
-/* linked list of our Framebuffers (windows) */
-static WMesaFramebuffer FirstFramebuffer = NULL;
-
-
-/**
- * Create a new WMesaFramebuffer object which will correspond to the
- * given HDC (Window handle).
- */
-WMesaFramebuffer
-wmesa_new_framebuffer(HDC hdc, struct gl_config *visual)
-{
-    WMesaFramebuffer pwfb
-        = (WMesaFramebuffer) malloc(sizeof(struct wmesa_framebuffer));
-    if (pwfb) {
-        _mesa_initialize_window_framebuffer(&pwfb->Base, visual);
-        pwfb->hDC = hdc;
-        /* insert at head of list */
-        pwfb->next = FirstFramebuffer;
-        FirstFramebuffer = pwfb;
-    }
-    return pwfb;
-}
-
-/**
- * Given an hdc, free the corresponding WMesaFramebuffer
- */
-void
-wmesa_free_framebuffer(HDC hdc)
-{
-    WMesaFramebuffer pwfb, prev;
-    for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {
-        if (pwfb->hDC == hdc)
-            break;
-	prev = pwfb;
-    }
-    if (pwfb) {
-        struct gl_framebuffer *fb;
-	if (pwfb == FirstFramebuffer)
-	    FirstFramebuffer = pwfb->next;
-	else
-	    prev->next = pwfb->next;
-        fb = &pwfb->Base;
-        _mesa_reference_framebuffer(&fb, NULL); 
-    }
-}
-
-/**
- * Given an hdc, return the corresponding WMesaFramebuffer
- */
-WMesaFramebuffer
-wmesa_lookup_framebuffer(HDC hdc)
-{
-    WMesaFramebuffer pwfb;
-    for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {
-        if (pwfb->hDC == hdc)
-            return pwfb;
-    }
-    return NULL;
-}
-
-
-/**
- * Given a struct gl_framebuffer, return the corresponding WMesaFramebuffer.
- */
-static WMesaFramebuffer wmesa_framebuffer(struct gl_framebuffer *fb)
-{
-    return (WMesaFramebuffer) fb;
-}
-
-
-/**
- * Given a struct gl_context, return the corresponding WMesaContext.
- */
-static WMesaContext wmesa_context(const struct gl_context *ctx)
-{
-    return (WMesaContext) ctx;
-}
-
-
-/*
- * Every driver should implement a GetString function in order to
- * return a meaningful GL_RENDERER string.
- */
-static const GLubyte *wmesa_get_string(struct gl_context *ctx, GLenum name)
-{
-    return (name == GL_RENDERER) ? 
-	(GLubyte *) "Mesa Windows GDI Driver" : NULL;
-}
-
-
-/*
- * Determine the pixel format based on the pixel size.
- */
-static void wmSetPixelFormat(WMesaFramebuffer pwfb, HDC hDC)
-{
-    pwfb->cColorBits = GetDeviceCaps(hDC, BITSPIXEL);
-
-    /* Only 16 and 32 bit targets are supported now */
-    assert(pwfb->cColorBits == 0 ||
-	   pwfb->cColorBits == 16 || 
-	   pwfb->cColorBits == 24 || 
-	   pwfb->cColorBits == 32);
-
-    switch(pwfb->cColorBits){
-    case 8:
-	pwfb->pixelformat = PF_INDEX8;
-	break;
-    case 16:
-	pwfb->pixelformat = PF_5R6G5B;
-	break;
-    case 24:
-    case 32:
-	pwfb->pixelformat = PF_8R8G8B;
-	break;
-    default:
-	pwfb->pixelformat = PF_BADFORMAT;
-    }
-}
-
-
-/**
- * Create DIB for back buffer.
- * We write into this memory with the span routines and then blit it
- * to the window on a buffer swap.
- */
-BOOL wmCreateBackingStore(WMesaFramebuffer pwfb, long lxSize, long lySize)
-{
-    HDC          hdc = pwfb->hDC;
-    LPBITMAPINFO pbmi = &(pwfb->bmi);
-    HDC          hic;
-
-    pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
-    pbmi->bmiHeader.biWidth = lxSize;
-    pbmi->bmiHeader.biHeight= -lySize;
-    pbmi->bmiHeader.biPlanes = 1;
-    pbmi->bmiHeader.biBitCount = GetDeviceCaps(pwfb->hDC, BITSPIXEL);
-    pbmi->bmiHeader.biCompression = BI_RGB;
-    pbmi->bmiHeader.biSizeImage = 0;
-    pbmi->bmiHeader.biXPelsPerMeter = 0;
-    pbmi->bmiHeader.biYPelsPerMeter = 0;
-    pbmi->bmiHeader.biClrUsed = 0;
-    pbmi->bmiHeader.biClrImportant = 0;
-    
-    pwfb->cColorBits = pbmi->bmiHeader.biBitCount;
-    pwfb->ScanWidth = (lxSize * (pwfb->cColorBits / 8) + 3) & ~3;
-    
-    hic = CreateIC("display", NULL, NULL, NULL);
-    pwfb->dib_hDC = CreateCompatibleDC(hic);
-    
-    pwfb->hbmDIB = CreateDIBSection(hic,
-				   &pwfb->bmi,
-				   DIB_RGB_COLORS,
-				   (void **)&(pwfb->pbPixels),
-				   0,
-				   0);
-    pwfb->hOldBitmap = SelectObject(pwfb->dib_hDC, pwfb->hbmDIB);
-    
-    DeleteDC(hic);
-
-    wmSetPixelFormat(pwfb, pwfb->hDC);
-    return TRUE;
-}
-
-
-static wmDeleteBackingStore(WMesaFramebuffer pwfb)
-{
-    if (pwfb->hbmDIB) {
-	SelectObject(pwfb->dib_hDC, pwfb->hOldBitmap);
-	DeleteDC(pwfb->dib_hDC);
-	DeleteObject(pwfb->hbmDIB);
-    }
-}
-
-
-/**
- * Find the width and height of the window named by hdc.
- */
-static void
-get_window_size(HDC hdc, GLuint *width, GLuint *height)
-{
-    if (WindowFromDC(hdc)) {
-        RECT rect;
-        GetClientRect(WindowFromDC(hdc), &rect);
-        *width = rect.right - rect.left;
-        *height = rect.bottom - rect.top;
-    }
-    else { /* Memory context */
-        /* From contributed code - use the size of the desktop
-         * for the size of a memory context (?) */
-        *width = GetDeviceCaps(hdc, HORZRES);
-        *height = GetDeviceCaps(hdc, VERTRES);
-    }
-}
-
-
-static void
-wmesa_get_buffer_size(struct gl_framebuffer *buffer, GLuint *width, GLuint *height)
-{
-    WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);
-    get_window_size(pwfb->hDC, width, height);
-}
-
-
-static void wmesa_flush(struct gl_context *ctx)
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->WinSysDrawBuffer);
-
-    if (ctx->Visual.doubleBufferMode == 1) {
-	BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,
-	       pwfb->dib_hDC, 0, 0, SRCCOPY);
-    }
-    else {
-	/* Do nothing for single buffer */
-    }
-}
-
-
-/**********************************************************************/
-/*****                   CLEAR Functions                          *****/
-/**********************************************************************/
-
-/* If we do not implement these, Mesa clears the buffers via the pixel
- * span writing interface, which is very slow for a clear operation.
- */
-
-/*
- * Set the color used to clear the color buffer.
- */
-static void clear_color(struct gl_context *ctx, const GLfloat color[4])
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLubyte col[3];
-    UINT    bytesPerPixel = pwfb->cColorBits / 8; 
-
-    CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
-    CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
-    CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
-    pwc->clearColorRef = RGB(col[0], col[1], col[2]);
-    DeleteObject(pwc->clearPen);
-    DeleteObject(pwc->clearBrush);
-    pwc->clearPen = CreatePen(PS_SOLID, 1, pwc->clearColorRef); 
-    pwc->clearBrush = CreateSolidBrush(pwc->clearColorRef); 
-}
-
-
-/* 
- * Clear the specified region of the color buffer using the clear color 
- * or index as specified by one of the two functions above. 
- * 
- * This procedure clears either the front and/or the back COLOR buffers. 
- * Only the "left" buffer is cleared since we are not stereo. 
- * Clearing of the other non-color buffers is left to the swrast. 
- */ 
-
-static void clear(struct gl_context *ctx, GLbitfield mask)
-{
-#define FLIP(Y)  (ctx->DrawBuffer->Height - (Y) - 1)
-    const GLint x = ctx->DrawBuffer->_Xmin;
-    const GLint y = ctx->DrawBuffer->_Ymin;
-    const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
-    const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
-
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    int done = 0;
-
-    /* Let swrast do all the work if the masks are not set to
-     * clear all channels. */
-    if (!ctx->Color.ColorMask[0][0] ||
-	!ctx->Color.ColorMask[0][1] ||
-	!ctx->Color.ColorMask[0][2] ||
-	!ctx->Color.ColorMask[0][3]) {
-	_swrast_Clear(ctx, mask);
-	return;
-    }
-
-    /* Back buffer */
-    if (mask & BUFFER_BIT_BACK_LEFT) { 
-	
-	int     i, rowSize; 
-	UINT    bytesPerPixel = pwfb->cColorBits / 8; 
-	LPBYTE  lpb, clearRow;
-	LPWORD  lpw;
-	BYTE    bColor; 
-	WORD    wColor; 
-	BYTE    r, g, b; 
-	DWORD   dwColor; 
-	LPDWORD lpdw; 
-	
-	/* Try for a fast clear - clearing entire buffer with a single
-	 * byte value. */
-	if (width == ctx->DrawBuffer->Width &&
-            height == ctx->DrawBuffer->Height) { /* entire buffer */
-	    /* Now check for an easy clear value */
-	    switch (bytesPerPixel) {
-	    case 1:
-		bColor = BGR8(GetRValue(pwc->clearColorRef), 
-			      GetGValue(pwc->clearColorRef), 
-			      GetBValue(pwc->clearColorRef));
-		memset(pwfb->pbPixels, bColor, 
-		       pwfb->ScanWidth * height);
-		done = 1;
-		break;
-	    case 2:
-		wColor = BGR16(GetRValue(pwc->clearColorRef), 
-			       GetGValue(pwc->clearColorRef), 
-			       GetBValue(pwc->clearColorRef)); 
-		if (((wColor >> 8) & 0xff) == (wColor & 0xff)) {
-		    memset(pwfb->pbPixels, wColor & 0xff, 
-			   pwfb->ScanWidth * height);
-		    done = 1;
-		}
-		break;
-	    case 3:
-		/* fall through */
-	    case 4:
-		if (GetRValue(pwc->clearColorRef) == 
-		    GetGValue(pwc->clearColorRef) &&
-		    GetRValue(pwc->clearColorRef) == 
-		    GetBValue(pwc->clearColorRef)) {
-		    memset(pwfb->pbPixels, 
-			   GetRValue(pwc->clearColorRef), 
-			   pwfb->ScanWidth * height);
-		    done = 1;
-		}
-		break;
-	    default:
-		break;
-	    }
-	} /* all */
-
-	if (!done) {
-	    /* Need to clear a row at a time.  Begin by setting the first
-	     * row in the area to be cleared to the clear color. */
-	    
-	    clearRow = pwfb->pbPixels + 
-		pwfb->ScanWidth * FLIP(y) +
-		bytesPerPixel * x; 
-	    switch (bytesPerPixel) {
-	    case 1:
-		lpb = clearRow;
-		bColor = BGR8(GetRValue(pwc->clearColorRef), 
-			      GetGValue(pwc->clearColorRef), 
-			      GetBValue(pwc->clearColorRef));
-		memset(lpb, bColor, width);
-		break;
-	    case 2:
-		lpw = (LPWORD)clearRow;
-		wColor = BGR16(GetRValue(pwc->clearColorRef), 
-			       GetGValue(pwc->clearColorRef), 
-			       GetBValue(pwc->clearColorRef)); 
-		for (i=0; i<width; i++)
-		    *lpw++ = wColor;
-		break;
-	    case 3: 
-		lpb = clearRow;
-		r = GetRValue(pwc->clearColorRef); 
-		g = GetGValue(pwc->clearColorRef); 
-		b = GetBValue(pwc->clearColorRef); 
-		for (i=0; i<width; i++) {
-		    *lpb++ = b; 
-		    *lpb++ = g; 
-		    *lpb++ = r; 
-		} 
-		break;
-	    case 4: 
-		lpdw = (LPDWORD)clearRow; 
-		dwColor = BGR32(GetRValue(pwc->clearColorRef), 
-				GetGValue(pwc->clearColorRef), 
-				GetBValue(pwc->clearColorRef)); 
-		for (i=0; i<width; i++)
-		    *lpdw++ = dwColor;
-		break;
-	    default:
-		break;
-	    } /* switch */
-	    
-	    /* copy cleared row to other rows in buffer */
-	    lpb = clearRow - pwfb->ScanWidth;
-	    rowSize = width * bytesPerPixel;
-	    for (i=1; i<height; i++) { 
-		memcpy(lpb, clearRow, rowSize); 
-		lpb -= pwfb->ScanWidth; 
-	    } 
-	} /* not done */
-	mask &= ~BUFFER_BIT_BACK_LEFT;
-    } /* back buffer */ 
-
-    /* front buffer */
-    if (mask & BUFFER_BIT_FRONT_LEFT) { 
-	HDC DC = pwc->hDC; 
-	HPEN Old_Pen = SelectObject(DC, pwc->clearPen); 
-	HBRUSH Old_Brush = SelectObject(DC, pwc->clearBrush);
-	Rectangle(DC,
-		  x,
-		  FLIP(y) + 1,
-		  x + width + 1,
-		  FLIP(y) - height + 1);
-	SelectObject(DC, Old_Pen); 
-	SelectObject(DC, Old_Brush); 
-	mask &= ~BUFFER_BIT_FRONT_LEFT;
-    } /* front buffer */ 
-    
-    /* Call swrast if there is anything left to clear (like DEPTH) */ 
-    if (mask) 
-	_swrast_Clear(ctx, mask);
-  
-#undef FLIP
-} 
-
-
-/**********************************************************************/
-/*****                   PIXEL Functions                          *****/
-/**********************************************************************/
-
-#define FLIP(Y)  (rb->Height - (Y) - 1)
-
-
-/**
- ** Front Buffer reading/writing
- ** These are slow, but work with all non-indexed visual types.
- **/
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_front(const struct gl_context *ctx, 
-				   struct gl_renderbuffer *rb, 
-				   GLuint n, GLint x, GLint y,
-				   const GLubyte rgba[][4], 
-				   const GLubyte mask[] )
-{
-   WMesaContext pwc = wmesa_context(ctx);
-   WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(pwc->hDC);
-   CONST BITMAPINFO bmi=
-   {
-      {
-         sizeof(BITMAPINFOHEADER),
-         n, 1, 1, 32, BI_RGB, 0, 1, 1, 0, 0
-      }
-   };
-   HBITMAP bmp=0;
-   HDC mdc=0;
-   typedef union
-   {
-      unsigned i;
-      struct {
-         unsigned b:8, g:8, r:8, a:8;
-      };
-   } BGRA;
-   BGRA *bgra, c;
-   GLuint i;
-
-   if (n < 16) {   // the value 16 is just guessed
-      y=FLIP(y);
-      if (mask) {
-         for (i=0; i<n; i++)
-            if (mask[i])
-               SetPixel(pwc->hDC, x+i, y,
-                        RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
-      }
-      else {
-         for (i=0; i<n; i++)
-            SetPixel(pwc->hDC, x+i, y,
-                     RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
-      }
-   }
-   else {
-      if (!pwfb) {
-         _mesa_problem(NULL, "wmesa: write_rgba_span_front on unknown hdc");
-         return;
-      }
-      bgra=malloc(n*sizeof(BGRA));
-      if (!bgra) {
-         _mesa_problem(NULL, "wmesa: write_rgba_span_front: out of memory");
-         return;
-      }
-      c.a=0;
-      if (mask) {
-         for (i=0; i<n; i++) {
-            if (mask[i]) {
-               c.r=rgba[i][RCOMP];
-               c.g=rgba[i][GCOMP];
-               c.b=rgba[i][BCOMP];
-               c.a=rgba[i][ACOMP];
-               bgra[i]=c;
-            }
-            else
-               bgra[i].i=0;
-         }
-      }
-      else {
-         for (i=0; i<n; i++) {
-            c.r=rgba[i][RCOMP];
-            c.g=rgba[i][GCOMP];
-            c.b=rgba[i][BCOMP];
-            c.a=rgba[i][ACOMP];
-            bgra[i]=c;
-         }
-      }
-      bmp=CreateBitmap(n, 1,  1, 32, bgra);
-      mdc=CreateCompatibleDC(pwfb->hDC);
-      SelectObject(mdc, bmp);
-      y=FLIP(y);
-      BitBlt(pwfb->hDC, x, y, n, 1, mdc, 0, 0, SRCCOPY);
-      SelectObject(mdc, 0);
-      DeleteObject(bmp);
-      DeleteDC(mdc);
-      free(bgra);
-   }
-}
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_front(const struct gl_context *ctx, 
-				  struct gl_renderbuffer *rb, 
-				  GLuint n, GLint x, GLint y,
-				  const GLubyte rgb[][3], 
-				  const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    GLuint i;
-    
-    (void) ctx;
-    y=FLIP(y);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-		SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP], 
-					       rgb[i][BCOMP]));
-    }
-    else {
-	for (i=0; i<n; i++)
-	    SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP], 
-					   rgb[i][BCOMP]));
-    }
-    
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_front(const struct gl_context *ctx, 
-					struct gl_renderbuffer *rb,
-					GLuint n, GLint x, GLint y,
-					const GLchan color[4], 
-					const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    COLORREF colorref;
-
-    (void) ctx;
-    colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
-    y=FLIP(y);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-		SetPixel(pwc->hDC, x+i, y, colorref);
-    }
-    else
-	for (i=0; i<n; i++)
-	    SetPixel(pwc->hDC, x+i, y, colorref);
-
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_front(const struct gl_context *ctx, 
-				     struct gl_renderbuffer *rb,
-				     GLuint n, 
-				     const GLint x[], const GLint y[],
-				     const GLubyte rgba[][4], 
-				     const GLubyte mask[] )
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    (void) ctx;
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    SetPixel(pwc->hDC, x[i], FLIP(y[i]), 
-		     RGB(rgba[i][RCOMP], rgba[i][GCOMP], 
-			 rgba[i][BCOMP]));
-}
-
-
-
-/*
- * Write an array of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_front(const struct gl_context *ctx, 
-					  struct gl_renderbuffer *rb,
-					  GLuint n,
-					  const GLint x[], const GLint y[],
-					  const GLchan color[4],
-					  const GLubyte mask[] )
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    COLORREF colorref;
-    (void) ctx;
-    colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    SetPixel(pwc->hDC, x[i], FLIP(y[i]), colorref);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_front(const struct gl_context *ctx, 
-				  struct gl_renderbuffer *rb,
-				  GLuint n, GLint x, GLint y,
-				  GLubyte rgba[][4] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    GLuint i;
-    COLORREF Color;
-    y = FLIP(y);
-    for (i=0; i<n; i++) {
-	Color = GetPixel(pwc->hDC, x+i, y);
-	rgba[i][RCOMP] = GetRValue(Color);
-	rgba[i][GCOMP] = GetGValue(Color);
-	rgba[i][BCOMP] = GetBValue(Color);
-	rgba[i][ACOMP] = 255;
-    }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_front(const struct gl_context *ctx, 
-				    struct gl_renderbuffer *rb,
-				    GLuint n, const GLint x[], const GLint y[],
-				    GLubyte rgba[][4])
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    GLuint i;
-    COLORREF Color;
-    for (i=0; i<n; i++) {
-        GLint y2 = FLIP(y[i]);
-        Color = GetPixel(pwc->hDC, x[i], y2);
-        rgba[i][RCOMP] = GetRValue(Color);
-        rgba[i][GCOMP] = GetGValue(Color);
-        rgba[i][BCOMP] = GetBValue(Color);
-        rgba[i][ACOMP] = 255;
-    }
-}
-
-/*********************************************************************/
-
-/* DOUBLE BUFFER 32-bit */
-
-#define WMSETPIXEL32(pwc, y, x, r, g, b) { \
-LPDWORD lpdw = ((LPDWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \
-*lpdw = BGR32((r),(g),(b)); }
-
-
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_32(const struct gl_context *ctx, 
-			       struct gl_renderbuffer *rb, 
-			       GLuint n, GLint x, GLint y,
-			       const GLubyte rgba[][4], 
-			       const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLuint i;
-    LPDWORD lpdw;
-
-    (void) ctx;
-    
-    y=FLIP(y);
-    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-                lpdw[i] = BGR32(rgba[i][RCOMP], rgba[i][GCOMP], 
-				rgba[i][BCOMP]);
-    }
-    else {
-	for (i=0; i<n; i++)
-                *lpdw++ = BGR32(rgba[i][RCOMP], rgba[i][GCOMP], 
-				rgba[i][BCOMP]);
-    }
-}
-
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_32(const struct gl_context *ctx, 
-			      struct gl_renderbuffer *rb, 
-			      GLuint n, GLint x, GLint y,
-			      const GLubyte rgb[][3], 
-			      const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLuint i;
-    LPDWORD lpdw;
-
-    (void) ctx;
-    
-    y=FLIP(y);
-    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-                lpdw[i] = BGR32(rgb[i][RCOMP], rgb[i][GCOMP], 
-				rgb[i][BCOMP]);
-    }
-    else {
-	for (i=0; i<n; i++)
-                *lpdw++ = BGR32(rgb[i][RCOMP], rgb[i][GCOMP], 
-				rgb[i][BCOMP]);
-    }
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_32(const struct gl_context *ctx, 
-				    struct gl_renderbuffer *rb,
-				    GLuint n, GLint x, GLint y,
-				    const GLchan color[4], 
-				    const GLubyte mask[])
-{
-    LPDWORD lpdw;
-    DWORD pixel;
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    y=FLIP(y);
-    pixel = BGR32(color[RCOMP], color[GCOMP], color[BCOMP]);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-                lpdw[i] = pixel;
-    }
-    else
-	for (i=0; i<n; i++)
-                *lpdw++ = pixel;
-
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_32(const struct gl_context *ctx, 
-				 struct gl_renderbuffer *rb,
-				 GLuint n, const GLint x[], const GLint y[],
-				 const GLubyte rgba[][4], 
-				 const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    WMSETPIXEL32(pwfb, FLIP(y[i]), x[i],
-			 rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
-}
-
-/*
- * Write an array of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_32(const struct gl_context *ctx, 
-				      struct gl_renderbuffer *rb,
-				      GLuint n,
-				      const GLint x[], const GLint y[],
-				      const GLchan color[4],
-				      const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    WMSETPIXEL32(pwfb, FLIP(y[i]),x[i],color[RCOMP],
-			 color[GCOMP], color[BCOMP]);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_32(const struct gl_context *ctx, 
-			      struct gl_renderbuffer *rb,
-			      GLuint n, GLint x, GLint y,
-			      GLubyte rgba[][4] )
-{
-    GLuint i;
-    DWORD pixel;
-    LPDWORD lpdw;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    
-    y = FLIP(y);
-    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    for (i=0; i<n; i++) {
-	pixel = lpdw[i];
-	rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);
-	rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);
-	rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);
-	rgba[i][ACOMP] = 255;
-    }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_32(const struct gl_context *ctx, 
-				struct gl_renderbuffer *rb,
-				GLuint n, const GLint x[], const GLint y[],
-				GLubyte rgba[][4])
-{
-    GLuint i;
-    DWORD pixel;
-    LPDWORD lpdw;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
-    for (i=0; i<n; i++) {
-	GLint y2 = FLIP(y[i]);
-	lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];
-	pixel = *lpdw;
-	rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);
-	rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);
-	rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);
-	rgba[i][ACOMP] = 255;
-  }
-}
-
-
-/*********************************************************************/
-
-/* DOUBLE BUFFER 24-bit */
-
-#define WMSETPIXEL24(pwc, y, x, r, g, b) { \
-LPBYTE lpb = ((LPBYTE)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (3 * x)); \
-lpb[0] = (b); \
-lpb[1] = (g); \
-lpb[2] = (r); }
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_24(const struct gl_context *ctx, 
-			       struct gl_renderbuffer *rb, 
-			       GLuint n, GLint x, GLint y,
-			       const GLubyte rgba[][4], 
-			       const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLuint i;
-    LPBYTE lpb;
-
-    (void) ctx;
-    
-    y=FLIP(y);
-    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i]) {
-                lpb[3*i] = rgba[i][BCOMP];
-                lpb[3*i+1] = rgba[i][GCOMP];
-                lpb[3*i+2] = rgba[i][RCOMP];
-	    }
-    }
-    else {
-	    for (i=0; i<n; i++) {
-            *lpb++ = rgba[i][BCOMP];
-            *lpb++ = rgba[i][GCOMP];
-            *lpb++ = rgba[i][RCOMP];
-	    }
-    }
-}
-
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_24(const struct gl_context *ctx, 
-			      struct gl_renderbuffer *rb, 
-			      GLuint n, GLint x, GLint y,
-			      const GLubyte rgb[][3], 
-			      const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLuint i;
-    LPBYTE lpb;
-
-    (void) ctx;
-    
-    y=FLIP(y);
-    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i]) {
-            lpb[3*i] = rgb[i][BCOMP];
-            lpb[3*i+1] = rgb[i][GCOMP];
-            lpb[3*i+2] = rgb[i][RCOMP];
-	    }
-    }
-    else {
-    	for (i=0; i<n; i++) {
-    		*lpb++ = rgb[i][BCOMP];
-    		*lpb++ = rgb[i][GCOMP];
-    		*lpb++ = rgb[i][RCOMP];
-    	}
-    }
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_24(const struct gl_context *ctx, 
-				    struct gl_renderbuffer *rb,
-				    GLuint n, GLint x, GLint y,
-				    const GLchan color[4], 
-				    const GLubyte mask[])
-{
-    LPBYTE lpb;
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
-    y=FLIP(y);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i]) {
-	    	lpb[3*i] = color[BCOMP];
-	    	lpb[3*i+1] = color[GCOMP];
-	    	lpb[3*i+2] = color[RCOMP];
-	    }
-    }
-    else
-	for (i=0; i<n; i++) {
-		*lpb++ = color[BCOMP];
-		*lpb++ = color[GCOMP];
-		*lpb++ = color[RCOMP];		
-	}
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_24(const struct gl_context *ctx, 
-				 struct gl_renderbuffer *rb,
-				 GLuint n, const GLint x[], const GLint y[],
-				 const GLubyte rgba[][4], 
-				 const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    WMSETPIXEL24(pwfb, FLIP(y[i]), x[i],
-			 rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
-}
-
-/*
- * Write an array of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_24(const struct gl_context *ctx, 
-				      struct gl_renderbuffer *rb,
-				      GLuint n,
-				      const GLint x[], const GLint y[],
-				      const GLchan color[4],
-				      const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    WMSETPIXEL24(pwfb, FLIP(y[i]),x[i],color[RCOMP],
-			 color[GCOMP], color[BCOMP]);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_24(const struct gl_context *ctx, 
-			      struct gl_renderbuffer *rb,
-			      GLuint n, GLint x, GLint y,
-			      GLubyte rgba[][4] )
-{
-    GLuint i;
-    LPBYTE lpb;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    
-    y = FLIP(y);
-    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
-    for (i=0; i<n; i++) {
-	rgba[i][RCOMP] = lpb[3*i+2];
-	rgba[i][GCOMP] = lpb[3*i+1];
-	rgba[i][BCOMP] = lpb[3*i];
-	rgba[i][ACOMP] = 255;
-    }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_24(const struct gl_context *ctx, 
-				struct gl_renderbuffer *rb,
-				GLuint n, const GLint x[], const GLint y[],
-				GLubyte rgba[][4])
-{
-    GLuint i;
-    LPBYTE lpb;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
-    for (i=0; i<n; i++) {
-	GLint y2 = FLIP(y[i]);
-	lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + (3 * x[i]);
-	rgba[i][RCOMP] = lpb[3*i+2];
-	rgba[i][GCOMP] = lpb[3*i+1];
-	rgba[i][BCOMP] = lpb[3*i];
-	rgba[i][ACOMP] = 255;
-  }
-}
-
-
-/*********************************************************************/
-
-/* DOUBLE BUFFER 16-bit */
-
-#define WMSETPIXEL16(pwc, y, x, r, g, b) { \
-LPWORD lpw = ((LPWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \
-*lpw = BGR16((r),(g),(b)); }
-
-
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_16(const struct gl_context *ctx, 
-			       struct gl_renderbuffer *rb, 
-			       GLuint n, GLint x, GLint y,
-			       const GLubyte rgba[][4], 
-			       const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLuint i;
-    LPWORD lpw;
-
-    (void) ctx;
-    
-    y=FLIP(y);
-    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-                lpw[i] = BGR16(rgba[i][RCOMP], rgba[i][GCOMP], 
-			       rgba[i][BCOMP]);
-    }
-    else {
-	for (i=0; i<n; i++)
-                *lpw++ = BGR16(rgba[i][RCOMP], rgba[i][GCOMP], 
-			       rgba[i][BCOMP]);
-    }
-}
-
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_16(const struct gl_context *ctx, 
-			      struct gl_renderbuffer *rb, 
-			      GLuint n, GLint x, GLint y,
-			      const GLubyte rgb[][3], 
-			      const GLubyte mask[] )
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    GLuint i;
-    LPWORD lpw;
-
-    (void) ctx;
-    
-    y=FLIP(y);
-    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-                lpw[i] = BGR16(rgb[i][RCOMP], rgb[i][GCOMP], 
-			       rgb[i][BCOMP]);
-    }
-    else {
-	for (i=0; i<n; i++)
-                *lpw++ = BGR16(rgb[i][RCOMP], rgb[i][GCOMP], 
-			       rgb[i][BCOMP]);
-    }
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_16(const struct gl_context *ctx, 
-				    struct gl_renderbuffer *rb,
-				    GLuint n, GLint x, GLint y,
-				    const GLchan color[4], 
-				    const GLubyte mask[])
-{
-    LPWORD lpw;
-    WORD pixel;
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    (void) ctx;
-    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    y=FLIP(y);
-    pixel = BGR16(color[RCOMP], color[GCOMP], color[BCOMP]);
-    if (mask) {
-	for (i=0; i<n; i++)
-	    if (mask[i])
-                lpw[i] = pixel;
-    }
-    else
-	for (i=0; i<n; i++)
-                *lpw++ = pixel;
-
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_16(const struct gl_context *ctx, 
-				 struct gl_renderbuffer *rb,
-				 GLuint n, const GLint x[], const GLint y[],
-				 const GLubyte rgba[][4], 
-				 const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    (void) ctx;
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    WMSETPIXEL16(pwfb, FLIP(y[i]), x[i],
-			 rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
-}
-
-/*
- * Write an array of pixels with a boolean mask.  The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_16(const struct gl_context *ctx, 
-				      struct gl_renderbuffer *rb,
-				      GLuint n,
-				      const GLint x[], const GLint y[],
-				      const GLchan color[4],
-				      const GLubyte mask[])
-{
-    GLuint i;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    (void) ctx;
-    for (i=0; i<n; i++)
-	if (mask[i])
-	    WMSETPIXEL16(pwfb, FLIP(y[i]),x[i],color[RCOMP],
-			 color[GCOMP], color[BCOMP]);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_16(const struct gl_context *ctx, 
-			      struct gl_renderbuffer *rb,
-			      GLuint n, GLint x, GLint y,
-			      GLubyte rgba[][4] )
-{
-    GLuint i, pixel;
-    LPWORD lpw;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-    
-    y = FLIP(y);
-    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
-    for (i=0; i<n; i++) {
-	pixel = lpw[i];
-	/* Windows uses 5,5,5 for 16-bit */
-	rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;
-	rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;
-	rgba[i][BCOMP] = (pixel & 0x001f) << 3;
-	rgba[i][ACOMP] = 255;
-    }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_16(const struct gl_context *ctx, 
-				struct gl_renderbuffer *rb,
-				GLuint n, const GLint x[], const GLint y[],
-				GLubyte rgba[][4])
-{
-    GLuint i, pixel;
-    LPWORD lpw;
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
-    for (i=0; i<n; i++) {
-	GLint y2 = FLIP(y[i]);
-	lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];
-	pixel = *lpw;
-	/* Windows uses 5,5,5 for 16-bit */
-	rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;
-	rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;
-	rgba[i][BCOMP] = (pixel & 0x001f) << 3;
-	rgba[i][ACOMP] = 255;
-  }
-}
-
-
-
-
-/**********************************************************************/
-/*****                   BUFFER Functions                         *****/
-/**********************************************************************/
-
-
-
-
-static void
-wmesa_delete_renderbuffer(struct gl_renderbuffer *rb)
-{
-    free(rb);
-}
-
-
-/**
- * This is called by Mesa whenever it determines that the window size
- * has changed.  Do whatever's needed to cope with that.
- */
-static GLboolean
-wmesa_renderbuffer_storage(struct gl_context *ctx, 
-			   struct gl_renderbuffer *rb,
-			   GLenum internalFormat, 
-			   GLuint width, 
-			   GLuint height)
-{
-    rb->Width = width;
-    rb->Height = height;
-    return GL_TRUE;
-}
-
-
-/**
- * Plug in the Get/PutRow/Values functions for a renderbuffer depending
- * on if we're drawing to the front or back color buffer.
- */
-void wmesa_set_renderbuffer_funcs(struct gl_renderbuffer *rb, int pixelformat,
-                                  int cColorBits, int double_buffer)
-{
-    if (double_buffer) {
-        /* back buffer */
-	/* Picking the correct span functions is important because
-	 * the DIB was allocated with the indicated depth. */
-	switch(pixelformat) {
-	case PF_5R6G5B:
-	    rb->PutRow = write_rgba_span_16;
-	    rb->PutRowRGB = write_rgb_span_16;
-	    rb->PutMonoRow = write_mono_rgba_span_16;
-	    rb->PutValues = write_rgba_pixels_16;
-	    rb->PutMonoValues = write_mono_rgba_pixels_16;
-	    rb->GetRow = read_rgba_span_16;
-	    rb->GetValues = read_rgba_pixels_16;
-	    break;
-	case PF_8R8G8B:
-		if (cColorBits == 24)
-		{
-		    rb->PutRow = write_rgba_span_24;
-		    rb->PutRowRGB = write_rgb_span_24;
-		    rb->PutMonoRow = write_mono_rgba_span_24;
-		    rb->PutValues = write_rgba_pixels_24;
-		    rb->PutMonoValues = write_mono_rgba_pixels_24;
-		    rb->GetRow = read_rgba_span_24;
-		    rb->GetValues = read_rgba_pixels_24;
-		}
-		else
-		{
-	        rb->PutRow = write_rgba_span_32;
-	        rb->PutRowRGB = write_rgb_span_32;
-	        rb->PutMonoRow = write_mono_rgba_span_32;
-	        rb->PutValues = write_rgba_pixels_32;
-	        rb->PutMonoValues = write_mono_rgba_pixels_32;
-	        rb->GetRow = read_rgba_span_32;
-	        rb->GetValues = read_rgba_pixels_32;
-		}
-	    break;
-	default:
-	    break;
-	}
-    }
-    else {
-        /* front buffer (actual Windows window) */
-	rb->PutRow = write_rgba_span_front;
-	rb->PutRowRGB = write_rgb_span_front;
-	rb->PutMonoRow = write_mono_rgba_span_front;
-	rb->PutValues = write_rgba_pixels_front;
-	rb->PutMonoValues = write_mono_rgba_pixels_front;
-	rb->GetRow = read_rgba_span_front;
-	rb->GetValues = read_rgba_pixels_front;
-    }
-}
-
-/**
- * Called by ctx->Driver.ResizeBuffers()
- * Resize the front/back colorbuffers to match the latest window size.
- */
-static void
-wmesa_resize_buffers(struct gl_context *ctx, struct gl_framebuffer *buffer,
-                     GLuint width, GLuint height)
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);
-
-    if (pwfb->Base.Width != width || pwfb->Base.Height != height) {
-	/* Realloc back buffer */
-	if (ctx->Visual.doubleBufferMode == 1) {
-	    wmDeleteBackingStore(pwfb);
-	    wmCreateBackingStore(pwfb, width, height);
-	}
-    }
-    _mesa_resize_framebuffer(ctx, buffer, width, height);
-}
-
-
-/**
- * Called by glViewport.
- * This is a good time for us to poll the current window size and adjust
- * our renderbuffers to match the current window size.
- * Remember, we have no opportunity to respond to conventional
- * resize events since the driver has no event loop.
- * Thus, we poll.
- * MakeCurrent also ends up making a call here, so that ensures
- * we get the viewport set correctly, even if the app does not call
- * glViewport and relies on the defaults.
- */
-static void wmesa_viewport(struct gl_context *ctx, 
-			   GLint x, GLint y, 
-			   GLsizei width, GLsizei height)
-{
-    WMesaContext pwc = wmesa_context(ctx);
-    GLuint new_width, new_height;
-
-    wmesa_get_buffer_size(ctx->WinSysDrawBuffer, &new_width, &new_height);
-
-    /**
-     * Resize buffers if the window size changed.
-     */
-    wmesa_resize_buffers(ctx, ctx->WinSysDrawBuffer, new_width, new_height);
-    ctx->NewState |= _NEW_BUFFERS;  /* to update scissor / window bounds */
-}
-
-
-
-
-/**
- * Called when the driver should update it's state, based on the new_state
- * flags.
- */
-static void wmesa_update_state(struct gl_context *ctx, GLuint new_state)
-{
-    _swrast_InvalidateState(ctx, new_state);
-    _swsetup_InvalidateState(ctx, new_state);
-    _vbo_InvalidateState(ctx, new_state);
-    _tnl_InvalidateState(ctx, new_state);
-
-    /* TODO - This code is not complete yet because I 
-     * don't know what to do for all state updates.
-     */
-
-    if (new_state & _NEW_BUFFERS) {
-    }
-}
-
-
-
-
-
-/**********************************************************************/
-/*****                   WMESA Functions                          *****/
-/**********************************************************************/
-
-WMesaContext WMesaCreateContext(HDC hDC, 
-				HPALETTE* Pal,
-				GLboolean rgb_flag,
-				GLboolean db_flag,
-				GLboolean alpha_flag)
-{
-    WMesaContext c;
-    struct dd_function_table functions;
-    GLint red_bits, green_bits, blue_bits, alpha_bits;
-    struct gl_context *ctx;
-    struct gl_config *visual;
-
-    (void) Pal;
-    
-    /* Indexed mode not supported */
-    if (!rgb_flag)
-	return NULL;
-
-    /* Allocate wmesa context */
-    c = CALLOC_STRUCT(wmesa_context);
-    if (!c)
-	return NULL;
-
-#if 0
-    /* I do not understand this contributed code */
-    /* Support memory and device contexts */
-    if(WindowFromDC(hDC) != NULL) {
-	c->hDC = GetDC(WindowFromDC(hDC)); /* huh ???? */
-    }
-    else {
-	c->hDC = hDC;
-    }
-#else
-    c->hDC = hDC;
-#endif
-
-    /* Get data for visual */
-    /* Dealing with this is actually a bit of overkill because Mesa will end
-     * up treating all color component size requests less than 8 by using 
-     * a single byte per channel.  In addition, the interface to the span
-     * routines passes colors as an entire byte per channel anyway, so there
-     * is nothing to be saved by telling the visual to be 16 bits if the device
-     * is 16 bits.  That is, Mesa is going to compute colors down to 8 bits per
-     * channel anyway.
-     * But we go through the motions here anyway.
-     */
-    switch (GetDeviceCaps(c->hDC, BITSPIXEL)) {
-    case 16:
-	red_bits = green_bits = blue_bits = 5;
-	alpha_bits = 0;
-	break;
-    default:
-	red_bits = green_bits = blue_bits = 8;
-	alpha_bits = 8;
-	break;
-    }
-    /* Create visual based on flags */
-    visual = _mesa_create_visual(db_flag,    /* db_flag */
-                                 GL_FALSE,   /* stereo */
-                                 red_bits, green_bits, blue_bits, /* color RGB */
-                                 alpha_flag ? alpha_bits : 0, /* color A */
-                                 DEFAULT_SOFTWARE_DEPTH_BITS, /* depth_bits */
-                                 8,          /* stencil_bits */
-                                 16,16,16,   /* accum RGB */
-                                 alpha_flag ? 16 : 0, /* accum A */
-                                 1);         /* num samples */
-    
-    if (!visual) {
-	free(c);
-	return NULL;
-    }
-
-    /* Set up driver functions */
-    _mesa_init_driver_functions(&functions);
-    functions.GetString = wmesa_get_string;
-    functions.UpdateState = wmesa_update_state;
-    functions.GetBufferSize = wmesa_get_buffer_size;
-    functions.Flush = wmesa_flush;
-    functions.Clear = clear;
-    functions.ClearColor = clear_color;
-    functions.ResizeBuffers = wmesa_resize_buffers;
-    functions.Viewport = wmesa_viewport;
-
-    /* initialize the Mesa context data */
-    ctx = &c->gl_ctx;
-    _mesa_initialize_context(ctx, API_OPENGL, visual,
-                             NULL, &functions, (void *)c);
-
-    /* visual no longer needed - it was copied by _mesa_initialize_context() */
-    _mesa_destroy_visual(visual);
-
-    _mesa_enable_sw_extensions(ctx);
-    _mesa_enable_1_3_extensions(ctx);
-    _mesa_enable_1_4_extensions(ctx);
-    _mesa_enable_1_5_extensions(ctx);
-    _mesa_enable_2_0_extensions(ctx);
-    _mesa_enable_2_1_extensions(ctx);
-  
-    _mesa_meta_init(ctx);
-
-    /* Initialize the software rasterizer and helper modules. */
-    if (!_swrast_CreateContext(ctx) ||
-        !_vbo_CreateContext(ctx) ||
-        !_tnl_CreateContext(ctx) ||
-	!_swsetup_CreateContext(ctx)) {
-	_mesa_free_context_data(ctx);
-	free(c);
-	return NULL;
-    }
-    _swsetup_Wakeup(ctx);
-    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
-
-    return c;
-}
-
-
-void WMesaDestroyContext( WMesaContext pwc )
-{
-    struct gl_context *ctx = &pwc->gl_ctx;
-    WMesaFramebuffer pwfb;
-    GET_CURRENT_CONTEXT(cur_ctx);
-
-    if (cur_ctx == ctx) {
-        /* unbind current if deleting current context */
-        WMesaMakeCurrent(NULL, NULL);
-    }
-
-    /* clean up frame buffer resources */
-    pwfb = wmesa_lookup_framebuffer(pwc->hDC);
-    if (pwfb) {
-	if (ctx->Visual.doubleBufferMode == 1)
-	    wmDeleteBackingStore(pwfb);
-	wmesa_free_framebuffer(pwc->hDC);
-    }
-
-    /* Release for device, not memory contexts */
-    if (WindowFromDC(pwc->hDC) != NULL)
-    {
-      ReleaseDC(WindowFromDC(pwc->hDC), pwc->hDC);
-    }
-    DeleteObject(pwc->clearPen); 
-    DeleteObject(pwc->clearBrush); 
-    
-    _mesa_meta_free(ctx);
-
-    _swsetup_DestroyContext(ctx);
-    _tnl_DestroyContext(ctx);
-    _vbo_DestroyContext(ctx);
-    _swrast_DestroyContext(ctx);
-    
-    _mesa_free_context_data(ctx);
-    free(pwc);
-}
-
-
-/**
- * Create a new color renderbuffer.
- */
-struct gl_renderbuffer *
-wmesa_new_renderbuffer(void)
-{
-    struct gl_renderbuffer *rb = CALLOC_STRUCT(gl_renderbuffer);
-    if (!rb)
-        return NULL;
-
-    _mesa_init_renderbuffer(rb, (GLuint)0);
-    
-    rb->_BaseFormat = GL_RGBA;
-    rb->InternalFormat = GL_RGBA;
-    rb->DataType = CHAN_TYPE;
-    rb->Delete = wmesa_delete_renderbuffer;
-    rb->AllocStorage = wmesa_renderbuffer_storage;
-    return rb;
-}
-
-
-void WMesaMakeCurrent(WMesaContext c, HDC hdc)
-{
-    WMesaFramebuffer pwfb;
-
-    {
-        /* return if already current */
-        GET_CURRENT_CONTEXT(ctx);
-        WMesaContext pwc = wmesa_context(ctx);
-        if (pwc && c == pwc && pwc->hDC == hdc)
-            return;
-    }
-
-    pwfb = wmesa_lookup_framebuffer(hdc);
-
-    /* Lazy creation of framebuffers */
-    if (c && !pwfb && hdc) {
-        struct gl_renderbuffer *rb;
-        struct gl_config *visual = &c->gl_ctx.Visual;
-        GLuint width, height;
-
-        get_window_size(hdc, &width, &height);
-
-	c->clearPen = CreatePen(PS_SOLID, 1, 0); 
-	c->clearBrush = CreateSolidBrush(0); 
-
-        pwfb = wmesa_new_framebuffer(hdc, visual);
-
-	/* Create back buffer if double buffered */
-	if (visual->doubleBufferMode == 1) {
-	    wmCreateBackingStore(pwfb, width, height);
-	}
-	
-        /* make render buffers */
-        if (visual->doubleBufferMode == 1) {
-            rb = wmesa_new_renderbuffer();
-            _mesa_add_renderbuffer(&pwfb->Base, BUFFER_BACK_LEFT, rb);
-            wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 1);
-	}
-        rb = wmesa_new_renderbuffer();
-        _mesa_add_renderbuffer(&pwfb->Base, BUFFER_FRONT_LEFT, rb);
-        wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 0);
-
-	/* Let Mesa own the Depth, Stencil, and Accum buffers */
-        _mesa_add_soft_renderbuffers(&pwfb->Base,
-                                     GL_FALSE, /* color */
-                                     visual->depthBits > 0,
-                                     visual->stencilBits > 0,
-                                     visual->accumRedBits > 0,
-                                     visual->alphaBits >0, 
-                                     GL_FALSE);
-    }
-
-    if (c && pwfb)
-	_mesa_make_current(&c->gl_ctx, &pwfb->Base, &pwfb->Base);
-    else
-        _mesa_make_current(NULL, NULL, NULL);
-}
-
-
-void WMesaSwapBuffers( HDC hdc )
-{
-    GET_CURRENT_CONTEXT(ctx);
-    WMesaContext pwc = wmesa_context(ctx);
-    WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(hdc);
-
-    if (!pwfb) {
-        _mesa_problem(NULL, "wmesa: swapbuffers on unknown hdc");
-        return;
-    }
-
-    /* If we're swapping the buffer associated with the current context
-     * we have to flush any pending rendering commands first.
-     */
-    if (pwc->hDC == hdc) {
-	_mesa_notifySwapBuffers(ctx);
-
-	BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,
-	       pwfb->dib_hDC, 0, 0, SRCCOPY);
-    }
-    else {
-        /* XXX for now only allow swapping current window */
-        _mesa_problem(NULL, "wmesa: can't swap non-current window");
-    }
-}
-
-void WMesaShareLists(WMesaContext ctx_to_share, WMesaContext ctx)
-{
-	_mesa_share_state(&ctx->gl_ctx, &ctx_to_share->gl_ctx);	
-}
-
+/*

+ * Windows (Win32/Win64) device driver for Mesa

+ *

+ */

+

+#include "wmesadef.h"

+#include "colors.h"

+#include <GL/wmesa.h>

+#include <winuser.h>

+#include "context.h"

+#include "extensions.h"

+#include "framebuffer.h"

+#include "renderbuffer.h"

+#include "drivers/common/driverfuncs.h"

+#include "drivers/common/meta.h"

+#include "vbo/vbo.h"

+#include "swrast/swrast.h"

+#include "swrast_setup/swrast_setup.h"

+#include "tnl/tnl.h"

+#include "tnl/t_context.h"

+#include "tnl/t_pipeline.h"

+

+

+/* linked list of our Framebuffers (windows) */

+static WMesaFramebuffer FirstFramebuffer = NULL;

+

+

+/**

+ * Create a new WMesaFramebuffer object which will correspond to the

+ * given HDC (Window handle).

+ */

+WMesaFramebuffer

+wmesa_new_framebuffer(HDC hdc, struct gl_config *visual)

+{

+    WMesaFramebuffer pwfb

+        = (WMesaFramebuffer) malloc(sizeof(struct wmesa_framebuffer));

+    if (pwfb) {

+        _mesa_initialize_window_framebuffer(&pwfb->Base, visual);

+        pwfb->hDC = hdc;

+        /* insert at head of list */

+        pwfb->next = FirstFramebuffer;

+        FirstFramebuffer = pwfb;

+    }

+    return pwfb;

+}

+

+/**

+ * Given an hdc, free the corresponding WMesaFramebuffer

+ */

+void

+wmesa_free_framebuffer(HDC hdc)

+{

+    WMesaFramebuffer pwfb, prev;

+    for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {

+        if (pwfb->hDC == hdc)

+            break;

+	prev = pwfb;

+    }

+    if (pwfb) {

+        struct gl_framebuffer *fb;

+	if (pwfb == FirstFramebuffer)

+	    FirstFramebuffer = pwfb->next;

+	else

+	    prev->next = pwfb->next;

+        fb = &pwfb->Base;

+        _mesa_reference_framebuffer(&fb, NULL); 

+    }

+}

+

+/**

+ * Given an hdc, return the corresponding WMesaFramebuffer

+ */

+WMesaFramebuffer

+wmesa_lookup_framebuffer(HDC hdc)

+{

+    WMesaFramebuffer pwfb;

+    for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {

+        if (pwfb->hDC == hdc)

+            return pwfb;

+    }

+    return NULL;

+}

+

+

+/**

+ * Given a struct gl_framebuffer, return the corresponding WMesaFramebuffer.

+ */

+static WMesaFramebuffer wmesa_framebuffer(struct gl_framebuffer *fb)

+{

+    return (WMesaFramebuffer) fb;

+}

+

+

+/**

+ * Given a struct gl_context, return the corresponding WMesaContext.

+ */

+static WMesaContext wmesa_context(const struct gl_context *ctx)

+{

+    return (WMesaContext) ctx;

+}

+

+

+/*

+ * Every driver should implement a GetString function in order to

+ * return a meaningful GL_RENDERER string.

+ */

+static const GLubyte *wmesa_get_string(struct gl_context *ctx, GLenum name)

+{

+    return (name == GL_RENDERER) ? 

+	(GLubyte *) "Mesa Windows GDI Driver" : NULL;

+}

+

+

+/*

+ * Determine the pixel format based on the pixel size.

+ */

+static void wmSetPixelFormat(WMesaFramebuffer pwfb, HDC hDC)

+{

+    pwfb->cColorBits = GetDeviceCaps(hDC, BITSPIXEL);

+

+    /* Only 16 and 32 bit targets are supported now */

+    assert(pwfb->cColorBits == 0 ||

+	   pwfb->cColorBits == 16 || 

+	   pwfb->cColorBits == 24 || 

+	   pwfb->cColorBits == 32);

+

+    switch(pwfb->cColorBits){

+    case 8:

+	pwfb->pixelformat = PF_INDEX8;

+	break;

+    case 16:

+	pwfb->pixelformat = PF_5R6G5B;

+	break;

+    case 24:

+    case 32:

+	pwfb->pixelformat = PF_8R8G8B;

+	break;

+    default:

+	pwfb->pixelformat = PF_BADFORMAT;

+    }

+}

+

+

+/**

+ * Create DIB for back buffer.

+ * We write into this memory with the span routines and then blit it

+ * to the window on a buffer swap.

+ */

+BOOL wmCreateBackingStore(WMesaFramebuffer pwfb, long lxSize, long lySize)

+{

+    HDC          hdc = pwfb->hDC;

+    LPBITMAPINFO pbmi = &(pwfb->bmi);

+    HDC          hic;

+

+    pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);

+    pbmi->bmiHeader.biWidth = lxSize;

+    pbmi->bmiHeader.biHeight= -lySize;

+    pbmi->bmiHeader.biPlanes = 1;

+    pbmi->bmiHeader.biBitCount = GetDeviceCaps(pwfb->hDC, BITSPIXEL);

+    pbmi->bmiHeader.biCompression = BI_RGB;

+    pbmi->bmiHeader.biSizeImage = 0;

+    pbmi->bmiHeader.biXPelsPerMeter = 0;

+    pbmi->bmiHeader.biYPelsPerMeter = 0;

+    pbmi->bmiHeader.biClrUsed = 0;

+    pbmi->bmiHeader.biClrImportant = 0;

+    

+    pwfb->cColorBits = pbmi->bmiHeader.biBitCount;

+    pwfb->ScanWidth = (lxSize * (pwfb->cColorBits / 8) + 3) & ~3;

+    

+    hic = CreateIC("display", NULL, NULL, NULL);

+    pwfb->dib_hDC = CreateCompatibleDC(hic);

+    

+    pwfb->hbmDIB = CreateDIBSection(hic,

+				   &pwfb->bmi,

+				   DIB_RGB_COLORS,

+				   (void **)&(pwfb->pbPixels),

+				   0,

+				   0);

+    pwfb->hOldBitmap = SelectObject(pwfb->dib_hDC, pwfb->hbmDIB);

+    

+    DeleteDC(hic);

+

+    wmSetPixelFormat(pwfb, pwfb->hDC);

+    return TRUE;

+}

+

+

+static wmDeleteBackingStore(WMesaFramebuffer pwfb)

+{

+    if (pwfb->hbmDIB) {

+	SelectObject(pwfb->dib_hDC, pwfb->hOldBitmap);

+	DeleteDC(pwfb->dib_hDC);

+	DeleteObject(pwfb->hbmDIB);

+    }

+}

+

+

+/**

+ * Find the width and height of the window named by hdc.

+ */

+static void

+get_window_size(HDC hdc, GLuint *width, GLuint *height)

+{

+    if (WindowFromDC(hdc)) {

+        RECT rect;

+        GetClientRect(WindowFromDC(hdc), &rect);

+        *width = rect.right - rect.left;

+        *height = rect.bottom - rect.top;

+    }

+    else { /* Memory context */

+        /* From contributed code - use the size of the desktop

+         * for the size of a memory context (?) */

+        *width = GetDeviceCaps(hdc, HORZRES);

+        *height = GetDeviceCaps(hdc, VERTRES);

+    }

+}

+

+

+static void

+wmesa_get_buffer_size(struct gl_framebuffer *buffer, GLuint *width, GLuint *height)

+{

+    WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);

+    get_window_size(pwfb->hDC, width, height);

+}

+

+

+static void wmesa_flush(struct gl_context *ctx)

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->WinSysDrawBuffer);

+

+    if (ctx->Visual.doubleBufferMode == 1) {

+	BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,

+	       pwfb->dib_hDC, 0, 0, SRCCOPY);

+    }

+    else {

+	/* Do nothing for single buffer */

+    }

+}

+

+

+/**********************************************************************/

+/*****                   CLEAR Functions                          *****/

+/**********************************************************************/

+

+/* If we do not implement these, Mesa clears the buffers via the pixel

+ * span writing interface, which is very slow for a clear operation.

+ */

+

+/*

+ * Set the color used to clear the color buffer.

+ */

+static void clear_color(struct gl_context *ctx, const GLfloat color[4])

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLubyte col[3];

+    UINT    bytesPerPixel = pwfb->cColorBits / 8; 

+

+    CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);

+    CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);

+    CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);

+    pwc->clearColorRef = RGB(col[0], col[1], col[2]);

+    DeleteObject(pwc->clearPen);

+    DeleteObject(pwc->clearBrush);

+    pwc->clearPen = CreatePen(PS_SOLID, 1, pwc->clearColorRef); 

+    pwc->clearBrush = CreateSolidBrush(pwc->clearColorRef); 

+}

+

+

+/* 

+ * Clear the specified region of the color buffer using the clear color 

+ * or index as specified by one of the two functions above. 

+ * 

+ * This procedure clears either the front and/or the back COLOR buffers. 

+ * Only the "left" buffer is cleared since we are not stereo. 

+ * Clearing of the other non-color buffers is left to the swrast. 

+ */ 

+

+static void clear(struct gl_context *ctx, GLbitfield mask)

+{

+#define FLIP(Y)  (ctx->DrawBuffer->Height - (Y) - 1)

+    const GLint x = ctx->DrawBuffer->_Xmin;

+    const GLint y = ctx->DrawBuffer->_Ymin;

+    const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;

+    const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;

+

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    int done = 0;

+

+    /* Let swrast do all the work if the masks are not set to

+     * clear all channels. */

+    if (!ctx->Color.ColorMask[0][0] ||

+	!ctx->Color.ColorMask[0][1] ||

+	!ctx->Color.ColorMask[0][2] ||

+	!ctx->Color.ColorMask[0][3]) {

+	_swrast_Clear(ctx, mask);

+	return;

+    }

+

+    /* Back buffer */

+    if (mask & BUFFER_BIT_BACK_LEFT) { 

+	

+	int     i, rowSize; 

+	UINT    bytesPerPixel = pwfb->cColorBits / 8; 

+	LPBYTE  lpb, clearRow;

+	LPWORD  lpw;

+	BYTE    bColor; 

+	WORD    wColor; 

+	BYTE    r, g, b; 

+	DWORD   dwColor; 

+	LPDWORD lpdw; 

+	

+	/* Try for a fast clear - clearing entire buffer with a single

+	 * byte value. */

+	if (width == ctx->DrawBuffer->Width &&

+            height == ctx->DrawBuffer->Height) { /* entire buffer */

+	    /* Now check for an easy clear value */

+	    switch (bytesPerPixel) {

+	    case 1:

+		bColor = BGR8(GetRValue(pwc->clearColorRef), 

+			      GetGValue(pwc->clearColorRef), 

+			      GetBValue(pwc->clearColorRef));

+		memset(pwfb->pbPixels, bColor, 

+		       pwfb->ScanWidth * height);

+		done = 1;

+		break;

+	    case 2:

+		wColor = BGR16(GetRValue(pwc->clearColorRef), 

+			       GetGValue(pwc->clearColorRef), 

+			       GetBValue(pwc->clearColorRef)); 

+		if (((wColor >> 8) & 0xff) == (wColor & 0xff)) {

+		    memset(pwfb->pbPixels, wColor & 0xff, 

+			   pwfb->ScanWidth * height);

+		    done = 1;

+		}

+		break;

+	    case 3:

+		/* fall through */

+	    case 4:

+		if (GetRValue(pwc->clearColorRef) == 

+		    GetGValue(pwc->clearColorRef) &&

+		    GetRValue(pwc->clearColorRef) == 

+		    GetBValue(pwc->clearColorRef)) {

+		    memset(pwfb->pbPixels, 

+			   GetRValue(pwc->clearColorRef), 

+			   pwfb->ScanWidth * height);

+		    done = 1;

+		}

+		break;

+	    default:

+		break;

+	    }

+	} /* all */

+

+	if (!done) {

+	    /* Need to clear a row at a time.  Begin by setting the first

+	     * row in the area to be cleared to the clear color. */

+	    

+	    clearRow = pwfb->pbPixels + 

+		pwfb->ScanWidth * FLIP(y) +

+		bytesPerPixel * x; 

+	    switch (bytesPerPixel) {

+	    case 1:

+		lpb = clearRow;

+		bColor = BGR8(GetRValue(pwc->clearColorRef), 

+			      GetGValue(pwc->clearColorRef), 

+			      GetBValue(pwc->clearColorRef));

+		memset(lpb, bColor, width);

+		break;

+	    case 2:

+		lpw = (LPWORD)clearRow;

+		wColor = BGR16(GetRValue(pwc->clearColorRef), 

+			       GetGValue(pwc->clearColorRef), 

+			       GetBValue(pwc->clearColorRef)); 

+		for (i=0; i<width; i++)

+		    *lpw++ = wColor;

+		break;

+	    case 3: 

+		lpb = clearRow;

+		r = GetRValue(pwc->clearColorRef); 

+		g = GetGValue(pwc->clearColorRef); 

+		b = GetBValue(pwc->clearColorRef); 

+		for (i=0; i<width; i++) {

+		    *lpb++ = b; 

+		    *lpb++ = g; 

+		    *lpb++ = r; 

+		} 

+		break;

+	    case 4: 

+		lpdw = (LPDWORD)clearRow; 

+		dwColor = BGR32(GetRValue(pwc->clearColorRef), 

+				GetGValue(pwc->clearColorRef), 

+				GetBValue(pwc->clearColorRef)); 

+		for (i=0; i<width; i++)

+		    *lpdw++ = dwColor;

+		break;

+	    default:

+		break;

+	    } /* switch */

+	    

+	    /* copy cleared row to other rows in buffer */

+	    lpb = clearRow - pwfb->ScanWidth;

+	    rowSize = width * bytesPerPixel;

+	    for (i=1; i<height; i++) { 

+		memcpy(lpb, clearRow, rowSize); 

+		lpb -= pwfb->ScanWidth; 

+	    } 

+	} /* not done */

+	mask &= ~BUFFER_BIT_BACK_LEFT;

+    } /* back buffer */ 

+

+    /* front buffer */

+    if (mask & BUFFER_BIT_FRONT_LEFT) { 

+	HDC DC = pwc->hDC; 

+	HPEN Old_Pen = SelectObject(DC, pwc->clearPen); 

+	HBRUSH Old_Brush = SelectObject(DC, pwc->clearBrush);

+	Rectangle(DC,

+		  x,

+		  FLIP(y) + 1,

+		  x + width + 1,

+		  FLIP(y) - height + 1);

+	SelectObject(DC, Old_Pen); 

+	SelectObject(DC, Old_Brush); 

+	mask &= ~BUFFER_BIT_FRONT_LEFT;

+    } /* front buffer */ 

+    

+    /* Call swrast if there is anything left to clear (like DEPTH) */ 

+    if (mask) 

+	_swrast_Clear(ctx, mask);

+  

+#undef FLIP

+} 

+

+

+/**********************************************************************/

+/*****                   PIXEL Functions                          *****/

+/**********************************************************************/

+

+#define FLIP(Y)  (rb->Height - (Y) - 1)

+

+

+/**

+ ** Front Buffer reading/writing

+ ** These are slow, but work with all non-indexed visual types.

+ **/

+

+/* Write a horizontal span of RGBA color pixels with a boolean mask. */

+static void write_rgba_span_front(const struct gl_context *ctx, 

+				   struct gl_renderbuffer *rb, 

+				   GLuint n, GLint x, GLint y,

+				   const GLubyte rgba[][4], 

+				   const GLubyte mask[] )

+{

+   WMesaContext pwc = wmesa_context(ctx);

+   WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(pwc->hDC);

+   CONST BITMAPINFO bmi=

+   {

+      {

+         sizeof(BITMAPINFOHEADER),

+         n, 1, 1, 32, BI_RGB, 0, 1, 1, 0, 0

+      }

+   };

+   HBITMAP bmp=0;

+   HDC mdc=0;

+   typedef union

+   {

+      unsigned i;

+      struct {

+         unsigned b:8, g:8, r:8, a:8;

+      };

+   } BGRA;

+   BGRA *bgra, c;

+   GLuint i;

+

+   if (n < 16) {   // the value 16 is just guessed

+      y=FLIP(y);

+      if (mask) {

+         for (i=0; i<n; i++)

+            if (mask[i])

+               SetPixel(pwc->hDC, x+i, y,

+                        RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));

+      }

+      else {

+         for (i=0; i<n; i++)

+            SetPixel(pwc->hDC, x+i, y,

+                     RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));

+      }

+   }

+   else {

+      if (!pwfb) {

+         _mesa_problem(NULL, "wmesa: write_rgba_span_front on unknown hdc");

+         return;

+      }

+      bgra=malloc(n*sizeof(BGRA));

+      if (!bgra) {

+         _mesa_problem(NULL, "wmesa: write_rgba_span_front: out of memory");

+         return;

+      }

+      c.a=0;

+      if (mask) {

+         for (i=0; i<n; i++) {

+            if (mask[i]) {

+               c.r=rgba[i][RCOMP];

+               c.g=rgba[i][GCOMP];

+               c.b=rgba[i][BCOMP];

+               c.a=rgba[i][ACOMP];

+               bgra[i]=c;

+            }

+            else

+               bgra[i].i=0;

+         }

+      }

+      else {

+         for (i=0; i<n; i++) {

+            c.r=rgba[i][RCOMP];

+            c.g=rgba[i][GCOMP];

+            c.b=rgba[i][BCOMP];

+            c.a=rgba[i][ACOMP];

+            bgra[i]=c;

+         }

+      }

+      bmp=CreateBitmap(n, 1,  1, 32, bgra);

+      mdc=CreateCompatibleDC(pwfb->hDC);

+      SelectObject(mdc, bmp);

+      y=FLIP(y);

+      BitBlt(pwfb->hDC, x, y, n, 1, mdc, 0, 0, SRCCOPY);

+      SelectObject(mdc, 0);

+      DeleteObject(bmp);

+      DeleteDC(mdc);

+      free(bgra);

+   }

+}

+

+/* Write a horizontal span of RGB color pixels with a boolean mask. */

+static void write_rgb_span_front(const struct gl_context *ctx, 

+				  struct gl_renderbuffer *rb, 

+				  GLuint n, GLint x, GLint y,

+				  const GLubyte rgb[][3], 

+				  const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    GLuint i;

+    

+    (void) ctx;

+    y=FLIP(y);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+		SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP], 

+					       rgb[i][BCOMP]));

+    }

+    else {

+	for (i=0; i<n; i++)

+	    SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP], 

+					   rgb[i][BCOMP]));

+    }

+    

+}

+

+/*

+ * Write a horizontal span of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_span_front(const struct gl_context *ctx, 

+					struct gl_renderbuffer *rb,

+					GLuint n, GLint x, GLint y,

+					const GLchan color[4], 

+					const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    COLORREF colorref;

+

+    (void) ctx;

+    colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);

+    y=FLIP(y);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+		SetPixel(pwc->hDC, x+i, y, colorref);

+    }

+    else

+	for (i=0; i<n; i++)

+	    SetPixel(pwc->hDC, x+i, y, colorref);

+

+}

+

+/* Write an array of RGBA pixels with a boolean mask. */

+static void write_rgba_pixels_front(const struct gl_context *ctx, 

+				     struct gl_renderbuffer *rb,

+				     GLuint n, 

+				     const GLint x[], const GLint y[],

+				     const GLubyte rgba[][4], 

+				     const GLubyte mask[] )

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    (void) ctx;

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    SetPixel(pwc->hDC, x[i], FLIP(y[i]), 

+		     RGB(rgba[i][RCOMP], rgba[i][GCOMP], 

+			 rgba[i][BCOMP]));

+}

+

+

+

+/*

+ * Write an array of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_pixels_front(const struct gl_context *ctx, 

+					  struct gl_renderbuffer *rb,

+					  GLuint n,

+					  const GLint x[], const GLint y[],

+					  const GLchan color[4],

+					  const GLubyte mask[] )

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    COLORREF colorref;

+    (void) ctx;

+    colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    SetPixel(pwc->hDC, x[i], FLIP(y[i]), colorref);

+}

+

+/* Read a horizontal span of color pixels. */

+static void read_rgba_span_front(const struct gl_context *ctx, 

+				  struct gl_renderbuffer *rb,

+				  GLuint n, GLint x, GLint y,

+				  GLubyte rgba[][4] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    GLuint i;

+    COLORREF Color;

+    y = FLIP(y);

+    for (i=0; i<n; i++) {

+	Color = GetPixel(pwc->hDC, x+i, y);

+	rgba[i][RCOMP] = GetRValue(Color);

+	rgba[i][GCOMP] = GetGValue(Color);

+	rgba[i][BCOMP] = GetBValue(Color);

+	rgba[i][ACOMP] = 255;

+    }

+}

+

+

+/* Read an array of color pixels. */

+static void read_rgba_pixels_front(const struct gl_context *ctx, 

+				    struct gl_renderbuffer *rb,

+				    GLuint n, const GLint x[], const GLint y[],

+				    GLubyte rgba[][4])

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    GLuint i;

+    COLORREF Color;

+    for (i=0; i<n; i++) {

+        GLint y2 = FLIP(y[i]);

+        Color = GetPixel(pwc->hDC, x[i], y2);

+        rgba[i][RCOMP] = GetRValue(Color);

+        rgba[i][GCOMP] = GetGValue(Color);

+        rgba[i][BCOMP] = GetBValue(Color);

+        rgba[i][ACOMP] = 255;

+    }

+}

+

+/*********************************************************************/

+

+/* DOUBLE BUFFER 32-bit */

+

+#define WMSETPIXEL32(pwc, y, x, r, g, b) { \

+LPDWORD lpdw = ((LPDWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \

+*lpdw = BGR32((r),(g),(b)); }

+

+

+

+/* Write a horizontal span of RGBA color pixels with a boolean mask. */

+static void write_rgba_span_32(const struct gl_context *ctx, 

+			       struct gl_renderbuffer *rb, 

+			       GLuint n, GLint x, GLint y,

+			       const GLubyte rgba[][4], 

+			       const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLuint i;

+    LPDWORD lpdw;

+

+    (void) ctx;

+    

+    y=FLIP(y);

+    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+                lpdw[i] = BGR32(rgba[i][RCOMP], rgba[i][GCOMP], 

+				rgba[i][BCOMP]);

+    }

+    else {

+	for (i=0; i<n; i++)

+                *lpdw++ = BGR32(rgba[i][RCOMP], rgba[i][GCOMP], 

+				rgba[i][BCOMP]);

+    }

+}

+

+

+/* Write a horizontal span of RGB color pixels with a boolean mask. */

+static void write_rgb_span_32(const struct gl_context *ctx, 

+			      struct gl_renderbuffer *rb, 

+			      GLuint n, GLint x, GLint y,

+			      const GLubyte rgb[][3], 

+			      const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLuint i;

+    LPDWORD lpdw;

+

+    (void) ctx;

+    

+    y=FLIP(y);

+    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+                lpdw[i] = BGR32(rgb[i][RCOMP], rgb[i][GCOMP], 

+				rgb[i][BCOMP]);

+    }

+    else {

+	for (i=0; i<n; i++)

+                *lpdw++ = BGR32(rgb[i][RCOMP], rgb[i][GCOMP], 

+				rgb[i][BCOMP]);

+    }

+}

+

+/*

+ * Write a horizontal span of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_span_32(const struct gl_context *ctx, 

+				    struct gl_renderbuffer *rb,

+				    GLuint n, GLint x, GLint y,

+				    const GLchan color[4], 

+				    const GLubyte mask[])

+{

+    LPDWORD lpdw;

+    DWORD pixel;

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    y=FLIP(y);

+    pixel = BGR32(color[RCOMP], color[GCOMP], color[BCOMP]);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+                lpdw[i] = pixel;

+    }

+    else

+	for (i=0; i<n; i++)

+                *lpdw++ = pixel;

+

+}

+

+/* Write an array of RGBA pixels with a boolean mask. */

+static void write_rgba_pixels_32(const struct gl_context *ctx, 

+				 struct gl_renderbuffer *rb,

+				 GLuint n, const GLint x[], const GLint y[],

+				 const GLubyte rgba[][4], 

+				 const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    WMSETPIXEL32(pwfb, FLIP(y[i]), x[i],

+			 rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);

+}

+

+/*

+ * Write an array of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_pixels_32(const struct gl_context *ctx, 

+				      struct gl_renderbuffer *rb,

+				      GLuint n,

+				      const GLint x[], const GLint y[],

+				      const GLchan color[4],

+				      const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    WMSETPIXEL32(pwfb, FLIP(y[i]),x[i],color[RCOMP],

+			 color[GCOMP], color[BCOMP]);

+}

+

+/* Read a horizontal span of color pixels. */

+static void read_rgba_span_32(const struct gl_context *ctx, 

+			      struct gl_renderbuffer *rb,

+			      GLuint n, GLint x, GLint y,

+			      GLubyte rgba[][4] )

+{

+    GLuint i;

+    DWORD pixel;

+    LPDWORD lpdw;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    

+    y = FLIP(y);

+    lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    for (i=0; i<n; i++) {

+	pixel = lpdw[i];

+	rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);

+	rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);

+	rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);

+	rgba[i][ACOMP] = 255;

+    }

+}

+

+

+/* Read an array of color pixels. */

+static void read_rgba_pixels_32(const struct gl_context *ctx, 

+				struct gl_renderbuffer *rb,

+				GLuint n, const GLint x[], const GLint y[],

+				GLubyte rgba[][4])

+{

+    GLuint i;

+    DWORD pixel;

+    LPDWORD lpdw;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+

+    for (i=0; i<n; i++) {

+	GLint y2 = FLIP(y[i]);

+	lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];

+	pixel = *lpdw;

+	rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);

+	rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);

+	rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);

+	rgba[i][ACOMP] = 255;

+  }

+}

+

+

+/*********************************************************************/

+

+/* DOUBLE BUFFER 24-bit */

+

+#define WMSETPIXEL24(pwc, y, x, r, g, b) { \

+LPBYTE lpb = ((LPBYTE)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (3 * x)); \

+lpb[0] = (b); \

+lpb[1] = (g); \

+lpb[2] = (r); }

+

+/* Write a horizontal span of RGBA color pixels with a boolean mask. */

+static void write_rgba_span_24(const struct gl_context *ctx, 

+			       struct gl_renderbuffer *rb, 

+			       GLuint n, GLint x, GLint y,

+			       const GLubyte rgba[][4], 

+			       const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLuint i;

+    LPBYTE lpb;

+

+    (void) ctx;

+    

+    y=FLIP(y);

+    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i]) {

+                lpb[3*i] = rgba[i][BCOMP];

+                lpb[3*i+1] = rgba[i][GCOMP];

+                lpb[3*i+2] = rgba[i][RCOMP];

+	    }

+    }

+    else {

+	    for (i=0; i<n; i++) {

+            *lpb++ = rgba[i][BCOMP];

+            *lpb++ = rgba[i][GCOMP];

+            *lpb++ = rgba[i][RCOMP];

+	    }

+    }

+}

+

+

+/* Write a horizontal span of RGB color pixels with a boolean mask. */

+static void write_rgb_span_24(const struct gl_context *ctx, 

+			      struct gl_renderbuffer *rb, 

+			      GLuint n, GLint x, GLint y,

+			      const GLubyte rgb[][3], 

+			      const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLuint i;

+    LPBYTE lpb;

+

+    (void) ctx;

+    

+    y=FLIP(y);

+    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i]) {

+            lpb[3*i] = rgb[i][BCOMP];

+            lpb[3*i+1] = rgb[i][GCOMP];

+            lpb[3*i+2] = rgb[i][RCOMP];

+	    }

+    }

+    else {

+    	for (i=0; i<n; i++) {

+    		*lpb++ = rgb[i][BCOMP];

+    		*lpb++ = rgb[i][GCOMP];

+    		*lpb++ = rgb[i][RCOMP];

+    	}

+    }

+}

+

+/*

+ * Write a horizontal span of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_span_24(const struct gl_context *ctx, 

+				    struct gl_renderbuffer *rb,

+				    GLuint n, GLint x, GLint y,

+				    const GLchan color[4], 

+				    const GLubyte mask[])

+{

+    LPBYTE lpb;

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);

+    y=FLIP(y);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i]) {

+	    	lpb[3*i] = color[BCOMP];

+	    	lpb[3*i+1] = color[GCOMP];

+	    	lpb[3*i+2] = color[RCOMP];

+	    }

+    }

+    else

+	for (i=0; i<n; i++) {

+		*lpb++ = color[BCOMP];

+		*lpb++ = color[GCOMP];

+		*lpb++ = color[RCOMP];		

+	}

+}

+

+/* Write an array of RGBA pixels with a boolean mask. */

+static void write_rgba_pixels_24(const struct gl_context *ctx, 

+				 struct gl_renderbuffer *rb,

+				 GLuint n, const GLint x[], const GLint y[],

+				 const GLubyte rgba[][4], 

+				 const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    WMSETPIXEL24(pwfb, FLIP(y[i]), x[i],

+			 rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);

+}

+

+/*

+ * Write an array of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_pixels_24(const struct gl_context *ctx, 

+				      struct gl_renderbuffer *rb,

+				      GLuint n,

+				      const GLint x[], const GLint y[],

+				      const GLchan color[4],

+				      const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    WMSETPIXEL24(pwfb, FLIP(y[i]),x[i],color[RCOMP],

+			 color[GCOMP], color[BCOMP]);

+}

+

+/* Read a horizontal span of color pixels. */

+static void read_rgba_span_24(const struct gl_context *ctx, 

+			      struct gl_renderbuffer *rb,

+			      GLuint n, GLint x, GLint y,

+			      GLubyte rgba[][4] )

+{

+    GLuint i;

+    LPBYTE lpb;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    

+    y = FLIP(y);

+    lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);

+    for (i=0; i<n; i++) {

+	rgba[i][RCOMP] = lpb[3*i+2];

+	rgba[i][GCOMP] = lpb[3*i+1];

+	rgba[i][BCOMP] = lpb[3*i];

+	rgba[i][ACOMP] = 255;

+    }

+}

+

+

+/* Read an array of color pixels. */

+static void read_rgba_pixels_24(const struct gl_context *ctx, 

+				struct gl_renderbuffer *rb,

+				GLuint n, const GLint x[], const GLint y[],

+				GLubyte rgba[][4])

+{

+    GLuint i;

+    LPBYTE lpb;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+

+    for (i=0; i<n; i++) {

+	GLint y2 = FLIP(y[i]);

+	lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + (3 * x[i]);

+	rgba[i][RCOMP] = lpb[3*i+2];

+	rgba[i][GCOMP] = lpb[3*i+1];

+	rgba[i][BCOMP] = lpb[3*i];

+	rgba[i][ACOMP] = 255;

+  }

+}

+

+

+/*********************************************************************/

+

+/* DOUBLE BUFFER 16-bit */

+

+#define WMSETPIXEL16(pwc, y, x, r, g, b) { \

+LPWORD lpw = ((LPWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \

+*lpw = BGR16((r),(g),(b)); }

+

+

+

+/* Write a horizontal span of RGBA color pixels with a boolean mask. */

+static void write_rgba_span_16(const struct gl_context *ctx, 

+			       struct gl_renderbuffer *rb, 

+			       GLuint n, GLint x, GLint y,

+			       const GLubyte rgba[][4], 

+			       const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLuint i;

+    LPWORD lpw;

+

+    (void) ctx;

+    

+    y=FLIP(y);

+    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+                lpw[i] = BGR16(rgba[i][RCOMP], rgba[i][GCOMP], 

+			       rgba[i][BCOMP]);

+    }

+    else {

+	for (i=0; i<n; i++)

+                *lpw++ = BGR16(rgba[i][RCOMP], rgba[i][GCOMP], 

+			       rgba[i][BCOMP]);

+    }

+}

+

+

+/* Write a horizontal span of RGB color pixels with a boolean mask. */

+static void write_rgb_span_16(const struct gl_context *ctx, 

+			      struct gl_renderbuffer *rb, 

+			      GLuint n, GLint x, GLint y,

+			      const GLubyte rgb[][3], 

+			      const GLubyte mask[] )

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    GLuint i;

+    LPWORD lpw;

+

+    (void) ctx;

+    

+    y=FLIP(y);

+    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+                lpw[i] = BGR16(rgb[i][RCOMP], rgb[i][GCOMP], 

+			       rgb[i][BCOMP]);

+    }

+    else {

+	for (i=0; i<n; i++)

+                *lpw++ = BGR16(rgb[i][RCOMP], rgb[i][GCOMP], 

+			       rgb[i][BCOMP]);

+    }

+}

+

+/*

+ * Write a horizontal span of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_span_16(const struct gl_context *ctx, 

+				    struct gl_renderbuffer *rb,

+				    GLuint n, GLint x, GLint y,

+				    const GLchan color[4], 

+				    const GLubyte mask[])

+{

+    LPWORD lpw;

+    WORD pixel;

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    (void) ctx;

+    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    y=FLIP(y);

+    pixel = BGR16(color[RCOMP], color[GCOMP], color[BCOMP]);

+    if (mask) {

+	for (i=0; i<n; i++)

+	    if (mask[i])

+                lpw[i] = pixel;

+    }

+    else

+	for (i=0; i<n; i++)

+                *lpw++ = pixel;

+

+}

+

+/* Write an array of RGBA pixels with a boolean mask. */

+static void write_rgba_pixels_16(const struct gl_context *ctx, 

+				 struct gl_renderbuffer *rb,

+				 GLuint n, const GLint x[], const GLint y[],

+				 const GLubyte rgba[][4], 

+				 const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    (void) ctx;

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    WMSETPIXEL16(pwfb, FLIP(y[i]), x[i],

+			 rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);

+}

+

+/*

+ * Write an array of pixels with a boolean mask.  The current color

+ * is used for all pixels.

+ */

+static void write_mono_rgba_pixels_16(const struct gl_context *ctx, 

+				      struct gl_renderbuffer *rb,

+				      GLuint n,

+				      const GLint x[], const GLint y[],

+				      const GLchan color[4],

+				      const GLubyte mask[])

+{

+    GLuint i;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    (void) ctx;

+    for (i=0; i<n; i++)

+	if (mask[i])

+	    WMSETPIXEL16(pwfb, FLIP(y[i]),x[i],color[RCOMP],

+			 color[GCOMP], color[BCOMP]);

+}

+

+/* Read a horizontal span of color pixels. */

+static void read_rgba_span_16(const struct gl_context *ctx, 

+			      struct gl_renderbuffer *rb,

+			      GLuint n, GLint x, GLint y,

+			      GLubyte rgba[][4] )

+{

+    GLuint i, pixel;

+    LPWORD lpw;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+    

+    y = FLIP(y);

+    lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;

+    for (i=0; i<n; i++) {

+	pixel = lpw[i];

+	/* Windows uses 5,5,5 for 16-bit */

+	rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;

+	rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;

+	rgba[i][BCOMP] = (pixel & 0x001f) << 3;

+	rgba[i][ACOMP] = 255;

+    }

+}

+

+

+/* Read an array of color pixels. */

+static void read_rgba_pixels_16(const struct gl_context *ctx, 

+				struct gl_renderbuffer *rb,

+				GLuint n, const GLint x[], const GLint y[],

+				GLubyte rgba[][4])

+{

+    GLuint i, pixel;

+    LPWORD lpw;

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);

+

+    for (i=0; i<n; i++) {

+	GLint y2 = FLIP(y[i]);

+	lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];

+	pixel = *lpw;

+	/* Windows uses 5,5,5 for 16-bit */

+	rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;

+	rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;

+	rgba[i][BCOMP] = (pixel & 0x001f) << 3;

+	rgba[i][ACOMP] = 255;

+  }

+}

+

+

+

+

+/**********************************************************************/

+/*****                   BUFFER Functions                         *****/

+/**********************************************************************/

+

+

+

+

+static void

+wmesa_delete_renderbuffer(struct gl_renderbuffer *rb)

+{

+    free(rb);

+}

+

+

+/**

+ * This is called by Mesa whenever it determines that the window size

+ * has changed.  Do whatever's needed to cope with that.

+ */

+static GLboolean

+wmesa_renderbuffer_storage(struct gl_context *ctx, 

+			   struct gl_renderbuffer *rb,

+			   GLenum internalFormat, 

+			   GLuint width, 

+			   GLuint height)

+{

+    rb->Width = width;

+    rb->Height = height;

+    return GL_TRUE;

+}

+

+

+/**

+ * Plug in the Get/PutRow/Values functions for a renderbuffer depending

+ * on if we're drawing to the front or back color buffer.

+ */

+void wmesa_set_renderbuffer_funcs(struct gl_renderbuffer *rb, int pixelformat,

+                                  int cColorBits, int double_buffer)

+{

+    if (double_buffer) {

+        /* back buffer */

+	/* Picking the correct span functions is important because

+	 * the DIB was allocated with the indicated depth. */

+	switch(pixelformat) {

+	case PF_5R6G5B:

+	    rb->PutRow = write_rgba_span_16;

+	    rb->PutRowRGB = write_rgb_span_16;

+	    rb->PutMonoRow = write_mono_rgba_span_16;

+	    rb->PutValues = write_rgba_pixels_16;

+	    rb->PutMonoValues = write_mono_rgba_pixels_16;

+	    rb->GetRow = read_rgba_span_16;

+	    rb->GetValues = read_rgba_pixels_16;

+	    break;

+	case PF_8R8G8B:

+		if (cColorBits == 24)

+		{

+		    rb->PutRow = write_rgba_span_24;

+		    rb->PutRowRGB = write_rgb_span_24;

+		    rb->PutMonoRow = write_mono_rgba_span_24;

+		    rb->PutValues = write_rgba_pixels_24;

+		    rb->PutMonoValues = write_mono_rgba_pixels_24;

+		    rb->GetRow = read_rgba_span_24;

+		    rb->GetValues = read_rgba_pixels_24;

+		}

+		else

+		{

+	        rb->PutRow = write_rgba_span_32;

+	        rb->PutRowRGB = write_rgb_span_32;

+	        rb->PutMonoRow = write_mono_rgba_span_32;

+	        rb->PutValues = write_rgba_pixels_32;

+	        rb->PutMonoValues = write_mono_rgba_pixels_32;

+	        rb->GetRow = read_rgba_span_32;

+	        rb->GetValues = read_rgba_pixels_32;

+		}

+	    break;

+	default:

+	    break;

+	}

+    }

+    else {

+        /* front buffer (actual Windows window) */

+	rb->PutRow = write_rgba_span_front;

+	rb->PutRowRGB = write_rgb_span_front;

+	rb->PutMonoRow = write_mono_rgba_span_front;

+	rb->PutValues = write_rgba_pixels_front;

+	rb->PutMonoValues = write_mono_rgba_pixels_front;

+	rb->GetRow = read_rgba_span_front;

+	rb->GetValues = read_rgba_pixels_front;

+    }

+}

+

+/**

+ * Called by ctx->Driver.ResizeBuffers()

+ * Resize the front/back colorbuffers to match the latest window size.

+ */

+static void

+wmesa_resize_buffers(struct gl_context *ctx, struct gl_framebuffer *buffer,

+                     GLuint width, GLuint height)

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);

+

+    if (pwfb->Base.Width != width || pwfb->Base.Height != height) {

+	/* Realloc back buffer */

+	if (ctx->Visual.doubleBufferMode == 1) {

+	    wmDeleteBackingStore(pwfb);

+	    wmCreateBackingStore(pwfb, width, height);

+	}

+    }

+    _mesa_resize_framebuffer(ctx, buffer, width, height);

+}

+

+

+/**

+ * Called by glViewport.

+ * This is a good time for us to poll the current window size and adjust

+ * our renderbuffers to match the current window size.

+ * Remember, we have no opportunity to respond to conventional

+ * resize events since the driver has no event loop.

+ * Thus, we poll.

+ * MakeCurrent also ends up making a call here, so that ensures

+ * we get the viewport set correctly, even if the app does not call

+ * glViewport and relies on the defaults.

+ */

+static void wmesa_viewport(struct gl_context *ctx, 

+			   GLint x, GLint y, 

+			   GLsizei width, GLsizei height)

+{

+    WMesaContext pwc = wmesa_context(ctx);

+    GLuint new_width, new_height;

+

+    wmesa_get_buffer_size(ctx->WinSysDrawBuffer, &new_width, &new_height);

+

+    /**

+     * Resize buffers if the window size changed.

+     */

+    wmesa_resize_buffers(ctx, ctx->WinSysDrawBuffer, new_width, new_height);

+    ctx->NewState |= _NEW_BUFFERS;  /* to update scissor / window bounds */

+}

+

+

+

+

+/**

+ * Called when the driver should update it's state, based on the new_state

+ * flags.

+ */

+static void wmesa_update_state(struct gl_context *ctx, GLuint new_state)

+{

+    _swrast_InvalidateState(ctx, new_state);

+    _swsetup_InvalidateState(ctx, new_state);

+    _vbo_InvalidateState(ctx, new_state);

+    _tnl_InvalidateState(ctx, new_state);

+

+    /* TODO - This code is not complete yet because I 

+     * don't know what to do for all state updates.

+     */

+

+    if (new_state & _NEW_BUFFERS) {

+    }

+}

+

+

+

+

+

+/**********************************************************************/

+/*****                   WMESA Functions                          *****/

+/**********************************************************************/

+

+WMesaContext WMesaCreateContext(HDC hDC, 

+				HPALETTE* Pal,

+				GLboolean rgb_flag,

+				GLboolean db_flag,

+				GLboolean alpha_flag)

+{

+    WMesaContext c;

+    struct dd_function_table functions;

+    GLint red_bits, green_bits, blue_bits, alpha_bits;

+    struct gl_context *ctx;

+    struct gl_config *visual;

+

+    (void) Pal;

+    

+    /* Indexed mode not supported */

+    if (!rgb_flag)

+	return NULL;

+

+    /* Allocate wmesa context */

+    c = CALLOC_STRUCT(wmesa_context);

+    if (!c)

+	return NULL;

+

+#if 0

+    /* I do not understand this contributed code */

+    /* Support memory and device contexts */

+    if(WindowFromDC(hDC) != NULL) {

+	c->hDC = GetDC(WindowFromDC(hDC)); /* huh ???? */

+    }

+    else {

+	c->hDC = hDC;

+    }

+#else

+    c->hDC = hDC;

+#endif

+

+    /* Get data for visual */

+    /* Dealing with this is actually a bit of overkill because Mesa will end

+     * up treating all color component size requests less than 8 by using 

+     * a single byte per channel.  In addition, the interface to the span

+     * routines passes colors as an entire byte per channel anyway, so there

+     * is nothing to be saved by telling the visual to be 16 bits if the device

+     * is 16 bits.  That is, Mesa is going to compute colors down to 8 bits per

+     * channel anyway.

+     * But we go through the motions here anyway.

+     */

+    switch (GetDeviceCaps(c->hDC, BITSPIXEL)) {

+    case 16:

+	red_bits = green_bits = blue_bits = 5;

+	alpha_bits = 0;

+	break;

+    default:

+	red_bits = green_bits = blue_bits = 8;

+	alpha_bits = 8;

+	break;

+    }

+    /* Create visual based on flags */

+    visual = _mesa_create_visual(db_flag,    /* db_flag */

+                                 GL_FALSE,   /* stereo */

+                                 red_bits, green_bits, blue_bits, /* color RGB */

+                                 alpha_flag ? alpha_bits : 0, /* color A */

+                                 DEFAULT_SOFTWARE_DEPTH_BITS, /* depth_bits */

+                                 8,          /* stencil_bits */

+                                 16,16,16,   /* accum RGB */

+                                 alpha_flag ? 16 : 0, /* accum A */

+                                 1);         /* num samples */

+    

+    if (!visual) {

+	free(c);

+	return NULL;

+    }

+

+    /* Set up driver functions */

+    _mesa_init_driver_functions(&functions);

+    functions.GetString = wmesa_get_string;

+    functions.UpdateState = wmesa_update_state;

+    functions.GetBufferSize = wmesa_get_buffer_size;

+    functions.Flush = wmesa_flush;

+    functions.Clear = clear;

+    functions.ClearColor = clear_color;

+    functions.ResizeBuffers = wmesa_resize_buffers;

+    functions.Viewport = wmesa_viewport;

+

+    /* initialize the Mesa context data */

+    ctx = &c->gl_ctx;

+    _mesa_initialize_context(ctx, API_OPENGL, visual,

+                             NULL, &functions, (void *)c);

+

+    /* visual no longer needed - it was copied by _mesa_initialize_context() */

+    _mesa_destroy_visual(visual);

+

+    _mesa_enable_sw_extensions(ctx);

+    _mesa_enable_1_3_extensions(ctx);

+    _mesa_enable_1_4_extensions(ctx);

+    _mesa_enable_1_5_extensions(ctx);

+    _mesa_enable_2_0_extensions(ctx);

+    _mesa_enable_2_1_extensions(ctx);

+  

+    _mesa_meta_init(ctx);

+

+    /* Initialize the software rasterizer and helper modules. */

+    if (!_swrast_CreateContext(ctx) ||

+        !_vbo_CreateContext(ctx) ||

+        !_tnl_CreateContext(ctx) ||

+	!_swsetup_CreateContext(ctx)) {

+	_mesa_free_context_data(ctx);

+	free(c);

+	return NULL;

+    }

+    _swsetup_Wakeup(ctx);

+    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;

+

+    return c;

+}

+

+

+void WMesaDestroyContext( WMesaContext pwc )

+{

+    struct gl_context *ctx = &pwc->gl_ctx;

+    WMesaFramebuffer pwfb;

+    GET_CURRENT_CONTEXT(cur_ctx);

+

+    if (cur_ctx == ctx) {

+        /* unbind current if deleting current context */

+        WMesaMakeCurrent(NULL, NULL);

+    }

+

+    /* clean up frame buffer resources */

+    pwfb = wmesa_lookup_framebuffer(pwc->hDC);

+    if (pwfb) {

+	if (ctx->Visual.doubleBufferMode == 1)

+	    wmDeleteBackingStore(pwfb);

+	wmesa_free_framebuffer(pwc->hDC);

+    }

+

+    /* Release for device, not memory contexts */

+    if (WindowFromDC(pwc->hDC) != NULL)

+    {

+      ReleaseDC(WindowFromDC(pwc->hDC), pwc->hDC);

+    }

+    DeleteObject(pwc->clearPen); 

+    DeleteObject(pwc->clearBrush); 

+    

+    _mesa_meta_free(ctx);

+

+    _swsetup_DestroyContext(ctx);

+    _tnl_DestroyContext(ctx);

+    _vbo_DestroyContext(ctx);

+    _swrast_DestroyContext(ctx);

+    

+    _mesa_free_context_data(ctx);

+    free(pwc);

+}

+

+

+/**

+ * Create a new color renderbuffer.

+ */

+struct gl_renderbuffer *

+wmesa_new_renderbuffer(void)

+{

+    struct gl_renderbuffer *rb = CALLOC_STRUCT(gl_renderbuffer);

+    if (!rb)

+        return NULL;

+

+    _mesa_init_renderbuffer(rb, (GLuint)0);

+    

+    rb->_BaseFormat = GL_RGBA;

+    rb->InternalFormat = GL_RGBA;

+    rb->DataType = CHAN_TYPE;

+    rb->Delete = wmesa_delete_renderbuffer;

+    rb->AllocStorage = wmesa_renderbuffer_storage;

+    return rb;

+}

+

+

+void WMesaMakeCurrent(WMesaContext c, HDC hdc)

+{

+    WMesaFramebuffer pwfb;

+

+    {

+        /* return if already current */

+        GET_CURRENT_CONTEXT(ctx);

+        WMesaContext pwc = wmesa_context(ctx);

+        if (pwc && c == pwc && pwc->hDC == hdc)

+            return;

+    }

+

+    pwfb = wmesa_lookup_framebuffer(hdc);

+

+    /* Lazy creation of framebuffers */

+    if (c && !pwfb && hdc) {

+        struct gl_renderbuffer *rb;

+        struct gl_config *visual = &c->gl_ctx.Visual;

+        GLuint width, height;

+

+        get_window_size(hdc, &width, &height);

+

+	c->clearPen = CreatePen(PS_SOLID, 1, 0); 

+	c->clearBrush = CreateSolidBrush(0); 

+

+        pwfb = wmesa_new_framebuffer(hdc, visual);

+

+	/* Create back buffer if double buffered */

+	if (visual->doubleBufferMode == 1) {

+	    wmCreateBackingStore(pwfb, width, height);

+	}

+	

+        /* make render buffers */

+        if (visual->doubleBufferMode == 1) {

+            rb = wmesa_new_renderbuffer();

+            _mesa_add_renderbuffer(&pwfb->Base, BUFFER_BACK_LEFT, rb);

+            wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 1);

+	}

+        rb = wmesa_new_renderbuffer();

+        _mesa_add_renderbuffer(&pwfb->Base, BUFFER_FRONT_LEFT, rb);

+        wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 0);

+

+	/* Let Mesa own the Depth, Stencil, and Accum buffers */

+        _mesa_add_soft_renderbuffers(&pwfb->Base,

+                                     GL_FALSE, /* color */

+                                     visual->depthBits > 0,

+                                     visual->stencilBits > 0,

+                                     visual->accumRedBits > 0,

+                                     visual->alphaBits >0, 

+                                     GL_FALSE);

+    }

+

+    if (c && pwfb)

+	_mesa_make_current(&c->gl_ctx, &pwfb->Base, &pwfb->Base);

+    else

+        _mesa_make_current(NULL, NULL, NULL);

+}

+

+

+void WMesaSwapBuffers( HDC hdc )

+{

+    GET_CURRENT_CONTEXT(ctx);

+    WMesaContext pwc = wmesa_context(ctx);

+    WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(hdc);

+

+    if (!pwfb) {

+        _mesa_problem(NULL, "wmesa: swapbuffers on unknown hdc");

+        return;

+    }

+

+    /* If we're swapping the buffer associated with the current context

+     * we have to flush any pending rendering commands first.

+     */

+    if (pwc->hDC == hdc) {

+	_mesa_notifySwapBuffers(ctx);

+

+	BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,

+	       pwfb->dib_hDC, 0, 0, SRCCOPY);

+    }

+    else {

+        /* XXX for now only allow swapping current window */

+        _mesa_problem(NULL, "wmesa: can't swap non-current window");

+    }

+}

+

+void WMesaShareLists(WMesaContext ctx_to_share, WMesaContext ctx)

+{

+	_mesa_share_state(&ctx->gl_ctx, &ctx_to_share->gl_ctx);	

+}

+

diff --git a/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c b/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c
index 9aedd2e3c..bc4839cfe 100644
--- a/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c
+++ b/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c
@@ -1,2212 +1,2212 @@
-/****************************************************************************
-*
-*                        Mesa 3-D graphics library
-*                        Direct3D Driver Interface
-*
-*  ========================================================================
-*
-*   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
-*
-*   Permission is hereby granted, free of charge, to any person obtaining a
-*   copy of this software and associated documentation files (the "Software"),
-*   to deal in the Software without restriction, including without limitation
-*   the rights to use, copy, modify, merge, publish, distribute, sublicense,
-*   and/or sell copies of the Software, and to permit persons to whom the
-*   Software is furnished to do so, subject to the following conditions:
-*
-*   The above copyright notice and this permission notice shall be included
-*   in all copies or substantial portions of the Software.
-*
-*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-*   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-*   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-*   SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-*   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
-*   OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-*   SOFTWARE.
-*
-*  ======================================================================
-*
-* Language:     ANSI C
-* Environment:  Windows 9x (Win32)
-*
-* Description:  Context handling.
-*
-****************************************************************************/
-
-#include "dglcontext.h"
-
-// Get compile errors without this. KeithH
-//#include "scitech.h"	// ibool, etc.
-
-#ifdef _USE_GLD3_WGL
-#include "gld_driver.h"
-
-extern void _gld_mesa_warning(struct gl_context *, char *);
-extern void _gld_mesa_fatal(struct gl_context *, char *);
-#endif // _USE_GLD3_WGL
-
-// TODO: Clean out old DX6-specific code from GLD 2.x CAD driver
-// if it is no longer being built as part of GLDirect. (DaveM)
-
-// ***********************************************************************
-
-#define GLDERR_NONE     0
-#define GLDERR_MEM      1
-#define GLDERR_DDRAW    2
-#define GLDERR_D3D      3
-#define GLDERR_BPP      4
-
-char szResourceWarning[] =
-"GLDirect does not have enough video memory resources\n"
-"to support the requested OpenGL rendering context.\n\n"
-"You may have to reduce the current display resolution\n"
-"to obtain satisfactory OpenGL performance.\n";
-
-char szDDrawWarning[] =
-"GLDirect is unable to initialize DirectDraw for the\n"
-"requested OpenGL rendering context.\n\n"
-"You will have to check the DirectX control panel\n"
-"for further information.\n";
-
-char szD3DWarning[] =
-"GLDirect is unable to initialize Direct3D for the\n"
-"requested OpenGL rendering context.\n\n"
-"You may have to change the display mode resolution\n"
-"color depth or check the DirectX control panel for\n"
-"further information.\n";
-
-char szBPPWarning[] =
-"GLDirect is unable to use the selected color depth for\n"
-"the requested OpenGL rendering context.\n\n"
-"You will have to change the display mode resolution\n"
-"color depth with the Display Settings control panel.\n";
-
-int nContextError = GLDERR_NONE;
-
-// ***********************************************************************
-
-#define VENDORID_ATI 0x1002
-
-static DWORD devATIRagePro[] = {
-	0x4742, // 3D RAGE PRO BGA AGP 1X/2X
-	0x4744, // 3D RAGE PRO BGA AGP 1X only
-	0x4749, // 3D RAGE PRO BGA PCI 33 MHz
-	0x4750, // 3D RAGE PRO PQFP PCI 33 MHz
-	0x4751, // 3D RAGE PRO PQFP PCI 33 MHz limited 3D
-	0x4C42, // 3D RAGE LT PRO BGA-312 AGP 133 MHz
-	0x4C44, // 3D RAGE LT PRO BGA-312 AGP 66 MHz
-	0x4C49, // 3D RAGE LT PRO BGA-312 PCI 33 MHz
-	0x4C50, // 3D RAGE LT PRO BGA-256 PCI 33 MHz
-	0x4C51, // 3D RAGE LT PRO BGA-256 PCI 33 MHz limited 3D
-};
-
-static DWORD devATIRageIIplus[] = {
-	0x4755, // 3D RAGE II+
-	0x4756, // 3D RAGE IIC PQFP PCI
-	0x4757, // 3D RAGE IIC BGA AGP
-	0x475A, // 3D RAGE IIC PQFP AGP
-	0x4C47, // 3D RAGE LT-G
-};
-
-// ***********************************************************************
-
-#ifndef _USE_GLD3_WGL
-extern DGL_mesaFuncs mesaFuncs;
-#endif
-
-extern DWORD dwLogging;
-
-#ifdef GLD_THREADS
-#pragma message("compiling DGLCONTEXT.C vars for multi-threaded support")
-CRITICAL_SECTION CriticalSection;		// for serialized access
-DWORD		dwTLSCurrentContext = 0xFFFFFFFF;	// TLS index for current context
-DWORD		dwTLSPixelFormat = 0xFFFFFFFF;		// TLS index for current pixel format
-#endif
-HGLRC		iCurrentContext = 0;		// Index of current context (static)
-BOOL		bContextReady = FALSE;		// Context state ready ?
-
-DGL_ctx		ctxlist[DGL_MAX_CONTEXTS];	// Context list
-
-// ***********************************************************************
-
-static BOOL bHaveWin95 = FALSE;
-static BOOL bHaveWinNT = FALSE;
-static BOOL bHaveWin2K = FALSE;
-
-/****************************************************************************
-REMARKS:
-Detect the installed OS type.
-****************************************************************************/
-static void DetectOS(void)
-{
-    OSVERSIONINFO VersionInformation;
-    LPOSVERSIONINFO lpVersionInformation = &VersionInformation;
-
-    VersionInformation.dwOSVersionInfoSize = sizeof(VersionInformation);
-
-	GetVersionEx(lpVersionInformation);
-
-    switch (VersionInformation.dwPlatformId) {
-    	case VER_PLATFORM_WIN32_WINDOWS:
-			bHaveWin95 = TRUE;
-			bHaveWinNT = FALSE;
-			bHaveWin2K = FALSE;
-            break;
-    	case VER_PLATFORM_WIN32_NT:
-			bHaveWin95 = FALSE;
-			if (VersionInformation.dwMajorVersion <= 4) {
-				bHaveWinNT = TRUE;
-				bHaveWin2K = FALSE;
-                }
-            else {
-				bHaveWinNT = FALSE;
-				bHaveWin2K = TRUE;
-                }
-			break;
-		case VER_PLATFORM_WIN32s:
-			bHaveWin95 = FALSE;
-			bHaveWinNT = FALSE;
-			bHaveWin2K = FALSE;
-			break;
-        }
-}
-
-// ***********************************************************************
-
-HWND hWndEvent = NULL;					// event monitor window
-HWND hWndLastActive = NULL;				// last active client window
-LONG __stdcall GLD_EventWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);
-
-// ***********************************************************************
-
-// Checks if the HGLRC is valid in range of context list.
-BOOL dglIsValidContext(
-	HGLRC a)
-{
-	return ((int)a > 0 && (int)a <= DGL_MAX_CONTEXTS);
-}
-
-// ***********************************************************************
-
-// Convert a HGLRC to a pointer into the context list.
-DGL_ctx* dglGetContextAddress(
-	const HGLRC a)
-{
-	if (dglIsValidContext(a))
-		return &ctxlist[(int)a-1];
-	return NULL;
-}
-
-// ***********************************************************************
-
-// Return the current HGLRC (however it may be stored for multi-threading).
-HGLRC dglGetCurrentContext(void)
-{
-#ifdef GLD_THREADS
-	HGLRC hGLRC;
-	// load from thread-specific instance
-	if (glb.bMultiThreaded) {
-		// protect against calls from arbitrary threads
-		__try {
-			hGLRC = (HGLRC)TlsGetValue(dwTLSCurrentContext);
-		}
-		__except(EXCEPTION_EXECUTE_HANDLER) {
-			hGLRC = iCurrentContext;
-		}
-	}
-	// load from global static var
-	else {
-		hGLRC = iCurrentContext;
-	}
-	return hGLRC;
-#else
-	return iCurrentContext;
-#endif
-}
-
-// ***********************************************************************
-
-// Set the current HGLRC (however it may be stored for multi-threading).
-void dglSetCurrentContext(HGLRC hGLRC)
-{
-#ifdef GLD_THREADS
-	// store in thread-specific instance
-	if (glb.bMultiThreaded) {
-		// protect against calls from arbitrary threads
-		__try {
-			TlsSetValue(dwTLSCurrentContext, (LPVOID)hGLRC);
-		}
-		__except(EXCEPTION_EXECUTE_HANDLER) {
-			iCurrentContext = hGLRC;
-		}
-	}
-	// store in global static var
-	else {
-		iCurrentContext = hGLRC;
-	}
-#else
-	iCurrentContext = hGLRC;
-#endif
-}
-
-// ***********************************************************************
-
-// Return the current HDC only for a currently active HGLRC.
-HDC dglGetCurrentDC(void)
-{
-	HGLRC hGLRC;
-	DGL_ctx* lpCtx;
-
-	hGLRC = dglGetCurrentContext();
-	if (hGLRC) {
-		lpCtx = dglGetContextAddress(hGLRC);
-		return lpCtx->hDC;
-	}
-	return 0;
-}
-
-// ***********************************************************************
-
-void dglInitContextState()
-{
-	int i;
-	WNDCLASS wc;
-
-#ifdef GLD_THREADS
-	// Allocate thread local storage indexes for current context and pixel format
-	dwTLSCurrentContext = TlsAlloc();
-	dwTLSPixelFormat = TlsAlloc();
-#endif
-
-	dglSetCurrentContext(NULL); // No current rendering context
-
-	 // Clear all context data
-	ZeroMemory(ctxlist, sizeof(ctxlist[0]) * DGL_MAX_CONTEXTS);
-
-	for (i=0; i<DGL_MAX_CONTEXTS; i++)
-		ctxlist[i].bAllocated = FALSE; // Flag context as unused
-
-	// This section of code crashes the dll in circumstances where the app
-	// creates and destroys contexts.
-/*
-	// Register the class for our event monitor window
-	wc.style = 0;
-	wc.lpfnWndProc = GLD_EventWndProc;
-	wc.cbClsExtra = 0;
-	wc.cbWndExtra = 0;
-	wc.hInstance = GetModuleHandle(NULL);
-	wc.hIcon = LoadIcon(GetModuleHandle(NULL), IDI_APPLICATION);
-	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
-	wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
-	wc.lpszMenuName = NULL;
-	wc.lpszClassName = "GLDIRECT";
-	RegisterClass(&wc);
-
-	// Create the non-visible window to monitor all broadcast messages
-	hWndEvent = CreateWindowEx(
-		WS_EX_TOOLWINDOW,"GLDIRECT","GLDIRECT",WS_POPUP,
-		0,0,0,0,
-		NULL,NULL,GetModuleHandle(NULL),NULL);
-*/
-
-#ifdef GLD_THREADS
-	// Create a critical section object for serializing access to
-	// DirectDraw and DDStereo create/destroy functions in multiple threads
-	if (glb.bMultiThreaded)
-		InitializeCriticalSection(&CriticalSection);
-#endif
-
-	// Context state is now initialized and ready
-	bContextReady = TRUE;
-}
-
-// ***********************************************************************
-
-void dglDeleteContextState()
-{
-	int i;
-	static BOOL bOnceIsEnough = FALSE;
-
-	// Only call once, from either DGL_exitDriver(), or DLL_PROCESS_DETACH
-	if (bOnceIsEnough)
-		return;
-	bOnceIsEnough = TRUE;
-
-	for (i=0; i<DGL_MAX_CONTEXTS; i++) {
-		if (ctxlist[i].bAllocated == TRUE) {
-			ddlogPrintf(DDLOG_WARN, "** Context %i not deleted - cleaning up.", (i+1));
-			dglDeleteContext((HGLRC)(i+1));
-		}
-	}
-
-	// Context state is no longer ready
-	bContextReady = FALSE;
-
-    // If executed when DLL unloads, DDraw objects may be invalid.
-    // So catch any page faults with this exception handler.
-__try {
-
-	// Release final DirectDraw interfaces
-	if (glb.bDirectDrawPersistant) {
-//		RELEASE(glb.lpGlobalPalette);
-//		RELEASE(glb.lpDepth4);
-//		RELEASE(glb.lpBack4);
-//		RELEASE(glb.lpPrimary4);
-//	    RELEASE(glb.lpDD4);
-    }
-}
-__except(EXCEPTION_EXECUTE_HANDLER) {
-    ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContextState.");
-}
-
-	// Destroy our event monitor window
-	if (hWndEvent) {
-		DestroyWindow(hWndEvent);
-		hWndEvent = hWndLastActive = NULL;
-	}
-
-#ifdef GLD_THREADS
-	// Destroy the critical section object
-	if (glb.bMultiThreaded)
-		DeleteCriticalSection(&CriticalSection);
-
-	// Release thread local storage indexes for current HGLRC and pixel format
-	TlsFree(dwTLSPixelFormat);
-	TlsFree(dwTLSCurrentContext);
-#endif
-}
-
-// ***********************************************************************
-
-// Application Window message handler interception
-static LONG __stdcall dglWndProc(
-	HWND hwnd,
-	UINT msg,
-	WPARAM wParam,
-	LPARAM lParam)
-{
-	DGL_ctx* 	lpCtx = NULL;
-	LONG 		lpfnWndProc = 0L;
-	int  		i;
-	HGLRC 		hGLRC;
-	RECT 		rect;
-	PAINTSTRUCT	ps;
-    BOOL        bQuit = FALSE;
-    BOOL        bMain = FALSE;
-    LONG        rc;
-
-    // Get the window's message handler *before* it is unhooked in WM_DESTROY
-
-    // Is this the main window?
-    if (hwnd == glb.hWndActive) {
-        bMain = TRUE;
-        lpfnWndProc = glb.lpfnWndProc;
-    }
-    // Search for DGL context matching window handle
-    for (i=0; i<DGL_MAX_CONTEXTS; i++) {
-	    if (ctxlist[i].hWnd == hwnd) {
-	        lpCtx = &ctxlist[i];
-	        lpfnWndProc = lpCtx->lpfnWndProc;
-		    break;
-        }
-    }
-	// Not one of ours...
-	if (!lpfnWndProc)
-	    return DefWindowProc(hwnd, msg, wParam, lParam);
-
-    // Intercept messages amd process *before* passing on to window
-	switch (msg) {
-#ifdef _USE_GLD3_WGL
-	case WM_DISPLAYCHANGE:
-		glb.bPixelformatsDirty = TRUE;
-		break;
-#endif
-	case WM_ACTIVATEAPP:
-		glb.bAppActive = (BOOL)wParam;
-		ddlogPrintf(DDLOG_INFO, "Calling app has been %s", glb.bAppActive ? "activated" : "de-activated");
-		break;
-	case WM_ERASEBKGND:
-		// Eat the GDI erase event for the GL window
-        if (!lpCtx || !lpCtx->bHasBeenCurrent)
-            break;
-		lpCtx->bGDIEraseBkgnd = TRUE;
-		return TRUE;
-	case WM_PAINT:
-		// Eat the invalidated update region if render scene is in progress
-        if (!lpCtx || !lpCtx->bHasBeenCurrent)
-            break;
-		if (lpCtx->bFrameStarted) {
-			if (GetUpdateRect(hwnd, &rect, FALSE)) {
-				BeginPaint(hwnd, &ps);
-				EndPaint(hwnd, &ps);
-				ValidateRect(hwnd, &rect);
-				return TRUE;
-				}
-			}
-		break;
-	}
-	// Call the appropriate window message handler
-	rc = CallWindowProc((WNDPROC)lpfnWndProc, hwnd, msg, wParam, lParam);
-
-    // Intercept messages and process *after* passing on to window
-	switch (msg) {
-    case WM_QUIT:
-	case WM_DESTROY:
-        bQuit = TRUE;
-		if (lpCtx && lpCtx->bAllocated) {
-			ddlogPrintf(DDLOG_WARN, "WM_DESTROY detected for HWND=%X, HDC=%X, HGLRC=%d", hwnd, lpCtx->hDC, i+1);
-			dglDeleteContext((HGLRC)(i+1));
-		}
-		break;
-#if 0
-	case WM_SIZE:
-		// Resize surfaces to fit window but not viewport (in case app did not bother)
-        if (!lpCtx || !lpCtx->bHasBeenCurrent)
-            break;
-		w = LOWORD(lParam);
-		h = HIWORD(lParam);
-		if (lpCtx->dwWidth < w || lpCtx->dwHeight < h) {
-			if (!dglWglResizeBuffers(lpCtx->glCtx, TRUE))
-                 dglWglResizeBuffers(lpCtx->glCtx, FALSE);
-        }
-		break;
-#endif
-    }
-
-    // If the main window is quitting, then so should we...
-    if (bMain && bQuit) {
-		ddlogPrintf(DDLOG_SYSTEM, "shutting down after WM_DESTROY detected for main HWND=%X", hwnd);
-        dglDeleteContextState();
-        dglExitDriver();
-    }
-
-    return rc;
-}
-
-// ***********************************************************************
-
-// Driver Window message handler
-static LONG __stdcall GLD_EventWndProc(
-	HWND hwnd,
-	UINT msg,
-	WPARAM wParam,
-	LPARAM lParam)
-{
-	switch (msg) {
-        // May be sent by splash screen dialog on exit
-        case WM_ACTIVATE:
-            if (LOWORD(wParam) == WA_ACTIVE && glb.hWndActive) {
-                SetForegroundWindow(glb.hWndActive);
-                return 0;
-                }
-            break;
-	}
-	return DefWindowProc(hwnd, msg, wParam, lParam);
-}
-
-// ***********************************************************************
-
-// Intercepted Keyboard handler for detecting hot keys.
-LRESULT CALLBACK dglKeyProc(
-	int code,
-	WPARAM wParam,
-	LPARAM lParam)
-{
-	HWND hWnd, hWndFrame;
-	HGLRC hGLRC = NULL;
-	DGL_ctx* lpCtx = NULL;
-	int cmd = 0, dx1 = 0, dx2 = 0, i;
-	static BOOL bAltPressed = FALSE;
-	static BOOL bCtrlPressed = FALSE;
-	static BOOL bShiftPressed = FALSE;
-    RECT r, rf, rc;
-    POINT pt;
-    BOOL bForceReshape = FALSE;
-
-	return CallNextHookEx(hKeyHook, code, wParam, lParam);
-}
-
-// ***********************************************************************
-
-HWND hWndMatch;
-
-// Window handle enumeration procedure.
-BOOL CALLBACK dglEnumChildProc(
-    HWND hWnd,
-    LPARAM lParam)
-{
-    RECT rect;
-
-    // Find window handle with matching client rect.
-    GetClientRect(hWnd, &rect);
-    if (EqualRect(&rect, (RECT*)lParam)) {
-        hWndMatch = hWnd;
-        return FALSE;
-        }
-    // Continue with next child window.
-    return TRUE;
-}
-
-// ***********************************************************************
-
-// Find window handle with matching client rect.
-HWND dglFindWindowRect(
-    RECT* pRect)
-{
-    hWndMatch = NULL;
-    EnumChildWindows(GetForegroundWindow(), dglEnumChildProc, (LPARAM)pRect);
-    return hWndMatch;
-}
-
-// ***********************************************************************
-#ifndef _USE_GLD3_WGL
-void dglChooseDisplayMode(
-	DGL_ctx *lpCtx)
-{
-	// Note: Choose an exact match if possible.
-
-	int				i;
-	DWORD			area;
-	DWORD			bestarea;
-	DDSURFACEDESC2	*lpDDSD		= NULL;	// Mode list pointer
-	DDSURFACEDESC2	*lpBestDDSD = NULL;	// Pointer to best
-
-	lpDDSD = glb.lpDisplayModes;
-	for (i=0; i<glb.nDisplayModeCount; i++, lpDDSD++) {
-		if ((lpDDSD->dwWidth == lpCtx->dwWidth) &&
-			(lpDDSD->dwHeight == lpCtx->dwHeight))
-			goto matched; // Mode has been exactly matched
-		// Choose modes that are larger in both dimensions than
-		// the window, but smaller in area than the current best.
-		if ( (lpDDSD->dwWidth >= lpCtx->dwWidth) &&
-			 (lpDDSD->dwHeight >= lpCtx->dwHeight))
-		{
-			if (lpBestDDSD == NULL) {
-				lpBestDDSD = lpDDSD;
-				bestarea = lpDDSD->dwWidth * lpDDSD->dwHeight;
-				continue;
-			}
-			area = lpDDSD->dwWidth * lpDDSD->dwHeight;
-			if (area < bestarea) {
-				lpBestDDSD = lpDDSD;
-				bestarea = area;
-			}
-		}
-	}
-
-	// Safety check
-	if (lpBestDDSD == NULL) {
-		ddlogMessage(DDLOG_CRITICAL, "dglChooseDisplayMode");
-		return;
-	}
-
-	lpCtx->dwModeWidth = lpBestDDSD->dwWidth;
-	lpCtx->dwModeHeight = lpBestDDSD->dwHeight;
-matched:
-	ddlogPrintf(DDLOG_INFO, "Matched (%ldx%ld) to (%ldx%ld)",
-		lpCtx->dwWidth, lpCtx->dwHeight, lpCtx->dwModeWidth, lpCtx->dwModeHeight);
-}
-#endif // _USE_GLD3_WGL
-// ***********************************************************************
-
-static BOOL IsDevice(
-	DWORD *lpDeviceIdList,
-	DWORD dwDeviceId,
-	int count)
-{
-	int i;
-
-	for (i=0; i<count; i++)
-		if (dwDeviceId == lpDeviceIdList[i])
-			return TRUE;
-
-	return FALSE;
-}
-
-// ***********************************************************************
-
-void dglTestForBrokenCards(
-	DGL_ctx *lpCtx)
-{
-#ifndef _GLD3
-	DDDEVICEIDENTIFIER	dddi; // DX6 device identifier
-
-	// Sanity check.
-	if (lpCtx == NULL) {
-		// Testing for broken cards is sensitive area, so we don't want
-		// anything saying "broken cards" in the error message. ;)
-		ddlogMessage(DDLOG_ERROR, "Null context passed to TFBC\n");
-		return;
-	}
-
-	if (lpCtx->lpDD4 == NULL) {
-		// Testing for broken cards is sensitive area, so we don't want
-		// anything saying "broken cards" in the error message. ;)
-		ddlogMessage(DDLOG_ERROR, "Null DD4 passed to TFBC\n");
-		return;
-	}
-
-	// Microsoft really fucked up with the GetDeviceIdentifier function
-	// on Windows 2000, since it locks up on stock driers on the CD. Updated
-	// drivers from vendors appear to work, but we can't identify the drivers
-	// without this function!!! For now we skip these tests on Windows 2000.
-	if ((GetVersion() & 0x80000000UL) == 0)
-		return;
-
-	// Obtain device info
-	if (FAILED(IDirectDraw4_GetDeviceIdentifier(lpCtx->lpDD4, &dddi, 0)))
-		return;
-
-	// Useful info. Log it.
-	ddlogPrintf(DDLOG_INFO, "DirectDraw: VendorId=0x%x, DeviceId=0x%x", dddi.dwVendorId, dddi.dwDeviceId);
-
-	// Vendor 1: ATI
-	if (dddi.dwVendorId == VENDORID_ATI) {
-		// Test A: ATI Rage PRO
-		if (IsDevice(devATIRagePro, dddi.dwDeviceId, sizeof(devATIRagePro)))
-			glb.bUseMipmaps = FALSE;
-		// Test B: ATI Rage II+
-		if (IsDevice(devATIRageIIplus, dddi.dwDeviceId, sizeof(devATIRageIIplus)))
-			glb.bEmulateAlphaTest = TRUE;
-	}
-
-	// Vendor 2: Matrox
-	if (dddi.dwVendorId == 0x102B) {
-		// Test: Matrox G400 stencil buffer support does not work for AutoCAD
-		if (dddi.dwDeviceId == 0x0525) {
-			lpCtx->lpPF->pfd.cStencilBits = 0;
-			if (lpCtx->lpPF->iZBufferPF != -1) {
-				glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitDepth = 0;
-				glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitMask = 0;
-				glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags &= ~DDPF_STENCILBUFFER;
-			}
-		}
-	}
-#endif // _GLD3
-}
-
-// ***********************************************************************
-
-BOOL dglCreateContextBuffers(
-	HDC a,
-	DGL_ctx *lpCtx,
-	BOOL bFallback)
-{
-	HRESULT				hResult;
-
-	int					i;
-//	HGLRC				hGLRC;
-//	DGL_ctx*			lpCtx;
-
-#ifndef _USE_GLD3_WGL
-	DWORD				dwFlags;
-	DDSURFACEDESC2		ddsd2;
-	DDSCAPS2			ddscaps2;
-	LPDIRECTDRAWCLIPPER	lpddClipper;
-	D3DDEVICEDESC		D3DHWDevDesc;	// Direct3D Hardware description
-	D3DDEVICEDESC		D3DHELDevDesc;	// Direct3D Hardware Emulation Layer
-#endif // _USE_GLD3_WGL
-
-	float				inv_aspect;
-
-	GLenum				bDoubleBuffer;	// TRUE if double buffer required
-	GLenum				bDepthBuffer;	// TRUE if depth buffer required
-
-	const PIXELFORMATDESCRIPTOR	*lpPFD = &lpCtx->lpPF->pfd;
-
-	// Vars for Mesa visual
-	DWORD				dwDepthBits		= 0;
-	DWORD				dwStencilBits	= 0;
-	DWORD				dwAlphaBits		= 0;
-	DWORD				bAlphaSW		= GL_FALSE;
-	DWORD				bDouble			= GL_FALSE;
-
-	DDSURFACEDESC2 		ddsd2DisplayMode;
-	BOOL				bFullScrnWin	= FALSE;	// fullscreen-size window ?
-	DDBLTFX 			ddbltfx;
-	DWORD				dwMemoryType 	= (bFallback) ? DDSCAPS_SYSTEMMEMORY : glb.dwMemoryType;
-	BOOL				bBogusWindow	= FALSE;	// non-drawable window ?
-	DWORD               dwColorRef      = 0;        // GDI background color
-	RECT				rcDst;						// GDI window rect
-	POINT				pt;							// GDI window point
-
-	// Palette used for creating default global palette
-	PALETTEENTRY	ppe[256];
-
-#ifndef _USE_GLD3_WGL
-	// Vertex buffer description. Used for creation of vertex buffers
-	D3DVERTEXBUFFERDESC vbufdesc;
-#endif // _USE_GLD3_WGL
-
-#define DDLOG_CRITICAL_OR_WARN	(bFallback ? DDLOG_CRITICAL : DDLOG_WARN)
-
-	ddlogPrintf(DDLOG_SYSTEM, "dglCreateContextBuffers for HDC=%X", a);
-    nContextError = GLDERR_NONE;
-
-#ifdef GLD_THREADS
-	// Serialize access to DirectDraw object creation or DDS start
-	if (glb.bMultiThreaded)
-		EnterCriticalSection(&CriticalSection);
-#endif
-
-	// Check for back buffer
-	bDoubleBuffer = GL_TRUE; //(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE;
-	// Since we always do back buffering, check if we emulate front buffering
-	lpCtx->EmulateSingle =
-		(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;
-#if 0	// Don't have to mimic MS OpenGL behavior for front-buffering (DaveM)
-	lpCtx->EmulateSingle |=
-		(lpPFD->dwFlags & PFD_SUPPORT_GDI) ? TRUE : FALSE;
-#endif
-
-	// Check for depth buffer
-	bDepthBuffer = (lpPFD->cDepthBits) ? GL_TRUE : GL_FALSE;
-
-	lpCtx->bDoubleBuffer = bDoubleBuffer;
-	lpCtx->bDepthBuffer = bDepthBuffer;
-
-	// Set the Fullscreen flag for the context.
-//	lpCtx->bFullscreen = glb.bFullscreen;
-
-	// Obtain the dimensions of the rendering window
-	lpCtx->hDC = a; // Cache DC
-	lpCtx->hWnd = WindowFromDC(lpCtx->hDC);
-	// Check for non-window DC = memory DC ?
-	if (lpCtx->hWnd == NULL) {
-        // bitmap memory contexts are always single-buffered
-        lpCtx->EmulateSingle = TRUE;
-		bBogusWindow = TRUE;
-		ddlogPrintf(DDLOG_INFO, "Non-Window Memory Device Context");
-		if (GetClipBox(lpCtx->hDC, &lpCtx->rcScreenRect) == ERROR) {
-			ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglCreateContext\n");
-			SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
-		}
-	}
-	else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {
-		bBogusWindow = TRUE;
-		ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglCreateContext\n");
-		SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
-	}
-	lpCtx->dwWidth = lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left;
-	lpCtx->dwHeight = lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top;
-
-	ddlogPrintf(DDLOG_INFO, "Input window %X: w=%i, h=%i",
-							lpCtx->hWnd, lpCtx->dwWidth, lpCtx->dwHeight);
-
-	// What if app only zeroes one dimension instead of both? (DaveM)
-	if ( (lpCtx->dwWidth == 0) || (lpCtx->dwHeight == 0) ) {
-		// Make the buffer size something sensible
-		lpCtx->dwWidth = 8;
-		lpCtx->dwHeight = 8;
-	}
-
-	// Set defaults
-	lpCtx->dwModeWidth = lpCtx->dwWidth;
-	lpCtx->dwModeHeight = lpCtx->dwHeight;
-/*
-	// Find best display mode for fullscreen
-	if (glb.bFullscreen || !glb.bPrimary) {
-		dglChooseDisplayMode(lpCtx);
-	}
-*/
-	// Misc initialisation
-	lpCtx->bCanRender = FALSE; // No rendering allowed yet
-	lpCtx->bSceneStarted = FALSE;
-	lpCtx->bFrameStarted = FALSE;
-
-	// Detect OS (specifically 'Windows 2000' or 'Windows XP')
-	DetectOS();
-
-	// NOTE: WinNT not supported
-	ddlogPrintf(DDLOG_INFO, "OS: %s", bHaveWin95 ? "Win9x" : (bHaveWin2K ? "Win2000/XP" : "Unsupported") );
-
-	// Test for Fullscreen
-	if (bHaveWin95) { // Problems with fullscreen on Win2K/XP
-		if ((GetSystemMetrics(SM_CXSCREEN) == lpCtx->dwWidth) && 
-			(GetSystemMetrics(SM_CYSCREEN) == lpCtx->dwHeight))
-		{
-			// Workaround for some apps that crash when going fullscreen.
-			//lpCtx->bFullscreen = TRUE;
-		}
-		
-	}
-
-#ifdef _USE_GLD3_WGL
-	_gldDriver.CreateDrawable(lpCtx, glb.bDirectDrawPersistant, glb.bPersistantBuffers);
-#else
-	// Check if DirectDraw has already been created by original GLRC (DaveM)
-	if (glb.bDirectDrawPersistant && glb.bDirectDraw) {
-		lpCtx->lpDD4 = glb.lpDD4;
-		IDirectDraw4_AddRef(lpCtx->lpDD4);
-		goto SkipDirectDrawCreate;
-	}
-
-	// Create DirectDraw object
-	if (glb.bPrimary)
-		hResult = DirectDrawCreate(NULL, &lpCtx->lpDD1, NULL);
-	else {
-		// A non-primary device is to be used.
-		// Force context to be Fullscreen, secondary adaptors can not
-		// be used in a window.
-		hResult = DirectDrawCreate(&glb.ddGuid, &lpCtx->lpDD1, NULL);
-		lpCtx->bFullscreen = TRUE;
-	}
-	if (FAILED(hResult)) {
-		MessageBox(NULL, "Unable to initialize DirectDraw", "GLDirect", MB_OK);
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw interface", hResult);
-        nContextError = GLDERR_DDRAW;
-		goto return_with_error;
-	}
-
-	// Query for DX6 IDirectDraw4.
-	hResult = IDirectDraw_QueryInterface(lpCtx->lpDD1,
-										 &IID_IDirectDraw4,
-										 (void**)&lpCtx->lpDD4);
-	if (FAILED(hResult)) {
-		MessageBox(NULL, "GLDirect requires DirectX 6.0 or above", "GLDirect", MB_OK);
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw4 interface", hResult);
-        nContextError = GLDERR_DDRAW;
-		goto return_with_error;
-	}
-
-	// Cache DirectDraw interface for subsequent GLRCs
-	if (glb.bDirectDrawPersistant && !glb.bDirectDraw) {
-		glb.lpDD4 = lpCtx->lpDD4;
-		IDirectDraw4_AddRef(glb.lpDD4);
-		glb.bDirectDraw = TRUE;
-	}
-SkipDirectDrawCreate:
-
-	// Now we have a DD4 interface we can check for broken cards
-	dglTestForBrokenCards(lpCtx);
-
-	// Test if primary device can use flipping instead of blitting
-	ZeroMemory(&ddsd2DisplayMode, sizeof(ddsd2DisplayMode));
-	ddsd2DisplayMode.dwSize = sizeof(ddsd2DisplayMode);
-	hResult = IDirectDraw4_GetDisplayMode(
-					lpCtx->lpDD4,
-					&ddsd2DisplayMode);
-	if (SUCCEEDED(hResult)) {
-		if ( (lpCtx->dwWidth == ddsd2DisplayMode.dwWidth) &&
-				 (lpCtx->dwHeight == ddsd2DisplayMode.dwHeight) ) {
-			// We have a fullscreen-size window
-			bFullScrnWin = TRUE;
-			// OK to use DirectDraw fullscreen mode ?
-			if (glb.bPrimary && !glb.bFullscreenBlit && !lpCtx->EmulateSingle && !glb.bDirectDrawPersistant) {
-				lpCtx->bFullscreen = TRUE;
-				ddlogMessage(DDLOG_INFO, "Primary upgraded to page flipping.\n");
-			}
-		}
-		// Cache the display mode dimensions
-		lpCtx->dwModeWidth = ddsd2DisplayMode.dwWidth;
-		lpCtx->dwModeHeight = ddsd2DisplayMode.dwHeight;
-	}
-
-	// Clamp the effective window dimensions to primary surface.
-	// We need to do this for D3D viewport dimensions even if wide
-	// surfaces are supported. This also is a good idea for handling
-	// whacked-out window dimensions passed for non-drawable windows
-	// like Solid Edge. (DaveM)
-	if (lpCtx->dwWidth > ddsd2DisplayMode.dwWidth)
-		lpCtx->dwWidth = ddsd2DisplayMode.dwWidth;
-	if (lpCtx->dwHeight > ddsd2DisplayMode.dwHeight)
-		lpCtx->dwHeight = ddsd2DisplayMode.dwHeight;
-
-	// Check for non-RGB desktop resolution
-	if (!lpCtx->bFullscreen && ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount <= 8) {
-		ddlogPrintf(DDLOG_CRITICAL_OR_WARN, "Desktop color depth %d bpp not supported",
-			ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount);
-        nContextError = GLDERR_BPP;
-		goto return_with_error;
-	}
-#endif // _USE_GLD3_WGL
-
-	ddlogPrintf(DDLOG_INFO, "Window: w=%i, h=%i (%s)",
-							lpCtx->dwWidth,
-							lpCtx->dwHeight,
-							lpCtx->bFullscreen ? "fullscreen" : "windowed");
-
-#ifndef _USE_GLD3_WGL
-	// Obtain ddraw caps
-    ZeroMemory(&lpCtx->ddCaps, sizeof(DDCAPS));
-	lpCtx->ddCaps.dwSize = sizeof(DDCAPS);
-	if (glb.bHardware) {
-		// Get HAL caps
-		IDirectDraw4_GetCaps(lpCtx->lpDD4, &lpCtx->ddCaps, NULL);
-	} else {
-		// Get HEL caps
-		IDirectDraw4_GetCaps(lpCtx->lpDD4, NULL, &lpCtx->ddCaps);
-	}
-
-	// If this flag is present then we can't default to Mesa
-	// SW rendering between BeginScene() and EndScene().
-	if (lpCtx->ddCaps.dwCaps2 & DDCAPS2_NO2DDURING3DSCENE) {
-		ddlogMessage(DDLOG_INFO,
-			"Warning          : No 2D allowed during 3D scene.\n");
-	}
-
-	// Query for DX6 Direct3D3 interface
-	hResult = IDirectDraw4_QueryInterface(lpCtx->lpDD4,
-										  &IID_IDirect3D3,
-										  (void**)&lpCtx->lpD3D3);
-	if (FAILED(hResult)) {
-		MessageBox(NULL, "Unable to initialize Direct3D", "GLDirect", MB_OK);
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D interface", hResult);
-        nContextError = GLDERR_D3D;
-		goto return_with_error;
-	}
-
-	// Context creation
-	if (lpCtx->bFullscreen) {
-		// FULLSCREEN
-
-        // Disable warning popups when in fullscreen mode
-        ddlogWarnOption(FALSE);
-
-		// Have to release persistant primary surface if fullscreen mode
-		if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {
-			RELEASE(glb.lpPrimary4);
-			glb.bDirectDrawPrimary = FALSE;
-		}
-
-		dwFlags = DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_ALLOWREBOOT;
-		if (glb.bFastFPU)
-			dwFlags |= DDSCL_FPUSETUP;	// fast FPU setup optional (DaveM)
-		hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, lpCtx->hWnd, dwFlags);
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Exclusive Fullscreen mode", hResult);
-			goto return_with_error;
-		}
-
-		hResult = IDirectDraw4_SetDisplayMode(lpCtx->lpDD4,
-											  lpCtx->dwModeWidth,
-											  lpCtx->dwModeHeight,
-											  lpPFD->cColorBits,
-											  0,
-											  0);
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "SetDisplayMode failed", hResult);
-			goto return_with_error;
-		}
-
-		// ** The display mode has changed, so dont use MessageBox! **
-
-		ZeroMemory(&ddsd2, sizeof(ddsd2));
-		ddsd2.dwSize = sizeof(ddsd2);
-
-		if (bDoubleBuffer) {
-			// Double buffered
-			// Primary surface
-			ddsd2.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
-			ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |
-								   DDSCAPS_FLIP |
-								   DDSCAPS_COMPLEX |
-								   DDSCAPS_3DDEVICE |
-								   dwMemoryType;
-			ddsd2.dwBackBufferCount = 1;
-
-			hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
-			if (FAILED(hResult)) {
-				ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
-                nContextError = GLDERR_MEM;
-				goto return_with_error;
-			}
-
-			// Render target surface
-			ZeroMemory(&ddscaps2, sizeof(ddscaps2)); // Clear the entire struct.
-			ddscaps2.dwCaps = DDSCAPS_BACKBUFFER;
-			hResult = IDirectDrawSurface4_GetAttachedSurface(lpCtx->lpFront4, &ddscaps2, &lpCtx->lpBack4);
-			if (FAILED(hResult)) {
-				ddlogError(DDLOG_CRITICAL_OR_WARN, "GetAttachedSurface failed", hResult);
-                nContextError = GLDERR_MEM;
-				goto return_with_error;
-			}
-		} else {
-			// Single buffered
-			// Primary surface
-			ddsd2.dwFlags = DDSD_CAPS;
-			ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |
-								   //DDSCAPS_3DDEVICE |
-								   dwMemoryType;
-
-			hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
-			if (FAILED(hResult)) {
-				ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
-                nContextError = GLDERR_MEM;
-				goto return_with_error;
-			}
-
-			lpCtx->lpBack4 = NULL;
-		}
-	} else {
-		// WINDOWED
-
-        // OK to enable warning popups in windowed mode
-        ddlogWarnOption(glb.bMessageBoxWarnings);
-
-		dwFlags = DDSCL_NORMAL;
-		if (glb.bMultiThreaded)
-			dwFlags |= DDSCL_MULTITHREADED;
-		if (glb.bFastFPU)
-			dwFlags |= DDSCL_FPUSETUP;	// fast FPU setup optional (DaveM)
-		hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4,
-												  lpCtx->hWnd,
-												  dwFlags);
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Normal coop level", hResult);
-			goto return_with_error;
-		}
-		// Has Primary surface already been created for original GLRC ?
-		// Note this can only be applicable for windowed modes
-		if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {
-			lpCtx->lpFront4 = glb.lpPrimary4;
-			IDirectDrawSurface4_AddRef(lpCtx->lpFront4);
-			// Update the window on the default clipper
-			IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);
-			IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
-			IDirectDrawClipper_Release(lpddClipper);
-			goto SkipPrimaryCreate;
-		}
-
-		// Primary surface
-		ZeroMemory(&ddsd2, sizeof(ddsd2));
-		ddsd2.dwSize = sizeof(ddsd2);
-		ddsd2.dwFlags = DDSD_CAPS;
-		ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
-		hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
-            nContextError = GLDERR_MEM;
-			goto return_with_error;
-		}
-
-		// Cache Primary surface for subsequent GLRCs
-		// Note this can only be applicable to subsequent windowed modes
-		if (glb.bDirectDrawPersistant && !glb.bDirectDrawPrimary) {
-			glb.lpPrimary4 = lpCtx->lpFront4;
-			IDirectDrawSurface4_AddRef(glb.lpPrimary4);
-			glb.bDirectDrawPrimary = TRUE;
-		}
-
-		// Clipper object
-		hResult = DirectDrawCreateClipper(0, &lpddClipper, NULL);
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateClipper failed", hResult);
-			goto return_with_error;
-		}
-		hResult = IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
-		if (FAILED(hResult)) {
-			RELEASE(lpddClipper);
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "SetHWnd failed", hResult);
-			goto return_with_error;
-		}
-		hResult = IDirectDrawSurface4_SetClipper(lpCtx->lpFront4, lpddClipper);
-		RELEASE(lpddClipper); // We have finished with it.
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "SetClipper failed", hResult);
-			goto return_with_error;
-		}
-SkipPrimaryCreate:
-
-		if (bDoubleBuffer) {
-			// Render target surface
-			ZeroMemory(&ddsd2, sizeof(ddsd2));
-			ddsd2.dwSize = sizeof(ddsd2);
-			ddsd2.dwFlags        = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;
-			ddsd2.dwWidth        = lpCtx->dwWidth;
-			ddsd2.dwHeight       = lpCtx->dwHeight;
-			ddsd2.ddsCaps.dwCaps = DDSCAPS_3DDEVICE |
-								   DDSCAPS_OFFSCREENPLAIN |
-								   dwMemoryType;
-
-			// Reserve the entire desktop size for persistant buffers option
-			if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {
-				ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;
-				ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;
-			}
-			// Re-use original back buffer if persistant buffers exist
-			if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpBack4)
-				hResult = IDirectDrawSurface4_AddRef(lpCtx->lpBack4 = glb.lpBack4);
-			else
-				hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpBack4, NULL);
-			if (FAILED(hResult)) {
-				ddlogError(DDLOG_CRITICAL_OR_WARN, "Create Backbuffer failed", hResult);
-                nContextError = GLDERR_MEM;
-				goto return_with_error;
-			}
-			if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpBack4)
-				IDirectDrawSurface4_AddRef(glb.lpBack4 = lpCtx->lpBack4);
-		} else {
-			lpCtx->lpBack4 = NULL;
-		}
-	}
-
-	//
-	// Now create the Z-buffer
-	//
-	lpCtx->bStencil = FALSE; // Default to no stencil buffer
-	if (bDepthBuffer && (lpCtx->lpPF->iZBufferPF != -1)) {
-		// Get z-buffer dimensions from the render target
-		// Setup the surface desc for the z-buffer.
-		ZeroMemory(&ddsd2, sizeof(ddsd2));
-		ddsd2.dwSize = sizeof(ddsd2);
-		ddsd2.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
-		ddsd2.ddsCaps.dwCaps = DDSCAPS_ZBUFFER | dwMemoryType;
-		ddsd2.dwWidth = lpCtx->dwWidth;
-		ddsd2.dwHeight = lpCtx->dwHeight;
-		memcpy(&ddsd2.ddpfPixelFormat,
-			&glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF],
-			sizeof(DDPIXELFORMAT) );
-
-		// Reserve the entire desktop size for persistant buffers option
-		if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {
-			ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;
-			ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;
-		}
-
-		// Create a z-buffer
-		if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4)
-			hResult = IDirectDrawSurface4_AddRef(lpCtx->lpDepth4 = glb.lpDepth4);
-		else
-			hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpDepth4, NULL);
-		if (FAILED(hResult)) {
-			ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (ZBuffer) failed", hResult);
-            nContextError = GLDERR_MEM;
-			goto return_with_error;
-		}
-		if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpDepth4)
-			IDirectDrawSurface4_AddRef(glb.lpDepth4 = lpCtx->lpDepth4);
-		else if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4 && glb.lpBack4)
-			IDirectDrawSurface4_DeleteAttachedSurface(glb.lpBack4, 0, glb.lpDepth4);
-
-		// Attach Zbuffer to render target
-		TRY(IDirectDrawSurface4_AddAttachedSurface(
-			bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,
-			lpCtx->lpDepth4),
-			"dglCreateContext: Attach Zbuffer");
-		if (glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags & DDPF_STENCILBUFFER) {
-			lpCtx->bStencil = TRUE;
-			ddlogMessage(DDLOG_INFO, "Depth buffer has stencil\n");
-		}
-	}
-
-	// Clear all back buffers and Z-buffers in case of memory recycling.
-	ZeroMemory(&ddbltfx, sizeof(ddbltfx));
-	ddbltfx.dwSize = sizeof(ddbltfx);
-	IDirectDrawSurface4_Blt(lpCtx->lpBack4, NULL, NULL, NULL,
-		DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);
-	if (lpCtx->lpDepth4)
-		IDirectDrawSurface4_Blt(lpCtx->lpDepth4, NULL, NULL, NULL,
-			DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);
-
-	// Now that we have a Z-buffer we can create the 3D device
-	hResult = IDirect3D3_CreateDevice(lpCtx->lpD3D3,
-									  &glb.d3dGuid,
-									  bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,
-									  &lpCtx->lpDev3,
-									  NULL);
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D device", hResult);
-        nContextError = GLDERR_D3D;
-		goto return_with_error;
-	}
-
-	// We must do this as soon as the device is created
-	dglInitStateCaches(lpCtx);
-
-	// Obtain the D3D Device Description
-	D3DHWDevDesc.dwSize = D3DHELDevDesc.dwSize = sizeof(D3DDEVICEDESC);
-	TRY(IDirect3DDevice3_GetCaps(lpCtx->lpDev3,
-								 &D3DHWDevDesc,
-								 &D3DHELDevDesc),
-								 "dglCreateContext: GetCaps failed");
-
-	// Choose the relevant description and cache it in the context.
-	// We will use this description later for caps checking
-	memcpy(	&lpCtx->D3DDevDesc,
-			glb.bHardware ? &D3DHWDevDesc : &D3DHELDevDesc,
-			sizeof(D3DDEVICEDESC));
-
-	// Now we can examine the texture formats
-	if (!dglBuildTextureFormatList(lpCtx->lpDev3)) {
-		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "dglBuildTextureFormatList failed\n");
-		goto return_with_error;
-	}
-
-	// Get the pixel format of the back buffer
-	lpCtx->ddpfRender.dwSize = sizeof(lpCtx->ddpfRender);
-	if (bDoubleBuffer)
-		hResult = IDirectDrawSurface4_GetPixelFormat(
-					lpCtx->lpBack4,
-					&lpCtx->ddpfRender);
-	else
-		hResult = IDirectDrawSurface4_GetPixelFormat(
-					lpCtx->lpFront4,
-					&lpCtx->ddpfRender);
-
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "GetPixelFormat failed", hResult);
-		goto return_with_error;
-	}
-	// Find a pixel packing function suitable for this surface
-	pxClassifyPixelFormat(&lpCtx->ddpfRender,
-						  &lpCtx->fnPackFunc,
-						  &lpCtx->fnUnpackFunc,
-						  &lpCtx->fnPackSpanFunc);
-
-	// Viewport
-	hResult = IDirect3D3_CreateViewport(lpCtx->lpD3D3, &lpCtx->lpViewport3, NULL);
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateViewport failed", hResult);
-		goto return_with_error;
-	}
-
-	hResult = IDirect3DDevice3_AddViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "AddViewport failed", hResult);
-		goto return_with_error;
-	}
-
-	// Initialise the viewport
-	// Note screen coordinates are used for viewport clipping since D3D
-	// transform operations are not used in the GLD CAD driver. (DaveM)
-	inv_aspect = (float)lpCtx->dwHeight/(float)lpCtx->dwWidth;
-
-	lpCtx->d3dViewport.dwSize = sizeof(lpCtx->d3dViewport);
-	lpCtx->d3dViewport.dwX = 0;
-	lpCtx->d3dViewport.dwY = 0;
-	lpCtx->d3dViewport.dwWidth = lpCtx->dwWidth;
-	lpCtx->d3dViewport.dwHeight = lpCtx->dwHeight;
-	lpCtx->d3dViewport.dvClipX = 0; // -1.0f;
-	lpCtx->d3dViewport.dvClipY = 0; // inv_aspect;
-	lpCtx->d3dViewport.dvClipWidth = lpCtx->dwWidth; // 2.0f;
-	lpCtx->d3dViewport.dvClipHeight = lpCtx->dwHeight; // 2.0f * inv_aspect;
-	lpCtx->d3dViewport.dvMinZ = 0.0f;
-	lpCtx->d3dViewport.dvMaxZ = 1.0f;
-	TRY(IDirect3DViewport3_SetViewport2(lpCtx->lpViewport3, &lpCtx->d3dViewport), "dglCreateContext: SetViewport2");
-
-	hResult = IDirect3DDevice3_SetCurrentViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "SetCurrentViewport failed", hResult);
-		goto return_with_error;
-	}
-
-	lpCtx->dwBPP = lpPFD->cColorBits;
-	lpCtx->iZBufferPF = lpCtx->lpPF->iZBufferPF;
-
-	// Set last texture to NULL
-	for (i=0; i<MAX_TEXTURE_UNITS; i++) {
-		lpCtx->ColorOp[i] = D3DTOP_DISABLE;
-		lpCtx->AlphaOp[i] = D3DTOP_DISABLE;
-		lpCtx->tObj[i] = NULL;
-	}
-
-	// Default to perspective correct texture mapping
-	dglSetRenderState(lpCtx, D3DRENDERSTATE_TEXTUREPERSPECTIVE, TRUE, "TexturePersp");
-
-	// Set the default culling mode
-	lpCtx->cullmode = D3DCULL_NONE;
-	dglSetRenderState(lpCtx, D3DRENDERSTATE_CULLMODE, D3DCULL_NONE, "CullMode");
-
-	// Disable specular
-	dglSetRenderState(lpCtx, D3DRENDERSTATE_SPECULARENABLE, FALSE, "SpecularEnable");
-	// Disable subpixel correction
-//	dglSetRenderState(lpCtx, D3DRENDERSTATE_SUBPIXEL, FALSE, "SubpixelEnable");
-	// Disable dithering
-	dglSetRenderState(lpCtx, D3DRENDERSTATE_DITHERENABLE, FALSE, "DitherEnable");
-
-	// Initialise the primitive caches
-//	lpCtx->dwNextLineVert	= 0;
-//	lpCtx->dwNextTriVert	= 0;
-
-	// Init the global texture palette
-	lpCtx->lpGlobalPalette = NULL;
-
-	// Init the HW/SW usage counters
-//	lpCtx->dwHWUsageCount = lpCtx->dwSWUsageCount = 0L;
-
-	//
-	// Create two D3D vertex buffers.
-	// One will hold the pre-transformed data with the other one
-	// being used to hold the post-transformed & clipped verts.
-	//
-#if 0  // never used (DaveM)
-	vbufdesc.dwSize = sizeof(D3DVERTEXBUFFERDESC);
-	vbufdesc.dwCaps = D3DVBCAPS_WRITEONLY;
-	if (glb.bHardware == FALSE)
-		vbufdesc.dwCaps = D3DVBCAPS_SYSTEMMEMORY;
-	vbufdesc.dwNumVertices = 32768; // For the time being
-
-	// Source vertex buffer
-	vbufdesc.dwFVF = DGL_LVERTEX;
-	hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_vbuf, 0, NULL);
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(src) failed", hResult);
-		goto return_with_error;
-	}
-
-	// Destination vertex buffer
-	vbufdesc.dwFVF = (glb.bMultitexture == FALSE) ? D3DFVF_TLVERTEX : (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX2);
-	hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_pvbuf, 0, NULL);
-	if(FAILED(hResult)) {
-		ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(dst) failed", hResult);
-		goto return_with_error;
-	}
-#endif
-
-#endif _USE_GLD3_WGL
-
-	//
-	//	Now create the Mesa context
-	//
-
-	// Create the Mesa visual
-	if (lpPFD->cDepthBits)
-		dwDepthBits = 16;
-	if (lpPFD->cStencilBits)
-		dwStencilBits = 8;
-	if (lpPFD->cAlphaBits) {
-		dwAlphaBits = 8;
-		bAlphaSW = GL_TRUE;
-	}
-	if (lpPFD->dwFlags & PFD_DOUBLEBUFFER)
-		bDouble = GL_TRUE;
-//	lpCtx->EmulateSingle =
-//		(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;
-
-#ifdef _USE_GLD3_WGL
-	lpCtx->glVis = _mesa_create_visual(
-		bDouble,    /* double buffer */
-		GL_FALSE,			// stereo
-		lpPFD->cRedBits,
-		lpPFD->cGreenBits,
-		lpPFD->cBlueBits,
-		dwAlphaBits,
-		dwDepthBits,
-		dwStencilBits,
-		lpPFD->cAccumRedBits,	// accum bits
-		lpPFD->cAccumGreenBits,	// accum bits
-		lpPFD->cAccumBlueBits,	// accum bits
-		lpPFD->cAccumAlphaBits,	// accum alpha bits
-		1				// num samples
-		);
-#else // _USE_GLD3_WGL
-	lpCtx->glVis = (*mesaFuncs.gl_create_visual)(
-		GL_TRUE,			// RGB mode
-		bAlphaSW,			// Is an alpha buffer required?
-		bDouble,			// Is an double-buffering required?
-		GL_FALSE,			// stereo
-		dwDepthBits,		// depth_size
-		dwStencilBits,		// stencil_size
-		lpPFD->cAccumBits,	// accum_size
-		0,					// colour-index bits
-		lpPFD->cRedBits,	// Red bit count
-		lpPFD->cGreenBits,	// Green bit count
-		lpPFD->cBlueBits,	// Blue bit count
-		dwAlphaBits			// Alpha bit count
-		);
-#endif // _USE_GLD3_WGL
-
-	if (lpCtx->glVis == NULL) {
-		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_visual failed\n");
-		goto return_with_error;
-	}
-
-#ifdef _USE_GLD3_WGL
-	lpCtx->glCtx = _mesa_create_context(API_OPENGL, lpCtx->glVis, NULL, (void *)lpCtx, GL_TRUE);
-#else
-	// Create the Mesa context
-	lpCtx->glCtx = (*mesaFuncs.gl_create_context)(
-					lpCtx->glVis,	// Mesa visual
-					NULL,			// share list context
-					(void *)lpCtx,	// Pointer to our driver context
-					GL_TRUE			// Direct context flag
-				   );
-#endif // _USE_GLD3_WGL
-
-	if (lpCtx->glCtx == NULL) {
-		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_context failed\n");
-		goto return_with_error;
-	}
-
-	// Create the Mesa framebuffer
-#ifdef _USE_GLD3_WGL
-	lpCtx->glBuffer = _mesa_create_framebuffer(
-		lpCtx->glVis,
-		lpCtx->glVis->depthBits > 0,
-		lpCtx->glVis->stencilBits > 0,
-		lpCtx->glVis->accumRedBits > 0,
-		GL_FALSE //swalpha
-		);
-#else
-	lpCtx->glBuffer = (*mesaFuncs.gl_create_framebuffer)(lpCtx->glVis);
-#endif // _USE_GLD3_WGL
-
-	if (lpCtx->glBuffer == NULL) {
-		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_framebuffer failed\n");
-		goto return_with_error;
-	}
-
-#ifdef _USE_GLD3_WGL
-	// Init Mesa internals
-	_swrast_CreateContext( lpCtx->glCtx );
-	_vbo_CreateContext( lpCtx->glCtx );
-	_tnl_CreateContext( lpCtx->glCtx );
-	_swsetup_CreateContext( lpCtx->glCtx );
-
-	_gldDriver.InitialiseMesa(lpCtx);
-	
-	lpCtx->glCtx->imports.warning	= _gld_mesa_warning;
-	lpCtx->glCtx->imports.fatal		= _gld_mesa_fatal;
-
-#else
-	// Tell Mesa how many texture stages we have
-	glb.wMaxSimultaneousTextures = lpCtx->D3DDevDesc.wMaxSimultaneousTextures;
-	// Only use as many Units as the spec requires
-	if (glb.wMaxSimultaneousTextures > MAX_TEXTURE_UNITS)
-		glb.wMaxSimultaneousTextures = MAX_TEXTURE_UNITS;
-	lpCtx->glCtx->Const.MaxTextureUnits = glb.wMaxSimultaneousTextures;
-	ddlogPrintf(DDLOG_INFO, "Texture stages   : %d", glb.wMaxSimultaneousTextures);
-
-	// Set the max texture size.
-	// NOTE: clamped to a max of 1024 for extra performance!
-	lpCtx->dwMaxTextureSize = (lpCtx->D3DDevDesc.dwMaxTextureWidth <= 1024) ? lpCtx->D3DDevDesc.dwMaxTextureWidth : 1024;
-
-// Texture resize takes place elsewhere. KH
-// NOTE: This was added to workaround an issue with the Intel app.
-#if 0
-	lpCtx->glCtx->Const.MaxTextureSize = lpCtx->dwMaxTextureSize;
-#else
-	lpCtx->glCtx->Const.MaxTextureSize = 1024;
-#endif
-	lpCtx->glCtx->Const.MaxDrawBuffers = 1;
-
-	// Setup the Display Driver pointers
-	dglSetupDDPointers(lpCtx->glCtx);
-
-	// Initialise all the Direct3D renderstates
-	dglInitStateD3D(lpCtx->glCtx);
-
-#if 0
-	// Signal a reload of texture state on next glBegin
-	lpCtx->m_texHandleValid = FALSE;
-	lpCtx->m_mtex = FALSE;
-	lpCtx->m_texturing = FALSE;
-#else
-	// Set default texture unit state
-//	dglSetTexture(lpCtx, 0, NULL);
-//	dglSetTexture(lpCtx, 1, NULL);
-#endif
-
-	//
-	// Set the global texture palette to default values.
-	//
-
-	// Clear the entire palette
-	ZeroMemory(ppe, sizeof(PALETTEENTRY) * 256);
-
-	// Fill the palette with a default colour.
-	// A garish colour is used to catch bugs. Here Magenta is used.
-	for (i=0; i < 256; i++) {
-		ppe[i].peRed	= 255;
-		ppe[i].peGreen	= 0;
-		ppe[i].peBlue	= 255;
-	}
-
-	RELEASE(lpCtx->lpGlobalPalette);
-
-	if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpGlobalPalette)
-		hResult = IDirectDrawPalette_AddRef(lpCtx->lpGlobalPalette = glb.lpGlobalPalette);
-	else
-		hResult = IDirectDraw4_CreatePalette(
-				lpCtx->lpDD4,
-				DDPCAPS_INITIALIZE | DDPCAPS_8BIT | DDPCAPS_ALLOW256,
-				ppe,
-				&(lpCtx->lpGlobalPalette),
-				NULL);
-	if (FAILED(hResult)) {
-		ddlogError(DDLOG_ERROR, "Default CreatePalette failed\n", hResult);
-		lpCtx->lpGlobalPalette = NULL;
-		goto return_with_error;
-	}
-	if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpGlobalPalette)
-		IDirectDrawPalette_AddRef(glb.lpGlobalPalette = lpCtx->lpGlobalPalette);
-
-#endif // _USE_GLD3_WGL
-
-	// ** If we have made it to here then we can enable rendering **
-	lpCtx->bCanRender = TRUE;
-
-//	ddlogMessage(DDLOG_SYSTEM, "dglCreateContextBuffers succeded\n");
-
-#ifdef GLD_THREADS
-	// Release serialized access
-	if (glb.bMultiThreaded)
-		LeaveCriticalSection(&CriticalSection);
-#endif
-
-	return TRUE;
-
-return_with_error:
-	// Clean up before returning.
-	// This is critical for secondary devices.
-
-	lpCtx->bCanRender = FALSE;
-
-#ifdef _USE_GLD3_WGL
-	// Destroy the Mesa context
-	if (lpCtx->glBuffer)
-		_mesa_destroy_framebuffer(lpCtx->glBuffer);
-	if (lpCtx->glCtx)
-		_mesa_destroy_context(lpCtx->glCtx);
-	if (lpCtx->glVis)
-		_mesa_destroy_visual(lpCtx->glVis);
-
-	// Destroy driver data
-	_gldDriver.DestroyDrawable(lpCtx);
-#else
-	// Destroy the Mesa context
-	if (lpCtx->glBuffer)
-		(*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);
-	if (lpCtx->glCtx)
-		(*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);
-	if (lpCtx->glVis)
-		(*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);
-
-	RELEASE(lpCtx->m_pvbuf); // Release D3D vertex buffer
-	RELEASE(lpCtx->m_vbuf); // Release D3D vertex buffer
-
-	if (lpCtx->lpViewport3) {
-		if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
-		RELEASE(lpCtx->lpViewport3);
-		lpCtx->lpViewport3 = NULL;
-	}
-
-	RELEASE(lpCtx->lpDev3);
-	if (lpCtx->lpDepth4) {
-		if (lpCtx->lpBack4)
-			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);
-		else
-			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);
-		RELEASE(lpCtx->lpDepth4);
-		lpCtx->lpDepth4 = NULL;
-	}
-	RELEASE(lpCtx->lpBack4);
-	RELEASE(lpCtx->lpFront4);
-	else
-	if (lpCtx->bFullscreen) {
-		IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);
-		IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);
-	}
-	RELEASE(lpCtx->lpD3D3);
-	RELEASE(lpCtx->lpDD4);
-	RELEASE(lpCtx->lpDD1);
-#endif // _USE_GLD3_WGL
-
-	lpCtx->bAllocated = FALSE;
-
-#ifdef GLD_THREADS
-	// Release serialized access
-	if (glb.bMultiThreaded)
-		LeaveCriticalSection(&CriticalSection);
-#endif
-
-	return FALSE;
-
-#undef DDLOG_CRITICAL_OR_WARN
-}
-
-// ***********************************************************************
-
-HGLRC dglCreateContext(
-	HDC a,
-	const DGL_pixelFormat *lpPF)
-{
-	int i;
-	HGLRC				hGLRC;
-	DGL_ctx*			lpCtx;
-	static BOOL			bWarnOnce = TRUE;
-	DWORD				dwThreadId = GetCurrentThreadId();
-    char                szMsg[256];
-    HWND                hWnd;
-    LONG                lpfnWndProc;
-
-	// Validate license
-	if (!dglValidate())
-		return NULL;
-
-	// Is context state ready ?
-	if (!bContextReady)
-		return NULL;
-
-	ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext for HDC=%X, ThreadId=%X", a, dwThreadId);
-
-	// Find next free context.
-	// Also ensure that only one Fullscreen context is created at any one time.
-	hGLRC = 0; // Default to Not Found
-	for (i=0; i<DGL_MAX_CONTEXTS; i++) {
-		if (ctxlist[i].bAllocated) {
-			if (/*glb.bFullscreen && */ctxlist[i].bFullscreen)
-				break;
-		} else {
-			hGLRC = (HGLRC)(i+1);
-			break;
-		}
-	}
-
-	// Bail if no GLRC was found
-	if (!hGLRC)
-		return NULL;
-
-	// Set the context pointer
-	lpCtx = dglGetContextAddress(hGLRC);
-	// Make sure that context is zeroed before we do anything.
-	// MFC and C++ apps call wglCreateContext() and wglDeleteContext() multiple times,
-	// even though only one context is ever used by the app, so keep it clean. (DaveM)
-	ZeroMemory(lpCtx, sizeof(DGL_ctx));
-	lpCtx->bAllocated = TRUE;
-	// Flag that buffers need creating on next wglMakeCurrent call.
-	lpCtx->bHasBeenCurrent = FALSE;
-	lpCtx->lpPF = (DGL_pixelFormat *)lpPF;	// cache pixel format
-	lpCtx->bCanRender = FALSE;
-
-	// Create all the internal resources here, not in dglMakeCurrent().
-	// We do a re-size check in dglMakeCurrent in case of re-allocations. (DaveM)
-	// We now try context allocations twice, first with video memory,
-	// then again with system memory. This is similar to technique
-	// used for dglWglResizeBuffers(). (DaveM)
-	if (lpCtx->bHasBeenCurrent == FALSE) {
-		if (!dglCreateContextBuffers(a, lpCtx, FALSE)) {
-			if (glb.bMessageBoxWarnings && bWarnOnce && dwLogging) {
-				bWarnOnce = FALSE;
-                switch (nContextError) {
-                   case GLDERR_DDRAW: strcpy(szMsg, szDDrawWarning); break;
-                   case GLDERR_D3D: strcpy(szMsg, szD3DWarning); break;
-                   case GLDERR_MEM: strcpy(szMsg, szResourceWarning); break;
-                   case GLDERR_BPP: strcpy(szMsg, szBPPWarning); break;
-                   default: strcpy(szMsg, "");
-                }
-                if (strlen(szMsg))
-                    MessageBox(NULL, szMsg, "GLDirect", MB_OK | MB_ICONWARNING);
-			}
-            // Only need to try again if memory error
-            if (nContextError == GLDERR_MEM) {
-			    ddlogPrintf(DDLOG_WARN, "dglCreateContext failed 1st time with video memory");
-            }
-            else {
-			    ddlogPrintf(DDLOG_ERROR, "dglCreateContext failed");
-                return NULL;
-            }
-		}
-	}
-
-	// Now that we have a hWnd, we can intercept the WindowProc.
-    hWnd = lpCtx->hWnd;
-    if (hWnd) {
-		// Only hook individual window handler once if not hooked before.
-		lpfnWndProc = GetWindowLong(hWnd, GWL_WNDPROC);
-		if (lpfnWndProc != (LONG)dglWndProc) {
-			lpCtx->lpfnWndProc = lpfnWndProc;
-			SetWindowLong(hWnd, GWL_WNDPROC, (LONG)dglWndProc);
-			}
-        // Find the parent window of the app too.
-        if (glb.hWndActive == NULL) {
-            while (hWnd != NULL) {
-                glb.hWndActive = hWnd;
-                hWnd = GetParent(hWnd);
-            }
-            // Hook the parent window too.
-            lpfnWndProc = GetWindowLong(glb.hWndActive, GWL_WNDPROC);
-            if (glb.hWndActive == lpCtx->hWnd)
-                glb.lpfnWndProc = lpCtx->lpfnWndProc;
-            else if (lpfnWndProc != (LONG)dglWndProc)
-                glb.lpfnWndProc = lpfnWndProc;
-            if (glb.lpfnWndProc)
-                SetWindowLong(glb.hWndActive, GWL_WNDPROC, (LONG)dglWndProc);
-        }
-    }
-
-	ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext succeeded for HGLRC=%d", (int)hGLRC);
-
-	return hGLRC;
-}
-
-// ***********************************************************************
-// Make a DirectGL context current
-// Used by wgl functions and dgl functions
-BOOL dglMakeCurrent(
-	HDC a,
-	HGLRC b)
-{
-	int context;
-	DGL_ctx* lpCtx;
-	HWND hWnd;
-	BOOL bNeedResize = FALSE;
-	BOOL bWindowChanged, bContextChanged;
-	LPDIRECTDRAWCLIPPER	lpddClipper;
-	DWORD dwThreadId = GetCurrentThreadId();
-	LONG lpfnWndProc;
-
-	// Validate license
-	if (!dglValidate())
-		return FALSE;
-
-	// Is context state ready ?
-	if (!bContextReady)
-		return FALSE;
-
-	context = (int)b; // This is as a result of STRICT!
-	ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: HDC=%X, HGLRC=%d, ThreadId=%X", a, context, dwThreadId);
-
-	// If the HGLRC is NULL then make no context current;
-	// Ditto if the HDC is NULL either. (DaveM)
-	if (context == 0 || a == 0) {
-		// Corresponding Mesa operation
-#ifdef _USE_GLD3_WGL
-		_mesa_make_current(NULL, NULL);
-#else
-		(*mesaFuncs.gl_make_current)(NULL, NULL);
-#endif
-		dglSetCurrentContext(0);
-		return TRUE;
-	}
-
-	// Make sure the HGLRC is in range
-	if ((context > DGL_MAX_CONTEXTS) || (context < 0)) {
-		ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: HGLRC out of range\n");
-		return FALSE;
-	}
-
-	// Find address of context and make sure that it has been allocated
-	lpCtx = dglGetContextAddress(b);
-	if (!lpCtx->bAllocated) {
-		ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: Context not allocated\n");
-//		return FALSE;
-		return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH
-	}
-
-#ifdef GLD_THREADS
-	// Serialize access to DirectDraw or DDS operations
-	if (glb.bMultiThreaded)
-		EnterCriticalSection(&CriticalSection);
-#endif
-
-	// Check if window has changed
-	hWnd = (a != lpCtx->hDC) ? WindowFromDC(a) : lpCtx->hWnd;
-	bWindowChanged = (hWnd != lpCtx->hWnd) ? TRUE : FALSE;
-	bContextChanged = (b != dglGetCurrentContext()) ? TRUE : FALSE;
-
-	// If the window has changed, make sure the clipper is updated. (DaveM)
-	if (glb.bDirectDrawPersistant && !lpCtx->bFullscreen && (bWindowChanged || bContextChanged)) {
-		lpCtx->hWnd = hWnd;
-#ifndef _USE_GLD3_WGL
-		IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);
-		IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
-		IDirectDrawClipper_Release(lpddClipper);
-#endif // _USE_GLD3_WGL
-	}
-
-	// Make sure hDC and hWnd is current. (DaveM)
-	// Obtain the dimensions of the rendering window
-	lpCtx->hDC = a; // Cache DC
-	lpCtx->hWnd = hWnd;
-	hWndLastActive = hWnd;
-
-	// Check for non-window DC = memory DC ?
-	if (hWnd == NULL) {
-		if (GetClipBox(a, &lpCtx->rcScreenRect) == ERROR) {
-			ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglMakeCurrent\n");
-			SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
-		}
-	}
-	else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {
-		ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglMakeCurrent\n");
-		SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
-	}
-	// Check if buffers need to be re-sized;
-	// If so, wait until Mesa GL stuff is setup before re-sizing;
-	if (lpCtx->dwWidth != lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left ||
-		lpCtx->dwHeight != lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top)
-		bNeedResize = TRUE;
-
-	// Now we can update our globals
-	dglSetCurrentContext(b);
-
-	// Corresponding Mesa operation
-#ifdef _USE_GLD3_WGL
-	_mesa_make_current(lpCtx->glCtx, lpCtx->glBuffer);
-	lpCtx->glCtx->Driver.UpdateState(lpCtx->glCtx, _NEW_ALL);
-	if (bNeedResize) {
-		// Resize buffers (Note Mesa GL needs to be setup beforehand);
-		// Resize Mesa internal buffer too via glViewport() command,
-		// which subsequently calls dglWglResizeBuffers() too.
-		lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-		lpCtx->bHasBeenCurrent = TRUE;
-	}
-#else
-	(*mesaFuncs.gl_make_current)(lpCtx->glCtx, lpCtx->glBuffer);
-
-	dglSetupDDPointers(lpCtx->glCtx);
-
-	// Insure DirectDraw surfaces fit current window DC
-	if (bNeedResize) {
-		// Resize buffers (Note Mesa GL needs to be setup beforehand);
-		// Resize Mesa internal buffer too via glViewport() command,
-		// which subsequently calls dglWglResizeBuffers() too.
-		(*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-		lpCtx->bHasBeenCurrent = TRUE;
-	}
-#endif // _USE_GLD3_WGL
-	ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: width = %d, height = %d", lpCtx->dwWidth, lpCtx->dwHeight);
-
-	// We have to clear D3D back buffer and render state if emulated front buffering
-	// for different window (but not context) like in Solid Edge.
-	if (glb.bDirectDrawPersistant && glb.bPersistantBuffers
-		&& (bWindowChanged /* || bContextChanged */) && lpCtx->EmulateSingle) {
-#ifdef _USE_GLD3_WGL
-//		IDirect3DDevice8_EndScene(lpCtx->pDev);
-//		lpCtx->bSceneStarted = FALSE;
-		lpCtx->glCtx->Driver.Clear(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,
-			GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#else
-		IDirect3DDevice3_EndScene(lpCtx->lpDev3);
-		lpCtx->bSceneStarted = FALSE;
-		dglClearD3D(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,
-			GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#endif // _USE_GLD3_WGL
-	}
-
-	// The first time we call MakeCurrent we set the initial viewport size
-	if (lpCtx->bHasBeenCurrent == FALSE)
-#ifdef _USE_GLD3_WGL
-		lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#else
-		(*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#endif // _USE_GLD3_WGL
-	lpCtx->bHasBeenCurrent = TRUE;
-
-#ifdef GLD_THREADS
-	// Release serialized access
-	if (glb.bMultiThreaded)
-		LeaveCriticalSection(&CriticalSection);
-#endif
-
-	return TRUE;
-}
-
-// ***********************************************************************
-
-BOOL dglDeleteContext(
-	HGLRC a)
-{
-	DGL_ctx* lpCtx;
-	DWORD dwThreadId = GetCurrentThreadId();
-    char argstr[256];
-
-#if 0	// We have enough trouble throwing exceptions as it is... (DaveM)
-	// Validate license
-	if (!dglValidate())
-		return FALSE;
-#endif
-
-	// Is context state ready ?
-	if (!bContextReady)
-		return FALSE;
-
-	ddlogPrintf(DDLOG_SYSTEM, "dglDeleteContext: Deleting context HGLRC=%d, ThreadId=%X", (int)a, dwThreadId);
-
-	// Make sure the HGLRC is in range
-	if (((int) a> DGL_MAX_CONTEXTS) || ((int)a < 0)) {
-		ddlogMessage(DDLOG_ERROR, "dglDeleteCurrent: HGLRC out of range\n");
-		return FALSE;
-	}
-
-	// Make sure context is valid
-	lpCtx = dglGetContextAddress(a);
-	if (!lpCtx->bAllocated) {
-		ddlogPrintf(DDLOG_WARN, "Tried to delete unallocated context HGLRC=%d", (int)a);
-//		return FALSE;
-		return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH
-	}
-
-	// Make sure context is de-activated
-	if (a == dglGetCurrentContext()) {
-		ddlogPrintf(DDLOG_WARN, "dglDeleteContext: context HGLRC=%d still active", (int)a);
-		dglMakeCurrent(NULL, NULL);
-	}
-
-#ifdef GLD_THREADS
-	// Serialize access to DirectDraw or DDS operations
-	if (glb.bMultiThreaded)
-		EnterCriticalSection(&CriticalSection);
-#endif
-
-	// We are about to destroy all Direct3D objects.
-	// Therefore we must disable rendering
-	lpCtx->bCanRender = FALSE;
-
-	// This exception handler was installed to catch some
-	// particularly nasty apps. Console apps that call exit()
-	// fall into this catagory (i.e. Win32 Glut).
-
-    // VC cannot successfully implement multiple exception handlers
-    // if more than one exception occurs. Therefore reverting back to
-    // single exception handler as Keith originally had it. (DaveM)
-
-#define WARN_MESSAGE(p) strcpy(argstr, (#p));
-#define SAFE_RELEASE(p) WARN_MESSAGE(p); RELEASE(p);
-
-__try {
-#ifdef _USE_GLD3_WGL
-    WARN_MESSAGE(gl_destroy_framebuffer);
-	if (lpCtx->glBuffer)
-		_mesa_destroy_framebuffer(lpCtx->glBuffer);
-    WARN_MESSAGE(gl_destroy_context);
-	if (lpCtx->glCtx)
-		_mesa_destroy_context(lpCtx->glCtx);
-    WARN_MESSAGE(gl_destroy_visual);
-	if (lpCtx->glVis)
-		_mesa_destroy_visual(lpCtx->glVis);
-
-	_gldDriver.DestroyDrawable(lpCtx);
-#else
-	// Destroy the Mesa context
-    WARN_MESSAGE(gl_destroy_framebuffer);
-	if (lpCtx->glBuffer)
-		(*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);
-    WARN_MESSAGE(gl_destroy_context);
-	if (lpCtx->glCtx)
-		(*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);
-    WARN_MESSAGE(gl_destroy_visual);
-	if (lpCtx->glVis)
-		(*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);
-
-	SAFE_RELEASE(lpCtx->m_pvbuf); // release D3D vertex buffer
-	SAFE_RELEASE(lpCtx->m_vbuf); // release D3D vertex buffer
-
-	// Delete the global palette
-	SAFE_RELEASE(lpCtx->lpGlobalPalette);
-
-	// Clean up.
-	if (lpCtx->lpViewport3) {
-		if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
-		SAFE_RELEASE(lpCtx->lpViewport3);
-		lpCtx->lpViewport3 = NULL;
-	}
-
-	SAFE_RELEASE(lpCtx->lpDev3);
-	if (lpCtx->lpDepth4) {
-		if (lpCtx->lpBack4)
-			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);
-		else
-			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);
-		SAFE_RELEASE(lpCtx->lpDepth4);
-		lpCtx->lpDepth4 = NULL;
-	}
-	SAFE_RELEASE(lpCtx->lpBack4);
-	SAFE_RELEASE(lpCtx->lpFront4);
-	if (lpCtx->bFullscreen) {
-		IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);
-		IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);
-	}
-	SAFE_RELEASE(lpCtx->lpD3D3);
-	SAFE_RELEASE(lpCtx->lpDD4);
-	SAFE_RELEASE(lpCtx->lpDD1);
-#endif // _ULSE_GLD3_WGL
-
-}
-__except(EXCEPTION_EXECUTE_HANDLER) {
-    ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContext: %s", argstr);
-}
-
-	// Restore the window message handler because this context may be used
-	// again by another window with a *different* message handler. (DaveM)
-	if (lpCtx->lpfnWndProc) {
-		SetWindowLong(lpCtx->hWnd, GWL_WNDPROC, (LONG)lpCtx->lpfnWndProc);
-		lpCtx->lpfnWndProc = (LONG)NULL;
-		}
-
-	lpCtx->bAllocated = FALSE; // This context is now free for use
-
-#ifdef GLD_THREADS
-	// Release serialized access
-	if (glb.bMultiThreaded)
-		LeaveCriticalSection(&CriticalSection);
-#endif
-
-	return TRUE;
-}
-
-// ***********************************************************************
-
-BOOL dglSwapBuffers(
-	HDC hDC)
-{
-	RECT		rSrcRect;	// Source rectangle
-	RECT		rDstRect;	// Destination rectangle
-	POINT		pt;
-	HRESULT		hResult;
-
-	DDBLTFX		bltFX;
-	DWORD		dwBlitFlags;
-	DDBLTFX		*lpBltFX;
-
-//	DWORD		dwThreadId = GetCurrentThreadId();
-	HGLRC		hGLRC = dglGetCurrentContext();
-	DGL_ctx		*lpCtx = dglGetContextAddress(hGLRC);
-	HWND		hWnd;
-
-	HDC 		hDCAux;		// for memory DC
-	int 		x,y,w,h;	// for memory DC BitBlt
-
-#if 0	// Perhaps not a good idea. Called too often. KH
-	// Validate license
-	if (!dglValidate())
-		return FALSE;
-#endif
-
-	if (!lpCtx) {
-		return TRUE; //FALSE; // No current context
-	}
-
-	if (!lpCtx->bCanRender) {
-		// Don't return false else some apps will bail.
-		return TRUE;
-	}
-
-	hWnd = lpCtx->hWnd;
-	if (hDC != lpCtx->hDC) {
-		ddlogPrintf(DDLOG_WARN, "dglSwapBuffers: HDC=%X does not match HDC=%X for HGLRC=%d", hDC, lpCtx->hDC, hGLRC);
-		hWnd = WindowFromDC(hDC);
-	}
-
-#ifndef _USE_GLD3_WGL
-	// Ensure that the surfaces exist before we tell
-	// the device to render to them.
-	IDirectDraw4_RestoreAllSurfaces(lpCtx->lpDD4);
-
-	// Make sure that the vertex caches have been emptied
-//	dglStateChange(lpCtx);
-
-	// Some OpenGL programs don't issue a glFinish - check for it here.
-	if (lpCtx->bSceneStarted) {
-		IDirect3DDevice3_EndScene(lpCtx->lpDev3);
-		lpCtx->bSceneStarted = FALSE;
-	}
-#endif
-
-#if 0
-	// If the calling app is not active then we don't need to Blit/Flip.
-	// We can therefore simply return TRUE.
-	if (!glb.bAppActive)
-		return TRUE;
-	// Addendum: This is WRONG! We should bail if the app is *minimized*,
-	//           not merely if the app is just plain 'not active'.
-	//           KeithH, 27/May/2000.
-#endif
-
-	// Check for non-window DC = memory DC ?
-	if (hWnd == NULL) {
-		if (GetClipBox(hDC, &rSrcRect) == ERROR)
-			return TRUE;
-		// Use GDI BitBlt instead from compatible DirectDraw DC
-		x = rSrcRect.left;
-		y = rSrcRect.top;
-		w = rSrcRect.right - rSrcRect.left;
-		h = rSrcRect.bottom - rSrcRect.top;
-
-		// Ack. DX8 does not have a GetDC() function...
-                // TODO: Defer to DX7 or DX9 drivers... (DaveM)
-		return TRUE;
-	}
-
-	// Bail if window client region is not drawable, like in Solid Edge
-	if (!IsWindow(hWnd) /* || !IsWindowVisible(hWnd) */ || !GetClientRect(hWnd, &rSrcRect))
-		return TRUE;
-
-#ifdef GLD_THREADS
-	// Serialize access to DirectDraw or DDS operations
-	if (glb.bMultiThreaded)
-		EnterCriticalSection(&CriticalSection);
-#endif
-
-#ifdef _USE_GLD3_WGL
-	// Notify Mesa of impending swap, so Mesa can flush internal buffers.
-	_mesa_notifySwapBuffers(lpCtx->glCtx);
-	// Now perform driver buffer swap
-	_gldDriver.SwapBuffers(lpCtx, hDC, hWnd);
-#else
-	if (lpCtx->bFullscreen) {
-		// Sync with retrace if required
-		if (glb.bWaitForRetrace) {
-			IDirectDraw4_WaitForVerticalBlank(
-				lpCtx->lpDD4,
-				DDWAITVB_BLOCKBEGIN,
-				0);
-		}
-
-		// Perform the fullscreen flip
-		TRY(IDirectDrawSurface4_Flip(
-			lpCtx->lpFront4,
-			NULL,
-			DDFLIP_WAIT),
-			"dglSwapBuffers: Flip");
-	} else {
-		// Calculate current window position and size
-		pt.x = pt.y = 0;
-		ClientToScreen(hWnd, &pt);
-		GetClientRect(hWnd, &rDstRect);
-		if (rDstRect.right > lpCtx->dwModeWidth)
-			rDstRect.right = lpCtx->dwModeWidth;
-		if (rDstRect.bottom > lpCtx->dwModeHeight)
-			rDstRect.bottom = lpCtx->dwModeHeight;
-		OffsetRect(&rDstRect, pt.x, pt.y);
-		rSrcRect.left = rSrcRect.top = 0;
-		rSrcRect.right = lpCtx->dwWidth;
-		rSrcRect.bottom = lpCtx->dwHeight;
-		if (rSrcRect.right > lpCtx->dwModeWidth)
-			rSrcRect.right = lpCtx->dwModeWidth;
-		if (rSrcRect.bottom > lpCtx->dwModeHeight)
-			rSrcRect.bottom = lpCtx->dwModeHeight;
-
-		if (glb.bWaitForRetrace) {
-			// Sync the blit to the vertical retrace
-			ZeroMemory(&bltFX, sizeof(bltFX));
-			bltFX.dwSize = sizeof(bltFX);
-			bltFX.dwDDFX = DDBLTFX_NOTEARING;
-			dwBlitFlags = DDBLT_WAIT | DDBLT_DDFX;
-			lpBltFX = &bltFX;
-		} else {
-			dwBlitFlags = DDBLT_WAIT;
-			lpBltFX = NULL;
-		}
-
-		// Perform the actual blit
-		TRY(IDirectDrawSurface4_Blt(
-			lpCtx->lpFront4,
-			&rDstRect,
-			lpCtx->lpBack4, // Blit source
-			&rSrcRect,
-			dwBlitFlags,
-			lpBltFX),
-			"dglSwapBuffers: Blt");
-	}
-#endif // _USE_GLD3_WGL
-
-#ifdef GLD_THREADS
-	// Release serialized access
-	if (glb.bMultiThreaded)
-		LeaveCriticalSection(&CriticalSection);
-#endif
-
-    // TODO: Re-instate rendering bitmap snapshot feature??? (DaveM)
-
-	// Render frame is completed
-	ValidateRect(hWnd, NULL);
-	lpCtx->bFrameStarted = FALSE;
-
-	return TRUE;
-}
-
-// ***********************************************************************
+/****************************************************************************

+*

+*                        Mesa 3-D graphics library

+*                        Direct3D Driver Interface

+*

+*  ========================================================================

+*

+*   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.

+*

+*   Permission is hereby granted, free of charge, to any person obtaining a

+*   copy of this software and associated documentation files (the "Software"),

+*   to deal in the Software without restriction, including without limitation

+*   the rights to use, copy, modify, merge, publish, distribute, sublicense,

+*   and/or sell copies of the Software, and to permit persons to whom the

+*   Software is furnished to do so, subject to the following conditions:

+*

+*   The above copyright notice and this permission notice shall be included

+*   in all copies or substantial portions of the Software.

+*

+*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+*   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+*   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+*   SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

+*   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF

+*   OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+*   SOFTWARE.

+*

+*  ======================================================================

+*

+* Language:     ANSI C

+* Environment:  Windows 9x (Win32)

+*

+* Description:  Context handling.

+*

+****************************************************************************/

+

+#include "dglcontext.h"

+

+// Get compile errors without this. KeithH

+//#include "scitech.h"	// ibool, etc.

+

+#ifdef _USE_GLD3_WGL

+#include "gld_driver.h"

+

+extern void _gld_mesa_warning(struct gl_context *, char *);

+extern void _gld_mesa_fatal(struct gl_context *, char *);

+#endif // _USE_GLD3_WGL

+

+// TODO: Clean out old DX6-specific code from GLD 2.x CAD driver

+// if it is no longer being built as part of GLDirect. (DaveM)

+

+// ***********************************************************************

+

+#define GLDERR_NONE     0

+#define GLDERR_MEM      1

+#define GLDERR_DDRAW    2

+#define GLDERR_D3D      3

+#define GLDERR_BPP      4

+

+char szResourceWarning[] =

+"GLDirect does not have enough video memory resources\n"

+"to support the requested OpenGL rendering context.\n\n"

+"You may have to reduce the current display resolution\n"

+"to obtain satisfactory OpenGL performance.\n";

+

+char szDDrawWarning[] =

+"GLDirect is unable to initialize DirectDraw for the\n"

+"requested OpenGL rendering context.\n\n"

+"You will have to check the DirectX control panel\n"

+"for further information.\n";

+

+char szD3DWarning[] =

+"GLDirect is unable to initialize Direct3D for the\n"

+"requested OpenGL rendering context.\n\n"

+"You may have to change the display mode resolution\n"

+"color depth or check the DirectX control panel for\n"

+"further information.\n";

+

+char szBPPWarning[] =

+"GLDirect is unable to use the selected color depth for\n"

+"the requested OpenGL rendering context.\n\n"

+"You will have to change the display mode resolution\n"

+"color depth with the Display Settings control panel.\n";

+

+int nContextError = GLDERR_NONE;

+

+// ***********************************************************************

+

+#define VENDORID_ATI 0x1002

+

+static DWORD devATIRagePro[] = {

+	0x4742, // 3D RAGE PRO BGA AGP 1X/2X

+	0x4744, // 3D RAGE PRO BGA AGP 1X only

+	0x4749, // 3D RAGE PRO BGA PCI 33 MHz

+	0x4750, // 3D RAGE PRO PQFP PCI 33 MHz

+	0x4751, // 3D RAGE PRO PQFP PCI 33 MHz limited 3D

+	0x4C42, // 3D RAGE LT PRO BGA-312 AGP 133 MHz

+	0x4C44, // 3D RAGE LT PRO BGA-312 AGP 66 MHz

+	0x4C49, // 3D RAGE LT PRO BGA-312 PCI 33 MHz

+	0x4C50, // 3D RAGE LT PRO BGA-256 PCI 33 MHz

+	0x4C51, // 3D RAGE LT PRO BGA-256 PCI 33 MHz limited 3D

+};

+

+static DWORD devATIRageIIplus[] = {

+	0x4755, // 3D RAGE II+

+	0x4756, // 3D RAGE IIC PQFP PCI

+	0x4757, // 3D RAGE IIC BGA AGP

+	0x475A, // 3D RAGE IIC PQFP AGP

+	0x4C47, // 3D RAGE LT-G

+};

+

+// ***********************************************************************

+

+#ifndef _USE_GLD3_WGL

+extern DGL_mesaFuncs mesaFuncs;

+#endif

+

+extern DWORD dwLogging;

+

+#ifdef GLD_THREADS

+#pragma message("compiling DGLCONTEXT.C vars for multi-threaded support")

+CRITICAL_SECTION CriticalSection;		// for serialized access

+DWORD		dwTLSCurrentContext = 0xFFFFFFFF;	// TLS index for current context

+DWORD		dwTLSPixelFormat = 0xFFFFFFFF;		// TLS index for current pixel format

+#endif

+HGLRC		iCurrentContext = 0;		// Index of current context (static)

+BOOL		bContextReady = FALSE;		// Context state ready ?

+

+DGL_ctx		ctxlist[DGL_MAX_CONTEXTS];	// Context list

+

+// ***********************************************************************

+

+static BOOL bHaveWin95 = FALSE;

+static BOOL bHaveWinNT = FALSE;

+static BOOL bHaveWin2K = FALSE;

+

+/****************************************************************************

+REMARKS:

+Detect the installed OS type.

+****************************************************************************/

+static void DetectOS(void)

+{

+    OSVERSIONINFO VersionInformation;

+    LPOSVERSIONINFO lpVersionInformation = &VersionInformation;

+

+    VersionInformation.dwOSVersionInfoSize = sizeof(VersionInformation);

+

+	GetVersionEx(lpVersionInformation);

+

+    switch (VersionInformation.dwPlatformId) {

+    	case VER_PLATFORM_WIN32_WINDOWS:

+			bHaveWin95 = TRUE;

+			bHaveWinNT = FALSE;

+			bHaveWin2K = FALSE;

+            break;

+    	case VER_PLATFORM_WIN32_NT:

+			bHaveWin95 = FALSE;

+			if (VersionInformation.dwMajorVersion <= 4) {

+				bHaveWinNT = TRUE;

+				bHaveWin2K = FALSE;

+                }

+            else {

+				bHaveWinNT = FALSE;

+				bHaveWin2K = TRUE;

+                }

+			break;

+		case VER_PLATFORM_WIN32s:

+			bHaveWin95 = FALSE;

+			bHaveWinNT = FALSE;

+			bHaveWin2K = FALSE;

+			break;

+        }

+}

+

+// ***********************************************************************

+

+HWND hWndEvent = NULL;					// event monitor window

+HWND hWndLastActive = NULL;				// last active client window

+LONG __stdcall GLD_EventWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);

+

+// ***********************************************************************

+

+// Checks if the HGLRC is valid in range of context list.

+BOOL dglIsValidContext(

+	HGLRC a)

+{

+	return ((int)a > 0 && (int)a <= DGL_MAX_CONTEXTS);

+}

+

+// ***********************************************************************

+

+// Convert a HGLRC to a pointer into the context list.

+DGL_ctx* dglGetContextAddress(

+	const HGLRC a)

+{

+	if (dglIsValidContext(a))

+		return &ctxlist[(int)a-1];

+	return NULL;

+}

+

+// ***********************************************************************

+

+// Return the current HGLRC (however it may be stored for multi-threading).

+HGLRC dglGetCurrentContext(void)

+{

+#ifdef GLD_THREADS

+	HGLRC hGLRC;

+	// load from thread-specific instance

+	if (glb.bMultiThreaded) {

+		// protect against calls from arbitrary threads

+		__try {

+			hGLRC = (HGLRC)TlsGetValue(dwTLSCurrentContext);

+		}

+		__except(EXCEPTION_EXECUTE_HANDLER) {

+			hGLRC = iCurrentContext;

+		}

+	}

+	// load from global static var

+	else {

+		hGLRC = iCurrentContext;

+	}

+	return hGLRC;

+#else

+	return iCurrentContext;

+#endif

+}

+

+// ***********************************************************************

+

+// Set the current HGLRC (however it may be stored for multi-threading).

+void dglSetCurrentContext(HGLRC hGLRC)

+{

+#ifdef GLD_THREADS

+	// store in thread-specific instance

+	if (glb.bMultiThreaded) {

+		// protect against calls from arbitrary threads

+		__try {

+			TlsSetValue(dwTLSCurrentContext, (LPVOID)hGLRC);

+		}

+		__except(EXCEPTION_EXECUTE_HANDLER) {

+			iCurrentContext = hGLRC;

+		}

+	}

+	// store in global static var

+	else {

+		iCurrentContext = hGLRC;

+	}

+#else

+	iCurrentContext = hGLRC;

+#endif

+}

+

+// ***********************************************************************

+

+// Return the current HDC only for a currently active HGLRC.

+HDC dglGetCurrentDC(void)

+{

+	HGLRC hGLRC;

+	DGL_ctx* lpCtx;

+

+	hGLRC = dglGetCurrentContext();

+	if (hGLRC) {

+		lpCtx = dglGetContextAddress(hGLRC);

+		return lpCtx->hDC;

+	}

+	return 0;

+}

+

+// ***********************************************************************

+

+void dglInitContextState()

+{

+	int i;

+	WNDCLASS wc;

+

+#ifdef GLD_THREADS

+	// Allocate thread local storage indexes for current context and pixel format

+	dwTLSCurrentContext = TlsAlloc();

+	dwTLSPixelFormat = TlsAlloc();

+#endif

+

+	dglSetCurrentContext(NULL); // No current rendering context

+

+	 // Clear all context data

+	ZeroMemory(ctxlist, sizeof(ctxlist[0]) * DGL_MAX_CONTEXTS);

+

+	for (i=0; i<DGL_MAX_CONTEXTS; i++)

+		ctxlist[i].bAllocated = FALSE; // Flag context as unused

+

+	// This section of code crashes the dll in circumstances where the app

+	// creates and destroys contexts.

+/*

+	// Register the class for our event monitor window

+	wc.style = 0;

+	wc.lpfnWndProc = GLD_EventWndProc;

+	wc.cbClsExtra = 0;

+	wc.cbWndExtra = 0;

+	wc.hInstance = GetModuleHandle(NULL);

+	wc.hIcon = LoadIcon(GetModuleHandle(NULL), IDI_APPLICATION);

+	wc.hCursor = LoadCursor(NULL, IDC_ARROW);

+	wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);

+	wc.lpszMenuName = NULL;

+	wc.lpszClassName = "GLDIRECT";

+	RegisterClass(&wc);

+

+	// Create the non-visible window to monitor all broadcast messages

+	hWndEvent = CreateWindowEx(

+		WS_EX_TOOLWINDOW,"GLDIRECT","GLDIRECT",WS_POPUP,

+		0,0,0,0,

+		NULL,NULL,GetModuleHandle(NULL),NULL);

+*/

+

+#ifdef GLD_THREADS

+	// Create a critical section object for serializing access to

+	// DirectDraw and DDStereo create/destroy functions in multiple threads

+	if (glb.bMultiThreaded)

+		InitializeCriticalSection(&CriticalSection);

+#endif

+

+	// Context state is now initialized and ready

+	bContextReady = TRUE;

+}

+

+// ***********************************************************************

+

+void dglDeleteContextState()

+{

+	int i;

+	static BOOL bOnceIsEnough = FALSE;

+

+	// Only call once, from either DGL_exitDriver(), or DLL_PROCESS_DETACH

+	if (bOnceIsEnough)

+		return;

+	bOnceIsEnough = TRUE;

+

+	for (i=0; i<DGL_MAX_CONTEXTS; i++) {

+		if (ctxlist[i].bAllocated == TRUE) {

+			ddlogPrintf(DDLOG_WARN, "** Context %i not deleted - cleaning up.", (i+1));

+			dglDeleteContext((HGLRC)(i+1));

+		}

+	}

+

+	// Context state is no longer ready

+	bContextReady = FALSE;

+

+    // If executed when DLL unloads, DDraw objects may be invalid.

+    // So catch any page faults with this exception handler.

+__try {

+

+	// Release final DirectDraw interfaces

+	if (glb.bDirectDrawPersistant) {

+//		RELEASE(glb.lpGlobalPalette);

+//		RELEASE(glb.lpDepth4);

+//		RELEASE(glb.lpBack4);

+//		RELEASE(glb.lpPrimary4);

+//	    RELEASE(glb.lpDD4);

+    }

+}

+__except(EXCEPTION_EXECUTE_HANDLER) {

+    ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContextState.");

+}

+

+	// Destroy our event monitor window

+	if (hWndEvent) {

+		DestroyWindow(hWndEvent);

+		hWndEvent = hWndLastActive = NULL;

+	}

+

+#ifdef GLD_THREADS

+	// Destroy the critical section object

+	if (glb.bMultiThreaded)

+		DeleteCriticalSection(&CriticalSection);

+

+	// Release thread local storage indexes for current HGLRC and pixel format

+	TlsFree(dwTLSPixelFormat);

+	TlsFree(dwTLSCurrentContext);

+#endif

+}

+

+// ***********************************************************************

+

+// Application Window message handler interception

+static LONG __stdcall dglWndProc(

+	HWND hwnd,

+	UINT msg,

+	WPARAM wParam,

+	LPARAM lParam)

+{

+	DGL_ctx* 	lpCtx = NULL;

+	LONG 		lpfnWndProc = 0L;

+	int  		i;

+	HGLRC 		hGLRC;

+	RECT 		rect;

+	PAINTSTRUCT	ps;

+    BOOL        bQuit = FALSE;

+    BOOL        bMain = FALSE;

+    LONG        rc;

+

+    // Get the window's message handler *before* it is unhooked in WM_DESTROY

+

+    // Is this the main window?

+    if (hwnd == glb.hWndActive) {

+        bMain = TRUE;

+        lpfnWndProc = glb.lpfnWndProc;

+    }

+    // Search for DGL context matching window handle

+    for (i=0; i<DGL_MAX_CONTEXTS; i++) {

+	    if (ctxlist[i].hWnd == hwnd) {

+	        lpCtx = &ctxlist[i];

+	        lpfnWndProc = lpCtx->lpfnWndProc;

+		    break;

+        }

+    }

+	// Not one of ours...

+	if (!lpfnWndProc)

+	    return DefWindowProc(hwnd, msg, wParam, lParam);

+

+    // Intercept messages amd process *before* passing on to window

+	switch (msg) {

+#ifdef _USE_GLD3_WGL

+	case WM_DISPLAYCHANGE:

+		glb.bPixelformatsDirty = TRUE;

+		break;

+#endif

+	case WM_ACTIVATEAPP:

+		glb.bAppActive = (BOOL)wParam;

+		ddlogPrintf(DDLOG_INFO, "Calling app has been %s", glb.bAppActive ? "activated" : "de-activated");

+		break;

+	case WM_ERASEBKGND:

+		// Eat the GDI erase event for the GL window

+        if (!lpCtx || !lpCtx->bHasBeenCurrent)

+            break;

+		lpCtx->bGDIEraseBkgnd = TRUE;

+		return TRUE;

+	case WM_PAINT:

+		// Eat the invalidated update region if render scene is in progress

+        if (!lpCtx || !lpCtx->bHasBeenCurrent)

+            break;

+		if (lpCtx->bFrameStarted) {

+			if (GetUpdateRect(hwnd, &rect, FALSE)) {

+				BeginPaint(hwnd, &ps);

+				EndPaint(hwnd, &ps);

+				ValidateRect(hwnd, &rect);

+				return TRUE;

+				}

+			}

+		break;

+	}

+	// Call the appropriate window message handler

+	rc = CallWindowProc((WNDPROC)lpfnWndProc, hwnd, msg, wParam, lParam);

+

+    // Intercept messages and process *after* passing on to window

+	switch (msg) {

+    case WM_QUIT:

+	case WM_DESTROY:

+        bQuit = TRUE;

+		if (lpCtx && lpCtx->bAllocated) {

+			ddlogPrintf(DDLOG_WARN, "WM_DESTROY detected for HWND=%X, HDC=%X, HGLRC=%d", hwnd, lpCtx->hDC, i+1);

+			dglDeleteContext((HGLRC)(i+1));

+		}

+		break;

+#if 0

+	case WM_SIZE:

+		// Resize surfaces to fit window but not viewport (in case app did not bother)

+        if (!lpCtx || !lpCtx->bHasBeenCurrent)

+            break;

+		w = LOWORD(lParam);

+		h = HIWORD(lParam);

+		if (lpCtx->dwWidth < w || lpCtx->dwHeight < h) {

+			if (!dglWglResizeBuffers(lpCtx->glCtx, TRUE))

+                 dglWglResizeBuffers(lpCtx->glCtx, FALSE);

+        }

+		break;

+#endif

+    }

+

+    // If the main window is quitting, then so should we...

+    if (bMain && bQuit) {

+		ddlogPrintf(DDLOG_SYSTEM, "shutting down after WM_DESTROY detected for main HWND=%X", hwnd);

+        dglDeleteContextState();

+        dglExitDriver();

+    }

+

+    return rc;

+}

+

+// ***********************************************************************

+

+// Driver Window message handler

+static LONG __stdcall GLD_EventWndProc(

+	HWND hwnd,

+	UINT msg,

+	WPARAM wParam,

+	LPARAM lParam)

+{

+	switch (msg) {

+        // May be sent by splash screen dialog on exit

+        case WM_ACTIVATE:

+            if (LOWORD(wParam) == WA_ACTIVE && glb.hWndActive) {

+                SetForegroundWindow(glb.hWndActive);

+                return 0;

+                }

+            break;

+	}

+	return DefWindowProc(hwnd, msg, wParam, lParam);

+}

+

+// ***********************************************************************

+

+// Intercepted Keyboard handler for detecting hot keys.

+LRESULT CALLBACK dglKeyProc(

+	int code,

+	WPARAM wParam,

+	LPARAM lParam)

+{

+	HWND hWnd, hWndFrame;

+	HGLRC hGLRC = NULL;

+	DGL_ctx* lpCtx = NULL;

+	int cmd = 0, dx1 = 0, dx2 = 0, i;

+	static BOOL bAltPressed = FALSE;

+	static BOOL bCtrlPressed = FALSE;

+	static BOOL bShiftPressed = FALSE;

+    RECT r, rf, rc;

+    POINT pt;

+    BOOL bForceReshape = FALSE;

+

+	return CallNextHookEx(hKeyHook, code, wParam, lParam);

+}

+

+// ***********************************************************************

+

+HWND hWndMatch;

+

+// Window handle enumeration procedure.

+BOOL CALLBACK dglEnumChildProc(

+    HWND hWnd,

+    LPARAM lParam)

+{

+    RECT rect;

+

+    // Find window handle with matching client rect.

+    GetClientRect(hWnd, &rect);

+    if (EqualRect(&rect, (RECT*)lParam)) {

+        hWndMatch = hWnd;

+        return FALSE;

+        }

+    // Continue with next child window.

+    return TRUE;

+}

+

+// ***********************************************************************

+

+// Find window handle with matching client rect.

+HWND dglFindWindowRect(

+    RECT* pRect)

+{

+    hWndMatch = NULL;

+    EnumChildWindows(GetForegroundWindow(), dglEnumChildProc, (LPARAM)pRect);

+    return hWndMatch;

+}

+

+// ***********************************************************************

+#ifndef _USE_GLD3_WGL

+void dglChooseDisplayMode(

+	DGL_ctx *lpCtx)

+{

+	// Note: Choose an exact match if possible.

+

+	int				i;

+	DWORD			area;

+	DWORD			bestarea;

+	DDSURFACEDESC2	*lpDDSD		= NULL;	// Mode list pointer

+	DDSURFACEDESC2	*lpBestDDSD = NULL;	// Pointer to best

+

+	lpDDSD = glb.lpDisplayModes;

+	for (i=0; i<glb.nDisplayModeCount; i++, lpDDSD++) {

+		if ((lpDDSD->dwWidth == lpCtx->dwWidth) &&

+			(lpDDSD->dwHeight == lpCtx->dwHeight))

+			goto matched; // Mode has been exactly matched

+		// Choose modes that are larger in both dimensions than

+		// the window, but smaller in area than the current best.

+		if ( (lpDDSD->dwWidth >= lpCtx->dwWidth) &&

+			 (lpDDSD->dwHeight >= lpCtx->dwHeight))

+		{

+			if (lpBestDDSD == NULL) {

+				lpBestDDSD = lpDDSD;

+				bestarea = lpDDSD->dwWidth * lpDDSD->dwHeight;

+				continue;

+			}

+			area = lpDDSD->dwWidth * lpDDSD->dwHeight;

+			if (area < bestarea) {

+				lpBestDDSD = lpDDSD;

+				bestarea = area;

+			}

+		}

+	}

+

+	// Safety check

+	if (lpBestDDSD == NULL) {

+		ddlogMessage(DDLOG_CRITICAL, "dglChooseDisplayMode");

+		return;

+	}

+

+	lpCtx->dwModeWidth = lpBestDDSD->dwWidth;

+	lpCtx->dwModeHeight = lpBestDDSD->dwHeight;

+matched:

+	ddlogPrintf(DDLOG_INFO, "Matched (%ldx%ld) to (%ldx%ld)",

+		lpCtx->dwWidth, lpCtx->dwHeight, lpCtx->dwModeWidth, lpCtx->dwModeHeight);

+}

+#endif // _USE_GLD3_WGL

+// ***********************************************************************

+

+static BOOL IsDevice(

+	DWORD *lpDeviceIdList,

+	DWORD dwDeviceId,

+	int count)

+{

+	int i;

+

+	for (i=0; i<count; i++)

+		if (dwDeviceId == lpDeviceIdList[i])

+			return TRUE;

+

+	return FALSE;

+}

+

+// ***********************************************************************

+

+void dglTestForBrokenCards(

+	DGL_ctx *lpCtx)

+{

+#ifndef _GLD3

+	DDDEVICEIDENTIFIER	dddi; // DX6 device identifier

+

+	// Sanity check.

+	if (lpCtx == NULL) {

+		// Testing for broken cards is sensitive area, so we don't want

+		// anything saying "broken cards" in the error message. ;)

+		ddlogMessage(DDLOG_ERROR, "Null context passed to TFBC\n");

+		return;

+	}

+

+	if (lpCtx->lpDD4 == NULL) {

+		// Testing for broken cards is sensitive area, so we don't want

+		// anything saying "broken cards" in the error message. ;)

+		ddlogMessage(DDLOG_ERROR, "Null DD4 passed to TFBC\n");

+		return;

+	}

+

+	// Microsoft really fucked up with the GetDeviceIdentifier function

+	// on Windows 2000, since it locks up on stock driers on the CD. Updated

+	// drivers from vendors appear to work, but we can't identify the drivers

+	// without this function!!! For now we skip these tests on Windows 2000.

+	if ((GetVersion() & 0x80000000UL) == 0)

+		return;

+

+	// Obtain device info

+	if (FAILED(IDirectDraw4_GetDeviceIdentifier(lpCtx->lpDD4, &dddi, 0)))

+		return;

+

+	// Useful info. Log it.

+	ddlogPrintf(DDLOG_INFO, "DirectDraw: VendorId=0x%x, DeviceId=0x%x", dddi.dwVendorId, dddi.dwDeviceId);

+

+	// Vendor 1: ATI

+	if (dddi.dwVendorId == VENDORID_ATI) {

+		// Test A: ATI Rage PRO

+		if (IsDevice(devATIRagePro, dddi.dwDeviceId, sizeof(devATIRagePro)))

+			glb.bUseMipmaps = FALSE;

+		// Test B: ATI Rage II+

+		if (IsDevice(devATIRageIIplus, dddi.dwDeviceId, sizeof(devATIRageIIplus)))

+			glb.bEmulateAlphaTest = TRUE;

+	}

+

+	// Vendor 2: Matrox

+	if (dddi.dwVendorId == 0x102B) {

+		// Test: Matrox G400 stencil buffer support does not work for AutoCAD

+		if (dddi.dwDeviceId == 0x0525) {

+			lpCtx->lpPF->pfd.cStencilBits = 0;

+			if (lpCtx->lpPF->iZBufferPF != -1) {

+				glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitDepth = 0;

+				glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitMask = 0;

+				glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags &= ~DDPF_STENCILBUFFER;

+			}

+		}

+	}

+#endif // _GLD3

+}

+

+// ***********************************************************************

+

+BOOL dglCreateContextBuffers(

+	HDC a,

+	DGL_ctx *lpCtx,

+	BOOL bFallback)

+{

+	HRESULT				hResult;

+

+	int					i;

+//	HGLRC				hGLRC;

+//	DGL_ctx*			lpCtx;

+

+#ifndef _USE_GLD3_WGL

+	DWORD				dwFlags;

+	DDSURFACEDESC2		ddsd2;

+	DDSCAPS2			ddscaps2;

+	LPDIRECTDRAWCLIPPER	lpddClipper;

+	D3DDEVICEDESC		D3DHWDevDesc;	// Direct3D Hardware description

+	D3DDEVICEDESC		D3DHELDevDesc;	// Direct3D Hardware Emulation Layer

+#endif // _USE_GLD3_WGL

+

+	float				inv_aspect;

+

+	GLenum				bDoubleBuffer;	// TRUE if double buffer required

+	GLenum				bDepthBuffer;	// TRUE if depth buffer required

+

+	const PIXELFORMATDESCRIPTOR	*lpPFD = &lpCtx->lpPF->pfd;

+

+	// Vars for Mesa visual

+	DWORD				dwDepthBits		= 0;

+	DWORD				dwStencilBits	= 0;

+	DWORD				dwAlphaBits		= 0;

+	DWORD				bAlphaSW		= GL_FALSE;

+	DWORD				bDouble			= GL_FALSE;

+

+	DDSURFACEDESC2 		ddsd2DisplayMode;

+	BOOL				bFullScrnWin	= FALSE;	// fullscreen-size window ?

+	DDBLTFX 			ddbltfx;

+	DWORD				dwMemoryType 	= (bFallback) ? DDSCAPS_SYSTEMMEMORY : glb.dwMemoryType;

+	BOOL				bBogusWindow	= FALSE;	// non-drawable window ?

+	DWORD               dwColorRef      = 0;        // GDI background color

+	RECT				rcDst;						// GDI window rect

+	POINT				pt;							// GDI window point

+

+	// Palette used for creating default global palette

+	PALETTEENTRY	ppe[256];

+

+#ifndef _USE_GLD3_WGL

+	// Vertex buffer description. Used for creation of vertex buffers

+	D3DVERTEXBUFFERDESC vbufdesc;

+#endif // _USE_GLD3_WGL

+

+#define DDLOG_CRITICAL_OR_WARN	(bFallback ? DDLOG_CRITICAL : DDLOG_WARN)

+

+	ddlogPrintf(DDLOG_SYSTEM, "dglCreateContextBuffers for HDC=%X", a);

+    nContextError = GLDERR_NONE;

+

+#ifdef GLD_THREADS

+	// Serialize access to DirectDraw object creation or DDS start

+	if (glb.bMultiThreaded)

+		EnterCriticalSection(&CriticalSection);

+#endif

+

+	// Check for back buffer

+	bDoubleBuffer = GL_TRUE; //(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE;

+	// Since we always do back buffering, check if we emulate front buffering

+	lpCtx->EmulateSingle =

+		(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;

+#if 0	// Don't have to mimic MS OpenGL behavior for front-buffering (DaveM)

+	lpCtx->EmulateSingle |=

+		(lpPFD->dwFlags & PFD_SUPPORT_GDI) ? TRUE : FALSE;

+#endif

+

+	// Check for depth buffer

+	bDepthBuffer = (lpPFD->cDepthBits) ? GL_TRUE : GL_FALSE;

+

+	lpCtx->bDoubleBuffer = bDoubleBuffer;

+	lpCtx->bDepthBuffer = bDepthBuffer;

+

+	// Set the Fullscreen flag for the context.

+//	lpCtx->bFullscreen = glb.bFullscreen;

+

+	// Obtain the dimensions of the rendering window

+	lpCtx->hDC = a; // Cache DC

+	lpCtx->hWnd = WindowFromDC(lpCtx->hDC);

+	// Check for non-window DC = memory DC ?

+	if (lpCtx->hWnd == NULL) {

+        // bitmap memory contexts are always single-buffered

+        lpCtx->EmulateSingle = TRUE;

+		bBogusWindow = TRUE;

+		ddlogPrintf(DDLOG_INFO, "Non-Window Memory Device Context");

+		if (GetClipBox(lpCtx->hDC, &lpCtx->rcScreenRect) == ERROR) {

+			ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglCreateContext\n");

+			SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);

+		}

+	}

+	else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {

+		bBogusWindow = TRUE;

+		ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglCreateContext\n");

+		SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);

+	}

+	lpCtx->dwWidth = lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left;

+	lpCtx->dwHeight = lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top;

+

+	ddlogPrintf(DDLOG_INFO, "Input window %X: w=%i, h=%i",

+							lpCtx->hWnd, lpCtx->dwWidth, lpCtx->dwHeight);

+

+	// What if app only zeroes one dimension instead of both? (DaveM)

+	if ( (lpCtx->dwWidth == 0) || (lpCtx->dwHeight == 0) ) {

+		// Make the buffer size something sensible

+		lpCtx->dwWidth = 8;

+		lpCtx->dwHeight = 8;

+	}

+

+	// Set defaults

+	lpCtx->dwModeWidth = lpCtx->dwWidth;

+	lpCtx->dwModeHeight = lpCtx->dwHeight;

+/*

+	// Find best display mode for fullscreen

+	if (glb.bFullscreen || !glb.bPrimary) {

+		dglChooseDisplayMode(lpCtx);

+	}

+*/

+	// Misc initialisation

+	lpCtx->bCanRender = FALSE; // No rendering allowed yet

+	lpCtx->bSceneStarted = FALSE;

+	lpCtx->bFrameStarted = FALSE;

+

+	// Detect OS (specifically 'Windows 2000' or 'Windows XP')

+	DetectOS();

+

+	// NOTE: WinNT not supported

+	ddlogPrintf(DDLOG_INFO, "OS: %s", bHaveWin95 ? "Win9x" : (bHaveWin2K ? "Win2000/XP" : "Unsupported") );

+

+	// Test for Fullscreen

+	if (bHaveWin95) { // Problems with fullscreen on Win2K/XP

+		if ((GetSystemMetrics(SM_CXSCREEN) == lpCtx->dwWidth) && 

+			(GetSystemMetrics(SM_CYSCREEN) == lpCtx->dwHeight))

+		{

+			// Workaround for some apps that crash when going fullscreen.

+			//lpCtx->bFullscreen = TRUE;

+		}

+		

+	}

+

+#ifdef _USE_GLD3_WGL

+	_gldDriver.CreateDrawable(lpCtx, glb.bDirectDrawPersistant, glb.bPersistantBuffers);

+#else

+	// Check if DirectDraw has already been created by original GLRC (DaveM)

+	if (glb.bDirectDrawPersistant && glb.bDirectDraw) {

+		lpCtx->lpDD4 = glb.lpDD4;

+		IDirectDraw4_AddRef(lpCtx->lpDD4);

+		goto SkipDirectDrawCreate;

+	}

+

+	// Create DirectDraw object

+	if (glb.bPrimary)

+		hResult = DirectDrawCreate(NULL, &lpCtx->lpDD1, NULL);

+	else {

+		// A non-primary device is to be used.

+		// Force context to be Fullscreen, secondary adaptors can not

+		// be used in a window.

+		hResult = DirectDrawCreate(&glb.ddGuid, &lpCtx->lpDD1, NULL);

+		lpCtx->bFullscreen = TRUE;

+	}

+	if (FAILED(hResult)) {

+		MessageBox(NULL, "Unable to initialize DirectDraw", "GLDirect", MB_OK);

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw interface", hResult);

+        nContextError = GLDERR_DDRAW;

+		goto return_with_error;

+	}

+

+	// Query for DX6 IDirectDraw4.

+	hResult = IDirectDraw_QueryInterface(lpCtx->lpDD1,

+										 &IID_IDirectDraw4,

+										 (void**)&lpCtx->lpDD4);

+	if (FAILED(hResult)) {

+		MessageBox(NULL, "GLDirect requires DirectX 6.0 or above", "GLDirect", MB_OK);

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw4 interface", hResult);

+        nContextError = GLDERR_DDRAW;

+		goto return_with_error;

+	}

+

+	// Cache DirectDraw interface for subsequent GLRCs

+	if (glb.bDirectDrawPersistant && !glb.bDirectDraw) {

+		glb.lpDD4 = lpCtx->lpDD4;

+		IDirectDraw4_AddRef(glb.lpDD4);

+		glb.bDirectDraw = TRUE;

+	}

+SkipDirectDrawCreate:

+

+	// Now we have a DD4 interface we can check for broken cards

+	dglTestForBrokenCards(lpCtx);

+

+	// Test if primary device can use flipping instead of blitting

+	ZeroMemory(&ddsd2DisplayMode, sizeof(ddsd2DisplayMode));

+	ddsd2DisplayMode.dwSize = sizeof(ddsd2DisplayMode);

+	hResult = IDirectDraw4_GetDisplayMode(

+					lpCtx->lpDD4,

+					&ddsd2DisplayMode);

+	if (SUCCEEDED(hResult)) {

+		if ( (lpCtx->dwWidth == ddsd2DisplayMode.dwWidth) &&

+				 (lpCtx->dwHeight == ddsd2DisplayMode.dwHeight) ) {

+			// We have a fullscreen-size window

+			bFullScrnWin = TRUE;

+			// OK to use DirectDraw fullscreen mode ?

+			if (glb.bPrimary && !glb.bFullscreenBlit && !lpCtx->EmulateSingle && !glb.bDirectDrawPersistant) {

+				lpCtx->bFullscreen = TRUE;

+				ddlogMessage(DDLOG_INFO, "Primary upgraded to page flipping.\n");

+			}

+		}

+		// Cache the display mode dimensions

+		lpCtx->dwModeWidth = ddsd2DisplayMode.dwWidth;

+		lpCtx->dwModeHeight = ddsd2DisplayMode.dwHeight;

+	}

+

+	// Clamp the effective window dimensions to primary surface.

+	// We need to do this for D3D viewport dimensions even if wide

+	// surfaces are supported. This also is a good idea for handling

+	// whacked-out window dimensions passed for non-drawable windows

+	// like Solid Edge. (DaveM)

+	if (lpCtx->dwWidth > ddsd2DisplayMode.dwWidth)

+		lpCtx->dwWidth = ddsd2DisplayMode.dwWidth;

+	if (lpCtx->dwHeight > ddsd2DisplayMode.dwHeight)

+		lpCtx->dwHeight = ddsd2DisplayMode.dwHeight;

+

+	// Check for non-RGB desktop resolution

+	if (!lpCtx->bFullscreen && ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount <= 8) {

+		ddlogPrintf(DDLOG_CRITICAL_OR_WARN, "Desktop color depth %d bpp not supported",

+			ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount);

+        nContextError = GLDERR_BPP;

+		goto return_with_error;

+	}

+#endif // _USE_GLD3_WGL

+

+	ddlogPrintf(DDLOG_INFO, "Window: w=%i, h=%i (%s)",

+							lpCtx->dwWidth,

+							lpCtx->dwHeight,

+							lpCtx->bFullscreen ? "fullscreen" : "windowed");

+

+#ifndef _USE_GLD3_WGL

+	// Obtain ddraw caps

+    ZeroMemory(&lpCtx->ddCaps, sizeof(DDCAPS));

+	lpCtx->ddCaps.dwSize = sizeof(DDCAPS);

+	if (glb.bHardware) {

+		// Get HAL caps

+		IDirectDraw4_GetCaps(lpCtx->lpDD4, &lpCtx->ddCaps, NULL);

+	} else {

+		// Get HEL caps

+		IDirectDraw4_GetCaps(lpCtx->lpDD4, NULL, &lpCtx->ddCaps);

+	}

+

+	// If this flag is present then we can't default to Mesa

+	// SW rendering between BeginScene() and EndScene().

+	if (lpCtx->ddCaps.dwCaps2 & DDCAPS2_NO2DDURING3DSCENE) {

+		ddlogMessage(DDLOG_INFO,

+			"Warning          : No 2D allowed during 3D scene.\n");

+	}

+

+	// Query for DX6 Direct3D3 interface

+	hResult = IDirectDraw4_QueryInterface(lpCtx->lpDD4,

+										  &IID_IDirect3D3,

+										  (void**)&lpCtx->lpD3D3);

+	if (FAILED(hResult)) {

+		MessageBox(NULL, "Unable to initialize Direct3D", "GLDirect", MB_OK);

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D interface", hResult);

+        nContextError = GLDERR_D3D;

+		goto return_with_error;

+	}

+

+	// Context creation

+	if (lpCtx->bFullscreen) {

+		// FULLSCREEN

+

+        // Disable warning popups when in fullscreen mode

+        ddlogWarnOption(FALSE);

+

+		// Have to release persistant primary surface if fullscreen mode

+		if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {

+			RELEASE(glb.lpPrimary4);

+			glb.bDirectDrawPrimary = FALSE;

+		}

+

+		dwFlags = DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_ALLOWREBOOT;

+		if (glb.bFastFPU)

+			dwFlags |= DDSCL_FPUSETUP;	// fast FPU setup optional (DaveM)

+		hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, lpCtx->hWnd, dwFlags);

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Exclusive Fullscreen mode", hResult);

+			goto return_with_error;

+		}

+

+		hResult = IDirectDraw4_SetDisplayMode(lpCtx->lpDD4,

+											  lpCtx->dwModeWidth,

+											  lpCtx->dwModeHeight,

+											  lpPFD->cColorBits,

+											  0,

+											  0);

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "SetDisplayMode failed", hResult);

+			goto return_with_error;

+		}

+

+		// ** The display mode has changed, so dont use MessageBox! **

+

+		ZeroMemory(&ddsd2, sizeof(ddsd2));

+		ddsd2.dwSize = sizeof(ddsd2);

+

+		if (bDoubleBuffer) {

+			// Double buffered

+			// Primary surface

+			ddsd2.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;

+			ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |

+								   DDSCAPS_FLIP |

+								   DDSCAPS_COMPLEX |

+								   DDSCAPS_3DDEVICE |

+								   dwMemoryType;

+			ddsd2.dwBackBufferCount = 1;

+

+			hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);

+			if (FAILED(hResult)) {

+				ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);

+                nContextError = GLDERR_MEM;

+				goto return_with_error;

+			}

+

+			// Render target surface

+			ZeroMemory(&ddscaps2, sizeof(ddscaps2)); // Clear the entire struct.

+			ddscaps2.dwCaps = DDSCAPS_BACKBUFFER;

+			hResult = IDirectDrawSurface4_GetAttachedSurface(lpCtx->lpFront4, &ddscaps2, &lpCtx->lpBack4);

+			if (FAILED(hResult)) {

+				ddlogError(DDLOG_CRITICAL_OR_WARN, "GetAttachedSurface failed", hResult);

+                nContextError = GLDERR_MEM;

+				goto return_with_error;

+			}

+		} else {

+			// Single buffered

+			// Primary surface

+			ddsd2.dwFlags = DDSD_CAPS;

+			ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |

+								   //DDSCAPS_3DDEVICE |

+								   dwMemoryType;

+

+			hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);

+			if (FAILED(hResult)) {

+				ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);

+                nContextError = GLDERR_MEM;

+				goto return_with_error;

+			}

+

+			lpCtx->lpBack4 = NULL;

+		}

+	} else {

+		// WINDOWED

+

+        // OK to enable warning popups in windowed mode

+        ddlogWarnOption(glb.bMessageBoxWarnings);

+

+		dwFlags = DDSCL_NORMAL;

+		if (glb.bMultiThreaded)

+			dwFlags |= DDSCL_MULTITHREADED;

+		if (glb.bFastFPU)

+			dwFlags |= DDSCL_FPUSETUP;	// fast FPU setup optional (DaveM)

+		hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4,

+												  lpCtx->hWnd,

+												  dwFlags);

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Normal coop level", hResult);

+			goto return_with_error;

+		}

+		// Has Primary surface already been created for original GLRC ?

+		// Note this can only be applicable for windowed modes

+		if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {

+			lpCtx->lpFront4 = glb.lpPrimary4;

+			IDirectDrawSurface4_AddRef(lpCtx->lpFront4);

+			// Update the window on the default clipper

+			IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);

+			IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);

+			IDirectDrawClipper_Release(lpddClipper);

+			goto SkipPrimaryCreate;

+		}

+

+		// Primary surface

+		ZeroMemory(&ddsd2, sizeof(ddsd2));

+		ddsd2.dwSize = sizeof(ddsd2);

+		ddsd2.dwFlags = DDSD_CAPS;

+		ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

+		hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);

+            nContextError = GLDERR_MEM;

+			goto return_with_error;

+		}

+

+		// Cache Primary surface for subsequent GLRCs

+		// Note this can only be applicable to subsequent windowed modes

+		if (glb.bDirectDrawPersistant && !glb.bDirectDrawPrimary) {

+			glb.lpPrimary4 = lpCtx->lpFront4;

+			IDirectDrawSurface4_AddRef(glb.lpPrimary4);

+			glb.bDirectDrawPrimary = TRUE;

+		}

+

+		// Clipper object

+		hResult = DirectDrawCreateClipper(0, &lpddClipper, NULL);

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateClipper failed", hResult);

+			goto return_with_error;

+		}

+		hResult = IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);

+		if (FAILED(hResult)) {

+			RELEASE(lpddClipper);

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "SetHWnd failed", hResult);

+			goto return_with_error;

+		}

+		hResult = IDirectDrawSurface4_SetClipper(lpCtx->lpFront4, lpddClipper);

+		RELEASE(lpddClipper); // We have finished with it.

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "SetClipper failed", hResult);

+			goto return_with_error;

+		}

+SkipPrimaryCreate:

+

+		if (bDoubleBuffer) {

+			// Render target surface

+			ZeroMemory(&ddsd2, sizeof(ddsd2));

+			ddsd2.dwSize = sizeof(ddsd2);

+			ddsd2.dwFlags        = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;

+			ddsd2.dwWidth        = lpCtx->dwWidth;

+			ddsd2.dwHeight       = lpCtx->dwHeight;

+			ddsd2.ddsCaps.dwCaps = DDSCAPS_3DDEVICE |

+								   DDSCAPS_OFFSCREENPLAIN |

+								   dwMemoryType;

+

+			// Reserve the entire desktop size for persistant buffers option

+			if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {

+				ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;

+				ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;

+			}

+			// Re-use original back buffer if persistant buffers exist

+			if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpBack4)

+				hResult = IDirectDrawSurface4_AddRef(lpCtx->lpBack4 = glb.lpBack4);

+			else

+				hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpBack4, NULL);

+			if (FAILED(hResult)) {

+				ddlogError(DDLOG_CRITICAL_OR_WARN, "Create Backbuffer failed", hResult);

+                nContextError = GLDERR_MEM;

+				goto return_with_error;

+			}

+			if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpBack4)

+				IDirectDrawSurface4_AddRef(glb.lpBack4 = lpCtx->lpBack4);

+		} else {

+			lpCtx->lpBack4 = NULL;

+		}

+	}

+

+	//

+	// Now create the Z-buffer

+	//

+	lpCtx->bStencil = FALSE; // Default to no stencil buffer

+	if (bDepthBuffer && (lpCtx->lpPF->iZBufferPF != -1)) {

+		// Get z-buffer dimensions from the render target

+		// Setup the surface desc for the z-buffer.

+		ZeroMemory(&ddsd2, sizeof(ddsd2));

+		ddsd2.dwSize = sizeof(ddsd2);

+		ddsd2.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;

+		ddsd2.ddsCaps.dwCaps = DDSCAPS_ZBUFFER | dwMemoryType;

+		ddsd2.dwWidth = lpCtx->dwWidth;

+		ddsd2.dwHeight = lpCtx->dwHeight;

+		memcpy(&ddsd2.ddpfPixelFormat,

+			&glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF],

+			sizeof(DDPIXELFORMAT) );

+

+		// Reserve the entire desktop size for persistant buffers option

+		if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {

+			ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;

+			ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;

+		}

+

+		// Create a z-buffer

+		if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4)

+			hResult = IDirectDrawSurface4_AddRef(lpCtx->lpDepth4 = glb.lpDepth4);

+		else

+			hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpDepth4, NULL);

+		if (FAILED(hResult)) {

+			ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (ZBuffer) failed", hResult);

+            nContextError = GLDERR_MEM;

+			goto return_with_error;

+		}

+		if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpDepth4)

+			IDirectDrawSurface4_AddRef(glb.lpDepth4 = lpCtx->lpDepth4);

+		else if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4 && glb.lpBack4)

+			IDirectDrawSurface4_DeleteAttachedSurface(glb.lpBack4, 0, glb.lpDepth4);

+

+		// Attach Zbuffer to render target

+		TRY(IDirectDrawSurface4_AddAttachedSurface(

+			bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,

+			lpCtx->lpDepth4),

+			"dglCreateContext: Attach Zbuffer");

+		if (glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags & DDPF_STENCILBUFFER) {

+			lpCtx->bStencil = TRUE;

+			ddlogMessage(DDLOG_INFO, "Depth buffer has stencil\n");

+		}

+	}

+

+	// Clear all back buffers and Z-buffers in case of memory recycling.

+	ZeroMemory(&ddbltfx, sizeof(ddbltfx));

+	ddbltfx.dwSize = sizeof(ddbltfx);

+	IDirectDrawSurface4_Blt(lpCtx->lpBack4, NULL, NULL, NULL,

+		DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);

+	if (lpCtx->lpDepth4)

+		IDirectDrawSurface4_Blt(lpCtx->lpDepth4, NULL, NULL, NULL,

+			DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);

+

+	// Now that we have a Z-buffer we can create the 3D device

+	hResult = IDirect3D3_CreateDevice(lpCtx->lpD3D3,

+									  &glb.d3dGuid,

+									  bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,

+									  &lpCtx->lpDev3,

+									  NULL);

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D device", hResult);

+        nContextError = GLDERR_D3D;

+		goto return_with_error;

+	}

+

+	// We must do this as soon as the device is created

+	dglInitStateCaches(lpCtx);

+

+	// Obtain the D3D Device Description

+	D3DHWDevDesc.dwSize = D3DHELDevDesc.dwSize = sizeof(D3DDEVICEDESC);

+	TRY(IDirect3DDevice3_GetCaps(lpCtx->lpDev3,

+								 &D3DHWDevDesc,

+								 &D3DHELDevDesc),

+								 "dglCreateContext: GetCaps failed");

+

+	// Choose the relevant description and cache it in the context.

+	// We will use this description later for caps checking

+	memcpy(	&lpCtx->D3DDevDesc,

+			glb.bHardware ? &D3DHWDevDesc : &D3DHELDevDesc,

+			sizeof(D3DDEVICEDESC));

+

+	// Now we can examine the texture formats

+	if (!dglBuildTextureFormatList(lpCtx->lpDev3)) {

+		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "dglBuildTextureFormatList failed\n");

+		goto return_with_error;

+	}

+

+	// Get the pixel format of the back buffer

+	lpCtx->ddpfRender.dwSize = sizeof(lpCtx->ddpfRender);

+	if (bDoubleBuffer)

+		hResult = IDirectDrawSurface4_GetPixelFormat(

+					lpCtx->lpBack4,

+					&lpCtx->ddpfRender);

+	else

+		hResult = IDirectDrawSurface4_GetPixelFormat(

+					lpCtx->lpFront4,

+					&lpCtx->ddpfRender);

+

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "GetPixelFormat failed", hResult);

+		goto return_with_error;

+	}

+	// Find a pixel packing function suitable for this surface

+	pxClassifyPixelFormat(&lpCtx->ddpfRender,

+						  &lpCtx->fnPackFunc,

+						  &lpCtx->fnUnpackFunc,

+						  &lpCtx->fnPackSpanFunc);

+

+	// Viewport

+	hResult = IDirect3D3_CreateViewport(lpCtx->lpD3D3, &lpCtx->lpViewport3, NULL);

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateViewport failed", hResult);

+		goto return_with_error;

+	}

+

+	hResult = IDirect3DDevice3_AddViewport(lpCtx->lpDev3, lpCtx->lpViewport3);

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "AddViewport failed", hResult);

+		goto return_with_error;

+	}

+

+	// Initialise the viewport

+	// Note screen coordinates are used for viewport clipping since D3D

+	// transform operations are not used in the GLD CAD driver. (DaveM)

+	inv_aspect = (float)lpCtx->dwHeight/(float)lpCtx->dwWidth;

+

+	lpCtx->d3dViewport.dwSize = sizeof(lpCtx->d3dViewport);

+	lpCtx->d3dViewport.dwX = 0;

+	lpCtx->d3dViewport.dwY = 0;

+	lpCtx->d3dViewport.dwWidth = lpCtx->dwWidth;

+	lpCtx->d3dViewport.dwHeight = lpCtx->dwHeight;

+	lpCtx->d3dViewport.dvClipX = 0; // -1.0f;

+	lpCtx->d3dViewport.dvClipY = 0; // inv_aspect;

+	lpCtx->d3dViewport.dvClipWidth = lpCtx->dwWidth; // 2.0f;

+	lpCtx->d3dViewport.dvClipHeight = lpCtx->dwHeight; // 2.0f * inv_aspect;

+	lpCtx->d3dViewport.dvMinZ = 0.0f;

+	lpCtx->d3dViewport.dvMaxZ = 1.0f;

+	TRY(IDirect3DViewport3_SetViewport2(lpCtx->lpViewport3, &lpCtx->d3dViewport), "dglCreateContext: SetViewport2");

+

+	hResult = IDirect3DDevice3_SetCurrentViewport(lpCtx->lpDev3, lpCtx->lpViewport3);

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "SetCurrentViewport failed", hResult);

+		goto return_with_error;

+	}

+

+	lpCtx->dwBPP = lpPFD->cColorBits;

+	lpCtx->iZBufferPF = lpCtx->lpPF->iZBufferPF;

+

+	// Set last texture to NULL

+	for (i=0; i<MAX_TEXTURE_UNITS; i++) {

+		lpCtx->ColorOp[i] = D3DTOP_DISABLE;

+		lpCtx->AlphaOp[i] = D3DTOP_DISABLE;

+		lpCtx->tObj[i] = NULL;

+	}

+

+	// Default to perspective correct texture mapping

+	dglSetRenderState(lpCtx, D3DRENDERSTATE_TEXTUREPERSPECTIVE, TRUE, "TexturePersp");

+

+	// Set the default culling mode

+	lpCtx->cullmode = D3DCULL_NONE;

+	dglSetRenderState(lpCtx, D3DRENDERSTATE_CULLMODE, D3DCULL_NONE, "CullMode");

+

+	// Disable specular

+	dglSetRenderState(lpCtx, D3DRENDERSTATE_SPECULARENABLE, FALSE, "SpecularEnable");

+	// Disable subpixel correction

+//	dglSetRenderState(lpCtx, D3DRENDERSTATE_SUBPIXEL, FALSE, "SubpixelEnable");

+	// Disable dithering

+	dglSetRenderState(lpCtx, D3DRENDERSTATE_DITHERENABLE, FALSE, "DitherEnable");

+

+	// Initialise the primitive caches

+//	lpCtx->dwNextLineVert	= 0;

+//	lpCtx->dwNextTriVert	= 0;

+

+	// Init the global texture palette

+	lpCtx->lpGlobalPalette = NULL;

+

+	// Init the HW/SW usage counters

+//	lpCtx->dwHWUsageCount = lpCtx->dwSWUsageCount = 0L;

+

+	//

+	// Create two D3D vertex buffers.

+	// One will hold the pre-transformed data with the other one

+	// being used to hold the post-transformed & clipped verts.

+	//

+#if 0  // never used (DaveM)

+	vbufdesc.dwSize = sizeof(D3DVERTEXBUFFERDESC);

+	vbufdesc.dwCaps = D3DVBCAPS_WRITEONLY;

+	if (glb.bHardware == FALSE)

+		vbufdesc.dwCaps = D3DVBCAPS_SYSTEMMEMORY;

+	vbufdesc.dwNumVertices = 32768; // For the time being

+

+	// Source vertex buffer

+	vbufdesc.dwFVF = DGL_LVERTEX;

+	hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_vbuf, 0, NULL);

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(src) failed", hResult);

+		goto return_with_error;

+	}

+

+	// Destination vertex buffer

+	vbufdesc.dwFVF = (glb.bMultitexture == FALSE) ? D3DFVF_TLVERTEX : (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX2);

+	hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_pvbuf, 0, NULL);

+	if(FAILED(hResult)) {

+		ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(dst) failed", hResult);

+		goto return_with_error;

+	}

+#endif

+

+#endif _USE_GLD3_WGL

+

+	//

+	//	Now create the Mesa context

+	//

+

+	// Create the Mesa visual

+	if (lpPFD->cDepthBits)

+		dwDepthBits = 16;

+	if (lpPFD->cStencilBits)

+		dwStencilBits = 8;

+	if (lpPFD->cAlphaBits) {

+		dwAlphaBits = 8;

+		bAlphaSW = GL_TRUE;

+	}

+	if (lpPFD->dwFlags & PFD_DOUBLEBUFFER)

+		bDouble = GL_TRUE;

+//	lpCtx->EmulateSingle =

+//		(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;

+

+#ifdef _USE_GLD3_WGL

+	lpCtx->glVis = _mesa_create_visual(

+		bDouble,    /* double buffer */

+		GL_FALSE,			// stereo

+		lpPFD->cRedBits,

+		lpPFD->cGreenBits,

+		lpPFD->cBlueBits,

+		dwAlphaBits,

+		dwDepthBits,

+		dwStencilBits,

+		lpPFD->cAccumRedBits,	// accum bits

+		lpPFD->cAccumGreenBits,	// accum bits

+		lpPFD->cAccumBlueBits,	// accum bits

+		lpPFD->cAccumAlphaBits,	// accum alpha bits

+		1				// num samples

+		);

+#else // _USE_GLD3_WGL

+	lpCtx->glVis = (*mesaFuncs.gl_create_visual)(

+		GL_TRUE,			// RGB mode

+		bAlphaSW,			// Is an alpha buffer required?

+		bDouble,			// Is an double-buffering required?

+		GL_FALSE,			// stereo

+		dwDepthBits,		// depth_size

+		dwStencilBits,		// stencil_size

+		lpPFD->cAccumBits,	// accum_size

+		0,					// colour-index bits

+		lpPFD->cRedBits,	// Red bit count

+		lpPFD->cGreenBits,	// Green bit count

+		lpPFD->cBlueBits,	// Blue bit count

+		dwAlphaBits			// Alpha bit count

+		);

+#endif // _USE_GLD3_WGL

+

+	if (lpCtx->glVis == NULL) {

+		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_visual failed\n");

+		goto return_with_error;

+	}

+

+#ifdef _USE_GLD3_WGL

+	lpCtx->glCtx = _mesa_create_context(API_OPENGL, lpCtx->glVis, NULL, (void *)lpCtx, GL_TRUE);

+#else

+	// Create the Mesa context

+	lpCtx->glCtx = (*mesaFuncs.gl_create_context)(

+					lpCtx->glVis,	// Mesa visual

+					NULL,			// share list context

+					(void *)lpCtx,	// Pointer to our driver context

+					GL_TRUE			// Direct context flag

+				   );

+#endif // _USE_GLD3_WGL

+

+	if (lpCtx->glCtx == NULL) {

+		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_context failed\n");

+		goto return_with_error;

+	}

+

+	// Create the Mesa framebuffer

+#ifdef _USE_GLD3_WGL

+	lpCtx->glBuffer = _mesa_create_framebuffer(

+		lpCtx->glVis,

+		lpCtx->glVis->depthBits > 0,

+		lpCtx->glVis->stencilBits > 0,

+		lpCtx->glVis->accumRedBits > 0,

+		GL_FALSE //swalpha

+		);

+#else

+	lpCtx->glBuffer = (*mesaFuncs.gl_create_framebuffer)(lpCtx->glVis);

+#endif // _USE_GLD3_WGL

+

+	if (lpCtx->glBuffer == NULL) {

+		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_framebuffer failed\n");

+		goto return_with_error;

+	}

+

+#ifdef _USE_GLD3_WGL

+	// Init Mesa internals

+	_swrast_CreateContext( lpCtx->glCtx );

+	_vbo_CreateContext( lpCtx->glCtx );

+	_tnl_CreateContext( lpCtx->glCtx );

+	_swsetup_CreateContext( lpCtx->glCtx );

+

+	_gldDriver.InitialiseMesa(lpCtx);

+	

+	lpCtx->glCtx->imports.warning	= _gld_mesa_warning;

+	lpCtx->glCtx->imports.fatal		= _gld_mesa_fatal;

+

+#else

+	// Tell Mesa how many texture stages we have

+	glb.wMaxSimultaneousTextures = lpCtx->D3DDevDesc.wMaxSimultaneousTextures;

+	// Only use as many Units as the spec requires

+	if (glb.wMaxSimultaneousTextures > MAX_TEXTURE_UNITS)

+		glb.wMaxSimultaneousTextures = MAX_TEXTURE_UNITS;

+	lpCtx->glCtx->Const.MaxTextureUnits = glb.wMaxSimultaneousTextures;

+	ddlogPrintf(DDLOG_INFO, "Texture stages   : %d", glb.wMaxSimultaneousTextures);

+

+	// Set the max texture size.

+	// NOTE: clamped to a max of 1024 for extra performance!

+	lpCtx->dwMaxTextureSize = (lpCtx->D3DDevDesc.dwMaxTextureWidth <= 1024) ? lpCtx->D3DDevDesc.dwMaxTextureWidth : 1024;

+

+// Texture resize takes place elsewhere. KH

+// NOTE: This was added to workaround an issue with the Intel app.

+#if 0

+	lpCtx->glCtx->Const.MaxTextureSize = lpCtx->dwMaxTextureSize;

+#else

+	lpCtx->glCtx->Const.MaxTextureSize = 1024;

+#endif

+	lpCtx->glCtx->Const.MaxDrawBuffers = 1;

+

+	// Setup the Display Driver pointers

+	dglSetupDDPointers(lpCtx->glCtx);

+

+	// Initialise all the Direct3D renderstates

+	dglInitStateD3D(lpCtx->glCtx);

+

+#if 0

+	// Signal a reload of texture state on next glBegin

+	lpCtx->m_texHandleValid = FALSE;

+	lpCtx->m_mtex = FALSE;

+	lpCtx->m_texturing = FALSE;

+#else

+	// Set default texture unit state

+//	dglSetTexture(lpCtx, 0, NULL);

+//	dglSetTexture(lpCtx, 1, NULL);

+#endif

+

+	//

+	// Set the global texture palette to default values.

+	//

+

+	// Clear the entire palette

+	ZeroMemory(ppe, sizeof(PALETTEENTRY) * 256);

+

+	// Fill the palette with a default colour.

+	// A garish colour is used to catch bugs. Here Magenta is used.

+	for (i=0; i < 256; i++) {

+		ppe[i].peRed	= 255;

+		ppe[i].peGreen	= 0;

+		ppe[i].peBlue	= 255;

+	}

+

+	RELEASE(lpCtx->lpGlobalPalette);

+

+	if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpGlobalPalette)

+		hResult = IDirectDrawPalette_AddRef(lpCtx->lpGlobalPalette = glb.lpGlobalPalette);

+	else

+		hResult = IDirectDraw4_CreatePalette(

+				lpCtx->lpDD4,

+				DDPCAPS_INITIALIZE | DDPCAPS_8BIT | DDPCAPS_ALLOW256,

+				ppe,

+				&(lpCtx->lpGlobalPalette),

+				NULL);

+	if (FAILED(hResult)) {

+		ddlogError(DDLOG_ERROR, "Default CreatePalette failed\n", hResult);

+		lpCtx->lpGlobalPalette = NULL;

+		goto return_with_error;

+	}

+	if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpGlobalPalette)

+		IDirectDrawPalette_AddRef(glb.lpGlobalPalette = lpCtx->lpGlobalPalette);

+

+#endif // _USE_GLD3_WGL

+

+	// ** If we have made it to here then we can enable rendering **

+	lpCtx->bCanRender = TRUE;

+

+//	ddlogMessage(DDLOG_SYSTEM, "dglCreateContextBuffers succeded\n");

+

+#ifdef GLD_THREADS

+	// Release serialized access

+	if (glb.bMultiThreaded)

+		LeaveCriticalSection(&CriticalSection);

+#endif

+

+	return TRUE;

+

+return_with_error:

+	// Clean up before returning.

+	// This is critical for secondary devices.

+

+	lpCtx->bCanRender = FALSE;

+

+#ifdef _USE_GLD3_WGL

+	// Destroy the Mesa context

+	if (lpCtx->glBuffer)

+		_mesa_destroy_framebuffer(lpCtx->glBuffer);

+	if (lpCtx->glCtx)

+		_mesa_destroy_context(lpCtx->glCtx);

+	if (lpCtx->glVis)

+		_mesa_destroy_visual(lpCtx->glVis);

+

+	// Destroy driver data

+	_gldDriver.DestroyDrawable(lpCtx);

+#else

+	// Destroy the Mesa context

+	if (lpCtx->glBuffer)

+		(*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);

+	if (lpCtx->glCtx)

+		(*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);

+	if (lpCtx->glVis)

+		(*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);

+

+	RELEASE(lpCtx->m_pvbuf); // Release D3D vertex buffer

+	RELEASE(lpCtx->m_vbuf); // Release D3D vertex buffer

+

+	if (lpCtx->lpViewport3) {

+		if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);

+		RELEASE(lpCtx->lpViewport3);

+		lpCtx->lpViewport3 = NULL;

+	}

+

+	RELEASE(lpCtx->lpDev3);

+	if (lpCtx->lpDepth4) {

+		if (lpCtx->lpBack4)

+			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);

+		else

+			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);

+		RELEASE(lpCtx->lpDepth4);

+		lpCtx->lpDepth4 = NULL;

+	}

+	RELEASE(lpCtx->lpBack4);

+	RELEASE(lpCtx->lpFront4);

+	else

+	if (lpCtx->bFullscreen) {

+		IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);

+		IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);

+	}

+	RELEASE(lpCtx->lpD3D3);

+	RELEASE(lpCtx->lpDD4);

+	RELEASE(lpCtx->lpDD1);

+#endif // _USE_GLD3_WGL

+

+	lpCtx->bAllocated = FALSE;

+

+#ifdef GLD_THREADS

+	// Release serialized access

+	if (glb.bMultiThreaded)

+		LeaveCriticalSection(&CriticalSection);

+#endif

+

+	return FALSE;

+

+#undef DDLOG_CRITICAL_OR_WARN

+}

+

+// ***********************************************************************

+

+HGLRC dglCreateContext(

+	HDC a,

+	const DGL_pixelFormat *lpPF)

+{

+	int i;

+	HGLRC				hGLRC;

+	DGL_ctx*			lpCtx;

+	static BOOL			bWarnOnce = TRUE;

+	DWORD				dwThreadId = GetCurrentThreadId();

+    char                szMsg[256];

+    HWND                hWnd;

+    LONG                lpfnWndProc;

+

+	// Validate license

+	if (!dglValidate())

+		return NULL;

+

+	// Is context state ready ?

+	if (!bContextReady)

+		return NULL;

+

+	ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext for HDC=%X, ThreadId=%X", a, dwThreadId);

+

+	// Find next free context.

+	// Also ensure that only one Fullscreen context is created at any one time.

+	hGLRC = 0; // Default to Not Found

+	for (i=0; i<DGL_MAX_CONTEXTS; i++) {

+		if (ctxlist[i].bAllocated) {

+			if (/*glb.bFullscreen && */ctxlist[i].bFullscreen)

+				break;

+		} else {

+			hGLRC = (HGLRC)(i+1);

+			break;

+		}

+	}

+

+	// Bail if no GLRC was found

+	if (!hGLRC)

+		return NULL;

+

+	// Set the context pointer

+	lpCtx = dglGetContextAddress(hGLRC);

+	// Make sure that context is zeroed before we do anything.

+	// MFC and C++ apps call wglCreateContext() and wglDeleteContext() multiple times,

+	// even though only one context is ever used by the app, so keep it clean. (DaveM)

+	ZeroMemory(lpCtx, sizeof(DGL_ctx));

+	lpCtx->bAllocated = TRUE;

+	// Flag that buffers need creating on next wglMakeCurrent call.

+	lpCtx->bHasBeenCurrent = FALSE;

+	lpCtx->lpPF = (DGL_pixelFormat *)lpPF;	// cache pixel format

+	lpCtx->bCanRender = FALSE;

+

+	// Create all the internal resources here, not in dglMakeCurrent().

+	// We do a re-size check in dglMakeCurrent in case of re-allocations. (DaveM)

+	// We now try context allocations twice, first with video memory,

+	// then again with system memory. This is similar to technique

+	// used for dglWglResizeBuffers(). (DaveM)

+	if (lpCtx->bHasBeenCurrent == FALSE) {

+		if (!dglCreateContextBuffers(a, lpCtx, FALSE)) {

+			if (glb.bMessageBoxWarnings && bWarnOnce && dwLogging) {

+				bWarnOnce = FALSE;

+                switch (nContextError) {

+                   case GLDERR_DDRAW: strcpy(szMsg, szDDrawWarning); break;

+                   case GLDERR_D3D: strcpy(szMsg, szD3DWarning); break;

+                   case GLDERR_MEM: strcpy(szMsg, szResourceWarning); break;

+                   case GLDERR_BPP: strcpy(szMsg, szBPPWarning); break;

+                   default: strcpy(szMsg, "");

+                }

+                if (strlen(szMsg))

+                    MessageBox(NULL, szMsg, "GLDirect", MB_OK | MB_ICONWARNING);

+			}

+            // Only need to try again if memory error

+            if (nContextError == GLDERR_MEM) {

+			    ddlogPrintf(DDLOG_WARN, "dglCreateContext failed 1st time with video memory");

+            }

+            else {

+			    ddlogPrintf(DDLOG_ERROR, "dglCreateContext failed");

+                return NULL;

+            }

+		}

+	}

+

+	// Now that we have a hWnd, we can intercept the WindowProc.

+    hWnd = lpCtx->hWnd;

+    if (hWnd) {

+		// Only hook individual window handler once if not hooked before.

+		lpfnWndProc = GetWindowLong(hWnd, GWL_WNDPROC);

+		if (lpfnWndProc != (LONG)dglWndProc) {

+			lpCtx->lpfnWndProc = lpfnWndProc;

+			SetWindowLong(hWnd, GWL_WNDPROC, (LONG)dglWndProc);

+			}

+        // Find the parent window of the app too.

+        if (glb.hWndActive == NULL) {

+            while (hWnd != NULL) {

+                glb.hWndActive = hWnd;

+                hWnd = GetParent(hWnd);

+            }

+            // Hook the parent window too.

+            lpfnWndProc = GetWindowLong(glb.hWndActive, GWL_WNDPROC);

+            if (glb.hWndActive == lpCtx->hWnd)

+                glb.lpfnWndProc = lpCtx->lpfnWndProc;

+            else if (lpfnWndProc != (LONG)dglWndProc)

+                glb.lpfnWndProc = lpfnWndProc;

+            if (glb.lpfnWndProc)

+                SetWindowLong(glb.hWndActive, GWL_WNDPROC, (LONG)dglWndProc);

+        }

+    }

+

+	ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext succeeded for HGLRC=%d", (int)hGLRC);

+

+	return hGLRC;

+}

+

+// ***********************************************************************

+// Make a DirectGL context current

+// Used by wgl functions and dgl functions

+BOOL dglMakeCurrent(

+	HDC a,

+	HGLRC b)

+{

+	int context;

+	DGL_ctx* lpCtx;

+	HWND hWnd;

+	BOOL bNeedResize = FALSE;

+	BOOL bWindowChanged, bContextChanged;

+	LPDIRECTDRAWCLIPPER	lpddClipper;

+	DWORD dwThreadId = GetCurrentThreadId();

+	LONG lpfnWndProc;

+

+	// Validate license

+	if (!dglValidate())

+		return FALSE;

+

+	// Is context state ready ?

+	if (!bContextReady)

+		return FALSE;

+

+	context = (int)b; // This is as a result of STRICT!

+	ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: HDC=%X, HGLRC=%d, ThreadId=%X", a, context, dwThreadId);

+

+	// If the HGLRC is NULL then make no context current;

+	// Ditto if the HDC is NULL either. (DaveM)

+	if (context == 0 || a == 0) {

+		// Corresponding Mesa operation

+#ifdef _USE_GLD3_WGL

+		_mesa_make_current(NULL, NULL);

+#else

+		(*mesaFuncs.gl_make_current)(NULL, NULL);

+#endif

+		dglSetCurrentContext(0);

+		return TRUE;

+	}

+

+	// Make sure the HGLRC is in range

+	if ((context > DGL_MAX_CONTEXTS) || (context < 0)) {

+		ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: HGLRC out of range\n");

+		return FALSE;

+	}

+

+	// Find address of context and make sure that it has been allocated

+	lpCtx = dglGetContextAddress(b);

+	if (!lpCtx->bAllocated) {

+		ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: Context not allocated\n");

+//		return FALSE;

+		return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH

+	}

+

+#ifdef GLD_THREADS

+	// Serialize access to DirectDraw or DDS operations

+	if (glb.bMultiThreaded)

+		EnterCriticalSection(&CriticalSection);

+#endif

+

+	// Check if window has changed

+	hWnd = (a != lpCtx->hDC) ? WindowFromDC(a) : lpCtx->hWnd;

+	bWindowChanged = (hWnd != lpCtx->hWnd) ? TRUE : FALSE;

+	bContextChanged = (b != dglGetCurrentContext()) ? TRUE : FALSE;

+

+	// If the window has changed, make sure the clipper is updated. (DaveM)

+	if (glb.bDirectDrawPersistant && !lpCtx->bFullscreen && (bWindowChanged || bContextChanged)) {

+		lpCtx->hWnd = hWnd;

+#ifndef _USE_GLD3_WGL

+		IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);

+		IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);

+		IDirectDrawClipper_Release(lpddClipper);

+#endif // _USE_GLD3_WGL

+	}

+

+	// Make sure hDC and hWnd is current. (DaveM)

+	// Obtain the dimensions of the rendering window

+	lpCtx->hDC = a; // Cache DC

+	lpCtx->hWnd = hWnd;

+	hWndLastActive = hWnd;

+

+	// Check for non-window DC = memory DC ?

+	if (hWnd == NULL) {

+		if (GetClipBox(a, &lpCtx->rcScreenRect) == ERROR) {

+			ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglMakeCurrent\n");

+			SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);

+		}

+	}

+	else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {

+		ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglMakeCurrent\n");

+		SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);

+	}

+	// Check if buffers need to be re-sized;

+	// If so, wait until Mesa GL stuff is setup before re-sizing;

+	if (lpCtx->dwWidth != lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left ||

+		lpCtx->dwHeight != lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top)

+		bNeedResize = TRUE;

+

+	// Now we can update our globals

+	dglSetCurrentContext(b);

+

+	// Corresponding Mesa operation

+#ifdef _USE_GLD3_WGL

+	_mesa_make_current(lpCtx->glCtx, lpCtx->glBuffer);

+	lpCtx->glCtx->Driver.UpdateState(lpCtx->glCtx, _NEW_ALL);

+	if (bNeedResize) {

+		// Resize buffers (Note Mesa GL needs to be setup beforehand);

+		// Resize Mesa internal buffer too via glViewport() command,

+		// which subsequently calls dglWglResizeBuffers() too.

+		lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);

+		lpCtx->bHasBeenCurrent = TRUE;

+	}

+#else

+	(*mesaFuncs.gl_make_current)(lpCtx->glCtx, lpCtx->glBuffer);

+

+	dglSetupDDPointers(lpCtx->glCtx);

+

+	// Insure DirectDraw surfaces fit current window DC

+	if (bNeedResize) {

+		// Resize buffers (Note Mesa GL needs to be setup beforehand);

+		// Resize Mesa internal buffer too via glViewport() command,

+		// which subsequently calls dglWglResizeBuffers() too.

+		(*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);

+		lpCtx->bHasBeenCurrent = TRUE;

+	}

+#endif // _USE_GLD3_WGL

+	ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: width = %d, height = %d", lpCtx->dwWidth, lpCtx->dwHeight);

+

+	// We have to clear D3D back buffer and render state if emulated front buffering

+	// for different window (but not context) like in Solid Edge.

+	if (glb.bDirectDrawPersistant && glb.bPersistantBuffers

+		&& (bWindowChanged /* || bContextChanged */) && lpCtx->EmulateSingle) {

+#ifdef _USE_GLD3_WGL

+//		IDirect3DDevice8_EndScene(lpCtx->pDev);

+//		lpCtx->bSceneStarted = FALSE;

+		lpCtx->glCtx->Driver.Clear(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,

+			GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);

+#else

+		IDirect3DDevice3_EndScene(lpCtx->lpDev3);

+		lpCtx->bSceneStarted = FALSE;

+		dglClearD3D(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,

+			GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);

+#endif // _USE_GLD3_WGL

+	}

+

+	// The first time we call MakeCurrent we set the initial viewport size

+	if (lpCtx->bHasBeenCurrent == FALSE)

+#ifdef _USE_GLD3_WGL

+		lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);

+#else

+		(*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);

+#endif // _USE_GLD3_WGL

+	lpCtx->bHasBeenCurrent = TRUE;

+

+#ifdef GLD_THREADS

+	// Release serialized access

+	if (glb.bMultiThreaded)

+		LeaveCriticalSection(&CriticalSection);

+#endif

+

+	return TRUE;

+}

+

+// ***********************************************************************

+

+BOOL dglDeleteContext(

+	HGLRC a)

+{

+	DGL_ctx* lpCtx;

+	DWORD dwThreadId = GetCurrentThreadId();

+    char argstr[256];

+

+#if 0	// We have enough trouble throwing exceptions as it is... (DaveM)

+	// Validate license

+	if (!dglValidate())

+		return FALSE;

+#endif

+

+	// Is context state ready ?

+	if (!bContextReady)

+		return FALSE;

+

+	ddlogPrintf(DDLOG_SYSTEM, "dglDeleteContext: Deleting context HGLRC=%d, ThreadId=%X", (int)a, dwThreadId);

+

+	// Make sure the HGLRC is in range

+	if (((int) a> DGL_MAX_CONTEXTS) || ((int)a < 0)) {

+		ddlogMessage(DDLOG_ERROR, "dglDeleteCurrent: HGLRC out of range\n");

+		return FALSE;

+	}

+

+	// Make sure context is valid

+	lpCtx = dglGetContextAddress(a);

+	if (!lpCtx->bAllocated) {

+		ddlogPrintf(DDLOG_WARN, "Tried to delete unallocated context HGLRC=%d", (int)a);

+//		return FALSE;

+		return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH

+	}

+

+	// Make sure context is de-activated

+	if (a == dglGetCurrentContext()) {

+		ddlogPrintf(DDLOG_WARN, "dglDeleteContext: context HGLRC=%d still active", (int)a);

+		dglMakeCurrent(NULL, NULL);

+	}

+

+#ifdef GLD_THREADS

+	// Serialize access to DirectDraw or DDS operations

+	if (glb.bMultiThreaded)

+		EnterCriticalSection(&CriticalSection);

+#endif

+

+	// We are about to destroy all Direct3D objects.

+	// Therefore we must disable rendering

+	lpCtx->bCanRender = FALSE;

+

+	// This exception handler was installed to catch some

+	// particularly nasty apps. Console apps that call exit()

+	// fall into this catagory (i.e. Win32 Glut).

+

+    // VC cannot successfully implement multiple exception handlers

+    // if more than one exception occurs. Therefore reverting back to

+    // single exception handler as Keith originally had it. (DaveM)

+

+#define WARN_MESSAGE(p) strcpy(argstr, (#p));

+#define SAFE_RELEASE(p) WARN_MESSAGE(p); RELEASE(p);

+

+__try {

+#ifdef _USE_GLD3_WGL

+    WARN_MESSAGE(gl_destroy_framebuffer);

+	if (lpCtx->glBuffer)

+		_mesa_destroy_framebuffer(lpCtx->glBuffer);

+    WARN_MESSAGE(gl_destroy_context);

+	if (lpCtx->glCtx)

+		_mesa_destroy_context(lpCtx->glCtx);

+    WARN_MESSAGE(gl_destroy_visual);

+	if (lpCtx->glVis)

+		_mesa_destroy_visual(lpCtx->glVis);

+

+	_gldDriver.DestroyDrawable(lpCtx);

+#else

+	// Destroy the Mesa context

+    WARN_MESSAGE(gl_destroy_framebuffer);

+	if (lpCtx->glBuffer)

+		(*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);

+    WARN_MESSAGE(gl_destroy_context);

+	if (lpCtx->glCtx)

+		(*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);

+    WARN_MESSAGE(gl_destroy_visual);

+	if (lpCtx->glVis)

+		(*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);

+

+	SAFE_RELEASE(lpCtx->m_pvbuf); // release D3D vertex buffer

+	SAFE_RELEASE(lpCtx->m_vbuf); // release D3D vertex buffer

+

+	// Delete the global palette

+	SAFE_RELEASE(lpCtx->lpGlobalPalette);

+

+	// Clean up.

+	if (lpCtx->lpViewport3) {

+		if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);

+		SAFE_RELEASE(lpCtx->lpViewport3);

+		lpCtx->lpViewport3 = NULL;

+	}

+

+	SAFE_RELEASE(lpCtx->lpDev3);

+	if (lpCtx->lpDepth4) {

+		if (lpCtx->lpBack4)

+			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);

+		else

+			IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);

+		SAFE_RELEASE(lpCtx->lpDepth4);

+		lpCtx->lpDepth4 = NULL;

+	}

+	SAFE_RELEASE(lpCtx->lpBack4);

+	SAFE_RELEASE(lpCtx->lpFront4);

+	if (lpCtx->bFullscreen) {

+		IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);

+		IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);

+	}

+	SAFE_RELEASE(lpCtx->lpD3D3);

+	SAFE_RELEASE(lpCtx->lpDD4);

+	SAFE_RELEASE(lpCtx->lpDD1);

+#endif // _ULSE_GLD3_WGL

+

+}

+__except(EXCEPTION_EXECUTE_HANDLER) {

+    ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContext: %s", argstr);

+}

+

+	// Restore the window message handler because this context may be used

+	// again by another window with a *different* message handler. (DaveM)

+	if (lpCtx->lpfnWndProc) {

+		SetWindowLong(lpCtx->hWnd, GWL_WNDPROC, (LONG)lpCtx->lpfnWndProc);

+		lpCtx->lpfnWndProc = (LONG)NULL;

+		}

+

+	lpCtx->bAllocated = FALSE; // This context is now free for use

+

+#ifdef GLD_THREADS

+	// Release serialized access

+	if (glb.bMultiThreaded)

+		LeaveCriticalSection(&CriticalSection);

+#endif

+

+	return TRUE;

+}

+

+// ***********************************************************************

+

+BOOL dglSwapBuffers(

+	HDC hDC)

+{

+	RECT		rSrcRect;	// Source rectangle

+	RECT		rDstRect;	// Destination rectangle

+	POINT		pt;

+	HRESULT		hResult;

+

+	DDBLTFX		bltFX;

+	DWORD		dwBlitFlags;

+	DDBLTFX		*lpBltFX;

+

+//	DWORD		dwThreadId = GetCurrentThreadId();

+	HGLRC		hGLRC = dglGetCurrentContext();

+	DGL_ctx		*lpCtx = dglGetContextAddress(hGLRC);

+	HWND		hWnd;

+

+	HDC 		hDCAux;		// for memory DC

+	int 		x,y,w,h;	// for memory DC BitBlt

+

+#if 0	// Perhaps not a good idea. Called too often. KH

+	// Validate license

+	if (!dglValidate())

+		return FALSE;

+#endif

+

+	if (!lpCtx) {

+		return TRUE; //FALSE; // No current context

+	}

+

+	if (!lpCtx->bCanRender) {

+		// Don't return false else some apps will bail.

+		return TRUE;

+	}

+

+	hWnd = lpCtx->hWnd;

+	if (hDC != lpCtx->hDC) {

+		ddlogPrintf(DDLOG_WARN, "dglSwapBuffers: HDC=%X does not match HDC=%X for HGLRC=%d", hDC, lpCtx->hDC, hGLRC);

+		hWnd = WindowFromDC(hDC);

+	}

+

+#ifndef _USE_GLD3_WGL

+	// Ensure that the surfaces exist before we tell

+	// the device to render to them.

+	IDirectDraw4_RestoreAllSurfaces(lpCtx->lpDD4);

+

+	// Make sure that the vertex caches have been emptied

+//	dglStateChange(lpCtx);

+

+	// Some OpenGL programs don't issue a glFinish - check for it here.

+	if (lpCtx->bSceneStarted) {

+		IDirect3DDevice3_EndScene(lpCtx->lpDev3);

+		lpCtx->bSceneStarted = FALSE;

+	}

+#endif

+

+#if 0

+	// If the calling app is not active then we don't need to Blit/Flip.

+	// We can therefore simply return TRUE.

+	if (!glb.bAppActive)

+		return TRUE;

+	// Addendum: This is WRONG! We should bail if the app is *minimized*,

+	//           not merely if the app is just plain 'not active'.

+	//           KeithH, 27/May/2000.

+#endif

+

+	// Check for non-window DC = memory DC ?

+	if (hWnd == NULL) {

+		if (GetClipBox(hDC, &rSrcRect) == ERROR)

+			return TRUE;

+		// Use GDI BitBlt instead from compatible DirectDraw DC

+		x = rSrcRect.left;

+		y = rSrcRect.top;

+		w = rSrcRect.right - rSrcRect.left;

+		h = rSrcRect.bottom - rSrcRect.top;

+

+		// Ack. DX8 does not have a GetDC() function...

+                // TODO: Defer to DX7 or DX9 drivers... (DaveM)

+		return TRUE;

+	}

+

+	// Bail if window client region is not drawable, like in Solid Edge

+	if (!IsWindow(hWnd) /* || !IsWindowVisible(hWnd) */ || !GetClientRect(hWnd, &rSrcRect))

+		return TRUE;

+

+#ifdef GLD_THREADS

+	// Serialize access to DirectDraw or DDS operations

+	if (glb.bMultiThreaded)

+		EnterCriticalSection(&CriticalSection);

+#endif

+

+#ifdef _USE_GLD3_WGL

+	// Notify Mesa of impending swap, so Mesa can flush internal buffers.

+	_mesa_notifySwapBuffers(lpCtx->glCtx);

+	// Now perform driver buffer swap

+	_gldDriver.SwapBuffers(lpCtx, hDC, hWnd);

+#else

+	if (lpCtx->bFullscreen) {

+		// Sync with retrace if required

+		if (glb.bWaitForRetrace) {

+			IDirectDraw4_WaitForVerticalBlank(

+				lpCtx->lpDD4,

+				DDWAITVB_BLOCKBEGIN,

+				0);

+		}

+

+		// Perform the fullscreen flip

+		TRY(IDirectDrawSurface4_Flip(

+			lpCtx->lpFront4,

+			NULL,

+			DDFLIP_WAIT),

+			"dglSwapBuffers: Flip");

+	} else {

+		// Calculate current window position and size

+		pt.x = pt.y = 0;

+		ClientToScreen(hWnd, &pt);

+		GetClientRect(hWnd, &rDstRect);

+		if (rDstRect.right > lpCtx->dwModeWidth)

+			rDstRect.right = lpCtx->dwModeWidth;

+		if (rDstRect.bottom > lpCtx->dwModeHeight)

+			rDstRect.bottom = lpCtx->dwModeHeight;

+		OffsetRect(&rDstRect, pt.x, pt.y);

+		rSrcRect.left = rSrcRect.top = 0;

+		rSrcRect.right = lpCtx->dwWidth;

+		rSrcRect.bottom = lpCtx->dwHeight;

+		if (rSrcRect.right > lpCtx->dwModeWidth)

+			rSrcRect.right = lpCtx->dwModeWidth;

+		if (rSrcRect.bottom > lpCtx->dwModeHeight)

+			rSrcRect.bottom = lpCtx->dwModeHeight;

+

+		if (glb.bWaitForRetrace) {

+			// Sync the blit to the vertical retrace

+			ZeroMemory(&bltFX, sizeof(bltFX));

+			bltFX.dwSize = sizeof(bltFX);

+			bltFX.dwDDFX = DDBLTFX_NOTEARING;

+			dwBlitFlags = DDBLT_WAIT | DDBLT_DDFX;

+			lpBltFX = &bltFX;

+		} else {

+			dwBlitFlags = DDBLT_WAIT;

+			lpBltFX = NULL;

+		}

+

+		// Perform the actual blit

+		TRY(IDirectDrawSurface4_Blt(

+			lpCtx->lpFront4,

+			&rDstRect,

+			lpCtx->lpBack4, // Blit source

+			&rSrcRect,

+			dwBlitFlags,

+			lpBltFX),

+			"dglSwapBuffers: Blt");

+	}

+#endif // _USE_GLD3_WGL

+

+#ifdef GLD_THREADS

+	// Release serialized access

+	if (glb.bMultiThreaded)

+		LeaveCriticalSection(&CriticalSection);

+#endif

+

+    // TODO: Re-instate rendering bitmap snapshot feature??? (DaveM)

+

+	// Render frame is completed

+	ValidateRect(hWnd, NULL);

+	lpCtx->bFrameStarted = FALSE;

+

+	return TRUE;

+}

+

+// ***********************************************************************

diff --git a/mesalib/src/mesa/main/api_arrayelt.c b/mesalib/src/mesa/main/api_arrayelt.c
index 080c20606..3c59e9be3 100644
--- a/mesalib/src/mesa/main/api_arrayelt.c
+++ b/mesalib/src/mesa/main/api_arrayelt.c
@@ -51,7 +51,7 @@ typedef struct {
    int offset;

 } AEarray;

 

-typedef void (GLAPIENTRY *attrib_func)( GLuint indx, const void *data );

+typedef void (*attrib_func)( GLuint indx, const void *data );

 

 typedef struct {

    const struct gl_client_array *array;

diff --git a/mesalib/src/mesa/main/api_exec.c b/mesalib/src/mesa/main/api_exec.c
index d7a4c90d7..02e39c189 100644
--- a/mesalib/src/mesa/main/api_exec.c
+++ b/mesalib/src/mesa/main/api_exec.c
@@ -104,7 +104,6 @@
 

 #if FEATURE_GL

 

-

 /**

  * Initialize a dispatch table with pointers to Mesa's immediate-mode

  * commands.

diff --git a/mesalib/src/mesa/main/blend.c b/mesalib/src/mesa/main/blend.c
index c74a16803..22031fd2a 100644
--- a/mesalib/src/mesa/main/blend.c
+++ b/mesalib/src/mesa/main/blend.c
@@ -1,822 +1,822 @@
-/**
- * \file blend.c
- * Blending operations.
- */
-
-/*
- * Mesa 3-D graphics library
- * Version:  6.5.1
- *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-
-#include "glheader.h"
-#include "blend.h"
-#include "context.h"
-#include "enums.h"
-#include "macros.h"
-#include "mtypes.h"
-
-
-
-/**
- * Check if given blend source factor is legal.
- * \return GL_TRUE if legal, GL_FALSE otherwise.
- */
-static GLboolean
-legal_src_factor(const struct gl_context *ctx, GLenum factor)
-{
-   switch (factor) {
-   case GL_SRC_COLOR:
-   case GL_ONE_MINUS_SRC_COLOR:
-      return ctx->Extensions.NV_blend_square;
-   case GL_ZERO:
-   case GL_ONE:
-   case GL_DST_COLOR:
-   case GL_ONE_MINUS_DST_COLOR:
-   case GL_SRC_ALPHA:
-   case GL_ONE_MINUS_SRC_ALPHA:
-   case GL_DST_ALPHA:
-   case GL_ONE_MINUS_DST_ALPHA:
-   case GL_SRC_ALPHA_SATURATE:
-   case GL_CONSTANT_COLOR:
-   case GL_ONE_MINUS_CONSTANT_COLOR:
-   case GL_CONSTANT_ALPHA:
-   case GL_ONE_MINUS_CONSTANT_ALPHA:
-      return GL_TRUE;
-   default:
-      return GL_FALSE;
-   }
-}
-
-
-/**
- * Check if given blend destination factor is legal.
- * \return GL_TRUE if legal, GL_FALSE otherwise.
- */
-static GLboolean
-legal_dst_factor(const struct gl_context *ctx, GLenum factor)
-{
-   switch (factor) {
-   case GL_DST_COLOR:
-   case GL_ONE_MINUS_DST_COLOR:
-      return ctx->Extensions.NV_blend_square;
-   case GL_ZERO:
-   case GL_ONE:
-   case GL_SRC_COLOR:
-   case GL_ONE_MINUS_SRC_COLOR:
-   case GL_SRC_ALPHA:
-   case GL_ONE_MINUS_SRC_ALPHA:
-   case GL_DST_ALPHA:
-   case GL_ONE_MINUS_DST_ALPHA:
-   case GL_CONSTANT_COLOR:
-   case GL_ONE_MINUS_CONSTANT_COLOR:
-   case GL_CONSTANT_ALPHA:
-   case GL_ONE_MINUS_CONSTANT_ALPHA:
-      return GL_TRUE;
-   default:
-      return GL_FALSE;
-   }
-}
-
-
-/**
- * Check if src/dest RGB/A blend factors are legal.  If not generate
- * a GL error.
- * \return GL_TRUE if factors are legal, GL_FALSE otherwise.
- */
-static GLboolean
-validate_blend_factors(struct gl_context *ctx, const char *func,
-                       GLenum sfactorRGB, GLenum dfactorRGB,
-                       GLenum sfactorA, GLenum dfactorA)
-{
-   if (!legal_src_factor(ctx, sfactorRGB)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "%s(sfactorRGB = %s)", func,
-                  _mesa_lookup_enum_by_nr(sfactorRGB));
-      return GL_FALSE;
-   }
-
-   if (!legal_dst_factor(ctx, dfactorRGB)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "%s(dfactorRGB = %s)", func,
-                  _mesa_lookup_enum_by_nr(dfactorRGB));
-      return GL_FALSE;
-   }
-
-   if (sfactorA != sfactorRGB && !legal_src_factor(ctx, sfactorA)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "%s(sfactorA = %s)", func,
-                  _mesa_lookup_enum_by_nr(sfactorA));
-      return GL_FALSE;
-   }
-
-   if (dfactorA != dfactorRGB && !legal_dst_factor(ctx, dfactorA)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "%s(dfactorA = %s)", func,
-                  _mesa_lookup_enum_by_nr(dfactorA));
-      return GL_FALSE;
-   }
-
-   return GL_TRUE;
-}
-
-
-/**
- * Specify the blending operation.
- *
- * \param sfactor source factor operator.
- * \param dfactor destination factor operator.
- *
- * \sa glBlendFunc, glBlendFuncSeparateEXT
- */
-void GLAPIENTRY
-_mesa_BlendFunc( GLenum sfactor, GLenum dfactor )
-{
-   _mesa_BlendFuncSeparateEXT(sfactor, dfactor, sfactor, dfactor);
-}
-
-
-/**
- * Set the separate blend source/dest factors for all draw buffers.
- *
- * \param sfactorRGB RGB source factor operator.
- * \param dfactorRGB RGB destination factor operator.
- * \param sfactorA alpha source factor operator.
- * \param dfactorA alpha destination factor operator.
- */
-void GLAPIENTRY
-_mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB,
-                            GLenum sfactorA, GLenum dfactorA )
-{
-   GLuint buf, numBuffers;
-   GLboolean changed;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBlendFuncSeparate %s %s %s %s\n",
-                  _mesa_lookup_enum_by_nr(sfactorRGB),
-                  _mesa_lookup_enum_by_nr(dfactorRGB),
-                  _mesa_lookup_enum_by_nr(sfactorA),
-                  _mesa_lookup_enum_by_nr(dfactorA));
-
-   if (!validate_blend_factors(ctx, "glBlendFuncSeparate",
-                               sfactorRGB, dfactorRGB,
-                               sfactorA, dfactorA)) {
-      return;
-   }
-
-   numBuffers = ctx->Extensions.ARB_draw_buffers_blend
-      ? ctx->Const.MaxDrawBuffers : 1;
-
-   changed = GL_FALSE;
-   for (buf = 0; buf < numBuffers; buf++) {
-      if (ctx->Color.Blend[buf].SrcRGB != sfactorRGB ||
-          ctx->Color.Blend[buf].DstRGB != dfactorRGB ||
-          ctx->Color.Blend[buf].SrcA != sfactorA ||
-          ctx->Color.Blend[buf].DstA != dfactorA) {
-         changed = GL_TRUE;
-         break;
-      }
-   }
-   if (!changed)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-
-   for (buf = 0; buf < numBuffers; buf++) {
-      ctx->Color.Blend[buf].SrcRGB = sfactorRGB;
-      ctx->Color.Blend[buf].DstRGB = dfactorRGB;
-      ctx->Color.Blend[buf].SrcA = sfactorA;
-      ctx->Color.Blend[buf].DstA = dfactorA;
-   }
-   ctx->Color._BlendFuncPerBuffer = GL_FALSE;
-
-   if (ctx->Driver.BlendFuncSeparate) {
-      ctx->Driver.BlendFuncSeparate(ctx, sfactorRGB, dfactorRGB,
-                                    sfactorA, dfactorA);
-   }
-}
-
-
-#if _HAVE_FULL_GL
-
-
-/**
- * Set blend source/dest factors for one color buffer/target.
- */
-void GLAPIENTRY
-_mesa_BlendFunci(GLuint buf, GLenum sfactor, GLenum dfactor)
-{
-   _mesa_BlendFuncSeparatei(buf, sfactor, dfactor, sfactor, dfactor);
-}
-
-
-/**
- * Set separate blend source/dest factors for one color buffer/target.
- */
-void GLAPIENTRY
-_mesa_BlendFuncSeparatei(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
-                         GLenum sfactorA, GLenum dfactorA)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (!ctx->Extensions.ARB_draw_buffers_blend) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glBlendFunc[Separate]i()");
-      return;
-   }
-
-   if (buf >= ctx->Const.MaxDrawBuffers) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)",
-                  buf);
-      return;
-   }
-
-   if (!validate_blend_factors(ctx, "glBlendFuncSeparatei",
-                               sfactorRGB, dfactorRGB,
-                               sfactorA, dfactorA)) {
-      return;
-   }
-
-   if (ctx->Color.Blend[buf].SrcRGB == sfactorRGB &&
-       ctx->Color.Blend[buf].DstRGB == dfactorRGB &&
-       ctx->Color.Blend[buf].SrcA == sfactorA &&
-       ctx->Color.Blend[buf].DstA == dfactorA)
-      return; /* no change */
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-
-   ctx->Color.Blend[buf].SrcRGB = sfactorRGB;
-   ctx->Color.Blend[buf].DstRGB = dfactorRGB;
-   ctx->Color.Blend[buf].SrcA = sfactorA;
-   ctx->Color.Blend[buf].DstA = dfactorA;
-   ctx->Color._BlendFuncPerBuffer = GL_TRUE;
-
-   if (ctx->Driver.BlendFuncSeparatei) {
-      ctx->Driver.BlendFuncSeparatei(ctx, buf, sfactorRGB, dfactorRGB,
-                                     sfactorA, dfactorA);
-   }
-}
-
-
-/**
- * Check if given blend equation is legal.
- * \return GL_TRUE if legal, GL_FALSE otherwise.
- */
-static GLboolean
-legal_blend_equation(const struct gl_context *ctx,
-                     GLenum mode, GLboolean is_separate)
-{
-   switch (mode) {
-   case GL_FUNC_ADD:
-      return GL_TRUE;
-   case GL_MIN:
-   case GL_MAX:
-      return ctx->Extensions.EXT_blend_minmax;
-   case GL_LOGIC_OP:
-      /* glBlendEquationSeparate cannot take GL_LOGIC_OP as a parameter.
-       */
-      return ctx->Extensions.EXT_blend_logic_op && !is_separate;
-   case GL_FUNC_SUBTRACT:
-   case GL_FUNC_REVERSE_SUBTRACT:
-      return ctx->Extensions.EXT_blend_subtract;
-   default:
-      return GL_FALSE;
-   }
-}
-
-
-/* This is really an extension function! */
-void GLAPIENTRY
-_mesa_BlendEquation( GLenum mode )
-{
-   GLuint buf, numBuffers;
-   GLboolean changed;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBlendEquation(%s)\n",
-                  _mesa_lookup_enum_by_nr(mode));
-
-   if (!legal_blend_equation(ctx, mode, GL_FALSE)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquation");
-      return;
-   }
-
-   numBuffers = ctx->Extensions.ARB_draw_buffers_blend
-      ? ctx->Const.MaxDrawBuffers : 1;
-
-   changed = GL_FALSE;
-   for (buf = 0; buf < numBuffers; buf++) {
-      if (ctx->Color.Blend[buf].EquationRGB != mode ||
-          ctx->Color.Blend[buf].EquationA != mode) {
-         changed = GL_TRUE;
-         break;
-      }
-   }
-   if (!changed)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   for (buf = 0; buf < numBuffers; buf++) {
-      ctx->Color.Blend[buf].EquationRGB = mode;
-      ctx->Color.Blend[buf].EquationA = mode;
-   }
-   ctx->Color._BlendEquationPerBuffer = GL_FALSE;
-
-   if (ctx->Driver.BlendEquationSeparate)
-      (*ctx->Driver.BlendEquationSeparate)( ctx, mode, mode );
-}
-
-
-/**
- * Set blend equation for one color buffer/target.
- */
-void GLAPIENTRY
-_mesa_BlendEquationi(GLuint buf, GLenum mode)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBlendEquationi(%u, %s)\n",
-                  buf, _mesa_lookup_enum_by_nr(mode));
-
-   if (buf >= ctx->Const.MaxDrawBuffers) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)",
-                  buf);
-      return;
-   }
-
-   if (!legal_blend_equation(ctx, mode, GL_FALSE)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationi");
-      return;
-   }
-
-   if (ctx->Color.Blend[buf].EquationRGB == mode &&
-       ctx->Color.Blend[buf].EquationA == mode)
-      return;  /* no change */
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   ctx->Color.Blend[buf].EquationRGB = mode;
-   ctx->Color.Blend[buf].EquationA = mode;
-   ctx->Color._BlendEquationPerBuffer = GL_TRUE;
-
-   if (ctx->Driver.BlendEquationSeparatei)
-      ctx->Driver.BlendEquationSeparatei(ctx, buf, mode, mode);
-}
-
-
-void GLAPIENTRY
-_mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA )
-{
-   GLuint buf, numBuffers;
-   GLboolean changed;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBlendEquationSeparateEXT(%s %s)\n",
-                  _mesa_lookup_enum_by_nr(modeRGB),
-                  _mesa_lookup_enum_by_nr(modeA));
-
-   if ( (modeRGB != modeA) && !ctx->Extensions.EXT_blend_equation_separate ) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-		  "glBlendEquationSeparateEXT not supported by driver");
-      return;
-   }
-
-   if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeRGB)");
-      return;
-   }
-
-   if (!legal_blend_equation(ctx, modeA, GL_TRUE)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeA)");
-      return;
-   }
-
-   numBuffers = ctx->Extensions.ARB_draw_buffers_blend
-      ? ctx->Const.MaxDrawBuffers : 1;
-
-   changed = GL_FALSE;
-   for (buf = 0; buf < numBuffers; buf++) {
-      if (ctx->Color.Blend[buf].EquationRGB != modeRGB ||
-          ctx->Color.Blend[buf].EquationA != modeA) {
-         changed = GL_TRUE;
-         break;
-      }
-   }
-   if (!changed)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   for (buf = 0; buf < numBuffers; buf++) {
-      ctx->Color.Blend[buf].EquationRGB = modeRGB;
-      ctx->Color.Blend[buf].EquationA = modeA;
-   }
-   ctx->Color._BlendEquationPerBuffer = GL_FALSE;
-
-   if (ctx->Driver.BlendEquationSeparate)
-      ctx->Driver.BlendEquationSeparate(ctx, modeRGB, modeA);
-}
-
-
-/**
- * Set separate blend equations for one color buffer/target.
- */
-void
-_mesa_BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeA)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBlendEquationSeparatei(%u, %s %s)\n", buf,
-                  _mesa_lookup_enum_by_nr(modeRGB),
-                  _mesa_lookup_enum_by_nr(modeA));
-
-   if (buf >= ctx->Const.MaxDrawBuffers) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glBlendEquationSeparatei(buffer=%u)",
-                  buf);
-      return;
-   }
-
-   if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeRGB)");
-      return;
-   }
-
-   if (!legal_blend_equation(ctx, modeA, GL_TRUE)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeA)");
-      return;
-   }
-
-   if (ctx->Color.Blend[buf].EquationRGB == modeRGB &&
-       ctx->Color.Blend[buf].EquationA == modeA)
-      return;  /* no change */
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   ctx->Color.Blend[buf].EquationRGB = modeRGB;
-   ctx->Color.Blend[buf].EquationA = modeA;
-   ctx->Color._BlendEquationPerBuffer = GL_TRUE;
-
-   if (ctx->Driver.BlendEquationSeparatei)
-      ctx->Driver.BlendEquationSeparatei(ctx, buf, modeRGB, modeA);
-}
-
-
-
-#endif /* _HAVE_FULL_GL */
-
-
-/**
- * Set the blending color.
- *
- * \param red red color component.
- * \param green green color component.
- * \param blue blue color component.
- * \param alpha alpha color component.
- *
- * \sa glBlendColor().
- *
- * Clamps the parameters and updates gl_colorbuffer_attrib::BlendColor.  On a
- * change, flushes the vertices and notifies the driver via
- * dd_function_table::BlendColor callback.
- */
-void GLAPIENTRY
-_mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
-{
-   GLfloat tmp[4];
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   tmp[0] = CLAMP( red,   0.0F, 1.0F );
-   tmp[1] = CLAMP( green, 0.0F, 1.0F );
-   tmp[2] = CLAMP( blue,  0.0F, 1.0F );
-   tmp[3] = CLAMP( alpha, 0.0F, 1.0F );
-
-   if (TEST_EQ_4V(tmp, ctx->Color.BlendColor))
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   COPY_4FV( ctx->Color.BlendColor, tmp );
-
-   if (ctx->Driver.BlendColor)
-      (*ctx->Driver.BlendColor)(ctx, tmp);
-}
-
-
-/**
- * Specify the alpha test function.
- *
- * \param func alpha comparison function.
- * \param ref reference value.
- *
- * Verifies the parameters and updates gl_colorbuffer_attrib. 
- * On a change, flushes the vertices and notifies the driver via
- * dd_function_table::AlphaFunc callback.
- */
-void GLAPIENTRY
-_mesa_AlphaFunc( GLenum func, GLclampf ref )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glAlphaFunc(%s, %f)\n",
-                  _mesa_lookup_enum_by_nr(func), ref);
-
-   switch (func) {
-   case GL_NEVER:
-   case GL_LESS:
-   case GL_EQUAL:
-   case GL_LEQUAL:
-   case GL_GREATER:
-   case GL_NOTEQUAL:
-   case GL_GEQUAL:
-   case GL_ALWAYS:
-      ref = CLAMP(ref, 0.0F, 1.0F);
-
-      if (ctx->Color.AlphaFunc == func && ctx->Color.AlphaRef == ref)
-         return; /* no change */
-
-      FLUSH_VERTICES(ctx, _NEW_COLOR);
-      ctx->Color.AlphaFunc = func;
-      ctx->Color.AlphaRef = ref;
-
-      if (ctx->Driver.AlphaFunc)
-         ctx->Driver.AlphaFunc(ctx, func, ref);
-      return;
-
-   default:
-      _mesa_error( ctx, GL_INVALID_ENUM, "glAlphaFunc(func)" );
-      return;
-   }
-}
-
-
-/**
- * Specify a logic pixel operation for color index rendering.
- *
- * \param opcode operation.
- *
- * Verifies that \p opcode is a valid enum and updates
-gl_colorbuffer_attrib::LogicOp.
- * On a change, flushes the vertices and notifies the driver via the
- * dd_function_table::LogicOpcode callback.
- */
-void GLAPIENTRY
-_mesa_LogicOp( GLenum opcode )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glLogicOp(%s)\n", _mesa_lookup_enum_by_nr(opcode));
-
-   switch (opcode) {
-      case GL_CLEAR:
-      case GL_SET:
-      case GL_COPY:
-      case GL_COPY_INVERTED:
-      case GL_NOOP:
-      case GL_INVERT:
-      case GL_AND:
-      case GL_NAND:
-      case GL_OR:
-      case GL_NOR:
-      case GL_XOR:
-      case GL_EQUIV:
-      case GL_AND_REVERSE:
-      case GL_AND_INVERTED:
-      case GL_OR_REVERSE:
-      case GL_OR_INVERTED:
-	 break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glLogicOp" );
-	 return;
-   }
-
-   if (ctx->Color.LogicOp == opcode)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   ctx->Color.LogicOp = opcode;
-
-   if (ctx->Driver.LogicOpcode)
-      ctx->Driver.LogicOpcode( ctx, opcode );
-}
-
-#if _HAVE_FULL_GL
-void GLAPIENTRY
-_mesa_IndexMask( GLuint mask )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->Color.IndexMask == mask)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   ctx->Color.IndexMask = mask;
-}
-#endif
-
-
-/**
- * Enable or disable writing of frame buffer color components.
- *
- * \param red whether to mask writing of the red color component.
- * \param green whether to mask writing of the green color component.
- * \param blue whether to mask writing of the blue color component.
- * \param alpha whether to mask writing of the alpha color component.
- *
- * \sa glColorMask().
- *
- * Sets the appropriate value of gl_colorbuffer_attrib::ColorMask.  On a
- * change, flushes the vertices and notifies the driver via the
- * dd_function_table::ColorMask callback.
- */
-void GLAPIENTRY
-_mesa_ColorMask( GLboolean red, GLboolean green,
-                 GLboolean blue, GLboolean alpha )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLubyte tmp[4];
-   GLuint i;
-   GLboolean flushed;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glColorMask(%d, %d, %d, %d)\n",
-                  red, green, blue, alpha);
-
-   /* Shouldn't have any information about channel depth in core mesa
-    * -- should probably store these as the native booleans:
-    */
-   tmp[RCOMP] = red    ? 0xff : 0x0;
-   tmp[GCOMP] = green  ? 0xff : 0x0;
-   tmp[BCOMP] = blue   ? 0xff : 0x0;
-   tmp[ACOMP] = alpha  ? 0xff : 0x0;
-
-   flushed = GL_FALSE;
-   for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
-      if (!TEST_EQ_4V(tmp, ctx->Color.ColorMask[i])) {
-         if (!flushed) {
-            FLUSH_VERTICES(ctx, _NEW_COLOR);
-         }
-         flushed = GL_TRUE;
-         COPY_4UBV(ctx->Color.ColorMask[i], tmp);
-      }
-   }
-
-   if (ctx->Driver.ColorMask)
-      ctx->Driver.ColorMask( ctx, red, green, blue, alpha );
-}
-
-
-/**
- * For GL_EXT_draw_buffers2 and GL3
- */
-void GLAPIENTRY
-_mesa_ColorMaskIndexed( GLuint buf, GLboolean red, GLboolean green,
-                        GLboolean blue, GLboolean alpha )
-{
-   GLubyte tmp[4];
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glColorMaskIndexed %u %d %d %d %d\n",
-                  buf, red, green, blue, alpha);
-
-   if (buf >= ctx->Const.MaxDrawBuffers) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glColorMaskIndexed(buf=%u)", buf);
-      return;
-   }
-
-   /* Shouldn't have any information about channel depth in core mesa
-    * -- should probably store these as the native booleans:
-    */
-   tmp[RCOMP] = red    ? 0xff : 0x0;
-   tmp[GCOMP] = green  ? 0xff : 0x0;
-   tmp[BCOMP] = blue   ? 0xff : 0x0;
-   tmp[ACOMP] = alpha  ? 0xff : 0x0;
-
-   if (TEST_EQ_4V(tmp, ctx->Color.ColorMask[buf]))
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   COPY_4UBV(ctx->Color.ColorMask[buf], tmp);
-
-   if (ctx->Driver.ColorMaskIndexed)
-      ctx->Driver.ColorMaskIndexed(ctx, buf, red, green, blue, alpha);
-}
-
-
-extern void GLAPIENTRY
-_mesa_ClampColorARB(GLenum target, GLenum clamp)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (clamp != GL_TRUE && clamp != GL_FALSE && clamp != GL_FIXED_ONLY_ARB) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(clamp)");
-      return;
-   }
-
-   switch (target) {
-   case GL_CLAMP_VERTEX_COLOR_ARB:
-      ctx->Light.ClampVertexColor = clamp;
-      break;
-   case GL_CLAMP_FRAGMENT_COLOR_ARB:
-      ctx->Color.ClampFragmentColor = clamp;
-      break;
-   case GL_CLAMP_READ_COLOR_ARB:
-      ctx->Color.ClampReadColor = clamp;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(target)");
-      return;
-   }
-}
-
-
-
-
-/**********************************************************************/
-/** \name Initialization */
-/*@{*/
-
-/**
- * Initialization of the context's Color attribute group.
- *
- * \param ctx GL context.
- *
- * Initializes the related fields in the context color attribute group,
- * __struct gl_contextRec::Color.
- */
-void _mesa_init_color( struct gl_context * ctx )
-{
-   GLuint i;
-
-   /* Color buffer group */
-   ctx->Color.IndexMask = ~0u;
-   memset(ctx->Color.ColorMask, 0xff, sizeof(ctx->Color.ColorMask));
-   ctx->Color.ClearIndex = 0;
-   ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 );
-   ctx->Color.AlphaEnabled = GL_FALSE;
-   ctx->Color.AlphaFunc = GL_ALWAYS;
-   ctx->Color.AlphaRef = 0;
-   ctx->Color.BlendEnabled = 0x0;
-   for (i = 0; i < Elements(ctx->Color.Blend); i++) {
-      ctx->Color.Blend[i].SrcRGB = GL_ONE;
-      ctx->Color.Blend[i].DstRGB = GL_ZERO;
-      ctx->Color.Blend[i].SrcA = GL_ONE;
-      ctx->Color.Blend[i].DstA = GL_ZERO;
-      ctx->Color.Blend[i].EquationRGB = GL_FUNC_ADD;
-      ctx->Color.Blend[i].EquationA = GL_FUNC_ADD;
-   }
-   ASSIGN_4V( ctx->Color.BlendColor, 0.0, 0.0, 0.0, 0.0 );
-   ctx->Color.IndexLogicOpEnabled = GL_FALSE;
-   ctx->Color.ColorLogicOpEnabled = GL_FALSE;
-   ctx->Color._LogicOpEnabled = GL_FALSE;
-   ctx->Color.LogicOp = GL_COPY;
-   ctx->Color.DitherFlag = GL_TRUE;
-
-   if (ctx->Visual.doubleBufferMode) {
-      ctx->Color.DrawBuffer[0] = GL_BACK;
-   }
-   else {
-      ctx->Color.DrawBuffer[0] = GL_FRONT;
-   }
-
-   ctx->Color.ClampFragmentColor = GL_FIXED_ONLY_ARB;
-   ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB;
-}
-
-/*@}*/
+/**

+ * \file blend.c

+ * Blending operations.

+ */

+

+/*

+ * Mesa 3-D graphics library

+ * Version:  6.5.1

+ *

+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+

+#include "glheader.h"

+#include "blend.h"

+#include "context.h"

+#include "enums.h"

+#include "macros.h"

+#include "mtypes.h"

+

+

+

+/**

+ * Check if given blend source factor is legal.

+ * \return GL_TRUE if legal, GL_FALSE otherwise.

+ */

+static GLboolean

+legal_src_factor(const struct gl_context *ctx, GLenum factor)

+{

+   switch (factor) {

+   case GL_SRC_COLOR:

+   case GL_ONE_MINUS_SRC_COLOR:

+      return ctx->Extensions.NV_blend_square;

+   case GL_ZERO:

+   case GL_ONE:

+   case GL_DST_COLOR:

+   case GL_ONE_MINUS_DST_COLOR:

+   case GL_SRC_ALPHA:

+   case GL_ONE_MINUS_SRC_ALPHA:

+   case GL_DST_ALPHA:

+   case GL_ONE_MINUS_DST_ALPHA:

+   case GL_SRC_ALPHA_SATURATE:

+   case GL_CONSTANT_COLOR:

+   case GL_ONE_MINUS_CONSTANT_COLOR:

+   case GL_CONSTANT_ALPHA:

+   case GL_ONE_MINUS_CONSTANT_ALPHA:

+      return GL_TRUE;

+   default:

+      return GL_FALSE;

+   }

+}

+

+

+/**

+ * Check if given blend destination factor is legal.

+ * \return GL_TRUE if legal, GL_FALSE otherwise.

+ */

+static GLboolean

+legal_dst_factor(const struct gl_context *ctx, GLenum factor)

+{

+   switch (factor) {

+   case GL_DST_COLOR:

+   case GL_ONE_MINUS_DST_COLOR:

+      return ctx->Extensions.NV_blend_square;

+   case GL_ZERO:

+   case GL_ONE:

+   case GL_SRC_COLOR:

+   case GL_ONE_MINUS_SRC_COLOR:

+   case GL_SRC_ALPHA:

+   case GL_ONE_MINUS_SRC_ALPHA:

+   case GL_DST_ALPHA:

+   case GL_ONE_MINUS_DST_ALPHA:

+   case GL_CONSTANT_COLOR:

+   case GL_ONE_MINUS_CONSTANT_COLOR:

+   case GL_CONSTANT_ALPHA:

+   case GL_ONE_MINUS_CONSTANT_ALPHA:

+      return GL_TRUE;

+   default:

+      return GL_FALSE;

+   }

+}

+

+

+/**

+ * Check if src/dest RGB/A blend factors are legal.  If not generate

+ * a GL error.

+ * \return GL_TRUE if factors are legal, GL_FALSE otherwise.

+ */

+static GLboolean

+validate_blend_factors(struct gl_context *ctx, const char *func,

+                       GLenum sfactorRGB, GLenum dfactorRGB,

+                       GLenum sfactorA, GLenum dfactorA)

+{

+   if (!legal_src_factor(ctx, sfactorRGB)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "%s(sfactorRGB = %s)", func,

+                  _mesa_lookup_enum_by_nr(sfactorRGB));

+      return GL_FALSE;

+   }

+

+   if (!legal_dst_factor(ctx, dfactorRGB)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "%s(dfactorRGB = %s)", func,

+                  _mesa_lookup_enum_by_nr(dfactorRGB));

+      return GL_FALSE;

+   }

+

+   if (sfactorA != sfactorRGB && !legal_src_factor(ctx, sfactorA)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "%s(sfactorA = %s)", func,

+                  _mesa_lookup_enum_by_nr(sfactorA));

+      return GL_FALSE;

+   }

+

+   if (dfactorA != dfactorRGB && !legal_dst_factor(ctx, dfactorA)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "%s(dfactorA = %s)", func,

+                  _mesa_lookup_enum_by_nr(dfactorA));

+      return GL_FALSE;

+   }

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Specify the blending operation.

+ *

+ * \param sfactor source factor operator.

+ * \param dfactor destination factor operator.

+ *

+ * \sa glBlendFunc, glBlendFuncSeparateEXT

+ */

+void GLAPIENTRY

+_mesa_BlendFunc( GLenum sfactor, GLenum dfactor )

+{

+   _mesa_BlendFuncSeparateEXT(sfactor, dfactor, sfactor, dfactor);

+}

+

+

+/**

+ * Set the separate blend source/dest factors for all draw buffers.

+ *

+ * \param sfactorRGB RGB source factor operator.

+ * \param dfactorRGB RGB destination factor operator.

+ * \param sfactorA alpha source factor operator.

+ * \param dfactorA alpha destination factor operator.

+ */

+void GLAPIENTRY

+_mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB,

+                            GLenum sfactorA, GLenum dfactorA )

+{

+   GLuint buf, numBuffers;

+   GLboolean changed;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBlendFuncSeparate %s %s %s %s\n",

+                  _mesa_lookup_enum_by_nr(sfactorRGB),

+                  _mesa_lookup_enum_by_nr(dfactorRGB),

+                  _mesa_lookup_enum_by_nr(sfactorA),

+                  _mesa_lookup_enum_by_nr(dfactorA));

+

+   if (!validate_blend_factors(ctx, "glBlendFuncSeparate",

+                               sfactorRGB, dfactorRGB,

+                               sfactorA, dfactorA)) {

+      return;

+   }

+

+   numBuffers = ctx->Extensions.ARB_draw_buffers_blend

+      ? ctx->Const.MaxDrawBuffers : 1;

+

+   changed = GL_FALSE;

+   for (buf = 0; buf < numBuffers; buf++) {

+      if (ctx->Color.Blend[buf].SrcRGB != sfactorRGB ||

+          ctx->Color.Blend[buf].DstRGB != dfactorRGB ||

+          ctx->Color.Blend[buf].SrcA != sfactorA ||

+          ctx->Color.Blend[buf].DstA != dfactorA) {

+         changed = GL_TRUE;

+         break;

+      }

+   }

+   if (!changed)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+

+   for (buf = 0; buf < numBuffers; buf++) {

+      ctx->Color.Blend[buf].SrcRGB = sfactorRGB;

+      ctx->Color.Blend[buf].DstRGB = dfactorRGB;

+      ctx->Color.Blend[buf].SrcA = sfactorA;

+      ctx->Color.Blend[buf].DstA = dfactorA;

+   }

+   ctx->Color._BlendFuncPerBuffer = GL_FALSE;

+

+   if (ctx->Driver.BlendFuncSeparate) {

+      ctx->Driver.BlendFuncSeparate(ctx, sfactorRGB, dfactorRGB,

+                                    sfactorA, dfactorA);

+   }

+}

+

+

+#if _HAVE_FULL_GL

+

+

+/**

+ * Set blend source/dest factors for one color buffer/target.

+ */

+void GLAPIENTRY

+_mesa_BlendFunci(GLuint buf, GLenum sfactor, GLenum dfactor)

+{

+   _mesa_BlendFuncSeparatei(buf, sfactor, dfactor, sfactor, dfactor);

+}

+

+

+/**

+ * Set separate blend source/dest factors for one color buffer/target.

+ */

+void GLAPIENTRY

+_mesa_BlendFuncSeparatei(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,

+                         GLenum sfactorA, GLenum dfactorA)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (!ctx->Extensions.ARB_draw_buffers_blend) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glBlendFunc[Separate]i()");

+      return;

+   }

+

+   if (buf >= ctx->Const.MaxDrawBuffers) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)",

+                  buf);

+      return;

+   }

+

+   if (!validate_blend_factors(ctx, "glBlendFuncSeparatei",

+                               sfactorRGB, dfactorRGB,

+                               sfactorA, dfactorA)) {

+      return;

+   }

+

+   if (ctx->Color.Blend[buf].SrcRGB == sfactorRGB &&

+       ctx->Color.Blend[buf].DstRGB == dfactorRGB &&

+       ctx->Color.Blend[buf].SrcA == sfactorA &&

+       ctx->Color.Blend[buf].DstA == dfactorA)

+      return; /* no change */

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+

+   ctx->Color.Blend[buf].SrcRGB = sfactorRGB;

+   ctx->Color.Blend[buf].DstRGB = dfactorRGB;

+   ctx->Color.Blend[buf].SrcA = sfactorA;

+   ctx->Color.Blend[buf].DstA = dfactorA;

+   ctx->Color._BlendFuncPerBuffer = GL_TRUE;

+

+   if (ctx->Driver.BlendFuncSeparatei) {

+      ctx->Driver.BlendFuncSeparatei(ctx, buf, sfactorRGB, dfactorRGB,

+                                     sfactorA, dfactorA);

+   }

+}

+

+

+/**

+ * Check if given blend equation is legal.

+ * \return GL_TRUE if legal, GL_FALSE otherwise.

+ */

+static GLboolean

+legal_blend_equation(const struct gl_context *ctx,

+                     GLenum mode, GLboolean is_separate)

+{

+   switch (mode) {

+   case GL_FUNC_ADD:

+      return GL_TRUE;

+   case GL_MIN:

+   case GL_MAX:

+      return ctx->Extensions.EXT_blend_minmax;

+   case GL_LOGIC_OP:

+      /* glBlendEquationSeparate cannot take GL_LOGIC_OP as a parameter.

+       */

+      return ctx->Extensions.EXT_blend_logic_op && !is_separate;

+   case GL_FUNC_SUBTRACT:

+   case GL_FUNC_REVERSE_SUBTRACT:

+      return ctx->Extensions.EXT_blend_subtract;

+   default:

+      return GL_FALSE;

+   }

+}

+

+

+/* This is really an extension function! */

+void GLAPIENTRY

+_mesa_BlendEquation( GLenum mode )

+{

+   GLuint buf, numBuffers;

+   GLboolean changed;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBlendEquation(%s)\n",

+                  _mesa_lookup_enum_by_nr(mode));

+

+   if (!legal_blend_equation(ctx, mode, GL_FALSE)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquation");

+      return;

+   }

+

+   numBuffers = ctx->Extensions.ARB_draw_buffers_blend

+      ? ctx->Const.MaxDrawBuffers : 1;

+

+   changed = GL_FALSE;

+   for (buf = 0; buf < numBuffers; buf++) {

+      if (ctx->Color.Blend[buf].EquationRGB != mode ||

+          ctx->Color.Blend[buf].EquationA != mode) {

+         changed = GL_TRUE;

+         break;

+      }

+   }

+   if (!changed)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   for (buf = 0; buf < numBuffers; buf++) {

+      ctx->Color.Blend[buf].EquationRGB = mode;

+      ctx->Color.Blend[buf].EquationA = mode;

+   }

+   ctx->Color._BlendEquationPerBuffer = GL_FALSE;

+

+   if (ctx->Driver.BlendEquationSeparate)

+      (*ctx->Driver.BlendEquationSeparate)( ctx, mode, mode );

+}

+

+

+/**

+ * Set blend equation for one color buffer/target.

+ */

+void GLAPIENTRY

+_mesa_BlendEquationi(GLuint buf, GLenum mode)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBlendEquationi(%u, %s)\n",

+                  buf, _mesa_lookup_enum_by_nr(mode));

+

+   if (buf >= ctx->Const.MaxDrawBuffers) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)",

+                  buf);

+      return;

+   }

+

+   if (!legal_blend_equation(ctx, mode, GL_FALSE)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationi");

+      return;

+   }

+

+   if (ctx->Color.Blend[buf].EquationRGB == mode &&

+       ctx->Color.Blend[buf].EquationA == mode)

+      return;  /* no change */

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   ctx->Color.Blend[buf].EquationRGB = mode;

+   ctx->Color.Blend[buf].EquationA = mode;

+   ctx->Color._BlendEquationPerBuffer = GL_TRUE;

+

+   if (ctx->Driver.BlendEquationSeparatei)

+      ctx->Driver.BlendEquationSeparatei(ctx, buf, mode, mode);

+}

+

+

+void GLAPIENTRY

+_mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA )

+{

+   GLuint buf, numBuffers;

+   GLboolean changed;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBlendEquationSeparateEXT(%s %s)\n",

+                  _mesa_lookup_enum_by_nr(modeRGB),

+                  _mesa_lookup_enum_by_nr(modeA));

+

+   if ( (modeRGB != modeA) && !ctx->Extensions.EXT_blend_equation_separate ) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+		  "glBlendEquationSeparateEXT not supported by driver");

+      return;

+   }

+

+   if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeRGB)");

+      return;

+   }

+

+   if (!legal_blend_equation(ctx, modeA, GL_TRUE)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeA)");

+      return;

+   }

+

+   numBuffers = ctx->Extensions.ARB_draw_buffers_blend

+      ? ctx->Const.MaxDrawBuffers : 1;

+

+   changed = GL_FALSE;

+   for (buf = 0; buf < numBuffers; buf++) {

+      if (ctx->Color.Blend[buf].EquationRGB != modeRGB ||

+          ctx->Color.Blend[buf].EquationA != modeA) {

+         changed = GL_TRUE;

+         break;

+      }

+   }

+   if (!changed)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   for (buf = 0; buf < numBuffers; buf++) {

+      ctx->Color.Blend[buf].EquationRGB = modeRGB;

+      ctx->Color.Blend[buf].EquationA = modeA;

+   }

+   ctx->Color._BlendEquationPerBuffer = GL_FALSE;

+

+   if (ctx->Driver.BlendEquationSeparate)

+      ctx->Driver.BlendEquationSeparate(ctx, modeRGB, modeA);

+}

+

+

+/**

+ * Set separate blend equations for one color buffer/target.

+ */

+void

+_mesa_BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeA)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBlendEquationSeparatei(%u, %s %s)\n", buf,

+                  _mesa_lookup_enum_by_nr(modeRGB),

+                  _mesa_lookup_enum_by_nr(modeA));

+

+   if (buf >= ctx->Const.MaxDrawBuffers) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glBlendEquationSeparatei(buffer=%u)",

+                  buf);

+      return;

+   }

+

+   if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeRGB)");

+      return;

+   }

+

+   if (!legal_blend_equation(ctx, modeA, GL_TRUE)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeA)");

+      return;

+   }

+

+   if (ctx->Color.Blend[buf].EquationRGB == modeRGB &&

+       ctx->Color.Blend[buf].EquationA == modeA)

+      return;  /* no change */

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   ctx->Color.Blend[buf].EquationRGB = modeRGB;

+   ctx->Color.Blend[buf].EquationA = modeA;

+   ctx->Color._BlendEquationPerBuffer = GL_TRUE;

+

+   if (ctx->Driver.BlendEquationSeparatei)

+      ctx->Driver.BlendEquationSeparatei(ctx, buf, modeRGB, modeA);

+}

+

+

+

+#endif /* _HAVE_FULL_GL */

+

+

+/**

+ * Set the blending color.

+ *

+ * \param red red color component.

+ * \param green green color component.

+ * \param blue blue color component.

+ * \param alpha alpha color component.

+ *

+ * \sa glBlendColor().

+ *

+ * Clamps the parameters and updates gl_colorbuffer_attrib::BlendColor.  On a

+ * change, flushes the vertices and notifies the driver via

+ * dd_function_table::BlendColor callback.

+ */

+void GLAPIENTRY

+_mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )

+{

+   GLfloat tmp[4];

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   tmp[0] = CLAMP( red,   0.0F, 1.0F );

+   tmp[1] = CLAMP( green, 0.0F, 1.0F );

+   tmp[2] = CLAMP( blue,  0.0F, 1.0F );

+   tmp[3] = CLAMP( alpha, 0.0F, 1.0F );

+

+   if (TEST_EQ_4V(tmp, ctx->Color.BlendColor))

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   COPY_4FV( ctx->Color.BlendColor, tmp );

+

+   if (ctx->Driver.BlendColor)

+      (*ctx->Driver.BlendColor)(ctx, tmp);

+}

+

+

+/**

+ * Specify the alpha test function.

+ *

+ * \param func alpha comparison function.

+ * \param ref reference value.

+ *

+ * Verifies the parameters and updates gl_colorbuffer_attrib. 

+ * On a change, flushes the vertices and notifies the driver via

+ * dd_function_table::AlphaFunc callback.

+ */

+void GLAPIENTRY

+_mesa_AlphaFunc( GLenum func, GLclampf ref )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glAlphaFunc(%s, %f)\n",

+                  _mesa_lookup_enum_by_nr(func), ref);

+

+   switch (func) {

+   case GL_NEVER:

+   case GL_LESS:

+   case GL_EQUAL:

+   case GL_LEQUAL:

+   case GL_GREATER:

+   case GL_NOTEQUAL:

+   case GL_GEQUAL:

+   case GL_ALWAYS:

+      ref = CLAMP(ref, 0.0F, 1.0F);

+

+      if (ctx->Color.AlphaFunc == func && ctx->Color.AlphaRef == ref)

+         return; /* no change */

+

+      FLUSH_VERTICES(ctx, _NEW_COLOR);

+      ctx->Color.AlphaFunc = func;

+      ctx->Color.AlphaRef = ref;

+

+      if (ctx->Driver.AlphaFunc)

+         ctx->Driver.AlphaFunc(ctx, func, ref);

+      return;

+

+   default:

+      _mesa_error( ctx, GL_INVALID_ENUM, "glAlphaFunc(func)" );

+      return;

+   }

+}

+

+

+/**

+ * Specify a logic pixel operation for color index rendering.

+ *

+ * \param opcode operation.

+ *

+ * Verifies that \p opcode is a valid enum and updates

+gl_colorbuffer_attrib::LogicOp.

+ * On a change, flushes the vertices and notifies the driver via the

+ * dd_function_table::LogicOpcode callback.

+ */

+void GLAPIENTRY

+_mesa_LogicOp( GLenum opcode )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glLogicOp(%s)\n", _mesa_lookup_enum_by_nr(opcode));

+

+   switch (opcode) {

+      case GL_CLEAR:

+      case GL_SET:

+      case GL_COPY:

+      case GL_COPY_INVERTED:

+      case GL_NOOP:

+      case GL_INVERT:

+      case GL_AND:

+      case GL_NAND:

+      case GL_OR:

+      case GL_NOR:

+      case GL_XOR:

+      case GL_EQUIV:

+      case GL_AND_REVERSE:

+      case GL_AND_INVERTED:

+      case GL_OR_REVERSE:

+      case GL_OR_INVERTED:

+	 break;

+      default:

+         _mesa_error( ctx, GL_INVALID_ENUM, "glLogicOp" );

+	 return;

+   }

+

+   if (ctx->Color.LogicOp == opcode)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   ctx->Color.LogicOp = opcode;

+

+   if (ctx->Driver.LogicOpcode)

+      ctx->Driver.LogicOpcode( ctx, opcode );

+}

+

+#if _HAVE_FULL_GL

+void GLAPIENTRY

+_mesa_IndexMask( GLuint mask )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (ctx->Color.IndexMask == mask)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   ctx->Color.IndexMask = mask;

+}

+#endif

+

+

+/**

+ * Enable or disable writing of frame buffer color components.

+ *

+ * \param red whether to mask writing of the red color component.

+ * \param green whether to mask writing of the green color component.

+ * \param blue whether to mask writing of the blue color component.

+ * \param alpha whether to mask writing of the alpha color component.

+ *

+ * \sa glColorMask().

+ *

+ * Sets the appropriate value of gl_colorbuffer_attrib::ColorMask.  On a

+ * change, flushes the vertices and notifies the driver via the

+ * dd_function_table::ColorMask callback.

+ */

+void GLAPIENTRY

+_mesa_ColorMask( GLboolean red, GLboolean green,

+                 GLboolean blue, GLboolean alpha )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLubyte tmp[4];

+   GLuint i;

+   GLboolean flushed;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glColorMask(%d, %d, %d, %d)\n",

+                  red, green, blue, alpha);

+

+   /* Shouldn't have any information about channel depth in core mesa

+    * -- should probably store these as the native booleans:

+    */

+   tmp[RCOMP] = red    ? 0xff : 0x0;

+   tmp[GCOMP] = green  ? 0xff : 0x0;

+   tmp[BCOMP] = blue   ? 0xff : 0x0;

+   tmp[ACOMP] = alpha  ? 0xff : 0x0;

+

+   flushed = GL_FALSE;

+   for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {

+      if (!TEST_EQ_4V(tmp, ctx->Color.ColorMask[i])) {

+         if (!flushed) {

+            FLUSH_VERTICES(ctx, _NEW_COLOR);

+         }

+         flushed = GL_TRUE;

+         COPY_4UBV(ctx->Color.ColorMask[i], tmp);

+      }

+   }

+

+   if (ctx->Driver.ColorMask)

+      ctx->Driver.ColorMask( ctx, red, green, blue, alpha );

+}

+

+

+/**

+ * For GL_EXT_draw_buffers2 and GL3

+ */

+void GLAPIENTRY

+_mesa_ColorMaskIndexed( GLuint buf, GLboolean red, GLboolean green,

+                        GLboolean blue, GLboolean alpha )

+{

+   GLubyte tmp[4];

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glColorMaskIndexed %u %d %d %d %d\n",

+                  buf, red, green, blue, alpha);

+

+   if (buf >= ctx->Const.MaxDrawBuffers) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glColorMaskIndexed(buf=%u)", buf);

+      return;

+   }

+

+   /* Shouldn't have any information about channel depth in core mesa

+    * -- should probably store these as the native booleans:

+    */

+   tmp[RCOMP] = red    ? 0xff : 0x0;

+   tmp[GCOMP] = green  ? 0xff : 0x0;

+   tmp[BCOMP] = blue   ? 0xff : 0x0;

+   tmp[ACOMP] = alpha  ? 0xff : 0x0;

+

+   if (TEST_EQ_4V(tmp, ctx->Color.ColorMask[buf]))

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_COLOR);

+   COPY_4UBV(ctx->Color.ColorMask[buf], tmp);

+

+   if (ctx->Driver.ColorMaskIndexed)

+      ctx->Driver.ColorMaskIndexed(ctx, buf, red, green, blue, alpha);

+}

+

+

+extern void GLAPIENTRY

+_mesa_ClampColorARB(GLenum target, GLenum clamp)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (clamp != GL_TRUE && clamp != GL_FALSE && clamp != GL_FIXED_ONLY_ARB) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(clamp)");

+      return;

+   }

+

+   switch (target) {

+   case GL_CLAMP_VERTEX_COLOR_ARB:

+      ctx->Light.ClampVertexColor = clamp;

+      break;

+   case GL_CLAMP_FRAGMENT_COLOR_ARB:

+      ctx->Color.ClampFragmentColor = clamp;

+      break;

+   case GL_CLAMP_READ_COLOR_ARB:

+      ctx->Color.ClampReadColor = clamp;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(target)");

+      return;

+   }

+}

+

+

+

+

+/**********************************************************************/

+/** \name Initialization */

+/*@{*/

+

+/**

+ * Initialization of the context's Color attribute group.

+ *

+ * \param ctx GL context.

+ *

+ * Initializes the related fields in the context color attribute group,

+ * __struct gl_contextRec::Color.

+ */

+void _mesa_init_color( struct gl_context * ctx )

+{

+   GLuint i;

+

+   /* Color buffer group */

+   ctx->Color.IndexMask = ~0u;

+   memset(ctx->Color.ColorMask, 0xff, sizeof(ctx->Color.ColorMask));

+   ctx->Color.ClearIndex = 0;

+   ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 );

+   ctx->Color.AlphaEnabled = GL_FALSE;

+   ctx->Color.AlphaFunc = GL_ALWAYS;

+   ctx->Color.AlphaRef = 0;

+   ctx->Color.BlendEnabled = 0x0;

+   for (i = 0; i < Elements(ctx->Color.Blend); i++) {

+      ctx->Color.Blend[i].SrcRGB = GL_ONE;

+      ctx->Color.Blend[i].DstRGB = GL_ZERO;

+      ctx->Color.Blend[i].SrcA = GL_ONE;

+      ctx->Color.Blend[i].DstA = GL_ZERO;

+      ctx->Color.Blend[i].EquationRGB = GL_FUNC_ADD;

+      ctx->Color.Blend[i].EquationA = GL_FUNC_ADD;

+   }

+   ASSIGN_4V( ctx->Color.BlendColor, 0.0, 0.0, 0.0, 0.0 );

+   ctx->Color.IndexLogicOpEnabled = GL_FALSE;

+   ctx->Color.ColorLogicOpEnabled = GL_FALSE;

+   ctx->Color._LogicOpEnabled = GL_FALSE;

+   ctx->Color.LogicOp = GL_COPY;

+   ctx->Color.DitherFlag = GL_TRUE;

+

+   if (ctx->Visual.doubleBufferMode) {

+      ctx->Color.DrawBuffer[0] = GL_BACK;

+   }

+   else {

+      ctx->Color.DrawBuffer[0] = GL_FRONT;

+   }

+

+   ctx->Color.ClampFragmentColor = GL_FIXED_ONLY_ARB;

+   ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB;

+}

+

+/*@}*/

diff --git a/mesalib/src/mesa/main/bufferobj.c b/mesalib/src/mesa/main/bufferobj.c
index 75afae0ad..2de4602b8 100644
--- a/mesalib/src/mesa/main/bufferobj.c
+++ b/mesalib/src/mesa/main/bufferobj.c
@@ -1,2158 +1,2158 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.6
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file bufferobj.c
- * \brief Functions for the GL_ARB_vertex/pixel_buffer_object extensions.
- * \author Brian Paul, Ian Romanick
- */
-
-
-#include "glheader.h"
-#include "enums.h"
-#include "hash.h"
-#include "imports.h"
-#include "image.h"
-#include "context.h"
-#include "bufferobj.h"
-#include "fbobject.h"
-#include "mfeatures.h"
-#include "mtypes.h"
-#include "texobj.h"
-
-
-/* Debug flags */
-/*#define VBO_DEBUG*/
-/*#define BOUNDS_CHECK*/
-
-
-#if FEATURE_OES_mapbuffer
-#define DEFAULT_ACCESS GL_MAP_WRITE_BIT
-#else
-#define DEFAULT_ACCESS (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)
-#endif
-
-
-/**
- * Used as a placeholder for buffer objects between glGenBuffers() and
- * glBindBuffer() so that glIsBuffer() can work correctly.
- */
-static struct gl_buffer_object DummyBufferObject;
-
-
-/**
- * Return pointer to address of a buffer object target.
- * \param ctx  the GL context
- * \param target  the buffer object target to be retrieved.
- * \return   pointer to pointer to the buffer object bound to \c target in the
- *           specified context or \c NULL if \c target is invalid.
- */
-static INLINE struct gl_buffer_object **
-get_buffer_target(struct gl_context *ctx, GLenum target)
-{
-   switch (target) {
-   case GL_ARRAY_BUFFER_ARB:
-      return &ctx->Array.ArrayBufferObj;
-   case GL_ELEMENT_ARRAY_BUFFER_ARB:
-      return &ctx->Array.ElementArrayBufferObj;
-   case GL_PIXEL_PACK_BUFFER_EXT:
-      return &ctx->Pack.BufferObj;
-   case GL_PIXEL_UNPACK_BUFFER_EXT:
-      return &ctx->Unpack.BufferObj;
-   case GL_COPY_READ_BUFFER:
-      return &ctx->CopyReadBuffer;
-   case GL_COPY_WRITE_BUFFER:
-      return &ctx->CopyWriteBuffer;
-#if FEATURE_EXT_transform_feedback
-   case GL_TRANSFORM_FEEDBACK_BUFFER:
-      if (ctx->Extensions.EXT_transform_feedback) {
-         return &ctx->TransformFeedback.CurrentBuffer;
-      }
-      break;
-#endif
-   default:
-      return NULL;
-   }
-   return NULL;
-}
-
-
-/**
- * Get the buffer object bound to the specified target in a GL context.
- * \param ctx  the GL context
- * \param target  the buffer object target to be retrieved.
- * \return   pointer to the buffer object bound to \c target in the
- *           specified context or \c NULL if \c target is invalid.
- */
-static INLINE struct gl_buffer_object *
-get_buffer(struct gl_context *ctx, GLenum target)
-{
-   struct gl_buffer_object **bufObj = get_buffer_target(ctx, target);
-   if (bufObj)
-      return *bufObj;
-   return NULL;
-}
-
-
-/**
- * Convert a GLbitfield describing the mapped buffer access flags
- * into one of GL_READ_WRITE, GL_READ_ONLY, or GL_WRITE_ONLY.
- */
-static GLenum
-simplified_access_mode(GLbitfield access)
-{
-   const GLbitfield rwFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
-   if ((access & rwFlags) == rwFlags)
-      return GL_READ_WRITE;
-   if ((access & GL_MAP_READ_BIT) == GL_MAP_READ_BIT)
-      return GL_READ_ONLY;
-   if ((access & GL_MAP_WRITE_BIT) == GL_MAP_WRITE_BIT)
-      return GL_WRITE_ONLY;
-   return GL_READ_WRITE; /* this should never happen, but no big deal */
-}
-
-
-/**
- * Tests the subdata range parameters and sets the GL error code for
- * \c glBufferSubDataARB and \c glGetBufferSubDataARB.
- *
- * \param ctx     GL context.
- * \param target  Buffer object target on which to operate.
- * \param offset  Offset of the first byte of the subdata range.
- * \param size    Size, in bytes, of the subdata range.
- * \param caller  Name of calling function for recording errors.
- * \return   A pointer to the buffer object bound to \c target in the
- *           specified context or \c NULL if any of the parameter or state
- *           conditions for \c glBufferSubDataARB or \c glGetBufferSubDataARB
- *           are invalid.
- *
- * \sa glBufferSubDataARB, glGetBufferSubDataARB
- */
-static struct gl_buffer_object *
-buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target, 
-                                  GLintptrARB offset, GLsizeiptrARB size,
-                                  const char *caller )
-{
-   struct gl_buffer_object *bufObj;
-
-   if (size < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(size < 0)", caller);
-      return NULL;
-   }
-
-   if (offset < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(offset < 0)", caller);
-      return NULL;
-   }
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", caller);
-      return NULL;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);
-      return NULL;
-   }
-   if (offset + size > bufObj->Size) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-		  "%s(size + offset > buffer size)", caller);
-      return NULL;
-   }
-   if (_mesa_bufferobj_mapped(bufObj)) {
-      /* Buffer is currently mapped */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);
-      return NULL;
-   }
-
-   return bufObj;
-}
-
-
-/**
- * Allocate and initialize a new buffer object.
- * 
- * Default callback for the \c dd_function_table::NewBufferObject() hook.
- */
-static struct gl_buffer_object *
-_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target )
-{
-   struct gl_buffer_object *obj;
-
-   (void) ctx;
-
-   obj = MALLOC_STRUCT(gl_buffer_object);
-   _mesa_initialize_buffer_object(obj, name, target);
-   return obj;
-}
-
-
-/**
- * Delete a buffer object.
- * 
- * Default callback for the \c dd_function_table::DeleteBuffer() hook.
- */
-static void
-_mesa_delete_buffer_object( struct gl_context *ctx, struct gl_buffer_object *bufObj )
-{
-   (void) ctx;
-
-   if (bufObj->Data)
-      free(bufObj->Data);
-
-   /* assign strange values here to help w/ debugging */
-   bufObj->RefCount = -1000;
-   bufObj->Name = ~0;
-
-   _glthread_DESTROY_MUTEX(bufObj->Mutex);
-   free(bufObj);
-}
-
-
-
-/**
- * Set ptr to bufObj w/ reference counting.
- */
-void
-_mesa_reference_buffer_object(struct gl_context *ctx,
-                              struct gl_buffer_object **ptr,
-                              struct gl_buffer_object *bufObj)
-{
-   if (*ptr == bufObj)
-      return;
-
-   if (*ptr) {
-      /* Unreference the old buffer */
-      GLboolean deleteFlag = GL_FALSE;
-      struct gl_buffer_object *oldObj = *ptr;
-
-      _glthread_LOCK_MUTEX(oldObj->Mutex);
-      ASSERT(oldObj->RefCount > 0);
-      oldObj->RefCount--;
-#if 0
-      printf("BufferObj %p %d DECR to %d\n",
-             (void *) oldObj, oldObj->Name, oldObj->RefCount);
-#endif
-      deleteFlag = (oldObj->RefCount == 0);
-      _glthread_UNLOCK_MUTEX(oldObj->Mutex);
-
-      if (deleteFlag) {
-
-         /* some sanity checking: don't delete a buffer still in use */
-#if 0
-         /* unfortunately, these tests are invalid during context tear-down */
-	 ASSERT(ctx->Array.ArrayBufferObj != bufObj);
-	 ASSERT(ctx->Array.ElementArrayBufferObj != bufObj);
-	 ASSERT(ctx->Array.ArrayObj->Vertex.BufferObj != bufObj);
-#endif
-
-	 ASSERT(ctx->Driver.DeleteBuffer);
-         ctx->Driver.DeleteBuffer(ctx, oldObj);
-      }
-
-      *ptr = NULL;
-   }
-   ASSERT(!*ptr);
-
-   if (bufObj) {
-      /* reference new buffer */
-      _glthread_LOCK_MUTEX(bufObj->Mutex);
-      if (bufObj->RefCount == 0) {
-         /* this buffer's being deleted (look just above) */
-         /* Not sure this can every really happen.  Warn if it does. */
-         _mesa_problem(NULL, "referencing deleted buffer object");
-         *ptr = NULL;
-      }
-      else {
-         bufObj->RefCount++;
-#if 0
-         printf("BufferObj %p %d INCR to %d\n",
-                (void *) bufObj, bufObj->Name, bufObj->RefCount);
-#endif
-         *ptr = bufObj;
-      }
-      _glthread_UNLOCK_MUTEX(bufObj->Mutex);
-   }
-}
-
-
-/**
- * Initialize a buffer object to default values.
- */
-void
-_mesa_initialize_buffer_object( struct gl_buffer_object *obj,
-				GLuint name, GLenum target )
-{
-   (void) target;
-
-   memset(obj, 0, sizeof(struct gl_buffer_object));
-   _glthread_INIT_MUTEX(obj->Mutex);
-   obj->RefCount = 1;
-   obj->Name = name;
-   obj->Usage = GL_STATIC_DRAW_ARB;
-   obj->AccessFlags = DEFAULT_ACCESS;
-}
-
-
-/**
- * Allocate space for and store data in a buffer object.  Any data that was
- * previously stored in the buffer object is lost.  If \c data is \c NULL,
- * memory will be allocated, but no copy will occur.
- *
- * This is the default callback for \c dd_function_table::BufferData()
- * Note that all GL error checking will have been done already.
- *
- * \param ctx     GL context.
- * \param target  Buffer object target on which to operate.
- * \param size    Size, in bytes, of the new data store.
- * \param data    Pointer to the data to store in the buffer object.  This
- *                pointer may be \c NULL.
- * \param usage   Hints about how the data will be used.
- * \param bufObj  Object to be used.
- *
- * \return GL_TRUE for success, GL_FALSE for failure
- * \sa glBufferDataARB, dd_function_table::BufferData.
- */
-static GLboolean
-_mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size,
-		   const GLvoid * data, GLenum usage,
-		   struct gl_buffer_object * bufObj )
-{
-   void * new_data;
-
-   (void) ctx; (void) target;
-
-   new_data = _mesa_realloc( bufObj->Data, bufObj->Size, size );
-   if (new_data) {
-      bufObj->Data = (GLubyte *) new_data;
-      bufObj->Size = size;
-      bufObj->Usage = usage;
-
-      if (data) {
-	 memcpy( bufObj->Data, data, size );
-      }
-
-      return GL_TRUE;
-   }
-   else {
-      return GL_FALSE;
-   }
-}
-
-
-/**
- * Replace data in a subrange of buffer object.  If the data range
- * specified by \c size + \c offset extends beyond the end of the buffer or
- * if \c data is \c NULL, no copy is performed.
- *
- * This is the default callback for \c dd_function_table::BufferSubData()
- * Note that all GL error checking will have been done already.
- *
- * \param ctx     GL context.
- * \param target  Buffer object target on which to operate.
- * \param offset  Offset of the first byte to be modified.
- * \param size    Size, in bytes, of the data range.
- * \param data    Pointer to the data to store in the buffer object.
- * \param bufObj  Object to be used.
- *
- * \sa glBufferSubDataARB, dd_function_table::BufferSubData.
- */
-static void
-_mesa_buffer_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset,
-		      GLsizeiptrARB size, const GLvoid * data,
-		      struct gl_buffer_object * bufObj )
-{
-   (void) ctx; (void) target;
-
-   /* this should have been caught in _mesa_BufferSubData() */
-   ASSERT(size + offset <= bufObj->Size);
-
-   if (bufObj->Data) {
-      memcpy( (GLubyte *) bufObj->Data + offset, data, size );
-   }
-}
-
-
-/**
- * Retrieve data from a subrange of buffer object.  If the data range
- * specified by \c size + \c offset extends beyond the end of the buffer or
- * if \c data is \c NULL, no copy is performed.
- *
- * This is the default callback for \c dd_function_table::GetBufferSubData()
- * Note that all GL error checking will have been done already.
- *
- * \param ctx     GL context.
- * \param target  Buffer object target on which to operate.
- * \param offset  Offset of the first byte to be fetched.
- * \param size    Size, in bytes, of the data range.
- * \param data    Destination for data
- * \param bufObj  Object to be used.
- *
- * \sa glBufferGetSubDataARB, dd_function_table::GetBufferSubData.
- */
-static void
-_mesa_buffer_get_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset,
-			  GLsizeiptrARB size, GLvoid * data,
-			  struct gl_buffer_object * bufObj )
-{
-   (void) ctx; (void) target;
-
-   if (bufObj->Data && ((GLsizeiptrARB) (size + offset) <= bufObj->Size)) {
-      memcpy( data, (GLubyte *) bufObj->Data + offset, size );
-   }
-}
-
-
-/**
- * Default callback for \c dd_function_tabel::MapBuffer().
- *
- * The function parameters will have been already tested for errors.
- *
- * \param ctx     GL context.
- * \param target  Buffer object target on which to operate.
- * \param access  Information about how the buffer will be accessed.
- * \param bufObj  Object to be mapped.
- * \return  A pointer to the object's internal data store that can be accessed
- *          by the processor
- *
- * \sa glMapBufferARB, dd_function_table::MapBuffer
- */
-static void *
-_mesa_buffer_map( struct gl_context *ctx, GLenum target, GLenum access,
-		  struct gl_buffer_object *bufObj )
-{
-   (void) ctx;
-   (void) target;
-   (void) access;
-   /* Just return a direct pointer to the data */
-   if (_mesa_bufferobj_mapped(bufObj)) {
-      /* already mapped! */
-      return NULL;
-   }
-   bufObj->Pointer = bufObj->Data;
-   bufObj->Length = bufObj->Size;
-   bufObj->Offset = 0;
-   return bufObj->Pointer;
-}
-
-
-/**
- * Default fallback for \c dd_function_table::MapBufferRange().
- * Called via glMapBufferRange().
- */
-static void *
-_mesa_buffer_map_range( struct gl_context *ctx, GLenum target, GLintptr offset,
-                        GLsizeiptr length, GLbitfield access,
-                        struct gl_buffer_object *bufObj )
-{
-   (void) ctx;
-   (void) target;
-   assert(!_mesa_bufferobj_mapped(bufObj));
-   /* Just return a direct pointer to the data */
-   bufObj->Pointer = bufObj->Data + offset;
-   bufObj->Length = length;
-   bufObj->Offset = offset;
-   bufObj->AccessFlags = access;
-   return bufObj->Pointer;
-}
-
-
-/**
- * Default fallback for \c dd_function_table::FlushMappedBufferRange().
- * Called via glFlushMappedBufferRange().
- */
-static void
-_mesa_buffer_flush_mapped_range( struct gl_context *ctx, GLenum target, 
-                                 GLintptr offset, GLsizeiptr length,
-                                 struct gl_buffer_object *obj )
-{
-   (void) ctx;
-   (void) target;
-   (void) offset;
-   (void) length;
-   (void) obj;
-   /* no-op */
-}
-
-
-/**
- * Default callback for \c dd_function_table::MapBuffer().
- *
- * The input parameters will have been already tested for errors.
- *
- * \sa glUnmapBufferARB, dd_function_table::UnmapBuffer
- */
-static GLboolean
-_mesa_buffer_unmap( struct gl_context *ctx, GLenum target,
-                    struct gl_buffer_object *bufObj )
-{
-   (void) ctx;
-   (void) target;
-   /* XXX we might assert here that bufObj->Pointer is non-null */
-   bufObj->Pointer = NULL;
-   bufObj->Length = 0;
-   bufObj->Offset = 0;
-   bufObj->AccessFlags = 0x0;
-   return GL_TRUE;
-}
-
-
-/**
- * Default fallback for \c dd_function_table::CopyBufferSubData().
- * Called via glCopyBuffserSubData().
- */
-static void
-_mesa_copy_buffer_subdata(struct gl_context *ctx,
-                          struct gl_buffer_object *src,
-                          struct gl_buffer_object *dst,
-                          GLintptr readOffset, GLintptr writeOffset,
-                          GLsizeiptr size)
-{
-   GLubyte *srcPtr, *dstPtr;
-
-   /* buffer should not already be mapped */
-   assert(!_mesa_bufferobj_mapped(src));
-   assert(!_mesa_bufferobj_mapped(dst));
-
-   srcPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_READ_BUFFER,
-                                              GL_READ_ONLY, src);
-   dstPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_WRITE_BUFFER,
-                                              GL_WRITE_ONLY, dst);
-
-   if (srcPtr && dstPtr)
-      memcpy(dstPtr + writeOffset, srcPtr + readOffset, size);
-
-   ctx->Driver.UnmapBuffer(ctx, GL_COPY_READ_BUFFER, src);
-   ctx->Driver.UnmapBuffer(ctx, GL_COPY_WRITE_BUFFER, dst);
-}
-
-
-
-/**
- * Initialize the state associated with buffer objects
- */
-void
-_mesa_init_buffer_objects( struct gl_context *ctx )
-{
-   memset(&DummyBufferObject, 0, sizeof(DummyBufferObject));
-   DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */
-
-   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj,
-                                 ctx->Shared->NullBufferObj);
-   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj,
-                                 ctx->Shared->NullBufferObj);
-
-   _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer,
-                                 ctx->Shared->NullBufferObj);
-   _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer,
-                                 ctx->Shared->NullBufferObj);
-}
-
-
-void
-_mesa_free_buffer_objects( struct gl_context *ctx )
-{
-   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL);
-   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL);
-
-   _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, NULL);
-   _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, NULL);
-}
-
-
-/**
- * Bind the specified target to buffer for the specified context.
- * Called by glBindBuffer() and other functions.
- */
-static void
-bind_buffer_object(struct gl_context *ctx, GLenum target, GLuint buffer)
-{
-   struct gl_buffer_object *oldBufObj;
-   struct gl_buffer_object *newBufObj = NULL;
-   struct gl_buffer_object **bindTarget = NULL;
-
-   bindTarget = get_buffer_target(ctx, target);
-   if (!bindTarget) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target 0x%x)", target);
-      return;
-   }
-
-   /* Get pointer to old buffer object (to be unbound) */
-   oldBufObj = *bindTarget;
-   if (oldBufObj && oldBufObj->Name == buffer)
-      return;   /* rebinding the same buffer object- no change */
-
-   /*
-    * Get pointer to new buffer object (newBufObj)
-    */
-   if (buffer == 0) {
-      /* The spec says there's not a buffer object named 0, but we use
-       * one internally because it simplifies things.
-       */
-      newBufObj = ctx->Shared->NullBufferObj;
-   }
-   else {
-      /* non-default buffer object */
-      newBufObj = _mesa_lookup_bufferobj(ctx, buffer);
-      if (!newBufObj || newBufObj == &DummyBufferObject) {
-         /* If this is a new buffer object id, or one which was generated but
-          * never used before, allocate a buffer object now.
-          */
-         ASSERT(ctx->Driver.NewBufferObject);
-         newBufObj = ctx->Driver.NewBufferObject(ctx, buffer, target);
-         if (!newBufObj) {
-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindBufferARB");
-            return;
-         }
-         _mesa_HashInsert(ctx->Shared->BufferObjects, buffer, newBufObj);
-      }
-   }
-   
-   /* bind new buffer */
-   _mesa_reference_buffer_object(ctx, bindTarget, newBufObj);
-
-   /* Pass BindBuffer call to device driver */
-   if (ctx->Driver.BindBuffer)
-      ctx->Driver.BindBuffer( ctx, target, newBufObj );
-}
-
-
-/**
- * Update the default buffer objects in the given context to reference those
- * specified in the shared state and release those referencing the old 
- * shared state.
- */
-void
-_mesa_update_default_objects_buffer_objects(struct gl_context *ctx)
-{
-   /* Bind the NullBufferObj to remove references to those
-    * in the shared context hash table.
-    */
-   bind_buffer_object( ctx, GL_ARRAY_BUFFER_ARB, 0);
-   bind_buffer_object( ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
-   bind_buffer_object( ctx, GL_PIXEL_PACK_BUFFER_ARB, 0);
-   bind_buffer_object( ctx, GL_PIXEL_UNPACK_BUFFER_ARB, 0);
-}
-
-
-/**
- * When we're about to read pixel data out of a PBO (via glDrawPixels,
- * glTexImage, etc) or write data into a PBO (via glReadPixels,
- * glGetTexImage, etc) we call this function to check that we're not
- * going to read out of bounds.
- *
- * XXX This would also be a convenient time to check that the PBO isn't
- * currently mapped.  Whoever calls this function should check for that.
- * Remember, we can't use a PBO when it's mapped!
- *
- * If we're not using a PBO, this is a no-op.
- *
- * \param width  width of image to read/write
- * \param height  height of image to read/write
- * \param depth  depth of image to read/write
- * \param format  format of image to read/write
- * \param type  datatype of image to read/write
- * \param ptr  the user-provided pointer/offset
- * \return GL_TRUE if the PBO access is OK, GL_FALSE if the access would
- *         go out of bounds.
- */
-GLboolean
-_mesa_validate_pbo_access(GLuint dimensions,
-                          const struct gl_pixelstore_attrib *pack,
-                          GLsizei width, GLsizei height, GLsizei depth,
-                          GLenum format, GLenum type, const GLvoid *ptr)
-{
-   GLvoid *start, *end;
-   const GLubyte *sizeAddr; /* buffer size, cast to a pointer */
-
-   if (!_mesa_is_bufferobj(pack->BufferObj))
-      return GL_TRUE;  /* no PBO, OK */
-
-   if (pack->BufferObj->Size == 0)
-      /* no buffer! */
-      return GL_FALSE;
-
-   /* get address of first pixel we'll read */
-   start = _mesa_image_address(dimensions, pack, ptr, width, height,
-                               format, type, 0, 0, 0);
-
-   /* get address just past the last pixel we'll read */
-   end =  _mesa_image_address(dimensions, pack, ptr, width, height,
-                              format, type, depth-1, height-1, width);
-
-
-   sizeAddr = ((const GLubyte *) 0) + pack->BufferObj->Size;
-
-   if ((const GLubyte *) start > sizeAddr) {
-      /* This will catch negative values / wrap-around */
-      return GL_FALSE;
-   }
-   if ((const GLubyte *) end > sizeAddr) {
-      /* Image read goes beyond end of buffer */
-      return GL_FALSE;
-   }
-
-   /* OK! */
-   return GL_TRUE;
-}
-
-
-/**
- * For commands that read from a PBO (glDrawPixels, glTexImage,
- * glPolygonStipple, etc), if we're reading from a PBO, map it read-only
- * and return the pointer into the PBO.  If we're not reading from a
- * PBO, return \p src as-is.
- * If non-null return, must call _mesa_unmap_pbo_source() when done.
- *
- * \return NULL if error, else pointer to start of data
- */
-const GLvoid *
-_mesa_map_pbo_source(struct gl_context *ctx,
-                     const struct gl_pixelstore_attrib *unpack,
-                     const GLvoid *src)
-{
-   const GLubyte *buf;
-
-   if (_mesa_is_bufferobj(unpack->BufferObj)) {
-      /* unpack from PBO */
-      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
-                                              GL_READ_ONLY_ARB,
-                                              unpack->BufferObj);
-      if (!buf)
-         return NULL;
-
-      buf = ADD_POINTERS(buf, src);
-   }
-   else {
-      /* unpack from normal memory */
-      buf = src;
-   }
-
-   return buf;
-}
-
-
-/**
- * Combine PBO-read validation and mapping.
- * If any GL errors are detected, they'll be recorded and NULL returned.
- * \sa _mesa_validate_pbo_access
- * \sa _mesa_map_pbo_source
- * A call to this function should have a matching call to
- * _mesa_unmap_pbo_source().
- */
-const GLvoid *
-_mesa_map_validate_pbo_source(struct gl_context *ctx,
-                              GLuint dimensions,
-                              const struct gl_pixelstore_attrib *unpack,
-                              GLsizei width, GLsizei height, GLsizei depth,
-                              GLenum format, GLenum type, const GLvoid *ptr,
-                              const char *where)
-{
-   ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);
-
-   if (!_mesa_is_bufferobj(unpack->BufferObj)) {
-      /* non-PBO access: no validation to be done */
-      return ptr;
-   }
-
-   if (!_mesa_validate_pbo_access(dimensions, unpack,
-                                  width, height, depth, format, type, ptr)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "%s(out of bounds PBO access)", where);
-      return NULL;
-   }
-
-   if (_mesa_bufferobj_mapped(unpack->BufferObj)) {
-      /* buffer is already mapped - that's an error */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
-      return NULL;
-   }
-
-   ptr = _mesa_map_pbo_source(ctx, unpack, ptr);
-   return ptr;
-}
-
-
-/**
- * Counterpart to _mesa_map_pbo_source()
- */
-void
-_mesa_unmap_pbo_source(struct gl_context *ctx,
-                       const struct gl_pixelstore_attrib *unpack)
-{
-   ASSERT(unpack != &ctx->Pack); /* catch pack/unpack mismatch */
-   if (_mesa_is_bufferobj(unpack->BufferObj)) {
-      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
-                              unpack->BufferObj);
-   }
-}
-
-
-/**
- * For commands that write to a PBO (glReadPixels, glGetColorTable, etc),
- * if we're writing to a PBO, map it write-only and return the pointer
- * into the PBO.  If we're not writing to a PBO, return \p dst as-is.
- * If non-null return, must call _mesa_unmap_pbo_dest() when done.
- *
- * \return NULL if error, else pointer to start of data
- */
-void *
-_mesa_map_pbo_dest(struct gl_context *ctx,
-                   const struct gl_pixelstore_attrib *pack,
-                   GLvoid *dest)
-{
-   void *buf;
-
-   if (_mesa_is_bufferobj(pack->BufferObj)) {
-      /* pack into PBO */
-      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
-                                              GL_WRITE_ONLY_ARB,
-                                              pack->BufferObj);
-      if (!buf)
-         return NULL;
-
-      buf = ADD_POINTERS(buf, dest);
-   }
-   else {
-      /* pack to normal memory */
-      buf = dest;
-   }
-
-   return buf;
-}
-
-
-/**
- * Combine PBO-write validation and mapping.
- * If any GL errors are detected, they'll be recorded and NULL returned.
- * \sa _mesa_validate_pbo_access
- * \sa _mesa_map_pbo_dest
- * A call to this function should have a matching call to
- * _mesa_unmap_pbo_dest().
- */
-GLvoid *
-_mesa_map_validate_pbo_dest(struct gl_context *ctx,
-                            GLuint dimensions,
-                            const struct gl_pixelstore_attrib *unpack,
-                            GLsizei width, GLsizei height, GLsizei depth,
-                            GLenum format, GLenum type, GLvoid *ptr,
-                            const char *where)
-{
-   ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);
-
-   if (!_mesa_is_bufferobj(unpack->BufferObj)) {
-      /* non-PBO access: no validation to be done */
-      return ptr;
-   }
-
-   if (!_mesa_validate_pbo_access(dimensions, unpack,
-                                  width, height, depth, format, type, ptr)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "%s(out of bounds PBO access)", where);
-      return NULL;
-   }
-
-   if (_mesa_bufferobj_mapped(unpack->BufferObj)) {
-      /* buffer is already mapped - that's an error */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
-      return NULL;
-   }
-
-   ptr = _mesa_map_pbo_dest(ctx, unpack, ptr);
-   return ptr;
-}
-
-
-/**
- * Counterpart to _mesa_map_pbo_dest()
- */
-void
-_mesa_unmap_pbo_dest(struct gl_context *ctx,
-                     const struct gl_pixelstore_attrib *pack)
-{
-   ASSERT(pack != &ctx->Unpack); /* catch pack/unpack mismatch */
-   if (_mesa_is_bufferobj(pack->BufferObj)) {
-      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, pack->BufferObj);
-   }
-}
-
-
-
-/**
- * Return the gl_buffer_object for the given ID.
- * Always return NULL for ID 0.
- */
-struct gl_buffer_object *
-_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer)
-{
-   if (buffer == 0)
-      return NULL;
-   else
-      return (struct gl_buffer_object *)
-         _mesa_HashLookup(ctx->Shared->BufferObjects, buffer);
-}
-
-
-/**
- * If *ptr points to obj, set ptr = the Null/default buffer object.
- * This is a helper for buffer object deletion.
- * The GL spec says that deleting a buffer object causes it to get
- * unbound from all arrays in the current context.
- */
-static void
-unbind(struct gl_context *ctx,
-       struct gl_buffer_object **ptr,
-       struct gl_buffer_object *obj)
-{
-   if (*ptr == obj) {
-      _mesa_reference_buffer_object(ctx, ptr, ctx->Shared->NullBufferObj);
-   }
-}
-
-
-/**
- * Plug default/fallback buffer object functions into the device
- * driver hooks.
- */
-void
-_mesa_init_buffer_object_functions(struct dd_function_table *driver)
-{
-   /* GL_ARB_vertex/pixel_buffer_object */
-   driver->NewBufferObject = _mesa_new_buffer_object;
-   driver->DeleteBuffer = _mesa_delete_buffer_object;
-   driver->BindBuffer = NULL;
-   driver->BufferData = _mesa_buffer_data;
-   driver->BufferSubData = _mesa_buffer_subdata;
-   driver->GetBufferSubData = _mesa_buffer_get_subdata;
-   driver->MapBuffer = _mesa_buffer_map;
-   driver->UnmapBuffer = _mesa_buffer_unmap;
-
-   /* GL_ARB_map_buffer_range */
-   driver->MapBufferRange = _mesa_buffer_map_range;
-   driver->FlushMappedBufferRange = _mesa_buffer_flush_mapped_range;
-
-   /* GL_ARB_copy_buffer */
-   driver->CopyBufferSubData = _mesa_copy_buffer_subdata;
-}
-
-
-
-/**********************************************************************/
-/* API Functions                                                      */
-/**********************************************************************/
-
-void GLAPIENTRY
-_mesa_BindBufferARB(GLenum target, GLuint buffer)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBindBuffer(%s, %u)\n",
-                  _mesa_lookup_enum_by_nr(target), buffer);
-
-   bind_buffer_object(ctx, target, buffer);
-}
-
-
-/**
- * Delete a set of buffer objects.
- * 
- * \param n      Number of buffer objects to delete.
- * \param ids    Array of \c n buffer object IDs.
- */
-void GLAPIENTRY
-_mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLsizei i;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)");
-      return;
-   }
-
-   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
-
-   for (i = 0; i < n; i++) {
-      struct gl_buffer_object *bufObj = _mesa_lookup_bufferobj(ctx, ids[i]);
-      if (bufObj) {
-         struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
-         GLuint j;
-
-         ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject);
-
-         if (_mesa_bufferobj_mapped(bufObj)) {
-            /* if mapped, unmap it now */
-            ctx->Driver.UnmapBuffer(ctx, 0, bufObj);
-            bufObj->AccessFlags = DEFAULT_ACCESS;
-            bufObj->Pointer = NULL;
-         }
-
-         /* unbind any vertex pointers bound to this buffer */
-         unbind(ctx, &arrayObj->Vertex.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->Weight.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->Normal.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->Color.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->SecondaryColor.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->FogCoord.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->Index.BufferObj, bufObj);
-         unbind(ctx, &arrayObj->EdgeFlag.BufferObj, bufObj);
-         for (j = 0; j < Elements(arrayObj->TexCoord); j++) {
-            unbind(ctx, &arrayObj->TexCoord[j].BufferObj, bufObj);
-         }
-         for (j = 0; j < Elements(arrayObj->VertexAttrib); j++) {
-            unbind(ctx, &arrayObj->VertexAttrib[j].BufferObj, bufObj);
-         }
-
-         if (ctx->Array.ArrayBufferObj == bufObj) {
-            _mesa_BindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
-         }
-         if (ctx->Array.ElementArrayBufferObj == bufObj) {
-            _mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
-         }
-
-         /* unbind any pixel pack/unpack pointers bound to this buffer */
-         if (ctx->Pack.BufferObj == bufObj) {
-            _mesa_BindBufferARB( GL_PIXEL_PACK_BUFFER_EXT, 0 );
-         }
-         if (ctx->Unpack.BufferObj == bufObj) {
-            _mesa_BindBufferARB( GL_PIXEL_UNPACK_BUFFER_EXT, 0 );
-         }
-
-         /* The ID is immediately freed for re-use */
-         _mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]);
-         _mesa_reference_buffer_object(ctx, &bufObj, NULL);
-      }
-   }
-
-   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-}
-
-
-/**
- * Generate a set of unique buffer object IDs and store them in \c buffer.
- * 
- * \param n       Number of IDs to generate.
- * \param buffer  Array of \c n locations to store the IDs.
- */
-void GLAPIENTRY
-_mesa_GenBuffersARB(GLsizei n, GLuint *buffer)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLuint first;
-   GLint i;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGenBuffers(%d)\n", n);
-
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGenBuffersARB");
-      return;
-   }
-
-   if (!buffer) {
-      return;
-   }
-
-   /*
-    * This must be atomic (generation and allocation of buffer object IDs)
-    */
-   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
-
-   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->BufferObjects, n);
-
-   /* Insert the ID and pointer to dummy buffer object into hash table */
-   for (i = 0; i < n; i++) {
-      _mesa_HashInsert(ctx->Shared->BufferObjects, first + i,
-                       &DummyBufferObject);
-      buffer[i] = first + i;
-   }
-
-   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-}
-
-
-/**
- * Determine if ID is the name of a buffer object.
- * 
- * \param id  ID of the potential buffer object.
- * \return  \c GL_TRUE if \c id is the name of a buffer object, 
- *          \c GL_FALSE otherwise.
- */
-GLboolean GLAPIENTRY
-_mesa_IsBufferARB(GLuint id)
-{
-   struct gl_buffer_object *bufObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
-   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
-   bufObj = _mesa_lookup_bufferobj(ctx, id);
-   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
-   return bufObj && bufObj != &DummyBufferObject;
-}
-
-
-void GLAPIENTRY
-_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size,
-                    const GLvoid * data, GLenum usage)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBufferData(%s, %ld, %p, %s)\n",
-                  _mesa_lookup_enum_by_nr(target),
-                  (long int) size, data,
-                  _mesa_lookup_enum_by_nr(usage));
-
-   if (size < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)");
-      return;
-   }
-
-   switch (usage) {
-   case GL_STREAM_DRAW_ARB:
-   case GL_STREAM_READ_ARB:
-   case GL_STREAM_COPY_ARB:
-   case GL_STATIC_DRAW_ARB:
-   case GL_STATIC_READ_ARB:
-   case GL_STATIC_COPY_ARB:
-   case GL_DYNAMIC_DRAW_ARB:
-   case GL_DYNAMIC_READ_ARB:
-   case GL_DYNAMIC_COPY_ARB:
-      /* OK */
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(usage)");
-      return;
-   }
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(target)" );
-      return;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glBufferDataARB(buffer 0)" );
-      return;
-   }
-   
-   if (_mesa_bufferobj_mapped(bufObj)) {
-      /* Unmap the existing buffer.  We'll replace it now.  Not an error. */
-      ctx->Driver.UnmapBuffer(ctx, target, bufObj);
-      bufObj->AccessFlags = DEFAULT_ACCESS;
-      ASSERT(bufObj->Pointer == NULL);
-   }  
-
-   FLUSH_VERTICES(ctx, _NEW_BUFFER_OBJECT);
-
-   bufObj->Written = GL_TRUE;
-
-#ifdef VBO_DEBUG
-   printf("glBufferDataARB(%u, sz %ld, from %p, usage 0x%x)\n",
-                bufObj->Name, size, data, usage);
-#endif
-
-#ifdef BOUNDS_CHECK
-   size += 100;
-#endif
-
-   ASSERT(ctx->Driver.BufferData);
-   if (!ctx->Driver.BufferData( ctx, target, size, data, usage, bufObj )) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferDataARB()");
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset,
-                       GLsizeiptrARB size, const GLvoid * data)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   bufObj = buffer_object_subdata_range_good( ctx, target, offset, size,
-                                              "glBufferSubDataARB" );
-   if (!bufObj) {
-      /* error already recorded */
-      return;
-   }
-
-   if (size == 0)
-      return;
-
-   bufObj->Written = GL_TRUE;
-
-   ASSERT(ctx->Driver.BufferSubData);
-   ctx->Driver.BufferSubData( ctx, target, offset, size, data, bufObj );
-}
-
-
-void GLAPIENTRY
-_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset,
-                          GLsizeiptrARB size, void * data)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   bufObj = buffer_object_subdata_range_good( ctx, target, offset, size,
-                                              "glGetBufferSubDataARB" );
-   if (!bufObj) {
-      /* error already recorded */
-      return;
-   }
-
-   ASSERT(ctx->Driver.GetBufferSubData);
-   ctx->Driver.GetBufferSubData( ctx, target, offset, size, data, bufObj );
-}
-
-
-void * GLAPIENTRY
-_mesa_MapBufferARB(GLenum target, GLenum access)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object * bufObj;
-   GLbitfield accessFlags;
-   void *map;
-
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
-
-   switch (access) {
-   case GL_READ_ONLY_ARB:
-      accessFlags = GL_MAP_READ_BIT;
-      break;
-   case GL_WRITE_ONLY_ARB:
-      accessFlags = GL_MAP_WRITE_BIT;
-      break;
-   case GL_READ_WRITE_ARB:
-      accessFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)");
-      return NULL;
-   }
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(target)" );
-      return NULL;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(buffer 0)" );
-      return NULL;
-   }
-   if (_mesa_bufferobj_mapped(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(already mapped)");
-      return NULL;
-   }
-
-   ASSERT(ctx->Driver.MapBuffer);
-   map = ctx->Driver.MapBuffer( ctx, target, access, bufObj );
-   if (!map) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)");
-      return NULL;
-   }
-   else {
-      /* The driver callback should have set these fields.
-       * This is important because other modules (like VBO) might call
-       * the driver function directly.
-       */
-      ASSERT(bufObj->Pointer == map);
-      ASSERT(bufObj->Length == bufObj->Size);
-      ASSERT(bufObj->Offset == 0);
-      bufObj->AccessFlags = accessFlags;
-   }
-
-   if (access == GL_WRITE_ONLY_ARB || access == GL_READ_WRITE_ARB)
-      bufObj->Written = GL_TRUE;
-
-#ifdef VBO_DEBUG
-   printf("glMapBufferARB(%u, sz %ld, access 0x%x)\n",
-	  bufObj->Name, bufObj->Size, access);
-   if (access == GL_WRITE_ONLY_ARB) {
-      GLuint i;
-      GLubyte *b = (GLubyte *) bufObj->Pointer;
-      for (i = 0; i < bufObj->Size; i++)
-         b[i] = i & 0xff;
-   }
-#endif
-
-#ifdef BOUNDS_CHECK
-   {
-      GLubyte *buf = (GLubyte *) bufObj->Pointer;
-      GLuint i;
-      /* buffer is 100 bytes larger than requested, fill with magic value */
-      for (i = 0; i < 100; i++) {
-         buf[bufObj->Size - i - 1] = 123;
-      }
-   }
-#endif
-
-   return bufObj->Pointer;
-}
-
-
-GLboolean GLAPIENTRY
-_mesa_UnmapBufferARB(GLenum target)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   GLboolean status = GL_TRUE;
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glUnmapBufferARB(target)" );
-      return GL_FALSE;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB" );
-      return GL_FALSE;
-   }
-   if (!_mesa_bufferobj_mapped(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB");
-      return GL_FALSE;
-   }
-
-#ifdef BOUNDS_CHECK
-   if (bufObj->Access != GL_READ_ONLY_ARB) {
-      GLubyte *buf = (GLubyte *) bufObj->Pointer;
-      GLuint i;
-      /* check that last 100 bytes are still = magic value */
-      for (i = 0; i < 100; i++) {
-         GLuint pos = bufObj->Size - i - 1;
-         if (buf[pos] != 123) {
-            _mesa_warning(ctx, "Out of bounds buffer object write detected"
-                          " at position %d (value = %u)\n",
-                          pos, buf[pos]);
-         }
-      }
-   }
-#endif
-
-#ifdef VBO_DEBUG
-   if (bufObj->AccessFlags & GL_MAP_WRITE_BIT) {
-      GLuint i, unchanged = 0;
-      GLubyte *b = (GLubyte *) bufObj->Pointer;
-      GLint pos = -1;
-      /* check which bytes changed */
-      for (i = 0; i < bufObj->Size - 1; i++) {
-         if (b[i] == (i & 0xff) && b[i+1] == ((i+1) & 0xff)) {
-            unchanged++;
-            if (pos == -1)
-               pos = i;
-         }
-      }
-      if (unchanged) {
-         printf("glUnmapBufferARB(%u): %u of %ld unchanged, starting at %d\n",
-                      bufObj->Name, unchanged, bufObj->Size, pos);
-      }
-   }
-#endif
-
-   status = ctx->Driver.UnmapBuffer( ctx, target, bufObj );
-   bufObj->AccessFlags = DEFAULT_ACCESS;
-   ASSERT(bufObj->Pointer == NULL);
-   ASSERT(bufObj->Offset == 0);
-   ASSERT(bufObj->Length == 0);
-
-   return status;
-}
-
-
-void GLAPIENTRY
-_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(target)" );
-      return;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameterivARB" );
-      return;
-   }
-
-   switch (pname) {
-   case GL_BUFFER_SIZE_ARB:
-      *params = (GLint) bufObj->Size;
-      return;
-   case GL_BUFFER_USAGE_ARB:
-      *params = bufObj->Usage;
-      return;
-   case GL_BUFFER_ACCESS_ARB:
-      *params = simplified_access_mode(bufObj->AccessFlags);
-      return;
-   case GL_BUFFER_MAPPED_ARB:
-      *params = _mesa_bufferobj_mapped(bufObj);
-      return;
-   case GL_BUFFER_ACCESS_FLAGS:
-      if (ctx->VersionMajor < 3)
-         goto invalid_pname;
-      *params = bufObj->AccessFlags;
-      return;
-   case GL_BUFFER_MAP_OFFSET:
-      if (ctx->VersionMajor < 3)
-         goto invalid_pname;
-      *params = (GLint) bufObj->Offset;
-      return;
-   case GL_BUFFER_MAP_LENGTH:
-      if (ctx->VersionMajor < 3)
-         goto invalid_pname;
-      *params = (GLint) bufObj->Length;
-      return;
-   default:
-      ; /* fall-through */
-   }
-
-invalid_pname:
-   _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(pname=%s)",
-               _mesa_lookup_enum_by_nr(pname));
-}
-
-
-/**
- * New in GL 3.2
- * This is pretty much a duplicate of GetBufferParameteriv() but the
- * GL_BUFFER_SIZE_ARB attribute will be 64-bits on a 64-bit system.
- */
-void GLAPIENTRY
-_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(target)" );
-      return;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameteri64v" );
-      return;
-   }
-
-   switch (pname) {
-   case GL_BUFFER_SIZE_ARB:
-      *params = bufObj->Size;
-      return;
-   case GL_BUFFER_USAGE_ARB:
-      *params = bufObj->Usage;
-      return;
-   case GL_BUFFER_ACCESS_ARB:
-      *params = simplified_access_mode(bufObj->AccessFlags);
-      return;
-   case GL_BUFFER_ACCESS_FLAGS:
-      if (ctx->VersionMajor < 3)
-         goto invalid_pname;
-      *params = bufObj->AccessFlags;
-      return;
-   case GL_BUFFER_MAPPED_ARB:
-      *params = _mesa_bufferobj_mapped(bufObj);
-      return;
-   case GL_BUFFER_MAP_OFFSET:
-      if (ctx->VersionMajor < 3)
-         goto invalid_pname;
-      *params = bufObj->Offset;
-      return;
-   case GL_BUFFER_MAP_LENGTH:
-      if (ctx->VersionMajor < 3)
-         goto invalid_pname;
-      *params = bufObj->Length;
-      return;
-   default:
-      ; /* fall-through */
-   }
-
-invalid_pname:
-   _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(pname=%s)",
-               _mesa_lookup_enum_by_nr(pname));
-}
-
-
-void GLAPIENTRY
-_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object * bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (pname != GL_BUFFER_MAP_POINTER_ARB) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(pname)");
-      return;
-   }
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(target)" );
-      return;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferPointervARB" );
-      return;
-   }
-
-   *params = bufObj->Pointer;
-}
-
-
-void GLAPIENTRY
-_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
-                        GLintptr readOffset, GLintptr writeOffset,
-                        GLsizeiptr size)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *src, *dst;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   src = get_buffer(ctx, readTarget);
-   if (!src || !_mesa_is_bufferobj(src)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glCopyBuffserSubData(readTarget = 0x%x)", readTarget);
-      return;
-   }
-
-   dst = get_buffer(ctx, writeTarget);
-   if (!dst || !_mesa_is_bufferobj(dst)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glCopyBuffserSubData(writeTarget = 0x%x)", writeTarget);
-      return;
-   }
-
-   if (_mesa_bufferobj_mapped(src)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glCopyBuffserSubData(readBuffer is mapped)");
-      return;
-   }
-
-   if (_mesa_bufferobj_mapped(dst)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glCopyBuffserSubData(writeBuffer is mapped)");
-      return;
-   }
-
-   if (readOffset < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glCopyBuffserSubData(readOffset = %d)", (int) readOffset);
-      return;
-   }
-
-   if (writeOffset < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glCopyBuffserSubData(writeOffset = %d)", (int) writeOffset);
-      return;
-   }
-
-   if (readOffset + size > src->Size) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glCopyBuffserSubData(readOffset + size = %d)",
-                  (int) (readOffset + size));
-      return;
-   }
-
-   if (writeOffset + size > dst->Size) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glCopyBuffserSubData(writeOffset + size = %d)",
-                  (int) (writeOffset + size));
-      return;
-   }
-
-   if (src == dst) {
-      if (readOffset + size <= writeOffset) {
-         /* OK */
-      }
-      else if (writeOffset + size <= readOffset) {
-         /* OK */
-      }
-      else {
-         /* overlapping src/dst is illegal */
-         _mesa_error(ctx, GL_INVALID_VALUE,
-                     "glCopyBuffserSubData(overlapping src/dst)");
-         return;
-      }
-   }
-
-   ctx->Driver.CopyBufferSubData(ctx, src, dst, readOffset, writeOffset, size);
-}
-
-
-/**
- * See GL_ARB_map_buffer_range spec
- */
-void * GLAPIENTRY
-_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
-                     GLbitfield access)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   void *map;
-
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
-
-   if (!ctx->Extensions.ARB_map_buffer_range) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(extension not supported)");
-      return NULL;
-   }
-
-   if (offset < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glMapBufferRange(offset = %ld)", (long)offset);
-      return NULL;
-   }
-
-   if (length < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glMapBufferRange(length = %ld)", (long)length);
-      return NULL;
-   }
-
-   if ((access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == 0) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(access indicates neither read or write)");
-      return NULL;
-   }
-
-   if (access & GL_MAP_READ_BIT) {
-      if ((access & GL_MAP_INVALIDATE_RANGE_BIT) ||
-          (access & GL_MAP_INVALIDATE_BUFFER_BIT) ||
-          (access & GL_MAP_UNSYNCHRONIZED_BIT)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glMapBufferRange(invalid access flags)");
-         return NULL;
-      }
-   }
-
-   if ((access & GL_MAP_FLUSH_EXPLICIT_BIT) &&
-       ((access & GL_MAP_WRITE_BIT) == 0)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(invalid access flags)");
-      return NULL;
-   }
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj || !_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glMapBufferRange(target = 0x%x)", target);
-      return NULL;
-   }
-
-   if (offset + length > bufObj->Size) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glMapBufferRange(offset + length > size)");
-      return NULL;
-   }
-
-   if (_mesa_bufferobj_mapped(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(buffer already mapped)");
-      return NULL;
-   }
-      
-   ASSERT(ctx->Driver.MapBufferRange);
-   map = ctx->Driver.MapBufferRange(ctx, target, offset, length,
-                                    access, bufObj);
-   if (!map) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)");
-   }
-   else {
-      /* The driver callback should have set all these fields.
-       * This is important because other modules (like VBO) might call
-       * the driver function directly.
-       */
-      ASSERT(bufObj->Pointer == map);
-      ASSERT(bufObj->Length == length);
-      ASSERT(bufObj->Offset == offset);
-      ASSERT(bufObj->AccessFlags == access);
-   }
-
-   return map;
-}
-
-
-/**
- * See GL_ARB_map_buffer_range spec
- */
-void GLAPIENTRY
-_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_buffer_object *bufObj;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (!ctx->Extensions.ARB_map_buffer_range) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(extension not supported)");
-      return;
-   }
-
-   if (offset < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glMapBufferRange(offset = %ld)", (long)offset);
-      return;
-   }
-
-   if (length < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glMapBufferRange(length = %ld)", (long)length);
-      return;
-   }
-
-   bufObj = get_buffer(ctx, target);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glMapBufferRange(target = 0x%x)", target);
-      return;
-   }
-
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(current buffer is 0)");
-      return;
-   }
-
-   if (!_mesa_bufferobj_mapped(bufObj)) {
-      /* buffer is not mapped */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(buffer is not mapped)");
-      return;
-   }
-
-   if ((bufObj->AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glMapBufferRange(GL_MAP_FLUSH_EXPLICIT_BIT not set)");
-      return;
-   }
-
-   if (offset + length > bufObj->Length) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-		  "glMapBufferRange(offset %ld + length %ld > mapped length %ld)",
-		  (long)offset, (long)length, (long)bufObj->Length);
-      return;
-   }
-
-   ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT);
-
-   if (ctx->Driver.FlushMappedBufferRange)
-      ctx->Driver.FlushMappedBufferRange(ctx, target, offset, length, bufObj);
-}
-
-
-#if FEATURE_APPLE_object_purgeable
-static GLenum
-_mesa_BufferObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option)
-{
-   struct gl_buffer_object *bufObj;
-   GLenum retval;
-
-   bufObj = _mesa_lookup_bufferobj(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectPurgeable(name = 0x%x)", name);
-      return 0;
-   }
-   if (!_mesa_is_bufferobj(bufObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glObjectPurgeable(buffer 0)" );
-      return 0;
-   }
-
-   if (bufObj->Purgeable) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glObjectPurgeable(name = 0x%x) is already purgeable", name);
-      return GL_VOLATILE_APPLE;
-   }
-
-   bufObj->Purgeable = GL_TRUE;
-
-   retval = GL_VOLATILE_APPLE;
-   if (ctx->Driver.BufferObjectPurgeable)
-      retval = ctx->Driver.BufferObjectPurgeable(ctx, bufObj, option);
-
-   return retval;
-}
-
-
-static GLenum
-_mesa_RenderObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option)
-{
-   struct gl_renderbuffer *bufObj;
-   GLenum retval;
-
-   bufObj = _mesa_lookup_renderbuffer(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   if (bufObj->Purgeable) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glObjectPurgeable(name = 0x%x) is already purgeable", name);
-      return GL_VOLATILE_APPLE;
-   }
-
-   bufObj->Purgeable = GL_TRUE;
-
-   retval = GL_VOLATILE_APPLE;
-   if (ctx->Driver.RenderObjectPurgeable)
-      retval = ctx->Driver.RenderObjectPurgeable(ctx, bufObj, option);
-
-   return retval;
-}
-
-
-static GLenum
-_mesa_TextureObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option)
-{
-   struct gl_texture_object *bufObj;
-   GLenum retval;
-
-   bufObj = _mesa_lookup_texture(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectPurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   if (bufObj->Purgeable) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glObjectPurgeable(name = 0x%x) is already purgeable", name);
-      return GL_VOLATILE_APPLE;
-   }
-
-   bufObj->Purgeable = GL_TRUE;
-
-   retval = GL_VOLATILE_APPLE;
-   if (ctx->Driver.TextureObjectPurgeable)
-      retval = ctx->Driver.TextureObjectPurgeable(ctx, bufObj, option);
-
-   return retval;
-}
-
-
-GLenum GLAPIENTRY
-_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option)
-{
-   GLenum retval;
-
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
-
-   if (name == 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectPurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   switch (option) {
-   case GL_VOLATILE_APPLE:
-   case GL_RELEASED_APPLE:
-      /* legal */
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glObjectPurgeable(name = 0x%x) invalid option: %d",
-                  name, option);
-      return 0;
-   }
-
-   switch (objectType) {
-   case GL_TEXTURE:
-      retval = _mesa_TextureObjectPurgeable (ctx, name, option);
-      break;
-   case GL_RENDERBUFFER_EXT:
-      retval = _mesa_RenderObjectPurgeable (ctx, name, option);
-      break;
-   case GL_BUFFER_OBJECT_APPLE:
-      retval = _mesa_BufferObjectPurgeable (ctx, name, option);
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glObjectPurgeable(name = 0x%x) invalid type: %d",
-                  name, objectType);
-      return 0;
-   }
-
-   /* In strict conformance to the spec, we must only return VOLATILE when
-    * when passed the VOLATILE option. Madness.
-    *
-    * XXX First fix the spec, then fix me.
-    */
-   return option == GL_VOLATILE_APPLE ? GL_VOLATILE_APPLE : retval;
-}
-
-
-static GLenum
-_mesa_BufferObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option)
-{
-   struct gl_buffer_object *bufObj;
-   GLenum retval;
-
-   bufObj = _mesa_lookup_bufferobj(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   if (! bufObj->Purgeable) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glObjectUnpurgeable(name = 0x%x) object is "
-                  " already \"unpurged\"", name);
-      return 0;
-   }
-
-   bufObj->Purgeable = GL_FALSE;
-
-   retval = option;
-   if (ctx->Driver.BufferObjectUnpurgeable)
-      retval = ctx->Driver.BufferObjectUnpurgeable(ctx, bufObj, option);
-
-   return retval;
-}
-
-
-static GLenum
-_mesa_RenderObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option)
-{
-   struct gl_renderbuffer *bufObj;
-   GLenum retval;
-
-   bufObj = _mesa_lookup_renderbuffer(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   if (! bufObj->Purgeable) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glObjectUnpurgeable(name = 0x%x) object is "
-                  " already \"unpurged\"", name);
-      return 0;
-   }
-
-   bufObj->Purgeable = GL_FALSE;
-
-   retval = option;
-   if (ctx->Driver.RenderObjectUnpurgeable)
-      retval = ctx->Driver.RenderObjectUnpurgeable(ctx, bufObj, option);
-
-   return retval;
-}
-
-
-static GLenum
-_mesa_TextureObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option)
-{
-   struct gl_texture_object *bufObj;
-   GLenum retval;
-
-   bufObj = _mesa_lookup_texture(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   if (! bufObj->Purgeable) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glObjectUnpurgeable(name = 0x%x) object is"
-                  " already \"unpurged\"", name);
-      return 0;
-   }
-
-   bufObj->Purgeable = GL_FALSE;
-
-   retval = option;
-   if (ctx->Driver.TextureObjectUnpurgeable)
-      retval = ctx->Driver.TextureObjectUnpurgeable(ctx, bufObj, option);
-
-   return retval;
-}
-
-
-GLenum GLAPIENTRY
-_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
-
-   if (name == 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return 0;
-   }
-
-   switch (option) {
-   case GL_RETAINED_APPLE:
-   case GL_UNDEFINED_APPLE:
-      /* legal */
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glObjectUnpurgeable(name = 0x%x) invalid option: %d",
-                  name, option);
-      return 0;
-   }
-
-   switch (objectType) {
-   case GL_BUFFER_OBJECT_APPLE:
-      return _mesa_BufferObjectUnpurgeable(ctx, name, option);
-   case GL_TEXTURE:
-      return _mesa_TextureObjectUnpurgeable(ctx, name, option);
-   case GL_RENDERBUFFER_EXT:
-      return _mesa_RenderObjectUnpurgeable(ctx, name, option);
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glObjectUnpurgeable(name = 0x%x) invalid type: %d",
-                  name, objectType);
-      return 0;
-   }
-}
-
-
-static void
-_mesa_GetBufferObjectParameterivAPPLE(struct gl_context *ctx, GLuint name,
-                                      GLenum pname, GLint* params)
-{
-   struct gl_buffer_object *bufObj;
-
-   bufObj = _mesa_lookup_bufferobj(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glGetObjectParameteriv(name = 0x%x) invalid object", name);
-      return;
-   }
-
-   switch (pname) {
-   case GL_PURGEABLE_APPLE:
-      *params = bufObj->Purgeable;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetObjectParameteriv(name = 0x%x) invalid enum: %d",
-                  name, pname);
-      break;
-   }
-}
-
-
-static void
-_mesa_GetRenderObjectParameterivAPPLE(struct gl_context *ctx, GLuint name,
-                                      GLenum pname, GLint* params)
-{
-   struct gl_renderbuffer *bufObj;
-
-   bufObj = _mesa_lookup_renderbuffer(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return;
-   }
-
-   switch (pname) {
-   case GL_PURGEABLE_APPLE:
-      *params = bufObj->Purgeable;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetObjectParameteriv(name = 0x%x) invalid enum: %d",
-                  name, pname);
-      break;
-   }
-}
-
-
-static void
-_mesa_GetTextureObjectParameterivAPPLE(struct gl_context *ctx, GLuint name,
-                                       GLenum pname, GLint* params)
-{
-   struct gl_texture_object *bufObj;
-
-   bufObj = _mesa_lookup_texture(ctx, name);
-   if (!bufObj) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glObjectUnpurgeable(name = 0x%x)", name);
-      return;
-   }
-
-   switch (pname) {
-   case GL_PURGEABLE_APPLE:
-      *params = bufObj->Purgeable;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetObjectParameteriv(name = 0x%x) invalid enum: %d",
-                  name, pname);
-      break;
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname,
-                                GLint* params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (name == 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glGetObjectParameteriv(name = 0x%x)", name);
-      return;
-   }
-
-   switch (objectType) {
-   case GL_TEXTURE:
-      _mesa_GetTextureObjectParameterivAPPLE (ctx, name, pname, params);
-      break;
-   case GL_BUFFER_OBJECT_APPLE:
-      _mesa_GetBufferObjectParameterivAPPLE (ctx, name, pname, params);
-      break;
-   case GL_RENDERBUFFER_EXT:
-      _mesa_GetRenderObjectParameterivAPPLE (ctx, name, pname, params);
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetObjectParameteriv(name = 0x%x) invalid type: %d",
-                  name, objectType);
-   }
-}
-
-#endif /* FEATURE_APPLE_object_purgeable */
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.6

+ *

+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

+ * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+/**

+ * \file bufferobj.c

+ * \brief Functions for the GL_ARB_vertex/pixel_buffer_object extensions.

+ * \author Brian Paul, Ian Romanick

+ */

+

+

+#include "glheader.h"

+#include "enums.h"

+#include "hash.h"

+#include "imports.h"

+#include "image.h"

+#include "context.h"

+#include "bufferobj.h"

+#include "fbobject.h"

+#include "mfeatures.h"

+#include "mtypes.h"

+#include "texobj.h"

+

+

+/* Debug flags */

+/*#define VBO_DEBUG*/

+/*#define BOUNDS_CHECK*/

+

+

+#if FEATURE_OES_mapbuffer

+#define DEFAULT_ACCESS GL_MAP_WRITE_BIT

+#else

+#define DEFAULT_ACCESS (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)

+#endif

+

+

+/**

+ * Used as a placeholder for buffer objects between glGenBuffers() and

+ * glBindBuffer() so that glIsBuffer() can work correctly.

+ */

+static struct gl_buffer_object DummyBufferObject;

+

+

+/**

+ * Return pointer to address of a buffer object target.

+ * \param ctx  the GL context

+ * \param target  the buffer object target to be retrieved.

+ * \return   pointer to pointer to the buffer object bound to \c target in the

+ *           specified context or \c NULL if \c target is invalid.

+ */

+static INLINE struct gl_buffer_object **

+get_buffer_target(struct gl_context *ctx, GLenum target)

+{

+   switch (target) {

+   case GL_ARRAY_BUFFER_ARB:

+      return &ctx->Array.ArrayBufferObj;

+   case GL_ELEMENT_ARRAY_BUFFER_ARB:

+      return &ctx->Array.ElementArrayBufferObj;

+   case GL_PIXEL_PACK_BUFFER_EXT:

+      return &ctx->Pack.BufferObj;

+   case GL_PIXEL_UNPACK_BUFFER_EXT:

+      return &ctx->Unpack.BufferObj;

+   case GL_COPY_READ_BUFFER:

+      return &ctx->CopyReadBuffer;

+   case GL_COPY_WRITE_BUFFER:

+      return &ctx->CopyWriteBuffer;

+#if FEATURE_EXT_transform_feedback

+   case GL_TRANSFORM_FEEDBACK_BUFFER:

+      if (ctx->Extensions.EXT_transform_feedback) {

+         return &ctx->TransformFeedback.CurrentBuffer;

+      }

+      break;

+#endif

+   default:

+      return NULL;

+   }

+   return NULL;

+}

+

+

+/**

+ * Get the buffer object bound to the specified target in a GL context.

+ * \param ctx  the GL context

+ * \param target  the buffer object target to be retrieved.

+ * \return   pointer to the buffer object bound to \c target in the

+ *           specified context or \c NULL if \c target is invalid.

+ */

+static INLINE struct gl_buffer_object *

+get_buffer(struct gl_context *ctx, GLenum target)

+{

+   struct gl_buffer_object **bufObj = get_buffer_target(ctx, target);

+   if (bufObj)

+      return *bufObj;

+   return NULL;

+}

+

+

+/**

+ * Convert a GLbitfield describing the mapped buffer access flags

+ * into one of GL_READ_WRITE, GL_READ_ONLY, or GL_WRITE_ONLY.

+ */

+static GLenum

+simplified_access_mode(GLbitfield access)

+{

+   const GLbitfield rwFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;

+   if ((access & rwFlags) == rwFlags)

+      return GL_READ_WRITE;

+   if ((access & GL_MAP_READ_BIT) == GL_MAP_READ_BIT)

+      return GL_READ_ONLY;

+   if ((access & GL_MAP_WRITE_BIT) == GL_MAP_WRITE_BIT)

+      return GL_WRITE_ONLY;

+   return GL_READ_WRITE; /* this should never happen, but no big deal */

+}

+

+

+/**

+ * Tests the subdata range parameters and sets the GL error code for

+ * \c glBufferSubDataARB and \c glGetBufferSubDataARB.

+ *

+ * \param ctx     GL context.

+ * \param target  Buffer object target on which to operate.

+ * \param offset  Offset of the first byte of the subdata range.

+ * \param size    Size, in bytes, of the subdata range.

+ * \param caller  Name of calling function for recording errors.

+ * \return   A pointer to the buffer object bound to \c target in the

+ *           specified context or \c NULL if any of the parameter or state

+ *           conditions for \c glBufferSubDataARB or \c glGetBufferSubDataARB

+ *           are invalid.

+ *

+ * \sa glBufferSubDataARB, glGetBufferSubDataARB

+ */

+static struct gl_buffer_object *

+buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target, 

+                                  GLintptrARB offset, GLsizeiptrARB size,

+                                  const char *caller )

+{

+   struct gl_buffer_object *bufObj;

+

+   if (size < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(size < 0)", caller);

+      return NULL;

+   }

+

+   if (offset < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(offset < 0)", caller);

+      return NULL;

+   }

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", caller);

+      return NULL;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);

+      return NULL;

+   }

+   if (offset + size > bufObj->Size) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+		  "%s(size + offset > buffer size)", caller);

+      return NULL;

+   }

+   if (_mesa_bufferobj_mapped(bufObj)) {

+      /* Buffer is currently mapped */

+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);

+      return NULL;

+   }

+

+   return bufObj;

+}

+

+

+/**

+ * Allocate and initialize a new buffer object.

+ * 

+ * Default callback for the \c dd_function_table::NewBufferObject() hook.

+ */

+struct gl_buffer_object *

+_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target )

+{

+   struct gl_buffer_object *obj;

+

+   (void) ctx;

+

+   obj = MALLOC_STRUCT(gl_buffer_object);

+   _mesa_initialize_buffer_object(obj, name, target);

+   return obj;

+}

+

+

+/**

+ * Delete a buffer object.

+ * 

+ * Default callback for the \c dd_function_table::DeleteBuffer() hook.

+ */

+void

+_mesa_delete_buffer_object( struct gl_context *ctx, struct gl_buffer_object *bufObj )

+{

+   (void) ctx;

+

+   if (bufObj->Data)

+      free(bufObj->Data);

+

+   /* assign strange values here to help w/ debugging */

+   bufObj->RefCount = -1000;

+   bufObj->Name = ~0;

+

+   _glthread_DESTROY_MUTEX(bufObj->Mutex);

+   free(bufObj);

+}

+

+

+

+/**

+ * Set ptr to bufObj w/ reference counting.

+ */

+void

+_mesa_reference_buffer_object(struct gl_context *ctx,

+                              struct gl_buffer_object **ptr,

+                              struct gl_buffer_object *bufObj)

+{

+   if (*ptr == bufObj)

+      return;

+

+   if (*ptr) {

+      /* Unreference the old buffer */

+      GLboolean deleteFlag = GL_FALSE;

+      struct gl_buffer_object *oldObj = *ptr;

+

+      _glthread_LOCK_MUTEX(oldObj->Mutex);

+      ASSERT(oldObj->RefCount > 0);

+      oldObj->RefCount--;

+#if 0

+      printf("BufferObj %p %d DECR to %d\n",

+             (void *) oldObj, oldObj->Name, oldObj->RefCount);

+#endif

+      deleteFlag = (oldObj->RefCount == 0);

+      _glthread_UNLOCK_MUTEX(oldObj->Mutex);

+

+      if (deleteFlag) {

+

+         /* some sanity checking: don't delete a buffer still in use */

+#if 0

+         /* unfortunately, these tests are invalid during context tear-down */

+	 ASSERT(ctx->Array.ArrayBufferObj != bufObj);

+	 ASSERT(ctx->Array.ElementArrayBufferObj != bufObj);

+	 ASSERT(ctx->Array.ArrayObj->Vertex.BufferObj != bufObj);

+#endif

+

+	 ASSERT(ctx->Driver.DeleteBuffer);

+         ctx->Driver.DeleteBuffer(ctx, oldObj);

+      }

+

+      *ptr = NULL;

+   }

+   ASSERT(!*ptr);

+

+   if (bufObj) {

+      /* reference new buffer */

+      _glthread_LOCK_MUTEX(bufObj->Mutex);

+      if (bufObj->RefCount == 0) {

+         /* this buffer's being deleted (look just above) */

+         /* Not sure this can every really happen.  Warn if it does. */

+         _mesa_problem(NULL, "referencing deleted buffer object");

+         *ptr = NULL;

+      }

+      else {

+         bufObj->RefCount++;

+#if 0

+         printf("BufferObj %p %d INCR to %d\n",

+                (void *) bufObj, bufObj->Name, bufObj->RefCount);

+#endif

+         *ptr = bufObj;

+      }

+      _glthread_UNLOCK_MUTEX(bufObj->Mutex);

+   }

+}

+

+

+/**

+ * Initialize a buffer object to default values.

+ */

+void

+_mesa_initialize_buffer_object( struct gl_buffer_object *obj,

+				GLuint name, GLenum target )

+{

+   (void) target;

+

+   memset(obj, 0, sizeof(struct gl_buffer_object));

+   _glthread_INIT_MUTEX(obj->Mutex);

+   obj->RefCount = 1;

+   obj->Name = name;

+   obj->Usage = GL_STATIC_DRAW_ARB;

+   obj->AccessFlags = DEFAULT_ACCESS;

+}

+

+

+/**

+ * Allocate space for and store data in a buffer object.  Any data that was

+ * previously stored in the buffer object is lost.  If \c data is \c NULL,

+ * memory will be allocated, but no copy will occur.

+ *

+ * This is the default callback for \c dd_function_table::BufferData()

+ * Note that all GL error checking will have been done already.

+ *

+ * \param ctx     GL context.

+ * \param target  Buffer object target on which to operate.

+ * \param size    Size, in bytes, of the new data store.

+ * \param data    Pointer to the data to store in the buffer object.  This

+ *                pointer may be \c NULL.

+ * \param usage   Hints about how the data will be used.

+ * \param bufObj  Object to be used.

+ *

+ * \return GL_TRUE for success, GL_FALSE for failure

+ * \sa glBufferDataARB, dd_function_table::BufferData.

+ */

+GLboolean

+_mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size,

+		   const GLvoid * data, GLenum usage,

+		   struct gl_buffer_object * bufObj )

+{

+   void * new_data;

+

+   (void) ctx; (void) target;

+

+   new_data = _mesa_realloc( bufObj->Data, bufObj->Size, size );

+   if (new_data) {

+      bufObj->Data = (GLubyte *) new_data;

+      bufObj->Size = size;

+      bufObj->Usage = usage;

+

+      if (data) {

+	 memcpy( bufObj->Data, data, size );

+      }

+

+      return GL_TRUE;

+   }

+   else {

+      return GL_FALSE;

+   }

+}

+

+

+/**

+ * Replace data in a subrange of buffer object.  If the data range

+ * specified by \c size + \c offset extends beyond the end of the buffer or

+ * if \c data is \c NULL, no copy is performed.

+ *

+ * This is the default callback for \c dd_function_table::BufferSubData()

+ * Note that all GL error checking will have been done already.

+ *

+ * \param ctx     GL context.

+ * \param target  Buffer object target on which to operate.

+ * \param offset  Offset of the first byte to be modified.

+ * \param size    Size, in bytes, of the data range.

+ * \param data    Pointer to the data to store in the buffer object.

+ * \param bufObj  Object to be used.

+ *

+ * \sa glBufferSubDataARB, dd_function_table::BufferSubData.

+ */

+void

+_mesa_buffer_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset,

+		      GLsizeiptrARB size, const GLvoid * data,

+		      struct gl_buffer_object * bufObj )

+{

+   (void) ctx; (void) target;

+

+   /* this should have been caught in _mesa_BufferSubData() */

+   ASSERT(size + offset <= bufObj->Size);

+

+   if (bufObj->Data) {

+      memcpy( (GLubyte *) bufObj->Data + offset, data, size );

+   }

+}

+

+

+/**

+ * Retrieve data from a subrange of buffer object.  If the data range

+ * specified by \c size + \c offset extends beyond the end of the buffer or

+ * if \c data is \c NULL, no copy is performed.

+ *

+ * This is the default callback for \c dd_function_table::GetBufferSubData()

+ * Note that all GL error checking will have been done already.

+ *

+ * \param ctx     GL context.

+ * \param target  Buffer object target on which to operate.

+ * \param offset  Offset of the first byte to be fetched.

+ * \param size    Size, in bytes, of the data range.

+ * \param data    Destination for data

+ * \param bufObj  Object to be used.

+ *

+ * \sa glBufferGetSubDataARB, dd_function_table::GetBufferSubData.

+ */

+void

+_mesa_buffer_get_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset,

+			  GLsizeiptrARB size, GLvoid * data,

+			  struct gl_buffer_object * bufObj )

+{

+   (void) ctx; (void) target;

+

+   if (bufObj->Data && ((GLsizeiptrARB) (size + offset) <= bufObj->Size)) {

+      memcpy( data, (GLubyte *) bufObj->Data + offset, size );

+   }

+}

+

+

+/**

+ * Default callback for \c dd_function_tabel::MapBuffer().

+ *

+ * The function parameters will have been already tested for errors.

+ *

+ * \param ctx     GL context.

+ * \param target  Buffer object target on which to operate.

+ * \param access  Information about how the buffer will be accessed.

+ * \param bufObj  Object to be mapped.

+ * \return  A pointer to the object's internal data store that can be accessed

+ *          by the processor

+ *

+ * \sa glMapBufferARB, dd_function_table::MapBuffer

+ */

+void *

+_mesa_buffer_map( struct gl_context *ctx, GLenum target, GLenum access,

+		  struct gl_buffer_object *bufObj )

+{

+   (void) ctx;

+   (void) target;

+   (void) access;

+   /* Just return a direct pointer to the data */

+   if (_mesa_bufferobj_mapped(bufObj)) {

+      /* already mapped! */

+      return NULL;

+   }

+   bufObj->Pointer = bufObj->Data;

+   bufObj->Length = bufObj->Size;

+   bufObj->Offset = 0;

+   return bufObj->Pointer;

+}

+

+

+/**

+ * Default fallback for \c dd_function_table::MapBufferRange().

+ * Called via glMapBufferRange().

+ */

+static void *

+_mesa_buffer_map_range( struct gl_context *ctx, GLenum target, GLintptr offset,

+                        GLsizeiptr length, GLbitfield access,

+                        struct gl_buffer_object *bufObj )

+{

+   (void) ctx;

+   (void) target;

+   assert(!_mesa_bufferobj_mapped(bufObj));

+   /* Just return a direct pointer to the data */

+   bufObj->Pointer = bufObj->Data + offset;

+   bufObj->Length = length;

+   bufObj->Offset = offset;

+   bufObj->AccessFlags = access;

+   return bufObj->Pointer;

+}

+

+

+/**

+ * Default fallback for \c dd_function_table::FlushMappedBufferRange().

+ * Called via glFlushMappedBufferRange().

+ */

+static void

+_mesa_buffer_flush_mapped_range( struct gl_context *ctx, GLenum target, 

+                                 GLintptr offset, GLsizeiptr length,

+                                 struct gl_buffer_object *obj )

+{

+   (void) ctx;

+   (void) target;

+   (void) offset;

+   (void) length;

+   (void) obj;

+   /* no-op */

+}

+

+

+/**

+ * Default callback for \c dd_function_table::MapBuffer().

+ *

+ * The input parameters will have been already tested for errors.

+ *

+ * \sa glUnmapBufferARB, dd_function_table::UnmapBuffer

+ */

+GLboolean

+_mesa_buffer_unmap( struct gl_context *ctx, GLenum target,

+                    struct gl_buffer_object *bufObj )

+{

+   (void) ctx;

+   (void) target;

+   /* XXX we might assert here that bufObj->Pointer is non-null */

+   bufObj->Pointer = NULL;

+   bufObj->Length = 0;

+   bufObj->Offset = 0;

+   bufObj->AccessFlags = 0x0;

+   return GL_TRUE;

+}

+

+

+/**

+ * Default fallback for \c dd_function_table::CopyBufferSubData().

+ * Called via glCopyBuffserSubData().

+ */

+static void

+_mesa_copy_buffer_subdata(struct gl_context *ctx,

+                          struct gl_buffer_object *src,

+                          struct gl_buffer_object *dst,

+                          GLintptr readOffset, GLintptr writeOffset,

+                          GLsizeiptr size)

+{

+   GLubyte *srcPtr, *dstPtr;

+

+   /* buffer should not already be mapped */

+   assert(!_mesa_bufferobj_mapped(src));

+   assert(!_mesa_bufferobj_mapped(dst));

+

+   srcPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_READ_BUFFER,

+                                              GL_READ_ONLY, src);

+   dstPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_WRITE_BUFFER,

+                                              GL_WRITE_ONLY, dst);

+

+   if (srcPtr && dstPtr)

+      memcpy(dstPtr + writeOffset, srcPtr + readOffset, size);

+

+   ctx->Driver.UnmapBuffer(ctx, GL_COPY_READ_BUFFER, src);

+   ctx->Driver.UnmapBuffer(ctx, GL_COPY_WRITE_BUFFER, dst);

+}

+

+

+

+/**

+ * Initialize the state associated with buffer objects

+ */

+void

+_mesa_init_buffer_objects( struct gl_context *ctx )

+{

+   memset(&DummyBufferObject, 0, sizeof(DummyBufferObject));

+   DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */

+

+   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj,

+                                 ctx->Shared->NullBufferObj);

+   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj,

+                                 ctx->Shared->NullBufferObj);

+

+   _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer,

+                                 ctx->Shared->NullBufferObj);

+   _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer,

+                                 ctx->Shared->NullBufferObj);

+}

+

+

+void

+_mesa_free_buffer_objects( struct gl_context *ctx )

+{

+   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL);

+   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL);

+

+   _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, NULL);

+   _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, NULL);

+}

+

+

+/**

+ * Bind the specified target to buffer for the specified context.

+ * Called by glBindBuffer() and other functions.

+ */

+static void

+bind_buffer_object(struct gl_context *ctx, GLenum target, GLuint buffer)

+{

+   struct gl_buffer_object *oldBufObj;

+   struct gl_buffer_object *newBufObj = NULL;

+   struct gl_buffer_object **bindTarget = NULL;

+

+   bindTarget = get_buffer_target(ctx, target);

+   if (!bindTarget) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target 0x%x)", target);

+      return;

+   }

+

+   /* Get pointer to old buffer object (to be unbound) */

+   oldBufObj = *bindTarget;

+   if (oldBufObj && oldBufObj->Name == buffer)

+      return;   /* rebinding the same buffer object- no change */

+

+   /*

+    * Get pointer to new buffer object (newBufObj)

+    */

+   if (buffer == 0) {

+      /* The spec says there's not a buffer object named 0, but we use

+       * one internally because it simplifies things.

+       */

+      newBufObj = ctx->Shared->NullBufferObj;

+   }

+   else {

+      /* non-default buffer object */

+      newBufObj = _mesa_lookup_bufferobj(ctx, buffer);

+      if (!newBufObj || newBufObj == &DummyBufferObject) {

+         /* If this is a new buffer object id, or one which was generated but

+          * never used before, allocate a buffer object now.

+          */

+         ASSERT(ctx->Driver.NewBufferObject);

+         newBufObj = ctx->Driver.NewBufferObject(ctx, buffer, target);

+         if (!newBufObj) {

+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindBufferARB");

+            return;

+         }

+         _mesa_HashInsert(ctx->Shared->BufferObjects, buffer, newBufObj);

+      }

+   }

+   

+   /* bind new buffer */

+   _mesa_reference_buffer_object(ctx, bindTarget, newBufObj);

+

+   /* Pass BindBuffer call to device driver */

+   if (ctx->Driver.BindBuffer)

+      ctx->Driver.BindBuffer( ctx, target, newBufObj );

+}

+

+

+/**

+ * Update the default buffer objects in the given context to reference those

+ * specified in the shared state and release those referencing the old 

+ * shared state.

+ */

+void

+_mesa_update_default_objects_buffer_objects(struct gl_context *ctx)

+{

+   /* Bind the NullBufferObj to remove references to those

+    * in the shared context hash table.

+    */

+   bind_buffer_object( ctx, GL_ARRAY_BUFFER_ARB, 0);

+   bind_buffer_object( ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, 0);

+   bind_buffer_object( ctx, GL_PIXEL_PACK_BUFFER_ARB, 0);

+   bind_buffer_object( ctx, GL_PIXEL_UNPACK_BUFFER_ARB, 0);

+}

+

+

+/**

+ * When we're about to read pixel data out of a PBO (via glDrawPixels,

+ * glTexImage, etc) or write data into a PBO (via glReadPixels,

+ * glGetTexImage, etc) we call this function to check that we're not

+ * going to read out of bounds.

+ *

+ * XXX This would also be a convenient time to check that the PBO isn't

+ * currently mapped.  Whoever calls this function should check for that.

+ * Remember, we can't use a PBO when it's mapped!

+ *

+ * If we're not using a PBO, this is a no-op.

+ *

+ * \param width  width of image to read/write

+ * \param height  height of image to read/write

+ * \param depth  depth of image to read/write

+ * \param format  format of image to read/write

+ * \param type  datatype of image to read/write

+ * \param ptr  the user-provided pointer/offset

+ * \return GL_TRUE if the PBO access is OK, GL_FALSE if the access would

+ *         go out of bounds.

+ */

+GLboolean

+_mesa_validate_pbo_access(GLuint dimensions,

+                          const struct gl_pixelstore_attrib *pack,

+                          GLsizei width, GLsizei height, GLsizei depth,

+                          GLenum format, GLenum type, const GLvoid *ptr)

+{

+   GLvoid *start, *end;

+   const GLubyte *sizeAddr; /* buffer size, cast to a pointer */

+

+   if (!_mesa_is_bufferobj(pack->BufferObj))

+      return GL_TRUE;  /* no PBO, OK */

+

+   if (pack->BufferObj->Size == 0)

+      /* no buffer! */

+      return GL_FALSE;

+

+   /* get address of first pixel we'll read */

+   start = _mesa_image_address(dimensions, pack, ptr, width, height,

+                               format, type, 0, 0, 0);

+

+   /* get address just past the last pixel we'll read */

+   end =  _mesa_image_address(dimensions, pack, ptr, width, height,

+                              format, type, depth-1, height-1, width);

+

+

+   sizeAddr = ((const GLubyte *) 0) + pack->BufferObj->Size;

+

+   if ((const GLubyte *) start > sizeAddr) {

+      /* This will catch negative values / wrap-around */

+      return GL_FALSE;

+   }

+   if ((const GLubyte *) end > sizeAddr) {

+      /* Image read goes beyond end of buffer */

+      return GL_FALSE;

+   }

+

+   /* OK! */

+   return GL_TRUE;

+}

+

+

+/**

+ * For commands that read from a PBO (glDrawPixels, glTexImage,

+ * glPolygonStipple, etc), if we're reading from a PBO, map it read-only

+ * and return the pointer into the PBO.  If we're not reading from a

+ * PBO, return \p src as-is.

+ * If non-null return, must call _mesa_unmap_pbo_source() when done.

+ *

+ * \return NULL if error, else pointer to start of data

+ */

+const GLvoid *

+_mesa_map_pbo_source(struct gl_context *ctx,

+                     const struct gl_pixelstore_attrib *unpack,

+                     const GLvoid *src)

+{

+   const GLubyte *buf;

+

+   if (_mesa_is_bufferobj(unpack->BufferObj)) {

+      /* unpack from PBO */

+      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,

+                                              GL_READ_ONLY_ARB,

+                                              unpack->BufferObj);

+      if (!buf)

+         return NULL;

+

+      buf = ADD_POINTERS(buf, src);

+   }

+   else {

+      /* unpack from normal memory */

+      buf = src;

+   }

+

+   return buf;

+}

+

+

+/**

+ * Combine PBO-read validation and mapping.

+ * If any GL errors are detected, they'll be recorded and NULL returned.

+ * \sa _mesa_validate_pbo_access

+ * \sa _mesa_map_pbo_source

+ * A call to this function should have a matching call to

+ * _mesa_unmap_pbo_source().

+ */

+const GLvoid *

+_mesa_map_validate_pbo_source(struct gl_context *ctx,

+                              GLuint dimensions,

+                              const struct gl_pixelstore_attrib *unpack,

+                              GLsizei width, GLsizei height, GLsizei depth,

+                              GLenum format, GLenum type, const GLvoid *ptr,

+                              const char *where)

+{

+   ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);

+

+   if (!_mesa_is_bufferobj(unpack->BufferObj)) {

+      /* non-PBO access: no validation to be done */

+      return ptr;

+   }

+

+   if (!_mesa_validate_pbo_access(dimensions, unpack,

+                                  width, height, depth, format, type, ptr)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "%s(out of bounds PBO access)", where);

+      return NULL;

+   }

+

+   if (_mesa_bufferobj_mapped(unpack->BufferObj)) {

+      /* buffer is already mapped - that's an error */

+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);

+      return NULL;

+   }

+

+   ptr = _mesa_map_pbo_source(ctx, unpack, ptr);

+   return ptr;

+}

+

+

+/**

+ * Counterpart to _mesa_map_pbo_source()

+ */

+void

+_mesa_unmap_pbo_source(struct gl_context *ctx,

+                       const struct gl_pixelstore_attrib *unpack)

+{

+   ASSERT(unpack != &ctx->Pack); /* catch pack/unpack mismatch */

+   if (_mesa_is_bufferobj(unpack->BufferObj)) {

+      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,

+                              unpack->BufferObj);

+   }

+}

+

+

+/**

+ * For commands that write to a PBO (glReadPixels, glGetColorTable, etc),

+ * if we're writing to a PBO, map it write-only and return the pointer

+ * into the PBO.  If we're not writing to a PBO, return \p dst as-is.

+ * If non-null return, must call _mesa_unmap_pbo_dest() when done.

+ *

+ * \return NULL if error, else pointer to start of data

+ */

+void *

+_mesa_map_pbo_dest(struct gl_context *ctx,

+                   const struct gl_pixelstore_attrib *pack,

+                   GLvoid *dest)

+{

+   void *buf;

+

+   if (_mesa_is_bufferobj(pack->BufferObj)) {

+      /* pack into PBO */

+      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,

+                                              GL_WRITE_ONLY_ARB,

+                                              pack->BufferObj);

+      if (!buf)

+         return NULL;

+

+      buf = ADD_POINTERS(buf, dest);

+   }

+   else {

+      /* pack to normal memory */

+      buf = dest;

+   }

+

+   return buf;

+}

+

+

+/**

+ * Combine PBO-write validation and mapping.

+ * If any GL errors are detected, they'll be recorded and NULL returned.

+ * \sa _mesa_validate_pbo_access

+ * \sa _mesa_map_pbo_dest

+ * A call to this function should have a matching call to

+ * _mesa_unmap_pbo_dest().

+ */

+GLvoid *

+_mesa_map_validate_pbo_dest(struct gl_context *ctx,

+                            GLuint dimensions,

+                            const struct gl_pixelstore_attrib *unpack,

+                            GLsizei width, GLsizei height, GLsizei depth,

+                            GLenum format, GLenum type, GLvoid *ptr,

+                            const char *where)

+{

+   ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);

+

+   if (!_mesa_is_bufferobj(unpack->BufferObj)) {

+      /* non-PBO access: no validation to be done */

+      return ptr;

+   }

+

+   if (!_mesa_validate_pbo_access(dimensions, unpack,

+                                  width, height, depth, format, type, ptr)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "%s(out of bounds PBO access)", where);

+      return NULL;

+   }

+

+   if (_mesa_bufferobj_mapped(unpack->BufferObj)) {

+      /* buffer is already mapped - that's an error */

+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);

+      return NULL;

+   }

+

+   ptr = _mesa_map_pbo_dest(ctx, unpack, ptr);

+   return ptr;

+}

+

+

+/**

+ * Counterpart to _mesa_map_pbo_dest()

+ */

+void

+_mesa_unmap_pbo_dest(struct gl_context *ctx,

+                     const struct gl_pixelstore_attrib *pack)

+{

+   ASSERT(pack != &ctx->Unpack); /* catch pack/unpack mismatch */

+   if (_mesa_is_bufferobj(pack->BufferObj)) {

+      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, pack->BufferObj);

+   }

+}

+

+

+

+/**

+ * Return the gl_buffer_object for the given ID.

+ * Always return NULL for ID 0.

+ */

+struct gl_buffer_object *

+_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer)

+{

+   if (buffer == 0)

+      return NULL;

+   else

+      return (struct gl_buffer_object *)

+         _mesa_HashLookup(ctx->Shared->BufferObjects, buffer);

+}

+

+

+/**

+ * If *ptr points to obj, set ptr = the Null/default buffer object.

+ * This is a helper for buffer object deletion.

+ * The GL spec says that deleting a buffer object causes it to get

+ * unbound from all arrays in the current context.

+ */

+static void

+unbind(struct gl_context *ctx,

+       struct gl_buffer_object **ptr,

+       struct gl_buffer_object *obj)

+{

+   if (*ptr == obj) {

+      _mesa_reference_buffer_object(ctx, ptr, ctx->Shared->NullBufferObj);

+   }

+}

+

+

+/**

+ * Plug default/fallback buffer object functions into the device

+ * driver hooks.

+ */

+void

+_mesa_init_buffer_object_functions(struct dd_function_table *driver)

+{

+   /* GL_ARB_vertex/pixel_buffer_object */

+   driver->NewBufferObject = _mesa_new_buffer_object;

+   driver->DeleteBuffer = _mesa_delete_buffer_object;

+   driver->BindBuffer = NULL;

+   driver->BufferData = _mesa_buffer_data;

+   driver->BufferSubData = _mesa_buffer_subdata;

+   driver->GetBufferSubData = _mesa_buffer_get_subdata;

+   driver->MapBuffer = _mesa_buffer_map;

+   driver->UnmapBuffer = _mesa_buffer_unmap;

+

+   /* GL_ARB_map_buffer_range */

+   driver->MapBufferRange = _mesa_buffer_map_range;

+   driver->FlushMappedBufferRange = _mesa_buffer_flush_mapped_range;

+

+   /* GL_ARB_copy_buffer */

+   driver->CopyBufferSubData = _mesa_copy_buffer_subdata;

+}

+

+

+

+/**********************************************************************/

+/* API Functions                                                      */

+/**********************************************************************/

+

+void GLAPIENTRY

+_mesa_BindBufferARB(GLenum target, GLuint buffer)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBindBuffer(%s, %u)\n",

+                  _mesa_lookup_enum_by_nr(target), buffer);

+

+   bind_buffer_object(ctx, target, buffer);

+}

+

+

+/**

+ * Delete a set of buffer objects.

+ * 

+ * \param n      Number of buffer objects to delete.

+ * \param ids    Array of \c n buffer object IDs.

+ */

+void GLAPIENTRY

+_mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLsizei i;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (n < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)");

+      return;

+   }

+

+   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

+

+   for (i = 0; i < n; i++) {

+      struct gl_buffer_object *bufObj = _mesa_lookup_bufferobj(ctx, ids[i]);

+      if (bufObj) {

+         struct gl_array_object *arrayObj = ctx->Array.ArrayObj;

+         GLuint j;

+

+         ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject);

+

+         if (_mesa_bufferobj_mapped(bufObj)) {

+            /* if mapped, unmap it now */

+            ctx->Driver.UnmapBuffer(ctx, 0, bufObj);

+            bufObj->AccessFlags = DEFAULT_ACCESS;

+            bufObj->Pointer = NULL;

+         }

+

+         /* unbind any vertex pointers bound to this buffer */

+         unbind(ctx, &arrayObj->Vertex.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->Weight.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->Normal.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->Color.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->SecondaryColor.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->FogCoord.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->Index.BufferObj, bufObj);

+         unbind(ctx, &arrayObj->EdgeFlag.BufferObj, bufObj);

+         for (j = 0; j < Elements(arrayObj->TexCoord); j++) {

+            unbind(ctx, &arrayObj->TexCoord[j].BufferObj, bufObj);

+         }

+         for (j = 0; j < Elements(arrayObj->VertexAttrib); j++) {

+            unbind(ctx, &arrayObj->VertexAttrib[j].BufferObj, bufObj);

+         }

+

+         if (ctx->Array.ArrayBufferObj == bufObj) {

+            _mesa_BindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );

+         }

+         if (ctx->Array.ElementArrayBufferObj == bufObj) {

+            _mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );

+         }

+

+         /* unbind any pixel pack/unpack pointers bound to this buffer */

+         if (ctx->Pack.BufferObj == bufObj) {

+            _mesa_BindBufferARB( GL_PIXEL_PACK_BUFFER_EXT, 0 );

+         }

+         if (ctx->Unpack.BufferObj == bufObj) {

+            _mesa_BindBufferARB( GL_PIXEL_UNPACK_BUFFER_EXT, 0 );

+         }

+

+         /* The ID is immediately freed for re-use */

+         _mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]);

+         _mesa_reference_buffer_object(ctx, &bufObj, NULL);

+      }

+   }

+

+   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);

+}

+

+

+/**

+ * Generate a set of unique buffer object IDs and store them in \c buffer.

+ * 

+ * \param n       Number of IDs to generate.

+ * \param buffer  Array of \c n locations to store the IDs.

+ */

+void GLAPIENTRY

+_mesa_GenBuffersARB(GLsizei n, GLuint *buffer)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLuint first;

+   GLint i;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGenBuffers(%d)\n", n);

+

+   if (n < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGenBuffersARB");

+      return;

+   }

+

+   if (!buffer) {

+      return;

+   }

+

+   /*

+    * This must be atomic (generation and allocation of buffer object IDs)

+    */

+   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

+

+   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->BufferObjects, n);

+

+   /* Insert the ID and pointer to dummy buffer object into hash table */

+   for (i = 0; i < n; i++) {

+      _mesa_HashInsert(ctx->Shared->BufferObjects, first + i,

+                       &DummyBufferObject);

+      buffer[i] = first + i;

+   }

+

+   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);

+}

+

+

+/**

+ * Determine if ID is the name of a buffer object.

+ * 

+ * \param id  ID of the potential buffer object.

+ * \return  \c GL_TRUE if \c id is the name of a buffer object, 

+ *          \c GL_FALSE otherwise.

+ */

+GLboolean GLAPIENTRY

+_mesa_IsBufferARB(GLuint id)

+{

+   struct gl_buffer_object *bufObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);

+

+   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

+   bufObj = _mesa_lookup_bufferobj(ctx, id);

+   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);

+

+   return bufObj && bufObj != &DummyBufferObject;

+}

+

+

+void GLAPIENTRY

+_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size,

+                    const GLvoid * data, GLenum usage)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBufferData(%s, %ld, %p, %s)\n",

+                  _mesa_lookup_enum_by_nr(target),

+                  (long int) size, data,

+                  _mesa_lookup_enum_by_nr(usage));

+

+   if (size < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)");

+      return;

+   }

+

+   switch (usage) {

+   case GL_STREAM_DRAW_ARB:

+   case GL_STREAM_READ_ARB:

+   case GL_STREAM_COPY_ARB:

+   case GL_STATIC_DRAW_ARB:

+   case GL_STATIC_READ_ARB:

+   case GL_STATIC_COPY_ARB:

+   case GL_DYNAMIC_DRAW_ARB:

+   case GL_DYNAMIC_READ_ARB:

+   case GL_DYNAMIC_COPY_ARB:

+      /* OK */

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(usage)");

+      return;

+   }

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(target)" );

+      return;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glBufferDataARB(buffer 0)" );

+      return;

+   }

+   

+   if (_mesa_bufferobj_mapped(bufObj)) {

+      /* Unmap the existing buffer.  We'll replace it now.  Not an error. */

+      ctx->Driver.UnmapBuffer(ctx, target, bufObj);

+      bufObj->AccessFlags = DEFAULT_ACCESS;

+      ASSERT(bufObj->Pointer == NULL);

+   }  

+

+   FLUSH_VERTICES(ctx, _NEW_BUFFER_OBJECT);

+

+   bufObj->Written = GL_TRUE;

+

+#ifdef VBO_DEBUG

+   printf("glBufferDataARB(%u, sz %ld, from %p, usage 0x%x)\n",

+                bufObj->Name, size, data, usage);

+#endif

+

+#ifdef BOUNDS_CHECK

+   size += 100;

+#endif

+

+   ASSERT(ctx->Driver.BufferData);

+   if (!ctx->Driver.BufferData( ctx, target, size, data, usage, bufObj )) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferDataARB()");

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset,

+                       GLsizeiptrARB size, const GLvoid * data)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   bufObj = buffer_object_subdata_range_good( ctx, target, offset, size,

+                                              "glBufferSubDataARB" );

+   if (!bufObj) {

+      /* error already recorded */

+      return;

+   }

+

+   if (size == 0)

+      return;

+

+   bufObj->Written = GL_TRUE;

+

+   ASSERT(ctx->Driver.BufferSubData);

+   ctx->Driver.BufferSubData( ctx, target, offset, size, data, bufObj );

+}

+

+

+void GLAPIENTRY

+_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset,

+                          GLsizeiptrARB size, void * data)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   bufObj = buffer_object_subdata_range_good( ctx, target, offset, size,

+                                              "glGetBufferSubDataARB" );

+   if (!bufObj) {

+      /* error already recorded */

+      return;

+   }

+

+   ASSERT(ctx->Driver.GetBufferSubData);

+   ctx->Driver.GetBufferSubData( ctx, target, offset, size, data, bufObj );

+}

+

+

+void * GLAPIENTRY

+_mesa_MapBufferARB(GLenum target, GLenum access)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object * bufObj;

+   GLbitfield accessFlags;

+   void *map;

+

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);

+

+   switch (access) {

+   case GL_READ_ONLY_ARB:

+      accessFlags = GL_MAP_READ_BIT;

+      break;

+   case GL_WRITE_ONLY_ARB:

+      accessFlags = GL_MAP_WRITE_BIT;

+      break;

+   case GL_READ_WRITE_ARB:

+      accessFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)");

+      return NULL;

+   }

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(target)" );

+      return NULL;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(buffer 0)" );

+      return NULL;

+   }

+   if (_mesa_bufferobj_mapped(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(already mapped)");

+      return NULL;

+   }

+

+   ASSERT(ctx->Driver.MapBuffer);

+   map = ctx->Driver.MapBuffer( ctx, target, access, bufObj );

+   if (!map) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)");

+      return NULL;

+   }

+   else {

+      /* The driver callback should have set these fields.

+       * This is important because other modules (like VBO) might call

+       * the driver function directly.

+       */

+      ASSERT(bufObj->Pointer == map);

+      ASSERT(bufObj->Length == bufObj->Size);

+      ASSERT(bufObj->Offset == 0);

+      bufObj->AccessFlags = accessFlags;

+   }

+

+   if (access == GL_WRITE_ONLY_ARB || access == GL_READ_WRITE_ARB)

+      bufObj->Written = GL_TRUE;

+

+#ifdef VBO_DEBUG

+   printf("glMapBufferARB(%u, sz %ld, access 0x%x)\n",

+	  bufObj->Name, bufObj->Size, access);

+   if (access == GL_WRITE_ONLY_ARB) {

+      GLuint i;

+      GLubyte *b = (GLubyte *) bufObj->Pointer;

+      for (i = 0; i < bufObj->Size; i++)

+         b[i] = i & 0xff;

+   }

+#endif

+

+#ifdef BOUNDS_CHECK

+   {

+      GLubyte *buf = (GLubyte *) bufObj->Pointer;

+      GLuint i;

+      /* buffer is 100 bytes larger than requested, fill with magic value */

+      for (i = 0; i < 100; i++) {

+         buf[bufObj->Size - i - 1] = 123;

+      }

+   }

+#endif

+

+   return bufObj->Pointer;

+}

+

+

+GLboolean GLAPIENTRY

+_mesa_UnmapBufferARB(GLenum target)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   GLboolean status = GL_TRUE;

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glUnmapBufferARB(target)" );

+      return GL_FALSE;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB" );

+      return GL_FALSE;

+   }

+   if (!_mesa_bufferobj_mapped(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB");

+      return GL_FALSE;

+   }

+

+#ifdef BOUNDS_CHECK

+   if (bufObj->Access != GL_READ_ONLY_ARB) {

+      GLubyte *buf = (GLubyte *) bufObj->Pointer;

+      GLuint i;

+      /* check that last 100 bytes are still = magic value */

+      for (i = 0; i < 100; i++) {

+         GLuint pos = bufObj->Size - i - 1;

+         if (buf[pos] != 123) {

+            _mesa_warning(ctx, "Out of bounds buffer object write detected"

+                          " at position %d (value = %u)\n",

+                          pos, buf[pos]);

+         }

+      }

+   }

+#endif

+

+#ifdef VBO_DEBUG

+   if (bufObj->AccessFlags & GL_MAP_WRITE_BIT) {

+      GLuint i, unchanged = 0;

+      GLubyte *b = (GLubyte *) bufObj->Pointer;

+      GLint pos = -1;

+      /* check which bytes changed */

+      for (i = 0; i < bufObj->Size - 1; i++) {

+         if (b[i] == (i & 0xff) && b[i+1] == ((i+1) & 0xff)) {

+            unchanged++;

+            if (pos == -1)

+               pos = i;

+         }

+      }

+      if (unchanged) {

+         printf("glUnmapBufferARB(%u): %u of %ld unchanged, starting at %d\n",

+                      bufObj->Name, unchanged, bufObj->Size, pos);

+      }

+   }

+#endif

+

+   status = ctx->Driver.UnmapBuffer( ctx, target, bufObj );

+   bufObj->AccessFlags = DEFAULT_ACCESS;

+   ASSERT(bufObj->Pointer == NULL);

+   ASSERT(bufObj->Offset == 0);

+   ASSERT(bufObj->Length == 0);

+

+   return status;

+}

+

+

+void GLAPIENTRY

+_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(target)" );

+      return;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameterivARB" );

+      return;

+   }

+

+   switch (pname) {

+   case GL_BUFFER_SIZE_ARB:

+      *params = (GLint) bufObj->Size;

+      return;

+   case GL_BUFFER_USAGE_ARB:

+      *params = bufObj->Usage;

+      return;

+   case GL_BUFFER_ACCESS_ARB:

+      *params = simplified_access_mode(bufObj->AccessFlags);

+      return;

+   case GL_BUFFER_MAPPED_ARB:

+      *params = _mesa_bufferobj_mapped(bufObj);

+      return;

+   case GL_BUFFER_ACCESS_FLAGS:

+      if (ctx->VersionMajor < 3)

+         goto invalid_pname;

+      *params = bufObj->AccessFlags;

+      return;

+   case GL_BUFFER_MAP_OFFSET:

+      if (ctx->VersionMajor < 3)

+         goto invalid_pname;

+      *params = (GLint) bufObj->Offset;

+      return;

+   case GL_BUFFER_MAP_LENGTH:

+      if (ctx->VersionMajor < 3)

+         goto invalid_pname;

+      *params = (GLint) bufObj->Length;

+      return;

+   default:

+      ; /* fall-through */

+   }

+

+invalid_pname:

+   _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(pname=%s)",

+               _mesa_lookup_enum_by_nr(pname));

+}

+

+

+/**

+ * New in GL 3.2

+ * This is pretty much a duplicate of GetBufferParameteriv() but the

+ * GL_BUFFER_SIZE_ARB attribute will be 64-bits on a 64-bit system.

+ */

+void GLAPIENTRY

+_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(target)" );

+      return;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameteri64v" );

+      return;

+   }

+

+   switch (pname) {

+   case GL_BUFFER_SIZE_ARB:

+      *params = bufObj->Size;

+      return;

+   case GL_BUFFER_USAGE_ARB:

+      *params = bufObj->Usage;

+      return;

+   case GL_BUFFER_ACCESS_ARB:

+      *params = simplified_access_mode(bufObj->AccessFlags);

+      return;

+   case GL_BUFFER_ACCESS_FLAGS:

+      if (ctx->VersionMajor < 3)

+         goto invalid_pname;

+      *params = bufObj->AccessFlags;

+      return;

+   case GL_BUFFER_MAPPED_ARB:

+      *params = _mesa_bufferobj_mapped(bufObj);

+      return;

+   case GL_BUFFER_MAP_OFFSET:

+      if (ctx->VersionMajor < 3)

+         goto invalid_pname;

+      *params = bufObj->Offset;

+      return;

+   case GL_BUFFER_MAP_LENGTH:

+      if (ctx->VersionMajor < 3)

+         goto invalid_pname;

+      *params = bufObj->Length;

+      return;

+   default:

+      ; /* fall-through */

+   }

+

+invalid_pname:

+   _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(pname=%s)",

+               _mesa_lookup_enum_by_nr(pname));

+}

+

+

+void GLAPIENTRY

+_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object * bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (pname != GL_BUFFER_MAP_POINTER_ARB) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(pname)");

+      return;

+   }

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(target)" );

+      return;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferPointervARB" );

+      return;

+   }

+

+   *params = bufObj->Pointer;

+}

+

+

+void GLAPIENTRY

+_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,

+                        GLintptr readOffset, GLintptr writeOffset,

+                        GLsizeiptr size)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *src, *dst;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   src = get_buffer(ctx, readTarget);

+   if (!src || !_mesa_is_bufferobj(src)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glCopyBuffserSubData(readTarget = 0x%x)", readTarget);

+      return;

+   }

+

+   dst = get_buffer(ctx, writeTarget);

+   if (!dst || !_mesa_is_bufferobj(dst)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glCopyBuffserSubData(writeTarget = 0x%x)", writeTarget);

+      return;

+   }

+

+   if (_mesa_bufferobj_mapped(src)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glCopyBuffserSubData(readBuffer is mapped)");

+      return;

+   }

+

+   if (_mesa_bufferobj_mapped(dst)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glCopyBuffserSubData(writeBuffer is mapped)");

+      return;

+   }

+

+   if (readOffset < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glCopyBuffserSubData(readOffset = %d)", (int) readOffset);

+      return;

+   }

+

+   if (writeOffset < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glCopyBuffserSubData(writeOffset = %d)", (int) writeOffset);

+      return;

+   }

+

+   if (readOffset + size > src->Size) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glCopyBuffserSubData(readOffset + size = %d)",

+                  (int) (readOffset + size));

+      return;

+   }

+

+   if (writeOffset + size > dst->Size) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glCopyBuffserSubData(writeOffset + size = %d)",

+                  (int) (writeOffset + size));

+      return;

+   }

+

+   if (src == dst) {

+      if (readOffset + size <= writeOffset) {

+         /* OK */

+      }

+      else if (writeOffset + size <= readOffset) {

+         /* OK */

+      }

+      else {

+         /* overlapping src/dst is illegal */

+         _mesa_error(ctx, GL_INVALID_VALUE,

+                     "glCopyBuffserSubData(overlapping src/dst)");

+         return;

+      }

+   }

+

+   ctx->Driver.CopyBufferSubData(ctx, src, dst, readOffset, writeOffset, size);

+}

+

+

+/**

+ * See GL_ARB_map_buffer_range spec

+ */

+void * GLAPIENTRY

+_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,

+                     GLbitfield access)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   void *map;

+

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);

+

+   if (!ctx->Extensions.ARB_map_buffer_range) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(extension not supported)");

+      return NULL;

+   }

+

+   if (offset < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glMapBufferRange(offset = %ld)", (long)offset);

+      return NULL;

+   }

+

+   if (length < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glMapBufferRange(length = %ld)", (long)length);

+      return NULL;

+   }

+

+   if ((access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == 0) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(access indicates neither read or write)");

+      return NULL;

+   }

+

+   if (access & GL_MAP_READ_BIT) {

+      if ((access & GL_MAP_INVALIDATE_RANGE_BIT) ||

+          (access & GL_MAP_INVALIDATE_BUFFER_BIT) ||

+          (access & GL_MAP_UNSYNCHRONIZED_BIT)) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "glMapBufferRange(invalid access flags)");

+         return NULL;

+      }

+   }

+

+   if ((access & GL_MAP_FLUSH_EXPLICIT_BIT) &&

+       ((access & GL_MAP_WRITE_BIT) == 0)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(invalid access flags)");

+      return NULL;

+   }

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj || !_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glMapBufferRange(target = 0x%x)", target);

+      return NULL;

+   }

+

+   if (offset + length > bufObj->Size) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glMapBufferRange(offset + length > size)");

+      return NULL;

+   }

+

+   if (_mesa_bufferobj_mapped(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(buffer already mapped)");

+      return NULL;

+   }

+      

+   ASSERT(ctx->Driver.MapBufferRange);

+   map = ctx->Driver.MapBufferRange(ctx, target, offset, length,

+                                    access, bufObj);

+   if (!map) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)");

+   }

+   else {

+      /* The driver callback should have set all these fields.

+       * This is important because other modules (like VBO) might call

+       * the driver function directly.

+       */

+      ASSERT(bufObj->Pointer == map);

+      ASSERT(bufObj->Length == length);

+      ASSERT(bufObj->Offset == offset);

+      ASSERT(bufObj->AccessFlags == access);

+   }

+

+   return map;

+}

+

+

+/**

+ * See GL_ARB_map_buffer_range spec

+ */

+void GLAPIENTRY

+_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_buffer_object *bufObj;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (!ctx->Extensions.ARB_map_buffer_range) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(extension not supported)");

+      return;

+   }

+

+   if (offset < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glMapBufferRange(offset = %ld)", (long)offset);

+      return;

+   }

+

+   if (length < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glMapBufferRange(length = %ld)", (long)length);

+      return;

+   }

+

+   bufObj = get_buffer(ctx, target);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glMapBufferRange(target = 0x%x)", target);

+      return;

+   }

+

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(current buffer is 0)");

+      return;

+   }

+

+   if (!_mesa_bufferobj_mapped(bufObj)) {

+      /* buffer is not mapped */

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(buffer is not mapped)");

+      return;

+   }

+

+   if ((bufObj->AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glMapBufferRange(GL_MAP_FLUSH_EXPLICIT_BIT not set)");

+      return;

+   }

+

+   if (offset + length > bufObj->Length) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+		  "glMapBufferRange(offset %ld + length %ld > mapped length %ld)",

+		  (long)offset, (long)length, (long)bufObj->Length);

+      return;

+   }

+

+   ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT);

+

+   if (ctx->Driver.FlushMappedBufferRange)

+      ctx->Driver.FlushMappedBufferRange(ctx, target, offset, length, bufObj);

+}

+

+

+#if FEATURE_APPLE_object_purgeable

+static GLenum

+_mesa_BufferObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option)

+{

+   struct gl_buffer_object *bufObj;

+   GLenum retval;

+

+   bufObj = _mesa_lookup_bufferobj(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectPurgeable(name = 0x%x)", name);

+      return 0;

+   }

+   if (!_mesa_is_bufferobj(bufObj)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glObjectPurgeable(buffer 0)" );

+      return 0;

+   }

+

+   if (bufObj->Purgeable) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glObjectPurgeable(name = 0x%x) is already purgeable", name);

+      return GL_VOLATILE_APPLE;

+   }

+

+   bufObj->Purgeable = GL_TRUE;

+

+   retval = GL_VOLATILE_APPLE;

+   if (ctx->Driver.BufferObjectPurgeable)

+      retval = ctx->Driver.BufferObjectPurgeable(ctx, bufObj, option);

+

+   return retval;

+}

+

+

+static GLenum

+_mesa_RenderObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option)

+{

+   struct gl_renderbuffer *bufObj;

+   GLenum retval;

+

+   bufObj = _mesa_lookup_renderbuffer(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   if (bufObj->Purgeable) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glObjectPurgeable(name = 0x%x) is already purgeable", name);

+      return GL_VOLATILE_APPLE;

+   }

+

+   bufObj->Purgeable = GL_TRUE;

+

+   retval = GL_VOLATILE_APPLE;

+   if (ctx->Driver.RenderObjectPurgeable)

+      retval = ctx->Driver.RenderObjectPurgeable(ctx, bufObj, option);

+

+   return retval;

+}

+

+

+static GLenum

+_mesa_TextureObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option)

+{

+   struct gl_texture_object *bufObj;

+   GLenum retval;

+

+   bufObj = _mesa_lookup_texture(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectPurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   if (bufObj->Purgeable) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glObjectPurgeable(name = 0x%x) is already purgeable", name);

+      return GL_VOLATILE_APPLE;

+   }

+

+   bufObj->Purgeable = GL_TRUE;

+

+   retval = GL_VOLATILE_APPLE;

+   if (ctx->Driver.TextureObjectPurgeable)

+      retval = ctx->Driver.TextureObjectPurgeable(ctx, bufObj, option);

+

+   return retval;

+}

+

+

+GLenum GLAPIENTRY

+_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option)

+{

+   GLenum retval;

+

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);

+

+   if (name == 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectPurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   switch (option) {

+   case GL_VOLATILE_APPLE:

+   case GL_RELEASED_APPLE:

+      /* legal */

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glObjectPurgeable(name = 0x%x) invalid option: %d",

+                  name, option);

+      return 0;

+   }

+

+   switch (objectType) {

+   case GL_TEXTURE:

+      retval = _mesa_TextureObjectPurgeable (ctx, name, option);

+      break;

+   case GL_RENDERBUFFER_EXT:

+      retval = _mesa_RenderObjectPurgeable (ctx, name, option);

+      break;

+   case GL_BUFFER_OBJECT_APPLE:

+      retval = _mesa_BufferObjectPurgeable (ctx, name, option);

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glObjectPurgeable(name = 0x%x) invalid type: %d",

+                  name, objectType);

+      return 0;

+   }

+

+   /* In strict conformance to the spec, we must only return VOLATILE when

+    * when passed the VOLATILE option. Madness.

+    *

+    * XXX First fix the spec, then fix me.

+    */

+   return option == GL_VOLATILE_APPLE ? GL_VOLATILE_APPLE : retval;

+}

+

+

+static GLenum

+_mesa_BufferObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option)

+{

+   struct gl_buffer_object *bufObj;

+   GLenum retval;

+

+   bufObj = _mesa_lookup_bufferobj(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   if (! bufObj->Purgeable) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glObjectUnpurgeable(name = 0x%x) object is "

+                  " already \"unpurged\"", name);

+      return 0;

+   }

+

+   bufObj->Purgeable = GL_FALSE;

+

+   retval = option;

+   if (ctx->Driver.BufferObjectUnpurgeable)

+      retval = ctx->Driver.BufferObjectUnpurgeable(ctx, bufObj, option);

+

+   return retval;

+}

+

+

+static GLenum

+_mesa_RenderObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option)

+{

+   struct gl_renderbuffer *bufObj;

+   GLenum retval;

+

+   bufObj = _mesa_lookup_renderbuffer(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   if (! bufObj->Purgeable) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glObjectUnpurgeable(name = 0x%x) object is "

+                  " already \"unpurged\"", name);

+      return 0;

+   }

+

+   bufObj->Purgeable = GL_FALSE;

+

+   retval = option;

+   if (ctx->Driver.RenderObjectUnpurgeable)

+      retval = ctx->Driver.RenderObjectUnpurgeable(ctx, bufObj, option);

+

+   return retval;

+}

+

+

+static GLenum

+_mesa_TextureObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option)

+{

+   struct gl_texture_object *bufObj;

+   GLenum retval;

+

+   bufObj = _mesa_lookup_texture(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   if (! bufObj->Purgeable) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glObjectUnpurgeable(name = 0x%x) object is"

+                  " already \"unpurged\"", name);

+      return 0;

+   }

+

+   bufObj->Purgeable = GL_FALSE;

+

+   retval = option;

+   if (ctx->Driver.TextureObjectUnpurgeable)

+      retval = ctx->Driver.TextureObjectUnpurgeable(ctx, bufObj, option);

+

+   return retval;

+}

+

+

+GLenum GLAPIENTRY

+_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);

+

+   if (name == 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return 0;

+   }

+

+   switch (option) {

+   case GL_RETAINED_APPLE:

+   case GL_UNDEFINED_APPLE:

+      /* legal */

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glObjectUnpurgeable(name = 0x%x) invalid option: %d",

+                  name, option);

+      return 0;

+   }

+

+   switch (objectType) {

+   case GL_BUFFER_OBJECT_APPLE:

+      return _mesa_BufferObjectUnpurgeable(ctx, name, option);

+   case GL_TEXTURE:

+      return _mesa_TextureObjectUnpurgeable(ctx, name, option);

+   case GL_RENDERBUFFER_EXT:

+      return _mesa_RenderObjectUnpurgeable(ctx, name, option);

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glObjectUnpurgeable(name = 0x%x) invalid type: %d",

+                  name, objectType);

+      return 0;

+   }

+}

+

+

+static void

+_mesa_GetBufferObjectParameterivAPPLE(struct gl_context *ctx, GLuint name,

+                                      GLenum pname, GLint* params)

+{

+   struct gl_buffer_object *bufObj;

+

+   bufObj = _mesa_lookup_bufferobj(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glGetObjectParameteriv(name = 0x%x) invalid object", name);

+      return;

+   }

+

+   switch (pname) {

+   case GL_PURGEABLE_APPLE:

+      *params = bufObj->Purgeable;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetObjectParameteriv(name = 0x%x) invalid enum: %d",

+                  name, pname);

+      break;

+   }

+}

+

+

+static void

+_mesa_GetRenderObjectParameterivAPPLE(struct gl_context *ctx, GLuint name,

+                                      GLenum pname, GLint* params)

+{

+   struct gl_renderbuffer *bufObj;

+

+   bufObj = _mesa_lookup_renderbuffer(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return;

+   }

+

+   switch (pname) {

+   case GL_PURGEABLE_APPLE:

+      *params = bufObj->Purgeable;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetObjectParameteriv(name = 0x%x) invalid enum: %d",

+                  name, pname);

+      break;

+   }

+}

+

+

+static void

+_mesa_GetTextureObjectParameterivAPPLE(struct gl_context *ctx, GLuint name,

+                                       GLenum pname, GLint* params)

+{

+   struct gl_texture_object *bufObj;

+

+   bufObj = _mesa_lookup_texture(ctx, name);

+   if (!bufObj) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glObjectUnpurgeable(name = 0x%x)", name);

+      return;

+   }

+

+   switch (pname) {

+   case GL_PURGEABLE_APPLE:

+      *params = bufObj->Purgeable;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetObjectParameteriv(name = 0x%x) invalid enum: %d",

+                  name, pname);

+      break;

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname,

+                                GLint* params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (name == 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE,

+                  "glGetObjectParameteriv(name = 0x%x)", name);

+      return;

+   }

+

+   switch (objectType) {

+   case GL_TEXTURE:

+      _mesa_GetTextureObjectParameterivAPPLE (ctx, name, pname, params);

+      break;

+   case GL_BUFFER_OBJECT_APPLE:

+      _mesa_GetBufferObjectParameterivAPPLE (ctx, name, pname, params);

+      break;

+   case GL_RENDERBUFFER_EXT:

+      _mesa_GetRenderObjectParameterivAPPLE (ctx, name, pname, params);

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetObjectParameteriv(name = 0x%x) invalid type: %d",

+                  name, objectType);

+   }

+}

+

+#endif /* FEATURE_APPLE_object_purgeable */

diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h
index 41cd48bc6..c1d773b18 100644
--- a/mesalib/src/mesa/main/compiler.h
+++ b/mesalib/src/mesa/main/compiler.h
@@ -60,29 +60,7 @@ extern "C" {
 /**

  * Get standard integer types

  */

-#if defined(_MSC_VER)

-   typedef __int8             int8_t;

-   typedef unsigned __int8    uint8_t;

-   typedef __int16            int16_t;

-   typedef unsigned __int16   uint16_t;

-   typedef __int32            int32_t;

-   typedef unsigned __int32   uint32_t;

-   typedef __int64            int64_t;

-   typedef unsigned __int64   uint64_t;

-

-#  if defined(_WIN64)

-     typedef __int64            intptr_t;

-     typedef unsigned __int64   uintptr_t;

-#  else

-     typedef __int32            intptr_t;

-     typedef unsigned __int32   uintptr_t;

-#  endif

-

-#  define INT64_C(__val) __val##i64

-#  define UINT64_C(__val) __val##ui64

-#else

-#  include <stdint.h>

-#endif

+#include <stdint.h>

 

 

 /**

diff --git a/mesalib/src/mesa/main/context.c b/mesalib/src/mesa/main/context.c
index a94231455..cfb6b348b 100644
--- a/mesalib/src/mesa/main/context.c
+++ b/mesalib/src/mesa/main/context.c
@@ -1,1882 +1,1882 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.3
- *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
- * Copyright (C) 2008  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file context.c
- * Mesa context/visual/framebuffer management functions.
- * \author Brian Paul
- */
-
-/**
- * \mainpage Mesa Main Module
- *
- * \section MainIntroduction Introduction
- *
- * The Mesa Main module consists of all the files in the main/ directory.
- * Among the features of this module are:
- * <UL>
- * <LI> Structures to represent most GL state </LI>
- * <LI> State set/get functions </LI>
- * <LI> Display lists </LI>
- * <LI> Texture unit, object and image handling </LI>
- * <LI> Matrix and attribute stacks </LI>
- * </UL>
- *
- * Other modules are responsible for API dispatch, vertex transformation,
- * point/line/triangle setup, rasterization, vertex array caching,
- * vertex/fragment programs/shaders, etc.
- *
- *
- * \section AboutDoxygen About Doxygen
- *
- * If you're viewing this information as Doxygen-generated HTML you'll
- * see the documentation index at the top of this page.
- *
- * The first line lists the Mesa source code modules.
- * The second line lists the indexes available for viewing the documentation
- * for each module.
- *
- * Selecting the <b>Main page</b> link will display a summary of the module
- * (this page).
- *
- * Selecting <b>Data Structures</b> will list all C structures.
- *
- * Selecting the <b>File List</b> link will list all the source files in
- * the module.
- * Selecting a filename will show a list of all functions defined in that file.
- *
- * Selecting the <b>Data Fields</b> link will display a list of all
- * documented structure members.
- *
- * Selecting the <b>Globals</b> link will display a list
- * of all functions, structures, global variables and macros in the module.
- *
- */
-
-
-#include "glheader.h"
-#include "mfeatures.h"
-#include "imports.h"
-#include "accum.h"
-#include "api_exec.h"
-#include "arrayobj.h"
-#include "attrib.h"
-#include "blend.h"
-#include "buffers.h"
-#include "bufferobj.h"
-#include "context.h"
-#include "cpuinfo.h"
-#include "debug.h"
-#include "depth.h"
-#include "dlist.h"
-#include "eval.h"
-#include "extensions.h"
-#include "fbobject.h"
-#include "feedback.h"
-#include "fog.h"
-#include "formats.h"
-#include "framebuffer.h"
-#include "hint.h"
-#include "hash.h"
-#include "light.h"
-#include "lines.h"
-#include "macros.h"
-#include "matrix.h"
-#include "multisample.h"
-#include "pixel.h"
-#include "pixelstore.h"
-#include "points.h"
-#include "polygon.h"
-#include "queryobj.h"
-#include "syncobj.h"
-#include "rastpos.h"
-#include "remap.h"
-#include "scissor.h"
-#include "shared.h"
-#include "shaderobj.h"
-#include "simple_list.h"
-#include "state.h"
-#include "stencil.h"
-#include "texcompress_s3tc.h"
-#include "texstate.h"
-#include "transformfeedback.h"
-#include "mtypes.h"
-#include "varray.h"
-#include "version.h"
-#include "viewport.h"
-#include "vtxfmt.h"
-#include "program/program.h"
-#include "program/prog_print.h"
-#if _HAVE_FULL_GL
-#include "math/m_matrix.h"
-#endif
-#include "main/dispatch.h" /* for _gloffset_COUNT */
-
-#ifdef USE_SPARC_ASM
-#include "sparc/sparc.h"
-#endif
-
-#include "glsl_parser_extras.h"
-#include <stdbool.h>
-
-
-#ifndef MESA_VERBOSE
-int MESA_VERBOSE = 0;
-#endif
-
-#ifndef MESA_DEBUG_FLAGS
-int MESA_DEBUG_FLAGS = 0;
-#endif
-
-
-/* ubyte -> float conversion */
-GLfloat _mesa_ubyte_to_float_color_tab[256];
-
-
-
-/**
- * Swap buffers notification callback.
- * 
- * \param ctx GL context.
- *
- * Called by window system just before swapping buffers.
- * We have to finish any pending rendering.
- */
-void
-_mesa_notifySwapBuffers(struct gl_context *ctx)
-{
-   if (MESA_VERBOSE & VERBOSE_SWAPBUFFERS)
-      _mesa_debug(ctx, "SwapBuffers\n");
-   FLUSH_CURRENT( ctx, 0 );
-   if (ctx->Driver.Flush) {
-      ctx->Driver.Flush(ctx);
-   }
-}
-
-
-/**********************************************************************/
-/** \name GL Visual allocation/destruction                            */
-/**********************************************************************/
-/*@{*/
-
-/**
- * Allocates a struct gl_config structure and initializes it via
- * _mesa_initialize_visual().
- * 
- * \param dbFlag double buffering
- * \param stereoFlag stereo buffer
- * \param depthBits requested bits per depth buffer value. Any value in [0, 32]
- * is acceptable but the actual depth type will be GLushort or GLuint as
- * needed.
- * \param stencilBits requested minimum bits per stencil buffer value
- * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer.
- * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE
- * \param redBits number of bits per color component in frame buffer for RGB(A)
- * mode.  We always use 8 in core Mesa though.
- * \param greenBits same as above.
- * \param blueBits same as above.
- * \param alphaBits same as above.
- * \param numSamples not really used.
- * 
- * \return pointer to new struct gl_config or NULL if requested parameters can't be
- * met.
- *
- * \note Need to add params for level and numAuxBuffers (at least)
- */
-struct gl_config *
-_mesa_create_visual( GLboolean dbFlag,
-                     GLboolean stereoFlag,
-                     GLint redBits,
-                     GLint greenBits,
-                     GLint blueBits,
-                     GLint alphaBits,
-                     GLint depthBits,
-                     GLint stencilBits,
-                     GLint accumRedBits,
-                     GLint accumGreenBits,
-                     GLint accumBlueBits,
-                     GLint accumAlphaBits,
-                     GLint numSamples )
-{
-   struct gl_config *vis = CALLOC_STRUCT(gl_config);
-   if (vis) {
-      if (!_mesa_initialize_visual(vis, dbFlag, stereoFlag,
-                                   redBits, greenBits, blueBits, alphaBits,
-                                   depthBits, stencilBits,
-                                   accumRedBits, accumGreenBits,
-                                   accumBlueBits, accumAlphaBits,
-                                   numSamples)) {
-         free(vis);
-         return NULL;
-      }
-   }
-   return vis;
-}
-
-
-/**
- * Makes some sanity checks and fills in the fields of the struct
- * gl_config object with the given parameters.  If the caller needs to
- * set additional fields, he should just probably init the whole
- * gl_config object himself.
- *
- * \return GL_TRUE on success, or GL_FALSE on failure.
- *
- * \sa _mesa_create_visual() above for the parameter description.
- */
-GLboolean
-_mesa_initialize_visual( struct gl_config *vis,
-                         GLboolean dbFlag,
-                         GLboolean stereoFlag,
-                         GLint redBits,
-                         GLint greenBits,
-                         GLint blueBits,
-                         GLint alphaBits,
-                         GLint depthBits,
-                         GLint stencilBits,
-                         GLint accumRedBits,
-                         GLint accumGreenBits,
-                         GLint accumBlueBits,
-                         GLint accumAlphaBits,
-                         GLint numSamples )
-{
-   assert(vis);
-
-   if (depthBits < 0 || depthBits > 32) {
-      return GL_FALSE;
-   }
-   if (stencilBits < 0 || stencilBits > STENCIL_BITS) {
-      return GL_FALSE;
-   }
-   assert(accumRedBits >= 0);
-   assert(accumGreenBits >= 0);
-   assert(accumBlueBits >= 0);
-   assert(accumAlphaBits >= 0);
-
-   vis->rgbMode          = GL_TRUE;
-   vis->doubleBufferMode = dbFlag;
-   vis->stereoMode       = stereoFlag;
-
-   vis->redBits          = redBits;
-   vis->greenBits        = greenBits;
-   vis->blueBits         = blueBits;
-   vis->alphaBits        = alphaBits;
-   vis->rgbBits          = redBits + greenBits + blueBits;
-
-   vis->indexBits      = 0;
-   vis->depthBits      = depthBits;
-   vis->stencilBits    = stencilBits;
-
-   vis->accumRedBits   = accumRedBits;
-   vis->accumGreenBits = accumGreenBits;
-   vis->accumBlueBits  = accumBlueBits;
-   vis->accumAlphaBits = accumAlphaBits;
-
-   vis->haveAccumBuffer   = accumRedBits > 0;
-   vis->haveDepthBuffer   = depthBits > 0;
-   vis->haveStencilBuffer = stencilBits > 0;
-
-   vis->numAuxBuffers = 0;
-   vis->level = 0;
-   vis->sampleBuffers = numSamples > 0 ? 1 : 0;
-   vis->samples = numSamples;
-
-   return GL_TRUE;
-}
-
-
-/**
- * Destroy a visual and free its memory.
- *
- * \param vis visual.
- * 
- * Frees the visual structure.
- */
-void
-_mesa_destroy_visual( struct gl_config *vis )
-{
-   free(vis);
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name Context allocation, initialization, destroying
- *
- * The purpose of the most initialization functions here is to provide the
- * default state values according to the OpenGL specification.
- */
-/**********************************************************************/
-/*@{*/
-
-
-/**
- * This is lame.  gdb only seems to recognize enum types that are
- * actually used somewhere.  We want to be able to print/use enum
- * values such as TEXTURE_2D_INDEX in gdb.  But we don't actually use
- * the gl_texture_index type anywhere.  Thus, this lame function.
- */
-static void
-dummy_enum_func(void)
-{
-   gl_buffer_index bi = BUFFER_FRONT_LEFT;
-   gl_face_index fi = FACE_POS_X;
-   gl_frag_attrib fa = FRAG_ATTRIB_WPOS;
-   gl_frag_result fr = FRAG_RESULT_DEPTH;
-   gl_texture_index ti = TEXTURE_2D_ARRAY_INDEX;
-   gl_vert_attrib va = VERT_ATTRIB_POS;
-   gl_vert_result vr = VERT_RESULT_HPOS;
-   gl_geom_attrib ga = GEOM_ATTRIB_POSITION;
-   gl_geom_result gr = GEOM_RESULT_POS;
-
-   (void) bi;
-   (void) fi;
-   (void) fa;
-   (void) fr;
-   (void) ti;
-   (void) va;
-   (void) vr;
-   (void) ga;
-   (void) gr;
-}
-
-
-/**
- * One-time initialization mutex lock.
- *
- * \sa Used by one_time_init().
- */
-_glthread_DECLARE_STATIC_MUTEX(OneTimeLock);
-
-
-
-/**
- * Calls all the various one-time-init functions in Mesa.
- *
- * While holding a global mutex lock, calls several initialization functions,
- * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is
- * defined.
- *
- * \sa _math_init().
- */
-static void
-one_time_init( struct gl_context *ctx )
-{
-   static GLbitfield api_init_mask = 0x0;
-
-   _glthread_LOCK_MUTEX(OneTimeLock);
-
-   /* truly one-time init */
-   if (!api_init_mask) {
-      GLuint i;
-
-      /* do some implementation tests */
-      assert( sizeof(GLbyte) == 1 );
-      assert( sizeof(GLubyte) == 1 );
-      assert( sizeof(GLshort) == 2 );
-      assert( sizeof(GLushort) == 2 );
-      assert( sizeof(GLint) == 4 );
-      assert( sizeof(GLuint) == 4 );
-
-      _mesa_get_cpu_features();
-
-      _mesa_init_sqrt_table();
-
-      /* context dependence is never a one-time thing... */
-      _mesa_init_get_hash(ctx);
-
-      for (i = 0; i < 256; i++) {
-         _mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F;
-      }
-
-#if defined(DEBUG) && defined(__DATE__) && defined(__TIME__)
-      if (MESA_VERBOSE != 0) {
-	 _mesa_debug(ctx, "Mesa %s DEBUG build %s %s\n",
-		     MESA_VERSION_STRING, __DATE__, __TIME__);
-      }
-#endif
-
-#ifdef DEBUG
-      _mesa_test_formats();
-#endif
-   }
-
-   /* per-API one-time init */
-   if (!(api_init_mask & (1 << ctx->API))) {
-      /*
-       * This is fine as ES does not use the remap table, but it may not be
-       * future-proof.  We cannot always initialize the remap table because
-       * when an app is linked to libGLES*, there are not enough dynamic
-       * entries.
-       */
-      if (ctx->API == API_OPENGL)
-         _mesa_init_remap_table();
-   }
-
-   api_init_mask |= 1 << ctx->API;
-
-   _glthread_UNLOCK_MUTEX(OneTimeLock);
-
-   /* Hopefully atexit() is widely available.  If not, we may need some
-    * #ifdef tests here.
-    */
-   atexit(_mesa_destroy_shader_compiler);
-
-   dummy_enum_func();
-}
-
-
-/**
- * Initialize fields of gl_current_attrib (aka ctx->Current.*)
- */
-static void
-_mesa_init_current(struct gl_context *ctx)
-{
-   GLuint i;
-
-   /* Init all to (0,0,0,1) */
-   for (i = 0; i < Elements(ctx->Current.Attrib); i++) {
-      ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 );
-   }
-
-   /* redo special cases: */
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 0.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX], 1.0, 0.0, 0.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG], 1.0, 0.0, 0.0, 1.0 );
-}
-
-
-/**
- * Init vertex/fragment/geometry program limits.
- * Important: drivers should override these with actual limits.
- */
-static void
-init_program_limits(GLenum type, struct gl_program_constants *prog)
-{
-   prog->MaxInstructions = MAX_PROGRAM_INSTRUCTIONS;
-   prog->MaxAluInstructions = MAX_PROGRAM_INSTRUCTIONS;
-   prog->MaxTexInstructions = MAX_PROGRAM_INSTRUCTIONS;
-   prog->MaxTexIndirections = MAX_PROGRAM_INSTRUCTIONS;
-   prog->MaxTemps = MAX_PROGRAM_TEMPS;
-   prog->MaxEnvParams = MAX_PROGRAM_ENV_PARAMS;
-   prog->MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS;
-   prog->MaxUniformComponents = 4 * MAX_UNIFORMS;
-
-   switch (type) {
-   case GL_VERTEX_PROGRAM_ARB:
-      prog->MaxParameters = MAX_VERTEX_PROGRAM_PARAMS;
-      prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS;
-      prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS;
-      break;
-   case GL_FRAGMENT_PROGRAM_ARB:
-      prog->MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS;
-      prog->MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS;
-      prog->MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS;
-      break;
-   case MESA_GEOMETRY_PROGRAM:
-      prog->MaxParameters = MAX_NV_VERTEX_PROGRAM_PARAMS;
-      prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS;
-      prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS;
-
-      prog->MaxGeometryTextureImageUnits = MAX_GEOMETRY_TEXTURE_IMAGE_UNITS;
-      prog->MaxGeometryVaryingComponents = MAX_GEOMETRY_VARYING_COMPONENTS;
-      prog->MaxVertexVaryingComponents = MAX_VERTEX_VARYING_COMPONENTS;
-      prog->MaxGeometryUniformComponents = MAX_GEOMETRY_UNIFORM_COMPONENTS;
-      prog->MaxGeometryOutputVertices = MAX_GEOMETRY_OUTPUT_VERTICES;
-      prog->MaxGeometryTotalOutputComponents = MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS;
-      break;
-   default:
-      assert(0 && "Bad program type in init_program_limits()");
-   }
-
-   /* Set the native limits to zero.  This implies that there is no native
-    * support for shaders.  Let the drivers fill in the actual values.
-    */
-   prog->MaxNativeInstructions = 0;
-   prog->MaxNativeAluInstructions = 0;
-   prog->MaxNativeTexInstructions = 0;
-   prog->MaxNativeTexIndirections = 0;
-   prog->MaxNativeAttribs = 0;
-   prog->MaxNativeTemps = 0;
-   prog->MaxNativeAddressRegs = 0;
-   prog->MaxNativeParameters = 0;
-
-   /* Set GLSL datatype range/precision info assuming IEEE float values.
-    * Drivers should override these defaults as needed.
-    */
-   prog->MediumFloat.RangeMin = 127;
-   prog->MediumFloat.RangeMax = 127;
-   prog->MediumFloat.Precision = 23;
-   prog->LowFloat = prog->HighFloat = prog->MediumFloat;
-
-   /* Assume ints are stored as floats for now, since this is the least-common
-    * denominator.  The OpenGL ES spec implies (page 132) that the precision
-    * of integer types should be 0.  Practically speaking, IEEE
-    * single-precision floating point values can only store integers in the
-    * range [-0x01000000, 0x01000000] without loss of precision.
-    */
-   prog->MediumInt.RangeMin = 24;
-   prog->MediumInt.RangeMax = 24;
-   prog->MediumInt.Precision = 0;
-   prog->LowInt = prog->HighInt = prog->MediumInt;
-}
-
-
-/**
- * Initialize fields of gl_constants (aka ctx->Const.*).
- * Use defaults from config.h.  The device drivers will often override
- * some of these values (such as number of texture units).
- */
-static void 
-_mesa_init_constants(struct gl_context *ctx)
-{
-   assert(ctx);
-
-   /* Constants, may be overriden (usually only reduced) by device drivers */
-   ctx->Const.MaxTextureMbytes = MAX_TEXTURE_MBYTES;
-   ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS;
-   ctx->Const.Max3DTextureLevels = MAX_3D_TEXTURE_LEVELS;
-   ctx->Const.MaxCubeTextureLevels = MAX_CUBE_TEXTURE_LEVELS;
-   ctx->Const.MaxTextureRectSize = MAX_TEXTURE_RECT_SIZE;
-   ctx->Const.MaxArrayTextureLayers = MAX_ARRAY_TEXTURE_LAYERS;
-   ctx->Const.MaxTextureCoordUnits = MAX_TEXTURE_COORD_UNITS;
-   ctx->Const.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;
-   ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits,
-                                     ctx->Const.MaxTextureImageUnits);
-   ctx->Const.MaxTextureMaxAnisotropy = MAX_TEXTURE_MAX_ANISOTROPY;
-   ctx->Const.MaxTextureLodBias = MAX_TEXTURE_LOD_BIAS;
-   ctx->Const.MaxArrayLockSize = MAX_ARRAY_LOCK_SIZE;
-   ctx->Const.SubPixelBits = SUB_PIXEL_BITS;
-   ctx->Const.MinPointSize = MIN_POINT_SIZE;
-   ctx->Const.MaxPointSize = MAX_POINT_SIZE;
-   ctx->Const.MinPointSizeAA = MIN_POINT_SIZE;
-   ctx->Const.MaxPointSizeAA = MAX_POINT_SIZE;
-   ctx->Const.PointSizeGranularity = (GLfloat) POINT_SIZE_GRANULARITY;
-   ctx->Const.MinLineWidth = MIN_LINE_WIDTH;
-   ctx->Const.MaxLineWidth = MAX_LINE_WIDTH;
-   ctx->Const.MinLineWidthAA = MIN_LINE_WIDTH;
-   ctx->Const.MaxLineWidthAA = MAX_LINE_WIDTH;
-   ctx->Const.LineWidthGranularity = (GLfloat) LINE_WIDTH_GRANULARITY;
-   ctx->Const.MaxColorTableSize = MAX_COLOR_TABLE_SIZE;
-   ctx->Const.MaxClipPlanes = MAX_CLIP_PLANES;
-   ctx->Const.MaxLights = MAX_LIGHTS;
-   ctx->Const.MaxShininess = 128.0;
-   ctx->Const.MaxSpotExponent = 128.0;
-   ctx->Const.MaxViewportWidth = MAX_WIDTH;
-   ctx->Const.MaxViewportHeight = MAX_HEIGHT;
-#if FEATURE_ARB_vertex_program
-   init_program_limits(GL_VERTEX_PROGRAM_ARB, &ctx->Const.VertexProgram);
-#endif
-#if FEATURE_ARB_fragment_program
-   init_program_limits(GL_FRAGMENT_PROGRAM_ARB, &ctx->Const.FragmentProgram);
-#endif
-#if FEATURE_ARB_geometry_shader4
-   init_program_limits(MESA_GEOMETRY_PROGRAM, &ctx->Const.GeometryProgram);
-#endif
-   ctx->Const.MaxProgramMatrices = MAX_PROGRAM_MATRICES;
-   ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH;
-
-   /* CheckArrayBounds is overriden by drivers/x11 for X server */
-   ctx->Const.CheckArrayBounds = GL_FALSE;
-
-   /* GL_ARB_draw_buffers */
-   ctx->Const.MaxDrawBuffers = MAX_DRAW_BUFFERS;
-
-#if FEATURE_EXT_framebuffer_object
-   ctx->Const.MaxColorAttachments = MAX_COLOR_ATTACHMENTS;
-   ctx->Const.MaxRenderbufferSize = MAX_WIDTH;
-#endif
-
-#if FEATURE_ARB_vertex_shader
-   ctx->Const.MaxVertexTextureImageUnits = MAX_VERTEX_TEXTURE_IMAGE_UNITS;
-   ctx->Const.MaxCombinedTextureImageUnits = MAX_COMBINED_TEXTURE_IMAGE_UNITS;
-   ctx->Const.MaxVarying = MAX_VARYING;
-#endif
-
-   /* Shading language version */
-   if (ctx->API == API_OPENGL) {
-      ctx->Const.GLSLVersion = 120;
-   }
-   else if (ctx->API == API_OPENGLES2) {
-      ctx->Const.GLSLVersion = 100;
-   }
-   else if (ctx->API == API_OPENGLES) {
-      ctx->Const.GLSLVersion = 0; /* GLSL not supported */
-   }
-
-   /* GL_ARB_framebuffer_object */
-   ctx->Const.MaxSamples = 0;
-
-   /* GL_ARB_sync */
-   ctx->Const.MaxServerWaitTimeout = (GLuint64) ~0;
-
-   /* GL_ATI_envmap_bumpmap */
-   ctx->Const.SupportedBumpUnits = SUPPORTED_ATI_BUMP_UNITS;
-
-   /* GL_EXT_provoking_vertex */
-   ctx->Const.QuadsFollowProvokingVertexConvention = GL_TRUE;
-
-   /* GL_EXT_transform_feedback */
-   ctx->Const.MaxTransformFeedbackSeparateAttribs = MAX_FEEDBACK_ATTRIBS;
-   ctx->Const.MaxTransformFeedbackSeparateComponents = 4 * MAX_FEEDBACK_ATTRIBS;
-   ctx->Const.MaxTransformFeedbackInterleavedComponents = 4 * MAX_FEEDBACK_ATTRIBS;
-
-   /* GL 3.2: hard-coded for now: */
-   ctx->Const.ProfileMask = GL_CONTEXT_COMPATIBILITY_PROFILE_BIT;
-
-   /** GL_EXT_gpu_shader4 */
-   ctx->Const.MinProgramTexelOffset = -8;
-   ctx->Const.MaxProgramTexelOffset = 7;
-}
-
-
-/**
- * Do some sanity checks on the limits/constants for the given context.
- * Only called the first time a context is bound.
- */
-static void
-check_context_limits(struct gl_context *ctx)
-{
-   /* check that we don't exceed the size of various bitfields */
-   assert(VERT_RESULT_MAX <=
-	  (8 * sizeof(ctx->VertexProgram._Current->Base.OutputsWritten)));
-   assert(FRAG_ATTRIB_MAX <=
-	  (8 * sizeof(ctx->FragmentProgram._Current->Base.InputsRead)));
-
-   assert(MAX_COMBINED_TEXTURE_IMAGE_UNITS <= 8 * sizeof(GLbitfield));
-
-   /* shader-related checks */
-   assert(ctx->Const.FragmentProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS);
-   assert(ctx->Const.VertexProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS);
-
-   assert(MAX_NV_FRAGMENT_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS);
-   assert(MAX_NV_VERTEX_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS);
-   assert(MAX_NV_VERTEX_PROGRAM_INPUTS <= VERT_ATTRIB_MAX);
-   assert(MAX_NV_VERTEX_PROGRAM_OUTPUTS <= VERT_RESULT_MAX);
-
-   /* Texture unit checks */
-   assert(ctx->Const.MaxTextureImageUnits > 0);
-   assert(ctx->Const.MaxTextureImageUnits <= MAX_TEXTURE_IMAGE_UNITS);
-   assert(ctx->Const.MaxTextureCoordUnits > 0);
-   assert(ctx->Const.MaxTextureCoordUnits <= MAX_TEXTURE_COORD_UNITS);
-   assert(ctx->Const.MaxTextureUnits > 0);
-   assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS);
-   assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS);
-   assert(ctx->Const.MaxTextureUnits == MIN2(ctx->Const.MaxTextureImageUnits,
-                                             ctx->Const.MaxTextureCoordUnits));
-   assert(ctx->Const.MaxCombinedTextureImageUnits > 0);
-   assert(ctx->Const.MaxCombinedTextureImageUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS);
-   assert(ctx->Const.MaxTextureCoordUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS);
-   /* number of coord units cannot be greater than number of image units */
-   assert(ctx->Const.MaxTextureCoordUnits <= ctx->Const.MaxTextureImageUnits);
-
-
-   /* Texture size checks */
-   assert(ctx->Const.MaxTextureLevels <= MAX_TEXTURE_LEVELS);
-   assert(ctx->Const.Max3DTextureLevels <= MAX_3D_TEXTURE_LEVELS);
-   assert(ctx->Const.MaxCubeTextureLevels <= MAX_CUBE_TEXTURE_LEVELS);
-   assert(ctx->Const.MaxTextureRectSize <= MAX_TEXTURE_RECT_SIZE);
-
-   /* make sure largest texture image is <= MAX_WIDTH in size */
-   assert((1 << (ctx->Const.MaxTextureLevels - 1)) <= MAX_WIDTH);
-   assert((1 << (ctx->Const.MaxCubeTextureLevels - 1)) <= MAX_WIDTH);
-   assert((1 << (ctx->Const.Max3DTextureLevels - 1)) <= MAX_WIDTH);
-
-   /* Texture level checks */
-   assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS);
-   assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS);
-
-   /* Max texture size should be <= max viewport size (render to texture) */
-   assert((1 << (MAX_TEXTURE_LEVELS - 1)) <= MAX_WIDTH);
-
-   assert(ctx->Const.MaxViewportWidth <= MAX_WIDTH);
-   assert(ctx->Const.MaxViewportHeight <= MAX_WIDTH);
-
-   assert(ctx->Const.MaxDrawBuffers <= MAX_DRAW_BUFFERS);
-
-   /* if this fails, add more enum values to gl_buffer_index */
-   assert(BUFFER_COLOR0 + MAX_DRAW_BUFFERS <= BUFFER_COUNT);
-
-   /* XXX probably add more tests */
-}
-
-
-/**
- * Initialize the attribute groups in a GL context.
- *
- * \param ctx GL context.
- *
- * Initializes all the attributes, calling the respective <tt>init*</tt>
- * functions for the more complex data structures.
- */
-static GLboolean
-init_attrib_groups(struct gl_context *ctx)
-{
-   assert(ctx);
-
-   /* Constants */
-   _mesa_init_constants( ctx );
-
-   /* Extensions */
-   _mesa_init_extensions( ctx );
-
-   /* Attribute Groups */
-   _mesa_init_accum( ctx );
-   _mesa_init_attrib( ctx );
-   _mesa_init_buffer_objects( ctx );
-   _mesa_init_color( ctx );
-   _mesa_init_current( ctx );
-   _mesa_init_depth( ctx );
-   _mesa_init_debug( ctx );
-   _mesa_init_display_list( ctx );
-   _mesa_init_eval( ctx );
-   _mesa_init_fbobjects( ctx );
-   _mesa_init_feedback( ctx );
-   _mesa_init_fog( ctx );
-   _mesa_init_hint( ctx );
-   _mesa_init_line( ctx );
-   _mesa_init_lighting( ctx );
-   _mesa_init_matrix( ctx );
-   _mesa_init_multisample( ctx );
-   _mesa_init_pixel( ctx );
-   _mesa_init_pixelstore( ctx );
-   _mesa_init_point( ctx );
-   _mesa_init_polygon( ctx );
-   _mesa_init_program( ctx );
-   _mesa_init_queryobj( ctx );
-   _mesa_init_sync( ctx );
-   _mesa_init_rastpos( ctx );
-   _mesa_init_scissor( ctx );
-   _mesa_init_shader_state( ctx );
-   _mesa_init_stencil( ctx );
-   _mesa_init_transform( ctx );
-   _mesa_init_transform_feedback( ctx );
-   _mesa_init_varray( ctx );
-   _mesa_init_viewport( ctx );
-
-   if (!_mesa_init_texture( ctx ))
-      return GL_FALSE;
-
-   _mesa_init_texture_s3tc( ctx );
-
-   /* Miscellaneous */
-   ctx->NewState = _NEW_ALL;
-   ctx->ErrorValue = (GLenum) GL_NO_ERROR;
-   ctx->varying_vp_inputs = ~0;
-
-   return GL_TRUE;
-}
-
-
-/**
- * Update default objects in a GL context with respect to shared state.
- *
- * \param ctx GL context.
- *
- * Removes references to old default objects, (texture objects, program
- * objects, etc.) and changes to reference those from the current shared
- * state.
- */
-static GLboolean
-update_default_objects(struct gl_context *ctx)
-{
-   assert(ctx);
-
-   _mesa_update_default_objects_program(ctx);
-   _mesa_update_default_objects_texture(ctx);
-   _mesa_update_default_objects_buffer_objects(ctx);
-
-   return GL_TRUE;
-}
-
-
-/**
- * This is the default function we plug into all dispatch table slots
- * This helps prevents a segfault when someone calls a GL function without
- * first checking if the extension's supported.
- */
-static int
-generic_nop(void)
-{
-   _mesa_warning(NULL, "User called no-op dispatch function (an unsupported extension function?)");
-   return 0;
-}
-
-
-/**
- * Allocate and initialize a new dispatch table.
- */
-struct _glapi_table *
-_mesa_alloc_dispatch_table(int size)
-{
-   /* Find the larger of Mesa's dispatch table and libGL's dispatch table.
-    * In practice, this'll be the same for stand-alone Mesa.  But for DRI
-    * Mesa we do this to accomodate different versions of libGL and various
-    * DRI drivers.
-    */
-   GLint numEntries = MAX2(_glapi_get_dispatch_table_size(), _gloffset_COUNT);
-   struct _glapi_table *table;
-
-   /* should never happen, but just in case */
-   numEntries = MAX2(numEntries, size);
-
-   table = (struct _glapi_table *) malloc(numEntries * sizeof(_glapi_proc));
-   if (table) {
-      _glapi_proc *entry = (_glapi_proc *) table;
-      GLint i;
-      for (i = 0; i < numEntries; i++) {
-         entry[i] = (_glapi_proc) generic_nop;
-      }
-   }
-   return table;
-}
-
-
-/**
- * Initialize a struct gl_context struct (rendering context).
- *
- * This includes allocating all the other structs and arrays which hang off of
- * the context by pointers.
- * Note that the driver needs to pass in its dd_function_table here since
- * we need to at least call driverFunctions->NewTextureObject to create the
- * default texture objects.
- * 
- * Called by _mesa_create_context().
- *
- * Performs the imports and exports callback tables initialization, and
- * miscellaneous one-time initializations. If no shared context is supplied one
- * is allocated, and increase its reference count.  Setups the GL API dispatch
- * tables.  Initialize the TNL module. Sets the maximum Z buffer depth.
- * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables
- * for debug flags.
- *
- * \param ctx the context to initialize
- * \param api the GL API type to create the context for
- * \param visual describes the visual attributes for this context
- * \param share_list points to context to share textures, display lists,
- *        etc with, or NULL
- * \param driverFunctions table of device driver functions for this context
- *        to use
- * \param driverContext pointer to driver-specific context data
- */
-GLboolean
-_mesa_initialize_context(struct gl_context *ctx,
-                         gl_api api,
-                         const struct gl_config *visual,
-                         struct gl_context *share_list,
-                         const struct dd_function_table *driverFunctions,
-                         void *driverContext)
-{
-   struct gl_shared_state *shared;
-   int i;
-
-   /*ASSERT(driverContext);*/
-   assert(driverFunctions->NewTextureObject);
-   assert(driverFunctions->FreeTexImageData);
-
-   ctx->API = api;
-   ctx->Visual = *visual;
-   ctx->DrawBuffer = NULL;
-   ctx->ReadBuffer = NULL;
-   ctx->WinSysDrawBuffer = NULL;
-   ctx->WinSysReadBuffer = NULL;
-
-   /* misc one-time initializations */
-   one_time_init(ctx);
-
-   /* Plug in driver functions and context pointer here.
-    * This is important because when we call alloc_shared_state() below
-    * we'll call ctx->Driver.NewTextureObject() to create the default
-    * textures.
-    */
-   ctx->Driver = *driverFunctions;
-   ctx->DriverCtx = driverContext;
-
-   if (share_list) {
-      /* share state with another context */
-      shared = share_list->Shared;
-   }
-   else {
-      /* allocate new, unshared state */
-      shared = _mesa_alloc_shared_state(ctx);
-      if (!shared)
-         return GL_FALSE;
-   }
-
-   _glthread_LOCK_MUTEX(shared->Mutex);
-   ctx->Shared = shared;
-   shared->RefCount++;
-   _glthread_UNLOCK_MUTEX(shared->Mutex);
-
-   if (!init_attrib_groups( ctx )) {
-      _mesa_release_shared_state(ctx, ctx->Shared);
-      return GL_FALSE;
-   }
-
-#if FEATURE_dispatch
-   /* setup the API dispatch tables */
-   switch (ctx->API) {
-#if FEATURE_GL
-   case API_OPENGL:
-      ctx->Exec = _mesa_create_exec_table();
-      break;
-#endif
-#if FEATURE_ES1
-   case API_OPENGLES:
-      ctx->Exec = _mesa_create_exec_table_es1();
-      break;
-#endif
-#if FEATURE_ES2
-   case API_OPENGLES2:
-      ctx->Exec = _mesa_create_exec_table_es2();
-      break;
-#endif
-   default:
-      _mesa_problem(ctx, "unknown or unsupported API");
-      break;
-   }
-
-   if (!ctx->Exec) {
-      _mesa_release_shared_state(ctx, ctx->Shared);
-      return GL_FALSE;
-   }
-#endif
-   ctx->CurrentDispatch = ctx->Exec;
-
-   ctx->FragmentProgram._MaintainTexEnvProgram
-      = (_mesa_getenv("MESA_TEX_PROG") != NULL);
-
-   ctx->VertexProgram._MaintainTnlProgram
-      = (_mesa_getenv("MESA_TNL_PROG") != NULL);
-   if (ctx->VertexProgram._MaintainTnlProgram) {
-      /* this is required... */
-      ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
-   }
-
-   /* Mesa core handles all the formats that mesa core knows about.
-    * Drivers will want to override this list with just the formats
-    * they can handle, and confirm that appropriate fallbacks exist in
-    * _mesa_choose_tex_format().
-    */
-   memset(&ctx->TextureFormatSupported, GL_TRUE,
-	  sizeof(ctx->TextureFormatSupported));
-
-   switch (ctx->API) {
-   case API_OPENGL:
-#if FEATURE_dlist
-      ctx->Save = _mesa_create_save_table();
-      if (!ctx->Save) {
-	 _mesa_release_shared_state(ctx, ctx->Shared);
-	 free(ctx->Exec);
-	 return GL_FALSE;
-      }
-
-      _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
-#endif
-      break;
-   case API_OPENGLES:
-      /**
-       * GL_OES_texture_cube_map says
-       * "Initially all texture generation modes are set to REFLECTION_MAP_OES"
-       */
-      for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
-	 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
-	 texUnit->GenS.Mode = GL_REFLECTION_MAP_NV;
-	 texUnit->GenT.Mode = GL_REFLECTION_MAP_NV;
-	 texUnit->GenR.Mode = GL_REFLECTION_MAP_NV;
-	 texUnit->GenS._ModeBit = TEXGEN_REFLECTION_MAP_NV;
-	 texUnit->GenT._ModeBit = TEXGEN_REFLECTION_MAP_NV;
-	 texUnit->GenR._ModeBit = TEXGEN_REFLECTION_MAP_NV;
-      }
-      break;
-   case API_OPENGLES2:
-      ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
-      ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
-      ctx->Point.PointSprite = GL_TRUE;  /* always on for ES 2.x */
-      break;
-   }
-
-   ctx->FirstTimeCurrent = GL_TRUE;
-
-   return GL_TRUE;
-}
-
-
-/**
- * Allocate and initialize a struct gl_context structure.
- * Note that the driver needs to pass in its dd_function_table here since
- * we need to at least call driverFunctions->NewTextureObject to initialize
- * the rendering context.
- *
- * \param api the GL API type to create the context for
- * \param visual a struct gl_config pointer (we copy the struct contents)
- * \param share_list another context to share display lists with or NULL
- * \param driverFunctions points to the dd_function_table into which the
- *        driver has plugged in all its special functions.
- * \param driverContext points to the device driver's private context state
- * 
- * \return pointer to a new __struct gl_contextRec or NULL if error.
- */
-struct gl_context *
-_mesa_create_context(gl_api api,
-                     const struct gl_config *visual,
-                     struct gl_context *share_list,
-                     const struct dd_function_table *driverFunctions,
-                     void *driverContext)
-{
-   struct gl_context *ctx;
-
-   ASSERT(visual);
-   /*ASSERT(driverContext);*/
-
-   ctx = (struct gl_context *) calloc(1, sizeof(struct gl_context));
-   if (!ctx)
-      return NULL;
-
-   if (_mesa_initialize_context(ctx, api, visual, share_list,
-                                driverFunctions, driverContext)) {
-      return ctx;
-   }
-   else {
-      free(ctx);
-      return NULL;
-   }
-}
-
-
-/**
- * Free the data associated with the given context.
- * 
- * But doesn't free the struct gl_context struct itself.
- *
- * \sa _mesa_initialize_context() and init_attrib_groups().
- */
-void
-_mesa_free_context_data( struct gl_context *ctx )
-{
-   if (!_mesa_get_current_context()){
-      /* No current context, but we may need one in order to delete
-       * texture objs, etc.  So temporarily bind the context now.
-       */
-      _mesa_make_current(ctx, NULL, NULL);
-   }
-
-   /* unreference WinSysDraw/Read buffers */
-   _mesa_reference_framebuffer(&ctx->WinSysDrawBuffer, NULL);
-   _mesa_reference_framebuffer(&ctx->WinSysReadBuffer, NULL);
-   _mesa_reference_framebuffer(&ctx->DrawBuffer, NULL);
-   _mesa_reference_framebuffer(&ctx->ReadBuffer, NULL);
-
-   _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL);
-   _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
-   _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL);
-
-   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
-   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
-   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL);
-
-   _mesa_free_attrib_data(ctx);
-   _mesa_free_buffer_objects(ctx);
-   _mesa_free_lighting_data( ctx );
-   _mesa_free_eval_data( ctx );
-   _mesa_free_texture_data( ctx );
-   _mesa_free_matrix_data( ctx );
-   _mesa_free_viewport_data( ctx );
-   _mesa_free_program_data(ctx);
-   _mesa_free_shader_state(ctx);
-   _mesa_free_queryobj_data(ctx);
-   _mesa_free_sync_data(ctx);
-   _mesa_free_varray_data(ctx);
-   _mesa_free_transform_feedback(ctx);
-
-   _mesa_delete_array_object(ctx, ctx->Array.DefaultArrayObj);
-
-#if FEATURE_ARB_pixel_buffer_object
-   _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL);
-   _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL);
-   _mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj, NULL);
-#endif
-
-#if FEATURE_ARB_vertex_buffer_object
-   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL);
-   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL);
-#endif
-
-   /* free dispatch tables */
-   free(ctx->Exec);
-   free(ctx->Save);
-
-   /* Shared context state (display lists, textures, etc) */
-   _mesa_release_shared_state( ctx, ctx->Shared );
-
-   /* needs to be after freeing shared state */
-   _mesa_free_display_list_data(ctx);
-
-   if (ctx->Extensions.String)
-      free((void *) ctx->Extensions.String);
-
-   if (ctx->VersionString)
-      free(ctx->VersionString);
-
-   /* unbind the context if it's currently bound */
-   if (ctx == _mesa_get_current_context()) {
-      _mesa_make_current(NULL, NULL, NULL);
-   }
-}
-
-
-/**
- * Destroy a struct gl_context structure.
- *
- * \param ctx GL context.
- * 
- * Calls _mesa_free_context_data() and frees the gl_context object itself.
- */
-void
-_mesa_destroy_context( struct gl_context *ctx )
-{
-   if (ctx) {
-      _mesa_free_context_data(ctx);
-      free( (void *) ctx );
-   }
-}
-
-
-#if _HAVE_FULL_GL
-/**
- * Copy attribute groups from one context to another.
- * 
- * \param src source context
- * \param dst destination context
- * \param mask bitwise OR of GL_*_BIT flags
- *
- * According to the bits specified in \p mask, copies the corresponding
- * attributes from \p src into \p dst.  For many of the attributes a simple \c
- * memcpy is not enough due to the existence of internal pointers in their data
- * structures.
- */
-void
-_mesa_copy_context( const struct gl_context *src, struct gl_context *dst, GLuint mask )
-{
-   if (mask & GL_ACCUM_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Accum = src->Accum;
-   }
-   if (mask & GL_COLOR_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Color = src->Color;
-   }
-   if (mask & GL_CURRENT_BIT) {
-      /* OK to memcpy */
-      dst->Current = src->Current;
-   }
-   if (mask & GL_DEPTH_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Depth = src->Depth;
-   }
-   if (mask & GL_ENABLE_BIT) {
-      /* no op */
-   }
-   if (mask & GL_EVAL_BIT) {
-      /* OK to memcpy */
-      dst->Eval = src->Eval;
-   }
-   if (mask & GL_FOG_BIT) {
-      /* OK to memcpy */
-      dst->Fog = src->Fog;
-   }
-   if (mask & GL_HINT_BIT) {
-      /* OK to memcpy */
-      dst->Hint = src->Hint;
-   }
-   if (mask & GL_LIGHTING_BIT) {
-      GLuint i;
-      /* begin with memcpy */
-      dst->Light = src->Light;
-      /* fixup linked lists to prevent pointer insanity */
-      make_empty_list( &(dst->Light.EnabledList) );
-      for (i = 0; i < MAX_LIGHTS; i++) {
-         if (dst->Light.Light[i].Enabled) {
-            insert_at_tail(&(dst->Light.EnabledList), &(dst->Light.Light[i]));
-         }
-      }
-   }
-   if (mask & GL_LINE_BIT) {
-      /* OK to memcpy */
-      dst->Line = src->Line;
-   }
-   if (mask & GL_LIST_BIT) {
-      /* OK to memcpy */
-      dst->List = src->List;
-   }
-   if (mask & GL_PIXEL_MODE_BIT) {
-      /* OK to memcpy */
-      dst->Pixel = src->Pixel;
-   }
-   if (mask & GL_POINT_BIT) {
-      /* OK to memcpy */
-      dst->Point = src->Point;
-   }
-   if (mask & GL_POLYGON_BIT) {
-      /* OK to memcpy */
-      dst->Polygon = src->Polygon;
-   }
-   if (mask & GL_POLYGON_STIPPLE_BIT) {
-      /* Use loop instead of memcpy due to problem with Portland Group's
-       * C compiler.  Reported by John Stone.
-       */
-      GLuint i;
-      for (i = 0; i < 32; i++) {
-         dst->PolygonStipple[i] = src->PolygonStipple[i];
-      }
-   }
-   if (mask & GL_SCISSOR_BIT) {
-      /* OK to memcpy */
-      dst->Scissor = src->Scissor;
-   }
-   if (mask & GL_STENCIL_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Stencil = src->Stencil;
-   }
-   if (mask & GL_TEXTURE_BIT) {
-      /* Cannot memcpy because of pointers */
-      _mesa_copy_texture_state(src, dst);
-   }
-   if (mask & GL_TRANSFORM_BIT) {
-      /* OK to memcpy */
-      dst->Transform = src->Transform;
-   }
-   if (mask & GL_VIEWPORT_BIT) {
-      /* Cannot use memcpy, because of pointers in GLmatrix _WindowMap */
-      dst->Viewport.X = src->Viewport.X;
-      dst->Viewport.Y = src->Viewport.Y;
-      dst->Viewport.Width = src->Viewport.Width;
-      dst->Viewport.Height = src->Viewport.Height;
-      dst->Viewport.Near = src->Viewport.Near;
-      dst->Viewport.Far = src->Viewport.Far;
-      _math_matrix_copy(&dst->Viewport._WindowMap, &src->Viewport._WindowMap);
-   }
-
-   /* XXX FIXME:  Call callbacks?
-    */
-   dst->NewState = _NEW_ALL;
-}
-#endif
-
-
-/**
- * Check if the given context can render into the given framebuffer
- * by checking visual attributes.
- *
- * Most of these tests could go away because Mesa is now pretty flexible
- * in terms of mixing rendering contexts with framebuffers.  As long
- * as RGB vs. CI mode agree, we're probably good.
- *
- * \return GL_TRUE if compatible, GL_FALSE otherwise.
- */
-static GLboolean 
-check_compatible(const struct gl_context *ctx,
-                 const struct gl_framebuffer *buffer)
-{
-   const struct gl_config *ctxvis = &ctx->Visual;
-   const struct gl_config *bufvis = &buffer->Visual;
-
-   if (buffer == _mesa_get_incomplete_framebuffer())
-      return GL_TRUE;
-
-#if 0
-   /* disabling this fixes the fgl_glxgears pbuffer demo */
-   if (ctxvis->doubleBufferMode && !bufvis->doubleBufferMode)
-      return GL_FALSE;
-#endif
-   if (ctxvis->stereoMode && !bufvis->stereoMode)
-      return GL_FALSE;
-   if (ctxvis->haveAccumBuffer && !bufvis->haveAccumBuffer)
-      return GL_FALSE;
-   if (ctxvis->haveDepthBuffer && !bufvis->haveDepthBuffer)
-      return GL_FALSE;
-   if (ctxvis->haveStencilBuffer && !bufvis->haveStencilBuffer)
-      return GL_FALSE;
-   if (ctxvis->redMask && ctxvis->redMask != bufvis->redMask)
-      return GL_FALSE;
-   if (ctxvis->greenMask && ctxvis->greenMask != bufvis->greenMask)
-      return GL_FALSE;
-   if (ctxvis->blueMask && ctxvis->blueMask != bufvis->blueMask)
-      return GL_FALSE;
-#if 0
-   /* disabled (see bug 11161) */
-   if (ctxvis->depthBits && ctxvis->depthBits != bufvis->depthBits)
-      return GL_FALSE;
-#endif
-   if (ctxvis->stencilBits && ctxvis->stencilBits != bufvis->stencilBits)
-      return GL_FALSE;
-
-   return GL_TRUE;
-}
-
-
-/**
- * Do one-time initialization for the given framebuffer.  Specifically,
- * ask the driver for the window's current size and update the framebuffer
- * object to match.
- * Really, the device driver should totally take care of this.
- */
-static void
-initialize_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb)
-{
-   GLuint width, height;
-   if (ctx->Driver.GetBufferSize) {
-      ctx->Driver.GetBufferSize(fb, &width, &height);
-      if (ctx->Driver.ResizeBuffers)
-         ctx->Driver.ResizeBuffers(ctx, fb, width, height);
-      fb->Initialized = GL_TRUE;
-   }
-}
-
-
-/**
- * Check if the viewport/scissor size has not yet been initialized.
- * Initialize the size if the given width and height are non-zero.
- */
-void
-_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height)
-{
-   if (!ctx->ViewportInitialized && width > 0 && height > 0) {
-      /* Note: set flag here, before calling _mesa_set_viewport(), to prevent
-       * potential infinite recursion.
-       */
-      ctx->ViewportInitialized = GL_TRUE;
-      _mesa_set_viewport(ctx, 0, 0, width, height);
-      _mesa_set_scissor(ctx, 0, 0, width, height);
-   }
-}
-
-
-/**
- * Bind the given context to the given drawBuffer and readBuffer and
- * make it the current context for the calling thread.
- * We'll render into the drawBuffer and read pixels from the
- * readBuffer (i.e. glRead/CopyPixels, glCopyTexImage, etc).
- *
- * We check that the context's and framebuffer's visuals are compatible
- * and return immediately if they're not.
- *
- * \param newCtx  the new GL context. If NULL then there will be no current GL
- *                context.
- * \param drawBuffer  the drawing framebuffer
- * \param readBuffer  the reading framebuffer
- */
-GLboolean
-_mesa_make_current( struct gl_context *newCtx,
-                    struct gl_framebuffer *drawBuffer,
-                    struct gl_framebuffer *readBuffer )
-{
-   GET_CURRENT_CONTEXT(curCtx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(newCtx, "_mesa_make_current()\n");
-
-   /* Check that the context's and framebuffer's visuals are compatible.
-    */
-   if (newCtx && drawBuffer && newCtx->WinSysDrawBuffer != drawBuffer) {
-      if (!check_compatible(newCtx, drawBuffer)) {
-         _mesa_warning(newCtx,
-              "MakeCurrent: incompatible visuals for context and drawbuffer");
-         return GL_FALSE;
-      }
-   }
-   if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) {
-      if (!check_compatible(newCtx, readBuffer)) {
-         _mesa_warning(newCtx,
-              "MakeCurrent: incompatible visuals for context and readbuffer");
-         return GL_FALSE;
-      }
-   }
-
-   if (curCtx && 
-      (curCtx->WinSysDrawBuffer || curCtx->WinSysReadBuffer) && /* make sure this context is valid for flushing */
-      curCtx != newCtx)
-      _mesa_flush(curCtx);
-
-   /* We used to call _glapi_check_multithread() here.  Now do it in drivers */
-   _glapi_set_context((void *) newCtx);
-   ASSERT(_mesa_get_current_context() == newCtx);
-
-   if (!newCtx) {
-      _glapi_set_dispatch(NULL);  /* none current */
-   }
-   else {
-      _glapi_set_dispatch(newCtx->CurrentDispatch);
-
-      if (drawBuffer && readBuffer) {
-	 /* TODO: check if newCtx and buffer's visual match??? */
-
-         ASSERT(drawBuffer->Name == 0);
-         ASSERT(readBuffer->Name == 0);
-         _mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer);
-         _mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer);
-
-         /*
-          * Only set the context's Draw/ReadBuffer fields if they're NULL
-          * or not bound to a user-created FBO.
-          */
-         if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
-            /* KW: merge conflict here, revisit. 
-             */
-            /* fix up the fb fields - these will end up wrong otherwise
-             * if the DRIdrawable changes, and everything relies on them.
-             * This is a bit messy (same as needed in _mesa_BindFramebufferEXT)
-             */
-            unsigned int i;
-            GLenum buffers[MAX_DRAW_BUFFERS];
-
-            _mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);
-
-            for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) {
-               buffers[i] = newCtx->Color.DrawBuffer[i];
-            }
-
-            _mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers,
-                              buffers, NULL);
-         }
-         if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {
-            _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);
-         }
-
-         /* XXX only set this flag if we're really changing the draw/read
-          * framebuffer bindings.
-          */
-	 newCtx->NewState |= _NEW_BUFFERS;
-
-#if 1
-         /* We want to get rid of these lines: */
-
-#if _HAVE_FULL_GL
-         if (!drawBuffer->Initialized) {
-            initialize_framebuffer_size(newCtx, drawBuffer);
-         }
-         if (readBuffer != drawBuffer && !readBuffer->Initialized) {
-            initialize_framebuffer_size(newCtx, readBuffer);
-         }
-
-	 _mesa_resizebuffers(newCtx);
-#endif
-
-#else
-         /* We want the drawBuffer and readBuffer to be initialized by
-          * the driver.
-          * This generally means the Width and Height match the actual
-          * window size and the renderbuffers (both hardware and software
-          * based) are allocated to match.  The later can generally be
-          * done with a call to _mesa_resize_framebuffer().
-          *
-          * It's theoretically possible for a buffer to have zero width
-          * or height, but for now, assert check that the driver did what's
-          * expected of it.
-          */
-         ASSERT(drawBuffer->Width > 0);
-         ASSERT(drawBuffer->Height > 0);
-#endif
-
-         if (drawBuffer) {
-            _mesa_check_init_viewport(newCtx,
-                                      drawBuffer->Width, drawBuffer->Height);
-         }
-      }
-
-      if (newCtx->FirstTimeCurrent) {
-         _mesa_compute_version(newCtx);
-
-         newCtx->Extensions.String = _mesa_make_extension_string(newCtx);
-
-         check_context_limits(newCtx);
-
-         /* We can use this to help debug user's problems.  Tell them to set
-          * the MESA_INFO env variable before running their app.  Then the
-          * first time each context is made current we'll print some useful
-          * information.
-          */
-	 if (_mesa_getenv("MESA_INFO")) {
-	    _mesa_print_info();
-	 }
-
-	 newCtx->FirstTimeCurrent = GL_FALSE;
-      }
-   }
-   
-   return GL_TRUE;
-}
-
-
-/**
- * Make context 'ctx' share the display lists, textures and programs
- * that are associated with 'ctxToShare'.
- * Any display lists, textures or programs associated with 'ctx' will
- * be deleted if nobody else is sharing them.
- */
-GLboolean
-_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare)
-{
-   if (ctx && ctxToShare && ctx->Shared && ctxToShare->Shared) {
-      struct gl_shared_state *oldSharedState = ctx->Shared;
-
-      ctx->Shared = ctxToShare->Shared;
-      
-      _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
-      ctx->Shared->RefCount++;
-      _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
-      update_default_objects(ctx);
-
-      _mesa_release_shared_state(ctx, oldSharedState);
-
-      return GL_TRUE;
-   }
-   else {
-      return GL_FALSE;
-   }
-}
-
-
-
-/**
- * \return pointer to the current GL context for this thread.
- * 
- * Calls _glapi_get_context(). This isn't the fastest way to get the current
- * context.  If you need speed, see the #GET_CURRENT_CONTEXT macro in
- * context.h.
- */
-struct gl_context *
-_mesa_get_current_context( void )
-{
-   return (struct gl_context *) _glapi_get_context();
-}
-
-
-/**
- * Get context's current API dispatch table.
- *
- * It'll either be the immediate-mode execute dispatcher or the display list
- * compile dispatcher.
- * 
- * \param ctx GL context.
- *
- * \return pointer to dispatch_table.
- *
- * Simply returns __struct gl_contextRec::CurrentDispatch.
- */
-struct _glapi_table *
-_mesa_get_dispatch(struct gl_context *ctx)
-{
-   return ctx->CurrentDispatch;
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name Miscellaneous functions                                     */
-/**********************************************************************/
-/*@{*/
-
-/**
- * Record an error.
- *
- * \param ctx GL context.
- * \param error error code.
- * 
- * Records the given error code and call the driver's dd_function_table::Error
- * function if defined.
- *
- * \sa
- * This is called via _mesa_error().
- */
-void
-_mesa_record_error(struct gl_context *ctx, GLenum error)
-{
-   if (!ctx)
-      return;
-
-   if (ctx->ErrorValue == GL_NO_ERROR) {
-      ctx->ErrorValue = error;
-   }
-
-   /* Call device driver's error handler, if any.  This is used on the Mac. */
-   if (ctx->Driver.Error) {
-      ctx->Driver.Error(ctx);
-   }
-}
-
-
-/**
- * Flush commands and wait for completion.
- */
-void
-_mesa_finish(struct gl_context *ctx)
-{
-   FLUSH_CURRENT( ctx, 0 );
-   if (ctx->Driver.Finish) {
-      ctx->Driver.Finish(ctx);
-   }
-}
-
-
-/**
- * Flush commands.
- */
-void
-_mesa_flush(struct gl_context *ctx)
-{
-   FLUSH_CURRENT( ctx, 0 );
-   if (ctx->Driver.Flush) {
-      ctx->Driver.Flush(ctx);
-   }
-}
-
-
-
-/**
- * Execute glFinish().
- *
- * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the
- * dd_function_table::Finish driver callback, if not NULL.
- */
-void GLAPIENTRY
-_mesa_Finish(void)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-   _mesa_finish(ctx);
-}
-
-
-/**
- * Execute glFlush().
- *
- * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the
- * dd_function_table::Flush driver callback, if not NULL.
- */
-void GLAPIENTRY
-_mesa_Flush(void)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-   _mesa_flush(ctx);
-}
-
-
-/**
- * Set mvp_with_dp4 flag.  If a driver has a preference for DP4 over
- * MUL/MAD, or vice versa, call this function to register that.
- * Otherwise we default to MUL/MAD.
- */
-void
-_mesa_set_mvp_with_dp4( struct gl_context *ctx,
-                        GLboolean flag )
-{
-   ctx->mvp_with_dp4 = flag;
-}
-
-
-
-/**
- * Prior to drawing anything with glBegin, glDrawArrays, etc. this function
- * is called to see if it's valid to render.  This involves checking that
- * the current shader is valid and the framebuffer is complete.
- * If an error is detected it'll be recorded here.
- * \return GL_TRUE if OK to render, GL_FALSE if not
- */
-GLboolean
-_mesa_valid_to_render(struct gl_context *ctx, const char *where)
-{
-   bool vert_from_glsl_shader = false;
-   bool geom_from_glsl_shader = false;
-   bool frag_from_glsl_shader = false;
-
-   /* This depends on having up to date derived state (shaders) */
-   if (ctx->NewState)
-      _mesa_update_state(ctx);
-
-   if (ctx->Shader.CurrentVertexProgram) {
-      vert_from_glsl_shader = true;
-
-      if (!ctx->Shader.CurrentVertexProgram->LinkStatus) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "%s(shader not linked)", where);
-         return GL_FALSE;
-      }
-#if 0 /* not normally enabled */
-      {
-         char errMsg[100];
-         if (!_mesa_validate_shader_program(ctx,
-					    ctx->Shader.CurrentVertexProgram,
-                                            errMsg)) {
-            _mesa_warning(ctx, "Shader program %u is invalid: %s",
-                          ctx->Shader.CurrentVertexProgram->Name, errMsg);
-         }
-      }
-#endif
-   }
-
-   if (ctx->Shader.CurrentGeometryProgram) {
-      geom_from_glsl_shader = true;
-
-      if (!ctx->Shader.CurrentGeometryProgram->LinkStatus) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "%s(shader not linked)", where);
-         return GL_FALSE;
-      }
-#if 0 /* not normally enabled */
-      {
-         char errMsg[100];
-         if (!_mesa_validate_shader_program(ctx,
-					    ctx->Shader.CurrentGeometryProgram,
-                                            errMsg)) {
-            _mesa_warning(ctx, "Shader program %u is invalid: %s",
-                          ctx->Shader.CurrentGeometryProgram->Name, errMsg);
-         }
-      }
-#endif
-   }
-
-   if (ctx->Shader.CurrentFragmentProgram) {
-      frag_from_glsl_shader = true;
-
-      if (!ctx->Shader.CurrentFragmentProgram->LinkStatus) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "%s(shader not linked)", where);
-         return GL_FALSE;
-      }
-#if 0 /* not normally enabled */
-      {
-         char errMsg[100];
-         if (!_mesa_validate_shader_program(ctx,
-					    ctx->Shader.CurrentFragmentProgram,
-                                            errMsg)) {
-            _mesa_warning(ctx, "Shader program %u is invalid: %s",
-                          ctx->Shader.CurrentFragmentProgram->Name, errMsg);
-         }
-      }
-#endif
-   }
-
-   /* Any shader stages that are not supplied by the GLSL shader and have
-    * assembly shaders enabled must now be validated.
-    */
-   if (!vert_from_glsl_shader
-       && ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-		  "%s(vertex program not valid)", where);
-      return GL_FALSE;
-   }
-
-   /* FINISHME: If GL_NV_geometry_program4 is ever supported, the current
-    * FINISHME: geometry program should validated here.
-    */
-   (void) geom_from_glsl_shader;
-
-   if (!frag_from_glsl_shader) {
-      if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
-	 _mesa_error(ctx, GL_INVALID_OPERATION,
-		     "%s(fragment program not valid)", where);
-	 return GL_FALSE;
-      }
-
-      /* If drawing to integer-valued color buffers, there must be an
-       * active fragment shader (GL_EXT_texture_integer).
-       */
-      if (ctx->DrawBuffer && ctx->DrawBuffer->_IntegerColor) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "%s(integer format but no fragment shader)", where);
-         return GL_FALSE;
-      }
-   }
-
-   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
-      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
-                  "%s(incomplete framebuffer)", where);
-      return GL_FALSE;
-   }
-
-#ifdef DEBUG
-   if (ctx->Shader.Flags & GLSL_LOG) {
-      struct gl_shader_program *shProg[MESA_SHADER_TYPES];
-      gl_shader_type i;
-
-      shProg[MESA_SHADER_VERTEX] = ctx->Shader.CurrentVertexProgram;
-      shProg[MESA_SHADER_GEOMETRY] = ctx->Shader.CurrentGeometryProgram;
-      shProg[MESA_SHADER_FRAGMENT] = ctx->Shader.CurrentFragmentProgram;
-
-      for (i = 0; i < MESA_SHADER_TYPES; i++) {
-	 struct gl_shader *sh;
-
-	 if (shProg[i] == NULL || shProg[i]->_Used
-	     || shProg[i]->_LinkedShaders[i] == NULL)
-	    continue;
-
-	 /* This is the first time this shader is being used.
-	  * Append shader's constants/uniforms to log file.
-	  *
-	  * The logic is a little odd here.  We only want to log data for each
-	  * shader target that will actually be used, and we only want to log
-	  * it once.  It's possible to have a program bound to the vertex
-	  * shader target that also supplied a fragment shader.  If that
-	  * program isn't also bound to the fragment shader target we don't
-	  * want to log its fragment data.
-	  */
-	 sh = shProg[i]->_LinkedShaders[i];
-	 switch (sh->Type) {
-	 case GL_VERTEX_SHADER:
-	    _mesa_append_uniforms_to_file(sh, &shProg[i]->VertexProgram->Base);
-	    break;
-
-	 case GL_GEOMETRY_SHADER_ARB:
-	    _mesa_append_uniforms_to_file(sh,
-					  &shProg[i]->GeometryProgram->Base);
-	    break;
-
-	 case GL_FRAGMENT_SHADER:
-	    _mesa_append_uniforms_to_file(sh,
-					  &shProg[i]->FragmentProgram->Base);
-	    break;
-	 }
-      }
-
-      for (i = 0; i < MESA_SHADER_TYPES; i++) {
-	 if (shProg[i] != NULL)
-	    shProg[i]->_Used = GL_TRUE;
-      }
-   }
-#endif
-
-   return GL_TRUE;
-}
-
-
-/*@}*/
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.3

+ *

+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

+ * Copyright (C) 2008  VMware, Inc.  All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/**

+ * \file context.c

+ * Mesa context/visual/framebuffer management functions.

+ * \author Brian Paul

+ */

+

+/**

+ * \mainpage Mesa Main Module

+ *

+ * \section MainIntroduction Introduction

+ *

+ * The Mesa Main module consists of all the files in the main/ directory.

+ * Among the features of this module are:

+ * <UL>

+ * <LI> Structures to represent most GL state </LI>

+ * <LI> State set/get functions </LI>

+ * <LI> Display lists </LI>

+ * <LI> Texture unit, object and image handling </LI>

+ * <LI> Matrix and attribute stacks </LI>

+ * </UL>

+ *

+ * Other modules are responsible for API dispatch, vertex transformation,

+ * point/line/triangle setup, rasterization, vertex array caching,

+ * vertex/fragment programs/shaders, etc.

+ *

+ *

+ * \section AboutDoxygen About Doxygen

+ *

+ * If you're viewing this information as Doxygen-generated HTML you'll

+ * see the documentation index at the top of this page.

+ *

+ * The first line lists the Mesa source code modules.

+ * The second line lists the indexes available for viewing the documentation

+ * for each module.

+ *

+ * Selecting the <b>Main page</b> link will display a summary of the module

+ * (this page).

+ *

+ * Selecting <b>Data Structures</b> will list all C structures.

+ *

+ * Selecting the <b>File List</b> link will list all the source files in

+ * the module.

+ * Selecting a filename will show a list of all functions defined in that file.

+ *

+ * Selecting the <b>Data Fields</b> link will display a list of all

+ * documented structure members.

+ *

+ * Selecting the <b>Globals</b> link will display a list

+ * of all functions, structures, global variables and macros in the module.

+ *

+ */

+

+

+#include "glheader.h"

+#include "mfeatures.h"

+#include "imports.h"

+#include "accum.h"

+#include "api_exec.h"

+#include "arrayobj.h"

+#include "attrib.h"

+#include "blend.h"

+#include "buffers.h"

+#include "bufferobj.h"

+#include "context.h"

+#include "cpuinfo.h"

+#include "debug.h"

+#include "depth.h"

+#include "dlist.h"

+#include "eval.h"

+#include "extensions.h"

+#include "fbobject.h"

+#include "feedback.h"

+#include "fog.h"

+#include "formats.h"

+#include "framebuffer.h"

+#include "hint.h"

+#include "hash.h"

+#include "light.h"

+#include "lines.h"

+#include "macros.h"

+#include "matrix.h"

+#include "multisample.h"

+#include "pixel.h"

+#include "pixelstore.h"

+#include "points.h"

+#include "polygon.h"

+#include "queryobj.h"

+#include "syncobj.h"

+#include "rastpos.h"

+#include "remap.h"

+#include "scissor.h"

+#include "shared.h"

+#include "shaderobj.h"

+#include "simple_list.h"

+#include "state.h"

+#include "stencil.h"

+#include "texcompress_s3tc.h"

+#include "texstate.h"

+#include "transformfeedback.h"

+#include "mtypes.h"

+#include "varray.h"

+#include "version.h"

+#include "viewport.h"

+#include "vtxfmt.h"

+#include "program/program.h"

+#include "program/prog_print.h"

+#if _HAVE_FULL_GL

+#include "math/m_matrix.h"

+#endif

+#include "main/dispatch.h" /* for _gloffset_COUNT */

+

+#ifdef USE_SPARC_ASM

+#include "sparc/sparc.h"

+#endif

+

+#include "glsl_parser_extras.h"

+#include <stdbool.h>

+

+

+#ifndef MESA_VERBOSE

+int MESA_VERBOSE = 0;

+#endif

+

+#ifndef MESA_DEBUG_FLAGS

+int MESA_DEBUG_FLAGS = 0;

+#endif

+

+

+/* ubyte -> float conversion */

+GLfloat _mesa_ubyte_to_float_color_tab[256];

+

+

+

+/**

+ * Swap buffers notification callback.

+ * 

+ * \param ctx GL context.

+ *

+ * Called by window system just before swapping buffers.

+ * We have to finish any pending rendering.

+ */

+void

+_mesa_notifySwapBuffers(struct gl_context *ctx)

+{

+   if (MESA_VERBOSE & VERBOSE_SWAPBUFFERS)

+      _mesa_debug(ctx, "SwapBuffers\n");

+   FLUSH_CURRENT( ctx, 0 );

+   if (ctx->Driver.Flush) {

+      ctx->Driver.Flush(ctx);

+   }

+}

+

+

+/**********************************************************************/

+/** \name GL Visual allocation/destruction                            */

+/**********************************************************************/

+/*@{*/

+

+/**

+ * Allocates a struct gl_config structure and initializes it via

+ * _mesa_initialize_visual().

+ * 

+ * \param dbFlag double buffering

+ * \param stereoFlag stereo buffer

+ * \param depthBits requested bits per depth buffer value. Any value in [0, 32]

+ * is acceptable but the actual depth type will be GLushort or GLuint as

+ * needed.

+ * \param stencilBits requested minimum bits per stencil buffer value

+ * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer.

+ * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE

+ * \param redBits number of bits per color component in frame buffer for RGB(A)

+ * mode.  We always use 8 in core Mesa though.

+ * \param greenBits same as above.

+ * \param blueBits same as above.

+ * \param alphaBits same as above.

+ * \param numSamples not really used.

+ * 

+ * \return pointer to new struct gl_config or NULL if requested parameters can't be

+ * met.

+ *

+ * \note Need to add params for level and numAuxBuffers (at least)

+ */

+struct gl_config *

+_mesa_create_visual( GLboolean dbFlag,

+                     GLboolean stereoFlag,

+                     GLint redBits,

+                     GLint greenBits,

+                     GLint blueBits,

+                     GLint alphaBits,

+                     GLint depthBits,

+                     GLint stencilBits,

+                     GLint accumRedBits,

+                     GLint accumGreenBits,

+                     GLint accumBlueBits,

+                     GLint accumAlphaBits,

+                     GLint numSamples )

+{

+   struct gl_config *vis = CALLOC_STRUCT(gl_config);

+   if (vis) {

+      if (!_mesa_initialize_visual(vis, dbFlag, stereoFlag,

+                                   redBits, greenBits, blueBits, alphaBits,

+                                   depthBits, stencilBits,

+                                   accumRedBits, accumGreenBits,

+                                   accumBlueBits, accumAlphaBits,

+                                   numSamples)) {

+         free(vis);

+         return NULL;

+      }

+   }

+   return vis;

+}

+

+

+/**

+ * Makes some sanity checks and fills in the fields of the struct

+ * gl_config object with the given parameters.  If the caller needs to

+ * set additional fields, he should just probably init the whole

+ * gl_config object himself.

+ *

+ * \return GL_TRUE on success, or GL_FALSE on failure.

+ *

+ * \sa _mesa_create_visual() above for the parameter description.

+ */

+GLboolean

+_mesa_initialize_visual( struct gl_config *vis,

+                         GLboolean dbFlag,

+                         GLboolean stereoFlag,

+                         GLint redBits,

+                         GLint greenBits,

+                         GLint blueBits,

+                         GLint alphaBits,

+                         GLint depthBits,

+                         GLint stencilBits,

+                         GLint accumRedBits,

+                         GLint accumGreenBits,

+                         GLint accumBlueBits,

+                         GLint accumAlphaBits,

+                         GLint numSamples )

+{

+   assert(vis);

+

+   if (depthBits < 0 || depthBits > 32) {

+      return GL_FALSE;

+   }

+   if (stencilBits < 0 || stencilBits > STENCIL_BITS) {

+      return GL_FALSE;

+   }

+   assert(accumRedBits >= 0);

+   assert(accumGreenBits >= 0);

+   assert(accumBlueBits >= 0);

+   assert(accumAlphaBits >= 0);

+

+   vis->rgbMode          = GL_TRUE;

+   vis->doubleBufferMode = dbFlag;

+   vis->stereoMode       = stereoFlag;

+

+   vis->redBits          = redBits;

+   vis->greenBits        = greenBits;

+   vis->blueBits         = blueBits;

+   vis->alphaBits        = alphaBits;

+   vis->rgbBits          = redBits + greenBits + blueBits;

+

+   vis->indexBits      = 0;

+   vis->depthBits      = depthBits;

+   vis->stencilBits    = stencilBits;

+

+   vis->accumRedBits   = accumRedBits;

+   vis->accumGreenBits = accumGreenBits;

+   vis->accumBlueBits  = accumBlueBits;

+   vis->accumAlphaBits = accumAlphaBits;

+

+   vis->haveAccumBuffer   = accumRedBits > 0;

+   vis->haveDepthBuffer   = depthBits > 0;

+   vis->haveStencilBuffer = stencilBits > 0;

+

+   vis->numAuxBuffers = 0;

+   vis->level = 0;

+   vis->sampleBuffers = numSamples > 0 ? 1 : 0;

+   vis->samples = numSamples;

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Destroy a visual and free its memory.

+ *

+ * \param vis visual.

+ * 

+ * Frees the visual structure.

+ */

+void

+_mesa_destroy_visual( struct gl_config *vis )

+{

+   free(vis);

+}

+

+/*@}*/

+

+

+/**********************************************************************/

+/** \name Context allocation, initialization, destroying

+ *

+ * The purpose of the most initialization functions here is to provide the

+ * default state values according to the OpenGL specification.

+ */

+/**********************************************************************/

+/*@{*/

+

+

+/**

+ * This is lame.  gdb only seems to recognize enum types that are

+ * actually used somewhere.  We want to be able to print/use enum

+ * values such as TEXTURE_2D_INDEX in gdb.  But we don't actually use

+ * the gl_texture_index type anywhere.  Thus, this lame function.

+ */

+static void

+dummy_enum_func(void)

+{

+   gl_buffer_index bi = BUFFER_FRONT_LEFT;

+   gl_face_index fi = FACE_POS_X;

+   gl_frag_attrib fa = FRAG_ATTRIB_WPOS;

+   gl_frag_result fr = FRAG_RESULT_DEPTH;

+   gl_texture_index ti = TEXTURE_2D_ARRAY_INDEX;

+   gl_vert_attrib va = VERT_ATTRIB_POS;

+   gl_vert_result vr = VERT_RESULT_HPOS;

+   gl_geom_attrib ga = GEOM_ATTRIB_POSITION;

+   gl_geom_result gr = GEOM_RESULT_POS;

+

+   (void) bi;

+   (void) fi;

+   (void) fa;

+   (void) fr;

+   (void) ti;

+   (void) va;

+   (void) vr;

+   (void) ga;

+   (void) gr;

+}

+

+

+/**

+ * One-time initialization mutex lock.

+ *

+ * \sa Used by one_time_init().

+ */

+_glthread_DECLARE_STATIC_MUTEX(OneTimeLock);

+

+

+

+/**

+ * Calls all the various one-time-init functions in Mesa.

+ *

+ * While holding a global mutex lock, calls several initialization functions,

+ * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is

+ * defined.

+ *

+ * \sa _math_init().

+ */

+static void

+one_time_init( struct gl_context *ctx )

+{

+   static GLbitfield api_init_mask = 0x0;

+

+   _glthread_LOCK_MUTEX(OneTimeLock);

+

+   /* truly one-time init */

+   if (!api_init_mask) {

+      GLuint i;

+

+      /* do some implementation tests */

+      assert( sizeof(GLbyte) == 1 );

+      assert( sizeof(GLubyte) == 1 );

+      assert( sizeof(GLshort) == 2 );

+      assert( sizeof(GLushort) == 2 );

+      assert( sizeof(GLint) == 4 );

+      assert( sizeof(GLuint) == 4 );

+

+      _mesa_get_cpu_features();

+

+      _mesa_init_sqrt_table();

+

+      /* context dependence is never a one-time thing... */

+      _mesa_init_get_hash(ctx);

+

+      for (i = 0; i < 256; i++) {

+         _mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F;

+      }

+

+#if defined(DEBUG) && defined(__DATE__) && defined(__TIME__)

+      if (MESA_VERBOSE != 0) {

+	 _mesa_debug(ctx, "Mesa %s DEBUG build %s %s\n",

+		     MESA_VERSION_STRING, __DATE__, __TIME__);

+      }

+#endif

+

+#ifdef DEBUG

+      _mesa_test_formats();

+#endif

+   }

+

+   /* per-API one-time init */

+   if (!(api_init_mask & (1 << ctx->API))) {

+      /*

+       * This is fine as ES does not use the remap table, but it may not be

+       * future-proof.  We cannot always initialize the remap table because

+       * when an app is linked to libGLES*, there are not enough dynamic

+       * entries.

+       */

+      if (ctx->API == API_OPENGL)

+         _mesa_init_remap_table();

+   }

+

+   api_init_mask |= 1 << ctx->API;

+

+   _glthread_UNLOCK_MUTEX(OneTimeLock);

+

+   /* Hopefully atexit() is widely available.  If not, we may need some

+    * #ifdef tests here.

+    */

+   atexit(_mesa_destroy_shader_compiler);

+

+   dummy_enum_func();

+}

+

+

+/**

+ * Initialize fields of gl_current_attrib (aka ctx->Current.*)

+ */

+static void

+_mesa_init_current(struct gl_context *ctx)

+{

+   GLuint i;

+

+   /* Init all to (0,0,0,1) */

+   for (i = 0; i < Elements(ctx->Current.Attrib); i++) {

+      ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 );

+   }

+

+   /* redo special cases: */

+   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 0.0 );

+   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 );

+   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 );

+   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 1.0 );

+   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX], 1.0, 0.0, 0.0, 1.0 );

+   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG], 1.0, 0.0, 0.0, 1.0 );

+}

+

+

+/**

+ * Init vertex/fragment/geometry program limits.

+ * Important: drivers should override these with actual limits.

+ */

+static void

+init_program_limits(GLenum type, struct gl_program_constants *prog)

+{

+   prog->MaxInstructions = MAX_PROGRAM_INSTRUCTIONS;

+   prog->MaxAluInstructions = MAX_PROGRAM_INSTRUCTIONS;

+   prog->MaxTexInstructions = MAX_PROGRAM_INSTRUCTIONS;

+   prog->MaxTexIndirections = MAX_PROGRAM_INSTRUCTIONS;

+   prog->MaxTemps = MAX_PROGRAM_TEMPS;

+   prog->MaxEnvParams = MAX_PROGRAM_ENV_PARAMS;

+   prog->MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS;

+   prog->MaxUniformComponents = 4 * MAX_UNIFORMS;

+

+   switch (type) {

+   case GL_VERTEX_PROGRAM_ARB:

+      prog->MaxParameters = MAX_VERTEX_PROGRAM_PARAMS;

+      prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS;

+      prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS;

+      break;

+   case GL_FRAGMENT_PROGRAM_ARB:

+      prog->MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS;

+      prog->MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS;

+      prog->MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS;

+      break;

+   case MESA_GEOMETRY_PROGRAM:

+      prog->MaxParameters = MAX_NV_VERTEX_PROGRAM_PARAMS;

+      prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS;

+      prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS;

+

+      prog->MaxGeometryTextureImageUnits = MAX_GEOMETRY_TEXTURE_IMAGE_UNITS;

+      prog->MaxGeometryVaryingComponents = MAX_GEOMETRY_VARYING_COMPONENTS;

+      prog->MaxVertexVaryingComponents = MAX_VERTEX_VARYING_COMPONENTS;

+      prog->MaxGeometryUniformComponents = MAX_GEOMETRY_UNIFORM_COMPONENTS;

+      prog->MaxGeometryOutputVertices = MAX_GEOMETRY_OUTPUT_VERTICES;

+      prog->MaxGeometryTotalOutputComponents = MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS;

+      break;

+   default:

+      assert(0 && "Bad program type in init_program_limits()");

+   }

+

+   /* Set the native limits to zero.  This implies that there is no native

+    * support for shaders.  Let the drivers fill in the actual values.

+    */

+   prog->MaxNativeInstructions = 0;

+   prog->MaxNativeAluInstructions = 0;

+   prog->MaxNativeTexInstructions = 0;

+   prog->MaxNativeTexIndirections = 0;

+   prog->MaxNativeAttribs = 0;

+   prog->MaxNativeTemps = 0;

+   prog->MaxNativeAddressRegs = 0;

+   prog->MaxNativeParameters = 0;

+

+   /* Set GLSL datatype range/precision info assuming IEEE float values.

+    * Drivers should override these defaults as needed.

+    */

+   prog->MediumFloat.RangeMin = 127;

+   prog->MediumFloat.RangeMax = 127;

+   prog->MediumFloat.Precision = 23;

+   prog->LowFloat = prog->HighFloat = prog->MediumFloat;

+

+   /* Assume ints are stored as floats for now, since this is the least-common

+    * denominator.  The OpenGL ES spec implies (page 132) that the precision

+    * of integer types should be 0.  Practically speaking, IEEE

+    * single-precision floating point values can only store integers in the

+    * range [-0x01000000, 0x01000000] without loss of precision.

+    */

+   prog->MediumInt.RangeMin = 24;

+   prog->MediumInt.RangeMax = 24;

+   prog->MediumInt.Precision = 0;

+   prog->LowInt = prog->HighInt = prog->MediumInt;

+}

+

+

+/**

+ * Initialize fields of gl_constants (aka ctx->Const.*).

+ * Use defaults from config.h.  The device drivers will often override

+ * some of these values (such as number of texture units).

+ */

+static void 

+_mesa_init_constants(struct gl_context *ctx)

+{

+   assert(ctx);

+

+   /* Constants, may be overriden (usually only reduced) by device drivers */

+   ctx->Const.MaxTextureMbytes = MAX_TEXTURE_MBYTES;

+   ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS;

+   ctx->Const.Max3DTextureLevels = MAX_3D_TEXTURE_LEVELS;

+   ctx->Const.MaxCubeTextureLevels = MAX_CUBE_TEXTURE_LEVELS;

+   ctx->Const.MaxTextureRectSize = MAX_TEXTURE_RECT_SIZE;

+   ctx->Const.MaxArrayTextureLayers = MAX_ARRAY_TEXTURE_LAYERS;

+   ctx->Const.MaxTextureCoordUnits = MAX_TEXTURE_COORD_UNITS;

+   ctx->Const.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;

+   ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits,

+                                     ctx->Const.MaxTextureImageUnits);

+   ctx->Const.MaxTextureMaxAnisotropy = MAX_TEXTURE_MAX_ANISOTROPY;

+   ctx->Const.MaxTextureLodBias = MAX_TEXTURE_LOD_BIAS;

+   ctx->Const.MaxArrayLockSize = MAX_ARRAY_LOCK_SIZE;

+   ctx->Const.SubPixelBits = SUB_PIXEL_BITS;

+   ctx->Const.MinPointSize = MIN_POINT_SIZE;

+   ctx->Const.MaxPointSize = MAX_POINT_SIZE;

+   ctx->Const.MinPointSizeAA = MIN_POINT_SIZE;

+   ctx->Const.MaxPointSizeAA = MAX_POINT_SIZE;

+   ctx->Const.PointSizeGranularity = (GLfloat) POINT_SIZE_GRANULARITY;

+   ctx->Const.MinLineWidth = MIN_LINE_WIDTH;

+   ctx->Const.MaxLineWidth = MAX_LINE_WIDTH;

+   ctx->Const.MinLineWidthAA = MIN_LINE_WIDTH;

+   ctx->Const.MaxLineWidthAA = MAX_LINE_WIDTH;

+   ctx->Const.LineWidthGranularity = (GLfloat) LINE_WIDTH_GRANULARITY;

+   ctx->Const.MaxColorTableSize = MAX_COLOR_TABLE_SIZE;

+   ctx->Const.MaxClipPlanes = MAX_CLIP_PLANES;

+   ctx->Const.MaxLights = MAX_LIGHTS;

+   ctx->Const.MaxShininess = 128.0;

+   ctx->Const.MaxSpotExponent = 128.0;

+   ctx->Const.MaxViewportWidth = MAX_WIDTH;

+   ctx->Const.MaxViewportHeight = MAX_HEIGHT;

+#if FEATURE_ARB_vertex_program

+   init_program_limits(GL_VERTEX_PROGRAM_ARB, &ctx->Const.VertexProgram);

+#endif

+#if FEATURE_ARB_fragment_program

+   init_program_limits(GL_FRAGMENT_PROGRAM_ARB, &ctx->Const.FragmentProgram);

+#endif

+#if FEATURE_ARB_geometry_shader4

+   init_program_limits(MESA_GEOMETRY_PROGRAM, &ctx->Const.GeometryProgram);

+#endif

+   ctx->Const.MaxProgramMatrices = MAX_PROGRAM_MATRICES;

+   ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH;

+

+   /* CheckArrayBounds is overriden by drivers/x11 for X server */

+   ctx->Const.CheckArrayBounds = GL_FALSE;

+

+   /* GL_ARB_draw_buffers */

+   ctx->Const.MaxDrawBuffers = MAX_DRAW_BUFFERS;

+

+#if FEATURE_EXT_framebuffer_object

+   ctx->Const.MaxColorAttachments = MAX_COLOR_ATTACHMENTS;

+   ctx->Const.MaxRenderbufferSize = MAX_WIDTH;

+#endif

+

+#if FEATURE_ARB_vertex_shader

+   ctx->Const.MaxVertexTextureImageUnits = MAX_VERTEX_TEXTURE_IMAGE_UNITS;

+   ctx->Const.MaxCombinedTextureImageUnits = MAX_COMBINED_TEXTURE_IMAGE_UNITS;

+   ctx->Const.MaxVarying = MAX_VARYING;

+#endif

+

+   /* Shading language version */

+   if (ctx->API == API_OPENGL) {

+      ctx->Const.GLSLVersion = 120;

+   }

+   else if (ctx->API == API_OPENGLES2) {

+      ctx->Const.GLSLVersion = 100;

+   }

+   else if (ctx->API == API_OPENGLES) {

+      ctx->Const.GLSLVersion = 0; /* GLSL not supported */

+   }

+

+   /* GL_ARB_framebuffer_object */

+   ctx->Const.MaxSamples = 0;

+

+   /* GL_ARB_sync */

+   ctx->Const.MaxServerWaitTimeout = (GLuint64) ~0;

+

+   /* GL_ATI_envmap_bumpmap */

+   ctx->Const.SupportedBumpUnits = SUPPORTED_ATI_BUMP_UNITS;

+

+   /* GL_EXT_provoking_vertex */

+   ctx->Const.QuadsFollowProvokingVertexConvention = GL_TRUE;

+

+   /* GL_EXT_transform_feedback */

+   ctx->Const.MaxTransformFeedbackSeparateAttribs = MAX_FEEDBACK_ATTRIBS;

+   ctx->Const.MaxTransformFeedbackSeparateComponents = 4 * MAX_FEEDBACK_ATTRIBS;

+   ctx->Const.MaxTransformFeedbackInterleavedComponents = 4 * MAX_FEEDBACK_ATTRIBS;

+

+   /* GL 3.2: hard-coded for now: */

+   ctx->Const.ProfileMask = GL_CONTEXT_COMPATIBILITY_PROFILE_BIT;

+

+   /** GL_EXT_gpu_shader4 */

+   ctx->Const.MinProgramTexelOffset = -8;

+   ctx->Const.MaxProgramTexelOffset = 7;

+}

+

+

+/**

+ * Do some sanity checks on the limits/constants for the given context.

+ * Only called the first time a context is bound.

+ */

+static void

+check_context_limits(struct gl_context *ctx)

+{

+   /* check that we don't exceed the size of various bitfields */

+   assert(VERT_RESULT_MAX <=

+	  (8 * sizeof(ctx->VertexProgram._Current->Base.OutputsWritten)));

+   assert(FRAG_ATTRIB_MAX <=

+	  (8 * sizeof(ctx->FragmentProgram._Current->Base.InputsRead)));

+

+   assert(MAX_COMBINED_TEXTURE_IMAGE_UNITS <= 8 * sizeof(GLbitfield));

+

+   /* shader-related checks */

+   assert(ctx->Const.FragmentProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS);

+   assert(ctx->Const.VertexProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS);

+

+   assert(MAX_NV_FRAGMENT_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS);

+   assert(MAX_NV_VERTEX_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS);

+   assert(MAX_NV_VERTEX_PROGRAM_INPUTS <= VERT_ATTRIB_MAX);

+   assert(MAX_NV_VERTEX_PROGRAM_OUTPUTS <= VERT_RESULT_MAX);

+

+   /* Texture unit checks */

+   assert(ctx->Const.MaxTextureImageUnits > 0);

+   assert(ctx->Const.MaxTextureImageUnits <= MAX_TEXTURE_IMAGE_UNITS);

+   assert(ctx->Const.MaxTextureCoordUnits > 0);

+   assert(ctx->Const.MaxTextureCoordUnits <= MAX_TEXTURE_COORD_UNITS);

+   assert(ctx->Const.MaxTextureUnits > 0);

+   assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS);

+   assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS);

+   assert(ctx->Const.MaxTextureUnits == MIN2(ctx->Const.MaxTextureImageUnits,

+                                             ctx->Const.MaxTextureCoordUnits));

+   assert(ctx->Const.MaxCombinedTextureImageUnits > 0);

+   assert(ctx->Const.MaxCombinedTextureImageUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS);

+   assert(ctx->Const.MaxTextureCoordUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS);

+   /* number of coord units cannot be greater than number of image units */

+   assert(ctx->Const.MaxTextureCoordUnits <= ctx->Const.MaxTextureImageUnits);

+

+

+   /* Texture size checks */

+   assert(ctx->Const.MaxTextureLevels <= MAX_TEXTURE_LEVELS);

+   assert(ctx->Const.Max3DTextureLevels <= MAX_3D_TEXTURE_LEVELS);

+   assert(ctx->Const.MaxCubeTextureLevels <= MAX_CUBE_TEXTURE_LEVELS);

+   assert(ctx->Const.MaxTextureRectSize <= MAX_TEXTURE_RECT_SIZE);

+

+   /* make sure largest texture image is <= MAX_WIDTH in size */

+   assert((1 << (ctx->Const.MaxTextureLevels - 1)) <= MAX_WIDTH);

+   assert((1 << (ctx->Const.MaxCubeTextureLevels - 1)) <= MAX_WIDTH);

+   assert((1 << (ctx->Const.Max3DTextureLevels - 1)) <= MAX_WIDTH);

+

+   /* Texture level checks */

+   assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS);

+   assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS);

+

+   /* Max texture size should be <= max viewport size (render to texture) */

+   assert((1 << (MAX_TEXTURE_LEVELS - 1)) <= MAX_WIDTH);

+

+   assert(ctx->Const.MaxViewportWidth <= MAX_WIDTH);

+   assert(ctx->Const.MaxViewportHeight <= MAX_WIDTH);

+

+   assert(ctx->Const.MaxDrawBuffers <= MAX_DRAW_BUFFERS);

+

+   /* if this fails, add more enum values to gl_buffer_index */

+   assert(BUFFER_COLOR0 + MAX_DRAW_BUFFERS <= BUFFER_COUNT);

+

+   /* XXX probably add more tests */

+}

+

+

+/**

+ * Initialize the attribute groups in a GL context.

+ *

+ * \param ctx GL context.

+ *

+ * Initializes all the attributes, calling the respective <tt>init*</tt>

+ * functions for the more complex data structures.

+ */

+static GLboolean

+init_attrib_groups(struct gl_context *ctx)

+{

+   assert(ctx);

+

+   /* Constants */

+   _mesa_init_constants( ctx );

+

+   /* Extensions */

+   _mesa_init_extensions( ctx );

+

+   /* Attribute Groups */

+   _mesa_init_accum( ctx );

+   _mesa_init_attrib( ctx );

+   _mesa_init_buffer_objects( ctx );

+   _mesa_init_color( ctx );

+   _mesa_init_current( ctx );

+   _mesa_init_depth( ctx );

+   _mesa_init_debug( ctx );

+   _mesa_init_display_list( ctx );

+   _mesa_init_eval( ctx );

+   _mesa_init_fbobjects( ctx );

+   _mesa_init_feedback( ctx );

+   _mesa_init_fog( ctx );

+   _mesa_init_hint( ctx );

+   _mesa_init_line( ctx );

+   _mesa_init_lighting( ctx );

+   _mesa_init_matrix( ctx );

+   _mesa_init_multisample( ctx );

+   _mesa_init_pixel( ctx );

+   _mesa_init_pixelstore( ctx );

+   _mesa_init_point( ctx );

+   _mesa_init_polygon( ctx );

+   _mesa_init_program( ctx );

+   _mesa_init_queryobj( ctx );

+   _mesa_init_sync( ctx );

+   _mesa_init_rastpos( ctx );

+   _mesa_init_scissor( ctx );

+   _mesa_init_shader_state( ctx );

+   _mesa_init_stencil( ctx );

+   _mesa_init_transform( ctx );

+   _mesa_init_transform_feedback( ctx );

+   _mesa_init_varray( ctx );

+   _mesa_init_viewport( ctx );

+

+   if (!_mesa_init_texture( ctx ))

+      return GL_FALSE;

+

+   _mesa_init_texture_s3tc( ctx );

+

+   /* Miscellaneous */

+   ctx->NewState = _NEW_ALL;

+   ctx->ErrorValue = (GLenum) GL_NO_ERROR;

+   ctx->varying_vp_inputs = ~0;

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Update default objects in a GL context with respect to shared state.

+ *

+ * \param ctx GL context.

+ *

+ * Removes references to old default objects, (texture objects, program

+ * objects, etc.) and changes to reference those from the current shared

+ * state.

+ */

+static GLboolean

+update_default_objects(struct gl_context *ctx)

+{

+   assert(ctx);

+

+   _mesa_update_default_objects_program(ctx);

+   _mesa_update_default_objects_texture(ctx);

+   _mesa_update_default_objects_buffer_objects(ctx);

+

+   return GL_TRUE;

+}

+

+

+/**

+ * This is the default function we plug into all dispatch table slots

+ * This helps prevents a segfault when someone calls a GL function without

+ * first checking if the extension's supported.

+ */

+static int

+generic_nop(void)

+{

+   _mesa_warning(NULL, "User called no-op dispatch function (an unsupported extension function?)");

+   return 0;

+}

+

+

+/**

+ * Allocate and initialize a new dispatch table.

+ */

+struct _glapi_table *

+_mesa_alloc_dispatch_table(int size)

+{

+   /* Find the larger of Mesa's dispatch table and libGL's dispatch table.

+    * In practice, this'll be the same for stand-alone Mesa.  But for DRI

+    * Mesa we do this to accomodate different versions of libGL and various

+    * DRI drivers.

+    */

+   GLint numEntries = MAX2(_glapi_get_dispatch_table_size(), _gloffset_COUNT);

+   struct _glapi_table *table;

+

+   /* should never happen, but just in case */

+   numEntries = MAX2(numEntries, size);

+

+   table = (struct _glapi_table *) malloc(numEntries * sizeof(_glapi_proc));

+   if (table) {

+      _glapi_proc *entry = (_glapi_proc *) table;

+      GLint i;

+      for (i = 0; i < numEntries; i++) {

+         entry[i] = (_glapi_proc) generic_nop;

+      }

+   }

+   return table;

+}

+

+

+/**

+ * Initialize a struct gl_context struct (rendering context).

+ *

+ * This includes allocating all the other structs and arrays which hang off of

+ * the context by pointers.

+ * Note that the driver needs to pass in its dd_function_table here since

+ * we need to at least call driverFunctions->NewTextureObject to create the

+ * default texture objects.

+ * 

+ * Called by _mesa_create_context().

+ *

+ * Performs the imports and exports callback tables initialization, and

+ * miscellaneous one-time initializations. If no shared context is supplied one

+ * is allocated, and increase its reference count.  Setups the GL API dispatch

+ * tables.  Initialize the TNL module. Sets the maximum Z buffer depth.

+ * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables

+ * for debug flags.

+ *

+ * \param ctx the context to initialize

+ * \param api the GL API type to create the context for

+ * \param visual describes the visual attributes for this context

+ * \param share_list points to context to share textures, display lists,

+ *        etc with, or NULL

+ * \param driverFunctions table of device driver functions for this context

+ *        to use

+ * \param driverContext pointer to driver-specific context data

+ */

+GLboolean

+_mesa_initialize_context(struct gl_context *ctx,

+                         gl_api api,

+                         const struct gl_config *visual,

+                         struct gl_context *share_list,

+                         const struct dd_function_table *driverFunctions,

+                         void *driverContext)

+{

+   struct gl_shared_state *shared;

+   int i;

+

+   /*ASSERT(driverContext);*/

+   assert(driverFunctions->NewTextureObject);

+   assert(driverFunctions->FreeTexImageData);

+

+   ctx->API = api;

+   ctx->Visual = *visual;

+   ctx->DrawBuffer = NULL;

+   ctx->ReadBuffer = NULL;

+   ctx->WinSysDrawBuffer = NULL;

+   ctx->WinSysReadBuffer = NULL;

+

+   /* misc one-time initializations */

+   one_time_init(ctx);

+

+   /* Plug in driver functions and context pointer here.

+    * This is important because when we call alloc_shared_state() below

+    * we'll call ctx->Driver.NewTextureObject() to create the default

+    * textures.

+    */

+   ctx->Driver = *driverFunctions;

+   ctx->DriverCtx = driverContext;

+

+   if (share_list) {

+      /* share state with another context */

+      shared = share_list->Shared;

+   }

+   else {

+      /* allocate new, unshared state */

+      shared = _mesa_alloc_shared_state(ctx);

+      if (!shared)

+         return GL_FALSE;

+   }

+

+   _glthread_LOCK_MUTEX(shared->Mutex);

+   ctx->Shared = shared;

+   shared->RefCount++;

+   _glthread_UNLOCK_MUTEX(shared->Mutex);

+

+   if (!init_attrib_groups( ctx )) {

+      _mesa_release_shared_state(ctx, ctx->Shared);

+      return GL_FALSE;

+   }

+

+#if FEATURE_dispatch

+   /* setup the API dispatch tables */

+   switch (ctx->API) {

+#if FEATURE_GL

+   case API_OPENGL:

+      ctx->Exec = _mesa_create_exec_table();

+      break;

+#endif

+#if FEATURE_ES1

+   case API_OPENGLES:

+      ctx->Exec = _mesa_create_exec_table_es1();

+      break;

+#endif

+#if FEATURE_ES2

+   case API_OPENGLES2:

+      ctx->Exec = _mesa_create_exec_table_es2();

+      break;

+#endif

+   default:

+      _mesa_problem(ctx, "unknown or unsupported API");

+      break;

+   }

+

+   if (!ctx->Exec) {

+      _mesa_release_shared_state(ctx, ctx->Shared);

+      return GL_FALSE;

+   }

+#endif

+   ctx->CurrentDispatch = ctx->Exec;

+

+   ctx->FragmentProgram._MaintainTexEnvProgram

+      = (_mesa_getenv("MESA_TEX_PROG") != NULL);

+

+   ctx->VertexProgram._MaintainTnlProgram

+      = (_mesa_getenv("MESA_TNL_PROG") != NULL);

+   if (ctx->VertexProgram._MaintainTnlProgram) {

+      /* this is required... */

+      ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;

+   }

+

+   /* Mesa core handles all the formats that mesa core knows about.

+    * Drivers will want to override this list with just the formats

+    * they can handle, and confirm that appropriate fallbacks exist in

+    * _mesa_choose_tex_format().

+    */

+   memset(&ctx->TextureFormatSupported, GL_TRUE,

+	  sizeof(ctx->TextureFormatSupported));

+

+   switch (ctx->API) {

+   case API_OPENGL:

+#if FEATURE_dlist

+      ctx->Save = _mesa_create_save_table();

+      if (!ctx->Save) {

+	 _mesa_release_shared_state(ctx, ctx->Shared);

+	 free(ctx->Exec);

+	 return GL_FALSE;

+      }

+

+      _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );

+#endif

+      break;

+   case API_OPENGLES:

+      /**

+       * GL_OES_texture_cube_map says

+       * "Initially all texture generation modes are set to REFLECTION_MAP_OES"

+       */

+      for (i = 0; i < MAX_TEXTURE_UNITS; i++) {

+	 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];

+	 texUnit->GenS.Mode = GL_REFLECTION_MAP_NV;

+	 texUnit->GenT.Mode = GL_REFLECTION_MAP_NV;

+	 texUnit->GenR.Mode = GL_REFLECTION_MAP_NV;

+	 texUnit->GenS._ModeBit = TEXGEN_REFLECTION_MAP_NV;

+	 texUnit->GenT._ModeBit = TEXGEN_REFLECTION_MAP_NV;

+	 texUnit->GenR._ModeBit = TEXGEN_REFLECTION_MAP_NV;

+      }

+      break;

+   case API_OPENGLES2:

+      ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;

+      ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;

+      ctx->Point.PointSprite = GL_TRUE;  /* always on for ES 2.x */

+      break;

+   }

+

+   ctx->FirstTimeCurrent = GL_TRUE;

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Allocate and initialize a struct gl_context structure.

+ * Note that the driver needs to pass in its dd_function_table here since

+ * we need to at least call driverFunctions->NewTextureObject to initialize

+ * the rendering context.

+ *

+ * \param api the GL API type to create the context for

+ * \param visual a struct gl_config pointer (we copy the struct contents)

+ * \param share_list another context to share display lists with or NULL

+ * \param driverFunctions points to the dd_function_table into which the

+ *        driver has plugged in all its special functions.

+ * \param driverContext points to the device driver's private context state

+ * 

+ * \return pointer to a new __struct gl_contextRec or NULL if error.

+ */

+struct gl_context *

+_mesa_create_context(gl_api api,

+                     const struct gl_config *visual,

+                     struct gl_context *share_list,

+                     const struct dd_function_table *driverFunctions,

+                     void *driverContext)

+{

+   struct gl_context *ctx;

+

+   ASSERT(visual);

+   /*ASSERT(driverContext);*/

+

+   ctx = (struct gl_context *) calloc(1, sizeof(struct gl_context));

+   if (!ctx)

+      return NULL;

+

+   if (_mesa_initialize_context(ctx, api, visual, share_list,

+                                driverFunctions, driverContext)) {

+      return ctx;

+   }

+   else {

+      free(ctx);

+      return NULL;

+   }

+}

+

+

+/**

+ * Free the data associated with the given context.

+ * 

+ * But doesn't free the struct gl_context struct itself.

+ *

+ * \sa _mesa_initialize_context() and init_attrib_groups().

+ */

+void

+_mesa_free_context_data( struct gl_context *ctx )

+{

+   if (!_mesa_get_current_context()){

+      /* No current context, but we may need one in order to delete

+       * texture objs, etc.  So temporarily bind the context now.

+       */

+      _mesa_make_current(ctx, NULL, NULL);

+   }

+

+   /* unreference WinSysDraw/Read buffers */

+   _mesa_reference_framebuffer(&ctx->WinSysDrawBuffer, NULL);

+   _mesa_reference_framebuffer(&ctx->WinSysReadBuffer, NULL);

+   _mesa_reference_framebuffer(&ctx->DrawBuffer, NULL);

+   _mesa_reference_framebuffer(&ctx->ReadBuffer, NULL);

+

+   _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL);

+   _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);

+   _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL);

+

+   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);

+   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);

+   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL);

+

+   _mesa_free_attrib_data(ctx);

+   _mesa_free_buffer_objects(ctx);

+   _mesa_free_lighting_data( ctx );

+   _mesa_free_eval_data( ctx );

+   _mesa_free_texture_data( ctx );

+   _mesa_free_matrix_data( ctx );

+   _mesa_free_viewport_data( ctx );

+   _mesa_free_program_data(ctx);

+   _mesa_free_shader_state(ctx);

+   _mesa_free_queryobj_data(ctx);

+   _mesa_free_sync_data(ctx);

+   _mesa_free_varray_data(ctx);

+   _mesa_free_transform_feedback(ctx);

+

+   _mesa_delete_array_object(ctx, ctx->Array.DefaultArrayObj);

+

+#if FEATURE_ARB_pixel_buffer_object

+   _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL);

+   _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL);

+   _mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj, NULL);

+#endif

+

+#if FEATURE_ARB_vertex_buffer_object

+   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL);

+   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL);

+#endif

+

+   /* free dispatch tables */

+   free(ctx->Exec);

+   free(ctx->Save);

+

+   /* Shared context state (display lists, textures, etc) */

+   _mesa_release_shared_state( ctx, ctx->Shared );

+

+   /* needs to be after freeing shared state */

+   _mesa_free_display_list_data(ctx);

+

+   if (ctx->Extensions.String)

+      free((void *) ctx->Extensions.String);

+

+   if (ctx->VersionString)

+      free(ctx->VersionString);

+

+   /* unbind the context if it's currently bound */

+   if (ctx == _mesa_get_current_context()) {

+      _mesa_make_current(NULL, NULL, NULL);

+   }

+}

+

+

+/**

+ * Destroy a struct gl_context structure.

+ *

+ * \param ctx GL context.

+ * 

+ * Calls _mesa_free_context_data() and frees the gl_context object itself.

+ */

+void

+_mesa_destroy_context( struct gl_context *ctx )

+{

+   if (ctx) {

+      _mesa_free_context_data(ctx);

+      free( (void *) ctx );

+   }

+}

+

+

+#if _HAVE_FULL_GL

+/**

+ * Copy attribute groups from one context to another.

+ * 

+ * \param src source context

+ * \param dst destination context

+ * \param mask bitwise OR of GL_*_BIT flags

+ *

+ * According to the bits specified in \p mask, copies the corresponding

+ * attributes from \p src into \p dst.  For many of the attributes a simple \c

+ * memcpy is not enough due to the existence of internal pointers in their data

+ * structures.

+ */

+void

+_mesa_copy_context( const struct gl_context *src, struct gl_context *dst, GLuint mask )

+{

+   if (mask & GL_ACCUM_BUFFER_BIT) {

+      /* OK to memcpy */

+      dst->Accum = src->Accum;

+   }

+   if (mask & GL_COLOR_BUFFER_BIT) {

+      /* OK to memcpy */

+      dst->Color = src->Color;

+   }

+   if (mask & GL_CURRENT_BIT) {

+      /* OK to memcpy */

+      dst->Current = src->Current;

+   }

+   if (mask & GL_DEPTH_BUFFER_BIT) {

+      /* OK to memcpy */

+      dst->Depth = src->Depth;

+   }

+   if (mask & GL_ENABLE_BIT) {

+      /* no op */

+   }

+   if (mask & GL_EVAL_BIT) {

+      /* OK to memcpy */

+      dst->Eval = src->Eval;

+   }

+   if (mask & GL_FOG_BIT) {

+      /* OK to memcpy */

+      dst->Fog = src->Fog;

+   }

+   if (mask & GL_HINT_BIT) {

+      /* OK to memcpy */

+      dst->Hint = src->Hint;

+   }

+   if (mask & GL_LIGHTING_BIT) {

+      GLuint i;

+      /* begin with memcpy */

+      dst->Light = src->Light;

+      /* fixup linked lists to prevent pointer insanity */

+      make_empty_list( &(dst->Light.EnabledList) );

+      for (i = 0; i < MAX_LIGHTS; i++) {

+         if (dst->Light.Light[i].Enabled) {

+            insert_at_tail(&(dst->Light.EnabledList), &(dst->Light.Light[i]));

+         }

+      }

+   }

+   if (mask & GL_LINE_BIT) {

+      /* OK to memcpy */

+      dst->Line = src->Line;

+   }

+   if (mask & GL_LIST_BIT) {

+      /* OK to memcpy */

+      dst->List = src->List;

+   }

+   if (mask & GL_PIXEL_MODE_BIT) {

+      /* OK to memcpy */

+      dst->Pixel = src->Pixel;

+   }

+   if (mask & GL_POINT_BIT) {

+      /* OK to memcpy */

+      dst->Point = src->Point;

+   }

+   if (mask & GL_POLYGON_BIT) {

+      /* OK to memcpy */

+      dst->Polygon = src->Polygon;

+   }

+   if (mask & GL_POLYGON_STIPPLE_BIT) {

+      /* Use loop instead of memcpy due to problem with Portland Group's

+       * C compiler.  Reported by John Stone.

+       */

+      GLuint i;

+      for (i = 0; i < 32; i++) {

+         dst->PolygonStipple[i] = src->PolygonStipple[i];

+      }

+   }

+   if (mask & GL_SCISSOR_BIT) {

+      /* OK to memcpy */

+      dst->Scissor = src->Scissor;

+   }

+   if (mask & GL_STENCIL_BUFFER_BIT) {

+      /* OK to memcpy */

+      dst->Stencil = src->Stencil;

+   }

+   if (mask & GL_TEXTURE_BIT) {

+      /* Cannot memcpy because of pointers */

+      _mesa_copy_texture_state(src, dst);

+   }

+   if (mask & GL_TRANSFORM_BIT) {

+      /* OK to memcpy */

+      dst->Transform = src->Transform;

+   }

+   if (mask & GL_VIEWPORT_BIT) {

+      /* Cannot use memcpy, because of pointers in GLmatrix _WindowMap */

+      dst->Viewport.X = src->Viewport.X;

+      dst->Viewport.Y = src->Viewport.Y;

+      dst->Viewport.Width = src->Viewport.Width;

+      dst->Viewport.Height = src->Viewport.Height;

+      dst->Viewport.Near = src->Viewport.Near;

+      dst->Viewport.Far = src->Viewport.Far;

+      _math_matrix_copy(&dst->Viewport._WindowMap, &src->Viewport._WindowMap);

+   }

+

+   /* XXX FIXME:  Call callbacks?

+    */

+   dst->NewState = _NEW_ALL;

+}

+#endif

+

+

+/**

+ * Check if the given context can render into the given framebuffer

+ * by checking visual attributes.

+ *

+ * Most of these tests could go away because Mesa is now pretty flexible

+ * in terms of mixing rendering contexts with framebuffers.  As long

+ * as RGB vs. CI mode agree, we're probably good.

+ *

+ * \return GL_TRUE if compatible, GL_FALSE otherwise.

+ */

+static GLboolean 

+check_compatible(const struct gl_context *ctx,

+                 const struct gl_framebuffer *buffer)

+{

+   const struct gl_config *ctxvis = &ctx->Visual;

+   const struct gl_config *bufvis = &buffer->Visual;

+

+   if (buffer == _mesa_get_incomplete_framebuffer())

+      return GL_TRUE;

+

+#if 0

+   /* disabling this fixes the fgl_glxgears pbuffer demo */

+   if (ctxvis->doubleBufferMode && !bufvis->doubleBufferMode)

+      return GL_FALSE;

+#endif

+   if (ctxvis->stereoMode && !bufvis->stereoMode)

+      return GL_FALSE;

+   if (ctxvis->haveAccumBuffer && !bufvis->haveAccumBuffer)

+      return GL_FALSE;

+   if (ctxvis->haveDepthBuffer && !bufvis->haveDepthBuffer)

+      return GL_FALSE;

+   if (ctxvis->haveStencilBuffer && !bufvis->haveStencilBuffer)

+      return GL_FALSE;

+   if (ctxvis->redMask && ctxvis->redMask != bufvis->redMask)

+      return GL_FALSE;

+   if (ctxvis->greenMask && ctxvis->greenMask != bufvis->greenMask)

+      return GL_FALSE;

+   if (ctxvis->blueMask && ctxvis->blueMask != bufvis->blueMask)

+      return GL_FALSE;

+#if 0

+   /* disabled (see bug 11161) */

+   if (ctxvis->depthBits && ctxvis->depthBits != bufvis->depthBits)

+      return GL_FALSE;

+#endif

+   if (ctxvis->stencilBits && ctxvis->stencilBits != bufvis->stencilBits)

+      return GL_FALSE;

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Do one-time initialization for the given framebuffer.  Specifically,

+ * ask the driver for the window's current size and update the framebuffer

+ * object to match.

+ * Really, the device driver should totally take care of this.

+ */

+static void

+initialize_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb)

+{

+   GLuint width, height;

+   if (ctx->Driver.GetBufferSize) {

+      ctx->Driver.GetBufferSize(fb, &width, &height);

+      if (ctx->Driver.ResizeBuffers)

+         ctx->Driver.ResizeBuffers(ctx, fb, width, height);

+      fb->Initialized = GL_TRUE;

+   }

+}

+

+

+/**

+ * Check if the viewport/scissor size has not yet been initialized.

+ * Initialize the size if the given width and height are non-zero.

+ */

+void

+_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height)

+{

+   if (!ctx->ViewportInitialized && width > 0 && height > 0) {

+      /* Note: set flag here, before calling _mesa_set_viewport(), to prevent

+       * potential infinite recursion.

+       */

+      ctx->ViewportInitialized = GL_TRUE;

+      _mesa_set_viewport(ctx, 0, 0, width, height);

+      _mesa_set_scissor(ctx, 0, 0, width, height);

+   }

+}

+

+

+/**

+ * Bind the given context to the given drawBuffer and readBuffer and

+ * make it the current context for the calling thread.

+ * We'll render into the drawBuffer and read pixels from the

+ * readBuffer (i.e. glRead/CopyPixels, glCopyTexImage, etc).

+ *

+ * We check that the context's and framebuffer's visuals are compatible

+ * and return immediately if they're not.

+ *

+ * \param newCtx  the new GL context. If NULL then there will be no current GL

+ *                context.

+ * \param drawBuffer  the drawing framebuffer

+ * \param readBuffer  the reading framebuffer

+ */

+GLboolean

+_mesa_make_current( struct gl_context *newCtx,

+                    struct gl_framebuffer *drawBuffer,

+                    struct gl_framebuffer *readBuffer )

+{

+   GET_CURRENT_CONTEXT(curCtx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(newCtx, "_mesa_make_current()\n");

+

+   /* Check that the context's and framebuffer's visuals are compatible.

+    */

+   if (newCtx && drawBuffer && newCtx->WinSysDrawBuffer != drawBuffer) {

+      if (!check_compatible(newCtx, drawBuffer)) {

+         _mesa_warning(newCtx,

+              "MakeCurrent: incompatible visuals for context and drawbuffer");

+         return GL_FALSE;

+      }

+   }

+   if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) {

+      if (!check_compatible(newCtx, readBuffer)) {

+         _mesa_warning(newCtx,

+              "MakeCurrent: incompatible visuals for context and readbuffer");

+         return GL_FALSE;

+      }

+   }

+

+   if (curCtx && 

+      (curCtx->WinSysDrawBuffer || curCtx->WinSysReadBuffer) && /* make sure this context is valid for flushing */

+      curCtx != newCtx)

+      _mesa_flush(curCtx);

+

+   /* We used to call _glapi_check_multithread() here.  Now do it in drivers */

+   _glapi_set_context((void *) newCtx);

+   ASSERT(_mesa_get_current_context() == newCtx);

+

+   if (!newCtx) {

+      _glapi_set_dispatch(NULL);  /* none current */

+   }

+   else {

+      _glapi_set_dispatch(newCtx->CurrentDispatch);

+

+      if (drawBuffer && readBuffer) {

+	 /* TODO: check if newCtx and buffer's visual match??? */

+

+         ASSERT(drawBuffer->Name == 0);

+         ASSERT(readBuffer->Name == 0);

+         _mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer);

+         _mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer);

+

+         /*

+          * Only set the context's Draw/ReadBuffer fields if they're NULL

+          * or not bound to a user-created FBO.

+          */

+         if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {

+            /* KW: merge conflict here, revisit. 

+             */

+            /* fix up the fb fields - these will end up wrong otherwise

+             * if the DRIdrawable changes, and everything relies on them.

+             * This is a bit messy (same as needed in _mesa_BindFramebufferEXT)

+             */

+            unsigned int i;

+            GLenum buffers[MAX_DRAW_BUFFERS];

+

+            _mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);

+

+            for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) {

+               buffers[i] = newCtx->Color.DrawBuffer[i];

+            }

+

+            _mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers,

+                              buffers, NULL);

+         }

+         if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {

+            _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);

+         }

+

+         /* XXX only set this flag if we're really changing the draw/read

+          * framebuffer bindings.

+          */

+	 newCtx->NewState |= _NEW_BUFFERS;

+

+#if 1

+         /* We want to get rid of these lines: */

+

+#if _HAVE_FULL_GL

+         if (!drawBuffer->Initialized) {

+            initialize_framebuffer_size(newCtx, drawBuffer);

+         }

+         if (readBuffer != drawBuffer && !readBuffer->Initialized) {

+            initialize_framebuffer_size(newCtx, readBuffer);

+         }

+

+	 _mesa_resizebuffers(newCtx);

+#endif

+

+#else

+         /* We want the drawBuffer and readBuffer to be initialized by

+          * the driver.

+          * This generally means the Width and Height match the actual

+          * window size and the renderbuffers (both hardware and software

+          * based) are allocated to match.  The later can generally be

+          * done with a call to _mesa_resize_framebuffer().

+          *

+          * It's theoretically possible for a buffer to have zero width

+          * or height, but for now, assert check that the driver did what's

+          * expected of it.

+          */

+         ASSERT(drawBuffer->Width > 0);

+         ASSERT(drawBuffer->Height > 0);

+#endif

+

+         if (drawBuffer) {

+            _mesa_check_init_viewport(newCtx,

+                                      drawBuffer->Width, drawBuffer->Height);

+         }

+      }

+

+      if (newCtx->FirstTimeCurrent) {

+         _mesa_compute_version(newCtx);

+

+         newCtx->Extensions.String = _mesa_make_extension_string(newCtx);

+

+         check_context_limits(newCtx);

+

+         /* We can use this to help debug user's problems.  Tell them to set

+          * the MESA_INFO env variable before running their app.  Then the

+          * first time each context is made current we'll print some useful

+          * information.

+          */

+	 if (_mesa_getenv("MESA_INFO")) {

+	    _mesa_print_info();

+	 }

+

+	 newCtx->FirstTimeCurrent = GL_FALSE;

+      }

+   }

+   

+   return GL_TRUE;

+}

+

+

+/**

+ * Make context 'ctx' share the display lists, textures and programs

+ * that are associated with 'ctxToShare'.

+ * Any display lists, textures or programs associated with 'ctx' will

+ * be deleted if nobody else is sharing them.

+ */

+GLboolean

+_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare)

+{

+   if (ctx && ctxToShare && ctx->Shared && ctxToShare->Shared) {

+      struct gl_shared_state *oldSharedState = ctx->Shared;

+

+      ctx->Shared = ctxToShare->Shared;

+      

+      _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

+      ctx->Shared->RefCount++;

+      _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);

+

+      update_default_objects(ctx);

+

+      _mesa_release_shared_state(ctx, oldSharedState);

+

+      return GL_TRUE;

+   }

+   else {

+      return GL_FALSE;

+   }

+}

+

+

+

+/**

+ * \return pointer to the current GL context for this thread.

+ * 

+ * Calls _glapi_get_context(). This isn't the fastest way to get the current

+ * context.  If you need speed, see the #GET_CURRENT_CONTEXT macro in

+ * context.h.

+ */

+struct gl_context *

+_mesa_get_current_context( void )

+{

+   return (struct gl_context *) _glapi_get_context();

+}

+

+

+/**

+ * Get context's current API dispatch table.

+ *

+ * It'll either be the immediate-mode execute dispatcher or the display list

+ * compile dispatcher.

+ * 

+ * \param ctx GL context.

+ *

+ * \return pointer to dispatch_table.

+ *

+ * Simply returns __struct gl_contextRec::CurrentDispatch.

+ */

+struct _glapi_table *

+_mesa_get_dispatch(struct gl_context *ctx)

+{

+   return ctx->CurrentDispatch;

+}

+

+/*@}*/

+

+

+/**********************************************************************/

+/** \name Miscellaneous functions                                     */

+/**********************************************************************/

+/*@{*/

+

+/**

+ * Record an error.

+ *

+ * \param ctx GL context.

+ * \param error error code.

+ * 

+ * Records the given error code and call the driver's dd_function_table::Error

+ * function if defined.

+ *

+ * \sa

+ * This is called via _mesa_error().

+ */

+void

+_mesa_record_error(struct gl_context *ctx, GLenum error)

+{

+   if (!ctx)

+      return;

+

+   if (ctx->ErrorValue == GL_NO_ERROR) {

+      ctx->ErrorValue = error;

+   }

+

+   /* Call device driver's error handler, if any.  This is used on the Mac. */

+   if (ctx->Driver.Error) {

+      ctx->Driver.Error(ctx);

+   }

+}

+

+

+/**

+ * Flush commands and wait for completion.

+ */

+void

+_mesa_finish(struct gl_context *ctx)

+{

+   FLUSH_CURRENT( ctx, 0 );

+   if (ctx->Driver.Finish) {

+      ctx->Driver.Finish(ctx);

+   }

+}

+

+

+/**

+ * Flush commands.

+ */

+void

+_mesa_flush(struct gl_context *ctx)

+{

+   FLUSH_CURRENT( ctx, 0 );

+   if (ctx->Driver.Flush) {

+      ctx->Driver.Flush(ctx);

+   }

+}

+

+

+

+/**

+ * Execute glFinish().

+ *

+ * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the

+ * dd_function_table::Finish driver callback, if not NULL.

+ */

+void GLAPIENTRY

+_mesa_Finish(void)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

+   _mesa_finish(ctx);

+}

+

+

+/**

+ * Execute glFlush().

+ *

+ * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the

+ * dd_function_table::Flush driver callback, if not NULL.

+ */

+void GLAPIENTRY

+_mesa_Flush(void)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

+   _mesa_flush(ctx);

+}

+

+

+/**

+ * Set mvp_with_dp4 flag.  If a driver has a preference for DP4 over

+ * MUL/MAD, or vice versa, call this function to register that.

+ * Otherwise we default to MUL/MAD.

+ */

+void

+_mesa_set_mvp_with_dp4( struct gl_context *ctx,

+                        GLboolean flag )

+{

+   ctx->mvp_with_dp4 = flag;

+}

+

+

+

+/**

+ * Prior to drawing anything with glBegin, glDrawArrays, etc. this function

+ * is called to see if it's valid to render.  This involves checking that

+ * the current shader is valid and the framebuffer is complete.

+ * If an error is detected it'll be recorded here.

+ * \return GL_TRUE if OK to render, GL_FALSE if not

+ */

+GLboolean

+_mesa_valid_to_render(struct gl_context *ctx, const char *where)

+{

+   bool vert_from_glsl_shader = false;

+   bool geom_from_glsl_shader = false;

+   bool frag_from_glsl_shader = false;

+

+   /* This depends on having up to date derived state (shaders) */

+   if (ctx->NewState)

+      _mesa_update_state(ctx);

+

+   if (ctx->Shader.CurrentVertexProgram) {

+      vert_from_glsl_shader = true;

+

+      if (!ctx->Shader.CurrentVertexProgram->LinkStatus) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "%s(shader not linked)", where);

+         return GL_FALSE;

+      }

+#if 0 /* not normally enabled */

+      {

+         char errMsg[100];

+         if (!_mesa_validate_shader_program(ctx,

+					    ctx->Shader.CurrentVertexProgram,

+                                            errMsg)) {

+            _mesa_warning(ctx, "Shader program %u is invalid: %s",

+                          ctx->Shader.CurrentVertexProgram->Name, errMsg);

+         }

+      }

+#endif

+   }

+

+   if (ctx->Shader.CurrentGeometryProgram) {

+      geom_from_glsl_shader = true;

+

+      if (!ctx->Shader.CurrentGeometryProgram->LinkStatus) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "%s(shader not linked)", where);

+         return GL_FALSE;

+      }

+#if 0 /* not normally enabled */

+      {

+         char errMsg[100];

+         if (!_mesa_validate_shader_program(ctx,

+					    ctx->Shader.CurrentGeometryProgram,

+                                            errMsg)) {

+            _mesa_warning(ctx, "Shader program %u is invalid: %s",

+                          ctx->Shader.CurrentGeometryProgram->Name, errMsg);

+         }

+      }

+#endif

+   }

+

+   if (ctx->Shader.CurrentFragmentProgram) {

+      frag_from_glsl_shader = true;

+

+      if (!ctx->Shader.CurrentFragmentProgram->LinkStatus) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "%s(shader not linked)", where);

+         return GL_FALSE;

+      }

+#if 0 /* not normally enabled */

+      {

+         char errMsg[100];

+         if (!_mesa_validate_shader_program(ctx,

+					    ctx->Shader.CurrentFragmentProgram,

+                                            errMsg)) {

+            _mesa_warning(ctx, "Shader program %u is invalid: %s",

+                          ctx->Shader.CurrentFragmentProgram->Name, errMsg);

+         }

+      }

+#endif

+   }

+

+   /* Any shader stages that are not supplied by the GLSL shader and have

+    * assembly shaders enabled must now be validated.

+    */

+   if (!vert_from_glsl_shader

+       && ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+		  "%s(vertex program not valid)", where);

+      return GL_FALSE;

+   }

+

+   /* FINISHME: If GL_NV_geometry_program4 is ever supported, the current

+    * FINISHME: geometry program should validated here.

+    */

+   (void) geom_from_glsl_shader;

+

+   if (!frag_from_glsl_shader) {

+      if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {

+	 _mesa_error(ctx, GL_INVALID_OPERATION,

+		     "%s(fragment program not valid)", where);

+	 return GL_FALSE;

+      }

+

+      /* If drawing to integer-valued color buffers, there must be an

+       * active fragment shader (GL_EXT_texture_integer).

+       */

+      if (ctx->DrawBuffer && ctx->DrawBuffer->_IntegerColor) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "%s(integer format but no fragment shader)", where);

+         return GL_FALSE;

+      }

+   }

+

+   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {

+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,

+                  "%s(incomplete framebuffer)", where);

+      return GL_FALSE;

+   }

+

+#ifdef DEBUG

+   if (ctx->Shader.Flags & GLSL_LOG) {

+      struct gl_shader_program *shProg[MESA_SHADER_TYPES];

+      gl_shader_type i;

+

+      shProg[MESA_SHADER_VERTEX] = ctx->Shader.CurrentVertexProgram;

+      shProg[MESA_SHADER_GEOMETRY] = ctx->Shader.CurrentGeometryProgram;

+      shProg[MESA_SHADER_FRAGMENT] = ctx->Shader.CurrentFragmentProgram;

+

+      for (i = 0; i < MESA_SHADER_TYPES; i++) {

+	 struct gl_shader *sh;

+

+	 if (shProg[i] == NULL || shProg[i]->_Used

+	     || shProg[i]->_LinkedShaders[i] == NULL)

+	    continue;

+

+	 /* This is the first time this shader is being used.

+	  * Append shader's constants/uniforms to log file.

+	  *

+	  * The logic is a little odd here.  We only want to log data for each

+	  * shader target that will actually be used, and we only want to log

+	  * it once.  It's possible to have a program bound to the vertex

+	  * shader target that also supplied a fragment shader.  If that

+	  * program isn't also bound to the fragment shader target we don't

+	  * want to log its fragment data.

+	  */

+	 sh = shProg[i]->_LinkedShaders[i];

+	 switch (sh->Type) {

+	 case GL_VERTEX_SHADER:

+	    _mesa_append_uniforms_to_file(sh, &shProg[i]->VertexProgram->Base);

+	    break;

+

+	 case GL_GEOMETRY_SHADER_ARB:

+	    _mesa_append_uniforms_to_file(sh,

+					  &shProg[i]->GeometryProgram->Base);

+	    break;

+

+	 case GL_FRAGMENT_SHADER:

+	    _mesa_append_uniforms_to_file(sh,

+					  &shProg[i]->FragmentProgram->Base);

+	    break;

+	 }

+      }

+

+      for (i = 0; i < MESA_SHADER_TYPES; i++) {

+	 if (shProg[i] != NULL)

+	    shProg[i]->_Used = GL_TRUE;

+      }

+   }

+#endif

+

+   return GL_TRUE;

+}

+

+

+/*@}*/

diff --git a/mesalib/src/mesa/main/context.h b/mesalib/src/mesa/main/context.h
index 4e391dde4..160e795f7 100644
--- a/mesalib/src/mesa/main/context.h
+++ b/mesalib/src/mesa/main/context.h
@@ -1,313 +1,313 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5.1
- *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file context.h
- * Mesa context and visual-related functions.
- *
- * There are three large Mesa data types/classes which are meant to be
- * used by device drivers:
- * - struct gl_context: this contains the Mesa rendering state
- * - struct gl_config:  this describes the color buffer (RGB vs. ci), whether or not
- *   there's a depth buffer, stencil buffer, etc.
- * - struct gl_framebuffer:  contains pointers to the depth buffer, stencil buffer,
- *   accum buffer and alpha buffers.
- *
- * These types should be encapsulated by corresponding device driver
- * data types.  See xmesa.h and xmesaP.h for an example.
- *
- * In OOP terms, struct gl_context, struct gl_config, and struct gl_framebuffer are base classes
- * which the device driver must derive from.
- *
- * The following functions create and destroy these data types.
- */
-
-
-#ifndef CONTEXT_H
-#define CONTEXT_H
-
-
-#include "imports.h"
-#include "mtypes.h"
-
-
-struct _glapi_table;
-
-
-/** \name Visual-related functions */
-/*@{*/
- 
-extern struct gl_config *
-_mesa_create_visual( GLboolean dbFlag,
-                     GLboolean stereoFlag,
-                     GLint redBits,
-                     GLint greenBits,
-                     GLint blueBits,
-                     GLint alphaBits,
-                     GLint depthBits,
-                     GLint stencilBits,
-                     GLint accumRedBits,
-                     GLint accumGreenBits,
-                     GLint accumBlueBits,
-                     GLint accumAlphaBits,
-                     GLint numSamples );
-
-extern GLboolean
-_mesa_initialize_visual( struct gl_config *v,
-                         GLboolean dbFlag,
-                         GLboolean stereoFlag,
-                         GLint redBits,
-                         GLint greenBits,
-                         GLint blueBits,
-                         GLint alphaBits,
-                         GLint depthBits,
-                         GLint stencilBits,
-                         GLint accumRedBits,
-                         GLint accumGreenBits,
-                         GLint accumBlueBits,
-                         GLint accumAlphaBits,
-                         GLint numSamples );
-
-extern void
-_mesa_destroy_visual( struct gl_config *vis );
-
-/*@}*/
-
-
-/** \name Context-related functions */
-/*@{*/
-
-extern GLboolean
-_mesa_initialize_context( struct gl_context *ctx,
-                          gl_api api,
-                          const struct gl_config *visual,
-                          struct gl_context *share_list,
-                          const struct dd_function_table *driverFunctions,
-                          void *driverContext );
-
-extern struct gl_context *
-_mesa_create_context(gl_api api,
-                     const struct gl_config *visual,
-                     struct gl_context *share_list,
-                     const struct dd_function_table *driverFunctions,
-                     void *driverContext);
-
-extern void
-_mesa_free_context_data( struct gl_context *ctx );
-
-extern void
-_mesa_destroy_context( struct gl_context *ctx );
-
-
-extern void
-_mesa_copy_context(const struct gl_context *src, struct gl_context *dst, GLuint mask);
-
-
-extern void
-_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height);
-
-extern GLboolean
-_mesa_make_current( struct gl_context *ctx, struct gl_framebuffer *drawBuffer,
-                    struct gl_framebuffer *readBuffer );
-
-extern GLboolean
-_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare);
-
-extern struct gl_context *
-_mesa_get_current_context(void);
-
-/*@}*/
-
-extern void
-_mesa_init_get_hash(struct gl_context *ctx);
-
-extern void
-_mesa_notifySwapBuffers(struct gl_context *gc);
-
-
-extern struct _glapi_table *
-_mesa_get_dispatch(struct gl_context *ctx);
-
-
-void
-_mesa_set_mvp_with_dp4( struct gl_context *ctx,
-                        GLboolean flag );
-
-
-extern GLboolean
-_mesa_valid_to_render(struct gl_context *ctx, const char *where);
-
-
-
-/** \name Miscellaneous */
-/*@{*/
-
-extern void
-_mesa_record_error( struct gl_context *ctx, GLenum error );
-
-
-extern void
-_mesa_finish(struct gl_context *ctx);
-
-extern void
-_mesa_flush(struct gl_context *ctx);
-
-
-extern void GLAPIENTRY
-_mesa_Finish( void );
-
-extern void GLAPIENTRY
-_mesa_Flush( void );
-
-/*@}*/
-
-
-/**
- * \name Macros for flushing buffered rendering commands before state changes,
- * checking if inside glBegin/glEnd, etc.
- */
-/*@{*/
-
-/**
- * Flush vertices.
- *
- * \param ctx GL context.
- * \param newstate new state.
- *
- * Checks if dd_function_table::NeedFlush is marked to flush stored vertices,
- * and calls dd_function_table::FlushVertices if so. Marks
- * __struct gl_contextRec::NewState with \p newstate.
- */
-#define FLUSH_VERTICES(ctx, newstate)				\
-do {								\
-   if (MESA_VERBOSE & VERBOSE_STATE)				\
-      _mesa_debug(ctx, "FLUSH_VERTICES in %s\n", MESA_FUNCTION);\
-   if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES)		\
-      ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES);	\
-   ctx->NewState |= newstate;					\
-} while (0)
-
-/**
- * Flush current state.
- *
- * \param ctx GL context.
- * \param newstate new state.
- *
- * Checks if dd_function_table::NeedFlush is marked to flush current state,
- * and calls dd_function_table::FlushVertices if so. Marks
- * __struct gl_contextRec::NewState with \p newstate.
- */
-#define FLUSH_CURRENT(ctx, newstate)				\
-do {								\
-   if (MESA_VERBOSE & VERBOSE_STATE)				\
-      _mesa_debug(ctx, "FLUSH_CURRENT in %s\n", MESA_FUNCTION);	\
-   if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT)		\
-      ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT);	\
-   ctx->NewState |= newstate;					\
-} while (0)
-
-/**
- * Macro to assert that the API call was made outside the
- * glBegin()/glEnd() pair, with return value.
- * 
- * \param ctx GL context.
- * \param retval value to return value in case the assertion fails.
- */
-#define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval)		\
-do {									\
-   if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {	\
-      _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd");	\
-      return retval;							\
-   }									\
-} while (0)
-
-/**
- * Macro to assert that the API call was made outside the
- * glBegin()/glEnd() pair.
- * 
- * \param ctx GL context.
- */
-#define ASSERT_OUTSIDE_BEGIN_END(ctx)					\
-do {									\
-   if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {	\
-      _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd");	\
-      return;								\
-   }									\
-} while (0)
-
-/**
- * Macro to assert that the API call was made outside the
- * glBegin()/glEnd() pair and flush the vertices.
- * 
- * \param ctx GL context.
- */
-#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx)				\
-do {									\
-   ASSERT_OUTSIDE_BEGIN_END(ctx);					\
-   FLUSH_VERTICES(ctx, 0);						\
-} while (0)
-
-/**
- * Macro to assert that the API call was made outside the
- * glBegin()/glEnd() pair and flush the vertices, with return value.
- * 
- * \param ctx GL context.
- * \param retval value to return value in case the assertion fails.
- */
-#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval)	\
-do {									\
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval);			\
-   FLUSH_VERTICES(ctx, 0);						\
-} while (0)
-
-/*@}*/
-
-
-
-/**
- * Is the secondary color needed?
- */
-#define NEED_SECONDARY_COLOR(CTX)					\
-   (((CTX)->Light.Enabled &&						\
-     (CTX)->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)	\
-    || (CTX)->Fog.ColorSumEnabled					\
-    || ((CTX)->VertexProgram._Current &&				\
-        ((CTX)->VertexProgram._Current != (CTX)->VertexProgram._TnlProgram) &&    \
-        ((CTX)->VertexProgram._Current->Base.InputsRead & VERT_BIT_COLOR1)) \
-    || ((CTX)->FragmentProgram._Current &&				\
-        ((CTX)->FragmentProgram._Current != (CTX)->FragmentProgram._TexEnvProgram) &&  \
-        ((CTX)->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL1)) \
-   )
-
-
-/**
- * Is RGBA LogicOp enabled?
- */
-#define RGBA_LOGICOP_ENABLED(CTX) \
-  ((CTX)->Color.ColorLogicOpEnabled || \
-   ((CTX)->Color.BlendEnabled && (CTX)->Color.Blend[0].EquationRGB == GL_LOGIC_OP))
-
-
-#endif /* CONTEXT_H */
+/*

+ * Mesa 3-D graphics library

+ * Version:  6.5.1

+ *

+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+/**

+ * \file context.h

+ * Mesa context and visual-related functions.

+ *

+ * There are three large Mesa data types/classes which are meant to be

+ * used by device drivers:

+ * - struct gl_context: this contains the Mesa rendering state

+ * - struct gl_config:  this describes the color buffer (RGB vs. ci), whether or not

+ *   there's a depth buffer, stencil buffer, etc.

+ * - struct gl_framebuffer:  contains pointers to the depth buffer, stencil buffer,

+ *   accum buffer and alpha buffers.

+ *

+ * These types should be encapsulated by corresponding device driver

+ * data types.  See xmesa.h and xmesaP.h for an example.

+ *

+ * In OOP terms, struct gl_context, struct gl_config, and struct gl_framebuffer are base classes

+ * which the device driver must derive from.

+ *

+ * The following functions create and destroy these data types.

+ */

+

+

+#ifndef CONTEXT_H

+#define CONTEXT_H

+

+

+#include "imports.h"

+#include "mtypes.h"

+

+

+struct _glapi_table;

+

+

+/** \name Visual-related functions */

+/*@{*/

+ 

+extern struct gl_config *

+_mesa_create_visual( GLboolean dbFlag,

+                     GLboolean stereoFlag,

+                     GLint redBits,

+                     GLint greenBits,

+                     GLint blueBits,

+                     GLint alphaBits,

+                     GLint depthBits,

+                     GLint stencilBits,

+                     GLint accumRedBits,

+                     GLint accumGreenBits,

+                     GLint accumBlueBits,

+                     GLint accumAlphaBits,

+                     GLint numSamples );

+

+extern GLboolean

+_mesa_initialize_visual( struct gl_config *v,

+                         GLboolean dbFlag,

+                         GLboolean stereoFlag,

+                         GLint redBits,

+                         GLint greenBits,

+                         GLint blueBits,

+                         GLint alphaBits,

+                         GLint depthBits,

+                         GLint stencilBits,

+                         GLint accumRedBits,

+                         GLint accumGreenBits,

+                         GLint accumBlueBits,

+                         GLint accumAlphaBits,

+                         GLint numSamples );

+

+extern void

+_mesa_destroy_visual( struct gl_config *vis );

+

+/*@}*/

+

+

+/** \name Context-related functions */

+/*@{*/

+

+extern GLboolean

+_mesa_initialize_context( struct gl_context *ctx,

+                          gl_api api,

+                          const struct gl_config *visual,

+                          struct gl_context *share_list,

+                          const struct dd_function_table *driverFunctions,

+                          void *driverContext );

+

+extern struct gl_context *

+_mesa_create_context(gl_api api,

+                     const struct gl_config *visual,

+                     struct gl_context *share_list,

+                     const struct dd_function_table *driverFunctions,

+                     void *driverContext);

+

+extern void

+_mesa_free_context_data( struct gl_context *ctx );

+

+extern void

+_mesa_destroy_context( struct gl_context *ctx );

+

+

+extern void

+_mesa_copy_context(const struct gl_context *src, struct gl_context *dst, GLuint mask);

+

+

+extern void

+_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height);

+

+extern GLboolean

+_mesa_make_current( struct gl_context *ctx, struct gl_framebuffer *drawBuffer,

+                    struct gl_framebuffer *readBuffer );

+

+extern GLboolean

+_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare);

+

+extern struct gl_context *

+_mesa_get_current_context(void);

+

+/*@}*/

+

+extern void

+_mesa_init_get_hash(struct gl_context *ctx);

+

+extern void

+_mesa_notifySwapBuffers(struct gl_context *gc);

+

+

+extern struct _glapi_table *

+_mesa_get_dispatch(struct gl_context *ctx);

+

+

+void

+_mesa_set_mvp_with_dp4( struct gl_context *ctx,

+                        GLboolean flag );

+

+

+extern GLboolean

+_mesa_valid_to_render(struct gl_context *ctx, const char *where);

+

+

+

+/** \name Miscellaneous */

+/*@{*/

+

+extern void

+_mesa_record_error( struct gl_context *ctx, GLenum error );

+

+

+extern void

+_mesa_finish(struct gl_context *ctx);

+

+extern void

+_mesa_flush(struct gl_context *ctx);

+

+

+extern void GLAPIENTRY

+_mesa_Finish( void );

+

+extern void GLAPIENTRY

+_mesa_Flush( void );

+

+/*@}*/

+

+

+/**

+ * \name Macros for flushing buffered rendering commands before state changes,

+ * checking if inside glBegin/glEnd, etc.

+ */

+/*@{*/

+

+/**

+ * Flush vertices.

+ *

+ * \param ctx GL context.

+ * \param newstate new state.

+ *

+ * Checks if dd_function_table::NeedFlush is marked to flush stored vertices,

+ * and calls dd_function_table::FlushVertices if so. Marks

+ * __struct gl_contextRec::NewState with \p newstate.

+ */

+#define FLUSH_VERTICES(ctx, newstate)				\

+do {								\

+   if (MESA_VERBOSE & VERBOSE_STATE)				\

+      _mesa_debug(ctx, "FLUSH_VERTICES in %s\n", MESA_FUNCTION);\

+   if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES)		\

+      ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES);	\

+   ctx->NewState |= newstate;					\

+} while (0)

+

+/**

+ * Flush current state.

+ *

+ * \param ctx GL context.

+ * \param newstate new state.

+ *

+ * Checks if dd_function_table::NeedFlush is marked to flush current state,

+ * and calls dd_function_table::FlushVertices if so. Marks

+ * __struct gl_contextRec::NewState with \p newstate.

+ */

+#define FLUSH_CURRENT(ctx, newstate)				\

+do {								\

+   if (MESA_VERBOSE & VERBOSE_STATE)				\

+      _mesa_debug(ctx, "FLUSH_CURRENT in %s\n", MESA_FUNCTION);	\

+   if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT)		\

+      ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT);	\

+   ctx->NewState |= newstate;					\

+} while (0)

+

+/**

+ * Macro to assert that the API call was made outside the

+ * glBegin()/glEnd() pair, with return value.

+ * 

+ * \param ctx GL context.

+ * \param retval value to return value in case the assertion fails.

+ */

+#define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval)		\

+do {									\

+   if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {	\

+      _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd");	\

+      return retval;							\

+   }									\

+} while (0)

+

+/**

+ * Macro to assert that the API call was made outside the

+ * glBegin()/glEnd() pair.

+ * 

+ * \param ctx GL context.

+ */

+#define ASSERT_OUTSIDE_BEGIN_END(ctx)					\

+do {									\

+   if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {	\

+      _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd");	\

+      return;								\

+   }									\

+} while (0)

+

+/**

+ * Macro to assert that the API call was made outside the

+ * glBegin()/glEnd() pair and flush the vertices.

+ * 

+ * \param ctx GL context.

+ */

+#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx)				\

+do {									\

+   ASSERT_OUTSIDE_BEGIN_END(ctx);					\

+   FLUSH_VERTICES(ctx, 0);						\

+} while (0)

+

+/**

+ * Macro to assert that the API call was made outside the

+ * glBegin()/glEnd() pair and flush the vertices, with return value.

+ * 

+ * \param ctx GL context.

+ * \param retval value to return value in case the assertion fails.

+ */

+#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval)	\

+do {									\

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval);			\

+   FLUSH_VERTICES(ctx, 0);						\

+} while (0)

+

+/*@}*/

+

+

+

+/**

+ * Is the secondary color needed?

+ */

+#define NEED_SECONDARY_COLOR(CTX)					\

+   (((CTX)->Light.Enabled &&						\

+     (CTX)->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)	\

+    || (CTX)->Fog.ColorSumEnabled					\

+    || ((CTX)->VertexProgram._Current &&				\

+        ((CTX)->VertexProgram._Current != (CTX)->VertexProgram._TnlProgram) &&    \

+        ((CTX)->VertexProgram._Current->Base.InputsRead & VERT_BIT_COLOR1)) \

+    || ((CTX)->FragmentProgram._Current &&				\

+        ((CTX)->FragmentProgram._Current != (CTX)->FragmentProgram._TexEnvProgram) &&  \

+        ((CTX)->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL1)) \

+   )

+

+

+/**

+ * Is RGBA LogicOp enabled?

+ */

+#define RGBA_LOGICOP_ENABLED(CTX) \

+  ((CTX)->Color.ColorLogicOpEnabled || \

+   ((CTX)->Color.BlendEnabled && (CTX)->Color.Blend[0].EquationRGB == GL_LOGIC_OP))

+

+

+#endif /* CONTEXT_H */

diff --git a/mesalib/src/mesa/main/depth.c b/mesalib/src/mesa/main/depth.c
index 52c69a6bc..d666ed5fe 100644
--- a/mesalib/src/mesa/main/depth.c
+++ b/mesalib/src/mesa/main/depth.c
@@ -1,174 +1,174 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "context.h"
-#include "depth.h"
-#include "enums.h"
-#include "macros.h"
-#include "mtypes.h"
-
-
-/**********************************************************************/
-/*****                          API Functions                     *****/
-/**********************************************************************/
-
-
-
-void GLAPIENTRY
-_mesa_ClearDepth( GLclampd depth )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glClearDepth(%f)\n", depth);
-
-   depth = CLAMP( depth, 0.0, 1.0 );
-
-   if (ctx->Depth.Clear == depth)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_DEPTH);
-   ctx->Depth.Clear = depth;
-   if (ctx->Driver.ClearDepth)
-      (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
-}
-
-
-void GLAPIENTRY
-_mesa_ClearDepthf( GLclampf depth )
-{
-   _mesa_ClearDepth(depth);
-}
-
-
-void GLAPIENTRY
-_mesa_DepthFunc( GLenum func )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));
-
-   switch (func) {
-   case GL_LESS:    /* (default) pass if incoming z < stored z */
-   case GL_GEQUAL:
-   case GL_LEQUAL:
-   case GL_GREATER:
-   case GL_NOTEQUAL:
-   case GL_EQUAL:
-   case GL_ALWAYS:
-   case GL_NEVER:
-      break;
-   default:
-      _mesa_error( ctx, GL_INVALID_ENUM, "glDepth.Func" );
-      return;
-   }
-
-   if (ctx->Depth.Func == func)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_DEPTH);
-   ctx->Depth.Func = func;
-
-   if (ctx->Driver.DepthFunc)
-      ctx->Driver.DepthFunc( ctx, func );
-}
-
-
-
-void GLAPIENTRY
-_mesa_DepthMask( GLboolean flag )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glDepthMask %d\n", flag);
-
-   /*
-    * GL_TRUE indicates depth buffer writing is enabled (default)
-    * GL_FALSE indicates depth buffer writing is disabled
-    */
-   if (ctx->Depth.Mask == flag)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_DEPTH);
-   ctx->Depth.Mask = flag;
-
-   if (ctx->Driver.DepthMask)
-      ctx->Driver.DepthMask( ctx, flag );
-}
-
-
-
-/**
- * Specified by the GL_EXT_depth_bounds_test extension.
- */
-void GLAPIENTRY
-_mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glDepthBounds(%f, %f)\n", zmin, zmax);
-
-   if (zmin > zmax) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glDepthBoundsEXT(zmin > zmax)");
-      return;
-   }
-
-   zmin = CLAMP(zmin, 0.0, 1.0);
-   zmax = CLAMP(zmax, 0.0, 1.0);
-
-   if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_DEPTH);
-   ctx->Depth.BoundsMin = (GLfloat) zmin;
-   ctx->Depth.BoundsMax = (GLfloat) zmax;
-}
-
-
-/**********************************************************************/
-/*****                      Initialization                        *****/
-/**********************************************************************/
-
-
-/**
- * Initialize the depth buffer attribute group in the given context.
- */
-void
-_mesa_init_depth(struct gl_context *ctx)
-{
-   ctx->Depth.Test = GL_FALSE;
-   ctx->Depth.Clear = 1.0;
-   ctx->Depth.Func = GL_LESS;
-   ctx->Depth.Mask = GL_TRUE;
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.1

+ *

+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+#include "glheader.h"

+#include "imports.h"

+#include "context.h"

+#include "depth.h"

+#include "enums.h"

+#include "macros.h"

+#include "mtypes.h"

+

+

+/**********************************************************************/

+/*****                          API Functions                     *****/

+/**********************************************************************/

+

+

+

+void GLAPIENTRY

+_mesa_ClearDepth( GLclampd depth )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glClearDepth(%f)\n", depth);

+

+   depth = CLAMP( depth, 0.0, 1.0 );

+

+   if (ctx->Depth.Clear == depth)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_DEPTH);

+   ctx->Depth.Clear = depth;

+   if (ctx->Driver.ClearDepth)

+      (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );

+}

+

+

+void GLAPIENTRY

+_mesa_ClearDepthf( GLclampf depth )

+{

+   _mesa_ClearDepth(depth);

+}

+

+

+void GLAPIENTRY

+_mesa_DepthFunc( GLenum func )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));

+

+   switch (func) {

+   case GL_LESS:    /* (default) pass if incoming z < stored z */

+   case GL_GEQUAL:

+   case GL_LEQUAL:

+   case GL_GREATER:

+   case GL_NOTEQUAL:

+   case GL_EQUAL:

+   case GL_ALWAYS:

+   case GL_NEVER:

+      break;

+   default:

+      _mesa_error( ctx, GL_INVALID_ENUM, "glDepth.Func" );

+      return;

+   }

+

+   if (ctx->Depth.Func == func)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_DEPTH);

+   ctx->Depth.Func = func;

+

+   if (ctx->Driver.DepthFunc)

+      ctx->Driver.DepthFunc( ctx, func );

+}

+

+

+

+void GLAPIENTRY

+_mesa_DepthMask( GLboolean flag )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glDepthMask %d\n", flag);

+

+   /*

+    * GL_TRUE indicates depth buffer writing is enabled (default)

+    * GL_FALSE indicates depth buffer writing is disabled

+    */

+   if (ctx->Depth.Mask == flag)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_DEPTH);

+   ctx->Depth.Mask = flag;

+

+   if (ctx->Driver.DepthMask)

+      ctx->Driver.DepthMask( ctx, flag );

+}

+

+

+

+/**

+ * Specified by the GL_EXT_depth_bounds_test extension.

+ */

+void GLAPIENTRY

+_mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glDepthBounds(%f, %f)\n", zmin, zmax);

+

+   if (zmin > zmax) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glDepthBoundsEXT(zmin > zmax)");

+      return;

+   }

+

+   zmin = CLAMP(zmin, 0.0, 1.0);

+   zmax = CLAMP(zmax, 0.0, 1.0);

+

+   if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_DEPTH);

+   ctx->Depth.BoundsMin = (GLfloat) zmin;

+   ctx->Depth.BoundsMax = (GLfloat) zmax;

+}

+

+

+/**********************************************************************/

+/*****                      Initialization                        *****/

+/**********************************************************************/

+

+

+/**

+ * Initialize the depth buffer attribute group in the given context.

+ */

+void

+_mesa_init_depth(struct gl_context *ctx)

+{

+   ctx->Depth.Test = GL_FALSE;

+   ctx->Depth.Clear = 1.0;

+   ctx->Depth.Func = GL_LESS;

+   ctx->Depth.Mask = GL_TRUE;

+}

diff --git a/mesalib/src/mesa/main/dlopen.c b/mesalib/src/mesa/main/dlopen.c
index 57a33292e..62d9023a9 100644
--- a/mesalib/src/mesa/main/dlopen.c
+++ b/mesalib/src/mesa/main/dlopen.c
@@ -51,7 +51,7 @@ _mesa_dlopen(const char *libname, int flags)
 #elif defined(_GNU_SOURCE)
    flags = RTLD_LAZY | RTLD_GLOBAL; /* Overriding flags at this time */
    return dlopen(libname, flags);
-#elif defined(__MINGW32__)
+#elif defined(__MINGW32__) | defined(_MSC_VER)
    return LoadLibraryA(libname);
 #else
    return NULL;
@@ -82,7 +82,7 @@ _mesa_dlsym(void *handle, const char *fname)
    u.v = dlsym(handle, fname2);
 #elif defined(_GNU_SOURCE)
    u.v = dlsym(handle, fname);
-#elif defined(__MINGW32__)
+#elif defined(__MINGW32__) | defined(_MSC_VER)
    u.v = (void *) GetProcAddress(handle, fname);
 #else
    u.v = NULL;
@@ -101,7 +101,7 @@ _mesa_dlclose(void *handle)
    (void) handle;
 #elif defined(_GNU_SOURCE)
    dlclose(handle);
-#elif defined(__MINGW32__)
+#elif defined(__MINGW32__) | defined(_MSC_VER)
    FreeLibrary(handle);
 #else
    (void) handle;
diff --git a/mesalib/src/mesa/main/hint.c b/mesalib/src/mesa/main/hint.c
index ff8d88fff..aea0d7022 100644
--- a/mesalib/src/mesa/main/hint.c
+++ b/mesalib/src/mesa/main/hint.c
@@ -1,147 +1,147 @@
-
-/*
- * Mesa 3-D graphics library
- * Version:  4.1
- *
- * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include "glheader.h"
-#include "enums.h"
-#include "context.h"
-#include "hint.h"
-#include "imports.h"
-#include "mtypes.h"
-
-
-
-void GLAPIENTRY
-_mesa_Hint( GLenum target, GLenum mode )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glHint %s %s\n",
-                  _mesa_lookup_enum_by_nr(target),
-                  _mesa_lookup_enum_by_nr(mode));
-
-   if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)");
-      return;
-   }
-
-   switch (target) {
-      case GL_FOG_HINT:
-         if (ctx->Hint.Fog == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.Fog = mode;
-         break;
-      case GL_LINE_SMOOTH_HINT:
-         if (ctx->Hint.LineSmooth == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.LineSmooth = mode;
-         break;
-      case GL_PERSPECTIVE_CORRECTION_HINT:
-         if (ctx->Hint.PerspectiveCorrection == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.PerspectiveCorrection = mode;
-         break;
-      case GL_POINT_SMOOTH_HINT:
-         if (ctx->Hint.PointSmooth == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.PointSmooth = mode;
-         break;
-      case GL_POLYGON_SMOOTH_HINT:
-         if (ctx->Hint.PolygonSmooth == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.PolygonSmooth = mode;
-         break;
-
-      /* GL_EXT_clip_volume_hint */
-      case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:
-         if (ctx->Hint.ClipVolumeClipping == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.ClipVolumeClipping = mode;
-         break;
-
-      /* GL_ARB_texture_compression */
-      case GL_TEXTURE_COMPRESSION_HINT_ARB:
-	 if (ctx->Hint.TextureCompression == mode)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-	 ctx->Hint.TextureCompression = mode;
-         break;
-
-      /* GL_SGIS_generate_mipmap */
-      case GL_GENERATE_MIPMAP_HINT_SGIS:
-         if (ctx->Hint.GenerateMipmap == mode)
-            return;
-	 FLUSH_VERTICES(ctx, _NEW_HINT);
-	 ctx->Hint.GenerateMipmap = mode;
-         break;
-
-      /* GL_ARB_fragment_shader */
-      case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB:
-         if (!ctx->Extensions.ARB_fragment_shader) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
-            return;
-         }
-         if (ctx->Hint.FragmentShaderDerivative == mode)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_HINT);
-         ctx->Hint.FragmentShaderDerivative = mode;
-         break;
-
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
-         return;
-   }
-
-   if (ctx->Driver.Hint) {
-      (*ctx->Driver.Hint)( ctx, target, mode );
-   }
-}
-
-
-/**********************************************************************/
-/*****                      Initialization                        *****/
-/**********************************************************************/
-
-void _mesa_init_hint( struct gl_context * ctx )
-{
-   /* Hint group */
-   ctx->Hint.PerspectiveCorrection = GL_DONT_CARE;
-   ctx->Hint.PointSmooth = GL_DONT_CARE;
-   ctx->Hint.LineSmooth = GL_DONT_CARE;
-   ctx->Hint.PolygonSmooth = GL_DONT_CARE;
-   ctx->Hint.Fog = GL_DONT_CARE;
-   ctx->Hint.ClipVolumeClipping = GL_DONT_CARE;
-   ctx->Hint.TextureCompression = GL_DONT_CARE;
-   ctx->Hint.GenerateMipmap = GL_DONT_CARE;
-   ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE;
-}
+

+/*

+ * Mesa 3-D graphics library

+ * Version:  4.1

+ *

+ * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+#include "glheader.h"

+#include "enums.h"

+#include "context.h"

+#include "hint.h"

+#include "imports.h"

+#include "mtypes.h"

+

+

+

+void GLAPIENTRY

+_mesa_Hint( GLenum target, GLenum mode )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glHint %s %s\n",

+                  _mesa_lookup_enum_by_nr(target),

+                  _mesa_lookup_enum_by_nr(mode));

+

+   if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)");

+      return;

+   }

+

+   switch (target) {

+      case GL_FOG_HINT:

+         if (ctx->Hint.Fog == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.Fog = mode;

+         break;

+      case GL_LINE_SMOOTH_HINT:

+         if (ctx->Hint.LineSmooth == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.LineSmooth = mode;

+         break;

+      case GL_PERSPECTIVE_CORRECTION_HINT:

+         if (ctx->Hint.PerspectiveCorrection == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.PerspectiveCorrection = mode;

+         break;

+      case GL_POINT_SMOOTH_HINT:

+         if (ctx->Hint.PointSmooth == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.PointSmooth = mode;

+         break;

+      case GL_POLYGON_SMOOTH_HINT:

+         if (ctx->Hint.PolygonSmooth == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.PolygonSmooth = mode;

+         break;

+

+      /* GL_EXT_clip_volume_hint */

+      case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:

+         if (ctx->Hint.ClipVolumeClipping == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.ClipVolumeClipping = mode;

+         break;

+

+      /* GL_ARB_texture_compression */

+      case GL_TEXTURE_COMPRESSION_HINT_ARB:

+	 if (ctx->Hint.TextureCompression == mode)

+	    return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+	 ctx->Hint.TextureCompression = mode;

+         break;

+

+      /* GL_SGIS_generate_mipmap */

+      case GL_GENERATE_MIPMAP_HINT_SGIS:

+         if (ctx->Hint.GenerateMipmap == mode)

+            return;

+	 FLUSH_VERTICES(ctx, _NEW_HINT);

+	 ctx->Hint.GenerateMipmap = mode;

+         break;

+

+      /* GL_ARB_fragment_shader */

+      case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB:

+         if (!ctx->Extensions.ARB_fragment_shader) {

+            _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");

+            return;

+         }

+         if (ctx->Hint.FragmentShaderDerivative == mode)

+            return;

+         FLUSH_VERTICES(ctx, _NEW_HINT);

+         ctx->Hint.FragmentShaderDerivative = mode;

+         break;

+

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");

+         return;

+   }

+

+   if (ctx->Driver.Hint) {

+      (*ctx->Driver.Hint)( ctx, target, mode );

+   }

+}

+

+

+/**********************************************************************/

+/*****                      Initialization                        *****/

+/**********************************************************************/

+

+void _mesa_init_hint( struct gl_context * ctx )

+{

+   /* Hint group */

+   ctx->Hint.PerspectiveCorrection = GL_DONT_CARE;

+   ctx->Hint.PointSmooth = GL_DONT_CARE;

+   ctx->Hint.LineSmooth = GL_DONT_CARE;

+   ctx->Hint.PolygonSmooth = GL_DONT_CARE;

+   ctx->Hint.Fog = GL_DONT_CARE;

+   ctx->Hint.ClipVolumeClipping = GL_DONT_CARE;

+   ctx->Hint.TextureCompression = GL_DONT_CARE;

+   ctx->Hint.GenerateMipmap = GL_DONT_CARE;

+   ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE;

+}

diff --git a/mesalib/src/mesa/main/lines.c b/mesalib/src/mesa/main/lines.c
index 79bf5679d..1df409f45 100644
--- a/mesalib/src/mesa/main/lines.c
+++ b/mesalib/src/mesa/main/lines.c
@@ -1,117 +1,117 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5.3
- *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include "glheader.h"
-#include "context.h"
-#include "lines.h"
-#include "macros.h"
-#include "mtypes.h"
-
-
-/**
- * Set the line width.
- *
- * \param width line width in pixels.
- *
- * \sa glLineWidth().
- */
-void GLAPIENTRY
-_mesa_LineWidth( GLfloat width )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glLineWidth %f\n", width);
-
-   if (width<=0.0) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
-      return;
-   }
-
-   if (ctx->Line.Width == width)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_LINE);
-   ctx->Line.Width = width;
-
-   if (ctx->Driver.LineWidth)
-      ctx->Driver.LineWidth(ctx, width);
-}
-
-
-/**
- * Set the line stipple pattern.
- *
- * \param factor pattern scale factor.
- * \param pattern bit pattern.
- * 
- * \sa glLineStipple().
- *
- * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On
- * change flushes the vertices and notifies the driver via
- * the dd_function_table::LineStipple callback.
- */
-void GLAPIENTRY
-_mesa_LineStipple( GLint factor, GLushort pattern )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glLineStipple %d %u\n", factor, pattern);
-
-   factor = CLAMP( factor, 1, 256 );
-
-   if (ctx->Line.StippleFactor == factor &&
-       ctx->Line.StipplePattern == pattern)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_LINE);
-   ctx->Line.StippleFactor = factor;
-   ctx->Line.StipplePattern = pattern;
-
-   if (ctx->Driver.LineStipple)
-      ctx->Driver.LineStipple( ctx, factor, pattern );
-}
-
-
-/**
- * Initialize the context line state.
- *
- * \param ctx GL context.
- *
- * Initializes __struct gl_contextRec::Line and line related constants in
- * __struct gl_contextRec::Const.
- */
-void GLAPIENTRY
-_mesa_init_line( struct gl_context * ctx )
-{
-   ctx->Line.SmoothFlag = GL_FALSE;
-   ctx->Line.StippleFlag = GL_FALSE;
-   ctx->Line.Width = 1.0;
-   ctx->Line.StipplePattern = 0xffff;
-   ctx->Line.StippleFactor = 1;
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  6.5.3

+ *

+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+#include "glheader.h"

+#include "context.h"

+#include "lines.h"

+#include "macros.h"

+#include "mtypes.h"

+

+

+/**

+ * Set the line width.

+ *

+ * \param width line width in pixels.

+ *

+ * \sa glLineWidth().

+ */

+void GLAPIENTRY

+_mesa_LineWidth( GLfloat width )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glLineWidth %f\n", width);

+

+   if (width<=0.0) {

+      _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );

+      return;

+   }

+

+   if (ctx->Line.Width == width)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_LINE);

+   ctx->Line.Width = width;

+

+   if (ctx->Driver.LineWidth)

+      ctx->Driver.LineWidth(ctx, width);

+}

+

+

+/**

+ * Set the line stipple pattern.

+ *

+ * \param factor pattern scale factor.

+ * \param pattern bit pattern.

+ * 

+ * \sa glLineStipple().

+ *

+ * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On

+ * change flushes the vertices and notifies the driver via

+ * the dd_function_table::LineStipple callback.

+ */

+void GLAPIENTRY

+_mesa_LineStipple( GLint factor, GLushort pattern )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glLineStipple %d %u\n", factor, pattern);

+

+   factor = CLAMP( factor, 1, 256 );

+

+   if (ctx->Line.StippleFactor == factor &&

+       ctx->Line.StipplePattern == pattern)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_LINE);

+   ctx->Line.StippleFactor = factor;

+   ctx->Line.StipplePattern = pattern;

+

+   if (ctx->Driver.LineStipple)

+      ctx->Driver.LineStipple( ctx, factor, pattern );

+}

+

+

+/**

+ * Initialize the context line state.

+ *

+ * \param ctx GL context.

+ *

+ * Initializes __struct gl_contextRec::Line and line related constants in

+ * __struct gl_contextRec::Const.

+ */

+void GLAPIENTRY

+_mesa_init_line( struct gl_context * ctx )

+{

+   ctx->Line.SmoothFlag = GL_FALSE;

+   ctx->Line.StippleFlag = GL_FALSE;

+   ctx->Line.Width = 1.0;

+   ctx->Line.StipplePattern = 0xffff;

+   ctx->Line.StippleFactor = 1;

+}

diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index b5966dffe..714d63afc 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -1,3370 +1,3370 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.7
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file mtypes.h
- * Main Mesa data structures.
- *
- * Please try to mark derived values with a leading underscore ('_').
- */
-
-#ifndef MTYPES_H
-#define MTYPES_H
-
-
-#include "main/glheader.h"
-#include "main/config.h"
-#include "main/mfeatures.h"
-#include "glapi/glapi.h"
-#include "math/m_matrix.h"	/* GLmatrix */
-#include "main/simple_list.h"	/* struct simple_node */
-#include "main/formats.h"       /* MESA_FORMAT_COUNT */
-
-
-/**
- * Color channel data type.
- */
-#if CHAN_BITS == 8
-   typedef GLubyte GLchan;
-#define CHAN_MAX 255
-#define CHAN_MAXF 255.0F
-#define CHAN_TYPE GL_UNSIGNED_BYTE
-#elif CHAN_BITS == 16
-   typedef GLushort GLchan;
-#define CHAN_MAX 65535
-#define CHAN_MAXF 65535.0F
-#define CHAN_TYPE GL_UNSIGNED_SHORT
-#elif CHAN_BITS == 32
-   typedef GLfloat GLchan;
-#define CHAN_MAX 1.0
-#define CHAN_MAXF 1.0F
-#define CHAN_TYPE GL_FLOAT
-#else
-#error "illegal number of color channel bits"
-#endif
-
-
-/**
- * Stencil buffer data type.
- */
-#if STENCIL_BITS==8
-   typedef GLubyte GLstencil;
-#elif STENCIL_BITS==16
-   typedef GLushort GLstencil;
-#else
-#  error "illegal number of stencil bits"
-#endif
-
-
-/**
- * \name 64-bit extension of GLbitfield.
- */
-/*@{*/
-typedef GLuint64 GLbitfield64;
-
-/** Set a single bit */
-#define BITFIELD64_BIT(b)      (1ULL << (b))
-
-
-/**
- * \name Some forward type declarations
- */
-/*@{*/
-struct _mesa_HashTable;
-struct gl_attrib_node;
-struct gl_list_extensions;
-struct gl_meta_state;
-struct gl_pixelstore_attrib;
-struct gl_program_cache;
-struct gl_texture_format;
-struct gl_texture_image;
-struct gl_texture_object;
-struct gl_context;
-struct st_context;
-/*@}*/
-
-
-/** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
-#define PRIM_OUTSIDE_BEGIN_END   (GL_POLYGON+1)
-#define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2)
-#define PRIM_UNKNOWN             (GL_POLYGON+3)
-
-
-/**
- * Shader stages. Note that these will become 5 with tessellation.
- * These MUST have the same values as gallium's PIPE_SHADER_*
- */
-typedef enum
-{
-   MESA_SHADER_VERTEX = 0,
-   MESA_SHADER_FRAGMENT = 1,
-   MESA_SHADER_GEOMETRY = 2,
-   MESA_SHADER_TYPES = 3
-} gl_shader_type;
-
-
-
-/**
- * Indexes for vertex program attributes.
- * GL_NV_vertex_program aliases generic attributes over the conventional
- * attributes.  In GL_ARB_vertex_program shader the aliasing is optional.
- * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
- * generic attributes are distinct/separate).
- */
-typedef enum
-{
-   VERT_ATTRIB_POS = 0,
-   VERT_ATTRIB_WEIGHT = 1,
-   VERT_ATTRIB_NORMAL = 2,
-   VERT_ATTRIB_COLOR0 = 3,
-   VERT_ATTRIB_COLOR1 = 4,
-   VERT_ATTRIB_FOG = 5,
-   VERT_ATTRIB_COLOR_INDEX = 6,
-   VERT_ATTRIB_POINT_SIZE = 6,  /*alias*/
-   VERT_ATTRIB_EDGEFLAG = 7,
-   VERT_ATTRIB_TEX0 = 8,
-   VERT_ATTRIB_TEX1 = 9,
-   VERT_ATTRIB_TEX2 = 10,
-   VERT_ATTRIB_TEX3 = 11,
-   VERT_ATTRIB_TEX4 = 12,
-   VERT_ATTRIB_TEX5 = 13,
-   VERT_ATTRIB_TEX6 = 14,
-   VERT_ATTRIB_TEX7 = 15,
-   VERT_ATTRIB_GENERIC0 = 16,
-   VERT_ATTRIB_GENERIC1 = 17,
-   VERT_ATTRIB_GENERIC2 = 18,
-   VERT_ATTRIB_GENERIC3 = 19,
-   VERT_ATTRIB_GENERIC4 = 20,
-   VERT_ATTRIB_GENERIC5 = 21,
-   VERT_ATTRIB_GENERIC6 = 22,
-   VERT_ATTRIB_GENERIC7 = 23,
-   VERT_ATTRIB_GENERIC8 = 24,
-   VERT_ATTRIB_GENERIC9 = 25,
-   VERT_ATTRIB_GENERIC10 = 26,
-   VERT_ATTRIB_GENERIC11 = 27,
-   VERT_ATTRIB_GENERIC12 = 28,
-   VERT_ATTRIB_GENERIC13 = 29,
-   VERT_ATTRIB_GENERIC14 = 30,
-   VERT_ATTRIB_GENERIC15 = 31,
-   VERT_ATTRIB_MAX = 32
-} gl_vert_attrib;
-
-/**
- * Bitflags for vertex attributes.
- * These are used in bitfields in many places.
- */
-/*@{*/
-#define VERT_BIT_POS         (1 << VERT_ATTRIB_POS)
-#define VERT_BIT_WEIGHT      (1 << VERT_ATTRIB_WEIGHT)
-#define VERT_BIT_NORMAL      (1 << VERT_ATTRIB_NORMAL)
-#define VERT_BIT_COLOR0      (1 << VERT_ATTRIB_COLOR0)
-#define VERT_BIT_COLOR1      (1 << VERT_ATTRIB_COLOR1)
-#define VERT_BIT_FOG         (1 << VERT_ATTRIB_FOG)
-#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
-#define VERT_BIT_EDGEFLAG    (1 << VERT_ATTRIB_EDGEFLAG)
-#define VERT_BIT_TEX0        (1 << VERT_ATTRIB_TEX0)
-#define VERT_BIT_TEX1        (1 << VERT_ATTRIB_TEX1)
-#define VERT_BIT_TEX2        (1 << VERT_ATTRIB_TEX2)
-#define VERT_BIT_TEX3        (1 << VERT_ATTRIB_TEX3)
-#define VERT_BIT_TEX4        (1 << VERT_ATTRIB_TEX4)
-#define VERT_BIT_TEX5        (1 << VERT_ATTRIB_TEX5)
-#define VERT_BIT_TEX6        (1 << VERT_ATTRIB_TEX6)
-#define VERT_BIT_TEX7        (1 << VERT_ATTRIB_TEX7)
-#define VERT_BIT_GENERIC0    (1 << VERT_ATTRIB_GENERIC0)
-#define VERT_BIT_GENERIC1    (1 << VERT_ATTRIB_GENERIC1)
-#define VERT_BIT_GENERIC2    (1 << VERT_ATTRIB_GENERIC2)
-#define VERT_BIT_GENERIC3    (1 << VERT_ATTRIB_GENERIC3)
-#define VERT_BIT_GENERIC4    (1 << VERT_ATTRIB_GENERIC4)
-#define VERT_BIT_GENERIC5    (1 << VERT_ATTRIB_GENERIC5)
-#define VERT_BIT_GENERIC6    (1 << VERT_ATTRIB_GENERIC6)
-#define VERT_BIT_GENERIC7    (1 << VERT_ATTRIB_GENERIC7)
-#define VERT_BIT_GENERIC8    (1 << VERT_ATTRIB_GENERIC8)
-#define VERT_BIT_GENERIC9    (1 << VERT_ATTRIB_GENERIC9)
-#define VERT_BIT_GENERIC10   (1 << VERT_ATTRIB_GENERIC10)
-#define VERT_BIT_GENERIC11   (1 << VERT_ATTRIB_GENERIC11)
-#define VERT_BIT_GENERIC12   (1 << VERT_ATTRIB_GENERIC12)
-#define VERT_BIT_GENERIC13   (1 << VERT_ATTRIB_GENERIC13)
-#define VERT_BIT_GENERIC14   (1 << VERT_ATTRIB_GENERIC14)
-#define VERT_BIT_GENERIC15   (1 << VERT_ATTRIB_GENERIC15)
-
-#define VERT_BIT_TEX(u)  (1 << (VERT_ATTRIB_TEX0 + (u)))
-#define VERT_BIT_GENERIC(g)  (1 << (VERT_ATTRIB_GENERIC0 + (g)))
-/*@}*/
-
-
-/**
- * Indexes for vertex program result attributes
- */
-typedef enum
-{
-   VERT_RESULT_HPOS = 0,
-   VERT_RESULT_COL0 = 1,
-   VERT_RESULT_COL1 = 2,
-   VERT_RESULT_FOGC = 3,
-   VERT_RESULT_TEX0 = 4,
-   VERT_RESULT_TEX1 = 5,
-   VERT_RESULT_TEX2 = 6,
-   VERT_RESULT_TEX3 = 7,
-   VERT_RESULT_TEX4 = 8,
-   VERT_RESULT_TEX5 = 9,
-   VERT_RESULT_TEX6 = 10,
-   VERT_RESULT_TEX7 = 11,
-   VERT_RESULT_PSIZ = 12,
-   VERT_RESULT_BFC0 = 13,
-   VERT_RESULT_BFC1 = 14,
-   VERT_RESULT_EDGE = 15,
-   VERT_RESULT_VAR0 = 16,  /**< shader varying */
-   VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING)
-} gl_vert_result;
-
-
-/*********************************************/
-
-/**
- * Indexes for geometry program attributes.
- */
-typedef enum
-{
-   GEOM_ATTRIB_POSITION = 0,
-   GEOM_ATTRIB_COLOR0 = 1,
-   GEOM_ATTRIB_COLOR1 = 2,
-   GEOM_ATTRIB_SECONDARY_COLOR0 = 3,
-   GEOM_ATTRIB_SECONDARY_COLOR1 = 4,
-   GEOM_ATTRIB_FOG_FRAG_COORD = 5,
-   GEOM_ATTRIB_POINT_SIZE = 6,
-   GEOM_ATTRIB_CLIP_VERTEX = 7,
-   GEOM_ATTRIB_PRIMITIVE_ID = 8,
-   GEOM_ATTRIB_TEX_COORD = 9,
-
-   GEOM_ATTRIB_VAR0 = 16,
-   GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING)
-} gl_geom_attrib;
-
-/**
- * Bitflags for geometry attributes.
- * These are used in bitfields in many places.
- */
-/*@{*/
-#define GEOM_BIT_COLOR0      (1 << GEOM_ATTRIB_COLOR0)
-#define GEOM_BIT_COLOR1      (1 << GEOM_ATTRIB_COLOR1)
-#define GEOM_BIT_SCOLOR0     (1 << GEOM_ATTRIB_SECONDARY_COLOR0)
-#define GEOM_BIT_SCOLOR1     (1 << GEOM_ATTRIB_SECONDARY_COLOR1)
-#define GEOM_BIT_TEX_COORD   (1 << GEOM_ATTRIB_TEX_COORD)
-#define GEOM_BIT_FOG_COORD   (1 << GEOM_ATTRIB_FOG_FRAG_COORD)
-#define GEOM_BIT_POSITION    (1 << GEOM_ATTRIB_POSITION)
-#define GEOM_BIT_POINT_SIDE  (1 << GEOM_ATTRIB_POINT_SIZE)
-#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)
-#define GEOM_BIT_PRIM_ID     (1 << GEOM_ATTRIB_PRIMITIVE_ID)
-#define GEOM_BIT_VAR0        (1 << GEOM_ATTRIB_VAR0)
-
-#define GEOM_BIT_VAR(g)  (1 << (GEOM_BIT_VAR0 + (g)))
-/*@}*/
-
-
-/**
- * Indexes for geometry program result attributes
- */
-typedef enum
-{
-   GEOM_RESULT_POS  = 0,
-   GEOM_RESULT_COL0  = 1,
-   GEOM_RESULT_COL1  = 2,
-   GEOM_RESULT_SCOL0 = 3,
-   GEOM_RESULT_SCOL1 = 4,
-   GEOM_RESULT_FOGC = 5,
-   GEOM_RESULT_TEX0 = 6,
-   GEOM_RESULT_TEX1 = 7,
-   GEOM_RESULT_TEX2 = 8,
-   GEOM_RESULT_TEX3 = 9,
-   GEOM_RESULT_TEX4 = 10,
-   GEOM_RESULT_TEX5 = 11,
-   GEOM_RESULT_TEX6 = 12,
-   GEOM_RESULT_TEX7 = 13,
-   GEOM_RESULT_PSIZ = 14,
-   GEOM_RESULT_CLPV = 15,
-   GEOM_RESULT_PRID = 16,
-   GEOM_RESULT_LAYR = 17,
-   GEOM_RESULT_VAR0 = 18,  /**< shader varying, should really be 16 */
-   /* ### we need to -2 because var0 is 18 instead 16 like in the others */
-   GEOM_RESULT_MAX  =  (GEOM_RESULT_VAR0 + MAX_VARYING - 2)
-} gl_geom_result;
-
-
-/**
- * Indexes for fragment program input attributes.
- */
-typedef enum
-{
-   FRAG_ATTRIB_WPOS = 0,
-   FRAG_ATTRIB_COL0 = 1,
-   FRAG_ATTRIB_COL1 = 2,
-   FRAG_ATTRIB_FOGC = 3,
-   FRAG_ATTRIB_TEX0 = 4,
-   FRAG_ATTRIB_TEX1 = 5,
-   FRAG_ATTRIB_TEX2 = 6,
-   FRAG_ATTRIB_TEX3 = 7,
-   FRAG_ATTRIB_TEX4 = 8,
-   FRAG_ATTRIB_TEX5 = 9,
-   FRAG_ATTRIB_TEX6 = 10,
-   FRAG_ATTRIB_TEX7 = 11,
-   FRAG_ATTRIB_FACE = 12,  /**< front/back face */
-   FRAG_ATTRIB_PNTC = 13,  /**< sprite/point coord */
-   FRAG_ATTRIB_VAR0 = 14,  /**< shader varying */
-   FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING)
-} gl_frag_attrib;
-
-/**
- * Bitflags for fragment program input attributes.
- */
-/*@{*/
-#define FRAG_BIT_WPOS  (1 << FRAG_ATTRIB_WPOS)
-#define FRAG_BIT_COL0  (1 << FRAG_ATTRIB_COL0)
-#define FRAG_BIT_COL1  (1 << FRAG_ATTRIB_COL1)
-#define FRAG_BIT_FOGC  (1 << FRAG_ATTRIB_FOGC)
-#define FRAG_BIT_FACE  (1 << FRAG_ATTRIB_FACE)
-#define FRAG_BIT_PNTC  (1 << FRAG_ATTRIB_PNTC)
-#define FRAG_BIT_TEX0  (1 << FRAG_ATTRIB_TEX0)
-#define FRAG_BIT_TEX1  (1 << FRAG_ATTRIB_TEX1)
-#define FRAG_BIT_TEX2  (1 << FRAG_ATTRIB_TEX2)
-#define FRAG_BIT_TEX3  (1 << FRAG_ATTRIB_TEX3)
-#define FRAG_BIT_TEX4  (1 << FRAG_ATTRIB_TEX4)
-#define FRAG_BIT_TEX5  (1 << FRAG_ATTRIB_TEX5)
-#define FRAG_BIT_TEX6  (1 << FRAG_ATTRIB_TEX6)
-#define FRAG_BIT_TEX7  (1 << FRAG_ATTRIB_TEX7)
-#define FRAG_BIT_VAR0  (1 << FRAG_ATTRIB_VAR0)
-
-#define FRAG_BIT_TEX(U)  (FRAG_BIT_TEX0 << (U))
-#define FRAG_BIT_VAR(V)  (FRAG_BIT_VAR0 << (V))
-
-#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0|	\
-			   FRAG_BIT_TEX1|	\
-			   FRAG_BIT_TEX2|	\
-			   FRAG_BIT_TEX3|	\
-			   FRAG_BIT_TEX4|	\
-			   FRAG_BIT_TEX5|	\
-			   FRAG_BIT_TEX6|	\
-			   FRAG_BIT_TEX7)
-/*@}*/
-
-
-/**
- * Fragment program results
- */
-typedef enum
-{
-   FRAG_RESULT_DEPTH = 0,
-   FRAG_RESULT_STENCIL = 1,
-   FRAG_RESULT_COLOR = 2,
-   FRAG_RESULT_DATA0 = 3,
-   FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS)
-} gl_frag_result;
-
-
-/**
- * Indexes for all renderbuffers
- */
-typedef enum
-{
-   /* the four standard color buffers */
-   BUFFER_FRONT_LEFT,
-   BUFFER_BACK_LEFT,
-   BUFFER_FRONT_RIGHT,
-   BUFFER_BACK_RIGHT,
-   BUFFER_DEPTH,
-   BUFFER_STENCIL,
-   BUFFER_ACCUM,
-   /* optional aux buffer */
-   BUFFER_AUX0,
-   /* generic renderbuffers */
-   BUFFER_COLOR0,
-   BUFFER_COLOR1,
-   BUFFER_COLOR2,
-   BUFFER_COLOR3,
-   BUFFER_COLOR4,
-   BUFFER_COLOR5,
-   BUFFER_COLOR6,
-   BUFFER_COLOR7,
-   BUFFER_COUNT
-} gl_buffer_index;
-
-/**
- * Bit flags for all renderbuffers
- */
-#define BUFFER_BIT_FRONT_LEFT   (1 << BUFFER_FRONT_LEFT)
-#define BUFFER_BIT_BACK_LEFT    (1 << BUFFER_BACK_LEFT)
-#define BUFFER_BIT_FRONT_RIGHT  (1 << BUFFER_FRONT_RIGHT)
-#define BUFFER_BIT_BACK_RIGHT   (1 << BUFFER_BACK_RIGHT)
-#define BUFFER_BIT_AUX0         (1 << BUFFER_AUX0)
-#define BUFFER_BIT_AUX1         (1 << BUFFER_AUX1)
-#define BUFFER_BIT_AUX2         (1 << BUFFER_AUX2)
-#define BUFFER_BIT_AUX3         (1 << BUFFER_AUX3)
-#define BUFFER_BIT_DEPTH        (1 << BUFFER_DEPTH)
-#define BUFFER_BIT_STENCIL      (1 << BUFFER_STENCIL)
-#define BUFFER_BIT_ACCUM        (1 << BUFFER_ACCUM)
-#define BUFFER_BIT_COLOR0       (1 << BUFFER_COLOR0)
-#define BUFFER_BIT_COLOR1       (1 << BUFFER_COLOR1)
-#define BUFFER_BIT_COLOR2       (1 << BUFFER_COLOR2)
-#define BUFFER_BIT_COLOR3       (1 << BUFFER_COLOR3)
-#define BUFFER_BIT_COLOR4       (1 << BUFFER_COLOR4)
-#define BUFFER_BIT_COLOR5       (1 << BUFFER_COLOR5)
-#define BUFFER_BIT_COLOR6       (1 << BUFFER_COLOR6)
-#define BUFFER_BIT_COLOR7       (1 << BUFFER_COLOR7)
-
-/**
- * Mask of all the color buffer bits (but not accum).
- */
-#define BUFFER_BITS_COLOR  (BUFFER_BIT_FRONT_LEFT | \
-                            BUFFER_BIT_BACK_LEFT | \
-                            BUFFER_BIT_FRONT_RIGHT | \
-                            BUFFER_BIT_BACK_RIGHT | \
-                            BUFFER_BIT_AUX0 | \
-                            BUFFER_BIT_COLOR0 | \
-                            BUFFER_BIT_COLOR1 | \
-                            BUFFER_BIT_COLOR2 | \
-                            BUFFER_BIT_COLOR3 | \
-                            BUFFER_BIT_COLOR4 | \
-                            BUFFER_BIT_COLOR5 | \
-                            BUFFER_BIT_COLOR6 | \
-                            BUFFER_BIT_COLOR7)
-
-
-/**
- * Framebuffer configuration (aka visual / pixelformat)
- * Note: some of these fields should be boolean, but it appears that
- * code in drivers/dri/common/util.c requires int-sized fields.
- */
-struct gl_config
-{
-   GLboolean rgbMode;
-   GLboolean floatMode;
-   GLboolean colorIndexMode;  /* XXX is this used anywhere? */
-   GLuint doubleBufferMode;
-   GLuint stereoMode;
-
-   GLboolean haveAccumBuffer;
-   GLboolean haveDepthBuffer;
-   GLboolean haveStencilBuffer;
-
-   GLint redBits, greenBits, blueBits, alphaBits;	/* bits per comp */
-   GLuint redMask, greenMask, blueMask, alphaMask;
-   GLint rgbBits;		/* total bits for rgb */
-   GLint indexBits;		/* total bits for colorindex */
-
-   GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
-   GLint depthBits;
-   GLint stencilBits;
-
-   GLint numAuxBuffers;
-
-   GLint level;
-
-   /* EXT_visual_rating / GLX 1.2 */
-   GLint visualRating;
-
-   /* EXT_visual_info / GLX 1.2 */
-   GLint transparentPixel;
-   /*    colors are floats scaled to ints */
-   GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;
-   GLint transparentIndex;
-
-   /* ARB_multisample / SGIS_multisample */
-   GLint sampleBuffers;
-   GLint samples;
-
-   /* SGIX_pbuffer / GLX 1.3 */
-   GLint maxPbufferWidth;
-   GLint maxPbufferHeight;
-   GLint maxPbufferPixels;
-   GLint optimalPbufferWidth;   /* Only for SGIX_pbuffer. */
-   GLint optimalPbufferHeight;  /* Only for SGIX_pbuffer. */
-
-   /* OML_swap_method */
-   GLint swapMethod;
-
-   /* EXT_texture_from_pixmap */
-   GLint bindToTextureRgb;
-   GLint bindToTextureRgba;
-   GLint bindToMipmapTexture;
-   GLint bindToTextureTargets;
-   GLint yInverted;
-
-   /* EXT_framebuffer_sRGB */
-   GLint sRGBCapable;
-};
-
-
-/**
- * Data structure for color tables
- */
-struct gl_color_table
-{
-   GLenum InternalFormat;      /**< The user-specified format */
-   GLenum _BaseFormat;         /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */
-   GLuint Size;                /**< number of entries in table */
-   GLfloat *TableF;            /**< Color table, floating point values */
-   GLubyte *TableUB;           /**< Color table, ubyte values */
-   GLubyte RedSize;
-   GLubyte GreenSize;
-   GLubyte BlueSize;
-   GLubyte AlphaSize;
-   GLubyte LuminanceSize;
-   GLubyte IntensitySize;
-};
-
-
-/**
- * \name Bit flags used for updating material values.
- */
-/*@{*/
-#define MAT_ATTRIB_FRONT_AMBIENT           0 
-#define MAT_ATTRIB_BACK_AMBIENT            1
-#define MAT_ATTRIB_FRONT_DIFFUSE           2 
-#define MAT_ATTRIB_BACK_DIFFUSE            3
-#define MAT_ATTRIB_FRONT_SPECULAR          4 
-#define MAT_ATTRIB_BACK_SPECULAR           5
-#define MAT_ATTRIB_FRONT_EMISSION          6
-#define MAT_ATTRIB_BACK_EMISSION           7
-#define MAT_ATTRIB_FRONT_SHININESS         8
-#define MAT_ATTRIB_BACK_SHININESS          9
-#define MAT_ATTRIB_FRONT_INDEXES           10
-#define MAT_ATTRIB_BACK_INDEXES            11
-#define MAT_ATTRIB_MAX                     12
-
-#define MAT_ATTRIB_AMBIENT(f)  (MAT_ATTRIB_FRONT_AMBIENT+(f))  
-#define MAT_ATTRIB_DIFFUSE(f)  (MAT_ATTRIB_FRONT_DIFFUSE+(f))  
-#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f)) 
-#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f)) 
-#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
-#define MAT_ATTRIB_INDEXES(f)  (MAT_ATTRIB_FRONT_INDEXES+(f))  
-
-#define MAT_INDEX_AMBIENT  0
-#define MAT_INDEX_DIFFUSE  1
-#define MAT_INDEX_SPECULAR 2
-
-#define MAT_BIT_FRONT_AMBIENT         (1<<MAT_ATTRIB_FRONT_AMBIENT)
-#define MAT_BIT_BACK_AMBIENT          (1<<MAT_ATTRIB_BACK_AMBIENT)
-#define MAT_BIT_FRONT_DIFFUSE         (1<<MAT_ATTRIB_FRONT_DIFFUSE)
-#define MAT_BIT_BACK_DIFFUSE          (1<<MAT_ATTRIB_BACK_DIFFUSE)
-#define MAT_BIT_FRONT_SPECULAR        (1<<MAT_ATTRIB_FRONT_SPECULAR)
-#define MAT_BIT_BACK_SPECULAR         (1<<MAT_ATTRIB_BACK_SPECULAR)
-#define MAT_BIT_FRONT_EMISSION        (1<<MAT_ATTRIB_FRONT_EMISSION)
-#define MAT_BIT_BACK_EMISSION         (1<<MAT_ATTRIB_BACK_EMISSION)
-#define MAT_BIT_FRONT_SHININESS       (1<<MAT_ATTRIB_FRONT_SHININESS)
-#define MAT_BIT_BACK_SHININESS        (1<<MAT_ATTRIB_BACK_SHININESS)
-#define MAT_BIT_FRONT_INDEXES         (1<<MAT_ATTRIB_FRONT_INDEXES)
-#define MAT_BIT_BACK_INDEXES          (1<<MAT_ATTRIB_BACK_INDEXES)
-
-
-#define FRONT_MATERIAL_BITS	(MAT_BIT_FRONT_EMISSION | 	\
-				 MAT_BIT_FRONT_AMBIENT |	\
-				 MAT_BIT_FRONT_DIFFUSE | 	\
-				 MAT_BIT_FRONT_SPECULAR |	\
-				 MAT_BIT_FRONT_SHININESS | 	\
-				 MAT_BIT_FRONT_INDEXES)
-
-#define BACK_MATERIAL_BITS	(MAT_BIT_BACK_EMISSION |	\
-				 MAT_BIT_BACK_AMBIENT |		\
-				 MAT_BIT_BACK_DIFFUSE |		\
-				 MAT_BIT_BACK_SPECULAR |	\
-				 MAT_BIT_BACK_SHININESS |	\
-				 MAT_BIT_BACK_INDEXES)
-
-#define ALL_MATERIAL_BITS	(FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
-/*@}*/
-
-
-#define EXP_TABLE_SIZE 512	/**< Specular exponent lookup table sizes */
-#define SHINE_TABLE_SIZE 256	/**< Material shininess lookup table sizes */
-
-/**
- * Material shininess lookup table.
- */
-struct gl_shine_tab
-{
-   struct gl_shine_tab *next, *prev;
-   GLfloat tab[SHINE_TABLE_SIZE+1];
-   GLfloat shininess;
-   GLuint refcount;
-};
-
-
-/**
- * Light source state.
- */
-struct gl_light
-{
-   struct gl_light *next;	/**< double linked list with sentinel */
-   struct gl_light *prev;
-
-   GLfloat Ambient[4];		/**< ambient color */
-   GLfloat Diffuse[4];		/**< diffuse color */
-   GLfloat Specular[4];		/**< specular color */
-   GLfloat EyePosition[4];	/**< position in eye coordinates */
-   GLfloat SpotDirection[4];	/**< spotlight direction in eye coordinates */
-   GLfloat SpotExponent;
-   GLfloat SpotCutoff;		/**< in degrees */
-   GLfloat _CosCutoffNeg;	/**< = cos(SpotCutoff) */
-   GLfloat _CosCutoff;		/**< = MAX(0, cos(SpotCutoff)) */
-   GLfloat ConstantAttenuation;
-   GLfloat LinearAttenuation;
-   GLfloat QuadraticAttenuation;
-   GLboolean Enabled;		/**< On/off flag */
-
-   /** 
-    * \name Derived fields
-    */
-   /*@{*/
-   GLbitfield _Flags;		/**< State */
-
-   GLfloat _Position[4];	/**< position in eye/obj coordinates */
-   GLfloat _VP_inf_norm[3];	/**< Norm direction to infinite light */
-   GLfloat _h_inf_norm[3];	/**< Norm( _VP_inf_norm + <0,0,1> ) */
-   GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */
-   GLfloat _VP_inf_spot_attenuation;
-
-   GLfloat _SpotExpTable[EXP_TABLE_SIZE][2];  /**< to replace a pow() call */
-   GLfloat _MatAmbient[2][3];	/**< material ambient * light ambient */
-   GLfloat _MatDiffuse[2][3];	/**< material diffuse * light diffuse */
-   GLfloat _MatSpecular[2][3];	/**< material spec * light specular */
-   GLfloat _dli;		/**< CI diffuse light intensity */
-   GLfloat _sli;		/**< CI specular light intensity */
-   /*@}*/
-};
-
-
-/**
- * Light model state.
- */
-struct gl_lightmodel
-{
-   GLfloat Ambient[4];		/**< ambient color */
-   GLboolean LocalViewer;	/**< Local (or infinite) view point? */
-   GLboolean TwoSide;		/**< Two (or one) sided lighting? */
-   GLenum ColorControl;		/**< either GL_SINGLE_COLOR
-				 *    or GL_SEPARATE_SPECULAR_COLOR */
-};
-
-
-/**
- * Material state.
- */
-struct gl_material
-{
-   GLfloat Attrib[MAT_ATTRIB_MAX][4];
-};
-
-
-/**
- * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
- */
-struct gl_accum_attrib
-{
-   GLfloat ClearColor[4];	/**< Accumulation buffer clear color */
-};
-
-
-/**
- * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
- */
-struct gl_colorbuffer_attrib
-{
-   GLuint ClearIndex;			/**< Index to use for glClear */
-   GLclampf ClearColor[4];		/**< Color to use for glClear */
-
-   GLuint IndexMask;			/**< Color index write mask */
-   GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */
-
-   GLenum DrawBuffer[MAX_DRAW_BUFFERS];	/**< Which buffer to draw into */
-
-   /** 
-    * \name alpha testing
-    */
-   /*@{*/
-   GLboolean AlphaEnabled;		/**< Alpha test enabled flag */
-   GLenum AlphaFunc;			/**< Alpha test function */
-   GLclampf AlphaRef;			/**< Alpha reference value */
-   /*@}*/
-
-   /** 
-    * \name Blending
-    */
-   /*@{*/
-   GLbitfield BlendEnabled;		/**< Per-buffer blend enable flags */
-   GLfloat BlendColor[4];		/**< Blending color */
-   struct
-   {
-      GLenum SrcRGB;             /**< RGB blend source term */
-      GLenum DstRGB;             /**< RGB blend dest term */
-      GLenum SrcA;               /**< Alpha blend source term */
-      GLenum DstA;               /**< Alpha blend dest term */
-      GLenum EquationRGB;        /**< GL_ADD, GL_SUBTRACT, etc. */
-      GLenum EquationA;          /**< GL_ADD, GL_SUBTRACT, etc. */
-   } Blend[MAX_DRAW_BUFFERS];
-   /** Are the blend func terms currently different for each buffer/target? */
-   GLboolean _BlendFuncPerBuffer;
-   /** Are the blend equations currently different for each buffer/target? */
-   GLboolean _BlendEquationPerBuffer;
-   /*@}*/
-
-   /** 
-    * \name Logic op
-    */
-   /*@{*/
-   GLenum LogicOp;			/**< Logic operator */
-   GLboolean IndexLogicOpEnabled;	/**< Color index logic op enabled flag */
-   GLboolean ColorLogicOpEnabled;	/**< RGBA logic op enabled flag */
-   GLboolean _LogicOpEnabled;		/**< RGBA logic op + EXT_blend_logic_op enabled flag */
-   /*@}*/
-
-   GLboolean DitherFlag;		/**< Dither enable flag */
-
-   GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
-   GLenum ClampReadColor;     /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
-
-   GLboolean sRGBEnabled;	/**< Framebuffer sRGB blending/updating requested */
-};
-
-
-/**
- * Current attribute group (GL_CURRENT_BIT).
- */
-struct gl_current_attrib
-{
-   /**
-    * \name Current vertex attributes.
-    * \note Values are valid only after FLUSH_VERTICES has been called.
-    * \note Index and Edgeflag current values are stored as floats in the 
-    * SIX and SEVEN attribute slots.
-    */
-   GLfloat Attrib[VERT_ATTRIB_MAX][4];	/**< Position, color, texcoords, etc */
-
-   /**
-    * \name Current raster position attributes (always valid).
-    * \note This set of attributes is very similar to the SWvertex struct.
-    */
-   /*@{*/
-   GLfloat RasterPos[4];
-   GLfloat RasterDistance;
-   GLfloat RasterColor[4];
-   GLfloat RasterSecondaryColor[4];
-   GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4];
-   GLboolean RasterPosValid;
-   /*@}*/
-};
-
-
-/**
- * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
- */
-struct gl_depthbuffer_attrib
-{
-   GLenum Func;			/**< Function for depth buffer compare */
-   GLclampd Clear;		/**< Value to clear depth buffer to */
-   GLboolean Test;		/**< Depth buffering enabled flag */
-   GLboolean Mask;		/**< Depth buffer writable? */
-   GLboolean BoundsTest;        /**< GL_EXT_depth_bounds_test */
-   GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */
-};
-
-
-/**
- * Evaluator attribute group (GL_EVAL_BIT).
- */
-struct gl_eval_attrib
-{
-   /**
-    * \name Enable bits 
-    */
-   /*@{*/
-   GLboolean Map1Color4;
-   GLboolean Map1Index;
-   GLboolean Map1Normal;
-   GLboolean Map1TextureCoord1;
-   GLboolean Map1TextureCoord2;
-   GLboolean Map1TextureCoord3;
-   GLboolean Map1TextureCoord4;
-   GLboolean Map1Vertex3;
-   GLboolean Map1Vertex4;
-   GLboolean Map1Attrib[16];  /* GL_NV_vertex_program */
-   GLboolean Map2Color4;
-   GLboolean Map2Index;
-   GLboolean Map2Normal;
-   GLboolean Map2TextureCoord1;
-   GLboolean Map2TextureCoord2;
-   GLboolean Map2TextureCoord3;
-   GLboolean Map2TextureCoord4;
-   GLboolean Map2Vertex3;
-   GLboolean Map2Vertex4;
-   GLboolean Map2Attrib[16];  /* GL_NV_vertex_program */
-   GLboolean AutoNormal;
-   /*@}*/
-   
-   /**
-    * \name Map Grid endpoints and divisions and calculated du values
-    */
-   /*@{*/
-   GLint MapGrid1un;
-   GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du;
-   GLint MapGrid2un, MapGrid2vn;
-   GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du;
-   GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv;
-   /*@}*/
-};
-
-
-/**
- * Fog attribute group (GL_FOG_BIT).
- */
-struct gl_fog_attrib
-{
-   GLboolean Enabled;		/**< Fog enabled flag */
-   GLfloat Color[4];		/**< Fog color */
-   GLfloat Density;		/**< Density >= 0.0 */
-   GLfloat Start;		/**< Start distance in eye coords */
-   GLfloat End;			/**< End distance in eye coords */
-   GLfloat Index;		/**< Fog index */
-   GLenum Mode;			/**< Fog mode */
-   GLboolean ColorSumEnabled;
-   GLenum FogCoordinateSource;  /**< GL_EXT_fog_coord */
-   GLfloat _Scale;		/**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
-};
-
-
-/**
- * \brief Layout qualifiers for gl_FragDepth.
- *
- * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with
- * a layout qualifier.
- *
- * \see enum ir_depth_layout
- */
-enum gl_frag_depth_layout {
-    FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */
-    FRAG_DEPTH_LAYOUT_ANY,
-    FRAG_DEPTH_LAYOUT_GREATER,
-    FRAG_DEPTH_LAYOUT_LESS,
-    FRAG_DEPTH_LAYOUT_UNCHANGED
-};
-
-
-/** 
- * Hint attribute group (GL_HINT_BIT).
- * 
- * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
- */
-struct gl_hint_attrib
-{
-   GLenum PerspectiveCorrection;
-   GLenum PointSmooth;
-   GLenum LineSmooth;
-   GLenum PolygonSmooth;
-   GLenum Fog;
-   GLenum ClipVolumeClipping;   /**< GL_EXT_clip_volume_hint */
-   GLenum TextureCompression;   /**< GL_ARB_texture_compression */
-   GLenum GenerateMipmap;       /**< GL_SGIS_generate_mipmap */
-   GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */
-};
-
-/**
- * Light state flags.
- */
-/*@{*/
-#define LIGHT_SPOT         0x1
-#define LIGHT_LOCAL_VIEWER 0x2
-#define LIGHT_POSITIONAL   0x4
-#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
-/*@}*/
-
-
-/**
- * Lighting attribute group (GL_LIGHT_BIT).
- */
-struct gl_light_attrib
-{
-   struct gl_light Light[MAX_LIGHTS];	/**< Array of light sources */
-   struct gl_lightmodel Model;		/**< Lighting model */
-
-   /**
-    * Must flush FLUSH_VERTICES before referencing:
-    */
-   /*@{*/
-   struct gl_material Material; 	/**< Includes front & back values */
-   /*@}*/
-
-   GLboolean Enabled;			/**< Lighting enabled flag */
-   GLenum ShadeModel;			/**< GL_FLAT or GL_SMOOTH */
-   GLenum ProvokingVertex;              /**< GL_EXT_provoking_vertex */
-   GLenum ColorMaterialFace;		/**< GL_FRONT, BACK or FRONT_AND_BACK */
-   GLenum ColorMaterialMode;		/**< GL_AMBIENT, GL_DIFFUSE, etc */
-   GLbitfield ColorMaterialBitmask;	/**< bitmask formed from Face and Mode */
-   GLboolean ColorMaterialEnabled;
-   GLenum ClampVertexColor;
-
-   struct gl_light EnabledList;         /**< List sentinel */
-
-   /** 
-    * Derived state for optimizations: 
-    */
-   /*@{*/
-   GLboolean _NeedEyeCoords;		
-   GLboolean _NeedVertices;		/**< Use fast shader? */
-   GLbitfield _Flags;		        /**< LIGHT_* flags, see above */
-   GLfloat _BaseColor[2][3];
-   /*@}*/
-};
-
-
-/**
- * Line attribute group (GL_LINE_BIT).
- */
-struct gl_line_attrib
-{
-   GLboolean SmoothFlag;	/**< GL_LINE_SMOOTH enabled? */
-   GLboolean StippleFlag;	/**< GL_LINE_STIPPLE enabled? */
-   GLushort StipplePattern;	/**< Stipple pattern */
-   GLint StippleFactor;		/**< Stipple repeat factor */
-   GLfloat Width;		/**< Line width */
-};
-
-
-/**
- * Display list attribute group (GL_LIST_BIT).
- */
-struct gl_list_attrib
-{
-   GLuint ListBase;
-};
-
-
-/**
- * Multisample attribute group (GL_MULTISAMPLE_BIT).
- */
-struct gl_multisample_attrib
-{
-   GLboolean Enabled;
-   GLboolean _Enabled;   /**< true if Enabled and multisample buffer */
-   GLboolean SampleAlphaToCoverage;
-   GLboolean SampleAlphaToOne;
-   GLboolean SampleCoverage;
-   GLfloat SampleCoverageValue;
-   GLboolean SampleCoverageInvert;
-};
-
-
-/**
- * A pixelmap (see glPixelMap)
- */
-struct gl_pixelmap
-{
-   GLint Size;
-   GLfloat Map[MAX_PIXEL_MAP_TABLE];
-   GLubyte Map8[MAX_PIXEL_MAP_TABLE];  /**< converted to 8-bit color */
-};
-
-
-/**
- * Collection of all pixelmaps
- */
-struct gl_pixelmaps
-{
-   struct gl_pixelmap RtoR;  /**< i.e. GL_PIXEL_MAP_R_TO_R */
-   struct gl_pixelmap GtoG;
-   struct gl_pixelmap BtoB;
-   struct gl_pixelmap AtoA;
-   struct gl_pixelmap ItoR;
-   struct gl_pixelmap ItoG;
-   struct gl_pixelmap ItoB;
-   struct gl_pixelmap ItoA;
-   struct gl_pixelmap ItoI;
-   struct gl_pixelmap StoS;
-};
-
-
-/**
- * Pixel attribute group (GL_PIXEL_MODE_BIT).
- */
-struct gl_pixel_attrib
-{
-   GLenum ReadBuffer;		/**< source buffer for glRead/CopyPixels() */
-
-   /*--- Begin Pixel Transfer State ---*/
-   /* Fields are in the order in which they're applied... */
-
-   /** Scale & Bias (index shift, offset) */
-   /*@{*/
-   GLfloat RedBias, RedScale;
-   GLfloat GreenBias, GreenScale;
-   GLfloat BlueBias, BlueScale;
-   GLfloat AlphaBias, AlphaScale;
-   GLfloat DepthBias, DepthScale;
-   GLint IndexShift, IndexOffset;
-   /*@}*/
-
-   /* Pixel Maps */
-   /* Note: actual pixel maps are not part of this attrib group */
-   GLboolean MapColorFlag;
-   GLboolean MapStencilFlag;
-
-   /*--- End Pixel Transfer State ---*/
-
-   /** glPixelZoom */
-   GLfloat ZoomX, ZoomY;
-
-   /** GL_SGI_texture_color_table */
-   GLfloat TextureColorTableScale[4]; /**< RGBA */
-   GLfloat TextureColorTableBias[4];  /**< RGBA */
-};
-
-
-/**
- * Point attribute group (GL_POINT_BIT).
- */
-struct gl_point_attrib
-{
-   GLboolean SmoothFlag;	/**< True if GL_POINT_SMOOTH is enabled */
-   GLfloat Size;		/**< User-specified point size */
-   GLfloat Params[3];		/**< GL_EXT_point_parameters */
-   GLfloat MinSize, MaxSize;	/**< GL_EXT_point_parameters */
-   GLfloat Threshold;		/**< GL_EXT_point_parameters */
-   GLboolean _Attenuated;	/**< True if Params != [1, 0, 0] */
-   GLboolean PointSprite;	/**< GL_NV/ARB_point_sprite */
-   GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/
-   GLenum SpriteRMode;		/**< GL_NV_point_sprite (only!) */
-   GLenum SpriteOrigin;		/**< GL_ARB_point_sprite */
-};
-
-
-/**
- * Polygon attribute group (GL_POLYGON_BIT).
- */
-struct gl_polygon_attrib
-{
-   GLenum FrontFace;		/**< Either GL_CW or GL_CCW */
-   GLenum FrontMode;		/**< Either GL_POINT, GL_LINE or GL_FILL */
-   GLenum BackMode;		/**< Either GL_POINT, GL_LINE or GL_FILL */
-   GLboolean _FrontBit;		/**< 0=GL_CCW, 1=GL_CW */
-   GLboolean CullFlag;		/**< Culling on/off flag */
-   GLboolean SmoothFlag;	/**< True if GL_POLYGON_SMOOTH is enabled */
-   GLboolean StippleFlag;	/**< True if GL_POLYGON_STIPPLE is enabled */
-   GLenum CullFaceMode;		/**< Culling mode GL_FRONT or GL_BACK */
-   GLfloat OffsetFactor;	/**< Polygon offset factor, from user */
-   GLfloat OffsetUnits;		/**< Polygon offset units, from user */
-   GLboolean OffsetPoint;	/**< Offset in GL_POINT mode */
-   GLboolean OffsetLine;	/**< Offset in GL_LINE mode */
-   GLboolean OffsetFill;	/**< Offset in GL_FILL mode */
-};
-
-
-/**
- * Scissor attributes (GL_SCISSOR_BIT).
- */
-struct gl_scissor_attrib
-{
-   GLboolean Enabled;		/**< Scissor test enabled? */
-   GLint X, Y;			/**< Lower left corner of box */
-   GLsizei Width, Height;	/**< Size of box */
-};
-
-
-/**
- * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
- *
- * Three sets of stencil data are tracked so that OpenGL 2.0,
- * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
- * simultaneously.  In each of the stencil state arrays, element 0 corresponds
- * to GL_FRONT.  Element 1 corresponds to the OpenGL 2.0 /
- * GL_ATI_separate_stencil GL_BACK state.  Element 2 corresponds to the
- * GL_EXT_stencil_two_side GL_BACK state.
- *
- * The derived value \c _BackFace is either 1 or 2 depending on whether or
- * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
- *
- * The derived value \c _TestTwoSide is set when the front-face and back-face
- * stencil state are different.
- */
-struct gl_stencil_attrib
-{
-   GLboolean Enabled;		/**< Enabled flag */
-   GLboolean TestTwoSide;	/**< GL_EXT_stencil_two_side */
-   GLubyte ActiveFace;		/**< GL_EXT_stencil_two_side (0 or 2) */
-   GLboolean _Enabled;          /**< Enabled and stencil buffer present */
-   GLboolean _TestTwoSide;
-   GLubyte _BackFace;           /**< Current back stencil state (1 or 2) */
-   GLenum Function[3];		/**< Stencil function */
-   GLenum FailFunc[3];		/**< Fail function */
-   GLenum ZPassFunc[3];		/**< Depth buffer pass function */
-   GLenum ZFailFunc[3];		/**< Depth buffer fail function */
-   GLint Ref[3];		/**< Reference value */
-   GLuint ValueMask[3];		/**< Value mask */
-   GLuint WriteMask[3];		/**< Write mask */
-   GLuint Clear;		/**< Clear value */
-};
-
-
-/**
- * An index for each type of texture object.  These correspond to the GL
- * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
- * Note: the order is from highest priority to lowest priority.
- */
-typedef enum
-{
-   TEXTURE_2D_ARRAY_INDEX,
-   TEXTURE_1D_ARRAY_INDEX,
-   TEXTURE_CUBE_INDEX,
-   TEXTURE_3D_INDEX,
-   TEXTURE_RECT_INDEX,
-   TEXTURE_2D_INDEX,
-   TEXTURE_1D_INDEX,
-   NUM_TEXTURE_TARGETS
-} gl_texture_index;
-
-
-/**
- * Bit flags for each type of texture object
- * Used for Texture.Unit[]._ReallyEnabled flags.
- */
-/*@{*/
-#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
-#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
-#define TEXTURE_CUBE_BIT     (1 << TEXTURE_CUBE_INDEX)
-#define TEXTURE_3D_BIT       (1 << TEXTURE_3D_INDEX)
-#define TEXTURE_RECT_BIT     (1 << TEXTURE_RECT_INDEX)
-#define TEXTURE_2D_BIT       (1 << TEXTURE_2D_INDEX)
-#define TEXTURE_1D_BIT       (1 << TEXTURE_1D_INDEX)
-/*@}*/
-
-
-/**
- * TexGenEnabled flags.
- */
-/*@{*/
-#define S_BIT 1
-#define T_BIT 2
-#define R_BIT 4
-#define Q_BIT 8
-#define STR_BITS (S_BIT | T_BIT | R_BIT)
-/*@}*/
-
-
-/**
- * Bit flag versions of the corresponding GL_ constants.
- */
-/*@{*/
-#define TEXGEN_SPHERE_MAP        0x1
-#define TEXGEN_OBJ_LINEAR        0x2
-#define TEXGEN_EYE_LINEAR        0x4
-#define TEXGEN_REFLECTION_MAP_NV 0x8
-#define TEXGEN_NORMAL_MAP_NV     0x10
-
-#define TEXGEN_NEED_NORMALS      (TEXGEN_SPHERE_MAP        | \
-				  TEXGEN_REFLECTION_MAP_NV | \
-				  TEXGEN_NORMAL_MAP_NV)
-#define TEXGEN_NEED_EYE_COORD    (TEXGEN_SPHERE_MAP        | \
-				  TEXGEN_REFLECTION_MAP_NV | \
-				  TEXGEN_NORMAL_MAP_NV     | \
-				  TEXGEN_EYE_LINEAR)
-/*@}*/
-
-
-
-/** Tex-gen enabled for texture unit? */
-#define ENABLE_TEXGEN(unit) (1 << (unit))
-
-/** Non-identity texture matrix for texture unit? */
-#define ENABLE_TEXMAT(unit) (1 << (unit))
-
-
-/**
- * Texel fetch function prototype.  We use texel fetch functions to
- * extract RGBA, color indexes and depth components out of 1D, 2D and 3D
- * texture images.  These functions help to isolate us from the gritty
- * details of all the various texture image encodings.
- * 
- * \param texImage texture image.
- * \param col texel column.
- * \param row texel row.
- * \param img texel image level/layer.
- * \param texelOut output texel (up to 4 GLchans)
- */
-typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage,
-                                 GLint col, GLint row, GLint img,
-                                 GLchan *texelOut );
-
-/**
- * As above, but returns floats.
- * Used for depth component images and for upcoming signed/float
- * texture images.
- */
-typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage,
-                                 GLint col, GLint row, GLint img,
-                                 GLfloat *texelOut );
-
-
-typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage,
-                               GLint col, GLint row, GLint img,
-                               const void *texel);
-
-
-/**
- * Texture image state.  Describes the dimensions of a texture image,
- * the texel format and pointers to Texel Fetch functions.
- */
-struct gl_texture_image
-{
-   GLint InternalFormat;	/**< Internal format as given by the user */
-   GLenum _BaseFormat;		/**< Either GL_RGB, GL_RGBA, GL_ALPHA,
-				 *   GL_LUMINANCE, GL_LUMINANCE_ALPHA,
-				 *   GL_INTENSITY, GL_COLOR_INDEX,
-				 *   GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT
-                                 *   only. Used for choosing TexEnv arithmetic.
-				 */
-   gl_format TexFormat;         /**< The actual texture memory format */
-
-   GLuint Border;		/**< 0 or 1 */
-   GLuint Width;		/**< = 2^WidthLog2 + 2*Border */
-   GLuint Height;		/**< = 2^HeightLog2 + 2*Border */
-   GLuint Depth;		/**< = 2^DepthLog2 + 2*Border */
-   GLuint Width2;		/**< = Width - 2*Border */
-   GLuint Height2;		/**< = Height - 2*Border */
-   GLuint Depth2;		/**< = Depth - 2*Border */
-   GLuint WidthLog2;		/**< = log2(Width2) */
-   GLuint HeightLog2;		/**< = log2(Height2) */
-   GLuint DepthLog2;		/**< = log2(Depth2) */
-   GLuint MaxLog2;		/**< = MAX(WidthLog2, HeightLog2) */
-   GLfloat WidthScale;		/**< used for mipmap LOD computation */
-   GLfloat HeightScale;		/**< used for mipmap LOD computation */
-   GLfloat DepthScale;		/**< used for mipmap LOD computation */
-   GLboolean IsClientData;	/**< Data owned by client? */
-   GLboolean _IsPowerOfTwo;	/**< Are all dimensions powers of two? */
-
-   struct gl_texture_object *TexObject;  /**< Pointer back to parent object */
-
-   FetchTexelFuncC FetchTexelc;	/**< GLchan texel fetch function pointer */
-   FetchTexelFuncF FetchTexelf;	/**< Float texel fetch function pointer */
-
-   GLuint RowStride;		/**< Padded width in units of texels */
-   GLuint *ImageOffsets;        /**< if 3D texture: array [Depth] of offsets to
-                                     each 2D slice in 'Data', in texels */
-   GLvoid *Data;		/**< Image data, accessed via FetchTexel() */
-
-   /**
-    * \name For device driver:
-    */
-   /*@{*/
-   void *DriverData;		/**< Arbitrary device driver data */
-   /*@}*/
-};
-
-
-/**
- * Indexes for cube map faces.
- */
-typedef enum
-{
-   FACE_POS_X = 0,
-   FACE_NEG_X = 1,
-   FACE_POS_Y = 2,
-   FACE_NEG_Y = 3,
-   FACE_POS_Z = 4,
-   FACE_NEG_Z = 5,
-   MAX_FACES = 6
-} gl_face_index;
-
-
-/**
- * Texture object state.  Contains the array of mipmap images, border color,
- * wrap modes, filter modes, shadow/texcompare state, and the per-texture
- * color palette.
- */
-struct gl_texture_object
-{
-   _glthread_Mutex Mutex;	/**< for thread safety */
-   GLint RefCount;		/**< reference count */
-   GLuint Name;			/**< the user-visible texture object ID */
-   GLenum Target;               /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
-   GLfloat Priority;		/**< in [0,1] */
-   union {
-      GLfloat f[4];
-      GLuint ui[4];
-      GLint i[4];
-   } BorderColor;               /**< Interpreted according to texture format */
-   GLenum WrapS;		/**< S-axis texture image wrap mode */
-   GLenum WrapT;		/**< T-axis texture image wrap mode */
-   GLenum WrapR;		/**< R-axis texture image wrap mode */
-   GLenum MinFilter;		/**< minification filter */
-   GLenum MagFilter;		/**< magnification filter */
-   GLfloat MinLod;		/**< min lambda, OpenGL 1.2 */
-   GLfloat MaxLod;		/**< max lambda, OpenGL 1.2 */
-   GLfloat LodBias;		/**< OpenGL 1.4 */
-   GLint BaseLevel;		/**< min mipmap level, OpenGL 1.2 */
-   GLint MaxLevel;		/**< max mipmap level, OpenGL 1.2 */
-   GLfloat MaxAnisotropy;	/**< GL_EXT_texture_filter_anisotropic */
-   GLenum CompareMode;		/**< GL_ARB_shadow */
-   GLenum CompareFunc;		/**< GL_ARB_shadow */
-   GLfloat CompareFailValue;    /**< GL_ARB_shadow_ambient */
-   GLenum DepthMode;		/**< GL_ARB_depth_texture */
-   GLint _MaxLevel;		/**< actual max mipmap level (q in the spec) */
-   GLfloat _MaxLambda;		/**< = _MaxLevel - BaseLevel (q - b in spec) */
-   GLint CropRect[4];           /**< GL_OES_draw_texture */
-   GLenum Swizzle[4];           /**< GL_EXT_texture_swizzle */
-   GLuint _Swizzle;             /**< same as Swizzle, but SWIZZLE_* format */
-   GLboolean GenerateMipmap;    /**< GL_SGIS_generate_mipmap */
-   GLboolean _Complete;		/**< Is texture object complete? */
-   GLboolean _RenderToTexture;  /**< Any rendering to this texture? */
-   GLboolean Purgeable;         /**< Is the buffer purgeable under memory pressure? */
-   GLenum sRGBDecode;           /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
-
-   /** Actual texture images, indexed by [cube face] and [mipmap level] */
-   struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS];
-
-   /** GL_EXT_paletted_texture */
-   struct gl_color_table Palette;
-
-   /**
-    * \name For device driver.
-    * Note: instead of attaching driver data to this pointer, it's preferable
-    * to instead use this struct as a base class for your own texture object
-    * class.  Driver->NewTextureObject() can be used to implement the
-    * allocation.
-    */
-   void *DriverData;	/**< Arbitrary device driver data */
-};
-
-
-/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
-#define MAX_COMBINER_TERMS 4
-
-
-/**
- * Texture combine environment state.
- */
-struct gl_tex_env_combine_state
-{
-   GLenum ModeRGB;       /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
-   GLenum ModeA;         /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
-   /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
-   GLenum SourceRGB[MAX_COMBINER_TERMS];
-   GLenum SourceA[MAX_COMBINER_TERMS];
-   /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
-   GLenum OperandRGB[MAX_COMBINER_TERMS];
-   GLenum OperandA[MAX_COMBINER_TERMS];
-   GLuint ScaleShiftRGB; /**< 0, 1 or 2 */
-   GLuint ScaleShiftA;   /**< 0, 1 or 2 */
-   GLuint _NumArgsRGB;   /**< Number of inputs used for the RGB combiner */
-   GLuint _NumArgsA;     /**< Number of inputs used for the A combiner */
-};
-
-
-/**
- * Texture coord generation state.
- */
-struct gl_texgen
-{
-   GLenum Mode;         /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
-   GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */
-   GLfloat ObjectPlane[4];
-   GLfloat EyePlane[4];
-};
-
-
-/**
- * Texture unit state.  Contains enable flags, texture environment/function/
- * combiners, texgen state, pointers to current texture objects and
- * post-filter color tables.
- */
-struct gl_texture_unit
-{
-   GLbitfield Enabled;          /**< bitmask of TEXTURE_*_BIT flags */
-   GLbitfield _ReallyEnabled;   /**< 0 or exactly one of TEXTURE_*_BIT flags */
-
-   GLenum EnvMode;              /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
-   GLfloat EnvColor[4];
-
-   struct gl_texgen GenS;
-   struct gl_texgen GenT;
-   struct gl_texgen GenR;
-   struct gl_texgen GenQ;
-   GLbitfield TexGenEnabled;	/**< Bitwise-OR of [STRQ]_BIT values */
-   GLbitfield _GenFlags;	/**< Bitwise-OR of Gen[STRQ]._ModeBit */
-
-   GLfloat LodBias;		/**< for biasing mipmap levels */
-   GLenum BumpTarget;
-   GLfloat RotMatrix[4]; /* 2x2 matrix */
-
-   /** 
-    * \name GL_EXT_texture_env_combine 
-    */
-   struct gl_tex_env_combine_state Combine;
-
-   /**
-    * Derived state based on \c EnvMode and the \c BaseFormat of the
-    * currently enabled texture.
-    */
-   struct gl_tex_env_combine_state _EnvMode;
-
-   /**
-    * Currently enabled combiner state.  This will point to either
-    * \c Combine or \c _EnvMode.
-    */
-   struct gl_tex_env_combine_state *_CurrentCombine;
-
-   /** Current texture object pointers */
-   struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS];
-
-   /** Points to highest priority, complete and enabled texture object */
-   struct gl_texture_object *_Current;
-
-   /** GL_SGI_texture_color_table */
-   /*@{*/
-   struct gl_color_table ColorTable;
-   struct gl_color_table ProxyColorTable;
-   GLboolean ColorTableEnabled;
-   /*@}*/
-};
-
-
-/**
- * Texture attribute group (GL_TEXTURE_BIT).
- */
-struct gl_texture_attrib
-{
-   GLuint CurrentUnit;   /**< GL_ACTIVE_TEXTURE */
-   struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS];
-
-   struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS];
-
-   /** GL_ARB_seamless_cubemap */
-   GLboolean CubeMapSeamless;
-
-   /** GL_EXT_shared_texture_palette */
-   GLboolean SharedPalette;
-   struct gl_color_table Palette;
-
-   /** Texture units/samplers used by vertex or fragment texturing */
-   GLbitfield _EnabledUnits;
-
-   /** Texture coord units/sets used for fragment texturing */
-   GLbitfield _EnabledCoordUnits;
-
-   /** Texture coord units that have texgen enabled */
-   GLbitfield _TexGenEnabled;
-
-   /** Texture coord units that have non-identity matrices */
-   GLbitfield _TexMatEnabled;
-
-   /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
-   GLbitfield _GenFlags;
-};
-
-
-/**
- * Transformation attribute group (GL_TRANSFORM_BIT).
- */
-struct gl_transform_attrib
-{
-   GLenum MatrixMode;				/**< Matrix mode */
-   GLfloat EyeUserPlane[MAX_CLIP_PLANES][4];	/**< User clip planes */
-   GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4];	/**< derived */
-   GLbitfield ClipPlanesEnabled;                /**< on/off bitmask */
-   GLboolean Normalize;				/**< Normalize all normals? */
-   GLboolean RescaleNormals;			/**< GL_EXT_rescale_normal */
-   GLboolean RasterPositionUnclipped;           /**< GL_IBM_rasterpos_clip */
-   GLboolean DepthClamp;			/**< GL_ARB_depth_clamp */
-
-   GLfloat CullEyePos[4];
-   GLfloat CullObjPos[4];
-};
-
-
-/**
- * Viewport attribute group (GL_VIEWPORT_BIT).
- */
-struct gl_viewport_attrib
-{
-   GLint X, Y;			/**< position */
-   GLsizei Width, Height;	/**< size */
-   GLfloat Near, Far;		/**< Depth buffer range */
-   GLmatrix _WindowMap;		/**< Mapping transformation as a matrix. */
-};
-
-
-/**
- * GL_ARB_vertex/pixel_buffer_object buffer object
- */
-struct gl_buffer_object
-{
-   _glthread_Mutex Mutex;
-   GLint RefCount;
-   GLuint Name;
-   GLenum Usage;        /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
-   GLsizeiptrARB Size;  /**< Size of buffer storage in bytes */
-   GLubyte *Data;       /**< Location of storage either in RAM or VRAM. */
-   /** Fields describing a mapped buffer */
-   /*@{*/
-   GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */
-   GLvoid *Pointer;     /**< User-space address of mapping */
-   GLintptr Offset;     /**< Mapped offset */
-   GLsizeiptr Length;   /**< Mapped length */
-   /*@}*/
-   GLboolean Written;   /**< Ever written to? (for debugging) */
-   GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
-};
-
-
-/**
- * Client pixel packing/unpacking attributes
- */
-struct gl_pixelstore_attrib
-{
-   GLint Alignment;
-   GLint RowLength;
-   GLint SkipPixels;
-   GLint SkipRows;
-   GLint ImageHeight;
-   GLint SkipImages;
-   GLboolean SwapBytes;
-   GLboolean LsbFirst;
-   GLboolean ClientStorage; /**< GL_APPLE_client_storage */
-   GLboolean Invert;        /**< GL_MESA_pack_invert */
-   struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */
-};
-
-
-/**
- * Client vertex array attributes
- */
-struct gl_client_array
-{
-   GLint Size;                  /**< components per element (1,2,3,4) */
-   GLenum Type;                 /**< datatype: GL_FLOAT, GL_INT, etc */
-   GLenum Format;               /**< default: GL_RGBA, but may be GL_BGRA */
-   GLsizei Stride;		/**< user-specified stride */
-   GLsizei StrideB;		/**< actual stride in bytes */
-   const GLubyte *Ptr;          /**< Points to array data */
-   GLboolean Enabled;		/**< Enabled flag is a boolean */
-   GLboolean Normalized;        /**< GL_ARB_vertex_program */
-   GLboolean Integer;           /**< Integer-valued? */
-   GLuint InstanceDivisor;      /**< GL_ARB_instanced_arrays */
-   GLuint _ElementSize;         /**< size of each element in bytes */
-
-   struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */
-   GLuint _MaxElement;          /**< max element index into array buffer + 1 */
-};
-
-
-/**
- * Collection of vertex arrays.  Defined by the GL_APPLE_vertex_array_object
- * extension, but a nice encapsulation in any case.
- */
-struct gl_array_object
-{
-   /** Name of the array object as received from glGenVertexArrayAPPLE. */
-   GLuint Name;
-
-   GLint RefCount;
-   _glthread_Mutex Mutex;
-   GLboolean VBOonly;  /**< require all arrays to live in VBOs? */
-
-   /** Conventional vertex arrays */
-   /*@{*/
-   struct gl_client_array Vertex;
-   struct gl_client_array Weight;
-   struct gl_client_array Normal;
-   struct gl_client_array Color;
-   struct gl_client_array SecondaryColor;
-   struct gl_client_array FogCoord;
-   struct gl_client_array Index;
-   struct gl_client_array EdgeFlag;
-   struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS];
-   struct gl_client_array PointSize;
-   /*@}*/
-
-   /**
-    * Generic arrays for vertex programs/shaders.
-    * For NV vertex programs, these attributes alias and take priority
-    * over the conventional attribs above.  For ARB vertex programs and
-    * GLSL vertex shaders, these attributes are separate.
-    */
-   struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS];
-
-   /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */
-   GLbitfield _Enabled;
-
-   /**
-    * Min of all enabled arrays' _MaxElement.  When arrays reside inside VBOs
-    * we can determine the max legal (in bounds) glDrawElements array index.
-    */
-   GLuint _MaxElement;
-};
-
-
-/**
- * Vertex array state
- */
-struct gl_array_attrib
-{
-   /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
-   struct gl_array_object *ArrayObj;
-
-   /** The default vertex array object */
-   struct gl_array_object *DefaultArrayObj;
-
-   /** Array objects (GL_ARB/APPLE_vertex_array_object) */
-   struct _mesa_HashTable *Objects;
-
-   GLint ActiveTexture;		/**< Client Active Texture */
-   GLuint LockFirst;            /**< GL_EXT_compiled_vertex_array */
-   GLuint LockCount;            /**< GL_EXT_compiled_vertex_array */
-
-   /** GL 3.1 (slightly different from GL_NV_primitive_restart) */
-   GLboolean PrimitiveRestart;
-   GLuint RestartIndex;
-
-   GLbitfield NewState;		/**< mask of _NEW_ARRAY_* values */
-   GLboolean RebindArrays; /**< whether the VBO module should rebind arrays */
-
-   /* GL_ARB_vertex_buffer_object */
-   struct gl_buffer_object *ArrayBufferObj;
-   struct gl_buffer_object *ElementArrayBufferObj;
-};
-
-
-/**
- * Feedback buffer state
- */
-struct gl_feedback
-{
-   GLenum Type;
-   GLbitfield _Mask;    /**< FB_* bits */
-   GLfloat *Buffer;
-   GLuint BufferSize;
-   GLuint Count;
-};
-
-
-/**
- * Selection buffer state
- */
-struct gl_selection
-{
-   GLuint *Buffer;	/**< selection buffer */
-   GLuint BufferSize;	/**< size of the selection buffer */
-   GLuint BufferCount;	/**< number of values in the selection buffer */
-   GLuint Hits;		/**< number of records in the selection buffer */
-   GLuint NameStackDepth; /**< name stack depth */
-   GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */
-   GLboolean HitFlag;	/**< hit flag */
-   GLfloat HitMinZ;	/**< minimum hit depth */
-   GLfloat HitMaxZ;	/**< maximum hit depth */
-};
-
-
-/**
- * 1-D Evaluator control points
- */
-struct gl_1d_map
-{
-   GLuint Order;	/**< Number of control points */
-   GLfloat u1, u2, du;	/**< u1, u2, 1.0/(u2-u1) */
-   GLfloat *Points;	/**< Points to contiguous control points */
-};
-
-
-/**
- * 2-D Evaluator control points
- */
-struct gl_2d_map
-{
-   GLuint Uorder;		/**< Number of control points in U dimension */
-   GLuint Vorder;		/**< Number of control points in V dimension */
-   GLfloat u1, u2, du;
-   GLfloat v1, v2, dv;
-   GLfloat *Points;		/**< Points to contiguous control points */
-};
-
-
-/**
- * All evaluator control point state
- */
-struct gl_evaluators
-{
-   /** 
-    * \name 1-D maps
-    */
-   /*@{*/
-   struct gl_1d_map Map1Vertex3;
-   struct gl_1d_map Map1Vertex4;
-   struct gl_1d_map Map1Index;
-   struct gl_1d_map Map1Color4;
-   struct gl_1d_map Map1Normal;
-   struct gl_1d_map Map1Texture1;
-   struct gl_1d_map Map1Texture2;
-   struct gl_1d_map Map1Texture3;
-   struct gl_1d_map Map1Texture4;
-   struct gl_1d_map Map1Attrib[16];  /**< GL_NV_vertex_program */
-   /*@}*/
-
-   /** 
-    * \name 2-D maps 
-    */
-   /*@{*/
-   struct gl_2d_map Map2Vertex3;
-   struct gl_2d_map Map2Vertex4;
-   struct gl_2d_map Map2Index;
-   struct gl_2d_map Map2Color4;
-   struct gl_2d_map Map2Normal;
-   struct gl_2d_map Map2Texture1;
-   struct gl_2d_map Map2Texture2;
-   struct gl_2d_map Map2Texture3;
-   struct gl_2d_map Map2Texture4;
-   struct gl_2d_map Map2Attrib[16];  /**< GL_NV_vertex_program */
-   /*@}*/
-};
-
-
-/**
- * Names of the various vertex/fragment program register files, etc.
- *
- * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
- * All values should fit in a 4-bit field.
- *
- * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM,
- * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
- * be "uniform" variables since they can only be set outside glBegin/End.
- * They're also all stored in the same Parameters array.
- */
-typedef enum
-{
-   PROGRAM_TEMPORARY,   /**< machine->Temporary[] */
-   PROGRAM_INPUT,       /**< machine->Inputs[] */
-   PROGRAM_OUTPUT,      /**< machine->Outputs[] */
-   PROGRAM_VARYING,     /**< machine->Inputs[]/Outputs[] */
-   PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */
-   PROGRAM_ENV_PARAM,   /**< gl_program->Parameters[] */
-   PROGRAM_STATE_VAR,   /**< gl_program->Parameters[] */
-   PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */
-   PROGRAM_CONSTANT,    /**< gl_program->Parameters[] */
-   PROGRAM_UNIFORM,     /**< gl_program->Parameters[] */
-   PROGRAM_WRITE_ONLY,  /**< A dummy, write-only register */
-   PROGRAM_ADDRESS,     /**< machine->AddressReg */
-   PROGRAM_SAMPLER,     /**< for shader samplers, compile-time only */
-   PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */
-   PROGRAM_UNDEFINED,   /**< Invalid/TBD value */
-   PROGRAM_FILE_MAX
-} gl_register_file;
-
-
-/**
- * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be
- * one of these values.
- */
-typedef enum
-{
-   SYSTEM_VALUE_FRONT_FACE,  /**< Fragment shader only (not done yet) */
-   SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */
-   SYSTEM_VALUE_MAX          /**< Number of values */
-} gl_system_value;
-
-
-/** Vertex and fragment instructions */
-struct prog_instruction;
-struct gl_program_parameter_list;
-struct gl_uniform_list;
-
-
-/**
- * Base class for any kind of program object
- */
-struct gl_program
-{
-   GLuint Id;
-   GLubyte *String;  /**< Null-terminated program text */
-   GLint RefCount;
-   GLenum Target;    /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */
-   GLenum Format;    /**< String encoding format */
-   GLboolean Resident;
-
-   struct prog_instruction *Instructions;
-
-   GLbitfield InputsRead;     /**< Bitmask of which input regs are read */
-   GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */
-   GLbitfield SystemValuesRead;   /**< Bitmask of SYSTEM_VALUE_x inputs used */
-   GLbitfield InputFlags[MAX_PROGRAM_INPUTS];   /**< PROG_PARAM_BIT_x flags */
-   GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */
-   GLbitfield TexturesUsed[MAX_TEXTURE_UNITS];  /**< TEXTURE_x_BIT bitmask */
-   GLbitfield SamplersUsed;   /**< Bitfield of which samplers are used */
-   GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */
-
-
-   /** Named parameters, constants, etc. from program text */
-   struct gl_program_parameter_list *Parameters;
-   /** Numbered local parameters */
-   GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4];
-
-   /** Vertex/fragment shader varying vars */
-   struct gl_program_parameter_list *Varying;
-   /** Vertex program user-defined attributes */
-   struct gl_program_parameter_list *Attributes;
-
-   /** Map from sampler unit to texture unit (set by glUniform1i()) */
-   GLubyte SamplerUnits[MAX_SAMPLERS];
-   /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
-   gl_texture_index SamplerTargets[MAX_SAMPLERS];
-
-   /** Bitmask of which register files are read/written with indirect
-    * addressing.  Mask of (1 << PROGRAM_x) bits.
-    */
-   GLbitfield IndirectRegisterFiles;
-
-   /** Logical counts */
-   /*@{*/
-   GLuint NumInstructions;
-   GLuint NumTemporaries;
-   GLuint NumParameters;
-   GLuint NumAttributes;
-   GLuint NumAddressRegs;
-   GLuint NumAluInstructions;
-   GLuint NumTexInstructions;
-   GLuint NumTexIndirections;
-   /*@}*/
-   /** Native, actual h/w counts */
-   /*@{*/
-   GLuint NumNativeInstructions;
-   GLuint NumNativeTemporaries;
-   GLuint NumNativeParameters;
-   GLuint NumNativeAttributes;
-   GLuint NumNativeAddressRegs;
-   GLuint NumNativeAluInstructions;
-   GLuint NumNativeTexInstructions;
-   GLuint NumNativeTexIndirections;
-   /*@}*/
-};
-
-
-/** Vertex program object */
-struct gl_vertex_program
-{
-   struct gl_program Base;   /**< base class */
-   GLboolean IsNVProgram;    /**< is this a GL_NV_vertex_program program? */
-   GLboolean IsPositionInvariant;
-};
-
-
-/** Geometry program object */
-struct gl_geometry_program
-{
-   struct gl_program Base;   /**< base class */
-
-   GLint VerticesOut;
-   GLenum InputType;  /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
-                           GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
-   GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
-};
-
-
-/** Fragment program object */
-struct gl_fragment_program
-{
-   struct gl_program Base;   /**< base class */
-   GLenum FogOption;
-   GLboolean UsesKill;          /**< shader uses KIL instruction */
-   GLboolean OriginUpperLeft;
-   GLboolean PixelCenterInteger;
-   enum gl_frag_depth_layout FragDepthLayout;
-};
-
-
-/**
- * State common to vertex and fragment programs.
- */
-struct gl_program_state
-{
-   GLint ErrorPos;                       /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
-   const char *ErrorString;              /* GL_PROGRAM_ERROR_STRING_ARB/NV */
-};
-
-
-/**
- * Context state for vertex programs.
- */
-struct gl_vertex_program_state
-{
-   GLboolean Enabled;            /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
-   GLboolean _Enabled;           /**< Enabled and _valid_ user program? */
-   GLboolean PointSizeEnabled;   /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
-   GLboolean TwoSideEnabled;     /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
-   struct gl_vertex_program *Current;  /**< User-bound vertex program */
-
-   /** Currently enabled and valid vertex program (including internal
-    * programs, user-defined vertex programs and GLSL vertex shaders).
-    * This is the program we must use when rendering.
-    */
-   struct gl_vertex_program *_Current;
-
-   GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
-
-   /* For GL_NV_vertex_program only: */
-   GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4];
-   GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4];
-
-   /** Should fixed-function T&L be implemented with a vertex prog? */
-   GLboolean _MaintainTnlProgram;
-
-   /** Program to emulate fixed-function T&L (see above) */
-   struct gl_vertex_program *_TnlProgram;
-
-   /** Cache of fixed-function programs */
-   struct gl_program_cache *Cache;
-
-   GLboolean _Overriden;
-};
-
-
-/**
- * Context state for geometry programs.
- */
-struct gl_geometry_program_state
-{
-   GLboolean Enabled;               /**< GL_ARB_GEOMETRY_SHADER4 */
-   GLboolean _Enabled;              /**< Enabled and valid program? */
-   struct gl_geometry_program *Current;  /**< user-bound geometry program */
-
-   /** Currently enabled and valid program (including internal programs
-    * and compiled shader programs).
-    */
-   struct gl_geometry_program *_Current;
-
-   GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
-
-   /** Cache of fixed-function programs */
-   struct gl_program_cache *Cache;
-};
-
-/**
- * Context state for fragment programs.
- */
-struct gl_fragment_program_state
-{
-   GLboolean Enabled;     /**< User-set fragment program enable flag */
-   GLboolean _Enabled;    /**< Enabled and _valid_ user program? */
-   struct gl_fragment_program *Current;  /**< User-bound fragment program */
-
-   /** Currently enabled and valid fragment program (including internal
-    * programs, user-defined fragment programs and GLSL fragment shaders).
-    * This is the program we must use when rendering.
-    */
-   struct gl_fragment_program *_Current;
-
-   GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
-
-   /** Should fixed-function texturing be implemented with a fragment prog? */
-   GLboolean _MaintainTexEnvProgram;
-
-   /** Program to emulate fixed-function texture env/combine (see above) */
-   struct gl_fragment_program *_TexEnvProgram;
-
-   /** Cache of fixed-function programs */
-   struct gl_program_cache *Cache;
-};
-
-
-/**
- * ATI_fragment_shader runtime state
- */
-#define ATI_FS_INPUT_PRIMARY 0
-#define ATI_FS_INPUT_SECONDARY 1
-
-struct atifs_instruction;
-struct atifs_setupinst;
-
-/**
- * ATI fragment shader
- */
-struct ati_fragment_shader
-{
-   GLuint Id;
-   GLint RefCount;
-   struct atifs_instruction *Instructions[2];
-   struct atifs_setupinst *SetupInst[2];
-   GLfloat Constants[8][4];
-   GLbitfield LocalConstDef;  /**< Indicates which constants have been set */
-   GLubyte numArithInstr[2];
-   GLubyte regsAssigned[2];
-   GLubyte NumPasses;         /**< 1 or 2 */
-   GLubyte cur_pass;
-   GLubyte last_optype;
-   GLboolean interpinp1;
-   GLboolean isValid;
-   GLuint swizzlerq;
-};
-
-/**
- * Context state for GL_ATI_fragment_shader
- */
-struct gl_ati_fragment_shader_state
-{
-   GLboolean Enabled;
-   GLboolean _Enabled;                  /**< enabled and valid shader? */
-   GLboolean Compiling;
-   GLfloat GlobalConstants[8][4];
-   struct ati_fragment_shader *Current;
-};
-
-
-/**
- * Occlusion/timer query object.
- */
-struct gl_query_object
-{
-   GLenum Target;      /**< The query target, when active */
-   GLuint Id;          /**< hash table ID/name */
-   GLuint64EXT Result; /**< the counter */
-   GLboolean Active;   /**< inside Begin/EndQuery */
-   GLboolean Ready;    /**< result is ready? */
-};
-
-
-/**
- * Context state for query objects.
- */
-struct gl_query_state
-{
-   struct _mesa_HashTable *QueryObjects;
-   struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */
-   struct gl_query_object *CurrentTimerObject;     /* GL_EXT_timer_query */
-
-   /** GL_NV_conditional_render */
-   struct gl_query_object *CondRenderQuery;
-
-   /** GL_EXT_transform_feedback */
-   struct gl_query_object *PrimitivesGenerated;
-   struct gl_query_object *PrimitivesWritten;
-
-   /** GL_ARB_timer_query */
-   struct gl_query_object *TimeElapsed;
-
-   GLenum CondRenderMode;
-};
-
-
-/** Sync object state */
-struct gl_sync_object {
-   struct simple_node link;
-   GLenum Type;               /**< GL_SYNC_FENCE */
-   GLuint Name;               /**< Fence name */
-   GLint RefCount;            /**< Reference count */
-   GLboolean DeletePending;   /**< Object was deleted while there were still
-			       * live references (e.g., sync not yet finished)
-			       */
-   GLenum SyncCondition;
-   GLbitfield Flags;          /**< Flags passed to glFenceSync */
-   GLuint StatusFlag:1;       /**< Has the sync object been signaled? */
-};
-
-
-/** Set by #pragma directives */
-struct gl_sl_pragmas
-{
-   GLboolean IgnoreOptimize;  /**< ignore #pragma optimize(on/off) ? */
-   GLboolean IgnoreDebug;     /**< ignore #pragma debug(on/off) ? */
-   GLboolean Optimize;  /**< defaults on */
-   GLboolean Debug;     /**< defaults off */
-};
-
-
-/**
- * A GLSL vertex or fragment shader object.
- */
-struct gl_shader
-{
-   GLenum Type;  /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */
-   GLuint Name;  /**< AKA the handle */
-   GLint RefCount;  /**< Reference count */
-   GLboolean DeletePending;
-   GLboolean CompileStatus;
-   const GLchar *Source;  /**< Source code string */
-   GLuint SourceChecksum;       /**< for debug/logging purposes */
-   struct gl_program *Program;  /**< Post-compile assembly code */
-   GLchar *InfoLog;
-   struct gl_sl_pragmas Pragmas;
-
-   unsigned Version;       /**< GLSL version used for linking */
-
-   struct exec_list *ir;
-   struct glsl_symbol_table *symbols;
-
-   /** Shaders containing built-in functions that are used for linking. */
-   struct gl_shader *builtins_to_link[16];
-   unsigned num_builtins_to_link;
-};
-
-
-/**
- * A GLSL program object.
- * Basically a linked collection of vertex and fragment shaders.
- */
-struct gl_shader_program
-{
-   GLenum Type;  /**< Always GL_SHADER_PROGRAM (internal token) */
-   GLuint Name;  /**< aka handle or ID */
-   GLint RefCount;  /**< Reference count */
-   GLboolean DeletePending;
-
-   GLuint NumShaders;          /**< number of attached shaders */
-   struct gl_shader **Shaders; /**< List of attached the shaders */
-
-   /** User-defined attribute bindings (glBindAttribLocation) */
-   struct gl_program_parameter_list *Attributes;
-
-   /** Transform feedback varyings */
-   struct {
-      GLenum BufferMode;
-      GLuint NumVarying;
-      GLchar **VaryingNames;  /**< Array [NumVarying] of char * */
-   } TransformFeedback;
-
-   /** Geometry shader state - copied into gl_geometry_program at link time */
-   struct {
-      GLint VerticesOut;
-      GLenum InputType;  /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
-                              GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
-      GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
-   } Geom;
-
-   /* post-link info: */
-   struct gl_vertex_program *VertexProgram;     /**< Linked vertex program */
-   struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */
-   struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */
-   struct gl_uniform_list *Uniforms;
-   struct gl_program_parameter_list *Varying;
-   GLboolean LinkStatus;   /**< GL_LINK_STATUS */
-   GLboolean Validated;
-   GLboolean _Used;        /**< Ever used for drawing? */
-   GLchar *InfoLog;
-
-   unsigned Version;       /**< GLSL version used for linking */
-
-   /**
-    * Per-stage shaders resulting from the first stage of linking.
-    *
-    * Set of linked shaders for this program.  The array is accessed using the
-    * \c MESA_SHADER_* defines.  Entries for non-existent stages will be
-    * \c NULL.
-    */
-   struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES];
-};   
-
-
-#define GLSL_DUMP      0x1  /**< Dump shaders to stdout */
-#define GLSL_LOG       0x2  /**< Write shaders to files */
-#define GLSL_OPT       0x4  /**< Force optimizations (override pragmas) */
-#define GLSL_NO_OPT    0x8  /**< Force no optimizations (override pragmas) */
-#define GLSL_UNIFORMS 0x10  /**< Print glUniform calls */
-#define GLSL_NOP_VERT 0x20  /**< Force no-op vertex shaders */
-#define GLSL_NOP_FRAG 0x40  /**< Force no-op fragment shaders */
-#define GLSL_USE_PROG 0x80  /**< Log glUseProgram calls */
-
-
-/**
- * Context state for GLSL vertex/fragment shaders.
- */
-struct gl_shader_state
-{
-   /**
-    * Programs used for rendering
-    *
-    * There is a separate program set for each shader stage.  If
-    * GL_EXT_separate_shader_objects is not supported, each of these must point
-    * to \c NULL or to the same program.
-    */
-   struct gl_shader_program *CurrentVertexProgram;
-   struct gl_shader_program *CurrentGeometryProgram;
-   struct gl_shader_program *CurrentFragmentProgram;
-
-   /**
-    * Program used by glUniform calls.
-    *
-    * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
-    */
-   struct gl_shader_program *ActiveProgram;
-
-   void *MemPool;
-
-   GLbitfield Flags;                    /**< Mask of GLSL_x flags */
-};
-
-/**
- * Compiler options for a single GLSL shaders type
- */
-struct gl_shader_compiler_options
-{
-   /** Driver-selectable options: */
-   GLboolean EmitCondCodes;             /**< Use condition codes? */
-   GLboolean EmitNVTempInitialization;  /**< 0-fill NV temp registers */
-   /**
-    * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
-    * support control flow.
-    */
-   GLboolean EmitNoIfs;
-   GLboolean EmitNoLoops;
-   GLboolean EmitNoFunctions;
-   GLboolean EmitNoCont;                  /**< Emit CONT opcode? */
-   GLboolean EmitNoMainReturn;            /**< Emit CONT/RET opcodes? */
-   GLboolean EmitNoNoise;                 /**< Emit NOISE opcodes? */
-   GLboolean EmitNoPow;                   /**< Emit POW opcodes? */
-
-   /**
-    * \name Forms of indirect addressing the driver cannot do.
-    */
-   /*@{*/
-   GLboolean EmitNoIndirectInput;   /**< No indirect addressing of inputs */
-   GLboolean EmitNoIndirectOutput;  /**< No indirect addressing of outputs */
-   GLboolean EmitNoIndirectTemp;    /**< No indirect addressing of temps */
-   GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */
-   /*@}*/
-
-   GLuint MaxUnrollIterations;
-
-   struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */
-};
-
-/**
- * Transform feedback object state
- */
-struct gl_transform_feedback_object
-{
-   GLuint Name;  /**< AKA the object ID */
-   GLint RefCount;
-   GLboolean Active;  /**< Is transform feedback enabled? */
-   GLboolean Paused;  /**< Is transform feedback paused? */
-
-   /** The feedback buffers */
-   GLuint BufferNames[MAX_FEEDBACK_ATTRIBS];
-   struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS];
-
-   /** Start of feedback data in dest buffer */
-   GLintptr Offset[MAX_FEEDBACK_ATTRIBS];
-   /** Max data to put into dest buffer (in bytes) */
-   GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS];
-};
-
-
-/**
- * Context state for transform feedback.
- */
-struct gl_transform_feedback
-{
-   GLenum Mode;       /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
-
-   GLboolean RasterDiscard;  /**< GL_RASTERIZER_DISCARD */
-
-   /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
-   struct gl_buffer_object *CurrentBuffer;
-
-   /** The table of all transform feedback objects */
-   struct _mesa_HashTable *Objects;
-
-   /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
-   struct gl_transform_feedback_object *CurrentObject;
-
-   /** The default xform-fb object (Name==0) */
-   struct gl_transform_feedback_object *DefaultObject;
-};
-
-
-
-/**
- * State which can be shared by multiple contexts:
- */
-struct gl_shared_state
-{
-   _glthread_Mutex Mutex;		   /**< for thread safety */
-   GLint RefCount;			   /**< Reference count */
-   struct _mesa_HashTable *DisplayList;	   /**< Display lists hash table */
-   struct _mesa_HashTable *TexObjects;	   /**< Texture objects hash table */
-
-   /** Default texture objects (shared by all texture units) */
-   struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS];
-
-   /** Fallback texture used when a bound texture is incomplete */
-   struct gl_texture_object *FallbackTex;
-
-   /**
-    * \name Thread safety and statechange notification for texture
-    * objects. 
-    *
-    * \todo Improve the granularity of locking.
-    */
-   /*@{*/
-   _glthread_Mutex TexMutex;		/**< texobj thread safety */
-   GLuint TextureStateStamp;	        /**< state notification for shared tex */
-   /*@}*/
-
-   /** Default buffer object for vertex arrays that aren't in VBOs */
-   struct gl_buffer_object *NullBufferObj;
-
-   /**
-    * \name Vertex/geometry/fragment programs
-    */
-   /*@{*/
-   struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */
-   struct gl_vertex_program *DefaultVertexProgram;
-   struct gl_fragment_program *DefaultFragmentProgram;
-   struct gl_geometry_program *DefaultGeometryProgram;
-   /*@}*/
-
-   /* GL_ATI_fragment_shader */
-   struct _mesa_HashTable *ATIShaders;
-   struct ati_fragment_shader *DefaultFragmentShader;
-
-   struct _mesa_HashTable *BufferObjects;
-
-   /** Table of both gl_shader and gl_shader_program objects */
-   struct _mesa_HashTable *ShaderObjects;
-
-   /* GL_EXT_framebuffer_object */
-   struct _mesa_HashTable *RenderBuffers;
-   struct _mesa_HashTable *FrameBuffers;
-
-   /* GL_ARB_sync */
-   struct simple_node SyncObjects;
-
-   void *DriverData;  /**< Device driver shared state */
-};
-
-
-
-
-/**
- * A renderbuffer stores colors or depth values or stencil values.
- * A framebuffer object will have a collection of these.
- * Data are read/written to the buffer with a handful of Get/Put functions.
- *
- * Instances of this object are allocated with the Driver's NewRenderbuffer
- * hook.  Drivers will likely wrap this class inside a driver-specific
- * class to simulate inheritance.
- */
-struct gl_renderbuffer
-{
-#define RB_MAGIC 0xaabbccdd
-   int Magic; /** XXX TEMPORARY DEBUG INFO */
-   _glthread_Mutex Mutex;		   /**< for thread safety */
-   GLuint ClassID;        /**< Useful for drivers */
-   GLuint Name;
-   GLint RefCount;
-   GLuint Width, Height;
-   GLboolean Purgeable;   /**< Is the buffer purgeable under memory pressure? */
-
-   GLenum InternalFormat; /**< The user-specified format */
-   GLenum _BaseFormat;    /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
-                               GL_STENCIL_INDEX. */
-   gl_format Format;      /**< The actual renderbuffer memory format */
-
-   GLubyte NumSamples;
-
-   GLenum DataType;      /**< Type of values passed to the Get/Put functions */
-   GLvoid *Data;        /**< This may not be used by some kinds of RBs */
-
-   /* Used to wrap one renderbuffer around another: */
-   struct gl_renderbuffer *Wrapped;
-
-   /* Delete this renderbuffer */
-   void (*Delete)(struct gl_renderbuffer *rb);
-
-   /* Allocate new storage for this renderbuffer */
-   GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                             GLenum internalFormat,
-                             GLuint width, GLuint height);
-
-   /* Lock/Unlock are called before/after calling the Get/Put functions.
-    * Not sure this is the right place for these yet.
-   void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
-   void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
-    */
-
-   /* Return a pointer to the element/pixel at (x,y).
-    * Should return NULL if the buffer memory can't be directly addressed.
-    */
-   void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                       GLint x, GLint y);
-
-   /* Get/Read a row of values.
-    * The values will be of format _BaseFormat and type DataType.
-    */
-   void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
-                  GLint x, GLint y, void *values);
-
-   /* Get/Read values at arbitrary locations.
-    * The values will be of format _BaseFormat and type DataType.
-    */
-   void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
-                     const GLint x[], const GLint y[], void *values);
-
-   /* Put/Write a row of values.
-    * The values will be of format _BaseFormat and type DataType.
-    */
-   void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
-                  GLint x, GLint y, const void *values, const GLubyte *mask);
-
-   /* Put/Write a row of RGB values.  This is a special-case routine that's
-    * only used for RGBA renderbuffers when the source data is GL_RGB. That's
-    * a common case for glDrawPixels and some triangle routines.
-    * The values will be of format GL_RGB and type DataType.
-    */
-   void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
-                    GLint x, GLint y, const void *values, const GLubyte *mask);
-
-
-   /* Put/Write a row of identical values.
-    * The values will be of format _BaseFormat and type DataType.
-    */
-   void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
-                     GLint x, GLint y, const void *value, const GLubyte *mask);
-
-   /* Put/Write values at arbitrary locations.
-    * The values will be of format _BaseFormat and type DataType.
-    */
-   void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
-                     const GLint x[], const GLint y[], const void *values,
-                     const GLubyte *mask);
-   /* Put/Write identical values at arbitrary locations.
-    * The values will be of format _BaseFormat and type DataType.
-    */
-   void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                         GLuint count, const GLint x[], const GLint y[],
-                         const void *value, const GLubyte *mask);
-};
-
-
-/**
- * A renderbuffer attachment points to either a texture object (and specifies
- * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
- */
-struct gl_renderbuffer_attachment
-{
-   GLenum Type;  /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
-   GLboolean Complete;
-
-   /**
-    * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
-    * application supplied renderbuffer object.
-    */
-   struct gl_renderbuffer *Renderbuffer;
-
-   /**
-    * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
-    * supplied texture object.
-    */
-   struct gl_texture_object *Texture;
-   GLuint TextureLevel; /**< Attached mipmap level. */
-   GLuint CubeMapFace;  /**< 0 .. 5, for cube map textures. */
-   GLuint Zoffset;      /**< Slice for 3D textures,  or layer for both 1D
-                         * and 2D array textures */
-};
-
-
-/**
- * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
- * In C++ terms, think of this as a base class from which device drivers
- * will make derived classes.
- */
-struct gl_framebuffer
-{
-   _glthread_Mutex Mutex;  /**< for thread safety */
-   /**
-    * If zero, this is a window system framebuffer.  If non-zero, this
-    * is a FBO framebuffer; note that for some devices (i.e. those with
-    * a natural pixel coordinate system for FBOs that differs from the
-    * OpenGL/Mesa coordinate system), this means that the viewport,
-    * polygon face orientation, and polygon stipple will have to be inverted.
-    */
-   GLuint Name;
-
-   GLint RefCount;
-   GLboolean DeletePending;
-
-   /**
-    * The framebuffer's visual. Immutable if this is a window system buffer.
-    * Computed from attachments if user-made FBO.
-    */
-   struct gl_config Visual;
-
-   GLboolean Initialized;
-
-   GLuint Width, Height;	/**< size of frame buffer in pixels */
-
-   /** \name  Drawing bounds (Intersection of buffer size and scissor box) */
-   /*@{*/
-   GLint _Xmin, _Xmax;  /**< inclusive */
-   GLint _Ymin, _Ymax;  /**< exclusive */
-   /*@}*/
-
-   /** \name  Derived Z buffer stuff */
-   /*@{*/
-   GLuint _DepthMax;	/**< Max depth buffer value */
-   GLfloat _DepthMaxF;	/**< Float max depth buffer value */
-   GLfloat _MRD;	/**< minimum resolvable difference in Z values */
-   /*@}*/
-
-   /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
-   GLenum _Status;
-
-   /** Integer color values */
-   GLboolean _IntegerColor;
-
-   /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
-   struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT];
-
-   /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
-    * attribute group and GL_PIXEL attribute group, respectively.
-    */
-   GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS];
-   GLenum ColorReadBuffer;
-
-   /** Computed from ColorDraw/ReadBuffer above */
-   GLuint _NumColorDrawBuffers;
-   GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */
-   GLint _ColorReadBufferIndex; /* -1 = None */
-   struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS];
-   struct gl_renderbuffer *_ColorReadBuffer;
-
-   /** The Actual depth/stencil buffers to use.  May be wrappers around the
-    * depth/stencil buffers attached above. */
-   struct gl_renderbuffer *_DepthBuffer;
-   struct gl_renderbuffer *_StencilBuffer;
-
-   /** Delete this framebuffer */
-   void (*Delete)(struct gl_framebuffer *fb);
-};
-
-
-/**
- * Precision info for shader datatypes.  See glGetShaderPrecisionFormat().
- */
-struct gl_precision
-{
-   GLushort RangeMin;   /**< min value exponent */
-   GLushort RangeMax;   /**< max value exponent */
-   GLushort Precision;  /**< number of mantissa bits */
-};
-
-
-/**
- * Limits for vertex and fragment programs/shaders.
- */
-struct gl_program_constants
-{
-   /* logical limits */
-   GLuint MaxInstructions;
-   GLuint MaxAluInstructions;
-   GLuint MaxTexInstructions;
-   GLuint MaxTexIndirections;
-   GLuint MaxAttribs;
-   GLuint MaxTemps;
-   GLuint MaxAddressRegs;
-   GLuint MaxParameters;
-   GLuint MaxLocalParams;
-   GLuint MaxEnvParams;
-   /* native/hardware limits */
-   GLuint MaxNativeInstructions;
-   GLuint MaxNativeAluInstructions;
-   GLuint MaxNativeTexInstructions;
-   GLuint MaxNativeTexIndirections;
-   GLuint MaxNativeAttribs;
-   GLuint MaxNativeTemps;
-   GLuint MaxNativeAddressRegs;
-   GLuint MaxNativeParameters;
-   /* For shaders */
-   GLuint MaxUniformComponents;
-   /* GL_ARB_geometry_shader4 */
-   GLuint MaxGeometryTextureImageUnits;
-   GLuint MaxGeometryVaryingComponents;
-   GLuint MaxVertexVaryingComponents;
-   GLuint MaxGeometryUniformComponents;
-   GLuint MaxGeometryOutputVertices;
-   GLuint MaxGeometryTotalOutputComponents;
-   /* ES 2.0 and GL_ARB_ES2_compatibility */
-   struct gl_precision LowFloat, MediumFloat, HighFloat;
-   struct gl_precision LowInt, MediumInt, HighInt;
-};
-
-
-/**
- * Constants which may be overridden by device driver during context creation
- * but are never changed after that.
- */
-struct gl_constants
-{
-   GLint MaxTextureMbytes;      /**< Max memory per image, in MB */
-   GLint MaxTextureLevels;      /**< Max mipmap levels. */ 
-   GLint Max3DTextureLevels;    /**< Max mipmap levels for 3D textures */
-   GLint MaxCubeTextureLevels;  /**< Max mipmap levels for cube textures */
-   GLint MaxArrayTextureLayers; /**< Max layers in array textures */
-   GLint MaxTextureRectSize;    /**< Max rectangle texture size, in pixes */
-   GLuint MaxTextureCoordUnits;
-   GLuint MaxTextureImageUnits;
-   GLuint MaxVertexTextureImageUnits;
-   GLuint MaxCombinedTextureImageUnits;
-   GLuint MaxTextureUnits;           /**< = MIN(CoordUnits, ImageUnits) */
-   GLfloat MaxTextureMaxAnisotropy;  /**< GL_EXT_texture_filter_anisotropic */
-   GLfloat MaxTextureLodBias;        /**< GL_EXT_texture_lod_bias */
-
-   GLuint MaxArrayLockSize;
-
-   GLint SubPixelBits;
-
-   GLfloat MinPointSize, MaxPointSize;	     /**< aliased */
-   GLfloat MinPointSizeAA, MaxPointSizeAA;   /**< antialiased */
-   GLfloat PointSizeGranularity;
-   GLfloat MinLineWidth, MaxLineWidth;       /**< aliased */
-   GLfloat MinLineWidthAA, MaxLineWidthAA;   /**< antialiased */
-   GLfloat LineWidthGranularity;
-
-   GLuint MaxColorTableSize;
-
-   GLuint MaxClipPlanes;
-   GLuint MaxLights;
-   GLfloat MaxShininess;                     /**< GL_NV_light_max_exponent */
-   GLfloat MaxSpotExponent;                  /**< GL_NV_light_max_exponent */
-
-   GLuint MaxViewportWidth, MaxViewportHeight;
-
-   struct gl_program_constants VertexProgram;   /**< GL_ARB_vertex_program */
-   struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */
-   struct gl_program_constants GeometryProgram;  /**< GL_ARB_geometry_shader4 */
-   GLuint MaxProgramMatrices;
-   GLuint MaxProgramMatrixStackDepth;
-
-   /** vertex array / buffer object bounds checking */
-   GLboolean CheckArrayBounds;
-
-   GLuint MaxDrawBuffers;    /**< GL_ARB_draw_buffers */
-
-   GLuint MaxColorAttachments;   /**< GL_EXT_framebuffer_object */
-   GLuint MaxRenderbufferSize;   /**< GL_EXT_framebuffer_object */
-   GLuint MaxSamples;            /**< GL_ARB_framebuffer_object */
-
-   GLuint MaxVarying;  /**< Number of float[4] varying parameters */
-
-   GLuint GLSLVersion;  /**< GLSL version supported (ex: 120 = 1.20) */
-
-   /** Which texture units support GL_ATI_envmap_bumpmap as targets */
-   GLbitfield SupportedBumpUnits;
-
-   /**
-    * Maximum amount of time, measured in nanseconds, that the server can wait.
-    */
-   GLuint64 MaxServerWaitTimeout;
-
-   /** GL_EXT_provoking_vertex */
-   GLboolean QuadsFollowProvokingVertexConvention;
-
-   /** OpenGL version 3.0 */
-   GLbitfield ContextFlags;  /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
-
-   /** OpenGL version 3.2 */
-   GLbitfield ProfileMask;   /**< Mask of CONTEXT_x_PROFILE_BIT */
-
-   /** GL_EXT_transform_feedback */
-   GLuint MaxTransformFeedbackSeparateAttribs;
-   GLuint MaxTransformFeedbackSeparateComponents;
-   GLuint MaxTransformFeedbackInterleavedComponents;
-
-   /** GL_EXT_gpu_shader4 */
-   GLint MinProgramTexelOffset, MaxProgramTexelOffset;
-
-   /* GL_EXT_framebuffer_sRGB */
-   GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */
-};
-
-
-/**
- * Enable flag for each OpenGL extension.  Different device drivers will
- * enable different extensions at runtime.
- */
-struct gl_extensions
-{
-   GLboolean dummy;  /* don't remove this! */
-   GLboolean dummy_true;  /* Set true by _mesa_init_extensions(). */
-   GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */
-   GLboolean ARB_ES2_compatibility;
-   GLboolean ARB_blend_func_extended;
-   GLboolean ARB_copy_buffer;
-   GLboolean ARB_depth_buffer_float;
-   GLboolean ARB_depth_clamp;
-   GLboolean ARB_depth_texture;
-   GLboolean ARB_draw_buffers;
-   GLboolean ARB_draw_buffers_blend;
-   GLboolean ARB_draw_elements_base_vertex;
-   GLboolean ARB_draw_instanced;
-   GLboolean ARB_fragment_coord_conventions;
-   GLboolean ARB_fragment_program;
-   GLboolean ARB_fragment_program_shadow;
-   GLboolean ARB_fragment_shader;
-   GLboolean ARB_framebuffer_object;
-   GLboolean ARB_explicit_attrib_location;
-   GLboolean ARB_geometry_shader4;
-   GLboolean ARB_half_float_pixel;
-   GLboolean ARB_half_float_vertex;
-   GLboolean ARB_instanced_arrays;
-   GLboolean ARB_map_buffer_range;
-   GLboolean ARB_multisample;
-   GLboolean ARB_multitexture;
-   GLboolean ARB_occlusion_query;
-   GLboolean ARB_occlusion_query2;
-   GLboolean ARB_point_sprite;
-   GLboolean ARB_sampler_objects;
-   GLboolean ARB_seamless_cube_map;
-   GLboolean ARB_shader_objects;
-   GLboolean ARB_shader_stencil_export;
-   GLboolean ARB_shading_language_100;
-   GLboolean ARB_shadow;
-   GLboolean ARB_shadow_ambient;
-   GLboolean ARB_sync;
-   GLboolean ARB_texture_border_clamp;
-   GLboolean ARB_texture_buffer_object;
-   GLboolean ARB_texture_compression;
-   GLboolean ARB_texture_compression_rgtc;
-   GLboolean ARB_texture_cube_map;
-   GLboolean ARB_texture_env_combine;
-   GLboolean ARB_texture_env_crossbar;
-   GLboolean ARB_texture_env_dot3;
-   GLboolean ARB_texture_float;
-   GLboolean ARB_texture_mirrored_repeat;
-   GLboolean ARB_texture_multisample;
-   GLboolean ARB_texture_non_power_of_two;
-   GLboolean ARB_texture_rg;
-   GLboolean ARB_texture_rgb10_a2ui;
-   GLboolean ARB_timer_query;
-   GLboolean ARB_transform_feedback2;
-   GLboolean ARB_transpose_matrix;
-   GLboolean ARB_uniform_buffer_object;
-   GLboolean ARB_vertex_array_object;
-   GLboolean ARB_vertex_buffer_object;
-   GLboolean ARB_vertex_program;
-   GLboolean ARB_vertex_shader;
-   GLboolean ARB_vertex_type_2_10_10_10_rev;
-   GLboolean ARB_window_pos;
-   GLboolean EXT_abgr;
-   GLboolean EXT_bgra;
-   GLboolean EXT_blend_color;
-   GLboolean EXT_blend_equation_separate;
-   GLboolean EXT_blend_func_separate;
-   GLboolean EXT_blend_logic_op;
-   GLboolean EXT_blend_minmax;
-   GLboolean EXT_blend_subtract;
-   GLboolean EXT_clip_volume_hint;
-   GLboolean EXT_compiled_vertex_array;
-   GLboolean EXT_copy_texture;
-   GLboolean EXT_depth_bounds_test;
-   GLboolean EXT_draw_buffers2;
-   GLboolean EXT_draw_range_elements;
-   GLboolean EXT_fog_coord;
-   GLboolean EXT_framebuffer_blit;
-   GLboolean EXT_framebuffer_multisample;
-   GLboolean EXT_framebuffer_object;
-   GLboolean EXT_framebuffer_sRGB;
-   GLboolean EXT_gpu_program_parameters;
-   GLboolean EXT_gpu_shader4;
-   GLboolean EXT_multi_draw_arrays;
-   GLboolean EXT_paletted_texture;
-   GLboolean EXT_packed_depth_stencil;
-   GLboolean EXT_packed_float;
-   GLboolean EXT_packed_pixels;
-   GLboolean EXT_pixel_buffer_object;
-   GLboolean EXT_point_parameters;
-   GLboolean EXT_polygon_offset;
-   GLboolean EXT_provoking_vertex;
-   GLboolean EXT_rescale_normal;
-   GLboolean EXT_shadow_funcs;
-   GLboolean EXT_secondary_color;
-   GLboolean EXT_separate_shader_objects;
-   GLboolean EXT_separate_specular_color;
-   GLboolean EXT_shared_texture_palette;
-   GLboolean EXT_stencil_wrap;
-   GLboolean EXT_stencil_two_side;
-   GLboolean EXT_subtexture;
-   GLboolean EXT_texture;
-   GLboolean EXT_texture_object;
-   GLboolean EXT_texture3D;
-   GLboolean EXT_texture_array;
-   GLboolean EXT_texture_compression_s3tc;
-   GLboolean EXT_texture_env_add;
-   GLboolean EXT_texture_env_combine;
-   GLboolean EXT_texture_env_dot3;
-   GLboolean EXT_texture_filter_anisotropic;
-   GLboolean EXT_texture_integer;
-   GLboolean EXT_texture_lod_bias;
-   GLboolean EXT_texture_mirror_clamp;
-   GLboolean EXT_texture_shared_exponent;
-   GLboolean EXT_texture_sRGB;
-   GLboolean EXT_texture_sRGB_decode;
-   GLboolean EXT_texture_swizzle;
-   GLboolean EXT_transform_feedback;
-   GLboolean EXT_timer_query;
-   GLboolean EXT_vertex_array;
-   GLboolean EXT_vertex_array_bgra;
-   GLboolean EXT_vertex_array_set;
-   GLboolean OES_standard_derivatives;
-   /* vendor extensions */
-   GLboolean AMD_conservative_depth;
-   GLboolean APPLE_client_storage;
-   GLboolean APPLE_packed_pixels;
-   GLboolean APPLE_vertex_array_object;
-   GLboolean APPLE_object_purgeable;
-   GLboolean ATI_envmap_bumpmap;
-   GLboolean ATI_texture_mirror_once;
-   GLboolean ATI_texture_env_combine3;
-   GLboolean ATI_fragment_shader;
-   GLboolean ATI_separate_stencil;
-   GLboolean IBM_rasterpos_clip;
-   GLboolean IBM_multimode_draw_arrays;
-   GLboolean MESA_pack_invert;
-   GLboolean MESA_resize_buffers;
-   GLboolean MESA_ycbcr_texture;
-   GLboolean MESA_texture_array;
-   GLboolean MESA_texture_signed_rgba;
-   GLboolean NV_blend_square;
-   GLboolean NV_conditional_render;
-   GLboolean NV_fragment_program;
-   GLboolean NV_fragment_program_option;
-   GLboolean NV_light_max_exponent;
-   GLboolean NV_point_sprite;
-   GLboolean NV_primitive_restart;
-   GLboolean NV_texgen_reflection;
-   GLboolean NV_texture_env_combine4;
-   GLboolean NV_texture_rectangle;
-   GLboolean NV_vertex_program;
-   GLboolean NV_vertex_program1_1;
-   GLboolean OES_read_format;
-   GLboolean SGI_texture_color_table;
-   GLboolean SGIS_generate_mipmap;
-   GLboolean SGIS_texture_edge_clamp;
-   GLboolean SGIS_texture_lod;
-   GLboolean TDFX_texture_compression_FXT1;
-   GLboolean S3_s3tc;
-   GLboolean OES_EGL_image;
-   GLboolean OES_draw_texture;
-   GLboolean EXT_texture_format_BGRA8888;
-   GLboolean extension_sentinel;
-   /** The extension string */
-   const GLubyte *String;
-   /** Number of supported extensions */
-   GLuint Count;
-};
-
-
-/**
- * A stack of matrices (projection, modelview, color, texture, etc).
- */
-struct gl_matrix_stack
-{
-   GLmatrix *Top;      /**< points into Stack */
-   GLmatrix *Stack;    /**< array [MaxDepth] of GLmatrix */
-   GLuint Depth;       /**< 0 <= Depth < MaxDepth */
-   GLuint MaxDepth;    /**< size of Stack[] array */
-   GLuint DirtyFlag;   /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
-};
-
-
-/**
- * \name Bits for image transfer operations 
- * \sa __struct gl_contextRec::ImageTransferState.
- */
-/*@{*/
-#define IMAGE_SCALE_BIAS_BIT                      0x1
-#define IMAGE_SHIFT_OFFSET_BIT                    0x2
-#define IMAGE_MAP_COLOR_BIT                       0x4
-#define IMAGE_CLAMP_BIT                           0x800
-
-
-/** Pixel Transfer ops */
-#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT |			\
-		    IMAGE_SHIFT_OFFSET_BIT |			\
-		    IMAGE_MAP_COLOR_BIT)
-
-/**
- * \name Bits to indicate what state has changed.  
- */
-/*@{*/
-#define _NEW_MODELVIEW         (1 << 0)   /**< gl_context::ModelView */
-#define _NEW_PROJECTION        (1 << 1)   /**< gl_context::Projection */
-#define _NEW_TEXTURE_MATRIX    (1 << 2)   /**< gl_context::TextureMatrix */
-#define _NEW_COLOR             (1 << 3)   /**< gl_context::Color */
-#define _NEW_DEPTH             (1 << 4)   /**< gl_context::Depth */
-#define _NEW_EVAL              (1 << 5)   /**< gl_context::Eval, EvalMap */
-#define _NEW_FOG               (1 << 6)   /**< gl_context::Fog */
-#define _NEW_HINT              (1 << 7)   /**< gl_context::Hint */
-#define _NEW_LIGHT             (1 << 8)   /**< gl_context::Light */
-#define _NEW_LINE              (1 << 9)   /**< gl_context::Line */
-#define _NEW_PIXEL             (1 << 10)  /**< gl_context::Pixel */
-#define _NEW_POINT             (1 << 11)  /**< gl_context::Point */
-#define _NEW_POLYGON           (1 << 12)  /**< gl_context::Polygon */
-#define _NEW_POLYGONSTIPPLE    (1 << 13)  /**< gl_context::PolygonStipple */
-#define _NEW_SCISSOR           (1 << 14)  /**< gl_context::Scissor */
-#define _NEW_STENCIL           (1 << 15)  /**< gl_context::Stencil */
-#define _NEW_TEXTURE           (1 << 16)  /**< gl_context::Texture */
-#define _NEW_TRANSFORM         (1 << 17)  /**< gl_context::Transform */
-#define _NEW_VIEWPORT          (1 << 18)  /**< gl_context::Viewport */
-#define _NEW_PACKUNPACK        (1 << 19)  /**< gl_context::Pack, Unpack */
-#define _NEW_ARRAY             (1 << 20)  /**< gl_context::Array */
-#define _NEW_RENDERMODE        (1 << 21)  /**< gl_context::RenderMode, etc */
-#define _NEW_BUFFERS           (1 << 22)  /**< gl_context::Visual, DrawBuffer, */
-#define _NEW_CURRENT_ATTRIB    (1 << 23)  /**< gl_context::Current */
-#define _NEW_MULTISAMPLE       (1 << 24)  /**< gl_context::Multisample */
-#define _NEW_TRACK_MATRIX      (1 << 25)  /**< gl_context::VertexProgram */
-#define _NEW_PROGRAM           (1 << 26)  /**< New program/shader state */
-#define _NEW_PROGRAM_CONSTANTS (1 << 27)
-#define _NEW_BUFFER_OBJECT     (1 << 28)
-#define _NEW_ALL ~0
-/*@}*/
-
-
-/**
- * \name Bits to track array state changes 
- *
- * Also used to summarize array enabled.
- */
-/*@{*/
-#define _NEW_ARRAY_VERTEX           VERT_BIT_POS
-#define _NEW_ARRAY_WEIGHT           VERT_BIT_WEIGHT
-#define _NEW_ARRAY_NORMAL           VERT_BIT_NORMAL
-#define _NEW_ARRAY_COLOR0           VERT_BIT_COLOR0
-#define _NEW_ARRAY_COLOR1           VERT_BIT_COLOR1
-#define _NEW_ARRAY_FOGCOORD         VERT_BIT_FOG
-#define _NEW_ARRAY_INDEX            VERT_BIT_COLOR_INDEX
-#define _NEW_ARRAY_EDGEFLAG         VERT_BIT_EDGEFLAG
-#define _NEW_ARRAY_POINT_SIZE       VERT_BIT_COLOR_INDEX  /* aliased */
-#define _NEW_ARRAY_TEXCOORD_0       VERT_BIT_TEX0
-#define _NEW_ARRAY_TEXCOORD_1       VERT_BIT_TEX1
-#define _NEW_ARRAY_TEXCOORD_2       VERT_BIT_TEX2
-#define _NEW_ARRAY_TEXCOORD_3       VERT_BIT_TEX3
-#define _NEW_ARRAY_TEXCOORD_4       VERT_BIT_TEX4
-#define _NEW_ARRAY_TEXCOORD_5       VERT_BIT_TEX5
-#define _NEW_ARRAY_TEXCOORD_6       VERT_BIT_TEX6
-#define _NEW_ARRAY_TEXCOORD_7       VERT_BIT_TEX7
-#define _NEW_ARRAY_ATTRIB_0         VERT_BIT_GENERIC0  /* start at bit 16 */
-#define _NEW_ARRAY_ALL              0xffffffff
-
-
-#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
-#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i))
-/*@}*/
-
-
-
-/**
- * \name A bunch of flags that we think might be useful to drivers.
- * 
- * Set in the __struct gl_contextRec::_TriangleCaps bitfield.
- */
-/*@{*/
-#define DD_FLATSHADE                0x1
-#define DD_SEPARATE_SPECULAR        0x2
-#define DD_TRI_CULL_FRONT_BACK      0x4 /* special case on some hw */
-#define DD_TRI_LIGHT_TWOSIDE        0x8
-#define DD_TRI_UNFILLED             0x10
-#define DD_TRI_SMOOTH               0x20
-#define DD_TRI_STIPPLE              0x40
-#define DD_TRI_OFFSET               0x80
-#define DD_LINE_SMOOTH              0x100
-#define DD_LINE_STIPPLE             0x200
-#define DD_POINT_SMOOTH             0x400
-#define DD_POINT_ATTEN              0x800
-#define DD_TRI_TWOSTENCIL           0x1000
-/*@}*/
-
-
-/**
- * \name Define the state changes under which each of these bits might change
- */
-/*@{*/
-#define _DD_NEW_FLATSHADE                _NEW_LIGHT
-#define _DD_NEW_SEPARATE_SPECULAR        (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)
-#define _DD_NEW_TRI_CULL_FRONT_BACK      _NEW_POLYGON
-#define _DD_NEW_TRI_LIGHT_TWOSIDE        _NEW_LIGHT
-#define _DD_NEW_TRI_UNFILLED             _NEW_POLYGON
-#define _DD_NEW_TRI_SMOOTH               _NEW_POLYGON
-#define _DD_NEW_TRI_STIPPLE              _NEW_POLYGON
-#define _DD_NEW_TRI_OFFSET               _NEW_POLYGON
-#define _DD_NEW_LINE_SMOOTH              _NEW_LINE
-#define _DD_NEW_LINE_STIPPLE             _NEW_LINE
-#define _DD_NEW_LINE_WIDTH               _NEW_LINE
-#define _DD_NEW_POINT_SMOOTH             _NEW_POINT
-#define _DD_NEW_POINT_SIZE               _NEW_POINT
-#define _DD_NEW_POINT_ATTEN              _NEW_POINT
-/*@}*/
-
-
-/**
- * Composite state flags
- */
-/*@{*/
-#define _MESA_NEW_NEED_EYE_COORDS         (_NEW_LIGHT |		\
-                                           _NEW_TEXTURE |	\
-                                           _NEW_POINT |		\
-                                           _NEW_PROGRAM |	\
-                                           _NEW_MODELVIEW)
-
-#define _MESA_NEW_NEED_NORMALS            (_NEW_LIGHT |		\
-                                           _NEW_TEXTURE)
-
-#define _MESA_NEW_TRANSFER_STATE          (_NEW_PIXEL)
-/*@}*/
-
-
-
-
-/* This has to be included here. */
-#include "dd.h"
-
-
-/**
- * Display list flags.
- * Strictly this is a tnl-private concept, but it doesn't seem
- * worthwhile adding a tnl private structure just to hold this one bit
- * of information:
- */
-#define DLIST_DANGLING_REFS     0x1 
-
-
-/** Opaque declaration of display list payload data type */
-union gl_dlist_node;
-
-
-/**
- * Provide a location where information about a display list can be
- * collected.  Could be extended with driverPrivate structures,
- * etc. in the future.
- */
-struct gl_display_list
-{
-   GLuint Name;
-   GLbitfield Flags;  /**< DLIST_x flags */
-   /** The dlist commands are in a linked list of nodes */
-   union gl_dlist_node *Head;
-};
-
-
-/**
- * State used during display list compilation and execution.
- */
-struct gl_dlist_state
-{
-   GLuint CallDepth;		/**< Current recursion calling depth */
-
-   struct gl_display_list *CurrentList; /**< List currently being compiled */
-   union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */
-   GLuint CurrentPos;		/**< Index into current block of nodes */
-
-   GLvertexformat ListVtxfmt;
-
-   GLubyte ActiveAttribSize[VERT_ATTRIB_MAX];
-   GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4];
-   
-   GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX];
-   GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4];
-
-   GLubyte ActiveIndex;
-   GLfloat CurrentIndex;
-   
-   GLubyte ActiveEdgeFlag;
-   GLboolean CurrentEdgeFlag;
-
-   struct {
-      /* State known to have been set by the currently-compiling display
-       * list.  Used to eliminate some redundant state changes.
-       */
-      GLenum ShadeModel;
-   } Current;
-};
-
-
-/**
- * Enum for the OpenGL APIs we know about and may support.
- */
-typedef enum
-{
-   API_OPENGL,
-   API_OPENGLES,
-   API_OPENGLES2
-} gl_api;
-
-
-/**
- * Mesa rendering context.
- *
- * This is the central context data structure for Mesa.  Almost all
- * OpenGL state is contained in this structure.
- * Think of this as a base class from which device drivers will derive
- * sub classes.
- *
- * The struct gl_context typedef names this structure.
- */
-struct gl_context
-{
-   /** State possibly shared with other contexts in the address space */
-   struct gl_shared_state *Shared;
-
-   /** \name API function pointer tables */
-   /*@{*/
-   gl_api API;
-   struct _glapi_table *Save;	/**< Display list save functions */
-   struct _glapi_table *Exec;	/**< Execute functions */
-   struct _glapi_table *CurrentDispatch;  /**< == Save or Exec !! */
-   /*@}*/
-
-   struct gl_config Visual;
-   struct gl_framebuffer *DrawBuffer;	/**< buffer for writing */
-   struct gl_framebuffer *ReadBuffer;	/**< buffer for reading */
-   struct gl_framebuffer *WinSysDrawBuffer;  /**< set with MakeCurrent */
-   struct gl_framebuffer *WinSysReadBuffer;  /**< set with MakeCurrent */
-
-   /**
-    * Device driver function pointer table
-    */
-   struct dd_function_table Driver;
-
-   void *DriverCtx;	/**< Points to device driver context/state */
-
-   /** Core/Driver constants */
-   struct gl_constants Const;
-
-   /** \name The various 4x4 matrix stacks */
-   /*@{*/
-   struct gl_matrix_stack ModelviewMatrixStack;
-   struct gl_matrix_stack ProjectionMatrixStack;
-   struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS];
-   struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES];
-   struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */
-   /*@}*/
-
-   /** Combined modelview and projection matrix */
-   GLmatrix _ModelProjectMatrix;
-
-   /** \name Display lists */
-   struct gl_dlist_state ListState;
-
-   GLboolean ExecuteFlag;	/**< Execute GL commands? */
-   GLboolean CompileFlag;	/**< Compile GL commands into display list? */
-
-   /** Extension information */
-   struct gl_extensions Extensions;
-
-   /** Version info */
-   GLuint VersionMajor, VersionMinor;
-   char *VersionString;
-
-   /** \name State attribute stack (for glPush/PopAttrib) */
-   /*@{*/
-   GLuint AttribStackDepth;
-   struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH];
-   /*@}*/
-
-   /** \name Renderer attribute groups
-    * 
-    * We define a struct for each attribute group to make pushing and popping
-    * attributes easy.  Also it's a good organization.
-    */
-   /*@{*/
-   struct gl_accum_attrib	Accum;		/**< Accum buffer attributes */
-   struct gl_colorbuffer_attrib	Color;		/**< Color buffer attributes */
-   struct gl_current_attrib	Current;	/**< Current attributes */
-   struct gl_depthbuffer_attrib	Depth;		/**< Depth buffer attributes */
-   struct gl_eval_attrib	Eval;		/**< Eval attributes */
-   struct gl_fog_attrib		Fog;		/**< Fog attributes */
-   struct gl_hint_attrib	Hint;		/**< Hint attributes */
-   struct gl_light_attrib	Light;		/**< Light attributes */
-   struct gl_line_attrib	Line;		/**< Line attributes */
-   struct gl_list_attrib	List;		/**< List attributes */
-   struct gl_multisample_attrib Multisample;
-   struct gl_pixel_attrib	Pixel;		/**< Pixel attributes */
-   struct gl_point_attrib	Point;		/**< Point attributes */
-   struct gl_polygon_attrib	Polygon;	/**< Polygon attributes */
-   GLuint PolygonStipple[32];			/**< Polygon stipple */
-   struct gl_scissor_attrib	Scissor;	/**< Scissor attributes */
-   struct gl_stencil_attrib	Stencil;	/**< Stencil buffer attributes */
-   struct gl_texture_attrib	Texture;	/**< Texture attributes */
-   struct gl_transform_attrib	Transform;	/**< Transformation attributes */
-   struct gl_viewport_attrib	Viewport;	/**< Viewport attributes */
-   /*@}*/
-
-   /** \name Client attribute stack */
-   /*@{*/
-   GLuint ClientAttribStackDepth;
-   struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH];
-   /*@}*/
-
-   /** \name Client attribute groups */
-   /*@{*/
-   struct gl_array_attrib	Array;	/**< Vertex arrays */
-   struct gl_pixelstore_attrib	Pack;	/**< Pixel packing */
-   struct gl_pixelstore_attrib	Unpack;	/**< Pixel unpacking */
-   struct gl_pixelstore_attrib	DefaultPacking;	/**< Default params */
-   /*@}*/
-
-   /** \name Other assorted state (not pushed/popped on attribute stack) */
-   /*@{*/
-   struct gl_pixelmaps          PixelMaps;
-
-   struct gl_evaluators EvalMap;   /**< All evaluators */
-   struct gl_feedback   Feedback;  /**< Feedback */
-   struct gl_selection  Select;    /**< Selection */
-
-   struct gl_program_state Program;  /**< general program state */
-   struct gl_vertex_program_state VertexProgram;
-   struct gl_fragment_program_state FragmentProgram;
-   struct gl_geometry_program_state GeometryProgram;
-   struct gl_ati_fragment_shader_state ATIFragmentShader;
-
-   struct gl_shader_state Shader; /**< GLSL shader object state */
-   struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES];
-
-   struct gl_query_state Query;  /**< occlusion, timer queries */
-
-   struct gl_transform_feedback TransformFeedback;
-
-   struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */
-   struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */
-   /*@}*/
-
-   struct gl_meta_state *Meta;  /**< for "meta" operations */
-
-   /* GL_EXT_framebuffer_object */
-   struct gl_renderbuffer *CurrentRenderbuffer;
-
-   GLenum ErrorValue;        /**< Last error code */
-
-   /**
-    * Recognize and silence repeated error debug messages in buggy apps.
-    */
-   const char *ErrorDebugFmtString;
-   GLuint ErrorDebugCount;
-
-   GLenum RenderMode;        /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
-   GLbitfield NewState;      /**< bitwise-or of _NEW_* flags */
-
-   GLboolean ViewportInitialized;  /**< has viewport size been initialized? */
-
-   GLbitfield varying_vp_inputs;  /**< mask of VERT_BIT_* flags */
-
-   /** \name Derived state */
-   /*@{*/
-   /** Bitwise-or of DD_* flags.  Note that this bitfield may be used before
-    * state validation so they need to always be current.
-    */
-   GLbitfield _TriangleCaps;
-   GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */
-   GLfloat _EyeZDir[3];
-   GLfloat _ModelViewInvScale;
-   GLboolean _NeedEyeCoords;
-   GLboolean _ForceEyeCoords; 
-
-   GLuint TextureStateTimestamp; /**< detect changes to shared state */
-
-   struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */
-   struct gl_shine_tab *_ShineTabList;  /**< MRU list of inactive shine tables */
-   /**@}*/
-
-   struct gl_list_extensions *ListExt; /**< driver dlist extensions */
-
-   /** \name For debugging/development only */
-   /*@{*/
-   GLboolean FirstTimeCurrent;
-   /*@}*/
-
-   /** Dither disable via MESA_NO_DITHER env var */
-   GLboolean NoDither;
-
-   /** software compression/decompression supported or not */
-   GLboolean Mesa_DXTn;
-
-   GLboolean TextureFormatSupported[MESA_FORMAT_COUNT];
-
-   /** 
-    * Use dp4 (rather than mul/mad) instructions for position
-    * transformation?
-    */
-   GLboolean mvp_with_dp4;
-
-   /**
-    * \name Hooks for module contexts.  
-    *
-    * These will eventually live in the driver or elsewhere.
-    */
-   /*@{*/
-   void *swrast_context;
-   void *swsetup_context;
-   void *swtnl_context;
-   void *swtnl_im;
-   struct st_context *st;
-   void *aelt_context;
-   /*@}*/
-};
-
-
-#ifdef DEBUG
-extern int MESA_VERBOSE;
-extern int MESA_DEBUG_FLAGS;
-# define MESA_FUNCTION __FUNCTION__
-#else
-# define MESA_VERBOSE 0
-# define MESA_DEBUG_FLAGS 0
-# define MESA_FUNCTION "a function"
-# ifndef NDEBUG
-#  define NDEBUG
-# endif
-#endif
-
-
-/** The MESA_VERBOSE var is a bitmask of these flags */
-enum _verbose
-{
-   VERBOSE_VARRAY		= 0x0001,
-   VERBOSE_TEXTURE		= 0x0002,
-   VERBOSE_MATERIAL		= 0x0004,
-   VERBOSE_PIPELINE		= 0x0008,
-   VERBOSE_DRIVER		= 0x0010,
-   VERBOSE_STATE		= 0x0020,
-   VERBOSE_API			= 0x0040,
-   VERBOSE_DISPLAY_LIST		= 0x0100,
-   VERBOSE_LIGHTING		= 0x0200,
-   VERBOSE_PRIMS		= 0x0400,
-   VERBOSE_VERTS		= 0x0800,
-   VERBOSE_DISASSEM		= 0x1000,
-   VERBOSE_DRAW                 = 0x2000,
-   VERBOSE_SWAPBUFFERS          = 0x4000
-};
-
-
-/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
-enum _debug
-{
-   DEBUG_ALWAYS_FLUSH		= 0x1
-};
-
-
-
-#endif /* MTYPES_H */
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.7

+ *

+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

+ * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/**

+ * \file mtypes.h

+ * Main Mesa data structures.

+ *

+ * Please try to mark derived values with a leading underscore ('_').

+ */

+

+#ifndef MTYPES_H

+#define MTYPES_H

+

+

+#include "main/glheader.h"

+#include "main/config.h"

+#include "main/mfeatures.h"

+#include "glapi/glapi.h"

+#include "math/m_matrix.h"	/* GLmatrix */

+#include "main/simple_list.h"	/* struct simple_node */

+#include "main/formats.h"       /* MESA_FORMAT_COUNT */

+

+

+/**

+ * Color channel data type.

+ */

+#if CHAN_BITS == 8

+   typedef GLubyte GLchan;

+#define CHAN_MAX 255

+#define CHAN_MAXF 255.0F

+#define CHAN_TYPE GL_UNSIGNED_BYTE

+#elif CHAN_BITS == 16

+   typedef GLushort GLchan;

+#define CHAN_MAX 65535

+#define CHAN_MAXF 65535.0F

+#define CHAN_TYPE GL_UNSIGNED_SHORT

+#elif CHAN_BITS == 32

+   typedef GLfloat GLchan;

+#define CHAN_MAX 1.0

+#define CHAN_MAXF 1.0F

+#define CHAN_TYPE GL_FLOAT

+#else

+#error "illegal number of color channel bits"

+#endif

+

+

+/**

+ * Stencil buffer data type.

+ */

+#if STENCIL_BITS==8

+   typedef GLubyte GLstencil;

+#elif STENCIL_BITS==16

+   typedef GLushort GLstencil;

+#else

+#  error "illegal number of stencil bits"

+#endif

+

+

+/**

+ * \name 64-bit extension of GLbitfield.

+ */

+/*@{*/

+typedef GLuint64 GLbitfield64;

+

+/** Set a single bit */

+#define BITFIELD64_BIT(b)      (1ULL << (b))

+

+

+/**

+ * \name Some forward type declarations

+ */

+/*@{*/

+struct _mesa_HashTable;

+struct gl_attrib_node;

+struct gl_list_extensions;

+struct gl_meta_state;

+struct gl_pixelstore_attrib;

+struct gl_program_cache;

+struct gl_texture_format;

+struct gl_texture_image;

+struct gl_texture_object;

+struct gl_context;

+struct st_context;

+/*@}*/

+

+

+/** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */

+#define PRIM_OUTSIDE_BEGIN_END   (GL_POLYGON+1)

+#define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2)

+#define PRIM_UNKNOWN             (GL_POLYGON+3)

+

+

+/**

+ * Shader stages. Note that these will become 5 with tessellation.

+ * These MUST have the same values as gallium's PIPE_SHADER_*

+ */

+typedef enum

+{

+   MESA_SHADER_VERTEX = 0,

+   MESA_SHADER_FRAGMENT = 1,

+   MESA_SHADER_GEOMETRY = 2,

+   MESA_SHADER_TYPES = 3

+} gl_shader_type;

+

+

+

+/**

+ * Indexes for vertex program attributes.

+ * GL_NV_vertex_program aliases generic attributes over the conventional

+ * attributes.  In GL_ARB_vertex_program shader the aliasing is optional.

+ * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the

+ * generic attributes are distinct/separate).

+ */

+typedef enum

+{

+   VERT_ATTRIB_POS = 0,

+   VERT_ATTRIB_WEIGHT = 1,

+   VERT_ATTRIB_NORMAL = 2,

+   VERT_ATTRIB_COLOR0 = 3,

+   VERT_ATTRIB_COLOR1 = 4,

+   VERT_ATTRIB_FOG = 5,

+   VERT_ATTRIB_COLOR_INDEX = 6,

+   VERT_ATTRIB_POINT_SIZE = 6,  /*alias*/

+   VERT_ATTRIB_EDGEFLAG = 7,

+   VERT_ATTRIB_TEX0 = 8,

+   VERT_ATTRIB_TEX1 = 9,

+   VERT_ATTRIB_TEX2 = 10,

+   VERT_ATTRIB_TEX3 = 11,

+   VERT_ATTRIB_TEX4 = 12,

+   VERT_ATTRIB_TEX5 = 13,

+   VERT_ATTRIB_TEX6 = 14,

+   VERT_ATTRIB_TEX7 = 15,

+   VERT_ATTRIB_GENERIC0 = 16,

+   VERT_ATTRIB_GENERIC1 = 17,

+   VERT_ATTRIB_GENERIC2 = 18,

+   VERT_ATTRIB_GENERIC3 = 19,

+   VERT_ATTRIB_GENERIC4 = 20,

+   VERT_ATTRIB_GENERIC5 = 21,

+   VERT_ATTRIB_GENERIC6 = 22,

+   VERT_ATTRIB_GENERIC7 = 23,

+   VERT_ATTRIB_GENERIC8 = 24,

+   VERT_ATTRIB_GENERIC9 = 25,

+   VERT_ATTRIB_GENERIC10 = 26,

+   VERT_ATTRIB_GENERIC11 = 27,

+   VERT_ATTRIB_GENERIC12 = 28,

+   VERT_ATTRIB_GENERIC13 = 29,

+   VERT_ATTRIB_GENERIC14 = 30,

+   VERT_ATTRIB_GENERIC15 = 31,

+   VERT_ATTRIB_MAX = 32

+} gl_vert_attrib;

+

+/**

+ * Bitflags for vertex attributes.

+ * These are used in bitfields in many places.

+ */

+/*@{*/

+#define VERT_BIT_POS         (1 << VERT_ATTRIB_POS)

+#define VERT_BIT_WEIGHT      (1 << VERT_ATTRIB_WEIGHT)

+#define VERT_BIT_NORMAL      (1 << VERT_ATTRIB_NORMAL)

+#define VERT_BIT_COLOR0      (1 << VERT_ATTRIB_COLOR0)

+#define VERT_BIT_COLOR1      (1 << VERT_ATTRIB_COLOR1)

+#define VERT_BIT_FOG         (1 << VERT_ATTRIB_FOG)

+#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)

+#define VERT_BIT_EDGEFLAG    (1 << VERT_ATTRIB_EDGEFLAG)

+#define VERT_BIT_TEX0        (1 << VERT_ATTRIB_TEX0)

+#define VERT_BIT_TEX1        (1 << VERT_ATTRIB_TEX1)

+#define VERT_BIT_TEX2        (1 << VERT_ATTRIB_TEX2)

+#define VERT_BIT_TEX3        (1 << VERT_ATTRIB_TEX3)

+#define VERT_BIT_TEX4        (1 << VERT_ATTRIB_TEX4)

+#define VERT_BIT_TEX5        (1 << VERT_ATTRIB_TEX5)

+#define VERT_BIT_TEX6        (1 << VERT_ATTRIB_TEX6)

+#define VERT_BIT_TEX7        (1 << VERT_ATTRIB_TEX7)

+#define VERT_BIT_GENERIC0    (1 << VERT_ATTRIB_GENERIC0)

+#define VERT_BIT_GENERIC1    (1 << VERT_ATTRIB_GENERIC1)

+#define VERT_BIT_GENERIC2    (1 << VERT_ATTRIB_GENERIC2)

+#define VERT_BIT_GENERIC3    (1 << VERT_ATTRIB_GENERIC3)

+#define VERT_BIT_GENERIC4    (1 << VERT_ATTRIB_GENERIC4)

+#define VERT_BIT_GENERIC5    (1 << VERT_ATTRIB_GENERIC5)

+#define VERT_BIT_GENERIC6    (1 << VERT_ATTRIB_GENERIC6)

+#define VERT_BIT_GENERIC7    (1 << VERT_ATTRIB_GENERIC7)

+#define VERT_BIT_GENERIC8    (1 << VERT_ATTRIB_GENERIC8)

+#define VERT_BIT_GENERIC9    (1 << VERT_ATTRIB_GENERIC9)

+#define VERT_BIT_GENERIC10   (1 << VERT_ATTRIB_GENERIC10)

+#define VERT_BIT_GENERIC11   (1 << VERT_ATTRIB_GENERIC11)

+#define VERT_BIT_GENERIC12   (1 << VERT_ATTRIB_GENERIC12)

+#define VERT_BIT_GENERIC13   (1 << VERT_ATTRIB_GENERIC13)

+#define VERT_BIT_GENERIC14   (1 << VERT_ATTRIB_GENERIC14)

+#define VERT_BIT_GENERIC15   (1 << VERT_ATTRIB_GENERIC15)

+

+#define VERT_BIT_TEX(u)  (1 << (VERT_ATTRIB_TEX0 + (u)))

+#define VERT_BIT_GENERIC(g)  (1 << (VERT_ATTRIB_GENERIC0 + (g)))

+/*@}*/

+

+

+/**

+ * Indexes for vertex program result attributes

+ */

+typedef enum

+{

+   VERT_RESULT_HPOS = 0,

+   VERT_RESULT_COL0 = 1,

+   VERT_RESULT_COL1 = 2,

+   VERT_RESULT_FOGC = 3,

+   VERT_RESULT_TEX0 = 4,

+   VERT_RESULT_TEX1 = 5,

+   VERT_RESULT_TEX2 = 6,

+   VERT_RESULT_TEX3 = 7,

+   VERT_RESULT_TEX4 = 8,

+   VERT_RESULT_TEX5 = 9,

+   VERT_RESULT_TEX6 = 10,

+   VERT_RESULT_TEX7 = 11,

+   VERT_RESULT_PSIZ = 12,

+   VERT_RESULT_BFC0 = 13,

+   VERT_RESULT_BFC1 = 14,

+   VERT_RESULT_EDGE = 15,

+   VERT_RESULT_VAR0 = 16,  /**< shader varying */

+   VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING)

+} gl_vert_result;

+

+

+/*********************************************/

+

+/**

+ * Indexes for geometry program attributes.

+ */

+typedef enum

+{

+   GEOM_ATTRIB_POSITION = 0,

+   GEOM_ATTRIB_COLOR0 = 1,

+   GEOM_ATTRIB_COLOR1 = 2,

+   GEOM_ATTRIB_SECONDARY_COLOR0 = 3,

+   GEOM_ATTRIB_SECONDARY_COLOR1 = 4,

+   GEOM_ATTRIB_FOG_FRAG_COORD = 5,

+   GEOM_ATTRIB_POINT_SIZE = 6,

+   GEOM_ATTRIB_CLIP_VERTEX = 7,

+   GEOM_ATTRIB_PRIMITIVE_ID = 8,

+   GEOM_ATTRIB_TEX_COORD = 9,

+

+   GEOM_ATTRIB_VAR0 = 16,

+   GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING)

+} gl_geom_attrib;

+

+/**

+ * Bitflags for geometry attributes.

+ * These are used in bitfields in many places.

+ */

+/*@{*/

+#define GEOM_BIT_COLOR0      (1 << GEOM_ATTRIB_COLOR0)

+#define GEOM_BIT_COLOR1      (1 << GEOM_ATTRIB_COLOR1)

+#define GEOM_BIT_SCOLOR0     (1 << GEOM_ATTRIB_SECONDARY_COLOR0)

+#define GEOM_BIT_SCOLOR1     (1 << GEOM_ATTRIB_SECONDARY_COLOR1)

+#define GEOM_BIT_TEX_COORD   (1 << GEOM_ATTRIB_TEX_COORD)

+#define GEOM_BIT_FOG_COORD   (1 << GEOM_ATTRIB_FOG_FRAG_COORD)

+#define GEOM_BIT_POSITION    (1 << GEOM_ATTRIB_POSITION)

+#define GEOM_BIT_POINT_SIDE  (1 << GEOM_ATTRIB_POINT_SIZE)

+#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)

+#define GEOM_BIT_PRIM_ID     (1 << GEOM_ATTRIB_PRIMITIVE_ID)

+#define GEOM_BIT_VAR0        (1 << GEOM_ATTRIB_VAR0)

+

+#define GEOM_BIT_VAR(g)  (1 << (GEOM_BIT_VAR0 + (g)))

+/*@}*/

+

+

+/**

+ * Indexes for geometry program result attributes

+ */

+typedef enum

+{

+   GEOM_RESULT_POS  = 0,

+   GEOM_RESULT_COL0  = 1,

+   GEOM_RESULT_COL1  = 2,

+   GEOM_RESULT_SCOL0 = 3,

+   GEOM_RESULT_SCOL1 = 4,

+   GEOM_RESULT_FOGC = 5,

+   GEOM_RESULT_TEX0 = 6,

+   GEOM_RESULT_TEX1 = 7,

+   GEOM_RESULT_TEX2 = 8,

+   GEOM_RESULT_TEX3 = 9,

+   GEOM_RESULT_TEX4 = 10,

+   GEOM_RESULT_TEX5 = 11,

+   GEOM_RESULT_TEX6 = 12,

+   GEOM_RESULT_TEX7 = 13,

+   GEOM_RESULT_PSIZ = 14,

+   GEOM_RESULT_CLPV = 15,

+   GEOM_RESULT_PRID = 16,

+   GEOM_RESULT_LAYR = 17,

+   GEOM_RESULT_VAR0 = 18,  /**< shader varying, should really be 16 */

+   /* ### we need to -2 because var0 is 18 instead 16 like in the others */

+   GEOM_RESULT_MAX  =  (GEOM_RESULT_VAR0 + MAX_VARYING - 2)

+} gl_geom_result;

+

+

+/**

+ * Indexes for fragment program input attributes.

+ */

+typedef enum

+{

+   FRAG_ATTRIB_WPOS = 0,

+   FRAG_ATTRIB_COL0 = 1,

+   FRAG_ATTRIB_COL1 = 2,

+   FRAG_ATTRIB_FOGC = 3,

+   FRAG_ATTRIB_TEX0 = 4,

+   FRAG_ATTRIB_TEX1 = 5,

+   FRAG_ATTRIB_TEX2 = 6,

+   FRAG_ATTRIB_TEX3 = 7,

+   FRAG_ATTRIB_TEX4 = 8,

+   FRAG_ATTRIB_TEX5 = 9,

+   FRAG_ATTRIB_TEX6 = 10,

+   FRAG_ATTRIB_TEX7 = 11,

+   FRAG_ATTRIB_FACE = 12,  /**< front/back face */

+   FRAG_ATTRIB_PNTC = 13,  /**< sprite/point coord */

+   FRAG_ATTRIB_VAR0 = 14,  /**< shader varying */

+   FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING)

+} gl_frag_attrib;

+

+/**

+ * Bitflags for fragment program input attributes.

+ */

+/*@{*/

+#define FRAG_BIT_WPOS  (1 << FRAG_ATTRIB_WPOS)

+#define FRAG_BIT_COL0  (1 << FRAG_ATTRIB_COL0)

+#define FRAG_BIT_COL1  (1 << FRAG_ATTRIB_COL1)

+#define FRAG_BIT_FOGC  (1 << FRAG_ATTRIB_FOGC)

+#define FRAG_BIT_FACE  (1 << FRAG_ATTRIB_FACE)

+#define FRAG_BIT_PNTC  (1 << FRAG_ATTRIB_PNTC)

+#define FRAG_BIT_TEX0  (1 << FRAG_ATTRIB_TEX0)

+#define FRAG_BIT_TEX1  (1 << FRAG_ATTRIB_TEX1)

+#define FRAG_BIT_TEX2  (1 << FRAG_ATTRIB_TEX2)

+#define FRAG_BIT_TEX3  (1 << FRAG_ATTRIB_TEX3)

+#define FRAG_BIT_TEX4  (1 << FRAG_ATTRIB_TEX4)

+#define FRAG_BIT_TEX5  (1 << FRAG_ATTRIB_TEX5)

+#define FRAG_BIT_TEX6  (1 << FRAG_ATTRIB_TEX6)

+#define FRAG_BIT_TEX7  (1 << FRAG_ATTRIB_TEX7)

+#define FRAG_BIT_VAR0  (1 << FRAG_ATTRIB_VAR0)

+

+#define FRAG_BIT_TEX(U)  (FRAG_BIT_TEX0 << (U))

+#define FRAG_BIT_VAR(V)  (FRAG_BIT_VAR0 << (V))

+

+#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0|	\

+			   FRAG_BIT_TEX1|	\

+			   FRAG_BIT_TEX2|	\

+			   FRAG_BIT_TEX3|	\

+			   FRAG_BIT_TEX4|	\

+			   FRAG_BIT_TEX5|	\

+			   FRAG_BIT_TEX6|	\

+			   FRAG_BIT_TEX7)

+/*@}*/

+

+

+/**

+ * Fragment program results

+ */

+typedef enum

+{

+   FRAG_RESULT_DEPTH = 0,

+   FRAG_RESULT_STENCIL = 1,

+   FRAG_RESULT_COLOR = 2,

+   FRAG_RESULT_DATA0 = 3,

+   FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS)

+} gl_frag_result;

+

+

+/**

+ * Indexes for all renderbuffers

+ */

+typedef enum

+{

+   /* the four standard color buffers */

+   BUFFER_FRONT_LEFT,

+   BUFFER_BACK_LEFT,

+   BUFFER_FRONT_RIGHT,

+   BUFFER_BACK_RIGHT,

+   BUFFER_DEPTH,

+   BUFFER_STENCIL,

+   BUFFER_ACCUM,

+   /* optional aux buffer */

+   BUFFER_AUX0,

+   /* generic renderbuffers */

+   BUFFER_COLOR0,

+   BUFFER_COLOR1,

+   BUFFER_COLOR2,

+   BUFFER_COLOR3,

+   BUFFER_COLOR4,

+   BUFFER_COLOR5,

+   BUFFER_COLOR6,

+   BUFFER_COLOR7,

+   BUFFER_COUNT

+} gl_buffer_index;

+

+/**

+ * Bit flags for all renderbuffers

+ */

+#define BUFFER_BIT_FRONT_LEFT   (1 << BUFFER_FRONT_LEFT)

+#define BUFFER_BIT_BACK_LEFT    (1 << BUFFER_BACK_LEFT)

+#define BUFFER_BIT_FRONT_RIGHT  (1 << BUFFER_FRONT_RIGHT)

+#define BUFFER_BIT_BACK_RIGHT   (1 << BUFFER_BACK_RIGHT)

+#define BUFFER_BIT_AUX0         (1 << BUFFER_AUX0)

+#define BUFFER_BIT_AUX1         (1 << BUFFER_AUX1)

+#define BUFFER_BIT_AUX2         (1 << BUFFER_AUX2)

+#define BUFFER_BIT_AUX3         (1 << BUFFER_AUX3)

+#define BUFFER_BIT_DEPTH        (1 << BUFFER_DEPTH)

+#define BUFFER_BIT_STENCIL      (1 << BUFFER_STENCIL)

+#define BUFFER_BIT_ACCUM        (1 << BUFFER_ACCUM)

+#define BUFFER_BIT_COLOR0       (1 << BUFFER_COLOR0)

+#define BUFFER_BIT_COLOR1       (1 << BUFFER_COLOR1)

+#define BUFFER_BIT_COLOR2       (1 << BUFFER_COLOR2)

+#define BUFFER_BIT_COLOR3       (1 << BUFFER_COLOR3)

+#define BUFFER_BIT_COLOR4       (1 << BUFFER_COLOR4)

+#define BUFFER_BIT_COLOR5       (1 << BUFFER_COLOR5)

+#define BUFFER_BIT_COLOR6       (1 << BUFFER_COLOR6)

+#define BUFFER_BIT_COLOR7       (1 << BUFFER_COLOR7)

+

+/**

+ * Mask of all the color buffer bits (but not accum).

+ */

+#define BUFFER_BITS_COLOR  (BUFFER_BIT_FRONT_LEFT | \

+                            BUFFER_BIT_BACK_LEFT | \

+                            BUFFER_BIT_FRONT_RIGHT | \

+                            BUFFER_BIT_BACK_RIGHT | \

+                            BUFFER_BIT_AUX0 | \

+                            BUFFER_BIT_COLOR0 | \

+                            BUFFER_BIT_COLOR1 | \

+                            BUFFER_BIT_COLOR2 | \

+                            BUFFER_BIT_COLOR3 | \

+                            BUFFER_BIT_COLOR4 | \

+                            BUFFER_BIT_COLOR5 | \

+                            BUFFER_BIT_COLOR6 | \

+                            BUFFER_BIT_COLOR7)

+

+

+/**

+ * Framebuffer configuration (aka visual / pixelformat)

+ * Note: some of these fields should be boolean, but it appears that

+ * code in drivers/dri/common/util.c requires int-sized fields.

+ */

+struct gl_config

+{

+   GLboolean rgbMode;

+   GLboolean floatMode;

+   GLboolean colorIndexMode;  /* XXX is this used anywhere? */

+   GLuint doubleBufferMode;

+   GLuint stereoMode;

+

+   GLboolean haveAccumBuffer;

+   GLboolean haveDepthBuffer;

+   GLboolean haveStencilBuffer;

+

+   GLint redBits, greenBits, blueBits, alphaBits;	/* bits per comp */

+   GLuint redMask, greenMask, blueMask, alphaMask;

+   GLint rgbBits;		/* total bits for rgb */

+   GLint indexBits;		/* total bits for colorindex */

+

+   GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;

+   GLint depthBits;

+   GLint stencilBits;

+

+   GLint numAuxBuffers;

+

+   GLint level;

+

+   /* EXT_visual_rating / GLX 1.2 */

+   GLint visualRating;

+

+   /* EXT_visual_info / GLX 1.2 */

+   GLint transparentPixel;

+   /*    colors are floats scaled to ints */

+   GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;

+   GLint transparentIndex;

+

+   /* ARB_multisample / SGIS_multisample */

+   GLint sampleBuffers;

+   GLint samples;

+

+   /* SGIX_pbuffer / GLX 1.3 */

+   GLint maxPbufferWidth;

+   GLint maxPbufferHeight;

+   GLint maxPbufferPixels;

+   GLint optimalPbufferWidth;   /* Only for SGIX_pbuffer. */

+   GLint optimalPbufferHeight;  /* Only for SGIX_pbuffer. */

+

+   /* OML_swap_method */

+   GLint swapMethod;

+

+   /* EXT_texture_from_pixmap */

+   GLint bindToTextureRgb;

+   GLint bindToTextureRgba;

+   GLint bindToMipmapTexture;

+   GLint bindToTextureTargets;

+   GLint yInverted;

+

+   /* EXT_framebuffer_sRGB */

+   GLint sRGBCapable;

+};

+

+

+/**

+ * Data structure for color tables

+ */

+struct gl_color_table

+{

+   GLenum InternalFormat;      /**< The user-specified format */

+   GLenum _BaseFormat;         /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */

+   GLuint Size;                /**< number of entries in table */

+   GLfloat *TableF;            /**< Color table, floating point values */

+   GLubyte *TableUB;           /**< Color table, ubyte values */

+   GLubyte RedSize;

+   GLubyte GreenSize;

+   GLubyte BlueSize;

+   GLubyte AlphaSize;

+   GLubyte LuminanceSize;

+   GLubyte IntensitySize;

+};

+

+

+/**

+ * \name Bit flags used for updating material values.

+ */

+/*@{*/

+#define MAT_ATTRIB_FRONT_AMBIENT           0 

+#define MAT_ATTRIB_BACK_AMBIENT            1

+#define MAT_ATTRIB_FRONT_DIFFUSE           2 

+#define MAT_ATTRIB_BACK_DIFFUSE            3

+#define MAT_ATTRIB_FRONT_SPECULAR          4 

+#define MAT_ATTRIB_BACK_SPECULAR           5

+#define MAT_ATTRIB_FRONT_EMISSION          6

+#define MAT_ATTRIB_BACK_EMISSION           7

+#define MAT_ATTRIB_FRONT_SHININESS         8

+#define MAT_ATTRIB_BACK_SHININESS          9

+#define MAT_ATTRIB_FRONT_INDEXES           10

+#define MAT_ATTRIB_BACK_INDEXES            11

+#define MAT_ATTRIB_MAX                     12

+

+#define MAT_ATTRIB_AMBIENT(f)  (MAT_ATTRIB_FRONT_AMBIENT+(f))  

+#define MAT_ATTRIB_DIFFUSE(f)  (MAT_ATTRIB_FRONT_DIFFUSE+(f))  

+#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f)) 

+#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f)) 

+#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))

+#define MAT_ATTRIB_INDEXES(f)  (MAT_ATTRIB_FRONT_INDEXES+(f))  

+

+#define MAT_INDEX_AMBIENT  0

+#define MAT_INDEX_DIFFUSE  1

+#define MAT_INDEX_SPECULAR 2

+

+#define MAT_BIT_FRONT_AMBIENT         (1<<MAT_ATTRIB_FRONT_AMBIENT)

+#define MAT_BIT_BACK_AMBIENT          (1<<MAT_ATTRIB_BACK_AMBIENT)

+#define MAT_BIT_FRONT_DIFFUSE         (1<<MAT_ATTRIB_FRONT_DIFFUSE)

+#define MAT_BIT_BACK_DIFFUSE          (1<<MAT_ATTRIB_BACK_DIFFUSE)

+#define MAT_BIT_FRONT_SPECULAR        (1<<MAT_ATTRIB_FRONT_SPECULAR)

+#define MAT_BIT_BACK_SPECULAR         (1<<MAT_ATTRIB_BACK_SPECULAR)

+#define MAT_BIT_FRONT_EMISSION        (1<<MAT_ATTRIB_FRONT_EMISSION)

+#define MAT_BIT_BACK_EMISSION         (1<<MAT_ATTRIB_BACK_EMISSION)

+#define MAT_BIT_FRONT_SHININESS       (1<<MAT_ATTRIB_FRONT_SHININESS)

+#define MAT_BIT_BACK_SHININESS        (1<<MAT_ATTRIB_BACK_SHININESS)

+#define MAT_BIT_FRONT_INDEXES         (1<<MAT_ATTRIB_FRONT_INDEXES)

+#define MAT_BIT_BACK_INDEXES          (1<<MAT_ATTRIB_BACK_INDEXES)

+

+

+#define FRONT_MATERIAL_BITS	(MAT_BIT_FRONT_EMISSION | 	\

+				 MAT_BIT_FRONT_AMBIENT |	\

+				 MAT_BIT_FRONT_DIFFUSE | 	\

+				 MAT_BIT_FRONT_SPECULAR |	\

+				 MAT_BIT_FRONT_SHININESS | 	\

+				 MAT_BIT_FRONT_INDEXES)

+

+#define BACK_MATERIAL_BITS	(MAT_BIT_BACK_EMISSION |	\

+				 MAT_BIT_BACK_AMBIENT |		\

+				 MAT_BIT_BACK_DIFFUSE |		\

+				 MAT_BIT_BACK_SPECULAR |	\

+				 MAT_BIT_BACK_SHININESS |	\

+				 MAT_BIT_BACK_INDEXES)

+

+#define ALL_MATERIAL_BITS	(FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)

+/*@}*/

+

+

+#define EXP_TABLE_SIZE 512	/**< Specular exponent lookup table sizes */

+#define SHINE_TABLE_SIZE 256	/**< Material shininess lookup table sizes */

+

+/**

+ * Material shininess lookup table.

+ */

+struct gl_shine_tab

+{

+   struct gl_shine_tab *next, *prev;

+   GLfloat tab[SHINE_TABLE_SIZE+1];

+   GLfloat shininess;

+   GLuint refcount;

+};

+

+

+/**

+ * Light source state.

+ */

+struct gl_light

+{

+   struct gl_light *next;	/**< double linked list with sentinel */

+   struct gl_light *prev;

+

+   GLfloat Ambient[4];		/**< ambient color */

+   GLfloat Diffuse[4];		/**< diffuse color */

+   GLfloat Specular[4];		/**< specular color */

+   GLfloat EyePosition[4];	/**< position in eye coordinates */

+   GLfloat SpotDirection[4];	/**< spotlight direction in eye coordinates */

+   GLfloat SpotExponent;

+   GLfloat SpotCutoff;		/**< in degrees */

+   GLfloat _CosCutoffNeg;	/**< = cos(SpotCutoff) */

+   GLfloat _CosCutoff;		/**< = MAX(0, cos(SpotCutoff)) */

+   GLfloat ConstantAttenuation;

+   GLfloat LinearAttenuation;

+   GLfloat QuadraticAttenuation;

+   GLboolean Enabled;		/**< On/off flag */

+

+   /** 

+    * \name Derived fields

+    */

+   /*@{*/

+   GLbitfield _Flags;		/**< State */

+

+   GLfloat _Position[4];	/**< position in eye/obj coordinates */

+   GLfloat _VP_inf_norm[3];	/**< Norm direction to infinite light */

+   GLfloat _h_inf_norm[3];	/**< Norm( _VP_inf_norm + <0,0,1> ) */

+   GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */

+   GLfloat _VP_inf_spot_attenuation;

+

+   GLfloat _SpotExpTable[EXP_TABLE_SIZE][2];  /**< to replace a pow() call */

+   GLfloat _MatAmbient[2][3];	/**< material ambient * light ambient */

+   GLfloat _MatDiffuse[2][3];	/**< material diffuse * light diffuse */

+   GLfloat _MatSpecular[2][3];	/**< material spec * light specular */

+   GLfloat _dli;		/**< CI diffuse light intensity */

+   GLfloat _sli;		/**< CI specular light intensity */

+   /*@}*/

+};

+

+

+/**

+ * Light model state.

+ */

+struct gl_lightmodel

+{

+   GLfloat Ambient[4];		/**< ambient color */

+   GLboolean LocalViewer;	/**< Local (or infinite) view point? */

+   GLboolean TwoSide;		/**< Two (or one) sided lighting? */

+   GLenum ColorControl;		/**< either GL_SINGLE_COLOR

+				 *    or GL_SEPARATE_SPECULAR_COLOR */

+};

+

+

+/**

+ * Material state.

+ */

+struct gl_material

+{

+   GLfloat Attrib[MAT_ATTRIB_MAX][4];

+};

+

+

+/**

+ * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)

+ */

+struct gl_accum_attrib

+{

+   GLfloat ClearColor[4];	/**< Accumulation buffer clear color */

+};

+

+

+/**

+ * Color buffer attribute group (GL_COLOR_BUFFER_BIT).

+ */

+struct gl_colorbuffer_attrib

+{

+   GLuint ClearIndex;			/**< Index to use for glClear */

+   GLclampf ClearColor[4];		/**< Color to use for glClear */

+

+   GLuint IndexMask;			/**< Color index write mask */

+   GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */

+

+   GLenum DrawBuffer[MAX_DRAW_BUFFERS];	/**< Which buffer to draw into */

+

+   /** 

+    * \name alpha testing

+    */

+   /*@{*/

+   GLboolean AlphaEnabled;		/**< Alpha test enabled flag */

+   GLenum AlphaFunc;			/**< Alpha test function */

+   GLclampf AlphaRef;			/**< Alpha reference value */

+   /*@}*/

+

+   /** 

+    * \name Blending

+    */

+   /*@{*/

+   GLbitfield BlendEnabled;		/**< Per-buffer blend enable flags */

+   GLfloat BlendColor[4];		/**< Blending color */

+   struct

+   {

+      GLenum SrcRGB;             /**< RGB blend source term */

+      GLenum DstRGB;             /**< RGB blend dest term */

+      GLenum SrcA;               /**< Alpha blend source term */

+      GLenum DstA;               /**< Alpha blend dest term */

+      GLenum EquationRGB;        /**< GL_ADD, GL_SUBTRACT, etc. */

+      GLenum EquationA;          /**< GL_ADD, GL_SUBTRACT, etc. */

+   } Blend[MAX_DRAW_BUFFERS];

+   /** Are the blend func terms currently different for each buffer/target? */

+   GLboolean _BlendFuncPerBuffer;

+   /** Are the blend equations currently different for each buffer/target? */

+   GLboolean _BlendEquationPerBuffer;

+   /*@}*/

+

+   /** 

+    * \name Logic op

+    */

+   /*@{*/

+   GLenum LogicOp;			/**< Logic operator */

+   GLboolean IndexLogicOpEnabled;	/**< Color index logic op enabled flag */

+   GLboolean ColorLogicOpEnabled;	/**< RGBA logic op enabled flag */

+   GLboolean _LogicOpEnabled;		/**< RGBA logic op + EXT_blend_logic_op enabled flag */

+   /*@}*/

+

+   GLboolean DitherFlag;		/**< Dither enable flag */

+

+   GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */

+   GLenum ClampReadColor;     /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */

+

+   GLboolean sRGBEnabled;	/**< Framebuffer sRGB blending/updating requested */

+};

+

+

+/**

+ * Current attribute group (GL_CURRENT_BIT).

+ */

+struct gl_current_attrib

+{

+   /**

+    * \name Current vertex attributes.

+    * \note Values are valid only after FLUSH_VERTICES has been called.

+    * \note Index and Edgeflag current values are stored as floats in the 

+    * SIX and SEVEN attribute slots.

+    */

+   GLfloat Attrib[VERT_ATTRIB_MAX][4];	/**< Position, color, texcoords, etc */

+

+   /**

+    * \name Current raster position attributes (always valid).

+    * \note This set of attributes is very similar to the SWvertex struct.

+    */

+   /*@{*/

+   GLfloat RasterPos[4];

+   GLfloat RasterDistance;

+   GLfloat RasterColor[4];

+   GLfloat RasterSecondaryColor[4];

+   GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4];

+   GLboolean RasterPosValid;

+   /*@}*/

+};

+

+

+/**

+ * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).

+ */

+struct gl_depthbuffer_attrib

+{

+   GLenum Func;			/**< Function for depth buffer compare */

+   GLclampd Clear;		/**< Value to clear depth buffer to */

+   GLboolean Test;		/**< Depth buffering enabled flag */

+   GLboolean Mask;		/**< Depth buffer writable? */

+   GLboolean BoundsTest;        /**< GL_EXT_depth_bounds_test */

+   GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */

+};

+

+

+/**

+ * Evaluator attribute group (GL_EVAL_BIT).

+ */

+struct gl_eval_attrib

+{

+   /**

+    * \name Enable bits 

+    */

+   /*@{*/

+   GLboolean Map1Color4;

+   GLboolean Map1Index;

+   GLboolean Map1Normal;

+   GLboolean Map1TextureCoord1;

+   GLboolean Map1TextureCoord2;

+   GLboolean Map1TextureCoord3;

+   GLboolean Map1TextureCoord4;

+   GLboolean Map1Vertex3;

+   GLboolean Map1Vertex4;

+   GLboolean Map1Attrib[16];  /* GL_NV_vertex_program */

+   GLboolean Map2Color4;

+   GLboolean Map2Index;

+   GLboolean Map2Normal;

+   GLboolean Map2TextureCoord1;

+   GLboolean Map2TextureCoord2;

+   GLboolean Map2TextureCoord3;

+   GLboolean Map2TextureCoord4;

+   GLboolean Map2Vertex3;

+   GLboolean Map2Vertex4;

+   GLboolean Map2Attrib[16];  /* GL_NV_vertex_program */

+   GLboolean AutoNormal;

+   /*@}*/

+   

+   /**

+    * \name Map Grid endpoints and divisions and calculated du values

+    */

+   /*@{*/

+   GLint MapGrid1un;

+   GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du;

+   GLint MapGrid2un, MapGrid2vn;

+   GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du;

+   GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv;

+   /*@}*/

+};

+

+

+/**

+ * Fog attribute group (GL_FOG_BIT).

+ */

+struct gl_fog_attrib

+{

+   GLboolean Enabled;		/**< Fog enabled flag */

+   GLfloat Color[4];		/**< Fog color */

+   GLfloat Density;		/**< Density >= 0.0 */

+   GLfloat Start;		/**< Start distance in eye coords */

+   GLfloat End;			/**< End distance in eye coords */

+   GLfloat Index;		/**< Fog index */

+   GLenum Mode;			/**< Fog mode */

+   GLboolean ColorSumEnabled;

+   GLenum FogCoordinateSource;  /**< GL_EXT_fog_coord */

+   GLfloat _Scale;		/**< (End == Start) ? 1.0 : 1.0 / (End - Start) */

+};

+

+

+/**

+ * \brief Layout qualifiers for gl_FragDepth.

+ *

+ * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with

+ * a layout qualifier.

+ *

+ * \see enum ir_depth_layout

+ */

+enum gl_frag_depth_layout {

+    FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */

+    FRAG_DEPTH_LAYOUT_ANY,

+    FRAG_DEPTH_LAYOUT_GREATER,

+    FRAG_DEPTH_LAYOUT_LESS,

+    FRAG_DEPTH_LAYOUT_UNCHANGED

+};

+

+

+/** 

+ * Hint attribute group (GL_HINT_BIT).

+ * 

+ * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.

+ */

+struct gl_hint_attrib

+{

+   GLenum PerspectiveCorrection;

+   GLenum PointSmooth;

+   GLenum LineSmooth;

+   GLenum PolygonSmooth;

+   GLenum Fog;

+   GLenum ClipVolumeClipping;   /**< GL_EXT_clip_volume_hint */

+   GLenum TextureCompression;   /**< GL_ARB_texture_compression */

+   GLenum GenerateMipmap;       /**< GL_SGIS_generate_mipmap */

+   GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */

+};

+

+/**

+ * Light state flags.

+ */

+/*@{*/

+#define LIGHT_SPOT         0x1

+#define LIGHT_LOCAL_VIEWER 0x2

+#define LIGHT_POSITIONAL   0x4

+#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)

+/*@}*/

+

+

+/**

+ * Lighting attribute group (GL_LIGHT_BIT).

+ */

+struct gl_light_attrib

+{

+   struct gl_light Light[MAX_LIGHTS];	/**< Array of light sources */

+   struct gl_lightmodel Model;		/**< Lighting model */

+

+   /**

+    * Must flush FLUSH_VERTICES before referencing:

+    */

+   /*@{*/

+   struct gl_material Material; 	/**< Includes front & back values */

+   /*@}*/

+

+   GLboolean Enabled;			/**< Lighting enabled flag */

+   GLenum ShadeModel;			/**< GL_FLAT or GL_SMOOTH */

+   GLenum ProvokingVertex;              /**< GL_EXT_provoking_vertex */

+   GLenum ColorMaterialFace;		/**< GL_FRONT, BACK or FRONT_AND_BACK */

+   GLenum ColorMaterialMode;		/**< GL_AMBIENT, GL_DIFFUSE, etc */

+   GLbitfield ColorMaterialBitmask;	/**< bitmask formed from Face and Mode */

+   GLboolean ColorMaterialEnabled;

+   GLenum ClampVertexColor;

+

+   struct gl_light EnabledList;         /**< List sentinel */

+

+   /** 

+    * Derived state for optimizations: 

+    */

+   /*@{*/

+   GLboolean _NeedEyeCoords;		

+   GLboolean _NeedVertices;		/**< Use fast shader? */

+   GLbitfield _Flags;		        /**< LIGHT_* flags, see above */

+   GLfloat _BaseColor[2][3];

+   /*@}*/

+};

+

+

+/**

+ * Line attribute group (GL_LINE_BIT).

+ */

+struct gl_line_attrib

+{

+   GLboolean SmoothFlag;	/**< GL_LINE_SMOOTH enabled? */

+   GLboolean StippleFlag;	/**< GL_LINE_STIPPLE enabled? */

+   GLushort StipplePattern;	/**< Stipple pattern */

+   GLint StippleFactor;		/**< Stipple repeat factor */

+   GLfloat Width;		/**< Line width */

+};

+

+

+/**

+ * Display list attribute group (GL_LIST_BIT).

+ */

+struct gl_list_attrib

+{

+   GLuint ListBase;

+};

+

+

+/**

+ * Multisample attribute group (GL_MULTISAMPLE_BIT).

+ */

+struct gl_multisample_attrib

+{

+   GLboolean Enabled;

+   GLboolean _Enabled;   /**< true if Enabled and multisample buffer */

+   GLboolean SampleAlphaToCoverage;

+   GLboolean SampleAlphaToOne;

+   GLboolean SampleCoverage;

+   GLfloat SampleCoverageValue;

+   GLboolean SampleCoverageInvert;

+};

+

+

+/**

+ * A pixelmap (see glPixelMap)

+ */

+struct gl_pixelmap

+{

+   GLint Size;

+   GLfloat Map[MAX_PIXEL_MAP_TABLE];

+   GLubyte Map8[MAX_PIXEL_MAP_TABLE];  /**< converted to 8-bit color */

+};

+

+

+/**

+ * Collection of all pixelmaps

+ */

+struct gl_pixelmaps

+{

+   struct gl_pixelmap RtoR;  /**< i.e. GL_PIXEL_MAP_R_TO_R */

+   struct gl_pixelmap GtoG;

+   struct gl_pixelmap BtoB;

+   struct gl_pixelmap AtoA;

+   struct gl_pixelmap ItoR;

+   struct gl_pixelmap ItoG;

+   struct gl_pixelmap ItoB;

+   struct gl_pixelmap ItoA;

+   struct gl_pixelmap ItoI;

+   struct gl_pixelmap StoS;

+};

+

+

+/**

+ * Pixel attribute group (GL_PIXEL_MODE_BIT).

+ */

+struct gl_pixel_attrib

+{

+   GLenum ReadBuffer;		/**< source buffer for glRead/CopyPixels() */

+

+   /*--- Begin Pixel Transfer State ---*/

+   /* Fields are in the order in which they're applied... */

+

+   /** Scale & Bias (index shift, offset) */

+   /*@{*/

+   GLfloat RedBias, RedScale;

+   GLfloat GreenBias, GreenScale;

+   GLfloat BlueBias, BlueScale;

+   GLfloat AlphaBias, AlphaScale;

+   GLfloat DepthBias, DepthScale;

+   GLint IndexShift, IndexOffset;

+   /*@}*/

+

+   /* Pixel Maps */

+   /* Note: actual pixel maps are not part of this attrib group */

+   GLboolean MapColorFlag;

+   GLboolean MapStencilFlag;

+

+   /*--- End Pixel Transfer State ---*/

+

+   /** glPixelZoom */

+   GLfloat ZoomX, ZoomY;

+

+   /** GL_SGI_texture_color_table */

+   GLfloat TextureColorTableScale[4]; /**< RGBA */

+   GLfloat TextureColorTableBias[4];  /**< RGBA */

+};

+

+

+/**

+ * Point attribute group (GL_POINT_BIT).

+ */

+struct gl_point_attrib

+{

+   GLboolean SmoothFlag;	/**< True if GL_POINT_SMOOTH is enabled */

+   GLfloat Size;		/**< User-specified point size */

+   GLfloat Params[3];		/**< GL_EXT_point_parameters */

+   GLfloat MinSize, MaxSize;	/**< GL_EXT_point_parameters */

+   GLfloat Threshold;		/**< GL_EXT_point_parameters */

+   GLboolean _Attenuated;	/**< True if Params != [1, 0, 0] */

+   GLboolean PointSprite;	/**< GL_NV/ARB_point_sprite */

+   GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/

+   GLenum SpriteRMode;		/**< GL_NV_point_sprite (only!) */

+   GLenum SpriteOrigin;		/**< GL_ARB_point_sprite */

+};

+

+

+/**

+ * Polygon attribute group (GL_POLYGON_BIT).

+ */

+struct gl_polygon_attrib

+{

+   GLenum FrontFace;		/**< Either GL_CW or GL_CCW */

+   GLenum FrontMode;		/**< Either GL_POINT, GL_LINE or GL_FILL */

+   GLenum BackMode;		/**< Either GL_POINT, GL_LINE or GL_FILL */

+   GLboolean _FrontBit;		/**< 0=GL_CCW, 1=GL_CW */

+   GLboolean CullFlag;		/**< Culling on/off flag */

+   GLboolean SmoothFlag;	/**< True if GL_POLYGON_SMOOTH is enabled */

+   GLboolean StippleFlag;	/**< True if GL_POLYGON_STIPPLE is enabled */

+   GLenum CullFaceMode;		/**< Culling mode GL_FRONT or GL_BACK */

+   GLfloat OffsetFactor;	/**< Polygon offset factor, from user */

+   GLfloat OffsetUnits;		/**< Polygon offset units, from user */

+   GLboolean OffsetPoint;	/**< Offset in GL_POINT mode */

+   GLboolean OffsetLine;	/**< Offset in GL_LINE mode */

+   GLboolean OffsetFill;	/**< Offset in GL_FILL mode */

+};

+

+

+/**

+ * Scissor attributes (GL_SCISSOR_BIT).

+ */

+struct gl_scissor_attrib

+{

+   GLboolean Enabled;		/**< Scissor test enabled? */

+   GLint X, Y;			/**< Lower left corner of box */

+   GLsizei Width, Height;	/**< Size of box */

+};

+

+

+/**

+ * Stencil attribute group (GL_STENCIL_BUFFER_BIT).

+ *

+ * Three sets of stencil data are tracked so that OpenGL 2.0,

+ * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported

+ * simultaneously.  In each of the stencil state arrays, element 0 corresponds

+ * to GL_FRONT.  Element 1 corresponds to the OpenGL 2.0 /

+ * GL_ATI_separate_stencil GL_BACK state.  Element 2 corresponds to the

+ * GL_EXT_stencil_two_side GL_BACK state.

+ *

+ * The derived value \c _BackFace is either 1 or 2 depending on whether or

+ * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.

+ *

+ * The derived value \c _TestTwoSide is set when the front-face and back-face

+ * stencil state are different.

+ */

+struct gl_stencil_attrib

+{

+   GLboolean Enabled;		/**< Enabled flag */

+   GLboolean TestTwoSide;	/**< GL_EXT_stencil_two_side */

+   GLubyte ActiveFace;		/**< GL_EXT_stencil_two_side (0 or 2) */

+   GLboolean _Enabled;          /**< Enabled and stencil buffer present */

+   GLboolean _TestTwoSide;

+   GLubyte _BackFace;           /**< Current back stencil state (1 or 2) */

+   GLenum Function[3];		/**< Stencil function */

+   GLenum FailFunc[3];		/**< Fail function */

+   GLenum ZPassFunc[3];		/**< Depth buffer pass function */

+   GLenum ZFailFunc[3];		/**< Depth buffer fail function */

+   GLint Ref[3];		/**< Reference value */

+   GLuint ValueMask[3];		/**< Value mask */

+   GLuint WriteMask[3];		/**< Write mask */

+   GLuint Clear;		/**< Clear value */

+};

+

+

+/**

+ * An index for each type of texture object.  These correspond to the GL

+ * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.

+ * Note: the order is from highest priority to lowest priority.

+ */

+typedef enum

+{

+   TEXTURE_2D_ARRAY_INDEX,

+   TEXTURE_1D_ARRAY_INDEX,

+   TEXTURE_CUBE_INDEX,

+   TEXTURE_3D_INDEX,

+   TEXTURE_RECT_INDEX,

+   TEXTURE_2D_INDEX,

+   TEXTURE_1D_INDEX,

+   NUM_TEXTURE_TARGETS

+} gl_texture_index;

+

+

+/**

+ * Bit flags for each type of texture object

+ * Used for Texture.Unit[]._ReallyEnabled flags.

+ */

+/*@{*/

+#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)

+#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)

+#define TEXTURE_CUBE_BIT     (1 << TEXTURE_CUBE_INDEX)

+#define TEXTURE_3D_BIT       (1 << TEXTURE_3D_INDEX)

+#define TEXTURE_RECT_BIT     (1 << TEXTURE_RECT_INDEX)

+#define TEXTURE_2D_BIT       (1 << TEXTURE_2D_INDEX)

+#define TEXTURE_1D_BIT       (1 << TEXTURE_1D_INDEX)

+/*@}*/

+

+

+/**

+ * TexGenEnabled flags.

+ */

+/*@{*/

+#define S_BIT 1

+#define T_BIT 2

+#define R_BIT 4

+#define Q_BIT 8

+#define STR_BITS (S_BIT | T_BIT | R_BIT)

+/*@}*/

+

+

+/**

+ * Bit flag versions of the corresponding GL_ constants.

+ */

+/*@{*/

+#define TEXGEN_SPHERE_MAP        0x1

+#define TEXGEN_OBJ_LINEAR        0x2

+#define TEXGEN_EYE_LINEAR        0x4

+#define TEXGEN_REFLECTION_MAP_NV 0x8

+#define TEXGEN_NORMAL_MAP_NV     0x10

+

+#define TEXGEN_NEED_NORMALS      (TEXGEN_SPHERE_MAP        | \

+				  TEXGEN_REFLECTION_MAP_NV | \

+				  TEXGEN_NORMAL_MAP_NV)

+#define TEXGEN_NEED_EYE_COORD    (TEXGEN_SPHERE_MAP        | \

+				  TEXGEN_REFLECTION_MAP_NV | \

+				  TEXGEN_NORMAL_MAP_NV     | \

+				  TEXGEN_EYE_LINEAR)

+/*@}*/

+

+

+

+/** Tex-gen enabled for texture unit? */

+#define ENABLE_TEXGEN(unit) (1 << (unit))

+

+/** Non-identity texture matrix for texture unit? */

+#define ENABLE_TEXMAT(unit) (1 << (unit))

+

+

+/**

+ * Texel fetch function prototype.  We use texel fetch functions to

+ * extract RGBA, color indexes and depth components out of 1D, 2D and 3D

+ * texture images.  These functions help to isolate us from the gritty

+ * details of all the various texture image encodings.

+ * 

+ * \param texImage texture image.

+ * \param col texel column.

+ * \param row texel row.

+ * \param img texel image level/layer.

+ * \param texelOut output texel (up to 4 GLchans)

+ */

+typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage,

+                                 GLint col, GLint row, GLint img,

+                                 GLchan *texelOut );

+

+/**

+ * As above, but returns floats.

+ * Used for depth component images and for upcoming signed/float

+ * texture images.

+ */

+typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage,

+                                 GLint col, GLint row, GLint img,

+                                 GLfloat *texelOut );

+

+

+typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage,

+                               GLint col, GLint row, GLint img,

+                               const void *texel);

+

+

+/**

+ * Texture image state.  Describes the dimensions of a texture image,

+ * the texel format and pointers to Texel Fetch functions.

+ */

+struct gl_texture_image

+{

+   GLint InternalFormat;	/**< Internal format as given by the user */

+   GLenum _BaseFormat;		/**< Either GL_RGB, GL_RGBA, GL_ALPHA,

+				 *   GL_LUMINANCE, GL_LUMINANCE_ALPHA,

+				 *   GL_INTENSITY, GL_COLOR_INDEX,

+				 *   GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT

+                                 *   only. Used for choosing TexEnv arithmetic.

+				 */

+   gl_format TexFormat;         /**< The actual texture memory format */

+

+   GLuint Border;		/**< 0 or 1 */

+   GLuint Width;		/**< = 2^WidthLog2 + 2*Border */

+   GLuint Height;		/**< = 2^HeightLog2 + 2*Border */

+   GLuint Depth;		/**< = 2^DepthLog2 + 2*Border */

+   GLuint Width2;		/**< = Width - 2*Border */

+   GLuint Height2;		/**< = Height - 2*Border */

+   GLuint Depth2;		/**< = Depth - 2*Border */

+   GLuint WidthLog2;		/**< = log2(Width2) */

+   GLuint HeightLog2;		/**< = log2(Height2) */

+   GLuint DepthLog2;		/**< = log2(Depth2) */

+   GLuint MaxLog2;		/**< = MAX(WidthLog2, HeightLog2) */

+   GLfloat WidthScale;		/**< used for mipmap LOD computation */

+   GLfloat HeightScale;		/**< used for mipmap LOD computation */

+   GLfloat DepthScale;		/**< used for mipmap LOD computation */

+   GLboolean IsClientData;	/**< Data owned by client? */

+   GLboolean _IsPowerOfTwo;	/**< Are all dimensions powers of two? */

+

+   struct gl_texture_object *TexObject;  /**< Pointer back to parent object */

+

+   FetchTexelFuncC FetchTexelc;	/**< GLchan texel fetch function pointer */

+   FetchTexelFuncF FetchTexelf;	/**< Float texel fetch function pointer */

+

+   GLuint RowStride;		/**< Padded width in units of texels */

+   GLuint *ImageOffsets;        /**< if 3D texture: array [Depth] of offsets to

+                                     each 2D slice in 'Data', in texels */

+   GLvoid *Data;		/**< Image data, accessed via FetchTexel() */

+

+   /**

+    * \name For device driver:

+    */

+   /*@{*/

+   void *DriverData;		/**< Arbitrary device driver data */

+   /*@}*/

+};

+

+

+/**

+ * Indexes for cube map faces.

+ */

+typedef enum

+{

+   FACE_POS_X = 0,

+   FACE_NEG_X = 1,

+   FACE_POS_Y = 2,

+   FACE_NEG_Y = 3,

+   FACE_POS_Z = 4,

+   FACE_NEG_Z = 5,

+   MAX_FACES = 6

+} gl_face_index;

+

+

+/**

+ * Texture object state.  Contains the array of mipmap images, border color,

+ * wrap modes, filter modes, shadow/texcompare state, and the per-texture

+ * color palette.

+ */

+struct gl_texture_object

+{

+   _glthread_Mutex Mutex;	/**< for thread safety */

+   GLint RefCount;		/**< reference count */

+   GLuint Name;			/**< the user-visible texture object ID */

+   GLenum Target;               /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */

+   GLfloat Priority;		/**< in [0,1] */

+   union {

+      GLfloat f[4];

+      GLuint ui[4];

+      GLint i[4];

+   } BorderColor;               /**< Interpreted according to texture format */

+   GLenum WrapS;		/**< S-axis texture image wrap mode */

+   GLenum WrapT;		/**< T-axis texture image wrap mode */

+   GLenum WrapR;		/**< R-axis texture image wrap mode */

+   GLenum MinFilter;		/**< minification filter */

+   GLenum MagFilter;		/**< magnification filter */

+   GLfloat MinLod;		/**< min lambda, OpenGL 1.2 */

+   GLfloat MaxLod;		/**< max lambda, OpenGL 1.2 */

+   GLfloat LodBias;		/**< OpenGL 1.4 */

+   GLint BaseLevel;		/**< min mipmap level, OpenGL 1.2 */

+   GLint MaxLevel;		/**< max mipmap level, OpenGL 1.2 */

+   GLfloat MaxAnisotropy;	/**< GL_EXT_texture_filter_anisotropic */

+   GLenum CompareMode;		/**< GL_ARB_shadow */

+   GLenum CompareFunc;		/**< GL_ARB_shadow */

+   GLfloat CompareFailValue;    /**< GL_ARB_shadow_ambient */

+   GLenum DepthMode;		/**< GL_ARB_depth_texture */

+   GLint _MaxLevel;		/**< actual max mipmap level (q in the spec) */

+   GLfloat _MaxLambda;		/**< = _MaxLevel - BaseLevel (q - b in spec) */

+   GLint CropRect[4];           /**< GL_OES_draw_texture */

+   GLenum Swizzle[4];           /**< GL_EXT_texture_swizzle */

+   GLuint _Swizzle;             /**< same as Swizzle, but SWIZZLE_* format */

+   GLboolean GenerateMipmap;    /**< GL_SGIS_generate_mipmap */

+   GLboolean _Complete;		/**< Is texture object complete? */

+   GLboolean _RenderToTexture;  /**< Any rendering to this texture? */

+   GLboolean Purgeable;         /**< Is the buffer purgeable under memory pressure? */

+   GLenum sRGBDecode;           /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */

+

+   /** Actual texture images, indexed by [cube face] and [mipmap level] */

+   struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS];

+

+   /** GL_EXT_paletted_texture */

+   struct gl_color_table Palette;

+

+   /**

+    * \name For device driver.

+    * Note: instead of attaching driver data to this pointer, it's preferable

+    * to instead use this struct as a base class for your own texture object

+    * class.  Driver->NewTextureObject() can be used to implement the

+    * allocation.

+    */

+   void *DriverData;	/**< Arbitrary device driver data */

+};

+

+

+/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */

+#define MAX_COMBINER_TERMS 4

+

+

+/**

+ * Texture combine environment state.

+ */

+struct gl_tex_env_combine_state

+{

+   GLenum ModeRGB;       /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */

+   GLenum ModeA;         /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */

+   /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */

+   GLenum SourceRGB[MAX_COMBINER_TERMS];

+   GLenum SourceA[MAX_COMBINER_TERMS];

+   /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */

+   GLenum OperandRGB[MAX_COMBINER_TERMS];

+   GLenum OperandA[MAX_COMBINER_TERMS];

+   GLuint ScaleShiftRGB; /**< 0, 1 or 2 */

+   GLuint ScaleShiftA;   /**< 0, 1 or 2 */

+   GLuint _NumArgsRGB;   /**< Number of inputs used for the RGB combiner */

+   GLuint _NumArgsA;     /**< Number of inputs used for the A combiner */

+};

+

+

+/**

+ * Texture coord generation state.

+ */

+struct gl_texgen

+{

+   GLenum Mode;         /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */

+   GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */

+   GLfloat ObjectPlane[4];

+   GLfloat EyePlane[4];

+};

+

+

+/**

+ * Texture unit state.  Contains enable flags, texture environment/function/

+ * combiners, texgen state, pointers to current texture objects and

+ * post-filter color tables.

+ */

+struct gl_texture_unit

+{

+   GLbitfield Enabled;          /**< bitmask of TEXTURE_*_BIT flags */

+   GLbitfield _ReallyEnabled;   /**< 0 or exactly one of TEXTURE_*_BIT flags */

+

+   GLenum EnvMode;              /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */

+   GLfloat EnvColor[4];

+

+   struct gl_texgen GenS;

+   struct gl_texgen GenT;

+   struct gl_texgen GenR;

+   struct gl_texgen GenQ;

+   GLbitfield TexGenEnabled;	/**< Bitwise-OR of [STRQ]_BIT values */

+   GLbitfield _GenFlags;	/**< Bitwise-OR of Gen[STRQ]._ModeBit */

+

+   GLfloat LodBias;		/**< for biasing mipmap levels */

+   GLenum BumpTarget;

+   GLfloat RotMatrix[4]; /* 2x2 matrix */

+

+   /** 

+    * \name GL_EXT_texture_env_combine 

+    */

+   struct gl_tex_env_combine_state Combine;

+

+   /**

+    * Derived state based on \c EnvMode and the \c BaseFormat of the

+    * currently enabled texture.

+    */

+   struct gl_tex_env_combine_state _EnvMode;

+

+   /**

+    * Currently enabled combiner state.  This will point to either

+    * \c Combine or \c _EnvMode.

+    */

+   struct gl_tex_env_combine_state *_CurrentCombine;

+

+   /** Current texture object pointers */

+   struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS];

+

+   /** Points to highest priority, complete and enabled texture object */

+   struct gl_texture_object *_Current;

+

+   /** GL_SGI_texture_color_table */

+   /*@{*/

+   struct gl_color_table ColorTable;

+   struct gl_color_table ProxyColorTable;

+   GLboolean ColorTableEnabled;

+   /*@}*/

+};

+

+

+/**

+ * Texture attribute group (GL_TEXTURE_BIT).

+ */

+struct gl_texture_attrib

+{

+   GLuint CurrentUnit;   /**< GL_ACTIVE_TEXTURE */

+   struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS];

+

+   struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS];

+

+   /** GL_ARB_seamless_cubemap */

+   GLboolean CubeMapSeamless;

+

+   /** GL_EXT_shared_texture_palette */

+   GLboolean SharedPalette;

+   struct gl_color_table Palette;

+

+   /** Texture units/samplers used by vertex or fragment texturing */

+   GLbitfield _EnabledUnits;

+

+   /** Texture coord units/sets used for fragment texturing */

+   GLbitfield _EnabledCoordUnits;

+

+   /** Texture coord units that have texgen enabled */

+   GLbitfield _TexGenEnabled;

+

+   /** Texture coord units that have non-identity matrices */

+   GLbitfield _TexMatEnabled;

+

+   /** Bitwise-OR of all Texture.Unit[i]._GenFlags */

+   GLbitfield _GenFlags;

+};

+

+

+/**

+ * Transformation attribute group (GL_TRANSFORM_BIT).

+ */

+struct gl_transform_attrib

+{

+   GLenum MatrixMode;				/**< Matrix mode */

+   GLfloat EyeUserPlane[MAX_CLIP_PLANES][4];	/**< User clip planes */

+   GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4];	/**< derived */

+   GLbitfield ClipPlanesEnabled;                /**< on/off bitmask */

+   GLboolean Normalize;				/**< Normalize all normals? */

+   GLboolean RescaleNormals;			/**< GL_EXT_rescale_normal */

+   GLboolean RasterPositionUnclipped;           /**< GL_IBM_rasterpos_clip */

+   GLboolean DepthClamp;			/**< GL_ARB_depth_clamp */

+

+   GLfloat CullEyePos[4];

+   GLfloat CullObjPos[4];

+};

+

+

+/**

+ * Viewport attribute group (GL_VIEWPORT_BIT).

+ */

+struct gl_viewport_attrib

+{

+   GLint X, Y;			/**< position */

+   GLsizei Width, Height;	/**< size */

+   GLfloat Near, Far;		/**< Depth buffer range */

+   GLmatrix _WindowMap;		/**< Mapping transformation as a matrix. */

+};

+

+

+/**

+ * GL_ARB_vertex/pixel_buffer_object buffer object

+ */

+struct gl_buffer_object

+{

+   _glthread_Mutex Mutex;

+   GLint RefCount;

+   GLuint Name;

+   GLenum Usage;        /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */

+   GLsizeiptrARB Size;  /**< Size of buffer storage in bytes */

+   GLubyte *Data;       /**< Location of storage either in RAM or VRAM. */

+   /** Fields describing a mapped buffer */

+   /*@{*/

+   GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */

+   GLvoid *Pointer;     /**< User-space address of mapping */

+   GLintptr Offset;     /**< Mapped offset */

+   GLsizeiptr Length;   /**< Mapped length */

+   /*@}*/

+   GLboolean Written;   /**< Ever written to? (for debugging) */

+   GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */

+};

+

+

+/**

+ * Client pixel packing/unpacking attributes

+ */

+struct gl_pixelstore_attrib

+{

+   GLint Alignment;

+   GLint RowLength;

+   GLint SkipPixels;

+   GLint SkipRows;

+   GLint ImageHeight;

+   GLint SkipImages;

+   GLboolean SwapBytes;

+   GLboolean LsbFirst;

+   GLboolean ClientStorage; /**< GL_APPLE_client_storage */

+   GLboolean Invert;        /**< GL_MESA_pack_invert */

+   struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */

+};

+

+

+/**

+ * Client vertex array attributes

+ */

+struct gl_client_array

+{

+   GLint Size;                  /**< components per element (1,2,3,4) */

+   GLenum Type;                 /**< datatype: GL_FLOAT, GL_INT, etc */

+   GLenum Format;               /**< default: GL_RGBA, but may be GL_BGRA */

+   GLsizei Stride;		/**< user-specified stride */

+   GLsizei StrideB;		/**< actual stride in bytes */

+   const GLubyte *Ptr;          /**< Points to array data */

+   GLboolean Enabled;		/**< Enabled flag is a boolean */

+   GLboolean Normalized;        /**< GL_ARB_vertex_program */

+   GLboolean Integer;           /**< Integer-valued? */

+   GLuint InstanceDivisor;      /**< GL_ARB_instanced_arrays */

+   GLuint _ElementSize;         /**< size of each element in bytes */

+

+   struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */

+   GLuint _MaxElement;          /**< max element index into array buffer + 1 */

+};

+

+

+/**

+ * Collection of vertex arrays.  Defined by the GL_APPLE_vertex_array_object

+ * extension, but a nice encapsulation in any case.

+ */

+struct gl_array_object

+{

+   /** Name of the array object as received from glGenVertexArrayAPPLE. */

+   GLuint Name;

+

+   GLint RefCount;

+   _glthread_Mutex Mutex;

+   GLboolean VBOonly;  /**< require all arrays to live in VBOs? */

+

+   /** Conventional vertex arrays */

+   /*@{*/

+   struct gl_client_array Vertex;

+   struct gl_client_array Weight;

+   struct gl_client_array Normal;

+   struct gl_client_array Color;

+   struct gl_client_array SecondaryColor;

+   struct gl_client_array FogCoord;

+   struct gl_client_array Index;

+   struct gl_client_array EdgeFlag;

+   struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS];

+   struct gl_client_array PointSize;

+   /*@}*/

+

+   /**

+    * Generic arrays for vertex programs/shaders.

+    * For NV vertex programs, these attributes alias and take priority

+    * over the conventional attribs above.  For ARB vertex programs and

+    * GLSL vertex shaders, these attributes are separate.

+    */

+   struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS];

+

+   /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */

+   GLbitfield _Enabled;

+

+   /**

+    * Min of all enabled arrays' _MaxElement.  When arrays reside inside VBOs

+    * we can determine the max legal (in bounds) glDrawElements array index.

+    */

+   GLuint _MaxElement;

+};

+

+

+/**

+ * Vertex array state

+ */

+struct gl_array_attrib

+{

+   /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */

+   struct gl_array_object *ArrayObj;

+

+   /** The default vertex array object */

+   struct gl_array_object *DefaultArrayObj;

+

+   /** Array objects (GL_ARB/APPLE_vertex_array_object) */

+   struct _mesa_HashTable *Objects;

+

+   GLint ActiveTexture;		/**< Client Active Texture */

+   GLuint LockFirst;            /**< GL_EXT_compiled_vertex_array */

+   GLuint LockCount;            /**< GL_EXT_compiled_vertex_array */

+

+   /** GL 3.1 (slightly different from GL_NV_primitive_restart) */

+   GLboolean PrimitiveRestart;

+   GLuint RestartIndex;

+

+   GLbitfield NewState;		/**< mask of _NEW_ARRAY_* values */

+   GLboolean RebindArrays; /**< whether the VBO module should rebind arrays */

+

+   /* GL_ARB_vertex_buffer_object */

+   struct gl_buffer_object *ArrayBufferObj;

+   struct gl_buffer_object *ElementArrayBufferObj;

+};

+

+

+/**

+ * Feedback buffer state

+ */

+struct gl_feedback

+{

+   GLenum Type;

+   GLbitfield _Mask;    /**< FB_* bits */

+   GLfloat *Buffer;

+   GLuint BufferSize;

+   GLuint Count;

+};

+

+

+/**

+ * Selection buffer state

+ */

+struct gl_selection

+{

+   GLuint *Buffer;	/**< selection buffer */

+   GLuint BufferSize;	/**< size of the selection buffer */

+   GLuint BufferCount;	/**< number of values in the selection buffer */

+   GLuint Hits;		/**< number of records in the selection buffer */

+   GLuint NameStackDepth; /**< name stack depth */

+   GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */

+   GLboolean HitFlag;	/**< hit flag */

+   GLfloat HitMinZ;	/**< minimum hit depth */

+   GLfloat HitMaxZ;	/**< maximum hit depth */

+};

+

+

+/**

+ * 1-D Evaluator control points

+ */

+struct gl_1d_map

+{

+   GLuint Order;	/**< Number of control points */

+   GLfloat u1, u2, du;	/**< u1, u2, 1.0/(u2-u1) */

+   GLfloat *Points;	/**< Points to contiguous control points */

+};

+

+

+/**

+ * 2-D Evaluator control points

+ */

+struct gl_2d_map

+{

+   GLuint Uorder;		/**< Number of control points in U dimension */

+   GLuint Vorder;		/**< Number of control points in V dimension */

+   GLfloat u1, u2, du;

+   GLfloat v1, v2, dv;

+   GLfloat *Points;		/**< Points to contiguous control points */

+};

+

+

+/**

+ * All evaluator control point state

+ */

+struct gl_evaluators

+{

+   /** 

+    * \name 1-D maps

+    */

+   /*@{*/

+   struct gl_1d_map Map1Vertex3;

+   struct gl_1d_map Map1Vertex4;

+   struct gl_1d_map Map1Index;

+   struct gl_1d_map Map1Color4;

+   struct gl_1d_map Map1Normal;

+   struct gl_1d_map Map1Texture1;

+   struct gl_1d_map Map1Texture2;

+   struct gl_1d_map Map1Texture3;

+   struct gl_1d_map Map1Texture4;

+   struct gl_1d_map Map1Attrib[16];  /**< GL_NV_vertex_program */

+   /*@}*/

+

+   /** 

+    * \name 2-D maps 

+    */

+   /*@{*/

+   struct gl_2d_map Map2Vertex3;

+   struct gl_2d_map Map2Vertex4;

+   struct gl_2d_map Map2Index;

+   struct gl_2d_map Map2Color4;

+   struct gl_2d_map Map2Normal;

+   struct gl_2d_map Map2Texture1;

+   struct gl_2d_map Map2Texture2;

+   struct gl_2d_map Map2Texture3;

+   struct gl_2d_map Map2Texture4;

+   struct gl_2d_map Map2Attrib[16];  /**< GL_NV_vertex_program */

+   /*@}*/

+};

+

+

+/**

+ * Names of the various vertex/fragment program register files, etc.

+ *

+ * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)

+ * All values should fit in a 4-bit field.

+ *

+ * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM,

+ * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to

+ * be "uniform" variables since they can only be set outside glBegin/End.

+ * They're also all stored in the same Parameters array.

+ */

+typedef enum

+{

+   PROGRAM_TEMPORARY,   /**< machine->Temporary[] */

+   PROGRAM_INPUT,       /**< machine->Inputs[] */

+   PROGRAM_OUTPUT,      /**< machine->Outputs[] */

+   PROGRAM_VARYING,     /**< machine->Inputs[]/Outputs[] */

+   PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */

+   PROGRAM_ENV_PARAM,   /**< gl_program->Parameters[] */

+   PROGRAM_STATE_VAR,   /**< gl_program->Parameters[] */

+   PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */

+   PROGRAM_CONSTANT,    /**< gl_program->Parameters[] */

+   PROGRAM_UNIFORM,     /**< gl_program->Parameters[] */

+   PROGRAM_WRITE_ONLY,  /**< A dummy, write-only register */

+   PROGRAM_ADDRESS,     /**< machine->AddressReg */

+   PROGRAM_SAMPLER,     /**< for shader samplers, compile-time only */

+   PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */

+   PROGRAM_UNDEFINED,   /**< Invalid/TBD value */

+   PROGRAM_FILE_MAX

+} gl_register_file;

+

+

+/**

+ * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be

+ * one of these values.

+ */

+typedef enum

+{

+   SYSTEM_VALUE_FRONT_FACE,  /**< Fragment shader only (not done yet) */

+   SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */

+   SYSTEM_VALUE_MAX          /**< Number of values */

+} gl_system_value;

+

+

+/** Vertex and fragment instructions */

+struct prog_instruction;

+struct gl_program_parameter_list;

+struct gl_uniform_list;

+

+

+/**

+ * Base class for any kind of program object

+ */

+struct gl_program

+{

+   GLuint Id;

+   GLubyte *String;  /**< Null-terminated program text */

+   GLint RefCount;

+   GLenum Target;    /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */

+   GLenum Format;    /**< String encoding format */

+   GLboolean Resident;

+

+   struct prog_instruction *Instructions;

+

+   GLbitfield InputsRead;     /**< Bitmask of which input regs are read */

+   GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */

+   GLbitfield SystemValuesRead;   /**< Bitmask of SYSTEM_VALUE_x inputs used */

+   GLbitfield InputFlags[MAX_PROGRAM_INPUTS];   /**< PROG_PARAM_BIT_x flags */

+   GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */

+   GLbitfield TexturesUsed[MAX_TEXTURE_UNITS];  /**< TEXTURE_x_BIT bitmask */

+   GLbitfield SamplersUsed;   /**< Bitfield of which samplers are used */

+   GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */

+

+

+   /** Named parameters, constants, etc. from program text */

+   struct gl_program_parameter_list *Parameters;

+   /** Numbered local parameters */

+   GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4];

+

+   /** Vertex/fragment shader varying vars */

+   struct gl_program_parameter_list *Varying;

+   /** Vertex program user-defined attributes */

+   struct gl_program_parameter_list *Attributes;

+

+   /** Map from sampler unit to texture unit (set by glUniform1i()) */

+   GLubyte SamplerUnits[MAX_SAMPLERS];

+   /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */

+   gl_texture_index SamplerTargets[MAX_SAMPLERS];

+

+   /** Bitmask of which register files are read/written with indirect

+    * addressing.  Mask of (1 << PROGRAM_x) bits.

+    */

+   GLbitfield IndirectRegisterFiles;

+

+   /** Logical counts */

+   /*@{*/

+   GLuint NumInstructions;

+   GLuint NumTemporaries;

+   GLuint NumParameters;

+   GLuint NumAttributes;

+   GLuint NumAddressRegs;

+   GLuint NumAluInstructions;

+   GLuint NumTexInstructions;

+   GLuint NumTexIndirections;

+   /*@}*/

+   /** Native, actual h/w counts */

+   /*@{*/

+   GLuint NumNativeInstructions;

+   GLuint NumNativeTemporaries;

+   GLuint NumNativeParameters;

+   GLuint NumNativeAttributes;

+   GLuint NumNativeAddressRegs;

+   GLuint NumNativeAluInstructions;

+   GLuint NumNativeTexInstructions;

+   GLuint NumNativeTexIndirections;

+   /*@}*/

+};

+

+

+/** Vertex program object */

+struct gl_vertex_program

+{

+   struct gl_program Base;   /**< base class */

+   GLboolean IsNVProgram;    /**< is this a GL_NV_vertex_program program? */

+   GLboolean IsPositionInvariant;

+};

+

+

+/** Geometry program object */

+struct gl_geometry_program

+{

+   struct gl_program Base;   /**< base class */

+

+   GLint VerticesOut;

+   GLenum InputType;  /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,

+                           GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */

+   GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */

+};

+

+

+/** Fragment program object */

+struct gl_fragment_program

+{

+   struct gl_program Base;   /**< base class */

+   GLenum FogOption;

+   GLboolean UsesKill;          /**< shader uses KIL instruction */

+   GLboolean OriginUpperLeft;

+   GLboolean PixelCenterInteger;

+   enum gl_frag_depth_layout FragDepthLayout;

+};

+

+

+/**

+ * State common to vertex and fragment programs.

+ */

+struct gl_program_state

+{

+   GLint ErrorPos;                       /* GL_PROGRAM_ERROR_POSITION_ARB/NV */

+   const char *ErrorString;              /* GL_PROGRAM_ERROR_STRING_ARB/NV */

+};

+

+

+/**

+ * Context state for vertex programs.

+ */

+struct gl_vertex_program_state

+{

+   GLboolean Enabled;            /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */

+   GLboolean _Enabled;           /**< Enabled and _valid_ user program? */

+   GLboolean PointSizeEnabled;   /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */

+   GLboolean TwoSideEnabled;     /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */

+   struct gl_vertex_program *Current;  /**< User-bound vertex program */

+

+   /** Currently enabled and valid vertex program (including internal

+    * programs, user-defined vertex programs and GLSL vertex shaders).

+    * This is the program we must use when rendering.

+    */

+   struct gl_vertex_program *_Current;

+

+   GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */

+

+   /* For GL_NV_vertex_program only: */

+   GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4];

+   GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4];

+

+   /** Should fixed-function T&L be implemented with a vertex prog? */

+   GLboolean _MaintainTnlProgram;

+

+   /** Program to emulate fixed-function T&L (see above) */

+   struct gl_vertex_program *_TnlProgram;

+

+   /** Cache of fixed-function programs */

+   struct gl_program_cache *Cache;

+

+   GLboolean _Overriden;

+};

+

+

+/**

+ * Context state for geometry programs.

+ */

+struct gl_geometry_program_state

+{

+   GLboolean Enabled;               /**< GL_ARB_GEOMETRY_SHADER4 */

+   GLboolean _Enabled;              /**< Enabled and valid program? */

+   struct gl_geometry_program *Current;  /**< user-bound geometry program */

+

+   /** Currently enabled and valid program (including internal programs

+    * and compiled shader programs).

+    */

+   struct gl_geometry_program *_Current;

+

+   GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */

+

+   /** Cache of fixed-function programs */

+   struct gl_program_cache *Cache;

+};

+

+/**

+ * Context state for fragment programs.

+ */

+struct gl_fragment_program_state

+{

+   GLboolean Enabled;     /**< User-set fragment program enable flag */

+   GLboolean _Enabled;    /**< Enabled and _valid_ user program? */

+   struct gl_fragment_program *Current;  /**< User-bound fragment program */

+

+   /** Currently enabled and valid fragment program (including internal

+    * programs, user-defined fragment programs and GLSL fragment shaders).

+    * This is the program we must use when rendering.

+    */

+   struct gl_fragment_program *_Current;

+

+   GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */

+

+   /** Should fixed-function texturing be implemented with a fragment prog? */

+   GLboolean _MaintainTexEnvProgram;

+

+   /** Program to emulate fixed-function texture env/combine (see above) */

+   struct gl_fragment_program *_TexEnvProgram;

+

+   /** Cache of fixed-function programs */

+   struct gl_program_cache *Cache;

+};

+

+

+/**

+ * ATI_fragment_shader runtime state

+ */

+#define ATI_FS_INPUT_PRIMARY 0

+#define ATI_FS_INPUT_SECONDARY 1

+

+struct atifs_instruction;

+struct atifs_setupinst;

+

+/**

+ * ATI fragment shader

+ */

+struct ati_fragment_shader

+{

+   GLuint Id;

+   GLint RefCount;

+   struct atifs_instruction *Instructions[2];

+   struct atifs_setupinst *SetupInst[2];

+   GLfloat Constants[8][4];

+   GLbitfield LocalConstDef;  /**< Indicates which constants have been set */

+   GLubyte numArithInstr[2];

+   GLubyte regsAssigned[2];

+   GLubyte NumPasses;         /**< 1 or 2 */

+   GLubyte cur_pass;

+   GLubyte last_optype;

+   GLboolean interpinp1;

+   GLboolean isValid;

+   GLuint swizzlerq;

+};

+

+/**

+ * Context state for GL_ATI_fragment_shader

+ */

+struct gl_ati_fragment_shader_state

+{

+   GLboolean Enabled;

+   GLboolean _Enabled;                  /**< enabled and valid shader? */

+   GLboolean Compiling;

+   GLfloat GlobalConstants[8][4];

+   struct ati_fragment_shader *Current;

+};

+

+

+/**

+ * Occlusion/timer query object.

+ */

+struct gl_query_object

+{

+   GLenum Target;      /**< The query target, when active */

+   GLuint Id;          /**< hash table ID/name */

+   GLuint64EXT Result; /**< the counter */

+   GLboolean Active;   /**< inside Begin/EndQuery */

+   GLboolean Ready;    /**< result is ready? */

+};

+

+

+/**

+ * Context state for query objects.

+ */

+struct gl_query_state

+{

+   struct _mesa_HashTable *QueryObjects;

+   struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */

+   struct gl_query_object *CurrentTimerObject;     /* GL_EXT_timer_query */

+

+   /** GL_NV_conditional_render */

+   struct gl_query_object *CondRenderQuery;

+

+   /** GL_EXT_transform_feedback */

+   struct gl_query_object *PrimitivesGenerated;

+   struct gl_query_object *PrimitivesWritten;

+

+   /** GL_ARB_timer_query */

+   struct gl_query_object *TimeElapsed;

+

+   GLenum CondRenderMode;

+};

+

+

+/** Sync object state */

+struct gl_sync_object {

+   struct simple_node link;

+   GLenum Type;               /**< GL_SYNC_FENCE */

+   GLuint Name;               /**< Fence name */

+   GLint RefCount;            /**< Reference count */

+   GLboolean DeletePending;   /**< Object was deleted while there were still

+			       * live references (e.g., sync not yet finished)

+			       */

+   GLenum SyncCondition;

+   GLbitfield Flags;          /**< Flags passed to glFenceSync */

+   GLuint StatusFlag:1;       /**< Has the sync object been signaled? */

+};

+

+

+/** Set by #pragma directives */

+struct gl_sl_pragmas

+{

+   GLboolean IgnoreOptimize;  /**< ignore #pragma optimize(on/off) ? */

+   GLboolean IgnoreDebug;     /**< ignore #pragma debug(on/off) ? */

+   GLboolean Optimize;  /**< defaults on */

+   GLboolean Debug;     /**< defaults off */

+};

+

+

+/**

+ * A GLSL vertex or fragment shader object.

+ */

+struct gl_shader

+{

+   GLenum Type;  /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */

+   GLuint Name;  /**< AKA the handle */

+   GLint RefCount;  /**< Reference count */

+   GLboolean DeletePending;

+   GLboolean CompileStatus;

+   const GLchar *Source;  /**< Source code string */

+   GLuint SourceChecksum;       /**< for debug/logging purposes */

+   struct gl_program *Program;  /**< Post-compile assembly code */

+   GLchar *InfoLog;

+   struct gl_sl_pragmas Pragmas;

+

+   unsigned Version;       /**< GLSL version used for linking */

+

+   struct exec_list *ir;

+   struct glsl_symbol_table *symbols;

+

+   /** Shaders containing built-in functions that are used for linking. */

+   struct gl_shader *builtins_to_link[16];

+   unsigned num_builtins_to_link;

+};

+

+

+/**

+ * A GLSL program object.

+ * Basically a linked collection of vertex and fragment shaders.

+ */

+struct gl_shader_program

+{

+   GLenum Type;  /**< Always GL_SHADER_PROGRAM (internal token) */

+   GLuint Name;  /**< aka handle or ID */

+   GLint RefCount;  /**< Reference count */

+   GLboolean DeletePending;

+

+   GLuint NumShaders;          /**< number of attached shaders */

+   struct gl_shader **Shaders; /**< List of attached the shaders */

+

+   /** User-defined attribute bindings (glBindAttribLocation) */

+   struct gl_program_parameter_list *Attributes;

+

+   /** Transform feedback varyings */

+   struct {

+      GLenum BufferMode;

+      GLuint NumVarying;

+      GLchar **VaryingNames;  /**< Array [NumVarying] of char * */

+   } TransformFeedback;

+

+   /** Geometry shader state - copied into gl_geometry_program at link time */

+   struct {

+      GLint VerticesOut;

+      GLenum InputType;  /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,

+                              GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */

+      GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */

+   } Geom;

+

+   /* post-link info: */

+   struct gl_vertex_program *VertexProgram;     /**< Linked vertex program */

+   struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */

+   struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */

+   struct gl_uniform_list *Uniforms;

+   struct gl_program_parameter_list *Varying;

+   GLboolean LinkStatus;   /**< GL_LINK_STATUS */

+   GLboolean Validated;

+   GLboolean _Used;        /**< Ever used for drawing? */

+   GLchar *InfoLog;

+

+   unsigned Version;       /**< GLSL version used for linking */

+

+   /**

+    * Per-stage shaders resulting from the first stage of linking.

+    *

+    * Set of linked shaders for this program.  The array is accessed using the

+    * \c MESA_SHADER_* defines.  Entries for non-existent stages will be

+    * \c NULL.

+    */

+   struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES];

+};   

+

+

+#define GLSL_DUMP      0x1  /**< Dump shaders to stdout */

+#define GLSL_LOG       0x2  /**< Write shaders to files */

+#define GLSL_OPT       0x4  /**< Force optimizations (override pragmas) */

+#define GLSL_NO_OPT    0x8  /**< Force no optimizations (override pragmas) */

+#define GLSL_UNIFORMS 0x10  /**< Print glUniform calls */

+#define GLSL_NOP_VERT 0x20  /**< Force no-op vertex shaders */

+#define GLSL_NOP_FRAG 0x40  /**< Force no-op fragment shaders */

+#define GLSL_USE_PROG 0x80  /**< Log glUseProgram calls */

+

+

+/**

+ * Context state for GLSL vertex/fragment shaders.

+ */

+struct gl_shader_state

+{

+   /**

+    * Programs used for rendering

+    *

+    * There is a separate program set for each shader stage.  If

+    * GL_EXT_separate_shader_objects is not supported, each of these must point

+    * to \c NULL or to the same program.

+    */

+   struct gl_shader_program *CurrentVertexProgram;

+   struct gl_shader_program *CurrentGeometryProgram;

+   struct gl_shader_program *CurrentFragmentProgram;

+

+   /**

+    * Program used by glUniform calls.

+    *

+    * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.

+    */

+   struct gl_shader_program *ActiveProgram;

+

+   void *MemPool;

+

+   GLbitfield Flags;                    /**< Mask of GLSL_x flags */

+};

+

+/**

+ * Compiler options for a single GLSL shaders type

+ */

+struct gl_shader_compiler_options

+{

+   /** Driver-selectable options: */

+   GLboolean EmitCondCodes;             /**< Use condition codes? */

+   GLboolean EmitNVTempInitialization;  /**< 0-fill NV temp registers */

+   /**

+    * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't

+    * support control flow.

+    */

+   GLboolean EmitNoIfs;

+   GLboolean EmitNoLoops;

+   GLboolean EmitNoFunctions;

+   GLboolean EmitNoCont;                  /**< Emit CONT opcode? */

+   GLboolean EmitNoMainReturn;            /**< Emit CONT/RET opcodes? */

+   GLboolean EmitNoNoise;                 /**< Emit NOISE opcodes? */

+   GLboolean EmitNoPow;                   /**< Emit POW opcodes? */

+

+   /**

+    * \name Forms of indirect addressing the driver cannot do.

+    */

+   /*@{*/

+   GLboolean EmitNoIndirectInput;   /**< No indirect addressing of inputs */

+   GLboolean EmitNoIndirectOutput;  /**< No indirect addressing of outputs */

+   GLboolean EmitNoIndirectTemp;    /**< No indirect addressing of temps */

+   GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */

+   /*@}*/

+

+   GLuint MaxUnrollIterations;

+

+   struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */

+};

+

+/**

+ * Transform feedback object state

+ */

+struct gl_transform_feedback_object

+{

+   GLuint Name;  /**< AKA the object ID */

+   GLint RefCount;

+   GLboolean Active;  /**< Is transform feedback enabled? */

+   GLboolean Paused;  /**< Is transform feedback paused? */

+

+   /** The feedback buffers */

+   GLuint BufferNames[MAX_FEEDBACK_ATTRIBS];

+   struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS];

+

+   /** Start of feedback data in dest buffer */

+   GLintptr Offset[MAX_FEEDBACK_ATTRIBS];

+   /** Max data to put into dest buffer (in bytes) */

+   GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS];

+};

+

+

+/**

+ * Context state for transform feedback.

+ */

+struct gl_transform_feedback

+{

+   GLenum Mode;       /**< GL_POINTS, GL_LINES or GL_TRIANGLES */

+

+   GLboolean RasterDiscard;  /**< GL_RASTERIZER_DISCARD */

+

+   /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */

+   struct gl_buffer_object *CurrentBuffer;

+

+   /** The table of all transform feedback objects */

+   struct _mesa_HashTable *Objects;

+

+   /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */

+   struct gl_transform_feedback_object *CurrentObject;

+

+   /** The default xform-fb object (Name==0) */

+   struct gl_transform_feedback_object *DefaultObject;

+};

+

+

+

+/**

+ * State which can be shared by multiple contexts:

+ */

+struct gl_shared_state

+{

+   _glthread_Mutex Mutex;		   /**< for thread safety */

+   GLint RefCount;			   /**< Reference count */

+   struct _mesa_HashTable *DisplayList;	   /**< Display lists hash table */

+   struct _mesa_HashTable *TexObjects;	   /**< Texture objects hash table */

+

+   /** Default texture objects (shared by all texture units) */

+   struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS];

+

+   /** Fallback texture used when a bound texture is incomplete */

+   struct gl_texture_object *FallbackTex;

+

+   /**

+    * \name Thread safety and statechange notification for texture

+    * objects. 

+    *

+    * \todo Improve the granularity of locking.

+    */

+   /*@{*/

+   _glthread_Mutex TexMutex;		/**< texobj thread safety */

+   GLuint TextureStateStamp;	        /**< state notification for shared tex */

+   /*@}*/

+

+   /** Default buffer object for vertex arrays that aren't in VBOs */

+   struct gl_buffer_object *NullBufferObj;

+

+   /**

+    * \name Vertex/geometry/fragment programs

+    */

+   /*@{*/

+   struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */

+   struct gl_vertex_program *DefaultVertexProgram;

+   struct gl_fragment_program *DefaultFragmentProgram;

+   struct gl_geometry_program *DefaultGeometryProgram;

+   /*@}*/

+

+   /* GL_ATI_fragment_shader */

+   struct _mesa_HashTable *ATIShaders;

+   struct ati_fragment_shader *DefaultFragmentShader;

+

+   struct _mesa_HashTable *BufferObjects;

+

+   /** Table of both gl_shader and gl_shader_program objects */

+   struct _mesa_HashTable *ShaderObjects;

+

+   /* GL_EXT_framebuffer_object */

+   struct _mesa_HashTable *RenderBuffers;

+   struct _mesa_HashTable *FrameBuffers;

+

+   /* GL_ARB_sync */

+   struct simple_node SyncObjects;

+

+   void *DriverData;  /**< Device driver shared state */

+};

+

+

+

+

+/**

+ * A renderbuffer stores colors or depth values or stencil values.

+ * A framebuffer object will have a collection of these.

+ * Data are read/written to the buffer with a handful of Get/Put functions.

+ *

+ * Instances of this object are allocated with the Driver's NewRenderbuffer

+ * hook.  Drivers will likely wrap this class inside a driver-specific

+ * class to simulate inheritance.

+ */

+struct gl_renderbuffer

+{

+#define RB_MAGIC 0xaabbccdd

+   int Magic; /** XXX TEMPORARY DEBUG INFO */

+   _glthread_Mutex Mutex;		   /**< for thread safety */

+   GLuint ClassID;        /**< Useful for drivers */

+   GLuint Name;

+   GLint RefCount;

+   GLuint Width, Height;

+   GLboolean Purgeable;   /**< Is the buffer purgeable under memory pressure? */

+

+   GLenum InternalFormat; /**< The user-specified format */

+   GLenum _BaseFormat;    /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or

+                               GL_STENCIL_INDEX. */

+   gl_format Format;      /**< The actual renderbuffer memory format */

+

+   GLubyte NumSamples;

+

+   GLenum DataType;      /**< Type of values passed to the Get/Put functions */

+   GLvoid *Data;        /**< This may not be used by some kinds of RBs */

+

+   /* Used to wrap one renderbuffer around another: */

+   struct gl_renderbuffer *Wrapped;

+

+   /* Delete this renderbuffer */

+   void (*Delete)(struct gl_renderbuffer *rb);

+

+   /* Allocate new storage for this renderbuffer */

+   GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb,

+                             GLenum internalFormat,

+                             GLuint width, GLuint height);

+

+   /* Lock/Unlock are called before/after calling the Get/Put functions.

+    * Not sure this is the right place for these yet.

+   void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb);

+   void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb);

+    */

+

+   /* Return a pointer to the element/pixel at (x,y).

+    * Should return NULL if the buffer memory can't be directly addressed.

+    */

+   void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb,

+                       GLint x, GLint y);

+

+   /* Get/Read a row of values.

+    * The values will be of format _BaseFormat and type DataType.

+    */

+   void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,

+                  GLint x, GLint y, void *values);

+

+   /* Get/Read values at arbitrary locations.

+    * The values will be of format _BaseFormat and type DataType.

+    */

+   void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,

+                     const GLint x[], const GLint y[], void *values);

+

+   /* Put/Write a row of values.

+    * The values will be of format _BaseFormat and type DataType.

+    */

+   void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,

+                  GLint x, GLint y, const void *values, const GLubyte *mask);

+

+   /* Put/Write a row of RGB values.  This is a special-case routine that's

+    * only used for RGBA renderbuffers when the source data is GL_RGB. That's

+    * a common case for glDrawPixels and some triangle routines.

+    * The values will be of format GL_RGB and type DataType.

+    */

+   void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,

+                    GLint x, GLint y, const void *values, const GLubyte *mask);

+

+

+   /* Put/Write a row of identical values.

+    * The values will be of format _BaseFormat and type DataType.

+    */

+   void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,

+                     GLint x, GLint y, const void *value, const GLubyte *mask);

+

+   /* Put/Write values at arbitrary locations.

+    * The values will be of format _BaseFormat and type DataType.

+    */

+   void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,

+                     const GLint x[], const GLint y[], const void *values,

+                     const GLubyte *mask);

+   /* Put/Write identical values at arbitrary locations.

+    * The values will be of format _BaseFormat and type DataType.

+    */

+   void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb,

+                         GLuint count, const GLint x[], const GLint y[],

+                         const void *value, const GLubyte *mask);

+};

+

+

+/**

+ * A renderbuffer attachment points to either a texture object (and specifies

+ * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.

+ */

+struct gl_renderbuffer_attachment

+{

+   GLenum Type;  /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */

+   GLboolean Complete;

+

+   /**

+    * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the

+    * application supplied renderbuffer object.

+    */

+   struct gl_renderbuffer *Renderbuffer;

+

+   /**

+    * If \c Type is \c GL_TEXTURE, this stores a pointer to the application

+    * supplied texture object.

+    */

+   struct gl_texture_object *Texture;

+   GLuint TextureLevel; /**< Attached mipmap level. */

+   GLuint CubeMapFace;  /**< 0 .. 5, for cube map textures. */

+   GLuint Zoffset;      /**< Slice for 3D textures,  or layer for both 1D

+                         * and 2D array textures */

+};

+

+

+/**

+ * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).

+ * In C++ terms, think of this as a base class from which device drivers

+ * will make derived classes.

+ */

+struct gl_framebuffer

+{

+   _glthread_Mutex Mutex;  /**< for thread safety */

+   /**

+    * If zero, this is a window system framebuffer.  If non-zero, this

+    * is a FBO framebuffer; note that for some devices (i.e. those with

+    * a natural pixel coordinate system for FBOs that differs from the

+    * OpenGL/Mesa coordinate system), this means that the viewport,

+    * polygon face orientation, and polygon stipple will have to be inverted.

+    */

+   GLuint Name;

+

+   GLint RefCount;

+   GLboolean DeletePending;

+

+   /**

+    * The framebuffer's visual. Immutable if this is a window system buffer.

+    * Computed from attachments if user-made FBO.

+    */

+   struct gl_config Visual;

+

+   GLboolean Initialized;

+

+   GLuint Width, Height;	/**< size of frame buffer in pixels */

+

+   /** \name  Drawing bounds (Intersection of buffer size and scissor box) */

+   /*@{*/

+   GLint _Xmin, _Xmax;  /**< inclusive */

+   GLint _Ymin, _Ymax;  /**< exclusive */

+   /*@}*/

+

+   /** \name  Derived Z buffer stuff */

+   /*@{*/

+   GLuint _DepthMax;	/**< Max depth buffer value */

+   GLfloat _DepthMaxF;	/**< Float max depth buffer value */

+   GLfloat _MRD;	/**< minimum resolvable difference in Z values */

+   /*@}*/

+

+   /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */

+   GLenum _Status;

+

+   /** Integer color values */

+   GLboolean _IntegerColor;

+

+   /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */

+   struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT];

+

+   /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER

+    * attribute group and GL_PIXEL attribute group, respectively.

+    */

+   GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS];

+   GLenum ColorReadBuffer;

+

+   /** Computed from ColorDraw/ReadBuffer above */

+   GLuint _NumColorDrawBuffers;

+   GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */

+   GLint _ColorReadBufferIndex; /* -1 = None */

+   struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS];

+   struct gl_renderbuffer *_ColorReadBuffer;

+

+   /** The Actual depth/stencil buffers to use.  May be wrappers around the

+    * depth/stencil buffers attached above. */

+   struct gl_renderbuffer *_DepthBuffer;

+   struct gl_renderbuffer *_StencilBuffer;

+

+   /** Delete this framebuffer */

+   void (*Delete)(struct gl_framebuffer *fb);

+};

+

+

+/**

+ * Precision info for shader datatypes.  See glGetShaderPrecisionFormat().

+ */

+struct gl_precision

+{

+   GLushort RangeMin;   /**< min value exponent */

+   GLushort RangeMax;   /**< max value exponent */

+   GLushort Precision;  /**< number of mantissa bits */

+};

+

+

+/**

+ * Limits for vertex and fragment programs/shaders.

+ */

+struct gl_program_constants

+{

+   /* logical limits */

+   GLuint MaxInstructions;

+   GLuint MaxAluInstructions;

+   GLuint MaxTexInstructions;

+   GLuint MaxTexIndirections;

+   GLuint MaxAttribs;

+   GLuint MaxTemps;

+   GLuint MaxAddressRegs;

+   GLuint MaxParameters;

+   GLuint MaxLocalParams;

+   GLuint MaxEnvParams;

+   /* native/hardware limits */

+   GLuint MaxNativeInstructions;

+   GLuint MaxNativeAluInstructions;

+   GLuint MaxNativeTexInstructions;

+   GLuint MaxNativeTexIndirections;

+   GLuint MaxNativeAttribs;

+   GLuint MaxNativeTemps;

+   GLuint MaxNativeAddressRegs;

+   GLuint MaxNativeParameters;

+   /* For shaders */

+   GLuint MaxUniformComponents;

+   /* GL_ARB_geometry_shader4 */

+   GLuint MaxGeometryTextureImageUnits;

+   GLuint MaxGeometryVaryingComponents;

+   GLuint MaxVertexVaryingComponents;

+   GLuint MaxGeometryUniformComponents;

+   GLuint MaxGeometryOutputVertices;

+   GLuint MaxGeometryTotalOutputComponents;

+   /* ES 2.0 and GL_ARB_ES2_compatibility */

+   struct gl_precision LowFloat, MediumFloat, HighFloat;

+   struct gl_precision LowInt, MediumInt, HighInt;

+};

+

+

+/**

+ * Constants which may be overridden by device driver during context creation

+ * but are never changed after that.

+ */

+struct gl_constants

+{

+   GLint MaxTextureMbytes;      /**< Max memory per image, in MB */

+   GLint MaxTextureLevels;      /**< Max mipmap levels. */ 

+   GLint Max3DTextureLevels;    /**< Max mipmap levels for 3D textures */

+   GLint MaxCubeTextureLevels;  /**< Max mipmap levels for cube textures */

+   GLint MaxArrayTextureLayers; /**< Max layers in array textures */

+   GLint MaxTextureRectSize;    /**< Max rectangle texture size, in pixes */

+   GLuint MaxTextureCoordUnits;

+   GLuint MaxTextureImageUnits;

+   GLuint MaxVertexTextureImageUnits;

+   GLuint MaxCombinedTextureImageUnits;

+   GLuint MaxTextureUnits;           /**< = MIN(CoordUnits, ImageUnits) */

+   GLfloat MaxTextureMaxAnisotropy;  /**< GL_EXT_texture_filter_anisotropic */

+   GLfloat MaxTextureLodBias;        /**< GL_EXT_texture_lod_bias */

+

+   GLuint MaxArrayLockSize;

+

+   GLint SubPixelBits;

+

+   GLfloat MinPointSize, MaxPointSize;	     /**< aliased */

+   GLfloat MinPointSizeAA, MaxPointSizeAA;   /**< antialiased */

+   GLfloat PointSizeGranularity;

+   GLfloat MinLineWidth, MaxLineWidth;       /**< aliased */

+   GLfloat MinLineWidthAA, MaxLineWidthAA;   /**< antialiased */

+   GLfloat LineWidthGranularity;

+

+   GLuint MaxColorTableSize;

+

+   GLuint MaxClipPlanes;

+   GLuint MaxLights;

+   GLfloat MaxShininess;                     /**< GL_NV_light_max_exponent */

+   GLfloat MaxSpotExponent;                  /**< GL_NV_light_max_exponent */

+

+   GLuint MaxViewportWidth, MaxViewportHeight;

+

+   struct gl_program_constants VertexProgram;   /**< GL_ARB_vertex_program */

+   struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */

+   struct gl_program_constants GeometryProgram;  /**< GL_ARB_geometry_shader4 */

+   GLuint MaxProgramMatrices;

+   GLuint MaxProgramMatrixStackDepth;

+

+   /** vertex array / buffer object bounds checking */

+   GLboolean CheckArrayBounds;

+

+   GLuint MaxDrawBuffers;    /**< GL_ARB_draw_buffers */

+

+   GLuint MaxColorAttachments;   /**< GL_EXT_framebuffer_object */

+   GLuint MaxRenderbufferSize;   /**< GL_EXT_framebuffer_object */

+   GLuint MaxSamples;            /**< GL_ARB_framebuffer_object */

+

+   GLuint MaxVarying;  /**< Number of float[4] varying parameters */

+

+   GLuint GLSLVersion;  /**< GLSL version supported (ex: 120 = 1.20) */

+

+   /** Which texture units support GL_ATI_envmap_bumpmap as targets */

+   GLbitfield SupportedBumpUnits;

+

+   /**

+    * Maximum amount of time, measured in nanseconds, that the server can wait.

+    */

+   GLuint64 MaxServerWaitTimeout;

+

+   /** GL_EXT_provoking_vertex */

+   GLboolean QuadsFollowProvokingVertexConvention;

+

+   /** OpenGL version 3.0 */

+   GLbitfield ContextFlags;  /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */

+

+   /** OpenGL version 3.2 */

+   GLbitfield ProfileMask;   /**< Mask of CONTEXT_x_PROFILE_BIT */

+

+   /** GL_EXT_transform_feedback */

+   GLuint MaxTransformFeedbackSeparateAttribs;

+   GLuint MaxTransformFeedbackSeparateComponents;

+   GLuint MaxTransformFeedbackInterleavedComponents;

+

+   /** GL_EXT_gpu_shader4 */

+   GLint MinProgramTexelOffset, MaxProgramTexelOffset;

+

+   /* GL_EXT_framebuffer_sRGB */

+   GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */

+};

+

+

+/**

+ * Enable flag for each OpenGL extension.  Different device drivers will

+ * enable different extensions at runtime.

+ */

+struct gl_extensions

+{

+   GLboolean dummy;  /* don't remove this! */

+   GLboolean dummy_true;  /* Set true by _mesa_init_extensions(). */

+   GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */

+   GLboolean ARB_ES2_compatibility;

+   GLboolean ARB_blend_func_extended;

+   GLboolean ARB_copy_buffer;

+   GLboolean ARB_depth_buffer_float;

+   GLboolean ARB_depth_clamp;

+   GLboolean ARB_depth_texture;

+   GLboolean ARB_draw_buffers;

+   GLboolean ARB_draw_buffers_blend;

+   GLboolean ARB_draw_elements_base_vertex;

+   GLboolean ARB_draw_instanced;

+   GLboolean ARB_fragment_coord_conventions;

+   GLboolean ARB_fragment_program;

+   GLboolean ARB_fragment_program_shadow;

+   GLboolean ARB_fragment_shader;

+   GLboolean ARB_framebuffer_object;

+   GLboolean ARB_explicit_attrib_location;

+   GLboolean ARB_geometry_shader4;

+   GLboolean ARB_half_float_pixel;

+   GLboolean ARB_half_float_vertex;

+   GLboolean ARB_instanced_arrays;

+   GLboolean ARB_map_buffer_range;

+   GLboolean ARB_multisample;

+   GLboolean ARB_multitexture;

+   GLboolean ARB_occlusion_query;

+   GLboolean ARB_occlusion_query2;

+   GLboolean ARB_point_sprite;

+   GLboolean ARB_sampler_objects;

+   GLboolean ARB_seamless_cube_map;

+   GLboolean ARB_shader_objects;

+   GLboolean ARB_shader_stencil_export;

+   GLboolean ARB_shading_language_100;

+   GLboolean ARB_shadow;

+   GLboolean ARB_shadow_ambient;

+   GLboolean ARB_sync;

+   GLboolean ARB_texture_border_clamp;

+   GLboolean ARB_texture_buffer_object;

+   GLboolean ARB_texture_compression;

+   GLboolean ARB_texture_compression_rgtc;

+   GLboolean ARB_texture_cube_map;

+   GLboolean ARB_texture_env_combine;

+   GLboolean ARB_texture_env_crossbar;

+   GLboolean ARB_texture_env_dot3;

+   GLboolean ARB_texture_float;

+   GLboolean ARB_texture_mirrored_repeat;

+   GLboolean ARB_texture_multisample;

+   GLboolean ARB_texture_non_power_of_two;

+   GLboolean ARB_texture_rg;

+   GLboolean ARB_texture_rgb10_a2ui;

+   GLboolean ARB_timer_query;

+   GLboolean ARB_transform_feedback2;

+   GLboolean ARB_transpose_matrix;

+   GLboolean ARB_uniform_buffer_object;

+   GLboolean ARB_vertex_array_object;

+   GLboolean ARB_vertex_buffer_object;

+   GLboolean ARB_vertex_program;

+   GLboolean ARB_vertex_shader;

+   GLboolean ARB_vertex_type_2_10_10_10_rev;

+   GLboolean ARB_window_pos;

+   GLboolean EXT_abgr;

+   GLboolean EXT_bgra;

+   GLboolean EXT_blend_color;

+   GLboolean EXT_blend_equation_separate;

+   GLboolean EXT_blend_func_separate;

+   GLboolean EXT_blend_logic_op;

+   GLboolean EXT_blend_minmax;

+   GLboolean EXT_blend_subtract;

+   GLboolean EXT_clip_volume_hint;

+   GLboolean EXT_compiled_vertex_array;

+   GLboolean EXT_copy_texture;

+   GLboolean EXT_depth_bounds_test;

+   GLboolean EXT_draw_buffers2;

+   GLboolean EXT_draw_range_elements;

+   GLboolean EXT_fog_coord;

+   GLboolean EXT_framebuffer_blit;

+   GLboolean EXT_framebuffer_multisample;

+   GLboolean EXT_framebuffer_object;

+   GLboolean EXT_framebuffer_sRGB;

+   GLboolean EXT_gpu_program_parameters;

+   GLboolean EXT_gpu_shader4;

+   GLboolean EXT_multi_draw_arrays;

+   GLboolean EXT_paletted_texture;

+   GLboolean EXT_packed_depth_stencil;

+   GLboolean EXT_packed_float;

+   GLboolean EXT_packed_pixels;

+   GLboolean EXT_pixel_buffer_object;

+   GLboolean EXT_point_parameters;

+   GLboolean EXT_polygon_offset;

+   GLboolean EXT_provoking_vertex;

+   GLboolean EXT_rescale_normal;

+   GLboolean EXT_shadow_funcs;

+   GLboolean EXT_secondary_color;

+   GLboolean EXT_separate_shader_objects;

+   GLboolean EXT_separate_specular_color;

+   GLboolean EXT_shared_texture_palette;

+   GLboolean EXT_stencil_wrap;

+   GLboolean EXT_stencil_two_side;

+   GLboolean EXT_subtexture;

+   GLboolean EXT_texture;

+   GLboolean EXT_texture_object;

+   GLboolean EXT_texture3D;

+   GLboolean EXT_texture_array;

+   GLboolean EXT_texture_compression_s3tc;

+   GLboolean EXT_texture_env_add;

+   GLboolean EXT_texture_env_combine;

+   GLboolean EXT_texture_env_dot3;

+   GLboolean EXT_texture_filter_anisotropic;

+   GLboolean EXT_texture_integer;

+   GLboolean EXT_texture_lod_bias;

+   GLboolean EXT_texture_mirror_clamp;

+   GLboolean EXT_texture_shared_exponent;

+   GLboolean EXT_texture_sRGB;

+   GLboolean EXT_texture_sRGB_decode;

+   GLboolean EXT_texture_swizzle;

+   GLboolean EXT_transform_feedback;

+   GLboolean EXT_timer_query;

+   GLboolean EXT_vertex_array;

+   GLboolean EXT_vertex_array_bgra;

+   GLboolean EXT_vertex_array_set;

+   GLboolean OES_standard_derivatives;

+   /* vendor extensions */

+   GLboolean AMD_conservative_depth;

+   GLboolean APPLE_client_storage;

+   GLboolean APPLE_packed_pixels;

+   GLboolean APPLE_vertex_array_object;

+   GLboolean APPLE_object_purgeable;

+   GLboolean ATI_envmap_bumpmap;

+   GLboolean ATI_texture_mirror_once;

+   GLboolean ATI_texture_env_combine3;

+   GLboolean ATI_fragment_shader;

+   GLboolean ATI_separate_stencil;

+   GLboolean IBM_rasterpos_clip;

+   GLboolean IBM_multimode_draw_arrays;

+   GLboolean MESA_pack_invert;

+   GLboolean MESA_resize_buffers;

+   GLboolean MESA_ycbcr_texture;

+   GLboolean MESA_texture_array;

+   GLboolean MESA_texture_signed_rgba;

+   GLboolean NV_blend_square;

+   GLboolean NV_conditional_render;

+   GLboolean NV_fragment_program;

+   GLboolean NV_fragment_program_option;

+   GLboolean NV_light_max_exponent;

+   GLboolean NV_point_sprite;

+   GLboolean NV_primitive_restart;

+   GLboolean NV_texgen_reflection;

+   GLboolean NV_texture_env_combine4;

+   GLboolean NV_texture_rectangle;

+   GLboolean NV_vertex_program;

+   GLboolean NV_vertex_program1_1;

+   GLboolean OES_read_format;

+   GLboolean SGI_texture_color_table;

+   GLboolean SGIS_generate_mipmap;

+   GLboolean SGIS_texture_edge_clamp;

+   GLboolean SGIS_texture_lod;

+   GLboolean TDFX_texture_compression_FXT1;

+   GLboolean S3_s3tc;

+   GLboolean OES_EGL_image;

+   GLboolean OES_draw_texture;

+   GLboolean EXT_texture_format_BGRA8888;

+   GLboolean extension_sentinel;

+   /** The extension string */

+   const GLubyte *String;

+   /** Number of supported extensions */

+   GLuint Count;

+};

+

+

+/**

+ * A stack of matrices (projection, modelview, color, texture, etc).

+ */

+struct gl_matrix_stack

+{

+   GLmatrix *Top;      /**< points into Stack */

+   GLmatrix *Stack;    /**< array [MaxDepth] of GLmatrix */

+   GLuint Depth;       /**< 0 <= Depth < MaxDepth */

+   GLuint MaxDepth;    /**< size of Stack[] array */

+   GLuint DirtyFlag;   /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */

+};

+

+

+/**

+ * \name Bits for image transfer operations 

+ * \sa __struct gl_contextRec::ImageTransferState.

+ */

+/*@{*/

+#define IMAGE_SCALE_BIAS_BIT                      0x1

+#define IMAGE_SHIFT_OFFSET_BIT                    0x2

+#define IMAGE_MAP_COLOR_BIT                       0x4

+#define IMAGE_CLAMP_BIT                           0x800

+

+

+/** Pixel Transfer ops */

+#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT |			\

+		    IMAGE_SHIFT_OFFSET_BIT |			\

+		    IMAGE_MAP_COLOR_BIT)

+

+/**

+ * \name Bits to indicate what state has changed.  

+ */

+/*@{*/

+#define _NEW_MODELVIEW         (1 << 0)   /**< gl_context::ModelView */

+#define _NEW_PROJECTION        (1 << 1)   /**< gl_context::Projection */

+#define _NEW_TEXTURE_MATRIX    (1 << 2)   /**< gl_context::TextureMatrix */

+#define _NEW_COLOR             (1 << 3)   /**< gl_context::Color */

+#define _NEW_DEPTH             (1 << 4)   /**< gl_context::Depth */

+#define _NEW_EVAL              (1 << 5)   /**< gl_context::Eval, EvalMap */

+#define _NEW_FOG               (1 << 6)   /**< gl_context::Fog */

+#define _NEW_HINT              (1 << 7)   /**< gl_context::Hint */

+#define _NEW_LIGHT             (1 << 8)   /**< gl_context::Light */

+#define _NEW_LINE              (1 << 9)   /**< gl_context::Line */

+#define _NEW_PIXEL             (1 << 10)  /**< gl_context::Pixel */

+#define _NEW_POINT             (1 << 11)  /**< gl_context::Point */

+#define _NEW_POLYGON           (1 << 12)  /**< gl_context::Polygon */

+#define _NEW_POLYGONSTIPPLE    (1 << 13)  /**< gl_context::PolygonStipple */

+#define _NEW_SCISSOR           (1 << 14)  /**< gl_context::Scissor */

+#define _NEW_STENCIL           (1 << 15)  /**< gl_context::Stencil */

+#define _NEW_TEXTURE           (1 << 16)  /**< gl_context::Texture */

+#define _NEW_TRANSFORM         (1 << 17)  /**< gl_context::Transform */

+#define _NEW_VIEWPORT          (1 << 18)  /**< gl_context::Viewport */

+#define _NEW_PACKUNPACK        (1 << 19)  /**< gl_context::Pack, Unpack */

+#define _NEW_ARRAY             (1 << 20)  /**< gl_context::Array */

+#define _NEW_RENDERMODE        (1 << 21)  /**< gl_context::RenderMode, etc */

+#define _NEW_BUFFERS           (1 << 22)  /**< gl_context::Visual, DrawBuffer, */

+#define _NEW_CURRENT_ATTRIB    (1 << 23)  /**< gl_context::Current */

+#define _NEW_MULTISAMPLE       (1 << 24)  /**< gl_context::Multisample */

+#define _NEW_TRACK_MATRIX      (1 << 25)  /**< gl_context::VertexProgram */

+#define _NEW_PROGRAM           (1 << 26)  /**< New program/shader state */

+#define _NEW_PROGRAM_CONSTANTS (1 << 27)

+#define _NEW_BUFFER_OBJECT     (1 << 28)

+#define _NEW_ALL ~0

+/*@}*/

+

+

+/**

+ * \name Bits to track array state changes 

+ *

+ * Also used to summarize array enabled.

+ */

+/*@{*/

+#define _NEW_ARRAY_VERTEX           VERT_BIT_POS

+#define _NEW_ARRAY_WEIGHT           VERT_BIT_WEIGHT

+#define _NEW_ARRAY_NORMAL           VERT_BIT_NORMAL

+#define _NEW_ARRAY_COLOR0           VERT_BIT_COLOR0

+#define _NEW_ARRAY_COLOR1           VERT_BIT_COLOR1

+#define _NEW_ARRAY_FOGCOORD         VERT_BIT_FOG

+#define _NEW_ARRAY_INDEX            VERT_BIT_COLOR_INDEX

+#define _NEW_ARRAY_EDGEFLAG         VERT_BIT_EDGEFLAG

+#define _NEW_ARRAY_POINT_SIZE       VERT_BIT_COLOR_INDEX  /* aliased */

+#define _NEW_ARRAY_TEXCOORD_0       VERT_BIT_TEX0

+#define _NEW_ARRAY_TEXCOORD_1       VERT_BIT_TEX1

+#define _NEW_ARRAY_TEXCOORD_2       VERT_BIT_TEX2

+#define _NEW_ARRAY_TEXCOORD_3       VERT_BIT_TEX3

+#define _NEW_ARRAY_TEXCOORD_4       VERT_BIT_TEX4

+#define _NEW_ARRAY_TEXCOORD_5       VERT_BIT_TEX5

+#define _NEW_ARRAY_TEXCOORD_6       VERT_BIT_TEX6

+#define _NEW_ARRAY_TEXCOORD_7       VERT_BIT_TEX7

+#define _NEW_ARRAY_ATTRIB_0         VERT_BIT_GENERIC0  /* start at bit 16 */

+#define _NEW_ARRAY_ALL              0xffffffff

+

+

+#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))

+#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i))

+/*@}*/

+

+

+

+/**

+ * \name A bunch of flags that we think might be useful to drivers.

+ * 

+ * Set in the __struct gl_contextRec::_TriangleCaps bitfield.

+ */

+/*@{*/

+#define DD_FLATSHADE                0x1

+#define DD_SEPARATE_SPECULAR        0x2

+#define DD_TRI_CULL_FRONT_BACK      0x4 /* special case on some hw */

+#define DD_TRI_LIGHT_TWOSIDE        0x8

+#define DD_TRI_UNFILLED             0x10

+#define DD_TRI_SMOOTH               0x20

+#define DD_TRI_STIPPLE              0x40

+#define DD_TRI_OFFSET               0x80

+#define DD_LINE_SMOOTH              0x100

+#define DD_LINE_STIPPLE             0x200

+#define DD_POINT_SMOOTH             0x400

+#define DD_POINT_ATTEN              0x800

+#define DD_TRI_TWOSTENCIL           0x1000

+/*@}*/

+

+

+/**

+ * \name Define the state changes under which each of these bits might change

+ */

+/*@{*/

+#define _DD_NEW_FLATSHADE                _NEW_LIGHT

+#define _DD_NEW_SEPARATE_SPECULAR        (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)

+#define _DD_NEW_TRI_CULL_FRONT_BACK      _NEW_POLYGON

+#define _DD_NEW_TRI_LIGHT_TWOSIDE        _NEW_LIGHT

+#define _DD_NEW_TRI_UNFILLED             _NEW_POLYGON

+#define _DD_NEW_TRI_SMOOTH               _NEW_POLYGON

+#define _DD_NEW_TRI_STIPPLE              _NEW_POLYGON

+#define _DD_NEW_TRI_OFFSET               _NEW_POLYGON

+#define _DD_NEW_LINE_SMOOTH              _NEW_LINE

+#define _DD_NEW_LINE_STIPPLE             _NEW_LINE

+#define _DD_NEW_LINE_WIDTH               _NEW_LINE

+#define _DD_NEW_POINT_SMOOTH             _NEW_POINT

+#define _DD_NEW_POINT_SIZE               _NEW_POINT

+#define _DD_NEW_POINT_ATTEN              _NEW_POINT

+/*@}*/

+

+

+/**

+ * Composite state flags

+ */

+/*@{*/

+#define _MESA_NEW_NEED_EYE_COORDS         (_NEW_LIGHT |		\

+                                           _NEW_TEXTURE |	\

+                                           _NEW_POINT |		\

+                                           _NEW_PROGRAM |	\

+                                           _NEW_MODELVIEW)

+

+#define _MESA_NEW_NEED_NORMALS            (_NEW_LIGHT |		\

+                                           _NEW_TEXTURE)

+

+#define _MESA_NEW_TRANSFER_STATE          (_NEW_PIXEL)

+/*@}*/

+

+

+

+

+/* This has to be included here. */

+#include "dd.h"

+

+

+/**

+ * Display list flags.

+ * Strictly this is a tnl-private concept, but it doesn't seem

+ * worthwhile adding a tnl private structure just to hold this one bit

+ * of information:

+ */

+#define DLIST_DANGLING_REFS     0x1 

+

+

+/** Opaque declaration of display list payload data type */

+union gl_dlist_node;

+

+

+/**

+ * Provide a location where information about a display list can be

+ * collected.  Could be extended with driverPrivate structures,

+ * etc. in the future.

+ */

+struct gl_display_list

+{

+   GLuint Name;

+   GLbitfield Flags;  /**< DLIST_x flags */

+   /** The dlist commands are in a linked list of nodes */

+   union gl_dlist_node *Head;

+};

+

+

+/**

+ * State used during display list compilation and execution.

+ */

+struct gl_dlist_state

+{

+   GLuint CallDepth;		/**< Current recursion calling depth */

+

+   struct gl_display_list *CurrentList; /**< List currently being compiled */

+   union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */

+   GLuint CurrentPos;		/**< Index into current block of nodes */

+

+   GLvertexformat ListVtxfmt;

+

+   GLubyte ActiveAttribSize[VERT_ATTRIB_MAX];

+   GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4];

+   

+   GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX];

+   GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4];

+

+   GLubyte ActiveIndex;

+   GLfloat CurrentIndex;

+   

+   GLubyte ActiveEdgeFlag;

+   GLboolean CurrentEdgeFlag;

+

+   struct {

+      /* State known to have been set by the currently-compiling display

+       * list.  Used to eliminate some redundant state changes.

+       */

+      GLenum ShadeModel;

+   } Current;

+};

+

+

+/**

+ * Enum for the OpenGL APIs we know about and may support.

+ */

+typedef enum

+{

+   API_OPENGL,

+   API_OPENGLES,

+   API_OPENGLES2

+} gl_api;

+

+

+/**

+ * Mesa rendering context.

+ *

+ * This is the central context data structure for Mesa.  Almost all

+ * OpenGL state is contained in this structure.

+ * Think of this as a base class from which device drivers will derive

+ * sub classes.

+ *

+ * The struct gl_context typedef names this structure.

+ */

+struct gl_context

+{

+   /** State possibly shared with other contexts in the address space */

+   struct gl_shared_state *Shared;

+

+   /** \name API function pointer tables */

+   /*@{*/

+   gl_api API;

+   struct _glapi_table *Save;	/**< Display list save functions */

+   struct _glapi_table *Exec;	/**< Execute functions */

+   struct _glapi_table *CurrentDispatch;  /**< == Save or Exec !! */

+   /*@}*/

+

+   struct gl_config Visual;

+   struct gl_framebuffer *DrawBuffer;	/**< buffer for writing */

+   struct gl_framebuffer *ReadBuffer;	/**< buffer for reading */

+   struct gl_framebuffer *WinSysDrawBuffer;  /**< set with MakeCurrent */

+   struct gl_framebuffer *WinSysReadBuffer;  /**< set with MakeCurrent */

+

+   /**

+    * Device driver function pointer table

+    */

+   struct dd_function_table Driver;

+

+   void *DriverCtx;	/**< Points to device driver context/state */

+

+   /** Core/Driver constants */

+   struct gl_constants Const;

+

+   /** \name The various 4x4 matrix stacks */

+   /*@{*/

+   struct gl_matrix_stack ModelviewMatrixStack;

+   struct gl_matrix_stack ProjectionMatrixStack;

+   struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS];

+   struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES];

+   struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */

+   /*@}*/

+

+   /** Combined modelview and projection matrix */

+   GLmatrix _ModelProjectMatrix;

+

+   /** \name Display lists */

+   struct gl_dlist_state ListState;

+

+   GLboolean ExecuteFlag;	/**< Execute GL commands? */

+   GLboolean CompileFlag;	/**< Compile GL commands into display list? */

+

+   /** Extension information */

+   struct gl_extensions Extensions;

+

+   /** Version info */

+   GLuint VersionMajor, VersionMinor;

+   char *VersionString;

+

+   /** \name State attribute stack (for glPush/PopAttrib) */

+   /*@{*/

+   GLuint AttribStackDepth;

+   struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH];

+   /*@}*/

+

+   /** \name Renderer attribute groups

+    * 

+    * We define a struct for each attribute group to make pushing and popping

+    * attributes easy.  Also it's a good organization.

+    */

+   /*@{*/

+   struct gl_accum_attrib	Accum;		/**< Accum buffer attributes */

+   struct gl_colorbuffer_attrib	Color;		/**< Color buffer attributes */

+   struct gl_current_attrib	Current;	/**< Current attributes */

+   struct gl_depthbuffer_attrib	Depth;		/**< Depth buffer attributes */

+   struct gl_eval_attrib	Eval;		/**< Eval attributes */

+   struct gl_fog_attrib		Fog;		/**< Fog attributes */

+   struct gl_hint_attrib	Hint;		/**< Hint attributes */

+   struct gl_light_attrib	Light;		/**< Light attributes */

+   struct gl_line_attrib	Line;		/**< Line attributes */

+   struct gl_list_attrib	List;		/**< List attributes */

+   struct gl_multisample_attrib Multisample;

+   struct gl_pixel_attrib	Pixel;		/**< Pixel attributes */

+   struct gl_point_attrib	Point;		/**< Point attributes */

+   struct gl_polygon_attrib	Polygon;	/**< Polygon attributes */

+   GLuint PolygonStipple[32];			/**< Polygon stipple */

+   struct gl_scissor_attrib	Scissor;	/**< Scissor attributes */

+   struct gl_stencil_attrib	Stencil;	/**< Stencil buffer attributes */

+   struct gl_texture_attrib	Texture;	/**< Texture attributes */

+   struct gl_transform_attrib	Transform;	/**< Transformation attributes */

+   struct gl_viewport_attrib	Viewport;	/**< Viewport attributes */

+   /*@}*/

+

+   /** \name Client attribute stack */

+   /*@{*/

+   GLuint ClientAttribStackDepth;

+   struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH];

+   /*@}*/

+

+   /** \name Client attribute groups */

+   /*@{*/

+   struct gl_array_attrib	Array;	/**< Vertex arrays */

+   struct gl_pixelstore_attrib	Pack;	/**< Pixel packing */

+   struct gl_pixelstore_attrib	Unpack;	/**< Pixel unpacking */

+   struct gl_pixelstore_attrib	DefaultPacking;	/**< Default params */

+   /*@}*/

+

+   /** \name Other assorted state (not pushed/popped on attribute stack) */

+   /*@{*/

+   struct gl_pixelmaps          PixelMaps;

+

+   struct gl_evaluators EvalMap;   /**< All evaluators */

+   struct gl_feedback   Feedback;  /**< Feedback */

+   struct gl_selection  Select;    /**< Selection */

+

+   struct gl_program_state Program;  /**< general program state */

+   struct gl_vertex_program_state VertexProgram;

+   struct gl_fragment_program_state FragmentProgram;

+   struct gl_geometry_program_state GeometryProgram;

+   struct gl_ati_fragment_shader_state ATIFragmentShader;

+

+   struct gl_shader_state Shader; /**< GLSL shader object state */

+   struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES];

+

+   struct gl_query_state Query;  /**< occlusion, timer queries */

+

+   struct gl_transform_feedback TransformFeedback;

+

+   struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */

+   struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */

+   /*@}*/

+

+   struct gl_meta_state *Meta;  /**< for "meta" operations */

+

+   /* GL_EXT_framebuffer_object */

+   struct gl_renderbuffer *CurrentRenderbuffer;

+

+   GLenum ErrorValue;        /**< Last error code */

+

+   /**

+    * Recognize and silence repeated error debug messages in buggy apps.

+    */

+   const char *ErrorDebugFmtString;

+   GLuint ErrorDebugCount;

+

+   GLenum RenderMode;        /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */

+   GLbitfield NewState;      /**< bitwise-or of _NEW_* flags */

+

+   GLboolean ViewportInitialized;  /**< has viewport size been initialized? */

+

+   GLbitfield varying_vp_inputs;  /**< mask of VERT_BIT_* flags */

+

+   /** \name Derived state */

+   /*@{*/

+   /** Bitwise-or of DD_* flags.  Note that this bitfield may be used before

+    * state validation so they need to always be current.

+    */

+   GLbitfield _TriangleCaps;

+   GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */

+   GLfloat _EyeZDir[3];

+   GLfloat _ModelViewInvScale;

+   GLboolean _NeedEyeCoords;

+   GLboolean _ForceEyeCoords; 

+

+   GLuint TextureStateTimestamp; /**< detect changes to shared state */

+

+   struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */

+   struct gl_shine_tab *_ShineTabList;  /**< MRU list of inactive shine tables */

+   /**@}*/

+

+   struct gl_list_extensions *ListExt; /**< driver dlist extensions */

+

+   /** \name For debugging/development only */

+   /*@{*/

+   GLboolean FirstTimeCurrent;

+   /*@}*/

+

+   /** Dither disable via MESA_NO_DITHER env var */

+   GLboolean NoDither;

+

+   /** software compression/decompression supported or not */

+   GLboolean Mesa_DXTn;

+

+   GLboolean TextureFormatSupported[MESA_FORMAT_COUNT];

+

+   /** 

+    * Use dp4 (rather than mul/mad) instructions for position

+    * transformation?

+    */

+   GLboolean mvp_with_dp4;

+

+   /**

+    * \name Hooks for module contexts.  

+    *

+    * These will eventually live in the driver or elsewhere.

+    */

+   /*@{*/

+   void *swrast_context;

+   void *swsetup_context;

+   void *swtnl_context;

+   void *swtnl_im;

+   struct st_context *st;

+   void *aelt_context;

+   /*@}*/

+};

+

+

+#ifdef DEBUG

+extern int MESA_VERBOSE;

+extern int MESA_DEBUG_FLAGS;

+# define MESA_FUNCTION __FUNCTION__

+#else

+# define MESA_VERBOSE 0

+# define MESA_DEBUG_FLAGS 0

+# define MESA_FUNCTION "a function"

+# ifndef NDEBUG

+#  define NDEBUG

+# endif

+#endif

+

+

+/** The MESA_VERBOSE var is a bitmask of these flags */

+enum _verbose

+{

+   VERBOSE_VARRAY		= 0x0001,

+   VERBOSE_TEXTURE		= 0x0002,

+   VERBOSE_MATERIAL		= 0x0004,

+   VERBOSE_PIPELINE		= 0x0008,

+   VERBOSE_DRIVER		= 0x0010,

+   VERBOSE_STATE		= 0x0020,

+   VERBOSE_API			= 0x0040,

+   VERBOSE_DISPLAY_LIST		= 0x0100,

+   VERBOSE_LIGHTING		= 0x0200,

+   VERBOSE_PRIMS		= 0x0400,

+   VERBOSE_VERTS		= 0x0800,

+   VERBOSE_DISASSEM		= 0x1000,

+   VERBOSE_DRAW                 = 0x2000,

+   VERBOSE_SWAPBUFFERS          = 0x4000

+};

+

+

+/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */

+enum _debug

+{

+   DEBUG_ALWAYS_FLUSH		= 0x1

+};

+

+

+

+#endif /* MTYPES_H */

diff --git a/mesalib/src/mesa/main/queryobj.c b/mesalib/src/mesa/main/queryobj.c
index fa35c6ce5..dc9f18a65 100644
--- a/mesalib/src/mesa/main/queryobj.c
+++ b/mesalib/src/mesa/main/queryobj.c
@@ -1,623 +1,623 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include "glheader.h"
-#include "context.h"
-#include "enums.h"
-#include "hash.h"
-#include "imports.h"
-#include "queryobj.h"
-#include "mfeatures.h"
-#include "mtypes.h"
-#include "main/dispatch.h"
-
-
-#if FEATURE_queryobj
-
-
-/**
- * Allocate a new query object.  This is a fallback routine called via
- * ctx->Driver.NewQueryObject().
- * \param ctx - rendering context
- * \param id - the new object's ID
- * \return pointer to new query_object object or NULL if out of memory.
- */
-static struct gl_query_object *
-_mesa_new_query_object(struct gl_context *ctx, GLuint id)
-{
-   struct gl_query_object *q = MALLOC_STRUCT(gl_query_object);
-   (void) ctx;
-   if (q) {
-      q->Id = id;
-      q->Result = 0;
-      q->Active = GL_FALSE;
-      q->Ready = GL_TRUE;   /* correct, see spec */
-   }
-   return q;
-}
-
-
-/**
- * Begin a query.  Software driver fallback.
- * Called via ctx->Driver.BeginQuery().
- */
-static void
-_mesa_begin_query(struct gl_context *ctx, struct gl_query_object *q)
-{
-   /* no-op */
-}
-
-
-/**
- * End a query.  Software driver fallback.
- * Called via ctx->Driver.EndQuery().
- */
-static void
-_mesa_end_query(struct gl_context *ctx, struct gl_query_object *q)
-{
-   q->Ready = GL_TRUE;
-}
-
-
-/**
- * Wait for query to complete.  Software driver fallback.
- * Called via ctx->Driver.WaitQuery().
- */
-static void
-_mesa_wait_query(struct gl_context *ctx, struct gl_query_object *q)
-{
-   /* For software drivers, _mesa_end_query() should have completed the query.
-    * For real hardware, implement a proper WaitQuery() driver function,
-    * which may require issuing a flush.
-    */
-   assert(q->Ready);
-}
-
-
-/**
- * Check if a query results are ready.  Software driver fallback.
- * Called via ctx->Driver.CheckQuery().
- */
-static void
-_mesa_check_query(struct gl_context *ctx, struct gl_query_object *q)
-{
-   /* No-op for sw rendering.
-    * HW drivers may need to flush at this time.
-    */
-}
-
-
-/**
- * Delete a query object.  Called via ctx->Driver.DeleteQuery().
- * Not removed from hash table here.
- */
-static void
-_mesa_delete_query(struct gl_context *ctx, struct gl_query_object *q)
-{
-   free(q);
-}
-
-
-void
-_mesa_init_query_object_functions(struct dd_function_table *driver)
-{
-   driver->NewQueryObject = _mesa_new_query_object;
-   driver->DeleteQuery = _mesa_delete_query;
-   driver->BeginQuery = _mesa_begin_query;
-   driver->EndQuery = _mesa_end_query;
-   driver->WaitQuery = _mesa_wait_query;
-   driver->CheckQuery = _mesa_check_query;
-}
-
-
-/**
- * Return pointer to the query object binding point for the given target.
- * \return NULL if invalid target, else the address of binding point
- */
-static struct gl_query_object **
-get_query_binding_point(struct gl_context *ctx, GLenum target)
-{
-   switch (target) {
-   case GL_SAMPLES_PASSED_ARB:
-      if (ctx->Extensions.ARB_occlusion_query)
-         return &ctx->Query.CurrentOcclusionObject;
-      else
-         return NULL;
-   case GL_ANY_SAMPLES_PASSED:
-      if (ctx->Extensions.ARB_occlusion_query2)
-         return &ctx->Query.CurrentOcclusionObject;
-      else
-         return NULL;
-   case GL_TIME_ELAPSED_EXT:
-      if (ctx->Extensions.EXT_timer_query)
-         return &ctx->Query.CurrentTimerObject;
-      else
-         return NULL;
-#if FEATURE_EXT_transform_feedback
-   case GL_PRIMITIVES_GENERATED:
-      if (ctx->Extensions.EXT_transform_feedback)
-         return &ctx->Query.PrimitivesGenerated;
-      else
-         return NULL;
-   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
-      if (ctx->Extensions.EXT_transform_feedback)
-         return &ctx->Query.PrimitivesWritten;
-      else
-         return NULL;
-#endif
-   default:
-      return NULL;
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_GenQueriesARB(GLsizei n, GLuint *ids)
-{
-   GLuint first;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGenQueries(%d)\n", n);
-
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGenQueriesARB(n < 0)");
-      return;
-   }
-
-   /* No query objects can be active at this time! */
-   if (ctx->Query.CurrentOcclusionObject ||
-       ctx->Query.CurrentTimerObject) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGenQueriesARB");
-      return;
-   }
-
-   first = _mesa_HashFindFreeKeyBlock(ctx->Query.QueryObjects, n);
-   if (first) {
-      GLsizei i;
-      for (i = 0; i < n; i++) {
-         struct gl_query_object *q
-            = ctx->Driver.NewQueryObject(ctx, first + i);
-         if (!q) {
-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenQueriesARB");
-            return;
-         }
-         ids[i] = first + i;
-         _mesa_HashInsert(ctx->Query.QueryObjects, first + i, q);
-      }
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_DeleteQueriesARB(GLsizei n, const GLuint *ids)
-{
-   GLint i;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glDeleeteQueries(%d)\n", n);
-
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteQueriesARB(n < 0)");
-      return;
-   }
-
-   /* No query objects can be active at this time! */
-   if (ctx->Query.CurrentOcclusionObject ||
-       ctx->Query.CurrentTimerObject) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glDeleteQueriesARB");
-      return;
-   }
-
-   for (i = 0; i < n; i++) {
-      if (ids[i] > 0) {
-         struct gl_query_object *q = _mesa_lookup_query_object(ctx, ids[i]);
-         if (q) {
-            ASSERT(!q->Active); /* should be caught earlier */
-            _mesa_HashRemove(ctx->Query.QueryObjects, ids[i]);
-            ctx->Driver.DeleteQuery(ctx, q);
-         }
-      }
-   }
-}
-
-
-GLboolean GLAPIENTRY
-_mesa_IsQueryARB(GLuint id)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glIsQuery(%u)\n", id);
-
-   if (id && _mesa_lookup_query_object(ctx, id))
-      return GL_TRUE;
-   else
-      return GL_FALSE;
-}
-
-
-static void GLAPIENTRY
-_mesa_BeginQueryARB(GLenum target, GLuint id)
-{
-   struct gl_query_object *q, **bindpt;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glBeginQuery(%s, %u)\n",
-                  _mesa_lookup_enum_by_nr(target), id);
-
-   FLUSH_VERTICES(ctx, _NEW_DEPTH);
-
-   bindpt = get_query_binding_point(ctx, target);
-   if (!bindpt) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBeginQueryARB(target)");
-      return;
-   }
-
-   if (id == 0) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginQueryARB(id==0)");
-      return;
-   }
-
-   q = _mesa_lookup_query_object(ctx, id);
-   if (!q) {
-      /* create new object */
-      q = ctx->Driver.NewQueryObject(ctx, id);
-      if (!q) {
-         _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBeginQueryARB");
-         return;
-      }
-      _mesa_HashInsert(ctx->Query.QueryObjects, id, q);
-   }
-   else {
-      /* pre-existing object */
-      if (q->Active) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBeginQueryARB(query already active)");
-         return;
-      }
-   }
-
-   q->Target = target;
-   q->Active = GL_TRUE;
-   q->Result = 0;
-   q->Ready = GL_FALSE;
-
-   /* XXX should probably refcount query objects */
-   *bindpt = q;
-
-   ctx->Driver.BeginQuery(ctx, q);
-}
-
-
-static void GLAPIENTRY
-_mesa_EndQueryARB(GLenum target)
-{
-   struct gl_query_object *q, **bindpt;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glEndQuery(%s)\n", _mesa_lookup_enum_by_nr(target));
-
-   FLUSH_VERTICES(ctx, _NEW_DEPTH);
-
-   bindpt = get_query_binding_point(ctx, target);
-   if (!bindpt) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glEndQueryARB(target)");
-      return;
-   }
-
-   /* XXX should probably refcount query objects */
-   q = *bindpt;
-   *bindpt = NULL;
-
-   if (!q || !q->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glEndQueryARB(no matching glBeginQueryARB)");
-      return;
-   }
-
-   q->Active = GL_FALSE;
-   ctx->Driver.EndQuery(ctx, q);
-}
-
-
-void GLAPIENTRY
-_mesa_GetQueryivARB(GLenum target, GLenum pname, GLint *params)
-{
-   struct gl_query_object *q, **bindpt;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGetQueryiv(%s, %s)\n",
-                  _mesa_lookup_enum_by_nr(target),
-                  _mesa_lookup_enum_by_nr(pname));
-
-   bindpt = get_query_binding_point(ctx, target);
-   if (!bindpt) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryARB(target)");
-      return;
-   }
-
-   q = *bindpt;
-
-   switch (pname) {
-      case GL_QUERY_COUNTER_BITS_ARB:
-         *params = 8 * sizeof(q->Result);
-         break;
-      case GL_CURRENT_QUERY_ARB:
-         *params = q ? q->Id : 0;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryivARB(pname)");
-         return;
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_GetQueryObjectivARB(GLuint id, GLenum pname, GLint *params)
-{
-   struct gl_query_object *q = NULL;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGetQueryObjectiv(%u, %s)\n", id,
-                  _mesa_lookup_enum_by_nr(pname));
-
-   if (id)
-      q = _mesa_lookup_query_object(ctx, id);
-
-   if (!q || q->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetQueryObjectivARB(id=%d is invalid or active)", id);
-      return;
-   }
-
-   switch (pname) {
-      case GL_QUERY_RESULT_ARB:
-         if (!q->Ready)
-            ctx->Driver.WaitQuery(ctx, q);
-         /* if result is too large for returned type, clamp to max value */
-         if (q->Target == GL_ANY_SAMPLES_PASSED) {
-            if (q->Result)
-               *params = GL_TRUE;
-            else
-               *params = GL_FALSE;
-         } else {
-            if (q->Result > 0x7fffffff) {
-               *params = 0x7fffffff;
-            }
-            else {
-               *params = (GLint)q->Result;
-            }
-         }
-         break;
-      case GL_QUERY_RESULT_AVAILABLE_ARB:
-	 if (!q->Ready)
-	    ctx->Driver.CheckQuery( ctx, q );
-         *params = q->Ready;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectivARB(pname)");
-         return;
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_GetQueryObjectuivARB(GLuint id, GLenum pname, GLuint *params)
-{
-   struct gl_query_object *q = NULL;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGetQueryObjectuiv(%u, %s)\n", id,
-                  _mesa_lookup_enum_by_nr(pname));
-
-   if (id)
-      q = _mesa_lookup_query_object(ctx, id);
-
-   if (!q || q->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetQueryObjectuivARB(id=%d is invalid or active)", id);
-      return;
-   }
-
-   switch (pname) {
-      case GL_QUERY_RESULT_ARB:
-         if (!q->Ready)
-            ctx->Driver.WaitQuery(ctx, q);
-         /* if result is too large for returned type, clamp to max value */
-         if (q->Target == GL_ANY_SAMPLES_PASSED) {
-            if (q->Result)
-               *params = GL_TRUE;
-            else
-               *params = GL_FALSE;
-         } else {
-            if (q->Result > 0xffffffff) {
-               *params = 0xffffffff;
-            }
-            else {
-               *params = (GLuint)q->Result;
-            }
-         }
-         break;
-      case GL_QUERY_RESULT_AVAILABLE_ARB:
-	 if (!q->Ready)
-	    ctx->Driver.CheckQuery( ctx, q );
-         *params = q->Ready;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectuivARB(pname)");
-         return;
-   }
-}
-
-
-/**
- * New with GL_EXT_timer_query
- */
-static void GLAPIENTRY
-_mesa_GetQueryObjecti64vEXT(GLuint id, GLenum pname, GLint64EXT *params)
-{
-   struct gl_query_object *q = NULL;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGetQueryObjecti64v(%u, %s)\n", id,
-                  _mesa_lookup_enum_by_nr(pname));
-
-   if (id)
-      q = _mesa_lookup_query_object(ctx, id);
-
-   if (!q || q->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetQueryObjectui64vARB(id=%d is invalid or active)", id);
-      return;
-   }
-
-   switch (pname) {
-      case GL_QUERY_RESULT_ARB:
-         if (!q->Ready)
-            ctx->Driver.WaitQuery(ctx, q);
-         *params = q->Result;
-         break;
-      case GL_QUERY_RESULT_AVAILABLE_ARB:
-	 if (!q->Ready)
-	    ctx->Driver.CheckQuery( ctx, q );
-         *params = q->Ready;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjecti64vARB(pname)");
-         return;
-   }
-}
-
-
-/**
- * New with GL_EXT_timer_query
- */
-static void GLAPIENTRY
-_mesa_GetQueryObjectui64vEXT(GLuint id, GLenum pname, GLuint64EXT *params)
-{
-   struct gl_query_object *q = NULL;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glGetQueryObjectui64v(%u, %s)\n", id,
-                  _mesa_lookup_enum_by_nr(pname));
-
-   if (id)
-      q = _mesa_lookup_query_object(ctx, id);
-
-   if (!q || q->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetQueryObjectuui64vARB(id=%d is invalid or active)", id);
-      return;
-   }
-
-   switch (pname) {
-      case GL_QUERY_RESULT_ARB:
-         if (!q->Ready)
-            ctx->Driver.WaitQuery(ctx, q);
-         *params = q->Result;
-         break;
-      case GL_QUERY_RESULT_AVAILABLE_ARB:
-	 if (!q->Ready)
-	    ctx->Driver.CheckQuery( ctx, q );
-         *params = q->Ready;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectui64vARB(pname)");
-         return;
-   }
-}
-
-
-void
-_mesa_init_queryobj_dispatch(struct _glapi_table *disp)
-{
-   SET_GenQueriesARB(disp, _mesa_GenQueriesARB);
-   SET_DeleteQueriesARB(disp, _mesa_DeleteQueriesARB);
-   SET_IsQueryARB(disp, _mesa_IsQueryARB);
-   SET_BeginQueryARB(disp, _mesa_BeginQueryARB);
-   SET_EndQueryARB(disp, _mesa_EndQueryARB);
-   SET_GetQueryivARB(disp, _mesa_GetQueryivARB);
-   SET_GetQueryObjectivARB(disp, _mesa_GetQueryObjectivARB);
-   SET_GetQueryObjectuivARB(disp, _mesa_GetQueryObjectuivARB);
-
-   SET_GetQueryObjecti64vEXT(disp, _mesa_GetQueryObjecti64vEXT);
-   SET_GetQueryObjectui64vEXT(disp, _mesa_GetQueryObjectui64vEXT);
-}
-
-
-#endif /* FEATURE_queryobj */
-
-
-/**
- * Allocate/init the context state related to query objects.
- */
-void
-_mesa_init_queryobj(struct gl_context *ctx)
-{
-   ctx->Query.QueryObjects = _mesa_NewHashTable();
-   ctx->Query.CurrentOcclusionObject = NULL;
-}
-
-
-/**
- * Callback for deleting a query object.  Called by _mesa_HashDeleteAll().
- */
-static void
-delete_queryobj_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_query_object *q= (struct gl_query_object *) data;
-   struct gl_context *ctx = (struct gl_context *)userData;
-   ctx->Driver.DeleteQuery(ctx, q);
-}
-
-
-/**
- * Free the context state related to query objects.
- */
-void
-_mesa_free_queryobj_data(struct gl_context *ctx)
-{
-   _mesa_HashDeleteAll(ctx->Query.QueryObjects, delete_queryobj_cb, ctx);
-   _mesa_DeleteHashTable(ctx->Query.QueryObjects);
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.1

+ *

+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+#include "glheader.h"

+#include "context.h"

+#include "enums.h"

+#include "hash.h"

+#include "imports.h"

+#include "queryobj.h"

+#include "mfeatures.h"

+#include "mtypes.h"

+#include "main/dispatch.h"

+

+

+#if FEATURE_queryobj

+

+

+/**

+ * Allocate a new query object.  This is a fallback routine called via

+ * ctx->Driver.NewQueryObject().

+ * \param ctx - rendering context

+ * \param id - the new object's ID

+ * \return pointer to new query_object object or NULL if out of memory.

+ */

+struct gl_query_object *

+_mesa_new_query_object(struct gl_context *ctx, GLuint id)

+{

+   struct gl_query_object *q = MALLOC_STRUCT(gl_query_object);

+   (void) ctx;

+   if (q) {

+      q->Id = id;

+      q->Result = 0;

+      q->Active = GL_FALSE;

+      q->Ready = GL_TRUE;   /* correct, see spec */

+   }

+   return q;

+}

+

+

+/**

+ * Begin a query.  Software driver fallback.

+ * Called via ctx->Driver.BeginQuery().

+ */

+void

+_mesa_begin_query(struct gl_context *ctx, struct gl_query_object *q)

+{

+   /* no-op */

+}

+

+

+/**

+ * End a query.  Software driver fallback.

+ * Called via ctx->Driver.EndQuery().

+ */

+void

+_mesa_end_query(struct gl_context *ctx, struct gl_query_object *q)

+{

+   q->Ready = GL_TRUE;

+}

+

+

+/**

+ * Wait for query to complete.  Software driver fallback.

+ * Called via ctx->Driver.WaitQuery().

+ */

+void

+_mesa_wait_query(struct gl_context *ctx, struct gl_query_object *q)

+{

+   /* For software drivers, _mesa_end_query() should have completed the query.

+    * For real hardware, implement a proper WaitQuery() driver function,

+    * which may require issuing a flush.

+    */

+   assert(q->Ready);

+}

+

+

+/**

+ * Check if a query results are ready.  Software driver fallback.

+ * Called via ctx->Driver.CheckQuery().

+ */

+static void

+_mesa_check_query(struct gl_context *ctx, struct gl_query_object *q)

+{

+   /* No-op for sw rendering.

+    * HW drivers may need to flush at this time.

+    */

+}

+

+

+/**

+ * Delete a query object.  Called via ctx->Driver.DeleteQuery().

+ * Not removed from hash table here.

+ */

+void

+_mesa_delete_query(struct gl_context *ctx, struct gl_query_object *q)

+{

+   free(q);

+}

+

+

+void

+_mesa_init_query_object_functions(struct dd_function_table *driver)

+{

+   driver->NewQueryObject = _mesa_new_query_object;

+   driver->DeleteQuery = _mesa_delete_query;

+   driver->BeginQuery = _mesa_begin_query;

+   driver->EndQuery = _mesa_end_query;

+   driver->WaitQuery = _mesa_wait_query;

+   driver->CheckQuery = _mesa_check_query;

+}

+

+

+/**

+ * Return pointer to the query object binding point for the given target.

+ * \return NULL if invalid target, else the address of binding point

+ */

+static struct gl_query_object **

+get_query_binding_point(struct gl_context *ctx, GLenum target)

+{

+   switch (target) {

+   case GL_SAMPLES_PASSED_ARB:

+      if (ctx->Extensions.ARB_occlusion_query)

+         return &ctx->Query.CurrentOcclusionObject;

+      else

+         return NULL;

+   case GL_ANY_SAMPLES_PASSED:

+      if (ctx->Extensions.ARB_occlusion_query2)

+         return &ctx->Query.CurrentOcclusionObject;

+      else

+         return NULL;

+   case GL_TIME_ELAPSED_EXT:

+      if (ctx->Extensions.EXT_timer_query)

+         return &ctx->Query.CurrentTimerObject;

+      else

+         return NULL;

+#if FEATURE_EXT_transform_feedback

+   case GL_PRIMITIVES_GENERATED:

+      if (ctx->Extensions.EXT_transform_feedback)

+         return &ctx->Query.PrimitivesGenerated;

+      else

+         return NULL;

+   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:

+      if (ctx->Extensions.EXT_transform_feedback)

+         return &ctx->Query.PrimitivesWritten;

+      else

+         return NULL;

+#endif

+   default:

+      return NULL;

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_GenQueriesARB(GLsizei n, GLuint *ids)

+{

+   GLuint first;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGenQueries(%d)\n", n);

+

+   if (n < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGenQueriesARB(n < 0)");

+      return;

+   }

+

+   /* No query objects can be active at this time! */

+   if (ctx->Query.CurrentOcclusionObject ||

+       ctx->Query.CurrentTimerObject) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGenQueriesARB");

+      return;

+   }

+

+   first = _mesa_HashFindFreeKeyBlock(ctx->Query.QueryObjects, n);

+   if (first) {

+      GLsizei i;

+      for (i = 0; i < n; i++) {

+         struct gl_query_object *q

+            = ctx->Driver.NewQueryObject(ctx, first + i);

+         if (!q) {

+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenQueriesARB");

+            return;

+         }

+         ids[i] = first + i;

+         _mesa_HashInsert(ctx->Query.QueryObjects, first + i, q);

+      }

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_DeleteQueriesARB(GLsizei n, const GLuint *ids)

+{

+   GLint i;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glDeleeteQueries(%d)\n", n);

+

+   if (n < 0) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteQueriesARB(n < 0)");

+      return;

+   }

+

+   /* No query objects can be active at this time! */

+   if (ctx->Query.CurrentOcclusionObject ||

+       ctx->Query.CurrentTimerObject) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glDeleteQueriesARB");

+      return;

+   }

+

+   for (i = 0; i < n; i++) {

+      if (ids[i] > 0) {

+         struct gl_query_object *q = _mesa_lookup_query_object(ctx, ids[i]);

+         if (q) {

+            ASSERT(!q->Active); /* should be caught earlier */

+            _mesa_HashRemove(ctx->Query.QueryObjects, ids[i]);

+            ctx->Driver.DeleteQuery(ctx, q);

+         }

+      }

+   }

+}

+

+

+GLboolean GLAPIENTRY

+_mesa_IsQueryARB(GLuint id)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glIsQuery(%u)\n", id);

+

+   if (id && _mesa_lookup_query_object(ctx, id))

+      return GL_TRUE;

+   else

+      return GL_FALSE;

+}

+

+

+static void GLAPIENTRY

+_mesa_BeginQueryARB(GLenum target, GLuint id)

+{

+   struct gl_query_object *q, **bindpt;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glBeginQuery(%s, %u)\n",

+                  _mesa_lookup_enum_by_nr(target), id);

+

+   FLUSH_VERTICES(ctx, _NEW_DEPTH);

+

+   bindpt = get_query_binding_point(ctx, target);

+   if (!bindpt) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glBeginQueryARB(target)");

+      return;

+   }

+

+   if (id == 0) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginQueryARB(id==0)");

+      return;

+   }

+

+   q = _mesa_lookup_query_object(ctx, id);

+   if (!q) {

+      /* create new object */

+      q = ctx->Driver.NewQueryObject(ctx, id);

+      if (!q) {

+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBeginQueryARB");

+         return;

+      }

+      _mesa_HashInsert(ctx->Query.QueryObjects, id, q);

+   }

+   else {

+      /* pre-existing object */

+      if (q->Active) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "glBeginQueryARB(query already active)");

+         return;

+      }

+   }

+

+   q->Target = target;

+   q->Active = GL_TRUE;

+   q->Result = 0;

+   q->Ready = GL_FALSE;

+

+   /* XXX should probably refcount query objects */

+   *bindpt = q;

+

+   ctx->Driver.BeginQuery(ctx, q);

+}

+

+

+static void GLAPIENTRY

+_mesa_EndQueryARB(GLenum target)

+{

+   struct gl_query_object *q, **bindpt;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glEndQuery(%s)\n", _mesa_lookup_enum_by_nr(target));

+

+   FLUSH_VERTICES(ctx, _NEW_DEPTH);

+

+   bindpt = get_query_binding_point(ctx, target);

+   if (!bindpt) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glEndQueryARB(target)");

+      return;

+   }

+

+   /* XXX should probably refcount query objects */

+   q = *bindpt;

+   *bindpt = NULL;

+

+   if (!q || !q->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glEndQueryARB(no matching glBeginQueryARB)");

+      return;

+   }

+

+   q->Active = GL_FALSE;

+   ctx->Driver.EndQuery(ctx, q);

+}

+

+

+void GLAPIENTRY

+_mesa_GetQueryivARB(GLenum target, GLenum pname, GLint *params)

+{

+   struct gl_query_object *q, **bindpt;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGetQueryiv(%s, %s)\n",

+                  _mesa_lookup_enum_by_nr(target),

+                  _mesa_lookup_enum_by_nr(pname));

+

+   bindpt = get_query_binding_point(ctx, target);

+   if (!bindpt) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryARB(target)");

+      return;

+   }

+

+   q = *bindpt;

+

+   switch (pname) {

+      case GL_QUERY_COUNTER_BITS_ARB:

+         *params = 8 * sizeof(q->Result);

+         break;

+      case GL_CURRENT_QUERY_ARB:

+         *params = q ? q->Id : 0;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryivARB(pname)");

+         return;

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_GetQueryObjectivARB(GLuint id, GLenum pname, GLint *params)

+{

+   struct gl_query_object *q = NULL;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGetQueryObjectiv(%u, %s)\n", id,

+                  _mesa_lookup_enum_by_nr(pname));

+

+   if (id)

+      q = _mesa_lookup_query_object(ctx, id);

+

+   if (!q || q->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glGetQueryObjectivARB(id=%d is invalid or active)", id);

+      return;

+   }

+

+   switch (pname) {

+      case GL_QUERY_RESULT_ARB:

+         if (!q->Ready)

+            ctx->Driver.WaitQuery(ctx, q);

+         /* if result is too large for returned type, clamp to max value */

+         if (q->Target == GL_ANY_SAMPLES_PASSED) {

+            if (q->Result)

+               *params = GL_TRUE;

+            else

+               *params = GL_FALSE;

+         } else {

+            if (q->Result > 0x7fffffff) {

+               *params = 0x7fffffff;

+            }

+            else {

+               *params = (GLint)q->Result;

+            }

+         }

+         break;

+      case GL_QUERY_RESULT_AVAILABLE_ARB:

+	 if (!q->Ready)

+	    ctx->Driver.CheckQuery( ctx, q );

+         *params = q->Ready;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectivARB(pname)");

+         return;

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_GetQueryObjectuivARB(GLuint id, GLenum pname, GLuint *params)

+{

+   struct gl_query_object *q = NULL;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGetQueryObjectuiv(%u, %s)\n", id,

+                  _mesa_lookup_enum_by_nr(pname));

+

+   if (id)

+      q = _mesa_lookup_query_object(ctx, id);

+

+   if (!q || q->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glGetQueryObjectuivARB(id=%d is invalid or active)", id);

+      return;

+   }

+

+   switch (pname) {

+      case GL_QUERY_RESULT_ARB:

+         if (!q->Ready)

+            ctx->Driver.WaitQuery(ctx, q);

+         /* if result is too large for returned type, clamp to max value */

+         if (q->Target == GL_ANY_SAMPLES_PASSED) {

+            if (q->Result)

+               *params = GL_TRUE;

+            else

+               *params = GL_FALSE;

+         } else {

+            if (q->Result > 0xffffffff) {

+               *params = 0xffffffff;

+            }

+            else {

+               *params = (GLuint)q->Result;

+            }

+         }

+         break;

+      case GL_QUERY_RESULT_AVAILABLE_ARB:

+	 if (!q->Ready)

+	    ctx->Driver.CheckQuery( ctx, q );

+         *params = q->Ready;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectuivARB(pname)");

+         return;

+   }

+}

+

+

+/**

+ * New with GL_EXT_timer_query

+ */

+static void GLAPIENTRY

+_mesa_GetQueryObjecti64vEXT(GLuint id, GLenum pname, GLint64EXT *params)

+{

+   struct gl_query_object *q = NULL;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGetQueryObjecti64v(%u, %s)\n", id,

+                  _mesa_lookup_enum_by_nr(pname));

+

+   if (id)

+      q = _mesa_lookup_query_object(ctx, id);

+

+   if (!q || q->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glGetQueryObjectui64vARB(id=%d is invalid or active)", id);

+      return;

+   }

+

+   switch (pname) {

+      case GL_QUERY_RESULT_ARB:

+         if (!q->Ready)

+            ctx->Driver.WaitQuery(ctx, q);

+         *params = q->Result;

+         break;

+      case GL_QUERY_RESULT_AVAILABLE_ARB:

+	 if (!q->Ready)

+	    ctx->Driver.CheckQuery( ctx, q );

+         *params = q->Ready;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjecti64vARB(pname)");

+         return;

+   }

+}

+

+

+/**

+ * New with GL_EXT_timer_query

+ */

+static void GLAPIENTRY

+_mesa_GetQueryObjectui64vEXT(GLuint id, GLenum pname, GLuint64EXT *params)

+{

+   struct gl_query_object *q = NULL;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glGetQueryObjectui64v(%u, %s)\n", id,

+                  _mesa_lookup_enum_by_nr(pname));

+

+   if (id)

+      q = _mesa_lookup_query_object(ctx, id);

+

+   if (!q || q->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glGetQueryObjectuui64vARB(id=%d is invalid or active)", id);

+      return;

+   }

+

+   switch (pname) {

+      case GL_QUERY_RESULT_ARB:

+         if (!q->Ready)

+            ctx->Driver.WaitQuery(ctx, q);

+         *params = q->Result;

+         break;

+      case GL_QUERY_RESULT_AVAILABLE_ARB:

+	 if (!q->Ready)

+	    ctx->Driver.CheckQuery( ctx, q );

+         *params = q->Ready;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectui64vARB(pname)");

+         return;

+   }

+}

+

+

+void

+_mesa_init_queryobj_dispatch(struct _glapi_table *disp)

+{

+   SET_GenQueriesARB(disp, _mesa_GenQueriesARB);

+   SET_DeleteQueriesARB(disp, _mesa_DeleteQueriesARB);

+   SET_IsQueryARB(disp, _mesa_IsQueryARB);

+   SET_BeginQueryARB(disp, _mesa_BeginQueryARB);

+   SET_EndQueryARB(disp, _mesa_EndQueryARB);

+   SET_GetQueryivARB(disp, _mesa_GetQueryivARB);

+   SET_GetQueryObjectivARB(disp, _mesa_GetQueryObjectivARB);

+   SET_GetQueryObjectuivARB(disp, _mesa_GetQueryObjectuivARB);

+

+   SET_GetQueryObjecti64vEXT(disp, _mesa_GetQueryObjecti64vEXT);

+   SET_GetQueryObjectui64vEXT(disp, _mesa_GetQueryObjectui64vEXT);

+}

+

+

+#endif /* FEATURE_queryobj */

+

+

+/**

+ * Allocate/init the context state related to query objects.

+ */

+void

+_mesa_init_queryobj(struct gl_context *ctx)

+{

+   ctx->Query.QueryObjects = _mesa_NewHashTable();

+   ctx->Query.CurrentOcclusionObject = NULL;

+}

+

+

+/**

+ * Callback for deleting a query object.  Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_queryobj_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_query_object *q= (struct gl_query_object *) data;

+   struct gl_context *ctx = (struct gl_context *)userData;

+   ctx->Driver.DeleteQuery(ctx, q);

+}

+

+

+/**

+ * Free the context state related to query objects.

+ */

+void

+_mesa_free_queryobj_data(struct gl_context *ctx)

+{

+   _mesa_HashDeleteAll(ctx->Query.QueryObjects, delete_queryobj_cb, ctx);

+   _mesa_DeleteHashTable(ctx->Query.QueryObjects);

+}

diff --git a/mesalib/src/mesa/main/shaderapi.c b/mesalib/src/mesa/main/shaderapi.c
index 11b0f884f..252cda845 100644
--- a/mesalib/src/mesa/main/shaderapi.c
+++ b/mesalib/src/mesa/main/shaderapi.c
@@ -1,1942 +1,1942 @@
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 2004-2008  Brian Paul   All Rights Reserved.
- * Copyright (C) 2009-2010  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file shaderapi.c
- * \author Brian Paul
- *
- * Implementation of GLSL-related API functions.
- * The glUniform* functions are in uniforms.c
- *
- *
- * XXX things to do:
- * 1. Check that the right error code is generated for all _mesa_error() calls.
- * 2. Insert FLUSH_VERTICES calls in various places
- */
-
-
-#include "main/glheader.h"
-#include "main/context.h"
-#include "main/dispatch.h"
-#include "main/enums.h"
-#include "main/hash.h"
-#include "main/mfeatures.h"
-#include "main/mtypes.h"
-#include "main/shaderapi.h"
-#include "main/shaderobj.h"
-#include "program/program.h"
-#include "program/prog_parameter.h"
-#include "program/prog_uniform.h"
-#include "ralloc.h"
-#include <stdbool.h>
-#include "../glsl/glsl_parser_extras.h"
-
-/** Define this to enable shader substitution (see below) */
-#define SHADER_SUBST 0
-
-
-/**
- * Return mask of GLSL_x flags by examining the MESA_GLSL env var.
- */
-static GLbitfield
-get_shader_flags(void)
-{
-   GLbitfield flags = 0x0;
-   const char *env = _mesa_getenv("MESA_GLSL");
-
-   if (env) {
-      if (strstr(env, "dump"))
-         flags |= GLSL_DUMP;
-      if (strstr(env, "log"))
-         flags |= GLSL_LOG;
-      if (strstr(env, "nopvert"))
-         flags |= GLSL_NOP_VERT;
-      if (strstr(env, "nopfrag"))
-         flags |= GLSL_NOP_FRAG;
-      if (strstr(env, "nopt"))
-         flags |= GLSL_NO_OPT;
-      else if (strstr(env, "opt"))
-         flags |= GLSL_OPT;
-      if (strstr(env, "uniform"))
-         flags |= GLSL_UNIFORMS;
-      if (strstr(env, "useprog"))
-         flags |= GLSL_USE_PROG;
-   }
-
-   return flags;
-}
-
-
-/**
- * Initialize context's shader state.
- */
-void
-_mesa_init_shader_state(struct gl_context *ctx)
-{
-   /* Device drivers may override these to control what kind of instructions
-    * are generated by the GLSL compiler.
-    */
-   struct gl_shader_compiler_options options;
-   gl_shader_type sh;
-
-   memset(&options, 0, sizeof(options));
-   options.MaxUnrollIterations = 32;
-
-   /* Default pragma settings */
-   options.DefaultPragmas.Optimize = GL_TRUE;
-
-   for (sh = 0; sh < MESA_SHADER_TYPES; ++sh)
-      memcpy(&ctx->ShaderCompilerOptions[sh], &options, sizeof(options));
-
-   ctx->Shader.Flags = get_shader_flags();
-}
-
-
-/**
- * Free the per-context shader-related state.
- */
-void
-_mesa_free_shader_state(struct gl_context *ctx)
-{
-   _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentVertexProgram, NULL);
-   _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentGeometryProgram,
-				  NULL);
-   _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentFragmentProgram,
-				  NULL);
-   _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, NULL);
-}
-
-
-/**
- * Return the size of the given GLSL datatype, in floats (components).
- */
-GLint
-_mesa_sizeof_glsl_type(GLenum type)
-{
-   switch (type) {
-   case GL_FLOAT:
-   case GL_INT:
-   case GL_BOOL:
-   case GL_SAMPLER_1D:
-   case GL_SAMPLER_2D:
-   case GL_SAMPLER_3D:
-   case GL_SAMPLER_CUBE:
-   case GL_SAMPLER_1D_SHADOW:
-   case GL_SAMPLER_2D_SHADOW:
-   case GL_SAMPLER_2D_RECT_ARB:
-   case GL_SAMPLER_2D_RECT_SHADOW_ARB:
-   case GL_SAMPLER_1D_ARRAY_EXT:
-   case GL_SAMPLER_2D_ARRAY_EXT:
-   case GL_SAMPLER_1D_ARRAY_SHADOW_EXT:
-   case GL_SAMPLER_2D_ARRAY_SHADOW_EXT:
-   case GL_SAMPLER_CUBE_SHADOW_EXT:
-      return 1;
-   case GL_FLOAT_VEC2:
-   case GL_INT_VEC2:
-   case GL_UNSIGNED_INT_VEC2:
-   case GL_BOOL_VEC2:
-      return 2;
-   case GL_FLOAT_VEC3:
-   case GL_INT_VEC3:
-   case GL_UNSIGNED_INT_VEC3:
-   case GL_BOOL_VEC3:
-      return 3;
-   case GL_FLOAT_VEC4:
-   case GL_INT_VEC4:
-   case GL_UNSIGNED_INT_VEC4:
-   case GL_BOOL_VEC4:
-      return 4;
-   case GL_FLOAT_MAT2:
-   case GL_FLOAT_MAT2x3:
-   case GL_FLOAT_MAT2x4:
-      return 8; /* two float[4] vectors */
-   case GL_FLOAT_MAT3:
-   case GL_FLOAT_MAT3x2:
-   case GL_FLOAT_MAT3x4:
-      return 12; /* three float[4] vectors */
-   case GL_FLOAT_MAT4:
-   case GL_FLOAT_MAT4x2:
-   case GL_FLOAT_MAT4x3:
-      return 16;  /* four float[4] vectors */
-   default:
-      _mesa_problem(NULL, "Invalid type in _mesa_sizeof_glsl_type()");
-      return 1;
-   }
-}
-
-
-/**
- * Copy string from <src> to <dst>, up to maxLength characters, returning
- * length of <dst> in <length>.
- * \param src  the strings source
- * \param maxLength  max chars to copy
- * \param length  returns number of chars copied
- * \param dst  the string destination
- */
-void
-_mesa_copy_string(GLchar *dst, GLsizei maxLength,
-                  GLsizei *length, const GLchar *src)
-{
-   GLsizei len;
-   for (len = 0; len < maxLength - 1 && src && src[len]; len++)
-      dst[len] = src[len];
-   if (maxLength > 0)
-      dst[len] = 0;
-   if (length)
-      *length = len;
-}
-
-
-
-/**
- * Confirm that the a shader type is valid and supported by the implementation
- *
- * \param ctx   Current GL context
- * \param type  Shader target
- *
- */
-static bool
-validate_shader_target(const struct gl_context *ctx, GLenum type)
-{
-   switch (type) {
-#if FEATURE_ARB_fragment_shader
-   case GL_FRAGMENT_SHADER:
-      return ctx->Extensions.ARB_fragment_shader;
-#endif
-#if FEATURE_ARB_vertex_shader
-   case GL_VERTEX_SHADER:
-      return ctx->Extensions.ARB_vertex_shader;
-#endif
-#if FEATURE_ARB_geometry_shader4
-   case GL_GEOMETRY_SHADER_ARB:
-      return ctx->Extensions.ARB_geometry_shader4;
-#endif
-   default:
-      return false;
-   }
-}
-
-
-/**
- * Find the length of the longest transform feedback varying name
- * which was specified with glTransformFeedbackVaryings().
- */
-static GLint
-longest_feedback_varying_name(const struct gl_shader_program *shProg)
-{
-   GLuint i;
-   GLint max = 0;
-   for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) {
-      GLint len = strlen(shProg->TransformFeedback.VaryingNames[i]);
-      if (len > max)
-         max = len;
-   }
-   return max;
-}
-
-
-
-static GLboolean
-is_program(struct gl_context *ctx, GLuint name)
-{
-   struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, name);
-   return shProg ? GL_TRUE : GL_FALSE;
-}
-
-
-static GLboolean
-is_shader(struct gl_context *ctx, GLuint name)
-{
-   struct gl_shader *shader = _mesa_lookup_shader(ctx, name);
-   return shader ? GL_TRUE : GL_FALSE;
-}
-
-
-/**
- * Attach shader to a shader program.
- */
-static void
-attach_shader(struct gl_context *ctx, GLuint program, GLuint shader)
-{
-   struct gl_shader_program *shProg;
-   struct gl_shader *sh;
-   GLuint i, n;
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program, "glAttachShader");
-   if (!shProg)
-      return;
-
-   sh = _mesa_lookup_shader_err(ctx, shader, "glAttachShader");
-   if (!sh) {
-      return;
-   }
-
-   n = shProg->NumShaders;
-   for (i = 0; i < n; i++) {
-      if (shProg->Shaders[i] == sh) {
-         /* The shader is already attched to this program.  The
-          * GL_ARB_shader_objects spec says:
-          *
-          *     "The error INVALID_OPERATION is generated by AttachObjectARB
-          *     if <obj> is already attached to <containerObj>."
-          */
-         _mesa_error(ctx, GL_INVALID_OPERATION, "glAttachShader");
-         return;
-      }
-   }
-
-   /* grow list */
-   shProg->Shaders = (struct gl_shader **)
-      _mesa_realloc(shProg->Shaders,
-                    n * sizeof(struct gl_shader *),
-                    (n + 1) * sizeof(struct gl_shader *));
-   if (!shProg->Shaders) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glAttachShader");
-      return;
-   }
-
-   /* append */
-   shProg->Shaders[n] = NULL; /* since realloc() didn't zero the new space */
-   _mesa_reference_shader(ctx, &shProg->Shaders[n], sh);
-   shProg->NumShaders++;
-}
-
-
-static GLint
-get_attrib_location(struct gl_context *ctx, GLuint program, const GLchar *name)
-{
-   struct gl_shader_program *shProg
-      = _mesa_lookup_shader_program_err(ctx, program, "glGetAttribLocation");
-
-   if (!shProg) {
-      return -1;
-   }
-
-   if (!shProg->LinkStatus) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetAttribLocation(program not linked)");
-      return -1;
-   }
-
-   if (!name)
-      return -1;
-
-   if (shProg->VertexProgram) {
-      const struct gl_program_parameter_list *attribs =
-         shProg->VertexProgram->Base.Attributes;
-      if (attribs) {
-         GLint i = _mesa_lookup_parameter_index(attribs, -1, name);
-         if (i >= 0) {
-            return attribs->Parameters[i].StateIndexes[0];
-         }
-      }
-   }
-   return -1;
-}
-
-
-static void
-bind_attrib_location(struct gl_context *ctx, GLuint program, GLuint index,
-                     const GLchar *name)
-{
-   struct gl_shader_program *shProg;
-   const GLint size = -1; /* unknown size */
-   GLint i, oldIndex;
-   GLenum datatype = GL_FLOAT_VEC4;
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program,
-                                            "glBindAttribLocation");
-   if (!shProg) {
-      return;
-   }
-
-   if (!name)
-      return;
-
-   if (strncmp(name, "gl_", 3) == 0) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glBindAttribLocation(illegal name)");
-      return;
-   }
-
-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(index)");
-      return;
-   }
-
-   if (shProg->LinkStatus) {
-      /* get current index/location for the attribute */
-      oldIndex = get_attrib_location(ctx, program, name);
-   }
-   else {
-      oldIndex = -1;
-   }
-
-   /* this will replace the current value if it's already in the list */
-   i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index);
-   if (i < 0) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindAttribLocation");
-      return;
-   }
-
-   /*
-    * Note that this attribute binding won't go into effect until
-    * glLinkProgram is called again.
-    */
-}
-
-
-static void
-bind_frag_data_location(struct gl_context *ctx, GLuint program,
-                        GLuint colorNumber, const GLchar *name)
-{
-   _mesa_problem(ctx, "bind_frag_data_location() not implemented yet");
-}
-
-
-static GLuint
-create_shader(struct gl_context *ctx, GLenum type)
-{
-   struct gl_shader *sh;
-   GLuint name;
-
-   if (!validate_shader_target(ctx, type)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "CreateShader(type)");
-      return 0;
-   }
-
-   name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1);
-   sh = ctx->Driver.NewShader(ctx, name, type);
-   _mesa_HashInsert(ctx->Shared->ShaderObjects, name, sh);
-
-   return name;
-}
-
-
-static GLuint 
-create_shader_program(struct gl_context *ctx)
-{
-   GLuint name;
-   struct gl_shader_program *shProg;
-
-   name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1);
-
-   shProg = ctx->Driver.NewShaderProgram(ctx, name);
-
-   _mesa_HashInsert(ctx->Shared->ShaderObjects, name, shProg);
-
-   assert(shProg->RefCount == 1);
-
-   return name;
-}
-
-
-/**
- * Named w/ "2" to indicate OpenGL 2.x vs GL_ARB_fragment_programs's
- * DeleteProgramARB.
- */
-static void
-delete_shader_program(struct gl_context *ctx, GLuint name)
-{
-   /*
-    * NOTE: deleting shaders/programs works a bit differently than
-    * texture objects (and buffer objects, etc).  Shader/program
-    * handles/IDs exist in the hash table until the object is really
-    * deleted (refcount==0).  With texture objects, the handle/ID is
-    * removed from the hash table in glDeleteTextures() while the tex
-    * object itself might linger until its refcount goes to zero.
-    */
-   struct gl_shader_program *shProg;
-
-   shProg = _mesa_lookup_shader_program_err(ctx, name, "glDeleteProgram");
-   if (!shProg)
-      return;
-
-   shProg->DeletePending = GL_TRUE;
-
-   /* effectively, decr shProg's refcount */
-   _mesa_reference_shader_program(ctx, &shProg, NULL);
-}
-
-
-static void
-delete_shader(struct gl_context *ctx, GLuint shader)
-{
-   struct gl_shader *sh;
-
-   sh = _mesa_lookup_shader_err(ctx, shader, "glDeleteShader");
-   if (!sh)
-      return;
-
-   sh->DeletePending = GL_TRUE;
-
-   /* effectively, decr sh's refcount */
-   _mesa_reference_shader(ctx, &sh, NULL);
-}
-
-
-static void
-detach_shader(struct gl_context *ctx, GLuint program, GLuint shader)
-{
-   struct gl_shader_program *shProg;
-   GLuint n;
-   GLuint i, j;
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program, "glDetachShader");
-   if (!shProg)
-      return;
-
-   n = shProg->NumShaders;
-
-   for (i = 0; i < n; i++) {
-      if (shProg->Shaders[i]->Name == shader) {
-         /* found it */
-         struct gl_shader **newList;
-
-         /* release */
-         _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL);
-
-         /* alloc new, smaller array */
-         newList = (struct gl_shader **)
-            malloc((n - 1) * sizeof(struct gl_shader *));
-         if (!newList) {
-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDetachShader");
-            return;
-         }
-         for (j = 0; j < i; j++) {
-            newList[j] = shProg->Shaders[j];
-         }
-         while (++i < n)
-            newList[j++] = shProg->Shaders[i];
-         free(shProg->Shaders);
-
-         shProg->Shaders = newList;
-         shProg->NumShaders = n - 1;
-
-#ifdef DEBUG
-         /* sanity check */
-         {
-            for (j = 0; j < shProg->NumShaders; j++) {
-               assert(shProg->Shaders[j]->Type == GL_VERTEX_SHADER ||
-                      shProg->Shaders[j]->Type == GL_FRAGMENT_SHADER);
-               assert(shProg->Shaders[j]->RefCount > 0);
-            }
-         }
-#endif
-
-         return;
-      }
-   }
-
-   /* not found */
-   {
-      GLenum err;
-      if (is_shader(ctx, shader))
-         err = GL_INVALID_OPERATION;
-      else if (is_program(ctx, shader))
-         err = GL_INVALID_OPERATION;
-      else
-         err = GL_INVALID_VALUE;
-      _mesa_error(ctx, err, "glDetachProgram(shader)");
-      return;
-   }
-}
-
-
-static void
-get_active_attrib(struct gl_context *ctx, GLuint program, GLuint index,
-                  GLsizei maxLength, GLsizei *length, GLint *size,
-                  GLenum *type, GLchar *nameOut)
-{
-   const struct gl_program_parameter_list *attribs = NULL;
-   struct gl_shader_program *shProg;
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib");
-   if (!shProg)
-      return;
-
-   if (shProg->VertexProgram)
-      attribs = shProg->VertexProgram->Base.Attributes;
-
-   if (!attribs || index >= attribs->NumParameters) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)");
-      return;
-   }
-
-   _mesa_copy_string(nameOut, maxLength, length,
-                     attribs->Parameters[index].Name);
-
-   if (size)
-      *size = attribs->Parameters[index].Size
-         / _mesa_sizeof_glsl_type(attribs->Parameters[index].DataType);
-
-   if (type)
-      *type = attribs->Parameters[index].DataType;
-}
-
-
-/**
- * Return list of shaders attached to shader program.
- */
-static void
-get_attached_shaders(struct gl_context *ctx, GLuint program, GLsizei maxCount,
-                     GLsizei *count, GLuint *obj)
-{
-   struct gl_shader_program *shProg =
-      _mesa_lookup_shader_program_err(ctx, program, "glGetAttachedShaders");
-   if (shProg) {
-      GLuint i;
-      for (i = 0; i < (GLuint) maxCount && i < shProg->NumShaders; i++) {
-         obj[i] = shProg->Shaders[i]->Name;
-      }
-      if (count)
-         *count = i;
-   }
-}
-
-
-static GLint
-get_frag_data_location(struct gl_context *ctx, GLuint program,
-                       const GLchar *name)
-{
-   _mesa_problem(ctx, "get_frag_data_location() not implemented yet");
-   return -1;
-}
-
-
-
-/**
- * glGetHandleARB() - return ID/name of currently bound shader program.
- */
-static GLuint
-get_handle(struct gl_context *ctx, GLenum pname)
-{
-   if (pname == GL_PROGRAM_OBJECT_ARB) {
-      if (ctx->Shader.ActiveProgram)
-         return ctx->Shader.ActiveProgram->Name;
-      else
-         return 0;
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetHandleARB");
-      return 0;
-   }
-}
-
-
-/**
- * glGetProgramiv() - get shader program state.
- * Note that this is for GLSL shader programs, not ARB vertex/fragment
- * programs (see glGetProgramivARB).
- */
-static void
-get_programiv(struct gl_context *ctx, GLuint program, GLenum pname, GLint *params)
-{
-   const struct gl_program_parameter_list *attribs;
-   struct gl_shader_program *shProg
-      = _mesa_lookup_shader_program(ctx, program);
-
-   if (!shProg) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramiv(program)");
-      return;
-   }
-
-   if (shProg->VertexProgram)
-      attribs = shProg->VertexProgram->Base.Attributes;
-   else
-      attribs = NULL;
-
-   switch (pname) {
-   case GL_DELETE_STATUS:
-      *params = shProg->DeletePending;
-      break; 
-   case GL_LINK_STATUS:
-      *params = shProg->LinkStatus;
-      break;
-   case GL_VALIDATE_STATUS:
-      *params = shProg->Validated;
-      break;
-   case GL_INFO_LOG_LENGTH:
-      *params = shProg->InfoLog ? strlen(shProg->InfoLog) + 1 : 0;
-      break;
-   case GL_ATTACHED_SHADERS:
-      *params = shProg->NumShaders;
-      break;
-   case GL_ACTIVE_ATTRIBUTES:
-      *params = attribs ? attribs->NumParameters : 0;
-      break;
-   case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:
-      *params = _mesa_longest_parameter_name(attribs, PROGRAM_INPUT) + 1;
-      break;
-   case GL_ACTIVE_UNIFORMS:
-      *params = shProg->Uniforms ? shProg->Uniforms->NumUniforms : 0;
-      break;
-   case GL_ACTIVE_UNIFORM_MAX_LENGTH:
-      *params = _mesa_longest_uniform_name(shProg->Uniforms);
-      if (*params > 0)
-         (*params)++;  /* add one for terminating zero */
-      break;
-   case GL_PROGRAM_BINARY_LENGTH_OES:
-      *params = 0;
-      break;
-#if FEATURE_EXT_transform_feedback
-   case GL_TRANSFORM_FEEDBACK_VARYINGS:
-      *params = shProg->TransformFeedback.NumVarying;
-      break;
-   case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH:
-      *params = longest_feedback_varying_name(shProg) + 1;
-      break;
-   case GL_TRANSFORM_FEEDBACK_BUFFER_MODE:
-      *params = shProg->TransformFeedback.BufferMode;
-      break;
-#endif
-#if FEATURE_ARB_geometry_shader4
-   case GL_GEOMETRY_VERTICES_OUT_ARB:
-      *params = shProg->Geom.VerticesOut;
-      break;
-   case GL_GEOMETRY_INPUT_TYPE_ARB:
-      *params = shProg->Geom.InputType;
-      break;
-   case GL_GEOMETRY_OUTPUT_TYPE_ARB:
-      *params = shProg->Geom.OutputType;
-      break;
-#endif
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramiv(pname)");
-      return;
-   }
-}
-
-
-/**
- * glGetShaderiv() - get GLSL shader state
- */
-static void
-get_shaderiv(struct gl_context *ctx, GLuint name, GLenum pname, GLint *params)
-{
-   struct gl_shader *shader =
-      _mesa_lookup_shader_err(ctx, name, "glGetShaderiv");
-
-   if (!shader) {
-      return;
-   }
-
-   switch (pname) {
-   case GL_SHADER_TYPE:
-      *params = shader->Type;
-      break;
-   case GL_DELETE_STATUS:
-      *params = shader->DeletePending;
-      break;
-   case GL_COMPILE_STATUS:
-      *params = shader->CompileStatus;
-      break;
-   case GL_INFO_LOG_LENGTH:
-      *params = shader->InfoLog ? strlen(shader->InfoLog) + 1 : 0;
-      break;
-   case GL_SHADER_SOURCE_LENGTH:
-      *params = shader->Source ? strlen((char *) shader->Source) + 1 : 0;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetShaderiv(pname)");
-      return;
-   }
-}
-
-
-static void
-get_program_info_log(struct gl_context *ctx, GLuint program, GLsizei bufSize,
-                     GLsizei *length, GLchar *infoLog)
-{
-   struct gl_shader_program *shProg
-      = _mesa_lookup_shader_program(ctx, program);
-   if (!shProg) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(program)");
-      return;
-   }
-   _mesa_copy_string(infoLog, bufSize, length, shProg->InfoLog);
-}
-
-
-static void
-get_shader_info_log(struct gl_context *ctx, GLuint shader, GLsizei bufSize,
-                    GLsizei *length, GLchar *infoLog)
-{
-   struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
-   if (!sh) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(shader)");
-      return;
-   }
-   _mesa_copy_string(infoLog, bufSize, length, sh->InfoLog);
-}
-
-
-/**
- * Return shader source code.
- */
-static void
-get_shader_source(struct gl_context *ctx, GLuint shader, GLsizei maxLength,
-                  GLsizei *length, GLchar *sourceOut)
-{
-   struct gl_shader *sh;
-   sh = _mesa_lookup_shader_err(ctx, shader, "glGetShaderSource");
-   if (!sh) {
-      return;
-   }
-   _mesa_copy_string(sourceOut, maxLength, length, sh->Source);
-}
-
-
-/**
- * Set/replace shader source code.
- */
-static void
-shader_source(struct gl_context *ctx, GLuint shader, const GLchar *source)
-{
-   struct gl_shader *sh;
-
-   sh = _mesa_lookup_shader_err(ctx, shader, "glShaderSource");
-   if (!sh)
-      return;
-
-   /* free old shader source string and install new one */
-   if (sh->Source) {
-      free((void *) sh->Source);
-   }
-   sh->Source = source;
-   sh->CompileStatus = GL_FALSE;
-#ifdef DEBUG
-   sh->SourceChecksum = _mesa_str_checksum(sh->Source);
-#endif
-}
-
-
-/**
- * Compile a shader.
- */
-static void
-compile_shader(struct gl_context *ctx, GLuint shaderObj)
-{
-   struct gl_shader *sh;
-   struct gl_shader_compiler_options *options;
-
-   sh = _mesa_lookup_shader_err(ctx, shaderObj, "glCompileShader");
-   if (!sh)
-      return;
-
-   options = &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(sh->Type)];
-
-   /* set default pragma state for shader */
-   sh->Pragmas = options->DefaultPragmas;
-
-   /* this call will set the sh->CompileStatus field to indicate if
-    * compilation was successful.
-    */
-   _mesa_glsl_compile_shader(ctx, sh);
-}
-
-
-/**
- * Link a program's shaders.
- */
-static void
-link_program(struct gl_context *ctx, GLuint program)
-{
-   struct gl_shader_program *shProg;
-   struct gl_transform_feedback_object *obj =
-      ctx->TransformFeedback.CurrentObject;
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program, "glLinkProgram");
-   if (!shProg)
-      return;
-
-   if (obj->Active
-       && (shProg == ctx->Shader.CurrentVertexProgram
-	   || shProg == ctx->Shader.CurrentGeometryProgram
-	   || shProg == ctx->Shader.CurrentFragmentProgram)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glLinkProgram(transform feedback active");
-      return;
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
-
-   _mesa_glsl_link_shader(ctx, shProg);
-
-   /* debug code */
-   if (0) {
-      GLuint i;
-
-      printf("Link %u shaders in program %u: %s\n",
-                   shProg->NumShaders, shProg->Name,
-                   shProg->LinkStatus ? "Success" : "Failed");
-
-      for (i = 0; i < shProg->NumShaders; i++) {
-         printf(" shader %u, type 0x%x\n",
-                      shProg->Shaders[i]->Name,
-                      shProg->Shaders[i]->Type);
-      }
-   }
-}
-
-
-/**
- * Print basic shader info (for debug).
- */
-static void
-print_shader_info(const struct gl_shader_program *shProg)
-{
-   GLuint i;
-
-   printf("Mesa: glUseProgram(%u)\n", shProg->Name);
-   for (i = 0; i < shProg->NumShaders; i++) {
-      const char *s;
-      switch (shProg->Shaders[i]->Type) {
-      case GL_VERTEX_SHADER:
-         s = "vertex";
-         break;
-      case GL_FRAGMENT_SHADER:
-         s = "fragment";
-         break;
-      case GL_GEOMETRY_SHADER:
-         s = "geometry";
-         break;
-      default:
-         s = "";
-      }
-      printf("  %s shader %u, checksum %u\n", s, 
-	     shProg->Shaders[i]->Name,
-	     shProg->Shaders[i]->SourceChecksum);
-   }
-   if (shProg->VertexProgram)
-      printf("  vert prog %u\n", shProg->VertexProgram->Base.Id);
-   if (shProg->FragmentProgram)
-      printf("  frag prog %u\n", shProg->FragmentProgram->Base.Id);
-}
-
-
-/**
- * Use the named shader program for subsequent glUniform calls
- */
-void
-_mesa_active_program(struct gl_context *ctx, struct gl_shader_program *shProg,
-		     const char *caller)
-{
-   if ((shProg != NULL) && !shProg->LinkStatus) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-		  "%s(program %u not linked)", caller, shProg->Name);
-      return;
-   }
-
-   if (ctx->Shader.ActiveProgram != shProg) {
-      _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, shProg);
-   }
-}
-
-/**
- */
-static bool
-use_shader_program(struct gl_context *ctx, GLenum type,
-		   struct gl_shader_program *shProg)
-{
-   struct gl_shader_program **target;
-
-   switch (type) {
-#if FEATURE_ARB_vertex_shader
-   case GL_VERTEX_SHADER:
-      target = &ctx->Shader.CurrentVertexProgram;
-      if ((shProg == NULL)
-	  || (shProg->_LinkedShaders[MESA_SHADER_VERTEX] == NULL)) {
-	 shProg = NULL;
-      }
-      break;
-#endif
-#if FEATURE_ARB_geometry_shader4
-   case GL_GEOMETRY_SHADER_ARB:
-      target = &ctx->Shader.CurrentGeometryProgram;
-      if ((shProg == NULL)
-	  || (shProg->_LinkedShaders[MESA_SHADER_GEOMETRY] == NULL)) {
-	 shProg = NULL;
-      }
-      break;
-#endif
-#if FEATURE_ARB_fragment_shader
-   case GL_FRAGMENT_SHADER:
-      target = &ctx->Shader.CurrentFragmentProgram;
-      if ((shProg == NULL)
-	  || (shProg->_LinkedShaders[MESA_SHADER_FRAGMENT] == NULL)) {
-	 shProg = NULL;
-      }
-      break;
-#endif
-   default:
-      return false;
-   }
-
-   if (*target != shProg) {
-      FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
-      _mesa_reference_shader_program(ctx, target, shProg);
-      return true;
-   }
-
-   return false;
-}
-
-/**
- * Use the named shader program for subsequent rendering.
- */
-void
-_mesa_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)
-{
-   use_shader_program(ctx, GL_VERTEX_SHADER, shProg);
-   use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, shProg);
-   use_shader_program(ctx, GL_FRAGMENT_SHADER, shProg);
-   _mesa_active_program(ctx, shProg, "glUseProgram");
-
-   if (ctx->Driver.UseProgram)
-      ctx->Driver.UseProgram(ctx, shProg);
-}
-
-
-/**
- * Validate a program's samplers.
- * Specifically, check that there aren't two samplers of different types
- * pointing to the same texture unit.
- * \return GL_TRUE if valid, GL_FALSE if invalid
- */
-static GLboolean
-validate_samplers(const struct gl_program *prog, char *errMsg)
-{
-   static const char *targetName[] = {
-      "TEXTURE_2D_ARRAY",
-      "TEXTURE_1D_ARRAY",
-      "TEXTURE_CUBE",
-      "TEXTURE_3D",
-      "TEXTURE_RECT",
-      "TEXTURE_2D",
-      "TEXTURE_1D",
-   };
-   GLint targetUsed[MAX_TEXTURE_IMAGE_UNITS];
-   GLbitfield samplersUsed = prog->SamplersUsed;
-   GLuint i;
-
-   assert(Elements(targetName) == NUM_TEXTURE_TARGETS);
-
-   if (samplersUsed == 0x0)
-      return GL_TRUE;
-
-   for (i = 0; i < Elements(targetUsed); i++)
-      targetUsed[i] = -1;
-
-   /* walk over bits which are set in 'samplers' */
-   while (samplersUsed) {
-      GLuint unit;
-      gl_texture_index target;
-      GLint sampler = _mesa_ffs(samplersUsed) - 1;
-      assert(sampler >= 0);
-      assert(sampler < MAX_TEXTURE_IMAGE_UNITS);
-      unit = prog->SamplerUnits[sampler];
-      target = prog->SamplerTargets[sampler];
-      if (targetUsed[unit] != -1 && targetUsed[unit] != (int) target) {
-         _mesa_snprintf(errMsg, 100,
-		  "Texture unit %d is accessed both as %s and %s",
-		  unit, targetName[targetUsed[unit]], targetName[target]);
-         return GL_FALSE;
-      }
-      targetUsed[unit] = target;
-      samplersUsed ^= (1 << sampler);
-   }
-
-   return GL_TRUE;
-}
-
-
-/**
- * Do validation of the given shader program.
- * \param errMsg  returns error message if validation fails.
- * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg)
- */
-static GLboolean
-validate_shader_program(const struct gl_shader_program *shProg,
-                        char *errMsg)
-{
-   const struct gl_vertex_program *vp = shProg->VertexProgram;
-   const struct gl_fragment_program *fp = shProg->FragmentProgram;
-
-   if (!shProg->LinkStatus) {
-      return GL_FALSE;
-   }
-
-   /* From the GL spec, a program is invalid if any of these are true:
-
-     any two active samplers in the current program object are of
-     different types, but refer to the same texture image unit,
-
-     any active sampler in the current program object refers to a texture
-     image unit where fixed-function fragment processing accesses a
-     texture target that does not match the sampler type, or 
-
-     the sum of the number of active samplers in the program and the
-     number of texture image units enabled for fixed-function fragment
-     processing exceeds the combined limit on the total number of texture
-     image units allowed.
-   */
-
-
-   /*
-    * Check: any two active samplers in the current program object are of
-    * different types, but refer to the same texture image unit,
-    */
-   if (vp && !validate_samplers(&vp->Base, errMsg)) {
-      return GL_FALSE;
-   }
-   if (fp && !validate_samplers(&fp->Base, errMsg)) {
-      return GL_FALSE;
-   }
-
-   return GL_TRUE;
-}
-
-
-/**
- * Called via glValidateProgram()
- */
-static void
-validate_program(struct gl_context *ctx, GLuint program)
-{
-   struct gl_shader_program *shProg;
-   char errMsg[100];
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program, "glValidateProgram");
-   if (!shProg) {
-      return;
-   }
-
-   shProg->Validated = validate_shader_program(shProg, errMsg);
-   if (!shProg->Validated) {
-      /* update info log */
-      if (shProg->InfoLog) {
-         ralloc_free(shProg->InfoLog);
-      }
-      shProg->InfoLog = ralloc_strdup(shProg, errMsg);
-   }
-}
-
-
-
-void GLAPIENTRY
-_mesa_AttachObjectARB(GLhandleARB program, GLhandleARB shader)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   attach_shader(ctx, program, shader);
-}
-
-
-void GLAPIENTRY
-_mesa_AttachShader(GLuint program, GLuint shader)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   attach_shader(ctx, program, shader);
-}
-
-
-void GLAPIENTRY
-_mesa_BindAttribLocationARB(GLhandleARB program, GLuint index,
-                            const GLcharARB *name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   bind_attrib_location(ctx, program, index, name);
-}
-
-
-/* GL_EXT_gpu_shader4, GL3 */
-void GLAPIENTRY
-_mesa_BindFragDataLocation(GLuint program, GLuint colorNumber,
-                           const GLchar *name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   bind_frag_data_location(ctx, program, colorNumber, name);
-}
-
-
-void GLAPIENTRY
-_mesa_CompileShaderARB(GLhandleARB shaderObj)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glCompileShader %u\n", shaderObj);
-   compile_shader(ctx, shaderObj);
-}
-
-
-GLuint GLAPIENTRY
-_mesa_CreateShader(GLenum type)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glCreateShader %s\n", _mesa_lookup_enum_by_nr(type));
-   return create_shader(ctx, type);
-}
-
-
-GLhandleARB GLAPIENTRY
-_mesa_CreateShaderObjectARB(GLenum type)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return create_shader(ctx, type);
-}
-
-
-GLuint GLAPIENTRY
-_mesa_CreateProgram(void)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glCreateProgram\n");
-   return create_shader_program(ctx);
-}
-
-
-GLhandleARB GLAPIENTRY
-_mesa_CreateProgramObjectARB(void)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return create_shader_program(ctx);
-}
-
-
-void GLAPIENTRY
-_mesa_DeleteObjectARB(GLhandleARB obj)
-{
-   if (MESA_VERBOSE & VERBOSE_API) {
-      GET_CURRENT_CONTEXT(ctx);
-      _mesa_debug(ctx, "glDeleteObjectARB(%u)\n", obj);
-   }
-
-   if (obj) {
-      GET_CURRENT_CONTEXT(ctx);
-      if (is_program(ctx, obj)) {
-         delete_shader_program(ctx, obj);
-      }
-      else if (is_shader(ctx, obj)) {
-         delete_shader(ctx, obj);
-      }
-      else {
-         /* error? */
-      }
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_DeleteProgram(GLuint name)
-{
-   if (name) {
-      GET_CURRENT_CONTEXT(ctx);
-      delete_shader_program(ctx, name);
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_DeleteShader(GLuint name)
-{
-   if (name) {
-      GET_CURRENT_CONTEXT(ctx);
-      delete_shader(ctx, name);
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_DetachObjectARB(GLhandleARB program, GLhandleARB shader)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   detach_shader(ctx, program, shader);
-}
-
-
-void GLAPIENTRY
-_mesa_DetachShader(GLuint program, GLuint shader)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   detach_shader(ctx, program, shader);
-}
-
-
-void GLAPIENTRY
-_mesa_GetActiveAttribARB(GLhandleARB program, GLuint index,
-                         GLsizei maxLength, GLsizei * length, GLint * size,
-                         GLenum * type, GLcharARB * name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_active_attrib(ctx, program, index, maxLength, length, size, type, name);
-}
-
-
-void GLAPIENTRY
-_mesa_GetAttachedObjectsARB(GLhandleARB container, GLsizei maxCount,
-                            GLsizei * count, GLhandleARB * obj)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_attached_shaders(ctx, container, maxCount, count, obj);
-}
-
-
-void GLAPIENTRY
-_mesa_GetAttachedShaders(GLuint program, GLsizei maxCount,
-                         GLsizei *count, GLuint *obj)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_attached_shaders(ctx, program, maxCount, count, obj);
-}
-
-
-GLint GLAPIENTRY
-_mesa_GetAttribLocationARB(GLhandleARB program, const GLcharARB * name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return get_attrib_location(ctx, program, name);
-}
-
-
-/* GL_EXT_gpu_shader4, GL3 */
-GLint GLAPIENTRY
-_mesa_GetFragDataLocation(GLuint program, const GLchar *name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return get_frag_data_location(ctx, program, name);
-}
-
-
-
-void GLAPIENTRY
-_mesa_GetInfoLogARB(GLhandleARB object, GLsizei maxLength, GLsizei * length,
-                    GLcharARB * infoLog)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   if (is_program(ctx, object)) {
-      get_program_info_log(ctx, object, maxLength, length, infoLog);
-   }
-   else if (is_shader(ctx, object)) {
-      get_shader_info_log(ctx, object, maxLength, length, infoLog);
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetInfoLogARB");
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_GetObjectParameterivARB(GLhandleARB object, GLenum pname, GLint *params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   /* Implement in terms of GetProgramiv, GetShaderiv */
-   if (is_program(ctx, object)) {
-      if (pname == GL_OBJECT_TYPE_ARB) {
-	 *params = GL_PROGRAM_OBJECT_ARB;
-      }
-      else {
-	 get_programiv(ctx, object, pname, params);
-      }
-   }
-   else if (is_shader(ctx, object)) {
-      if (pname == GL_OBJECT_TYPE_ARB) {
-	 *params = GL_SHADER_OBJECT_ARB;
-      }
-      else {
-	 get_shaderiv(ctx, object, pname, params);
-      }
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetObjectParameterivARB");
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_GetObjectParameterfvARB(GLhandleARB object, GLenum pname,
-                              GLfloat *params)
-{
-   GLint iparams[1];  /* XXX is one element enough? */
-   _mesa_GetObjectParameterivARB(object, pname, iparams);
-   params[0] = (GLfloat) iparams[0];
-}
-
-
-void GLAPIENTRY
-_mesa_GetProgramiv(GLuint program, GLenum pname, GLint *params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_programiv(ctx, program, pname, params);
-}
-
-
-void GLAPIENTRY
-_mesa_GetShaderiv(GLuint shader, GLenum pname, GLint *params)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_shaderiv(ctx, shader, pname, params);
-}
-
-
-void GLAPIENTRY
-_mesa_GetProgramInfoLog(GLuint program, GLsizei bufSize,
-                        GLsizei *length, GLchar *infoLog)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_program_info_log(ctx, program, bufSize, length, infoLog);
-}
-
-
-void GLAPIENTRY
-_mesa_GetShaderInfoLog(GLuint shader, GLsizei bufSize,
-                       GLsizei *length, GLchar *infoLog)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_shader_info_log(ctx, shader, bufSize, length, infoLog);
-}
-
-
-void GLAPIENTRY
-_mesa_GetShaderSourceARB(GLhandleARB shader, GLsizei maxLength,
-                         GLsizei *length, GLcharARB *sourceOut)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   get_shader_source(ctx, shader, maxLength, length, sourceOut);
-}
-
-
-GLhandleARB GLAPIENTRY
-_mesa_GetHandleARB(GLenum pname)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return get_handle(ctx, pname);
-}
-
-
-GLboolean GLAPIENTRY
-_mesa_IsProgram(GLuint name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return is_program(ctx, name);
-}
-
-
-GLboolean GLAPIENTRY
-_mesa_IsShader(GLuint name)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return is_shader(ctx, name);
-}
-
-
-void GLAPIENTRY
-_mesa_LinkProgramARB(GLhandleARB programObj)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   link_program(ctx, programObj);
-}
-
-
-
-/**
- * Read shader source code from a file.
- * Useful for debugging to override an app's shader.
- */
-static GLcharARB *
-read_shader(const char *fname)
-{
-   const int max = 50*1000;
-   FILE *f = fopen(fname, "r");
-   GLcharARB *buffer, *shader;
-   int len;
-
-   if (!f) {
-      return NULL;
-   }
-
-   buffer = (char *) malloc(max);
-   len = fread(buffer, 1, max, f);
-   buffer[len] = 0;
-
-   fclose(f);
-
-   shader = _mesa_strdup(buffer);
-   free(buffer);
-
-   return shader;
-}
-
-
-/**
- * Called via glShaderSource() and glShaderSourceARB() API functions.
- * Basically, concatenate the source code strings into one long string
- * and pass it to _mesa_shader_source().
- */
-void GLAPIENTRY
-_mesa_ShaderSourceARB(GLhandleARB shaderObj, GLsizei count,
-                      const GLcharARB ** string, const GLint * length)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLint *offsets;
-   GLsizei i, totalLength;
-   GLcharARB *source;
-   GLuint checksum;
-
-   if (!shaderObj || string == NULL) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glShaderSourceARB");
-      return;
-   }
-
-   /*
-    * This array holds offsets of where the appropriate string ends, thus the
-    * last element will be set to the total length of the source code.
-    */
-   offsets = (GLint *) malloc(count * sizeof(GLint));
-   if (offsets == NULL) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB");
-      return;
-   }
-
-   for (i = 0; i < count; i++) {
-      if (string[i] == NULL) {
-         free((GLvoid *) offsets);
-         _mesa_error(ctx, GL_INVALID_OPERATION, "glShaderSourceARB(null string)");
-         return;
-      }
-      if (length == NULL || length[i] < 0)
-         offsets[i] = strlen(string[i]);
-      else
-         offsets[i] = length[i];
-      /* accumulate string lengths */
-      if (i > 0)
-         offsets[i] += offsets[i - 1];
-   }
-
-   /* Total length of source string is sum off all strings plus two.
-    * One extra byte for terminating zero, another extra byte to silence
-    * valgrind warnings in the parser/grammer code.
-    */
-   totalLength = offsets[count - 1] + 2;
-   source = (GLcharARB *) malloc(totalLength * sizeof(GLcharARB));
-   if (source == NULL) {
-      free((GLvoid *) offsets);
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB");
-      return;
-   }
-
-   for (i = 0; i < count; i++) {
-      GLint start = (i > 0) ? offsets[i - 1] : 0;
-      memcpy(source + start, string[i],
-             (offsets[i] - start) * sizeof(GLcharARB));
-   }
-   source[totalLength - 1] = '\0';
-   source[totalLength - 2] = '\0';
-
-   if (SHADER_SUBST) {
-      /* Compute the shader's source code checksum then try to open a file
-       * named newshader_<CHECKSUM>.  If it exists, use it in place of the
-       * original shader source code.  For debugging.
-       */
-      char filename[100];
-      GLcharARB *newSource;
-
-      checksum = _mesa_str_checksum(source);
-
-      _mesa_snprintf(filename, sizeof(filename), "newshader_%d", checksum);
-
-      newSource = read_shader(filename);
-      if (newSource) {
-         fprintf(stderr, "Mesa: Replacing shader %u chksum=%d with %s\n",
-                       shaderObj, checksum, filename);
-         free(source);
-         source = newSource;
-      }
-   }      
-
-   shader_source(ctx, shaderObj, source);
-
-   if (SHADER_SUBST) {
-      struct gl_shader *sh = _mesa_lookup_shader(ctx, shaderObj);
-      if (sh)
-         sh->SourceChecksum = checksum; /* save original checksum */
-   }
-
-   free(offsets);
-}
-
-
-void GLAPIENTRY
-_mesa_UseProgramObjectARB(GLhandleARB program)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_shader_program *shProg;
-   struct gl_transform_feedback_object *obj =
-      ctx->TransformFeedback.CurrentObject;
-
-   if (obj->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glUseProgram(transform feedback active)");
-      return;
-   }
-
-   if (program) {
-      shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram");
-      if (!shProg) {
-         return;
-      }
-      if (!shProg->LinkStatus) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glUseProgram(program %u not linked)", program);
-         return;
-      }
-
-      /* debug code */
-      if (ctx->Shader.Flags & GLSL_USE_PROG) {
-         print_shader_info(shProg);
-      }
-   }
-   else {
-      shProg = NULL;
-   }
-
-   _mesa_use_program(ctx, shProg);
-}
-
-
-void GLAPIENTRY
-_mesa_ValidateProgramARB(GLhandleARB program)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   validate_program(ctx, program);
-}
-
-#ifdef FEATURE_ES2
-
-void GLAPIENTRY
-_mesa_GetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype,
-                               GLint* range, GLint* precision)
-{
-   const struct gl_program_constants *limits;
-   const struct gl_precision *p;
-   GET_CURRENT_CONTEXT(ctx);
-
-   switch (shadertype) {
-   case GL_VERTEX_SHADER:
-      limits = &ctx->Const.VertexProgram;
-      break;
-   case GL_FRAGMENT_SHADER:
-      limits = &ctx->Const.FragmentProgram;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetShaderPrecisionFormat(shadertype)");
-      return;
-   }
-
-   switch (precisiontype) {
-   case GL_LOW_FLOAT:
-      p = &limits->LowFloat;
-      break;
-   case GL_MEDIUM_FLOAT:
-      p = &limits->MediumFloat;
-      break;
-   case GL_HIGH_FLOAT:
-      p = &limits->HighFloat;
-      break;
-   case GL_LOW_INT:
-      p = &limits->LowInt;
-      break;
-   case GL_MEDIUM_INT:
-      p = &limits->MediumInt;
-      break;
-   case GL_HIGH_INT:
-      p = &limits->HighInt;
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetShaderPrecisionFormat(precisiontype)");
-      return;
-   }
-
-   range[0] = p->RangeMin;
-   range[1] = p->RangeMax;
-   precision[0] = p->Precision;
-}
-
-
-void GLAPIENTRY
-_mesa_ReleaseShaderCompiler(void)
-{
-   _mesa_destroy_shader_compiler_caches();
-}
-
-
-void GLAPIENTRY
-_mesa_ShaderBinary(GLint n, const GLuint* shaders, GLenum binaryformat,
-                   const void* binary, GLint length)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   (void) n;
-   (void) shaders;
-   (void) binaryformat;
-   (void) binary;
-   (void) length;
-   _mesa_error(ctx, GL_INVALID_OPERATION, __FUNCTION__);
-}
-
-#endif /* FEATURE_ES2 */
-
-
-#if FEATURE_ARB_geometry_shader4
-
-void GLAPIENTRY
-_mesa_ProgramParameteriARB(GLuint program, GLenum pname,
-                           GLint value)
-{
-   struct gl_shader_program *shProg;
-   GET_CURRENT_CONTEXT(ctx);
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   shProg = _mesa_lookup_shader_program_err(ctx, program,
-                                            "glProgramParameteri");
-   if (!shProg)
-      return;
-
-   switch (pname) {
-   case GL_GEOMETRY_VERTICES_OUT_ARB:
-      if (value < 1 ||
-          (unsigned) value > ctx->Const.GeometryProgram.MaxGeometryOutputVertices) {
-         _mesa_error(ctx, GL_INVALID_VALUE,
-                     "glProgramParameteri(GL_GEOMETRY_VERTICES_OUT_ARB=%d",
-                     value);
-         return;
-      }
-      shProg->Geom.VerticesOut = value;
-      break;
-   case GL_GEOMETRY_INPUT_TYPE_ARB:
-      switch (value) {
-      case GL_POINTS:
-      case GL_LINES:
-      case GL_LINES_ADJACENCY_ARB:
-      case GL_TRIANGLES:
-      case GL_TRIANGLES_ADJACENCY_ARB:
-         shProg->Geom.InputType = value;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_VALUE,
-                     "glProgramParameteri(geometry input type = %s",
-                     _mesa_lookup_enum_by_nr(value));
-         return;
-      }
-      break;
-   case GL_GEOMETRY_OUTPUT_TYPE_ARB:
-      switch (value) {
-      case GL_POINTS:
-      case GL_LINE_STRIP:
-      case GL_TRIANGLE_STRIP:
-         shProg->Geom.OutputType = value;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_VALUE,
-                     "glProgramParameteri(geometry output type = %s",
-                     _mesa_lookup_enum_by_nr(value));
-         return;
-      }
-      break;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameteriARB(pname=%s)",
-                  _mesa_lookup_enum_by_nr(pname));
-      break;
-   }
-}
-
-#endif
-
-void
-_mesa_use_shader_program(struct gl_context *ctx, GLenum type,
-			 struct gl_shader_program *shProg)
-{
-   use_shader_program(ctx, type, shProg);
-
-   if (ctx->Driver.UseProgram)
-      ctx->Driver.UseProgram(ctx, shProg);
-}
-
-void GLAPIENTRY
-_mesa_UseShaderProgramEXT(GLenum type, GLuint program)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_shader_program *shProg = NULL;
-
-   if (!validate_shader_target(ctx, type)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glUseShaderProgramEXT(type)");
-      return;
-   }
-
-   if (ctx->TransformFeedback.CurrentObject->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glUseShaderProgramEXT(transform feedback is active)");
-      return;
-   }
-
-   if (program) {
-      shProg = _mesa_lookup_shader_program_err(ctx, program,
-					       "glUseShaderProgramEXT");
-      if (shProg == NULL)
-	 return;
-
-      if (!shProg->LinkStatus) {
-	 _mesa_error(ctx, GL_INVALID_OPERATION,
-		     "glUseShaderProgramEXT(program not linked)");
-	 return;
-      }
-   }
-
-   _mesa_use_shader_program(ctx, type, shProg);
-}
-
-void GLAPIENTRY
-_mesa_ActiveProgramEXT(GLuint program)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_shader_program *shProg = (program != 0)
-      ? _mesa_lookup_shader_program_err(ctx, program, "glActiveProgramEXT")
-      : NULL;
-
-   _mesa_active_program(ctx, shProg, "glActiveProgramEXT");
-   return;
-}
-
-GLuint GLAPIENTRY
-_mesa_CreateShaderProgramEXT(GLenum type, const GLchar *string)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLuint shader = create_shader(ctx, type);
-   GLuint program = 0;
-
-   if (shader) {
-      shader_source(ctx, shader, _mesa_strdup(string));
-      compile_shader(ctx, shader);
-
-      program = create_shader_program(ctx);
-      if (program) {
-	 struct gl_shader_program *shProg;
-	 struct gl_shader *sh;
-	 GLint compiled = GL_FALSE;
-
-	 shProg = _mesa_lookup_shader_program(ctx, program);
-	 sh = _mesa_lookup_shader(ctx, shader);
-
-	 get_shaderiv(ctx, shader, GL_COMPILE_STATUS, &compiled);
-	 if (compiled) {
-	    attach_shader(ctx, program, shader);
-	    link_program(ctx, program);
-	    detach_shader(ctx, program, shader);
-
-#if 0
-	    /* Possibly... */
-	    if (active-user-defined-varyings-in-linked-program) {
-	       append-error-to-info-log;
-	       shProg->LinkStatus = GL_FALSE;
-	    }
-#endif
-	 }
-
-	 ralloc_strcat(&shProg->InfoLog, sh->InfoLog);
-      }
-
-      delete_shader(ctx, shader);
-   }
-
-   return program;
-}
-
-/**
- * Plug in shader-related functions into API dispatch table.
- */
-void
-_mesa_init_shader_dispatch(struct _glapi_table *exec)
-{
-#if FEATURE_GL
-   /* GL_ARB_vertex/fragment_shader */
-   SET_DeleteObjectARB(exec, _mesa_DeleteObjectARB);
-   SET_GetHandleARB(exec, _mesa_GetHandleARB);
-   SET_DetachObjectARB(exec, _mesa_DetachObjectARB);
-   SET_CreateShaderObjectARB(exec, _mesa_CreateShaderObjectARB);
-   SET_ShaderSourceARB(exec, _mesa_ShaderSourceARB);
-   SET_CompileShaderARB(exec, _mesa_CompileShaderARB);
-   SET_CreateProgramObjectARB(exec, _mesa_CreateProgramObjectARB);
-   SET_AttachObjectARB(exec, _mesa_AttachObjectARB);
-   SET_LinkProgramARB(exec, _mesa_LinkProgramARB);
-   SET_UseProgramObjectARB(exec, _mesa_UseProgramObjectARB);
-   SET_ValidateProgramARB(exec, _mesa_ValidateProgramARB);
-   SET_GetObjectParameterfvARB(exec, _mesa_GetObjectParameterfvARB);
-   SET_GetObjectParameterivARB(exec, _mesa_GetObjectParameterivARB);
-   SET_GetInfoLogARB(exec, _mesa_GetInfoLogARB);
-   SET_GetAttachedObjectsARB(exec, _mesa_GetAttachedObjectsARB);
-   SET_GetShaderSourceARB(exec, _mesa_GetShaderSourceARB);
-
-   /* OpenGL 2.0 */
-   SET_AttachShader(exec, _mesa_AttachShader);
-   SET_CreateProgram(exec, _mesa_CreateProgram);
-   SET_CreateShader(exec, _mesa_CreateShader);
-   SET_DeleteProgram(exec, _mesa_DeleteProgram);
-   SET_DeleteShader(exec, _mesa_DeleteShader);
-   SET_DetachShader(exec, _mesa_DetachShader);
-   SET_GetAttachedShaders(exec, _mesa_GetAttachedShaders);
-   SET_GetProgramiv(exec, _mesa_GetProgramiv);
-   SET_GetProgramInfoLog(exec, _mesa_GetProgramInfoLog);
-   SET_GetShaderiv(exec, _mesa_GetShaderiv);
-   SET_GetShaderInfoLog(exec, _mesa_GetShaderInfoLog);
-   SET_IsProgram(exec, _mesa_IsProgram);
-   SET_IsShader(exec, _mesa_IsShader);
-
-#if FEATURE_ARB_vertex_shader
-   SET_BindAttribLocationARB(exec, _mesa_BindAttribLocationARB);
-   SET_GetActiveAttribARB(exec, _mesa_GetActiveAttribARB);
-   SET_GetAttribLocationARB(exec, _mesa_GetAttribLocationARB);
-#endif
-
-#if FEATURE_ARB_geometry_shader4
-   SET_ProgramParameteriARB(exec, _mesa_ProgramParameteriARB);
-#endif
-
-   SET_UseShaderProgramEXT(exec, _mesa_UseShaderProgramEXT);
-   SET_ActiveProgramEXT(exec, _mesa_ActiveProgramEXT);
-   SET_CreateShaderProgramEXT(exec, _mesa_CreateShaderProgramEXT);
-
-   /* GL_EXT_gpu_shader4 / GL 3.0 */
-   SET_BindFragDataLocationEXT(exec, _mesa_BindFragDataLocation);
-   SET_GetFragDataLocationEXT(exec, _mesa_GetFragDataLocation);
-
-   /* GL_ARB_ES2_compatibility */
-   SET_ReleaseShaderCompiler(exec, _mesa_ReleaseShaderCompiler);
-   SET_GetShaderPrecisionFormat(exec, _mesa_GetShaderPrecisionFormat);
-
-#endif /* FEATURE_GL */
-}
-
+/*

+ * Mesa 3-D graphics library

+ *

+ * Copyright (C) 2004-2008  Brian Paul   All Rights Reserved.

+ * Copyright (C) 2009-2010  VMware, Inc.  All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/**

+ * \file shaderapi.c

+ * \author Brian Paul

+ *

+ * Implementation of GLSL-related API functions.

+ * The glUniform* functions are in uniforms.c

+ *

+ *

+ * XXX things to do:

+ * 1. Check that the right error code is generated for all _mesa_error() calls.

+ * 2. Insert FLUSH_VERTICES calls in various places

+ */

+

+

+#include "main/glheader.h"

+#include "main/context.h"

+#include "main/dispatch.h"

+#include "main/enums.h"

+#include "main/hash.h"

+#include "main/mfeatures.h"

+#include "main/mtypes.h"

+#include "main/shaderapi.h"

+#include "main/shaderobj.h"

+#include "program/program.h"

+#include "program/prog_parameter.h"

+#include "program/prog_uniform.h"

+#include "ralloc.h"

+#include <stdbool.h>

+#include "../glsl/glsl_parser_extras.h"

+

+/** Define this to enable shader substitution (see below) */

+#define SHADER_SUBST 0

+

+

+/**

+ * Return mask of GLSL_x flags by examining the MESA_GLSL env var.

+ */

+static GLbitfield

+get_shader_flags(void)

+{

+   GLbitfield flags = 0x0;

+   const char *env = _mesa_getenv("MESA_GLSL");

+

+   if (env) {

+      if (strstr(env, "dump"))

+         flags |= GLSL_DUMP;

+      if (strstr(env, "log"))

+         flags |= GLSL_LOG;

+      if (strstr(env, "nopvert"))

+         flags |= GLSL_NOP_VERT;

+      if (strstr(env, "nopfrag"))

+         flags |= GLSL_NOP_FRAG;

+      if (strstr(env, "nopt"))

+         flags |= GLSL_NO_OPT;

+      else if (strstr(env, "opt"))

+         flags |= GLSL_OPT;

+      if (strstr(env, "uniform"))

+         flags |= GLSL_UNIFORMS;

+      if (strstr(env, "useprog"))

+         flags |= GLSL_USE_PROG;

+   }

+

+   return flags;

+}

+

+

+/**

+ * Initialize context's shader state.

+ */

+void

+_mesa_init_shader_state(struct gl_context *ctx)

+{

+   /* Device drivers may override these to control what kind of instructions

+    * are generated by the GLSL compiler.

+    */

+   struct gl_shader_compiler_options options;

+   gl_shader_type sh;

+

+   memset(&options, 0, sizeof(options));

+   options.MaxUnrollIterations = 32;

+

+   /* Default pragma settings */

+   options.DefaultPragmas.Optimize = GL_TRUE;

+

+   for (sh = 0; sh < MESA_SHADER_TYPES; ++sh)

+      memcpy(&ctx->ShaderCompilerOptions[sh], &options, sizeof(options));

+

+   ctx->Shader.Flags = get_shader_flags();

+}

+

+

+/**

+ * Free the per-context shader-related state.

+ */

+void

+_mesa_free_shader_state(struct gl_context *ctx)

+{

+   _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentVertexProgram, NULL);

+   _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentGeometryProgram,

+				  NULL);

+   _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentFragmentProgram,

+				  NULL);

+   _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, NULL);

+}

+

+

+/**

+ * Return the size of the given GLSL datatype, in floats (components).

+ */

+GLint

+_mesa_sizeof_glsl_type(GLenum type)

+{

+   switch (type) {

+   case GL_FLOAT:

+   case GL_INT:

+   case GL_BOOL:

+   case GL_SAMPLER_1D:

+   case GL_SAMPLER_2D:

+   case GL_SAMPLER_3D:

+   case GL_SAMPLER_CUBE:

+   case GL_SAMPLER_1D_SHADOW:

+   case GL_SAMPLER_2D_SHADOW:

+   case GL_SAMPLER_2D_RECT_ARB:

+   case GL_SAMPLER_2D_RECT_SHADOW_ARB:

+   case GL_SAMPLER_1D_ARRAY_EXT:

+   case GL_SAMPLER_2D_ARRAY_EXT:

+   case GL_SAMPLER_1D_ARRAY_SHADOW_EXT:

+   case GL_SAMPLER_2D_ARRAY_SHADOW_EXT:

+   case GL_SAMPLER_CUBE_SHADOW_EXT:

+      return 1;

+   case GL_FLOAT_VEC2:

+   case GL_INT_VEC2:

+   case GL_UNSIGNED_INT_VEC2:

+   case GL_BOOL_VEC2:

+      return 2;

+   case GL_FLOAT_VEC3:

+   case GL_INT_VEC3:

+   case GL_UNSIGNED_INT_VEC3:

+   case GL_BOOL_VEC3:

+      return 3;

+   case GL_FLOAT_VEC4:

+   case GL_INT_VEC4:

+   case GL_UNSIGNED_INT_VEC4:

+   case GL_BOOL_VEC4:

+      return 4;

+   case GL_FLOAT_MAT2:

+   case GL_FLOAT_MAT2x3:

+   case GL_FLOAT_MAT2x4:

+      return 8; /* two float[4] vectors */

+   case GL_FLOAT_MAT3:

+   case GL_FLOAT_MAT3x2:

+   case GL_FLOAT_MAT3x4:

+      return 12; /* three float[4] vectors */

+   case GL_FLOAT_MAT4:

+   case GL_FLOAT_MAT4x2:

+   case GL_FLOAT_MAT4x3:

+      return 16;  /* four float[4] vectors */

+   default:

+      _mesa_problem(NULL, "Invalid type in _mesa_sizeof_glsl_type()");

+      return 1;

+   }

+}

+

+

+/**

+ * Copy string from <src> to <dst>, up to maxLength characters, returning

+ * length of <dst> in <length>.

+ * \param src  the strings source

+ * \param maxLength  max chars to copy

+ * \param length  returns number of chars copied

+ * \param dst  the string destination

+ */

+void

+_mesa_copy_string(GLchar *dst, GLsizei maxLength,

+                  GLsizei *length, const GLchar *src)

+{

+   GLsizei len;

+   for (len = 0; len < maxLength - 1 && src && src[len]; len++)

+      dst[len] = src[len];

+   if (maxLength > 0)

+      dst[len] = 0;

+   if (length)

+      *length = len;

+}

+

+

+

+/**

+ * Confirm that the a shader type is valid and supported by the implementation

+ *

+ * \param ctx   Current GL context

+ * \param type  Shader target

+ *

+ */

+static bool

+validate_shader_target(const struct gl_context *ctx, GLenum type)

+{

+   switch (type) {

+#if FEATURE_ARB_fragment_shader

+   case GL_FRAGMENT_SHADER:

+      return ctx->Extensions.ARB_fragment_shader;

+#endif

+#if FEATURE_ARB_vertex_shader

+   case GL_VERTEX_SHADER:

+      return ctx->Extensions.ARB_vertex_shader;

+#endif

+#if FEATURE_ARB_geometry_shader4

+   case GL_GEOMETRY_SHADER_ARB:

+      return ctx->Extensions.ARB_geometry_shader4;

+#endif

+   default:

+      return false;

+   }

+}

+

+

+/**

+ * Find the length of the longest transform feedback varying name

+ * which was specified with glTransformFeedbackVaryings().

+ */

+static GLint

+longest_feedback_varying_name(const struct gl_shader_program *shProg)

+{

+   GLuint i;

+   GLint max = 0;

+   for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) {

+      GLint len = strlen(shProg->TransformFeedback.VaryingNames[i]);

+      if (len > max)

+         max = len;

+   }

+   return max;

+}

+

+

+

+static GLboolean

+is_program(struct gl_context *ctx, GLuint name)

+{

+   struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, name);

+   return shProg ? GL_TRUE : GL_FALSE;

+}

+

+

+static GLboolean

+is_shader(struct gl_context *ctx, GLuint name)

+{

+   struct gl_shader *shader = _mesa_lookup_shader(ctx, name);

+   return shader ? GL_TRUE : GL_FALSE;

+}

+

+

+/**

+ * Attach shader to a shader program.

+ */

+static void

+attach_shader(struct gl_context *ctx, GLuint program, GLuint shader)

+{

+   struct gl_shader_program *shProg;

+   struct gl_shader *sh;

+   GLuint i, n;

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glAttachShader");

+   if (!shProg)

+      return;

+

+   sh = _mesa_lookup_shader_err(ctx, shader, "glAttachShader");

+   if (!sh) {

+      return;

+   }

+

+   n = shProg->NumShaders;

+   for (i = 0; i < n; i++) {

+      if (shProg->Shaders[i] == sh) {

+         /* The shader is already attched to this program.  The

+          * GL_ARB_shader_objects spec says:

+          *

+          *     "The error INVALID_OPERATION is generated by AttachObjectARB

+          *     if <obj> is already attached to <containerObj>."

+          */

+         _mesa_error(ctx, GL_INVALID_OPERATION, "glAttachShader");

+         return;

+      }

+   }

+

+   /* grow list */

+   shProg->Shaders = (struct gl_shader **)

+      _mesa_realloc(shProg->Shaders,

+                    n * sizeof(struct gl_shader *),

+                    (n + 1) * sizeof(struct gl_shader *));

+   if (!shProg->Shaders) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glAttachShader");

+      return;

+   }

+

+   /* append */

+   shProg->Shaders[n] = NULL; /* since realloc() didn't zero the new space */

+   _mesa_reference_shader(ctx, &shProg->Shaders[n], sh);

+   shProg->NumShaders++;

+}

+

+

+static GLint

+get_attrib_location(struct gl_context *ctx, GLuint program, const GLchar *name)

+{

+   struct gl_shader_program *shProg

+      = _mesa_lookup_shader_program_err(ctx, program, "glGetAttribLocation");

+

+   if (!shProg) {

+      return -1;

+   }

+

+   if (!shProg->LinkStatus) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glGetAttribLocation(program not linked)");

+      return -1;

+   }

+

+   if (!name)

+      return -1;

+

+   if (shProg->VertexProgram) {

+      const struct gl_program_parameter_list *attribs =

+         shProg->VertexProgram->Base.Attributes;

+      if (attribs) {

+         GLint i = _mesa_lookup_parameter_index(attribs, -1, name);

+         if (i >= 0) {

+            return attribs->Parameters[i].StateIndexes[0];

+         }

+      }

+   }

+   return -1;

+}

+

+

+static void

+bind_attrib_location(struct gl_context *ctx, GLuint program, GLuint index,

+                     const GLchar *name)

+{

+   struct gl_shader_program *shProg;

+   const GLint size = -1; /* unknown size */

+   GLint i, oldIndex;

+   GLenum datatype = GL_FLOAT_VEC4;

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program,

+                                            "glBindAttribLocation");

+   if (!shProg) {

+      return;

+   }

+

+   if (!name)

+      return;

+

+   if (strncmp(name, "gl_", 3) == 0) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glBindAttribLocation(illegal name)");

+      return;

+   }

+

+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(index)");

+      return;

+   }

+

+   if (shProg->LinkStatus) {

+      /* get current index/location for the attribute */

+      oldIndex = get_attrib_location(ctx, program, name);

+   }

+   else {

+      oldIndex = -1;

+   }

+

+   /* this will replace the current value if it's already in the list */

+   i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index);

+   if (i < 0) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindAttribLocation");

+      return;

+   }

+

+   /*

+    * Note that this attribute binding won't go into effect until

+    * glLinkProgram is called again.

+    */

+}

+

+

+static void

+bind_frag_data_location(struct gl_context *ctx, GLuint program,

+                        GLuint colorNumber, const GLchar *name)

+{

+   _mesa_problem(ctx, "bind_frag_data_location() not implemented yet");

+}

+

+

+static GLuint

+create_shader(struct gl_context *ctx, GLenum type)

+{

+   struct gl_shader *sh;

+   GLuint name;

+

+   if (!validate_shader_target(ctx, type)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "CreateShader(type)");

+      return 0;

+   }

+

+   name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1);

+   sh = ctx->Driver.NewShader(ctx, name, type);

+   _mesa_HashInsert(ctx->Shared->ShaderObjects, name, sh);

+

+   return name;

+}

+

+

+static GLuint 

+create_shader_program(struct gl_context *ctx)

+{

+   GLuint name;

+   struct gl_shader_program *shProg;

+

+   name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1);

+

+   shProg = ctx->Driver.NewShaderProgram(ctx, name);

+

+   _mesa_HashInsert(ctx->Shared->ShaderObjects, name, shProg);

+

+   assert(shProg->RefCount == 1);

+

+   return name;

+}

+

+

+/**

+ * Named w/ "2" to indicate OpenGL 2.x vs GL_ARB_fragment_programs's

+ * DeleteProgramARB.

+ */

+static void

+delete_shader_program(struct gl_context *ctx, GLuint name)

+{

+   /*

+    * NOTE: deleting shaders/programs works a bit differently than

+    * texture objects (and buffer objects, etc).  Shader/program

+    * handles/IDs exist in the hash table until the object is really

+    * deleted (refcount==0).  With texture objects, the handle/ID is

+    * removed from the hash table in glDeleteTextures() while the tex

+    * object itself might linger until its refcount goes to zero.

+    */

+   struct gl_shader_program *shProg;

+

+   shProg = _mesa_lookup_shader_program_err(ctx, name, "glDeleteProgram");

+   if (!shProg)

+      return;

+

+   shProg->DeletePending = GL_TRUE;

+

+   /* effectively, decr shProg's refcount */

+   _mesa_reference_shader_program(ctx, &shProg, NULL);

+}

+

+

+static void

+delete_shader(struct gl_context *ctx, GLuint shader)

+{

+   struct gl_shader *sh;

+

+   sh = _mesa_lookup_shader_err(ctx, shader, "glDeleteShader");

+   if (!sh)

+      return;

+

+   sh->DeletePending = GL_TRUE;

+

+   /* effectively, decr sh's refcount */

+   _mesa_reference_shader(ctx, &sh, NULL);

+}

+

+

+static void

+detach_shader(struct gl_context *ctx, GLuint program, GLuint shader)

+{

+   struct gl_shader_program *shProg;

+   GLuint n;

+   GLuint i, j;

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glDetachShader");

+   if (!shProg)

+      return;

+

+   n = shProg->NumShaders;

+

+   for (i = 0; i < n; i++) {

+      if (shProg->Shaders[i]->Name == shader) {

+         /* found it */

+         struct gl_shader **newList;

+

+         /* release */

+         _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL);

+

+         /* alloc new, smaller array */

+         newList = (struct gl_shader **)

+            malloc((n - 1) * sizeof(struct gl_shader *));

+         if (!newList) {

+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDetachShader");

+            return;

+         }

+         for (j = 0; j < i; j++) {

+            newList[j] = shProg->Shaders[j];

+         }

+         while (++i < n)

+            newList[j++] = shProg->Shaders[i];

+         free(shProg->Shaders);

+

+         shProg->Shaders = newList;

+         shProg->NumShaders = n - 1;

+

+#ifdef DEBUG

+         /* sanity check */

+         {

+            for (j = 0; j < shProg->NumShaders; j++) {

+               assert(shProg->Shaders[j]->Type == GL_VERTEX_SHADER ||

+                      shProg->Shaders[j]->Type == GL_FRAGMENT_SHADER);

+               assert(shProg->Shaders[j]->RefCount > 0);

+            }

+         }

+#endif

+

+         return;

+      }

+   }

+

+   /* not found */

+   {

+      GLenum err;

+      if (is_shader(ctx, shader))

+         err = GL_INVALID_OPERATION;

+      else if (is_program(ctx, shader))

+         err = GL_INVALID_OPERATION;

+      else

+         err = GL_INVALID_VALUE;

+      _mesa_error(ctx, err, "glDetachProgram(shader)");

+      return;

+   }

+}

+

+

+static void

+get_active_attrib(struct gl_context *ctx, GLuint program, GLuint index,

+                  GLsizei maxLength, GLsizei *length, GLint *size,

+                  GLenum *type, GLchar *nameOut)

+{

+   const struct gl_program_parameter_list *attribs = NULL;

+   struct gl_shader_program *shProg;

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib");

+   if (!shProg)

+      return;

+

+   if (shProg->VertexProgram)

+      attribs = shProg->VertexProgram->Base.Attributes;

+

+   if (!attribs || index >= attribs->NumParameters) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)");

+      return;

+   }

+

+   _mesa_copy_string(nameOut, maxLength, length,

+                     attribs->Parameters[index].Name);

+

+   if (size)

+      *size = attribs->Parameters[index].Size

+         / _mesa_sizeof_glsl_type(attribs->Parameters[index].DataType);

+

+   if (type)

+      *type = attribs->Parameters[index].DataType;

+}

+

+

+/**

+ * Return list of shaders attached to shader program.

+ */

+static void

+get_attached_shaders(struct gl_context *ctx, GLuint program, GLsizei maxCount,

+                     GLsizei *count, GLuint *obj)

+{

+   struct gl_shader_program *shProg =

+      _mesa_lookup_shader_program_err(ctx, program, "glGetAttachedShaders");

+   if (shProg) {

+      GLuint i;

+      for (i = 0; i < (GLuint) maxCount && i < shProg->NumShaders; i++) {

+         obj[i] = shProg->Shaders[i]->Name;

+      }

+      if (count)

+         *count = i;

+   }

+}

+

+

+static GLint

+get_frag_data_location(struct gl_context *ctx, GLuint program,

+                       const GLchar *name)

+{

+   _mesa_problem(ctx, "get_frag_data_location() not implemented yet");

+   return -1;

+}

+

+

+

+/**

+ * glGetHandleARB() - return ID/name of currently bound shader program.

+ */

+static GLuint

+get_handle(struct gl_context *ctx, GLenum pname)

+{

+   if (pname == GL_PROGRAM_OBJECT_ARB) {

+      if (ctx->Shader.ActiveProgram)

+         return ctx->Shader.ActiveProgram->Name;

+      else

+         return 0;

+   }

+   else {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetHandleARB");

+      return 0;

+   }

+}

+

+

+/**

+ * glGetProgramiv() - get shader program state.

+ * Note that this is for GLSL shader programs, not ARB vertex/fragment

+ * programs (see glGetProgramivARB).

+ */

+static void

+get_programiv(struct gl_context *ctx, GLuint program, GLenum pname, GLint *params)

+{

+   const struct gl_program_parameter_list *attribs;

+   struct gl_shader_program *shProg

+      = _mesa_lookup_shader_program(ctx, program);

+

+   if (!shProg) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramiv(program)");

+      return;

+   }

+

+   if (shProg->VertexProgram)

+      attribs = shProg->VertexProgram->Base.Attributes;

+   else

+      attribs = NULL;

+

+   switch (pname) {

+   case GL_DELETE_STATUS:

+      *params = shProg->DeletePending;

+      break; 

+   case GL_LINK_STATUS:

+      *params = shProg->LinkStatus;

+      break;

+   case GL_VALIDATE_STATUS:

+      *params = shProg->Validated;

+      break;

+   case GL_INFO_LOG_LENGTH:

+      *params = shProg->InfoLog ? strlen(shProg->InfoLog) + 1 : 0;

+      break;

+   case GL_ATTACHED_SHADERS:

+      *params = shProg->NumShaders;

+      break;

+   case GL_ACTIVE_ATTRIBUTES:

+      *params = attribs ? attribs->NumParameters : 0;

+      break;

+   case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:

+      *params = _mesa_longest_parameter_name(attribs, PROGRAM_INPUT) + 1;

+      break;

+   case GL_ACTIVE_UNIFORMS:

+      *params = shProg->Uniforms ? shProg->Uniforms->NumUniforms : 0;

+      break;

+   case GL_ACTIVE_UNIFORM_MAX_LENGTH:

+      *params = _mesa_longest_uniform_name(shProg->Uniforms);

+      if (*params > 0)

+         (*params)++;  /* add one for terminating zero */

+      break;

+   case GL_PROGRAM_BINARY_LENGTH_OES:

+      *params = 0;

+      break;

+#if FEATURE_EXT_transform_feedback

+   case GL_TRANSFORM_FEEDBACK_VARYINGS:

+      *params = shProg->TransformFeedback.NumVarying;

+      break;

+   case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH:

+      *params = longest_feedback_varying_name(shProg) + 1;

+      break;

+   case GL_TRANSFORM_FEEDBACK_BUFFER_MODE:

+      *params = shProg->TransformFeedback.BufferMode;

+      break;

+#endif

+#if FEATURE_ARB_geometry_shader4

+   case GL_GEOMETRY_VERTICES_OUT_ARB:

+      *params = shProg->Geom.VerticesOut;

+      break;

+   case GL_GEOMETRY_INPUT_TYPE_ARB:

+      *params = shProg->Geom.InputType;

+      break;

+   case GL_GEOMETRY_OUTPUT_TYPE_ARB:

+      *params = shProg->Geom.OutputType;

+      break;

+#endif

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramiv(pname)");

+      return;

+   }

+}

+

+

+/**

+ * glGetShaderiv() - get GLSL shader state

+ */

+static void

+get_shaderiv(struct gl_context *ctx, GLuint name, GLenum pname, GLint *params)

+{

+   struct gl_shader *shader =

+      _mesa_lookup_shader_err(ctx, name, "glGetShaderiv");

+

+   if (!shader) {

+      return;

+   }

+

+   switch (pname) {

+   case GL_SHADER_TYPE:

+      *params = shader->Type;

+      break;

+   case GL_DELETE_STATUS:

+      *params = shader->DeletePending;

+      break;

+   case GL_COMPILE_STATUS:

+      *params = shader->CompileStatus;

+      break;

+   case GL_INFO_LOG_LENGTH:

+      *params = shader->InfoLog ? strlen(shader->InfoLog) + 1 : 0;

+      break;

+   case GL_SHADER_SOURCE_LENGTH:

+      *params = shader->Source ? strlen((char *) shader->Source) + 1 : 0;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetShaderiv(pname)");

+      return;

+   }

+}

+

+

+static void

+get_program_info_log(struct gl_context *ctx, GLuint program, GLsizei bufSize,

+                     GLsizei *length, GLchar *infoLog)

+{

+   struct gl_shader_program *shProg

+      = _mesa_lookup_shader_program(ctx, program);

+   if (!shProg) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(program)");

+      return;

+   }

+   _mesa_copy_string(infoLog, bufSize, length, shProg->InfoLog);

+}

+

+

+static void

+get_shader_info_log(struct gl_context *ctx, GLuint shader, GLsizei bufSize,

+                    GLsizei *length, GLchar *infoLog)

+{

+   struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);

+   if (!sh) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(shader)");

+      return;

+   }

+   _mesa_copy_string(infoLog, bufSize, length, sh->InfoLog);

+}

+

+

+/**

+ * Return shader source code.

+ */

+static void

+get_shader_source(struct gl_context *ctx, GLuint shader, GLsizei maxLength,

+                  GLsizei *length, GLchar *sourceOut)

+{

+   struct gl_shader *sh;

+   sh = _mesa_lookup_shader_err(ctx, shader, "glGetShaderSource");

+   if (!sh) {

+      return;

+   }

+   _mesa_copy_string(sourceOut, maxLength, length, sh->Source);

+}

+

+

+/**

+ * Set/replace shader source code.

+ */

+static void

+shader_source(struct gl_context *ctx, GLuint shader, const GLchar *source)

+{

+   struct gl_shader *sh;

+

+   sh = _mesa_lookup_shader_err(ctx, shader, "glShaderSource");

+   if (!sh)

+      return;

+

+   /* free old shader source string and install new one */

+   if (sh->Source) {

+      free((void *) sh->Source);

+   }

+   sh->Source = source;

+   sh->CompileStatus = GL_FALSE;

+#ifdef DEBUG

+   sh->SourceChecksum = _mesa_str_checksum(sh->Source);

+#endif

+}

+

+

+/**

+ * Compile a shader.

+ */

+static void

+compile_shader(struct gl_context *ctx, GLuint shaderObj)

+{

+   struct gl_shader *sh;

+   struct gl_shader_compiler_options *options;

+

+   sh = _mesa_lookup_shader_err(ctx, shaderObj, "glCompileShader");

+   if (!sh)

+      return;

+

+   options = &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(sh->Type)];

+

+   /* set default pragma state for shader */

+   sh->Pragmas = options->DefaultPragmas;

+

+   /* this call will set the sh->CompileStatus field to indicate if

+    * compilation was successful.

+    */

+   _mesa_glsl_compile_shader(ctx, sh);

+}

+

+

+/**

+ * Link a program's shaders.

+ */

+static void

+link_program(struct gl_context *ctx, GLuint program)

+{

+   struct gl_shader_program *shProg;

+   struct gl_transform_feedback_object *obj =

+      ctx->TransformFeedback.CurrentObject;

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glLinkProgram");

+   if (!shProg)

+      return;

+

+   if (obj->Active

+       && (shProg == ctx->Shader.CurrentVertexProgram

+	   || shProg == ctx->Shader.CurrentGeometryProgram

+	   || shProg == ctx->Shader.CurrentFragmentProgram)) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glLinkProgram(transform feedback active");

+      return;

+   }

+

+   FLUSH_VERTICES(ctx, _NEW_PROGRAM);

+

+   _mesa_glsl_link_shader(ctx, shProg);

+

+   /* debug code */

+   if (0) {

+      GLuint i;

+

+      printf("Link %u shaders in program %u: %s\n",

+                   shProg->NumShaders, shProg->Name,

+                   shProg->LinkStatus ? "Success" : "Failed");

+

+      for (i = 0; i < shProg->NumShaders; i++) {

+         printf(" shader %u, type 0x%x\n",

+                      shProg->Shaders[i]->Name,

+                      shProg->Shaders[i]->Type);

+      }

+   }

+}

+

+

+/**

+ * Print basic shader info (for debug).

+ */

+static void

+print_shader_info(const struct gl_shader_program *shProg)

+{

+   GLuint i;

+

+   printf("Mesa: glUseProgram(%u)\n", shProg->Name);

+   for (i = 0; i < shProg->NumShaders; i++) {

+      const char *s;

+      switch (shProg->Shaders[i]->Type) {

+      case GL_VERTEX_SHADER:

+         s = "vertex";

+         break;

+      case GL_FRAGMENT_SHADER:

+         s = "fragment";

+         break;

+      case GL_GEOMETRY_SHADER:

+         s = "geometry";

+         break;

+      default:

+         s = "";

+      }

+      printf("  %s shader %u, checksum %u\n", s, 

+	     shProg->Shaders[i]->Name,

+	     shProg->Shaders[i]->SourceChecksum);

+   }

+   if (shProg->VertexProgram)

+      printf("  vert prog %u\n", shProg->VertexProgram->Base.Id);

+   if (shProg->FragmentProgram)

+      printf("  frag prog %u\n", shProg->FragmentProgram->Base.Id);

+}

+

+

+/**

+ * Use the named shader program for subsequent glUniform calls

+ */

+void

+_mesa_active_program(struct gl_context *ctx, struct gl_shader_program *shProg,

+		     const char *caller)

+{

+   if ((shProg != NULL) && !shProg->LinkStatus) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+		  "%s(program %u not linked)", caller, shProg->Name);

+      return;

+   }

+

+   if (ctx->Shader.ActiveProgram != shProg) {

+      _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, shProg);

+   }

+}

+

+/**

+ */

+static bool

+use_shader_program(struct gl_context *ctx, GLenum type,

+		   struct gl_shader_program *shProg)

+{

+   struct gl_shader_program **target;

+

+   switch (type) {

+#if FEATURE_ARB_vertex_shader

+   case GL_VERTEX_SHADER:

+      target = &ctx->Shader.CurrentVertexProgram;

+      if ((shProg == NULL)

+	  || (shProg->_LinkedShaders[MESA_SHADER_VERTEX] == NULL)) {

+	 shProg = NULL;

+      }

+      break;

+#endif

+#if FEATURE_ARB_geometry_shader4

+   case GL_GEOMETRY_SHADER_ARB:

+      target = &ctx->Shader.CurrentGeometryProgram;

+      if ((shProg == NULL)

+	  || (shProg->_LinkedShaders[MESA_SHADER_GEOMETRY] == NULL)) {

+	 shProg = NULL;

+      }

+      break;

+#endif

+#if FEATURE_ARB_fragment_shader

+   case GL_FRAGMENT_SHADER:

+      target = &ctx->Shader.CurrentFragmentProgram;

+      if ((shProg == NULL)

+	  || (shProg->_LinkedShaders[MESA_SHADER_FRAGMENT] == NULL)) {

+	 shProg = NULL;

+      }

+      break;

+#endif

+   default:

+      return false;

+   }

+

+   if (*target != shProg) {

+      FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);

+      _mesa_reference_shader_program(ctx, target, shProg);

+      return true;

+   }

+

+   return false;

+}

+

+/**

+ * Use the named shader program for subsequent rendering.

+ */

+void

+_mesa_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)

+{

+   use_shader_program(ctx, GL_VERTEX_SHADER, shProg);

+   use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, shProg);

+   use_shader_program(ctx, GL_FRAGMENT_SHADER, shProg);

+   _mesa_active_program(ctx, shProg, "glUseProgram");

+

+   if (ctx->Driver.UseProgram)

+      ctx->Driver.UseProgram(ctx, shProg);

+}

+

+

+/**

+ * Validate a program's samplers.

+ * Specifically, check that there aren't two samplers of different types

+ * pointing to the same texture unit.

+ * \return GL_TRUE if valid, GL_FALSE if invalid

+ */

+static GLboolean

+validate_samplers(const struct gl_program *prog, char *errMsg)

+{

+   static const char *targetName[] = {

+      "TEXTURE_2D_ARRAY",

+      "TEXTURE_1D_ARRAY",

+      "TEXTURE_CUBE",

+      "TEXTURE_3D",

+      "TEXTURE_RECT",

+      "TEXTURE_2D",

+      "TEXTURE_1D",

+   };

+   GLint targetUsed[MAX_TEXTURE_IMAGE_UNITS];

+   GLbitfield samplersUsed = prog->SamplersUsed;

+   GLuint i;

+

+   assert(Elements(targetName) == NUM_TEXTURE_TARGETS);

+

+   if (samplersUsed == 0x0)

+      return GL_TRUE;

+

+   for (i = 0; i < Elements(targetUsed); i++)

+      targetUsed[i] = -1;

+

+   /* walk over bits which are set in 'samplers' */

+   while (samplersUsed) {

+      GLuint unit;

+      gl_texture_index target;

+      GLint sampler = _mesa_ffs(samplersUsed) - 1;

+      assert(sampler >= 0);

+      assert(sampler < MAX_TEXTURE_IMAGE_UNITS);

+      unit = prog->SamplerUnits[sampler];

+      target = prog->SamplerTargets[sampler];

+      if (targetUsed[unit] != -1 && targetUsed[unit] != (int) target) {

+         _mesa_snprintf(errMsg, 100,

+		  "Texture unit %d is accessed both as %s and %s",

+		  unit, targetName[targetUsed[unit]], targetName[target]);

+         return GL_FALSE;

+      }

+      targetUsed[unit] = target;

+      samplersUsed ^= (1 << sampler);

+   }

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Do validation of the given shader program.

+ * \param errMsg  returns error message if validation fails.

+ * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg)

+ */

+static GLboolean

+validate_shader_program(const struct gl_shader_program *shProg,

+                        char *errMsg)

+{

+   const struct gl_vertex_program *vp = shProg->VertexProgram;

+   const struct gl_fragment_program *fp = shProg->FragmentProgram;

+

+   if (!shProg->LinkStatus) {

+      return GL_FALSE;

+   }

+

+   /* From the GL spec, a program is invalid if any of these are true:

+

+     any two active samplers in the current program object are of

+     different types, but refer to the same texture image unit,

+

+     any active sampler in the current program object refers to a texture

+     image unit where fixed-function fragment processing accesses a

+     texture target that does not match the sampler type, or 

+

+     the sum of the number of active samplers in the program and the

+     number of texture image units enabled for fixed-function fragment

+     processing exceeds the combined limit on the total number of texture

+     image units allowed.

+   */

+

+

+   /*

+    * Check: any two active samplers in the current program object are of

+    * different types, but refer to the same texture image unit,

+    */

+   if (vp && !validate_samplers(&vp->Base, errMsg)) {

+      return GL_FALSE;

+   }

+   if (fp && !validate_samplers(&fp->Base, errMsg)) {

+      return GL_FALSE;

+   }

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Called via glValidateProgram()

+ */

+static void

+validate_program(struct gl_context *ctx, GLuint program)

+{

+   struct gl_shader_program *shProg;

+   char errMsg[100];

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glValidateProgram");

+   if (!shProg) {

+      return;

+   }

+

+   shProg->Validated = validate_shader_program(shProg, errMsg);

+   if (!shProg->Validated) {

+      /* update info log */

+      if (shProg->InfoLog) {

+         ralloc_free(shProg->InfoLog);

+      }

+      shProg->InfoLog = ralloc_strdup(shProg, errMsg);

+   }

+}

+

+

+

+void GLAPIENTRY

+_mesa_AttachObjectARB(GLhandleARB program, GLhandleARB shader)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   attach_shader(ctx, program, shader);

+}

+

+

+void GLAPIENTRY

+_mesa_AttachShader(GLuint program, GLuint shader)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   attach_shader(ctx, program, shader);

+}

+

+

+void GLAPIENTRY

+_mesa_BindAttribLocationARB(GLhandleARB program, GLuint index,

+                            const GLcharARB *name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   bind_attrib_location(ctx, program, index, name);

+}

+

+

+/* GL_EXT_gpu_shader4, GL3 */

+void GLAPIENTRY

+_mesa_BindFragDataLocation(GLuint program, GLuint colorNumber,

+                           const GLchar *name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   bind_frag_data_location(ctx, program, colorNumber, name);

+}

+

+

+void GLAPIENTRY

+_mesa_CompileShaderARB(GLhandleARB shaderObj)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glCompileShader %u\n", shaderObj);

+   compile_shader(ctx, shaderObj);

+}

+

+

+GLuint GLAPIENTRY

+_mesa_CreateShader(GLenum type)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glCreateShader %s\n", _mesa_lookup_enum_by_nr(type));

+   return create_shader(ctx, type);

+}

+

+

+GLhandleARB GLAPIENTRY

+_mesa_CreateShaderObjectARB(GLenum type)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return create_shader(ctx, type);

+}

+

+

+GLuint GLAPIENTRY

+_mesa_CreateProgram(void)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glCreateProgram\n");

+   return create_shader_program(ctx);

+}

+

+

+GLhandleARB GLAPIENTRY

+_mesa_CreateProgramObjectARB(void)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return create_shader_program(ctx);

+}

+

+

+void GLAPIENTRY

+_mesa_DeleteObjectARB(GLhandleARB obj)

+{

+   if (MESA_VERBOSE & VERBOSE_API) {

+      GET_CURRENT_CONTEXT(ctx);

+      _mesa_debug(ctx, "glDeleteObjectARB(%u)\n", obj);

+   }

+

+   if (obj) {

+      GET_CURRENT_CONTEXT(ctx);

+      if (is_program(ctx, obj)) {

+         delete_shader_program(ctx, obj);

+      }

+      else if (is_shader(ctx, obj)) {

+         delete_shader(ctx, obj);

+      }

+      else {

+         /* error? */

+      }

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_DeleteProgram(GLuint name)

+{

+   if (name) {

+      GET_CURRENT_CONTEXT(ctx);

+      delete_shader_program(ctx, name);

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_DeleteShader(GLuint name)

+{

+   if (name) {

+      GET_CURRENT_CONTEXT(ctx);

+      delete_shader(ctx, name);

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_DetachObjectARB(GLhandleARB program, GLhandleARB shader)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   detach_shader(ctx, program, shader);

+}

+

+

+void GLAPIENTRY

+_mesa_DetachShader(GLuint program, GLuint shader)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   detach_shader(ctx, program, shader);

+}

+

+

+void GLAPIENTRY

+_mesa_GetActiveAttribARB(GLhandleARB program, GLuint index,

+                         GLsizei maxLength, GLsizei * length, GLint * size,

+                         GLenum * type, GLcharARB * name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_active_attrib(ctx, program, index, maxLength, length, size, type, name);

+}

+

+

+void GLAPIENTRY

+_mesa_GetAttachedObjectsARB(GLhandleARB container, GLsizei maxCount,

+                            GLsizei * count, GLhandleARB * obj)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_attached_shaders(ctx, container, maxCount, count, obj);

+}

+

+

+void GLAPIENTRY

+_mesa_GetAttachedShaders(GLuint program, GLsizei maxCount,

+                         GLsizei *count, GLuint *obj)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_attached_shaders(ctx, program, maxCount, count, obj);

+}

+

+

+GLint GLAPIENTRY

+_mesa_GetAttribLocationARB(GLhandleARB program, const GLcharARB * name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return get_attrib_location(ctx, program, name);

+}

+

+

+/* GL_EXT_gpu_shader4, GL3 */

+GLint GLAPIENTRY

+_mesa_GetFragDataLocation(GLuint program, const GLchar *name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return get_frag_data_location(ctx, program, name);

+}

+

+

+

+void GLAPIENTRY

+_mesa_GetInfoLogARB(GLhandleARB object, GLsizei maxLength, GLsizei * length,

+                    GLcharARB * infoLog)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   if (is_program(ctx, object)) {

+      get_program_info_log(ctx, object, maxLength, length, infoLog);

+   }

+   else if (is_shader(ctx, object)) {

+      get_shader_info_log(ctx, object, maxLength, length, infoLog);

+   }

+   else {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetInfoLogARB");

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_GetObjectParameterivARB(GLhandleARB object, GLenum pname, GLint *params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   /* Implement in terms of GetProgramiv, GetShaderiv */

+   if (is_program(ctx, object)) {

+      if (pname == GL_OBJECT_TYPE_ARB) {

+	 *params = GL_PROGRAM_OBJECT_ARB;

+      }

+      else {

+	 get_programiv(ctx, object, pname, params);

+      }

+   }

+   else if (is_shader(ctx, object)) {

+      if (pname == GL_OBJECT_TYPE_ARB) {

+	 *params = GL_SHADER_OBJECT_ARB;

+      }

+      else {

+	 get_shaderiv(ctx, object, pname, params);

+      }

+   }

+   else {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetObjectParameterivARB");

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_GetObjectParameterfvARB(GLhandleARB object, GLenum pname,

+                              GLfloat *params)

+{

+   GLint iparams[1];  /* XXX is one element enough? */

+   _mesa_GetObjectParameterivARB(object, pname, iparams);

+   params[0] = (GLfloat) iparams[0];

+}

+

+

+void GLAPIENTRY

+_mesa_GetProgramiv(GLuint program, GLenum pname, GLint *params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_programiv(ctx, program, pname, params);

+}

+

+

+void GLAPIENTRY

+_mesa_GetShaderiv(GLuint shader, GLenum pname, GLint *params)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_shaderiv(ctx, shader, pname, params);

+}

+

+

+void GLAPIENTRY

+_mesa_GetProgramInfoLog(GLuint program, GLsizei bufSize,

+                        GLsizei *length, GLchar *infoLog)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_program_info_log(ctx, program, bufSize, length, infoLog);

+}

+

+

+void GLAPIENTRY

+_mesa_GetShaderInfoLog(GLuint shader, GLsizei bufSize,

+                       GLsizei *length, GLchar *infoLog)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_shader_info_log(ctx, shader, bufSize, length, infoLog);

+}

+

+

+void GLAPIENTRY

+_mesa_GetShaderSourceARB(GLhandleARB shader, GLsizei maxLength,

+                         GLsizei *length, GLcharARB *sourceOut)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   get_shader_source(ctx, shader, maxLength, length, sourceOut);

+}

+

+

+GLhandleARB GLAPIENTRY

+_mesa_GetHandleARB(GLenum pname)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return get_handle(ctx, pname);

+}

+

+

+GLboolean GLAPIENTRY

+_mesa_IsProgram(GLuint name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return is_program(ctx, name);

+}

+

+

+GLboolean GLAPIENTRY

+_mesa_IsShader(GLuint name)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   return is_shader(ctx, name);

+}

+

+

+void GLAPIENTRY

+_mesa_LinkProgramARB(GLhandleARB programObj)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   link_program(ctx, programObj);

+}

+

+

+

+/**

+ * Read shader source code from a file.

+ * Useful for debugging to override an app's shader.

+ */

+static GLcharARB *

+read_shader(const char *fname)

+{

+   const int max = 50*1000;

+   FILE *f = fopen(fname, "r");

+   GLcharARB *buffer, *shader;

+   int len;

+

+   if (!f) {

+      return NULL;

+   }

+

+   buffer = (char *) malloc(max);

+   len = fread(buffer, 1, max, f);

+   buffer[len] = 0;

+

+   fclose(f);

+

+   shader = _mesa_strdup(buffer);

+   free(buffer);

+

+   return shader;

+}

+

+

+/**

+ * Called via glShaderSource() and glShaderSourceARB() API functions.

+ * Basically, concatenate the source code strings into one long string

+ * and pass it to _mesa_shader_source().

+ */

+void GLAPIENTRY

+_mesa_ShaderSourceARB(GLhandleARB shaderObj, GLsizei count,

+                      const GLcharARB ** string, const GLint * length)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLint *offsets;

+   GLsizei i, totalLength;

+   GLcharARB *source;

+   GLuint checksum;

+

+   if (!shaderObj || string == NULL) {

+      _mesa_error(ctx, GL_INVALID_VALUE, "glShaderSourceARB");

+      return;

+   }

+

+   /*

+    * This array holds offsets of where the appropriate string ends, thus the

+    * last element will be set to the total length of the source code.

+    */

+   offsets = (GLint *) malloc(count * sizeof(GLint));

+   if (offsets == NULL) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB");

+      return;

+   }

+

+   for (i = 0; i < count; i++) {

+      if (string[i] == NULL) {

+         free((GLvoid *) offsets);

+         _mesa_error(ctx, GL_INVALID_OPERATION, "glShaderSourceARB(null string)");

+         return;

+      }

+      if (length == NULL || length[i] < 0)

+         offsets[i] = strlen(string[i]);

+      else

+         offsets[i] = length[i];

+      /* accumulate string lengths */

+      if (i > 0)

+         offsets[i] += offsets[i - 1];

+   }

+

+   /* Total length of source string is sum off all strings plus two.

+    * One extra byte for terminating zero, another extra byte to silence

+    * valgrind warnings in the parser/grammer code.

+    */

+   totalLength = offsets[count - 1] + 2;

+   source = (GLcharARB *) malloc(totalLength * sizeof(GLcharARB));

+   if (source == NULL) {

+      free((GLvoid *) offsets);

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB");

+      return;

+   }

+

+   for (i = 0; i < count; i++) {

+      GLint start = (i > 0) ? offsets[i - 1] : 0;

+      memcpy(source + start, string[i],

+             (offsets[i] - start) * sizeof(GLcharARB));

+   }

+   source[totalLength - 1] = '\0';

+   source[totalLength - 2] = '\0';

+

+   if (SHADER_SUBST) {

+      /* Compute the shader's source code checksum then try to open a file

+       * named newshader_<CHECKSUM>.  If it exists, use it in place of the

+       * original shader source code.  For debugging.

+       */

+      char filename[100];

+      GLcharARB *newSource;

+

+      checksum = _mesa_str_checksum(source);

+

+      _mesa_snprintf(filename, sizeof(filename), "newshader_%d", checksum);

+

+      newSource = read_shader(filename);

+      if (newSource) {

+         fprintf(stderr, "Mesa: Replacing shader %u chksum=%d with %s\n",

+                       shaderObj, checksum, filename);

+         free(source);

+         source = newSource;

+      }

+   }      

+

+   shader_source(ctx, shaderObj, source);

+

+   if (SHADER_SUBST) {

+      struct gl_shader *sh = _mesa_lookup_shader(ctx, shaderObj);

+      if (sh)

+         sh->SourceChecksum = checksum; /* save original checksum */

+   }

+

+   free(offsets);

+}

+

+

+void GLAPIENTRY

+_mesa_UseProgramObjectARB(GLhandleARB program)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_shader_program *shProg;

+   struct gl_transform_feedback_object *obj =

+      ctx->TransformFeedback.CurrentObject;

+

+   if (obj->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glUseProgram(transform feedback active)");

+      return;

+   }

+

+   if (program) {

+      shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram");

+      if (!shProg) {

+         return;

+      }

+      if (!shProg->LinkStatus) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "glUseProgram(program %u not linked)", program);

+         return;

+      }

+

+      /* debug code */

+      if (ctx->Shader.Flags & GLSL_USE_PROG) {

+         print_shader_info(shProg);

+      }

+   }

+   else {

+      shProg = NULL;

+   }

+

+   _mesa_use_program(ctx, shProg);

+}

+

+

+void GLAPIENTRY

+_mesa_ValidateProgramARB(GLhandleARB program)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   validate_program(ctx, program);

+}

+

+#ifdef FEATURE_ES2

+

+void GLAPIENTRY

+_mesa_GetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype,

+                               GLint* range, GLint* precision)

+{

+   const struct gl_program_constants *limits;

+   const struct gl_precision *p;

+   GET_CURRENT_CONTEXT(ctx);

+

+   switch (shadertype) {

+   case GL_VERTEX_SHADER:

+      limits = &ctx->Const.VertexProgram;

+      break;

+   case GL_FRAGMENT_SHADER:

+      limits = &ctx->Const.FragmentProgram;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetShaderPrecisionFormat(shadertype)");

+      return;

+   }

+

+   switch (precisiontype) {

+   case GL_LOW_FLOAT:

+      p = &limits->LowFloat;

+      break;

+   case GL_MEDIUM_FLOAT:

+      p = &limits->MediumFloat;

+      break;

+   case GL_HIGH_FLOAT:

+      p = &limits->HighFloat;

+      break;

+   case GL_LOW_INT:

+      p = &limits->LowInt;

+      break;

+   case GL_MEDIUM_INT:

+      p = &limits->MediumInt;

+      break;

+   case GL_HIGH_INT:

+      p = &limits->HighInt;

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetShaderPrecisionFormat(precisiontype)");

+      return;

+   }

+

+   range[0] = p->RangeMin;

+   range[1] = p->RangeMax;

+   precision[0] = p->Precision;

+}

+

+

+void GLAPIENTRY

+_mesa_ReleaseShaderCompiler(void)

+{

+   _mesa_destroy_shader_compiler_caches();

+}

+

+

+void GLAPIENTRY

+_mesa_ShaderBinary(GLint n, const GLuint* shaders, GLenum binaryformat,

+                   const void* binary, GLint length)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   (void) n;

+   (void) shaders;

+   (void) binaryformat;

+   (void) binary;

+   (void) length;

+   _mesa_error(ctx, GL_INVALID_OPERATION, __FUNCTION__);

+}

+

+#endif /* FEATURE_ES2 */

+

+

+#if FEATURE_ARB_geometry_shader4

+

+void GLAPIENTRY

+_mesa_ProgramParameteriARB(GLuint program, GLenum pname,

+                           GLint value)

+{

+   struct gl_shader_program *shProg;

+   GET_CURRENT_CONTEXT(ctx);

+

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   shProg = _mesa_lookup_shader_program_err(ctx, program,

+                                            "glProgramParameteri");

+   if (!shProg)

+      return;

+

+   switch (pname) {

+   case GL_GEOMETRY_VERTICES_OUT_ARB:

+      if (value < 1 ||

+          (unsigned) value > ctx->Const.GeometryProgram.MaxGeometryOutputVertices) {

+         _mesa_error(ctx, GL_INVALID_VALUE,

+                     "glProgramParameteri(GL_GEOMETRY_VERTICES_OUT_ARB=%d",

+                     value);

+         return;

+      }

+      shProg->Geom.VerticesOut = value;

+      break;

+   case GL_GEOMETRY_INPUT_TYPE_ARB:

+      switch (value) {

+      case GL_POINTS:

+      case GL_LINES:

+      case GL_LINES_ADJACENCY_ARB:

+      case GL_TRIANGLES:

+      case GL_TRIANGLES_ADJACENCY_ARB:

+         shProg->Geom.InputType = value;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_VALUE,

+                     "glProgramParameteri(geometry input type = %s",

+                     _mesa_lookup_enum_by_nr(value));

+         return;

+      }

+      break;

+   case GL_GEOMETRY_OUTPUT_TYPE_ARB:

+      switch (value) {

+      case GL_POINTS:

+      case GL_LINE_STRIP:

+      case GL_TRIANGLE_STRIP:

+         shProg->Geom.OutputType = value;

+         break;

+      default:

+         _mesa_error(ctx, GL_INVALID_VALUE,

+                     "glProgramParameteri(geometry output type = %s",

+                     _mesa_lookup_enum_by_nr(value));

+         return;

+      }

+      break;

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameteriARB(pname=%s)",

+                  _mesa_lookup_enum_by_nr(pname));

+      break;

+   }

+}

+

+#endif

+

+void

+_mesa_use_shader_program(struct gl_context *ctx, GLenum type,

+			 struct gl_shader_program *shProg)

+{

+   use_shader_program(ctx, type, shProg);

+

+   if (ctx->Driver.UseProgram)

+      ctx->Driver.UseProgram(ctx, shProg);

+}

+

+void GLAPIENTRY

+_mesa_UseShaderProgramEXT(GLenum type, GLuint program)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_shader_program *shProg = NULL;

+

+   if (!validate_shader_target(ctx, type)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glUseShaderProgramEXT(type)");

+      return;

+   }

+

+   if (ctx->TransformFeedback.CurrentObject->Active) {

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glUseShaderProgramEXT(transform feedback is active)");

+      return;

+   }

+

+   if (program) {

+      shProg = _mesa_lookup_shader_program_err(ctx, program,

+					       "glUseShaderProgramEXT");

+      if (shProg == NULL)

+	 return;

+

+      if (!shProg->LinkStatus) {

+	 _mesa_error(ctx, GL_INVALID_OPERATION,

+		     "glUseShaderProgramEXT(program not linked)");

+	 return;

+      }

+   }

+

+   _mesa_use_shader_program(ctx, type, shProg);

+}

+

+void GLAPIENTRY

+_mesa_ActiveProgramEXT(GLuint program)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_shader_program *shProg = (program != 0)

+      ? _mesa_lookup_shader_program_err(ctx, program, "glActiveProgramEXT")

+      : NULL;

+

+   _mesa_active_program(ctx, shProg, "glActiveProgramEXT");

+   return;

+}

+

+GLuint GLAPIENTRY

+_mesa_CreateShaderProgramEXT(GLenum type, const GLchar *string)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLuint shader = create_shader(ctx, type);

+   GLuint program = 0;

+

+   if (shader) {

+      shader_source(ctx, shader, _mesa_strdup(string));

+      compile_shader(ctx, shader);

+

+      program = create_shader_program(ctx);

+      if (program) {

+	 struct gl_shader_program *shProg;

+	 struct gl_shader *sh;

+	 GLint compiled = GL_FALSE;

+

+	 shProg = _mesa_lookup_shader_program(ctx, program);

+	 sh = _mesa_lookup_shader(ctx, shader);

+

+	 get_shaderiv(ctx, shader, GL_COMPILE_STATUS, &compiled);

+	 if (compiled) {

+	    attach_shader(ctx, program, shader);

+	    link_program(ctx, program);

+	    detach_shader(ctx, program, shader);

+

+#if 0

+	    /* Possibly... */

+	    if (active-user-defined-varyings-in-linked-program) {

+	       append-error-to-info-log;

+	       shProg->LinkStatus = GL_FALSE;

+	    }

+#endif

+	 }

+

+	 ralloc_strcat(&shProg->InfoLog, sh->InfoLog);

+      }

+

+      delete_shader(ctx, shader);

+   }

+

+   return program;

+}

+

+/**

+ * Plug in shader-related functions into API dispatch table.

+ */

+void

+_mesa_init_shader_dispatch(struct _glapi_table *exec)

+{

+#if FEATURE_GL

+   /* GL_ARB_vertex/fragment_shader */

+   SET_DeleteObjectARB(exec, _mesa_DeleteObjectARB);

+   SET_GetHandleARB(exec, _mesa_GetHandleARB);

+   SET_DetachObjectARB(exec, _mesa_DetachObjectARB);

+   SET_CreateShaderObjectARB(exec, _mesa_CreateShaderObjectARB);

+   SET_ShaderSourceARB(exec, _mesa_ShaderSourceARB);

+   SET_CompileShaderARB(exec, _mesa_CompileShaderARB);

+   SET_CreateProgramObjectARB(exec, _mesa_CreateProgramObjectARB);

+   SET_AttachObjectARB(exec, _mesa_AttachObjectARB);

+   SET_LinkProgramARB(exec, _mesa_LinkProgramARB);

+   SET_UseProgramObjectARB(exec, _mesa_UseProgramObjectARB);

+   SET_ValidateProgramARB(exec, _mesa_ValidateProgramARB);

+   SET_GetObjectParameterfvARB(exec, _mesa_GetObjectParameterfvARB);

+   SET_GetObjectParameterivARB(exec, _mesa_GetObjectParameterivARB);

+   SET_GetInfoLogARB(exec, _mesa_GetInfoLogARB);

+   SET_GetAttachedObjectsARB(exec, _mesa_GetAttachedObjectsARB);

+   SET_GetShaderSourceARB(exec, _mesa_GetShaderSourceARB);

+

+   /* OpenGL 2.0 */

+   SET_AttachShader(exec, _mesa_AttachShader);

+   SET_CreateProgram(exec, _mesa_CreateProgram);

+   SET_CreateShader(exec, _mesa_CreateShader);

+   SET_DeleteProgram(exec, _mesa_DeleteProgram);

+   SET_DeleteShader(exec, _mesa_DeleteShader);

+   SET_DetachShader(exec, _mesa_DetachShader);

+   SET_GetAttachedShaders(exec, _mesa_GetAttachedShaders);

+   SET_GetProgramiv(exec, _mesa_GetProgramiv);

+   SET_GetProgramInfoLog(exec, _mesa_GetProgramInfoLog);

+   SET_GetShaderiv(exec, _mesa_GetShaderiv);

+   SET_GetShaderInfoLog(exec, _mesa_GetShaderInfoLog);

+   SET_IsProgram(exec, _mesa_IsProgram);

+   SET_IsShader(exec, _mesa_IsShader);

+

+#if FEATURE_ARB_vertex_shader

+   SET_BindAttribLocationARB(exec, _mesa_BindAttribLocationARB);

+   SET_GetActiveAttribARB(exec, _mesa_GetActiveAttribARB);

+   SET_GetAttribLocationARB(exec, _mesa_GetAttribLocationARB);

+#endif

+

+#if FEATURE_ARB_geometry_shader4

+   SET_ProgramParameteriARB(exec, _mesa_ProgramParameteriARB);

+#endif

+

+   SET_UseShaderProgramEXT(exec, _mesa_UseShaderProgramEXT);

+   SET_ActiveProgramEXT(exec, _mesa_ActiveProgramEXT);

+   SET_CreateShaderProgramEXT(exec, _mesa_CreateShaderProgramEXT);

+

+   /* GL_EXT_gpu_shader4 / GL 3.0 */

+   SET_BindFragDataLocationEXT(exec, _mesa_BindFragDataLocation);

+   SET_GetFragDataLocationEXT(exec, _mesa_GetFragDataLocation);

+

+   /* GL_ARB_ES2_compatibility */

+   SET_ReleaseShaderCompiler(exec, _mesa_ReleaseShaderCompiler);

+   SET_GetShaderPrecisionFormat(exec, _mesa_GetShaderPrecisionFormat);

+

+#endif /* FEATURE_GL */

+}

+

diff --git a/mesalib/src/mesa/main/state.c b/mesalib/src/mesa/main/state.c
index 502c42929..f11578faf 100644
--- a/mesalib/src/mesa/main/state.c
+++ b/mesalib/src/mesa/main/state.c
@@ -1,734 +1,734 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.3
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file state.c
- * State management.
- * 
- * This file manages recalculation of derived values in struct gl_context.
- */
-
-
-#include "glheader.h"
-#include "mtypes.h"
-#include "context.h"
-#include "debug.h"
-#include "macros.h"
-#include "ffvertex_prog.h"
-#include "framebuffer.h"
-#include "light.h"
-#include "matrix.h"
-#include "pixel.h"
-#include "program/program.h"
-#include "program/prog_parameter.h"
-#include "state.h"
-#include "stencil.h"
-#include "texenvprogram.h"
-#include "texobj.h"
-#include "texstate.h"
-
-
-static void
-update_separate_specular(struct gl_context *ctx)
-{
-   if (NEED_SECONDARY_COLOR(ctx))
-      ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
-   else
-      ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
-}
-
-
-/**
- * Compute the index of the last array element that can be safely accessed
- * in a vertex array.  We can really only do this when the array lives in
- * a VBO.
- * The array->_MaxElement field will be updated.
- * Later in glDrawArrays/Elements/etc we can do some bounds checking.
- */
-static void
-compute_max_element(struct gl_client_array *array)
-{
-   assert(array->Enabled);
-   if (array->BufferObj->Name) {
-      GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr;
-      GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size;
-
-      if (offset < obj_size) {
-	 array->_MaxElement = (obj_size - offset +
-			       array->StrideB -
-			       array->_ElementSize) / array->StrideB;
-      } else {
-	 array->_MaxElement = 0;
-      }
-   }
-   else {
-      /* user-space array, no idea how big it is */
-      array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
-   }
-}
-
-
-/**
- * Helper for update_arrays().
- * \return  min(current min, array->_MaxElement).
- */
-static GLuint
-update_min(GLuint min, struct gl_client_array *array)
-{
-   compute_max_element(array);
-   return MIN2(min, array->_MaxElement);
-}
-
-
-/**
- * Update ctx->Array._MaxElement (the max legal index into all enabled arrays).
- * Need to do this upon new array state or new buffer object state.
- */
-static void
-update_arrays( struct gl_context *ctx )
-{
-   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
-   GLuint i, min = ~0;
-
-   /* find min of _MaxElement values for all enabled arrays */
-
-   /* 0 */
-   if (ctx->VertexProgram._Current
-       && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]);
-   }
-   else if (arrayObj->Vertex.Enabled) {
-      min = update_min(min, &arrayObj->Vertex);
-   }
-
-   /* 1 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]);
-   }
-   /* no conventional vertex weight array */
-
-   /* 2 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]);
-   }
-   else if (arrayObj->Normal.Enabled) {
-      min = update_min(min, &arrayObj->Normal);
-   }
-
-   /* 3 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]);
-   }
-   else if (arrayObj->Color.Enabled) {
-      min = update_min(min, &arrayObj->Color);
-   }
-
-   /* 4 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]);
-   }
-   else if (arrayObj->SecondaryColor.Enabled) {
-      min = update_min(min, &arrayObj->SecondaryColor);
-   }
-
-   /* 5 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]);
-   }
-   else if (arrayObj->FogCoord.Enabled) {
-      min = update_min(min, &arrayObj->FogCoord);
-   }
-
-   /* 6 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]);
-   }
-   else if (arrayObj->Index.Enabled) {
-      min = update_min(min, &arrayObj->Index);
-   }
-
-   /* 7 */
-   if (ctx->VertexProgram._Enabled
-       && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
-      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]);
-   }
-
-   /* 8..15 */
-   for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) {
-      if (ctx->VertexProgram._Enabled
-          && arrayObj->VertexAttrib[i].Enabled) {
-         min = update_min(min, &arrayObj->VertexAttrib[i]);
-      }
-      else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits
-               && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
-         min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]);
-      }
-   }
-
-   /* 16..31 */
-   if (ctx->VertexProgram._Current) {
-      for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) {
-         if (arrayObj->VertexAttrib[i].Enabled) {
-            min = update_min(min, &arrayObj->VertexAttrib[i]);
-         }
-      }
-   }
-
-   if (arrayObj->EdgeFlag.Enabled) {
-      min = update_min(min, &arrayObj->EdgeFlag);
-   }
-
-   /* _MaxElement is one past the last legal array element */
-   arrayObj->_MaxElement = min;
-}
-
-
-/**
- * Update the following fields:
- *   ctx->VertexProgram._Enabled
- *   ctx->FragmentProgram._Enabled
- *   ctx->ATIFragmentShader._Enabled
- * This needs to be done before texture state validation.
- */
-static void
-update_program_enables(struct gl_context *ctx)
-{
-   /* These _Enabled flags indicate if the program is enabled AND valid. */
-   ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled
-      && ctx->VertexProgram.Current->Base.Instructions;
-   ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled
-      && ctx->FragmentProgram.Current->Base.Instructions;
-   ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled
-      && ctx->ATIFragmentShader.Current->Instructions[0];
-}
-
-
-/**
- * Update vertex/fragment program state.  In particular, update these fields:
- *   ctx->VertexProgram._Current
- *   ctx->VertexProgram._TnlProgram,
- * These point to the highest priority enabled vertex/fragment program or are
- * NULL if fixed-function processing is to be done.
- *
- * This function needs to be called after texture state validation in case
- * we're generating a fragment program from fixed-function texture state.
- *
- * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex
- * or fragment program is being used.
- */
-static GLbitfield
-update_program(struct gl_context *ctx)
-{
-   const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram;
-   const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram;
-   const struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram;
-   const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
-   const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
-   const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current;
-   GLbitfield new_state = 0x0;
-
-   /*
-    * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current
-    * pointers to the programs that should be used for rendering.  If either
-    * is NULL, use fixed-function code paths.
-    *
-    * These programs may come from several sources.  The priority is as
-    * follows:
-    *   1. OpenGL 2.0/ARB vertex/fragment shaders
-    *   2. ARB/NV vertex/fragment programs
-    *   3. Programs derived from fixed-function state.
-    *
-    * Note: it's possible for a vertex shader to get used with a fragment
-    * program (and vice versa) here, but in practice that shouldn't ever
-    * come up, or matter.
-    */
-
-   if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) {
-      /* Use shader programs */
-      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
-                               fsProg->FragmentProgram);
-   }
-   else if (ctx->FragmentProgram._Enabled) {
-      /* use user-defined vertex program */
-      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
-                               ctx->FragmentProgram.Current);
-   }
-   else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
-      /* Use fragment program generated from fixed-function state.
-       */
-      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
-                               _mesa_get_fixed_func_fragment_program(ctx));
-      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
-                               ctx->FragmentProgram._Current);
-   }
-   else {
-      /* no fragment program */
-      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
-   }
-
-   if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) {
-      /* Use shader programs */
-      _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current,
-                               gsProg->GeometryProgram);
-   } else {
-      /* no fragment program */
-      _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL);
-   }
-
-   /* Examine vertex program after fragment program as
-    * _mesa_get_fixed_func_vertex_program() needs to know active
-    * fragprog inputs.
-    */
-   if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) {
-      /* Use shader programs */
-      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
-                            vsProg->VertexProgram);
-   }
-   else if (ctx->VertexProgram._Enabled) {
-      /* use user-defined vertex program */
-      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
-                               ctx->VertexProgram.Current);
-   }
-   else if (ctx->VertexProgram._MaintainTnlProgram) {
-      /* Use vertex program generated from fixed-function state.
-       */
-      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
-                               _mesa_get_fixed_func_vertex_program(ctx));
-      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,
-                               ctx->VertexProgram._Current);
-   }
-   else {
-      /* no vertex program */
-      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
-   }
-
-   /* Let the driver know what's happening:
-    */
-   if (ctx->FragmentProgram._Current != prevFP) {
-      new_state |= _NEW_PROGRAM;
-      if (ctx->Driver.BindProgram) {
-         ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
-                          (struct gl_program *) ctx->FragmentProgram._Current);
-      }
-   }
-
-   if (ctx->GeometryProgram._Current != prevGP) {
-      new_state |= _NEW_PROGRAM;
-      if (ctx->Driver.BindProgram) {
-         ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM,
-                            (struct gl_program *) ctx->GeometryProgram._Current);
-      }
-   }
-
-   if (ctx->VertexProgram._Current != prevVP) {
-      new_state |= _NEW_PROGRAM;
-      if (ctx->Driver.BindProgram) {
-         ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
-                            (struct gl_program *) ctx->VertexProgram._Current);
-      }
-   }
-
-   return new_state;
-}
-
-
-/**
- * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0.
- */
-static GLbitfield
-update_program_constants(struct gl_context *ctx)
-{
-   GLbitfield new_state = 0x0;
-
-   if (ctx->FragmentProgram._Current) {
-      const struct gl_program_parameter_list *params =
-         ctx->FragmentProgram._Current->Base.Parameters;
-      if (params && params->StateFlags & ctx->NewState) {
-         new_state |= _NEW_PROGRAM_CONSTANTS;
-      }
-   }
-
-   if (ctx->GeometryProgram._Current) {
-      const struct gl_program_parameter_list *params =
-         ctx->GeometryProgram._Current->Base.Parameters;
-      /*FIXME: StateFlags is always 0 because we have unnamed constant
-       *       not state changes */
-      if (params /*&& params->StateFlags & ctx->NewState*/) {
-         new_state |= _NEW_PROGRAM_CONSTANTS;
-      }
-   }
-
-   if (ctx->VertexProgram._Current) {
-      const struct gl_program_parameter_list *params =
-         ctx->VertexProgram._Current->Base.Parameters;
-      if (params && params->StateFlags & ctx->NewState) {
-         new_state |= _NEW_PROGRAM_CONSTANTS;
-      }
-   }
-
-   return new_state;
-}
-
-
-
-
-static void
-update_viewport_matrix(struct gl_context *ctx)
-{
-   const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF;
-
-   ASSERT(depthMax > 0);
-
-   /* Compute scale and bias values. This is really driver-specific
-    * and should be maintained elsewhere if at all.
-    * NOTE: RasterPos uses this.
-    */
-   _math_matrix_viewport(&ctx->Viewport._WindowMap,
-                         ctx->Viewport.X, ctx->Viewport.Y,
-                         ctx->Viewport.Width, ctx->Viewport.Height,
-                         ctx->Viewport.Near, ctx->Viewport.Far,
-                         depthMax);
-}
-
-
-/**
- * Update derived multisample state.
- */
-static void
-update_multisample(struct gl_context *ctx)
-{
-   ctx->Multisample._Enabled = GL_FALSE;
-   if (ctx->Multisample.Enabled &&
-       ctx->DrawBuffer &&
-       ctx->DrawBuffer->Visual.sampleBuffers)
-      ctx->Multisample._Enabled = GL_TRUE;
-}
-
-
-/**
- * Update derived color/blend/logicop state.
- */
-static void
-update_color(struct gl_context *ctx)
-{
-   /* This is needed to support 1.1's RGB logic ops AND
-    * 1.0's blending logicops.
-    */
-   ctx->Color._LogicOpEnabled = RGBA_LOGICOP_ENABLED(ctx);
-}
-
-
-/*
- * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET
- * in ctx->_TriangleCaps if needed.
- */
-static void
-update_polygon(struct gl_context *ctx)
-{
-   ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);
-
-   if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
-      ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
-
-   if (   ctx->Polygon.OffsetPoint
-       || ctx->Polygon.OffsetLine
-       || ctx->Polygon.OffsetFill)
-      ctx->_TriangleCaps |= DD_TRI_OFFSET;
-}
-
-
-/**
- * Update the ctx->_TriangleCaps bitfield.
- * XXX that bitfield should really go away someday!
- * This function must be called after other update_*() functions since
- * there are dependencies on some other derived values.
- */
-#if 0
-static void
-update_tricaps(struct gl_context *ctx, GLbitfield new_state)
-{
-   ctx->_TriangleCaps = 0;
-
-   /*
-    * Points
-    */
-   if (1/*new_state & _NEW_POINT*/) {
-      if (ctx->Point.SmoothFlag)
-         ctx->_TriangleCaps |= DD_POINT_SMOOTH;
-      if (ctx->Point._Attenuated)
-         ctx->_TriangleCaps |= DD_POINT_ATTEN;
-   }
-
-   /*
-    * Lines
-    */
-   if (1/*new_state & _NEW_LINE*/) {
-      if (ctx->Line.SmoothFlag)
-         ctx->_TriangleCaps |= DD_LINE_SMOOTH;
-      if (ctx->Line.StippleFlag)
-         ctx->_TriangleCaps |= DD_LINE_STIPPLE;
-   }
-
-   /*
-    * Polygons
-    */
-   if (1/*new_state & _NEW_POLYGON*/) {
-      if (ctx->Polygon.SmoothFlag)
-         ctx->_TriangleCaps |= DD_TRI_SMOOTH;
-      if (ctx->Polygon.StippleFlag)
-         ctx->_TriangleCaps |= DD_TRI_STIPPLE;
-      if (ctx->Polygon.FrontMode != GL_FILL
-          || ctx->Polygon.BackMode != GL_FILL)
-         ctx->_TriangleCaps |= DD_TRI_UNFILLED;
-      if (ctx->Polygon.CullFlag
-          && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
-         ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
-      if (ctx->Polygon.OffsetPoint ||
-          ctx->Polygon.OffsetLine ||
-          ctx->Polygon.OffsetFill)
-         ctx->_TriangleCaps |= DD_TRI_OFFSET;
-   }
-
-   /*
-    * Lighting and shading
-    */
-   if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
-      ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
-   if (ctx->Light.ShadeModel == GL_FLAT)
-      ctx->_TriangleCaps |= DD_FLATSHADE;
-   if (NEED_SECONDARY_COLOR(ctx))
-      ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
-
-   /*
-    * Stencil
-    */
-   if (ctx->Stencil._TestTwoSide)
-      ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
-}
-#endif
-
-
-/**
- * Compute derived GL state.
- * If __struct gl_contextRec::NewState is non-zero then this function \b must
- * be called before rendering anything.
- *
- * Calls dd_function_table::UpdateState to perform any internal state
- * management necessary.
- * 
- * \sa _mesa_update_modelview_project(), _mesa_update_texture(),
- * _mesa_update_buffer_bounds(),
- * _mesa_update_lighting() and _mesa_update_tnl_spaces().
- */
-void
-_mesa_update_state_locked( struct gl_context *ctx )
-{
-   GLbitfield new_state = ctx->NewState;
-   GLbitfield prog_flags = _NEW_PROGRAM;
-   GLbitfield new_prog_state = 0x0;
-
-   if (new_state == _NEW_CURRENT_ATTRIB) 
-      goto out;
-
-   if (MESA_VERBOSE & VERBOSE_STATE)
-      _mesa_print_state("_mesa_update_state", new_state);
-
-   /* Determine which state flags effect vertex/fragment program state */
-   if (ctx->FragmentProgram._MaintainTexEnvProgram) {
-      prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG |
-		     _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE |
-		     _NEW_PROGRAM);
-   }
-   if (ctx->VertexProgram._MaintainTnlProgram) {
-      prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
-                     _NEW_TRANSFORM | _NEW_POINT |
-                     _NEW_FOG | _NEW_LIGHT |
-                     _MESA_NEW_NEED_EYE_COORDS);
-   }
-
-   /*
-    * Now update derived state info
-    */
-
-   if (new_state & prog_flags)
-      update_program_enables( ctx );
-
-   if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
-      _mesa_update_modelview_project( ctx, new_state );
-
-   if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX))
-      _mesa_update_texture( ctx, new_state );
-
-   if (new_state & _NEW_BUFFERS)
-      _mesa_update_framebuffer(ctx);
-
-   if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT))
-      _mesa_update_draw_buffer_bounds( ctx );
-
-   if (new_state & _NEW_POLYGON)
-      update_polygon( ctx );
-
-   if (new_state & _NEW_LIGHT)
-      _mesa_update_lighting( ctx );
-
-   if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
-      _mesa_update_stencil( ctx );
-
-   if (new_state & _MESA_NEW_TRANSFER_STATE)
-      _mesa_update_pixel( ctx, new_state );
-
-   if (new_state & _DD_NEW_SEPARATE_SPECULAR)
-      update_separate_specular( ctx );
-
-   if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
-      update_viewport_matrix(ctx);
-
-   if (new_state & _NEW_MULTISAMPLE)
-      update_multisample( ctx );
-
-   if (new_state & _NEW_COLOR)
-      update_color( ctx );
-
-#if 0
-   if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT
-                    | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR))
-      update_tricaps( ctx, new_state );
-#endif
-
-   /* ctx->_NeedEyeCoords is now up to date.
-    *
-    * If the truth value of this variable has changed, update for the
-    * new lighting space and recompute the positions of lights and the
-    * normal transform.
-    *
-    * If the lighting space hasn't changed, may still need to recompute
-    * light positions & normal transforms for other reasons.
-    */
-   if (new_state & _MESA_NEW_NEED_EYE_COORDS) 
-      _mesa_update_tnl_spaces( ctx, new_state );
-
-   if (new_state & prog_flags) {
-      /* When we generate programs from fixed-function vertex/fragment state
-       * this call may generate/bind a new program.  If so, we need to
-       * propogate the _NEW_PROGRAM flag to the driver.
-       */
-      new_prog_state |= update_program( ctx );
-   }
-
-   if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
-      update_arrays( ctx );
-
- out:
-   new_prog_state |= update_program_constants(ctx);
-
-   /*
-    * Give the driver a chance to act upon the new_state flags.
-    * The driver might plug in different span functions, for example.
-    * Also, this is where the driver can invalidate the state of any
-    * active modules (such as swrast_setup, swrast, tnl, etc).
-    *
-    * Set ctx->NewState to zero to avoid recursion if
-    * Driver.UpdateState() has to call FLUSH_VERTICES().  (fixed?)
-    */
-   new_state = ctx->NewState | new_prog_state;
-   ctx->NewState = 0;
-   ctx->Driver.UpdateState(ctx, new_state);
-   ctx->Array.NewState = 0;
-   if (!ctx->Array.RebindArrays)
-      ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;
-}
-
-
-/* This is the usual entrypoint for state updates:
- */
-void
-_mesa_update_state( struct gl_context *ctx )
-{
-   _mesa_lock_context_textures(ctx);
-   _mesa_update_state_locked(ctx);
-   _mesa_unlock_context_textures(ctx);
-}
-
-
-
-
-/**
- * Want to figure out which fragment program inputs are actually
- * constant/current values from ctx->Current.  These should be
- * referenced as a tracked state variable rather than a fragment
- * program input, to save the overhead of putting a constant value in
- * every submitted vertex, transferring it to hardware, interpolating
- * it across the triangle, etc...
- *
- * When there is a VP bound, just use vp->outputs.  But when we're
- * generating vp from fixed function state, basically want to
- * calculate:
- *
- * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) | 
- *                 potential_vp_outputs )
- *
- * Where potential_vp_outputs is calculated by looking at enabled
- * texgen, etc.
- * 
- * The generated fragment program should then only declare inputs that
- * may vary or otherwise differ from the ctx->Current values.
- * Otherwise, the fp should track them as state values instead.
- */
-void
-_mesa_set_varying_vp_inputs( struct gl_context *ctx,
-                             GLbitfield varying_inputs )
-{
-   if (ctx->varying_vp_inputs != varying_inputs) {
-      ctx->varying_vp_inputs = varying_inputs;
-      ctx->NewState |= _NEW_ARRAY;
-      /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/
-   }
-}
-
-
-/**
- * Used by drivers to tell core Mesa that the driver is going to
- * install/ use its own vertex program.  In particular, this will
- * prevent generated fragment programs from using state vars instead
- * of ordinary varyings/inputs.
- */
-void
-_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag)
-{
-   if (ctx->VertexProgram._Overriden != flag) {
-      ctx->VertexProgram._Overriden = flag;
-
-      /* Set one of the bits which will trigger fragment program
-       * regeneration:
-       */
-      ctx->NewState |= _NEW_PROGRAM;
-   }
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.3

+ *

+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+/**

+ * \file state.c

+ * State management.

+ * 

+ * This file manages recalculation of derived values in struct gl_context.

+ */

+

+

+#include "glheader.h"

+#include "mtypes.h"

+#include "context.h"

+#include "debug.h"

+#include "macros.h"

+#include "ffvertex_prog.h"

+#include "framebuffer.h"

+#include "light.h"

+#include "matrix.h"

+#include "pixel.h"

+#include "program/program.h"

+#include "program/prog_parameter.h"

+#include "state.h"

+#include "stencil.h"

+#include "texenvprogram.h"

+#include "texobj.h"

+#include "texstate.h"

+

+

+static void

+update_separate_specular(struct gl_context *ctx)

+{

+   if (NEED_SECONDARY_COLOR(ctx))

+      ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;

+   else

+      ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;

+}

+

+

+/**

+ * Compute the index of the last array element that can be safely accessed

+ * in a vertex array.  We can really only do this when the array lives in

+ * a VBO.

+ * The array->_MaxElement field will be updated.

+ * Later in glDrawArrays/Elements/etc we can do some bounds checking.

+ */

+static void

+compute_max_element(struct gl_client_array *array)

+{

+   assert(array->Enabled);

+   if (array->BufferObj->Name) {

+      GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr;

+      GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size;

+

+      if (offset < obj_size) {

+	 array->_MaxElement = (obj_size - offset +

+			       array->StrideB -

+			       array->_ElementSize) / array->StrideB;

+      } else {

+	 array->_MaxElement = 0;

+      }

+   }

+   else {

+      /* user-space array, no idea how big it is */

+      array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */

+   }

+}

+

+

+/**

+ * Helper for update_arrays().

+ * \return  min(current min, array->_MaxElement).

+ */

+static GLuint

+update_min(GLuint min, struct gl_client_array *array)

+{

+   compute_max_element(array);

+   return MIN2(min, array->_MaxElement);

+}

+

+

+/**

+ * Update ctx->Array._MaxElement (the max legal index into all enabled arrays).

+ * Need to do this upon new array state or new buffer object state.

+ */

+static void

+update_arrays( struct gl_context *ctx )

+{

+   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;

+   GLuint i, min = ~0;

+

+   /* find min of _MaxElement values for all enabled arrays */

+

+   /* 0 */

+   if (ctx->VertexProgram._Current

+       && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]);

+   }

+   else if (arrayObj->Vertex.Enabled) {

+      min = update_min(min, &arrayObj->Vertex);

+   }

+

+   /* 1 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]);

+   }

+   /* no conventional vertex weight array */

+

+   /* 2 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]);

+   }

+   else if (arrayObj->Normal.Enabled) {

+      min = update_min(min, &arrayObj->Normal);

+   }

+

+   /* 3 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]);

+   }

+   else if (arrayObj->Color.Enabled) {

+      min = update_min(min, &arrayObj->Color);

+   }

+

+   /* 4 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]);

+   }

+   else if (arrayObj->SecondaryColor.Enabled) {

+      min = update_min(min, &arrayObj->SecondaryColor);

+   }

+

+   /* 5 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]);

+   }

+   else if (arrayObj->FogCoord.Enabled) {

+      min = update_min(min, &arrayObj->FogCoord);

+   }

+

+   /* 6 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]);

+   }

+   else if (arrayObj->Index.Enabled) {

+      min = update_min(min, &arrayObj->Index);

+   }

+

+   /* 7 */

+   if (ctx->VertexProgram._Enabled

+       && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {

+      min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]);

+   }

+

+   /* 8..15 */

+   for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) {

+      if (ctx->VertexProgram._Enabled

+          && arrayObj->VertexAttrib[i].Enabled) {

+         min = update_min(min, &arrayObj->VertexAttrib[i]);

+      }

+      else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits

+               && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {

+         min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]);

+      }

+   }

+

+   /* 16..31 */

+   if (ctx->VertexProgram._Current) {

+      for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) {

+         if (arrayObj->VertexAttrib[i].Enabled) {

+            min = update_min(min, &arrayObj->VertexAttrib[i]);

+         }

+      }

+   }

+

+   if (arrayObj->EdgeFlag.Enabled) {

+      min = update_min(min, &arrayObj->EdgeFlag);

+   }

+

+   /* _MaxElement is one past the last legal array element */

+   arrayObj->_MaxElement = min;

+}

+

+

+/**

+ * Update the following fields:

+ *   ctx->VertexProgram._Enabled

+ *   ctx->FragmentProgram._Enabled

+ *   ctx->ATIFragmentShader._Enabled

+ * This needs to be done before texture state validation.

+ */

+static void

+update_program_enables(struct gl_context *ctx)

+{

+   /* These _Enabled flags indicate if the program is enabled AND valid. */

+   ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled

+      && ctx->VertexProgram.Current->Base.Instructions;

+   ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled

+      && ctx->FragmentProgram.Current->Base.Instructions;

+   ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled

+      && ctx->ATIFragmentShader.Current->Instructions[0];

+}

+

+

+/**

+ * Update vertex/fragment program state.  In particular, update these fields:

+ *   ctx->VertexProgram._Current

+ *   ctx->VertexProgram._TnlProgram,

+ * These point to the highest priority enabled vertex/fragment program or are

+ * NULL if fixed-function processing is to be done.

+ *

+ * This function needs to be called after texture state validation in case

+ * we're generating a fragment program from fixed-function texture state.

+ *

+ * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex

+ * or fragment program is being used.

+ */

+static GLbitfield

+update_program(struct gl_context *ctx)

+{

+   const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram;

+   const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram;

+   const struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram;

+   const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;

+   const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;

+   const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current;

+   GLbitfield new_state = 0x0;

+

+   /*

+    * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current

+    * pointers to the programs that should be used for rendering.  If either

+    * is NULL, use fixed-function code paths.

+    *

+    * These programs may come from several sources.  The priority is as

+    * follows:

+    *   1. OpenGL 2.0/ARB vertex/fragment shaders

+    *   2. ARB/NV vertex/fragment programs

+    *   3. Programs derived from fixed-function state.

+    *

+    * Note: it's possible for a vertex shader to get used with a fragment

+    * program (and vice versa) here, but in practice that shouldn't ever

+    * come up, or matter.

+    */

+

+   if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) {

+      /* Use shader programs */

+      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,

+                               fsProg->FragmentProgram);

+   }

+   else if (ctx->FragmentProgram._Enabled) {

+      /* use user-defined vertex program */

+      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,

+                               ctx->FragmentProgram.Current);

+   }

+   else if (ctx->FragmentProgram._MaintainTexEnvProgram) {

+      /* Use fragment program generated from fixed-function state.

+       */

+      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,

+                               _mesa_get_fixed_func_fragment_program(ctx));

+      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,

+                               ctx->FragmentProgram._Current);

+   }

+   else {

+      /* no fragment program */

+      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);

+   }

+

+   if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) {

+      /* Use shader programs */

+      _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current,

+                               gsProg->GeometryProgram);

+   } else {

+      /* no fragment program */

+      _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL);

+   }

+

+   /* Examine vertex program after fragment program as

+    * _mesa_get_fixed_func_vertex_program() needs to know active

+    * fragprog inputs.

+    */

+   if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) {

+      /* Use shader programs */

+      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,

+                            vsProg->VertexProgram);

+   }

+   else if (ctx->VertexProgram._Enabled) {

+      /* use user-defined vertex program */

+      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,

+                               ctx->VertexProgram.Current);

+   }

+   else if (ctx->VertexProgram._MaintainTnlProgram) {

+      /* Use vertex program generated from fixed-function state.

+       */

+      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,

+                               _mesa_get_fixed_func_vertex_program(ctx));

+      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,

+                               ctx->VertexProgram._Current);

+   }

+   else {

+      /* no vertex program */

+      _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);

+   }

+

+   /* Let the driver know what's happening:

+    */

+   if (ctx->FragmentProgram._Current != prevFP) {

+      new_state |= _NEW_PROGRAM;

+      if (ctx->Driver.BindProgram) {

+         ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,

+                          (struct gl_program *) ctx->FragmentProgram._Current);

+      }

+   }

+

+   if (ctx->GeometryProgram._Current != prevGP) {

+      new_state |= _NEW_PROGRAM;

+      if (ctx->Driver.BindProgram) {

+         ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM,

+                            (struct gl_program *) ctx->GeometryProgram._Current);

+      }

+   }

+

+   if (ctx->VertexProgram._Current != prevVP) {

+      new_state |= _NEW_PROGRAM;

+      if (ctx->Driver.BindProgram) {

+         ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,

+                            (struct gl_program *) ctx->VertexProgram._Current);

+      }

+   }

+

+   return new_state;

+}

+

+

+/**

+ * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0.

+ */

+static GLbitfield

+update_program_constants(struct gl_context *ctx)

+{

+   GLbitfield new_state = 0x0;

+

+   if (ctx->FragmentProgram._Current) {

+      const struct gl_program_parameter_list *params =

+         ctx->FragmentProgram._Current->Base.Parameters;

+      if (params && params->StateFlags & ctx->NewState) {

+         new_state |= _NEW_PROGRAM_CONSTANTS;

+      }

+   }

+

+   if (ctx->GeometryProgram._Current) {

+      const struct gl_program_parameter_list *params =

+         ctx->GeometryProgram._Current->Base.Parameters;

+      /*FIXME: StateFlags is always 0 because we have unnamed constant

+       *       not state changes */

+      if (params /*&& params->StateFlags & ctx->NewState*/) {

+         new_state |= _NEW_PROGRAM_CONSTANTS;

+      }

+   }

+

+   if (ctx->VertexProgram._Current) {

+      const struct gl_program_parameter_list *params =

+         ctx->VertexProgram._Current->Base.Parameters;

+      if (params && params->StateFlags & ctx->NewState) {

+         new_state |= _NEW_PROGRAM_CONSTANTS;

+      }

+   }

+

+   return new_state;

+}

+

+

+

+

+static void

+update_viewport_matrix(struct gl_context *ctx)

+{

+   const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF;

+

+   ASSERT(depthMax > 0);

+

+   /* Compute scale and bias values. This is really driver-specific

+    * and should be maintained elsewhere if at all.

+    * NOTE: RasterPos uses this.

+    */

+   _math_matrix_viewport(&ctx->Viewport._WindowMap,

+                         ctx->Viewport.X, ctx->Viewport.Y,

+                         ctx->Viewport.Width, ctx->Viewport.Height,

+                         ctx->Viewport.Near, ctx->Viewport.Far,

+                         depthMax);

+}

+

+

+/**

+ * Update derived multisample state.

+ */

+static void

+update_multisample(struct gl_context *ctx)

+{

+   ctx->Multisample._Enabled = GL_FALSE;

+   if (ctx->Multisample.Enabled &&

+       ctx->DrawBuffer &&

+       ctx->DrawBuffer->Visual.sampleBuffers)

+      ctx->Multisample._Enabled = GL_TRUE;

+}

+

+

+/**

+ * Update derived color/blend/logicop state.

+ */

+static void

+update_color(struct gl_context *ctx)

+{

+   /* This is needed to support 1.1's RGB logic ops AND

+    * 1.0's blending logicops.

+    */

+   ctx->Color._LogicOpEnabled = RGBA_LOGICOP_ENABLED(ctx);

+}

+

+

+/*

+ * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET

+ * in ctx->_TriangleCaps if needed.

+ */

+static void

+update_polygon(struct gl_context *ctx)

+{

+   ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);

+

+   if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)

+      ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;

+

+   if (   ctx->Polygon.OffsetPoint

+       || ctx->Polygon.OffsetLine

+       || ctx->Polygon.OffsetFill)

+      ctx->_TriangleCaps |= DD_TRI_OFFSET;

+}

+

+

+/**

+ * Update the ctx->_TriangleCaps bitfield.

+ * XXX that bitfield should really go away someday!

+ * This function must be called after other update_*() functions since

+ * there are dependencies on some other derived values.

+ */

+#if 0

+static void

+update_tricaps(struct gl_context *ctx, GLbitfield new_state)

+{

+   ctx->_TriangleCaps = 0;

+

+   /*

+    * Points

+    */

+   if (1/*new_state & _NEW_POINT*/) {

+      if (ctx->Point.SmoothFlag)

+         ctx->_TriangleCaps |= DD_POINT_SMOOTH;

+      if (ctx->Point._Attenuated)

+         ctx->_TriangleCaps |= DD_POINT_ATTEN;

+   }

+

+   /*

+    * Lines

+    */

+   if (1/*new_state & _NEW_LINE*/) {

+      if (ctx->Line.SmoothFlag)

+         ctx->_TriangleCaps |= DD_LINE_SMOOTH;

+      if (ctx->Line.StippleFlag)

+         ctx->_TriangleCaps |= DD_LINE_STIPPLE;

+   }

+

+   /*

+    * Polygons

+    */

+   if (1/*new_state & _NEW_POLYGON*/) {

+      if (ctx->Polygon.SmoothFlag)

+         ctx->_TriangleCaps |= DD_TRI_SMOOTH;

+      if (ctx->Polygon.StippleFlag)

+         ctx->_TriangleCaps |= DD_TRI_STIPPLE;

+      if (ctx->Polygon.FrontMode != GL_FILL

+          || ctx->Polygon.BackMode != GL_FILL)

+         ctx->_TriangleCaps |= DD_TRI_UNFILLED;

+      if (ctx->Polygon.CullFlag

+          && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)

+         ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;

+      if (ctx->Polygon.OffsetPoint ||

+          ctx->Polygon.OffsetLine ||

+          ctx->Polygon.OffsetFill)

+         ctx->_TriangleCaps |= DD_TRI_OFFSET;

+   }

+

+   /*

+    * Lighting and shading

+    */

+   if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)

+      ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;

+   if (ctx->Light.ShadeModel == GL_FLAT)

+      ctx->_TriangleCaps |= DD_FLATSHADE;

+   if (NEED_SECONDARY_COLOR(ctx))

+      ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;

+

+   /*

+    * Stencil

+    */

+   if (ctx->Stencil._TestTwoSide)

+      ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;

+}

+#endif

+

+

+/**

+ * Compute derived GL state.

+ * If __struct gl_contextRec::NewState is non-zero then this function \b must

+ * be called before rendering anything.

+ *

+ * Calls dd_function_table::UpdateState to perform any internal state

+ * management necessary.

+ * 

+ * \sa _mesa_update_modelview_project(), _mesa_update_texture(),

+ * _mesa_update_buffer_bounds(),

+ * _mesa_update_lighting() and _mesa_update_tnl_spaces().

+ */

+void

+_mesa_update_state_locked( struct gl_context *ctx )

+{

+   GLbitfield new_state = ctx->NewState;

+   GLbitfield prog_flags = _NEW_PROGRAM;

+   GLbitfield new_prog_state = 0x0;

+

+   if (new_state == _NEW_CURRENT_ATTRIB) 

+      goto out;

+

+   if (MESA_VERBOSE & VERBOSE_STATE)

+      _mesa_print_state("_mesa_update_state", new_state);

+

+   /* Determine which state flags effect vertex/fragment program state */

+   if (ctx->FragmentProgram._MaintainTexEnvProgram) {

+      prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG |

+		     _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE |

+		     _NEW_PROGRAM);

+   }

+   if (ctx->VertexProgram._MaintainTnlProgram) {

+      prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |

+                     _NEW_TRANSFORM | _NEW_POINT |

+                     _NEW_FOG | _NEW_LIGHT |

+                     _MESA_NEW_NEED_EYE_COORDS);

+   }

+

+   /*

+    * Now update derived state info

+    */

+

+   if (new_state & prog_flags)

+      update_program_enables( ctx );

+

+   if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))

+      _mesa_update_modelview_project( ctx, new_state );

+

+   if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX))

+      _mesa_update_texture( ctx, new_state );

+

+   if (new_state & _NEW_BUFFERS)

+      _mesa_update_framebuffer(ctx);

+

+   if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT))

+      _mesa_update_draw_buffer_bounds( ctx );

+

+   if (new_state & _NEW_POLYGON)

+      update_polygon( ctx );

+

+   if (new_state & _NEW_LIGHT)

+      _mesa_update_lighting( ctx );

+

+   if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))

+      _mesa_update_stencil( ctx );

+

+   if (new_state & _MESA_NEW_TRANSFER_STATE)

+      _mesa_update_pixel( ctx, new_state );

+

+   if (new_state & _DD_NEW_SEPARATE_SPECULAR)

+      update_separate_specular( ctx );

+

+   if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))

+      update_viewport_matrix(ctx);

+

+   if (new_state & _NEW_MULTISAMPLE)

+      update_multisample( ctx );

+

+   if (new_state & _NEW_COLOR)

+      update_color( ctx );

+

+#if 0

+   if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT

+                    | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR))

+      update_tricaps( ctx, new_state );

+#endif

+

+   /* ctx->_NeedEyeCoords is now up to date.

+    *

+    * If the truth value of this variable has changed, update for the

+    * new lighting space and recompute the positions of lights and the

+    * normal transform.

+    *

+    * If the lighting space hasn't changed, may still need to recompute

+    * light positions & normal transforms for other reasons.

+    */

+   if (new_state & _MESA_NEW_NEED_EYE_COORDS) 

+      _mesa_update_tnl_spaces( ctx, new_state );

+

+   if (new_state & prog_flags) {

+      /* When we generate programs from fixed-function vertex/fragment state

+       * this call may generate/bind a new program.  If so, we need to

+       * propogate the _NEW_PROGRAM flag to the driver.

+       */

+      new_prog_state |= update_program( ctx );

+   }

+

+   if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))

+      update_arrays( ctx );

+

+ out:

+   new_prog_state |= update_program_constants(ctx);

+

+   /*

+    * Give the driver a chance to act upon the new_state flags.

+    * The driver might plug in different span functions, for example.

+    * Also, this is where the driver can invalidate the state of any

+    * active modules (such as swrast_setup, swrast, tnl, etc).

+    *

+    * Set ctx->NewState to zero to avoid recursion if

+    * Driver.UpdateState() has to call FLUSH_VERTICES().  (fixed?)

+    */

+   new_state = ctx->NewState | new_prog_state;

+   ctx->NewState = 0;

+   ctx->Driver.UpdateState(ctx, new_state);

+   ctx->Array.NewState = 0;

+   if (!ctx->Array.RebindArrays)

+      ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;

+}

+

+

+/* This is the usual entrypoint for state updates:

+ */

+void

+_mesa_update_state( struct gl_context *ctx )

+{

+   _mesa_lock_context_textures(ctx);

+   _mesa_update_state_locked(ctx);

+   _mesa_unlock_context_textures(ctx);

+}

+

+

+

+

+/**

+ * Want to figure out which fragment program inputs are actually

+ * constant/current values from ctx->Current.  These should be

+ * referenced as a tracked state variable rather than a fragment

+ * program input, to save the overhead of putting a constant value in

+ * every submitted vertex, transferring it to hardware, interpolating

+ * it across the triangle, etc...

+ *

+ * When there is a VP bound, just use vp->outputs.  But when we're

+ * generating vp from fixed function state, basically want to

+ * calculate:

+ *

+ * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) | 

+ *                 potential_vp_outputs )

+ *

+ * Where potential_vp_outputs is calculated by looking at enabled

+ * texgen, etc.

+ * 

+ * The generated fragment program should then only declare inputs that

+ * may vary or otherwise differ from the ctx->Current values.

+ * Otherwise, the fp should track them as state values instead.

+ */

+void

+_mesa_set_varying_vp_inputs( struct gl_context *ctx,

+                             GLbitfield varying_inputs )

+{

+   if (ctx->varying_vp_inputs != varying_inputs) {

+      ctx->varying_vp_inputs = varying_inputs;

+      ctx->NewState |= _NEW_ARRAY;

+      /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/

+   }

+}

+

+

+/**

+ * Used by drivers to tell core Mesa that the driver is going to

+ * install/ use its own vertex program.  In particular, this will

+ * prevent generated fragment programs from using state vars instead

+ * of ordinary varyings/inputs.

+ */

+void

+_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag)

+{

+   if (ctx->VertexProgram._Overriden != flag) {

+      ctx->VertexProgram._Overriden = flag;

+

+      /* Set one of the bits which will trigger fragment program

+       * regeneration:

+       */

+      ctx->NewState |= _NEW_PROGRAM;

+   }

+}

diff --git a/mesalib/src/mesa/main/stencil.c b/mesalib/src/mesa/main/stencil.c
index d898bf1d7..b49ddbdbb 100644
--- a/mesalib/src/mesa/main/stencil.c
+++ b/mesalib/src/mesa/main/stencil.c
@@ -1,614 +1,614 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file stencil.c
- * Stencil operations.
- *
- * Note: There's some conflict between GL_EXT_stencil_two_side and
- * OpenGL 2.0's two-sided stencil feature.
- *
- * With GL_EXT_stencil_two_side, calling glStencilOp/Func/Mask() only the
- * front OR back face state (as set by glActiveStencilFaceEXT) is set.
- *
- * But with OpenGL 2.0, calling glStencilOp/Func/Mask() sets BOTH the
- * front AND back state.
- *
- * Also, note that GL_ATI_separate_stencil is different as well:
- * glStencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, ...)  vs.
- * glStencilFuncSeparate(GLenum face, GLenum func, ...).
- *
- * This problem is solved by keeping three sets of stencil state:
- *  state[0] = GL_FRONT state.
- *  state[1] = OpenGL 2.0 / GL_ATI_separate_stencil GL_BACK state.
- *  state[2] = GL_EXT_stencil_two_side GL_BACK state.
- */
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "context.h"
-#include "macros.h"
-#include "stencil.h"
-#include "mtypes.h"
-
-
-static GLboolean
-validate_stencil_op(struct gl_context *ctx, GLenum op)
-{
-   switch (op) {
-   case GL_KEEP:
-   case GL_ZERO:
-   case GL_REPLACE:
-   case GL_INCR:
-   case GL_DECR:
-   case GL_INVERT:
-      return GL_TRUE;
-   case GL_INCR_WRAP_EXT:
-   case GL_DECR_WRAP_EXT:
-      if (ctx->Extensions.EXT_stencil_wrap) {
-         return GL_TRUE;
-      }
-      /* FALL-THROUGH */
-   default:
-      return GL_FALSE;
-   }
-}
-
-
-static GLboolean
-validate_stencil_func(struct gl_context *ctx, GLenum func)
-{
-   switch (func) {
-   case GL_NEVER:
-   case GL_LESS:
-   case GL_LEQUAL:
-   case GL_GREATER:
-   case GL_GEQUAL:
-   case GL_EQUAL:
-   case GL_NOTEQUAL:
-   case GL_ALWAYS:
-      return GL_TRUE;
-   default:
-      return GL_FALSE;
-   }
-}
-
-
-/**
- * Set the clear value for the stencil buffer.
- *
- * \param s clear value.
- *
- * \sa glClearStencil().
- *
- * Updates gl_stencil_attrib::Clear. On change
- * flushes the vertices and notifies the driver via
- * the dd_function_table::ClearStencil callback.
- */
-void GLAPIENTRY
-_mesa_ClearStencil( GLint s )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->Stencil.Clear == (GLuint) s)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_STENCIL);
-   ctx->Stencil.Clear = (GLuint) s;
-
-   if (ctx->Driver.ClearStencil) {
-      ctx->Driver.ClearStencil( ctx, s );
-   }
-}
-
-
-/**
- * Set the function and reference value for stencil testing.
- *
- * \param frontfunc front test function.
- * \param backfunc back test function.
- * \param ref front and back reference value.
- * \param mask front and back bitmask.
- *
- * \sa glStencilFunc().
- *
- * Verifies the parameters and updates the respective values in
- * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
- * driver via the dd_function_table::StencilFunc callback.
- */
-void GLAPIENTRY
-_mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilFuncSeparateATI()\n");
-
-   if (!validate_stencil_func(ctx, frontfunc)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glStencilFuncSeparateATI(frontfunc)");
-      return;
-   }
-   if (!validate_stencil_func(ctx, backfunc)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glStencilFuncSeparateATI(backfunc)");
-      return;
-   }
-
-   ref = CLAMP( ref, 0, stencilMax );
-
-   /* set both front and back state */
-   if (ctx->Stencil.Function[0] == frontfunc &&
-       ctx->Stencil.Function[1] == backfunc &&
-       ctx->Stencil.ValueMask[0] == mask &&
-       ctx->Stencil.ValueMask[1] == mask &&
-       ctx->Stencil.Ref[0] == ref &&
-       ctx->Stencil.Ref[1] == ref)
-      return;
-   FLUSH_VERTICES(ctx, _NEW_STENCIL);
-   ctx->Stencil.Function[0]  = frontfunc;
-   ctx->Stencil.Function[1]  = backfunc;
-   ctx->Stencil.Ref[0]       = ctx->Stencil.Ref[1]       = ref;
-   ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
-   if (ctx->Driver.StencilFuncSeparate) {
-      ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
-                                      frontfunc, ref, mask);
-      ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
-                                      backfunc, ref, mask);
-   }
-}
-
-
-/**
- * Set the function and reference value for stencil testing.
- *
- * \param func test function.
- * \param ref reference value.
- * \param mask bitmask.
- *
- * \sa glStencilFunc().
- *
- * Verifies the parameters and updates the respective values in
- * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
- * driver via the dd_function_table::StencilFunc callback.
- */
-void GLAPIENTRY
-_mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
-   const GLint face = ctx->Stencil.ActiveFace;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilFunc()\n");
-
-   if (!validate_stencil_func(ctx, func)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFunc(func)");
-      return;
-   }
-
-   ref = CLAMP( ref, 0, stencilMax );
-
-   if (face != 0) {
-      if (ctx->Stencil.Function[face] == func &&
-          ctx->Stencil.ValueMask[face] == mask &&
-          ctx->Stencil.Ref[face] == ref)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.Function[face] = func;
-      ctx->Stencil.Ref[face] = ref;
-      ctx->Stencil.ValueMask[face] = mask;
-
-      /* Only propagate the change to the driver if EXT_stencil_two_side
-       * is enabled.
-       */
-      if (ctx->Driver.StencilFuncSeparate && ctx->Stencil.TestTwoSide) {
-         ctx->Driver.StencilFuncSeparate(ctx, GL_BACK, func, ref, mask);
-      }
-   }
-   else {
-      /* set both front and back state */
-      if (ctx->Stencil.Function[0] == func &&
-          ctx->Stencil.Function[1] == func &&
-          ctx->Stencil.ValueMask[0] == mask &&
-          ctx->Stencil.ValueMask[1] == mask &&
-          ctx->Stencil.Ref[0] == ref &&
-          ctx->Stencil.Ref[1] == ref)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.Function[0]  = ctx->Stencil.Function[1]  = func;
-      ctx->Stencil.Ref[0]       = ctx->Stencil.Ref[1]       = ref;
-      ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
-      if (ctx->Driver.StencilFuncSeparate) {
-         ctx->Driver.StencilFuncSeparate(ctx,
-					 ((ctx->Stencil.TestTwoSide)
-					  ? GL_FRONT : GL_FRONT_AND_BACK),
-                                         func, ref, mask);
-      }
-   }
-}
-
-
-/**
- * Set the stencil writing mask.
- *
- * \param mask bit-mask to enable/disable writing of individual bits in the
- * stencil planes.
- *
- * \sa glStencilMask().
- *
- * Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and
- * notifies the driver via the dd_function_table::StencilMask callback.
- */
-void GLAPIENTRY
-_mesa_StencilMask( GLuint mask )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLint face = ctx->Stencil.ActiveFace;
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilMask()\n");
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (face != 0) {
-      /* Only modify the EXT_stencil_two_side back-face state.
-       */
-      if (ctx->Stencil.WriteMask[face] == mask)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.WriteMask[face] = mask;
-
-      /* Only propagate the change to the driver if EXT_stencil_two_side
-       * is enabled.
-       */
-      if (ctx->Driver.StencilMaskSeparate && ctx->Stencil.TestTwoSide) {
-         ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, mask);
-      }
-   }
-   else {
-      /* set both front and back state */
-      if (ctx->Stencil.WriteMask[0] == mask &&
-          ctx->Stencil.WriteMask[1] == mask)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.WriteMask[0] = ctx->Stencil.WriteMask[1] = mask;
-      if (ctx->Driver.StencilMaskSeparate) {
-         ctx->Driver.StencilMaskSeparate(ctx,
-					 ((ctx->Stencil.TestTwoSide)
-					  ? GL_FRONT : GL_FRONT_AND_BACK),
-					  mask);
-      }
-   }
-}
-
-
-/**
- * Set the stencil test actions.
- *
- * \param fail action to take when stencil test fails.
- * \param zfail action to take when stencil test passes, but depth test fails.
- * \param zpass action to take when stencil test passes and the depth test
- * passes (or depth testing is not enabled).
- * 
- * \sa glStencilOp().
- * 
- * Verifies the parameters and updates the respective fields in
- * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
- * driver via the dd_function_table::StencilOp callback.
- */
-void GLAPIENTRY
-_mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLint face = ctx->Stencil.ActiveFace;
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilOp()\n");
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (!validate_stencil_op(ctx, fail)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(sfail)");
-      return;
-   }
-   if (!validate_stencil_op(ctx, zfail)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zfail)");
-      return;
-   }
-   if (!validate_stencil_op(ctx, zpass)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zpass)");
-      return;
-   }
-
-   if (face != 0) {
-      /* only set active face state */
-      if (ctx->Stencil.ZFailFunc[face] == zfail &&
-          ctx->Stencil.ZPassFunc[face] == zpass &&
-          ctx->Stencil.FailFunc[face] == fail)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.ZFailFunc[face] = zfail;
-      ctx->Stencil.ZPassFunc[face] = zpass;
-      ctx->Stencil.FailFunc[face] = fail;
-
-      /* Only propagate the change to the driver if EXT_stencil_two_side
-       * is enabled.
-       */
-      if (ctx->Driver.StencilOpSeparate && ctx->Stencil.TestTwoSide) {
-         ctx->Driver.StencilOpSeparate(ctx, GL_BACK, fail, zfail, zpass);
-      }
-   }
-   else {
-      /* set both front and back state */
-      if (ctx->Stencil.ZFailFunc[0] == zfail &&
-          ctx->Stencil.ZFailFunc[1] == zfail &&
-          ctx->Stencil.ZPassFunc[0] == zpass &&
-          ctx->Stencil.ZPassFunc[1] == zpass &&
-          ctx->Stencil.FailFunc[0] == fail &&
-          ctx->Stencil.FailFunc[1] == fail)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.ZFailFunc[0] = ctx->Stencil.ZFailFunc[1] = zfail;
-      ctx->Stencil.ZPassFunc[0] = ctx->Stencil.ZPassFunc[1] = zpass;
-      ctx->Stencil.FailFunc[0]  = ctx->Stencil.FailFunc[1]  = fail;
-      if (ctx->Driver.StencilOpSeparate) {
-         ctx->Driver.StencilOpSeparate(ctx,
-				       ((ctx->Stencil.TestTwoSide)
-					? GL_FRONT : GL_FRONT_AND_BACK),
-                                       fail, zfail, zpass);
-      }
-   }
-}
-
-
-
-#if _HAVE_FULL_GL
-/* GL_EXT_stencil_two_side */
-void GLAPIENTRY
-_mesa_ActiveStencilFaceEXT(GLenum face)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glActiveStencilFaceEXT()\n");
-
-   if (!ctx->Extensions.EXT_stencil_two_side) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveStencilFaceEXT");
-      return;
-   }
-
-   if (face == GL_FRONT || face == GL_BACK) {
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.ActiveFace = (face == GL_FRONT) ? 0 : 2;
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glActiveStencilFaceEXT(face)");
-   }
-}
-#endif
-
-
-
-/**
- * OpenGL 2.0 function.
- * \todo Make StencilOp() call this function.  And eventually remove the
- * ctx->Driver.StencilOp function and use ctx->Driver.StencilOpSeparate
- * instead.
- */
-void GLAPIENTRY
-_mesa_StencilOpSeparate(GLenum face, GLenum sfail, GLenum zfail, GLenum zpass)
-{
-   GLboolean set = GL_FALSE;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilOpSeparate()\n");
-
-   if (!validate_stencil_op(ctx, sfail)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(sfail)");
-      return;
-   }
-   if (!validate_stencil_op(ctx, zfail)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)");
-      return;
-   }
-   if (!validate_stencil_op(ctx, zpass)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)");
-      return;
-   }
-   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(face)");
-      return;
-   }
-
-   if (face != GL_BACK) {
-      /* set front */
-      if (ctx->Stencil.ZFailFunc[0] != zfail ||
-          ctx->Stencil.ZPassFunc[0] != zpass ||
-          ctx->Stencil.FailFunc[0] != sfail){
-         FLUSH_VERTICES(ctx, _NEW_STENCIL);
-         ctx->Stencil.ZFailFunc[0] = zfail;
-         ctx->Stencil.ZPassFunc[0] = zpass;
-         ctx->Stencil.FailFunc[0] = sfail;
-         set = GL_TRUE;
-      }
-   }
-   if (face != GL_FRONT) {
-      /* set back */
-      if (ctx->Stencil.ZFailFunc[1] != zfail ||
-          ctx->Stencil.ZPassFunc[1] != zpass ||
-          ctx->Stencil.FailFunc[1] != sfail) {
-         FLUSH_VERTICES(ctx, _NEW_STENCIL);
-         ctx->Stencil.ZFailFunc[1] = zfail;
-         ctx->Stencil.ZPassFunc[1] = zpass;
-         ctx->Stencil.FailFunc[1] = sfail;
-         set = GL_TRUE;
-      }
-   }
-   if (set && ctx->Driver.StencilOpSeparate) {
-      ctx->Driver.StencilOpSeparate(ctx, face, sfail, zfail, zpass);
-   }
-}
-
-
-/* OpenGL 2.0 */
-void GLAPIENTRY
-_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilFuncSeparate()\n");
-
-   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)");
-      return;
-   }
-   if (!validate_stencil_func(ctx, func)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)");
-      return;
-   }
-
-   ref = CLAMP(ref, 0, stencilMax);
-
-   FLUSH_VERTICES(ctx, _NEW_STENCIL);
-
-   if (face != GL_BACK) {
-      /* set front */
-      ctx->Stencil.Function[0] = func;
-      ctx->Stencil.Ref[0] = ref;
-      ctx->Stencil.ValueMask[0] = mask;
-   }
-   if (face != GL_FRONT) {
-      /* set back */
-      ctx->Stencil.Function[1] = func;
-      ctx->Stencil.Ref[1] = ref;
-      ctx->Stencil.ValueMask[1] = mask;
-   }
-   if (ctx->Driver.StencilFuncSeparate) {
-      ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask);
-   }
-}
-
-
-/* OpenGL 2.0 */
-void GLAPIENTRY
-_mesa_StencilMaskSeparate(GLenum face, GLuint mask)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glStencilMaskSeparate()\n");
-
-   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilaMaskSeparate(face)");
-      return;
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_STENCIL);
-
-   if (face != GL_BACK) {
-      ctx->Stencil.WriteMask[0] = mask;
-   }
-   if (face != GL_FRONT) {
-      ctx->Stencil.WriteMask[1] = mask;
-   }
-   if (ctx->Driver.StencilMaskSeparate) {
-      ctx->Driver.StencilMaskSeparate(ctx, face, mask);
-   }
-}
-
-
-/**
- * Update derived stencil state.
- */
-void
-_mesa_update_stencil(struct gl_context *ctx)
-{
-   const GLint face = ctx->Stencil._BackFace;
-
-   ctx->Stencil._Enabled = (ctx->Stencil.Enabled &&
-                            ctx->DrawBuffer->Visual.stencilBits > 0);
-
-    ctx->Stencil._TestTwoSide =
-       ctx->Stencil._Enabled &&
-       (ctx->Stencil.Function[0] != ctx->Stencil.Function[face] ||
-	ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] ||
-	ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] ||
-	ctx->Stencil.ZFailFunc[0] != ctx->Stencil.ZFailFunc[face] ||
-	ctx->Stencil.Ref[0] != ctx->Stencil.Ref[face] ||
-	ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[face] ||
-	ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[face]);
-}
-
-
-/**
- * Initialize the context stipple state.
- *
- * \param ctx GL context.
- *
- * Initializes __struct gl_contextRec::Stencil attribute group.
- */
-void
-_mesa_init_stencil(struct gl_context *ctx)
-{
-   ctx->Stencil.Enabled = GL_FALSE;
-   ctx->Stencil.TestTwoSide = GL_FALSE;
-   ctx->Stencil.ActiveFace = 0;  /* 0 = GL_FRONT, 2 = GL_BACK */
-   ctx->Stencil.Function[0] = GL_ALWAYS;
-   ctx->Stencil.Function[1] = GL_ALWAYS;
-   ctx->Stencil.Function[2] = GL_ALWAYS;
-   ctx->Stencil.FailFunc[0] = GL_KEEP;
-   ctx->Stencil.FailFunc[1] = GL_KEEP;
-   ctx->Stencil.FailFunc[2] = GL_KEEP;
-   ctx->Stencil.ZPassFunc[0] = GL_KEEP;
-   ctx->Stencil.ZPassFunc[1] = GL_KEEP;
-   ctx->Stencil.ZPassFunc[2] = GL_KEEP;
-   ctx->Stencil.ZFailFunc[0] = GL_KEEP;
-   ctx->Stencil.ZFailFunc[1] = GL_KEEP;
-   ctx->Stencil.ZFailFunc[2] = GL_KEEP;
-   ctx->Stencil.Ref[0] = 0;
-   ctx->Stencil.Ref[1] = 0;
-   ctx->Stencil.Ref[2] = 0;
-   ctx->Stencil.ValueMask[0] = ~0U;
-   ctx->Stencil.ValueMask[1] = ~0U;
-   ctx->Stencil.ValueMask[2] = ~0U;
-   ctx->Stencil.WriteMask[0] = ~0U;
-   ctx->Stencil.WriteMask[1] = ~0U;
-   ctx->Stencil.WriteMask[2] = ~0U;
-   ctx->Stencil.Clear = 0;
-   ctx->Stencil._BackFace = 1;
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.1

+ *

+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+

+/**

+ * \file stencil.c

+ * Stencil operations.

+ *

+ * Note: There's some conflict between GL_EXT_stencil_two_side and

+ * OpenGL 2.0's two-sided stencil feature.

+ *

+ * With GL_EXT_stencil_two_side, calling glStencilOp/Func/Mask() only the

+ * front OR back face state (as set by glActiveStencilFaceEXT) is set.

+ *

+ * But with OpenGL 2.0, calling glStencilOp/Func/Mask() sets BOTH the

+ * front AND back state.

+ *

+ * Also, note that GL_ATI_separate_stencil is different as well:

+ * glStencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, ...)  vs.

+ * glStencilFuncSeparate(GLenum face, GLenum func, ...).

+ *

+ * This problem is solved by keeping three sets of stencil state:

+ *  state[0] = GL_FRONT state.

+ *  state[1] = OpenGL 2.0 / GL_ATI_separate_stencil GL_BACK state.

+ *  state[2] = GL_EXT_stencil_two_side GL_BACK state.

+ */

+

+

+#include "glheader.h"

+#include "imports.h"

+#include "context.h"

+#include "macros.h"

+#include "stencil.h"

+#include "mtypes.h"

+

+

+static GLboolean

+validate_stencil_op(struct gl_context *ctx, GLenum op)

+{

+   switch (op) {

+   case GL_KEEP:

+   case GL_ZERO:

+   case GL_REPLACE:

+   case GL_INCR:

+   case GL_DECR:

+   case GL_INVERT:

+      return GL_TRUE;

+   case GL_INCR_WRAP_EXT:

+   case GL_DECR_WRAP_EXT:

+      if (ctx->Extensions.EXT_stencil_wrap) {

+         return GL_TRUE;

+      }

+      /* FALL-THROUGH */

+   default:

+      return GL_FALSE;

+   }

+}

+

+

+static GLboolean

+validate_stencil_func(struct gl_context *ctx, GLenum func)

+{

+   switch (func) {

+   case GL_NEVER:

+   case GL_LESS:

+   case GL_LEQUAL:

+   case GL_GREATER:

+   case GL_GEQUAL:

+   case GL_EQUAL:

+   case GL_NOTEQUAL:

+   case GL_ALWAYS:

+      return GL_TRUE;

+   default:

+      return GL_FALSE;

+   }

+}

+

+

+/**

+ * Set the clear value for the stencil buffer.

+ *

+ * \param s clear value.

+ *

+ * \sa glClearStencil().

+ *

+ * Updates gl_stencil_attrib::Clear. On change

+ * flushes the vertices and notifies the driver via

+ * the dd_function_table::ClearStencil callback.

+ */

+void GLAPIENTRY

+_mesa_ClearStencil( GLint s )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (ctx->Stencil.Clear == (GLuint) s)

+      return;

+

+   FLUSH_VERTICES(ctx, _NEW_STENCIL);

+   ctx->Stencil.Clear = (GLuint) s;

+

+   if (ctx->Driver.ClearStencil) {

+      ctx->Driver.ClearStencil( ctx, s );

+   }

+}

+

+

+/**

+ * Set the function and reference value for stencil testing.

+ *

+ * \param frontfunc front test function.

+ * \param backfunc back test function.

+ * \param ref front and back reference value.

+ * \param mask front and back bitmask.

+ *

+ * \sa glStencilFunc().

+ *

+ * Verifies the parameters and updates the respective values in

+ * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the

+ * driver via the dd_function_table::StencilFunc callback.

+ */

+void GLAPIENTRY

+_mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilFuncSeparateATI()\n");

+

+   if (!validate_stencil_func(ctx, frontfunc)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glStencilFuncSeparateATI(frontfunc)");

+      return;

+   }

+   if (!validate_stencil_func(ctx, backfunc)) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glStencilFuncSeparateATI(backfunc)");

+      return;

+   }

+

+   ref = CLAMP( ref, 0, stencilMax );

+

+   /* set both front and back state */

+   if (ctx->Stencil.Function[0] == frontfunc &&

+       ctx->Stencil.Function[1] == backfunc &&

+       ctx->Stencil.ValueMask[0] == mask &&

+       ctx->Stencil.ValueMask[1] == mask &&

+       ctx->Stencil.Ref[0] == ref &&

+       ctx->Stencil.Ref[1] == ref)

+      return;

+   FLUSH_VERTICES(ctx, _NEW_STENCIL);

+   ctx->Stencil.Function[0]  = frontfunc;

+   ctx->Stencil.Function[1]  = backfunc;

+   ctx->Stencil.Ref[0]       = ctx->Stencil.Ref[1]       = ref;

+   ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;

+   if (ctx->Driver.StencilFuncSeparate) {

+      ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,

+                                      frontfunc, ref, mask);

+      ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,

+                                      backfunc, ref, mask);

+   }

+}

+

+

+/**

+ * Set the function and reference value for stencil testing.

+ *

+ * \param func test function.

+ * \param ref reference value.

+ * \param mask bitmask.

+ *

+ * \sa glStencilFunc().

+ *

+ * Verifies the parameters and updates the respective values in

+ * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the

+ * driver via the dd_function_table::StencilFunc callback.

+ */

+void GLAPIENTRY

+_mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;

+   const GLint face = ctx->Stencil.ActiveFace;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilFunc()\n");

+

+   if (!validate_stencil_func(ctx, func)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFunc(func)");

+      return;

+   }

+

+   ref = CLAMP( ref, 0, stencilMax );

+

+   if (face != 0) {

+      if (ctx->Stencil.Function[face] == func &&

+          ctx->Stencil.ValueMask[face] == mask &&

+          ctx->Stencil.Ref[face] == ref)

+         return;

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.Function[face] = func;

+      ctx->Stencil.Ref[face] = ref;

+      ctx->Stencil.ValueMask[face] = mask;

+

+      /* Only propagate the change to the driver if EXT_stencil_two_side

+       * is enabled.

+       */

+      if (ctx->Driver.StencilFuncSeparate && ctx->Stencil.TestTwoSide) {

+         ctx->Driver.StencilFuncSeparate(ctx, GL_BACK, func, ref, mask);

+      }

+   }

+   else {

+      /* set both front and back state */

+      if (ctx->Stencil.Function[0] == func &&

+          ctx->Stencil.Function[1] == func &&

+          ctx->Stencil.ValueMask[0] == mask &&

+          ctx->Stencil.ValueMask[1] == mask &&

+          ctx->Stencil.Ref[0] == ref &&

+          ctx->Stencil.Ref[1] == ref)

+         return;

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.Function[0]  = ctx->Stencil.Function[1]  = func;

+      ctx->Stencil.Ref[0]       = ctx->Stencil.Ref[1]       = ref;

+      ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;

+      if (ctx->Driver.StencilFuncSeparate) {

+         ctx->Driver.StencilFuncSeparate(ctx,

+					 ((ctx->Stencil.TestTwoSide)

+					  ? GL_FRONT : GL_FRONT_AND_BACK),

+                                         func, ref, mask);

+      }

+   }

+}

+

+

+/**

+ * Set the stencil writing mask.

+ *

+ * \param mask bit-mask to enable/disable writing of individual bits in the

+ * stencil planes.

+ *

+ * \sa glStencilMask().

+ *

+ * Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and

+ * notifies the driver via the dd_function_table::StencilMask callback.

+ */

+void GLAPIENTRY

+_mesa_StencilMask( GLuint mask )

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLint face = ctx->Stencil.ActiveFace;

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilMask()\n");

+

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (face != 0) {

+      /* Only modify the EXT_stencil_two_side back-face state.

+       */

+      if (ctx->Stencil.WriteMask[face] == mask)

+         return;

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.WriteMask[face] = mask;

+

+      /* Only propagate the change to the driver if EXT_stencil_two_side

+       * is enabled.

+       */

+      if (ctx->Driver.StencilMaskSeparate && ctx->Stencil.TestTwoSide) {

+         ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, mask);

+      }

+   }

+   else {

+      /* set both front and back state */

+      if (ctx->Stencil.WriteMask[0] == mask &&

+          ctx->Stencil.WriteMask[1] == mask)

+         return;

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.WriteMask[0] = ctx->Stencil.WriteMask[1] = mask;

+      if (ctx->Driver.StencilMaskSeparate) {

+         ctx->Driver.StencilMaskSeparate(ctx,

+					 ((ctx->Stencil.TestTwoSide)

+					  ? GL_FRONT : GL_FRONT_AND_BACK),

+					  mask);

+      }

+   }

+}

+

+

+/**

+ * Set the stencil test actions.

+ *

+ * \param fail action to take when stencil test fails.

+ * \param zfail action to take when stencil test passes, but depth test fails.

+ * \param zpass action to take when stencil test passes and the depth test

+ * passes (or depth testing is not enabled).

+ * 

+ * \sa glStencilOp().

+ * 

+ * Verifies the parameters and updates the respective fields in

+ * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the

+ * driver via the dd_function_table::StencilOp callback.

+ */

+void GLAPIENTRY

+_mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLint face = ctx->Stencil.ActiveFace;

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilOp()\n");

+

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (!validate_stencil_op(ctx, fail)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(sfail)");

+      return;

+   }

+   if (!validate_stencil_op(ctx, zfail)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zfail)");

+      return;

+   }

+   if (!validate_stencil_op(ctx, zpass)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zpass)");

+      return;

+   }

+

+   if (face != 0) {

+      /* only set active face state */

+      if (ctx->Stencil.ZFailFunc[face] == zfail &&

+          ctx->Stencil.ZPassFunc[face] == zpass &&

+          ctx->Stencil.FailFunc[face] == fail)

+         return;

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.ZFailFunc[face] = zfail;

+      ctx->Stencil.ZPassFunc[face] = zpass;

+      ctx->Stencil.FailFunc[face] = fail;

+

+      /* Only propagate the change to the driver if EXT_stencil_two_side

+       * is enabled.

+       */

+      if (ctx->Driver.StencilOpSeparate && ctx->Stencil.TestTwoSide) {

+         ctx->Driver.StencilOpSeparate(ctx, GL_BACK, fail, zfail, zpass);

+      }

+   }

+   else {

+      /* set both front and back state */

+      if (ctx->Stencil.ZFailFunc[0] == zfail &&

+          ctx->Stencil.ZFailFunc[1] == zfail &&

+          ctx->Stencil.ZPassFunc[0] == zpass &&

+          ctx->Stencil.ZPassFunc[1] == zpass &&

+          ctx->Stencil.FailFunc[0] == fail &&

+          ctx->Stencil.FailFunc[1] == fail)

+         return;

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.ZFailFunc[0] = ctx->Stencil.ZFailFunc[1] = zfail;

+      ctx->Stencil.ZPassFunc[0] = ctx->Stencil.ZPassFunc[1] = zpass;

+      ctx->Stencil.FailFunc[0]  = ctx->Stencil.FailFunc[1]  = fail;

+      if (ctx->Driver.StencilOpSeparate) {

+         ctx->Driver.StencilOpSeparate(ctx,

+				       ((ctx->Stencil.TestTwoSide)

+					? GL_FRONT : GL_FRONT_AND_BACK),

+                                       fail, zfail, zpass);

+      }

+   }

+}

+

+

+

+#if _HAVE_FULL_GL

+/* GL_EXT_stencil_two_side */

+void GLAPIENTRY

+_mesa_ActiveStencilFaceEXT(GLenum face)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glActiveStencilFaceEXT()\n");

+

+   if (!ctx->Extensions.EXT_stencil_two_side) {

+      _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveStencilFaceEXT");

+      return;

+   }

+

+   if (face == GL_FRONT || face == GL_BACK) {

+      FLUSH_VERTICES(ctx, _NEW_STENCIL);

+      ctx->Stencil.ActiveFace = (face == GL_FRONT) ? 0 : 2;

+   }

+   else {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glActiveStencilFaceEXT(face)");

+   }

+}

+#endif

+

+

+

+/**

+ * OpenGL 2.0 function.

+ * \todo Make StencilOp() call this function.  And eventually remove the

+ * ctx->Driver.StencilOp function and use ctx->Driver.StencilOpSeparate

+ * instead.

+ */

+void GLAPIENTRY

+_mesa_StencilOpSeparate(GLenum face, GLenum sfail, GLenum zfail, GLenum zpass)

+{

+   GLboolean set = GL_FALSE;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilOpSeparate()\n");

+

+   if (!validate_stencil_op(ctx, sfail)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(sfail)");

+      return;

+   }

+   if (!validate_stencil_op(ctx, zfail)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)");

+      return;

+   }

+   if (!validate_stencil_op(ctx, zpass)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)");

+      return;

+   }

+   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(face)");

+      return;

+   }

+

+   if (face != GL_BACK) {

+      /* set front */

+      if (ctx->Stencil.ZFailFunc[0] != zfail ||

+          ctx->Stencil.ZPassFunc[0] != zpass ||

+          ctx->Stencil.FailFunc[0] != sfail){

+         FLUSH_VERTICES(ctx, _NEW_STENCIL);

+         ctx->Stencil.ZFailFunc[0] = zfail;

+         ctx->Stencil.ZPassFunc[0] = zpass;

+         ctx->Stencil.FailFunc[0] = sfail;

+         set = GL_TRUE;

+      }

+   }

+   if (face != GL_FRONT) {

+      /* set back */

+      if (ctx->Stencil.ZFailFunc[1] != zfail ||

+          ctx->Stencil.ZPassFunc[1] != zpass ||

+          ctx->Stencil.FailFunc[1] != sfail) {

+         FLUSH_VERTICES(ctx, _NEW_STENCIL);

+         ctx->Stencil.ZFailFunc[1] = zfail;

+         ctx->Stencil.ZPassFunc[1] = zpass;

+         ctx->Stencil.FailFunc[1] = sfail;

+         set = GL_TRUE;

+      }

+   }

+   if (set && ctx->Driver.StencilOpSeparate) {

+      ctx->Driver.StencilOpSeparate(ctx, face, sfail, zfail, zpass);

+   }

+}

+

+

+/* OpenGL 2.0 */

+void GLAPIENTRY

+_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilFuncSeparate()\n");

+

+   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)");

+      return;

+   }

+   if (!validate_stencil_func(ctx, func)) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)");

+      return;

+   }

+

+   ref = CLAMP(ref, 0, stencilMax);

+

+   FLUSH_VERTICES(ctx, _NEW_STENCIL);

+

+   if (face != GL_BACK) {

+      /* set front */

+      ctx->Stencil.Function[0] = func;

+      ctx->Stencil.Ref[0] = ref;

+      ctx->Stencil.ValueMask[0] = mask;

+   }

+   if (face != GL_FRONT) {

+      /* set back */

+      ctx->Stencil.Function[1] = func;

+      ctx->Stencil.Ref[1] = ref;

+      ctx->Stencil.ValueMask[1] = mask;

+   }

+   if (ctx->Driver.StencilFuncSeparate) {

+      ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask);

+   }

+}

+

+

+/* OpenGL 2.0 */

+void GLAPIENTRY

+_mesa_StencilMaskSeparate(GLenum face, GLuint mask)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_API)

+      _mesa_debug(ctx, "glStencilMaskSeparate()\n");

+

+   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {

+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilaMaskSeparate(face)");

+      return;

+   }

+

+   FLUSH_VERTICES(ctx, _NEW_STENCIL);

+

+   if (face != GL_BACK) {

+      ctx->Stencil.WriteMask[0] = mask;

+   }

+   if (face != GL_FRONT) {

+      ctx->Stencil.WriteMask[1] = mask;

+   }

+   if (ctx->Driver.StencilMaskSeparate) {

+      ctx->Driver.StencilMaskSeparate(ctx, face, mask);

+   }

+}

+

+

+/**

+ * Update derived stencil state.

+ */

+void

+_mesa_update_stencil(struct gl_context *ctx)

+{

+   const GLint face = ctx->Stencil._BackFace;

+

+   ctx->Stencil._Enabled = (ctx->Stencil.Enabled &&

+                            ctx->DrawBuffer->Visual.stencilBits > 0);

+

+    ctx->Stencil._TestTwoSide =

+       ctx->Stencil._Enabled &&

+       (ctx->Stencil.Function[0] != ctx->Stencil.Function[face] ||

+	ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] ||

+	ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] ||

+	ctx->Stencil.ZFailFunc[0] != ctx->Stencil.ZFailFunc[face] ||

+	ctx->Stencil.Ref[0] != ctx->Stencil.Ref[face] ||

+	ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[face] ||

+	ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[face]);

+}

+

+

+/**

+ * Initialize the context stipple state.

+ *

+ * \param ctx GL context.

+ *

+ * Initializes __struct gl_contextRec::Stencil attribute group.

+ */

+void

+_mesa_init_stencil(struct gl_context *ctx)

+{

+   ctx->Stencil.Enabled = GL_FALSE;

+   ctx->Stencil.TestTwoSide = GL_FALSE;

+   ctx->Stencil.ActiveFace = 0;  /* 0 = GL_FRONT, 2 = GL_BACK */

+   ctx->Stencil.Function[0] = GL_ALWAYS;

+   ctx->Stencil.Function[1] = GL_ALWAYS;

+   ctx->Stencil.Function[2] = GL_ALWAYS;

+   ctx->Stencil.FailFunc[0] = GL_KEEP;

+   ctx->Stencil.FailFunc[1] = GL_KEEP;

+   ctx->Stencil.FailFunc[2] = GL_KEEP;

+   ctx->Stencil.ZPassFunc[0] = GL_KEEP;

+   ctx->Stencil.ZPassFunc[1] = GL_KEEP;

+   ctx->Stencil.ZPassFunc[2] = GL_KEEP;

+   ctx->Stencil.ZFailFunc[0] = GL_KEEP;

+   ctx->Stencil.ZFailFunc[1] = GL_KEEP;

+   ctx->Stencil.ZFailFunc[2] = GL_KEEP;

+   ctx->Stencil.Ref[0] = 0;

+   ctx->Stencil.Ref[1] = 0;

+   ctx->Stencil.Ref[2] = 0;

+   ctx->Stencil.ValueMask[0] = ~0U;

+   ctx->Stencil.ValueMask[1] = ~0U;

+   ctx->Stencil.ValueMask[2] = ~0U;

+   ctx->Stencil.WriteMask[0] = ~0U;

+   ctx->Stencil.WriteMask[1] = ~0U;

+   ctx->Stencil.WriteMask[2] = ~0U;

+   ctx->Stencil.Clear = 0;

+   ctx->Stencil._BackFace = 1;

+}

diff --git a/mesalib/src/mesa/main/syncobj.c b/mesalib/src/mesa/main/syncobj.c
index 676038430..25307a17c 100644
--- a/mesalib/src/mesa/main/syncobj.c
+++ b/mesalib/src/mesa/main/syncobj.c
@@ -125,7 +125,7 @@ _mesa_wait_sync(struct gl_context *ctx, struct gl_sync_object *syncObj,
 }

 

 

-void

+void GLAPIENTRY

 _mesa_init_sync_object_functions(struct dd_function_table *driver)

 {

    driver->NewSyncObject = _mesa_new_sync_object;

@@ -140,7 +140,7 @@ _mesa_init_sync_object_functions(struct dd_function_table *driver)
 }

 

 

-void

+void GLAPIENTRY

 _mesa_init_sync_dispatch(struct _glapi_table *disp)

 {

    SET_IsSync(disp, _mesa_IsSync);

@@ -156,7 +156,7 @@ _mesa_init_sync_dispatch(struct _glapi_table *disp)
 /**

  * Allocate/init the context state related to sync objects.

  */

-void

+void GLAPIENTRY

 _mesa_init_sync(struct gl_context *ctx)

 {

    (void) ctx;

@@ -166,7 +166,7 @@ _mesa_init_sync(struct gl_context *ctx)
 /**

  * Free the context state related to sync objects.

  */

-void

+void GLAPIENTRY

 _mesa_free_sync_data(struct gl_context *ctx)

 {

    (void) ctx;

@@ -182,7 +182,7 @@ _mesa_validate_sync(struct gl_sync_object *syncObj)
 }

 

 

-void

+void GLAPIENTRY

 _mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)

 {

    _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

@@ -191,7 +191,7 @@ _mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)
 }

 

 

-void

+void GLAPIENTRY

 _mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)

 {

    _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

diff --git a/mesalib/src/mesa/main/syncobj.h b/mesalib/src/mesa/main/syncobj.h
index ac1384f61..e83ac8b0e 100644
--- a/mesalib/src/mesa/main/syncobj.h
+++ b/mesalib/src/mesa/main/syncobj.h
@@ -41,22 +41,22 @@ struct gl_sync_object;
 

 #if FEATURE_ARB_sync

 

-extern void

+extern void GLAPIENTRY

 _mesa_init_sync_object_functions(struct dd_function_table *driver);

 

-extern void

+extern void GLAPIENTRY

 _mesa_init_sync_dispatch(struct _glapi_table *disp);

 

-extern void

+extern void GLAPIENTRY

 _mesa_init_sync(struct gl_context *);

 

-extern void

+extern void GLAPIENTRY

 _mesa_free_sync_data(struct gl_context *);

 

-extern void

+extern void GLAPIENTRY

 _mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj);

 

-extern void

+extern void GLAPIENTRY

 _mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj);

 

 extern GLboolean GLAPIENTRY

diff --git a/mesalib/src/mesa/main/texcompress_s3tc.c b/mesalib/src/mesa/main/texcompress_s3tc.c
index 90be6c0a8..479806eca 100644
--- a/mesalib/src/mesa/main/texcompress_s3tc.c
+++ b/mesalib/src/mesa/main/texcompress_s3tc.c
@@ -50,7 +50,11 @@
 

 

 #if defined(_WIN32) || defined(WIN32)

+#ifdef _DEBUG

+#define DXTN_LIBNAME "dxtn_dbg.dll"

+#else

 #define DXTN_LIBNAME "dxtn.dll"

+#endif

 #define RTLD_LAZY 0

 #define RTLD_GLOBAL 0

 #elif defined(__DJGPP__)

diff --git a/mesalib/src/mesa/state_tracker/st_atom_blend.c b/mesalib/src/mesa/state_tracker/st_atom_blend.c
index fb1c7a4ef..e3b3b9936 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_blend.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_blend.c
@@ -1,302 +1,302 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
- /*
-  * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
-  *   Brian Paul
-  */
- 
-
-#include "st_context.h"
-#include "st_atom.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "cso_cache/cso_context.h"
-
-#include "main/macros.h"
-
-/**
- * Convert GLenum blend tokens to pipe tokens.
- * Both blend factors and blend funcs are accepted.
- */
-static GLuint
-translate_blend(GLenum blend)
-{
-   switch (blend) {
-   /* blend functions */
-   case GL_FUNC_ADD:
-      return PIPE_BLEND_ADD;
-   case GL_FUNC_SUBTRACT:
-      return PIPE_BLEND_SUBTRACT;
-   case GL_FUNC_REVERSE_SUBTRACT:
-      return PIPE_BLEND_REVERSE_SUBTRACT;
-   case GL_MIN:
-      return PIPE_BLEND_MIN;
-   case GL_MAX:
-      return PIPE_BLEND_MAX;
-
-   /* blend factors */
-   case GL_ONE:
-      return PIPE_BLENDFACTOR_ONE;
-   case GL_SRC_COLOR:
-      return PIPE_BLENDFACTOR_SRC_COLOR;
-   case GL_SRC_ALPHA:
-      return PIPE_BLENDFACTOR_SRC_ALPHA;
-   case GL_DST_ALPHA:
-      return PIPE_BLENDFACTOR_DST_ALPHA;
-   case GL_DST_COLOR:
-      return PIPE_BLENDFACTOR_DST_COLOR;
-   case GL_SRC_ALPHA_SATURATE:
-      return PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE;
-   case GL_CONSTANT_COLOR:
-      return PIPE_BLENDFACTOR_CONST_COLOR;
-   case GL_CONSTANT_ALPHA:
-      return PIPE_BLENDFACTOR_CONST_ALPHA;
-      /*
-      return PIPE_BLENDFACTOR_SRC1_COLOR;
-      return PIPE_BLENDFACTOR_SRC1_ALPHA;
-      */
-   case GL_ZERO:
-      return PIPE_BLENDFACTOR_ZERO;
-   case GL_ONE_MINUS_SRC_COLOR:
-      return PIPE_BLENDFACTOR_INV_SRC_COLOR;
-   case GL_ONE_MINUS_SRC_ALPHA:
-      return PIPE_BLENDFACTOR_INV_SRC_ALPHA;
-   case GL_ONE_MINUS_DST_COLOR:
-      return PIPE_BLENDFACTOR_INV_DST_COLOR;
-   case GL_ONE_MINUS_DST_ALPHA:
-      return PIPE_BLENDFACTOR_INV_DST_ALPHA;
-   case GL_ONE_MINUS_CONSTANT_COLOR:
-      return PIPE_BLENDFACTOR_INV_CONST_COLOR;
-   case GL_ONE_MINUS_CONSTANT_ALPHA:
-      return PIPE_BLENDFACTOR_INV_CONST_ALPHA;
-      /*
-      return PIPE_BLENDFACTOR_INV_SRC1_COLOR;
-      return PIPE_BLENDFACTOR_INV_SRC1_ALPHA;
-      */
-   default:
-      assert("invalid GL token in translate_blend()" == NULL);
-      return 0;
-   }
-}
-
-
-/**
- * Convert GLenum logicop tokens to pipe tokens.
- */
-static GLuint
-translate_logicop(GLenum logicop)
-{
-   switch (logicop) {
-   case GL_CLEAR:
-      return PIPE_LOGICOP_CLEAR;
-   case GL_NOR:
-      return PIPE_LOGICOP_NOR;
-   case GL_AND_INVERTED:
-      return PIPE_LOGICOP_AND_INVERTED;
-   case GL_COPY_INVERTED:
-      return PIPE_LOGICOP_COPY_INVERTED;
-   case GL_AND_REVERSE:
-      return PIPE_LOGICOP_AND_REVERSE;
-   case GL_INVERT:
-      return PIPE_LOGICOP_INVERT;
-   case GL_XOR:
-      return PIPE_LOGICOP_XOR;
-   case GL_NAND:
-      return PIPE_LOGICOP_NAND;
-   case GL_AND:
-      return PIPE_LOGICOP_AND;
-   case GL_EQUIV:
-      return PIPE_LOGICOP_EQUIV;
-   case GL_NOOP:
-      return PIPE_LOGICOP_NOOP;
-   case GL_OR_INVERTED:
-      return PIPE_LOGICOP_OR_INVERTED;
-   case GL_COPY:
-      return PIPE_LOGICOP_COPY;
-   case GL_OR_REVERSE:
-      return PIPE_LOGICOP_OR_REVERSE;
-   case GL_OR:
-      return PIPE_LOGICOP_OR;
-   case GL_SET:
-      return PIPE_LOGICOP_SET;
-   default:
-      assert("invalid GL token in translate_logicop()" == NULL);
-      return 0;
-   }
-}
-
-/**
- * Figure out if colormasks are different per rt.
- */
-static GLboolean
-colormask_per_rt(struct gl_context *ctx)
-{
-   /* a bit suboptimal have to compare lots of values */
-   unsigned i;
-   for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) {
-      if (memcmp(ctx->Color.ColorMask[0], ctx->Color.ColorMask[i], 4)) {
-         return GL_TRUE;
-      }
-   }
-   return GL_FALSE;
-}
-
-/**
- * Figure out if blend enables/state are different per rt.
- */
-static GLboolean
-blend_per_rt(struct gl_context *ctx)
-{
-   if (ctx->Color.BlendEnabled &&
-      (ctx->Color.BlendEnabled != ((1 << ctx->Const.MaxDrawBuffers) - 1))) {
-      /* This can only happen if GL_EXT_draw_buffers2 is enabled */
-      return GL_TRUE;
-   }
-   if (ctx->Color._BlendFuncPerBuffer || ctx->Color._BlendEquationPerBuffer) {
-      /* this can only happen if GL_ARB_draw_buffers_blend is enabled */
-      return GL_TRUE;
-   }
-   return GL_FALSE;
-}
-
-static void 
-update_blend( struct st_context *st )
-{
-   struct pipe_blend_state *blend = &st->state.blend;
-   unsigned num_state = 1;
-   unsigned i, j;
-
-   memset(blend, 0, sizeof(*blend));
-
-   if (blend_per_rt(st->ctx) || colormask_per_rt(st->ctx)) {
-      num_state = st->ctx->Const.MaxDrawBuffers;
-      blend->independent_blend_enable = 1;
-   }
-   /* Note it is impossible to correctly deal with EXT_blend_logic_op and
-      EXT_draw_buffers2/EXT_blend_equation_separate at the same time.
-      These combinations would require support for per-rt logicop enables
-      and separate alpha/rgb logicop/blend support respectively. Neither
-      possible in gallium nor most hardware. Assume these combinations
-      don't happen. */
-   if (st->ctx->Color.ColorLogicOpEnabled ||
-       (st->ctx->Color.BlendEnabled &&
-        st->ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) {
-      /* logicop enabled */
-      blend->logicop_enable = 1;
-      blend->logicop_func = translate_logicop(st->ctx->Color.LogicOp);
-   }
-   else if (st->ctx->Color.BlendEnabled) {
-      /* blending enabled */
-      for (i = 0, j = 0; i < num_state; i++) {
-
-         blend->rt[i].blend_enable = (st->ctx->Color.BlendEnabled >> i) & 0x1;
-
-         if (st->ctx->Extensions.ARB_draw_buffers_blend)
-            j = i;
-
-         blend->rt[i].rgb_func =
-            translate_blend(st->ctx->Color.Blend[j].EquationRGB);
-
-         if (st->ctx->Color.Blend[i].EquationRGB == GL_MIN ||
-             st->ctx->Color.Blend[i].EquationRGB == GL_MAX) {
-            /* Min/max are special */
-            blend->rt[i].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
-            blend->rt[i].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
-         }
-         else {
-            blend->rt[i].rgb_src_factor =
-               translate_blend(st->ctx->Color.Blend[j].SrcRGB);
-            blend->rt[i].rgb_dst_factor =
-               translate_blend(st->ctx->Color.Blend[j].DstRGB);
-         }
-
-         blend->rt[i].alpha_func =
-            translate_blend(st->ctx->Color.Blend[j].EquationA);
-
-         if (st->ctx->Color.Blend[i].EquationA == GL_MIN ||
-             st->ctx->Color.Blend[i].EquationA == GL_MAX) {
-            /* Min/max are special */
-            blend->rt[i].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
-            blend->rt[i].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
-         }
-         else {
-            blend->rt[i].alpha_src_factor =
-               translate_blend(st->ctx->Color.Blend[j].SrcA);
-            blend->rt[i].alpha_dst_factor =
-               translate_blend(st->ctx->Color.Blend[j].DstA);
-         }
-      }
-   }
-   else {
-      /* no blending / logicop */
-   }
-
-   /* Colormask - maybe reverse these bits? */
-   for (i = 0; i < num_state; i++) {
-      if (st->ctx->Color.ColorMask[i][0])
-         blend->rt[i].colormask |= PIPE_MASK_R;
-      if (st->ctx->Color.ColorMask[i][1])
-         blend->rt[i].colormask |= PIPE_MASK_G;
-      if (st->ctx->Color.ColorMask[i][2])
-         blend->rt[i].colormask |= PIPE_MASK_B;
-      if (st->ctx->Color.ColorMask[i][3])
-         blend->rt[i].colormask |= PIPE_MASK_A;
-   }
-
-   if (st->ctx->Color.DitherFlag)
-      blend->dither = 1;
-
-   if (st->ctx->Multisample.Enabled) {
-      /* unlike in gallium/d3d10 these operations are only performed
-         if msaa is enabled */
-      if (st->ctx->Multisample.SampleAlphaToCoverage)
-         blend->alpha_to_coverage = 1;
-      if (st->ctx->Multisample.SampleAlphaToOne)
-         blend->alpha_to_one = 1;
-   }
-
-   cso_set_blend(st->cso_context, blend);
-
-   {
-      struct pipe_blend_color bc;
-      COPY_4FV(bc.color, st->ctx->Color.BlendColor);
-      cso_set_blend_color(st->cso_context, &bc);
-   }
-}
-
-
-const struct st_tracked_state st_update_blend = {
-   "st_update_blend",					/* name */
-   {							/* dirty */
-      (_NEW_COLOR | _NEW_MULTISAMPLE),  /* XXX _NEW_BLEND someday? */	/* mesa */
-      0,						/* st */
-   },
-   update_blend,					/* update */
-};
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+ /*

+  * Authors:

+  *   Keith Whitwell <keith@tungstengraphics.com>

+  *   Brian Paul

+  */

+ 

+

+#include "st_context.h"

+#include "st_atom.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "cso_cache/cso_context.h"

+

+#include "main/macros.h"

+

+/**

+ * Convert GLenum blend tokens to pipe tokens.

+ * Both blend factors and blend funcs are accepted.

+ */

+static GLuint

+translate_blend(GLenum blend)

+{

+   switch (blend) {

+   /* blend functions */

+   case GL_FUNC_ADD:

+      return PIPE_BLEND_ADD;

+   case GL_FUNC_SUBTRACT:

+      return PIPE_BLEND_SUBTRACT;

+   case GL_FUNC_REVERSE_SUBTRACT:

+      return PIPE_BLEND_REVERSE_SUBTRACT;

+   case GL_MIN:

+      return PIPE_BLEND_MIN;

+   case GL_MAX:

+      return PIPE_BLEND_MAX;

+

+   /* blend factors */

+   case GL_ONE:

+      return PIPE_BLENDFACTOR_ONE;

+   case GL_SRC_COLOR:

+      return PIPE_BLENDFACTOR_SRC_COLOR;

+   case GL_SRC_ALPHA:

+      return PIPE_BLENDFACTOR_SRC_ALPHA;

+   case GL_DST_ALPHA:

+      return PIPE_BLENDFACTOR_DST_ALPHA;

+   case GL_DST_COLOR:

+      return PIPE_BLENDFACTOR_DST_COLOR;

+   case GL_SRC_ALPHA_SATURATE:

+      return PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE;

+   case GL_CONSTANT_COLOR:

+      return PIPE_BLENDFACTOR_CONST_COLOR;

+   case GL_CONSTANT_ALPHA:

+      return PIPE_BLENDFACTOR_CONST_ALPHA;

+      /*

+      return PIPE_BLENDFACTOR_SRC1_COLOR;

+      return PIPE_BLENDFACTOR_SRC1_ALPHA;

+      */

+   case GL_ZERO:

+      return PIPE_BLENDFACTOR_ZERO;

+   case GL_ONE_MINUS_SRC_COLOR:

+      return PIPE_BLENDFACTOR_INV_SRC_COLOR;

+   case GL_ONE_MINUS_SRC_ALPHA:

+      return PIPE_BLENDFACTOR_INV_SRC_ALPHA;

+   case GL_ONE_MINUS_DST_COLOR:

+      return PIPE_BLENDFACTOR_INV_DST_COLOR;

+   case GL_ONE_MINUS_DST_ALPHA:

+      return PIPE_BLENDFACTOR_INV_DST_ALPHA;

+   case GL_ONE_MINUS_CONSTANT_COLOR:

+      return PIPE_BLENDFACTOR_INV_CONST_COLOR;

+   case GL_ONE_MINUS_CONSTANT_ALPHA:

+      return PIPE_BLENDFACTOR_INV_CONST_ALPHA;

+      /*

+      return PIPE_BLENDFACTOR_INV_SRC1_COLOR;

+      return PIPE_BLENDFACTOR_INV_SRC1_ALPHA;

+      */

+   default:

+      assert("invalid GL token in translate_blend()" == NULL);

+      return 0;

+   }

+}

+

+

+/**

+ * Convert GLenum logicop tokens to pipe tokens.

+ */

+static GLuint

+translate_logicop(GLenum logicop)

+{

+   switch (logicop) {

+   case GL_CLEAR:

+      return PIPE_LOGICOP_CLEAR;

+   case GL_NOR:

+      return PIPE_LOGICOP_NOR;

+   case GL_AND_INVERTED:

+      return PIPE_LOGICOP_AND_INVERTED;

+   case GL_COPY_INVERTED:

+      return PIPE_LOGICOP_COPY_INVERTED;

+   case GL_AND_REVERSE:

+      return PIPE_LOGICOP_AND_REVERSE;

+   case GL_INVERT:

+      return PIPE_LOGICOP_INVERT;

+   case GL_XOR:

+      return PIPE_LOGICOP_XOR;

+   case GL_NAND:

+      return PIPE_LOGICOP_NAND;

+   case GL_AND:

+      return PIPE_LOGICOP_AND;

+   case GL_EQUIV:

+      return PIPE_LOGICOP_EQUIV;

+   case GL_NOOP:

+      return PIPE_LOGICOP_NOOP;

+   case GL_OR_INVERTED:

+      return PIPE_LOGICOP_OR_INVERTED;

+   case GL_COPY:

+      return PIPE_LOGICOP_COPY;

+   case GL_OR_REVERSE:

+      return PIPE_LOGICOP_OR_REVERSE;

+   case GL_OR:

+      return PIPE_LOGICOP_OR;

+   case GL_SET:

+      return PIPE_LOGICOP_SET;

+   default:

+      assert("invalid GL token in translate_logicop()" == NULL);

+      return 0;

+   }

+}

+

+/**

+ * Figure out if colormasks are different per rt.

+ */

+static GLboolean

+colormask_per_rt(struct gl_context *ctx)

+{

+   /* a bit suboptimal have to compare lots of values */

+   unsigned i;

+   for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) {

+      if (memcmp(ctx->Color.ColorMask[0], ctx->Color.ColorMask[i], 4)) {

+         return GL_TRUE;

+      }

+   }

+   return GL_FALSE;

+}

+

+/**

+ * Figure out if blend enables/state are different per rt.

+ */

+static GLboolean

+blend_per_rt(struct gl_context *ctx)

+{

+   if (ctx->Color.BlendEnabled &&

+      (ctx->Color.BlendEnabled != ((1 << ctx->Const.MaxDrawBuffers) - 1))) {

+      /* This can only happen if GL_EXT_draw_buffers2 is enabled */

+      return GL_TRUE;

+   }

+   if (ctx->Color._BlendFuncPerBuffer || ctx->Color._BlendEquationPerBuffer) {

+      /* this can only happen if GL_ARB_draw_buffers_blend is enabled */

+      return GL_TRUE;

+   }

+   return GL_FALSE;

+}

+

+static void 

+update_blend( struct st_context *st )

+{

+   struct pipe_blend_state *blend = &st->state.blend;

+   unsigned num_state = 1;

+   unsigned i, j;

+

+   memset(blend, 0, sizeof(*blend));

+

+   if (blend_per_rt(st->ctx) || colormask_per_rt(st->ctx)) {

+      num_state = st->ctx->Const.MaxDrawBuffers;

+      blend->independent_blend_enable = 1;

+   }

+   /* Note it is impossible to correctly deal with EXT_blend_logic_op and

+      EXT_draw_buffers2/EXT_blend_equation_separate at the same time.

+      These combinations would require support for per-rt logicop enables

+      and separate alpha/rgb logicop/blend support respectively. Neither

+      possible in gallium nor most hardware. Assume these combinations

+      don't happen. */

+   if (st->ctx->Color.ColorLogicOpEnabled ||

+       (st->ctx->Color.BlendEnabled &&

+        st->ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) {

+      /* logicop enabled */

+      blend->logicop_enable = 1;

+      blend->logicop_func = translate_logicop(st->ctx->Color.LogicOp);

+   }

+   else if (st->ctx->Color.BlendEnabled) {

+      /* blending enabled */

+      for (i = 0, j = 0; i < num_state; i++) {

+

+         blend->rt[i].blend_enable = (st->ctx->Color.BlendEnabled >> i) & 0x1;

+

+         if (st->ctx->Extensions.ARB_draw_buffers_blend)

+            j = i;

+

+         blend->rt[i].rgb_func =

+            translate_blend(st->ctx->Color.Blend[j].EquationRGB);

+

+         if (st->ctx->Color.Blend[i].EquationRGB == GL_MIN ||

+             st->ctx->Color.Blend[i].EquationRGB == GL_MAX) {

+            /* Min/max are special */

+            blend->rt[i].rgb_src_factor = PIPE_BLENDFACTOR_ONE;

+            blend->rt[i].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;

+         }

+         else {

+            blend->rt[i].rgb_src_factor =

+               translate_blend(st->ctx->Color.Blend[j].SrcRGB);

+            blend->rt[i].rgb_dst_factor =

+               translate_blend(st->ctx->Color.Blend[j].DstRGB);

+         }

+

+         blend->rt[i].alpha_func =

+            translate_blend(st->ctx->Color.Blend[j].EquationA);

+

+         if (st->ctx->Color.Blend[i].EquationA == GL_MIN ||

+             st->ctx->Color.Blend[i].EquationA == GL_MAX) {

+            /* Min/max are special */

+            blend->rt[i].alpha_src_factor = PIPE_BLENDFACTOR_ONE;

+            blend->rt[i].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;

+         }

+         else {

+            blend->rt[i].alpha_src_factor =

+               translate_blend(st->ctx->Color.Blend[j].SrcA);

+            blend->rt[i].alpha_dst_factor =

+               translate_blend(st->ctx->Color.Blend[j].DstA);

+         }

+      }

+   }

+   else {

+      /* no blending / logicop */

+   }

+

+   /* Colormask - maybe reverse these bits? */

+   for (i = 0; i < num_state; i++) {

+      if (st->ctx->Color.ColorMask[i][0])

+         blend->rt[i].colormask |= PIPE_MASK_R;

+      if (st->ctx->Color.ColorMask[i][1])

+         blend->rt[i].colormask |= PIPE_MASK_G;

+      if (st->ctx->Color.ColorMask[i][2])

+         blend->rt[i].colormask |= PIPE_MASK_B;

+      if (st->ctx->Color.ColorMask[i][3])

+         blend->rt[i].colormask |= PIPE_MASK_A;

+   }

+

+   if (st->ctx->Color.DitherFlag)

+      blend->dither = 1;

+

+   if (st->ctx->Multisample.Enabled) {

+      /* unlike in gallium/d3d10 these operations are only performed

+         if msaa is enabled */

+      if (st->ctx->Multisample.SampleAlphaToCoverage)

+         blend->alpha_to_coverage = 1;

+      if (st->ctx->Multisample.SampleAlphaToOne)

+         blend->alpha_to_one = 1;

+   }

+

+   cso_set_blend(st->cso_context, blend);

+

+   {

+      struct pipe_blend_color bc;

+      COPY_4FV(bc.color, st->ctx->Color.BlendColor);

+      cso_set_blend_color(st->cso_context, &bc);

+   }

+}

+

+

+const struct st_tracked_state st_update_blend = {

+   "st_update_blend",					/* name */

+   {							/* dirty */

+      (_NEW_COLOR | _NEW_MULTISAMPLE),  /* XXX _NEW_BLEND someday? */	/* mesa */

+      0,						/* st */

+   },

+   update_blend,					/* update */

+};

diff --git a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
index 76386fe01..678a270c7 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
@@ -1,182 +1,182 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
- /*
-  * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
-  *   Brian Paul
-  */
- 
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_fbo.h"
-#include "st_texture.h"
-#include "pipe/p_context.h"
-#include "cso_cache/cso_context.h"
-#include "util/u_math.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-
-
-/**
- * When doing GL render to texture, we have to be sure that finalize_texture()
- * didn't yank out the pipe_resource that we earlier created a surface for.
- * Check for that here and create a new surface if needed.
- */
-static void
-update_renderbuffer_surface(struct st_context *st,
-                            struct st_renderbuffer *strb)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_resource *resource = strb->rtt->pt;
-   int rtt_width = strb->Base.Width;
-   int rtt_height = strb->Base.Height;
-   enum pipe_format format = st->ctx->Color.sRGBEnabled ? resource->format : util_format_linear(resource->format);
-
-   if (!strb->surface ||
-       strb->surface->format != format ||
-       strb->surface->texture != resource ||
-       strb->surface->width != rtt_width ||
-       strb->surface->height != rtt_height) {
-      GLuint level;
-      /* find matching mipmap level size */
-      for (level = 0; level <= resource->last_level; level++) {
-         if (u_minify(resource->width0, level) == rtt_width &&
-             u_minify(resource->height0, level) == rtt_height) {
-            struct pipe_surface surf_tmpl;
-            memset(&surf_tmpl, 0, sizeof(surf_tmpl));
-            surf_tmpl.format = format;
-            surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
-            surf_tmpl.u.tex.level = level;
-            surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
-            surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
-
-            pipe_surface_reference(&strb->surface, NULL);
-
-            strb->surface = pipe->create_surface(pipe,
-                                                 resource,
-                                                 &surf_tmpl);
-#if 0
-            printf("-- alloc new surface %d x %d into tex %p\n",
-                   strb->surface->width, strb->surface->height,
-                   texture);
-#endif
-            break;
-         }
-      }
-   }
-}
-
-
-/**
- * Update framebuffer state (color, depth, stencil, etc. buffers)
- */
-static void
-update_framebuffer_state( struct st_context *st )
-{
-   struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;
-   struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-   struct st_renderbuffer *strb;
-   GLuint i;
-
-   framebuffer->width = fb->Width;
-   framebuffer->height = fb->Height;
-
-   /*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/
-
-   /* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
-    * to determine which surfaces to draw to
-    */
-   framebuffer->nr_cbufs = 0;
-   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
-      strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
-
-      if (strb) {
-         /*printf("--------- framebuffer surface rtt %p\n", strb->rtt);*/
-         if (strb->rtt) {
-            /* rendering to a GL texture, may have to update surface */
-            update_renderbuffer_surface(st, strb);
-         }
-
-         if (strb->surface) {
-            pipe_surface_reference(&framebuffer->cbufs[framebuffer->nr_cbufs],
-                                   strb->surface);
-            framebuffer->nr_cbufs++;
-         }
-         strb->defined = GL_TRUE; /* we'll be drawing something */
-      }
-   }
-   for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
-      pipe_surface_reference(&framebuffer->cbufs[i], NULL);
-   }
-
-   /*
-    * Depth/Stencil renderbuffer/surface.
-    */
-   strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
-   if (strb) {
-      strb = st_renderbuffer(strb->Base.Wrapped);
-      if (strb->rtt) {
-         /* rendering to a GL texture, may have to update surface */
-         update_renderbuffer_surface(st, strb);
-      }
-      pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
-   }
-   else {
-      strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
-      if (strb) {
-         strb = st_renderbuffer(strb->Base.Wrapped);
-         assert(strb->surface);
-         pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
-      }
-      else
-         pipe_surface_reference(&framebuffer->zsbuf, NULL);
-   }
-
-#ifdef DEBUG
-   /* Make sure the resource binding flags were set properly */
-   for (i = 0; i < framebuffer->nr_cbufs; i++) {
-      assert(framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
-   }
-   if (framebuffer->zsbuf) {
-      assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
-   }
-#endif
-
-   cso_set_framebuffer(st->cso_context, framebuffer);
-}
-
-
-const struct st_tracked_state st_update_framebuffer = {
-   "st_update_framebuffer",				/* name */
-   {							/* dirty */
-      _NEW_BUFFERS,					/* mesa */
-      ST_NEW_FRAMEBUFFER,				/* st */
-   },
-   update_framebuffer_state				/* update */
-};
-
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+ /*

+  * Authors:

+  *   Keith Whitwell <keith@tungstengraphics.com>

+  *   Brian Paul

+  */

+ 

+#include "st_context.h"

+#include "st_atom.h"

+#include "st_cb_fbo.h"

+#include "st_texture.h"

+#include "pipe/p_context.h"

+#include "cso_cache/cso_context.h"

+#include "util/u_math.h"

+#include "util/u_inlines.h"

+#include "util/u_format.h"

+

+

+/**

+ * When doing GL render to texture, we have to be sure that finalize_texture()

+ * didn't yank out the pipe_resource that we earlier created a surface for.

+ * Check for that here and create a new surface if needed.

+ */

+static void

+update_renderbuffer_surface(struct st_context *st,

+                            struct st_renderbuffer *strb)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_resource *resource = strb->rtt->pt;

+   int rtt_width = strb->Base.Width;

+   int rtt_height = strb->Base.Height;

+   enum pipe_format format = st->ctx->Color.sRGBEnabled ? resource->format : util_format_linear(resource->format);

+

+   if (!strb->surface ||

+       strb->surface->format != format ||

+       strb->surface->texture != resource ||

+       strb->surface->width != rtt_width ||

+       strb->surface->height != rtt_height) {

+      GLuint level;

+      /* find matching mipmap level size */

+      for (level = 0; level <= resource->last_level; level++) {

+         if (u_minify(resource->width0, level) == rtt_width &&

+             u_minify(resource->height0, level) == rtt_height) {

+            struct pipe_surface surf_tmpl;

+            memset(&surf_tmpl, 0, sizeof(surf_tmpl));

+            surf_tmpl.format = format;

+            surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;

+            surf_tmpl.u.tex.level = level;

+            surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;

+            surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;

+

+            pipe_surface_reference(&strb->surface, NULL);

+

+            strb->surface = pipe->create_surface(pipe,

+                                                 resource,

+                                                 &surf_tmpl);

+#if 0

+            printf("-- alloc new surface %d x %d into tex %p\n",

+                   strb->surface->width, strb->surface->height,

+                   texture);

+#endif

+            break;

+         }

+      }

+   }

+}

+

+

+/**

+ * Update framebuffer state (color, depth, stencil, etc. buffers)

+ */

+static void

+update_framebuffer_state( struct st_context *st )

+{

+   struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;

+   struct gl_framebuffer *fb = st->ctx->DrawBuffer;

+   struct st_renderbuffer *strb;

+   GLuint i;

+

+   framebuffer->width = fb->Width;

+   framebuffer->height = fb->Height;

+

+   /*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/

+

+   /* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state

+    * to determine which surfaces to draw to

+    */

+   framebuffer->nr_cbufs = 0;

+   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {

+      strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);

+

+      if (strb) {

+         /*printf("--------- framebuffer surface rtt %p\n", strb->rtt);*/

+         if (strb->rtt) {

+            /* rendering to a GL texture, may have to update surface */

+            update_renderbuffer_surface(st, strb);

+         }

+

+         if (strb->surface) {

+            pipe_surface_reference(&framebuffer->cbufs[framebuffer->nr_cbufs],

+                                   strb->surface);

+            framebuffer->nr_cbufs++;

+         }

+         strb->defined = GL_TRUE; /* we'll be drawing something */

+      }

+   }

+   for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {

+      pipe_surface_reference(&framebuffer->cbufs[i], NULL);

+   }

+

+   /*

+    * Depth/Stencil renderbuffer/surface.

+    */

+   strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);

+   if (strb) {

+      strb = st_renderbuffer(strb->Base.Wrapped);

+      if (strb->rtt) {

+         /* rendering to a GL texture, may have to update surface */

+         update_renderbuffer_surface(st, strb);

+      }

+      pipe_surface_reference(&framebuffer->zsbuf, strb->surface);

+   }

+   else {

+      strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);

+      if (strb) {

+         strb = st_renderbuffer(strb->Base.Wrapped);

+         assert(strb->surface);

+         pipe_surface_reference(&framebuffer->zsbuf, strb->surface);

+      }

+      else

+         pipe_surface_reference(&framebuffer->zsbuf, NULL);

+   }

+

+#ifdef DEBUG

+   /* Make sure the resource binding flags were set properly */

+   for (i = 0; i < framebuffer->nr_cbufs; i++) {

+      assert(framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);

+   }

+   if (framebuffer->zsbuf) {

+      assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);

+   }

+#endif

+

+   cso_set_framebuffer(st->cso_context, framebuffer);

+}

+

+

+const struct st_tracked_state st_update_framebuffer = {

+   "st_update_framebuffer",				/* name */

+   {							/* dirty */

+      _NEW_BUFFERS,					/* mesa */

+      ST_NEW_FRAMEBUFFER,				/* st */

+   },

+   update_framebuffer_state				/* update */

+};

+

diff --git a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c
index 0ea567155..51623c179 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c
@@ -1,893 +1,893 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
- /*
-  * Authors:
-  *   Brian Paul
-  */
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/bufferobj.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "program/program.h"
-#include "program/prog_print.h"
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_atom_constbuf.h"
-#include "st_program.h"
-#include "st_cb_bitmap.h"
-#include "st_texture.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_shader_tokens.h"
-#include "util/u_inlines.h"
-#include "util/u_draw_quad.h"
-#include "util/u_simple_shaders.h"
-#include "program/prog_instruction.h"
-#include "cso_cache/cso_context.h"
-
-
-#if FEATURE_drawpix
-
-/**
- * glBitmaps are drawn as textured quads.  The user's bitmap pattern
- * is stored in a texture image.  An alpha8 texture format is used.
- * The fragment shader samples a bit (texel) from the texture, then
- * discards the fragment if the bit is off.
- *
- * Note that we actually store the inverse image of the bitmap to
- * simplify the fragment program.  An "on" bit gets stored as texel=0x0
- * and an "off" bit is stored as texel=0xff.  Then we kill the
- * fragment if the negated texel value is less than zero.
- */
-
-
-/**
- * The bitmap cache attempts to accumulate multiple glBitmap calls in a
- * buffer which is then rendered en mass upon a flush, state change, etc.
- * A wide, short buffer is used to target the common case of a series
- * of glBitmap calls being used to draw text.
- */
-static GLboolean UseBitmapCache = GL_TRUE;
-
-
-#define BITMAP_CACHE_WIDTH  512
-#define BITMAP_CACHE_HEIGHT 32
-
-struct bitmap_cache
-{
-   /** Window pos to render the cached image */
-   GLint xpos, ypos;
-   /** Bounds of region used in window coords */
-   GLint xmin, ymin, xmax, ymax;
-
-   GLfloat color[4];
-
-   /** Bitmap's Z position */
-   GLfloat zpos;
-
-   struct pipe_resource *texture;
-   struct pipe_transfer *trans;
-
-   GLboolean empty;
-
-   /** An I8 texture image: */
-   ubyte *buffer;
-};
-
-
-/** Epsilon for Z comparisons */
-#define Z_EPSILON 1e-06
-
-
-/**
- * Make fragment program for glBitmap:
- *   Sample the texture and kill the fragment if the bit is 0.
- * This program will be combined with the user's fragment program.
- */
-static struct st_fragment_program *
-make_bitmap_fragment_program(struct gl_context *ctx, GLuint samplerIndex)
-{
-   struct st_context *st = st_context(ctx);
-   struct st_fragment_program *stfp;
-   struct gl_program *p;
-   GLuint ic = 0;
-
-   p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
-   if (!p)
-      return NULL;
-
-   p->NumInstructions = 3;
-
-   p->Instructions = _mesa_alloc_instructions(p->NumInstructions);
-   if (!p->Instructions) {
-      ctx->Driver.DeleteProgram(ctx, p);
-      return NULL;
-   }
-   _mesa_init_instructions(p->Instructions, p->NumInstructions);
-
-   /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */
-   p->Instructions[ic].Opcode = OPCODE_TEX;
-   p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY;
-   p->Instructions[ic].DstReg.Index = 0;
-   p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
-   p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
-   p->Instructions[ic].TexSrcUnit = samplerIndex;
-   p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
-   ic++;
-
-   /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */
-   p->Instructions[ic].Opcode = OPCODE_KIL;
-   p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
-
-   if (st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM)
-      p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX;
-
-   p->Instructions[ic].SrcReg[0].Index = 0;
-   p->Instructions[ic].SrcReg[0].Negate = NEGATE_XYZW;
-   ic++;
-
-   /* END; */
-   p->Instructions[ic++].Opcode = OPCODE_END;
-
-   assert(ic == p->NumInstructions);
-
-   p->InputsRead = FRAG_BIT_TEX0;
-   p->OutputsWritten = 0x0;
-   p->SamplersUsed = (1 << samplerIndex);
-
-   stfp = (struct st_fragment_program *) p;
-   stfp->Base.UsesKill = GL_TRUE;
-
-   return stfp;
-}
-
-
-static int
-find_free_bit(uint bitfield)
-{
-   int i;
-   for (i = 0; i < 32; i++) {
-      if ((bitfield & (1 << i)) == 0) {
-         return i;
-      }
-   }
-   return -1;
-}
-
-
-/**
- * Combine basic bitmap fragment program with the user-defined program.
- * \param st  current context
- * \param fpIn  the incoming fragment program
- * \param fpOut  the new fragment program which does fragment culling
- * \param bitmap_sampler  sampler number for the bitmap texture
- */
-void
-st_make_bitmap_fragment_program(struct st_context *st,
-                                struct gl_fragment_program *fpIn,
-                                struct gl_fragment_program **fpOut,
-                                GLuint *bitmap_sampler)
-{
-   struct st_fragment_program *bitmap_prog;
-   struct gl_program *newProg;
-   uint sampler;
-
-   /*
-    * Generate new program which is the user-defined program prefixed
-    * with the bitmap sampler/kill instructions.
-    */
-   sampler = find_free_bit(fpIn->Base.SamplersUsed);
-   bitmap_prog = make_bitmap_fragment_program(st->ctx, sampler);
-
-   newProg = _mesa_combine_programs(st->ctx,
-                                    &bitmap_prog->Base.Base,
-                                    &fpIn->Base);
-   /* done with this after combining */
-   st_reference_fragprog(st, &bitmap_prog, NULL);
-
-#if 0
-   {
-      printf("Combined bitmap program:\n");
-      _mesa_print_program(newProg);
-      printf("InputsRead: 0x%x\n", newProg->InputsRead);
-      printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);
-      _mesa_print_parameter_list(newProg->Parameters);
-   }
-#endif
-
-   /* return results */
-   *fpOut = (struct gl_fragment_program *) newProg;
-   *bitmap_sampler = sampler;
-}
-
-
-/**
- * Copy user-provide bitmap bits into texture buffer, expanding
- * bits into texels.
- * "On" bits will set texels to 0x0.
- * "Off" bits will not modify texels.
- * Note that the image is actually going to be upside down in
- * the texture.  We deal with that with texcoords.
- */
-static void
-unpack_bitmap(struct st_context *st,
-              GLint px, GLint py, GLsizei width, GLsizei height,
-              const struct gl_pixelstore_attrib *unpack,
-              const GLubyte *bitmap,
-              ubyte *destBuffer, uint destStride)
-{
-   destBuffer += py * destStride + px;
-
-   _mesa_expand_bitmap(width, height, unpack, bitmap,
-                       destBuffer, destStride, 0x0);
-}
-
-
-/**
- * Create a texture which represents a bitmap image.
- */
-static struct pipe_resource *
-make_bitmap_texture(struct gl_context *ctx, GLsizei width, GLsizei height,
-                    const struct gl_pixelstore_attrib *unpack,
-                    const GLubyte *bitmap)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_transfer *transfer;
-   ubyte *dest;
-   struct pipe_resource *pt;
-
-   /* PBO source... */
-   bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap);
-   if (!bitmap) {
-      return NULL;
-   }
-
-   /**
-    * Create texture to hold bitmap pattern.
-    */
-   pt = st_texture_create(st, st->internal_target, st->bitmap.tex_format,
-                          0, width, height, 1, 1,
-                          PIPE_BIND_SAMPLER_VIEW);
-   if (!pt) {
-      _mesa_unmap_pbo_source(ctx, unpack);
-      return NULL;
-   }
-
-   transfer = pipe_get_transfer(st->pipe, pt, 0, 0,
-                                PIPE_TRANSFER_WRITE,
-                                0, 0, width, height);
-
-   dest = pipe_transfer_map(pipe, transfer);
-
-   /* Put image into texture transfer */
-   memset(dest, 0xff, height * transfer->stride);
-   unpack_bitmap(st, 0, 0, width, height, unpack, bitmap,
-                 dest, transfer->stride);
-
-   _mesa_unmap_pbo_source(ctx, unpack);
-
-   /* Release transfer */
-   pipe_transfer_unmap(pipe, transfer);
-   pipe->transfer_destroy(pipe, transfer);
-
-   return pt;
-}
-
-static GLuint
-setup_bitmap_vertex_data(struct st_context *st, bool normalized,
-                         int x, int y, int width, int height,
-                         float z, const float color[4])
-{
-   struct pipe_context *pipe = st->pipe;
-   const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-   const GLfloat fb_width = (GLfloat)fb->Width;
-   const GLfloat fb_height = (GLfloat)fb->Height;
-   const GLfloat x0 = (GLfloat)x;
-   const GLfloat x1 = (GLfloat)(x + width);
-   const GLfloat y0 = (GLfloat)y;
-   const GLfloat y1 = (GLfloat)(y + height);
-   GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0;
-   GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop;
-   const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0);
-   const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);
-   const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0);
-   const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0);
-   const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */
-   GLuint i;
-
-   if(!normalized)
-   {
-      sRight = width;
-      tBot = height;
-   }
-
-   /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as
-    * no_flush) updates to buffers where we know there is no conflict
-    * with previous data.  Currently using max_slots > 1 will cause
-    * synchronous rendering if the driver flushes its command buffers
-    * between one bitmap and the next.  Our flush hook below isn't
-    * sufficient to catch this as the driver doesn't tell us when it
-    * flushes its own command buffers.  Until this gets fixed, pay the
-    * price of allocating a new buffer for each bitmap cache-flush to
-    * avoid synchronous rendering.
-    */
-   if (st->bitmap.vbuf_slot >= max_slots) {
-      pipe_resource_reference(&st->bitmap.vbuf, NULL);
-      st->bitmap.vbuf_slot = 0;
-   }
-
-   if (!st->bitmap.vbuf) {
-      st->bitmap.vbuf = pipe_buffer_create(pipe->screen, 
-                                           PIPE_BIND_VERTEX_BUFFER,
-                                           PIPE_USAGE_STREAM,
-                                           max_slots *
-                                           sizeof(st->bitmap.vertices));
-   }
-
-   /* Positions are in clip coords since we need to do clipping in case
-    * the bitmap quad goes beyond the window bounds.
-    */
-   st->bitmap.vertices[0][0][0] = clip_x0;
-   st->bitmap.vertices[0][0][1] = clip_y0;
-   st->bitmap.vertices[0][2][0] = sLeft;
-   st->bitmap.vertices[0][2][1] = tTop;
-
-   st->bitmap.vertices[1][0][0] = clip_x1;
-   st->bitmap.vertices[1][0][1] = clip_y0;
-   st->bitmap.vertices[1][2][0] = sRight;
-   st->bitmap.vertices[1][2][1] = tTop;
-   
-   st->bitmap.vertices[2][0][0] = clip_x1;
-   st->bitmap.vertices[2][0][1] = clip_y1;
-   st->bitmap.vertices[2][2][0] = sRight;
-   st->bitmap.vertices[2][2][1] = tBot;
-   
-   st->bitmap.vertices[3][0][0] = clip_x0;
-   st->bitmap.vertices[3][0][1] = clip_y1;
-   st->bitmap.vertices[3][2][0] = sLeft;
-   st->bitmap.vertices[3][2][1] = tBot;
-   
-   /* same for all verts: */
-   for (i = 0; i < 4; i++) {
-      st->bitmap.vertices[i][0][2] = z;
-      st->bitmap.vertices[i][0][3] = 1.0;
-      st->bitmap.vertices[i][1][0] = color[0];
-      st->bitmap.vertices[i][1][1] = color[1];
-      st->bitmap.vertices[i][1][2] = color[2];
-      st->bitmap.vertices[i][1][3] = color[3];
-      st->bitmap.vertices[i][2][2] = 0.0; /*R*/
-      st->bitmap.vertices[i][2][3] = 1.0; /*Q*/
-   }
-
-   /* put vertex data into vbuf */
-   pipe_buffer_write_nooverlap(st->pipe,
-                               st->bitmap.vbuf,
-                               st->bitmap.vbuf_slot
-                               * sizeof(st->bitmap.vertices),
-                               sizeof st->bitmap.vertices,
-                               st->bitmap.vertices);
-
-   return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices;
-}
-
-
-
-/**
- * Render a glBitmap by drawing a textured quad
- */
-static void
-draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
-                 GLsizei width, GLsizei height,
-                 struct pipe_sampler_view *sv,
-                 const GLfloat *color)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct cso_context *cso = st->cso_context;
-   struct st_fp_variant *fpv;
-   struct st_fp_variant_key key;
-   GLuint maxSize;
-   GLuint offset;
-
-   memset(&key, 0, sizeof(key));
-   key.st = st;
-   key.bitmap = GL_TRUE;
-
-   fpv = st_get_fp_variant(st, st->fp, &key);
-
-   /* As an optimization, Mesa's fragment programs will sometimes get the
-    * primary color from a statevar/constant rather than a varying variable.
-    * when that's the case, we need to ensure that we use the 'color'
-    * parameter and not the current attribute color (which may have changed
-    * through glRasterPos and state validation.
-    * So, we force the proper color here.  Not elegant, but it works.
-    */
-   {
-      GLfloat colorSave[4];
-      COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]);
-      COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color);
-      st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
-      COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave);
-   }
-
-
-   /* limit checks */
-   /* XXX if the bitmap is larger than the max texture size, break
-    * it up into chunks.
-    */
-   maxSize = 1 << (pipe->screen->get_param(pipe->screen,
-                                    PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
-   assert(width <= (GLsizei)maxSize);
-   assert(height <= (GLsizei)maxSize);
-
-   cso_save_rasterizer(cso);
-   cso_save_samplers(cso);
-   cso_save_fragment_sampler_views(cso);
-   cso_save_viewport(cso);
-   cso_save_fragment_shader(cso);
-   cso_save_vertex_shader(cso);
-   cso_save_vertex_elements(cso);
-   cso_save_vertex_buffers(cso);
-
-   /* rasterizer state: just scissor */
-   st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled;
-   cso_set_rasterizer(cso, &st->bitmap.rasterizer);
-
-   /* fragment shader state: TEX lookup program */
-   cso_set_fragment_shader_handle(cso, fpv->driver_shader);
-
-   /* vertex shader state: position + texcoord pass-through */
-   cso_set_vertex_shader_handle(cso, st->bitmap.vs);
-
-   /* user samplers, plus our bitmap sampler */
-   {
-      struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
-      uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_samplers);
-      uint i;
-      for (i = 0; i < st->state.num_samplers; i++) {
-         samplers[i] = &st->state.samplers[i];
-      }
-      samplers[fpv->bitmap_sampler] =
-         &st->bitmap.samplers[sv->texture->target != PIPE_TEXTURE_RECT];
-      cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers);
-   }
-
-   /* user textures, plus the bitmap texture */
-   {
-      struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];
-      uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_textures);
-      memcpy(sampler_views, st->state.sampler_views, sizeof(sampler_views));
-      sampler_views[fpv->bitmap_sampler] = sv;
-      cso_set_fragment_sampler_views(cso, num, sampler_views);
-   }
-
-   /* viewport state: viewport matching window dims */
-   {
-      const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-      const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
-      const GLfloat width = (GLfloat)fb->Width;
-      const GLfloat height = (GLfloat)fb->Height;
-      struct pipe_viewport_state vp;
-      vp.scale[0] =  0.5f * width;
-      vp.scale[1] = height * (invert ? -0.5f : 0.5f);
-      vp.scale[2] = 0.5f;
-      vp.scale[3] = 1.0f;
-      vp.translate[0] = 0.5f * width;
-      vp.translate[1] = 0.5f * height;
-      vp.translate[2] = 0.5f;
-      vp.translate[3] = 0.0f;
-      cso_set_viewport(cso, &vp);
-   }
-
-   cso_set_vertex_elements(cso, 3, st->velems_util_draw);
-
-   /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
-   z = z * 2.0 - 1.0;
-
-   /* draw textured quad */
-   offset = setup_bitmap_vertex_data(st,
-                                     sv->texture->target != PIPE_TEXTURE_RECT,
-                                     x, y, width, height, z, color);
-
-   util_draw_vertex_buffer(pipe, st->cso_context, st->bitmap.vbuf, offset,
-                           PIPE_PRIM_TRIANGLE_FAN,
-                           4,  /* verts */
-                           3); /* attribs/vert */
-
-
-   /* restore state */
-   cso_restore_rasterizer(cso);
-   cso_restore_samplers(cso);
-   cso_restore_fragment_sampler_views(cso);
-   cso_restore_viewport(cso);
-   cso_restore_fragment_shader(cso);
-   cso_restore_vertex_shader(cso);
-   cso_restore_vertex_elements(cso);
-   cso_restore_vertex_buffers(cso);
-}
-
-
-static void
-reset_cache(struct st_context *st)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct bitmap_cache *cache = st->bitmap.cache;
-
-   /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/
-   cache->empty = GL_TRUE;
-
-   cache->xmin = 1000000;
-   cache->xmax = -1000000;
-   cache->ymin = 1000000;
-   cache->ymax = -1000000;
-
-   if (cache->trans) {
-      pipe->transfer_destroy(pipe, cache->trans);
-      cache->trans = NULL;
-   }
-
-   assert(!cache->texture);
-
-   /* allocate a new texture */
-   cache->texture = st_texture_create(st, PIPE_TEXTURE_2D,
-                                      st->bitmap.tex_format, 0,
-                                      BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT,
-                                      1, 1,
-				      PIPE_BIND_SAMPLER_VIEW);
-}
-
-
-/** Print bitmap image to stdout (debug) */
-static void
-print_cache(const struct bitmap_cache *cache)
-{
-   int i, j, k;
-
-   for (i = 0; i < BITMAP_CACHE_HEIGHT; i++) {
-      k = BITMAP_CACHE_WIDTH * (BITMAP_CACHE_HEIGHT - i - 1);
-      for (j = 0; j < BITMAP_CACHE_WIDTH; j++) {
-         if (cache->buffer[k])
-            printf("X");
-         else
-            printf(" ");
-         k++;
-      }
-      printf("\n");
-   }
-}
-
-
-/**
- * Create gallium pipe_transfer object for the bitmap cache.
- */
-static void
-create_cache_trans(struct st_context *st)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct bitmap_cache *cache = st->bitmap.cache;
-
-   if (cache->trans)
-      return;
-
-   /* Map the texture transfer.
-    * Subsequent glBitmap calls will write into the texture image.
-    */
-   cache->trans = pipe_get_transfer(st->pipe, cache->texture, 0, 0,
-                                    PIPE_TRANSFER_WRITE, 0, 0,
-                                    BITMAP_CACHE_WIDTH,
-                                    BITMAP_CACHE_HEIGHT);
-   cache->buffer = pipe_transfer_map(pipe, cache->trans);
-
-   /* init image to all 0xff */
-   memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT);
-}
-
-
-/**
- * If there's anything in the bitmap cache, draw/flush it now.
- */
-void
-st_flush_bitmap_cache(struct st_context *st)
-{
-   if (!st->bitmap.cache->empty) {
-      struct bitmap_cache *cache = st->bitmap.cache;
-
-      if (st->ctx->DrawBuffer) {
-         struct pipe_context *pipe = st->pipe;
-         struct pipe_sampler_view *sv;
-
-         assert(cache->xmin <= cache->xmax);
- 
-/*         printf("flush size %d x %d  at %d, %d\n",
-                cache->xmax - cache->xmin,
-                cache->ymax - cache->ymin,
-                cache->xpos, cache->ypos);
-*/
-
-         /* The texture transfer has been mapped until now.
-          * So unmap and release the texture transfer before drawing.
-          */
-         if (cache->trans) {
-            if (0)
-               print_cache(cache);
-            pipe_transfer_unmap(pipe, cache->trans);
-            cache->buffer = NULL;
-
-            pipe->transfer_destroy(pipe, cache->trans);
-            cache->trans = NULL;
-         }
-
-         sv = st_create_texture_sampler_view(st->pipe, cache->texture);
-         if (sv) {
-            draw_bitmap_quad(st->ctx,
-                             cache->xpos,
-                             cache->ypos,
-                             cache->zpos,
-                             BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT,
-                             sv,
-                             cache->color);
-
-            pipe_sampler_view_reference(&sv, NULL);
-         }
-      }
-
-      /* release/free the texture */
-      pipe_resource_reference(&cache->texture, NULL);
-
-      reset_cache(st);
-   }
-}
-
-
-/**
- * Flush bitmap cache and release vertex buffer.
- */
-void
-st_flush_bitmap( struct st_context *st )
-{
-   st_flush_bitmap_cache(st);
-
-   /* Release vertex buffer to avoid synchronous rendering if we were
-    * to map it in the next frame.
-    */
-   pipe_resource_reference(&st->bitmap.vbuf, NULL);
-   st->bitmap.vbuf_slot = 0;
-}
-
-
-/**
- * Try to accumulate this glBitmap call in the bitmap cache.
- * \return  GL_TRUE for success, GL_FALSE if bitmap is too large, etc.
- */
-static GLboolean
-accum_bitmap(struct st_context *st,
-             GLint x, GLint y, GLsizei width, GLsizei height,
-             const struct gl_pixelstore_attrib *unpack,
-             const GLubyte *bitmap )
-{
-   struct bitmap_cache *cache = st->bitmap.cache;
-   int px = -999, py = -999;
-   const GLfloat z = st->ctx->Current.RasterPos[2];
-
-   if (width > BITMAP_CACHE_WIDTH ||
-       height > BITMAP_CACHE_HEIGHT)
-      return GL_FALSE; /* too big to cache */
-
-   if (!cache->empty) {
-      px = x - cache->xpos;  /* pos in buffer */
-      py = y - cache->ypos;
-      if (px < 0 || px + width > BITMAP_CACHE_WIDTH ||
-          py < 0 || py + height > BITMAP_CACHE_HEIGHT ||
-          !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color) ||
-          ((fabs(z - cache->zpos) > Z_EPSILON))) {
-         /* This bitmap would extend beyond cache bounds, or the bitmap
-          * color is changing
-          * so flush and continue.
-          */
-         st_flush_bitmap_cache(st);
-      }
-   }
-
-   if (cache->empty) {
-      /* Initialize.  Center bitmap vertically in the buffer. */
-      px = 0;
-      py = (BITMAP_CACHE_HEIGHT - height) / 2;
-      cache->xpos = x;
-      cache->ypos = y - py;
-      cache->zpos = z;
-      cache->empty = GL_FALSE;
-      COPY_4FV(cache->color, st->ctx->Current.RasterColor);
-   }
-
-   assert(px != -999);
-   assert(py != -999);
-
-   if (x < cache->xmin)
-      cache->xmin = x;
-   if (y < cache->ymin)
-      cache->ymin = y;
-   if (x + width > cache->xmax)
-      cache->xmax = x + width;
-   if (y + height > cache->ymax)
-      cache->ymax = y + height;
-
-   /* create the transfer if needed */
-   create_cache_trans(st);
-
-   unpack_bitmap(st, px, py, width, height, unpack, bitmap,
-                 cache->buffer, BITMAP_CACHE_WIDTH);
-
-   return GL_TRUE; /* accumulated */
-}
-
-
-
-/**
- * Called via ctx->Driver.Bitmap()
- */
-static void
-st_Bitmap(struct gl_context *ctx, GLint x, GLint y,
-          GLsizei width, GLsizei height,
-          const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap )
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_resource *pt;
-
-   if (width == 0 || height == 0)
-      return;
-
-   st_validate_state(st);
-
-   if (!st->bitmap.vs) {
-      /* create pass-through vertex shader now */
-      const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
-                                      TGSI_SEMANTIC_COLOR,
-                                      TGSI_SEMANTIC_GENERIC };
-      const uint semantic_indexes[] = { 0, 0, 0 };
-      st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3,
-                                                          semantic_names,
-                                                          semantic_indexes);
-   }
-
-   if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap))
-      return;
-
-   pt = make_bitmap_texture(ctx, width, height, unpack, bitmap);
-   if (pt) {
-      struct pipe_sampler_view *sv =
-         st_create_texture_sampler_view(st->pipe, pt);
-
-      assert(pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT);
-
-      if (sv) {
-         draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2],
-                          width, height, sv,
-                          st->ctx->Current.RasterColor);
-
-         pipe_sampler_view_reference(&sv, NULL);
-      }
-
-      /* release/free the texture */
-      pipe_resource_reference(&pt, NULL);
-   }
-}
-
-
-/** Per-context init */
-void
-st_init_bitmap_functions(struct dd_function_table *functions)
-{
-   functions->Bitmap = st_Bitmap;
-}
-
-
-/** Per-context init */
-void
-st_init_bitmap(struct st_context *st)
-{
-   struct pipe_sampler_state *sampler = &st->bitmap.samplers[0];
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_screen *screen = pipe->screen;
-
-   /* init sampler state once */
-   memset(sampler, 0, sizeof(*sampler));
-   sampler->wrap_s = PIPE_TEX_WRAP_CLAMP;
-   sampler->wrap_t = PIPE_TEX_WRAP_CLAMP;
-   sampler->wrap_r = PIPE_TEX_WRAP_CLAMP;
-   sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST;
-   sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
-   sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST;
-   st->bitmap.samplers[1] = *sampler;
-   st->bitmap.samplers[1].normalized_coords = 1;
-
-   /* init baseline rasterizer state once */
-   memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer));
-   st->bitmap.rasterizer.gl_rasterization_rules = 1;
-
-   /* find a usable texture format */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0)) {
-      st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM;
-   }
-   else if (screen->is_format_supported(screen, PIPE_FORMAT_A8_UNORM,
-                                        PIPE_TEXTURE_2D, 0,
-                                        PIPE_BIND_SAMPLER_VIEW, 0)) {
-      st->bitmap.tex_format = PIPE_FORMAT_A8_UNORM;
-   }
-   else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM,
-                                        PIPE_TEXTURE_2D, 0,
-                                        PIPE_BIND_SAMPLER_VIEW, 0)) {
-      st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM;
-   }
-   else {
-      /* XXX support more formats */
-      assert(0);
-   }
-
-   /* alloc bitmap cache object */
-   st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache);
-
-   reset_cache(st);
-}
-
-
-/** Per-context tear-down */
-void
-st_destroy_bitmap(struct st_context *st)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct bitmap_cache *cache = st->bitmap.cache;
-
-   if (st->bitmap.vs) {
-      cso_delete_vertex_shader(st->cso_context, st->bitmap.vs);
-      st->bitmap.vs = NULL;
-   }
-
-   if (st->bitmap.vbuf) {
-      pipe_resource_reference(&st->bitmap.vbuf, NULL);
-      st->bitmap.vbuf = NULL;
-   }
-
-   if (cache) {
-      if (cache->trans) {
-         pipe_transfer_unmap(pipe, cache->trans);
-         pipe->transfer_destroy(pipe, cache->trans);
-      }
-      pipe_resource_reference(&st->bitmap.cache->texture, NULL);
-      free(st->bitmap.cache);
-      st->bitmap.cache = NULL;
-   }
-}
-
-#endif /* FEATURE_drawpix */
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+ /*

+  * Authors:

+  *   Brian Paul

+  */

+

+#include "main/imports.h"

+#include "main/image.h"

+#include "main/bufferobj.h"

+#include "main/macros.h"

+#include "main/mfeatures.h"

+#include "program/program.h"

+#include "program/prog_print.h"

+

+#include "st_context.h"

+#include "st_atom.h"

+#include "st_atom_constbuf.h"

+#include "st_program.h"

+#include "st_cb_bitmap.h"

+#include "st_texture.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "pipe/p_shader_tokens.h"

+#include "util/u_inlines.h"

+#include "util/u_draw_quad.h"

+#include "util/u_simple_shaders.h"

+#include "program/prog_instruction.h"

+#include "cso_cache/cso_context.h"

+

+

+#if FEATURE_drawpix

+

+/**

+ * glBitmaps are drawn as textured quads.  The user's bitmap pattern

+ * is stored in a texture image.  An alpha8 texture format is used.

+ * The fragment shader samples a bit (texel) from the texture, then

+ * discards the fragment if the bit is off.

+ *

+ * Note that we actually store the inverse image of the bitmap to

+ * simplify the fragment program.  An "on" bit gets stored as texel=0x0

+ * and an "off" bit is stored as texel=0xff.  Then we kill the

+ * fragment if the negated texel value is less than zero.

+ */

+

+

+/**

+ * The bitmap cache attempts to accumulate multiple glBitmap calls in a

+ * buffer which is then rendered en mass upon a flush, state change, etc.

+ * A wide, short buffer is used to target the common case of a series

+ * of glBitmap calls being used to draw text.

+ */

+static GLboolean UseBitmapCache = GL_TRUE;

+

+

+#define BITMAP_CACHE_WIDTH  512

+#define BITMAP_CACHE_HEIGHT 32

+

+struct bitmap_cache

+{

+   /** Window pos to render the cached image */

+   GLint xpos, ypos;

+   /** Bounds of region used in window coords */

+   GLint xmin, ymin, xmax, ymax;

+

+   GLfloat color[4];

+

+   /** Bitmap's Z position */

+   GLfloat zpos;

+

+   struct pipe_resource *texture;

+   struct pipe_transfer *trans;

+

+   GLboolean empty;

+

+   /** An I8 texture image: */

+   ubyte *buffer;

+};

+

+

+/** Epsilon for Z comparisons */

+#define Z_EPSILON 1e-06

+

+

+/**

+ * Make fragment program for glBitmap:

+ *   Sample the texture and kill the fragment if the bit is 0.

+ * This program will be combined with the user's fragment program.

+ */

+static struct st_fragment_program *

+make_bitmap_fragment_program(struct gl_context *ctx, GLuint samplerIndex)

+{

+   struct st_context *st = st_context(ctx);

+   struct st_fragment_program *stfp;

+   struct gl_program *p;

+   GLuint ic = 0;

+

+   p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);

+   if (!p)

+      return NULL;

+

+   p->NumInstructions = 3;

+

+   p->Instructions = _mesa_alloc_instructions(p->NumInstructions);

+   if (!p->Instructions) {

+      ctx->Driver.DeleteProgram(ctx, p);

+      return NULL;

+   }

+   _mesa_init_instructions(p->Instructions, p->NumInstructions);

+

+   /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */

+   p->Instructions[ic].Opcode = OPCODE_TEX;

+   p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY;

+   p->Instructions[ic].DstReg.Index = 0;

+   p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;

+   p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;

+   p->Instructions[ic].TexSrcUnit = samplerIndex;

+   p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;

+   ic++;

+

+   /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */

+   p->Instructions[ic].Opcode = OPCODE_KIL;

+   p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY;

+

+   if (st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM)

+      p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX;

+

+   p->Instructions[ic].SrcReg[0].Index = 0;

+   p->Instructions[ic].SrcReg[0].Negate = NEGATE_XYZW;

+   ic++;

+

+   /* END; */

+   p->Instructions[ic++].Opcode = OPCODE_END;

+

+   assert(ic == p->NumInstructions);

+

+   p->InputsRead = FRAG_BIT_TEX0;

+   p->OutputsWritten = 0x0;

+   p->SamplersUsed = (1 << samplerIndex);

+

+   stfp = (struct st_fragment_program *) p;

+   stfp->Base.UsesKill = GL_TRUE;

+

+   return stfp;

+}

+

+

+static int

+find_free_bit(uint bitfield)

+{

+   int i;

+   for (i = 0; i < 32; i++) {

+      if ((bitfield & (1 << i)) == 0) {

+         return i;

+      }

+   }

+   return -1;

+}

+

+

+/**

+ * Combine basic bitmap fragment program with the user-defined program.

+ * \param st  current context

+ * \param fpIn  the incoming fragment program

+ * \param fpOut  the new fragment program which does fragment culling

+ * \param bitmap_sampler  sampler number for the bitmap texture

+ */

+void

+st_make_bitmap_fragment_program(struct st_context *st,

+                                struct gl_fragment_program *fpIn,

+                                struct gl_fragment_program **fpOut,

+                                GLuint *bitmap_sampler)

+{

+   struct st_fragment_program *bitmap_prog;

+   struct gl_program *newProg;

+   uint sampler;

+

+   /*

+    * Generate new program which is the user-defined program prefixed

+    * with the bitmap sampler/kill instructions.

+    */

+   sampler = find_free_bit(fpIn->Base.SamplersUsed);

+   bitmap_prog = make_bitmap_fragment_program(st->ctx, sampler);

+

+   newProg = _mesa_combine_programs(st->ctx,

+                                    &bitmap_prog->Base.Base,

+                                    &fpIn->Base);

+   /* done with this after combining */

+   st_reference_fragprog(st, &bitmap_prog, NULL);

+

+#if 0

+   {

+      printf("Combined bitmap program:\n");

+      _mesa_print_program(newProg);

+      printf("InputsRead: 0x%x\n", newProg->InputsRead);

+      printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);

+      _mesa_print_parameter_list(newProg->Parameters);

+   }

+#endif

+

+   /* return results */

+   *fpOut = (struct gl_fragment_program *) newProg;

+   *bitmap_sampler = sampler;

+}

+

+

+/**

+ * Copy user-provide bitmap bits into texture buffer, expanding

+ * bits into texels.

+ * "On" bits will set texels to 0x0.

+ * "Off" bits will not modify texels.

+ * Note that the image is actually going to be upside down in

+ * the texture.  We deal with that with texcoords.

+ */

+static void

+unpack_bitmap(struct st_context *st,

+              GLint px, GLint py, GLsizei width, GLsizei height,

+              const struct gl_pixelstore_attrib *unpack,

+              const GLubyte *bitmap,

+              ubyte *destBuffer, uint destStride)

+{

+   destBuffer += py * destStride + px;

+

+   _mesa_expand_bitmap(width, height, unpack, bitmap,

+                       destBuffer, destStride, 0x0);

+}

+

+

+/**

+ * Create a texture which represents a bitmap image.

+ */

+static struct pipe_resource *

+make_bitmap_texture(struct gl_context *ctx, GLsizei width, GLsizei height,

+                    const struct gl_pixelstore_attrib *unpack,

+                    const GLubyte *bitmap)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_transfer *transfer;

+   ubyte *dest;

+   struct pipe_resource *pt;

+

+   /* PBO source... */

+   bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap);

+   if (!bitmap) {

+      return NULL;

+   }

+

+   /**

+    * Create texture to hold bitmap pattern.

+    */

+   pt = st_texture_create(st, st->internal_target, st->bitmap.tex_format,

+                          0, width, height, 1, 1,

+                          PIPE_BIND_SAMPLER_VIEW);

+   if (!pt) {

+      _mesa_unmap_pbo_source(ctx, unpack);

+      return NULL;

+   }

+

+   transfer = pipe_get_transfer(st->pipe, pt, 0, 0,

+                                PIPE_TRANSFER_WRITE,

+                                0, 0, width, height);

+

+   dest = pipe_transfer_map(pipe, transfer);

+

+   /* Put image into texture transfer */

+   memset(dest, 0xff, height * transfer->stride);

+   unpack_bitmap(st, 0, 0, width, height, unpack, bitmap,

+                 dest, transfer->stride);

+

+   _mesa_unmap_pbo_source(ctx, unpack);

+

+   /* Release transfer */

+   pipe_transfer_unmap(pipe, transfer);

+   pipe->transfer_destroy(pipe, transfer);

+

+   return pt;

+}

+

+static GLuint

+setup_bitmap_vertex_data(struct st_context *st, bool normalized,

+                         int x, int y, int width, int height,

+                         float z, const float color[4])

+{

+   struct pipe_context *pipe = st->pipe;

+   const struct gl_framebuffer *fb = st->ctx->DrawBuffer;

+   const GLfloat fb_width = (GLfloat)fb->Width;

+   const GLfloat fb_height = (GLfloat)fb->Height;

+   const GLfloat x0 = (GLfloat)x;

+   const GLfloat x1 = (GLfloat)(x + width);

+   const GLfloat y0 = (GLfloat)y;

+   const GLfloat y1 = (GLfloat)(y + height);

+   GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0;

+   GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop;

+   const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0);

+   const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);

+   const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0);

+   const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0);

+   const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */

+   GLuint i;

+

+   if(!normalized)

+   {

+      sRight = width;

+      tBot = height;

+   }

+

+   /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as

+    * no_flush) updates to buffers where we know there is no conflict

+    * with previous data.  Currently using max_slots > 1 will cause

+    * synchronous rendering if the driver flushes its command buffers

+    * between one bitmap and the next.  Our flush hook below isn't

+    * sufficient to catch this as the driver doesn't tell us when it

+    * flushes its own command buffers.  Until this gets fixed, pay the

+    * price of allocating a new buffer for each bitmap cache-flush to

+    * avoid synchronous rendering.

+    */

+   if (st->bitmap.vbuf_slot >= max_slots) {

+      pipe_resource_reference(&st->bitmap.vbuf, NULL);

+      st->bitmap.vbuf_slot = 0;

+   }

+

+   if (!st->bitmap.vbuf) {

+      st->bitmap.vbuf = pipe_buffer_create(pipe->screen, 

+                                           PIPE_BIND_VERTEX_BUFFER,

+                                           PIPE_USAGE_STREAM,

+                                           max_slots *

+                                           sizeof(st->bitmap.vertices));

+   }

+

+   /* Positions are in clip coords since we need to do clipping in case

+    * the bitmap quad goes beyond the window bounds.

+    */

+   st->bitmap.vertices[0][0][0] = clip_x0;

+   st->bitmap.vertices[0][0][1] = clip_y0;

+   st->bitmap.vertices[0][2][0] = sLeft;

+   st->bitmap.vertices[0][2][1] = tTop;

+

+   st->bitmap.vertices[1][0][0] = clip_x1;

+   st->bitmap.vertices[1][0][1] = clip_y0;

+   st->bitmap.vertices[1][2][0] = sRight;

+   st->bitmap.vertices[1][2][1] = tTop;

+   

+   st->bitmap.vertices[2][0][0] = clip_x1;

+   st->bitmap.vertices[2][0][1] = clip_y1;

+   st->bitmap.vertices[2][2][0] = sRight;

+   st->bitmap.vertices[2][2][1] = tBot;

+   

+   st->bitmap.vertices[3][0][0] = clip_x0;

+   st->bitmap.vertices[3][0][1] = clip_y1;

+   st->bitmap.vertices[3][2][0] = sLeft;

+   st->bitmap.vertices[3][2][1] = tBot;

+   

+   /* same for all verts: */

+   for (i = 0; i < 4; i++) {

+      st->bitmap.vertices[i][0][2] = z;

+      st->bitmap.vertices[i][0][3] = 1.0;

+      st->bitmap.vertices[i][1][0] = color[0];

+      st->bitmap.vertices[i][1][1] = color[1];

+      st->bitmap.vertices[i][1][2] = color[2];

+      st->bitmap.vertices[i][1][3] = color[3];

+      st->bitmap.vertices[i][2][2] = 0.0; /*R*/

+      st->bitmap.vertices[i][2][3] = 1.0; /*Q*/

+   }

+

+   /* put vertex data into vbuf */

+   pipe_buffer_write_nooverlap(st->pipe,

+                               st->bitmap.vbuf,

+                               st->bitmap.vbuf_slot

+                               * sizeof(st->bitmap.vertices),

+                               sizeof st->bitmap.vertices,

+                               st->bitmap.vertices);

+

+   return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices;

+}

+

+

+

+/**

+ * Render a glBitmap by drawing a textured quad

+ */

+static void

+draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,

+                 GLsizei width, GLsizei height,

+                 struct pipe_sampler_view *sv,

+                 const GLfloat *color)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct cso_context *cso = st->cso_context;

+   struct st_fp_variant *fpv;

+   struct st_fp_variant_key key;

+   GLuint maxSize;

+   GLuint offset;

+

+   memset(&key, 0, sizeof(key));

+   key.st = st;

+   key.bitmap = GL_TRUE;

+

+   fpv = st_get_fp_variant(st, st->fp, &key);

+

+   /* As an optimization, Mesa's fragment programs will sometimes get the

+    * primary color from a statevar/constant rather than a varying variable.

+    * when that's the case, we need to ensure that we use the 'color'

+    * parameter and not the current attribute color (which may have changed

+    * through glRasterPos and state validation.

+    * So, we force the proper color here.  Not elegant, but it works.

+    */

+   {

+      GLfloat colorSave[4];

+      COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]);

+      COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color);

+      st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);

+      COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave);

+   }

+

+

+   /* limit checks */

+   /* XXX if the bitmap is larger than the max texture size, break

+    * it up into chunks.

+    */

+   maxSize = 1 << (pipe->screen->get_param(pipe->screen,

+                                    PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);

+   assert(width <= (GLsizei)maxSize);

+   assert(height <= (GLsizei)maxSize);

+

+   cso_save_rasterizer(cso);

+   cso_save_samplers(cso);

+   cso_save_fragment_sampler_views(cso);

+   cso_save_viewport(cso);

+   cso_save_fragment_shader(cso);

+   cso_save_vertex_shader(cso);

+   cso_save_vertex_elements(cso);

+   cso_save_vertex_buffers(cso);

+

+   /* rasterizer state: just scissor */

+   st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled;

+   cso_set_rasterizer(cso, &st->bitmap.rasterizer);

+

+   /* fragment shader state: TEX lookup program */

+   cso_set_fragment_shader_handle(cso, fpv->driver_shader);

+

+   /* vertex shader state: position + texcoord pass-through */

+   cso_set_vertex_shader_handle(cso, st->bitmap.vs);

+

+   /* user samplers, plus our bitmap sampler */

+   {

+      struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];

+      uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_samplers);

+      uint i;

+      for (i = 0; i < st->state.num_samplers; i++) {

+         samplers[i] = &st->state.samplers[i];

+      }

+      samplers[fpv->bitmap_sampler] =

+         &st->bitmap.samplers[sv->texture->target != PIPE_TEXTURE_RECT];

+      cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers);

+   }

+

+   /* user textures, plus the bitmap texture */

+   {

+      struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];

+      uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_textures);

+      memcpy(sampler_views, st->state.sampler_views, sizeof(sampler_views));

+      sampler_views[fpv->bitmap_sampler] = sv;

+      cso_set_fragment_sampler_views(cso, num, sampler_views);

+   }

+

+   /* viewport state: viewport matching window dims */

+   {

+      const struct gl_framebuffer *fb = st->ctx->DrawBuffer;

+      const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);

+      const GLfloat width = (GLfloat)fb->Width;

+      const GLfloat height = (GLfloat)fb->Height;

+      struct pipe_viewport_state vp;

+      vp.scale[0] =  0.5f * width;

+      vp.scale[1] = height * (invert ? -0.5f : 0.5f);

+      vp.scale[2] = 0.5f;

+      vp.scale[3] = 1.0f;

+      vp.translate[0] = 0.5f * width;

+      vp.translate[1] = 0.5f * height;

+      vp.translate[2] = 0.5f;

+      vp.translate[3] = 0.0f;

+      cso_set_viewport(cso, &vp);

+   }

+

+   cso_set_vertex_elements(cso, 3, st->velems_util_draw);

+

+   /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */

+   z = z * 2.0 - 1.0;

+

+   /* draw textured quad */

+   offset = setup_bitmap_vertex_data(st,

+                                     sv->texture->target != PIPE_TEXTURE_RECT,

+                                     x, y, width, height, z, color);

+

+   util_draw_vertex_buffer(pipe, st->cso_context, st->bitmap.vbuf, offset,

+                           PIPE_PRIM_TRIANGLE_FAN,

+                           4,  /* verts */

+                           3); /* attribs/vert */

+

+

+   /* restore state */

+   cso_restore_rasterizer(cso);

+   cso_restore_samplers(cso);

+   cso_restore_fragment_sampler_views(cso);

+   cso_restore_viewport(cso);

+   cso_restore_fragment_shader(cso);

+   cso_restore_vertex_shader(cso);

+   cso_restore_vertex_elements(cso);

+   cso_restore_vertex_buffers(cso);

+}

+

+

+static void

+reset_cache(struct st_context *st)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct bitmap_cache *cache = st->bitmap.cache;

+

+   /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/

+   cache->empty = GL_TRUE;

+

+   cache->xmin = 1000000;

+   cache->xmax = -1000000;

+   cache->ymin = 1000000;

+   cache->ymax = -1000000;

+

+   if (cache->trans) {

+      pipe->transfer_destroy(pipe, cache->trans);

+      cache->trans = NULL;

+   }

+

+   assert(!cache->texture);

+

+   /* allocate a new texture */

+   cache->texture = st_texture_create(st, PIPE_TEXTURE_2D,

+                                      st->bitmap.tex_format, 0,

+                                      BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT,

+                                      1, 1,

+				      PIPE_BIND_SAMPLER_VIEW);

+}

+

+

+/** Print bitmap image to stdout (debug) */

+static void

+print_cache(const struct bitmap_cache *cache)

+{

+   int i, j, k;

+

+   for (i = 0; i < BITMAP_CACHE_HEIGHT; i++) {

+      k = BITMAP_CACHE_WIDTH * (BITMAP_CACHE_HEIGHT - i - 1);

+      for (j = 0; j < BITMAP_CACHE_WIDTH; j++) {

+         if (cache->buffer[k])

+            printf("X");

+         else

+            printf(" ");

+         k++;

+      }

+      printf("\n");

+   }

+}

+

+

+/**

+ * Create gallium pipe_transfer object for the bitmap cache.

+ */

+static void

+create_cache_trans(struct st_context *st)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct bitmap_cache *cache = st->bitmap.cache;

+

+   if (cache->trans)

+      return;

+

+   /* Map the texture transfer.

+    * Subsequent glBitmap calls will write into the texture image.

+    */

+   cache->trans = pipe_get_transfer(st->pipe, cache->texture, 0, 0,

+                                    PIPE_TRANSFER_WRITE, 0, 0,

+                                    BITMAP_CACHE_WIDTH,

+                                    BITMAP_CACHE_HEIGHT);

+   cache->buffer = pipe_transfer_map(pipe, cache->trans);

+

+   /* init image to all 0xff */

+   memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT);

+}

+

+

+/**

+ * If there's anything in the bitmap cache, draw/flush it now.

+ */

+void

+st_flush_bitmap_cache(struct st_context *st)

+{

+   if (!st->bitmap.cache->empty) {

+      struct bitmap_cache *cache = st->bitmap.cache;

+

+      if (st->ctx->DrawBuffer) {

+         struct pipe_context *pipe = st->pipe;

+         struct pipe_sampler_view *sv;

+

+         assert(cache->xmin <= cache->xmax);

+ 

+/*         printf("flush size %d x %d  at %d, %d\n",

+                cache->xmax - cache->xmin,

+                cache->ymax - cache->ymin,

+                cache->xpos, cache->ypos);

+*/

+

+         /* The texture transfer has been mapped until now.

+          * So unmap and release the texture transfer before drawing.

+          */

+         if (cache->trans) {

+            if (0)

+               print_cache(cache);

+            pipe_transfer_unmap(pipe, cache->trans);

+            cache->buffer = NULL;

+

+            pipe->transfer_destroy(pipe, cache->trans);

+            cache->trans = NULL;

+         }

+

+         sv = st_create_texture_sampler_view(st->pipe, cache->texture);

+         if (sv) {

+            draw_bitmap_quad(st->ctx,

+                             cache->xpos,

+                             cache->ypos,

+                             cache->zpos,

+                             BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT,

+                             sv,

+                             cache->color);

+

+            pipe_sampler_view_reference(&sv, NULL);

+         }

+      }

+

+      /* release/free the texture */

+      pipe_resource_reference(&cache->texture, NULL);

+

+      reset_cache(st);

+   }

+}

+

+

+/**

+ * Flush bitmap cache and release vertex buffer.

+ */

+void

+st_flush_bitmap( struct st_context *st )

+{

+   st_flush_bitmap_cache(st);

+

+   /* Release vertex buffer to avoid synchronous rendering if we were

+    * to map it in the next frame.

+    */

+   pipe_resource_reference(&st->bitmap.vbuf, NULL);

+   st->bitmap.vbuf_slot = 0;

+}

+

+

+/**

+ * Try to accumulate this glBitmap call in the bitmap cache.

+ * \return  GL_TRUE for success, GL_FALSE if bitmap is too large, etc.

+ */

+static GLboolean

+accum_bitmap(struct st_context *st,

+             GLint x, GLint y, GLsizei width, GLsizei height,

+             const struct gl_pixelstore_attrib *unpack,

+             const GLubyte *bitmap )

+{

+   struct bitmap_cache *cache = st->bitmap.cache;

+   int px = -999, py = -999;

+   const GLfloat z = st->ctx->Current.RasterPos[2];

+

+   if (width > BITMAP_CACHE_WIDTH ||

+       height > BITMAP_CACHE_HEIGHT)

+      return GL_FALSE; /* too big to cache */

+

+   if (!cache->empty) {

+      px = x - cache->xpos;  /* pos in buffer */

+      py = y - cache->ypos;

+      if (px < 0 || px + width > BITMAP_CACHE_WIDTH ||

+          py < 0 || py + height > BITMAP_CACHE_HEIGHT ||

+          !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color) ||

+          ((fabs(z - cache->zpos) > Z_EPSILON))) {

+         /* This bitmap would extend beyond cache bounds, or the bitmap

+          * color is changing

+          * so flush and continue.

+          */

+         st_flush_bitmap_cache(st);

+      }

+   }

+

+   if (cache->empty) {

+      /* Initialize.  Center bitmap vertically in the buffer. */

+      px = 0;

+      py = (BITMAP_CACHE_HEIGHT - height) / 2;

+      cache->xpos = x;

+      cache->ypos = y - py;

+      cache->zpos = z;

+      cache->empty = GL_FALSE;

+      COPY_4FV(cache->color, st->ctx->Current.RasterColor);

+   }

+

+   assert(px != -999);

+   assert(py != -999);

+

+   if (x < cache->xmin)

+      cache->xmin = x;

+   if (y < cache->ymin)

+      cache->ymin = y;

+   if (x + width > cache->xmax)

+      cache->xmax = x + width;

+   if (y + height > cache->ymax)

+      cache->ymax = y + height;

+

+   /* create the transfer if needed */

+   create_cache_trans(st);

+

+   unpack_bitmap(st, px, py, width, height, unpack, bitmap,

+                 cache->buffer, BITMAP_CACHE_WIDTH);

+

+   return GL_TRUE; /* accumulated */

+}

+

+

+

+/**

+ * Called via ctx->Driver.Bitmap()

+ */

+static void

+st_Bitmap(struct gl_context *ctx, GLint x, GLint y,

+          GLsizei width, GLsizei height,

+          const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap )

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_resource *pt;

+

+   if (width == 0 || height == 0)

+      return;

+

+   st_validate_state(st);

+

+   if (!st->bitmap.vs) {

+      /* create pass-through vertex shader now */

+      const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,

+                                      TGSI_SEMANTIC_COLOR,

+                                      TGSI_SEMANTIC_GENERIC };

+      const uint semantic_indexes[] = { 0, 0, 0 };

+      st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3,

+                                                          semantic_names,

+                                                          semantic_indexes);

+   }

+

+   if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap))

+      return;

+

+   pt = make_bitmap_texture(ctx, width, height, unpack, bitmap);

+   if (pt) {

+      struct pipe_sampler_view *sv =

+         st_create_texture_sampler_view(st->pipe, pt);

+

+      assert(pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT);

+

+      if (sv) {

+         draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2],

+                          width, height, sv,

+                          st->ctx->Current.RasterColor);

+

+         pipe_sampler_view_reference(&sv, NULL);

+      }

+

+      /* release/free the texture */

+      pipe_resource_reference(&pt, NULL);

+   }

+}

+

+

+/** Per-context init */

+void

+st_init_bitmap_functions(struct dd_function_table *functions)

+{

+   functions->Bitmap = st_Bitmap;

+}

+

+

+/** Per-context init */

+void

+st_init_bitmap(struct st_context *st)

+{

+   struct pipe_sampler_state *sampler = &st->bitmap.samplers[0];

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_screen *screen = pipe->screen;

+

+   /* init sampler state once */

+   memset(sampler, 0, sizeof(*sampler));

+   sampler->wrap_s = PIPE_TEX_WRAP_CLAMP;

+   sampler->wrap_t = PIPE_TEX_WRAP_CLAMP;

+   sampler->wrap_r = PIPE_TEX_WRAP_CLAMP;

+   sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST;

+   sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE;

+   sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST;

+   st->bitmap.samplers[1] = *sampler;

+   st->bitmap.samplers[1].normalized_coords = 1;

+

+   /* init baseline rasterizer state once */

+   memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer));

+   st->bitmap.rasterizer.gl_rasterization_rules = 1;

+

+   /* find a usable texture format */

+   if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0)) {

+      st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM;

+   }

+   else if (screen->is_format_supported(screen, PIPE_FORMAT_A8_UNORM,

+                                        PIPE_TEXTURE_2D, 0,

+                                        PIPE_BIND_SAMPLER_VIEW, 0)) {

+      st->bitmap.tex_format = PIPE_FORMAT_A8_UNORM;

+   }

+   else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM,

+                                        PIPE_TEXTURE_2D, 0,

+                                        PIPE_BIND_SAMPLER_VIEW, 0)) {

+      st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM;

+   }

+   else {

+      /* XXX support more formats */

+      assert(0);

+   }

+

+   /* alloc bitmap cache object */

+   st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache);

+

+   reset_cache(st);

+}

+

+

+/** Per-context tear-down */

+void

+st_destroy_bitmap(struct st_context *st)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct bitmap_cache *cache = st->bitmap.cache;

+

+   if (st->bitmap.vs) {

+      cso_delete_vertex_shader(st->cso_context, st->bitmap.vs);

+      st->bitmap.vs = NULL;

+   }

+

+   if (st->bitmap.vbuf) {

+      pipe_resource_reference(&st->bitmap.vbuf, NULL);

+      st->bitmap.vbuf = NULL;

+   }

+

+   if (cache) {

+      if (cache->trans) {

+         pipe_transfer_unmap(pipe, cache->trans);

+         pipe->transfer_destroy(pipe, cache->trans);

+      }

+      pipe_resource_reference(&st->bitmap.cache->texture, NULL);

+      free(st->bitmap.cache);

+      st->bitmap.cache = NULL;

+   }

+}

+

+#endif /* FEATURE_drawpix */

diff --git a/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c b/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c
index 12528f49f..9dd1f8a3e 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -1,468 +1,468 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-
-/**
- * Functions for pixel buffer objects and vertex/element buffer objects.
- */
-
-
-#include "main/imports.h"
-#include "main/mtypes.h"
-#include "main/arrayobj.h"
-#include "main/bufferobj.h"
-
-#include "st_context.h"
-#include "st_cb_bufferobjects.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-
-
-/**
- * There is some duplication between mesa's bufferobjects and our
- * bufmgr buffers.  Both have an integer handle and a hashtable to
- * lookup an opaque structure.  It would be nice if the handles and
- * internal structure where somehow shared.
- */
-static struct gl_buffer_object *
-st_bufferobj_alloc(struct gl_context *ctx, GLuint name, GLenum target)
-{
-   struct st_buffer_object *st_obj = ST_CALLOC_STRUCT(st_buffer_object);
-
-   if (!st_obj)
-      return NULL;
-
-   _mesa_initialize_buffer_object(&st_obj->Base, name, target);
-
-   return &st_obj->Base;
-}
-
-
-
-/**
- * Deallocate/free a vertex/pixel buffer object.
- * Called via glDeleteBuffersARB().
- */
-static void
-st_bufferobj_free(struct gl_context *ctx, struct gl_buffer_object *obj)
-{
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-
-   assert(obj->RefCount == 0);
-   assert(st_obj->transfer == NULL);
-
-   if (st_obj->buffer) 
-      pipe_resource_reference(&st_obj->buffer, NULL);
-
-   free(st_obj);
-}
-
-
-
-/**
- * Replace data in a subrange of buffer object.  If the data range
- * specified by size + offset extends beyond the end of the buffer or
- * if data is NULL, no copy is performed.
- * Called via glBufferSubDataARB().
- */
-static void
-st_bufferobj_subdata(struct gl_context *ctx,
-		     GLenum target,
-		     GLintptrARB offset,
-		     GLsizeiptrARB size,
-		     const GLvoid * data, struct gl_buffer_object *obj)
-{
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-
-   /* we may be called from VBO code, so double-check params here */
-   ASSERT(offset >= 0);
-   ASSERT(size >= 0);
-   ASSERT(offset + size <= obj->Size);
-
-   if (!size)
-      return;
-
-   /*
-    * According to ARB_vertex_buffer_object specification, if data is null,
-    * then the contents of the buffer object's data store is undefined. We just
-    * ignore, and leave it unchanged.
-    */
-   if (!data)
-      return;
-
-   /* Now that transfers are per-context, we don't have to figure out
-    * flushing here.  Usually drivers won't need to flush in this case
-    * even if the buffer is currently referenced by hardware - they
-    * just queue the upload as dma rather than mapping the underlying
-    * buffer directly.
-    */
-   pipe_buffer_write(st_context(ctx)->pipe,
-		     st_obj->buffer,
-		     offset, size, data);
-}
-
-
-/**
- * Called via glGetBufferSubDataARB().
- */
-static void
-st_bufferobj_get_subdata(struct gl_context *ctx,
-                         GLenum target,
-                         GLintptrARB offset,
-                         GLsizeiptrARB size,
-                         GLvoid * data, struct gl_buffer_object *obj)
-{
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-
-   /* we may be called from VBO code, so double-check params here */
-   ASSERT(offset >= 0);
-   ASSERT(size >= 0);
-   ASSERT(offset + size <= obj->Size);
-
-   if (!size)
-      return;
-
-   pipe_buffer_read(st_context(ctx)->pipe, st_obj->buffer,
-                    offset, size, data);
-}
-
-
-/**
- * Allocate space for and store data in a buffer object.  Any data that was
- * previously stored in the buffer object is lost.  If data is NULL,
- * memory will be allocated, but no copy will occur.
- * Called via ctx->Driver.BufferData().
- * \return GL_TRUE for success, GL_FALSE if out of memory
- */
-static GLboolean
-st_bufferobj_data(struct gl_context *ctx,
-		  GLenum target,
-		  GLsizeiptrARB size,
-		  const GLvoid * data,
-		  GLenum usage, 
-		  struct gl_buffer_object *obj)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-   unsigned bind, pipe_usage;
-
-   st_obj->Base.Size = size;
-   st_obj->Base.Usage = usage;
-   
-   switch(target) {
-   case GL_PIXEL_PACK_BUFFER_ARB:
-   case GL_PIXEL_UNPACK_BUFFER_ARB:
-      bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
-      break;
-   case GL_ARRAY_BUFFER_ARB:
-      bind = PIPE_BIND_VERTEX_BUFFER;
-      break;
-   case GL_ELEMENT_ARRAY_BUFFER_ARB:
-      bind = PIPE_BIND_INDEX_BUFFER;
-      break;
-   default:
-      bind = 0;
-   }
-
-   switch (usage) {
-   case GL_STATIC_DRAW:
-   case GL_STATIC_READ:
-   case GL_STATIC_COPY:
-      pipe_usage = PIPE_USAGE_STATIC;
-      break;
-   case GL_DYNAMIC_DRAW:
-   case GL_DYNAMIC_READ:
-   case GL_DYNAMIC_COPY:
-      pipe_usage = PIPE_USAGE_DYNAMIC;
-      break;
-   case GL_STREAM_DRAW:
-   case GL_STREAM_READ:
-   case GL_STREAM_COPY:
-      pipe_usage = PIPE_USAGE_STREAM;
-      break;
-   default:
-      pipe_usage = PIPE_USAGE_DEFAULT;
-   }
-
-   pipe_resource_reference( &st_obj->buffer, NULL );
-
-   if (size != 0) {
-      st_obj->buffer = pipe_buffer_create(pipe->screen, bind,
-                                          pipe_usage, size);
-
-      if (!st_obj->buffer) {
-         return GL_FALSE;
-      }
-
-      if (data)
-         pipe_buffer_write(st_context(ctx)->pipe, st_obj->buffer, 0,
-				       size, data);
-      return GL_TRUE;
-   }
-
-   return GL_TRUE;
-}
-
-
-/**
- * Dummy data whose's pointer is used for zero size buffers or ranges.
- */
-static long st_bufferobj_zero_length = 0;
-
-
-
-/**
- * Called via glMapBufferARB().
- */
-static void *
-st_bufferobj_map(struct gl_context *ctx, GLenum target, GLenum access,
-                 struct gl_buffer_object *obj)
-{
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-   uint flags;
-
-   switch (access) {
-   case GL_WRITE_ONLY:
-      flags = PIPE_TRANSFER_WRITE;
-      break;
-   case GL_READ_ONLY:
-      flags = PIPE_TRANSFER_READ;
-      break;
-   case GL_READ_WRITE:
-   default:
-      flags = PIPE_TRANSFER_READ_WRITE;
-      break;      
-   }
-
-   /* Handle zero-size buffers here rather than in drivers */
-   if (obj->Size == 0) {
-      obj->Pointer = &st_bufferobj_zero_length;
-   }
-   else {
-      obj->Pointer = pipe_buffer_map(st_context(ctx)->pipe,
-                                     st_obj->buffer,
-                                     flags,
-                                     &st_obj->transfer);
-   }
-
-   if (obj->Pointer) {
-      obj->Offset = 0;
-      obj->Length = obj->Size;
-   }
-   return obj->Pointer;
-}
-
-
-/**
- * Called via glMapBufferRange().
- */
-static void *
-st_bufferobj_map_range(struct gl_context *ctx, GLenum target, 
-                       GLintptr offset, GLsizeiptr length, GLbitfield access,
-                       struct gl_buffer_object *obj)
-{
-   struct pipe_context *pipe = st_context(ctx)->pipe;
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-   enum pipe_transfer_usage flags = 0x0;
-
-   if (access & GL_MAP_WRITE_BIT)
-      flags |= PIPE_TRANSFER_WRITE;
-
-   if (access & GL_MAP_READ_BIT)
-      flags |= PIPE_TRANSFER_READ;
-
-   if (access & GL_MAP_FLUSH_EXPLICIT_BIT)
-      flags |= PIPE_TRANSFER_FLUSH_EXPLICIT;
-
-   if (access & GL_MAP_INVALIDATE_RANGE_BIT)
-      flags |= PIPE_TRANSFER_DISCARD;
-
-   if (access & GL_MAP_INVALIDATE_BUFFER_BIT)
-      flags |= PIPE_TRANSFER_DISCARD;
-   
-   if (access & GL_MAP_UNSYNCHRONIZED_BIT)
-      flags |= PIPE_TRANSFER_UNSYNCHRONIZED;
-
-   /* ... other flags ...
-    */
-
-   if (access & MESA_MAP_NOWAIT_BIT)
-      flags |= PIPE_TRANSFER_DONTBLOCK;
-
-   assert(offset >= 0);
-   assert(length >= 0);
-   assert(offset < obj->Size);
-   assert(offset + length <= obj->Size);
-
-   /*
-    * We go out of way here to hide the degenerate yet valid case of zero
-    * length range from the pipe driver.
-    */
-   if (!length) {
-      obj->Pointer = &st_bufferobj_zero_length;
-   }
-   else {
-      obj->Pointer = pipe_buffer_map_range(pipe, 
-                                           st_obj->buffer,
-                                           offset, length,
-                                           flags,
-                                           &st_obj->transfer);
-      if (obj->Pointer) {
-         obj->Pointer = (ubyte *) obj->Pointer + offset;
-      }
-   }
-   
-   if (obj->Pointer) {
-      obj->Offset = offset;
-      obj->Length = length;
-      obj->AccessFlags = access;
-   }
-
-   return obj->Pointer;
-}
-
-
-static void
-st_bufferobj_flush_mapped_range(struct gl_context *ctx, GLenum target, 
-                                GLintptr offset, GLsizeiptr length,
-                                struct gl_buffer_object *obj)
-{
-   struct pipe_context *pipe = st_context(ctx)->pipe;
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-
-   /* Subrange is relative to mapped range */
-   assert(offset >= 0);
-   assert(length >= 0);
-   assert(offset + length <= obj->Length);
-   assert(obj->Pointer);
-   
-   if (!length)
-      return;
-
-   pipe_buffer_flush_mapped_range(pipe, st_obj->transfer, 
-                                  obj->Offset + offset, length);
-}
-
-
-/**
- * Called via glUnmapBufferARB().
- */
-static GLboolean
-st_bufferobj_unmap(struct gl_context *ctx, GLenum target, struct gl_buffer_object *obj)
-{
-   struct pipe_context *pipe = st_context(ctx)->pipe;
-   struct st_buffer_object *st_obj = st_buffer_object(obj);
-
-   if (obj->Length)
-      pipe_buffer_unmap(pipe, st_obj->transfer);
-
-   st_obj->transfer = NULL;
-   obj->Pointer = NULL;
-   obj->Offset = 0;
-   obj->Length = 0;
-   return GL_TRUE;
-}
-
-
-/**
- * Called via glCopyBufferSubData().
- */
-static void
-st_copy_buffer_subdata(struct gl_context *ctx,
-                       struct gl_buffer_object *src,
-                       struct gl_buffer_object *dst,
-                       GLintptr readOffset, GLintptr writeOffset,
-                       GLsizeiptr size)
-{
-   struct pipe_context *pipe = st_context(ctx)->pipe;
-   struct st_buffer_object *srcObj = st_buffer_object(src);
-   struct st_buffer_object *dstObj = st_buffer_object(dst);
-   struct pipe_transfer *src_transfer;
-   struct pipe_transfer *dst_transfer;
-   ubyte *srcPtr, *dstPtr;
-
-   if(!size)
-      return;
-
-   /* buffer should not already be mapped */
-   assert(!src->Pointer);
-   assert(!dst->Pointer);
-
-   srcPtr = (ubyte *) pipe_buffer_map_range(pipe,
-                                            srcObj->buffer,
-                                            readOffset, size,
-                                            PIPE_TRANSFER_READ,
-					    &src_transfer);
-
-   dstPtr = (ubyte *) pipe_buffer_map_range(pipe,
-                                            dstObj->buffer,
-                                            writeOffset, size,
-                                            PIPE_TRANSFER_WRITE,
-					    &dst_transfer);
-
-   if (srcPtr && dstPtr)
-      memcpy(dstPtr + writeOffset, srcPtr + readOffset, size);
-
-   pipe_buffer_unmap(pipe, src_transfer);
-   pipe_buffer_unmap(pipe, dst_transfer);
-}
-
-
-/* TODO: if buffer wasn't created with appropriate usage flags, need
- * to recreate it now and copy contents -- or possibly create a
- * gallium entrypoint to extend the usage flags and let the driver
- * decide if a copy is necessary.
- */
-void
-st_bufferobj_validate_usage(struct st_context *st,
-			    struct st_buffer_object *obj,
-			    unsigned usage)
-{
-}
-
-
-void
-st_init_bufferobject_functions(struct dd_function_table *functions)
-{
-   functions->NewBufferObject = st_bufferobj_alloc;
-   functions->DeleteBuffer = st_bufferobj_free;
-   functions->BufferData = st_bufferobj_data;
-   functions->BufferSubData = st_bufferobj_subdata;
-   functions->GetBufferSubData = st_bufferobj_get_subdata;
-   functions->MapBuffer = st_bufferobj_map;
-   functions->MapBufferRange = st_bufferobj_map_range;
-   functions->FlushMappedBufferRange = st_bufferobj_flush_mapped_range;
-   functions->UnmapBuffer = st_bufferobj_unmap;
-   functions->CopyBufferSubData = st_copy_buffer_subdata;
-
-   /* For GL_APPLE_vertex_array_object */
-   functions->NewArrayObject = _mesa_new_array_object;
-   functions->DeleteArrayObject = _mesa_delete_array_object;
-}
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+

+/**

+ * Functions for pixel buffer objects and vertex/element buffer objects.

+ */

+

+

+#include "main/imports.h"

+#include "main/mtypes.h"

+#include "main/arrayobj.h"

+#include "main/bufferobj.h"

+

+#include "st_context.h"

+#include "st_cb_bufferobjects.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "util/u_inlines.h"

+

+

+/**

+ * There is some duplication between mesa's bufferobjects and our

+ * bufmgr buffers.  Both have an integer handle and a hashtable to

+ * lookup an opaque structure.  It would be nice if the handles and

+ * internal structure where somehow shared.

+ */

+static struct gl_buffer_object *

+st_bufferobj_alloc(struct gl_context *ctx, GLuint name, GLenum target)

+{

+   struct st_buffer_object *st_obj = ST_CALLOC_STRUCT(st_buffer_object);

+

+   if (!st_obj)

+      return NULL;

+

+   _mesa_initialize_buffer_object(&st_obj->Base, name, target);

+

+   return &st_obj->Base;

+}

+

+

+

+/**

+ * Deallocate/free a vertex/pixel buffer object.

+ * Called via glDeleteBuffersARB().

+ */

+static void

+st_bufferobj_free(struct gl_context *ctx, struct gl_buffer_object *obj)

+{

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+

+   assert(obj->RefCount == 0);

+   assert(st_obj->transfer == NULL);

+

+   if (st_obj->buffer) 

+      pipe_resource_reference(&st_obj->buffer, NULL);

+

+   free(st_obj);

+}

+

+

+

+/**

+ * Replace data in a subrange of buffer object.  If the data range

+ * specified by size + offset extends beyond the end of the buffer or

+ * if data is NULL, no copy is performed.

+ * Called via glBufferSubDataARB().

+ */

+static void

+st_bufferobj_subdata(struct gl_context *ctx,

+		     GLenum target,

+		     GLintptrARB offset,

+		     GLsizeiptrARB size,

+		     const GLvoid * data, struct gl_buffer_object *obj)

+{

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+

+   /* we may be called from VBO code, so double-check params here */

+   ASSERT(offset >= 0);

+   ASSERT(size >= 0);

+   ASSERT(offset + size <= obj->Size);

+

+   if (!size)

+      return;

+

+   /*

+    * According to ARB_vertex_buffer_object specification, if data is null,

+    * then the contents of the buffer object's data store is undefined. We just

+    * ignore, and leave it unchanged.

+    */

+   if (!data)

+      return;

+

+   /* Now that transfers are per-context, we don't have to figure out

+    * flushing here.  Usually drivers won't need to flush in this case

+    * even if the buffer is currently referenced by hardware - they

+    * just queue the upload as dma rather than mapping the underlying

+    * buffer directly.

+    */

+   pipe_buffer_write(st_context(ctx)->pipe,

+		     st_obj->buffer,

+		     offset, size, data);

+}

+

+

+/**

+ * Called via glGetBufferSubDataARB().

+ */

+static void

+st_bufferobj_get_subdata(struct gl_context *ctx,

+                         GLenum target,

+                         GLintptrARB offset,

+                         GLsizeiptrARB size,

+                         GLvoid * data, struct gl_buffer_object *obj)

+{

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+

+   /* we may be called from VBO code, so double-check params here */

+   ASSERT(offset >= 0);

+   ASSERT(size >= 0);

+   ASSERT(offset + size <= obj->Size);

+

+   if (!size)

+      return;

+

+   pipe_buffer_read(st_context(ctx)->pipe, st_obj->buffer,

+                    offset, size, data);

+}

+

+

+/**

+ * Allocate space for and store data in a buffer object.  Any data that was

+ * previously stored in the buffer object is lost.  If data is NULL,

+ * memory will be allocated, but no copy will occur.

+ * Called via ctx->Driver.BufferData().

+ * \return GL_TRUE for success, GL_FALSE if out of memory

+ */

+static GLboolean

+st_bufferobj_data(struct gl_context *ctx,

+		  GLenum target,

+		  GLsizeiptrARB size,

+		  const GLvoid * data,

+		  GLenum usage, 

+		  struct gl_buffer_object *obj)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+   unsigned bind, pipe_usage;

+

+   st_obj->Base.Size = size;

+   st_obj->Base.Usage = usage;

+   

+   switch(target) {

+   case GL_PIXEL_PACK_BUFFER_ARB:

+   case GL_PIXEL_UNPACK_BUFFER_ARB:

+      bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;

+      break;

+   case GL_ARRAY_BUFFER_ARB:

+      bind = PIPE_BIND_VERTEX_BUFFER;

+      break;

+   case GL_ELEMENT_ARRAY_BUFFER_ARB:

+      bind = PIPE_BIND_INDEX_BUFFER;

+      break;

+   default:

+      bind = 0;

+   }

+

+   switch (usage) {

+   case GL_STATIC_DRAW:

+   case GL_STATIC_READ:

+   case GL_STATIC_COPY:

+      pipe_usage = PIPE_USAGE_STATIC;

+      break;

+   case GL_DYNAMIC_DRAW:

+   case GL_DYNAMIC_READ:

+   case GL_DYNAMIC_COPY:

+      pipe_usage = PIPE_USAGE_DYNAMIC;

+      break;

+   case GL_STREAM_DRAW:

+   case GL_STREAM_READ:

+   case GL_STREAM_COPY:

+      pipe_usage = PIPE_USAGE_STREAM;

+      break;

+   default:

+      pipe_usage = PIPE_USAGE_DEFAULT;

+   }

+

+   pipe_resource_reference( &st_obj->buffer, NULL );

+

+   if (size != 0) {

+      st_obj->buffer = pipe_buffer_create(pipe->screen, bind,

+                                          pipe_usage, size);

+

+      if (!st_obj->buffer) {

+         return GL_FALSE;

+      }

+

+      if (data)

+         pipe_buffer_write(st_context(ctx)->pipe, st_obj->buffer, 0,

+				       size, data);

+      return GL_TRUE;

+   }

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Dummy data whose's pointer is used for zero size buffers or ranges.

+ */

+static long st_bufferobj_zero_length = 0;

+

+

+

+/**

+ * Called via glMapBufferARB().

+ */

+static void *

+st_bufferobj_map(struct gl_context *ctx, GLenum target, GLenum access,

+                 struct gl_buffer_object *obj)

+{

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+   uint flags;

+

+   switch (access) {

+   case GL_WRITE_ONLY:

+      flags = PIPE_TRANSFER_WRITE;

+      break;

+   case GL_READ_ONLY:

+      flags = PIPE_TRANSFER_READ;

+      break;

+   case GL_READ_WRITE:

+   default:

+      flags = PIPE_TRANSFER_READ_WRITE;

+      break;      

+   }

+

+   /* Handle zero-size buffers here rather than in drivers */

+   if (obj->Size == 0) {

+      obj->Pointer = &st_bufferobj_zero_length;

+   }

+   else {

+      obj->Pointer = pipe_buffer_map(st_context(ctx)->pipe,

+                                     st_obj->buffer,

+                                     flags,

+                                     &st_obj->transfer);

+   }

+

+   if (obj->Pointer) {

+      obj->Offset = 0;

+      obj->Length = obj->Size;

+   }

+   return obj->Pointer;

+}

+

+

+/**

+ * Called via glMapBufferRange().

+ */

+static void *

+st_bufferobj_map_range(struct gl_context *ctx, GLenum target, 

+                       GLintptr offset, GLsizeiptr length, GLbitfield access,

+                       struct gl_buffer_object *obj)

+{

+   struct pipe_context *pipe = st_context(ctx)->pipe;

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+   enum pipe_transfer_usage flags = 0x0;

+

+   if (access & GL_MAP_WRITE_BIT)

+      flags |= PIPE_TRANSFER_WRITE;

+

+   if (access & GL_MAP_READ_BIT)

+      flags |= PIPE_TRANSFER_READ;

+

+   if (access & GL_MAP_FLUSH_EXPLICIT_BIT)

+      flags |= PIPE_TRANSFER_FLUSH_EXPLICIT;

+

+   if (access & GL_MAP_INVALIDATE_RANGE_BIT)

+      flags |= PIPE_TRANSFER_DISCARD;

+

+   if (access & GL_MAP_INVALIDATE_BUFFER_BIT)

+      flags |= PIPE_TRANSFER_DISCARD;

+   

+   if (access & GL_MAP_UNSYNCHRONIZED_BIT)

+      flags |= PIPE_TRANSFER_UNSYNCHRONIZED;

+

+   /* ... other flags ...

+    */

+

+   if (access & MESA_MAP_NOWAIT_BIT)

+      flags |= PIPE_TRANSFER_DONTBLOCK;

+

+   assert(offset >= 0);

+   assert(length >= 0);

+   assert(offset < obj->Size);

+   assert(offset + length <= obj->Size);

+

+   /*

+    * We go out of way here to hide the degenerate yet valid case of zero

+    * length range from the pipe driver.

+    */

+   if (!length) {

+      obj->Pointer = &st_bufferobj_zero_length;

+   }

+   else {

+      obj->Pointer = pipe_buffer_map_range(pipe, 

+                                           st_obj->buffer,

+                                           offset, length,

+                                           flags,

+                                           &st_obj->transfer);

+      if (obj->Pointer) {

+         obj->Pointer = (ubyte *) obj->Pointer + offset;

+      }

+   }

+   

+   if (obj->Pointer) {

+      obj->Offset = offset;

+      obj->Length = length;

+      obj->AccessFlags = access;

+   }

+

+   return obj->Pointer;

+}

+

+

+static void

+st_bufferobj_flush_mapped_range(struct gl_context *ctx, GLenum target, 

+                                GLintptr offset, GLsizeiptr length,

+                                struct gl_buffer_object *obj)

+{

+   struct pipe_context *pipe = st_context(ctx)->pipe;

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+

+   /* Subrange is relative to mapped range */

+   assert(offset >= 0);

+   assert(length >= 0);

+   assert(offset + length <= obj->Length);

+   assert(obj->Pointer);

+   

+   if (!length)

+      return;

+

+   pipe_buffer_flush_mapped_range(pipe, st_obj->transfer, 

+                                  obj->Offset + offset, length);

+}

+

+

+/**

+ * Called via glUnmapBufferARB().

+ */

+static GLboolean

+st_bufferobj_unmap(struct gl_context *ctx, GLenum target, struct gl_buffer_object *obj)

+{

+   struct pipe_context *pipe = st_context(ctx)->pipe;

+   struct st_buffer_object *st_obj = st_buffer_object(obj);

+

+   if (obj->Length)

+      pipe_buffer_unmap(pipe, st_obj->transfer);

+

+   st_obj->transfer = NULL;

+   obj->Pointer = NULL;

+   obj->Offset = 0;

+   obj->Length = 0;

+   return GL_TRUE;

+}

+

+

+/**

+ * Called via glCopyBufferSubData().

+ */

+static void

+st_copy_buffer_subdata(struct gl_context *ctx,

+                       struct gl_buffer_object *src,

+                       struct gl_buffer_object *dst,

+                       GLintptr readOffset, GLintptr writeOffset,

+                       GLsizeiptr size)

+{

+   struct pipe_context *pipe = st_context(ctx)->pipe;

+   struct st_buffer_object *srcObj = st_buffer_object(src);

+   struct st_buffer_object *dstObj = st_buffer_object(dst);

+   struct pipe_transfer *src_transfer;

+   struct pipe_transfer *dst_transfer;

+   ubyte *srcPtr, *dstPtr;

+

+   if(!size)

+      return;

+

+   /* buffer should not already be mapped */

+   assert(!src->Pointer);

+   assert(!dst->Pointer);

+

+   srcPtr = (ubyte *) pipe_buffer_map_range(pipe,

+                                            srcObj->buffer,

+                                            readOffset, size,

+                                            PIPE_TRANSFER_READ,

+					    &src_transfer);

+

+   dstPtr = (ubyte *) pipe_buffer_map_range(pipe,

+                                            dstObj->buffer,

+                                            writeOffset, size,

+                                            PIPE_TRANSFER_WRITE,

+					    &dst_transfer);

+

+   if (srcPtr && dstPtr)

+      memcpy(dstPtr + writeOffset, srcPtr + readOffset, size);

+

+   pipe_buffer_unmap(pipe, src_transfer);

+   pipe_buffer_unmap(pipe, dst_transfer);

+}

+

+

+/* TODO: if buffer wasn't created with appropriate usage flags, need

+ * to recreate it now and copy contents -- or possibly create a

+ * gallium entrypoint to extend the usage flags and let the driver

+ * decide if a copy is necessary.

+ */

+void

+st_bufferobj_validate_usage(struct st_context *st,

+			    struct st_buffer_object *obj,

+			    unsigned usage)

+{

+}

+

+

+void

+st_init_bufferobject_functions(struct dd_function_table *functions)

+{

+   functions->NewBufferObject = st_bufferobj_alloc;

+   functions->DeleteBuffer = st_bufferobj_free;

+   functions->BufferData = st_bufferobj_data;

+   functions->BufferSubData = st_bufferobj_subdata;

+   functions->GetBufferSubData = st_bufferobj_get_subdata;

+   functions->MapBuffer = st_bufferobj_map;

+   functions->MapBufferRange = st_bufferobj_map_range;

+   functions->FlushMappedBufferRange = st_bufferobj_flush_mapped_range;

+   functions->UnmapBuffer = st_bufferobj_unmap;

+   functions->CopyBufferSubData = st_copy_buffer_subdata;

+

+   /* For GL_APPLE_vertex_array_object */

+   functions->NewArrayObject = _mesa_new_array_object;

+   functions->DeleteArrayObject = _mesa_delete_array_object;

+}

diff --git a/mesalib/src/mesa/state_tracker/st_cb_clear.c b/mesalib/src/mesa/state_tracker/st_cb_clear.c
index d2e0cd73c..461f4e315 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_clear.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_clear.c
@@ -1,563 +1,563 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * Copyright 2009 VMware, Inc.  All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
- /*
-  * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
-  *   Brian Paul
-  *   Michel Dänzer
-  */
-
-#include "main/glheader.h"
-#include "main/formats.h"
-#include "main/macros.h"
-#include "program/prog_instruction.h"
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_accum.h"
-#include "st_cb_clear.h"
-#include "st_cb_fbo.h"
-#include "st_program.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_shader_tokens.h"
-#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-#include "util/u_format.h"
-#include "util/u_inlines.h"
-#include "util/u_simple_shaders.h"
-#include "util/u_draw_quad.h"
-
-#include "cso_cache/cso_context.h"
-
-
-/**
- * Do per-context initialization for glClear.
- */
-void
-st_init_clear(struct st_context *st)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_screen *pscreen = st->pipe->screen;
-
-   memset(&st->clear, 0, sizeof(st->clear));
-
-   st->clear.raster.gl_rasterization_rules = 1;
-   st->clear.enable_ds_separate = pscreen->get_param(pscreen, PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE);
-
-   /* fragment shader state: color pass-through program */
-   st->clear.fs = util_make_fragment_passthrough_shader(pipe);
-
-   /* vertex shader state: color/position pass-through */
-   {
-      const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
-                                      TGSI_SEMANTIC_COLOR };
-      const uint semantic_indexes[] = { 0, 0 };
-      st->clear.vs = util_make_vertex_passthrough_shader(pipe, 2,
-                                                         semantic_names,
-                                                         semantic_indexes);
-   }
-}
-
-
-/**
- * Free per-context state for glClear.
- */
-void
-st_destroy_clear(struct st_context *st)
-{
-   if (st->clear.fs) {
-      cso_delete_fragment_shader(st->cso_context, st->clear.fs);
-      st->clear.fs = NULL;
-   }
-   if (st->clear.vs) {
-      cso_delete_vertex_shader(st->cso_context, st->clear.vs);
-      st->clear.vs = NULL;
-   }
-   if (st->clear.vbuf) {
-      pipe_resource_reference(&st->clear.vbuf, NULL);
-      st->clear.vbuf = NULL;
-   }
-}
-
-
-/**
- * Draw a screen-aligned quadrilateral.
- * Coords are clip coords with y=0=bottom.
- */
-static void
-draw_quad(struct st_context *st,
-          float x0, float y0, float x1, float y1, GLfloat z,
-          const GLfloat color[4])
-{
-   struct pipe_context *pipe = st->pipe;
-
-   /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as
-    * no_flush) updates to buffers where we know there is no conflict
-    * with previous data.  Currently using max_slots > 1 will cause
-    * synchronous rendering if the driver flushes its command buffers
-    * between one bitmap and the next.  Our flush hook below isn't
-    * sufficient to catch this as the driver doesn't tell us when it
-    * flushes its own command buffers.  Until this gets fixed, pay the
-    * price of allocating a new buffer for each bitmap cache-flush to
-    * avoid synchronous rendering.
-    */
-   const GLuint max_slots = 1; /* 1024 / sizeof(st->clear.vertices); */
-   GLuint i;
-
-   if (st->clear.vbuf_slot >= max_slots) {
-      pipe_resource_reference(&st->clear.vbuf, NULL);
-      st->clear.vbuf_slot = 0;
-   }
-
-   if (!st->clear.vbuf) {
-      st->clear.vbuf = pipe_buffer_create(pipe->screen,
-                                          PIPE_BIND_VERTEX_BUFFER,
-                                          PIPE_USAGE_STREAM,
-                                          max_slots * sizeof(st->clear.vertices));
-   }
-
-   /* positions */
-   st->clear.vertices[0][0][0] = x0;
-   st->clear.vertices[0][0][1] = y0;
-
-   st->clear.vertices[1][0][0] = x1;
-   st->clear.vertices[1][0][1] = y0;
-
-   st->clear.vertices[2][0][0] = x1;
-   st->clear.vertices[2][0][1] = y1;
-
-   st->clear.vertices[3][0][0] = x0;
-   st->clear.vertices[3][0][1] = y1;
-
-   /* same for all verts: */
-   for (i = 0; i < 4; i++) {
-      st->clear.vertices[i][0][2] = z;
-      st->clear.vertices[i][0][3] = 1.0;
-      st->clear.vertices[i][1][0] = color[0];
-      st->clear.vertices[i][1][1] = color[1];
-      st->clear.vertices[i][1][2] = color[2];
-      st->clear.vertices[i][1][3] = color[3];
-   }
-
-   /* put vertex data into vbuf */
-   pipe_buffer_write_nooverlap(st->pipe, st->clear.vbuf,
-                                           st->clear.vbuf_slot
-                                             * sizeof(st->clear.vertices),
-                                           sizeof(st->clear.vertices),
-                                           st->clear.vertices);
-
-   /* draw */
-   util_draw_vertex_buffer(pipe,
-                           st->cso_context,
-                           st->clear.vbuf, 
-                           st->clear.vbuf_slot * sizeof(st->clear.vertices),
-                           PIPE_PRIM_TRIANGLE_FAN,
-                           4,  /* verts */
-                           2); /* attribs/vert */
-
-   /* Increment slot */
-   st->clear.vbuf_slot++;
-}
-
-
-
-/**
- * Do glClear by drawing a quadrilateral.
- * The vertices of the quad will be computed from the
- * ctx->DrawBuffer->_X/Ymin/max fields.
- */
-static void
-clear_with_quad(struct gl_context *ctx,
-                GLboolean color, GLboolean depth, GLboolean stencil)
-{
-   struct st_context *st = st_context(ctx);
-   const struct gl_framebuffer *fb = ctx->DrawBuffer;
-   const GLfloat fb_width = (GLfloat) fb->Width;
-   const GLfloat fb_height = (GLfloat) fb->Height;
-   const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin / fb_width * 2.0f - 1.0f;
-   const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax / fb_width * 2.0f - 1.0f;
-   const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin / fb_height * 2.0f - 1.0f;
-   const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax / fb_height * 2.0f - 1.0f;
-
-   /*
-   printf("%s %s%s%s %f,%f %f,%f\n", __FUNCTION__, 
-	  color ? "color, " : "",
-	  depth ? "depth, " : "",
-	  stencil ? "stencil" : "",
-	  x0, y0,
-	  x1, y1);
-   */
-
-   cso_save_blend(st->cso_context);
-   cso_save_stencil_ref(st->cso_context);
-   cso_save_depth_stencil_alpha(st->cso_context);
-   cso_save_rasterizer(st->cso_context);
-   cso_save_viewport(st->cso_context);
-   cso_save_clip(st->cso_context);
-   cso_save_fragment_shader(st->cso_context);
-   cso_save_vertex_shader(st->cso_context);
-   cso_save_vertex_elements(st->cso_context);
-   cso_save_vertex_buffers(st->cso_context);
-
-   /* blend state: RGBA masking */
-   {
-      struct pipe_blend_state blend;
-      memset(&blend, 0, sizeof(blend));
-      blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
-      blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
-      blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
-      blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
-      if (color) {
-         if (ctx->Color.ColorMask[0][0])
-            blend.rt[0].colormask |= PIPE_MASK_R;
-         if (ctx->Color.ColorMask[0][1])
-            blend.rt[0].colormask |= PIPE_MASK_G;
-         if (ctx->Color.ColorMask[0][2])
-            blend.rt[0].colormask |= PIPE_MASK_B;
-         if (ctx->Color.ColorMask[0][3])
-            blend.rt[0].colormask |= PIPE_MASK_A;
-         if (st->ctx->Color.DitherFlag)
-            blend.dither = 1;
-      }
-      cso_set_blend(st->cso_context, &blend);
-   }
-
-   /* depth_stencil state: always pass/set to ref value */
-   {
-      struct pipe_depth_stencil_alpha_state depth_stencil;
-      memset(&depth_stencil, 0, sizeof(depth_stencil));
-      if (depth) {
-         depth_stencil.depth.enabled = 1;
-         depth_stencil.depth.writemask = 1;
-         depth_stencil.depth.func = PIPE_FUNC_ALWAYS;
-      }
-
-      if (stencil) {
-         struct pipe_stencil_ref stencil_ref;
-         memset(&stencil_ref, 0, sizeof(stencil_ref));
-         depth_stencil.stencil[0].enabled = 1;
-         depth_stencil.stencil[0].func = PIPE_FUNC_ALWAYS;
-         depth_stencil.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;
-         depth_stencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
-         depth_stencil.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;
-         depth_stencil.stencil[0].valuemask = 0xff;
-         depth_stencil.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
-         stencil_ref.ref_value[0] = ctx->Stencil.Clear;
-         cso_set_stencil_ref(st->cso_context, &stencil_ref);
-      }
-
-      cso_set_depth_stencil_alpha(st->cso_context, &depth_stencil);
-   }
-
-   cso_set_vertex_elements(st->cso_context, 2, st->velems_util_draw);
-
-   cso_set_rasterizer(st->cso_context, &st->clear.raster);
-
-   /* viewport state: viewport matching window dims */
-   {
-      const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
-      struct pipe_viewport_state vp;
-      vp.scale[0] = 0.5f * fb_width;
-      vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f);
-      vp.scale[2] = 1.0f;
-      vp.scale[3] = 1.0f;
-      vp.translate[0] = 0.5f * fb_width;
-      vp.translate[1] = 0.5f * fb_height;
-      vp.translate[2] = 0.0f;
-      vp.translate[3] = 0.0f;
-      cso_set_viewport(st->cso_context, &vp);
-   }
-
-   cso_set_clip(st->cso_context, &st->clear.clip);
-   cso_set_fragment_shader_handle(st->cso_context, st->clear.fs);
-   cso_set_vertex_shader_handle(st->cso_context, st->clear.vs);
-
-   /* draw quad matching scissor rect (XXX verify coord round-off) */
-   draw_quad(st, x0, y0, x1, y1,
-             (GLfloat) ctx->Depth.Clear, ctx->Color.ClearColor);
-
-   /* Restore pipe state */
-   cso_restore_blend(st->cso_context);
-   cso_restore_stencil_ref(st->cso_context);
-   cso_restore_depth_stencil_alpha(st->cso_context);
-   cso_restore_rasterizer(st->cso_context);
-   cso_restore_viewport(st->cso_context);
-   cso_restore_clip(st->cso_context);
-   cso_restore_fragment_shader(st->cso_context);
-   cso_restore_vertex_shader(st->cso_context);
-   cso_restore_vertex_elements(st->cso_context);
-   cso_restore_vertex_buffers(st->cso_context);
-}
-
-
-/**
- * Determine if we need to clear the depth buffer by drawing a quad.
- */
-static INLINE GLboolean
-check_clear_color_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb)
-{
-   if (ctx->Scissor.Enabled &&
-       (ctx->Scissor.X != 0 ||
-        ctx->Scissor.Y != 0 ||
-        ctx->Scissor.Width < rb->Width ||
-        ctx->Scissor.Height < rb->Height))
-      return GL_TRUE;
-
-   if (!ctx->Color.ColorMask[0][0] ||
-       !ctx->Color.ColorMask[0][1] ||
-       !ctx->Color.ColorMask[0][2] ||
-       !ctx->Color.ColorMask[0][3])
-      return GL_TRUE;
-
-   return GL_FALSE;
-}
-
-
-/**
- * Determine if we need to clear the combiend depth/stencil buffer by
- * drawing a quad.
- */
-static INLINE GLboolean
-check_clear_depth_stencil_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb)
-{
-   const GLuint stencilMax = 0xff;
-   GLboolean maskStencil
-      = (ctx->Stencil.WriteMask[0] & stencilMax) != stencilMax;
-
-   assert(rb->Format == MESA_FORMAT_S8 ||
-          rb->Format == MESA_FORMAT_Z24_S8 ||
-          rb->Format == MESA_FORMAT_S8_Z24);
-
-   if (ctx->Scissor.Enabled &&
-       (ctx->Scissor.X != 0 ||
-        ctx->Scissor.Y != 0 ||
-        ctx->Scissor.Width < rb->Width ||
-        ctx->Scissor.Height < rb->Height))
-      return GL_TRUE;
-
-   if (maskStencil)
-      return GL_TRUE;
-
-   return GL_FALSE;
-}
-
-
-/**
- * Determine if we need to clear the depth buffer by drawing a quad.
- */
-static INLINE GLboolean
-check_clear_depth_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                            boolean ds_separate)
-{
-   const struct st_renderbuffer *strb = st_renderbuffer(rb);
-   const GLboolean isDS = util_format_is_depth_and_stencil(strb->surface->format);
-
-   if (ctx->Scissor.Enabled &&
-       (ctx->Scissor.X != 0 ||
-        ctx->Scissor.Y != 0 ||
-        ctx->Scissor.Width < rb->Width ||
-        ctx->Scissor.Height < rb->Height))
-      return GL_TRUE;
-
-   if (!ds_separate && isDS && ctx->DrawBuffer->Visual.stencilBits > 0)
-      return GL_TRUE;
-
-   return GL_FALSE;
-}
-
-
-/**
- * Determine if we need to clear the stencil buffer by drawing a quad.
- */
-static INLINE GLboolean
-check_clear_stencil_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                              boolean ds_separate)
-{
-   const struct st_renderbuffer *strb = st_renderbuffer(rb);
-   const GLboolean isDS = util_format_is_depth_and_stencil(strb->surface->format);
-   const GLuint stencilMax = 0xff;
-   const GLboolean maskStencil
-      = (ctx->Stencil.WriteMask[0] & stencilMax) != stencilMax;
-
-   assert(rb->Format == MESA_FORMAT_S8 ||
-          rb->Format == MESA_FORMAT_Z24_S8 ||
-          rb->Format == MESA_FORMAT_S8_Z24);
-
-   if (maskStencil) 
-      return GL_TRUE;
-
-   if (ctx->Scissor.Enabled &&
-       (ctx->Scissor.X != 0 ||
-        ctx->Scissor.Y != 0 ||
-        ctx->Scissor.Width < rb->Width ||
-        ctx->Scissor.Height < rb->Height))
-      return GL_TRUE;
-
-   /* This is correct, but it is necessary to look at the depth clear
-    * value held in the surface when it comes time to issue the clear,
-    * rather than taking depth and stencil clear values from the
-    * current state.
-    */
-   if (!ds_separate && isDS && ctx->DrawBuffer->Visual.depthBits > 0)
-      return GL_TRUE;
-
-   return GL_FALSE;
-}
-
-
-
-/**
- * Called when we need to flush.
- */
-void
-st_flush_clear(struct st_context *st)
-{
-   /* Release vertex buffer to avoid synchronous rendering if we were
-    * to map it in the next frame.
-    */
-   pipe_resource_reference(&st->clear.vbuf, NULL);
-   st->clear.vbuf_slot = 0;
-}
- 
-
-
-/**
- * Called via ctx->Driver.Clear()
- */
-static void
-st_Clear(struct gl_context *ctx, GLbitfield mask)
-{
-   static const GLbitfield BUFFER_BITS_DS
-      = (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
-   struct st_context *st = st_context(ctx);
-   struct gl_renderbuffer *depthRb
-      = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
-   struct gl_renderbuffer *stencilRb
-      = ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer;
-   GLbitfield quad_buffers = 0x0;
-   GLbitfield clear_buffers = 0x0;
-   GLuint i;
-
-   /* This makes sure the pipe has the latest scissor, etc values */
-   st_validate_state( st );
-
-   if (mask & BUFFER_BITS_COLOR) {
-      for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
-         GLuint b = ctx->DrawBuffer->_ColorDrawBufferIndexes[i];
-
-         if (mask & (1 << b)) {
-            struct gl_renderbuffer *rb
-               = ctx->DrawBuffer->Attachment[b].Renderbuffer;
-            struct st_renderbuffer *strb = st_renderbuffer(rb);
-
-            if (!strb || !strb->surface)
-               continue;
-
-            if (check_clear_color_with_quad( ctx, rb ))
-               quad_buffers |= PIPE_CLEAR_COLOR;
-            else
-               clear_buffers |= PIPE_CLEAR_COLOR;
-         }
-      }
-   }
-
-   if ((mask & BUFFER_BITS_DS) == BUFFER_BITS_DS && depthRb == stencilRb) {
-      /* clearing combined depth + stencil */
-      struct st_renderbuffer *strb = st_renderbuffer(depthRb);
-
-      if (strb->surface) {
-         if (check_clear_depth_stencil_with_quad(ctx, depthRb))
-            quad_buffers |= PIPE_CLEAR_DEPTHSTENCIL;
-         else
-            clear_buffers |= PIPE_CLEAR_DEPTHSTENCIL;
-      }
-   }
-   else {
-      /* separate depth/stencil clears */
-      /* I don't think truly separate buffers are actually possible in gallium or hw? */
-      if (mask & BUFFER_BIT_DEPTH) {
-         struct st_renderbuffer *strb = st_renderbuffer(depthRb);
-
-         if (strb->surface) {
-            if (check_clear_depth_with_quad(ctx, depthRb,
-                                            st->clear.enable_ds_separate))
-               quad_buffers |= PIPE_CLEAR_DEPTH;
-            else
-               clear_buffers |= PIPE_CLEAR_DEPTH;
-         }
-      }
-      if (mask & BUFFER_BIT_STENCIL) {
-         struct st_renderbuffer *strb = st_renderbuffer(stencilRb);
-
-         if (strb->surface) {
-            if (check_clear_stencil_with_quad(ctx, stencilRb,
-                                              st->clear.enable_ds_separate))
-               quad_buffers |= PIPE_CLEAR_STENCIL;
-            else
-               clear_buffers |= PIPE_CLEAR_STENCIL;
-         }
-      }
-   }
-
-   /*
-    * If we're going to use clear_with_quad() for any reason, use it for
-    * everything possible.
-    */
-   if (quad_buffers) {
-      quad_buffers |= clear_buffers;
-      clear_with_quad(ctx,
-                      quad_buffers & PIPE_CLEAR_COLOR,
-                      quad_buffers & PIPE_CLEAR_DEPTH,
-                      quad_buffers & PIPE_CLEAR_STENCIL);
-   } else if (clear_buffers) {
-      /* driver cannot know it can clear everything if the buffer
-       * is a combined depth/stencil buffer but this wasn't actually
-       * required from the visual. Hence fix this up to avoid potential
-       * read-modify-write in the driver.
-       */
-      if ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) &&
-          ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
-          (depthRb == stencilRb) &&
-          (ctx->DrawBuffer->Visual.depthBits == 0 ||
-           ctx->DrawBuffer->Visual.stencilBits == 0))
-         clear_buffers |= PIPE_CLEAR_DEPTHSTENCIL;
-      st->pipe->clear(st->pipe, clear_buffers, ctx->Color.ClearColor,
-                      ctx->Depth.Clear, ctx->Stencil.Clear);
-   }
-   if (mask & BUFFER_BIT_ACCUM)
-      st_clear_accum_buffer(ctx,
-                            ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer);
-}
-
-
-void
-st_init_clear_functions(struct dd_function_table *functions)
-{
-   functions->Clear = st_Clear;
-}
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * Copyright 2009 VMware, Inc.  All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+ /*

+  * Authors:

+  *   Keith Whitwell <keith@tungstengraphics.com>

+  *   Brian Paul

+  *   Michel Dänzer

+  */

+

+#include "main/glheader.h"

+#include "main/formats.h"

+#include "main/macros.h"

+#include "program/prog_instruction.h"

+#include "st_context.h"

+#include "st_atom.h"

+#include "st_cb_accum.h"

+#include "st_cb_clear.h"

+#include "st_cb_fbo.h"

+#include "st_program.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_shader_tokens.h"

+#include "pipe/p_state.h"

+#include "pipe/p_defines.h"

+#include "util/u_format.h"

+#include "util/u_inlines.h"

+#include "util/u_simple_shaders.h"

+#include "util/u_draw_quad.h"

+

+#include "cso_cache/cso_context.h"

+

+

+/**

+ * Do per-context initialization for glClear.

+ */

+void

+st_init_clear(struct st_context *st)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_screen *pscreen = st->pipe->screen;

+

+   memset(&st->clear, 0, sizeof(st->clear));

+

+   st->clear.raster.gl_rasterization_rules = 1;

+   st->clear.enable_ds_separate = pscreen->get_param(pscreen, PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE);

+

+   /* fragment shader state: color pass-through program */

+   st->clear.fs = util_make_fragment_passthrough_shader(pipe);

+

+   /* vertex shader state: color/position pass-through */

+   {

+      const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,

+                                      TGSI_SEMANTIC_COLOR };

+      const uint semantic_indexes[] = { 0, 0 };

+      st->clear.vs = util_make_vertex_passthrough_shader(pipe, 2,

+                                                         semantic_names,

+                                                         semantic_indexes);

+   }

+}

+

+

+/**

+ * Free per-context state for glClear.

+ */

+void

+st_destroy_clear(struct st_context *st)

+{

+   if (st->clear.fs) {

+      cso_delete_fragment_shader(st->cso_context, st->clear.fs);

+      st->clear.fs = NULL;

+   }

+   if (st->clear.vs) {

+      cso_delete_vertex_shader(st->cso_context, st->clear.vs);

+      st->clear.vs = NULL;

+   }

+   if (st->clear.vbuf) {

+      pipe_resource_reference(&st->clear.vbuf, NULL);

+      st->clear.vbuf = NULL;

+   }

+}

+

+

+/**

+ * Draw a screen-aligned quadrilateral.

+ * Coords are clip coords with y=0=bottom.

+ */

+static void

+draw_quad(struct st_context *st,

+          float x0, float y0, float x1, float y1, GLfloat z,

+          const GLfloat color[4])

+{

+   struct pipe_context *pipe = st->pipe;

+

+   /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as

+    * no_flush) updates to buffers where we know there is no conflict

+    * with previous data.  Currently using max_slots > 1 will cause

+    * synchronous rendering if the driver flushes its command buffers

+    * between one bitmap and the next.  Our flush hook below isn't

+    * sufficient to catch this as the driver doesn't tell us when it

+    * flushes its own command buffers.  Until this gets fixed, pay the

+    * price of allocating a new buffer for each bitmap cache-flush to

+    * avoid synchronous rendering.

+    */

+   const GLuint max_slots = 1; /* 1024 / sizeof(st->clear.vertices); */

+   GLuint i;

+

+   if (st->clear.vbuf_slot >= max_slots) {

+      pipe_resource_reference(&st->clear.vbuf, NULL);

+      st->clear.vbuf_slot = 0;

+   }

+

+   if (!st->clear.vbuf) {

+      st->clear.vbuf = pipe_buffer_create(pipe->screen,

+                                          PIPE_BIND_VERTEX_BUFFER,

+                                          PIPE_USAGE_STREAM,

+                                          max_slots * sizeof(st->clear.vertices));

+   }

+

+   /* positions */

+   st->clear.vertices[0][0][0] = x0;

+   st->clear.vertices[0][0][1] = y0;

+

+   st->clear.vertices[1][0][0] = x1;

+   st->clear.vertices[1][0][1] = y0;

+

+   st->clear.vertices[2][0][0] = x1;

+   st->clear.vertices[2][0][1] = y1;

+

+   st->clear.vertices[3][0][0] = x0;

+   st->clear.vertices[3][0][1] = y1;

+

+   /* same for all verts: */

+   for (i = 0; i < 4; i++) {

+      st->clear.vertices[i][0][2] = z;

+      st->clear.vertices[i][0][3] = 1.0;

+      st->clear.vertices[i][1][0] = color[0];

+      st->clear.vertices[i][1][1] = color[1];

+      st->clear.vertices[i][1][2] = color[2];

+      st->clear.vertices[i][1][3] = color[3];

+   }

+

+   /* put vertex data into vbuf */

+   pipe_buffer_write_nooverlap(st->pipe, st->clear.vbuf,

+                                           st->clear.vbuf_slot

+                                             * sizeof(st->clear.vertices),

+                                           sizeof(st->clear.vertices),

+                                           st->clear.vertices);

+

+   /* draw */

+   util_draw_vertex_buffer(pipe,

+                           st->cso_context,

+                           st->clear.vbuf, 

+                           st->clear.vbuf_slot * sizeof(st->clear.vertices),

+                           PIPE_PRIM_TRIANGLE_FAN,

+                           4,  /* verts */

+                           2); /* attribs/vert */

+

+   /* Increment slot */

+   st->clear.vbuf_slot++;

+}

+

+

+

+/**

+ * Do glClear by drawing a quadrilateral.

+ * The vertices of the quad will be computed from the

+ * ctx->DrawBuffer->_X/Ymin/max fields.

+ */

+static void

+clear_with_quad(struct gl_context *ctx,

+                GLboolean color, GLboolean depth, GLboolean stencil)

+{

+   struct st_context *st = st_context(ctx);

+   const struct gl_framebuffer *fb = ctx->DrawBuffer;

+   const GLfloat fb_width = (GLfloat) fb->Width;

+   const GLfloat fb_height = (GLfloat) fb->Height;

+   const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin / fb_width * 2.0f - 1.0f;

+   const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax / fb_width * 2.0f - 1.0f;

+   const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin / fb_height * 2.0f - 1.0f;

+   const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax / fb_height * 2.0f - 1.0f;

+

+   /*

+   printf("%s %s%s%s %f,%f %f,%f\n", __FUNCTION__, 

+	  color ? "color, " : "",

+	  depth ? "depth, " : "",

+	  stencil ? "stencil" : "",

+	  x0, y0,

+	  x1, y1);

+   */

+

+   cso_save_blend(st->cso_context);

+   cso_save_stencil_ref(st->cso_context);

+   cso_save_depth_stencil_alpha(st->cso_context);

+   cso_save_rasterizer(st->cso_context);

+   cso_save_viewport(st->cso_context);

+   cso_save_clip(st->cso_context);

+   cso_save_fragment_shader(st->cso_context);

+   cso_save_vertex_shader(st->cso_context);

+   cso_save_vertex_elements(st->cso_context);

+   cso_save_vertex_buffers(st->cso_context);

+

+   /* blend state: RGBA masking */

+   {

+      struct pipe_blend_state blend;

+      memset(&blend, 0, sizeof(blend));

+      blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;

+      blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;

+      blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;

+      blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;

+      if (color) {

+         if (ctx->Color.ColorMask[0][0])

+            blend.rt[0].colormask |= PIPE_MASK_R;

+         if (ctx->Color.ColorMask[0][1])

+            blend.rt[0].colormask |= PIPE_MASK_G;

+         if (ctx->Color.ColorMask[0][2])

+            blend.rt[0].colormask |= PIPE_MASK_B;

+         if (ctx->Color.ColorMask[0][3])

+            blend.rt[0].colormask |= PIPE_MASK_A;

+         if (st->ctx->Color.DitherFlag)

+            blend.dither = 1;

+      }

+      cso_set_blend(st->cso_context, &blend);

+   }

+

+   /* depth_stencil state: always pass/set to ref value */

+   {

+      struct pipe_depth_stencil_alpha_state depth_stencil;

+      memset(&depth_stencil, 0, sizeof(depth_stencil));

+      if (depth) {

+         depth_stencil.depth.enabled = 1;

+         depth_stencil.depth.writemask = 1;

+         depth_stencil.depth.func = PIPE_FUNC_ALWAYS;

+      }

+

+      if (stencil) {

+         struct pipe_stencil_ref stencil_ref;

+         memset(&stencil_ref, 0, sizeof(stencil_ref));

+         depth_stencil.stencil[0].enabled = 1;

+         depth_stencil.stencil[0].func = PIPE_FUNC_ALWAYS;

+         depth_stencil.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;

+         depth_stencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;

+         depth_stencil.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;

+         depth_stencil.stencil[0].valuemask = 0xff;

+         depth_stencil.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;

+         stencil_ref.ref_value[0] = ctx->Stencil.Clear;

+         cso_set_stencil_ref(st->cso_context, &stencil_ref);

+      }

+

+      cso_set_depth_stencil_alpha(st->cso_context, &depth_stencil);

+   }

+

+   cso_set_vertex_elements(st->cso_context, 2, st->velems_util_draw);

+

+   cso_set_rasterizer(st->cso_context, &st->clear.raster);

+

+   /* viewport state: viewport matching window dims */

+   {

+      const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);

+      struct pipe_viewport_state vp;

+      vp.scale[0] = 0.5f * fb_width;

+      vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f);

+      vp.scale[2] = 1.0f;

+      vp.scale[3] = 1.0f;

+      vp.translate[0] = 0.5f * fb_width;

+      vp.translate[1] = 0.5f * fb_height;

+      vp.translate[2] = 0.0f;

+      vp.translate[3] = 0.0f;

+      cso_set_viewport(st->cso_context, &vp);

+   }

+

+   cso_set_clip(st->cso_context, &st->clear.clip);

+   cso_set_fragment_shader_handle(st->cso_context, st->clear.fs);

+   cso_set_vertex_shader_handle(st->cso_context, st->clear.vs);

+

+   /* draw quad matching scissor rect (XXX verify coord round-off) */

+   draw_quad(st, x0, y0, x1, y1,

+             (GLfloat) ctx->Depth.Clear, ctx->Color.ClearColor);

+

+   /* Restore pipe state */

+   cso_restore_blend(st->cso_context);

+   cso_restore_stencil_ref(st->cso_context);

+   cso_restore_depth_stencil_alpha(st->cso_context);

+   cso_restore_rasterizer(st->cso_context);

+   cso_restore_viewport(st->cso_context);

+   cso_restore_clip(st->cso_context);

+   cso_restore_fragment_shader(st->cso_context);

+   cso_restore_vertex_shader(st->cso_context);

+   cso_restore_vertex_elements(st->cso_context);

+   cso_restore_vertex_buffers(st->cso_context);

+}

+

+

+/**

+ * Determine if we need to clear the depth buffer by drawing a quad.

+ */

+static INLINE GLboolean

+check_clear_color_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb)

+{

+   if (ctx->Scissor.Enabled &&

+       (ctx->Scissor.X != 0 ||

+        ctx->Scissor.Y != 0 ||

+        ctx->Scissor.Width < rb->Width ||

+        ctx->Scissor.Height < rb->Height))

+      return GL_TRUE;

+

+   if (!ctx->Color.ColorMask[0][0] ||

+       !ctx->Color.ColorMask[0][1] ||

+       !ctx->Color.ColorMask[0][2] ||

+       !ctx->Color.ColorMask[0][3])

+      return GL_TRUE;

+

+   return GL_FALSE;

+}

+

+

+/**

+ * Determine if we need to clear the combiend depth/stencil buffer by

+ * drawing a quad.

+ */

+static INLINE GLboolean

+check_clear_depth_stencil_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb)

+{

+   const GLuint stencilMax = 0xff;

+   GLboolean maskStencil

+      = (ctx->Stencil.WriteMask[0] & stencilMax) != stencilMax;

+

+   assert(rb->Format == MESA_FORMAT_S8 ||

+          rb->Format == MESA_FORMAT_Z24_S8 ||

+          rb->Format == MESA_FORMAT_S8_Z24);

+

+   if (ctx->Scissor.Enabled &&

+       (ctx->Scissor.X != 0 ||

+        ctx->Scissor.Y != 0 ||

+        ctx->Scissor.Width < rb->Width ||

+        ctx->Scissor.Height < rb->Height))

+      return GL_TRUE;

+

+   if (maskStencil)

+      return GL_TRUE;

+

+   return GL_FALSE;

+}

+

+

+/**

+ * Determine if we need to clear the depth buffer by drawing a quad.

+ */

+static INLINE GLboolean

+check_clear_depth_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb,

+                            boolean ds_separate)

+{

+   const struct st_renderbuffer *strb = st_renderbuffer(rb);

+   const GLboolean isDS = util_format_is_depth_and_stencil(strb->surface->format);

+

+   if (ctx->Scissor.Enabled &&

+       (ctx->Scissor.X != 0 ||

+        ctx->Scissor.Y != 0 ||

+        ctx->Scissor.Width < rb->Width ||

+        ctx->Scissor.Height < rb->Height))

+      return GL_TRUE;

+

+   if (!ds_separate && isDS && ctx->DrawBuffer->Visual.stencilBits > 0)

+      return GL_TRUE;

+

+   return GL_FALSE;

+}

+

+

+/**

+ * Determine if we need to clear the stencil buffer by drawing a quad.

+ */

+static INLINE GLboolean

+check_clear_stencil_with_quad(struct gl_context *ctx, struct gl_renderbuffer *rb,

+                              boolean ds_separate)

+{

+   const struct st_renderbuffer *strb = st_renderbuffer(rb);

+   const GLboolean isDS = util_format_is_depth_and_stencil(strb->surface->format);

+   const GLuint stencilMax = 0xff;

+   const GLboolean maskStencil

+      = (ctx->Stencil.WriteMask[0] & stencilMax) != stencilMax;

+

+   assert(rb->Format == MESA_FORMAT_S8 ||

+          rb->Format == MESA_FORMAT_Z24_S8 ||

+          rb->Format == MESA_FORMAT_S8_Z24);

+

+   if (maskStencil) 

+      return GL_TRUE;

+

+   if (ctx->Scissor.Enabled &&

+       (ctx->Scissor.X != 0 ||

+        ctx->Scissor.Y != 0 ||

+        ctx->Scissor.Width < rb->Width ||

+        ctx->Scissor.Height < rb->Height))

+      return GL_TRUE;

+

+   /* This is correct, but it is necessary to look at the depth clear

+    * value held in the surface when it comes time to issue the clear,

+    * rather than taking depth and stencil clear values from the

+    * current state.

+    */

+   if (!ds_separate && isDS && ctx->DrawBuffer->Visual.depthBits > 0)

+      return GL_TRUE;

+

+   return GL_FALSE;

+}

+

+

+

+/**

+ * Called when we need to flush.

+ */

+void

+st_flush_clear(struct st_context *st)

+{

+   /* Release vertex buffer to avoid synchronous rendering if we were

+    * to map it in the next frame.

+    */

+   pipe_resource_reference(&st->clear.vbuf, NULL);

+   st->clear.vbuf_slot = 0;

+}

+ 

+

+

+/**

+ * Called via ctx->Driver.Clear()

+ */

+static void

+st_Clear(struct gl_context *ctx, GLbitfield mask)

+{

+   static const GLbitfield BUFFER_BITS_DS

+      = (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);

+   struct st_context *st = st_context(ctx);

+   struct gl_renderbuffer *depthRb

+      = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;

+   struct gl_renderbuffer *stencilRb

+      = ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer;

+   GLbitfield quad_buffers = 0x0;

+   GLbitfield clear_buffers = 0x0;

+   GLuint i;

+

+   /* This makes sure the pipe has the latest scissor, etc values */

+   st_validate_state( st );

+

+   if (mask & BUFFER_BITS_COLOR) {

+      for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {

+         GLuint b = ctx->DrawBuffer->_ColorDrawBufferIndexes[i];

+

+         if (mask & (1 << b)) {

+            struct gl_renderbuffer *rb

+               = ctx->DrawBuffer->Attachment[b].Renderbuffer;

+            struct st_renderbuffer *strb = st_renderbuffer(rb);

+

+            if (!strb || !strb->surface)

+               continue;

+

+            if (check_clear_color_with_quad( ctx, rb ))

+               quad_buffers |= PIPE_CLEAR_COLOR;

+            else

+               clear_buffers |= PIPE_CLEAR_COLOR;

+         }

+      }

+   }

+

+   if ((mask & BUFFER_BITS_DS) == BUFFER_BITS_DS && depthRb == stencilRb) {

+      /* clearing combined depth + stencil */

+      struct st_renderbuffer *strb = st_renderbuffer(depthRb);

+

+      if (strb->surface) {

+         if (check_clear_depth_stencil_with_quad(ctx, depthRb))

+            quad_buffers |= PIPE_CLEAR_DEPTHSTENCIL;

+         else

+            clear_buffers |= PIPE_CLEAR_DEPTHSTENCIL;

+      }

+   }

+   else {

+      /* separate depth/stencil clears */

+      /* I don't think truly separate buffers are actually possible in gallium or hw? */

+      if (mask & BUFFER_BIT_DEPTH) {

+         struct st_renderbuffer *strb = st_renderbuffer(depthRb);

+

+         if (strb->surface) {

+            if (check_clear_depth_with_quad(ctx, depthRb,

+                                            st->clear.enable_ds_separate))

+               quad_buffers |= PIPE_CLEAR_DEPTH;

+            else

+               clear_buffers |= PIPE_CLEAR_DEPTH;

+         }

+      }

+      if (mask & BUFFER_BIT_STENCIL) {

+         struct st_renderbuffer *strb = st_renderbuffer(stencilRb);

+

+         if (strb->surface) {

+            if (check_clear_stencil_with_quad(ctx, stencilRb,

+                                              st->clear.enable_ds_separate))

+               quad_buffers |= PIPE_CLEAR_STENCIL;

+            else

+               clear_buffers |= PIPE_CLEAR_STENCIL;

+         }

+      }

+   }

+

+   /*

+    * If we're going to use clear_with_quad() for any reason, use it for

+    * everything possible.

+    */

+   if (quad_buffers) {

+      quad_buffers |= clear_buffers;

+      clear_with_quad(ctx,

+                      quad_buffers & PIPE_CLEAR_COLOR,

+                      quad_buffers & PIPE_CLEAR_DEPTH,

+                      quad_buffers & PIPE_CLEAR_STENCIL);

+   } else if (clear_buffers) {

+      /* driver cannot know it can clear everything if the buffer

+       * is a combined depth/stencil buffer but this wasn't actually

+       * required from the visual. Hence fix this up to avoid potential

+       * read-modify-write in the driver.

+       */

+      if ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) &&

+          ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&

+          (depthRb == stencilRb) &&

+          (ctx->DrawBuffer->Visual.depthBits == 0 ||

+           ctx->DrawBuffer->Visual.stencilBits == 0))

+         clear_buffers |= PIPE_CLEAR_DEPTHSTENCIL;

+      st->pipe->clear(st->pipe, clear_buffers, ctx->Color.ClearColor,

+                      ctx->Depth.Clear, ctx->Stencil.Clear);

+   }

+   if (mask & BUFFER_BIT_ACCUM)

+      st_clear_accum_buffer(ctx,

+                            ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer);

+}

+

+

+void

+st_init_clear_functions(struct dd_function_table *functions)

+{

+   functions->Clear = st_Clear;

+}

diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index 07527002b..18ac6c8e0 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1,1371 +1,1371 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
- /*
-  * Authors:
-  *   Brian Paul
-  */
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/bufferobj.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "main/mtypes.h"
-#include "main/pack.h"
-#include "main/texformat.h"
-#include "main/texstore.h"
-#include "program/program.h"
-#include "program/prog_print.h"
-#include "program/prog_instruction.h"
-
-#include "st_atom.h"
-#include "st_atom_constbuf.h"
-#include "st_cb_drawpixels.h"
-#include "st_cb_readpixels.h"
-#include "st_cb_fbo.h"
-#include "st_context.h"
-#include "st_debug.h"
-#include "st_format.h"
-#include "st_program.h"
-#include "st_texture.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "tgsi/tgsi_ureg.h"
-#include "util/u_draw_quad.h"
-#include "util/u_format.h"
-#include "util/u_inlines.h"
-#include "util/u_math.h"
-#include "util/u_tile.h"
-#include "cso_cache/cso_context.h"
-
-
-#if FEATURE_drawpix
-
-/**
- * Check if the given program is:
- * 0: MOVE result.color, fragment.color;
- * 1: END;
- */
-static GLboolean
-is_passthrough_program(const struct gl_fragment_program *prog)
-{
-   if (prog->Base.NumInstructions == 2) {
-      const struct prog_instruction *inst = prog->Base.Instructions;
-      if (inst[0].Opcode == OPCODE_MOV &&
-          inst[1].Opcode == OPCODE_END &&
-          inst[0].DstReg.File == PROGRAM_OUTPUT &&
-          inst[0].DstReg.Index == FRAG_RESULT_COLOR &&
-          inst[0].DstReg.WriteMask == WRITEMASK_XYZW &&
-          inst[0].SrcReg[0].File == PROGRAM_INPUT &&
-          inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 &&
-          inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) {
-         return GL_TRUE;
-      }
-   }
-   return GL_FALSE;
-}
-
-
-
-/**
- * Make fragment shader for glDraw/CopyPixels.  This shader is made
- * by combining the pixel transfer shader with the user-defined shader.
- * \param fpIn  the current/incoming fragment program
- * \param fpOut  returns the combined fragment program
- */
-void
-st_make_drawpix_fragment_program(struct st_context *st,
-                                 struct gl_fragment_program *fpIn,
-                                 struct gl_fragment_program **fpOut)
-{
-   struct gl_program *newProg;
-
-   if (is_passthrough_program(fpIn)) {
-      newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx,
-                                             &st->pixel_xfer.program->Base);
-   }
-   else {
-#if 0
-      /* debug */
-      printf("Base program:\n");
-      _mesa_print_program(&fpIn->Base);
-      printf("DrawPix program:\n");
-      _mesa_print_program(&st->pixel_xfer.program->Base.Base);
-#endif
-      newProg = _mesa_combine_programs(st->ctx,
-                                       &st->pixel_xfer.program->Base.Base,
-                                       &fpIn->Base);
-   }
-
-#if 0
-   /* debug */
-   printf("Combined DrawPixels program:\n");
-   _mesa_print_program(newProg);
-   printf("InputsRead: 0x%x\n", newProg->InputsRead);
-   printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);
-   _mesa_print_parameter_list(newProg->Parameters);
-#endif
-
-   *fpOut = (struct gl_fragment_program *) newProg;
-}
-
-
-/**
- * Create fragment program that does a TEX() instruction to get a Z and/or
- * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL.
- * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX).
- * Pass fragment color through as-is.
- * \return pointer to the gl_fragment program
- */
-struct gl_fragment_program *
-st_make_drawpix_z_stencil_program(struct st_context *st,
-                                  GLboolean write_depth,
-                                  GLboolean write_stencil)
-{
-   struct gl_context *ctx = st->ctx;
-   struct gl_program *p;
-   struct gl_fragment_program *fp;
-   GLuint ic = 0;
-   const GLuint shaderIndex = write_depth * 2 + write_stencil;
-
-   assert(shaderIndex < Elements(st->drawpix.shaders));
-
-   if (st->drawpix.shaders[shaderIndex]) {
-      /* already have the proper shader */
-      return st->drawpix.shaders[shaderIndex];
-   }
-
-   /*
-    * Create shader now
-    */
-   p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
-   if (!p)
-      return NULL;
-
-   p->NumInstructions = write_depth ? 2 : 1;
-   p->NumInstructions += write_stencil ? 1 : 0;
-
-   p->Instructions = _mesa_alloc_instructions(p->NumInstructions);
-   if (!p->Instructions) {
-      ctx->Driver.DeleteProgram(ctx, p);
-      return NULL;
-   }
-   _mesa_init_instructions(p->Instructions, p->NumInstructions);
-
-   if (write_depth) {
-      /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */
-      p->Instructions[ic].Opcode = OPCODE_TEX;
-      p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
-      p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;
-      p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;
-      p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
-      p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
-      p->Instructions[ic].TexSrcUnit = 0;
-      p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
-      ic++;
-   }
-
-   if (write_stencil) {
-      /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */
-      p->Instructions[ic].Opcode = OPCODE_TEX;
-      p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
-      p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL;
-      p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y;
-      p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
-      p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
-      p->Instructions[ic].TexSrcUnit = 1;
-      p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
-      ic++;
-   }
-
-   /* END; */
-   p->Instructions[ic++].Opcode = OPCODE_END;
-
-   assert(ic == p->NumInstructions);
-
-   p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0;
-   p->OutputsWritten = 0;
-   if (write_depth)
-      p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH);
-   if (write_stencil)
-      p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL);
-
-   p->SamplersUsed =  0x1;  /* sampler 0 (bit 0) is used */
-   if (write_stencil)
-      p->SamplersUsed |= 1 << 1;
-
-   fp = (struct gl_fragment_program *) p;
-
-   /* save the new shader */
-   st->drawpix.shaders[shaderIndex] = fp;
-
-   return fp;
-}
-
-
-/**
- * Create a simple vertex shader that just passes through the
- * vertex position and texcoord (and optionally, color).
- */
-static void *
-make_passthrough_vertex_shader(struct st_context *st, 
-                               GLboolean passColor)
-{
-   if (!st->drawpix.vert_shaders[passColor]) {
-      struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
-
-      if (ureg == NULL)
-         return NULL;
-
-      /* MOV result.pos, vertex.pos; */
-      ureg_MOV(ureg, 
-               ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ),
-               ureg_DECL_vs_input( ureg, 0 ));
-      
-      /* MOV result.texcoord0, vertex.attr[1]; */
-      ureg_MOV(ureg, 
-               ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),
-               ureg_DECL_vs_input( ureg, 1 ));
-      
-      if (passColor) {
-         /* MOV result.color0, vertex.attr[2]; */
-         ureg_MOV(ureg, 
-                  ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ),
-                  ureg_DECL_vs_input( ureg, 2 ));
-      }
-
-      ureg_END( ureg );
-      
-      st->drawpix.vert_shaders[passColor] = 
-         ureg_create_shader_and_destroy( ureg, st->pipe );
-   }
-
-   return st->drawpix.vert_shaders[passColor];
-}
-
-
-/**
- * Return a texture base format for drawing/copying an image
- * of the given format.
- */
-static GLenum
-base_format(GLenum format)
-{
-   switch (format) {
-   case GL_DEPTH_COMPONENT:
-      return GL_DEPTH_COMPONENT;
-   case GL_DEPTH_STENCIL:
-      return GL_DEPTH_STENCIL;
-   case GL_STENCIL_INDEX:
-      return GL_STENCIL_INDEX;
-   default:
-      return GL_RGBA;
-   }
-}
-
-
-/**
- * Return a texture internalFormat for drawing/copying an image
- * of the given format and type.
- */
-static GLenum
-internal_format(GLenum format, GLenum type)
-{
-   switch (format) {
-   case GL_DEPTH_COMPONENT:
-      return GL_DEPTH_COMPONENT;
-   case GL_DEPTH_STENCIL:
-      return GL_DEPTH_STENCIL;
-   case GL_STENCIL_INDEX:
-      return GL_STENCIL_INDEX;
-   default:
-      if (_mesa_is_integer_format(format)) {
-         switch (type) {
-         case GL_BYTE:
-            return GL_RGBA8I;
-         case GL_UNSIGNED_BYTE:
-            return GL_RGBA8UI;
-         case GL_SHORT:
-            return GL_RGBA16I;
-         case GL_UNSIGNED_SHORT:
-            return GL_RGBA16UI;
-         case GL_INT:
-            return GL_RGBA32I;
-         case GL_UNSIGNED_INT:
-            return GL_RGBA32UI;
-         default:
-            assert(0 && "Unexpected type in internal_format()");
-            return GL_RGBA_INTEGER;
-         }
-      }
-      else {
-         return GL_RGBA;
-      }
-   }
-}
-
-
-/**
- * Create a temporary texture to hold an image of the given size.
- * If width, height are not POT and the driver only handles POT textures,
- * allocate the next larger size of texture that is POT.
- */
-static struct pipe_resource *
-alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
-              enum pipe_format texFormat)
-{
-   struct pipe_resource *pt;
-
-   pt = st_texture_create(st, st->internal_target, texFormat, 0,
-                          width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);
-
-   return pt;
-}
-
-
-/**
- * Make texture containing an image for glDrawPixels image.
- * If 'pixels' is NULL, leave the texture image data undefined.
- */
-static struct pipe_resource *
-make_texture(struct st_context *st,
-	     GLsizei width, GLsizei height, GLenum format, GLenum type,
-	     const struct gl_pixelstore_attrib *unpack,
-	     const GLvoid *pixels)
-{
-   struct gl_context *ctx = st->ctx;
-   struct pipe_context *pipe = st->pipe;
-   gl_format mformat;
-   struct pipe_resource *pt;
-   enum pipe_format pipeFormat;
-   GLuint cpp;
-   GLenum baseFormat, intFormat;
-
-   baseFormat = base_format(format);
-   intFormat = internal_format(format, type);
-
-   mformat = st_ChooseTextureFormat_renderable(ctx, intFormat,
-                                               format, type, GL_FALSE);
-   assert(mformat);
-
-   pipeFormat = st_mesa_format_to_pipe_format(mformat);
-   assert(pipeFormat);
-   cpp = util_format_get_blocksize(pipeFormat);
-
-   pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
-   if (!pixels)
-      return NULL;
-
-   /* alloc temporary texture */
-   pt = alloc_texture(st, width, height, pipeFormat);
-   if (!pt) {
-      _mesa_unmap_pbo_source(ctx, unpack);
-      return NULL;
-   }
-
-   {
-      struct pipe_transfer *transfer;
-      static const GLuint dstImageOffsets = 0;
-      GLboolean success;
-      GLubyte *dest;
-      const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;
-
-      /* we'll do pixel transfer in a fragment shader */
-      ctx->_ImageTransferState = 0x0;
-
-      transfer = pipe_get_transfer(st->pipe, pt, 0, 0,
-                                   PIPE_TRANSFER_WRITE, 0, 0,
-                                   width, height);
-
-      /* map texture transfer */
-      dest = pipe_transfer_map(pipe, transfer);
-
-
-      /* Put image into texture transfer.
-       * Note that the image is actually going to be upside down in
-       * the texture.  We deal with that with texcoords.
-       */
-      success = _mesa_texstore(ctx, 2,           /* dims */
-                               baseFormat,       /* baseInternalFormat */
-                               mformat,          /* gl_format */
-                               dest,             /* dest */
-                               0, 0, 0,          /* dstX/Y/Zoffset */
-                               transfer->stride, /* dstRowStride, bytes */
-                               &dstImageOffsets, /* dstImageOffsets */
-                               width, height, 1, /* size */
-                               format, type,     /* src format/type */
-                               pixels,           /* data source */
-                               unpack);
-
-      /* unmap */
-      pipe_transfer_unmap(pipe, transfer);
-      pipe->transfer_destroy(pipe, transfer);
-
-      assert(success);
-
-      /* restore */
-      ctx->_ImageTransferState = imageTransferStateSave;
-   }
-
-   _mesa_unmap_pbo_source(ctx, unpack);
-
-   return pt;
-}
-
-
-/**
- * Draw quad with texcoords and optional color.
- * Coords are gallium window coords with y=0=top.
- * \param color  may be null
- * \param invertTex  if true, flip texcoords vertically
- */
-static void
-draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
-          GLfloat x1, GLfloat y1, const GLfloat *color,
-          GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */
-
-   /* setup vertex data */
-   {
-      const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-      const GLfloat fb_width = (GLfloat) fb->Width;
-      const GLfloat fb_height = (GLfloat) fb->Height;
-      const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;
-      const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;
-      const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;
-      const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f;
-      const GLfloat sLeft = 0.0f, sRight = maxXcoord;
-      const GLfloat tTop = invertTex ? maxYcoord : 0.0f;
-      const GLfloat tBot = invertTex ? 0.0f : maxYcoord;
-      GLuint i;
-
-      /* upper-left */
-      verts[0][0][0] = clip_x0;    /* v[0].attr[0].x */
-      verts[0][0][1] = clip_y0;    /* v[0].attr[0].y */
-
-      /* upper-right */
-      verts[1][0][0] = clip_x1;
-      verts[1][0][1] = clip_y0;
-
-      /* lower-right */
-      verts[2][0][0] = clip_x1;
-      verts[2][0][1] = clip_y1;
-
-      /* lower-left */
-      verts[3][0][0] = clip_x0;
-      verts[3][0][1] = clip_y1;
-
-      verts[0][1][0] = sLeft; /* v[0].attr[1].S */
-      verts[0][1][1] = tTop;  /* v[0].attr[1].T */
-      verts[1][1][0] = sRight;
-      verts[1][1][1] = tTop;
-      verts[2][1][0] = sRight;
-      verts[2][1][1] = tBot;
-      verts[3][1][0] = sLeft;
-      verts[3][1][1] = tBot;
-
-      /* same for all verts: */
-      if (color) {
-         for (i = 0; i < 4; i++) {
-            verts[i][0][2] = z;         /* v[i].attr[0].z */
-            verts[i][0][3] = 1.0f;      /* v[i].attr[0].w */
-            verts[i][2][0] = color[0];  /* v[i].attr[2].r */
-            verts[i][2][1] = color[1];  /* v[i].attr[2].g */
-            verts[i][2][2] = color[2];  /* v[i].attr[2].b */
-            verts[i][2][3] = color[3];  /* v[i].attr[2].a */
-            verts[i][1][2] = 0.0f;      /* v[i].attr[1].R */
-            verts[i][1][3] = 1.0f;      /* v[i].attr[1].Q */
-         }
-      }
-      else {
-         for (i = 0; i < 4; i++) {
-            verts[i][0][2] = z;    /*Z*/
-            verts[i][0][3] = 1.0f; /*W*/
-            verts[i][1][2] = 0.0f; /*R*/
-            verts[i][1][3] = 1.0f; /*Q*/
-         }
-      }
-   }
-
-   {
-      struct pipe_resource *buf;
-
-      /* allocate/load buffer object with vertex data */
-      buf = pipe_buffer_create(pipe->screen,
-			       PIPE_BIND_VERTEX_BUFFER,
-			       PIPE_USAGE_STATIC,
-                               sizeof(verts));
-      pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts);
-
-      util_draw_vertex_buffer(pipe, st->cso_context, buf, 0,
-                              PIPE_PRIM_QUADS,
-                              4,  /* verts */
-                              3); /* attribs/vert */
-      pipe_resource_reference(&buf, NULL);
-   }
-}
-
-
-
-static void
-draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
-                   GLsizei width, GLsizei height,
-                   GLfloat zoomX, GLfloat zoomY,
-                   struct pipe_sampler_view **sv,
-                   int num_sampler_view,
-                   void *driver_vp,
-                   void *driver_fp,
-                   const GLfloat *color,
-                   GLboolean invertTex,
-                   GLboolean write_depth, GLboolean write_stencil)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct cso_context *cso = st->cso_context;
-   GLfloat x0, y0, x1, y1;
-   GLsizei maxSize;
-   boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT;
-
-   /* limit checks */
-   /* XXX if DrawPixels image is larger than max texture size, break
-    * it up into chunks.
-    */
-   maxSize = 1 << (pipe->screen->get_param(pipe->screen,
-                                        PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
-   assert(width <= maxSize);
-   assert(height <= maxSize);
-
-   cso_save_rasterizer(cso);
-   cso_save_viewport(cso);
-   cso_save_samplers(cso);
-   cso_save_fragment_sampler_views(cso);
-   cso_save_fragment_shader(cso);
-   cso_save_vertex_shader(cso);
-   cso_save_vertex_elements(cso);
-   cso_save_vertex_buffers(cso);
-   if (write_stencil) {
-      cso_save_depth_stencil_alpha(cso);
-      cso_save_blend(cso);
-   }
-
-   /* rasterizer state: just scissor */
-   {
-      struct pipe_rasterizer_state rasterizer;
-      memset(&rasterizer, 0, sizeof(rasterizer));
-      rasterizer.gl_rasterization_rules = 1;
-      rasterizer.scissor = ctx->Scissor.Enabled;
-      cso_set_rasterizer(cso, &rasterizer);
-   }
-
-   if (write_stencil) {
-      /* Stencil writing bypasses the normal fragment pipeline to
-       * disable color writing and set stencil test to always pass.
-       */
-      struct pipe_depth_stencil_alpha_state dsa;
-      struct pipe_blend_state blend;
-
-      /* depth/stencil */
-      memset(&dsa, 0, sizeof(dsa));
-      dsa.stencil[0].enabled = 1;
-      dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
-      dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
-      dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
-      if (write_depth) {
-         /* writing depth+stencil: depth test always passes */
-         dsa.depth.enabled = 1;
-         dsa.depth.writemask = ctx->Depth.Mask;
-         dsa.depth.func = PIPE_FUNC_ALWAYS;
-      }
-      cso_set_depth_stencil_alpha(cso, &dsa);
-
-      /* blend (colormask) */
-      memset(&blend, 0, sizeof(blend));
-      cso_set_blend(cso, &blend);
-   }
-
-   /* fragment shader state: TEX lookup program */
-   cso_set_fragment_shader_handle(cso, driver_fp);
-
-   /* vertex shader state: position + texcoord pass-through */
-   cso_set_vertex_shader_handle(cso, driver_vp);
-
-
-   /* texture sampling state: */
-   {
-      struct pipe_sampler_state sampler;
-      memset(&sampler, 0, sizeof(sampler));
-      sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
-      sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
-      sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;
-      sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
-      sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
-      sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
-      sampler.normalized_coords = normalized;
-
-      cso_single_sampler(cso, 0, &sampler);
-      if (num_sampler_view > 1) {
-         cso_single_sampler(cso, 1, &sampler);
-      }
-      cso_single_sampler_done(cso);
-   }
-
-   /* viewport state: viewport matching window dims */
-   {
-      const float w = (float) ctx->DrawBuffer->Width;
-      const float h = (float) ctx->DrawBuffer->Height;
-      struct pipe_viewport_state vp;
-      vp.scale[0] =  0.5f * w;
-      vp.scale[1] = -0.5f * h;
-      vp.scale[2] = 0.5f;
-      vp.scale[3] = 1.0f;
-      vp.translate[0] = 0.5f * w;
-      vp.translate[1] = 0.5f * h;
-      vp.translate[2] = 0.5f;
-      vp.translate[3] = 0.0f;
-      cso_set_viewport(cso, &vp);
-   }
-
-   cso_set_vertex_elements(cso, 3, st->velems_util_draw);
-
-   /* texture state: */
-   cso_set_fragment_sampler_views(cso, num_sampler_view, sv);
-
-   /* Compute Gallium window coords (y=0=top) with pixel zoom.
-    * Recall that these coords are transformed by the current
-    * vertex shader and viewport transformation.
-    */
-   if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
-      y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);
-      invertTex = !invertTex;
-   }
-
-   x0 = (GLfloat) x;
-   x1 = x + width * ctx->Pixel.ZoomX;
-   y0 = (GLfloat) y;
-   y1 = y + height * ctx->Pixel.ZoomY;
-
-   /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
-   z = z * 2.0 - 1.0;
-
-   draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,
-             normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width,
-             normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height);
-
-   /* restore state */
-   cso_restore_rasterizer(cso);
-   cso_restore_viewport(cso);
-   cso_restore_samplers(cso);
-   cso_restore_fragment_sampler_views(cso);
-   cso_restore_fragment_shader(cso);
-   cso_restore_vertex_shader(cso);
-   cso_restore_vertex_elements(cso);
-   cso_restore_vertex_buffers(cso);
-   if (write_stencil) {
-      cso_restore_depth_stencil_alpha(cso);
-      cso_restore_blend(cso);
-   }
-}
-
-
-/**
- * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we
- * can't use a fragment shader to write stencil values.
- */
-static void
-draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
-                    GLsizei width, GLsizei height, GLenum format, GLenum type,
-                    const struct gl_pixelstore_attrib *unpack,
-                    const GLvoid *pixels)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct st_renderbuffer *strb;
-   enum pipe_transfer_usage usage;
-   struct pipe_transfer *pt;
-   const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;
-   GLint skipPixels;
-   ubyte *stmap;
-   struct gl_pixelstore_attrib clippedUnpack = *unpack;
-
-   if (!zoom) {
-      if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,
-                                 &clippedUnpack)) {
-         /* totally clipped */
-         return;
-      }
-   }
-
-   strb = st_renderbuffer(ctx->DrawBuffer->
-                          Attachment[BUFFER_STENCIL].Renderbuffer);
-
-   if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
-      y = ctx->DrawBuffer->Height - y - height;
-   }
-
-   if(format != GL_DEPTH_STENCIL && 
-      util_format_get_component_bits(strb->format,
-                                     UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
-      usage = PIPE_TRANSFER_READ_WRITE;
-   else
-      usage = PIPE_TRANSFER_WRITE;
-
-   pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0,
-                                     usage, x, y,
-                                     width, height);
-
-   stmap = pipe_transfer_map(pipe, pt);
-
-   pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
-   assert(pixels);
-
-   /* if width > MAX_WIDTH, have to process image in chunks */
-   skipPixels = 0;
-   while (skipPixels < width) {
-      const GLint spanX = skipPixels;
-      const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);
-      GLint row;
-      for (row = 0; row < height; row++) {
-         GLubyte sValues[MAX_WIDTH];
-         GLuint zValues[MAX_WIDTH];
-         GLenum destType = GL_UNSIGNED_BYTE;
-         const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,
-                                                      width, height,
-                                                      format, type,
-                                                      row, skipPixels);
-         _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,
-                                   type, source, &clippedUnpack,
-                                   ctx->_ImageTransferState);
-
-         if (format == GL_DEPTH_STENCIL) {
-            _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues,
-                                    (1 << 24) - 1, type, source,
-                                    &clippedUnpack);
-         }
-
-         if (zoom) {
-            _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with "
-                          "zoom not complete");
-         }
-
-         {
-            GLint spanY;
-
-            if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
-               spanY = height - row - 1;
-            }
-            else {
-               spanY = row;
-            }
-
-            /* now pack the stencil (and Z) values in the dest format */
-            switch (pt->resource->format) {
-            case PIPE_FORMAT_S8_USCALED:
-               {
-                  ubyte *dest = stmap + spanY * pt->stride + spanX;
-                  assert(usage == PIPE_TRANSFER_WRITE);
-                  memcpy(dest, sValues, spanWidth);
-               }
-               break;
-            case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
-               if (format == GL_DEPTH_STENCIL) {
-                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
-                  GLint k;
-                  assert(usage == PIPE_TRANSFER_WRITE);
-                  for (k = 0; k < spanWidth; k++) {
-                     dest[k] = zValues[k] | (sValues[k] << 24);
-                  }
-               }
-               else {
-                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
-                  GLint k;
-                  assert(usage == PIPE_TRANSFER_READ_WRITE);
-                  for (k = 0; k < spanWidth; k++) {
-                     dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);
-                  }
-               }
-               break;
-            case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
-               if (format == GL_DEPTH_STENCIL) {
-                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
-                  GLint k;
-                  assert(usage == PIPE_TRANSFER_WRITE);
-                  for (k = 0; k < spanWidth; k++) {
-                     dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);
-                  }
-               }
-               else {
-                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
-                  GLint k;
-                  assert(usage == PIPE_TRANSFER_READ_WRITE);
-                  for (k = 0; k < spanWidth; k++) {
-                     dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);
-                  }
-               }
-               break;
-            default:
-               assert(0);
-            }
-         }
-      }
-      skipPixels += spanWidth;
-   }
-
-   _mesa_unmap_pbo_source(ctx, &clippedUnpack);
-
-   /* unmap the stencil buffer */
-   pipe_transfer_unmap(pipe, pt);
-   pipe->transfer_destroy(pipe, pt);
-}
-
-
-/**
- * Get fragment program variant for a glDrawPixels or glCopyPixels
- * command for RGBA data.
- */
-static struct st_fp_variant *
-get_color_fp_variant(struct st_context *st)
-{
-   struct gl_context *ctx = st->ctx;
-   struct st_fp_variant_key key;
-   struct st_fp_variant *fpv;
-
-   memset(&key, 0, sizeof(key));
-
-   key.st = st;
-   key.drawpixels = 1;
-   key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 ||
-                       ctx->Pixel.RedScale != 1.0 ||
-                       ctx->Pixel.GreenBias != 0.0 ||
-                       ctx->Pixel.GreenScale != 1.0 ||
-                       ctx->Pixel.BlueBias != 0.0 ||
-                       ctx->Pixel.BlueScale != 1.0 ||
-                       ctx->Pixel.AlphaBias != 0.0 ||
-                       ctx->Pixel.AlphaScale != 1.0);
-   key.pixelMaps = ctx->Pixel.MapColorFlag;
-
-   fpv = st_get_fp_variant(st, st->fp, &key);
-
-   return fpv;
-}
-
-
-/**
- * Get fragment program variant for a glDrawPixels or glCopyPixels
- * command for depth/stencil data.
- */
-static struct st_fp_variant *
-get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth,
-                             GLboolean write_stencil)
-{
-   struct st_fp_variant_key key;
-   struct st_fp_variant *fpv;
-
-   memset(&key, 0, sizeof(key));
-
-   key.st = st;
-   key.drawpixels = 1;
-   key.drawpixels_z = write_depth;
-   key.drawpixels_stencil = write_stencil;
-
-   fpv = st_get_fp_variant(st, st->fp, &key);
-
-   return fpv;
-}
-
-
-/**
- * Called via ctx->Driver.DrawPixels()
- */
-static void
-st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
-              GLsizei width, GLsizei height,
-              GLenum format, GLenum type,
-              const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels)
-{
-   void *driver_vp, *driver_fp;
-   struct st_context *st = st_context(ctx);
-   const GLfloat *color;
-   struct pipe_context *pipe = st->pipe;
-   GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE;
-   struct pipe_sampler_view *sv[2];
-   int num_sampler_view = 1;
-   enum pipe_format stencil_format = PIPE_FORMAT_NONE;
-   struct st_fp_variant *fpv;
-
-   if (format == GL_DEPTH_STENCIL)
-      write_stencil = write_depth = GL_TRUE;
-   else if (format == GL_STENCIL_INDEX)
-      write_stencil = GL_TRUE;
-   else if (format == GL_DEPTH_COMPONENT)
-      write_depth = GL_TRUE;
-
-   if (write_stencil) {
-      enum pipe_format tex_format;
-      /* can we write to stencil if not fallback */
-      if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))
-	 goto stencil_fallback;
-      
-      tex_format = st_choose_format(st->pipe->screen, base_format(format),
-                                    PIPE_TEXTURE_2D,
-				    0, PIPE_BIND_SAMPLER_VIEW);
-      if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
-	 stencil_format = PIPE_FORMAT_X24S8_USCALED;
-      else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM)
-	 stencil_format = PIPE_FORMAT_S8X24_USCALED;
-      else
-	 stencil_format = PIPE_FORMAT_S8_USCALED;
-      if (stencil_format == PIPE_FORMAT_NONE)
-	 goto stencil_fallback;
-   }
-
-   /* Mesa state should be up to date by now */
-   assert(ctx->NewState == 0x0);
-
-   st_validate_state(st);
-
-   /*
-    * Get vertex/fragment shaders
-    */
-   if (write_depth || write_stencil) {
-      fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil);
-
-      driver_fp = fpv->driver_shader;
-
-      driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
-
-      color = ctx->Current.RasterColor;
-   }
-   else {
-      fpv = get_color_fp_variant(st);
-
-      driver_fp = fpv->driver_shader;
-
-      driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
-
-      color = NULL;
-      if (st->pixel_xfer.pixelmap_enabled) {
-	  sv[1] = st->pixel_xfer.pixelmap_sampler_view;
-	  num_sampler_view++;
-      }
-   }
-
-   /* update fragment program constants */
-   st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
-
-   /* draw with textured quad */
-   {
-      struct pipe_resource *pt
-         = make_texture(st, width, height, format, type, unpack, pixels);
-      if (pt) {
-         sv[0] = st_create_texture_sampler_view(st->pipe, pt);
-
-         if (sv[0]) {
-	    if (write_stencil) {
-	       sv[1] = st_create_texture_sampler_view_format(st->pipe, pt,
-                                                             stencil_format);
-	       num_sampler_view++;
-	    }
-
-            draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
-                               width, height,
-                               ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
-                               sv,
-                               num_sampler_view,
-                               driver_vp,
-                               driver_fp,
-                               color, GL_FALSE, write_depth, write_stencil);
-            pipe_sampler_view_reference(&sv[0], NULL);
-            if (num_sampler_view > 1)
-               pipe_sampler_view_reference(&sv[1], NULL);
-         }
-         pipe_resource_reference(&pt, NULL);
-      }
-   }
-   return;
-
-stencil_fallback:
-   draw_stencil_pixels(ctx, x, y, width, height, format, type,
-		       unpack, pixels);
-}
-
-
-
-/**
- * Software fallback for glCopyPixels(GL_STENCIL).
- */
-static void
-copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
-                    GLsizei width, GLsizei height,
-                    GLint dstx, GLint dsty)
-{
-   struct st_renderbuffer *rbDraw;
-   struct pipe_context *pipe = st_context(ctx)->pipe;
-   enum pipe_transfer_usage usage;
-   struct pipe_transfer *ptDraw;
-   ubyte *drawMap;
-   ubyte *buffer;
-   int i;
-
-   buffer = malloc(width * height * sizeof(ubyte));
-   if (!buffer) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)");
-      return;
-   }
-
-   /* Get the dest renderbuffer.  If there's a wrapper, use the
-    * underlying renderbuffer.
-    */
-   rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);
-   if (rbDraw->Base.Wrapped)
-      rbDraw = st_renderbuffer(rbDraw->Base.Wrapped);
-
-   /* this will do stencil pixel transfer ops */
-   st_read_stencil_pixels(ctx, srcx, srcy, width, height,
-                          GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,
-                          &ctx->DefaultPacking, buffer);
-
-   if (0) {
-      /* debug code: dump stencil values */
-      GLint row, col;
-      for (row = 0; row < height; row++) {
-         printf("%3d: ", row);
-         for (col = 0; col < width; col++) {
-            printf("%02x ", buffer[col + row * width]);
-         }
-         printf("\n");
-      }
-   }
-
-   if (util_format_get_component_bits(rbDraw->format,
-                                     UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
-      usage = PIPE_TRANSFER_READ_WRITE;
-   else
-      usage = PIPE_TRANSFER_WRITE;
-
-   if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
-      dsty = rbDraw->Base.Height - dsty - height;
-   }
-
-   ptDraw = pipe_get_transfer(st_context(ctx)->pipe,
-                              rbDraw->texture, 0, 0,
-                              usage, dstx, dsty,
-                              width, height);
-
-   assert(util_format_get_blockwidth(ptDraw->resource->format) == 1);
-   assert(util_format_get_blockheight(ptDraw->resource->format) == 1);
-
-   /* map the stencil buffer */
-   drawMap = pipe_transfer_map(pipe, ptDraw);
-
-   /* draw */
-   /* XXX PixelZoom not handled yet */
-   for (i = 0; i < height; i++) {
-      ubyte *dst;
-      const ubyte *src;
-      int y;
-
-      y = i;
-
-      if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
-         y = height - y - 1;
-      }
-
-      dst = drawMap + y * ptDraw->stride;
-      src = buffer + i * width;
-
-      switch (ptDraw->resource->format) {
-      case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
-         {
-            uint *dst4 = (uint *) dst;
-            int j;
-            assert(usage == PIPE_TRANSFER_READ_WRITE);
-            for (j = 0; j < width; j++) {
-               *dst4 = (*dst4 & 0xffffff) | (src[j] << 24);
-               dst4++;
-            }
-         }
-         break;
-      case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
-         {
-            uint *dst4 = (uint *) dst;
-            int j;
-            assert(usage == PIPE_TRANSFER_READ_WRITE);
-            for (j = 0; j < width; j++) {
-               *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff);
-               dst4++;
-            }
-         }
-         break;
-      case PIPE_FORMAT_S8_USCALED:
-         assert(usage == PIPE_TRANSFER_WRITE);
-         memcpy(dst, src, width);
-         break;
-      default:
-         assert(0);
-      }
-   }
-
-   free(buffer);
-
-   /* unmap the stencil buffer */
-   pipe_transfer_unmap(pipe, ptDraw);
-   pipe->transfer_destroy(pipe, ptDraw);
-}
-
-
-static void
-st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
-              GLsizei width, GLsizei height,
-              GLint dstx, GLint dsty, GLenum type)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_screen *screen = pipe->screen;
-   struct st_renderbuffer *rbRead;
-   void *driver_vp, *driver_fp;
-   struct pipe_resource *pt;
-   struct pipe_sampler_view *sv[2];
-   int num_sampler_view = 1;
-   GLfloat *color;
-   enum pipe_format srcFormat, texFormat;
-   GLboolean invertTex = GL_FALSE;
-   GLint readX, readY, readW, readH;
-   GLuint sample_count;
-   struct gl_pixelstore_attrib pack = ctx->DefaultPacking;
-   struct st_fp_variant *fpv;
-
-   st_validate_state(st);
-
-   if (type == GL_STENCIL) {
-      /* can't use texturing to do stencil */
-      copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
-      return;
-   }
-
-   /*
-    * Get vertex/fragment shaders
-    */
-   if (type == GL_COLOR) {
-      rbRead = st_get_color_read_renderbuffer(ctx);
-      color = NULL;
-
-      fpv = get_color_fp_variant(st);
-      driver_fp = fpv->driver_shader;
-
-      driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
-
-      if (st->pixel_xfer.pixelmap_enabled) {
-	  sv[1] = st->pixel_xfer.pixelmap_sampler_view;
-	  num_sampler_view++;
-      }
-   }
-   else {
-      assert(type == GL_DEPTH);
-      rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
-      color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
-
-      fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);
-      driver_fp = fpv->driver_shader;
-
-      driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
-   }
-
-   /* update fragment program constants */
-   st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
-
-
-   if (rbRead->Base.Wrapped)
-      rbRead = st_renderbuffer(rbRead->Base.Wrapped);
-
-   sample_count = rbRead->texture->nr_samples;
-   /* I believe this would be legal, presumably would need to do a resolve
-      for color, and for depth/stencil spec says to just use one of the
-      depth/stencil samples per pixel? Need some transfer clarifications. */
-   assert(sample_count < 2);
-
-   srcFormat = rbRead->texture->format;
-
-   if (screen->is_format_supported(screen, srcFormat, st->internal_target,
-                                   sample_count,
-                                   PIPE_BIND_SAMPLER_VIEW, 0)) {
-      texFormat = srcFormat;
-   }
-   else {
-      /* srcFormat can't be used as a texture format */
-      if (type == GL_DEPTH) {
-         texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
-                                      st->internal_target, sample_count,
-                                      PIPE_BIND_DEPTH_STENCIL);
-         assert(texFormat != PIPE_FORMAT_NONE);
-      }
-      else {
-         /* default color format */
-         texFormat = st_choose_format(screen, GL_RGBA, st->internal_target,
-                                      sample_count, PIPE_BIND_SAMPLER_VIEW);
-         assert(texFormat != PIPE_FORMAT_NONE);
-      }
-   }
-
-   /* Invert src region if needed */
-   if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
-      srcy = ctx->ReadBuffer->Height - srcy - height;
-      invertTex = !invertTex;
-   }
-
-   /* Clip the read region against the src buffer bounds.
-    * We'll still allocate a temporary buffer/texture for the original
-    * src region size but we'll only read the region which is on-screen.
-    * This may mean that we draw garbage pixels into the dest region, but
-    * that's expected.
-    */
-   readX = srcx;
-   readY = srcy;
-   readW = width;
-   readH = height;
-   _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);
-   readW = MAX2(0, readW);
-   readH = MAX2(0, readH);
-
-   /* alloc temporary texture */
-   pt = alloc_texture(st, width, height, texFormat);
-   if (!pt)
-      return;
-
-   sv[0] = st_create_texture_sampler_view(st->pipe, pt);
-   if (!sv[0]) {
-      pipe_resource_reference(&pt, NULL);
-      return;
-   }
-
-   /* Make temporary texture which is a copy of the src region.
-    */
-   if (srcFormat == texFormat) {
-      struct pipe_box src_box;
-      u_box_2d(readX, readY, readW, readH, &src_box);
-    /* copy source framebuffer surface into mipmap/texture */
-      pipe->resource_copy_region(pipe,
-                                 pt,                                /* dest tex */
-                                 0,
-                                 pack.SkipPixels, pack.SkipRows, 0, /* dest pos */
-                                 rbRead->texture,                   /* src tex */
-                                 0,
-                                 &src_box);
-
-   }
-   else {
-      /* CPU-based fallback/conversion */
-      struct pipe_transfer *ptRead =
-         pipe_get_transfer(st->pipe, rbRead->texture, 0, 0,
-                           PIPE_TRANSFER_READ,
-                           readX, readY, readW, readH);
-      struct pipe_transfer *ptTex;
-      enum pipe_transfer_usage transfer_usage;
-
-      if (ST_DEBUG & DEBUG_FALLBACK)
-         debug_printf("%s: fallback processing\n", __FUNCTION__);
-
-      if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))
-         transfer_usage = PIPE_TRANSFER_READ_WRITE;
-      else
-         transfer_usage = PIPE_TRANSFER_WRITE;
-
-      ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage,
-                                0, 0, width, height);
-
-      /* copy image from ptRead surface to ptTex surface */
-      if (type == GL_COLOR) {
-         /* alternate path using get/put_tile() */
-         GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
-         enum pipe_format readFormat, drawFormat;
-         readFormat = util_format_linear(rbRead->texture->format);
-         drawFormat = util_format_linear(pt->format);
-         pipe_get_tile_rgba_format(pipe, ptRead, readX, readY, readW, readH,
-                                   readFormat, buf);
-         pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
-                                   readW, readH, drawFormat, buf);
-         free(buf);
-      }
-      else {
-         /* GL_DEPTH */
-         GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
-         pipe_get_tile_z(pipe, ptRead, readX, readY, readW, readH, buf);
-         pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
-                         readW, readH, buf);
-         free(buf);
-      }
-
-      pipe->transfer_destroy(pipe, ptRead);
-      pipe->transfer_destroy(pipe, ptTex);
-   }
-
-   /* OK, the texture 'pt' contains the src image/pixels.  Now draw a
-    * textured quad with that texture.
-    */
-   draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
-                      width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
-                      sv,
-                      num_sampler_view,
-                      driver_vp, 
-                      driver_fp,
-                      color, invertTex, GL_FALSE, GL_FALSE);
-
-   pipe_resource_reference(&pt, NULL);
-   pipe_sampler_view_reference(&sv[0], NULL);
-}
-
-
-
-void st_init_drawpixels_functions(struct dd_function_table *functions)
-{
-   functions->DrawPixels = st_DrawPixels;
-   functions->CopyPixels = st_CopyPixels;
-}
-
-
-void
-st_destroy_drawpix(struct st_context *st)
-{
-   GLuint i;
-
-   for (i = 0; i < Elements(st->drawpix.shaders); i++) {
-      if (st->drawpix.shaders[i])
-         _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL);
-   }
-
-   st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
-   if (st->drawpix.vert_shaders[0])
-      ureg_free_tokens(st->drawpix.vert_shaders[0]);
-   if (st->drawpix.vert_shaders[1])
-      ureg_free_tokens(st->drawpix.vert_shaders[1]);
-}
-
-#endif /* FEATURE_drawpix */
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+ /*

+  * Authors:

+  *   Brian Paul

+  */

+

+#include "main/imports.h"

+#include "main/image.h"

+#include "main/bufferobj.h"

+#include "main/macros.h"

+#include "main/mfeatures.h"

+#include "main/mtypes.h"

+#include "main/pack.h"

+#include "main/texformat.h"

+#include "main/texstore.h"

+#include "program/program.h"

+#include "program/prog_print.h"

+#include "program/prog_instruction.h"

+

+#include "st_atom.h"

+#include "st_atom_constbuf.h"

+#include "st_cb_drawpixels.h"

+#include "st_cb_readpixels.h"

+#include "st_cb_fbo.h"

+#include "st_context.h"

+#include "st_debug.h"

+#include "st_format.h"

+#include "st_program.h"

+#include "st_texture.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "tgsi/tgsi_ureg.h"

+#include "util/u_draw_quad.h"

+#include "util/u_format.h"

+#include "util/u_inlines.h"

+#include "util/u_math.h"

+#include "util/u_tile.h"

+#include "cso_cache/cso_context.h"

+

+

+#if FEATURE_drawpix

+

+/**

+ * Check if the given program is:

+ * 0: MOVE result.color, fragment.color;

+ * 1: END;

+ */

+static GLboolean

+is_passthrough_program(const struct gl_fragment_program *prog)

+{

+   if (prog->Base.NumInstructions == 2) {

+      const struct prog_instruction *inst = prog->Base.Instructions;

+      if (inst[0].Opcode == OPCODE_MOV &&

+          inst[1].Opcode == OPCODE_END &&

+          inst[0].DstReg.File == PROGRAM_OUTPUT &&

+          inst[0].DstReg.Index == FRAG_RESULT_COLOR &&

+          inst[0].DstReg.WriteMask == WRITEMASK_XYZW &&

+          inst[0].SrcReg[0].File == PROGRAM_INPUT &&

+          inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 &&

+          inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) {

+         return GL_TRUE;

+      }

+   }

+   return GL_FALSE;

+}

+

+

+

+/**

+ * Make fragment shader for glDraw/CopyPixels.  This shader is made

+ * by combining the pixel transfer shader with the user-defined shader.

+ * \param fpIn  the current/incoming fragment program

+ * \param fpOut  returns the combined fragment program

+ */

+void

+st_make_drawpix_fragment_program(struct st_context *st,

+                                 struct gl_fragment_program *fpIn,

+                                 struct gl_fragment_program **fpOut)

+{

+   struct gl_program *newProg;

+

+   if (is_passthrough_program(fpIn)) {

+      newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx,

+                                             &st->pixel_xfer.program->Base);

+   }

+   else {

+#if 0

+      /* debug */

+      printf("Base program:\n");

+      _mesa_print_program(&fpIn->Base);

+      printf("DrawPix program:\n");

+      _mesa_print_program(&st->pixel_xfer.program->Base.Base);

+#endif

+      newProg = _mesa_combine_programs(st->ctx,

+                                       &st->pixel_xfer.program->Base.Base,

+                                       &fpIn->Base);

+   }

+

+#if 0

+   /* debug */

+   printf("Combined DrawPixels program:\n");

+   _mesa_print_program(newProg);

+   printf("InputsRead: 0x%x\n", newProg->InputsRead);

+   printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);

+   _mesa_print_parameter_list(newProg->Parameters);

+#endif

+

+   *fpOut = (struct gl_fragment_program *) newProg;

+}

+

+

+/**

+ * Create fragment program that does a TEX() instruction to get a Z and/or

+ * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL.

+ * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX).

+ * Pass fragment color through as-is.

+ * \return pointer to the gl_fragment program

+ */

+struct gl_fragment_program *

+st_make_drawpix_z_stencil_program(struct st_context *st,

+                                  GLboolean write_depth,

+                                  GLboolean write_stencil)

+{

+   struct gl_context *ctx = st->ctx;

+   struct gl_program *p;

+   struct gl_fragment_program *fp;

+   GLuint ic = 0;

+   const GLuint shaderIndex = write_depth * 2 + write_stencil;

+

+   assert(shaderIndex < Elements(st->drawpix.shaders));

+

+   if (st->drawpix.shaders[shaderIndex]) {

+      /* already have the proper shader */

+      return st->drawpix.shaders[shaderIndex];

+   }

+

+   /*

+    * Create shader now

+    */

+   p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);

+   if (!p)

+      return NULL;

+

+   p->NumInstructions = write_depth ? 2 : 1;

+   p->NumInstructions += write_stencil ? 1 : 0;

+

+   p->Instructions = _mesa_alloc_instructions(p->NumInstructions);

+   if (!p->Instructions) {

+      ctx->Driver.DeleteProgram(ctx, p);

+      return NULL;

+   }

+   _mesa_init_instructions(p->Instructions, p->NumInstructions);

+

+   if (write_depth) {

+      /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */

+      p->Instructions[ic].Opcode = OPCODE_TEX;

+      p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;

+      p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;

+      p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;

+      p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;

+      p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;

+      p->Instructions[ic].TexSrcUnit = 0;

+      p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;

+      ic++;

+   }

+

+   if (write_stencil) {

+      /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */

+      p->Instructions[ic].Opcode = OPCODE_TEX;

+      p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;

+      p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL;

+      p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y;

+      p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;

+      p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;

+      p->Instructions[ic].TexSrcUnit = 1;

+      p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;

+      ic++;

+   }

+

+   /* END; */

+   p->Instructions[ic++].Opcode = OPCODE_END;

+

+   assert(ic == p->NumInstructions);

+

+   p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0;

+   p->OutputsWritten = 0;

+   if (write_depth)

+      p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH);

+   if (write_stencil)

+      p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL);

+

+   p->SamplersUsed =  0x1;  /* sampler 0 (bit 0) is used */

+   if (write_stencil)

+      p->SamplersUsed |= 1 << 1;

+

+   fp = (struct gl_fragment_program *) p;

+

+   /* save the new shader */

+   st->drawpix.shaders[shaderIndex] = fp;

+

+   return fp;

+}

+

+

+/**

+ * Create a simple vertex shader that just passes through the

+ * vertex position and texcoord (and optionally, color).

+ */

+static void *

+make_passthrough_vertex_shader(struct st_context *st, 

+                               GLboolean passColor)

+{

+   if (!st->drawpix.vert_shaders[passColor]) {

+      struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );

+

+      if (ureg == NULL)

+         return NULL;

+

+      /* MOV result.pos, vertex.pos; */

+      ureg_MOV(ureg, 

+               ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ),

+               ureg_DECL_vs_input( ureg, 0 ));

+      

+      /* MOV result.texcoord0, vertex.attr[1]; */

+      ureg_MOV(ureg, 

+               ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),

+               ureg_DECL_vs_input( ureg, 1 ));

+      

+      if (passColor) {

+         /* MOV result.color0, vertex.attr[2]; */

+         ureg_MOV(ureg, 

+                  ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ),

+                  ureg_DECL_vs_input( ureg, 2 ));

+      }

+

+      ureg_END( ureg );

+      

+      st->drawpix.vert_shaders[passColor] = 

+         ureg_create_shader_and_destroy( ureg, st->pipe );

+   }

+

+   return st->drawpix.vert_shaders[passColor];

+}

+

+

+/**

+ * Return a texture base format for drawing/copying an image

+ * of the given format.

+ */

+static GLenum

+base_format(GLenum format)

+{

+   switch (format) {

+   case GL_DEPTH_COMPONENT:

+      return GL_DEPTH_COMPONENT;

+   case GL_DEPTH_STENCIL:

+      return GL_DEPTH_STENCIL;

+   case GL_STENCIL_INDEX:

+      return GL_STENCIL_INDEX;

+   default:

+      return GL_RGBA;

+   }

+}

+

+

+/**

+ * Return a texture internalFormat for drawing/copying an image

+ * of the given format and type.

+ */

+static GLenum

+internal_format(GLenum format, GLenum type)

+{

+   switch (format) {

+   case GL_DEPTH_COMPONENT:

+      return GL_DEPTH_COMPONENT;

+   case GL_DEPTH_STENCIL:

+      return GL_DEPTH_STENCIL;

+   case GL_STENCIL_INDEX:

+      return GL_STENCIL_INDEX;

+   default:

+      if (_mesa_is_integer_format(format)) {

+         switch (type) {

+         case GL_BYTE:

+            return GL_RGBA8I;

+         case GL_UNSIGNED_BYTE:

+            return GL_RGBA8UI;

+         case GL_SHORT:

+            return GL_RGBA16I;

+         case GL_UNSIGNED_SHORT:

+            return GL_RGBA16UI;

+         case GL_INT:

+            return GL_RGBA32I;

+         case GL_UNSIGNED_INT:

+            return GL_RGBA32UI;

+         default:

+            assert(0 && "Unexpected type in internal_format()");

+            return GL_RGBA_INTEGER;

+         }

+      }

+      else {

+         return GL_RGBA;

+      }

+   }

+}

+

+

+/**

+ * Create a temporary texture to hold an image of the given size.

+ * If width, height are not POT and the driver only handles POT textures,

+ * allocate the next larger size of texture that is POT.

+ */

+static struct pipe_resource *

+alloc_texture(struct st_context *st, GLsizei width, GLsizei height,

+              enum pipe_format texFormat)

+{

+   struct pipe_resource *pt;

+

+   pt = st_texture_create(st, st->internal_target, texFormat, 0,

+                          width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);

+

+   return pt;

+}

+

+

+/**

+ * Make texture containing an image for glDrawPixels image.

+ * If 'pixels' is NULL, leave the texture image data undefined.

+ */

+static struct pipe_resource *

+make_texture(struct st_context *st,

+	     GLsizei width, GLsizei height, GLenum format, GLenum type,

+	     const struct gl_pixelstore_attrib *unpack,

+	     const GLvoid *pixels)

+{

+   struct gl_context *ctx = st->ctx;

+   struct pipe_context *pipe = st->pipe;

+   gl_format mformat;

+   struct pipe_resource *pt;

+   enum pipe_format pipeFormat;

+   GLuint cpp;

+   GLenum baseFormat, intFormat;

+

+   baseFormat = base_format(format);

+   intFormat = internal_format(format, type);

+

+   mformat = st_ChooseTextureFormat_renderable(ctx, intFormat,

+                                               format, type, GL_FALSE);

+   assert(mformat);

+

+   pipeFormat = st_mesa_format_to_pipe_format(mformat);

+   assert(pipeFormat);

+   cpp = util_format_get_blocksize(pipeFormat);

+

+   pixels = _mesa_map_pbo_source(ctx, unpack, pixels);

+   if (!pixels)

+      return NULL;

+

+   /* alloc temporary texture */

+   pt = alloc_texture(st, width, height, pipeFormat);

+   if (!pt) {

+      _mesa_unmap_pbo_source(ctx, unpack);

+      return NULL;

+   }

+

+   {

+      struct pipe_transfer *transfer;

+      static const GLuint dstImageOffsets = 0;

+      GLboolean success;

+      GLubyte *dest;

+      const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;

+

+      /* we'll do pixel transfer in a fragment shader */

+      ctx->_ImageTransferState = 0x0;

+

+      transfer = pipe_get_transfer(st->pipe, pt, 0, 0,

+                                   PIPE_TRANSFER_WRITE, 0, 0,

+                                   width, height);

+

+      /* map texture transfer */

+      dest = pipe_transfer_map(pipe, transfer);

+

+

+      /* Put image into texture transfer.

+       * Note that the image is actually going to be upside down in

+       * the texture.  We deal with that with texcoords.

+       */

+      success = _mesa_texstore(ctx, 2,           /* dims */

+                               baseFormat,       /* baseInternalFormat */

+                               mformat,          /* gl_format */

+                               dest,             /* dest */

+                               0, 0, 0,          /* dstX/Y/Zoffset */

+                               transfer->stride, /* dstRowStride, bytes */

+                               &dstImageOffsets, /* dstImageOffsets */

+                               width, height, 1, /* size */

+                               format, type,     /* src format/type */

+                               pixels,           /* data source */

+                               unpack);

+

+      /* unmap */

+      pipe_transfer_unmap(pipe, transfer);

+      pipe->transfer_destroy(pipe, transfer);

+

+      assert(success);

+

+      /* restore */

+      ctx->_ImageTransferState = imageTransferStateSave;

+   }

+

+   _mesa_unmap_pbo_source(ctx, unpack);

+

+   return pt;

+}

+

+

+/**

+ * Draw quad with texcoords and optional color.

+ * Coords are gallium window coords with y=0=top.

+ * \param color  may be null

+ * \param invertTex  if true, flip texcoords vertically

+ */

+static void

+draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,

+          GLfloat x1, GLfloat y1, const GLfloat *color,

+          GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */

+

+   /* setup vertex data */

+   {

+      const struct gl_framebuffer *fb = st->ctx->DrawBuffer;

+      const GLfloat fb_width = (GLfloat) fb->Width;

+      const GLfloat fb_height = (GLfloat) fb->Height;

+      const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;

+      const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;

+      const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;

+      const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f;

+      const GLfloat sLeft = 0.0f, sRight = maxXcoord;

+      const GLfloat tTop = invertTex ? maxYcoord : 0.0f;

+      const GLfloat tBot = invertTex ? 0.0f : maxYcoord;

+      GLuint i;

+

+      /* upper-left */

+      verts[0][0][0] = clip_x0;    /* v[0].attr[0].x */

+      verts[0][0][1] = clip_y0;    /* v[0].attr[0].y */

+

+      /* upper-right */

+      verts[1][0][0] = clip_x1;

+      verts[1][0][1] = clip_y0;

+

+      /* lower-right */

+      verts[2][0][0] = clip_x1;

+      verts[2][0][1] = clip_y1;

+

+      /* lower-left */

+      verts[3][0][0] = clip_x0;

+      verts[3][0][1] = clip_y1;

+

+      verts[0][1][0] = sLeft; /* v[0].attr[1].S */

+      verts[0][1][1] = tTop;  /* v[0].attr[1].T */

+      verts[1][1][0] = sRight;

+      verts[1][1][1] = tTop;

+      verts[2][1][0] = sRight;

+      verts[2][1][1] = tBot;

+      verts[3][1][0] = sLeft;

+      verts[3][1][1] = tBot;

+

+      /* same for all verts: */

+      if (color) {

+         for (i = 0; i < 4; i++) {

+            verts[i][0][2] = z;         /* v[i].attr[0].z */

+            verts[i][0][3] = 1.0f;      /* v[i].attr[0].w */

+            verts[i][2][0] = color[0];  /* v[i].attr[2].r */

+            verts[i][2][1] = color[1];  /* v[i].attr[2].g */

+            verts[i][2][2] = color[2];  /* v[i].attr[2].b */

+            verts[i][2][3] = color[3];  /* v[i].attr[2].a */

+            verts[i][1][2] = 0.0f;      /* v[i].attr[1].R */

+            verts[i][1][3] = 1.0f;      /* v[i].attr[1].Q */

+         }

+      }

+      else {

+         for (i = 0; i < 4; i++) {

+            verts[i][0][2] = z;    /*Z*/

+            verts[i][0][3] = 1.0f; /*W*/

+            verts[i][1][2] = 0.0f; /*R*/

+            verts[i][1][3] = 1.0f; /*Q*/

+         }

+      }

+   }

+

+   {

+      struct pipe_resource *buf;

+

+      /* allocate/load buffer object with vertex data */

+      buf = pipe_buffer_create(pipe->screen,

+			       PIPE_BIND_VERTEX_BUFFER,

+			       PIPE_USAGE_STATIC,

+                               sizeof(verts));

+      pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts);

+

+      util_draw_vertex_buffer(pipe, st->cso_context, buf, 0,

+                              PIPE_PRIM_QUADS,

+                              4,  /* verts */

+                              3); /* attribs/vert */

+      pipe_resource_reference(&buf, NULL);

+   }

+}

+

+

+

+static void

+draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,

+                   GLsizei width, GLsizei height,

+                   GLfloat zoomX, GLfloat zoomY,

+                   struct pipe_sampler_view **sv,

+                   int num_sampler_view,

+                   void *driver_vp,

+                   void *driver_fp,

+                   const GLfloat *color,

+                   GLboolean invertTex,

+                   GLboolean write_depth, GLboolean write_stencil)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct cso_context *cso = st->cso_context;

+   GLfloat x0, y0, x1, y1;

+   GLsizei maxSize;

+   boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT;

+

+   /* limit checks */

+   /* XXX if DrawPixels image is larger than max texture size, break

+    * it up into chunks.

+    */

+   maxSize = 1 << (pipe->screen->get_param(pipe->screen,

+                                        PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);

+   assert(width <= maxSize);

+   assert(height <= maxSize);

+

+   cso_save_rasterizer(cso);

+   cso_save_viewport(cso);

+   cso_save_samplers(cso);

+   cso_save_fragment_sampler_views(cso);

+   cso_save_fragment_shader(cso);

+   cso_save_vertex_shader(cso);

+   cso_save_vertex_elements(cso);

+   cso_save_vertex_buffers(cso);

+   if (write_stencil) {

+      cso_save_depth_stencil_alpha(cso);

+      cso_save_blend(cso);

+   }

+

+   /* rasterizer state: just scissor */

+   {

+      struct pipe_rasterizer_state rasterizer;

+      memset(&rasterizer, 0, sizeof(rasterizer));

+      rasterizer.gl_rasterization_rules = 1;

+      rasterizer.scissor = ctx->Scissor.Enabled;

+      cso_set_rasterizer(cso, &rasterizer);

+   }

+

+   if (write_stencil) {

+      /* Stencil writing bypasses the normal fragment pipeline to

+       * disable color writing and set stencil test to always pass.

+       */

+      struct pipe_depth_stencil_alpha_state dsa;

+      struct pipe_blend_state blend;

+

+      /* depth/stencil */

+      memset(&dsa, 0, sizeof(dsa));

+      dsa.stencil[0].enabled = 1;

+      dsa.stencil[0].func = PIPE_FUNC_ALWAYS;

+      dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;

+      dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;

+      if (write_depth) {

+         /* writing depth+stencil: depth test always passes */

+         dsa.depth.enabled = 1;

+         dsa.depth.writemask = ctx->Depth.Mask;

+         dsa.depth.func = PIPE_FUNC_ALWAYS;

+      }

+      cso_set_depth_stencil_alpha(cso, &dsa);

+

+      /* blend (colormask) */

+      memset(&blend, 0, sizeof(blend));

+      cso_set_blend(cso, &blend);

+   }

+

+   /* fragment shader state: TEX lookup program */

+   cso_set_fragment_shader_handle(cso, driver_fp);

+

+   /* vertex shader state: position + texcoord pass-through */

+   cso_set_vertex_shader_handle(cso, driver_vp);

+

+

+   /* texture sampling state: */

+   {

+      struct pipe_sampler_state sampler;

+      memset(&sampler, 0, sizeof(sampler));

+      sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;

+      sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;

+      sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;

+      sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;

+      sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;

+      sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;

+      sampler.normalized_coords = normalized;

+

+      cso_single_sampler(cso, 0, &sampler);

+      if (num_sampler_view > 1) {

+         cso_single_sampler(cso, 1, &sampler);

+      }

+      cso_single_sampler_done(cso);

+   }

+

+   /* viewport state: viewport matching window dims */

+   {

+      const float w = (float) ctx->DrawBuffer->Width;

+      const float h = (float) ctx->DrawBuffer->Height;

+      struct pipe_viewport_state vp;

+      vp.scale[0] =  0.5f * w;

+      vp.scale[1] = -0.5f * h;

+      vp.scale[2] = 0.5f;

+      vp.scale[3] = 1.0f;

+      vp.translate[0] = 0.5f * w;

+      vp.translate[1] = 0.5f * h;

+      vp.translate[2] = 0.5f;

+      vp.translate[3] = 0.0f;

+      cso_set_viewport(cso, &vp);

+   }

+

+   cso_set_vertex_elements(cso, 3, st->velems_util_draw);

+

+   /* texture state: */

+   cso_set_fragment_sampler_views(cso, num_sampler_view, sv);

+

+   /* Compute Gallium window coords (y=0=top) with pixel zoom.

+    * Recall that these coords are transformed by the current

+    * vertex shader and viewport transformation.

+    */

+   if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {

+      y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);

+      invertTex = !invertTex;

+   }

+

+   x0 = (GLfloat) x;

+   x1 = x + width * ctx->Pixel.ZoomX;

+   y0 = (GLfloat) y;

+   y1 = y + height * ctx->Pixel.ZoomY;

+

+   /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */

+   z = z * 2.0 - 1.0;

+

+   draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,

+             normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width,

+             normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height);

+

+   /* restore state */

+   cso_restore_rasterizer(cso);

+   cso_restore_viewport(cso);

+   cso_restore_samplers(cso);

+   cso_restore_fragment_sampler_views(cso);

+   cso_restore_fragment_shader(cso);

+   cso_restore_vertex_shader(cso);

+   cso_restore_vertex_elements(cso);

+   cso_restore_vertex_buffers(cso);

+   if (write_stencil) {

+      cso_restore_depth_stencil_alpha(cso);

+      cso_restore_blend(cso);

+   }

+}

+

+

+/**

+ * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we

+ * can't use a fragment shader to write stencil values.

+ */

+static void

+draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,

+                    GLsizei width, GLsizei height, GLenum format, GLenum type,

+                    const struct gl_pixelstore_attrib *unpack,

+                    const GLvoid *pixels)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct st_renderbuffer *strb;

+   enum pipe_transfer_usage usage;

+   struct pipe_transfer *pt;

+   const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;

+   GLint skipPixels;

+   ubyte *stmap;

+   struct gl_pixelstore_attrib clippedUnpack = *unpack;

+

+   if (!zoom) {

+      if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,

+                                 &clippedUnpack)) {

+         /* totally clipped */

+         return;

+      }

+   }

+

+   strb = st_renderbuffer(ctx->DrawBuffer->

+                          Attachment[BUFFER_STENCIL].Renderbuffer);

+

+   if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {

+      y = ctx->DrawBuffer->Height - y - height;

+   }

+

+   if(format != GL_DEPTH_STENCIL && 

+      util_format_get_component_bits(strb->format,

+                                     UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)

+      usage = PIPE_TRANSFER_READ_WRITE;

+   else

+      usage = PIPE_TRANSFER_WRITE;

+

+   pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0,

+                                     usage, x, y,

+                                     width, height);

+

+   stmap = pipe_transfer_map(pipe, pt);

+

+   pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);

+   assert(pixels);

+

+   /* if width > MAX_WIDTH, have to process image in chunks */

+   skipPixels = 0;

+   while (skipPixels < width) {

+      const GLint spanX = skipPixels;

+      const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);

+      GLint row;

+      for (row = 0; row < height; row++) {

+         GLubyte sValues[MAX_WIDTH];

+         GLuint zValues[MAX_WIDTH];

+         GLenum destType = GL_UNSIGNED_BYTE;

+         const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,

+                                                      width, height,

+                                                      format, type,

+                                                      row, skipPixels);

+         _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,

+                                   type, source, &clippedUnpack,

+                                   ctx->_ImageTransferState);

+

+         if (format == GL_DEPTH_STENCIL) {

+            _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues,

+                                    (1 << 24) - 1, type, source,

+                                    &clippedUnpack);

+         }

+

+         if (zoom) {

+            _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with "

+                          "zoom not complete");

+         }

+

+         {

+            GLint spanY;

+

+            if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {

+               spanY = height - row - 1;

+            }

+            else {

+               spanY = row;

+            }

+

+            /* now pack the stencil (and Z) values in the dest format */

+            switch (pt->resource->format) {

+            case PIPE_FORMAT_S8_USCALED:

+               {

+                  ubyte *dest = stmap + spanY * pt->stride + spanX;

+                  assert(usage == PIPE_TRANSFER_WRITE);

+                  memcpy(dest, sValues, spanWidth);

+               }

+               break;

+            case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

+               if (format == GL_DEPTH_STENCIL) {

+                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);

+                  GLint k;

+                  assert(usage == PIPE_TRANSFER_WRITE);

+                  for (k = 0; k < spanWidth; k++) {

+                     dest[k] = zValues[k] | (sValues[k] << 24);

+                  }

+               }

+               else {

+                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);

+                  GLint k;

+                  assert(usage == PIPE_TRANSFER_READ_WRITE);

+                  for (k = 0; k < spanWidth; k++) {

+                     dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);

+                  }

+               }

+               break;

+            case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

+               if (format == GL_DEPTH_STENCIL) {

+                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);

+                  GLint k;

+                  assert(usage == PIPE_TRANSFER_WRITE);

+                  for (k = 0; k < spanWidth; k++) {

+                     dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);

+                  }

+               }

+               else {

+                  uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);

+                  GLint k;

+                  assert(usage == PIPE_TRANSFER_READ_WRITE);

+                  for (k = 0; k < spanWidth; k++) {

+                     dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);

+                  }

+               }

+               break;

+            default:

+               assert(0);

+            }

+         }

+      }

+      skipPixels += spanWidth;

+   }

+

+   _mesa_unmap_pbo_source(ctx, &clippedUnpack);

+

+   /* unmap the stencil buffer */

+   pipe_transfer_unmap(pipe, pt);

+   pipe->transfer_destroy(pipe, pt);

+}

+

+

+/**

+ * Get fragment program variant for a glDrawPixels or glCopyPixels

+ * command for RGBA data.

+ */

+static struct st_fp_variant *

+get_color_fp_variant(struct st_context *st)

+{

+   struct gl_context *ctx = st->ctx;

+   struct st_fp_variant_key key;

+   struct st_fp_variant *fpv;

+

+   memset(&key, 0, sizeof(key));

+

+   key.st = st;

+   key.drawpixels = 1;

+   key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 ||

+                       ctx->Pixel.RedScale != 1.0 ||

+                       ctx->Pixel.GreenBias != 0.0 ||

+                       ctx->Pixel.GreenScale != 1.0 ||

+                       ctx->Pixel.BlueBias != 0.0 ||

+                       ctx->Pixel.BlueScale != 1.0 ||

+                       ctx->Pixel.AlphaBias != 0.0 ||

+                       ctx->Pixel.AlphaScale != 1.0);

+   key.pixelMaps = ctx->Pixel.MapColorFlag;

+

+   fpv = st_get_fp_variant(st, st->fp, &key);

+

+   return fpv;

+}

+

+

+/**

+ * Get fragment program variant for a glDrawPixels or glCopyPixels

+ * command for depth/stencil data.

+ */

+static struct st_fp_variant *

+get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth,

+                             GLboolean write_stencil)

+{

+   struct st_fp_variant_key key;

+   struct st_fp_variant *fpv;

+

+   memset(&key, 0, sizeof(key));

+

+   key.st = st;

+   key.drawpixels = 1;

+   key.drawpixels_z = write_depth;

+   key.drawpixels_stencil = write_stencil;

+

+   fpv = st_get_fp_variant(st, st->fp, &key);

+

+   return fpv;

+}

+

+

+/**

+ * Called via ctx->Driver.DrawPixels()

+ */

+static void

+st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,

+              GLsizei width, GLsizei height,

+              GLenum format, GLenum type,

+              const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels)

+{

+   void *driver_vp, *driver_fp;

+   struct st_context *st = st_context(ctx);

+   const GLfloat *color;

+   struct pipe_context *pipe = st->pipe;

+   GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE;

+   struct pipe_sampler_view *sv[2];

+   int num_sampler_view = 1;

+   enum pipe_format stencil_format = PIPE_FORMAT_NONE;

+   struct st_fp_variant *fpv;

+

+   if (format == GL_DEPTH_STENCIL)

+      write_stencil = write_depth = GL_TRUE;

+   else if (format == GL_STENCIL_INDEX)

+      write_stencil = GL_TRUE;

+   else if (format == GL_DEPTH_COMPONENT)

+      write_depth = GL_TRUE;

+

+   if (write_stencil) {

+      enum pipe_format tex_format;

+      /* can we write to stencil if not fallback */

+      if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))

+	 goto stencil_fallback;

+      

+      tex_format = st_choose_format(st->pipe->screen, base_format(format),

+                                    PIPE_TEXTURE_2D,

+				    0, PIPE_BIND_SAMPLER_VIEW);

+      if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)

+	 stencil_format = PIPE_FORMAT_X24S8_USCALED;

+      else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM)

+	 stencil_format = PIPE_FORMAT_S8X24_USCALED;

+      else

+	 stencil_format = PIPE_FORMAT_S8_USCALED;

+      if (stencil_format == PIPE_FORMAT_NONE)

+	 goto stencil_fallback;

+   }

+

+   /* Mesa state should be up to date by now */

+   assert(ctx->NewState == 0x0);

+

+   st_validate_state(st);

+

+   /*

+    * Get vertex/fragment shaders

+    */

+   if (write_depth || write_stencil) {

+      fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil);

+

+      driver_fp = fpv->driver_shader;

+

+      driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);

+

+      color = ctx->Current.RasterColor;

+   }

+   else {

+      fpv = get_color_fp_variant(st);

+

+      driver_fp = fpv->driver_shader;

+

+      driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);

+

+      color = NULL;

+      if (st->pixel_xfer.pixelmap_enabled) {

+	  sv[1] = st->pixel_xfer.pixelmap_sampler_view;

+	  num_sampler_view++;

+      }

+   }

+

+   /* update fragment program constants */

+   st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);

+

+   /* draw with textured quad */

+   {

+      struct pipe_resource *pt

+         = make_texture(st, width, height, format, type, unpack, pixels);

+      if (pt) {

+         sv[0] = st_create_texture_sampler_view(st->pipe, pt);

+

+         if (sv[0]) {

+	    if (write_stencil) {

+	       sv[1] = st_create_texture_sampler_view_format(st->pipe, pt,

+                                                             stencil_format);

+	       num_sampler_view++;

+	    }

+

+            draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],

+                               width, height,

+                               ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,

+                               sv,

+                               num_sampler_view,

+                               driver_vp,

+                               driver_fp,

+                               color, GL_FALSE, write_depth, write_stencil);

+            pipe_sampler_view_reference(&sv[0], NULL);

+            if (num_sampler_view > 1)

+               pipe_sampler_view_reference(&sv[1], NULL);

+         }

+         pipe_resource_reference(&pt, NULL);

+      }

+   }

+   return;

+

+stencil_fallback:

+   draw_stencil_pixels(ctx, x, y, width, height, format, type,

+		       unpack, pixels);

+}

+

+

+

+/**

+ * Software fallback for glCopyPixels(GL_STENCIL).

+ */

+static void

+copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,

+                    GLsizei width, GLsizei height,

+                    GLint dstx, GLint dsty)

+{

+   struct st_renderbuffer *rbDraw;

+   struct pipe_context *pipe = st_context(ctx)->pipe;

+   enum pipe_transfer_usage usage;

+   struct pipe_transfer *ptDraw;

+   ubyte *drawMap;

+   ubyte *buffer;

+   int i;

+

+   buffer = malloc(width * height * sizeof(ubyte));

+   if (!buffer) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)");

+      return;

+   }

+

+   /* Get the dest renderbuffer.  If there's a wrapper, use the

+    * underlying renderbuffer.

+    */

+   rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);

+   if (rbDraw->Base.Wrapped)

+      rbDraw = st_renderbuffer(rbDraw->Base.Wrapped);

+

+   /* this will do stencil pixel transfer ops */

+   st_read_stencil_pixels(ctx, srcx, srcy, width, height,

+                          GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,

+                          &ctx->DefaultPacking, buffer);

+

+   if (0) {

+      /* debug code: dump stencil values */

+      GLint row, col;

+      for (row = 0; row < height; row++) {

+         printf("%3d: ", row);

+         for (col = 0; col < width; col++) {

+            printf("%02x ", buffer[col + row * width]);

+         }

+         printf("\n");

+      }

+   }

+

+   if (util_format_get_component_bits(rbDraw->format,

+                                     UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)

+      usage = PIPE_TRANSFER_READ_WRITE;

+   else

+      usage = PIPE_TRANSFER_WRITE;

+

+   if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {

+      dsty = rbDraw->Base.Height - dsty - height;

+   }

+

+   ptDraw = pipe_get_transfer(st_context(ctx)->pipe,

+                              rbDraw->texture, 0, 0,

+                              usage, dstx, dsty,

+                              width, height);

+

+   assert(util_format_get_blockwidth(ptDraw->resource->format) == 1);

+   assert(util_format_get_blockheight(ptDraw->resource->format) == 1);

+

+   /* map the stencil buffer */

+   drawMap = pipe_transfer_map(pipe, ptDraw);

+

+   /* draw */

+   /* XXX PixelZoom not handled yet */

+   for (i = 0; i < height; i++) {

+      ubyte *dst;

+      const ubyte *src;

+      int y;

+

+      y = i;

+

+      if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {

+         y = height - y - 1;

+      }

+

+      dst = drawMap + y * ptDraw->stride;

+      src = buffer + i * width;

+

+      switch (ptDraw->resource->format) {

+      case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

+         {

+            uint *dst4 = (uint *) dst;

+            int j;

+            assert(usage == PIPE_TRANSFER_READ_WRITE);

+            for (j = 0; j < width; j++) {

+               *dst4 = (*dst4 & 0xffffff) | (src[j] << 24);

+               dst4++;

+            }

+         }

+         break;

+      case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

+         {

+            uint *dst4 = (uint *) dst;

+            int j;

+            assert(usage == PIPE_TRANSFER_READ_WRITE);

+            for (j = 0; j < width; j++) {

+               *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff);

+               dst4++;

+            }

+         }

+         break;

+      case PIPE_FORMAT_S8_USCALED:

+         assert(usage == PIPE_TRANSFER_WRITE);

+         memcpy(dst, src, width);

+         break;

+      default:

+         assert(0);

+      }

+   }

+

+   free(buffer);

+

+   /* unmap the stencil buffer */

+   pipe_transfer_unmap(pipe, ptDraw);

+   pipe->transfer_destroy(pipe, ptDraw);

+}

+

+

+static void

+st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,

+              GLsizei width, GLsizei height,

+              GLint dstx, GLint dsty, GLenum type)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_screen *screen = pipe->screen;

+   struct st_renderbuffer *rbRead;

+   void *driver_vp, *driver_fp;

+   struct pipe_resource *pt;

+   struct pipe_sampler_view *sv[2];

+   int num_sampler_view = 1;

+   GLfloat *color;

+   enum pipe_format srcFormat, texFormat;

+   GLboolean invertTex = GL_FALSE;

+   GLint readX, readY, readW, readH;

+   GLuint sample_count;

+   struct gl_pixelstore_attrib pack = ctx->DefaultPacking;

+   struct st_fp_variant *fpv;

+

+   st_validate_state(st);

+

+   if (type == GL_STENCIL) {

+      /* can't use texturing to do stencil */

+      copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);

+      return;

+   }

+

+   /*

+    * Get vertex/fragment shaders

+    */

+   if (type == GL_COLOR) {

+      rbRead = st_get_color_read_renderbuffer(ctx);

+      color = NULL;

+

+      fpv = get_color_fp_variant(st);

+      driver_fp = fpv->driver_shader;

+

+      driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);

+

+      if (st->pixel_xfer.pixelmap_enabled) {

+	  sv[1] = st->pixel_xfer.pixelmap_sampler_view;

+	  num_sampler_view++;

+      }

+   }

+   else {

+      assert(type == GL_DEPTH);

+      rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);

+      color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];

+

+      fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);

+      driver_fp = fpv->driver_shader;

+

+      driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);

+   }

+

+   /* update fragment program constants */

+   st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);

+

+

+   if (rbRead->Base.Wrapped)

+      rbRead = st_renderbuffer(rbRead->Base.Wrapped);

+

+   sample_count = rbRead->texture->nr_samples;

+   /* I believe this would be legal, presumably would need to do a resolve

+      for color, and for depth/stencil spec says to just use one of the

+      depth/stencil samples per pixel? Need some transfer clarifications. */

+   assert(sample_count < 2);

+

+   srcFormat = rbRead->texture->format;

+

+   if (screen->is_format_supported(screen, srcFormat, st->internal_target,

+                                   sample_count,

+                                   PIPE_BIND_SAMPLER_VIEW, 0)) {

+      texFormat = srcFormat;

+   }

+   else {

+      /* srcFormat can't be used as a texture format */

+      if (type == GL_DEPTH) {

+         texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,

+                                      st->internal_target, sample_count,

+                                      PIPE_BIND_DEPTH_STENCIL);

+         assert(texFormat != PIPE_FORMAT_NONE);

+      }

+      else {

+         /* default color format */

+         texFormat = st_choose_format(screen, GL_RGBA, st->internal_target,

+                                      sample_count, PIPE_BIND_SAMPLER_VIEW);

+         assert(texFormat != PIPE_FORMAT_NONE);

+      }

+   }

+

+   /* Invert src region if needed */

+   if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {

+      srcy = ctx->ReadBuffer->Height - srcy - height;

+      invertTex = !invertTex;

+   }

+

+   /* Clip the read region against the src buffer bounds.

+    * We'll still allocate a temporary buffer/texture for the original

+    * src region size but we'll only read the region which is on-screen.

+    * This may mean that we draw garbage pixels into the dest region, but

+    * that's expected.

+    */

+   readX = srcx;

+   readY = srcy;

+   readW = width;

+   readH = height;

+   _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);

+   readW = MAX2(0, readW);

+   readH = MAX2(0, readH);

+

+   /* alloc temporary texture */

+   pt = alloc_texture(st, width, height, texFormat);

+   if (!pt)

+      return;

+

+   sv[0] = st_create_texture_sampler_view(st->pipe, pt);

+   if (!sv[0]) {

+      pipe_resource_reference(&pt, NULL);

+      return;

+   }

+

+   /* Make temporary texture which is a copy of the src region.

+    */

+   if (srcFormat == texFormat) {

+      struct pipe_box src_box;

+      u_box_2d(readX, readY, readW, readH, &src_box);

+    /* copy source framebuffer surface into mipmap/texture */

+      pipe->resource_copy_region(pipe,

+                                 pt,                                /* dest tex */

+                                 0,

+                                 pack.SkipPixels, pack.SkipRows, 0, /* dest pos */

+                                 rbRead->texture,                   /* src tex */

+                                 0,

+                                 &src_box);

+

+   }

+   else {

+      /* CPU-based fallback/conversion */

+      struct pipe_transfer *ptRead =

+         pipe_get_transfer(st->pipe, rbRead->texture, 0, 0,

+                           PIPE_TRANSFER_READ,

+                           readX, readY, readW, readH);

+      struct pipe_transfer *ptTex;

+      enum pipe_transfer_usage transfer_usage;

+

+      if (ST_DEBUG & DEBUG_FALLBACK)

+         debug_printf("%s: fallback processing\n", __FUNCTION__);

+

+      if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))

+         transfer_usage = PIPE_TRANSFER_READ_WRITE;

+      else

+         transfer_usage = PIPE_TRANSFER_WRITE;

+

+      ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage,

+                                0, 0, width, height);

+

+      /* copy image from ptRead surface to ptTex surface */

+      if (type == GL_COLOR) {

+         /* alternate path using get/put_tile() */

+         GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));

+         enum pipe_format readFormat, drawFormat;

+         readFormat = util_format_linear(rbRead->texture->format);

+         drawFormat = util_format_linear(pt->format);

+         pipe_get_tile_rgba_format(pipe, ptRead, readX, readY, readW, readH,

+                                   readFormat, buf);

+         pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows,

+                                   readW, readH, drawFormat, buf);

+         free(buf);

+      }

+      else {

+         /* GL_DEPTH */

+         GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));

+         pipe_get_tile_z(pipe, ptRead, readX, readY, readW, readH, buf);

+         pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,

+                         readW, readH, buf);

+         free(buf);

+      }

+

+      pipe->transfer_destroy(pipe, ptRead);

+      pipe->transfer_destroy(pipe, ptTex);

+   }

+

+   /* OK, the texture 'pt' contains the src image/pixels.  Now draw a

+    * textured quad with that texture.

+    */

+   draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],

+                      width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,

+                      sv,

+                      num_sampler_view,

+                      driver_vp, 

+                      driver_fp,

+                      color, invertTex, GL_FALSE, GL_FALSE);

+

+   pipe_resource_reference(&pt, NULL);

+   pipe_sampler_view_reference(&sv[0], NULL);

+}

+

+

+

+void st_init_drawpixels_functions(struct dd_function_table *functions)

+{

+   functions->DrawPixels = st_DrawPixels;

+   functions->CopyPixels = st_CopyPixels;

+}

+

+

+void

+st_destroy_drawpix(struct st_context *st)

+{

+   GLuint i;

+

+   for (i = 0; i < Elements(st->drawpix.shaders); i++) {

+      if (st->drawpix.shaders[i])

+         _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL);

+   }

+

+   st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);

+   if (st->drawpix.vert_shaders[0])

+      ureg_free_tokens(st->drawpix.vert_shaders[0]);

+   if (st->drawpix.vert_shaders[1])

+      ureg_free_tokens(st->drawpix.vert_shaders[1]);

+}

+

+#endif /* FEATURE_drawpix */

diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c
index 86ceb9d78..db299eb8d 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c
@@ -1,307 +1,307 @@
-/**************************************************************************
- * 
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-
-/**
- * Implementation of glDrawTex() for GL_OES_draw_tex
- */
-
-
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "program/program.h"
-#include "program/prog_print.h"
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_drawtex.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "pipe/p_shader_tokens.h"
-#include "util/u_draw_quad.h"
-#include "util/u_simple_shaders.h"
-
-#include "cso_cache/cso_context.h"
-
-
-#if FEATURE_OES_draw_texture
-
-
-struct cached_shader
-{
-   void *handle;
-
-   uint num_attribs;
-   uint semantic_names[2 + MAX_TEXTURE_UNITS];
-   uint semantic_indexes[2 + MAX_TEXTURE_UNITS];
-};
-
-#define MAX_SHADERS (2 * MAX_TEXTURE_UNITS)
-
-/**
- * Simple linear list cache.
- * Most of the time there'll only be one cached shader.
- */
-static struct cached_shader CachedShaders[MAX_SHADERS];
-static GLuint NumCachedShaders = 0;
-
-
-static void *
-lookup_shader(struct pipe_context *pipe,
-              uint num_attribs,
-              const uint *semantic_names,
-              const uint *semantic_indexes)
-{
-   GLuint i, j;
-
-   /* look for existing shader with same attributes */
-   for (i = 0; i < NumCachedShaders; i++) {
-      if (CachedShaders[i].num_attribs == num_attribs) {
-         GLboolean match = GL_TRUE;
-         for (j = 0; j < num_attribs; j++) {
-            if (semantic_names[j] != CachedShaders[i].semantic_names[j] ||
-                semantic_indexes[j] != CachedShaders[i].semantic_indexes[j]) {
-               match = GL_FALSE;
-               break;
-            }
-         }
-         if (match)
-            return CachedShaders[i].handle;
-      }
-   }
-
-   /* not found - create new one now */
-   if (NumCachedShaders >= MAX_SHADERS) {
-      return NULL;
-   }
-
-   CachedShaders[i].num_attribs = num_attribs;
-   for (j = 0; j < num_attribs; j++) {
-      CachedShaders[i].semantic_names[j] = semantic_names[j];
-      CachedShaders[i].semantic_indexes[j] = semantic_indexes[j];
-   }
-
-   CachedShaders[i].handle =
-      util_make_vertex_passthrough_shader(pipe,
-                                          num_attribs,
-                                          semantic_names,
-                                          semantic_indexes);
-   NumCachedShaders++;
-
-   return CachedShaders[i].handle;
-}
-
-static void
-st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
-           GLfloat width, GLfloat height)
-{
-   struct st_context *st = ctx->st;
-   struct pipe_context *pipe = st->pipe;
-   struct cso_context *cso = ctx->st->cso_context;
-   struct pipe_resource *vbuffer;
-   struct pipe_transfer *vbuffer_transfer;
-   GLuint i, numTexCoords, numAttribs;
-   GLboolean emitColor;
-   uint semantic_names[2 + MAX_TEXTURE_UNITS];
-   uint semantic_indexes[2 + MAX_TEXTURE_UNITS];
-   struct pipe_vertex_element velements[2 + MAX_TEXTURE_UNITS];
-   GLbitfield inputs = VERT_BIT_POS;
-
-   st_validate_state(st);
-
-   /* determine if we need vertex color */
-   if (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL0)
-      emitColor = GL_TRUE;
-   else
-      emitColor = GL_FALSE;
-
-   /* determine how many enabled sets of texcoords */
-   numTexCoords = 0;
-   for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
-      if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) {
-         inputs |= VERT_BIT_TEX(i);
-         numTexCoords++;
-      }
-   }
-
-   /* total number of attributes per vertex */
-   numAttribs = 1 + emitColor + numTexCoords;
-
-
-   /* create the vertex buffer */
-   vbuffer = pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER,
-                                PIPE_USAGE_STREAM,
-                                numAttribs * 4 * 4 * sizeof(GLfloat));
-
-   /* load vertex buffer */
-   {
-#define SET_ATTRIB(VERT, ATTR, X, Y, Z, W)                              \
-      do {                                                              \
-         GLuint k = (((VERT) * numAttribs + (ATTR)) * 4);               \
-         assert(k < 4 * 4 * numAttribs);                                \
-         vbuf[k + 0] = X;                                               \
-         vbuf[k + 1] = Y;                                               \
-         vbuf[k + 2] = Z;                                               \
-         vbuf[k + 3] = W;                                               \
-      } while (0)
-
-      const GLfloat x0 = x, y0 = y, x1 = x + width, y1 = y + height;
-      GLfloat *vbuf = (GLfloat *) pipe_buffer_map(pipe, vbuffer,
-                                                  PIPE_TRANSFER_WRITE,
-                                                  &vbuffer_transfer);
-      GLuint attr;
-      
-      z = CLAMP(z, 0.0f, 1.0f);
-
-      /* positions (in clip coords) */
-      {
-         const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-         const GLfloat fb_width = (GLfloat)fb->Width;
-         const GLfloat fb_height = (GLfloat)fb->Height;
-
-         const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0);
-         const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);
-         const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0);
-         const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0);
-
-         SET_ATTRIB(0, 0, clip_x0, clip_y0, z, 1.0f);   /* lower left */
-         SET_ATTRIB(1, 0, clip_x1, clip_y0, z, 1.0f);   /* lower right */
-         SET_ATTRIB(2, 0, clip_x1, clip_y1, z, 1.0f);   /* upper right */
-         SET_ATTRIB(3, 0, clip_x0, clip_y1, z, 1.0f);   /* upper left */
-
-         semantic_names[0] = TGSI_SEMANTIC_POSITION;
-         semantic_indexes[0] = 0;
-      }
-
-      /* colors */
-      if (emitColor) {
-         const GLfloat *c = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
-         SET_ATTRIB(0, 1, c[0], c[1], c[2], c[3]);
-         SET_ATTRIB(1, 1, c[0], c[1], c[2], c[3]);
-         SET_ATTRIB(2, 1, c[0], c[1], c[2], c[3]);
-         SET_ATTRIB(3, 1, c[0], c[1], c[2], c[3]);
-         semantic_names[1] = TGSI_SEMANTIC_COLOR;
-         semantic_indexes[1] = 0;
-         attr = 2;
-      }
-      else {
-         attr = 1;
-      }
-
-      /* texcoords */
-      for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
-         if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) {
-            struct gl_texture_object *obj = ctx->Texture.Unit[i]._Current;
-            struct gl_texture_image *img = obj->Image[0][obj->BaseLevel];
-            const GLfloat wt = (GLfloat) img->Width;
-            const GLfloat ht = (GLfloat) img->Height;
-            const GLfloat s0 = obj->CropRect[0] / wt;
-            const GLfloat t0 = obj->CropRect[1] / ht;
-            const GLfloat s1 = (obj->CropRect[0] + obj->CropRect[2]) / wt;
-            const GLfloat t1 = (obj->CropRect[1] + obj->CropRect[3]) / ht;
-
-            /*printf("crop texcoords: %g, %g .. %g, %g\n", s0, t0, s1, t1);*/
-            SET_ATTRIB(0, attr, s0, t0, 0.0f, 1.0f);  /* lower left */
-            SET_ATTRIB(1, attr, s1, t0, 0.0f, 1.0f);  /* lower right */
-            SET_ATTRIB(2, attr, s1, t1, 0.0f, 1.0f);  /* upper right */
-            SET_ATTRIB(3, attr, s0, t1, 0.0f, 1.0f);  /* upper left */
-
-            semantic_names[attr] = TGSI_SEMANTIC_GENERIC;
-            semantic_indexes[attr] = 0;
-
-            attr++;
-         }
-      }
-
-      pipe_buffer_unmap(pipe, vbuffer_transfer);
-
-#undef SET_ATTRIB
-   }
-
-
-   cso_save_viewport(cso);
-   cso_save_vertex_shader(cso);
-   cso_save_vertex_elements(cso);
-   cso_save_vertex_buffers(cso);
-
-   {
-      void *vs = lookup_shader(pipe, numAttribs,
-                               semantic_names, semantic_indexes);
-      cso_set_vertex_shader_handle(cso, vs);
-   }
-
-   for (i = 0; i < numAttribs; i++) {
-      velements[i].src_offset = i * 4 * sizeof(float);
-      velements[i].instance_divisor = 0;
-      velements[i].vertex_buffer_index = 0;
-      velements[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
-   }
-   cso_set_vertex_elements(cso, numAttribs, velements);
-
-   /* viewport state: viewport matching window dims */
-   {
-      const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-      const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
-      const GLfloat width = (GLfloat)fb->Width;
-      const GLfloat height = (GLfloat)fb->Height;
-      struct pipe_viewport_state vp;
-      vp.scale[0] =  0.5f * width;
-      vp.scale[1] = height * (invert ? -0.5f : 0.5f);
-      vp.scale[2] = 1.0f;
-      vp.scale[3] = 1.0f;
-      vp.translate[0] = 0.5f * width;
-      vp.translate[1] = 0.5f * height;
-      vp.translate[2] = 0.0f;
-      vp.translate[3] = 0.0f;
-      cso_set_viewport(cso, &vp);
-   }
-
-
-   util_draw_vertex_buffer(pipe, cso, vbuffer,
-                           0,  /* offset */
-                           PIPE_PRIM_TRIANGLE_FAN,
-                           4,  /* verts */
-                           numAttribs); /* attribs/vert */
-
-
-   pipe_resource_reference(&vbuffer, NULL);
-
-   /* restore state */
-   cso_restore_viewport(cso);
-   cso_restore_vertex_shader(cso);
-   cso_restore_vertex_elements(cso);
-   cso_restore_vertex_buffers(cso);
-}
-
-
-void
-st_init_drawtex_functions(struct dd_function_table *functions)
-{
-   functions->DrawTex = st_DrawTex;
-}
-
-
-/**
- * Free any cached shaders
- */
-void
-st_destroy_drawtex(struct st_context *st)
-{
-   GLuint i;
-   for (i = 0; i < NumCachedShaders; i++) {
-      cso_delete_vertex_shader(st->cso_context, CachedShaders[i].handle);
-   }
-   NumCachedShaders = 0;
-}
-
-
-#endif /* FEATURE_OES_draw_texture */
+/**************************************************************************

+ * 

+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ *

+ **************************************************************************/

+

+

+/**

+ * Implementation of glDrawTex() for GL_OES_draw_tex

+ */

+

+

+

+#include "main/imports.h"

+#include "main/image.h"

+#include "main/macros.h"

+#include "main/mfeatures.h"

+#include "program/program.h"

+#include "program/prog_print.h"

+

+#include "st_context.h"

+#include "st_atom.h"

+#include "st_cb_drawtex.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "util/u_inlines.h"

+#include "pipe/p_shader_tokens.h"

+#include "util/u_draw_quad.h"

+#include "util/u_simple_shaders.h"

+

+#include "cso_cache/cso_context.h"

+

+

+#if FEATURE_OES_draw_texture

+

+

+struct cached_shader

+{

+   void *handle;

+

+   uint num_attribs;

+   uint semantic_names[2 + MAX_TEXTURE_UNITS];

+   uint semantic_indexes[2 + MAX_TEXTURE_UNITS];

+};

+

+#define MAX_SHADERS (2 * MAX_TEXTURE_UNITS)

+

+/**

+ * Simple linear list cache.

+ * Most of the time there'll only be one cached shader.

+ */

+static struct cached_shader CachedShaders[MAX_SHADERS];

+static GLuint NumCachedShaders = 0;

+

+

+static void *

+lookup_shader(struct pipe_context *pipe,

+              uint num_attribs,

+              const uint *semantic_names,

+              const uint *semantic_indexes)

+{

+   GLuint i, j;

+

+   /* look for existing shader with same attributes */

+   for (i = 0; i < NumCachedShaders; i++) {

+      if (CachedShaders[i].num_attribs == num_attribs) {

+         GLboolean match = GL_TRUE;

+         for (j = 0; j < num_attribs; j++) {

+            if (semantic_names[j] != CachedShaders[i].semantic_names[j] ||

+                semantic_indexes[j] != CachedShaders[i].semantic_indexes[j]) {

+               match = GL_FALSE;

+               break;

+            }

+         }

+         if (match)

+            return CachedShaders[i].handle;

+      }

+   }

+

+   /* not found - create new one now */

+   if (NumCachedShaders >= MAX_SHADERS) {

+      return NULL;

+   }

+

+   CachedShaders[i].num_attribs = num_attribs;

+   for (j = 0; j < num_attribs; j++) {

+      CachedShaders[i].semantic_names[j] = semantic_names[j];

+      CachedShaders[i].semantic_indexes[j] = semantic_indexes[j];

+   }

+

+   CachedShaders[i].handle =

+      util_make_vertex_passthrough_shader(pipe,

+                                          num_attribs,

+                                          semantic_names,

+                                          semantic_indexes);

+   NumCachedShaders++;

+

+   return CachedShaders[i].handle;

+}

+

+static void

+st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,

+           GLfloat width, GLfloat height)

+{

+   struct st_context *st = ctx->st;

+   struct pipe_context *pipe = st->pipe;

+   struct cso_context *cso = ctx->st->cso_context;

+   struct pipe_resource *vbuffer;

+   struct pipe_transfer *vbuffer_transfer;

+   GLuint i, numTexCoords, numAttribs;

+   GLboolean emitColor;

+   uint semantic_names[2 + MAX_TEXTURE_UNITS];

+   uint semantic_indexes[2 + MAX_TEXTURE_UNITS];

+   struct pipe_vertex_element velements[2 + MAX_TEXTURE_UNITS];

+   GLbitfield inputs = VERT_BIT_POS;

+

+   st_validate_state(st);

+

+   /* determine if we need vertex color */

+   if (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL0)

+      emitColor = GL_TRUE;

+   else

+      emitColor = GL_FALSE;

+

+   /* determine how many enabled sets of texcoords */

+   numTexCoords = 0;

+   for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {

+      if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) {

+         inputs |= VERT_BIT_TEX(i);

+         numTexCoords++;

+      }

+   }

+

+   /* total number of attributes per vertex */

+   numAttribs = 1 + emitColor + numTexCoords;

+

+

+   /* create the vertex buffer */

+   vbuffer = pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER,

+                                PIPE_USAGE_STREAM,

+                                numAttribs * 4 * 4 * sizeof(GLfloat));

+

+   /* load vertex buffer */

+   {

+#define SET_ATTRIB(VERT, ATTR, X, Y, Z, W)                              \

+      do {                                                              \

+         GLuint k = (((VERT) * numAttribs + (ATTR)) * 4);               \

+         assert(k < 4 * 4 * numAttribs);                                \

+         vbuf[k + 0] = X;                                               \

+         vbuf[k + 1] = Y;                                               \

+         vbuf[k + 2] = Z;                                               \

+         vbuf[k + 3] = W;                                               \

+      } while (0)

+

+      const GLfloat x0 = x, y0 = y, x1 = x + width, y1 = y + height;

+      GLfloat *vbuf = (GLfloat *) pipe_buffer_map(pipe, vbuffer,

+                                                  PIPE_TRANSFER_WRITE,

+                                                  &vbuffer_transfer);

+      GLuint attr;

+      

+      z = CLAMP(z, 0.0f, 1.0f);

+

+      /* positions (in clip coords) */

+      {

+         const struct gl_framebuffer *fb = st->ctx->DrawBuffer;

+         const GLfloat fb_width = (GLfloat)fb->Width;

+         const GLfloat fb_height = (GLfloat)fb->Height;

+

+         const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0);

+         const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);

+         const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0);

+         const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0);

+

+         SET_ATTRIB(0, 0, clip_x0, clip_y0, z, 1.0f);   /* lower left */

+         SET_ATTRIB(1, 0, clip_x1, clip_y0, z, 1.0f);   /* lower right */

+         SET_ATTRIB(2, 0, clip_x1, clip_y1, z, 1.0f);   /* upper right */

+         SET_ATTRIB(3, 0, clip_x0, clip_y1, z, 1.0f);   /* upper left */

+

+         semantic_names[0] = TGSI_SEMANTIC_POSITION;

+         semantic_indexes[0] = 0;

+      }

+

+      /* colors */

+      if (emitColor) {

+         const GLfloat *c = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];

+         SET_ATTRIB(0, 1, c[0], c[1], c[2], c[3]);

+         SET_ATTRIB(1, 1, c[0], c[1], c[2], c[3]);

+         SET_ATTRIB(2, 1, c[0], c[1], c[2], c[3]);

+         SET_ATTRIB(3, 1, c[0], c[1], c[2], c[3]);

+         semantic_names[1] = TGSI_SEMANTIC_COLOR;

+         semantic_indexes[1] = 0;

+         attr = 2;

+      }

+      else {

+         attr = 1;

+      }

+

+      /* texcoords */

+      for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {

+         if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) {

+            struct gl_texture_object *obj = ctx->Texture.Unit[i]._Current;

+            struct gl_texture_image *img = obj->Image[0][obj->BaseLevel];

+            const GLfloat wt = (GLfloat) img->Width;

+            const GLfloat ht = (GLfloat) img->Height;

+            const GLfloat s0 = obj->CropRect[0] / wt;

+            const GLfloat t0 = obj->CropRect[1] / ht;

+            const GLfloat s1 = (obj->CropRect[0] + obj->CropRect[2]) / wt;

+            const GLfloat t1 = (obj->CropRect[1] + obj->CropRect[3]) / ht;

+

+            /*printf("crop texcoords: %g, %g .. %g, %g\n", s0, t0, s1, t1);*/

+            SET_ATTRIB(0, attr, s0, t0, 0.0f, 1.0f);  /* lower left */

+            SET_ATTRIB(1, attr, s1, t0, 0.0f, 1.0f);  /* lower right */

+            SET_ATTRIB(2, attr, s1, t1, 0.0f, 1.0f);  /* upper right */

+            SET_ATTRIB(3, attr, s0, t1, 0.0f, 1.0f);  /* upper left */

+

+            semantic_names[attr] = TGSI_SEMANTIC_GENERIC;

+            semantic_indexes[attr] = 0;

+

+            attr++;

+         }

+      }

+

+      pipe_buffer_unmap(pipe, vbuffer_transfer);

+

+#undef SET_ATTRIB

+   }

+

+

+   cso_save_viewport(cso);

+   cso_save_vertex_shader(cso);

+   cso_save_vertex_elements(cso);

+   cso_save_vertex_buffers(cso);

+

+   {

+      void *vs = lookup_shader(pipe, numAttribs,

+                               semantic_names, semantic_indexes);

+      cso_set_vertex_shader_handle(cso, vs);

+   }

+

+   for (i = 0; i < numAttribs; i++) {

+      velements[i].src_offset = i * 4 * sizeof(float);

+      velements[i].instance_divisor = 0;

+      velements[i].vertex_buffer_index = 0;

+      velements[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;

+   }

+   cso_set_vertex_elements(cso, numAttribs, velements);

+

+   /* viewport state: viewport matching window dims */

+   {

+      const struct gl_framebuffer *fb = st->ctx->DrawBuffer;

+      const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);

+      const GLfloat width = (GLfloat)fb->Width;

+      const GLfloat height = (GLfloat)fb->Height;

+      struct pipe_viewport_state vp;

+      vp.scale[0] =  0.5f * width;

+      vp.scale[1] = height * (invert ? -0.5f : 0.5f);

+      vp.scale[2] = 1.0f;

+      vp.scale[3] = 1.0f;

+      vp.translate[0] = 0.5f * width;

+      vp.translate[1] = 0.5f * height;

+      vp.translate[2] = 0.0f;

+      vp.translate[3] = 0.0f;

+      cso_set_viewport(cso, &vp);

+   }

+

+

+   util_draw_vertex_buffer(pipe, cso, vbuffer,

+                           0,  /* offset */

+                           PIPE_PRIM_TRIANGLE_FAN,

+                           4,  /* verts */

+                           numAttribs); /* attribs/vert */

+

+

+   pipe_resource_reference(&vbuffer, NULL);

+

+   /* restore state */

+   cso_restore_viewport(cso);

+   cso_restore_vertex_shader(cso);

+   cso_restore_vertex_elements(cso);

+   cso_restore_vertex_buffers(cso);

+}

+

+

+void

+st_init_drawtex_functions(struct dd_function_table *functions)

+{

+   functions->DrawTex = st_DrawTex;

+}

+

+

+/**

+ * Free any cached shaders

+ */

+void

+st_destroy_drawtex(struct st_context *st)

+{

+   GLuint i;

+   for (i = 0; i < NumCachedShaders; i++) {

+      cso_delete_vertex_shader(st->cso_context, CachedShaders[i].handle);

+   }

+   NumCachedShaders = 0;

+}

+

+

+#endif /* FEATURE_OES_draw_texture */

diff --git a/mesalib/src/mesa/state_tracker/st_context.c b/mesalib/src/mesa/state_tracker/st_context.c
index 7a19f35bb..8f3a7415d 100644
--- a/mesalib/src/mesa/state_tracker/st_context.c
+++ b/mesalib/src/mesa/state_tracker/st_context.c
@@ -1,297 +1,297 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-#include "main/imports.h"
-#include "main/context.h"
-#include "main/shaderobj.h"
-#include "program/prog_cache.h"
-#include "vbo/vbo.h"
-#include "glapi/glapi.h"
-#include "st_context.h"
-#include "st_debug.h"
-#include "st_cb_accum.h"
-#include "st_cb_bitmap.h"
-#include "st_cb_blit.h"
-#include "st_cb_bufferobjects.h"
-#include "st_cb_clear.h"
-#include "st_cb_condrender.h"
-#include "st_cb_drawpixels.h"
-#include "st_cb_rasterpos.h"
-#include "st_cb_drawtex.h"
-#include "st_cb_eglimage.h"
-#include "st_cb_fbo.h"
-#include "st_cb_feedback.h"
-#include "st_cb_program.h"
-#include "st_cb_queryobj.h"
-#include "st_cb_readpixels.h"
-#include "st_cb_texture.h"
-#include "st_cb_xformfb.h"
-#include "st_cb_flush.h"
-#include "st_cb_strings.h"
-#include "st_cb_viewport.h"
-#include "st_atom.h"
-#include "st_draw.h"
-#include "st_extensions.h"
-#include "st_gen_mipmap.h"
-#include "st_program.h"
-#include "pipe/p_context.h"
-#include "util/u_inlines.h"
-#include "cso_cache/cso_context.h"
-
-
-DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
-
-
-/**
- * Called via ctx->Driver.UpdateState()
- */
-void st_invalidate_state(struct gl_context * ctx, GLuint new_state)
-{
-   struct st_context *st = st_context(ctx);
-
-   st->dirty.mesa |= new_state;
-   st->dirty.st |= ST_NEW_MESA;
-
-   /* This is the only core Mesa module we depend upon.
-    * No longer use swrast, swsetup, tnl.
-    */
-   _vbo_InvalidateState(ctx, new_state);
-}
-
-
-/**
- * Check for multisample env var override.
- */
-int
-st_get_msaa(void)
-{
-   const char *msaa = _mesa_getenv("__GL_FSAA_MODE");
-   if (msaa)
-      return atoi(msaa);
-   return 0;
-}
-
-
-static struct st_context *
-st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe )
-{
-   uint i;
-   struct st_context *st = ST_CALLOC_STRUCT( st_context );
-   
-   ctx->st = st;
-
-   st->ctx = ctx;
-   st->pipe = pipe;
-
-   /* XXX: this is one-off, per-screen init: */
-   st_debug_init();
-   
-   /* state tracker needs the VBO module */
-   _vbo_CreateContext(ctx);
-
-   st->dirty.mesa = ~0;
-   st->dirty.st = ~0;
-
-   st->cso_context = cso_create_context(pipe);
-
-   st_init_atoms( st );
-   st_init_bitmap(st);
-   st_init_clear(st);
-   st_init_draw( st );
-   st_init_generate_mipmap(st);
-   st_init_blit(st);
-
-   if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
-      st->internal_target = PIPE_TEXTURE_2D;
-   else
-      st->internal_target = PIPE_TEXTURE_RECT;
-
-   for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
-      st->state.sampler_list[i] = &st->state.samplers[i];
-
-   for (i = 0; i < 3; i++) {
-      memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
-      st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
-      st->velems_util_draw[i].instance_divisor = 0;
-      st->velems_util_draw[i].vertex_buffer_index = 0;
-      st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
-   }
-
-   /* we want all vertex data to be placed in buffer objects */
-   vbo_use_buffer_objects(ctx);
-
-   /* Need these flags:
-    */
-   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
-
-   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
-
-   st->pixel_xfer.cache = _mesa_new_program_cache();
-
-   st->force_msaa = st_get_msaa();
-
-   /* GL limits and extensions */
-   st_init_limits(st);
-   st_init_extensions(st);
-
-   return st;
-}
-
-
-struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
-                                     const struct gl_config *visual,
-                                     struct st_context *share)
-{
-   struct gl_context *ctx;
-   struct gl_context *shareCtx = share ? share->ctx : NULL;
-   struct dd_function_table funcs;
-
-   /* Sanity checks */
-   assert(MESA_SHADER_VERTEX == PIPE_SHADER_VERTEX);
-   assert(MESA_SHADER_FRAGMENT == PIPE_SHADER_FRAGMENT);
-   assert(MESA_SHADER_GEOMETRY == PIPE_SHADER_GEOMETRY);
-
-   memset(&funcs, 0, sizeof(funcs));
-   st_init_driver_functions(&funcs);
-
-   ctx = _mesa_create_context(api, visual, shareCtx, &funcs, NULL);
-
-   /* XXX: need a capability bit in gallium to query if the pipe
-    * driver prefers DP4 or MUL/MAD for vertex transformation.
-    */
-   if (debug_get_option_mesa_mvp_dp4())
-      _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
-
-   return st_create_context_priv(ctx, pipe);
-}
-
-
-static void st_destroy_context_priv( struct st_context *st )
-{
-   uint i;
-
-   st_destroy_atoms( st );
-   st_destroy_draw( st );
-   st_destroy_generate_mipmap(st);
-   st_destroy_blit(st);
-   st_destroy_clear(st);
-   st_destroy_bitmap(st);
-   st_destroy_drawpix(st);
-   st_destroy_drawtex(st);
-
-   /* Unreference any user vertex buffers. */
-   for (i = 0; i < st->num_user_vbs; i++) {
-      pipe_resource_reference(&st->user_vb[i], NULL);
-   }
-
-   for (i = 0; i < Elements(st->state.sampler_views); i++) {
-      pipe_sampler_view_reference(&st->state.sampler_views[i], NULL);
-   }
-
-   if (st->default_texture) {
-      st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
-      st->default_texture = NULL;
-   }
-
-   free( st );
-}
-
- 
-void st_destroy_context( struct st_context *st )
-{
-   struct pipe_context *pipe = st->pipe;
-   struct cso_context *cso = st->cso_context;
-   struct gl_context *ctx = st->ctx;
-   GLuint i;
-
-   /* need to unbind and destroy CSO objects before anything else */
-   cso_release_all(st->cso_context);
-
-   st_reference_fragprog(st, &st->fp, NULL);
-   st_reference_vertprog(st, &st->vp, NULL);
-
-   /* release framebuffer surfaces */
-   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
-      pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
-   }
-   pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
-
-   pipe->set_index_buffer(pipe, NULL);
-
-   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
-      pipe->set_constant_buffer(pipe, i, 0, NULL);
-   }
-
-   _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
-
-   _vbo_DestroyContext(st->ctx);
-
-   st_destroy_program_variants(st);
-
-   _mesa_free_context_data(ctx);
-
-   st_destroy_context_priv(st);
-
-   cso_destroy_context(cso);
-
-   pipe->destroy( pipe );
-
-   free(ctx);
-}
-
-
-void st_init_driver_functions(struct dd_function_table *functions)
-{
-   _mesa_init_shader_object_functions(functions);
-
-   st_init_accum_functions(functions);
-   st_init_blit_functions(functions);
-   st_init_bufferobject_functions(functions);
-   st_init_clear_functions(functions);
-   st_init_bitmap_functions(functions);
-   st_init_drawpixels_functions(functions);
-   st_init_rasterpos_functions(functions);
-
-   st_init_drawtex_functions(functions);
-
-   st_init_eglimage_functions(functions);
-
-   st_init_fbo_functions(functions);
-   st_init_feedback_functions(functions);
-   st_init_program_functions(functions);
-   st_init_query_functions(functions);
-   st_init_cond_render_functions(functions);
-   st_init_readpixels_functions(functions);
-   st_init_texture_functions(functions);
-   st_init_flush_functions(functions);
-   st_init_string_functions(functions);
-   st_init_viewport_functions(functions);
-
-   st_init_xformfb_functions(functions);
-
-   functions->UpdateState = st_invalidate_state;
-}
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+#include "main/imports.h"

+#include "main/context.h"

+#include "main/shaderobj.h"

+#include "program/prog_cache.h"

+#include "vbo/vbo.h"

+#include "glapi/glapi.h"

+#include "st_context.h"

+#include "st_debug.h"

+#include "st_cb_accum.h"

+#include "st_cb_bitmap.h"

+#include "st_cb_blit.h"

+#include "st_cb_bufferobjects.h"

+#include "st_cb_clear.h"

+#include "st_cb_condrender.h"

+#include "st_cb_drawpixels.h"

+#include "st_cb_rasterpos.h"

+#include "st_cb_drawtex.h"

+#include "st_cb_eglimage.h"

+#include "st_cb_fbo.h"

+#include "st_cb_feedback.h"

+#include "st_cb_program.h"

+#include "st_cb_queryobj.h"

+#include "st_cb_readpixels.h"

+#include "st_cb_texture.h"

+#include "st_cb_xformfb.h"

+#include "st_cb_flush.h"

+#include "st_cb_strings.h"

+#include "st_cb_viewport.h"

+#include "st_atom.h"

+#include "st_draw.h"

+#include "st_extensions.h"

+#include "st_gen_mipmap.h"

+#include "st_program.h"

+#include "pipe/p_context.h"

+#include "util/u_inlines.h"

+#include "cso_cache/cso_context.h"

+

+

+DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)

+

+

+/**

+ * Called via ctx->Driver.UpdateState()

+ */

+void st_invalidate_state(struct gl_context * ctx, GLuint new_state)

+{

+   struct st_context *st = st_context(ctx);

+

+   st->dirty.mesa |= new_state;

+   st->dirty.st |= ST_NEW_MESA;

+

+   /* This is the only core Mesa module we depend upon.

+    * No longer use swrast, swsetup, tnl.

+    */

+   _vbo_InvalidateState(ctx, new_state);

+}

+

+

+/**

+ * Check for multisample env var override.

+ */

+int

+st_get_msaa(void)

+{

+   const char *msaa = _mesa_getenv("__GL_FSAA_MODE");

+   if (msaa)

+      return atoi(msaa);

+   return 0;

+}

+

+

+static struct st_context *

+st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe )

+{

+   uint i;

+   struct st_context *st = ST_CALLOC_STRUCT( st_context );

+   

+   ctx->st = st;

+

+   st->ctx = ctx;

+   st->pipe = pipe;

+

+   /* XXX: this is one-off, per-screen init: */

+   st_debug_init();

+   

+   /* state tracker needs the VBO module */

+   _vbo_CreateContext(ctx);

+

+   st->dirty.mesa = ~0;

+   st->dirty.st = ~0;

+

+   st->cso_context = cso_create_context(pipe);

+

+   st_init_atoms( st );

+   st_init_bitmap(st);

+   st_init_clear(st);

+   st_init_draw( st );

+   st_init_generate_mipmap(st);

+   st_init_blit(st);

+

+   if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))

+      st->internal_target = PIPE_TEXTURE_2D;

+   else

+      st->internal_target = PIPE_TEXTURE_RECT;

+

+   for (i = 0; i < PIPE_MAX_SAMPLERS; i++)

+      st->state.sampler_list[i] = &st->state.samplers[i];

+

+   for (i = 0; i < 3; i++) {

+      memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));

+      st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);

+      st->velems_util_draw[i].instance_divisor = 0;

+      st->velems_util_draw[i].vertex_buffer_index = 0;

+      st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;

+   }

+

+   /* we want all vertex data to be placed in buffer objects */

+   vbo_use_buffer_objects(ctx);

+

+   /* Need these flags:

+    */

+   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;

+

+   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;

+

+   st->pixel_xfer.cache = _mesa_new_program_cache();

+

+   st->force_msaa = st_get_msaa();

+

+   /* GL limits and extensions */

+   st_init_limits(st);

+   st_init_extensions(st);

+

+   return st;

+}

+

+

+struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,

+                                     const struct gl_config *visual,

+                                     struct st_context *share)

+{

+   struct gl_context *ctx;

+   struct gl_context *shareCtx = share ? share->ctx : NULL;

+   struct dd_function_table funcs;

+

+   /* Sanity checks */

+   assert(MESA_SHADER_VERTEX == PIPE_SHADER_VERTEX);

+   assert(MESA_SHADER_FRAGMENT == PIPE_SHADER_FRAGMENT);

+   assert(MESA_SHADER_GEOMETRY == PIPE_SHADER_GEOMETRY);

+

+   memset(&funcs, 0, sizeof(funcs));

+   st_init_driver_functions(&funcs);

+

+   ctx = _mesa_create_context(api, visual, shareCtx, &funcs, NULL);

+

+   /* XXX: need a capability bit in gallium to query if the pipe

+    * driver prefers DP4 or MUL/MAD for vertex transformation.

+    */

+   if (debug_get_option_mesa_mvp_dp4())

+      _mesa_set_mvp_with_dp4( ctx, GL_TRUE );

+

+   return st_create_context_priv(ctx, pipe);

+}

+

+

+static void st_destroy_context_priv( struct st_context *st )

+{

+   uint i;

+

+   st_destroy_atoms( st );

+   st_destroy_draw( st );

+   st_destroy_generate_mipmap(st);

+   st_destroy_blit(st);

+   st_destroy_clear(st);

+   st_destroy_bitmap(st);

+   st_destroy_drawpix(st);

+   st_destroy_drawtex(st);

+

+   /* Unreference any user vertex buffers. */

+   for (i = 0; i < st->num_user_vbs; i++) {

+      pipe_resource_reference(&st->user_vb[i], NULL);

+   }

+

+   for (i = 0; i < Elements(st->state.sampler_views); i++) {

+      pipe_sampler_view_reference(&st->state.sampler_views[i], NULL);

+   }

+

+   if (st->default_texture) {

+      st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);

+      st->default_texture = NULL;

+   }

+

+   free( st );

+}

+

+ 

+void st_destroy_context( struct st_context *st )

+{

+   struct pipe_context *pipe = st->pipe;

+   struct cso_context *cso = st->cso_context;

+   struct gl_context *ctx = st->ctx;

+   GLuint i;

+

+   /* need to unbind and destroy CSO objects before anything else */

+   cso_release_all(st->cso_context);

+

+   st_reference_fragprog(st, &st->fp, NULL);

+   st_reference_vertprog(st, &st->vp, NULL);

+

+   /* release framebuffer surfaces */

+   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {

+      pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);

+   }

+   pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);

+

+   pipe->set_index_buffer(pipe, NULL);

+

+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {

+      pipe->set_constant_buffer(pipe, i, 0, NULL);

+   }

+

+   _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);

+

+   _vbo_DestroyContext(st->ctx);

+

+   st_destroy_program_variants(st);

+

+   _mesa_free_context_data(ctx);

+

+   st_destroy_context_priv(st);

+

+   cso_destroy_context(cso);

+

+   pipe->destroy( pipe );

+

+   free(ctx);

+}

+

+

+void st_init_driver_functions(struct dd_function_table *functions)

+{

+   _mesa_init_shader_object_functions(functions);

+

+   st_init_accum_functions(functions);

+   st_init_blit_functions(functions);

+   st_init_bufferobject_functions(functions);

+   st_init_clear_functions(functions);

+   st_init_bitmap_functions(functions);

+   st_init_drawpixels_functions(functions);

+   st_init_rasterpos_functions(functions);

+

+   st_init_drawtex_functions(functions);

+

+   st_init_eglimage_functions(functions);

+

+   st_init_fbo_functions(functions);

+   st_init_feedback_functions(functions);

+   st_init_program_functions(functions);

+   st_init_query_functions(functions);

+   st_init_cond_render_functions(functions);

+   st_init_readpixels_functions(functions);

+   st_init_texture_functions(functions);

+   st_init_flush_functions(functions);

+   st_init_string_functions(functions);

+   st_init_viewport_functions(functions);

+

+   st_init_xformfb_functions(functions);

+

+   functions->UpdateState = st_invalidate_state;

+}

diff --git a/mesalib/src/mesa/state_tracker/st_context.h b/mesalib/src/mesa/state_tracker/st_context.h
index 77765f023..ef54fd7cd 100644
--- a/mesalib/src/mesa/state_tracker/st_context.h
+++ b/mesalib/src/mesa/state_tracker/st_context.h
@@ -1,270 +1,270 @@
-/**************************************************************************
- * 
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-#ifndef ST_CONTEXT_H
-#define ST_CONTEXT_H
-
-#include "main/mtypes.h"
-#include "pipe/p_state.h"
-#include "state_tracker/st_api.h"
-
-struct bitmap_cache;
-struct blit_state;
-struct dd_function_table;
-struct draw_context;
-struct draw_stage;
-struct gen_mipmap_state;
-struct st_context;
-struct st_fragment_program;
-
-
-#define ST_NEW_MESA                    0x1 /* Mesa state has changed */
-#define ST_NEW_FRAGMENT_PROGRAM        0x2
-#define ST_NEW_VERTEX_PROGRAM          0x4
-#define ST_NEW_FRAMEBUFFER             0x8
-#define ST_NEW_EDGEFLAGS_DATA          0x10
-#define ST_NEW_GEOMETRY_PROGRAM        0x20
-
-
-struct st_state_flags {
-   GLuint mesa;
-   GLuint st;
-};
-
-struct st_tracked_state {
-   const char *name;
-   struct st_state_flags dirty;
-   void (*update)( struct st_context *st );
-};
-
-
-
-struct st_context
-{
-   struct st_context_iface iface;
-
-   struct gl_context *ctx;
-
-   struct pipe_context *pipe;
-
-   struct draw_context *draw;  /**< For selection/feedback/rastpos only */
-   struct draw_stage *feedback_stage;  /**< For GL_FEEDBACK rendermode */
-   struct draw_stage *selection_stage;  /**< For GL_SELECT rendermode */
-   struct draw_stage *rastpos_stage;  /**< For glRasterPos */
-
-
-   /* On old libGL's for linux we need to invalidate the drawables
-    * on glViewpport calls, this is set via a option.
-    */
-   boolean invalidate_on_gl_viewport;
-
-   /* Some state is contained in constant objects.
-    * Other state is just parameter values.
-    */
-   struct {
-      struct pipe_blend_state               blend;
-      struct pipe_depth_stencil_alpha_state depth_stencil;
-      struct pipe_rasterizer_state          rasterizer;
-      struct pipe_sampler_state             samplers[PIPE_MAX_SAMPLERS];
-      struct pipe_sampler_state             *sampler_list[PIPE_MAX_SAMPLERS];
-      struct pipe_clip_state clip;
-      struct {
-         void *ptr;
-         unsigned size;
-      } constants[PIPE_SHADER_TYPES];
-      struct pipe_framebuffer_state framebuffer;
-      struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];
-      struct pipe_scissor_state scissor;
-      struct pipe_viewport_state viewport;
-      unsigned sample_mask;
-
-      GLuint num_samplers;
-      GLuint num_textures;
-
-      GLuint poly_stipple[32];  /**< In OpenGL's bottom-to-top order */
-   } state;
-
-   char vendor[100];
-   char renderer[100];
-
-   struct st_state_flags dirty;
-
-   GLboolean missing_textures;
-   GLboolean vertdata_edgeflags;
-
-   /** Mapping from VERT_RESULT_x to post-transformed vertex slot */
-   const GLuint *vertex_result_to_slot;
-
-   struct st_vertex_program *vp;    /**< Currently bound vertex program */
-   struct st_fragment_program *fp;  /**< Currently bound fragment program */
-   struct st_geometry_program *gp;  /**< Currently bound geometry program */
-
-   struct st_vp_variant *vp_variant;
-   struct st_fp_variant *fp_variant;
-   struct st_gp_variant *gp_variant;
-
-   struct gl_texture_object *default_texture;
-
-   struct {
-      struct gl_program_cache *cache;
-      struct st_fragment_program *program;  /**< cur pixel transfer prog */
-      GLuint xfer_prog_sn;  /**< pixel xfer program serial no. */
-      GLuint user_prog_sn;  /**< user fragment program serial no. */
-      struct st_fragment_program *combined_prog;
-      GLuint combined_prog_sn;
-      struct pipe_resource *pixelmap_texture;
-      struct pipe_sampler_view *pixelmap_sampler_view;
-      boolean pixelmap_enabled;  /**< use the pixelmap texture? */
-   } pixel_xfer;
-
-   /** for glBitmap */
-   struct {
-      struct pipe_rasterizer_state rasterizer;
-      struct pipe_sampler_state samplers[2];
-      enum pipe_format tex_format;
-      void *vs;
-      float vertices[4][3][4];  /**< vertex pos + color + texcoord */
-      struct pipe_resource *vbuf;
-      unsigned vbuf_slot;       /* next free slot in vbuf */
-      struct bitmap_cache *cache;
-   } bitmap;
-
-   /** for glDraw/CopyPixels */
-   struct {
-      struct gl_fragment_program *shaders[4];
-      void *vert_shaders[2];   /**< ureg shaders */
-   } drawpix;
-
-   /** for glClear */
-   struct {
-      struct pipe_rasterizer_state raster;
-      struct pipe_viewport_state viewport;
-      struct pipe_clip_state clip;
-      void *vs;
-      void *fs;
-      float vertices[4][2][4];  /**< vertex pos + color */
-      struct pipe_resource *vbuf;
-      unsigned vbuf_slot;
-      boolean enable_ds_separate;
-   } clear;
-
-   /** used for anything using util_draw_vertex_buffer */
-   struct pipe_vertex_element velems_util_draw[3];
-
-   void *passthrough_fs;  /**< simple pass-through frag shader */
-
-   enum pipe_texture_target internal_target;
-   struct gen_mipmap_state *gen_mipmap;
-   struct blit_state *blit;
-
-   struct cso_context *cso_context;
-
-   int force_msaa;
-   void *winsys_drawable_handle;
-
-   /* User vertex buffers. */
-   struct pipe_resource *user_vb[PIPE_MAX_ATTRIBS];
-   unsigned user_vb_stride[PIPE_MAX_ATTRIBS];
-   unsigned num_user_vbs;
-};
-
-
-/* Need this so that we can implement Mesa callbacks in this module.
- */
-static INLINE struct st_context *st_context(struct gl_context *ctx)
-{
-   return ctx->st;
-}
-
-
-/**
- * Wrapper for struct gl_framebuffer.
- * This is an opaque type to the outside world.
- */
-struct st_framebuffer
-{
-   struct gl_framebuffer Base;
-   void *Private;
-
-   struct st_framebuffer_iface *iface;
-   enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
-   unsigned num_statts;
-   int32_t revalidate;
-};
-
-
-extern void st_init_driver_functions(struct dd_function_table *functions);
-
-void st_invalidate_state(struct gl_context * ctx, GLuint new_state);
-
-
-
-#define Y_0_TOP 1
-#define Y_0_BOTTOM 2
-
-static INLINE GLuint
-st_fb_orientation(const struct gl_framebuffer *fb)
-{
-   if (fb && fb->Name == 0) {
-      /* Drawing into a window (on-screen buffer).
-       *
-       * Negate Y scale to flip image vertically.
-       * The NDC Y coords prior to viewport transformation are in the range
-       * [y=-1=bottom, y=1=top]
-       * Hardware window coords are in the range [y=0=top, y=H-1=bottom] where
-       * H is the window height.
-       * Use the viewport transformation to invert Y.
-       */
-      return Y_0_TOP;
-   }
-   else {
-      /* Drawing into user-created FBO (very likely a texture).
-       *
-       * For textures, T=0=Bottom, so by extension Y=0=Bottom for rendering.
-       */
-      return Y_0_BOTTOM;
-   }
-}
-
-
-/** clear-alloc a struct-sized object, with casting */
-#define ST_CALLOC_STRUCT(T)   (struct T *) calloc(1, sizeof(struct T))
-
-
-extern int
-st_get_msaa(void);
-
-extern struct st_context *
-st_create_context(gl_api api, struct pipe_context *pipe,
-                  const struct gl_config *visual,
-                  struct st_context *share);
-
-extern void
-st_destroy_context(struct st_context *st);
-
-
-#endif
+/**************************************************************************

+ * 

+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+#ifndef ST_CONTEXT_H

+#define ST_CONTEXT_H

+

+#include "main/mtypes.h"

+#include "pipe/p_state.h"

+#include "state_tracker/st_api.h"

+

+struct bitmap_cache;

+struct blit_state;

+struct dd_function_table;

+struct draw_context;

+struct draw_stage;

+struct gen_mipmap_state;

+struct st_context;

+struct st_fragment_program;

+

+

+#define ST_NEW_MESA                    0x1 /* Mesa state has changed */

+#define ST_NEW_FRAGMENT_PROGRAM        0x2

+#define ST_NEW_VERTEX_PROGRAM          0x4

+#define ST_NEW_FRAMEBUFFER             0x8

+#define ST_NEW_EDGEFLAGS_DATA          0x10

+#define ST_NEW_GEOMETRY_PROGRAM        0x20

+

+

+struct st_state_flags {

+   GLuint mesa;

+   GLuint st;

+};

+

+struct st_tracked_state {

+   const char *name;

+   struct st_state_flags dirty;

+   void (*update)( struct st_context *st );

+};

+

+

+

+struct st_context

+{

+   struct st_context_iface iface;

+

+   struct gl_context *ctx;

+

+   struct pipe_context *pipe;

+

+   struct draw_context *draw;  /**< For selection/feedback/rastpos only */

+   struct draw_stage *feedback_stage;  /**< For GL_FEEDBACK rendermode */

+   struct draw_stage *selection_stage;  /**< For GL_SELECT rendermode */

+   struct draw_stage *rastpos_stage;  /**< For glRasterPos */

+

+

+   /* On old libGL's for linux we need to invalidate the drawables

+    * on glViewpport calls, this is set via a option.

+    */

+   boolean invalidate_on_gl_viewport;

+

+   /* Some state is contained in constant objects.

+    * Other state is just parameter values.

+    */

+   struct {

+      struct pipe_blend_state               blend;

+      struct pipe_depth_stencil_alpha_state depth_stencil;

+      struct pipe_rasterizer_state          rasterizer;

+      struct pipe_sampler_state             samplers[PIPE_MAX_SAMPLERS];

+      struct pipe_sampler_state             *sampler_list[PIPE_MAX_SAMPLERS];

+      struct pipe_clip_state clip;

+      struct {

+         void *ptr;

+         unsigned size;

+      } constants[PIPE_SHADER_TYPES];

+      struct pipe_framebuffer_state framebuffer;

+      struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];

+      struct pipe_scissor_state scissor;

+      struct pipe_viewport_state viewport;

+      unsigned sample_mask;

+

+      GLuint num_samplers;

+      GLuint num_textures;

+

+      GLuint poly_stipple[32];  /**< In OpenGL's bottom-to-top order */

+   } state;

+

+   char vendor[100];

+   char renderer[100];

+

+   struct st_state_flags dirty;

+

+   GLboolean missing_textures;

+   GLboolean vertdata_edgeflags;

+

+   /** Mapping from VERT_RESULT_x to post-transformed vertex slot */

+   const GLuint *vertex_result_to_slot;

+

+   struct st_vertex_program *vp;    /**< Currently bound vertex program */

+   struct st_fragment_program *fp;  /**< Currently bound fragment program */

+   struct st_geometry_program *gp;  /**< Currently bound geometry program */

+

+   struct st_vp_variant *vp_variant;

+   struct st_fp_variant *fp_variant;

+   struct st_gp_variant *gp_variant;

+

+   struct gl_texture_object *default_texture;

+

+   struct {

+      struct gl_program_cache *cache;

+      struct st_fragment_program *program;  /**< cur pixel transfer prog */

+      GLuint xfer_prog_sn;  /**< pixel xfer program serial no. */

+      GLuint user_prog_sn;  /**< user fragment program serial no. */

+      struct st_fragment_program *combined_prog;

+      GLuint combined_prog_sn;

+      struct pipe_resource *pixelmap_texture;

+      struct pipe_sampler_view *pixelmap_sampler_view;

+      boolean pixelmap_enabled;  /**< use the pixelmap texture? */

+   } pixel_xfer;

+

+   /** for glBitmap */

+   struct {

+      struct pipe_rasterizer_state rasterizer;

+      struct pipe_sampler_state samplers[2];

+      enum pipe_format tex_format;

+      void *vs;

+      float vertices[4][3][4];  /**< vertex pos + color + texcoord */

+      struct pipe_resource *vbuf;

+      unsigned vbuf_slot;       /* next free slot in vbuf */

+      struct bitmap_cache *cache;

+   } bitmap;

+

+   /** for glDraw/CopyPixels */

+   struct {

+      struct gl_fragment_program *shaders[4];

+      void *vert_shaders[2];   /**< ureg shaders */

+   } drawpix;

+

+   /** for glClear */

+   struct {

+      struct pipe_rasterizer_state raster;

+      struct pipe_viewport_state viewport;

+      struct pipe_clip_state clip;

+      void *vs;

+      void *fs;

+      float vertices[4][2][4];  /**< vertex pos + color */

+      struct pipe_resource *vbuf;

+      unsigned vbuf_slot;

+      boolean enable_ds_separate;

+   } clear;

+

+   /** used for anything using util_draw_vertex_buffer */

+   struct pipe_vertex_element velems_util_draw[3];

+

+   void *passthrough_fs;  /**< simple pass-through frag shader */

+

+   enum pipe_texture_target internal_target;

+   struct gen_mipmap_state *gen_mipmap;

+   struct blit_state *blit;

+

+   struct cso_context *cso_context;

+

+   int force_msaa;

+   void *winsys_drawable_handle;

+

+   /* User vertex buffers. */

+   struct pipe_resource *user_vb[PIPE_MAX_ATTRIBS];

+   unsigned user_vb_stride[PIPE_MAX_ATTRIBS];

+   unsigned num_user_vbs;

+};

+

+

+/* Need this so that we can implement Mesa callbacks in this module.

+ */

+static INLINE struct st_context *st_context(struct gl_context *ctx)

+{

+   return ctx->st;

+}

+

+

+/**

+ * Wrapper for struct gl_framebuffer.

+ * This is an opaque type to the outside world.

+ */

+struct st_framebuffer

+{

+   struct gl_framebuffer Base;

+   void *Private;

+

+   struct st_framebuffer_iface *iface;

+   enum st_attachment_type statts[ST_ATTACHMENT_COUNT];

+   unsigned num_statts;

+   int32_t revalidate;

+};

+

+

+extern void st_init_driver_functions(struct dd_function_table *functions);

+

+void st_invalidate_state(struct gl_context * ctx, GLuint new_state);

+

+

+

+#define Y_0_TOP 1

+#define Y_0_BOTTOM 2

+

+static INLINE GLuint

+st_fb_orientation(const struct gl_framebuffer *fb)

+{

+   if (fb && fb->Name == 0) {

+      /* Drawing into a window (on-screen buffer).

+       *

+       * Negate Y scale to flip image vertically.

+       * The NDC Y coords prior to viewport transformation are in the range

+       * [y=-1=bottom, y=1=top]

+       * Hardware window coords are in the range [y=0=top, y=H-1=bottom] where

+       * H is the window height.

+       * Use the viewport transformation to invert Y.

+       */

+      return Y_0_TOP;

+   }

+   else {

+      /* Drawing into user-created FBO (very likely a texture).

+       *

+       * For textures, T=0=Bottom, so by extension Y=0=Bottom for rendering.

+       */

+      return Y_0_BOTTOM;

+   }

+}

+

+

+/** clear-alloc a struct-sized object, with casting */

+#define ST_CALLOC_STRUCT(T)   (struct T *) calloc(1, sizeof(struct T))

+

+

+extern int

+st_get_msaa(void);

+

+extern struct st_context *

+st_create_context(gl_api api, struct pipe_context *pipe,

+                  const struct gl_config *visual,

+                  struct st_context *share);

+

+extern void

+st_destroy_context(struct st_context *st);

+

+

+#endif

diff --git a/mesalib/src/mesa/state_tracker/st_draw.c b/mesalib/src/mesa/state_tracker/st_draw.c
index 830e3e3c1..a31cbdc9e 100644
--- a/mesalib/src/mesa/state_tracker/st_draw.c
+++ b/mesalib/src/mesa/state_tracker/st_draw.c
@@ -1,749 +1,749 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-/*
- * This file implements the st_draw_vbo() function which is called from
- * Mesa's VBO module.  All point/line/triangle rendering is done through
- * this function whether the user called glBegin/End, glDrawArrays,
- * glDrawElements, glEvalMesh, or glCalList, etc.
- *
- * We basically convert the VBO's vertex attribute/array information into
- * Gallium vertex state, bind the vertex buffer objects and call
- * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays().
- *
- * Authors:
- *   Keith Whitwell <keith@tungstengraphics.com>
- */
-
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "program/prog_uniform.h"
-
-#include "vbo/vbo.h"
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_bufferobjects.h"
-#include "st_draw.h"
-#include "st_program.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_prim.h"
-#include "util/u_draw_quad.h"
-#include "draw/draw_context.h"
-#include "cso_cache/cso_context.h"
-
-
-static GLuint double_types[4] = {
-   PIPE_FORMAT_R64_FLOAT,
-   PIPE_FORMAT_R64G64_FLOAT,
-   PIPE_FORMAT_R64G64B64_FLOAT,
-   PIPE_FORMAT_R64G64B64A64_FLOAT
-};
-
-static GLuint float_types[4] = {
-   PIPE_FORMAT_R32_FLOAT,
-   PIPE_FORMAT_R32G32_FLOAT,
-   PIPE_FORMAT_R32G32B32_FLOAT,
-   PIPE_FORMAT_R32G32B32A32_FLOAT
-};
-
-static GLuint half_float_types[4] = {
-   PIPE_FORMAT_R16_FLOAT,
-   PIPE_FORMAT_R16G16_FLOAT,
-   PIPE_FORMAT_R16G16B16_FLOAT,
-   PIPE_FORMAT_R16G16B16A16_FLOAT
-};
-
-static GLuint uint_types_norm[4] = {
-   PIPE_FORMAT_R32_UNORM,
-   PIPE_FORMAT_R32G32_UNORM,
-   PIPE_FORMAT_R32G32B32_UNORM,
-   PIPE_FORMAT_R32G32B32A32_UNORM
-};
-
-static GLuint uint_types_scale[4] = {
-   PIPE_FORMAT_R32_USCALED,
-   PIPE_FORMAT_R32G32_USCALED,
-   PIPE_FORMAT_R32G32B32_USCALED,
-   PIPE_FORMAT_R32G32B32A32_USCALED
-};
-
-static GLuint int_types_norm[4] = {
-   PIPE_FORMAT_R32_SNORM,
-   PIPE_FORMAT_R32G32_SNORM,
-   PIPE_FORMAT_R32G32B32_SNORM,
-   PIPE_FORMAT_R32G32B32A32_SNORM
-};
-
-static GLuint int_types_scale[4] = {
-   PIPE_FORMAT_R32_SSCALED,
-   PIPE_FORMAT_R32G32_SSCALED,
-   PIPE_FORMAT_R32G32B32_SSCALED,
-   PIPE_FORMAT_R32G32B32A32_SSCALED
-};
-
-static GLuint ushort_types_norm[4] = {
-   PIPE_FORMAT_R16_UNORM,
-   PIPE_FORMAT_R16G16_UNORM,
-   PIPE_FORMAT_R16G16B16_UNORM,
-   PIPE_FORMAT_R16G16B16A16_UNORM
-};
-
-static GLuint ushort_types_scale[4] = {
-   PIPE_FORMAT_R16_USCALED,
-   PIPE_FORMAT_R16G16_USCALED,
-   PIPE_FORMAT_R16G16B16_USCALED,
-   PIPE_FORMAT_R16G16B16A16_USCALED
-};
-
-static GLuint short_types_norm[4] = {
-   PIPE_FORMAT_R16_SNORM,
-   PIPE_FORMAT_R16G16_SNORM,
-   PIPE_FORMAT_R16G16B16_SNORM,
-   PIPE_FORMAT_R16G16B16A16_SNORM
-};
-
-static GLuint short_types_scale[4] = {
-   PIPE_FORMAT_R16_SSCALED,
-   PIPE_FORMAT_R16G16_SSCALED,
-   PIPE_FORMAT_R16G16B16_SSCALED,
-   PIPE_FORMAT_R16G16B16A16_SSCALED
-};
-
-static GLuint ubyte_types_norm[4] = {
-   PIPE_FORMAT_R8_UNORM,
-   PIPE_FORMAT_R8G8_UNORM,
-   PIPE_FORMAT_R8G8B8_UNORM,
-   PIPE_FORMAT_R8G8B8A8_UNORM
-};
-
-static GLuint ubyte_types_scale[4] = {
-   PIPE_FORMAT_R8_USCALED,
-   PIPE_FORMAT_R8G8_USCALED,
-   PIPE_FORMAT_R8G8B8_USCALED,
-   PIPE_FORMAT_R8G8B8A8_USCALED
-};
-
-static GLuint byte_types_norm[4] = {
-   PIPE_FORMAT_R8_SNORM,
-   PIPE_FORMAT_R8G8_SNORM,
-   PIPE_FORMAT_R8G8B8_SNORM,
-   PIPE_FORMAT_R8G8B8A8_SNORM
-};
-
-static GLuint byte_types_scale[4] = {
-   PIPE_FORMAT_R8_SSCALED,
-   PIPE_FORMAT_R8G8_SSCALED,
-   PIPE_FORMAT_R8G8B8_SSCALED,
-   PIPE_FORMAT_R8G8B8A8_SSCALED
-};
-
-static GLuint fixed_types[4] = {
-   PIPE_FORMAT_R32_FIXED,
-   PIPE_FORMAT_R32G32_FIXED,
-   PIPE_FORMAT_R32G32B32_FIXED,
-   PIPE_FORMAT_R32G32B32A32_FIXED
-};
-
-
-
-/**
- * Return a PIPE_FORMAT_x for the given GL datatype and size.
- */
-GLuint
-st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
-                      GLboolean normalized)
-{
-   assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
-          type == GL_FIXED || type == GL_HALF_FLOAT);
-   assert(size >= 1);
-   assert(size <= 4);
-   assert(format == GL_RGBA || format == GL_BGRA);
-
-   if (format == GL_BGRA) {
-      /* this is an odd-ball case */
-      assert(type == GL_UNSIGNED_BYTE);
-      assert(normalized);
-      return PIPE_FORMAT_B8G8R8A8_UNORM;
-   }
-
-   if (normalized) {
-      switch (type) {
-      case GL_DOUBLE: return double_types[size-1];
-      case GL_FLOAT: return float_types[size-1];
-      case GL_HALF_FLOAT: return half_float_types[size-1];
-      case GL_INT: return int_types_norm[size-1];
-      case GL_SHORT: return short_types_norm[size-1];
-      case GL_BYTE: return byte_types_norm[size-1];
-      case GL_UNSIGNED_INT: return uint_types_norm[size-1];
-      case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
-      case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
-      case GL_FIXED: return fixed_types[size-1];
-      default: assert(0); return 0;
-      }      
-   }
-   else {
-      switch (type) {
-      case GL_DOUBLE: return double_types[size-1];
-      case GL_FLOAT: return float_types[size-1];
-      case GL_HALF_FLOAT: return half_float_types[size-1];
-      case GL_INT: return int_types_scale[size-1];
-      case GL_SHORT: return short_types_scale[size-1];
-      case GL_BYTE: return byte_types_scale[size-1];
-      case GL_UNSIGNED_INT: return uint_types_scale[size-1];
-      case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
-      case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
-      case GL_FIXED: return fixed_types[size-1];
-      default: assert(0); return 0;
-      }      
-   }
-   return 0; /* silence compiler warning */
-}
-
-
-
-
-
-/**
- * Examine the active arrays to determine if we have interleaved
- * vertex arrays all living in one VBO, or all living in user space.
- * \param userSpace  returns whether the arrays are in user space.
- */
-static GLboolean
-is_interleaved_arrays(const struct st_vertex_program *vp,
-                      const struct st_vp_variant *vpv,
-                      const struct gl_client_array **arrays)
-{
-   GLuint attr;
-   const struct gl_buffer_object *firstBufObj = NULL;
-   GLint firstStride = -1;
-   const GLubyte *client_addr = NULL;
-
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      const struct gl_buffer_object *bufObj = arrays[mesaAttr]->BufferObj;
-      const GLsizei stride = arrays[mesaAttr]->StrideB; /* in bytes */
-
-      if (firstStride < 0) {
-         firstStride = stride;
-      }
-      else if (firstStride != stride) {
-         return GL_FALSE;
-      }
-
-      if (!bufObj || !bufObj->Name) {
-         /* Try to detect if the client-space arrays are
-          * "close" to each other.
-          */
-         if (!client_addr) {
-            client_addr = arrays[mesaAttr]->Ptr;
-         }
-         else if (abs(arrays[mesaAttr]->Ptr - client_addr) > firstStride) {
-            /* arrays start too far apart */
-            return GL_FALSE;
-         }
-      }
-      else if (!firstBufObj) {
-         firstBufObj = bufObj;
-      }
-      else if (bufObj != firstBufObj) {
-         return GL_FALSE;
-      }
-   }
-
-   return GL_TRUE;
-}
-
-
-/**
- * Set up for drawing interleaved arrays that all live in one VBO
- * or all live in user space.
- * \param vbuffer  returns vertex buffer info
- * \param velements  returns vertex element info
- */
-static void
-setup_interleaved_attribs(struct gl_context *ctx,
-                          const struct st_vertex_program *vp,
-                          const struct st_vp_variant *vpv,
-                          const struct gl_client_array **arrays,
-                          struct pipe_vertex_buffer *vbuffer,
-                          struct pipe_vertex_element velements[],
-                          unsigned max_index)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   GLuint attr;
-   const GLubyte *low_addr = NULL;
-
-   /* Find the lowest address. */
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
-
-      low_addr = !low_addr ? start : MIN2(low_addr, start);
-   }
-
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
-      struct st_buffer_object *stobj = st_buffer_object(bufobj);
-      GLsizei stride = arrays[mesaAttr]->StrideB;
-
-      if (attr == 0) {
-         if (bufobj && bufobj->Name) {
-            vbuffer->buffer = NULL;
-            pipe_resource_reference(&vbuffer->buffer, stobj->buffer);
-            vbuffer->buffer_offset = pointer_to_offset(low_addr);
-         } else {
-            vbuffer->buffer =
-               pipe_user_buffer_create(pipe->screen, (void*)low_addr,
-                                       stride * (max_index + 1),
-				       PIPE_BIND_VERTEX_BUFFER);
-            vbuffer->buffer_offset = 0;
-
-            /* Track user vertex buffers. */
-            pipe_resource_reference(&st->user_vb[0], vbuffer->buffer);
-            st->user_vb_stride[0] = stride;
-            st->num_user_vbs = 1;
-         }
-         vbuffer->stride = stride; /* in bytes */
-      }
-
-      velements[attr].src_offset =
-         (unsigned) (arrays[mesaAttr]->Ptr - low_addr);
-      velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
-      velements[attr].vertex_buffer_index = 0;
-      velements[attr].src_format =
-         st_pipe_vertex_format(arrays[mesaAttr]->Type,
-                               arrays[mesaAttr]->Size,
-                               arrays[mesaAttr]->Format,
-                               arrays[mesaAttr]->Normalized);
-      assert(velements[attr].src_format);
-   }
-}
-
-
-/**
- * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
- * vertex attribute.
- * \param vbuffer  returns vertex buffer info
- * \param velements  returns vertex element info
- */
-static void
-setup_non_interleaved_attribs(struct gl_context *ctx,
-                              const struct st_vertex_program *vp,
-                              const struct st_vp_variant *vpv,
-                              const struct gl_client_array **arrays,
-                              struct pipe_vertex_buffer vbuffer[],
-                              struct pipe_vertex_element velements[],
-                              unsigned max_index)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   GLuint attr;
-
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
-      GLsizei stride = arrays[mesaAttr]->StrideB;
-
-      if (bufobj && bufobj->Name) {
-         /* Attribute data is in a VBO.
-          * Recall that for VBOs, the gl_client_array->Ptr field is
-          * really an offset from the start of the VBO, not a pointer.
-          */
-         struct st_buffer_object *stobj = st_buffer_object(bufobj);
-         assert(stobj->buffer);
-
-         vbuffer[attr].buffer = NULL;
-         pipe_resource_reference(&vbuffer[attr].buffer, stobj->buffer);
-         vbuffer[attr].buffer_offset = pointer_to_offset(arrays[mesaAttr]->Ptr);
-      }
-      else {
-         /* wrap user data */
-         if (arrays[mesaAttr]->Ptr) {
-            vbuffer[attr].buffer = 
-	       pipe_user_buffer_create(pipe->screen,
-				       (void *) arrays[mesaAttr]->Ptr,
-				       stride * (max_index + 1),
-				       PIPE_BIND_VERTEX_BUFFER);
-         }
-         else {
-            /* no array, use ctx->Current.Attrib[] value */
-            uint bytes = sizeof(ctx->Current.Attrib[0]);
-            vbuffer[attr].buffer = 
-	       pipe_user_buffer_create(pipe->screen,
-				       (void *) ctx->Current.Attrib[mesaAttr],
-				       bytes,
-				       PIPE_BIND_VERTEX_BUFFER);
-            stride = 0;
-         }
-
-         vbuffer[attr].buffer_offset = 0;
-
-         /* Track user vertex buffers. */
-         pipe_resource_reference(&st->user_vb[attr], vbuffer->buffer);
-         st->user_vb_stride[attr] = stride;
-         st->num_user_vbs = MAX2(st->num_user_vbs, attr+1);
-      }
-
-      /* common-case setup */
-      vbuffer[attr].stride = stride; /* in bytes */
-
-      velements[attr].src_offset = 0;
-      velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
-      velements[attr].vertex_buffer_index = attr;
-      velements[attr].src_format
-         = st_pipe_vertex_format(arrays[mesaAttr]->Type,
-                                 arrays[mesaAttr]->Size,
-                                 arrays[mesaAttr]->Format,
-                                 arrays[mesaAttr]->Normalized);
-      assert(velements[attr].src_format);
-   }
-}
-
-
-static void
-setup_index_buffer(struct gl_context *ctx,
-                   const struct _mesa_index_buffer *ib,
-                   struct pipe_index_buffer *ibuffer)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-
-   memset(ibuffer, 0, sizeof(*ibuffer));
-   if (ib) {
-      struct gl_buffer_object *bufobj = ib->obj;
-
-      switch (ib->type) {
-      case GL_UNSIGNED_INT:
-         ibuffer->index_size = 4;
-         break;
-      case GL_UNSIGNED_SHORT:
-         ibuffer->index_size = 2;
-         break;
-      case GL_UNSIGNED_BYTE:
-         ibuffer->index_size = 1;
-         break;
-      default:
-         assert(0);
-	 return;
-      }
-
-      /* get/create the index buffer object */
-      if (bufobj && bufobj->Name) {
-         /* elements/indexes are in a real VBO */
-         struct st_buffer_object *stobj = st_buffer_object(bufobj);
-         pipe_resource_reference(&ibuffer->buffer, stobj->buffer);
-         ibuffer->offset = pointer_to_offset(ib->ptr);
-      }
-      else {
-         /* element/indicies are in user space memory */
-         ibuffer->buffer =
-            pipe_user_buffer_create(pipe->screen, (void *) ib->ptr,
-                                    ib->count * ibuffer->index_size,
-                                    PIPE_BIND_INDEX_BUFFER);
-      }
-   }
-}
-
-/**
- * Prior to drawing, check that any uniforms referenced by the
- * current shader have been set.  If a uniform has not been set,
- * issue a warning.
- */
-static void
-check_uniforms(struct gl_context *ctx)
-{
-   struct gl_shader_program *shProg[3] = {
-      ctx->Shader.CurrentVertexProgram,
-      ctx->Shader.CurrentGeometryProgram,
-      ctx->Shader.CurrentFragmentProgram,
-   };
-   unsigned j;
-
-   for (j = 0; j < 3; j++) {
-      unsigned i;
-
-      if (shProg[j] == NULL || !shProg[j]->LinkStatus)
-	 continue;
-
-      for (i = 0; i < shProg[j]->Uniforms->NumUniforms; i++) {
-         const struct gl_uniform *u = &shProg[j]->Uniforms->Uniforms[i];
-         if (!u->Initialized) {
-            _mesa_warning(ctx,
-                          "Using shader with uninitialized uniform: %s",
-                          u->Name);
-         }
-      }
-   }
-}
-
-
-/**
- * Translate OpenGL primtive type (GL_POINTS, GL_TRIANGLE_STRIP, etc) to
- * the corresponding Gallium type.
- */
-static unsigned
-translate_prim(const struct gl_context *ctx, unsigned prim)
-{
-   /* GL prims should match Gallium prims, spot-check a few */
-   assert(GL_POINTS == PIPE_PRIM_POINTS);
-   assert(GL_QUADS == PIPE_PRIM_QUADS);
-   assert(GL_TRIANGLE_STRIP_ADJACENCY == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY);
-
-   /* Avoid quadstrips if it's easy to do so:
-    * Note: it's imporant to do the correct trimming if we change the prim type!
-    * We do that wherever this function is called.
-    */
-   if (prim == GL_QUAD_STRIP &&
-       ctx->Light.ShadeModel != GL_FLAT &&
-       ctx->Polygon.FrontMode == GL_FILL &&
-       ctx->Polygon.BackMode == GL_FILL)
-      prim = GL_TRIANGLE_STRIP;
-
-   return prim;
-}
-
-
-static void
-st_validate_varrays(struct gl_context *ctx,
-                    const struct gl_client_array **arrays,
-                    unsigned max_index)
-{
-   struct st_context *st = st_context(ctx);
-   const struct st_vertex_program *vp;
-   const struct st_vp_variant *vpv;
-   struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
-   struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
-   unsigned num_vbuffers, num_velements;
-   GLuint attr;
-   unsigned i;
-
-   /* must get these after state validation! */
-   vp = st->vp;
-   vpv = st->vp_variant;
-
-   memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
-
-   /* Unreference any user vertex buffers. */
-   for (i = 0; i < st->num_user_vbs; i++) {
-      pipe_resource_reference(&st->user_vb[i], NULL);
-   }
-   st->num_user_vbs = 0;
-
-   /*
-    * Setup the vbuffer[] and velements[] arrays.
-    */
-   if (is_interleaved_arrays(vp, vpv, arrays)) {
-      setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer, velements,
-                                max_index);
-      num_vbuffers = 1;
-      num_velements = vpv->num_inputs;
-      if (num_velements == 0)
-         num_vbuffers = 0;
-   }
-   else {
-      setup_non_interleaved_attribs(ctx, vp, vpv, arrays,
-                                    vbuffer, velements, max_index);
-      num_vbuffers = vpv->num_inputs;
-      num_velements = vpv->num_inputs;
-   }
-
-   cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);
-   cso_set_vertex_elements(st->cso_context, num_velements, velements);
-
-   /* unreference buffers (frees wrapped user-space buffer objects)
-    * This is OK, because the pipe driver should reference buffers by itself
-    * in set_vertex_buffers. */
-   for (attr = 0; attr < num_vbuffers; attr++) {
-      pipe_resource_reference(&vbuffer[attr].buffer, NULL);
-      assert(!vbuffer[attr].buffer);
-   }
-}
-
-
-/**
- * This function gets plugged into the VBO module and is called when
- * we have something to render.
- * Basically, translate the information into the format expected by gallium.
- */
-void
-st_draw_vbo(struct gl_context *ctx,
-            const struct gl_client_array **arrays,
-            const struct _mesa_prim *prims,
-            GLuint nr_prims,
-            const struct _mesa_index_buffer *ib,
-	    GLboolean index_bounds_valid,
-            GLuint min_index,
-            GLuint max_index)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_index_buffer ibuffer;
-   struct pipe_draw_info info;
-   unsigned i;
-   GLboolean new_array =
-         st->dirty.st && (st->dirty.mesa & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;
-
-   /* Mesa core state should have been validated already */
-   assert(ctx->NewState == 0x0);
-
-   if (ib) {
-      /* Gallium probably doesn't want this in some cases. */
-      if (!index_bounds_valid)
-         if (!vbo_all_varyings_in_vbos(arrays))
-            vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
-   } else {
-      /* Get min/max index for non-indexed drawing. */
-      min_index = ~0;
-      max_index = 0;
-
-      for (i = 0; i < nr_prims; i++) {
-         min_index = MIN2(min_index, prims[i].start);
-         max_index = MAX2(max_index, prims[i].start + prims[i].count - 1);
-      }
-   }
-
-   /* Validate state. */
-   if (st->dirty.st) {
-      GLboolean vertDataEdgeFlags;
-
-      /* sanity check for pointer arithmetic below */
-      assert(sizeof(arrays[0]->Ptr[0]) == 1);
-
-      vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj &&
-                          arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name;
-      if (vertDataEdgeFlags != st->vertdata_edgeflags) {
-         st->vertdata_edgeflags = vertDataEdgeFlags;
-         st->dirty.st |= ST_NEW_EDGEFLAGS_DATA;
-      }
-
-      st_validate_state(st);
-
-      if (new_array) {
-         st_validate_varrays(ctx, arrays, max_index);
-      }
-
-#if 0
-      if (MESA_VERBOSE & VERBOSE_GLSL) {
-         check_uniforms(ctx);
-      }
-#else
-      (void) check_uniforms;
-#endif
-   }
-
-   /* Notify the driver that the content of user buffers may have been
-    * changed. */
-   if (!new_array && st->num_user_vbs) {
-      for (i = 0; i < st->num_user_vbs; i++) {
-         if (st->user_vb[i]) {
-            unsigned stride = st->user_vb_stride[i];
-
-            if (stride) {
-               pipe->redefine_user_buffer(pipe, st->user_vb[i],
-                                          min_index * stride,
-                                          (max_index + 1 - min_index) * stride);
-            } else {
-               /* stride == 0 */
-               pipe->redefine_user_buffer(pipe, st->user_vb[i],
-                                          0, st->user_vb[i]->width0);
-            }
-         }
-      }
-   }
-
-   setup_index_buffer(ctx, ib, &ibuffer);
-   pipe->set_index_buffer(pipe, &ibuffer);
-
-   util_draw_init_info(&info);
-   if (ib) {
-      info.indexed = TRUE;
-      if (min_index != ~0 && max_index != ~0) {
-         info.min_index = min_index;
-         info.max_index = max_index;
-      }
-   }
-
-   info.primitive_restart = st->ctx->Array.PrimitiveRestart;
-   info.restart_index = st->ctx->Array.RestartIndex;
-
-   /* do actual drawing */
-   for (i = 0; i < nr_prims; i++) {
-      info.mode = translate_prim( ctx, prims[i].mode );
-      info.start = prims[i].start;
-      info.count = prims[i].count;
-      info.instance_count = prims[i].num_instances;
-      info.index_bias = prims[i].basevertex;
-      if (!ib) {
-         info.min_index = info.start;
-         info.max_index = info.start + info.count - 1;
-      }
-
-      if (u_trim_pipe_prim(info.mode, &info.count))
-         pipe->draw_vbo(pipe, &info);
-   }
-
-   pipe_resource_reference(&ibuffer.buffer, NULL);
-}
-
-
-void st_init_draw( struct st_context *st )
-{
-   struct gl_context *ctx = st->ctx;
-
-   vbo_set_draw_func(ctx, st_draw_vbo);
-
-#if FEATURE_feedback || FEATURE_rastpos
-   st->draw = draw_create(st->pipe); /* for selection/feedback */
-
-   /* Disable draw options that might convert points/lines to tris, etc.
-    * as that would foul-up feedback/selection mode.
-    */
-   draw_wide_line_threshold(st->draw, 1000.0f);
-   draw_wide_point_threshold(st->draw, 1000.0f);
-   draw_enable_line_stipple(st->draw, FALSE);
-   draw_enable_point_sprites(st->draw, FALSE);
-#endif
-}
-
-
-void st_destroy_draw( struct st_context *st )
-{
-#if FEATURE_feedback || FEATURE_rastpos
-   draw_destroy(st->draw);
-#endif
-}
-
-
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+/*

+ * This file implements the st_draw_vbo() function which is called from

+ * Mesa's VBO module.  All point/line/triangle rendering is done through

+ * this function whether the user called glBegin/End, glDrawArrays,

+ * glDrawElements, glEvalMesh, or glCalList, etc.

+ *

+ * We basically convert the VBO's vertex attribute/array information into

+ * Gallium vertex state, bind the vertex buffer objects and call

+ * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays().

+ *

+ * Authors:

+ *   Keith Whitwell <keith@tungstengraphics.com>

+ */

+

+

+#include "main/imports.h"

+#include "main/image.h"

+#include "main/macros.h"

+#include "main/mfeatures.h"

+#include "program/prog_uniform.h"

+

+#include "vbo/vbo.h"

+

+#include "st_context.h"

+#include "st_atom.h"

+#include "st_cb_bufferobjects.h"

+#include "st_draw.h"

+#include "st_program.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "util/u_inlines.h"

+#include "util/u_format.h"

+#include "util/u_prim.h"

+#include "util/u_draw_quad.h"

+#include "draw/draw_context.h"

+#include "cso_cache/cso_context.h"

+

+

+static GLuint double_types[4] = {

+   PIPE_FORMAT_R64_FLOAT,

+   PIPE_FORMAT_R64G64_FLOAT,

+   PIPE_FORMAT_R64G64B64_FLOAT,

+   PIPE_FORMAT_R64G64B64A64_FLOAT

+};

+

+static GLuint float_types[4] = {

+   PIPE_FORMAT_R32_FLOAT,

+   PIPE_FORMAT_R32G32_FLOAT,

+   PIPE_FORMAT_R32G32B32_FLOAT,

+   PIPE_FORMAT_R32G32B32A32_FLOAT

+};

+

+static GLuint half_float_types[4] = {

+   PIPE_FORMAT_R16_FLOAT,

+   PIPE_FORMAT_R16G16_FLOAT,

+   PIPE_FORMAT_R16G16B16_FLOAT,

+   PIPE_FORMAT_R16G16B16A16_FLOAT

+};

+

+static GLuint uint_types_norm[4] = {

+   PIPE_FORMAT_R32_UNORM,

+   PIPE_FORMAT_R32G32_UNORM,

+   PIPE_FORMAT_R32G32B32_UNORM,

+   PIPE_FORMAT_R32G32B32A32_UNORM

+};

+

+static GLuint uint_types_scale[4] = {

+   PIPE_FORMAT_R32_USCALED,

+   PIPE_FORMAT_R32G32_USCALED,

+   PIPE_FORMAT_R32G32B32_USCALED,

+   PIPE_FORMAT_R32G32B32A32_USCALED

+};

+

+static GLuint int_types_norm[4] = {

+   PIPE_FORMAT_R32_SNORM,

+   PIPE_FORMAT_R32G32_SNORM,

+   PIPE_FORMAT_R32G32B32_SNORM,

+   PIPE_FORMAT_R32G32B32A32_SNORM

+};

+

+static GLuint int_types_scale[4] = {

+   PIPE_FORMAT_R32_SSCALED,

+   PIPE_FORMAT_R32G32_SSCALED,

+   PIPE_FORMAT_R32G32B32_SSCALED,

+   PIPE_FORMAT_R32G32B32A32_SSCALED

+};

+

+static GLuint ushort_types_norm[4] = {

+   PIPE_FORMAT_R16_UNORM,

+   PIPE_FORMAT_R16G16_UNORM,

+   PIPE_FORMAT_R16G16B16_UNORM,

+   PIPE_FORMAT_R16G16B16A16_UNORM

+};

+

+static GLuint ushort_types_scale[4] = {

+   PIPE_FORMAT_R16_USCALED,

+   PIPE_FORMAT_R16G16_USCALED,

+   PIPE_FORMAT_R16G16B16_USCALED,

+   PIPE_FORMAT_R16G16B16A16_USCALED

+};

+

+static GLuint short_types_norm[4] = {

+   PIPE_FORMAT_R16_SNORM,

+   PIPE_FORMAT_R16G16_SNORM,

+   PIPE_FORMAT_R16G16B16_SNORM,

+   PIPE_FORMAT_R16G16B16A16_SNORM

+};

+

+static GLuint short_types_scale[4] = {

+   PIPE_FORMAT_R16_SSCALED,

+   PIPE_FORMAT_R16G16_SSCALED,

+   PIPE_FORMAT_R16G16B16_SSCALED,

+   PIPE_FORMAT_R16G16B16A16_SSCALED

+};

+

+static GLuint ubyte_types_norm[4] = {

+   PIPE_FORMAT_R8_UNORM,

+   PIPE_FORMAT_R8G8_UNORM,

+   PIPE_FORMAT_R8G8B8_UNORM,

+   PIPE_FORMAT_R8G8B8A8_UNORM

+};

+

+static GLuint ubyte_types_scale[4] = {

+   PIPE_FORMAT_R8_USCALED,

+   PIPE_FORMAT_R8G8_USCALED,

+   PIPE_FORMAT_R8G8B8_USCALED,

+   PIPE_FORMAT_R8G8B8A8_USCALED

+};

+

+static GLuint byte_types_norm[4] = {

+   PIPE_FORMAT_R8_SNORM,

+   PIPE_FORMAT_R8G8_SNORM,

+   PIPE_FORMAT_R8G8B8_SNORM,

+   PIPE_FORMAT_R8G8B8A8_SNORM

+};

+

+static GLuint byte_types_scale[4] = {

+   PIPE_FORMAT_R8_SSCALED,

+   PIPE_FORMAT_R8G8_SSCALED,

+   PIPE_FORMAT_R8G8B8_SSCALED,

+   PIPE_FORMAT_R8G8B8A8_SSCALED

+};

+

+static GLuint fixed_types[4] = {

+   PIPE_FORMAT_R32_FIXED,

+   PIPE_FORMAT_R32G32_FIXED,

+   PIPE_FORMAT_R32G32B32_FIXED,

+   PIPE_FORMAT_R32G32B32A32_FIXED

+};

+

+

+

+/**

+ * Return a PIPE_FORMAT_x for the given GL datatype and size.

+ */

+GLuint

+st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,

+                      GLboolean normalized)

+{

+   assert((type >= GL_BYTE && type <= GL_DOUBLE) ||

+          type == GL_FIXED || type == GL_HALF_FLOAT);

+   assert(size >= 1);

+   assert(size <= 4);

+   assert(format == GL_RGBA || format == GL_BGRA);

+

+   if (format == GL_BGRA) {

+      /* this is an odd-ball case */

+      assert(type == GL_UNSIGNED_BYTE);

+      assert(normalized);

+      return PIPE_FORMAT_B8G8R8A8_UNORM;

+   }

+

+   if (normalized) {

+      switch (type) {

+      case GL_DOUBLE: return double_types[size-1];

+      case GL_FLOAT: return float_types[size-1];

+      case GL_HALF_FLOAT: return half_float_types[size-1];

+      case GL_INT: return int_types_norm[size-1];

+      case GL_SHORT: return short_types_norm[size-1];

+      case GL_BYTE: return byte_types_norm[size-1];

+      case GL_UNSIGNED_INT: return uint_types_norm[size-1];

+      case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];

+      case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];

+      case GL_FIXED: return fixed_types[size-1];

+      default: assert(0); return 0;

+      }      

+   }

+   else {

+      switch (type) {

+      case GL_DOUBLE: return double_types[size-1];

+      case GL_FLOAT: return float_types[size-1];

+      case GL_HALF_FLOAT: return half_float_types[size-1];

+      case GL_INT: return int_types_scale[size-1];

+      case GL_SHORT: return short_types_scale[size-1];

+      case GL_BYTE: return byte_types_scale[size-1];

+      case GL_UNSIGNED_INT: return uint_types_scale[size-1];

+      case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];

+      case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];

+      case GL_FIXED: return fixed_types[size-1];

+      default: assert(0); return 0;

+      }      

+   }

+   return 0; /* silence compiler warning */

+}

+

+

+

+

+

+/**

+ * Examine the active arrays to determine if we have interleaved

+ * vertex arrays all living in one VBO, or all living in user space.

+ * \param userSpace  returns whether the arrays are in user space.

+ */

+static GLboolean

+is_interleaved_arrays(const struct st_vertex_program *vp,

+                      const struct st_vp_variant *vpv,

+                      const struct gl_client_array **arrays)

+{

+   GLuint attr;

+   const struct gl_buffer_object *firstBufObj = NULL;

+   GLint firstStride = -1;

+   const GLubyte *client_addr = NULL;

+

+   for (attr = 0; attr < vpv->num_inputs; attr++) {

+      const GLuint mesaAttr = vp->index_to_input[attr];

+      const struct gl_buffer_object *bufObj = arrays[mesaAttr]->BufferObj;

+      const GLsizei stride = arrays[mesaAttr]->StrideB; /* in bytes */

+

+      if (firstStride < 0) {

+         firstStride = stride;

+      }

+      else if (firstStride != stride) {

+         return GL_FALSE;

+      }

+

+      if (!bufObj || !bufObj->Name) {

+         /* Try to detect if the client-space arrays are

+          * "close" to each other.

+          */

+         if (!client_addr) {

+            client_addr = arrays[mesaAttr]->Ptr;

+         }

+         else if (abs(arrays[mesaAttr]->Ptr - client_addr) > firstStride) {

+            /* arrays start too far apart */

+            return GL_FALSE;

+         }

+      }

+      else if (!firstBufObj) {

+         firstBufObj = bufObj;

+      }

+      else if (bufObj != firstBufObj) {

+         return GL_FALSE;

+      }

+   }

+

+   return GL_TRUE;

+}

+

+

+/**

+ * Set up for drawing interleaved arrays that all live in one VBO

+ * or all live in user space.

+ * \param vbuffer  returns vertex buffer info

+ * \param velements  returns vertex element info

+ */

+static void

+setup_interleaved_attribs(struct gl_context *ctx,

+                          const struct st_vertex_program *vp,

+                          const struct st_vp_variant *vpv,

+                          const struct gl_client_array **arrays,

+                          struct pipe_vertex_buffer *vbuffer,

+                          struct pipe_vertex_element velements[],

+                          unsigned max_index)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   GLuint attr;

+   const GLubyte *low_addr = NULL;

+

+   /* Find the lowest address. */

+   for (attr = 0; attr < vpv->num_inputs; attr++) {

+      const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;

+

+      low_addr = !low_addr ? start : MIN2(low_addr, start);

+   }

+

+   for (attr = 0; attr < vpv->num_inputs; attr++) {

+      const GLuint mesaAttr = vp->index_to_input[attr];

+      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;

+      struct st_buffer_object *stobj = st_buffer_object(bufobj);

+      GLsizei stride = arrays[mesaAttr]->StrideB;

+

+      if (attr == 0) {

+         if (bufobj && bufobj->Name) {

+            vbuffer->buffer = NULL;

+            pipe_resource_reference(&vbuffer->buffer, stobj->buffer);

+            vbuffer->buffer_offset = pointer_to_offset(low_addr);

+         } else {

+            vbuffer->buffer =

+               pipe_user_buffer_create(pipe->screen, (void*)low_addr,

+                                       stride * (max_index + 1),

+				       PIPE_BIND_VERTEX_BUFFER);

+            vbuffer->buffer_offset = 0;

+

+            /* Track user vertex buffers. */

+            pipe_resource_reference(&st->user_vb[0], vbuffer->buffer);

+            st->user_vb_stride[0] = stride;

+            st->num_user_vbs = 1;

+         }

+         vbuffer->stride = stride; /* in bytes */

+      }

+

+      velements[attr].src_offset =

+         (unsigned) (arrays[mesaAttr]->Ptr - low_addr);

+      velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;

+      velements[attr].vertex_buffer_index = 0;

+      velements[attr].src_format =

+         st_pipe_vertex_format(arrays[mesaAttr]->Type,

+                               arrays[mesaAttr]->Size,

+                               arrays[mesaAttr]->Format,

+                               arrays[mesaAttr]->Normalized);

+      assert(velements[attr].src_format);

+   }

+}

+

+

+/**

+ * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each

+ * vertex attribute.

+ * \param vbuffer  returns vertex buffer info

+ * \param velements  returns vertex element info

+ */

+static void

+setup_non_interleaved_attribs(struct gl_context *ctx,

+                              const struct st_vertex_program *vp,

+                              const struct st_vp_variant *vpv,

+                              const struct gl_client_array **arrays,

+                              struct pipe_vertex_buffer vbuffer[],

+                              struct pipe_vertex_element velements[],

+                              unsigned max_index)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   GLuint attr;

+

+   for (attr = 0; attr < vpv->num_inputs; attr++) {

+      const GLuint mesaAttr = vp->index_to_input[attr];

+      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;

+      GLsizei stride = arrays[mesaAttr]->StrideB;

+

+      if (bufobj && bufobj->Name) {

+         /* Attribute data is in a VBO.

+          * Recall that for VBOs, the gl_client_array->Ptr field is

+          * really an offset from the start of the VBO, not a pointer.

+          */

+         struct st_buffer_object *stobj = st_buffer_object(bufobj);

+         assert(stobj->buffer);

+

+         vbuffer[attr].buffer = NULL;

+         pipe_resource_reference(&vbuffer[attr].buffer, stobj->buffer);

+         vbuffer[attr].buffer_offset = pointer_to_offset(arrays[mesaAttr]->Ptr);

+      }

+      else {

+         /* wrap user data */

+         if (arrays[mesaAttr]->Ptr) {

+            vbuffer[attr].buffer = 

+	       pipe_user_buffer_create(pipe->screen,

+				       (void *) arrays[mesaAttr]->Ptr,

+				       stride * (max_index + 1),

+				       PIPE_BIND_VERTEX_BUFFER);

+         }

+         else {

+            /* no array, use ctx->Current.Attrib[] value */

+            uint bytes = sizeof(ctx->Current.Attrib[0]);

+            vbuffer[attr].buffer = 

+	       pipe_user_buffer_create(pipe->screen,

+				       (void *) ctx->Current.Attrib[mesaAttr],

+				       bytes,

+				       PIPE_BIND_VERTEX_BUFFER);

+            stride = 0;

+         }

+

+         vbuffer[attr].buffer_offset = 0;

+

+         /* Track user vertex buffers. */

+         pipe_resource_reference(&st->user_vb[attr], vbuffer->buffer);

+         st->user_vb_stride[attr] = stride;

+         st->num_user_vbs = MAX2(st->num_user_vbs, attr+1);

+      }

+

+      /* common-case setup */

+      vbuffer[attr].stride = stride; /* in bytes */

+

+      velements[attr].src_offset = 0;

+      velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;

+      velements[attr].vertex_buffer_index = attr;

+      velements[attr].src_format

+         = st_pipe_vertex_format(arrays[mesaAttr]->Type,

+                                 arrays[mesaAttr]->Size,

+                                 arrays[mesaAttr]->Format,

+                                 arrays[mesaAttr]->Normalized);

+      assert(velements[attr].src_format);

+   }

+}

+

+

+static void

+setup_index_buffer(struct gl_context *ctx,

+                   const struct _mesa_index_buffer *ib,

+                   struct pipe_index_buffer *ibuffer)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+

+   memset(ibuffer, 0, sizeof(*ibuffer));

+   if (ib) {

+      struct gl_buffer_object *bufobj = ib->obj;

+

+      switch (ib->type) {

+      case GL_UNSIGNED_INT:

+         ibuffer->index_size = 4;

+         break;

+      case GL_UNSIGNED_SHORT:

+         ibuffer->index_size = 2;

+         break;

+      case GL_UNSIGNED_BYTE:

+         ibuffer->index_size = 1;

+         break;

+      default:

+         assert(0);

+	 return;

+      }

+

+      /* get/create the index buffer object */

+      if (bufobj && bufobj->Name) {

+         /* elements/indexes are in a real VBO */

+         struct st_buffer_object *stobj = st_buffer_object(bufobj);

+         pipe_resource_reference(&ibuffer->buffer, stobj->buffer);

+         ibuffer->offset = pointer_to_offset(ib->ptr);

+      }

+      else {

+         /* element/indicies are in user space memory */

+         ibuffer->buffer =

+            pipe_user_buffer_create(pipe->screen, (void *) ib->ptr,

+                                    ib->count * ibuffer->index_size,

+                                    PIPE_BIND_INDEX_BUFFER);

+      }

+   }

+}

+

+/**

+ * Prior to drawing, check that any uniforms referenced by the

+ * current shader have been set.  If a uniform has not been set,

+ * issue a warning.

+ */

+static void

+check_uniforms(struct gl_context *ctx)

+{

+   struct gl_shader_program *shProg[3] = {

+      ctx->Shader.CurrentVertexProgram,

+      ctx->Shader.CurrentGeometryProgram,

+      ctx->Shader.CurrentFragmentProgram,

+   };

+   unsigned j;

+

+   for (j = 0; j < 3; j++) {

+      unsigned i;

+

+      if (shProg[j] == NULL || !shProg[j]->LinkStatus)

+	 continue;

+

+      for (i = 0; i < shProg[j]->Uniforms->NumUniforms; i++) {

+         const struct gl_uniform *u = &shProg[j]->Uniforms->Uniforms[i];

+         if (!u->Initialized) {

+            _mesa_warning(ctx,

+                          "Using shader with uninitialized uniform: %s",

+                          u->Name);

+         }

+      }

+   }

+}

+

+

+/**

+ * Translate OpenGL primtive type (GL_POINTS, GL_TRIANGLE_STRIP, etc) to

+ * the corresponding Gallium type.

+ */

+static unsigned

+translate_prim(const struct gl_context *ctx, unsigned prim)

+{

+   /* GL prims should match Gallium prims, spot-check a few */

+   assert(GL_POINTS == PIPE_PRIM_POINTS);

+   assert(GL_QUADS == PIPE_PRIM_QUADS);

+   assert(GL_TRIANGLE_STRIP_ADJACENCY == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY);

+

+   /* Avoid quadstrips if it's easy to do so:

+    * Note: it's imporant to do the correct trimming if we change the prim type!

+    * We do that wherever this function is called.

+    */

+   if (prim == GL_QUAD_STRIP &&

+       ctx->Light.ShadeModel != GL_FLAT &&

+       ctx->Polygon.FrontMode == GL_FILL &&

+       ctx->Polygon.BackMode == GL_FILL)

+      prim = GL_TRIANGLE_STRIP;

+

+   return prim;

+}

+

+

+static void

+st_validate_varrays(struct gl_context *ctx,

+                    const struct gl_client_array **arrays,

+                    unsigned max_index)

+{

+   struct st_context *st = st_context(ctx);

+   const struct st_vertex_program *vp;

+   const struct st_vp_variant *vpv;

+   struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];

+   struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];

+   unsigned num_vbuffers, num_velements;

+   GLuint attr;

+   unsigned i;

+

+   /* must get these after state validation! */

+   vp = st->vp;

+   vpv = st->vp_variant;

+

+   memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);

+

+   /* Unreference any user vertex buffers. */

+   for (i = 0; i < st->num_user_vbs; i++) {

+      pipe_resource_reference(&st->user_vb[i], NULL);

+   }

+   st->num_user_vbs = 0;

+

+   /*

+    * Setup the vbuffer[] and velements[] arrays.

+    */

+   if (is_interleaved_arrays(vp, vpv, arrays)) {

+      setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer, velements,

+                                max_index);

+      num_vbuffers = 1;

+      num_velements = vpv->num_inputs;

+      if (num_velements == 0)

+         num_vbuffers = 0;

+   }

+   else {

+      setup_non_interleaved_attribs(ctx, vp, vpv, arrays,

+                                    vbuffer, velements, max_index);

+      num_vbuffers = vpv->num_inputs;

+      num_velements = vpv->num_inputs;

+   }

+

+   cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);

+   cso_set_vertex_elements(st->cso_context, num_velements, velements);

+

+   /* unreference buffers (frees wrapped user-space buffer objects)

+    * This is OK, because the pipe driver should reference buffers by itself

+    * in set_vertex_buffers. */

+   for (attr = 0; attr < num_vbuffers; attr++) {

+      pipe_resource_reference(&vbuffer[attr].buffer, NULL);

+      assert(!vbuffer[attr].buffer);

+   }

+}

+

+

+/**

+ * This function gets plugged into the VBO module and is called when

+ * we have something to render.

+ * Basically, translate the information into the format expected by gallium.

+ */

+void

+st_draw_vbo(struct gl_context *ctx,

+            const struct gl_client_array **arrays,

+            const struct _mesa_prim *prims,

+            GLuint nr_prims,

+            const struct _mesa_index_buffer *ib,

+	    GLboolean index_bounds_valid,

+            GLuint min_index,

+            GLuint max_index)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_index_buffer ibuffer;

+   struct pipe_draw_info info;

+   unsigned i;

+   GLboolean new_array =

+         st->dirty.st && (st->dirty.mesa & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;

+

+   /* Mesa core state should have been validated already */

+   assert(ctx->NewState == 0x0);

+

+   if (ib) {

+      /* Gallium probably doesn't want this in some cases. */

+      if (!index_bounds_valid)

+         if (!vbo_all_varyings_in_vbos(arrays))

+            vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);

+   } else {

+      /* Get min/max index for non-indexed drawing. */

+      min_index = ~0;

+      max_index = 0;

+

+      for (i = 0; i < nr_prims; i++) {

+         min_index = MIN2(min_index, prims[i].start);

+         max_index = MAX2(max_index, prims[i].start + prims[i].count - 1);

+      }

+   }

+

+   /* Validate state. */

+   if (st->dirty.st) {

+      GLboolean vertDataEdgeFlags;

+

+      /* sanity check for pointer arithmetic below */

+      assert(sizeof(arrays[0]->Ptr[0]) == 1);

+

+      vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj &&

+                          arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name;

+      if (vertDataEdgeFlags != st->vertdata_edgeflags) {

+         st->vertdata_edgeflags = vertDataEdgeFlags;

+         st->dirty.st |= ST_NEW_EDGEFLAGS_DATA;

+      }

+

+      st_validate_state(st);

+

+      if (new_array) {

+         st_validate_varrays(ctx, arrays, max_index);

+      }

+

+#if 0

+      if (MESA_VERBOSE & VERBOSE_GLSL) {

+         check_uniforms(ctx);

+      }

+#else

+      (void) check_uniforms;

+#endif

+   }

+

+   /* Notify the driver that the content of user buffers may have been

+    * changed. */

+   if (!new_array && st->num_user_vbs) {

+      for (i = 0; i < st->num_user_vbs; i++) {

+         if (st->user_vb[i]) {

+            unsigned stride = st->user_vb_stride[i];

+

+            if (stride) {

+               pipe->redefine_user_buffer(pipe, st->user_vb[i],

+                                          min_index * stride,

+                                          (max_index + 1 - min_index) * stride);

+            } else {

+               /* stride == 0 */

+               pipe->redefine_user_buffer(pipe, st->user_vb[i],

+                                          0, st->user_vb[i]->width0);

+            }

+         }

+      }

+   }

+

+   setup_index_buffer(ctx, ib, &ibuffer);

+   pipe->set_index_buffer(pipe, &ibuffer);

+

+   util_draw_init_info(&info);

+   if (ib) {

+      info.indexed = TRUE;

+      if (min_index != ~0 && max_index != ~0) {

+         info.min_index = min_index;

+         info.max_index = max_index;

+      }

+   }

+

+   info.primitive_restart = st->ctx->Array.PrimitiveRestart;

+   info.restart_index = st->ctx->Array.RestartIndex;

+

+   /* do actual drawing */

+   for (i = 0; i < nr_prims; i++) {

+      info.mode = translate_prim( ctx, prims[i].mode );

+      info.start = prims[i].start;

+      info.count = prims[i].count;

+      info.instance_count = prims[i].num_instances;

+      info.index_bias = prims[i].basevertex;

+      if (!ib) {

+         info.min_index = info.start;

+         info.max_index = info.start + info.count - 1;

+      }

+

+      if (u_trim_pipe_prim(info.mode, &info.count))

+         pipe->draw_vbo(pipe, &info);

+   }

+

+   pipe_resource_reference(&ibuffer.buffer, NULL);

+}

+

+

+void st_init_draw( struct st_context *st )

+{

+   struct gl_context *ctx = st->ctx;

+

+   vbo_set_draw_func(ctx, st_draw_vbo);

+

+#if FEATURE_feedback || FEATURE_rastpos

+   st->draw = draw_create(st->pipe); /* for selection/feedback */

+

+   /* Disable draw options that might convert points/lines to tris, etc.

+    * as that would foul-up feedback/selection mode.

+    */

+   draw_wide_line_threshold(st->draw, 1000.0f);

+   draw_wide_point_threshold(st->draw, 1000.0f);

+   draw_enable_line_stipple(st->draw, FALSE);

+   draw_enable_point_sprites(st->draw, FALSE);

+#endif

+}

+

+

+void st_destroy_draw( struct st_context *st )

+{

+#if FEATURE_feedback || FEATURE_rastpos

+   draw_destroy(st->draw);

+#endif

+}

+

+

diff --git a/mesalib/src/mesa/state_tracker/st_draw_feedback.c b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
index 1e1220bfe..f0734eae0 100644
--- a/mesalib/src/mesa/state_tracker/st_draw_feedback.c
+++ b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
@@ -1,277 +1,277 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-
-#include "vbo/vbo.h"
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_bufferobjects.h"
-#include "st_draw.h"
-#include "st_program.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-
-#include "draw/draw_private.h"
-#include "draw/draw_context.h"
-
-
-#if FEATURE_feedback || FEATURE_rastpos
-
-/**
- * Set the (private) draw module's post-transformed vertex format when in
- * GL_SELECT or GL_FEEDBACK mode or for glRasterPos.
- */
-static void
-set_feedback_vertex_format(struct gl_context *ctx)
-{
-#if 0
-   struct st_context *st = st_context(ctx);
-   struct vertex_info vinfo;
-   GLuint i;
-
-   memset(&vinfo, 0, sizeof(vinfo));
-
-   if (ctx->RenderMode == GL_SELECT) {
-      assert(ctx->RenderMode == GL_SELECT);
-      vinfo.num_attribs = 1;
-      vinfo.format[0] = FORMAT_4F;
-      vinfo.interp_mode[0] = INTERP_LINEAR;
-   }
-   else {
-      /* GL_FEEDBACK, or glRasterPos */
-      /* emit all attribs (pos, color, texcoord) as GLfloat[4] */
-      vinfo.num_attribs = st->state.vs->cso->state.num_outputs;
-      for (i = 0; i < vinfo.num_attribs; i++) {
-         vinfo.format[i] = FORMAT_4F;
-         vinfo.interp_mode[i] = INTERP_LINEAR;
-      }
-   }
-
-   draw_set_vertex_info(st->draw, &vinfo);
-#endif
-}
-
-
-/**
- * Called by VBO to draw arrays when in selection or feedback mode and
- * to implement glRasterPos.
- * This is very much like the normal draw_vbo() function above.
- * Look at code refactoring some day.
- * Might move this into the failover module some day.
- */
-void
-st_feedback_draw_vbo(struct gl_context *ctx,
-                     const struct gl_client_array **arrays,
-                     const struct _mesa_prim *prims,
-                     GLuint nr_prims,
-                     const struct _mesa_index_buffer *ib,
-		     GLboolean index_bounds_valid,
-                     GLuint min_index,
-                     GLuint max_index)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct draw_context *draw = st->draw;
-   const struct st_vertex_program *vp;
-   const struct pipe_shader_state *vs;
-   struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
-   struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
-   struct pipe_index_buffer ibuffer;
-   struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
-   struct pipe_transfer *ib_transfer = NULL;
-   GLuint attr, i;
-   const void *mapped_indices = NULL;
-
-   assert(draw);
-
-   st_validate_state(st);
-
-   if (!index_bounds_valid)
-      vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
-
-   /* must get these after state validation! */
-   vp = st->vp;
-   vs = &st->vp_variant->tgsi;
-
-   if (!st->vp_variant->draw_shader) {
-      st->vp_variant->draw_shader = draw_create_vertex_shader(draw, vs);
-   }
-
-   /*
-    * Set up the draw module's state.
-    *
-    * We'd like to do this less frequently, but the normal state-update
-    * code sends state updates to the pipe, not to our private draw module.
-    */
-   assert(draw);
-   draw_set_viewport_state(draw, &st->state.viewport);
-   draw_set_clip_state(draw, &st->state.clip);
-   draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);
-   draw_bind_vertex_shader(draw, st->vp_variant->draw_shader);
-   set_feedback_vertex_format(ctx);
-
-   /* loop over TGSI shader inputs to determine vertex buffer
-    * and attribute info
-    */
-   for (attr = 0; attr < vp->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
-      void *map;
-
-      if (bufobj && bufobj->Name) {
-         /* Attribute data is in a VBO.
-          * Recall that for VBOs, the gl_client_array->Ptr field is
-          * really an offset from the start of the VBO, not a pointer.
-          */
-         struct st_buffer_object *stobj = st_buffer_object(bufobj);
-         assert(stobj->buffer);
-
-         vbuffers[attr].buffer = NULL;
-         pipe_resource_reference(&vbuffers[attr].buffer, stobj->buffer);
-         vbuffers[attr].buffer_offset = pointer_to_offset(arrays[0]->Ptr);
-         velements[attr].src_offset = arrays[mesaAttr]->Ptr - arrays[0]->Ptr;
-      }
-      else {
-         /* attribute data is in user-space memory, not a VBO */
-         uint bytes = (arrays[mesaAttr]->Size
-                       * _mesa_sizeof_type(arrays[mesaAttr]->Type)
-                       * (max_index + 1));
-
-         /* wrap user data */
-         vbuffers[attr].buffer
-            = pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,
-                                      bytes,
-				      PIPE_BIND_VERTEX_BUFFER);
-         vbuffers[attr].buffer_offset = 0;
-         velements[attr].src_offset = 0;
-      }
-
-      /* common-case setup */
-      vbuffers[attr].stride = arrays[mesaAttr]->StrideB; /* in bytes */
-      velements[attr].instance_divisor = 0;
-      velements[attr].vertex_buffer_index = attr;
-      velements[attr].src_format = 
-         st_pipe_vertex_format(arrays[mesaAttr]->Type,
-                               arrays[mesaAttr]->Size,
-                               arrays[mesaAttr]->Format,
-                               arrays[mesaAttr]->Normalized);
-      assert(velements[attr].src_format);
-
-      /* tell draw about this attribute */
-#if 0
-      draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
-#endif
-
-      /* map the attrib buffer */
-      map = pipe_buffer_map(pipe, vbuffers[attr].buffer,
-                            PIPE_TRANSFER_READ,
-			    &vb_transfer[attr]);
-      draw_set_mapped_vertex_buffer(draw, attr, map);
-   }
-
-   draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);
-   draw_set_vertex_elements(draw, vp->num_inputs, velements);
-
-   memset(&ibuffer, 0, sizeof(ibuffer));
-   if (ib) {
-      struct gl_buffer_object *bufobj = ib->obj;
-
-      switch (ib->type) {
-      case GL_UNSIGNED_INT:
-         ibuffer.index_size = 4;
-         break;
-      case GL_UNSIGNED_SHORT:
-         ibuffer.index_size = 2;
-         break;
-      case GL_UNSIGNED_BYTE:
-         ibuffer.index_size = 1;
-         break;
-      default:
-         assert(0);
-	 goto out_unref_vertex;
-      }
-
-      if (bufobj && bufobj->Name) {
-         struct st_buffer_object *stobj = st_buffer_object(bufobj);
-
-         pipe_resource_reference(&ibuffer.buffer, stobj->buffer);
-         ibuffer.offset = pointer_to_offset(ib->ptr);
-
-         mapped_indices = pipe_buffer_map(pipe, stobj->buffer,
-                                          PIPE_TRANSFER_READ, &ib_transfer);
-      }
-      else {
-         /* skip setting ibuffer.buffer as the draw module does not use it */
-         mapped_indices = ib->ptr;
-      }
-
-      draw_set_index_buffer(draw, &ibuffer);
-      draw_set_mapped_index_buffer(draw, mapped_indices);
-   }
-
-   /* set the constant buffer */
-   draw_set_mapped_constant_buffer(st->draw, PIPE_SHADER_VERTEX, 0,
-                                   st->state.constants[PIPE_SHADER_VERTEX].ptr,
-                                   st->state.constants[PIPE_SHADER_VERTEX].size);
-
-
-   /* draw here */
-   for (i = 0; i < nr_prims; i++) {
-      draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);
-   }
-
-
-   /*
-    * unmap vertex/index buffers
-    */
-   if (ib) {
-      draw_set_mapped_index_buffer(draw, NULL);
-      draw_set_index_buffer(draw, NULL);
-
-      if (ib_transfer)
-         pipe_buffer_unmap(pipe, ib_transfer);
-      pipe_resource_reference(&ibuffer.buffer, NULL);
-   }
-
- out_unref_vertex:
-   for (attr = 0; attr < vp->num_inputs; attr++) {
-      pipe_buffer_unmap(pipe, vb_transfer[attr]);
-      draw_set_mapped_vertex_buffer(draw, attr, NULL);
-      pipe_resource_reference(&vbuffers[attr].buffer, NULL);
-   }
-   draw_set_vertex_buffers(draw, 0, NULL);
-}
-
-#endif /* FEATURE_feedback || FEATURE_rastpos */
-
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+#include "main/imports.h"

+#include "main/image.h"

+#include "main/macros.h"

+#include "main/mfeatures.h"

+

+#include "vbo/vbo.h"

+

+#include "st_context.h"

+#include "st_atom.h"

+#include "st_cb_bufferobjects.h"

+#include "st_draw.h"

+#include "st_program.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "util/u_inlines.h"

+

+#include "draw/draw_private.h"

+#include "draw/draw_context.h"

+

+

+#if FEATURE_feedback || FEATURE_rastpos

+

+/**

+ * Set the (private) draw module's post-transformed vertex format when in

+ * GL_SELECT or GL_FEEDBACK mode or for glRasterPos.

+ */

+static void

+set_feedback_vertex_format(struct gl_context *ctx)

+{

+#if 0

+   struct st_context *st = st_context(ctx);

+   struct vertex_info vinfo;

+   GLuint i;

+

+   memset(&vinfo, 0, sizeof(vinfo));

+

+   if (ctx->RenderMode == GL_SELECT) {

+      assert(ctx->RenderMode == GL_SELECT);

+      vinfo.num_attribs = 1;

+      vinfo.format[0] = FORMAT_4F;

+      vinfo.interp_mode[0] = INTERP_LINEAR;

+   }

+   else {

+      /* GL_FEEDBACK, or glRasterPos */

+      /* emit all attribs (pos, color, texcoord) as GLfloat[4] */

+      vinfo.num_attribs = st->state.vs->cso->state.num_outputs;

+      for (i = 0; i < vinfo.num_attribs; i++) {

+         vinfo.format[i] = FORMAT_4F;

+         vinfo.interp_mode[i] = INTERP_LINEAR;

+      }

+   }

+

+   draw_set_vertex_info(st->draw, &vinfo);

+#endif

+}

+

+

+/**

+ * Called by VBO to draw arrays when in selection or feedback mode and

+ * to implement glRasterPos.

+ * This is very much like the normal draw_vbo() function above.

+ * Look at code refactoring some day.

+ * Might move this into the failover module some day.

+ */

+void

+st_feedback_draw_vbo(struct gl_context *ctx,

+                     const struct gl_client_array **arrays,

+                     const struct _mesa_prim *prims,

+                     GLuint nr_prims,

+                     const struct _mesa_index_buffer *ib,

+		     GLboolean index_bounds_valid,

+                     GLuint min_index,

+                     GLuint max_index)

+{

+   struct st_context *st = st_context(ctx);

+   struct pipe_context *pipe = st->pipe;

+   struct draw_context *draw = st->draw;

+   const struct st_vertex_program *vp;

+   const struct pipe_shader_state *vs;

+   struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];

+   struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];

+   struct pipe_index_buffer ibuffer;

+   struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];

+   struct pipe_transfer *ib_transfer = NULL;

+   GLuint attr, i;

+   const void *mapped_indices = NULL;

+

+   assert(draw);

+

+   st_validate_state(st);

+

+   if (!index_bounds_valid)

+      vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);

+

+   /* must get these after state validation! */

+   vp = st->vp;

+   vs = &st->vp_variant->tgsi;

+

+   if (!st->vp_variant->draw_shader) {

+      st->vp_variant->draw_shader = draw_create_vertex_shader(draw, vs);

+   }

+

+   /*

+    * Set up the draw module's state.

+    *

+    * We'd like to do this less frequently, but the normal state-update

+    * code sends state updates to the pipe, not to our private draw module.

+    */

+   assert(draw);

+   draw_set_viewport_state(draw, &st->state.viewport);

+   draw_set_clip_state(draw, &st->state.clip);

+   draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);

+   draw_bind_vertex_shader(draw, st->vp_variant->draw_shader);

+   set_feedback_vertex_format(ctx);

+

+   /* loop over TGSI shader inputs to determine vertex buffer

+    * and attribute info

+    */

+   for (attr = 0; attr < vp->num_inputs; attr++) {

+      const GLuint mesaAttr = vp->index_to_input[attr];

+      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;

+      void *map;

+

+      if (bufobj && bufobj->Name) {

+         /* Attribute data is in a VBO.

+          * Recall that for VBOs, the gl_client_array->Ptr field is

+          * really an offset from the start of the VBO, not a pointer.

+          */

+         struct st_buffer_object *stobj = st_buffer_object(bufobj);

+         assert(stobj->buffer);

+

+         vbuffers[attr].buffer = NULL;

+         pipe_resource_reference(&vbuffers[attr].buffer, stobj->buffer);

+         vbuffers[attr].buffer_offset = pointer_to_offset(arrays[0]->Ptr);

+         velements[attr].src_offset = arrays[mesaAttr]->Ptr - arrays[0]->Ptr;

+      }

+      else {

+         /* attribute data is in user-space memory, not a VBO */

+         uint bytes = (arrays[mesaAttr]->Size

+                       * _mesa_sizeof_type(arrays[mesaAttr]->Type)

+                       * (max_index + 1));

+

+         /* wrap user data */

+         vbuffers[attr].buffer

+            = pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,

+                                      bytes,

+				      PIPE_BIND_VERTEX_BUFFER);

+         vbuffers[attr].buffer_offset = 0;

+         velements[attr].src_offset = 0;

+      }

+

+      /* common-case setup */

+      vbuffers[attr].stride = arrays[mesaAttr]->StrideB; /* in bytes */

+      velements[attr].instance_divisor = 0;

+      velements[attr].vertex_buffer_index = attr;

+      velements[attr].src_format = 

+         st_pipe_vertex_format(arrays[mesaAttr]->Type,

+                               arrays[mesaAttr]->Size,

+                               arrays[mesaAttr]->Format,

+                               arrays[mesaAttr]->Normalized);

+      assert(velements[attr].src_format);

+

+      /* tell draw about this attribute */

+#if 0

+      draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);

+#endif

+

+      /* map the attrib buffer */

+      map = pipe_buffer_map(pipe, vbuffers[attr].buffer,

+                            PIPE_TRANSFER_READ,

+			    &vb_transfer[attr]);

+      draw_set_mapped_vertex_buffer(draw, attr, map);

+   }

+

+   draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);

+   draw_set_vertex_elements(draw, vp->num_inputs, velements);

+

+   memset(&ibuffer, 0, sizeof(ibuffer));

+   if (ib) {

+      struct gl_buffer_object *bufobj = ib->obj;

+

+      switch (ib->type) {

+      case GL_UNSIGNED_INT:

+         ibuffer.index_size = 4;

+         break;

+      case GL_UNSIGNED_SHORT:

+         ibuffer.index_size = 2;

+         break;

+      case GL_UNSIGNED_BYTE:

+         ibuffer.index_size = 1;

+         break;

+      default:

+         assert(0);

+	 goto out_unref_vertex;

+      }

+

+      if (bufobj && bufobj->Name) {

+         struct st_buffer_object *stobj = st_buffer_object(bufobj);

+

+         pipe_resource_reference(&ibuffer.buffer, stobj->buffer);

+         ibuffer.offset = pointer_to_offset(ib->ptr);

+

+         mapped_indices = pipe_buffer_map(pipe, stobj->buffer,

+                                          PIPE_TRANSFER_READ, &ib_transfer);

+      }

+      else {

+         /* skip setting ibuffer.buffer as the draw module does not use it */

+         mapped_indices = ib->ptr;

+      }

+

+      draw_set_index_buffer(draw, &ibuffer);

+      draw_set_mapped_index_buffer(draw, mapped_indices);

+   }

+

+   /* set the constant buffer */

+   draw_set_mapped_constant_buffer(st->draw, PIPE_SHADER_VERTEX, 0,

+                                   st->state.constants[PIPE_SHADER_VERTEX].ptr,

+                                   st->state.constants[PIPE_SHADER_VERTEX].size);

+

+

+   /* draw here */

+   for (i = 0; i < nr_prims; i++) {

+      draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);

+   }

+

+

+   /*

+    * unmap vertex/index buffers

+    */

+   if (ib) {

+      draw_set_mapped_index_buffer(draw, NULL);

+      draw_set_index_buffer(draw, NULL);

+

+      if (ib_transfer)

+         pipe_buffer_unmap(pipe, ib_transfer);

+      pipe_resource_reference(&ibuffer.buffer, NULL);

+   }

+

+ out_unref_vertex:

+   for (attr = 0; attr < vp->num_inputs; attr++) {

+      pipe_buffer_unmap(pipe, vb_transfer[attr]);

+      draw_set_mapped_vertex_buffer(draw, attr, NULL);

+      pipe_resource_reference(&vbuffers[attr].buffer, NULL);

+   }

+   draw_set_vertex_buffers(draw, 0, NULL);

+}

+

+#endif /* FEATURE_feedback || FEATURE_rastpos */

+

diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index d600edc48..76bd42cf8 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -1,485 +1,485 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright (c) 2008 VMware, Inc.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-#include "main/imports.h"
-#include "main/context.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_screen.h"
-
-#include "st_context.h"
-#include "st_extensions.h"
-
-
-static int _min(int a, int b)
-{
-   return (a < b) ? a : b;
-}
-
-static float _maxf(float a, float b)
-{
-   return (a > b) ? a : b;
-}
-
-static int _clamp(int a, int min, int max)
-{
-   if (a < min)
-      return min;
-   else if (a > max)
-      return max;
-   else
-      return a;
-}
-
-
-/**
- * Query driver to get implementation limits.
- * Note that we have to limit/clamp against Mesa's internal limits too.
- */
-void st_init_limits(struct st_context *st)
-{
-   struct pipe_screen *screen = st->pipe->screen;
-   struct gl_constants *c = &st->ctx->Const;
-   gl_shader_type sh;
-
-   c->MaxTextureLevels
-      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
-            MAX_TEXTURE_LEVELS);
-
-   c->Max3DTextureLevels
-      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
-            MAX_3D_TEXTURE_LEVELS);
-
-   c->MaxCubeTextureLevels
-      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
-            MAX_CUBE_TEXTURE_LEVELS);
-
-   c->MaxTextureRectSize
-      = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
-
-   c->MaxTextureImageUnits
-      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS),
-            MAX_TEXTURE_IMAGE_UNITS);
-
-   c->MaxVertexTextureImageUnits
-      = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS),
-             MAX_VERTEX_TEXTURE_IMAGE_UNITS);
-
-   c->MaxCombinedTextureImageUnits
-      = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS),
-             MAX_COMBINED_TEXTURE_IMAGE_UNITS);
-
-   c->MaxTextureCoordUnits
-      = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS);
-
-   c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits);
-
-   c->MaxDrawBuffers
-      = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
-              1, MAX_DRAW_BUFFERS);
-
-   c->MaxLineWidth
-      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH));
-   c->MaxLineWidthAA
-      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA));
-
-   c->MaxPointSize
-      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH));
-   c->MaxPointSizeAA
-      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA));
-   /* called after _mesa_create_context/_mesa_init_point, fix default user
-    * settable max point size up
-    */
-   st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA);
-   /* these are not queryable. Note that GL basically mandates a 1.0 minimum
-    * for non-aa sizes, but we can go down to 0.0 for aa points.
-    */
-   c->MinPointSize = 1.0f;
-   c->MinPointSizeAA = 0.0f;
-
-   c->MaxTextureMaxAnisotropy
-      = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY));
-
-   c->MaxTextureLodBias
-      = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS);
-
-   c->MaxDrawBuffers
-      = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
-              1, MAX_DRAW_BUFFERS);
-
-   /* Quads always follow GL provoking rules. */
-   c->QuadsFollowProvokingVertexConvention = GL_FALSE;
-
-   for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) {
-      struct gl_shader_compiler_options *options =
-         &st->ctx->ShaderCompilerOptions[sh];
-      struct gl_program_constants *pc;
-
-      switch (sh) {
-      case PIPE_SHADER_FRAGMENT:
-         pc = &c->FragmentProgram;
-         break;
-      case PIPE_SHADER_VERTEX:
-         pc = &c->VertexProgram;
-         break;
-      case PIPE_SHADER_GEOMETRY:
-         pc = &c->GeometryProgram;
-         break;
-      default:
-         assert(0);
-         continue;
-      }
-
-      pc->MaxNativeInstructions    = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
-      pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
-      pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
-      pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
-      pc->MaxNativeAttribs         = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
-      pc->MaxNativeTemps           = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
-      pc->MaxNativeAddressRegs     = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS);
-      pc->MaxNativeParameters      = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS);
-      pc->MaxUniformComponents     = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
-
-      options->EmitNoNoise = TRUE;
-
-      /* TODO: make these more fine-grained if anyone needs it */
-      options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
-      options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
-      options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
-      options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
-
-      options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
-
-      options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh,
-                                        PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
-      options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh,
-                                        PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
-      options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh,
-                                        PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
-      options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,
-                                        PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
-
-      if(options->EmitNoLoops)
-         options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536);
-   }
-
-   /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs
-    * and is set in MaxNativeAttribs. It's always 2 colors + N generic
-    * attributes. The GLSL compiler never uses COLORn for varyings, so we
-    * subtract the 2 colors to get the maximum number of varyings (generic
-    * attributes) supported by a driver. */
-   c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2;
-   c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
-
-   /* XXX we'll need a better query here someday */
-   if (screen->get_param(screen, PIPE_CAP_GLSL)) {
-      c->GLSLVersion = 120;
-   }
-}
-
-
-/**
- * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
- * which GL extensions are supported.
- * Quite a few extensions are always supported because they are standard
- * features or can be built on top of other gallium features.
- * Some fine tuning may still be needed.
- */
-void st_init_extensions(struct st_context *st)
-{
-   struct pipe_screen *screen = st->pipe->screen;
-   struct gl_context *ctx = st->ctx;
-
-   /*
-    * Extensions that are supported by all Gallium drivers:
-    */
-   ctx->Extensions.ARB_copy_buffer = GL_TRUE;
-   ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
-   ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
-   ctx->Extensions.ARB_fragment_program = GL_TRUE;
-   ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
-   ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
-   ctx->Extensions.ARB_multisample = GL_TRUE;
-   ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
-   ctx->Extensions.ARB_texture_compression = GL_TRUE;
-   ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
-   ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
-   ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
-   ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
-   ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
-   ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
-   ctx->Extensions.ARB_vertex_program = GL_TRUE;
-   ctx->Extensions.ARB_window_pos = GL_TRUE;
-
-   ctx->Extensions.EXT_blend_color = GL_TRUE;
-   ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
-   ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
-   ctx->Extensions.EXT_blend_minmax = GL_TRUE;
-   ctx->Extensions.EXT_blend_subtract = GL_TRUE;
-   ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
-   ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
-   ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
-   ctx->Extensions.EXT_fog_coord = GL_TRUE;
-   ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
-   ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
-   ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
-   ctx->Extensions.EXT_point_parameters = GL_TRUE;
-   ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
-   ctx->Extensions.EXT_secondary_color = GL_TRUE;
-   ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
-   ctx->Extensions.EXT_texture_env_add = GL_TRUE;
-   ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
-   ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
-   ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
-   ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
-   if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2)
-	   ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE;
-
-   ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
-
-   ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
-
-   ctx->Extensions.MESA_pack_invert = GL_TRUE;
-
-   ctx->Extensions.NV_blend_square = GL_TRUE;
-   ctx->Extensions.NV_texgen_reflection = GL_TRUE;
-   ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
-   ctx->Extensions.NV_texture_rectangle = GL_TRUE;
-#if 0
-   /* possibly could support the following two */
-   ctx->Extensions.NV_vertex_program = GL_TRUE;
-   ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
-#endif
-
-#if FEATURE_OES_EGL_image
-   ctx->Extensions.OES_EGL_image = GL_TRUE;
-#endif
-#if FEATURE_OES_draw_texture
-   ctx->Extensions.OES_draw_texture = GL_TRUE;
-#endif
-
-   ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
-
-   /*
-    * Extensions that depend on the driver/hardware:
-    */
-   if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) {
-      ctx->Extensions.ARB_draw_buffers = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) {
-      ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_GLSL)) {
-      ctx->Extensions.ARB_fragment_shader = GL_TRUE;
-      ctx->Extensions.ARB_vertex_shader = GL_TRUE;
-      ctx->Extensions.ARB_shader_objects = GL_TRUE;
-      ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
-      ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
-      ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) {
-      ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) {
-      ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) {
-      ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
-      ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
-      ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) {
-      ctx->Extensions.ARB_multitexture = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) {
-      ctx->Extensions.ATI_separate_stencil = GL_TRUE;
-      ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) {
-      ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) {
-      ctx->Extensions.ARB_point_sprite = GL_TRUE;
-      /* GL_NV_point_sprite is not supported by gallium because we don't
-       * support the GL_POINT_SPRITE_R_MODE_NV option.
-       */
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) {
-      ctx->Extensions.ARB_occlusion_query = GL_TRUE;
-      ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
-   }
-   if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) {
-     ctx->Extensions.EXT_timer_query = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) {
-      ctx->Extensions.ARB_depth_texture = GL_TRUE;
-      ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
-      ctx->Extensions.ARB_shadow = GL_TRUE;
-      ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
-      /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/
-   }
-
-   /* GL_EXT_packed_depth_stencil requires both the ability to render to
-    * a depth/stencil buffer and texture from depth/stencil source.
-    */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_DEPTH_STENCIL, 0) &&
-       screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0)) {
-      ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
-   }
-   else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
-                                        PIPE_TEXTURE_2D, 0,
-                                        PIPE_BIND_DEPTH_STENCIL, 0) &&
-            screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
-                                        PIPE_TEXTURE_2D, 0,
-                                        PIPE_BIND_SAMPLER_VIEW, 0)) {
-      ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
-   }
-
-   /* sRGB support */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0) ||
-      screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0)) {
-      ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
-      ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
-      if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_RENDER_TARGET, 0) ||
-          screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_RENDER_TARGET, 0)) {
-         ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE;
-         ctx->Const.sRGBCapable = GL_TRUE;
-      }
-   }
-
-   if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0)) {
-      ctx->Extensions.ARB_texture_rg = GL_TRUE;
-   }
-
-   /* s3tc support */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0) &&
-       (ctx->Mesa_DXTn ||
-        screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
-                                    PIPE_TEXTURE_2D, 0,
-                                    PIPE_BIND_RENDER_TARGET, 0))) {
-      ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
-      ctx->Extensions.S3_s3tc = GL_TRUE;
-   }
-
-   /* ycbcr support */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, 
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0) ||
-       screen->is_format_supported(screen, PIPE_FORMAT_YUYV, 
-                                   PIPE_TEXTURE_2D, 0,
-                                   PIPE_BIND_SAMPLER_VIEW, 0)) {
-      ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
-   }
-
-   /* GL_EXT_texture_array */
-   if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) {
-      ctx->Extensions.EXT_texture_array = GL_TRUE;
-      ctx->Extensions.MESA_texture_array = GL_TRUE;
-   }
-
-   /* GL_ARB_framebuffer_object */
-   if (ctx->Extensions.EXT_packed_depth_stencil) {
-      /* we support always support GL_EXT_framebuffer_blit */
-      ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
-   }
-
-   if (st->pipe->render_condition) {
-      ctx->Extensions.NV_conditional_render = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) {
-      ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) {
-      ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE;
-   }
-
-   /* GL_ARB_half_float_vertex */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT,
-                                   PIPE_BUFFER, 0,
-                                   PIPE_BIND_VERTEX_BUFFER, 0)) {
-      ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
-   }
-
-   if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
-#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */
-      ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
-#endif
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
-      ctx->Extensions.NV_primitive_restart = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) {
-      ctx->Extensions.ARB_depth_clamp = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) {
-      ctx->Extensions.ARB_shader_stencil_export = GL_TRUE;
-   }
-
-   if (screen->get_param(screen, PIPE_CAP_INSTANCED_DRAWING)) {
-      ctx->Extensions.ARB_draw_instanced = GL_TRUE;
-      ctx->Extensions.ARB_instanced_arrays = GL_TRUE;
-   }
-}
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * Copyright (c) 2008 VMware, Inc.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+#include "main/imports.h"

+#include "main/context.h"

+#include "main/macros.h"

+#include "main/mfeatures.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "pipe/p_screen.h"

+

+#include "st_context.h"

+#include "st_extensions.h"

+

+

+static int _min(int a, int b)

+{

+   return (a < b) ? a : b;

+}

+

+static float _maxf(float a, float b)

+{

+   return (a > b) ? a : b;

+}

+

+static int _clamp(int a, int min, int max)

+{

+   if (a < min)

+      return min;

+   else if (a > max)

+      return max;

+   else

+      return a;

+}

+

+

+/**

+ * Query driver to get implementation limits.

+ * Note that we have to limit/clamp against Mesa's internal limits too.

+ */

+void st_init_limits(struct st_context *st)

+{

+   struct pipe_screen *screen = st->pipe->screen;

+   struct gl_constants *c = &st->ctx->Const;

+   gl_shader_type sh;

+

+   c->MaxTextureLevels

+      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),

+            MAX_TEXTURE_LEVELS);

+

+   c->Max3DTextureLevels

+      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),

+            MAX_3D_TEXTURE_LEVELS);

+

+   c->MaxCubeTextureLevels

+      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),

+            MAX_CUBE_TEXTURE_LEVELS);

+

+   c->MaxTextureRectSize

+      = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);

+

+   c->MaxTextureImageUnits

+      = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS),

+            MAX_TEXTURE_IMAGE_UNITS);

+

+   c->MaxVertexTextureImageUnits

+      = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS),

+             MAX_VERTEX_TEXTURE_IMAGE_UNITS);

+

+   c->MaxCombinedTextureImageUnits

+      = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS),

+             MAX_COMBINED_TEXTURE_IMAGE_UNITS);

+

+   c->MaxTextureCoordUnits

+      = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS);

+

+   c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits);

+

+   c->MaxDrawBuffers

+      = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),

+              1, MAX_DRAW_BUFFERS);

+

+   c->MaxLineWidth

+      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH));

+   c->MaxLineWidthAA

+      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA));

+

+   c->MaxPointSize

+      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH));

+   c->MaxPointSizeAA

+      = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA));

+   /* called after _mesa_create_context/_mesa_init_point, fix default user

+    * settable max point size up

+    */

+   st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA);

+   /* these are not queryable. Note that GL basically mandates a 1.0 minimum

+    * for non-aa sizes, but we can go down to 0.0 for aa points.

+    */

+   c->MinPointSize = 1.0f;

+   c->MinPointSizeAA = 0.0f;

+

+   c->MaxTextureMaxAnisotropy

+      = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY));

+

+   c->MaxTextureLodBias

+      = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS);

+

+   c->MaxDrawBuffers

+      = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),

+              1, MAX_DRAW_BUFFERS);

+

+   /* Quads always follow GL provoking rules. */

+   c->QuadsFollowProvokingVertexConvention = GL_FALSE;

+

+   for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) {

+      struct gl_shader_compiler_options *options =

+         &st->ctx->ShaderCompilerOptions[sh];

+      struct gl_program_constants *pc;

+

+      switch (sh) {

+      case PIPE_SHADER_FRAGMENT:

+         pc = &c->FragmentProgram;

+         break;

+      case PIPE_SHADER_VERTEX:

+         pc = &c->VertexProgram;

+         break;

+      case PIPE_SHADER_GEOMETRY:

+         pc = &c->GeometryProgram;

+         break;

+      default:

+         assert(0);

+         continue;

+      }

+

+      pc->MaxNativeInstructions    = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);

+      pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);

+      pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);

+      pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);

+      pc->MaxNativeAttribs         = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);

+      pc->MaxNativeTemps           = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);

+      pc->MaxNativeAddressRegs     = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS);

+      pc->MaxNativeParameters      = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS);

+      pc->MaxUniformComponents     = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);

+

+      options->EmitNoNoise = TRUE;

+

+      /* TODO: make these more fine-grained if anyone needs it */

+      options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);

+      options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);

+      options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);

+      options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);

+

+      options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);

+

+      options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh,

+                                        PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);

+      options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh,

+                                        PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);

+      options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh,

+                                        PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);

+      options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,

+                                        PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);

+

+      if(options->EmitNoLoops)

+         options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536);

+   }

+

+   /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs

+    * and is set in MaxNativeAttribs. It's always 2 colors + N generic

+    * attributes. The GLSL compiler never uses COLORn for varyings, so we

+    * subtract the 2 colors to get the maximum number of varyings (generic

+    * attributes) supported by a driver. */

+   c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2;

+   c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);

+

+   /* XXX we'll need a better query here someday */

+   if (screen->get_param(screen, PIPE_CAP_GLSL)) {

+      c->GLSLVersion = 120;

+   }

+}

+

+

+/**

+ * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine

+ * which GL extensions are supported.

+ * Quite a few extensions are always supported because they are standard

+ * features or can be built on top of other gallium features.

+ * Some fine tuning may still be needed.

+ */

+void st_init_extensions(struct st_context *st)

+{

+   struct pipe_screen *screen = st->pipe->screen;

+   struct gl_context *ctx = st->ctx;

+

+   /*

+    * Extensions that are supported by all Gallium drivers:

+    */

+   ctx->Extensions.ARB_copy_buffer = GL_TRUE;

+   ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;

+   ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;

+   ctx->Extensions.ARB_fragment_program = GL_TRUE;

+   ctx->Extensions.ARB_half_float_pixel = GL_TRUE;

+   ctx->Extensions.ARB_map_buffer_range = GL_TRUE;

+   ctx->Extensions.ARB_multisample = GL_TRUE;

+   ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */

+   ctx->Extensions.ARB_texture_compression = GL_TRUE;

+   ctx->Extensions.ARB_texture_cube_map = GL_TRUE;

+   ctx->Extensions.ARB_texture_env_combine = GL_TRUE;

+   ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;

+   ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;

+   ctx->Extensions.ARB_vertex_array_object = GL_TRUE;

+   ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;

+   ctx->Extensions.ARB_vertex_program = GL_TRUE;

+   ctx->Extensions.ARB_window_pos = GL_TRUE;

+

+   ctx->Extensions.EXT_blend_color = GL_TRUE;

+   ctx->Extensions.EXT_blend_func_separate = GL_TRUE;

+   ctx->Extensions.EXT_blend_logic_op = GL_TRUE;

+   ctx->Extensions.EXT_blend_minmax = GL_TRUE;

+   ctx->Extensions.EXT_blend_subtract = GL_TRUE;

+   ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;

+   ctx->Extensions.EXT_framebuffer_object = GL_TRUE;

+   ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;

+   ctx->Extensions.EXT_fog_coord = GL_TRUE;

+   ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;

+   ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;

+   ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;

+   ctx->Extensions.EXT_point_parameters = GL_TRUE;

+   ctx->Extensions.EXT_provoking_vertex = GL_TRUE;

+   ctx->Extensions.EXT_secondary_color = GL_TRUE;

+   ctx->Extensions.EXT_stencil_wrap = GL_TRUE;

+   ctx->Extensions.EXT_texture_env_add = GL_TRUE;

+   ctx->Extensions.EXT_texture_env_combine = GL_TRUE;

+   ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;

+   ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;

+   ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;

+   if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2)

+	   ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE;

+

+   ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;

+

+   ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;

+

+   ctx->Extensions.MESA_pack_invert = GL_TRUE;

+

+   ctx->Extensions.NV_blend_square = GL_TRUE;

+   ctx->Extensions.NV_texgen_reflection = GL_TRUE;

+   ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;

+   ctx->Extensions.NV_texture_rectangle = GL_TRUE;

+#if 0

+   /* possibly could support the following two */

+   ctx->Extensions.NV_vertex_program = GL_TRUE;

+   ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;

+#endif

+

+#if FEATURE_OES_EGL_image

+   ctx->Extensions.OES_EGL_image = GL_TRUE;

+#endif

+#if FEATURE_OES_draw_texture

+   ctx->Extensions.OES_draw_texture = GL_TRUE;

+#endif

+

+   ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;

+

+   /*

+    * Extensions that depend on the driver/hardware:

+    */

+   if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) {

+      ctx->Extensions.ARB_draw_buffers = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) {

+      ctx->Extensions.EXT_texture_swizzle = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_GLSL)) {

+      ctx->Extensions.ARB_fragment_shader = GL_TRUE;

+      ctx->Extensions.ARB_vertex_shader = GL_TRUE;

+      ctx->Extensions.ARB_shader_objects = GL_TRUE;

+      ctx->Extensions.ARB_shading_language_100 = GL_TRUE;

+      ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;

+      ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) {

+      ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) {

+      ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) {

+      ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;

+      ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {

+      ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) {

+      ctx->Extensions.ARB_multitexture = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) {

+      ctx->Extensions.ATI_separate_stencil = GL_TRUE;

+      ctx->Extensions.EXT_stencil_two_side = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) {

+      ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) {

+      ctx->Extensions.ARB_point_sprite = GL_TRUE;

+      /* GL_NV_point_sprite is not supported by gallium because we don't

+       * support the GL_POINT_SPRITE_R_MODE_NV option.

+       */

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) {

+      ctx->Extensions.ARB_occlusion_query = GL_TRUE;

+      ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;

+   }

+   if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) {

+     ctx->Extensions.EXT_timer_query = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) {

+      ctx->Extensions.ARB_depth_texture = GL_TRUE;

+      ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;

+      ctx->Extensions.ARB_shadow = GL_TRUE;

+      ctx->Extensions.EXT_shadow_funcs = GL_TRUE;

+      /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/

+   }

+

+   /* GL_EXT_packed_depth_stencil requires both the ability to render to

+    * a depth/stencil buffer and texture from depth/stencil source.

+    */

+   if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_DEPTH_STENCIL, 0) &&

+       screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0)) {

+      ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;

+   }

+   else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,

+                                        PIPE_TEXTURE_2D, 0,

+                                        PIPE_BIND_DEPTH_STENCIL, 0) &&

+            screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,

+                                        PIPE_TEXTURE_2D, 0,

+                                        PIPE_BIND_SAMPLER_VIEW, 0)) {

+      ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;

+   }

+

+   /* sRGB support */

+   if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0) ||

+      screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0)) {

+      ctx->Extensions.EXT_texture_sRGB = GL_TRUE;

+      ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;

+      if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_RENDER_TARGET, 0) ||

+          screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_RENDER_TARGET, 0)) {

+         ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE;

+         ctx->Const.sRGBCapable = GL_TRUE;

+      }

+   }

+

+   if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0)) {

+      ctx->Extensions.ARB_texture_rg = GL_TRUE;

+   }

+

+   /* s3tc support */

+   if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0) &&

+       (ctx->Mesa_DXTn ||

+        screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,

+                                    PIPE_TEXTURE_2D, 0,

+                                    PIPE_BIND_RENDER_TARGET, 0))) {

+      ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;

+      ctx->Extensions.S3_s3tc = GL_TRUE;

+   }

+

+   /* ycbcr support */

+   if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, 

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0) ||

+       screen->is_format_supported(screen, PIPE_FORMAT_YUYV, 

+                                   PIPE_TEXTURE_2D, 0,

+                                   PIPE_BIND_SAMPLER_VIEW, 0)) {

+      ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;

+   }

+

+   /* GL_EXT_texture_array */

+   if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) {

+      ctx->Extensions.EXT_texture_array = GL_TRUE;

+      ctx->Extensions.MESA_texture_array = GL_TRUE;

+   }

+

+   /* GL_ARB_framebuffer_object */

+   if (ctx->Extensions.EXT_packed_depth_stencil) {

+      /* we support always support GL_EXT_framebuffer_blit */

+      ctx->Extensions.ARB_framebuffer_object = GL_TRUE;

+   }

+

+   if (st->pipe->render_condition) {

+      ctx->Extensions.NV_conditional_render = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) {

+      ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) {

+      ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE;

+   }

+

+   /* GL_ARB_half_float_vertex */

+   if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT,

+                                   PIPE_BUFFER, 0,

+                                   PIPE_BIND_VERTEX_BUFFER, 0)) {

+      ctx->Extensions.ARB_half_float_vertex = GL_TRUE;

+   }

+

+   if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {

+#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */

+      ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;

+#endif

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {

+      ctx->Extensions.NV_primitive_restart = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) {

+      ctx->Extensions.ARB_depth_clamp = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) {

+      ctx->Extensions.ARB_shader_stencil_export = GL_TRUE;

+   }

+

+   if (screen->get_param(screen, PIPE_CAP_INSTANCED_DRAWING)) {

+      ctx->Extensions.ARB_draw_instanced = GL_TRUE;

+      ctx->Extensions.ARB_instanced_arrays = GL_TRUE;

+   }

+}

diff --git a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c
index 18eb3be68..5fcd806e0 100644
--- a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c
+++ b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c
@@ -1,422 +1,422 @@
-/**************************************************************************
- * 
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-
-#include "main/imports.h"
-#include "main/mipmap.h"
-#include "main/teximage.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_gen_mipmap.h"
-
-#include "st_debug.h"
-#include "st_context.h"
-#include "st_texture.h"
-#include "st_gen_mipmap.h"
-#include "st_cb_texture.h"
-
-
-/**
- * one-time init for generate mipmap
- * XXX Note: there may be other times we need no-op/simple state like this.
- * In that case, some code refactoring would be good.
- */
-void
-st_init_generate_mipmap(struct st_context *st)
-{
-   st->gen_mipmap = util_create_gen_mipmap(st->pipe, st->cso_context);
-}
-
-
-void
-st_destroy_generate_mipmap(struct st_context *st)
-{
-   util_destroy_gen_mipmap(st->gen_mipmap);
-   st->gen_mipmap = NULL;
-}
-
-
-/**
- * Generate mipmap levels using hardware rendering.
- * \return TRUE if successful, FALSE if not possible
- */
-static boolean
-st_render_mipmap(struct st_context *st,
-                 GLenum target,
-                 struct st_texture_object *stObj,
-                 uint baseLevel, uint lastLevel)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_screen *screen = pipe->screen;
-   struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj, pipe);
-   const uint face = _mesa_tex_target_to_face(target);
-
-   assert(psv->texture == stObj->pt);
-#if 0
-   assert(target != GL_TEXTURE_3D); /* implemented but untested */
-#endif
-
-   /* check if we can render in the texture's format */
-   /* XXX should probably kill this and always use util_gen_mipmap
-      since this implements a sw fallback as well */
-   if (!screen->is_format_supported(screen, psv->format, psv->texture->target,
-                                    0, PIPE_BIND_RENDER_TARGET, 0)) {
-      return FALSE;
-   }
-
-   util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel,
-                   PIPE_TEX_FILTER_LINEAR);
-
-   return TRUE;
-}
-
-
-/**
- * Helper function to decompress an image.  The result is a 32-bpp RGBA
- * image with stride==width.
- */
-static void
-decompress_image(enum pipe_format format,
-                 const uint8_t *src, uint8_t *dst,
-                 unsigned width, unsigned height, unsigned src_stride)
-{
-   const struct util_format_description *desc = util_format_description(format);
-   const uint bw = util_format_get_blockwidth(format);
-   const uint bh = util_format_get_blockheight(format);
-   const uint dst_stride = 4 * MAX2(width, bw);
-
-   desc->unpack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);
-
-   if (width < bw || height < bh) {
-      /* We're decompressing an image smaller than the compression
-       * block size.  We don't want garbage pixel values in the region
-       * outside (width x height) so replicate pixels from the (width
-       * x height) region to fill out the (bw x bh) block size.
-       */
-      uint x, y;
-      for (y = 0; y < bh; y++) {
-         for (x = 0; x < bw; x++) {
-            if (x >= width || y >= height) {
-               uint p = (y * bw + x) * 4;
-               dst[p + 0] = dst[0];
-               dst[p + 1] = dst[1];
-               dst[p + 2] = dst[2];
-               dst[p + 3] = dst[3];
-            }
-         }
-      }
-   }
-}
-
-
-/**
- * Helper function to compress an image.  The source is a 32-bpp RGBA image
- * with stride==width.
- */
-static void
-compress_image(enum pipe_format format,
-               const uint8_t *src, uint8_t *dst,
-               unsigned width, unsigned height, unsigned dst_stride)
-{
-   const struct util_format_description *desc = util_format_description(format);
-   const uint src_stride = 4 * width;
-
-   desc->pack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);
-}
-
-
-/**
- * Software fallback for generate mipmap levels.
- */
-static void
-fallback_generate_mipmap(struct gl_context *ctx, GLenum target,
-                         struct gl_texture_object *texObj)
-{
-   struct pipe_context *pipe = st_context(ctx)->pipe;
-   struct pipe_resource *pt = st_get_texobj_resource(texObj);
-   const uint baseLevel = texObj->BaseLevel;
-   const uint lastLevel = pt->last_level;
-   const uint face = _mesa_tex_target_to_face(target);
-   uint dstLevel;
-   GLenum datatype;
-   GLuint comps;
-   GLboolean compressed;
-
-   if (ST_DEBUG & DEBUG_FALLBACK)
-      debug_printf("%s: fallback processing\n", __FUNCTION__);
-
-   assert(target != GL_TEXTURE_3D); /* not done yet */
-
-   compressed =
-      _mesa_is_format_compressed(texObj->Image[face][baseLevel]->TexFormat);
-
-   if (compressed) {
-      datatype = GL_UNSIGNED_BYTE;
-      comps = 4;
-   }
-   else {
-      _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat,
-                                     &datatype, &comps);
-      assert(comps > 0 && "bad texture format in fallback_generate_mipmap()");
-   }
-
-   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
-      const uint srcLevel = dstLevel - 1;
-      const uint srcWidth = u_minify(pt->width0, srcLevel);
-      const uint srcHeight = u_minify(pt->height0, srcLevel);
-      const uint srcDepth = u_minify(pt->depth0, srcLevel);
-      const uint dstWidth = u_minify(pt->width0, dstLevel);
-      const uint dstHeight = u_minify(pt->height0, dstLevel);
-      const uint dstDepth = u_minify(pt->depth0, dstLevel);
-      struct pipe_transfer *srcTrans, *dstTrans;
-      const ubyte *srcData;
-      ubyte *dstData;
-      int srcStride, dstStride;
-
-      srcTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, srcLevel,
-                                   face,
-                                   PIPE_TRANSFER_READ, 0, 0,
-                                   srcWidth, srcHeight);
-
-      dstTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, dstLevel,
-                                   face,
-                                   PIPE_TRANSFER_WRITE, 0, 0,
-                                   dstWidth, dstHeight);
-
-      srcData = (ubyte *) pipe_transfer_map(pipe, srcTrans);
-      dstData = (ubyte *) pipe_transfer_map(pipe, dstTrans);
-
-      srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->resource->format);
-      dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->resource->format);
-
-     /* this cannot work correctly for 3d since it does
-        not respect layerStride. */
-      if (compressed) {
-         const enum pipe_format format = pt->format;
-         const uint bw = util_format_get_blockwidth(format);
-         const uint bh = util_format_get_blockheight(format);
-         const uint srcWidth2 = align(srcWidth, bw);
-         const uint srcHeight2 = align(srcHeight, bh);
-         const uint dstWidth2 = align(dstWidth, bw);
-         const uint dstHeight2 = align(dstHeight, bh);
-         uint8_t *srcTemp, *dstTemp;
-
-         assert(comps == 4);
-
-         srcTemp = malloc(srcWidth2 * srcHeight2 * comps + 000);
-         dstTemp = malloc(dstWidth2 * dstHeight2 * comps + 000);
-
-         /* decompress the src image: srcData -> srcTemp */
-         decompress_image(format, srcData, srcTemp, srcWidth, srcHeight, srcTrans->stride);
-
-         _mesa_generate_mipmap_level(target, datatype, comps,
-                                     0 /*border*/,
-                                     srcWidth2, srcHeight2, srcDepth,
-                                     srcTemp,
-                                     srcWidth2, /* stride in texels */
-                                     dstWidth2, dstHeight2, dstDepth,
-                                     dstTemp,
-                                     dstWidth2); /* stride in texels */
-
-         /* compress the new image: dstTemp -> dstData */
-         compress_image(format, dstTemp, dstData, dstWidth, dstHeight, dstTrans->stride);
-
-         free(srcTemp);
-         free(dstTemp);
-      }
-      else {
-         _mesa_generate_mipmap_level(target, datatype, comps,
-                                     0 /*border*/,
-                                     srcWidth, srcHeight, srcDepth,
-                                     srcData,
-                                     srcStride, /* stride in texels */
-                                     dstWidth, dstHeight, dstDepth,
-                                     dstData,
-                                     dstStride); /* stride in texels */
-      }
-
-      pipe_transfer_unmap(pipe, srcTrans);
-      pipe_transfer_unmap(pipe, dstTrans);
-
-      pipe->transfer_destroy(pipe, srcTrans);
-      pipe->transfer_destroy(pipe, dstTrans);
-   }
-}
-
-
-/**
- * Compute the expected number of mipmap levels in the texture given
- * the width/height/depth of the base image and the GL_TEXTURE_BASE_LEVEL/
- * GL_TEXTURE_MAX_LEVEL settings.  This will tell us how many mipmap
- * levels should be generated.
- */
-static GLuint
-compute_num_levels(struct gl_context *ctx,
-                   struct gl_texture_object *texObj,
-                   GLenum target)
-{
-   if (target == GL_TEXTURE_RECTANGLE_ARB) {
-      return 1;
-   }
-   else {
-      const struct gl_texture_image *baseImage = 
-         _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel);
-      GLuint size, numLevels;
-
-      size = MAX2(baseImage->Width2, baseImage->Height2);
-      size = MAX2(size, baseImage->Depth2);
-
-      numLevels = texObj->BaseLevel;
-
-      while (size > 0) {
-         numLevels++;
-         size >>= 1;
-      }
-
-      numLevels = MIN2(numLevels, texObj->MaxLevel + 1);
-
-      assert(numLevels >= 1);
-
-      return numLevels;
-   }
-}
-
-
-/**
- * Called via ctx->Driver.GenerateMipmap().
- */
-void
-st_generate_mipmap(struct gl_context *ctx, GLenum target,
-                   struct gl_texture_object *texObj)
-{
-   struct st_context *st = st_context(ctx);
-   struct st_texture_object *stObj = st_texture_object(texObj);
-   struct pipe_resource *pt = st_get_texobj_resource(texObj);
-   const uint baseLevel = texObj->BaseLevel;
-   uint lastLevel;
-   uint dstLevel;
-
-   if (!pt)
-      return;
-
-   /* not sure if this ultimately actually should work,
-      but we're not supporting multisampled textures yet. */
-   assert(pt->nr_samples < 2);
-
-   /* find expected last mipmap level to generate*/
-   lastLevel = compute_num_levels(ctx, texObj, target) - 1;
-
-   if (lastLevel == 0)
-      return;
-
-   if (pt->last_level < lastLevel) {
-      /* The current gallium texture doesn't have space for all the
-       * mipmap levels we need to generate.  So allocate a new texture.
-       */
-      struct pipe_resource *oldTex = stObj->pt;
-
-      /* create new texture with space for more levels */
-      stObj->pt = st_texture_create(st,
-                                    oldTex->target,
-                                    oldTex->format,
-                                    lastLevel,
-                                    oldTex->width0,
-                                    oldTex->height0,
-                                    oldTex->depth0,
-                                    oldTex->array_size,
-                                    oldTex->bind);
-
-      /* The texture isn't in a "complete" state yet so set the expected
-       * lastLevel here, since it won't get done in st_finalize_texture().
-       */
-      stObj->lastLevel = lastLevel;
-
-      /* This will copy the old texture's base image into the new texture
-       * which we just allocated.
-       */
-      st_finalize_texture(ctx, st->pipe, texObj);
-
-      /* release the old tex (will likely be freed too) */
-      pipe_resource_reference(&oldTex, NULL);
-      pipe_sampler_view_reference(&stObj->sampler_view, NULL);
-
-      pt = stObj->pt;
-   }
-   else {
-      /* Make sure that the base texture image data is present in the
-       * texture buffer.
-       */
-      st_finalize_texture(ctx, st->pipe, texObj);
-   }
-
-   assert(pt->last_level >= lastLevel);
-
-   /* Try to generate the mipmap by rendering/texturing.  If that fails,
-    * use the software fallback.
-    */
-   if (!st_render_mipmap(st, target, stObj, baseLevel, lastLevel)) {
-      /* since the util code actually also has a fallback, should
-         probably make it never fail and kill this */
-      fallback_generate_mipmap(ctx, target, texObj);
-   }
-
-   /* Fill in the Mesa gl_texture_image fields */
-   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
-      const uint srcLevel = dstLevel - 1;
-      const struct gl_texture_image *srcImage
-         = _mesa_get_tex_image(ctx, texObj, target, srcLevel);
-      struct gl_texture_image *dstImage;
-      struct st_texture_image *stImage;
-      uint dstWidth = u_minify(pt->width0, dstLevel);
-      uint dstHeight = u_minify(pt->height0, dstLevel);
-      uint dstDepth = u_minify(pt->depth0, dstLevel); 
-      uint border = srcImage->Border;
-
-      dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel);
-      if (!dstImage) {
-         _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
-         return;
-      }
-
-      /* Free old image data */
-      if (dstImage->Data)
-         ctx->Driver.FreeTexImageData(ctx, dstImage);
-
-      /* initialize new image */
-      _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight,
-                                 dstDepth, border, srcImage->InternalFormat,
-                                 srcImage->TexFormat);
-
-      stImage = st_texture_image(dstImage);
-      stImage->level = dstLevel;
-
-      pipe_resource_reference(&stImage->pt, pt);
-   }
-}
+/**************************************************************************

+ * 

+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+

+#include "main/imports.h"

+#include "main/mipmap.h"

+#include "main/teximage.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "util/u_inlines.h"

+#include "util/u_format.h"

+#include "util/u_gen_mipmap.h"

+

+#include "st_debug.h"

+#include "st_context.h"

+#include "st_texture.h"

+#include "st_gen_mipmap.h"

+#include "st_cb_texture.h"

+

+

+/**

+ * one-time init for generate mipmap

+ * XXX Note: there may be other times we need no-op/simple state like this.

+ * In that case, some code refactoring would be good.

+ */

+void

+st_init_generate_mipmap(struct st_context *st)

+{

+   st->gen_mipmap = util_create_gen_mipmap(st->pipe, st->cso_context);

+}

+

+

+void

+st_destroy_generate_mipmap(struct st_context *st)

+{

+   util_destroy_gen_mipmap(st->gen_mipmap);

+   st->gen_mipmap = NULL;

+}

+

+

+/**

+ * Generate mipmap levels using hardware rendering.

+ * \return TRUE if successful, FALSE if not possible

+ */

+static boolean

+st_render_mipmap(struct st_context *st,

+                 GLenum target,

+                 struct st_texture_object *stObj,

+                 uint baseLevel, uint lastLevel)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct pipe_screen *screen = pipe->screen;

+   struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj, pipe);

+   const uint face = _mesa_tex_target_to_face(target);

+

+   assert(psv->texture == stObj->pt);

+#if 0

+   assert(target != GL_TEXTURE_3D); /* implemented but untested */

+#endif

+

+   /* check if we can render in the texture's format */

+   /* XXX should probably kill this and always use util_gen_mipmap

+      since this implements a sw fallback as well */

+   if (!screen->is_format_supported(screen, psv->format, psv->texture->target,

+                                    0, PIPE_BIND_RENDER_TARGET, 0)) {

+      return FALSE;

+   }

+

+   util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel,

+                   PIPE_TEX_FILTER_LINEAR);

+

+   return TRUE;

+}

+

+

+/**

+ * Helper function to decompress an image.  The result is a 32-bpp RGBA

+ * image with stride==width.

+ */

+static void

+decompress_image(enum pipe_format format,

+                 const uint8_t *src, uint8_t *dst,

+                 unsigned width, unsigned height, unsigned src_stride)

+{

+   const struct util_format_description *desc = util_format_description(format);

+   const uint bw = util_format_get_blockwidth(format);

+   const uint bh = util_format_get_blockheight(format);

+   const uint dst_stride = 4 * MAX2(width, bw);

+

+   desc->unpack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);

+

+   if (width < bw || height < bh) {

+      /* We're decompressing an image smaller than the compression

+       * block size.  We don't want garbage pixel values in the region

+       * outside (width x height) so replicate pixels from the (width

+       * x height) region to fill out the (bw x bh) block size.

+       */

+      uint x, y;

+      for (y = 0; y < bh; y++) {

+         for (x = 0; x < bw; x++) {

+            if (x >= width || y >= height) {

+               uint p = (y * bw + x) * 4;

+               dst[p + 0] = dst[0];

+               dst[p + 1] = dst[1];

+               dst[p + 2] = dst[2];

+               dst[p + 3] = dst[3];

+            }

+         }

+      }

+   }

+}

+

+

+/**

+ * Helper function to compress an image.  The source is a 32-bpp RGBA image

+ * with stride==width.

+ */

+static void

+compress_image(enum pipe_format format,

+               const uint8_t *src, uint8_t *dst,

+               unsigned width, unsigned height, unsigned dst_stride)

+{

+   const struct util_format_description *desc = util_format_description(format);

+   const uint src_stride = 4 * width;

+

+   desc->pack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);

+}

+

+

+/**

+ * Software fallback for generate mipmap levels.

+ */

+static void

+fallback_generate_mipmap(struct gl_context *ctx, GLenum target,

+                         struct gl_texture_object *texObj)

+{

+   struct pipe_context *pipe = st_context(ctx)->pipe;

+   struct pipe_resource *pt = st_get_texobj_resource(texObj);

+   const uint baseLevel = texObj->BaseLevel;

+   const uint lastLevel = pt->last_level;

+   const uint face = _mesa_tex_target_to_face(target);

+   uint dstLevel;

+   GLenum datatype;

+   GLuint comps;

+   GLboolean compressed;

+

+   if (ST_DEBUG & DEBUG_FALLBACK)

+      debug_printf("%s: fallback processing\n", __FUNCTION__);

+

+   assert(target != GL_TEXTURE_3D); /* not done yet */

+

+   compressed =

+      _mesa_is_format_compressed(texObj->Image[face][baseLevel]->TexFormat);

+

+   if (compressed) {

+      datatype = GL_UNSIGNED_BYTE;

+      comps = 4;

+   }

+   else {

+      _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat,

+                                     &datatype, &comps);

+      assert(comps > 0 && "bad texture format in fallback_generate_mipmap()");

+   }

+

+   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {

+      const uint srcLevel = dstLevel - 1;

+      const uint srcWidth = u_minify(pt->width0, srcLevel);

+      const uint srcHeight = u_minify(pt->height0, srcLevel);

+      const uint srcDepth = u_minify(pt->depth0, srcLevel);

+      const uint dstWidth = u_minify(pt->width0, dstLevel);

+      const uint dstHeight = u_minify(pt->height0, dstLevel);

+      const uint dstDepth = u_minify(pt->depth0, dstLevel);

+      struct pipe_transfer *srcTrans, *dstTrans;

+      const ubyte *srcData;

+      ubyte *dstData;

+      int srcStride, dstStride;

+

+      srcTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, srcLevel,

+                                   face,

+                                   PIPE_TRANSFER_READ, 0, 0,

+                                   srcWidth, srcHeight);

+

+      dstTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, dstLevel,

+                                   face,

+                                   PIPE_TRANSFER_WRITE, 0, 0,

+                                   dstWidth, dstHeight);

+

+      srcData = (ubyte *) pipe_transfer_map(pipe, srcTrans);

+      dstData = (ubyte *) pipe_transfer_map(pipe, dstTrans);

+

+      srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->resource->format);

+      dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->resource->format);

+

+     /* this cannot work correctly for 3d since it does

+        not respect layerStride. */

+      if (compressed) {

+         const enum pipe_format format = pt->format;

+         const uint bw = util_format_get_blockwidth(format);

+         const uint bh = util_format_get_blockheight(format);

+         const uint srcWidth2 = align(srcWidth, bw);

+         const uint srcHeight2 = align(srcHeight, bh);

+         const uint dstWidth2 = align(dstWidth, bw);

+         const uint dstHeight2 = align(dstHeight, bh);

+         uint8_t *srcTemp, *dstTemp;

+

+         assert(comps == 4);

+

+         srcTemp = malloc(srcWidth2 * srcHeight2 * comps + 000);

+         dstTemp = malloc(dstWidth2 * dstHeight2 * comps + 000);

+

+         /* decompress the src image: srcData -> srcTemp */

+         decompress_image(format, srcData, srcTemp, srcWidth, srcHeight, srcTrans->stride);

+

+         _mesa_generate_mipmap_level(target, datatype, comps,

+                                     0 /*border*/,

+                                     srcWidth2, srcHeight2, srcDepth,

+                                     srcTemp,

+                                     srcWidth2, /* stride in texels */

+                                     dstWidth2, dstHeight2, dstDepth,

+                                     dstTemp,

+                                     dstWidth2); /* stride in texels */

+

+         /* compress the new image: dstTemp -> dstData */

+         compress_image(format, dstTemp, dstData, dstWidth, dstHeight, dstTrans->stride);

+

+         free(srcTemp);

+         free(dstTemp);

+      }

+      else {

+         _mesa_generate_mipmap_level(target, datatype, comps,

+                                     0 /*border*/,

+                                     srcWidth, srcHeight, srcDepth,

+                                     srcData,

+                                     srcStride, /* stride in texels */

+                                     dstWidth, dstHeight, dstDepth,

+                                     dstData,

+                                     dstStride); /* stride in texels */

+      }

+

+      pipe_transfer_unmap(pipe, srcTrans);

+      pipe_transfer_unmap(pipe, dstTrans);

+

+      pipe->transfer_destroy(pipe, srcTrans);

+      pipe->transfer_destroy(pipe, dstTrans);

+   }

+}

+

+

+/**

+ * Compute the expected number of mipmap levels in the texture given

+ * the width/height/depth of the base image and the GL_TEXTURE_BASE_LEVEL/

+ * GL_TEXTURE_MAX_LEVEL settings.  This will tell us how many mipmap

+ * levels should be generated.

+ */

+static GLuint

+compute_num_levels(struct gl_context *ctx,

+                   struct gl_texture_object *texObj,

+                   GLenum target)

+{

+   if (target == GL_TEXTURE_RECTANGLE_ARB) {

+      return 1;

+   }

+   else {

+      const struct gl_texture_image *baseImage = 

+         _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel);

+      GLuint size, numLevels;

+

+      size = MAX2(baseImage->Width2, baseImage->Height2);

+      size = MAX2(size, baseImage->Depth2);

+

+      numLevels = texObj->BaseLevel;

+

+      while (size > 0) {

+         numLevels++;

+         size >>= 1;

+      }

+

+      numLevels = MIN2(numLevels, texObj->MaxLevel + 1);

+

+      assert(numLevels >= 1);

+

+      return numLevels;

+   }

+}

+

+

+/**

+ * Called via ctx->Driver.GenerateMipmap().

+ */

+void

+st_generate_mipmap(struct gl_context *ctx, GLenum target,

+                   struct gl_texture_object *texObj)

+{

+   struct st_context *st = st_context(ctx);

+   struct st_texture_object *stObj = st_texture_object(texObj);

+   struct pipe_resource *pt = st_get_texobj_resource(texObj);

+   const uint baseLevel = texObj->BaseLevel;

+   uint lastLevel;

+   uint dstLevel;

+

+   if (!pt)

+      return;

+

+   /* not sure if this ultimately actually should work,

+      but we're not supporting multisampled textures yet. */

+   assert(pt->nr_samples < 2);

+

+   /* find expected last mipmap level to generate*/

+   lastLevel = compute_num_levels(ctx, texObj, target) - 1;

+

+   if (lastLevel == 0)

+      return;

+

+   if (pt->last_level < lastLevel) {

+      /* The current gallium texture doesn't have space for all the

+       * mipmap levels we need to generate.  So allocate a new texture.

+       */

+      struct pipe_resource *oldTex = stObj->pt;

+

+      /* create new texture with space for more levels */

+      stObj->pt = st_texture_create(st,

+                                    oldTex->target,

+                                    oldTex->format,

+                                    lastLevel,

+                                    oldTex->width0,

+                                    oldTex->height0,

+                                    oldTex->depth0,

+                                    oldTex->array_size,

+                                    oldTex->bind);

+

+      /* The texture isn't in a "complete" state yet so set the expected

+       * lastLevel here, since it won't get done in st_finalize_texture().

+       */

+      stObj->lastLevel = lastLevel;

+

+      /* This will copy the old texture's base image into the new texture

+       * which we just allocated.

+       */

+      st_finalize_texture(ctx, st->pipe, texObj);

+

+      /* release the old tex (will likely be freed too) */

+      pipe_resource_reference(&oldTex, NULL);

+      pipe_sampler_view_reference(&stObj->sampler_view, NULL);

+

+      pt = stObj->pt;

+   }

+   else {

+      /* Make sure that the base texture image data is present in the

+       * texture buffer.

+       */

+      st_finalize_texture(ctx, st->pipe, texObj);

+   }

+

+   assert(pt->last_level >= lastLevel);

+

+   /* Try to generate the mipmap by rendering/texturing.  If that fails,

+    * use the software fallback.

+    */

+   if (!st_render_mipmap(st, target, stObj, baseLevel, lastLevel)) {

+      /* since the util code actually also has a fallback, should

+         probably make it never fail and kill this */

+      fallback_generate_mipmap(ctx, target, texObj);

+   }

+

+   /* Fill in the Mesa gl_texture_image fields */

+   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {

+      const uint srcLevel = dstLevel - 1;

+      const struct gl_texture_image *srcImage

+         = _mesa_get_tex_image(ctx, texObj, target, srcLevel);

+      struct gl_texture_image *dstImage;

+      struct st_texture_image *stImage;

+      uint dstWidth = u_minify(pt->width0, dstLevel);

+      uint dstHeight = u_minify(pt->height0, dstLevel);

+      uint dstDepth = u_minify(pt->depth0, dstLevel); 

+      uint border = srcImage->Border;

+

+      dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel);

+      if (!dstImage) {

+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");

+         return;

+      }

+

+      /* Free old image data */

+      if (dstImage->Data)

+         ctx->Driver.FreeTexImageData(ctx, dstImage);

+

+      /* initialize new image */

+      _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight,

+                                 dstDepth, border, srcImage->InternalFormat,

+                                 srcImage->TexFormat);

+

+      stImage = st_texture_image(dstImage);

+      stImage->level = dstLevel;

+

+      pipe_resource_reference(&stImage->pt, pt);

+   }

+}

diff --git a/mesalib/src/mesa/state_tracker/st_program.c b/mesalib/src/mesa/state_tracker/st_program.c
index fc1dfb3ef..e5c26c563 100644
--- a/mesalib/src/mesa/state_tracker/st_program.c
+++ b/mesalib/src/mesa/state_tracker/st_program.c
@@ -1,1165 +1,1165 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
- /*
-  * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
-  *   Brian Paul
-  */
-
-
-#include "main/imports.h"
-#include "main/hash.h"
-#include "main/mfeatures.h"
-#include "main/mtypes.h"
-#include "program/prog_parameter.h"
-#include "program/prog_print.h"
-#include "program/programopt.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_shader_tokens.h"
-#include "draw/draw_context.h"
-#include "tgsi/tgsi_dump.h"
-#include "tgsi/tgsi_ureg.h"
-
-#include "st_debug.h"
-#include "st_cb_bitmap.h"
-#include "st_cb_drawpixels.h"
-#include "st_context.h"
-#include "st_program.h"
-#include "st_mesa_to_tgsi.h"
-#include "cso_cache/cso_context.h"
-
-
-
-/**
- * Delete a vertex program variant.  Note the caller must unlink
- * the variant from the linked list.
- */
-static void
-delete_vp_variant(struct st_context *st, struct st_vp_variant *vpv)
-{
-   if (vpv->driver_shader) 
-      cso_delete_vertex_shader(st->cso_context, vpv->driver_shader);
-      
-#if FEATURE_feedback || FEATURE_rastpos
-   if (vpv->draw_shader)
-      draw_delete_vertex_shader( st->draw, vpv->draw_shader );
-#endif
-      
-   if (vpv->tgsi.tokens)
-      st_free_tokens(vpv->tgsi.tokens);
-      
-   FREE( vpv );
-}
-
-
-
-/**
- * Clean out any old compilations:
- */
-void
-st_release_vp_variants( struct st_context *st,
-                        struct st_vertex_program *stvp )
-{
-   struct st_vp_variant *vpv;
-
-   for (vpv = stvp->variants; vpv; ) {
-      struct st_vp_variant *next = vpv->next;
-      delete_vp_variant(st, vpv);
-      vpv = next;
-   }
-
-   stvp->variants = NULL;
-}
-
-
-
-/**
- * Delete a fragment program variant.  Note the caller must unlink
- * the variant from the linked list.
- */
-static void
-delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv)
-{
-   if (fpv->driver_shader) 
-      cso_delete_fragment_shader(st->cso_context, fpv->driver_shader);
-   if (fpv->parameters)
-      _mesa_free_parameter_list(fpv->parameters);
-      
-   FREE(fpv);
-}
-
-
-/**
- * Free all variants of a fragment program.
- */
-void
-st_release_fp_variants(struct st_context *st, struct st_fragment_program *stfp)
-{
-   struct st_fp_variant *fpv;
-
-   for (fpv = stfp->variants; fpv; ) {
-      struct st_fp_variant *next = fpv->next;
-      delete_fp_variant(st, fpv);
-      fpv = next;
-   }
-
-   stfp->variants = NULL;
-}
-
-
-/**
- * Delete a geometry program variant.  Note the caller must unlink
- * the variant from the linked list.
- */
-static void
-delete_gp_variant(struct st_context *st, struct st_gp_variant *gpv)
-{
-   if (gpv->driver_shader) 
-      cso_delete_geometry_shader(st->cso_context, gpv->driver_shader);
-      
-   FREE(gpv);
-}
-
-
-/**
- * Free all variants of a geometry program.
- */
-void
-st_release_gp_variants(struct st_context *st, struct st_geometry_program *stgp)
-{
-   struct st_gp_variant *gpv;
-
-   for (gpv = stgp->variants; gpv; ) {
-      struct st_gp_variant *next = gpv->next;
-      delete_gp_variant(st, gpv);
-      gpv = next;
-   }
-
-   stgp->variants = NULL;
-}
-
-
-
-
-/**
- * Translate a Mesa vertex shader into a TGSI shader.
- * \param outputMapping  to map vertex program output registers (VERT_RESULT_x)
- *       to TGSI output slots
- * \param tokensOut  destination for TGSI tokens
- * \return  pointer to cached pipe_shader object.
- */
-static void
-st_prepare_vertex_program(struct st_context *st,
-                            struct st_vertex_program *stvp)
-{
-   GLuint attr;
-
-   stvp->num_inputs = 0;
-   stvp->num_outputs = 0;
-
-   if (stvp->Base.IsPositionInvariant)
-      _mesa_insert_mvp_code(st->ctx, &stvp->Base);
-
-   assert(stvp->Base.Base.NumInstructions > 1);
-
-   /*
-    * Determine number of inputs, the mappings between VERT_ATTRIB_x
-    * and TGSI generic input indexes, plus input attrib semantic info.
-    */
-   for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
-      if (stvp->Base.Base.InputsRead & (1 << attr)) {
-         stvp->input_to_index[attr] = stvp->num_inputs;
-         stvp->index_to_input[stvp->num_inputs] = attr;
-         stvp->num_inputs++;
-      }
-   }
-   /* bit of a hack, presetup potentially unused edgeflag input */
-   stvp->input_to_index[VERT_ATTRIB_EDGEFLAG] = stvp->num_inputs;
-   stvp->index_to_input[stvp->num_inputs] = VERT_ATTRIB_EDGEFLAG;
-
-   /* Compute mapping of vertex program outputs to slots.
-    */
-   for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
-      if ((stvp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) == 0) {
-         stvp->result_to_output[attr] = ~0;
-      }
-      else {
-         unsigned slot = stvp->num_outputs++;
-
-         stvp->result_to_output[attr] = slot;
-
-         switch (attr) {
-         case VERT_RESULT_HPOS:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
-            stvp->output_semantic_index[slot] = 0;
-            break;
-         case VERT_RESULT_COL0:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-            stvp->output_semantic_index[slot] = 0;
-            break;
-         case VERT_RESULT_COL1:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-            stvp->output_semantic_index[slot] = 1;
-            break;
-         case VERT_RESULT_BFC0:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
-            stvp->output_semantic_index[slot] = 0;
-            break;
-         case VERT_RESULT_BFC1:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
-            stvp->output_semantic_index[slot] = 1;
-            break;
-         case VERT_RESULT_FOGC:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
-            stvp->output_semantic_index[slot] = 0;
-            break;
-         case VERT_RESULT_PSIZ:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
-            stvp->output_semantic_index[slot] = 0;
-            break;
-         case VERT_RESULT_EDGE:
-            assert(0);
-            break;
-
-         case VERT_RESULT_TEX0:
-         case VERT_RESULT_TEX1:
-         case VERT_RESULT_TEX2:
-         case VERT_RESULT_TEX3:
-         case VERT_RESULT_TEX4:
-         case VERT_RESULT_TEX5:
-         case VERT_RESULT_TEX6:
-         case VERT_RESULT_TEX7:
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
-            stvp->output_semantic_index[slot] = attr - VERT_RESULT_TEX0;
-            break;
-
-         case VERT_RESULT_VAR0:
-         default:
-            assert(attr < VERT_RESULT_MAX);
-            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
-            stvp->output_semantic_index[slot] = (FRAG_ATTRIB_VAR0 - 
-                                                FRAG_ATTRIB_TEX0 +
-                                                attr - 
-                                                VERT_RESULT_VAR0);
-            break;
-         }
-      }
-   }
-   /* similar hack to above, presetup potentially unused edgeflag output */
-   stvp->result_to_output[VERT_RESULT_EDGE] = stvp->num_outputs;
-   stvp->output_semantic_name[stvp->num_outputs] = TGSI_SEMANTIC_EDGEFLAG;
-   stvp->output_semantic_index[stvp->num_outputs] = 0;
-}
-
-
-/**
- * Translate a vertex program to create a new variant.
- */
-static struct st_vp_variant *
-st_translate_vertex_program(struct st_context *st,
-                            struct st_vertex_program *stvp,
-                            const struct st_vp_variant_key *key)
-{
-   struct st_vp_variant *vpv = CALLOC_STRUCT(st_vp_variant);
-   struct pipe_context *pipe = st->pipe;
-   struct ureg_program *ureg;
-   enum pipe_error error;
-   unsigned num_outputs;
-
-   st_prepare_vertex_program( st, stvp );
-
-   _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT);
-   _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_VARYING);
-
-   ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
-   if (ureg == NULL) {
-      FREE(vpv);
-      return NULL;
-   }
-
-   vpv->key = *key;
-
-   vpv->num_inputs = stvp->num_inputs;
-   num_outputs = stvp->num_outputs;
-   if (key->passthrough_edgeflags) {
-      vpv->num_inputs++;
-      num_outputs++;
-   }
-
-   if (ST_DEBUG & DEBUG_MESA) {
-      _mesa_print_program(&stvp->Base.Base);
-      _mesa_print_program_parameters(st->ctx, &stvp->Base.Base);
-      debug_printf("\n");
-   }
-
-   error = st_translate_mesa_program(st->ctx,
-                                     TGSI_PROCESSOR_VERTEX,
-                                     ureg,
-                                     &stvp->Base.Base,
-                                     /* inputs */
-                                     vpv->num_inputs,
-                                     stvp->input_to_index,
-                                     NULL, /* input semantic name */
-                                     NULL, /* input semantic index */
-                                     NULL,
-                                     /* outputs */
-                                     num_outputs,
-                                     stvp->result_to_output,
-                                     stvp->output_semantic_name,
-                                     stvp->output_semantic_index,
-                                     key->passthrough_edgeflags );
-
-   if (error)
-      goto fail;
-
-   vpv->tgsi.tokens = ureg_get_tokens( ureg, NULL );
-   if (!vpv->tgsi.tokens)
-      goto fail;
-
-   ureg_destroy( ureg );
-
-   vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->tgsi);
-
-   if (ST_DEBUG & DEBUG_TGSI) {
-      tgsi_dump( vpv->tgsi.tokens, 0 );
-      debug_printf("\n");
-   }
-
-   return vpv;
-
-fail:
-   debug_printf("%s: failed to translate Mesa program:\n", __FUNCTION__);
-   _mesa_print_program(&stvp->Base.Base);
-   debug_assert(0);
-
-   ureg_destroy( ureg );
-   return NULL;
-}
-
-
-/**
- * Find/create a vertex program variant.
- */
-struct st_vp_variant *
-st_get_vp_variant(struct st_context *st,
-                  struct st_vertex_program *stvp,
-                  const struct st_vp_variant_key *key)
-{
-   struct st_vp_variant *vpv;
-
-   /* Search for existing variant */
-   for (vpv = stvp->variants; vpv; vpv = vpv->next) {
-      if (memcmp(&vpv->key, key, sizeof(*key)) == 0) {
-         break;
-      }
-   }
-
-   if (!vpv) {
-      /* create now */
-      vpv = st_translate_vertex_program(st, stvp, key);
-      if (vpv) {
-         /* insert into list */
-         vpv->next = stvp->variants;
-         stvp->variants = vpv;
-      }
-   }
-
-   return vpv;
-}
-
-
-/**
- * Translate a Mesa fragment shader into a TGSI shader using extra info in
- * the key.
- * \return  new fragment program variant
- */
-static struct st_fp_variant *
-st_translate_fragment_program(struct st_context *st,
-                              struct st_fragment_program *stfp,
-                              const struct st_fp_variant_key *key)
-{
-   struct pipe_context *pipe = st->pipe;
-   struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant);
-   GLboolean deleteFP = GL_FALSE;
-
-   if (!variant)
-      return NULL;
-
-   assert(!(key->bitmap && key->drawpixels));
-
-#if FEATURE_drawpix
-   if (key->bitmap) {
-      /* glBitmap drawing */
-      struct gl_fragment_program *fp; /* we free this temp program below */
-
-      st_make_bitmap_fragment_program(st, &stfp->Base,
-                                      &fp, &variant->bitmap_sampler);
-
-      variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);
-      stfp = st_fragment_program(fp);
-      deleteFP = GL_TRUE;
-   }
-   else if (key->drawpixels) {
-      /* glDrawPixels drawing */
-      struct gl_fragment_program *fp; /* we free this temp program below */
-
-      if (key->drawpixels_z || key->drawpixels_stencil) {
-         fp = st_make_drawpix_z_stencil_program(st, key->drawpixels_z,
-                                                key->drawpixels_stencil);
-      }
-      else {
-         /* RGBA */
-         st_make_drawpix_fragment_program(st, &stfp->Base, &fp);
-         variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);
-         deleteFP = GL_TRUE;
-      }
-      stfp = st_fragment_program(fp);
-   }
-#endif
-
-   if (!stfp->tgsi.tokens) {
-      /* need to translate Mesa instructions to TGSI now */
-      GLuint outputMapping[FRAG_RESULT_MAX];
-      GLuint inputMapping[FRAG_ATTRIB_MAX];
-      GLuint interpMode[PIPE_MAX_SHADER_INPUTS];  /* XXX size? */
-      GLuint attr;
-      enum pipe_error error;
-      const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
-      struct ureg_program *ureg;
-      GLboolean write_all = GL_FALSE;
-
-      ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
-      ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
-      uint fs_num_inputs = 0;
-
-      ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
-      ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
-      uint fs_num_outputs = 0;
-
-
-      _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT);
-
-      /*
-       * Convert Mesa program inputs to TGSI input register semantics.
-       */
-      for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
-         if (inputsRead & (1 << attr)) {
-            const GLuint slot = fs_num_inputs++;
-
-            inputMapping[attr] = slot;
-
-            switch (attr) {
-            case FRAG_ATTRIB_WPOS:
-               input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
-               input_semantic_index[slot] = 0;
-               interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
-               break;
-            case FRAG_ATTRIB_COL0:
-               input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-               input_semantic_index[slot] = 0;
-               interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
-               break;
-            case FRAG_ATTRIB_COL1:
-               input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-               input_semantic_index[slot] = 1;
-               interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
-               break;
-            case FRAG_ATTRIB_FOGC:
-               input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
-               input_semantic_index[slot] = 0;
-               interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
-               break;
-            case FRAG_ATTRIB_FACE:
-               input_semantic_name[slot] = TGSI_SEMANTIC_FACE;
-               input_semantic_index[slot] = 0;
-               interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
-               break;
-               /* In most cases, there is nothing special about these
-                * inputs, so adopt a convention to use the generic
-                * semantic name and the mesa FRAG_ATTRIB_ number as the
-                * index. 
-                * 
-                * All that is required is that the vertex shader labels
-                * its own outputs similarly, and that the vertex shader
-                * generates at least every output required by the
-                * fragment shader plus fixed-function hardware (such as
-                * BFC).
-                * 
-                * There is no requirement that semantic indexes start at
-                * zero or be restricted to a particular range -- nobody
-                * should be building tables based on semantic index.
-                */
-            case FRAG_ATTRIB_PNTC:
-            case FRAG_ATTRIB_TEX0:
-            case FRAG_ATTRIB_TEX1:
-            case FRAG_ATTRIB_TEX2:
-            case FRAG_ATTRIB_TEX3:
-            case FRAG_ATTRIB_TEX4:
-            case FRAG_ATTRIB_TEX5:
-            case FRAG_ATTRIB_TEX6:
-            case FRAG_ATTRIB_TEX7:
-            case FRAG_ATTRIB_VAR0:
-            default:
-               /* Actually, let's try and zero-base this just for
-                * readability of the generated TGSI.
-                */
-               assert(attr >= FRAG_ATTRIB_TEX0);
-               input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0);
-               input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
-               if (attr == FRAG_ATTRIB_PNTC)
-                  interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
-               else
-                  interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
-               break;
-            }
-         }
-         else {
-            inputMapping[attr] = -1;
-         }
-      }
-
-      /*
-       * Semantics and mapping for outputs
-       */
-      {
-         uint numColors = 0;
-         GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten;
-
-         /* if z is written, emit that first */
-         if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
-            fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION;
-            fs_output_semantic_index[fs_num_outputs] = 0;
-            outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs;
-            fs_num_outputs++;
-            outputsWritten &= ~(1 << FRAG_RESULT_DEPTH);
-         }
-
-         if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) {
-            fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL;
-            fs_output_semantic_index[fs_num_outputs] = 0;
-            outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs;
-            fs_num_outputs++;
-            outputsWritten &= ~(1 << FRAG_RESULT_STENCIL);
-         }
-
-         /* handle remaning outputs (color) */
-         for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {
-            if (outputsWritten & BITFIELD64_BIT(attr)) {
-               switch (attr) {
-               case FRAG_RESULT_DEPTH:
-               case FRAG_RESULT_STENCIL:
-                  /* handled above */
-                  assert(0);
-                  break;
-               case FRAG_RESULT_COLOR:
-                  write_all = GL_TRUE; /* fallthrough */
-               default:
-                  assert(attr == FRAG_RESULT_COLOR ||
-                         (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX));
-                  fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR;
-                  fs_output_semantic_index[fs_num_outputs] = numColors;
-                  outputMapping[attr] = fs_num_outputs;
-                  numColors++;
-                  break;
-               }
-
-               fs_num_outputs++;
-            }
-         }
-      }
-
-      ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
-      if (ureg == NULL)
-         return NULL;
-
-      if (ST_DEBUG & DEBUG_MESA) {
-         _mesa_print_program(&stfp->Base.Base);
-         _mesa_print_program_parameters(st->ctx, &stfp->Base.Base);
-         debug_printf("\n");
-      }
-      if (write_all == GL_TRUE)
-         ureg_property_fs_color0_writes_all_cbufs(ureg, 1);
-
-      error = st_translate_mesa_program(st->ctx,
-                                        TGSI_PROCESSOR_FRAGMENT,
-                                        ureg,
-                                        &stfp->Base.Base,
-                                        /* inputs */
-                                        fs_num_inputs,
-                                        inputMapping,
-                                        input_semantic_name,
-                                        input_semantic_index,
-                                        interpMode,
-                                        /* outputs */
-                                        fs_num_outputs,
-                                        outputMapping,
-                                        fs_output_semantic_name,
-                                        fs_output_semantic_index, FALSE );
-
-      stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
-      ureg_destroy( ureg );
-   }
-
-   /* fill in variant */
-   variant->driver_shader = pipe->create_fs_state(pipe, &stfp->tgsi);
-   variant->key = *key;
-
-   if (ST_DEBUG & DEBUG_TGSI) {
-      tgsi_dump( stfp->tgsi.tokens, 0/*TGSI_DUMP_VERBOSE*/ );
-      debug_printf("\n");
-   }
-
-   if (deleteFP) {
-      /* Free the temporary program made above */
-      struct gl_fragment_program *fp = &stfp->Base;
-      _mesa_reference_fragprog(st->ctx, &fp, NULL);
-   }
-
-   return variant;
-}
-
-
-/**
- * Translate fragment program if needed.
- */
-struct st_fp_variant *
-st_get_fp_variant(struct st_context *st,
-                  struct st_fragment_program *stfp,
-                  const struct st_fp_variant_key *key)
-{
-   struct st_fp_variant *fpv;
-
-   /* Search for existing variant */
-   for (fpv = stfp->variants; fpv; fpv = fpv->next) {
-      if (memcmp(&fpv->key, key, sizeof(*key)) == 0) {
-         break;
-      }
-   }
-
-   if (!fpv) {
-      /* create new */
-      fpv = st_translate_fragment_program(st, stfp, key);
-      if (fpv) {
-         /* insert into list */
-         fpv->next = stfp->variants;
-         stfp->variants = fpv;
-      }
-   }
-
-   return fpv;
-}
-
-
-/**
- * Translate a geometry program to create a new variant.
- */
-static struct st_gp_variant *
-st_translate_geometry_program(struct st_context *st,
-                              struct st_geometry_program *stgp,
-                              const struct st_gp_variant_key *key)
-{
-   GLuint inputMapping[GEOM_ATTRIB_MAX];
-   GLuint outputMapping[GEOM_RESULT_MAX];
-   struct pipe_context *pipe = st->pipe;
-   enum pipe_error error;
-   GLuint attr;
-   const GLbitfield inputsRead = stgp->Base.Base.InputsRead;
-   GLuint vslot = 0;
-   GLuint num_generic = 0;
-
-   uint gs_num_inputs = 0;
-   uint gs_builtin_inputs = 0;
-   uint gs_array_offset = 0;
-
-   ubyte gs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
-   ubyte gs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
-   uint gs_num_outputs = 0;
-
-   GLint i;
-   GLuint maxSlot = 0;
-   struct ureg_program *ureg;
-
-   struct st_gp_variant *gpv;
-
-   gpv = CALLOC_STRUCT(st_gp_variant);
-   if (!gpv)
-      return NULL;
-
-   _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_OUTPUT);
-   _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_VARYING);
-
-   ureg = ureg_create( TGSI_PROCESSOR_GEOMETRY );
-   if (ureg == NULL) {
-      FREE(gpv);
-      return NULL;
-   }
-
-   /* which vertex output goes to the first geometry input */
-   vslot = 0;
-
-   memset(inputMapping, 0, sizeof(inputMapping));
-   memset(outputMapping, 0, sizeof(outputMapping));
-
-   /*
-    * Convert Mesa program inputs to TGSI input register semantics.
-    */
-   for (attr = 0; attr < GEOM_ATTRIB_MAX; attr++) {
-      if (inputsRead & (1 << attr)) {
-         const GLuint slot = gs_num_inputs;
-
-         gs_num_inputs++;
-
-         inputMapping[attr] = slot;
-
-         stgp->input_map[slot + gs_array_offset] = vslot - gs_builtin_inputs;
-         stgp->input_to_index[attr] = vslot;
-         stgp->index_to_input[vslot] = attr;
-         ++vslot;
-
-         if (attr != GEOM_ATTRIB_PRIMITIVE_ID) {
-            gs_array_offset += 2;
-         } else
-            ++gs_builtin_inputs;
-
-#if 0
-         debug_printf("input map at %d = %d\n",
-                      slot + gs_array_offset, stgp->input_map[slot + gs_array_offset]);
-#endif
-
-         switch (attr) {
-         case GEOM_ATTRIB_PRIMITIVE_ID:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID;
-            stgp->input_semantic_index[slot] = 0;
-            break;
-         case GEOM_ATTRIB_POSITION:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
-            stgp->input_semantic_index[slot] = 0;
-            break;
-         case GEOM_ATTRIB_COLOR0:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-            stgp->input_semantic_index[slot] = 0;
-            break;
-         case GEOM_ATTRIB_COLOR1:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-            stgp->input_semantic_index[slot] = 1;
-            break;
-         case GEOM_ATTRIB_FOG_FRAG_COORD:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
-            stgp->input_semantic_index[slot] = 0;
-            break;
-         case GEOM_ATTRIB_TEX_COORD:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
-            stgp->input_semantic_index[slot] = num_generic++;
-            break;
-         case GEOM_ATTRIB_VAR0:
-            /* fall-through */
-         default:
-            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
-            stgp->input_semantic_index[slot] = num_generic++;
-         }
-      }
-   }
-
-   /* initialize output semantics to defaults */
-   for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {
-      gs_output_semantic_name[i] = TGSI_SEMANTIC_GENERIC;
-      gs_output_semantic_index[i] = 0;
-   }
-
-   num_generic = 0;
-   /*
-    * Determine number of outputs, the (default) output register
-    * mapping and the semantic information for each output.
-    */
-   for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
-      if (stgp->Base.Base.OutputsWritten & (1 << attr)) {
-         GLuint slot;
-
-         slot = gs_num_outputs;
-         gs_num_outputs++;
-         outputMapping[attr] = slot;
-
-         switch (attr) {
-         case GEOM_RESULT_POS:
-            assert(slot == 0);
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
-            gs_output_semantic_index[slot] = 0;
-            break;
-         case GEOM_RESULT_COL0:
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-            gs_output_semantic_index[slot] = 0;
-            break;
-         case GEOM_RESULT_COL1:
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
-            gs_output_semantic_index[slot] = 1;
-            break;
-         case GEOM_RESULT_SCOL0:
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
-            gs_output_semantic_index[slot] = 0;
-            break;
-         case GEOM_RESULT_SCOL1:
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
-            gs_output_semantic_index[slot] = 1;
-            break;
-         case GEOM_RESULT_FOGC:
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
-            gs_output_semantic_index[slot] = 0;
-            break;
-         case GEOM_RESULT_PSIZ:
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
-            gs_output_semantic_index[slot] = 0;
-            break;
-         case GEOM_RESULT_TEX0:
-         case GEOM_RESULT_TEX1:
-         case GEOM_RESULT_TEX2:
-         case GEOM_RESULT_TEX3:
-         case GEOM_RESULT_TEX4:
-         case GEOM_RESULT_TEX5:
-         case GEOM_RESULT_TEX6:
-         case GEOM_RESULT_TEX7:
-            /* fall-through */
-         case GEOM_RESULT_VAR0:
-            /* fall-through */
-         default:
-            assert(slot < Elements(gs_output_semantic_name));
-            /* use default semantic info */
-            gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
-            gs_output_semantic_index[slot] = num_generic++;
-         }
-      }
-   }
-
-   assert(gs_output_semantic_name[0] == TGSI_SEMANTIC_POSITION);
-
-   /* find max output slot referenced to compute gs_num_outputs */
-   for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
-      if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot)
-         maxSlot = outputMapping[attr];
-   }
-   gs_num_outputs = maxSlot + 1;
-
-#if 0 /* debug */
-   {
-      GLuint i;
-      printf("outputMapping? %d\n", outputMapping ? 1 : 0);
-      if (outputMapping) {
-         printf("attr -> slot\n");
-         for (i = 0; i < 16;  i++) {
-            printf(" %2d       %3d\n", i, outputMapping[i]);
-         }
-      }
-      printf("slot    sem_name  sem_index\n");
-      for (i = 0; i < gs_num_outputs; i++) {
-         printf(" %2d         %d         %d\n",
-                i,
-                gs_output_semantic_name[i],
-                gs_output_semantic_index[i]);
-      }
-   }
-#endif
-
-   /* free old shader state, if any */
-   if (stgp->tgsi.tokens) {
-      st_free_tokens(stgp->tgsi.tokens);
-      stgp->tgsi.tokens = NULL;
-   }
-
-   ureg_property_gs_input_prim(ureg, stgp->Base.InputType);
-   ureg_property_gs_output_prim(ureg, stgp->Base.OutputType);
-   ureg_property_gs_max_vertices(ureg, stgp->Base.VerticesOut);
-
-   error = st_translate_mesa_program(st->ctx,
-                                     TGSI_PROCESSOR_GEOMETRY,
-                                     ureg,
-                                     &stgp->Base.Base,
-                                     /* inputs */
-                                     gs_num_inputs,
-                                     inputMapping,
-                                     stgp->input_semantic_name,
-                                     stgp->input_semantic_index,
-                                     NULL,
-                                     /* outputs */
-                                     gs_num_outputs,
-                                     outputMapping,
-                                     gs_output_semantic_name,
-                                     gs_output_semantic_index,
-                                     FALSE);
-
-   stgp->num_inputs = gs_num_inputs;
-   stgp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
-   ureg_destroy( ureg );
-
-   /* fill in new variant */
-   gpv->driver_shader = pipe->create_gs_state(pipe, &stgp->tgsi);
-   gpv->key = *key;
-
-   if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) {
-      _mesa_print_program(&stgp->Base.Base);
-      debug_printf("\n");
-   }
-
-   if (ST_DEBUG & DEBUG_TGSI) {
-      tgsi_dump(stgp->tgsi.tokens, 0);
-      debug_printf("\n");
-   }
-
-   return gpv;
-}
-
-
-/**
- * Get/create geometry program variant.
- */
-struct st_gp_variant *
-st_get_gp_variant(struct st_context *st,
-                  struct st_geometry_program *stgp,
-                  const struct st_gp_variant_key *key)
-{
-   struct st_gp_variant *gpv;
-
-   /* Search for existing variant */
-   for (gpv = stgp->variants; gpv; gpv = gpv->next) {
-      if (memcmp(&gpv->key, key, sizeof(*key)) == 0) {
-         break;
-      }
-   }
-
-   if (!gpv) {
-      /* create new */
-      gpv = st_translate_geometry_program(st, stgp, key);
-      if (gpv) {
-         /* insert into list */
-         gpv->next = stgp->variants;
-         stgp->variants = gpv;
-      }
-   }
-
-   return gpv;
-}
-
-
-
-
-/**
- * Debug- print current shader text
- */
-void
-st_print_shaders(struct gl_context *ctx)
-{
-   struct gl_shader_program *shProg[3] = {
-      ctx->Shader.CurrentVertexProgram,
-      ctx->Shader.CurrentGeometryProgram,
-      ctx->Shader.CurrentFragmentProgram,
-   };
-   unsigned j;
-
-   for (j = 0; j < 3; j++) {
-      unsigned i;
-
-      if (shProg[j] == NULL)
-	 continue;
-
-      for (i = 0; i < shProg[j]->NumShaders; i++) {
-	 struct gl_shader *sh;
-
-	 switch (shProg[j]->Shaders[i]->Type) {
-	 case GL_VERTEX_SHADER:
-	    sh = (i != 0) ? NULL : shProg[j]->Shaders[i];
-	    break;
-	 case GL_GEOMETRY_SHADER_ARB:
-	    sh = (i != 1) ? NULL : shProg[j]->Shaders[i];
-	    break;
-	 case GL_FRAGMENT_SHADER:
-	    sh = (i != 2) ? NULL : shProg[j]->Shaders[i];
-	    break;
-	 default:
-	    assert(0);
-	    sh = NULL;
-	    break;
-	 }
-
-	 if (sh != NULL) {
-	    printf("GLSL shader %u of %u:\n", i, shProg[j]->NumShaders);
-	    printf("%s\n", sh->Source);
-	 }
-      }
-   }
-}
-
-
-/**
- * Vert/Geom/Frag programs have per-context variants.  Free all the
- * variants attached to the given program which match the given context.
- */
-static void
-destroy_program_variants(struct st_context *st, struct gl_program *program)
-{
-   if (!program)
-      return;
-
-   switch (program->Target) {
-   case GL_VERTEX_PROGRAM_ARB:
-      {
-         struct st_vertex_program *stvp = (struct st_vertex_program *) program;
-         struct st_vp_variant *vpv, **prevPtr = &stvp->variants;
-
-         for (vpv = stvp->variants; vpv; ) {
-            struct st_vp_variant *next = vpv->next;
-            if (vpv->key.st == st) {
-               /* unlink from list */
-               *prevPtr = next;
-               /* destroy this variant */
-               delete_vp_variant(st, vpv);
-            }
-            else {
-               prevPtr = &vpv->next;
-            }
-            vpv = next;
-         }
-      }
-      break;
-   case GL_FRAGMENT_PROGRAM_ARB:
-      {
-         struct st_fragment_program *stfp =
-            (struct st_fragment_program *) program;
-         struct st_fp_variant *fpv, **prevPtr = &stfp->variants;
-
-         for (fpv = stfp->variants; fpv; ) {
-            struct st_fp_variant *next = fpv->next;
-            if (fpv->key.st == st) {
-               /* unlink from list */
-               *prevPtr = next;
-               /* destroy this variant */
-               delete_fp_variant(st, fpv);
-            }
-            else {
-               prevPtr = &fpv->next;
-            }
-            fpv = next;
-         }
-      }
-      break;
-   case MESA_GEOMETRY_PROGRAM:
-      {
-         struct st_geometry_program *stgp =
-            (struct st_geometry_program *) program;
-         struct st_gp_variant *gpv, **prevPtr = &stgp->variants;
-
-         for (gpv = stgp->variants; gpv; ) {
-            struct st_gp_variant *next = gpv->next;
-            if (gpv->key.st == st) {
-               /* unlink from list */
-               *prevPtr = next;
-               /* destroy this variant */
-               delete_gp_variant(st, gpv);
-            }
-            else {
-               prevPtr = &gpv->next;
-            }
-            gpv = next;
-         }
-      }
-      break;
-   default:
-      _mesa_problem(NULL, "Unexpected program target in "
-                    "destroy_program_variants_cb()");
-   }
-}
-
-
-/**
- * Callback for _mesa_HashWalk.  Free all the shader's program variants
- * which match the given context.
- */
-static void
-destroy_shader_program_variants_cb(GLuint key, void *data, void *userData)
-{
-   struct st_context *st = (struct st_context *) userData;
-   struct gl_shader *shader = (struct gl_shader *) data;
-
-   switch (shader->Type) {
-   case GL_SHADER_PROGRAM_MESA:
-      {
-         struct gl_shader_program *shProg = (struct gl_shader_program *) data;
-         GLuint i;
-
-         for (i = 0; i < shProg->NumShaders; i++) {
-            destroy_program_variants(st, shProg->Shaders[i]->Program);
-         }
-
-         destroy_program_variants(st, (struct gl_program *)
-                                  shProg->VertexProgram);
-         destroy_program_variants(st, (struct gl_program *)
-                                  shProg->FragmentProgram);
-         destroy_program_variants(st, (struct gl_program *)
-                                  shProg->GeometryProgram);
-      }
-      break;
-   case GL_VERTEX_SHADER:
-   case GL_FRAGMENT_SHADER:
-   case GL_GEOMETRY_SHADER:
-      {
-         destroy_program_variants(st, shader->Program);
-      }
-      break;
-   default:
-      assert(0);
-   }
-}
-
-
-/**
- * Callback for _mesa_HashWalk.  Free all the program variants which match
- * the given context.
- */
-static void
-destroy_program_variants_cb(GLuint key, void *data, void *userData)
-{
-   struct st_context *st = (struct st_context *) userData;
-   struct gl_program *program = (struct gl_program *) data;
-   destroy_program_variants(st, program);
-}
-
-
-/**
- * Walk over all shaders and programs to delete any variants which
- * belong to the given context.
- * This is called during context tear-down.
- */
-void
-st_destroy_program_variants(struct st_context *st)
-{
-   /* ARB vert/frag program */
-   _mesa_HashWalk(st->ctx->Shared->Programs,
-                  destroy_program_variants_cb, st);
-
-   /* GLSL vert/frag/geom shaders */
-   _mesa_HashWalk(st->ctx->Shared->ShaderObjects,
-                  destroy_shader_program_variants_cb, st);
-}
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+ /*

+  * Authors:

+  *   Keith Whitwell <keith@tungstengraphics.com>

+  *   Brian Paul

+  */

+

+

+#include "main/imports.h"

+#include "main/hash.h"

+#include "main/mfeatures.h"

+#include "main/mtypes.h"

+#include "program/prog_parameter.h"

+#include "program/prog_print.h"

+#include "program/programopt.h"

+

+#include "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "pipe/p_shader_tokens.h"

+#include "draw/draw_context.h"

+#include "tgsi/tgsi_dump.h"

+#include "tgsi/tgsi_ureg.h"

+

+#include "st_debug.h"

+#include "st_cb_bitmap.h"

+#include "st_cb_drawpixels.h"

+#include "st_context.h"

+#include "st_program.h"

+#include "st_mesa_to_tgsi.h"

+#include "cso_cache/cso_context.h"

+

+

+

+/**

+ * Delete a vertex program variant.  Note the caller must unlink

+ * the variant from the linked list.

+ */

+static void

+delete_vp_variant(struct st_context *st, struct st_vp_variant *vpv)

+{

+   if (vpv->driver_shader) 

+      cso_delete_vertex_shader(st->cso_context, vpv->driver_shader);

+      

+#if FEATURE_feedback || FEATURE_rastpos

+   if (vpv->draw_shader)

+      draw_delete_vertex_shader( st->draw, vpv->draw_shader );

+#endif

+      

+   if (vpv->tgsi.tokens)

+      st_free_tokens(vpv->tgsi.tokens);

+      

+   FREE( vpv );

+}

+

+

+

+/**

+ * Clean out any old compilations:

+ */

+void

+st_release_vp_variants( struct st_context *st,

+                        struct st_vertex_program *stvp )

+{

+   struct st_vp_variant *vpv;

+

+   for (vpv = stvp->variants; vpv; ) {

+      struct st_vp_variant *next = vpv->next;

+      delete_vp_variant(st, vpv);

+      vpv = next;

+   }

+

+   stvp->variants = NULL;

+}

+

+

+

+/**

+ * Delete a fragment program variant.  Note the caller must unlink

+ * the variant from the linked list.

+ */

+static void

+delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv)

+{

+   if (fpv->driver_shader) 

+      cso_delete_fragment_shader(st->cso_context, fpv->driver_shader);

+   if (fpv->parameters)

+      _mesa_free_parameter_list(fpv->parameters);

+      

+   FREE(fpv);

+}

+

+

+/**

+ * Free all variants of a fragment program.

+ */

+void

+st_release_fp_variants(struct st_context *st, struct st_fragment_program *stfp)

+{

+   struct st_fp_variant *fpv;

+

+   for (fpv = stfp->variants; fpv; ) {

+      struct st_fp_variant *next = fpv->next;

+      delete_fp_variant(st, fpv);

+      fpv = next;

+   }

+

+   stfp->variants = NULL;

+}

+

+

+/**

+ * Delete a geometry program variant.  Note the caller must unlink

+ * the variant from the linked list.

+ */

+static void

+delete_gp_variant(struct st_context *st, struct st_gp_variant *gpv)

+{

+   if (gpv->driver_shader) 

+      cso_delete_geometry_shader(st->cso_context, gpv->driver_shader);

+      

+   FREE(gpv);

+}

+

+

+/**

+ * Free all variants of a geometry program.

+ */

+void

+st_release_gp_variants(struct st_context *st, struct st_geometry_program *stgp)

+{

+   struct st_gp_variant *gpv;

+

+   for (gpv = stgp->variants; gpv; ) {

+      struct st_gp_variant *next = gpv->next;

+      delete_gp_variant(st, gpv);

+      gpv = next;

+   }

+

+   stgp->variants = NULL;

+}

+

+

+

+

+/**

+ * Translate a Mesa vertex shader into a TGSI shader.

+ * \param outputMapping  to map vertex program output registers (VERT_RESULT_x)

+ *       to TGSI output slots

+ * \param tokensOut  destination for TGSI tokens

+ * \return  pointer to cached pipe_shader object.

+ */

+static void

+st_prepare_vertex_program(struct st_context *st,

+                            struct st_vertex_program *stvp)

+{

+   GLuint attr;

+

+   stvp->num_inputs = 0;

+   stvp->num_outputs = 0;

+

+   if (stvp->Base.IsPositionInvariant)

+      _mesa_insert_mvp_code(st->ctx, &stvp->Base);

+

+   assert(stvp->Base.Base.NumInstructions > 1);

+

+   /*

+    * Determine number of inputs, the mappings between VERT_ATTRIB_x

+    * and TGSI generic input indexes, plus input attrib semantic info.

+    */

+   for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {

+      if (stvp->Base.Base.InputsRead & (1 << attr)) {

+         stvp->input_to_index[attr] = stvp->num_inputs;

+         stvp->index_to_input[stvp->num_inputs] = attr;

+         stvp->num_inputs++;

+      }

+   }

+   /* bit of a hack, presetup potentially unused edgeflag input */

+   stvp->input_to_index[VERT_ATTRIB_EDGEFLAG] = stvp->num_inputs;

+   stvp->index_to_input[stvp->num_inputs] = VERT_ATTRIB_EDGEFLAG;

+

+   /* Compute mapping of vertex program outputs to slots.

+    */

+   for (attr = 0; attr < VERT_RESULT_MAX; attr++) {

+      if ((stvp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) == 0) {

+         stvp->result_to_output[attr] = ~0;

+      }

+      else {

+         unsigned slot = stvp->num_outputs++;

+

+         stvp->result_to_output[attr] = slot;

+

+         switch (attr) {

+         case VERT_RESULT_HPOS:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;

+            stvp->output_semantic_index[slot] = 0;

+            break;

+         case VERT_RESULT_COL0:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+            stvp->output_semantic_index[slot] = 0;

+            break;

+         case VERT_RESULT_COL1:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+            stvp->output_semantic_index[slot] = 1;

+            break;

+         case VERT_RESULT_BFC0:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;

+            stvp->output_semantic_index[slot] = 0;

+            break;

+         case VERT_RESULT_BFC1:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;

+            stvp->output_semantic_index[slot] = 1;

+            break;

+         case VERT_RESULT_FOGC:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG;

+            stvp->output_semantic_index[slot] = 0;

+            break;

+         case VERT_RESULT_PSIZ:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;

+            stvp->output_semantic_index[slot] = 0;

+            break;

+         case VERT_RESULT_EDGE:

+            assert(0);

+            break;

+

+         case VERT_RESULT_TEX0:

+         case VERT_RESULT_TEX1:

+         case VERT_RESULT_TEX2:

+         case VERT_RESULT_TEX3:

+         case VERT_RESULT_TEX4:

+         case VERT_RESULT_TEX5:

+         case VERT_RESULT_TEX6:

+         case VERT_RESULT_TEX7:

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;

+            stvp->output_semantic_index[slot] = attr - VERT_RESULT_TEX0;

+            break;

+

+         case VERT_RESULT_VAR0:

+         default:

+            assert(attr < VERT_RESULT_MAX);

+            stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;

+            stvp->output_semantic_index[slot] = (FRAG_ATTRIB_VAR0 - 

+                                                FRAG_ATTRIB_TEX0 +

+                                                attr - 

+                                                VERT_RESULT_VAR0);

+            break;

+         }

+      }

+   }

+   /* similar hack to above, presetup potentially unused edgeflag output */

+   stvp->result_to_output[VERT_RESULT_EDGE] = stvp->num_outputs;

+   stvp->output_semantic_name[stvp->num_outputs] = TGSI_SEMANTIC_EDGEFLAG;

+   stvp->output_semantic_index[stvp->num_outputs] = 0;

+}

+

+

+/**

+ * Translate a vertex program to create a new variant.

+ */

+static struct st_vp_variant *

+st_translate_vertex_program(struct st_context *st,

+                            struct st_vertex_program *stvp,

+                            const struct st_vp_variant_key *key)

+{

+   struct st_vp_variant *vpv = CALLOC_STRUCT(st_vp_variant);

+   struct pipe_context *pipe = st->pipe;

+   struct ureg_program *ureg;

+   enum pipe_error error;

+   unsigned num_outputs;

+

+   st_prepare_vertex_program( st, stvp );

+

+   _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT);

+   _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_VARYING);

+

+   ureg = ureg_create( TGSI_PROCESSOR_VERTEX );

+   if (ureg == NULL) {

+      FREE(vpv);

+      return NULL;

+   }

+

+   vpv->key = *key;

+

+   vpv->num_inputs = stvp->num_inputs;

+   num_outputs = stvp->num_outputs;

+   if (key->passthrough_edgeflags) {

+      vpv->num_inputs++;

+      num_outputs++;

+   }

+

+   if (ST_DEBUG & DEBUG_MESA) {

+      _mesa_print_program(&stvp->Base.Base);

+      _mesa_print_program_parameters(st->ctx, &stvp->Base.Base);

+      debug_printf("\n");

+   }

+

+   error = st_translate_mesa_program(st->ctx,

+                                     TGSI_PROCESSOR_VERTEX,

+                                     ureg,

+                                     &stvp->Base.Base,

+                                     /* inputs */

+                                     vpv->num_inputs,

+                                     stvp->input_to_index,

+                                     NULL, /* input semantic name */

+                                     NULL, /* input semantic index */

+                                     NULL,

+                                     /* outputs */

+                                     num_outputs,

+                                     stvp->result_to_output,

+                                     stvp->output_semantic_name,

+                                     stvp->output_semantic_index,

+                                     key->passthrough_edgeflags );

+

+   if (error)

+      goto fail;

+

+   vpv->tgsi.tokens = ureg_get_tokens( ureg, NULL );

+   if (!vpv->tgsi.tokens)

+      goto fail;

+

+   ureg_destroy( ureg );

+

+   vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->tgsi);

+

+   if (ST_DEBUG & DEBUG_TGSI) {

+      tgsi_dump( vpv->tgsi.tokens, 0 );

+      debug_printf("\n");

+   }

+

+   return vpv;

+

+fail:

+   debug_printf("%s: failed to translate Mesa program:\n", __FUNCTION__);

+   _mesa_print_program(&stvp->Base.Base);

+   debug_assert(0);

+

+   ureg_destroy( ureg );

+   return NULL;

+}

+

+

+/**

+ * Find/create a vertex program variant.

+ */

+struct st_vp_variant *

+st_get_vp_variant(struct st_context *st,

+                  struct st_vertex_program *stvp,

+                  const struct st_vp_variant_key *key)

+{

+   struct st_vp_variant *vpv;

+

+   /* Search for existing variant */

+   for (vpv = stvp->variants; vpv; vpv = vpv->next) {

+      if (memcmp(&vpv->key, key, sizeof(*key)) == 0) {

+         break;

+      }

+   }

+

+   if (!vpv) {

+      /* create now */

+      vpv = st_translate_vertex_program(st, stvp, key);

+      if (vpv) {

+         /* insert into list */

+         vpv->next = stvp->variants;

+         stvp->variants = vpv;

+      }

+   }

+

+   return vpv;

+}

+

+

+/**

+ * Translate a Mesa fragment shader into a TGSI shader using extra info in

+ * the key.

+ * \return  new fragment program variant

+ */

+static struct st_fp_variant *

+st_translate_fragment_program(struct st_context *st,

+                              struct st_fragment_program *stfp,

+                              const struct st_fp_variant_key *key)

+{

+   struct pipe_context *pipe = st->pipe;

+   struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant);

+   GLboolean deleteFP = GL_FALSE;

+

+   if (!variant)

+      return NULL;

+

+   assert(!(key->bitmap && key->drawpixels));

+

+#if FEATURE_drawpix

+   if (key->bitmap) {

+      /* glBitmap drawing */

+      struct gl_fragment_program *fp; /* we free this temp program below */

+

+      st_make_bitmap_fragment_program(st, &stfp->Base,

+                                      &fp, &variant->bitmap_sampler);

+

+      variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);

+      stfp = st_fragment_program(fp);

+      deleteFP = GL_TRUE;

+   }

+   else if (key->drawpixels) {

+      /* glDrawPixels drawing */

+      struct gl_fragment_program *fp; /* we free this temp program below */

+

+      if (key->drawpixels_z || key->drawpixels_stencil) {

+         fp = st_make_drawpix_z_stencil_program(st, key->drawpixels_z,

+                                                key->drawpixels_stencil);

+      }

+      else {

+         /* RGBA */

+         st_make_drawpix_fragment_program(st, &stfp->Base, &fp);

+         variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters);

+         deleteFP = GL_TRUE;

+      }

+      stfp = st_fragment_program(fp);

+   }

+#endif

+

+   if (!stfp->tgsi.tokens) {

+      /* need to translate Mesa instructions to TGSI now */

+      GLuint outputMapping[FRAG_RESULT_MAX];

+      GLuint inputMapping[FRAG_ATTRIB_MAX];

+      GLuint interpMode[PIPE_MAX_SHADER_INPUTS];  /* XXX size? */

+      GLuint attr;

+      enum pipe_error error;

+      const GLbitfield inputsRead = stfp->Base.Base.InputsRead;

+      struct ureg_program *ureg;

+      GLboolean write_all = GL_FALSE;

+

+      ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];

+      ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];

+      uint fs_num_inputs = 0;

+

+      ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];

+      ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];

+      uint fs_num_outputs = 0;

+

+

+      _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT);

+

+      /*

+       * Convert Mesa program inputs to TGSI input register semantics.

+       */

+      for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {

+         if (inputsRead & (1 << attr)) {

+            const GLuint slot = fs_num_inputs++;

+

+            inputMapping[attr] = slot;

+

+            switch (attr) {

+            case FRAG_ATTRIB_WPOS:

+               input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;

+               input_semantic_index[slot] = 0;

+               interpMode[slot] = TGSI_INTERPOLATE_LINEAR;

+               break;

+            case FRAG_ATTRIB_COL0:

+               input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+               input_semantic_index[slot] = 0;

+               interpMode[slot] = TGSI_INTERPOLATE_LINEAR;

+               break;

+            case FRAG_ATTRIB_COL1:

+               input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+               input_semantic_index[slot] = 1;

+               interpMode[slot] = TGSI_INTERPOLATE_LINEAR;

+               break;

+            case FRAG_ATTRIB_FOGC:

+               input_semantic_name[slot] = TGSI_SEMANTIC_FOG;

+               input_semantic_index[slot] = 0;

+               interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;

+               break;

+            case FRAG_ATTRIB_FACE:

+               input_semantic_name[slot] = TGSI_SEMANTIC_FACE;

+               input_semantic_index[slot] = 0;

+               interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;

+               break;

+               /* In most cases, there is nothing special about these

+                * inputs, so adopt a convention to use the generic

+                * semantic name and the mesa FRAG_ATTRIB_ number as the

+                * index. 

+                * 

+                * All that is required is that the vertex shader labels

+                * its own outputs similarly, and that the vertex shader

+                * generates at least every output required by the

+                * fragment shader plus fixed-function hardware (such as

+                * BFC).

+                * 

+                * There is no requirement that semantic indexes start at

+                * zero or be restricted to a particular range -- nobody

+                * should be building tables based on semantic index.

+                */

+            case FRAG_ATTRIB_PNTC:

+            case FRAG_ATTRIB_TEX0:

+            case FRAG_ATTRIB_TEX1:

+            case FRAG_ATTRIB_TEX2:

+            case FRAG_ATTRIB_TEX3:

+            case FRAG_ATTRIB_TEX4:

+            case FRAG_ATTRIB_TEX5:

+            case FRAG_ATTRIB_TEX6:

+            case FRAG_ATTRIB_TEX7:

+            case FRAG_ATTRIB_VAR0:

+            default:

+               /* Actually, let's try and zero-base this just for

+                * readability of the generated TGSI.

+                */

+               assert(attr >= FRAG_ATTRIB_TEX0);

+               input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0);

+               input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;

+               if (attr == FRAG_ATTRIB_PNTC)

+                  interpMode[slot] = TGSI_INTERPOLATE_LINEAR;

+               else

+                  interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;

+               break;

+            }

+         }

+         else {

+            inputMapping[attr] = -1;

+         }

+      }

+

+      /*

+       * Semantics and mapping for outputs

+       */

+      {

+         uint numColors = 0;

+         GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten;

+

+         /* if z is written, emit that first */

+         if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {

+            fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION;

+            fs_output_semantic_index[fs_num_outputs] = 0;

+            outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs;

+            fs_num_outputs++;

+            outputsWritten &= ~(1 << FRAG_RESULT_DEPTH);

+         }

+

+         if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) {

+            fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL;

+            fs_output_semantic_index[fs_num_outputs] = 0;

+            outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs;

+            fs_num_outputs++;

+            outputsWritten &= ~(1 << FRAG_RESULT_STENCIL);

+         }

+

+         /* handle remaning outputs (color) */

+         for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {

+            if (outputsWritten & BITFIELD64_BIT(attr)) {

+               switch (attr) {

+               case FRAG_RESULT_DEPTH:

+               case FRAG_RESULT_STENCIL:

+                  /* handled above */

+                  assert(0);

+                  break;

+               case FRAG_RESULT_COLOR:

+                  write_all = GL_TRUE; /* fallthrough */

+               default:

+                  assert(attr == FRAG_RESULT_COLOR ||

+                         (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX));

+                  fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR;

+                  fs_output_semantic_index[fs_num_outputs] = numColors;

+                  outputMapping[attr] = fs_num_outputs;

+                  numColors++;

+                  break;

+               }

+

+               fs_num_outputs++;

+            }

+         }

+      }

+

+      ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );

+      if (ureg == NULL)

+         return NULL;

+

+      if (ST_DEBUG & DEBUG_MESA) {

+         _mesa_print_program(&stfp->Base.Base);

+         _mesa_print_program_parameters(st->ctx, &stfp->Base.Base);

+         debug_printf("\n");

+      }

+      if (write_all == GL_TRUE)

+         ureg_property_fs_color0_writes_all_cbufs(ureg, 1);

+

+      error = st_translate_mesa_program(st->ctx,

+                                        TGSI_PROCESSOR_FRAGMENT,

+                                        ureg,

+                                        &stfp->Base.Base,

+                                        /* inputs */

+                                        fs_num_inputs,

+                                        inputMapping,

+                                        input_semantic_name,

+                                        input_semantic_index,

+                                        interpMode,

+                                        /* outputs */

+                                        fs_num_outputs,

+                                        outputMapping,

+                                        fs_output_semantic_name,

+                                        fs_output_semantic_index, FALSE );

+

+      stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL );

+      ureg_destroy( ureg );

+   }

+

+   /* fill in variant */

+   variant->driver_shader = pipe->create_fs_state(pipe, &stfp->tgsi);

+   variant->key = *key;

+

+   if (ST_DEBUG & DEBUG_TGSI) {

+      tgsi_dump( stfp->tgsi.tokens, 0/*TGSI_DUMP_VERBOSE*/ );

+      debug_printf("\n");

+   }

+

+   if (deleteFP) {

+      /* Free the temporary program made above */

+      struct gl_fragment_program *fp = &stfp->Base;

+      _mesa_reference_fragprog(st->ctx, &fp, NULL);

+   }

+

+   return variant;

+}

+

+

+/**

+ * Translate fragment program if needed.

+ */

+struct st_fp_variant *

+st_get_fp_variant(struct st_context *st,

+                  struct st_fragment_program *stfp,

+                  const struct st_fp_variant_key *key)

+{

+   struct st_fp_variant *fpv;

+

+   /* Search for existing variant */

+   for (fpv = stfp->variants; fpv; fpv = fpv->next) {

+      if (memcmp(&fpv->key, key, sizeof(*key)) == 0) {

+         break;

+      }

+   }

+

+   if (!fpv) {

+      /* create new */

+      fpv = st_translate_fragment_program(st, stfp, key);

+      if (fpv) {

+         /* insert into list */

+         fpv->next = stfp->variants;

+         stfp->variants = fpv;

+      }

+   }

+

+   return fpv;

+}

+

+

+/**

+ * Translate a geometry program to create a new variant.

+ */

+static struct st_gp_variant *

+st_translate_geometry_program(struct st_context *st,

+                              struct st_geometry_program *stgp,

+                              const struct st_gp_variant_key *key)

+{

+   GLuint inputMapping[GEOM_ATTRIB_MAX];

+   GLuint outputMapping[GEOM_RESULT_MAX];

+   struct pipe_context *pipe = st->pipe;

+   enum pipe_error error;

+   GLuint attr;

+   const GLbitfield inputsRead = stgp->Base.Base.InputsRead;

+   GLuint vslot = 0;

+   GLuint num_generic = 0;

+

+   uint gs_num_inputs = 0;

+   uint gs_builtin_inputs = 0;

+   uint gs_array_offset = 0;

+

+   ubyte gs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];

+   ubyte gs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];

+   uint gs_num_outputs = 0;

+

+   GLint i;

+   GLuint maxSlot = 0;

+   struct ureg_program *ureg;

+

+   struct st_gp_variant *gpv;

+

+   gpv = CALLOC_STRUCT(st_gp_variant);

+   if (!gpv)

+      return NULL;

+

+   _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_OUTPUT);

+   _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_VARYING);

+

+   ureg = ureg_create( TGSI_PROCESSOR_GEOMETRY );

+   if (ureg == NULL) {

+      FREE(gpv);

+      return NULL;

+   }

+

+   /* which vertex output goes to the first geometry input */

+   vslot = 0;

+

+   memset(inputMapping, 0, sizeof(inputMapping));

+   memset(outputMapping, 0, sizeof(outputMapping));

+

+   /*

+    * Convert Mesa program inputs to TGSI input register semantics.

+    */

+   for (attr = 0; attr < GEOM_ATTRIB_MAX; attr++) {

+      if (inputsRead & (1 << attr)) {

+         const GLuint slot = gs_num_inputs;

+

+         gs_num_inputs++;

+

+         inputMapping[attr] = slot;

+

+         stgp->input_map[slot + gs_array_offset] = vslot - gs_builtin_inputs;

+         stgp->input_to_index[attr] = vslot;

+         stgp->index_to_input[vslot] = attr;

+         ++vslot;

+

+         if (attr != GEOM_ATTRIB_PRIMITIVE_ID) {

+            gs_array_offset += 2;

+         } else

+            ++gs_builtin_inputs;

+

+#if 0

+         debug_printf("input map at %d = %d\n",

+                      slot + gs_array_offset, stgp->input_map[slot + gs_array_offset]);

+#endif

+

+         switch (attr) {

+         case GEOM_ATTRIB_PRIMITIVE_ID:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID;

+            stgp->input_semantic_index[slot] = 0;

+            break;

+         case GEOM_ATTRIB_POSITION:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;

+            stgp->input_semantic_index[slot] = 0;

+            break;

+         case GEOM_ATTRIB_COLOR0:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+            stgp->input_semantic_index[slot] = 0;

+            break;

+         case GEOM_ATTRIB_COLOR1:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+            stgp->input_semantic_index[slot] = 1;

+            break;

+         case GEOM_ATTRIB_FOG_FRAG_COORD:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;

+            stgp->input_semantic_index[slot] = 0;

+            break;

+         case GEOM_ATTRIB_TEX_COORD:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;

+            stgp->input_semantic_index[slot] = num_generic++;

+            break;

+         case GEOM_ATTRIB_VAR0:

+            /* fall-through */

+         default:

+            stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;

+            stgp->input_semantic_index[slot] = num_generic++;

+         }

+      }

+   }

+

+   /* initialize output semantics to defaults */

+   for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {

+      gs_output_semantic_name[i] = TGSI_SEMANTIC_GENERIC;

+      gs_output_semantic_index[i] = 0;

+   }

+

+   num_generic = 0;

+   /*

+    * Determine number of outputs, the (default) output register

+    * mapping and the semantic information for each output.

+    */

+   for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {

+      if (stgp->Base.Base.OutputsWritten & (1 << attr)) {

+         GLuint slot;

+

+         slot = gs_num_outputs;

+         gs_num_outputs++;

+         outputMapping[attr] = slot;

+

+         switch (attr) {

+         case GEOM_RESULT_POS:

+            assert(slot == 0);

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;

+            gs_output_semantic_index[slot] = 0;

+            break;

+         case GEOM_RESULT_COL0:

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+            gs_output_semantic_index[slot] = 0;

+            break;

+         case GEOM_RESULT_COL1:

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;

+            gs_output_semantic_index[slot] = 1;

+            break;

+         case GEOM_RESULT_SCOL0:

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;

+            gs_output_semantic_index[slot] = 0;

+            break;

+         case GEOM_RESULT_SCOL1:

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;

+            gs_output_semantic_index[slot] = 1;

+            break;

+         case GEOM_RESULT_FOGC:

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG;

+            gs_output_semantic_index[slot] = 0;

+            break;

+         case GEOM_RESULT_PSIZ:

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;

+            gs_output_semantic_index[slot] = 0;

+            break;

+         case GEOM_RESULT_TEX0:

+         case GEOM_RESULT_TEX1:

+         case GEOM_RESULT_TEX2:

+         case GEOM_RESULT_TEX3:

+         case GEOM_RESULT_TEX4:

+         case GEOM_RESULT_TEX5:

+         case GEOM_RESULT_TEX6:

+         case GEOM_RESULT_TEX7:

+            /* fall-through */

+         case GEOM_RESULT_VAR0:

+            /* fall-through */

+         default:

+            assert(slot < Elements(gs_output_semantic_name));

+            /* use default semantic info */

+            gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;

+            gs_output_semantic_index[slot] = num_generic++;

+         }

+      }

+   }

+

+   assert(gs_output_semantic_name[0] == TGSI_SEMANTIC_POSITION);

+

+   /* find max output slot referenced to compute gs_num_outputs */

+   for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {

+      if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot)

+         maxSlot = outputMapping[attr];

+   }

+   gs_num_outputs = maxSlot + 1;

+

+#if 0 /* debug */

+   {

+      GLuint i;

+      printf("outputMapping? %d\n", outputMapping ? 1 : 0);

+      if (outputMapping) {

+         printf("attr -> slot\n");

+         for (i = 0; i < 16;  i++) {

+            printf(" %2d       %3d\n", i, outputMapping[i]);

+         }

+      }

+      printf("slot    sem_name  sem_index\n");

+      for (i = 0; i < gs_num_outputs; i++) {

+         printf(" %2d         %d         %d\n",

+                i,

+                gs_output_semantic_name[i],

+                gs_output_semantic_index[i]);

+      }

+   }

+#endif

+

+   /* free old shader state, if any */

+   if (stgp->tgsi.tokens) {

+      st_free_tokens(stgp->tgsi.tokens);

+      stgp->tgsi.tokens = NULL;

+   }

+

+   ureg_property_gs_input_prim(ureg, stgp->Base.InputType);

+   ureg_property_gs_output_prim(ureg, stgp->Base.OutputType);

+   ureg_property_gs_max_vertices(ureg, stgp->Base.VerticesOut);

+

+   error = st_translate_mesa_program(st->ctx,

+                                     TGSI_PROCESSOR_GEOMETRY,

+                                     ureg,

+                                     &stgp->Base.Base,

+                                     /* inputs */

+                                     gs_num_inputs,

+                                     inputMapping,

+                                     stgp->input_semantic_name,

+                                     stgp->input_semantic_index,

+                                     NULL,

+                                     /* outputs */

+                                     gs_num_outputs,

+                                     outputMapping,

+                                     gs_output_semantic_name,

+                                     gs_output_semantic_index,

+                                     FALSE);

+

+   stgp->num_inputs = gs_num_inputs;

+   stgp->tgsi.tokens = ureg_get_tokens( ureg, NULL );

+   ureg_destroy( ureg );

+

+   /* fill in new variant */

+   gpv->driver_shader = pipe->create_gs_state(pipe, &stgp->tgsi);

+   gpv->key = *key;

+

+   if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) {

+      _mesa_print_program(&stgp->Base.Base);

+      debug_printf("\n");

+   }

+

+   if (ST_DEBUG & DEBUG_TGSI) {

+      tgsi_dump(stgp->tgsi.tokens, 0);

+      debug_printf("\n");

+   }

+

+   return gpv;

+}

+

+

+/**

+ * Get/create geometry program variant.

+ */

+struct st_gp_variant *

+st_get_gp_variant(struct st_context *st,

+                  struct st_geometry_program *stgp,

+                  const struct st_gp_variant_key *key)

+{

+   struct st_gp_variant *gpv;

+

+   /* Search for existing variant */

+   for (gpv = stgp->variants; gpv; gpv = gpv->next) {

+      if (memcmp(&gpv->key, key, sizeof(*key)) == 0) {

+         break;

+      }

+   }

+

+   if (!gpv) {

+      /* create new */

+      gpv = st_translate_geometry_program(st, stgp, key);

+      if (gpv) {

+         /* insert into list */

+         gpv->next = stgp->variants;

+         stgp->variants = gpv;

+      }

+   }

+

+   return gpv;

+}

+

+

+

+

+/**

+ * Debug- print current shader text

+ */

+void

+st_print_shaders(struct gl_context *ctx)

+{

+   struct gl_shader_program *shProg[3] = {

+      ctx->Shader.CurrentVertexProgram,

+      ctx->Shader.CurrentGeometryProgram,

+      ctx->Shader.CurrentFragmentProgram,

+   };

+   unsigned j;

+

+   for (j = 0; j < 3; j++) {

+      unsigned i;

+

+      if (shProg[j] == NULL)

+	 continue;

+

+      for (i = 0; i < shProg[j]->NumShaders; i++) {

+	 struct gl_shader *sh;

+

+	 switch (shProg[j]->Shaders[i]->Type) {

+	 case GL_VERTEX_SHADER:

+	    sh = (i != 0) ? NULL : shProg[j]->Shaders[i];

+	    break;

+	 case GL_GEOMETRY_SHADER_ARB:

+	    sh = (i != 1) ? NULL : shProg[j]->Shaders[i];

+	    break;

+	 case GL_FRAGMENT_SHADER:

+	    sh = (i != 2) ? NULL : shProg[j]->Shaders[i];

+	    break;

+	 default:

+	    assert(0);

+	    sh = NULL;

+	    break;

+	 }

+

+	 if (sh != NULL) {

+	    printf("GLSL shader %u of %u:\n", i, shProg[j]->NumShaders);

+	    printf("%s\n", sh->Source);

+	 }

+      }

+   }

+}

+

+

+/**

+ * Vert/Geom/Frag programs have per-context variants.  Free all the

+ * variants attached to the given program which match the given context.

+ */

+static void

+destroy_program_variants(struct st_context *st, struct gl_program *program)

+{

+   if (!program)

+      return;

+

+   switch (program->Target) {

+   case GL_VERTEX_PROGRAM_ARB:

+      {

+         struct st_vertex_program *stvp = (struct st_vertex_program *) program;

+         struct st_vp_variant *vpv, **prevPtr = &stvp->variants;

+

+         for (vpv = stvp->variants; vpv; ) {

+            struct st_vp_variant *next = vpv->next;

+            if (vpv->key.st == st) {

+               /* unlink from list */

+               *prevPtr = next;

+               /* destroy this variant */

+               delete_vp_variant(st, vpv);

+            }

+            else {

+               prevPtr = &vpv->next;

+            }

+            vpv = next;

+         }

+      }

+      break;

+   case GL_FRAGMENT_PROGRAM_ARB:

+      {

+         struct st_fragment_program *stfp =

+            (struct st_fragment_program *) program;

+         struct st_fp_variant *fpv, **prevPtr = &stfp->variants;

+

+         for (fpv = stfp->variants; fpv; ) {

+            struct st_fp_variant *next = fpv->next;

+            if (fpv->key.st == st) {

+               /* unlink from list */

+               *prevPtr = next;

+               /* destroy this variant */

+               delete_fp_variant(st, fpv);

+            }

+            else {

+               prevPtr = &fpv->next;

+            }

+            fpv = next;

+         }

+      }

+      break;

+   case MESA_GEOMETRY_PROGRAM:

+      {

+         struct st_geometry_program *stgp =

+            (struct st_geometry_program *) program;

+         struct st_gp_variant *gpv, **prevPtr = &stgp->variants;

+

+         for (gpv = stgp->variants; gpv; ) {

+            struct st_gp_variant *next = gpv->next;

+            if (gpv->key.st == st) {

+               /* unlink from list */

+               *prevPtr = next;

+               /* destroy this variant */

+               delete_gp_variant(st, gpv);

+            }

+            else {

+               prevPtr = &gpv->next;

+            }

+            gpv = next;

+         }

+      }

+      break;

+   default:

+      _mesa_problem(NULL, "Unexpected program target in "

+                    "destroy_program_variants_cb()");

+   }

+}

+

+

+/**

+ * Callback for _mesa_HashWalk.  Free all the shader's program variants

+ * which match the given context.

+ */

+static void

+destroy_shader_program_variants_cb(GLuint key, void *data, void *userData)

+{

+   struct st_context *st = (struct st_context *) userData;

+   struct gl_shader *shader = (struct gl_shader *) data;

+

+   switch (shader->Type) {

+   case GL_SHADER_PROGRAM_MESA:

+      {

+         struct gl_shader_program *shProg = (struct gl_shader_program *) data;

+         GLuint i;

+

+         for (i = 0; i < shProg->NumShaders; i++) {

+            destroy_program_variants(st, shProg->Shaders[i]->Program);

+         }

+

+         destroy_program_variants(st, (struct gl_program *)

+                                  shProg->VertexProgram);

+         destroy_program_variants(st, (struct gl_program *)

+                                  shProg->FragmentProgram);

+         destroy_program_variants(st, (struct gl_program *)

+                                  shProg->GeometryProgram);

+      }

+      break;

+   case GL_VERTEX_SHADER:

+   case GL_FRAGMENT_SHADER:

+   case GL_GEOMETRY_SHADER:

+      {

+         destroy_program_variants(st, shader->Program);

+      }

+      break;

+   default:

+      assert(0);

+   }

+}

+

+

+/**

+ * Callback for _mesa_HashWalk.  Free all the program variants which match

+ * the given context.

+ */

+static void

+destroy_program_variants_cb(GLuint key, void *data, void *userData)

+{

+   struct st_context *st = (struct st_context *) userData;

+   struct gl_program *program = (struct gl_program *) data;

+   destroy_program_variants(st, program);

+}

+

+

+/**

+ * Walk over all shaders and programs to delete any variants which

+ * belong to the given context.

+ * This is called during context tear-down.

+ */

+void

+st_destroy_program_variants(struct st_context *st)

+{

+   /* ARB vert/frag program */

+   _mesa_HashWalk(st->ctx->Shared->Programs,

+                  destroy_program_variants_cb, st);

+

+   /* GLSL vert/frag/geom shaders */

+   _mesa_HashWalk(st->ctx->Shared->ShaderObjects,

+                  destroy_shader_program_variants_cb, st);

+}

diff --git a/mesalib/src/mesa/tnl/t_draw.c b/mesalib/src/mesa/tnl/t_draw.c
index b1967e654..a2ca6225b 100644
--- a/mesalib/src/mesa/tnl/t_draw.c
+++ b/mesalib/src/mesa/tnl/t_draw.c
@@ -1,534 +1,534 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- *    Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#include "main/glheader.h"
-#include "main/condrender.h"
-#include "main/context.h"
-#include "main/imports.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-#include "main/enums.h"
-
-#include "t_context.h"
-#include "tnl.h"
-
-
-
-static GLubyte *get_space(struct gl_context *ctx, GLuint bytes)
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   GLubyte *space = malloc(bytes);
-   
-   tnl->block[tnl->nr_blocks++] = space;
-   return space;
-}
-
-
-static void free_space(struct gl_context *ctx)
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   GLuint i;
-   for (i = 0; i < tnl->nr_blocks; i++)
-      free(tnl->block[i]);
-   tnl->nr_blocks = 0;
-}
-
-
-/* Convert the incoming array to GLfloats.  Understands the
- * array->Normalized flag and selects the correct conversion method.
- */
-#define CONVERT( TYPE, MACRO ) do {		\
-   GLuint i, j;					\
-   if (input->Normalized) {			\
-      for (i = 0; i < count; i++) {		\
-	 const TYPE *in = (TYPE *)ptr;		\
-	 for (j = 0; j < sz; j++) {		\
-	    *fptr++ = MACRO(*in);		\
-	    in++;				\
-	 }					\
-	 ptr += input->StrideB;			\
-      }						\
-   } else {					\
-      for (i = 0; i < count; i++) {		\
-	 const TYPE *in = (TYPE *)ptr;		\
-	 for (j = 0; j < sz; j++) {		\
-	    *fptr++ = (GLfloat)(*in);		\
-	    in++;				\
-	 }					\
-	 ptr += input->StrideB;			\
-      }						\
-   }						\
-} while (0)
-
-
-/**
- * Convert array of BGRA/GLubyte[4] values to RGBA/float[4]
- * \param ptr  input/ubyte array
- * \param fptr  output/float array
- */
-static void
-convert_bgra_to_float(const struct gl_client_array *input,
-                      const GLubyte *ptr, GLfloat *fptr,
-                      GLuint count )
-{
-   GLuint i;
-   assert(input->Normalized);
-   assert(input->Size == 4);
-   for (i = 0; i < count; i++) {
-      const GLubyte *in = (GLubyte *) ptr;  /* in is in BGRA order */
-      *fptr++ = UBYTE_TO_FLOAT(in[2]);  /* red */
-      *fptr++ = UBYTE_TO_FLOAT(in[1]);  /* green */
-      *fptr++ = UBYTE_TO_FLOAT(in[0]);  /* blue */
-      *fptr++ = UBYTE_TO_FLOAT(in[3]);  /* alpha */
-      ptr += input->StrideB;
-   }
-}
-
-static void
-convert_half_to_float(const struct gl_client_array *input,
-		      const GLubyte *ptr, GLfloat *fptr,
-		      GLuint count, GLuint sz)
-{
-   GLuint i, j;
-
-   for (i = 0; i < count; i++) {
-      GLhalfARB *in = (GLhalfARB *)ptr;
-
-      for (j = 0; j < sz; j++) {
-	 *fptr++ = _mesa_half_to_float(in[j]);
-      }
-      ptr += input->StrideB;
-   }
-}
-
-/**
- * \brief Convert fixed-point to floating-point.
- *
- * In OpenGL, a fixed-point number is a "signed 2's complement 16.16 scaled
- * integer" (Table 2.2 of the OpenGL ES 2.0 spec).
- *
- * If the buffer has the \c normalized flag set, the formula
- *     \code normalize(x) := (2*x + 1) / (2^16 - 1) \endcode
- * is used to map the fixed-point numbers into the range [-1, 1].
- */
-static void
-convert_fixed_to_float(const struct gl_client_array *input,
-                       const GLubyte *ptr, GLfloat *fptr,
-                       GLuint count)
-{
-   GLuint i, j;
-   const GLint size = input->Size;
-
-   if (input->Normalized) {
-      for (i = 0; i < count; ++i) {
-         const GLfixed *in = (GLfixed *) ptr;
-         for (j = 0; j < size; ++j) {
-            *fptr++ = (GLfloat) (2 * in[j] + 1) / (GLfloat) ((1 << 16) - 1);
-         }
-         ptr += input->StrideB;
-      }
-   } else {
-      for (i = 0; i < count; ++i) {
-         const GLfixed *in = (GLfixed *) ptr;
-         for (j = 0; j < size; ++j) {
-            *fptr++ = in[j] / (GLfloat) (1 << 16);
-         }
-         ptr += input->StrideB;
-      }
-   }
-}
-
-/* Adjust pointer to point at first requested element, convert to
- * floating point, populate VB->AttribPtr[].
- */
-static void _tnl_import_array( struct gl_context *ctx,
-			       GLuint attrib,
-			       GLuint count,
-			       const struct gl_client_array *input,
-			       const GLubyte *ptr )
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   struct vertex_buffer *VB = &tnl->vb;
-   GLuint stride = input->StrideB;
-
-   if (input->Type != GL_FLOAT) {
-      const GLuint sz = input->Size;
-      GLubyte *buf = get_space(ctx, count * sz * sizeof(GLfloat));
-      GLfloat *fptr = (GLfloat *)buf;
-
-      switch (input->Type) {
-      case GL_BYTE: 
-	 CONVERT(GLbyte, BYTE_TO_FLOAT); 
-	 break;
-      case GL_UNSIGNED_BYTE: 
-         if (input->Format == GL_BGRA) {
-            /* See GL_EXT_vertex_array_bgra */
-            convert_bgra_to_float(input, ptr, fptr, count);
-         }
-         else {
-            CONVERT(GLubyte, UBYTE_TO_FLOAT); 
-         }
-	 break;
-      case GL_SHORT: 
-	 CONVERT(GLshort, SHORT_TO_FLOAT); 
-	 break;
-      case GL_UNSIGNED_SHORT: 
-	 CONVERT(GLushort, USHORT_TO_FLOAT); 
-	 break;
-      case GL_INT: 
-	 CONVERT(GLint, INT_TO_FLOAT); 
-	 break;
-      case GL_UNSIGNED_INT: 
-	 CONVERT(GLuint, UINT_TO_FLOAT); 
-	 break;
-      case GL_DOUBLE: 
-	 CONVERT(GLdouble, (GLfloat)); 
-	 break;
-      case GL_HALF_FLOAT:
-	 convert_half_to_float(input, ptr, fptr, count, sz);
-	 break;
-      case GL_FIXED:
-         convert_fixed_to_float(input, ptr, fptr, count);
-         break;
-      default:
-	 assert(0);
-	 break;
-      }
-
-      ptr = buf;
-      stride = sz * sizeof(GLfloat);
-   }
-
-   VB->AttribPtr[attrib] = &tnl->tmp_inputs[attrib];
-   VB->AttribPtr[attrib]->data = (GLfloat (*)[4])ptr;
-   VB->AttribPtr[attrib]->start = (GLfloat *)ptr;
-   VB->AttribPtr[attrib]->count = count;
-   VB->AttribPtr[attrib]->stride = stride;
-   VB->AttribPtr[attrib]->size = input->Size;
-
-   /* This should die, but so should the whole GLvector4f concept: 
-    */
-   VB->AttribPtr[attrib]->flags = (((1<<input->Size)-1) | 
-				   VEC_NOT_WRITEABLE |
-				   (stride == 4*sizeof(GLfloat) ? 0 : VEC_BAD_STRIDE));
-   
-   VB->AttribPtr[attrib]->storage = NULL;
-}
-
-#define CLIPVERTS  ((6 + MAX_CLIP_PLANES) * 2)
-
-
-static GLboolean *_tnl_import_edgeflag( struct gl_context *ctx,
-					const GLvector4f *input,
-					GLuint count)
-{
-   const GLubyte *ptr = (const GLubyte *)input->data;
-   const GLuint stride = input->stride;
-   GLboolean *space = (GLboolean *)get_space(ctx, count + CLIPVERTS);
-   GLboolean *bptr = space;
-   GLuint i;
-
-   for (i = 0; i < count; i++) {
-      *bptr++ = ((GLfloat *)ptr)[0] == 1.0;
-      ptr += stride;
-   }
-
-   return space;
-}
-
-
-static void bind_inputs( struct gl_context *ctx, 
-			 const struct gl_client_array *inputs[],
-			 GLint count,
-			 struct gl_buffer_object **bo,
-			 GLuint *nr_bo )
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   struct vertex_buffer *VB = &tnl->vb;
-   GLuint i;
-
-   /* Map all the VBOs
-    */
-   for (i = 0; i < VERT_ATTRIB_MAX; i++) {
-      const void *ptr;
-
-      if (inputs[i]->BufferObj->Name) { 
-	 if (!inputs[i]->BufferObj->Pointer) {
-	    bo[*nr_bo] = inputs[i]->BufferObj;
-	    (*nr_bo)++;
-	    ctx->Driver.MapBuffer(ctx, 
-				  GL_ARRAY_BUFFER,
-				  GL_READ_ONLY_ARB,
-				  inputs[i]->BufferObj);
-	    
-	    assert(inputs[i]->BufferObj->Pointer);
-	 }
-	 
-	 ptr = ADD_POINTERS(inputs[i]->BufferObj->Pointer,
-			    inputs[i]->Ptr);
-      }
-      else
-	 ptr = inputs[i]->Ptr;
-
-      /* Just make sure the array is floating point, otherwise convert to
-       * temporary storage.  
-       *
-       * XXX: remove the GLvector4f type at some stage and just use
-       * client arrays.
-       */
-      _tnl_import_array(ctx, i, count, inputs[i], ptr);
-   }
-
-   /* We process only the vertices between min & max index:
-    */
-   VB->Count = count;
-
-   /* These should perhaps be part of _TNL_ATTRIB_* */
-   VB->BackfaceColorPtr = NULL;
-   VB->BackfaceIndexPtr = NULL;
-   VB->BackfaceSecondaryColorPtr = NULL;
-
-   /* Clipping and drawing code still requires this to be a packed
-    * array of ubytes which can be written into.  TODO: Fix and
-    * remove.
-    */
-   if (ctx->Polygon.FrontMode != GL_FILL ||
-       ctx->Polygon.BackMode != GL_FILL)
-   {
-      VB->EdgeFlag = _tnl_import_edgeflag( ctx, 
-					   VB->AttribPtr[_TNL_ATTRIB_EDGEFLAG],
-					   VB->Count );
-   }
-   else {
-      /* the data previously pointed to by EdgeFlag may have been freed */
-      VB->EdgeFlag = NULL;
-   }
-}
-
-
-/* Translate indices to GLuints and store in VB->Elts.
- */
-static void bind_indices( struct gl_context *ctx,
-			  const struct _mesa_index_buffer *ib,
-			  struct gl_buffer_object **bo,
-			  GLuint *nr_bo)
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   struct vertex_buffer *VB = &tnl->vb;
-   GLuint i;
-   void *ptr;
-
-   if (!ib) {
-      VB->Elts = NULL;
-      return;
-   }
-
-   if (ib->obj->Name && !ib->obj->Pointer) {
-      bo[*nr_bo] = ib->obj;
-      (*nr_bo)++;
-      ctx->Driver.MapBuffer(ctx, 
-			    GL_ELEMENT_ARRAY_BUFFER,
-			    GL_READ_ONLY_ARB,
-			    ib->obj);
-
-      assert(ib->obj->Pointer);
-   }
-
-   ptr = ADD_POINTERS(ib->obj->Pointer, ib->ptr);
-
-   if (ib->type == GL_UNSIGNED_INT && VB->Primitive[0].basevertex == 0) {
-      VB->Elts = (GLuint *) ptr;
-   }
-   else {
-      GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint));
-      VB->Elts = elts;
-
-      if (ib->type == GL_UNSIGNED_INT) {
-	 const GLuint *in = (GLuint *)ptr;
-	 for (i = 0; i < ib->count; i++)
-	    *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
-      }
-      else if (ib->type == GL_UNSIGNED_SHORT) {
-	 const GLushort *in = (GLushort *)ptr;
-	 for (i = 0; i < ib->count; i++) 
-	    *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
-      }
-      else {
-	 const GLubyte *in = (GLubyte *)ptr;
-	 for (i = 0; i < ib->count; i++) 
-	    *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
-      }
-   }
-}
-
-static void bind_prims( struct gl_context *ctx,
-			const struct _mesa_prim *prim,
-			GLuint nr_prims )
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   struct vertex_buffer *VB = &tnl->vb;
-
-   VB->Primitive = prim;
-   VB->PrimitiveCount = nr_prims;
-}
-
-static void unmap_vbos( struct gl_context *ctx,
-			struct gl_buffer_object **bo,
-			GLuint nr_bo )
-{
-   GLuint i;
-   for (i = 0; i < nr_bo; i++) { 
-      ctx->Driver.UnmapBuffer(ctx, 
-			      0, /* target -- I don't see why this would be needed */
-			      bo[i]);
-   }
-}
-
-
-void _tnl_vbo_draw_prims(struct gl_context *ctx,
-			 const struct gl_client_array *arrays[],
-			 const struct _mesa_prim *prim,
-			 GLuint nr_prims,
-			 const struct _mesa_index_buffer *ib,
-			 GLboolean index_bounds_valid,
-			 GLuint min_index,
-			 GLuint max_index)
-{
-   if (!index_bounds_valid)
-      vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index);
-
-   _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index);
-}
-
-/* This is the main entrypoint into the slimmed-down software tnl
- * module.  In a regular swtnl driver, this can be plugged straight
- * into the vbo->Driver.DrawPrims() callback.
- */
-void _tnl_draw_prims( struct gl_context *ctx,
-		      const struct gl_client_array *arrays[],
-		      const struct _mesa_prim *prim,
-		      GLuint nr_prims,
-		      const struct _mesa_index_buffer *ib,
-		      GLuint min_index,
-		      GLuint max_index)
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   const GLuint TEST_SPLIT = 0;
-   const GLint max = TEST_SPLIT ? 8 : tnl->vb.Size - MAX_CLIPPED_VERTICES;
-   GLint max_basevertex = prim->basevertex;
-   GLuint i;
-
-   /* Mesa core state should have been validated already */
-   assert(ctx->NewState == 0x0);
-
-   if (!_mesa_check_conditional_render(ctx))
-      return; /* don't draw */
-
-   for (i = 1; i < nr_prims; i++)
-      max_basevertex = MAX2(max_basevertex, prim[i].basevertex);
-
-   if (0)
-   {
-      printf("%s %d..%d\n", __FUNCTION__, min_index, max_index);
-      for (i = 0; i < nr_prims; i++)
-	 printf("prim %d: %s start %d count %d\n", i, 
-		_mesa_lookup_enum_by_nr(prim[i].mode),
-		prim[i].start,
-		prim[i].count);
-   }
-
-   if (min_index) {
-      /* We always translate away calls with min_index != 0. 
-       */
-      vbo_rebase_prims( ctx, arrays, prim, nr_prims, ib, 
-			min_index, max_index,
-			_tnl_vbo_draw_prims );
-      return;
-   }
-   else if ((GLint)max_index + max_basevertex > max) {
-      /* The software TNL pipeline has a fixed amount of storage for
-       * vertices and it is necessary to split incoming drawing commands
-       * if they exceed that limit.
-       */
-      struct split_limits limits;
-      limits.max_verts = max;
-      limits.max_vb_size = ~0;
-      limits.max_indices = ~0;
-
-      /* This will split the buffers one way or another and
-       * recursively call back into this function.
-       */
-      vbo_split_prims( ctx, arrays, prim, nr_prims, ib, 
-		       0, max_index + prim->basevertex,
-		       _tnl_vbo_draw_prims,
-		       &limits );
-   }
-   else {
-      /* May need to map a vertex buffer object for every attribute plus
-       * one for the index buffer.
-       */
-      struct gl_buffer_object *bo[VERT_ATTRIB_MAX + 1];
-      GLuint nr_bo = 0;
-      GLuint inst;
-
-      for (i = 0; i < nr_prims;) {
-	 GLuint this_nr_prims;
-
-	 /* Our SW TNL pipeline doesn't handle basevertex yet, so bind_indices
-	  * will rebase the elements to the basevertex, and we'll only
-	  * emit strings of prims with the same basevertex in one draw call.
-	  */
-	 for (this_nr_prims = 1; i + this_nr_prims < nr_prims;
-	      this_nr_prims++) {
-	    if (prim[i].basevertex != prim[i + this_nr_prims].basevertex)
-	       break;
-	 }
-
-         assert(prim[i].num_instances > 0);
-
-	 /* Binding inputs may imply mapping some vertex buffer objects.
-	  * They will need to be unmapped below.
-	  */
-         for (inst = 0; inst < prim[i].num_instances; inst++) {
-
-            bind_prims(ctx, &prim[i], this_nr_prims);
-            bind_inputs(ctx, arrays, max_index + prim[i].basevertex + 1,
-                        bo, &nr_bo);
-            bind_indices(ctx, ib, bo, &nr_bo);
-
-            tnl->CurInstance = inst;
-            TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx);
-
-            unmap_vbos(ctx, bo, nr_bo);
-            free_space(ctx);
-         }
-
-	 i += this_nr_prims;
-      }
-   }
-}
-
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.1

+ *

+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ *

+ * Authors:

+ *    Keith Whitwell <keith@tungstengraphics.com>

+ */

+

+#include "main/glheader.h"

+#include "main/condrender.h"

+#include "main/context.h"

+#include "main/imports.h"

+#include "main/mtypes.h"

+#include "main/macros.h"

+#include "main/enums.h"

+

+#include "t_context.h"

+#include "tnl.h"

+

+

+

+static GLubyte *get_space(struct gl_context *ctx, GLuint bytes)

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   GLubyte *space = malloc(bytes);

+   

+   tnl->block[tnl->nr_blocks++] = space;

+   return space;

+}

+

+

+static void free_space(struct gl_context *ctx)

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   GLuint i;

+   for (i = 0; i < tnl->nr_blocks; i++)

+      free(tnl->block[i]);

+   tnl->nr_blocks = 0;

+}

+

+

+/* Convert the incoming array to GLfloats.  Understands the

+ * array->Normalized flag and selects the correct conversion method.

+ */

+#define CONVERT( TYPE, MACRO ) do {		\

+   GLuint i, j;					\

+   if (input->Normalized) {			\

+      for (i = 0; i < count; i++) {		\

+	 const TYPE *in = (TYPE *)ptr;		\

+	 for (j = 0; j < sz; j++) {		\

+	    *fptr++ = MACRO(*in);		\

+	    in++;				\

+	 }					\

+	 ptr += input->StrideB;			\

+      }						\

+   } else {					\

+      for (i = 0; i < count; i++) {		\

+	 const TYPE *in = (TYPE *)ptr;		\

+	 for (j = 0; j < sz; j++) {		\

+	    *fptr++ = (GLfloat)(*in);		\

+	    in++;				\

+	 }					\

+	 ptr += input->StrideB;			\

+      }						\

+   }						\

+} while (0)

+

+

+/**

+ * Convert array of BGRA/GLubyte[4] values to RGBA/float[4]

+ * \param ptr  input/ubyte array

+ * \param fptr  output/float array

+ */

+static void

+convert_bgra_to_float(const struct gl_client_array *input,

+                      const GLubyte *ptr, GLfloat *fptr,

+                      GLuint count )

+{

+   GLuint i;

+   assert(input->Normalized);

+   assert(input->Size == 4);

+   for (i = 0; i < count; i++) {

+      const GLubyte *in = (GLubyte *) ptr;  /* in is in BGRA order */

+      *fptr++ = UBYTE_TO_FLOAT(in[2]);  /* red */

+      *fptr++ = UBYTE_TO_FLOAT(in[1]);  /* green */

+      *fptr++ = UBYTE_TO_FLOAT(in[0]);  /* blue */

+      *fptr++ = UBYTE_TO_FLOAT(in[3]);  /* alpha */

+      ptr += input->StrideB;

+   }

+}

+

+static void

+convert_half_to_float(const struct gl_client_array *input,

+		      const GLubyte *ptr, GLfloat *fptr,

+		      GLuint count, GLuint sz)

+{

+   GLuint i, j;

+

+   for (i = 0; i < count; i++) {

+      GLhalfARB *in = (GLhalfARB *)ptr;

+

+      for (j = 0; j < sz; j++) {

+	 *fptr++ = _mesa_half_to_float(in[j]);

+      }

+      ptr += input->StrideB;

+   }

+}

+

+/**

+ * \brief Convert fixed-point to floating-point.

+ *

+ * In OpenGL, a fixed-point number is a "signed 2's complement 16.16 scaled

+ * integer" (Table 2.2 of the OpenGL ES 2.0 spec).

+ *

+ * If the buffer has the \c normalized flag set, the formula

+ *     \code normalize(x) := (2*x + 1) / (2^16 - 1) \endcode

+ * is used to map the fixed-point numbers into the range [-1, 1].

+ */

+static void

+convert_fixed_to_float(const struct gl_client_array *input,

+                       const GLubyte *ptr, GLfloat *fptr,

+                       GLuint count)

+{

+   GLuint i, j;

+   const GLint size = input->Size;

+

+   if (input->Normalized) {

+      for (i = 0; i < count; ++i) {

+         const GLfixed *in = (GLfixed *) ptr;

+         for (j = 0; j < size; ++j) {

+            *fptr++ = (GLfloat) (2 * in[j] + 1) / (GLfloat) ((1 << 16) - 1);

+         }

+         ptr += input->StrideB;

+      }

+   } else {

+      for (i = 0; i < count; ++i) {

+         const GLfixed *in = (GLfixed *) ptr;

+         for (j = 0; j < size; ++j) {

+            *fptr++ = in[j] / (GLfloat) (1 << 16);

+         }

+         ptr += input->StrideB;

+      }

+   }

+}

+

+/* Adjust pointer to point at first requested element, convert to

+ * floating point, populate VB->AttribPtr[].

+ */

+static void _tnl_import_array( struct gl_context *ctx,

+			       GLuint attrib,

+			       GLuint count,

+			       const struct gl_client_array *input,

+			       const GLubyte *ptr )

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   struct vertex_buffer *VB = &tnl->vb;

+   GLuint stride = input->StrideB;

+

+   if (input->Type != GL_FLOAT) {

+      const GLuint sz = input->Size;

+      GLubyte *buf = get_space(ctx, count * sz * sizeof(GLfloat));

+      GLfloat *fptr = (GLfloat *)buf;

+

+      switch (input->Type) {

+      case GL_BYTE: 

+	 CONVERT(GLbyte, BYTE_TO_FLOAT); 

+	 break;

+      case GL_UNSIGNED_BYTE: 

+         if (input->Format == GL_BGRA) {

+            /* See GL_EXT_vertex_array_bgra */

+            convert_bgra_to_float(input, ptr, fptr, count);

+         }

+         else {

+            CONVERT(GLubyte, UBYTE_TO_FLOAT); 

+         }

+	 break;

+      case GL_SHORT: 

+	 CONVERT(GLshort, SHORT_TO_FLOAT); 

+	 break;

+      case GL_UNSIGNED_SHORT: 

+	 CONVERT(GLushort, USHORT_TO_FLOAT); 

+	 break;

+      case GL_INT: 

+	 CONVERT(GLint, INT_TO_FLOAT); 

+	 break;

+      case GL_UNSIGNED_INT: 

+	 CONVERT(GLuint, UINT_TO_FLOAT); 

+	 break;

+      case GL_DOUBLE: 

+	 CONVERT(GLdouble, (GLfloat)); 

+	 break;

+      case GL_HALF_FLOAT:

+	 convert_half_to_float(input, ptr, fptr, count, sz);

+	 break;

+      case GL_FIXED:

+         convert_fixed_to_float(input, ptr, fptr, count);

+         break;

+      default:

+	 assert(0);

+	 break;

+      }

+

+      ptr = buf;

+      stride = sz * sizeof(GLfloat);

+   }

+

+   VB->AttribPtr[attrib] = &tnl->tmp_inputs[attrib];

+   VB->AttribPtr[attrib]->data = (GLfloat (*)[4])ptr;

+   VB->AttribPtr[attrib]->start = (GLfloat *)ptr;

+   VB->AttribPtr[attrib]->count = count;

+   VB->AttribPtr[attrib]->stride = stride;

+   VB->AttribPtr[attrib]->size = input->Size;

+

+   /* This should die, but so should the whole GLvector4f concept: 

+    */

+   VB->AttribPtr[attrib]->flags = (((1<<input->Size)-1) | 

+				   VEC_NOT_WRITEABLE |

+				   (stride == 4*sizeof(GLfloat) ? 0 : VEC_BAD_STRIDE));

+   

+   VB->AttribPtr[attrib]->storage = NULL;

+}

+

+#define CLIPVERTS  ((6 + MAX_CLIP_PLANES) * 2)

+

+

+static GLboolean *_tnl_import_edgeflag( struct gl_context *ctx,

+					const GLvector4f *input,

+					GLuint count)

+{

+   const GLubyte *ptr = (const GLubyte *)input->data;

+   const GLuint stride = input->stride;

+   GLboolean *space = (GLboolean *)get_space(ctx, count + CLIPVERTS);

+   GLboolean *bptr = space;

+   GLuint i;

+

+   for (i = 0; i < count; i++) {

+      *bptr++ = ((GLfloat *)ptr)[0] == 1.0;

+      ptr += stride;

+   }

+

+   return space;

+}

+

+

+static void bind_inputs( struct gl_context *ctx, 

+			 const struct gl_client_array *inputs[],

+			 GLint count,

+			 struct gl_buffer_object **bo,

+			 GLuint *nr_bo )

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   struct vertex_buffer *VB = &tnl->vb;

+   GLuint i;

+

+   /* Map all the VBOs

+    */

+   for (i = 0; i < VERT_ATTRIB_MAX; i++) {

+      const void *ptr;

+

+      if (inputs[i]->BufferObj->Name) { 

+	 if (!inputs[i]->BufferObj->Pointer) {

+	    bo[*nr_bo] = inputs[i]->BufferObj;

+	    (*nr_bo)++;

+	    ctx->Driver.MapBuffer(ctx, 

+				  GL_ARRAY_BUFFER,

+				  GL_READ_ONLY_ARB,

+				  inputs[i]->BufferObj);

+	    

+	    assert(inputs[i]->BufferObj->Pointer);

+	 }

+	 

+	 ptr = ADD_POINTERS(inputs[i]->BufferObj->Pointer,

+			    inputs[i]->Ptr);

+      }

+      else

+	 ptr = inputs[i]->Ptr;

+

+      /* Just make sure the array is floating point, otherwise convert to

+       * temporary storage.  

+       *

+       * XXX: remove the GLvector4f type at some stage and just use

+       * client arrays.

+       */

+      _tnl_import_array(ctx, i, count, inputs[i], ptr);

+   }

+

+   /* We process only the vertices between min & max index:

+    */

+   VB->Count = count;

+

+   /* These should perhaps be part of _TNL_ATTRIB_* */

+   VB->BackfaceColorPtr = NULL;

+   VB->BackfaceIndexPtr = NULL;

+   VB->BackfaceSecondaryColorPtr = NULL;

+

+   /* Clipping and drawing code still requires this to be a packed

+    * array of ubytes which can be written into.  TODO: Fix and

+    * remove.

+    */

+   if (ctx->Polygon.FrontMode != GL_FILL ||

+       ctx->Polygon.BackMode != GL_FILL)

+   {

+      VB->EdgeFlag = _tnl_import_edgeflag( ctx, 

+					   VB->AttribPtr[_TNL_ATTRIB_EDGEFLAG],

+					   VB->Count );

+   }

+   else {

+      /* the data previously pointed to by EdgeFlag may have been freed */

+      VB->EdgeFlag = NULL;

+   }

+}

+

+

+/* Translate indices to GLuints and store in VB->Elts.

+ */

+static void bind_indices( struct gl_context *ctx,

+			  const struct _mesa_index_buffer *ib,

+			  struct gl_buffer_object **bo,

+			  GLuint *nr_bo)

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   struct vertex_buffer *VB = &tnl->vb;

+   GLuint i;

+   void *ptr;

+

+   if (!ib) {

+      VB->Elts = NULL;

+      return;

+   }

+

+   if (ib->obj->Name && !ib->obj->Pointer) {

+      bo[*nr_bo] = ib->obj;

+      (*nr_bo)++;

+      ctx->Driver.MapBuffer(ctx, 

+			    GL_ELEMENT_ARRAY_BUFFER,

+			    GL_READ_ONLY_ARB,

+			    ib->obj);

+

+      assert(ib->obj->Pointer);

+   }

+

+   ptr = ADD_POINTERS(ib->obj->Pointer, ib->ptr);

+

+   if (ib->type == GL_UNSIGNED_INT && VB->Primitive[0].basevertex == 0) {

+      VB->Elts = (GLuint *) ptr;

+   }

+   else {

+      GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint));

+      VB->Elts = elts;

+

+      if (ib->type == GL_UNSIGNED_INT) {

+	 const GLuint *in = (GLuint *)ptr;

+	 for (i = 0; i < ib->count; i++)

+	    *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;

+      }

+      else if (ib->type == GL_UNSIGNED_SHORT) {

+	 const GLushort *in = (GLushort *)ptr;

+	 for (i = 0; i < ib->count; i++) 

+	    *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;

+      }

+      else {

+	 const GLubyte *in = (GLubyte *)ptr;

+	 for (i = 0; i < ib->count; i++) 

+	    *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;

+      }

+   }

+}

+

+static void bind_prims( struct gl_context *ctx,

+			const struct _mesa_prim *prim,

+			GLuint nr_prims )

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   struct vertex_buffer *VB = &tnl->vb;

+

+   VB->Primitive = prim;

+   VB->PrimitiveCount = nr_prims;

+}

+

+static void unmap_vbos( struct gl_context *ctx,

+			struct gl_buffer_object **bo,

+			GLuint nr_bo )

+{

+   GLuint i;

+   for (i = 0; i < nr_bo; i++) { 

+      ctx->Driver.UnmapBuffer(ctx, 

+			      0, /* target -- I don't see why this would be needed */

+			      bo[i]);

+   }

+}

+

+

+void _tnl_vbo_draw_prims(struct gl_context *ctx,

+			 const struct gl_client_array *arrays[],

+			 const struct _mesa_prim *prim,

+			 GLuint nr_prims,

+			 const struct _mesa_index_buffer *ib,

+			 GLboolean index_bounds_valid,

+			 GLuint min_index,

+			 GLuint max_index)

+{

+   if (!index_bounds_valid)

+      vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index);

+

+   _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index);

+}

+

+/* This is the main entrypoint into the slimmed-down software tnl

+ * module.  In a regular swtnl driver, this can be plugged straight

+ * into the vbo->Driver.DrawPrims() callback.

+ */

+void _tnl_draw_prims( struct gl_context *ctx,

+		      const struct gl_client_array *arrays[],

+		      const struct _mesa_prim *prim,

+		      GLuint nr_prims,

+		      const struct _mesa_index_buffer *ib,

+		      GLuint min_index,

+		      GLuint max_index)

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   const GLuint TEST_SPLIT = 0;

+   const GLint max = TEST_SPLIT ? 8 : tnl->vb.Size - MAX_CLIPPED_VERTICES;

+   GLint max_basevertex = prim->basevertex;

+   GLuint i;

+

+   /* Mesa core state should have been validated already */

+   assert(ctx->NewState == 0x0);

+

+   if (!_mesa_check_conditional_render(ctx))

+      return; /* don't draw */

+

+   for (i = 1; i < nr_prims; i++)

+      max_basevertex = MAX2(max_basevertex, prim[i].basevertex);

+

+   if (0)

+   {

+      printf("%s %d..%d\n", __FUNCTION__, min_index, max_index);

+      for (i = 0; i < nr_prims; i++)

+	 printf("prim %d: %s start %d count %d\n", i, 

+		_mesa_lookup_enum_by_nr(prim[i].mode),

+		prim[i].start,

+		prim[i].count);

+   }

+

+   if (min_index) {

+      /* We always translate away calls with min_index != 0. 

+       */

+      vbo_rebase_prims( ctx, arrays, prim, nr_prims, ib, 

+			min_index, max_index,

+			_tnl_vbo_draw_prims );

+      return;

+   }

+   else if ((GLint)max_index + max_basevertex > max) {

+      /* The software TNL pipeline has a fixed amount of storage for

+       * vertices and it is necessary to split incoming drawing commands

+       * if they exceed that limit.

+       */

+      struct split_limits limits;

+      limits.max_verts = max;

+      limits.max_vb_size = ~0;

+      limits.max_indices = ~0;

+

+      /* This will split the buffers one way or another and

+       * recursively call back into this function.

+       */

+      vbo_split_prims( ctx, arrays, prim, nr_prims, ib, 

+		       0, max_index + prim->basevertex,

+		       _tnl_vbo_draw_prims,

+		       &limits );

+   }

+   else {

+      /* May need to map a vertex buffer object for every attribute plus

+       * one for the index buffer.

+       */

+      struct gl_buffer_object *bo[VERT_ATTRIB_MAX + 1];

+      GLuint nr_bo = 0;

+      GLuint inst;

+

+      for (i = 0; i < nr_prims;) {

+	 GLuint this_nr_prims;

+

+	 /* Our SW TNL pipeline doesn't handle basevertex yet, so bind_indices

+	  * will rebase the elements to the basevertex, and we'll only

+	  * emit strings of prims with the same basevertex in one draw call.

+	  */

+	 for (this_nr_prims = 1; i + this_nr_prims < nr_prims;

+	      this_nr_prims++) {

+	    if (prim[i].basevertex != prim[i + this_nr_prims].basevertex)

+	       break;

+	 }

+

+         assert(prim[i].num_instances > 0);

+

+	 /* Binding inputs may imply mapping some vertex buffer objects.

+	  * They will need to be unmapped below.

+	  */

+         for (inst = 0; inst < prim[i].num_instances; inst++) {

+

+            bind_prims(ctx, &prim[i], this_nr_prims);

+            bind_inputs(ctx, arrays, max_index + prim[i].basevertex + 1,

+                        bo, &nr_bo);

+            bind_indices(ctx, ib, bo, &nr_bo);

+

+            tnl->CurInstance = inst;

+            TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx);

+

+            unmap_vbos(ctx, bo, nr_bo);

+            free_space(ctx);

+         }

+

+	 i += this_nr_prims;

+      }

+   }

+}

+

diff --git a/mesalib/src/mesa/vbo/vbo_exec_array.c b/mesalib/src/mesa/vbo/vbo_exec_array.c
index 6749541b7..4304985aa 100644
--- a/mesalib/src/mesa/vbo/vbo_exec_array.c
+++ b/mesalib/src/mesa/vbo/vbo_exec_array.c
@@ -1,1282 +1,1282 @@
-/**************************************************************************
- * 
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-#include "main/glheader.h"
-#include "main/context.h"
-#include "main/state.h"
-#include "main/api_validate.h"
-#include "main/varray.h"
-#include "main/bufferobj.h"
-#include "main/enums.h"
-#include "main/macros.h"
-
-#include "vbo_context.h"
-
-
-/**
- * Compute min and max elements by scanning the index buffer for
- * glDraw[Range]Elements() calls.
- * If primitive restart is enabled, we need to ignore restart
- * indexes when computing min/max.
- */
-void
-vbo_get_minmax_index(struct gl_context *ctx,
-		     const struct _mesa_prim *prim,
-		     const struct _mesa_index_buffer *ib,
-		     GLuint *min_index, GLuint *max_index)
-{
-   const GLboolean restart = ctx->Array.PrimitiveRestart;
-   const GLuint restartIndex = ctx->Array.RestartIndex;
-   const GLuint count = prim->count;
-   const void *indices;
-   GLuint i;
-
-   if (_mesa_is_bufferobj(ib->obj)) {
-      const GLvoid *map =
-         ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,
-                               GL_READ_ONLY, ib->obj);
-      indices = ADD_POINTERS(map, ib->ptr);
-   } else {
-      indices = ib->ptr;
-   }
-
-   switch (ib->type) {
-   case GL_UNSIGNED_INT: {
-      const GLuint *ui_indices = (const GLuint *)indices;
-      GLuint max_ui = 0;
-      GLuint min_ui = ~0U;
-      if (restart) {
-         for (i = 0; i < count; i++) {
-            if (ui_indices[i] != restartIndex) {
-               if (ui_indices[i] > max_ui) max_ui = ui_indices[i];
-               if (ui_indices[i] < min_ui) min_ui = ui_indices[i];
-            }
-         }
-      }
-      else {
-         for (i = 0; i < count; i++) {
-            if (ui_indices[i] > max_ui) max_ui = ui_indices[i];
-            if (ui_indices[i] < min_ui) min_ui = ui_indices[i];
-         }
-      }
-      *min_index = min_ui;
-      *max_index = max_ui;
-      break;
-   }
-   case GL_UNSIGNED_SHORT: {
-      const GLushort *us_indices = (const GLushort *)indices;
-      GLuint max_us = 0;
-      GLuint min_us = ~0U;
-      if (restart) {
-         for (i = 0; i < count; i++) {
-            if (us_indices[i] != restartIndex) {
-               if (us_indices[i] > max_us) max_us = us_indices[i];
-               if (us_indices[i] < min_us) min_us = us_indices[i];
-            }
-         }
-      }
-      else {
-         for (i = 0; i < count; i++) {
-            if (us_indices[i] > max_us) max_us = us_indices[i];
-            if (us_indices[i] < min_us) min_us = us_indices[i];
-         }
-      }
-      *min_index = min_us;
-      *max_index = max_us;
-      break;
-   }
-   case GL_UNSIGNED_BYTE: {
-      const GLubyte *ub_indices = (const GLubyte *)indices;
-      GLuint max_ub = 0;
-      GLuint min_ub = ~0U;
-      if (restart) {
-         for (i = 0; i < count; i++) {
-            if (ub_indices[i] != restartIndex) {
-               if (ub_indices[i] > max_ub) max_ub = ub_indices[i];
-               if (ub_indices[i] < min_ub) min_ub = ub_indices[i];
-            }
-         }
-      }
-      else {
-         for (i = 0; i < count; i++) {
-            if (ub_indices[i] > max_ub) max_ub = ub_indices[i];
-            if (ub_indices[i] < min_ub) min_ub = ub_indices[i];
-         }
-      }
-      *min_index = min_ub;
-      *max_index = max_ub;
-      break;
-   }
-   default:
-      assert(0);
-      break;
-   }
-
-   if (_mesa_is_bufferobj(ib->obj)) {
-      ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, ib->obj);
-   }
-}
-
-
-/**
- * Check that element 'j' of the array has reasonable data.
- * Map VBO if needed.
- * For debugging purposes; not normally used.
- */
-static void
-check_array_data(struct gl_context *ctx, struct gl_client_array *array,
-                 GLuint attrib, GLuint j)
-{
-   if (array->Enabled) {
-      const void *data = array->Ptr;
-      if (_mesa_is_bufferobj(array->BufferObj)) {
-         if (!array->BufferObj->Pointer) {
-            /* need to map now */
-            array->BufferObj->Pointer =
-               ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB,
-                                     GL_READ_ONLY, array->BufferObj);
-         }
-         data = ADD_POINTERS(data, array->BufferObj->Pointer);
-      }
-      switch (array->Type) {
-      case GL_FLOAT:
-         {
-            GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j);
-            GLint k;
-            for (k = 0; k < array->Size; k++) {
-               if (IS_INF_OR_NAN(f[k]) ||
-                   f[k] >= 1.0e20 || f[k] <= -1.0e10) {
-                  printf("Bad array data:\n");
-                  printf("  Element[%u].%u = %f\n", j, k, f[k]);
-                  printf("  Array %u at %p\n", attrib, (void* ) array);
-                  printf("  Type 0x%x, Size %d, Stride %d\n",
-			 array->Type, array->Size, array->Stride);
-                  printf("  Address/offset %p in Buffer Object %u\n",
-			 array->Ptr, array->BufferObj->Name);
-                  f[k] = 1.0; /* XXX replace the bad value! */
-               }
-               /*assert(!IS_INF_OR_NAN(f[k]));*/
-            }
-         }
-         break;
-      default:
-         ;
-      }
-   }
-}
-
-
-/**
- * Unmap the buffer object referenced by given array, if mapped.
- */
-static void
-unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array)
-{
-   if (array->Enabled &&
-       _mesa_is_bufferobj(array->BufferObj) &&
-       _mesa_bufferobj_mapped(array->BufferObj)) {
-      ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, array->BufferObj);
-   }
-}
-
-
-/**
- * Examine the array's data for NaNs, etc.
- * For debug purposes; not normally used.
- */
-static void
-check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType,
-                         const void *elements, GLint basevertex)
-{
-   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
-   const void *elemMap;
-   GLint i, k;
-
-   if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
-      elemMap = ctx->Driver.MapBuffer(ctx,
-                                      GL_ELEMENT_ARRAY_BUFFER_ARB,
-                                      GL_READ_ONLY,
-                                      ctx->Array.ElementArrayBufferObj);
-      elements = ADD_POINTERS(elements, elemMap);
-   }
-
-   for (i = 0; i < count; i++) {
-      GLuint j;
-
-      /* j = element[i] */
-      switch (elemType) {
-      case GL_UNSIGNED_BYTE:
-         j = ((const GLubyte *) elements)[i];
-         break;
-      case GL_UNSIGNED_SHORT:
-         j = ((const GLushort *) elements)[i];
-         break;
-      case GL_UNSIGNED_INT:
-         j = ((const GLuint *) elements)[i];
-         break;
-      default:
-         assert(0);
-      }
-
-      /* check element j of each enabled array */
-      check_array_data(ctx, &arrayObj->Vertex, VERT_ATTRIB_POS, j);
-      check_array_data(ctx, &arrayObj->Normal, VERT_ATTRIB_NORMAL, j);
-      check_array_data(ctx, &arrayObj->Color, VERT_ATTRIB_COLOR0, j);
-      check_array_data(ctx, &arrayObj->SecondaryColor, VERT_ATTRIB_COLOR1, j);
-      for (k = 0; k < Elements(arrayObj->TexCoord); k++) {
-         check_array_data(ctx, &arrayObj->TexCoord[k], VERT_ATTRIB_TEX0 + k, j);
-      }
-      for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) {
-         check_array_data(ctx, &arrayObj->VertexAttrib[k],
-                          VERT_ATTRIB_GENERIC0 + k, j);
-      }
-   }
-
-   if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
-      ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,
-			      ctx->Array.ElementArrayBufferObj);
-   }
-
-   unmap_array_buffer(ctx, &arrayObj->Vertex);
-   unmap_array_buffer(ctx, &arrayObj->Normal);
-   unmap_array_buffer(ctx, &arrayObj->Color);
-   for (k = 0; k < Elements(arrayObj->TexCoord); k++) {
-      unmap_array_buffer(ctx, &arrayObj->TexCoord[k]);
-   }
-   for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) {
-      unmap_array_buffer(ctx, &arrayObj->VertexAttrib[k]);
-   }
-}
-
-
-/**
- * Check array data, looking for NaNs, etc.
- */
-static void
-check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count)
-{
-   /* TO DO */
-}
-
-
-/**
- * Print info/data for glDrawArrays(), for debugging.
- */
-static void
-print_draw_arrays(struct gl_context *ctx,
-                  GLenum mode, GLint start, GLsizei count)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   int i;
-
-   printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
-	  mode, start, count);
-
-   for (i = 0; i < 32; i++) {
-      GLuint bufName = exec->array.inputs[i]->BufferObj->Name;
-      GLint stride = exec->array.inputs[i]->Stride;
-      printf("attr %2d: size %d stride %d  enabled %d  "
-	     "ptr %p  Bufobj %u\n",
-	     i,
-	     exec->array.inputs[i]->Size,
-	     stride,
-	     /*exec->array.inputs[i]->Enabled,*/
-	     exec->array.legacy_array[i]->Enabled,
-	     exec->array.inputs[i]->Ptr,
-	     bufName);
-
-      if (bufName) {
-         struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, bufName);
-         GLubyte *p = ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB,
-                                            GL_READ_ONLY_ARB, buf);
-         int offset = (int) (GLintptr) exec->array.inputs[i]->Ptr;
-         float *f = (float *) (p + offset);
-         int *k = (int *) f;
-         int i;
-         int n = (count * stride) / 4;
-         if (n > 32)
-            n = 32;
-         printf("  Data at offset %d:\n", offset);
-         for (i = 0; i < n; i++) {
-            printf("    float[%d] = 0x%08x %f\n", i, k[i], f[i]);
-         }
-         ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, buf);
-      }
-   }
-}
-
-
-/**
- * Bind the VBO executor to the current vertex array object prior
- * to drawing.
- *
- * Just translate the arrayobj into a sane layout.
- */
-static void
-bind_array_obj(struct gl_context *ctx)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
-   GLuint i;
-
-   /* TODO: Fix the ArrayObj struct to keep legacy arrays in an array
-    * rather than as individual named arrays.  Then this function can
-    * go away.
-    */
-   exec->array.legacy_array[VERT_ATTRIB_POS] = &arrayObj->Vertex;
-   exec->array.legacy_array[VERT_ATTRIB_WEIGHT] = &arrayObj->Weight;
-   exec->array.legacy_array[VERT_ATTRIB_NORMAL] = &arrayObj->Normal;
-   exec->array.legacy_array[VERT_ATTRIB_COLOR0] = &arrayObj->Color;
-   exec->array.legacy_array[VERT_ATTRIB_COLOR1] = &arrayObj->SecondaryColor;
-   exec->array.legacy_array[VERT_ATTRIB_FOG] = &arrayObj->FogCoord;
-   exec->array.legacy_array[VERT_ATTRIB_COLOR_INDEX] = &arrayObj->Index;
-   if (arrayObj->PointSize.Enabled) {
-      /* this aliases COLOR_INDEX */
-      exec->array.legacy_array[VERT_ATTRIB_POINT_SIZE] = &arrayObj->PointSize;
-   }
-   exec->array.legacy_array[VERT_ATTRIB_EDGEFLAG] = &arrayObj->EdgeFlag;
-
-   for (i = 0; i < Elements(arrayObj->TexCoord); i++)
-      exec->array.legacy_array[VERT_ATTRIB_TEX0 + i] = &arrayObj->TexCoord[i];
-
-   for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) {
-      assert(i < Elements(exec->array.generic_array));
-      exec->array.generic_array[i] = &arrayObj->VertexAttrib[i];
-   }
-   
-   exec->array.array_obj = arrayObj->Name;
-}
-
-
-/**
- * Set the vbo->exec->inputs[] pointers to point to the enabled
- * vertex arrays.  This depends on the current vertex program/shader
- * being executed because of whether or not generic vertex arrays
- * alias the conventional vertex arrays.
- * For arrays that aren't enabled, we set the input[attrib] pointer
- * to point at a zero-stride current value "array".
- */
-static void
-recalculate_input_bindings(struct gl_context *ctx)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   const struct gl_client_array **inputs = &exec->array.inputs[0];
-   GLbitfield const_inputs = 0x0;
-   GLuint i;
-
-   exec->array.program_mode = get_program_mode(ctx);
-   exec->array.enabled_flags = ctx->Array.ArrayObj->_Enabled;
-
-   switch (exec->array.program_mode) {
-   case VP_NONE:
-      /* When no vertex program is active (or the vertex program is generated
-       * from fixed-function state).  We put the material values into the
-       * generic slots.  This is the only situation where material values
-       * are available as per-vertex attributes.
-       */
-      for (i = 0; i <= VERT_ATTRIB_TEX7; i++) {
-	 if (exec->array.legacy_array[i]->Enabled)
-	    inputs[i] = exec->array.legacy_array[i];
-	 else {
-	    inputs[i] = &vbo->legacy_currval[i];
-            const_inputs |= 1 << i;
-         }
-      }
-
-      for (i = 0; i < MAT_ATTRIB_MAX; i++) {
-	 inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->mat_currval[i];
-         const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i);
-      }
-
-      /* Could use just about anything, just to fill in the empty
-       * slots:
-       */
-      for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_MAX - VERT_ATTRIB_GENERIC0; i++) {
-	 inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i];
-         const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i);
-      }
-      break;
-
-   case VP_NV:
-      /* NV_vertex_program - attribute arrays alias and override
-       * conventional, legacy arrays.  No materials, and the generic
-       * slots are vacant.
-       */
-      for (i = 0; i <= VERT_ATTRIB_TEX7; i++) {
-	 if (exec->array.generic_array[i]->Enabled)
-	    inputs[i] = exec->array.generic_array[i];
-	 else if (exec->array.legacy_array[i]->Enabled)
-	    inputs[i] = exec->array.legacy_array[i];
-	 else {
-	    inputs[i] = &vbo->legacy_currval[i];
-            const_inputs |= 1 << i;
-         }
-      }
-
-      /* Could use just about anything, just to fill in the empty
-       * slots:
-       */
-      for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) {
-	 inputs[i] = &vbo->generic_currval[i - VERT_ATTRIB_GENERIC0];
-         const_inputs |= 1 << i;
-      }
-      break;
-
-   case VP_ARB:
-      /* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0]
-       * attribute array aliases and overrides the legacy position array.  
-       *
-       * Otherwise, legacy attributes available in the legacy slots,
-       * generic attributes in the generic slots and materials are not
-       * available as per-vertex attributes.
-       */
-      if (exec->array.generic_array[0]->Enabled)
-	 inputs[0] = exec->array.generic_array[0];
-      else if (exec->array.legacy_array[0]->Enabled)
-	 inputs[0] = exec->array.legacy_array[0];
-      else {
-	 inputs[0] = &vbo->legacy_currval[0];
-         const_inputs |= 1 << 0;
-      }
-
-      for (i = 1; i <= VERT_ATTRIB_TEX7; i++) {
-	 if (exec->array.legacy_array[i]->Enabled)
-	    inputs[i] = exec->array.legacy_array[i];
-	 else {
-	    inputs[i] = &vbo->legacy_currval[i];
-            const_inputs |= 1 << i;
-         }
-      }
-
-      for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) {
-	 if (exec->array.generic_array[i]->Enabled)
-	    inputs[VERT_ATTRIB_GENERIC0 + i] = exec->array.generic_array[i];
-	 else {
-	    inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i];
-            const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i);
-         }
-
-      }
-      break;
-   }
-
-   _mesa_set_varying_vp_inputs( ctx, ~const_inputs );
-}
-
-
-/**
- * Examine the enabled vertex arrays to set the exec->array.inputs[] values.
- * These will point to the arrays to actually use for drawing.  Some will
- * be user-provided arrays, other will be zero-stride const-valued arrays.
- * Note that this might set the _NEW_ARRAY dirty flag so state validation
- * must be done after this call.
- */
-static void
-bind_arrays(struct gl_context *ctx)
-{
-   if (!ctx->Array.RebindArrays) {
-      return;
-   }
-
-   bind_array_obj(ctx);
-   recalculate_input_bindings(ctx);
-   ctx->Array.RebindArrays = GL_FALSE;
-}
-
-
-/**
- * Helper function called by the other DrawArrays() functions below.
- * This is where we handle primitive restart for drawing non-indexed
- * arrays.  If primitive restart is enabled, it typically means
- * splitting one DrawArrays() into two.
- */
-static void
-vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,
-                GLsizei count, GLuint numInstances)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   struct _mesa_prim prim[2];
-
-   bind_arrays(ctx);
-
-   /* Again... because we may have changed the bitmask of per-vertex varying
-    * attributes.  If we regenerate the fixed-function vertex program now
-    * we may be able to prune down the number of vertex attributes which we
-    * need in the shader.
-    */
-   if (ctx->NewState)
-      _mesa_update_state(ctx);
-
-   prim[0].begin = 1;
-   prim[0].end = 1;
-   prim[0].weak = 0;
-   prim[0].pad = 0;
-   prim[0].mode = mode;
-   prim[0].start = 0; /* filled in below */
-   prim[0].count = 0; /* filled in below */
-   prim[0].indexed = 0;
-   prim[0].basevertex = 0;
-   prim[0].num_instances = numInstances;
-
-   /* Implement the primitive restart index */
-   if (ctx->Array.PrimitiveRestart && ctx->Array.RestartIndex < count) {
-      GLuint primCount = 0;
-
-      if (ctx->Array.RestartIndex == start) {
-         /* special case: RestartIndex at beginning */
-         if (count > 1) {
-            prim[0].start = start + 1;
-            prim[0].count = count - 1;
-            primCount = 1;
-         }
-      }
-      else if (ctx->Array.RestartIndex == start + count - 1) {
-         /* special case: RestartIndex at end */
-         if (count > 1) {
-            prim[0].start = start;
-            prim[0].count = count - 1;
-            primCount = 1;
-         }
-      }
-      else {
-         /* general case: RestartIndex in middle, split into two prims */
-         prim[0].start = start;
-         prim[0].count = ctx->Array.RestartIndex - start;
-
-         prim[1] = prim[0];
-         prim[1].start = ctx->Array.RestartIndex + 1;
-         prim[1].count = count - prim[1].start;
-
-         primCount = 2;
-      }
-
-      if (primCount > 0) {
-         /* draw one or two prims */
-         vbo->draw_prims(ctx, exec->array.inputs, prim, primCount, NULL,
-                         GL_TRUE, start, start + count - 1);
-      }
-   }
-   else {
-      /* no prim restart */
-      prim[0].start = start;
-      prim[0].count = count;
-
-      vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL,
-                      GL_TRUE, start, start + count - 1);
-   }
-}
-
-
-
-/**
- * Called from glDrawArrays when in immediate mode (not display list mode).
- */
-static void GLAPIENTRY
-vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n",
-                  _mesa_lookup_enum_by_nr(mode), start, count);
-
-   if (!_mesa_validate_DrawArrays( ctx, mode, start, count ))
-      return;
-
-   FLUSH_CURRENT( ctx, 0 );
-
-   if (!_mesa_valid_to_render(ctx, "glDrawArrays")) {
-      return;
-   }
-
-   if (0)
-      check_draw_arrays_data(ctx, start, count);
-
-   vbo_draw_arrays(ctx, mode, start, count, 1);
-
-   if (0)
-      print_draw_arrays(ctx, mode, start, count);
-}
-
-
-/**
- * Called from glDrawArraysInstanced when in immediate mode (not
- * display list mode).
- */
-static void GLAPIENTRY
-vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count,
-                             GLsizei numInstances)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
-                  _mesa_lookup_enum_by_nr(mode), start, count, numInstances);
-
-   if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, numInstances))
-      return;
-
-   FLUSH_CURRENT( ctx, 0 );
-
-   if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) {
-      return;
-   }
-
-   if (0)
-      check_draw_arrays_data(ctx, start, count);
-
-   vbo_draw_arrays(ctx, mode, start, count, numInstances);
-
-   if (0)
-      print_draw_arrays(ctx, mode, start, count);
-}
-
-
-/**
- * Map GL_ELEMENT_ARRAY_BUFFER and print contents.
- * For debugging.
- */
-static void
-dump_element_buffer(struct gl_context *ctx, GLenum type)
-{
-   const GLvoid *map = ctx->Driver.MapBuffer(ctx,
-                                             GL_ELEMENT_ARRAY_BUFFER_ARB,
-                                             GL_READ_ONLY,
-                                             ctx->Array.ElementArrayBufferObj);
-   switch (type) {
-   case GL_UNSIGNED_BYTE:
-      {
-         const GLubyte *us = (const GLubyte *) map;
-         GLint i;
-         for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size; i++) {
-            printf("%02x ", us[i]);
-            if (i % 32 == 31)
-               printf("\n");
-         }
-         printf("\n");
-      }
-      break;
-   case GL_UNSIGNED_SHORT:
-      {
-         const GLushort *us = (const GLushort *) map;
-         GLint i;
-         for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 2; i++) {
-            printf("%04x ", us[i]);
-            if (i % 16 == 15)
-               printf("\n");
-         }
-         printf("\n");
-      }
-      break;
-   case GL_UNSIGNED_INT:
-      {
-         const GLuint *us = (const GLuint *) map;
-         GLint i;
-         for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 4; i++) {
-            printf("%08x ", us[i]);
-            if (i % 8 == 7)
-               printf("\n");
-         }
-         printf("\n");
-      }
-      break;
-   default:
-      ;
-   }
-
-   ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,
-                           ctx->Array.ElementArrayBufferObj);
-}
-
-
-/**
- * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.
- * Do the rendering for a glDrawElements or glDrawRangeElements call after
- * we've validated buffer bounds, etc.
- */
-static void
-vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode,
-				GLboolean index_bounds_valid,
-				GLuint start, GLuint end,
-				GLsizei count, GLenum type,
-				const GLvoid *indices,
-				GLint basevertex, GLint numInstances)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   struct _mesa_index_buffer ib;
-   struct _mesa_prim prim[1];
-
-   FLUSH_CURRENT( ctx, 0 );
-
-   if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) {
-      return;
-   }
-
-   bind_arrays( ctx );
-
-   /* check for dirty state again */
-   if (ctx->NewState)
-      _mesa_update_state( ctx );
-
-   ib.count = count;
-   ib.type = type;
-   ib.obj = ctx->Array.ElementArrayBufferObj;
-   ib.ptr = indices;
-
-   prim[0].begin = 1;
-   prim[0].end = 1;
-   prim[0].weak = 0;
-   prim[0].pad = 0;
-   prim[0].mode = mode;
-   prim[0].start = 0;
-   prim[0].count = count;
-   prim[0].indexed = 1;
-   prim[0].basevertex = basevertex;
-   prim[0].num_instances = numInstances;
-
-   /* Need to give special consideration to rendering a range of
-    * indices starting somewhere above zero.  Typically the
-    * application is issuing multiple DrawRangeElements() to draw
-    * successive primitives layed out linearly in the vertex arrays.
-    * Unless the vertex arrays are all in a VBO (or locked as with
-    * CVA), the OpenGL semantics imply that we need to re-read or
-    * re-upload the vertex data on each draw call.  
-    *
-    * In the case of hardware tnl, we want to avoid starting the
-    * upload at zero, as it will mean every draw call uploads an
-    * increasing amount of not-used vertex data.  Worse - in the
-    * software tnl module, all those vertices might be transformed and
-    * lit but never rendered.
-    *
-    * If we just upload or transform the vertices in start..end,
-    * however, the indices will be incorrect.
-    *
-    * At this level, we don't know exactly what the requirements of
-    * the backend are going to be, though it will likely boil down to
-    * either:
-    *
-    * 1) Do nothing, everything is in a VBO and is processed once
-    *       only.
-    *
-    * 2) Adjust the indices and vertex arrays so that start becomes
-    *    zero.
-    *
-    * Rather than doing anything here, I'll provide a helper function
-    * for the latter case elsewhere.
-    */
-
-   vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib,
-		    index_bounds_valid, start, end );
-}
-
-
-/**
- * Called by glDrawRangeElementsBaseVertex() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_DrawRangeElementsBaseVertex(GLenum mode,
-				     GLuint start, GLuint end,
-				     GLsizei count, GLenum type,
-				     const GLvoid *indices,
-				     GLint basevertex)
-{
-   static GLuint warnCount = 0;
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx,
-                "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n",
-                _mesa_lookup_enum_by_nr(mode), start, end, count,
-                _mesa_lookup_enum_by_nr(type), indices, basevertex);
-
-   if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count,
-                                          type, indices, basevertex ))
-      return;
-
-   /* NOTE: It's important that 'end' is a reasonable value.
-    * in _tnl_draw_prims(), we use end to determine how many vertices
-    * to transform.  If it's too large, we can unnecessarily split prims
-    * or we can read/write out of memory in several different places!
-    */
-
-   /* Catch/fix some potential user errors */
-   if (type == GL_UNSIGNED_BYTE) {
-      start = MIN2(start, 0xff);
-      end = MIN2(end, 0xff);
-   }
-   else if (type == GL_UNSIGNED_SHORT) {
-      start = MIN2(start, 0xffff);
-      end = MIN2(end, 0xffff);
-   }
-
-   if (end >= ctx->Array.ArrayObj->_MaxElement) {
-      /* the max element is out of bounds of one or more enabled arrays */
-      warnCount++;
-
-      if (warnCount < 10) {
-         _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "
-                       "type 0x%x, indices=%p)\n"
-                       "\tend is out of bounds (max=%u)  "
-                       "Element Buffer %u (size %d)\n"
-                       "\tThis should probably be fixed in the application.",
-                       start, end, count, type, indices,
-                       ctx->Array.ArrayObj->_MaxElement - 1,
-                       ctx->Array.ElementArrayBufferObj->Name,
-                       (int) ctx->Array.ElementArrayBufferObj->Size);
-      }
-
-      if (0)
-         dump_element_buffer(ctx, type);
-
-      if (0)
-         _mesa_print_arrays(ctx);
-
-#ifdef DEBUG
-      /* 'end' was out of bounds, but now let's check the actual array
-       * indexes to see if any of them are out of bounds.
-       */
-      {
-         GLuint max = _mesa_max_buffer_index(ctx, count, type, indices,
-                                             ctx->Array.ElementArrayBufferObj);
-         if (max >= ctx->Array.ArrayObj->_MaxElement) {
-            if (warnCount < 10) {
-               _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, "
-                             "count %d, type 0x%x, indices=%p)\n"
-                             "\tindex=%u is out of bounds (max=%u)  "
-                             "Element Buffer %u (size %d)\n"
-                             "\tSkipping the glDrawRangeElements() call",
-                             start, end, count, type, indices, max,
-                             ctx->Array.ArrayObj->_MaxElement - 1,
-                             ctx->Array.ElementArrayBufferObj->Name,
-                             (int) ctx->Array.ElementArrayBufferObj->Size);
-            }
-         }
-         /* XXX we could also find the min index and compare to 'start'
-          * to see if start is correct.  But it's more likely to get the
-          * upper bound wrong.
-          */
-      }
-#endif
-
-      /* Set 'end' to the max possible legal value */
-      assert(ctx->Array.ArrayObj->_MaxElement >= 1);
-      end = ctx->Array.ArrayObj->_MaxElement - 1;
-   }
-   else if (0) {
-      printf("glDraw[Range]Elements{,BaseVertex}"
-	     "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, "
-	     "base %d\n",
-	     start, end, type, count,
-	     ctx->Array.ElementArrayBufferObj->Name,
-	     basevertex);
-   }
-
-#if 0
-   check_draw_elements_data(ctx, count, type, indices);
-#else
-   (void) check_draw_elements_data;
-#endif
-
-   vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end,
-				   count, type, indices, basevertex, 1);
-}
-
-
-/**
- * Called by glDrawRangeElements() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
-                           GLsizei count, GLenum type, const GLvoid *indices)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx,
-                  "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n",
-                  _mesa_lookup_enum_by_nr(mode), start, end, count,
-                  _mesa_lookup_enum_by_nr(type), indices);
-
-   vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,
-					indices, 0);
-}
-
-
-/**
- * Called by glDrawElements() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
-                      const GLvoid *indices)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n",
-                  _mesa_lookup_enum_by_nr(mode), count,
-                  _mesa_lookup_enum_by_nr(type), indices);
-
-   if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 ))
-      return;
-
-   vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
-				   count, type, indices, 0, 1);
-}
-
-
-/**
- * Called by glDrawElementsBaseVertex() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
-				const GLvoid *indices, GLint basevertex)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n",
-                  _mesa_lookup_enum_by_nr(mode), count,
-                  _mesa_lookup_enum_by_nr(type), indices, basevertex);
-
-   if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices,
-				     basevertex ))
-      return;
-
-   vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
-				   count, type, indices, basevertex, 1);
-}
-
-
-/**
- * Called by glDrawElementsInstanced() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
-                               const GLvoid *indices, GLsizei numInstances)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_DRAW)
-      _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n",
-                  _mesa_lookup_enum_by_nr(mode), count,
-                  _mesa_lookup_enum_by_nr(type), indices, numInstances);
-
-   if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices,
-                                             numInstances))
-      return;
-
-   vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
-				   count, type, indices, 0, numInstances);
-}
-
-
-/**
- * Inner support for both _mesa_MultiDrawElements() and
- * _mesa_MultiDrawRangeElements().
- * This does the actual rendering after we've checked array indexes, etc.
- */
-static void
-vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
-				const GLsizei *count, GLenum type,
-				const GLvoid **indices, GLsizei primcount,
-				const GLint *basevertex)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   struct _mesa_index_buffer ib;
-   struct _mesa_prim *prim;
-   unsigned int index_type_size = 0;
-   uintptr_t min_index_ptr, max_index_ptr;
-   GLboolean fallback = GL_FALSE;
-   int i;
-
-   if (primcount == 0)
-      return;
-
-   FLUSH_CURRENT( ctx, 0 );
-
-   if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) {
-      return;
-   }
-
-   prim = calloc(1, primcount * sizeof(*prim));
-   if (prim == NULL) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");
-      return;
-   }
-
-   /* Decide if we can do this all as one set of primitives sharing the
-    * same index buffer, or if we have to reset the index pointer per
-    * primitive.
-    */
-   bind_arrays( ctx );
-
-   /* check for dirty state again */
-   if (ctx->NewState)
-      _mesa_update_state( ctx );
-
-   switch (type) {
-   case GL_UNSIGNED_INT:
-      index_type_size = 4;
-      break;
-   case GL_UNSIGNED_SHORT:
-      index_type_size = 2;
-      break;
-   case GL_UNSIGNED_BYTE:
-      index_type_size = 1;
-      break;
-   default:
-      assert(0);
-   }
-
-   min_index_ptr = (uintptr_t)indices[0];
-   max_index_ptr = 0;
-   for (i = 0; i < primcount; i++) {
-      min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]);
-      max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] +
-			   index_type_size * count[i]);
-   }
-
-   /* Check if we can handle this thing as a bunch of index offsets from the
-    * same index pointer.  If we can't, then we have to fall back to doing
-    * a draw_prims per primitive.
-    * Check that the difference between each prim's indexes is a multiple of
-    * the index/element size.
-    */
-   if (index_type_size != 1) {
-      for (i = 0; i < primcount; i++) {
-	 if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) {
-	    fallback = GL_TRUE;
-	    break;
-	 }
-      }
-   }
-
-   /* If the index buffer isn't in a VBO, then treating the application's
-    * subranges of the index buffer as one large index buffer may lead to
-    * us reading unmapped memory.
-    */
-   if (!_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj))
-      fallback = GL_TRUE;
-
-   if (!fallback) {
-      ib.count = (max_index_ptr - min_index_ptr) / index_type_size;
-      ib.type = type;
-      ib.obj = ctx->Array.ElementArrayBufferObj;
-      ib.ptr = (void *)min_index_ptr;
-
-      for (i = 0; i < primcount; i++) {
-	 prim[i].begin = (i == 0);
-	 prim[i].end = (i == primcount - 1);
-	 prim[i].weak = 0;
-	 prim[i].pad = 0;
-	 prim[i].mode = mode;
-	 prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size;
-	 prim[i].count = count[i];
-	 prim[i].indexed = 1;
-         prim[i].num_instances = 1;
-	 if (basevertex != NULL)
-	    prim[i].basevertex = basevertex[i];
-	 else
-	    prim[i].basevertex = 0;
-      }
-
-      vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib,
-		      GL_FALSE, ~0, ~0);
-   } else {
-      /* render one prim at a time */
-      for (i = 0; i < primcount; i++) {
-	 ib.count = count[i];
-	 ib.type = type;
-	 ib.obj = ctx->Array.ElementArrayBufferObj;
-	 ib.ptr = indices[i];
-
-	 prim[0].begin = 1;
-	 prim[0].end = 1;
-	 prim[0].weak = 0;
-	 prim[0].pad = 0;
-	 prim[0].mode = mode;
-	 prim[0].start = 0;
-	 prim[0].count = count[i];
-	 prim[0].indexed = 1;
-         prim[0].num_instances = 1;
-	 if (basevertex != NULL)
-	    prim[0].basevertex = basevertex[i];
-	 else
-	    prim[0].basevertex = 0;
-
-         vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib,
-                         GL_FALSE, ~0, ~0);
-      }
-   }
-
-   free(prim);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_MultiDrawElements(GLenum mode,
-			   const GLsizei *count, GLenum type,
-			   const GLvoid **indices,
-			   GLsizei primcount)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLint i;
-
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   for (i = 0; i < primcount; i++) {
-      if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i],
-				       0))
-	 return;
-   }
-
-   vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount,
-				   NULL);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_MultiDrawElementsBaseVertex(GLenum mode,
-				     const GLsizei *count, GLenum type,
-				     const GLvoid **indices,
-				     GLsizei primcount,
-				     const GLsizei *basevertex)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLint i;
-
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   for (i = 0; i < primcount; i++) {
-      if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i],
-				       basevertex[i]))
-	 return;
-   }
-
-   vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount,
-				   basevertex);
-}
-
-
-/**
- * Plug in the immediate-mode vertex array drawing commands into the
- * givven vbo_exec_context object.
- */
-void
-vbo_exec_array_init( struct vbo_exec_context *exec )
-{
-   exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays;
-   exec->vtxfmt.DrawElements = vbo_exec_DrawElements;
-   exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements;
-   exec->vtxfmt.MultiDrawElementsEXT = vbo_exec_MultiDrawElements;
-   exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex;
-   exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex;
-   exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex;
-   exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced;
-   exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced;
-}
-
-
-void
-vbo_exec_array_destroy( struct vbo_exec_context *exec )
-{
-   /* nothing to do */
-}
-
-
-
-/**
- * The following functions are only used for OpenGL ES 1/2 support.
- * And some aren't even supported (yet) in ES 1/2.
- */
-
-
-void GLAPIENTRY
-_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count)
-{
-   vbo_exec_DrawArrays(mode, first, count);
-}
-
-
-void GLAPIENTRY
-_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,
-                   const GLvoid *indices)
-{
-   vbo_exec_DrawElements(mode, count, type, indices);
-}
-
-
-void GLAPIENTRY
-_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
-			     const GLvoid *indices, GLint basevertex)
-{
-   vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex);
-}
-
-
-void GLAPIENTRY
-_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
-                        GLenum type, const GLvoid *indices)
-{
-   vbo_exec_DrawRangeElements(mode, start, end, count, type, indices);
-}
-
-
-void GLAPIENTRY
-_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,
-				  GLsizei count, GLenum type,
-				  const GLvoid *indices, GLint basevertex)
-{
-   vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,
-					indices, basevertex);
-}
-
-
-void GLAPIENTRY
-_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type,
-			   const GLvoid **indices, GLsizei primcount)
-{
-   vbo_exec_MultiDrawElements(mode, count, type, indices, primcount);
-}
-
-
-void GLAPIENTRY
-_mesa_MultiDrawElementsBaseVertex(GLenum mode,
-				  const GLsizei *count, GLenum type,
-				  const GLvoid **indices, GLsizei primcount,
-				  const GLint *basevertex)
-{
-   vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices,
-					primcount, basevertex);
-}
+/**************************************************************************

+ * 

+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * Copyright 2009 VMware, Inc.

+ * All Rights Reserved.

+ * 

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sub license, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ * 

+ * The above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ * 

+ **************************************************************************/

+

+#include "main/glheader.h"

+#include "main/context.h"

+#include "main/state.h"

+#include "main/api_validate.h"

+#include "main/varray.h"

+#include "main/bufferobj.h"

+#include "main/enums.h"

+#include "main/macros.h"

+

+#include "vbo_context.h"

+

+

+/**

+ * Compute min and max elements by scanning the index buffer for

+ * glDraw[Range]Elements() calls.

+ * If primitive restart is enabled, we need to ignore restart

+ * indexes when computing min/max.

+ */

+void

+vbo_get_minmax_index(struct gl_context *ctx,

+		     const struct _mesa_prim *prim,

+		     const struct _mesa_index_buffer *ib,

+		     GLuint *min_index, GLuint *max_index)

+{

+   const GLboolean restart = ctx->Array.PrimitiveRestart;

+   const GLuint restartIndex = ctx->Array.RestartIndex;

+   const GLuint count = prim->count;

+   const void *indices;

+   GLuint i;

+

+   if (_mesa_is_bufferobj(ib->obj)) {

+      const GLvoid *map =

+         ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,

+                               GL_READ_ONLY, ib->obj);

+      indices = ADD_POINTERS(map, ib->ptr);

+   } else {

+      indices = ib->ptr;

+   }

+

+   switch (ib->type) {

+   case GL_UNSIGNED_INT: {

+      const GLuint *ui_indices = (const GLuint *)indices;

+      GLuint max_ui = 0;

+      GLuint min_ui = ~0U;

+      if (restart) {

+         for (i = 0; i < count; i++) {

+            if (ui_indices[i] != restartIndex) {

+               if (ui_indices[i] > max_ui) max_ui = ui_indices[i];

+               if (ui_indices[i] < min_ui) min_ui = ui_indices[i];

+            }

+         }

+      }

+      else {

+         for (i = 0; i < count; i++) {

+            if (ui_indices[i] > max_ui) max_ui = ui_indices[i];

+            if (ui_indices[i] < min_ui) min_ui = ui_indices[i];

+         }

+      }

+      *min_index = min_ui;

+      *max_index = max_ui;

+      break;

+   }

+   case GL_UNSIGNED_SHORT: {

+      const GLushort *us_indices = (const GLushort *)indices;

+      GLuint max_us = 0;

+      GLuint min_us = ~0U;

+      if (restart) {

+         for (i = 0; i < count; i++) {

+            if (us_indices[i] != restartIndex) {

+               if (us_indices[i] > max_us) max_us = us_indices[i];

+               if (us_indices[i] < min_us) min_us = us_indices[i];

+            }

+         }

+      }

+      else {

+         for (i = 0; i < count; i++) {

+            if (us_indices[i] > max_us) max_us = us_indices[i];

+            if (us_indices[i] < min_us) min_us = us_indices[i];

+         }

+      }

+      *min_index = min_us;

+      *max_index = max_us;

+      break;

+   }

+   case GL_UNSIGNED_BYTE: {

+      const GLubyte *ub_indices = (const GLubyte *)indices;

+      GLuint max_ub = 0;

+      GLuint min_ub = ~0U;

+      if (restart) {

+         for (i = 0; i < count; i++) {

+            if (ub_indices[i] != restartIndex) {

+               if (ub_indices[i] > max_ub) max_ub = ub_indices[i];

+               if (ub_indices[i] < min_ub) min_ub = ub_indices[i];

+            }

+         }

+      }

+      else {

+         for (i = 0; i < count; i++) {

+            if (ub_indices[i] > max_ub) max_ub = ub_indices[i];

+            if (ub_indices[i] < min_ub) min_ub = ub_indices[i];

+         }

+      }

+      *min_index = min_ub;

+      *max_index = max_ub;

+      break;

+   }

+   default:

+      assert(0);

+      break;

+   }

+

+   if (_mesa_is_bufferobj(ib->obj)) {

+      ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, ib->obj);

+   }

+}

+

+

+/**

+ * Check that element 'j' of the array has reasonable data.

+ * Map VBO if needed.

+ * For debugging purposes; not normally used.

+ */

+static void

+check_array_data(struct gl_context *ctx, struct gl_client_array *array,

+                 GLuint attrib, GLuint j)

+{

+   if (array->Enabled) {

+      const void *data = array->Ptr;

+      if (_mesa_is_bufferobj(array->BufferObj)) {

+         if (!array->BufferObj->Pointer) {

+            /* need to map now */

+            array->BufferObj->Pointer =

+               ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB,

+                                     GL_READ_ONLY, array->BufferObj);

+         }

+         data = ADD_POINTERS(data, array->BufferObj->Pointer);

+      }

+      switch (array->Type) {

+      case GL_FLOAT:

+         {

+            GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j);

+            GLint k;

+            for (k = 0; k < array->Size; k++) {

+               if (IS_INF_OR_NAN(f[k]) ||

+                   f[k] >= 1.0e20 || f[k] <= -1.0e10) {

+                  printf("Bad array data:\n");

+                  printf("  Element[%u].%u = %f\n", j, k, f[k]);

+                  printf("  Array %u at %p\n", attrib, (void* ) array);

+                  printf("  Type 0x%x, Size %d, Stride %d\n",

+			 array->Type, array->Size, array->Stride);

+                  printf("  Address/offset %p in Buffer Object %u\n",

+			 array->Ptr, array->BufferObj->Name);

+                  f[k] = 1.0; /* XXX replace the bad value! */

+               }

+               /*assert(!IS_INF_OR_NAN(f[k]));*/

+            }

+         }

+         break;

+      default:

+         ;

+      }

+   }

+}

+

+

+/**

+ * Unmap the buffer object referenced by given array, if mapped.

+ */

+static void

+unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array)

+{

+   if (array->Enabled &&

+       _mesa_is_bufferobj(array->BufferObj) &&

+       _mesa_bufferobj_mapped(array->BufferObj)) {

+      ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, array->BufferObj);

+   }

+}

+

+

+/**

+ * Examine the array's data for NaNs, etc.

+ * For debug purposes; not normally used.

+ */

+static void

+check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType,

+                         const void *elements, GLint basevertex)

+{

+   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;

+   const void *elemMap;

+   GLint i, k;

+

+   if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {

+      elemMap = ctx->Driver.MapBuffer(ctx,

+                                      GL_ELEMENT_ARRAY_BUFFER_ARB,

+                                      GL_READ_ONLY,

+                                      ctx->Array.ElementArrayBufferObj);

+      elements = ADD_POINTERS(elements, elemMap);

+   }

+

+   for (i = 0; i < count; i++) {

+      GLuint j;

+

+      /* j = element[i] */

+      switch (elemType) {

+      case GL_UNSIGNED_BYTE:

+         j = ((const GLubyte *) elements)[i];

+         break;

+      case GL_UNSIGNED_SHORT:

+         j = ((const GLushort *) elements)[i];

+         break;

+      case GL_UNSIGNED_INT:

+         j = ((const GLuint *) elements)[i];

+         break;

+      default:

+         assert(0);

+      }

+

+      /* check element j of each enabled array */

+      check_array_data(ctx, &arrayObj->Vertex, VERT_ATTRIB_POS, j);

+      check_array_data(ctx, &arrayObj->Normal, VERT_ATTRIB_NORMAL, j);

+      check_array_data(ctx, &arrayObj->Color, VERT_ATTRIB_COLOR0, j);

+      check_array_data(ctx, &arrayObj->SecondaryColor, VERT_ATTRIB_COLOR1, j);

+      for (k = 0; k < Elements(arrayObj->TexCoord); k++) {

+         check_array_data(ctx, &arrayObj->TexCoord[k], VERT_ATTRIB_TEX0 + k, j);

+      }

+      for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) {

+         check_array_data(ctx, &arrayObj->VertexAttrib[k],

+                          VERT_ATTRIB_GENERIC0 + k, j);

+      }

+   }

+

+   if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {

+      ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,

+			      ctx->Array.ElementArrayBufferObj);

+   }

+

+   unmap_array_buffer(ctx, &arrayObj->Vertex);

+   unmap_array_buffer(ctx, &arrayObj->Normal);

+   unmap_array_buffer(ctx, &arrayObj->Color);

+   for (k = 0; k < Elements(arrayObj->TexCoord); k++) {

+      unmap_array_buffer(ctx, &arrayObj->TexCoord[k]);

+   }

+   for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) {

+      unmap_array_buffer(ctx, &arrayObj->VertexAttrib[k]);

+   }

+}

+

+

+/**

+ * Check array data, looking for NaNs, etc.

+ */

+static void

+check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count)

+{

+   /* TO DO */

+}

+

+

+/**

+ * Print info/data for glDrawArrays(), for debugging.

+ */

+static void

+print_draw_arrays(struct gl_context *ctx,

+                  GLenum mode, GLint start, GLsizei count)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   int i;

+

+   printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",

+	  mode, start, count);

+

+   for (i = 0; i < 32; i++) {

+      GLuint bufName = exec->array.inputs[i]->BufferObj->Name;

+      GLint stride = exec->array.inputs[i]->Stride;

+      printf("attr %2d: size %d stride %d  enabled %d  "

+	     "ptr %p  Bufobj %u\n",

+	     i,

+	     exec->array.inputs[i]->Size,

+	     stride,

+	     /*exec->array.inputs[i]->Enabled,*/

+	     exec->array.legacy_array[i]->Enabled,

+	     exec->array.inputs[i]->Ptr,

+	     bufName);

+

+      if (bufName) {

+         struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, bufName);

+         GLubyte *p = ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB,

+                                            GL_READ_ONLY_ARB, buf);

+         int offset = (int) (GLintptr) exec->array.inputs[i]->Ptr;

+         float *f = (float *) (p + offset);

+         int *k = (int *) f;

+         int i;

+         int n = (count * stride) / 4;

+         if (n > 32)

+            n = 32;

+         printf("  Data at offset %d:\n", offset);

+         for (i = 0; i < n; i++) {

+            printf("    float[%d] = 0x%08x %f\n", i, k[i], f[i]);

+         }

+         ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, buf);

+      }

+   }

+}

+

+

+/**

+ * Bind the VBO executor to the current vertex array object prior

+ * to drawing.

+ *

+ * Just translate the arrayobj into a sane layout.

+ */

+static void

+bind_array_obj(struct gl_context *ctx)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;

+   GLuint i;

+

+   /* TODO: Fix the ArrayObj struct to keep legacy arrays in an array

+    * rather than as individual named arrays.  Then this function can

+    * go away.

+    */

+   exec->array.legacy_array[VERT_ATTRIB_POS] = &arrayObj->Vertex;

+   exec->array.legacy_array[VERT_ATTRIB_WEIGHT] = &arrayObj->Weight;

+   exec->array.legacy_array[VERT_ATTRIB_NORMAL] = &arrayObj->Normal;

+   exec->array.legacy_array[VERT_ATTRIB_COLOR0] = &arrayObj->Color;

+   exec->array.legacy_array[VERT_ATTRIB_COLOR1] = &arrayObj->SecondaryColor;

+   exec->array.legacy_array[VERT_ATTRIB_FOG] = &arrayObj->FogCoord;

+   exec->array.legacy_array[VERT_ATTRIB_COLOR_INDEX] = &arrayObj->Index;

+   if (arrayObj->PointSize.Enabled) {

+      /* this aliases COLOR_INDEX */

+      exec->array.legacy_array[VERT_ATTRIB_POINT_SIZE] = &arrayObj->PointSize;

+   }

+   exec->array.legacy_array[VERT_ATTRIB_EDGEFLAG] = &arrayObj->EdgeFlag;

+

+   for (i = 0; i < Elements(arrayObj->TexCoord); i++)

+      exec->array.legacy_array[VERT_ATTRIB_TEX0 + i] = &arrayObj->TexCoord[i];

+

+   for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) {

+      assert(i < Elements(exec->array.generic_array));

+      exec->array.generic_array[i] = &arrayObj->VertexAttrib[i];

+   }

+   

+   exec->array.array_obj = arrayObj->Name;

+}

+

+

+/**

+ * Set the vbo->exec->inputs[] pointers to point to the enabled

+ * vertex arrays.  This depends on the current vertex program/shader

+ * being executed because of whether or not generic vertex arrays

+ * alias the conventional vertex arrays.

+ * For arrays that aren't enabled, we set the input[attrib] pointer

+ * to point at a zero-stride current value "array".

+ */

+static void

+recalculate_input_bindings(struct gl_context *ctx)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   const struct gl_client_array **inputs = &exec->array.inputs[0];

+   GLbitfield const_inputs = 0x0;

+   GLuint i;

+

+   exec->array.program_mode = get_program_mode(ctx);

+   exec->array.enabled_flags = ctx->Array.ArrayObj->_Enabled;

+

+   switch (exec->array.program_mode) {

+   case VP_NONE:

+      /* When no vertex program is active (or the vertex program is generated

+       * from fixed-function state).  We put the material values into the

+       * generic slots.  This is the only situation where material values

+       * are available as per-vertex attributes.

+       */

+      for (i = 0; i <= VERT_ATTRIB_TEX7; i++) {

+	 if (exec->array.legacy_array[i]->Enabled)

+	    inputs[i] = exec->array.legacy_array[i];

+	 else {

+	    inputs[i] = &vbo->legacy_currval[i];

+            const_inputs |= 1 << i;

+         }

+      }

+

+      for (i = 0; i < MAT_ATTRIB_MAX; i++) {

+	 inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->mat_currval[i];

+         const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i);

+      }

+

+      /* Could use just about anything, just to fill in the empty

+       * slots:

+       */

+      for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_MAX - VERT_ATTRIB_GENERIC0; i++) {

+	 inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i];

+         const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i);

+      }

+      break;

+

+   case VP_NV:

+      /* NV_vertex_program - attribute arrays alias and override

+       * conventional, legacy arrays.  No materials, and the generic

+       * slots are vacant.

+       */

+      for (i = 0; i <= VERT_ATTRIB_TEX7; i++) {

+	 if (exec->array.generic_array[i]->Enabled)

+	    inputs[i] = exec->array.generic_array[i];

+	 else if (exec->array.legacy_array[i]->Enabled)

+	    inputs[i] = exec->array.legacy_array[i];

+	 else {

+	    inputs[i] = &vbo->legacy_currval[i];

+            const_inputs |= 1 << i;

+         }

+      }

+

+      /* Could use just about anything, just to fill in the empty

+       * slots:

+       */

+      for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) {

+	 inputs[i] = &vbo->generic_currval[i - VERT_ATTRIB_GENERIC0];

+         const_inputs |= 1 << i;

+      }

+      break;

+

+   case VP_ARB:

+      /* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0]

+       * attribute array aliases and overrides the legacy position array.  

+       *

+       * Otherwise, legacy attributes available in the legacy slots,

+       * generic attributes in the generic slots and materials are not

+       * available as per-vertex attributes.

+       */

+      if (exec->array.generic_array[0]->Enabled)

+	 inputs[0] = exec->array.generic_array[0];

+      else if (exec->array.legacy_array[0]->Enabled)

+	 inputs[0] = exec->array.legacy_array[0];

+      else {

+	 inputs[0] = &vbo->legacy_currval[0];

+         const_inputs |= 1 << 0;

+      }

+

+      for (i = 1; i <= VERT_ATTRIB_TEX7; i++) {

+	 if (exec->array.legacy_array[i]->Enabled)

+	    inputs[i] = exec->array.legacy_array[i];

+	 else {

+	    inputs[i] = &vbo->legacy_currval[i];

+            const_inputs |= 1 << i;

+         }

+      }

+

+      for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) {

+	 if (exec->array.generic_array[i]->Enabled)

+	    inputs[VERT_ATTRIB_GENERIC0 + i] = exec->array.generic_array[i];

+	 else {

+	    inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i];

+            const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i);

+         }

+

+      }

+      break;

+   }

+

+   _mesa_set_varying_vp_inputs( ctx, ~const_inputs );

+}

+

+

+/**

+ * Examine the enabled vertex arrays to set the exec->array.inputs[] values.

+ * These will point to the arrays to actually use for drawing.  Some will

+ * be user-provided arrays, other will be zero-stride const-valued arrays.

+ * Note that this might set the _NEW_ARRAY dirty flag so state validation

+ * must be done after this call.

+ */

+static void

+bind_arrays(struct gl_context *ctx)

+{

+   if (!ctx->Array.RebindArrays) {

+      return;

+   }

+

+   bind_array_obj(ctx);

+   recalculate_input_bindings(ctx);

+   ctx->Array.RebindArrays = GL_FALSE;

+}

+

+

+/**

+ * Helper function called by the other DrawArrays() functions below.

+ * This is where we handle primitive restart for drawing non-indexed

+ * arrays.  If primitive restart is enabled, it typically means

+ * splitting one DrawArrays() into two.

+ */

+static void

+vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,

+                GLsizei count, GLuint numInstances)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   struct _mesa_prim prim[2];

+

+   bind_arrays(ctx);

+

+   /* Again... because we may have changed the bitmask of per-vertex varying

+    * attributes.  If we regenerate the fixed-function vertex program now

+    * we may be able to prune down the number of vertex attributes which we

+    * need in the shader.

+    */

+   if (ctx->NewState)

+      _mesa_update_state(ctx);

+

+   prim[0].begin = 1;

+   prim[0].end = 1;

+   prim[0].weak = 0;

+   prim[0].pad = 0;

+   prim[0].mode = mode;

+   prim[0].start = 0; /* filled in below */

+   prim[0].count = 0; /* filled in below */

+   prim[0].indexed = 0;

+   prim[0].basevertex = 0;

+   prim[0].num_instances = numInstances;

+

+   /* Implement the primitive restart index */

+   if (ctx->Array.PrimitiveRestart && ctx->Array.RestartIndex < count) {

+      GLuint primCount = 0;

+

+      if (ctx->Array.RestartIndex == start) {

+         /* special case: RestartIndex at beginning */

+         if (count > 1) {

+            prim[0].start = start + 1;

+            prim[0].count = count - 1;

+            primCount = 1;

+         }

+      }

+      else if (ctx->Array.RestartIndex == start + count - 1) {

+         /* special case: RestartIndex at end */

+         if (count > 1) {

+            prim[0].start = start;

+            prim[0].count = count - 1;

+            primCount = 1;

+         }

+      }

+      else {

+         /* general case: RestartIndex in middle, split into two prims */

+         prim[0].start = start;

+         prim[0].count = ctx->Array.RestartIndex - start;

+

+         prim[1] = prim[0];

+         prim[1].start = ctx->Array.RestartIndex + 1;

+         prim[1].count = count - prim[1].start;

+

+         primCount = 2;

+      }

+

+      if (primCount > 0) {

+         /* draw one or two prims */

+         vbo->draw_prims(ctx, exec->array.inputs, prim, primCount, NULL,

+                         GL_TRUE, start, start + count - 1);

+      }

+   }

+   else {

+      /* no prim restart */

+      prim[0].start = start;

+      prim[0].count = count;

+

+      vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL,

+                      GL_TRUE, start, start + count - 1);

+   }

+}

+

+

+

+/**

+ * Called from glDrawArrays when in immediate mode (not display list mode).

+ */

+static void GLAPIENTRY

+vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n",

+                  _mesa_lookup_enum_by_nr(mode), start, count);

+

+   if (!_mesa_validate_DrawArrays( ctx, mode, start, count ))

+      return;

+

+   FLUSH_CURRENT( ctx, 0 );

+

+   if (!_mesa_valid_to_render(ctx, "glDrawArrays")) {

+      return;

+   }

+

+   if (0)

+      check_draw_arrays_data(ctx, start, count);

+

+   vbo_draw_arrays(ctx, mode, start, count, 1);

+

+   if (0)

+      print_draw_arrays(ctx, mode, start, count);

+}

+

+

+/**

+ * Called from glDrawArraysInstanced when in immediate mode (not

+ * display list mode).

+ */

+static void GLAPIENTRY

+vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count,

+                             GLsizei numInstances)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n",

+                  _mesa_lookup_enum_by_nr(mode), start, count, numInstances);

+

+   if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, numInstances))

+      return;

+

+   FLUSH_CURRENT( ctx, 0 );

+

+   if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) {

+      return;

+   }

+

+   if (0)

+      check_draw_arrays_data(ctx, start, count);

+

+   vbo_draw_arrays(ctx, mode, start, count, numInstances);

+

+   if (0)

+      print_draw_arrays(ctx, mode, start, count);

+}

+

+

+/**

+ * Map GL_ELEMENT_ARRAY_BUFFER and print contents.

+ * For debugging.

+ */

+static void

+dump_element_buffer(struct gl_context *ctx, GLenum type)

+{

+   const GLvoid *map = ctx->Driver.MapBuffer(ctx,

+                                             GL_ELEMENT_ARRAY_BUFFER_ARB,

+                                             GL_READ_ONLY,

+                                             ctx->Array.ElementArrayBufferObj);

+   switch (type) {

+   case GL_UNSIGNED_BYTE:

+      {

+         const GLubyte *us = (const GLubyte *) map;

+         GLint i;

+         for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size; i++) {

+            printf("%02x ", us[i]);

+            if (i % 32 == 31)

+               printf("\n");

+         }

+         printf("\n");

+      }

+      break;

+   case GL_UNSIGNED_SHORT:

+      {

+         const GLushort *us = (const GLushort *) map;

+         GLint i;

+         for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 2; i++) {

+            printf("%04x ", us[i]);

+            if (i % 16 == 15)

+               printf("\n");

+         }

+         printf("\n");

+      }

+      break;

+   case GL_UNSIGNED_INT:

+      {

+         const GLuint *us = (const GLuint *) map;

+         GLint i;

+         for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 4; i++) {

+            printf("%08x ", us[i]);

+            if (i % 8 == 7)

+               printf("\n");

+         }

+         printf("\n");

+      }

+      break;

+   default:

+      ;

+   }

+

+   ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,

+                           ctx->Array.ElementArrayBufferObj);

+}

+

+

+/**

+ * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.

+ * Do the rendering for a glDrawElements or glDrawRangeElements call after

+ * we've validated buffer bounds, etc.

+ */

+static void

+vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode,

+				GLboolean index_bounds_valid,

+				GLuint start, GLuint end,

+				GLsizei count, GLenum type,

+				const GLvoid *indices,

+				GLint basevertex, GLint numInstances)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   struct _mesa_index_buffer ib;

+   struct _mesa_prim prim[1];

+

+   FLUSH_CURRENT( ctx, 0 );

+

+   if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) {

+      return;

+   }

+

+   bind_arrays( ctx );

+

+   /* check for dirty state again */

+   if (ctx->NewState)

+      _mesa_update_state( ctx );

+

+   ib.count = count;

+   ib.type = type;

+   ib.obj = ctx->Array.ElementArrayBufferObj;

+   ib.ptr = indices;

+

+   prim[0].begin = 1;

+   prim[0].end = 1;

+   prim[0].weak = 0;

+   prim[0].pad = 0;

+   prim[0].mode = mode;

+   prim[0].start = 0;

+   prim[0].count = count;

+   prim[0].indexed = 1;

+   prim[0].basevertex = basevertex;

+   prim[0].num_instances = numInstances;

+

+   /* Need to give special consideration to rendering a range of

+    * indices starting somewhere above zero.  Typically the

+    * application is issuing multiple DrawRangeElements() to draw

+    * successive primitives layed out linearly in the vertex arrays.

+    * Unless the vertex arrays are all in a VBO (or locked as with

+    * CVA), the OpenGL semantics imply that we need to re-read or

+    * re-upload the vertex data on each draw call.  

+    *

+    * In the case of hardware tnl, we want to avoid starting the

+    * upload at zero, as it will mean every draw call uploads an

+    * increasing amount of not-used vertex data.  Worse - in the

+    * software tnl module, all those vertices might be transformed and

+    * lit but never rendered.

+    *

+    * If we just upload or transform the vertices in start..end,

+    * however, the indices will be incorrect.

+    *

+    * At this level, we don't know exactly what the requirements of

+    * the backend are going to be, though it will likely boil down to

+    * either:

+    *

+    * 1) Do nothing, everything is in a VBO and is processed once

+    *       only.

+    *

+    * 2) Adjust the indices and vertex arrays so that start becomes

+    *    zero.

+    *

+    * Rather than doing anything here, I'll provide a helper function

+    * for the latter case elsewhere.

+    */

+

+   vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib,

+		    index_bounds_valid, start, end );

+}

+

+

+/**

+ * Called by glDrawRangeElementsBaseVertex() in immediate mode.

+ */

+static void GLAPIENTRY

+vbo_exec_DrawRangeElementsBaseVertex(GLenum mode,

+				     GLuint start, GLuint end,

+				     GLsizei count, GLenum type,

+				     const GLvoid *indices,

+				     GLint basevertex)

+{

+   static GLuint warnCount = 0;

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx,

+                "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n",

+                _mesa_lookup_enum_by_nr(mode), start, end, count,

+                _mesa_lookup_enum_by_nr(type), indices, basevertex);

+

+   if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count,

+                                          type, indices, basevertex ))

+      return;

+

+   /* NOTE: It's important that 'end' is a reasonable value.

+    * in _tnl_draw_prims(), we use end to determine how many vertices

+    * to transform.  If it's too large, we can unnecessarily split prims

+    * or we can read/write out of memory in several different places!

+    */

+

+   /* Catch/fix some potential user errors */

+   if (type == GL_UNSIGNED_BYTE) {

+      start = MIN2(start, 0xff);

+      end = MIN2(end, 0xff);

+   }

+   else if (type == GL_UNSIGNED_SHORT) {

+      start = MIN2(start, 0xffff);

+      end = MIN2(end, 0xffff);

+   }

+

+   if (end >= ctx->Array.ArrayObj->_MaxElement) {

+      /* the max element is out of bounds of one or more enabled arrays */

+      warnCount++;

+

+      if (warnCount < 10) {

+         _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "

+                       "type 0x%x, indices=%p)\n"

+                       "\tend is out of bounds (max=%u)  "

+                       "Element Buffer %u (size %d)\n"

+                       "\tThis should probably be fixed in the application.",

+                       start, end, count, type, indices,

+                       ctx->Array.ArrayObj->_MaxElement - 1,

+                       ctx->Array.ElementArrayBufferObj->Name,

+                       (int) ctx->Array.ElementArrayBufferObj->Size);

+      }

+

+      if (0)

+         dump_element_buffer(ctx, type);

+

+      if (0)

+         _mesa_print_arrays(ctx);

+

+#ifdef DEBUG

+      /* 'end' was out of bounds, but now let's check the actual array

+       * indexes to see if any of them are out of bounds.

+       */

+      {

+         GLuint max = _mesa_max_buffer_index(ctx, count, type, indices,

+                                             ctx->Array.ElementArrayBufferObj);

+         if (max >= ctx->Array.ArrayObj->_MaxElement) {

+            if (warnCount < 10) {

+               _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, "

+                             "count %d, type 0x%x, indices=%p)\n"

+                             "\tindex=%u is out of bounds (max=%u)  "

+                             "Element Buffer %u (size %d)\n"

+                             "\tSkipping the glDrawRangeElements() call",

+                             start, end, count, type, indices, max,

+                             ctx->Array.ArrayObj->_MaxElement - 1,

+                             ctx->Array.ElementArrayBufferObj->Name,

+                             (int) ctx->Array.ElementArrayBufferObj->Size);

+            }

+         }

+         /* XXX we could also find the min index and compare to 'start'

+          * to see if start is correct.  But it's more likely to get the

+          * upper bound wrong.

+          */

+      }

+#endif

+

+      /* Set 'end' to the max possible legal value */

+      assert(ctx->Array.ArrayObj->_MaxElement >= 1);

+      end = ctx->Array.ArrayObj->_MaxElement - 1;

+   }

+   else if (0) {

+      printf("glDraw[Range]Elements{,BaseVertex}"

+	     "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, "

+	     "base %d\n",

+	     start, end, type, count,

+	     ctx->Array.ElementArrayBufferObj->Name,

+	     basevertex);

+   }

+

+#if 0

+   check_draw_elements_data(ctx, count, type, indices);

+#else

+   (void) check_draw_elements_data;

+#endif

+

+   vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end,

+				   count, type, indices, basevertex, 1);

+}

+

+

+/**

+ * Called by glDrawRangeElements() in immediate mode.

+ */

+static void GLAPIENTRY

+vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end,

+                           GLsizei count, GLenum type, const GLvoid *indices)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx,

+                  "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n",

+                  _mesa_lookup_enum_by_nr(mode), start, end, count,

+                  _mesa_lookup_enum_by_nr(type), indices);

+

+   vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,

+					indices, 0);

+}

+

+

+/**

+ * Called by glDrawElements() in immediate mode.

+ */

+static void GLAPIENTRY

+vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,

+                      const GLvoid *indices)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n",

+                  _mesa_lookup_enum_by_nr(mode), count,

+                  _mesa_lookup_enum_by_nr(type), indices);

+

+   if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 ))

+      return;

+

+   vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,

+				   count, type, indices, 0, 1);

+}

+

+

+/**

+ * Called by glDrawElementsBaseVertex() in immediate mode.

+ */

+static void GLAPIENTRY

+vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,

+				const GLvoid *indices, GLint basevertex)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n",

+                  _mesa_lookup_enum_by_nr(mode), count,

+                  _mesa_lookup_enum_by_nr(type), indices, basevertex);

+

+   if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices,

+				     basevertex ))

+      return;

+

+   vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,

+				   count, type, indices, basevertex, 1);

+}

+

+

+/**

+ * Called by glDrawElementsInstanced() in immediate mode.

+ */

+static void GLAPIENTRY

+vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,

+                               const GLvoid *indices, GLsizei numInstances)

+{

+   GET_CURRENT_CONTEXT(ctx);

+

+   if (MESA_VERBOSE & VERBOSE_DRAW)

+      _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n",

+                  _mesa_lookup_enum_by_nr(mode), count,

+                  _mesa_lookup_enum_by_nr(type), indices, numInstances);

+

+   if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices,

+                                             numInstances))

+      return;

+

+   vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,

+				   count, type, indices, 0, numInstances);

+}

+

+

+/**

+ * Inner support for both _mesa_MultiDrawElements() and

+ * _mesa_MultiDrawRangeElements().

+ * This does the actual rendering after we've checked array indexes, etc.

+ */

+static void

+vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,

+				const GLsizei *count, GLenum type,

+				const GLvoid **indices, GLsizei primcount,

+				const GLint *basevertex)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   struct _mesa_index_buffer ib;

+   struct _mesa_prim *prim;

+   unsigned int index_type_size = 0;

+   uintptr_t min_index_ptr, max_index_ptr;

+   GLboolean fallback = GL_FALSE;

+   int i;

+

+   if (primcount == 0)

+      return;

+

+   FLUSH_CURRENT( ctx, 0 );

+

+   if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) {

+      return;

+   }

+

+   prim = calloc(1, primcount * sizeof(*prim));

+   if (prim == NULL) {

+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");

+      return;

+   }

+

+   /* Decide if we can do this all as one set of primitives sharing the

+    * same index buffer, or if we have to reset the index pointer per

+    * primitive.

+    */

+   bind_arrays( ctx );

+

+   /* check for dirty state again */

+   if (ctx->NewState)

+      _mesa_update_state( ctx );

+

+   switch (type) {

+   case GL_UNSIGNED_INT:

+      index_type_size = 4;

+      break;

+   case GL_UNSIGNED_SHORT:

+      index_type_size = 2;

+      break;

+   case GL_UNSIGNED_BYTE:

+      index_type_size = 1;

+      break;

+   default:

+      assert(0);

+   }

+

+   min_index_ptr = (uintptr_t)indices[0];

+   max_index_ptr = 0;

+   for (i = 0; i < primcount; i++) {

+      min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]);

+      max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] +

+			   index_type_size * count[i]);

+   }

+

+   /* Check if we can handle this thing as a bunch of index offsets from the

+    * same index pointer.  If we can't, then we have to fall back to doing

+    * a draw_prims per primitive.

+    * Check that the difference between each prim's indexes is a multiple of

+    * the index/element size.

+    */

+   if (index_type_size != 1) {

+      for (i = 0; i < primcount; i++) {

+	 if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) {

+	    fallback = GL_TRUE;

+	    break;

+	 }

+      }

+   }

+

+   /* If the index buffer isn't in a VBO, then treating the application's

+    * subranges of the index buffer as one large index buffer may lead to

+    * us reading unmapped memory.

+    */

+   if (!_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj))

+      fallback = GL_TRUE;

+

+   if (!fallback) {

+      ib.count = (max_index_ptr - min_index_ptr) / index_type_size;

+      ib.type = type;

+      ib.obj = ctx->Array.ElementArrayBufferObj;

+      ib.ptr = (void *)min_index_ptr;

+

+      for (i = 0; i < primcount; i++) {

+	 prim[i].begin = (i == 0);

+	 prim[i].end = (i == primcount - 1);

+	 prim[i].weak = 0;

+	 prim[i].pad = 0;

+	 prim[i].mode = mode;

+	 prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size;

+	 prim[i].count = count[i];

+	 prim[i].indexed = 1;

+         prim[i].num_instances = 1;

+	 if (basevertex != NULL)

+	    prim[i].basevertex = basevertex[i];

+	 else

+	    prim[i].basevertex = 0;

+      }

+

+      vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib,

+		      GL_FALSE, ~0, ~0);

+   } else {

+      /* render one prim at a time */

+      for (i = 0; i < primcount; i++) {

+	 ib.count = count[i];

+	 ib.type = type;

+	 ib.obj = ctx->Array.ElementArrayBufferObj;

+	 ib.ptr = indices[i];

+

+	 prim[0].begin = 1;

+	 prim[0].end = 1;

+	 prim[0].weak = 0;

+	 prim[0].pad = 0;

+	 prim[0].mode = mode;

+	 prim[0].start = 0;

+	 prim[0].count = count[i];

+	 prim[0].indexed = 1;

+         prim[0].num_instances = 1;

+	 if (basevertex != NULL)

+	    prim[0].basevertex = basevertex[i];

+	 else

+	    prim[0].basevertex = 0;

+

+         vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib,

+                         GL_FALSE, ~0, ~0);

+      }

+   }

+

+   free(prim);

+}

+

+

+static void GLAPIENTRY

+vbo_exec_MultiDrawElements(GLenum mode,

+			   const GLsizei *count, GLenum type,

+			   const GLvoid **indices,

+			   GLsizei primcount)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLint i;

+

+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

+

+   for (i = 0; i < primcount; i++) {

+      if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i],

+				       0))

+	 return;

+   }

+

+   vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount,

+				   NULL);

+}

+

+

+static void GLAPIENTRY

+vbo_exec_MultiDrawElementsBaseVertex(GLenum mode,

+				     const GLsizei *count, GLenum type,

+				     const GLvoid **indices,

+				     GLsizei primcount,

+				     const GLsizei *basevertex)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLint i;

+

+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

+

+   for (i = 0; i < primcount; i++) {

+      if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i],

+				       basevertex[i]))

+	 return;

+   }

+

+   vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount,

+				   basevertex);

+}

+

+

+/**

+ * Plug in the immediate-mode vertex array drawing commands into the

+ * givven vbo_exec_context object.

+ */

+void

+vbo_exec_array_init( struct vbo_exec_context *exec )

+{

+   exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays;

+   exec->vtxfmt.DrawElements = vbo_exec_DrawElements;

+   exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements;

+   exec->vtxfmt.MultiDrawElementsEXT = vbo_exec_MultiDrawElements;

+   exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex;

+   exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex;

+   exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex;

+   exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced;

+   exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced;

+}

+

+

+void

+vbo_exec_array_destroy( struct vbo_exec_context *exec )

+{

+   /* nothing to do */

+}

+

+

+

+/**

+ * The following functions are only used for OpenGL ES 1/2 support.

+ * And some aren't even supported (yet) in ES 1/2.

+ */

+

+

+void GLAPIENTRY

+_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count)

+{

+   vbo_exec_DrawArrays(mode, first, count);

+}

+

+

+void GLAPIENTRY

+_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,

+                   const GLvoid *indices)

+{

+   vbo_exec_DrawElements(mode, count, type, indices);

+}

+

+

+void GLAPIENTRY

+_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,

+			     const GLvoid *indices, GLint basevertex)

+{

+   vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex);

+}

+

+

+void GLAPIENTRY

+_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,

+                        GLenum type, const GLvoid *indices)

+{

+   vbo_exec_DrawRangeElements(mode, start, end, count, type, indices);

+}

+

+

+void GLAPIENTRY

+_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,

+				  GLsizei count, GLenum type,

+				  const GLvoid *indices, GLint basevertex)

+{

+   vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,

+					indices, basevertex);

+}

+

+

+void GLAPIENTRY

+_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type,

+			   const GLvoid **indices, GLsizei primcount)

+{

+   vbo_exec_MultiDrawElements(mode, count, type, indices, primcount);

+}

+

+

+void GLAPIENTRY

+_mesa_MultiDrawElementsBaseVertex(GLenum mode,

+				  const GLsizei *count, GLenum type,

+				  const GLvoid **indices, GLsizei primcount,

+				  const GLint *basevertex)

+{

+   vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices,

+					primcount, basevertex);

+}

diff --git a/mesalib/src/mesa/vbo/vbo_exec_draw.c b/mesalib/src/mesa/vbo/vbo_exec_draw.c
index f8be83ea8..a2a098857 100644
--- a/mesalib/src/mesa/vbo/vbo_exec_draw.c
+++ b/mesalib/src/mesa/vbo/vbo_exec_draw.c
@@ -1,421 +1,421 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.2
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- *    Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#include "main/glheader.h"
-#include "main/bufferobj.h"
-#include "main/compiler.h"
-#include "main/enums.h"
-#include "main/mfeatures.h"
-#include "main/state.h"
-
-#include "vbo_context.h"
-
-
-#if FEATURE_beginend
-
-
-static void
-vbo_exec_debug_verts( struct vbo_exec_context *exec )
-{
-   GLuint count = exec->vtx.vert_count;
-   GLuint i;
-
-   printf("%s: %u vertices %d primitives, %d vertsize\n",
-	  __FUNCTION__,
-	  count,
-	  exec->vtx.prim_count,
-	  exec->vtx.vertex_size);
-
-   for (i = 0 ; i < exec->vtx.prim_count ; i++) {
-      struct _mesa_prim *prim = &exec->vtx.prim[i];
-      printf("   prim %d: %s%s %d..%d %s %s\n",
-	     i, 
-	     _mesa_lookup_prim_by_nr(prim->mode),
-	     prim->weak ? " (weak)" : "",
-	     prim->start, 
-	     prim->start + prim->count,
-	     prim->begin ? "BEGIN" : "(wrap)",
-	     prim->end ? "END" : "(wrap)");
-   }
-}
-
-
-/*
- * NOTE: Need to have calculated primitives by this point -- do it on the fly.
- * NOTE: Old 'parity' issue is gone.
- */
-static GLuint
-vbo_copy_vertices( struct vbo_exec_context *exec )
-{
-   GLuint nr = exec->vtx.prim[exec->vtx.prim_count-1].count;
-   GLuint ovf, i;
-   GLuint sz = exec->vtx.vertex_size;
-   GLfloat *dst = exec->vtx.copied.buffer;
-   const GLfloat *src = (exec->vtx.buffer_map + 
-                         exec->vtx.prim[exec->vtx.prim_count-1].start * 
-                         exec->vtx.vertex_size);
-
-
-   switch (exec->ctx->Driver.CurrentExecPrimitive) {
-   case GL_POINTS:
-      return 0;
-   case GL_LINES:
-      ovf = nr&1;
-      for (i = 0 ; i < ovf ; i++)
-	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
-      return i;
-   case GL_TRIANGLES:
-      ovf = nr%3;
-      for (i = 0 ; i < ovf ; i++)
-	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
-      return i;
-   case GL_QUADS:
-      ovf = nr&3;
-      for (i = 0 ; i < ovf ; i++)
-	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
-      return i;
-   case GL_LINE_STRIP:
-      if (nr == 0) {
-	 return 0;
-      }
-      else {
-	 memcpy( dst, src+(nr-1)*sz, sz * sizeof(GLfloat) );
-	 return 1;
-      }
-   case GL_LINE_LOOP:
-   case GL_TRIANGLE_FAN:
-   case GL_POLYGON:
-      if (nr == 0) {
-	 return 0;
-      }
-      else if (nr == 1) {
-	 memcpy( dst, src+0, sz * sizeof(GLfloat) );
-	 return 1;
-      }
-      else {
-	 memcpy( dst, src+0, sz * sizeof(GLfloat) );
-	 memcpy( dst+sz, src+(nr-1)*sz, sz * sizeof(GLfloat) );
-	 return 2;
-      }
-   case GL_TRIANGLE_STRIP:
-      /* no parity issue, but need to make sure the tri is not drawn twice */
-      if (nr & 1) {
-	 exec->vtx.prim[exec->vtx.prim_count-1].count--;
-      }
-      /* fallthrough */
-   case GL_QUAD_STRIP:
-      switch (nr) {
-      case 0:
-         ovf = 0;
-         break;
-      case 1:
-         ovf = 1;
-         break;
-      default:
-         ovf = 2 + (nr & 1);
-         break;
-      }
-      for (i = 0 ; i < ovf ; i++)
-	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );
-      return i;
-   case PRIM_OUTSIDE_BEGIN_END:
-      return 0;
-   default:
-      assert(0);
-      return 0;
-   }
-}
-
-
-
-/* TODO: populate these as the vertex is defined:
- */
-static void
-vbo_exec_bind_arrays( struct gl_context *ctx )
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_exec_context *exec = &vbo->exec;
-   struct gl_client_array *arrays = exec->vtx.arrays;
-   const GLuint count = exec->vtx.vert_count;
-   const GLuint *map;
-   GLuint attr;
-   GLbitfield varying_inputs = 0x0;
-
-   /* Install the default (ie Current) attributes first, then overlay
-    * all active ones.
-    */
-   switch (get_program_mode(exec->ctx)) {
-   case VP_NONE:
-      for (attr = 0; attr < 16; attr++) {
-         exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];
-      }
-      for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
-         ASSERT(attr + 16 < Elements(exec->vtx.inputs));
-         exec->vtx.inputs[attr + 16] = &vbo->mat_currval[attr];
-      }
-      map = vbo->map_vp_none;
-      break;
-   case VP_NV:
-   case VP_ARB:
-      /* The aliasing of attributes for NV vertex programs has already
-       * occurred.  NV vertex programs cannot access material values,
-       * nor attributes greater than VERT_ATTRIB_TEX7.  
-       */
-      for (attr = 0; attr < 16; attr++) {
-         exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];
-         ASSERT(attr + 16 < Elements(exec->vtx.inputs));
-         exec->vtx.inputs[attr + 16] = &vbo->generic_currval[attr];
-      }
-      map = vbo->map_vp_arb;
-
-      /* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
-       * In that case we effectively need to route the data from
-       * glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
-       */
-      if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
-          (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
-         exec->vtx.inputs[16] = exec->vtx.inputs[0];
-         exec->vtx.attrsz[16] = exec->vtx.attrsz[0];
-         exec->vtx.attrptr[16] = exec->vtx.attrptr[0];
-         exec->vtx.attrsz[0] = 0;
-      }
-      break;
-   default:
-      assert(0);
-   }
-
-   /* Make all active attributes (including edgeflag) available as
-    * arrays of floats.
-    */
-   for (attr = 0; attr < VERT_ATTRIB_MAX ; attr++) {
-      const GLuint src = map[attr];
-
-      if (exec->vtx.attrsz[src]) {
-	 GLsizeiptr offset = (GLbyte *)exec->vtx.attrptr[src] -
-	    (GLbyte *)exec->vtx.vertex;
-
-         /* override the default array set above */
-         ASSERT(attr < Elements(exec->vtx.inputs));
-         ASSERT(attr < Elements(exec->vtx.arrays)); /* arrays[] */
-         exec->vtx.inputs[attr] = &arrays[attr];
-
-         if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
-            /* a real buffer obj: Ptr is an offset, not a pointer*/
-            assert(exec->vtx.bufferobj->Pointer);  /* buf should be mapped */
-            assert(offset >= 0);
-            arrays[attr].Ptr = (GLubyte *)exec->vtx.bufferobj->Offset + offset;
-         }
-         else {
-            /* Ptr into ordinary app memory */
-            arrays[attr].Ptr = (GLubyte *)exec->vtx.buffer_map + offset;
-         }
-	 arrays[attr].Size = exec->vtx.attrsz[src];
-	 arrays[attr].StrideB = exec->vtx.vertex_size * sizeof(GLfloat);
-	 arrays[attr].Stride = exec->vtx.vertex_size * sizeof(GLfloat);
-	 arrays[attr].Type = GL_FLOAT;
-         arrays[attr].Format = GL_RGBA;
-	 arrays[attr].Enabled = 1;
-         _mesa_reference_buffer_object(ctx,
-                                       &arrays[attr].BufferObj,
-                                       exec->vtx.bufferobj);
-	 arrays[attr]._MaxElement = count; /* ??? */
-
-         varying_inputs |= 1 << attr;
-         ctx->NewState |= _NEW_ARRAY;
-      }
-   }
-
-   _mesa_set_varying_vp_inputs( ctx, varying_inputs );
-}
-
-
-static void
-vbo_exec_vtx_unmap( struct vbo_exec_context *exec )
-{
-   GLenum target = GL_ARRAY_BUFFER_ARB;
-
-   if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
-      struct gl_context *ctx = exec->ctx;
-      
-      if (ctx->Driver.FlushMappedBufferRange) {
-         GLintptr offset = exec->vtx.buffer_used - exec->vtx.bufferobj->Offset;
-         GLsizeiptr length = (exec->vtx.buffer_ptr - exec->vtx.buffer_map) * sizeof(float);
-
-         if (length)
-            ctx->Driver.FlushMappedBufferRange(ctx, target,
-                                               offset, length,
-                                               exec->vtx.bufferobj);
-      }
-
-      exec->vtx.buffer_used += (exec->vtx.buffer_ptr -
-                                exec->vtx.buffer_map) * sizeof(float);
-
-      assert(exec->vtx.buffer_used <= VBO_VERT_BUFFER_SIZE);
-      assert(exec->vtx.buffer_ptr != NULL);
-      
-      ctx->Driver.UnmapBuffer(ctx, target, exec->vtx.bufferobj);
-      exec->vtx.buffer_map = NULL;
-      exec->vtx.buffer_ptr = NULL;
-      exec->vtx.max_vert = 0;
-   }
-}
-
-
-void
-vbo_exec_vtx_map( struct vbo_exec_context *exec )
-{
-   struct gl_context *ctx = exec->ctx;
-   const GLenum target = GL_ARRAY_BUFFER_ARB;
-   const GLenum access = GL_READ_WRITE_ARB; /* for MapBuffer */
-   const GLenum accessRange = GL_MAP_WRITE_BIT |  /* for MapBufferRange */
-                              GL_MAP_INVALIDATE_RANGE_BIT |
-                              GL_MAP_UNSYNCHRONIZED_BIT |
-                              GL_MAP_FLUSH_EXPLICIT_BIT |
-                              MESA_MAP_NOWAIT_BIT;
-   const GLenum usage = GL_STREAM_DRAW_ARB;
-   
-   if (!_mesa_is_bufferobj(exec->vtx.bufferobj))
-      return;
-
-   if (exec->vtx.buffer_map != NULL) {
-      assert(0);
-      exec->vtx.buffer_map = NULL;
-      exec->vtx.buffer_ptr = NULL;
-   }
-
-   if (VBO_VERT_BUFFER_SIZE > exec->vtx.buffer_used + 1024 &&
-       ctx->Driver.MapBufferRange) {
-      exec->vtx.buffer_map = 
-         (GLfloat *)ctx->Driver.MapBufferRange(ctx, 
-                                               target, 
-                                               exec->vtx.buffer_used,
-                                               (VBO_VERT_BUFFER_SIZE - 
-                                                exec->vtx.buffer_used),
-                                               accessRange,
-                                               exec->vtx.bufferobj);
-      exec->vtx.buffer_ptr = exec->vtx.buffer_map;
-   }
-   
-   if (!exec->vtx.buffer_map) {
-      exec->vtx.buffer_used = 0;
-
-      ctx->Driver.BufferData(ctx, target, 
-                             VBO_VERT_BUFFER_SIZE, 
-                             NULL, usage, exec->vtx.bufferobj);
-
-
-      if (ctx->Driver.MapBufferRange)
-         exec->vtx.buffer_map = 
-            (GLfloat *)ctx->Driver.MapBufferRange(ctx, target,
-                                                  0, VBO_VERT_BUFFER_SIZE,
-                                                  accessRange,
-                                                  exec->vtx.bufferobj);
-      if (!exec->vtx.buffer_map)
-         exec->vtx.buffer_map =
-            (GLfloat *)ctx->Driver.MapBuffer(ctx, target, access, exec->vtx.bufferobj);
-      assert(exec->vtx.buffer_map);
-      exec->vtx.buffer_ptr = exec->vtx.buffer_map;
-   }
-
-   if (0)
-      printf("map %d..\n", exec->vtx.buffer_used);
-}
-
-
-
-/**
- * Execute the buffer and save copied verts.
- */
-void
-vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap )
-{
-   if (0)
-      vbo_exec_debug_verts( exec );
-
-   if (exec->vtx.prim_count && 
-       exec->vtx.vert_count) {
-
-      exec->vtx.copied.nr = vbo_copy_vertices( exec ); 
-
-      if (exec->vtx.copied.nr != exec->vtx.vert_count) {
-	 struct gl_context *ctx = exec->ctx;
-	 
-	 /* Before the update_state() as this may raise _NEW_ARRAY
-          * from _mesa_set_varying_vp_inputs().
-	  */
-	 vbo_exec_bind_arrays( ctx );
-
-         if (ctx->NewState)
-            _mesa_update_state( ctx );
-
-         if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
-            vbo_exec_vtx_unmap( exec );
-         }
-
-         if (0)
-            printf("%s %d %d\n", __FUNCTION__, exec->vtx.prim_count,
-		   exec->vtx.vert_count);
-
-	 vbo_context(ctx)->draw_prims( ctx, 
-				       exec->vtx.inputs, 
-				       exec->vtx.prim, 
-				       exec->vtx.prim_count,
-				       NULL,
-				       GL_TRUE,
-				       0,
-				       exec->vtx.vert_count - 1);
-
-	 /* If using a real VBO, get new storage -- unless asked not to.
-          */
-         if (_mesa_is_bufferobj(exec->vtx.bufferobj) && !unmap) {
-            vbo_exec_vtx_map( exec );
-         }
-      }
-   }
-
-   /* May have to unmap explicitly if we didn't draw:
-    */
-   if (unmap && 
-       _mesa_is_bufferobj(exec->vtx.bufferobj) &&
-       exec->vtx.buffer_map) {
-      vbo_exec_vtx_unmap( exec );
-   }
-
-
-   if (unmap || exec->vtx.vertex_size == 0)
-      exec->vtx.max_vert = 0;
-   else
-      exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) / 
-                            (exec->vtx.vertex_size * sizeof(GLfloat)));
-
-   exec->vtx.buffer_ptr = exec->vtx.buffer_map;
-   exec->vtx.prim_count = 0;
-   exec->vtx.vert_count = 0;
-}
-
-
-#endif /* FEATURE_beginend */
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.2

+ *

+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ *

+ * Authors:

+ *    Keith Whitwell <keith@tungstengraphics.com>

+ */

+

+#include "main/glheader.h"

+#include "main/bufferobj.h"

+#include "main/compiler.h"

+#include "main/enums.h"

+#include "main/mfeatures.h"

+#include "main/state.h"

+

+#include "vbo_context.h"

+

+

+#if FEATURE_beginend

+

+

+static void

+vbo_exec_debug_verts( struct vbo_exec_context *exec )

+{

+   GLuint count = exec->vtx.vert_count;

+   GLuint i;

+

+   printf("%s: %u vertices %d primitives, %d vertsize\n",

+	  __FUNCTION__,

+	  count,

+	  exec->vtx.prim_count,

+	  exec->vtx.vertex_size);

+

+   for (i = 0 ; i < exec->vtx.prim_count ; i++) {

+      struct _mesa_prim *prim = &exec->vtx.prim[i];

+      printf("   prim %d: %s%s %d..%d %s %s\n",

+	     i, 

+	     _mesa_lookup_prim_by_nr(prim->mode),

+	     prim->weak ? " (weak)" : "",

+	     prim->start, 

+	     prim->start + prim->count,

+	     prim->begin ? "BEGIN" : "(wrap)",

+	     prim->end ? "END" : "(wrap)");

+   }

+}

+

+

+/*

+ * NOTE: Need to have calculated primitives by this point -- do it on the fly.

+ * NOTE: Old 'parity' issue is gone.

+ */

+static GLuint

+vbo_copy_vertices( struct vbo_exec_context *exec )

+{

+   GLuint nr = exec->vtx.prim[exec->vtx.prim_count-1].count;

+   GLuint ovf, i;

+   GLuint sz = exec->vtx.vertex_size;

+   GLfloat *dst = exec->vtx.copied.buffer;

+   const GLfloat *src = (exec->vtx.buffer_map + 

+                         exec->vtx.prim[exec->vtx.prim_count-1].start * 

+                         exec->vtx.vertex_size);

+

+

+   switch (exec->ctx->Driver.CurrentExecPrimitive) {

+   case GL_POINTS:

+      return 0;

+   case GL_LINES:

+      ovf = nr&1;

+      for (i = 0 ; i < ovf ; i++)

+	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );

+      return i;

+   case GL_TRIANGLES:

+      ovf = nr%3;

+      for (i = 0 ; i < ovf ; i++)

+	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );

+      return i;

+   case GL_QUADS:

+      ovf = nr&3;

+      for (i = 0 ; i < ovf ; i++)

+	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );

+      return i;

+   case GL_LINE_STRIP:

+      if (nr == 0) {

+	 return 0;

+      }

+      else {

+	 memcpy( dst, src+(nr-1)*sz, sz * sizeof(GLfloat) );

+	 return 1;

+      }

+   case GL_LINE_LOOP:

+   case GL_TRIANGLE_FAN:

+   case GL_POLYGON:

+      if (nr == 0) {

+	 return 0;

+      }

+      else if (nr == 1) {

+	 memcpy( dst, src+0, sz * sizeof(GLfloat) );

+	 return 1;

+      }

+      else {

+	 memcpy( dst, src+0, sz * sizeof(GLfloat) );

+	 memcpy( dst+sz, src+(nr-1)*sz, sz * sizeof(GLfloat) );

+	 return 2;

+      }

+   case GL_TRIANGLE_STRIP:

+      /* no parity issue, but need to make sure the tri is not drawn twice */

+      if (nr & 1) {

+	 exec->vtx.prim[exec->vtx.prim_count-1].count--;

+      }

+      /* fallthrough */

+   case GL_QUAD_STRIP:

+      switch (nr) {

+      case 0:

+         ovf = 0;

+         break;

+      case 1:

+         ovf = 1;

+         break;

+      default:

+         ovf = 2 + (nr & 1);

+         break;

+      }

+      for (i = 0 ; i < ovf ; i++)

+	 memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz * sizeof(GLfloat) );

+      return i;

+   case PRIM_OUTSIDE_BEGIN_END:

+      return 0;

+   default:

+      assert(0);

+      return 0;

+   }

+}

+

+

+

+/* TODO: populate these as the vertex is defined:

+ */

+static void

+vbo_exec_bind_arrays( struct gl_context *ctx )

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_exec_context *exec = &vbo->exec;

+   struct gl_client_array *arrays = exec->vtx.arrays;

+   const GLuint count = exec->vtx.vert_count;

+   const GLuint *map;

+   GLuint attr;

+   GLbitfield varying_inputs = 0x0;

+

+   /* Install the default (ie Current) attributes first, then overlay

+    * all active ones.

+    */

+   switch (get_program_mode(exec->ctx)) {

+   case VP_NONE:

+      for (attr = 0; attr < 16; attr++) {

+         exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];

+      }

+      for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {

+         ASSERT(attr + 16 < Elements(exec->vtx.inputs));

+         exec->vtx.inputs[attr + 16] = &vbo->mat_currval[attr];

+      }

+      map = vbo->map_vp_none;

+      break;

+   case VP_NV:

+   case VP_ARB:

+      /* The aliasing of attributes for NV vertex programs has already

+       * occurred.  NV vertex programs cannot access material values,

+       * nor attributes greater than VERT_ATTRIB_TEX7.  

+       */

+      for (attr = 0; attr < 16; attr++) {

+         exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];

+         ASSERT(attr + 16 < Elements(exec->vtx.inputs));

+         exec->vtx.inputs[attr + 16] = &vbo->generic_currval[attr];

+      }

+      map = vbo->map_vp_arb;

+

+      /* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.

+       * In that case we effectively need to route the data from

+       * glVertexAttrib(0, val) calls to feed into the GENERIC0 input.

+       */

+      if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&

+          (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {

+         exec->vtx.inputs[16] = exec->vtx.inputs[0];

+         exec->vtx.attrsz[16] = exec->vtx.attrsz[0];

+         exec->vtx.attrptr[16] = exec->vtx.attrptr[0];

+         exec->vtx.attrsz[0] = 0;

+      }

+      break;

+   default:

+      assert(0);

+   }

+

+   /* Make all active attributes (including edgeflag) available as

+    * arrays of floats.

+    */

+   for (attr = 0; attr < VERT_ATTRIB_MAX ; attr++) {

+      const GLuint src = map[attr];

+

+      if (exec->vtx.attrsz[src]) {

+	 GLsizeiptr offset = (GLbyte *)exec->vtx.attrptr[src] -

+	    (GLbyte *)exec->vtx.vertex;

+

+         /* override the default array set above */

+         ASSERT(attr < Elements(exec->vtx.inputs));

+         ASSERT(attr < Elements(exec->vtx.arrays)); /* arrays[] */

+         exec->vtx.inputs[attr] = &arrays[attr];

+

+         if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {

+            /* a real buffer obj: Ptr is an offset, not a pointer*/

+            assert(exec->vtx.bufferobj->Pointer);  /* buf should be mapped */

+            assert(offset >= 0);

+            arrays[attr].Ptr = (GLubyte *)exec->vtx.bufferobj->Offset + offset;

+         }

+         else {

+            /* Ptr into ordinary app memory */

+            arrays[attr].Ptr = (GLubyte *)exec->vtx.buffer_map + offset;

+         }

+	 arrays[attr].Size = exec->vtx.attrsz[src];

+	 arrays[attr].StrideB = exec->vtx.vertex_size * sizeof(GLfloat);

+	 arrays[attr].Stride = exec->vtx.vertex_size * sizeof(GLfloat);

+	 arrays[attr].Type = GL_FLOAT;

+         arrays[attr].Format = GL_RGBA;

+	 arrays[attr].Enabled = 1;

+         _mesa_reference_buffer_object(ctx,

+                                       &arrays[attr].BufferObj,

+                                       exec->vtx.bufferobj);

+	 arrays[attr]._MaxElement = count; /* ??? */

+

+         varying_inputs |= 1 << attr;

+         ctx->NewState |= _NEW_ARRAY;

+      }

+   }

+

+   _mesa_set_varying_vp_inputs( ctx, varying_inputs );

+}

+

+

+static void

+vbo_exec_vtx_unmap( struct vbo_exec_context *exec )

+{

+   GLenum target = GL_ARRAY_BUFFER_ARB;

+

+   if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {

+      struct gl_context *ctx = exec->ctx;

+      

+      if (ctx->Driver.FlushMappedBufferRange) {

+         GLintptr offset = exec->vtx.buffer_used - exec->vtx.bufferobj->Offset;

+         GLsizeiptr length = (exec->vtx.buffer_ptr - exec->vtx.buffer_map) * sizeof(float);

+

+         if (length)

+            ctx->Driver.FlushMappedBufferRange(ctx, target,

+                                               offset, length,

+                                               exec->vtx.bufferobj);

+      }

+

+      exec->vtx.buffer_used += (exec->vtx.buffer_ptr -

+                                exec->vtx.buffer_map) * sizeof(float);

+

+      assert(exec->vtx.buffer_used <= VBO_VERT_BUFFER_SIZE);

+      assert(exec->vtx.buffer_ptr != NULL);

+      

+      ctx->Driver.UnmapBuffer(ctx, target, exec->vtx.bufferobj);

+      exec->vtx.buffer_map = NULL;

+      exec->vtx.buffer_ptr = NULL;

+      exec->vtx.max_vert = 0;

+   }

+}

+

+

+void

+vbo_exec_vtx_map( struct vbo_exec_context *exec )

+{

+   struct gl_context *ctx = exec->ctx;

+   const GLenum target = GL_ARRAY_BUFFER_ARB;

+   const GLenum access = GL_READ_WRITE_ARB; /* for MapBuffer */

+   const GLenum accessRange = GL_MAP_WRITE_BIT |  /* for MapBufferRange */

+                              GL_MAP_INVALIDATE_RANGE_BIT |

+                              GL_MAP_UNSYNCHRONIZED_BIT |

+                              GL_MAP_FLUSH_EXPLICIT_BIT |

+                              MESA_MAP_NOWAIT_BIT;

+   const GLenum usage = GL_STREAM_DRAW_ARB;

+   

+   if (!_mesa_is_bufferobj(exec->vtx.bufferobj))

+      return;

+

+   if (exec->vtx.buffer_map != NULL) {

+      assert(0);

+      exec->vtx.buffer_map = NULL;

+      exec->vtx.buffer_ptr = NULL;

+   }

+

+   if (VBO_VERT_BUFFER_SIZE > exec->vtx.buffer_used + 1024 &&

+       ctx->Driver.MapBufferRange) {

+      exec->vtx.buffer_map = 

+         (GLfloat *)ctx->Driver.MapBufferRange(ctx, 

+                                               target, 

+                                               exec->vtx.buffer_used,

+                                               (VBO_VERT_BUFFER_SIZE - 

+                                                exec->vtx.buffer_used),

+                                               accessRange,

+                                               exec->vtx.bufferobj);

+      exec->vtx.buffer_ptr = exec->vtx.buffer_map;

+   }

+   

+   if (!exec->vtx.buffer_map) {

+      exec->vtx.buffer_used = 0;

+

+      ctx->Driver.BufferData(ctx, target, 

+                             VBO_VERT_BUFFER_SIZE, 

+                             NULL, usage, exec->vtx.bufferobj);

+

+

+      if (ctx->Driver.MapBufferRange)

+         exec->vtx.buffer_map = 

+            (GLfloat *)ctx->Driver.MapBufferRange(ctx, target,

+                                                  0, VBO_VERT_BUFFER_SIZE,

+                                                  accessRange,

+                                                  exec->vtx.bufferobj);

+      if (!exec->vtx.buffer_map)

+         exec->vtx.buffer_map =

+            (GLfloat *)ctx->Driver.MapBuffer(ctx, target, access, exec->vtx.bufferobj);

+      assert(exec->vtx.buffer_map);

+      exec->vtx.buffer_ptr = exec->vtx.buffer_map;

+   }

+

+   if (0)

+      printf("map %d..\n", exec->vtx.buffer_used);

+}

+

+

+

+/**

+ * Execute the buffer and save copied verts.

+ */

+void

+vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap )

+{

+   if (0)

+      vbo_exec_debug_verts( exec );

+

+   if (exec->vtx.prim_count && 

+       exec->vtx.vert_count) {

+

+      exec->vtx.copied.nr = vbo_copy_vertices( exec ); 

+

+      if (exec->vtx.copied.nr != exec->vtx.vert_count) {

+	 struct gl_context *ctx = exec->ctx;

+	 

+	 /* Before the update_state() as this may raise _NEW_ARRAY

+          * from _mesa_set_varying_vp_inputs().

+	  */

+	 vbo_exec_bind_arrays( ctx );

+

+         if (ctx->NewState)

+            _mesa_update_state( ctx );

+

+         if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {

+            vbo_exec_vtx_unmap( exec );

+         }

+

+         if (0)

+            printf("%s %d %d\n", __FUNCTION__, exec->vtx.prim_count,

+		   exec->vtx.vert_count);

+

+	 vbo_context(ctx)->draw_prims( ctx, 

+				       exec->vtx.inputs, 

+				       exec->vtx.prim, 

+				       exec->vtx.prim_count,

+				       NULL,

+				       GL_TRUE,

+				       0,

+				       exec->vtx.vert_count - 1);

+

+	 /* If using a real VBO, get new storage -- unless asked not to.

+          */

+         if (_mesa_is_bufferobj(exec->vtx.bufferobj) && !unmap) {

+            vbo_exec_vtx_map( exec );

+         }

+      }

+   }

+

+   /* May have to unmap explicitly if we didn't draw:

+    */

+   if (unmap && 

+       _mesa_is_bufferobj(exec->vtx.bufferobj) &&

+       exec->vtx.buffer_map) {

+      vbo_exec_vtx_unmap( exec );

+   }

+

+

+   if (unmap || exec->vtx.vertex_size == 0)

+      exec->vtx.max_vert = 0;

+   else

+      exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) / 

+                            (exec->vtx.vertex_size * sizeof(GLfloat)));

+

+   exec->vtx.buffer_ptr = exec->vtx.buffer_map;

+   exec->vtx.prim_count = 0;

+   exec->vtx.vert_count = 0;

+}

+

+

+#endif /* FEATURE_beginend */

diff --git a/mesalib/src/mesa/vbo/vbo_save_draw.c b/mesalib/src/mesa/vbo/vbo_save_draw.c
index 634a6d3f8..5a19b0d62 100644
--- a/mesalib/src/mesa/vbo/vbo_save_draw.c
+++ b/mesalib/src/mesa/vbo/vbo_save_draw.c
@@ -1,305 +1,305 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.2
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/* Author:
- *    Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#include "main/glheader.h"
-#include "main/bufferobj.h"
-#include "main/context.h"
-#include "main/imports.h"
-#include "main/mfeatures.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-#include "main/light.h"
-#include "main/state.h"
-
-#include "vbo_context.h"
-
-
-#if FEATURE_dlist
-
-
-/**
- * After playback, copy everything but the position from the
- * last vertex to the saved state
- */
-static void
-_playback_copy_to_current(struct gl_context *ctx,
-                          const struct vbo_save_vertex_list *node)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   GLfloat vertex[VBO_ATTRIB_MAX * 4];
-   GLfloat *data;
-   GLuint i, offset;
-
-   if (node->current_size == 0)
-      return;
-
-   if (node->current_data) {
-      data = node->current_data;
-   }
-   else {
-      data = vertex;
-
-      if (node->count)
-         offset = (node->buffer_offset + 
-                   (node->count-1) * node->vertex_size * sizeof(GLfloat));
-      else
-         offset = node->buffer_offset;
-
-      ctx->Driver.GetBufferSubData( ctx, 0, offset, 
-                                    node->vertex_size * sizeof(GLfloat), 
-                                    data, node->vertex_store->bufferobj );
-
-      data += node->attrsz[0]; /* skip vertex position */
-   }
-
-   for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) {
-      if (node->attrsz[i]) {
-	 GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;
-         GLfloat tmp[4];
-
-         COPY_CLEAN_4V(tmp, 
-                       node->attrsz[i], 
-                       data);
-         
-         if (memcmp(current, tmp, 4 * sizeof(GLfloat)) != 0) {
-            memcpy(current, tmp, 4 * sizeof(GLfloat));
-
-            vbo->currval[i].Size = node->attrsz[i];
-
-            if (i >= VBO_ATTRIB_FIRST_MATERIAL &&
-                i <= VBO_ATTRIB_LAST_MATERIAL)
-               ctx->NewState |= _NEW_LIGHT;
-
-            ctx->NewState |= _NEW_CURRENT_ATTRIB;
-         }
-
-	 data += node->attrsz[i];
-      }
-   }
-
-   /* Colormaterial -- this kindof sucks.
-    */
-   if (ctx->Light.ColorMaterialEnabled) {
-      _mesa_update_color_material(ctx, ctx->Current.Attrib[VBO_ATTRIB_COLOR0]);
-   }
-
-   /* CurrentExecPrimitive
-    */
-   if (node->prim_count) {
-      const struct _mesa_prim *prim = &node->prim[node->prim_count - 1];
-      if (prim->end)
-	 ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
-      else
-	 ctx->Driver.CurrentExecPrimitive = prim->mode;
-   }
-}
-
-
-
-/**
- * Treat the vertex storage as a VBO, define vertex arrays pointing
- * into it:
- */
-static void vbo_bind_vertex_list(struct gl_context *ctx,
-                                 const struct vbo_save_vertex_list *node)
-{
-   struct vbo_context *vbo = vbo_context(ctx);
-   struct vbo_save_context *save = &vbo->save;
-   struct gl_client_array *arrays = save->arrays;
-   GLuint buffer_offset = node->buffer_offset;
-   const GLuint *map;
-   GLuint attr;
-   GLubyte node_attrsz[VBO_ATTRIB_MAX];  /* copy of node->attrsz[] */
-   GLbitfield varying_inputs = 0x0;
-
-   memcpy(node_attrsz, node->attrsz, sizeof(node->attrsz));
-
-   /* Install the default (ie Current) attributes first, then overlay
-    * all active ones.
-    */
-   switch (get_program_mode(ctx)) {
-   case VP_NONE:
-      for (attr = 0; attr < 16; attr++) {
-         save->inputs[attr] = &vbo->legacy_currval[attr];
-      }
-      for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
-         save->inputs[attr + 16] = &vbo->mat_currval[attr];
-      }
-      map = vbo->map_vp_none;
-      break;
-   case VP_NV:
-   case VP_ARB:
-      /* The aliasing of attributes for NV vertex programs has already
-       * occurred.  NV vertex programs cannot access material values,
-       * nor attributes greater than VERT_ATTRIB_TEX7.  
-       */
-      for (attr = 0; attr < 16; attr++) {
-         save->inputs[attr] = &vbo->legacy_currval[attr];
-         save->inputs[attr + 16] = &vbo->generic_currval[attr];
-      }
-      map = vbo->map_vp_arb;
-
-      /* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
-       * In that case we effectively need to route the data from
-       * glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
-       */
-      if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
-          (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
-         save->inputs[16] = save->inputs[0];
-         node_attrsz[16] = node_attrsz[0];
-         node_attrsz[0] = 0;
-      }
-      break;
-   default:
-      assert(0);
-   }
-
-   for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
-      const GLuint src = map[attr];
-
-      if (node_attrsz[src]) {
-         /* override the default array set above */
-         save->inputs[attr] = &arrays[attr];
-
-	 arrays[attr].Ptr = (const GLubyte *) NULL + buffer_offset;
-	 arrays[attr].Size = node->attrsz[src];
-	 arrays[attr].StrideB = node->vertex_size * sizeof(GLfloat);
-	 arrays[attr].Stride = node->vertex_size * sizeof(GLfloat);
-	 arrays[attr].Type = GL_FLOAT;
-         arrays[attr].Format = GL_RGBA;
-	 arrays[attr].Enabled = 1;
-         _mesa_reference_buffer_object(ctx,
-                                       &arrays[attr].BufferObj,
-                                       node->vertex_store->bufferobj);
-	 arrays[attr]._MaxElement = node->count; /* ??? */
-	 
-	 assert(arrays[attr].BufferObj->Name);
-
-	 buffer_offset += node->attrsz[src] * sizeof(GLfloat);
-         varying_inputs |= 1<<attr;
-         ctx->NewState |= _NEW_ARRAY;
-      }
-   }
-
-   _mesa_set_varying_vp_inputs( ctx, varying_inputs );
-}
-
-
-static void
-vbo_save_loopback_vertex_list(struct gl_context *ctx,
-                              const struct vbo_save_vertex_list *list)
-{
-   const char *buffer = ctx->Driver.MapBuffer(ctx, 
-					      GL_ARRAY_BUFFER_ARB, 
-					      GL_READ_ONLY, /* ? */
-                                              list->vertex_store->bufferobj);
-
-   vbo_loopback_vertex_list(ctx,
-                            (const GLfloat *)(buffer + list->buffer_offset),
-                            list->attrsz,
-                            list->prim,
-                            list->prim_count,
-                            list->wrap_count,
-                            list->vertex_size);
-
-   ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, 
-			   list->vertex_store->bufferobj);
-}
-
-
-/**
- * Execute the buffer and save copied verts.
- * This is called from the display list code when executing
- * a drawing command.
- */
-void
-vbo_save_playback_vertex_list(struct gl_context *ctx, void *data)
-{
-   const struct vbo_save_vertex_list *node =
-      (const struct vbo_save_vertex_list *) data;
-   struct vbo_save_context *save = &vbo_context(ctx)->save;
-
-   FLUSH_CURRENT(ctx, 0);
-
-   if (node->prim_count > 0 && node->count > 0) {
-
-      if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END &&
-	  node->prim[0].begin) {
-
-	 /* Degenerate case: list is called inside begin/end pair and
-	  * includes operations such as glBegin or glDrawArrays.
-	  */
-	 if (0)
-	    printf("displaylist recursive begin");
-
-	 vbo_save_loopback_vertex_list( ctx, node );
-	 return;
-      }
-      else if (save->replay_flags) {
-	 /* Various degnerate cases: translate into immediate mode
-	  * calls rather than trying to execute in place.
-	  */
-	 vbo_save_loopback_vertex_list( ctx, node );
-	 return;
-      }
-      
-      if (ctx->NewState)
-	 _mesa_update_state( ctx );
-
-      /* XXX also need to check if shader enabled, but invalid */
-      if ((ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) ||
-          (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBegin (invalid vertex/fragment program)");
-         return;
-      }
-
-      vbo_bind_vertex_list( ctx, node );
-
-      /* Again...
-       */
-      if (ctx->NewState)
-	 _mesa_update_state( ctx );
-
-      vbo_context(ctx)->draw_prims(ctx, 
-                                   save->inputs, 
-                                   node->prim, 
-                                   node->prim_count,
-                                   NULL,
-                                   GL_TRUE,
-                                   0,	/* Node is a VBO, so this is ok */
-                                   node->count - 1);
-   }
-
-   /* Copy to current?
-    */
-   _playback_copy_to_current( ctx, node );
-}
-
-
-#endif /* FEATURE_dlist */
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.2

+ *

+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/* Author:

+ *    Keith Whitwell <keith@tungstengraphics.com>

+ */

+

+#include "main/glheader.h"

+#include "main/bufferobj.h"

+#include "main/context.h"

+#include "main/imports.h"

+#include "main/mfeatures.h"

+#include "main/mtypes.h"

+#include "main/macros.h"

+#include "main/light.h"

+#include "main/state.h"

+

+#include "vbo_context.h"

+

+

+#if FEATURE_dlist

+

+

+/**

+ * After playback, copy everything but the position from the

+ * last vertex to the saved state

+ */

+static void

+_playback_copy_to_current(struct gl_context *ctx,

+                          const struct vbo_save_vertex_list *node)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   GLfloat vertex[VBO_ATTRIB_MAX * 4];

+   GLfloat *data;

+   GLuint i, offset;

+

+   if (node->current_size == 0)

+      return;

+

+   if (node->current_data) {

+      data = node->current_data;

+   }

+   else {

+      data = vertex;

+

+      if (node->count)

+         offset = (node->buffer_offset + 

+                   (node->count-1) * node->vertex_size * sizeof(GLfloat));

+      else

+         offset = node->buffer_offset;

+

+      ctx->Driver.GetBufferSubData( ctx, 0, offset, 

+                                    node->vertex_size * sizeof(GLfloat), 

+                                    data, node->vertex_store->bufferobj );

+

+      data += node->attrsz[0]; /* skip vertex position */

+   }

+

+   for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) {

+      if (node->attrsz[i]) {

+	 GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;

+         GLfloat tmp[4];

+

+         COPY_CLEAN_4V(tmp, 

+                       node->attrsz[i], 

+                       data);

+         

+         if (memcmp(current, tmp, 4 * sizeof(GLfloat)) != 0) {

+            memcpy(current, tmp, 4 * sizeof(GLfloat));

+

+            vbo->currval[i].Size = node->attrsz[i];

+

+            if (i >= VBO_ATTRIB_FIRST_MATERIAL &&

+                i <= VBO_ATTRIB_LAST_MATERIAL)

+               ctx->NewState |= _NEW_LIGHT;

+

+            ctx->NewState |= _NEW_CURRENT_ATTRIB;

+         }

+

+	 data += node->attrsz[i];

+      }

+   }

+

+   /* Colormaterial -- this kindof sucks.

+    */

+   if (ctx->Light.ColorMaterialEnabled) {

+      _mesa_update_color_material(ctx, ctx->Current.Attrib[VBO_ATTRIB_COLOR0]);

+   }

+

+   /* CurrentExecPrimitive

+    */

+   if (node->prim_count) {

+      const struct _mesa_prim *prim = &node->prim[node->prim_count - 1];

+      if (prim->end)

+	 ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;

+      else

+	 ctx->Driver.CurrentExecPrimitive = prim->mode;

+   }

+}

+

+

+

+/**

+ * Treat the vertex storage as a VBO, define vertex arrays pointing

+ * into it:

+ */

+static void vbo_bind_vertex_list(struct gl_context *ctx,

+                                 const struct vbo_save_vertex_list *node)

+{

+   struct vbo_context *vbo = vbo_context(ctx);

+   struct vbo_save_context *save = &vbo->save;

+   struct gl_client_array *arrays = save->arrays;

+   GLuint buffer_offset = node->buffer_offset;

+   const GLuint *map;

+   GLuint attr;

+   GLubyte node_attrsz[VBO_ATTRIB_MAX];  /* copy of node->attrsz[] */

+   GLbitfield varying_inputs = 0x0;

+

+   memcpy(node_attrsz, node->attrsz, sizeof(node->attrsz));

+

+   /* Install the default (ie Current) attributes first, then overlay

+    * all active ones.

+    */

+   switch (get_program_mode(ctx)) {

+   case VP_NONE:

+      for (attr = 0; attr < 16; attr++) {

+         save->inputs[attr] = &vbo->legacy_currval[attr];

+      }

+      for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {

+         save->inputs[attr + 16] = &vbo->mat_currval[attr];

+      }

+      map = vbo->map_vp_none;

+      break;

+   case VP_NV:

+   case VP_ARB:

+      /* The aliasing of attributes for NV vertex programs has already

+       * occurred.  NV vertex programs cannot access material values,

+       * nor attributes greater than VERT_ATTRIB_TEX7.  

+       */

+      for (attr = 0; attr < 16; attr++) {

+         save->inputs[attr] = &vbo->legacy_currval[attr];

+         save->inputs[attr + 16] = &vbo->generic_currval[attr];

+      }

+      map = vbo->map_vp_arb;

+

+      /* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.

+       * In that case we effectively need to route the data from

+       * glVertexAttrib(0, val) calls to feed into the GENERIC0 input.

+       */

+      if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&

+          (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {

+         save->inputs[16] = save->inputs[0];

+         node_attrsz[16] = node_attrsz[0];

+         node_attrsz[0] = 0;

+      }

+      break;

+   default:

+      assert(0);

+   }

+

+   for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {

+      const GLuint src = map[attr];

+

+      if (node_attrsz[src]) {

+         /* override the default array set above */

+         save->inputs[attr] = &arrays[attr];

+

+	 arrays[attr].Ptr = (const GLubyte *) NULL + buffer_offset;

+	 arrays[attr].Size = node->attrsz[src];

+	 arrays[attr].StrideB = node->vertex_size * sizeof(GLfloat);

+	 arrays[attr].Stride = node->vertex_size * sizeof(GLfloat);

+	 arrays[attr].Type = GL_FLOAT;

+         arrays[attr].Format = GL_RGBA;

+	 arrays[attr].Enabled = 1;

+         _mesa_reference_buffer_object(ctx,

+                                       &arrays[attr].BufferObj,

+                                       node->vertex_store->bufferobj);

+	 arrays[attr]._MaxElement = node->count; /* ??? */

+	 

+	 assert(arrays[attr].BufferObj->Name);

+

+	 buffer_offset += node->attrsz[src] * sizeof(GLfloat);

+         varying_inputs |= 1<<attr;

+         ctx->NewState |= _NEW_ARRAY;

+      }

+   }

+

+   _mesa_set_varying_vp_inputs( ctx, varying_inputs );

+}

+

+

+static void

+vbo_save_loopback_vertex_list(struct gl_context *ctx,

+                              const struct vbo_save_vertex_list *list)

+{

+   const char *buffer = ctx->Driver.MapBuffer(ctx, 

+					      GL_ARRAY_BUFFER_ARB, 

+					      GL_READ_ONLY, /* ? */

+                                              list->vertex_store->bufferobj);

+

+   vbo_loopback_vertex_list(ctx,

+                            (const GLfloat *)(buffer + list->buffer_offset),

+                            list->attrsz,

+                            list->prim,

+                            list->prim_count,

+                            list->wrap_count,

+                            list->vertex_size);

+

+   ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, 

+			   list->vertex_store->bufferobj);

+}

+

+

+/**

+ * Execute the buffer and save copied verts.

+ * This is called from the display list code when executing

+ * a drawing command.

+ */

+void

+vbo_save_playback_vertex_list(struct gl_context *ctx, void *data)

+{

+   const struct vbo_save_vertex_list *node =

+      (const struct vbo_save_vertex_list *) data;

+   struct vbo_save_context *save = &vbo_context(ctx)->save;

+

+   FLUSH_CURRENT(ctx, 0);

+

+   if (node->prim_count > 0 && node->count > 0) {

+

+      if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END &&

+	  node->prim[0].begin) {

+

+	 /* Degenerate case: list is called inside begin/end pair and

+	  * includes operations such as glBegin or glDrawArrays.

+	  */

+	 if (0)

+	    printf("displaylist recursive begin");

+

+	 vbo_save_loopback_vertex_list( ctx, node );

+	 return;

+      }

+      else if (save->replay_flags) {

+	 /* Various degnerate cases: translate into immediate mode

+	  * calls rather than trying to execute in place.

+	  */

+	 vbo_save_loopback_vertex_list( ctx, node );

+	 return;

+      }

+      

+      if (ctx->NewState)

+	 _mesa_update_state( ctx );

+

+      /* XXX also need to check if shader enabled, but invalid */

+      if ((ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) ||

+          (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled)) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "glBegin (invalid vertex/fragment program)");

+         return;

+      }

+

+      vbo_bind_vertex_list( ctx, node );

+

+      /* Again...

+       */

+      if (ctx->NewState)

+	 _mesa_update_state( ctx );

+

+      vbo_context(ctx)->draw_prims(ctx, 

+                                   save->inputs, 

+                                   node->prim, 

+                                   node->prim_count,

+                                   NULL,

+                                   GL_TRUE,

+                                   0,	/* Node is a VBO, so this is ok */

+                                   node->count - 1);

+   }

+

+   /* Copy to current?

+    */

+   _playback_copy_to_current( ctx, node );

+}

+

+

+#endif /* FEATURE_dlist */