aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/drivers/dri
diff options
context:
space:
mode:
Diffstat (limited to 'mesalib/src/mesa/drivers/dri')
-rw-r--r--mesalib/src/mesa/drivers/dri/common/dri_util.c2080
-rw-r--r--mesalib/src/mesa/drivers/dri/common/dri_util.h1126
-rw-r--r--mesalib/src/mesa/drivers/dri/common/spantmp2.h1872
-rw-r--r--mesalib/src/mesa/drivers/dri/common/texmem.c2682
-rw-r--r--mesalib/src/mesa/drivers/dri/swrast/swrast.c1640
5 files changed, 4700 insertions, 4700 deletions
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.c b/mesalib/src/mesa/drivers/dri/common/dri_util.c
index adc6716c6..6d6401934 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.c
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.c
@@ -1,1040 +1,1040 @@
-/**
- * \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;
- (void) renderType;
-
- 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_TYPE is the only
- * type likely to ever be supported for direct-rendering.
- * However, \c GLX_RGBA_FLOAT_TYPE_ARB may eventually be
- * supported by some drivers.
- * \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;
-
- (void) render_type;
-
- 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)
-{
- (void) dest;
- (void) src;
- (void) 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;
-
- (void) loaderPrivate;
-
- 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;
+ (void) renderType;
+
+ 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_TYPE is the only
+ * type likely to ever be supported for direct-rendering.
+ * However, \c GLX_RGBA_FLOAT_TYPE_ARB may eventually be
+ * supported by some drivers.
+ * \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;
+
+ (void) render_type;
+
+ 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)
+{
+ (void) dest;
+ (void) src;
+ (void) 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;
+
+ (void) loaderPrivate;
+
+ 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 8d2a38524..3d3d5c9cd 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/spantmp2.h b/mesalib/src/mesa/drivers/dri/common/spantmp2.h
index a398b778e..83cfbb164 100644
--- a/mesalib/src/mesa/drivers/dri/common/spantmp2.h
+++ b/mesalib/src/mesa/drivers/dri/common/spantmp2.h
@@ -1,936 +1,936 @@
-/*
- * Copyright 2000-2001 VA Linux Systems, Inc.
- * (C) Copyright IBM Corporation 2004
- * 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
- * on 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
- * VA LINUX SYSTEM, IBM AND/OR THEIR 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 spantmp2.h
- *
- * Template file of span read / write functions.
- *
- * \author Keith Whitwell <keithw@tungstengraphics.com>
- * \author Gareth Hughes <gareth@nvidia.com>
- * \author Ian Romanick <idr@us.ibm.com>
- */
-
-#include "main/colormac.h"
-#include "spantmp_common.h"
-
-#ifndef DBG
-#define DBG 0
-#endif
-
-#ifndef HW_READ_CLIPLOOP
-#define HW_READ_CLIPLOOP() HW_CLIPLOOP()
-#endif
-
-#ifndef HW_WRITE_CLIPLOOP
-#define HW_WRITE_CLIPLOOP() HW_CLIPLOOP()
-#endif
-
-#if (SPANTMP_PIXEL_FMT == GL_RGB) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)
-
-/**
- ** GL_RGB, GL_UNSIGNED_SHORT_5_6_5
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_565( color[0], color[1], color[2] )
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
- PUT_VALUE(_x, _y, ((((int)r & 0xf8) << 8) | \
- (((int)g & 0xfc) << 3) | \
- (((int)b & 0xf8) >> 3))) \
-
-#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLushort p = GET_VALUE(_x, _y); \
- rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \
- rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \
- rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
- rgba[3] = 0xff; \
- } while (0)
-
-#elif (SPANTMP_PIXEL_FMT == GL_RGB) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5_REV)
-
-/**
- ** GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_565_REV( color[0], color[1], color[2] )
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
- PUT_VALUE(_x, _y, PACK_COLOR_565_REV( r, g, b ))
-
-#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLushort p = GET_VALUE(_x, _y); \
- p = p << 8 | p >> 8; \
- rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \
- rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \
- rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
- rgba[3] = 0xff; \
- } while (0)
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_4_4_4_4)
-
-/**
- ** GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_4444_REV(color[3], color[0], color[1], color[2])
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
- PUT_VALUE(_x, _y, PACK_COLOR_4444_REV(a, r, g, b)) \
-
-#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLushort p = GET_VALUE(_x, _y); \
- rgba[0] = ((p >> 0) & 0xf) * 0x11; \
- rgba[1] = ((p >> 12) & 0xf) * 0x11; \
- rgba[2] = ((p >> 4) & 0xf) * 0x11; \
- rgba[3] = ((p >> 8) & 0xf) * 0x11; \
- } while (0)
-
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_4_4_4_4_REV)
-
-/**
- ** GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_4444(color[3], color[0], color[1], color[2])
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
- PUT_VALUE(_x, _y, PACK_COLOR_4444(a, r, g, b)) \
-
-#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLushort p = GET_VALUE(_x, _y); \
- rgba[0] = ((p >> 8) & 0xf) * 0x11; \
- rgba[1] = ((p >> 4) & 0xf) * 0x11; \
- rgba[2] = ((p >> 0) & 0xf) * 0x11; \
- rgba[3] = ((p >> 12) & 0xf) * 0x11; \
- } while (0)
-
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_1_5_5_5_REV)
-
-/**
- ** GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_1555(color[3], color[0], color[1], color[2])
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
- PUT_VALUE(_x, _y, PACK_COLOR_1555(a, r, g, b)) \
-
-#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLushort p = GET_VALUE(_x, _y); \
- rgba[0] = ((p >> 7) & 0xf8) * 255 / 0xf8; \
- rgba[1] = ((p >> 2) & 0xf8) * 255 / 0xf8; \
- rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
- rgba[3] = ((p >> 15) & 0x1) * 0xff; \
- } while (0)
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_1_5_5_5)
-
-/**
- ** GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_1555_REV(color[3], color[0], color[1], color[2])
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
- PUT_VALUE(_x, _y, PACK_COLOR_1555_REV(a, r, g, b)) \
-
-#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLushort p = GET_VALUE(_x, _y); \
- p = p << 8 | p >> 8; \
- rgba[0] = ((p >> 7) & 0xf8) * 255 / 0xf8; \
- rgba[1] = ((p >> 2) & 0xf8) * 255 / 0xf8; \
- rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
- rgba[3] = ((p >> 15) & 0x1) * 0xff; \
- } while (0)
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
-
-/**
- ** GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-# define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_8888(color[3], color[0], color[1], color[2])
-
-# define WRITE_RGBA(_x, _y, r, g, b, a) \
- PUT_VALUE(_x, _y, ((r << 16) | \
- (g << 8) | \
- (b << 0) | \
- (a << 24)))
-
-#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
-
-# if defined( USE_X86_ASM )
-# define READ_RGBA(rgba, _x, _y) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- __asm__ __volatile__( "bswap %0; rorl $8, %0" \
- : "=r" (p) : "0" (p) ); \
- ((GLuint *)rgba)[0] = p; \
- } while (0)
-# elif defined( MESA_BIG_ENDIAN )
- /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
- * rotlwi instruction. It also produces good code on SPARC.
- */
-# define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- GLuint t = p; \
- *((uint32_t *) rgba) = (t >> 24) | (p << 8); \
- } while (0)
-# else
-# define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- rgba[0] = (p >> 16) & 0xff; \
- rgba[1] = (p >> 8) & 0xff; \
- rgba[2] = (p >> 0) & 0xff; \
- rgba[3] = (p >> 24) & 0xff; \
- } while (0)
-# endif
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8)
-
-/**
- ** GL_BGRA, GL_UNSIGNED_INT_8_8_8_8
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-# define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_8888(color[2], color[1], color[0], color[3])
-
-# define WRITE_RGBA(_x, _y, r, g, b, a) \
- PUT_VALUE(_x, _y, ((r << 8) | \
- (g << 16) | \
- (b << 24) | \
- (a << 0)))
-
-#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
-
-# if defined( USE_X86_ASM )
-# define READ_RGBA(rgba, _x, _y) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- __asm__ __volatile__( "rorl $8, %0" \
- : "=r" (p) : "0" (p) ); \
- ((GLuint *)rgba)[0] = p; \
- } while (0)
-# elif defined( MESA_BIG_ENDIAN )
- /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
- * rotlwi instruction. It also produces good code on SPARC.
- */
-# define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLuint p = CPU_TO_LE32(GET_VALUE(_x, _y)); \
- GLuint t = p; \
- *((uint32_t *) rgba) = (t >> 24) | (p << 8); \
- } while (0)
-# else
-# define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- rgba[0] = (p >> 8) & 0xff; \
- rgba[1] = (p >> 16) & 0xff; \
- rgba[2] = (p >> 24) & 0xff; \
- rgba[3] = (p >> 0) & 0xff; \
- } while (0)
-# endif
-
-#elif (SPANTMP_PIXEL_FMT == GL_BGR) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
-
-/**
- ** GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV
- **
- ** This is really for MESA_FORMAT_XRGB8888. The spantmp code needs to be
- ** kicked to the curb, and we need to just code-gen this.
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-# define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_8888(0xff, color[0], color[1], color[2])
-
-# define WRITE_RGBA(_x, _y, r, g, b, a) \
- PUT_VALUE(_x, _y, ((r << 16) | \
- (g << 8) | \
- (b << 0) | \
- (0xff << 24)))
-
-#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
-
-# if defined( USE_X86_ASM )
-# define READ_RGBA(rgba, _x, _y) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- __asm__ __volatile__( "bswap %0; rorl $8, %0" \
- : "=r" (p) : "0" (p) ); \
- ((GLuint *)rgba)[0] = p | 0xff000000; \
- } while (0)
-# elif defined( MESA_BIG_ENDIAN )
- /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
- * rotlwi instruction. It also produces good code on SPARC.
- */
-# define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- *((uint32_t *) rgba) = (p << 8) | 0xff; \
- } while (0)
-# else
-# define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLuint p = GET_VALUE(_x, _y); \
- rgba[0] = (p >> 16) & 0xff; \
- rgba[1] = (p >> 8) & 0xff; \
- rgba[2] = (p >> 0) & 0xff; \
- rgba[3] = 0xff; \
- } while (0)
-# endif
-
-#elif (SPANTMP_PIXEL_FMT == GL_ALPHA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_BYTE)
-
-/**
- ** GL_ALPHA, GL_UNSIGNED_BYTE
- **/
-
-#ifndef GET_VALUE
-#ifndef GET_PTR
-#define GET_PTR(_x, _y) ( buf + (_x) + (_y) * pitch)
-#endif
-
-#define GET_VALUE(_x, _y) *(volatile GLubyte *)(GET_PTR(_x, _y))
-#define PUT_VALUE(_x, _y, _v) *(volatile GLubyte *)(GET_PTR(_x, _y)) = (_v)
-#endif /* GET_VALUE */
-
-# define INIT_MONO_PIXEL(p, color) \
- p = color[3]
-
-# define WRITE_RGBA(_x, _y, r, g, b, a) \
- PUT_VALUE(_x, _y, a | (r & 0 /* quiet warnings */))
-
-#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
-
-#define READ_RGBA( rgba, _x, _y ) \
- do { \
- GLubyte p = GET_VALUE(_x, _y); \
- rgba[0] = 0; \
- rgba[1] = 0; \
- rgba[2] = 0; \
- rgba[3] = p; \
- } while (0)
-
-#else
-#error SPANTMP_PIXEL_FMT must be set to a valid value!
-#endif
-
-
-
-/**
- ** Assembly routines.
- **/
-
-#if defined( USE_MMX_ASM ) || defined( USE_SSE_ASM )
-#include "x86/read_rgba_span_x86.h"
-#include "x86/common_x86_asm.h"
-#endif
-
-static void TAG(WriteRGBASpan)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const void *values, const GLubyte mask[] )
-{
- (void) ctx;
-
- HW_WRITE_LOCK()
- {
- const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
- GLint x1;
- GLint n1;
- LOCAL_VARS;
-
- y = Y_FLIP(y);
-
- HW_WRITE_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
-
- if (DBG) fprintf(stderr, "WriteRGBASpan %d..%d (x1 %d)\n",
- (int)i, (int)n1, (int)x1);
-
- if (mask)
- {
- for (;n1>0;i++,x1++,n1--)
- if (mask[i])
- WRITE_RGBA( x1, y,
- rgba[i][0], rgba[i][1],
- rgba[i][2], rgba[i][3] );
- }
- else
- {
- for (;n1>0;i++,x1++,n1--)
- WRITE_RGBA( x1, y,
- rgba[i][0], rgba[i][1],
- rgba[i][2], rgba[i][3] );
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_WRITE_UNLOCK();
-}
-
-static void TAG(WriteRGBSpan)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const void *values, const GLubyte mask[] )
-{
- (void) ctx;
-
- HW_WRITE_LOCK()
- {
- const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
- GLint x1;
- GLint n1;
- LOCAL_VARS;
-
- y = Y_FLIP(y);
-
- HW_WRITE_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
-
- if (DBG) fprintf(stderr, "WriteRGBSpan %d..%d (x1 %d)\n",
- (int)i, (int)n1, (int)x1);
-
- if (mask)
- {
- for (;n1>0;i++,x1++,n1--)
- if (mask[i])
- WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 );
- }
- else
- {
- for (;n1>0;i++,x1++,n1--)
- WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 );
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_WRITE_UNLOCK();
-}
-
-static void TAG(WriteRGBAPixels)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- const void *values, const GLubyte mask[] )
-{
- (void) ctx;
-
- HW_WRITE_LOCK()
- {
- const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
- GLint i;
- LOCAL_VARS;
-
- if (DBG) fprintf(stderr, "WriteRGBAPixels\n");
-
- HW_WRITE_CLIPLOOP()
- {
- if (mask)
- {
- for (i=0;i<n;i++)
- {
- if (mask[i]) {
- const int fy = Y_FLIP(y[i]);
- if (CLIPPIXEL(x[i],fy))
- WRITE_RGBA( x[i], fy,
- rgba[i][0], rgba[i][1],
- rgba[i][2], rgba[i][3] );
- }
- }
- }
- else
- {
- for (i=0;i<n;i++)
- {
- const int fy = Y_FLIP(y[i]);
- if (CLIPPIXEL(x[i],fy))
- WRITE_RGBA( x[i], fy,
- rgba[i][0], rgba[i][1],
- rgba[i][2], rgba[i][3] );
- }
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_WRITE_UNLOCK();
-}
-
-
-static void TAG(WriteMonoRGBASpan)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const void *value, const GLubyte mask[] )
-{
- (void) ctx;
-
- HW_WRITE_LOCK()
- {
- const GLubyte *color = (const GLubyte *) value;
- GLint x1;
- GLint n1;
- LOCAL_VARS;
- INIT_MONO_PIXEL(p, color);
-
- y = Y_FLIP( y );
-
- if (DBG) fprintf(stderr, "WriteMonoRGBASpan\n");
-
- HW_WRITE_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
- if (mask)
- {
- for (;n1>0;i++,x1++,n1--)
- if (mask[i])
- WRITE_PIXEL( x1, y, p );
- }
- else
- {
- for (;n1>0;i++,x1++,n1--)
- WRITE_PIXEL( x1, y, p );
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_WRITE_UNLOCK();
-}
-
-
-static void TAG(WriteMonoRGBAPixels)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n,
- const GLint x[], const GLint y[],
- const void *value,
- const GLubyte mask[] )
-{
- (void) ctx;
-
- HW_WRITE_LOCK()
- {
- const GLubyte *color = (const GLubyte *) value;
- GLint i;
- LOCAL_VARS;
- INIT_MONO_PIXEL(p, color);
-
- if (DBG) fprintf(stderr, "WriteMonoRGBAPixels\n");
-
- HW_WRITE_CLIPLOOP()
- {
- if (mask)
- {
- for (i=0;i<n;i++)
- if (mask[i]) {
- int fy = Y_FLIP(y[i]);
- if (CLIPPIXEL( x[i], fy ))
- WRITE_PIXEL( x[i], fy, p );
- }
- }
- else
- {
- for (i=0;i<n;i++) {
- int fy = Y_FLIP(y[i]);
- if (CLIPPIXEL( x[i], fy ))
- WRITE_PIXEL( x[i], fy, p );
- }
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_WRITE_UNLOCK();
-}
-
-
-static void TAG(ReadRGBASpan)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y, void *values)
-{
- (void) ctx;
-
- HW_READ_LOCK()
- {
- GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
- GLint x1,n1;
- LOCAL_VARS;
-
- y = Y_FLIP(y);
-
- if (DBG) fprintf(stderr, "ReadRGBASpan\n");
-
- HW_READ_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
- for (;n1>0;i++,x1++,n1--)
- READ_RGBA( rgba[i], x1, y );
- }
- HW_ENDCLIPLOOP();
- }
- HW_READ_UNLOCK();
-}
-
-
-#if defined(GET_PTR) && \
- defined(USE_MMX_ASM) && \
- (((SPANTMP_PIXEL_FMT == GL_BGRA) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)) || \
- ((SPANTMP_PIXEL_FMT == GL_RGB) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)))
-static void TAG2(ReadRGBASpan,_MMX)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y, void *values)
-{
-#ifndef USE_INNER_EMMS
- /* The EMMS instruction is directly in-lined here because using GCC's
- * built-in _mm_empty function was found to utterly destroy performance.
- */
- __asm__ __volatile__( "emms" );
-#endif
-
- (void) ctx;
-
- HW_READ_LOCK()
- {
- GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
- GLint x1,n1;
- LOCAL_VARS;
-
- y = Y_FLIP(y);
-
- if (DBG) fprintf(stderr, "ReadRGBASpan\n");
-
- HW_READ_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
-
- {
- const void * src = GET_PTR( x1, y );
-#if (SPANTMP_PIXEL_FMT == GL_RGB) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)
- _generic_read_RGBA_span_RGB565_MMX( src, rgba[i], n1 );
-#else
- _generic_read_RGBA_span_BGRA8888_REV_MMX( src, rgba[i], n1 );
-#endif
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_READ_UNLOCK();
-#ifndef USE_INNER_EMMS
- __asm__ __volatile__( "emms" );
-#endif
-}
-#endif
-
-
-#if defined(GET_PTR) && \
- defined(USE_SSE_ASM) && \
- (SPANTMP_PIXEL_FMT == GL_BGRA) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
-static void TAG2(ReadRGBASpan,_SSE2)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- void *values)
-{
- (void) ctx;
-
- HW_READ_LOCK()
- {
- GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
- GLint x1,n1;
- LOCAL_VARS;
-
- y = Y_FLIP(y);
-
- if (DBG) fprintf(stderr, "ReadRGBASpan\n");
-
- HW_READ_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
-
- {
- const void * src = GET_PTR( x1, y );
- _generic_read_RGBA_span_BGRA8888_REV_SSE2( src, rgba[i], n1 );
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_READ_UNLOCK();
-}
-#endif
-
-#if defined(GET_PTR) && \
- defined(USE_SSE_ASM) && \
- (SPANTMP_PIXEL_FMT == GL_BGRA) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
-static void TAG2(ReadRGBASpan,_SSE)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- void *values)
-{
-#ifndef USE_INNER_EMMS
- /* The EMMS instruction is directly in-lined here because using GCC's
- * built-in _mm_empty function was found to utterly destroy performance.
- */
- __asm__ __volatile__( "emms" );
-#endif
-
- (void) ctx;
-
- HW_READ_LOCK()
- {
- GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
- GLint x1,n1;
- LOCAL_VARS;
-
- y = Y_FLIP(y);
-
- if (DBG) fprintf(stderr, "ReadRGBASpan\n");
-
- HW_READ_CLIPLOOP()
- {
- GLint i = 0;
- CLIPSPAN(x,y,n,x1,n1,i);
-
- {
- const void * src = GET_PTR( x1, y );
- _generic_read_RGBA_span_BGRA8888_REV_SSE( src, rgba[i], n1 );
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_READ_UNLOCK();
-#ifndef USE_INNER_EMMS
- __asm__ __volatile__( "emms" );
-#endif
-}
-#endif
-
-
-static void TAG(ReadRGBAPixels)( struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- void *values )
-{
- (void) ctx;
-
- HW_READ_LOCK()
- {
- GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
- GLint i;
- LOCAL_VARS;
-
- if (DBG) fprintf(stderr, "ReadRGBAPixels\n");
-
- HW_READ_CLIPLOOP()
- {
- for (i=0;i<n;i++) {
- int fy = Y_FLIP( y[i] );
- if (CLIPPIXEL( x[i], fy ))
- READ_RGBA( rgba[i], x[i], fy );
- }
- }
- HW_ENDCLIPLOOP();
- }
- HW_READ_UNLOCK();
-}
-
-static void TAG(InitPointers)(struct gl_renderbuffer *rb)
-{
- rb->PutRow = TAG(WriteRGBASpan);
- rb->PutRowRGB = TAG(WriteRGBSpan);
- rb->PutMonoRow = TAG(WriteMonoRGBASpan);
- rb->PutValues = TAG(WriteRGBAPixels);
- rb->PutMonoValues = TAG(WriteMonoRGBAPixels);
- rb->GetValues = TAG(ReadRGBAPixels);
-
-#if defined(GET_PTR)
-#if defined(USE_SSE_ASM) && \
- (SPANTMP_PIXEL_FMT == GL_BGRA) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
- if ( cpu_has_xmm2 ) {
- if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "SSE2" );
- rb->GetRow = TAG2(ReadRGBASpan, _SSE2);
- }
- else
-#endif
-#if defined(USE_SSE_ASM) && \
- (SPANTMP_PIXEL_FMT == GL_BGRA) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
- if ( cpu_has_xmm ) {
- if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "SSE" );
- rb->GetRow = TAG2(ReadRGBASpan, _SSE);
- }
- else
-#endif
-#if defined(USE_MMX_ASM) && \
- (((SPANTMP_PIXEL_FMT == GL_BGRA) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)) || \
- ((SPANTMP_PIXEL_FMT == GL_RGB) && \
- (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)))
- if ( cpu_has_mmx ) {
- if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "MMX" );
- rb->GetRow = TAG2(ReadRGBASpan, _MMX);
- }
- else
-#endif
-#endif /* GET_PTR */
- {
- if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "C" );
- rb->GetRow = TAG(ReadRGBASpan);
- }
-
-}
-
-
-#undef INIT_MONO_PIXEL
-#undef WRITE_PIXEL
-#undef WRITE_RGBA
-#undef READ_RGBA
-#undef TAG
-#undef TAG2
-#undef GET_VALUE
-#undef PUT_VALUE
-#undef GET_PTR
-#undef SPANTMP_PIXEL_FMT
-#undef SPANTMP_PIXEL_TYPE
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * (C) Copyright IBM Corporation 2004
+ * 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
+ * on 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
+ * VA LINUX SYSTEM, IBM AND/OR THEIR 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 spantmp2.h
+ *
+ * Template file of span read / write functions.
+ *
+ * \author Keith Whitwell <keithw@tungstengraphics.com>
+ * \author Gareth Hughes <gareth@nvidia.com>
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#include "main/colormac.h"
+#include "spantmp_common.h"
+
+#ifndef DBG
+#define DBG 0
+#endif
+
+#ifndef HW_READ_CLIPLOOP
+#define HW_READ_CLIPLOOP() HW_CLIPLOOP()
+#endif
+
+#ifndef HW_WRITE_CLIPLOOP
+#define HW_WRITE_CLIPLOOP() HW_CLIPLOOP()
+#endif
+
+#if (SPANTMP_PIXEL_FMT == GL_RGB) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)
+
+/**
+ ** GL_RGB, GL_UNSIGNED_SHORT_5_6_5
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_565( color[0], color[1], color[2] )
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ PUT_VALUE(_x, _y, ((((int)r & 0xf8) << 8) | \
+ (((int)g & 0xfc) << 3) | \
+ (((int)b & 0xf8) >> 3))) \
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = GET_VALUE(_x, _y); \
+ rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \
+ rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \
+ rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
+ rgba[3] = 0xff; \
+ } while (0)
+
+#elif (SPANTMP_PIXEL_FMT == GL_RGB) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5_REV)
+
+/**
+ ** GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_565_REV( color[0], color[1], color[2] )
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ PUT_VALUE(_x, _y, PACK_COLOR_565_REV( r, g, b ))
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = GET_VALUE(_x, _y); \
+ p = p << 8 | p >> 8; \
+ rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \
+ rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \
+ rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
+ rgba[3] = 0xff; \
+ } while (0)
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_4_4_4_4)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_4444_REV(color[3], color[0], color[1], color[2])
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ PUT_VALUE(_x, _y, PACK_COLOR_4444_REV(a, r, g, b)) \
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = GET_VALUE(_x, _y); \
+ rgba[0] = ((p >> 0) & 0xf) * 0x11; \
+ rgba[1] = ((p >> 12) & 0xf) * 0x11; \
+ rgba[2] = ((p >> 4) & 0xf) * 0x11; \
+ rgba[3] = ((p >> 8) & 0xf) * 0x11; \
+ } while (0)
+
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_4_4_4_4_REV)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_4444(color[3], color[0], color[1], color[2])
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ PUT_VALUE(_x, _y, PACK_COLOR_4444(a, r, g, b)) \
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = GET_VALUE(_x, _y); \
+ rgba[0] = ((p >> 8) & 0xf) * 0x11; \
+ rgba[1] = ((p >> 4) & 0xf) * 0x11; \
+ rgba[2] = ((p >> 0) & 0xf) * 0x11; \
+ rgba[3] = ((p >> 12) & 0xf) * 0x11; \
+ } while (0)
+
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_1_5_5_5_REV)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_1555(color[3], color[0], color[1], color[2])
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ PUT_VALUE(_x, _y, PACK_COLOR_1555(a, r, g, b)) \
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = GET_VALUE(_x, _y); \
+ rgba[0] = ((p >> 7) & 0xf8) * 255 / 0xf8; \
+ rgba[1] = ((p >> 2) & 0xf8) * 255 / 0xf8; \
+ rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
+ rgba[3] = ((p >> 15) & 0x1) * 0xff; \
+ } while (0)
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_1_5_5_5)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_1555_REV(color[3], color[0], color[1], color[2])
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ PUT_VALUE(_x, _y, PACK_COLOR_1555_REV(a, r, g, b)) \
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = GET_VALUE(_x, _y); \
+ p = p << 8 | p >> 8; \
+ rgba[0] = ((p >> 7) & 0xf8) * 255 / 0xf8; \
+ rgba[1] = ((p >> 2) & 0xf8) * 255 / 0xf8; \
+ rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
+ rgba[3] = ((p >> 15) & 0x1) * 0xff; \
+ } while (0)
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+# define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_8888(color[3], color[0], color[1], color[2])
+
+# define WRITE_RGBA(_x, _y, r, g, b, a) \
+ PUT_VALUE(_x, _y, ((r << 16) | \
+ (g << 8) | \
+ (b << 0) | \
+ (a << 24)))
+
+#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
+
+# if defined( USE_X86_ASM )
+# define READ_RGBA(rgba, _x, _y) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ __asm__ __volatile__( "bswap %0; rorl $8, %0" \
+ : "=r" (p) : "0" (p) ); \
+ ((GLuint *)rgba)[0] = p; \
+ } while (0)
+# elif defined( MESA_BIG_ENDIAN )
+ /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
+ * rotlwi instruction. It also produces good code on SPARC.
+ */
+# define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ GLuint t = p; \
+ *((uint32_t *) rgba) = (t >> 24) | (p << 8); \
+ } while (0)
+# else
+# define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ rgba[0] = (p >> 16) & 0xff; \
+ rgba[1] = (p >> 8) & 0xff; \
+ rgba[2] = (p >> 0) & 0xff; \
+ rgba[3] = (p >> 24) & 0xff; \
+ } while (0)
+# endif
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_INT_8_8_8_8
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+# define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_8888(color[2], color[1], color[0], color[3])
+
+# define WRITE_RGBA(_x, _y, r, g, b, a) \
+ PUT_VALUE(_x, _y, ((r << 8) | \
+ (g << 16) | \
+ (b << 24) | \
+ (a << 0)))
+
+#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
+
+# if defined( USE_X86_ASM )
+# define READ_RGBA(rgba, _x, _y) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ __asm__ __volatile__( "rorl $8, %0" \
+ : "=r" (p) : "0" (p) ); \
+ ((GLuint *)rgba)[0] = p; \
+ } while (0)
+# elif defined( MESA_BIG_ENDIAN )
+ /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
+ * rotlwi instruction. It also produces good code on SPARC.
+ */
+# define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = CPU_TO_LE32(GET_VALUE(_x, _y)); \
+ GLuint t = p; \
+ *((uint32_t *) rgba) = (t >> 24) | (p << 8); \
+ } while (0)
+# else
+# define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ rgba[0] = (p >> 8) & 0xff; \
+ rgba[1] = (p >> 16) & 0xff; \
+ rgba[2] = (p >> 24) & 0xff; \
+ rgba[3] = (p >> 0) & 0xff; \
+ } while (0)
+# endif
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGR) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
+
+/**
+ ** GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV
+ **
+ ** This is really for MESA_FORMAT_XRGB8888. The spantmp code needs to be
+ ** kicked to the curb, and we need to just code-gen this.
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+# define INIT_MONO_PIXEL(p, color) \
+ p = PACK_COLOR_8888(0xff, color[0], color[1], color[2])
+
+# define WRITE_RGBA(_x, _y, r, g, b, a) \
+ PUT_VALUE(_x, _y, ((r << 16) | \
+ (g << 8) | \
+ (b << 0) | \
+ (0xff << 24)))
+
+#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
+
+# if defined( USE_X86_ASM )
+# define READ_RGBA(rgba, _x, _y) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ __asm__ __volatile__( "bswap %0; rorl $8, %0" \
+ : "=r" (p) : "0" (p) ); \
+ ((GLuint *)rgba)[0] = p | 0xff000000; \
+ } while (0)
+# elif defined( MESA_BIG_ENDIAN )
+ /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
+ * rotlwi instruction. It also produces good code on SPARC.
+ */
+# define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ *((uint32_t *) rgba) = (p << 8) | 0xff; \
+ } while (0)
+# else
+# define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = GET_VALUE(_x, _y); \
+ rgba[0] = (p >> 16) & 0xff; \
+ rgba[1] = (p >> 8) & 0xff; \
+ rgba[2] = (p >> 0) & 0xff; \
+ rgba[3] = 0xff; \
+ } while (0)
+# endif
+
+#elif (SPANTMP_PIXEL_FMT == GL_ALPHA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_BYTE)
+
+/**
+ ** GL_ALPHA, GL_UNSIGNED_BYTE
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) ( buf + (_x) + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLubyte *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLubyte *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+# define INIT_MONO_PIXEL(p, color) \
+ p = color[3]
+
+# define WRITE_RGBA(_x, _y, r, g, b, a) \
+ PUT_VALUE(_x, _y, a | (r & 0 /* quiet warnings */))
+
+#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLubyte p = GET_VALUE(_x, _y); \
+ rgba[0] = 0; \
+ rgba[1] = 0; \
+ rgba[2] = 0; \
+ rgba[3] = p; \
+ } while (0)
+
+#else
+#error SPANTMP_PIXEL_FMT must be set to a valid value!
+#endif
+
+
+
+/**
+ ** Assembly routines.
+ **/
+
+#if defined( USE_MMX_ASM ) || defined( USE_SSE_ASM )
+#include "x86/read_rgba_span_x86.h"
+#include "x86/common_x86_asm.h"
+#endif
+
+static void TAG(WriteRGBASpan)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const void *values, const GLubyte mask[] )
+{
+ (void) ctx;
+
+ HW_WRITE_LOCK()
+ {
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ GLint x1;
+ GLint n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ HW_WRITE_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ if (DBG) fprintf(stderr, "WriteRGBASpan %d..%d (x1 %d)\n",
+ (int)i, (int)n1, (int)x1);
+
+ if (mask)
+ {
+ for (;n1>0;i++,x1++,n1--)
+ if (mask[i])
+ WRITE_RGBA( x1, y,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ else
+ {
+ for (;n1>0;i++,x1++,n1--)
+ WRITE_RGBA( x1, y,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+static void TAG(WriteRGBSpan)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const void *values, const GLubyte mask[] )
+{
+ (void) ctx;
+
+ HW_WRITE_LOCK()
+ {
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ GLint x1;
+ GLint n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ HW_WRITE_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ if (DBG) fprintf(stderr, "WriteRGBSpan %d..%d (x1 %d)\n",
+ (int)i, (int)n1, (int)x1);
+
+ if (mask)
+ {
+ for (;n1>0;i++,x1++,n1--)
+ if (mask[i])
+ WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 );
+ }
+ else
+ {
+ for (;n1>0;i++,x1++,n1--)
+ WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+static void TAG(WriteRGBAPixels)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ const void *values, const GLubyte mask[] )
+{
+ (void) ctx;
+
+ HW_WRITE_LOCK()
+ {
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ GLint i;
+ LOCAL_VARS;
+
+ if (DBG) fprintf(stderr, "WriteRGBAPixels\n");
+
+ HW_WRITE_CLIPLOOP()
+ {
+ if (mask)
+ {
+ for (i=0;i<n;i++)
+ {
+ if (mask[i]) {
+ const int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL(x[i],fy))
+ WRITE_RGBA( x[i], fy,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ }
+ }
+ else
+ {
+ for (i=0;i<n;i++)
+ {
+ const int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL(x[i],fy))
+ WRITE_RGBA( x[i], fy,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+
+static void TAG(WriteMonoRGBASpan)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const void *value, const GLubyte mask[] )
+{
+ (void) ctx;
+
+ HW_WRITE_LOCK()
+ {
+ const GLubyte *color = (const GLubyte *) value;
+ GLint x1;
+ GLint n1;
+ LOCAL_VARS;
+ INIT_MONO_PIXEL(p, color);
+
+ y = Y_FLIP( y );
+
+ if (DBG) fprintf(stderr, "WriteMonoRGBASpan\n");
+
+ HW_WRITE_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+ if (mask)
+ {
+ for (;n1>0;i++,x1++,n1--)
+ if (mask[i])
+ WRITE_PIXEL( x1, y, p );
+ }
+ else
+ {
+ for (;n1>0;i++,x1++,n1--)
+ WRITE_PIXEL( x1, y, p );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+
+static void TAG(WriteMonoRGBAPixels)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const void *value,
+ const GLubyte mask[] )
+{
+ (void) ctx;
+
+ HW_WRITE_LOCK()
+ {
+ const GLubyte *color = (const GLubyte *) value;
+ GLint i;
+ LOCAL_VARS;
+ INIT_MONO_PIXEL(p, color);
+
+ if (DBG) fprintf(stderr, "WriteMonoRGBAPixels\n");
+
+ HW_WRITE_CLIPLOOP()
+ {
+ if (mask)
+ {
+ for (i=0;i<n;i++)
+ if (mask[i]) {
+ int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL( x[i], fy ))
+ WRITE_PIXEL( x[i], fy, p );
+ }
+ }
+ else
+ {
+ for (i=0;i<n;i++) {
+ int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL( x[i], fy ))
+ WRITE_PIXEL( x[i], fy, p );
+ }
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+
+static void TAG(ReadRGBASpan)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, void *values)
+{
+ (void) ctx;
+
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ GLint x1,n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ if (DBG) fprintf(stderr, "ReadRGBASpan\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+ for (;n1>0;i++,x1++,n1--)
+ READ_RGBA( rgba[i], x1, y );
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+}
+
+
+#if defined(GET_PTR) && \
+ defined(USE_MMX_ASM) && \
+ (((SPANTMP_PIXEL_FMT == GL_BGRA) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)) || \
+ ((SPANTMP_PIXEL_FMT == GL_RGB) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)))
+static void TAG2(ReadRGBASpan,_MMX)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, void *values)
+{
+#ifndef USE_INNER_EMMS
+ /* The EMMS instruction is directly in-lined here because using GCC's
+ * built-in _mm_empty function was found to utterly destroy performance.
+ */
+ __asm__ __volatile__( "emms" );
+#endif
+
+ (void) ctx;
+
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ GLint x1,n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ if (DBG) fprintf(stderr, "ReadRGBASpan\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ {
+ const void * src = GET_PTR( x1, y );
+#if (SPANTMP_PIXEL_FMT == GL_RGB) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)
+ _generic_read_RGBA_span_RGB565_MMX( src, rgba[i], n1 );
+#else
+ _generic_read_RGBA_span_BGRA8888_REV_MMX( src, rgba[i], n1 );
+#endif
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+#ifndef USE_INNER_EMMS
+ __asm__ __volatile__( "emms" );
+#endif
+}
+#endif
+
+
+#if defined(GET_PTR) && \
+ defined(USE_SSE_ASM) && \
+ (SPANTMP_PIXEL_FMT == GL_BGRA) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
+static void TAG2(ReadRGBASpan,_SSE2)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ void *values)
+{
+ (void) ctx;
+
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ GLint x1,n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ if (DBG) fprintf(stderr, "ReadRGBASpan\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ {
+ const void * src = GET_PTR( x1, y );
+ _generic_read_RGBA_span_BGRA8888_REV_SSE2( src, rgba[i], n1 );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+}
+#endif
+
+#if defined(GET_PTR) && \
+ defined(USE_SSE_ASM) && \
+ (SPANTMP_PIXEL_FMT == GL_BGRA) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
+static void TAG2(ReadRGBASpan,_SSE)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ void *values)
+{
+#ifndef USE_INNER_EMMS
+ /* The EMMS instruction is directly in-lined here because using GCC's
+ * built-in _mm_empty function was found to utterly destroy performance.
+ */
+ __asm__ __volatile__( "emms" );
+#endif
+
+ (void) ctx;
+
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ GLint x1,n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ if (DBG) fprintf(stderr, "ReadRGBASpan\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ {
+ const void * src = GET_PTR( x1, y );
+ _generic_read_RGBA_span_BGRA8888_REV_SSE( src, rgba[i], n1 );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+#ifndef USE_INNER_EMMS
+ __asm__ __volatile__( "emms" );
+#endif
+}
+#endif
+
+
+static void TAG(ReadRGBAPixels)( struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ void *values )
+{
+ (void) ctx;
+
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ GLint i;
+ LOCAL_VARS;
+
+ if (DBG) fprintf(stderr, "ReadRGBAPixels\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ for (i=0;i<n;i++) {
+ int fy = Y_FLIP( y[i] );
+ if (CLIPPIXEL( x[i], fy ))
+ READ_RGBA( rgba[i], x[i], fy );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+}
+
+static void TAG(InitPointers)(struct gl_renderbuffer *rb)
+{
+ rb->PutRow = TAG(WriteRGBASpan);
+ rb->PutRowRGB = TAG(WriteRGBSpan);
+ rb->PutMonoRow = TAG(WriteMonoRGBASpan);
+ rb->PutValues = TAG(WriteRGBAPixels);
+ rb->PutMonoValues = TAG(WriteMonoRGBAPixels);
+ rb->GetValues = TAG(ReadRGBAPixels);
+
+#if defined(GET_PTR)
+#if defined(USE_SSE_ASM) && \
+ (SPANTMP_PIXEL_FMT == GL_BGRA) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
+ if ( cpu_has_xmm2 ) {
+ if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "SSE2" );
+ rb->GetRow = TAG2(ReadRGBASpan, _SSE2);
+ }
+ else
+#endif
+#if defined(USE_SSE_ASM) && \
+ (SPANTMP_PIXEL_FMT == GL_BGRA) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
+ if ( cpu_has_xmm ) {
+ if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "SSE" );
+ rb->GetRow = TAG2(ReadRGBASpan, _SSE);
+ }
+ else
+#endif
+#if defined(USE_MMX_ASM) && \
+ (((SPANTMP_PIXEL_FMT == GL_BGRA) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)) || \
+ ((SPANTMP_PIXEL_FMT == GL_RGB) && \
+ (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5)))
+ if ( cpu_has_mmx ) {
+ if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "MMX" );
+ rb->GetRow = TAG2(ReadRGBASpan, _MMX);
+ }
+ else
+#endif
+#endif /* GET_PTR */
+ {
+ if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "C" );
+ rb->GetRow = TAG(ReadRGBASpan);
+ }
+
+}
+
+
+#undef INIT_MONO_PIXEL
+#undef WRITE_PIXEL
+#undef WRITE_RGBA
+#undef READ_RGBA
+#undef TAG
+#undef TAG2
+#undef GET_VALUE
+#undef PUT_VALUE
+#undef GET_PTR
+#undef SPANTMP_PIXEL_FMT
+#undef SPANTMP_PIXEL_TYPE
diff --git a/mesalib/src/mesa/drivers/dri/common/texmem.c b/mesalib/src/mesa/drivers/dri/common/texmem.c
index 1ba66133f..798ef1ee8 100644
--- a/mesalib/src/mesa/drivers/dri/common/texmem.c
+++ b/mesalib/src/mesa/drivers/dri/common/texmem.c
@@ -1,1341 +1,1341 @@
-/*
- * Copyright 2000-2001 VA Linux Systems, Inc.
- * (C) Copyright IBM Corporation 2002, 2003
- * 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
- * on 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
- * VA LINUX SYSTEM, IBM AND/OR THEIR 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:
- * Ian Romanick <idr@us.ibm.com>
- * Keith Whitwell <keithw@tungstengraphics.com>
- * Kevin E. Martin <kem@users.sourceforge.net>
- * Gareth Hughes <gareth@nvidia.com>
- */
-
-/** \file texmem.c
- * Implements all of the device-independent texture memory management.
- *
- * Currently, only a simple LRU texture memory management policy is
- * implemented. In the (hopefully very near) future, better policies will be
- * implemented. The idea is that the DRI should be able to run in one of two
- * modes. In the default mode the DRI will dynamically attempt to discover
- * the best texture management policy for the running application. In the
- * other mode, the user (via some sort of as yet TBD mechanism) will select
- * a texture management policy that is known to work well with the
- * application.
- */
-
-#include "main/imports.h"
-#include "main/macros.h"
-#include "main/simple_list.h"
-#include "texmem.h"
-
-
-static unsigned dummy_swap_counter;
-
-
-/**
- * Calculate \f$\log_2\f$ of a value. This is a particularly poor
- * implementation of this function. However, since system performance is in
- * no way dependent on this function, the slowness of the implementation is
- * irrelevent.
- *
- * \param n Value whose \f$\log_2\f$ is to be calculated
- */
-
-static GLuint
-driLog2( GLuint n )
-{
- GLuint log2;
-
- for ( log2 = 1 ; n > 1 ; log2++ ) {
- n >>= 1;
- }
-
- return log2;
-}
-
-
-
-
-/**
- * Determine if a texture is resident in textureable memory. Depending on
- * the driver, this may or may not be on-card memory. It could be AGP memory
- * or anyother type of memory from which the hardware can directly read
- * texels.
- *
- * This function is intended to be used as the \c IsTextureResident function
- * in the device's \c dd_function_table.
- *
- * \param ctx GL context pointer (currently unused)
- * \param texObj Texture object to be tested
- */
-
-GLboolean
-driIsTextureResident( struct gl_context * ctx,
- struct gl_texture_object * texObj )
-{
- driTextureObject * t;
-
-
- t = (driTextureObject *) texObj->DriverData;
- return( (t != NULL) && (t->memBlock != NULL) );
-}
-
-
-
-
-/**
- * (Re)initialize the global circular LRU list. The last element
- * in the array (\a heap->nrRegions) is the sentinal. Keeping it
- * at the end of the array allows the other elements of the array
- * to be addressed rationally when looking up objects at a particular
- * location in texture memory.
- *
- * \param heap Texture heap to be reset
- */
-
-static void resetGlobalLRU( driTexHeap * heap )
-{
- drmTextureRegionPtr list = heap->global_regions;
- unsigned sz = 1U << heap->logGranularity;
- unsigned i;
-
- for (i = 0 ; (i+1) * sz <= heap->size ; i++) {
- list[i].prev = i-1;
- list[i].next = i+1;
- list[i].age = 0;
- }
-
- i--;
- list[0].prev = heap->nrRegions;
- list[i].prev = i-1;
- list[i].next = heap->nrRegions;
- list[heap->nrRegions].prev = i;
- list[heap->nrRegions].next = 0;
- heap->global_age[0] = 0;
-}
-
-/**
- * Print out debugging information about the local texture LRU.
- *
- * \param heap Texture heap to be printed
- * \param callername Name of calling function
- */
-static void printLocalLRU( driTexHeap * heap, const char *callername )
-{
- driTextureObject *t;
- unsigned sz = 1U << heap->logGranularity;
-
- fprintf( stderr, "%s in %s:\nLocal LRU, heap %d:\n",
- __FUNCTION__, callername, heap->heapId );
-
- foreach ( t, &heap->texture_objects ) {
- if (!t->memBlock)
- continue;
- if (!t->tObj) {
- fprintf( stderr, "Placeholder (%p) %d at 0x%x sz 0x%x\n",
- (void *)t,
- t->memBlock->ofs / sz,
- t->memBlock->ofs,
- t->memBlock->size );
- } else {
- fprintf( stderr, "Texture (%p) at 0x%x sz 0x%x\n",
- (void *)t,
- t->memBlock->ofs,
- t->memBlock->size );
- }
- }
- foreach ( t, heap->swapped_objects ) {
- if (!t->tObj) {
- fprintf( stderr, "Swapped Placeholder (%p)\n", (void *)t );
- } else {
- fprintf( stderr, "Swapped Texture (%p)\n", (void *)t );
- }
- }
-
- fprintf( stderr, "\n" );
-}
-
-/**
- * Print out debugging information about the global texture LRU.
- *
- * \param heap Texture heap to be printed
- * \param callername Name of calling function
- */
-static void printGlobalLRU( driTexHeap * heap, const char *callername )
-{
- drmTextureRegionPtr list = heap->global_regions;
- unsigned int i, j;
-
- fprintf( stderr, "%s in %s:\nGlobal LRU, heap %d list %p:\n",
- __FUNCTION__, callername, heap->heapId, (void *)list );
-
- for ( i = 0, j = heap->nrRegions ; i < heap->nrRegions ; i++ ) {
- fprintf( stderr, "list[%d] age %d next %d prev %d in_use %d\n",
- j, list[j].age, list[j].next, list[j].prev, list[j].in_use );
- j = list[j].next;
- if ( j == heap->nrRegions ) break;
- }
-
- if ( j != heap->nrRegions ) {
- fprintf( stderr, "Loop detected in global LRU\n" );
- for ( i = 0 ; i < heap->nrRegions ; i++ ) {
- fprintf( stderr, "list[%d] age %d next %d prev %d in_use %d\n",
- i, list[i].age, list[i].next, list[i].prev, list[i].in_use );
- }
- }
-
- fprintf( stderr, "\n" );
-}
-
-
-/**
- * Called by the client whenever it touches a local texture.
- *
- * \param t Texture object that the client has accessed
- */
-
-void driUpdateTextureLRU( driTextureObject * t )
-{
- driTexHeap * heap;
- drmTextureRegionPtr list;
- unsigned shift;
- unsigned start;
- unsigned end;
- unsigned i;
-
-
- heap = t->heap;
- if ( heap != NULL ) {
- shift = heap->logGranularity;
- start = t->memBlock->ofs >> shift;
- end = (t->memBlock->ofs + t->memBlock->size - 1) >> shift;
-
-
- heap->local_age = ++heap->global_age[0];
- list = heap->global_regions;
-
-
- /* Update the context's local LRU
- */
-
- move_to_head( & heap->texture_objects, t );
-
-
- for (i = start ; i <= end ; i++) {
- list[i].age = heap->local_age;
-
- /* remove_from_list(i)
- */
- list[(unsigned)list[i].next].prev = list[i].prev;
- list[(unsigned)list[i].prev].next = list[i].next;
-
- /* insert_at_head(list, i)
- */
- list[i].prev = heap->nrRegions;
- list[i].next = list[heap->nrRegions].next;
- list[(unsigned)list[heap->nrRegions].next].prev = i;
- list[heap->nrRegions].next = i;
- }
-
- if ( 0 ) {
- printGlobalLRU( heap, __FUNCTION__ );
- printLocalLRU( heap, __FUNCTION__ );
- }
- }
-}
-
-
-
-
-/**
- * Keep track of swapped out texture objects.
- *
- * \param t Texture object to be "swapped" out of its texture heap
- */
-
-void driSwapOutTextureObject( driTextureObject * t )
-{
- unsigned face;
-
-
- if ( t->memBlock != NULL ) {
- assert( t->heap != NULL );
- mmFreeMem( t->memBlock );
- t->memBlock = NULL;
-
- if (t->timestamp > t->heap->timestamp)
- t->heap->timestamp = t->timestamp;
-
- t->heap->texture_swaps[0]++;
- move_to_tail( t->heap->swapped_objects, t );
- t->heap = NULL;
- }
- else {
- assert( t->heap == NULL );
- }
-
-
- for ( face = 0 ; face < 6 ; face++ ) {
- t->dirty_images[face] = ~0;
- }
-}
-
-
-
-
-/**
- * Destroy hardware state associated with texture \a t. Calls the
- * \a destroy_texture_object method associated with the heap from which
- * \a t was allocated.
- *
- * \param t Texture object to be destroyed
- */
-
-void driDestroyTextureObject( driTextureObject * t )
-{
- driTexHeap * heap;
-
-
- if ( 0 ) {
- fprintf( stderr, "[%s:%d] freeing %p (tObj = %p, DriverData = %p)\n",
- __FILE__, __LINE__,
- (void *)t,
- (void *)((t != NULL) ? t->tObj : NULL),
- (void *)((t != NULL && t->tObj != NULL) ? t->tObj->DriverData : NULL ));
- }
-
- if ( t != NULL ) {
- if ( t->memBlock ) {
- heap = t->heap;
- assert( heap != NULL );
-
- heap->texture_swaps[0]++;
-
- mmFreeMem( t->memBlock );
- t->memBlock = NULL;
-
- if (t->timestamp > t->heap->timestamp)
- t->heap->timestamp = t->timestamp;
-
- heap->destroy_texture_object( heap->driverContext, t );
- t->heap = NULL;
- }
-
- if ( t->tObj != NULL ) {
- assert( t->tObj->DriverData == t );
- t->tObj->DriverData = NULL;
- }
-
- remove_from_list( t );
- FREE( t );
- }
-
- if ( 0 ) {
- fprintf( stderr, "[%s:%d] done freeing %p\n", __FILE__, __LINE__, (void *)t );
- }
-}
-
-
-
-
-/**
- * Update the local heap's representation of texture memory based on
- * data in the SAREA. This is done each time it is detected that some other
- * direct rendering client has held the lock. This pertains to both our local
- * textures and the textures belonging to other clients. Keep track of other
- * client's textures by pushing a placeholder texture onto the LRU list --
- * these are denoted by \a tObj being \a NULL.
- *
- * \param heap Heap whose state is to be updated
- * \param offset Byte offset in the heap that has been stolen
- * \param size Size, in bytes, of the stolen block
- * \param in_use Non-zero if the block is pinned/reserved by the kernel
- */
-
-static void driTexturesGone( driTexHeap * heap, int offset, int size,
- int in_use )
-{
- driTextureObject * t;
- driTextureObject * tmp;
-
-
- foreach_s ( t, tmp, & heap->texture_objects ) {
- if ( (t->memBlock->ofs < (offset + size))
- && ((t->memBlock->ofs + t->memBlock->size) > offset) ) {
- /* It overlaps - kick it out. If the texture object is just a
- * place holder, then destroy it all together. Otherwise, mark
- * it as being swapped out.
- */
-
- if ( t->tObj != NULL ) {
- driSwapOutTextureObject( t );
- }
- else {
- driDestroyTextureObject( t );
- }
- }
- }
-
-
- {
- t = (driTextureObject *) CALLOC( heap->texture_object_size );
- if ( t == NULL ) return;
-
- t->memBlock = mmAllocMem( heap->memory_heap, size, 0, offset );
- if ( t->memBlock == NULL ) {
- fprintf( stderr, "Couldn't alloc placeholder: heap %u sz %x ofs %x\n", heap->heapId,
- (int)size, (int)offset );
- mmDumpMemInfo( heap->memory_heap );
- FREE(t);
- return;
- }
- t->heap = heap;
- if (in_use)
- t->reserved = 1;
- insert_at_head( & heap->texture_objects, t );
- }
-}
-
-
-
-
-/**
- * Called by the client on lock contention to determine whether textures have
- * been stolen. If another client has modified a region in which we have
- * textures, then we need to figure out which of our textures have been
- * removed and update our global LRU.
- *
- * \param heap Texture heap to be updated
- */
-
-void driAgeTextures( driTexHeap * heap )
-{
- drmTextureRegionPtr list = heap->global_regions;
- unsigned sz = 1U << (heap->logGranularity);
- unsigned i, nr = 0;
-
-
- /* Have to go right round from the back to ensure stuff ends up
- * LRU in the local list... Fix with a cursor pointer.
- */
-
- for (i = list[heap->nrRegions].prev ;
- i != heap->nrRegions && nr < heap->nrRegions ;
- i = list[i].prev, nr++) {
- /* If switching texturing schemes, then the SAREA might not have been
- * properly cleared, so we need to reset the global texture LRU.
- */
-
- if ( (i * sz) > heap->size ) {
- nr = heap->nrRegions;
- break;
- }
-
- if (list[i].age > heap->local_age)
- driTexturesGone( heap, i * sz, sz, list[i].in_use);
- }
-
- /* Loop or uninitialized heap detected. Reset.
- */
-
- if (nr == heap->nrRegions) {
- driTexturesGone( heap, 0, heap->size, 0);
- resetGlobalLRU( heap );
- }
-
- if ( 0 ) {
- printGlobalLRU( heap, __FUNCTION__ );
- printLocalLRU( heap, __FUNCTION__ );
- }
-
- heap->local_age = heap->global_age[0];
-}
-
-
-
-
-#define INDEX_ARRAY_SIZE 6 /* I'm not aware of driver with more than 2 heaps */
-
-/**
- * Allocate memory from a texture heap to hold a texture object. This
- * routine will attempt to allocate memory for the texture from the heaps
- * specified by \c heap_array in order. That is, first it will try to
- * allocate from \c heap_array[0], then \c heap_array[1], and so on.
- *
- * \param heap_array Array of pointers to texture heaps to use
- * \param nr_heaps Number of heap pointer in \a heap_array
- * \param t Texture object for which space is needed
- * \return The ID of the heap from which memory was allocated, or -1 if
- * memory could not be allocated.
- *
- * \bug The replacement policy implemented by this function is horrible.
- */
-
-
-int
-driAllocateTexture( driTexHeap * const * heap_array, unsigned nr_heaps,
- driTextureObject * t )
-{
- driTexHeap * heap;
- driTextureObject * temp;
- driTextureObject * cursor;
- unsigned id;
-
-
- /* In case it already has texture space, initialize heap. This also
- * prevents GCC from issuing a warning that heap might be used
- * uninitialized.
- */
-
- heap = t->heap;
-
-
- /* Run through each of the existing heaps and try to allocate a buffer
- * to hold the texture.
- */
-
- for ( id = 0 ; (t->memBlock == NULL) && (id < nr_heaps) ; id++ ) {
- heap = heap_array[ id ];
- if ( heap != NULL ) {
- t->memBlock = mmAllocMem( heap->memory_heap, t->totalSize,
- heap->alignmentShift, 0 );
- }
- }
-
-
- /* Kick textures out until the requested texture fits.
- */
-
- if ( t->memBlock == NULL ) {
- unsigned index[INDEX_ARRAY_SIZE];
- unsigned nrGoodHeaps = 0;
-
- /* Trying to avoid dynamic memory allocation. If you have more
- * heaps, increase INDEX_ARRAY_SIZE. I'm not aware of any
- * drivers with more than 2 tex heaps. */
- assert( nr_heaps < INDEX_ARRAY_SIZE );
-
- /* Sort large enough heaps by duty. Insertion sort should be
- * fast enough for such a short array. */
- for ( id = 0 ; id < nr_heaps ; id++ ) {
- heap = heap_array[ id ];
-
- if ( heap != NULL && t->totalSize <= heap->size ) {
- unsigned j;
-
- for ( j = 0 ; j < nrGoodHeaps; j++ ) {
- if ( heap->duty > heap_array[ index[ j ] ]->duty )
- break;
- }
-
- if ( j < nrGoodHeaps ) {
- memmove( &index[ j+1 ], &index[ j ],
- sizeof(index[ 0 ]) * (nrGoodHeaps - j) );
- }
-
- index[ j ] = id;
-
- nrGoodHeaps++;
- }
- }
-
- for ( id = 0 ; (t->memBlock == NULL) && (id < nrGoodHeaps) ; id++ ) {
- heap = heap_array[ index[ id ] ];
-
- for ( cursor = heap->texture_objects.prev, temp = cursor->prev;
- cursor != &heap->texture_objects ;
- cursor = temp, temp = cursor->prev ) {
-
- /* The the LRU element. If the texture is bound to one of
- * the texture units, then we cannot kick it out.
- */
- if ( cursor->bound || cursor->reserved ) {
- continue;
- }
-
- if ( cursor->memBlock )
- heap->duty -= cursor->memBlock->size;
-
- /* If this is a placeholder, there's no need to keep it */
- if (cursor->tObj)
- driSwapOutTextureObject( cursor );
- else
- driDestroyTextureObject( cursor );
-
- t->memBlock = mmAllocMem( heap->memory_heap, t->totalSize,
- heap->alignmentShift, 0 );
-
- if (t->memBlock)
- break;
- }
- }
-
- /* Rebalance duties. If a heap kicked more data than its duty,
- * then all other heaps get that amount multiplied with their
- * relative weight added to their duty. The negative duty is
- * reset to 0. In the end all heaps have a duty >= 0.
- *
- * CAUTION: we must not change the heap pointer here, because it
- * is used below to update the texture object.
- */
- for ( id = 0 ; id < nr_heaps ; id++ )
- if ( heap_array[ id ] != NULL && heap_array[ id ]->duty < 0) {
- int duty = -heap_array[ id ]->duty;
- double weight = heap_array[ id ]->weight;
- unsigned j;
-
- for ( j = 0 ; j < nr_heaps ; j++ )
- if ( j != id && heap_array[ j ] != NULL ) {
- heap_array[ j ]->duty += (double) duty *
- heap_array[ j ]->weight / weight;
- }
-
- heap_array[ id ]->duty = 0;
- }
- }
-
-
- if ( t->memBlock != NULL ) {
- /* id and heap->heapId may or may not be the same value here.
- */
-
- assert( heap != NULL );
- assert( (t->heap == NULL) || (t->heap == heap) );
-
- t->heap = heap;
- return heap->heapId;
- }
- else {
- assert( t->heap == NULL );
-
- fprintf( stderr, "[%s:%d] unable to allocate texture\n",
- __FUNCTION__, __LINE__ );
- return -1;
- }
-}
-
-
-
-
-
-
-/**
- * Set the location where the texture-swap counter is stored.
- */
-
-void
-driSetTextureSwapCounterLocation( driTexHeap * heap, unsigned * counter )
-{
- heap->texture_swaps = (counter == NULL) ? & dummy_swap_counter : counter;
-}
-
-
-
-
-/**
- * Create a new heap for texture data.
- *
- * \param heap_id Device-dependent heap identifier. This value
- * will returned by driAllocateTexture when memory
- * is allocated from this heap.
- * \param context Device-dependent driver context. This is
- * supplied as the first parameter to the
- * \c destroy_tex_obj function.
- * \param size Size, in bytes, of the texture region
- * \param alignmentShift Alignment requirement for textures. If textures
- * must be allocated on a 4096 byte boundry, this
- * would be 12.
- * \param nr_regions Number of regions into which this texture space
- * should be partitioned
- * \param global_regions Array of \c drmTextureRegion structures in the SAREA
- * \param global_age Pointer to the global texture age in the SAREA
- * \param swapped_objects Pointer to the list of texture objects that are
- * not in texture memory (i.e., have been swapped
- * out).
- * \param texture_object_size Size, in bytes, of a device-dependent texture
- * object
- * \param destroy_tex_obj Function used to destroy a device-dependent
- * texture object
- *
- * \sa driDestroyTextureHeap
- */
-
-driTexHeap *
-driCreateTextureHeap( unsigned heap_id, void * context, unsigned size,
- unsigned alignmentShift, unsigned nr_regions,
- drmTextureRegionPtr global_regions, unsigned * global_age,
- driTextureObject * swapped_objects,
- unsigned texture_object_size,
- destroy_texture_object_t * destroy_tex_obj
- )
-{
- driTexHeap * heap;
- unsigned l;
-
-
- if ( 0 )
- fprintf( stderr, "%s( %u, %p, %u, %u, %u )\n",
- __FUNCTION__,
- heap_id, (void *)context, size, alignmentShift, nr_regions );
-
- heap = (driTexHeap *) CALLOC( sizeof( driTexHeap ) );
- if ( heap != NULL ) {
- l = driLog2( (size - 1) / nr_regions );
- if ( l < alignmentShift )
- {
- l = alignmentShift;
- }
-
- heap->logGranularity = l;
- heap->size = size & ~((1L << l) - 1);
-
- heap->memory_heap = mmInit( 0, heap->size );
- if ( heap->memory_heap != NULL ) {
- heap->heapId = heap_id;
- heap->driverContext = context;
-
- heap->alignmentShift = alignmentShift;
- heap->nrRegions = nr_regions;
- heap->global_regions = global_regions;
- heap->global_age = global_age;
- heap->swapped_objects = swapped_objects;
- heap->texture_object_size = texture_object_size;
- heap->destroy_texture_object = destroy_tex_obj;
-
- /* Force global heap init */
- if (heap->global_age[0] == 0)
- heap->local_age = ~0;
- else
- heap->local_age = 0;
-
- make_empty_list( & heap->texture_objects );
- driSetTextureSwapCounterLocation( heap, NULL );
-
- heap->weight = heap->size;
- heap->duty = 0;
- }
- else {
- FREE( heap );
- heap = NULL;
- }
- }
-
-
- if ( 0 )
- fprintf( stderr, "%s returning %p\n", __FUNCTION__, (void *)heap );
-
- return heap;
-}
-
-
-
-
-/** Destroys a texture heap
- *
- * \param heap Texture heap to be destroyed
- */
-
-void
-driDestroyTextureHeap( driTexHeap * heap )
-{
- driTextureObject * t;
- driTextureObject * temp;
-
-
- if ( heap != NULL ) {
- foreach_s( t, temp, & heap->texture_objects ) {
- driDestroyTextureObject( t );
- }
- foreach_s( t, temp, heap->swapped_objects ) {
- driDestroyTextureObject( t );
- }
-
- mmDestroy( heap->memory_heap );
- FREE( heap );
- }
-}
-
-
-
-
-/****************************************************************************/
-/**
- * Determine how many texels (including all mipmap levels) would be required
- * for a texture map of size \f$2^^\c base_size_log2\f$ would require.
- *
- * \param base_size_log2 \f$log_2\f$ of the size of a side of the texture
- * \param dimensions Number of dimensions of the texture. Either 2 or 3.
- * \param faces Number of faces of the texture. Either 1 or 6 (for cube maps).
- * \return Number of texels
- */
-
-static unsigned
-texels_this_map_size( int base_size_log2, unsigned dimensions, unsigned faces )
-{
- unsigned texels;
-
-
- assert( (faces == 1) || (faces == 6) );
- assert( (dimensions == 2) || (dimensions == 3) );
-
- texels = 0;
- if ( base_size_log2 >= 0 ) {
- texels = (1U << (dimensions * base_size_log2));
-
- /* See http://www.mail-archive.com/dri-devel@lists.sourceforge.net/msg03636.html
- * for the complete explaination of why this formulation is used.
- * Basically, the smaller mipmap levels sum to 0.333 the size of the
- * level 0 map. The total size is therefore the size of the map
- * multipled by 1.333. The +2 is there to round up.
- */
-
- texels = (texels * 4 * faces + 2) / 3;
- }
-
- return texels;
-}
-
-
-
-
-struct maps_per_heap {
- unsigned c[32];
-};
-
-static void
-fill_in_maximums( driTexHeap * const * heaps, unsigned nr_heaps,
- unsigned max_bytes_per_texel, unsigned max_size,
- unsigned mipmaps_at_once, unsigned dimensions,
- unsigned faces, struct maps_per_heap * max_textures )
-{
- unsigned heap;
- unsigned log2_size;
- unsigned mask;
-
-
- /* Determine how many textures of each size can be stored in each
- * texture heap.
- */
-
- for ( heap = 0 ; heap < nr_heaps ; heap++ ) {
- if ( heaps[ heap ] == NULL ) {
- (void) memset( max_textures[ heap ].c, 0,
- sizeof( max_textures[ heap ].c ) );
- continue;
- }
-
- mask = (1U << heaps[ heap ]->logGranularity) - 1;
-
- if ( 0 ) {
- fprintf( stderr, "[%s:%d] heap[%u] = %u bytes, mask = 0x%08x\n",
- __FILE__, __LINE__,
- heap, heaps[ heap ]->size, mask );
- }
-
- for ( log2_size = max_size ; log2_size > 0 ; log2_size-- ) {
- unsigned total;
-
-
- /* Determine the total number of bytes required by a texture of
- * size log2_size.
- */
-
- total = texels_this_map_size( log2_size, dimensions, faces )
- - texels_this_map_size( log2_size - mipmaps_at_once,
- dimensions, faces );
- total *= max_bytes_per_texel;
- total = (total + mask) & ~mask;
-
- /* The number of textures of a given size that will fit in a heap
- * is equal to the size of the heap divided by the size of the
- * texture.
- */
-
- max_textures[ heap ].c[ log2_size ] = heaps[ heap ]->size / total;
-
- if ( 0 ) {
- fprintf( stderr, "[%s:%d] max_textures[%u].c[%02u] "
- "= 0x%08x / 0x%08x "
- "= %u (%u)\n",
- __FILE__, __LINE__,
- heap, log2_size,
- heaps[ heap ]->size, total,
- heaps[ heap ]->size / total,
- max_textures[ heap ].c[ log2_size ] );
- }
- }
- }
-}
-
-
-static unsigned
-get_max_size( unsigned nr_heaps,
- unsigned texture_units,
- unsigned max_size,
- int all_textures_one_heap,
- struct maps_per_heap * max_textures )
-{
- unsigned heap;
- unsigned log2_size;
-
-
- /* Determine the largest texture size such that a texture of that size
- * can be bound to each texture unit at the same time. Some hardware
- * may require that all textures be in the same texture heap for
- * multitexturing.
- */
-
- for ( log2_size = max_size ; log2_size > 0 ; log2_size-- ) {
- unsigned total = 0;
-
- for ( heap = 0 ; heap < nr_heaps ; heap++ )
- {
- total += max_textures[ heap ].c[ log2_size ];
-
- if ( 0 ) {
- fprintf( stderr, "[%s:%d] max_textures[%u].c[%02u] = %u, "
- "total = %u\n", __FILE__, __LINE__, heap, log2_size,
- max_textures[ heap ].c[ log2_size ], total );
- }
-
- if ( (max_textures[ heap ].c[ log2_size ] >= texture_units)
- || (!all_textures_one_heap && (total >= texture_units)) ) {
- /* The number of mipmap levels is the log-base-2 of the
- * maximum texture size plus 1. If the maximum texture size
- * is 1x1, the log-base-2 is 0 and 1 mipmap level (the base
- * level) is available.
- */
-
- return log2_size + 1;
- }
- }
- }
-
- /* This should NEVER happen. It should always be possible to have at
- * *least* a 1x1 texture in memory!
- */
- assert( log2_size != 0 );
- return 0;
-}
-
-#define SET_MAX(f,v) \
- do { if ( max_sizes[v] != 0 ) { limits-> f = max_sizes[v]; } } while( 0 )
-
-#define SET_MAX_RECT(f,v) \
- do { if ( max_sizes[v] != 0 ) { limits-> f = 1 << (max_sizes[v] - 1); } } while( 0 )
-
-
-/**
- * Given the amount of texture memory, the number of texture units, and the
- * maximum size of a texel, calculate the maximum texture size the driver can
- * advertise.
- *
- * \param heaps Texture heaps for this card
- * \param nr_heap Number of texture heaps
- * \param limits OpenGL contants. MaxTextureUnits must be set.
- * \param max_bytes_per_texel Maximum size of a single texel, in bytes
- * \param max_2D_size \f$\log_2\f$ of the maximum 2D texture size (i.e.,
- * 1024x1024 textures, this would be 10)
- * \param max_3D_size \f$\log_2\f$ of the maximum 3D texture size (i.e.,
- * 1024x1024x1024 textures, this would be 10)
- * \param max_cube_size \f$\log_2\f$ of the maximum cube texture size (i.e.,
- * 1024x1024 textures, this would be 10)
- * \param max_rect_size \f$\log_2\f$ of the maximum texture rectangle size
- * (i.e., 1024x1024 textures, this would be 10). This is a power-of-2
- * even though texture rectangles need not be a power-of-2.
- * \param mipmaps_at_once Total number of mipmaps that can be used
- * at one time. For most hardware this will be \f$\c max_size + 1\f$.
- * For hardware that does not support mipmapping, this will be 1.
- * \param all_textures_one_heap True if the hardware requires that all
- * textures be in a single texture heap for multitexturing.
- * \param allow_larger_textures 0 conservative, 1 calculate limits
- * so at least one worst-case texture can fit, 2 just use hw limits.
- */
-
-void
-driCalculateMaxTextureLevels( driTexHeap * const * heaps,
- unsigned nr_heaps,
- struct gl_constants * limits,
- unsigned max_bytes_per_texel,
- unsigned max_2D_size,
- unsigned max_3D_size,
- unsigned max_cube_size,
- unsigned max_rect_size,
- unsigned mipmaps_at_once,
- int all_textures_one_heap,
- int allow_larger_textures )
-{
- struct maps_per_heap max_textures[8];
- unsigned i;
- const unsigned dimensions[4] = { 2, 3, 2, 2 };
- const unsigned faces[4] = { 1, 1, 6, 1 };
- unsigned max_sizes[4];
- unsigned mipmaps[4];
-
-
- max_sizes[0] = max_2D_size;
- max_sizes[1] = max_3D_size;
- max_sizes[2] = max_cube_size;
- max_sizes[3] = max_rect_size;
-
- mipmaps[0] = mipmaps_at_once;
- mipmaps[1] = mipmaps_at_once;
- mipmaps[2] = mipmaps_at_once;
- mipmaps[3] = 1;
-
-
- /* Calculate the maximum number of texture levels in two passes. The
- * first pass determines how many textures of each power-of-two size
- * (including all mipmap levels for that size) can fit in each texture
- * heap. The second pass finds the largest texture size that allows
- * a texture of that size to be bound to every texture unit.
- */
-
- for ( i = 0 ; i < 4 ; i++ ) {
- if ( (allow_larger_textures != 2) && (max_sizes[ i ] != 0) ) {
- fill_in_maximums( heaps, nr_heaps, max_bytes_per_texel,
- max_sizes[ i ], mipmaps[ i ],
- dimensions[ i ], faces[ i ],
- max_textures );
-
- max_sizes[ i ] = get_max_size( nr_heaps,
- allow_larger_textures == 1 ?
- 1 : limits->MaxTextureUnits,
- max_sizes[ i ],
- all_textures_one_heap,
- max_textures );
- }
- else if (max_sizes[ i ] != 0) {
- max_sizes[ i ] += 1;
- }
- }
-
- SET_MAX( MaxTextureLevels, 0 );
- SET_MAX( Max3DTextureLevels, 1 );
- SET_MAX( MaxCubeTextureLevels, 2 );
- SET_MAX_RECT( MaxTextureRectSize, 3 );
-}
-
-
-
-
-/**
- * Perform initial binding of default textures objects on a per unit, per
- * texture target basis.
- *
- * \param ctx Current OpenGL context
- * \param swapped List of swapped-out textures
- * \param targets Bit-mask of value texture targets
- */
-
-void driInitTextureObjects( struct gl_context *ctx, driTextureObject * swapped,
- GLuint targets )
-{
- struct gl_texture_object *texObj;
- GLuint tmp = ctx->Texture.CurrentUnit;
- unsigned i;
-
-
- for ( i = 0 ; i < ctx->Const.MaxTextureUnits ; i++ ) {
- ctx->Texture.CurrentUnit = i;
-
- if ( (targets & DRI_TEXMGR_DO_TEXTURE_1D) != 0 ) {
- texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_1D_INDEX];
- ctx->Driver.BindTexture( ctx, GL_TEXTURE_1D, texObj );
- move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
- }
-
- if ( (targets & DRI_TEXMGR_DO_TEXTURE_2D) != 0 ) {
- texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_2D_INDEX];
- ctx->Driver.BindTexture( ctx, GL_TEXTURE_2D, texObj );
- move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
- }
-
- if ( (targets & DRI_TEXMGR_DO_TEXTURE_3D) != 0 ) {
- texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_3D_INDEX];
- ctx->Driver.BindTexture( ctx, GL_TEXTURE_3D, texObj );
- move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
- }
-
- if ( (targets & DRI_TEXMGR_DO_TEXTURE_CUBE) != 0 ) {
- texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_CUBE_INDEX];
- ctx->Driver.BindTexture( ctx, GL_TEXTURE_CUBE_MAP_ARB, texObj );
- move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
- }
-
- if ( (targets & DRI_TEXMGR_DO_TEXTURE_RECT) != 0 ) {
- texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_RECT_INDEX];
- ctx->Driver.BindTexture( ctx, GL_TEXTURE_RECTANGLE_NV, texObj );
- move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
- }
- }
-
- ctx->Texture.CurrentUnit = tmp;
-}
-
-
-
-
-/**
- * Verify that the specified texture is in the specificed heap.
- *
- * \param tex Texture to be tested.
- * \param heap Texture memory heap to be tested.
- * \return True if the texture is in the heap, false otherwise.
- */
-
-static GLboolean
-check_in_heap( const driTextureObject * tex, const driTexHeap * heap )
-{
-#if 1
- return tex->heap == heap;
-#else
- driTextureObject * curr;
-
- foreach( curr, & heap->texture_objects ) {
- if ( curr == tex ) {
- break;
- }
- }
-
- return curr == tex;
-#endif
-}
-
-
-
-/****************************************************************************/
-/**
- * Validate the consistency of a set of texture heaps.
- * Original version by Keith Whitwell in r200/r200_sanity.c.
- */
-
-GLboolean
-driValidateTextureHeaps( driTexHeap * const * texture_heaps,
- unsigned nr_heaps, const driTextureObject * swapped )
-{
- driTextureObject *t;
- unsigned i;
-
- for ( i = 0 ; i < nr_heaps ; i++ ) {
- int last_end = 0;
- unsigned textures_in_heap = 0;
- unsigned blocks_in_mempool = 0;
- const driTexHeap * heap = texture_heaps[i];
- const struct mem_block *p = heap->memory_heap;
-
- /* Check each texture object has a MemBlock, and is linked into
- * the correct heap.
- *
- * Check the texobj base address corresponds to the MemBlock
- * range. Check the texobj size (recalculate?) fits within
- * the MemBlock.
- *
- * Count the number of texobj's using this heap.
- */
-
- foreach ( t, &heap->texture_objects ) {
- if ( !check_in_heap( t, heap ) ) {
- fprintf( stderr, "%s memory block for texture object @ %p not "
- "found in heap #%d\n",
- __FUNCTION__, (void *)t, i );
- return GL_FALSE;
- }
-
-
- if ( t->totalSize > t->memBlock->size ) {
- fprintf( stderr, "%s: Memory block for texture object @ %p is "
- "only %u bytes, but %u are required\n",
- __FUNCTION__, (void *)t, t->totalSize, t->memBlock->size );
- return GL_FALSE;
- }
-
- textures_in_heap++;
- }
-
- /* Validate the contents of the heap:
- * - Ordering
- * - Overlaps
- * - Bounds
- */
-
- while ( p != NULL ) {
- if (p->reserved) {
- fprintf( stderr, "%s: Block (%08x,%x), is reserved?!\n",
- __FUNCTION__, p->ofs, p->size );
- return GL_FALSE;
- }
-
- if (p->ofs != last_end) {
- fprintf( stderr, "%s: blocks_in_mempool = %d, last_end = %d, p->ofs = %d\n",
- __FUNCTION__, blocks_in_mempool, last_end, p->ofs );
- return GL_FALSE;
- }
-
- if (!p->reserved && !p->free) {
- blocks_in_mempool++;
- }
-
- last_end = p->ofs + p->size;
- p = p->next;
- }
-
- if (textures_in_heap != blocks_in_mempool) {
- fprintf( stderr, "%s: Different number of textures objects (%u) and "
- "inuse memory blocks (%u)\n",
- __FUNCTION__, textures_in_heap, blocks_in_mempool );
- return GL_FALSE;
- }
-
-#if 0
- fprintf( stderr, "%s: textures_in_heap = %u\n",
- __FUNCTION__, textures_in_heap );
-#endif
- }
-
-
- /* Check swapped texobj's have zero memblocks
- */
- i = 0;
- foreach ( t, swapped ) {
- if ( t->memBlock != NULL ) {
- fprintf( stderr, "%s: Swapped texobj %p has non-NULL memblock %p\n",
- __FUNCTION__, (void *)t, (void *)t->memBlock );
- return GL_FALSE;
- }
- i++;
- }
-
-#if 0
- fprintf( stderr, "%s: swapped texture count = %u\n", __FUNCTION__, i );
-#endif
-
- return GL_TRUE;
-}
-
-
-
-
-/****************************************************************************/
-/**
- * Compute which mipmap levels that really need to be sent to the hardware.
- * This depends on the base image size, GL_TEXTURE_MIN_LOD,
- * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
- */
-
-void
-driCalculateTextureFirstLastLevel( driTextureObject * t )
-{
- struct gl_texture_object * const tObj = t->tObj;
- const struct gl_texture_image * const baseImage =
- tObj->Image[0][tObj->BaseLevel];
-
- /* These must be signed values. MinLod and MaxLod can be negative numbers,
- * and having firstLevel and lastLevel as signed prevents the need for
- * extra sign checks.
- */
- int firstLevel;
- int lastLevel;
-
- /* Yes, this looks overly complicated, but it's all needed.
- */
-
- switch (tObj->Target) {
- case GL_TEXTURE_1D:
- case GL_TEXTURE_2D:
- case GL_TEXTURE_3D:
- case GL_TEXTURE_CUBE_MAP:
- if (tObj->Sampler.MinFilter == GL_NEAREST ||
- tObj->Sampler.MinFilter == GL_LINEAR) {
- /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
- */
-
- firstLevel = lastLevel = tObj->BaseLevel;
- }
- else {
- firstLevel = tObj->BaseLevel + (GLint)(tObj->Sampler.MinLod + 0.5);
- firstLevel = MAX2(firstLevel, tObj->BaseLevel);
- firstLevel = MIN2(firstLevel, tObj->BaseLevel + baseImage->MaxLog2);
- lastLevel = tObj->BaseLevel + (GLint)(tObj->Sampler.MaxLod + 0.5);
- lastLevel = MAX2(lastLevel, t->tObj->BaseLevel);
- lastLevel = MIN2(lastLevel, t->tObj->BaseLevel + baseImage->MaxLog2);
- lastLevel = MIN2(lastLevel, t->tObj->MaxLevel);
- lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */
- }
- break;
- case GL_TEXTURE_RECTANGLE_NV:
- case GL_TEXTURE_4D_SGIS:
- firstLevel = lastLevel = 0;
- break;
- default:
- return;
- }
-
- /* save these values */
- t->firstLevel = firstLevel;
- t->lastLevel = lastLevel;
-}
-
-
-
-
-/**
- * \name DRI texture formats. These vars are initialized to either the
- * big- or little-endian Mesa formats.
- */
-/*@{*/
-gl_format _dri_texformat_rgba8888 = MESA_FORMAT_NONE;
-gl_format _dri_texformat_argb8888 = MESA_FORMAT_NONE;
-gl_format _dri_texformat_rgb565 = MESA_FORMAT_NONE;
-gl_format _dri_texformat_argb4444 = MESA_FORMAT_NONE;
-gl_format _dri_texformat_argb1555 = MESA_FORMAT_NONE;
-gl_format _dri_texformat_al88 = MESA_FORMAT_NONE;
-gl_format _dri_texformat_a8 = MESA_FORMAT_A8;
-gl_format _dri_texformat_i8 = MESA_FORMAT_I8;
-gl_format _dri_texformat_l8 = MESA_FORMAT_L8;
-/*@}*/
-
-
-/**
- * Initialize _dri_texformat_* vars according to whether we're on
- * a big or little endian system.
- */
-void
-driInitTextureFormats(void)
-{
- if (_mesa_little_endian()) {
- _dri_texformat_rgba8888 = MESA_FORMAT_RGBA8888;
- _dri_texformat_argb8888 = MESA_FORMAT_ARGB8888;
- _dri_texformat_rgb565 = MESA_FORMAT_RGB565;
- _dri_texformat_argb4444 = MESA_FORMAT_ARGB4444;
- _dri_texformat_argb1555 = MESA_FORMAT_ARGB1555;
- _dri_texformat_al88 = MESA_FORMAT_AL88;
- }
- else {
- _dri_texformat_rgba8888 = MESA_FORMAT_RGBA8888_REV;
- _dri_texformat_argb8888 = MESA_FORMAT_ARGB8888_REV;
- _dri_texformat_rgb565 = MESA_FORMAT_RGB565_REV;
- _dri_texformat_argb4444 = MESA_FORMAT_ARGB4444_REV;
- _dri_texformat_argb1555 = MESA_FORMAT_ARGB1555_REV;
- _dri_texformat_al88 = MESA_FORMAT_AL88_REV;
- }
-}
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * (C) Copyright IBM Corporation 2002, 2003
+ * 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
+ * on 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
+ * VA LINUX SYSTEM, IBM AND/OR THEIR 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:
+ * Ian Romanick <idr@us.ibm.com>
+ * Keith Whitwell <keithw@tungstengraphics.com>
+ * Kevin E. Martin <kem@users.sourceforge.net>
+ * Gareth Hughes <gareth@nvidia.com>
+ */
+
+/** \file texmem.c
+ * Implements all of the device-independent texture memory management.
+ *
+ * Currently, only a simple LRU texture memory management policy is
+ * implemented. In the (hopefully very near) future, better policies will be
+ * implemented. The idea is that the DRI should be able to run in one of two
+ * modes. In the default mode the DRI will dynamically attempt to discover
+ * the best texture management policy for the running application. In the
+ * other mode, the user (via some sort of as yet TBD mechanism) will select
+ * a texture management policy that is known to work well with the
+ * application.
+ */
+
+#include "main/imports.h"
+#include "main/macros.h"
+#include "main/simple_list.h"
+#include "texmem.h"
+
+
+static unsigned dummy_swap_counter;
+
+
+/**
+ * Calculate \f$\log_2\f$ of a value. This is a particularly poor
+ * implementation of this function. However, since system performance is in
+ * no way dependent on this function, the slowness of the implementation is
+ * irrelevent.
+ *
+ * \param n Value whose \f$\log_2\f$ is to be calculated
+ */
+
+static GLuint
+driLog2( GLuint n )
+{
+ GLuint log2;
+
+ for ( log2 = 1 ; n > 1 ; log2++ ) {
+ n >>= 1;
+ }
+
+ return log2;
+}
+
+
+
+
+/**
+ * Determine if a texture is resident in textureable memory. Depending on
+ * the driver, this may or may not be on-card memory. It could be AGP memory
+ * or anyother type of memory from which the hardware can directly read
+ * texels.
+ *
+ * This function is intended to be used as the \c IsTextureResident function
+ * in the device's \c dd_function_table.
+ *
+ * \param ctx GL context pointer (currently unused)
+ * \param texObj Texture object to be tested
+ */
+
+GLboolean
+driIsTextureResident( struct gl_context * ctx,
+ struct gl_texture_object * texObj )
+{
+ driTextureObject * t;
+
+
+ t = (driTextureObject *) texObj->DriverData;
+ return( (t != NULL) && (t->memBlock != NULL) );
+}
+
+
+
+
+/**
+ * (Re)initialize the global circular LRU list. The last element
+ * in the array (\a heap->nrRegions) is the sentinal. Keeping it
+ * at the end of the array allows the other elements of the array
+ * to be addressed rationally when looking up objects at a particular
+ * location in texture memory.
+ *
+ * \param heap Texture heap to be reset
+ */
+
+static void resetGlobalLRU( driTexHeap * heap )
+{
+ drmTextureRegionPtr list = heap->global_regions;
+ unsigned sz = 1U << heap->logGranularity;
+ unsigned i;
+
+ for (i = 0 ; (i+1) * sz <= heap->size ; i++) {
+ list[i].prev = i-1;
+ list[i].next = i+1;
+ list[i].age = 0;
+ }
+
+ i--;
+ list[0].prev = heap->nrRegions;
+ list[i].prev = i-1;
+ list[i].next = heap->nrRegions;
+ list[heap->nrRegions].prev = i;
+ list[heap->nrRegions].next = 0;
+ heap->global_age[0] = 0;
+}
+
+/**
+ * Print out debugging information about the local texture LRU.
+ *
+ * \param heap Texture heap to be printed
+ * \param callername Name of calling function
+ */
+static void printLocalLRU( driTexHeap * heap, const char *callername )
+{
+ driTextureObject *t;
+ unsigned sz = 1U << heap->logGranularity;
+
+ fprintf( stderr, "%s in %s:\nLocal LRU, heap %d:\n",
+ __FUNCTION__, callername, heap->heapId );
+
+ foreach ( t, &heap->texture_objects ) {
+ if (!t->memBlock)
+ continue;
+ if (!t->tObj) {
+ fprintf( stderr, "Placeholder (%p) %d at 0x%x sz 0x%x\n",
+ (void *)t,
+ t->memBlock->ofs / sz,
+ t->memBlock->ofs,
+ t->memBlock->size );
+ } else {
+ fprintf( stderr, "Texture (%p) at 0x%x sz 0x%x\n",
+ (void *)t,
+ t->memBlock->ofs,
+ t->memBlock->size );
+ }
+ }
+ foreach ( t, heap->swapped_objects ) {
+ if (!t->tObj) {
+ fprintf( stderr, "Swapped Placeholder (%p)\n", (void *)t );
+ } else {
+ fprintf( stderr, "Swapped Texture (%p)\n", (void *)t );
+ }
+ }
+
+ fprintf( stderr, "\n" );
+}
+
+/**
+ * Print out debugging information about the global texture LRU.
+ *
+ * \param heap Texture heap to be printed
+ * \param callername Name of calling function
+ */
+static void printGlobalLRU( driTexHeap * heap, const char *callername )
+{
+ drmTextureRegionPtr list = heap->global_regions;
+ unsigned int i, j;
+
+ fprintf( stderr, "%s in %s:\nGlobal LRU, heap %d list %p:\n",
+ __FUNCTION__, callername, heap->heapId, (void *)list );
+
+ for ( i = 0, j = heap->nrRegions ; i < heap->nrRegions ; i++ ) {
+ fprintf( stderr, "list[%d] age %d next %d prev %d in_use %d\n",
+ j, list[j].age, list[j].next, list[j].prev, list[j].in_use );
+ j = list[j].next;
+ if ( j == heap->nrRegions ) break;
+ }
+
+ if ( j != heap->nrRegions ) {
+ fprintf( stderr, "Loop detected in global LRU\n" );
+ for ( i = 0 ; i < heap->nrRegions ; i++ ) {
+ fprintf( stderr, "list[%d] age %d next %d prev %d in_use %d\n",
+ i, list[i].age, list[i].next, list[i].prev, list[i].in_use );
+ }
+ }
+
+ fprintf( stderr, "\n" );
+}
+
+
+/**
+ * Called by the client whenever it touches a local texture.
+ *
+ * \param t Texture object that the client has accessed
+ */
+
+void driUpdateTextureLRU( driTextureObject * t )
+{
+ driTexHeap * heap;
+ drmTextureRegionPtr list;
+ unsigned shift;
+ unsigned start;
+ unsigned end;
+ unsigned i;
+
+
+ heap = t->heap;
+ if ( heap != NULL ) {
+ shift = heap->logGranularity;
+ start = t->memBlock->ofs >> shift;
+ end = (t->memBlock->ofs + t->memBlock->size - 1) >> shift;
+
+
+ heap->local_age = ++heap->global_age[0];
+ list = heap->global_regions;
+
+
+ /* Update the context's local LRU
+ */
+
+ move_to_head( & heap->texture_objects, t );
+
+
+ for (i = start ; i <= end ; i++) {
+ list[i].age = heap->local_age;
+
+ /* remove_from_list(i)
+ */
+ list[(unsigned)list[i].next].prev = list[i].prev;
+ list[(unsigned)list[i].prev].next = list[i].next;
+
+ /* insert_at_head(list, i)
+ */
+ list[i].prev = heap->nrRegions;
+ list[i].next = list[heap->nrRegions].next;
+ list[(unsigned)list[heap->nrRegions].next].prev = i;
+ list[heap->nrRegions].next = i;
+ }
+
+ if ( 0 ) {
+ printGlobalLRU( heap, __FUNCTION__ );
+ printLocalLRU( heap, __FUNCTION__ );
+ }
+ }
+}
+
+
+
+
+/**
+ * Keep track of swapped out texture objects.
+ *
+ * \param t Texture object to be "swapped" out of its texture heap
+ */
+
+void driSwapOutTextureObject( driTextureObject * t )
+{
+ unsigned face;
+
+
+ if ( t->memBlock != NULL ) {
+ assert( t->heap != NULL );
+ mmFreeMem( t->memBlock );
+ t->memBlock = NULL;
+
+ if (t->timestamp > t->heap->timestamp)
+ t->heap->timestamp = t->timestamp;
+
+ t->heap->texture_swaps[0]++;
+ move_to_tail( t->heap->swapped_objects, t );
+ t->heap = NULL;
+ }
+ else {
+ assert( t->heap == NULL );
+ }
+
+
+ for ( face = 0 ; face < 6 ; face++ ) {
+ t->dirty_images[face] = ~0;
+ }
+}
+
+
+
+
+/**
+ * Destroy hardware state associated with texture \a t. Calls the
+ * \a destroy_texture_object method associated with the heap from which
+ * \a t was allocated.
+ *
+ * \param t Texture object to be destroyed
+ */
+
+void driDestroyTextureObject( driTextureObject * t )
+{
+ driTexHeap * heap;
+
+
+ if ( 0 ) {
+ fprintf( stderr, "[%s:%d] freeing %p (tObj = %p, DriverData = %p)\n",
+ __FILE__, __LINE__,
+ (void *)t,
+ (void *)((t != NULL) ? t->tObj : NULL),
+ (void *)((t != NULL && t->tObj != NULL) ? t->tObj->DriverData : NULL ));
+ }
+
+ if ( t != NULL ) {
+ if ( t->memBlock ) {
+ heap = t->heap;
+ assert( heap != NULL );
+
+ heap->texture_swaps[0]++;
+
+ mmFreeMem( t->memBlock );
+ t->memBlock = NULL;
+
+ if (t->timestamp > t->heap->timestamp)
+ t->heap->timestamp = t->timestamp;
+
+ heap->destroy_texture_object( heap->driverContext, t );
+ t->heap = NULL;
+ }
+
+ if ( t->tObj != NULL ) {
+ assert( t->tObj->DriverData == t );
+ t->tObj->DriverData = NULL;
+ }
+
+ remove_from_list( t );
+ FREE( t );
+ }
+
+ if ( 0 ) {
+ fprintf( stderr, "[%s:%d] done freeing %p\n", __FILE__, __LINE__, (void *)t );
+ }
+}
+
+
+
+
+/**
+ * Update the local heap's representation of texture memory based on
+ * data in the SAREA. This is done each time it is detected that some other
+ * direct rendering client has held the lock. This pertains to both our local
+ * textures and the textures belonging to other clients. Keep track of other
+ * client's textures by pushing a placeholder texture onto the LRU list --
+ * these are denoted by \a tObj being \a NULL.
+ *
+ * \param heap Heap whose state is to be updated
+ * \param offset Byte offset in the heap that has been stolen
+ * \param size Size, in bytes, of the stolen block
+ * \param in_use Non-zero if the block is pinned/reserved by the kernel
+ */
+
+static void driTexturesGone( driTexHeap * heap, int offset, int size,
+ int in_use )
+{
+ driTextureObject * t;
+ driTextureObject * tmp;
+
+
+ foreach_s ( t, tmp, & heap->texture_objects ) {
+ if ( (t->memBlock->ofs < (offset + size))
+ && ((t->memBlock->ofs + t->memBlock->size) > offset) ) {
+ /* It overlaps - kick it out. If the texture object is just a
+ * place holder, then destroy it all together. Otherwise, mark
+ * it as being swapped out.
+ */
+
+ if ( t->tObj != NULL ) {
+ driSwapOutTextureObject( t );
+ }
+ else {
+ driDestroyTextureObject( t );
+ }
+ }
+ }
+
+
+ {
+ t = (driTextureObject *) CALLOC( heap->texture_object_size );
+ if ( t == NULL ) return;
+
+ t->memBlock = mmAllocMem( heap->memory_heap, size, 0, offset );
+ if ( t->memBlock == NULL ) {
+ fprintf( stderr, "Couldn't alloc placeholder: heap %u sz %x ofs %x\n", heap->heapId,
+ (int)size, (int)offset );
+ mmDumpMemInfo( heap->memory_heap );
+ FREE(t);
+ return;
+ }
+ t->heap = heap;
+ if (in_use)
+ t->reserved = 1;
+ insert_at_head( & heap->texture_objects, t );
+ }
+}
+
+
+
+
+/**
+ * Called by the client on lock contention to determine whether textures have
+ * been stolen. If another client has modified a region in which we have
+ * textures, then we need to figure out which of our textures have been
+ * removed and update our global LRU.
+ *
+ * \param heap Texture heap to be updated
+ */
+
+void driAgeTextures( driTexHeap * heap )
+{
+ drmTextureRegionPtr list = heap->global_regions;
+ unsigned sz = 1U << (heap->logGranularity);
+ unsigned i, nr = 0;
+
+
+ /* Have to go right round from the back to ensure stuff ends up
+ * LRU in the local list... Fix with a cursor pointer.
+ */
+
+ for (i = list[heap->nrRegions].prev ;
+ i != heap->nrRegions && nr < heap->nrRegions ;
+ i = list[i].prev, nr++) {
+ /* If switching texturing schemes, then the SAREA might not have been
+ * properly cleared, so we need to reset the global texture LRU.
+ */
+
+ if ( (i * sz) > heap->size ) {
+ nr = heap->nrRegions;
+ break;
+ }
+
+ if (list[i].age > heap->local_age)
+ driTexturesGone( heap, i * sz, sz, list[i].in_use);
+ }
+
+ /* Loop or uninitialized heap detected. Reset.
+ */
+
+ if (nr == heap->nrRegions) {
+ driTexturesGone( heap, 0, heap->size, 0);
+ resetGlobalLRU( heap );
+ }
+
+ if ( 0 ) {
+ printGlobalLRU( heap, __FUNCTION__ );
+ printLocalLRU( heap, __FUNCTION__ );
+ }
+
+ heap->local_age = heap->global_age[0];
+}
+
+
+
+
+#define INDEX_ARRAY_SIZE 6 /* I'm not aware of driver with more than 2 heaps */
+
+/**
+ * Allocate memory from a texture heap to hold a texture object. This
+ * routine will attempt to allocate memory for the texture from the heaps
+ * specified by \c heap_array in order. That is, first it will try to
+ * allocate from \c heap_array[0], then \c heap_array[1], and so on.
+ *
+ * \param heap_array Array of pointers to texture heaps to use
+ * \param nr_heaps Number of heap pointer in \a heap_array
+ * \param t Texture object for which space is needed
+ * \return The ID of the heap from which memory was allocated, or -1 if
+ * memory could not be allocated.
+ *
+ * \bug The replacement policy implemented by this function is horrible.
+ */
+
+
+int
+driAllocateTexture( driTexHeap * const * heap_array, unsigned nr_heaps,
+ driTextureObject * t )
+{
+ driTexHeap * heap;
+ driTextureObject * temp;
+ driTextureObject * cursor;
+ unsigned id;
+
+
+ /* In case it already has texture space, initialize heap. This also
+ * prevents GCC from issuing a warning that heap might be used
+ * uninitialized.
+ */
+
+ heap = t->heap;
+
+
+ /* Run through each of the existing heaps and try to allocate a buffer
+ * to hold the texture.
+ */
+
+ for ( id = 0 ; (t->memBlock == NULL) && (id < nr_heaps) ; id++ ) {
+ heap = heap_array[ id ];
+ if ( heap != NULL ) {
+ t->memBlock = mmAllocMem( heap->memory_heap, t->totalSize,
+ heap->alignmentShift, 0 );
+ }
+ }
+
+
+ /* Kick textures out until the requested texture fits.
+ */
+
+ if ( t->memBlock == NULL ) {
+ unsigned index[INDEX_ARRAY_SIZE];
+ unsigned nrGoodHeaps = 0;
+
+ /* Trying to avoid dynamic memory allocation. If you have more
+ * heaps, increase INDEX_ARRAY_SIZE. I'm not aware of any
+ * drivers with more than 2 tex heaps. */
+ assert( nr_heaps < INDEX_ARRAY_SIZE );
+
+ /* Sort large enough heaps by duty. Insertion sort should be
+ * fast enough for such a short array. */
+ for ( id = 0 ; id < nr_heaps ; id++ ) {
+ heap = heap_array[ id ];
+
+ if ( heap != NULL && t->totalSize <= heap->size ) {
+ unsigned j;
+
+ for ( j = 0 ; j < nrGoodHeaps; j++ ) {
+ if ( heap->duty > heap_array[ index[ j ] ]->duty )
+ break;
+ }
+
+ if ( j < nrGoodHeaps ) {
+ memmove( &index[ j+1 ], &index[ j ],
+ sizeof(index[ 0 ]) * (nrGoodHeaps - j) );
+ }
+
+ index[ j ] = id;
+
+ nrGoodHeaps++;
+ }
+ }
+
+ for ( id = 0 ; (t->memBlock == NULL) && (id < nrGoodHeaps) ; id++ ) {
+ heap = heap_array[ index[ id ] ];
+
+ for ( cursor = heap->texture_objects.prev, temp = cursor->prev;
+ cursor != &heap->texture_objects ;
+ cursor = temp, temp = cursor->prev ) {
+
+ /* The the LRU element. If the texture is bound to one of
+ * the texture units, then we cannot kick it out.
+ */
+ if ( cursor->bound || cursor->reserved ) {
+ continue;
+ }
+
+ if ( cursor->memBlock )
+ heap->duty -= cursor->memBlock->size;
+
+ /* If this is a placeholder, there's no need to keep it */
+ if (cursor->tObj)
+ driSwapOutTextureObject( cursor );
+ else
+ driDestroyTextureObject( cursor );
+
+ t->memBlock = mmAllocMem( heap->memory_heap, t->totalSize,
+ heap->alignmentShift, 0 );
+
+ if (t->memBlock)
+ break;
+ }
+ }
+
+ /* Rebalance duties. If a heap kicked more data than its duty,
+ * then all other heaps get that amount multiplied with their
+ * relative weight added to their duty. The negative duty is
+ * reset to 0. In the end all heaps have a duty >= 0.
+ *
+ * CAUTION: we must not change the heap pointer here, because it
+ * is used below to update the texture object.
+ */
+ for ( id = 0 ; id < nr_heaps ; id++ )
+ if ( heap_array[ id ] != NULL && heap_array[ id ]->duty < 0) {
+ int duty = -heap_array[ id ]->duty;
+ double weight = heap_array[ id ]->weight;
+ unsigned j;
+
+ for ( j = 0 ; j < nr_heaps ; j++ )
+ if ( j != id && heap_array[ j ] != NULL ) {
+ heap_array[ j ]->duty += (double) duty *
+ heap_array[ j ]->weight / weight;
+ }
+
+ heap_array[ id ]->duty = 0;
+ }
+ }
+
+
+ if ( t->memBlock != NULL ) {
+ /* id and heap->heapId may or may not be the same value here.
+ */
+
+ assert( heap != NULL );
+ assert( (t->heap == NULL) || (t->heap == heap) );
+
+ t->heap = heap;
+ return heap->heapId;
+ }
+ else {
+ assert( t->heap == NULL );
+
+ fprintf( stderr, "[%s:%d] unable to allocate texture\n",
+ __FUNCTION__, __LINE__ );
+ return -1;
+ }
+}
+
+
+
+
+
+
+/**
+ * Set the location where the texture-swap counter is stored.
+ */
+
+void
+driSetTextureSwapCounterLocation( driTexHeap * heap, unsigned * counter )
+{
+ heap->texture_swaps = (counter == NULL) ? & dummy_swap_counter : counter;
+}
+
+
+
+
+/**
+ * Create a new heap for texture data.
+ *
+ * \param heap_id Device-dependent heap identifier. This value
+ * will returned by driAllocateTexture when memory
+ * is allocated from this heap.
+ * \param context Device-dependent driver context. This is
+ * supplied as the first parameter to the
+ * \c destroy_tex_obj function.
+ * \param size Size, in bytes, of the texture region
+ * \param alignmentShift Alignment requirement for textures. If textures
+ * must be allocated on a 4096 byte boundry, this
+ * would be 12.
+ * \param nr_regions Number of regions into which this texture space
+ * should be partitioned
+ * \param global_regions Array of \c drmTextureRegion structures in the SAREA
+ * \param global_age Pointer to the global texture age in the SAREA
+ * \param swapped_objects Pointer to the list of texture objects that are
+ * not in texture memory (i.e., have been swapped
+ * out).
+ * \param texture_object_size Size, in bytes, of a device-dependent texture
+ * object
+ * \param destroy_tex_obj Function used to destroy a device-dependent
+ * texture object
+ *
+ * \sa driDestroyTextureHeap
+ */
+
+driTexHeap *
+driCreateTextureHeap( unsigned heap_id, void * context, unsigned size,
+ unsigned alignmentShift, unsigned nr_regions,
+ drmTextureRegionPtr global_regions, unsigned * global_age,
+ driTextureObject * swapped_objects,
+ unsigned texture_object_size,
+ destroy_texture_object_t * destroy_tex_obj
+ )
+{
+ driTexHeap * heap;
+ unsigned l;
+
+
+ if ( 0 )
+ fprintf( stderr, "%s( %u, %p, %u, %u, %u )\n",
+ __FUNCTION__,
+ heap_id, (void *)context, size, alignmentShift, nr_regions );
+
+ heap = (driTexHeap *) CALLOC( sizeof( driTexHeap ) );
+ if ( heap != NULL ) {
+ l = driLog2( (size - 1) / nr_regions );
+ if ( l < alignmentShift )
+ {
+ l = alignmentShift;
+ }
+
+ heap->logGranularity = l;
+ heap->size = size & ~((1L << l) - 1);
+
+ heap->memory_heap = mmInit( 0, heap->size );
+ if ( heap->memory_heap != NULL ) {
+ heap->heapId = heap_id;
+ heap->driverContext = context;
+
+ heap->alignmentShift = alignmentShift;
+ heap->nrRegions = nr_regions;
+ heap->global_regions = global_regions;
+ heap->global_age = global_age;
+ heap->swapped_objects = swapped_objects;
+ heap->texture_object_size = texture_object_size;
+ heap->destroy_texture_object = destroy_tex_obj;
+
+ /* Force global heap init */
+ if (heap->global_age[0] == 0)
+ heap->local_age = ~0;
+ else
+ heap->local_age = 0;
+
+ make_empty_list( & heap->texture_objects );
+ driSetTextureSwapCounterLocation( heap, NULL );
+
+ heap->weight = heap->size;
+ heap->duty = 0;
+ }
+ else {
+ FREE( heap );
+ heap = NULL;
+ }
+ }
+
+
+ if ( 0 )
+ fprintf( stderr, "%s returning %p\n", __FUNCTION__, (void *)heap );
+
+ return heap;
+}
+
+
+
+
+/** Destroys a texture heap
+ *
+ * \param heap Texture heap to be destroyed
+ */
+
+void
+driDestroyTextureHeap( driTexHeap * heap )
+{
+ driTextureObject * t;
+ driTextureObject * temp;
+
+
+ if ( heap != NULL ) {
+ foreach_s( t, temp, & heap->texture_objects ) {
+ driDestroyTextureObject( t );
+ }
+ foreach_s( t, temp, heap->swapped_objects ) {
+ driDestroyTextureObject( t );
+ }
+
+ mmDestroy( heap->memory_heap );
+ FREE( heap );
+ }
+}
+
+
+
+
+/****************************************************************************/
+/**
+ * Determine how many texels (including all mipmap levels) would be required
+ * for a texture map of size \f$2^^\c base_size_log2\f$ would require.
+ *
+ * \param base_size_log2 \f$log_2\f$ of the size of a side of the texture
+ * \param dimensions Number of dimensions of the texture. Either 2 or 3.
+ * \param faces Number of faces of the texture. Either 1 or 6 (for cube maps).
+ * \return Number of texels
+ */
+
+static unsigned
+texels_this_map_size( int base_size_log2, unsigned dimensions, unsigned faces )
+{
+ unsigned texels;
+
+
+ assert( (faces == 1) || (faces == 6) );
+ assert( (dimensions == 2) || (dimensions == 3) );
+
+ texels = 0;
+ if ( base_size_log2 >= 0 ) {
+ texels = (1U << (dimensions * base_size_log2));
+
+ /* See http://www.mail-archive.com/dri-devel@lists.sourceforge.net/msg03636.html
+ * for the complete explaination of why this formulation is used.
+ * Basically, the smaller mipmap levels sum to 0.333 the size of the
+ * level 0 map. The total size is therefore the size of the map
+ * multipled by 1.333. The +2 is there to round up.
+ */
+
+ texels = (texels * 4 * faces + 2) / 3;
+ }
+
+ return texels;
+}
+
+
+
+
+struct maps_per_heap {
+ unsigned c[32];
+};
+
+static void
+fill_in_maximums( driTexHeap * const * heaps, unsigned nr_heaps,
+ unsigned max_bytes_per_texel, unsigned max_size,
+ unsigned mipmaps_at_once, unsigned dimensions,
+ unsigned faces, struct maps_per_heap * max_textures )
+{
+ unsigned heap;
+ unsigned log2_size;
+ unsigned mask;
+
+
+ /* Determine how many textures of each size can be stored in each
+ * texture heap.
+ */
+
+ for ( heap = 0 ; heap < nr_heaps ; heap++ ) {
+ if ( heaps[ heap ] == NULL ) {
+ (void) memset( max_textures[ heap ].c, 0,
+ sizeof( max_textures[ heap ].c ) );
+ continue;
+ }
+
+ mask = (1U << heaps[ heap ]->logGranularity) - 1;
+
+ if ( 0 ) {
+ fprintf( stderr, "[%s:%d] heap[%u] = %u bytes, mask = 0x%08x\n",
+ __FILE__, __LINE__,
+ heap, heaps[ heap ]->size, mask );
+ }
+
+ for ( log2_size = max_size ; log2_size > 0 ; log2_size-- ) {
+ unsigned total;
+
+
+ /* Determine the total number of bytes required by a texture of
+ * size log2_size.
+ */
+
+ total = texels_this_map_size( log2_size, dimensions, faces )
+ - texels_this_map_size( log2_size - mipmaps_at_once,
+ dimensions, faces );
+ total *= max_bytes_per_texel;
+ total = (total + mask) & ~mask;
+
+ /* The number of textures of a given size that will fit in a heap
+ * is equal to the size of the heap divided by the size of the
+ * texture.
+ */
+
+ max_textures[ heap ].c[ log2_size ] = heaps[ heap ]->size / total;
+
+ if ( 0 ) {
+ fprintf( stderr, "[%s:%d] max_textures[%u].c[%02u] "
+ "= 0x%08x / 0x%08x "
+ "= %u (%u)\n",
+ __FILE__, __LINE__,
+ heap, log2_size,
+ heaps[ heap ]->size, total,
+ heaps[ heap ]->size / total,
+ max_textures[ heap ].c[ log2_size ] );
+ }
+ }
+ }
+}
+
+
+static unsigned
+get_max_size( unsigned nr_heaps,
+ unsigned texture_units,
+ unsigned max_size,
+ int all_textures_one_heap,
+ struct maps_per_heap * max_textures )
+{
+ unsigned heap;
+ unsigned log2_size;
+
+
+ /* Determine the largest texture size such that a texture of that size
+ * can be bound to each texture unit at the same time. Some hardware
+ * may require that all textures be in the same texture heap for
+ * multitexturing.
+ */
+
+ for ( log2_size = max_size ; log2_size > 0 ; log2_size-- ) {
+ unsigned total = 0;
+
+ for ( heap = 0 ; heap < nr_heaps ; heap++ )
+ {
+ total += max_textures[ heap ].c[ log2_size ];
+
+ if ( 0 ) {
+ fprintf( stderr, "[%s:%d] max_textures[%u].c[%02u] = %u, "
+ "total = %u\n", __FILE__, __LINE__, heap, log2_size,
+ max_textures[ heap ].c[ log2_size ], total );
+ }
+
+ if ( (max_textures[ heap ].c[ log2_size ] >= texture_units)
+ || (!all_textures_one_heap && (total >= texture_units)) ) {
+ /* The number of mipmap levels is the log-base-2 of the
+ * maximum texture size plus 1. If the maximum texture size
+ * is 1x1, the log-base-2 is 0 and 1 mipmap level (the base
+ * level) is available.
+ */
+
+ return log2_size + 1;
+ }
+ }
+ }
+
+ /* This should NEVER happen. It should always be possible to have at
+ * *least* a 1x1 texture in memory!
+ */
+ assert( log2_size != 0 );
+ return 0;
+}
+
+#define SET_MAX(f,v) \
+ do { if ( max_sizes[v] != 0 ) { limits-> f = max_sizes[v]; } } while( 0 )
+
+#define SET_MAX_RECT(f,v) \
+ do { if ( max_sizes[v] != 0 ) { limits-> f = 1 << (max_sizes[v] - 1); } } while( 0 )
+
+
+/**
+ * Given the amount of texture memory, the number of texture units, and the
+ * maximum size of a texel, calculate the maximum texture size the driver can
+ * advertise.
+ *
+ * \param heaps Texture heaps for this card
+ * \param nr_heap Number of texture heaps
+ * \param limits OpenGL contants. MaxTextureUnits must be set.
+ * \param max_bytes_per_texel Maximum size of a single texel, in bytes
+ * \param max_2D_size \f$\log_2\f$ of the maximum 2D texture size (i.e.,
+ * 1024x1024 textures, this would be 10)
+ * \param max_3D_size \f$\log_2\f$ of the maximum 3D texture size (i.e.,
+ * 1024x1024x1024 textures, this would be 10)
+ * \param max_cube_size \f$\log_2\f$ of the maximum cube texture size (i.e.,
+ * 1024x1024 textures, this would be 10)
+ * \param max_rect_size \f$\log_2\f$ of the maximum texture rectangle size
+ * (i.e., 1024x1024 textures, this would be 10). This is a power-of-2
+ * even though texture rectangles need not be a power-of-2.
+ * \param mipmaps_at_once Total number of mipmaps that can be used
+ * at one time. For most hardware this will be \f$\c max_size + 1\f$.
+ * For hardware that does not support mipmapping, this will be 1.
+ * \param all_textures_one_heap True if the hardware requires that all
+ * textures be in a single texture heap for multitexturing.
+ * \param allow_larger_textures 0 conservative, 1 calculate limits
+ * so at least one worst-case texture can fit, 2 just use hw limits.
+ */
+
+void
+driCalculateMaxTextureLevels( driTexHeap * const * heaps,
+ unsigned nr_heaps,
+ struct gl_constants * limits,
+ unsigned max_bytes_per_texel,
+ unsigned max_2D_size,
+ unsigned max_3D_size,
+ unsigned max_cube_size,
+ unsigned max_rect_size,
+ unsigned mipmaps_at_once,
+ int all_textures_one_heap,
+ int allow_larger_textures )
+{
+ struct maps_per_heap max_textures[8];
+ unsigned i;
+ const unsigned dimensions[4] = { 2, 3, 2, 2 };
+ const unsigned faces[4] = { 1, 1, 6, 1 };
+ unsigned max_sizes[4];
+ unsigned mipmaps[4];
+
+
+ max_sizes[0] = max_2D_size;
+ max_sizes[1] = max_3D_size;
+ max_sizes[2] = max_cube_size;
+ max_sizes[3] = max_rect_size;
+
+ mipmaps[0] = mipmaps_at_once;
+ mipmaps[1] = mipmaps_at_once;
+ mipmaps[2] = mipmaps_at_once;
+ mipmaps[3] = 1;
+
+
+ /* Calculate the maximum number of texture levels in two passes. The
+ * first pass determines how many textures of each power-of-two size
+ * (including all mipmap levels for that size) can fit in each texture
+ * heap. The second pass finds the largest texture size that allows
+ * a texture of that size to be bound to every texture unit.
+ */
+
+ for ( i = 0 ; i < 4 ; i++ ) {
+ if ( (allow_larger_textures != 2) && (max_sizes[ i ] != 0) ) {
+ fill_in_maximums( heaps, nr_heaps, max_bytes_per_texel,
+ max_sizes[ i ], mipmaps[ i ],
+ dimensions[ i ], faces[ i ],
+ max_textures );
+
+ max_sizes[ i ] = get_max_size( nr_heaps,
+ allow_larger_textures == 1 ?
+ 1 : limits->MaxTextureUnits,
+ max_sizes[ i ],
+ all_textures_one_heap,
+ max_textures );
+ }
+ else if (max_sizes[ i ] != 0) {
+ max_sizes[ i ] += 1;
+ }
+ }
+
+ SET_MAX( MaxTextureLevels, 0 );
+ SET_MAX( Max3DTextureLevels, 1 );
+ SET_MAX( MaxCubeTextureLevels, 2 );
+ SET_MAX_RECT( MaxTextureRectSize, 3 );
+}
+
+
+
+
+/**
+ * Perform initial binding of default textures objects on a per unit, per
+ * texture target basis.
+ *
+ * \param ctx Current OpenGL context
+ * \param swapped List of swapped-out textures
+ * \param targets Bit-mask of value texture targets
+ */
+
+void driInitTextureObjects( struct gl_context *ctx, driTextureObject * swapped,
+ GLuint targets )
+{
+ struct gl_texture_object *texObj;
+ GLuint tmp = ctx->Texture.CurrentUnit;
+ unsigned i;
+
+
+ for ( i = 0 ; i < ctx->Const.MaxTextureUnits ; i++ ) {
+ ctx->Texture.CurrentUnit = i;
+
+ if ( (targets & DRI_TEXMGR_DO_TEXTURE_1D) != 0 ) {
+ texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_1D_INDEX];
+ ctx->Driver.BindTexture( ctx, GL_TEXTURE_1D, texObj );
+ move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
+ }
+
+ if ( (targets & DRI_TEXMGR_DO_TEXTURE_2D) != 0 ) {
+ texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_2D_INDEX];
+ ctx->Driver.BindTexture( ctx, GL_TEXTURE_2D, texObj );
+ move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
+ }
+
+ if ( (targets & DRI_TEXMGR_DO_TEXTURE_3D) != 0 ) {
+ texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_3D_INDEX];
+ ctx->Driver.BindTexture( ctx, GL_TEXTURE_3D, texObj );
+ move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
+ }
+
+ if ( (targets & DRI_TEXMGR_DO_TEXTURE_CUBE) != 0 ) {
+ texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_CUBE_INDEX];
+ ctx->Driver.BindTexture( ctx, GL_TEXTURE_CUBE_MAP_ARB, texObj );
+ move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
+ }
+
+ if ( (targets & DRI_TEXMGR_DO_TEXTURE_RECT) != 0 ) {
+ texObj = ctx->Texture.Unit[i].CurrentTex[TEXTURE_RECT_INDEX];
+ ctx->Driver.BindTexture( ctx, GL_TEXTURE_RECTANGLE_NV, texObj );
+ move_to_tail( swapped, (driTextureObject *) texObj->DriverData );
+ }
+ }
+
+ ctx->Texture.CurrentUnit = tmp;
+}
+
+
+
+
+/**
+ * Verify that the specified texture is in the specificed heap.
+ *
+ * \param tex Texture to be tested.
+ * \param heap Texture memory heap to be tested.
+ * \return True if the texture is in the heap, false otherwise.
+ */
+
+static GLboolean
+check_in_heap( const driTextureObject * tex, const driTexHeap * heap )
+{
+#if 1
+ return tex->heap == heap;
+#else
+ driTextureObject * curr;
+
+ foreach( curr, & heap->texture_objects ) {
+ if ( curr == tex ) {
+ break;
+ }
+ }
+
+ return curr == tex;
+#endif
+}
+
+
+
+/****************************************************************************/
+/**
+ * Validate the consistency of a set of texture heaps.
+ * Original version by Keith Whitwell in r200/r200_sanity.c.
+ */
+
+GLboolean
+driValidateTextureHeaps( driTexHeap * const * texture_heaps,
+ unsigned nr_heaps, const driTextureObject * swapped )
+{
+ driTextureObject *t;
+ unsigned i;
+
+ for ( i = 0 ; i < nr_heaps ; i++ ) {
+ int last_end = 0;
+ unsigned textures_in_heap = 0;
+ unsigned blocks_in_mempool = 0;
+ const driTexHeap * heap = texture_heaps[i];
+ const struct mem_block *p = heap->memory_heap;
+
+ /* Check each texture object has a MemBlock, and is linked into
+ * the correct heap.
+ *
+ * Check the texobj base address corresponds to the MemBlock
+ * range. Check the texobj size (recalculate?) fits within
+ * the MemBlock.
+ *
+ * Count the number of texobj's using this heap.
+ */
+
+ foreach ( t, &heap->texture_objects ) {
+ if ( !check_in_heap( t, heap ) ) {
+ fprintf( stderr, "%s memory block for texture object @ %p not "
+ "found in heap #%d\n",
+ __FUNCTION__, (void *)t, i );
+ return GL_FALSE;
+ }
+
+
+ if ( t->totalSize > t->memBlock->size ) {
+ fprintf( stderr, "%s: Memory block for texture object @ %p is "
+ "only %u bytes, but %u are required\n",
+ __FUNCTION__, (void *)t, t->totalSize, t->memBlock->size );
+ return GL_FALSE;
+ }
+
+ textures_in_heap++;
+ }
+
+ /* Validate the contents of the heap:
+ * - Ordering
+ * - Overlaps
+ * - Bounds
+ */
+
+ while ( p != NULL ) {
+ if (p->reserved) {
+ fprintf( stderr, "%s: Block (%08x,%x), is reserved?!\n",
+ __FUNCTION__, p->ofs, p->size );
+ return GL_FALSE;
+ }
+
+ if (p->ofs != last_end) {
+ fprintf( stderr, "%s: blocks_in_mempool = %d, last_end = %d, p->ofs = %d\n",
+ __FUNCTION__, blocks_in_mempool, last_end, p->ofs );
+ return GL_FALSE;
+ }
+
+ if (!p->reserved && !p->free) {
+ blocks_in_mempool++;
+ }
+
+ last_end = p->ofs + p->size;
+ p = p->next;
+ }
+
+ if (textures_in_heap != blocks_in_mempool) {
+ fprintf( stderr, "%s: Different number of textures objects (%u) and "
+ "inuse memory blocks (%u)\n",
+ __FUNCTION__, textures_in_heap, blocks_in_mempool );
+ return GL_FALSE;
+ }
+
+#if 0
+ fprintf( stderr, "%s: textures_in_heap = %u\n",
+ __FUNCTION__, textures_in_heap );
+#endif
+ }
+
+
+ /* Check swapped texobj's have zero memblocks
+ */
+ i = 0;
+ foreach ( t, swapped ) {
+ if ( t->memBlock != NULL ) {
+ fprintf( stderr, "%s: Swapped texobj %p has non-NULL memblock %p\n",
+ __FUNCTION__, (void *)t, (void *)t->memBlock );
+ return GL_FALSE;
+ }
+ i++;
+ }
+
+#if 0
+ fprintf( stderr, "%s: swapped texture count = %u\n", __FUNCTION__, i );
+#endif
+
+ return GL_TRUE;
+}
+
+
+
+
+/****************************************************************************/
+/**
+ * Compute which mipmap levels that really need to be sent to the hardware.
+ * This depends on the base image size, GL_TEXTURE_MIN_LOD,
+ * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
+ */
+
+void
+driCalculateTextureFirstLastLevel( driTextureObject * t )
+{
+ struct gl_texture_object * const tObj = t->tObj;
+ const struct gl_texture_image * const baseImage =
+ tObj->Image[0][tObj->BaseLevel];
+
+ /* These must be signed values. MinLod and MaxLod can be negative numbers,
+ * and having firstLevel and lastLevel as signed prevents the need for
+ * extra sign checks.
+ */
+ int firstLevel;
+ int lastLevel;
+
+ /* Yes, this looks overly complicated, but it's all needed.
+ */
+
+ switch (tObj->Target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_CUBE_MAP:
+ if (tObj->Sampler.MinFilter == GL_NEAREST ||
+ tObj->Sampler.MinFilter == GL_LINEAR) {
+ /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
+ */
+
+ firstLevel = lastLevel = tObj->BaseLevel;
+ }
+ else {
+ firstLevel = tObj->BaseLevel + (GLint)(tObj->Sampler.MinLod + 0.5);
+ firstLevel = MAX2(firstLevel, tObj->BaseLevel);
+ firstLevel = MIN2(firstLevel, tObj->BaseLevel + baseImage->MaxLog2);
+ lastLevel = tObj->BaseLevel + (GLint)(tObj->Sampler.MaxLod + 0.5);
+ lastLevel = MAX2(lastLevel, t->tObj->BaseLevel);
+ lastLevel = MIN2(lastLevel, t->tObj->BaseLevel + baseImage->MaxLog2);
+ lastLevel = MIN2(lastLevel, t->tObj->MaxLevel);
+ lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */
+ }
+ break;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_TEXTURE_4D_SGIS:
+ firstLevel = lastLevel = 0;
+ break;
+ default:
+ return;
+ }
+
+ /* save these values */
+ t->firstLevel = firstLevel;
+ t->lastLevel = lastLevel;
+}
+
+
+
+
+/**
+ * \name DRI texture formats. These vars are initialized to either the
+ * big- or little-endian Mesa formats.
+ */
+/*@{*/
+gl_format _dri_texformat_rgba8888 = MESA_FORMAT_NONE;
+gl_format _dri_texformat_argb8888 = MESA_FORMAT_NONE;
+gl_format _dri_texformat_rgb565 = MESA_FORMAT_NONE;
+gl_format _dri_texformat_argb4444 = MESA_FORMAT_NONE;
+gl_format _dri_texformat_argb1555 = MESA_FORMAT_NONE;
+gl_format _dri_texformat_al88 = MESA_FORMAT_NONE;
+gl_format _dri_texformat_a8 = MESA_FORMAT_A8;
+gl_format _dri_texformat_i8 = MESA_FORMAT_I8;
+gl_format _dri_texformat_l8 = MESA_FORMAT_L8;
+/*@}*/
+
+
+/**
+ * Initialize _dri_texformat_* vars according to whether we're on
+ * a big or little endian system.
+ */
+void
+driInitTextureFormats(void)
+{
+ if (_mesa_little_endian()) {
+ _dri_texformat_rgba8888 = MESA_FORMAT_RGBA8888;
+ _dri_texformat_argb8888 = MESA_FORMAT_ARGB8888;
+ _dri_texformat_rgb565 = MESA_FORMAT_RGB565;
+ _dri_texformat_argb4444 = MESA_FORMAT_ARGB4444;
+ _dri_texformat_argb1555 = MESA_FORMAT_ARGB1555;
+ _dri_texformat_al88 = MESA_FORMAT_AL88;
+ }
+ else {
+ _dri_texformat_rgba8888 = MESA_FORMAT_RGBA8888_REV;
+ _dri_texformat_argb8888 = MESA_FORMAT_ARGB8888_REV;
+ _dri_texformat_rgb565 = MESA_FORMAT_RGB565_REV;
+ _dri_texformat_argb4444 = MESA_FORMAT_ARGB4444_REV;
+ _dri_texformat_argb1555 = MESA_FORMAT_ARGB1555_REV;
+ _dri_texformat_al88 = MESA_FORMAT_AL88_REV;
+ }
+}
diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index 63b3fe94c..13a13eade 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -1,820 +1,820 @@
-/*
- * 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];
-
- (void) psp;
- (void) have_back_buffer;
-
- 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;
- (void) sPriv;
-}
-
-
-/**
- * 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;
-
- (void) ctx;
- (void) internalFormat;
-
- 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;
-
- (void) sPriv;
- (void) isPixmap;
-
- 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;
-
- (void) x;
- (void) y;
- (void) w;
- (void) h;
- 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;
-
- 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);
- 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];
+
+ (void) psp;
+ (void) have_back_buffer;
+
+ 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;
+ (void) sPriv;
+}
+
+
+/**
+ * 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;
+
+ (void) ctx;
+ (void) internalFormat;
+
+ 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;
+
+ (void) sPriv;
+ (void) isPixmap;
+
+ 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;
+
+ (void) x;
+ (void) y;
+ (void) w;
+ (void) h;
+ 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;
+
+ 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);
+ 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
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 01:46:28 +0000