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-rw-r--r--mesalib/src/mesa/drivers/dri/common/dri_util.c2042
-rw-r--r--mesalib/src/mesa/drivers/dri/common/dri_util.h1120
-rw-r--r--mesalib/src/mesa/drivers/dri/swrast/swrast.c2
-rw-r--r--mesalib/src/mesa/drivers/windows/gdi/wmesa.c3323
-rw-r--r--mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c4424
5 files changed, 5468 insertions, 5443 deletions
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.c b/mesalib/src/mesa/drivers/dri/common/dri_util.c
index 8b3b55e5e..82638fa72 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.c
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.c
@@ -1,1012 +1,1030 @@
-/**
- * \file dri_util.c
- * DRI utility functions.
- *
- * This module acts as glue between GLX and the actual hardware driver. A DRI
- * driver doesn't really \e have to use any of this - it's optional. But, some
- * useful stuff is done here that otherwise would have to be duplicated in most
- * drivers.
- *
- * Basically, these utility functions take care of some of the dirty details of
- * screen initialization, context creation, context binding, DRM setup, etc.
- *
- * These functions are compiled into each DRI driver so libGL.so knows nothing
- * about them.
- */
-
-
-#include <assert.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <stdio.h>
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((void *)-1)
-#endif
-
-#include "main/imports.h"
-#define None 0
-
-#include "dri_util.h"
-#include "drm_sarea.h"
-#include "utils.h"
-#include "xmlpool.h"
-#include "../glsl/glsl_parser_extras.h"
-
-PUBLIC const char __dri2ConfigOptions[] =
- DRI_CONF_BEGIN
- DRI_CONF_SECTION_PERFORMANCE
- DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1)
- DRI_CONF_SECTION_END
- DRI_CONF_END;
-
-static const uint __dri2NConfigOptions = 1;
-
-#ifndef GLX_OML_sync_control
-typedef GLboolean ( * PFNGLXGETMSCRATEOMLPROC) (__DRIdrawable *drawable, int32_t *numerator, int32_t *denominator);
-#endif
-
-static void dri_get_drawable(__DRIdrawable *pdp);
-static void dri_put_drawable(__DRIdrawable *pdp);
-
-/**
- * This is just a token extension used to signal that the driver
- * supports setting a read drawable.
- */
-const __DRIextension driReadDrawableExtension = {
- __DRI_READ_DRAWABLE, __DRI_READ_DRAWABLE_VERSION
-};
-
-GLint
-driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 )
-{
- if (rect2.x1 > rect1.x1) rect1.x1 = rect2.x1;
- if (rect2.x2 < rect1.x2) rect1.x2 = rect2.x2;
- if (rect2.y1 > rect1.y1) rect1.y1 = rect2.y1;
- if (rect2.y2 < rect1.y2) rect1.y2 = rect2.y2;
-
- if (rect1.x1 > rect1.x2 || rect1.y1 > rect1.y2) return 0;
-
- return (rect1.x2 - rect1.x1) * (rect1.y2 - rect1.y1);
-}
-
-/*****************************************************************/
-/** \name Context (un)binding functions */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Unbind context.
- *
- * \param scrn the screen.
- * \param gc context.
- *
- * \return \c GL_TRUE on success, or \c GL_FALSE on failure.
- *
- * \internal
- * This function calls __DriverAPIRec::UnbindContext, and then decrements
- * __DRIdrawableRec::refcount which must be non-zero for a successful
- * return.
- *
- * While casting the opaque private pointers associated with the parameters
- * into their respective real types it also assures they are not \c NULL.
- */
-static int driUnbindContext(__DRIcontext *pcp)
-{
- __DRIscreen *psp;
- __DRIdrawable *pdp;
- __DRIdrawable *prp;
-
- /*
- ** Assume error checking is done properly in glXMakeCurrent before
- ** calling driUnbindContext.
- */
-
- if (pcp == NULL)
- return GL_FALSE;
-
- psp = pcp->driScreenPriv;
- pdp = pcp->driDrawablePriv;
- prp = pcp->driReadablePriv;
-
- /* already unbound */
- if (!pdp && !prp)
- return GL_TRUE;
- /* Let driver unbind drawable from context */
- (*psp->DriverAPI.UnbindContext)(pcp);
-
- assert(pdp);
- if (pdp->refcount == 0) {
- /* ERROR!!! */
- return GL_FALSE;
- }
-
- dri_put_drawable(pdp);
-
- if (prp != pdp) {
- if (prp->refcount == 0) {
- /* ERROR!!! */
- return GL_FALSE;
- }
-
- dri_put_drawable(prp);
- }
-
-
- /* XXX this is disabled so that if we call SwapBuffers on an unbound
- * window we can determine the last context bound to the window and
- * use that context's lock. (BrianP, 2-Dec-2000)
- */
- pcp->driDrawablePriv = pcp->driReadablePriv = NULL;
-
- return GL_TRUE;
-}
-
-/**
- * This function takes both a read buffer and a draw buffer. This is needed
- * for \c glXMakeCurrentReadSGI or GLX 1.3's \c glXMakeContextCurrent
- * function.
- */
-static int driBindContext(__DRIcontext *pcp,
- __DRIdrawable *pdp,
- __DRIdrawable *prp)
-{
- __DRIscreen *psp = NULL;
-
- /*
- ** Assume error checking is done properly in glXMakeCurrent before
- ** calling driUnbindContext.
- */
-
- if (!pcp)
- return GL_FALSE;
-
- /* Bind the drawable to the context */
- psp = pcp->driScreenPriv;
- pcp->driDrawablePriv = pdp;
- pcp->driReadablePriv = prp;
- if (pdp) {
- pdp->driContextPriv = pcp;
- dri_get_drawable(pdp);
- }
- if (prp && pdp != prp) {
- dri_get_drawable(prp);
- }
-
- /*
- ** Now that we have a context associated with this drawable, we can
- ** initialize the drawable information if has not been done before.
- */
-
- if (!psp->dri2.enabled) {
- if (pdp && !pdp->pStamp) {
- DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
- __driUtilUpdateDrawableInfo(pdp);
- DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
- }
- if (prp && pdp != prp && !prp->pStamp) {
- DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
- __driUtilUpdateDrawableInfo(prp);
- DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
- }
- }
-
- /* Call device-specific MakeCurrent */
- return (*psp->DriverAPI.MakeCurrent)(pcp, pdp, prp);
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Drawable handling functions */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Update private drawable information.
- *
- * \param pdp pointer to the private drawable information to update.
- *
- * This function basically updates the __DRIdrawable struct's
- * cliprect information by calling \c __DRIinterfaceMethods::getDrawableInfo.
- * This is usually called by the DRI_VALIDATE_DRAWABLE_INFO macro which
- * compares the __DRIdrwablePrivate pStamp and lastStamp values. If
- * the values are different that means we have to update the clipping
- * info.
- */
-void
-__driUtilUpdateDrawableInfo(__DRIdrawable *pdp)
-{
- __DRIscreen *psp = pdp->driScreenPriv;
- __DRIcontext *pcp = pdp->driContextPriv;
-
- if (!pcp
- || ((pdp != pcp->driDrawablePriv) && (pdp != pcp->driReadablePriv))) {
- /* ERROR!!!
- * ...but we must ignore it. There can be many contexts bound to a
- * drawable.
- */
- }
-
- if (pdp->pClipRects) {
- free(pdp->pClipRects);
- pdp->pClipRects = NULL;
- }
-
- if (pdp->pBackClipRects) {
- free(pdp->pBackClipRects);
- pdp->pBackClipRects = NULL;
- }
-
- DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-
- if (! (*psp->getDrawableInfo->getDrawableInfo)(pdp,
- &pdp->index, &pdp->lastStamp,
- &pdp->x, &pdp->y, &pdp->w, &pdp->h,
- &pdp->numClipRects, &pdp->pClipRects,
- &pdp->backX,
- &pdp->backY,
- &pdp->numBackClipRects,
- &pdp->pBackClipRects,
- pdp->loaderPrivate)) {
- /* Error -- eg the window may have been destroyed. Keep going
- * with no cliprects.
- */
- pdp->pStamp = &pdp->lastStamp; /* prevent endless loop */
- pdp->numClipRects = 0;
- pdp->pClipRects = NULL;
- pdp->numBackClipRects = 0;
- pdp->pBackClipRects = NULL;
- }
- else
- pdp->pStamp = &(psp->pSAREA->drawableTable[pdp->index].stamp);
-
- DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
-}
-
-/*@}*/
-
-/*****************************************************************/
-/** \name GLX callbacks */
-/*****************************************************************/
-/*@{*/
-
-static void driReportDamage(__DRIdrawable *pdp,
- struct drm_clip_rect *pClipRects, int numClipRects)
-{
- __DRIscreen *psp = pdp->driScreenPriv;
-
- /* Check that we actually have the new damage report method */
- if (psp->damage) {
- /* Report the damage. Currently, all our drivers draw
- * directly to the front buffer, so we report the damage there
- * rather than to the backing storein (if any).
- */
- (*psp->damage->reportDamage)(pdp,
- pdp->x, pdp->y,
- pClipRects, numClipRects,
- GL_TRUE, pdp->loaderPrivate);
- }
-}
-
-
-/**
- * Swap buffers.
- *
- * \param drawablePrivate opaque pointer to the per-drawable private info.
- *
- * \internal
- * This function calls __DRIdrawable::swapBuffers.
- *
- * Is called directly from glXSwapBuffers().
- */
-static void driSwapBuffers(__DRIdrawable *dPriv)
-{
- __DRIscreen *psp = dPriv->driScreenPriv;
- drm_clip_rect_t *rects;
- int i;
-
- psp->DriverAPI.SwapBuffers(dPriv);
-
- if (!dPriv->numClipRects)
- return;
-
- rects = malloc(sizeof(*rects) * dPriv->numClipRects);
-
- if (!rects)
- return;
-
- for (i = 0; i < dPriv->numClipRects; i++) {
- rects[i].x1 = dPriv->pClipRects[i].x1 - dPriv->x;
- rects[i].y1 = dPriv->pClipRects[i].y1 - dPriv->y;
- rects[i].x2 = dPriv->pClipRects[i].x2 - dPriv->x;
- rects[i].y2 = dPriv->pClipRects[i].y2 - dPriv->y;
- }
-
- driReportDamage(dPriv, rects, dPriv->numClipRects);
- free(rects);
-}
-
-static int driDrawableGetMSC( __DRIscreen *sPriv, __DRIdrawable *dPriv,
- int64_t *msc )
-{
- return sPriv->DriverAPI.GetDrawableMSC(sPriv, dPriv, msc);
-}
-
-
-static int driWaitForMSC(__DRIdrawable *dPriv, int64_t target_msc,
- int64_t divisor, int64_t remainder,
- int64_t * msc, int64_t * sbc)
-{
- __DRIswapInfo sInfo;
- int status;
-
- status = dPriv->driScreenPriv->DriverAPI.WaitForMSC( dPriv, target_msc,
- divisor, remainder,
- msc );
-
- /* GetSwapInfo() may not be provided by the driver if GLX_SGI_video_sync
- * is supported but GLX_OML_sync_control is not. Therefore, don't return
- * an error value if GetSwapInfo() is not implemented.
- */
- if ( status == 0
- && dPriv->driScreenPriv->DriverAPI.GetSwapInfo ) {
- status = dPriv->driScreenPriv->DriverAPI.GetSwapInfo( dPriv, & sInfo );
- *sbc = sInfo.swap_count;
- }
-
- return status;
-}
-
-
-const __DRImediaStreamCounterExtension driMediaStreamCounterExtension = {
- { __DRI_MEDIA_STREAM_COUNTER, __DRI_MEDIA_STREAM_COUNTER_VERSION },
- driWaitForMSC,
- driDrawableGetMSC,
-};
-
-
-static void driCopySubBuffer(__DRIdrawable *dPriv,
- int x, int y, int w, int h)
-{
- drm_clip_rect_t rect;
-
- rect.x1 = x;
- rect.y1 = dPriv->h - y - h;
- rect.x2 = x + w;
- rect.y2 = rect.y1 + h;
- driReportDamage(dPriv, &rect, 1);
-
- dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);
-}
-
-const __DRIcopySubBufferExtension driCopySubBufferExtension = {
- { __DRI_COPY_SUB_BUFFER, __DRI_COPY_SUB_BUFFER_VERSION },
- driCopySubBuffer
-};
-
-static void driSetSwapInterval(__DRIdrawable *dPriv, unsigned int interval)
-{
- dPriv->swap_interval = interval;
-}
-
-static unsigned int driGetSwapInterval(__DRIdrawable *dPriv)
-{
- return dPriv->swap_interval;
-}
-
-const __DRIswapControlExtension driSwapControlExtension = {
- { __DRI_SWAP_CONTROL, __DRI_SWAP_CONTROL_VERSION },
- driSetSwapInterval,
- driGetSwapInterval
-};
-
-
-/**
- * This is called via __DRIscreenRec's createNewDrawable pointer.
- */
-static __DRIdrawable *
-driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config,
- drm_drawable_t hwDrawable, int renderType,
- const int *attrs, void *data)
-{
- __DRIdrawable *pdp;
-
- /* Since pbuffers are not yet supported, no drawable attributes are
- * supported either.
- */
- (void) attrs;
-
- pdp = malloc(sizeof *pdp);
- if (!pdp) {
- return NULL;
- }
-
- pdp->driContextPriv = NULL;
- pdp->loaderPrivate = data;
- pdp->hHWDrawable = hwDrawable;
- pdp->refcount = 1;
- pdp->pStamp = NULL;
- pdp->lastStamp = 0;
- pdp->index = 0;
- pdp->x = 0;
- pdp->y = 0;
- pdp->w = 0;
- pdp->h = 0;
- pdp->numClipRects = 0;
- pdp->numBackClipRects = 0;
- pdp->pClipRects = NULL;
- pdp->pBackClipRects = NULL;
- pdp->vblSeq = 0;
- pdp->vblFlags = 0;
-
- pdp->driScreenPriv = psp;
-
- if (!(*psp->DriverAPI.CreateBuffer)(psp, pdp, &config->modes, 0)) {
- free(pdp);
- return NULL;
- }
-
- pdp->msc_base = 0;
-
- /* This special default value is replaced with the configured
- * default value when the drawable is first bound to a direct
- * rendering context.
- */
- pdp->swap_interval = (unsigned)-1;
-
- return pdp;
-}
-
-
-static __DRIdrawable *
-dri2CreateNewDrawable(__DRIscreen *screen,
- const __DRIconfig *config,
- void *loaderPrivate)
-{
- __DRIdrawable *pdraw;
-
- pdraw = driCreateNewDrawable(screen, config, 0, 0, NULL, loaderPrivate);
- if (!pdraw)
- return NULL;
-
- pdraw->pClipRects = &pdraw->dri2.clipRect;
- pdraw->pBackClipRects = &pdraw->dri2.clipRect;
-
- pdraw->pStamp = &pdraw->dri2.stamp;
- *pdraw->pStamp = pdraw->lastStamp + 1;
-
- return pdraw;
-}
-
-static int
-dri2ConfigQueryb(__DRIscreen *screen, const char *var, GLboolean *val)
-{
- if (!driCheckOption(&screen->optionCache, var, DRI_BOOL))
- return -1;
-
- *val = driQueryOptionb(&screen->optionCache, var);
-
- return 0;
-}
-
-static int
-dri2ConfigQueryi(__DRIscreen *screen, const char *var, GLint *val)
-{
- if (!driCheckOption(&screen->optionCache, var, DRI_INT) &&
- !driCheckOption(&screen->optionCache, var, DRI_ENUM))
- return -1;
-
- *val = driQueryOptioni(&screen->optionCache, var);
-
- return 0;
-}
-
-static int
-dri2ConfigQueryf(__DRIscreen *screen, const char *var, GLfloat *val)
-{
- if (!driCheckOption(&screen->optionCache, var, DRI_FLOAT))
- return -1;
-
- *val = driQueryOptionf(&screen->optionCache, var);
-
- return 0;
-}
-
-
-static void dri_get_drawable(__DRIdrawable *pdp)
-{
- pdp->refcount++;
-}
-
-static void dri_put_drawable(__DRIdrawable *pdp)
-{
- __DRIscreen *psp;
-
- if (pdp) {
- pdp->refcount--;
- if (pdp->refcount)
- return;
-
- psp = pdp->driScreenPriv;
- (*psp->DriverAPI.DestroyBuffer)(pdp);
- if (pdp->pClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {
- free(pdp->pClipRects);
- pdp->pClipRects = NULL;
- }
- if (pdp->pBackClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {
- free(pdp->pBackClipRects);
- pdp->pBackClipRects = NULL;
- }
- free(pdp);
- }
-}
-
-static void
-driDestroyDrawable(__DRIdrawable *pdp)
-{
- dri_put_drawable(pdp);
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Context handling functions */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Destroy the per-context private information.
- *
- * \internal
- * This function calls __DriverAPIRec::DestroyContext on \p contextPrivate, calls
- * drmDestroyContext(), and finally frees \p contextPrivate.
- */
-static void
-driDestroyContext(__DRIcontext *pcp)
-{
- if (pcp) {
- (*pcp->driScreenPriv->DriverAPI.DestroyContext)(pcp);
- free(pcp);
- }
-}
-
-
-/**
- * Create the per-drawable private driver information.
- *
- * \param render_type Type of rendering target. \c GLX_RGBA is the only
- * type likely to ever be supported for direct-rendering.
- * \param shared Context with which to share textures, etc. or NULL
- *
- * \returns An opaque pointer to the per-context private information on
- * success, or \c NULL on failure.
- *
- * \internal
- * This function allocates and fills a __DRIcontextRec structure. It
- * performs some device independent initialization and passes all the
- * relevent information to __DriverAPIRec::CreateContext to create the
- * context.
- *
- */
-static __DRIcontext *
-driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,
- int render_type, __DRIcontext *shared,
- drm_context_t hwContext, void *data)
-{
- __DRIcontext *pcp;
- void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
-
- pcp = malloc(sizeof *pcp);
- if (!pcp)
- return NULL;
-
- pcp->driScreenPriv = psp;
- pcp->driDrawablePriv = NULL;
- pcp->loaderPrivate = data;
-
- pcp->dri2.draw_stamp = 0;
- pcp->dri2.read_stamp = 0;
-
- pcp->hHWContext = hwContext;
-
- if ( !(*psp->DriverAPI.CreateContext)(API_OPENGL,
- &config->modes, pcp, shareCtx) ) {
- free(pcp);
- return NULL;
- }
-
- return pcp;
-}
-
-static unsigned int
-dri2GetAPIMask(__DRIscreen *screen)
-{
- return screen->api_mask;
-}
-
-static __DRIcontext *
-dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
- const __DRIconfig *config,
- __DRIcontext *shared, void *data)
-{
- __DRIcontext *context;
- const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;
- void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
- gl_api mesa_api;
-
- if (!(screen->api_mask & (1 << api)))
- return NULL;
-
- switch (api) {
- case __DRI_API_OPENGL:
- mesa_api = API_OPENGL;
- break;
- case __DRI_API_GLES:
- mesa_api = API_OPENGLES;
- break;
- case __DRI_API_GLES2:
- mesa_api = API_OPENGLES2;
- break;
- default:
- return NULL;
- }
-
- context = malloc(sizeof *context);
- if (!context)
- return NULL;
-
- context->driScreenPriv = screen;
- context->driDrawablePriv = NULL;
- context->loaderPrivate = data;
-
- if (!(*screen->DriverAPI.CreateContext)(mesa_api, modes,
- context, shareCtx) ) {
- free(context);
- return NULL;
- }
-
- return context;
-}
-
-
-static __DRIcontext *
-dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
- __DRIcontext *shared, void *data)
-{
- return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL,
- config, shared, data);
-}
-
-static int
-driCopyContext(__DRIcontext *dest, __DRIcontext *src, unsigned long mask)
-{
- return GL_FALSE;
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Screen handling functions */
-/*****************************************************************/
-/*@{*/
-
-/**
- * Destroy the per-screen private information.
- *
- * \internal
- * This function calls __DriverAPIRec::DestroyScreen on \p screenPrivate, calls
- * drmClose(), and finally frees \p screenPrivate.
- */
-static void driDestroyScreen(__DRIscreen *psp)
-{
- if (psp) {
- /* No interaction with the X-server is possible at this point. This
- * routine is called after XCloseDisplay, so there is no protocol
- * stream open to the X-server anymore.
- */
-
- _mesa_destroy_shader_compiler();
-
- if (psp->DriverAPI.DestroyScreen)
- (*psp->DriverAPI.DestroyScreen)(psp);
-
- if (!psp->dri2.enabled) {
- (void)drmUnmap((drmAddress)psp->pSAREA, SAREA_MAX);
- (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);
- (void)drmCloseOnce(psp->fd);
- } else {
- driDestroyOptionCache(&psp->optionCache);
- driDestroyOptionInfo(&psp->optionInfo);
- }
-
- free(psp);
- }
-}
-
-static void
-setupLoaderExtensions(__DRIscreen *psp,
- const __DRIextension **extensions)
-{
- int i;
-
- for (i = 0; extensions[i]; i++) {
- if (strcmp(extensions[i]->name, __DRI_GET_DRAWABLE_INFO) == 0)
- psp->getDrawableInfo = (__DRIgetDrawableInfoExtension *) extensions[i];
- if (strcmp(extensions[i]->name, __DRI_DAMAGE) == 0)
- psp->damage = (__DRIdamageExtension *) extensions[i];
- if (strcmp(extensions[i]->name, __DRI_SYSTEM_TIME) == 0)
- psp->systemTime = (__DRIsystemTimeExtension *) extensions[i];
- if (strcmp(extensions[i]->name, __DRI_DRI2_LOADER) == 0)
- psp->dri2.loader = (__DRIdri2LoaderExtension *) extensions[i];
- if (strcmp(extensions[i]->name, __DRI_IMAGE_LOOKUP) == 0)
- psp->dri2.image = (__DRIimageLookupExtension *) extensions[i];
- if (strcmp(extensions[i]->name, __DRI_USE_INVALIDATE) == 0)
- psp->dri2.useInvalidate = (__DRIuseInvalidateExtension *) extensions[i];
- }
-}
-
-/**
- * This is the bootstrap function for the driver. libGL supplies all of the
- * requisite information about the system, and the driver initializes itself.
- * This routine also fills in the linked list pointed to by \c driver_modes
- * with the \c struct gl_config that the driver can support for windows or
- * pbuffers.
- *
- * For legacy DRI.
- *
- * \param scrn Index of the screen
- * \param ddx_version Version of the 2D DDX. This may not be meaningful for
- * all drivers.
- * \param dri_version Version of the "server-side" DRI.
- * \param drm_version Version of the kernel DRM.
- * \param frame_buffer Data describing the location and layout of the
- * framebuffer.
- * \param pSAREA Pointer to the SAREA.
- * \param fd Device handle for the DRM.
- * \param extensions ??
- * \param driver_modes Returns modes suppoted by the driver
- * \param loaderPrivate ??
- *
- * \note There is no need to check the minimum API version in this
- * function. Since the name of this function is versioned, it is
- * impossible for a loader that is too old to even load this driver.
- */
-static __DRIscreen *
-driCreateNewScreen(int scrn,
- const __DRIversion *ddx_version,
- const __DRIversion *dri_version,
- const __DRIversion *drm_version,
- const __DRIframebuffer *frame_buffer,
- drmAddress pSAREA, int fd,
- const __DRIextension **extensions,
- const __DRIconfig ***driver_modes,
- void *loaderPrivate)
-{
- static const __DRIextension *emptyExtensionList[] = { NULL };
- __DRIscreen *psp;
-
- if (driDriverAPI.InitScreen == NULL)
- return NULL;
-
- psp = calloc(1, sizeof *psp);
- if (!psp)
- return NULL;
-
- setupLoaderExtensions(psp, extensions);
-
- /*
- ** NOT_DONE: This is used by the X server to detect when the client
- ** has died while holding the drawable lock. The client sets the
- ** drawable lock to this value.
- */
- psp->drawLockID = 1;
-
- psp->drm_version = *drm_version;
- psp->ddx_version = *ddx_version;
- psp->dri_version = *dri_version;
-
- psp->pSAREA = pSAREA;
- psp->lock = (drmLock *) &psp->pSAREA->lock;
-
- psp->pFB = frame_buffer->base;
- psp->fbSize = frame_buffer->size;
- psp->fbStride = frame_buffer->stride;
- psp->fbWidth = frame_buffer->width;
- psp->fbHeight = frame_buffer->height;
- psp->devPrivSize = frame_buffer->dev_priv_size;
- psp->pDevPriv = frame_buffer->dev_priv;
- psp->fbBPP = psp->fbStride * 8 / frame_buffer->width;
-
- psp->extensions = emptyExtensionList;
- psp->fd = fd;
- psp->myNum = scrn;
- psp->dri2.enabled = GL_FALSE;
-
- psp->DriverAPI = driDriverAPI;
- psp->api_mask = (1 << __DRI_API_OPENGL);
-
- *driver_modes = driDriverAPI.InitScreen(psp);
- if (*driver_modes == NULL) {
- free(psp);
- return NULL;
- }
-
- return psp;
-}
-
-/**
- * DRI2
- */
-static __DRIscreen *
-dri2CreateNewScreen(int scrn, int fd,
- const __DRIextension **extensions,
- const __DRIconfig ***driver_configs, void *data)
-{
- static const __DRIextension *emptyExtensionList[] = { NULL };
- __DRIscreen *psp;
- drmVersionPtr version;
-
- if (driDriverAPI.InitScreen2 == NULL)
- return NULL;
-
- psp = calloc(1, sizeof(*psp));
- if (!psp)
- return NULL;
-
- setupLoaderExtensions(psp, extensions);
-
- version = drmGetVersion(fd);
- if (version) {
- psp->drm_version.major = version->version_major;
- psp->drm_version.minor = version->version_minor;
- psp->drm_version.patch = version->version_patchlevel;
- drmFreeVersion(version);
- }
-
- psp->extensions = emptyExtensionList;
- psp->fd = fd;
- psp->myNum = scrn;
- psp->dri2.enabled = GL_TRUE;
-
- psp->DriverAPI = driDriverAPI;
- psp->api_mask = (1 << __DRI_API_OPENGL);
- *driver_configs = driDriverAPI.InitScreen2(psp);
- if (*driver_configs == NULL) {
- free(psp);
- return NULL;
- }
-
- psp->DriverAPI = driDriverAPI;
- psp->loaderPrivate = data;
-
- driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions,
- __dri2NConfigOptions);
- driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum,
- "dri2");
-
- return psp;
-}
-
-static const __DRIextension **driGetExtensions(__DRIscreen *psp)
-{
- return psp->extensions;
-}
-
-/** Core interface */
-const __DRIcoreExtension driCoreExtension = {
- { __DRI_CORE, __DRI_CORE_VERSION },
- NULL,
- driDestroyScreen,
- driGetExtensions,
- driGetConfigAttrib,
- driIndexConfigAttrib,
- NULL,
- driDestroyDrawable,
- driSwapBuffers,
- NULL,
- driCopyContext,
- driDestroyContext,
- driBindContext,
- driUnbindContext
-};
-
-/** Legacy DRI interface */
-const __DRIlegacyExtension driLegacyExtension = {
- { __DRI_LEGACY, __DRI_LEGACY_VERSION },
- driCreateNewScreen,
- driCreateNewDrawable,
- driCreateNewContext,
-};
-
-/** DRI2 interface */
-const __DRIdri2Extension driDRI2Extension = {
- { __DRI_DRI2, __DRI_DRI2_VERSION },
- dri2CreateNewScreen,
- dri2CreateNewDrawable,
- dri2CreateNewContext,
- dri2GetAPIMask,
- dri2CreateNewContextForAPI
-};
-
-const __DRI2configQueryExtension dri2ConfigQueryExtension = {
- { __DRI2_CONFIG_QUERY, __DRI2_CONFIG_QUERY_VERSION },
- dri2ConfigQueryb,
- dri2ConfigQueryi,
- dri2ConfigQueryf,
-};
-
-/**
- * Calculate amount of swap interval used between GLX buffer swaps.
- *
- * The usage value, on the range [0,max], is the fraction of total swap
- * interval time used between GLX buffer swaps is calculated.
- *
- * \f$p = t_d / (i * t_r)\f$
- *
- * Where \f$t_d\f$ is the time since the last GLX buffer swap, \f$i\f$ is the
- * swap interval (as set by \c glXSwapIntervalSGI), and \f$t_r\f$ time
- * required for a single vertical refresh period (as returned by \c
- * glXGetMscRateOML).
- *
- * See the documentation for the GLX_MESA_swap_frame_usage extension for more
- * details.
- *
- * \param dPriv Pointer to the private drawable structure.
- * \return If less than a single swap interval time period was required
- * between GLX buffer swaps, a number greater than 0 and less than
- * 1.0 is returned. If exactly one swap interval time period is
- * required, 1.0 is returned, and if more than one is required then
- * a number greater than 1.0 will be returned.
- *
- * \sa glXSwapIntervalSGI glXGetMscRateOML
- *
- * \todo Instead of caching the \c glXGetMscRateOML function pointer, would it
- * be possible to cache the sync rate?
- */
-float
-driCalculateSwapUsage( __DRIdrawable *dPriv, int64_t last_swap_ust,
- int64_t current_ust )
-{
- int32_t n;
- int32_t d;
- int interval;
- float usage = 1.0;
- __DRIscreen *psp = dPriv->driScreenPriv;
-
- if ( (*psp->systemTime->getMSCRate)(dPriv, &n, &d, dPriv->loaderPrivate) ) {
- interval = (dPriv->swap_interval != 0) ? dPriv->swap_interval : 1;
-
-
- /* We want to calculate
- * (current_UST - last_swap_UST) / (interval * us_per_refresh). We get
- * current_UST by calling __glXGetUST. last_swap_UST is stored in
- * dPriv->swap_ust. interval has already been calculated.
- *
- * The only tricky part is us_per_refresh. us_per_refresh is
- * 1000000 / MSC_rate. We know the MSC_rate is n / d. We can flip it
- * around and say us_per_refresh = 1000000 * d / n. Since this goes in
- * the denominator of the final calculation, we calculate
- * (interval * 1000000 * d) and move n into the numerator.
- */
-
- usage = (current_ust - last_swap_ust);
- usage *= n;
- usage /= (interval * d);
- usage /= 1000000.0;
- }
-
- return usage;
-}
-
-void
-dri2InvalidateDrawable(__DRIdrawable *drawable)
-{
- drawable->dri2.stamp++;
-}
-
-/*@}*/
+/**
+ * \file dri_util.c
+ * DRI utility functions.
+ *
+ * This module acts as glue between GLX and the actual hardware driver. A DRI
+ * driver doesn't really \e have to use any of this - it's optional. But, some
+ * useful stuff is done here that otherwise would have to be duplicated in most
+ * drivers.
+ *
+ * Basically, these utility functions take care of some of the dirty details of
+ * screen initialization, context creation, context binding, DRM setup, etc.
+ *
+ * These functions are compiled into each DRI driver so libGL.so knows nothing
+ * about them.
+ */
+
+
+#include <assert.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdio.h>
+
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
+#include "main/imports.h"
+#define None 0
+
+#include "dri_util.h"
+#include "drm_sarea.h"
+#include "utils.h"
+#include "xmlpool.h"
+#include "../glsl/glsl_parser_extras.h"
+
+PUBLIC const char __dri2ConfigOptions[] =
+ DRI_CONF_BEGIN
+ DRI_CONF_SECTION_PERFORMANCE
+ DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1)
+ DRI_CONF_SECTION_END
+ DRI_CONF_END;
+
+static const uint __dri2NConfigOptions = 1;
+
+#ifndef GLX_OML_sync_control
+typedef GLboolean ( * PFNGLXGETMSCRATEOMLPROC) (__DRIdrawable *drawable, int32_t *numerator, int32_t *denominator);
+#endif
+
+static void dri_get_drawable(__DRIdrawable *pdp);
+static void dri_put_drawable(__DRIdrawable *pdp);
+
+/**
+ * This is just a token extension used to signal that the driver
+ * supports setting a read drawable.
+ */
+const __DRIextension driReadDrawableExtension = {
+ __DRI_READ_DRAWABLE, __DRI_READ_DRAWABLE_VERSION
+};
+
+GLint
+driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 )
+{
+ if (rect2.x1 > rect1.x1) rect1.x1 = rect2.x1;
+ if (rect2.x2 < rect1.x2) rect1.x2 = rect2.x2;
+ if (rect2.y1 > rect1.y1) rect1.y1 = rect2.y1;
+ if (rect2.y2 < rect1.y2) rect1.y2 = rect2.y2;
+
+ if (rect1.x1 > rect1.x2 || rect1.y1 > rect1.y2) return 0;
+
+ return (rect1.x2 - rect1.x1) * (rect1.y2 - rect1.y1);
+}
+
+/*****************************************************************/
+/** \name Context (un)binding functions */
+/*****************************************************************/
+/*@{*/
+
+/**
+ * Unbind context.
+ *
+ * \param scrn the screen.
+ * \param gc context.
+ *
+ * \return \c GL_TRUE on success, or \c GL_FALSE on failure.
+ *
+ * \internal
+ * This function calls __DriverAPIRec::UnbindContext, and then decrements
+ * __DRIdrawableRec::refcount which must be non-zero for a successful
+ * return.
+ *
+ * While casting the opaque private pointers associated with the parameters
+ * into their respective real types it also assures they are not \c NULL.
+ */
+static int driUnbindContext(__DRIcontext *pcp)
+{
+ __DRIscreen *psp;
+ __DRIdrawable *pdp;
+ __DRIdrawable *prp;
+
+ /*
+ ** Assume error checking is done properly in glXMakeCurrent before
+ ** calling driUnbindContext.
+ */
+
+ if (pcp == NULL)
+ return GL_FALSE;
+
+ psp = pcp->driScreenPriv;
+ pdp = pcp->driDrawablePriv;
+ prp = pcp->driReadablePriv;
+
+ /* already unbound */
+ if (!pdp && !prp)
+ return GL_TRUE;
+ /* Let driver unbind drawable from context */
+ (*psp->DriverAPI.UnbindContext)(pcp);
+
+ assert(pdp);
+ if (pdp->refcount == 0) {
+ /* ERROR!!! */
+ return GL_FALSE;
+ }
+
+ dri_put_drawable(pdp);
+
+ if (prp != pdp) {
+ if (prp->refcount == 0) {
+ /* ERROR!!! */
+ return GL_FALSE;
+ }
+
+ dri_put_drawable(prp);
+ }
+
+
+ /* XXX this is disabled so that if we call SwapBuffers on an unbound
+ * window we can determine the last context bound to the window and
+ * use that context's lock. (BrianP, 2-Dec-2000)
+ */
+ pcp->driDrawablePriv = pcp->driReadablePriv = NULL;
+
+ return GL_TRUE;
+}
+
+/**
+ * This function takes both a read buffer and a draw buffer. This is needed
+ * for \c glXMakeCurrentReadSGI or GLX 1.3's \c glXMakeContextCurrent
+ * function.
+ */
+static int driBindContext(__DRIcontext *pcp,
+ __DRIdrawable *pdp,
+ __DRIdrawable *prp)
+{
+ __DRIscreen *psp = NULL;
+
+ /*
+ ** Assume error checking is done properly in glXMakeCurrent before
+ ** calling driUnbindContext.
+ */
+
+ if (!pcp)
+ return GL_FALSE;
+
+ /* Bind the drawable to the context */
+ psp = pcp->driScreenPriv;
+ pcp->driDrawablePriv = pdp;
+ pcp->driReadablePriv = prp;
+ if (pdp) {
+ pdp->driContextPriv = pcp;
+ dri_get_drawable(pdp);
+ }
+ if (prp && pdp != prp) {
+ dri_get_drawable(prp);
+ }
+
+ /*
+ ** Now that we have a context associated with this drawable, we can
+ ** initialize the drawable information if has not been done before.
+ */
+
+ if (!psp->dri2.enabled) {
+ if (pdp && !pdp->pStamp) {
+ DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
+ __driUtilUpdateDrawableInfo(pdp);
+ DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
+ }
+ if (prp && pdp != prp && !prp->pStamp) {
+ DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
+ __driUtilUpdateDrawableInfo(prp);
+ DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
+ }
+ }
+
+ /* Call device-specific MakeCurrent */
+ return (*psp->DriverAPI.MakeCurrent)(pcp, pdp, prp);
+}
+
+/*@}*/
+
+
+/*****************************************************************/
+/** \name Drawable handling functions */
+/*****************************************************************/
+/*@{*/
+
+/**
+ * Update private drawable information.
+ *
+ * \param pdp pointer to the private drawable information to update.
+ *
+ * This function basically updates the __DRIdrawable struct's
+ * cliprect information by calling \c __DRIinterfaceMethods::getDrawableInfo.
+ * This is usually called by the DRI_VALIDATE_DRAWABLE_INFO macro which
+ * compares the __DRIdrwablePrivate pStamp and lastStamp values. If
+ * the values are different that means we have to update the clipping
+ * info.
+ */
+void
+__driUtilUpdateDrawableInfo(__DRIdrawable *pdp)
+{
+ __DRIscreen *psp = pdp->driScreenPriv;
+ __DRIcontext *pcp = pdp->driContextPriv;
+
+ if (!pcp
+ || ((pdp != pcp->driDrawablePriv) && (pdp != pcp->driReadablePriv))) {
+ /* ERROR!!!
+ * ...but we must ignore it. There can be many contexts bound to a
+ * drawable.
+ */
+ }
+
+ if (pdp->pClipRects) {
+ free(pdp->pClipRects);
+ pdp->pClipRects = NULL;
+ }
+
+ if (pdp->pBackClipRects) {
+ free(pdp->pBackClipRects);
+ pdp->pBackClipRects = NULL;
+ }
+
+ DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
+
+ if (! (*psp->getDrawableInfo->getDrawableInfo)(pdp,
+ &pdp->index, &pdp->lastStamp,
+ &pdp->x, &pdp->y, &pdp->w, &pdp->h,
+ &pdp->numClipRects, &pdp->pClipRects,
+ &pdp->backX,
+ &pdp->backY,
+ &pdp->numBackClipRects,
+ &pdp->pBackClipRects,
+ pdp->loaderPrivate)) {
+ /* Error -- eg the window may have been destroyed. Keep going
+ * with no cliprects.
+ */
+ pdp->pStamp = &pdp->lastStamp; /* prevent endless loop */
+ pdp->numClipRects = 0;
+ pdp->pClipRects = NULL;
+ pdp->numBackClipRects = 0;
+ pdp->pBackClipRects = NULL;
+ }
+ else
+ pdp->pStamp = &(psp->pSAREA->drawableTable[pdp->index].stamp);
+
+ DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
+}
+
+/*@}*/
+
+/*****************************************************************/
+/** \name GLX callbacks */
+/*****************************************************************/
+/*@{*/
+
+static void driReportDamage(__DRIdrawable *pdp,
+ struct drm_clip_rect *pClipRects, int numClipRects)
+{
+ __DRIscreen *psp = pdp->driScreenPriv;
+
+ /* Check that we actually have the new damage report method */
+ if (psp->damage) {
+ /* Report the damage. Currently, all our drivers draw
+ * directly to the front buffer, so we report the damage there
+ * rather than to the backing storein (if any).
+ */
+ (*psp->damage->reportDamage)(pdp,
+ pdp->x, pdp->y,
+ pClipRects, numClipRects,
+ GL_TRUE, pdp->loaderPrivate);
+ }
+}
+
+
+/**
+ * Swap buffers.
+ *
+ * \param drawablePrivate opaque pointer to the per-drawable private info.
+ *
+ * \internal
+ * This function calls __DRIdrawable::swapBuffers.
+ *
+ * Is called directly from glXSwapBuffers().
+ */
+static void driSwapBuffers(__DRIdrawable *dPriv)
+{
+ __DRIscreen *psp = dPriv->driScreenPriv;
+ drm_clip_rect_t *rects;
+ int i;
+
+ psp->DriverAPI.SwapBuffers(dPriv);
+
+ if (!dPriv->numClipRects)
+ return;
+
+ rects = malloc(sizeof(*rects) * dPriv->numClipRects);
+
+ if (!rects)
+ return;
+
+ for (i = 0; i < dPriv->numClipRects; i++) {
+ rects[i].x1 = dPriv->pClipRects[i].x1 - dPriv->x;
+ rects[i].y1 = dPriv->pClipRects[i].y1 - dPriv->y;
+ rects[i].x2 = dPriv->pClipRects[i].x2 - dPriv->x;
+ rects[i].y2 = dPriv->pClipRects[i].y2 - dPriv->y;
+ }
+
+ driReportDamage(dPriv, rects, dPriv->numClipRects);
+ free(rects);
+}
+
+static int driDrawableGetMSC( __DRIscreen *sPriv, __DRIdrawable *dPriv,
+ int64_t *msc )
+{
+ return sPriv->DriverAPI.GetDrawableMSC(sPriv, dPriv, msc);
+}
+
+
+static int driWaitForMSC(__DRIdrawable *dPriv, int64_t target_msc,
+ int64_t divisor, int64_t remainder,
+ int64_t * msc, int64_t * sbc)
+{
+ __DRIswapInfo sInfo;
+ int status;
+
+ status = dPriv->driScreenPriv->DriverAPI.WaitForMSC( dPriv, target_msc,
+ divisor, remainder,
+ msc );
+
+ /* GetSwapInfo() may not be provided by the driver if GLX_SGI_video_sync
+ * is supported but GLX_OML_sync_control is not. Therefore, don't return
+ * an error value if GetSwapInfo() is not implemented.
+ */
+ if ( status == 0
+ && dPriv->driScreenPriv->DriverAPI.GetSwapInfo ) {
+ status = dPriv->driScreenPriv->DriverAPI.GetSwapInfo( dPriv, & sInfo );
+ *sbc = sInfo.swap_count;
+ }
+
+ return status;
+}
+
+
+const __DRImediaStreamCounterExtension driMediaStreamCounterExtension = {
+ { __DRI_MEDIA_STREAM_COUNTER, __DRI_MEDIA_STREAM_COUNTER_VERSION },
+ driWaitForMSC,
+ driDrawableGetMSC,
+};
+
+
+static void driCopySubBuffer(__DRIdrawable *dPriv,
+ int x, int y, int w, int h)
+{
+ drm_clip_rect_t rect;
+
+ rect.x1 = x;
+ rect.y1 = dPriv->h - y - h;
+ rect.x2 = x + w;
+ rect.y2 = rect.y1 + h;
+ driReportDamage(dPriv, &rect, 1);
+
+ dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);
+}
+
+const __DRIcopySubBufferExtension driCopySubBufferExtension = {
+ { __DRI_COPY_SUB_BUFFER, __DRI_COPY_SUB_BUFFER_VERSION },
+ driCopySubBuffer
+};
+
+static void driSetSwapInterval(__DRIdrawable *dPriv, unsigned int interval)
+{
+ dPriv->swap_interval = interval;
+}
+
+static unsigned int driGetSwapInterval(__DRIdrawable *dPriv)
+{
+ return dPriv->swap_interval;
+}
+
+const __DRIswapControlExtension driSwapControlExtension = {
+ { __DRI_SWAP_CONTROL, __DRI_SWAP_CONTROL_VERSION },
+ driSetSwapInterval,
+ driGetSwapInterval
+};
+
+
+/**
+ * This is called via __DRIscreenRec's createNewDrawable pointer.
+ */
+static __DRIdrawable *
+driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config,
+ drm_drawable_t hwDrawable, int renderType,
+ const int *attrs, void *data)
+{
+ __DRIdrawable *pdp;
+
+ /* Since pbuffers are not yet supported, no drawable attributes are
+ * supported either.
+ */
+ (void) attrs;
+
+ pdp = malloc(sizeof *pdp);
+ if (!pdp) {
+ return NULL;
+ }
+
+ pdp->driContextPriv = NULL;
+ pdp->loaderPrivate = data;
+ pdp->hHWDrawable = hwDrawable;
+ pdp->refcount = 1;
+ pdp->pStamp = NULL;
+ pdp->lastStamp = 0;
+ pdp->index = 0;
+ pdp->x = 0;
+ pdp->y = 0;
+ pdp->w = 0;
+ pdp->h = 0;
+ pdp->numClipRects = 0;
+ pdp->numBackClipRects = 0;
+ pdp->pClipRects = NULL;
+ pdp->pBackClipRects = NULL;
+ pdp->vblSeq = 0;
+ pdp->vblFlags = 0;
+
+ pdp->driScreenPriv = psp;
+
+ if (!(*psp->DriverAPI.CreateBuffer)(psp, pdp, &config->modes, 0)) {
+ free(pdp);
+ return NULL;
+ }
+
+ pdp->msc_base = 0;
+
+ /* This special default value is replaced with the configured
+ * default value when the drawable is first bound to a direct
+ * rendering context.
+ */
+ pdp->swap_interval = (unsigned)-1;
+
+ return pdp;
+}
+
+
+static __DRIdrawable *
+dri2CreateNewDrawable(__DRIscreen *screen,
+ const __DRIconfig *config,
+ void *loaderPrivate)
+{
+ __DRIdrawable *pdraw;
+
+ pdraw = driCreateNewDrawable(screen, config, 0, 0, NULL, loaderPrivate);
+ if (!pdraw)
+ return NULL;
+
+ pdraw->pClipRects = &pdraw->dri2.clipRect;
+ pdraw->pBackClipRects = &pdraw->dri2.clipRect;
+
+ pdraw->pStamp = &pdraw->dri2.stamp;
+ *pdraw->pStamp = pdraw->lastStamp + 1;
+
+ return pdraw;
+}
+
+static __DRIbuffer *
+dri2AllocateBuffer(__DRIscreen *screen,
+ unsigned int attachment, unsigned int format,
+ int width, int height)
+{
+ return (*screen->DriverAPI.AllocateBuffer)(screen, attachment, format,
+ width, height);
+}
+
+static void
+dri2ReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
+{
+ (*screen->DriverAPI.ReleaseBuffer)(screen, buffer);
+}
+
+
+static int
+dri2ConfigQueryb(__DRIscreen *screen, const char *var, GLboolean *val)
+{
+ if (!driCheckOption(&screen->optionCache, var, DRI_BOOL))
+ return -1;
+
+ *val = driQueryOptionb(&screen->optionCache, var);
+
+ return 0;
+}
+
+static int
+dri2ConfigQueryi(__DRIscreen *screen, const char *var, GLint *val)
+{
+ if (!driCheckOption(&screen->optionCache, var, DRI_INT) &&
+ !driCheckOption(&screen->optionCache, var, DRI_ENUM))
+ return -1;
+
+ *val = driQueryOptioni(&screen->optionCache, var);
+
+ return 0;
+}
+
+static int
+dri2ConfigQueryf(__DRIscreen *screen, const char *var, GLfloat *val)
+{
+ if (!driCheckOption(&screen->optionCache, var, DRI_FLOAT))
+ return -1;
+
+ *val = driQueryOptionf(&screen->optionCache, var);
+
+ return 0;
+}
+
+
+static void dri_get_drawable(__DRIdrawable *pdp)
+{
+ pdp->refcount++;
+}
+
+static void dri_put_drawable(__DRIdrawable *pdp)
+{
+ __DRIscreen *psp;
+
+ if (pdp) {
+ pdp->refcount--;
+ if (pdp->refcount)
+ return;
+
+ psp = pdp->driScreenPriv;
+ (*psp->DriverAPI.DestroyBuffer)(pdp);
+ if (pdp->pClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {
+ free(pdp->pClipRects);
+ pdp->pClipRects = NULL;
+ }
+ if (pdp->pBackClipRects && pdp->pClipRects != &pdp->dri2.clipRect) {
+ free(pdp->pBackClipRects);
+ pdp->pBackClipRects = NULL;
+ }
+ free(pdp);
+ }
+}
+
+static void
+driDestroyDrawable(__DRIdrawable *pdp)
+{
+ dri_put_drawable(pdp);
+}
+
+/*@}*/
+
+
+/*****************************************************************/
+/** \name Context handling functions */
+/*****************************************************************/
+/*@{*/
+
+/**
+ * Destroy the per-context private information.
+ *
+ * \internal
+ * This function calls __DriverAPIRec::DestroyContext on \p contextPrivate, calls
+ * drmDestroyContext(), and finally frees \p contextPrivate.
+ */
+static void
+driDestroyContext(__DRIcontext *pcp)
+{
+ if (pcp) {
+ (*pcp->driScreenPriv->DriverAPI.DestroyContext)(pcp);
+ free(pcp);
+ }
+}
+
+
+/**
+ * Create the per-drawable private driver information.
+ *
+ * \param render_type Type of rendering target. \c GLX_RGBA is the only
+ * type likely to ever be supported for direct-rendering.
+ * \param shared Context with which to share textures, etc. or NULL
+ *
+ * \returns An opaque pointer to the per-context private information on
+ * success, or \c NULL on failure.
+ *
+ * \internal
+ * This function allocates and fills a __DRIcontextRec structure. It
+ * performs some device independent initialization and passes all the
+ * relevent information to __DriverAPIRec::CreateContext to create the
+ * context.
+ *
+ */
+static __DRIcontext *
+driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,
+ int render_type, __DRIcontext *shared,
+ drm_context_t hwContext, void *data)
+{
+ __DRIcontext *pcp;
+ void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
+
+ pcp = malloc(sizeof *pcp);
+ if (!pcp)
+ return NULL;
+
+ pcp->driScreenPriv = psp;
+ pcp->driDrawablePriv = NULL;
+ pcp->loaderPrivate = data;
+
+ pcp->dri2.draw_stamp = 0;
+ pcp->dri2.read_stamp = 0;
+
+ pcp->hHWContext = hwContext;
+
+ if ( !(*psp->DriverAPI.CreateContext)(API_OPENGL,
+ &config->modes, pcp, shareCtx) ) {
+ free(pcp);
+ return NULL;
+ }
+
+ return pcp;
+}
+
+static unsigned int
+dri2GetAPIMask(__DRIscreen *screen)
+{
+ return screen->api_mask;
+}
+
+static __DRIcontext *
+dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared, void *data)
+{
+ __DRIcontext *context;
+ const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;
+ void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
+ gl_api mesa_api;
+
+ if (!(screen->api_mask & (1 << api)))
+ return NULL;
+
+ switch (api) {
+ case __DRI_API_OPENGL:
+ mesa_api = API_OPENGL;
+ break;
+ case __DRI_API_GLES:
+ mesa_api = API_OPENGLES;
+ break;
+ case __DRI_API_GLES2:
+ mesa_api = API_OPENGLES2;
+ break;
+ default:
+ return NULL;
+ }
+
+ context = malloc(sizeof *context);
+ if (!context)
+ return NULL;
+
+ context->driScreenPriv = screen;
+ context->driDrawablePriv = NULL;
+ context->loaderPrivate = data;
+
+ if (!(*screen->DriverAPI.CreateContext)(mesa_api, modes,
+ context, shareCtx) ) {
+ free(context);
+ return NULL;
+ }
+
+ return context;
+}
+
+
+static __DRIcontext *
+dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
+ __DRIcontext *shared, void *data)
+{
+ return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL,
+ config, shared, data);
+}
+
+static int
+driCopyContext(__DRIcontext *dest, __DRIcontext *src, unsigned long mask)
+{
+ return GL_FALSE;
+}
+
+/*@}*/
+
+
+/*****************************************************************/
+/** \name Screen handling functions */
+/*****************************************************************/
+/*@{*/
+
+/**
+ * Destroy the per-screen private information.
+ *
+ * \internal
+ * This function calls __DriverAPIRec::DestroyScreen on \p screenPrivate, calls
+ * drmClose(), and finally frees \p screenPrivate.
+ */
+static void driDestroyScreen(__DRIscreen *psp)
+{
+ if (psp) {
+ /* No interaction with the X-server is possible at this point. This
+ * routine is called after XCloseDisplay, so there is no protocol
+ * stream open to the X-server anymore.
+ */
+
+ _mesa_destroy_shader_compiler();
+
+ if (psp->DriverAPI.DestroyScreen)
+ (*psp->DriverAPI.DestroyScreen)(psp);
+
+ if (!psp->dri2.enabled) {
+ (void)drmUnmap((drmAddress)psp->pSAREA, SAREA_MAX);
+ (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);
+ (void)drmCloseOnce(psp->fd);
+ } else {
+ driDestroyOptionCache(&psp->optionCache);
+ driDestroyOptionInfo(&psp->optionInfo);
+ }
+
+ free(psp);
+ }
+}
+
+static void
+setupLoaderExtensions(__DRIscreen *psp,
+ const __DRIextension **extensions)
+{
+ int i;
+
+ for (i = 0; extensions[i]; i++) {
+ if (strcmp(extensions[i]->name, __DRI_GET_DRAWABLE_INFO) == 0)
+ psp->getDrawableInfo = (__DRIgetDrawableInfoExtension *) extensions[i];
+ if (strcmp(extensions[i]->name, __DRI_DAMAGE) == 0)
+ psp->damage = (__DRIdamageExtension *) extensions[i];
+ if (strcmp(extensions[i]->name, __DRI_SYSTEM_TIME) == 0)
+ psp->systemTime = (__DRIsystemTimeExtension *) extensions[i];
+ if (strcmp(extensions[i]->name, __DRI_DRI2_LOADER) == 0)
+ psp->dri2.loader = (__DRIdri2LoaderExtension *) extensions[i];
+ if (strcmp(extensions[i]->name, __DRI_IMAGE_LOOKUP) == 0)
+ psp->dri2.image = (__DRIimageLookupExtension *) extensions[i];
+ if (strcmp(extensions[i]->name, __DRI_USE_INVALIDATE) == 0)
+ psp->dri2.useInvalidate = (__DRIuseInvalidateExtension *) extensions[i];
+ }
+}
+
+/**
+ * This is the bootstrap function for the driver. libGL supplies all of the
+ * requisite information about the system, and the driver initializes itself.
+ * This routine also fills in the linked list pointed to by \c driver_modes
+ * with the \c struct gl_config that the driver can support for windows or
+ * pbuffers.
+ *
+ * For legacy DRI.
+ *
+ * \param scrn Index of the screen
+ * \param ddx_version Version of the 2D DDX. This may not be meaningful for
+ * all drivers.
+ * \param dri_version Version of the "server-side" DRI.
+ * \param drm_version Version of the kernel DRM.
+ * \param frame_buffer Data describing the location and layout of the
+ * framebuffer.
+ * \param pSAREA Pointer to the SAREA.
+ * \param fd Device handle for the DRM.
+ * \param extensions ??
+ * \param driver_modes Returns modes suppoted by the driver
+ * \param loaderPrivate ??
+ *
+ * \note There is no need to check the minimum API version in this
+ * function. Since the name of this function is versioned, it is
+ * impossible for a loader that is too old to even load this driver.
+ */
+static __DRIscreen *
+driCreateNewScreen(int scrn,
+ const __DRIversion *ddx_version,
+ const __DRIversion *dri_version,
+ const __DRIversion *drm_version,
+ const __DRIframebuffer *frame_buffer,
+ drmAddress pSAREA, int fd,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driver_modes,
+ void *loaderPrivate)
+{
+ static const __DRIextension *emptyExtensionList[] = { NULL };
+ __DRIscreen *psp;
+
+ if (driDriverAPI.InitScreen == NULL)
+ return NULL;
+
+ psp = calloc(1, sizeof *psp);
+ if (!psp)
+ return NULL;
+
+ setupLoaderExtensions(psp, extensions);
+
+ /*
+ ** NOT_DONE: This is used by the X server to detect when the client
+ ** has died while holding the drawable lock. The client sets the
+ ** drawable lock to this value.
+ */
+ psp->drawLockID = 1;
+
+ psp->drm_version = *drm_version;
+ psp->ddx_version = *ddx_version;
+ psp->dri_version = *dri_version;
+
+ psp->pSAREA = pSAREA;
+ psp->lock = (drmLock *) &psp->pSAREA->lock;
+
+ psp->pFB = frame_buffer->base;
+ psp->fbSize = frame_buffer->size;
+ psp->fbStride = frame_buffer->stride;
+ psp->fbWidth = frame_buffer->width;
+ psp->fbHeight = frame_buffer->height;
+ psp->devPrivSize = frame_buffer->dev_priv_size;
+ psp->pDevPriv = frame_buffer->dev_priv;
+ psp->fbBPP = psp->fbStride * 8 / frame_buffer->width;
+
+ psp->extensions = emptyExtensionList;
+ psp->fd = fd;
+ psp->myNum = scrn;
+ psp->dri2.enabled = GL_FALSE;
+
+ psp->DriverAPI = driDriverAPI;
+ psp->api_mask = (1 << __DRI_API_OPENGL);
+
+ *driver_modes = driDriverAPI.InitScreen(psp);
+ if (*driver_modes == NULL) {
+ free(psp);
+ return NULL;
+ }
+
+ return psp;
+}
+
+/**
+ * DRI2
+ */
+static __DRIscreen *
+dri2CreateNewScreen(int scrn, int fd,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs, void *data)
+{
+ static const __DRIextension *emptyExtensionList[] = { NULL };
+ __DRIscreen *psp;
+ drmVersionPtr version;
+
+ if (driDriverAPI.InitScreen2 == NULL)
+ return NULL;
+
+ psp = calloc(1, sizeof(*psp));
+ if (!psp)
+ return NULL;
+
+ setupLoaderExtensions(psp, extensions);
+
+ version = drmGetVersion(fd);
+ if (version) {
+ psp->drm_version.major = version->version_major;
+ psp->drm_version.minor = version->version_minor;
+ psp->drm_version.patch = version->version_patchlevel;
+ drmFreeVersion(version);
+ }
+
+ psp->extensions = emptyExtensionList;
+ psp->fd = fd;
+ psp->myNum = scrn;
+ psp->dri2.enabled = GL_TRUE;
+
+ psp->DriverAPI = driDriverAPI;
+ psp->api_mask = (1 << __DRI_API_OPENGL);
+ *driver_configs = driDriverAPI.InitScreen2(psp);
+ if (*driver_configs == NULL) {
+ free(psp);
+ return NULL;
+ }
+
+ psp->DriverAPI = driDriverAPI;
+ psp->loaderPrivate = data;
+
+ driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions,
+ __dri2NConfigOptions);
+ driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum,
+ "dri2");
+
+ return psp;
+}
+
+static const __DRIextension **driGetExtensions(__DRIscreen *psp)
+{
+ return psp->extensions;
+}
+
+/** Core interface */
+const __DRIcoreExtension driCoreExtension = {
+ { __DRI_CORE, __DRI_CORE_VERSION },
+ NULL,
+ driDestroyScreen,
+ driGetExtensions,
+ driGetConfigAttrib,
+ driIndexConfigAttrib,
+ NULL,
+ driDestroyDrawable,
+ driSwapBuffers,
+ NULL,
+ driCopyContext,
+ driDestroyContext,
+ driBindContext,
+ driUnbindContext
+};
+
+/** Legacy DRI interface */
+const __DRIlegacyExtension driLegacyExtension = {
+ { __DRI_LEGACY, __DRI_LEGACY_VERSION },
+ driCreateNewScreen,
+ driCreateNewDrawable,
+ driCreateNewContext,
+};
+
+/** DRI2 interface */
+const __DRIdri2Extension driDRI2Extension = {
+ { __DRI_DRI2, __DRI_DRI2_VERSION },
+ dri2CreateNewScreen,
+ dri2CreateNewDrawable,
+ dri2CreateNewContext,
+ dri2GetAPIMask,
+ dri2CreateNewContextForAPI,
+ dri2AllocateBuffer,
+ dri2ReleaseBuffer
+};
+
+const __DRI2configQueryExtension dri2ConfigQueryExtension = {
+ { __DRI2_CONFIG_QUERY, __DRI2_CONFIG_QUERY_VERSION },
+ dri2ConfigQueryb,
+ dri2ConfigQueryi,
+ dri2ConfigQueryf,
+};
+
+/**
+ * Calculate amount of swap interval used between GLX buffer swaps.
+ *
+ * The usage value, on the range [0,max], is the fraction of total swap
+ * interval time used between GLX buffer swaps is calculated.
+ *
+ * \f$p = t_d / (i * t_r)\f$
+ *
+ * Where \f$t_d\f$ is the time since the last GLX buffer swap, \f$i\f$ is the
+ * swap interval (as set by \c glXSwapIntervalSGI), and \f$t_r\f$ time
+ * required for a single vertical refresh period (as returned by \c
+ * glXGetMscRateOML).
+ *
+ * See the documentation for the GLX_MESA_swap_frame_usage extension for more
+ * details.
+ *
+ * \param dPriv Pointer to the private drawable structure.
+ * \return If less than a single swap interval time period was required
+ * between GLX buffer swaps, a number greater than 0 and less than
+ * 1.0 is returned. If exactly one swap interval time period is
+ * required, 1.0 is returned, and if more than one is required then
+ * a number greater than 1.0 will be returned.
+ *
+ * \sa glXSwapIntervalSGI glXGetMscRateOML
+ *
+ * \todo Instead of caching the \c glXGetMscRateOML function pointer, would it
+ * be possible to cache the sync rate?
+ */
+float
+driCalculateSwapUsage( __DRIdrawable *dPriv, int64_t last_swap_ust,
+ int64_t current_ust )
+{
+ int32_t n;
+ int32_t d;
+ int interval;
+ float usage = 1.0;
+ __DRIscreen *psp = dPriv->driScreenPriv;
+
+ if ( (*psp->systemTime->getMSCRate)(dPriv, &n, &d, dPriv->loaderPrivate) ) {
+ interval = (dPriv->swap_interval != 0) ? dPriv->swap_interval : 1;
+
+
+ /* We want to calculate
+ * (current_UST - last_swap_UST) / (interval * us_per_refresh). We get
+ * current_UST by calling __glXGetUST. last_swap_UST is stored in
+ * dPriv->swap_ust. interval has already been calculated.
+ *
+ * The only tricky part is us_per_refresh. us_per_refresh is
+ * 1000000 / MSC_rate. We know the MSC_rate is n / d. We can flip it
+ * around and say us_per_refresh = 1000000 * d / n. Since this goes in
+ * the denominator of the final calculation, we calculate
+ * (interval * 1000000 * d) and move n into the numerator.
+ */
+
+ usage = (current_ust - last_swap_ust);
+ usage *= n;
+ usage /= (interval * d);
+ usage /= 1000000.0;
+ }
+
+ return usage;
+}
+
+void
+dri2InvalidateDrawable(__DRIdrawable *drawable)
+{
+ drawable->dri2.stamp++;
+}
+
+/*@}*/
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.h b/mesalib/src/mesa/drivers/dri/common/dri_util.h
index b6f04993e..3d3d5c9cd 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.h
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.h
@@ -1,557 +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);
-};
-
-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/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index 144b187c1..719b406ec 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -651,7 +651,7 @@ dri_create_context(gl_api api,
mesaCtx = &ctx->Base;
/* basic context setup */
- if (!_mesa_initialize_context_for_api(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {
+ if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {
goto context_fail;
}
diff --git a/mesalib/src/mesa/drivers/windows/gdi/wmesa.c b/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
index a30326c0c..4a8b1b283 100644
--- a/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
+++ b/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
@@ -1,1661 +1,1662 @@
-/*
- * Windows (Win32/Win64) device driver for Mesa
- *
- */
-
-#include "wmesadef.h"
-#include "colors.h"
-#include <GL/wmesa.h>
-#include <winuser.h>
-#include "context.h"
-#include "extensions.h"
-#include "framebuffer.h"
-#include "renderbuffer.h"
-#include "drivers/common/driverfuncs.h"
-#include "drivers/common/meta.h"
-#include "vbo/vbo.h"
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
-
-
-/* linked list of our Framebuffers (windows) */
-static WMesaFramebuffer FirstFramebuffer = NULL;
-
-
-/**
- * Create a new WMesaFramebuffer object which will correspond to the
- * given HDC (Window handle).
- */
-WMesaFramebuffer
-wmesa_new_framebuffer(HDC hdc, struct gl_config *visual)
-{
- WMesaFramebuffer pwfb
- = (WMesaFramebuffer) malloc(sizeof(struct wmesa_framebuffer));
- if (pwfb) {
- _mesa_initialize_window_framebuffer(&pwfb->Base, visual);
- pwfb->hDC = hdc;
- /* insert at head of list */
- pwfb->next = FirstFramebuffer;
- FirstFramebuffer = pwfb;
- }
- return pwfb;
-}
-
-/**
- * Given an hdc, free the corresponding WMesaFramebuffer
- */
-void
-wmesa_free_framebuffer(HDC hdc)
-{
- WMesaFramebuffer pwfb, prev;
- for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {
- if (pwfb->hDC == hdc)
- break;
- prev = pwfb;
- }
- if (pwfb) {
- struct gl_framebuffer *fb;
- if (pwfb == FirstFramebuffer)
- FirstFramebuffer = pwfb->next;
- else
- prev->next = pwfb->next;
- fb = &pwfb->Base;
- _mesa_reference_framebuffer(&fb, NULL);
- }
-}
-
-/**
- * Given an hdc, return the corresponding WMesaFramebuffer
- */
-WMesaFramebuffer
-wmesa_lookup_framebuffer(HDC hdc)
-{
- WMesaFramebuffer pwfb;
- for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {
- if (pwfb->hDC == hdc)
- return pwfb;
- }
- return NULL;
-}
-
-
-/**
- * Given a struct gl_framebuffer, return the corresponding WMesaFramebuffer.
- */
-static WMesaFramebuffer wmesa_framebuffer(struct gl_framebuffer *fb)
-{
- return (WMesaFramebuffer) fb;
-}
-
-
-/**
- * Given a struct gl_context, return the corresponding WMesaContext.
- */
-static WMesaContext wmesa_context(const struct gl_context *ctx)
-{
- return (WMesaContext) ctx;
-}
-
-
-/*
- * Every driver should implement a GetString function in order to
- * return a meaningful GL_RENDERER string.
- */
-static const GLubyte *wmesa_get_string(struct gl_context *ctx, GLenum name)
-{
- return (name == GL_RENDERER) ?
- (GLubyte *) "Mesa Windows GDI Driver" : NULL;
-}
-
-
-/*
- * Determine the pixel format based on the pixel size.
- */
-static void wmSetPixelFormat(WMesaFramebuffer pwfb, HDC hDC)
-{
- pwfb->cColorBits = GetDeviceCaps(hDC, BITSPIXEL);
-
- /* Only 16 and 32 bit targets are supported now */
- assert(pwfb->cColorBits == 0 ||
- pwfb->cColorBits == 16 ||
- pwfb->cColorBits == 24 ||
- pwfb->cColorBits == 32);
-
- switch(pwfb->cColorBits){
- case 8:
- pwfb->pixelformat = PF_INDEX8;
- break;
- case 16:
- pwfb->pixelformat = PF_5R6G5B;
- break;
- case 24:
- case 32:
- pwfb->pixelformat = PF_8R8G8B;
- break;
- default:
- pwfb->pixelformat = PF_BADFORMAT;
- }
-}
-
-
-/**
- * Create DIB for back buffer.
- * We write into this memory with the span routines and then blit it
- * to the window on a buffer swap.
- */
-BOOL wmCreateBackingStore(WMesaFramebuffer pwfb, long lxSize, long lySize)
-{
- HDC hdc = pwfb->hDC;
- LPBITMAPINFO pbmi = &(pwfb->bmi);
- HDC hic;
-
- pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
- pbmi->bmiHeader.biWidth = lxSize;
- pbmi->bmiHeader.biHeight= -lySize;
- pbmi->bmiHeader.biPlanes = 1;
- pbmi->bmiHeader.biBitCount = GetDeviceCaps(pwfb->hDC, BITSPIXEL);
- pbmi->bmiHeader.biCompression = BI_RGB;
- pbmi->bmiHeader.biSizeImage = 0;
- pbmi->bmiHeader.biXPelsPerMeter = 0;
- pbmi->bmiHeader.biYPelsPerMeter = 0;
- pbmi->bmiHeader.biClrUsed = 0;
- pbmi->bmiHeader.biClrImportant = 0;
-
- pwfb->cColorBits = pbmi->bmiHeader.biBitCount;
- pwfb->ScanWidth = (lxSize * (pwfb->cColorBits / 8) + 3) & ~3;
-
- hic = CreateIC("display", NULL, NULL, NULL);
- pwfb->dib_hDC = CreateCompatibleDC(hic);
-
- pwfb->hbmDIB = CreateDIBSection(hic,
- &pwfb->bmi,
- DIB_RGB_COLORS,
- (void **)&(pwfb->pbPixels),
- 0,
- 0);
- pwfb->hOldBitmap = SelectObject(pwfb->dib_hDC, pwfb->hbmDIB);
-
- DeleteDC(hic);
-
- wmSetPixelFormat(pwfb, pwfb->hDC);
- return TRUE;
-}
-
-
-static wmDeleteBackingStore(WMesaFramebuffer pwfb)
-{
- if (pwfb->hbmDIB) {
- SelectObject(pwfb->dib_hDC, pwfb->hOldBitmap);
- DeleteDC(pwfb->dib_hDC);
- DeleteObject(pwfb->hbmDIB);
- }
-}
-
-
-/**
- * Find the width and height of the window named by hdc.
- */
-static void
-get_window_size(HDC hdc, GLuint *width, GLuint *height)
-{
- if (WindowFromDC(hdc)) {
- RECT rect;
- GetClientRect(WindowFromDC(hdc), &rect);
- *width = rect.right - rect.left;
- *height = rect.bottom - rect.top;
- }
- else { /* Memory context */
- /* From contributed code - use the size of the desktop
- * for the size of a memory context (?) */
- *width = GetDeviceCaps(hdc, HORZRES);
- *height = GetDeviceCaps(hdc, VERTRES);
- }
-}
-
-
-static void
-wmesa_get_buffer_size(struct gl_framebuffer *buffer, GLuint *width, GLuint *height)
-{
- WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);
- get_window_size(pwfb->hDC, width, height);
-}
-
-
-static void wmesa_flush(struct gl_context *ctx)
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->WinSysDrawBuffer);
-
- if (ctx->Visual.doubleBufferMode == 1) {
- BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,
- pwfb->dib_hDC, 0, 0, SRCCOPY);
- }
- else {
- /* Do nothing for single buffer */
- }
-}
-
-
-/**********************************************************************/
-/***** CLEAR Functions *****/
-/**********************************************************************/
-
-/* If we do not implement these, Mesa clears the buffers via the pixel
- * span writing interface, which is very slow for a clear operation.
- */
-
-/*
- * Set the color used to clear the color buffer.
- */
-static void clear_color(struct gl_context *ctx, const GLfloat color[4])
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLubyte col[3];
- UINT bytesPerPixel = pwfb->cColorBits / 8;
-
- CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
- CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
- CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
- pwc->clearColorRef = RGB(col[0], col[1], col[2]);
- DeleteObject(pwc->clearPen);
- DeleteObject(pwc->clearBrush);
- pwc->clearPen = CreatePen(PS_SOLID, 1, pwc->clearColorRef);
- pwc->clearBrush = CreateSolidBrush(pwc->clearColorRef);
-}
-
-
-/*
- * Clear the specified region of the color buffer using the clear color
- * or index as specified by one of the two functions above.
- *
- * This procedure clears either the front and/or the back COLOR buffers.
- * Only the "left" buffer is cleared since we are not stereo.
- * Clearing of the other non-color buffers is left to the swrast.
- */
-
-static void clear(struct gl_context *ctx, GLbitfield mask)
-{
-#define FLIP(Y) (ctx->DrawBuffer->Height - (Y) - 1)
- const GLint x = ctx->DrawBuffer->_Xmin;
- const GLint y = ctx->DrawBuffer->_Ymin;
- const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
- const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
-
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- int done = 0;
-
- /* Let swrast do all the work if the masks are not set to
- * clear all channels. */
- if (!ctx->Color.ColorMask[0][0] ||
- !ctx->Color.ColorMask[0][1] ||
- !ctx->Color.ColorMask[0][2] ||
- !ctx->Color.ColorMask[0][3]) {
- _swrast_Clear(ctx, mask);
- return;
- }
-
- /* Back buffer */
- if (mask & BUFFER_BIT_BACK_LEFT) {
-
- int i, rowSize;
- UINT bytesPerPixel = pwfb->cColorBits / 8;
- LPBYTE lpb, clearRow;
- LPWORD lpw;
- BYTE bColor;
- WORD wColor;
- BYTE r, g, b;
- DWORD dwColor;
- LPDWORD lpdw;
-
- /* Try for a fast clear - clearing entire buffer with a single
- * byte value. */
- if (width == ctx->DrawBuffer->Width &&
- height == ctx->DrawBuffer->Height) { /* entire buffer */
- /* Now check for an easy clear value */
- switch (bytesPerPixel) {
- case 1:
- bColor = BGR8(GetRValue(pwc->clearColorRef),
- GetGValue(pwc->clearColorRef),
- GetBValue(pwc->clearColorRef));
- memset(pwfb->pbPixels, bColor,
- pwfb->ScanWidth * height);
- done = 1;
- break;
- case 2:
- wColor = BGR16(GetRValue(pwc->clearColorRef),
- GetGValue(pwc->clearColorRef),
- GetBValue(pwc->clearColorRef));
- if (((wColor >> 8) & 0xff) == (wColor & 0xff)) {
- memset(pwfb->pbPixels, wColor & 0xff,
- pwfb->ScanWidth * height);
- done = 1;
- }
- break;
- case 3:
- /* fall through */
- case 4:
- if (GetRValue(pwc->clearColorRef) ==
- GetGValue(pwc->clearColorRef) &&
- GetRValue(pwc->clearColorRef) ==
- GetBValue(pwc->clearColorRef)) {
- memset(pwfb->pbPixels,
- GetRValue(pwc->clearColorRef),
- pwfb->ScanWidth * height);
- done = 1;
- }
- break;
- default:
- break;
- }
- } /* all */
-
- if (!done) {
- /* Need to clear a row at a time. Begin by setting the first
- * row in the area to be cleared to the clear color. */
-
- clearRow = pwfb->pbPixels +
- pwfb->ScanWidth * FLIP(y) +
- bytesPerPixel * x;
- switch (bytesPerPixel) {
- case 1:
- lpb = clearRow;
- bColor = BGR8(GetRValue(pwc->clearColorRef),
- GetGValue(pwc->clearColorRef),
- GetBValue(pwc->clearColorRef));
- memset(lpb, bColor, width);
- break;
- case 2:
- lpw = (LPWORD)clearRow;
- wColor = BGR16(GetRValue(pwc->clearColorRef),
- GetGValue(pwc->clearColorRef),
- GetBValue(pwc->clearColorRef));
- for (i=0; i<width; i++)
- *lpw++ = wColor;
- break;
- case 3:
- lpb = clearRow;
- r = GetRValue(pwc->clearColorRef);
- g = GetGValue(pwc->clearColorRef);
- b = GetBValue(pwc->clearColorRef);
- for (i=0; i<width; i++) {
- *lpb++ = b;
- *lpb++ = g;
- *lpb++ = r;
- }
- break;
- case 4:
- lpdw = (LPDWORD)clearRow;
- dwColor = BGR32(GetRValue(pwc->clearColorRef),
- GetGValue(pwc->clearColorRef),
- GetBValue(pwc->clearColorRef));
- for (i=0; i<width; i++)
- *lpdw++ = dwColor;
- break;
- default:
- break;
- } /* switch */
-
- /* copy cleared row to other rows in buffer */
- lpb = clearRow - pwfb->ScanWidth;
- rowSize = width * bytesPerPixel;
- for (i=1; i<height; i++) {
- memcpy(lpb, clearRow, rowSize);
- lpb -= pwfb->ScanWidth;
- }
- } /* not done */
- mask &= ~BUFFER_BIT_BACK_LEFT;
- } /* back buffer */
-
- /* front buffer */
- if (mask & BUFFER_BIT_FRONT_LEFT) {
- HDC DC = pwc->hDC;
- HPEN Old_Pen = SelectObject(DC, pwc->clearPen);
- HBRUSH Old_Brush = SelectObject(DC, pwc->clearBrush);
- Rectangle(DC,
- x,
- FLIP(y) + 1,
- x + width + 1,
- FLIP(y) - height + 1);
- SelectObject(DC, Old_Pen);
- SelectObject(DC, Old_Brush);
- mask &= ~BUFFER_BIT_FRONT_LEFT;
- } /* front buffer */
-
- /* Call swrast if there is anything left to clear (like DEPTH) */
- if (mask)
- _swrast_Clear(ctx, mask);
-
-#undef FLIP
-}
-
-
-/**********************************************************************/
-/***** PIXEL Functions *****/
-/**********************************************************************/
-
-#define FLIP(Y) (rb->Height - (Y) - 1)
-
-
-/**
- ** Front Buffer reading/writing
- ** These are slow, but work with all non-indexed visual types.
- **/
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(pwc->hDC);
- CONST BITMAPINFO bmi=
- {
- {
- sizeof(BITMAPINFOHEADER),
- n, 1, 1, 32, BI_RGB, 0, 1, 1, 0, 0
- }
- };
- HBITMAP bmp=0;
- HDC mdc=0;
- typedef union
- {
- unsigned i;
- struct {
- unsigned b:8, g:8, r:8, a:8;
- };
- } BGRA;
- BGRA *bgra, c;
- GLuint i;
-
- if (n < 16) { // the value 16 is just guessed
- y=FLIP(y);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- SetPixel(pwc->hDC, x+i, y,
- RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
- }
- else {
- for (i=0; i<n; i++)
- SetPixel(pwc->hDC, x+i, y,
- RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
- }
- }
- else {
- if (!pwfb) {
- _mesa_problem(NULL, "wmesa: write_rgba_span_front on unknown hdc");
- return;
- }
- bgra=malloc(n*sizeof(BGRA));
- if (!bgra) {
- _mesa_problem(NULL, "wmesa: write_rgba_span_front: out of memory");
- return;
- }
- c.a=0;
- if (mask) {
- for (i=0; i<n; i++) {
- if (mask[i]) {
- c.r=rgba[i][RCOMP];
- c.g=rgba[i][GCOMP];
- c.b=rgba[i][BCOMP];
- c.a=rgba[i][ACOMP];
- bgra[i]=c;
- }
- else
- bgra[i].i=0;
- }
- }
- else {
- for (i=0; i<n; i++) {
- c.r=rgba[i][RCOMP];
- c.g=rgba[i][GCOMP];
- c.b=rgba[i][BCOMP];
- c.a=rgba[i][ACOMP];
- bgra[i]=c;
- }
- }
- bmp=CreateBitmap(n, 1, 1, 32, bgra);
- mdc=CreateCompatibleDC(pwfb->hDC);
- SelectObject(mdc, bmp);
- y=FLIP(y);
- BitBlt(pwfb->hDC, x, y, n, 1, mdc, 0, 0, SRCCOPY);
- SelectObject(mdc, 0);
- DeleteObject(bmp);
- DeleteDC(mdc);
- free(bgra);
- }
-}
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- GLuint i;
-
- (void) ctx;
- y=FLIP(y);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP],
- rgb[i][BCOMP]));
- }
- else {
- for (i=0; i<n; i++)
- SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP],
- rgb[i][BCOMP]));
- }
-
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLchan color[4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- COLORREF colorref;
-
- (void) ctx;
- colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
- y=FLIP(y);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- SetPixel(pwc->hDC, x+i, y, colorref);
- }
- else
- for (i=0; i<n; i++)
- SetPixel(pwc->hDC, x+i, y, colorref);
-
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n,
- const GLint x[], const GLint y[],
- const GLubyte rgba[][4],
- const GLubyte mask[] )
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- (void) ctx;
- for (i=0; i<n; i++)
- if (mask[i])
- SetPixel(pwc->hDC, x[i], FLIP(y[i]),
- RGB(rgba[i][RCOMP], rgba[i][GCOMP],
- rgba[i][BCOMP]));
-}
-
-
-
-/*
- * Write an array of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n,
- const GLint x[], const GLint y[],
- const GLchan color[4],
- const GLubyte mask[] )
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- COLORREF colorref;
- (void) ctx;
- colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
- for (i=0; i<n; i++)
- if (mask[i])
- SetPixel(pwc->hDC, x[i], FLIP(y[i]), colorref);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- GLubyte rgba[][4] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- GLuint i;
- COLORREF Color;
- y = FLIP(y);
- for (i=0; i<n; i++) {
- Color = GetPixel(pwc->hDC, x+i, y);
- rgba[i][RCOMP] = GetRValue(Color);
- rgba[i][GCOMP] = GetGValue(Color);
- rgba[i][BCOMP] = GetBValue(Color);
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_front(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4])
-{
- WMesaContext pwc = wmesa_context(ctx);
- GLuint i;
- COLORREF Color;
- for (i=0; i<n; i++) {
- GLint y2 = FLIP(y[i]);
- Color = GetPixel(pwc->hDC, x[i], y2);
- rgba[i][RCOMP] = GetRValue(Color);
- rgba[i][GCOMP] = GetGValue(Color);
- rgba[i][BCOMP] = GetBValue(Color);
- rgba[i][ACOMP] = 255;
- }
-}
-
-/*********************************************************************/
-
-/* DOUBLE BUFFER 32-bit */
-
-#define WMSETPIXEL32(pwc, y, x, r, g, b) { \
-LPDWORD lpdw = ((LPDWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \
-*lpdw = BGR32((r),(g),(b)); }
-
-
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLuint i;
- LPDWORD lpdw;
-
- (void) ctx;
-
- y=FLIP(y);
- lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- lpdw[i] = BGR32(rgba[i][RCOMP], rgba[i][GCOMP],
- rgba[i][BCOMP]);
- }
- else {
- for (i=0; i<n; i++)
- *lpdw++ = BGR32(rgba[i][RCOMP], rgba[i][GCOMP],
- rgba[i][BCOMP]);
- }
-}
-
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLuint i;
- LPDWORD lpdw;
-
- (void) ctx;
-
- y=FLIP(y);
- lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- lpdw[i] = BGR32(rgb[i][RCOMP], rgb[i][GCOMP],
- rgb[i][BCOMP]);
- }
- else {
- for (i=0; i<n; i++)
- *lpdw++ = BGR32(rgb[i][RCOMP], rgb[i][GCOMP],
- rgb[i][BCOMP]);
- }
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLchan color[4],
- const GLubyte mask[])
-{
- LPDWORD lpdw;
- DWORD pixel;
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- y=FLIP(y);
- pixel = BGR32(color[RCOMP], color[GCOMP], color[BCOMP]);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- lpdw[i] = pixel;
- }
- else
- for (i=0; i<n; i++)
- *lpdw++ = pixel;
-
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte rgba[][4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- for (i=0; i<n; i++)
- if (mask[i])
- WMSETPIXEL32(pwfb, FLIP(y[i]), x[i],
- rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
-}
-
-/*
- * Write an array of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n,
- const GLint x[], const GLint y[],
- const GLchan color[4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- for (i=0; i<n; i++)
- if (mask[i])
- WMSETPIXEL32(pwfb, FLIP(y[i]),x[i],color[RCOMP],
- color[GCOMP], color[BCOMP]);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- GLubyte rgba[][4] )
-{
- GLuint i;
- DWORD pixel;
- LPDWORD lpdw;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
- y = FLIP(y);
- lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- for (i=0; i<n; i++) {
- pixel = lpdw[i];
- rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);
- rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);
- rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_32(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4])
-{
- GLuint i;
- DWORD pixel;
- LPDWORD lpdw;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
- for (i=0; i<n; i++) {
- GLint y2 = FLIP(y[i]);
- lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];
- pixel = *lpdw;
- rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);
- rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);
- rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-/*********************************************************************/
-
-/* DOUBLE BUFFER 24-bit */
-
-#define WMSETPIXEL24(pwc, y, x, r, g, b) { \
-LPBYTE lpb = ((LPBYTE)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (3 * x)); \
-lpb[0] = (b); \
-lpb[1] = (g); \
-lpb[2] = (r); }
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLuint i;
- LPBYTE lpb;
-
- (void) ctx;
-
- y=FLIP(y);
- lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i]) {
- lpb[3*i] = rgba[i][BCOMP];
- lpb[3*i+1] = rgba[i][GCOMP];
- lpb[3*i+2] = rgba[i][RCOMP];
- }
- }
- else {
- for (i=0; i<n; i++) {
- *lpb++ = rgba[i][BCOMP];
- *lpb++ = rgba[i][GCOMP];
- *lpb++ = rgba[i][RCOMP];
- }
- }
-}
-
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLuint i;
- LPBYTE lpb;
-
- (void) ctx;
-
- y=FLIP(y);
- lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i]) {
- lpb[3*i] = rgb[i][BCOMP];
- lpb[3*i+1] = rgb[i][GCOMP];
- lpb[3*i+2] = rgb[i][RCOMP];
- }
- }
- else {
- for (i=0; i<n; i++) {
- *lpb++ = rgb[i][BCOMP];
- *lpb++ = rgb[i][GCOMP];
- *lpb++ = rgb[i][RCOMP];
- }
- }
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLchan color[4],
- const GLubyte mask[])
-{
- LPBYTE lpb;
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
- y=FLIP(y);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i]) {
- lpb[3*i] = color[BCOMP];
- lpb[3*i+1] = color[GCOMP];
- lpb[3*i+2] = color[RCOMP];
- }
- }
- else
- for (i=0; i<n; i++) {
- *lpb++ = color[BCOMP];
- *lpb++ = color[GCOMP];
- *lpb++ = color[RCOMP];
- }
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte rgba[][4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- for (i=0; i<n; i++)
- if (mask[i])
- WMSETPIXEL24(pwfb, FLIP(y[i]), x[i],
- rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
-}
-
-/*
- * Write an array of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n,
- const GLint x[], const GLint y[],
- const GLchan color[4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- for (i=0; i<n; i++)
- if (mask[i])
- WMSETPIXEL24(pwfb, FLIP(y[i]),x[i],color[RCOMP],
- color[GCOMP], color[BCOMP]);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- GLubyte rgba[][4] )
-{
- GLuint i;
- LPBYTE lpb;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
- y = FLIP(y);
- lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
- for (i=0; i<n; i++) {
- rgba[i][RCOMP] = lpb[3*i+2];
- rgba[i][GCOMP] = lpb[3*i+1];
- rgba[i][BCOMP] = lpb[3*i];
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_24(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4])
-{
- GLuint i;
- LPBYTE lpb;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
- for (i=0; i<n; i++) {
- GLint y2 = FLIP(y[i]);
- lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + (3 * x[i]);
- rgba[i][RCOMP] = lpb[3*i+2];
- rgba[i][GCOMP] = lpb[3*i+1];
- rgba[i][BCOMP] = lpb[3*i];
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-/*********************************************************************/
-
-/* DOUBLE BUFFER 16-bit */
-
-#define WMSETPIXEL16(pwc, y, x, r, g, b) { \
-LPWORD lpw = ((LPWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \
-*lpw = BGR16((r),(g),(b)); }
-
-
-
-/* Write a horizontal span of RGBA color pixels with a boolean mask. */
-static void write_rgba_span_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLuint i;
- LPWORD lpw;
-
- (void) ctx;
-
- y=FLIP(y);
- lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- lpw[i] = BGR16(rgba[i][RCOMP], rgba[i][GCOMP],
- rgba[i][BCOMP]);
- }
- else {
- for (i=0; i<n; i++)
- *lpw++ = BGR16(rgba[i][RCOMP], rgba[i][GCOMP],
- rgba[i][BCOMP]);
- }
-}
-
-
-/* Write a horizontal span of RGB color pixels with a boolean mask. */
-static void write_rgb_span_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3],
- const GLubyte mask[] )
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- GLuint i;
- LPWORD lpw;
-
- (void) ctx;
-
- y=FLIP(y);
- lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- lpw[i] = BGR16(rgb[i][RCOMP], rgb[i][GCOMP],
- rgb[i][BCOMP]);
- }
- else {
- for (i=0; i<n; i++)
- *lpw++ = BGR16(rgb[i][RCOMP], rgb[i][GCOMP],
- rgb[i][BCOMP]);
- }
-}
-
-/*
- * Write a horizontal span of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_span_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- const GLchan color[4],
- const GLubyte mask[])
-{
- LPWORD lpw;
- WORD pixel;
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- (void) ctx;
- lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- y=FLIP(y);
- pixel = BGR16(color[RCOMP], color[GCOMP], color[BCOMP]);
- if (mask) {
- for (i=0; i<n; i++)
- if (mask[i])
- lpw[i] = pixel;
- }
- else
- for (i=0; i<n; i++)
- *lpw++ = pixel;
-
-}
-
-/* Write an array of RGBA pixels with a boolean mask. */
-static void write_rgba_pixels_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte rgba[][4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- (void) ctx;
- for (i=0; i<n; i++)
- if (mask[i])
- WMSETPIXEL16(pwfb, FLIP(y[i]), x[i],
- rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
-}
-
-/*
- * Write an array of pixels with a boolean mask. The current color
- * is used for all pixels.
- */
-static void write_mono_rgba_pixels_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n,
- const GLint x[], const GLint y[],
- const GLchan color[4],
- const GLubyte mask[])
-{
- GLuint i;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
- (void) ctx;
- for (i=0; i<n; i++)
- if (mask[i])
- WMSETPIXEL16(pwfb, FLIP(y[i]),x[i],color[RCOMP],
- color[GCOMP], color[BCOMP]);
-}
-
-/* Read a horizontal span of color pixels. */
-static void read_rgba_span_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y,
- GLubyte rgba[][4] )
-{
- GLuint i, pixel;
- LPWORD lpw;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
- y = FLIP(y);
- lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
- for (i=0; i<n; i++) {
- pixel = lpw[i];
- /* Windows uses 5,5,5 for 16-bit */
- rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;
- rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;
- rgba[i][BCOMP] = (pixel & 0x001f) << 3;
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-/* Read an array of color pixels. */
-static void read_rgba_pixels_16(const struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4])
-{
- GLuint i, pixel;
- LPWORD lpw;
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
-
- for (i=0; i<n; i++) {
- GLint y2 = FLIP(y[i]);
- lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];
- pixel = *lpw;
- /* Windows uses 5,5,5 for 16-bit */
- rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;
- rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;
- rgba[i][BCOMP] = (pixel & 0x001f) << 3;
- rgba[i][ACOMP] = 255;
- }
-}
-
-
-
-
-/**********************************************************************/
-/***** BUFFER Functions *****/
-/**********************************************************************/
-
-
-
-
-static void
-wmesa_delete_renderbuffer(struct gl_renderbuffer *rb)
-{
- free(rb);
-}
-
-
-/**
- * This is called by Mesa whenever it determines that the window size
- * has changed. Do whatever's needed to cope with that.
- */
-static GLboolean
-wmesa_renderbuffer_storage(struct gl_context *ctx,
- struct gl_renderbuffer *rb,
- GLenum internalFormat,
- GLuint width,
- GLuint height)
-{
- rb->Width = width;
- rb->Height = height;
- return GL_TRUE;
-}
-
-
-/**
- * Plug in the Get/PutRow/Values functions for a renderbuffer depending
- * on if we're drawing to the front or back color buffer.
- */
-void wmesa_set_renderbuffer_funcs(struct gl_renderbuffer *rb, int pixelformat,
- int cColorBits, int double_buffer)
-{
- if (double_buffer) {
- /* back buffer */
- /* Picking the correct span functions is important because
- * the DIB was allocated with the indicated depth. */
- switch(pixelformat) {
- case PF_5R6G5B:
- rb->PutRow = write_rgba_span_16;
- rb->PutRowRGB = write_rgb_span_16;
- rb->PutMonoRow = write_mono_rgba_span_16;
- rb->PutValues = write_rgba_pixels_16;
- rb->PutMonoValues = write_mono_rgba_pixels_16;
- rb->GetRow = read_rgba_span_16;
- rb->GetValues = read_rgba_pixels_16;
- break;
- case PF_8R8G8B:
- if (cColorBits == 24)
- {
- rb->PutRow = write_rgba_span_24;
- rb->PutRowRGB = write_rgb_span_24;
- rb->PutMonoRow = write_mono_rgba_span_24;
- rb->PutValues = write_rgba_pixels_24;
- rb->PutMonoValues = write_mono_rgba_pixels_24;
- rb->GetRow = read_rgba_span_24;
- rb->GetValues = read_rgba_pixels_24;
- }
- else
- {
- rb->PutRow = write_rgba_span_32;
- rb->PutRowRGB = write_rgb_span_32;
- rb->PutMonoRow = write_mono_rgba_span_32;
- rb->PutValues = write_rgba_pixels_32;
- rb->PutMonoValues = write_mono_rgba_pixels_32;
- rb->GetRow = read_rgba_span_32;
- rb->GetValues = read_rgba_pixels_32;
- }
- break;
- default:
- break;
- }
- }
- else {
- /* front buffer (actual Windows window) */
- rb->PutRow = write_rgba_span_front;
- rb->PutRowRGB = write_rgb_span_front;
- rb->PutMonoRow = write_mono_rgba_span_front;
- rb->PutValues = write_rgba_pixels_front;
- rb->PutMonoValues = write_mono_rgba_pixels_front;
- rb->GetRow = read_rgba_span_front;
- rb->GetValues = read_rgba_pixels_front;
- }
-}
-
-/**
- * Called by ctx->Driver.ResizeBuffers()
- * Resize the front/back colorbuffers to match the latest window size.
- */
-static void
-wmesa_resize_buffers(struct gl_context *ctx, struct gl_framebuffer *buffer,
- GLuint width, GLuint height)
-{
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);
-
- if (pwfb->Base.Width != width || pwfb->Base.Height != height) {
- /* Realloc back buffer */
- if (ctx->Visual.doubleBufferMode == 1) {
- wmDeleteBackingStore(pwfb);
- wmCreateBackingStore(pwfb, width, height);
- }
- }
- _mesa_resize_framebuffer(ctx, buffer, width, height);
-}
-
-
-/**
- * Called by glViewport.
- * This is a good time for us to poll the current window size and adjust
- * our renderbuffers to match the current window size.
- * Remember, we have no opportunity to respond to conventional
- * resize events since the driver has no event loop.
- * Thus, we poll.
- * MakeCurrent also ends up making a call here, so that ensures
- * we get the viewport set correctly, even if the app does not call
- * glViewport and relies on the defaults.
- */
-static void wmesa_viewport(struct gl_context *ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height)
-{
- WMesaContext pwc = wmesa_context(ctx);
- GLuint new_width, new_height;
-
- wmesa_get_buffer_size(ctx->WinSysDrawBuffer, &new_width, &new_height);
-
- /**
- * Resize buffers if the window size changed.
- */
- wmesa_resize_buffers(ctx, ctx->WinSysDrawBuffer, new_width, new_height);
- ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */
-}
-
-
-
-
-/**
- * Called when the driver should update it's state, based on the new_state
- * flags.
- */
-static void wmesa_update_state(struct gl_context *ctx, GLuint new_state)
-{
- _swrast_InvalidateState(ctx, new_state);
- _swsetup_InvalidateState(ctx, new_state);
- _vbo_InvalidateState(ctx, new_state);
- _tnl_InvalidateState(ctx, new_state);
-
- /* TODO - This code is not complete yet because I
- * don't know what to do for all state updates.
- */
-
- if (new_state & _NEW_BUFFERS) {
- }
-}
-
-
-
-
-
-/**********************************************************************/
-/***** WMESA Functions *****/
-/**********************************************************************/
-
-WMesaContext WMesaCreateContext(HDC hDC,
- HPALETTE* Pal,
- GLboolean rgb_flag,
- GLboolean db_flag,
- GLboolean alpha_flag)
-{
- WMesaContext c;
- struct dd_function_table functions;
- GLint red_bits, green_bits, blue_bits, alpha_bits;
- struct gl_context *ctx;
- struct gl_config *visual;
-
- (void) Pal;
-
- /* Indexed mode not supported */
- if (!rgb_flag)
- return NULL;
-
- /* Allocate wmesa context */
- c = CALLOC_STRUCT(wmesa_context);
- if (!c)
- return NULL;
-
-#if 0
- /* I do not understand this contributed code */
- /* Support memory and device contexts */
- if(WindowFromDC(hDC) != NULL) {
- c->hDC = GetDC(WindowFromDC(hDC)); /* huh ???? */
- }
- else {
- c->hDC = hDC;
- }
-#else
- c->hDC = hDC;
-#endif
-
- /* Get data for visual */
- /* Dealing with this is actually a bit of overkill because Mesa will end
- * up treating all color component size requests less than 8 by using
- * a single byte per channel. In addition, the interface to the span
- * routines passes colors as an entire byte per channel anyway, so there
- * is nothing to be saved by telling the visual to be 16 bits if the device
- * is 16 bits. That is, Mesa is going to compute colors down to 8 bits per
- * channel anyway.
- * But we go through the motions here anyway.
- */
- switch (GetDeviceCaps(c->hDC, BITSPIXEL)) {
- case 16:
- red_bits = green_bits = blue_bits = 5;
- alpha_bits = 0;
- break;
- default:
- red_bits = green_bits = blue_bits = 8;
- alpha_bits = 8;
- break;
- }
- /* Create visual based on flags */
- visual = _mesa_create_visual(db_flag, /* db_flag */
- GL_FALSE, /* stereo */
- red_bits, green_bits, blue_bits, /* color RGB */
- alpha_flag ? alpha_bits : 0, /* color A */
- DEFAULT_SOFTWARE_DEPTH_BITS, /* depth_bits */
- 8, /* stencil_bits */
- 16,16,16, /* accum RGB */
- alpha_flag ? 16 : 0, /* accum A */
- 1); /* num samples */
-
- if (!visual) {
- free(c);
- return NULL;
- }
-
- /* Set up driver functions */
- _mesa_init_driver_functions(&functions);
- functions.GetString = wmesa_get_string;
- functions.UpdateState = wmesa_update_state;
- functions.GetBufferSize = wmesa_get_buffer_size;
- functions.Flush = wmesa_flush;
- functions.Clear = clear;
- functions.ClearColor = clear_color;
- functions.ResizeBuffers = wmesa_resize_buffers;
- functions.Viewport = wmesa_viewport;
-
- /* initialize the Mesa context data */
- ctx = &c->gl_ctx;
- _mesa_initialize_context(ctx, visual, NULL, &functions, (void *)c);
-
- /* visual no longer needed - it was copied by _mesa_initialize_context() */
- _mesa_destroy_visual(visual);
-
- _mesa_enable_sw_extensions(ctx);
- _mesa_enable_1_3_extensions(ctx);
- _mesa_enable_1_4_extensions(ctx);
- _mesa_enable_1_5_extensions(ctx);
- _mesa_enable_2_0_extensions(ctx);
- _mesa_enable_2_1_extensions(ctx);
-
- _mesa_meta_init(ctx);
-
- /* Initialize the software rasterizer and helper modules. */
- if (!_swrast_CreateContext(ctx) ||
- !_vbo_CreateContext(ctx) ||
- !_tnl_CreateContext(ctx) ||
- !_swsetup_CreateContext(ctx)) {
- _mesa_free_context_data(ctx);
- free(c);
- return NULL;
- }
- _swsetup_Wakeup(ctx);
- TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
-
- return c;
-}
-
-
-void WMesaDestroyContext( WMesaContext pwc )
-{
- struct gl_context *ctx = &pwc->gl_ctx;
- WMesaFramebuffer pwfb;
- GET_CURRENT_CONTEXT(cur_ctx);
-
- if (cur_ctx == ctx) {
- /* unbind current if deleting current context */
- WMesaMakeCurrent(NULL, NULL);
- }
-
- /* clean up frame buffer resources */
- pwfb = wmesa_lookup_framebuffer(pwc->hDC);
- if (pwfb) {
- if (ctx->Visual.doubleBufferMode == 1)
- wmDeleteBackingStore(pwfb);
- wmesa_free_framebuffer(pwc->hDC);
- }
-
- /* Release for device, not memory contexts */
- if (WindowFromDC(pwc->hDC) != NULL)
- {
- ReleaseDC(WindowFromDC(pwc->hDC), pwc->hDC);
- }
- DeleteObject(pwc->clearPen);
- DeleteObject(pwc->clearBrush);
-
- _mesa_meta_free(ctx);
-
- _swsetup_DestroyContext(ctx);
- _tnl_DestroyContext(ctx);
- _vbo_DestroyContext(ctx);
- _swrast_DestroyContext(ctx);
-
- _mesa_free_context_data(ctx);
- free(pwc);
-}
-
-
-/**
- * Create a new color renderbuffer.
- */
-struct gl_renderbuffer *
-wmesa_new_renderbuffer(void)
-{
- struct gl_renderbuffer *rb = CALLOC_STRUCT(gl_renderbuffer);
- if (!rb)
- return NULL;
-
- _mesa_init_renderbuffer(rb, (GLuint)0);
-
- rb->_BaseFormat = GL_RGBA;
- rb->InternalFormat = GL_RGBA;
- rb->DataType = CHAN_TYPE;
- rb->Delete = wmesa_delete_renderbuffer;
- rb->AllocStorage = wmesa_renderbuffer_storage;
- return rb;
-}
-
-
-void WMesaMakeCurrent(WMesaContext c, HDC hdc)
-{
- WMesaFramebuffer pwfb;
-
- {
- /* return if already current */
- GET_CURRENT_CONTEXT(ctx);
- WMesaContext pwc = wmesa_context(ctx);
- if (pwc && c == pwc && pwc->hDC == hdc)
- return;
- }
-
- pwfb = wmesa_lookup_framebuffer(hdc);
-
- /* Lazy creation of framebuffers */
- if (c && !pwfb && hdc) {
- struct gl_renderbuffer *rb;
- struct gl_config *visual = &c->gl_ctx.Visual;
- GLuint width, height;
-
- get_window_size(hdc, &width, &height);
-
- c->clearPen = CreatePen(PS_SOLID, 1, 0);
- c->clearBrush = CreateSolidBrush(0);
-
- pwfb = wmesa_new_framebuffer(hdc, visual);
-
- /* Create back buffer if double buffered */
- if (visual->doubleBufferMode == 1) {
- wmCreateBackingStore(pwfb, width, height);
- }
-
- /* make render buffers */
- if (visual->doubleBufferMode == 1) {
- rb = wmesa_new_renderbuffer();
- _mesa_add_renderbuffer(&pwfb->Base, BUFFER_BACK_LEFT, rb);
- wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 1);
- }
- rb = wmesa_new_renderbuffer();
- _mesa_add_renderbuffer(&pwfb->Base, BUFFER_FRONT_LEFT, rb);
- wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 0);
-
- /* Let Mesa own the Depth, Stencil, and Accum buffers */
- _mesa_add_soft_renderbuffers(&pwfb->Base,
- GL_FALSE, /* color */
- visual->depthBits > 0,
- visual->stencilBits > 0,
- visual->accumRedBits > 0,
- visual->alphaBits >0,
- GL_FALSE);
- }
-
- if (c && pwfb)
- _mesa_make_current(&c->gl_ctx, &pwfb->Base, &pwfb->Base);
- else
- _mesa_make_current(NULL, NULL, NULL);
-}
-
-
-void WMesaSwapBuffers( HDC hdc )
-{
- GET_CURRENT_CONTEXT(ctx);
- WMesaContext pwc = wmesa_context(ctx);
- WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(hdc);
-
- if (!pwfb) {
- _mesa_problem(NULL, "wmesa: swapbuffers on unknown hdc");
- return;
- }
-
- /* If we're swapping the buffer associated with the current context
- * we have to flush any pending rendering commands first.
- */
- if (pwc->hDC == hdc) {
- _mesa_notifySwapBuffers(ctx);
-
- BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,
- pwfb->dib_hDC, 0, 0, SRCCOPY);
- }
- else {
- /* XXX for now only allow swapping current window */
- _mesa_problem(NULL, "wmesa: can't swap non-current window");
- }
-}
-
-void WMesaShareLists(WMesaContext ctx_to_share, WMesaContext ctx)
-{
- _mesa_share_state(&ctx->gl_ctx, &ctx_to_share->gl_ctx);
-}
-
+/*
+ * Windows (Win32/Win64) device driver for Mesa
+ *
+ */
+
+#include "wmesadef.h"
+#include "colors.h"
+#include <GL/wmesa.h>
+#include <winuser.h>
+#include "context.h"
+#include "extensions.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
+#include "drivers/common/driverfuncs.h"
+#include "drivers/common/meta.h"
+#include "vbo/vbo.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
+
+/* linked list of our Framebuffers (windows) */
+static WMesaFramebuffer FirstFramebuffer = NULL;
+
+
+/**
+ * Create a new WMesaFramebuffer object which will correspond to the
+ * given HDC (Window handle).
+ */
+WMesaFramebuffer
+wmesa_new_framebuffer(HDC hdc, struct gl_config *visual)
+{
+ WMesaFramebuffer pwfb
+ = (WMesaFramebuffer) malloc(sizeof(struct wmesa_framebuffer));
+ if (pwfb) {
+ _mesa_initialize_window_framebuffer(&pwfb->Base, visual);
+ pwfb->hDC = hdc;
+ /* insert at head of list */
+ pwfb->next = FirstFramebuffer;
+ FirstFramebuffer = pwfb;
+ }
+ return pwfb;
+}
+
+/**
+ * Given an hdc, free the corresponding WMesaFramebuffer
+ */
+void
+wmesa_free_framebuffer(HDC hdc)
+{
+ WMesaFramebuffer pwfb, prev;
+ for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {
+ if (pwfb->hDC == hdc)
+ break;
+ prev = pwfb;
+ }
+ if (pwfb) {
+ struct gl_framebuffer *fb;
+ if (pwfb == FirstFramebuffer)
+ FirstFramebuffer = pwfb->next;
+ else
+ prev->next = pwfb->next;
+ fb = &pwfb->Base;
+ _mesa_reference_framebuffer(&fb, NULL);
+ }
+}
+
+/**
+ * Given an hdc, return the corresponding WMesaFramebuffer
+ */
+WMesaFramebuffer
+wmesa_lookup_framebuffer(HDC hdc)
+{
+ WMesaFramebuffer pwfb;
+ for (pwfb = FirstFramebuffer; pwfb; pwfb = pwfb->next) {
+ if (pwfb->hDC == hdc)
+ return pwfb;
+ }
+ return NULL;
+}
+
+
+/**
+ * Given a struct gl_framebuffer, return the corresponding WMesaFramebuffer.
+ */
+static WMesaFramebuffer wmesa_framebuffer(struct gl_framebuffer *fb)
+{
+ return (WMesaFramebuffer) fb;
+}
+
+
+/**
+ * Given a struct gl_context, return the corresponding WMesaContext.
+ */
+static WMesaContext wmesa_context(const struct gl_context *ctx)
+{
+ return (WMesaContext) ctx;
+}
+
+
+/*
+ * Every driver should implement a GetString function in order to
+ * return a meaningful GL_RENDERER string.
+ */
+static const GLubyte *wmesa_get_string(struct gl_context *ctx, GLenum name)
+{
+ return (name == GL_RENDERER) ?
+ (GLubyte *) "Mesa Windows GDI Driver" : NULL;
+}
+
+
+/*
+ * Determine the pixel format based on the pixel size.
+ */
+static void wmSetPixelFormat(WMesaFramebuffer pwfb, HDC hDC)
+{
+ pwfb->cColorBits = GetDeviceCaps(hDC, BITSPIXEL);
+
+ /* Only 16 and 32 bit targets are supported now */
+ assert(pwfb->cColorBits == 0 ||
+ pwfb->cColorBits == 16 ||
+ pwfb->cColorBits == 24 ||
+ pwfb->cColorBits == 32);
+
+ switch(pwfb->cColorBits){
+ case 8:
+ pwfb->pixelformat = PF_INDEX8;
+ break;
+ case 16:
+ pwfb->pixelformat = PF_5R6G5B;
+ break;
+ case 24:
+ case 32:
+ pwfb->pixelformat = PF_8R8G8B;
+ break;
+ default:
+ pwfb->pixelformat = PF_BADFORMAT;
+ }
+}
+
+
+/**
+ * Create DIB for back buffer.
+ * We write into this memory with the span routines and then blit it
+ * to the window on a buffer swap.
+ */
+BOOL wmCreateBackingStore(WMesaFramebuffer pwfb, long lxSize, long lySize)
+{
+ HDC hdc = pwfb->hDC;
+ LPBITMAPINFO pbmi = &(pwfb->bmi);
+ HDC hic;
+
+ pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ pbmi->bmiHeader.biWidth = lxSize;
+ pbmi->bmiHeader.biHeight= -lySize;
+ pbmi->bmiHeader.biPlanes = 1;
+ pbmi->bmiHeader.biBitCount = GetDeviceCaps(pwfb->hDC, BITSPIXEL);
+ pbmi->bmiHeader.biCompression = BI_RGB;
+ pbmi->bmiHeader.biSizeImage = 0;
+ pbmi->bmiHeader.biXPelsPerMeter = 0;
+ pbmi->bmiHeader.biYPelsPerMeter = 0;
+ pbmi->bmiHeader.biClrUsed = 0;
+ pbmi->bmiHeader.biClrImportant = 0;
+
+ pwfb->cColorBits = pbmi->bmiHeader.biBitCount;
+ pwfb->ScanWidth = (lxSize * (pwfb->cColorBits / 8) + 3) & ~3;
+
+ hic = CreateIC("display", NULL, NULL, NULL);
+ pwfb->dib_hDC = CreateCompatibleDC(hic);
+
+ pwfb->hbmDIB = CreateDIBSection(hic,
+ &pwfb->bmi,
+ DIB_RGB_COLORS,
+ (void **)&(pwfb->pbPixels),
+ 0,
+ 0);
+ pwfb->hOldBitmap = SelectObject(pwfb->dib_hDC, pwfb->hbmDIB);
+
+ DeleteDC(hic);
+
+ wmSetPixelFormat(pwfb, pwfb->hDC);
+ return TRUE;
+}
+
+
+static wmDeleteBackingStore(WMesaFramebuffer pwfb)
+{
+ if (pwfb->hbmDIB) {
+ SelectObject(pwfb->dib_hDC, pwfb->hOldBitmap);
+ DeleteDC(pwfb->dib_hDC);
+ DeleteObject(pwfb->hbmDIB);
+ }
+}
+
+
+/**
+ * Find the width and height of the window named by hdc.
+ */
+static void
+get_window_size(HDC hdc, GLuint *width, GLuint *height)
+{
+ if (WindowFromDC(hdc)) {
+ RECT rect;
+ GetClientRect(WindowFromDC(hdc), &rect);
+ *width = rect.right - rect.left;
+ *height = rect.bottom - rect.top;
+ }
+ else { /* Memory context */
+ /* From contributed code - use the size of the desktop
+ * for the size of a memory context (?) */
+ *width = GetDeviceCaps(hdc, HORZRES);
+ *height = GetDeviceCaps(hdc, VERTRES);
+ }
+}
+
+
+static void
+wmesa_get_buffer_size(struct gl_framebuffer *buffer, GLuint *width, GLuint *height)
+{
+ WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);
+ get_window_size(pwfb->hDC, width, height);
+}
+
+
+static void wmesa_flush(struct gl_context *ctx)
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->WinSysDrawBuffer);
+
+ if (ctx->Visual.doubleBufferMode == 1) {
+ BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,
+ pwfb->dib_hDC, 0, 0, SRCCOPY);
+ }
+ else {
+ /* Do nothing for single buffer */
+ }
+}
+
+
+/**********************************************************************/
+/***** CLEAR Functions *****/
+/**********************************************************************/
+
+/* If we do not implement these, Mesa clears the buffers via the pixel
+ * span writing interface, which is very slow for a clear operation.
+ */
+
+/*
+ * Set the color used to clear the color buffer.
+ */
+static void clear_color(struct gl_context *ctx, const GLfloat color[4])
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLubyte col[3];
+ UINT bytesPerPixel = pwfb->cColorBits / 8;
+
+ CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+ pwc->clearColorRef = RGB(col[0], col[1], col[2]);
+ DeleteObject(pwc->clearPen);
+ DeleteObject(pwc->clearBrush);
+ pwc->clearPen = CreatePen(PS_SOLID, 1, pwc->clearColorRef);
+ pwc->clearBrush = CreateSolidBrush(pwc->clearColorRef);
+}
+
+
+/*
+ * Clear the specified region of the color buffer using the clear color
+ * or index as specified by one of the two functions above.
+ *
+ * This procedure clears either the front and/or the back COLOR buffers.
+ * Only the "left" buffer is cleared since we are not stereo.
+ * Clearing of the other non-color buffers is left to the swrast.
+ */
+
+static void clear(struct gl_context *ctx, GLbitfield mask)
+{
+#define FLIP(Y) (ctx->DrawBuffer->Height - (Y) - 1)
+ const GLint x = ctx->DrawBuffer->_Xmin;
+ const GLint y = ctx->DrawBuffer->_Ymin;
+ const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
+ const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
+
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ int done = 0;
+
+ /* Let swrast do all the work if the masks are not set to
+ * clear all channels. */
+ if (!ctx->Color.ColorMask[0][0] ||
+ !ctx->Color.ColorMask[0][1] ||
+ !ctx->Color.ColorMask[0][2] ||
+ !ctx->Color.ColorMask[0][3]) {
+ _swrast_Clear(ctx, mask);
+ return;
+ }
+
+ /* Back buffer */
+ if (mask & BUFFER_BIT_BACK_LEFT) {
+
+ int i, rowSize;
+ UINT bytesPerPixel = pwfb->cColorBits / 8;
+ LPBYTE lpb, clearRow;
+ LPWORD lpw;
+ BYTE bColor;
+ WORD wColor;
+ BYTE r, g, b;
+ DWORD dwColor;
+ LPDWORD lpdw;
+
+ /* Try for a fast clear - clearing entire buffer with a single
+ * byte value. */
+ if (width == ctx->DrawBuffer->Width &&
+ height == ctx->DrawBuffer->Height) { /* entire buffer */
+ /* Now check for an easy clear value */
+ switch (bytesPerPixel) {
+ case 1:
+ bColor = BGR8(GetRValue(pwc->clearColorRef),
+ GetGValue(pwc->clearColorRef),
+ GetBValue(pwc->clearColorRef));
+ memset(pwfb->pbPixels, bColor,
+ pwfb->ScanWidth * height);
+ done = 1;
+ break;
+ case 2:
+ wColor = BGR16(GetRValue(pwc->clearColorRef),
+ GetGValue(pwc->clearColorRef),
+ GetBValue(pwc->clearColorRef));
+ if (((wColor >> 8) & 0xff) == (wColor & 0xff)) {
+ memset(pwfb->pbPixels, wColor & 0xff,
+ pwfb->ScanWidth * height);
+ done = 1;
+ }
+ break;
+ case 3:
+ /* fall through */
+ case 4:
+ if (GetRValue(pwc->clearColorRef) ==
+ GetGValue(pwc->clearColorRef) &&
+ GetRValue(pwc->clearColorRef) ==
+ GetBValue(pwc->clearColorRef)) {
+ memset(pwfb->pbPixels,
+ GetRValue(pwc->clearColorRef),
+ pwfb->ScanWidth * height);
+ done = 1;
+ }
+ break;
+ default:
+ break;
+ }
+ } /* all */
+
+ if (!done) {
+ /* Need to clear a row at a time. Begin by setting the first
+ * row in the area to be cleared to the clear color. */
+
+ clearRow = pwfb->pbPixels +
+ pwfb->ScanWidth * FLIP(y) +
+ bytesPerPixel * x;
+ switch (bytesPerPixel) {
+ case 1:
+ lpb = clearRow;
+ bColor = BGR8(GetRValue(pwc->clearColorRef),
+ GetGValue(pwc->clearColorRef),
+ GetBValue(pwc->clearColorRef));
+ memset(lpb, bColor, width);
+ break;
+ case 2:
+ lpw = (LPWORD)clearRow;
+ wColor = BGR16(GetRValue(pwc->clearColorRef),
+ GetGValue(pwc->clearColorRef),
+ GetBValue(pwc->clearColorRef));
+ for (i=0; i<width; i++)
+ *lpw++ = wColor;
+ break;
+ case 3:
+ lpb = clearRow;
+ r = GetRValue(pwc->clearColorRef);
+ g = GetGValue(pwc->clearColorRef);
+ b = GetBValue(pwc->clearColorRef);
+ for (i=0; i<width; i++) {
+ *lpb++ = b;
+ *lpb++ = g;
+ *lpb++ = r;
+ }
+ break;
+ case 4:
+ lpdw = (LPDWORD)clearRow;
+ dwColor = BGR32(GetRValue(pwc->clearColorRef),
+ GetGValue(pwc->clearColorRef),
+ GetBValue(pwc->clearColorRef));
+ for (i=0; i<width; i++)
+ *lpdw++ = dwColor;
+ break;
+ default:
+ break;
+ } /* switch */
+
+ /* copy cleared row to other rows in buffer */
+ lpb = clearRow - pwfb->ScanWidth;
+ rowSize = width * bytesPerPixel;
+ for (i=1; i<height; i++) {
+ memcpy(lpb, clearRow, rowSize);
+ lpb -= pwfb->ScanWidth;
+ }
+ } /* not done */
+ mask &= ~BUFFER_BIT_BACK_LEFT;
+ } /* back buffer */
+
+ /* front buffer */
+ if (mask & BUFFER_BIT_FRONT_LEFT) {
+ HDC DC = pwc->hDC;
+ HPEN Old_Pen = SelectObject(DC, pwc->clearPen);
+ HBRUSH Old_Brush = SelectObject(DC, pwc->clearBrush);
+ Rectangle(DC,
+ x,
+ FLIP(y) + 1,
+ x + width + 1,
+ FLIP(y) - height + 1);
+ SelectObject(DC, Old_Pen);
+ SelectObject(DC, Old_Brush);
+ mask &= ~BUFFER_BIT_FRONT_LEFT;
+ } /* front buffer */
+
+ /* Call swrast if there is anything left to clear (like DEPTH) */
+ if (mask)
+ _swrast_Clear(ctx, mask);
+
+#undef FLIP
+}
+
+
+/**********************************************************************/
+/***** PIXEL Functions *****/
+/**********************************************************************/
+
+#define FLIP(Y) (rb->Height - (Y) - 1)
+
+
+/**
+ ** Front Buffer reading/writing
+ ** These are slow, but work with all non-indexed visual types.
+ **/
+
+/* Write a horizontal span of RGBA color pixels with a boolean mask. */
+static void write_rgba_span_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(pwc->hDC);
+ CONST BITMAPINFO bmi=
+ {
+ {
+ sizeof(BITMAPINFOHEADER),
+ n, 1, 1, 32, BI_RGB, 0, 1, 1, 0, 0
+ }
+ };
+ HBITMAP bmp=0;
+ HDC mdc=0;
+ typedef union
+ {
+ unsigned i;
+ struct {
+ unsigned b:8, g:8, r:8, a:8;
+ };
+ } BGRA;
+ BGRA *bgra, c;
+ GLuint i;
+
+ if (n < 16) { // the value 16 is just guessed
+ y=FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ SetPixel(pwc->hDC, x+i, y,
+ RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
+ }
+ else {
+ for (i=0; i<n; i++)
+ SetPixel(pwc->hDC, x+i, y,
+ RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]));
+ }
+ }
+ else {
+ if (!pwfb) {
+ _mesa_problem(NULL, "wmesa: write_rgba_span_front on unknown hdc");
+ return;
+ }
+ bgra=malloc(n*sizeof(BGRA));
+ if (!bgra) {
+ _mesa_problem(NULL, "wmesa: write_rgba_span_front: out of memory");
+ return;
+ }
+ c.a=0;
+ if (mask) {
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ c.r=rgba[i][RCOMP];
+ c.g=rgba[i][GCOMP];
+ c.b=rgba[i][BCOMP];
+ c.a=rgba[i][ACOMP];
+ bgra[i]=c;
+ }
+ else
+ bgra[i].i=0;
+ }
+ }
+ else {
+ for (i=0; i<n; i++) {
+ c.r=rgba[i][RCOMP];
+ c.g=rgba[i][GCOMP];
+ c.b=rgba[i][BCOMP];
+ c.a=rgba[i][ACOMP];
+ bgra[i]=c;
+ }
+ }
+ bmp=CreateBitmap(n, 1, 1, 32, bgra);
+ mdc=CreateCompatibleDC(pwfb->hDC);
+ SelectObject(mdc, bmp);
+ y=FLIP(y);
+ BitBlt(pwfb->hDC, x, y, n, 1, mdc, 0, 0, SRCCOPY);
+ SelectObject(mdc, 0);
+ DeleteObject(bmp);
+ DeleteDC(mdc);
+ free(bgra);
+ }
+}
+
+/* Write a horizontal span of RGB color pixels with a boolean mask. */
+static void write_rgb_span_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ GLuint i;
+
+ (void) ctx;
+ y=FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP],
+ rgb[i][BCOMP]));
+ }
+ else {
+ for (i=0; i<n; i++)
+ SetPixel(pwc->hDC, x+i, y, RGB(rgb[i][RCOMP], rgb[i][GCOMP],
+ rgb[i][BCOMP]));
+ }
+
+}
+
+/*
+ * Write a horizontal span of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_span_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ COLORREF colorref;
+
+ (void) ctx;
+ colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
+ y=FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ SetPixel(pwc->hDC, x+i, y, colorref);
+ }
+ else
+ for (i=0; i<n; i++)
+ SetPixel(pwc->hDC, x+i, y, colorref);
+
+}
+
+/* Write an array of RGBA pixels with a boolean mask. */
+static void write_rgba_pixels_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const GLubyte rgba[][4],
+ const GLubyte mask[] )
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ (void) ctx;
+ for (i=0; i<n; i++)
+ if (mask[i])
+ SetPixel(pwc->hDC, x[i], FLIP(y[i]),
+ RGB(rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP]));
+}
+
+
+
+/*
+ * Write an array of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_pixels_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const GLchan color[4],
+ const GLubyte mask[] )
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ COLORREF colorref;
+ (void) ctx;
+ colorref = RGB(color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ SetPixel(pwc->hDC, x[i], FLIP(y[i]), colorref);
+}
+
+/* Read a horizontal span of color pixels. */
+static void read_rgba_span_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ GLuint i;
+ COLORREF Color;
+ y = FLIP(y);
+ for (i=0; i<n; i++) {
+ Color = GetPixel(pwc->hDC, x+i, y);
+ rgba[i][RCOMP] = GetRValue(Color);
+ rgba[i][GCOMP] = GetGValue(Color);
+ rgba[i][BCOMP] = GetBValue(Color);
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+/* Read an array of color pixels. */
+static void read_rgba_pixels_front(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4])
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ GLuint i;
+ COLORREF Color;
+ for (i=0; i<n; i++) {
+ GLint y2 = FLIP(y[i]);
+ Color = GetPixel(pwc->hDC, x[i], y2);
+ rgba[i][RCOMP] = GetRValue(Color);
+ rgba[i][GCOMP] = GetGValue(Color);
+ rgba[i][BCOMP] = GetBValue(Color);
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+/*********************************************************************/
+
+/* DOUBLE BUFFER 32-bit */
+
+#define WMSETPIXEL32(pwc, y, x, r, g, b) { \
+LPDWORD lpdw = ((LPDWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \
+*lpdw = BGR32((r),(g),(b)); }
+
+
+
+/* Write a horizontal span of RGBA color pixels with a boolean mask. */
+static void write_rgba_span_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLuint i;
+ LPDWORD lpdw;
+
+ (void) ctx;
+
+ y=FLIP(y);
+ lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ lpdw[i] = BGR32(rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ *lpdw++ = BGR32(rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP]);
+ }
+}
+
+
+/* Write a horizontal span of RGB color pixels with a boolean mask. */
+static void write_rgb_span_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLuint i;
+ LPDWORD lpdw;
+
+ (void) ctx;
+
+ y=FLIP(y);
+ lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ lpdw[i] = BGR32(rgb[i][RCOMP], rgb[i][GCOMP],
+ rgb[i][BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ *lpdw++ = BGR32(rgb[i][RCOMP], rgb[i][GCOMP],
+ rgb[i][BCOMP]);
+ }
+}
+
+/*
+ * Write a horizontal span of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_span_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ LPDWORD lpdw;
+ DWORD pixel;
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ y=FLIP(y);
+ pixel = BGR32(color[RCOMP], color[GCOMP], color[BCOMP]);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ lpdw[i] = pixel;
+ }
+ else
+ for (i=0; i<n; i++)
+ *lpdw++ = pixel;
+
+}
+
+/* Write an array of RGBA pixels with a boolean mask. */
+static void write_rgba_pixels_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte rgba[][4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ WMSETPIXEL32(pwfb, FLIP(y[i]), x[i],
+ rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+}
+
+/*
+ * Write an array of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_pixels_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ WMSETPIXEL32(pwfb, FLIP(y[i]),x[i],color[RCOMP],
+ color[GCOMP], color[BCOMP]);
+}
+
+/* Read a horizontal span of color pixels. */
+static void read_rgba_span_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4] )
+{
+ GLuint i;
+ DWORD pixel;
+ LPDWORD lpdw;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+
+ y = FLIP(y);
+ lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ for (i=0; i<n; i++) {
+ pixel = lpdw[i];
+ rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);
+ rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);
+ rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+/* Read an array of color pixels. */
+static void read_rgba_pixels_32(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4])
+{
+ GLuint i;
+ DWORD pixel;
+ LPDWORD lpdw;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+
+ for (i=0; i<n; i++) {
+ GLint y2 = FLIP(y[i]);
+ lpdw = ((LPDWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];
+ pixel = *lpdw;
+ rgba[i][RCOMP] = (GLubyte)((pixel & 0x00ff0000) >> 16);
+ rgba[i][GCOMP] = (GLubyte)((pixel & 0x0000ff00) >> 8);
+ rgba[i][BCOMP] = (GLubyte)(pixel & 0x000000ff);
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+/*********************************************************************/
+
+/* DOUBLE BUFFER 24-bit */
+
+#define WMSETPIXEL24(pwc, y, x, r, g, b) { \
+LPBYTE lpb = ((LPBYTE)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (3 * x)); \
+lpb[0] = (b); \
+lpb[1] = (g); \
+lpb[2] = (r); }
+
+/* Write a horizontal span of RGBA color pixels with a boolean mask. */
+static void write_rgba_span_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLuint i;
+ LPBYTE lpb;
+
+ (void) ctx;
+
+ y=FLIP(y);
+ lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i]) {
+ lpb[3*i] = rgba[i][BCOMP];
+ lpb[3*i+1] = rgba[i][GCOMP];
+ lpb[3*i+2] = rgba[i][RCOMP];
+ }
+ }
+ else {
+ for (i=0; i<n; i++) {
+ *lpb++ = rgba[i][BCOMP];
+ *lpb++ = rgba[i][GCOMP];
+ *lpb++ = rgba[i][RCOMP];
+ }
+ }
+}
+
+
+/* Write a horizontal span of RGB color pixels with a boolean mask. */
+static void write_rgb_span_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLuint i;
+ LPBYTE lpb;
+
+ (void) ctx;
+
+ y=FLIP(y);
+ lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i]) {
+ lpb[3*i] = rgb[i][BCOMP];
+ lpb[3*i+1] = rgb[i][GCOMP];
+ lpb[3*i+2] = rgb[i][RCOMP];
+ }
+ }
+ else {
+ for (i=0; i<n; i++) {
+ *lpb++ = rgb[i][BCOMP];
+ *lpb++ = rgb[i][GCOMP];
+ *lpb++ = rgb[i][RCOMP];
+ }
+ }
+}
+
+/*
+ * Write a horizontal span of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_span_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ LPBYTE lpb;
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
+ y=FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i]) {
+ lpb[3*i] = color[BCOMP];
+ lpb[3*i+1] = color[GCOMP];
+ lpb[3*i+2] = color[RCOMP];
+ }
+ }
+ else
+ for (i=0; i<n; i++) {
+ *lpb++ = color[BCOMP];
+ *lpb++ = color[GCOMP];
+ *lpb++ = color[RCOMP];
+ }
+}
+
+/* Write an array of RGBA pixels with a boolean mask. */
+static void write_rgba_pixels_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte rgba[][4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ WMSETPIXEL24(pwfb, FLIP(y[i]), x[i],
+ rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+}
+
+/*
+ * Write an array of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_pixels_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ WMSETPIXEL24(pwfb, FLIP(y[i]),x[i],color[RCOMP],
+ color[GCOMP], color[BCOMP]);
+}
+
+/* Read a horizontal span of color pixels. */
+static void read_rgba_span_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4] )
+{
+ GLuint i;
+ LPBYTE lpb;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+
+ y = FLIP(y);
+ lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y)) + (3 * x);
+ for (i=0; i<n; i++) {
+ rgba[i][RCOMP] = lpb[3*i+2];
+ rgba[i][GCOMP] = lpb[3*i+1];
+ rgba[i][BCOMP] = lpb[3*i];
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+/* Read an array of color pixels. */
+static void read_rgba_pixels_24(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4])
+{
+ GLuint i;
+ LPBYTE lpb;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+
+ for (i=0; i<n; i++) {
+ GLint y2 = FLIP(y[i]);
+ lpb = ((LPBYTE)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + (3 * x[i]);
+ rgba[i][RCOMP] = lpb[3*i+2];
+ rgba[i][GCOMP] = lpb[3*i+1];
+ rgba[i][BCOMP] = lpb[3*i];
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+/*********************************************************************/
+
+/* DOUBLE BUFFER 16-bit */
+
+#define WMSETPIXEL16(pwc, y, x, r, g, b) { \
+LPWORD lpw = ((LPWORD)((pwc)->pbPixels + (pwc)->ScanWidth * (y)) + (x)); \
+*lpw = BGR16((r),(g),(b)); }
+
+
+
+/* Write a horizontal span of RGBA color pixels with a boolean mask. */
+static void write_rgba_span_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLuint i;
+ LPWORD lpw;
+
+ (void) ctx;
+
+ y=FLIP(y);
+ lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ lpw[i] = BGR16(rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ *lpw++ = BGR16(rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP]);
+ }
+}
+
+
+/* Write a horizontal span of RGB color pixels with a boolean mask. */
+static void write_rgb_span_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3],
+ const GLubyte mask[] )
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ GLuint i;
+ LPWORD lpw;
+
+ (void) ctx;
+
+ y=FLIP(y);
+ lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ lpw[i] = BGR16(rgb[i][RCOMP], rgb[i][GCOMP],
+ rgb[i][BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ *lpw++ = BGR16(rgb[i][RCOMP], rgb[i][GCOMP],
+ rgb[i][BCOMP]);
+ }
+}
+
+/*
+ * Write a horizontal span of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_span_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ LPWORD lpw;
+ WORD pixel;
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ (void) ctx;
+ lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ y=FLIP(y);
+ pixel = BGR16(color[RCOMP], color[GCOMP], color[BCOMP]);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ lpw[i] = pixel;
+ }
+ else
+ for (i=0; i<n; i++)
+ *lpw++ = pixel;
+
+}
+
+/* Write an array of RGBA pixels with a boolean mask. */
+static void write_rgba_pixels_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte rgba[][4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ (void) ctx;
+ for (i=0; i<n; i++)
+ if (mask[i])
+ WMSETPIXEL16(pwfb, FLIP(y[i]), x[i],
+ rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+}
+
+/*
+ * Write an array of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_pixels_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const GLchan color[4],
+ const GLubyte mask[])
+{
+ GLuint i;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+ (void) ctx;
+ for (i=0; i<n; i++)
+ if (mask[i])
+ WMSETPIXEL16(pwfb, FLIP(y[i]),x[i],color[RCOMP],
+ color[GCOMP], color[BCOMP]);
+}
+
+/* Read a horizontal span of color pixels. */
+static void read_rgba_span_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4] )
+{
+ GLuint i, pixel;
+ LPWORD lpw;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+
+ y = FLIP(y);
+ lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y)) + x;
+ for (i=0; i<n; i++) {
+ pixel = lpw[i];
+ /* Windows uses 5,5,5 for 16-bit */
+ rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;
+ rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;
+ rgba[i][BCOMP] = (pixel & 0x001f) << 3;
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+/* Read an array of color pixels. */
+static void read_rgba_pixels_16(const struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4])
+{
+ GLuint i, pixel;
+ LPWORD lpw;
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(ctx->DrawBuffer);
+
+ for (i=0; i<n; i++) {
+ GLint y2 = FLIP(y[i]);
+ lpw = ((LPWORD)(pwfb->pbPixels + pwfb->ScanWidth * y2)) + x[i];
+ pixel = *lpw;
+ /* Windows uses 5,5,5 for 16-bit */
+ rgba[i][RCOMP] = (pixel & 0x7c00) >> 7;
+ rgba[i][GCOMP] = (pixel & 0x03e0) >> 2;
+ rgba[i][BCOMP] = (pixel & 0x001f) << 3;
+ rgba[i][ACOMP] = 255;
+ }
+}
+
+
+
+
+/**********************************************************************/
+/***** BUFFER Functions *****/
+/**********************************************************************/
+
+
+
+
+static void
+wmesa_delete_renderbuffer(struct gl_renderbuffer *rb)
+{
+ free(rb);
+}
+
+
+/**
+ * This is called by Mesa whenever it determines that the window size
+ * has changed. Do whatever's needed to cope with that.
+ */
+static GLboolean
+wmesa_renderbuffer_storage(struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLenum internalFormat,
+ GLuint width,
+ GLuint height)
+{
+ rb->Width = width;
+ rb->Height = height;
+ return GL_TRUE;
+}
+
+
+/**
+ * Plug in the Get/PutRow/Values functions for a renderbuffer depending
+ * on if we're drawing to the front or back color buffer.
+ */
+void wmesa_set_renderbuffer_funcs(struct gl_renderbuffer *rb, int pixelformat,
+ int cColorBits, int double_buffer)
+{
+ if (double_buffer) {
+ /* back buffer */
+ /* Picking the correct span functions is important because
+ * the DIB was allocated with the indicated depth. */
+ switch(pixelformat) {
+ case PF_5R6G5B:
+ rb->PutRow = write_rgba_span_16;
+ rb->PutRowRGB = write_rgb_span_16;
+ rb->PutMonoRow = write_mono_rgba_span_16;
+ rb->PutValues = write_rgba_pixels_16;
+ rb->PutMonoValues = write_mono_rgba_pixels_16;
+ rb->GetRow = read_rgba_span_16;
+ rb->GetValues = read_rgba_pixels_16;
+ break;
+ case PF_8R8G8B:
+ if (cColorBits == 24)
+ {
+ rb->PutRow = write_rgba_span_24;
+ rb->PutRowRGB = write_rgb_span_24;
+ rb->PutMonoRow = write_mono_rgba_span_24;
+ rb->PutValues = write_rgba_pixels_24;
+ rb->PutMonoValues = write_mono_rgba_pixels_24;
+ rb->GetRow = read_rgba_span_24;
+ rb->GetValues = read_rgba_pixels_24;
+ }
+ else
+ {
+ rb->PutRow = write_rgba_span_32;
+ rb->PutRowRGB = write_rgb_span_32;
+ rb->PutMonoRow = write_mono_rgba_span_32;
+ rb->PutValues = write_rgba_pixels_32;
+ rb->PutMonoValues = write_mono_rgba_pixels_32;
+ rb->GetRow = read_rgba_span_32;
+ rb->GetValues = read_rgba_pixels_32;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ else {
+ /* front buffer (actual Windows window) */
+ rb->PutRow = write_rgba_span_front;
+ rb->PutRowRGB = write_rgb_span_front;
+ rb->PutMonoRow = write_mono_rgba_span_front;
+ rb->PutValues = write_rgba_pixels_front;
+ rb->PutMonoValues = write_mono_rgba_pixels_front;
+ rb->GetRow = read_rgba_span_front;
+ rb->GetValues = read_rgba_pixels_front;
+ }
+}
+
+/**
+ * Called by ctx->Driver.ResizeBuffers()
+ * Resize the front/back colorbuffers to match the latest window size.
+ */
+static void
+wmesa_resize_buffers(struct gl_context *ctx, struct gl_framebuffer *buffer,
+ GLuint width, GLuint height)
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_framebuffer(buffer);
+
+ if (pwfb->Base.Width != width || pwfb->Base.Height != height) {
+ /* Realloc back buffer */
+ if (ctx->Visual.doubleBufferMode == 1) {
+ wmDeleteBackingStore(pwfb);
+ wmCreateBackingStore(pwfb, width, height);
+ }
+ }
+ _mesa_resize_framebuffer(ctx, buffer, width, height);
+}
+
+
+/**
+ * Called by glViewport.
+ * This is a good time for us to poll the current window size and adjust
+ * our renderbuffers to match the current window size.
+ * Remember, we have no opportunity to respond to conventional
+ * resize events since the driver has no event loop.
+ * Thus, we poll.
+ * MakeCurrent also ends up making a call here, so that ensures
+ * we get the viewport set correctly, even if the app does not call
+ * glViewport and relies on the defaults.
+ */
+static void wmesa_viewport(struct gl_context *ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height)
+{
+ WMesaContext pwc = wmesa_context(ctx);
+ GLuint new_width, new_height;
+
+ wmesa_get_buffer_size(ctx->WinSysDrawBuffer, &new_width, &new_height);
+
+ /**
+ * Resize buffers if the window size changed.
+ */
+ wmesa_resize_buffers(ctx, ctx->WinSysDrawBuffer, new_width, new_height);
+ ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */
+}
+
+
+
+
+/**
+ * Called when the driver should update it's state, based on the new_state
+ * flags.
+ */
+static void wmesa_update_state(struct gl_context *ctx, GLuint new_state)
+{
+ _swrast_InvalidateState(ctx, new_state);
+ _swsetup_InvalidateState(ctx, new_state);
+ _vbo_InvalidateState(ctx, new_state);
+ _tnl_InvalidateState(ctx, new_state);
+
+ /* TODO - This code is not complete yet because I
+ * don't know what to do for all state updates.
+ */
+
+ if (new_state & _NEW_BUFFERS) {
+ }
+}
+
+
+
+
+
+/**********************************************************************/
+/***** WMESA Functions *****/
+/**********************************************************************/
+
+WMesaContext WMesaCreateContext(HDC hDC,
+ HPALETTE* Pal,
+ GLboolean rgb_flag,
+ GLboolean db_flag,
+ GLboolean alpha_flag)
+{
+ WMesaContext c;
+ struct dd_function_table functions;
+ GLint red_bits, green_bits, blue_bits, alpha_bits;
+ struct gl_context *ctx;
+ struct gl_config *visual;
+
+ (void) Pal;
+
+ /* Indexed mode not supported */
+ if (!rgb_flag)
+ return NULL;
+
+ /* Allocate wmesa context */
+ c = CALLOC_STRUCT(wmesa_context);
+ if (!c)
+ return NULL;
+
+#if 0
+ /* I do not understand this contributed code */
+ /* Support memory and device contexts */
+ if(WindowFromDC(hDC) != NULL) {
+ c->hDC = GetDC(WindowFromDC(hDC)); /* huh ???? */
+ }
+ else {
+ c->hDC = hDC;
+ }
+#else
+ c->hDC = hDC;
+#endif
+
+ /* Get data for visual */
+ /* Dealing with this is actually a bit of overkill because Mesa will end
+ * up treating all color component size requests less than 8 by using
+ * a single byte per channel. In addition, the interface to the span
+ * routines passes colors as an entire byte per channel anyway, so there
+ * is nothing to be saved by telling the visual to be 16 bits if the device
+ * is 16 bits. That is, Mesa is going to compute colors down to 8 bits per
+ * channel anyway.
+ * But we go through the motions here anyway.
+ */
+ switch (GetDeviceCaps(c->hDC, BITSPIXEL)) {
+ case 16:
+ red_bits = green_bits = blue_bits = 5;
+ alpha_bits = 0;
+ break;
+ default:
+ red_bits = green_bits = blue_bits = 8;
+ alpha_bits = 8;
+ break;
+ }
+ /* Create visual based on flags */
+ visual = _mesa_create_visual(db_flag, /* db_flag */
+ GL_FALSE, /* stereo */
+ red_bits, green_bits, blue_bits, /* color RGB */
+ alpha_flag ? alpha_bits : 0, /* color A */
+ DEFAULT_SOFTWARE_DEPTH_BITS, /* depth_bits */
+ 8, /* stencil_bits */
+ 16,16,16, /* accum RGB */
+ alpha_flag ? 16 : 0, /* accum A */
+ 1); /* num samples */
+
+ if (!visual) {
+ free(c);
+ return NULL;
+ }
+
+ /* Set up driver functions */
+ _mesa_init_driver_functions(&functions);
+ functions.GetString = wmesa_get_string;
+ functions.UpdateState = wmesa_update_state;
+ functions.GetBufferSize = wmesa_get_buffer_size;
+ functions.Flush = wmesa_flush;
+ functions.Clear = clear;
+ functions.ClearColor = clear_color;
+ functions.ResizeBuffers = wmesa_resize_buffers;
+ functions.Viewport = wmesa_viewport;
+
+ /* initialize the Mesa context data */
+ ctx = &c->gl_ctx;
+ _mesa_initialize_context(ctx, API_OPENGL, visual,
+ NULL, &functions, (void *)c);
+
+ /* visual no longer needed - it was copied by _mesa_initialize_context() */
+ _mesa_destroy_visual(visual);
+
+ _mesa_enable_sw_extensions(ctx);
+ _mesa_enable_1_3_extensions(ctx);
+ _mesa_enable_1_4_extensions(ctx);
+ _mesa_enable_1_5_extensions(ctx);
+ _mesa_enable_2_0_extensions(ctx);
+ _mesa_enable_2_1_extensions(ctx);
+
+ _mesa_meta_init(ctx);
+
+ /* Initialize the software rasterizer and helper modules. */
+ if (!_swrast_CreateContext(ctx) ||
+ !_vbo_CreateContext(ctx) ||
+ !_tnl_CreateContext(ctx) ||
+ !_swsetup_CreateContext(ctx)) {
+ _mesa_free_context_data(ctx);
+ free(c);
+ return NULL;
+ }
+ _swsetup_Wakeup(ctx);
+ TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
+
+ return c;
+}
+
+
+void WMesaDestroyContext( WMesaContext pwc )
+{
+ struct gl_context *ctx = &pwc->gl_ctx;
+ WMesaFramebuffer pwfb;
+ GET_CURRENT_CONTEXT(cur_ctx);
+
+ if (cur_ctx == ctx) {
+ /* unbind current if deleting current context */
+ WMesaMakeCurrent(NULL, NULL);
+ }
+
+ /* clean up frame buffer resources */
+ pwfb = wmesa_lookup_framebuffer(pwc->hDC);
+ if (pwfb) {
+ if (ctx->Visual.doubleBufferMode == 1)
+ wmDeleteBackingStore(pwfb);
+ wmesa_free_framebuffer(pwc->hDC);
+ }
+
+ /* Release for device, not memory contexts */
+ if (WindowFromDC(pwc->hDC) != NULL)
+ {
+ ReleaseDC(WindowFromDC(pwc->hDC), pwc->hDC);
+ }
+ DeleteObject(pwc->clearPen);
+ DeleteObject(pwc->clearBrush);
+
+ _mesa_meta_free(ctx);
+
+ _swsetup_DestroyContext(ctx);
+ _tnl_DestroyContext(ctx);
+ _vbo_DestroyContext(ctx);
+ _swrast_DestroyContext(ctx);
+
+ _mesa_free_context_data(ctx);
+ free(pwc);
+}
+
+
+/**
+ * Create a new color renderbuffer.
+ */
+struct gl_renderbuffer *
+wmesa_new_renderbuffer(void)
+{
+ struct gl_renderbuffer *rb = CALLOC_STRUCT(gl_renderbuffer);
+ if (!rb)
+ return NULL;
+
+ _mesa_init_renderbuffer(rb, (GLuint)0);
+
+ rb->_BaseFormat = GL_RGBA;
+ rb->InternalFormat = GL_RGBA;
+ rb->DataType = CHAN_TYPE;
+ rb->Delete = wmesa_delete_renderbuffer;
+ rb->AllocStorage = wmesa_renderbuffer_storage;
+ return rb;
+}
+
+
+void WMesaMakeCurrent(WMesaContext c, HDC hdc)
+{
+ WMesaFramebuffer pwfb;
+
+ {
+ /* return if already current */
+ GET_CURRENT_CONTEXT(ctx);
+ WMesaContext pwc = wmesa_context(ctx);
+ if (pwc && c == pwc && pwc->hDC == hdc)
+ return;
+ }
+
+ pwfb = wmesa_lookup_framebuffer(hdc);
+
+ /* Lazy creation of framebuffers */
+ if (c && !pwfb && hdc) {
+ struct gl_renderbuffer *rb;
+ struct gl_config *visual = &c->gl_ctx.Visual;
+ GLuint width, height;
+
+ get_window_size(hdc, &width, &height);
+
+ c->clearPen = CreatePen(PS_SOLID, 1, 0);
+ c->clearBrush = CreateSolidBrush(0);
+
+ pwfb = wmesa_new_framebuffer(hdc, visual);
+
+ /* Create back buffer if double buffered */
+ if (visual->doubleBufferMode == 1) {
+ wmCreateBackingStore(pwfb, width, height);
+ }
+
+ /* make render buffers */
+ if (visual->doubleBufferMode == 1) {
+ rb = wmesa_new_renderbuffer();
+ _mesa_add_renderbuffer(&pwfb->Base, BUFFER_BACK_LEFT, rb);
+ wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 1);
+ }
+ rb = wmesa_new_renderbuffer();
+ _mesa_add_renderbuffer(&pwfb->Base, BUFFER_FRONT_LEFT, rb);
+ wmesa_set_renderbuffer_funcs(rb, pwfb->pixelformat, pwfb->cColorBits, 0);
+
+ /* Let Mesa own the Depth, Stencil, and Accum buffers */
+ _mesa_add_soft_renderbuffers(&pwfb->Base,
+ GL_FALSE, /* color */
+ visual->depthBits > 0,
+ visual->stencilBits > 0,
+ visual->accumRedBits > 0,
+ visual->alphaBits >0,
+ GL_FALSE);
+ }
+
+ if (c && pwfb)
+ _mesa_make_current(&c->gl_ctx, &pwfb->Base, &pwfb->Base);
+ else
+ _mesa_make_current(NULL, NULL, NULL);
+}
+
+
+void WMesaSwapBuffers( HDC hdc )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ WMesaContext pwc = wmesa_context(ctx);
+ WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(hdc);
+
+ if (!pwfb) {
+ _mesa_problem(NULL, "wmesa: swapbuffers on unknown hdc");
+ return;
+ }
+
+ /* If we're swapping the buffer associated with the current context
+ * we have to flush any pending rendering commands first.
+ */
+ if (pwc->hDC == hdc) {
+ _mesa_notifySwapBuffers(ctx);
+
+ BitBlt(pwfb->hDC, 0, 0, pwfb->Base.Width, pwfb->Base.Height,
+ pwfb->dib_hDC, 0, 0, SRCCOPY);
+ }
+ else {
+ /* XXX for now only allow swapping current window */
+ _mesa_problem(NULL, "wmesa: can't swap non-current window");
+ }
+}
+
+void WMesaShareLists(WMesaContext ctx_to_share, WMesaContext ctx)
+{
+ _mesa_share_state(&ctx->gl_ctx, &ctx_to_share->gl_ctx);
+}
+
diff --git a/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c b/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c
index fabce4c0b..9aedd2e3c 100644
--- a/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c
+++ b/mesalib/src/mesa/drivers/windows/gldirect/dglcontext.c
@@ -1,2212 +1,2212 @@
-/****************************************************************************
-*
-* Mesa 3-D graphics library
-* Direct3D Driver Interface
-*
-* ========================================================================
-*
-* Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
-*
-* Permission is hereby granted, free of charge, to any person obtaining a
-* copy of this software and associated documentation files (the "Software"),
-* to deal in the Software without restriction, including without limitation
-* the rights to use, copy, modify, merge, publish, distribute, sublicense,
-* and/or sell copies of the Software, and to permit persons to whom the
-* Software is furnished to do so, subject to the following conditions:
-*
-* The above copyright notice and this permission notice shall be included
-* in all copies or substantial portions of the Software.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-* SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
-* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-* SOFTWARE.
-*
-* ======================================================================
-*
-* Language: ANSI C
-* Environment: Windows 9x (Win32)
-*
-* Description: Context handling.
-*
-****************************************************************************/
-
-#include "dglcontext.h"
-
-// Get compile errors without this. KeithH
-//#include "scitech.h" // ibool, etc.
-
-#ifdef _USE_GLD3_WGL
-#include "gld_driver.h"
-
-extern void _gld_mesa_warning(struct gl_context *, char *);
-extern void _gld_mesa_fatal(struct gl_context *, char *);
-#endif // _USE_GLD3_WGL
-
-// TODO: Clean out old DX6-specific code from GLD 2.x CAD driver
-// if it is no longer being built as part of GLDirect. (DaveM)
-
-// ***********************************************************************
-
-#define GLDERR_NONE 0
-#define GLDERR_MEM 1
-#define GLDERR_DDRAW 2
-#define GLDERR_D3D 3
-#define GLDERR_BPP 4
-
-char szResourceWarning[] =
-"GLDirect does not have enough video memory resources\n"
-"to support the requested OpenGL rendering context.\n\n"
-"You may have to reduce the current display resolution\n"
-"to obtain satisfactory OpenGL performance.\n";
-
-char szDDrawWarning[] =
-"GLDirect is unable to initialize DirectDraw for the\n"
-"requested OpenGL rendering context.\n\n"
-"You will have to check the DirectX control panel\n"
-"for further information.\n";
-
-char szD3DWarning[] =
-"GLDirect is unable to initialize Direct3D for the\n"
-"requested OpenGL rendering context.\n\n"
-"You may have to change the display mode resolution\n"
-"color depth or check the DirectX control panel for\n"
-"further information.\n";
-
-char szBPPWarning[] =
-"GLDirect is unable to use the selected color depth for\n"
-"the requested OpenGL rendering context.\n\n"
-"You will have to change the display mode resolution\n"
-"color depth with the Display Settings control panel.\n";
-
-int nContextError = GLDERR_NONE;
-
-// ***********************************************************************
-
-#define VENDORID_ATI 0x1002
-
-static DWORD devATIRagePro[] = {
- 0x4742, // 3D RAGE PRO BGA AGP 1X/2X
- 0x4744, // 3D RAGE PRO BGA AGP 1X only
- 0x4749, // 3D RAGE PRO BGA PCI 33 MHz
- 0x4750, // 3D RAGE PRO PQFP PCI 33 MHz
- 0x4751, // 3D RAGE PRO PQFP PCI 33 MHz limited 3D
- 0x4C42, // 3D RAGE LT PRO BGA-312 AGP 133 MHz
- 0x4C44, // 3D RAGE LT PRO BGA-312 AGP 66 MHz
- 0x4C49, // 3D RAGE LT PRO BGA-312 PCI 33 MHz
- 0x4C50, // 3D RAGE LT PRO BGA-256 PCI 33 MHz
- 0x4C51, // 3D RAGE LT PRO BGA-256 PCI 33 MHz limited 3D
-};
-
-static DWORD devATIRageIIplus[] = {
- 0x4755, // 3D RAGE II+
- 0x4756, // 3D RAGE IIC PQFP PCI
- 0x4757, // 3D RAGE IIC BGA AGP
- 0x475A, // 3D RAGE IIC PQFP AGP
- 0x4C47, // 3D RAGE LT-G
-};
-
-// ***********************************************************************
-
-#ifndef _USE_GLD3_WGL
-extern DGL_mesaFuncs mesaFuncs;
-#endif
-
-extern DWORD dwLogging;
-
-#ifdef GLD_THREADS
-#pragma message("compiling DGLCONTEXT.C vars for multi-threaded support")
-CRITICAL_SECTION CriticalSection; // for serialized access
-DWORD dwTLSCurrentContext = 0xFFFFFFFF; // TLS index for current context
-DWORD dwTLSPixelFormat = 0xFFFFFFFF; // TLS index for current pixel format
-#endif
-HGLRC iCurrentContext = 0; // Index of current context (static)
-BOOL bContextReady = FALSE; // Context state ready ?
-
-DGL_ctx ctxlist[DGL_MAX_CONTEXTS]; // Context list
-
-// ***********************************************************************
-
-static BOOL bHaveWin95 = FALSE;
-static BOOL bHaveWinNT = FALSE;
-static BOOL bHaveWin2K = FALSE;
-
-/****************************************************************************
-REMARKS:
-Detect the installed OS type.
-****************************************************************************/
-static void DetectOS(void)
-{
- OSVERSIONINFO VersionInformation;
- LPOSVERSIONINFO lpVersionInformation = &VersionInformation;
-
- VersionInformation.dwOSVersionInfoSize = sizeof(VersionInformation);
-
- GetVersionEx(lpVersionInformation);
-
- switch (VersionInformation.dwPlatformId) {
- case VER_PLATFORM_WIN32_WINDOWS:
- bHaveWin95 = TRUE;
- bHaveWinNT = FALSE;
- bHaveWin2K = FALSE;
- break;
- case VER_PLATFORM_WIN32_NT:
- bHaveWin95 = FALSE;
- if (VersionInformation.dwMajorVersion <= 4) {
- bHaveWinNT = TRUE;
- bHaveWin2K = FALSE;
- }
- else {
- bHaveWinNT = FALSE;
- bHaveWin2K = TRUE;
- }
- break;
- case VER_PLATFORM_WIN32s:
- bHaveWin95 = FALSE;
- bHaveWinNT = FALSE;
- bHaveWin2K = FALSE;
- break;
- }
-}
-
-// ***********************************************************************
-
-HWND hWndEvent = NULL; // event monitor window
-HWND hWndLastActive = NULL; // last active client window
-LONG __stdcall GLD_EventWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);
-
-// ***********************************************************************
-
-// Checks if the HGLRC is valid in range of context list.
-BOOL dglIsValidContext(
- HGLRC a)
-{
- return ((int)a > 0 && (int)a <= DGL_MAX_CONTEXTS);
-}
-
-// ***********************************************************************
-
-// Convert a HGLRC to a pointer into the context list.
-DGL_ctx* dglGetContextAddress(
- const HGLRC a)
-{
- if (dglIsValidContext(a))
- return &ctxlist[(int)a-1];
- return NULL;
-}
-
-// ***********************************************************************
-
-// Return the current HGLRC (however it may be stored for multi-threading).
-HGLRC dglGetCurrentContext(void)
-{
-#ifdef GLD_THREADS
- HGLRC hGLRC;
- // load from thread-specific instance
- if (glb.bMultiThreaded) {
- // protect against calls from arbitrary threads
- __try {
- hGLRC = (HGLRC)TlsGetValue(dwTLSCurrentContext);
- }
- __except(EXCEPTION_EXECUTE_HANDLER) {
- hGLRC = iCurrentContext;
- }
- }
- // load from global static var
- else {
- hGLRC = iCurrentContext;
- }
- return hGLRC;
-#else
- return iCurrentContext;
-#endif
-}
-
-// ***********************************************************************
-
-// Set the current HGLRC (however it may be stored for multi-threading).
-void dglSetCurrentContext(HGLRC hGLRC)
-{
-#ifdef GLD_THREADS
- // store in thread-specific instance
- if (glb.bMultiThreaded) {
- // protect against calls from arbitrary threads
- __try {
- TlsSetValue(dwTLSCurrentContext, (LPVOID)hGLRC);
- }
- __except(EXCEPTION_EXECUTE_HANDLER) {
- iCurrentContext = hGLRC;
- }
- }
- // store in global static var
- else {
- iCurrentContext = hGLRC;
- }
-#else
- iCurrentContext = hGLRC;
-#endif
-}
-
-// ***********************************************************************
-
-// Return the current HDC only for a currently active HGLRC.
-HDC dglGetCurrentDC(void)
-{
- HGLRC hGLRC;
- DGL_ctx* lpCtx;
-
- hGLRC = dglGetCurrentContext();
- if (hGLRC) {
- lpCtx = dglGetContextAddress(hGLRC);
- return lpCtx->hDC;
- }
- return 0;
-}
-
-// ***********************************************************************
-
-void dglInitContextState()
-{
- int i;
- WNDCLASS wc;
-
-#ifdef GLD_THREADS
- // Allocate thread local storage indexes for current context and pixel format
- dwTLSCurrentContext = TlsAlloc();
- dwTLSPixelFormat = TlsAlloc();
-#endif
-
- dglSetCurrentContext(NULL); // No current rendering context
-
- // Clear all context data
- ZeroMemory(ctxlist, sizeof(ctxlist[0]) * DGL_MAX_CONTEXTS);
-
- for (i=0; i<DGL_MAX_CONTEXTS; i++)
- ctxlist[i].bAllocated = FALSE; // Flag context as unused
-
- // This section of code crashes the dll in circumstances where the app
- // creates and destroys contexts.
-/*
- // Register the class for our event monitor window
- wc.style = 0;
- wc.lpfnWndProc = GLD_EventWndProc;
- wc.cbClsExtra = 0;
- wc.cbWndExtra = 0;
- wc.hInstance = GetModuleHandle(NULL);
- wc.hIcon = LoadIcon(GetModuleHandle(NULL), IDI_APPLICATION);
- wc.hCursor = LoadCursor(NULL, IDC_ARROW);
- wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
- wc.lpszMenuName = NULL;
- wc.lpszClassName = "GLDIRECT";
- RegisterClass(&wc);
-
- // Create the non-visible window to monitor all broadcast messages
- hWndEvent = CreateWindowEx(
- WS_EX_TOOLWINDOW,"GLDIRECT","GLDIRECT",WS_POPUP,
- 0,0,0,0,
- NULL,NULL,GetModuleHandle(NULL),NULL);
-*/
-
-#ifdef GLD_THREADS
- // Create a critical section object for serializing access to
- // DirectDraw and DDStereo create/destroy functions in multiple threads
- if (glb.bMultiThreaded)
- InitializeCriticalSection(&CriticalSection);
-#endif
-
- // Context state is now initialized and ready
- bContextReady = TRUE;
-}
-
-// ***********************************************************************
-
-void dglDeleteContextState()
-{
- int i;
- static BOOL bOnceIsEnough = FALSE;
-
- // Only call once, from either DGL_exitDriver(), or DLL_PROCESS_DETACH
- if (bOnceIsEnough)
- return;
- bOnceIsEnough = TRUE;
-
- for (i=0; i<DGL_MAX_CONTEXTS; i++) {
- if (ctxlist[i].bAllocated == TRUE) {
- ddlogPrintf(DDLOG_WARN, "** Context %i not deleted - cleaning up.", (i+1));
- dglDeleteContext((HGLRC)(i+1));
- }
- }
-
- // Context state is no longer ready
- bContextReady = FALSE;
-
- // If executed when DLL unloads, DDraw objects may be invalid.
- // So catch any page faults with this exception handler.
-__try {
-
- // Release final DirectDraw interfaces
- if (glb.bDirectDrawPersistant) {
-// RELEASE(glb.lpGlobalPalette);
-// RELEASE(glb.lpDepth4);
-// RELEASE(glb.lpBack4);
-// RELEASE(glb.lpPrimary4);
-// RELEASE(glb.lpDD4);
- }
-}
-__except(EXCEPTION_EXECUTE_HANDLER) {
- ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContextState.");
-}
-
- // Destroy our event monitor window
- if (hWndEvent) {
- DestroyWindow(hWndEvent);
- hWndEvent = hWndLastActive = NULL;
- }
-
-#ifdef GLD_THREADS
- // Destroy the critical section object
- if (glb.bMultiThreaded)
- DeleteCriticalSection(&CriticalSection);
-
- // Release thread local storage indexes for current HGLRC and pixel format
- TlsFree(dwTLSPixelFormat);
- TlsFree(dwTLSCurrentContext);
-#endif
-}
-
-// ***********************************************************************
-
-// Application Window message handler interception
-static LONG __stdcall dglWndProc(
- HWND hwnd,
- UINT msg,
- WPARAM wParam,
- LPARAM lParam)
-{
- DGL_ctx* lpCtx = NULL;
- LONG lpfnWndProc = 0L;
- int i;
- HGLRC hGLRC;
- RECT rect;
- PAINTSTRUCT ps;
- BOOL bQuit = FALSE;
- BOOL bMain = FALSE;
- LONG rc;
-
- // Get the window's message handler *before* it is unhooked in WM_DESTROY
-
- // Is this the main window?
- if (hwnd == glb.hWndActive) {
- bMain = TRUE;
- lpfnWndProc = glb.lpfnWndProc;
- }
- // Search for DGL context matching window handle
- for (i=0; i<DGL_MAX_CONTEXTS; i++) {
- if (ctxlist[i].hWnd == hwnd) {
- lpCtx = &ctxlist[i];
- lpfnWndProc = lpCtx->lpfnWndProc;
- break;
- }
- }
- // Not one of ours...
- if (!lpfnWndProc)
- return DefWindowProc(hwnd, msg, wParam, lParam);
-
- // Intercept messages amd process *before* passing on to window
- switch (msg) {
-#ifdef _USE_GLD3_WGL
- case WM_DISPLAYCHANGE:
- glb.bPixelformatsDirty = TRUE;
- break;
-#endif
- case WM_ACTIVATEAPP:
- glb.bAppActive = (BOOL)wParam;
- ddlogPrintf(DDLOG_INFO, "Calling app has been %s", glb.bAppActive ? "activated" : "de-activated");
- break;
- case WM_ERASEBKGND:
- // Eat the GDI erase event for the GL window
- if (!lpCtx || !lpCtx->bHasBeenCurrent)
- break;
- lpCtx->bGDIEraseBkgnd = TRUE;
- return TRUE;
- case WM_PAINT:
- // Eat the invalidated update region if render scene is in progress
- if (!lpCtx || !lpCtx->bHasBeenCurrent)
- break;
- if (lpCtx->bFrameStarted) {
- if (GetUpdateRect(hwnd, &rect, FALSE)) {
- BeginPaint(hwnd, &ps);
- EndPaint(hwnd, &ps);
- ValidateRect(hwnd, &rect);
- return TRUE;
- }
- }
- break;
- }
- // Call the appropriate window message handler
- rc = CallWindowProc((WNDPROC)lpfnWndProc, hwnd, msg, wParam, lParam);
-
- // Intercept messages and process *after* passing on to window
- switch (msg) {
- case WM_QUIT:
- case WM_DESTROY:
- bQuit = TRUE;
- if (lpCtx && lpCtx->bAllocated) {
- ddlogPrintf(DDLOG_WARN, "WM_DESTROY detected for HWND=%X, HDC=%X, HGLRC=%d", hwnd, lpCtx->hDC, i+1);
- dglDeleteContext((HGLRC)(i+1));
- }
- break;
-#if 0
- case WM_SIZE:
- // Resize surfaces to fit window but not viewport (in case app did not bother)
- if (!lpCtx || !lpCtx->bHasBeenCurrent)
- break;
- w = LOWORD(lParam);
- h = HIWORD(lParam);
- if (lpCtx->dwWidth < w || lpCtx->dwHeight < h) {
- if (!dglWglResizeBuffers(lpCtx->glCtx, TRUE))
- dglWglResizeBuffers(lpCtx->glCtx, FALSE);
- }
- break;
-#endif
- }
-
- // If the main window is quitting, then so should we...
- if (bMain && bQuit) {
- ddlogPrintf(DDLOG_SYSTEM, "shutting down after WM_DESTROY detected for main HWND=%X", hwnd);
- dglDeleteContextState();
- dglExitDriver();
- }
-
- return rc;
-}
-
-// ***********************************************************************
-
-// Driver Window message handler
-static LONG __stdcall GLD_EventWndProc(
- HWND hwnd,
- UINT msg,
- WPARAM wParam,
- LPARAM lParam)
-{
- switch (msg) {
- // May be sent by splash screen dialog on exit
- case WM_ACTIVATE:
- if (LOWORD(wParam) == WA_ACTIVE && glb.hWndActive) {
- SetForegroundWindow(glb.hWndActive);
- return 0;
- }
- break;
- }
- return DefWindowProc(hwnd, msg, wParam, lParam);
-}
-
-// ***********************************************************************
-
-// Intercepted Keyboard handler for detecting hot keys.
-LRESULT CALLBACK dglKeyProc(
- int code,
- WPARAM wParam,
- LPARAM lParam)
-{
- HWND hWnd, hWndFrame;
- HGLRC hGLRC = NULL;
- DGL_ctx* lpCtx = NULL;
- int cmd = 0, dx1 = 0, dx2 = 0, i;
- static BOOL bAltPressed = FALSE;
- static BOOL bCtrlPressed = FALSE;
- static BOOL bShiftPressed = FALSE;
- RECT r, rf, rc;
- POINT pt;
- BOOL bForceReshape = FALSE;
-
- return CallNextHookEx(hKeyHook, code, wParam, lParam);
-}
-
-// ***********************************************************************
-
-HWND hWndMatch;
-
-// Window handle enumeration procedure.
-BOOL CALLBACK dglEnumChildProc(
- HWND hWnd,
- LPARAM lParam)
-{
- RECT rect;
-
- // Find window handle with matching client rect.
- GetClientRect(hWnd, &rect);
- if (EqualRect(&rect, (RECT*)lParam)) {
- hWndMatch = hWnd;
- return FALSE;
- }
- // Continue with next child window.
- return TRUE;
-}
-
-// ***********************************************************************
-
-// Find window handle with matching client rect.
-HWND dglFindWindowRect(
- RECT* pRect)
-{
- hWndMatch = NULL;
- EnumChildWindows(GetForegroundWindow(), dglEnumChildProc, (LPARAM)pRect);
- return hWndMatch;
-}
-
-// ***********************************************************************
-#ifndef _USE_GLD3_WGL
-void dglChooseDisplayMode(
- DGL_ctx *lpCtx)
-{
- // Note: Choose an exact match if possible.
-
- int i;
- DWORD area;
- DWORD bestarea;
- DDSURFACEDESC2 *lpDDSD = NULL; // Mode list pointer
- DDSURFACEDESC2 *lpBestDDSD = NULL; // Pointer to best
-
- lpDDSD = glb.lpDisplayModes;
- for (i=0; i<glb.nDisplayModeCount; i++, lpDDSD++) {
- if ((lpDDSD->dwWidth == lpCtx->dwWidth) &&
- (lpDDSD->dwHeight == lpCtx->dwHeight))
- goto matched; // Mode has been exactly matched
- // Choose modes that are larger in both dimensions than
- // the window, but smaller in area than the current best.
- if ( (lpDDSD->dwWidth >= lpCtx->dwWidth) &&
- (lpDDSD->dwHeight >= lpCtx->dwHeight))
- {
- if (lpBestDDSD == NULL) {
- lpBestDDSD = lpDDSD;
- bestarea = lpDDSD->dwWidth * lpDDSD->dwHeight;
- continue;
- }
- area = lpDDSD->dwWidth * lpDDSD->dwHeight;
- if (area < bestarea) {
- lpBestDDSD = lpDDSD;
- bestarea = area;
- }
- }
- }
-
- // Safety check
- if (lpBestDDSD == NULL) {
- ddlogMessage(DDLOG_CRITICAL, "dglChooseDisplayMode");
- return;
- }
-
- lpCtx->dwModeWidth = lpBestDDSD->dwWidth;
- lpCtx->dwModeHeight = lpBestDDSD->dwHeight;
-matched:
- ddlogPrintf(DDLOG_INFO, "Matched (%ldx%ld) to (%ldx%ld)",
- lpCtx->dwWidth, lpCtx->dwHeight, lpCtx->dwModeWidth, lpCtx->dwModeHeight);
-}
-#endif // _USE_GLD3_WGL
-// ***********************************************************************
-
-static BOOL IsDevice(
- DWORD *lpDeviceIdList,
- DWORD dwDeviceId,
- int count)
-{
- int i;
-
- for (i=0; i<count; i++)
- if (dwDeviceId == lpDeviceIdList[i])
- return TRUE;
-
- return FALSE;
-}
-
-// ***********************************************************************
-
-void dglTestForBrokenCards(
- DGL_ctx *lpCtx)
-{
-#ifndef _GLD3
- DDDEVICEIDENTIFIER dddi; // DX6 device identifier
-
- // Sanity check.
- if (lpCtx == NULL) {
- // Testing for broken cards is sensitive area, so we don't want
- // anything saying "broken cards" in the error message. ;)
- ddlogMessage(DDLOG_ERROR, "Null context passed to TFBC\n");
- return;
- }
-
- if (lpCtx->lpDD4 == NULL) {
- // Testing for broken cards is sensitive area, so we don't want
- // anything saying "broken cards" in the error message. ;)
- ddlogMessage(DDLOG_ERROR, "Null DD4 passed to TFBC\n");
- return;
- }
-
- // Microsoft really fucked up with the GetDeviceIdentifier function
- // on Windows 2000, since it locks up on stock driers on the CD. Updated
- // drivers from vendors appear to work, but we can't identify the drivers
- // without this function!!! For now we skip these tests on Windows 2000.
- if ((GetVersion() & 0x80000000UL) == 0)
- return;
-
- // Obtain device info
- if (FAILED(IDirectDraw4_GetDeviceIdentifier(lpCtx->lpDD4, &dddi, 0)))
- return;
-
- // Useful info. Log it.
- ddlogPrintf(DDLOG_INFO, "DirectDraw: VendorId=0x%x, DeviceId=0x%x", dddi.dwVendorId, dddi.dwDeviceId);
-
- // Vendor 1: ATI
- if (dddi.dwVendorId == VENDORID_ATI) {
- // Test A: ATI Rage PRO
- if (IsDevice(devATIRagePro, dddi.dwDeviceId, sizeof(devATIRagePro)))
- glb.bUseMipmaps = FALSE;
- // Test B: ATI Rage II+
- if (IsDevice(devATIRageIIplus, dddi.dwDeviceId, sizeof(devATIRageIIplus)))
- glb.bEmulateAlphaTest = TRUE;
- }
-
- // Vendor 2: Matrox
- if (dddi.dwVendorId == 0x102B) {
- // Test: Matrox G400 stencil buffer support does not work for AutoCAD
- if (dddi.dwDeviceId == 0x0525) {
- lpCtx->lpPF->pfd.cStencilBits = 0;
- if (lpCtx->lpPF->iZBufferPF != -1) {
- glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitDepth = 0;
- glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitMask = 0;
- glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags &= ~DDPF_STENCILBUFFER;
- }
- }
- }
-#endif // _GLD3
-}
-
-// ***********************************************************************
-
-BOOL dglCreateContextBuffers(
- HDC a,
- DGL_ctx *lpCtx,
- BOOL bFallback)
-{
- HRESULT hResult;
-
- int i;
-// HGLRC hGLRC;
-// DGL_ctx* lpCtx;
-
-#ifndef _USE_GLD3_WGL
- DWORD dwFlags;
- DDSURFACEDESC2 ddsd2;
- DDSCAPS2 ddscaps2;
- LPDIRECTDRAWCLIPPER lpddClipper;
- D3DDEVICEDESC D3DHWDevDesc; // Direct3D Hardware description
- D3DDEVICEDESC D3DHELDevDesc; // Direct3D Hardware Emulation Layer
-#endif // _USE_GLD3_WGL
-
- float inv_aspect;
-
- GLenum bDoubleBuffer; // TRUE if double buffer required
- GLenum bDepthBuffer; // TRUE if depth buffer required
-
- const PIXELFORMATDESCRIPTOR *lpPFD = &lpCtx->lpPF->pfd;
-
- // Vars for Mesa visual
- DWORD dwDepthBits = 0;
- DWORD dwStencilBits = 0;
- DWORD dwAlphaBits = 0;
- DWORD bAlphaSW = GL_FALSE;
- DWORD bDouble = GL_FALSE;
-
- DDSURFACEDESC2 ddsd2DisplayMode;
- BOOL bFullScrnWin = FALSE; // fullscreen-size window ?
- DDBLTFX ddbltfx;
- DWORD dwMemoryType = (bFallback) ? DDSCAPS_SYSTEMMEMORY : glb.dwMemoryType;
- BOOL bBogusWindow = FALSE; // non-drawable window ?
- DWORD dwColorRef = 0; // GDI background color
- RECT rcDst; // GDI window rect
- POINT pt; // GDI window point
-
- // Palette used for creating default global palette
- PALETTEENTRY ppe[256];
-
-#ifndef _USE_GLD3_WGL
- // Vertex buffer description. Used for creation of vertex buffers
- D3DVERTEXBUFFERDESC vbufdesc;
-#endif // _USE_GLD3_WGL
-
-#define DDLOG_CRITICAL_OR_WARN (bFallback ? DDLOG_CRITICAL : DDLOG_WARN)
-
- ddlogPrintf(DDLOG_SYSTEM, "dglCreateContextBuffers for HDC=%X", a);
- nContextError = GLDERR_NONE;
-
-#ifdef GLD_THREADS
- // Serialize access to DirectDraw object creation or DDS start
- if (glb.bMultiThreaded)
- EnterCriticalSection(&CriticalSection);
-#endif
-
- // Check for back buffer
- bDoubleBuffer = GL_TRUE; //(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE;
- // Since we always do back buffering, check if we emulate front buffering
- lpCtx->EmulateSingle =
- (lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;
-#if 0 // Don't have to mimic MS OpenGL behavior for front-buffering (DaveM)
- lpCtx->EmulateSingle |=
- (lpPFD->dwFlags & PFD_SUPPORT_GDI) ? TRUE : FALSE;
-#endif
-
- // Check for depth buffer
- bDepthBuffer = (lpPFD->cDepthBits) ? GL_TRUE : GL_FALSE;
-
- lpCtx->bDoubleBuffer = bDoubleBuffer;
- lpCtx->bDepthBuffer = bDepthBuffer;
-
- // Set the Fullscreen flag for the context.
-// lpCtx->bFullscreen = glb.bFullscreen;
-
- // Obtain the dimensions of the rendering window
- lpCtx->hDC = a; // Cache DC
- lpCtx->hWnd = WindowFromDC(lpCtx->hDC);
- // Check for non-window DC = memory DC ?
- if (lpCtx->hWnd == NULL) {
- // bitmap memory contexts are always single-buffered
- lpCtx->EmulateSingle = TRUE;
- bBogusWindow = TRUE;
- ddlogPrintf(DDLOG_INFO, "Non-Window Memory Device Context");
- if (GetClipBox(lpCtx->hDC, &lpCtx->rcScreenRect) == ERROR) {
- ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglCreateContext\n");
- SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
- }
- }
- else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {
- bBogusWindow = TRUE;
- ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglCreateContext\n");
- SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
- }
- lpCtx->dwWidth = lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left;
- lpCtx->dwHeight = lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top;
-
- ddlogPrintf(DDLOG_INFO, "Input window %X: w=%i, h=%i",
- lpCtx->hWnd, lpCtx->dwWidth, lpCtx->dwHeight);
-
- // What if app only zeroes one dimension instead of both? (DaveM)
- if ( (lpCtx->dwWidth == 0) || (lpCtx->dwHeight == 0) ) {
- // Make the buffer size something sensible
- lpCtx->dwWidth = 8;
- lpCtx->dwHeight = 8;
- }
-
- // Set defaults
- lpCtx->dwModeWidth = lpCtx->dwWidth;
- lpCtx->dwModeHeight = lpCtx->dwHeight;
-/*
- // Find best display mode for fullscreen
- if (glb.bFullscreen || !glb.bPrimary) {
- dglChooseDisplayMode(lpCtx);
- }
-*/
- // Misc initialisation
- lpCtx->bCanRender = FALSE; // No rendering allowed yet
- lpCtx->bSceneStarted = FALSE;
- lpCtx->bFrameStarted = FALSE;
-
- // Detect OS (specifically 'Windows 2000' or 'Windows XP')
- DetectOS();
-
- // NOTE: WinNT not supported
- ddlogPrintf(DDLOG_INFO, "OS: %s", bHaveWin95 ? "Win9x" : (bHaveWin2K ? "Win2000/XP" : "Unsupported") );
-
- // Test for Fullscreen
- if (bHaveWin95) { // Problems with fullscreen on Win2K/XP
- if ((GetSystemMetrics(SM_CXSCREEN) == lpCtx->dwWidth) &&
- (GetSystemMetrics(SM_CYSCREEN) == lpCtx->dwHeight))
- {
- // Workaround for some apps that crash when going fullscreen.
- //lpCtx->bFullscreen = TRUE;
- }
-
- }
-
-#ifdef _USE_GLD3_WGL
- _gldDriver.CreateDrawable(lpCtx, glb.bDirectDrawPersistant, glb.bPersistantBuffers);
-#else
- // Check if DirectDraw has already been created by original GLRC (DaveM)
- if (glb.bDirectDrawPersistant && glb.bDirectDraw) {
- lpCtx->lpDD4 = glb.lpDD4;
- IDirectDraw4_AddRef(lpCtx->lpDD4);
- goto SkipDirectDrawCreate;
- }
-
- // Create DirectDraw object
- if (glb.bPrimary)
- hResult = DirectDrawCreate(NULL, &lpCtx->lpDD1, NULL);
- else {
- // A non-primary device is to be used.
- // Force context to be Fullscreen, secondary adaptors can not
- // be used in a window.
- hResult = DirectDrawCreate(&glb.ddGuid, &lpCtx->lpDD1, NULL);
- lpCtx->bFullscreen = TRUE;
- }
- if (FAILED(hResult)) {
- MessageBox(NULL, "Unable to initialize DirectDraw", "GLDirect", MB_OK);
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw interface", hResult);
- nContextError = GLDERR_DDRAW;
- goto return_with_error;
- }
-
- // Query for DX6 IDirectDraw4.
- hResult = IDirectDraw_QueryInterface(lpCtx->lpDD1,
- &IID_IDirectDraw4,
- (void**)&lpCtx->lpDD4);
- if (FAILED(hResult)) {
- MessageBox(NULL, "GLDirect requires DirectX 6.0 or above", "GLDirect", MB_OK);
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw4 interface", hResult);
- nContextError = GLDERR_DDRAW;
- goto return_with_error;
- }
-
- // Cache DirectDraw interface for subsequent GLRCs
- if (glb.bDirectDrawPersistant && !glb.bDirectDraw) {
- glb.lpDD4 = lpCtx->lpDD4;
- IDirectDraw4_AddRef(glb.lpDD4);
- glb.bDirectDraw = TRUE;
- }
-SkipDirectDrawCreate:
-
- // Now we have a DD4 interface we can check for broken cards
- dglTestForBrokenCards(lpCtx);
-
- // Test if primary device can use flipping instead of blitting
- ZeroMemory(&ddsd2DisplayMode, sizeof(ddsd2DisplayMode));
- ddsd2DisplayMode.dwSize = sizeof(ddsd2DisplayMode);
- hResult = IDirectDraw4_GetDisplayMode(
- lpCtx->lpDD4,
- &ddsd2DisplayMode);
- if (SUCCEEDED(hResult)) {
- if ( (lpCtx->dwWidth == ddsd2DisplayMode.dwWidth) &&
- (lpCtx->dwHeight == ddsd2DisplayMode.dwHeight) ) {
- // We have a fullscreen-size window
- bFullScrnWin = TRUE;
- // OK to use DirectDraw fullscreen mode ?
- if (glb.bPrimary && !glb.bFullscreenBlit && !lpCtx->EmulateSingle && !glb.bDirectDrawPersistant) {
- lpCtx->bFullscreen = TRUE;
- ddlogMessage(DDLOG_INFO, "Primary upgraded to page flipping.\n");
- }
- }
- // Cache the display mode dimensions
- lpCtx->dwModeWidth = ddsd2DisplayMode.dwWidth;
- lpCtx->dwModeHeight = ddsd2DisplayMode.dwHeight;
- }
-
- // Clamp the effective window dimensions to primary surface.
- // We need to do this for D3D viewport dimensions even if wide
- // surfaces are supported. This also is a good idea for handling
- // whacked-out window dimensions passed for non-drawable windows
- // like Solid Edge. (DaveM)
- if (lpCtx->dwWidth > ddsd2DisplayMode.dwWidth)
- lpCtx->dwWidth = ddsd2DisplayMode.dwWidth;
- if (lpCtx->dwHeight > ddsd2DisplayMode.dwHeight)
- lpCtx->dwHeight = ddsd2DisplayMode.dwHeight;
-
- // Check for non-RGB desktop resolution
- if (!lpCtx->bFullscreen && ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount <= 8) {
- ddlogPrintf(DDLOG_CRITICAL_OR_WARN, "Desktop color depth %d bpp not supported",
- ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount);
- nContextError = GLDERR_BPP;
- goto return_with_error;
- }
-#endif // _USE_GLD3_WGL
-
- ddlogPrintf(DDLOG_INFO, "Window: w=%i, h=%i (%s)",
- lpCtx->dwWidth,
- lpCtx->dwHeight,
- lpCtx->bFullscreen ? "fullscreen" : "windowed");
-
-#ifndef _USE_GLD3_WGL
- // Obtain ddraw caps
- ZeroMemory(&lpCtx->ddCaps, sizeof(DDCAPS));
- lpCtx->ddCaps.dwSize = sizeof(DDCAPS);
- if (glb.bHardware) {
- // Get HAL caps
- IDirectDraw4_GetCaps(lpCtx->lpDD4, &lpCtx->ddCaps, NULL);
- } else {
- // Get HEL caps
- IDirectDraw4_GetCaps(lpCtx->lpDD4, NULL, &lpCtx->ddCaps);
- }
-
- // If this flag is present then we can't default to Mesa
- // SW rendering between BeginScene() and EndScene().
- if (lpCtx->ddCaps.dwCaps2 & DDCAPS2_NO2DDURING3DSCENE) {
- ddlogMessage(DDLOG_INFO,
- "Warning : No 2D allowed during 3D scene.\n");
- }
-
- // Query for DX6 Direct3D3 interface
- hResult = IDirectDraw4_QueryInterface(lpCtx->lpDD4,
- &IID_IDirect3D3,
- (void**)&lpCtx->lpD3D3);
- if (FAILED(hResult)) {
- MessageBox(NULL, "Unable to initialize Direct3D", "GLDirect", MB_OK);
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D interface", hResult);
- nContextError = GLDERR_D3D;
- goto return_with_error;
- }
-
- // Context creation
- if (lpCtx->bFullscreen) {
- // FULLSCREEN
-
- // Disable warning popups when in fullscreen mode
- ddlogWarnOption(FALSE);
-
- // Have to release persistant primary surface if fullscreen mode
- if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {
- RELEASE(glb.lpPrimary4);
- glb.bDirectDrawPrimary = FALSE;
- }
-
- dwFlags = DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_ALLOWREBOOT;
- if (glb.bFastFPU)
- dwFlags |= DDSCL_FPUSETUP; // fast FPU setup optional (DaveM)
- hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, lpCtx->hWnd, dwFlags);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Exclusive Fullscreen mode", hResult);
- goto return_with_error;
- }
-
- hResult = IDirectDraw4_SetDisplayMode(lpCtx->lpDD4,
- lpCtx->dwModeWidth,
- lpCtx->dwModeHeight,
- lpPFD->cColorBits,
- 0,
- 0);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "SetDisplayMode failed", hResult);
- goto return_with_error;
- }
-
- // ** The display mode has changed, so dont use MessageBox! **
-
- ZeroMemory(&ddsd2, sizeof(ddsd2));
- ddsd2.dwSize = sizeof(ddsd2);
-
- if (bDoubleBuffer) {
- // Double buffered
- // Primary surface
- ddsd2.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
- ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |
- DDSCAPS_FLIP |
- DDSCAPS_COMPLEX |
- DDSCAPS_3DDEVICE |
- dwMemoryType;
- ddsd2.dwBackBufferCount = 1;
-
- hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
- nContextError = GLDERR_MEM;
- goto return_with_error;
- }
-
- // Render target surface
- ZeroMemory(&ddscaps2, sizeof(ddscaps2)); // Clear the entire struct.
- ddscaps2.dwCaps = DDSCAPS_BACKBUFFER;
- hResult = IDirectDrawSurface4_GetAttachedSurface(lpCtx->lpFront4, &ddscaps2, &lpCtx->lpBack4);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "GetAttachedSurface failed", hResult);
- nContextError = GLDERR_MEM;
- goto return_with_error;
- }
- } else {
- // Single buffered
- // Primary surface
- ddsd2.dwFlags = DDSD_CAPS;
- ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |
- //DDSCAPS_3DDEVICE |
- dwMemoryType;
-
- hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
- nContextError = GLDERR_MEM;
- goto return_with_error;
- }
-
- lpCtx->lpBack4 = NULL;
- }
- } else {
- // WINDOWED
-
- // OK to enable warning popups in windowed mode
- ddlogWarnOption(glb.bMessageBoxWarnings);
-
- dwFlags = DDSCL_NORMAL;
- if (glb.bMultiThreaded)
- dwFlags |= DDSCL_MULTITHREADED;
- if (glb.bFastFPU)
- dwFlags |= DDSCL_FPUSETUP; // fast FPU setup optional (DaveM)
- hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4,
- lpCtx->hWnd,
- dwFlags);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Normal coop level", hResult);
- goto return_with_error;
- }
- // Has Primary surface already been created for original GLRC ?
- // Note this can only be applicable for windowed modes
- if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {
- lpCtx->lpFront4 = glb.lpPrimary4;
- IDirectDrawSurface4_AddRef(lpCtx->lpFront4);
- // Update the window on the default clipper
- IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);
- IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
- IDirectDrawClipper_Release(lpddClipper);
- goto SkipPrimaryCreate;
- }
-
- // Primary surface
- ZeroMemory(&ddsd2, sizeof(ddsd2));
- ddsd2.dwSize = sizeof(ddsd2);
- ddsd2.dwFlags = DDSD_CAPS;
- ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
- hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
- nContextError = GLDERR_MEM;
- goto return_with_error;
- }
-
- // Cache Primary surface for subsequent GLRCs
- // Note this can only be applicable to subsequent windowed modes
- if (glb.bDirectDrawPersistant && !glb.bDirectDrawPrimary) {
- glb.lpPrimary4 = lpCtx->lpFront4;
- IDirectDrawSurface4_AddRef(glb.lpPrimary4);
- glb.bDirectDrawPrimary = TRUE;
- }
-
- // Clipper object
- hResult = DirectDrawCreateClipper(0, &lpddClipper, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateClipper failed", hResult);
- goto return_with_error;
- }
- hResult = IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
- if (FAILED(hResult)) {
- RELEASE(lpddClipper);
- ddlogError(DDLOG_CRITICAL_OR_WARN, "SetHWnd failed", hResult);
- goto return_with_error;
- }
- hResult = IDirectDrawSurface4_SetClipper(lpCtx->lpFront4, lpddClipper);
- RELEASE(lpddClipper); // We have finished with it.
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "SetClipper failed", hResult);
- goto return_with_error;
- }
-SkipPrimaryCreate:
-
- if (bDoubleBuffer) {
- // Render target surface
- ZeroMemory(&ddsd2, sizeof(ddsd2));
- ddsd2.dwSize = sizeof(ddsd2);
- ddsd2.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;
- ddsd2.dwWidth = lpCtx->dwWidth;
- ddsd2.dwHeight = lpCtx->dwHeight;
- ddsd2.ddsCaps.dwCaps = DDSCAPS_3DDEVICE |
- DDSCAPS_OFFSCREENPLAIN |
- dwMemoryType;
-
- // Reserve the entire desktop size for persistant buffers option
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {
- ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;
- ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;
- }
- // Re-use original back buffer if persistant buffers exist
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpBack4)
- hResult = IDirectDrawSurface4_AddRef(lpCtx->lpBack4 = glb.lpBack4);
- else
- hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpBack4, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Create Backbuffer failed", hResult);
- nContextError = GLDERR_MEM;
- goto return_with_error;
- }
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpBack4)
- IDirectDrawSurface4_AddRef(glb.lpBack4 = lpCtx->lpBack4);
- } else {
- lpCtx->lpBack4 = NULL;
- }
- }
-
- //
- // Now create the Z-buffer
- //
- lpCtx->bStencil = FALSE; // Default to no stencil buffer
- if (bDepthBuffer && (lpCtx->lpPF->iZBufferPF != -1)) {
- // Get z-buffer dimensions from the render target
- // Setup the surface desc for the z-buffer.
- ZeroMemory(&ddsd2, sizeof(ddsd2));
- ddsd2.dwSize = sizeof(ddsd2);
- ddsd2.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
- ddsd2.ddsCaps.dwCaps = DDSCAPS_ZBUFFER | dwMemoryType;
- ddsd2.dwWidth = lpCtx->dwWidth;
- ddsd2.dwHeight = lpCtx->dwHeight;
- memcpy(&ddsd2.ddpfPixelFormat,
- &glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF],
- sizeof(DDPIXELFORMAT) );
-
- // Reserve the entire desktop size for persistant buffers option
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {
- ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;
- ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;
- }
-
- // Create a z-buffer
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4)
- hResult = IDirectDrawSurface4_AddRef(lpCtx->lpDepth4 = glb.lpDepth4);
- else
- hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpDepth4, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (ZBuffer) failed", hResult);
- nContextError = GLDERR_MEM;
- goto return_with_error;
- }
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpDepth4)
- IDirectDrawSurface4_AddRef(glb.lpDepth4 = lpCtx->lpDepth4);
- else if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4 && glb.lpBack4)
- IDirectDrawSurface4_DeleteAttachedSurface(glb.lpBack4, 0, glb.lpDepth4);
-
- // Attach Zbuffer to render target
- TRY(IDirectDrawSurface4_AddAttachedSurface(
- bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,
- lpCtx->lpDepth4),
- "dglCreateContext: Attach Zbuffer");
- if (glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags & DDPF_STENCILBUFFER) {
- lpCtx->bStencil = TRUE;
- ddlogMessage(DDLOG_INFO, "Depth buffer has stencil\n");
- }
- }
-
- // Clear all back buffers and Z-buffers in case of memory recycling.
- ZeroMemory(&ddbltfx, sizeof(ddbltfx));
- ddbltfx.dwSize = sizeof(ddbltfx);
- IDirectDrawSurface4_Blt(lpCtx->lpBack4, NULL, NULL, NULL,
- DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);
- if (lpCtx->lpDepth4)
- IDirectDrawSurface4_Blt(lpCtx->lpDepth4, NULL, NULL, NULL,
- DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);
-
- // Now that we have a Z-buffer we can create the 3D device
- hResult = IDirect3D3_CreateDevice(lpCtx->lpD3D3,
- &glb.d3dGuid,
- bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,
- &lpCtx->lpDev3,
- NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D device", hResult);
- nContextError = GLDERR_D3D;
- goto return_with_error;
- }
-
- // We must do this as soon as the device is created
- dglInitStateCaches(lpCtx);
-
- // Obtain the D3D Device Description
- D3DHWDevDesc.dwSize = D3DHELDevDesc.dwSize = sizeof(D3DDEVICEDESC);
- TRY(IDirect3DDevice3_GetCaps(lpCtx->lpDev3,
- &D3DHWDevDesc,
- &D3DHELDevDesc),
- "dglCreateContext: GetCaps failed");
-
- // Choose the relevant description and cache it in the context.
- // We will use this description later for caps checking
- memcpy( &lpCtx->D3DDevDesc,
- glb.bHardware ? &D3DHWDevDesc : &D3DHELDevDesc,
- sizeof(D3DDEVICEDESC));
-
- // Now we can examine the texture formats
- if (!dglBuildTextureFormatList(lpCtx->lpDev3)) {
- ddlogMessage(DDLOG_CRITICAL_OR_WARN, "dglBuildTextureFormatList failed\n");
- goto return_with_error;
- }
-
- // Get the pixel format of the back buffer
- lpCtx->ddpfRender.dwSize = sizeof(lpCtx->ddpfRender);
- if (bDoubleBuffer)
- hResult = IDirectDrawSurface4_GetPixelFormat(
- lpCtx->lpBack4,
- &lpCtx->ddpfRender);
- else
- hResult = IDirectDrawSurface4_GetPixelFormat(
- lpCtx->lpFront4,
- &lpCtx->ddpfRender);
-
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "GetPixelFormat failed", hResult);
- goto return_with_error;
- }
- // Find a pixel packing function suitable for this surface
- pxClassifyPixelFormat(&lpCtx->ddpfRender,
- &lpCtx->fnPackFunc,
- &lpCtx->fnUnpackFunc,
- &lpCtx->fnPackSpanFunc);
-
- // Viewport
- hResult = IDirect3D3_CreateViewport(lpCtx->lpD3D3, &lpCtx->lpViewport3, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateViewport failed", hResult);
- goto return_with_error;
- }
-
- hResult = IDirect3DDevice3_AddViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "AddViewport failed", hResult);
- goto return_with_error;
- }
-
- // Initialise the viewport
- // Note screen coordinates are used for viewport clipping since D3D
- // transform operations are not used in the GLD CAD driver. (DaveM)
- inv_aspect = (float)lpCtx->dwHeight/(float)lpCtx->dwWidth;
-
- lpCtx->d3dViewport.dwSize = sizeof(lpCtx->d3dViewport);
- lpCtx->d3dViewport.dwX = 0;
- lpCtx->d3dViewport.dwY = 0;
- lpCtx->d3dViewport.dwWidth = lpCtx->dwWidth;
- lpCtx->d3dViewport.dwHeight = lpCtx->dwHeight;
- lpCtx->d3dViewport.dvClipX = 0; // -1.0f;
- lpCtx->d3dViewport.dvClipY = 0; // inv_aspect;
- lpCtx->d3dViewport.dvClipWidth = lpCtx->dwWidth; // 2.0f;
- lpCtx->d3dViewport.dvClipHeight = lpCtx->dwHeight; // 2.0f * inv_aspect;
- lpCtx->d3dViewport.dvMinZ = 0.0f;
- lpCtx->d3dViewport.dvMaxZ = 1.0f;
- TRY(IDirect3DViewport3_SetViewport2(lpCtx->lpViewport3, &lpCtx->d3dViewport), "dglCreateContext: SetViewport2");
-
- hResult = IDirect3DDevice3_SetCurrentViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "SetCurrentViewport failed", hResult);
- goto return_with_error;
- }
-
- lpCtx->dwBPP = lpPFD->cColorBits;
- lpCtx->iZBufferPF = lpCtx->lpPF->iZBufferPF;
-
- // Set last texture to NULL
- for (i=0; i<MAX_TEXTURE_UNITS; i++) {
- lpCtx->ColorOp[i] = D3DTOP_DISABLE;
- lpCtx->AlphaOp[i] = D3DTOP_DISABLE;
- lpCtx->tObj[i] = NULL;
- }
-
- // Default to perspective correct texture mapping
- dglSetRenderState(lpCtx, D3DRENDERSTATE_TEXTUREPERSPECTIVE, TRUE, "TexturePersp");
-
- // Set the default culling mode
- lpCtx->cullmode = D3DCULL_NONE;
- dglSetRenderState(lpCtx, D3DRENDERSTATE_CULLMODE, D3DCULL_NONE, "CullMode");
-
- // Disable specular
- dglSetRenderState(lpCtx, D3DRENDERSTATE_SPECULARENABLE, FALSE, "SpecularEnable");
- // Disable subpixel correction
-// dglSetRenderState(lpCtx, D3DRENDERSTATE_SUBPIXEL, FALSE, "SubpixelEnable");
- // Disable dithering
- dglSetRenderState(lpCtx, D3DRENDERSTATE_DITHERENABLE, FALSE, "DitherEnable");
-
- // Initialise the primitive caches
-// lpCtx->dwNextLineVert = 0;
-// lpCtx->dwNextTriVert = 0;
-
- // Init the global texture palette
- lpCtx->lpGlobalPalette = NULL;
-
- // Init the HW/SW usage counters
-// lpCtx->dwHWUsageCount = lpCtx->dwSWUsageCount = 0L;
-
- //
- // Create two D3D vertex buffers.
- // One will hold the pre-transformed data with the other one
- // being used to hold the post-transformed & clipped verts.
- //
-#if 0 // never used (DaveM)
- vbufdesc.dwSize = sizeof(D3DVERTEXBUFFERDESC);
- vbufdesc.dwCaps = D3DVBCAPS_WRITEONLY;
- if (glb.bHardware == FALSE)
- vbufdesc.dwCaps = D3DVBCAPS_SYSTEMMEMORY;
- vbufdesc.dwNumVertices = 32768; // For the time being
-
- // Source vertex buffer
- vbufdesc.dwFVF = DGL_LVERTEX;
- hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_vbuf, 0, NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(src) failed", hResult);
- goto return_with_error;
- }
-
- // Destination vertex buffer
- vbufdesc.dwFVF = (glb.bMultitexture == FALSE) ? D3DFVF_TLVERTEX : (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX2);
- hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_pvbuf, 0, NULL);
- if(FAILED(hResult)) {
- ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(dst) failed", hResult);
- goto return_with_error;
- }
-#endif
-
-#endif _USE_GLD3_WGL
-
- //
- // Now create the Mesa context
- //
-
- // Create the Mesa visual
- if (lpPFD->cDepthBits)
- dwDepthBits = 16;
- if (lpPFD->cStencilBits)
- dwStencilBits = 8;
- if (lpPFD->cAlphaBits) {
- dwAlphaBits = 8;
- bAlphaSW = GL_TRUE;
- }
- if (lpPFD->dwFlags & PFD_DOUBLEBUFFER)
- bDouble = GL_TRUE;
-// lpCtx->EmulateSingle =
-// (lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;
-
-#ifdef _USE_GLD3_WGL
- lpCtx->glVis = _mesa_create_visual(
- bDouble, /* double buffer */
- GL_FALSE, // stereo
- lpPFD->cRedBits,
- lpPFD->cGreenBits,
- lpPFD->cBlueBits,
- dwAlphaBits,
- dwDepthBits,
- dwStencilBits,
- lpPFD->cAccumRedBits, // accum bits
- lpPFD->cAccumGreenBits, // accum bits
- lpPFD->cAccumBlueBits, // accum bits
- lpPFD->cAccumAlphaBits, // accum alpha bits
- 1 // num samples
- );
-#else // _USE_GLD3_WGL
- lpCtx->glVis = (*mesaFuncs.gl_create_visual)(
- GL_TRUE, // RGB mode
- bAlphaSW, // Is an alpha buffer required?
- bDouble, // Is an double-buffering required?
- GL_FALSE, // stereo
- dwDepthBits, // depth_size
- dwStencilBits, // stencil_size
- lpPFD->cAccumBits, // accum_size
- 0, // colour-index bits
- lpPFD->cRedBits, // Red bit count
- lpPFD->cGreenBits, // Green bit count
- lpPFD->cBlueBits, // Blue bit count
- dwAlphaBits // Alpha bit count
- );
-#endif // _USE_GLD3_WGL
-
- if (lpCtx->glVis == NULL) {
- ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_visual failed\n");
- goto return_with_error;
- }
-
-#ifdef _USE_GLD3_WGL
- lpCtx->glCtx = _mesa_create_context(lpCtx->glVis, NULL, (void *)lpCtx, GL_TRUE);
-#else
- // Create the Mesa context
- lpCtx->glCtx = (*mesaFuncs.gl_create_context)(
- lpCtx->glVis, // Mesa visual
- NULL, // share list context
- (void *)lpCtx, // Pointer to our driver context
- GL_TRUE // Direct context flag
- );
-#endif // _USE_GLD3_WGL
-
- if (lpCtx->glCtx == NULL) {
- ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_context failed\n");
- goto return_with_error;
- }
-
- // Create the Mesa framebuffer
-#ifdef _USE_GLD3_WGL
- lpCtx->glBuffer = _mesa_create_framebuffer(
- lpCtx->glVis,
- lpCtx->glVis->depthBits > 0,
- lpCtx->glVis->stencilBits > 0,
- lpCtx->glVis->accumRedBits > 0,
- GL_FALSE //swalpha
- );
-#else
- lpCtx->glBuffer = (*mesaFuncs.gl_create_framebuffer)(lpCtx->glVis);
-#endif // _USE_GLD3_WGL
-
- if (lpCtx->glBuffer == NULL) {
- ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_framebuffer failed\n");
- goto return_with_error;
- }
-
-#ifdef _USE_GLD3_WGL
- // Init Mesa internals
- _swrast_CreateContext( lpCtx->glCtx );
- _vbo_CreateContext( lpCtx->glCtx );
- _tnl_CreateContext( lpCtx->glCtx );
- _swsetup_CreateContext( lpCtx->glCtx );
-
- _gldDriver.InitialiseMesa(lpCtx);
-
- lpCtx->glCtx->imports.warning = _gld_mesa_warning;
- lpCtx->glCtx->imports.fatal = _gld_mesa_fatal;
-
-#else
- // Tell Mesa how many texture stages we have
- glb.wMaxSimultaneousTextures = lpCtx->D3DDevDesc.wMaxSimultaneousTextures;
- // Only use as many Units as the spec requires
- if (glb.wMaxSimultaneousTextures > MAX_TEXTURE_UNITS)
- glb.wMaxSimultaneousTextures = MAX_TEXTURE_UNITS;
- lpCtx->glCtx->Const.MaxTextureUnits = glb.wMaxSimultaneousTextures;
- ddlogPrintf(DDLOG_INFO, "Texture stages : %d", glb.wMaxSimultaneousTextures);
-
- // Set the max texture size.
- // NOTE: clamped to a max of 1024 for extra performance!
- lpCtx->dwMaxTextureSize = (lpCtx->D3DDevDesc.dwMaxTextureWidth <= 1024) ? lpCtx->D3DDevDesc.dwMaxTextureWidth : 1024;
-
-// Texture resize takes place elsewhere. KH
-// NOTE: This was added to workaround an issue with the Intel app.
-#if 0
- lpCtx->glCtx->Const.MaxTextureSize = lpCtx->dwMaxTextureSize;
-#else
- lpCtx->glCtx->Const.MaxTextureSize = 1024;
-#endif
- lpCtx->glCtx->Const.MaxDrawBuffers = 1;
-
- // Setup the Display Driver pointers
- dglSetupDDPointers(lpCtx->glCtx);
-
- // Initialise all the Direct3D renderstates
- dglInitStateD3D(lpCtx->glCtx);
-
-#if 0
- // Signal a reload of texture state on next glBegin
- lpCtx->m_texHandleValid = FALSE;
- lpCtx->m_mtex = FALSE;
- lpCtx->m_texturing = FALSE;
-#else
- // Set default texture unit state
-// dglSetTexture(lpCtx, 0, NULL);
-// dglSetTexture(lpCtx, 1, NULL);
-#endif
-
- //
- // Set the global texture palette to default values.
- //
-
- // Clear the entire palette
- ZeroMemory(ppe, sizeof(PALETTEENTRY) * 256);
-
- // Fill the palette with a default colour.
- // A garish colour is used to catch bugs. Here Magenta is used.
- for (i=0; i < 256; i++) {
- ppe[i].peRed = 255;
- ppe[i].peGreen = 0;
- ppe[i].peBlue = 255;
- }
-
- RELEASE(lpCtx->lpGlobalPalette);
-
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpGlobalPalette)
- hResult = IDirectDrawPalette_AddRef(lpCtx->lpGlobalPalette = glb.lpGlobalPalette);
- else
- hResult = IDirectDraw4_CreatePalette(
- lpCtx->lpDD4,
- DDPCAPS_INITIALIZE | DDPCAPS_8BIT | DDPCAPS_ALLOW256,
- ppe,
- &(lpCtx->lpGlobalPalette),
- NULL);
- if (FAILED(hResult)) {
- ddlogError(DDLOG_ERROR, "Default CreatePalette failed\n", hResult);
- lpCtx->lpGlobalPalette = NULL;
- goto return_with_error;
- }
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpGlobalPalette)
- IDirectDrawPalette_AddRef(glb.lpGlobalPalette = lpCtx->lpGlobalPalette);
-
-#endif // _USE_GLD3_WGL
-
- // ** If we have made it to here then we can enable rendering **
- lpCtx->bCanRender = TRUE;
-
-// ddlogMessage(DDLOG_SYSTEM, "dglCreateContextBuffers succeded\n");
-
-#ifdef GLD_THREADS
- // Release serialized access
- if (glb.bMultiThreaded)
- LeaveCriticalSection(&CriticalSection);
-#endif
-
- return TRUE;
-
-return_with_error:
- // Clean up before returning.
- // This is critical for secondary devices.
-
- lpCtx->bCanRender = FALSE;
-
-#ifdef _USE_GLD3_WGL
- // Destroy the Mesa context
- if (lpCtx->glBuffer)
- _mesa_destroy_framebuffer(lpCtx->glBuffer);
- if (lpCtx->glCtx)
- _mesa_destroy_context(lpCtx->glCtx);
- if (lpCtx->glVis)
- _mesa_destroy_visual(lpCtx->glVis);
-
- // Destroy driver data
- _gldDriver.DestroyDrawable(lpCtx);
-#else
- // Destroy the Mesa context
- if (lpCtx->glBuffer)
- (*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);
- if (lpCtx->glCtx)
- (*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);
- if (lpCtx->glVis)
- (*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);
-
- RELEASE(lpCtx->m_pvbuf); // Release D3D vertex buffer
- RELEASE(lpCtx->m_vbuf); // Release D3D vertex buffer
-
- if (lpCtx->lpViewport3) {
- if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
- RELEASE(lpCtx->lpViewport3);
- lpCtx->lpViewport3 = NULL;
- }
-
- RELEASE(lpCtx->lpDev3);
- if (lpCtx->lpDepth4) {
- if (lpCtx->lpBack4)
- IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);
- else
- IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);
- RELEASE(lpCtx->lpDepth4);
- lpCtx->lpDepth4 = NULL;
- }
- RELEASE(lpCtx->lpBack4);
- RELEASE(lpCtx->lpFront4);
- else
- if (lpCtx->bFullscreen) {
- IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);
- IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);
- }
- RELEASE(lpCtx->lpD3D3);
- RELEASE(lpCtx->lpDD4);
- RELEASE(lpCtx->lpDD1);
-#endif // _USE_GLD3_WGL
-
- lpCtx->bAllocated = FALSE;
-
-#ifdef GLD_THREADS
- // Release serialized access
- if (glb.bMultiThreaded)
- LeaveCriticalSection(&CriticalSection);
-#endif
-
- return FALSE;
-
-#undef DDLOG_CRITICAL_OR_WARN
-}
-
-// ***********************************************************************
-
-HGLRC dglCreateContext(
- HDC a,
- const DGL_pixelFormat *lpPF)
-{
- int i;
- HGLRC hGLRC;
- DGL_ctx* lpCtx;
- static BOOL bWarnOnce = TRUE;
- DWORD dwThreadId = GetCurrentThreadId();
- char szMsg[256];
- HWND hWnd;
- LONG lpfnWndProc;
-
- // Validate license
- if (!dglValidate())
- return NULL;
-
- // Is context state ready ?
- if (!bContextReady)
- return NULL;
-
- ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext for HDC=%X, ThreadId=%X", a, dwThreadId);
-
- // Find next free context.
- // Also ensure that only one Fullscreen context is created at any one time.
- hGLRC = 0; // Default to Not Found
- for (i=0; i<DGL_MAX_CONTEXTS; i++) {
- if (ctxlist[i].bAllocated) {
- if (/*glb.bFullscreen && */ctxlist[i].bFullscreen)
- break;
- } else {
- hGLRC = (HGLRC)(i+1);
- break;
- }
- }
-
- // Bail if no GLRC was found
- if (!hGLRC)
- return NULL;
-
- // Set the context pointer
- lpCtx = dglGetContextAddress(hGLRC);
- // Make sure that context is zeroed before we do anything.
- // MFC and C++ apps call wglCreateContext() and wglDeleteContext() multiple times,
- // even though only one context is ever used by the app, so keep it clean. (DaveM)
- ZeroMemory(lpCtx, sizeof(DGL_ctx));
- lpCtx->bAllocated = TRUE;
- // Flag that buffers need creating on next wglMakeCurrent call.
- lpCtx->bHasBeenCurrent = FALSE;
- lpCtx->lpPF = (DGL_pixelFormat *)lpPF; // cache pixel format
- lpCtx->bCanRender = FALSE;
-
- // Create all the internal resources here, not in dglMakeCurrent().
- // We do a re-size check in dglMakeCurrent in case of re-allocations. (DaveM)
- // We now try context allocations twice, first with video memory,
- // then again with system memory. This is similar to technique
- // used for dglWglResizeBuffers(). (DaveM)
- if (lpCtx->bHasBeenCurrent == FALSE) {
- if (!dglCreateContextBuffers(a, lpCtx, FALSE)) {
- if (glb.bMessageBoxWarnings && bWarnOnce && dwLogging) {
- bWarnOnce = FALSE;
- switch (nContextError) {
- case GLDERR_DDRAW: strcpy(szMsg, szDDrawWarning); break;
- case GLDERR_D3D: strcpy(szMsg, szD3DWarning); break;
- case GLDERR_MEM: strcpy(szMsg, szResourceWarning); break;
- case GLDERR_BPP: strcpy(szMsg, szBPPWarning); break;
- default: strcpy(szMsg, "");
- }
- if (strlen(szMsg))
- MessageBox(NULL, szMsg, "GLDirect", MB_OK | MB_ICONWARNING);
- }
- // Only need to try again if memory error
- if (nContextError == GLDERR_MEM) {
- ddlogPrintf(DDLOG_WARN, "dglCreateContext failed 1st time with video memory");
- }
- else {
- ddlogPrintf(DDLOG_ERROR, "dglCreateContext failed");
- return NULL;
- }
- }
- }
-
- // Now that we have a hWnd, we can intercept the WindowProc.
- hWnd = lpCtx->hWnd;
- if (hWnd) {
- // Only hook individual window handler once if not hooked before.
- lpfnWndProc = GetWindowLong(hWnd, GWL_WNDPROC);
- if (lpfnWndProc != (LONG)dglWndProc) {
- lpCtx->lpfnWndProc = lpfnWndProc;
- SetWindowLong(hWnd, GWL_WNDPROC, (LONG)dglWndProc);
- }
- // Find the parent window of the app too.
- if (glb.hWndActive == NULL) {
- while (hWnd != NULL) {
- glb.hWndActive = hWnd;
- hWnd = GetParent(hWnd);
- }
- // Hook the parent window too.
- lpfnWndProc = GetWindowLong(glb.hWndActive, GWL_WNDPROC);
- if (glb.hWndActive == lpCtx->hWnd)
- glb.lpfnWndProc = lpCtx->lpfnWndProc;
- else if (lpfnWndProc != (LONG)dglWndProc)
- glb.lpfnWndProc = lpfnWndProc;
- if (glb.lpfnWndProc)
- SetWindowLong(glb.hWndActive, GWL_WNDPROC, (LONG)dglWndProc);
- }
- }
-
- ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext succeeded for HGLRC=%d", (int)hGLRC);
-
- return hGLRC;
-}
-
-// ***********************************************************************
-// Make a DirectGL context current
-// Used by wgl functions and dgl functions
-BOOL dglMakeCurrent(
- HDC a,
- HGLRC b)
-{
- int context;
- DGL_ctx* lpCtx;
- HWND hWnd;
- BOOL bNeedResize = FALSE;
- BOOL bWindowChanged, bContextChanged;
- LPDIRECTDRAWCLIPPER lpddClipper;
- DWORD dwThreadId = GetCurrentThreadId();
- LONG lpfnWndProc;
-
- // Validate license
- if (!dglValidate())
- return FALSE;
-
- // Is context state ready ?
- if (!bContextReady)
- return FALSE;
-
- context = (int)b; // This is as a result of STRICT!
- ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: HDC=%X, HGLRC=%d, ThreadId=%X", a, context, dwThreadId);
-
- // If the HGLRC is NULL then make no context current;
- // Ditto if the HDC is NULL either. (DaveM)
- if (context == 0 || a == 0) {
- // Corresponding Mesa operation
-#ifdef _USE_GLD3_WGL
- _mesa_make_current(NULL, NULL);
-#else
- (*mesaFuncs.gl_make_current)(NULL, NULL);
-#endif
- dglSetCurrentContext(0);
- return TRUE;
- }
-
- // Make sure the HGLRC is in range
- if ((context > DGL_MAX_CONTEXTS) || (context < 0)) {
- ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: HGLRC out of range\n");
- return FALSE;
- }
-
- // Find address of context and make sure that it has been allocated
- lpCtx = dglGetContextAddress(b);
- if (!lpCtx->bAllocated) {
- ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: Context not allocated\n");
-// return FALSE;
- return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH
- }
-
-#ifdef GLD_THREADS
- // Serialize access to DirectDraw or DDS operations
- if (glb.bMultiThreaded)
- EnterCriticalSection(&CriticalSection);
-#endif
-
- // Check if window has changed
- hWnd = (a != lpCtx->hDC) ? WindowFromDC(a) : lpCtx->hWnd;
- bWindowChanged = (hWnd != lpCtx->hWnd) ? TRUE : FALSE;
- bContextChanged = (b != dglGetCurrentContext()) ? TRUE : FALSE;
-
- // If the window has changed, make sure the clipper is updated. (DaveM)
- if (glb.bDirectDrawPersistant && !lpCtx->bFullscreen && (bWindowChanged || bContextChanged)) {
- lpCtx->hWnd = hWnd;
-#ifndef _USE_GLD3_WGL
- IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);
- IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
- IDirectDrawClipper_Release(lpddClipper);
-#endif // _USE_GLD3_WGL
- }
-
- // Make sure hDC and hWnd is current. (DaveM)
- // Obtain the dimensions of the rendering window
- lpCtx->hDC = a; // Cache DC
- lpCtx->hWnd = hWnd;
- hWndLastActive = hWnd;
-
- // Check for non-window DC = memory DC ?
- if (hWnd == NULL) {
- if (GetClipBox(a, &lpCtx->rcScreenRect) == ERROR) {
- ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglMakeCurrent\n");
- SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
- }
- }
- else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {
- ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglMakeCurrent\n");
- SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
- }
- // Check if buffers need to be re-sized;
- // If so, wait until Mesa GL stuff is setup before re-sizing;
- if (lpCtx->dwWidth != lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left ||
- lpCtx->dwHeight != lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top)
- bNeedResize = TRUE;
-
- // Now we can update our globals
- dglSetCurrentContext(b);
-
- // Corresponding Mesa operation
-#ifdef _USE_GLD3_WGL
- _mesa_make_current(lpCtx->glCtx, lpCtx->glBuffer);
- lpCtx->glCtx->Driver.UpdateState(lpCtx->glCtx, _NEW_ALL);
- if (bNeedResize) {
- // Resize buffers (Note Mesa GL needs to be setup beforehand);
- // Resize Mesa internal buffer too via glViewport() command,
- // which subsequently calls dglWglResizeBuffers() too.
- lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
- lpCtx->bHasBeenCurrent = TRUE;
- }
-#else
- (*mesaFuncs.gl_make_current)(lpCtx->glCtx, lpCtx->glBuffer);
-
- dglSetupDDPointers(lpCtx->glCtx);
-
- // Insure DirectDraw surfaces fit current window DC
- if (bNeedResize) {
- // Resize buffers (Note Mesa GL needs to be setup beforehand);
- // Resize Mesa internal buffer too via glViewport() command,
- // which subsequently calls dglWglResizeBuffers() too.
- (*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
- lpCtx->bHasBeenCurrent = TRUE;
- }
-#endif // _USE_GLD3_WGL
- ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: width = %d, height = %d", lpCtx->dwWidth, lpCtx->dwHeight);
-
- // We have to clear D3D back buffer and render state if emulated front buffering
- // for different window (but not context) like in Solid Edge.
- if (glb.bDirectDrawPersistant && glb.bPersistantBuffers
- && (bWindowChanged /* || bContextChanged */) && lpCtx->EmulateSingle) {
-#ifdef _USE_GLD3_WGL
-// IDirect3DDevice8_EndScene(lpCtx->pDev);
-// lpCtx->bSceneStarted = FALSE;
- lpCtx->glCtx->Driver.Clear(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,
- GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#else
- IDirect3DDevice3_EndScene(lpCtx->lpDev3);
- lpCtx->bSceneStarted = FALSE;
- dglClearD3D(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,
- GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#endif // _USE_GLD3_WGL
- }
-
- // The first time we call MakeCurrent we set the initial viewport size
- if (lpCtx->bHasBeenCurrent == FALSE)
-#ifdef _USE_GLD3_WGL
- lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#else
- (*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
-#endif // _USE_GLD3_WGL
- lpCtx->bHasBeenCurrent = TRUE;
-
-#ifdef GLD_THREADS
- // Release serialized access
- if (glb.bMultiThreaded)
- LeaveCriticalSection(&CriticalSection);
-#endif
-
- return TRUE;
-}
-
-// ***********************************************************************
-
-BOOL dglDeleteContext(
- HGLRC a)
-{
- DGL_ctx* lpCtx;
- DWORD dwThreadId = GetCurrentThreadId();
- char argstr[256];
-
-#if 0 // We have enough trouble throwing exceptions as it is... (DaveM)
- // Validate license
- if (!dglValidate())
- return FALSE;
-#endif
-
- // Is context state ready ?
- if (!bContextReady)
- return FALSE;
-
- ddlogPrintf(DDLOG_SYSTEM, "dglDeleteContext: Deleting context HGLRC=%d, ThreadId=%X", (int)a, dwThreadId);
-
- // Make sure the HGLRC is in range
- if (((int) a> DGL_MAX_CONTEXTS) || ((int)a < 0)) {
- ddlogMessage(DDLOG_ERROR, "dglDeleteCurrent: HGLRC out of range\n");
- return FALSE;
- }
-
- // Make sure context is valid
- lpCtx = dglGetContextAddress(a);
- if (!lpCtx->bAllocated) {
- ddlogPrintf(DDLOG_WARN, "Tried to delete unallocated context HGLRC=%d", (int)a);
-// return FALSE;
- return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH
- }
-
- // Make sure context is de-activated
- if (a == dglGetCurrentContext()) {
- ddlogPrintf(DDLOG_WARN, "dglDeleteContext: context HGLRC=%d still active", (int)a);
- dglMakeCurrent(NULL, NULL);
- }
-
-#ifdef GLD_THREADS
- // Serialize access to DirectDraw or DDS operations
- if (glb.bMultiThreaded)
- EnterCriticalSection(&CriticalSection);
-#endif
-
- // We are about to destroy all Direct3D objects.
- // Therefore we must disable rendering
- lpCtx->bCanRender = FALSE;
-
- // This exception handler was installed to catch some
- // particularly nasty apps. Console apps that call exit()
- // fall into this catagory (i.e. Win32 Glut).
-
- // VC cannot successfully implement multiple exception handlers
- // if more than one exception occurs. Therefore reverting back to
- // single exception handler as Keith originally had it. (DaveM)
-
-#define WARN_MESSAGE(p) strcpy(argstr, (#p));
-#define SAFE_RELEASE(p) WARN_MESSAGE(p); RELEASE(p);
-
-__try {
-#ifdef _USE_GLD3_WGL
- WARN_MESSAGE(gl_destroy_framebuffer);
- if (lpCtx->glBuffer)
- _mesa_destroy_framebuffer(lpCtx->glBuffer);
- WARN_MESSAGE(gl_destroy_context);
- if (lpCtx->glCtx)
- _mesa_destroy_context(lpCtx->glCtx);
- WARN_MESSAGE(gl_destroy_visual);
- if (lpCtx->glVis)
- _mesa_destroy_visual(lpCtx->glVis);
-
- _gldDriver.DestroyDrawable(lpCtx);
-#else
- // Destroy the Mesa context
- WARN_MESSAGE(gl_destroy_framebuffer);
- if (lpCtx->glBuffer)
- (*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);
- WARN_MESSAGE(gl_destroy_context);
- if (lpCtx->glCtx)
- (*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);
- WARN_MESSAGE(gl_destroy_visual);
- if (lpCtx->glVis)
- (*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);
-
- SAFE_RELEASE(lpCtx->m_pvbuf); // release D3D vertex buffer
- SAFE_RELEASE(lpCtx->m_vbuf); // release D3D vertex buffer
-
- // Delete the global palette
- SAFE_RELEASE(lpCtx->lpGlobalPalette);
-
- // Clean up.
- if (lpCtx->lpViewport3) {
- if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
- SAFE_RELEASE(lpCtx->lpViewport3);
- lpCtx->lpViewport3 = NULL;
- }
-
- SAFE_RELEASE(lpCtx->lpDev3);
- if (lpCtx->lpDepth4) {
- if (lpCtx->lpBack4)
- IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);
- else
- IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);
- SAFE_RELEASE(lpCtx->lpDepth4);
- lpCtx->lpDepth4 = NULL;
- }
- SAFE_RELEASE(lpCtx->lpBack4);
- SAFE_RELEASE(lpCtx->lpFront4);
- if (lpCtx->bFullscreen) {
- IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);
- IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);
- }
- SAFE_RELEASE(lpCtx->lpD3D3);
- SAFE_RELEASE(lpCtx->lpDD4);
- SAFE_RELEASE(lpCtx->lpDD1);
-#endif // _ULSE_GLD3_WGL
-
-}
-__except(EXCEPTION_EXECUTE_HANDLER) {
- ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContext: %s", argstr);
-}
-
- // Restore the window message handler because this context may be used
- // again by another window with a *different* message handler. (DaveM)
- if (lpCtx->lpfnWndProc) {
- SetWindowLong(lpCtx->hWnd, GWL_WNDPROC, (LONG)lpCtx->lpfnWndProc);
- lpCtx->lpfnWndProc = (LONG)NULL;
- }
-
- lpCtx->bAllocated = FALSE; // This context is now free for use
-
-#ifdef GLD_THREADS
- // Release serialized access
- if (glb.bMultiThreaded)
- LeaveCriticalSection(&CriticalSection);
-#endif
-
- return TRUE;
-}
-
-// ***********************************************************************
-
-BOOL dglSwapBuffers(
- HDC hDC)
-{
- RECT rSrcRect; // Source rectangle
- RECT rDstRect; // Destination rectangle
- POINT pt;
- HRESULT hResult;
-
- DDBLTFX bltFX;
- DWORD dwBlitFlags;
- DDBLTFX *lpBltFX;
-
-// DWORD dwThreadId = GetCurrentThreadId();
- HGLRC hGLRC = dglGetCurrentContext();
- DGL_ctx *lpCtx = dglGetContextAddress(hGLRC);
- HWND hWnd;
-
- HDC hDCAux; // for memory DC
- int x,y,w,h; // for memory DC BitBlt
-
-#if 0 // Perhaps not a good idea. Called too often. KH
- // Validate license
- if (!dglValidate())
- return FALSE;
-#endif
-
- if (!lpCtx) {
- return TRUE; //FALSE; // No current context
- }
-
- if (!lpCtx->bCanRender) {
- // Don't return false else some apps will bail.
- return TRUE;
- }
-
- hWnd = lpCtx->hWnd;
- if (hDC != lpCtx->hDC) {
- ddlogPrintf(DDLOG_WARN, "dglSwapBuffers: HDC=%X does not match HDC=%X for HGLRC=%d", hDC, lpCtx->hDC, hGLRC);
- hWnd = WindowFromDC(hDC);
- }
-
-#ifndef _USE_GLD3_WGL
- // Ensure that the surfaces exist before we tell
- // the device to render to them.
- IDirectDraw4_RestoreAllSurfaces(lpCtx->lpDD4);
-
- // Make sure that the vertex caches have been emptied
-// dglStateChange(lpCtx);
-
- // Some OpenGL programs don't issue a glFinish - check for it here.
- if (lpCtx->bSceneStarted) {
- IDirect3DDevice3_EndScene(lpCtx->lpDev3);
- lpCtx->bSceneStarted = FALSE;
- }
-#endif
-
-#if 0
- // If the calling app is not active then we don't need to Blit/Flip.
- // We can therefore simply return TRUE.
- if (!glb.bAppActive)
- return TRUE;
- // Addendum: This is WRONG! We should bail if the app is *minimized*,
- // not merely if the app is just plain 'not active'.
- // KeithH, 27/May/2000.
-#endif
-
- // Check for non-window DC = memory DC ?
- if (hWnd == NULL) {
- if (GetClipBox(hDC, &rSrcRect) == ERROR)
- return TRUE;
- // Use GDI BitBlt instead from compatible DirectDraw DC
- x = rSrcRect.left;
- y = rSrcRect.top;
- w = rSrcRect.right - rSrcRect.left;
- h = rSrcRect.bottom - rSrcRect.top;
-
- // Ack. DX8 does not have a GetDC() function...
- // TODO: Defer to DX7 or DX9 drivers... (DaveM)
- return TRUE;
- }
-
- // Bail if window client region is not drawable, like in Solid Edge
- if (!IsWindow(hWnd) /* || !IsWindowVisible(hWnd) */ || !GetClientRect(hWnd, &rSrcRect))
- return TRUE;
-
-#ifdef GLD_THREADS
- // Serialize access to DirectDraw or DDS operations
- if (glb.bMultiThreaded)
- EnterCriticalSection(&CriticalSection);
-#endif
-
-#ifdef _USE_GLD3_WGL
- // Notify Mesa of impending swap, so Mesa can flush internal buffers.
- _mesa_notifySwapBuffers(lpCtx->glCtx);
- // Now perform driver buffer swap
- _gldDriver.SwapBuffers(lpCtx, hDC, hWnd);
-#else
- if (lpCtx->bFullscreen) {
- // Sync with retrace if required
- if (glb.bWaitForRetrace) {
- IDirectDraw4_WaitForVerticalBlank(
- lpCtx->lpDD4,
- DDWAITVB_BLOCKBEGIN,
- 0);
- }
-
- // Perform the fullscreen flip
- TRY(IDirectDrawSurface4_Flip(
- lpCtx->lpFront4,
- NULL,
- DDFLIP_WAIT),
- "dglSwapBuffers: Flip");
- } else {
- // Calculate current window position and size
- pt.x = pt.y = 0;
- ClientToScreen(hWnd, &pt);
- GetClientRect(hWnd, &rDstRect);
- if (rDstRect.right > lpCtx->dwModeWidth)
- rDstRect.right = lpCtx->dwModeWidth;
- if (rDstRect.bottom > lpCtx->dwModeHeight)
- rDstRect.bottom = lpCtx->dwModeHeight;
- OffsetRect(&rDstRect, pt.x, pt.y);
- rSrcRect.left = rSrcRect.top = 0;
- rSrcRect.right = lpCtx->dwWidth;
- rSrcRect.bottom = lpCtx->dwHeight;
- if (rSrcRect.right > lpCtx->dwModeWidth)
- rSrcRect.right = lpCtx->dwModeWidth;
- if (rSrcRect.bottom > lpCtx->dwModeHeight)
- rSrcRect.bottom = lpCtx->dwModeHeight;
-
- if (glb.bWaitForRetrace) {
- // Sync the blit to the vertical retrace
- ZeroMemory(&bltFX, sizeof(bltFX));
- bltFX.dwSize = sizeof(bltFX);
- bltFX.dwDDFX = DDBLTFX_NOTEARING;
- dwBlitFlags = DDBLT_WAIT | DDBLT_DDFX;
- lpBltFX = &bltFX;
- } else {
- dwBlitFlags = DDBLT_WAIT;
- lpBltFX = NULL;
- }
-
- // Perform the actual blit
- TRY(IDirectDrawSurface4_Blt(
- lpCtx->lpFront4,
- &rDstRect,
- lpCtx->lpBack4, // Blit source
- &rSrcRect,
- dwBlitFlags,
- lpBltFX),
- "dglSwapBuffers: Blt");
- }
-#endif // _USE_GLD3_WGL
-
-#ifdef GLD_THREADS
- // Release serialized access
- if (glb.bMultiThreaded)
- LeaveCriticalSection(&CriticalSection);
-#endif
-
- // TODO: Re-instate rendering bitmap snapshot feature??? (DaveM)
-
- // Render frame is completed
- ValidateRect(hWnd, NULL);
- lpCtx->bFrameStarted = FALSE;
-
- return TRUE;
-}
-
-// ***********************************************************************
+/****************************************************************************
+*
+* Mesa 3-D graphics library
+* Direct3D Driver Interface
+*
+* ========================================================================
+*
+* Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* ======================================================================
+*
+* Language: ANSI C
+* Environment: Windows 9x (Win32)
+*
+* Description: Context handling.
+*
+****************************************************************************/
+
+#include "dglcontext.h"
+
+// Get compile errors without this. KeithH
+//#include "scitech.h" // ibool, etc.
+
+#ifdef _USE_GLD3_WGL
+#include "gld_driver.h"
+
+extern void _gld_mesa_warning(struct gl_context *, char *);
+extern void _gld_mesa_fatal(struct gl_context *, char *);
+#endif // _USE_GLD3_WGL
+
+// TODO: Clean out old DX6-specific code from GLD 2.x CAD driver
+// if it is no longer being built as part of GLDirect. (DaveM)
+
+// ***********************************************************************
+
+#define GLDERR_NONE 0
+#define GLDERR_MEM 1
+#define GLDERR_DDRAW 2
+#define GLDERR_D3D 3
+#define GLDERR_BPP 4
+
+char szResourceWarning[] =
+"GLDirect does not have enough video memory resources\n"
+"to support the requested OpenGL rendering context.\n\n"
+"You may have to reduce the current display resolution\n"
+"to obtain satisfactory OpenGL performance.\n";
+
+char szDDrawWarning[] =
+"GLDirect is unable to initialize DirectDraw for the\n"
+"requested OpenGL rendering context.\n\n"
+"You will have to check the DirectX control panel\n"
+"for further information.\n";
+
+char szD3DWarning[] =
+"GLDirect is unable to initialize Direct3D for the\n"
+"requested OpenGL rendering context.\n\n"
+"You may have to change the display mode resolution\n"
+"color depth or check the DirectX control panel for\n"
+"further information.\n";
+
+char szBPPWarning[] =
+"GLDirect is unable to use the selected color depth for\n"
+"the requested OpenGL rendering context.\n\n"
+"You will have to change the display mode resolution\n"
+"color depth with the Display Settings control panel.\n";
+
+int nContextError = GLDERR_NONE;
+
+// ***********************************************************************
+
+#define VENDORID_ATI 0x1002
+
+static DWORD devATIRagePro[] = {
+ 0x4742, // 3D RAGE PRO BGA AGP 1X/2X
+ 0x4744, // 3D RAGE PRO BGA AGP 1X only
+ 0x4749, // 3D RAGE PRO BGA PCI 33 MHz
+ 0x4750, // 3D RAGE PRO PQFP PCI 33 MHz
+ 0x4751, // 3D RAGE PRO PQFP PCI 33 MHz limited 3D
+ 0x4C42, // 3D RAGE LT PRO BGA-312 AGP 133 MHz
+ 0x4C44, // 3D RAGE LT PRO BGA-312 AGP 66 MHz
+ 0x4C49, // 3D RAGE LT PRO BGA-312 PCI 33 MHz
+ 0x4C50, // 3D RAGE LT PRO BGA-256 PCI 33 MHz
+ 0x4C51, // 3D RAGE LT PRO BGA-256 PCI 33 MHz limited 3D
+};
+
+static DWORD devATIRageIIplus[] = {
+ 0x4755, // 3D RAGE II+
+ 0x4756, // 3D RAGE IIC PQFP PCI
+ 0x4757, // 3D RAGE IIC BGA AGP
+ 0x475A, // 3D RAGE IIC PQFP AGP
+ 0x4C47, // 3D RAGE LT-G
+};
+
+// ***********************************************************************
+
+#ifndef _USE_GLD3_WGL
+extern DGL_mesaFuncs mesaFuncs;
+#endif
+
+extern DWORD dwLogging;
+
+#ifdef GLD_THREADS
+#pragma message("compiling DGLCONTEXT.C vars for multi-threaded support")
+CRITICAL_SECTION CriticalSection; // for serialized access
+DWORD dwTLSCurrentContext = 0xFFFFFFFF; // TLS index for current context
+DWORD dwTLSPixelFormat = 0xFFFFFFFF; // TLS index for current pixel format
+#endif
+HGLRC iCurrentContext = 0; // Index of current context (static)
+BOOL bContextReady = FALSE; // Context state ready ?
+
+DGL_ctx ctxlist[DGL_MAX_CONTEXTS]; // Context list
+
+// ***********************************************************************
+
+static BOOL bHaveWin95 = FALSE;
+static BOOL bHaveWinNT = FALSE;
+static BOOL bHaveWin2K = FALSE;
+
+/****************************************************************************
+REMARKS:
+Detect the installed OS type.
+****************************************************************************/
+static void DetectOS(void)
+{
+ OSVERSIONINFO VersionInformation;
+ LPOSVERSIONINFO lpVersionInformation = &VersionInformation;
+
+ VersionInformation.dwOSVersionInfoSize = sizeof(VersionInformation);
+
+ GetVersionEx(lpVersionInformation);
+
+ switch (VersionInformation.dwPlatformId) {
+ case VER_PLATFORM_WIN32_WINDOWS:
+ bHaveWin95 = TRUE;
+ bHaveWinNT = FALSE;
+ bHaveWin2K = FALSE;
+ break;
+ case VER_PLATFORM_WIN32_NT:
+ bHaveWin95 = FALSE;
+ if (VersionInformation.dwMajorVersion <= 4) {
+ bHaveWinNT = TRUE;
+ bHaveWin2K = FALSE;
+ }
+ else {
+ bHaveWinNT = FALSE;
+ bHaveWin2K = TRUE;
+ }
+ break;
+ case VER_PLATFORM_WIN32s:
+ bHaveWin95 = FALSE;
+ bHaveWinNT = FALSE;
+ bHaveWin2K = FALSE;
+ break;
+ }
+}
+
+// ***********************************************************************
+
+HWND hWndEvent = NULL; // event monitor window
+HWND hWndLastActive = NULL; // last active client window
+LONG __stdcall GLD_EventWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);
+
+// ***********************************************************************
+
+// Checks if the HGLRC is valid in range of context list.
+BOOL dglIsValidContext(
+ HGLRC a)
+{
+ return ((int)a > 0 && (int)a <= DGL_MAX_CONTEXTS);
+}
+
+// ***********************************************************************
+
+// Convert a HGLRC to a pointer into the context list.
+DGL_ctx* dglGetContextAddress(
+ const HGLRC a)
+{
+ if (dglIsValidContext(a))
+ return &ctxlist[(int)a-1];
+ return NULL;
+}
+
+// ***********************************************************************
+
+// Return the current HGLRC (however it may be stored for multi-threading).
+HGLRC dglGetCurrentContext(void)
+{
+#ifdef GLD_THREADS
+ HGLRC hGLRC;
+ // load from thread-specific instance
+ if (glb.bMultiThreaded) {
+ // protect against calls from arbitrary threads
+ __try {
+ hGLRC = (HGLRC)TlsGetValue(dwTLSCurrentContext);
+ }
+ __except(EXCEPTION_EXECUTE_HANDLER) {
+ hGLRC = iCurrentContext;
+ }
+ }
+ // load from global static var
+ else {
+ hGLRC = iCurrentContext;
+ }
+ return hGLRC;
+#else
+ return iCurrentContext;
+#endif
+}
+
+// ***********************************************************************
+
+// Set the current HGLRC (however it may be stored for multi-threading).
+void dglSetCurrentContext(HGLRC hGLRC)
+{
+#ifdef GLD_THREADS
+ // store in thread-specific instance
+ if (glb.bMultiThreaded) {
+ // protect against calls from arbitrary threads
+ __try {
+ TlsSetValue(dwTLSCurrentContext, (LPVOID)hGLRC);
+ }
+ __except(EXCEPTION_EXECUTE_HANDLER) {
+ iCurrentContext = hGLRC;
+ }
+ }
+ // store in global static var
+ else {
+ iCurrentContext = hGLRC;
+ }
+#else
+ iCurrentContext = hGLRC;
+#endif
+}
+
+// ***********************************************************************
+
+// Return the current HDC only for a currently active HGLRC.
+HDC dglGetCurrentDC(void)
+{
+ HGLRC hGLRC;
+ DGL_ctx* lpCtx;
+
+ hGLRC = dglGetCurrentContext();
+ if (hGLRC) {
+ lpCtx = dglGetContextAddress(hGLRC);
+ return lpCtx->hDC;
+ }
+ return 0;
+}
+
+// ***********************************************************************
+
+void dglInitContextState()
+{
+ int i;
+ WNDCLASS wc;
+
+#ifdef GLD_THREADS
+ // Allocate thread local storage indexes for current context and pixel format
+ dwTLSCurrentContext = TlsAlloc();
+ dwTLSPixelFormat = TlsAlloc();
+#endif
+
+ dglSetCurrentContext(NULL); // No current rendering context
+
+ // Clear all context data
+ ZeroMemory(ctxlist, sizeof(ctxlist[0]) * DGL_MAX_CONTEXTS);
+
+ for (i=0; i<DGL_MAX_CONTEXTS; i++)
+ ctxlist[i].bAllocated = FALSE; // Flag context as unused
+
+ // This section of code crashes the dll in circumstances where the app
+ // creates and destroys contexts.
+/*
+ // Register the class for our event monitor window
+ wc.style = 0;
+ wc.lpfnWndProc = GLD_EventWndProc;
+ wc.cbClsExtra = 0;
+ wc.cbWndExtra = 0;
+ wc.hInstance = GetModuleHandle(NULL);
+ wc.hIcon = LoadIcon(GetModuleHandle(NULL), IDI_APPLICATION);
+ wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+ wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
+ wc.lpszMenuName = NULL;
+ wc.lpszClassName = "GLDIRECT";
+ RegisterClass(&wc);
+
+ // Create the non-visible window to monitor all broadcast messages
+ hWndEvent = CreateWindowEx(
+ WS_EX_TOOLWINDOW,"GLDIRECT","GLDIRECT",WS_POPUP,
+ 0,0,0,0,
+ NULL,NULL,GetModuleHandle(NULL),NULL);
+*/
+
+#ifdef GLD_THREADS
+ // Create a critical section object for serializing access to
+ // DirectDraw and DDStereo create/destroy functions in multiple threads
+ if (glb.bMultiThreaded)
+ InitializeCriticalSection(&CriticalSection);
+#endif
+
+ // Context state is now initialized and ready
+ bContextReady = TRUE;
+}
+
+// ***********************************************************************
+
+void dglDeleteContextState()
+{
+ int i;
+ static BOOL bOnceIsEnough = FALSE;
+
+ // Only call once, from either DGL_exitDriver(), or DLL_PROCESS_DETACH
+ if (bOnceIsEnough)
+ return;
+ bOnceIsEnough = TRUE;
+
+ for (i=0; i<DGL_MAX_CONTEXTS; i++) {
+ if (ctxlist[i].bAllocated == TRUE) {
+ ddlogPrintf(DDLOG_WARN, "** Context %i not deleted - cleaning up.", (i+1));
+ dglDeleteContext((HGLRC)(i+1));
+ }
+ }
+
+ // Context state is no longer ready
+ bContextReady = FALSE;
+
+ // If executed when DLL unloads, DDraw objects may be invalid.
+ // So catch any page faults with this exception handler.
+__try {
+
+ // Release final DirectDraw interfaces
+ if (glb.bDirectDrawPersistant) {
+// RELEASE(glb.lpGlobalPalette);
+// RELEASE(glb.lpDepth4);
+// RELEASE(glb.lpBack4);
+// RELEASE(glb.lpPrimary4);
+// RELEASE(glb.lpDD4);
+ }
+}
+__except(EXCEPTION_EXECUTE_HANDLER) {
+ ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContextState.");
+}
+
+ // Destroy our event monitor window
+ if (hWndEvent) {
+ DestroyWindow(hWndEvent);
+ hWndEvent = hWndLastActive = NULL;
+ }
+
+#ifdef GLD_THREADS
+ // Destroy the critical section object
+ if (glb.bMultiThreaded)
+ DeleteCriticalSection(&CriticalSection);
+
+ // Release thread local storage indexes for current HGLRC and pixel format
+ TlsFree(dwTLSPixelFormat);
+ TlsFree(dwTLSCurrentContext);
+#endif
+}
+
+// ***********************************************************************
+
+// Application Window message handler interception
+static LONG __stdcall dglWndProc(
+ HWND hwnd,
+ UINT msg,
+ WPARAM wParam,
+ LPARAM lParam)
+{
+ DGL_ctx* lpCtx = NULL;
+ LONG lpfnWndProc = 0L;
+ int i;
+ HGLRC hGLRC;
+ RECT rect;
+ PAINTSTRUCT ps;
+ BOOL bQuit = FALSE;
+ BOOL bMain = FALSE;
+ LONG rc;
+
+ // Get the window's message handler *before* it is unhooked in WM_DESTROY
+
+ // Is this the main window?
+ if (hwnd == glb.hWndActive) {
+ bMain = TRUE;
+ lpfnWndProc = glb.lpfnWndProc;
+ }
+ // Search for DGL context matching window handle
+ for (i=0; i<DGL_MAX_CONTEXTS; i++) {
+ if (ctxlist[i].hWnd == hwnd) {
+ lpCtx = &ctxlist[i];
+ lpfnWndProc = lpCtx->lpfnWndProc;
+ break;
+ }
+ }
+ // Not one of ours...
+ if (!lpfnWndProc)
+ return DefWindowProc(hwnd, msg, wParam, lParam);
+
+ // Intercept messages amd process *before* passing on to window
+ switch (msg) {
+#ifdef _USE_GLD3_WGL
+ case WM_DISPLAYCHANGE:
+ glb.bPixelformatsDirty = TRUE;
+ break;
+#endif
+ case WM_ACTIVATEAPP:
+ glb.bAppActive = (BOOL)wParam;
+ ddlogPrintf(DDLOG_INFO, "Calling app has been %s", glb.bAppActive ? "activated" : "de-activated");
+ break;
+ case WM_ERASEBKGND:
+ // Eat the GDI erase event for the GL window
+ if (!lpCtx || !lpCtx->bHasBeenCurrent)
+ break;
+ lpCtx->bGDIEraseBkgnd = TRUE;
+ return TRUE;
+ case WM_PAINT:
+ // Eat the invalidated update region if render scene is in progress
+ if (!lpCtx || !lpCtx->bHasBeenCurrent)
+ break;
+ if (lpCtx->bFrameStarted) {
+ if (GetUpdateRect(hwnd, &rect, FALSE)) {
+ BeginPaint(hwnd, &ps);
+ EndPaint(hwnd, &ps);
+ ValidateRect(hwnd, &rect);
+ return TRUE;
+ }
+ }
+ break;
+ }
+ // Call the appropriate window message handler
+ rc = CallWindowProc((WNDPROC)lpfnWndProc, hwnd, msg, wParam, lParam);
+
+ // Intercept messages and process *after* passing on to window
+ switch (msg) {
+ case WM_QUIT:
+ case WM_DESTROY:
+ bQuit = TRUE;
+ if (lpCtx && lpCtx->bAllocated) {
+ ddlogPrintf(DDLOG_WARN, "WM_DESTROY detected for HWND=%X, HDC=%X, HGLRC=%d", hwnd, lpCtx->hDC, i+1);
+ dglDeleteContext((HGLRC)(i+1));
+ }
+ break;
+#if 0
+ case WM_SIZE:
+ // Resize surfaces to fit window but not viewport (in case app did not bother)
+ if (!lpCtx || !lpCtx->bHasBeenCurrent)
+ break;
+ w = LOWORD(lParam);
+ h = HIWORD(lParam);
+ if (lpCtx->dwWidth < w || lpCtx->dwHeight < h) {
+ if (!dglWglResizeBuffers(lpCtx->glCtx, TRUE))
+ dglWglResizeBuffers(lpCtx->glCtx, FALSE);
+ }
+ break;
+#endif
+ }
+
+ // If the main window is quitting, then so should we...
+ if (bMain && bQuit) {
+ ddlogPrintf(DDLOG_SYSTEM, "shutting down after WM_DESTROY detected for main HWND=%X", hwnd);
+ dglDeleteContextState();
+ dglExitDriver();
+ }
+
+ return rc;
+}
+
+// ***********************************************************************
+
+// Driver Window message handler
+static LONG __stdcall GLD_EventWndProc(
+ HWND hwnd,
+ UINT msg,
+ WPARAM wParam,
+ LPARAM lParam)
+{
+ switch (msg) {
+ // May be sent by splash screen dialog on exit
+ case WM_ACTIVATE:
+ if (LOWORD(wParam) == WA_ACTIVE && glb.hWndActive) {
+ SetForegroundWindow(glb.hWndActive);
+ return 0;
+ }
+ break;
+ }
+ return DefWindowProc(hwnd, msg, wParam, lParam);
+}
+
+// ***********************************************************************
+
+// Intercepted Keyboard handler for detecting hot keys.
+LRESULT CALLBACK dglKeyProc(
+ int code,
+ WPARAM wParam,
+ LPARAM lParam)
+{
+ HWND hWnd, hWndFrame;
+ HGLRC hGLRC = NULL;
+ DGL_ctx* lpCtx = NULL;
+ int cmd = 0, dx1 = 0, dx2 = 0, i;
+ static BOOL bAltPressed = FALSE;
+ static BOOL bCtrlPressed = FALSE;
+ static BOOL bShiftPressed = FALSE;
+ RECT r, rf, rc;
+ POINT pt;
+ BOOL bForceReshape = FALSE;
+
+ return CallNextHookEx(hKeyHook, code, wParam, lParam);
+}
+
+// ***********************************************************************
+
+HWND hWndMatch;
+
+// Window handle enumeration procedure.
+BOOL CALLBACK dglEnumChildProc(
+ HWND hWnd,
+ LPARAM lParam)
+{
+ RECT rect;
+
+ // Find window handle with matching client rect.
+ GetClientRect(hWnd, &rect);
+ if (EqualRect(&rect, (RECT*)lParam)) {
+ hWndMatch = hWnd;
+ return FALSE;
+ }
+ // Continue with next child window.
+ return TRUE;
+}
+
+// ***********************************************************************
+
+// Find window handle with matching client rect.
+HWND dglFindWindowRect(
+ RECT* pRect)
+{
+ hWndMatch = NULL;
+ EnumChildWindows(GetForegroundWindow(), dglEnumChildProc, (LPARAM)pRect);
+ return hWndMatch;
+}
+
+// ***********************************************************************
+#ifndef _USE_GLD3_WGL
+void dglChooseDisplayMode(
+ DGL_ctx *lpCtx)
+{
+ // Note: Choose an exact match if possible.
+
+ int i;
+ DWORD area;
+ DWORD bestarea;
+ DDSURFACEDESC2 *lpDDSD = NULL; // Mode list pointer
+ DDSURFACEDESC2 *lpBestDDSD = NULL; // Pointer to best
+
+ lpDDSD = glb.lpDisplayModes;
+ for (i=0; i<glb.nDisplayModeCount; i++, lpDDSD++) {
+ if ((lpDDSD->dwWidth == lpCtx->dwWidth) &&
+ (lpDDSD->dwHeight == lpCtx->dwHeight))
+ goto matched; // Mode has been exactly matched
+ // Choose modes that are larger in both dimensions than
+ // the window, but smaller in area than the current best.
+ if ( (lpDDSD->dwWidth >= lpCtx->dwWidth) &&
+ (lpDDSD->dwHeight >= lpCtx->dwHeight))
+ {
+ if (lpBestDDSD == NULL) {
+ lpBestDDSD = lpDDSD;
+ bestarea = lpDDSD->dwWidth * lpDDSD->dwHeight;
+ continue;
+ }
+ area = lpDDSD->dwWidth * lpDDSD->dwHeight;
+ if (area < bestarea) {
+ lpBestDDSD = lpDDSD;
+ bestarea = area;
+ }
+ }
+ }
+
+ // Safety check
+ if (lpBestDDSD == NULL) {
+ ddlogMessage(DDLOG_CRITICAL, "dglChooseDisplayMode");
+ return;
+ }
+
+ lpCtx->dwModeWidth = lpBestDDSD->dwWidth;
+ lpCtx->dwModeHeight = lpBestDDSD->dwHeight;
+matched:
+ ddlogPrintf(DDLOG_INFO, "Matched (%ldx%ld) to (%ldx%ld)",
+ lpCtx->dwWidth, lpCtx->dwHeight, lpCtx->dwModeWidth, lpCtx->dwModeHeight);
+}
+#endif // _USE_GLD3_WGL
+// ***********************************************************************
+
+static BOOL IsDevice(
+ DWORD *lpDeviceIdList,
+ DWORD dwDeviceId,
+ int count)
+{
+ int i;
+
+ for (i=0; i<count; i++)
+ if (dwDeviceId == lpDeviceIdList[i])
+ return TRUE;
+
+ return FALSE;
+}
+
+// ***********************************************************************
+
+void dglTestForBrokenCards(
+ DGL_ctx *lpCtx)
+{
+#ifndef _GLD3
+ DDDEVICEIDENTIFIER dddi; // DX6 device identifier
+
+ // Sanity check.
+ if (lpCtx == NULL) {
+ // Testing for broken cards is sensitive area, so we don't want
+ // anything saying "broken cards" in the error message. ;)
+ ddlogMessage(DDLOG_ERROR, "Null context passed to TFBC\n");
+ return;
+ }
+
+ if (lpCtx->lpDD4 == NULL) {
+ // Testing for broken cards is sensitive area, so we don't want
+ // anything saying "broken cards" in the error message. ;)
+ ddlogMessage(DDLOG_ERROR, "Null DD4 passed to TFBC\n");
+ return;
+ }
+
+ // Microsoft really fucked up with the GetDeviceIdentifier function
+ // on Windows 2000, since it locks up on stock driers on the CD. Updated
+ // drivers from vendors appear to work, but we can't identify the drivers
+ // without this function!!! For now we skip these tests on Windows 2000.
+ if ((GetVersion() & 0x80000000UL) == 0)
+ return;
+
+ // Obtain device info
+ if (FAILED(IDirectDraw4_GetDeviceIdentifier(lpCtx->lpDD4, &dddi, 0)))
+ return;
+
+ // Useful info. Log it.
+ ddlogPrintf(DDLOG_INFO, "DirectDraw: VendorId=0x%x, DeviceId=0x%x", dddi.dwVendorId, dddi.dwDeviceId);
+
+ // Vendor 1: ATI
+ if (dddi.dwVendorId == VENDORID_ATI) {
+ // Test A: ATI Rage PRO
+ if (IsDevice(devATIRagePro, dddi.dwDeviceId, sizeof(devATIRagePro)))
+ glb.bUseMipmaps = FALSE;
+ // Test B: ATI Rage II+
+ if (IsDevice(devATIRageIIplus, dddi.dwDeviceId, sizeof(devATIRageIIplus)))
+ glb.bEmulateAlphaTest = TRUE;
+ }
+
+ // Vendor 2: Matrox
+ if (dddi.dwVendorId == 0x102B) {
+ // Test: Matrox G400 stencil buffer support does not work for AutoCAD
+ if (dddi.dwDeviceId == 0x0525) {
+ lpCtx->lpPF->pfd.cStencilBits = 0;
+ if (lpCtx->lpPF->iZBufferPF != -1) {
+ glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitDepth = 0;
+ glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwStencilBitMask = 0;
+ glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags &= ~DDPF_STENCILBUFFER;
+ }
+ }
+ }
+#endif // _GLD3
+}
+
+// ***********************************************************************
+
+BOOL dglCreateContextBuffers(
+ HDC a,
+ DGL_ctx *lpCtx,
+ BOOL bFallback)
+{
+ HRESULT hResult;
+
+ int i;
+// HGLRC hGLRC;
+// DGL_ctx* lpCtx;
+
+#ifndef _USE_GLD3_WGL
+ DWORD dwFlags;
+ DDSURFACEDESC2 ddsd2;
+ DDSCAPS2 ddscaps2;
+ LPDIRECTDRAWCLIPPER lpddClipper;
+ D3DDEVICEDESC D3DHWDevDesc; // Direct3D Hardware description
+ D3DDEVICEDESC D3DHELDevDesc; // Direct3D Hardware Emulation Layer
+#endif // _USE_GLD3_WGL
+
+ float inv_aspect;
+
+ GLenum bDoubleBuffer; // TRUE if double buffer required
+ GLenum bDepthBuffer; // TRUE if depth buffer required
+
+ const PIXELFORMATDESCRIPTOR *lpPFD = &lpCtx->lpPF->pfd;
+
+ // Vars for Mesa visual
+ DWORD dwDepthBits = 0;
+ DWORD dwStencilBits = 0;
+ DWORD dwAlphaBits = 0;
+ DWORD bAlphaSW = GL_FALSE;
+ DWORD bDouble = GL_FALSE;
+
+ DDSURFACEDESC2 ddsd2DisplayMode;
+ BOOL bFullScrnWin = FALSE; // fullscreen-size window ?
+ DDBLTFX ddbltfx;
+ DWORD dwMemoryType = (bFallback) ? DDSCAPS_SYSTEMMEMORY : glb.dwMemoryType;
+ BOOL bBogusWindow = FALSE; // non-drawable window ?
+ DWORD dwColorRef = 0; // GDI background color
+ RECT rcDst; // GDI window rect
+ POINT pt; // GDI window point
+
+ // Palette used for creating default global palette
+ PALETTEENTRY ppe[256];
+
+#ifndef _USE_GLD3_WGL
+ // Vertex buffer description. Used for creation of vertex buffers
+ D3DVERTEXBUFFERDESC vbufdesc;
+#endif // _USE_GLD3_WGL
+
+#define DDLOG_CRITICAL_OR_WARN (bFallback ? DDLOG_CRITICAL : DDLOG_WARN)
+
+ ddlogPrintf(DDLOG_SYSTEM, "dglCreateContextBuffers for HDC=%X", a);
+ nContextError = GLDERR_NONE;
+
+#ifdef GLD_THREADS
+ // Serialize access to DirectDraw object creation or DDS start
+ if (glb.bMultiThreaded)
+ EnterCriticalSection(&CriticalSection);
+#endif
+
+ // Check for back buffer
+ bDoubleBuffer = GL_TRUE; //(lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE;
+ // Since we always do back buffering, check if we emulate front buffering
+ lpCtx->EmulateSingle =
+ (lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;
+#if 0 // Don't have to mimic MS OpenGL behavior for front-buffering (DaveM)
+ lpCtx->EmulateSingle |=
+ (lpPFD->dwFlags & PFD_SUPPORT_GDI) ? TRUE : FALSE;
+#endif
+
+ // Check for depth buffer
+ bDepthBuffer = (lpPFD->cDepthBits) ? GL_TRUE : GL_FALSE;
+
+ lpCtx->bDoubleBuffer = bDoubleBuffer;
+ lpCtx->bDepthBuffer = bDepthBuffer;
+
+ // Set the Fullscreen flag for the context.
+// lpCtx->bFullscreen = glb.bFullscreen;
+
+ // Obtain the dimensions of the rendering window
+ lpCtx->hDC = a; // Cache DC
+ lpCtx->hWnd = WindowFromDC(lpCtx->hDC);
+ // Check for non-window DC = memory DC ?
+ if (lpCtx->hWnd == NULL) {
+ // bitmap memory contexts are always single-buffered
+ lpCtx->EmulateSingle = TRUE;
+ bBogusWindow = TRUE;
+ ddlogPrintf(DDLOG_INFO, "Non-Window Memory Device Context");
+ if (GetClipBox(lpCtx->hDC, &lpCtx->rcScreenRect) == ERROR) {
+ ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglCreateContext\n");
+ SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
+ }
+ }
+ else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {
+ bBogusWindow = TRUE;
+ ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglCreateContext\n");
+ SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
+ }
+ lpCtx->dwWidth = lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left;
+ lpCtx->dwHeight = lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top;
+
+ ddlogPrintf(DDLOG_INFO, "Input window %X: w=%i, h=%i",
+ lpCtx->hWnd, lpCtx->dwWidth, lpCtx->dwHeight);
+
+ // What if app only zeroes one dimension instead of both? (DaveM)
+ if ( (lpCtx->dwWidth == 0) || (lpCtx->dwHeight == 0) ) {
+ // Make the buffer size something sensible
+ lpCtx->dwWidth = 8;
+ lpCtx->dwHeight = 8;
+ }
+
+ // Set defaults
+ lpCtx->dwModeWidth = lpCtx->dwWidth;
+ lpCtx->dwModeHeight = lpCtx->dwHeight;
+/*
+ // Find best display mode for fullscreen
+ if (glb.bFullscreen || !glb.bPrimary) {
+ dglChooseDisplayMode(lpCtx);
+ }
+*/
+ // Misc initialisation
+ lpCtx->bCanRender = FALSE; // No rendering allowed yet
+ lpCtx->bSceneStarted = FALSE;
+ lpCtx->bFrameStarted = FALSE;
+
+ // Detect OS (specifically 'Windows 2000' or 'Windows XP')
+ DetectOS();
+
+ // NOTE: WinNT not supported
+ ddlogPrintf(DDLOG_INFO, "OS: %s", bHaveWin95 ? "Win9x" : (bHaveWin2K ? "Win2000/XP" : "Unsupported") );
+
+ // Test for Fullscreen
+ if (bHaveWin95) { // Problems with fullscreen on Win2K/XP
+ if ((GetSystemMetrics(SM_CXSCREEN) == lpCtx->dwWidth) &&
+ (GetSystemMetrics(SM_CYSCREEN) == lpCtx->dwHeight))
+ {
+ // Workaround for some apps that crash when going fullscreen.
+ //lpCtx->bFullscreen = TRUE;
+ }
+
+ }
+
+#ifdef _USE_GLD3_WGL
+ _gldDriver.CreateDrawable(lpCtx, glb.bDirectDrawPersistant, glb.bPersistantBuffers);
+#else
+ // Check if DirectDraw has already been created by original GLRC (DaveM)
+ if (glb.bDirectDrawPersistant && glb.bDirectDraw) {
+ lpCtx->lpDD4 = glb.lpDD4;
+ IDirectDraw4_AddRef(lpCtx->lpDD4);
+ goto SkipDirectDrawCreate;
+ }
+
+ // Create DirectDraw object
+ if (glb.bPrimary)
+ hResult = DirectDrawCreate(NULL, &lpCtx->lpDD1, NULL);
+ else {
+ // A non-primary device is to be used.
+ // Force context to be Fullscreen, secondary adaptors can not
+ // be used in a window.
+ hResult = DirectDrawCreate(&glb.ddGuid, &lpCtx->lpDD1, NULL);
+ lpCtx->bFullscreen = TRUE;
+ }
+ if (FAILED(hResult)) {
+ MessageBox(NULL, "Unable to initialize DirectDraw", "GLDirect", MB_OK);
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw interface", hResult);
+ nContextError = GLDERR_DDRAW;
+ goto return_with_error;
+ }
+
+ // Query for DX6 IDirectDraw4.
+ hResult = IDirectDraw_QueryInterface(lpCtx->lpDD1,
+ &IID_IDirectDraw4,
+ (void**)&lpCtx->lpDD4);
+ if (FAILED(hResult)) {
+ MessageBox(NULL, "GLDirect requires DirectX 6.0 or above", "GLDirect", MB_OK);
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create DirectDraw4 interface", hResult);
+ nContextError = GLDERR_DDRAW;
+ goto return_with_error;
+ }
+
+ // Cache DirectDraw interface for subsequent GLRCs
+ if (glb.bDirectDrawPersistant && !glb.bDirectDraw) {
+ glb.lpDD4 = lpCtx->lpDD4;
+ IDirectDraw4_AddRef(glb.lpDD4);
+ glb.bDirectDraw = TRUE;
+ }
+SkipDirectDrawCreate:
+
+ // Now we have a DD4 interface we can check for broken cards
+ dglTestForBrokenCards(lpCtx);
+
+ // Test if primary device can use flipping instead of blitting
+ ZeroMemory(&ddsd2DisplayMode, sizeof(ddsd2DisplayMode));
+ ddsd2DisplayMode.dwSize = sizeof(ddsd2DisplayMode);
+ hResult = IDirectDraw4_GetDisplayMode(
+ lpCtx->lpDD4,
+ &ddsd2DisplayMode);
+ if (SUCCEEDED(hResult)) {
+ if ( (lpCtx->dwWidth == ddsd2DisplayMode.dwWidth) &&
+ (lpCtx->dwHeight == ddsd2DisplayMode.dwHeight) ) {
+ // We have a fullscreen-size window
+ bFullScrnWin = TRUE;
+ // OK to use DirectDraw fullscreen mode ?
+ if (glb.bPrimary && !glb.bFullscreenBlit && !lpCtx->EmulateSingle && !glb.bDirectDrawPersistant) {
+ lpCtx->bFullscreen = TRUE;
+ ddlogMessage(DDLOG_INFO, "Primary upgraded to page flipping.\n");
+ }
+ }
+ // Cache the display mode dimensions
+ lpCtx->dwModeWidth = ddsd2DisplayMode.dwWidth;
+ lpCtx->dwModeHeight = ddsd2DisplayMode.dwHeight;
+ }
+
+ // Clamp the effective window dimensions to primary surface.
+ // We need to do this for D3D viewport dimensions even if wide
+ // surfaces are supported. This also is a good idea for handling
+ // whacked-out window dimensions passed for non-drawable windows
+ // like Solid Edge. (DaveM)
+ if (lpCtx->dwWidth > ddsd2DisplayMode.dwWidth)
+ lpCtx->dwWidth = ddsd2DisplayMode.dwWidth;
+ if (lpCtx->dwHeight > ddsd2DisplayMode.dwHeight)
+ lpCtx->dwHeight = ddsd2DisplayMode.dwHeight;
+
+ // Check for non-RGB desktop resolution
+ if (!lpCtx->bFullscreen && ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount <= 8) {
+ ddlogPrintf(DDLOG_CRITICAL_OR_WARN, "Desktop color depth %d bpp not supported",
+ ddsd2DisplayMode.ddpfPixelFormat.dwRGBBitCount);
+ nContextError = GLDERR_BPP;
+ goto return_with_error;
+ }
+#endif // _USE_GLD3_WGL
+
+ ddlogPrintf(DDLOG_INFO, "Window: w=%i, h=%i (%s)",
+ lpCtx->dwWidth,
+ lpCtx->dwHeight,
+ lpCtx->bFullscreen ? "fullscreen" : "windowed");
+
+#ifndef _USE_GLD3_WGL
+ // Obtain ddraw caps
+ ZeroMemory(&lpCtx->ddCaps, sizeof(DDCAPS));
+ lpCtx->ddCaps.dwSize = sizeof(DDCAPS);
+ if (glb.bHardware) {
+ // Get HAL caps
+ IDirectDraw4_GetCaps(lpCtx->lpDD4, &lpCtx->ddCaps, NULL);
+ } else {
+ // Get HEL caps
+ IDirectDraw4_GetCaps(lpCtx->lpDD4, NULL, &lpCtx->ddCaps);
+ }
+
+ // If this flag is present then we can't default to Mesa
+ // SW rendering between BeginScene() and EndScene().
+ if (lpCtx->ddCaps.dwCaps2 & DDCAPS2_NO2DDURING3DSCENE) {
+ ddlogMessage(DDLOG_INFO,
+ "Warning : No 2D allowed during 3D scene.\n");
+ }
+
+ // Query for DX6 Direct3D3 interface
+ hResult = IDirectDraw4_QueryInterface(lpCtx->lpDD4,
+ &IID_IDirect3D3,
+ (void**)&lpCtx->lpD3D3);
+ if (FAILED(hResult)) {
+ MessageBox(NULL, "Unable to initialize Direct3D", "GLDirect", MB_OK);
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D interface", hResult);
+ nContextError = GLDERR_D3D;
+ goto return_with_error;
+ }
+
+ // Context creation
+ if (lpCtx->bFullscreen) {
+ // FULLSCREEN
+
+ // Disable warning popups when in fullscreen mode
+ ddlogWarnOption(FALSE);
+
+ // Have to release persistant primary surface if fullscreen mode
+ if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {
+ RELEASE(glb.lpPrimary4);
+ glb.bDirectDrawPrimary = FALSE;
+ }
+
+ dwFlags = DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_ALLOWREBOOT;
+ if (glb.bFastFPU)
+ dwFlags |= DDSCL_FPUSETUP; // fast FPU setup optional (DaveM)
+ hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, lpCtx->hWnd, dwFlags);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Exclusive Fullscreen mode", hResult);
+ goto return_with_error;
+ }
+
+ hResult = IDirectDraw4_SetDisplayMode(lpCtx->lpDD4,
+ lpCtx->dwModeWidth,
+ lpCtx->dwModeHeight,
+ lpPFD->cColorBits,
+ 0,
+ 0);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "SetDisplayMode failed", hResult);
+ goto return_with_error;
+ }
+
+ // ** The display mode has changed, so dont use MessageBox! **
+
+ ZeroMemory(&ddsd2, sizeof(ddsd2));
+ ddsd2.dwSize = sizeof(ddsd2);
+
+ if (bDoubleBuffer) {
+ // Double buffered
+ // Primary surface
+ ddsd2.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
+ ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |
+ DDSCAPS_FLIP |
+ DDSCAPS_COMPLEX |
+ DDSCAPS_3DDEVICE |
+ dwMemoryType;
+ ddsd2.dwBackBufferCount = 1;
+
+ hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
+ nContextError = GLDERR_MEM;
+ goto return_with_error;
+ }
+
+ // Render target surface
+ ZeroMemory(&ddscaps2, sizeof(ddscaps2)); // Clear the entire struct.
+ ddscaps2.dwCaps = DDSCAPS_BACKBUFFER;
+ hResult = IDirectDrawSurface4_GetAttachedSurface(lpCtx->lpFront4, &ddscaps2, &lpCtx->lpBack4);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "GetAttachedSurface failed", hResult);
+ nContextError = GLDERR_MEM;
+ goto return_with_error;
+ }
+ } else {
+ // Single buffered
+ // Primary surface
+ ddsd2.dwFlags = DDSD_CAPS;
+ ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE |
+ //DDSCAPS_3DDEVICE |
+ dwMemoryType;
+
+ hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
+ nContextError = GLDERR_MEM;
+ goto return_with_error;
+ }
+
+ lpCtx->lpBack4 = NULL;
+ }
+ } else {
+ // WINDOWED
+
+ // OK to enable warning popups in windowed mode
+ ddlogWarnOption(glb.bMessageBoxWarnings);
+
+ dwFlags = DDSCL_NORMAL;
+ if (glb.bMultiThreaded)
+ dwFlags |= DDSCL_MULTITHREADED;
+ if (glb.bFastFPU)
+ dwFlags |= DDSCL_FPUSETUP; // fast FPU setup optional (DaveM)
+ hResult = IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4,
+ lpCtx->hWnd,
+ dwFlags);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to set Normal coop level", hResult);
+ goto return_with_error;
+ }
+ // Has Primary surface already been created for original GLRC ?
+ // Note this can only be applicable for windowed modes
+ if (glb.bDirectDrawPersistant && glb.bDirectDrawPrimary) {
+ lpCtx->lpFront4 = glb.lpPrimary4;
+ IDirectDrawSurface4_AddRef(lpCtx->lpFront4);
+ // Update the window on the default clipper
+ IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);
+ IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
+ IDirectDrawClipper_Release(lpddClipper);
+ goto SkipPrimaryCreate;
+ }
+
+ // Primary surface
+ ZeroMemory(&ddsd2, sizeof(ddsd2));
+ ddsd2.dwSize = sizeof(ddsd2);
+ ddsd2.dwFlags = DDSD_CAPS;
+ ddsd2.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
+ hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpFront4, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (primary) failed", hResult);
+ nContextError = GLDERR_MEM;
+ goto return_with_error;
+ }
+
+ // Cache Primary surface for subsequent GLRCs
+ // Note this can only be applicable to subsequent windowed modes
+ if (glb.bDirectDrawPersistant && !glb.bDirectDrawPrimary) {
+ glb.lpPrimary4 = lpCtx->lpFront4;
+ IDirectDrawSurface4_AddRef(glb.lpPrimary4);
+ glb.bDirectDrawPrimary = TRUE;
+ }
+
+ // Clipper object
+ hResult = DirectDrawCreateClipper(0, &lpddClipper, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateClipper failed", hResult);
+ goto return_with_error;
+ }
+ hResult = IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
+ if (FAILED(hResult)) {
+ RELEASE(lpddClipper);
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "SetHWnd failed", hResult);
+ goto return_with_error;
+ }
+ hResult = IDirectDrawSurface4_SetClipper(lpCtx->lpFront4, lpddClipper);
+ RELEASE(lpddClipper); // We have finished with it.
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "SetClipper failed", hResult);
+ goto return_with_error;
+ }
+SkipPrimaryCreate:
+
+ if (bDoubleBuffer) {
+ // Render target surface
+ ZeroMemory(&ddsd2, sizeof(ddsd2));
+ ddsd2.dwSize = sizeof(ddsd2);
+ ddsd2.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;
+ ddsd2.dwWidth = lpCtx->dwWidth;
+ ddsd2.dwHeight = lpCtx->dwHeight;
+ ddsd2.ddsCaps.dwCaps = DDSCAPS_3DDEVICE |
+ DDSCAPS_OFFSCREENPLAIN |
+ dwMemoryType;
+
+ // Reserve the entire desktop size for persistant buffers option
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {
+ ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;
+ ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;
+ }
+ // Re-use original back buffer if persistant buffers exist
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpBack4)
+ hResult = IDirectDrawSurface4_AddRef(lpCtx->lpBack4 = glb.lpBack4);
+ else
+ hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpBack4, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Create Backbuffer failed", hResult);
+ nContextError = GLDERR_MEM;
+ goto return_with_error;
+ }
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpBack4)
+ IDirectDrawSurface4_AddRef(glb.lpBack4 = lpCtx->lpBack4);
+ } else {
+ lpCtx->lpBack4 = NULL;
+ }
+ }
+
+ //
+ // Now create the Z-buffer
+ //
+ lpCtx->bStencil = FALSE; // Default to no stencil buffer
+ if (bDepthBuffer && (lpCtx->lpPF->iZBufferPF != -1)) {
+ // Get z-buffer dimensions from the render target
+ // Setup the surface desc for the z-buffer.
+ ZeroMemory(&ddsd2, sizeof(ddsd2));
+ ddsd2.dwSize = sizeof(ddsd2);
+ ddsd2.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
+ ddsd2.ddsCaps.dwCaps = DDSCAPS_ZBUFFER | dwMemoryType;
+ ddsd2.dwWidth = lpCtx->dwWidth;
+ ddsd2.dwHeight = lpCtx->dwHeight;
+ memcpy(&ddsd2.ddpfPixelFormat,
+ &glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF],
+ sizeof(DDPIXELFORMAT) );
+
+ // Reserve the entire desktop size for persistant buffers option
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers) {
+ ddsd2.dwWidth = ddsd2DisplayMode.dwWidth;
+ ddsd2.dwHeight = ddsd2DisplayMode.dwHeight;
+ }
+
+ // Create a z-buffer
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4)
+ hResult = IDirectDrawSurface4_AddRef(lpCtx->lpDepth4 = glb.lpDepth4);
+ else
+ hResult = IDirectDraw4_CreateSurface(lpCtx->lpDD4, &ddsd2, &lpCtx->lpDepth4, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateSurface (ZBuffer) failed", hResult);
+ nContextError = GLDERR_MEM;
+ goto return_with_error;
+ }
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpDepth4)
+ IDirectDrawSurface4_AddRef(glb.lpDepth4 = lpCtx->lpDepth4);
+ else if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpDepth4 && glb.lpBack4)
+ IDirectDrawSurface4_DeleteAttachedSurface(glb.lpBack4, 0, glb.lpDepth4);
+
+ // Attach Zbuffer to render target
+ TRY(IDirectDrawSurface4_AddAttachedSurface(
+ bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,
+ lpCtx->lpDepth4),
+ "dglCreateContext: Attach Zbuffer");
+ if (glb.lpZBufferPF[lpCtx->lpPF->iZBufferPF].dwFlags & DDPF_STENCILBUFFER) {
+ lpCtx->bStencil = TRUE;
+ ddlogMessage(DDLOG_INFO, "Depth buffer has stencil\n");
+ }
+ }
+
+ // Clear all back buffers and Z-buffers in case of memory recycling.
+ ZeroMemory(&ddbltfx, sizeof(ddbltfx));
+ ddbltfx.dwSize = sizeof(ddbltfx);
+ IDirectDrawSurface4_Blt(lpCtx->lpBack4, NULL, NULL, NULL,
+ DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);
+ if (lpCtx->lpDepth4)
+ IDirectDrawSurface4_Blt(lpCtx->lpDepth4, NULL, NULL, NULL,
+ DDBLT_COLORFILL | DDBLT_WAIT, &ddbltfx);
+
+ // Now that we have a Z-buffer we can create the 3D device
+ hResult = IDirect3D3_CreateDevice(lpCtx->lpD3D3,
+ &glb.d3dGuid,
+ bDoubleBuffer ? lpCtx->lpBack4 : lpCtx->lpFront4,
+ &lpCtx->lpDev3,
+ NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D device", hResult);
+ nContextError = GLDERR_D3D;
+ goto return_with_error;
+ }
+
+ // We must do this as soon as the device is created
+ dglInitStateCaches(lpCtx);
+
+ // Obtain the D3D Device Description
+ D3DHWDevDesc.dwSize = D3DHELDevDesc.dwSize = sizeof(D3DDEVICEDESC);
+ TRY(IDirect3DDevice3_GetCaps(lpCtx->lpDev3,
+ &D3DHWDevDesc,
+ &D3DHELDevDesc),
+ "dglCreateContext: GetCaps failed");
+
+ // Choose the relevant description and cache it in the context.
+ // We will use this description later for caps checking
+ memcpy( &lpCtx->D3DDevDesc,
+ glb.bHardware ? &D3DHWDevDesc : &D3DHELDevDesc,
+ sizeof(D3DDEVICEDESC));
+
+ // Now we can examine the texture formats
+ if (!dglBuildTextureFormatList(lpCtx->lpDev3)) {
+ ddlogMessage(DDLOG_CRITICAL_OR_WARN, "dglBuildTextureFormatList failed\n");
+ goto return_with_error;
+ }
+
+ // Get the pixel format of the back buffer
+ lpCtx->ddpfRender.dwSize = sizeof(lpCtx->ddpfRender);
+ if (bDoubleBuffer)
+ hResult = IDirectDrawSurface4_GetPixelFormat(
+ lpCtx->lpBack4,
+ &lpCtx->ddpfRender);
+ else
+ hResult = IDirectDrawSurface4_GetPixelFormat(
+ lpCtx->lpFront4,
+ &lpCtx->ddpfRender);
+
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "GetPixelFormat failed", hResult);
+ goto return_with_error;
+ }
+ // Find a pixel packing function suitable for this surface
+ pxClassifyPixelFormat(&lpCtx->ddpfRender,
+ &lpCtx->fnPackFunc,
+ &lpCtx->fnUnpackFunc,
+ &lpCtx->fnPackSpanFunc);
+
+ // Viewport
+ hResult = IDirect3D3_CreateViewport(lpCtx->lpD3D3, &lpCtx->lpViewport3, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateViewport failed", hResult);
+ goto return_with_error;
+ }
+
+ hResult = IDirect3DDevice3_AddViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "AddViewport failed", hResult);
+ goto return_with_error;
+ }
+
+ // Initialise the viewport
+ // Note screen coordinates are used for viewport clipping since D3D
+ // transform operations are not used in the GLD CAD driver. (DaveM)
+ inv_aspect = (float)lpCtx->dwHeight/(float)lpCtx->dwWidth;
+
+ lpCtx->d3dViewport.dwSize = sizeof(lpCtx->d3dViewport);
+ lpCtx->d3dViewport.dwX = 0;
+ lpCtx->d3dViewport.dwY = 0;
+ lpCtx->d3dViewport.dwWidth = lpCtx->dwWidth;
+ lpCtx->d3dViewport.dwHeight = lpCtx->dwHeight;
+ lpCtx->d3dViewport.dvClipX = 0; // -1.0f;
+ lpCtx->d3dViewport.dvClipY = 0; // inv_aspect;
+ lpCtx->d3dViewport.dvClipWidth = lpCtx->dwWidth; // 2.0f;
+ lpCtx->d3dViewport.dvClipHeight = lpCtx->dwHeight; // 2.0f * inv_aspect;
+ lpCtx->d3dViewport.dvMinZ = 0.0f;
+ lpCtx->d3dViewport.dvMaxZ = 1.0f;
+ TRY(IDirect3DViewport3_SetViewport2(lpCtx->lpViewport3, &lpCtx->d3dViewport), "dglCreateContext: SetViewport2");
+
+ hResult = IDirect3DDevice3_SetCurrentViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "SetCurrentViewport failed", hResult);
+ goto return_with_error;
+ }
+
+ lpCtx->dwBPP = lpPFD->cColorBits;
+ lpCtx->iZBufferPF = lpCtx->lpPF->iZBufferPF;
+
+ // Set last texture to NULL
+ for (i=0; i<MAX_TEXTURE_UNITS; i++) {
+ lpCtx->ColorOp[i] = D3DTOP_DISABLE;
+ lpCtx->AlphaOp[i] = D3DTOP_DISABLE;
+ lpCtx->tObj[i] = NULL;
+ }
+
+ // Default to perspective correct texture mapping
+ dglSetRenderState(lpCtx, D3DRENDERSTATE_TEXTUREPERSPECTIVE, TRUE, "TexturePersp");
+
+ // Set the default culling mode
+ lpCtx->cullmode = D3DCULL_NONE;
+ dglSetRenderState(lpCtx, D3DRENDERSTATE_CULLMODE, D3DCULL_NONE, "CullMode");
+
+ // Disable specular
+ dglSetRenderState(lpCtx, D3DRENDERSTATE_SPECULARENABLE, FALSE, "SpecularEnable");
+ // Disable subpixel correction
+// dglSetRenderState(lpCtx, D3DRENDERSTATE_SUBPIXEL, FALSE, "SubpixelEnable");
+ // Disable dithering
+ dglSetRenderState(lpCtx, D3DRENDERSTATE_DITHERENABLE, FALSE, "DitherEnable");
+
+ // Initialise the primitive caches
+// lpCtx->dwNextLineVert = 0;
+// lpCtx->dwNextTriVert = 0;
+
+ // Init the global texture palette
+ lpCtx->lpGlobalPalette = NULL;
+
+ // Init the HW/SW usage counters
+// lpCtx->dwHWUsageCount = lpCtx->dwSWUsageCount = 0L;
+
+ //
+ // Create two D3D vertex buffers.
+ // One will hold the pre-transformed data with the other one
+ // being used to hold the post-transformed & clipped verts.
+ //
+#if 0 // never used (DaveM)
+ vbufdesc.dwSize = sizeof(D3DVERTEXBUFFERDESC);
+ vbufdesc.dwCaps = D3DVBCAPS_WRITEONLY;
+ if (glb.bHardware == FALSE)
+ vbufdesc.dwCaps = D3DVBCAPS_SYSTEMMEMORY;
+ vbufdesc.dwNumVertices = 32768; // For the time being
+
+ // Source vertex buffer
+ vbufdesc.dwFVF = DGL_LVERTEX;
+ hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_vbuf, 0, NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(src) failed", hResult);
+ goto return_with_error;
+ }
+
+ // Destination vertex buffer
+ vbufdesc.dwFVF = (glb.bMultitexture == FALSE) ? D3DFVF_TLVERTEX : (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX2);
+ hResult = IDirect3D3_CreateVertexBuffer(lpCtx->lpD3D3, &vbufdesc, &lpCtx->m_pvbuf, 0, NULL);
+ if(FAILED(hResult)) {
+ ddlogError(DDLOG_CRITICAL_OR_WARN, "CreateVertexBuffer(dst) failed", hResult);
+ goto return_with_error;
+ }
+#endif
+
+#endif _USE_GLD3_WGL
+
+ //
+ // Now create the Mesa context
+ //
+
+ // Create the Mesa visual
+ if (lpPFD->cDepthBits)
+ dwDepthBits = 16;
+ if (lpPFD->cStencilBits)
+ dwStencilBits = 8;
+ if (lpPFD->cAlphaBits) {
+ dwAlphaBits = 8;
+ bAlphaSW = GL_TRUE;
+ }
+ if (lpPFD->dwFlags & PFD_DOUBLEBUFFER)
+ bDouble = GL_TRUE;
+// lpCtx->EmulateSingle =
+// (lpPFD->dwFlags & PFD_DOUBLEBUFFER) ? FALSE : TRUE;
+
+#ifdef _USE_GLD3_WGL
+ lpCtx->glVis = _mesa_create_visual(
+ bDouble, /* double buffer */
+ GL_FALSE, // stereo
+ lpPFD->cRedBits,
+ lpPFD->cGreenBits,
+ lpPFD->cBlueBits,
+ dwAlphaBits,
+ dwDepthBits,
+ dwStencilBits,
+ lpPFD->cAccumRedBits, // accum bits
+ lpPFD->cAccumGreenBits, // accum bits
+ lpPFD->cAccumBlueBits, // accum bits
+ lpPFD->cAccumAlphaBits, // accum alpha bits
+ 1 // num samples
+ );
+#else // _USE_GLD3_WGL
+ lpCtx->glVis = (*mesaFuncs.gl_create_visual)(
+ GL_TRUE, // RGB mode
+ bAlphaSW, // Is an alpha buffer required?
+ bDouble, // Is an double-buffering required?
+ GL_FALSE, // stereo
+ dwDepthBits, // depth_size
+ dwStencilBits, // stencil_size
+ lpPFD->cAccumBits, // accum_size
+ 0, // colour-index bits
+ lpPFD->cRedBits, // Red bit count
+ lpPFD->cGreenBits, // Green bit count
+ lpPFD->cBlueBits, // Blue bit count
+ dwAlphaBits // Alpha bit count
+ );
+#endif // _USE_GLD3_WGL
+
+ if (lpCtx->glVis == NULL) {
+ ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_visual failed\n");
+ goto return_with_error;
+ }
+
+#ifdef _USE_GLD3_WGL
+ lpCtx->glCtx = _mesa_create_context(API_OPENGL, lpCtx->glVis, NULL, (void *)lpCtx, GL_TRUE);
+#else
+ // Create the Mesa context
+ lpCtx->glCtx = (*mesaFuncs.gl_create_context)(
+ lpCtx->glVis, // Mesa visual
+ NULL, // share list context
+ (void *)lpCtx, // Pointer to our driver context
+ GL_TRUE // Direct context flag
+ );
+#endif // _USE_GLD3_WGL
+
+ if (lpCtx->glCtx == NULL) {
+ ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_context failed\n");
+ goto return_with_error;
+ }
+
+ // Create the Mesa framebuffer
+#ifdef _USE_GLD3_WGL
+ lpCtx->glBuffer = _mesa_create_framebuffer(
+ lpCtx->glVis,
+ lpCtx->glVis->depthBits > 0,
+ lpCtx->glVis->stencilBits > 0,
+ lpCtx->glVis->accumRedBits > 0,
+ GL_FALSE //swalpha
+ );
+#else
+ lpCtx->glBuffer = (*mesaFuncs.gl_create_framebuffer)(lpCtx->glVis);
+#endif // _USE_GLD3_WGL
+
+ if (lpCtx->glBuffer == NULL) {
+ ddlogMessage(DDLOG_CRITICAL_OR_WARN, "gl_create_framebuffer failed\n");
+ goto return_with_error;
+ }
+
+#ifdef _USE_GLD3_WGL
+ // Init Mesa internals
+ _swrast_CreateContext( lpCtx->glCtx );
+ _vbo_CreateContext( lpCtx->glCtx );
+ _tnl_CreateContext( lpCtx->glCtx );
+ _swsetup_CreateContext( lpCtx->glCtx );
+
+ _gldDriver.InitialiseMesa(lpCtx);
+
+ lpCtx->glCtx->imports.warning = _gld_mesa_warning;
+ lpCtx->glCtx->imports.fatal = _gld_mesa_fatal;
+
+#else
+ // Tell Mesa how many texture stages we have
+ glb.wMaxSimultaneousTextures = lpCtx->D3DDevDesc.wMaxSimultaneousTextures;
+ // Only use as many Units as the spec requires
+ if (glb.wMaxSimultaneousTextures > MAX_TEXTURE_UNITS)
+ glb.wMaxSimultaneousTextures = MAX_TEXTURE_UNITS;
+ lpCtx->glCtx->Const.MaxTextureUnits = glb.wMaxSimultaneousTextures;
+ ddlogPrintf(DDLOG_INFO, "Texture stages : %d", glb.wMaxSimultaneousTextures);
+
+ // Set the max texture size.
+ // NOTE: clamped to a max of 1024 for extra performance!
+ lpCtx->dwMaxTextureSize = (lpCtx->D3DDevDesc.dwMaxTextureWidth <= 1024) ? lpCtx->D3DDevDesc.dwMaxTextureWidth : 1024;
+
+// Texture resize takes place elsewhere. KH
+// NOTE: This was added to workaround an issue with the Intel app.
+#if 0
+ lpCtx->glCtx->Const.MaxTextureSize = lpCtx->dwMaxTextureSize;
+#else
+ lpCtx->glCtx->Const.MaxTextureSize = 1024;
+#endif
+ lpCtx->glCtx->Const.MaxDrawBuffers = 1;
+
+ // Setup the Display Driver pointers
+ dglSetupDDPointers(lpCtx->glCtx);
+
+ // Initialise all the Direct3D renderstates
+ dglInitStateD3D(lpCtx->glCtx);
+
+#if 0
+ // Signal a reload of texture state on next glBegin
+ lpCtx->m_texHandleValid = FALSE;
+ lpCtx->m_mtex = FALSE;
+ lpCtx->m_texturing = FALSE;
+#else
+ // Set default texture unit state
+// dglSetTexture(lpCtx, 0, NULL);
+// dglSetTexture(lpCtx, 1, NULL);
+#endif
+
+ //
+ // Set the global texture palette to default values.
+ //
+
+ // Clear the entire palette
+ ZeroMemory(ppe, sizeof(PALETTEENTRY) * 256);
+
+ // Fill the palette with a default colour.
+ // A garish colour is used to catch bugs. Here Magenta is used.
+ for (i=0; i < 256; i++) {
+ ppe[i].peRed = 255;
+ ppe[i].peGreen = 0;
+ ppe[i].peBlue = 255;
+ }
+
+ RELEASE(lpCtx->lpGlobalPalette);
+
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && glb.lpGlobalPalette)
+ hResult = IDirectDrawPalette_AddRef(lpCtx->lpGlobalPalette = glb.lpGlobalPalette);
+ else
+ hResult = IDirectDraw4_CreatePalette(
+ lpCtx->lpDD4,
+ DDPCAPS_INITIALIZE | DDPCAPS_8BIT | DDPCAPS_ALLOW256,
+ ppe,
+ &(lpCtx->lpGlobalPalette),
+ NULL);
+ if (FAILED(hResult)) {
+ ddlogError(DDLOG_ERROR, "Default CreatePalette failed\n", hResult);
+ lpCtx->lpGlobalPalette = NULL;
+ goto return_with_error;
+ }
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers && !glb.lpGlobalPalette)
+ IDirectDrawPalette_AddRef(glb.lpGlobalPalette = lpCtx->lpGlobalPalette);
+
+#endif // _USE_GLD3_WGL
+
+ // ** If we have made it to here then we can enable rendering **
+ lpCtx->bCanRender = TRUE;
+
+// ddlogMessage(DDLOG_SYSTEM, "dglCreateContextBuffers succeded\n");
+
+#ifdef GLD_THREADS
+ // Release serialized access
+ if (glb.bMultiThreaded)
+ LeaveCriticalSection(&CriticalSection);
+#endif
+
+ return TRUE;
+
+return_with_error:
+ // Clean up before returning.
+ // This is critical for secondary devices.
+
+ lpCtx->bCanRender = FALSE;
+
+#ifdef _USE_GLD3_WGL
+ // Destroy the Mesa context
+ if (lpCtx->glBuffer)
+ _mesa_destroy_framebuffer(lpCtx->glBuffer);
+ if (lpCtx->glCtx)
+ _mesa_destroy_context(lpCtx->glCtx);
+ if (lpCtx->glVis)
+ _mesa_destroy_visual(lpCtx->glVis);
+
+ // Destroy driver data
+ _gldDriver.DestroyDrawable(lpCtx);
+#else
+ // Destroy the Mesa context
+ if (lpCtx->glBuffer)
+ (*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);
+ if (lpCtx->glCtx)
+ (*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);
+ if (lpCtx->glVis)
+ (*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);
+
+ RELEASE(lpCtx->m_pvbuf); // Release D3D vertex buffer
+ RELEASE(lpCtx->m_vbuf); // Release D3D vertex buffer
+
+ if (lpCtx->lpViewport3) {
+ if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
+ RELEASE(lpCtx->lpViewport3);
+ lpCtx->lpViewport3 = NULL;
+ }
+
+ RELEASE(lpCtx->lpDev3);
+ if (lpCtx->lpDepth4) {
+ if (lpCtx->lpBack4)
+ IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);
+ else
+ IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);
+ RELEASE(lpCtx->lpDepth4);
+ lpCtx->lpDepth4 = NULL;
+ }
+ RELEASE(lpCtx->lpBack4);
+ RELEASE(lpCtx->lpFront4);
+ else
+ if (lpCtx->bFullscreen) {
+ IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);
+ IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);
+ }
+ RELEASE(lpCtx->lpD3D3);
+ RELEASE(lpCtx->lpDD4);
+ RELEASE(lpCtx->lpDD1);
+#endif // _USE_GLD3_WGL
+
+ lpCtx->bAllocated = FALSE;
+
+#ifdef GLD_THREADS
+ // Release serialized access
+ if (glb.bMultiThreaded)
+ LeaveCriticalSection(&CriticalSection);
+#endif
+
+ return FALSE;
+
+#undef DDLOG_CRITICAL_OR_WARN
+}
+
+// ***********************************************************************
+
+HGLRC dglCreateContext(
+ HDC a,
+ const DGL_pixelFormat *lpPF)
+{
+ int i;
+ HGLRC hGLRC;
+ DGL_ctx* lpCtx;
+ static BOOL bWarnOnce = TRUE;
+ DWORD dwThreadId = GetCurrentThreadId();
+ char szMsg[256];
+ HWND hWnd;
+ LONG lpfnWndProc;
+
+ // Validate license
+ if (!dglValidate())
+ return NULL;
+
+ // Is context state ready ?
+ if (!bContextReady)
+ return NULL;
+
+ ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext for HDC=%X, ThreadId=%X", a, dwThreadId);
+
+ // Find next free context.
+ // Also ensure that only one Fullscreen context is created at any one time.
+ hGLRC = 0; // Default to Not Found
+ for (i=0; i<DGL_MAX_CONTEXTS; i++) {
+ if (ctxlist[i].bAllocated) {
+ if (/*glb.bFullscreen && */ctxlist[i].bFullscreen)
+ break;
+ } else {
+ hGLRC = (HGLRC)(i+1);
+ break;
+ }
+ }
+
+ // Bail if no GLRC was found
+ if (!hGLRC)
+ return NULL;
+
+ // Set the context pointer
+ lpCtx = dglGetContextAddress(hGLRC);
+ // Make sure that context is zeroed before we do anything.
+ // MFC and C++ apps call wglCreateContext() and wglDeleteContext() multiple times,
+ // even though only one context is ever used by the app, so keep it clean. (DaveM)
+ ZeroMemory(lpCtx, sizeof(DGL_ctx));
+ lpCtx->bAllocated = TRUE;
+ // Flag that buffers need creating on next wglMakeCurrent call.
+ lpCtx->bHasBeenCurrent = FALSE;
+ lpCtx->lpPF = (DGL_pixelFormat *)lpPF; // cache pixel format
+ lpCtx->bCanRender = FALSE;
+
+ // Create all the internal resources here, not in dglMakeCurrent().
+ // We do a re-size check in dglMakeCurrent in case of re-allocations. (DaveM)
+ // We now try context allocations twice, first with video memory,
+ // then again with system memory. This is similar to technique
+ // used for dglWglResizeBuffers(). (DaveM)
+ if (lpCtx->bHasBeenCurrent == FALSE) {
+ if (!dglCreateContextBuffers(a, lpCtx, FALSE)) {
+ if (glb.bMessageBoxWarnings && bWarnOnce && dwLogging) {
+ bWarnOnce = FALSE;
+ switch (nContextError) {
+ case GLDERR_DDRAW: strcpy(szMsg, szDDrawWarning); break;
+ case GLDERR_D3D: strcpy(szMsg, szD3DWarning); break;
+ case GLDERR_MEM: strcpy(szMsg, szResourceWarning); break;
+ case GLDERR_BPP: strcpy(szMsg, szBPPWarning); break;
+ default: strcpy(szMsg, "");
+ }
+ if (strlen(szMsg))
+ MessageBox(NULL, szMsg, "GLDirect", MB_OK | MB_ICONWARNING);
+ }
+ // Only need to try again if memory error
+ if (nContextError == GLDERR_MEM) {
+ ddlogPrintf(DDLOG_WARN, "dglCreateContext failed 1st time with video memory");
+ }
+ else {
+ ddlogPrintf(DDLOG_ERROR, "dglCreateContext failed");
+ return NULL;
+ }
+ }
+ }
+
+ // Now that we have a hWnd, we can intercept the WindowProc.
+ hWnd = lpCtx->hWnd;
+ if (hWnd) {
+ // Only hook individual window handler once if not hooked before.
+ lpfnWndProc = GetWindowLong(hWnd, GWL_WNDPROC);
+ if (lpfnWndProc != (LONG)dglWndProc) {
+ lpCtx->lpfnWndProc = lpfnWndProc;
+ SetWindowLong(hWnd, GWL_WNDPROC, (LONG)dglWndProc);
+ }
+ // Find the parent window of the app too.
+ if (glb.hWndActive == NULL) {
+ while (hWnd != NULL) {
+ glb.hWndActive = hWnd;
+ hWnd = GetParent(hWnd);
+ }
+ // Hook the parent window too.
+ lpfnWndProc = GetWindowLong(glb.hWndActive, GWL_WNDPROC);
+ if (glb.hWndActive == lpCtx->hWnd)
+ glb.lpfnWndProc = lpCtx->lpfnWndProc;
+ else if (lpfnWndProc != (LONG)dglWndProc)
+ glb.lpfnWndProc = lpfnWndProc;
+ if (glb.lpfnWndProc)
+ SetWindowLong(glb.hWndActive, GWL_WNDPROC, (LONG)dglWndProc);
+ }
+ }
+
+ ddlogPrintf(DDLOG_SYSTEM, "dglCreateContext succeeded for HGLRC=%d", (int)hGLRC);
+
+ return hGLRC;
+}
+
+// ***********************************************************************
+// Make a DirectGL context current
+// Used by wgl functions and dgl functions
+BOOL dglMakeCurrent(
+ HDC a,
+ HGLRC b)
+{
+ int context;
+ DGL_ctx* lpCtx;
+ HWND hWnd;
+ BOOL bNeedResize = FALSE;
+ BOOL bWindowChanged, bContextChanged;
+ LPDIRECTDRAWCLIPPER lpddClipper;
+ DWORD dwThreadId = GetCurrentThreadId();
+ LONG lpfnWndProc;
+
+ // Validate license
+ if (!dglValidate())
+ return FALSE;
+
+ // Is context state ready ?
+ if (!bContextReady)
+ return FALSE;
+
+ context = (int)b; // This is as a result of STRICT!
+ ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: HDC=%X, HGLRC=%d, ThreadId=%X", a, context, dwThreadId);
+
+ // If the HGLRC is NULL then make no context current;
+ // Ditto if the HDC is NULL either. (DaveM)
+ if (context == 0 || a == 0) {
+ // Corresponding Mesa operation
+#ifdef _USE_GLD3_WGL
+ _mesa_make_current(NULL, NULL);
+#else
+ (*mesaFuncs.gl_make_current)(NULL, NULL);
+#endif
+ dglSetCurrentContext(0);
+ return TRUE;
+ }
+
+ // Make sure the HGLRC is in range
+ if ((context > DGL_MAX_CONTEXTS) || (context < 0)) {
+ ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: HGLRC out of range\n");
+ return FALSE;
+ }
+
+ // Find address of context and make sure that it has been allocated
+ lpCtx = dglGetContextAddress(b);
+ if (!lpCtx->bAllocated) {
+ ddlogMessage(DDLOG_ERROR, "dglMakeCurrent: Context not allocated\n");
+// return FALSE;
+ return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH
+ }
+
+#ifdef GLD_THREADS
+ // Serialize access to DirectDraw or DDS operations
+ if (glb.bMultiThreaded)
+ EnterCriticalSection(&CriticalSection);
+#endif
+
+ // Check if window has changed
+ hWnd = (a != lpCtx->hDC) ? WindowFromDC(a) : lpCtx->hWnd;
+ bWindowChanged = (hWnd != lpCtx->hWnd) ? TRUE : FALSE;
+ bContextChanged = (b != dglGetCurrentContext()) ? TRUE : FALSE;
+
+ // If the window has changed, make sure the clipper is updated. (DaveM)
+ if (glb.bDirectDrawPersistant && !lpCtx->bFullscreen && (bWindowChanged || bContextChanged)) {
+ lpCtx->hWnd = hWnd;
+#ifndef _USE_GLD3_WGL
+ IDirectDrawSurface4_GetClipper(lpCtx->lpFront4, &lpddClipper);
+ IDirectDrawClipper_SetHWnd(lpddClipper, 0, lpCtx->hWnd);
+ IDirectDrawClipper_Release(lpddClipper);
+#endif // _USE_GLD3_WGL
+ }
+
+ // Make sure hDC and hWnd is current. (DaveM)
+ // Obtain the dimensions of the rendering window
+ lpCtx->hDC = a; // Cache DC
+ lpCtx->hWnd = hWnd;
+ hWndLastActive = hWnd;
+
+ // Check for non-window DC = memory DC ?
+ if (hWnd == NULL) {
+ if (GetClipBox(a, &lpCtx->rcScreenRect) == ERROR) {
+ ddlogMessage(DDLOG_WARN, "GetClipBox failed in dglMakeCurrent\n");
+ SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
+ }
+ }
+ else if (!GetClientRect(lpCtx->hWnd, &lpCtx->rcScreenRect)) {
+ ddlogMessage(DDLOG_WARN, "GetClientRect failed in dglMakeCurrent\n");
+ SetRect(&lpCtx->rcScreenRect, 0, 0, 0, 0);
+ }
+ // Check if buffers need to be re-sized;
+ // If so, wait until Mesa GL stuff is setup before re-sizing;
+ if (lpCtx->dwWidth != lpCtx->rcScreenRect.right - lpCtx->rcScreenRect.left ||
+ lpCtx->dwHeight != lpCtx->rcScreenRect.bottom - lpCtx->rcScreenRect.top)
+ bNeedResize = TRUE;
+
+ // Now we can update our globals
+ dglSetCurrentContext(b);
+
+ // Corresponding Mesa operation
+#ifdef _USE_GLD3_WGL
+ _mesa_make_current(lpCtx->glCtx, lpCtx->glBuffer);
+ lpCtx->glCtx->Driver.UpdateState(lpCtx->glCtx, _NEW_ALL);
+ if (bNeedResize) {
+ // Resize buffers (Note Mesa GL needs to be setup beforehand);
+ // Resize Mesa internal buffer too via glViewport() command,
+ // which subsequently calls dglWglResizeBuffers() too.
+ lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
+ lpCtx->bHasBeenCurrent = TRUE;
+ }
+#else
+ (*mesaFuncs.gl_make_current)(lpCtx->glCtx, lpCtx->glBuffer);
+
+ dglSetupDDPointers(lpCtx->glCtx);
+
+ // Insure DirectDraw surfaces fit current window DC
+ if (bNeedResize) {
+ // Resize buffers (Note Mesa GL needs to be setup beforehand);
+ // Resize Mesa internal buffer too via glViewport() command,
+ // which subsequently calls dglWglResizeBuffers() too.
+ (*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
+ lpCtx->bHasBeenCurrent = TRUE;
+ }
+#endif // _USE_GLD3_WGL
+ ddlogPrintf(DDLOG_SYSTEM, "dglMakeCurrent: width = %d, height = %d", lpCtx->dwWidth, lpCtx->dwHeight);
+
+ // We have to clear D3D back buffer and render state if emulated front buffering
+ // for different window (but not context) like in Solid Edge.
+ if (glb.bDirectDrawPersistant && glb.bPersistantBuffers
+ && (bWindowChanged /* || bContextChanged */) && lpCtx->EmulateSingle) {
+#ifdef _USE_GLD3_WGL
+// IDirect3DDevice8_EndScene(lpCtx->pDev);
+// lpCtx->bSceneStarted = FALSE;
+ lpCtx->glCtx->Driver.Clear(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,
+ GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
+#else
+ IDirect3DDevice3_EndScene(lpCtx->lpDev3);
+ lpCtx->bSceneStarted = FALSE;
+ dglClearD3D(lpCtx->glCtx, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT,
+ GL_TRUE, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
+#endif // _USE_GLD3_WGL
+ }
+
+ // The first time we call MakeCurrent we set the initial viewport size
+ if (lpCtx->bHasBeenCurrent == FALSE)
+#ifdef _USE_GLD3_WGL
+ lpCtx->glCtx->Driver.Viewport(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
+#else
+ (*mesaFuncs.gl_Viewport)(lpCtx->glCtx, 0, 0, lpCtx->dwWidth, lpCtx->dwHeight);
+#endif // _USE_GLD3_WGL
+ lpCtx->bHasBeenCurrent = TRUE;
+
+#ifdef GLD_THREADS
+ // Release serialized access
+ if (glb.bMultiThreaded)
+ LeaveCriticalSection(&CriticalSection);
+#endif
+
+ return TRUE;
+}
+
+// ***********************************************************************
+
+BOOL dglDeleteContext(
+ HGLRC a)
+{
+ DGL_ctx* lpCtx;
+ DWORD dwThreadId = GetCurrentThreadId();
+ char argstr[256];
+
+#if 0 // We have enough trouble throwing exceptions as it is... (DaveM)
+ // Validate license
+ if (!dglValidate())
+ return FALSE;
+#endif
+
+ // Is context state ready ?
+ if (!bContextReady)
+ return FALSE;
+
+ ddlogPrintf(DDLOG_SYSTEM, "dglDeleteContext: Deleting context HGLRC=%d, ThreadId=%X", (int)a, dwThreadId);
+
+ // Make sure the HGLRC is in range
+ if (((int) a> DGL_MAX_CONTEXTS) || ((int)a < 0)) {
+ ddlogMessage(DDLOG_ERROR, "dglDeleteCurrent: HGLRC out of range\n");
+ return FALSE;
+ }
+
+ // Make sure context is valid
+ lpCtx = dglGetContextAddress(a);
+ if (!lpCtx->bAllocated) {
+ ddlogPrintf(DDLOG_WARN, "Tried to delete unallocated context HGLRC=%d", (int)a);
+// return FALSE;
+ return TRUE; // HACK: Shuts up "WebLab Viewer Pro". KeithH
+ }
+
+ // Make sure context is de-activated
+ if (a == dglGetCurrentContext()) {
+ ddlogPrintf(DDLOG_WARN, "dglDeleteContext: context HGLRC=%d still active", (int)a);
+ dglMakeCurrent(NULL, NULL);
+ }
+
+#ifdef GLD_THREADS
+ // Serialize access to DirectDraw or DDS operations
+ if (glb.bMultiThreaded)
+ EnterCriticalSection(&CriticalSection);
+#endif
+
+ // We are about to destroy all Direct3D objects.
+ // Therefore we must disable rendering
+ lpCtx->bCanRender = FALSE;
+
+ // This exception handler was installed to catch some
+ // particularly nasty apps. Console apps that call exit()
+ // fall into this catagory (i.e. Win32 Glut).
+
+ // VC cannot successfully implement multiple exception handlers
+ // if more than one exception occurs. Therefore reverting back to
+ // single exception handler as Keith originally had it. (DaveM)
+
+#define WARN_MESSAGE(p) strcpy(argstr, (#p));
+#define SAFE_RELEASE(p) WARN_MESSAGE(p); RELEASE(p);
+
+__try {
+#ifdef _USE_GLD3_WGL
+ WARN_MESSAGE(gl_destroy_framebuffer);
+ if (lpCtx->glBuffer)
+ _mesa_destroy_framebuffer(lpCtx->glBuffer);
+ WARN_MESSAGE(gl_destroy_context);
+ if (lpCtx->glCtx)
+ _mesa_destroy_context(lpCtx->glCtx);
+ WARN_MESSAGE(gl_destroy_visual);
+ if (lpCtx->glVis)
+ _mesa_destroy_visual(lpCtx->glVis);
+
+ _gldDriver.DestroyDrawable(lpCtx);
+#else
+ // Destroy the Mesa context
+ WARN_MESSAGE(gl_destroy_framebuffer);
+ if (lpCtx->glBuffer)
+ (*mesaFuncs.gl_destroy_framebuffer)(lpCtx->glBuffer);
+ WARN_MESSAGE(gl_destroy_context);
+ if (lpCtx->glCtx)
+ (*mesaFuncs.gl_destroy_context)(lpCtx->glCtx);
+ WARN_MESSAGE(gl_destroy_visual);
+ if (lpCtx->glVis)
+ (*mesaFuncs.gl_destroy_visual)(lpCtx->glVis);
+
+ SAFE_RELEASE(lpCtx->m_pvbuf); // release D3D vertex buffer
+ SAFE_RELEASE(lpCtx->m_vbuf); // release D3D vertex buffer
+
+ // Delete the global palette
+ SAFE_RELEASE(lpCtx->lpGlobalPalette);
+
+ // Clean up.
+ if (lpCtx->lpViewport3) {
+ if (lpCtx->lpDev3) IDirect3DDevice3_DeleteViewport(lpCtx->lpDev3, lpCtx->lpViewport3);
+ SAFE_RELEASE(lpCtx->lpViewport3);
+ lpCtx->lpViewport3 = NULL;
+ }
+
+ SAFE_RELEASE(lpCtx->lpDev3);
+ if (lpCtx->lpDepth4) {
+ if (lpCtx->lpBack4)
+ IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpBack4, 0L, lpCtx->lpDepth4);
+ else
+ IDirectDrawSurface4_DeleteAttachedSurface(lpCtx->lpFront4, 0L, lpCtx->lpDepth4);
+ SAFE_RELEASE(lpCtx->lpDepth4);
+ lpCtx->lpDepth4 = NULL;
+ }
+ SAFE_RELEASE(lpCtx->lpBack4);
+ SAFE_RELEASE(lpCtx->lpFront4);
+ if (lpCtx->bFullscreen) {
+ IDirectDraw4_RestoreDisplayMode(lpCtx->lpDD4);
+ IDirectDraw4_SetCooperativeLevel(lpCtx->lpDD4, NULL, DDSCL_NORMAL);
+ }
+ SAFE_RELEASE(lpCtx->lpD3D3);
+ SAFE_RELEASE(lpCtx->lpDD4);
+ SAFE_RELEASE(lpCtx->lpDD1);
+#endif // _ULSE_GLD3_WGL
+
+}
+__except(EXCEPTION_EXECUTE_HANDLER) {
+ ddlogPrintf(DDLOG_WARN, "Exception raised in dglDeleteContext: %s", argstr);
+}
+
+ // Restore the window message handler because this context may be used
+ // again by another window with a *different* message handler. (DaveM)
+ if (lpCtx->lpfnWndProc) {
+ SetWindowLong(lpCtx->hWnd, GWL_WNDPROC, (LONG)lpCtx->lpfnWndProc);
+ lpCtx->lpfnWndProc = (LONG)NULL;
+ }
+
+ lpCtx->bAllocated = FALSE; // This context is now free for use
+
+#ifdef GLD_THREADS
+ // Release serialized access
+ if (glb.bMultiThreaded)
+ LeaveCriticalSection(&CriticalSection);
+#endif
+
+ return TRUE;
+}
+
+// ***********************************************************************
+
+BOOL dglSwapBuffers(
+ HDC hDC)
+{
+ RECT rSrcRect; // Source rectangle
+ RECT rDstRect; // Destination rectangle
+ POINT pt;
+ HRESULT hResult;
+
+ DDBLTFX bltFX;
+ DWORD dwBlitFlags;
+ DDBLTFX *lpBltFX;
+
+// DWORD dwThreadId = GetCurrentThreadId();
+ HGLRC hGLRC = dglGetCurrentContext();
+ DGL_ctx *lpCtx = dglGetContextAddress(hGLRC);
+ HWND hWnd;
+
+ HDC hDCAux; // for memory DC
+ int x,y,w,h; // for memory DC BitBlt
+
+#if 0 // Perhaps not a good idea. Called too often. KH
+ // Validate license
+ if (!dglValidate())
+ return FALSE;
+#endif
+
+ if (!lpCtx) {
+ return TRUE; //FALSE; // No current context
+ }
+
+ if (!lpCtx->bCanRender) {
+ // Don't return false else some apps will bail.
+ return TRUE;
+ }
+
+ hWnd = lpCtx->hWnd;
+ if (hDC != lpCtx->hDC) {
+ ddlogPrintf(DDLOG_WARN, "dglSwapBuffers: HDC=%X does not match HDC=%X for HGLRC=%d", hDC, lpCtx->hDC, hGLRC);
+ hWnd = WindowFromDC(hDC);
+ }
+
+#ifndef _USE_GLD3_WGL
+ // Ensure that the surfaces exist before we tell
+ // the device to render to them.
+ IDirectDraw4_RestoreAllSurfaces(lpCtx->lpDD4);
+
+ // Make sure that the vertex caches have been emptied
+// dglStateChange(lpCtx);
+
+ // Some OpenGL programs don't issue a glFinish - check for it here.
+ if (lpCtx->bSceneStarted) {
+ IDirect3DDevice3_EndScene(lpCtx->lpDev3);
+ lpCtx->bSceneStarted = FALSE;
+ }
+#endif
+
+#if 0
+ // If the calling app is not active then we don't need to Blit/Flip.
+ // We can therefore simply return TRUE.
+ if (!glb.bAppActive)
+ return TRUE;
+ // Addendum: This is WRONG! We should bail if the app is *minimized*,
+ // not merely if the app is just plain 'not active'.
+ // KeithH, 27/May/2000.
+#endif
+
+ // Check for non-window DC = memory DC ?
+ if (hWnd == NULL) {
+ if (GetClipBox(hDC, &rSrcRect) == ERROR)
+ return TRUE;
+ // Use GDI BitBlt instead from compatible DirectDraw DC
+ x = rSrcRect.left;
+ y = rSrcRect.top;
+ w = rSrcRect.right - rSrcRect.left;
+ h = rSrcRect.bottom - rSrcRect.top;
+
+ // Ack. DX8 does not have a GetDC() function...
+ // TODO: Defer to DX7 or DX9 drivers... (DaveM)
+ return TRUE;
+ }
+
+ // Bail if window client region is not drawable, like in Solid Edge
+ if (!IsWindow(hWnd) /* || !IsWindowVisible(hWnd) */ || !GetClientRect(hWnd, &rSrcRect))
+ return TRUE;
+
+#ifdef GLD_THREADS
+ // Serialize access to DirectDraw or DDS operations
+ if (glb.bMultiThreaded)
+ EnterCriticalSection(&CriticalSection);
+#endif
+
+#ifdef _USE_GLD3_WGL
+ // Notify Mesa of impending swap, so Mesa can flush internal buffers.
+ _mesa_notifySwapBuffers(lpCtx->glCtx);
+ // Now perform driver buffer swap
+ _gldDriver.SwapBuffers(lpCtx, hDC, hWnd);
+#else
+ if (lpCtx->bFullscreen) {
+ // Sync with retrace if required
+ if (glb.bWaitForRetrace) {
+ IDirectDraw4_WaitForVerticalBlank(
+ lpCtx->lpDD4,
+ DDWAITVB_BLOCKBEGIN,
+ 0);
+ }
+
+ // Perform the fullscreen flip
+ TRY(IDirectDrawSurface4_Flip(
+ lpCtx->lpFront4,
+ NULL,
+ DDFLIP_WAIT),
+ "dglSwapBuffers: Flip");
+ } else {
+ // Calculate current window position and size
+ pt.x = pt.y = 0;
+ ClientToScreen(hWnd, &pt);
+ GetClientRect(hWnd, &rDstRect);
+ if (rDstRect.right > lpCtx->dwModeWidth)
+ rDstRect.right = lpCtx->dwModeWidth;
+ if (rDstRect.bottom > lpCtx->dwModeHeight)
+ rDstRect.bottom = lpCtx->dwModeHeight;
+ OffsetRect(&rDstRect, pt.x, pt.y);
+ rSrcRect.left = rSrcRect.top = 0;
+ rSrcRect.right = lpCtx->dwWidth;
+ rSrcRect.bottom = lpCtx->dwHeight;
+ if (rSrcRect.right > lpCtx->dwModeWidth)
+ rSrcRect.right = lpCtx->dwModeWidth;
+ if (rSrcRect.bottom > lpCtx->dwModeHeight)
+ rSrcRect.bottom = lpCtx->dwModeHeight;
+
+ if (glb.bWaitForRetrace) {
+ // Sync the blit to the vertical retrace
+ ZeroMemory(&bltFX, sizeof(bltFX));
+ bltFX.dwSize = sizeof(bltFX);
+ bltFX.dwDDFX = DDBLTFX_NOTEARING;
+ dwBlitFlags = DDBLT_WAIT | DDBLT_DDFX;
+ lpBltFX = &bltFX;
+ } else {
+ dwBlitFlags = DDBLT_WAIT;
+ lpBltFX = NULL;
+ }
+
+ // Perform the actual blit
+ TRY(IDirectDrawSurface4_Blt(
+ lpCtx->lpFront4,
+ &rDstRect,
+ lpCtx->lpBack4, // Blit source
+ &rSrcRect,
+ dwBlitFlags,
+ lpBltFX),
+ "dglSwapBuffers: Blt");
+ }
+#endif // _USE_GLD3_WGL
+
+#ifdef GLD_THREADS
+ // Release serialized access
+ if (glb.bMultiThreaded)
+ LeaveCriticalSection(&CriticalSection);
+#endif
+
+ // TODO: Re-instate rendering bitmap snapshot feature??? (DaveM)
+
+ // Render frame is completed
+ ValidateRect(hWnd, NULL);
+ lpCtx->bFrameStarted = FALSE;
+
+ return TRUE;
+}
+
+// ***********************************************************************
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 13:44:56 +0000