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Dave Reveman's patch for GLX_MESA_copy_sub_buffer support

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This commit is contained in:
Brian Paul
2006-03-31 15:48:04 +00:00
parent df3d4e0bb9
commit f2ad1b60c0
23 changed files with 373 additions and 83 deletions
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53
src/mesa/drivers/dri/i915/intel_batchbuffer.c
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@@ -366,7 +366,8 @@ static void intelWaitForFrameCompletion( intelContextPtr intel )
/*
* Copy the back buffer to the front buffer.
*/
void intelCopyBuffer( const __DRIdrawablePrivate *dPriv )
void intelCopyBuffer( const __DRIdrawablePrivate *dPriv,
const drm_clip_rect_t *rect)
{
intelContextPtr intel;
GLboolean missed_target;
@@ -385,15 +386,19 @@ void intelCopyBuffer( const __DRIdrawablePrivate *dPriv )
LOCK_HARDWARE( intel );
intelWaitForFrameCompletion( intel );
UNLOCK_HARDWARE( intel );
driWaitForVBlank( dPriv, &intel->vbl_seq, intel->vblank_flags, & missed_target );
LOCK_HARDWARE( intel );
if (!rect)
{
UNLOCK_HARDWARE( intel );
driWaitForVBlank( dPriv, &intel->vbl_seq, intel->vblank_flags, & missed_target );
LOCK_HARDWARE( intel );
}
{
const intelScreenPrivate *intelScreen = intel->intelScreen;
const __DRIdrawablePrivate *dPriv = intel->driDrawable;
const int nbox = dPriv->numClipRects;
const drm_clip_rect_t *pbox = dPriv->pClipRects;
drm_clip_rect_t box;
const int cpp = intelScreen->cpp;
const int pitch = intelScreen->front.pitch; /* in bytes */
int i;
@@ -429,18 +434,35 @@ void intelCopyBuffer( const __DRIdrawablePrivate *dPriv )
continue;
}
box = *pbox;
if (rect)
{
if (rect->x1 > box.x1)
box.x1 = rect->x1;
if (rect->y1 > box.y1)
box.y1 = rect->y1;
if (rect->x2 < box.x2)
box.x2 = rect->x2;
if (rect->y2 < box.y2)
box.y2 = rect->y2;
if (box.x1 > box.x2 || box.y1 > box.y2)
continue;
}
BEGIN_BATCH( 8);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (pbox->y1 << 16) | pbox->x1 );
OUT_BATCH( (pbox->y2 << 16) | pbox->x2 );
OUT_BATCH( (box.y1 << 16) | box.x1 );
OUT_BATCH( (box.y2 << 16) | box.x2 );
if (intel->sarea->pf_current_page == 0)
OUT_BATCH( intelScreen->front.offset );
else
OUT_BATCH( intelScreen->back.offset );
OUT_BATCH( (pbox->y1 << 16) | pbox->x1 );
OUT_BATCH( (box.y1 << 16) | box.x1 );
OUT_BATCH( BR13 & 0xffff );
if (intel->sarea->pf_current_page == 0)
@@ -454,14 +476,17 @@ void intelCopyBuffer( const __DRIdrawablePrivate *dPriv )
intelFlushBatchLocked( intel, GL_TRUE, GL_TRUE, GL_TRUE );
UNLOCK_HARDWARE( intel );
intel->swap_count++;
(*dri_interface->getUST)(&ust);
if (missed_target) {
intel->swap_missed_count++;
intel->swap_missed_ust = ust - intel->swap_ust;
}
if (!rect)
{
intel->swap_count++;
(*dri_interface->getUST)(&ust);
if (missed_target) {
intel->swap_missed_count++;
intel->swap_missed_ust = ust - intel->swap_ust;
}
intel->swap_ust = ust;
intel->swap_ust = ust;
}
}