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i915tex: Only wait for vblank when really necessary.

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This avoids superfluous waits for vblank timing out under some circumstances.
This commit is contained in:
Michel Dänzer 2007-07-10 10:54:51 +02:00
parent a903749b24
commit f1e1b2ed16
2 changed files with 27 additions and 10 deletions
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10
src/mesa/drivers/dri/i915tex/intel_buffers.c
View file

@ -316,7 +316,8 @@ intelWindowMoved(struct intel_context *intel)
flags = intel_fb->vblank_flags & ~VBLANK_FLAG_SECONDARY;
}
if (flags != intel_fb->vblank_flags) {
if (flags != intel_fb->vblank_flags && intel_fb->vblank_flags &&
!(intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ)) {
drmVBlank vbl;
int i;
@ -327,7 +328,9 @@ intelWindowMoved(struct intel_context *intel)
}
for (i = 0; i < intel_fb->pf_num_pages; i++) {
if (!intel_fb->color_rb[i])
if (!intel_fb->color_rb[i] ||
(intel_fb->vbl_waited - intel_fb->color_rb[i]->vbl_pending) <=
(1<<23))
continue;
vbl.request.sequence = intel_fb->color_rb[i]->vbl_pending;
@ -828,7 +831,8 @@ intelScheduleSwap(const __DRIdrawablePrivate * dPriv, GLboolean *missed_target)
drm_i915_vblank_swap_t swap;
GLboolean ret;
if ((intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ) ||
if (!intel_fb->vblank_flags ||
(intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ) ||
intelScreen->current_rotation != 0 ||
intelScreen->drmMinor < (intel_fb->pf_active ? 9 : 6))
return GL_FALSE;

27
src/mesa/drivers/dri/i915tex/intel_context.c
View file

@ -619,12 +619,23 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
if (intel->ctx.DrawBuffer == &intel_fb->Base) {
if (intel->driDrawable != driDrawPriv) {
intel_fb->vblank_flags = (intel->intelScreen->irq_active != 0)
? driGetDefaultVBlankFlags(&intel->optionCache)
: VBLANK_FLAG_NO_IRQ;
(*dri_interface->getUST) (&intel_fb->swap_ust);
driDrawableInitVBlank(driDrawPriv, intel_fb->vblank_flags,
&intel_fb->vbl_seq);
if (driDrawPriv->pdraw->swap_interval == (unsigned)-1) {
int i;
intel_fb->vblank_flags = (intel->intelScreen->irq_active != 0)
? driGetDefaultVBlankFlags(&intel->optionCache)
: VBLANK_FLAG_NO_IRQ;
(*dri_interface->getUST) (&intel_fb->swap_ust);
driDrawableInitVBlank(driDrawPriv, intel_fb->vblank_flags,
&intel_fb->vbl_seq);
intel_fb->vbl_waited = intel_fb->vbl_seq;
for (i = 0; i < (intel->intelScreen->third.handle ? 3 : 2); i++) {
if (intel_fb->color_rb[i])
intel_fb->color_rb[i]->vbl_pending = intel_fb->vbl_seq;
}
}
intel->driDrawable = driDrawPriv;
intelWindowMoved(intel);
}
@ -741,7 +752,9 @@ void LOCK_HARDWARE( struct intel_context *intel )
BUFFER_BACK_LEFT);
}
if (intel_rb && (intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) {
if (intel_rb && intel_fb->vblank_flags &&
!(intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ) &&
(intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) {
drmVBlank vbl;
vbl.request.type = DRM_VBLANK_ABSOLUTE;