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authorMichel Dänzer <michel@tungstengraphics.com>2007-07-10 10:54:51 +0200
committerMichel Dänzer <michel@tungstengraphics.com>2007-07-10 11:14:25 +0200
commitf1e1b2ed167b63409a88ba489418e407fce68f21 (patch)
treefa2250be347688c7224b430783358369cea1ccc7 /src
parenta903749b246fce26038c66d06fe7eb77daf815ab (diff)
i915tex: Only wait for vblank when really necessary.
This avoids superfluous waits for vblank timing out under some circumstances.
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i915tex/intel_buffers.c10
-rw-r--r--src/mesa/drivers/dri/i915tex/intel_context.c27
2 files changed, 27 insertions, 10 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_buffers.c b/src/mesa/drivers/dri/i915tex/intel_buffers.c
index 62ff54b007..15d02f8e2c 100644
--- a/src/mesa/drivers/dri/i915tex/intel_buffers.c
+++ b/src/mesa/drivers/dri/i915tex/intel_buffers.c
@@ -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;
diff --git a/src/mesa/drivers/dri/i915tex/intel_context.c b/src/mesa/drivers/dri/i915tex/intel_context.c
index c927dca8e5..5334efd63d 100644
--- a/src/mesa/drivers/dri/i915tex/intel_context.c
+++ b/src/mesa/drivers/dri/i915tex/intel_context.c
@@ -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;