Author: tack
Date: Fri Apr 27 04:16:10 2007
New Revision: 2659
Modified:
trunk/xine/src/drivers/video_out_kaa.c
Log:
last_vsync_count was actually getting set to current retrace counter when
glXWaitVideoSyncSGI was called.
Modified: trunk/xine/src/drivers/video_out_kaa.c
==============================================================================
--- trunk/xine/src/drivers/video_out_kaa.c (original)
+++ trunk/xine/src/drivers/video_out_kaa.c Fri Apr 27 04:16:10 2007
@@ -922,9 +922,9 @@
/* GLX vsync is enabled. First we need to determine the display's
* refresh rate, which is represented by vsync_duration in 1/90000
* second units (same units as xine frame duration). Once that is
- * determine, we decide whether or not to wait for vertical refresh
- * iff the frame duration is an integer multiple of of the refresh
- * rate and the last frame was displayed at most 1 vsyncs ago.
+ * determined, we decide whether or not to wait for vertical
refresh
+ * iff the frame duration is an integer multiple of the refresh
+ * rate and the last frame was displayed exactly 1 vsyncs ago.
*/
XLockDisplay(this->glx_display);
if (glXMakeCurrent(this->glx_display, this->glx_drawable,
this->glx_context)) {
@@ -943,13 +943,14 @@
} else if (glXGetVideoSyncSGI(&count) == 0) {
// We know display refresh rate and current retrace
counter.
float multiple = frame_gen->duration /
(float)this->vsync_duration;
- if (fabs(roundf(multiple) - multiple) < 0.02 && count -
this->last_vsync_count <= 1) {
+ unsigned int dummy;
+ if (fabs(roundf(multiple) - multiple) < 0.02 && count -
this->last_vsync_count == 1) {
/* Frame duration looks pretty damn close to a multiple
* of the display refresh rate, and our last frame was
- * at most 1 refresh ago, so let's wait for next
+ * exactly 1 refresh ago, so let's wait for next
* refresh.
*/
- ret = glXWaitVideoSyncSGI(2, (count+1)%2, &count);
+ ret = glXWaitVideoSyncSGI(2, (count+1)%2, &dummy);
}
this->last_vsync_count = count;
}
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