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DRI2: add interpolated blanks to frame number in event handlers

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The 'frame' argument passed to event handlers is the plain
CRTC vblank counter that stops progressing when the
associated display is in DPMS-off mode. If we have a
DPMS-off period the frame counter and MSC will
diverge, which can cause some higher-level functions
to return incorrect values.

This patch fixes the problem by adding interpolated
vblanks to the frame counter before using it in handler
functions.

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ilija Hadzic
2013-05-08 22:39:48 -04:00
committed by Michel Dänzer
parent 385a92b4fb
commit bd2557ea5e
1 changed files with 8 additions and 0 deletions
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8
src/radeon_dri2.c
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@@ -799,6 +799,9 @@ void radeon_dri2_frame_event_handler(unsigned int frame, unsigned int tv_sec,
M_ANY, DixWriteAccess);
if (status != Success)
goto cleanup;
if (!event->crtc)
goto cleanup;
frame += radeon_get_interpolated_vblanks(event->crtc);
screen = drawable->pScreen;
scrn = xf86ScreenToScrn(screen);
@@ -1254,6 +1257,11 @@ void radeon_dri2_flip_event_handler(unsigned int frame, unsigned int tv_sec,
free(flip);
return;
}
if (!flip->crtc) {
free(flip);
return;
}
frame += radeon_get_interpolated_vblanks(flip->crtc);
screen = drawable->pScreen;
scrn = xf86ScreenToScrn(screen);