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sna/dri: For offscreen, swaps just exchange the buffers 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-06-11 09:00:16 +01:00
parent e9397b28ef
commit 00e8b4bec6
1 changed files with 8 additions and 2 deletions
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10
src/sna/sna_dri.c
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@ -980,11 +980,11 @@ sna_dri_schedule_swap(ClientPtr client, DrawablePtr draw, DRI2BufferPtr front,
enum DRI2FrameEventType swap_type = DRI2_SWAP;
CARD64 current_msc;
DBG(("%s()\n", __FUNCTION__));
DBG(("%s(target_msc=%llu)\n", __FUNCTION__, (long long)*target_msc));
/* Drawable not displayed... just complete the swap */
if (pipe == -1)
goto blit_fallback;
goto xchg_fallback;
/* Truncate to match kernel interfaces; means occasional overflow
* misses, but that's generally not a big deal */
@ -1139,6 +1139,12 @@ blit_fallback:
sna_dri_frame_event_info(swap_info);
*target_msc = 0; /* offscreen, so zero out target vblank count */
return TRUE;
xchg_fallback:
sna_dri_exchange_buffers(draw, front, back);
DRI2SwapComplete(client, draw, 0, 0, 0, DRI2_EXCHANGE_COMPLETE, func, data);
*target_msc = 0; /* offscreen, so zero out target vblank count */
return TRUE;
}
#if DRI2INFOREC_VERSION >= 6