OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

loader/dri3: Use dri3_find_back in loader_dri3_swap_buffers_msc

Browse Source 
If the application hasn't done any drawing since the last call, we
would reuse the same back buffer which was used for the previous swap,
which may not have completed yet. This could result in various issues
such as tearing or application hangs.

In the normal case, the behaviour is unchanged.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97957
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101683
Cc: mesa-stable@lists.freedesktop.org

[Michel Dänzer: Make Thomas' fix from bugzilla actually work as
 intended, write commit log]
This commit is contained in:
Thomas Hellstrom
2017-07-04 12:55:15 +09:00
committed by Michel Dänzer
parent c3b5c2ca19
commit 81fb154777
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/loader/loader_dri3_helper.c
View File

@@ -640,7 +640,7 @@ loader_dri3_swap_buffers_msc(struct loader_dri3_drawable *draw,
draw->vtable->flush_drawable(draw, flush_flags);
back = draw->buffers[LOADER_DRI3_BACK_ID(draw->cur_back)];
back = draw->buffers[dri3_find_back(draw)];
if (draw->is_different_gpu && back) {
/* Update the linear buffer before presenting the pixmap */
draw->ext->image->blitImage(dri_context,