diff options
| author | Ian Romanick <[email protected]> | 2012-02-02 16:32:45 -0700 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2012-02-07 10:00:32 -0800 |
| commit | d59466279e45a1e9c3f9081f72fedbdf961afbe1 (patch) | |
| tree | e2a48c3804f28841d3eab75ab5f763bc33ba8669 /src/mesa/main/texcompress_s3tc.c | |
| parent | 65b096aeddd9b45ca038f44cc9adfff86c8c48b2 (diff) | |
intel: Avoid divide by zero for very small linear blits
If size is small (such as 1),
pitch = ROUND_DOWN_TO(MIN2(size, (1 << 15) - 1), 4);
makes pitch = 0. Then
height = size / pitch;
causes a division-by-zero exception. If pitch is zero, set height to
1 and avoid the division.
This fixes piglit's bin/getteximage-formats test and glean's
bufferObject test.
NOTE: This is a candidate for the 8.0 release branch.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44971
Diffstat (limited to 'src/mesa/main/texcompress_s3tc.c')
0 files changed, 0 insertions, 0 deletions