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authorBrian Paul <[email protected]>2013-02-18 10:11:54 -0700
committerBrian Paul <[email protected]>2013-02-19 07:19:19 -0700
commitdfbcb1849c2fd7b88425645839cb530ca6f3f8cc (patch)
tree820431ad3f2ccdd2a2cf03b35d470a4906f585c0 /src/gallium
parente2091f64cb9ea79f3b51c353ed9facc03ec5690a (diff)
llvmpipe: fix handling of 0 x 0 framebuffer size
Bump up the size to 1 x 1. This fixes a number of potential failure points in the code. See also http://bugs.freedesktop.org/show_bug.cgi?id=61012
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_texture.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_texture.c b/src/gallium/drivers/llvmpipe/lp_texture.c
index 2e9c6bfe1ca..ce756c52897 100644
--- a/src/gallium/drivers/llvmpipe/lp_texture.c
+++ b/src/gallium/drivers/llvmpipe/lp_texture.c
@@ -240,8 +240,8 @@ llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen,
/* Round up the surface size to a multiple of the tile size to
* avoid tile clipping.
*/
- const unsigned width = align(lpr->base.width0, TILE_SIZE);
- const unsigned height = align(lpr->base.height0, TILE_SIZE);
+ const unsigned width = MAX2(1, align(lpr->base.width0, TILE_SIZE));
+ const unsigned height = MAX2(1, align(lpr->base.height0, TILE_SIZE));
const unsigned width_t = width / TILE_SIZE;
const unsigned height_t = height / TILE_SIZE;