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authorSergii Romantsov <[email protected]>2019-02-28 13:35:54 +0200
committerLionel Landwerlin <[email protected]>2019-03-30 11:50:40 +0000
commit72a921e12ac1828998d2a32966e1dd0123eabfdf (patch)
treef97bd96be8515e5118219a21ee3cdb3161f7e7d3 /src/mesa/drivers/dri/i965/brw_meta_util.c
parente757a2481f7076e98e776e18c1ecda7062ee8504 (diff)
i965,iris/blorp: do not blit 0-sizes
Seems there is no sense in blitting 0-sized sources or destinations. Additionaly it may cause segfaults for i965. v2: Function call replaced with inline check v3: Added check to avoid devision by zero (L. Landwerlin) v4: Added simillar check for Iris (L. Landwerlin) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110239 Signed-off-by: Sergii Romantsov <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Lionel Landwerlin <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_meta_util.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_meta_util.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_meta_util.c b/src/mesa/drivers/dri/i965/brw_meta_util.c
index 908b0989769..6a6d68425fa 100644
--- a/src/mesa/drivers/dri/i965/brw_meta_util.c
+++ b/src/mesa/drivers/dri/i965/brw_meta_util.c
@@ -220,6 +220,10 @@ brw_meta_mirror_clip_and_scissor(const struct gl_context *ctx,
* 4 * 2 = 8 > 5 in the src.
*/
+ if (*srcX0 == *srcX1 || *srcY0 == *srcY1
+ || *dstX0 == *dstX1 || *dstY0 == *dstY1)
+ return true;
+
float scaleX = (float) (*srcX1 - *srcX0) / (*dstX1 - *dstX0);
float scaleY = (float) (*srcY1 - *srcY0) / (*dstY1 - *dstY0);
@@ -263,7 +267,11 @@ brw_meta_mirror_clip_and_scissor(const struct gl_context *ctx,
*mirror_y = !*mirror_y;
}
- return false;
+ /* Check for invalid bounds
+ * Can't blit for 0-dimensions
+ */
+ return *srcX0 == *srcX1 || *srcY0 == *srcY1
+ || *dstX0 == *dstX1 || *dstY0 == *dstY1;
}
/**