On 03/08/2013 10:14 AM, Anuj Phogat wrote:
Framebuffer blitting operation should be skipped if any of the
dimensions (width/height) of src/dst rect is zero.
V2: Move the dimension check after error checking in _mesa_BlitFramebuffer.
Fixes: fbblit(negative.nullblit.zeroSize) in Intel oglconform
https://bugs.freedesktop.org/show_bug.cgi?id=59495
Reference the bug below as...
Note: Candidate for all the stable branches.
Signed-off-by: Anuj Phogat <anuj.pho...@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59495
Reviewed-by: Ian Romanick <ian.d.roman...@intel.com>
---
src/mesa/main/fbobject.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index d6acc58..0126e29 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -3190,7 +3190,9 @@ _mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint
srcX1, GLint srcY1,
}
}
- if (!mask) {
+ if (!mask ||
+ (srcX1 - srcX0) == 0 || (srcY1 - srcY0) == 0 ||
+ (dstX1 - dstX0) == 0 || (dstY1 - dstY0) == 0) {
return;
}
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