Fix potential division by zero.

Bug 25351344 Change-Id: Iaf0ce657a3a98c9b70902240340ed5f3f8076281 Reviewed-on: https://swiftshader-review.googlesource.com/4769Tested-by: Nicolas Capens <capn@google.com> Reviewed-by: Alexis Hétu <sugoi@google.com> Reviewed-by: Nicolas Capens <capn@google.com>

Fix potential division by zero.
0a8d3d11 · Nicolas Capens · 043c19f0 · 0a8d3d11
Commit 0a8d3d11 authored Feb 12, 2016 by Nicolas Capens
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Surface.cpp src/Renderer/Surface.cpp +2 -2

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--- a/src/Renderer/Surface.cpp
+++ b/src/Renderer/Surface.cpp
@@ -1169,9 +1169,9 @@ namespace sw
 		external.format = format;
 		external.bytes = bytes(external.format);
 		external.pitchB = pitch;
-		external.pitchP = pitch / external.bytes;
+		external.pitchP = external.bytes ? pitch / external.bytes : 0;
 		external.sliceB = slice;
-		external.sliceP = slice / external.bytes;
+		external.sliceP = external.bytes ? slice / external.bytes : 0;
 		external.lock = LOCK_UNLOCKED;
 		external.dirty = true;