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mesa: no-op glBufferSubData() on size==0

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Fixes http://bugs.freedesktop.org/show_bug.cgi?id=31439

NOTE: this is a candidate for the 7.9 branch
(cherry picked from commit 6e2e136428)
This commit is contained in:
Brian Paul 2010-11-09 12:24:49 -07:00 • committed by Ian Romanick
parent 4e7cdca57a
commit 0ff45dd5d7
1 changed files with 3 additions and 0 deletions
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3
src/mesa/main/bufferobj.c
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@ -1199,6 +1199,9 @@ _mesa_BufferSubDataARB(GLenum target, GLintptrARB offset,
return;
}
if (size == 0)
return;
bufObj->Written = GL_TRUE;
ASSERT(ctx->Driver.BufferSubData);