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mesa: don't call ctx->Driver.ReadPixels() if width or height is zero

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This commit is contained in:
Brian Paul 2009-04-02 13:05:55 -06:00
parent f6a3f1f52a
commit 7b9bf39543
1 changed files with 3 additions and 0 deletions
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3
src/mesa/main/readpix.c
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@ -170,6 +170,9 @@ _mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
return;
}
if (width == 0 || height == 0)
return; /* nothing to do */
if (ctx->Pack.BufferObj->Name) {
if (!_mesa_validate_pbo_access(2, &ctx->Pack, width, height, 1,
format, type, pixels)) {