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-rw-r--r--src/mesa/main/buffers.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index cbbe3e8698..d9c18bfaaf 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -140,7 +140,9 @@ _mesa_Clear( GLbitfield mask )
return;
}
- if (ctx->DrawBuffer->Width == 0 || ctx->DrawBuffer->Height == 0)
+ if (ctx->DrawBuffer->Width == 0 || ctx->DrawBuffer->Height == 0 ||
+ ctx->DrawBuffer->_Xmin >= ctx->DrawBuffer->_Xmax ||
+ ctx->DrawBuffer->_Ymin >= ctx->DrawBuffer->_Ymax)
return;
if (ctx->RenderMode == GL_RENDER) {