From 9a563d5e696a7c8fc09f7da5a0d33a9675b00e4c Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Mon, 5 Nov 2007 15:42:55 -0700
Subject: [PATCH] no-op glCopyPixels if width or height is zero

---
 src/mesa/main/drawpix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c
index e4be0d496e9..ae9c7e29a15 100644
--- a/src/mesa/main/drawpix.c
+++ b/src/mesa/main/drawpix.c
@@ -239,7 +239,7 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
       return;
    }
 
-   if (!ctx->Current.RasterPosValid) {
+   if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
       return;
    }
 
-- 
2.30.2