From d5861c06f2b7c4039e410a30df828c9b43958566 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 23 Sep 2005 02:16:49 +0000
Subject: fix clipped glReadPixels bug

---
 src/mesa/swrast/s_readpix.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/mesa/swrast/s_readpix.c')

diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index 9e80908ba1f..6171b3440e6 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -507,6 +507,9 @@ _swrast_ReadPixels( GLcontext *ctx,
 
    /* Do all needed clipping here, so that we can forget about it later */
    clippedPacking = *packing;
+   if (clippedPacking.RowLength == 0) {
+      clippedPacking.RowLength = width;
+   }
    if (!_mesa_clip_readpixels(ctx, &x, &y, &width, &height,
                               &clippedPacking.SkipPixels,
                               &clippedPacking.SkipRows)) {
-- 
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