From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 23 Sep 2005 02:16:49 +0000 (+0000)
Subject: fix clipped glReadPixels bug
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d5861c06f2b7c4039e410a30df828c9b43958566;p=mesa.git

fix clipped glReadPixels bug
---

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)) {