From 7d8df58a631a4e6070a64788f3faf5746fd5446a Mon Sep 17 00:00:00 2001
From: "Xiang, Haihao" <haihao.xiang@intel.com>
Date: Wed, 13 Feb 2008 15:57:44 +0800
Subject: [PATCH] _mesa_swizzle_ubyt_image: Don't use single swizzle_copy call
 if components don't match. fix #13508

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

diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 9b8a06df145..2ac458b45fa 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -809,6 +809,7 @@ _mesa_swizzle_ubyte_image(GLcontext *ctx,
 /*    _mesa_printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]);  */
 
    if (srcRowStride == dstRowStride &&
+       srcComponents == dstComponents &&
        srcRowStride == srcWidth * srcComponents &&
        dimensions < 3) {
       /* 1 and 2D images only */