From 698d0e471aed6ada0530e84f4e2edcef0af4e39a Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Wed, 25 Aug 2010 16:44:16 +0200
Subject: [PATCH] server: Fix alloc_lz_image_surface stride allocations

All lz surfaces are not 4 bytes per pixel, calculate the right stride
based on the pixman format.
---
 canvas_utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/canvas_utils.c b/canvas_utils.c
index 1f6eca6..020b23c 100644
--- a/canvas_utils.c
+++ b/canvas_utils.c
@@ -290,7 +290,7 @@ pixman_image_t *alloc_lz_image_surface(LzDecodeUsrData *canvas_data,
     int stride;
     pixman_image_t *surface = NULL;
 
-    stride = (gross_pixels / height) * 4;
+    stride = (gross_pixels / height) * (PIXMAN_FORMAT_BPP (pixman_format) / 8);
 
     if (!top_down) {
         stride = -stride;