From d1608f8b5c907cdc3bc2418d969aff57f7d71590 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 29 Nov 2008 00:10:59 +0000
Subject: [PATCH] Fixed copy blit detection

---
 src/video/SDL_blit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/SDL_blit.c b/src/video/SDL_blit.c
index 2d9c13bca..c07fed8ae 100644
--- a/src/video/SDL_blit.c
+++ b/src/video/SDL_blit.c
@@ -236,7 +236,7 @@ SDL_CalculateBlit(SDL_Surface * surface)
     }
 
     /* Choose a standard blit function */
-    if (map->identity && !map->info.flags) {
+    if (map->identity && !(map->info.flags & ~SDL_COPY_RLE_DESIRED)) {
         /* Handle overlapping blits on the same surface */
         if (surface == dst) {
             blit = SDL_BlitCopyOverlap;