bgr32 pixel format support


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1912 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/sdl.c b/sdl.c
index 72a7080..ec4f93c 100644
--- a/sdl.c
+++ b/sdl.c
@@ -81,6 +81,11 @@
     ds->data = screen->pixels;
     ds->linesize = screen->pitch;
     ds->depth = screen->format->BitsPerPixel;
+    if (ds->depth == 32 && screen->format->Rshift == 0) {
+        ds->bgr = 1;
+    } else {
+        ds->bgr = 0;
+    }
     ds->width = w;
     ds->height = h;
 }