From 29a53a94358d0476044be2fe2602c4c210f3ea7e Mon Sep 17 00:00:00 2001
From: Glenn Maynard <gmaynard@users.sourceforge.net>
Date: Mon, 30 Jun 2003 03:14:13 +0000
Subject: [PATCH] use FMT_A1BGR5

---
 stepmania/src/BannerCache.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/stepmania/src/BannerCache.cpp b/stepmania/src/BannerCache.cpp
index d62ea603f1..490e5c7bcc 100644
--- a/stepmania/src/BannerCache.cpp
+++ b/stepmania/src/BannerCache.cpp
@@ -369,9 +369,10 @@ void BannerCache::CacheBannerInternal( CString BannerPath )
 		ConvertSDLSurface(img, img->w, img->h, 32, 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000);
 		zoomSurface(img, width, height);
 
-		/* Dither to the final format. */
+		/* Dither to the final format.  We use A1RGB5, since that's usually supported
+		 * natively by both OpenGL and D3D. */
 		SDL_Surface *dst = SDL_CreateRGBSurfaceSane(SDL_SWSURFACE, img->w, img->h,
-					16, 0xF800, 0x07C0, 0x003E, 0x0001 );
+					16, 0x7C00, 0x03E0, 0x001F, 0x8000 );
 
 		SM_SDL_ErrorDiffusionDither(img, dst);
 		SDL_FreeSurface( img );