From fc075e4c81b67ad515b19cecf396393798caa328 Mon Sep 17 00:00:00 2001
From: Ronald Kinard <furyhunter600@gmail.com>
Date: Wed, 23 Jul 2014 23:02:21 -0500
Subject: [PATCH] sdl2: use ABGR8888 texture on little endian system
This is a massive performance boost on slow processors, because
before, the intermediary buffer had to be swizzled to ABGR8888
before being uploaded -- for large resolutions this was an
enormous performance penalty.
---
src/sdl2/i_video.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/sdl2/i_video.c b/src/sdl2/i_video.c
index 669825428..da5632e48 100644
--- a/src/sdl2/i_video.c
+++ b/src/sdl2/i_video.c
@@ -174,6 +174,7 @@ static void SDLSetMode(INT32 width, INT32 height, SDL_bool fullscreen)
int gmask;
int bmask;
int amask;
+ int sw_texture_format = SDL_PIXELFORMAT_ABGR8888;
realwidth = vid.width;
realheight = vid.height;
@@ -229,7 +230,12 @@ static void SDLSetMode(INT32 width, INT32 height, SDL_bool fullscreen)
{
SDL_DestroyTexture(texture);
}
- texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_STREAMING, width, height);
+#ifdef SDL_BIG_ENDIAN
+ sw_texture_format = SDL_PIXELFORMAT_RGBA8888;
+#else
+ sw_texture_format = SDL_PIXELFORMAT_ABGR8888;
+#endif
+ texture = SDL_CreateTexture(renderer, sw_texture_format, SDL_TEXTUREACCESS_STREAMING, width, height);
// Set up SW surface
if (vidSurface != NULL)
--
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