view src/video/SDL_yuv_sw_c.h @ 2844:70b63882d2ef

The YCbCr texture extension works now that bytes_per_pixel() returns the correct value for YUV textures. Yay! I'm still cheering for Ryan's pixel shader instead, since once it works different shaders can handle all the YUV formats.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 06 Dec 2008 18:37:06 +0000
parents 5651642f4a78
children 99210400e8b9
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "SDL_video.h"
#include "SDL_sysvideo.h"

/* This is the software implementation of the YUV texture support */

typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;

SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);
int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
                                 int *pitch);
int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
                            const void *pixels, int pitch);
int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
                          int markDirty, void **pixels, int *pitch);
void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata);
int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
                        Uint32 target_format, int w, int h, void *pixels,
                        int pitch);
void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata);

/* vi: set ts=4 sw=4 expandtab: */