slouken@0: /*
slouken@0:     SDL - Simple DirectMedia Layer
slouken@5262:     Copyright (C) 1997-2011 Sam Lantinga
slouken@0: 
slouken@0:     This library is free software; you can redistribute it and/or
slouken@1312:     modify it under the terms of the GNU Lesser General Public
slouken@0:     License as published by the Free Software Foundation; either
slouken@1312:     version 2.1 of the License, or (at your option) any later version.
slouken@0: 
slouken@0:     This library is distributed in the hope that it will be useful,
slouken@0:     but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@0:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@1312:     Lesser General Public License for more details.
slouken@0: 
slouken@1312:     You should have received a copy of the GNU Lesser General Public
slouken@1312:     License along with this library; if not, write to the Free Software
slouken@1312:     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
slouken@0: 
slouken@0:     Sam Lantinga
slouken@252:     slouken@libsdl.org
slouken@0: */
slouken@1402: #include "SDL_config.h"
slouken@0: 
slouken@0: #include "SDL_video.h"
slouken@0: 
slouken@1895: /* This is the software implementation of the YUV texture support */
slouken@0: 
slouken@3257: struct SDL_SW_YUVTexture
slouken@3257: {
slouken@3257:     Uint32 format;
slouken@3257:     Uint32 target_format;
slouken@3257:     int w, h;
slouken@3257:     Uint8 *pixels;
slouken@3257:     int *colortab;
slouken@3257:     Uint32 *rgb_2_pix;
slouken@3257:     void (*Display1X) (int *colortab, Uint32 * rgb_2_pix,
slouken@3257:                        unsigned char *lum, unsigned char *cr,
slouken@3257:                        unsigned char *cb, unsigned char *out,
slouken@3257:                        int rows, int cols, int mod);
slouken@3257:     void (*Display2X) (int *colortab, Uint32 * rgb_2_pix,
slouken@3257:                        unsigned char *lum, unsigned char *cr,
slouken@3257:                        unsigned char *cb, unsigned char *out,
slouken@3257:                        int rows, int cols, int mod);
slouken@3257: 
slouken@3257:     /* These are just so we don't have to allocate them separately */
slouken@3257:     Uint16 pitches[3];
slouken@3257:     Uint8 *planes[3];
slouken@3257: 
slouken@3257:     /* This is a temporary surface in case we have to stretch copy */
slouken@3257:     SDL_Surface *stretch;
slouken@3257:     SDL_Surface *display;
slouken@3257: };
slouken@3257: 
slouken@1895: typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
slouken@0: 
slouken@2781: SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);
slouken@1895: int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
slouken@1895:                                  int *pitch);
slouken@1895: int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@1895:                             const void *pixels, int pitch);
slouken@1895: int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@5156:                           void **pixels, int *pitch);
slouken@1895: void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata);
slouken@1895: int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
slouken@1895:                         Uint32 target_format, int w, int h, void *pixels,
slouken@1895:                         int pitch);
slouken@1895: void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata);
slouken@0: 
slouken@1895: /* vi: set ts=4 sw=4 expandtab: */