slouken@0: /*
slouken@5535:   Simple DirectMedia Layer
slouken@8149:   Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
slouken@0: 
slouken@5535:   This software is provided 'as-is', without any express or implied
slouken@5535:   warranty.  In no event will the authors be held liable for any damages
slouken@5535:   arising from the use of this software.
slouken@0: 
slouken@5535:   Permission is granted to anyone to use this software for any purpose,
slouken@5535:   including commercial applications, and to alter it and redistribute it
slouken@5535:   freely, subject to the following restrictions:
slouken@0: 
slouken@5535:   1. The origin of this software must not be misrepresented; you must not
slouken@5535:      claim that you wrote the original software. If you use this software
slouken@5535:      in a product, an acknowledgment in the product documentation would be
slouken@5535:      appreciated but is not required.
slouken@5535:   2. Altered source versions must be plainly marked as such, and must not be
slouken@5535:      misrepresented as being the original software.
slouken@5535:   3. This notice may not be removed or altered from any source distribution.
slouken@0: */
icculus@8093: #include "../SDL_internal.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@7759: int SDL_SW_UpdateYUVTexturePlanar(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@7759:                                   const Uint8 *Yplane, int Ypitch,
slouken@7759:                                   const Uint8 *Uplane, int Upitch,
slouken@7759:                                   const Uint8 *Vplane, int Vpitch);
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: */