| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | /* Useful functions and variables from SDL_pixel.c */ |
| 25 | |
| 26 | #include "SDL_blit.h" |
| 27 | |
| 28 | /* Pixel format functions */ |
| 29 | extern SDL_PixelFormat *SDL_AllocFormat(int bpp, |
| 30 | Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask); |
| 31 | extern SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp, |
| 32 | Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask); |
| 33 | extern void SDL_FormatChanged(SDL_Surface *surface); |
| 34 | extern void SDL_FreeFormat(SDL_PixelFormat *format); |
| 35 | |
| 36 | /* Blit mapping functions */ |
| 37 | extern SDL_BlitMap *SDL_AllocBlitMap(void); |
| 38 | extern void SDL_InvalidateMap(SDL_BlitMap *map); |
| 39 | extern int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst); |
| 40 | extern void SDL_FreeBlitMap(SDL_BlitMap *map); |
| 41 | |
| 42 | /* Miscellaneous functions */ |
| 43 | extern Uint16 SDL_CalculatePitch(SDL_Surface *surface); |
| 44 | extern void SDL_DitherColors(SDL_Color *colors, int bpp); |
| 45 | extern Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b); |
| 46 | extern void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors); |