2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
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.
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.
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
22 #include "SDL_config.h"
24 /* Useful functions and variables from SDL_pixel.c */
28 /* Pixel format functions */
29 extern SDL_PixelFormat *SDL_AllocFormat(int bpp,
30 Uint32 Rmask, Uint32 Gmask,
31 Uint32 Bmask, Uint32 Amask);
32 extern SDL_PixelFormat *SDL_InitFormat(SDL_PixelFormat * format, int bpp,
33 Uint32 Rmask, Uint32 Gmask,
34 Uint32 Bmask, Uint32 Amask);
35 extern void SDL_FormatChanged(SDL_Surface * surface);
36 extern void SDL_FreeFormat(SDL_PixelFormat * format);
38 /* Blit mapping functions */
39 extern SDL_BlitMap *SDL_AllocBlitMap(void);
40 extern void SDL_InvalidateMap(SDL_BlitMap * map);
41 extern int SDL_MapSurface(SDL_Surface * src, SDL_Surface * dst);
42 extern void SDL_FreeBlitMap(SDL_BlitMap * map);
44 /* Miscellaneous functions */
45 extern int SDL_CalculatePitch(SDL_Surface * surface);
46 extern void SDL_DitherColors(SDL_Color * colors, int bpp);
47 extern Uint8 SDL_FindColor(SDL_Palette * pal, Uint8 r, Uint8 g, Uint8 b);
48 extern void SDL_ApplyGamma(Uint16 * gamma, SDL_Color * colors,
49 SDL_Color * output, int ncolors);
50 /* vi: set ts=4 sw=4 expandtab: */