1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 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 */
29extern SDL_PixelFormat *SDL_AllocFormat(int bpp,
30		Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
31extern SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp,
32		Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
33extern void SDL_FormatChanged(SDL_Surface *surface);
34extern void SDL_FreeFormat(SDL_PixelFormat *format);
35
36/* Blit mapping functions */
37extern SDL_BlitMap *SDL_AllocBlitMap(void);
38extern void SDL_InvalidateMap(SDL_BlitMap *map);
39extern int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst);
40extern void SDL_FreeBlitMap(SDL_BlitMap *map);
41
42/* Miscellaneous functions */
43extern Uint16 SDL_CalculatePitch(SDL_Surface *surface);
44extern void SDL_DitherColors(SDL_Color *colors, int bpp);
45extern Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b);
46extern void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors);
47