SDL/SDL_pixels_c.h

   1 /*
   2     SDL - Simple DirectMedia Layer
   3     Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga
   4
   5     This library is free software; you can redistribute it and/or
   6     modify it under the terms of the GNU Library General Public
   7     License as published by the Free Software Foundation; either
   8     version 2 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     Library General Public License for more details.
  14
  15     You should have received a copy of the GNU Library General Public
  16     License along with this library; if not, write to the Free
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18
  19     Sam Lantinga
  20     slouken@libsdl.org
  21 */
  22
  23 #ifdef SAVE_RCSID
  24 static char rcsid =
  25  "@(#) $Id$";
  26 #endif
  27
  28 /* Useful functions and variables from SDL_pixel.c */
  29
  30 #include "SDL_blit.h"
  31
  32 /* Pixel format functions */
  33 extern SDL_PixelFormat *SDL_AllocFormat(int bpp,
  34                 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
  35 extern SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp,
  36                 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
  37 extern void SDL_FormatChanged(SDL_Surface *surface);
  38 extern void SDL_FreeFormat(SDL_PixelFormat *format);
  39
  40 /* Blit mapping functions */
  41 extern SDL_BlitMap *SDL_AllocBlitMap(void);
  42 extern void SDL_InvalidateMap(SDL_BlitMap *map);
  43 extern int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst);
  44 extern void SDL_FreeBlitMap(SDL_BlitMap *map);
  45
  46 /* Miscellaneous functions */
  47 extern Uint16 SDL_CalculatePitch(SDL_Surface *surface);
  48 extern void SDL_DitherColors(SDL_Color *colors, int bpp);
  49 extern Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b);
  50 extern void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors);