annotate src/video/SDL_pixels_c.h @ 1415:a30f8553eeb1

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author Sam Lantinga <slouken@libsdl.org>
date Wed, 22 Feb 2006 00:33:10 +0000
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children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Useful functions and variables from SDL_pixel.c */
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25
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26 #include "SDL_blit.h"
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27
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28 /* Pixel format functions */
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29 extern SDL_PixelFormat *SDL_AllocFormat(int bpp,
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30 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
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31 extern SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp,
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32 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
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33 extern void SDL_FormatChanged(SDL_Surface *surface);
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34 extern void SDL_FreeFormat(SDL_PixelFormat *format);
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35
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36 /* Blit mapping functions */
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37 extern SDL_BlitMap *SDL_AllocBlitMap(void);
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38 extern void SDL_InvalidateMap(SDL_BlitMap *map);
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39 extern int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst);
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40 extern void SDL_FreeBlitMap(SDL_BlitMap *map);
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41
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42 /* Miscellaneous functions */
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43 extern Uint16 SDL_CalculatePitch(SDL_Surface *surface);
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44 extern void SDL_DitherColors(SDL_Color *colors, int bpp);
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45 extern Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b);
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46 extern void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors);