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annotate src/video/SDL_pixels_c.h @ 4802:f14a8c05f5bb

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Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
author Eli Gottlieb <eligottlieb@gmail.com>
date Sun, 18 Jul 2010 23:05:40 -0400
parents f7b03b6838cb
children fb424691cfc7
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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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,
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31 Uint32 Bmask, Uint32 Amask);
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32 extern SDL_PixelFormat *SDL_InitFormat(SDL_PixelFormat * format, int bpp,
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33 Uint32 Rmask, Uint32 Gmask,
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34 Uint32 Bmask, Uint32 Amask);
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35 extern void SDL_FormatChanged(SDL_Surface * surface);
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36 extern void SDL_FreeFormat(SDL_PixelFormat * format);
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37
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38 /* Blit mapping functions */
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39 extern SDL_BlitMap *SDL_AllocBlitMap(void);
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40 extern void SDL_InvalidateMap(SDL_BlitMap * map);
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41 extern int SDL_MapSurface(SDL_Surface * src, SDL_Surface * dst);
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42 extern void SDL_FreeBlitMap(SDL_BlitMap * map);
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44 /* Miscellaneous functions */
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45 extern int SDL_CalculatePitch(SDL_Surface * surface);
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46 extern void SDL_DitherColors(SDL_Color * colors, int bpp);
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47 extern Uint8 SDL_FindColor(SDL_Palette * pal, Uint8 r, Uint8 g, Uint8 b);
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48 extern void SDL_ApplyGamma(Uint16 * gamma, SDL_Color * colors,
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49 SDL_Color * output, int ncolors);
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50 /* vi: set ts=4 sw=4 expandtab: */