src/video/SDL_pixels_c.h
author Sam Lantinga <slouken@libsdl.org>
Sun, 24 Mar 2013 09:51:01 -0700
changeset 7023 1d49dc7b5ce9
parent 6885 700f1b25f77f
child 8093 b43765095a6f
permissions -rw-r--r--
The palette unused value is treated as alpha and updated when setting the colorkey.
This fixes issues loading palettized images that have a colorkey with the same RGB values as another entry in the palette (e.g. bug 1746)
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "SDL_config.h"
    22 
    23 /* Useful functions and variables from SDL_pixel.c */
    24 
    25 #include "SDL_blit.h"
    26 
    27 /* Pixel format functions */
    28 extern int SDL_InitFormat(SDL_PixelFormat * format, Uint32 pixel_format);
    29 
    30 /* Blit mapping functions */
    31 extern SDL_BlitMap *SDL_AllocBlitMap(void);
    32 extern void SDL_InvalidateMap(SDL_BlitMap * map);
    33 extern int SDL_MapSurface(SDL_Surface * src, SDL_Surface * dst);
    34 extern void SDL_FreeBlitMap(SDL_BlitMap * map);
    35 
    36 /* Miscellaneous functions */
    37 extern int SDL_CalculatePitch(SDL_Surface * surface);
    38 extern void SDL_DitherColors(SDL_Color * colors, int bpp);
    39 extern Uint8 SDL_FindColor(SDL_Palette * pal, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
    40 
    41 /* vi: set ts=4 sw=4 expandtab: */