Mercurial > sdl-ios-xcode
view src/video/SDL_pixels_c.h @ 3474:1edb86163d62
Of COURSE that trick wouldn't work on all renderers. Fall back to something for now, hopefully figure out a better way to do this later.
If we have to, we can use vertical line and horizontal line textures for vertical and horizontal lines, and then create custom textures for diagonal lines and software render those. It's terrible, but at least it would be pixel perfect.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 21 Nov 2009 07:22:59 +0000 |
parents | 502adab079a4 |
children | f7b03b6838cb |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" /* Useful functions and variables from SDL_pixel.c */ #include "SDL_blit.h" /* Pixel format functions */ extern SDL_PixelFormat *SDL_AllocFormat(int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask); extern SDL_PixelFormat *SDL_InitFormat(SDL_PixelFormat * format, int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask); extern void SDL_FormatChanged(SDL_Surface * surface); extern void SDL_FreeFormat(SDL_PixelFormat * format); /* Blit mapping functions */ extern SDL_BlitMap *SDL_AllocBlitMap(void); extern void SDL_InvalidateMap(SDL_BlitMap * map); extern int SDL_MapSurface(SDL_Surface * src, SDL_Surface * dst); extern void SDL_FreeBlitMap(SDL_BlitMap * map); /* Miscellaneous functions */ extern int SDL_CalculatePitch(SDL_Surface * surface); extern void SDL_DitherColors(SDL_Color * colors, int bpp); extern Uint8 SDL_FindColor(SDL_Palette * pal, Uint8 r, Uint8 g, Uint8 b); extern void SDL_ApplyGamma(Uint16 * gamma, SDL_Color * colors, SDL_Color * output, int ncolors); /* vi: set ts=4 sw=4 expandtab: */