Mercurial > sdl-ios-xcode
annotate src/video/SDL_pixels_c.h @ 865:92615154bb68
Date: Sun, 29 Feb 2004 15:14:22 +0200
From: Martin_Storsj
Subject: Dynamic loading of ALSA
I recently discovered that SDL can dynamically load ESD and aRts, and
made a patch which adds this same functionality to ALSA.
The update for configure.in isn't too good (it should e.g. look for
libasound.so in other directories than /usr/lib), because I'm not too
good at shellscripting and autoconf.
The reason for using dlfcn.h and dlopen instead of SDL_LoadLibrary and
SDL_LoadFunction is that libasound uses versioned symbols, and it is
necessary to load the correct version using dlvsym. This isn't probably
any real portability issue, because ALSA is linux-only.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 02 Mar 2004 12:49:16 +0000 |
| parents | b8d311d90021 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 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 | |
|
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Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 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); |