Mercurial > sdl-ios-xcode
view src/audio/ums/SDL_umsaudio.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 | 74212992fb08 |
children | c9b51268668f |
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/* AIX support for the SDL - Simple DirectMedia Layer Copyright (C) 2000 Carsten Griwodz This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Carsten Griwodz griff@kom.tu-darmstadt.de based on linux/SDL_dspaudio.h by Sam Lantinga */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif #ifndef _SDL_UMSaudio_h #define _SDL_UMSaudio_h #include "SDL_sysaudio.h" #include <UMS/UMSAudioDevice.h> /* Hidden "this" pointer for the video functions */ #define _THIS SDL_AudioDevice *this struct SDL_PrivateAudioData { /* Pointer to the (open) UMS audio device */ Environment* ev; UMSAudioDevice umsdev; /* Raw mixing buffer */ UMSAudioTypes_Buffer playbuf; UMSAudioTypes_Buffer fillbuf; long bytesPerSample; }; #endif /* _SDL_UMSaudio_h */