Mercurial > sdl-ios-xcode
view src/audio/SDL_audiodev.c @ 916:46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
From: Chris Taylor
Subject: SDL for Macintosh Programmer's Workshop: removed dynamic loading
I'm working on a game called D2X which uses SDL, and I recently ported
it to Mac OS 9. I used MPW to build it. It uses OpenGL. To get it to
work, I had to build SDL so it doesn't dynamically load OpenGL. This is
because I don't think MPW supports dynamic loading. The following patch
makes sure when SDL is built under MPW, dynamic loading of shared
libraries is disabled.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 25 Jul 2004 19:43:56 +0000 |
parents | b8d311d90021 |
children | 0f3aa6ab3341 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga 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 Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* Get the name of the audio device we use for output */ #if defined(unix) || defined(__unix__) #include <stdlib.h> #include <stdio.h> #include <fcntl.h> #include <sys/types.h> #include <sys/stat.h> #include <string.h> #include "SDL_audiodev_c.h" #ifndef _PATH_DEV_DSP #ifdef __OpenBSD__ #define _PATH_DEV_DSP "/dev/audio" #else #define _PATH_DEV_DSP "/dev/dsp" #endif #endif #ifndef _PATH_DEV_DSP24 #define _PATH_DEV_DSP24 "/dev/sound/dsp" #endif #ifndef _PATH_DEV_AUDIO #define _PATH_DEV_AUDIO "/dev/audio" #endif int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) { const char *audiodev; int audio_fd; char audiopath[1024]; /* Figure out what our audio device is */ if ( ((audiodev=getenv("SDL_PATH_DSP")) == NULL) && ((audiodev=getenv("AUDIODEV")) == NULL) ) { if ( classic ) { audiodev = _PATH_DEV_AUDIO; } else { struct stat sb; /* Added support for /dev/sound/\* in Linux 2.4 */ if ( (stat("/dev/sound", &sb) == 0) && S_ISDIR(sb.st_mode) ) { audiodev = _PATH_DEV_DSP24; } else { audiodev = _PATH_DEV_DSP; } } } audio_fd = open(audiodev, flags, 0); /* If the first open fails, look for other devices */ if ( (audio_fd < 0) && (strlen(audiodev) < (sizeof(audiopath)-3)) ) { int exists, instance; struct stat sb; instance = 1; do { /* Don't use errno ENOENT - it may not be thread-safe */ sprintf(audiopath, "%s%d", audiodev, instance++); exists = 0; if ( stat(audiopath, &sb) == 0 ) { exists = 1; audio_fd = open(audiopath, flags, 0); } } while ( exists && (audio_fd < 0) ); audiodev = audiopath; } if ( path != NULL ) { strncpy(path, audiodev, maxlen); path[maxlen-1] = '\0'; } return(audio_fd); } #elif defined(_AIX) /* Get the name of the audio device we use for output */ #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <string.h> #include "SDL_audiodev_c.h" #ifndef _PATH_DEV_DSP #define _PATH_DEV_DSP "/dev/%caud%c/%c" #endif char devsettings[][3] = { { 'p', '0', '1' }, { 'p', '0', '2' }, { 'p', '0', '3' }, { 'p', '0', '4' }, { 'p', '1', '1' }, { 'p', '1', '2' }, { 'p', '1', '3' }, { 'p', '1', '4' }, { 'p', '2', '1' }, { 'p', '2', '2' }, { 'p', '2', '3' }, { 'p', '2', '4' }, { 'p', '3', '1' }, { 'p', '3', '2' }, { 'p', '3', '3' }, { 'p', '3', '4' }, { 'b', '0', '1' }, { 'b', '0', '2' }, { 'b', '0', '3' }, { 'b', '0', '4' }, { 'b', '1', '1' }, { 'b', '1', '2' }, { 'b', '1', '3' }, { 'b', '1', '4' }, { 'b', '2', '1' }, { 'b', '2', '2' }, { 'b', '2', '3' }, { 'b', '2', '4' }, { 'b', '3', '1' }, { 'b', '3', '2' }, { 'b', '3', '3' }, { 'b', '3', '4' }, { '\0', '\0', '\0' } }; static int OpenUserDefinedDevice(char *path, int maxlen, int flags) { const char *audiodev; int audio_fd; /* Figure out what our audio device is */ if ((audiodev=getenv("SDL_PATH_DSP")) == NULL) { audiodev=getenv("AUDIODEV"); } if ( audiodev == NULL ) { return -1; } audio_fd = open(audiodev, flags, 0); if ( path != NULL ) { strncpy(path, audiodev, maxlen); path[maxlen-1] = '\0'; } return audio_fd; } int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) { struct stat sb; int audio_fd; char audiopath[1024]; int cycle; audio_fd = OpenUserDefinedDevice(path,maxlen,flags); if ( audio_fd != -1 ) { return audio_fd; } cycle = 0; while( devsettings[cycle][0] != '\0' ) { sprintf( audiopath, _PATH_DEV_DSP, devsettings[cycle][0], devsettings[cycle][1], devsettings[cycle][2]); if ( stat(audiopath, &sb) == 0 ) { audio_fd = open(audiopath, flags, 0); if ( audio_fd > 0 ) { if ( path != NULL ) { strncpy( path, audiopath, maxlen ); path[maxlen-1] = '\0'; } return audio_fd; } } } return -1; } #endif /* UNIX system */