Mercurial > sdl-ios-xcode
diff src/audio/SDL_audiodev.c @ 1895:c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 10 Jul 2006 21:04:37 +0000 |
parents | 12b6d331d82a |
children | 5f6550e5184f 7852b5b78af5 |
line wrap: on
line diff
--- a/src/audio/SDL_audiodev.c Thu Jul 06 18:01:37 2006 +0000 +++ b/src/audio/SDL_audiodev.c Mon Jul 10 21:04:37 2006 +0000 @@ -47,53 +47,56 @@ #endif -int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) +int +SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) { - const char *audiodev; - int audio_fd; - char audiopath[1024]; + const char *audiodev; + int audio_fd; + char audiopath[1024]; - /* Figure out what our audio device is */ - if ( ((audiodev=SDL_getenv("SDL_PATH_DSP")) == NULL) && - ((audiodev=SDL_getenv("AUDIODEV")) == NULL) ) { - if ( classic ) { - audiodev = _PATH_DEV_AUDIO; - } else { - struct stat sb; + /* Figure out what our audio device is */ + if (((audiodev = SDL_getenv("SDL_PATH_DSP")) == NULL) && + ((audiodev = SDL_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)) && - ((stat(_PATH_DEV_DSP24, &sb) == 0) && S_ISCHR(sb.st_mode)) ) { - audiodev = _PATH_DEV_DSP24; - } else { - audiodev = _PATH_DEV_DSP; - } - } - } - audio_fd = open(audiodev, flags, 0); + /* Added support for /dev/sound/\* in Linux 2.4 */ + if (((stat("/dev/sound", &sb) == 0) && S_ISDIR(sb.st_mode)) + && ((stat(_PATH_DEV_DSP24, &sb) == 0) + && S_ISCHR(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) && (SDL_strlen(audiodev) < (sizeof(audiopath)-3)) ) { - int exists, instance; - struct stat sb; + /* If the first open fails, look for other devices */ + if ((audio_fd < 0) && (SDL_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 */ - SDL_snprintf(audiopath, SDL_arraysize(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 ) { - SDL_strlcpy(path, audiodev, maxlen); - path[maxlen-1] = '\0'; - } - return(audio_fd); + instance = 1; + do { /* Don't use errno ENOENT - it may not be thread-safe */ + SDL_snprintf(audiopath, SDL_arraysize(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) { + SDL_strlcpy(path, audiodev, maxlen); + path[maxlen - 1] = '\0'; + } + return (audio_fd); } #elif SDL_AUDIO_DRIVER_PAUD @@ -110,70 +113,71 @@ #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' } +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) +static int +OpenUserDefinedDevice(char *path, int maxlen, int flags) { - const char *audiodev; - int audio_fd; + const char *audiodev; + int audio_fd; - /* Figure out what our audio device is */ - if ((audiodev=SDL_getenv("SDL_PATH_DSP")) == NULL) { - audiodev=SDL_getenv("AUDIODEV"); - } - if ( audiodev == NULL ) { - return -1; - } - audio_fd = open(audiodev, flags, 0); - if ( path != NULL ) { - SDL_strlcpy(path, audiodev, maxlen); - path[maxlen-1] = '\0'; - } - return audio_fd; + /* Figure out what our audio device is */ + if ((audiodev = SDL_getenv("SDL_PATH_DSP")) == NULL) { + audiodev = SDL_getenv("AUDIODEV"); + } + if (audiodev == NULL) { + return -1; + } + audio_fd = open(audiodev, flags, 0); + if (path != NULL) { + SDL_strlcpy(path, audiodev, maxlen); + path[maxlen - 1] = '\0'; + } + return audio_fd; } -int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) +int +SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) { struct stat sb; - int audio_fd; - char audiopath[1024]; - int cycle; + int audio_fd; + char audiopath[1024]; + int cycle; - audio_fd = OpenUserDefinedDevice(path,maxlen,flags); - if ( audio_fd != -1 ) { + audio_fd = OpenUserDefinedDevice(path, maxlen, flags); + if (audio_fd != -1) { return audio_fd; } - cycle = 0; - while( devsettings[cycle][0] != '\0' ) { - SDL_snprintf( audiopath, SDL_arraysize(audiopath), - _PATH_DEV_DSP, - devsettings[cycle][0], - devsettings[cycle][1], - devsettings[cycle][2]); + cycle = 0; + while (devsettings[cycle][0] != '\0') { + SDL_snprintf(audiopath, SDL_arraysize(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 ) { - SDL_strlcpy( path, audiopath, maxlen ); - } - return audio_fd; - } - } + if (stat(audiopath, &sb) == 0) { + audio_fd = open(audiopath, flags, 0); + if (audio_fd > 0) { + if (path != NULL) { + SDL_strlcpy(path, audiopath, maxlen); + } + return audio_fd; + } + } } return -1; } #endif /* Audio driver selection */ +/* vi: set ts=4 sw=4 expandtab: */