Mercurial > sdl-ios-xcode
view src/audio/SDL_audiodev.c @ 3255:f8a4214ce90a
Fixed compiling on 64-bit Windows
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 06 Sep 2009 04:40:54 +0000 |
parents | 99210400e8b9 |
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" /* Get the name of the audio device we use for output */ #if SDL_AUDIO_DRIVER_BSD || SDL_AUDIO_DRIVER_OSS || SDL_AUDIO_DRIVER_SUNAUDIO #include <fcntl.h> #include <sys/types.h> #include <sys/stat.h> #include "SDL_stdinc.h" #include "SDL_audiodev_c.h" #ifndef _PATH_DEV_DSP #if defined(__NETBSD__) || defined(__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 static inline void test_device(const char *fname, int flags, int (*test) (int fd), char ***devices, int *devCount) { struct stat sb; if ((stat(fname, &sb) == 0) && (S_ISCHR(sb.st_mode))) { int audio_fd = open(fname, flags, 0); if ((audio_fd >= 0) && (test(audio_fd))) { void *p = SDL_realloc(*devices, ((*devCount) + 1) * sizeof(char *)); if (p != NULL) { size_t len = strlen(fname) + 1; char *str = (char *) SDL_malloc(len); *devices = (char **) p; if (str != NULL) { SDL_strlcpy(str, fname, len); (*devices)[(*devCount)++] = str; } } close(audio_fd); } } } void SDL_FreeUnixAudioDevices(char ***devices, int *devCount) { int i = *devCount; if ((i > 0) && (*devices != NULL)) { while (i--) { SDL_free((*devices)[i]); } } if (*devices != NULL) { SDL_free(*devices); } *devices = NULL; *devCount = 0; } static int test_stub(int fd) { return 1; } void SDL_EnumUnixAudioDevices(int flags, int classic, int (*test) (int fd), char ***devices, int *devCount) { const char *audiodev; char audiopath[1024]; if (test == NULL) test = test_stub; /* 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; } } } test_device(audiodev, flags, test, devices, devCount); if (SDL_strlen(audiodev) < (sizeof(audiopath) - 3)) { int instance = 0; while (instance++ <= 64) { SDL_snprintf(audiopath, SDL_arraysize(audiopath), "%s%d", audiodev, instance); test_device(audiopath, flags, test, devices, devCount); } } } #endif /* Audio driver selection */ /* vi: set ts=4 sw=4 expandtab: */