-#if defined(PLATFORM_HPUX)
-static void InitAudioDevice_HPUX(struct AudioFormatInfo *afmt)
-{
- struct audio_describe ainfo;
- int audio_ctl;
-
- audio_ctl = open("/dev/audioCtl", O_WRONLY | O_NDELAY);
- if (audio_ctl == -1)
- Error(ERR_EXIT_SOUND_SERVER, "cannot open audio device -- no sounds");
-
- if (ioctl(audio_ctl, AUDIO_DESCRIBE, &ainfo) == -1)
- Error(ERR_EXIT_SOUND_SERVER, "no audio info -- no sounds");
-
- if (ioctl(audio_ctl, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_ULAW) == -1)
- Error(ERR_EXIT_SOUND_SERVER, "ulaw audio not available -- no sounds");
-
- ioctl(audio_ctl, AUDIO_SET_CHANNELS, 1);
- ioctl(audio_ctl, AUDIO_SET_SAMPLE_RATE, 8000);
-
- afmt->format = AUDIO_FORMAT_U8;
- afmt->stereo = FALSE;
- afmt->sample_rate = 8000;
-
- close(audio_ctl);
-}
-#endif /* PLATFORM_HPUX */
-
-static void InitAudioDevice(struct AudioFormatInfo *afmt)
-{
- afmt->stereo = TRUE;
- afmt->format = AUDIO_FORMAT_UNKNOWN;
- afmt->sample_rate = DEFAULT_AUDIO_SAMPLE_RATE;
- afmt->fragment_size = DEFAULT_AUDIO_FRAGMENT_SIZE;
-
-#if defined(AUDIO_LINUX_IOCTL)
- InitAudioDevice_Linux(afmt);
-#elif defined(PLATFORM_NETBSD)
- InitAudioDevice_NetBSD(afmt);
-#elif defined(PLATFORM_HPUX)
- InitAudioDevice_HPUX(afmt);
-#else
- /* generic /dev/audio stuff might be placed here */
-#endif
-}
-
-
-/* ------------------------------------------------------------------------- */
-/* functions for communication between main process and sound mixer process */
-/* ------------------------------------------------------------------------- */
-
-static void SendSoundControlToMixerProcess(SoundControl *snd_ctrl)
-{
- if (IS_CHILD_PROCESS())
- return;
-
- if (write(audio.mixer_pipe[1], snd_ctrl, sizeof(SoundControl)) < 0)
- {
- Error(ERR_WARN, "cannot pipe to child process -- no sounds");
- audio.sound_available = audio.sound_enabled = FALSE;
- return;
- }
-}
-
-static void ReadSoundControlFromMainProcess(SoundControl *snd_ctrl)
-{
- if (IS_PARENT_PROCESS())
- return;
-
- if (read(audio.mixer_pipe[0], snd_ctrl, sizeof(SoundControl))
- != sizeof(SoundControl))
- Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
-}
-
-static void WriteReloadInfoToPipe(char *set_identifier, int type)
-{
- SoundControl snd_ctrl;
- TreeInfo *ti = (type == SND_CTRL_RELOAD_SOUNDS ? artwork.snd_current :
- artwork.mus_current);
- unsigned long str_size1 = strlen(leveldir_current->fullpath) + 1;
- unsigned long str_size2 = strlen(leveldir_current->sounds_path) + 1;
- unsigned long str_size3 = strlen(leveldir_current->music_path) + 1;
- unsigned long str_size4 = strlen(ti->basepath) + 1;
- unsigned long str_size5 = strlen(ti->fullpath) + 1;
- boolean override_level_artwork = (type == SND_CTRL_RELOAD_SOUNDS ?
- setup.override_level_sounds :
- setup.override_level_music);
-
- if (IS_CHILD_PROCESS())
- return;
-
- if (leveldir_current == NULL) /* should never happen */
- Error(ERR_EXIT, "leveldir_current == NULL");
-
- memset(&snd_ctrl, 0, sizeof(SoundControl)); /* to make valgrind happy */
-
- snd_ctrl.active = FALSE;
- snd_ctrl.state = type;
- snd_ctrl.data_len = strlen(set_identifier) + 1;
-
- if (write(audio.mixer_pipe[1], &snd_ctrl,
- sizeof(snd_ctrl)) < 0 ||
- write(audio.mixer_pipe[1], set_identifier,
- snd_ctrl.data_len) < 0 ||
- write(audio.mixer_pipe[1], &override_level_artwork,
- sizeof(boolean)) < 0 ||
- write(audio.mixer_pipe[1], leveldir_current,
- sizeof(TreeInfo)) < 0 ||
- write(audio.mixer_pipe[1], ti,
- sizeof(TreeInfo)) < 0 ||
- write(audio.mixer_pipe[1], &str_size1,
- sizeof(unsigned long)) < 0 ||
- write(audio.mixer_pipe[1], &str_size2,
- sizeof(unsigned long)) < 0 ||
- write(audio.mixer_pipe[1], &str_size3,
- sizeof(unsigned long)) < 0 ||
- write(audio.mixer_pipe[1], &str_size4,
- sizeof(unsigned long)) < 0 ||
- write(audio.mixer_pipe[1], &str_size5,
- sizeof(unsigned long)) < 0 ||
- write(audio.mixer_pipe[1], leveldir_current->fullpath,
- str_size1) < 0 ||
- write(audio.mixer_pipe[1], leveldir_current->sounds_path,
- str_size2) < 0 ||
- write(audio.mixer_pipe[1], leveldir_current->music_path,
- str_size3) < 0 ||
- write(audio.mixer_pipe[1], ti->basepath,
- str_size4) < 0 ||
- write(audio.mixer_pipe[1], ti->fullpath,
- str_size5) < 0)
- {
- Error(ERR_WARN, "cannot pipe to child process -- no sounds");
- audio.sound_available = audio.sound_enabled = FALSE;
- return;
- }
-}
-
-static void ReadReloadInfoFromPipe(SoundControl *snd_ctrl)
-{
- TreeInfo **ti_ptr = ((snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS) ?
- &artwork.snd_current : &artwork.mus_current);
- TreeInfo *ti = *ti_ptr;
- unsigned long str_size1, str_size2, str_size3, str_size4, str_size5;
- static char *set_identifier = NULL;
- boolean *override_level_artwork = (snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS ?
- &setup.override_level_sounds :
- &setup.override_level_music);
-
- if (set_identifier)
- free(set_identifier);
-
- set_identifier = checked_malloc(snd_ctrl->data_len);
-
- if (leveldir_current == NULL)
- leveldir_current = checked_calloc(sizeof(TreeInfo));
-
- if (ti == NULL)
- ti = *ti_ptr = checked_calloc(sizeof(TreeInfo));
- if (leveldir_current->fullpath != NULL)
- free(leveldir_current->fullpath);
- if (leveldir_current->sounds_path != NULL)
- free(leveldir_current->sounds_path);
- if (leveldir_current->music_path != NULL)
- free(leveldir_current->music_path);
- if (ti->basepath != NULL)
- free(ti->basepath);
- if (ti->fullpath != NULL)
- free(ti->fullpath);
-
- if (read(audio.mixer_pipe[0], set_identifier,
- snd_ctrl->data_len) != snd_ctrl->data_len ||
- read(audio.mixer_pipe[0], override_level_artwork,
- sizeof(boolean)) != sizeof(boolean) ||
- read(audio.mixer_pipe[0], leveldir_current,
- sizeof(TreeInfo)) != sizeof(TreeInfo) ||
- read(audio.mixer_pipe[0], ti,
- sizeof(TreeInfo)) != sizeof(TreeInfo) ||
- read(audio.mixer_pipe[0], &str_size1,
- sizeof(unsigned long)) != sizeof(unsigned long) ||
- read(audio.mixer_pipe[0], &str_size2,
- sizeof(unsigned long)) != sizeof(unsigned long) ||
- read(audio.mixer_pipe[0], &str_size3,
- sizeof(unsigned long)) != sizeof(unsigned long) ||
- read(audio.mixer_pipe[0], &str_size4,
- sizeof(unsigned long)) != sizeof(unsigned long) ||
- read(audio.mixer_pipe[0], &str_size5,
- sizeof(unsigned long)) != sizeof(unsigned long))
- Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
-
- leveldir_current->fullpath = checked_calloc(str_size1);
- leveldir_current->sounds_path = checked_calloc(str_size2);
- leveldir_current->music_path = checked_calloc(str_size3);
- ti->basepath = checked_calloc(str_size4);
- ti->fullpath = checked_calloc(str_size5);
-
- if (read(audio.mixer_pipe[0], leveldir_current->fullpath,
- str_size1) != str_size1 ||
- read(audio.mixer_pipe[0], leveldir_current->sounds_path,
- str_size2) != str_size2 ||
- read(audio.mixer_pipe[0], leveldir_current->music_path,
- str_size3) != str_size3 ||
- read(audio.mixer_pipe[0], ti->basepath,
- str_size4) != str_size4 ||
- read(audio.mixer_pipe[0], ti->fullpath,
- str_size5) != str_size5)
- Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
-
- if (snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS)
- artwork.snd_current_identifier = set_identifier;
- else
- artwork.mus_current_identifier = set_identifier;
-}
-
-#endif /* AUDIO_UNIX_NATIVE */
-
-
-/* ------------------------------------------------------------------------- */
-/* mixer functions */
-/* ------------------------------------------------------------------------- */
-
-void Mixer_InitChannels()