#include "setup.h"
+#define IS_PARENT_PROCESS(pid) ((pid) > 0)
+#define IS_CHILD_PROCESS(pid) ((pid) == 0)
+
struct ListNode
{
char *key;
/* ========================================================================= */
/* THE STUFF BELOW IS ONLY USED BY THE SOUND SERVER CHILD PROCESS */
-static struct AudioFormatInfo afmt =
-{
- TRUE, 0, DEFAULT_AUDIO_SAMPLE_RATE, DEFAULT_AUDIO_FRAGMENT_SIZE
-};
-
-static int playing_sounds = 0;
-static struct SoundControl playlist[MAX_SOUNDS_PLAYING];
-static struct SoundControl emptySoundControl =
-{
- -1,0,0, FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE, 0,0, 0,NULL
-};
-
-#if defined(PLATFORM_UNIX)
-static int stereo_volume[PSND_MAX_LEFT2RIGHT + 1];
-static short premix_first_buffer[SND_BLOCKSIZE];
-#if defined(AUDIO_STREAMING_DSP)
-static short premix_left_buffer[SND_BLOCKSIZE];
-static short premix_right_buffer[SND_BLOCKSIZE];
-static long premix_last_buffer[SND_BLOCKSIZE];
-#endif
-static byte playing_buffer[SND_BLOCKSIZE];
-#endif
+static struct AudioFormatInfo afmt;
+static struct SoundControl mixer[NUM_MIXER_CHANNELS];
+static int mixer_active_channels = 0;
/* forward declaration of internal functions */
-#if defined(AUDIO_STREAMING_DSP)
-static void SoundServer_InsertNewSound(struct SoundControl);
-static void InitAudioDevice_DSP(struct AudioFormatInfo *);
-#elif defined(PLATFORM_HPUX)
-static void InitAudioDevice_HPUX(struct AudioFormatInfo *);
-#elif defined(PLATFORM_UNIX)
+static void InitAudioDevice(struct AudioFormatInfo *);
+static void Mixer_Main(void);
+
+#if defined(PLATFORM_UNIX) && !defined(AUDIO_STREAMING_DSP)
static unsigned char linear_to_ulaw(int);
static int ulaw_to_linear(unsigned char);
-#elif defined(PLATFORM_MSDOS)
-static void SoundServer_InsertNewSound(struct SoundControl);
-static void SoundServer_StopSound(struct SoundControl);
-static void SoundServer_StopAllSounds();
#endif
static void ReloadCustomSounds();
#if defined(PLATFORM_UNIX)
static int OpenAudioDevice(char *audio_device_name)
{
- int audio_fd;
+ int audio_device_fd;
/* check if desired audio device is accessible */
if (access(audio_device_name, W_OK) != 0)
return -1;
/* try to open audio device in non-blocking mode */
- if ((audio_fd = open(audio_device_name, O_WRONLY | O_NONBLOCK)) < 0)
- return audio_fd;
+ if ((audio_device_fd = open(audio_device_name, O_WRONLY | O_NONBLOCK)) < 0)
+ return audio_device_fd;
/* re-open audio device in blocking mode */
- close(audio_fd);
- audio_fd = open(audio_device_name, O_WRONLY);
+ close(audio_device_fd);
+ audio_device_fd = open(audio_device_name, O_WRONLY);
+
+ return audio_device_fd;
+}
- return audio_fd;
+static void CloseAudioDevice(int *audio_device_fd)
+{
+ if (*audio_device_fd == 0)
+ return;
+
+ close(*audio_device_fd);
+ *audio_device_fd = -1;
}
static boolean TestAudioDevices(void)
DEVICENAME_DSP,
DEVICENAME_AUDIO
};
- int audio_fd = -1;
+ int audio_device_fd = -1;
int i;
/* look for available audio devices, starting with preferred ones */
for (i=0; i<sizeof(audio_device_name)/sizeof(char *); i++)
- if ((audio_fd = OpenAudioDevice(audio_device_name[i])) >= 0)
+ if ((audio_device_fd = OpenAudioDevice(audio_device_name[i])) >= 0)
break;
- if (audio_fd < 0)
+ if (audio_device_fd < 0)
{
Error(ERR_WARN, "cannot open audio device -- no sound");
return FALSE;
}
- close(audio_fd);
+ close(audio_device_fd);
audio.device_name = audio_device_name[i];
#if !defined(TARGET_SDL)
static boolean ForkAudioProcess(void)
{
- if (pipe(audio.soundserver_pipe) < 0)
+ if (pipe(audio.mixer_pipe) < 0)
{
Error(ERR_WARN, "cannot create pipe -- no sounds");
return FALSE;
}
- if ((audio.soundserver_pid = fork()) < 0)
+ if ((audio.mixer_pid = fork()) < 0)
{
Error(ERR_WARN, "cannot create sound server process -- no sounds");
return FALSE;
}
- if (audio.soundserver_pid == 0) /* we are child process */
- {
- SoundServer();
-
- /* never reached */
- exit(0);
- }
- else /* we are parent */
- close(audio.soundserver_pipe[0]); /* no reading from pipe needed */
+ if (IS_CHILD_PROCESS(audio.mixer_pid))
+ Mixer_Main(); /* this function never returns */
+ else
+ close(audio.mixer_pipe[0]); /* no reading from pipe needed */
return TRUE;
}
audio.music_available = TRUE;
audio.loops_available = TRUE;
#endif
+
+ audio.num_channels = NUM_MIXER_CHANNELS;
+ audio.music_channel = MUSIC_CHANNEL;
+ audio.first_sound_channel = FIRST_SOUND_CHANNEL;
}
void UnixCloseAudio(void)
if (audio.device_fd)
close(audio.device_fd);
- if (audio.soundserver_pid > 0) /* we are parent process */
- kill(audio.soundserver_pid, SIGTERM);
+ if (IS_PARENT_PROCESS(audio.mixer_pid))
+ kill(audio.mixer_pid, SIGTERM);
+}
+
+static void SendSoundControlToMixerProcess(SoundControl *snd_ctrl)
+{
+ if (IS_CHILD_PROCESS(audio.mixer_pid))
+ 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(audio.mixer_pid))
+ 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_name, 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(ti->basepath) + 1;
+ unsigned long str_size3 = strlen(ti->fullpath) + 1;
+
+ if (IS_CHILD_PROCESS(audio.mixer_pid))
+ return;
+
+ if (leveldir_current == NULL) /* should never happen */
+ Error(ERR_EXIT, "leveldir_current == NULL");
+
+ snd_ctrl.active = FALSE;
+ snd_ctrl.state = type;
+ snd_ctrl.data_len = strlen(set_name) + 1;
+
+ if (write(audio.mixer_pipe[1], &snd_ctrl,
+ sizeof(snd_ctrl)) < 0 ||
+ write(audio.mixer_pipe[1], set_name,
+ snd_ctrl.data_len) < 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], leveldir_current->fullpath,
+ str_size1) < 0 ||
+ write(audio.mixer_pipe[1], ti->basepath,
+ str_size2) < 0 ||
+ write(audio.mixer_pipe[1], ti->fullpath,
+ str_size3) < 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;
+ static char *set_name = NULL;
+
+ if (set_name)
+ free(set_name);
+
+ set_name = 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 (ti->basepath != NULL)
+ free(ti->basepath);
+ if (ti->fullpath != NULL)
+ free(ti->fullpath);
+
+ if (read(audio.mixer_pipe[0], set_name,
+ snd_ctrl->data_len) != snd_ctrl->data_len ||
+ 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))
+ Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
+
+ leveldir_current->fullpath = checked_calloc(str_size1);
+ ti->basepath = checked_calloc(str_size2);
+ ti->fullpath = checked_calloc(str_size3);
+
+ if (read(audio.mixer_pipe[0], leveldir_current->fullpath,
+ str_size1) != str_size1 ||
+ read(audio.mixer_pipe[0], ti->basepath,
+ str_size2) != str_size2 ||
+ read(audio.mixer_pipe[0], ti->fullpath,
+ str_size3) != str_size3)
+ Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
+
+ if (snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS)
+ artwork.sounds_set_current = set_name;
+ else
+ artwork.music_set_current = set_name;
}
#endif /* PLATFORM_UNIX */
-void InitPlaylist(void)
+void Mixer_InitChannels()
{
int i;
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
- playlist[i] = emptySoundControl;
- playing_sounds = 0;
+ for(i=0; i<audio.num_channels; i++)
+ mixer[i].active = FALSE;
+ mixer_active_channels = 0;
}
-void StartSoundserver(void)
+static void Mixer_PlayChannel(int channel)
{
- if (!audio.sound_available)
+ /* start with inactive channel in case something goes wrong */
+ mixer[channel].active = FALSE;
+
+ if (IS_MUSIC_MODULE(mixer[channel]))
return;
-#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
- if (!ForkAudioProcess())
- audio.sound_available = FALSE;
+ mixer[channel].playingpos = 0;
+ mixer[channel].playingtime = 0;
+
+#if defined(TARGET_SDL)
+ Mix_Volume(channel, SOUND_MAX_VOLUME);
+ Mix_PlayChannel(channel, mixer[channel].data_ptr,
+ IS_LOOP(mixer[channel]) ? -1 : 0);
+#elif defined(PLATFORM_MSDOS)
+ mixer[channel].voice = allocate_voice((SAMPLE *)mixer[channel].data_ptr);
+ if (mixer[channel].voice < 0)
+ return;
+
+ if (IS_LOOP(mixer[channel]))
+ voice_set_playmode(mixer[channel].voice, PLAYMODE_LOOP);
+
+ voice_set_volume(mixer[channel].voice, mixer[channel].volume);
+ voice_set_pan(mixer[channel].voice, mixer[channel].stereo);
+ voice_start(mixer[channel].voice);
#endif
+
+ mixer[channel].active = TRUE;
+ mixer_active_channels++;
}
-#if defined(PLATFORM_UNIX)
-void SoundServer(void)
+static void Mixer_PlayMusicChannel()
{
- int i;
+ Mixer_PlayChannel(audio.music_channel);
+
+#if defined(TARGET_SDL)
+ if (IS_MUSIC_MODULE(mixer[audio.music_channel]))
+ {
+ /* Mix_VolumeMusic() must be called _after_ Mix_PlayMusic() --
+ this looks like a bug in the SDL_mixer library */
+ Mix_PlayMusic(mixer[audio.music_channel].data_ptr, -1);
+ Mix_VolumeMusic(SOUND_MAX_VOLUME);
+ }
+#endif
+}
- struct SoundControl snd_ctrl;
- fd_set sound_fdset;
+static void Mixer_StopChannel(int channel)
+{
+ if (!mixer_active_channels || !mixer[channel].active)
+ return;
- close(audio.soundserver_pipe[1]); /* no writing into pipe needed */
+#if defined(TARGET_SDL)
+ Mix_HaltChannel(channel);
+#elif defined(PLATFORM_MSDOS)
+ voice_set_volume(mixer[channel].voice, 0);
+ deallocate_voice(mixer[channel].voice);
+#endif
- InitPlaylist();
+ mixer[channel].active = FALSE;
+ mixer_active_channels--;
+}
- stereo_volume[PSND_MAX_LEFT2RIGHT] = 0;
- for(i=0; i<PSND_MAX_LEFT2RIGHT; i++)
- stereo_volume[i] =
- (int)sqrt((float)(PSND_MAX_LEFT2RIGHT * PSND_MAX_LEFT2RIGHT - i * i));
+static void Mixer_StopMusicChannel()
+{
+ Mixer_StopChannel(audio.music_channel);
-#if defined(PLATFORM_HPUX)
- InitAudioDevice_HPUX(&afmt);
+#if defined(TARGET_SDL)
+ Mix_HaltMusic();
#endif
+}
- FD_ZERO(&sound_fdset);
- FD_SET(audio.soundserver_pipe[0], &sound_fdset);
+static void Mixer_FadeChannel(int channel)
+{
+ mixer[channel].state |= SND_CTRL_FADE;
- while(1) /* wait for sound playing commands from client */
- {
- FD_SET(audio.soundserver_pipe[0], &sound_fdset);
- select(audio.soundserver_pipe[0] + 1, &sound_fdset, NULL, NULL, NULL);
- if (!FD_ISSET(audio.soundserver_pipe[0], &sound_fdset))
- continue;
- if (read(audio.soundserver_pipe[0], &snd_ctrl, sizeof(snd_ctrl))
- != sizeof(snd_ctrl))
- Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
+#if defined(TARGET_SDL)
+ Mix_FadeOutChannel(channel, SOUND_FADING_INTERVAL);
+#elif defined(PLATFORM_MSDOS)
+ if (voice_check(mixer[channel].voice))
+ voice_ramp_volume(mixer[channel].voice, SOUND_FADING_INTERVAL, 0);
+ mixer[channel].state &= ~SND_CTRL_IS_LOOP;
+#endif
+}
- if (snd_ctrl.reload_sounds || snd_ctrl.reload_music)
- {
- char *set_name = checked_malloc(snd_ctrl.data_len);
- TreeInfo **ti_ptr =
- (snd_ctrl.reload_sounds ? &artwork.snd_current : &artwork.mus_current);
- TreeInfo *ti = *ti_ptr;
- unsigned long str_size1, str_size2, str_size3;
-
- 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 (ti->basepath != NULL)
- free(ti->basepath);
- if (ti->fullpath != NULL)
- free(ti->fullpath);
-
- if (read(audio.soundserver_pipe[0], set_name,
- snd_ctrl.data_len) != snd_ctrl.data_len ||
- read(audio.soundserver_pipe[0], leveldir_current,
- sizeof(TreeInfo)) != sizeof(TreeInfo) ||
- read(audio.soundserver_pipe[0], ti,
- sizeof(TreeInfo)) != sizeof(TreeInfo) ||
- read(audio.soundserver_pipe[0], &str_size1,
- sizeof(unsigned long)) != sizeof(unsigned long) ||
- read(audio.soundserver_pipe[0], &str_size2,
- sizeof(unsigned long)) != sizeof(unsigned long) ||
- read(audio.soundserver_pipe[0], &str_size3,
- sizeof(unsigned long)) != sizeof(unsigned long))
- Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
-
- leveldir_current->fullpath = checked_calloc(str_size1);
- ti->basepath = checked_calloc(str_size2);
- ti->fullpath = checked_calloc(str_size3);
-
- if (read(audio.soundserver_pipe[0], leveldir_current->fullpath,
- str_size1) != str_size1 ||
- read(audio.soundserver_pipe[0], ti->basepath,
- str_size2) != str_size2 ||
- read(audio.soundserver_pipe[0], ti->fullpath,
- str_size3) != str_size3)
- Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
-
- InitPlaylist();
-
- close(audio.device_fd);
-
- if (snd_ctrl.reload_sounds)
- {
- artwork.sounds_set_current = set_name;
- ReloadCustomSounds();
- }
- else
- {
- artwork.music_set_current = set_name;
- ReloadCustomMusic();
- }
+static void Mixer_FadeMusicChannel()
+{
+ Mixer_FadeChannel(audio.music_channel);
- free(set_name);
+#if defined(TARGET_SDL)
+ Mix_FadeOutMusic(SOUND_FADING_INTERVAL);
+#endif
+}
- continue;
- }
+static void Mixer_InsertSound(SoundControl snd_ctrl)
+{
+ SoundInfo *snd_info;
+ int i, k;
-#if defined(AUDIO_STREAMING_DSP)
+#if 0
+ printf("NEW SOUND %d HAS ARRIVED [%d]\n", snd_ctrl.nr, num_sounds);
+#endif
- if (snd_ctrl.fade_sound)
+ if (IS_MUSIC(snd_ctrl))
+ snd_ctrl.nr = snd_ctrl.nr % num_music;
+ else if (snd_ctrl.nr >= num_sounds)
+ return;
+
+ snd_info = (IS_MUSIC(snd_ctrl) ? Music[snd_ctrl.nr] : Sound[snd_ctrl.nr]);
+ if (snd_info == NULL)
+ return;
+
+ /* copy sound sample and format information */
+ snd_ctrl.data_ptr = snd_info->data_ptr;
+ snd_ctrl.data_len = snd_info->data_len;
+ snd_ctrl.format = snd_info->format;
+
+ if (IS_MUSIC(snd_ctrl))
+ {
+ mixer[audio.music_channel] = snd_ctrl;
+
+ Mixer_PlayChannel(audio.music_channel);
+
+ return;
+ }
+
+#if 0
+ printf("-> %d\n", mixer_active_channels);
+#endif
+
+ if (mixer_active_channels == audio.num_channels)
+ {
+ for (i=0; i<audio.num_channels; i++)
{
- if (!playing_sounds)
- continue;
+ if (mixer[i].data_ptr == NULL)
+ {
+#if 1
+ printf("THIS SHOULD NEVER HAPPEN! [%d]\n", i);
+#endif
- if (snd_ctrl.music)
- playlist[audio.music_channel].fade_sound = TRUE;
- else
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
- if (snd_ctrl.stop_all_sounds ||
- (i != audio.music_channel && playlist[i].nr == snd_ctrl.nr))
- playlist[i].fade_sound = TRUE;
+ Mixer_StopChannel(i);
+ }
}
- else if (snd_ctrl.stop_all_sounds)
- {
- if (!playing_sounds)
- continue;
+ }
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
- playlist[i] = emptySoundControl;
- playing_sounds = 0;
+ /* if mixer is full, remove oldest sound */
+ if (mixer_active_channels == audio.num_channels)
+ {
+ int longest = 0, longest_nr = audio.first_sound_channel;
- close(audio.device_fd);
- }
- else if (snd_ctrl.stop_sound)
+ for (i=audio.first_sound_channel; i<audio.num_channels; i++)
{
- if (!playing_sounds)
- continue;
+#if !defined(PLATFORM_MSDOS)
+ int actual = 100 * mixer[i].playingpos / mixer[i].data_len;
+#else
+ int actual = mixer[i].playingpos;
+#endif
- if (snd_ctrl.music)
+ if (!IS_LOOP(mixer[i]) && actual > longest)
{
- playlist[audio.music_channel] = emptySoundControl;
- playing_sounds--;
+ longest = actual;
+ longest_nr = i;
}
+ }
+
+ Mixer_StopChannel(longest_nr);
+ }
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
+ /* check if sound is already being played (and how often) */
+ for (k=0, i=audio.first_sound_channel; i<audio.num_channels; i++)
+ if (mixer[i].nr == snd_ctrl.nr)
+ k++;
+
+ /* restart loop sounds only if they are just fading out */
+ if (k >= 1 && IS_LOOP(snd_ctrl))
+ {
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
+ {
+ if (mixer[i].nr == snd_ctrl.nr && IS_FADING(mixer[i]))
{
- if (i != audio.music_channel && playlist[i].nr == snd_ctrl.nr)
- {
- playlist[i] = emptySoundControl;
- playing_sounds--;
- }
+ mixer[i].state &= ~SND_CTRL_FADE;
+ mixer[i].volume = PSND_MAX_VOLUME;
+#if defined(PLATFORM_MSDOS)
+ mixer[i].state |= SND_CTRL_LOOP;
+ voice_stop_volumeramp(mixer[i].voice);
+ voice_ramp_volume(mixer[i].voice, mixer[i].volume, 1000);
+#endif
}
-
- if (!playing_sounds)
- close(audio.device_fd);
}
- if (playing_sounds || snd_ctrl.active)
+ return;
+ }
+
+ /* don't play sound more than n times simultaneously (with n == 2 for now) */
+ if (k >= 2)
+ {
+ int longest = 0, longest_nr = audio.first_sound_channel;
+
+ /* look for oldest equal sound */
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
{
- if (playing_sounds ||
- (audio.device_fd = OpenAudioDevice(audio.device_name)) >= 0)
+ int actual;
+
+ if (!mixer[i].active || mixer[i].nr != snd_ctrl.nr)
+ continue;
+
+#if !defined(PLATFORM_MSDOS)
+ actual = 100 * mixer[i].playingpos / mixer[i].data_len;
+#else
+ actual = mixer[i].playingpos;
+#endif
+ if (actual >= longest)
{
- struct timeval delay = { 0, 0 };
-
- if (!playing_sounds) /* we just opened the audio device */
- InitAudioDevice_DSP(&afmt);
-
- if (snd_ctrl.active) /* new sound has arrived */
- SoundServer_InsertNewSound(snd_ctrl);
-
- while (playing_sounds &&
- select(audio.soundserver_pipe[0] + 1,
- &sound_fdset, NULL, NULL, &delay) < 1)
- {
- int max_sample_size;
- int fragment_size = afmt.fragment_size;
- int sample_bytes = (afmt.format & AUDIO_FORMAT_U8 ? 1 : 2);
- boolean stereo = afmt.stereo;
-
- FD_SET(audio.soundserver_pipe[0], &sound_fdset);
-
- max_sample_size = fragment_size / ((stereo ? 2 : 1) * sample_bytes);
-
- /* first clear the last premixing buffer */
- memset(premix_last_buffer, 0,
- max_sample_size * (stereo ? 2 : 1) * sizeof(long));
-
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
- {
- void *sample_ptr;
- int sample_len;
- int sample_pos;
- int sample_size;
- int j;
-
- if (!playlist[i].active)
- continue;
-
- /* pointer, lenght and actual playing position of sound sample */
- sample_ptr = playlist[i].data_ptr;
- sample_len = playlist[i].data_len;
- sample_pos = playlist[i].playingpos;
- sample_size = MIN(max_sample_size, sample_len - sample_pos);
- playlist[i].playingpos += sample_size;
-
- /* copy original sample to first mixing buffer */
- if (playlist[i].format == AUDIO_FORMAT_U8)
- for (j=0; j<sample_size; j++)
- premix_first_buffer[j] =
- ((short)(((byte *)sample_ptr)[sample_pos + j] ^ 0x80)) << 8;
- else /* AUDIO_FORMAT_S16 */
- for (j=0; j<sample_size; j++)
- premix_first_buffer[j] =
- ((short *)sample_ptr)[sample_pos + j];
-
- /* are we about to restart a looping sound? */
- if (playlist[i].loop && sample_size < max_sample_size)
- {
- while (sample_size < max_sample_size)
- {
- int restarted_sample_size =
- MIN(max_sample_size - sample_size, sample_len);
-
- if (playlist[i].format == AUDIO_FORMAT_U8)
- for (j=0; j<restarted_sample_size; j++)
- premix_first_buffer[sample_size + j] =
- ((short)(((byte *)sample_ptr)[j] ^ 0x80)) << 8;
- else
- for (j=0; j<restarted_sample_size; j++)
- premix_first_buffer[sample_size + j] =
- ((short *)sample_ptr)[j];
-
- playlist[i].playingpos = restarted_sample_size;
- sample_size += restarted_sample_size;
- }
- }
-
- /* decrease volume if sound is fading out */
- if (playlist[i].fade_sound &&
- playlist[i].volume >= SOUND_FADING_VOLUME_THRESHOLD)
- playlist[i].volume -= SOUND_FADING_VOLUME_STEP;
-
- /* adjust volume of actual sound sample */
- if (playlist[i].volume != PSND_MAX_VOLUME)
- for(j=0; j<sample_size; j++)
- premix_first_buffer[j] =
- (playlist[i].volume * (long)premix_first_buffer[j])
- >> PSND_MAX_VOLUME_BITS;
-
- /* fill the last mixing buffer with stereo or mono sound */
- if (stereo)
- {
- int middle_pos = PSND_MAX_LEFT2RIGHT / 2;
- int left_volume = stereo_volume[middle_pos + playlist[i].stereo];
- int right_volume= stereo_volume[middle_pos - playlist[i].stereo];
-
- for(j=0; j<sample_size; j++)
- {
- premix_left_buffer[j] =
- (left_volume * premix_first_buffer[j])
- >> PSND_MAX_LEFT2RIGHT_BITS;
- premix_right_buffer[j] =
- (right_volume * premix_first_buffer[j])
- >> PSND_MAX_LEFT2RIGHT_BITS;
-
- premix_last_buffer[2 * j + 0] += premix_left_buffer[j];
- premix_last_buffer[2 * j + 1] += premix_right_buffer[j];
- }
- }
- else
- {
- for(j=0; j<sample_size; j++)
- premix_last_buffer[j] += premix_first_buffer[j];
- }
-
- /* delete completed sound entries from the playlist */
- if (playlist[i].playingpos >= playlist[i].data_len)
- {
- if (playlist[i].loop)
- playlist[i].playingpos = 0;
- else
- {
- playlist[i] = emptySoundControl;
- playing_sounds--;
- }
- }
- else if (playlist[i].volume <= SOUND_FADING_VOLUME_THRESHOLD)
- {
- playlist[i] = emptySoundControl;
- playing_sounds--;
- }
- }
-
- /* prepare final playing buffer according to system audio format */
- for(i=0; i<max_sample_size * (stereo ? 2 : 1); i++)
- {
- /* cut off at 17 bit value */
- if (premix_last_buffer[i] < -65535)
- premix_last_buffer[i] = -65535;
- else if (premix_last_buffer[i] > 65535)
- premix_last_buffer[i] = 65535;
-
- /* shift to 16 bit value */
- premix_last_buffer[i] >>= 1;
-
- if (afmt.format & AUDIO_FORMAT_U8)
- {
- playing_buffer[i] = (premix_last_buffer[i] >> 8) ^ 0x80;
- }
- else if (afmt.format & AUDIO_FORMAT_LE) /* 16 bit */
- {
- playing_buffer[2 * i + 0] = premix_last_buffer[i] & 0xff;
- playing_buffer[2 * i + 1] = premix_last_buffer[i] >> 8;
- }
- else /* big endian */
- {
- playing_buffer[2 * i + 0] = premix_last_buffer[i] >> 8;
- playing_buffer[2 * i + 1] = premix_last_buffer[i] & 0xff;
- }
- }
-
- /* finally play the sound fragment */
- write(audio.device_fd, playing_buffer, fragment_size);
- }
-
- /* if no sounds playing, free device for other sound programs */
- if (!playing_sounds)
- close(audio.device_fd);
+ longest = actual;
+ longest_nr = i;
}
}
-#else /* !AUDIO_STREAMING_DSP */
+ Mixer_StopChannel(longest_nr);
+ }
- if (snd_ctrl.active && !snd_ctrl.loop)
+ /* add new sound to mixer */
+ for(i=0; i<audio.num_channels; i++)
+ {
+#if 0
+ printf("CHECKING CHANNEL %d FOR SOUND %d ...\n", i, snd_ctrl.nr);
+#endif
+
+ /*
+ if (!mixer[i].active ||
+ (IS_MUSIC(snd_ctrl) && i == audio.music_channel))
+ */
+ if ((i == audio.music_channel && IS_MUSIC(snd_ctrl)) ||
+ (i != audio.music_channel && !mixer[i].active))
{
- struct timeval delay = { 0, 0 };
- byte *sample_ptr;
- long sample_size, max_sample_size = SND_BLOCKSIZE;
- long sample_rate = 8000; /* standard "/dev/audio" sampling rate */
- int wait_percent = 90; /* wait 90% of the real playing time */
- int i;
+#if 0
+ printf("ADDING NEW SOUND %d TO MIXER\n", snd_ctrl.nr);
+#endif
+
+#if 1
+ if (snd_info->data_len == 0)
+ {
+ printf("THIS SHOULD NEVER HAPPEN! [snd_info->data_len == 0]\n");
+ }
+#endif
- if ((audio.device_fd = OpenAudioDevice(audio.device_name)) >= 0)
+#if 1
+ if (IS_MUSIC(snd_ctrl) && i == audio.music_channel && mixer[i].active)
{
- playing_sounds = 1;
-
- while (playing_sounds &&
- select(audio.soundserver_pipe[0] + 1,
- &sound_fdset, NULL, NULL, &delay) < 1)
- {
- FD_SET(audio.soundserver_pipe[0], &sound_fdset);
-
- /* get pointer and size of the actual sound sample */
- sample_ptr = snd_ctrl.data_ptr + snd_ctrl.playingpos;
- sample_size =
- MIN(max_sample_size, snd_ctrl.data_len - snd_ctrl.playingpos);
- snd_ctrl.playingpos += sample_size;
-
- /* fill the first mixing buffer with original sample */
- memcpy(premix_first_buffer,sample_ptr,sample_size);
-
- /* adjust volume of actual sound sample */
- if (snd_ctrl.volume != PSND_MAX_VOLUME)
- for(i=0;i<sample_size;i++)
- premix_first_buffer[i] =
- (snd_ctrl.volume * (int)premix_first_buffer[i])
- >> PSND_MAX_VOLUME_BITS;
-
- for(i=0;i<sample_size;i++)
- playing_buffer[i] =
- linear_to_ulaw(((int)premix_first_buffer[i]) << 8);
-
- if (snd_ctrl.playingpos >= snd_ctrl.data_len)
- playing_sounds = 0;
-
- /* finally play the sound fragment */
- write(audio.device_fd,playing_buffer,sample_size);
-
- delay.tv_sec = 0;
- delay.tv_usec = ((sample_size*10*wait_percent)/(sample_rate))*1000;
- }
- close(audio.device_fd);
+ printf("THIS SHOULD NEVER HAPPEN! [adding music twice]\n");
+
+#if 1
+ Mixer_StopChannel(i);
+#endif
}
+#endif
+
+#if 0
+ snd_ctrl.data_ptr = snd_info->data_ptr;
+ snd_ctrl.data_len = snd_info->data_len;
+ snd_ctrl.format = snd_info->format;
+#endif
+
+ mixer[i] = snd_ctrl;
+
+ Mixer_PlayChannel(i);
+
+ break;
}
-#endif /* !AUDIO_STREAMING_DSP */
}
}
-#endif /* PLATFORM_UNIX */
-#if defined(PLATFORM_MSDOS)
-static void sound_handler(struct SoundControl snd_ctrl)
+static void HandleSoundRequest(SoundControl snd_ctrl)
{
int i;
- if (snd_ctrl.fade_sound)
+#if defined(AUDIO_UNIX_NATIVE)
+ if (IS_PARENT_PROCESS(audio.mixer_pid))
{
- if (!playing_sounds)
- return;
+ SendSoundControlToMixerProcess(&snd_ctrl);
+ return;
+ }
+#elif defined(TARGET_ALLEGRO)
+ for (i=0; i<audio.num_channels; i++)
+ {
+ if (!mixer[i].active || IS_LOOP(mixer[i]))
+ continue;
- for (i=0; i<MAX_SOUNDS_PLAYING; i++)
- if ((snd_ctrl.stop_all_sounds ||
- (i != audio.music_channel && playlist[i].nr == snd_ctrl.nr) ||
- (i == audio.music_channel && snd_ctrl.music)) &&
- !playlist[i].fade_sound)
- {
- playlist[i].fade_sound = TRUE;
- if (voice_check(playlist[i].voice))
- voice_ramp_volume(playlist[i].voice, 1000, 0);
- playlist[i].loop = PSND_NO_LOOP;
- }
+ mixer[i].playingpos = voice_get_position(mixer[i].voice);
+ mixer[i].volume = voice_get_volume(mixer[i].voice);
+
+ if (mixer[i].playingpos == -1 || mixer[i].volume == 0)
+ Mixer_StopChannel(i);
}
- else if (snd_ctrl.stop_all_sounds)
+#endif /* TARGET_ALLEGRO */
+
+ if (IS_RELOADING(snd_ctrl)) /* load new sound or music files */
{
- if (!playing_sounds)
- return;
- SoundServer_StopAllSounds();
+ ReadReloadInfoFromPipe(&snd_ctrl);
+ Mixer_InitChannels();
+ CloseAudioDevice(&audio.device_fd);
+
+ if (snd_ctrl.state & SND_CTRL_RELOAD_SOUNDS)
+ ReloadCustomSounds();
+ else
+ ReloadCustomMusic();
}
- else if (snd_ctrl.stop_sound)
+ else if (IS_FADING(snd_ctrl)) /* fade out existing sound or music */
{
- if (!playing_sounds)
+ if (!mixer_active_channels)
return;
- SoundServer_StopSound(snd_ctrl);
- }
- for (i=0; i<MAX_SOUNDS_PLAYING; i++)
+ if (IS_MUSIC(snd_ctrl))
+ {
+ Mixer_FadeChannel(audio.music_channel);
+ return;
+ }
+
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
+ if (mixer[i].nr == snd_ctrl.nr || ALL_SOUNDS(snd_ctrl))
+ Mixer_FadeChannel(i);
+ }
+ else if (IS_STOPPING(snd_ctrl)) /* stop existing sound or music */
{
- if (!playlist[i].active || playlist[i].loop)
- continue;
+ if (!mixer_active_channels)
+ return;
- playlist[i].playingpos = voice_get_position(playlist[i].voice);
- playlist[i].volume = voice_get_volume(playlist[i].voice);
- if (playlist[i].playingpos == -1 || !playlist[i].volume)
+ if (IS_MUSIC(snd_ctrl))
{
- deallocate_voice(playlist[i].voice);
- playlist[i] = emptySoundControl;
- playing_sounds--;
+ Mixer_StopChannel(audio.music_channel);
+ return;
}
+
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
+ if (mixer[i].nr == snd_ctrl.nr || ALL_SOUNDS(snd_ctrl))
+ Mixer_StopChannel(i);
+
+ if (!mixer_active_channels)
+ CloseAudioDevice(&audio.device_fd);
}
+ else if (snd_ctrl.active) /* add new sound to mixer */
+ {
+ Mixer_InsertSound(snd_ctrl);
+ }
+}
- if (snd_ctrl.active)
- SoundServer_InsertNewSound(snd_ctrl);
+void StartMixer(void)
+{
+ if (!audio.sound_available)
+ return;
+
+#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
+ if (!ForkAudioProcess())
+ audio.sound_available = FALSE;
+#endif
}
-#endif /* PLATFORM_MSDOS */
-#if !defined(PLATFORM_WIN32)
-static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
+#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
+
+static void CopySampleToMixingBuffer(SoundControl *snd_ctrl,
+ int sample_pos, int sample_size,
+ short *buffer_ptr)
{
- int i, k;
+ void *sample_ptr = snd_ctrl->data_ptr;
+ int i;
- if (snd_ctrl.music)
- snd_ctrl.nr = snd_ctrl.nr % num_music;
- else if (snd_ctrl.nr >= num_sounds)
- return;
+ if (snd_ctrl->format == AUDIO_FORMAT_U8)
+ for (i=0; i<sample_size; i++)
+ *buffer_ptr++ =
+ ((short)(((byte *)sample_ptr)[sample_pos + i] ^ 0x80)) << 8;
+ else /* AUDIO_FORMAT_S16 */
+ for (i=0; i<sample_size; i++)
+ *buffer_ptr++ =
+ ((short *)sample_ptr)[sample_pos + i];
+}
- /* if playlist is full, remove oldest sound */
- if (playing_sounds == MAX_SOUNDS_PLAYING)
+#if defined(AUDIO_STREAMING_DSP)
+static void Mixer_Main_DSP()
+{
+ static int stereo_volume[PSND_MAX_LEFT2RIGHT + 1];
+ static boolean stereo_volume_calculated = FALSE;
+ static short premix_first_buffer[SND_BLOCKSIZE];
+ static short premix_left_buffer[SND_BLOCKSIZE];
+ static short premix_right_buffer[SND_BLOCKSIZE];
+ static long premix_last_buffer[SND_BLOCKSIZE];
+ static byte playing_buffer[SND_BLOCKSIZE];
+ boolean stereo;
+ int fragment_size;
+ int sample_bytes;
+ int max_sample_size;
+ int i, j;
+
+ if (!stereo_volume_calculated)
{
- int longest = 0, longest_nr = 0;
+ for(i=0; i<=PSND_MAX_LEFT2RIGHT; i++)
+ stereo_volume[i] =
+ (int)sqrt((float)(PSND_MAX_LEFT2RIGHT * PSND_MAX_LEFT2RIGHT - i * i));
- for (i=0; i<MAX_SOUNDS_PLAYING; i++)
- {
-#if !defined(PLATFORM_MSDOS)
- int actual = 100 * playlist[i].playingpos / playlist[i].data_len;
-#else
- int actual = playlist[i].playingpos;
-#endif
+ stereo_volume_calculated = TRUE;
+ }
- if (i != audio.music_channel && !playlist[i].loop && actual > longest)
- {
- longest = actual;
- longest_nr = i;
- }
- }
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[longest_nr].voice, 0);
- deallocate_voice(playlist[longest_nr].voice);
-#endif
- playlist[longest_nr] = emptySoundControl;
- playing_sounds--;
+ if (!mixer_active_channels)
+ return;
+
+ if (audio.device_fd < 0)
+ {
+ if ((audio.device_fd = OpenAudioDevice(audio.device_name)) < 0)
+ return;
+
+ InitAudioDevice(&afmt);
}
- /* check if sound is already being played (and how often) */
- for (k=0,i=0; i<MAX_SOUNDS_PLAYING; i++)
- if (i != audio.music_channel && playlist[i].nr == snd_ctrl.nr)
- k++;
+ stereo = afmt.stereo;
+ fragment_size = afmt.fragment_size;
+ sample_bytes = (afmt.format & AUDIO_FORMAT_U8 ? 1 : 2);
+ max_sample_size = fragment_size / ((stereo ? 2 : 1) * sample_bytes);
- /* restart loop sounds only if they are just fading out */
- if (k >= 1 && snd_ctrl.loop)
+ /* first clear the last premixing buffer */
+ memset(premix_last_buffer, 0,
+ max_sample_size * (stereo ? 2 : 1) * sizeof(long));
+
+ for(i=0; i<audio.num_channels; i++)
{
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
+ void *sample_ptr;
+ int sample_len;
+ int sample_pos;
+ int sample_size;
+
+ if (!mixer[i].active)
+ continue;
+
+ /* pointer, lenght and actual playing position of sound sample */
+ sample_ptr = mixer[i].data_ptr;
+ sample_len = mixer[i].data_len;
+ sample_pos = mixer[i].playingpos;
+ sample_size = MIN(max_sample_size, sample_len - sample_pos);
+ mixer[i].playingpos += sample_size;
+
+ /* copy original sample to first mixing buffer */
+ CopySampleToMixingBuffer(&mixer[i], sample_pos, sample_size,
+ premix_first_buffer);
+
+ /* are we about to restart a looping sound? */
+ if (IS_LOOP(mixer[i]) && sample_size < max_sample_size)
{
- if (i != audio.music_channel && playlist[i].nr == snd_ctrl.nr &&
- playlist[i].fade_sound)
+ while (sample_size < max_sample_size)
{
- playlist[i].fade_sound = FALSE;
- playlist[i].volume = PSND_MAX_VOLUME;
-#if defined(PLATFORM_MSDOS)
- playlist[i].loop = PSND_LOOP;
- voice_stop_volumeramp(playlist[i].voice);
- voice_ramp_volume(playlist[i].voice, playlist[i].volume, 1000);
-#endif
+ int restarted_sample_size =
+ MIN(max_sample_size - sample_size, sample_len);
+
+ if (mixer[i].format == AUDIO_FORMAT_U8)
+ for (j=0; j<restarted_sample_size; j++)
+ premix_first_buffer[sample_size + j] =
+ ((short)(((byte *)sample_ptr)[j] ^ 0x80)) << 8;
+ else
+ for (j=0; j<restarted_sample_size; j++)
+ premix_first_buffer[sample_size + j] =
+ ((short *)sample_ptr)[j];
+
+ mixer[i].playingpos = restarted_sample_size;
+ sample_size += restarted_sample_size;
}
}
- return;
- }
+ /* decrease volume if sound is fading out */
+ if (IS_FADING(mixer[i]) &&
+ mixer[i].volume >= SOUND_FADING_VOLUME_THRESHOLD)
+ mixer[i].volume -= SOUND_FADING_VOLUME_STEP;
- /* don't play sound more than n times simultaneously (with n == 2 for now) */
- if (k >= 2)
- {
- int longest = 0, longest_nr = 0;
+ /* adjust volume of actual sound sample */
+ if (mixer[i].volume != PSND_MAX_VOLUME)
+ for(j=0; j<sample_size; j++)
+ premix_first_buffer[j] =
+ (mixer[i].volume * (long)premix_first_buffer[j])
+ >> PSND_MAX_VOLUME_BITS;
- /* look for oldest equal sound */
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
+ /* fill the last mixing buffer with stereo or mono sound */
+ if (stereo)
{
- int actual;
-
- if (!playlist[i].active ||
- i == audio.music_channel ||
- playlist[i].nr != snd_ctrl.nr)
- continue;
+ int middle_pos = PSND_MAX_LEFT2RIGHT / 2;
+ int left_volume = stereo_volume[middle_pos + mixer[i].stereo];
+ int right_volume= stereo_volume[middle_pos - mixer[i].stereo];
-#if !defined(PLATFORM_MSDOS)
- actual = 100 * playlist[i].playingpos / playlist[i].data_len;
-#else
- actual = playlist[i].playingpos;
-#endif
- if (actual >= longest)
+ for(j=0; j<sample_size; j++)
{
- longest = actual;
- longest_nr = i;
+ premix_left_buffer[j] =
+ (left_volume * premix_first_buffer[j])
+ >> PSND_MAX_LEFT2RIGHT_BITS;
+ premix_right_buffer[j] =
+ (right_volume * premix_first_buffer[j])
+ >> PSND_MAX_LEFT2RIGHT_BITS;
+
+ premix_last_buffer[2 * j + 0] += premix_left_buffer[j];
+ premix_last_buffer[2 * j + 1] += premix_right_buffer[j];
}
}
+ else
+ {
+ for(j=0; j<sample_size; j++)
+ premix_last_buffer[j] += premix_first_buffer[j];
+ }
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[longest_nr].voice, 0);
- deallocate_voice(playlist[longest_nr].voice);
-#endif
- playlist[longest_nr] = emptySoundControl;
- playing_sounds--;
+ /* delete completed sound entries from the mixer */
+ if (mixer[i].playingpos >= mixer[i].data_len)
+ {
+ if (IS_LOOP(mixer[i]))
+ mixer[i].playingpos = 0;
+ else
+ Mixer_StopChannel(i);
+ }
+ else if (mixer[i].volume <= SOUND_FADING_VOLUME_THRESHOLD)
+ Mixer_StopChannel(i);
}
- /* add new sound to playlist */
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
+ /* prepare final playing buffer according to system audio format */
+ for(i=0; i<max_sample_size * (stereo ? 2 : 1); i++)
{
- if (!playlist[i].active ||
- (snd_ctrl.music && i == audio.music_channel))
- {
- SoundInfo *snd_info =
- (snd_ctrl.music ? Music[snd_ctrl.nr] : Sound[snd_ctrl.nr]);
+ /* cut off at 17 bit value */
+ if (premix_last_buffer[i] < -65535)
+ premix_last_buffer[i] = -65535;
+ else if (premix_last_buffer[i] > 65535)
+ premix_last_buffer[i] = 65535;
- snd_ctrl.data_ptr = snd_info->data_ptr;
- snd_ctrl.data_len = snd_info->data_len;
- snd_ctrl.format = snd_info->format;
-
- playlist[i] = snd_ctrl;
- playing_sounds++;
+ /* shift to 16 bit value */
+ premix_last_buffer[i] >>= 1;
-#if defined(PLATFORM_MSDOS)
- playlist[i].voice = allocate_voice((SAMPLE *)playlist[i].data_ptr);
-
- if (snd_ctrl.loop)
- voice_set_playmode(playlist[i].voice, PLAYMODE_LOOP);
-
- voice_set_volume(playlist[i].voice, snd_ctrl.volume);
- voice_set_pan(playlist[i].voice, snd_ctrl.stereo);
- voice_start(playlist[i].voice);
-#endif
- break;
+ if (afmt.format & AUDIO_FORMAT_U8)
+ {
+ playing_buffer[i] = (premix_last_buffer[i] >> 8) ^ 0x80;
+ }
+ else if (afmt.format & AUDIO_FORMAT_LE) /* 16 bit */
+ {
+ playing_buffer[2 * i + 0] = premix_last_buffer[i] & 0xff;
+ playing_buffer[2 * i + 1] = premix_last_buffer[i] >> 8;
+ }
+ else /* big endian */
+ {
+ playing_buffer[2 * i + 0] = premix_last_buffer[i] >> 8;
+ playing_buffer[2 * i + 1] = premix_last_buffer[i] & 0xff;
}
}
+
+ /* finally play the sound fragment */
+ write(audio.device_fd, playing_buffer, fragment_size);
+
+ if (!mixer_active_channels)
+ CloseAudioDevice(&audio.device_fd);
}
-#endif /* !PLATFORM_WIN32 */
-/*
-void SoundServer_FadeSound(int nr)
+#else /* !AUDIO_STREAMING_DSP */
+
+static int Mixer_Main_SimpleAudio(SoundControl snd_ctrl)
{
- int i;
+ static short premix_first_buffer[SND_BLOCKSIZE];
+ static byte playing_buffer[SND_BLOCKSIZE];
+ int max_sample_size = SND_BLOCKSIZE;
+ void *sample_ptr;
+ int sample_len;
+ int sample_pos;
+ int sample_size;
+ int i, j;
+
+ i = 1;
+
+ /* pointer, lenght and actual playing position of sound sample */
+ sample_ptr = mixer[i].data_ptr;
+ sample_len = mixer[i].data_len;
+ sample_pos = mixer[i].playingpos;
+ sample_size = MIN(max_sample_size, sample_len - sample_pos);
+ mixer[i].playingpos += sample_size;
+
+ /* copy original sample to first mixing buffer */
+ CopySampleToMixingBuffer(&mixer[i], sample_pos, sample_size,
+ premix_first_buffer);
+
+ /* adjust volume of actual sound sample */
+ if (mixer[i].volume != PSND_MAX_VOLUME)
+ for(j=0; j<sample_size; j++)
+ premix_first_buffer[j] =
+ (mixer[i].volume * (long)premix_first_buffer[j])
+ >> PSND_MAX_VOLUME_BITS;
+
+ /* might be needed for u-law /dev/audio */
+#if 0
+ for(j=0; j<sample_size; j++)
+ playing_buffer[j] =
+ linear_to_ulaw(premix_first_buffer[j]);
+#endif
- if (!playing_sounds)
- return;
+ /* delete completed sound entries from the mixer */
+ if (mixer[i].playingpos >= mixer[i].data_len)
+ Mixer_StopChannel(i);
+
+ for(i=0; i<sample_size; i++)
+ playing_buffer[i] = (premix_first_buffer[i] >> 8) ^ 0x80;
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- if (snd_ctrl.stop_all_sounds || playlist[i].nr == snd_ctrl.nr)
- playlist[i].fade_sound = TRUE;
+ /* finally play the sound fragment */
+ write(audio.device_fd, playing_buffer, sample_size);
+
+ return sample_size;
}
-*/
+#endif /* !AUDIO_STREAMING_DSP */
-#if !defined(PLATFORM_WIN32)
-#if defined(PLATFORM_MSDOS)
-static void SoundServer_StopSound(struct SoundControl snd_ctrl)
+void Mixer_Main()
{
- int nr = snd_ctrl.nr;
- int i;
+ SoundControl snd_ctrl;
+ fd_set mixer_fdset;
- if (!playing_sounds)
- return;
+ close(audio.mixer_pipe[1]); /* no writing into pipe needed */
+
+ Mixer_InitChannels();
+
+#if defined(PLATFORM_HPUX)
+ InitAudioDevice(&afmt);
+#endif
- for(i=0; i<MAX_SOUNDS_PLAYING; i++)
+ FD_ZERO(&mixer_fdset);
+ FD_SET(audio.mixer_pipe[0], &mixer_fdset);
+
+ while(1) /* wait for sound playing commands from client */
{
- if ((i == audio.music_channel && snd_ctrl.music) ||
- (i != audio.music_channel && playlist[i].nr == nr))
+ struct timeval delay = { 0, 0 };
+
+ FD_SET(audio.mixer_pipe[0], &mixer_fdset);
+ select(audio.mixer_pipe[0] + 1, &mixer_fdset, NULL, NULL, NULL);
+ if (!FD_ISSET(audio.mixer_pipe[0], &mixer_fdset))
+ continue;
+
+ ReadSoundControlFromMainProcess(&snd_ctrl);
+
+ HandleSoundRequest(snd_ctrl);
+
+#if defined(AUDIO_STREAMING_DSP)
+
+ while (mixer_active_channels &&
+ select(audio.mixer_pipe[0] + 1,
+ &mixer_fdset, NULL, NULL, &delay) < 1)
{
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[i].voice, 0);
- deallocate_voice(playlist[i].voice);
-#endif
- playlist[i] = emptySoundControl;
- playing_sounds--;
+ FD_SET(audio.mixer_pipe[0], &mixer_fdset);
+
+ Mixer_Main_DSP();
}
- }
-#if !defined(PLATFORM_MSDOS)
- if (!playing_sounds)
- close(audio.device_fd);
-#endif
-}
+#else /* !AUDIO_STREAMING_DSP */
-static void SoundServer_StopAllSounds()
-{
- int i;
+ if (!snd_ctrl.active || IS_LOOP(snd_ctrl) ||
+ (audio.device_fd = OpenAudioDevice(audio.device_name)) < 0)
+ continue;
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- {
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[i].voice, 0);
- deallocate_voice(playlist[i].voice);
-#endif
- playlist[i]=emptySoundControl;
- }
- playing_sounds = 0;
+ InitAudioDevice(&afmt);
-#if !defined(PLATFORM_MSDOS)
- close(audio.device_fd);
-#endif
+ delay.tv_sec = 0;
+ delay.tv_usec = 0;
+
+ while (mixer_active_channels &&
+ select(audio.mixer_pipe[0] + 1,
+ &mixer_fdset, NULL, NULL, &delay) < 1)
+ {
+ int wait_percent = 90; /* wait 90% of the real playing time */
+ int sample_size;
+
+ FD_SET(audio.mixer_pipe[0], &mixer_fdset);
+
+ sample_size = Mixer_Main_SimpleAudio(snd_ctrl);
+
+ delay.tv_sec = 0;
+ delay.tv_usec =
+ ((sample_size * 10 * wait_percent) / afmt.sample_rate) * 1000;
+ }
+
+ CloseAudioDevice(&audio.device_fd);
+
+ Mixer_InitChannels(); /* remove all sounds from mixer */
+
+#endif /* !AUDIO_STREAMING_DSP */
+ }
}
-#endif /* PLATFORM_MSDOS */
-#endif /* !PLATFORM_WIN32 */
+#endif /* PLATFORM_UNIX */
/* ------------------------------------------------------------------------- */
#endif /* PLATFORM_HPUX */
#if defined(PLATFORM_UNIX)
-static void InitAudioDevice_DSP(struct AudioFormatInfo *afmt)
+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
}
#endif /* PLATFORM_UNIX */
if (!audio.sound_available)
return NULL;
-#if 1
+#if 0
printf("loading WAV file '%s'\n", filename);
#endif
return snd_info;
}
-static void LoadCustomSound(SoundInfo **snd_info, char *basename)
+static void deleteSoundEntry(SoundInfo **snd_info)
{
- char *filename = getCustomSoundFilename(basename);
-
- if (filename == NULL) /* (should never happen) */
- {
- Error(ERR_WARN, "cannot find sound file '%s'", basename);
- return;
- }
-
if (*snd_info)
{
- char *filename_old = (*snd_info)->source_filename;
-
- if (strcmp(filename, filename_old) == 0)
- {
- /* The old and new sound are the same (have the same filename and path).
- This usually means that this sound does not exist in this sound set
- and a fallback to the existing sound is done. */
+ char *filename = (*snd_info)->source_filename;
-#if 1
- printf("[sound '%s' already exists]\n", filename);
+#if 0
+ printf("[decrementing reference counter of sound '%s']\n", filename);
#endif
- return;
- }
-
if (--(*snd_info)->num_references <= 0)
{
-#if 1
- printf("[deleting sound '%s']\n", filename_old);
+#if 0
+ printf("[deleting sound '%s']\n", filename);
#endif
/*
FreeSound(*snd_info);
*/
- deleteNodeFromList(&SoundFileList, filename_old, FreeSound);
+ deleteNodeFromList(&SoundFileList, filename, FreeSound);
}
+
+ *snd_info = NULL;
+ }
+}
+
+static void replaceSoundEntry(SoundInfo **snd_info, char *filename)
+{
+ ListNode *node;
+
+ /* check if the old and the new sound file are the same */
+ if (*snd_info && strcmp((*snd_info)->source_filename, filename) == 0)
+ {
+ /* The old and new sound are the same (have the same filename and path).
+ This usually means that this sound does not exist in this sound set
+ and a fallback to the existing sound is done. */
+
+#if 0
+ printf("[sound '%s' already exists (same list entry)]\n", filename);
+#endif
+
+ return;
+ }
+
+ /* delete existing sound file entry */
+ deleteSoundEntry(snd_info);
+
+ /* check if the new sound file already exists in the list of sounds */
+ if ((node = getNodeFromKey(SoundFileList, filename)) != NULL)
+ {
+#if 0
+ printf("[sound '%s' already exists (other list entry)]\n", filename);
+#endif
+
+ *snd_info = (SoundInfo *)node->content;
+ (*snd_info)->num_references++;
+ }
+ else if ((*snd_info = Load_WAV(filename)) != NULL) /* load new sound */
+ {
+ (*snd_info)->num_references = 1;
+ addNodeToList(&SoundFileList, (*snd_info)->source_filename, *snd_info);
+ }
+}
+
+static void LoadCustomSound(SoundInfo **snd_info, char *basename)
+{
+ char *filename = getCustomSoundFilename(basename);
+
+ if (strcmp(basename, SND_FILE_UNDEFINED) == 0)
+ {
+ deleteSoundEntry(snd_info);
+ return;
}
- *snd_info = Load_WAV(filename);
- (*snd_info)->num_references = 1;
+ if (filename == NULL)
+ {
+ Error(ERR_WARN, "cannot find sound file '%s'", basename);
+ return;
+ }
- addNodeToList(&SoundFileList, (*snd_info)->source_filename, *snd_info);
+ replaceSoundEntry(snd_info, filename);
}
void InitSoundList(struct SoundEffectInfo *sounds_list, int num_list_entries)
if (Sound == NULL || list_pos >= num_sounds)
return;
+#if 0
printf("loading sound '%s' ... [%d]\n",
basename, getNumNodes(SoundFileList));
+#endif
LoadCustomSound(&Sound[list_pos], basename);
+#if 0
printf("loading sound '%s' done [%d]\n",
basename, getNumNodes(SoundFileList));
+#endif
}
static MusicInfo *Load_MOD(char *filename)
void PlaySound(int nr)
{
- PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, PSND_NO_LOOP);
+ PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, SND_CTRL_PLAY_SOUND);
}
void PlaySoundStereo(int nr, int stereo)
{
- PlaySoundExt(nr, PSND_MAX_VOLUME, stereo, PSND_NO_LOOP);
+ PlaySoundExt(nr, PSND_MAX_VOLUME, stereo, SND_CTRL_PLAY_SOUND);
}
void PlaySoundLoop(int nr)
{
- PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, PSND_LOOP);
+ PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, SND_CTRL_PLAY_LOOP);
}
void PlaySoundMusic(int nr)
{
- PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, PSND_MUSIC);
+ PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, SND_CTRL_PLAY_MUSIC);
}
-void PlaySoundExt(int nr, int volume, int stereo, boolean loop_type)
+void PlaySoundExt(int nr, int volume, int stereo, int state)
{
- struct SoundControl snd_ctrl = emptySoundControl;
+ SoundControl snd_ctrl;
if (!audio.sound_available ||
!audio.sound_enabled ||
else if (stereo > PSND_MAX_RIGHT)
stereo = PSND_MAX_RIGHT;
- snd_ctrl.nr = nr;
- snd_ctrl.volume = volume;
- snd_ctrl.stereo = stereo;
- snd_ctrl.loop = (loop_type != PSND_NO_LOOP);
- snd_ctrl.music = (loop_type == PSND_MUSIC);
- snd_ctrl.active = TRUE;
-
-#if 0
- /* now only used internally in sound server child process */
- snd_ctrl.data_ptr = Sound[nr].data_ptr;
- snd_ctrl.data_len = Sound[nr].data_len;
-#endif
-
-#if defined(TARGET_SDL)
- Mix_Volume(-1, SOUND_MAX_VOLUME);
- Mix_PlayChannel(-1, Sound[nr]->data_ptr, (loop_type ? -1 : 0));
-#elif defined(PLATFORM_UNIX)
- if (audio.soundserver_pid == 0) /* we are child process */
- return;
+ snd_ctrl.active = TRUE;
+ snd_ctrl.nr = nr;
+ snd_ctrl.volume = volume;
+ snd_ctrl.stereo = stereo;
+ snd_ctrl.state = state;
- if (write(audio.soundserver_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0)
- {
- Error(ERR_WARN, "cannot pipe to child process -- no sounds");
- audio.sound_available = audio.sound_enabled = FALSE;
- return;
- }
-#elif defined(PLATFORM_MSDOS)
- sound_handler(snd_ctrl);
-#endif
+ HandleSoundRequest(snd_ctrl);
}
void FadeMusic(void)
Mix_FadeOutMusic(SOUND_FADING_INTERVAL);
Mix_FadeOutChannel(audio.music_channel, SOUND_FADING_INTERVAL);
#else
- StopSoundExt(-1, SSND_FADE_MUSIC);
+ StopSoundExt(-1, SND_CTRL_FADE_MUSIC);
#endif
}
void FadeSound(int nr)
{
- StopSoundExt(nr, SSND_FADE_SOUND);
+ StopSoundExt(nr, SND_CTRL_FADE_SOUND);
}
void FadeSounds()
{
FadeMusic();
- StopSoundExt(-1, SSND_FADE_ALL);
+ StopSoundExt(-1, SND_CTRL_FADE_ALL);
}
void StopMusic(void)
Mix_HaltMusic();
Mix_HaltChannel(audio.music_channel);
#else
- StopSoundExt(-1, SSND_STOP_MUSIC);
+ StopSoundExt(-1, SND_CTRL_STOP_MUSIC);
#endif
}
void StopSound(int nr)
{
- StopSoundExt(nr, SSND_STOP_SOUND);
+ StopSoundExt(nr, SND_CTRL_STOP_SOUND);
}
void StopSounds()
{
- StopSoundExt(-1, SSND_STOP_ALL);
+ StopMusic();
+ StopSoundExt(-1, SND_CTRL_STOP_ALL);
}
-void StopSoundExt(int nr, int method)
+void StopSoundExt(int nr, int state)
{
- struct SoundControl snd_ctrl = emptySoundControl;
+ SoundControl snd_ctrl;
if (!audio.sound_available)
return;
- if (method & SSND_FADING)
- snd_ctrl.fade_sound = TRUE;
-
- if (method & SSND_ALL)
- snd_ctrl.stop_all_sounds = TRUE;
- else
- {
- snd_ctrl.stop_sound = TRUE;
- snd_ctrl.nr = nr;
- }
-
- if (method & SSND_MUSIC)
- snd_ctrl.music = TRUE;
-
-#if defined(TARGET_SDL)
-
- if (method & SSND_FADING)
- {
- int i;
-
- for (i=0; i<audio.channels; i++)
- if (i != audio.music_channel || snd_ctrl.music)
- Mix_FadeOutChannel(i, SOUND_FADING_INTERVAL);
- if (snd_ctrl.music)
- Mix_FadeOutMusic(SOUND_FADING_INTERVAL);
- }
- else
- {
- int i;
-
- for (i=0; i<audio.channels; i++)
- if (i != audio.music_channel || snd_ctrl.music)
- Mix_HaltChannel(i);
- if (snd_ctrl.music)
- Mix_HaltMusic();
- }
-
-#elif !defined(PLATFORM_MSDOS)
-
- if (audio.soundserver_pid == 0) /* we are child process */
- return;
+ snd_ctrl.active = FALSE;
+ snd_ctrl.nr = nr;
+ snd_ctrl.state = state;
- if (write(audio.soundserver_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0)
- {
- Error(ERR_WARN, "cannot pipe to child process -- no sounds");
- audio.sound_available = audio.sound_enabled = FALSE;
- return;
- }
-#else
- sound_handler(snd_ctrl);
-#endif
+ HandleSoundRequest(snd_ctrl);
}
ListNode *newListNode()
if (node_first == NULL || *node_first == NULL)
return;
+#if 0
printf("[CHECKING LIST KEY '%s' == '%s']\n",
(*node_first)->key, key);
+#endif
if (strcmp((*node_first)->key, key) == 0)
{
+#if 0
printf("[DELETING LIST ENTRY]\n");
+#endif
free((*node_first)->key);
if (destructor_function)
while (node)
{
- printf("['%s']\n", node->key);
+ printf("['%s' (%d)]\n", node->key,
+ ((SoundInfo *)node->content)->num_references);
node = node->next;
}
{
int i;
-#if 1
+#if 0
printf("DEBUG: reloading sounds '%s' ...\n", artwork.sounds_set_current);
#endif
LoadSoundsInfo();
+#if 0
+ printf("DEBUG: reloading %d sounds ...\n", num_sounds);
+#endif
+
for(i=0; i<num_sounds; i++)
{
if (sound_effect[i].filename)
/*
printf("list size == %d\n", getNumNodes(SoundFileList));
*/
+
+#if 0
dumpList(SoundFileList);
+#endif
}
static void ReloadCustomMusic()
{
-#if 1
+#if 0
printf("DEBUG: reloading music '%s' ...\n", artwork.music_set_current);
#endif
LoadCustomMusic();
}
-static void InitReloadSoundsOrMusic(char *set_name, int type)
+void InitReloadSounds(char *set_name)
{
-#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
- struct SoundControl snd_ctrl = emptySoundControl;
- TreeInfo *ti =
- (type == SND_RELOAD_SOUNDS ? artwork.snd_current : artwork.mus_current);
- unsigned long str_size1 = strlen(leveldir_current->fullpath) + 1;
- unsigned long str_size2 = strlen(ti->basepath) + 1;
- unsigned long str_size3 = strlen(ti->fullpath) + 1;
-#endif
-
if (!audio.sound_available)
return;
#if defined(TARGET_SDL) || defined(TARGET_ALLEGRO)
- if (type == SND_RELOAD_SOUNDS)
- audio.func_reload_sounds();
- else
- audio.func_reload_music();
+ ReloadCustomSounds();
#elif defined(PLATFORM_UNIX)
- if (audio.soundserver_pid == 0) /* we are child process */
- return;
-
- if (leveldir_current == NULL) /* should never happen */
- Error(ERR_EXIT, "leveldir_current == NULL");
-
- snd_ctrl.reload_sounds = (type == SND_RELOAD_SOUNDS);
- snd_ctrl.reload_music = (type == SND_RELOAD_MUSIC);
- snd_ctrl.data_len = strlen(set_name) + 1;
-
- if (write(audio.soundserver_pipe[1], &snd_ctrl,
- sizeof(snd_ctrl)) < 0 ||
- write(audio.soundserver_pipe[1], set_name,
- snd_ctrl.data_len) < 0 ||
- write(audio.soundserver_pipe[1], leveldir_current,
- sizeof(TreeInfo)) < 0 ||
- write(audio.soundserver_pipe[1], ti,
- sizeof(TreeInfo)) < 0 ||
- write(audio.soundserver_pipe[1], &str_size1,
- sizeof(unsigned long)) < 0 ||
- write(audio.soundserver_pipe[1], &str_size2,
- sizeof(unsigned long)) < 0 ||
- write(audio.soundserver_pipe[1], &str_size3,
- sizeof(unsigned long)) < 0 ||
- write(audio.soundserver_pipe[1], leveldir_current->fullpath,
- str_size1) < 0 ||
- write(audio.soundserver_pipe[1], ti->basepath,
- str_size2) < 0 ||
- write(audio.soundserver_pipe[1], ti->fullpath,
- str_size3) < 0)
- {
- Error(ERR_WARN, "cannot pipe to child process -- no sounds");
- audio.sound_available = audio.sound_enabled = FALSE;
- return;
- }
+ WriteReloadInfoToPipe(set_name, SND_CTRL_RELOAD_SOUNDS);
#endif
}
-void InitReloadSounds(char *set_name)
-{
- InitReloadSoundsOrMusic(set_name, SND_RELOAD_SOUNDS);
-}
-
void InitReloadMusic(char *set_name)
{
- InitReloadSoundsOrMusic(set_name, SND_RELOAD_MUSIC);
+ if (!audio.music_available)
+ return;
+
+#if defined(TARGET_SDL) || defined(TARGET_ALLEGRO)
+ ReloadCustomMusic();
+#elif defined(PLATFORM_UNIX)
+ WriteReloadInfoToPipe(set_name, SND_CTRL_RELOAD_MUSIC);
+#endif
}
void FreeSound(void *ptr)
if (Sound == NULL)
return;
+ printf("%s: FREEING SOUNDS ...\n",
+ IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT");
+
for(i=0; i<num_sounds; i++)
+ deleteSoundEntry(&Sound[i]);
+ /*
FreeSound(Sound[i]);
+ */
+
+ printf("%s: FREEING SOUNDS -- DONE\n",
+ IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT");
free(Sound);