#include "system.h"
#include "sound.h"
#include "misc.h"
+#include "setup.h"
+#define IS_PARENT_PROCESS(pid) ((pid) > 0)
+#define IS_CHILD_PROCESS(pid) ((pid) == 0)
+
+struct ListNode
+{
+ char *key;
+ void *content;
+ struct ListNode *next;
+};
+typedef struct ListNode ListNode;
+
+static ListNode *newListNode(void);
+static void addNodeToList(ListNode **, char *, void *);
+static void deleteNodeFromList(ListNode **, char *, void (*function)(void *));
+static ListNode *getNodeFromKey(ListNode *, char *);
+static int getNumNodes(ListNode *);
+
+
+static struct SoundEffectInfo *sound_effect;
+static ListNode *SoundFileList = NULL;
+static SoundInfo **Sound = NULL;
+static MusicInfo **Music = NULL;
static int num_sounds = 0, num_music = 0;
-static struct SampleInfo *Sound = NULL;
-#if defined(TARGET_SDL)
-static int num_mods = 0;
-static struct SampleInfo *Mod = NULL;
-#endif
/* ========================================================================= */
/* THE STUFF BELOW IS ONLY USED BY THE SOUND SERVER CHILD PROCESS */
-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, 0,0L,0L,NULL
-};
+static struct SoundControl mixer[NUM_MIXER_CHANNELS];
+static int mixer_active_channels = 0;
-#if defined(PLATFORM_UNIX)
-static int stereo_volume[PSND_MAX_LEFT2RIGHT+1];
-static char premix_first_buffer[SND_BLOCKSIZE];
-#if defined(AUDIO_STREAMING_DSP)
-static char premix_left_buffer[SND_BLOCKSIZE];
-static char premix_right_buffer[SND_BLOCKSIZE];
-static int premix_last_buffer[SND_BLOCKSIZE];
-#endif
-static unsigned char playing_buffer[SND_BLOCKSIZE];
-#endif
+#if defined(AUDIO_UNIX_NATIVE)
+static struct AudioFormatInfo afmt;
-/* forward declaration of internal functions */
-#if defined(AUDIO_STREAMING_DSP)
-static void SoundServer_InsertNewSound(struct SoundControl);
-#elif defined(PLATFORM_UNIX)
+static void Mixer_Main(void);
+#if !defined(AUDIO_STREAMING_DSP)
static unsigned char linear_to_ulaw(int);
static int ulaw_to_linear(unsigned char);
#endif
-
-#if defined(AUDIO_LINUX_IOCTL)
-static boolean InitAudioDevice_Linux();
-#elif defined(PLATFORM_NETBSD)
-static boolean InitAudioDevice_NetBSD();
-#elif defined(PLATFORM_HPUX)
-static boolean InitAudioDevice_HPUX();
-#elif defined(PLATFORM_MSDOS)
-static void SoundServer_InsertNewSound(struct SoundControl);
-static void SoundServer_StopSound(int);
-static void SoundServer_StopAllSounds();
#endif
-#if defined(PLATFORM_UNIX)
+static void ReloadCustomSounds();
+static void ReloadCustomMusic();
+static void FreeSound(void *);
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for native (non-SDL) Unix audio/mixer support */
+/* ------------------------------------------------------------------------- */
+
+#if defined(AUDIO_UNIX_NATIVE)
+
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_fd;
+ return audio_device_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];
return TRUE;
}
-#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;
}
-#endif
void UnixOpenAudio(void)
{
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);
}
-#endif /* PLATFORM_UNIX */
-void InitPlaylist(void)
+
+/* ------------------------------------------------------------------------- */
+/* functions for platform specific audio device initialization */
+/* ------------------------------------------------------------------------- */
+
+#if defined(AUDIO_LINUX_IOCTL)
+static void InitAudioDevice_Linux(struct AudioFormatInfo *afmt)
{
+ /* "ioctl()" expects pointer to 'int' value for stereo flag
+ (boolean is defined as 'char', which will not work here) */
+ unsigned int fragment_spec = 0;
+ int fragment_size_query;
+ int stereo = TRUE;
+ struct
+ {
+ int format_ioctl;
+ int format_result;
+ }
+ formats[] =
+ {
+ /* supported audio format in preferred order */
+ { AFMT_S16_LE, AUDIO_FORMAT_S16 | AUDIO_FORMAT_LE },
+ { AFMT_S16_BE, AUDIO_FORMAT_S16 | AUDIO_FORMAT_BE },
+ { AFMT_U8, AUDIO_FORMAT_U8 },
+ { -1, -1 }
+ };
int i;
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- playlist[i] = emptySoundControl;
- playing_sounds = 0;
-}
+ /* determine logarithm (log2) of the fragment size */
+ while ((1 << fragment_spec) < afmt->fragment_size)
+ fragment_spec++;
-void StartSoundserver(void)
-{
- if (!audio.sound_available)
- return;
+ /* use two fragments (play one fragment, prepare the other);
+ one fragment would result in interrupted audio output, more
+ than two fragments would raise audio output latency to much */
+ fragment_spec |= 0x00020000;
-#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
- if (!ForkAudioProcess())
- audio.sound_available = FALSE;
-#endif
-}
+ /* Example for fragment specification:
+ - 2 buffers / 512 bytes (giving 1/16 second resolution for 8 kHz)
+ - (with stereo the effective buffer size will shrink to 256)
+ => fragment_size = 0x00020009 */
-#if defined(PLATFORM_UNIX)
-void SoundServer(void)
-{
- int i;
+ if (ioctl(audio.device_fd, SNDCTL_DSP_SETFRAGMENT, &fragment_spec) < 0)
+ Error(ERR_EXIT_SOUND_SERVER,
+ "cannot set fragment size of /dev/dsp -- no sounds");
- struct SoundControl snd_ctrl;
- fd_set sound_fdset;
+ i = 0;
+ afmt->format = 0;
+ while (formats[i].format_result != -1)
+ {
+ unsigned int audio_format = formats[i].format_ioctl;
+ if (ioctl(audio.device_fd, SNDCTL_DSP_SETFMT, &audio_format) == 0)
+ {
+ afmt->format = formats[i].format_result;
+ break;
+ }
+ }
- close(audio.soundserver_pipe[1]); /* no writing into pipe needed */
+ if (afmt->format == 0) /* no supported audio format found */
+ Error(ERR_EXIT_SOUND_SERVER,
+ "cannot set audio format of /dev/dsp -- no sounds");
- InitPlaylist();
+ /* try if we can use stereo sound */
+ afmt->stereo = TRUE;
+ if (ioctl(audio.device_fd, SNDCTL_DSP_STEREO, &stereo) < 0)
+ afmt->stereo = FALSE;
- 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));
+ if (ioctl(audio.device_fd, SNDCTL_DSP_SPEED, &afmt->sample_rate) < 0)
+ Error(ERR_EXIT_SOUND_SERVER,
+ "cannot set sample rate of /dev/dsp -- no sounds");
-#if defined(PLATFORM_HPUX)
- InitAudioDevice_HPUX();
-#endif
+ /* get the real fragmentation size; this should return 512 */
+ if (ioctl(audio.device_fd, SNDCTL_DSP_GETBLKSIZE, &fragment_size_query) < 0)
+ Error(ERR_EXIT_SOUND_SERVER,
+ "cannot get fragment size of /dev/dsp -- no sounds");
+ if (fragment_size_query != afmt->fragment_size)
+ Error(ERR_EXIT_SOUND_SERVER,
+ "cannot set fragment size of /dev/dsp -- no sounds");
+}
+#endif /* AUDIO_LINUX_IOCTL */
- FD_ZERO(&sound_fdset);
- FD_SET(audio.soundserver_pipe[0], &sound_fdset);
+#if defined(PLATFORM_NETBSD)
+static void InitAudioDevice_NetBSD(struct AudioFormatInfo *afmt)
+{
+ audio_info_t a_info;
+ boolean stereo = TRUE;
- 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");
+ AUDIO_INITINFO(&a_info);
+ a_info.play.encoding = AUDIO_ENCODING_LINEAR8;
+ a_info.play.precision = 8;
+ a_info.play.channels = 2;
+ a_info.play.sample_rate = sample_rate;
+ a_info.blocksize = fragment_size;
- if (snd_ctrl.reload_sounds || snd_ctrl.reload_music)
- {
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- playlist[i] = emptySoundControl;
- playing_sounds = 0;
+ afmt->format = AUDIO_FORMAT_U8;
+ afmt->stereo = TRUE;
- close(audio.device_fd);
+ if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0)
+ {
+ /* try to disable stereo */
+ a_info.play.channels = 1;
- if (snd_ctrl.reload_sounds)
- ReloadSounds();
- else
- ReloadMusic();
+ afmt->stereo = FALSE;
- continue;
- }
+ if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0)
+ Error(ERR_EXIT_SOUND_SERVER,
+ "cannot set sample rate of /dev/audio -- no sounds");
+ }
+}
+#endif /* PLATFORM_NETBSD */
-#if defined(AUDIO_STREAMING_DSP)
+#if defined(PLATFORM_HPUX)
+static void InitAudioDevice_HPUX(struct AudioFormatInfo *afmt)
+{
+ struct audio_describe ainfo;
+ int audio_ctl;
- if (snd_ctrl.fade_sound)
- {
- if (!playing_sounds)
- continue;
+ audio_ctl = open("/dev/audioCtl", O_WRONLY | O_NDELAY);
+ if (audio_ctl == -1)
+ Error(ERR_EXIT_SOUND_SERVER, "cannot open /dev/audioCtl -- no sounds");
- 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;
- }
- else if (snd_ctrl.stop_all_sounds)
- {
- if (!playing_sounds)
- continue;
+ if (ioctl(audio_ctl, AUDIO_DESCRIBE, &ainfo) == -1)
+ Error(ERR_EXIT_SOUND_SERVER, "no audio info -- no sounds");
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- playlist[i] = emptySoundControl;
- playing_sounds = 0;
+ if (ioctl(audio_ctl, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_ULAW) == -1)
+ Error(ERR_EXIT_SOUND_SERVER, "ulaw audio not available -- no sounds");
- close(audio.device_fd);
- }
- else if (snd_ctrl.stop_sound)
- {
- if (!playing_sounds)
- continue;
+ ioctl(audio_ctl, AUDIO_SET_CHANNELS, 1);
+ ioctl(audio_ctl, AUDIO_SET_SAMPLE_RATE, 8000);
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- if (playlist[i].nr == snd_ctrl.nr)
- {
- playlist[i] = emptySoundControl;
- playing_sounds--;
- }
+ afmt->format = AUDIO_FORMAT_U8;
+ afmt->stereo = FALSE;
+ afmt->sample_rate = 8000;
- if (!playing_sounds)
- close(audio.device_fd);
- }
+ 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 (playing_sounds || snd_ctrl.active)
- {
- struct timeval delay = { 0, 0 };
- byte *sample_ptr;
- long sample_size;
- static long max_sample_size = 0;
- static long fragment_size = DEFAULT_AUDIO_FRAGMENT_SIZE;
- int sample_rate = DEFAULT_AUDIO_SAMPLE_RATE;
- static boolean stereo = TRUE;
-
- if (playing_sounds ||
- (audio.device_fd = OpenAudioDevice(audio.device_name)) >= 0)
- {
- if (!playing_sounds) /* we just opened the audio device */
- {
#if defined(AUDIO_LINUX_IOCTL)
- stereo = InitAudioDevice_Linux(fragment_size, sample_rate);
+ InitAudioDevice_Linux(afmt);
#elif defined(PLATFORM_NETBSD)
- stereo = InitAudioDevice_NetBSD(fragment_size, sample_rate);
+ InitAudioDevice_NetBSD(afmt);
+#elif defined(PLATFORM_HPUX)
+ InitAudioDevice_HPUX(afmt);
+#else
+ /* generic /dev/audio stuff might be placed here */
#endif
- max_sample_size = fragment_size / (stereo ? 2 : 1);
- }
-
- 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)
- {
- FD_SET(audio.soundserver_pipe[0], &sound_fdset);
-
- /* first clear the last premixing buffer */
- memset(premix_last_buffer, 0, fragment_size * sizeof(int));
-
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- {
- int j;
-
- if (!playlist[i].active)
- continue;
-
- /* get pointer and size of the actual sound sample */
- sample_ptr = playlist[i].data_ptr+playlist[i].playingpos;
- sample_size =
- MIN(max_sample_size,playlist[i].data_len-playlist[i].playingpos);
- playlist[i].playingpos += sample_size;
-
- /* fill the first mixing buffer with original sample */
- memcpy(premix_first_buffer,sample_ptr,sample_size);
-
- /* are we about to restart a looping sound? */
- if (playlist[i].loop && sample_size<max_sample_size)
- {
- playlist[i].playingpos = max_sample_size-sample_size;
- memcpy(premix_first_buffer+sample_size,
- playlist[i].data_ptr,max_sample_size-sample_size);
- sample_size = max_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 * (int)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 * (int)premix_first_buffer[j])
- >> PSND_MAX_LEFT2RIGHT_BITS;
- premix_right_buffer[j] =
- (right_volume * (int)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] += (int)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--;
- }
- }
-
- /* put last mixing buffer to final playing buffer */
- for(i=0; i<fragment_size; i++)
- {
- if (premix_last_buffer[i]<-255)
- playing_buffer[i] = 0;
- else if (premix_last_buffer[i]>255)
- playing_buffer[i] = 255;
- else
- playing_buffer[i] = (premix_last_buffer[i]>>1)^0x80;
- }
-
- /* 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);
- }
- }
+}
-#else /* !AUDIO_STREAMING_DSP */
- if (snd_ctrl.active && !snd_ctrl.loop)
- {
- 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;
+/* ------------------------------------------------------------------------- */
+/* functions for communication between main process and sound mixer process */
+/* ------------------------------------------------------------------------- */
- if ((audio.device_fd = OpenAudioDevice(audio.device_name)) >= 0)
- {
- 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);
- }
- }
-#endif /* !AUDIO_STREAMING_DSP */
+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;
}
}
-#endif /* PLATFORM_UNIX */
-#if defined(PLATFORM_MSDOS)
-static void sound_handler(struct SoundControl snd_ctrl)
+static void ReadSoundControlFromMainProcess(SoundControl *snd_ctrl)
{
- int i;
+ if (IS_PARENT_PROCESS(audio.mixer_pid))
+ return;
- if (snd_ctrl.fade_sound)
- {
- if (!playing_sounds)
- return;
+ if (read(audio.mixer_pipe[0], snd_ctrl, sizeof(SoundControl))
+ != sizeof(SoundControl))
+ Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds");
+}
- for (i=0; i<MAX_SOUNDS_PLAYING; i++)
- if ((snd_ctrl.stop_all_sounds || playlist[i].nr == snd_ctrl.nr) &&
- !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;
- }
- }
- else if (snd_ctrl.stop_all_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)
{
- if (!playing_sounds)
- return;
- SoundServer_StopAllSounds();
+ Error(ERR_WARN, "cannot pipe to child process -- no sounds");
+ audio.sound_available = audio.sound_enabled = FALSE;
+ return;
}
- else if (snd_ctrl.stop_sound)
+}
+
+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 /* AUDIO_UNIX_NATIVE */
+
+
+/* ------------------------------------------------------------------------- */
+/* mixer functions */
+/* ------------------------------------------------------------------------- */
+
+void Mixer_InitChannels()
+{
+ int i;
+
+ for(i=0; i<audio.num_channels; i++)
+ mixer[i].active = FALSE;
+ mixer_active_channels = 0;
+}
+
+static void Mixer_PlayChannel(int channel)
+{
+ /* start with inactive channel in case something goes wrong */
+ mixer[channel].active = FALSE;
+
+ if (mixer[channel].type != MUS_TYPE_WAV)
+ return;
+
+ mixer[channel].playing_pos = 0;
+ mixer[channel].playing_starttime = Counter();
+
+#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_position);
+ voice_start(mixer[channel].voice);
+#endif
+
+ mixer[channel].active = TRUE;
+ mixer_active_channels++;
+}
+
+static void Mixer_PlayMusicChannel()
+{
+ Mixer_PlayChannel(audio.music_channel);
+
+#if defined(TARGET_SDL)
+ if (mixer[audio.music_channel].type != MUS_TYPE_WAV)
{
- if (!playing_sounds)
- return;
- SoundServer_StopSound(snd_ctrl.nr);
+ /* 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
+}
- for (i=0; i<MAX_SOUNDS_PLAYING; i++)
- {
- if (!playlist[i].active || playlist[i].loop)
- continue;
+static void Mixer_StopChannel(int channel)
+{
+#if 0
+#if defined(TARGET_SDL)
+ printf("----------> %d [%d]\n", Mix_Playing(channel), Mix_Playing(0));
+#endif
+#endif
- 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)
- {
- deallocate_voice(playlist[i].voice);
- playlist[i] = emptySoundControl;
- playing_sounds--;
- }
- }
+ if (!mixer[channel].active)
+ return;
+
+#if defined(TARGET_SDL)
+ Mix_HaltChannel(channel);
+#elif defined(PLATFORM_MSDOS)
+ voice_set_volume(mixer[channel].voice, 0);
+ deallocate_voice(mixer[channel].voice);
+#endif
- if (snd_ctrl.active)
- SoundServer_InsertNewSound(snd_ctrl);
+ mixer[channel].active = FALSE;
+ mixer_active_channels--;
}
-#endif /* PLATFORM_MSDOS */
-#if !defined(PLATFORM_WIN32)
-static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
+static void Mixer_StopMusicChannel()
{
- int i, k;
+ Mixer_StopChannel(audio.music_channel);
- /* if playlist is full, remove oldest sound */
- if (playing_sounds==MAX_SOUNDS_PLAYING)
- {
- int longest=0, longest_nr=0;
+#if defined(TARGET_SDL)
+ Mix_HaltMusic();
+#endif
+}
- 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;
+static void Mixer_FadeChannel(int channel)
+{
+ if (!mixer[channel].active)
+ return;
+
+ mixer[channel].state |= SND_CTRL_FADE;
+
+#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);
#endif
+}
- if (!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);
+static void Mixer_FadeMusicChannel()
+{
+ Mixer_FadeChannel(audio.music_channel);
+
+#if defined(TARGET_SDL)
+ Mix_FadeOutMusic(SOUND_FADING_INTERVAL);
+#endif
+}
+
+static void Mixer_UnFadeChannel(int channel)
+{
+ if (!mixer[channel].active || !IS_FADING(mixer[channel]))
+ return;
+
+ mixer[channel].state &= ~SND_CTRL_FADE;
+ mixer[channel].volume = PSND_MAX_VOLUME;
+
+#if defined(TARGET_SDL)
+ Mix_ExpireChannel(channel, -1);
+ Mix_Volume(channel, SOUND_MAX_VOLUME);
+#elif defined(TARGET_ALLEGRO)
+ voice_stop_volumeramp(mixer[channel].voice);
+ voice_ramp_volume(mixer[channel].voice, SOUND_FADING_INTERVAL,
+ mixer[channel].volume);
#endif
- playlist[longest_nr] = emptySoundControl;
- playing_sounds--;
+}
+
+static void Mixer_InsertSound(SoundControl snd_ctrl)
+{
+ SoundInfo *snd_info;
+ int i, k;
+
+#if 0
+ printf("NEW SOUND %d HAS ARRIVED [%d]\n", snd_ctrl.nr, num_sounds);
+#endif
+
+#if 0
+ printf("%d ACTIVE CHANNELS\n", mixer_active_channels);
+#endif
+
+ 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.type = snd_info->type;
+ snd_ctrl.format = snd_info->format;
+ snd_ctrl.data_ptr = snd_info->data_ptr;
+ snd_ctrl.data_len = snd_info->data_len;
+
+ /* play music samples on a dedicated music channel */
+ if (IS_MUSIC(snd_ctrl))
+ {
+ mixer[audio.music_channel] = snd_ctrl;
+ Mixer_PlayMusicChannel();
+
+ return;
}
/* check if sound is already being played (and how often) */
- for(k=0,i=0;i<MAX_SOUNDS_PLAYING;i++)
- {
- if (playlist[i].nr == snd_ctrl.nr)
+ 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 && snd_ctrl.loop)
+ if (k >= 1 && IS_LOOP(snd_ctrl))
{
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- {
- if (playlist[i].nr == snd_ctrl.nr && playlist[i].fade_sound)
- {
- 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
- }
- }
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
+ if (mixer[i].nr == snd_ctrl.nr && IS_FADING(mixer[i]))
+ Mixer_UnFadeChannel(i);
+
return;
}
/* don't play sound more than n times simultaneously (with n == 2 for now) */
- if (k>=2)
+ if (k >= 2)
{
- int longest=0, longest_nr=0;
+ unsigned long playing_current = Counter();
+ int longest = 0, longest_nr = audio.first_sound_channel;
/* look for oldest equal sound */
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
{
+ int playing_time = playing_current - mixer[i].playing_starttime;
int actual;
- if (!playlist[i].active || playlist[i].nr != snd_ctrl.nr)
+ if (!mixer[i].active || mixer[i].nr != snd_ctrl.nr)
continue;
-#if !defined(PLATFORM_MSDOS)
- actual = 100 * playlist[i].playingpos / playlist[i].data_len;
+#if 1
+ actual = 1000 * playing_time / mixer[i].data_len;
#else
- actual = playlist[i].playingpos;
+ actual = 100 * mixer[i].playing_pos / mixer[i].data_len;
#endif
- if (actual>=longest)
+
+ if (actual >= longest)
{
- longest=actual;
- longest_nr=i;
+ longest = actual;
+ longest_nr = i;
}
}
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[longest_nr].voice, 0);
- deallocate_voice(playlist[longest_nr].voice);
+ Mixer_StopChannel(longest_nr);
+ }
+
+ /* If all (non-music) channels are active, stop the channel that has
+ played its sound sample most completely (in percent of the sample
+ length). As we cannot currently get the actual playing position
+ of the channel's sound sample when compiling with the SDL mixer
+ library, we use the current playing time (in milliseconds) instead. */
+
+ if (mixer_active_channels ==
+ audio.num_channels - (mixer[audio.music_channel].active ? 0 : 1))
+ {
+ unsigned long playing_current = Counter();
+ int longest = 0, longest_nr = audio.first_sound_channel;
+
+ for (i=audio.first_sound_channel; i<audio.num_channels; i++)
+ {
+#if 1
+ int playing_time = playing_current - mixer[i].playing_starttime;
+ int actual = 1000 * playing_time / mixer[i].data_len;
+#else
+ int actual = 100 * mixer[i].playing_pos / mixer[i].data_len;
#endif
- playlist[longest_nr] = emptySoundControl;
- playing_sounds--;
+
+ if (!IS_LOOP(mixer[i]) && actual > longest)
+ {
+ longest = actual;
+ longest_nr = i;
+ }
+ }
+
+ Mixer_StopChannel(longest_nr);
}
- /* neuen Sound in Liste packen */
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
+ /* add new sound to mixer */
+ for(i=0; i<audio.num_channels; i++)
{
- if (!playlist[i].active)
+#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))
{
- playlist[i] = snd_ctrl;
- playing_sounds++;
-
-#if defined(PLATFORM_MSDOS)
- playlist[i].voice = allocate_voice(Sound[snd_ctrl.nr].sample_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);
+#if 0
+ printf("ADDING NEW SOUND %d TO MIXER\n", snd_ctrl.nr);
+#endif
+
+#if 1
+#if defined(AUDIO_UNIX_NATIVE)
+ if (snd_info->data_len == 0)
+ {
+ printf("THIS SHOULD NEVER HAPPEN! [snd_info->data_len == 0]\n");
+ }
+#endif
+#endif
+
+#if 1
+ if (IS_MUSIC(snd_ctrl) && i == audio.music_channel && mixer[i].active)
+ {
+ printf("THIS SHOULD NEVER HAPPEN! [adding music twice]\n");
+
+#if 1
+ Mixer_StopChannel(i);
+#endif
+ }
#endif
+
+ mixer[i] = snd_ctrl;
+ Mixer_PlayChannel(i);
+
break;
}
}
}
-#endif /* !PLATFORM_WIN32 */
-/*
-void SoundServer_FadeSound(int nr)
+static void HandleSoundRequest(SoundControl snd_ctrl)
{
int i;
- if (!playing_sounds)
+#if defined(AUDIO_UNIX_NATIVE)
+ if (IS_PARENT_PROCESS(audio.mixer_pid))
+ {
+ SendSoundControlToMixerProcess(&snd_ctrl);
return;
+ }
+#elif defined(TARGET_SDL)
+ for (i=0; i<audio.num_channels; i++)
+ if (!Mix_Playing(i))
+ Mixer_StopChannel(i);
+#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 || playlist[i].nr == snd_ctrl.nr)
- playlist[i].fade_sound = TRUE;
-}
-*/
+ mixer[i].playing_pos = voice_get_position(mixer[i].voice);
+ mixer[i].volume = voice_get_volume(mixer[i].voice);
-#if !defined(PLATFORM_WIN32)
-#if defined(PLATFORM_MSDOS)
-static void SoundServer_StopSound(int nr)
-{
- int i;
+ /* sound sample has completed playing or was completely faded out */
+ if (mixer[i].playing_pos == -1 || mixer[i].volume == 0)
+ Mixer_StopChannel(i);
+ }
+#endif /* TARGET_ALLEGRO */
- if (!playing_sounds)
- return;
+ if (IS_RELOADING(snd_ctrl)) /* load new sound or music files */
+ {
+ Mixer_StopMusicChannel();
+ for(i=audio.first_sound_channel; i<audio.num_channels; i++)
+ Mixer_StopChannel(i);
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- if (playlist[i].nr == nr)
- {
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[i].voice, 0);
- deallocate_voice(playlist[i].voice);
+#if defined(AUDIO_UNIX_NATIVE)
+ CloseAudioDevice(&audio.device_fd);
+ ReadReloadInfoFromPipe(&snd_ctrl);
#endif
- playlist[i] = emptySoundControl;
- playing_sounds--;
+
+ if (snd_ctrl.state & SND_CTRL_RELOAD_SOUNDS)
+ ReloadCustomSounds();
+ else
+ ReloadCustomMusic();
+ }
+ else if (IS_FADING(snd_ctrl)) /* fade out existing sound or music */
+ {
+ if (IS_MUSIC(snd_ctrl))
+ {
+ Mixer_FadeMusicChannel();
+ return;
}
-#if !defined(PLATFORM_MSDOS)
- if (!playing_sounds)
- close(audio.device_fd);
+ 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 (IS_MUSIC(snd_ctrl))
+ {
+ Mixer_StopMusicChannel();
+ 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 defined(AUDIO_UNIX_NATIVE)
+ if (!mixer_active_channels)
+ CloseAudioDevice(&audio.device_fd);
#endif
+ }
+ else if (snd_ctrl.active) /* add new sound to mixer */
+ {
+ Mixer_InsertSound(snd_ctrl);
+ }
}
-static void SoundServer_StopAllSounds()
+void StartMixer(void)
{
- int i;
-
- for(i=0;i<MAX_SOUNDS_PLAYING;i++)
- {
-#if defined(PLATFORM_MSDOS)
- voice_set_volume(playlist[i].voice, 0);
- deallocate_voice(playlist[i].voice);
+#if 0
+ SDL_version compile_version;
+ const SDL_version *link_version;
+ MIX_VERSION(&compile_version);
+ printf("compiled with SDL_mixer version: %d.%d.%d\n",
+ compile_version.major,
+ compile_version.minor,
+ compile_version.patch);
+ link_version = Mix_Linked_Version();
+ printf("running with SDL_mixer version: %d.%d.%d\n",
+ link_version->major,
+ link_version->minor,
+ link_version->patch);
#endif
- playlist[i]=emptySoundControl;
- }
- playing_sounds = 0;
-#if !defined(PLATFORM_MSDOS)
- close(audio.device_fd);
+ if (!audio.sound_available)
+ return;
+
+#if defined(AUDIO_UNIX_NATIVE)
+ if (!ForkAudioProcess())
+ audio.sound_available = FALSE;
#endif
}
-#endif /* PLATFORM_MSDOS */
-#endif /* !PLATFORM_WIN32 */
+#if defined(AUDIO_UNIX_NATIVE)
-/* ------------------------------------------------------------------------- */
-/* platform dependant audio initialization code */
-/* ------------------------------------------------------------------------- */
+static void CopySampleToMixingBuffer(SoundControl *snd_ctrl,
+ int sample_pos, int sample_size,
+ short *buffer_ptr)
+{
+ void *sample_ptr = snd_ctrl->data_ptr;
+ int i;
-#if defined(AUDIO_LINUX_IOCTL)
-static boolean InitAudioDevice_Linux(long fragment_size, int sample_rate)
+ 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 defined(AUDIO_STREAMING_DSP)
+static void Mixer_Main_DSP()
{
- /* "ioctl()" expects pointer to 'int' value for stereo flag
- (boolean is defined as 'char', which will not work here) */
- int stereo = TRUE;
- unsigned long fragment_spec = 0;
+ 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)
+ {
+ for(i=0; i<=PSND_MAX_LEFT2RIGHT; i++)
+ stereo_volume[i] =
+ (int)sqrt((float)(PSND_MAX_LEFT2RIGHT * PSND_MAX_LEFT2RIGHT - i * i));
- /* determine logarithm (log2) of the fragment size */
- for (fragment_spec=0; (1 << fragment_spec) < fragment_size;
- fragment_spec++);
+ stereo_volume_calculated = TRUE;
+ }
- /* use two fragments (play one fragment, prepare the other);
- one fragment would result in interrupted audio output, more
- than two fragments would raise audio output latency to much */
- fragment_spec |= 0x00020000;
+ if (!mixer_active_channels)
+ return;
- /* Example for fragment specification:
- - 2 buffers / 512 bytes (giving 1/16 second resolution for 8 kHz)
- - (with stereo the effective buffer size will shrink to 256)
- => fragment_size = 0x00020009 */
+ if (audio.device_fd < 0)
+ {
+ if ((audio.device_fd = OpenAudioDevice(audio.device_name)) < 0)
+ return;
- if (ioctl(audio.device_fd, SNDCTL_DSP_SETFRAGMENT, &fragment_spec) < 0)
- Error(ERR_EXIT_SOUND_SERVER,
- "cannot set fragment size of /dev/dsp -- no sounds");
+ InitAudioDevice(&afmt);
+ }
- /* try if we can use stereo sound */
- if (ioctl(audio.device_fd, SNDCTL_DSP_STEREO, &stereo) < 0)
+ 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);
+
+ /* 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++)
{
-#ifdef DEBUG
- static boolean reported = FALSE;
+ 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].playing_pos;
+ sample_size = MIN(max_sample_size, sample_len - sample_pos);
+ mixer[i].playing_pos += sample_size;
- if (!reported)
+ /* 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)
{
- Error(ERR_RETURN, "cannot get stereo sound on /dev/dsp");
- reported = TRUE;
+ while (sample_size < max_sample_size)
+ {
+ 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].playing_pos = restarted_sample_size;
+ sample_size += restarted_sample_size;
+ }
}
-#endif
- stereo = FALSE;
+
+ /* 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;
+
+ /* 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;
+
+ /* 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 + mixer[i].stereo_position];
+ int right_volume= stereo_volume[middle_pos - mixer[i].stereo_position];
+
+ 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 mixer */
+ if (mixer[i].playing_pos >= mixer[i].data_len)
+ {
+ if (IS_LOOP(mixer[i]))
+ mixer[i].playing_pos = 0;
+ else
+ Mixer_StopChannel(i);
+ }
+ else if (mixer[i].volume <= SOUND_FADING_VOLUME_THRESHOLD)
+ Mixer_StopChannel(i);
}
- if (ioctl(audio.device_fd, SNDCTL_DSP_SPEED, &sample_rate) < 0)
- Error(ERR_EXIT_SOUND_SERVER,
- "cannot set sample rate of /dev/dsp -- no 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;
- /* get the real fragmentation size; this should return 512 */
- if (ioctl(audio.device_fd, SNDCTL_DSP_GETBLKSIZE, &fragment_size) < 0)
- Error(ERR_EXIT_SOUND_SERVER,
- "cannot get fragment size of /dev/dsp -- no sounds");
+ /* 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;
+ }
+ }
- return (boolean)stereo;
+ /* finally play the sound fragment */
+ write(audio.device_fd, playing_buffer, fragment_size);
+
+ if (!mixer_active_channels)
+ CloseAudioDevice(&audio.device_fd);
}
-#endif /* AUDIO_LINUX_IOCTL */
-#if defined(PLATFORM_NETBSD)
-static boolean InitAudioDevice_NetBSD(long fragment_size, int sample_rate)
+#else /* !AUDIO_STREAMING_DSP */
+
+static int Mixer_Main_SimpleAudio(SoundControl snd_ctrl)
{
- audio_info_t a_info;
- boolean stereo = TRUE;
+ 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].playing_pos;
+ sample_size = MIN(max_sample_size, sample_len - sample_pos);
+ mixer[i].playing_pos += 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
- AUDIO_INITINFO(&a_info);
- a_info.play.encoding = AUDIO_ENCODING_LINEAR8;
- a_info.play.precision = 8;
- a_info.play.channels = 2;
- a_info.play.sample_rate = sample_rate;
- a_info.blocksize = fragment_size;
+ /* delete completed sound entries from the mixer */
+ if (mixer[i].playing_pos >= mixer[i].data_len)
+ Mixer_StopChannel(i);
- if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0)
- {
- /* try to disable stereo */
- a_info.play.channels = 1;
- stereo = FALSE;
+ for(i=0; i<sample_size; i++)
+ playing_buffer[i] = (premix_first_buffer[i] >> 8) ^ 0x80;
- if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0)
- Error(ERR_EXIT_SOUND_SERVER,
- "cannot set sample rate of /dev/audio -- no sounds");
- }
+ /* finally play the sound fragment */
+ write(audio.device_fd, playing_buffer, sample_size);
- return stereo;
+ return sample_size;
}
-#endif /* PLATFORM_NETBSD */
+#endif /* !AUDIO_STREAMING_DSP */
-#if defined(PLATFORM_HPUX)
-static boolean InitAudioDevice_HPUX()
+void Mixer_Main()
{
- struct audio_describe ainfo;
- int audio_ctl;
+ SoundControl snd_ctrl;
+ fd_set mixer_fdset;
- audio_ctl = open("/dev/audioCtl", O_WRONLY | O_NDELAY);
- if (audio_ctl == -1)
- Error(ERR_EXIT_SOUND_SERVER, "cannot open /dev/audioCtl -- no sounds");
+ close(audio.mixer_pipe[1]); /* no writing into pipe needed */
- if (ioctl(audio_ctl, AUDIO_DESCRIBE, &ainfo) == -1)
- Error(ERR_EXIT_SOUND_SERVER, "no audio info -- no sounds");
+ Mixer_InitChannels();
- if (ioctl(audio_ctl, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_ULAW) == -1)
- Error(ERR_EXIT_SOUND_SERVER, "ulaw audio not available -- no sounds");
+#if defined(PLATFORM_HPUX)
+ InitAudioDevice(&afmt);
+#endif
- ioctl(audio_ctl, AUDIO_SET_CHANNELS, 1);
- ioctl(audio_ctl, AUDIO_SET_SAMPLE_RATE, 8000);
+ FD_ZERO(&mixer_fdset);
+ FD_SET(audio.mixer_pipe[0], &mixer_fdset);
- close(audio_ctl);
+ while(1) /* wait for sound playing commands from client */
+ {
+ 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)
+ {
+ FD_SET(audio.mixer_pipe[0], &mixer_fdset);
+
+ Mixer_Main_DSP();
+ }
+
+#else /* !AUDIO_STREAMING_DSP */
+
+ if (!snd_ctrl.active || IS_LOOP(snd_ctrl) ||
+ (audio.device_fd = OpenAudioDevice(audio.device_name)) < 0)
+ continue;
- return TRUE; /* to provide common interface for InitAudioDevice_...() */
+ InitAudioDevice(&afmt);
+
+ 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_HPUX */
+#endif /* AUDIO_UNIX_NATIVE */
+
-#if defined(PLATFORM_UNIX) && !defined(AUDIO_STREAMING_DSP)
+#if defined(AUDIO_UNIX_NATIVE) && !defined(AUDIO_STREAMING_DSP)
/* these two are stolen from "sox"... :) */
return(sample);
}
-#endif /* PLATFORM_UNIX && !AUDIO_STREAMING_DSP */
+#endif /* AUDIO_UNIX_NATIVE && !AUDIO_STREAMING_DSP */
/* THE STUFF ABOVE IS ONLY USED BY THE SOUND SERVER CHILD PROCESS */
/* ========================================================================= */
/* THE STUFF BELOW IS ONLY USED BY THE MAIN PROCESS */
-void ReloadSounds()
-{
- printf("reloading sounds ...\n");
-}
-
-void ReloadMusic()
-{
- printf("reloading music ...\n");
-}
-
#define CHUNK_ID_LEN 4 /* IFF style chunk id length */
-#define WAV_HEADER_SIZE 20 /* size of WAV file header */
+#define WAV_HEADER_SIZE 16 /* size of WAV file header */
-static boolean LoadSoundExt(char *sound_name, boolean is_music)
+static SoundInfo *Load_WAV(char *filename)
{
- struct SampleInfo *snd_info;
- char *filename;
+ SoundInfo *snd_info;
#if !defined(TARGET_SDL) && !defined(PLATFORM_MSDOS)
byte sound_header_buffer[WAV_HEADER_SIZE];
- char chunk[CHUNK_ID_LEN + 1];
- int chunk_size, dummy;
+ char chunk_name[CHUNK_ID_LEN + 1];
+ int chunk_size;
FILE *file;
int i;
#endif
if (!audio.sound_available)
- return FALSE;
-
- num_sounds++;
- Sound = checked_realloc(Sound, num_sounds * sizeof(struct SampleInfo));
+ return NULL;
- snd_info = &Sound[num_sounds - 1];
- snd_info->name = sound_name;
+#if 0
+ printf("loading WAV file '%s'\n", filename);
+#endif
- filename = getPath2((is_music ? options.music_directory :
- options.sounds_directory), snd_info->name);
+ snd_info = checked_calloc(sizeof(SoundInfo));
#if defined(TARGET_SDL)
- if ((snd_info->mix_chunk = Mix_LoadWAV(filename)) == NULL)
+ if ((snd_info->data_ptr = Mix_LoadWAV(filename)) == NULL)
{
- Error(ERR_WARN, "cannot read sound file '%s' -- no sounds", filename);
- free(filename);
- return FALSE;
+ Error(ERR_WARN, "cannot read sound file '%s'", filename);
+ free(snd_info);
+ return NULL;
+ }
+
+ snd_info->data_len = ((Mix_Chunk *)snd_info->data_ptr)->alen;
+
+#elif defined(TARGET_ALLEGRO)
+
+ if ((snd_info->data_ptr = load_sample(filename)) == NULL)
+ {
+ Error(ERR_WARN, "cannot read sound file '%s'", filename);
+ free(snd_info);
+ return NULL;
}
-#elif defined(PLATFORM_UNIX)
+ snd_info->data_len = ((SAMPLE *)snd_info->data_ptr)->len;
+
+#else /* AUDIO_UNIX_NATIVE */
if ((file = fopen(filename, MODE_READ)) == NULL)
{
- Error(ERR_WARN, "cannot open sound file '%s' -- no sounds", filename);
- free(filename);
- return FALSE;
+ Error(ERR_WARN, "cannot open sound file '%s'", filename);
+ free(snd_info);
+ return NULL;
}
- /* read chunk "RIFF" */
- getFileChunk(file, chunk, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN);
- if (strcmp(chunk, "RIFF") != 0)
+ /* read chunk id "RIFF" */
+ getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN);
+ if (strcmp(chunk_name, "RIFF") != 0)
{
Error(ERR_WARN, "missing 'RIFF' chunk of sound file '%s'", filename);
fclose(file);
- free(filename);
- return FALSE;
+ free(snd_info);
+ return NULL;
}
- /* read chunk "WAVE" */
- getFileChunk(file, chunk, &dummy, BYTE_ORDER_LITTLE_ENDIAN);
- if (strcmp(chunk, "WAVE") != 0)
+ /* read "RIFF" type id "WAVE" */
+ getFileChunk(file, chunk_name, NULL, BYTE_ORDER_LITTLE_ENDIAN);
+ if (strcmp(chunk_name, "WAVE") != 0)
{
- Error(ERR_WARN, "missing 'WAVE' chunk of sound file '%s'", filename);
+ Error(ERR_WARN, "missing 'WAVE' type ID of sound file '%s'", filename);
fclose(file);
- free(filename);
- return FALSE;
+ free(snd_info);
+ return NULL;
+ }
+
+ while (getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN))
+ {
+ if (strcmp(chunk_name, "fmt ") == 0)
+ {
+ /* read header information */
+ for (i=0; i < MIN(chunk_size, WAV_HEADER_SIZE); i++)
+ sound_header_buffer[i] = fgetc(file);
+
+ if (chunk_size > WAV_HEADER_SIZE)
+ ReadUnusedBytesFromFile(file, chunk_size - WAV_HEADER_SIZE);
+ }
+ else if (strcmp(chunk_name, "data") == 0)
+ {
+ snd_info->data_len = chunk_size;
+ snd_info->data_ptr = checked_malloc(snd_info->data_len);
+
+ /* read sound data */
+ if (fread(snd_info->data_ptr, 1, snd_info->data_len, file) !=
+ snd_info->data_len)
+ {
+ Error(ERR_WARN,"cannot read 'data' chunk of sound file '%s'",filename);
+ fclose(file);
+ free(snd_info->data_ptr);
+ free(snd_info);
+ return NULL;
+ }
+
+ /* check for odd number of sample bytes (data chunk is word aligned) */
+ if ((chunk_size % 2) == 1)
+ ReadUnusedBytesFromFile(file, 1);
+ }
+ else /* unknown chunk -- ignore */
+ ReadUnusedBytesFromFile(file, chunk_size);
}
- /* read header information */
- for (i=0; i<WAV_HEADER_SIZE; i++)
- sound_header_buffer[i] = fgetc(file);
+ fclose(file);
- /* read chunk "data" */
- getFileChunk(file, chunk, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN);
- if (strcmp(chunk, "data") != 0)
+ if (snd_info->data_ptr == NULL)
{
Error(ERR_WARN, "missing 'data' chunk of sound file '%s'", filename);
- fclose(file);
- free(filename);
- return FALSE;
+ free(snd_info);
+ return NULL;
}
- snd_info->data_len = chunk_size;
- snd_info->data_ptr = checked_malloc(snd_info->data_len);
+ snd_info->format = AUDIO_FORMAT_U8;
+
+#endif /* AUDIO_UNIX_NATIVE */
- /* read sound data */
- if (fread(snd_info->data_ptr, 1, snd_info->data_len, file) !=
- snd_info->data_len)
+ snd_info->type = SND_TYPE_WAV;
+ snd_info->source_filename = getStringCopy(filename);
+
+ return snd_info;
+}
+
+static void deleteSoundEntry(SoundInfo **snd_info)
+{
+ if (*snd_info)
{
- Error(ERR_WARN, "cannot read sound file '%s' -- no sounds", filename);
- fclose(file);
- free(filename);
- return FALSE;
- }
+ char *filename = (*snd_info)->source_filename;
- fclose(file);
+#if 0
+ printf("[decrementing reference counter of sound '%s']\n", filename);
+#endif
+
+ if (--(*snd_info)->num_references <= 0)
+ {
+#if 0
+ printf("[deleting sound '%s']\n", filename);
+#endif
+
+ /*
+ FreeSound(*snd_info);
+ */
+ deleteNodeFromList(&SoundFileList, filename, FreeSound);
+ }
- for (i=0; i<snd_info->data_len; i++)
- snd_info->data_ptr[i] = snd_info->data_ptr[i] ^ 0x80;
+ *snd_info = NULL;
+ }
+}
-#else /* PLATFORM_MSDOS */
+static void replaceSoundEntry(SoundInfo **snd_info, char *filename)
+{
+ ListNode *node;
- snd_info->sample_ptr = load_sample(filename);
- if (!snd_info->sample_ptr)
+ /* check if the old and the new sound file are the same */
+ if (*snd_info && strcmp((*snd_info)->source_filename, filename) == 0)
{
- Error(ERR_WARN, "cannot read sound file '%s' -- no sounds", filename);
- return FALSE;
+ /* 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
- free(filename);
+ *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);
- return TRUE;
+ if (strcmp(basename, SND_FILE_UNDEFINED) == 0)
+ {
+ deleteSoundEntry(snd_info);
+ return;
+ }
+
+ if (filename == NULL)
+ {
+ Error(ERR_WARN, "cannot find sound file '%s'", basename);
+ return;
+ }
+
+ replaceSoundEntry(snd_info, filename);
}
-boolean LoadSound(char *sound_name)
+void InitSoundList(struct SoundEffectInfo *sounds_list, int num_list_entries)
{
- return LoadSoundExt(sound_name, FALSE);
+ if (Sound == NULL)
+ Sound = checked_calloc(num_list_entries * sizeof(SoundInfo *));
+
+ sound_effect = sounds_list;
+ num_sounds = num_list_entries;
}
-boolean LoadMod(char *mod_name)
+void LoadSoundToList(char *basename, int list_pos)
{
-#if defined(TARGET_SDL)
- struct SampleInfo *mod_info;
- char *filename;
+ 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
+}
- num_mods++;
- Mod = checked_realloc(Mod, num_mods * sizeof(struct SampleInfo));
+static MusicInfo *Load_MOD(char *filename)
+{
+#if defined(TARGET_SDL)
+ MusicInfo *mod_info;
- mod_info = &Mod[num_mods - 1];
- mod_info->name = mod_name;
+ if (!audio.sound_available)
+ return NULL;
- filename = getPath2(options.music_directory, mod_info->name);
+ mod_info = checked_calloc(sizeof(MusicInfo));
- if ((mod_info->mix_music = Mix_LoadMUS(filename)) == NULL)
+ if ((mod_info->data_ptr = Mix_LoadMUS(filename)) == NULL)
{
- Error(ERR_WARN, "cannot read music file '%s' -- no music", filename);
- free(filename);
- return FALSE;
+ Error(ERR_WARN, "cannot read music file '%s'", filename);
+ free(mod_info);
+ return NULL;
}
- free(filename);
+ mod_info->type = MUS_TYPE_MOD;
+ mod_info->source_filename = getStringCopy(filename);
- return TRUE;
+ return mod_info;
#else
- return FALSE;
+ return NULL;
#endif
}
-int LoadMusic(void)
+void LoadCustomMusic(void)
{
+ char *music_directory = getCustomMusicDirectory();
DIR *dir;
struct dirent *dir_entry;
- int num_wav_music = 0;
- int num_mod_music = 0;
if (!audio.sound_available)
- return 0;
+ return;
- if ((dir = opendir(options.music_directory)) == NULL)
+ if ((dir = opendir(music_directory)) == NULL)
{
- Error(ERR_WARN, "cannot read music directory '%s'",
- options.music_directory);
+ Error(ERR_WARN, "cannot read music directory '%s'", music_directory);
audio.music_available = FALSE;
- return 0;
+ return;
}
while ((dir_entry = readdir(dir)) != NULL) /* loop until last dir entry */
{
- char *filename = dir_entry->d_name;
+ char *basename = dir_entry->d_name;
+ char *filename = getPath2(music_directory, basename);
+ MusicInfo *mus_info = NULL;
+
+ if (FileIsSound(basename))
+ mus_info = Load_WAV(filename);
+ else if (FileIsMusic(basename))
+ mus_info = Load_MOD(filename);
+
+ free(filename);
- if (FileIsSound(filename) && LoadSoundExt(filename, TRUE))
- num_wav_music++;
- else if (FileIsMusic(filename) && LoadMod(filename))
- num_mod_music++;
+ if (mus_info)
+ {
+ num_music++;
+ Music = checked_realloc(Music, num_music * sizeof(MusicInfo *));
+ Music[num_music -1] = mus_info;
+ }
}
closedir(dir);
- if (num_wav_music == 0 && num_mod_music == 0)
+ if (num_music == 0)
Error(ERR_WARN, "cannot find any valid music files in directory '%s'",
- options.music_directory);
-
- num_music = (num_mod_music > 0 ? num_mod_music : num_wav_music);
-
- audio.mods_available = (num_mod_music > 0);
- audio.music_available = (num_music > 0);
-
- return num_music;
+ music_directory);
}
void PlayMusic(int nr)
if (!audio.music_available)
return;
- if (!audio.mods_available)
- nr = num_sounds - num_music + nr;
-
-#if defined(TARGET_SDL)
- if (audio.mods_available) /* play MOD music */
- {
- Mix_PlayMusic(Mod[nr].mix_music, -1);
- Mix_VolumeMusic(SOUND_MAX_VOLUME); /* must be _after_ Mix_PlayMusic()! */
- }
- else /* play WAV music loop */
- {
- Mix_Volume(audio.music_channel, SOUND_MAX_VOLUME);
- Mix_PlayChannel(audio.music_channel, Sound[nr].mix_chunk, -1);
- }
-#else
- audio.music_nr = nr;
- PlaySoundLoop(nr);
-#endif
+ PlaySoundMusic(nr);
}
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)
+void PlaySoundStereo(int nr, int stereo_position)
{
- PlaySoundExt(nr, PSND_MAX_VOLUME, stereo, PSND_NO_LOOP);
+ PlaySoundExt(nr, PSND_MAX_VOLUME, stereo_position, 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, SND_CTRL_PLAY_MUSIC);
}
-void PlaySoundExt(int nr, int volume, int stereo, boolean loop)
+void PlaySoundExt(int nr, int volume, int stereo_position, int state)
{
- struct SoundControl snd_ctrl = emptySoundControl;
+ SoundControl snd_ctrl;
if (!audio.sound_available ||
!audio.sound_enabled ||
audio.sound_deactivated)
return;
- if (volume<PSND_MIN_VOLUME)
+ if (volume < PSND_MIN_VOLUME)
volume = PSND_MIN_VOLUME;
- else if (volume>PSND_MAX_VOLUME)
+ else if (volume > PSND_MAX_VOLUME)
volume = PSND_MAX_VOLUME;
- if (stereo<PSND_MAX_LEFT)
- stereo = PSND_MAX_LEFT;
- else if (stereo>PSND_MAX_RIGHT)
- stereo = PSND_MAX_RIGHT;
+ if (stereo_position < PSND_MAX_LEFT)
+ stereo_position = PSND_MAX_LEFT;
+ else if (stereo_position > PSND_MAX_RIGHT)
+ stereo_position = PSND_MAX_RIGHT;
- snd_ctrl.nr = nr;
- snd_ctrl.volume = volume;
- snd_ctrl.stereo = stereo;
- snd_ctrl.loop = loop;
- snd_ctrl.active = TRUE;
- snd_ctrl.data_ptr = Sound[nr].data_ptr;
- snd_ctrl.data_len = Sound[nr].data_len;
+ snd_ctrl.active = TRUE;
+ snd_ctrl.nr = nr;
+ snd_ctrl.volume = volume;
+ snd_ctrl.stereo_position = stereo_position;
+ snd_ctrl.state = state;
-#if defined(TARGET_SDL)
- Mix_Volume(-1, SOUND_MAX_VOLUME);
- Mix_PlayChannel(-1, Sound[nr].mix_chunk, (loop ? -1 : 0));
-#elif defined(PLATFORM_UNIX)
- if (audio.soundserver_pid == 0) /* we are child process */
- return;
-
- 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)
{
-#if defined(TARGET_SDL)
- if (!audio.sound_available)
+ if (!audio.music_available)
return;
- if (audio.mods_available)
- Mix_FadeOutMusic(SOUND_FADING_INTERVAL);
- else
- Mix_FadeOutChannel(audio.music_channel, SOUND_FADING_INTERVAL);
-#else
- FadeSound(audio.music_nr);
-#endif
+ StopSoundExt(-1, SND_CTRL_FADE_MUSIC);
}
void FadeSound(int nr)
{
- StopSoundExt(nr, SSND_FADE_SOUND);
+ StopSoundExt(nr, SND_CTRL_FADE_SOUND);
}
void FadeSounds()
{
FadeMusic();
- StopSoundExt(-1, SSND_FADE_ALL_SOUNDS);
+ StopSoundExt(-1, SND_CTRL_FADE_ALL);
}
void StopMusic(void)
{
-#if defined(TARGET_SDL)
- if (!audio.sound_available)
+ if (!audio.music_available)
return;
- if (audio.mods_available)
- Mix_HaltMusic();
- else
- Mix_HaltChannel(audio.music_channel);
-#else
- StopSound(audio.music_nr);
-#endif
+ StopSoundExt(-1, SND_CTRL_STOP_MUSIC);
}
void StopSound(int nr)
{
- StopSoundExt(nr, SSND_STOP_SOUND);
+ StopSoundExt(nr, SND_CTRL_STOP_SOUND);
}
void StopSounds()
{
- StopSoundExt(-1, SSND_STOP_ALL_SOUNDS);
+ 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 (SSND_FADING(method))
- snd_ctrl.fade_sound = TRUE;
+ snd_ctrl.active = FALSE;
+ snd_ctrl.nr = nr;
+ snd_ctrl.state = state;
- if (SSND_ALL(method))
- snd_ctrl.stop_all_sounds = TRUE;
- else
- {
- snd_ctrl.nr = nr;
- snd_ctrl.stop_sound = TRUE;
- }
+ HandleSoundRequest(snd_ctrl);
+}
-#if defined(TARGET_SDL)
+ListNode *newListNode()
+{
+ return checked_calloc(sizeof(ListNode));
+}
+
+void addNodeToList(ListNode **node_first, char *key, void *content)
+{
+ ListNode *node_new = newListNode();
+
+#if 0
+ printf("LIST: adding node with key '%s'\n", key);
+#endif
+
+ node_new->key = getStringCopy(key);
+ node_new->content = content;
+ node_new->next = *node_first;
+ *node_first = node_new;
+}
+
+void deleteNodeFromList(ListNode **node_first, char *key,
+ void (*destructor_function)(void *))
+{
+ if (node_first == NULL || *node_first == NULL)
+ return;
+
+#if 0
+ printf("[CHECKING LIST KEY '%s' == '%s']\n",
+ (*node_first)->key, key);
+#endif
- if (SSND_FADING(method))
+ if (strcmp((*node_first)->key, key) == 0)
{
- int i;
+#if 0
+ printf("[DELETING LIST ENTRY]\n");
+#endif
- for (i=0; i<audio.channels; i++)
- if (i != audio.music_channel || snd_ctrl.stop_all_sounds)
- Mix_FadeOutChannel(i, SOUND_FADING_INTERVAL);
- if (snd_ctrl.stop_all_sounds)
- Mix_FadeOutMusic(SOUND_FADING_INTERVAL);
+ free((*node_first)->key);
+ if (destructor_function)
+ destructor_function((*node_first)->content);
+ *node_first = (*node_first)->next;
}
else
- {
- int i;
+ deleteNodeFromList(&(*node_first)->next, key, destructor_function);
+}
+
+ListNode *getNodeFromKey(ListNode *node_first, char *key)
+{
+ if (node_first == NULL)
+ return NULL;
+
+ if (strcmp(node_first->key, key) == 0)
+ return node_first;
+ else
+ return getNodeFromKey(node_first->next, key);
+}
+
+int getNumNodes(ListNode *node_first)
+{
+ return (node_first ? 1 + getNumNodes(node_first->next) : 0);
+}
+
+void dumpList(ListNode *node_first)
+{
+ ListNode *node = node_first;
- for (i=0; i<audio.channels; i++)
- if (i != audio.music_channel || snd_ctrl.stop_all_sounds)
- Mix_HaltChannel(i);
- if (snd_ctrl.stop_all_sounds)
- Mix_HaltMusic();
+ while (node)
+ {
+ printf("['%s' (%d)]\n", node->key,
+ ((SoundInfo *)node->content)->num_references);
+ node = node->next;
}
-#else
-#if !defined(PLATFORM_MSDOS)
- if (audio.soundserver_pid == 0) /* we are child process */
+ printf("[%d nodes]\n", getNumNodes(node_first));
+}
+
+static void LoadSoundsInfo()
+{
+ char *filename = getCustomSoundConfigFilename();
+ struct SetupFileList *setup_file_list;
+ int i;
+
+ /* always start with reliable default values */
+ for (i=0; i<num_sounds; i++)
+ sound_effect[i].filename = NULL;
+
+ if (filename == NULL)
return;
- if (write(audio.soundserver_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0)
+ if ((setup_file_list = loadSetupFileList(filename)))
{
- Error(ERR_WARN, "cannot pipe to child process -- no sounds");
- audio.sound_available = audio.sound_enabled = FALSE;
- return;
+ for (i=0; i<num_sounds; i++)
+ sound_effect[i].filename =
+ getStringCopy(getTokenValue(setup_file_list, sound_effect[i].text));
+
+ freeSetupFileList(setup_file_list);
+
+#if 1
+ for (i=0; i<num_sounds; i++)
+ {
+ printf("'%s' ", sound_effect[i].text);
+ if (sound_effect[i].filename)
+ printf("-> '%s'\n", sound_effect[i].filename);
+ else
+ printf("-> UNDEFINED [-> '%s']\n", sound_effect[i].default_filename);
+ }
+#endif
}
-#else
- sound_handler(snd_ctrl);
+}
+
+static void ReloadCustomSounds()
+{
+ int i;
+
+#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)
+ LoadSoundToList(sound_effect[i].filename, i);
+ else
+ LoadSoundToList(sound_effect[i].default_filename, i);
+ }
+
+ /*
+ printf("list size == %d\n", getNumNodes(SoundFileList));
+ */
+
+#if 0
+ dumpList(SoundFileList);
#endif
}
-void InitReloadSounds(char *set_name)
+static void ReloadCustomMusic()
{
- struct SoundControl snd_ctrl = emptySoundControl;
+#if 0
+ printf("DEBUG: reloading music '%s' ...\n", artwork.music_set_current);
+#endif
+
+ FreeAllMusic();
+ LoadCustomMusic();
+}
+
+void InitReloadSounds(char *set_name)
+{
if (!audio.sound_available)
return;
- snd_ctrl.reload_sounds = TRUE;
+#if defined(TARGET_SDL) || defined(TARGET_ALLEGRO)
+ ReloadCustomSounds();
+#elif defined(AUDIO_UNIX_NATIVE)
+ WriteReloadInfoToPipe(set_name, SND_CTRL_RELOAD_SOUNDS);
+#endif
+}
-#if defined(TARGET_SDL)
- ReloadSounds();
-#elif defined(PLATFORM_UNIX)
- if (audio.soundserver_pid == 0) /* we are child process */
+void InitReloadMusic(char *set_name)
+{
+ if (!audio.music_available)
return;
- 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);
+#if defined(TARGET_SDL) || defined(TARGET_ALLEGRO)
+ ReloadCustomMusic();
+#elif defined(AUDIO_UNIX_NATIVE)
+ WriteReloadInfoToPipe(set_name, SND_CTRL_RELOAD_MUSIC);
#endif
}
-void InitReloadMusic(char *set_name)
+void FreeSound(void *ptr)
{
- struct SoundControl snd_ctrl = emptySoundControl;
+ SoundInfo *sound = (SoundInfo *)ptr;
- if (!audio.sound_available)
+ if (sound == NULL)
return;
- snd_ctrl.reload_music = TRUE;
-
+ if (sound->data_ptr)
+ {
#if defined(TARGET_SDL)
- ReloadMusic();
-#elif defined(PLATFORM_UNIX)
- if (audio.soundserver_pid == 0) /* we are child process */
+ Mix_FreeChunk(sound->data_ptr);
+#elif defined(TARGET_ALLEGRO)
+ destroy_sample(sound->data_ptr);
+#else /* AUDIO_UNIX_NATIVE */
+ free(sound->data_ptr);
+#endif
+ }
+
+ if (sound->source_filename)
+ free(sound->source_filename);
+
+ free(sound);
+}
+
+void FreeMusic(MusicInfo *music)
+{
+ if (music == NULL)
return;
- if (write(audio.soundserver_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0)
+ if (music->data_ptr)
{
- 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);
+#if defined(TARGET_SDL)
+ if (music->type == MUS_TYPE_MOD)
+ Mix_FreeMusic(music->data_ptr);
+ else
+ Mix_FreeChunk(music->data_ptr);
+#elif defined(TARGET_ALLEGRO)
+ destroy_sample(music->data_ptr);
+#else /* AUDIO_UNIX_NATIVE */
+ free(music->data_ptr);
#endif
+ }
+
+ free(music);
}
-void FreeSounds(int num_sounds)
+void FreeAllSounds()
{
int i;
- if (!audio.sound_available)
+ if (Sound == NULL)
return;
+ printf("%s: FREEING SOUNDS ...\n",
+ IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT");
+
for(i=0; i<num_sounds; i++)
-#if defined(TARGET_SDL)
- free(Sound[i].mix_chunk);
-#elif !defined(PLATFORM_MSDOS)
- free(Sound[i].data_ptr);
-#else
- destroy_sample(Sound[i].sample_ptr);
-#endif
+ deleteSoundEntry(&Sound[i]);
+ /*
+ FreeSound(Sound[i]);
+ */
+
+ printf("%s: FREEING SOUNDS -- DONE\n",
+ IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT");
+
+ free(Sound);
+
+ Sound = NULL;
+ num_sounds = 0;
+}
+
+void FreeAllMusic()
+{
+ int i;
+
+ if (Music == NULL)
+ return;
+
+ for(i=0; i<num_music; i++)
+ FreeMusic(Music[i]);
+
+ free(Music);
+
+ Music = NULL;
+ num_music = 0;
}
/* THE STUFF ABOVE IS ONLY USED BY THE MAIN PROCESS */