X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsound.c;h=b29d5dd62616a3dc9b1f245b2cb83707b9cf6397;hb=cb5fe20318d9b2c18cb82bc1f7197150cfba7bc0;hp=20991570de7e00005ccdf1f900790e70f4429145;hpb=430aa8b71d2031eabc6341d4812363023105586e;p=rocksndiamonds.git diff --git a/src/libgame/sound.c b/src/libgame/sound.c index 20991570..b29d5dd6 100644 --- a/src/libgame/sound.c +++ b/src/libgame/sound.c @@ -17,12 +17,136 @@ #include #include #include +#include + +#include "platform.h" + +#if defined(PLATFORM_LINUX) +#include +#include +#elif defined(PLATFORM_FREEBSD) +#include +#elif defined(PLATFORM_NETBSD) +#include +#include +#elif defined(PLATFORM_HPUX) +#include +#endif #include "system.h" #include "sound.h" #include "misc.h" #include "setup.h" +#include "text.h" + + +/* expiration time (in milliseconds) for sound loops */ +#define SOUND_LOOP_EXPIRATION_TIME 200 + +/* one second fading interval == 1000 ticks (milliseconds) */ +#define SOUND_FADING_INTERVAL 1000 + +#if defined(AUDIO_STREAMING_DSP) +#define SOUND_FADING_VOLUME_STEP (SOUND_MAX_VOLUME / 40) +#define SOUND_FADING_VOLUME_THRESHOLD (SOUND_FADING_VOLUME_STEP * 2) +#endif + +#if !defined(PLATFORM_HPUX) +#define SND_BLOCKSIZE 4096 +#else +#define SND_BLOCKSIZE 32768 +#endif + +#define SND_TYPE_NONE 0 +#define SND_TYPE_WAV 1 + +#define MUS_TYPE_NONE 0 +#define MUS_TYPE_WAV 1 +#define MUS_TYPE_MOD 2 + +#define DEVICENAME_DSP "/dev/dsp" +#define DEVICENAME_AUDIO "/dev/audio" +#define DEVICENAME_AUDIOCTL "/dev/audioCtl" + +#define SOUND_VOLUME_LEFT(x) (stereo_volume[x]) +#define SOUND_VOLUME_RIGHT(x) (stereo_volume[SOUND_MAX_LEFT2RIGHT-x]) + + +#if 0 +struct SoundHeader_SUN +{ + unsigned long magic; + unsigned long hdr_size; + unsigned long data_size; + unsigned long encoding; + unsigned long sample_rate; + unsigned long channels; +}; + +struct SoundHeader_8SVX +{ + char magic_FORM[4]; + unsigned long chunk_size; + char magic_8SVX[4]; +}; +#endif + +#if defined(AUDIO_UNIX_NATIVE) +struct SoundHeader_WAV +{ + unsigned short compression_code; + unsigned short num_channels; + unsigned long sample_rate; + unsigned long bytes_per_second; + unsigned short block_align; + unsigned short bits_per_sample; +}; +#endif + +struct AudioFormatInfo +{ + boolean stereo; /* availability of stereo sound */ + int format; /* size and endianess of sample data */ + int sample_rate; /* sample frequency */ + int fragment_size; /* audio device fragment size in bytes */ +}; + +struct SampleInfo +{ + char *source_filename; + int num_references; + + int type; + int format; + void *data_ptr; /* pointer to first sample (8 or 16 bit) */ + long data_len; /* number of samples, NOT number of bytes */ +}; +typedef struct SampleInfo SoundInfo; +typedef struct SampleInfo MusicInfo; + +struct SoundControl +{ + boolean active; + + int nr; + int volume; + int stereo_position; + int state; + + unsigned long playing_starttime; + unsigned long playing_pos; + + int type; + int format; + void *data_ptr; /* pointer to first sample (8 or 16 bit) */ + long data_len; /* number of samples, NOT number of bytes */ + +#if defined(TARGET_ALLEGRO) + int voice; +#endif +}; +typedef struct SoundControl SoundControl; struct ListNode { @@ -44,50 +168,36 @@ static ListNode *SoundFileList = NULL; static SoundInfo **Sound = NULL; static MusicInfo **Music = NULL; static int num_sounds = 0, num_music = 0; +static int stereo_volume[SOUND_MAX_LEFT2RIGHT + 1]; /* ========================================================================= */ /* 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[NUM_MIXER_CHANNELS]; +static struct SoundControl mixer[NUM_MIXER_CHANNELS]; +static int mixer_active_channels = 0; -#if 0 -static struct SoundControl emptySoundControl = -{ -#if 1 - FALSE, -1, 0, 0, FALSE, 0, 0, 0, NULL -#else - -1,0,0, FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE, 0,0, 0,NULL -#endif -}; -#endif - -/* forward declaration of internal functions */ -static void SoundServer_InsertNewSound(struct SoundControl); -static void InitAudioDevice(struct AudioFormatInfo *); +#if defined(AUDIO_UNIX_NATIVE) +static struct AudioFormatInfo afmt; -#if 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 -#elif defined(PLATFORM_MSDOS) -static void SoundServer_InsertNewSound(struct SoundControl); -static void SoundServer_StopSound(struct SoundControl); -static void SoundServer_StopAllSounds(); #endif static void ReloadCustomSounds(); static void ReloadCustomMusic(); static void FreeSound(void *); -#if defined(PLATFORM_UNIX) + +/* ------------------------------------------------------------------------- */ +/* functions for native (non-SDL) Unix audio/mixer support */ +/* ------------------------------------------------------------------------- */ + +#if defined(AUDIO_UNIX_NATIVE) + static int OpenAudioDevice(char *audio_device_name) { int audio_device_fd; @@ -144,34 +254,27 @@ static boolean TestAudioDevices(void) 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) { @@ -196,42 +299,232 @@ 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); +} + + +/* ------------------------------------------------------------------------- */ +/* 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; + + /* determine logarithm (log2) of the fragment size */ + while ((1 << fragment_spec) < afmt->fragment_size) + fragment_spec++; + + /* 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; + + /* 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 (ioctl(audio.device_fd, SNDCTL_DSP_SETFRAGMENT, &fragment_spec) < 0) + Error(ERR_EXIT_SOUND_SERVER, + "cannot set fragment size of /dev/dsp -- no sounds"); + + 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; + } + } + + if (afmt->format == 0) /* no supported audio format found */ + Error(ERR_EXIT_SOUND_SERVER, + "cannot set audio format of /dev/dsp -- no sounds"); + + /* try if we can use stereo sound */ + afmt->stereo = TRUE; + if (ioctl(audio.device_fd, SNDCTL_DSP_STEREO, &stereo) < 0) + afmt->stereo = FALSE; + + 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"); + + /* 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 */ + +#if defined(PLATFORM_NETBSD) +static void InitAudioDevice_NetBSD(struct AudioFormatInfo *afmt) +{ + audio_info_t a_info; + boolean stereo = TRUE; + + 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; + + afmt->format = AUDIO_FORMAT_U8; + afmt->stereo = TRUE; + + if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0) + { + /* try to disable stereo */ + a_info.play.channels = 1; + + afmt->stereo = FALSE; + + 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(PLATFORM_HPUX) +static void InitAudioDevice_HPUX(struct AudioFormatInfo *afmt) +{ + struct audio_describe ainfo; + int audio_ctl; + + audio_ctl = open("/dev/audioCtl", O_WRONLY | O_NDELAY); + if (audio_ctl == -1) + Error(ERR_EXIT_SOUND_SERVER, "cannot open /dev/audioCtl -- no sounds"); + + if (ioctl(audio_ctl, AUDIO_DESCRIBE, &ainfo) == -1) + Error(ERR_EXIT_SOUND_SERVER, "no audio info -- no sounds"); + + if (ioctl(audio_ctl, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_ULAW) == -1) + Error(ERR_EXIT_SOUND_SERVER, "ulaw audio not available -- no sounds"); + + ioctl(audio_ctl, AUDIO_SET_CHANNELS, 1); + ioctl(audio_ctl, AUDIO_SET_SAMPLE_RATE, 8000); + + afmt->format = AUDIO_FORMAT_U8; + afmt->stereo = FALSE; + afmt->sample_rate = 8000; + + close(audio_ctl); +} +#endif /* PLATFORM_HPUX */ + +static void InitAudioDevice(struct AudioFormatInfo *afmt) +{ + afmt->stereo = TRUE; + afmt->format = AUDIO_FORMAT_UNKNOWN; + afmt->sample_rate = DEFAULT_AUDIO_SAMPLE_RATE; + afmt->fragment_size = DEFAULT_AUDIO_FRAGMENT_SIZE; + +#if defined(AUDIO_LINUX_IOCTL) + InitAudioDevice_Linux(afmt); +#elif defined(PLATFORM_NETBSD) + InitAudioDevice_NetBSD(afmt); +#elif defined(PLATFORM_HPUX) + InitAudioDevice_HPUX(afmt); +#else + /* generic /dev/audio stuff might be placed here */ +#endif +} + + +/* ------------------------------------------------------------------------- */ +/* functions for communication between main process and sound mixer process */ +/* ------------------------------------------------------------------------- */ + +static void SendSoundControlToMixerProcess(SoundControl *snd_ctrl) +{ + if (IS_CHILD_PROCESS(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) { - struct SoundControl snd_ctrl; + 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.soundserver_pipe[1], &snd_ctrl, + if (write(audio.mixer_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0 || - write(audio.soundserver_pipe[1], set_name, + write(audio.mixer_pipe[1], set_name, snd_ctrl.data_len) < 0 || - write(audio.soundserver_pipe[1], leveldir_current, + write(audio.mixer_pipe[1], leveldir_current, sizeof(TreeInfo)) < 0 || - write(audio.soundserver_pipe[1], ti, + write(audio.mixer_pipe[1], ti, sizeof(TreeInfo)) < 0 || - write(audio.soundserver_pipe[1], &str_size1, + write(audio.mixer_pipe[1], &str_size1, sizeof(unsigned long)) < 0 || - write(audio.soundserver_pipe[1], &str_size2, + write(audio.mixer_pipe[1], &str_size2, sizeof(unsigned long)) < 0 || - write(audio.soundserver_pipe[1], &str_size3, + write(audio.mixer_pipe[1], &str_size3, sizeof(unsigned long)) < 0 || - write(audio.soundserver_pipe[1], leveldir_current->fullpath, + write(audio.mixer_pipe[1], leveldir_current->fullpath, str_size1) < 0 || - write(audio.soundserver_pipe[1], ti->basepath, + write(audio.mixer_pipe[1], ti->basepath, str_size2) < 0 || - write(audio.soundserver_pipe[1], ti->fullpath, + write(audio.mixer_pipe[1], ti->fullpath, str_size3) < 0) { Error(ERR_WARN, "cannot pipe to child process -- no sounds"); @@ -240,9 +533,9 @@ static void WriteReloadInfoToPipe(char *set_name, int type) } } -static void ReadReloadInfoFromPipe(struct SoundControl snd_ctrl) +static void ReadReloadInfoFromPipe(SoundControl *snd_ctrl) { - TreeInfo **ti_ptr = ((snd_ctrl.state & SND_CTRL_RELOAD_SOUNDS) ? + 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; @@ -251,7 +544,7 @@ static void ReadReloadInfoFromPipe(struct SoundControl snd_ctrl) if (set_name) free(set_name); - set_name = checked_malloc(snd_ctrl.data_len); + set_name = checked_malloc(snd_ctrl->data_len); if (leveldir_current == NULL) leveldir_current = checked_calloc(sizeof(TreeInfo)); @@ -264,17 +557,17 @@ static void ReadReloadInfoFromPipe(struct SoundControl snd_ctrl) 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, + 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.soundserver_pipe[0], ti, + read(audio.mixer_pipe[0], ti, sizeof(TreeInfo)) != sizeof(TreeInfo) || - read(audio.soundserver_pipe[0], &str_size1, + read(audio.mixer_pipe[0], &str_size1, sizeof(unsigned long)) != sizeof(unsigned long) || - read(audio.soundserver_pipe[0], &str_size2, + read(audio.mixer_pipe[0], &str_size2, sizeof(unsigned long)) != sizeof(unsigned long) || - read(audio.soundserver_pipe[0], &str_size3, + read(audio.mixer_pipe[0], &str_size3, sizeof(unsigned long)) != sizeof(unsigned long)) Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds"); @@ -282,125 +575,290 @@ static void ReadReloadInfoFromPipe(struct SoundControl snd_ctrl) ti->basepath = checked_calloc(str_size2); ti->fullpath = checked_calloc(str_size3); - if (read(audio.soundserver_pipe[0], leveldir_current->fullpath, + if (read(audio.mixer_pipe[0], leveldir_current->fullpath, str_size1) != str_size1 || - read(audio.soundserver_pipe[0], ti->basepath, + read(audio.mixer_pipe[0], ti->basepath, str_size2) != str_size2 || - read(audio.soundserver_pipe[0], ti->fullpath, + 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) + 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) +#endif /* AUDIO_UNIX_NATIVE */ + + +/* ------------------------------------------------------------------------- */ +/* mixer functions */ +/* ------------------------------------------------------------------------- */ + +void Mixer_InitChannels() { int i; for(i=0; i= num_sounds) +#if defined(TARGET_SDL) + + if (!Mix_Playing(channel)) + return TRUE; + +#elif defined(TARGET_ALLEGRO) + + mixer[channel].playing_pos = voice_get_position(mixer[channel].voice); + mixer[channel].volume = voice_get_volume(mixer[channel].voice); + + /* sound sample has completed playing or was completely faded out */ + if (mixer[channel].playing_pos == -1 || mixer[channel].volume == 0) + return TRUE; + +#endif /* TARGET_ALLEGRO */ + + return FALSE; +} + +static boolean Mixer_AllocateChannel(int channel) +{ +#if defined(TARGET_ALLEGRO) + mixer[channel].voice = allocate_voice((SAMPLE *)mixer[channel].data_ptr); + if (mixer[channel].voice < 0) + return FALSE; +#endif + + return TRUE; +} + +static void Mixer_SetChannelProperties(int channel) +{ +#if defined(TARGET_SDL) + Mix_Volume(channel, mixer[channel].volume); + Mix_SetPanning(channel, + SOUND_VOLUME_LEFT(mixer[channel].stereo_position), + SOUND_VOLUME_RIGHT(mixer[channel].stereo_position)); +#elif defined(TARGET_ALLEGRO) + voice_set_volume(mixer[channel].voice, mixer[channel].volume); + voice_set_pan(mixer[channel].voice, mixer[channel].stereo_position); +#endif +} + +static void Mixer_StartChannel(int channel) +{ +#if defined(TARGET_SDL) + Mix_PlayChannel(channel, mixer[channel].data_ptr, + IS_LOOP(mixer[channel]) ? -1 : 0); +#elif defined(TARGET_ALLEGRO) + if (IS_LOOP(mixer[channel])) + voice_set_playmode(mixer[channel].voice, PLAYMODE_LOOP); + + voice_start(mixer[channel].voice); +#endif +} + +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; - snd_info = (IS_MUSIC(snd_ctrl) ? Music[snd_ctrl.nr] : Sound[snd_ctrl.nr]); - if (snd_info == NULL) + if (!Mixer_AllocateChannel(channel)) + return; + + Mixer_SetChannelProperties(channel); + Mixer_StartChannel(channel); + + Mixer_ResetChannelExpiration(channel); + + mixer[channel].playing_pos = 0; + 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 0 - printf("sound/music %d undefined\n", 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 +} + +static void Mixer_StopChannel(int channel) +{ + if (!mixer[channel].active) return; - } -#if 0 - printf("-> %d\n", playing_sounds); +#if defined(TARGET_SDL) + Mix_HaltChannel(channel); +#elif defined(TARGET_ALLEGRO) + voice_set_volume(mixer[channel].voice, 0); + deallocate_voice(mixer[channel].voice); #endif - if (playing_sounds == audio.num_channels) - { - for (i=0; i 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 = SOUND_MAX_VOLUME; + +#if defined(TARGET_SDL) + Mix_ExpireChannel(channel, -1); + Mix_Volume(channel, mixer[channel].volume); +#elif defined(TARGET_ALLEGRO) + voice_stop_volumeramp(mixer[channel].voice); + voice_ramp_volume(mixer[channel].voice, SOUND_FADING_INTERVAL, + mixer[channel].volume); #endif - PlaylistRemoveSound(longest_nr); +} + +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)) + { +#if 0 + printf("PLAY MUSIC WITH VOLUME/STEREO %d/%d\n", + snd_ctrl.volume, snd_ctrl.stereo_position); +#endif + + mixer[audio.music_channel] = snd_ctrl; + Mixer_PlayMusicChannel(); + + return; } /* check if sound is already being played (and how often) */ for (k=0, i=audio.first_sound_channel; i= 1 && IS_LOOP(snd_ctrl)) +#if 0 + printf("SOUND %d [CURRENTLY PLAYING %d TIMES]\n", snd_ctrl.nr, k); +#endif + + /* reset expiration delay for already playing loop sounds */ + if (k > 0 && IS_LOOP(snd_ctrl)) { for(i=audio.first_sound_channel; i= 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=audio.first_sound_channel; i= longest) { longest = actual; @@ -433,14 +890,37 @@ static void PlaylistInsertSound(struct SoundControl snd_ctrl) } } -#if defined(PLATFORM_MSDOS) - voice_set_volume(playlist[longest_nr].voice, 0); - deallocate_voice(playlist[longest_nr].voice); -#endif - PlaylistRemoveSound(longest_nr); + 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 longest) + { + longest = actual; + longest_nr = i; + } + } + + Mixer_StopChannel(longest_nr); } - /* add new sound to playlist */ + /* add the new sound to the mixer */ for(i=0; idata_ptr; - snd_ctrl.data_len = snd_info->data_len; - snd_ctrl.format = snd_info->format; +#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 && playlist[i].active) + if (IS_MUSIC(snd_ctrl) && i == audio.music_channel && mixer[i].active) { printf("THIS SHOULD NEVER HAPPEN! [adding music twice]\n"); #if 1 - PlaylistRemoveSound(i); + Mixer_StopChannel(i); #endif } #endif - playlist[i] = snd_ctrl; - playing_sounds++; - -#if 0 - printf("NEW SOUND %d ADDED TO PLAYLIST\n", snd_ctrl.nr); -#endif - -#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); + mixer[i] = snd_ctrl; + Mixer_PlayChannel(i); - 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; } } } -static void HandleSoundRequest(struct SoundControl snd_ctrl) +static void HandleSoundRequest(SoundControl snd_ctrl) { int i; +#if defined(AUDIO_UNIX_NATIVE) + if (IS_PARENT_PROCESS(audio.mixer_pid)) + { + SendSoundControlToMixerProcess(&snd_ctrl); + return; + } +#endif + + /* deactivate channels that have expired since the last request */ + for (i=0; imajor, + link_version->minor, + link_version->patch); +#endif + if (!audio.sound_available) return; -#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL) + /* initialize stereo position conversion information */ + for(i=0; i<=SOUND_MAX_LEFT2RIGHT; i++) + stereo_volume[i] = + (int)sqrt((float)(SOUND_MAX_LEFT2RIGHT * SOUND_MAX_LEFT2RIGHT - i * i)); + +#if defined(AUDIO_UNIX_NATIVE) if (!ForkAudioProcess()) audio.sound_available = FALSE; #endif } -#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL) +#if defined(AUDIO_UNIX_NATIVE) -static void CopySampleToMixingBuffer(struct SoundControl *snd_ctrl, +static void CopySampleToMixingBuffer(SoundControl *snd_ctrl, int sample_pos, int sample_size, short *buffer_ptr) { @@ -583,31 +1087,20 @@ static void CopySampleToMixingBuffer(struct SoundControl *snd_ctrl, } #if defined(AUDIO_STREAMING_DSP) -static void SoundServer_Mixer() +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 fragment_size = afmt.fragment_size; - int sample_bytes = (afmt.format & AUDIO_FORMAT_U8 ? 1 : 2); - boolean stereo = afmt.stereo; 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)); - - stereo_volume_calculated = TRUE; - } - - if (!playing_sounds) + if (!mixer_active_channels) return; if (audio.device_fd < 0) @@ -618,6 +1111,9 @@ static void SoundServer_Mixer() InitAudioDevice(&afmt); } + 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 */ @@ -631,29 +1127,35 @@ static void SoundServer_Mixer() int sample_pos; int sample_size; - if (!playlist[i].active) + if (!mixer[i].active) continue; + if (Mixer_ChannelExpired(i)) + { + Mixer_StopChannel(i); + 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_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); - playlist[i].playingpos += sample_size; + mixer[i].playing_pos += sample_size; /* copy original sample to first mixing buffer */ - CopySampleToMixingBuffer(&playlist[i], sample_pos, sample_size, + CopySampleToMixingBuffer(&mixer[i], sample_pos, sample_size, premix_first_buffer); /* are we about to restart a looping sound? */ - if (IS_LOOP(playlist[i]) && sample_size < max_sample_size) + if (IS_LOOP(mixer[i]) && 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) + if (mixer[i].format == AUDIO_FORMAT_U8) for (j=0; j= SOUND_FADING_VOLUME_THRESHOLD) - playlist[i].volume -= SOUND_FADING_VOLUME_STEP; + 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 (playlist[i].volume != PSND_MAX_VOLUME) + if (mixer[i].volume != SOUND_MAX_VOLUME) for(j=0; j> PSND_MAX_VOLUME_BITS; + mixer[i].volume * (long)premix_first_buffer[j] / SOUND_MAX_VOLUME; /* 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]; + int left_volume = SOUND_VOLUME_LEFT(mixer[i].stereo_position); + int right_volume = SOUND_VOLUME_RIGHT(mixer[i].stereo_position); for(j=0; j> PSND_MAX_LEFT2RIGHT_BITS; + left_volume * premix_first_buffer[j] / SOUND_MAX_LEFT2RIGHT; premix_right_buffer[j] = - (right_volume * premix_first_buffer[j]) - >> PSND_MAX_LEFT2RIGHT_BITS; + right_volume * premix_first_buffer[j] / SOUND_MAX_LEFT2RIGHT; premix_last_buffer[2 * j + 0] += premix_left_buffer[j]; premix_last_buffer[2 * j + 1] += premix_right_buffer[j]; @@ -705,16 +1203,16 @@ static void SoundServer_Mixer() premix_last_buffer[j] += premix_first_buffer[j]; } - /* delete completed sound entries from the playlist */ - if (playlist[i].playingpos >= playlist[i].data_len) + /* delete completed sound entries from the mixer */ + if (mixer[i].playing_pos >= mixer[i].data_len) { - if (IS_LOOP(playlist[i])) - playlist[i].playingpos = 0; + if (IS_LOOP(mixer[i])) + mixer[i].playing_pos = 0; else - PlaylistRemoveSound(i); + Mixer_StopChannel(i); } - else if (playlist[i].volume <= SOUND_FADING_VOLUME_THRESHOLD) - PlaylistRemoveSound(i); + else if (mixer[i].volume <= SOUND_FADING_VOLUME_THRESHOLD) + Mixer_StopChannel(i); } /* prepare final playing buffer according to system audio format */ @@ -748,13 +1246,13 @@ static void SoundServer_Mixer() /* finally play the sound fragment */ write(audio.device_fd, playing_buffer, fragment_size); - if (!playing_sounds) + if (!mixer_active_channels) CloseAudioDevice(&audio.device_fd); } #else /* !AUDIO_STREAMING_DSP */ -static int SoundServer_SimpleAudio(struct SoundControl snd_ctrl) +static int Mixer_Main_SimpleAudio(SoundControl snd_ctrl) { static short premix_first_buffer[SND_BLOCKSIZE]; static byte playing_buffer[SND_BLOCKSIZE]; @@ -768,22 +1266,21 @@ static int SoundServer_SimpleAudio(struct SoundControl snd_ctrl) i = 1; /* 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_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); - playlist[i].playingpos += sample_size; + mixer[i].playing_pos += sample_size; /* copy original sample to first mixing buffer */ - CopySampleToMixingBuffer(&playlist[i], sample_pos, sample_size, + CopySampleToMixingBuffer(&mixer[i], sample_pos, sample_size, premix_first_buffer); /* adjust volume of actual sound sample */ - if (playlist[i].volume != PSND_MAX_VOLUME) + if (mixer[i].volume != SOUND_MAX_VOLUME) for(j=0; j> PSND_MAX_VOLUME_BITS; + mixer[i].volume * (long)premix_first_buffer[j] / SOUND_MAX_VOLUME; /* might be needed for u-law /dev/audio */ #if 0 @@ -792,565 +1289,98 @@ static int SoundServer_SimpleAudio(struct SoundControl snd_ctrl) linear_to_ulaw(premix_first_buffer[j]); #endif - /* delete completed sound entries from the playlist */ - if (playlist[i].playingpos >= playlist[i].data_len) - PlaylistRemoveSound(i); + /* delete completed sound entries from the mixer */ + if (mixer[i].playing_pos >= mixer[i].data_len) + Mixer_StopChannel(i); for(i=0; i> 8) ^ 0x80; - /* finally play the sound fragment */ - write(audio.device_fd, playing_buffer, sample_size); - - return sample_size; -} -#endif /* !AUDIO_STREAMING_DSP */ - -void SoundServer() -{ - struct SoundControl snd_ctrl; - fd_set sound_fdset; - - close(audio.soundserver_pipe[1]); /* no writing into pipe needed */ - - InitPlaylist(); - -#if defined(PLATFORM_HPUX) - InitAudioDevice(&afmt); -#endif - - FD_ZERO(&sound_fdset); - FD_SET(audio.soundserver_pipe[0], &sound_fdset); - - while(1) /* wait for sound playing commands from client */ - { - struct timeval delay = { 0, 0 }; - - 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"); - - HandleSoundRequest(snd_ctrl); - -#if defined(AUDIO_STREAMING_DSP) - - while (playing_sounds && select(audio.soundserver_pipe[0] + 1, - &sound_fdset, NULL, NULL, &delay) < 1) - { - FD_SET(audio.soundserver_pipe[0], &sound_fdset); - - SoundServer_Mixer(); - } - -#else /* !AUDIO_STREAMING_DSP */ - - if (!snd_ctrl.active || IS_LOOP(snd_ctrl) || - (audio.device_fd = OpenAudioDevice(audio.device_name)) < 0) - continue; - - InitAudioDevice(&afmt); - - delay.tv_sec = 0; - delay.tv_usec = 0; - - while (playing_sounds && select(audio.soundserver_pipe[0] + 1, - &sound_fdset, NULL, NULL, &delay) < 1) - { - int wait_percent = 90; /* wait 90% of the real playing time */ - int sample_size; - - FD_SET(audio.soundserver_pipe[0], &sound_fdset); - - sample_size = SoundServer_SimpleAudio(snd_ctrl); - - delay.tv_sec = 0; - delay.tv_usec = - ((sample_size * 10 * wait_percent) / afmt.sample_rate) * 1000; - } - - CloseAudioDevice(&audio.device_fd); - - /* delete all sounds from playlist */ - InitPlaylist(); - -#endif /* !AUDIO_STREAMING_DSP */ - } -} -#endif /* PLATFORM_UNIX */ - -#if defined(PLATFORM_MSDOS) -static void sound_handler(struct SoundControl snd_ctrl) -{ - int i; - - if (snd_ctrl.fade_sound) - { - if (!playing_sounds) - return; - - for (i=0; i= num_sounds) - return; - - snd_info = (IS_MUSIC(snd_ctrl) ? Music[snd_ctrl.nr] : Sound[snd_ctrl.nr]); - if (snd_info == NULL) - { -#if 0 - printf("sound/music %d undefined\n", snd_ctrl.nr); -#endif - return; - } - -#if 0 - printf("-> %d\n", playing_sounds); -#endif - - if (playing_sounds == audio.num_channels) - { - for (i=0; i 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 - PlaylistRemoveSound(longest_nr); - } - - /* check if sound is already being played (and how often) */ - for (k=0, i=audio.first_sound_channel; i= 1 && IS_LOOP(snd_ctrl)) - { - for(i=audio.first_sound_channel; i= 2) - { - int longest = 0, longest_nr = 0; - - /* look for oldest equal sound */ - for(i=audio.first_sound_channel; i= 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 - PlaylistRemoveSound(longest_nr); - } - - /* add new sound to playlist */ - for(i=0; idata_ptr; - snd_ctrl.data_len = snd_info->data_len; - snd_ctrl.format = snd_info->format; - - snd_ctrl.playingpos = 0; - snd_ctrl.playingtime = 0; - -#if 1 - if (snd_info->data_len == 0) - { - printf("THIS SHOULD NEVER HAPPEN! [snd_info->data_len == 0]\n"); - } -#endif - -#if 1 - if (IS_MUSIC(snd_ctrl) && i == audio.music_channel && playlist[i].active) - { - printf("THIS SHOULD NEVER HAPPEN! [adding music twice]\n"); - -#if 1 - PlaylistRemoveSound(i); -#endif - } -#endif - - playlist[i] = snd_ctrl; - playing_sounds++; - -#if 0 - printf("NEW SOUND %d ADDED TO PLAYLIST\n", snd_ctrl.nr); -#endif - -#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; - } - } -} -#endif /* !PLATFORM_WIN32 */ - -/* -void SoundServer_FadeSound(int nr) -{ - int i; - - if (!playing_sounds) - return; - - for(i=0;ifragment_size) - fragment_spec++; - - /* 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; - - /* 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 (ioctl(audio.device_fd, SNDCTL_DSP_SETFRAGMENT, &fragment_spec) < 0) - Error(ERR_EXIT_SOUND_SERVER, - "cannot set fragment size of /dev/dsp -- no sounds"); - - 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; - } - } - - if (afmt->format == 0) /* no supported audio format found */ - Error(ERR_EXIT_SOUND_SERVER, - "cannot set audio format of /dev/dsp -- no sounds"); - - /* try if we can use stereo sound */ - afmt->stereo = TRUE; - if (ioctl(audio.device_fd, SNDCTL_DSP_STEREO, &stereo) < 0) - afmt->stereo = FALSE; - - 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"); + /* finally play the sound fragment */ + write(audio.device_fd, playing_buffer, sample_size); - /* 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"); + return sample_size; } -#endif /* AUDIO_LINUX_IOCTL */ +#endif /* !AUDIO_STREAMING_DSP */ -#if defined(PLATFORM_NETBSD) -static void InitAudioDevice_NetBSD(struct AudioFormatInfo *afmt) +void Mixer_Main() { - audio_info_t a_info; - boolean stereo = TRUE; + SoundControl snd_ctrl; + fd_set mixer_fdset; - 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; + close(audio.mixer_pipe[1]); /* no writing into pipe needed */ - afmt->format = AUDIO_FORMAT_U8; - afmt->stereo = TRUE; + Mixer_InitChannels(); - if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0) +#if defined(PLATFORM_HPUX) + InitAudioDevice(&afmt); +#endif + + FD_ZERO(&mixer_fdset); + FD_SET(audio.mixer_pipe[0], &mixer_fdset); + + while(1) /* wait for sound playing commands from client */ { - /* try to disable stereo */ - a_info.play.channels = 1; + struct timeval delay = { 0, 0 }; - afmt->stereo = FALSE; + 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; - 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 */ + ReadSoundControlFromMainProcess(&snd_ctrl); -#if defined(PLATFORM_HPUX) -static void InitAudioDevice_HPUX(struct AudioFormatInfo *afmt) -{ - struct audio_describe ainfo; - int audio_ctl; + HandleSoundRequest(snd_ctrl); - audio_ctl = open("/dev/audioCtl", O_WRONLY | O_NDELAY); - if (audio_ctl == -1) - Error(ERR_EXIT_SOUND_SERVER, "cannot open /dev/audioCtl -- no sounds"); +#if defined(AUDIO_STREAMING_DSP) - if (ioctl(audio_ctl, AUDIO_DESCRIBE, &ainfo) == -1) - Error(ERR_EXIT_SOUND_SERVER, "no audio info -- no sounds"); + while (mixer_active_channels && + select(audio.mixer_pipe[0] + 1, + &mixer_fdset, NULL, NULL, &delay) < 1) + { + FD_SET(audio.mixer_pipe[0], &mixer_fdset); - if (ioctl(audio_ctl, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_ULAW) == -1) - Error(ERR_EXIT_SOUND_SERVER, "ulaw audio not available -- no sounds"); + Mixer_Main_DSP(); + } - ioctl(audio_ctl, AUDIO_SET_CHANNELS, 1); - ioctl(audio_ctl, AUDIO_SET_SAMPLE_RATE, 8000); +#else /* !AUDIO_STREAMING_DSP */ - afmt->format = AUDIO_FORMAT_U8; - afmt->stereo = FALSE; - afmt->sample_rate = 8000; + if (!snd_ctrl.active || IS_LOOP(snd_ctrl) || + (audio.device_fd = OpenAudioDevice(audio.device_name)) < 0) + continue; - close(audio_ctl); -} -#endif /* PLATFORM_HPUX */ + InitAudioDevice(&afmt); -#if defined(PLATFORM_UNIX) -static void InitAudioDevice(struct AudioFormatInfo *afmt) -{ -#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 + 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_UNIX */ +#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"... :) */ @@ -1455,7 +1485,7 @@ static int ulaw_to_linear(unsigned char ulawbyte) 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 */ @@ -1468,12 +1498,15 @@ static int ulaw_to_linear(unsigned char ulawbyte) static SoundInfo *Load_WAV(char *filename) { SoundInfo *snd_info; -#if !defined(TARGET_SDL) && !defined(PLATFORM_MSDOS) +#if defined(AUDIO_UNIX_NATIVE) + struct SoundHeader_WAV header; +#if 0 byte sound_header_buffer[WAV_HEADER_SIZE]; + int i; +#endif char chunk_name[CHUNK_ID_LEN + 1]; int chunk_size; FILE *file; - int i; #endif if (!audio.sound_available) @@ -1494,6 +1527,8 @@ static SoundInfo *Load_WAV(char *filename) 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) @@ -1503,7 +1538,9 @@ static SoundInfo *Load_WAV(char *filename) return NULL; } -#else /* PLATFORM_UNIX */ + snd_info->data_len = ((SAMPLE *)snd_info->data_ptr)->len; + +#else /* AUDIO_UNIX_NATIVE */ if ((file = fopen(filename, MODE_READ)) == NULL) { @@ -1513,7 +1550,7 @@ static SoundInfo *Load_WAV(char *filename) } /* read chunk id "RIFF" */ - getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN); + getFileChunkLE(file, chunk_name, &chunk_size); if (strcmp(chunk_name, "RIFF") != 0) { Error(ERR_WARN, "missing 'RIFF' chunk of sound file '%s'", filename); @@ -1523,7 +1560,7 @@ static SoundInfo *Load_WAV(char *filename) } /* read "RIFF" type id "WAVE" */ - getFileChunk(file, chunk_name, NULL, BYTE_ORDER_LITTLE_ENDIAN); + getFileChunkLE(file, chunk_name, NULL); if (strcmp(chunk_name, "WAVE") != 0) { Error(ERR_WARN, "missing 'WAVE' type ID of sound file '%s'", filename); @@ -1532,16 +1569,69 @@ static SoundInfo *Load_WAV(char *filename) return NULL; } - while (getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN)) + while (getFileChunkLE(file, chunk_name, &chunk_size)) { 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) + { + Error(ERR_WARN, "sound file '%s': chunk 'fmt ' too short", filename); + fclose(file); + free(snd_info); + return NULL; + } + + header.compression_code = getFile16BitLE(file); + header.num_channels = getFile16BitLE(file); + header.sample_rate = getFile32BitLE(file); + header.bytes_per_second = getFile32BitLE(file); + header.block_align = getFile16BitLE(file); + header.bits_per_sample = getFile16BitLE(file); if (chunk_size > WAV_HEADER_SIZE) ReadUnusedBytesFromFile(file, chunk_size - WAV_HEADER_SIZE); + + if (header.compression_code != 1) + { + Error(ERR_WARN, "sound file '%s': compression code %d not supported", + filename, header.compression_code); + fclose(file); + free(snd_info); + return NULL; + } + + if (header.num_channels != 1) + { + Error(ERR_WARN, "sound file '%s': number of %d channels not supported", + filename, header.num_channels); + fclose(file); + free(snd_info); + return NULL; + } + + if (header.bits_per_sample != 8 && header.bits_per_sample != 16) + { + Error(ERR_WARN, "sound file '%s': %d bits per sample not supported", + filename, header.bits_per_sample); + fclose(file); + free(snd_info); + return NULL; + } + + /* warn, but accept wrong sample rate (may be only slightly different) */ + if (header.sample_rate != DEFAULT_AUDIO_SAMPLE_RATE) + Error(ERR_WARN, "sound file '%s': wrong sample rate %d instead of %d", + filename, header.sample_rate, DEFAULT_AUDIO_SAMPLE_RATE); + +#if 0 + printf("WAV file: '%s'\n", filename); + printf(" Compression code: %d'\n", header.compression_code); + printf(" Number of channels: %d'\n", header.num_channels); + printf(" Sample rate: %ld'\n", header.sample_rate); + printf(" Average bytes per second: %ld'\n", header.bytes_per_second); + printf(" Block align: %d'\n", header.block_align); + printf(" Significant bits per sample: %d'\n", header.bits_per_sample); +#endif } else if (strcmp(chunk_name, "data") == 0) { @@ -1576,9 +1666,15 @@ static SoundInfo *Load_WAV(char *filename) return NULL; } - snd_info->format = AUDIO_FORMAT_U8; + if (header.bits_per_sample == 8) + snd_info->format = AUDIO_FORMAT_U8; + else /* header.bits_per_sample == 16 */ + { + snd_info->format = AUDIO_FORMAT_S16; + snd_info->data_len /= 2; /* correct number of samples */ + } -#endif /* PLATFORM_UNIX */ +#endif /* AUDIO_UNIX_NATIVE */ snd_info->type = SND_TYPE_WAV; snd_info->source_filename = getStringCopy(filename); @@ -1654,6 +1750,10 @@ static void LoadCustomSound(SoundInfo **snd_info, char *basename) { char *filename = getCustomSoundFilename(basename); +#if 0 + printf("GOT CUSTOM SOUND FILE '%s'\n", filename); +#endif + if (strcmp(basename, SND_FILE_UNDEFINED) == 0) { deleteSoundEntry(snd_info); @@ -1724,6 +1824,7 @@ static MusicInfo *Load_MOD(char *filename) void LoadCustomMusic(void) { + static boolean draw_init_text = TRUE; /* only draw at startup */ char *music_directory = getCustomMusicDirectory(); DIR *dir; struct dirent *dir_entry; @@ -1738,12 +1839,18 @@ void LoadCustomMusic(void) return; } + if (draw_init_text) + DrawInitText("Loading music:", 120, FC_GREEN); + while ((dir_entry = readdir(dir)) != NULL) /* loop until last dir entry */ { char *basename = dir_entry->d_name; char *filename = getPath2(music_directory, basename); MusicInfo *mus_info = NULL; + if (draw_init_text) + DrawInitText(basename, 150, FC_YELLOW); + if (FileIsSound(basename)) mus_info = Load_WAV(filename); else if (FileIsMusic(basename)) @@ -1761,6 +1868,8 @@ void LoadCustomMusic(void) closedir(dir); + draw_init_text = FALSE; + if (num_music == 0) Error(ERR_WARN, "cannot find any valid music files in directory '%s'", music_directory); @@ -1771,105 +1880,63 @@ void PlayMusic(int nr) if (!audio.music_available) return; -#if defined(TARGET_SDL) - - nr = nr % num_music; - - if (Music[nr]->type == MUS_TYPE_MOD) - { - Mix_PlayMusic(Music[nr]->data_ptr, -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, Music[nr]->data_ptr, -1); - } - -#else - PlaySoundMusic(nr); - -#endif } void PlaySound(int nr) { - PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, SND_CTRL_PLAY_SOUND); + PlaySoundExt(nr, SOUND_MAX_VOLUME, SOUND_MIDDLE, SND_CTRL_PLAY_SOUND); } -void PlaySoundStereo(int nr, int stereo) +void PlaySoundStereo(int nr, int stereo_position) { - PlaySoundExt(nr, PSND_MAX_VOLUME, stereo, SND_CTRL_PLAY_SOUND); + PlaySoundExt(nr, SOUND_MAX_VOLUME, stereo_position, SND_CTRL_PLAY_SOUND); } void PlaySoundLoop(int nr) { - PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, SND_CTRL_PLAY_LOOP); + PlaySoundExt(nr, SOUND_MAX_VOLUME, SOUND_MIDDLE, SND_CTRL_PLAY_LOOP); } void PlaySoundMusic(int nr) { - PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_MIDDLE, SND_CTRL_PLAY_MUSIC); + PlaySoundExt(nr, SOUND_MAX_VOLUME, SOUND_MIDDLE, SND_CTRL_PLAY_MUSIC); } -void PlaySoundExt(int nr, int volume, int stereo, int state) +void PlaySoundExt(int nr, int volume, int stereo_position, int state) { - struct SoundControl snd_ctrl; + SoundControl snd_ctrl; if (!audio.sound_available || !audio.sound_enabled || audio.sound_deactivated) return; - if (volume < PSND_MIN_VOLUME) - volume = PSND_MIN_VOLUME; - else if (volume > PSND_MAX_VOLUME) - volume = PSND_MAX_VOLUME; + if (volume < SOUND_MIN_VOLUME) + volume = SOUND_MIN_VOLUME; + else if (volume > SOUND_MAX_VOLUME) + volume = SOUND_MAX_VOLUME; - if (stereo < PSND_MAX_LEFT) - stereo = PSND_MAX_LEFT; - else if (stereo > PSND_MAX_RIGHT) - stereo = PSND_MAX_RIGHT; + if (stereo_position < SOUND_MAX_LEFT) + stereo_position = SOUND_MAX_LEFT; + else if (stereo_position > SOUND_MAX_RIGHT) + stereo_position = SOUND_MAX_RIGHT; snd_ctrl.active = TRUE; - snd_ctrl.nr = nr; + snd_ctrl.nr = nr; snd_ctrl.volume = volume; - snd_ctrl.stereo = stereo; - snd_ctrl.state = state; - -#if defined(TARGET_SDL) - if (Sound[nr]) - { - Mix_Volume(-1, SOUND_MAX_VOLUME); - Mix_PlayChannel(-1, Sound[nr]->data_ptr, (state & SND_CTRL_LOOP ? -1 : 0)); - } -#elif defined(PLATFORM_UNIX) - if (audio.soundserver_pid == 0) /* we are child process */ - return; + snd_ctrl.stereo_position = stereo_position; + 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) { - if (!audio.sound_available) + if (!audio.music_available) return; -#if defined(TARGET_SDL) - Mix_FadeOutMusic(SOUND_FADING_INTERVAL); - Mix_FadeOutChannel(audio.music_channel, SOUND_FADING_INTERVAL); -#else StopSoundExt(-1, SND_CTRL_FADE_MUSIC); -#endif } void FadeSound(int nr) @@ -1885,15 +1952,10 @@ void FadeSounds() void StopMusic(void) { -#if defined(TARGET_SDL) - if (!audio.sound_available) + if (!audio.music_available) return; - Mix_HaltMusic(); - Mix_HaltChannel(audio.music_channel); -#else StopSoundExt(-1, SND_CTRL_STOP_MUSIC); -#endif } void StopSound(int nr) @@ -1909,56 +1971,16 @@ void StopSounds() void StopSoundExt(int nr, int state) { - struct SoundControl snd_ctrl; + SoundControl snd_ctrl; if (!audio.sound_available) return; snd_ctrl.active = FALSE; - snd_ctrl.nr = nr; - snd_ctrl.state = state; - -#if defined(TARGET_SDL) - - if (state & SND_CTRL_FADE) - { - int i; - - /* - for (i=audio.first_sound_channel; ifullpath, - 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; - } -#endif - + ReloadCustomSounds(); #endif } -void InitReloadSounds(char *set_name) -{ - InitReloadSoundsOrMusic(set_name, SND_CTRL_RELOAD_SOUNDS); -} - void InitReloadMusic(char *set_name) { - InitReloadSoundsOrMusic(set_name, SND_CTRL_RELOAD_MUSIC); + if (!audio.music_available) + return; + +#if defined(AUDIO_UNIX_NATIVE) + WriteReloadInfoToPipe(set_name, SND_CTRL_RELOAD_MUSIC); +#else + ReloadCustomMusic(); +#endif } void FreeSound(void *ptr) @@ -2190,7 +2184,7 @@ void FreeSound(void *ptr) Mix_FreeChunk(sound->data_ptr); #elif defined(TARGET_ALLEGRO) destroy_sample(sound->data_ptr); -#else /* PLATFORM_UNIX */ +#else /* AUDIO_UNIX_NATIVE */ free(sound->data_ptr); #endif } @@ -2215,7 +2209,7 @@ void FreeMusic(MusicInfo *music) Mix_FreeChunk(music->data_ptr); #elif defined(TARGET_ALLEGRO) destroy_sample(music->data_ptr); -#else /* PLATFORM_UNIX */ +#else /* AUDIO_UNIX_NATIVE */ free(music->data_ptr); #endif } @@ -2230,8 +2224,10 @@ void FreeAllSounds() if (Sound == NULL) return; +#if 0 printf("%s: FREEING SOUNDS ...\n", - audio.soundserver_pid == 0 ? "CHILD" : "PARENT"); + IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT"); +#endif for(i=0; i