X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsound.c;h=ceeee1477b532295520d29efda50b861118f410c;hb=77570cca460afce38d688221214f93f0c6d0a8c9;hp=ac814e90f30a6fbcae9e2daea299796a9285037f;hpb=71a1616f11627ab005c19fc6fc06ba23f6b4b633;p=rocksndiamonds.git diff --git a/src/libgame/sound.c b/src/libgame/sound.c index ac814e90..ceeee147 100644 --- a/src/libgame/sound.c +++ b/src/libgame/sound.c @@ -24,6 +24,9 @@ #include "setup.h" +#define IS_PARENT_PROCESS(pid) ((pid) > 0) +#define IS_CHILD_PROCESS(pid) ((pid) == 0) + struct ListNode { char *key; @@ -49,24 +52,30 @@ static int num_sounds = 0, num_music = 0; /* ========================================================================= */ /* THE STUFF BELOW IS ONLY USED BY THE SOUND SERVER CHILD PROCESS */ -static struct AudioFormatInfo afmt; static struct SoundControl mixer[NUM_MIXER_CHANNELS]; static int mixer_active_channels = 0; -/* forward declaration of internal functions */ -static void InitAudioDevice(struct AudioFormatInfo *); -static void Mixer_Main(void); +#if defined(AUDIO_UNIX_NATIVE) +static struct AudioFormatInfo afmt; -#if defined(PLATFORM_UNIX) && !defined(AUDIO_STREAMING_DSP) +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 +#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; @@ -123,7 +132,6 @@ static boolean TestAudioDevices(void) return TRUE; } -#if !defined(TARGET_SDL) static boolean ForkAudioProcess(void) { if (pipe(audio.mixer_pipe) < 0) @@ -138,19 +146,13 @@ static boolean ForkAudioProcess(void) return FALSE; } - if (audio.mixer_pid == 0) /* we are child process */ - { - Mixer_Main(); - - /* never reached */ - exit(0); - } - else /* we are parent */ - close(audio.mixer_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) { @@ -175,16 +177,177 @@ void UnixCloseAudio(void) if (audio.device_fd) close(audio.device_fd); - if (audio.mixer_pid > 0) /* we are parent process */ + if (IS_PARENT_PROCESS(audio.mixer_pid)) kill(audio.mixer_pid, SIGTERM); } -static void WriteSoundControlToPipe(struct SoundControl snd_ctrl) + +/* ------------------------------------------------------------------------- */ +/* functions for platform specific audio device initialization */ +/* ------------------------------------------------------------------------- */ + +#if defined(AUDIO_LINUX_IOCTL) +static void InitAudioDevice_Linux(struct AudioFormatInfo *afmt) { - if (audio.mixer_pid == 0) /* we are child process */ + /* "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(struct SoundControl)) < 0) + 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; @@ -192,26 +355,26 @@ static void WriteSoundControlToPipe(struct SoundControl snd_ctrl) } } -static void ReadSoundControlFromPipe(struct SoundControl *snd_ctrl) +static void ReadSoundControlFromMainProcess(SoundControl *snd_ctrl) { - if (audio.mixer_pid != 0) /* we are parent process */ + if (IS_PARENT_PROCESS(audio.mixer_pid)) return; - if (read(audio.mixer_pipe[0], snd_ctrl, sizeof(struct SoundControl)) - != sizeof(struct SoundControl)) + 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 (audio.mixer_pid == 0) /* we are child process */ + if (IS_CHILD_PROCESS(audio.mixer_pid)) return; if (leveldir_current == NULL) /* should never happen */ @@ -248,9 +411,9 @@ 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; @@ -259,7 +422,7 @@ 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)); @@ -273,7 +436,7 @@ static void ReadReloadInfoFromPipe(struct SoundControl snd_ctrl) free(ti->fullpath); if (read(audio.mixer_pipe[0], set_name, - snd_ctrl.data_len) != snd_ctrl.data_len || + 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, @@ -298,12 +461,18 @@ static void ReadReloadInfoFromPipe(struct SoundControl snd_ctrl) 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 */ + +#endif /* AUDIO_UNIX_NATIVE */ + + +/* ------------------------------------------------------------------------- */ +/* mixer functions */ +/* ------------------------------------------------------------------------- */ void Mixer_InitChannels() { @@ -316,56 +485,125 @@ void Mixer_InitChannels() static void Mixer_PlayChannel(int channel) { -#if defined(PLATFORM_MSDOS) - mixer[channel].voice = allocate_voice((SAMPLE *)mixer[channel].data_ptr); + /* 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, snd_ctrl.volume); - voice_set_pan(mixer[channel].voice, snd_ctrl.stereo); + 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) + { + /* 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 defined(PLATFORM_MSDOS) +#if 0 +#if defined(TARGET_SDL) + printf("----------> %d [%d]\n", Mix_Playing(channel), Mix_Playing(0)); +#endif +#endif + + 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 + + mixer[channel].active = FALSE; + mixer_active_channels--; +} + +static void Mixer_StopMusicChannel() +{ + Mixer_StopChannel(audio.music_channel); + +#if defined(TARGET_SDL) + Mix_HaltMusic(); +#endif } static void Mixer_FadeChannel(int channel) { + if (!mixer[channel].active) + return; + mixer[channel].state |= SND_CTRL_FADE; -#if defined(PLATFORM_MSDOS) +#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, 1000, 0); - mixer[channel].state &= ~SND_CTRL_IS_LOOP; + voice_ramp_volume(mixer[channel].voice, SOUND_FADING_INTERVAL, 0); #endif } -static void Mixer_RemoveSound(int channel) +static void Mixer_FadeMusicChannel() { - if (!mixer_active_channels || !mixer[channel].active) - return; + Mixer_FadeChannel(audio.music_channel); -#if 0 - printf("REMOVING MIXER SOUND %d\n", channel); +#if defined(TARGET_SDL) + Mix_FadeOutMusic(SOUND_FADING_INTERVAL); #endif +} - Mixer_StopChannel(channel); +static void Mixer_UnFadeChannel(int channel) +{ + if (!mixer[channel].active || !IS_FADING(mixer[channel])) + return; - mixer[channel].active = FALSE; - mixer_active_channels--; + 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 } -static void Mixer_InsertSound(struct SoundControl snd_ctrl) +static void Mixer_InsertSound(SoundControl snd_ctrl) { SoundInfo *snd_info; int i, k; @@ -374,6 +612,10 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) 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) @@ -381,53 +623,21 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) 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", mixer_active_channels); -#endif - - if (mixer_active_channels == audio.num_channels) - { - for (i=0; itype; + snd_ctrl.format = snd_info->format; + snd_ctrl.data_ptr = snd_info->data_ptr; + snd_ctrl.data_len = snd_info->data_len; - Mixer_RemoveSound(i); - } - } - } - - /* if mixer is full, remove oldest sound */ - if (mixer_active_channels == audio.num_channels) + /* play music samples on a dedicated music channel */ + if (IS_MUSIC(snd_ctrl)) { - int longest = 0, longest_nr = audio.first_sound_channel; - - for (i=audio.first_sound_channel; i longest) - { - longest = actual; - longest_nr = i; - } - } - - Mixer_RemoveSound(longest_nr); + return; } /* check if sound is already being played (and how often) */ @@ -439,18 +649,8 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) if (k >= 1 && IS_LOOP(snd_ctrl)) { for(i=audio.first_sound_channel; i= 2) { + 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; @@ -480,7 +683,38 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) } } - Mixer_RemoveSound(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 mixer */ @@ -497,19 +731,18 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) if ((i == audio.music_channel && IS_MUSIC(snd_ctrl)) || (i != audio.music_channel && !mixer[i].active)) { - snd_ctrl.data_ptr = snd_info->data_ptr; - snd_ctrl.data_len = snd_info->data_len; - snd_ctrl.format = snd_info->format; - - snd_ctrl.playingpos = 0; - snd_ctrl.playingtime = 0; +#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) @@ -517,18 +750,12 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) printf("THIS SHOULD NEVER HAPPEN! [adding music twice]\n"); #if 1 - Mixer_RemoveSound(i); + Mixer_StopChannel(i); #endif } #endif mixer[i] = snd_ctrl; - mixer_active_channels++; - -#if 0 - printf("NEW SOUND %d ADDED TO MIXER\n", snd_ctrl.nr); -#endif - Mixer_PlayChannel(i); break; @@ -536,29 +763,45 @@ static void Mixer_InsertSound(struct SoundControl snd_ctrl) } } -static void HandleSoundRequest(struct SoundControl snd_ctrl) +static void HandleSoundRequest(SoundControl snd_ctrl) { int i; -#if defined(PLATFORM_MSDOS) +#if defined(AUDIO_UNIX_NATIVE) + if (IS_PARENT_PROCESS(audio.mixer_pid)) + { + SendSoundControlToMixerProcess(&snd_ctrl); + return; + } +#elif defined(TARGET_SDL) + for (i=0; imajor, + link_version->minor, + link_version->patch); +#endif + if (!audio.sound_available) return; -#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL) +#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) { @@ -692,9 +946,9 @@ static void Mixer_Main_DSP() /* pointer, lenght and actual playing position of sound sample */ sample_ptr = mixer[i].data_ptr; sample_len = mixer[i].data_len; - sample_pos = mixer[i].playingpos; + sample_pos = mixer[i].playing_pos; sample_size = MIN(max_sample_size, sample_len - sample_pos); - mixer[i].playingpos += sample_size; + mixer[i].playing_pos += sample_size; /* copy original sample to first mixing buffer */ CopySampleToMixingBuffer(&mixer[i], sample_pos, sample_size, @@ -717,7 +971,7 @@ static void Mixer_Main_DSP() premix_first_buffer[sample_size + j] = ((short *)sample_ptr)[j]; - mixer[i].playingpos = restarted_sample_size; + mixer[i].playing_pos = restarted_sample_size; sample_size += restarted_sample_size; } } @@ -738,8 +992,8 @@ static void Mixer_Main_DSP() if (stereo) { int middle_pos = PSND_MAX_LEFT2RIGHT / 2; - int left_volume = stereo_volume[middle_pos + mixer[i].stereo]; - int right_volume= stereo_volume[middle_pos - mixer[i].stereo]; + 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= mixer[i].data_len) + if (mixer[i].playing_pos >= mixer[i].data_len) { if (IS_LOOP(mixer[i])) - mixer[i].playingpos = 0; + mixer[i].playing_pos = 0; else - Mixer_RemoveSound(i); + Mixer_StopChannel(i); } else if (mixer[i].volume <= SOUND_FADING_VOLUME_THRESHOLD) - Mixer_RemoveSound(i); + Mixer_StopChannel(i); } /* prepare final playing buffer according to system audio format */ @@ -809,7 +1063,7 @@ static void Mixer_Main_DSP() #else /* !AUDIO_STREAMING_DSP */ -static int Mixer_Main_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]; @@ -825,9 +1079,9 @@ static int Mixer_Main_SimpleAudio(struct SoundControl snd_ctrl) /* pointer, lenght and actual playing position of sound sample */ sample_ptr = mixer[i].data_ptr; sample_len = mixer[i].data_len; - sample_pos = mixer[i].playingpos; + sample_pos = mixer[i].playing_pos; sample_size = MIN(max_sample_size, sample_len - sample_pos); - mixer[i].playingpos += sample_size; + mixer[i].playing_pos += sample_size; /* copy original sample to first mixing buffer */ CopySampleToMixingBuffer(&mixer[i], sample_pos, sample_size, @@ -848,8 +1102,8 @@ static int Mixer_Main_SimpleAudio(struct SoundControl snd_ctrl) #endif /* delete completed sound entries from the mixer */ - if (mixer[i].playingpos >= mixer[i].data_len) - Mixer_RemoveSound(i); + if (mixer[i].playing_pos >= mixer[i].data_len) + Mixer_StopChannel(i); for(i=0; i> 8) ^ 0x80; @@ -863,7 +1117,7 @@ static int Mixer_Main_SimpleAudio(struct SoundControl snd_ctrl) void Mixer_Main() { - struct SoundControl snd_ctrl; + SoundControl snd_ctrl; fd_set mixer_fdset; close(audio.mixer_pipe[1]); /* no writing into pipe needed */ @@ -886,7 +1140,7 @@ void Mixer_Main() if (!FD_ISSET(audio.mixer_pipe[0], &mixer_fdset)) continue; - ReadSoundControlFromPipe(&snd_ctrl); + ReadSoundControlFromMainProcess(&snd_ctrl); HandleSoundRequest(snd_ctrl); @@ -935,167 +1189,10 @@ void Mixer_Main() #endif /* !AUDIO_STREAMING_DSP */ } } -#endif /* PLATFORM_UNIX */ - - -/* ------------------------------------------------------------------------- */ -/* platform dependant audio initialization code */ -/* ------------------------------------------------------------------------- */ - -#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 */ - -#if defined(PLATFORM_UNIX) -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; +#endif /* AUDIO_UNIX_NATIVE */ -#if defined(AUDIO_LINUX_IOCTL) - InitAudioDevice_Linux(afmt); -#elif defined(PLATFORM_NETBSD) - InitAudioDevice_NetBSD(afmt); -#elif defined(PLATFORM_HPUX) - InitAudioDevice_HPUX(afmt); -#else - /* generic /dev/audio stuff might be placed here */ -#endif -} -#endif /* PLATFORM_UNIX */ -#if defined(PLATFORM_UNIX) && !defined(AUDIO_STREAMING_DSP) +#if defined(AUDIO_UNIX_NATIVE) && !defined(AUDIO_STREAMING_DSP) /* these two are stolen from "sox"... :) */ @@ -1200,7 +1297,7 @@ 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 */ @@ -1239,6 +1336,8 @@ 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) @@ -1248,7 +1347,9 @@ 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) { @@ -1323,7 +1424,7 @@ static SoundInfo *Load_WAV(char *filename) snd_info->format = AUDIO_FORMAT_U8; -#endif /* PLATFORM_UNIX */ +#endif /* AUDIO_UNIX_NATIVE */ snd_info->type = SND_TYPE_WAV; snd_info->source_filename = getStringCopy(filename); @@ -1516,26 +1617,7 @@ 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) @@ -1543,9 +1625,9 @@ void PlaySound(int nr) 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, SND_CTRL_PLAY_SOUND); + PlaySoundExt(nr, PSND_MAX_VOLUME, stereo_position, SND_CTRL_PLAY_SOUND); } void PlaySoundLoop(int nr) @@ -1558,9 +1640,9 @@ void PlaySoundMusic(int nr) PlaySoundExt(nr, PSND_MAX_VOLUME, PSND_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 || @@ -1572,45 +1654,26 @@ void PlaySoundExt(int nr, int volume, int stereo, int state) 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.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) - - WriteSoundControlToPipe(snd_ctrl); - -#elif defined(PLATFORM_MSDOS) + snd_ctrl.stereo_position = stereo_position; + snd_ctrl.state = state; HandleSoundRequest(snd_ctrl); - -#endif } 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) @@ -1626,15 +1689,10 @@ 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) @@ -1650,51 +1708,16 @@ 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; idata_ptr); #elif defined(TARGET_ALLEGRO) destroy_sample(sound->data_ptr); -#else /* PLATFORM_UNIX */ +#else /* AUDIO_UNIX_NATIVE */ free(sound->data_ptr); #endif } @@ -1910,7 +1933,7 @@ 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 } @@ -1926,7 +1949,7 @@ void FreeAllSounds() return; printf("%s: FREEING SOUNDS ...\n", - audio.mixer_pid == 0 ? "CHILD" : "PARENT"); + IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT"); for(i=0; i