X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsound.c;h=b29d5dd62616a3dc9b1f245b2cb83707b9cf6397;hb=cb5fe20318d9b2c18cb82bc1f7197150cfba7bc0;hp=658a67efbdd45ab80296d67f767a65d80053fe69;hpb=8ae353be22bec6faaa68b978e188f5c15120e44b;p=rocksndiamonds.git diff --git a/src/libgame/sound.c b/src/libgame/sound.c index 658a67ef..b29d5dd6 100644 --- a/src/libgame/sound.c +++ b/src/libgame/sound.c @@ -17,15 +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]) -#define IS_PARENT_PROCESS(pid) ((pid) > 0) -#define IS_CHILD_PROCESS(pid) ((pid) == 0) +#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 { @@ -47,6 +168,7 @@ 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]; /* ========================================================================= */ @@ -483,34 +605,99 @@ void Mixer_InitChannels() mixer_active_channels = 0; } -static void Mixer_PlayChannel(int channel) +static void Mixer_ResetChannelExpiration(int channel) { - /* start with inactive channel in case something goes wrong */ - mixer[channel].active = FALSE; + mixer[channel].playing_starttime = Counter(); - if (mixer[channel].type != MUS_TYPE_WAV) - return; +#if defined(TARGET_SDL) + if (IS_LOOP(mixer[channel]) && !IS_MUSIC(mixer[channel])) + Mix_ExpireChannel(channel, SOUND_LOOP_EXPIRATION_TIME); +#endif +} - mixer[channel].playingpos = 0; - mixer[channel].playingtime = 0; +static boolean Mixer_ChannelExpired(int channel) +{ + if (!mixer[channel].active) + return TRUE; + + if (IS_LOOP(mixer[channel]) && !IS_MUSIC(mixer[channel]) && + DelayReached(&mixer[channel].playing_starttime, + SOUND_LOOP_EXPIRATION_TIME)) + return TRUE; #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) + + 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; + 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_set_volume(mixer[channel].voice, mixer[channel].volume); - voice_set_pan(mixer[channel].voice, mixer[channel].stereo); 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; + 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++; } @@ -532,18 +719,12 @@ static void Mixer_PlayMusicChannel() static void Mixer_StopChannel(int channel) { -#if 0 -#if defined(TARGET_SDL) - printf("----------> %d [%d]\n", Mix_Playing(channel), Mix_Playing(0)); -#endif -#endif - - if (!mixer_active_channels || !mixer[channel].active) + if (!mixer[channel].active) return; #if defined(TARGET_SDL) Mix_HaltChannel(channel); -#elif defined(PLATFORM_MSDOS) +#elif defined(TARGET_ALLEGRO) voice_set_volume(mixer[channel].voice, 0); deallocate_voice(mixer[channel].voice); #endif @@ -563,23 +744,16 @@ static void Mixer_StopMusicChannel() static void Mixer_FadeChannel(int channel) { - if (!mixer_active_channels || !mixer[channel].active) + if (!mixer[channel].active) return; mixer[channel].state |= SND_CTRL_FADE; #if defined(TARGET_SDL) - -#if 1 Mix_FadeOutChannel(channel, SOUND_FADING_INTERVAL); -#else - Mix_ExpireChannel(channel, SOUND_FADING_INTERVAL); -#endif - -#elif defined(PLATFORM_MSDOS) +#elif defined(TARGET_ALLEGRO) if (voice_check(mixer[channel].voice)) voice_ramp_volume(mixer[channel].voice, SOUND_FADING_INTERVAL, 0); - mixer[channel].state &= ~SND_CTRL_IS_LOOP; #endif } @@ -592,6 +766,24 @@ static void Mixer_FadeMusicChannel() #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 +} + static void Mixer_InsertSound(SoundControl snd_ctrl) { SoundInfo *snd_info; @@ -601,6 +793,10 @@ static void Mixer_InsertSound(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) @@ -619,69 +815,50 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) /* 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; } - if (mixer_active_channels == audio.num_channels) - { - for (i=0; i 0 && IS_LOOP(snd_ctrl)) { - int longest = 0, longest_nr = audio.first_sound_channel; - - for (i=audio.first_sound_channel; i longest) + if (mixer[i].active && mixer[i].nr == snd_ctrl.nr) { - longest = actual; - longest_nr = i; - } - } +#if 0 + printf("RESETTING EXPIRATION FOR SOUND %d\n", snd_ctrl.nr); +#endif - Mixer_StopChannel(longest_nr); - } + if (IS_FADING(mixer[i])) + Mixer_UnFadeChannel(i); - /* 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) { + 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) { @@ -714,7 +893,34 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) Mixer_StopChannel(longest_nr); } - /* add new sound to mixer */ + /* 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 the new sound to the mixer */ for(i=0; i> 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 + mixer[i].stereo]; - int right_volume= stereo_volume[middle_pos - mixer[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]; @@ -1017,10 +1204,10 @@ static void Mixer_Main_DSP() } /* delete completed sound entries from the mixer */ - if (mixer[i].playingpos >= 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_StopChannel(i); } @@ -1081,20 +1268,19 @@ static int Mixer_Main_SimpleAudio(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, premix_first_buffer); /* adjust volume of actual sound sample */ - if (mixer[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 @@ -1104,7 +1290,7 @@ static int Mixer_Main_SimpleAudio(SoundControl snd_ctrl) #endif /* delete completed sound entries from the mixer */ - if (mixer[i].playingpos >= mixer[i].data_len) + if (mixer[i].playing_pos >= mixer[i].data_len) Mixer_StopChannel(i); for(i=0; i 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) { @@ -1424,7 +1666,13 @@ 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 /* AUDIO_UNIX_NATIVE */ @@ -1502,6 +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); @@ -1572,6 +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; @@ -1586,12 +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)) @@ -1609,6 +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); @@ -1624,25 +1885,25 @@ void PlayMusic(int nr) 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) { SoundControl snd_ctrl; @@ -1651,28 +1912,28 @@ void PlaySoundExt(int nr, int volume, int stereo, int state) 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; + snd_ctrl.stereo_position = stereo_position; + snd_ctrl.state = state; HandleSoundRequest(snd_ctrl); } void FadeMusic(void) { - if (!audio.sound_available) + if (!audio.music_available) return; StopSoundExt(-1, SND_CTRL_FADE_MUSIC); @@ -1716,8 +1977,8 @@ void StopSoundExt(int nr, int state) return; snd_ctrl.active = FALSE; - snd_ctrl.nr = nr; - snd_ctrl.state = state; + snd_ctrl.nr = nr; + snd_ctrl.state = state; HandleSoundRequest(snd_ctrl); } @@ -1803,6 +2064,10 @@ static void LoadSoundsInfo() struct SetupFileList *setup_file_list; int i; +#if 0 + printf("GOT CUSTOM SOUND CONFIG FILE '%s'\n", filename); +#endif + /* always start with reliable default values */ for (i=0; i