X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsound.c;h=a242713161fd2dd111f19257c8078a76f414ccdf;hb=87f531efe267aa3d6a27cc3a68c68c1a4df7b18b;hp=cb7dc63d92f96da122b9b2f22c22725ee912b324;hpb=e4467a70cdf808b36d10965bdf6316f0cbc35214;p=rocksndiamonds.git diff --git a/src/libgame/sound.c b/src/libgame/sound.c index cb7dc63d..a2427131 100644 --- a/src/libgame/sound.c +++ b/src/libgame/sound.c @@ -1,7 +1,7 @@ /*********************************************************** * Artsoft Retro-Game Library * *----------------------------------------------------------* -* (c) 1994-2001 Artsoft Entertainment * +* (c) 1994-2002 Artsoft Entertainment * * Holger Schemel * * Detmolder Strasse 189 * * 33604 Bielefeld * @@ -11,21 +11,146 @@ * sound.c * ***********************************************************/ -#include +#include #include +#include #include #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_SOUND_DSP "/dev/sound/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 SAME_SOUND_NR(x,y) ((x).nr == (y).nr) +#define SAME_SOUND_DATA(x,y) ((x).data_ptr == (y).data_ptr) + +#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; -#define IS_PARENT_PROCESS(pid) ((pid) > 0) -#define IS_CHILD_PROCESS(pid) ((pid) == 0) + 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 +172,7 @@ 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]; /* ========================================================================= */ @@ -109,6 +235,7 @@ static boolean TestAudioDevices(void) static char *audio_device_name[] = { DEVICENAME_DSP, + DEVICENAME_SOUND_DSP, DEVICENAME_AUDIO }; int audio_device_fd = -1; @@ -146,6 +273,12 @@ static boolean ForkAudioProcess(void) return FALSE; } +#if 0 + printf("PID: %d [%s]\n", getpid(), + (IS_CHILD_PROCESS(audio.mixer_pid) ? "child" : "parent")); + Delay(10000 * 0); +#endif + if (IS_CHILD_PROCESS(audio.mixer_pid)) Mixer_Main(); /* this function never returns */ else @@ -225,7 +358,7 @@ static void InitAudioDevice_Linux(struct AudioFormatInfo *afmt) 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"); + "cannot set fragment size of audio device -- no sounds"); i = 0; afmt->format = 0; @@ -241,7 +374,7 @@ static void InitAudioDevice_Linux(struct AudioFormatInfo *afmt) if (afmt->format == 0) /* no supported audio format found */ Error(ERR_EXIT_SOUND_SERVER, - "cannot set audio format of /dev/dsp -- no sounds"); + "cannot set audio format of audio device -- no sounds"); /* try if we can use stereo sound */ afmt->stereo = TRUE; @@ -250,15 +383,15 @@ static void InitAudioDevice_Linux(struct AudioFormatInfo *afmt) 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"); + "cannot set sample rate of audio device -- 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"); + "cannot get fragment size of audio device -- no sounds"); if (fragment_size_query != afmt->fragment_size) Error(ERR_EXIT_SOUND_SERVER, - "cannot set fragment size of /dev/dsp -- no sounds"); + "cannot set fragment size of audio device -- no sounds"); } #endif /* AUDIO_LINUX_IOCTL */ @@ -272,8 +405,8 @@ static void InitAudioDevice_NetBSD(struct AudioFormatInfo *afmt) 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; + a_info.play.sample_rate = afmt->sample_rate; + a_info.blocksize = afmt->fragment_size; afmt->format = AUDIO_FORMAT_U8; afmt->stereo = TRUE; @@ -287,7 +420,7 @@ static void InitAudioDevice_NetBSD(struct AudioFormatInfo *afmt) if (ioctl(audio.device_fd, AUDIO_SETINFO, &a_info) < 0) Error(ERR_EXIT_SOUND_SERVER, - "cannot set sample rate of /dev/audio -- no sounds"); + "cannot set sample rate of audio device -- no sounds"); } } #endif /* PLATFORM_NETBSD */ @@ -300,7 +433,7 @@ static void InitAudioDevice_HPUX(struct AudioFormatInfo *afmt) audio_ctl = open("/dev/audioCtl", O_WRONLY | O_NDELAY); if (audio_ctl == -1) - Error(ERR_EXIT_SOUND_SERVER, "cannot open /dev/audioCtl -- no sounds"); + Error(ERR_EXIT_SOUND_SERVER, "cannot open audio device -- no sounds"); if (ioctl(audio_ctl, AUDIO_DESCRIBE, &ainfo) == -1) Error(ERR_EXIT_SOUND_SERVER, "no audio info -- no sounds"); @@ -365,14 +498,19 @@ static void ReadSoundControlFromMainProcess(SoundControl *snd_ctrl) Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds"); } -static void WriteReloadInfoToPipe(char *set_name, int type) +static void WriteReloadInfoToPipe(char *set_identifier, int type) { SoundControl snd_ctrl; TreeInfo *ti = (type == SND_CTRL_RELOAD_SOUNDS ? artwork.snd_current : artwork.mus_current); unsigned long str_size1 = strlen(leveldir_current->fullpath) + 1; - unsigned long str_size2 = strlen(ti->basepath) + 1; - unsigned long str_size3 = strlen(ti->fullpath) + 1; + unsigned long str_size2 = strlen(leveldir_current->sounds_path) + 1; + unsigned long str_size3 = strlen(leveldir_current->music_path) + 1; + unsigned long str_size4 = strlen(ti->basepath) + 1; + unsigned long str_size5 = strlen(ti->fullpath) + 1; + boolean override_level_artwork = (type == SND_CTRL_RELOAD_SOUNDS ? + setup.override_level_sounds : + setup.override_level_music); if (IS_CHILD_PROCESS(audio.mixer_pid)) return; @@ -382,12 +520,14 @@ static void WriteReloadInfoToPipe(char *set_name, int type) snd_ctrl.active = FALSE; snd_ctrl.state = type; - snd_ctrl.data_len = strlen(set_name) + 1; + snd_ctrl.data_len = strlen(set_identifier) + 1; if (write(audio.mixer_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0 || - write(audio.mixer_pipe[1], set_name, + write(audio.mixer_pipe[1], set_identifier, snd_ctrl.data_len) < 0 || + write(audio.mixer_pipe[1], &override_level_artwork, + sizeof(boolean)) < 0 || write(audio.mixer_pipe[1], leveldir_current, sizeof(TreeInfo)) < 0 || write(audio.mixer_pipe[1], ti, @@ -398,12 +538,20 @@ static void WriteReloadInfoToPipe(char *set_name, int type) sizeof(unsigned long)) < 0 || write(audio.mixer_pipe[1], &str_size3, sizeof(unsigned long)) < 0 || + write(audio.mixer_pipe[1], &str_size4, + sizeof(unsigned long)) < 0 || + write(audio.mixer_pipe[1], &str_size5, + sizeof(unsigned long)) < 0 || write(audio.mixer_pipe[1], leveldir_current->fullpath, str_size1) < 0 || - write(audio.mixer_pipe[1], ti->basepath, + write(audio.mixer_pipe[1], leveldir_current->sounds_path, str_size2) < 0 || + write(audio.mixer_pipe[1], leveldir_current->music_path, + str_size3) < 0 || + write(audio.mixer_pipe[1], ti->basepath, + str_size4) < 0 || write(audio.mixer_pipe[1], ti->fullpath, - str_size3) < 0) + str_size5) < 0) { Error(ERR_WARN, "cannot pipe to child process -- no sounds"); audio.sound_available = audio.sound_enabled = FALSE; @@ -416,27 +564,37 @@ static void ReadReloadInfoFromPipe(SoundControl *snd_ctrl) TreeInfo **ti_ptr = ((snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS) ? &artwork.snd_current : &artwork.mus_current); TreeInfo *ti = *ti_ptr; - unsigned long str_size1, str_size2, str_size3; - static char *set_name = NULL; + unsigned long str_size1, str_size2, str_size3, str_size4, str_size5; + static char *set_identifier = NULL; + boolean *override_level_artwork = (snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS ? + &setup.override_level_sounds : + &setup.override_level_music); - if (set_name) - free(set_name); + if (set_identifier) + free(set_identifier); - set_name = checked_malloc(snd_ctrl->data_len); + set_identifier = checked_malloc(snd_ctrl->data_len); if (leveldir_current == NULL) leveldir_current = checked_calloc(sizeof(TreeInfo)); + if (ti == NULL) ti = *ti_ptr = checked_calloc(sizeof(TreeInfo)); if (leveldir_current->fullpath != NULL) free(leveldir_current->fullpath); + if (leveldir_current->sounds_path != NULL) + free(leveldir_current->sounds_path); + if (leveldir_current->music_path != NULL) + free(leveldir_current->music_path); if (ti->basepath != NULL) free(ti->basepath); if (ti->fullpath != NULL) free(ti->fullpath); - if (read(audio.mixer_pipe[0], set_name, + if (read(audio.mixer_pipe[0], set_identifier, snd_ctrl->data_len) != snd_ctrl->data_len || + read(audio.mixer_pipe[0], override_level_artwork, + sizeof(boolean)) != sizeof(boolean) || read(audio.mixer_pipe[0], leveldir_current, sizeof(TreeInfo)) != sizeof(TreeInfo) || read(audio.mixer_pipe[0], ti, @@ -446,25 +604,35 @@ static void ReadReloadInfoFromPipe(SoundControl *snd_ctrl) read(audio.mixer_pipe[0], &str_size2, sizeof(unsigned long)) != sizeof(unsigned long) || read(audio.mixer_pipe[0], &str_size3, + sizeof(unsigned long)) != sizeof(unsigned long) || + read(audio.mixer_pipe[0], &str_size4, + sizeof(unsigned long)) != sizeof(unsigned long) || + read(audio.mixer_pipe[0], &str_size5, sizeof(unsigned long)) != sizeof(unsigned long)) Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds"); leveldir_current->fullpath = checked_calloc(str_size1); - ti->basepath = checked_calloc(str_size2); - ti->fullpath = checked_calloc(str_size3); + leveldir_current->sounds_path = checked_calloc(str_size2); + leveldir_current->music_path = checked_calloc(str_size3); + ti->basepath = checked_calloc(str_size4); + ti->fullpath = checked_calloc(str_size5); if (read(audio.mixer_pipe[0], leveldir_current->fullpath, str_size1) != str_size1 || - read(audio.mixer_pipe[0], ti->basepath, + read(audio.mixer_pipe[0], leveldir_current->sounds_path, str_size2) != str_size2 || + read(audio.mixer_pipe[0], leveldir_current->music_path, + str_size3) != str_size3 || + read(audio.mixer_pipe[0], ti->basepath, + str_size4) != str_size4 || read(audio.mixer_pipe[0], ti->fullpath, - str_size3) != str_size3) + str_size5) != str_size5) Error(ERR_EXIT_SOUND_SERVER, "broken pipe -- no sounds"); if (snd_ctrl->state & SND_CTRL_RELOAD_SOUNDS) - artwork.sounds_set_current = set_name; + artwork.snd_current_identifier = set_identifier; else - artwork.music_set_current = set_name; + artwork.mus_current_identifier = set_identifier; } #endif /* AUDIO_UNIX_NATIVE */ @@ -483,34 +651,99 @@ 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].playing_pos = 0; - mixer[channel].playing_starttime = Counter(); +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 - if (IS_LOOP(mixer[channel])) - voice_set_playmode(mixer[channel].voice, PLAYMODE_LOOP); + 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; + + 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 +765,12 @@ 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[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 @@ -570,7 +797,7 @@ static void Mixer_FadeChannel(int channel) #if defined(TARGET_SDL) Mix_FadeOutChannel(channel, SOUND_FADING_INTERVAL); -#elif defined(PLATFORM_MSDOS) +#elif defined(TARGET_ALLEGRO) if (voice_check(mixer[channel].voice)) voice_ramp_volume(mixer[channel].voice, SOUND_FADING_INTERVAL, 0); #endif @@ -591,11 +818,11 @@ static void Mixer_UnFadeChannel(int channel) return; mixer[channel].state &= ~SND_CTRL_FADE; - mixer[channel].volume = PSND_MAX_VOLUME; + mixer[channel].volume = SOUND_MAX_VOLUME; #if defined(TARGET_SDL) Mix_ExpireChannel(channel, -1); - Mix_Volume(channel, SOUND_MAX_VOLUME); + 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, @@ -609,15 +836,17 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) 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); + printf("NEW SOUND %d ARRIVED [%d] [%d ACTIVE CHANNELS]\n", + snd_ctrl.nr, num_sounds, mixer_active_channels); #endif if (IS_MUSIC(snd_ctrl)) + { + if (num_music == 0) + return; + snd_ctrl.nr = snd_ctrl.nr % num_music; + } else if (snd_ctrl.nr >= num_sounds) return; @@ -634,27 +863,58 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) /* play music samples on a dedicated music channel */ if (IS_MUSIC(snd_ctrl)) { + Mixer_StopMusicChannel(); + mixer[audio.music_channel] = snd_ctrl; Mixer_PlayMusicChannel(); return; } - /* check if sound is already being played (and how often) */ + /* check if (and how often) this sound sample is already playing */ 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) { @@ -667,14 +927,10 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) int playing_time = playing_current - mixer[i].playing_starttime; int actual; - if (!mixer[i].active || mixer[i].nr != snd_ctrl.nr) + if (!mixer[i].active || !SAME_SOUND_NR(mixer[i], snd_ctrl)) continue; -#if 1 actual = 1000 * playing_time / mixer[i].data_len; -#else - actual = 100 * mixer[i].playing_pos / mixer[i].data_len; -#endif if (actual >= longest) { @@ -692,6 +948,24 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) of the channel's sound sample when compiling with the SDL mixer library, we use the current playing time (in milliseconds) instead. */ +#if DEBUG + /* channel allocation sanity check -- should not be needed */ + if (mixer_active_channels == + audio.num_channels - (mixer[audio.music_channel].active ? 0 : 1)) + { + for (i=audio.first_sound_channel; i longest) { @@ -717,43 +993,25 @@ static void Mixer_InsertSound(SoundControl snd_ctrl) Mixer_StopChannel(longest_nr); } - /* add new sound to mixer */ - for(i=0; idata_len == 0) { printf("THIS SHOULD NEVER HAPPEN! [snd_info->data_len == 0]\n"); } #endif -#endif - -#if 1 - if (IS_MUSIC(snd_ctrl) && i == audio.music_channel && mixer[i].active) - { - printf("THIS SHOULD NEVER HAPPEN! [adding music twice]\n"); - -#if 1 - Mixer_StopChannel(i); -#endif - } -#endif mixer[i] = snd_ctrl; Mixer_PlayChannel(i); @@ -775,35 +1033,11 @@ static void HandleSoundRequest(SoundControl snd_ctrl) } #endif + /* deactivate channels that have expired since the last request */ 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_position]; - int right_volume= stereo_volume[middle_pos - mixer[i].stereo_position]; + 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]; @@ -1100,14 +1332,13 @@ static int Mixer_Main_SimpleAudio(SoundControl snd_ctrl) 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 +#if 1 for(j=0; j 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) { @@ -1434,7 +1721,13 @@ 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 */ @@ -1512,6 +1805,10 @@ 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); @@ -1582,6 +1879,8 @@ static MusicInfo *Load_MOD(char *filename) void LoadCustomMusic(void) { + static boolean draw_init_text = TRUE; /* only draw at startup */ + static char *last_music_directory = NULL; char *music_directory = getCustomMusicDirectory(); DIR *dir; struct dirent *dir_entry; @@ -1589,6 +1888,16 @@ void LoadCustomMusic(void) if (!audio.sound_available) return; + if (last_music_directory != NULL && + strcmp(last_music_directory, music_directory) == 0) + return; /* old and new music directory are the same */ + + if (last_music_directory != NULL) + free(last_music_directory); + last_music_directory = getStringCopy(music_directory); + + FreeAllMusic(); + if ((dir = opendir(music_directory)) == NULL) { Error(ERR_WARN, "cannot read music directory '%s'", music_directory); @@ -1596,12 +1905,22 @@ 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 0 + printf("DEBUG: loading music '%s' ...\n", basename); +#endif + + if (draw_init_text) + DrawInitText(basename, 150, FC_YELLOW); + if (FileIsSound(basename)) mus_info = Load_WAV(filename); else if (FileIsMusic(basename)) @@ -1619,6 +1938,8 @@ 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); @@ -1634,22 +1955,22 @@ 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_position) { - PlaySoundExt(nr, PSND_MAX_VOLUME, stereo_position, 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_position, int state) @@ -1661,15 +1982,15 @@ void PlaySoundExt(int nr, int volume, int stereo_position, 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_position < PSND_MAX_LEFT) - stereo_position = PSND_MAX_LEFT; - else if (stereo_position > PSND_MAX_RIGHT) - stereo_position = 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; @@ -1813,6 +2134,10 @@ 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