ref: f09667a3da971dc0fd4d4638d5c12a363d8b3945
dir: /src/hexen/s_sound.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 1993-2008 Raven Software // Copyright(C) 2008 Simon Howard // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA // 02111-1307, USA. // //----------------------------------------------------------------------------- #include "h2def.h" #include "m_random.h" #include "i_cdmus.h" #include "i_sound.h" #include "i_system.h" #include "i_timer.h" #include "m_argv.h" #include "m_misc.h" #include "r_local.h" #include "p_local.h" // for P_AproxDistance #include "sounds.h" #include "s_sound.h" #define PRIORITY_MAX_ADJUST 10 #define DIST_ADJUST (MAX_SND_DIST/PRIORITY_MAX_ADJUST) #define DEFAULT_ARCHIVEPATH "o:\\sound\\archive\\" void S_ShutDown(void); // If true, CD music playback is enabled (snd_musicdevice == SNDDEVICE_CD // and CD initialization succeeded). boolean cdmusic; // Track number of a track to play explicitly chosen by the // player using cheats. A value of zero means no track chosen: static int cd_custom_track = 0; // Currently playing track: static int cd_current_track = 0; // Time (MS) at which the currently-playing CD track will finish playing // and should be looped. Zero if we are not currently playing a track: static int cd_track_end_time = 0; /* =============================================================================== MUSIC & SFX API =============================================================================== */ //static channel_t channel[MAX_CHANNELS]; //static int rs; //the current registered song. //int mus_song = -1; //int mus_lumpnum; //void *mus_sndptr; //byte *soundCurve; extern sfxinfo_t S_sfx[]; extern musicinfo_t S_music[]; static channel_t Channel[MAX_CHANNELS]; static void *RegisteredSong; //the current registered song. static boolean MusicPaused; static int Mus_Song = -1; static byte *Mus_SndPtr; static byte *SoundCurve; int snd_MaxVolume = 10; // maximum volume for sound int snd_MusicVolume = 10; // maximum volume for music int snd_Channels = 16; // int AmbChan; //========================================================================== // // S_Start // //========================================================================== void S_Start(void) { S_StopAllSound(); S_StartSong(gamemap, true); } //========================================================================== // // Returns true if we are playing a looping CD track and it is time to // restart it. // //========================================================================== static boolean ShouldRestartCDTrack(void) { return cd_track_end_time != 0 && I_GetTimeMS() > cd_track_end_time; } //========================================================================== // // Start playing a CD track. Returns true for success. // //========================================================================== static boolean StartCDTrack(int track, boolean loop) { // Already playing? If so, don't bother. if (track == cd_current_track && !ShouldRestartCDTrack()) { return true; } if (I_CDMusPlay(track)) { return false; } cd_current_track = track; if (loop) { cd_track_end_time = I_GetTimeMS() + 1000 * I_CDMusTrackLength(track); } else { cd_track_end_time = 0; } return true; } //========================================================================== // // S_StartSong // //========================================================================== void S_StartSong(int song, boolean loop) { char *songLump; int lumpnum; int length; int track; // If we're in CD music mode, play a CD track, instead: if (cdmusic) { // Default to the player-chosen track if (cd_custom_track != 0) { track = cd_custom_track; } else { track = P_GetMapCDTrack(gamemap); } StartCDTrack(track, loop); } else { if (song == Mus_Song) { // don't replay an old song return; } if (RegisteredSong) { I_StopSong(); I_UnRegisterSong(RegisteredSong); RegisteredSong = 0; } songLump = P_GetMapSongLump(song); if (!songLump) { return; } lumpnum = W_GetNumForName(songLump); Mus_SndPtr = W_CacheLumpNum(lumpnum, PU_STATIC); length = W_LumpLength(lumpnum); RegisteredSong = I_RegisterSong(Mus_SndPtr, length); I_PlaySong(RegisteredSong, loop); Mus_Song = song; W_ReleaseLumpNum(lumpnum); } } //========================================================================== // // Play a custom-chosen music track selected by the player. // // Returns true for success. // //========================================================================== boolean S_StartCustomCDTrack(int tracknum) { boolean result; result = StartCDTrack(tracknum, true); if (result) { cd_custom_track = tracknum; } return result; } //========================================================================== // // Get the currently-playing CD track; returns -1 if not playing. // //========================================================================== int S_GetCurrentCDTrack(void) { if (!cdmusic || cd_current_track == 0) { return -1; } return cd_current_track; } //========================================================================== // // S_StartSongName // //========================================================================== void S_StartSongName(char *songLump, boolean loop) { int lumpnum; int cdTrack; int length; if (!songLump) { return; } if (cdmusic) { cdTrack = 0; if (!strcmp(songLump, "hexen")) { cdTrack = P_GetCDTitleTrack(); } else if (!strcmp(songLump, "hub")) { cdTrack = P_GetCDIntermissionTrack(); } else if (!strcmp(songLump, "hall")) { cdTrack = P_GetCDEnd1Track(); } else if (!strcmp(songLump, "orb")) { cdTrack = P_GetCDEnd2Track(); } else if (!strcmp(songLump, "chess") && cd_custom_track == 0) { cdTrack = P_GetCDEnd3Track(); } /* Uncomment this, if Kevin writes a specific song for startup else if(!strcmp(songLump, "start")) { cdTrack = P_GetCDStartTrack(); } */ if (cdTrack != 0) { cd_custom_track = 0; StartCDTrack(cdTrack, loop); } } else { if (RegisteredSong) { I_StopSong(); I_UnRegisterSong(RegisteredSong); RegisteredSong = NULL; } lumpnum = W_GetNumForName(songLump); Mus_SndPtr = W_CacheLumpNum(lumpnum, PU_MUSIC); length = W_LumpLength(lumpnum); RegisteredSong = I_RegisterSong(Mus_SndPtr, length); I_PlaySong(RegisteredSong, loop); W_ReleaseLumpNum(lumpnum); Mus_Song = -1; } } //========================================================================== // // S_GetSoundID // //========================================================================== int S_GetSoundID(char *name) { int i; for (i = 0; i < NUMSFX; i++) { if (!strcmp(S_sfx[i].tagname, name)) { return i; } } return 0; } //========================================================================== // // S_StartSound // //========================================================================== void S_StartSound(mobj_t * origin, int sound_id) { S_StartSoundAtVolume(origin, sound_id, 127); } static mobj_t *GetSoundListener(void) { static degenmobj_t dummy_listener; // If we are at the title screen, the console player doesn't have an // object yet, so return a pointer to a static dummy listener instead. if (players[displayplayer].mo != NULL) { return players[displayplayer].mo; } else { dummy_listener.x = 0; dummy_listener.y = 0; dummy_listener.z = 0; return (mobj_t *) &dummy_listener; } } //========================================================================== // // S_StartSoundAtVolume // //========================================================================== void S_StartSoundAtVolume(mobj_t * origin, int sound_id, int volume) { mobj_t *listener; int dist, vol; int i; int priority; int sep; int angle; int absx; int absy; static int sndcount = 0; int chan; if (sound_id == 0 || snd_MaxVolume == 0) return; listener = GetSoundListener(); if (origin == NULL) { origin = listener; } if (volume == 0) { return; } // calculate the distance before other stuff so that we can throw out // sounds that are beyond the hearing range. absx = abs(origin->x - listener->x); absy = abs(origin->y - listener->y); dist = absx + absy - (absx > absy ? absy >> 1 : absx >> 1); dist >>= FRACBITS; if (dist >= MAX_SND_DIST) { return; // sound is beyond the hearing range... } if (dist < 0) { dist = 0; } priority = S_sfx[sound_id].priority; priority *= (PRIORITY_MAX_ADJUST - (dist / DIST_ADJUST)); #if 0 // TODO if (!S_StopSoundID(sound_id, priority)) { return; // other sounds have greater priority } #endif for (i = 0; i < snd_Channels; i++) { if (origin->player) { i = snd_Channels; break; // let the player have more than one sound. } if (origin == Channel[i].mo) { // only allow other mobjs one sound S_StopSound(Channel[i].mo); break; } } if (i >= snd_Channels) { for (i = 0; i < snd_Channels; i++) { if (Channel[i].mo == NULL) { break; } } if (i >= snd_Channels) { // look for a lower priority sound to replace. sndcount++; if (sndcount >= snd_Channels) { sndcount = 0; } for (chan = 0; chan < snd_Channels; chan++) { i = (sndcount + chan) % snd_Channels; if (priority >= Channel[i].priority) { chan = -1; //denote that sound should be replaced. break; } } if (chan != -1) { return; //no free channels. } else //replace the lower priority sound. { if (Channel[i].handle) { if (I_SoundIsPlaying(Channel[i].handle)) { I_StopSound(Channel[i].handle); } if (S_sfx[Channel[i].sound_id].usefulness > 0) { S_sfx[Channel[i].sound_id].usefulness--; } } } } } Channel[i].mo = origin; vol = (SoundCurve[dist] * (snd_MaxVolume * 8) * volume) >> 14; if (origin == listener) { sep = 128; // vol = (volume*(snd_MaxVolume+1)*8)>>7; } else { angle = R_PointToAngle2(listener->x, listener->y, Channel[i].mo->x, Channel[i].mo->y); angle = (angle - viewangle) >> 24; sep = angle * 2 - 128; if (sep < 64) sep = -sep; if (sep > 192) sep = 512 - sep; // vol = SoundCurve[dist]; } #if 0 // TODO if (S_sfx[sound_id].changePitch) { Channel[i].pitch = (byte) (127 + (M_Random() & 7) - (M_Random() & 7)); } else { Channel[i].pitch = 127; } #endif if (S_sfx[sound_id].lumpnum == 0) { S_sfx[sound_id].lumpnum = I_GetSfxLumpNum(&S_sfx[sound_id]); } Channel[i].handle = I_StartSound(&S_sfx[sound_id], i, vol, sep /* , Channel[i].pitch] */); Channel[i].sound_id = sound_id; Channel[i].priority = priority; Channel[i].volume = volume; if (S_sfx[sound_id].usefulness < 0) { S_sfx[sound_id].usefulness = 1; } else { S_sfx[sound_id].usefulness++; } } //========================================================================== // // S_StopSoundID // //========================================================================== boolean S_StopSoundID(int sound_id, int priority) { int i; int lp; //least priority int found; if (S_sfx[sound_id].numchannels == -1) { return (true); } lp = -1; //denote the argument sound_id found = 0; for (i = 0; i < snd_Channels; i++) { if (Channel[i].sound_id == sound_id && Channel[i].mo) { found++; //found one. Now, should we replace it?? if (priority >= Channel[i].priority) { // if we're gonna kill one, then this'll be it lp = i; priority = Channel[i].priority; } } } if (found < S_sfx[sound_id].numchannels) { return (true); } else if (lp == -1) { return (false); // don't replace any sounds } if (Channel[lp].handle) { if (I_SoundIsPlaying(Channel[lp].handle)) { I_StopSound(Channel[lp].handle); } if (S_sfx[Channel[lp].sound_id].usefulness > 0) { S_sfx[Channel[lp].sound_id].usefulness--; } Channel[lp].mo = NULL; } return (true); } //========================================================================== // // S_StopSound // //========================================================================== void S_StopSound(mobj_t * origin) { int i; for (i = 0; i < snd_Channels; i++) { if (Channel[i].mo == origin) { I_StopSound(Channel[i].handle); if (S_sfx[Channel[i].sound_id].usefulness > 0) { S_sfx[Channel[i].sound_id].usefulness--; } Channel[i].handle = 0; Channel[i].mo = NULL; } } } //========================================================================== // // S_StopAllSound // //========================================================================== void S_StopAllSound(void) { int i; //stop all sounds for (i = 0; i < snd_Channels; i++) { if (Channel[i].handle) { S_StopSound(Channel[i].mo); } } memset(Channel, 0, 8 * sizeof(channel_t)); } //========================================================================== // // S_SoundLink // //========================================================================== void S_SoundLink(mobj_t * oldactor, mobj_t * newactor) { int i; for (i = 0; i < snd_Channels; i++) { if (Channel[i].mo == oldactor) Channel[i].mo = newactor; } } //========================================================================== // // S_PauseSound // //========================================================================== void S_PauseSound(void) { if (cdmusic) { I_CDMusStop(); } else { I_PauseSong(); } } //========================================================================== // // S_ResumeSound // //========================================================================== void S_ResumeSound(void) { if (cdmusic) { I_CDMusResume(); } else { I_ResumeSong(); } } //========================================================================== // // S_UpdateSounds // //========================================================================== void S_UpdateSounds(mobj_t * listener) { int i, dist, vol; int angle; int sep; int priority; int absx; int absy; // If we are looping a CD track, we need to check if it has // finished playing and needs to restart. if (cdmusic && ShouldRestartCDTrack()) { StartCDTrack(cd_current_track, true); } if (snd_MaxVolume == 0) { return; } // Update any Sequences SN_UpdateActiveSequences(); for (i = 0; i < snd_Channels; i++) { if (!Channel[i].handle || S_sfx[Channel[i].sound_id].usefulness == -1) { continue; } if (!I_SoundIsPlaying(Channel[i].handle)) { if (S_sfx[Channel[i].sound_id].usefulness > 0) { S_sfx[Channel[i].sound_id].usefulness--; } Channel[i].handle = 0; Channel[i].mo = NULL; Channel[i].sound_id = 0; } if (Channel[i].mo == NULL || Channel[i].sound_id == 0 || Channel[i].mo == listener || listener == NULL) { continue; } else { absx = abs(Channel[i].mo->x - listener->x); absy = abs(Channel[i].mo->y - listener->y); dist = absx + absy - (absx > absy ? absy >> 1 : absx >> 1); dist >>= FRACBITS; if (dist >= MAX_SND_DIST) { S_StopSound(Channel[i].mo); continue; } if (dist < 0) { dist = 0; } //vol = SoundCurve[dist]; vol = (SoundCurve[dist] * (snd_MaxVolume * 8) * Channel[i].volume) >> 14; if (Channel[i].mo == listener) { sep = 128; } else { angle = R_PointToAngle2(listener->x, listener->y, Channel[i].mo->x, Channel[i].mo->y); angle = (angle - viewangle) >> 24; sep = angle * 2 - 128; if (sep < 64) sep = -sep; if (sep > 192) sep = 512 - sep; } I_UpdateSoundParams(i, vol, sep /*, Channel[i].pitch */); priority = S_sfx[Channel[i].sound_id].priority; priority *= PRIORITY_MAX_ADJUST - (dist / DIST_ADJUST); Channel[i].priority = priority; } } } //========================================================================== // // S_Init // //========================================================================== void S_Init(void) { SoundCurve = W_CacheLumpName("SNDCURVE", PU_STATIC); // SoundCurve = Z_Malloc(MAX_SND_DIST, PU_STATIC, NULL); if (snd_Channels > 8) { snd_Channels = 8; } I_SetMusicVolume(snd_MusicVolume * 8); I_AtExit(S_ShutDown, true); I_PrecacheSounds(S_sfx, NUMSFX); // Attempt to setup CD music if (snd_musicdevice == SNDDEVICE_CD) { ST_Message(" Attempting to initialize CD Music: "); if (!cdrom) { cdmusic = (I_CDMusInit() != -1); } else { // The user is trying to use the cdrom for both game and music cdmusic = false; } if (cdmusic) { ST_Message("initialized.\n"); } else { ST_Message("failed.\n"); } I_CDMusPrintStartup(); } } //========================================================================== // // S_GetChannelInfo // //========================================================================== void S_GetChannelInfo(SoundInfo_t * s) { int i; ChanInfo_t *c; s->channelCount = snd_Channels; s->musicVolume = snd_MusicVolume; s->soundVolume = snd_MaxVolume; for (i = 0; i < snd_Channels; i++) { c = &s->chan[i]; c->id = Channel[i].sound_id; c->priority = Channel[i].priority; c->name = S_sfx[c->id].name; c->mo = Channel[i].mo; if (c->mo != NULL) { c->distance = P_AproxDistance(c->mo->x - viewx, c->mo->y - viewy) >> FRACBITS; } else { c->distance = 0; } } } //========================================================================== // // S_GetSoundPlayingInfo // //========================================================================== boolean S_GetSoundPlayingInfo(mobj_t * mobj, int sound_id) { int i; for (i = 0; i < snd_Channels; i++) { if (Channel[i].sound_id == sound_id && Channel[i].mo == mobj) { if (I_SoundIsPlaying(Channel[i].handle)) { return true; } } } return false; } //========================================================================== // // S_SetMusicVolume // //========================================================================== void S_SetMusicVolume(void) { if (cdmusic) { I_CDMusSetVolume(snd_MusicVolume * 16); // 0-255 } else { I_SetMusicVolume(snd_MusicVolume * 8); } if (snd_MusicVolume == 0) { if (!cdmusic) { I_PauseSong(); } MusicPaused = true; } else if (MusicPaused) { if (!cdmusic) { I_ResumeSong(); } MusicPaused = false; } } //========================================================================== // // S_ShutDown // //========================================================================== void S_ShutDown(void) { I_StopSong(); I_UnRegisterSong(RegisteredSong); I_ShutdownSound(); if (cdmusic) { I_CDMusStop(); } } //========================================================================== // // S_InitScript // //========================================================================== void S_InitScript(void) { int i; SC_OpenLump("sndinfo"); while (SC_GetString()) { if (*sc_String == '$') { if (!strcasecmp(sc_String, "$ARCHIVEPATH")) { SC_MustGetString(); } else if (!strcasecmp(sc_String, "$MAP")) { SC_MustGetNumber(); SC_MustGetString(); if (sc_Number) { P_PutMapSongLump(sc_Number, sc_String); } } continue; } else { for (i = 0; i < NUMSFX; i++) { if (!strcmp(S_sfx[i].tagname, sc_String)) { SC_MustGetString(); if (*sc_String != '?') { strcpy(S_sfx[i].name, sc_String); } else { strcpy(S_sfx[i].name, "default"); } break; } } if (i == NUMSFX) { SC_MustGetString(); } } } SC_Close(); for (i = 0; i < NUMSFX; i++) { if (!strcmp(S_sfx[i].name, "")) { strcpy(S_sfx[i].name, "default"); } } }