/* Copyright (C) 1996-1997 Id Software, Inc. 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. */ // sound.h -- client sound i/o functions #ifndef __SOUND__ #define __SOUND__ // !!! if this is changed, it much be changed in asm_i386.h too !!! #define MAXSOUNDCHANNELS 6 //on a per device basis // !!! if this is changed, it much be changed in asm_i386.h too !!! struct sfx_s; /*typedef struct { int left; int right; } portable_samplepair_t; */ typedef struct { int s[MAXSOUNDCHANNELS]; } portable_samplegroup_t; typedef struct { int decodedlen; int (*decodemore) (struct sfx_s *sfx, int length); //retrurn true when done. void (*abort) (struct sfx_s *sfx); //it's not playing elsewhere. free entirly void *buf; } sfxdecode_t; typedef struct sfx_s { char name[MAX_OSPATH]; cache_user_t cache; sfxdecode_t *decoder; } sfx_t; // !!! if this is changed, it much be changed in asm_i386.h too !!! typedef struct sfxcache_s { int length; int loopstart; int speed; int width; int numchannels; qbyte data[1]; // variable sized } sfxcache_t; typedef struct { qboolean gamealive; qboolean soundalive; qboolean splitbuffer; int numchannels; int samples; // mono samples in buffer int submission_chunk; // don't mix less than this # int samplepos; // in mono samples int samplebits; int speed; unsigned char *buffer; } dma_t; // !!! if this is changed, it much be changed in asm_i386.h too !!! typedef struct { sfx_t *sfx; // sfx number int vol[MAXSOUNDCHANNELS]; // 0-255 volume int delay[MAXSOUNDCHANNELS]; int end; // end time in global paintsamples int pos; // sample position in sfx int looping; // where to loop, -1 = no looping int entnum; // to allow overriding a specific sound int entchannel; //int audio_fd vec3_t origin; // origin of sound effect vec_t dist_mult; // distance multiplier (attenuation/clipK) int master_vol; // 0-255 master volume } channel_t; typedef struct { int rate; int width; int numchannels; int loopstart; int samples; int dataofs; // chunk starts this many bytes from file start } wavinfo_t; struct soundcardinfo_s; typedef struct soundcardinfo_s soundcardinfo_t; void S_Init (void); void S_Startup (void); void S_Shutdown (void); void S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation); void S_StaticSound (sfx_t *sfx, vec3_t origin, float vol, float attenuation); void S_StopSound (int entnum, int entchannel); void S_StopAllSounds(qboolean clear); void S_Update (vec3_t origin, vec3_t v_forward, vec3_t v_right, vec3_t v_up); void S_ExtraUpdate (void); sfx_t *S_PrecacheSound (char *sample); void S_TouchSound (char *sample); void S_ClearPrecache (void); void S_BeginPrecaching (void); void S_EndPrecaching (void); void S_ClearBuffer (soundcardinfo_t *sc); void S_PaintChannels(soundcardinfo_t *sc, int endtime); void S_InitPaintChannels (soundcardinfo_t *sc); void S_ShutdownCard (soundcardinfo_t *sc); void S_StopSoundCard (soundcardinfo_t *sc, int entnum, int entchannel); qboolean S_IsPlayingSomewhere(sfx_t *s); void ResampleSfx (sfx_t *sfx, int inrate, int inwidth, qbyte *data); // picks a channel based on priorities, empty slots, number of channels channel_t *SND_PickChannel(soundcardinfo_t *sc, int entnum, int entchannel); // spatializes a channel void SND_Spatialize(soundcardinfo_t *sc, channel_t *ch); // restart entire sound subsystem (doesn't flush old sounds, so make sure that happens) void S_DoRestart (void); void S_Restart_f (void); //plays streaming audio void S_RawAudio(int sourceid, qbyte *data, int speed, int samples, int channels, int width); void CLVC_Poll (void); void SNDVC_MicInput(qbyte *buffer, int samples, int freq, int width); // ==================================================================== // User-setable variables // ==================================================================== #define MAX_CHANNELS 256 #define MAX_DYNAMIC_CHANNELS 8 // // Fake dma is a synchronous faking of the DMA progress used for // isolating performance in the renderer. The fakedma_updates is // number of times S_Update() is called per second. // extern int snd_speed; extern qboolean fakedma; extern int fakedma_updates; extern vec3_t listener_origin; extern vec3_t listener_forward; extern vec3_t listener_right; extern vec3_t listener_up; extern vec_t sound_nominal_clip_dist; extern cvar_t loadas8bit; extern cvar_t bgmvolume; extern cvar_t volume; extern cvar_t snd_capture; extern qboolean snd_initialized; extern cvar_t snd_usemultipledevices; extern int snd_blocked; void S_LocalSound (char *s); sfxcache_t *S_LoadSound (sfx_t *s); typedef sfxcache_t *(*S_LoadSound_t) (sfx_t *s, qbyte *data, int datalen, int sndspeed); qboolean S_RegisterSoundInputPlugin(S_LoadSound_t loadfnc); //called to register additional sound input plugins wavinfo_t GetWavinfo (char *name, qbyte *wav, int wavlength); void S_AmbientOff (void); void S_AmbientOn (void); //inititalisation functions. typedef int (*sounddriver) (soundcardinfo_t *sc, int cardnum); extern sounddriver pDSOUND_InitCard; extern sounddriver pALSA_InitCard; extern sounddriver pOSS_InitCard; extern sounddriver pSDL_InitCard; extern sounddriver pWAV_InitCard; extern sounddriver pAHI_InitCard; struct soundcardinfo_s { //windows has one defined AFTER directsound char name[256]; //a description of the card. struct soundcardinfo_s *next; //speaker orientations for spacialisation. float dist[MAX_CHANNELS]; float pitch[MAX_CHANNELS]; float yaw[MAX_CHANNELS]; //info on which sound effects are playing channel_t channel[MAX_CHANNELS]; int total_chans; //mixer volatile dma_t sn; //why is this volatile? qboolean inactive_sound; //continue mixing for this card even when the window isn't active. qboolean selfpainting; //allow the sound code to call the right functions when it feels the need (not properly supported). int paintedtime; //used in the mixer int oldsamplepos; //fixme: is this still needed? int buffers; //used to keep track of buffer wraps for consistant sound //callbacks void *(*Lock) (soundcardinfo_t *sc); void (*Unlock) (soundcardinfo_t *sc, void *buffer); void (*Submit) (soundcardinfo_t *sc); void (*Shutdown) (soundcardinfo_t *sc); unsigned int (*GetDMAPos) (soundcardinfo_t *sc); void (*SetWaterDistortion) (soundcardinfo_t *sc, qboolean underwater); void (*Restore) (soundcardinfo_t *sc); //driver -specific void *handle; int snd_sent; int snd_completed; int audio_fd; }; extern soundcardinfo_t *sndcardinfo; #endif