191 lines
5.3 KiB
C
191 lines
5.3 KiB
C
/*
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Copyright (C) 1996-2001 Id Software, Inc.
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Copyright (C) 2002-2009 John Fitzgibbons and others
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Copyright (C) 2007-2008 Kristian Duske
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Copyright (C) 2010-2014 QuakeSpasm developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// sound.h -- client sound i/o functions
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#ifndef __QUAKE_SOUND__
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#define __QUAKE_SOUND__
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/* !!! if this is changed, it must be changed in asm_i386.h too !!! */
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typedef struct
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{
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int left;
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int right;
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} portable_samplepair_t;
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typedef struct sfx_s
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{
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char name[MAX_QPATH];
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cache_user_t cache;
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} sfx_t;
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/* !!! if this is changed, it must be changed in asm_i386.h too !!! */
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typedef struct
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{
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int length;
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int loopstart;
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int speed;
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int width;
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int stereo;
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byte data[1]; /* variable sized */
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} sfxcache_t;
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typedef struct
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{
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int channels;
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int samples; /* mono samples in buffer */
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int submission_chunk; /* don't mix less than this # */
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int samplepos; /* in mono samples */
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int samplebits;
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int signed8; /* device opened for S8 format? (e.g. Amiga AHI) */
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int speed;
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unsigned char *buffer;
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} dma_t;
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/* !!! if this is changed, it must be changed in asm_i386.h too !!! */
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typedef struct
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{
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sfx_t *sfx; /* sfx number */
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int leftvol; /* 0-255 volume */
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int rightvol; /* 0-255 volume */
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int end; /* end time in global paintsamples */
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int pos; /* sample position in sfx */
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int looping; /* where to loop, -1 = no looping */
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int entnum; /* to allow overriding a specific sound */
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int entchannel;
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vec3_t origin; /* origin of sound effect */
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vec_t dist_mult; /* distance multiplier (attenuation/clipK) */
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int master_vol; /* 0-255 master volume */
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} channel_t;
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#define WAV_FORMAT_PCM 1
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typedef struct
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{
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int rate;
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int width;
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int channels;
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int loopstart;
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int samples;
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int dataofs; /* chunk starts this many bytes from file start */
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} wavinfo_t;
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void S_Init (void);
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void S_Startup (void);
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void S_Shutdown (void);
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void S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation);
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void S_StaticSound (sfx_t *sfx, vec3_t origin, float vol, float attenuation);
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void S_StopSound (int entnum, int entchannel);
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void S_StopAllSounds(qboolean clear);
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void S_ClearBuffer (void);
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void S_Update (vec3_t origin, vec3_t forward, vec3_t right, vec3_t up);
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void S_ExtraUpdate (void);
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void S_BlockSound (void);
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void S_UnblockSound (void);
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sfx_t *S_PrecacheSound (const char *sample);
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void S_TouchSound (const char *sample);
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void S_ClearPrecache (void);
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void S_BeginPrecaching (void);
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void S_EndPrecaching (void);
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void S_PaintChannels (int endtime);
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void S_InitPaintChannels (void);
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/* picks a channel based on priorities, empty slots, number of channels */
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channel_t *SND_PickChannel (int entnum, int entchannel);
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/* spatializes a channel */
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void SND_Spatialize (channel_t *ch);
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/* music stream support */
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void S_RawSamples(int samples, int rate, int width, int channels, byte * data, float volume);
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/* Expects data in signed 16 bit, or unsigned 8 bit format. */
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/* initializes cycling through a DMA buffer and returns information on it */
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qboolean SNDDMA_Init(dma_t *dma);
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/* gets the current DMA position */
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int SNDDMA_GetDMAPos(void);
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/* shutdown the DMA xfer. */
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void SNDDMA_Shutdown(void);
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/* validates & locks the dma buffer */
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void SNDDMA_LockBuffer(void);
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/* unlocks the dma buffer / sends sound to the device */
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void SNDDMA_Submit(void);
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/* blocks sound output upon window focus loss */
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void SNDDMA_BlockSound(void);
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/* unblocks the output upon window focus gain */
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void SNDDMA_UnblockSound(void);
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/* ====================================================================
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* User-setable variables
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* ====================================================================
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*/
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#define MAX_CHANNELS 1024 // ericw -- was 512 /* johnfitz -- was 128 */
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#define MAX_DYNAMIC_CHANNELS 128 /* johnfitz -- was 8 */
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extern channel_t snd_channels[MAX_CHANNELS];
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/* 0 to MAX_DYNAMIC_CHANNELS-1 = normal entity sounds
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* MAX_DYNAMIC_CHANNELS to MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS -1 = water, etc
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* MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS to total_channels = static sounds
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*/
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extern volatile dma_t *shm;
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extern int total_channels;
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extern int soundtime;
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extern int paintedtime;
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extern int s_rawend;
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extern vec3_t listener_origin;
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extern vec3_t listener_forward;
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extern vec3_t listener_right;
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extern vec3_t listener_up;
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extern cvar_t sndspeed;
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extern cvar_t snd_mixspeed;
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extern cvar_t snd_filterquality;
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extern cvar_t sfxvolume;
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extern cvar_t loadas8bit;
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#define MAX_RAW_SAMPLES 8192
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extern portable_samplepair_t s_rawsamples[MAX_RAW_SAMPLES];
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extern cvar_t bgmvolume;
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void S_LocalSound (const char *name);
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sfxcache_t *S_LoadSound (sfx_t *s);
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wavinfo_t GetWavinfo (const char *name, byte *wav, int wavlength);
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void SND_InitScaletable (void);
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#endif /* __QUAKE_SOUND__ */
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