mirror of
https://github.com/Q3Rally-Team/rallyunlimited-engine.git
synced 2024-11-22 20:31:10 +00:00
236 lines
6.8 KiB
C
236 lines
6.8 KiB
C
/*
|
|
===========================================================================
|
|
Copyright (C) 1999-2005 Id Software, Inc.
|
|
|
|
This file is part of Quake III Arena source code.
|
|
|
|
Quake III Arena source code 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.
|
|
|
|
Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
// snd_local.h -- private sound definitions
|
|
|
|
|
|
#include "../qcommon/q_shared.h"
|
|
#include "../qcommon/qcommon.h"
|
|
#include "snd_public.h"
|
|
|
|
#define PAINTBUFFER_SIZE 4096 // this is in samples
|
|
|
|
#define SND_CHUNK_SIZE 1024 // samples
|
|
#define SND_CHUNK_SIZE_FLOAT (SND_CHUNK_SIZE/2) // floats
|
|
#define SND_CHUNK_SIZE_BYTE (SND_CHUNK_SIZE*2) // floats
|
|
|
|
typedef struct {
|
|
int left; // the final values will be clamped to +/- 0x00ffff00 and shifted down
|
|
int right;
|
|
} portable_samplepair_t;
|
|
|
|
typedef struct adpcm_state {
|
|
short sample; /* Previous output value */
|
|
char index; /* Index into stepsize table */
|
|
} adpcm_state_t;
|
|
|
|
typedef struct sndBuffer_s {
|
|
short sndChunk[SND_CHUNK_SIZE];
|
|
struct sndBuffer_s *next;
|
|
int size;
|
|
adpcm_state_t adpcm;
|
|
} sndBuffer;
|
|
|
|
typedef struct sfx_s {
|
|
sndBuffer *soundData;
|
|
qboolean defaultSound; // couldn't be loaded, so use buzz
|
|
qboolean inMemory; // not in Memory
|
|
qboolean soundCompressed; // not in Memory
|
|
int soundCompressionMethod;
|
|
int soundLength;
|
|
int soundChannels;
|
|
char soundName[MAX_QPATH];
|
|
int lastTimeUsed;
|
|
struct sfx_s *next;
|
|
} sfx_t;
|
|
|
|
typedef struct {
|
|
unsigned int channels;
|
|
unsigned int samples; // mono samples in buffer
|
|
int fullsamples; // samples with all channels in buffer (samples divided by channels)
|
|
int submission_chunk; // don't mix less than this #
|
|
int samplebits;
|
|
int isfloat;
|
|
int speed;
|
|
byte *buffer;
|
|
const char *driver;
|
|
} dma_t;
|
|
|
|
extern byte *dma_buffer2;
|
|
|
|
#define START_SAMPLE_IMMEDIATE 0x7fffffff
|
|
|
|
#define MAX_DOPPLER_SCALE 50.0f //arbitrary
|
|
|
|
typedef struct loopSound_s {
|
|
vec3_t origin;
|
|
vec3_t velocity;
|
|
sfx_t *sfx;
|
|
int mergeFrame;
|
|
qboolean active;
|
|
qboolean kill;
|
|
qboolean doppler;
|
|
float dopplerScale;
|
|
float oldDopplerScale;
|
|
int framenum;
|
|
} loopSound_t;
|
|
|
|
typedef struct
|
|
{
|
|
int allocTime;
|
|
int startSample; // START_SAMPLE_IMMEDIATE = set immediately on next mix
|
|
int entnum; // to allow overriding a specific sound
|
|
int entchannel; // to allow overriding a specific sound
|
|
int leftvol; // 0-255 volume after spatialization
|
|
int rightvol; // 0-255 volume after spatialization
|
|
int master_vol; // 0-255 volume before spatialization
|
|
float dopplerScale;
|
|
float oldDopplerScale;
|
|
vec3_t origin; // only use if fixed_origin is set
|
|
qboolean fixed_origin; // use origin instead of fetching entnum's origin
|
|
sfx_t *thesfx; // sfx structure
|
|
qboolean doppler;
|
|
} channel_t;
|
|
|
|
|
|
#define WAV_FORMAT_PCM 0x0001
|
|
#define WAVE_FORMAT_IEEE_FLOAT 0x0003
|
|
|
|
typedef struct {
|
|
int format;
|
|
int rate;
|
|
int width;
|
|
int channels;
|
|
int samples;
|
|
int dataofs; // chunk starts this many bytes from file start
|
|
} wavinfo_t;
|
|
|
|
// Interface between Q3 sound "api" and the sound backend
|
|
typedef struct
|
|
{
|
|
void (*Shutdown)(void);
|
|
void (*StartSound)( const vec3_t origin, int entnum, int entchannel, sfxHandle_t sfx );
|
|
void (*StartLocalSound)( sfxHandle_t sfx, int channelNum );
|
|
void (*StartBackgroundTrack)( const char *intro, const char *loop );
|
|
void (*StopBackgroundTrack)( void );
|
|
void (*RawSamples)(int samples, int rate, int width, int channels, const byte *data, float volume);
|
|
void (*StopAllSounds)( void );
|
|
void (*ClearLoopingSounds)( qboolean killall );
|
|
void (*AddLoopingSound)( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx );
|
|
void (*AddRealLoopingSound)( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx );
|
|
void (*StopLoopingSound)(int entityNum );
|
|
void (*Respatialize)( int entityNum, const vec3_t origin, vec3_t axis[3], int inwater );
|
|
void (*UpdateEntityPosition)( int entityNum, const vec3_t origin );
|
|
void (*Update)( int msec );
|
|
void (*DisableSounds)( void );
|
|
void (*BeginRegistration)( void );
|
|
sfxHandle_t (*RegisterSound)( const char *sample, qboolean compressed );
|
|
void (*ClearSoundBuffer)( void );
|
|
void (*SoundInfo)( void );
|
|
void (*SoundList)( void );
|
|
} soundInterface_t;
|
|
|
|
|
|
/*
|
|
====================================================================
|
|
|
|
SYSTEM SPECIFIC FUNCTIONS
|
|
|
|
====================================================================
|
|
*/
|
|
|
|
// initializes cycling through a DMA buffer and returns information on it
|
|
qboolean SNDDMA_Init(void);
|
|
|
|
// gets the current DMA position
|
|
int SNDDMA_GetDMAPos(void);
|
|
|
|
// shutdown the DMA xfer.
|
|
void SNDDMA_Shutdown(void);
|
|
|
|
void SNDDMA_BeginPainting (void);
|
|
|
|
void SNDDMA_Submit(void);
|
|
|
|
//====================================================================
|
|
|
|
#define MAX_CHANNELS 96
|
|
|
|
extern channel_t s_channels[MAX_CHANNELS];
|
|
extern channel_t loop_channels[MAX_CHANNELS];
|
|
extern int numLoopChannels;
|
|
|
|
extern int s_soundtime;
|
|
extern int s_paintedtime;
|
|
extern int s_rawend;
|
|
extern vec3_t listener_forward;
|
|
extern vec3_t listener_right;
|
|
extern vec3_t listener_up;
|
|
extern dma_t dma;
|
|
|
|
#define MAX_RAW_SAMPLES 16384
|
|
extern portable_samplepair_t s_rawsamples[MAX_RAW_SAMPLES];
|
|
|
|
extern cvar_t *s_volume;
|
|
extern cvar_t *s_musicVolume;
|
|
extern cvar_t *s_doppler;
|
|
extern cvar_t *s_muteWhenUnfocused;
|
|
extern cvar_t *s_muteWhenMinimized;
|
|
|
|
extern cvar_t *s_testsound;
|
|
|
|
qboolean S_LoadSound( sfx_t *sfx );
|
|
|
|
void SND_free(sndBuffer *v);
|
|
sndBuffer* SND_malloc( void );
|
|
void SND_setup( void );
|
|
void SND_shutdown( void );
|
|
|
|
void S_PaintChannels(int endtime);
|
|
|
|
// spatializes a channel
|
|
void S_Spatialize(channel_t *ch);
|
|
|
|
// adpcm functions
|
|
int S_AdpcmMemoryNeeded( const wavinfo_t *info );
|
|
void S_AdpcmEncodeSound( sfx_t *sfx, short *samples );
|
|
void S_AdpcmGetSamples(sndBuffer *chunk, short *to);
|
|
|
|
// wavelet function
|
|
|
|
#define SENTINEL_MULAW_ZERO_RUN 127
|
|
#define SENTINEL_MULAW_FOUR_BIT_RUN 126
|
|
|
|
void S_FreeOldestSound( void );
|
|
|
|
#define NXStream byte
|
|
|
|
void encodeWavelet(sfx_t *sfx, short *packets);
|
|
void decodeWavelet( sndBuffer *stream, short *packets);
|
|
|
|
void encodeMuLaw( sfx_t *sfx, short *packets);
|
|
extern short mulawToShort[256];
|
|
|
|
extern short *sfxScratchBuffer;
|
|
extern sfx_t *sfxScratchPointer;
|
|
extern int sfxScratchIndex;
|
|
|
|
qboolean S_Base_Init( soundInterface_t *si );
|