mirror of
https://github.com/libretro/libretro-tyrquake.git
synced 2024-12-05 15:06:27 +00:00
33b5b4fcbe
Add SNDDMA_LockBuffer() and SNDDMA_UnlockBuffer() functions to the generic sound interface, to allow drivers to implement appropriate locking on their DMA buffers if required. Move the #ifdef'd Windows specific code to do this from the shared snd_mix.c and snd_dma.c files to the windows sound driver. Thanks to O.Sezer <sezero@users.sourceforge.net> for the idea and for providing the orginal patch which was the basis for this one. Signed-off-by: Tyrann <tyrann@disenchant.net>
168 lines
4.4 KiB
C
168 lines
4.4 KiB
C
/*
|
|
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.
|
|
|
|
*/
|
|
|
|
#ifndef SOUND_H
|
|
#define SOUND_H
|
|
|
|
#include "cvar.h"
|
|
#include "mathlib.h"
|
|
#include "qtypes.h"
|
|
#include "zone.h"
|
|
|
|
#ifdef NQ_HACK
|
|
#include "quakedef.h"
|
|
#endif
|
|
#ifdef QW_HACK
|
|
#include "bothdefs.h"
|
|
#endif
|
|
|
|
// sound.h -- client sound i/o functions
|
|
|
|
// FIXME - QW defines these in protocol.h, which is better?
|
|
#ifdef NQ_HACK
|
|
#define DEFAULT_SOUND_PACKET_VOLUME 255
|
|
#define DEFAULT_SOUND_PACKET_ATTENUATION 1.0
|
|
#endif
|
|
|
|
// !!! if this is changed, it much be changed in asm_i386.h too !!!
|
|
typedef struct {
|
|
int left;
|
|
int right;
|
|
} portable_samplepair_t;
|
|
|
|
typedef struct sfx_s {
|
|
char name[MAX_QPATH];
|
|
cache_user_t cache;
|
|
} sfx_t;
|
|
|
|
// !!! if this is changed, it much be changed in asm_i386.h too !!!
|
|
typedef struct {
|
|
int length;
|
|
int loopstart;
|
|
int speed;
|
|
int width;
|
|
int stereo;
|
|
byte data[0]; // variable sized
|
|
} sfxcache_t;
|
|
|
|
typedef struct {
|
|
int channels;
|
|
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 leftvol; // 0-255 volume
|
|
int rightvol; // 0-255 volume
|
|
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; //
|
|
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 channels;
|
|
int loopstart;
|
|
int samples;
|
|
int dataofs; // chunk starts this many bytes from file start
|
|
} wavinfo_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_ClearBuffer(void);
|
|
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_BeginPrecaching(void);
|
|
void S_EndPrecaching(void);
|
|
void S_PaintChannels(int endtime);
|
|
void S_InitPaintChannels(void);
|
|
|
|
// initializes cycling through a DMA buffer and returns information on it
|
|
qboolean SNDDMA_Init(void);
|
|
|
|
// gets the current DMA position
|
|
int SNDDMA_GetDMAPos(void);
|
|
|
|
/* Lock and unlock the DMA sound buffer */
|
|
int SNDDMA_LockBuffer(void);
|
|
void SNDDMA_UnlockBuffer(void);
|
|
|
|
// shutdown the DMA xfer.
|
|
void SNDDMA_Shutdown(void);
|
|
|
|
// ====================================================================
|
|
// User-setable variables
|
|
// ====================================================================
|
|
|
|
#define MAX_CHANNELS 128
|
|
#define MAX_DYNAMIC_CHANNELS 8
|
|
|
|
extern channel_t channels[MAX_CHANNELS];
|
|
|
|
// 0 to MAX_DYNAMIC_CHANNELS-1 = normal entity sounds
|
|
// MAX_DYNAMIC_CHANNELS to MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS -1 = water, etc
|
|
// MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS to total_channels = static sounds
|
|
|
|
extern int total_channels;
|
|
|
|
extern int paintedtime;
|
|
extern volatile dma_t *shm;
|
|
extern volatile dma_t sn;
|
|
|
|
extern cvar_t loadas8bit;
|
|
extern cvar_t bgmvolume;
|
|
extern cvar_t volume;
|
|
|
|
extern int snd_blocked;
|
|
|
|
void S_LocalSound(char *s);
|
|
sfxcache_t *S_LoadSound(sfx_t *s);
|
|
|
|
wavinfo_t GetWavinfo(char *name, byte *wav, int wavlength);
|
|
|
|
void SND_InitScaletable(void);
|
|
void SNDDMA_Submit(void);
|
|
|
|
void S_AmbientOff(void);
|
|
void S_AmbientOn(void);
|
|
|
|
#endif /* SOUND_H */
|