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fteqw/engine/client/snd_al.c
Spoike 38305b4f06 Added OpenAL capture support. 
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4513 fc73d0e0-1445-4013-8a0c-d673dee63da5
2013-10-26 02:50:24 +00:00

1043 lines
36 KiB
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#include "quakedef.h"
/*
This is based on Jogi's OpenAL support.
Much of it is stripped, to try and get it clean/compliant.
Missing features:
FIXME: listener velocity calculations (currently ugly).
FIXME: does not track entity velocities, so no dopler (awkward, quake doesn't move playing sounds at all).
FIXME: no eax / efx (underwater reverb etc).
FIXME: a capture device would be useful (voice chat).
*/
#ifdef AVAIL_OPENAL
#if defined(_WIN32)
#define AL_APIENTRY __cdecl
#else
#define AL_APIENTRY
#endif
#define AL_API
typedef int ALint;
typedef unsigned int ALuint;
typedef float ALfloat;
typedef int ALenum;
typedef char ALchar;
typedef char ALboolean;
typedef int ALsizei;
typedef void ALvoid;
static dllhandle_t *openallib;
static qboolean openallib_tried;
static AL_API ALenum (AL_APIENTRY *palGetError)( void );
static AL_API void (AL_APIENTRY *palSourcef)( ALuint sid, ALenum param, ALfloat value );
static AL_API void (AL_APIENTRY *palSourcei)( ALuint sid, ALenum param, ALint value );
static AL_API void (AL_APIENTRY *palSourcePlayv)( ALsizei ns, const ALuint *sids );
static AL_API void (AL_APIENTRY *palSourceStopv)( ALsizei ns, const ALuint *sids );
static AL_API void (AL_APIENTRY *palSourcePlay)( ALuint sid );
static AL_API void (AL_APIENTRY *palSourceStop)( ALuint sid );
static AL_API void (AL_APIENTRY *palDopplerFactor)( ALfloat value );
static AL_API void (AL_APIENTRY *palGenBuffers)( ALsizei n, ALuint* buffers );
static AL_API ALboolean (AL_APIENTRY *palIsBuffer)( ALuint bid );
static AL_API void (AL_APIENTRY *palBufferData)( ALuint bid, ALenum format, const ALvoid* data, ALsizei size, ALsizei freq );
static AL_API void (AL_APIENTRY *palDeleteBuffers)( ALsizei n, const ALuint* buffers );
static AL_API void (AL_APIENTRY *palListenerfv)( ALenum param, const ALfloat* values );
static AL_API void (AL_APIENTRY *palSourcefv)( ALuint sid, ALenum param, const ALfloat* values );
static AL_API const ALchar* (AL_APIENTRY *palGetString)( ALenum param );
static AL_API void (AL_APIENTRY *palGenSources)( ALsizei n, ALuint* sources );
static AL_API void (AL_APIENTRY *palListenerf)( ALenum param, ALfloat value );
static AL_API void (AL_APIENTRY *palDeleteBuffers)( ALsizei n, const ALuint* buffers );
static AL_API void (AL_APIENTRY *palDeleteSources)( ALsizei n, const ALuint* sources );
static AL_API void (AL_APIENTRY *palSpeedOfSound)( ALfloat value );
static AL_API void (AL_APIENTRY *palDistanceModel)( ALenum distanceModel );
//needed for streaming
static AL_API void (AL_APIENTRY *palGetSourcei)(ALuint source, ALenum pname, ALint *value);
static AL_API void (AL_APIENTRY *palSourceQueueBuffers)(ALuint source, ALsizei n, ALuint* buffers);
static AL_API void (AL_APIENTRY *palSourceUnqueueBuffers)(ALuint source, ALsizei n, ALuint* buffers);
#define AL_NONE 0
#define AL_FALSE 0
#define AL_TRUE 1
#define AL_SOURCE_RELATIVE 0x202
#define AL_PITCH 0x1003
#define AL_POSITION 0x1004
#define AL_VELOCITY 0x1006
#define AL_LOOPING 0x1007
#define AL_BUFFER 0x1009
#define AL_GAIN 0x100A
#define AL_ORIENTATION 0x100F
#define AL_SOURCE_STATE 0x1010
#define AL_PLAYING 0x1012
#define AL_BUFFERS_PROCESSED 0x1016
#define AL_REFERENCE_DISTANCE 0x1020
#define AL_ROLLOFF_FACTOR 0x1021
#define AL_MAX_DISTANCE 0x1023
#define AL_SOURCE_TYPE 0x1027
#define AL_STREAMING 0x1029
#define AL_FORMAT_MONO8 0x1100
#define AL_FORMAT_MONO16 0x1101
#define AL_FORMAT_STEREO8 0x1102
#define AL_FORMAT_STEREO16 0x1103
#define AL_INVALID_NAME 0xA001
#define AL_INVALID_ENUM 0xA002
#define AL_INVALID_VALUE 0xA003
#define AL_INVALID_OPERATION 0xA004
#define AL_OUT_OF_MEMORY 0xA005
#define AL_VENDOR 0xB001
#define AL_VERSION 0xB002
#define AL_RENDERER 0xB003
#define AL_EXTENSIONS 0xB004
#define AL_DISTANCE_MODEL 0xD000
#define AL_INVERSE_DISTANCE 0xD001
#define AL_INVERSE_DISTANCE_CLAMPED 0xD002
#define AL_LINEAR_DISTANCE 0xD003
#define AL_LINEAR_DISTANCE_CLAMPED 0xD004
#define AL_EXPONENT_DISTANCE 0xD005
#define AL_EXPONENT_DISTANCE_CLAMPED 0xD006
#if defined(_WIN32)
#define ALC_APIENTRY __cdecl
#else
#define ALC_APIENTRY
#endif
#define ALC_API
typedef char ALCboolean;
typedef char ALCchar;
typedef int ALCint;
typedef unsigned int ALCuint;
typedef int ALCenum;
typedef size_t ALCsizei;
typedef struct ALCdevice_struct ALCdevice;
typedef struct ALCcontext_struct ALCcontext;
typedef void ALCvoid;
static ALC_API ALCdevice * (ALC_APIENTRY *palcOpenDevice)( const ALCchar *devicename );
static ALC_API ALCboolean (ALC_APIENTRY *palcCloseDevice)( ALCdevice *device );
static ALC_API ALCcontext * (ALC_APIENTRY *palcCreateContext)( ALCdevice *device, const ALCint* attrlist );
static ALC_API void (ALC_APIENTRY *palcDestroyContext)( ALCcontext *context );
static ALC_API ALCboolean (ALC_APIENTRY *palcMakeContextCurrent)( ALCcontext *context );
static ALC_API void (ALC_APIENTRY *palcProcessContext)( ALCcontext *context );
static ALC_API const ALCchar * (ALC_APIENTRY *palcGetString)( ALCdevice *device, ALCenum param );
static ALC_API ALCboolean (ALC_APIENTRY *palcIsExtensionPresent)( ALCdevice *device, const ALCchar *extname );
#define ALC_DEFAULT_DEVICE_SPECIFIER 0x1004
#define ALC_DEVICE_SPECIFIER 0x1005
#define ALC_EXTENSIONS 0x1006
#define ALC_ALL_DEVICES_SPECIFIER 0x1013 //ALC_ENUMERATE_ALL_EXT
//#include "AL/alut.h"
//#include "AL/al.h"
//#include "AL/alext.h"
//efx
#define AL_AUXILIARY_SEND_FILTER 0x20006
#define AL_FILTER_NULL 0x0000
#define AL_EFFECTSLOT_EFFECT 0x0001
#define AL_EFFECT_TYPE 0x8001
#define AL_EFFECT_REVERB 0x0001
#define AL_EFFECT_EAXREVERB 0x8000
#define AL_REVERB_DENSITY 0x0001
#define AL_REVERB_DIFFUSION 0x0002
#define AL_REVERB_GAIN 0x0003
#define AL_REVERB_GAINHF 0x0004
#define AL_REVERB_DECAY_TIME 0x0005
#define AL_REVERB_DECAY_HFRATIO 0x0006
#define AL_REVERB_REFLECTIONS_GAIN 0x0007
#define AL_REVERB_REFLECTIONS_DELAY 0x0008
#define AL_REVERB_LATE_REVERB_GAIN 0x0009
#define AL_REVERB_LATE_REVERB_DELAY 0x000A
#define AL_REVERB_AIR_ABSORPTION_GAINHF 0x000B
#define AL_REVERB_ROOM_ROLLOFF_FACTOR 0x000C
#define AL_REVERB_DECAY_HFLIMIT 0x000D
/* EAX Reverb effect parameters */
#define AL_EAXREVERB_DENSITY 0x0001
#define AL_EAXREVERB_DIFFUSION 0x0002
#define AL_EAXREVERB_GAIN 0x0003
#define AL_EAXREVERB_GAINHF 0x0004
#define AL_EAXREVERB_GAINLF 0x0005
#define AL_EAXREVERB_DECAY_TIME 0x0006
#define AL_EAXREVERB_DECAY_HFRATIO 0x0007
#define AL_EAXREVERB_DECAY_LFRATIO 0x0008
#define AL_EAXREVERB_REFLECTIONS_GAIN 0x0009
#define AL_EAXREVERB_REFLECTIONS_DELAY 0x000A
#define AL_EAXREVERB_REFLECTIONS_PAN 0x000B
#define AL_EAXREVERB_LATE_REVERB_GAIN 0x000C
#define AL_EAXREVERB_LATE_REVERB_DELAY 0x000D
#define AL_EAXREVERB_LATE_REVERB_PAN 0x000E
#define AL_EAXREVERB_ECHO_TIME 0x000F
#define AL_EAXREVERB_ECHO_DEPTH 0x0010
#define AL_EAXREVERB_MODULATION_TIME 0x0011
#define AL_EAXREVERB_MODULATION_DEPTH 0x0012
#define AL_EAXREVERB_AIR_ABSORPTION_GAINHF 0x0013
#define AL_EAXREVERB_HFREFERENCE 0x0014
#define AL_EAXREVERB_LFREFERENCE 0x0015
#define AL_EAXREVERB_ROOM_ROLLOFF_FACTOR 0x0016
#define AL_EAXREVERB_DECAY_HFLIMIT 0x0017
static AL_API void*(AL_APIENTRY *palGetProcAddress)(const ALchar *fname);
static AL_API void (AL_APIENTRY *palSource3i)(ALuint source, ALenum param, ALint value1, ALint value2, ALint value3);
static AL_API void (AL_APIENTRY *palAuxiliaryEffectSloti)(ALuint effectslot, ALenum param, ALint iValue);
static AL_API ALvoid (AL_APIENTRY *palGenAuxiliaryEffectSlots)(ALsizei n, ALuint *effectslots);
static AL_API ALvoid (AL_APIENTRY *palDeleteAuxiliaryEffectSlots)(ALsizei n, const ALuint *effectslots);
static AL_API ALvoid (AL_APIENTRY *palDeleteEffects)(ALsizei n, const ALuint *effects);
static AL_API ALvoid (AL_APIENTRY *palGenEffects)(ALsizei n, ALuint *effects);
static AL_API ALvoid (AL_APIENTRY *palEffecti)(ALuint effect, ALenum param, ALint iValue);
static AL_API ALvoid (AL_APIENTRY *palEffectiv)(ALuint effect, ALenum param, const ALint *piValues);
static AL_API ALvoid (AL_APIENTRY *palEffectf)(ALuint effect, ALenum param, ALfloat flValue);
static AL_API ALvoid (AL_APIENTRY *palEffectfv)(ALuint effect, ALenum param, const ALfloat *pflValues);
//capture-specific stuff
static ALC_API void (ALC_APIENTRY *palcGetIntegerv)( ALCdevice *device, ALCenum param, ALCsizei size, ALCint *data );
static ALC_API ALCdevice * (ALC_APIENTRY *palcCaptureOpenDevice)( const ALCchar *devicename, ALCuint frequency, ALCenum format, ALCsizei buffersize );
static ALC_API ALCboolean (ALC_APIENTRY *palcCaptureCloseDevice)( ALCdevice *device );
static ALC_API void (ALC_APIENTRY *palcCaptureStart)( ALCdevice *device );
static ALC_API void (ALC_APIENTRY *palcCaptureStop)( ALCdevice *device );
static ALC_API void (ALC_APIENTRY *palcCaptureSamples)( ALCdevice *device, ALCvoid *buffer, ALCsizei samples );
#define ALC_CAPTURE_DEVICE_SPECIFIER 0x310
#define ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER 0x311
#define ALC_CAPTURE_SAMPLES 0x312
#define SOUNDVARS "OpenAL variables"
extern sfx_t *known_sfx;
extern int loaded_sfx;
extern int num_sfx;
static qboolean openal_vars_initialized = false;
static void OnChangeALMaxDistance (cvar_t *var, char *value);
static void OnChangeALSpeedOfSound (cvar_t *var, char *value);
static void OnChangeALDopplerFactor (cvar_t *var, char *value);
static void OnChangeALDistanceModel (cvar_t *var, char *value);
/*
static void S_Init_f(void);
static void S_Info(void);
static void S_Shutdown_f(void);
*/
static cvar_t s_al_debug = CVAR("s_al_debug", "0");
static cvar_t s_al_max_distance = CVARFC("s_al_max_distance", "1000",0,OnChangeALMaxDistance);
static cvar_t s_al_speedofsound = CVARFC("s_al_speedofsound", "343.3",0,OnChangeALSpeedOfSound);
static cvar_t s_al_dopplerfactor = CVARFC("s_al_dopplerfactor", "3.0",0,OnChangeALDopplerFactor);
static cvar_t s_al_distancemodel = CVARFC("s_al_distancemodel", "2",0,OnChangeALDistanceModel);
static cvar_t s_al_rolloff_factor = CVAR("s_al_rolloff_factor", "1");
static cvar_t s_al_reference_distance = CVAR("s_al_reference_distance", "120");
static cvar_t s_al_velocityscale = CVAR("s_al_velocityscale", "1");
static cvar_t s_al_static_listener = CVAR("s_al_static_listener", "0"); //cheat
typedef struct
{
#define NUM_SOURCES MAX_CHANNELS
ALuint source[NUM_SOURCES];
ALCdevice *OpenAL_Device;
ALCcontext *OpenAL_Context;
ALfloat ListenPos[3];// = { 0.0, 0.0, 0.0 };
// Velocity of the listener.
ALfloat ListenVel[3];// = { 0.0, 0.0, 0.0 };
// Orientation of the listener. (first 3 elements are "at", second 3 are "up")
ALfloat ListenOri[6];// = { 0.0, 0.0, -1.0, 0.0, 1.0, 0.0 };
int cureffect;
ALuint effectslot; //the global reverb slot
ALuint effecttype[2]; //effect used when underwater
} oalinfo_t;
static void PrintALError(char *string)
{
ALenum err;
char *text = NULL;
if (!s_al_debug.value)
return;
err = palGetError();
switch(err)
{
case 0:
return;
case AL_INVALID_NAME:
text = "invalid name";
break;
case AL_INVALID_ENUM:
text = "invalid enum";
break;
case AL_INVALID_VALUE:
text = "invalid value";
break;
case AL_INVALID_OPERATION:
text = "invalid operation";
break;
case AL_OUT_OF_MEMORY:
text = "out of memory";
break;
default:
text = "unknown";
break;
}
Con_Printf("OpenAL - %s: %x: %s\n",string,err,text);
}
void OpenAL_LoadCache(unsigned int *bufptr, sfxcache_t *sc)
{
unsigned int fmt;
unsigned int size;
switch(sc->width)
{
case 1:
if (sc->numchannels == 2)
{
fmt = AL_FORMAT_STEREO8;
size = sc->length*2;
}
else
{
fmt = AL_FORMAT_MONO8;
size = sc->length*1;
}
break;
case 2:
if (sc->numchannels == 2)
{
fmt = AL_FORMAT_STEREO16;
size = sc->length*4;
}
else
{
fmt = AL_FORMAT_MONO16;
size = sc->length*2;
}
break;
default:
return;
}
PrintALError("pre Buffer Data");
palGenBuffers(1, bufptr);
/*openal is inconsistant and supports only 8bit unsigned or 16bit signed*/
if (sc->width == 1)
{
unsigned char *tmp = malloc(size);
char *src = sc->data;
int i;
for (i = 0; i < size; i++)
{
tmp[i] = src[i]+128;
}
palBufferData(*bufptr, fmt, tmp, size, sc->speed);
free(tmp);
}
else
palBufferData(*bufptr, fmt, sc->data, size, sc->speed);
//FIXME: we need to handle oal-oom error codes
PrintALError("Buffer Data");
}
void OpenAL_CvarInit(void)
{
Cvar_Register(&s_al_debug, SOUNDVARS);
Cvar_Register(&s_al_max_distance, SOUNDVARS);
Cvar_Register(&s_al_dopplerfactor, SOUNDVARS);
Cvar_Register(&s_al_distancemodel, SOUNDVARS);
Cvar_Register(&s_al_reference_distance, SOUNDVARS);
Cvar_Register(&s_al_rolloff_factor, SOUNDVARS);
Cvar_Register(&s_al_velocityscale, SOUNDVARS);
Cvar_Register(&s_al_static_listener, SOUNDVARS);
Cvar_Register(&s_al_speedofsound, SOUNDVARS);
}
extern float voicevolumemod;
static void OpenAL_ListenerUpdate(soundcardinfo_t *sc, vec3_t origin, vec3_t forward, vec3_t right, vec3_t up, vec3_t velocity)
{
oalinfo_t *oali = sc->handle;
VectorScale(velocity, s_al_velocityscale.value, oali->ListenVel);
VectorCopy(origin, oali->ListenPos);
oali->ListenOri[0] = forward[0];
oali->ListenOri[1] = forward[1];
oali->ListenOri[2] = forward[2];
oali->ListenOri[3] = up[0];
oali->ListenOri[4] = up[1];
oali->ListenOri[5] = up[2];
if (!s_al_static_listener.value)
{
palListenerf(AL_GAIN, volume.value*voicevolumemod);
palListenerfv(AL_POSITION, oali->ListenPos);
palListenerfv(AL_VELOCITY, oali->ListenVel);
palListenerfv(AL_ORIENTATION, oali->ListenOri);
}
}
//schanged says the sample has changed, otherwise its merely moved around a little, maybe changed in volume, but nothing that will restart it.
static void OpenAL_ChannelUpdate(soundcardinfo_t *sc, channel_t *chan, unsigned int schanged)
{
oalinfo_t *oali = sc->handle;
ALuint src;
sfx_t *sfx = chan->sfx;
float pitch;
int chnum = chan - sc->channel;
ALuint buf;
if (chnum >= NUM_SOURCES)
return;
src = oali->source[chnum];
if (!src)
{
//not currently playing. be prepared to create one
if (!sfx || chan->master_vol == 0)
return;
palGenSources(1, &src);
//unable to start a new sound source, give up.
if (!src)
{
//FIXME: find one which has already stopped and steal it.
Con_Printf("Out of OpenAL sources!\n");
return;
}
oali->source[chnum] = src;
schanged = true; //should normally be true anyway, but hey
}
PrintALError("pre start sound");
if (schanged && src)
palSourceStop(src);
//reclaim any queued buffers
palGetSourcei(src, AL_SOURCE_TYPE, &buf);
if (buf == AL_STREAMING)
{
for(;;)
{
palGetSourcei(src, AL_BUFFERS_PROCESSED, &buf);
if (!buf)
break;
palSourceUnqueueBuffers(src, 1, &buf);
palDeleteBuffers(1, &buf);
}
}
/*just wanted to stop it?*/
if (!sfx || chan->master_vol == 0)
{
if (src)
{
palDeleteSources(1, &src);
oali->source[chnum] = 0;
}
return;
}
if (schanged || sfx->decoder.decodedata)
{
if (!sfx->openal_buffer)
{
if (!S_LoadSound(sfx))
return; //can't load it
if (sfx->decoder.decodedata)
{
int offset;
sfxcache_t sbuf, *sc = sfx->decoder.decodedata(sfx, &sbuf, chan->pos>>PITCHSHIFT, 65536);
memcpy(&sbuf, sc, sizeof(sbuf));
//hack up the sound to offset it correctly
offset = (chan->pos>>PITCHSHIFT) - sbuf.soundoffset;
sbuf.data += offset * sc->width*sc->numchannels;
sbuf.length -= offset;
sbuf.soundoffset = 0;
//build a buffer with it and queue it up.
//buffer will be purged later on when its unqueued
OpenAL_LoadCache(&buf, &sbuf);
palSourceQueueBuffers(src, 1, &buf);
//yay
chan->pos += sbuf.length<<PITCHSHIFT;
palGetSourcei(src, AL_SOURCE_STATE, &buf);
if (buf != AL_PLAYING)
schanged = true;
}
else
{
OpenAL_LoadCache(&sfx->openal_buffer, sfx->decoder.buf);
palSourcei(src, AL_BUFFER, sfx->openal_buffer);
}
}
else
palSourcei(src, AL_BUFFER, sfx->openal_buffer);
}
palSourcef(src, AL_GAIN, chan->master_vol/255.0f);
if (chan->entnum == -1 || chan->entnum == cl.playerview[0].viewentity)
palSourcefv(src, AL_POSITION, vec3_origin);
else
palSourcefv(src, AL_POSITION, chan->origin);
palSourcefv(src, AL_VELOCITY, vec3_origin);
if (schanged)
{
pitch = (float)chan->rate/(1<<PITCHSHIFT);
palSourcef(src, AL_PITCH, pitch);
if (chan->entnum == -2) //don't do the underwater thing on static sounds. it sounds like arse with all those sources.
palSource3i(src, AL_AUXILIARY_SEND_FILTER, 0, 0, AL_FILTER_NULL);
else
palSource3i(src, AL_AUXILIARY_SEND_FILTER, oali->effectslot, 0, AL_FILTER_NULL);
palSourcei(src, AL_LOOPING, chan->looping?AL_TRUE:AL_FALSE);
if (chan->entnum == -1 || chan->entnum == cl.playerview[0].viewentity)
{
palSourcei(src, AL_SOURCE_RELATIVE, AL_TRUE);
// palSourcef(src, AL_ROLLOFF_FACTOR, 0.0f);
}
else
{
palSourcei(src, AL_SOURCE_RELATIVE, AL_FALSE);
// palSourcef(src, AL_ROLLOFF_FACTOR, s_al_rolloff_factor.value*chan->dist_mult);
}
switch(s_al_distancemodel.ival)
{
default:
palSourcef(src, AL_ROLLOFF_FACTOR, s_al_reference_distance.value);
palSourcef(src, AL_REFERENCE_DISTANCE, 1);
palSourcef(src, AL_MAX_DISTANCE, 1/chan->dist_mult); //clamp to the maximum distance you'd normally be allowed to hear... this is probably going to be annoying.
break;
case 2: //linear, mimic quake.
palSourcef(src, AL_ROLLOFF_FACTOR, 1);
palSourcef(src, AL_REFERENCE_DISTANCE, 0);
palSourcef(src, AL_MAX_DISTANCE, 1/chan->dist_mult);
break;
}
/*and start it up again*/
palSourcePlay(src);
}
PrintALError("post start sound");
}
/*
static void S_Info (void)
{
if (OpenAL_Device == NULL)
return;
Con_Printf("OpenAL Version : %s\n",palGetString(AL_VERSION));
Con_Printf("OpenAL Vendor : %s\n",palGetString(AL_VENDOR));
Con_Printf("OpenAL Renderer : %s\n",palGetString(AL_RENDERER));
if(palcIsExtensionPresent(NULL, (const ALCchar*)"ALC_ENUMERATION_EXT")==AL_TRUE)
{
Con_Printf("OpenAL Device : %s\n",palcGetString(OpenAL_Device,ALC_DEVICE_SPECIFIER));
}
Con_Printf("OpenAL Default Device : %s\n",palcGetString(OpenAL_Device,ALC_DEFAULT_DEVICE_SPECIFIER));
Con_Printf("OpenAL AL Extension : %s\n",palGetString(AL_EXTENSIONS));
Con_Printf("OpenAL ALC Extension : %s\n",palcGetString(NULL,ALC_EXTENSIONS));
}
*/
static qboolean OpenAL_InitLibrary(void)
{
static dllfunction_t openalfuncs[] =
{
{(void*)&palGetError, "alGetError"},
{(void*)&palSourcef, "alSourcef"},
{(void*)&palSourcei, "alSourcei"},
{(void*)&palSourcePlayv, "alSourcePlayv"},
{(void*)&palSourceStopv, "alSourceStopv"},
{(void*)&palSourcePlay, "alSourcePlay"},
{(void*)&palSourceStop, "alSourceStop"},
{(void*)&palDopplerFactor, "alDopplerFactor"},
{(void*)&palGenBuffers, "alGenBuffers"},
{(void*)&palIsBuffer, "alIsBuffer"},
{(void*)&palBufferData, "alBufferData"},
{(void*)&palDeleteBuffers, "alDeleteBuffers"},
{(void*)&palListenerfv, "alListenerfv"},
{(void*)&palSourcefv, "alSourcefv"},
{(void*)&palGetString, "alGetString"},
{(void*)&palGenSources, "alGenSources"},
{(void*)&palListenerf, "alListenerf"},
{(void*)&palDeleteSources, "alDeleteSources"},
{(void*)&palSpeedOfSound, "alSpeedOfSound"},
{(void*)&palDistanceModel, "alDistanceModel"},
{(void*)&palGetProcAddress, "alGetProcAddress"},
{(void*)&palGetSourcei, "alGetSourcei"},
{(void*)&palSourceQueueBuffers, "alSourceQueueBuffers"},
{(void*)&palSourceUnqueueBuffers, "alSourceUnqueueBuffers"},
{(void*)&palcOpenDevice, "alcOpenDevice"},
{(void*)&palcCloseDevice, "alcCloseDevice"},
{(void*)&palcCreateContext, "alcCreateContext"},
{(void*)&palcDestroyContext, "alcDestroyContext"},
{(void*)&palcMakeContextCurrent, "alcMakeContextCurrent"},
{(void*)&palcProcessContext, "alcProcessContext"},
{(void*)&palcGetString, "alcGetString"},
{(void*)&palcIsExtensionPresent, "alcIsExtensionPresent"},
{NULL}
};
if (!openallib_tried)
{
openallib_tried = true;
openallib = Sys_LoadLibrary("OpenAL32", openalfuncs);
}
return !!openallib;
}
static qboolean OpenAL_Init(soundcardinfo_t *sc, const char *devname)
{
oalinfo_t *oali = Z_Malloc(sizeof(oalinfo_t));
sc->handle = oali;
if (!OpenAL_InitLibrary())
{
Con_Printf("OpenAL is not installed\n");
return false;
}
if (oali->OpenAL_Context)
{
Con_Printf("OpenAL: only able to load one device at a time\n");
return false;
}
oali->OpenAL_Device = palcOpenDevice(devname);
if (oali->OpenAL_Device == NULL)
{
PrintALError("Could not init a sound device\n");
return false;
}
oali->OpenAL_Context = palcCreateContext(oali->OpenAL_Device, NULL);
if (!oali->OpenAL_Context)
return false;
palcMakeContextCurrent(oali->OpenAL_Context);
// palcProcessContext(oali->OpenAL_Context);
//S_Info();
//fixme...
memset(oali->source, 0, sizeof(oali->source));
PrintALError("alGensources for normal sources");
palListenerfv(AL_POSITION, oali->ListenPos);
palListenerfv(AL_VELOCITY, oali->ListenVel);
palListenerfv(AL_ORIENTATION, oali->ListenOri);
return true;
}
static void OnChangeALMaxDistance (cvar_t *var, char *oldvalue)
{
}
static void OnChangeALSpeedOfSound (cvar_t *var, char *value)
{
if (palSpeedOfSound)
palSpeedOfSound(var->value);
}
static void OnChangeALDopplerFactor (cvar_t *var, char *oldvalue)
{
if (palDopplerFactor)
palDopplerFactor(var->value);
}
static void OnChangeALDistanceModel (cvar_t *var, char *value)
{
if (!palDistanceModel)
return;
switch (var->ival)
{
case 0:
palDistanceModel(AL_INVERSE_DISTANCE);
break;
case 1:
palDistanceModel(AL_INVERSE_DISTANCE_CLAMPED);
break;
case 2:
palDistanceModel(AL_LINEAR_DISTANCE);
break;
case 3:
palDistanceModel(AL_LINEAR_DISTANCE_CLAMPED);
break;
case 4:
palDistanceModel(AL_EXPONENT_DISTANCE);
break;
case 5:
palDistanceModel(AL_EXPONENT_DISTANCE_CLAMPED);
break;
case 6:
palDistanceModel(AL_NONE);
break;
default:
Cvar_ForceSet(var, "0");
}
}
/*stub should not be called*/
static void *OpenAL_LockBuffer (soundcardinfo_t *sc, unsigned int *sampidx)
{
//Con_Printf("OpenAL: LockBuffer\n");
return NULL;
}
/*stub should not be called*/
static void OpenAL_UnlockBuffer (soundcardinfo_t *sc, void *buffer)
{
//Con_Printf("OpenAL: UnlockBuffer\n");
}
static void OpenAL_SetUnderWater (soundcardinfo_t *sc, qboolean underwater)
{
oalinfo_t *oali = sc->handle;
if (!oali->effectslot)
return;
//don't spam it
if (oali->cureffect == underwater)
return;
oali->cureffect = underwater;
PrintALError("preunderwater");
palAuxiliaryEffectSloti(oali->effectslot, AL_EFFECTSLOT_EFFECT, oali->effecttype[oali->cureffect]);
PrintALError("postunderwater");
//Con_Printf("OpenAL: SetUnderWater %i\n", underwater);
}
/*stub should not be called*/
static void OpenAL_Submit (soundcardinfo_t *sc, int start, int end)
{
//Con_Printf("OpenAL: Submit\n");
}
/*stub should not be called*/
static unsigned int OpenAL_GetDMAPos (soundcardinfo_t *sc)
{
//Con_Printf("OpenAL: GetDMAPos\n");
return 0;
}
static void OpenAL_Shutdown (soundcardinfo_t *sc)
{
oalinfo_t *oali = sc->handle;
int i;
palDeleteSources(NUM_SOURCES, oali->source);
/*make sure the buffers are cleared from the sound effects*/
for (i=0;i<num_sfx;i++)
{
if (known_sfx[i].openal_buffer)
{
palDeleteBuffers(1,&known_sfx[i].openal_buffer);
known_sfx[i].openal_buffer = 0;
}
}
palDeleteAuxiliaryEffectSlots(1, &oali->effectslot);
palDeleteEffects(1, &oali->effecttype[1]);
palcDestroyContext(oali->OpenAL_Context);
palcCloseDevice(oali->OpenAL_Device);
Z_Free(oali);
}
typedef struct {
float flDensity;
float flDiffusion;
float flGain;
float flGainHF;
float flGainLF;
float flDecayTime;
float flDecayHFRatio;
float flDecayLFRatio;
float flReflectionsGain;
float flReflectionsDelay;
float flReflectionsPan[3];
float flLateReverbGain;
float flLateReverbDelay;
float flLateReverbPan[3];
float flEchoTime;
float flEchoDepth;
float flModulationTime;
float flModulationDepth;
float flAirAbsorptionGainHF;
float flHFReference;
float flLFReference;
float flRoomRolloffFactor;
int iDecayHFLimit;
} EFXEAXREVERBPROPERTIES, *LPEFXEAXREVERBPROPERTIES;
#define EFX_REVERB_PRESET_PSYCHOTIC \
{ 0.0625f, 0.5000f, 0.3162f, 0.8404f, 1.0000f, 7.5600f, 0.9100f, 1.0000f, 0.4864f, 0.0200f, { 0.0000f, 0.0000f, 0.0000f }, 2.4378f, 0.0300f, { 0.0000f, 0.0000f, 0.0000f }, 0.2500f, 0.0000f, 4.0000f, 1.0000f, 0.9943f, 5000.0000f, 250.0000f, 0.0000f, 0x0 }
#define EFX_REVERB_PRESET_UNDERWATER \
{ 0.3645f, 1.0000f, 0.3162f, 0.0100f, 1.0000f, 1.4900f, 0.1000f, 1.0000f, 0.5963f, 0.0070f, { 0.0000f, 0.0000f, 0.0000f }, 7.0795f, 0.0110f, { 0.0000f, 0.0000f, 0.0000f }, 0.2500f, 0.0000f, 1.1800f, 0.3480f, 0.9943f, 5000.0000f, 250.0000f, 0.0000f, 0x1 }
ALuint OpenAL_LoadEffect(const EFXEAXREVERBPROPERTIES *reverb)
{
ALuint effect;
palGenEffects(1, &effect);
if(1)//alGetEnumValue("AL_EFFECT_EAXREVERB") != 0)
{
/* EAX Reverb is available. Set the EAX effect type then load the
* reverb properties. */
palEffecti(effect, AL_EFFECT_TYPE, AL_EFFECT_EAXREVERB);
palEffectf(effect, AL_EAXREVERB_DENSITY, reverb->flDensity);
palEffectf(effect, AL_EAXREVERB_DIFFUSION, reverb->flDiffusion);
palEffectf(effect, AL_EAXREVERB_GAIN, reverb->flGain);
palEffectf(effect, AL_EAXREVERB_GAINHF, reverb->flGainHF);
palEffectf(effect, AL_EAXREVERB_GAINLF, reverb->flGainLF);
palEffectf(effect, AL_EAXREVERB_DECAY_TIME, reverb->flDecayTime);
palEffectf(effect, AL_EAXREVERB_DECAY_HFRATIO, reverb->flDecayHFRatio);
palEffectf(effect, AL_EAXREVERB_DECAY_LFRATIO, reverb->flDecayLFRatio);
palEffectf(effect, AL_EAXREVERB_REFLECTIONS_GAIN, reverb->flReflectionsGain);
palEffectf(effect, AL_EAXREVERB_REFLECTIONS_DELAY, reverb->flReflectionsDelay);
palEffectfv(effect, AL_EAXREVERB_REFLECTIONS_PAN, reverb->flReflectionsPan);
palEffectf(effect, AL_EAXREVERB_LATE_REVERB_GAIN, reverb->flLateReverbGain);
palEffectf(effect, AL_EAXREVERB_LATE_REVERB_DELAY, reverb->flLateReverbDelay);
palEffectfv(effect, AL_EAXREVERB_LATE_REVERB_PAN, reverb->flLateReverbPan);
palEffectf(effect, AL_EAXREVERB_ECHO_TIME, reverb->flEchoTime);
palEffectf(effect, AL_EAXREVERB_ECHO_DEPTH, reverb->flEchoDepth);
palEffectf(effect, AL_EAXREVERB_MODULATION_TIME, reverb->flModulationTime);
palEffectf(effect, AL_EAXREVERB_MODULATION_DEPTH, reverb->flModulationDepth);
palEffectf(effect, AL_EAXREVERB_AIR_ABSORPTION_GAINHF, reverb->flAirAbsorptionGainHF);
palEffectf(effect, AL_EAXREVERB_HFREFERENCE, reverb->flHFReference);
palEffectf(effect, AL_EAXREVERB_LFREFERENCE, reverb->flLFReference);
palEffectf(effect, AL_EAXREVERB_ROOM_ROLLOFF_FACTOR, reverb->flRoomRolloffFactor);
palEffecti(effect, AL_EAXREVERB_DECAY_HFLIMIT, reverb->iDecayHFLimit);
}
else
{
/* No EAX Reverb. Set the standard reverb effect type then load the
* available reverb properties. */
palEffecti(effect, AL_EFFECT_TYPE, AL_EFFECT_REVERB);
palEffectf(effect, AL_REVERB_DENSITY, reverb->flDensity);
palEffectf(effect, AL_REVERB_DIFFUSION, reverb->flDiffusion);
palEffectf(effect, AL_REVERB_GAIN, reverb->flGain);
palEffectf(effect, AL_REVERB_GAINHF, reverb->flGainHF);
palEffectf(effect, AL_REVERB_DECAY_TIME, reverb->flDecayTime);
palEffectf(effect, AL_REVERB_DECAY_HFRATIO, reverb->flDecayHFRatio);
palEffectf(effect, AL_REVERB_REFLECTIONS_GAIN, reverb->flReflectionsGain);
palEffectf(effect, AL_REVERB_REFLECTIONS_DELAY, reverb->flReflectionsDelay);
palEffectf(effect, AL_REVERB_LATE_REVERB_GAIN, reverb->flLateReverbGain);
palEffectf(effect, AL_REVERB_LATE_REVERB_DELAY, reverb->flLateReverbDelay);
palEffectf(effect, AL_REVERB_AIR_ABSORPTION_GAINHF, reverb->flAirAbsorptionGainHF);
palEffectf(effect, AL_REVERB_ROOM_ROLLOFF_FACTOR, reverb->flRoomRolloffFactor);
palEffecti(effect, AL_REVERB_DECAY_HFLIMIT, reverb->iDecayHFLimit);
}
return effect;
}
static qboolean QDECL OpenAL_InitCard(soundcardinfo_t *sc, const char *devname)
{
oalinfo_t *oali;
//no default support, because we're buggy as fuck
if (!devname)
return false;
if (!devname || !*devname)
devname = palcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
Con_Printf("Initiating OpenAL: %s.\n", devname);
if (OpenAL_Init(sc, devname) == false)
{
Con_Printf(CON_ERROR "OpenAL init failed\n");
return false;
}
oali = sc->handle;
Con_DPrintf("OpenAL AL Extension : %s\n",palGetString(AL_EXTENSIONS));
Con_DPrintf("OpenAL ALC Extension : %s\n",palcGetString(oali->OpenAL_Device,ALC_EXTENSIONS));
sc->Lock = OpenAL_LockBuffer;
sc->Unlock = OpenAL_UnlockBuffer;
sc->SetWaterDistortion = OpenAL_SetUnderWater;
sc->Submit = OpenAL_Submit;
sc->Shutdown = OpenAL_Shutdown;
sc->GetDMAPos = OpenAL_GetDMAPos;
sc->ChannelUpdate = OpenAL_ChannelUpdate;
sc->ListenerUpdate = OpenAL_ListenerUpdate;
Q_snprintfz(sc->name, sizeof(sc->name), "%s", devname);
sc->inactive_sound = true;
sc->selfpainting = true;
Cvar_ForceCallback(&s_al_distancemodel);
Cvar_ForceCallback(&s_al_speedofsound);
Cvar_ForceCallback(&s_al_dopplerfactor);
Cvar_ForceCallback(&s_al_max_distance);
PrintALError("preeffects");
palSource3i = palGetProcAddress("alSource3i");
palAuxiliaryEffectSloti = palGetProcAddress("alAuxiliaryEffectSloti");
palGenAuxiliaryEffectSlots = palGetProcAddress("alGenAuxiliaryEffectSlots");
palDeleteAuxiliaryEffectSlots = palGetProcAddress("alDeleteAuxiliaryEffectSlots");
palDeleteEffects = palGetProcAddress("alDeleteEffects");
palGenEffects = palGetProcAddress("alGenEffects");
palEffecti = palGetProcAddress("alEffecti");
palEffectiv = palGetProcAddress("alEffectiv");
palEffectf = palGetProcAddress("alEffectf");
palEffectfv = palGetProcAddress("alEffectfv");
palGenAuxiliaryEffectSlots(1, &oali->effectslot);
oali->cureffect = 0;
oali->effecttype[0] = 0;
{
EFXEAXREVERBPROPERTIES uw = EFX_REVERB_PRESET_UNDERWATER;
oali->effecttype[1] = OpenAL_LoadEffect(&uw);
}
PrintALError("posteffects");
return true;
}
#define SDRVNAME "OpenAL"
static qboolean QDECL OpenAL_Enumerate(void (QDECL *callback)(const char *driver, const char *devicecode, const char *readabledevice))
{
const char *devnames;
if (!OpenAL_InitLibrary())
return true; //enumerate nothing if al is disabled
devnames = palcGetString(NULL, ALC_ALL_DEVICES_SPECIFIER);
if (!devnames)
devnames = palcGetString(NULL, ALC_DEVICE_SPECIFIER);
while(*devnames)
{
callback(SDRVNAME, devnames, va("OAL:%s", devnames));
devnames += strlen(devnames)+1;
}
return true;
}
sounddriver_t OPENAL_Output =
{
SDRVNAME,
OpenAL_InitCard,
OpenAL_Enumerate
};
#if defined(VOICECHAT)
qboolean OpenAL_InitCapture(void)
{
if (!OpenAL_InitLibrary())
return false;
//is there really much point checking for the name when the functions should exist or not regardless?
//if its not really supported, I would trust the open+enumerate operations to reliably fail. the functions are exported as actual symbols after all, not some hidden driver feature.
//it doesn't really matter if the default driver supports it, so long as one does, I guess.
//if (!palcIsExtensionPresent(NULL, "ALC_EXT_capture"))
// return false;
if(!palcCaptureOpenDevice)
{
palcGetIntegerv = Sys_GetAddressForName(openallib, "alcGetIntegerv");
palcCaptureOpenDevice = Sys_GetAddressForName(openallib, "alcCaptureOpenDevice");
palcCaptureStart = Sys_GetAddressForName(openallib, "alcCaptureStart");
palcCaptureSamples = Sys_GetAddressForName(openallib, "alcCaptureSamples");
palcCaptureStop = Sys_GetAddressForName(openallib, "alcCaptureStop");
palcCaptureCloseDevice = Sys_GetAddressForName(openallib, "alcCaptureCloseDevice");
}
return palcGetIntegerv&&palcCaptureOpenDevice&&palcCaptureStart&&palcCaptureSamples&&palcCaptureStop&&palcCaptureCloseDevice;
}
qboolean QDECL OPENAL_Capture_Enumerate (void (QDECL *callback) (const char *drivername, const char *devicecode, const char *readablename))
{
const char *devnames;
if (!OpenAL_InitCapture())
return true; //enumerate nothing if al is disabled
devnames = palcGetString(NULL, ALC_CAPTURE_DEVICE_SPECIFIER);
while(*devnames)
{
callback(SDRVNAME, devnames, va("OAL:%s", devnames));
devnames += strlen(devnames)+1;
}
return true;
}
//fte's capture api specifies mono 16.
void *QDECL OPENAL_Capture_Init (int samplerate, const char *device)
{
if (!device) //no default devices please, too buggy for that.
return NULL;
if (!OpenAL_InitCapture())
return NULL; //enumerate nothing if al is disabled
if (!device || !*device)
device = palcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER);
return palcCaptureOpenDevice(device, samplerate, AL_FORMAT_MONO16, 0.5*samplerate);
}
void QDECL OPENAL_Capture_Start (void *ctx)
{
ALCdevice *device = ctx;
palcCaptureStart(device);
}
unsigned int QDECL OPENAL_Capture_Update (void *ctx, unsigned char *buffer, unsigned int minbytes, unsigned int maxbytes)
{
#define samplesize sizeof(short)
ALCdevice *device = ctx;
int avail = 0;
palcGetIntegerv(device, ALC_CAPTURE_SAMPLES, sizeof(ALint), &avail);
if (avail*samplesize < minbytes)
return 0; //don't bother grabbing it if its below the threshold.
palcCaptureSamples(device, (ALCvoid *)buffer, avail);
return avail * samplesize;
}
void QDECL OPENAL_Capture_Stop (void *ctx)
{
ALCdevice *device = ctx;
palcCaptureStop(device);
}
void QDECL OPENAL_Capture_Shutdown (void *ctx)
{
ALCdevice *device = ctx;
palcCaptureCloseDevice(device);
}
snd_capture_driver_t OPENAL_Capture =
{
1,
SDRVNAME,
OPENAL_Capture_Enumerate,
OPENAL_Capture_Init,
OPENAL_Capture_Start,
OPENAL_Capture_Update,
OPENAL_Capture_Stop,
OPENAL_Capture_Shutdown
};
#endif
#endif
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