void C4SoundModifier::ApplyTo(ALuint source)
{
// apply slot to source if valid
#if defined(HAVE_ALEXT)
if (slot) alSource3i(source, AL_AUXILIARY_SEND_FILTER, slot, 0, AL_FILTER_NULL);
#endif
}
void CSoundSource::PlayStream(IAudioChannel* channel, const std::string& file, float volume)
{
//! stop any current playback
Stop();
if (!curStream.Valid())
curStream = COggStream(id);
//! setup OpenAL params
curChannel = channel;
curVolume = volume;
in3D = false;
if (efxEnabled) {
alSource3i(id, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
alSourcei(id, AL_DIRECT_FILTER, AL_FILTER_NULL);
efxEnabled = false;
}
alSource3f(id, AL_POSITION, 0.0f, 0.0f, 0.0f);
alSourcef(id, AL_GAIN, volume);
alSourcef(id, AL_PITCH, globalPitch);
alSource3f(id, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
alSource3f(id, AL_DIRECTION, 0.0f, 0.0f, 0.0f);
alSourcef(id, AL_ROLLOFF_FACTOR, 0.0f);
alSourcei(id, AL_SOURCE_RELATIVE, AL_TRUE);
// COggStreams only appends buffers, giving errors when a buffer of another format is still assigned
alSourcei(id, AL_BUFFER, AL_NONE);
curStream.Play(file, volume);
curStream.Update();
CheckError("CSoundSource::Update");
}
/* Creates a new player object, and allocates the needed OpenAL source and
* buffer objects. Error checking is simplified for the purposes of this
* example, and will cause an abort if needed. */
static StreamPlayer *NewPlayer(void)
{
StreamPlayer *player;
player = malloc(sizeof(*player));
assert(player != NULL);
memset(player, 0, sizeof(*player));
/* Generate the buffers and source */
alGenBuffers(NUM_BUFFERS, player->buffers);
assert(alGetError() == AL_NO_ERROR && "Could not create buffers");
alGenSources(1, &player->source);
assert(alGetError() == AL_NO_ERROR && "Could not create source");
/* Set parameters so mono sources play out the front-center speaker and
* won't distance attenuate. */
alSource3i(player->source, AL_POSITION, 0, 0, -1);
alSourcei(player->source, AL_SOURCE_RELATIVE, AL_TRUE);
alSourcei(player->source, AL_ROLLOFF_FACTOR, 0);
assert(alGetError() == AL_NO_ERROR && "Could not set source parameters");
return player;
}
void StreamTrack::unsetFX()
{
// Remove any audio sends and direct filters from channel.
alSourcei(m_source, AL_DIRECT_FILTER, AL_FILTER_NULL);
DEBUG_CHECK_AL_ERROR();
alSource3i(m_source, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
DEBUG_CHECK_AL_ERROR();
}
/**
* @brief Creates a group.
*/
int sound_al_createGroup( int size )
{
int i, j, id;
alGroup_t *g;
/* Get new ID. */
id = ++al_groupidgen;
/* Grow group list. */
al_ngroups++;
al_groups = realloc( al_groups, sizeof(alGroup_t) * al_ngroups );
g = &al_groups[ al_ngroups-1 ];
memset( g, 0, sizeof(alGroup_t) );
g->id = id;
g->state = VOICE_PLAYING;
g->speed = 1;
g->volume = 1.;
/* Allocate sources. */
g->sources = calloc( size, sizeof(ALuint) );
g->nsources = size;
/* Add some sources. */
for (i=0; i<size; i++) {
/* Make sure there's enough. */
if (source_nstack <= 0)
goto group_err;
/* Pull one off the stack. */
source_nstack--;
g->sources[i] = source_stack[source_nstack];
/* Disable EFX, they don't affect groups. */
if (al_info.efx_reverb == AL_TRUE) {
alSourcef( g->sources[i], AL_AIR_ABSORPTION_FACTOR, 0. );
alSource3i( g->sources[i], AL_AUXILIARY_SEND_FILTER,
AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL );
}
/* Remove from total too. */
for (j=0; j<source_ntotal; j++) {
if (g->sources[i] == source_total[j]) {
source_ntotal--;
memmove( &source_total[j], &source_total[j+1],
sizeof(ALuint) * (source_ntotal - j) );
break;
}
}
}
return id;
group_err:
free(g->sources);
al_ngroups--;
return 0;
}
void al_source3i( int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[] ) {
if (NULL == alSource3i) mogl_glunsupported("alSource3i");
alSource3i((ALuint)mxGetScalar(prhs[0]),
(ALenum)mxGetScalar(prhs[1]),
(ALint)mxGetScalar(prhs[2]),
(ALint)mxGetScalar(prhs[3]),
(ALint)mxGetScalar(prhs[4]));
}
void COALExtProvider::SetEaxReverb(ALuint effect, ALuint slot, ALuint source, EFXEAXREVERBPROPERTIES& output)
{
if(!m_initialized)
return;
if(!SetEFXEAXReverbProperties(&output, effect))
return;
alAuxiliaryEffectSloti(slot, AL_EFFECTSLOT_EFFECT, effect);
alSource3i(source, AL_AUXILIARY_SEND_FILTER, slot, 0, AL_FILTER_NULL);
}
CSoundSource::~CSoundSource()
{
if (efxEnabled) {
alSource3i(id, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
alSourcei(id, AL_DIRECT_FILTER, AL_FILTER_NULL);
}
Stop();
alDeleteSources(1, &id);
CheckError("CSoundSource::~CSoundSource");
}
void StreamTrack::setFX()
{
// Reverb FX is applied globally through audio send. Since player can
// jump between adjacent rooms with different reverb info, we assign
// several (2 by default) interchangeable audio sends, which are switched
// every time current room reverb is changed.
ALuint slot = m_audioEngine->getFxManager().allocateSlot();
// Assign global reverb FX to channel.
alSource3i(m_source, AL_AUXILIARY_SEND_FILTER, slot, 0, AL_FILTER_NULL);
DEBUG_CHECK_AL_ERROR();
}
static int lua_alSource(lua_State* lua_state)
{
ALuint source_id;
ALenum enum_parameter;
int openal_primitive_type;
source_id = lua_tointeger(lua_state, 1);
enum_parameter = lua_tointeger(lua_state, 2);
openal_primitive_type = lua_getTypeForEnum(enum_parameter);
switch(openal_primitive_type)
{
case LUAOPENAL_BOOL_TYPE:
case LUAOPENAL_INT_TYPE:
{
alSourcei(source_id, enum_parameter, lua_tointeger(lua_state, 3));
break;
}
case LUAOPENAL_FLOAT_TYPE:
{
alSourcef(source_id, enum_parameter, lua_tonumber(lua_state, 3));
break;
}
case LUAOPENAL_INT_3_TYPE:
{
alSource3i(source_id, enum_parameter, lua_tointeger(lua_state, 3), lua_tointeger(lua_state, 4), lua_tointeger(lua_state, 5));
break;
}
case LUAOPENAL_FLOAT_3_TYPE:
{
alSource3f(source_id, enum_parameter, lua_tonumber(lua_state, 3), lua_tonumber(lua_state, 4), lua_tonumber(lua_state, 5));
break;
}
default:
{
/* TODO: Figure out how to handle OpenAL extensions. */
luaL_error(lua_state, "Unhandled parameter type for alSource*");
}
}
return 0;
}
void CSoundSource::Update()
{
if (asyncPlay.buffer != nullptr) {
Play(asyncPlay.channel, asyncPlay.buffer, asyncPlay.pos, asyncPlay.velocity, asyncPlay.volume, asyncPlay.relative);
asyncPlay = AsyncSoundItemData();
}
if (curPlaying != nullptr) {
if (in3D && (efxEnabled != efx->enabled)) {
alSourcef(id, AL_AIR_ABSORPTION_FACTOR, (efx->enabled) ? efx->GetAirAbsorptionFactor() : 0);
alSource3i(id, AL_AUXILIARY_SEND_FILTER, (efx->enabled) ? efx->sfxSlot : AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
alSourcei(id, AL_DIRECT_FILTER, (efx->enabled) ? efx->sfxFilter : AL_FILTER_NULL);
efxEnabled = efx->enabled;
efxUpdates = efx->updates;
}
if (heightRolloffModifier != curHeightRolloffModifier) {
curHeightRolloffModifier = heightRolloffModifier;
alSourcef(id, AL_ROLLOFF_FACTOR, ROLLOFF_FACTOR * curPlaying->rolloff * heightRolloffModifier);
}
if (!IsPlaying(true) || ((curPlaying->loopTime > 0) && (spring_gettime() > loopStop)))
Stop();
}
if (curStream.Valid()) {
if (curStream.IsFinished()) {
Stop();
} else {
curStream.Update();
CheckError("CSoundSource::Update");
}
}
if (efxEnabled && (efxUpdates != efx->updates)) {
//! airAbsorption & LowPass aren't auto updated by OpenAL on change, so we need to do it per source
alSourcef(id, AL_AIR_ABSORPTION_FACTOR, efx->GetAirAbsorptionFactor());
alSourcei(id, AL_DIRECT_FILTER, efx->sfxFilter);
efxUpdates = efx->updates;
}
}
void QOpenALEngine::openEFX() {
if (ALFWIsEFXSupported())
{
if (CreateAuxEffectSlot(&uiEffectSlot))
{
if (CreateEffect(&uiEffect, AL_EFFECT_EAXREVERB))
{
// ConvertReverbParameters(&eaxBathroom, &efxReverb);
efxReverb=eaxBathroom;
// Set the Effect parameters
if (!SetEFXEAXReverbProperties(&efxReverb, uiEffect))
return;
// Load Effect into Auxiliary Effect Slot
alAuxiliaryEffectSloti(uiEffectSlot, AL_EFFECTSLOT_EFFECT, uiEffect);
// Enable (non-filtered) Send from Source to Auxiliary Effect Slot
alSource3i(uiSource, AL_AUXILIARY_SEND_FILTER, uiEffectSlot, 0, AL_FILTER_NULL);
}
}
}
}
void Audio::effects(int source)
{
#ifdef WIN32
ALenum al_err;
alAuxiliaryEffectSloti(slot, AL_EFFECTSLOT_EFFECT, effect);
al_err = alGetError();
if (al_err != AL_NO_ERROR)
{
debugf("Unable to associate effect: %s\n", GetALErrorString(al_err));
return;
}
alSource3i(source, AL_AUXILIARY_SEND_FILTER, slot, 0, AL_FILTER_NULL);
al_err = alGetError();
if (al_err != AL_NO_ERROR)
{
debugf("Unable to associate slot: %s\n", GetALErrorString(al_err));
}
#endif
}
value lime_al_source3i (value source, value param, value value1, value value2, value value3) {
alSource3i (val_int (source), val_int (param), val_int (value1), val_int (value2), val_int (value3));
return alloc_null ();
}
//*****************************************************************************
// alSource3i
//*****************************************************************************
//
ALAPI ALvoid ALAPIENTRY alSource3i(ALuint sourceName, ALenum param, ALint v1, ALint v2, ALint v3)
{
AL_VOID_FXN(alSource3i(sourceName, param, v1, v2, v3));
}
void Sound::reverb(bool enable) {
if(enable)
alSource3i(source,AL_AUXILIARY_SEND_FILTER,uiEffectSlot,0,0);
else
alSource3i(source,AL_AUXILIARY_SEND_FILTER,AL_EFFECTSLOT_NULL,0,0);
}
void QALSource::setPosition(int px, int py, int pz)
{
alSource3i(d->source, AL_POSITION, px, py, pz);
}
void CSoundSource::Play(IAudioChannel* channel, SoundItem* item, float3 pos, float3 velocity, float volume, bool relative)
{
assert(!curStream.Valid());
assert(channel);
if (!item->PlayNow())
return;
Stop();
curVolume = volume;
curPlaying = item;
curChannel = channel;
alSourcei(id, AL_BUFFER, item->buffer->GetId());
alSourcef(id, AL_GAIN, volume * item->GetGain() * channel->volume);
alSourcef(id, AL_PITCH, item->GetPitch() * globalPitch);
velocity *= item->dopplerScale * ELMOS_TO_METERS;
alSource3f(id, AL_VELOCITY, velocity.x, velocity.y, velocity.z);
alSourcei(id, AL_LOOPING, (item->loopTime > 0) ? AL_TRUE : AL_FALSE);
loopStop = spring_gettime() + spring_msecs(item->loopTime);
if (relative || !item->in3D) {
in3D = false;
if (efxEnabled) {
alSource3i(id, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
alSourcei(id, AL_DIRECT_FILTER, AL_FILTER_NULL);
efxEnabled = false;
}
alSourcei(id, AL_SOURCE_RELATIVE, AL_TRUE);
alSourcef(id, AL_ROLLOFF_FACTOR, 0.f);
alSource3f(id, AL_POSITION, 0.0f, 0.0f, -1.0f * ELMOS_TO_METERS);
#ifdef __APPLE__
alSourcef(id, AL_REFERENCE_DISTANCE, referenceDistance * ELMOS_TO_METERS);
#endif
} else {
if (item->buffer->GetChannels() > 1) {
LOG_L(L_WARNING, "Can not play non-mono \"%s\" in 3d.",
item->buffer->GetFilename().c_str());
}
in3D = true;
if (efx->enabled) {
efxEnabled = true;
alSourcef(id, AL_AIR_ABSORPTION_FACTOR, efx->GetAirAbsorptionFactor());
alSource3i(id, AL_AUXILIARY_SEND_FILTER, efx->sfxSlot, 0, AL_FILTER_NULL);
alSourcei(id, AL_DIRECT_FILTER, efx->sfxFilter);
efxUpdates = efx->updates;
}
alSourcei(id, AL_SOURCE_RELATIVE, AL_FALSE);
pos *= ELMOS_TO_METERS;
alSource3f(id, AL_POSITION, pos.x, pos.y, pos.z);
curHeightRolloffModifier = heightRolloffModifier;
alSourcef(id, AL_ROLLOFF_FACTOR, ROLLOFF_FACTOR * item->rolloff * heightRolloffModifier);
#ifdef __APPLE__
alSourcef(id, AL_MAX_DISTANCE, 1000000.0f);
//! Max distance is too small by default on my Mac...
ALfloat gain = channel->volume * item->GetGain() * volume;
if (gain > 1.0f) {
//! OpenAL on Mac cannot handle AL_GAIN > 1 well, so we will adjust settings to get the same output with AL_GAIN = 1.
ALint model = alGetInteger(AL_DISTANCE_MODEL);
ALfloat rolloff = ROLLOFF_FACTOR * item->rolloff * heightRolloffModifier;
ALfloat ref = referenceDistance * ELMOS_TO_METERS;
if ((model == AL_INVERSE_DISTANCE_CLAMPED) || (model == AL_INVERSE_DISTANCE)) {
alSourcef(id, AL_REFERENCE_DISTANCE, ((gain - 1.0f) * ref / rolloff) + ref);
alSourcef(id, AL_ROLLOFF_FACTOR, (gain + rolloff - 1.0f) / gain);
alSourcef(id, AL_GAIN, 1.0f);
}
} else {
alSourcef(id, AL_REFERENCE_DISTANCE, referenceDistance * ELMOS_TO_METERS);
}
#endif
}
alSourcePlay(id);
if (item->buffer->GetId() == 0)
LOG_L(L_WARNING, "CSoundSource::Play: Empty buffer for item %s (file %s)", item->name.c_str(), item->buffer->GetFilename().c_str());
CheckError("CSoundSource::Play");
}
void QALSource::setVelocity(int vx, int vy, int vz)
{
alSource3i(d->source, AL_VELOCITY, vx, vy, vz);
}
ALvoid CDECL wine_alSource3i(ALuint sid, ALenum param, ALint value1, ALint value2, ALint value3)
{
alSource3i(sid, param, value1, value2, value3);
}
/* Sources methods */
static PyObject*
_sources_setprop (PyObject *self, PyObject *args)
{
long bufnum;
ALenum param;
PyObject *values;
char *type;
PropType ptype = INVALID;
if (!CONTEXT_IS_CURRENT (((PySources*)self)->context))
{
PyErr_SetString (PyExc_PyGameError, "source context is not current");
return NULL;
}
if (!PyArg_ParseTuple (args, "llO|s:set_prop", &bufnum, ¶m, &values,
&type))
return NULL;
if (type)
{
ptype = GetPropTypeFromStr (type);
if (ptype == INVALID)
{
PyErr_SetString (PyExc_RuntimeError,
"passing a sequence requires passing a type specifier");
return NULL;
}
}
if (PySequence_Check (values))
{
Py_ssize_t size, cnt;
if (!type)
{
PyErr_SetString (PyExc_RuntimeError,
"passing a sequence requires passing a type specifier");
return NULL;
}
if (ptype == INT || ptype == FLOAT)
{
PyErr_SetString (PyExc_TypeError,
"cannot use single value type and sequence together");
return NULL;
}
size = PySequence_Size (values);
switch (ptype)
{
case INT3:
case INTARRAY:
{
ALint *vals;
int tmp;
if (ptype == INT3 && size < 3)
{
PyErr_SetString (PyExc_ValueError,
"sequence too small for 'i3'");
return NULL;
}
vals = PyMem_New (ALint, size);
if (!vals)
return NULL;
for (cnt = 0; cnt < size; cnt++)
{
if (!IntFromSeqIndex (values, cnt, &tmp))
{
PyMem_Free (vals);
return NULL;
}
vals[cnt] = (ALint) tmp;
}
CLEAR_ALERROR_STATE ();
if (ptype == INT3)
alSource3i ((ALuint)bufnum, param, vals[0], vals[1], vals[2]);
else
alSourceiv ((ALuint)bufnum, param, vals);
PyMem_Free (vals);
/* Error will be set at the end */
break;
}
case FLOAT3:
case FLOATARRAY:
{
ALfloat *vals;
double tmp;
if (ptype == FLOAT3 && size < 3)
{
PyErr_SetString (PyExc_ValueError,
"sequence too small for 'f3'");
return NULL;
}
vals = PyMem_New (ALfloat, size);
if (!vals)
return NULL;
for (cnt = 0; cnt < size; cnt++)
{
if (!DoubleFromSeqIndex (values, cnt, &tmp))
{
PyMem_Free (vals);
return NULL;
}
vals[cnt] = (ALfloat) tmp;
}
CLEAR_ALERROR_STATE ();
if (ptype == FLOAT3)
alSource3f ((ALuint)bufnum, param, vals[0], vals[1], vals[2]);
else
alSourcefv ((ALuint)bufnum, param, vals);
PyMem_Free (vals);
/* Error will be set at the end */
break;
}
default:
PyErr_SetString (PyExc_TypeError, "unsupported value");
return NULL;
}
}
else
{
int ival = 0;
double fval = 0;
if (!type)
{
if (IntFromObj (values, &ival))
ptype = INT;
else
PyErr_Clear ();
if (DoubleFromObj (values, &fval))
ptype = FLOAT;
else
{
PyErr_Clear ();
PyErr_SetString (PyExc_TypeError, "unsupported value");
return NULL;
}
}
switch (ptype)
{
case INT:
if (!IntFromObj (values, &ival))
return NULL;
CLEAR_ALERROR_STATE ();
alSourcei ((ALuint)bufnum, param, (ALint) ival);
break;
case FLOAT:
if (!DoubleFromObj (values, &fval))
return NULL;
CLEAR_ALERROR_STATE ();
alSourcef ((ALuint)bufnum, param, (ALfloat) fval);
break;
default:
PyErr_SetString (PyExc_TypeError, "value type mismatch");
return NULL;
}
}
if (SetALErrorException (alGetError (), 0))
return NULL;
Py_RETURN_NONE;
}
void TestEffect::basicTest()
{
/*!
- create a source and try reverb and filter on it
*/
Sound::init() ;
ALuint source;
alGenSources(1,&source) ;
Implementation::OpenAL::Reader* reader = new Implementation::OpenAL::WavReader(source, "hit.wav", false, 1.1) ;
reader->onInit(0,0) ;
alSourcePlay(source);
Kernel::Timer timer ;
Kernel::Timer bip ;
//build effect slot
ALuint auxEffectSlot;
Implementation::OpenAL::alGenAuxiliaryEffectSlots(1, &auxEffectSlot);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
/* can't build more than 1 slot without sound card
ALuint auxEffectSlot2;
Implementation::OpenAL::alGenAuxiliaryEffectSlots(1, &auxEffectSlot2);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
*/
//build effect
ALuint effect;
Implementation::OpenAL::alGenEffects(1, &effect);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
//configure effect
Implementation::OpenAL::alEffecti(effect, AL_EFFECT_TYPE, AL_EFFECT_REVERB);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
Implementation::OpenAL::alEffectf(effect, AL_REVERB_DECAY_TIME, 2.0f);
//link effect to slot effect
Implementation::OpenAL::alAuxiliaryEffectSloti(auxEffectSlot, AL_EFFECTSLOT_EFFECT, effect);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
//create filter
ALuint filter;
Implementation::OpenAL::alGenFilters(1, &filter);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
//Try to create more than 1 filter
ALuint filters[32] = { 0 };
Implementation::OpenAL::alGenFilters(32, &filters[0]);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
Implementation::OpenAL::alFilteri(filter,AL_FILTER_TYPE,AL_FILTER_LOWPASS);
Implementation::OpenAL::alFilterf(filter, AL_LOWPASS_GAIN, 1.0f);
Implementation::OpenAL::alFilterf(filter, AL_LOWPASS_GAINHF, 0.0f);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
//Normal sound
while (timer.getSecond() <= 2)
{
if(bip.getSecond() > 1)
{
reader->update();
bip.reset();
}
}
//link source output 0 to effect slot without more filter
alSource3i(source, AL_AUXILIARY_SEND_FILTER, auxEffectSlot, 0, 0);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
timer.reset();
//Sound with reverb effect
while (timer.getSecond() <= 2)
{
if(bip.getSecond() > 1)
{
reader->update();
bip.reset();
}
}
//unlink effect
alSource3i(source,AL_AUXILIARY_SEND_FILTER,AL_EFFECTSLOT_NULL, 0, 0);
//link filter
alSourcei(source, AL_DIRECT_FILTER, filter);
timer.reset();
//Sound with low pass filter on main output
while (timer.getSecond() <= 2)
{
if(bip.getSecond() > 1)
{
reader->update();
bip.reset();
}
}
alSource3i(source, AL_AUXILIARY_SEND_FILTER, auxEffectSlot, 0, 0);
timer.reset();
//Sound with low pass filter and reverb effect
while (timer.getSecond() <= 2)
{
if(bip.getSecond() > 1)
{
reader->update();
bip.reset();
}
}
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
///
//unlink effect
alSource3i(source,AL_AUXILIARY_SEND_FILTER,AL_EFFECTSLOT_NULL, 0, 0);
//unlink filter
alSourcei(source, AL_DIRECT_FILTER, AL_FILTER_NULL);
//Filter for direct output , no pass
Implementation::OpenAL::alFilteri(filters[0],AL_FILTER_TYPE,AL_FILTER_LOWPASS);
Implementation::OpenAL::alFilterf(filters[0], AL_LOWPASS_GAIN, 0.0f);
Implementation::OpenAL::alFilterf(filters[0], AL_LOWPASS_GAINHF, 0.0f);
//Filter aux1 , all pass
Implementation::OpenAL::alFilteri(filters[1],AL_FILTER_TYPE,AL_FILTER_LOWPASS);
Implementation::OpenAL::alFilterf(filters[1], AL_LOWPASS_GAIN, 1.0f);
Implementation::OpenAL::alFilterf(filters[1], AL_LOWPASS_GAINHF, 1.0f);
alSourcei(source, AL_DIRECT_FILTER, filters[0]);
alSource3i(source, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, filters[1]);
//With just 1 auxEffectSlot there is just 1 auxiliary output for a source
//alSource3i(source, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 1, filters[2]);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
timer.reset();
//Sound with just direct output at 0 gain and aux0 output at 1.0 without effect
//Without auxEffectSlot there isn't any output
while (timer.getSecond() <= 2)
{
if(bip.getSecond() > 1)
{
reader->update();
bip.reset();
}
}
alSource3i(source, AL_AUXILIARY_SEND_FILTER, auxEffectSlot, 0, filters[1]);
CPPUNIT_ASSERT(alGetError() == AL_NO_ERROR) ;
timer.reset();
//Sound with just direct output at 0 gain and aux0 output at 1.0 with effect
//With auxEffectSlot there is an output
while (timer.getSecond() <= 2)
{
if(bip.getSecond() > 1)
{
reader->update();
bip.reset();
}
}
reader->onClose() ;
delete reader ;
Sound::close();
}
/**
* @brief Initializes the sound subsystem.
*
* @return 0 on success.
*/
int sound_al_init (void)
{
int ret;
const ALchar* dev;
ALuint s;
ALint freq;
ALint attribs[4] = { 0, 0, 0, 0 };
/* Default values. */
ret = 0;
/* we'll need a mutex */
sound_lock = SDL_CreateMutex();
soundLock();
/* Get the sound device. */
dev = alcGetString( NULL, ALC_DEFAULT_DEVICE_SPECIFIER );
/* opening the default device */
al_device = alcOpenDevice(NULL);
if (al_device == NULL) {
WARN("Unable to open default sound device");
ret = -1;
goto snderr_dev;
}
/* Query EFX extension. */
if (conf.al_efx) {
al_info.efx = alcIsExtensionPresent( al_device, "ALC_EXT_EFX" );
if (al_info.efx == AL_TRUE) {
attribs[0] = ALC_MAX_AUXILIARY_SENDS;
attribs[1] = 4;
}
}
else
al_info.efx = AL_FALSE;
/* Create the OpenAL context */
al_context = alcCreateContext( al_device, attribs );
if (sound_lock == NULL) {
WARN("Unable to create OpenAL context");
ret = -2;
goto snderr_ctx;
}
/* Clear the errors */
alGetError();
/* Set active context */
if (alcMakeContextCurrent( al_context )==AL_FALSE) {
WARN("Failure to set default context");
ret = -4;
goto snderr_act;
}
/* Get context information. */
alcGetIntegerv( al_device, ALC_FREQUENCY, sizeof(freq), &freq );
/* Try to enable EFX. */
if (al_info.efx == AL_TRUE)
al_enableEFX();
else {
al_info.efx_reverb = AL_FALSE;
al_info.efx_echo = AL_FALSE;
}
/* Allocate source for music. */
alGenSources( 1, &music_source );
/* Check for errors. */
al_checkErr();
/* Start allocating the sources - music has already taken his */
source_nstack = 0;
source_mstack = 0;
while (source_nstack < SOUND_MAX_SOURCES) {
if (source_mstack < source_nstack+1) { /* allocate more memory */
source_mstack += 32;
source_stack = realloc( source_stack, sizeof(ALuint) * source_mstack );
}
alGenSources( 1, &s );
source_stack[source_nstack] = s;
/* Distance model defaults. */
alSourcef( s, AL_MAX_DISTANCE, 5000. );
alSourcef( s, AL_ROLLOFF_FACTOR, 1. );
alSourcef( s, AL_REFERENCE_DISTANCE, 500. );
/* Set the filter. */
if (al_info.efx == AL_TRUE)
alSource3i( s, AL_AUXILIARY_SEND_FILTER, efx_directSlot, 0, AL_FILTER_NULL );
/* Check for error. */
if (alGetError() == AL_NO_ERROR)
source_nstack++;
else
break;
}
/* Reduce ram usage. */
source_mstack = source_nstack;
source_stack = realloc( source_stack, sizeof(ALuint) * source_mstack );
/* Copy allocated sources to total stack. */
source_ntotal = source_mstack;
source_total = malloc( sizeof(ALuint) * source_mstack );
memcpy( source_total, source_stack, sizeof(ALuint) * source_mstack );
/* Copy allocated sources to all stack. */
source_nall = source_mstack;
source_all = malloc( sizeof(ALuint) * source_mstack );
memcpy( source_all, source_stack, sizeof(ALuint) * source_mstack );
/* Set up how sound works. */
alDistanceModel( AL_INVERSE_DISTANCE_CLAMPED );
alDopplerFactor( 1. );
sound_al_env( SOUND_ENV_NORMAL, 0. );
/* Check for errors. */
al_checkErr();
/* we can unlock now */
soundUnlock();
/* debug magic */
DEBUG("OpenAL started: %d Hz", freq);
DEBUG("Renderer: %s", alGetString(AL_RENDERER));
if (al_info.efx == AL_FALSE)
DEBUG("Version: %s without EFX", alGetString(AL_VERSION));
else
DEBUG("Version: %s with EFX %d.%d", alGetString(AL_VERSION),
al_info.efx_major, al_info.efx_minor);
DEBUG();
return 0;
/*
* error handling
*/
snderr_act:
alcDestroyContext( al_context );
snderr_ctx:
al_context = NULL;
alcCloseDevice( al_device );
snderr_dev:
al_device = NULL;
soundUnlock();
SDL_DestroyMutex( sound_lock );
sound_lock = NULL;
return ret;
}
/**
* @brief Initializes the sound subsystem.
*
* @return 0 on success.
*/
int sound_al_init (void)
{
int ret;
ALuint s;
ALint freq;
ALint attribs[4] = { 0, 0, 0, 0 };
/* Default values. */
ret = 0;
/* we'll need a mutex */
sound_lock = SDL_CreateMutex();
soundLock();
/* opening the default device */
al_device = alcOpenDevice(NULL);
if (al_device == NULL) {
WARN(_("Unable to open default sound device"));
ret = -1;
goto snderr_dev;
}
/* Query EFX extension. */
if (conf.al_efx) {
al_info.efx = alcIsExtensionPresent( al_device, "ALC_EXT_EFX" );
if (al_info.efx == AL_TRUE) {
attribs[0] = ALC_MAX_AUXILIARY_SENDS;
attribs[1] = 4;
}
}
else
al_info.efx = AL_FALSE;
/* Create the OpenAL context */
al_context = alcCreateContext( al_device, attribs );
if (al_context == NULL) {
WARN(_("Unable to create OpenAL context"));
ret = -2;
goto snderr_ctx;
}
/* Clear the errors */
alGetError();
/* Set active context */
if (alcMakeContextCurrent( al_context )==AL_FALSE) {
WARN(_("Failure to set default context"));
ret = -4;
goto snderr_act;
}
/* Get context information. */
alcGetIntegerv( al_device, ALC_FREQUENCY, sizeof(freq), &freq );
/* Try to enable EFX. */
if (al_info.efx == AL_TRUE)
al_enableEFX();
else {
al_info.efx_reverb = AL_FALSE;
al_info.efx_echo = AL_FALSE;
}
/* Allocate source for music. */
alGenSources( 1, &music_source );
/* Check for errors. */
al_checkErr();
/* Start allocating the sources - music has already taken his */
source_nstack = 0;
source_mstack = 0;
while (source_nstack < conf.snd_voices) {
if (source_mstack < source_nstack+1) { /* allocate more memory */
if (source_mstack == 0)
source_mstack = conf.snd_voices;
else
source_mstack *= 2;
source_stack = realloc( source_stack, sizeof(ALuint) * source_mstack );
}
alGenSources( 1, &s );
source_stack[source_nstack] = s;
/* How OpenAL distance model works:
*
* Clamped:
* gain = distance_function( CLAMP( AL_REFERENCE_DISTANCE, AL_MAX_DISTANCE, distance ) );
*
* Distance functions:
* AL_REFERENCE_DISTANCE
* * Inverse = ------------------------------------------------------------------------------
* AL_REFERENCE_DISTANCE + AL_ROLLOFF_FACTOR ( distance - AL_REFERENCE_DISTANCE )
*
* 1 - AL_ROLLOFF_FACTOR ( distance - AL_REFERENCE_DISTANCE )
* * Linear = ----------------------------------------------------------
* AL_MAX_DISTANCE - AL_REFERENCE_DISTANCE
*
* / distance \ -AL_ROLLOFF_FACTOR
* * Exponential = | --------------------- |
* \ AL_REFERENCE_DISTANCE /
*
*
* Some values:
*
* model falloff reference 100 1000 5000 10000
* linear 1 500 1.000 0.947 0.526 0.000
* inverse 1 500 1.000 0.500 0.100 0.050
* exponent 1 500 1.000 0.500 0.100 0.050
* inverse 0.5 500 1.000 0.667 0.182 0.095
* exponent 0.5 500 1.000 0.707 0.316 0.223
* inverse 2 500 1.000 0.333 0.052 0.026
* exponent 2 500 1.000 0.250 0.010 0.003
*/
alSourcef( s, AL_REFERENCE_DISTANCE, 500. ); /* Close distance to clamp at (doesn't get louder). */
alSourcef( s, AL_MAX_DISTANCE, 25000. ); /* Max distance to clamp at (doesn't get quieter). */
alSourcef( s, AL_ROLLOFF_FACTOR, 1. ); /* Determines how it drops off. */
/* Set the filter. */
if (al_info.efx == AL_TRUE)
alSource3i( s, AL_AUXILIARY_SEND_FILTER, efx_directSlot, 0, AL_FILTER_NULL );
/* Check for error. */
if (alGetError() == AL_NO_ERROR)
source_nstack++;
else
break;
}
/* Reduce ram usage. */
source_mstack = source_nstack;
source_stack = realloc( source_stack, sizeof(ALuint) * source_mstack );
/* Copy allocated sources to total stack. */
source_ntotal = source_mstack;
source_total = malloc( sizeof(ALuint) * source_mstack );
memcpy( source_total, source_stack, sizeof(ALuint) * source_mstack );
/* Copy allocated sources to all stack. */
source_nall = source_mstack;
source_all = malloc( sizeof(ALuint) * source_mstack );
memcpy( source_all, source_stack, sizeof(ALuint) * source_mstack );
/* Set up how sound works. */
alDistanceModel( AL_INVERSE_DISTANCE_CLAMPED ); /* Clamping is fundamental so it doesn't sound like crap. */
alDopplerFactor( 1. );
sound_al_env( SOUND_ENV_NORMAL, 0. );
/* Check for errors. */
al_checkErr();
/* we can unlock now */
soundUnlock();
/* debug magic */
DEBUG(_("OpenAL started: %d Hz"), freq);
DEBUG(_("Renderer: %s"), alGetString(AL_RENDERER));
if (al_info.efx == AL_FALSE)
DEBUG(_("Version: %s without EFX"), alGetString(AL_VERSION));
else
DEBUG(_("Version: %s with EFX %d.%d"), alGetString(AL_VERSION),
al_info.efx_major, al_info.efx_minor);
DEBUG("");
return ret;
/*
* error handling
*/
snderr_act:
alcDestroyContext( al_context );
snderr_ctx:
al_context = NULL;
alcCloseDevice( al_device );
snderr_dev:
al_device = NULL;
soundUnlock();
SDL_DestroyMutex( sound_lock );
sound_lock = NULL;
return ret;
}
void lime_al_source3i (int source, int param, int value1, int value2, int value3) {
alSource3i (source, param, value1, value2, value3);
}
