void CSoundRender_TargetA::update ()
{
inherited::update();
ALint processed;
// Get status
A_CHK (alGetSourcei(pSource, AL_BUFFERS_PROCESSED, &processed));
if (processed > 0){
while (processed){
ALuint BufferID;
A_CHK (alSourceUnqueueBuffers(pSource, 1, &BufferID));
fill_block(BufferID);
A_CHK (alSourceQueueBuffers(pSource, 1, &BufferID));
processed--;
}
}else{
// processed == 0
// check play status -- if stopped then queue is not being filled fast enough
ALint state;
A_CHK (alGetSourcei(pSource, AL_SOURCE_STATE, &state));
if (state != AL_PLAYING){
// Log ("Queuing underrun detected.");
A_CHK (alSourcePlay(pSource));
}
}
}
void CSoundRender_TargetA::render ()
{
for (u32 buf_idx=0; buf_idx<sdef_target_count; buf_idx++)
fill_block (pBuffers[buf_idx]);
A_CHK (alSourceQueueBuffers (pSource, sdef_target_count, pBuffers));
A_CHK (alSourcePlay (pSource));
inherited::render();
}
void CSoundRender_TargetA::stop ()
{
if (rendering)
{
A_CHK (alSourceStop(pSource));
A_CHK (alSourcei (pSource, AL_BUFFER, NULL));
A_CHK (alSourcei (pSource, AL_SOURCE_RELATIVE, TRUE));
}
inherited::stop ();
}
void CSoundRender_TargetA::rewind ()
{
inherited::rewind();
A_CHK (alSourceStop(pSource));
A_CHK (alSourcei (pSource, AL_BUFFER, NULL));
for (u32 buf_idx=0; buf_idx<sdef_target_count; buf_idx++)
fill_block (pBuffers[buf_idx]);
A_CHK (alSourceQueueBuffers (pSource, sdef_target_count, pBuffers));
A_CHK (alSourcePlay (pSource));
}
void CSoundRender_TargetA::_destroy ()
{
// clean up target
if (alIsSource(pSource))
alDeleteSources (1, &pSource);
A_CHK(alDeleteBuffers (sdef_target_count, pBuffers));
}
void CSoundRender_TargetA::fill_block (ALuint BufferID)
{
R_ASSERT (m_pEmitter);
m_pEmitter->fill_block(&g_target_temp_data.front(),buf_block);
ALuint format = (m_pEmitter->source()->m_wformat.nChannels==1)?AL_FORMAT_MONO16:AL_FORMAT_STEREO16;
A_CHK (alBufferData(BufferID, format, &g_target_temp_data.front(), buf_block, m_pEmitter->source()->m_wformat.nSamplesPerSec));
}
void CSoundRender_TargetA::fill_block (ALuint BufferID)
{
#pragma todo("check why pEmitter is NULL")
if (0==pEmitter) return;
pEmitter->fill_block(&g_target_temp_data.front(),buf_block);
ALuint format = (wfx.nChannels==1)?AL_FORMAT_MONO16:AL_FORMAT_STEREO16;
A_CHK (alBufferData(BufferID, format, &g_target_temp_data.front(), buf_block, wfx.nSamplesPerSec));
}
BOOL CSoundRender_TargetA::_initialize ()
{
inherited::_initialize();
// initialize buffer
A_CHK(alGenBuffers (sdef_target_count, pBuffers));
alGenSources (1, &pSource);
ALenum error = alGetError();
if (AL_NO_ERROR==error){
A_CHK(alSourcei (pSource, AL_LOOPING, AL_FALSE));
A_CHK(alSourcef (pSource, AL_MIN_GAIN, 0.f));
A_CHK(alSourcef (pSource, AL_MAX_GAIN, 1.f));
A_CHK(alSourcef (pSource, AL_GAIN, cache_gain));
A_CHK(alSourcef (pSource, AL_PITCH, cache_pitch));
return TRUE;
}else{
Msg ("! sound: OpenAL: Can't create source. Error: %s.",(LPCSTR)alGetString(error));
return FALSE;
}
}
void CSoundRender_TargetA::fill_parameters()
{
CSoundRender_Emitter* SE = pEmitter; VERIFY(SE);
inherited::fill_parameters();
// 3D params
VERIFY2(pEmitter,SE->source->file_name());
A_CHK(alSourcef (pSource, AL_REFERENCE_DISTANCE, pEmitter->p_source.min_distance));
VERIFY2(pEmitter,SE->source->file_name());
A_CHK(alSourcef (pSource, AL_MAX_DISTANCE, pEmitter->p_source.max_distance));
VERIFY2(pEmitter,SE->source->file_name ());
A_CHK(alSource3f(pSource, AL_POSITION, pEmitter->p_source.position.x,pEmitter->p_source.position.y,-pEmitter->p_source.position.z));
VERIFY2(pEmitter,SE->source->file_name());
A_CHK(alSourcei (pSource, AL_SOURCE_RELATIVE, pEmitter->b2D));
A_CHK(alSourcef (pSource, AL_ROLLOFF_FACTOR, psSoundRolloff));
VERIFY2(pEmitter,SE->source->file_name());
float _gain = pEmitter->smooth_volume; clamp (_gain,EPS_S,1.f);
if (!fsimilar(_gain,cache_gain)){
cache_gain = _gain;
A_CHK(alSourcef (pSource, AL_GAIN, _gain));
}
VERIFY2(pEmitter,SE->source->file_name());
float _pitch = pEmitter->p_source.freq; clamp (_pitch,EPS_L,2.f);
if (!fsimilar(_pitch,cache_pitch)){
cache_pitch = _pitch;
A_CHK(alSourcef (pSource, AL_PITCH, _pitch));
}
VERIFY2(pEmitter,SE->source->file_name());
}
