void alGetSourcef(ALuint source, ALenum param, ALfloat *value)
{
DEBUGLOGCALL(LCF_OPENAL);
if (value == nullptr) {
return;
}
AudioSource* as = audiocontext.getSource(source);
if (as == nullptr)
return;
AudioBuffer* ab;
switch(param) {
case AL_GAIN:
*value = as->volume;
debuglog(LCF_OPENAL, " Get gain of ", *value);
break;
case AL_PITCH:
case AL_MIN_GAIN:
case AL_MAX_GAIN:
case AL_MAX_DISTANCE:
case AL_ROLLOFF_FACTOR:
case AL_CONE_OUTER_GAIN:
case AL_CONE_INNER_ANGLE:
case AL_CONE_OUTER_ANGLE:
case AL_REFERENCE_DISTANCE:
debuglog(LCF_OPENAL, "Operation not supported");
break;
case AL_SEC_OFFSET:
/* We fetch the buffer format of the source.
* Normally, all buffers from a queue share the exact same format.
*/
if (! as->buffer_queue.empty()) {
ab = as->buffer_queue[0];
ALfloat pos = (ALfloat) as->getPosition();
pos /= (ALfloat) ab->frequency;
*value = pos;
debuglog(LCF_OPENAL, " Get position of ", *value, " seconds");
}
break;
case AL_SAMPLE_OFFSET:
*value = (ALfloat) as->getPosition();
debuglog(LCF_OPENAL, " Get position of ", *value, " samples");
break;
case AL_BYTE_OFFSET:
/* We fetch the buffer format of the source.
* Normally, all buffers from a queue share the exact same format.
*/
if (! as->buffer_queue.empty()) {
ab = as->buffer_queue[0];
ALfloat pos = (ALfloat) as->getPosition();
pos *= (ALfloat) ab->alignSize;
*value = pos;
debuglog(LCF_OPENAL, " Get position of ", *value, " bytes");
}
break;
default:
ALSETERROR(AL_INVALID_OPERATION);
return;
}
}
