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#include "cryo/sound.h"
#include "audio/audiostream.h"
#include "audio/mixer.h"
#include "audio/decoders/raw.h"
namespace Cryo {
CSoundChannel::CSoundChannel(Audio::Mixer *mixer, unsigned int sampleRate, bool stereo) : _mixer(mixer), _sampleRate(sampleRate), _stereo(stereo) {
_audioStream = nullptr;
_volumeLeft = _volumeRight = Audio::Mixer::kMaxChannelVolume;
}
CSoundChannel::~CSoundChannel() {
stop();
if (_audioStream)
delete _audioStream;
}
void CSoundChannel::queueBuffer(byte *buffer, unsigned int size, bool playNow) {
if (playNow)
stop();
if (!_audioStream)
_audioStream = Audio::makeQueuingAudioStream(_sampleRate, _stereo);
_audioStream->queueBuffer(buffer, size, DisposeAfterUse::NO, Audio::FLAG_UNSIGNED);
if (!_mixer->isSoundHandleActive(_soundHandle)) {
_mixer->playStream(Audio::Mixer::kSFXSoundType, &_soundHandle, _audioStream, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO);
applyVolumeChange();
}
}
void CSoundChannel::stop() {
if (_mixer->isSoundHandleActive(_soundHandle))
_mixer->stopHandle(_soundHandle);
if (_audioStream) {
_audioStream->finish();
delete _audioStream;
_audioStream = nullptr;
}
}
unsigned int CSoundChannel::numQueued() {
return _audioStream ? _audioStream->numQueuedStreams() : 0;
}
unsigned int CSoundChannel::getVolume() {
return (_volumeRight + _volumeLeft) / 2;
}
void CSoundChannel::setVolume(unsigned int volumeLeft, unsigned int volumeRight) {
_volumeLeft = volumeLeft;
_volumeRight = volumeRight;
applyVolumeChange();
}
void CSoundChannel::setVolumeLeft(unsigned int volume) {
setVolume(volume, _volumeRight);
}
void CSoundChannel::setVolumeRight(unsigned int volume) {
setVolume(_volumeLeft, volume);
}
void CSoundChannel::applyVolumeChange() {
unsigned int volume = (_volumeRight + _volumeLeft) / 2;
int balance = (signed int)(_volumeRight - _volumeLeft) / 2;
_mixer->setChannelVolume(_soundHandle, volume);
_mixer->setChannelBalance(_soundHandle, balance);
}
}
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