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