boo/lib/audiodev/AudioVoiceEngine.cpp

126 lines
4.2 KiB
C++

#include "lib/audiodev/AudioVoiceEngine.hpp"
#include <cassert>
#include <cstring>
namespace boo {
BaseAudioVoiceEngine::~BaseAudioVoiceEngine() {
m_mainSubmix.reset();
assert(m_voiceHead == nullptr && "Dangling voices detected");
assert(m_submixHead == nullptr && "Dangling submixes detected");
}
template <typename T>
void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, T* dataOut) {
if (dataOut)
memset(dataOut, 0, sizeof(T) * frames * m_mixInfo.m_channelMap.m_channelCount);
if (m_ltRtProcessing) {
size_t sampleCount = m_5msFrames * 5;
if (_getLtRtIn<T>().size() < sampleCount)
_getLtRtIn<T>().resize(sampleCount);
m_mainSubmix->_getRedirect<T>() = _getLtRtIn<T>().data();
} else {
m_mainSubmix->_getRedirect<T>() = dataOut;
}
if (m_submixesDirty) {
m_linearizedSubmixes = m_mainSubmix->_linearizeC3();
m_submixesDirty = false;
}
size_t remFrames = frames;
while (remFrames) {
size_t thisFrames;
if (remFrames < m_5msFrames) {
thisFrames = remFrames;
if (m_engineCallback)
m_engineCallback->on5MsInterval(*this, thisFrames / double(m_5msFrames) * 5.0 / 1000.0);
} else {
thisFrames = m_5msFrames;
if (m_engineCallback)
m_engineCallback->on5MsInterval(*this, 5.0 / 1000.0);
}
if (m_ltRtProcessing)
std::fill(_getLtRtIn<T>().begin(), _getLtRtIn<T>().end(), 0.f);
for (auto it = m_linearizedSubmixes.rbegin(); it != m_linearizedSubmixes.rend(); ++it)
(*it)->_zeroFill<T>();
if (m_voiceHead)
for (AudioVoice& vox : *m_voiceHead)
if (vox.m_running)
vox.pumpAndMix<T>(thisFrames);
for (auto it = m_linearizedSubmixes.rbegin(); it != m_linearizedSubmixes.rend(); ++it)
(*it)->_pumpAndMix<T>(thisFrames);
remFrames -= thisFrames;
if (!dataOut)
continue;
if (m_ltRtProcessing) {
m_ltRtProcessing->Process(_getLtRtIn<T>().data(), dataOut, int(thisFrames));
m_mainSubmix->_getRedirect<T>() = _getLtRtIn<T>().data();
}
size_t sampleCount = thisFrames * m_mixInfo.m_channelMap.m_channelCount;
for (size_t i = 0; i < sampleCount; ++i)
dataOut[i] *= m_totalVol;
dataOut += sampleCount;
}
if (m_engineCallback)
m_engineCallback->onPumpCycleComplete(*this);
}
template void BaseAudioVoiceEngine::_pumpAndMixVoices<int16_t>(size_t frames, int16_t* dataOut);
template void BaseAudioVoiceEngine::_pumpAndMixVoices<int32_t>(size_t frames, int32_t* dataOut);
template void BaseAudioVoiceEngine::_pumpAndMixVoices<float>(size_t frames, float* dataOut);
void BaseAudioVoiceEngine::_resetSampleRate() {
if (m_voiceHead)
for (boo::AudioVoice& vox : *m_voiceHead)
vox._resetSampleRate(vox.m_sampleRateIn);
if (m_submixHead)
for (boo::AudioSubmix& smx : *m_submixHead)
smx._resetOutputSampleRate();
}
ObjToken<IAudioVoice> BaseAudioVoiceEngine::allocateNewMonoVoice(double sampleRate, IAudioVoiceCallback* cb,
bool dynamicPitch) {
return {new AudioVoiceMono(*this, cb, sampleRate, dynamicPitch)};
}
ObjToken<IAudioVoice> BaseAudioVoiceEngine::allocateNewStereoVoice(double sampleRate, IAudioVoiceCallback* cb,
bool dynamicPitch) {
return {new AudioVoiceStereo(*this, cb, sampleRate, dynamicPitch)};
}
ObjToken<IAudioSubmix> BaseAudioVoiceEngine::allocateNewSubmix(bool mainOut, IAudioSubmixCallback* cb, int busId) {
return {new AudioSubmix(*this, cb, busId, mainOut)};
}
void BaseAudioVoiceEngine::setCallbackInterface(IAudioVoiceEngineCallback* cb) { m_engineCallback = cb; }
void BaseAudioVoiceEngine::setVolume(float vol) { m_totalVol = vol; }
bool BaseAudioVoiceEngine::enableLtRt(bool enable) {
if (enable && m_mixInfo.m_channelMap.m_channelCount == 2 && m_mixInfo.m_channels == AudioChannelSet::Stereo)
m_ltRtProcessing = std::make_unique<LtRtProcessing>(m_5msFrames, m_mixInfo);
else
m_ltRtProcessing.reset();
return m_ltRtProcessing.operator bool();
}
const AudioVoiceEngineMixInfo& BaseAudioVoiceEngine::mixInfo() const { return m_mixInfo; }
const AudioVoiceEngineMixInfo& BaseAudioVoiceEngine::clientMixInfo() const {
return m_ltRtProcessing ? m_ltRtProcessing->inMixInfo() : m_mixInfo;
}
} // namespace boo