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Refactored audio supply dispatch across two passes

This commit is contained in:
Jack Andersen 2016-07-04 15:08:00 -10:00
parent fe78a675d7
commit 52cba61f76
5 changed files with 99 additions and 83 deletions
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1
include/amuse/BooBackend.hpp
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@ -22,6 +22,7 @@ class BooBackendVoice : public IBackendVoice
struct VoiceCallback : boo::IAudioVoiceCallback
{
BooBackendVoice& m_parent;
void preSupplyAudio(boo::IAudioVoice& voice, double dt);
size_t supplyAudio(boo::IAudioVoice& voice, size_t frames, int16_t* data);
VoiceCallback(BooBackendVoice& parent) : m_parent(parent) {}
} m_cb;

4
include/amuse/Envelope.hpp
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@ -21,10 +21,10 @@ public:
};
private:
State m_phase = State::Attack; /**< Current envelope state */
double m_attackTime = 0.02; /**< Time of attack in seconds */
double m_attackTime = 0.0; /**< Time of attack in seconds */
double m_decayTime = 0.0; /**< Time of decay in seconds */
double m_sustainFactor = 1.0; /**< Evaluated sustain percentage */
double m_releaseTime = 0.02; /**< Time of release in seconds */
double m_releaseTime = 0.0; /**< Time of release in seconds */
double m_releaseStartFactor = 0.0; /**< Level at whenever release event occurs */
double m_curTime = 0.0; /**< Current time of envelope stage in seconds */
bool m_adsrSet = false;

7
include/amuse/Voice.hpp
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@ -86,6 +86,7 @@ class Voice : public Entity
int32_t m_pitchWheelVal = 0; /**< Current resolved pitchwheel delta for control */
int32_t m_curPitch; /**< Current base pitch in cents */
bool m_pitchDirty = true; /**< m_curPitch has been updated and needs sending to voice */
bool m_needsSlew = false; /**< next _setTotalPitch will be slewed */
Envelope m_volAdsr; /**< Volume envelope */
double m_envelopeTime = -1.f; /**< time since last ENVELOPE command, -1 for no active volume-sweep */
@ -137,7 +138,7 @@ class Voice : public Entity
void _doKeyOff();
void _macroKeyOff();
void _macroSampleEnd();
bool _advanceSample(int16_t& samp, int32_t& curPitch);
void _advanceSample(int16_t& samp);
void _setTotalPitch(int32_t cents, bool slew);
bool _isRecursivelyDead();
void _bringOutYourDead();
@ -166,6 +167,10 @@ public:
Voice(Engine& engine, const AudioGroup& group, int groupId, int vid, bool emitter, Submix* smx);
Voice(Engine& engine, const AudioGroup& group, int groupId, ObjectId oid, int vid, bool emitter, Submix* smx);
/** Called before each supplyAudio invocation to prepare voice
* backend for possible parameter updates */
void preSupplyAudio(double dt);
/** Request specified count of audio frames (samples) from voice,
* internally advancing the voice stream */
size_t supplyAudio(size_t frames, int16_t* data);

6
lib/BooBackend.cpp
View File

@ -6,6 +6,12 @@
namespace amuse
{
void BooBackendVoice::VoiceCallback::preSupplyAudio(boo::IAudioVoice&,
double dt)
{
m_parent.m_clientVox.preSupplyAudio(dt);
}
size_t BooBackendVoice::VoiceCallback::supplyAudio(boo::IAudioVoice&,
size_t frames, int16_t* data)
{

160
lib/Voice.cpp
View File

@ -115,7 +115,7 @@ void Voice::_doKeyOff()
void Voice::_setTotalPitch(int32_t cents, bool slew)
{
//fprintf(stderr, "PITCH %d\n", cents);
//fprintf(stderr, "PITCH %d %d \n", cents, slew);
int32_t interval = cents - m_curSample->first.m_pitch * 100;
double ratio = std::exp2(interval / 1200.0);
m_sampleRate = m_curSample->first.m_sampleRate * ratio;
@ -199,7 +199,7 @@ static void ApplyVolume(float vol, int16_t& samp)
samp *= VolumeLUT[int(vol * 65536)];
}
bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
void Voice::_advanceSample(int16_t& samp)
{
double dt;
@ -223,7 +223,7 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
/* Apply total volume to sample using decibel scale */
ApplyVolume(l, samp);
return false;
return;
}
dt = 160.0 / m_sampleRate;
@ -232,7 +232,6 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
}
m_voiceTime += dt;
bool refresh = false;
/* Process active envelope */
if (m_envelopeTime >= 0.0)
@ -255,40 +254,6 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
/* Dynamically evaluate per-sample SoundMacro parameters */
float evalVol = m_state.m_volumeSel ? (m_state.m_volumeSel.evaluate(*this, m_state) / 2.f * m_curVol) : m_curVol;
bool panDirty = false;
if (m_state.m_panSel)
{
float evalPan = m_state.m_panSel.evaluate(*this, m_state);
if (evalPan != m_curPan)
{
m_curPan = evalPan;
panDirty = true;
}
}
if (m_state.m_spanSel)
{
float evalSpan = m_state.m_spanSel.evaluate(*this, m_state);
if (evalSpan != m_curSpan)
{
m_curSpan = evalSpan;
panDirty = true;
}
}
if (m_state.m_reverbSel)
{
float evalRev = m_state.m_reverbSel.evaluate(*this, m_state) / 2.f;
if (evalRev != m_curReverbVol)
{
m_curReverbVol = evalRev;
panDirty = true;
}
}
if (panDirty)
_setPan(m_curPan);
if (m_state.m_pitchWheelSel)
_setPitchWheel(m_state.m_pitchWheelSel.evaluate(*this, m_state));
/* Process user volume slew */
if (m_engine.m_ampMode == AmplitudeMode::PerSample)
{
@ -351,8 +316,70 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
/* Apply total volume to sample using decibel scale */
ApplyVolume(m_nextLevel, samp);
}
uint32_t Voice::_GetBlockSampleCount(SampleFormat fmt)
{
switch (fmt)
{
default:
return 1;
case Voice::SampleFormat::DSP:
return 14;
case Voice::SampleFormat::N64:
return 64;
}
}
void Voice::preSupplyAudio(double dt)
{
/* Process SoundMacro; bootstrapping sample if needed */
bool dead = m_state.advance(*this, dt);
/* Process per-block evaluators here */
if (m_state.m_pedalSel)
{
bool pedal = m_state.m_pedalSel.evaluate(*this, m_state) >= 1.f;
if (pedal != m_sustained)
setPedal(pedal);
}
bool panDirty = false;
if (m_state.m_panSel)
{
float evalPan = m_state.m_panSel.evaluate(*this, m_state);
if (evalPan != m_curPan)
{
m_curPan = evalPan;
panDirty = true;
}
}
if (m_state.m_spanSel)
{
float evalSpan = m_state.m_spanSel.evaluate(*this, m_state);
if (evalSpan != m_curSpan)
{
m_curSpan = evalSpan;
panDirty = true;
}
}
if (m_state.m_reverbSel)
{
float evalRev = m_state.m_reverbSel.evaluate(*this, m_state) / 2.f;
if (evalRev != m_curReverbVol)
{
m_curReverbVol = evalRev;
panDirty = true;
}
}
if (panDirty)
_setPan(m_curPan);
if (m_state.m_pitchWheelSel)
_setPitchWheel(m_state.m_pitchWheelSel.evaluate(*this, m_state));
/* Process active pan-sweep */
bool refresh = false;
if (m_panningTime >= 0.f)
{
m_panningTime += dt;
@ -383,7 +410,7 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
}
/* Calculate total pitch */
newPitch = m_curPitch;
int32_t newPitch = m_curPitch;
refresh |= m_pitchDirty;
m_pitchDirty = false;
if (m_portamentoTime >= 0.f)
@ -423,20 +450,19 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
refresh = true;
}
/* True if backend voice needs reconfiguration before next sample */
return refresh;
if (m_curSample && refresh)
{
_setTotalPitch(newPitch + m_pitchSweep1 + m_pitchSweep2 + m_pitchWheelVal, m_needsSlew);
m_needsSlew = true;
}
uint32_t Voice::_GetBlockSampleCount(SampleFormat fmt)
if (dead && (!m_curSample || m_voxState == VoiceState::KeyOff) &&
m_sampleEndTrap.macroId == 0xffff &&
m_messageTrap.macroId == 0xffff &&
(!m_curSample || (m_curSample && m_volAdsr.isComplete())))
{
switch (fmt)
{
default:
return 1;
case Voice::SampleFormat::DSP:
return 14;
case Voice::SampleFormat::N64:
return 64;
m_voxState = VoiceState::Dead;
m_backendVoice->stop();
}
}
@ -445,23 +471,10 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
uint32_t samplesRem = samples;
size_t samplesProc = 0;
/* Process SoundMacro; bootstrapping sample if needed */
bool dead = m_state.advance(*this, samples / m_sampleRate);
/* Process per-block evaluators here */
if (m_state.m_pedalSel)
{
bool pedal = m_state.m_pedalSel.evaluate(*this, m_state) >= 1.f;
if (pedal != m_sustained)
setPedal(pedal);
}
if (m_curSample)
{
uint32_t blockSampleCount = _GetBlockSampleCount(m_curFormat);
uint32_t block;
int32_t curPitch = m_curPitch;
bool refresh = false;
bool looped = true;
while (looped && samplesRem)
@ -517,7 +530,7 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
{
++samplesProc;
++m_curSamplePos;
refresh |= _advanceSample(data[i], curPitch);
_advanceSample(data[i]);
}
samplesRem -= decSamples;
@ -582,7 +595,7 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
{
++samplesProc;
++m_curSamplePos;
refresh |= _advanceSample(data[i], curPitch);
_advanceSample(data[i]);
}
samplesRem -= decSamples;
@ -598,22 +611,12 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
break;
}
}
if (refresh)
_setTotalPitch(curPitch + m_pitchSweep1 + m_pitchSweep2 + m_pitchWheelVal, true);
}
else
memset(data, 0, sizeof(int16_t) * samples);
if (dead && (!m_curSample || m_voxState == VoiceState::KeyOff) &&
m_sampleEndTrap.macroId == 0xffff &&
m_messageTrap.macroId == 0xffff &&
(!m_curSample || (m_curSample && m_volAdsr.isComplete())))
{
if (m_voxState == VoiceState::Dead)
m_curSample = nullptr;
m_voxState = VoiceState::Dead;
m_backendVoice->stop();
}
return samples;
}
@ -795,6 +798,7 @@ void Voice::startSample(int16_t sampId, int32_t offset)
m_pitchDirty = true;
_setPitchWheel(m_curPitchWheel);
m_backendVoice->resetSampleRate(m_curSample->first.m_sampleRate);
m_needsSlew = false;
int32_t numSamples = m_curSample->first.m_numSamples & 0xffffff;
if (offset)
@ -1001,7 +1005,7 @@ void Voice::setPitchSweep1(uint8_t times, int16_t add)
{
m_pitchSweep1 = 0;
m_pitchSweep1It = 0;
m_pitchSweep1Times = times * 160;
m_pitchSweep1Times = times;
m_pitchSweep1Add = add;
}
@ -1009,7 +1013,7 @@ void Voice::setPitchSweep2(uint8_t times, int16_t add)
{
m_pitchSweep2 = 0;
m_pitchSweep2It = 0;
m_pitchSweep2Times = times * 160;
m_pitchSweep2Times = times;
m_pitchSweep2Add = add;
}