paulxstretch/Source/PluginProcessor.cpp

471 lines
14 KiB
C++

/*
==============================================================================
This file was auto-generated!
It contains the basic framework code for a JUCE plugin processor.
==============================================================================
*/
#include "PluginProcessor.h"
#include "PluginEditor.h"
#include <set>
#undef min
#undef max
std::set<PaulstretchpluginAudioProcessor*> g_activeprocessors;
template<typename F>
void callGUI(AudioProcessor* ap, F&& f, bool async)
{
auto ed = dynamic_cast<PaulstretchpluginAudioProcessorEditor*>(ap->getActiveEditor());
if (ed)
{
if (async == false)
f(ed);
else
MessageManager::callAsync([ed,f]() { f(ed); });
}
}
int get_optimized_updown(int n, bool up) {
int orig_n = n;
while (true) {
n = orig_n;
while (!(n % 11)) n /= 11;
while (!(n % 7)) n /= 7;
while (!(n % 5)) n /= 5;
while (!(n % 3)) n /= 3;
while (!(n % 2)) n /= 2;
if (n<2) break;
if (up) orig_n++;
else orig_n--;
if (orig_n<4) return 4;
};
return orig_n;
};
int optimizebufsize(int n) {
int n1 = get_optimized_updown(n, false);
int n2 = get_optimized_updown(n, true);
if ((n - n1)<(n2 - n)) return n1;
else return n2;
};
//==============================================================================
PaulstretchpluginAudioProcessor::PaulstretchpluginAudioProcessor()
: m_bufferingthread("pspluginprebufferthread")
#ifndef JucePlugin_PreferredChannelConfigurations
: AudioProcessor (BusesProperties()
#if ! JucePlugin_IsMidiEffect
#if ! JucePlugin_IsSynth
.withInput ("Input", AudioChannelSet::stereo(), true)
#endif
.withOutput ("Output", AudioChannelSet::stereo(), true)
#endif
)
#endif
{
g_activeprocessors.insert(this);
m_recbuffer.setSize(2, 44100);
m_recbuffer.clear();
m_afm = std::make_unique<AudioFormatManager>();
m_afm->registerBasicFormats();
m_stretch_source = std::make_unique<StretchAudioSource>(2, m_afm.get());
setPreBufferAmount(2);
m_ppar.pitch_shift.enabled = true;
m_ppar.freq_shift.enabled = true;
m_stretch_source->setOnsetDetection(0.0);
m_stretch_source->setLoopingEnabled(true);
addParameter(new AudioParameterFloat("mainvolume0", "Main volume", -24.0f, 12.0f, -3.0f)); // 0
addParameter(new AudioParameterFloat("stretchamount0", "Stretch amount", 0.1f, 128.0f, 1.0f)); // 1
addParameter(new AudioParameterFloat("fftsize0", "FFT size", 0.0f, 1.0f, 0.7f)); // 2
addParameter(new AudioParameterFloat("pitchshift0", "Pitch shift", -24.0f, 24.0f, 0.0f)); // 3
addParameter(new AudioParameterFloat("freqshift0", "Frequency shift", -1000.0f, 1000.0f, 0.0f)); // 4
addParameter(new AudioParameterFloat("playrange_start0", "Sound start", 0.0f, 1.0f, 0.0f)); // 5
addParameter(new AudioParameterFloat("playrange_end0", "Sound end", 0.0f, 1.0f, 1.0f)); // 6
addParameter(new AudioParameterBool("freeze0", "Freeze", false)); // 7
}
PaulstretchpluginAudioProcessor::~PaulstretchpluginAudioProcessor()
{
g_activeprocessors.erase(this);
m_bufferingthread.stopThread(1000);
}
void PaulstretchpluginAudioProcessor::setPreBufferAmount(int x)
{
int temp = jlimit(0, 5, x);
if (temp != m_prebuffer_amount)
{
m_prebuffer_amount = temp;
m_recreate_buffering_source = true;
}
}
//==============================================================================
const String PaulstretchpluginAudioProcessor::getName() const
{
return JucePlugin_Name;
}
bool PaulstretchpluginAudioProcessor::acceptsMidi() const
{
#if JucePlugin_WantsMidiInput
return true;
#else
return false;
#endif
}
bool PaulstretchpluginAudioProcessor::producesMidi() const
{
#if JucePlugin_ProducesMidiOutput
return true;
#else
return false;
#endif
}
bool PaulstretchpluginAudioProcessor::isMidiEffect() const
{
#if JucePlugin_IsMidiEffect
return true;
#else
return false;
#endif
}
double PaulstretchpluginAudioProcessor::getTailLengthSeconds() const
{
return 0.0;
}
int PaulstretchpluginAudioProcessor::getNumPrograms()
{
return 1; // NB: some hosts don't cope very well if you tell them there are 0 programs,
// so this should be at least 1, even if you're not really implementing programs.
}
int PaulstretchpluginAudioProcessor::getCurrentProgram()
{
return 0;
}
void PaulstretchpluginAudioProcessor::setCurrentProgram (int index)
{
}
const String PaulstretchpluginAudioProcessor::getProgramName (int index)
{
return {};
}
void PaulstretchpluginAudioProcessor::changeProgramName (int index, const String& newName)
{
}
void PaulstretchpluginAudioProcessor::setFFTSize(double size)
{
if (m_prebuffer_amount == 5)
m_fft_size_to_use = pow(2, 7.0 + size * 14.5);
else m_fft_size_to_use = pow(2, 7.0 + size * 10.0); // chicken out from allowing huge FFT sizes if not enough prebuffering
int optim = optimizebufsize(m_fft_size_to_use);
m_fft_size_to_use = optim;
m_stretch_source->setFFTSize(optim);
//Logger::writeToLog(String(m_fft_size_to_use));
}
void PaulstretchpluginAudioProcessor::startplay(Range<double> playrange, int numoutchans, String& err)
{
m_stretch_source->setPlayRange(playrange, m_stretch_source->isLoopingEnabled());
int bufamt = m_bufamounts[m_prebuffer_amount];
if (m_buffering_source != nullptr && numoutchans != m_buffering_source->getNumberOfChannels())
m_recreate_buffering_source = true;
if (m_recreate_buffering_source == true)
{
m_buffering_source = std::make_unique<MyBufferingAudioSource>(m_stretch_source.get(),
m_bufferingthread, false, bufamt, numoutchans, false);
m_recreate_buffering_source = false;
}
if (m_bufferingthread.isThreadRunning() == false)
m_bufferingthread.startThread();
m_stretch_source->setNumOutChannels(numoutchans);
m_stretch_source->setFFTSize(m_fft_size_to_use);
m_stretch_source->setProcessParameters(&m_ppar);
m_last_outpos_pos = 0.0;
m_last_in_pos = playrange.getStart()*m_stretch_source->getInfileLengthSeconds();
m_buffering_source->prepareToPlay(1024, 44100.0);
};
void PaulstretchpluginAudioProcessor::prepareToPlay(double sampleRate, int samplesPerBlock)
{
if (getNumOutputChannels() != m_cur_num_out_chans)
m_ready_to_play = false;
if (m_using_memory_buffer == true)
{
int len = jlimit(100,m_recbuffer.getNumSamples(), m_rec_pos);
m_stretch_source->setAudioBufferAsInputSource(&m_recbuffer,
getSampleRate(),
len);
callGUI(this,[this,len](auto ed) { ed->setAudioBuffer(&m_recbuffer, getSampleRate(), len); },false);
}
if (m_ready_to_play == false)
{
setFFTSize(0.5);
m_stretch_source->setProcessParameters(&m_ppar);
String err;
startplay({ *getFloatParameter(5),*getFloatParameter(6) },
2, err);
m_cur_num_out_chans = getNumOutputChannels();
m_ready_to_play = true;
}
}
void PaulstretchpluginAudioProcessor::releaseResources()
{
//m_control->stopplay();
//m_ready_to_play = false;
}
#ifndef JucePlugin_PreferredChannelConfigurations
bool PaulstretchpluginAudioProcessor::isBusesLayoutSupported (const BusesLayout& layouts) const
{
#if JucePlugin_IsMidiEffect
ignoreUnused (layouts);
return true;
#else
// This is the place where you check if the layout is supported.
// In this template code we only support mono or stereo.
if (layouts.getMainOutputChannelSet() != AudioChannelSet::mono()
&& layouts.getMainOutputChannelSet() != AudioChannelSet::stereo())
return false;
// This checks if the input layout matches the output layout
#if ! JucePlugin_IsSynth
if (layouts.getMainOutputChannelSet() != layouts.getMainInputChannelSet())
return false;
#endif
return true;
#endif
}
#endif
void copyAudioBufferWrappingPosition(const AudioBuffer<float>& src, AudioBuffer<float>& dest, int destbufpos, int maxdestpos)
{
for (int i = 0; i < dest.getNumChannels(); ++i)
{
int channel_to_copy = i % src.getNumChannels();
if (destbufpos + src.getNumSamples() > maxdestpos)
{
int wrappos = (destbufpos + src.getNumSamples()) % maxdestpos;
int partial_len = src.getNumSamples() - wrappos;
dest.copyFrom(channel_to_copy, destbufpos, src, channel_to_copy, 0, partial_len);
dest.copyFrom(channel_to_copy, partial_len, src, channel_to_copy, 0, wrappos);
}
else
{
dest.copyFrom(channel_to_copy, destbufpos, src, channel_to_copy, 0, src.getNumSamples());
}
}
}
void PaulstretchpluginAudioProcessor::processBlock (AudioSampleBuffer& buffer, MidiBuffer& midiMessages)
{
std::lock_guard<std::mutex> locker(m_mutex);
ScopedNoDenormals noDenormals;
const int totalNumInputChannels = getTotalNumInputChannels();
const int totalNumOutputChannels = getTotalNumOutputChannels();
for (int i = totalNumInputChannels; i < totalNumOutputChannels; ++i)
buffer.clear (i, 0, buffer.getNumSamples());
if (m_ready_to_play == false)
return;
if (m_is_recording == true)
{
int recbuflenframes = m_max_reclen * getSampleRate();
copyAudioBufferWrappingPosition(buffer, m_recbuffer, m_rec_pos, recbuflenframes);
callGUI(this,[this, &buffer](PaulstretchpluginAudioProcessorEditor*ed)
{
ed->addAudioBlock(buffer, getSampleRate(), m_rec_pos);
}, false);
m_rec_pos = (m_rec_pos + buffer.getNumSamples()) % recbuflenframes;
return;
}
jassert(m_buffering_source != nullptr);
jassert(m_bufferingthread.isThreadRunning());
m_stretch_source->val_MainVolume = (float)*getFloatParameter(0);
m_stretch_source->setRate(*getFloatParameter(1));
m_stretch_source->val_XFadeLen = 0.1;
setFFTSize(*getFloatParameter(2));
m_ppar.pitch_shift.cents = *getFloatParameter(3) * 100.0;
m_ppar.freq_shift.Hz = *getFloatParameter(4);
double t0 = *getFloatParameter(5);
double t1 = *getFloatParameter(6);
if (t0 > t1)
std::swap(t0, t1);
if (t1 - t0 < 0.001)
t1 = t0 + 0.001;
m_stretch_source->setPlayRange({ t0,t1 }, true);
m_stretch_source->setFreezing(getParameter(7));
m_stretch_source->setProcessParameters(&m_ppar);
AudioSourceChannelInfo aif(buffer);
m_buffering_source->getNextAudioBlock(aif);
}
//==============================================================================
bool PaulstretchpluginAudioProcessor::hasEditor() const
{
return true; // (change this to false if you choose to not supply an editor)
}
AudioProcessorEditor* PaulstretchpluginAudioProcessor::createEditor()
{
return new PaulstretchpluginAudioProcessorEditor (*this);
}
//==============================================================================
void PaulstretchpluginAudioProcessor::getStateInformation (MemoryBlock& destData)
{
ValueTree paramtree("paulstretch3pluginstate");
for (int i=0;i<getNumParameters();++i)
{
auto par = getFloatParameter(i);
if (par != nullptr)
{
paramtree.setProperty(par->paramID, (double)*par, nullptr);
}
}
if (m_current_file != File())
{
paramtree.setProperty("importedfile", m_current_file.getFullPathName(), nullptr);
}
MemoryOutputStream stream(destData,true);
paramtree.writeToStream(stream);
}
void PaulstretchpluginAudioProcessor::setStateInformation (const void* data, int sizeInBytes)
{
ValueTree tree = ValueTree::readFromData(data, sizeInBytes);
if (tree.isValid())
{
for (int i = 0; i<getNumParameters(); ++i)
{
auto par = getFloatParameter(i);
if (par != nullptr)
{
double parval = tree.getProperty(par->paramID, (double)*par);
*par = parval;
}
}
String fn = tree.getProperty("importedfile");
if (fn.isEmpty() == false)
{
m_using_memory_buffer = false;
File f(fn);
setAudioFile(f);
}
}
}
void PaulstretchpluginAudioProcessor::setRecordingEnabled(bool b)
{
std::lock_guard<std::mutex> locker(m_mutex);
int lenbufframes = getSampleRate()*m_max_reclen;
if (b == true)
{
m_using_memory_buffer = true;
m_current_file = File();
m_recbuffer.setSize(2, m_max_reclen*getSampleRate()+4096);
m_recbuffer.clear();
m_rec_pos = 0;
callGUI(this,[this,lenbufframes](PaulstretchpluginAudioProcessorEditor* ed)
{
ed->beginAddingAudioBlocks(2, getSampleRate(), lenbufframes);
},false);
m_is_recording = true;
}
else
{
if (m_is_recording == true)
{
finishRecording(lenbufframes);
}
}
}
double PaulstretchpluginAudioProcessor::getRecordingPositionPercent()
{
if (m_is_recording==false)
return 0.0;
return 1.0 / m_recbuffer.getNumSamples()*m_rec_pos;
}
String PaulstretchpluginAudioProcessor::setAudioFile(File f)
{
std::lock_guard<std::mutex> locker(m_mutex);
auto ai = unique_from_raw(m_afm->createReaderFor(f));
if (ai != nullptr)
{
if (ai->numChannels > 32)
{
//MessageManager::callAsync([cb, file]() { cb("Too many channels in file " + file.getFullPathName()); });
return "Too many channels in file "+f.getFullPathName();
}
if (ai->bitsPerSample>32)
{
//MessageManager::callAsync([cb, file]() { cb("Too high bit depth in file " + file.getFullPathName()); });
return "Too high bit depth in file " + f.getFullPathName();
}
m_current_file = f;
m_using_memory_buffer = false;
m_stretch_source->setAudioFile(f);
return String();
//MessageManager::callAsync([cb, file]() { cb(String()); });
}
return "Could not open file " + f.getFullPathName();
}
Range<double> PaulstretchpluginAudioProcessor::getTimeSelection()
{
return { *getFloatParameter(5),*getFloatParameter(6) };
}
double PaulstretchpluginAudioProcessor::getPreBufferingPercent()
{
if (m_buffering_source==nullptr)
return 0.0;
return m_buffering_source->getPercentReady();
}
void PaulstretchpluginAudioProcessor::finishRecording(int lenrecording)
{
m_is_recording = false;
m_stretch_source->setAudioBufferAsInputSource(&m_recbuffer, getSampleRate(), lenrecording);
m_stretch_source->setPlayRange({ *getFloatParameter(5),*getFloatParameter(6) }, true);
auto ed = dynamic_cast<PaulstretchpluginAudioProcessorEditor*>(getActiveEditor());
if (ed)
{
//ed->setAudioBuffer(&m_recbuffer, getSampleRate(), lenrecording);
}
}
//==============================================================================
// This creates new instances of the plugin..
AudioProcessor* JUCE_CALLTYPE createPluginFilter()
{
return new PaulstretchpluginAudioProcessor();
}