git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
This commit is contained in:
166
deps/juce/examples/Plugins/ArpeggiatorPluginDemo.h
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deps/juce/examples/Plugins/ArpeggiatorPluginDemo.h
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/*
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==============================================================================
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This file is part of the JUCE examples.
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Copyright (c) 2020 - Raw Material Software Limited
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
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WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
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PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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/*******************************************************************************
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The block below describes the properties of this PIP. A PIP is a short snippet
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of code that can be read by the Projucer and used to generate a JUCE project.
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BEGIN_JUCE_PIP_METADATA
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name: ArpeggiatorPlugin
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version: 1.0.0
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vendor: JUCE
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website: http://juce.com
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description: Arpeggiator audio plugin.
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dependencies: juce_audio_basics, juce_audio_devices, juce_audio_formats,
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juce_audio_plugin_client, juce_audio_processors,
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juce_audio_utils, juce_core, juce_data_structures,
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juce_events, juce_graphics, juce_gui_basics, juce_gui_extra
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exporters: xcode_mac, vs2019
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moduleFlags: JUCE_STRICT_REFCOUNTEDPOINTER=1
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type: AudioProcessor
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mainClass: Arpeggiator
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useLocalCopy: 1
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pluginCharacteristics: pluginWantsMidiIn, pluginProducesMidiOut, pluginIsMidiEffectPlugin
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END_JUCE_PIP_METADATA
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*******************************************************************************/
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#pragma once
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//==============================================================================
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class Arpeggiator : public AudioProcessor
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{
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public:
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//==============================================================================
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Arpeggiator()
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: AudioProcessor (BusesProperties()) // add no audio buses at all
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{
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addParameter (speed = new AudioParameterFloat ("speed", "Arpeggiator Speed", 0.0, 1.0, 0.5));
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}
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//==============================================================================
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void prepareToPlay (double sampleRate, int samplesPerBlock) override
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{
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ignoreUnused (samplesPerBlock);
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notes.clear();
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currentNote = 0;
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lastNoteValue = -1;
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time = 0;
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rate = static_cast<float> (sampleRate);
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}
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void releaseResources() override {}
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void processBlock (AudioBuffer<float>& buffer, MidiBuffer& midi) override
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{
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// the audio buffer in a midi effect will have zero channels!
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jassert (buffer.getNumChannels() == 0);
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// however we use the buffer to get timing information
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auto numSamples = buffer.getNumSamples();
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// get note duration
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auto noteDuration = static_cast<int> (std::ceil (rate * 0.25f * (0.1f + (1.0f - (*speed)))));
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for (const auto metadata : midi)
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{
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const auto msg = metadata.getMessage();
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if (msg.isNoteOn()) notes.add (msg.getNoteNumber());
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else if (msg.isNoteOff()) notes.removeValue (msg.getNoteNumber());
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}
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midi.clear();
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if ((time + numSamples) >= noteDuration)
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{
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auto offset = jmax (0, jmin ((int) (noteDuration - time), numSamples - 1));
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if (lastNoteValue > 0)
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{
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midi.addEvent (MidiMessage::noteOff (1, lastNoteValue), offset);
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lastNoteValue = -1;
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}
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if (notes.size() > 0)
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{
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currentNote = (currentNote + 1) % notes.size();
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lastNoteValue = notes[currentNote];
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midi.addEvent (MidiMessage::noteOn (1, lastNoteValue, (uint8) 127), offset);
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}
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}
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time = (time + numSamples) % noteDuration;
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}
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using AudioProcessor::processBlock;
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//==============================================================================
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bool isMidiEffect() const override { return true; }
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//==============================================================================
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AudioProcessorEditor* createEditor() override { return new GenericAudioProcessorEditor (*this); }
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bool hasEditor() const override { return true; }
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//==============================================================================
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const String getName() const override { return "Arpeggiator"; }
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bool acceptsMidi() const override { return true; }
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bool producesMidi() const override { return true; }
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double getTailLengthSeconds() const override { return 0; }
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//==============================================================================
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int getNumPrograms() override { return 1; }
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int getCurrentProgram() override { return 0; }
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void setCurrentProgram (int) override {}
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const String getProgramName (int) override { return "None"; }
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void changeProgramName (int, const String&) override {}
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//==============================================================================
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void getStateInformation (MemoryBlock& destData) override
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{
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MemoryOutputStream (destData, true).writeFloat (*speed);
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}
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void setStateInformation (const void* data, int sizeInBytes) override
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{
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speed->setValueNotifyingHost (MemoryInputStream (data, static_cast<size_t> (sizeInBytes), false).readFloat());
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}
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private:
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//==============================================================================
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AudioParameterFloat* speed;
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int currentNote, lastNoteValue;
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int time;
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float rate;
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SortedSet<int> notes;
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//==============================================================================
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Arpeggiator)
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};
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