213 lines
8.8 KiB
C++
213 lines
8.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework examples.
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Copyright (c) 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" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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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: MultiOutSynthPlugin
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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: Multi-out synthesiser 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, vs2022
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moduleFlags: JUCE_STRICT_REFCOUNTEDPOINTER=1
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type: AudioProcessor
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mainClass: MultiOutSynth
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useLocalCopy: 1
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pluginCharacteristics: pluginIsSynth, pluginWantsMidiIn
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END_JUCE_PIP_METADATA
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*******************************************************************************/
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#pragma once
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#include "../Assets/DemoUtilities.h"
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//==============================================================================
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class MultiOutSynth final : public AudioProcessor
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{
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public:
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enum
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{
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maxMidiChannel = 16,
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maxNumberOfVoices = 5
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};
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//==============================================================================
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MultiOutSynth()
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: AudioProcessor (BusesProperties()
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.withOutput ("Output #1", AudioChannelSet::stereo(), true)
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.withOutput ("Output #2", AudioChannelSet::stereo(), false)
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.withOutput ("Output #3", AudioChannelSet::stereo(), false)
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.withOutput ("Output #4", AudioChannelSet::stereo(), false)
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.withOutput ("Output #5", AudioChannelSet::stereo(), false)
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.withOutput ("Output #6", AudioChannelSet::stereo(), false)
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.withOutput ("Output #7", AudioChannelSet::stereo(), false)
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.withOutput ("Output #8", AudioChannelSet::stereo(), false)
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.withOutput ("Output #9", AudioChannelSet::stereo(), false)
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.withOutput ("Output #10", AudioChannelSet::stereo(), false)
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.withOutput ("Output #11", AudioChannelSet::stereo(), false)
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.withOutput ("Output #12", AudioChannelSet::stereo(), false)
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.withOutput ("Output #13", AudioChannelSet::stereo(), false)
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.withOutput ("Output #14", AudioChannelSet::stereo(), false)
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.withOutput ("Output #15", AudioChannelSet::stereo(), false)
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.withOutput ("Output #16", AudioChannelSet::stereo(), false))
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{
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// initialize other stuff (not related to buses)
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formatManager.registerBasicFormats();
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for (int midiChannel = 0; midiChannel < maxMidiChannel; ++midiChannel)
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{
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synth.add (new Synthesiser());
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for (int i = 0; i < maxNumberOfVoices; ++i)
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synth[midiChannel]->addVoice (new SamplerVoice());
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}
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loadNewSample (createAssetInputStream ("singing.ogg"), "ogg");
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}
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//==============================================================================
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bool canAddBus (bool isInput) const override { return ! isInput; }
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bool canRemoveBus (bool isInput) const override { return ! isInput; }
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//==============================================================================
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void prepareToPlay (double newSampleRate, int samplesPerBlock) override
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{
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ignoreUnused (samplesPerBlock);
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for (auto* s : synth)
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s->setCurrentPlaybackSampleRate (newSampleRate);
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}
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void releaseResources() override {}
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void processBlock (AudioBuffer<float>& buffer, MidiBuffer& midiBuffer) override
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{
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auto busCount = getBusCount (false);
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for (auto busNr = 0; busNr < busCount; ++busNr)
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{
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if (synth.size() <= busNr)
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continue;
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auto midiChannelBuffer = filterMidiMessagesForChannel (midiBuffer, busNr + 1);
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auto audioBusBuffer = getBusBuffer (buffer, false, busNr);
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// Voices add to the contents of the buffer. Make sure the buffer is clear before
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// rendering, just in case the host left old data in the buffer.
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audioBusBuffer.clear();
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synth [busNr]->renderNextBlock (audioBusBuffer, midiChannelBuffer, 0, audioBusBuffer.getNumSamples());
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}
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}
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using AudioProcessor::processBlock;
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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 "Multi Out Synth PlugIn"; }
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bool acceptsMidi() const override { return false; }
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bool producesMidi() const override { return false; }
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double getTailLengthSeconds() const override { return 0; }
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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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bool isBusesLayoutSupported (const BusesLayout& layout) const override
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{
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const auto& outputs = layout.outputBuses;
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return layout.inputBuses.isEmpty()
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&& 1 <= outputs.size()
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&& std::all_of (outputs.begin(), outputs.end(), [] (const auto& bus)
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{
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return bus.isDisabled() || bus == AudioChannelSet::stereo();
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});
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}
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//==============================================================================
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void getStateInformation (MemoryBlock&) override {}
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void setStateInformation (const void*, int) override {}
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private:
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//==============================================================================
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static MidiBuffer filterMidiMessagesForChannel (const MidiBuffer& input, int channel)
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{
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MidiBuffer output;
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for (const auto metadata : input)
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{
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const auto message = metadata.getMessage();
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if (message.getChannel() == channel)
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output.addEvent (message, metadata.samplePosition);
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}
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return output;
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}
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void loadNewSample (std::unique_ptr<InputStream> soundBuffer, const char* format)
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{
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std::unique_ptr<AudioFormatReader> formatReader (formatManager.findFormatForFileExtension (format)->createReaderFor (soundBuffer.release(), true));
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BigInteger midiNotes;
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midiNotes.setRange (0, 126, true);
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SynthesiserSound::Ptr newSound = new SamplerSound ("Voice", *formatReader, midiNotes, 0x40, 0.0, 0.0, 10.0);
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for (auto* s : synth)
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s->removeSound (0);
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sound = newSound;
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for (auto* s : synth)
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s->addSound (sound);
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}
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//==============================================================================
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AudioFormatManager formatManager;
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OwnedArray<Synthesiser> synth;
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SynthesiserSound::Ptr sound;
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//==============================================================================
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MultiOutSynth)
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};
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