Add built-in SoundFont player instrument (#236)

helio-fm · Oct 30, 2022 · 04c67e4 · 04c67e4
1 parent e4325e2
commit 04c67e4
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Showing 14 changed files with 634 additions and 32 deletions.
diff --git a/Source/Core/Audio/BuiltIn/BuiltInSynthsPluginFormat.cpp b/Source/Core/Audio/BuiltIn/BuiltInSynthsPluginFormat.cpp
@@ -19,6 +19,7 @@
 #include "BuiltInSynthsPluginFormat.h"
 #include "DefaultSynthAudioPlugin.h"
 #include "MetronomeSynthAudioPlugin.h"
+#include "SoundFontSynthAudioPlugin.h"
 
 const String BuiltInSynthsPluginFormat::formatName = "BuiltIn";
 const String BuiltInSynthsPluginFormat::formatIdentifier = "BuiltIn";
@@ -30,6 +31,9 @@ BuiltInSynthsPluginFormat::BuiltInSynthsPluginFormat()
 
     MetronomeSynthAudioPlugin metronomeAudioPlugin;
     metronomeAudioPlugin.fillInPluginDescription(this->metronomeInstrument);
+
+    SoundFontSynthAudioPlugin soundFontSynthAudioPlugin;
+    soundFontSynthAudioPlugin.fillInPluginDescription(this->soundFontPlayerInstrument);
 }
 
 String BuiltInSynthsPluginFormat::getName() const
@@ -47,6 +51,10 @@ void BuiltInSynthsPluginFormat::findAllTypesForFile(OwnedArray<PluginDescription
     {
         description.add(new PluginDescription(this->metronomeInstrument));
     }
+    else if (id == SoundFontSynthAudioPlugin::instrumentId)
+    {
+        description.add(new PluginDescription(this->soundFontPlayerInstrument));
+    }
 }
 
 bool BuiltInSynthsPluginFormat::fileMightContainThisPluginType(const String &fileOrIdentifier)
@@ -70,5 +78,11 @@ void BuiltInSynthsPluginFormat::createPluginInstance(const PluginDescription &de
         return;
     }
 
+    if (desc.name == this->soundFontPlayerInstrument.name)
+    {
+        callback(make<SoundFontSynthAudioPlugin>(), {});
+        return;
+    }
+
     callback(nullptr, {});
 }
diff --git a/Source/Core/Audio/BuiltIn/BuiltInSynthsPluginFormat.h b/Source/Core/Audio/BuiltIn/BuiltInSynthsPluginFormat.h
@@ -79,5 +79,6 @@ class BuiltInSynthsPluginFormat final : public AudioPluginFormat
 
     PluginDescription defaultInstrument;
     PluginDescription metronomeInstrument;
+    PluginDescription soundFontPlayerInstrument;
 
 };
diff --git a/Source/Core/Audio/BuiltIn/SoundFont/SoundFontSynth.cpp b/Source/Core/Audio/BuiltIn/SoundFont/SoundFontSynth.cpp
@@ -690,6 +690,49 @@ void SoundFontVoice::killNote()
 // SoundFontSynth
 //===----------------------------------------------------------------------===//
 
+void SoundFontSynth::initSynth(const Parameters &parameters)
+{
+    const File file(parameters.filePath);
+    if (!file.existsAsFile())
+    {
+        return;
+    }
+
+    ScopedLock locker(this->lock);
+
+    this->allNotesOff(0, false);
+
+    this->clearVoices();
+    for (int i = SoundFontSynth::numVoices; i --> 0 ;)
+    {
+        this->addVoice(new SoundFontVoice());
+    }
+
+    this->clearSounds();
+
+    AudioFormatManager audioFormatManager;
+    audioFormatManager.registerBasicFormats();
+
+    if (file.getFullPathName().endsWithIgnoreCase("sf2"))
+    {
+        auto sound = make<SoundFont2Sound>(file);
+        sound->loadRegions();
+        sound->loadSamples(audioFormatManager);
+        this->sounds.add(sound.release());
+    }
+    else if (file.getFullPathName().endsWithIgnoreCase("sbk"))
+    {
+        auto sound = make<SoundFontSound>(file);
+        sound->loadRegions();
+        sound->loadSamples(audioFormatManager);
+        this->sounds.add(sound.release());
+    }
+
+    // new file has been loaded so we need to set the program anyway
+    jassert(parameters.programIndex < this->getNumPrograms());
+    this->setCurrentProgram(parameters.programIndex);
+}
+
 void SoundFontSynth::noteOn(int midiChannel, int midiNoteNumber, float velocity)
 {
     int i;
@@ -837,3 +880,55 @@ void SoundFontSynth::changeProgramName(int index, const String &newName)
 {
     jassertfalse;
 }
+
+//===----------------------------------------------------------------------===//
+// Synth parameters
+//===----------------------------------------------------------------------===//
+
+SoundFontSynth::Parameters SoundFontSynth::Parameters::withSoundFontFile(const String &newFilePath) const noexcept
+{
+    Parameters other(*this);
+    other.filePath = newFilePath;
+    return other;
+}
+
+SoundFontSynth::Parameters SoundFontSynth::Parameters::withProgramIndex(int newProgramIndex) const noexcept
+{
+    Parameters other(*this);
+    other.programIndex = newProgramIndex;
+    return other;
+}
+
+SerializedData SoundFontSynth::Parameters::serialize() const
+{
+    using namespace Serialization::Audio;
+
+    SerializedData data(SoundFont::soundFontConfig);
+    data.setProperty(SoundFont::filePath, this->filePath);
+    data.setProperty(SoundFont::programIndex, this->programIndex);
+
+    return data;
+}
+
+void SoundFontSynth::Parameters::deserialize(const SerializedData &data)
+{
+    this->reset();
+    using namespace Serialization::Audio;
+
+    const auto root = data.hasType(SoundFont::soundFontConfig) ?
+        data : data.getChildWithName(SoundFont::soundFontConfig);
+
+    if (!root.isValid())
+    {
+        return;
+    }
+
+    this->filePath = root.getProperty(SoundFont::filePath);
+    this->programIndex = root.getProperty(SoundFont::programIndex);
+}
+
+void SoundFontSynth::Parameters::reset()
+{
+    this->filePath.clear();
+    this->programIndex = 0;
+}
diff --git a/Source/Core/Audio/BuiltIn/SoundFont/SoundFontSynth.h b/Source/Core/Audio/BuiltIn/SoundFont/SoundFontSynth.h
@@ -30,6 +30,24 @@ class SoundFontSynth final : public Synthesiser
     void noteOn(int midiChannel, int midiNoteNumber, float velocity) override;
     void noteOff(int midiChannel, int midiNoteNumber, float velocity, bool allowTailOff) override;
 
+    //===------------------------------------------------------------------===//
+    // Synth parameters
+    //===------------------------------------------------------------------===//
+
+    struct Parameters final : Serializable
+    {
+        String filePath;
+        int programIndex = 0;
+
+        Parameters withSoundFontFile(const String &newFilePath) const noexcept;
+        Parameters withProgramIndex(int newProgramIndex) const noexcept;
+
+        SerializedData serialize() const override;
+        void deserialize(const SerializedData &data) override;
+        void reset() override;
+    };
+
+    void initSynth(const Parameters &parameters);
 
     //===------------------------------------------------------------------===//
     // Presets
@@ -43,6 +61,8 @@ class SoundFontSynth final : public Synthesiser
 
 private:
 
+    static constexpr auto numVoices = 16;
+
     int noteVelocities[128];
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(SoundFontSynth)