tracktion_BreakpointOscillatorModifier.h

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 /*
    ,--.                     ,--.     ,--.  ,--.
  ,-'  '-.,--.--.,--,--.,---.|  |,-.,-'  '-.`--' ,---. ,--,--,      Copyright 2024
  '-.  .-'|  .--' ,-.  | .--'|     /'-.  .-',--.| .-. ||      \   Tracktion Software
    |  |  |  |  \ '-'  \ `--.|  \  \  |  |  |  |' '-' '|  ||  |       Corporation
    `---' `--'   `--`--'`---'`--'`--' `---' `--' `---' `--''--'    www.tracktion.com
 
    Tracktion Engine uses a GPL/commercial licence - see LICENCE.md for details.
*/
 
namespace tracktion { inline namespace engine
{
 
class BreakpointOscillatorModifier  : public Modifier,
                                      private ValueTreeAllEventListener
{
public:
    //==============================================================================
    BreakpointOscillatorModifier (Edit&, const juce::ValueTree&);
    ~BreakpointOscillatorModifier() override;
 
    using Ptr = juce::ReferenceCountedObjectPtr<BreakpointOscillatorModifier>;
    using Array = juce::ReferenceCountedArray<BreakpointOscillatorModifier>;
 
    using Modifier::initialise;
    void initialise() override;
    juce::String getName() const override               { return TRANS("Breakpoint Modifier"); }
 
    //==============================================================================
    float getCurrentValue() override;
 
    float getCurrentEnvelopeValue() const noexcept;
 
    float getCurrentPhase() const noexcept;
 
    float getTotalTime() const;
 
    AutomatableParameter::ModifierAssignment* createAssignment (const juce::ValueTree&) override;
 
    ProcessingPosition getProcessingPosition() override { return ProcessingPosition::preFX; }
 
    void applyToBuffer (const PluginRenderContext&) override;
 
    //==============================================================================
    struct Assignment   : public AutomatableParameter::ModifierAssignment
    {
        Assignment (const juce::ValueTree&, const BreakpointOscillatorModifier&);
 
        bool isForModifierSource (const ModifierSource&) const override;
        juce::ReferenceCountedObjectPtr<BreakpointOscillatorModifier> getModifier() const;
 
        const EditItemID breakpointOscillatorModifierID;
 
        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Assignment)
    };
 
    //==============================================================================
    juce::String getSelectableDescription() override    { return getName(); }
 
    //==============================================================================
    juce::CachedValue<float> numActivePoints, syncType, rate, rateType, depth, bipolar,
                             stageZeroValue,
                             stageOneValue, stageOneTime, stageOneCurve,
                             stageTwoValue, stageTwoTime, stageTwoCurve,
                             stageThreeValue, stageThreeTime, stageThreeCurve,
                             stageFourValue, stageFourTime, stageFourCurve;
 
    AutomatableParameter::Ptr numActivePointsParam, syncTypeParam, rateParam, rateTypeParam, depthParam, bipolarParam,
                              stageZeroValueParam,
                              stageOneValueParam, stageOneTimeParam, stageOneCurveParam,
                              stageTwoValueParam, stageTwoTimeParam, stageTwoCurveParam,
                              stageThreeValueParam, stageThreeTimeParam, stageThreeCurveParam,
                              stageFourValueParam, stageFourTimeParam, stageFourCurveParam;
 
    struct Stage
    {
        AutomatableParameter *valueParam = nullptr, *timeParam = nullptr, *curveParam = nullptr;
    };
 
    Stage getStage (int index) const;
 
private:
    struct BreakpointOscillatorModifierTimer;
    std::unique_ptr<BreakpointOscillatorModifierTimer> modifierTimer;
    LambdaTimer changedTimer;
    std::atomic<float> currentPhase { 1.0f }, currentValue { 0.0f }, currentEnvelopeValue { 0.0f };
 
    struct Section { float value = 0.0f, time = 0.0f, curve = 0.0f; };
    std::array<Section, 5> getAllSections() const;
    std::pair<Section, Section> getSectionsSurrounding (float time) const;
 
    void setPhase (float newPhase);
 
    void valueTreeChanged() override;
};
 
}} // namespace tracktion { inline namespace engine