juce_AudioProcessor_ARAExtensions.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
#pragma once
 
namespace juce
{
 
class AudioProcessor;
class ARAPlaybackRenderer;
class ARAEditorRenderer;
class ARAEditorView;
 
//==============================================================================
class JUCE_API  AudioProcessorARAExtension  : public ARA::PlugIn::PlugInExtension
{
public:
    AudioProcessorARAExtension() = default;
 
    //==============================================================================
    template <typename PlaybackRenderer_t = ARAPlaybackRenderer>
    PlaybackRenderer_t* getPlaybackRenderer() const noexcept
    {
        return ARA::PlugIn::PlugInExtension::getPlaybackRenderer<PlaybackRenderer_t>();
    }

    template <typename EditorRenderer_t = ARAEditorRenderer>
    EditorRenderer_t* getEditorRenderer() const noexcept
    {
        return ARA::PlugIn::PlugInExtension::getEditorRenderer<EditorRenderer_t>();
    }

    template <typename EditorView_t = ARAEditorView>
    EditorView_t* getEditorView() const noexcept
    {
        return ARA::PlugIn::PlugInExtension::getEditorView<EditorView_t>();
    }
 
    //==============================================================================
    bool isPlaybackRenderer() const noexcept
    {
        return ARA::PlugIn::PlugInExtension::getPlaybackRenderer() != nullptr;
    }

    bool isEditorRenderer() const noexcept
    {
        return ARA::PlugIn::PlugInExtension::getEditorRenderer() != nullptr;
    }

    bool isEditorView() const noexcept
    {
        return ARA::PlugIn::PlugInExtension::getEditorView() != nullptr;
    }
 
    //==============================================================================
#if ARA_VALIDATE_API_CALLS
    bool isPrepared { false };
#endif
 
protected:
    bool getTailLengthSecondsForARA (double& tailLength) const;

    bool prepareToPlayForARA (double sampleRate,
                              int samplesPerBlock,
                              int numChannels,
                              AudioProcessor::ProcessingPrecision precision);

    bool releaseResourcesForARA();

    bool processBlockForARA (AudioBuffer<float>& buffer,
                             AudioProcessor::Realtime realtime,
                             const AudioPlayHead::PositionInfo& positionInfo);

    bool processBlockForARA (AudioBuffer<float>& buffer, AudioProcessor::Realtime isNonRealtime, AudioPlayHead* playhead);
 
    //==============================================================================
    void didBindToARA() noexcept override;
 
private:
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioProcessorARAExtension)
};
 
//==============================================================================
class JUCE_API  AudioProcessorEditorARAExtension
{
public:
    explicit AudioProcessorEditorARAExtension (AudioProcessor* audioProcessor);

    template <typename EditorView_t = ARAEditorView>
    EditorView_t* getARAEditorView() const noexcept
    {
        return (this->araProcessorExtension != nullptr) ? this->araProcessorExtension->getEditorView<EditorView_t>()
                                                        : nullptr;
    }

    bool isARAEditorView() const noexcept { return getARAEditorView() != nullptr; }
 
protected:
    ~AudioProcessorEditorARAExtension();
 
private:
    AudioProcessorARAExtension* araProcessorExtension;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioProcessorEditorARAExtension)
};
 
} // namespace juce