ParameterValueQueue.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  @file ParameterValueQueue.h
 
  @author Vitaly Sverchinsky
 
  @brief Part of Audacity VST3 module
 
**********************************************************************/
 
#pragma once
 
#include <vector>
#include <pluginterfaces/vst/ivstparameterchanges.h>
 
namespace internal {
 
   class ParameterValueQueue final : public Steinberg::Vst::IParamValueQueue
   {
      struct Point
      {
         Steinberg::int32 sampleOffset;
         Steinberg::Vst::ParamValue paramValue;
 
         bool operator <(const Point& other) const;
      };
 
      bool mInitialized { false };
      Steinberg::Vst::ParamID mId;
      std::vector<Point> mPoints;
 
   public:
 
      ParameterValueQueue();
      virtual ~ParameterValueQueue();
 
      void initialize(Steinberg::Vst::ParamID id);
 
      bool isInitialized() const noexcept;
 
      void dispose() noexcept;
 
      Steinberg::Vst::ParamID PLUGIN_API getParameterId() override;
 
      Steinberg::int32 PLUGIN_API getPointCount() override;
 
      Steinberg::tresult PLUGIN_API getPoint(Steinberg::int32 index, Steinberg::int32& sampleOffset,
         Steinberg::Vst::ParamValue& value) override;
 
      Steinberg::tresult PLUGIN_API addPoint(Steinberg::int32 sampleOffset, Steinberg::Vst::ParamValue value,
         Steinberg::int32& index) override;
 
      DECLARE_FUNKNOWN_METHODS
   };
 
}