IPlugVST3_Processor.h

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/*
 ==============================================================================
 
 This file is part of the iPlug 2 library. Copyright (C) the iPlug 2 developers. 
 
 See LICENSE.txt for  more info.
 
 ==============================================================================
*/

#ifndef _IPLUGAPI_
#define _IPLUGAPI_

#undef stricmp
#undef strnicmp
#include "public.sdk/source/vst/vstaudioeffect.h"
#include "public.sdk/source/vst/hosting/parameterchanges.h"
#include "pluginterfaces/vst/ivstprocesscontext.h"

#include "IPlugAPIBase.h"

#include "IPlugVST3_ProcessorBase.h"
#include "IPlugVST3_Common.h"

BEGIN_IPLUG_NAMESPACE

class IPlugVST3Processor : public Steinberg::Vst::AudioEffect
                         , public IPlugAPIBase
                         , public IPlugVST3ProcessorBase
{
public:
  struct InstanceInfo
  {
    Steinberg::FUID mOtherGUID;
  };
  
  IPlugVST3Processor(const InstanceInfo& info, const Config& config);
  virtual ~IPlugVST3Processor();

  // AudioEffect overrides:
  Steinberg::tresult PLUGIN_API initialize(FUnknown* context) override;
  Steinberg::tresult PLUGIN_API terminate() override;
  Steinberg::tresult PLUGIN_API setBusArrangements(Steinberg::Vst::SpeakerArrangement* inputs, Steinberg::int32 numIns, Steinberg::Vst::SpeakerArrangement* outputs, Steinberg::int32 numOuts) override;
  Steinberg::tresult PLUGIN_API setActive(Steinberg::TBool state) override;
  Steinberg::tresult PLUGIN_API setupProcessing(Steinberg::Vst::ProcessSetup& newSetup) override;
  Steinberg::tresult PLUGIN_API setProcessing (Steinberg::TBool state) override;
  Steinberg::tresult PLUGIN_API process(Steinberg::Vst::ProcessData& data) override;
  Steinberg::tresult PLUGIN_API canProcessSampleSize(Steinberg::int32 symbolicSampleSize) override;
  Steinberg::uint32 PLUGIN_API getLatencySamples() override { return GetLatency(); }
  Steinberg::uint32 PLUGIN_API getTailSamples() override { return GetTailSize(); } //TODO - infinite tail
  Steinberg::tresult PLUGIN_API setState(Steinberg::IBStream* pState) override;
  Steinberg::tresult PLUGIN_API getState(Steinberg::IBStream* pState) override;
  
  // IEditorDelegate - these methods are overridden because we need to hook into VST3 messaging system
  void SendControlValueFromDelegate(int ctrlTag, double normalizedValue) override;
  void SendControlMsgFromDelegate(int ctrlTag, int msgTag, int dataSize, const void* pData) override;
  void SendParameterValueFromDelegate(int paramIdx, double value, bool normalized) override {} // NOOP in VST3 processor -> param change gets there via IPlugVST3Controller::setParamNormalized
  void SendArbitraryMsgFromDelegate(int msgTag, int dataSize = 0, const void* pData = nullptr) override;
  
  void removeAudioInputBus(Steinberg::Vst::AudioBus* pBus)
  {
    audioInputs.erase(std::remove(audioInputs.begin(), audioInputs.end(), pBus));
  }
   
  void removeAudioOutputBus(Steinberg::Vst::AudioBus* pBus)
  {
    audioOutputs.erase(std::remove(audioOutputs.begin(), audioOutputs.end(), pBus));
  }
  
private:
  void TransmitMidiMsgFromProcessor(const IMidiMsg& msg) override;
  void TransmitSysExDataFromProcessor(const SysExData& data) override;

  // IConnectionPoint
  Steinberg::tresult PLUGIN_API notify(Steinberg::Vst::IMessage* message) override;
  
//  Steinberg::Vst::ParameterChanges mOutputParamChanges;
  IMidiQueue mMidiOutputQueue;
};

Steinberg::FUnknown* MakeProcessor();
extern Steinberg::FUnknown* MakeController();

END_IPLUG_NAMESPACE

#endif //_IPLUGAPI_