Reverb.h

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/**********************************************************************
 
   Audacity: A Digital Audio Editor
   Audacity(R) is copyright (c) 1999-2013 Audacity Team.
   License: GPL v2 or later.  See License.txt.
 
   Reverb.h
   Rob Sykes, Vaughan Johnson
 
**********************************************************************/
 
#ifndef __AUDACITY_EFFECT_REVERB__
#define __AUDACITY_EFFECT_REVERB__
 
#include "StatelessPerTrackEffect.h"
#include "ShuttleAutomation.h"
 
 
struct Reverb_priv_t;
 
struct EffectReverbSettings
{
   static constexpr double roomSizeDefault     =  75.0;
   static constexpr double preDelayDefault     =  10.0;
   static constexpr double reverberanceDefault =  50.0;
   static constexpr double hfDampingDefault    =  50.0;
   static constexpr double toneLowDefault      = 100.0;
   static constexpr double toneHighDefault     = 100.0;
   static constexpr double wetGainDefault      =  -1.0;
   static constexpr double dryGainDefault      =  -1.0;
   static constexpr double stereoWidthDefault  = 100.0;
   static constexpr bool   wetOnlyDefault      = false;
 
   double mRoomSize    { roomSizeDefault };
   double mPreDelay    { preDelayDefault };
   double mReverberance{ reverberanceDefault };
   double mHfDamping   { hfDampingDefault };
   double mToneLow     { toneLowDefault };
   double mToneHigh    { toneHighDefault };
   double mWetGain     { wetGainDefault };
   double mDryGain     { dryGainDefault };
   double mStereoWidth { stereoWidthDefault };
   bool   mWetOnly     { wetOnlyDefault };
 
   friend bool operator==(const EffectReverbSettings& a, const EffectReverbSettings& b);
 
   friend bool OnlySimpleParametersChanged(const EffectReverbSettings& a, const EffectReverbSettings& b);
};
 
 
class EffectReverb final : public EffectWithSettings<
   EffectReverbSettings, StatelessPerTrackEffect
>
{
public:
 
   
   static const ComponentInterfaceSymbol Symbol;
 
   EffectReverb();
   virtual ~EffectReverb();
 
   // ComponentInterface implementation
 
   ComponentInterfaceSymbol GetSymbol() const override;
   TranslatableString GetDescription() const override;
   ManualPageID ManualPage() const override;
 
   // EffectDefinitionInterface implementation
 
   EffectType GetType() const override;
   RegistryPaths GetFactoryPresets() const override;
   OptionalMessage LoadFactoryPreset(int id, EffectSettings &settings)
      const override;
 
   RealtimeSince RealtimeSupport() const override;
 
   // Effect implementation
 
   std::unique_ptr<EffectEditor> MakeEditor(
      ShuttleGui & S, EffectInstance &instance,
      EffectSettingsAccess &access, const EffectOutputs *pOutputs)
   const override;
 
   struct Editor;
 
   struct Instance;
 
   std::shared_ptr<EffectInstance> MakeInstance() const override;
 
private:
   // EffectReverb implementation
 
 
private:
   
   const EffectParameterMethods& Parameters() const override;
 
static constexpr EffectParameter RoomSize{ &EffectReverbSettings::mRoomSize,  L"RoomSize",
                                            EffectReverbSettings::roomSizeDefault,      0,       100,  1  };
 
static constexpr EffectParameter PreDelay{ &EffectReverbSettings::mPreDelay,  L"Delay",
                                            EffectReverbSettings::preDelayDefault,      0,       200,  1  };
 
static constexpr EffectParameter Reverberance{ &EffectReverbSettings::mReverberance,  L"Reverberance",
                                                EffectReverbSettings::reverberanceDefault,      0,       100,  1  };
 
static constexpr EffectParameter HfDamping{ &EffectReverbSettings::mHfDamping,  L"HfDamping",
                                             EffectReverbSettings::hfDampingDefault,      0,       100,  1  };
 
static constexpr EffectParameter ToneLow{ &EffectReverbSettings::mToneLow,  L"ToneLow",
                                           EffectReverbSettings::toneLowDefault,     0,       100,  1  };
 
static constexpr EffectParameter ToneHigh{ &EffectReverbSettings::mToneHigh,   L"ToneHigh",
                                            EffectReverbSettings::toneHighDefault,     0,       100,  1  };
 
static constexpr EffectParameter WetGain{ &EffectReverbSettings::mWetGain,   L"WetGain",
                                           EffectReverbSettings::wetGainDefault,      -20,     10,   1  };
 
static constexpr EffectParameter DryGain{ &EffectReverbSettings::mDryGain,   L"DryGain",
                                           EffectReverbSettings::dryGainDefault,      -20,     10,   1  };
 
static constexpr EffectParameter StereoWidth{ &EffectReverbSettings::mStereoWidth,   L"StereoWidth",
                                               EffectReverbSettings::stereoWidthDefault,     0,       100,  1  };
 
static constexpr EffectParameter WetOnly{ &EffectReverbSettings::mWetOnly,   L"WetOnly",
                                           EffectReverbSettings::wetOnlyDefault,   false,   true, 1  };
};
 
#endif