mirror of
https://github.com/cookiengineer/audacity
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7824e94030
... Should have no effect on generated code, except perhaps some slight faster virtual function calls. Mostly useful as documentation of design intent. Tried to mark every one of our classes that inherits from another, or is a base for others, or has abstract virtual functions, and a few others besides.
146 lines
3.7 KiB
C++
146 lines
3.7 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Wahwah
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Effect programming:
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Nasca Octavian Paul (Paul Nasca)
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UI programming:
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Dominic Mazzoni (with the help of wxDesigner)
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Vaughan Johnson (Preview)
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**********************************************************************/
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#ifndef __AUDACITY_EFFECT_WAHWAH__
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#define __AUDACITY_EFFECT_WAHWAH__
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#include <wx/event.h>
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#include <wx/slider.h>
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#include <wx/string.h>
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#include <wx/textctrl.h>
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#include "Effect.h"
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class ShuttleGui;
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#define WAHWAH_PLUGIN_SYMBOL XO("Wahwah")
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class EffectWahwahState
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{
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public:
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float samplerate;
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double depth;
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double freqofs;
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double phase;
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double outgain;
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double lfoskip;
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unsigned long skipcount;
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double xn1, xn2, yn1, yn2;
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double b0, b1, b2, a0, a1, a2;
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};
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WX_DECLARE_OBJARRAY(EffectWahwahState, EffectWahwahStateArray);
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class EffectWahwah final : public Effect
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{
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public:
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EffectWahwah();
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virtual ~EffectWahwah();
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// IdentInterface implementation
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virtual wxString GetSymbol();
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virtual wxString GetDescription();
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// EffectIdentInterface implementation
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virtual EffectType GetType();
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virtual bool SupportsRealtime();
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// EffectClientInterface implementation
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virtual int GetAudioInCount();
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virtual int GetAudioOutCount();
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virtual bool ProcessInitialize(sampleCount totalLen, ChannelNames chanMap = NULL);
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virtual sampleCount ProcessBlock(float **inBlock, float **outBlock, sampleCount blockLen);
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virtual bool RealtimeInitialize();
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virtual bool RealtimeAddProcessor(int numChannels, float sampleRate);
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virtual bool RealtimeFinalize();
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virtual sampleCount RealtimeProcess(int group,
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float **inbuf,
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float **outbuf,
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sampleCount numSamples);
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virtual bool GetAutomationParameters(EffectAutomationParameters & parms);
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virtual bool SetAutomationParameters(EffectAutomationParameters & parms);
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// Effect implementation
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virtual void PopulateOrExchange(ShuttleGui & S);
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virtual bool TransferDataToWindow();
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virtual bool TransferDataFromWindow();
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private:
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// EffectWahwah implementation
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void InstanceInit(EffectWahwahState & data, float sampleRate);
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sampleCount InstanceProcess(EffectWahwahState & data, float **inBlock, float **outBlock, sampleCount blockLen);
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void OnFreqSlider(wxCommandEvent & evt);
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void OnPhaseSlider(wxCommandEvent & evt);
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void OnDepthSlider(wxCommandEvent & evt);
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void OnResonanceSlider(wxCommandEvent & evt);
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void OnFreqOffSlider(wxCommandEvent & evt);
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void OnGainSlider(wxCommandEvent & evt);
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void OnFreqText(wxCommandEvent & evt);
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void OnPhaseText(wxCommandEvent & evt);
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void OnDepthText(wxCommandEvent & evt);
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void OnResonanceText(wxCommandEvent & evt);
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void OnFreqOffText(wxCommandEvent & evt);
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void OnGainText(wxCommandEvent & evt);
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private:
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EffectWahwahState mMaster;
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EffectWahwahStateArray mSlaves;
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/* Parameters:
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mFreq - LFO frequency
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mPhase - LFO startphase in RADIANS - useful for stereo WahWah
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mDepth - Wah depth
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mRes - Resonance
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mFreqOfs - Wah frequency offset
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mOutGain - output gain
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!!!!!!!!!!!!! IMPORTANT!!!!!!!!! :
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mDepth and mFreqOfs should be from 0(min) to 1(max) !
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mRes should be greater than 0 ! */
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double mFreq;
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double mPhase;
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int mDepth;
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double mRes;
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int mFreqOfs;
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double mOutGain;
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wxTextCtrl *mFreqT;
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wxTextCtrl *mPhaseT;
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wxTextCtrl *mDepthT;
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wxTextCtrl *mResT;
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wxTextCtrl *mFreqOfsT;
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wxTextCtrl *mOutGainT;
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wxSlider *mFreqS;
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wxSlider *mPhaseS;
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wxSlider *mDepthS;
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wxSlider *mResS;
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wxSlider *mFreqOfsS;
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wxSlider *mOutGainS;
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DECLARE_EVENT_TABLE();
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};
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#endif
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