y@0: /*
y@0:   ==============================================================================
y@0: 
y@0:     This file was auto-generated!
y@0: 
y@0:     It contains the basic startup code for a Juce application.
y@0: 
y@0:   ==============================================================================
y@0: */
y@0: 
y@0: #ifndef __PLUGINPROCESSOR_H_4693CB6E__
y@0: #define __PLUGINPROCESSOR_H_4693CB6E__
y@0: 
y@0: #include "../JuceLibraryCode/JuceHeader.h"
y@0: 
y@0: 
y@0: //==============================================================================
y@0: /**
y@0: */
y@0: class BassPedalRackProcessor  : public AudioProcessor
y@0: {
y@0: public:
y@0:     //==============================================================================
y@0:     BassPedalRackProcessor();
y@0:     ~BassPedalRackProcessor();
y@0: 
y@0:     //==============================================================================
y@0:     void prepareToPlay (double sampleRate, int samplesPerBlock);
y@0:     void releaseResources();
y@0: 
y@0:     void processBlock (AudioSampleBuffer& buffer, MidiBuffer& midiMessages);
y@0: 
y@0:     //==============================================================================
y@0:     AudioProcessorEditor* createEditor();
y@0:     bool hasEditor() const;
y@0: 
y@0:     //==============================================================================
y@0:     const String getName() const;
y@0: 
y@0:     int getNumParameters();
y@0: 
y@0:     float getParameter (int index);
y@0:     void setParameter (int index, float newValue);
y@0: 
y@0:     const String getParameterName (int index);
y@0:     const String getParameterText (int index);
y@0: 
y@0:     const String getInputChannelName (int channelIndex) const;
y@0:     const String getOutputChannelName (int channelIndex) const;
y@0:     bool isInputChannelStereoPair (int index) const;
y@0:     bool isOutputChannelStereoPair (int index) const;
y@0: 
y@0:     bool silenceInProducesSilenceOut() const;
y@0:     bool acceptsMidi() const;
y@0:     bool producesMidi() const;
y@0:     
y@0:     double getTailLengthSeconds() const;
y@0: 
y@0:     //==============================================================================
y@0:     int getNumPrograms();
y@0:     int getCurrentProgram();
y@0:     void setCurrentProgram (int index);
y@0:     const String getProgramName (int index);
y@0:     void changeProgramName (int index, const String& newName);
y@0: 
y@0:     //==============================================================================
y@0:     void getStateInformation (MemoryBlock& destData);
y@0:     void setStateInformation (const void* data, int sizeInBytes);
y@0:     
y@0:     //==============================================================================
y@0:     
y@0:     // these are used to persist the UI's size - the values are stored along with the
y@0:     // filter's other parameters, and the UI component will update them when it gets
y@0:     // resized.
y@0:     int lastUIWidth_, lastUIHeight_;
y@0: 
y@0: 
y@0: 
y@0:     enum Parameters
y@0:     {
y@0:         kMixParam = 0,
y@0: 		kLowCutParam,
y@0: 		kIndexParam,
y@0: 		kGainParam,
y@0: 		kHighCutParam,
y@0: 		kGainTreParam,
y@0: 		kGainMidParam,
y@0: 		kGainLowParam,
y@0: 		kGain1Param,
y@0: 		kGain2Param,
y@0: 		kGain3Param,
y@0: 		kGain4Param,
y@0: 		kGain5Param,
y@0: 		kGain6Param,
y@0: 		kGain7Param,
y@0: 		kGain8Param,
y@0: 		kGain9Param,
y@0:         kNumParameters
y@0:     };
y@0:     //Distortion related parameters
y@0: 	float index_;		//Distortion index (x = x*index_)
y@0: 	//gainN is the gain of the Nth Chebychev polynomial => gain of the Nth harmonic for a sinusoid
y@0: 	float gain1_, gain2_, gain3_, gain4_, gain5_, gain6_, gain7_, gain8_, gain9_;
y@0: 	
y@0: 	float gain_;		//Overall gain of the amp => volume
y@0: 	
y@0: 	int lowCut_, highCut_;	//indices of the low pass filter (0 is allpass, max is nopass)
y@0: 	float mix_;			//Mix between the low and high (0 is only low, 1 is only high)
y@0: 	
y@0: 	float bassGain_, midGain_, trebleGain_;  //gains for Low, Mid and Treble
y@0: 	
y@0: private:
y@0: 
y@0: //Variables for tones
y@0: 	    //temp variable for polynomial of tone control
y@0: 		//lower case for transfer function, capital for filter coefficent
y@0: 		//RC is the system's characterstic time (2 and 3 are respectivly square and cube of that)
y@0: 	double a1_, a2_, a3_, b1_, b2_, b3_, RC_, RC2_, RC3_, A0,A1,A2,A3,B0,B1,B2,B3;
y@0: 	double fsd_, fsd2_, fsd3_;//sampling frequency, then squared and cubed
y@0: 	int a0_;
y@0: 	    //Circular Buffers
y@0: 	double memIn_[3]; //input
y@0: 	double memOut_[3]; //output
y@0: 	int currInd_; //indice in the circular buffers 
y@0: 		//Memory for stereo
y@0: 	double tonStackIn_[6];  //input
y@0: 	double tonStackOut_[6];  //output
y@0: 
y@0: 	bool toneStack_, shaper_; //if tone Stack(or shaper) is applied
y@0: 	
y@0: //Variables for Chebychev distortion
y@0: 	double coeffs_[10]; //Coefficient fo the polynomial
y@0: 	float scale_; //scale to attenuate the gain of the distortion
y@0: 	
y@0: //Variables for high and low pass filters
y@0: 	double lastIn_[151];   //input circular buffer
y@0: 	double inputMem_[302]; //Memory for stereo
y@0: 	int filterLength_;     //length of the filters
y@0: 	int filterInd_;        //indice for the circular buffer
y@0: 	
y@0: 	
y@0: 	//Update distortion coefficients 
y@0: 	void changeCoefficients(int kcase); //kcase enable to only update relevant coefficients
y@0: 	//Update the tone coefficients
y@0: 	void changeToneStack();
y@0: 	//Save and load previous buffer for stereo handling
y@0: 	void saveMem(int channel);
y@0: 	void loadMem(int channel);
y@0: 	
y@0: 	//Apply low and high pass filter
y@0: 	double* applyFilter(float input);
y@0: 	//Apply Chebychev Distotion
y@0: 	float shaper(float x);
y@0: 	//Apply Tone control
y@0: 	float applyToneStack(float);
y@0: 
y@0:     //==============================================================================
y@0:     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BassPedalRackProcessor);
y@0: 	
y@0: };
y@0: 
y@0: #endif  // __PLUGINPROCESSOR_H_4693CB6E__