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*/

#ifndef __WaveformViewDemo_h__

#define __WaveformViewDemo_h__

#include "WaveformViewDemoVersion.h"

#include "AUEffectBase.h"

#include "CARingBuffer.h"

#include "CABufferList.h"

#include "CAWaveformViewSharedData.h"

#if AU_DEBUG_DISPATCHER

    #include "AUDebugDispatcher.h"

#endif

// Here we define a custom property so the view is able to retrieve the wavefrom overview

// curve.  The curve changes often...

// custom properties id's must be 64000 or greater

// see <AudioUnit/AudioUnitProperties.h> for a list of Apple-defined standard properties

//

#pragma mark ___WaveformViewDemo Properties

enum

{

    kAudioUnitProperty_WaveformOverview = 65536,

    kAudioUnitProperty_SampleTimeStamp = 65537

};

#pragma mark ____WaveformViewDemo Parameters

#define kMaxWaveformSamples 44100

static const UInt64 kDefaultValue_BufferSize = kMaxWaveformSamples;

class WaveformViewKernel : public AUKernelBase      // the actual filter DSP happens here

{

public:

    WaveformViewKernel(AUEffectBase *inAudioUnit );

    virtual ~WaveformViewKernel();

    // processes one channel of non-interleaved samples

    virtual void        Process(    const Float32   *inSourceP,

                                    Float32         *inDestP,

                                    UInt32          inFramesToProcess,

                                    UInt32          inNumChannels,

                                    bool &          ioSilence);

    // resets the filter state

    virtual void        Reset();

    private:

};

#pragma mark ____WaveformViewDemo

class WaveformViewDemo : public AUEffectBase

{

public:

    WaveformViewDemo(AudioUnit component);

    virtual ~WaveformViewDemo ();

    void    Cleanup();

    virtual AUKernelBase *      NewKernel() { return new WaveformViewKernel(this); }

    void                        AllocateBuffers();

    void                        GetWaveformOverview(WaveformOverview* data);

    virtual OSStatus            GetParameterValueStrings(AudioUnitScope             inScope,

                                                         AudioUnitParameterID       inParameterID,

                                                         CFArrayRef *               outStrings);

    virtual OSStatus            GetParameterInfo(AudioUnitScope             inScope,

                                                 AudioUnitParameterID       inParameterID,

                                                 AudioUnitParameterInfo     &outParameterInfo);

    virtual OSStatus            GetPropertyInfo(AudioUnitPropertyID     inID,

                                                AudioUnitScope          inScope,

                                                AudioUnitElement        inElement,

                                                UInt32 &                outDataSize,

                                                Boolean &               outWritable );

    virtual OSStatus            GetProperty(AudioUnitPropertyID     inID,

                                            AudioUnitScope          inScope,

                                            AudioUnitElement        inElement,

                                            void *                  outData);

    virtual OSStatus            SetProperty(AudioUnitPropertyID         inID,

                                            AudioUnitScope              inScope,

                                            AudioUnitElement            inElement,

                                            const void *                inData,

                                            UInt32                      inDataSize);

    virtual Float64             GetTailTime(){return(0.0);}

    virtual bool                SupportsTail () { return true; }

    /*! @method Version */

    virtual OSStatus            Version() { return kWaveformViewDemoVersion; }

    virtual OSStatus            Initialize();

    virtual OSStatus            ChangeStreamFormat (AudioUnitScope                      inScope,

                                                    AudioUnitElement                    inElement,

                                                    const CAStreamBasicDescription &    inPrevFormat,

                                                    const CAStreamBasicDescription &    inNewFormat);

    OSStatus                    ProcessBufferLists( AudioUnitRenderActionFlags &    ioActionFlags,

                                                    const AudioBufferList &         inBuffer,

                                                    AudioBufferList &               outBuffer,

                                                    UInt32                          inFramesToProcess );

    private:

        CARingBuffer*           mAudioBuffer;       

        CABufferList*           mFetchingBufferList;

        AudioTimeStamp          mRenderStamp;

};

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#endif