//

//

//

#ifndef FUTABA_GP1212A01_H

#define FUTABA_GP1212A01_H

#include "FutabaGP1212.h"

#include "FutabaVfd.h"

/**

GP1212A01A is a graphic display module using a FUTABA 256x64dots VFD.

The module do not include character ROM, the customer will compile the character

by themselves (from main system).

*/

class GP1212A01A : public GP1212XXXX

	{

public:

public:

    GP1212A01A();

    ~GP1212A01A();

	//

	int Open();

	//From FutabaGraphicVfd

    virtual int WidthInPixels() const {return KGP12xWidthInPixels;}

    virtual int HeightInPixels() const {return KGP12xHeightInPixels;}

	virtual void SetPixel(unsigned char aX, unsigned char aY, bool aOn);

	virtual void SetAllPixels(unsigned char aPattern);

    virtual int FrameBufferSizeInBytes() const {return KGP12xFrameBufferSizeInBytes;}

    virtual void BitBlit(const BitArray& aBitmap, int aSrcWidth, int aSrcHeight, int aTargetX, int aTargetY) const;

	//From FutabaVfd

	virtual void SetBrightness(int aBrightness);

	virtual void Clear();

	//Specific to GP1212A01A

	void SetPixelBlock(unsigned char aX, unsigned char aY, int aHeight, int aSize, unsigned char aValue);

    void SetPixelBlock(unsigned char aX, unsigned char aY, int aHeight, int aSize, unsigned char* aPixels);

    //Define display position within our display RAM

	void SetDisplayPosition(unsigned char aX, unsigned char aY);

    unsigned char DisplayPositionX() const {return iDisplayPositionX;}

    unsigned char DisplayPositionY() const {return iDisplayPositionY;}

    //

	void SwapBuffers();

    //

    void RequestDeviceId();

    void RequestFirmwareRevision();

    void RequestPowerSupplyStatus();

	//

	void ToggleOffScreenMode();

    void SetOffScreenMode(bool aOn);

    bool OffScreenMode() const {return iOffScreenMode;}

    //

    void SetFrameDifferencing(bool aOn){iUseFrameDifferencing=aOn;}

    bool FrameDifferencing() const {return iUseFrameDifferencing;}

    //

    bool RequestPending(){return iRequest!=EMiniDisplayRequestNone;}

    TMiniDisplayRequest CurrentRequest(){return iRequest;}

    void CancelRequest(){iRequest=EMiniDisplayRequestNone;}

    TMiniDisplayRequest AttemptRequestCompletion();

    FutabaVfdReport& InputReport() {return iInputReport;}

    bool PowerOn();

	char* DeviceId();

	char* FirmwareRevision();

private:

	enum DW

		{

        DW1=0xC0,

        DW2=0xD0

		};

	void SetDisplayPosition(DW aDw,unsigned char aX, unsigned char aY);

	unsigned char OffScreenY() const;

	void SendClearCommand();

	void OffScreenTranslation(unsigned char& aX, unsigned char& aY);

	void ResetBuffers();

    void SendModifiedPixelBlocks();

private:

	unsigned char iDisplayPositionX;

	unsigned char iDisplayPositionY;

	///Off screen mode is the recommended default settings to avoid tearing.

	///Though turning it off can be useful for debugging

	bool iOffScreenMode;

    ///Frame differences algo is used to reduce USB bus traffic and improve frame rate in typical use case

    bool iUseFrameDifferencing;

	///

	//FutabaVfdReport iReport;

	///

	//unsigned char iFrameBuffer[256*64];

    BitArray* iFrameNext;

    BitArray* iFrameCurrent;

    BitArray* iFramePrevious;

    //

    BitArray* iFrameAlpha;

    BitArray* iFrameBeta;

    BitArray* iFrameGamma;

    //

    int iNeedFullFrameUpdate;

	//unsigned char iFrameBeta[256*64];

	//unsigned char *iFrontBuffer;

	//unsigned char *iBackBuffer;

    TMiniDisplayRequest iRequest;

    FutabaVfdReport iInputReport;

	//

	char iDeviceId[KFutabaMaxHidReportSize];

	char iFirmwareRevision[KFutabaMaxHidReportSize];

    bool iPowerOn;

	};

#endif