#ifndef _CVIDEOPRO_H_
#define _CVIDEOPRO_H_
#include <afxwin.h>
#include "vpptools.h"
#include "vpx.h"


/*
 * This class is the harware interface for
 * the image processor.
 * The image processor instantiates This class
 * to begin communicating with the framegrabber
 */

class CVideoPro
{
public:
	//Constructor for the class
	CVideoPro();

	//Destructor for the class 
	~CVideoPro();

	//Get one frame from the camera
	void grabFrame(void);

	//Grab a snapshot
	void snapshot(void);

	//Free all allocated buffers
	void freeBuffs(void);

	//Get the brightness
	int getBrightness(void);

	//Set the Brighness
	BOOL setBrightness(int val);

	//Get the contrast
	int getContrast(void);

	//Set the contrast
	BOOL setContrast(int val);

	//Get saturation
	int getSaturation(void);

	//Set the saturation
	BOOL setSaturation(int val);

	//Get the height of the image
	int getHeight(void);

	//Set the height of the image
	BOOL setHeight(int val);

	//Get the width of the image
	int getWidth(void);

	//Set the width of the image
	BOOL setWidth(int val);

	//Get the bit depth
	int getBitDepth(void);

	//Set the bit depth
	BOOL setBitDepth(int val);

	//Get the decimation
	int getDecimation(void);

	//Set the decimation
	BOOL setDecimation(int val);

	//Set the frame buffer
	//This allocates a DIB to store 
	//the frame in. 
	BOOL setFrameBuf(void);

	//Get frame
	unsigned char* getFrameBuf(void);

	//Set the background buffer
	BOOL setBGBuf(void);

	//Get the background
	unsigned char* getBGBuf(void);

	//Set the difference buffer
	BOOL setDiffBuf(void);

	//Get the difference buffer
	unsigned char* getDiffBuf(void);

	void display(CDC *pDC);
	//Check the return values of the the 
	//VideoPro library functions
	void check(VPP_Errno);

	BITMAPINFO* getFramebmi();
	DWORD getFramebmiSize();

	//Location and size of the frame where
	//the images will be drawn
	CRect frameRect;
	CRect bgRect;
	CRect diffRect;

	BOOL shouldDisplayFrame;
	BOOL shouldDisplayBG;
	BOOL shouldDisplayDiff;

protected:
	// This structure define in vpx.h
	// stores all the configuration 
	// params for the framegrabber.
	VPX_Config cfg;

	//Storage space for the frame
	HGLOBAL hScanDIB;

	//Storage space for the difference
	HGLOBAL hDiffDIB;

	//Storage space for the background
	HGLOBAL hBackDIB;

	//Bitmap parameter used by the functions
	// that allocate buffer space

    HGLOBAL *phDIB;
	HGLOBAL	hglb;
	BYTE VPP_far *linebuf;
	BYTE  *bitmappos;
	BITMAPINFO VPP_far *pbmiScan, *pbmiDiff, *pbmiBG;
	VPP_Word linelength;
	WORD ncolors;
	WORD bitsPerPixel;
	DWORD headerSize;
	VPP_SnapData VPP_far *snapData;

	//The first frame grabbed from the 
	//card after the card is initialized
	//involves more work than the rest
	BOOL isFirstFrame;

};

#endif //_CVIDEOPRO_H_