#ifndef  _HIGHLIGHT_USB_H_
#define  _HIGHLIGHT_USB_H_
#include "common.h"
class QImage;
namespace Highlight
{
	class USB
	{
	public:
		USB(char* name = "/dev/video0");
	public:
		
		//static const int DEFAULT_WIDTH = 320;
		//static const int DEFAULT_HEIGHT= 240;
		enum pix
		{
			DEFAULT_WIDTH = 320,
			DEFAULT_HEIGHT = 240
		};
	private:
		v4ldevice vd;
		char* devName;
		int len;
		short currentGrap, currentDisplay;
		bool isFirstGrap;
		int curWidth, curHeight;
		unsigned char * returnBuf;
		short n;
		bool isOpen;
		bool isShow;
	public:
		bool isopen();
		bool isshow();
		bool openDevice();
		bool getPicture();
		void setPicture(video_picture &newPic);
		void setContrast(int contrast);
		int  getContrast();
		void setBrightness(int brightness);
		int  getBrightness();
		void setHue(int hue);
		int  getHue();
		bool getCapability();
		void setCapability(video_capture &newPic);
		bool initDevice();
		//bool getMemory(int width = DEFAULT_WIDTH,int height = DEFAULT_HEIGHT);
		bool readData();
		void closeDevice();
		void playMode(bool isHigh);
		unsigned char* getBuffer();
		void setMmap();
		inline const int getCurrentWidth(){ return curWidth; }
		inline const int getCurrentHeight() { return curHeight; }
	private:
		void setCapture();
		void changeResolution();
		void setMbuf();
	};
};
#endif