www.pudn.com > RMS2000_C.rar > GifShare.h

//////Gif89a.h//////// 
 
#define DISPOSAL_NO 0 
#define DISPOSAL_NOT 4 
#define DISPOSAL_RESTBACK 8 
#define DISPOSAL_RESTORE 12 
 
typedef struct 
{ 
	BYTE bit; 
	WORD previouscode; 
	WORD nextcode; 
} GIFTABLE; 
 
 
class CGif89a 
{ 
private: 
	HWND    m_hWnd; 
	BOOL    m_bPause; 
	BOOL	m_bAutoStart; 
	BOOL	m_bEmbed; 
	BYTE	m_cCurentByte,m_cPackedField; 
	UINT	m_uBitSize,m_uPrimaryBitSize; 
	UINT	m_uRemain,m_uReadByte,m_uBlockSize; 
	int		m_iWidth,m_iHeight; 
	int		m_iTop,m_iLeft; 
	int		m_iFinishCode,m_iResetCode; 
	int		m_iPass,m_iRow; 
	int		m_iWidth1; 
	int		m_iBackgroundColor; 
	int		m_iGifSize; 
	int		m_x,m_y; 
	int		m_iGlobalColorSize; 
	int		m_iDisposalMethod; 
	BOOL	m_bTransparentIndex; 
	int		m_iTransparentIndex; 
	int		m_iDelayTime; 
	int		m_iTotalReadByte; 
	int		m_iMaxByte; 
	DWORD	m_dwSpeed; 
	COLORREF m_TransparentColor; 
	HDC		m_hDC; 
	BYTE*	m_pcGlobalColorTable; 
	BYTE*	m_pcBitmap; 
	BYTE*	m_pcGif; 
	BYTE*	m_pcGifTrack;  
	BOOL	m_bGlass; 
	volatile int m_EndRun; 
	HBITMAP m_hRedrawBitmap; 
	int		m_iGifWidth,m_iGifHeight; 
	volatile BOOL	m_bLockBitmap; 
	TCHAR	filename[_MAX_PATH]; 
	int		flag; 
	BOOL	m_bRunMode; 
	BOOL	m_bAutoSize1; 
	int     m_nPosX; 
	int     m_nPosY; 
 
public:	 
	CGif89a(HWND pWnd); 
	~CGif89a(); 
	void Play(); 
	void Pause(BOOL status);///ÔÝÍ£ÔËÐÐ 
	void Stop(); 
	void SetPosition(int x,int y); 
	BOOL Play1(void); 
	BOOL Load(LPCTSTR filename); 
	HBITMAP FirstImage(void); 
	HBITMAP NextImage(void); 
	HBITMAP TakeIt(void); 
 
	void Output(BYTE bit) 
	{ 
		int tmp; 
		if(m_cPackedField&0x40) 
		{ 
			if(m_x==m_iWidth) 
			{ 
				m_x=0; 
				if(m_iPass==1)m_iRow+=8; 
				if(m_iPass==2)m_iRow+=8; 
				if(m_iPass==3)m_iRow+=4; 
				if(m_iPass==4)m_iRow+=2; 
				if(m_iRow>=m_iHeight){m_iPass+=1;m_iRow=16>>m_iPass;} 
			} 
			tmp=m_iRow*m_iWidth1+m_x; 
			m_pcBitmap[tmp]=bit; 
			m_x++; 
		} 
		else 
		{ 
			if(m_x==m_iWidth){m_x=0;m_y++;} 
			tmp=m_y*m_iWidth1+m_x; 
			m_x++; 
		} 
		if(tmp>m_iMaxByte)return; 
		m_pcBitmap[tmp]=bit; 
	} 
 
	BYTE GetByte(void) 
	{ 
		if(m_uReadByte>=m_uBlockSize) 
		{ 
			m_uBlockSize=*m_pcGifTrack++; 
			m_uReadByte=0; 
			m_iTotalReadByte+=m_uBlockSize+1; 
			if(m_iTotalReadByte>m_iGifSize){m_iTotalReadByte-=m_uBlockSize+1;return 0xFF;} 
			if(m_uBlockSize==0){m_pcGifTrack--;m_iTotalReadByte--;return 0xFF;} 
		} 
		m_uReadByte++; 
		return *m_pcGifTrack++; 
	} 
 
	WORD GetCode(void) 
	{ 
		UINT tmp1; 
		BYTE tmp; 
		tmp=1; 
		if(m_uRemain>=m_uBitSize) 
		{ 
			tmp<<=m_uBitSize; 
			tmp--; 
			tmp1=m_cCurentByte&tmp; 
			m_cCurentByte>>=m_uBitSize; 
			m_uRemain-=m_uBitSize; 
		} 
		else 
		{ 
			tmp<<=m_uRemain; 
			tmp--; 
			tmp1=m_cCurentByte; 
			m_cCurentByte=GetByte(); 
			tmp=1; 
			if(8>=(m_uBitSize-m_uRemain)) 
			{ 
				tmp<<=(m_uBitSize-m_uRemain); 
				tmp--; 
				tmp1=(((UINT)(m_cCurentByte&tmp))<>=(m_uBitSize-m_uRemain); 
				m_uRemain=8-(m_uBitSize-m_uRemain); 
			} 
			else 
			{ 
				tmp1=(((UINT)(m_cCurentByte))<>=m_uBitSize-m_uRemain-8; 
				m_uRemain=8-(m_uBitSize-m_uRemain-8); 
			} 
		} 
		return tmp1; 
	} 
 
};