WM下有没有什么好的显示动画GIF的类库?

gln 2009-11-18 10:59:44
如题,要C++的,谢谢
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gln 2009-11-18
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Gif89a是GIF的格式名吧
beautymind2008 2009-11-18
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Gif89a
gln 2009-11-18
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谢谢,我试试
pysjp 2009-11-18
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BOOL CGIFShow::Load(LPCTSTR filename)

{

    HANDLE hFile;

    DWORD size,size1,readbyte;

    BYTE temp[13];



    if(m_bEmbed)

        return FALSE;

    

    Stop();

    if(m_pcGlobalColorTable!=NULL)

        delete[] m_pcGlobalColorTable;

    if(m_pcGif!=NULL)

        delete[] m_pcGif;

    if(m_hRedrawBitmap!=0)

    {

        DeleteObject(m_hRedrawBitmap);

        m_hRedrawBitmap=0;

    }

    m_pcGlobalColorTable=m_pcGif=0;

    m_iTotalReadByte=0;

    m_iGifSize=m_iGlobalColorSize=0;

    

    hFile = CreateFile(filename,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);

    if(INVALID_HANDLE_VALUE==hFile)

        return FALSE;

    size=GetFileSize(hFile,&size1);

    if(size==0xFFFFFFFF)

    {

        CloseHandle(hFile);

        return FALSE;

    }

    ReadFile(hFile,temp,13,&readbyte,NULL);

    if((readbyte!=13)||((temp[0]!='G')||(temp[1]!='I')||

        (temp[2]!='F')||(temp[3]!='8')||((temp[4]!='7')&&

        (temp[4]!='9'))||(temp[5]!='a')))

    {

        CloseHandle(hFile);

        return FALSE;

    }

    

    m_iGifWidth=*(temp+6);

    m_iGifHeight=*(temp+8);

    m_iBackgroundColor=temp[11];

    if(temp[10]&0x80)

    {

        m_iGlobalColorSize=0x01<<((temp[10]&0x07)+1);

        m_pcGlobalColorTable=new BYTE[3*m_iGlobalColorSize];

        ReadFile(hFile,m_pcGlobalColorTable,3*m_iGlobalColorSize,&readbyte,NULL);

        if(readbyte!=(DWORD)3*m_iGlobalColorSize)

        {

            delete[] m_pcGlobalColorTable;

            m_pcGlobalColorTable=0;

            m_iGlobalColorSize=0;

            CloseHandle(hFile);

            return FALSE;

        }

    }



    m_iGifSize=size-3*m_iGlobalColorSize-12;

    m_pcGifTrack=m_pcGif=new BYTE[m_iGifSize];

    ReadFile(hFile,m_pcGif,m_iGifSize,&readbyte,NULL);

    CloseHandle(hFile);

    return TRUE;

}



HBITMAP CGIFShow::NextImage(void)

{

    if(m_pcGif==NULL)return 0;

    

label2: if(m_iTotalReadByte>m_iGifSize)

    {

        m_pcGifTrack=m_pcGif;

        m_iTotalReadByte=0;return 0;

    }

    m_iTotalReadByte++;

    switch(*m_pcGifTrack++)

    {

    case 0x2C:

        return TakeIt();

        break;

    case 0x21:

            BYTE cSize;

            m_iTotalReadByte++;

            switch(*m_pcGifTrack++)

            {

            case 0xF9:

                m_pcGifTrack++;//block size

                m_iDisposalMethod=(*m_pcGifTrack)&28;

                m_bTransparentIndex=(*m_pcGifTrack++)&1;



                m_iDelayTime=*m_pcGifTrack;

                m_pcGifTrack+=2;

                m_iTransparentIndex=*m_pcGifTrack++;

                m_iTotalReadByte+=5;

                break;

            case 0xFE:

                while((cSize=*m_pcGifTrack)!=0)

                {

                    m_pcGifTrack+=cSize+1;

                    m_iTotalReadByte+=cSize+1;

                    if(m_iTotalReadByte>m_iGifSize)

                        return 0;

                }

                break;

            case 0x01:

                m_pcGifTrack+=13;

                m_iTotalReadByte+=13;

                while((cSize=*m_pcGifTrack)!=0)

                {

                    m_pcGifTrack+=cSize+1;

                    m_iTotalReadByte+=cSize+1;

                    if(m_iTotalReadByte>m_iGifSize)

                        return 0;

                }

                break;

            case 0xFF:

                m_pcGifTrack+=12;

                m_iTotalReadByte+=12;

                while((cSize=*m_pcGifTrack)!=0)

                {

                    m_pcGifTrack+=cSize+1;

                    m_iTotalReadByte+=cSize+1;

                    if(m_iTotalReadByte>m_iGifSize)

                        return 0;

                }

                break;

            default:

                return FALSE;

            }

            m_pcGifTrack++;

            m_iTotalReadByte++;

            if(m_iTotalReadByte>m_iGifSize)

                return 0;

            goto label2;

            break;

    case 0x3B:

        m_pcGifTrack=m_pcGif;

        m_iTotalReadByte=0;

        goto label2;

    case 0:

        goto label2;

    default:

        return FALSE;

    }

}
pysjp 2009-11-18
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#include "stdafx.h"

#include "GifShow.h"



DWORD WINAPI ThreadFunc(CGIFShow* ptr)

{

    ptr->Play1();

    return 0;

}



void CGIFShow::Play()

{

    HANDLE hThread;

    DWORD ThreadId;

    if(m_hWndHDC==0)return ;

    if(m_pcGif==0)return;

    if(m_EndRun==5)return;

    m_pcGifTrack=m_pcGif;

    m_iTotalReadByte=0;

    m_EndRun=5;

    hThread=CreateThread(NULL,0,(unsigned long(_stdcall*)(void*))ThreadFunc,this,0,&ThreadId);

    CloseHandle(hThread);

    return;

}



BOOL CGIFShow::Play1(void)

{

    HDC hDC,hMemDC,hMemDC1,hPauseMemDC;

    HBITMAP hOldBitmap,hOldBitmap1,hBitmap,hPreviousBitmap,hPauseBitmap;

    DWORD systimer1,systimer2,speed;

    BOOL PauseShow = FALSE;



    hDC = m_hWndHDC;

    hMemDC = ::CreateCompatibleDC(hDC);

    hMemDC1 = ::CreateCompatibleDC(hDC);

    hPauseMemDC = ::CreateCompatibleDC(hDC);

    m_hDC = hDC;

    hPreviousBitmap = 0;

    while(m_bLockBitmap)

    {

    }



    m_bLockBitmap = TRUE;

    if(m_hRedrawBitmap != 0)

    {

        DeleteObject(m_hRedrawBitmap);

    }

    m_hRedrawBitmap = ::CreateCompatibleBitmap(hDC,m_iGifWidth,m_iGifHeight);

    hOldBitmap1 = (HBITMAP)SelectObject(hMemDC1,m_hRedrawBitmap);

    hPauseBitmap = ::CreateCompatibleBitmap(hDC,m_iGifWidth,m_iGifHeight);

    SelectObject(hPauseMemDC,hPauseBitmap);

    

    ::BitBlt(hMemDC1,0,0,m_iGifWidth,m_iGifHeight,hDC,m_nPosX,m_nPosY,SRCCOPY);

    SelectObject(hMemDC1,hOldBitmap1);

    m_bLockBitmap = FALSE;

    m_iDisposalMethod = DISPOSAL_NOT;

    while(1 != m_EndRun)

    {

        systimer2=systimer1 = GetTickCount();

        while(m_bLockBitmap)

        {

        }

        m_bLockBitmap = TRUE;

        hOldBitmap1 = (HBITMAP)SelectObject(hMemDC1,m_hRedrawBitmap);

        

        switch(m_iDisposalMethod)

        {

        case DISPOSAL_NO:

            break;

        case DISPOSAL_NOT:

            break;

        case DISPOSAL_RESTBACK:

        case DISPOSAL_RESTORE:

            hOldBitmap = (HBITMAP)SelectObject(hMemDC,hPreviousBitmap);

            ::BitBlt(hMemDC1,m_iLeft,m_iTop,m_iWidth,m_iHeight,hMemDC,0,0,SRCCOPY);

            SelectObject(hMemDC,hOldBitmap);

            DeleteObject(hPreviousBitmap);

            hPreviousBitmap = 0;

            break;

        }

        m_iDisposalMethod = DISPOSAL_NO;

        

        if(!PauseShow)

        {

            hBitmap=NextImage();



            switch(m_iDisposalMethod)

            {

            case DISPOSAL_NO:

                break;

            case DISPOSAL_NOT:

                break;

            case DISPOSAL_RESTBACK:

            case DISPOSAL_RESTORE:

                hPreviousBitmap = ::CreateCompatibleBitmap(hDC,m_iWidth,m_iHeight);

                hOldBitmap = (HBITMAP)SelectObject(hMemDC,hPreviousBitmap);

                ::BitBlt(hMemDC,0,0,m_iWidth,m_iHeight,hMemDC1,m_iLeft,m_iTop,SRCCOPY);

                SelectObject(hMemDC,hOldBitmap);

                break;

            }

            hOldBitmap = (HBITMAP)SelectObject(hMemDC,hBitmap);

            if(m_bTransparentIndex)

            {

                HBITMAP    bmAndBack, bmAndObject;

                HBITMAP    bmBackOld, bmObjectOld;

                HDC        hdcBack, hdcObject;

                COLORREF cColor;



                hdcBack = ::CreateCompatibleDC(hDC);

                hdcObject = ::CreateCompatibleDC(hDC);

                bmAndBack = CreateBitmap(m_iWidth,m_iHeight,1,1,NULL);

                bmAndObject = CreateBitmap(m_iWidth,m_iHeight,1,1,NULL);

                bmBackOld = (HBITMAP)SelectObject(hdcBack,bmAndBack);

                bmObjectOld = (HBITMAP)SelectObject(hdcObject,bmAndObject);

                cColor = SetBkColor(hMemDC,m_TransparentColor);

                ::BitBlt(hdcObject,0,0,m_iWidth,m_iHeight,hMemDC,0,0,SRCCOPY);

                SetBkColor(hMemDC,cColor);

                ::BitBlt(hdcBack,0,0,m_iWidth,m_iHeight,hdcObject,0,0,NOTSRCCOPY);

                ::BitBlt(hMemDC1,m_iLeft,m_iTop,m_iWidth,m_iHeight,hdcObject,0,0,SRCAND);

                ::BitBlt(hMemDC,0,0,m_iWidth,m_iHeight,hdcBack,0,0,SRCAND);

                ::BitBlt(hMemDC1,m_iLeft,m_iTop,m_iWidth,m_iHeight,hMemDC,0,0,SRCPAINT);

                DeleteObject(SelectObject(hdcBack,bmBackOld));

                DeleteObject(SelectObject(hdcObject,bmObjectOld));

                DeleteDC(hdcBack);

                DeleteDC(hdcObject);

            }

            else

            {

                ::BitBlt(hMemDC1,m_iLeft,m_iTop,m_iWidth,m_iHeight,hMemDC,0,0,SRCCOPY);

            }

            SelectObject(hMemDC,hOldBitmap);

            DeleteObject(hBitmap);

            ::BitBlt(hDC,m_nPosX,m_nPosY,m_iGifWidth,m_iGifHeight,hMemDC1,0,0,SRCCOPY);

            ::BitBlt(hPauseMemDC,0,0,m_iGifWidth,m_iGifHeight,hMemDC1,0,0,SRCCOPY);



        }

        else

        {

            ::BitBlt(hDC,m_nPosX,m_nPosY,m_iGifWidth,m_iGifHeight,hPauseMemDC,0,0,SRCCOPY);

        }



        SelectObject(hMemDC1,hOldBitmap1);

        m_bLockBitmap = FALSE;

        if(0 != m_iDelayTime)

            speed = m_iDelayTime * 10;

        else

            speed=m_dwSpeed;

        while((1 != m_EndRun)&&(speed > systimer2 - systimer1))

        {

            Sleep(10);

            systimer2 = GetTickCount();

        }

    PauseShow = m_bPause;

    }

    if(hPreviousBitmap != 0)

        DeleteObject(hPreviousBitmap);

    DeleteDC(hMemDC);

    DeleteDC(hMemDC1);

    //::ReleaseDC(hDC);

    m_EndRun = 2;

    return TRUE;

}





void CGIFShow::Stop()

{

    if(m_EndRun != 5)

        return;

    m_EndRun = 1;

    while(m_EndRun != 2)

    {

    }

    return;

}



CGIFShow::CGIFShow(HDC pWnd)

{

    m_hWndHDC=pWnd;

    m_bPause=FALSE;

    m_bAutoStart=TRUE;

    m_bAutoSize1=TRUE;

    m_bEmbed=FALSE;

    m_pcGlobalColorTable=0;

    m_pcGif=0;

    m_iGifSize=0;

    m_iGlobalColorSize=0;

    m_bTransparentIndex=FALSE;

    m_iDelayTime=0;

    m_EndRun=0;

    m_dwSpeed=50;

    m_hRedrawBitmap=0;

    m_bLockBitmap=FALSE;

    flag=0;

    m_nPosX=0;

    m_nPosY=0;

    wcscpy(filename,_T(""));

    m_bRunMode=1;

    m_bGlass=FALSE;

}



CGIFShow::~CGIFShow(void)

{

    Stop();

    if(m_hRedrawBitmap!=0)

        DeleteObject(m_hRedrawBitmap);

    if(m_pcGlobalColorTable!=NULL)

        delete[] m_pcGlobalColorTable;

    if(m_pcGif!=NULL)

        delete[] m_pcGif;

}
pysjp 2009-11-18
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下面是别人写的



1) GIF显示类头文件

//////GIFShow.h////////

#ifndef GIFSHOW_H

#define GIFSHOW_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 CGIFShow

{

private:

    HDC     m_hWndHDC;

    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:

    CGIFShow(HDC pWnd);

    ~CGIFShow();

    void Play();

    void Pause(bool status);///暂停运行

    void Stop();

    void SetPosition(int x,int y);

    BOOL Play1(void);

    BOOL Load(LPCTSTR filename);

    HBITMAP FirstImage(void);

    HBITMAP NextImage(void);

    HBITMAP TakeIt(void);

    HBITMAP DIBTohBitmap(HDC hDC,LPSTR   lpSrcDIB);



    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_uRemain)+tmp1;

                m_cCurentByte>>=(m_uBitSize-m_uRemain);

                m_uRemain=8-(m_uBitSize-m_uRemain);

            }

            else

            {

                tmp1=(((UINT)(m_cCurentByte))<<m_uRemain)+tmp1;

                m_cCurentByte=GetByte();

                tmp<<=m_uBitSize-m_uRemain-8;

                tmp--;

                tmp1=(((UINT)(m_cCurentByte&tmp))<<(m_uRemain+8))+tmp1;

                m_cCurentByte>>=m_uBitSize-m_uRemain-8;

                m_uRemain=8-(m_uBitSize-m_uRemain-8);

            }

        }

        return tmp1;

    }



};

#endif
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