win7下使用ddraw显示YUV数据，系统配色方案总会改为win7 basic

dixuexiongyingss 2014-08-20 06:19:03

下面是具体代码：

LPDIRECTDRAW            lpDD;                // DirectDraw 对象指针 

    LPDIRECTDRAWSURFACE     lpDDSPrimary;        // DirectDraw 主表面指针 

    LPDIRECTDRAWSURFACE     lpDDSOffScr;        // DirectDraw 离屏表面指针 

    DDSURFACEDESC            ddsd;                // DirectDraw 表面描述 

    RECT                    rctDest;            // 目标区域 

    RECT                    rctSour;            // 源区域 

    HRESULT                    ddRval;                // DirectDraw 函数返回值



    // 创建DirectCraw对象 

    if (DirectDrawCreate(NULL, &lpDD, NULL) != DD_OK)  

        return FALSE; 

    // 设置协作层 

    if (lpDD->SetCooperativeLevel(hWnd, 

        DDSCL_NORMAL | DDSCL_NOWINDOWCHANGES) != DD_OK) 

        return FALSE; 

    // 创建主表面 

    ZeroMemory(&ddsd, sizeof(ddsd)); 

    ddsd.dwSize = sizeof(ddsd); 

    ddsd.dwFlags = DDSD_CAPS; 

    ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE; 

    if (lpDD->CreateSurface(&ddsd, &lpDDSPrimary, NULL) != DD_OK) 

        return FALSE; 



    //DDSURFACEDESC surface;

    //surface.dwSize = sizeof(surface);

    

    //lpDDSPrimary->GetSurfaceDesc(&surface);

    // 创建离屏表面对象 

    ZeroMemory(&ddsd, sizeof(ddsd)); 

    ddsd.dwSize = sizeof(ddsd); 

    ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_VIDEOMEMORY; //DDSCAPS_OVERLAY



    DDSCAPS_OFFSCREENPLAIN; 

    ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT; 

    ddsd.dwWidth = DRAW_WIDHT; 

    ddsd.dwHeight = DRAW_HEIGHT; 

    ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT); 

    ddsd.ddpfPixelFormat.dwFlags  = DDPF_FOURCC | DDPF_YUV ; 

    ddsd.ddpfPixelFormat.dwFourCC = MAKEFOURCC('Y','V','1','2'); 

    ddsd.ddpfPixelFormat.dwYUVBitCount = 8; 

    if (lpDD->CreateSurface(&ddsd, &lpDDSOffScr, NULL) != DD_OK) 

        return FALSE;



    // 加载yv12图像文件 

    FILE * f = fopen("test.yv12","rb"); 

    LPBYTE lpYV12 = new BYTE[FILE_WIDTH * FILE_HEIGHT * 3 / 2]; 

    UINT iLen = fread(lpYV12, 1, FILE_WIDTH * FILE_HEIGHT * 3 / 2, f); 

    fclose(f); 

    LPBYTE lpY = lpYV12; 

    LPBYTE lpU = lpYV12 + FILE_WIDTH * FILE_HEIGHT; 

    LPBYTE lpV = lpYV12 + FILE_WIDTH * FILE_HEIGHT * 5 / 4; 

    ddRval = lpDDSOffScr->Lock(NULL,&ddsd,DDLOCK_WAIT | DDLOCK_WRITEONLY,NULL); 

    while(ddRval == DDERR_WASSTILLDRAWING); 

    if(ddRval != DD_OK) 

        return FALSE; 

    LPBYTE lpSurf = (LPBYTE)ddsd.lpSurface; 

    LPBYTE lpY1 = lpSurf; 

    /*LPBYTE lpV1 = lpSurf + ddsd.lPitch * FILE_HEIGHT; 

    LPBYTE lpU1 = lpV1 + ddsd.lPitch  * FILE_HEIGHT / 4; 

    */

    LPBYTE lpU1 = lpSurf + ddsd.lPitch * FILE_HEIGHT; 

    LPBYTE lpV1 = lpU1 + ddsd.lPitch  * FILE_HEIGHT / 4; 

    int nOffset = DRAW_TOP*FILE_WIDTH+DRAW_LEFT; 

    // 填充离屏表面 

    if(lpSurf) 

    { 

        int i = 0; 

        // fill Y data 

        lpY += nOffset; 

        for(i=0; i<ddsd.dwHeight; i++) 

        { 

            memcpy(lpSurf, lpY, ddsd.dwWidth); 

            lpY += FILE_WIDTH; 

            lpSurf += ddsd.lPitch; 

        } 

       

        // fill V data 

        lpV += DRAW_TOP * FILE_WIDTH / 4 + DRAW_LEFT / 2; 

        for(i=0; i<ddsd.dwHeight/2; i++) 

        { 

            memcpy(lpSurf, lpV, ddsd.dwWidth / 2); 

            lpV += FILE_WIDTH / 2; 

            lpSurf += ddsd.lPitch / 2; 

        } 

        

        // fill U data 

        lpU += DRAW_TOP * FILE_WIDTH / 4 + DRAW_LEFT / 2; 

        for(i=0; i<ddsd.dwHeight/2; i++) 

        { 

            memcpy(lpSurf, lpU, ddsd.dwWidth / 2); 

            lpU += FILE_WIDTH / 2; 

            lpSurf += ddsd.lPitch / 2; 

        }

    } 

    lpDDSOffScr->Unlock(NULL); 

    delete lpYV12;



    // Blt到主表面上 

    rctSour.left = 0; 

    rctSour.top = 0; 

    rctSour.right = ddsd.dwWidth; 

    rctSour.bottom = ddsd.dwHeight; 

    GetClientRect(hWnd,&rctDest); 

    ClientToScreen(hWnd, (LPPOINT)&rctDest.left); 

    ClientToScreen(hWnd, (LPPOINT)&rctDest.right);



    ddRval = lpDDSPrimary->Blt(&rctDest, lpDDSOffScr, &rctSour, DDBLT_ASYNC | DDBLT_WAIT, NULL); 

    while(ddRval == DDERR_WASSTILLDRAWING); 

    if(ddRval != DD_OK) 

        return FALSE; 

    // 释放DirectDraw对象 

    if(lpDD != NULL) 

    { 

        if(lpDDSPrimary != NULL) 

        { 

            lpDDSPrimary->Release(); 

            lpDDSPrimary = NULL; 

        } 

        if(lpDDSOffScr != NULL) 

        { 

            lpDDSOffScr->Release(); 

            lpDDSOffScr = NULL; 

        } 

        lpDD->Release(); 

        lpDD = NULL; 

    } 

    return TRUE;