windraw2.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

    if (pDrawCreate == NULL || pDrawEnum == NULL) {
        /* ... */
        ReleaseDirectDraw (ppDirectDraw, NULL, phDirectDraw);
        return E_NOINTERFACE;
    }
    
    /* create a DirectDraw display provider for this device,
    * using the fancy multimon-aware version, if it exists: */
    if (pDrawEnumEx)
        *ppDirectDraw = DirectDrawCreateFromDeviceEx (lpszDevice, pDrawCreate, pDrawEnumEx);
    else
        *ppDirectDraw = DirectDrawCreateFromDevice (lpszDevice, pDrawCreate, pDrawEnum);
    if (*ppDirectDraw == NULL) 
    {
        ReleaseDirectDraw (ppDirectDraw, NULL, phDirectDraw);
        return E_NOINTERFACE;
    }
    
    return NOERROR;
}

/*
* Called to release any DirectDraw provider we previously loaded.
* We may be called at any time especially when something goes
* horribly wrong and when we need to clean up before returning
* so we can't guarantee that all state variables are consistent
* so free only those really allocated. This should only be called
* once all the reference counts have been released.
*/
void ReleaseDirectDraw (LPDIRECTDRAW *ppDirectDraw, LPDIRECTDRAW2 *ppDirectDraw2,  HINSTANCE *phDirectDraw)
{
    /* release any DirectDraw provider interface: */
    if (ppDirectDraw && *ppDirectDraw) {
        
        IDirectDraw_Release (*ppDirectDraw);
        *ppDirectDraw = NULL;
    }
    
    if (ppDirectDraw2 && *ppDirectDraw2) 
    {
        (*ppDirectDraw2)->Release();
        *ppDirectDraw2 = NULL;
    }
    
    /* decrement module load count: */
    if (*phDirectDraw) {
        FreeLibrary (*phDirectDraw);
        *phDirectDraw = NULL;
    }
}

#if 0
/*
* Are we running on Direct Draw version 1?  We need to find out as
* we rely on specific bug fixes in DirectDraw 2 for fullscreen playback. To
* find out, we simply see if it supports IDirectDraw2.  Only version 2 and
* higher support this.
*/
BOOL IsDirectDrawVersion1 (LPDIRECTDRAW pDirectDraw)
{
    IDirectDraw2 *p;
    HRESULT hr;
    
    /* check if DirectDraw is available: */
    if (pDirectDraw == NULL)
        return FALSE;
    
    /* query and release interface: */
    p = NULL;
    hr = IDirectDraw_QueryInterface(pDirectDraw, IID_IDirectDraw2, (void *)&p);
    if (p)
        IDirectDraw2_Release (p);
    
    /* returns TRUE, if !IDrectDraw2; FALSE otherwise */
    return hr != NOERROR;
}
#endif

/***************************************
*
* Routines for using GDI on a multimonitor system
*
*/

/*
* Get display DC.
* Use:
*  HDC GetDisplayDC (LPSTR lpszDevice)
* Input:
*  lpszDevice - device name to use (in a multimonitor system)
* Returns:
*  NULL, if error; !NULL - display device DC.
*/
static HDC GetDisplayDC (LPSTR lpszDevice)
{
    HDC hdcDisplay;
    
    /* get a DC on the right monitor - it's ugly, but this is the way
    * you have to do it */
    if (lpszDevice == NULL || lstrcmpiA (lpszDevice, "DISPLAY") == 0)
        hdcDisplay = CreateDCA ("DISPLAY", NULL, NULL, NULL);
    else
        hdcDisplay = CreateDCA (NULL, lpszDevice, NULL, NULL);
    
    return hdcDisplay;
}

/*
* Get pixel format for a given device context.
* Use:
*  HRESULT GetDeviceFormat (HDC hDC, LPBMI lpbmi);
* Input:
*  hDC - device context to query
*  lpbmi - pointer to a bitmapinfo structure to initialize
* Returns:
*  NOERROR, if success, E_FAIL otherwise.
*/
static HRESULT GetDeviceFormat (HDC hDC, LPBMI lpbmi)
{
    HBITMAP hBM;
    
    /* initialize the bitmapinfo structure: */
    memset (lpbmi, 0, sizeof (BMI));
    lpbmi->bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
    lpbmi->bmiHeader.biBitCount = 0;
    
    /* retrieve display format parameters: */
    hBM = CreateCompatibleBitmap (hDC,1,1);
    GetDIBits (hDC,hBM,0,1,NULL, (BITMAPINFO *)& (lpbmi->bmiHeader),DIB_RGB_COLORS);
    /* this call will get the color table or the proper bitfields */
    GetDIBits (hDC,hBM,0,1,NULL, (BITMAPINFO *)& (lpbmi->bmiHeader),DIB_RGB_COLORS);
    DeleteObject (hBM);
    
    /* check the validity of the format & exit: */
    return CheckBitmap ((BITMAPINFO *)& (lpbmi->bmiHeader))? NOERROR: E_FAIL;
}

/*
* Retrieves display pixel format. This is normally called
* when we receive WM_DEVMODECHANGED device change messages.
*
* The optional szDevice parameter tells us which monitor we are interested
* in for a multi monitor system.
*
* The calling program mush use global syncronization objects to prevent
* re-entering this code.
*/
static HRESULT GetDisplayFormat (LPBMI lpbmi, LPSTR lpszDevice)
{
    HDC hdcDisplay;
    HRESULT hr;
    
    /* get a DC of a given monitor: */
    if ((hdcDisplay = GetDisplayDC (lpszDevice)) == NULL)
        return E_FAIL;
    
    /* retrieve display format parameters: */
    hr = GetDeviceFormat (hdcDisplay, lpbmi);
    
    /* delete hdcDisplay & exit: */
    DeleteDC (hdcDisplay);
    return hr;
}

/*
* Generates the "standard" WinDraw palette.
* Since we will have to deal with multiple datatypes, each having
* its own combination of colors, what we really need is some "uniform"
* palette, we could use to render all these objects with minimum loss
* of quality.
* This function generates so-called 6x6x6-color palette that contains
* all possible combinations of 6 uniformly-displaced values for each
* color component (R, G, and B). To avoid interference with Windows
* system palette (first and last 10 entries in the palette), we will
* insert our colors in 10..225 range, and mark them as non-collapsable
* in hope to boost the performance (ideally, this should prevent GDI
* from compressing the palette, and eliminate extra mapping).
*/
static HRESULT CreateDefaultPalette (LPPALETTEENTRY lppe,
				     int *pnLoColor, int *pnHiColor, LPSTR lpszDevice)
{
    HDC hdc;
    HRESULT hr = E_FAIL;
    unsigned int i, r, g, b;
    
    /* get a DC of a given monitor: */
    if ((hdc = GetDisplayDC (lpszDevice)) != NULL) {
	
        /* apparently some displays have odd numbers of system colors: */
        if (GetDeviceCaps (hdc, NUMRESERVED) == 20) {
	    
            /* retrieve system colors: */
            memset (lppe, 0, 256 * sizeof (RGBQUAD));
            GetSystemPaletteEntries (hdc, 0, 10, lppe);
            GetSystemPaletteEntries (hdc, 246, 10, lppe + 246);
	    
            /* generate 6x6x6 (~2.58 bits/channel) palette: */
            i = 10;
            for (b = 0; b <= 0xFF; b += 0x33)
		for (g = 0; g <= 0xFF; g += 0x33)
		    for (r = 0; r <= 0xFF; r += 0x33) {
			/* create a palette entry: */
			lppe [i].peGreen = g;
			lppe [i].peBlue  = b;
			lppe [i].peRed   = r;
			lppe [i].peFlags = PC_NOCOLLAPSE; /* !!! */
			i ++;
		    }
		    
		    /* store the range of our colors: */
		    *pnLoColor = 10;
		    *pnHiColor = i;
		    
		    hr = NOERROR;
        }
        DeleteDC (hdc);
    }
    return hr;
}

char*   
CollectDDInfo(LPWINDRAW lpwd, LPDIRECTDRAWSURFACE lpSurface, char *pFunction, char* pSeparator)
{
    char*       pszDDInfo = NULL;
    CHXString   pDDInfo;
    char        szTemp[MAX_DISPLAY_NAME];    /* Flawfinder: ignore */
    char        szTmp[MAX_DISPLAY_NAME];     /* Flawfinder: ignore */

    // write date and time of log
    SYSTEMTIME time;

    memset(&time, 0, sizeof(time));
    GetSystemTime(&time);

    GetDateFormat(LOCALE_SYSTEM_DEFAULT, 0, &time, "ddd',' MMM dd yyyy, ", szTmp, sizeof(szTmp));
    SafeSprintf(szTemp, MAX_DISPLAY_NAME, "\nLog Entry: %s", szTmp);
    pDDInfo = szTemp;
    
    GetTimeFormat(LOCALE_SYSTEM_DEFAULT, 0, &time, "hh:mm:ss tt", szTmp, sizeof(szTmp));
    SafeSprintf(szTemp, MAX_DISPLAY_NAME, "%s%s", szTmp, pSeparator);
    pDDInfo += szTemp;
    
    // write systime members
    SafeSprintf(szTemp, MAX_DISPLAY_NAME, "Systime: %d %d %d %d %d %d %d %d%s",
                time.wYear, time.wMonth, time.wDayOfWeek, time.wDay,
                time.wHour, time.wMinute, time.wSecond, time.wMilliseconds, pSeparator);
    pDDInfo += szTemp;
    
    // write function that caused fault
    SafeSprintf(szTemp, MAX_DISPLAY_NAME, "Function: %s%s", pFunction, pSeparator);
    pDDInfo += szTemp;

    // write OS version
    OSVERSIONINFO ver;
    memset(&ver, 0, sizeof(ver));
    ver.dwOSVersionInfoSize = sizeof(ver);

    GetVersionEx(&ver);

    SafeSprintf(szTemp, MAX_DISPLAY_NAME, 
                "OS MajorVersion: %ld MinorVersion: %ld BuildNum: %ld PlatformId: %ld Build: %s%s",
                ver.dwMajorVersion, ver.dwMinorVersion, ver.dwBuildNumber, ver.dwPlatformId, ver.szCSDVersion, pSeparator);
    pDDInfo += szTemp;

    // write processor info
    SYSTEM_INFO sysinfo;
    memset(&sysinfo, 0, sizeof(sysinfo));
    GetSystemInfo(&sysinfo);

    SafeSprintf(szTemp, MAX_DISPLAY_NAME, "Processor Type: %ld Level: %ld Revision: %ld Count: %ld%s",
                 sysinfo.dwProcessorType, 
                 sysinfo.wProcessorLevel, 
                 sysinfo.wProcessorRevision, 
                 sysinfo.dwNumberOfProcessors,
                 pSeparator);
    pDDInfo += szTemp;

    // write DD version
    TCHAR szVersion[256] = __TEXT("\0"); /* Flawfinder: ignore */
    HKEY hKey = 0;
    
    RegOpenKeyEx(HKEY_LOCAL_MACHINE, 
        __TEXT("Software\\Microsoft\\DirectX"),
        0, KEY_READ, &hKey);

    if (hKey)
    {
        DWORD dwType = REG_SZ;
        DWORD dwSize = sizeof(szVersion);
        RegQueryValueEx(hKey, __TEXT("Version"), NULL, &dwType, (BYTE*)szVersion, &dwSize);

        RegCloseKey(hKey);
    }

    SafeSprintf(szTemp, MAX_DISPLAY_NAME, "DirectDraw Version %s%s", szVersion, pSeparator);
    pDDInfo += szTemp;

    if (lpSurface)
    {
        // Get DD4* from the surface
        void* pVoid = NULL;
        IDirectDrawSurface2* lpSurface2 = NULL;
            
#if DIRECTDRAW_VERSION > 0x0500
        IDirectDraw4* pDD4 = NULL;
        IDirectDraw* pDD = NULL;
#endif //DIRECTDRAW_VERSION > 0x0500

        DDDEVICEIDENTIFIER ddID;
        memset(&ddID, 0, sizeof(ddID));

        lpSurface->QueryInterface(IID_IDirectDrawSurface2, (void**)&lpSurface2);
        
        if (lpSurface2)
        {
            lpSurface2->GetDDInterface(&pVoid);
            lpSurface2->Release();
        }

#if DIRECTDRAW_VERSION > 0x0500            
        if (pVoid)
            ((IUnknown*)pVoid)->QueryInterface(IID_IDirectDraw, (void**)&pDD);

        if (pDD)
        {
            pDD->QueryInterface(IID_IDirectDraw4, (void **)&pDD4);
            pDD->Release();
        }
        
        // Query for the driver descripton
        if (pDD4)
        {
            pDD4->GetDeviceIdentifier(&ddID, DDGDI_GETHOSTIDENTIFIER);
            pDD4->Release();
        }
        // DD4 not supportted (probably NT4)...use more drastic measures
        else
#endif //DIRECTDRAW_VERSION > 0x0500
        {
            // Check if we are runnning NT
            OSVERSIONINFO osVersion;
            memset(&osVersion,0, sizeof(OSVERSIONINFO));
            osVersion.dwOSVersionInfoSize  = sizeof(OSVERSIONINFO);

            if (GetVersionEx(&osVersion) && osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT)
            {
                char szChipType[MAXCHIPTYPE]; /* Flawfinder: ignore */
                
                // Try to get WinNT device information
                GetWinNTDeviceID (&ddID, szChipType);
            }
        }
        
        // write DD driver
        unsigned short data4 =  ddID.guidDeviceIdentifier.Data4[0]<<8  |
                                ddID.guidDeviceIdentifier.Data4[1];
        unsigned long  data5 =  ddID.guidDeviceIdentifier.Data4[2]<<24 | 
                                ddID.guidDeviceIdentifier.Data4[3]<<16 |
                                ddID.guidDeviceIdentifier.Data4[4]<<8  |
                                ddID.guidDeviceIdentifier.Data4[5];
        unsigned short data6 =  ddID.guidDeviceIdentifier.Data4[6]<<8  |
                                ddID.guidDeviceIdentifier.Data4[7];

        SafeSprintf(szTemp, MAX_DISPLAY_NAME,
                    "DirectDraw Driver: %s VendorID: %ld GUID {""%lx-%x-%x-%x-%lx%x""}%s",
                    ddID.szDescription, 
                    ddID.dwVendorId,
                    ddID.guidDeviceIdentifier.Data1,
                    ddID.guidDeviceIdentifier.Data2,
                    ddID.guidDeviceIdentifier.Data3,
                    data4,
                    data5,
                    data6,
                    pSeparator);
        pDDInfo += szTemp;
        
        // write display properties
        DDSURFACEDESC ddsd;
        memset(&ddsd, 0, sizeof(ddsd));
        ddsd.dwSize = sizeof(ddsd);
        lpSurface->GetSurfaceDesc(&ddsd);

        char fourCC[5] = {(char)(ddsd.ddpfPixelFormat.dwFourCC & 0x000000FF), /* Flawfinder: ignore */
                         ((char)(ddsd.ddpfPixelFormat.dwFourCC & 0x0000FF00)>>8),
                         ((char)(ddsd.ddpfPixelFormat.dwFourCC & 0x00FF0000)>>16),
                          (char)(ddsd.ddpfPixelFormat.dwFourCC>>24),
                          '\0'};

        SafeSprintf(szTemp, MAX_DISPLAY_NAME, 
                    "DisplayMode: %s %s BackBuffers: %ld Width: %ld Height: %ld%s",
                    (ddsd.ddsCaps.dwCaps & DDSCAPS_OVERLAY) ? "Overlay" : "Offscreen",
                    fourCC,
                    (ddsd.dwFlags & DDSD_BACKBUFFERCOUNT) ? ddsd.dwBackBufferCount : 0,
                    ddsd.dwWidth,
                    ddsd.dwHeight,
                    pSeparator);
        pDDInfo += szTemp;
    }
            
    BMI bmi;
    memset(&bmi, 0, sizeof(bmi));