C++ LPDIRECTDRAWSURFACE7::GetSurfaceDesc方法代码示例

/*****************************Private*Routine******************************\
* DDSurfEnumFunc
*
\**************************************************************************/
HRESULT WINAPI
DDSurfEnumFunc(
    LPDIRECTDRAWSURFACE7 pdds,
    DDSURFACEDESC2* pddsd,
    void* lpContext
    )
{
    LPDIRECTDRAWSURFACE7* ppdds = (LPDIRECTDRAWSURFACE7*)lpContext;

    DDSURFACEDESC2 ddsd;
    INITDDSTRUCT(ddsd);

    HRESULT hr = pdds->GetSurfaceDesc(&ddsd);
    if(SUCCEEDED(hr))
    {
        if(ddsd.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        {
            *ppdds = pdds;
            return DDENUMRET_CANCEL;

        }
    }

    pdds->Release();
    return DDENUMRET_OK;
}

//-------------------------------------------------------------------------
//  InitializeEnvironment
//  creates default allocator-presenter and sets D3D environment
//-------------------------------------------------------------------------
HRESULT CMultiSAP::InitializeEnvironment()
{
    HRESULT hr;
//    m_hMonitor = MonitorFromWindow(m_hwndApp, MONITOR_DEFAULTTOPRIMARY);

    hr = CreateDefaultAllocatorPresenter();
    if (hr != S_OK)
        return hr;

    BITMAPINFOHEADER  bi =
    {
        sizeof(BITMAPINFOHEADER), // biSize
            640,                      // biWidth
            480,                      // biHeight
            1,                        // biPlanes
            0,                        // biBitCount
            BI_RGB,                   // biCompression
            0,                        // biSizeImage,
            0,                        // biXpelsPerMeter
            0,                        // biYPelsPerMeter
            0,                        // biClrUsed
            0                         // biClrImportant
    };
    VMRALLOCATIONINFO ai =
    {
        AMAP_3D_TARGET,             // dwFlags
        &bi,                        // lpHdr
        NULL,                       // lpPicFmt
        {4, 3},                     // szAspectRatio
        1,                          // dwMinBuffers
        1,                          // dwMaxBuffers
        0,                          // dwInterlaceFlags
        {640, 480}                  // szNativeSize
    };

    DWORD dwBuffers = 0;
    LPDIRECTDRAWSURFACE7 lpDDSurf;
    hr = m_pAlloc->AllocateSurface(0, &ai, &dwBuffers, &lpDDSurf);
    if (hr != DD_OK)
        return hr;

    DDSURFACEDESC2 ddsd = {sizeof(DDSURFACEDESC2)};
    hr = lpDDSurf->GetSurfaceDesc(&ddsd);
    if (hr != DD_OK) {
        return hr;
    }

    //
    // Overlay surfaces have these flags set, we need to remove
    // these flags prior to calling GetAttachedSurface
    //
    ddsd.ddsCaps.dwCaps &= ~(DDSCAPS_FRONTBUFFER | DDSCAPS_VISIBLE);

    hr = lpDDSurf->GetAttachedSurface(&ddsd.ddsCaps, &m_lpBackBuffer);


    m_lpBackBuffer->GetDDInterface((LPVOID *)&m_lpDDObj);

    //
    // get the h/w caps for this device
    //
    INITDDSTRUCT(m_ddHWCaps);
    m_lpDDObj->GetCaps(&m_ddHWCaps, NULL);

    //
    // Create the device. The device is created off of our back buffer, which
    // becomes the render target for the newly created device. Note that the
    // z-buffer must be created BEFORE the device
    //
    m_pD3DHelper = new CD3DHelper(m_lpBackBuffer, &hr);
    if(m_pD3DHelper == NULL || hr != DD_OK)
    {
        if(m_pD3DHelper == NULL)
        {
            hr = E_OUTOFMEMORY;
        }
        delete m_pD3DHelper;
    }

    SetRect(&m_rcDst, 0, 0, 640, 480);

#ifdef SPARKLE
    m_pSparkle = new CSparkle(m_lpDDObj);
    if (m_pSparkle)
        m_pSparkle->InitializeSparkle();
#endif

    return hr;
}

bool SetupDDraw()
{
    logOutput << CurrentTimeString() << "called SetupDDraw()" << endl;

    if (!g_ddInterface)
    {
        logOutput << CurrentTimeString() << "SetupDDraw: DirectDraw interface not set, returning" << endl;
        return false;
    }

    bool bSuccess = true;

    bKillThread = false;

    if (hCopyThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)CopyDDrawTextureThread, NULL, 0, NULL))
    {
        if (!(hCopyEvent = CreateEvent(NULL, FALSE, FALSE, NULL)))
        {
            logOutput << CurrentTimeString() << "SetupDDraw: CreateEvent failed, GetLastError = " << GetLastError() << endl;
            bSuccess = false;
        }
    }
    else
    {
        logOutput << CurrentTimeString() << "SetupDDraw: CreateThread failed, GetLastError = " << GetLastError() << endl;
        bSuccess = false;
    }

    if (bSuccess)
    {
        if (!ddUnlockFctMutex)
        {
            ddUnlockFctMutex = CreateMutex(NULL, FALSE, mutexName);
            if (!ddUnlockFctMutex)
            {
                RUNEVERYRESET logOutput << CurrentTimeString() << "SetupDDraw: CreateMutex failed, GetLastError = " << GetLastError() << endl;
                bSuccess = false;
            }
        }
    }

    if (bSuccess && !g_frontSurface)
    {
        RUNEVERYRESET logOutput << "SetupDDraw: frontSurface and surface descriptor not set, returning" << endl;
        CleanUpDDraw();
        return false;
    }
    else if (bSuccess)
    {
        LPDIRECTDRAWPALETTE palette = NULL;
        HRESULT err;
        if (SUCCEEDED(err = g_frontSurface->GetPalette(&palette)))
        {
            if (palette)
                SetupPalette(palette);
        }
        else if (err == DDERR_NOPALETTEATTACHED)
        {
            //logOutput << CurrentTimeString() << "No palette attached to primary surface" << endl;
        }
        else
        {
            logOutput << CurrentTimeString() << "Error retrieving palette" << endl;
            printDDrawError(err, "getFrontSurface");
        }
    }

    if (bSuccess && !g_surfaceDesc)
    {
        logOutput << CurrentTimeString() << "SetupDDraw: no surface descriptor found, creating a new one (not an error)" << endl;

        g_surfaceDesc = new DDSURFACEDESC2;
        g_surfaceDesc->dwSize = sizeof(DDSURFACEDESC);

        HRESULT hr;
        if (FAILED(hr = ((LPDIRECTDRAWSURFACE)g_frontSurface)->GetSurfaceDesc((LPDDSURFACEDESC)g_surfaceDesc)))
        {
            g_surfaceDesc->dwSize = sizeof(DDSURFACEDESC2);
            if (FAILED(g_frontSurface->GetSurfaceDesc(g_surfaceDesc)))
            {
                logOutput << CurrentTimeString() << "SetupDDraw: error getting surface descriptor" << endl;
                printDDrawError(hr, "SetupDDraw");
                bSuccess = false;
            }
        }
    }

    if (bSuccess && g_surfaceDesc)
    {
        const DDPIXELFORMAT& pf = g_surfaceDesc->ddpfPixelFormat;
        if (pf.dwFlags & DDPF_RGB)
        {
            if (pf.dwRGBBitCount == 16)
            {
                logOutput << CurrentTimeString() << "SetupDDraw: found 16bit format (using R5G6B5 conversion)" << endl;
                g_bConvert16to32 = true;
            }
            else if (pf.dwRGBBitCount == 32)
            {
                logOutput << CurrentTimeString() << "SetupDDraw: found 32bit format (using plain copy)" << endl;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
			ddsd.ddpfPixelFormat.dwBBitMask = 0x0000FF;
			break;
	}
	
	// Create the back surface.
	rval = lpDD->CreateSurface(&ddsd, &lpDDS_Back, NULL);
	if (FAILED(rval))
	{
		// Failed to create the back surface.
		// If we attempted to create it in video memory, try system memory instead.
		if (ddsd.ddsCaps.dwCaps & DDSCAPS_VIDEOMEMORY)
		{
			LOG_MSG(video, LOG_MSG_LEVEL_ERROR,
				"lpDD->CreateSurface(&lpDDS_Back, DDSCAPS_VIDEOMEMORY) failed: 0x%08X", rval);
			LOG_MSG(video, LOG_MSG_LEVEL_ERROR,
				"Attempting to use DDSCAPS_SYSTEMMEMORY instead.");
			ddsd.ddsCaps.dwCaps &= ~DDSCAPS_VIDEOMEMORY;
			ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
			rval = lpDD->CreateSurface(&ddsd, &lpDDS_Back, NULL);
			if (FAILED(rval))
			{
				// Failed to create the back surface in system memory.
				vdraw_ddraw_free_all(false);
				LOG_MSG(video, LOG_MSG_LEVEL_ERROR,
					"lpDD->CreateSurface(&lpDDS_Back, DDSCAPS_SYSTEMMEMORY) failed: 0x%08X", rval);
				return -10;
			}
		}
		else
		{
			vdraw_ddraw_free_all(false);
			LOG_MSG(video, LOG_MSG_LEVEL_ERROR,
				"lpDD->CreateSurface(&lpDDS_Back, DDSCAPS_SYSTEMMEMORY) failed: 0x%08X", rval);
			return -11;
		}
	}
	
	// TODO: Check if this is right.
	// I think this might be causing the frame counter flicker in full screen mode.
	//if (!vdraw_get_fullscreen() || (rendMode >= 1 && (/*FS_No_Res_Change ||*/ Res_X != 640 || Res_Y != 480)))
	if (!vdraw_get_fullscreen() || !vdraw_ddraw_is_hw_render())
		lpDDS_Blit = lpDDS_Back;
	
	if (vdraw_ddraw_is_hw_render())
	{
		// Normal rendering mode uses MD_Screen directly.
		memset(&ddsd, 0, sizeof(ddsd));
		ddsd.dwSize = sizeof(ddsd);
		
		// TODO: This causes issues if the selected color depth isn't the
		// same as the desktop color depth. This only affects windowed mode,
		// since in fullscreen, the desktop color depth is changed.
		rval = lpDDS_Back->GetSurfaceDesc(&ddsd);
		if (FAILED(rval))
		{
			vdraw_ddraw_free_all(false);
			LOG_MSG(video, LOG_MSG_LEVEL_ERROR,
				"lpDDS_Back->GetSurfaceDesc() failed: 0x%08X", rval);
			return -12;
		}
		
		ddsd.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_PITCH | DDSD_LPSURFACE | DDSD_PIXELFORMAT;
		ddsd.dwWidth = 336;
		ddsd.dwHeight = 240;
		
		if (ddsd.ddpfPixelFormat.dwRGBBitCount > 16)
		{
			// 32-bit color.
			ddsd.lpSurface = MD_Screen.u32;
			ddsd.lPitch = 336 * 4;
		}
		else
		{
			// 15-bit or 16-bit color.
			ddsd.lpSurface = MD_Screen.u16;
			ddsd.lPitch = 336 * 2;
		}
		
		rval = lpDDS_Back->SetSurfaceDesc(&ddsd, 0);
		if (FAILED(rval))
		{
			vdraw_ddraw_free_all(false);
			LOG_MSG(video, LOG_MSG_LEVEL_ERROR,
				"lpDDS_Back->SetSurfaceDesc() failed: 0x%08X", rval);
			return -13;
		}
	}
	
	// Initialize the destination rectangle.
	vdraw_ddraw_adjust_RectDest();
	
	// Reset the render mode.
	vdraw_reset_renderer(false);
	
	// Synchronize menus.
	Sync_Gens_Window();
	
	// vdraw_ddraw initialized.
	return 0;
}