dxut.cpp

DX例子中等难度的。全是新例子。VC2003

    if( GetDXUTState().GetOverrideForcePureHWVP() )
    {
        deviceSettings.BehaviorFlags = D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_PUREDEVICE;
        matchOptions.eVertexProcessing = DXUTMT_PRESERVE_INPUT;
    }
    else if( GetDXUTState().GetOverrideForceHWVP() )
    {
        deviceSettings.BehaviorFlags = D3DCREATE_HARDWARE_VERTEXPROCESSING;
        matchOptions.eVertexProcessing = DXUTMT_PRESERVE_INPUT;
    }
    else if( GetDXUTState().GetOverrideForceSWVP() )
    {
        deviceSettings.BehaviorFlags = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
        matchOptions.eVertexProcessing = DXUTMT_PRESERVE_INPUT;
    }

    if( GetDXUTState().GetOverrideForceVsync() == 0 )
    {
        deviceSettings.pp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
        matchOptions.ePresentInterval = DXUTMT_PRESERVE_INPUT;
    }
    else if( GetDXUTState().GetOverrideForceVsync() == 1 )
    {
        deviceSettings.pp.PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT;
        matchOptions.ePresentInterval = DXUTMT_PRESERVE_INPUT;
    }

    hr = DXUTFindValidDeviceSettings( &deviceSettings, &deviceSettings, &matchOptions );
    if( FAILED(hr) ) // the call will fail if no valid devices were found
    {
        DXUTDisplayErrorMessage( hr );
        return DXUT_ERR( L"DXUTFindValidDeviceSettings", hr );
    }

    // Change to a Direct3D device created from the new device settings.  
    // If there is an existing device, then either reset or recreated the scene
    hr = DXUTChangeDevice( &deviceSettings, NULL, false, true );
    if( FAILED(hr) )
        return hr;

    return S_OK;
}


//--------------------------------------------------------------------------------------
// Passes a previously created Direct3D device for use by the framework.  
// If DXUTCreateWindow() has not already been called, it will call it with the 
// default parameters.  Instead of calling this, you can call DXUTCreateDevice() or 
// DXUTCreateDeviceFromSettings() 
//--------------------------------------------------------------------------------------
HRESULT DXUTSetDevice( IDirect3DDevice9* pd3dDevice )
{
    HRESULT hr;

    if( pd3dDevice == NULL )
        return DXUT_ERR_MSGBOX( L"DXUTSetDevice", E_INVALIDARG );

    // Not allowed to call this from inside the device callbacks
    if( GetDXUTState().GetInsideDeviceCallback() )
        return DXUT_ERR_MSGBOX( L"DXUTCreateWindow", E_FAIL );

    GetDXUTState().SetDeviceCreateCalled( true );

    // If DXUTCreateWindow() or DXUTSetWindow() has not already been called, 
    // then call DXUTCreateWindow() with the default parameters.         
    if( !GetDXUTState().GetWindowCreated() ) 
    {
        // If DXUTCreateWindow() or DXUTSetWindow() was already called and failed, then fail.
        // DXUTCreateWindow() or DXUTSetWindow() must first succeed for this function to succeed
        if( GetDXUTState().GetWindowCreateCalled() )
            return E_FAIL; 

        // If DXUTCreateWindow() or DXUTSetWindow() hasn't been called, then 
        // automatically call DXUTCreateWindow() with default params
        hr = DXUTCreateWindow();
        if( FAILED(hr) )
            return hr;
    }

    DXUTDeviceSettings* pDeviceSettings = new DXUTDeviceSettings;
    if( pDeviceSettings == NULL )
        return E_OUTOFMEMORY;
    ZeroMemory( pDeviceSettings, sizeof(DXUTDeviceSettings) );

    // Get the present params from the swap chain
    IDirect3DSurface9* pBackBuffer = NULL;
    hr = pd3dDevice->GetBackBuffer( 0, 0, D3DBACKBUFFER_TYPE_MONO, &pBackBuffer );
    if( SUCCEEDED(hr) )
    {
        IDirect3DSwapChain9* pSwapChain = NULL;
        hr = pBackBuffer->GetContainer( IID_IDirect3DSwapChain9, (void**) &pSwapChain );
        if( SUCCEEDED(hr) )
        {
            pSwapChain->GetPresentParameters( &pDeviceSettings->pp );
            SAFE_RELEASE( pSwapChain );
        }

        SAFE_RELEASE( pBackBuffer );
    }

    D3DDEVICE_CREATION_PARAMETERS d3dCreationParams;
    pd3dDevice->GetCreationParameters( &d3dCreationParams );

    // Fill out the rest of the device settings struct
    pDeviceSettings->AdapterOrdinal = d3dCreationParams.AdapterOrdinal;
    pDeviceSettings->DeviceType     = d3dCreationParams.DeviceType;
    DXUTFindAdapterFormat( pDeviceSettings->AdapterOrdinal, pDeviceSettings->DeviceType, 
                           pDeviceSettings->pp.BackBufferFormat, pDeviceSettings->pp.Windowed, 
                           &pDeviceSettings->AdapterFormat );
    pDeviceSettings->BehaviorFlags  = d3dCreationParams.BehaviorFlags;

    // Change to the Direct3D device passed in
    hr = DXUTChangeDevice( pDeviceSettings, pd3dDevice, false, false );

    delete pDeviceSettings;

    if( FAILED(hr) ) 
        return hr;

    return S_OK;
}


//--------------------------------------------------------------------------------------
// Tells the framework to change to a device created from the passed in device settings
// If DXUTCreateWindow() has not already been called, it will call it with the 
// default parameters.  Instead of calling this, you can call DXUTCreateDevice() 
// or DXUTSetDevice() 
//--------------------------------------------------------------------------------------
HRESULT DXUTCreateDeviceFromSettings( DXUTDeviceSettings* pDeviceSettings, bool bPreserveInput, bool bClipWindowToSingleAdapter )
{
    HRESULT hr;

    GetDXUTState().SetDeviceCreateCalled( true );

    // If DXUTCreateWindow() or DXUTSetWindow() has not already been called, 
    // then call DXUTCreateWindow() with the default parameters.         
    if( !GetDXUTState().GetWindowCreated() ) 
    {
        // If DXUTCreateWindow() or DXUTSetWindow() was already called and failed, then fail.
        // DXUTCreateWindow() or DXUTSetWindow() must first succeed for this function to succeed
        if( GetDXUTState().GetWindowCreateCalled() )
            return E_FAIL; 

        // If DXUTCreateWindow() or DXUTSetWindow() hasn't been called, then 
        // automatically call DXUTCreateWindow() with default params
        hr = DXUTCreateWindow();
        if( FAILED(hr) )
            return hr;
    }

    if( !bPreserveInput )
    {
        // If not preserving the input, then find the closest valid to it
        DXUTMatchOptions matchOptions;
        matchOptions.eAdapterOrdinal     = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eDeviceType         = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eWindowed           = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eAdapterFormat      = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eVertexProcessing   = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eResolution         = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eBackBufferFormat   = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eBackBufferCount    = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eMultiSample        = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eSwapEffect         = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eDepthFormat        = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eStencilFormat      = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.ePresentFlags       = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.eRefreshRate        = DXUTMT_CLOSEST_TO_INPUT;
        matchOptions.ePresentInterval    = DXUTMT_CLOSEST_TO_INPUT;

        hr = DXUTFindValidDeviceSettings( pDeviceSettings, pDeviceSettings, &matchOptions );
        if( FAILED(hr) ) // the call will fail if no valid devices were found
        {
            DXUTDisplayErrorMessage( hr );
            return DXUT_ERR( L"DXUTFindValidDeviceSettings", hr );
        }
    }

    // Change to a Direct3D device created from the new device settings.  
    // If there is an existing device, then either reset or recreate the scene
    hr = DXUTChangeDevice( pDeviceSettings, NULL, false, bClipWindowToSingleAdapter );
    if( FAILED(hr) )
        return hr;

    return S_OK;
}


//--------------------------------------------------------------------------------------
// Toggle between full screen and windowed
//--------------------------------------------------------------------------------------
HRESULT DXUTToggleFullScreen()
{
    HRESULT hr;

    // Get the current device settings and flip the windowed state then
    // find the closest valid device settings with this change
    DXUTDeviceSettings deviceSettings = DXUTGetDeviceSettings();
    deviceSettings.pp.Windowed = !deviceSettings.pp.Windowed;

    DXUTMatchOptions matchOptions;
    matchOptions.eAdapterOrdinal     = DXUTMT_PRESERVE_INPUT;
    matchOptions.eDeviceType         = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eWindowed           = DXUTMT_PRESERVE_INPUT;
    matchOptions.eAdapterFormat      = DXUTMT_IGNORE_INPUT;
    matchOptions.eVertexProcessing   = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eBackBufferFormat   = DXUTMT_IGNORE_INPUT;
    matchOptions.eBackBufferCount    = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eMultiSample        = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eSwapEffect         = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eDepthFormat        = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eStencilFormat      = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.ePresentFlags       = DXUTMT_CLOSEST_TO_INPUT;
    matchOptions.eRefreshRate        = DXUTMT_IGNORE_INPUT;
    matchOptions.ePresentInterval    = DXUTMT_CLOSEST_TO_INPUT;

    // Go back to previous state

    UINT nWidth  = ( deviceSettings.pp.Windowed ) ? GetDXUTState().GetWindowBackBufferWidthAtModeChange() : GetDXUTState().GetFullScreenBackBufferWidthAtModeChange();
    UINT nHeight = ( deviceSettings.pp.Windowed ) ? GetDXUTState().GetWindowBackBufferHeightAtModeChange() : GetDXUTState().GetFullScreenBackBufferHeightAtModeChange();
    if( nWidth > 0 && nHeight > 0 )
    {
        matchOptions.eResolution = DXUTMT_CLOSEST_TO_INPUT;
        deviceSettings.pp.BackBufferWidth = nWidth;
        deviceSettings.pp.BackBufferHeight = nHeight;
    }
    else
    {
        // No previous data, so just switch to defaults
        matchOptions.eResolution = DXUTMT_IGNORE_INPUT;
    }
    
    hr = DXUTFindValidDeviceSettings( &deviceSettings, &deviceSettings, &matchOptions );
    if( SUCCEEDED(hr) ) 
    {
        // Create a Direct3D device using the new device settings.  
        // If there is an existing device, then it will either reset or recreate the scene.
        hr = DXUTChangeDevice( &deviceSettings, NULL, false, false );

        // If hr == E_ABORT, this means the app rejected the device settings in the ModifySettingsCallback so nothing changed
        if( FAILED(hr) && (hr != E_ABORT) )
        {
            // Failed creating device, try to switch back.
            deviceSettings.pp.Windowed = !deviceSettings.pp.Windowed;
            UINT nWidth  = ( deviceSettings.pp.Windowed ) ? GetDXUTState().GetWindowBackBufferWidthAtModeChange() : GetDXUTState().GetFullScreenBackBufferWidthAtModeChange();
            UINT nHeight = ( deviceSettings.pp.Windowed ) ? GetDXUTState().GetWindowBackBufferHeightAtModeChange() : GetDXUTState().GetFullScreenBackBufferHeightAtModeChange();
            if( nWidth > 0 && nHeight > 0 )
            {
                matchOptions.eResolution = DXUTMT_CLOSEST_TO_INPUT;
                deviceSettings.pp.BackBufferWidth = nWidth;
                deviceSettings.pp.BackBufferHeight = nHeight;
            }
            else
            {
                matchOptions.e