dxutenum.cpp

声音和图片的加载功能,不过运行起来有点卡

                if( displayMode.Width < m_nMinWidth ||
                    displayMode.Height < m_nMinHeight || 
                    displayMode.Width > m_nMaxWidth ||
                    displayMode.Height > m_nMaxHeight || 
                    displayMode.RefreshRate < m_nRefreshMin ||
                    displayMode.RefreshRate > m_nRefreshMax )
                {
                    continue;
                }

                pAdapterInfo->displayModeList.Add( displayMode );

                if( !adapterFormatList.Contains(displayMode.Format) )
                    adapterFormatList.Add( displayMode.Format );
            }

        }

        D3DDISPLAYMODE displayMode;
        pD3D->GetAdapterDisplayMode( adapterOrdinal, &displayMode );
        if( !adapterFormatList.Contains(displayMode.Format) )
            adapterFormatList.Add( displayMode.Format );

        // Sort displaymode list
        qsort( pAdapterInfo->displayModeList.GetData(), 
               pAdapterInfo->displayModeList.GetSize(), sizeof( D3DDISPLAYMODE ),
               SortModesCallback );

        // Get info for each device on this adapter
        if( FAILED( EnumerateDevices( pAdapterInfo, &adapterFormatList ) ) )
        {
            delete pAdapterInfo;
            continue;
        }

        // If at least one device on this adapter is available and compatible
        // with the app, add the adapterInfo to the list
        if( pAdapterInfo->deviceInfoList.GetSize() > 0 )
        {
            hr = m_AdapterInfoList.Add( pAdapterInfo );
            if( FAILED(hr) )
                return hr;
        } else
            delete pAdapterInfo;
    }

    //
    // Check for 2 or more adapters with the same name. Append the name
    // with some instance number if that's the case to help distinguish
    // them.
    //
    bool bUniqueDesc = true;
    CD3D9EnumAdapterInfo* pAdapterInfo;
    for( int i=0; i<m_AdapterInfoList.GetSize(); i++ )
    {
        CD3D9EnumAdapterInfo* pAdapterInfo1 = m_AdapterInfoList.GetAt(i);

        for( int j=i+1; j<m_AdapterInfoList.GetSize(); j++ )
        {
            CD3D9EnumAdapterInfo* pAdapterInfo2 = m_AdapterInfoList.GetAt(j);
            if( _stricmp( pAdapterInfo1->AdapterIdentifier.Description, 
                          pAdapterInfo2->AdapterIdentifier.Description ) == 0 )
            {
                bUniqueDesc = false;
                break;
            }
        }

        if( !bUniqueDesc )
            break;
    }

    for( int i=0; i<m_AdapterInfoList.GetSize(); i++ )
    {
        pAdapterInfo = m_AdapterInfoList.GetAt(i);

        MultiByteToWideChar( CP_ACP, 0, 
                             pAdapterInfo->AdapterIdentifier.Description, -1, 
                             pAdapterInfo->szUniqueDescription, 100 );
        pAdapterInfo->szUniqueDescription[100] = 0;

        if( !bUniqueDesc )
        {
            WCHAR sz[100];
            StringCchPrintf( sz, 100, L" (#%d)", pAdapterInfo->AdapterOrdinal );
            StringCchCat( pAdapterInfo->szUniqueDescription, 256, sz );

        }
    }

    return S_OK;
}



//--------------------------------------------------------------------------------------
// Enumerates D3D devices for a particular adapter.
//--------------------------------------------------------------------------------------
HRESULT CD3D9Enumeration::EnumerateDevices( CD3D9EnumAdapterInfo* pAdapterInfo, CGrowableArray<D3DFORMAT>* pAdapterFormatList )
{
    HRESULT hr;

    const D3DDEVTYPE devTypeArray[] = 
    { 
        D3DDEVTYPE_HAL, 
        D3DDEVTYPE_SW, 
        D3DDEVTYPE_REF 
    };
    const UINT devTypeArrayCount = sizeof(devTypeArray) / sizeof(devTypeArray[0]);

    // Enumerate each Direct3D device type
    for( UINT iDeviceType = 0; iDeviceType < devTypeArrayCount; iDeviceType++ )
    {
        CD3D9EnumDeviceInfo* pDeviceInfo = new CD3D9EnumDeviceInfo;
        if( pDeviceInfo == NULL )
            return E_OUTOFMEMORY;

        // Fill struct w/ AdapterOrdinal and D3DDEVTYPE
        pDeviceInfo->AdapterOrdinal = pAdapterInfo->AdapterOrdinal;
        pDeviceInfo->DeviceType = devTypeArray[iDeviceType];

        // Store device caps
        if( FAILED( hr = m_pD3D->GetDeviceCaps( pAdapterInfo->AdapterOrdinal, pDeviceInfo->DeviceType, 
                                                &pDeviceInfo->Caps ) ) )
        {
            delete pDeviceInfo;
            continue;
        }

        if( pDeviceInfo->DeviceType != D3DDEVTYPE_HAL )
        {
            // Create a temp device to verify that it is really possible to create a REF device 
            // [the developer DirectX redist has to be installed]
            D3DDISPLAYMODE Mode;
            m_pD3D->GetAdapterDisplayMode(0, &Mode);
            D3DPRESENT_PARAMETERS pp;
            ZeroMemory( &pp, sizeof(D3DPRESENT_PARAMETERS) );
            pp.BackBufferWidth  = 1;
            pp.BackBufferHeight = 1;
            pp.BackBufferFormat = Mode.Format;
            pp.BackBufferCount  = 1;
            pp.SwapEffect       = D3DSWAPEFFECT_COPY;
            pp.Windowed         = TRUE;
            pp.hDeviceWindow    = DXUTGetHWNDFocus();
            IDirect3DDevice9 *pDevice = NULL;
            if( FAILED( hr = m_pD3D->CreateDevice( pAdapterInfo->AdapterOrdinal, pDeviceInfo->DeviceType, DXUTGetHWNDFocus(),
                                                   D3DCREATE_HARDWARE_VERTEXPROCESSING, &pp, &pDevice ) ) )
            {
                delete pDeviceInfo;
                continue;
            }
            SAFE_RELEASE( pDevice );
        }

        // Get info for each devicecombo on this device
        if( FAILED( hr = EnumerateDeviceCombos( pAdapterInfo, pDeviceInfo, pAdapterFormatList ) ) )
        {
            delete pDeviceInfo;
            continue;
        }

        // If at least one devicecombo for this device is found, 
        // add the deviceInfo to the list
        if (pDeviceInfo->deviceSettingsComboList.GetSize() > 0 )
            pAdapterInfo->deviceInfoList.Add( pDeviceInfo );
        else
            delete pDeviceInfo;
    }

    return S_OK;
}



//--------------------------------------------------------------------------------------
// Enumerates DeviceCombos for a particular device.
//--------------------------------------------------------------------------------------
HRESULT CD3D9Enumeration::EnumerateDeviceCombos( CD3D9EnumAdapterInfo* pAdapterInfo, CD3D9EnumDeviceInfo* pDeviceInfo, CGrowableArray<D3DFORMAT>* pAdapterFormatList )
{
    const D3DFORMAT backBufferFormatArray[] = 
    {   
        D3DFMT_A8R8G8B8, 
        D3DFMT_X8R8G8B8, 
        D3DFMT_A2R10G10B10, 
        D3DFMT_R5G6B5, 
        D3DFMT_A1R5G5B5, 
        D3DFMT_X1R5G5B5 
    };
    const UINT backBufferFormatArrayCount = sizeof(backBufferFormatArray) / sizeof(backBufferFormatArray[0]);

    // See which adapter formats are supported by this device
    for( int iFormat=0; iFormat<pAdapterFormatList->GetSize(); iFormat++ )
    {
        D3DFORMAT adapterFormat = pAdapterFormatList->GetAt(iFormat);

        for( UINT iBackBufferFormat = 0; iBackBufferFormat < backBufferFormatArrayCount; iBackBufferFormat++ )
        {
            D3DFORMAT backBufferFormat = backBufferFormatArray[iBackBufferFormat];

            for( int nWindowed = 0; nWindowed < 2; nWindowed++)
            {
                if( !nWindowed && pAdapterInfo->displayModeList.GetSize() == 0 )
                    continue;

                if (FAILED( m_pD3D->CheckDeviceType( pAdapterInfo->AdapterOrdinal, pDeviceInfo->DeviceType, 
                                                     adapterFormat, backBufferFormat, nWindowed )))
                {
                    continue;
                }

                if( m_bRequirePostPixelShaderBlending )
                {
                    // If the backbuffer format doesn't support D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING
                    // then alpha test, pixel fog, render-target blending, color write enable, and dithering. 
                    // are not supported.
                    if( FAILED( m_pD3D->CheckDeviceFormat( pAdapterInfo->AdapterOrdinal, pDeviceInfo->DeviceType,
                                                        adapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, 
                                                        D3DRTYPE_TEXTURE, backBufferFormat ) ) )
                    {
                        continue;
                    }
                }

                // If an application callback function has been provided, make sure this device
                // is acceptable to the app.
                if( m_IsD3D9DeviceAcceptableFunc != NULL )
                {
                    if( !m_IsD3D9DeviceAcceptableFunc( &pDeviceInfo->Caps, adapterFormat, backBufferFormat, FALSE != nWindowed, m_pIsD3D9DeviceAcceptableFuncUserContext ) )
                        continue;
                }
                
                // At this point, we have an adapter/device/adapterformat/backbufferformat/iswindowed
                // DeviceCombo that is supported by the system and acceptable to the app. We still 
                // need to find one or more suitable depth/stencil buffer format,
                // multisample type, and present interval.
                CD3D9EnumDeviceSettingsCombo* pDeviceCombo = new CD3D9EnumDeviceSettingsCombo;
                if( pDeviceCombo == NULL )
                    return E_OUTOFMEMORY;

                pDeviceCombo->AdapterOrdinal = pAdapterInfo->AdapterOrdinal;
                pDeviceCombo->DeviceType = pDeviceInfo->DeviceType;
                pDeviceCombo->AdapterFormat = adapterFormat;
                pDeviceCombo->BackBufferFormat = backBufferFormat;
                pDeviceCombo->Windowed = (nWindowed != 0);
               
                BuildDepthStencilFormatList( pDeviceCombo );
                BuildMultiSampleTypeList( pDeviceCombo );
                if (pDeviceCombo->multiSampleTypeList.GetSize() == 0)
                {
                    delete pDeviceCombo;
                    continue;
                }
                BuildDSMSConflictList( pDeviceCombo );
                BuildPresentIntervalList(pDeviceInfo, pDeviceCombo );
                pDeviceCombo->pAdapterInfo = pAdapterInfo;
                pDeviceCombo->pDeviceInfo = pDeviceInfo;

                if( FAILED( pDeviceInfo->deviceSettingsComboList.Add( pDeviceCombo ) ) )
                    delete pDeviceCombo;
            }
        }
    }

    return S_OK;
}



//--------------------------------------------------------------------------------------
// Adds all depth/stencil formats that are compatible with the device 
//       and app to the given D3DDeviceCombo.
//--------------------------------------------------------------------------------------
void CD3D9Enumeration::BuildDepthStencilFormatList( CD3D9EnumDeviceSettingsCombo* pDeviceCombo )
{
    D3DFORMAT depthStencilFmt;
    for( int idsf = 0; idsf < m_DepthStencilPossibleList.GetSize(); idsf++ )
    {
        depthStencilFmt = m_DepthStencilPossibleList.GetAt(idsf);
        if (SUCCEEDED(m_pD3D->CheckDeviceFormat(pDeviceCombo->AdapterOrdinal, 
                pDeviceCombo->DeviceType, pDeviceCombo->AdapterFormat, 
                D3DUSAGE_DEPTHSTENCIL, D3DRTYPE_SURFACE, depthStencilFmt)))
        {
            if (SUCCEEDED(m_pD3D->CheckDepthStencilMatch(pDeviceCombo->AdapterOrdinal, 
                    pDeviceCombo->DeviceType, pDeviceCombo->AdapterFormat, 
                    pDeviceCombo->BackBufferFormat, depthStencilFmt)))
            {
                pDeviceCombo->depthStencilFormatList.Add( depthStencilFmt );
            }
        }
    }
}




//--------------------------------------------------------------------------------------
// Adds all multisample types that are compatible with the device and app to
//       the given D3DDeviceCombo.
//--------------------------------------------------------------------------------------
void CD3D9Enumeration::BuildMultiSampleTypeList( CD3D9EnumDeviceSettingsCombo* pDeviceCombo )
{
    D3DMULTISAMPLE_TYPE msType;
    DWORD msQuality;
    for( int imst = 0; imst < m_MultiSampleTypeList.GetSize(); imst++ )
    {
        msType = m_MultiSampleTypeList.GetAt(imst);
        if( SUCCEEDED( m_pD3D->CheckDeviceMultiSampleType( pDeviceCombo->AdapterOrdinal, 
                pDeviceCombo->DeviceType, pDeviceCombo->BackBufferFormat, 
                pDeviceCombo->Windowed, msType, &msQuality ) ) )
        {
            pDeviceCombo->multiSampleTypeList.Add( msType );
            if( msQuality > m_nMultisampleQualityMax + 1 )
                msQuality = m_nMultisampleQualityMax + 1;
            pDeviceCombo->multiSampleQualityList.Add( msQuality );
        }
    }
}




//--------------------------------------------------------------------------------------
// Find any conflicts between the available depth/stencil formats and
//       multisample types.