d3dapp.cpp

游戏编程精华02－含有几十个游戏编程例子

                    return TRUE;
            }
            break;

        case WM_SYSCOMMAND:
            // Prevent moving/sizing and power loss in fullscreen mode
            switch( wParam )
            {
                case SC_MOVE:
                case SC_SIZE:
                case SC_MAXIMIZE:
                case SC_KEYMENU:
                case SC_MONITORPOWER:
                    if( FALSE == m_bWindowed )
                        return 1;
                    break;
            }
            break;

        case WM_COMMAND:
            switch( LOWORD(wParam) )
            {
                case IDM_TOGGLESTART:
                    // Toggle frame movement
                    m_bFrameMoving = !m_bFrameMoving;
                    DXUtil_Timer( m_bFrameMoving ? TIMER_START : TIMER_STOP );
                    break;

                case IDM_SINGLESTEP:
                    // Single-step frame movement
                    if( FALSE == m_bFrameMoving )
                        DXUtil_Timer( TIMER_ADVANCE );
                    else
                        DXUtil_Timer( TIMER_STOP );
                    m_bFrameMoving = FALSE;
                    m_bSingleStep  = TRUE;
                    break;

                case IDM_CHANGEDEVICE:
                    // Prompt the user to select a new device or mode
                    if( m_bActive && m_bReady )
                    {
                        Pause(TRUE);

                        if( FAILED( hr = UserSelectNewDevice() ) )
                            return 0;

                        Pause(FALSE);
                    }
                    return 0;

                case IDM_TOGGLEFULLSCREEN:
                    // Toggle the fullscreen/window mode
                    if( m_bActive && m_bReady )
                    {
                        if( FAILED( ToggleFullscreen() ) )
                        {
                            DisplayErrorMsg( D3DAPPERR_RESIZEFAILED, MSGERR_APPMUSTEXIT );
                            return 0;
                        }
                    }
                    return 0;

                case IDM_EXIT:
                    // Recieved key/menu command to exit app
                    SendMessage( hWnd, WM_CLOSE, 0, 0 );
                    return 0;
            }
            break;

        case WM_CLOSE:
            Cleanup3DEnvironment();
            DestroyMenu( GetMenu(hWnd) );
            DestroyWindow( hWnd );
            PostQuitMessage(0);
            return 0;
    }

    return DefWindowProc( hWnd, uMsg, wParam, lParam );
}




//-----------------------------------------------------------------------------
// Name: Initialize3DEnvironment()
// Desc:
//-----------------------------------------------------------------------------
HRESULT CD3DApplication::Initialize3DEnvironment()
{
    HRESULT hr;

    D3DAdapterInfo* pAdapterInfo = &m_Adapters[m_dwAdapter];
    D3DDeviceInfo*  pDeviceInfo  = &pAdapterInfo->devices[pAdapterInfo->dwCurrentDevice];
    D3DModeInfo*    pModeInfo    = &pDeviceInfo->modes[pDeviceInfo->dwCurrentMode];

    // Prepare window for possible windowed/fullscreen change
    AdjustWindowForChange();

    // Set up the presentation parameters
    ZeroMemory( &m_d3dpp, sizeof(m_d3dpp) );
    m_d3dpp.Windowed               = pDeviceInfo->bWindowed;
    m_d3dpp.BackBufferCount        = 1;
    m_d3dpp.MultiSampleType        = pDeviceInfo->MultiSampleType;
    m_d3dpp.SwapEffect             = D3DSWAPEFFECT_DISCARD;
    m_d3dpp.EnableAutoDepthStencil = m_bUseDepthBuffer;
    m_d3dpp.AutoDepthStencilFormat = pModeInfo->DepthStencilFormat;
    m_d3dpp.hDeviceWindow          = m_hWnd;
    if( m_bWindowed )
    {
        m_d3dpp.BackBufferWidth  = m_rcWindowClient.right - m_rcWindowClient.left;
        m_d3dpp.BackBufferHeight = m_rcWindowClient.bottom - m_rcWindowClient.top;
        m_d3dpp.BackBufferFormat = pAdapterInfo->d3ddmDesktop.Format;
    }
    else
    {
        m_d3dpp.BackBufferWidth  = pModeInfo->Width;
        m_d3dpp.BackBufferHeight = pModeInfo->Height;
        m_d3dpp.BackBufferFormat = pModeInfo->Format;
    }

    // Create the device
    hr = m_pD3D->CreateDevice( m_dwAdapter, pDeviceInfo->DeviceType,
                               m_hWndFocus, pModeInfo->dwBehavior, &m_d3dpp,
                               &m_pd3dDevice );
    if( SUCCEEDED(hr) )
    {
        // When moving from fullscreen to windowed mode, it is important to
        // adjust the window size after recreating the device rather than
        // beforehand to ensure that you get the window size you want.  For
        // example, when switching from 640x480 fullscreen to windowed with
        // a 1000x600 window on a 1024x768 desktop, it is impossible to set
        // the window size to 1000x600 until after the display mode has
        // changed to 1024x768, because windows cannot be larger than the
        // desktop.
        if( m_bWindowed )
        {
            SetWindowPos( m_hWnd, HWND_NOTOPMOST,
                          m_rcWindowBounds.left, m_rcWindowBounds.top,
                          ( m_rcWindowBounds.right - m_rcWindowBounds.left ),
                          ( m_rcWindowBounds.bottom - m_rcWindowBounds.top ),
                          SWP_SHOWWINDOW );
        }

        // Store device Caps
        m_pd3dDevice->GetDeviceCaps( &m_d3dCaps );
        m_dwCreateFlags = pModeInfo->dwBehavior;

        // Store device description
        if( pDeviceInfo->DeviceType == D3DDEVTYPE_REF )
            lstrcpy( m_strDeviceStats, TEXT("REF") );
        else if( pDeviceInfo->DeviceType == D3DDEVTYPE_HAL )
            lstrcpy( m_strDeviceStats, TEXT("HAL") );
        else if( pDeviceInfo->DeviceType == D3DDEVTYPE_SW )
            lstrcpy( m_strDeviceStats, TEXT("SW") );

        if( pModeInfo->dwBehavior & D3DCREATE_HARDWARE_VERTEXPROCESSING &&
            pModeInfo->dwBehavior & D3DCREATE_PUREDEVICE )
        {
            if( pDeviceInfo->DeviceType == D3DDEVTYPE_HAL )
                lstrcat( m_strDeviceStats, TEXT(" (pure hw vp)") );
            else
                lstrcat( m_strDeviceStats, TEXT(" (simulated pure hw vp)") );
        }
        else if( pModeInfo->dwBehavior & D3DCREATE_HARDWARE_VERTEXPROCESSING )
        {
            if( pDeviceInfo->DeviceType == D3DDEVTYPE_HAL )
                lstrcat( m_strDeviceStats, TEXT(" (hw vp)") );
            else
                lstrcat( m_strDeviceStats, TEXT(" (simulated hw vp)") );
        }
        else if( pModeInfo->dwBehavior & D3DCREATE_MIXED_VERTEXPROCESSING )
        {
            if( pDeviceInfo->DeviceType == D3DDEVTYPE_HAL )
                lstrcat( m_strDeviceStats, TEXT(" (mixed vp)") );
            else
                lstrcat( m_strDeviceStats, TEXT(" (simulated mixed vp)") );
        }
        else if( pModeInfo->dwBehavior & D3DCREATE_SOFTWARE_VERTEXPROCESSING )
        {
            lstrcat( m_strDeviceStats, TEXT(" (sw vp)") );
        }

        if( pDeviceInfo->DeviceType == D3DDEVTYPE_HAL )
        {
            lstrcat( m_strDeviceStats, TEXT(": ") );
            lstrcat( m_strDeviceStats, pAdapterInfo->d3dAdapterIdentifier.Description );
        }

        // Store render target surface desc
        LPDIRECT3DSURFACE8 pBackBuffer;
        m_pd3dDevice->GetBackBuffer( 0, D3DBACKBUFFER_TYPE_MONO, &pBackBuffer );
        pBackBuffer->GetDesc( &m_d3dsdBackBuffer );
        pBackBuffer->Release();

        // Set up the fullscreen cursor
        if( m_bShowCursorWhenFullscreen && !m_bWindowed )
        {
            HCURSOR hCursor;
#ifdef _WIN64
            hCursor = (HCURSOR)GetClassLongPtr( m_hWnd, GCLP_HCURSOR );
#else
            hCursor = (HCURSOR)GetClassLong( m_hWnd, GCL_HCURSOR );
#endif
            D3DUtil_SetDeviceCursor( m_pd3dDevice, hCursor );
            m_pd3dDevice->ShowCursor( TRUE );
        }

        // Initialize the app's device-dependent objects
        hr = InitDeviceObjects();
        if( SUCCEEDED(hr) )
        {
            hr = RestoreDeviceObjects();
            if( SUCCEEDED(hr) )
            {
                m_bActive = TRUE;
                return S_OK;
            }
        }

        // Cleanup before we try again
        InvalidateDeviceObjects();
        DeleteDeviceObjects();
        SAFE_RELEASE( m_pd3dDevice );
    }

    // If that failed, fall back to the reference rasterizer
    if( pDeviceInfo->DeviceType == D3DDEVTYPE_HAL )
    {
        // Let the user know we are switching from HAL to the reference rasterizer
        DisplayErrorMsg( hr, MSGWARN_SWITCHEDTOREF );

        // Select the default adapter
        m_dwAdapter = 0L;
        pAdapterInfo = &m_Adapters[m_dwAdapter];

        // Look for a software device
        for( UINT i=0L; i<pAdapterInfo->dwNumDevices; i++ )
        {
            if( pAdapterInfo->devices[i].DeviceType == D3DDEVTYPE_REF )
            {
                pAdapterInfo->dwCurrentDevice = i;
                pDeviceInfo = &pAdapterInfo->devices[i];
                m_bWindowed = pDeviceInfo->bWindowed;
                break;
            }
        }

        // Try again, this time with the reference rasterizer
        if( pAdapterInfo->devices[pAdapterInfo->dwCurrentDevice].DeviceType ==
            D3DDEVTYPE_REF )
        {
            hr = Initialize3DEnvironment();
        }
    }

    return hr;
}




//-----------------------------------------------------------------------------
// Name:
// Desc:
//-----------------------------------------------------------------------------
HRESULT CD3DApplication::Resize3DEnvironment()
{
    HRESULT hr;

    // Release all vidmem objects
    if( FAILED( hr = InvalidateDeviceObjects() ) )
        return hr;

    // Reset the device
    if( FAILED( hr = m_pd3dDevice->Reset( &m_d3dpp ) ) )
        return hr;

    // Store render target surface desc
    LPDIRECT3DSURFACE8 pBackBuffer;
    m_pd3dDevice->GetBackBuffer( 0, D3DBACKBUFFER_TYPE_MONO, &pBackBuffer );
    pBackBuffer->GetDesc( &m_d3dsdBackBuffer );
    pBackBuffer->Release();

    // Set up the fullscreen cursor
    if( m_bShowCursorWhenFullscreen && !m_bWindowed )
    {
        HCURSOR hCursor;
#ifdef _WIN64
        hCursor = (HCURSOR)GetClassLongPtr( m_hWnd, GCLP_HCURSOR );
#else
        hCursor = (HCURSOR)GetClassLong( m_hWnd, GCL_HCURSOR );
#endif
        D3DUtil_SetDeviceCursor( m_pd3dDevice, hCursor );
        m_pd3dDevice->ShowCursor( TRUE );
    }

    // Initialize the app's device-dependent objects
    hr = RestoreDeviceObjects();
    if( FAILED(hr) )
        return hr;

    // If the app is paused, trigger the rendering of the current frame
    if( FALSE == m_bFrameMoving )
    {
        m_bSingleStep = TRUE;
        DXUtil_Timer( TIMER_START );
        DXUtil_Timer( TIMER_STOP );
    }

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: ToggleFullScreen()
// Desc: Called when user toggles between fullscreen mode and windowed mode
//-----------------------------------------------------------------------------
HRESULT CD3DApplication::ToggleFullscreen()
{
    // Get access to current adapter, device, and mode
    D3DAdapterInfo* pAdapterInfo = &m_Adapters[m_dwAdapter];
    D3DDeviceInfo*  pDeviceInfo  = &pAdapterInfo->devices[pAdapterInfo->dwCurrentDevice];
    D3DModeInfo*    pModeInfo    = &pDeviceInfo->modes[pDeviceInfo->dwCurrentMode];

    // Need device change if going windowed and the current device
    // can only be fullscreen
    if( !m_bWindowed && !pDeviceInfo->bCanDoWindowed )
        return ForceWindowed();

    m_bReady = FALSE;

    // Toggle the windowed state
    m_bWindowed = !m_bWindowed;
    pDeviceInfo->bWindowed = m_bWindowed;

    // Prepare window for windowed/fullscreen change
    AdjustWindowForChange();

    // Set up the presentation parameters
    m_d3dpp.Windowed               = pDeviceInfo->bWindowed;
    m_d3dpp.MultiSampleType        = pDeviceInfo->MultiSampleType;
    m_d3dpp.AutoDepthStencilFormat = pModeInfo->DepthStencilFormat;
    m_d3dpp.hDeviceWindow          = m_hWnd;
    if( m_bWindowed )
    {
        m_d3dpp.BackBufferWidth  = m_rcWindowClient.right - m_rcWindowClient.left;
        m_d3dpp.BackBufferHeight = m_rcWindowClient.bottom - m_rcWindowClient.top;
        m_d3dpp.BackBufferFormat = pAdapterInfo->d3ddmDesktop.Format;
    }
    else
    {
        m_d3dpp.BackBufferWidth  = pModeInfo->Width;
        m_d3dpp.BackBufferHeight = pModeInfo->Height;