Tutorial: Crear contenido Direct3D9 para hospedarlo en WPF

Artículo
05/04/2023

En este tutorial se muestra cómo crear contenido Direct3D9 adecuado para hospedaje en una aplicación de Windows Presentation Foundation (WPF). Para obtener más información sobre cómo hospedar contenido Direct3D9 en aplicaciones de WPF, consulte Interoperabilidad entre WPF y Direct3D9.

En este tutorial, realizará las tareas siguientes:

Cree un proyecto de Direct3D9.
Configure el proyecto de Direct3D9 para hospedaje en una aplicación WPF.

Cuando haya terminado, tendrá un archivo DLL que contiene contenido Direct3D9 para su uso en una aplicación WPF.

Requisitos previos

Necesitará los componentes siguientes para completar este tutorial:

Visual Studio 2010.
SDK de DirectX 9 o versiones posteriores.

Creación del proyecto de Direct3D9

El primer paso es crear y configurar el proyecto de Direct3D9.

Para crear el proyecto de Direct3D9

Cree un nuevo proyecto de Win32 en C++ denominado D3DContent.

Se abre el Asistente para aplicaciones Win32 y se muestra la pantalla de bienvenida.
Haga clic en Siguiente.

Aparece la pantalla Configuración de la aplicación.
En la sección Tipo de aplicación:, seleccione la opción DLL.
Haga clic en Finalizar

Se genera el proyecto de D3DContent.
En el Explorador de soluciones, haga clic con el botón derecho en el proyecto de D3DContent y seleccione Propiedades.

Se abrirá el cuadro de diálogo Páginas de propiedades de D3DContent.
Seleccione el nodo C/C++.
En el campo Directorios de inclusión adicionales, especifique la ubicación de la carpeta de inclusión de DirectX. La ubicación predeterminada de esta carpeta es %ProgramFiles%\Microsoft DirectX SDK (version)\Include.
Haga doble clic en el nodo Enlazador para expandirlo.
En el campo Directorios de biblioteca adicionales, especifique la ubicación de la carpeta de bibliotecas de DirectX. La ubicación predeterminada de esta carpeta es %ProgramFiles%\Microsoft DirectX SDK (version)\Lib\x86.
Seleccione el nodo Entrada.
En el campo Dependencias adicionales, agregue los archivos d3d9.lib y d3dx9.lib.
En el Explorador de soluciones, agregue un nuevo archivo de definición de módulo (.def) denominado D3DContent.def al proyecto.

Creación del contenido Direct3D9

Para obtener el mejor rendimiento, el contenido Direct3D9 debe usar una configuración determinada. En el código siguiente se muestra cómo crear una superficie de Direct3D9 que tenga las mejores características de rendimiento. Para obtener más información, consulte Consideraciones de rendimiento para la interoperabilidad entre Direct3D9 y WPF.

Para crear el contenido Direct3D9

Con el Explorador de soluciones, agregue tres clases de C++ al proyecto denominado como aparece a continuación.

CRenderer (con destructor virtual)

CRendererManager

CTriangleRenderer

Abra Renderer.h en el Editor de código y reemplace el código generado automáticamente por el código siguiente.


#pragma once

class CRenderer
{
public:
    virtual ~CRenderer();

    HRESULT CheckDeviceState();
    HRESULT CreateSurface(UINT uWidth, UINT uHeight, bool fUseAlpha, UINT m_uNumSamples);

    virtual HRESULT Render() = 0;

    IDirect3DSurface9 *GetSurfaceNoRef() { return m_pd3dRTS; }

protected:
    CRenderer();

    virtual HRESULT Init(IDirect3D9 *pD3D, IDirect3D9Ex *pD3DEx, HWND hwnd, UINT uAdapter);

    IDirect3DDevice9   *m_pd3dDevice;
    IDirect3DDevice9Ex *m_pd3dDeviceEx;

    IDirect3DSurface9 *m_pd3dRTS;

};

Abra Renderer.cpp en el Editor de código y reemplace el código generado automáticamente por el código siguiente.

//+-----------------------------------------------------------------------------
//
//  CRenderer
//
//      An abstract base class that creates a device and a target render 
//      surface. Derive from this class and override Init() and Render() 
//      to do your own rendering. See CTriangleRenderer for an example.


//------------------------------------------------------------------------------

#include "StdAfx.h"

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRenderer ctor
//
//------------------------------------------------------------------------------
CRenderer::CRenderer() : m_pd3dDevice(NULL), m_pd3dDeviceEx(NULL), m_pd3dRTS(NULL)
{
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRenderer dtor
//
//------------------------------------------------------------------------------
CRenderer::~CRenderer()
{
    SAFE_RELEASE(m_pd3dDevice);
    SAFE_RELEASE(m_pd3dDeviceEx);
    SAFE_RELEASE(m_pd3dRTS);
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRenderer::CheckDeviceState
//
//  Synopsis:
//      Returns the status of the device. 9Ex devices are a special case because 
//      TestCooperativeLevel() has been deprecated in 9Ex.
//
//------------------------------------------------------------------------------
HRESULT 
CRenderer::CheckDeviceState()
{
    if (m_pd3dDeviceEx)
    {
        return m_pd3dDeviceEx->CheckDeviceState(NULL);
    }
    else if (m_pd3dDevice)
    {
        return m_pd3dDevice->TestCooperativeLevel();
    }
    else
    {
        return D3DERR_DEVICELOST;
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRenderer::CreateSurface
//
//  Synopsis:
//      Creates and sets the render target
//
//------------------------------------------------------------------------------
HRESULT
CRenderer::CreateSurface(UINT uWidth, UINT uHeight, bool fUseAlpha, UINT m_uNumSamples)
{
    HRESULT hr = S_OK;

    SAFE_RELEASE(m_pd3dRTS);

    IFC(m_pd3dDevice->CreateRenderTarget(
        uWidth,
        uHeight,
        fUseAlpha ? D3DFMT_A8R8G8B8 : D3DFMT_X8R8G8B8,
        static_cast<D3DMULTISAMPLE_TYPE>(m_uNumSamples),
        0,
        m_pd3dDeviceEx ? FALSE : TRUE,  // Lockable RT required for good XP perf
        &m_pd3dRTS,
        NULL
        ));

    IFC(m_pd3dDevice->SetRenderTarget(0, m_pd3dRTS));

Cleanup:
    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRenderer::Init
//
//  Synopsis:
//      Creates the device
//
//------------------------------------------------------------------------------
HRESULT 
CRenderer::Init(IDirect3D9 *pD3D, IDirect3D9Ex *pD3DEx, HWND hwnd, UINT uAdapter)
{
    HRESULT hr = S_OK;

    D3DPRESENT_PARAMETERS d3dpp;
    ZeroMemory(&d3dpp, sizeof(d3dpp));
    d3dpp.Windowed = TRUE;
    d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
    d3dpp.BackBufferHeight = 1;
    d3dpp.BackBufferWidth = 1;
    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;

    D3DCAPS9 caps;
    DWORD dwVertexProcessing;
    IFC(pD3D->GetDeviceCaps(uAdapter, D3DDEVTYPE_HAL, &caps));
    if ((caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT) == D3DDEVCAPS_HWTRANSFORMANDLIGHT)
    {
        dwVertexProcessing = D3DCREATE_HARDWARE_VERTEXPROCESSING;
    }
    else
    {
        dwVertexProcessing = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
    }

    if (pD3DEx)
    {
        IDirect3DDevice9Ex *pd3dDevice = NULL;
        IFC(pD3DEx->CreateDeviceEx(
            uAdapter,
            D3DDEVTYPE_HAL,
            hwnd,
            dwVertexProcessing | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
            &d3dpp,
            NULL,
            &m_pd3dDeviceEx
            ));

        IFC(m_pd3dDeviceEx->QueryInterface(__uuidof(IDirect3DDevice9), reinterpret_cast<void**>(&m_pd3dDevice)));  
    }
    else 
    {
        assert(pD3D);

        IFC(pD3D->CreateDevice(
            uAdapter,
            D3DDEVTYPE_HAL,
            hwnd,
            dwVertexProcessing | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
            &d3dpp,
            &m_pd3dDevice
            ));
    }

Cleanup:
    return hr;
}

Abra RendererManager.h en el Editor de código y reemplace el código generado automáticamente por el código siguiente.


#pragma once

class CRenderer;

class CRendererManager
{
public:
    static HRESULT Create(CRendererManager **ppManager);
    ~CRendererManager();

    HRESULT EnsureDevices();

    void SetSize(UINT uWidth, UINT uHeight);
    void SetAlpha(bool fUseAlpha);
    void SetNumDesiredSamples(UINT uNumSamples);
    void SetAdapter(POINT screenSpacePoint);

    HRESULT GetBackBufferNoRef(IDirect3DSurface9 **ppSurface);

    HRESULT Render();

private:
    CRendererManager();

    void CleanupInvalidDevices();
    HRESULT EnsureRenderers();
    HRESULT EnsureHWND();
    HRESULT EnsureD3DObjects();
    HRESULT TestSurfaceSettings();
    void DestroyResources();

    IDirect3D9    *m_pD3D;
    IDirect3D9Ex  *m_pD3DEx;

    UINT m_cAdapters;
    CRenderer **m_rgRenderers;
    CRenderer *m_pCurrentRenderer;

    HWND m_hwnd;

    UINT m_uWidth;
    UINT m_uHeight;
    UINT m_uNumSamples;
    bool m_fUseAlpha;
    bool m_fSurfaceSettingsChanged;
};

Abra RendererManager.cpp en el Editor de código y reemplace el código generado automáticamente por el código siguiente.


//+-----------------------------------------------------------------------------
//
//  CRendererManager
//
//      Manages the list of CRenderers. Managed code pinvokes into this class
//      and this class forwards to the appropriate CRenderer.
//
//------------------------------------------------------------------------------

#include "StdAfx.h"

const static TCHAR szAppName[] = TEXT("D3DImageSample");
typedef HRESULT (WINAPI *DIRECT3DCREATE9EXFUNCTION)(UINT SDKVersion, IDirect3D9Ex**);

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager ctor
//
//------------------------------------------------------------------------------
CRendererManager::CRendererManager() 
    : 
    m_pD3D(NULL),
    m_pD3DEx(NULL),
    m_cAdapters(0),
    m_hwnd(NULL),
    m_pCurrentRenderer(NULL),
    m_rgRenderers(NULL),
    m_uWidth(1024),
    m_uHeight(1024),
    m_uNumSamples(0),
    m_fUseAlpha(false),
    m_fSurfaceSettingsChanged(true)
{

}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager dtor
//
//------------------------------------------------------------------------------
CRendererManager::~CRendererManager()
{
    DestroyResources();

    if (m_hwnd)
    {
        DestroyWindow(m_hwnd);
        UnregisterClass(szAppName, NULL);
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::Create
//
//  Synopsis:
//      Creates the manager
//
//------------------------------------------------------------------------------
HRESULT
CRendererManager::Create(CRendererManager **ppManager)
{
    HRESULT hr = S_OK;

    *ppManager = new CRendererManager();
    IFCOOM(*ppManager);

Cleanup:
    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::EnsureRenderers
//
//  Synopsis:
//      Makes sure the CRenderer objects exist
//
//------------------------------------------------------------------------------
HRESULT
CRendererManager::EnsureRenderers()
{
    HRESULT hr = S_OK;

    if (!m_rgRenderers)
    {
        IFC(EnsureHWND());

        assert(m_cAdapters);    
        m_rgRenderers = new CRenderer*[m_cAdapters];
        IFCOOM(m_rgRenderers);
        ZeroMemory(m_rgRenderers, m_cAdapters * sizeof(m_rgRenderers[0]));

        for (UINT i = 0; i < m_cAdapters; ++i)
        {
            IFC(CTriangleRenderer::Create(m_pD3D, m_pD3DEx, m_hwnd, i, &m_rgRenderers[i]));
        }

        // Default to the default adapter 
        m_pCurrentRenderer = m_rgRenderers[0];
    }

Cleanup:
    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::EnsureHWND
//
//  Synopsis:
//      Makes sure an HWND exists if we need it
//
//------------------------------------------------------------------------------
HRESULT
CRendererManager::EnsureHWND()
{
    HRESULT hr = S_OK;

    if (!m_hwnd)
    {
        WNDCLASS wndclass;

        wndclass.style = CS_HREDRAW | CS_VREDRAW;
        wndclass.lpfnWndProc = DefWindowProc;
        wndclass.cbClsExtra = 0;
        wndclass.cbWndExtra = 0;
        wndclass.hInstance = NULL;
        wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
        wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
        wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
        wndclass.lpszMenuName = NULL;
        wndclass.lpszClassName = szAppName;

        if (!RegisterClass(&wndclass))
        {
            IFC(E_FAIL);
        }

        m_hwnd = CreateWindow(szAppName,
                            TEXT("D3DImageSample"),
                            WS_OVERLAPPEDWINDOW,
                            0,                   // Initial X
                            0,                   // Initial Y
                            0,                   // Width
                            0,                   // Height
                            NULL,
                            NULL,
                            NULL,
                            NULL);
    }

Cleanup:
    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::EnsureD3DObjects
//
//  Synopsis:
//      Makes sure the D3D objects exist
//
//------------------------------------------------------------------------------
HRESULT
CRendererManager::EnsureD3DObjects()
{
    HRESULT hr = S_OK;

    HMODULE hD3D = NULL;
    if (!m_pD3D)
    {
        hD3D = LoadLibrary(TEXT("d3d9.dll"));
        DIRECT3DCREATE9EXFUNCTION pfnCreate9Ex = (DIRECT3DCREATE9EXFUNCTION)GetProcAddress(hD3D, "Direct3DCreate9Ex");
        if (pfnCreate9Ex)
        {
            IFC((*pfnCreate9Ex)(D3D_SDK_VERSION, &m_pD3DEx));
            IFC(m_pD3DEx->QueryInterface(__uuidof(IDirect3D9), reinterpret_cast<void **>(&m_pD3D)));
        }
        else
        {
            m_pD3D = Direct3DCreate9(D3D_SDK_VERSION);
            if (!m_pD3D) 
            {
                IFC(E_FAIL);
            }
        }

        m_cAdapters = m_pD3D->GetAdapterCount();
    }

Cleanup:
    if (hD3D)
    {
        FreeLibrary(hD3D);
    }

    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::CleanupInvalidDevices
//
//  Synopsis:
//      Checks to see if any devices are bad and if so, deletes all resources
//
//      We could delete resources and wait for D3DERR_DEVICENOTRESET and reset
//      the devices, but if the device is lost because of an adapter order 
//      change then our existing D3D objects would have stale adapter 
//      information. We'll delete everything to be safe rather than sorry.
//
//------------------------------------------------------------------------------
void
CRendererManager::CleanupInvalidDevices()
{
    for (UINT i = 0; i < m_cAdapters; ++i)
    {
        if (FAILED(m_rgRenderers[i]->CheckDeviceState()))
        {
            DestroyResources();
            break;
        }
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::GetBackBufferNoRef
//
//  Synopsis:
//      Returns the surface of the current renderer without adding a reference
//
//      This can return NULL if we're in a bad device state.
//
//------------------------------------------------------------------------------
HRESULT 
CRendererManager::GetBackBufferNoRef(IDirect3DSurface9 **ppSurface)
{
    HRESULT hr = S_OK;

    // Make sure we at least return NULL
    *ppSurface = NULL;

    CleanupInvalidDevices();

    IFC(EnsureD3DObjects());

    //
    // Even if we never render to another adapter, this sample creates devices
    // and resources on each one. This is a potential waste of video memory,
    // but it guarantees that we won't have any problems (e.g. out of video
    // memory) when switching to render on another adapter. In your own code
    // you may choose to delay creation but you'll need to handle the issues
    // that come with it.
    //

    IFC(EnsureRenderers());

    if (m_fSurfaceSettingsChanged)
    {
        if (FAILED(TestSurfaceSettings()))
        {
            IFC(E_FAIL);
        }

        for (UINT i = 0; i < m_cAdapters; ++i)
        {
            IFC(m_rgRenderers[i]->CreateSurface(m_uWidth, m_uHeight, m_fUseAlpha, m_uNumSamples));
        }

        m_fSurfaceSettingsChanged = false;
    }

    if (m_pCurrentRenderer)
    {
        *ppSurface = m_pCurrentRenderer->GetSurfaceNoRef();
    }

Cleanup:
    // If we failed because of a bad device, ignore the failure for now and 
    // we'll clean up and try again next time.
    if (hr == D3DERR_DEVICELOST)
    {
        hr = S_OK;
    }

    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::TestSurfaceSettings
//
//  Synopsis:
//      Checks to see if our current surface settings are allowed on all
//      adapters.
//
//------------------------------------------------------------------------------
HRESULT
CRendererManager::TestSurfaceSettings()
{
    HRESULT hr = S_OK;

    D3DFORMAT fmt = m_fUseAlpha ? D3DFMT_A8R8G8B8 : D3DFMT_X8R8G8B8;

    // 
    // We test all adapters because because we potentially use all adapters.
    // But even if this sample only rendered to the default adapter, you
    // should check all adapters because WPF may move your surface to
    // another adapter for you!
    //

    for (UINT i = 0; i < m_cAdapters; ++i)
    {
        // Can we get HW rendering?
        IFC(m_pD3D->CheckDeviceType(
            i,
            D3DDEVTYPE_HAL,
            D3DFMT_X8R8G8B8,
            fmt,
            TRUE
            )); 

        // Is the format okay?
        IFC(m_pD3D->CheckDeviceFormat(
            i,
            D3DDEVTYPE_HAL,
            D3DFMT_X8R8G8B8,
            D3DUSAGE_RENDERTARGET | D3DUSAGE_DYNAMIC, // We'll use dynamic when on XP
            D3DRTYPE_SURFACE,
            fmt
            ));

        // D3DImage only allows multisampling on 9Ex devices. If we can't 
        // multisample, overwrite the desired number of samples with 0.
        if (m_pD3DEx && m_uNumSamples > 1)
        {   
            assert(m_uNumSamples <= 16);

            if (FAILED(m_pD3D->CheckDeviceMultiSampleType(
                i,
                D3DDEVTYPE_HAL,
                fmt,
                TRUE,
                static_cast<D3DMULTISAMPLE_TYPE>(m_uNumSamples),
                NULL
                )))
            {
                m_uNumSamples = 0;
            }
        }
        else
        {
            m_uNumSamples = 0;
        }
    }

Cleanup:
    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::DestroyResources
//
//  Synopsis:
//      Delete all D3D resources
//
//------------------------------------------------------------------------------
void 
CRendererManager::DestroyResources()
{
    SAFE_RELEASE(m_pD3D);
    SAFE_RELEASE(m_pD3DEx);

    for (UINT i = 0; i < m_cAdapters; ++i)
    {
        delete m_rgRenderers[i];
    }
    delete [] m_rgRenderers;
    m_rgRenderers = NULL;

    m_pCurrentRenderer = NULL;
    m_cAdapters = 0;

    m_fSurfaceSettingsChanged = true;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::SetSize
//
//  Synopsis:
//      Update the size of the surface. Next render will create a new surface.
//
//------------------------------------------------------------------------------
void 
CRendererManager::SetSize(UINT uWidth, UINT uHeight)
{
    if (uWidth != m_uWidth || uHeight != m_uHeight)
    {
        m_uWidth = uWidth;
        m_uHeight = uHeight;
        m_fSurfaceSettingsChanged = true;
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::SetAlpha
//
//  Synopsis:
//      Update the format of the surface. Next render will create a new surface.
//
//------------------------------------------------------------------------------
void
CRendererManager::SetAlpha(bool fUseAlpha)
{
    if (fUseAlpha != m_fUseAlpha)
    {
        m_fUseAlpha = fUseAlpha;
        m_fSurfaceSettingsChanged = true;
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::SetNumDesiredSamples
//
//  Synopsis:
//      Update the MSAA settings of the surface. Next render will create a 
//      new surface.
//
//------------------------------------------------------------------------------
void 
CRendererManager::SetNumDesiredSamples(UINT uNumSamples)
{
    if (m_uNumSamples != uNumSamples)
    {
        m_uNumSamples = uNumSamples;
        m_fSurfaceSettingsChanged = true;
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::SetAdapter
//
//  Synopsis:
//      Update the current renderer. Next render will use the new renderer.
//
//------------------------------------------------------------------------------
void 
CRendererManager::SetAdapter(POINT screenSpacePoint)
{
    CleanupInvalidDevices();

    //
    // After CleanupInvalidDevices, we may not have any D3D objects. Rather than
    // recreate them here, ignore the adapter update and wait for render to recreate.
    //

    if (m_pD3D && m_rgRenderers)
    {
        HMONITOR hMon = MonitorFromPoint(screenSpacePoint, MONITOR_DEFAULTTONULL);

        for (UINT i = 0; i < m_cAdapters; ++i)
        {
            if (hMon == m_pD3D->GetAdapterMonitor(i))
            {
                m_pCurrentRenderer = m_rgRenderers[i];
                break;
            }
        }
    }
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CRendererManager::Render
//
//  Synopsis:
//      Forward to the current renderer
//
//------------------------------------------------------------------------------
HRESULT
CRendererManager::Render()
{
    return m_pCurrentRenderer ? m_pCurrentRenderer->Render() : S_OK;
}

Abra TriangleRenderer.h en el Editor de código y reemplace el código generado automáticamente por el código siguiente.

#pragma once

class CTriangleRenderer : public CRenderer
{
public:
    static HRESULT Create(IDirect3D9 *pD3D, IDirect3D9Ex *pD3DEx, HWND hwnd, UINT uAdapter, CRenderer **ppRenderer);
    ~CTriangleRenderer();

    HRESULT Render();

protected:
    HRESULT Init(IDirect3D9 *pD3D, IDirect3D9Ex *pD3DEx, HWND hwnd, UINT uAdapter);

private:
    CTriangleRenderer();

    IDirect3DVertexBuffer9 *m_pd3dVB;
};

Abra TriangleRenderer.cpp en el Editor de código y reemplace el código generado automáticamente por el código siguiente.


//+-----------------------------------------------------------------------------
//
//  CTriangleRenderer
//
//      Subclass of CRenderer that renders a single, spinning triangle
//
//------------------------------------------------------------------------------

#include "StdAfx.h"

struct CUSTOMVERTEX
{
    FLOAT x, y, z; 
    DWORD color;
};

#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ | D3DFVF_DIFFUSE)

//+-----------------------------------------------------------------------------
//
//  Member:
//      CTriangleRenderer ctor
//
//------------------------------------------------------------------------------
CTriangleRenderer::CTriangleRenderer() : CRenderer(), m_pd3dVB(NULL)
{
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CTriangleRenderer dtor
//
//------------------------------------------------------------------------------
CTriangleRenderer::~CTriangleRenderer()
{
    SAFE_RELEASE(m_pd3dVB);
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CTriangleRenderer::Create
//
//  Synopsis:
//      Creates the renderer
//
//------------------------------------------------------------------------------
HRESULT 
CTriangleRenderer::Create(IDirect3D9 *pD3D, IDirect3D9Ex *pD3DEx, HWND hwnd, UINT uAdapter, CRenderer **ppRenderer)
{
    HRESULT hr = S_OK;
    
    CTriangleRenderer *pRenderer = new CTriangleRenderer();
    IFCOOM(pRenderer);

    IFC(pRenderer->Init(pD3D, pD3DEx, hwnd, uAdapter));

    *ppRenderer = pRenderer;
    pRenderer = NULL;

Cleanup:
    delete pRenderer;

    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CTriangleRenderer::Init
//
//  Synopsis:
//      Override of CRenderer::Init that calls base to create the device and 
//      then creates the CTriangleRenderer-specific resources
//
//------------------------------------------------------------------------------
HRESULT 
CTriangleRenderer::Init(IDirect3D9 *pD3D, IDirect3D9Ex *pD3DEx, HWND hwnd, UINT uAdapter)
{
    HRESULT hr = S_OK;
    D3DXMATRIXA16 matView, matProj;
    D3DXVECTOR3 vEyePt(0.0f, 0.0f,-5.0f);
    D3DXVECTOR3 vLookatPt(0.0f, 0.0f, 0.0f);
    D3DXVECTOR3 vUpVec(0.0f, 1.0f, 0.0f);

    // Call base to create the device and render target
    IFC(CRenderer::Init(pD3D, pD3DEx, hwnd, uAdapter));

    // Set up the VB
    CUSTOMVERTEX vertices[] =
    {
        { -1.0f, -1.0f, 0.0f, 0xffff0000, }, // x, y, z, color
        {  1.0f, -1.0f, 0.0f, 0xff00ff00, },
        {  0.0f,  1.0f, 0.0f, 0xff00ffff, },
    };

    IFC(m_pd3dDevice->CreateVertexBuffer(sizeof(vertices), 0, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &m_pd3dVB, NULL));

    void *pVertices;
    IFC(m_pd3dVB->Lock(0, sizeof(vertices), &pVertices, 0));
    memcpy(pVertices, vertices, sizeof(vertices));
    m_pd3dVB->Unlock();

    // Set up the camera
    D3DXMatrixLookAtLH(&matView, &vEyePt, &vLookatPt, &vUpVec);
    IFC(m_pd3dDevice->SetTransform(D3DTS_VIEW, &matView));
    D3DXMatrixPerspectiveFovLH(&matProj, D3DX_PI / 4, 1.0f, 1.0f, 100.0f);
    IFC(m_pd3dDevice->SetTransform(D3DTS_PROJECTION, &matProj));

    // Set up the global state
    IFC(m_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE));
    IFC(m_pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE));
    IFC(m_pd3dDevice->SetStreamSource(0, m_pd3dVB, 0, sizeof(CUSTOMVERTEX)));
    IFC(m_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX));

Cleanup:
    return hr;
}

//+-----------------------------------------------------------------------------
//
//  Member:
//      CTriangleRenderer::Render
//
//  Synopsis:
//      Renders the rotating triangle
//
//------------------------------------------------------------------------------
HRESULT
CTriangleRenderer::Render()
{
    HRESULT hr = S_OK;
    D3DXMATRIXA16 matWorld;

    IFC(m_pd3dDevice->BeginScene());
    IFC(m_pd3dDevice->Clear(
        0,
        NULL,
        D3DCLEAR_TARGET,
        D3DCOLOR_ARGB(128, 0, 0, 128),  // NOTE: Premultiplied alpha!
        1.0f,
        0
        ));

    // Set up the rotation
    UINT  iTime  = GetTickCount() % 1000;
    FLOAT fAngle = iTime * (2.0f * D3DX_PI) / 1000.0f;
    D3DXMatrixRotationY(&matWorld, fAngle);
    IFC(m_pd3dDevice->SetTransform(D3DTS_WORLD, &matWorld));

    IFC(m_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1));

    IFC(m_pd3dDevice->EndScene());

Cleanup:
    return hr;
}

Abra stdafx.h en el Editor de código y reemplace el código generado automáticamente por el código siguiente.

// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//

#pragma once

#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers
// Windows Header Files:
#include <windows.h>

#include <d3d9.h>
#include <d3dx9.h>

#include <assert.h>

#include "RendererManager.h"
#include "Renderer.h"
#include "TriangleRenderer.h"

#define IFC(x) { hr = (x); if (FAILED(hr)) goto Cleanup; }
#define IFCOOM(x) { if ((x) == NULL) { hr = E_OUTOFMEMORY; IFC(hr); } }
#define SAFE_RELEASE(x) { if (x) { x->Release(); x = NULL; } }

Abra dllmain.cpp en el Editor de código y reemplace el código generado automáticamente por el código siguiente.

// dllmain.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
                     )
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}

static CRendererManager *pManager = NULL;

static HRESULT EnsureRendererManager()
{
    return pManager ? S_OK : CRendererManager::Create(&pManager);
}

extern "C" HRESULT WINAPI SetSize(UINT uWidth, UINT uHeight)
{
    HRESULT hr = S_OK;

    IFC(EnsureRendererManager());

    pManager->SetSize(uWidth, uHeight);

Cleanup:
    return hr;
}

extern "C" HRESULT WINAPI SetAlpha(BOOL fUseAlpha)
{
    HRESULT hr = S_OK;

    IFC(EnsureRendererManager());

    pManager->SetAlpha(!!fUseAlpha);

Cleanup:
    return hr;
}

extern "C" HRESULT WINAPI SetNumDesiredSamples(UINT uNumSamples)
{
    HRESULT hr = S_OK;

    IFC(EnsureRendererManager());

    pManager->SetNumDesiredSamples(uNumSamples);

Cleanup:
    return hr;
}

extern "C" HRESULT WINAPI SetAdapter(POINT screenSpacePoint)
{
    HRESULT hr = S_OK;

    IFC(EnsureRendererManager());

    pManager->SetAdapter(screenSpacePoint);

Cleanup:
    return hr;
}

extern "C" HRESULT WINAPI GetBackBufferNoRef(IDirect3DSurface9 **ppSurface)
{
    HRESULT hr = S_OK;

    IFC(EnsureRendererManager());

    IFC(pManager->GetBackBufferNoRef(ppSurface));

Cleanup:
    return hr;
}

extern "C" HRESULT WINAPI Render()
{
    assert(pManager);

    return pManager->Render();
}

extern "C" void WINAPI Destroy()
{
    delete pManager;
    pManager = NULL;
}

Abra D3DContent.def en el editor de código.

Reemplace el código generado automáticamente por el siguiente.

LIBRARY "D3DContent"

EXPORTS

SetSize
SetAlpha
SetNumDesiredSamples
SetAdapter

GetBackBufferNoRef
Render
Destroy

Compile el proyecto.

Pasos siguientes

Hospede el contenido Direct3D9 en una aplicación WPF. Para obtener más información, consulte Tutorial: Hospedar contenido Direct3D9 en WPF.

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