C++ IDirect3DDevice9::CreateAdditionalSwapChain方法代码示例

void SwapChain9::recreate()
{
    if (!mSwapChain)
    {
        return;
    }

    IDirect3DDevice9 *device = mRenderer->getDevice();
    if (device == NULL)
    {
        return;
    }

    D3DPRESENT_PARAMETERS presentParameters;
    HRESULT result = mSwapChain->GetPresentParameters(&presentParameters);
    ASSERT(SUCCEEDED(result));

    IDirect3DSwapChain9* newSwapChain = NULL;
    result = device->CreateAdditionalSwapChain(&presentParameters, &newSwapChain);
    if (FAILED(result))
    {
        return;
    }

    mSwapChain->Release();
    mSwapChain = newSwapChain;

    mBackBuffer->Release();
    result = mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mBackBuffer);
    ASSERT(SUCCEEDED(result));
}

//.........这里部分代码省略.........
            rect.right = backbufferWidth;
        }

        if (rect.bottom > static_cast<LONG>(backbufferHeight))
        {
            rect.bottom = backbufferHeight;
        }

        mRenderer->endScene();

        result = device->StretchRect(oldRenderTarget, &rect, mRenderTarget, &rect, D3DTEXF_NONE);
        ASSERT(SUCCEEDED(result));

        oldRenderTarget->Release();
    }

    if (mWindow)
    {
        D3DPRESENT_PARAMETERS presentParameters = {0};
        presentParameters.AutoDepthStencilFormat = gl_d3d9::ConvertRenderbufferFormat(mDepthBufferFormat);
        presentParameters.BackBufferCount = 1;
        presentParameters.BackBufferFormat = gl_d3d9::ConvertRenderbufferFormat(mBackBufferFormat);
        presentParameters.EnableAutoDepthStencil = FALSE;
        presentParameters.Flags = 0;
        presentParameters.hDeviceWindow = mWindow;
        presentParameters.MultiSampleQuality = 0;                  // FIXME: Unimplemented
        presentParameters.MultiSampleType = D3DMULTISAMPLE_NONE;   // FIXME: Unimplemented
        presentParameters.PresentationInterval = convertInterval(swapInterval);
        presentParameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
        presentParameters.Windowed = TRUE;
        presentParameters.BackBufferWidth = backbufferWidth;
        presentParameters.BackBufferHeight = backbufferHeight;

        // http://crbug.com/140239
        // http://crbug.com/143434
        //
        // Some AMD/Intel switchable systems / drivers appear to round swap chain surfaces to a multiple of 64 pixels in width
        // when using the integrated Intel. This rounds the width up rather than down.
        //
        // Some non-switchable AMD GPUs / drivers do not respect the source rectangle to Present. Therefore, when the vendor ID
        // is not Intel, the back buffer width must be exactly the same width as the window or horizontal scaling will occur.
        if (mRenderer->getAdapterVendor() == VENDOR_ID_INTEL)
        {
            presentParameters.BackBufferWidth = (presentParameters.BackBufferWidth + 63) / 64 * 64;
        }

        result = device->CreateAdditionalSwapChain(&presentParameters, &mSwapChain);

        if (FAILED(result))
        {
            ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY || result == D3DERR_INVALIDCALL || result == D3DERR_DEVICELOST);

            ERR("Could not create additional swap chains or offscreen surfaces: %08lX", result);
            release();

            if (d3d9::isDeviceLostError(result))
            {
                return EGL_CONTEXT_LOST;
            }
            else
            {
                return EGL_BAD_ALLOC;
            }
        }

        result = mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mBackBuffer);
        ASSERT(SUCCEEDED(result));
        InvalidateRect(mWindow, NULL, FALSE);
    }

    if (mDepthBufferFormat != GL_NONE)
    {
        result = device->CreateDepthStencilSurface(backbufferWidth, backbufferHeight,
                                                   gl_d3d9::ConvertRenderbufferFormat(mDepthBufferFormat),
                                                   D3DMULTISAMPLE_NONE, 0, FALSE, &mDepthStencil, NULL);

        if (FAILED(result))
        {
            ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY || result == D3DERR_INVALIDCALL);

            ERR("Could not create depthstencil surface for new swap chain: 0x%08X", result);
            release();

            if (d3d9::isDeviceLostError(result))
            {
                return EGL_CONTEXT_LOST;
            }
            else
            {
                return EGL_BAD_ALLOC;
            }
        }
    }

    mWidth = backbufferWidth;
    mHeight = backbufferHeight;
    mSwapInterval = swapInterval;

    return EGL_SUCCESS;
}

bool Surface::resetSwapChain(int backbufferWidth, int backbufferHeight)
{
    IDirect3DDevice9 *device = mDisplay->getDevice();

    if (device == NULL)
    {
        return false;
    }

    // Evict all non-render target textures to system memory and release all resources
    // before reallocating them to free up as much video memory as possible.
    device->EvictManagedResources();
    release();

    D3DPRESENT_PARAMETERS presentParameters = {0};
    HRESULT result;

    bool useFlipEx = (LOWORD(GetVersion()) >= 0x61) && mDisplay->isD3d9ExDevice();

    // FlipEx causes unseemly stretching when resizing windows AND when one
    // draws outside of the WM_PAINT callback. While this is seldom a problem in
    // single process applications, it is particuarly noticeable in multiprocess
    // applications. Therefore, if the creator process of our window is not in
    // the current process, disable use of FlipEx.
    DWORD windowPID;
    GetWindowThreadProcessId(mWindow, &windowPID);
    if(windowPID != GetCurrentProcessId())
    useFlipEx = false;

    presentParameters.AutoDepthStencilFormat = mConfig->mDepthStencilFormat;
    // We set BackBufferCount = 1 even when we use D3DSWAPEFFECT_FLIPEX.
    // We do this because DirectX docs are a bit vague whether to set this to 1
    // or 2. The runtime seems to accept 1, so we speculate that either it is
    // forcing it to 2 without telling us, or better, doing something smart
    // behind the scenes knowing that we don't need more.
    presentParameters.BackBufferCount = 1;
    presentParameters.BackBufferFormat = mConfig->mRenderTargetFormat;
    presentParameters.EnableAutoDepthStencil = FALSE;
    presentParameters.Flags = 0;
    presentParameters.hDeviceWindow = getWindowHandle();
    presentParameters.MultiSampleQuality = 0;                  // FIXME: Unimplemented
    presentParameters.MultiSampleType = D3DMULTISAMPLE_NONE;   // FIXME: Unimplemented
    presentParameters.PresentationInterval = mPresentInterval;
    // Use flipEx on Win7 or greater.
    if(useFlipEx)
      presentParameters.SwapEffect = D3DSWAPEFFECT_FLIPEX;
    else
      presentParameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
    presentParameters.Windowed = TRUE;
    presentParameters.BackBufferWidth = backbufferWidth;
    presentParameters.BackBufferHeight = backbufferHeight;

    if (mWindow)
    {
        result = device->CreateAdditionalSwapChain(&presentParameters, &mSwapChain);
    } else {
        HANDLE *pShareHandle = NULL;
        if (mDisplay->isD3d9ExDevice()) {
            pShareHandle = &mShareHandle;
        }

        result = device->CreateTexture(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight, 1, D3DUSAGE_RENDERTARGET,
                                       presentParameters.BackBufferFormat, D3DPOOL_DEFAULT, &mOffscreenTexture, pShareHandle);
    }

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        ERR("Could not create additional swap chains or offscreen surfaces: %08lX", result);
        release();
        return error(EGL_BAD_ALLOC, false);
    }

    if (mConfig->mDepthStencilFormat != D3DFMT_UNKNOWN)
    {
        result = device->CreateDepthStencilSurface(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight,
                                                   presentParameters.AutoDepthStencilFormat, presentParameters.MultiSampleType,
                                                   presentParameters.MultiSampleQuality, FALSE, &mDepthStencil, NULL);
    }

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        ERR("Could not create depthstencil surface for new swap chain: %08lX", result);
        release();
        return error(EGL_BAD_ALLOC, false);
    }

    if (mWindow) {
        mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mRenderTarget);
        InvalidateRect(mWindow, NULL, FALSE);
    } else {
        mOffscreenTexture->GetSurfaceLevel(0, &mRenderTarget);
    }

    mWidth = presentParameters.BackBufferWidth;
    mHeight = presentParameters.BackBufferHeight;

//.........这里部分代码省略.........

void Surface::resetSwapChain(int backbufferWidth, int backbufferHeight)
{
    IDirect3DDevice9 *device = mDisplay->getDevice();

    if (device == NULL)
    {
        return;
    }

    // Evict all non-render target textures to system memory and release all resources
    // before reallocating them to free up as much video memory as possible.
    device->EvictManagedResources();
    release();

    D3DPRESENT_PARAMETERS presentParameters = {0};
    HRESULT result;

    presentParameters.AutoDepthStencilFormat = mConfig->mDepthStencilFormat;
    presentParameters.BackBufferCount = 1;
    presentParameters.BackBufferFormat = mConfig->mRenderTargetFormat;
    presentParameters.EnableAutoDepthStencil = FALSE;
    presentParameters.Flags = 0;
    presentParameters.hDeviceWindow = getWindowHandle();
    presentParameters.MultiSampleQuality = 0;                  // FIXME: Unimplemented
    presentParameters.MultiSampleType = D3DMULTISAMPLE_NONE;   // FIXME: Unimplemented
    presentParameters.PresentationInterval = mPresentInterval;
    presentParameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
    presentParameters.Windowed = TRUE;
    presentParameters.BackBufferWidth = backbufferWidth;
    presentParameters.BackBufferHeight = backbufferHeight;

    if (mWindow)
    {
        result = device->CreateAdditionalSwapChain(&presentParameters, &mSwapChain);
    } else {
        HANDLE *pShareHandle = NULL;
        if (mDisplay->isD3d9exDevice()) {
            pShareHandle = &mShareHandle;
        }

        result = device->CreateTexture(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight, 1, D3DUSAGE_RENDERTARGET,
                                       presentParameters.BackBufferFormat, D3DPOOL_DEFAULT, &mOffscreenTexture, pShareHandle);
    }

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        ERR("Could not create additional swap chains or offscreen surfaces: %08lX", result);
        release();
        return error(EGL_BAD_ALLOC);
    }

    result = device->CreateDepthStencilSurface(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight,
                                               presentParameters.AutoDepthStencilFormat, presentParameters.MultiSampleType,
                                               presentParameters.MultiSampleQuality, FALSE, &mDepthStencil, NULL);

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        ERR("Could not create depthstencil surface for new swap chain: %08lX", result);
        release();
        return error(EGL_BAD_ALLOC);
    }

    if (mWindow) {
        mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mRenderTarget);
        InvalidateRect(mWindow, NULL, FALSE);
    } else {
        mOffscreenTexture->GetSurfaceLevel(0, &mRenderTarget);
    }

    mWidth = presentParameters.BackBufferWidth;
    mHeight = presentParameters.BackBufferHeight;

    mPresentIntervalDirty = false;
}

void Surface::resetSwapChain()
{
    IDirect3DDevice9 *device = mDisplay->getDevice();

    D3DPRESENT_PARAMETERS presentParameters = {0};

    presentParameters.AutoDepthStencilFormat = mConfig->mDepthStencilFormat;
    presentParameters.BackBufferCount = 1;
    presentParameters.BackBufferFormat = mConfig->mRenderTargetFormat;
    presentParameters.EnableAutoDepthStencil = FALSE;
    presentParameters.Flags = 0;
    presentParameters.hDeviceWindow = getWindowHandle();
    presentParameters.MultiSampleQuality = 0;                  // FIXME: Unimplemented
    presentParameters.MultiSampleType = D3DMULTISAMPLE_NONE;   // FIXME: Unimplemented
    presentParameters.PresentationInterval = Display::convertInterval(mConfig->mMinSwapInterval);
    presentParameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
    presentParameters.Windowed = TRUE;

    RECT windowRect;
    if (!GetClientRect(getWindowHandle(), &windowRect))
    {
        ASSERT(false);
        return;
    }

    presentParameters.BackBufferWidth = windowRect.right - windowRect.left;
    presentParameters.BackBufferHeight = windowRect.bottom - windowRect.top;

    IDirect3DSwapChain9 *swapChain = NULL;
    HRESULT result = device->CreateAdditionalSwapChain(&presentParameters, &swapChain);

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        ERR("Could not create additional swap chains: %08lX", result);
        return error(EGL_BAD_ALLOC);
    }

    IDirect3DSurface9 *depthStencilSurface = NULL;
    result = device->CreateDepthStencilSurface(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight,
                                               presentParameters.AutoDepthStencilFormat, presentParameters.MultiSampleType,
                                               presentParameters.MultiSampleQuality, FALSE, &depthStencilSurface, NULL);

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        swapChain->Release();

        ERR("Could not create depthstencil surface for new swap chain: %08lX", result);
        return error(EGL_BAD_ALLOC);
    }

    IDirect3DSurface9 *renderTarget = NULL;
    result = device->CreateRenderTarget(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight, presentParameters.BackBufferFormat,
                                        presentParameters.MultiSampleType, presentParameters.MultiSampleQuality, FALSE, &renderTarget, NULL);

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        swapChain->Release();
        depthStencilSurface->Release();

        ERR("Could not create render target surface for new swap chain: %08lX", result);
        return error(EGL_BAD_ALLOC);
    }

    ASSERT(SUCCEEDED(result));

    IDirect3DTexture9 *flipTexture = NULL;
    result = device->CreateTexture(presentParameters.BackBufferWidth, presentParameters.BackBufferHeight, 1, D3DUSAGE_RENDERTARGET,
                                   presentParameters.BackBufferFormat, D3DPOOL_DEFAULT, &flipTexture, NULL);

    if (FAILED(result))
    {
        ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);

        swapChain->Release();
        depthStencilSurface->Release();
        renderTarget->Release();

        ERR("Could not create flip texture for new swap chain: %08lX", result);
        return error(EGL_BAD_ALLOC);
    }

    IDirect3DSurface9 *backBuffer = NULL;
    swapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &backBuffer);

    if (mSwapChain) mSwapChain->Release();
    if (mDepthStencil) mDepthStencil->Release();
    if (mBackBuffer) mBackBuffer->Release();
    if (mRenderTarget) mRenderTarget->Release();
    if (mFlipTexture) mFlipTexture->Release();

    mWidth = presentParameters.BackBufferWidth;
    mHeight = presentParameters.BackBufferHeight;

    mSwapChain = swapChain;
//.........这里部分代码省略.........