Example #1
0
EGLint SwapChain11::resetOffscreenTexture(int backbufferWidth, int backbufferHeight)
{
    ID3D11Device *device = mRenderer->getDevice();

    ASSERT(device != NULL);

    // D3D11 does not allow zero size textures
    ASSERT(backbufferWidth >= 1);
    ASSERT(backbufferHeight >= 1);

    // Preserve the render target content
    ID3D11Texture2D *previousOffscreenTexture = mOffscreenTexture;
    if (previousOffscreenTexture)
    {
        previousOffscreenTexture->AddRef();
    }
    const int previousWidth = mWidth;
    const int previousHeight = mHeight;

    releaseOffscreenTexture();

    // If the app passed in a share handle, open the resource
    // See EGL_ANGLE_d3d_share_handle_client_buffer
    if (mAppCreatedShareHandle)
    {
        ID3D11Resource *tempResource11;
        HRESULT result = device->OpenSharedResource(mShareHandle, __uuidof(ID3D11Resource), (void**)&tempResource11);

        if (FAILED(result))
        {
            ERR("Failed to open the swap chain pbuffer share handle: %08lX", result);
            release();
            return EGL_BAD_PARAMETER;
        }

        result = tempResource11->QueryInterface(__uuidof(ID3D11Texture2D), (void**)&mOffscreenTexture);
        tempResource11->Release();

        if (FAILED(result))
        {
            ERR("Failed to query texture2d interface in pbuffer share handle: %08lX", result);
            release();
            return EGL_BAD_PARAMETER;
        }

        // Validate offscreen texture parameters
        D3D11_TEXTURE2D_DESC offscreenTextureDesc = {0};
        mOffscreenTexture->GetDesc(&offscreenTextureDesc);

        if (offscreenTextureDesc.Width != (UINT)backbufferWidth
            || offscreenTextureDesc.Height != (UINT)backbufferHeight
            || offscreenTextureDesc.Format != gl_d3d11::ConvertRenderbufferFormat(mBackBufferFormat)
            || offscreenTextureDesc.MipLevels != 1
            || offscreenTextureDesc.ArraySize != 1)
        {
            ERR("Invalid texture parameters in the shared offscreen texture pbuffer");
            release();
            return EGL_BAD_PARAMETER;
        }
    }
    else
    {
        const bool useSharedResource = !mWindow && mRenderer->getShareHandleSupport();

        D3D11_TEXTURE2D_DESC offscreenTextureDesc = {0};
        offscreenTextureDesc.Width = backbufferWidth;
        offscreenTextureDesc.Height = backbufferHeight;
        offscreenTextureDesc.Format = gl_d3d11::ConvertRenderbufferFormat(mBackBufferFormat);
        offscreenTextureDesc.MipLevels = 1;
        offscreenTextureDesc.ArraySize = 1;
        offscreenTextureDesc.SampleDesc.Count = 1;
        offscreenTextureDesc.SampleDesc.Quality = 0;
        offscreenTextureDesc.Usage = D3D11_USAGE_DEFAULT;
        offscreenTextureDesc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
        offscreenTextureDesc.CPUAccessFlags = 0;
        offscreenTextureDesc.MiscFlags = useSharedResource ? D3D11_RESOURCE_MISC_SHARED : 0;

        HRESULT result = device->CreateTexture2D(&offscreenTextureDesc, NULL, &mOffscreenTexture);

        if (FAILED(result))
        {
            ERR("Could not create offscreen texture: %08lX", result);
            release();

            if (d3d11::isDeviceLostError(result))
            {
                return EGL_CONTEXT_LOST;
            }
            else
            {
                return EGL_BAD_ALLOC;
            }
        }

        d3d11::SetDebugName(mOffscreenTexture, "Offscreen texture");

        // EGL_ANGLE_surface_d3d_texture_2d_share_handle requires that we store a share handle for the client
        if (useSharedResource)
        {
            IDXGIResource *offscreenTextureResource = NULL;
            result = mOffscreenTexture->QueryInterface(__uuidof(IDXGIResource), (void**)&offscreenTextureResource);

            // Fall back to no share handle on failure
            if (FAILED(result))
            {
                ERR("Could not query offscreen texture resource: %08lX", result);
            }
            else
            {
                result = offscreenTextureResource->GetSharedHandle(&mShareHandle);
                offscreenTextureResource->Release();

                if (FAILED(result))
                {
                    mShareHandle = NULL;
                    ERR("Could not get offscreen texture shared handle: %08lX", result);
                }
            }
        }
    }
        
    HRESULT result = device->CreateRenderTargetView(mOffscreenTexture, NULL, &mOffscreenRTView);

    ASSERT(SUCCEEDED(result));
    d3d11::SetDebugName(mOffscreenRTView, "Offscreen render target");

    result = device->CreateShaderResourceView(mOffscreenTexture, NULL, &mOffscreenSRView);
    ASSERT(SUCCEEDED(result));
    d3d11::SetDebugName(mOffscreenSRView, "Offscreen shader resource");

    if (mDepthBufferFormat != GL_NONE)
    {
        D3D11_TEXTURE2D_DESC depthStencilDesc = {0};
        depthStencilDesc.Width = backbufferWidth;
        depthStencilDesc.Height = backbufferHeight;
        depthStencilDesc.Format = gl_d3d11::ConvertRenderbufferFormat(mDepthBufferFormat);
        depthStencilDesc.MipLevels = 1;
        depthStencilDesc.ArraySize = 1;
        depthStencilDesc.SampleDesc.Count = 1;
        depthStencilDesc.SampleDesc.Quality = 0;
        depthStencilDesc.Usage = D3D11_USAGE_DEFAULT;
        depthStencilDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
        depthStencilDesc.CPUAccessFlags = 0;
        depthStencilDesc.MiscFlags = 0;

        result = device->CreateTexture2D(&depthStencilDesc, NULL, &mDepthStencilTexture);
        if (FAILED(result))
        {
            ERR("Could not create depthstencil surface for new swap chain: 0x%08X", result);
            release();

            if (d3d11::isDeviceLostError(result))
            {
                return EGL_CONTEXT_LOST;
            }
            else
            {
                return EGL_BAD_ALLOC;
            }
        }
        d3d11::SetDebugName(mDepthStencilTexture, "Depth stencil texture");

        result = device->CreateDepthStencilView(mDepthStencilTexture, NULL, &mDepthStencilDSView);
        ASSERT(SUCCEEDED(result));
        d3d11::SetDebugName(mDepthStencilDSView, "Depth stencil view");
    }

    mWidth = backbufferWidth;
    mHeight = backbufferHeight;

    if (previousOffscreenTexture != NULL)
    {
        D3D11_BOX sourceBox = {0};
        sourceBox.left = 0;
        sourceBox.right = std::min(previousWidth, mWidth);
        sourceBox.top = std::max(previousHeight - mHeight, 0);
        sourceBox.bottom = previousHeight;
        sourceBox.front = 0;
        sourceBox.back = 1;

        ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
        const int yoffset = std::max(mHeight - previousHeight, 0);
        deviceContext->CopySubresourceRegion(mOffscreenTexture, 0, 0, yoffset, 0, previousOffscreenTexture, 0, &sourceBox);

        previousOffscreenTexture->Release();

        if (mSwapChain)
        {
            swapRect(0, 0, mWidth, mHeight);
        }
    }

    return EGL_SUCCESS;
}
Example #2
0
EGLint SwapChain11::reset(int backbufferWidth, int backbufferHeight, EGLint swapInterval)
{
    ID3D11Device *device = mRenderer->getDevice();

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

    // Release specific resources to free up memory for the new render target, while the
    // old render target still exists for the purpose of preserving its contents.
    if (mSwapChain)
    {
        mSwapChain->Release();
        mSwapChain = NULL;
    }

    if (mBackBufferTexture)
    {
        mBackBufferTexture->Release();
        mBackBufferTexture = NULL;
    }

    if (mBackBufferRTView)
    {
        mBackBufferRTView->Release();
        mBackBufferRTView = NULL;
    }

    mSwapInterval = static_cast<unsigned int>(swapInterval);
    if (mSwapInterval > 4)
    {
        // IDXGISwapChain::Present documentation states that valid sync intervals are in the [0,4] range
        return EGL_BAD_PARAMETER;
    }

    // EGL allows creating a surface with 0x0 dimension, however, DXGI does not like 0x0 swapchains
    if (backbufferWidth < 1 || backbufferHeight < 1)
    {
        releaseOffscreenTexture();
        return EGL_SUCCESS;
    }

    if (mWindow)
    {
        // We cannot create a swap chain for an HWND that is owned by a different process
        DWORD currentProcessId = GetCurrentProcessId();
        DWORD wndProcessId;
        GetWindowThreadProcessId(mWindow, &wndProcessId);

        if (currentProcessId != wndProcessId)
        {
            ERR("Could not create swap chain, window owned by different process");
            release();
            return EGL_BAD_NATIVE_WINDOW;
        }

        IDXGIFactory *factory = mRenderer->getDxgiFactory();

        DXGI_SWAP_CHAIN_DESC swapChainDesc = {0};
        swapChainDesc.BufferCount = 2;
        swapChainDesc.BufferDesc.Format = gl_d3d11::ConvertRenderbufferFormat(mBackBufferFormat);
        swapChainDesc.BufferDesc.Width = backbufferWidth;
        swapChainDesc.BufferDesc.Height = backbufferHeight;
        swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
        swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
        swapChainDesc.BufferDesc.RefreshRate.Numerator = 0;
        swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
        swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
        swapChainDesc.Flags = 0;
        swapChainDesc.OutputWindow = mWindow;
        swapChainDesc.SampleDesc.Count = 1;
        swapChainDesc.SampleDesc.Quality = 0;
        swapChainDesc.Windowed = TRUE;

        HRESULT result = factory->CreateSwapChain(device, &swapChainDesc, &mSwapChain);

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

            if (d3d11::isDeviceLostError(result))
            {
                return EGL_CONTEXT_LOST;
            }
            else
            {
                return EGL_BAD_ALLOC;
            }
        }

        result = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&mBackBufferTexture);
        ASSERT(SUCCEEDED(result));
        d3d11::SetDebugName(mBackBufferTexture, "Back buffer texture");

        result = device->CreateRenderTargetView(mBackBufferTexture, NULL, &mBackBufferRTView);
        ASSERT(SUCCEEDED(result));
        d3d11::SetDebugName(mBackBufferRTView, "Back buffer render target");
    }

    // If we are resizing the swap chain, we don't wish to recreate all the static resources
    if (!mPassThroughResourcesInit)
    {
        mPassThroughResourcesInit = true;
        initPassThroughResources();
    }

    return resetOffscreenTexture(backbufferWidth, backbufferHeight);
}
Example #3
0
EGLint SwapChain11::reset(int backbufferWidth, int backbufferHeight, EGLint swapInterval)
{
    ID3D11Device *device = mRenderer->getDevice();

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

    // Release specific resources to free up memory for the new render target, while the
    // old render target still exists for the purpose of preserving its contents.
    SafeRelease(mSwapChain);
    SafeRelease(mBackBufferTexture);
    SafeRelease(mBackBufferRTView);

    mSwapInterval = static_cast<unsigned int>(swapInterval);
    if (mSwapInterval > 4)
    {
        // IDXGISwapChain::Present documentation states that valid sync intervals are in the [0,4] range
        return EGL_BAD_PARAMETER;
    }

    // EGL allows creating a surface with 0x0 dimension, however, DXGI does not like 0x0 swapchains
    if (backbufferWidth < 1 || backbufferHeight < 1)
    {
        releaseOffscreenTexture();
        return EGL_SUCCESS;
    }

    if (mNativeWindow.getNativeWindow())
    {
        const d3d11::TextureFormat &backbufferFormatInfo = d3d11::GetTextureFormatInfo(mBackBufferFormat, mRenderer->getFeatureLevel());

        HRESULT result = mNativeWindow.createSwapChain(device, mRenderer->getDxgiFactory(),
                                               backbufferFormatInfo.texFormat,
                                               backbufferWidth, backbufferHeight, &mSwapChain);

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

            if (d3d11::isDeviceLostError(result))
            {
                return EGL_CONTEXT_LOST;
            }
            else
            {
                return EGL_BAD_ALLOC;
            }
        }

        result = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&mBackBufferTexture);
        ASSERT(SUCCEEDED(result));
        d3d11::SetDebugName(mBackBufferTexture, "Back buffer texture");

        result = device->CreateRenderTargetView(mBackBufferTexture, NULL, &mBackBufferRTView);
        ASSERT(SUCCEEDED(result));
        d3d11::SetDebugName(mBackBufferRTView, "Back buffer render target");
    }

    // If we are resizing the swap chain, we don't wish to recreate all the static resources
    if (!mPassThroughResourcesInit)
    {
        mPassThroughResourcesInit = true;
        initPassThroughResources();
    }

    return resetOffscreenTexture(backbufferWidth, backbufferHeight);
}