1 files changed, 384 insertions, 0 deletions
diff --git a/Tests/VSWinStorePhone/Direct3DApp1/Direct3DBase.cpp b/Tests/VSWinStorePhone/Direct3DApp1/Direct3DBase.cpp
new file mode 100644
index 0000000..46727b5
--- /dev/null
+++ b/Tests/VSWinStorePhone/Direct3DApp1/Direct3DBase.cpp
@@ -0,0 +1,384 @@
+#include "pch.h"
+#include "Direct3DBase.h"
+
+using namespace DirectX;
+using namespace Microsoft::WRL;
+using namespace Windows::UI::Core;
+using namespace Windows::Foundation;
+using namespace Windows::Graphics::Display;
+
+// Constructor.
+Direct3DBase::Direct3DBase()
+{
+}
+
+// Initialize the Direct3D resources required to run.
+void Direct3DBase::Initialize(CoreWindow^ window)
+{
+  m_window = window;
+
+  CreateDeviceResources();
+  CreateWindowSizeDependentResources();
+}
+
+// Recreate all device resources and set them back to the current state.
+void Direct3DBase::HandleDeviceLost()
+{
+  // Reset these member variables to ensure that UpdateForWindowSizeChange recreates all resources.
+  m_windowBounds.Width = 0;
+  m_windowBounds.Height = 0;
+  m_swapChain = nullptr;
+
+  CreateDeviceResources();
+  UpdateForWindowSizeChange();
+}
+
+// These are the resources that depend on the device.
+void Direct3DBase::CreateDeviceResources()
+{
+  // This flag adds support for surfaces with a different color channel ordering
+  // than the API default. It is required for compatibility with Direct2D.
+  UINT creationFlags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
+
+#if defined(_DEBUG)
+  // If the project is in a debug build, enable debugging via SDK Layers with this flag.
+  creationFlags |= D3D11_CREATE_DEVICE_DEBUG;
+#endif
+
+  // This array defines the set of DirectX hardware feature levels this app will support.
+  // Note the ordering should be preserved.
+  // Don't forget to declare your application's minimum required feature level in its
+  // description.  All applications are assumed to support 9.1 unless otherwise stated.
+  D3D_FEATURE_LEVEL featureLevels[] =
+  {
+    D3D_FEATURE_LEVEL_11_1,
+    D3D_FEATURE_LEVEL_11_0,
+    D3D_FEATURE_LEVEL_10_1,
+    D3D_FEATURE_LEVEL_10_0,
+    D3D_FEATURE_LEVEL_9_3,
+    D3D_FEATURE_LEVEL_9_2,
+    D3D_FEATURE_LEVEL_9_1
+  };
+
+  // Create the Direct3D 11 API device object and a corresponding context.
+  ComPtr<ID3D11Device> device;
+  ComPtr<ID3D11DeviceContext> context;
+  DX::ThrowIfFailed(
+    D3D11CreateDevice(
+      nullptr, // Specify nullptr to use the default adapter.
+      D3D_DRIVER_TYPE_HARDWARE,
+      nullptr,
+      creationFlags, // Set set debug and Direct2D compatibility flags.
+      featureLevels, // List of feature levels this app can support.
+      ARRAYSIZE(featureLevels),
+      D3D11_SDK_VERSION, // Always set this to D3D11_SDK_VERSION for Windows Store apps.
+      &device, // Returns the Direct3D device created.
+      &m_featureLevel, // Returns feature level of device created.
+      &context // Returns the device immediate context.
+      )
+    );
+
+  // Get the Direct3D 11.1 API device and context interfaces.
+  DX::ThrowIfFailed(
+    device.As(&m_d3dDevice)
+    );
+
+  DX::ThrowIfFailed(
+    context.As(&m_d3dContext)
+    );
+}
+
+// Allocate all memory resources that change on a window SizeChanged event.
+void Direct3DBase::CreateWindowSizeDependentResources()
+{
+  // Store the window bounds so the next time we get a SizeChanged event we can
+  // avoid rebuilding everything if the size is identical.
+  m_windowBounds = m_window->Bounds;
+
+  // Calculate the necessary swap chain and render target size in pixels.
+  float windowWidth = ConvertDipsToPixels(m_windowBounds.Width);
+  float windowHeight = ConvertDipsToPixels(m_windowBounds.Height);
+
+  // The width and height of the swap chain must be based on the window's
+  // landscape-oriented width and height. If the window is in a portrait
+  // orientation, the dimensions must be reversed.
+#if WINVER > 0x0602
+  m_orientation = DisplayInformation::GetForCurrentView()->CurrentOrientation;
+#else
+#if PHONE
+  // WP8 doesn't support rotations so always make it landscape
+  m_orientation = DisplayOrientations::Landscape;
+#else
+  m_orientation = DisplayProperties::CurrentOrientation;
+#endif
+#endif
+  bool swapDimensions =
+    m_orientation == DisplayOrientations::Portrait ||
+    m_orientation == DisplayOrientations::PortraitFlipped;
+  m_renderTargetSize.Width = swapDimensions ? windowHeight : windowWidth;
+  m_renderTargetSize.Height = swapDimensions ? windowWidth : windowHeight;
+
+  if(m_swapChain != nullptr)
+  {
+    // If the swap chain already exists, resize it.
+    DX::ThrowIfFailed(
+      m_swapChain->ResizeBuffers(
+        2, // Double-buffered swap chain.
+        static_cast<UINT>(m_renderTargetSize.Width),
+        static_cast<UINT>(m_renderTargetSize.Height),
+        DXGI_FORMAT_B8G8R8A8_UNORM,
+        0
+        )
+      );
+  }
+  else
+  {
+    // Otherwise, create a new one using the same adapter as the existing Direct3D device.
+    DXGI_SWAP_CHAIN_DESC1 swapChainDesc = {0};
+    swapChainDesc.Width = static_cast<UINT>(m_renderTargetSize.Width); // Match the size of the window.
+    swapChainDesc.Height = static_cast<UINT>(m_renderTargetSize.Height);
+    swapChainDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM; // This is the most common swap chain format.
+    swapChainDesc.Stereo = false;
+    swapChainDesc.SampleDesc.Count = 1; // Don't use multi-sampling.
+    swapChainDesc.SampleDesc.Quality = 0;
+    swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+#if PHONE && WINVER <= 0x0602
+    swapChainDesc.BufferCount = 1; // Use double-buffering to minimize latency.
+    swapChainDesc.Scaling = DXGI_SCALING_STRETCH; // On phone, only stretch and aspect-ratio stretch scaling are allowed.
+    swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; // On phone, no swap effects are supported.
+#else
+    swapChainDesc.BufferCount = 2; // Use double-buffering to minimize latency.
+    swapChainDesc.Scaling = DXGI_SCALING_NONE;
+    swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL; // All Windows Store apps must use this SwapEffect.
+#endif
+    swapChainDesc.Flags = 0;
+
+    ComPtr<IDXGIDevice1>  dxgiDevice;
+    DX::ThrowIfFailed(
+      m_d3dDevice.As(&dxgiDevice)
+      );
+
+    ComPtr<IDXGIAdapter> dxgiAdapter;
+    DX::ThrowIfFailed(
+      dxgiDevice->GetAdapter(&dxgiAdapter)
+      );
+
+    ComPtr<IDXGIFactory2> dxgiFactory;
+    DX::ThrowIfFailed(
+      dxgiAdapter->GetParent(
+        __uuidof(IDXGIFactory2),
+        &dxgiFactory
+        )
+      );
+
+    Windows::UI::Core::CoreWindow^ window = m_window.Get();
+    DX::ThrowIfFailed(
+      dxgiFactory->CreateSwapChainForCoreWindow(
+        m_d3dDevice.Get(),
+        reinterpret_cast<IUnknown*>(window),
+        &swapChainDesc,
+        nullptr, // Allow on all displays.
+        &m_swapChain
+        )
+      );
+
+    // Ensure that DXGI does not queue more than one frame at a time. This both reduces latency and
+    // ensures that the application will only render after each VSync, minimizing power consumption.
+    DX::ThrowIfFailed(
+      dxgiDevice->SetMaximumFrameLatency(1)
+      );
+  }
+
+  // Set the proper orientation for the swap chain, and generate the
+  // 3D matrix transformation for rendering to the rotated swap chain.
+  DXGI_MODE_ROTATION rotation = DXGI_MODE_ROTATION_UNSPECIFIED;
+  switch (m_orientation)
+  {
+    case DisplayOrientations::Landscape:
+      rotation = DXGI_MODE_ROTATION_IDENTITY;
+      m_orientationTransform3D = XMFLOAT4X4( // 0-degree Z-rotation
+        1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 1.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+      break;
+
+    case DisplayOrientations::Portrait:
+      rotation = DXGI_MODE_ROTATION_ROTATE270;
+      m_orientationTransform3D = XMFLOAT4X4( // 90-degree Z-rotation
+        0.0f, 1.0f, 0.0f, 0.0f,
+        -1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+      break;
+
+    case DisplayOrientations::LandscapeFlipped:
+      rotation = DXGI_MODE_ROTATION_ROTATE180;
+      m_orientationTransform3D = XMFLOAT4X4( // 180-degree Z-rotation
+        -1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, -1.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+      break;
+
+    case DisplayOrientations::PortraitFlipped:
+      rotation = DXGI_MODE_ROTATION_ROTATE90;
+      m_orientationTransform3D = XMFLOAT4X4( // 270-degree Z-rotation
+        0.0f, -1.0f, 0.0f, 0.0f,
+        1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f
+        );
+      break;
+
+    default:
+      throw ref new Platform::FailureException();
+  }
+
+#if !PHONE || WINVER > 0x0602
+  DX::ThrowIfFailed(
+    m_swapChain->SetRotation(rotation)
+    );
+#endif // !PHONE
+
+  // Create a render target view of the swap chain back buffer.
+  ComPtr<ID3D11Texture2D> backBuffer;
+  DX::ThrowIfFailed(
+    m_swapChain->GetBuffer(
+      0,
+      __uuidof(ID3D11Texture2D),
+      &backBuffer
+      )
+    );
+
+  DX::ThrowIfFailed(
+    m_d3dDevice->CreateRenderTargetView(
+      backBuffer.Get(),
+      nullptr,
+      &m_renderTargetView
+      )
+    );
+
+  // Create a depth stencil view.
+  CD3D11_TEXTURE2D_DESC depthStencilDesc(
+    DXGI_FORMAT_D24_UNORM_S8_UINT,
+    static_cast<UINT>(m_renderTargetSize.Width),
+    static_cast<UINT>(m_renderTargetSize.Height),
+    1,
+    1,
+    D3D11_BIND_DEPTH_STENCIL
+    );
+
+  ComPtr<ID3D11Texture2D> depthStencil;
+  DX::ThrowIfFailed(
+    m_d3dDevice->CreateTexture2D(
+      &depthStencilDesc,
+      nullptr,
+      &depthStencil
+      )
+    );
+
+  CD3D11_DEPTH_STENCIL_VIEW_DESC depthStencilViewDesc(D3D11_DSV_DIMENSION_TEXTURE2D);
+  DX::ThrowIfFailed(
+    m_d3dDevice->CreateDepthStencilView(
+      depthStencil.Get(),
+      &depthStencilViewDesc,
+      &m_depthStencilView
+      )
+    );
+
+  // Set the rendering viewport to target the entire window.
+  CD3D11_VIEWPORT viewport(
+    0.0f,
+    0.0f,
+    m_renderTargetSize.Width,
+    m_renderTargetSize.Height
+    );
+
+  m_d3dContext->RSSetViewports(1, &viewport);
+}
+
+// This method is called in the event handler for the SizeChanged event.
+void Direct3DBase::UpdateForWindowSizeChange()
+{
+  if (m_window->Bounds.Width != m_windowBounds.Width ||
+    m_window->Bounds.Height != m_windowBounds.Height ||
+#if WINVER > 0x0602
+    m_orientation != DisplayInformation::GetForCurrentView()->CurrentOrientation)
+#else
+    m_orientation != DisplayProperties::CurrentOrientation)
+#endif
+  {
+    ID3D11RenderTargetView* nullViews[] = {nullptr};
+    m_d3dContext->OMSetRenderTargets(ARRAYSIZE(nullViews), nullViews, nullptr);
+    m_renderTargetView = nullptr;
+    m_depthStencilView = nullptr;
+    m_d3dContext->Flush();
+    CreateWindowSizeDependentResources();
+  }
+}
+
+void Direct3DBase::ReleaseResourcesForSuspending()
+{
+  // Phone applications operate in a memory-constrained environment, so when entering
+  // the background it is a good idea to free memory-intensive objects that will be
+  // easy to restore upon reactivation. The swapchain and backbuffer are good candidates
+  // here, as they consume a large amount of memory and can be reinitialized quickly.
+  m_swapChain = nullptr;
+  m_renderTargetView = nullptr;
+  m_depthStencilView = nullptr;
+}
+
+// Method to deliver the final image to the display.
+void Direct3DBase::Present()
+{
+  // The first argument instructs DXGI to block until VSync, putting the application
+  // to sleep until the next VSync. This ensures we don't waste any cycles rendering
+  // frames that will never be displayed to the screen.
+#if PHONE && WINVER <= 0x0602
+  HRESULT hr = m_swapChain->Present(1, 0);
+#else
+  // The application may optionally specify "dirty" or "scroll"
+  // rects to improve efficiency in certain scenarios.
+  DXGI_PRESENT_PARAMETERS parameters = { 0 };
+  parameters.DirtyRectsCount = 0;
+  parameters.pDirtyRects = nullptr;
+  parameters.pScrollRect = nullptr;
+  parameters.pScrollOffset = nullptr;
+
+  HRESULT hr = m_swapChain->Present1(1, 0 , &parameters);
+#endif
+
+  // Discard the contents of the render target.
+  // This is a valid operation only when the existing contents will be entirely
+  // overwritten. If dirty or scroll rects are used, this call should be removed.
+  m_d3dContext->DiscardView(m_renderTargetView.Get());
+
+  // Discard the contents of the depth stencil.
+  m_d3dContext->DiscardView(m_depthStencilView.Get());
+
+  // If the device was removed either by a disconnect or a driver upgrade, we
+  // must recreate all device resources.
+  if (hr == DXGI_ERROR_DEVICE_REMOVED)
+  {
+    HandleDeviceLost();
+  }
+  else
+  {
+    DX::ThrowIfFailed(hr);
+  }
+}
+
+// Method to convert a length in device-independent pixels (DIPs) to a length in physical pixels.
+float Direct3DBase::ConvertDipsToPixels(float dips)
+{
+  static const float dipsPerInch = 96.0f;
+#if WINVER > 0x0602
+  return floor(dips * DisplayInformation::GetForCurrentView()->LogicalDpi / dipsPerInch + 0.5f); // Round to nearest integer.
+#else
+  return floor(dips * DisplayProperties::LogicalDpi / dipsPerInch + 0.5f); // Round to nearest integer.
+#endif
+}