kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/winrt/InspectableNativeWindow.h

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• Hash : 06d194e2
  Author :
  Date : 2021-01-10T14:29:44
  

  Reland "Add support for building in Flutter Windows UWP configuration"
  
  This is a reland of 68ac4e43aa67c4bac9df639d80079648ea86dbe9
  
  Original change's description:
  > Add support for building in Flutter Windows UWP configuration
  >
  > Bug: angleproject:5527
  > Change-Id: Idf5a4cbb6f84b24fa2448157cab1b6a3bce4d8be
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2620580
  > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  > Commit-Queue: Jamie Madill <jmadill@chromium.org>
  
  Bug: angleproject:5527
  Change-Id: I3d5c3a35d73e3946ae40c779e76e0343039bf660
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2693639
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Austin Eng <enga@chromium.org>
  Commit-Queue: Austin Eng <enga@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d11/winrt/InspectableNativeWindow.h

• //
  // Copyright 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // InspectableNativeWindow.h: Host specific implementation interface for
  // managing IInspectable native window types.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D11_WINRT_INSPECTABLENATIVEWINDOW_H_
  #define LIBANGLE_RENDERER_D3D_D3D11_WINRT_INSPECTABLENATIVEWINDOW_H_
  
  #include "common/debug.h"
  #include "common/platform.h"
  
  #include "angle_windowsstore.h"
  
  #include <EGL/eglplatform.h>
  
  #include <windows.applicationmodel.core.h>
  #undef GetCurrentTime
  #include <windows.ui.xaml.h>
  #include <windows.ui.xaml.media.dxinterop.h>
  #include <wrl.h>
  #include <wrl/wrappers/corewrappers.h>
  
  using namespace Microsoft::WRL;
  using namespace Microsoft::WRL::Wrappers;
  using namespace ABI::Windows::Foundation;
  using namespace ABI::Windows::Foundation::Collections;
  
  namespace rx
  {
  class InspectableNativeWindow
  {
    public:
      InspectableNativeWindow()
          : mSupportsSwapChainResize(true),
            mSwapChainSizeSpecified(false),
            mSwapChainScaleSpecified(false),
            mSwapChainScale(1.0f),
            mClientRectChanged(false),
            mClientRect({0, 0, 0, 0}),
            mNewClientRect({0, 0, 0, 0})
      {
          mSizeChangedEventToken.value = 0;
      }
      virtual ~InspectableNativeWindow() {}
  
      virtual bool initialize(EGLNativeWindowType window, IPropertySet *propertySet) = 0;
      virtual HRESULT createSwapChain(ID3D11Device *device,
                                      IDXGIFactory2 *factory,
                                      DXGI_FORMAT format,
                                      unsigned int width,
                                      unsigned int height,
                                      bool containsAlpha,
                                      IDXGISwapChain1 **swapChain)                   = 0;
  
      bool getClientRect(RECT *rect)
      {
          if (mClientRectChanged)
          {
              mClientRect = mNewClientRect;
          }
  
          *rect = mClientRect;
  
          return true;
      }
  
      // setNewClientSize is used by the WinRT size change handler. It isn't used by the rest of
      // ANGLE.
      void setNewClientSize(const Size &newWindowSize)
      {
          // If the client doesn't support swapchain resizing then we should have already unregistered
          // from size change handler
          ASSERT(mSupportsSwapChainResize);
  
          if (mSupportsSwapChainResize)
          {
              // If the swapchain size was specified then we should ignore this call too
              if (!mSwapChainSizeSpecified)
              {
                  mNewClientRect     = clientRect(newWindowSize);
                  mClientRectChanged = true;
  
                  // If a scale was specified, then now is the time to apply the scale matrix for the
                  // new swapchain size and window size
                  if (mSwapChainScaleSpecified)
                  {
                      scaleSwapChain(newWindowSize, mNewClientRect);
                  }
              }
  
              // Even if the swapchain size was fixed, the window might have changed size.
              // In this case, we should recalculate the scale matrix to account for the new window
              // size
              if (mSwapChainSizeSpecified)
              {
                  scaleSwapChain(newWindowSize, mClientRect);
              }
          }
      }
  
    protected:
      virtual HRESULT scaleSwapChain(const Size &windowSize, const RECT &clientRect) = 0;
      RECT clientRect(const Size &size);
  
      bool mSupportsSwapChainResize;  // Support for IDXGISwapChain::ResizeBuffers method
      bool mSwapChainSizeSpecified;   // If an EGLRenderSurfaceSizeProperty was specified
      bool mSwapChainScaleSpecified;  // If an EGLRenderResolutionScaleProperty was specified
      float mSwapChainScale;  // The scale value specified by the EGLRenderResolutionScaleProperty
                              // property
      RECT mClientRect;
      RECT mNewClientRect;
      bool mClientRectChanged;
  
      EventRegistrationToken mSizeChangedEventToken;
  };
  
  bool IsCoreWindow(EGLNativeWindowType window,
                    ComPtr<ABI::Windows::UI::Core::ICoreWindow> *coreWindow = nullptr);
  bool IsSwapChainPanel(
      EGLNativeWindowType window,
      ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> *swapChainPanel = nullptr);
  bool IsEGLConfiguredPropertySet(
      EGLNativeWindowType window,
      ABI::Windows::Foundation::Collections::IPropertySet **propertySet = nullptr,
      IInspectable **inspectable                                        = nullptr);
  
  HRESULT GetOptionalPropertyValue(
      const ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable *>> &propertyMap,
      const wchar_t *propertyName,
      boolean *hasKey,
      ComPtr<ABI::Windows::Foundation::IPropertyValue> &propertyValue);
  
  HRESULT GetOptionalSizePropertyValue(
      const ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable *>> &propertyMap,
      const wchar_t *propertyName,
      SIZE *value,
      bool *valueExists);
  
  HRESULT GetOptionalSinglePropertyValue(
      const ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable *>> &propertyMap,
      const wchar_t *propertyName,
      float *value,
      bool *valueExists);
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_D3D_D3D11_WINRT_INSPECTABLENATIVEWINDOW_H_
  

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