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

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• Hash : b0a53105
  Author :
  Date : 2016-04-01T11:43:54
  

  Add a NativeWindowD3D abstract class to handle native window interactions.
  
  The previous NativeWindow class included D3D11 headers while being included in
  all D3D backds and had platform-dependent includes and members.  This
  turns it into an abstract class that only implements the minimal
  functionality for each renderer.
  
  BUG=angleproject:1345
  
  Change-Id: I8f20339dd6bba719e574a1dcb3ec859897c9228f
  Reviewed-on: https://chromium-review.googlesource.com/336780
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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

• //
  // Copyright (c) 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.cpp: NativeWindow base class for managing IInspectable native window types.
  
  #include "libANGLE/renderer/d3d/d3d11/winrt/CoreWindowNativeWindow.h"
  #include "libANGLE/renderer/d3d/d3d11/winrt/SwapChainPanelNativeWindow.h"
  
  namespace rx
  {
  
  bool IsCoreWindow(EGLNativeWindowType window, ComPtr<ABI::Windows::UI::Core::ICoreWindow> *coreWindow)
  {
      if (!window)
      {
          return false;
      }
  
      ComPtr<IInspectable> win = window;
      ComPtr<ABI::Windows::UI::Core::ICoreWindow> coreWin;
      if (SUCCEEDED(win.As(&coreWin)))
      {
          if (coreWindow != nullptr)
          {
              *coreWindow = coreWin.Detach();
          }
          return true;
      }
  
      return false;
  }
  
  bool IsSwapChainPanel(EGLNativeWindowType window, ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> *swapChainPanel)
  {
      if (!window)
      {
          return false;
      }
  
      ComPtr<IInspectable> win = window;
      ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> panel;
      if (SUCCEEDED(win.As(&panel)))
      {
          if (swapChainPanel != nullptr)
          {
              *swapChainPanel = panel.Detach();
          }
          return true;
      }
  
      return false;
  }
  
  bool IsEGLConfiguredPropertySet(EGLNativeWindowType window, ABI::Windows::Foundation::Collections::IPropertySet **propertySet, IInspectable **eglNativeWindow)
  {
      if (!window)
      {
          return false;
      }
  
      ComPtr<IInspectable> props = window;
      ComPtr<IPropertySet> propSet;
      ComPtr<IInspectable> nativeWindow;
      ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable*>> propMap;
      boolean hasEglNativeWindowPropertyKey = false;
  
      HRESULT result = props.As(&propSet);
      if (SUCCEEDED(result))
      {
          result = propSet.As(&propMap);
      }
  
      // Look for the presence of the EGLNativeWindowType in the property set
      if (SUCCEEDED(result))
      {
          result = propMap->HasKey(HStringReference(EGLNativeWindowTypeProperty).Get(), &hasEglNativeWindowPropertyKey);
      }
  
      // If the IPropertySet does not contain the required EglNativeWindowType key, the property set is
      // considered invalid.
      if (SUCCEEDED(result) && !hasEglNativeWindowPropertyKey)
      {
          ERR("Could not find EGLNativeWindowTypeProperty in IPropertySet. Valid EGLNativeWindowTypeProperty values include ICoreWindow");
          return false;
      }
  
      // The EglNativeWindowType property exists, so retreive the IInspectable that represents the EGLNativeWindowType
      if (SUCCEEDED(result) && hasEglNativeWindowPropertyKey)
      {
          result = propMap->Lookup(HStringReference(EGLNativeWindowTypeProperty).Get(), &nativeWindow);
      }
  
      if (SUCCEEDED(result))
      {
          if (propertySet != nullptr)
          {
              result = propSet.CopyTo(propertySet);
          }
      }
  
      if (SUCCEEDED(result))
      {
          if (eglNativeWindow != nullptr)
          {
              result = nativeWindow.CopyTo(eglNativeWindow);
          }
      }
  
      if (SUCCEEDED(result))
      {
          return true;
      }
  
      return false;
  }
  
  // Retrieve an optional property from a property set
  HRESULT GetOptionalPropertyValue(const ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable*>> &propertyMap,
                                   const wchar_t *propertyName,
                                   boolean *hasKey,
                                   ComPtr<ABI::Windows::Foundation::IPropertyValue> &propertyValue)
  {
      if (!propertyMap || !hasKey)
      {
          return E_INVALIDARG;
      }
  
      // Assume that the value does not exist
      *hasKey = false;
  
      HRESULT result = propertyMap->HasKey(HStringReference(propertyName).Get(), hasKey);
      if (SUCCEEDED(result) && !(*hasKey))
      {
          // Value does not exist, so return S_OK and set the exists parameter to false to indicate
          // that a the optional property does not exist.
          return S_OK;
      }
  
      if (SUCCEEDED(result))
      {
          result = propertyMap->Lookup(HStringReference(propertyName).Get(), &propertyValue);
      }
  
      return result;
  }
  
  // Attempts to read an optional SIZE property value that is assumed to be in the form of
  // an ABI::Windows::Foundation::Size.  This function validates the Size value before returning
  // it to the caller.
  //
  // Possible return values are:
  // S_OK, valueExists == true - optional SIZE value was successfully retrieved and validated
  // S_OK, valueExists == false - optional SIZE value was not found
  // E_INVALIDARG, valueExists = false - optional SIZE value was malformed in the property set.
  //    * Incorrect property type ( must be PropertyType_Size)
  //    * Invalid property value (width/height must be > 0)
  // Additional errors may be returned from IMap or IPropertyValue
  //
  HRESULT GetOptionalSizePropertyValue(const ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable*>> &propertyMap,
                                       const wchar_t *propertyName, SIZE *value, bool *valueExists)
  {
      ComPtr<ABI::Windows::Foundation::IPropertyValue> propertyValue;
      ABI::Windows::Foundation::PropertyType propertyType = ABI::Windows::Foundation::PropertyType::PropertyType_Empty;
      Size sizeValue = { 0, 0 };
      boolean hasKey = false;
  
      if (!propertyMap || !value || !valueExists)
      {
          return E_INVALIDARG;
      }
  
      // Assume that the value does not exist
      *valueExists = false;
      *value = { 0, 0 };
  
      HRESULT result = GetOptionalPropertyValue(propertyMap, propertyName, &hasKey, propertyValue);
      if (SUCCEEDED(result) && hasKey)
      {
          result = propertyValue->get_Type(&propertyType);
  
          // Check if the expected Size property is of PropertyType_Size type.
          if (SUCCEEDED(result) && propertyType == ABI::Windows::Foundation::PropertyType::PropertyType_Size)
          {
              if (SUCCEEDED(propertyValue->GetSize(&sizeValue)) && (sizeValue.Width > 0 && sizeValue.Height > 0))
              {
                  // A valid property value exists
                  *value = { static_cast<long>(sizeValue.Width), static_cast<long>(sizeValue.Height) };
                  *valueExists = true;
                  result = S_OK;
              }
              else
              {
                  // An invalid Size property was detected. Width/Height values must > 0
                  result = E_INVALIDARG;
              }
          }
          else
          {
              // An invalid property type was detected. Size property must be of PropertyType_Size
              result = E_INVALIDARG;
          }
      }
  
      return result;
  }
  
  // Attempts to read an optional float property value that is assumed to be in the form of
  // an ABI::Windows::Foundation::Single.  This function validates the Single value before returning
  // it to the caller.
  //
  // Possible return values are:
  // S_OK, valueExists == true - optional Single value was successfully retrieved and validated
  // S_OK, valueExists == false - optional Single value was not found
  // E_INVALIDARG, valueExists = false - optional Single value was malformed in the property set.
  //    * Incorrect property type ( must be PropertyType_Single)
  //    * Invalid property value (must be > 0)
  // Additional errors may be returned from IMap or IPropertyValue
  //
  HRESULT GetOptionalSinglePropertyValue(const ComPtr<ABI::Windows::Foundation::Collections::IMap<HSTRING, IInspectable*>> &propertyMap,
                                         const wchar_t *propertyName, float *value, bool *valueExists)
  {
      ComPtr<ABI::Windows::Foundation::IPropertyValue> propertyValue;
      ABI::Windows::Foundation::PropertyType propertyType = ABI::Windows::Foundation::PropertyType::PropertyType_Empty;
      float scaleValue = 0.0f;
      boolean hasKey = false;
  
      if (!propertyMap || !value || !valueExists)
      {
          return E_INVALIDARG;
      }
  
      // Assume that the value does not exist
      *valueExists = false;
      *value = 0.0f;
  
      HRESULT result = GetOptionalPropertyValue(propertyMap, propertyName, &hasKey, propertyValue);
      if (SUCCEEDED(result) && hasKey)
      {
          result = propertyValue->get_Type(&propertyType);
  
          // Check if the expected Scale property is of PropertyType_Single type.
          if (SUCCEEDED(result) && propertyType == ABI::Windows::Foundation::PropertyType::PropertyType_Single)
          {
              if (SUCCEEDED(propertyValue->GetSingle(&scaleValue)) && (scaleValue > 0.0f))
              {
                  // A valid property value exists
                  *value = scaleValue;
                  *valueExists = true;
                  result = S_OK;
              }
              else
              {
                  // An invalid scale was set
                  result = E_INVALIDARG;
              }
          }
          else
          {
              // An invalid property type was detected. Size property must be of PropertyType_Single
              result = E_INVALIDARG;
          }
      }
  
      return result;
  }
  
  }
  

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