kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/Trim11.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/Trim11.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.
  //
  
  // Trim11.cpp: Trim support utility class.
  
  #include "libANGLE/renderer/d3d/d3d11/Trim11.h"
  #include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
  #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
  
  #if defined (ANGLE_ENABLE_WINDOWS_STORE)
  #include <wrl.h>
  #include <wrl/wrappers/corewrappers.h>
  #include <windows.applicationmodel.core.h>
  using namespace Microsoft::WRL;
  using namespace Microsoft::WRL::Wrappers;
  using namespace ABI::Windows::ApplicationModel;
  using namespace ABI::Windows::ApplicationModel::Core;
  using namespace ABI::Windows::Foundation;
  using namespace ABI::Windows::Foundation::Collections;
  #endif
  
  namespace rx
  {
  
  Trim11::Trim11(rx::Renderer11 *renderer)
      : mRenderer(renderer)
  {
      bool result = true;
      result = registerForRendererTrimRequest();
      ASSERT(result);
  }
  
  Trim11::~Trim11()
  {
      unregisterForRendererTrimRequest();
  }
  
  void Trim11::trim()
  {
      if (!mRenderer)
      {
          return;
      }
  
  #if defined (ANGLE_ENABLE_WINDOWS_STORE)
      ID3D11Device* device = mRenderer->getDevice();
      // IDXGIDevice3 is only supported on Windows 8.1 and Windows Phone 8.1 and above.
      IDXGIDevice3 *dxgiDevice3 = d3d11::DynamicCastComObject<IDXGIDevice3>(device);
      if (dxgiDevice3)
      {
          dxgiDevice3->Trim();
      }
      SafeRelease(dxgiDevice3);
  #endif
  }
  
  bool Trim11::registerForRendererTrimRequest()
  {
  #if defined (ANGLE_ENABLE_WINDOWS_STORE)
      ICoreApplication* coreApplication = nullptr;
      HRESULT result = GetActivationFactory(HStringReference(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication).Get(), &coreApplication);
      if (SUCCEEDED(result))
      {
          auto suspendHandler = Callback<IEventHandler<SuspendingEventArgs*>>(
              [this](IInspectable*, ISuspendingEventArgs*) -> HRESULT
          {
              trim();
              return S_OK;
          });
          result = coreApplication->add_Suspending(suspendHandler.Get(), &mApplicationSuspendedEventToken);
      }
      SafeRelease(coreApplication);
  
      if (FAILED(result))
      {
          return false;
      }
  #endif
      return true;
  }
  
  void Trim11::unregisterForRendererTrimRequest()
  {
  #if defined (ANGLE_ENABLE_WINDOWS_STORE)
      if (mApplicationSuspendedEventToken.value != 0)
      {
          ICoreApplication* coreApplication = nullptr;
          if (SUCCEEDED(GetActivationFactory(HStringReference(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication).Get(), &coreApplication)))
          {
              coreApplication->remove_Suspending(mApplicationSuspendedEventToken);
          }
          mApplicationSuspendedEventToken.value = 0;
          SafeRelease(coreApplication);
      }
  #endif
  }
  
  }
  

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