kc3-lang/angle/src/libANGLE/renderer/d3d/DeviceD3D.cpp

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• Hash : 540a1dfe
  Author :
  Date : 2018-01-08T17:22:55
  

  Refactor DeviceImpl creation.
  
  Add an initialize function to match other impl objects and simplify the
  creation of DeviceImpls.
  
  BUG=742034
  
  Change-Id: I569c8252d5d23c8af98835f6c08e7a3b640fc3f3
  Reviewed-on: https://chromium-review.googlesource.com/854626
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/d3d/DeviceD3D.cpp

• //
  // Copyright (c) 2015 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.
  //
  
  // DeviceD3D.cpp: D3D implementation of egl::Device
  
  #include "libANGLE/renderer/d3d/DeviceD3D.h"
  #include "libANGLE/renderer/d3d/RendererD3D.h"
  
  #include "libANGLE/Device.h"
  #include "libANGLE/Display.h"
  
  #include <EGL/eglext.h>
  
  namespace rx
  {
  
  DeviceD3D::DeviceD3D(GLint deviceType, void *nativeDevice)
      : mDevice(nativeDevice), mDeviceType(deviceType), mIsInitialized(false)
  {
  }
  
  DeviceD3D::~DeviceD3D()
  {
  #if defined(ANGLE_ENABLE_D3D11)
      if (mIsInitialized && mDeviceType == EGL_D3D11_DEVICE_ANGLE)
      {
          // DeviceD3D holds a ref to an externally-sourced D3D11 device. We must release it.
          ID3D11Device *device = reinterpret_cast<ID3D11Device *>(mDevice);
          device->Release();
      }
  #endif
  }
  
  egl::Error DeviceD3D::getDevice(void **outValue)
  {
      ASSERT(mIsInitialized);
      *outValue = mDevice;
      return egl::NoError();
  }
  
  egl::Error DeviceD3D::initialize()
  {
      ASSERT(!mIsInitialized);
  
  #if defined(ANGLE_ENABLE_D3D11)
      if (mDeviceType == EGL_D3D11_DEVICE_ANGLE)
      {
          // Validate the device
          IUnknown *iunknown = reinterpret_cast<IUnknown *>(mDevice);
  
          ID3D11Device *d3dDevice = nullptr;
          HRESULT hr =
              iunknown->QueryInterface(__uuidof(ID3D11Device), reinterpret_cast<void **>(&d3dDevice));
          if (FAILED(hr))
          {
              return egl::EglBadAttribute() << "Invalid D3D device passed into EGLDeviceEXT";
          }
  
          // The QI to ID3D11Device adds a ref to the D3D11 device.
          // Deliberately don't release the ref here, so that the DeviceD3D holds a ref to the
          // D3D11 device.
      }
  #endif
  
      mIsInitialized = true;
  
      return egl::NoError();
  }
  
  EGLint DeviceD3D::getType()
  {
      return mDeviceType;
  }
  
  void DeviceD3D::generateExtensions(egl::DeviceExtensions *outExtensions) const
  {
      outExtensions->deviceD3D = true;
  }
  
  }
  

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