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

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• Hash : fc1a44a1
  Author :
  Date : 2015-12-02T12:37:10
  

  Revert "Revert "Add and implement EGL_ANGLE_device_creation[_d3d11]""
  
  This reverts commit dd5c5b79333fdde7858a77d39e91cc3d30b74c9e.
  
  BUG=angleproject:1190
  
  Change-Id: I1bc1b232b6a916da6d18b546baf20e0854a2768f
  Reviewed-on: https://chromium-review.googlesource.com/315169
  Tested-by: Austin Kinross <aukinros@microsoft.com>
  Reviewed-by: Jamie Madill <jmadill@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()
      : mDevice(0), mDeviceType(0), mDeviceExternallySourced(false), mIsInitialized(false)
  {
  }
  
  DeviceD3D::~DeviceD3D()
  {
  #if defined(ANGLE_ENABLE_D3D11)
      if (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)
  {
      if (!mIsInitialized)
      {
          *outValue = nullptr;
          return egl::Error(EGL_BAD_DEVICE_EXT);
      }
  
      *outValue = mDevice;
      return egl::Error(EGL_SUCCESS);
  }
  
  egl::Error DeviceD3D::initialize(void *device,
                                   EGLint deviceType,
                                   EGLBoolean deviceExternallySourced)
  {
      ASSERT(!mIsInitialized);
      if (mIsInitialized)
      {
          return egl::Error(EGL_BAD_DEVICE_EXT);
      }
  
      mDevice                  = device;
      mDeviceType              = deviceType;
      mDeviceExternallySourced = !!deviceExternallySourced;
  
  #if defined(ANGLE_ENABLE_D3D11)
      if (mDeviceType == EGL_D3D11_DEVICE_ANGLE)
      {
          // Validate the device
          IUnknown *iunknown = reinterpret_cast<IUnknown *>(device);
  
          ID3D11Device *d3dDevice = nullptr;
          HRESULT hr =
              iunknown->QueryInterface(__uuidof(ID3D11Device), reinterpret_cast<void **>(&d3dDevice));
          if (FAILED(hr))
          {
              return egl::Error(EGL_BAD_ATTRIBUTE, "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.
      }
      else
  #endif
      {
          ASSERT(!mDeviceExternallySourced);
      }
  
      mIsInitialized = true;
  
      return egl::Error(EGL_SUCCESS);
  }
  
  EGLint DeviceD3D::getType()
  {
      return mDeviceType;
  }
  
  void DeviceD3D::generateExtensions(egl::DeviceExtensions *outExtensions) const
  {
      outExtensions->deviceD3D = true;
  }
  
  }
  

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