kc3-lang/angle/util/com_utils.h

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• Author : Cooper Partin
  Date : 2015-04-14 09:08:16
  Hash : 97d61eb5
  Message : Add extension EGL_ANGLE_device_d3d Access to the D3D device is needed for some advanced scenarios. New entry points eglQueryDisplayAttribANGLE and eglQueryDeviceAttribANGLE have been added in this change to implement this extension. BUG=angleproject:935 Change-Id: Ie39e86a2b6c6d8d05a08964b2907fb9fba5dec13 Reviewed-on: https://chromium-review.googlesource.com/265591 Tested-by: Cooper Partin <coopp@microsoft.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• util/com_utils.h

• //
  // 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.
  //
  
  // com_utils.h: Utility functions for working with COM objects
  
  #ifndef UTIL_COM_UTILS_H
  #define UTIL_COM_UTILS_H
  
  template <typename outType>
  inline outType *DynamicCastComObject(IUnknown *object)
  {
      outType *outObject = nullptr;
      HRESULT result = object->QueryInterface(__uuidof(outType), reinterpret_cast<void**>(&outObject));
      if (SUCCEEDED(result))
      {
          return outObject;
      }
      else
      {
          SafeRelease(outObject);
          return nullptr;
      }
  }
  
  #endif // UTIL_COM_UTILS_H