kc3-lang/angle/src/libANGLE/Device.cpp

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• Hash : ccd9a43b
  Author :
  Date : 2024-05-22T11:15:39
  

  Split EGL_ANGLE_device_d3d into D3D9 and D3D11 versions.
  
  Add EGL_ANGLE_device_d3d9 and EGL_ANGLE_device_d3d11 which make it
  possible to know what type of device can be queried ahead of time
  without generating EGL errors.
  
  Refactor the DeviceD3D class into Device9 and Device11. Remove the
  getType method now that it's not needed for internal validation.
  
  Keep EGL_ANGLE_device_d3d for backwards compatibility.
  
  Bug: angleproject:342096132
  Change-Id: Ib950abad58e46a5be269891ea7afd0cb8534cbe8
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5559163
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/Device.cpp

• //
  // Copyright 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.
  //
  
  // Device.cpp: Implements the egl::Device class, representing the abstract
  // device. Implements EGLDevice.
  
  #include "libANGLE/Device.h"
  
  #include <iterator>
  
  #include <EGL/eglext.h>
  #include <platform/PlatformMethods.h>
  
  #include "anglebase/no_destructor.h"
  #include "common/debug.h"
  #include "common/platform.h"
  #include "libANGLE/renderer/DeviceImpl.h"
  
  #if defined(ANGLE_ENABLE_D3D11)
  #    include "libANGLE/renderer/d3d/d3d11/Device11.h"
  #endif
  
  namespace egl
  {
  
  template <typename T>
  static std::string GenerateExtensionsString(const T &extensions)
  {
      std::vector<std::string> extensionsVector = extensions.getStrings();
  
      std::ostringstream stream;
      std::copy(extensionsVector.begin(), extensionsVector.end(),
                std::ostream_iterator<std::string>(stream, " "));
      return stream.str();
  }
  
  typedef std::set<egl::Device *> DeviceSet;
  static DeviceSet *GetDeviceSet()
  {
      static angle::base::NoDestructor<DeviceSet> devices;
      return devices.get();
  }
  
  // Static factory methods
  egl::Error Device::CreateDevice(EGLint deviceType, void *nativeDevice, Device **outDevice)
  {
      *outDevice = nullptr;
  
      std::unique_ptr<rx::DeviceImpl> newDeviceImpl;
  
  #if defined(ANGLE_ENABLE_D3D11)
      if (deviceType == EGL_D3D11_DEVICE_ANGLE)
      {
          newDeviceImpl.reset(new rx::Device11(nativeDevice));
      }
  #endif
  
      // Note that creating an EGL device from inputted D3D9 parameters isn't currently supported
  
      if (newDeviceImpl == nullptr)
      {
          return EglBadAttribute();
      }
  
      ANGLE_TRY(newDeviceImpl->initialize());
      *outDevice = new Device(nullptr, newDeviceImpl.release());
  
      return NoError();
  }
  
  bool Device::IsValidDevice(const Device *device)
  {
      const DeviceSet *deviceSet = GetDeviceSet();
      return deviceSet->find(const_cast<Device *>(device)) != deviceSet->end();
  }
  
  Device::Device(Display *owningDisplay, rx::DeviceImpl *impl)
      : mLabel(nullptr), mOwningDisplay(owningDisplay), mImplementation(impl)
  {
      ASSERT(GetDeviceSet()->find(this) == GetDeviceSet()->end());
      GetDeviceSet()->insert(this);
      initDeviceExtensions();
  }
  
  Device::~Device()
  {
      ASSERT(GetDeviceSet()->find(this) != GetDeviceSet()->end());
      GetDeviceSet()->erase(this);
  }
  
  void Device::setLabel(EGLLabelKHR label)
  {
      mLabel = label;
  }
  
  EGLLabelKHR Device::getLabel() const
  {
      return mLabel;
  }
  
  Error Device::getAttribute(EGLint attribute, EGLAttrib *value)
  {
      void *nativeAttribute = nullptr;
      egl::Error error =
          getImplementation()->getAttribute(getOwningDisplay(), attribute, &nativeAttribute);
      *value = reinterpret_cast<EGLAttrib>(nativeAttribute);
      return error;
  }
  
  void Device::initDeviceExtensions()
  {
      mImplementation->generateExtensions(&mDeviceExtensions);
      mDeviceExtensionString = GenerateExtensionsString(mDeviceExtensions);
  }
  
  const DeviceExtensions &Device::getExtensions() const
  {
      return mDeviceExtensions;
  }
  
  const std::string &Device::getExtensionString() const
  {
      return mDeviceExtensionString;
  }
  
  const std::string &Device::getDeviceString(EGLint name)
  {
      if (mDeviceStrings.find(name) == mDeviceStrings.end())
      {
          mDeviceStrings.emplace(name, mImplementation.get()->getDeviceString(name));
      }
  
      return mDeviceStrings.find(name)->second;
  }
  }  // namespace egl
  

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