kc3-lang/angle/src/common/vulkan/vulkan_icd.h

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• Hash : b8e741d2
  Author :
  Date : 2022-06-23T13:36:17
  

  Vulkan: allow selecting render device by PCI device/vendor IDs
  
  The EGL_ANGLE_platform_angle_device_id extension is deliberately vague
  about the meaning of "device ID high" and "device ID low", stating it's
  platform-specific. We can use these for representing the PCI
  device/vendor IDs that can be discovered via various (OS-specific)
  external means.
  
  Bug: angleproject:7460
  Change-Id: Iff462687749e815fa074ef8ff392b6730ef46fa8
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3720733
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/common/vulkan/vulkan_icd.h

• //
  // Copyright 2020 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.
  //
  // vulkan_icd.h : Helper for creating vulkan instances & selecting physical device.
  
  #ifndef COMMON_VULKAN_VULKAN_ICD_H_
  #define COMMON_VULKAN_VULKAN_ICD_H_
  
  #include <string>
  
  #include "common/Optional.h"
  #include "common/angleutils.h"
  #include "common/vulkan/vk_headers.h"
  
  namespace angle
  {
  
  namespace vk
  {
  
  enum class ICD
  {
      Default,
      Mock,
      SwiftShader,
  };
  
  struct SimpleDisplayWindow
  {
      uint16_t width;
      uint16_t height;
  };
  
  class [[nodiscard]] ScopedVkLoaderEnvironment : angle::NonCopyable
  {
    public:
      ScopedVkLoaderEnvironment(bool enableValidationLayers, vk::ICD icd);
      ~ScopedVkLoaderEnvironment();
  
      bool canEnableValidationLayers() const { return mEnableValidationLayers; }
      vk::ICD getEnabledICD() const { return mICD; }
  
    private:
      bool setICDEnvironment(const char *icd);
      bool setCustomExtensionsEnvironment();
  
      bool mEnableValidationLayers;
      vk::ICD mICD;
      bool mChangedCWD;
      Optional<std::string> mPreviousCWD;
      bool mChangedICDEnv;
      Optional<std::string> mPreviousICDEnv;
      Optional<std::string> mPreviousCustomExtensionsEnv;
      bool mChangedNoDeviceSelect;
      Optional<std::string> mPreviousNoDeviceSelectEnv;
  };
  
  void ChoosePhysicalDevice(PFN_vkGetPhysicalDeviceProperties pGetPhysicalDeviceProperties,
                            const std::vector<VkPhysicalDevice> &physicalDevices,
                            vk::ICD preferredICD,
                            uint32_t preferredVendorID,
                            uint32_t preferredDeviceID,
                            VkPhysicalDevice *physicalDeviceOut,
                            VkPhysicalDeviceProperties *physicalDevicePropertiesOut);
  
  }  // namespace vk
  
  }  // namespace angle
  
  #endif  // COMMON_VULKAN_VULKAN_ICD_H_
  

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