vulkan_icd.h - mozsearch

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//

// 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_