libvulkan_loader.cpp

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//

// Copyright 2021 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.

//

// libvulkan_loader.cpp:

//    Helper functions for the loading Vulkan libraries.

//

#include "common/vulkan/libvulkan_loader.h"

#include "common/system_utils.h"

namespace angle

namespace vk

void *OpenLibVulkan()

    constexpr const char *kLibVulkanNames[] = {

#if defined(ANGLE_PLATFORM_WINDOWS)

        "vulkan-1.dll",

#elif defined(ANGLE_PLATFORM_APPLE)

        "libvulkan.dylib",

        "libvulkan.1.dylib",

        "libMoltenVK.dylib"

#else

        "libvulkan.so",

        "libvulkan.so.1",

#endif

};

    constexpr SearchType kSearchTypes[] = {

// On Android, Fuchsia and GGP we use the system libvulkan.

#if defined(ANGLE_USE_CUSTOM_LIBVULKAN)

        SearchType::ModuleDir,

#else

        SearchType::SystemDir,

#endif  // defined(ANGLE_USE_CUSTOM_LIBVULKAN)

};

    for (angle::SearchType searchType : kSearchTypes)

        for (const char *libraryName : kLibVulkanNames)

            void *library = OpenSystemLibraryWithExtension(libraryName, searchType);

            if (library)

                return library;

    return nullptr;

}  // namespace vk

}  // namespace angle