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我正在按照vulkan 教程在 macOS 上创建一个实例。我略有分歧，因为我使用的是 Clion 和 CMake，而不是 XCode。当我尝试运行程序时，我无法创建 Vulkan 实例并且进程退出并出现错误。

我已经检查过，我的 GLFW 库（3.3，安装了自制--HEAD标志）支持 Vulkan。

我的代码：

#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>

#include <iostream>
#include <stdexcept>
#include <cstdlib>

const int WIDTH = 800;
const int HEIGHT = 600;

class HelloTriangleApplication {
public:
    void run() {
        initWindow();
        initVulkan();
        mainLoop();
        cleanup();
    }

private:
    GLFWwindow* window;
    VkInstance instance;

    void initWindow() {
        glfwInit();

        glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
        glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

        window = glfwCreateWindow(WIDTH, HEIGHT, "Vulkan", nullptr, nullptr);
    }

    void initVulkan() {
        if(glfwVulkanSupported()) {
            std::cout << "Vulkan supported";
            createInstance();
        }
    }

    void mainLoop() {
        while (!glfwWindowShouldClose(window)) {
            glfwPollEvents();
        }
    }

    void cleanup() {
        vkDestroyInstance(instance, nullptr);

        glfwDestroyWindow(window);

        glfwTerminate();
    }

    void createInstance() {
        VkApplicationInfo appInfo = {};
        appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
        appInfo.pApplicationName = "Hello Triangle";
        appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
        appInfo.pEngineName = "No Engine";
        appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
        appInfo.apiVersion = VK_API_VERSION_1_0;

        VkInstanceCreateInfo createInfo = {};
        createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
        createInfo.pApplicationInfo = &appInfo;

        uint32_t glfwExtensionCount = 0;
        const char** glfwExtensions;
        glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtensionCount);

        createInfo.enabledExtensionCount = glfwExtensionCount;
        createInfo.ppEnabledExtensionNames = glfwExtensions;

        createInfo.enabledLayerCount = 0;

        if (vkCreateInstance(&createInfo, nullptr, &instance) != VK_SUCCESS) {
            throw std::runtime_error("failed to create instance!");
        }
    }
};

int main() {
    HelloTriangleApplication app;

    try {
        app.run();
    } catch (const std::exception& e) {
        std::cerr << e.what() << std::endl;
        return EXIT_FAILURE;
    }

    return EXIT_SUCCESS;
}

我的 CMakeLists.txt 文件：

cmake_minimum_required(VERSION 3.14)
project(vulkantutorial)

set(CMAKE_CXX_STANDARD 17)

add_executable(vulkantutorial main.cpp)

find_package(Vulkan REQUIRED)
target_include_directories(${PROJECT_NAME} PUBLIC ${Vulkan_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} Vulkan::Vulkan)

find_package(PkgConfig REQUIRED)
pkg_search_module(GLM REQUIRED glm)
include_directories(${GLM_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} ${GLM_LIBRARY_DIRS})

find_package(glfw3 3.3 REQUIRED)
include_directories(${GLFW_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} ${GLFW_LIBRARIES})

在我的 CLion 设置中，我定义了以下环境变量：

  • DYLD_LIBRARY_PATH
  • VK_LAYER_PATH
  • VK_ICD_FILENAMES
  • VULKAN_SDK

除了VULKAN_SDK被要求获得vulkaninfo：

==========
VULKANINFO
==========

Vulkan Instance Version: 1.1.114



Instance Extensions:
====================
Instance Extensions     count = 8
        VK_EXT_debug_report                 : extension revision  9
        VK_EXT_debug_utils                  : extension revision  1
        VK_EXT_swapchain_colorspace         : extension revision  4
        VK_KHR_device_group_creation        : extension revision  1
        VK_KHR_get_physical_device_properties2: extension revision  1
        VK_KHR_get_surface_capabilities2    : extension revision  1
        VK_KHR_surface                      : extension revision 25
        VK_MVK_macos_surface                : extension revision  2
Layers: count = 0
=======
Presentable Surfaces:
=====================
GPU id       : 0 (Intel(R) Iris(TM) Plus Graphics 655)
Surface type : VK_MVK_macos_surface
Formats:                count = 32
        B8G8R8A8_UNORM
...

任何人都可以提供一些启示和帮助吗？

4

1 回答 1

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似乎虽然我在 CLion 中设置了环境变量，但Preferences -> Build, Execution, Deployment -> CMake -> Environment这些并没有传递给运行配置。

这很有趣，因为它们似乎已部分注册 - 我输入了一个错字DYLD_LIBRARY_PATH并解决了dyld: warning, unknown environment variable: DYLD_LIBRARY我的麻烦。

在运行配置中显式设置环境变量解决了这个问题（并且还突出显示了我的层路径中的一个错误）。虽然，我认为这些应该通过 CMake 传递是否正确？

于 2019-08-21T07:29:21.493 回答