在 macOS 上使用 GLFW 和 Metal 创建窗口会创建两个窗口吗？

Question

每当我尝试创建一个窗口时，它都会直接在彼此之上创建两个窗口，并在我移动它们时出现此错误：

CLIENT ERROR: TUINSRemoteViewController does not override -viewServiceDidTerminateWithError: and thus cannot react to catastrophic errors beyond logging them

这是我的代码：

mtl_engine.mm

#include "mtl_engine.hpp"

void MTLEngine::init() {
    initDevice();
    initWindow();
}

void MTLEngine::run() {
    while (!glfwWindowShouldClose(glfwWindow)) {
        glfwPollEvents();
    }
}

void MTLEngine::cleanup() {
    glfwTerminate();
    metalDevice->release();
}

void MTLEngine::initDevice() {
    metalDevice = MTL::CreateSystemDefaultDevice();
}

void MTLEngine::initWindow() {
    glfwInit();
    glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
    glfwWindow = glfwCreateWindow(800, 600, "Metal Engine", NULL, NULL);
    if (!glfwWindow) {
        glfwTerminate();
        exit(EXIT_FAILURE);
    }

    metalWindow = glfwGetCocoaWindow(glfwWindow);
    metalLayer = [CAMetalLayer layer];
    metalLayer.device = (__bridge id<MTLDevice>)metalDevice;
    metalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
    metalWindow.contentView.layer = metalLayer;
    metalWindow.contentView.wantsLayer = YES;
}

mtl_engine.hpp

#pragma once

#define GLFW_INCLUDE_NONE
#import <GLFW/glfw3.h>
#define GLFW_EXPOSE_NATIVE_COCOA
#import <GLFW/glfw3native.h>

#include <Metal/Metal.hpp>
#include <Metal/Metal.h>
#include <QuartzCore/CAMetalLayer.hpp>
#include <QuartzCore/CAMetalLayer.h>
#include <QuartzCore/QuartzCore.hpp>

class MTLEngine {
public:
    void init();
    void run();
    void cleanup();

private:
    void initDevice();
    void initWindow();

    MTL::Device* metalDevice;
    GLFWwindow* glfwWindow;
    NSWindow* metalWindow;
    CAMetalLayer* metalLayer;
};

主要.mm

#include "mtl_engine.hpp"

int main() {

    MTLEngine engine;
    engine.init();
    engine.run();
    engine.cleanup();

    return 0;
}

mtl_实现.cpp

#define NS_PRIVATE_IMPLEMENTATION
#define CA_PRIVATE_IMPLEMENTATION
#define MTL_PRIVATE_IMPLEMENTATION
#include <Foundation/Foundation.hpp>
#include <Metal/Metal.hpp>
#include <QuartzCore/QuartzCore.hpp>

Answer 1

我怀疑您正在遵循本教程： https://metaltutorial.com/Lesson%201%3A%20Hello%20Metal/1.%20Hello%20Window/

如果是这样，请从该教程的存储库克隆原始项目并尝试构建该项目，看看是否遇到相同的问题。

我运行了它，效果很好，但是，你的 mac 终端也想运行它（在我的例子中，iterm 尝试运行它 2 次），因此它会给你 2 或 3 个窗口。我认为这可能是一个错误，我不知道，我也在尝试从这个来源学习。也许关闭终端可以修复它。