LWJGL3全屏在屏幕顶部留下空白

Question

我看过很多帖子，它们描述了有关LWJGL3和全屏的各种问题，但是似乎没人遇到我的问题。

Fullscreen

Windowed

基本上，在全屏模式下，窗口不会填满整个屏幕，但在窗口模式下，这样做不会有问题。 这是相关代码

public static void init() {
        System.out.println(Logging.format("Window Dimensions: {0} / {1}", new Object[] { _height, _width }));

        GLFWErrorCallback.createPrint(System.err).set();

        if (!glfwInit())
            throw new IllegalStateException("Unable to initialize GLFW");

        if (_win != MemoryUtil.NULL)
            closeWindow();

        glfwDefaultWindowHints();
        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
        glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

        _win = glfwCreateWindow(_width, _height, _TITLE, _fullscreen ? glfwGetPrimaryMonitor(): MemoryUtil.NULL, 0);

        windowSetup();

        glEnable(GL_TEXTURE_2D);
        glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    }
...
public static void windowSetup() {
        if (_win == NULL)
            throw new RuntimeException("Failed to create the GLFW window");

        _displayData = glfwGetVideoMode(glfwGetPrimaryMonitor());

        glfwDefaultWindowHints();
        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
        glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

        try (MemoryStack stack = stackPush()) {
            IntBuffer pWidth = stack.mallocInt(1);
            IntBuffer pHeight = stack.mallocInt(1);

            glfwGetWindowSize(_win, pWidth, pHeight);
            glfwSetWindowAspectRatio(_win, 16, 9);

            if (!_fullscreen) {
                glfwSetWindowPos(_win, (_displayData.width() - pWidth.get(0)) / 2, (_displayData.height() - pHeight.get(0)) / 2);
                glfwShowWindow(_win);
            } else {
                glfwShowWindow(_win);
            }
        }

        glfwMakeContextCurrent(_win);
        if(_vsync) {
            glfwSwapInterval(1);
        } else {
            glfwSwapInterval(0);
        }

        GL.createCapabilities();

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    }
 ...

public static void toggleFullscreen() {
        if (_fullscreen) {
            _fullscreen = false;
        } else {
            _fullscreen = true;
        }

        long _fswin = glfwCreateWindow(_width, _height, _TITLE, _fullscreen ? glfwGetPrimaryMonitor() : MemoryUtil.NULL, _win);
        glfwDestroyWindow(_win);
        _win = _fswin;

        windowSetup();
        setCallbacks();
    }

由Main中的此代码段驱动

if (canRender) {
    // this swaps buffers
    Renderer.render();
    // this polls events
    Window.update();
}