JFrame中的LWJGL显示在OSX上表现不佳

Question

最近我使用LWJGL制作了一个应用程序，我决定将JFrame设置为显示的父级。我这样做是因为它提供了更好的调整大小和移动功能。特别是在windows上，LWJGL似乎有一个错误，当移动和调整大小时，应用程序会冻结。

问题是，当我在我的mac上尝试应用程序时，它比我的windows电脑快得多，性能真的很差。当我在mac上使用常规的本机显示时，它在60fps下运行流畅，但奇怪的是：当我在mac上的JFrame中运行它时，fps似乎不受影响，仍然是60，但它看起来非常不稳定，尤其是在全屏时。就好像显示器每5帧或更多帧才更新一次，尽管逻辑似乎会像应该的那样更新每一帧。为什么会这样？有什么方法可以修复它吗？这是窗口初始化代码：

public JFrame frame;
public final Canvas frameCanvas = new Canvas();

private static boolean closeRequested = false;
private final static AtomicReference<Dimension> newCanvasSize = new AtomicReference<Dimension>();

public BaseGame()
{
    this.frame = new JFrame("Game");
    this.frame.setLayout(new BorderLayout());
    this.frameCanvas.addComponentListener(new ComponentAdapter()
    {
        @Override
        public void componentResized(ComponentEvent e)
        {
            newCanvasSize.set(BaseGame.this.frameCanvas.getSize());
        }
    });

    this.frame.addWindowFocusListener(new WindowAdapter()
    {
        @Override
        public void windowGainedFocus(WindowEvent e)
        {
            BaseGame.this.frameCanvas.requestFocusInWindow();
        }

    });

    this.frame.addWindowListener(new WindowAdapter()
    {
        @Override
        public void windowClosing(WindowEvent e)
        {
            closeRequested = true;
        }
    });

    this.frame.add(this.frameCanvas, BorderLayout.CENTER);

    try
    {
        Display.setParent(this.frameCanvas);
        Display.setVSyncEnabled(true);
        this.frame.setPreferredSize(new Dimension(800, 500));
        this.frame.setMinimumSize(new Dimension(400, 400));
        this.frame.pack();
        Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
        this.frame.setLocation(dim.width / 2 - this.frame.getSize().width / 2, dim.height / 2 - this.frame.getSize().height / 2);
        this.frame.setVisible(true);
        Display.create();

        this.runTick();

        Display.destroy();
        this.frame.dispose();
        System.exit(0);
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}

private void runTick()
{
    this.initGL();
    Dimension newDim;
    this.resize(this.frameCanvas.getWidth(), this.frameCanvas.getHeight(), Display.isFullscreen());

    while (!Display.isCloseRequested() && !closeRequested)
    {
        thisFrame = getCurrentTime();

        newDim = newCanvasSize.getAndSet(null);

        if (newDim != null)
        {
            this.resize(this.frameCanvas.getWidth(), this.frameCanvas.getHeight(), Display.isFullscreen());
        }

        this.updateTick();
        this.renderTick();

        Display.update();
        Display.sync(60);
    }
}

public void initGL()
{
    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_DEPTH_TEST);
    GL11.glDisable(GL11.GL_LIGHTING);

    GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    GL11.glClearDepth(1);

    GL11.glViewport(0, 0, 800, 500);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, 800, 500, 0, 1, -1);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
}

public void resize(int width, int height, boolean fullScreen)
{
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glViewport(0, 0, width, height);
    GLU.gluPerspective(45.0f, ((float) width) / ((float) height), 0.1f, 100.0f);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
}

Answer 1

如果使用LWJGL，请不要使用JFrame。摇摆是你麻烦的根源。使用LWJGL的优化窗口：

设置窗口：

Display.setDisplayMode(new DisplayMode(width,height));
Display.create();

和键盘：

Keyboard.isKeyDown(Keyboard.KEY_ESCAPE);

您需要在main方法中创建一个循环，如下所示：

while (!done) {
    // Update anything you want to update.

    // Clear screen.
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
    GL11.glLoadIdentity();

    // Render stuff.    

    Display.update();

    // Optional VSync.
    Display.sync(FRAME_RATE);
}