Java 双缓冲 - 仅每隔一帧绘制

发布于 2024-12-19 04:48:29 字数 701 浏览 2 评论 0原文

我正在尝试开发一个全屏应用程序，但我遇到了双缓冲区问题。

public void create ()
{
    window = new JWindow ();
    window.setIgnoreRepaint (true);
    GraphicsEnvironment.getLocalGraphicsEnvironment ().getDefaultScreenDevice ().setFullScreenWindow (window);
    window.setVisible (true);
    window.createBufferStrategy (2);
}

public void renderCycle ()
{
    BufferStrategy strategy = window.getBufferStrategy ();
    while (true)
    {
        render ((Graphics2D) strategy.getDrawGraphics ());
        strategy.show ();
    }
}

public void render (Graphics2D g)
{
    g.setColor (Color.WHITE);
    g.drawString ("Veikia", 100, 100);
}

我看到严重的闪烁 - 似乎文本仅在每个其他缓冲区上绘制，而其余缓冲区包含白色背景。可能是什么问题？

原文

I'm trying to develop a full-screen application, but I'm having issues with double buffers.

public void create ()
{
    window = new JWindow ();
    window.setIgnoreRepaint (true);
    GraphicsEnvironment.getLocalGraphicsEnvironment ().getDefaultScreenDevice ().setFullScreenWindow (window);
    window.setVisible (true);
    window.createBufferStrategy (2);
}

public void renderCycle ()
{
    BufferStrategy strategy = window.getBufferStrategy ();
    while (true)
    {
        render ((Graphics2D) strategy.getDrawGraphics ());
        strategy.show ();
    }
}

public void render (Graphics2D g)
{
    g.setColor (Color.WHITE);
    g.drawString ("Veikia", 100, 100);
}

I see a heavy flickering - it seems as if the text is drawn only on every other buffer and remaining buffers contain white background. What could be the problem?

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不再让梦枯萎 2024-12-26 04:48:29

我刚刚尝试过这个 MultiBufferTest。直到滞后周期低于显示器相应的刷新率之前，我没有看到任何渲染伪影。您的示例似乎在帧之间没有延迟。

我添加了几行来显示帧周期：

...
g.fillRect(0, 0, bounds.width, bounds.height);
g.setColor(Color.black); // added
g.drawString(String.valueOf(lag), 100, 100); // added
bufferStrategy.show();
...

I just tried this MultiBufferTest. I didn't see any rendering artifact until the lag period fell below the monitor's corresponding refresh rate. Your example appears to have no delay between frames.

I added a few lines to show the frame period:

...
g.fillRect(0, 0, bounds.width, bounds.height);
g.setColor(Color.black); // added
g.drawString(String.valueOf(lag), 100, 100); // added
bufferStrategy.show();
...

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