12.3、Libgdx的图像之截屏

（官网：www.libgdx.cn）

接下来的示例说明怎样进行截屏并且保存为PNG格式。

public class ScreenshotFactory {

private static int counter = 1;

public static void saveScreenshot(){

    try{

        FileHandle fh;

        do{

            fh = new FileHandle("screenshot" + counter++ + ".png");

        }while (fh.exists());

        Pixmap pixmap = getScreenshot(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), false);

        PixmapIO.writePNG(fh, pixmap);

        pixmap.dispose();

    }catch (Exception e){

    }

}

private static Pixmap getScreenshot(int x, int y, int w, int h, boolean yDown){

    final Pixmap pixmap = ScreenUtils.getFrameBufferPixmap(x, y, w, h);

    if (yDown) {

        ByteBuffer pixels = pixmap.getPixels();

        int numBytes = w * h * 4;

        byte[] lines = new byte[numBytes];

        int numBytesPerLine = w * 4;

        for (int i = 0; i < h; i++) {

            pixels.position((h - i - 1) * numBytesPerLine);

            pixels.get(lines, i * numBytesPerLine, numBytesPerLine);

        }

        pixels.clear();

        pixels.put(lines);

    }

    return pixmap;

}

}

巴特西

12.3、Libgdx的图像之截屏

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