使用 ScreenUtils 将屏幕截图保存为 libgdx 中的图像
我正在使用 ScreenUtils.getFrameBufferPixels(...) 来截取游戏画面.我想将此方法返回的字节数组保存为文件中的图像.我正在使用 libGDX，我的重点是 android.
I am using ScreenUtils.getFrameBufferPixels(...) to take a screenshot of the game screen. I want to save the byte array returned by this method as an image in file. I am using libGDX and my focus in android.
推荐答案
现在相当容易.Libgdx 提供了一个示例.
It is now fairly easy. Libgdx provides an example.
我必须添加一条语句才能使其正常工作.图片无法直接保存到 /screenshot1.png.只需添加 Gdx.files.getLocalStoragePath().
I had to add one statement to get it working. The image could not be saved directly to /screenshot1.png. Simply prepend Gdx.files.getLocalStoragePath().
源代码:
public class ScreenshotFactory {
private static int counter = 1;
public static void saveScreenshot(){
try{
FileHandle fh;
do{
fh = new FileHandle(Gdx.files.getLocalStoragePath() + "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) {
// Flip the pixmap upside down
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;
}
}
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