ImageToBitmapConverter

package net.dermetfan.someLibgdxTests;

import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;

import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Pixmap.Format;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.glutils.FrameBuffer;
import com.badlogic.gdx.scenes.scene2d.ui.Image;

public class ImageToBitmapConverter {

    /** draws the given {@link Image} on a {@link FrameBuffer} and creates a {@link Bitmap} from the {@link FrameBuffer#getColorBufferTexture() texture}.
     *  @param image the {@link Image} to draw
     *  @param batch needed to draw the given {@link Image}
     *  @return a {@link Bitmap} representation of the {@link Image} */
    public static Bitmap convert(Image image, Batch batch) {
        // draw on FBO
        FrameBuffer fbo = new FrameBuffer(Format.RGBA8888, (int) image.getImageWidth(), (int) image.getImageHeight(), false);
        fbo.begin();
        batch.begin();
        image.draw(batch, 1);
        batch.end();
        fbo.end();

        Texture texture = fbo.getColorBufferTexture();
        fbo.dispose();

        // get a Pixmap from the texture
        texture.getTextureData().prepare(); // consumePixmap() says "A call to prepare() must precede a call to this method."
        Pixmap pixmap = texture.getTextureData().consumePixmap();
        texture.dispose();

        // create a Bitmap from the pixmap
        Bitmap bm = Bitmap.createBitmap((int) image.getImageWidth(), (int) image.getImageHeight(), Config.ARGB_8888); // maybe this will be an issue since libdgx's Format enum just provides RGBA_X formats and this is ARGB
        bm.copyPixelsFromBuffer(pixmap.getPixels());
        pixmap.dispose();

        return bm;
    }

}