Libgdx get Texture from Image or Drawable

Question

I would like to get the Texture data out of an image, so it may be rendered directly, but I see no straightforward way of making it, google searches show the other way around only.

I am able to get the Drawable, but the interface doesn't specify the exact texture data, so there's no way that I see to convert an Image actor into a Texture.

What I am trying to achieve is to have brushes, where the data of the brushes are stored in the image of an ImageButton . So upon clicking on an ImageButton The user would be able to draw on the screen based on the image stored in the buttons.

How might I be able to do that?

Answer 1

After digging deeper, I found a solution on the forums :

Your best bet is probably to draw your textures to a FrameBuffer with a 1:1 scale, then you can use

ScreenUtils.getFrameBufferPixmap

To copy a pixmap off the FrameBuffer and resize as you wish.

Something like this:

 fb.begin(); sb.begin(); sb.draw(texture, 0, 0); sb.end(); Pixmap pm = ScreenUtils.getFrameBufferPixmap(0, 0, width, height); fb.end();

It's not exactly a texture, but it is exactly what I would have needed: the pixel data extracted from a drawable.

After much thought I decided that it is easier to just store the texture data redundantly next to to the Imagebutton s, and query directly the stored data, instead of using the ImageButton as a kind of container, which it shouldn't be.