Consider creating a DlAtlas object for DlCanvas.drawAtlas #121512
Description
The arguments to the drawAtlas call include a number of arrays that must match in size for the call to be valid. It is also difficult to compute the bounds of the atlas since it requires transforming each source rectangle and accumulating the results, so such an object could cache the bounds at construction time to save several layers of the graphics system from having to do that work redundantly.