pass width and height to LoadImage()

[technosaurus]

libjpeg and rsvg have builtin scaling that could allow for better/more efficient scaled results
http://jpegclub.org/djpeg/
http://cairographics.org/manual/cairo-Transformations.html#cairo-scale
https://developer.gnome.org/rsvg/stable/RsvgHandle.html#rsvg-handle-set-size-callback

[joewing]

I agree. The primary reason I didn't do this before was that JWM used to cache the raw image data and scale that as needed. Now that JWM loads the image each time a new size is requested, this is a lot easier.

[joewing]

Available as of snapshot 1343.