sonoramac/Sonora — pull request #51 by edwardbarnard (2013-02-11 15:18:56+00:00)
Title: Fixes bug #1 which prevents album covers from displaying for some tile sizes.

Selecting some tile sizes would cause the rounded value of size.width and size.width*4 not to be multiples of each other raising an exception in CGBitmapContextCreate and preventing the covers from displaying.