processing/processing — pull request #2645 by JakubValtar (2014-07-23 09:30:21+00:00)
Title: Fixes blending operations in Java2D

Fixes #2012, fixes #2275. It's the same problem as #2030 - Java won't
set the high bits when destination is RGB, returns 0 for alpha in
BlendingContext#compose(Raster, Raster, WritableRaster). That's why blending operations in Java2D didn't work properly.