tree f77d9133dcf359aa2a1933d3894f8bce6a593c60
parent c1e1550bf489b5fafff70154232c24bc5026b7df
author Chris Craik <ccraik@google.com> 1410913933 -0700
committer Chris Craik <ccraik@google.com> 1410973234 -0700

Handle premultiplication correctly for ColorMatrixColorFilters

bug:17405627

Previously, the input content to the color matrix computation was left
premultiplied. Since the color matrix could reduce the alpha channel,
the alpha was re-multiplied, but this was incomplete, and incorrect.

Instead, apply the color matrix in unpremultiplied space.

Change-Id: I87b8e03d2e228e6ded81f7bbfea952605d7a095c