tree be390bed95e4e13a2a7bd4ed21ab3e235e84d97e
parent 013424077b130b6a3556d4cac1f8a96ef7f3fa4d
author Nigel Tao <nigeltao@golang.org> 1414735602 +1100
committer Nigel Tao <nigeltao@golang.org> 1414735602 +1100
golang-hg 7f8928698c1cb0177bace92d57c0cd112509bae9

go.image/webp: implement alpha filtering and uncompressed alpha.

This passes the four new alpha_*.webp conformance tests referred to in
https://golang.org/cl/162850043/#msg7

LGTM=pascal.massimino, r
R=r, pascal.massimino
CC=golang-codereviews
https://golang.org/cl/163630043