tree 5d839939b8e32c38d0f535676f9cf099c1923efc
parent 641e33b3f6014b193856ba5789b1a0278a92e083
author senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1394660262 +0000
committer senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1394660262 +0000

Fix GPU colormatrix color filter with saturated alpha.

Clamp RGBA values before unpremultiplying, to match the raster path. This causes a problem when the resulting
alpha is >1.0, resulting in overly saturated RGB.

Covered by the setYUV2RGB() test case in the colormatrix GM.

R=bsalomon@google.com

Review URL: https://codereview.chromium.org/196133006

git-svn-id: http://skia.googlecode.com/svn/trunk@13778 2bbb7eff-a529-9590-31e7-b0007b416f81