tree aa08273eefda08985356c87c2f8645e110c05f2b
parent 52314f82ba8696e957e70eabde672b6470fedf7a
author commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1385103731 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1385103731 +0000

Apply hairline optimization only if the path renderer wants it

Make the decision to convert thin, non-hairline paths to hairline
paths at the renderer level.

The current nv_path_rendering implementation does not render
hairlines. Rendering the hairlines with normal renderers cause
unneccessary gl program changes, which is quite slow.

Changes the behavior of non-nv_path_rendering paths to always perform
the optimization if the shape ends up being painted by a renderer that
wants the optimization. Previously the optimization was applied only
when callgraph started with SkCanvas::drawPath.

Applies the optimization for GrAAHairLineRenderer and
GrDefaultPathRenderer.

This changes gm results for dashing3_{msaa4,gpu} and drawlooper_msaa4.

R=bsalomon@google.com, jvanverth@google.com, rmistry@google.com

Author: kkinnunen@nvidia.com

Review URL: https://codereview.chromium.org/38573007

git-svn-id: http://skia.googlecode.com/svn/trunk@12357 2bbb7eff-a529-9590-31e7-b0007b416f81