tree 1b04df78fa4a4aa239d09184e88929102d12886a
parent 683e90611c8a536c3c5feedea27bbbefedf746d2
author caryclark <caryclark@google.com> 1403101459 -0700
committer Commit bot <commit-bot@chromium.org> 1403101459 -0700

Fix last pathops skp bug

This fixes the last bug discovered by iterating through the 800K
skp corpus representing the top 1M websites. For every clip on the
stack, the paths are replaced with the pathop intersection. The
resulting draw is compared with the original draw for pixel errors.

At least two prominent bugs remain. In one, the winding value is
confused by a cubic with an inflection. In the other, a quad/cubic
pair, nearly coincident, fails to find an intersection.

These minor changes include ignoring very tiny self-intersections
of cubics, and processing degenerate edges that don't connect to
anything else.

R=reed@android.com
TBR=reed

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/340103002