tree 5abbf2d092ef42a0ccff0d18fd094ae69ad81712
parent e90ba29969485656dc052694f312ff4fc006a7f2
author Ian Prest <iapres@microsoft.com> 1587070153 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1587074144 -0700

SVG: Increase hit-testing precision on strokes

Skia takes a precision value when generating strokes as an optimization.
When rendering, we pass a value derived from the scale-factor in the
CTM, but when hit-testing we were passing a hard-coded value.  This
worked reasonably well for solid strokes at moderate scales.  However,
at sufficiently high scales and especially for dashed strokes, the
stroke generated for hit-testing was noticeably different from the
rendered stroke.

This change passes the CTM through to the hit-testing code, so that we
can use the same high precision for hit testing as rendering.

Bug: 964614
Change-Id: I8dfcb3ade86b9e7b63c7415baab5814ac2286ce8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2112955
Reviewed-by: Ian Prest <iapres@microsoft.com>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Reviewed-by: Fredrik Söderquist <fs@opera.com>
Commit-Queue: Ian Prest <iapres@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#759761}