tree 5537bb848fc9f55f48b33b137780250047b2bffd
parent 48c36d4bcd42d780011dbea76409261c84956469
author Hui Yingst <nigi@chromium.org> 1675826280 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1675826280 +0000

Fix an issue that a 0-length round-cap path was not rendered

For a 0-length closed path, it should be rendered as a dot if it has
the round line cap type. And it should not be rendered if its line cap
type is butt or projecting square.

This CL introduce the following rendering behaviors:
[1] For AGG and Skia: a closed 0-length round-cap path with only one
    "move" operation now can be rendered as a dot.
[2] For Skia only: Fixed the behaviors on rendering closed 0-length
    paths of all line cap types. Now that the "Zero Length Solid line"
    section of fx/path/bug_0_length_line_expected.pdf can be rendered
    correctly.

Note: The "Zero Length Solid line" section of corpus test
bug_0_length_line_expected.pdf is not completely fixed for AGG.

Bug: pdfium:1812, pdfium:1983
Change-Id: Ib2b23f9e0159a06f5ef4fe600a28c5b0d7a06a87
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/103632
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>