tree 45b875a20eafaf72bce518d03d58f5c677ee1467
parent ae6ebf06c7e85453b91ccd489a6715eb5f013e1b
author Patrik Weiskircher <patrik@pspdfkit.com> 1556555613 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1556555613 +0000

Provide correct state to pattern rendering.

According to 8.7.3.1 in the PDF 2.0 spec, a tiling pattern should
install the graphics state that was in effect at the beginning of the
pattern’s parent content stream.

This means that when loading the pattern we have to supply the current
graphics state and we also can’t keep the pattern loaded past the
current usage.

Bug: pdfium:1286
Change-Id: Id9f609a52803fec29cb42be2ef9bcda6ff31ce3c
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/53330
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>