tree fd21ef1d87c5a4ce338e38f32a30e5b67c43f0e0
parent eef0a633bf3d9be625e387c1b51552d41b459166
author Lei Zhang <thestig@chromium.org> 1670875983 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1670875983 +0000

Fix a regression in CFX_PSRenderer::FaxCompressData().

A refactoring CL [1] confused width and pitch in a calculation inside
CFX_PSRenderer::FaxCompressData(). As a result, PostScript with
/CCITTFaxDecode may be generated incorrectly. Restore the original
calculation to fix the problem.

Along the way, also default initialize `FaxCompressResult::compressed`
to prevent potential undefined behavior issues.

[1] https://pdfium.googlesource.com/pdfium/+/d8ede5f8d13af84bb5e359cf00a6f3fb035d5982

Bug: chromium:1399155
Change-Id: Ia694a6936cfeff2f1a702ce25acc4b901b2bcfce
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/102372
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>