tree c771b221e318ab2d2aa9649a2316c3ce66fe76af
parent 9423718a7d177e8d1387df395e775d063ef18e23
author Lei Zhang <thestig@chromium.org> 1705119270 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1705119270 +0000

Handle MultiplyAlpha(1.0f) within MultiplyAlpha()

Treat this as a no-op inside of MultiplyAlpha(), instead of relying on
the caller to do the check. Also make sure the alpha value passed into
MultiplyAlpha() is in the range [0, 1].

Change-Id: I819866906d57a506e9310a6993701ae532c1266a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/115492
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>