tree 2550d1a231e9be51c3a1362c665f4846ff905db5
parent d9a02095505dc7d738e164dc230673896e0df5ea
author Lei Zhang <thestig@chromium.org> 1711651396 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1711651396 +0000

Fix undefined behavior in DrawGouraud()

Use pdfium::ClampSub() to avoid undefined behavior in some DrawGouraud()
calculations. The exact result is not critical, as it only affects pixel
values.

Bug: chromium:40813106
Change-Id: I7eaecb1f64fa1c4f46c051280337f0d414a582f0
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/117730
Reviewed-by: Thomas Sepez <tsepez@google.com>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>