tree 581ffe03269c3192d1f8f55a803562bc96221d50
parent 12ec6760afd92b63d185854008a55762fe39f866
author Lei Zhang <thestig@chromium.org> 1512505593 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1512505593 +0000

Avoid integer overflows in CPDF_FixedMatrix::Transform().

Use floating point math and saturated_cast to calculate the transform.
Refactor CFX_BilinearMatrix::Transform() to share common code, instead
of using integer math and CheckedNumerics.

BUG=chromium:791048

Change-Id: Ib3812b3b3b9373a8eb3b1dde12cb28d424e0bb3e
Reviewed-on: https://pdfium-review.googlesource.com/20390
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>