tree 3b50dcbcde6ec609a03e1760e2b7fc3c4694778f
parent 5d9acaac1abbbe45558f2bd6cbd3b3e9efde4414
author Lei Zhang <thestig@chromium.org> 1680711789 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1680711789 +0000

Fix a span CHECK() failure in RgbByteOrderTransferBitmap()

When https://pdfium.googlesource.com/pdfium/+/ae74575530 converted
RgbByteOrderTransferBitmap() to use spans, the span calculations can now
trigger a CHECK() failure after processing the last row. The span
position can go out of bounds because the span started with an offset.

Avoid this failure by not taking a subspan after processing the last
row. Add a new pixel test that covers this code path.

Bug: chromium:1430333
Change-Id: I1310130092b688d5d26be71baedce999b8848246
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/105856
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>