tree 13f3653b85d152effe80e92c467455e5286f9ef5
parent da0658022d4cfbb40c85a84a1fc889fb057bcdc4
author Lei Zhang <thestig@chromium.org> 1583877066 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1583877066 +0000

Add a pixel test for /SMaskInData in JPEG2000 images.

In images using the JPXDecode filter, if /SMaskInData is set to 1, then
the image data stream includes soft-mask values for use as a source of
mask shape or mask opacity.

The sample JPEG2000 image is generated from a PNG with alpha using
OpenJPEG. The image has to be a binary for /SMaskInData 1 to work. i.e.
No additional filters.

Bug: pdfium:1469
Change-Id: Id40ec19ee587fcdfd930e1f3a6644326990948a3
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/67330
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>