tree 39605f5e11b187abf1edd101ada8d407fb6df5c1
parent 14bc9cbc73ac37c39b03eaaa2028489c09f60668
author Lei Zhang <thestig@chromium.org> 1579041266 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1579041266 +0000

Consistently use helper functions to read from FXDIB_Format.

FXDIB_Format contains an "alpha flag" component and a bpp component.
Consistently read them with GetAlphaFlagFromFormat() and
GetBppFromFormat(), respectively. GetBppFromFormat() already exists, and
GetAlphaFlagFromFormat() has to be implemented.

Change-Id: I614fc9d393c76b7e2069a8dc28732ca2ecf05eb8
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/65051
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>