tree 0612ba7f2f8a0971eb6f7b5ebec0eb3c9734ce91
parent a52fb51e1e20d89b09ee695f87f20fea53c31d5e
author Lei Zhang <thestig@chromium.org> 1719938207 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1719938207 +0000

Use more switch statements in CFX_ScanlineCompositor

Change CompositeBitMaskLine() and CompositeByteMaskLine() to use switch
statements. Then it is easier to see how all cases are being handled.
Add CHECKs to these methods to document the preconditions.

Disallow FXDIB_Format::kInvalid in Init(), as it is never going to get
handled.

Change-Id: I0175c9d00bb5607613dfc16ef9f30d31dc5a070a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/121372
Reviewed-by: Tom Sepez <tsepez@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>