tree 919134ee41ae26ed5b323dba2cb082117fd6e585
parent ef4ce516ae7fd27c9e0d7c74c73f41ad79365583
author Christopher Cameron <ccameron@chromium.org> 1701240815 +0000
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1701240815 +0000

Replace vector<display::GammaRampRGBEntry> with display::GammaCurve

This should have no functional changes.

By using the display::GammaCurve::Sample function we can simplify
the code that sends the LUTs that are sent to DRM (resampling directly
in place and not having to special case the identity function unless
desired).

This will also allow us to transparently support parametric transfer
functions (which are often specified in display color profiles).

This will also allow us to be more intentional about the different
gamma curves that will be specified (those for a color profile
versus those for adjusting brightness as in the chromecast usage).

Bug: 1505062
Change-Id: I860e0e6988591d59c94728c54e3c492778aca966
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5057558
Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: ccameron chromium <ccameron@chromium.org>
Reviewed-by: Sean Topping <seantopping@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1230474}