commit 4049b53017f5cfdac2c1afecc6d7b4571dd4dce6
author Alec Mouri <alecmouri@google.com> Fri Oct 15 20:59:33 2021 -0700
committer Alec Mouri <alecmouri@google.com> Thu Nov 18 12:33:04 2021 -0800
tree 8e3324e726c070bd9e9f81877955219dbf2015f6
parent 5184f413900601d737488eaf9c53dcfe8ae39d16

Add CPU implementation for tone-mapping curves.

This allows for library implementations that do not wish to place a
dependency on a GPU driver to build a lookup table.

A secondary use-case, which is included in this CL, is to allow for
building unit-tests for checking the validity of the tone-mapping curve.
See the newly added test in RenderEngineTest which validates the PQ
tone-mapping curve by checking grey values.

Bug: 200310159
Test: librenderengine_test
Change-Id: Ic765485c22c53b4dc58a2bc8db42fd51ac7f2eea

libs/tonemap/tests/Android.bp

diff --git a/libs/tonemap/tests/Android.bp b/libs/tonemap/tests/Android.bp
index e58d519..f46f3fa 100644
--- a/libs/tonemap/tests/Android.bp
+++ b/libs/tonemap/tests/Android.bp
@@ -31,6 +31,7 @@
         "android.hardware.graphics.common-V3-ndk",
     ],
     static_libs: [
+        "libmath",
         "libgmock",
         "libgtest",
         "libtonemap",