commit a3fb7d6b631c9ecab70ff68443cbdee872ed649f
author Peiyong Lin <lpy@google.com> Wed Apr 11 17:41:47 2018 -0700
committer Peiyong Lin <lpy@google.com> Mon Apr 16 13:18:03 2018 -0700
tree e666f4fe2feec5f0afe2759b7ccccfc8daff9be5
parent 8cafb0cc57cedf3012b4b7f99519f4a9150dc38b

[RenderEngine] Add hybrid Log-Gamma support.

Previously we already added support for BT2020 PQ, this patch adds BT2020 HLG
transfer function to render engine.

BUG: 73825729
Test: Build and flash
Change-Id: I70d974b3f8fb43c8de4c527f328dbb2f8725e8ec

services/surfaceflinger/RenderEngine/Description.h

diff --git a/services/surfaceflinger/RenderEngine/Description.h b/services/surfaceflinger/RenderEngine/Description.h
index 75c1981..5854ba4 100644
--- a/services/surfaceflinger/RenderEngine/Description.h
+++ b/services/surfaceflinger/RenderEngine/Description.h
@@ -51,12 +51,11 @@
         LINEAR,
         SRGB,
         ST2084,
+        HLG,  // Hybrid Log-Gamma for HDR.
     };
     void setInputTransferFunction(TransferFunction transferFunction);
     void setOutputTransferFunction(TransferFunction transferFunction);
 
-    void enableToneMapping(bool enable);
-
 private:
     friend class Program;
     friend class ProgramCache;
@@ -84,9 +83,6 @@
     // transfer functions for the input/output
     TransferFunction mInputTransferFunction = TransferFunction::LINEAR;
     TransferFunction mOutputTransferFunction = TransferFunction::LINEAR;
-
-    // tone-map the color
-    bool mToneMappingEnabled = false;
 };
 
 } /* namespace android */