commit b658b15cd4f694384a2627834bbfb62b323df5a9
author Sally Qi <sallyqi@google.com> Mon Nov 11 19:43:42 2024 -0800
committer Sally Qi <sallyqi@google.com> Tue Nov 12 16:22:14 2024 -0800
tree 861dde0707664f23de8ac8147e3f3e4b1f9b13ae
parent 44d6fff462d9291ddbf1a97de8c45ee596101818

[Lut shader] Fix gamma correction

to avoid color conversion, we de-gamma the image without changing the
primaries, after lut(s) shader being applied, we need to re-gamma it
back.

Bug: 329472856
Test: luts cts cases
Flag: android.hardware.flags.luts_api
Change-Id: I8c8a3b6d445d11efab4115c097d7eeb91d1be384

libs/renderengine/skia/SkiaRenderEngine.cpp

diff --git a/libs/renderengine/skia/SkiaRenderEngine.cpp b/libs/renderengine/skia/SkiaRenderEngine.cpp
index 5c46c91..a93f6c3 100644
--- a/libs/renderengine/skia/SkiaRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaRenderEngine.cpp
@@ -544,7 +544,8 @@
     }
 
     if (graphicBuffer && parameters.layer.luts) {
-        shader = mLutShader.lutShader(shader, parameters.layer.luts);
+        shader = mLutShader.lutShader(shader, parameters.layer.luts,
+                                      toSkColorSpace(parameters.outputDataSpace));
     }
 
     if (parameters.requiresLinearEffect) {