commit 698147a3bea8216b2214e388b92ae4208c4aee20
author Peiyong Lin <lpy@google.com> Fri Sep 14 13:27:18 2018 -0700
committer Peiyong Lin <lpy@google.com> Mon Sep 17 13:37:53 2018 -0700
tree 7c0d7ee1664a281a240b356ce18a986cb5382785
parent 0e09d73f479520297e0ea1e2ac9c7c91cd3995be

[SurfaceFlinger] Plumb setLayerColorTransform.

setLayerColorTransform is a new compsoer HAL API to set color transform matrix
on a layer, which is applied before composition.

BUG: 111562338
Test: Build, flash, boot
Change-Id: I7ee145dcf78a7f61fac2c652f9b5e83e5aa0d1f3

services/surfaceflinger/DisplayHardware/HWC2.cpp

diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index a32ff6e..3a40648 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -781,7 +781,8 @@
   : mComposer(composer),
     mCapabilities(capabilities),
     mDisplayId(displayId),
-    mId(layerId)
+    mId(layerId),
+    mColorMatrix(android::mat4())
 {
     ALOGV("Created layer %" PRIu64 " on display %" PRIu64, layerId, displayId);
 }
@@ -988,4 +989,14 @@
   return static_cast<Error>(intError);
 }
 
+// Composer HAL 2.3
+Error Layer::setColorTransform(const android::mat4& matrix) {
+    if (matrix == mColorMatrix) {
+        return Error::None;
+    }
+    mColorMatrix = matrix;
+    auto intError = mComposer.setLayerColorTransform(mDisplayId, mId, matrix.asArray());
+    return static_cast<Error>(intError);
+}
+
 } // namespace HWC2