commit 277eaff43891842c0a6d6e11de83b493e018012f
author Peiyong Lin <lpy@google.com> Wed Jan 16 16:18:22 2019 -0800
committer Peiyong Lin <lpy@google.com> Fri Jan 25 17:15:26 2019 -0800
tree 8130280f810d4220018479d13fb6b62c7898bedf
parent 1bbc8a56c48c38c8dde3df32ed4be606a0d99a4d

Add Display.getPreferredWideGamutColorSpace().

Add Display.getPreferredWideGamutColorSpace() to return the preferred wide
color space that the rendering and composition pipeline prefers.

BUG: 120904891
Test: atest android.display.cts.DisplayTest#testGetPreferredWideGamutColorSpace
Change-Id: I1bcd9db72689a734b2a7c097b99a01464810994a

services/core/java/com/android/server/display/DisplayManagerService.java

diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index cb3f91b..b89768a 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -36,6 +36,7 @@
 import android.content.pm.ParceledListSlice;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
+import android.graphics.ColorSpace;
 import android.graphics.Point;
 import android.hardware.SensorManager;
 import android.hardware.display.AmbientBrightnessDayStats;
@@ -93,9 +94,9 @@
 import com.android.server.LocalServices;
 import com.android.server.SystemService;
 import com.android.server.UiThread;
+import com.android.server.display.ColorDisplayService.ColorDisplayServiceInternal;
 import com.android.server.wm.SurfaceAnimationThread;
 import com.android.server.wm.WindowManagerInternal;
-import com.android.server.display.ColorDisplayService.ColorDisplayServiceInternal;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -294,6 +295,7 @@
     // is rejected by the system.
     private final Curve mMinimumBrightnessCurve;
     private final Spline mMinimumBrightnessSpline;
+    private final ColorSpace mWideColorSpace;
 
     public DisplayManagerService(Context context) {
         this(context, new Injector());
@@ -322,6 +324,8 @@
         PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
         mGlobalDisplayBrightness = pm.getDefaultScreenBrightnessSetting();
         mCurrentUserId = UserHandle.USER_SYSTEM;
+        ColorSpace[] colorSpaces = SurfaceControl.getCompositionColorSpaces();
+        mWideColorSpace = colorSpaces[1];
     }
 
     public void setupSchedulerPolicies() {
@@ -1073,6 +1077,10 @@
         return mMinimumBrightnessCurve;
     }
 
+    int getPreferredWideGamutColorSpaceIdInternal() {
+        return mWideColorSpace.getId();
+    }
+
     private void setBrightnessConfigurationForUserInternal(
             @Nullable BrightnessConfiguration c, @UserIdInt int userId,
             @Nullable String packageName) {
@@ -2128,6 +2136,16 @@
             }
         }
 
+        @Override // Binder call
+        public int getPreferredWideGamutColorSpaceId() {
+            final long token = Binder.clearCallingIdentity();
+            try {
+                return getPreferredWideGamutColorSpaceIdInternal();
+            } finally {
+                Binder.restoreCallingIdentity(token);
+            }
+        }
+
         void setBrightness(int brightness) {
             Settings.System.putIntForUser(mContext.getContentResolver(),
                     Settings.System.SCREEN_BRIGHTNESS, brightness, UserHandle.USER_CURRENT);