Add a SystemApi to control display saturation.
Allows an app with the appropriate permission to reduce
(make more gray) the saturation of colors on the display.
Test: manual
Bug: 77189882
Change-Id: I2b7b065d07bd2ca24730b2e8c52d161c22b307ab
diff --git a/core/java/android/hardware/display/DisplayManager.java b/core/java/android/hardware/display/DisplayManager.java
index a3b2d22..efb9517 100644
--- a/core/java/android/hardware/display/DisplayManager.java
+++ b/core/java/android/hardware/display/DisplayManager.java
@@ -535,6 +535,19 @@
}
/**
+ * Set the level of color saturation to apply to the display.
+ * @param level The amount of saturation to apply, between 0 and 1 inclusive.
+ * 0 produces a grayscale image, 1 is normal.
+ *
+ * @hide
+ */
+ @SystemApi
+ @RequiresPermission(Manifest.permission.CONTROL_DISPLAY_SATURATION)
+ public void setSaturationLevel(float level) {
+ mGlobal.setSaturationLevel(level);
+ }
+
+ /**
* Creates a virtual display.
*
* @see #createVirtualDisplay(String, int, int, int, Surface, int,
diff --git a/core/java/android/hardware/display/DisplayManagerGlobal.java b/core/java/android/hardware/display/DisplayManagerGlobal.java
index 1f67a6b..2d0ef2f 100644
--- a/core/java/android/hardware/display/DisplayManagerGlobal.java
+++ b/core/java/android/hardware/display/DisplayManagerGlobal.java
@@ -384,6 +384,17 @@
}
}
+ /**
+ * Set the level of color saturation to apply to the display.
+ */
+ public void setSaturationLevel(float level) {
+ try {
+ mDm.setSaturationLevel(level);
+ } catch (RemoteException ex) {
+ throw ex.rethrowFromSystemServer();
+ }
+ }
+
public VirtualDisplay createVirtualDisplay(Context context, MediaProjection projection,
String name, int width, int height, int densityDpi, Surface surface, int flags,
VirtualDisplay.Callback callback, Handler handler, String uniqueId) {
diff --git a/core/java/android/hardware/display/IDisplayManager.aidl b/core/java/android/hardware/display/IDisplayManager.aidl
index 9fcb9d3..b77de748 100644
--- a/core/java/android/hardware/display/IDisplayManager.aidl
+++ b/core/java/android/hardware/display/IDisplayManager.aidl
@@ -65,6 +65,9 @@
// Requires CONFIGURE_DISPLAY_COLOR_MODE
void requestColorMode(int displayId, int colorMode);
+ // Requires CONTROL_DISPLAY_SATURATION
+ void setSaturationLevel(float level);
+
// Requires CAPTURE_VIDEO_OUTPUT, CAPTURE_SECURE_VIDEO_OUTPUT, or an appropriate
// MediaProjection token for certain combinations of flags.
int createVirtualDisplay(in IVirtualDisplayCallback callback,