Slider always represents absolute brightness
Currently the slider represents a gamma adjustment to the brightness
curve when auto brightness is enabled and the absolute screen brightness
when it's not. This is a fairly confusing behavior to most people, so
this consolidates them to a single behavior: the slider always
represents the current brightness and auto-brightness will automatically
adjust it.
This also moves a bunch of the brightness methods from PowerManager over
to DisplayManager, since it's really the DisplayPowerController that's
responsible for determining and setting the display brightness.
Test: atest com.android.server.display.BrightnessMappingStrategyTest
Bug: 69406898
Change-Id: I73b5982809a94cd50d563426a72d7965e923c994
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 081c92c..806d30e 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2992,6 +2992,11 @@
<permission android:name="android.permission.CONFIGURE_DISPLAY_BRIGHTNESS"
android:protectionLevel="signature|privileged|development" />
+ <!-- Allows an application to control the system's display brightness
+ @hide -->
+ <permission android:name="android.permission.CONTROL_DISPLAY_BRIGHTNESS"
+ android:protectionLevel="signature" />
+
<!-- @SystemApi Allows an application to control VPN.
<p>Not for use by third-party applications.</p>
@hide -->