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Update the documentation for brightness configuration.

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am: 4db8e85edd

Change-Id: I9b2fcfc3482e4606af0280febf5ec3a99a20f5ca
This commit is contained in:
Michael Wright
2018-03-20 00:52:23 +00:00
committed by android-build-merger
parent c6e22f1e46 4db8e85edd
commit 06260dfeee
1 changed files with 16 additions and 6 deletions
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22
overlay/frameworks/base/core/res/res/values/config.xml
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@@ -26,14 +26,24 @@
<!-- MMS user agent prolfile url -->
<string name="config_mms_user_agent_profile_url" translatable="false">http://www.gstatic.com/android/sms/G011C.xml</string>
<!-- Array of light sensor LUX values to define our levels for auto backlight brightness support.
The N entries of this array define N 1 zones as follows:
<!-- Array of light sensor lux values to define our levels for auto backlight brightness support.
The N entries of this array define N + 1 control points as follows:
(1-based arrays)
Zone 0: 0 <= LUX < array[0]
Zone 1: array[0] <= LUX < array[1]
Point 1: (0, value[1]): lux <= 0
Point 2: (level[1], value[2]): 0 < lux <= level[1]
Point 3: (level[2], value[3]): level[2] < lux <= level[3]
...
Zone N: array[N - 1] <= LUX < array[N]
Zone N + 1 array[N] <= LUX < infinity
Point N+1: (level[N], value[N+1]): level[N] < lux
The control points must be strictly increasing. Each control point
corresponds to an entry in the brightness backlight values arrays.
For example, if lux == level[1] (first element of the levels array)
then the brightness will be determined by value[2] (second element
of the brightness values array).
Spline interpolation is used to determine the auto-brightness
backlight values for lux levels between these control points.
Must be overridden in platform specific overlays -->
<integer-array name="config_autoBrightnessLevels">