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Merge "Screen Brightening/Darkening thresholds update" into 24D1-dev

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Treehugger Robot 2024-05-07 14:10:18 +00:00 • committed by Android (Google) Code Review
commit f8784de7c9
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overlay/frameworks/base/core/res/res/values/config.xml
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@ -416,6 +416,55 @@
<item>2050</item> <!-- 100000+ -->
</array>
<!-- Array of screen brightness threshold values. This is used for determining hysteresis
constraint values by calculating the index to use for lookup and then setting the
constraint value to the corresponding value of the array. The new brightening hysteresis
constraint value is the n-th element of config_screenBrighteningThresholds, and the new
darkening hysteresis constraint value is the n-th element of
config_screenDarkeningThresholds.
Historically, it has been assumed that this will be an integer array with values in the
range of [0, 255]. However, it is now assumed to be a float array with values in the
range of [0, 1]. To accommodate both the possibilities, we internally check the scale on
which the thresholds are defined, and calibrate it accordingly.
The (zero-based) index is calculated as follows: (MAX is the largest index of the array)
condition calculated index
value < level[0] 0
level[n] <= value < level[n+1] n+1
level[MAX] <= value MAX+1 -->
<array name="config_screenThresholdLevels">
<item>0.5</item>
<item>0.6</item>
<item>0.9</item>
</array>
<!-- Array of hysteresis constraint values for brightening, represented as tenths of a
percent. The length of this array is assumed to be one greater than
config_screenThresholdLevels. The brightening threshold is calculated as
screenBrightness * (1.0f + CONSTRAINT_VALUE). When the new screen brightness is higher
than this threshold, it is applied. See the config_screenThresholdLevels description for
how the constraint value is chosen. -->
<integer-array name="config_screenBrighteningThresholds">
<item>100</item>
<item>100</item>
<item>40</item>
<item>10</item>
</integer-array>
<!-- Array of hysteresis constraint values for darkening, represented as tenths of a
percent. The length of this array is assumed to be one greater than
config_screenThresholdLevels. The darkening threshold is calculated as
screenBrightness * (1.0f - CONSTRAINT_VALUE). When the new screen brightness is lower than
this threshold, it is applied. See the config_screenThresholdLevels description for how
the constraint value is chosen. -->
<integer-array name="config_screenDarkeningThresholds">
<item>200</item>
<item>200</item>
<item>200</item>
<item>200</item>
</integer-array>
<!-- The identifier of the satellite's SIM profile. The identifier is composed of MCC and MNC
of the satellite PLMN with the format "mccmnc". -->
<string name="config_satellite_sim_plmn_identifier">90198</string>