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Commit 61038ddb authored by Prashant Malani's avatar Prashant Malani Committed by Julius D'souza
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DO NOT MERGE ANYWHERE: Make display brightness ramp rate fast configurable 

Add an overlay setting, and keep the default to its existing value of
200.

Bug: 26552257
Change-Id: Ifd29d80e28e57c5cfc640d519a62144ab5e963fa
parent 0d05028b

core/res/res/values/config.xml

+3 −0
Original line number Diff line number Diff line
@@ -538,6 +538,9 @@ 
         Software implementation will be used if config_hardware_auto_brightness_available is not set -->

    <bool name="config_automatic_brightness_available">false</bool>



    <!-- Fast brightness animation ramp rate -->

    <integer translatable="false" name="config_brightness_ramp_rate_fast">200</integer>



    <!-- Don't name config resources like this.  It should look like config_annoyDianne -->

    <bool name="config_annoy_dianne">true</bool>

core/res/res/values/symbols.xml

+1 −0
Original line number Diff line number Diff line
@@ -1721,6 +1721,7 @@ 
  <java-symbol type="integer" name="config_shutdownBatteryTemperature" />

  <java-symbol type="integer" name="config_undockedHdmiRotation" />

  <java-symbol type="integer" name="config_virtualKeyQuietTimeMillis" />

  <java-symbol type="integer" name="config_brightness_ramp_rate_fast" />

  <java-symbol type="layout" name="am_compat_mode_dialog" />

  <java-symbol type="layout" name="launch_warning" />

  <java-symbol type="layout" name="safe_mode" />

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

+7 −2
Original line number Diff line number Diff line
@@ -103,7 +103,6 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call 
    private static final float TYPICAL_PROXIMITY_THRESHOLD = 5.0f;



    // Brightness animation ramp rate in brightness units per second.

    private static final int BRIGHTNESS_RAMP_RATE_FAST = 200;

    private static final int BRIGHTNESS_RAMP_RATE_SLOW = 40;



    private static final int REPORTED_TO_POLICY_SCREEN_OFF = 0;
@@ -244,6 +243,9 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call 
    private boolean mAppliedDimming;

    private boolean mAppliedLowPower;



    // Brightness ramp rate fast.

    private final int mBrightnessRampRateFast;



    // The controller for the automatic brightness level.

    private AutomaticBrightnessController mAutomaticBrightnessController;
@@ -303,6 +305,9 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call 
        mAllowAutoBrightnessWhileDozingConfig = resources.getBoolean(

                com.android.internal.R.bool.config_allowAutoBrightnessWhileDozing);



        mBrightnessRampRateFast = resources.getInteger(

                com.android.internal.R.integer.config_brightness_ramp_rate_fast);



        int lightSensorRate = resources.getInteger(

                com.android.internal.R.integer.config_autoBrightnessLightSensorRate);

        long brighteningLightDebounce = resources.getInteger(
@@ -686,7 +691,7 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call 
        if (!mPendingScreenOff) {

            if (state == Display.STATE_ON || state == Display.STATE_DOZE) {

                animateScreenBrightness(brightness,

                        slowChange ? BRIGHTNESS_RAMP_RATE_SLOW : BRIGHTNESS_RAMP_RATE_FAST);

                        slowChange ? BRIGHTNESS_RAMP_RATE_SLOW : mBrightnessRampRateFast);

            } else {

                animateScreenBrightness(brightness, 0);

            }