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Commit 99e6d43d authored by Prashant Malani's avatar Prashant Malani
Browse files

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 af64f634

core/res/res/values/config.xml

+3 −0
Original line number Diff line number Diff line
@@ -578,6 +578,9 @@ 
         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
@@ -1766,6 +1766,7 @@ 
  <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(
@@ -698,7 +703,7 @@ 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);

            }