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Commit afad304c authored by Kriti Dang's avatar Kriti Dang
Browse files

Add DisplayManager API to query if the device supports seamless refresh 

rate switching

It was added as a PackageManager flag earlier. Removing from there,
because PackageManagere flags are only recommendded when applications need them to filter whether they can run on a given device.

Bug: 186189147
Test: m
Change-Id: I16475b750d223caf064c413b18851b302eb4e223
parent 2732be52

core/api/current.txt

+0 −1
Original line number Diff line number Diff line
@@ -12165,7 +12165,6 @@ package android.content.pm { 
    field public static final String FEATURE_RAM_NORMAL = "android.hardware.ram.normal";

    field public static final String FEATURE_SCREEN_LANDSCAPE = "android.hardware.screen.landscape";

    field public static final String FEATURE_SCREEN_PORTRAIT = "android.hardware.screen.portrait";

    field public static final String FEATURE_SEAMLESS_REFRESH_RATE_SWITCHING = "android.software.seamless_refresh_rate_switching";

    field public static final String FEATURE_SECURELY_REMOVES_USERS = "android.software.securely_removes_users";

    field public static final String FEATURE_SECURE_LOCK_SCREEN = "android.software.secure_lock_screen";

    field public static final String FEATURE_SECURITY_MODEL_COMPATIBLE = "android.hardware.security.model.compatible";

core/java/android/content/pm/PackageManager.java

+0 −8
Original line number Diff line number Diff line
@@ -2978,14 +2978,6 @@ public abstract class PackageManager { 
    public static final String FEATURE_VIRTUALIZATION_FRAMEWORK =

            "android.software.virtualization_framework";



    /**

     * Feature for {@link #getSystemAvailableFeatures()} and {@link #hasSystemFeature(String)}.

     * This feature indicates whether device supports seamless refresh rate switching.

     */

    @SdkConstant(SdkConstantType.FEATURE)

    public static final String FEATURE_SEAMLESS_REFRESH_RATE_SWITCHING

            = "android.software.seamless_refresh_rate_switching";



    /**

     * Feature for {@link #getSystemAvailableFeatures} and

     * {@link #hasSystemFeature(String, int)}: If this feature is supported, the Vulkan

core/java/android/hardware/display/DisplayManager.java

+18 −0
Original line number Diff line number Diff line
@@ -50,6 +50,8 @@ import android.util.SparseArray; 
import android.view.Display;

import android.view.Surface;



import com.android.internal.R;



import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.util.ArrayList;
@@ -1309,6 +1311,22 @@ public final class DisplayManager { 
        return mGlobal.shouldAlwaysRespectAppRequestedMode();

    }



    /**

     * Returns whether device supports seamless refresh rate switching.

     *

     * Match content frame rate setting has three options: seamless, non-seamless and never.

     * The seamless option does nothing if the device does not support seamless refresh rate

     * switching. This API is used in such a case to hide the seamless option.

     *

     * @see DisplayManager#setRefreshRateSwitchingType

     * @see DisplayManager#getMatchContentFrameRateUserPreference

     * @hide

     */

    public boolean supportsSeamlessRefreshRateSwitching() {

        return mContext.getResources().getBoolean(

                R.bool.config_supportsSeamlessRefreshRateSwitching);

    }



    /**

     * Sets the refresh rate switching type.

     * This matches {@link android.provider.Settings.Secure.MATCH_CONTENT_FRAME_RATE}

core/res/res/values/config.xml

+3 −0
Original line number Diff line number Diff line
@@ -4411,6 +4411,9 @@ 
    <!-- Allow SystemUI to show the shutdown dialog -->

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



    <!-- Flag indicating whether seamless refresh rate switching is supported by a device. -->

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



    <!-- The stable device width and height in pixels. If these aren't set to a positive number

         then the device will use the width and height of the default display the first time it's

         booted.  -->

core/res/res/values/symbols.xml

+1 −0
Original line number Diff line number Diff line
@@ -3879,6 +3879,7 @@ 
  <java-symbol type="id" name="messaging_group_icon_container" />

  <java-symbol type="id" name="messaging_group_sending_progress" />

  <java-symbol type="id" name="messaging_group_sending_progress_container" />

  <java-symbol type="bool" name="config_supportsSeamlessRefreshRateSwitching" />



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

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