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Commit 6de4ca65 authored by Steve Kondik's avatar Steve Kondik
Browse files

Add CPU boosting hooks 

 * Boost CPU to max during scrolling
 * Boost CPU to max on activity start/resume
 * Inspired by a patch from CodeAuora.

Change-Id: I72f2c2851b01fbceabddead03a4c3a7a0526ca61
parent 14aadb0c

core/java/android/widget/OverScroller.java

+8 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ package android.widget; 


import android.content.Context;

import android.hardware.SensorManager;

import android.os.PowerManager;

import android.util.FloatMath;

import android.util.Log;

import android.view.ViewConfiguration;
@@ -43,6 +44,8 @@ public class OverScroller { 
    private static final int SCROLL_MODE = 0;

    private static final int FLING_MODE = 1;



    private final PowerManager mPm;



    /**

     * Creates an OverScroller with a viscous fluid scroll interpolator and flywheel.

     * @param context
@@ -72,8 +75,11 @@ public class OverScroller { 
    public OverScroller(Context context, Interpolator interpolator, boolean flywheel) {

        mInterpolator = interpolator;

        mFlywheel = flywheel;



        mScrollerX = new SplineOverScroller(context);

        mScrollerY = new SplineOverScroller(context);



        mPm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);

    }



    /**
@@ -373,6 +379,7 @@ public class OverScroller { 
     */

    public void startScroll(int startX, int startY, int dx, int dy, int duration) {

        mMode = SCROLL_MODE;

        mPm.cpuBoost(1500000);

        mScrollerX.startScroll(startX, dx, duration);

        mScrollerY.startScroll(startY, dy, duration);

    }
@@ -443,6 +450,7 @@ public class OverScroller { 
            }

        }



        mPm.cpuBoost(1500000);

        mMode = FLING_MODE;

        mScrollerX.fling(startX, velocityX, minX, maxX, overX);

        mScrollerY.fling(startY, velocityY, minY, maxY, overY);

core/java/android/widget/Scroller.java

+5 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ package android.widget; 
import android.content.Context;

import android.hardware.SensorManager;

import android.os.Build;

import android.os.PowerManager;

import android.util.FloatMath;

import android.view.ViewConfiguration;

import android.view.animation.AnimationUtils;
@@ -83,6 +84,8 @@ public class Scroller { 
    // A context-specific coefficient adjusted to physical values.

    private float mPhysicalCoeff;



    private final PowerManager mPm;



    static {

        float x_min = 0.0f;

        float y_min = 0.0f;
@@ -156,6 +159,7 @@ public class Scroller { 
        mFlywheel = flywheel;



        mPhysicalCoeff = computeDeceleration(0.84f); // look and feel tuning

        mPm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);

    }



    /**
@@ -379,6 +383,7 @@ public class Scroller { 
        mDeltaX = dx;

        mDeltaY = dy;

        mDurationReciprocal = 1.0f / (float) mDuration;

        mPm.cpuBoost(1500000);

    }



    /**

services/java/com/android/server/am/ActivityStack.java

100755 → 100644
+10 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ import static android.content.pm.PackageManager.PERMISSION_GRANTED; 
import com.android.internal.app.HeavyWeightSwitcherActivity;

import com.android.internal.os.BatteryStatsImpl;

import com.android.server.am.ActivityManagerService.PendingActivityLaunch;

import com.android.server.power.PowerManagerService;



import android.app.Activity;

import android.app.ActivityManager;
@@ -53,6 +54,7 @@ import android.os.Message; 
import android.os.ParcelFileDescriptor;

import android.os.PowerManager;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.SystemClock;

import android.os.SystemProperties;

import android.os.UserHandle;
@@ -310,6 +312,8 @@ final class ActivityStack { 


    private static final ActivityTrigger mActivityTrigger;



    private final PowerManagerService mPm;



    static {

        if (SystemProperties.QCOM_HARDWARE) {

            mActivityTrigger = new ActivityTrigger();
@@ -430,6 +434,7 @@ final class ActivityStack { 
            (PowerManager)context.getSystemService(Context.POWER_SERVICE);

        mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep");

        mLaunchingActivity = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch");

        mPm = (PowerManagerService) ServiceManager.getService("power");

        mLaunchingActivity.setReferenceCounted(false);

    }
@@ -1416,6 +1421,9 @@ final class ActivityStack { 
    }



    final boolean resumeTopActivityLocked(ActivityRecord prev, Bundle options) {



        mPm.cpuBoost(1500000);



        // Find the first activity that is not finishing.

        ActivityRecord next = topRunningActivityLocked(null);
@@ -2476,6 +2484,8 @@ final class ActivityStack { 


        int err = ActivityManager.START_SUCCESS;



        mPm.cpuBoost(1500000);



        ProcessRecord callerApp = null;

        if (caller != null) {

            callerApp = mService.getRecordForAppLocked(caller);