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Commit e943a896 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 1d96fbc4

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
@@ -72,9 +75,12 @@ public class OverScroller { 
    public OverScroller(Context context, Interpolator interpolator, boolean flywheel) {

        mInterpolator = interpolator;

        mFlywheel = flywheel;



        mScrollerX = new SplineOverScroller();

        mScrollerY = new SplineOverScroller();



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



        SplineOverScroller.initFromContext(context);

    }
@@ -375,6 +381,7 @@ 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);

    }
@@ -445,6 +452,7 @@ 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;
@@ -72,6 +73,8 @@ public class Scroller { 
    private float mDeceleration;

    private final float mPpi;



    private final PowerManager mPm;



    static {

        float x_min = 0.0f;

        for (int i = 0; i <= NB_SAMPLES; i++) {
@@ -129,6 +132,7 @@ public class Scroller { 
        mPpi = context.getResources().getDisplayMetrics().density * 160.0f;

        mDeceleration = computeDeceleration(ViewConfiguration.getScrollFriction());

        mFlywheel = flywheel;

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

    }



    /**
@@ -343,6 +347,7 @@ 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
+11 −1
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ import static android.content.pm.PackageManager.PERMISSION_GRANTED; 


import com.android.internal.app.HeavyWeightSwitcherActivity;

import com.android.internal.os.BatteryStatsImpl;

import com.android.server.PowerManagerService;

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



import android.app.Activity;
@@ -54,6 +55,7 @@ import android.os.ParcelFileDescriptor; 
import android.os.PowerManager;

import android.os.Process;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.SystemClock;

import android.os.SystemProperties;

import android.os.UserId;
@@ -306,6 +308,8 @@ final class ActivityStack { 


    private static final ActivityTrigger mActivityTrigger;



    private final PowerManagerService mPm;



    static {

        if (SystemProperties.QCOM_HARDWARE) {

            mActivityTrigger = new ActivityTrigger();
@@ -426,6 +430,7 @@ 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);

    }
@@ -1394,6 +1399,9 @@ 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);
@@ -2405,6 +2413,8 @@ final class ActivityStack { 


        int err = ActivityManager.START_SUCCESS;



        mPm.cpuBoost(1500000);



        ProcessRecord callerApp = null;

        if (caller != null) {

            callerApp = mService.getRecordForAppLocked(caller);