Merge "Perf: Add boost for scroller(horizontal scroll use cases)" (8c4eb382) · Commits · e / os / android_frameworks_base

core/java/android/widget/Scroller.java

100644 → 100755

+20 −1

Original line number	Diff line number	Diff line
		@@ -23,7 +23,7 @@ import android.util.FloatMath;
		import android.view.ViewConfiguration;
		import android.view.animation.AnimationUtils;
		import android.view.animation.Interpolator;

		import org.codeaurora.Performance;

		/**
		* <p>This class encapsulates scrolling. You can use scrollers ({@link Scroller}
		@@ -108,6 +108,13 @@ public class Scroller {
		private float mDeceleration;
		private final float mPpi;

		/*
		* Perf boost related variables
		* Enabled/Disabled using config_enableCpuBoostForScroller
		* true value turns it on, by default will be turned off
		*/
		private Performance mPerf = null;

		// A context-specific coefficient adjusted to physical values.
		private float mPhysicalCoeff;

		@@ -177,6 +184,7 @@ public class Scroller {
		* not to support progressive "flywheel" behavior in flinging.
		*/
		public Scroller(Context context, Interpolator interpolator, boolean flywheel) {
		boolean bIsPerfBoostEnabled = false;
		mFinished = true;
		mInterpolator = interpolator;
		mPpi = context.getResources().getDisplayMetrics().density * 160.0f;
		@@ -184,6 +192,13 @@ public class Scroller {
		mFlywheel = flywheel;

		mPhysicalCoeff = computeDeceleration(0.84f); // look and feel tuning
		bIsPerfBoostEnabled = context.getResources().getBoolean(
		com.android.internal.R.bool.config_enableCpuBoostForScroller);

		if (mPerf == null && bIsPerfBoostEnabled) {
		mPerf = new Performance();
		}

		}

		/**
		@@ -407,6 +422,10 @@ public class Scroller {
		mDeltaX = dx;
		mDeltaY = dy;
		mDurationReciprocal = 1.0f / (float) mDuration;

		if ((mPerf != null) && (duration != 0)) {
		mPerf.perfLockAcquire(mDuration, mPerf.CPUS_ON_2, 0x20B, 0x30B,0x1C00);
		}
		}

		/**

core/res/res/values/config.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -1330,6 +1330,9 @@
		<!-- Whether cpu boost is enabled for overscroller fling. -->
		<bool name="config_enableCpuBoostForOverScrollerFling">false</bool>

		<!-- Whether cpu boost is enabled for horizontal scroll. -->
		<bool name="config_enableCpuBoostForScroller">false</bool>

		<!-- User display names for app ops codes -->
		<string-array name="app_ops_labels">
		<item>Trying to access location</item>

core/res/res/values/symbols.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -1809,6 +1809,9 @@
		<java-symbol type="bool" name="use_motion_accel" />
		<java-symbol type="bool" name="config_setup_mms_data" />

		<!-- cpu boost for horizontal scroll -->
		<java-symbol type="bool" name="config_enableCpuBoostForScroller" />

		<!-- Configuration to play sms ringtone during MO/MT call -->
		<java-symbol type="bool" name="config_sms_ringtone_incall" />
		<java-symbol type="string" name="config_partial_segment_expire_age" />