Merge "Layoutlib native delegate: FloatMath."
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Android (Google) Code Review
commit
f5a6c67fbe
@@ -16,20 +16,22 @@
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package android.util;
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import com.android.layoutlib.bridge.DelegateManager;
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/**
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* Reimplements _Original_FloatMath with the standard libraries.
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*
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* Math routines similar to those found in {@link java.lang.Math}. Performs
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* computations on {@code float} values directly without incurring the overhead
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* of conversions to and from {@code double}.
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* Delegate implementing the native methods of android.util.FloatMath
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*
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* Through the layoutlib_create tool, the original native methods of FloatMath have been replaced
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* by calls to methods of the same name in this delegate class.
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*
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* Because it's a stateless class to start with, there's no need to keep a {@link DelegateManager}
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* around to map int to instance of the delegate.
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*
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* <p>On one platform, {@code FloatMath.sqrt(100)} executes in one third of the
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* time required by {@code java.lang.Math.sqrt(100)}.</p>
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*/
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public class FloatMath {
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/*package*/ final class FloatMath_Delegate {
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/** Prevents instantiation. */
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private FloatMath() {}
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private FloatMath_Delegate() {}
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/**
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* Returns the float conversion of the most positive (i.e. closest to
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@@ -38,7 +40,7 @@ public class FloatMath {
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* @param value to be converted
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* @return the floor of value
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*/
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public static float floor(float value) {
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/*package*/ static float floor(float value) {
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return (float)Math.floor(value);
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}
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@@ -49,7 +51,7 @@ public class FloatMath {
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* @param value to be converted
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* @return the ceiling of value
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*/
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public static float ceil(float value) {
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/*package*/ static float ceil(float value) {
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return (float)Math.ceil(value);
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}
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@@ -59,7 +61,7 @@ public class FloatMath {
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* @param angle to compute the cosine of, in radians
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* @return the sine of angle
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*/
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public static float sin(float angle) {
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/*package*/ static float sin(float angle) {
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return (float)Math.sin(angle);
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}
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@@ -69,7 +71,7 @@ public class FloatMath {
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* @param angle to compute the cosine of, in radians
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* @return the cosine of angle
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*/
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public static float cos(float angle) {
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/*package*/ static float cos(float angle) {
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return (float)Math.cos(angle);
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}
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@@ -80,7 +82,7 @@ public class FloatMath {
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* @param value to compute sqrt of
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* @return the square root of value
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*/
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public static float sqrt(float value) {
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/*package*/ static float sqrt(float value) {
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return (float)Math.sqrt(value);
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}
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}
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@@ -116,6 +116,7 @@ public final class CreateInfo implements ICreateInfo {
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"android.graphics.SweepGradient",
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"android.graphics.Typeface",
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"android.graphics.Xfermode",
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"android.util.FloatMath",
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};
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/**
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@@ -137,7 +138,6 @@ public final class CreateInfo implements ICreateInfo {
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"android.graphics.BitmapFactory", "android.graphics._Original_BitmapFactory",
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"android.graphics.Path", "android.graphics._Original_Path",
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"android.os.ServiceManager", "android.os._Original_ServiceManager",
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"android.util.FloatMath", "android.util._Original_FloatMath",
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"android.view.SurfaceView", "android.view._Original_SurfaceView",
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"android.view.accessibility.AccessibilityManager", "android.view.accessibility._Original_AccessibilityManager",
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};
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