auto import from //depot/cupcake/@135843

1 files changed, 86 insertions, 0 deletions

diff --git a/tools/layoutlib/bridge/src/android/util/FloatMath.java b/tools/layoutlib/bridge/src/android/util/FloatMath.java
new file mode 100644
index 000000000000..aae44f261e18
--- /dev/null
+++ b/tools/layoutlib/bridge/src/android/util/FloatMath.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.util;
+
+/**
+ * Reimplements _Original_FloatMath with the standard libraries.
+ * 
+ * Math routines similar to those found in {@link java.lang.Math}. Performs
+ * computations on {@code float} values directly without incurring the overhead
+ * of conversions to and from {@code double}.
+ *
+ * <p>On one platform, {@code FloatMath.sqrt(100)} executes in one third of the
+ * time required by {@code java.lang.Math.sqrt(100)}.</p>
+ */
+public class FloatMath {
+
+    /** Prevents instantiation. */
+    private FloatMath() {}
+
+    /**
+     * Returns the float conversion of the most positive (i.e. closest to
+     * positive infinity) integer value which is less than the argument.
+     *
+     * @param value to be converted
+     * @return the floor of value
+     */
+    public static float floor(float value) {
+        return (float)Math.floor(value);
+    }
+
+    /**
+     * Returns the float conversion of the most negative (i.e. closest to
+     * negative infinity) integer value which is greater than the argument.
+     *
+     * @param value to be converted
+     * @return the ceiling of value
+     */
+    public static float ceil(float value) {
+        return (float)Math.ceil(value);
+    }
+
+    /**
+     * Returns the closest float approximation of the sine of the argument.
+     *
+     * @param angle to compute the cosine of, in radians
+     * @return the sine of angle
+     */
+    public static  float sin(float angle) {
+        return (float)Math.sin(angle);
+    }
+
+    /**
+     * Returns the closest float approximation of the cosine of the argument.
+     *
+     * @param angle to compute the cosine of, in radians
+     * @return the cosine of angle
+     */
+    public static float cos(float angle) {
+        return (float)Math.cos(angle);
+    }
+
+    /**
+     * Returns the closest float approximation of the square root of the
+     * argument.
+     *
+     * @param value to compute sqrt of
+     * @return the square root of value
+     */
+    public static float sqrt(float value) {
+        return (float)Math.sqrt(value);
+    }
+}