Adding operations to reflected Renderscript class

Renderscript expose its native types back to the Android
system through a set of classes defined within the renderscript
package. These classes provides no easy mean to manipulate
data they represent. It would be convinient to be able to manipulate
the data stored within an allocation via these classes directly
instead of having to marshall them into native Java objects.

This commit adds such operations to the existing exposed vector types.

Change-Id: I1845df1368a82f0d39b36416c83938c7160f6a3f

1 files changed, 449 insertions, 16 deletions

diff --git a/graphics/java/android/renderscript/Short3.java b/graphics/java/android/renderscript/Short3.java
index 49de05ee58f3..661db0a89f3d 100644
--- a/graphics/java/android/renderscript/Short3.java
+++ b/graphics/java/android/renderscript/Short3.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 The Android Open Source Project
+ * Copyright (C) 2013 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.
@@ -16,29 +16,462 @@
 
 package android.renderscript;
 
-import java.lang.Math;
-import android.util.Log;
-
-
 /**
- * Class for exposing the native RenderScript short3 type back to the Android system.
- *
- **/
+ * Vector version of the basic short type.
+ * Provides three short fields packed.
+ */
 public class Short3 {
+    public short x;
+    public short y;
+    public short z;
+
     public Short3() {
     }
 
-    public Short3(short initX, short initY, short initZ) {
-        x = initX;
-        y = initY;
-        z = initZ;
+    /** @hide */
+    public Short3(short i) {
+        this.x = this.y = this.z = i;
     }
 
-    public short x;
-    public short y;
-    public short z;
-}
+    public Short3(short x, short y, short z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+
+    /** @hide */
+    public Short3(Short3 source) {
+        this.x = source.x;
+        this.y = source.y;
+        this.z = source.z;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param a
+     */
+    public void add(Short3 a) {
+        this.x += a.x;
+        this.y += a.y;
+        this.z += a.z;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 add(Short3 a, Short3 b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x + b.x);
+        result.y = (short)(a.y + b.y);
+        result.z = (short)(a.z + b.z);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param value
+     */
+    public void add(short value) {
+        x += value;
+        y += value;
+        z += value;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 add(Short3 a, short b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x + b);
+        result.y = (short)(a.y + b);
+        result.z = (short)(a.z + b);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param a
+     */
+    public void sub(Short3 a) {
+        this.x -= a.x;
+        this.y -= a.y;
+        this.z -= a.z;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 sub(Short3 a, Short3 b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x - b.x);
+        result.y = (short)(a.y - b.y);
+        result.z = (short)(a.z - b.z);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param value
+     */
+    public void sub(short value) {
+        x -= value;
+        y -= value;
+        z -= value;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 sub(Short3 a, short b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x - b);
+        result.y = (short)(a.y - b);
+        result.z = (short)(a.z - b);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param a
+     */
+    public void mul(Short3 a) {
+        this.x *= a.x;
+        this.y *= a.y;
+        this.z *= a.z;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 mul(Short3 a, Short3 b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x * b.x);
+        result.y = (short)(a.y * b.y);
+        result.z = (short)(a.z * b.z);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param value
+     */
+    public void mul(short value) {
+        x *= value;
+        y *= value;
+        z *= value;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 mul(Short3 a, short b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x * b);
+        result.y = (short)(a.y * b);
+        result.z = (short)(a.z * b);
 
+        return result;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param a
+     */
+    public void div(Short3 a) {
+        this.x /= a.x;
+        this.y /= a.y;
+        this.z /= a.z;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 div(Short3 a, Short3 b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x / b.x);
+        result.y = (short)(a.y / b.y);
+        result.z = (short)(a.z / b.z);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param value
+     */
+    public void div(short value) {
+        x /= value;
+        y /= value;
+        z /= value;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 div(Short3 a, short b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x / b);
+        result.y = (short)(a.y / b);
+        result.z = (short)(a.z / b);
+
+        return result;
+    }
 
+    /** @hide
+     * Vector Modulo
+     *
+     * @param a
+     */
+    public void mod(Short3 a) {
+        this.x %= a.x;
+        this.y %= a.y;
+        this.z %= a.z;
+    }
+
+    /** @hide
+     * Vector Modulo
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 mod(Short3 a, Short3 b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x % b.x);
+        result.y = (short)(a.y % b.y);
+        result.z = (short)(a.z % b.z);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector Modulo
+     *
+     * @param value
+     */
+    public void mod(short value) {
+        x %= value;
+        y %= value;
+        z %= value;
+    }
 
+    /** @hide
+     * Vector Modulo
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short3 mod(Short3 a, short b) {
+        Short3 result = new Short3();
+        result.x = (short)(a.x % b);
+        result.y = (short)(a.y % b);
+        result.z = (short)(a.z % b);
 
+        return result;
+    }
+
+    /** @hide
+     * get vector length
+     *
+     * @return
+     */
+    public short length() {
+        return 3;
+    }
+
+    /** @hide
+     * set vector negate
+     */
+    public void negate() {
+        this.x = (short)(-x);
+        this.y = (short)(-y);
+        this.z = (short)(-z);
+    }
+
+    /** @hide
+     * Vector dot Product
+     *
+     * @param a
+     * @return
+     */
+    public short dotProduct(Short3 a) {
+        return (short)((x * a.x) + (y * a.y) + (z * a.z));
+    }
+
+    /** @hide
+     * Vector dot Product
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static short dotProduct(Short3 a, Short3 b) {
+        return (short)((b.x * a.x) + (b.y * a.y) + (b.z * a.z));
+    }
+
+    /** @hide
+     * Vector add Multiple
+     *
+     * @param a
+     * @param factor
+     */
+    public void addMultiple(Short3 a, short factor) {
+        x += a.x * factor;
+        y += a.y * factor;
+        z += a.z * factor;
+    }
+
+    /** @hide
+     * set vector value by Short3
+     *
+     * @param a
+     */
+    public void set(Short3 a) {
+        this.x = a.x;
+        this.y = a.y;
+        this.z = a.z;
+    }
+
+    /** @hide
+     * set the vector field value by Short
+     *
+     * @param a
+     * @param b
+     * @param c
+     */
+    public void setValues(short a, short b, short c) {
+        this.x = a;
+        this.y = b;
+        this.z = c;
+    }
+
+    /** @hide
+     * return the element sum of vector
+     *
+     * @return
+     */
+    public short elementSum() {
+        return (short)(x + y + z);
+    }
+
+    /** @hide
+     * get the vector field value by index
+     *
+     * @param i
+     * @return
+     */
+    public short get(int i) {
+        switch (i) {
+        case 0:
+            return (short)(x);
+        case 1:
+            return (short)(y);
+        case 2:
+            return (short)(z);
+        default:
+            throw new IndexOutOfBoundsException("Index: i");
+        }
+    }
+
+    /** @hide
+     * set the vector field value by index
+     *
+     * @param i
+     * @param value
+     */
+    public void setAt(int i, short value) {
+        switch (i) {
+        case 0:
+            x = value;
+            return;
+        case 1:
+            y = value;
+            return;
+        case 2:
+            z = value;
+            return;
+        default:
+            throw new IndexOutOfBoundsException("Index: i");
+        }
+    }
+
+    /** @hide
+     * add the vector field value by index
+     *
+     * @param i
+     * @param value
+     */
+    public void addAt(int i, short value) {
+        switch (i) {
+        case 0:
+            x += value;
+            return;
+        case 1:
+            y += value;
+            return;
+        case 2:
+            z += value;
+            return;
+        default:
+            throw new IndexOutOfBoundsException("Index: i");
+        }
+    }
+
+    /** @hide
+     * copy the vector to short array
+     *
+     * @param data
+     * @param offset
+     */
+    public void copyTo(short[] data, int offset) {
+        data[offset] = (short)(x);
+        data[offset + 1] = (short)(y);
+        data[offset + 2] = (short)(z);
+    }
+}