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, 487 insertions, 18 deletions

diff --git a/graphics/java/android/renderscript/Short4.java b/graphics/java/android/renderscript/Short4.java
index a7807a4f9d95..a2d74f2ccf94 100644
--- a/graphics/java/android/renderscript/Short4.java
+++ b/graphics/java/android/renderscript/Short4.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.
@@ -16,30 +16,499 @@
 
 package android.renderscript;
 
-import java.lang.Math;
-import android.util.Log;
-
-
 /**
- * Class for exposing the native RenderScript short4 type back to the Android system.
- *
- **/
+ * Vector version of the basic short type.
+ * Provides four short fields packed.
+ */
 public class Short4 {
+    public short x;
+    public short y;
+    public short z;
+    public short w;
+
     public Short4() {
     }
 
-    public Short4(short initX, short initY, short initZ, short initW) {
-        x = initX;
-        y = initY;
-        z = initZ;
-        w = initW;
+    /** @hide */
+    public Short4(short i) {
+        this.x = this.y = this.z = this.w = i;
     }
 
-    public short x;
-    public short y;
-    public short z;
-    public short w;
-}
+    public Short4(short x, short y, short z, short w) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+        this.w = w;
+    }
 
+    /** @hide */
+    public Short4(Short4 source) {
+        this.x = source.x;
+        this.y = source.y;
+        this.z = source.z;
+        this.w = source.w;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param a
+     */
+    public void add(Short4 a) {
+        this.x += a.x;
+        this.y += a.y;
+        this.z += a.z;
+        this.w += a.w;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 add(Short4 a, Short4 b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x + b.x);
+        result.y = (short)(a.y + b.y);
+        result.z = (short)(a.z + b.z);
+        result.w = (short)(a.w + b.w);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector add
+     *
+     * @param value
+     */
+    public void add(short value) {
+        x += value;
+        y += value;
+        z += value;
+        w += value;
+    }
 
+    /** @hide
+     * Vector add
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 add(Short4 a, short b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x + b);
+        result.y = (short)(a.y + b);
+        result.z = (short)(a.z + b);
+        result.w = (short)(a.w + b);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param a
+     */
+    public void sub(Short4 a) {
+        this.x -= a.x;
+        this.y -= a.y;
+        this.z -= a.z;
+        this.w -= a.w;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 sub(Short4 a, Short4 b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x - b.x);
+        result.y = (short)(a.y - b.y);
+        result.z = (short)(a.z - b.z);
+        result.w = (short)(a.w - b.w);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param value
+     */
+    public void sub(short value) {
+        x -= value;
+        y -= value;
+        z -= value;
+        w -= value;
+    }
+
+    /** @hide
+     * Vector subtraction
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 sub(Short4 a, short b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x - b);
+        result.y = (short)(a.y - b);
+        result.z = (short)(a.z - b);
+        result.w = (short)(a.w - b);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param a
+     */
+    public void mul(Short4 a) {
+        this.x *= a.x;
+        this.y *= a.y;
+        this.z *= a.z;
+        this.w *= a.w;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 mul(Short4 a, Short4 b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x * b.x);
+        result.y = (short)(a.y * b.y);
+        result.z = (short)(a.z * b.z);
+        result.w = (short)(a.w * b.w);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param value
+     */
+    public void mul(short value) {
+        x *= value;
+        y *= value;
+        z *= value;
+        w *= value;
+    }
+
+    /** @hide
+     * Vector multiplication
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 mul(Short4 a, short b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x * b);
+        result.y = (short)(a.y * b);
+        result.z = (short)(a.z * b);
+        result.w = (short)(a.w * b);
+
+        return result;
+    }
 
+    /** @hide
+     * Vector division
+     *
+     * @param a
+     */
+    public void div(Short4 a) {
+        this.x /= a.x;
+        this.y /= a.y;
+        this.z /= a.z;
+        this.w /= a.w;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 div(Short4 a, Short4 b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x / b.x);
+        result.y = (short)(a.y / b.y);
+        result.z = (short)(a.z / b.z);
+        result.w = (short)(a.w / b.w);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param value
+     */
+    public void div(short value) {
+        x /= value;
+        y /= value;
+        z /= value;
+        w /= value;
+    }
+
+    /** @hide
+     * Vector division
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 div(Short4 a, short b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x / b);
+        result.y = (short)(a.y / b);
+        result.z = (short)(a.z / b);
+        result.w = (short)(a.w / b);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector Modulo
+     *
+     * @param a
+     */
+    public void mod(Short4 a) {
+        this.x %= a.x;
+        this.y %= a.y;
+        this.z %= a.z;
+        this.w %= a.w;
+    }
+
+    /** @hide
+     * Vector Modulo
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 mod(Short4 a, Short4 b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x % b.x);
+        result.y = (short)(a.y % b.y);
+        result.z = (short)(a.z % b.z);
+        result.w = (short)(a.w % b.w);
+
+        return result;
+    }
+
+    /** @hide
+     * Vector Modulo
+     *
+     * @param value
+     */
+    public void mod(short value) {
+        x %= value;
+        y %= value;
+        z %= value;
+        w %= value;
+    }
+
+    /** @hide
+     * Vector Modulo
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static Short4 mod(Short4 a, short b) {
+        Short4 result = new Short4();
+        result.x = (short)(a.x % b);
+        result.y = (short)(a.y % b);
+        result.z = (short)(a.z % b);
+        result.w = (short)(a.w % b);
+
+        return result;
+    }
+
+    /** @hide
+     * get vector length
+     *
+     * @return
+     */
+    public short length() {
+        return 4;
+    }
+
+    /** @hide
+     * set vector negate
+     */
+    public void negate() {
+        this.x = (short)(-x);
+        this.y = (short)(-y);
+        this.z = (short)(-z);
+        this.w = (short)(-w);
+    }
+
+    /** @hide
+     * Vector dot Product
+     *
+     * @param a
+     * @return
+     */
+    public short dotProduct(Short4 a) {
+        return (short)((x * a.x) + (y * a.y) + (z * a.z) + (w * a.w));
+    }
+
+    /** @hide
+     * Vector dot Product
+     *
+     * @param a
+     * @param b
+     * @return
+     */
+    public static short dotProduct(Short4 a, Short4 b) {
+        return (short)((b.x * a.x) + (b.y * a.y) + (b.z * a.z) + (b.w * a.w));
+    }
+
+    /** @hide
+     * Vector add Multiple
+     *
+     * @param a
+     * @param factor
+     */
+    public void addMultiple(Short4 a, short factor) {
+        x += a.x * factor;
+        y += a.y * factor;
+        z += a.z * factor;
+        w += a.w * factor;
+    }
+
+    /** @hide
+     * set vector value by Short4
+     *
+     * @param a
+     */
+    public void set(Short4 a) {
+        this.x = a.x;
+        this.y = a.y;
+        this.z = a.z;
+        this.w = a.w;
+    }
+
+    /** @hide
+     * set the vector field value by Short
+     *
+     * @param a
+     * @param b
+     * @param c
+     * @param d
+     */
+    public void setValues(short a, short b, short c, short d) {
+        this.x = a;
+        this.y = b;
+        this.z = c;
+        this.w = d;
+    }
+
+    /** @hide
+     * return the element sum of vector
+     *
+     * @return
+     */
+    public short elementSum() {
+        return (short)(x + y + z + w);
+    }
+
+    /** @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);
+        case 3:
+            return (short)(w);
+        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;
+        case 3:
+            w = 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;
+        case 3:
+            w += 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);
+        data[offset + 3] = (short)(w);
+    }
+}