|  | /* | 
|  | * 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. | 
|  | * 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.renderscript; | 
|  |  | 
|  |  | 
|  | /** | 
|  | * Class for exposing the native RenderScript Short2 type back to the Android system. | 
|  | * | 
|  | * Vector version of the basic short type. | 
|  | * Provides two short fields packed. | 
|  | */ | 
|  | public class Short2 { | 
|  | public short x; | 
|  | public short y; | 
|  |  | 
|  | public Short2() { | 
|  | } | 
|  |  | 
|  | /** @hide */ | 
|  | public Short2(short i) { | 
|  | this.x = this.y = i; | 
|  | } | 
|  |  | 
|  | public Short2(short x, short y) { | 
|  | this.x = x; | 
|  | this.y = y; | 
|  | } | 
|  |  | 
|  | /** @hide */ | 
|  | public Short2(Short2 source) { | 
|  | this.x = source.x; | 
|  | this.y = source.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector add | 
|  | * | 
|  | * @param a | 
|  | */ | 
|  | public void add(Short2 a) { | 
|  | this.x += a.x; | 
|  | this.y += a.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector add | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 add(Short2 a, Short2 b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x + b.x); | 
|  | result.y = (short)(a.y + b.y); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector add | 
|  | * | 
|  | * @param value | 
|  | */ | 
|  | public void add(short value) { | 
|  | x += value; | 
|  | y += value; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector add | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 add(Short2 a, short b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x + b); | 
|  | result.y = (short)(a.y + b); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector subtraction | 
|  | * | 
|  | * @param a | 
|  | */ | 
|  | public void sub(Short2 a) { | 
|  | this.x -= a.x; | 
|  | this.y -= a.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector subtraction | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 sub(Short2 a, Short2 b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x - b.x); | 
|  | result.y = (short)(a.y - b.y); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector subtraction | 
|  | * | 
|  | * @param value | 
|  | */ | 
|  | public void sub(short value) { | 
|  | x -= value; | 
|  | y -= value; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector subtraction | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 sub(Short2 a, short b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x - b); | 
|  | result.y = (short)(a.y - b); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector multiplication | 
|  | * | 
|  | * @param a | 
|  | */ | 
|  | public void mul(Short2 a) { | 
|  | this.x *= a.x; | 
|  | this.y *= a.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector multiplication | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 mul(Short2 a, Short2 b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x * b.x); | 
|  | result.y = (short)(a.y * b.y); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector multiplication | 
|  | * | 
|  | * @param value | 
|  | */ | 
|  | public void mul(short value) { | 
|  | x *= value; | 
|  | y *= value; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector multiplication | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 mul(Short2 a, short b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x * b); | 
|  | result.y = (short)(a.y * b); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector division | 
|  | * | 
|  | * @param a | 
|  | */ | 
|  | public void div(Short2 a) { | 
|  | this.x /= a.x; | 
|  | this.y /= a.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector division | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 div(Short2 a, Short2 b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x / b.x); | 
|  | result.y = (short)(a.y / b.y); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector division | 
|  | * | 
|  | * @param value | 
|  | */ | 
|  | public void div(short value) { | 
|  | x /= value; | 
|  | y /= value; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector division | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 div(Short2 a, short b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x / b); | 
|  | result.y = (short)(a.y / b); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector Modulo | 
|  | * | 
|  | * @param a | 
|  | */ | 
|  | public void mod(Short2 a) { | 
|  | this.x %= a.x; | 
|  | this.y %= a.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector Modulo | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 mod(Short2 a, Short2 b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x % b.x); | 
|  | result.y = (short)(a.y % b.y); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector Modulo | 
|  | * | 
|  | * @param value | 
|  | */ | 
|  | public void mod(short value) { | 
|  | x %= value; | 
|  | y %= value; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector Modulo | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static Short2 mod(Short2 a, short b) { | 
|  | Short2 result = new Short2(); | 
|  | result.x = (short)(a.x % b); | 
|  | result.y = (short)(a.y % b); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * get vector length | 
|  | * | 
|  | * @return | 
|  | */ | 
|  | public short length() { | 
|  | return 2; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * set vector negate | 
|  | */ | 
|  | public void negate() { | 
|  | this.x = (short)(-x); | 
|  | this.y = (short)(-y); | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector dot Product | 
|  | * | 
|  | * @param a | 
|  | * @return | 
|  | */ | 
|  | public short dotProduct(Short2 a) { | 
|  | return (short)((x * a.x) + (y * a.y)); | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector dot Product | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | * @return | 
|  | */ | 
|  | public static short dotProduct(Short2 a, Short2 b) { | 
|  | return (short)((b.x * a.x) + (b.y * a.y)); | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * Vector add Multiple | 
|  | * | 
|  | * @param a | 
|  | * @param factor | 
|  | */ | 
|  | public void addMultiple(Short2 a, short factor) { | 
|  | x += a.x * factor; | 
|  | y += a.y * factor; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * set vector value by Short2 | 
|  | * | 
|  | * @param a | 
|  | */ | 
|  | public void set(Short2 a) { | 
|  | this.x = a.x; | 
|  | this.y = a.y; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * set the vector field value by Short | 
|  | * | 
|  | * @param a | 
|  | * @param b | 
|  | */ | 
|  | public void setValues(short a, short b) { | 
|  | this.x = a; | 
|  | this.y = b; | 
|  | } | 
|  |  | 
|  | /** @hide | 
|  | * return the element sum of vector | 
|  | * | 
|  | * @return | 
|  | */ | 
|  | public short elementSum() { | 
|  | return (short)(x + y); | 
|  | } | 
|  |  | 
|  | /** @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); | 
|  | 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; | 
|  | 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; | 
|  | 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); | 
|  | } | 
|  | } |