/*
* 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;
/**
* Vector version of the basic double type.
* Provides four double fields packed.
*/
public class Double4 {
public double x;
public double y;
public double z;
public double w;
public Double4() {
}
/** @hide */
public Double4(Double4 data) {
this.x = data.x;
this.y = data.y;
this.z = data.z;
this.w = data.w;
}
public Double4(double x, double y, double z, double w) {
this.x = x;
this.y = y;
this.z = z;
this.w = w;
}
/** @hide
* Vector add
*
* @param a
* @param b
* @return
*/
public static Double4 add(Double4 a, Double4 b) {
Double4 res = new Double4();
res.x = a.x + b.x;
res.y = a.y + b.y;
res.z = a.z + b.z;
res.w = a.w + b.w;
return res;
}
/** @hide
* Vector add
*
* @param value
*/
public void add(Double4 value) {
x += value.x;
y += value.y;
z += value.z;
w += value.w;
}
/** @hide
* Vector add
*
* @param value
*/
public void add(double value) {
x += value;
y += value;
z += value;
w += value;
}
/** @hide
* Vector add
*
* @param a
* @param b
* @return
*/
public static Double4 add(Double4 a, double b) {
Double4 res = new Double4();
res.x = a.x + b;
res.y = a.y + b;
res.z = a.z + b;
res.w = a.w + b;
return res;
}
/** @hide
* Vector subtraction
*
* @param value
*/
public void sub(Double4 value) {
x -= value.x;
y -= value.y;
z -= value.z;
w -= value.w;
}
/** @hide
* Vector subtraction
*
* @param value
*/
public void sub(double value) {
x -= value;
y -= value;
z -= value;
w -= value;
}
/** @hide
* Vector subtraction
*
* @param a
* @param b
* @return
*/
public static Double4 sub(Double4 a, double b) {
Double4 res = new Double4();
res.x = a.x - b;
res.y = a.y - b;
res.z = a.z - b;
res.w = a.w - b;
return res;
}
/** @hide
* Vector subtraction
*
* @param a
* @param b
* @return
*/
public static Double4 sub(Double4 a, Double4 b) {
Double4 res = new Double4();
res.x = a.x - b.x;
res.y = a.y - b.y;
res.z = a.z - b.z;
res.w = a.w - b.w;
return res;
}
/** @hide
* Vector multiplication
*
* @param value
*/
public void mul(Double4 value) {
x *= value.x;
y *= value.y;
z *= value.z;
w *= value.w;
}
/** @hide
* Vector multiplication
*
* @param value
*/
public void mul(double value) {
x *= value;
y *= value;
z *= value;
w *= value;
}
/** @hide
* Vector multiplication
*
* @param a
* @param b
* @return
*/
public static Double4 mul(Double4 a, Double4 b) {
Double4 res = new Double4();
res.x = a.x * b.x;
res.y = a.y * b.y;
res.z = a.z * b.z;
res.w = a.w * b.w;
return res;
}
/** @hide
* Vector multiplication
*
* @param a
* @param b
* @return
*/
public static Double4 mul(Double4 a, double b) {
Double4 res = new Double4();
res.x = a.x * b;
res.y = a.y * b;
res.z = a.z * b;
res.w = a.w * b;
return res;
}
/** @hide
* Vector division
*
* @param value
*/
public void div(Double4 value) {
x /= value.x;
y /= value.y;
z /= value.z;
w /= value.w;
}
/** @hide
* Vector division
*
* @param value
*/
public void div(double value) {
x /= value;
y /= value;
z /= value;
w /= value;
}
/** @hide
* Vector division
*
* @param a
* @param b
* @return
*/
public static Double4 div(Double4 a, double b) {
Double4 res = new Double4();
res.x = a.x / b;
res.y = a.y / b;
res.z = a.z / b;
res.w = a.w / b;
return res;
}
/** @hide
* Vector division
*
* @param a
* @param b
* @return
*/
public static Double4 div(Double4 a, Double4 b) {
Double4 res = new Double4();
res.x = a.x / b.x;
res.y = a.y / b.y;
res.z = a.z / b.z;
res.w = a.w / b.w;
return res;
}
/** @hide
* Vector dot Product
*
* @param a
* @return
*/
public double dotProduct(Double4 a) {
return (x * a.x) + (y * a.y) + (z * a.z) + (w * a.w);
}
/** @hide
* Vector dot Product
*
* @param a
* @param b
* @return
*/
public static double dotProduct(Double4 a, Double4 b) {
return (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(Double4 a, double factor) {
x += a.x * factor;
y += a.y * factor;
z += a.z * factor;
w += a.w * factor;
}
/** @hide
* Set vector value by double4
*
* @param a
*/
public void set(Double4 a) {
this.x = a.x;
this.y = a.y;
this.z = a.z;
this.w = a.w;
}
/** @hide
* Set vector negate
*/
public void negate() {
x = -x;
y = -y;
z = -z;
w = -w;
}
/** @hide
* Get vector length
*
* @return
*/
public int length() {
return 4;
}
/** @hide
* Return the element sum of vector
*
* @return
*/
public double elementSum() {
return x + y + z + w;
}
/** @hide
* Get the vector field value by index
*
* @param i
* @return
*/
public double get(int i) {
switch (i) {
case 0:
return x;
case 1:
return y;
case 2:
return z;
case 3:
return w;
default:
throw new IndexOutOfBoundsException("Index: i");
}
}
/** @hide
* Set the vector field value by index
*
* @param i
* @param value
*/
public void setAt(int i, double 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, double 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
* Set the vector field value
*
* @param x
* @param y
* @param z
* @param w
*/
public void setValues(double x, double y, double z, double w) {
this.x = x;
this.y = y;
this.z = z;
this.w = w;
}
/** @hide
* Copy the vector to double array
*
* @param data
* @param offset
*/
public void copyTo(double[] data, int offset) {
data[offset] = x;
data[offset + 1] = y;
data[offset + 2] = z;
data[offset + 3] = w;
}
}
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