content: /*
   * 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 int type.
   * Provides four int fields packed.
   */
  public class Int4 {
      public int x;
      public int y;
      public int z;
      public int w;
  
      public Int4() {
      }
  
      /** @hide */
      public Int4(int i) {
          this.x = this.y = this.z = this.w = i;
      }
  
      public Int4(int x, int y, int z, int w) {
          this.x = x;
          this.y = y;
          this.z = z;
          this.w = w;
      }
  
      /** @hide */
      public Int4(Int4 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(Int4 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 Int4 add(Int4 a, Int4 b) {
          Int4 result = new Int4();
          result.x = a.x + b.x;
          result.y = a.y + b.y;
          result.z = a.z + b.z;
          result.w = a.w + b.w;
  
          return result;
      }
  
      /** @hide
       * Vector add
       *
       * @param value
       */
      public void add(int value) {
          x += value;
          y += value;
          z += value;
          w += value;
      }
  
      /** @hide
       * Vector add
       *
       * @param a
       * @param b
       * @return
       */
      public static Int4 add(Int4 a, int b) {
          Int4 result = new Int4();
          result.x = a.x + b;
          result.y = a.y + b;
          result.z = a.z + b;
          result.w = a.w + b;
  
          return result;
      }
  
      /** @hide
       * Vector subtraction
       *
       * @param a
       */
      public void sub(Int4 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 Int4 sub(Int4 a, Int4 b) {
          Int4 result = new Int4();
          result.x = a.x - b.x;
          result.y = a.y - b.y;
          result.z = a.z - b.z;
          result.w = a.w - b.w;
  
          return result;
      }
  
      /** @hide
       * Vector subtraction
       *
       * @param value
       */
      public void sub(int value) {
          x -= value;
          y -= value;
          z -= value;
          w -= value;
      }
  
      /** @hide
       * Vector subtraction
       *
       * @param a
       * @param b
       * @return
       */
      public static Int4 sub(Int4 a, int b) {
          Int4 result = new Int4();
          result.x = a.x - b;
          result.y = a.y - b;
          result.z = a.z - b;
          result.w = a.w - b;
  
          return result;
      }
  
      /** @hide
       * Vector multiplication
       *
       * @param a
       */
      public void mul(Int4 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 Int4 mul(Int4 a, Int4 b) {
          Int4 result = new Int4();
          result.x = a.x * b.x;
          result.y = a.y * b.y;
          result.z = a.z * b.z;
          result.w = a.w * b.w;
  
          return result;
      }
  
      /** @hide
       * Vector multiplication
       *
       * @param value
       */
      public void mul(int value) {
          x *= value;
          y *= value;
          z *= value;
          w *= value;
      }
  
      /** @hide
       * Vector multiplication
       *
       * @param a
       * @param b
       * @return
       */
      public static Int4 mul(Int4 a, int b) {
          Int4 result = new Int4();
          result.x = a.x * b;
          result.y = a.y * b;
          result.z = a.z * b;
          result.w = a.w * b;
  
          return result;
      }
  
      /** @hide
       * Vector division
       *
       * @param a
       */
      public void div(Int4 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 Int4 div(Int4 a, Int4 b) {
          Int4 result = new Int4();
          result.x = a.x / b.x;
          result.y = a.y / b.y;
          result.z = a.z / b.z;
          result.w = a.w / b.w;
  
          return result;
      }
  
      /** @hide
       * Vector division
       *
       * @param value
       */
      public void div(int value) {
          x /= value;
          y /= value;
          z /= value;
          w /= value;
      }
  
      /** @hide
       * Vector division
       *
       * @param a
       * @param b
       * @return
       */
      public static Int4 div(Int4 a, int b) {
          Int4 result = new Int4();
          result.x = a.x / b;
          result.y = a.y / b;
          result.z = a.z / b;
          result.w = a.w / b;
  
          return result;
      }
  
      /** @hide
       * Vector Modulo
       *
       * @param a
       */
      public void mod(Int4 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 Int4 mod(Int4 a, Int4 b) {
          Int4 result = new Int4();
          result.x = a.x % b.x;
          result.y = a.y % b.y;
          result.z = a.z % b.z;
          result.w = a.w % b.w;
  
          return result;
      }
  
      /** @hide
       * Vector Modulo
       *
       * @param value
       */
      public void mod(int value) {
          x %= value;
          y %= value;
          z %= value;
          w %= value;
      }
  
      /** @hide
       * Vector Modulo
       *
       * @param a
       * @param b
       * @return
       */
      public static Int4 mod(Int4 a, int b) {
          Int4 result = new Int4();
          result.x = a.x % b;
          result.y = a.y % b;
          result.z = a.z % b;
          result.w = a.w % b;
  
          return result;
      }
  
      /** @hide
       * get vector length
       *
       * @return
       */
      public int length() {
          return 4;
      }
  
      /** @hide
       * set vector negate
       */
      public void negate() {
          this.x = -x;
          this.y = -y;
          this.z = -z;
          this.w = -w;
      }
  
      /** @hide
       * Vector dot Product
       *
       * @param a
       * @return
       */
      public int dotProduct(Int4 a) {
          return (int)((x * a.x) + (y * a.y) + (z * a.z) + (w * a.w));
      }
  
      /** @hide
       * Vector dot Product
       *
       * @param a
       * @param b
       * @return
       */
      public static int dotProduct(Int4 a, Int4 b) {
          return (int)((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(Int4 a, int factor) {
          x += a.x * factor;
          y += a.y * factor;
          z += a.z * factor;
          w += a.w * factor;
      }
  
      /** @hide
       * set vector value by Int4
       *
       * @param a
       */
      public void set(Int4 a) {
          this.x = a.x;
          this.y = a.y;
          this.z = a.z;
          this.w = a.w;
      }
  
      /** @hide
       * set the vector field value by Int
       *
       * @param a
       * @param b
       * @param c
       * @param d
       */
      public void setValues(int a, int b, int c, int d) {
          this.x = a;
          this.y = b;
          this.z = c;
          this.w = d;
      }
  
      /** @hide
       * return the element sum of vector
       *
       * @return
       */
      public int elementSum() {
          return (int)(x + y + z + w);
      }
  
      /** @hide
       * get the vector field value by index
       *
       * @param i
       * @return
       */
      public int get(int i) {
          switch (i) {
          case 0:
              return (int)(x);
          case 1:
              return (int)(y);
          case 2:
              return (int)(z);
          case 3:
              return (int)(w);
          default:
              throw new IndexOutOfBoundsException("Index: i");
          }
      }
  
      /** @hide
       * set the vector field value by index
       *
       * @param i
       * @param value
       */
      public void setAt(int i, int 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, int 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 int array
       *
       * @param data
       * @param offset
       */
      public void copyTo(int[] data, int offset) {
          data[offset] = (int)(x);
          data[offset + 1] = (int)(y);
          data[offset + 2] = (int)(z);
          data[offset + 3] = (int)(w);
      }
  }
  