FastMathLibImpl.java

/*
  JWildfire - an image and animation processor written in Java 
  Copyright (C) 1995-2013 Andreas Maschke

  This is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser 
  General Public License as published by the Free Software Foundation; either version 2.1 of the 
  License, or (at your option) any later version.
 
  This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
  even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License along with this software; 
  if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jwildfire.base.mathlib;

import odk.lang.DoubleWrapper;
import odk.lang.FastMath;

public final class FastMathLibImpl implements BaseMathLib {

  @Override
  public double sin(double a) {
    return FastMath.sin(a);
  }

  @Override
  public double cos(double a) {
    return FastMath.cos(a);
  }

  @Override
  public void sinAndCos(double a, DoubleWrapper sine, DoubleWrapper cosine) {
    FastMath.sinAndCos(a, sine, cosine);
  }

  @Override
  public double tan(double a) {
    return FastMath.tan(a);
  }

  @Override
  public double atan2(double y, double x) {
    return FastMath.atan2(y, x);
  }

  @Override
  public double exp(double a) {
    return FastMath.exp(a);
  }

  @Override
  public double sqrt(double a) {
    return FastMath.sqrt(a);
  }

  @Override
  public double pow(double value, double power) {
    return FastMath.pow(value, power);
  }

  // fast approximation from Martin Ankerl's blog: http://martin.ankerl.com/2007/10/04/optimized-pow-approximation-for-java-and-c-c/
  // maybe for fast preview?
  public double fastpow(double value, double power) {
    final long tmp = Double.doubleToLongBits(value);
    final long tmp2 = (long) (power * (tmp - 4606921280493453312L)) + 4606921280493453312L;
    return Double.longBitsToDouble(tmp2);
  }

  @Override
  public double floor(double value) {
    return FastMath.floor(value);
  }

  @Override
  public double round(double value) {
    return FastMath.round(value);
  }

  @Override
  public double log10(double value) {
    return Math.log10(value);
  }

  @Override
  public double log(double value) {
    return Math.log(value);
  }

  @Override
  public double sinh(double value) {
    return FastMath.sinh(value);
  }

  @Override
  public double cosh(double value) {
    return FastMath.cosh(value);
  }

  @Override
  public double tanh(double value) {
    return FastMath.tanh(value);
  }

  @Override
  public double atan(double value) {
    return FastMath.atan(value);
  }

  @Override
  public double acos(double value) {
    return FastMath.acos(value);
  }

  @Override
  public double asin(double value) {
    return FastMath.asin(value);
  }

}