PseudoNoise.h

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
 
#pragma once
 
#include "Precision.h"
 
#ifdef WITH_CXX_GUARDEDALLOC
#  include "MEM_guardedalloc.h"
#endif
 
namespace Freestyle {
 
class PseudoNoise {
 public:
  virtual ~PseudoNoise()
  {
  }
 
  real smoothNoise(real x);
  real linearNoise(real x);
 
  real turbulenceSmooth(real x, unsigned nbOctave = 8);
  real turbulenceLinear(real x, unsigned nbOctave = 8);
 
  static void init(long seed);
 
 protected:
  static const unsigned NB_VALUE_NOISE = 512;
  static real _values[NB_VALUE_NOISE];
 
#ifdef WITH_CXX_GUARDEDALLOC
  MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:PseudoNoise")
#endif
};
 
} /* namespace Freestyle */