/**
 * projectM -- Milkdrop-esque visualisation SDK
 * Copyright (C)2003-2007 projectM Team
 *
 * This library 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 library 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 library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * See 'LICENSE.txt' included within this release
 *
 */
/**
 * $Id$
 *
 * Encapsulation of a custom wave
 *
 * $Log$
 */

#ifndef _CUSTOM_WAVE_H
#define _CUSTOM_WAVE_H


#define CUSTOM_WAVE_DEBUG 0

class CustomWave;
class GenExpr;
class PerPointEqn;
class Preset;

#include <vector>

#include "Common.hpp"
#include "Param.hpp"
#include "PerFrameEqn.hpp"
#include "Renderer/Waveform.hpp"

#include <map>


class CustomWave : public Waveform
{
  public:

  /** Empty constructor leaves wave in undefined state **/
  //CustomWave() {}

  /** Initializes a custom wave id given the integer id */
  CustomWave(int id);

  /** Destructor is necessary so we can free the per point matrices **/
  ~CustomWave();

  ColoredPoint PerPoint(ColoredPoint p, const WaveformContext context);

  /* Numerical id */
  int id;
  int per_frame_count;

  /* Parameter tree associated with this custom wave */
  std::map<std::string,Param*> param_tree;

  /* Engine variables */
  float x; /* x position for per point equations */
  float y; /* y position for per point equations */
  float r; /* red color value */
  float g; /* green color value */
  float b; /* blue color value */
  float a; /* alpha color value */
  float * x_mesh;
  float * y_mesh;
  float * r_mesh;
  float * b_mesh;
  float * g_mesh;
  float * a_mesh;
  float * value1;
  float * value2;
  float * sample_mesh;

  bool  enabled; /* if true then wave is visible, hidden otherwise */

  float sample;

  /* stupid t variables */
  float t1;
  float t2;
  float t3;
  float t4;
  float t5;
  float t6;
  float t7;
  float t8;


  /* stupider q variables */
  float q[NUM_Q_VARIABLES];

  float v1,v2;

  /* Data structures to hold per frame and per point equations */
  std::map<std::string,InitCond*> init_cond_tree;
  std::vector<PerFrameEqn*>       per_frame_eqn_tree;
  std::vector<PerPointEqn*>       per_point_eqn_tree;
  std::map<std::string,InitCond*> per_frame_init_eqn_tree;

  /* Denotes the index of the last character for each string buffer */
  int per_point_eqn_string_index;
  int per_frame_eqn_string_index;
  int per_frame_init_eqn_string_index;

  int add_per_point_eqn(char * name, GenExpr * gen_expr);
  void evalCustomWaveInitConditions(Preset *preset);


  void loadUnspecInitConds();

  void evalInitConds();
};

#endif /** !_CUSTOM_WAVE_H */