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/**
* 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
*
*/
/**
* $Id$
*
* Parameter used within a preset
*
* $Log$
*/
#ifndef _PARAM_H
#define _PARAM_H
/* Debug level, zero for none */
#define PARAM_DEBUG 0
#define P_CREATE 1
#define P_NONE 0
#define P_TYPE_BOOL 0
#define P_TYPE_INT 1
#define P_TYPE_DOUBLE 2
#define P_TYPE_STRING 3
#define P_FLAG_NONE 0
#define P_FLAG_READONLY 1
#define P_FLAG_USERDEF (1 << 1)
#define P_FLAG_QVAR (1 << 2)
#define P_FLAG_TVAR (1 << 3)
#define P_FLAG_ALWAYS_MATRIX (1 << 4)
#define P_FLAG_PER_PIXEL (1 << 6)
#define P_FLAG_PER_POINT (1 << 7)
#include "Expr.hpp"
#include "Common.hpp"
#include <cmath>
#include <string>
class InitCond;
class Param;
class Preset;
//#include <map>
/* Parameter Type */
class Param {
public:
std::string name; /* name of the parameter, not necessary but useful neverthless */
short int type; /* parameter number type (int, bool, or float) */
short int flags; /* read, write, user defined, etc */
short int matrix_flag; /* for optimization purposes */
void * engine_val; /* pointer to the engine variable */
void * matrix; /* per pixel / per point matrix for this variable */
CValue default_init_val; /* a default initial condition value */
CValue upper_bound; /* this parameter's upper bound */
CValue lower_bound; /* this parameter's lower bound */
/// Create a new parameter
Param(std::string name, short int type, short int flags,
void * eqn_val, void *matrix,
CValue default_init_val, CValue upper_bound,
CValue lower_bound);
~Param();
/// Create a user defined floating point parameter
Param( std::string name );
static bool is_valid_param_string( const char *string );
void set_param( float val );
static Param *new_param_float( const char *name, short int flags, void *engine_val,
void *matrix, float upper_bound,
float lower_bound,
float init_val );
static Param *new_param_double(const char *name, short int flags, void *engine_val,
void *matrix, double upper_bound,
double lower_bound,
double init_val );
static Param * new_param_int(const char * name, short int flags, void * engine_val,
int upper_bound, int lower_bound, int init_val );
static Param * new_param_bool(const char * name, short int flags, void * engine_val,
bool upper_bound, bool lower_bound, bool init_val );
static Param * new_param_string(const char * name, short int flags, void * engine_val);
};
/* Sets the parameter engine value to value val.
clipping occurs if necessary */
inline void Param::set_param( float val) {
switch (type) {
case P_TYPE_BOOL:
if (val < 0)
*((bool*)engine_val) = false;
else if (val > 0)
*((bool*)engine_val) = true;
else
*((bool*)engine_val) = false;
break;
case P_TYPE_INT:
/* Make sure value is an integer */
val = floor(val);
if (val < lower_bound.int_val)
*((int*)engine_val) = lower_bound.int_val;
else if (val > upper_bound.int_val)
*((int*)engine_val) = upper_bound.int_val;
else
*((int*)engine_val) = (int)val;
break;
case P_TYPE_DOUBLE:
/* Make sure value is an integer */
if (val < lower_bound.float_val)
*((float*)engine_val) = lower_bound.float_val;
else if (val > upper_bound.float_val)
*((float*)engine_val) = upper_bound.float_val;
else
*((float*)engine_val) = val;
break;
default:
abort();
break;
}
return;
}
#endif /** !_PARAM_TYPES_H */
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