152 lines
4.6 KiB
C++
152 lines
4.6 KiB
C++
/**
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* projectM -- Milkdrop-esque visualisation SDK
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* Copyright (C)2003-2007 projectM Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* See 'LICENSE.txt' included within this release
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*
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*/
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/**
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* $Id$
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*
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* Parameter used within a preset
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*
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* $Log$
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*/
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#ifndef _PARAM_H
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#define _PARAM_H
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/* Debug level, zero for none */
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#define PARAM_DEBUG 0
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#define P_CREATE 1
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#define P_NONE 0
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#define P_TYPE_BOOL 0
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#define P_TYPE_INT 1
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#define P_TYPE_DOUBLE 2
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#define P_TYPE_STRING 3
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#define P_FLAG_NONE 0
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#define P_FLAG_READONLY 1
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#define P_FLAG_USERDEF (1 << 1)
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#define P_FLAG_QVAR (1 << 2)
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#define P_FLAG_TVAR (1 << 3)
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#define P_FLAG_ALWAYS_MATRIX (1 << 4)
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#define P_FLAG_PER_PIXEL (1 << 6)
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#define P_FLAG_PER_POINT (1 << 7)
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#include "Expr.hpp"
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#include "Common.hpp"
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#include <cmath>
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#include <string>
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class InitCond;
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class Param;
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class Preset;
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//#include <map>
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/* Parameter Type */
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class Param {
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public:
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std::string name; /* name of the parameter, not necessary but useful neverthless */
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short int type; /* parameter number type (int, bool, or float) */
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short int flags; /* read, write, user defined, etc */
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short int matrix_flag; /* for optimization purposes */
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void * engine_val; /* pointer to the engine variable */
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void * matrix; /* per pixel / per point matrix for this variable */
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CValue default_init_val; /* a default initial condition value */
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CValue upper_bound; /* this parameter's upper bound */
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CValue lower_bound; /* this parameter's lower bound */
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/// Create a new parameter
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Param(std::string name, short int type, short int flags,
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void * eqn_val, void *matrix,
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CValue default_init_val, CValue upper_bound,
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CValue lower_bound);
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~Param();
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/// Create a user defined floating point parameter
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Param( std::string name );
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static bool is_valid_param_string( const char *string );
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void set_param( float val );
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static Param *new_param_float( const char *name, short int flags, void *engine_val,
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void *matrix, float upper_bound,
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float lower_bound,
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float init_val );
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static Param *new_param_double(const char *name, short int flags, void *engine_val,
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void *matrix, double upper_bound,
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double lower_bound,
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double init_val );
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static Param * new_param_int(const char * name, short int flags, void * engine_val,
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int upper_bound, int lower_bound, int init_val );
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static Param * new_param_bool(const char * name, short int flags, void * engine_val,
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bool upper_bound, bool lower_bound, bool init_val );
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static Param * new_param_string(const char * name, short int flags, void * engine_val);
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};
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/* Sets the parameter engine value to value val.
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clipping occurs if necessary */
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inline void Param::set_param( float val) {
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switch (type) {
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case P_TYPE_BOOL:
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if (val < 0)
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*((bool*)engine_val) = false;
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else if (val > 0)
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*((bool*)engine_val) = true;
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else
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*((bool*)engine_val) = false;
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break;
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case P_TYPE_INT:
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/* Make sure value is an integer */
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val = floor(val);
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if (val < lower_bound.int_val)
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*((int*)engine_val) = lower_bound.int_val;
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else if (val > upper_bound.int_val)
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*((int*)engine_val) = upper_bound.int_val;
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else
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*((int*)engine_val) = (int)val;
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break;
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case P_TYPE_DOUBLE:
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/* Make sure value is an integer */
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if (val < lower_bound.float_val)
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*((float*)engine_val) = lower_bound.float_val;
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else if (val > upper_bound.float_val)
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*((float*)engine_val) = upper_bound.float_val;
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else
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*((float*)engine_val) = val;
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break;
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default:
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//abort();
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break;
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}
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return;
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}
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#endif /** !_PARAM_TYPES_H */
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