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/**
* projectM -- Milkdrop-esque visualisation SDK
* Copyright (C)2003-2004 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
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "fatal.h"
#include "Common.hpp"
#include "Param.hpp"
#include "PerFrameEqn.hpp"
#include "Eval.hpp"
#include "Expr.hpp"
#include "wipemalloc.h"
#include <cassert>
/* Evaluate an equation */
void PerFrameEqn::evaluate() {
if (PER_FRAME_EQN_DEBUG) {
printf("per_frame_%d=%s= ", index, param->name.c_str());
fflush(stdout);
}
//*((float*)per_frame_eqn->param->engine_val) = eval_gen_expr(per_frame_eqn->gen_expr);
assert(gen_expr);
assert(param);
param->set_param(gen_expr->eval_gen_expr(-1,-1));
if (PER_FRAME_EQN_DEBUG) printf(" = %.4f\n", *((float*)param->engine_val));
}
/* Frees perframe equation structure. Warning: assumes gen_expr pointer is not freed by anyone else! */
PerFrameEqn::~PerFrameEqn() {
delete gen_expr;
// param is freed in param_tree container of some other class
}
/* Create a new per frame equation */
PerFrameEqn::PerFrameEqn(int _index, Param * _param, GenExpr * _gen_expr) :
index(_index), param(_param), gen_expr(_gen_expr) {}
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