/*----------------------------------------------------------------------------
  ChucK Strongly-timed Audio Programming Language
    Compiler, Virtual Machine, and Synthesis Engine

  Copyright (c) 2003 Ge Wang and Perry R. Cook. All rights reserved.
    http://chuck.stanford.edu/
    http://chuck.cs.princeton.edu/

  This program is free software; you can redistribute it and/or modify
  it under the dual-license terms of EITHER the MIT License OR the GNU
  General Public License (the latter 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 and/or
  interesting, but WITHOUT ANY WARRANTY; without even the implied warranty
  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  MIT Licence and/or the GNU General Public License for details.

  You should have received a copy of the MIT License and the GNU General
  Public License (GPL) along with this program; a copy of the GPL can also
  be obtained by writing to the Free Software Foundation, Inc., 59 Temple
  Place, Suite 330, Boston, MA 02111-1307 U.S.A.
-----------------------------------------------------------------------------*/

//-----------------------------------------------------------------------------
// name: util_math.h
// desc: a mini-compatibility library for math functions
//
// author: Ge Wang (ge@ccrma.stanford.edu | gewang@cs.princeton.edu)
//         Philip Davidson (philipd@alumni.princeton.edu)
// date: Spring 2004
//-----------------------------------------------------------------------------
#ifndef __UTIL_MATH_H__
#define __UTIL_MATH_H__

#include <math.h>
#include "chuck_def.h" // 1.4.1.0 (ge) for t_CKINT

#if defined (__cplusplus) || defined(_cplusplus)
extern "C" {
#endif

// 1.4.1.1 (ge) removed -- seems no longer needed on more modern windows
#ifdef __PLATFORM_WINDOWS__
#ifdef __CK_MATH_DEFINE_ROUND_TRUNC__
    double round( double a );
    double trunc( double a );
#endif
#endif

// 1.4.1.0 (ge) need this since remainder still not found (VC++ 2010)
double ck_remainder( double a, double b );


// chuck random wrapper, return t_CKINT in [0,CK_RANDOM_MAX]
t_CKINT ck_random();
// chuck random float wrapper, return t_CKFLOAT in [0,1]
t_CKFLOAT ck_random_f();
// chuck srandom wrapper
void ck_srandom( unsigned seed );
// randomizer wrapper (use this instead of seeding for initial)
void ck_randomize();


//-----------------------------------------------------------------------------
#ifndef __OLDSCHOOL_RANDOM__
//-----------------------------------------------------------------------------
#define CK_RANDOM_MAX 0x7fffffff
//-----------------------------------------------------------------------------
#else // __OLDSCHOOL_RANDOM__ (enable only for compatibility pre-c++11)
//-----------------------------------------------------------------------------
  #ifndef __PLATFORM_WINDOWS__
    #define CK_RANDOM_MAX 0x7fffffff
  #else // __PLATFORM_WINDOWS__
    #define CK_RANDOM_MAX RAND_MAX
  #endif
//-----------------------------------------------------------------------------
#endif // __OLDSCHOOL_RANDOM__
//-----------------------------------------------------------------------------


// mtof
double ck_mtof( double f );
// ftom
double ck_ftom( double f );
// powtodb
double ck_powtodb( double f );
// rmstodb
double ck_rmstodb( double f );
// dbtopow
double ck_dbtopow( double f );
// dbtorms
double ck_dbtorms( double f );
// nextpow2
unsigned long ck_nextpow2( unsigned long i );
// ensurepow2
unsigned long ck_ensurepow2( unsigned long i );

// floating point equals
t_CKBOOL ck_equals( t_CKFLOAT lhs, t_CKFLOAT rhs );
t_CKBOOL ck_equals_ex( t_CKFLOAT lhs, t_CKFLOAT rhs, t_CKFLOAT epsilon );
// magnitude of complex number
t_CKFLOAT ck_complex_magnitude( const t_CKCOMPLEX & cmp );
// phase of complex number
t_CKFLOAT ck_complex_phase( const t_CKCOMPLEX & cmp );
// magnitude of vec2
t_CKFLOAT ck_vec2_magnitude( const t_CKVEC2 & v );
// phase of vec2
t_CKFLOAT ck_vec2_phase( const t_CKVEC2 & v );
// magnitude of vec3
t_CKFLOAT ck_vec3_magnitude( const t_CKVEC3 & v );
// magnitude of vec4
t_CKFLOAT ck_vec4_magnitude( const t_CKVEC4 & v );



#if defined (__cplusplus) || defined(_cplusplus)
}
#endif




#endif
