gzdoom-gles/libraries/opnmidi/chips/np2/fmgen_misc.h
Wohlstand 87d46ddd11 Update libOPNMIDI library to 1.5.0
## 1.5.0   2020-09-28
 * Drum note length expanding is now supported in real-time mode (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
 * Added support for OPNA chip with Neko Project II Kai YM2602 emulator usage (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
 * Added VGM file dumper which allows to output OPN2 commands into VGM file. (A new MIDI to VGM tool is now created with basing on libOPNMIDI)
 * Fixed an incorrect work of CC-121 (See https://github.com/Wohlstand/libADLMIDI/issues/227 for details)
 * Internality has been refactored and improved
2020-10-04 12:50:10 +02:00

69 lines
1.1 KiB
C++

// ---------------------------------------------------------------------------
// misc.h
// Copyright (C) cisc 1998, 1999.
// ---------------------------------------------------------------------------
// $Id: misc.h,v 1.5 2002/05/31 09:45:20 cisc Exp $
#ifndef MISC_H
#define MISC_H
inline int Max(int x, int y) { return (x > y) ? x : y; }
inline int Min(int x, int y) { return (x < y) ? x : y; }
inline int Abs(int x) { return x >= 0 ? x : -x; }
inline int Limit(int v, int max, int min)
{
return v > max ? max : (v < min ? min : v);
}
inline unsigned int BSwap(unsigned int a)
{
return (a >> 24) | ((a >> 8) & 0xff00) | ((a << 8) & 0xff0000) | (a << 24);
}
inline unsigned int NtoBCD(unsigned int a)
{
return ((a / 10) << 4) + (a % 10);
}
inline unsigned int BCDtoN(unsigned int v)
{
return (v >> 4) * 10 + (v & 15);
}
template<class T>
inline T gcd(T x, T y)
{
T t;
while (y)
{
t = x % y;
x = y;
y = t;
}
return x;
}
template<class T>
T bessel0(T x)
{
T p, r, s;
r = 1.0;
s = 1.0;
p = (x / 2.0) / s;
while (p > 1.0E-10)
{
r += p * p;
s += 1.0;
p *= (x / 2.0) / s;
}
return r;
}
#endif // MISC_H