windows-nt/Source/XPSP1/NT/shell/osshell/control/t1instal/trig.h
2020-09-26 16:20:57 +08:00

45 lines
711 B
C

/***
**
** Module: Trig
**
** Description:
** This is a module of the T1 to TT font converter. The module
** contains a look-up table for computing atan2() faster, and
** with less precision than that of the c run-time library.
**
** Author: Michael Jansson
**
** Created: 5/26/93
**
***/
#ifndef _ARGS
# define IN const
# define OUT
# define INOUT
# define _ARGS(arg) arg
#endif
#ifndef FASTCALL
# ifdef MSDOS
# define FASTCALL __fastcall
# else
# define FASTCALL
# endif
#endif
#define PI 1024
#define PI2 512
#define PI4 256
/***
** Function: Atan2
**
** Description:
** Compute atan2()
***/
int FASTCALL Atan2 _ARGS((IN int dy, IN int dx));