| 5 |
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| 6 |
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#ifndef _RAD_RTMATH_H_ |
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#define _RAD_RTMATH_H_ |
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#ifdef __cplusplus |
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extern "C" { |
| 10 |
– |
#endif |
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| 9 |
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#include <math.h> |
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| 11 |
< |
#include "tifftypes.h" |
| 15 |
< |
|
| 11 |
> |
#include "tiff.h" /* needed for int32, etc. */ |
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#include "mat4.h" |
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+ |
#ifdef __cplusplus |
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+ |
extern "C" { |
| 16 |
+ |
#endif |
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/* regular transformation */ |
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typedef struct { |
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MAT4 xfm; /* transform matrix */ |
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#define PI 3.14159265358979323846 |
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#endif |
| 34 |
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#endif |
| 35 |
+ |
/* defined in tcos.c */ |
| 36 |
+ |
extern double tcos(double x); |
| 37 |
+ |
extern double atan2a(double y, double x); |
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| 39 |
< |
#ifdef FASTMATH |
| 39 |
> |
#ifdef __FAST_MATH__ |
| 40 |
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#define tcos cos |
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#define tsin sin |
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#define ttan tan |
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#define tsin(x) tcos((x)-(PI/2.)) |
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#define ttan(x) (tsin(x)/tcos(x)) |
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#endif |
| 48 |
< |
/* defined in tcos.c */ |
| 47 |
< |
extern double tcos(double x); |
| 48 |
> |
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| 49 |
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/* defined in xf.c */ |
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extern int xf(XF *ret, int ac, char *av[]); |
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extern int invxf(XF *ret, int ac, char *av[]); |
