#include <stdint.h>

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Macros
#define	FIXEDPT_BITS 32

#define	FIXEDPT_WBITS 16

#define	FIXEDPT_VCSID "$Id$"

#define	FIXEDPT_FBITS (FIXEDPT_BITS - FIXEDPT_WBITS)

#define	FIXEDPT_FMASK (((fixedpt)1 << FIXEDPT_FBITS) - 1)

#define	fixedpt_rconst(R) ((fixedpt)((R) * FIXEDPT_ONE + ((R) >= 0 ? 0.5 : -0.5)))

#define	fixedpt_fromint(I) ((fixedptd)(I) << FIXEDPT_FBITS)

#define	fixedpt_toint(F) ((F) >> FIXEDPT_FBITS)

#define	fixedpt_add(A, B) ((A) + (B))

#define	fixedpt_sub(A, B) ((A) - (B))

#define	fixedpt_xmul(A, B) ((fixedpt)(((fixedptd)(A) * (fixedptd)(B)) >> FIXEDPT_FBITS))

#define	fixedpt_xdiv(A, B) ((fixedpt)(((fixedptd)(A) << FIXEDPT_FBITS) / (fixedptd)(B)))

#define	fixedpt_fracpart(A) ((fixedpt)(A) & FIXEDPT_FMASK)

#define	FIXEDPT_ONE ((fixedpt)((fixedpt)1 << FIXEDPT_FBITS))

#define	FIXEDPT_ONE_HALF (FIXEDPT_ONE >> 1)

#define	FIXEDPT_TWO (FIXEDPT_ONE + FIXEDPT_ONE)

#define	FIXEDPT_PI fixedpt_rconst(3.14159265358979323846)

#define	FIXEDPT_TWO_PI fixedpt_rconst(2 * 3.14159265358979323846)

#define	FIXEDPT_HALF_PI fixedpt_rconst(3.14159265358979323846 / 2)

#define	FIXEDPT_E fixedpt_rconst(2.7182818284590452354)

#define	fixedpt_abs(A) ((A) < 0 ? -(A) : (A))

Typedefs
typedef int32_t	fixedpt

typedef int64_t	fixedptd

typedef uint32_t	fixedptu

typedef uint64_t	fixedptud

Functions
fixedpt	fixedpt_mul (fixedpt A, fixedpt B)

fixedpt	fixedpt_div (fixedpt A, fixedpt B)

void	fixedpt_str (fixedpt A, char *str, int max_dec)
	Convert the given fixedpt number to a decimal string. More...

char *	fixedpt_cstr (const fixedpt A, const int max_dec)

fixedpt	fixedpt_sqrt (fixedpt A)

fixedpt	fixedpt_sin (fixedpt fp)

fixedpt	fixedpt_cos (fixedpt A)

fixedpt	fixedpt_tan (fixedpt A)

fixedpt	fixedpt_exp (fixedpt fp)

fixedpt	fixedpt_ln (fixedpt x)

fixedpt	fixedpt_log (fixedpt x, fixedpt base)

fixedpt	fixedpt_pow (fixedpt n, fixedpt exp)

void	fixedpt_print (fixedpt A)

void	fixedpt_print_file (fixedpt A)

Macro Definition Documentation

◆ fixedpt_abs

#define fixedpt_abs ( A ) ((A) < 0 ? -(A) : (A))

Definition at line 126 of file fixedptc.h.

◆ fixedpt_add

#define fixedpt_add	(	A,
		B
	)	((A) + (B))

Definition at line 110 of file fixedptc.h.

◆ FIXEDPT_BITS

#define FIXEDPT_BITS 32

Definition at line 75 of file fixedptc.h.

◆ FIXEDPT_E

#define FIXEDPT_E fixedpt_rconst(2.7182818284590452354)

Definition at line 124 of file fixedptc.h.

◆ FIXEDPT_FBITS

#define FIXEDPT_FBITS (FIXEDPT_BITS - FIXEDPT_WBITS)

Definition at line 104 of file fixedptc.h.

◆ FIXEDPT_FMASK

#define FIXEDPT_FMASK (((fixedpt)1 << FIXEDPT_FBITS) - 1)

Definition at line 105 of file fixedptc.h.

◆ fixedpt_fracpart

#define fixedpt_fracpart ( A ) ((fixedpt)(A) & FIXEDPT_FMASK)

Definition at line 116 of file fixedptc.h.

◆ fixedpt_fromint

#define fixedpt_fromint ( I ) ((fixedptd)(I) << FIXEDPT_FBITS)

Definition at line 108 of file fixedptc.h.

◆ FIXEDPT_HALF_PI

#define FIXEDPT_HALF_PI fixedpt_rconst(3.14159265358979323846 / 2)

Definition at line 123 of file fixedptc.h.

◆ FIXEDPT_ONE

#define FIXEDPT_ONE ((fixedpt)((fixedpt)1 << FIXEDPT_FBITS))

Definition at line 118 of file fixedptc.h.

◆ FIXEDPT_ONE_HALF

#define FIXEDPT_ONE_HALF (FIXEDPT_ONE >> 1)

Definition at line 119 of file fixedptc.h.

◆ FIXEDPT_PI

#define FIXEDPT_PI fixedpt_rconst(3.14159265358979323846)

Definition at line 121 of file fixedptc.h.

◆ fixedpt_rconst

#define fixedpt_rconst ( R ) ((fixedpt)((R) * FIXEDPT_ONE + ((R) >= 0 ? 0.5 : -0.5)))

Definition at line 107 of file fixedptc.h.

◆ fixedpt_sub

#define fixedpt_sub	(	A,
		B
	)	((A) - (B))

Definition at line 111 of file fixedptc.h.

◆ fixedpt_toint

#define fixedpt_toint ( F ) ((F) >> FIXEDPT_FBITS)

Definition at line 109 of file fixedptc.h.

◆ FIXEDPT_TWO

#define FIXEDPT_TWO (FIXEDPT_ONE + FIXEDPT_ONE)

Definition at line 120 of file fixedptc.h.

◆ FIXEDPT_TWO_PI

#define FIXEDPT_TWO_PI fixedpt_rconst(2 * 3.14159265358979323846)

Definition at line 122 of file fixedptc.h.

◆ FIXEDPT_VCSID

#define FIXEDPT_VCSID "$Id$"

Definition at line 102 of file fixedptc.h.

◆ FIXEDPT_WBITS

#define FIXEDPT_WBITS 16

Definition at line 95 of file fixedptc.h.

◆ fixedpt_xdiv

#define fixedpt_xdiv	(	A,
		B
	)	((fixedpt)(((fixedptd)(A) << FIXEDPT_FBITS) / (fixedptd)(B)))

Definition at line 114 of file fixedptc.h.

◆ fixedpt_xmul

#define fixedpt_xmul	(	A,
		B
	)	((fixedpt)(((fixedptd)(A) * (fixedptd)(B)) >> FIXEDPT_FBITS))

Definition at line 112 of file fixedptc.h.

Typedef Documentation

◆ fixedpt

typedef int32_t fixedpt

Definition at line 79 of file fixedptc.h.

◆ fixedptd

typedef int64_t fixedptd

Definition at line 80 of file fixedptc.h.

◆ fixedptu

typedef uint32_t fixedptu

Definition at line 81 of file fixedptc.h.

◆ fixedptud

typedef uint64_t fixedptud

Definition at line 82 of file fixedptc.h.

Function Documentation

◆ fixedpt_cos()

fixedpt fixedpt_cos ( fixedpt A )

Definition at line 162 of file fixedptc.c.

References FIXEDPT_HALF_PI, and fixedpt_sin().

Referenced by fixedpt_tan(), and get_two_normal_fixed().

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◆ fixedpt_cstr()

char* fixedpt_cstr	(	const fixedpt	A,
		const int	max_dec
	)

Definition at line 88 of file fixedptc.c.

References __attribute__(), A, fixedpt_div(), FIXEDPT_FBITS, FIXEDPT_ONE, fixedpt_sqrt(), fixedpt_str(), and str.

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◆ fixedpt_div()

fixedpt fixedpt_div	(	fixedpt	A,
		fixedpt	B
	)

Definition at line 17 of file fixedptc.c.

References FIXEDPT_FBITS.

Referenced by asset_path_fixed_simplified(), fixedpt_cstr(), fixedpt_exp(), fixedpt_ln(), fixedpt_log(), fixedpt_sqrt(), fixedpt_tan(), and processPhoton().

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◆ fixedpt_exp()

fixedpt fixedpt_exp ( fixedpt fp )

Definition at line 174 of file fixedptc.c.

References fixedpt_abs, fixedpt_div(), FIXEDPT_FBITS, FIXEDPT_FMASK, fixedpt_mul(), FIXEDPT_ONE, FIXEDPT_ONE_HALF, fixedpt_rconst, FIXEDPT_TWO, k, and R.

Referenced by asset_path_fixed_simplified(), and fixedpt_pow().

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◆ fixedpt_ln()

fixedpt fixedpt_ln ( fixedpt x )

Definition at line 259 of file fixedptc.c.

References fixedpt_div(), FIXEDPT_FBITS, fixedpt_mul(), FIXEDPT_ONE, fixedpt_rconst, FIXEDPT_TWO, R, test_panda::table, and x.

Referenced by fixedpt_log(), fixedpt_pow(), get_two_normal_fixed(), and processPhoton().

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◆ fixedpt_log()

fixedpt fixedpt_log	(	fixedpt	x,
		fixedpt	base
	)

Definition at line 298 of file fixedptc.c.

References fixedpt_div(), and fixedpt_ln().

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◆ fixedpt_mul()

fixedpt fixedpt_mul	(	fixedpt	A,
		fixedpt	B
	)

Definition at line 11 of file fixedptc.c.

References B, and FIXEDPT_FBITS.

Referenced by asset_path_fixed_simplified(), fixedpt_exp(), fixedpt_ln(), fixedpt_pow(), fixedpt_sin(), get_two_normal_fixed(), and processPhoton().

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◆ fixedpt_pow()

fixedpt fixedpt_pow	(	fixedpt	n,
		fixedpt	exp
	)

Definition at line 304 of file fixedptc.c.

References fixedpt_exp(), fixedpt_ln(), fixedpt_mul(), and FIXEDPT_ONE.

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◆ fixedpt_print()

void fixedpt_print ( fixedpt A )

◆ fixedpt_print_file()

void fixedpt_print_file ( fixedpt A )

◆ fixedpt_sin()

fixedpt fixedpt_sin ( fixedpt fp )

Definition at line 130 of file fixedptc.c.

References FIXEDPT_HALF_PI, fixedpt_mul(), FIXEDPT_ONE, FIXEDPT_PI, fixedpt_rconst, result, and sign.

Referenced by fixedpt_cos(), fixedpt_tan(), and get_two_normal_fixed().

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◆ fixedpt_sqrt()

fixedpt fixedpt_sqrt ( fixedpt A )

Definition at line 96 of file fixedptc.c.

References A, fixedpt_div(), FIXEDPT_FBITS, and FIXEDPT_ONE.

Referenced by asset_path_fixed_simplified(), fixedpt_cstr(), get_two_normal_fixed(), and processPhoton().

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◆ fixedpt_str()

void fixedpt_str	(	fixedpt	A,
		char *	str,
		int	max_dec
	)

Convert the given fixedpt number to a decimal string.

The max_dec argument specifies how many decimal digits to the right of the decimal point to generate. If set to -1, the "default" number of decimal digits will be used (2 for 32-bit fixedpt width, 10 for 64-bit fixedpt width); If set to -2, "all" of the digits will be returned, meaning there will be invalid, bogus digits outside the specified precisions.

Definition at line 35 of file fixedptc.c.

References FIXEDPT_BITS, fixedpt_fracpart, fixedpt_toint, and FIXEDPT_WBITS.

Referenced by fixedpt_cstr().

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◆ fixedpt_tan()

fixedpt fixedpt_tan ( fixedpt A )

Definition at line 168 of file fixedptc.c.

References fixedpt_cos(), fixedpt_div(), and fixedpt_sin().

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Macros

Typedefs

Functions

Macro Definition Documentation

◆ fixedpt_abs

◆ fixedpt_add

◆ FIXEDPT_BITS

◆ FIXEDPT_E

◆ FIXEDPT_FBITS

◆ FIXEDPT_FMASK

◆ fixedpt_fracpart

◆ fixedpt_fromint

◆ FIXEDPT_HALF_PI

◆ FIXEDPT_ONE

◆ FIXEDPT_ONE_HALF

◆ FIXEDPT_PI

◆ fixedpt_rconst

◆ fixedpt_sub

◆ fixedpt_toint

◆ FIXEDPT_TWO

◆ FIXEDPT_TWO_PI

◆ FIXEDPT_VCSID

◆ FIXEDPT_WBITS

◆ fixedpt_xdiv

◆ fixedpt_xmul

Typedef Documentation

◆ fixedpt

◆ fixedptd

◆ fixedptu

◆ fixedptud

Function Documentation

◆ fixedpt_cos()

◆ fixedpt_cstr()

◆ fixedpt_div()

◆ fixedpt_exp()

◆ fixedpt_ln()

◆ fixedpt_log()

◆ fixedpt_mul()

◆ fixedpt_pow()

◆ fixedpt_print()

◆ fixedpt_print_file()

◆ fixedpt_sin()

◆ fixedpt_sqrt()

◆ fixedpt_str()

◆ fixedpt_tan()