Math

Defines
#define	oslSrand   vfpu_srand
#define	oslRandf   vfpu_randf
#define	oslRand_8888   vfpu_rand_8888
#define	oslSinf   vfpu_sinf
#define	oslCosf   vfpu_cosf
#define	oslTanf   vfpu_tanf
#define	oslAsinf   vfpu_asinf
#define	oslAcosf   vfpu_acosf
#define	oslAtanf   vfpu_atanf
#define	oslAtan2f   vfpu_atan2f
#define	oslSinhf   vfpu_sinhf
#define	oslCoshf   vfpu_coshf
#define	oslTanhf   vfpu_tanhf
#define	oslSincos   vfpu_sincos
#define	oslExpf   vfpu_expf
#define	oslLogf   vfpu_logf
#define	oslPowf   vfpu_powf
#define	oslFmodf   vfpu_fmodf

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Detailed Description

Math functions (using VFPU) Functions using the Vector Floating Point Unit (VFPU). All this functions are based on libpspmath version 4 by MrMr[iCE]

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Define Documentation

#define oslSrand   vfpu_srand

Set vfpu random generator seed

Parameters:

x

- seed value

#define oslRandf   vfpu_randf

Return random float value

Parameters:

	min	- minimum value to return
	max	- maximum value to return

#define oslRand_8888   vfpu_rand_8888

Return random color value in 8888 format This always sets the alpha channel value to 0xFF

Parameters:

	min	- minimum value for each color channel (0..255)
	max	- maximum value for each color channel (0..255)

#define oslSinf   vfpu_sinf

Calculate sine

Parameters:

x

- input in radians

#define oslCosf   vfpu_cosf

Calculate cosine

Parameters:

x

- input in radians

#define oslTanf   vfpu_tanf

Calculate tangent

Parameters:

x

- input in radians

#define oslAsinf   vfpu_asinf

Calculate inverse sine (arcsin)

Parameters:

x

- input

#define oslAcosf   vfpu_acosf

Calculate inverse cosine (arccos)

Parameters:

x

- input

#define oslAtanf   vfpu_atanf

Calculate inverse tangent (arctan)

Parameters:

x

- input

#define oslAtan2f   vfpu_atan2f

Calculate inverse tangent, with proper quadrant fixup

Parameters:

x

- input

#define oslSinhf   vfpu_sinhf

Calculate hyperbolic sine

Parameters:

x

- input

#define oslCoshf   vfpu_coshf

Calculate hyperbolic cosine

Parameters:

x

- input

#define oslTanhf   vfpu_tanhf

Calculate hyperbolic tangent

Parameters:

x

- input

#define oslSincos   vfpu_sincos

Calculate sine and cosine

Parameters:

	r	- input in radians
	s	- pointer to float for sin
	c	- pointer to float for cos

#define oslExpf   vfpu_expf

Calculate exponent of x

Parameters:

x

- input

#define oslLogf   vfpu_logf

Calculate logarithm of x

Parameters:

x

- input

#define oslPowf   vfpu_powf

Calculate x raised to the power of y

Parameters:

	x	- number to raise power of
	y	- power to raise x by

#define oslFmodf   vfpu_fmodf

Calculate floating point remainder of x/y

Parameters:

	x	- input
	y	- input