Floating point numbers data type management.

Functions
static Eina_F32p32	eina_f32p32_int_from (int32_t v)
	Creates a new Eina_F32p32 floating point number from standard 32-bit integer.
static int32_t	eina_f32p32_int_to (Eina_F32p32 v)
	Creates a new standard 32-bit integer from Eina_F32p32 floating point number.
static Eina_F32p32	eina_f32p32_double_from (double v)
	Creates a new Eina_F32p32 floating point number from standard double.
static double	eina_f32p32_double_to (Eina_F32p32 v)
	Creates a new standard double from Eina_F32p32 floating point number.
static Eina_F32p32	eina_f32p32_add (Eina_F32p32 a, Eina_F32p32 b)
	Calculates the sum of two Eina_F32p32 floating point numbers.
static Eina_F32p32	eina_f32p32_sub (Eina_F32p32 a, Eina_F32p32 b)
	Calculates the subtraction of two Eina_F32p32 floating point numbers.
static Eina_F32p32	eina_f32p32_mul (Eina_F32p32 a, Eina_F32p32 b)
	Calculates the multiplication of two Eina_F32p32 floating point numbers.
static Eina_F32p32	eina_f32p32_scale (Eina_F32p32 a, int b)
	Calculates the scale multiplication of one Eina_F32p32 floating point number with an integer.
static Eina_F32p32	eina_f32p32_div (Eina_F32p32 a, Eina_F32p32 b)
	Calculates the division of two Eina_F32p32 floating point numbers.
static Eina_F32p32	eina_f32p32_sqrt (Eina_F32p32 a)
	Calculates the square root of an Eina_F32p32 floating point number.
static unsigned int	eina_f32p32_fracc_get (Eina_F32p32 v)
	Gets the absolute value of the integer part of and Eina_F32p32 floating point number.
Eina_F32p32	eina_f32p32_cos (Eina_F32p32 a)
	Calculates the cosinus of a floating point number.
Eina_F32p32	eina_f32p32_sin (Eina_F32p32 a)
	Calculates the sinus of a floating point number.
static Eina_F16p16	eina_f16p16_int_from (int32_t v)
	Creates a new Eina_F16p316 floating point number from standard 32-bit integer.
static int32_t	eina_f16p16_int_to (Eina_F16p16 v)
	Creates a new standard 32-bit integer from Eina_F16p16 floating point number.
static Eina_F16p16	eina_f16p16_double_from (double v)
	Creates a new Eina_F16p16 floating point number from standard double.
static double	eina_f16p16_double_to (Eina_F16p16 v)
	Creates a new standard double from Eina_F16p16 floating point number.
static Eina_F16p16	eina_f16p16_float_from (float v)
	Creates a new Eina_F16p16 floating point number from standard float.
static float	eina_f16p16_float_to (Eina_F16p16 v)
	Creates a new standard float from Eina_F16p16 floating point number.
static Eina_F16p16	eina_f16p16_add (Eina_F16p16 a, Eina_F16p16 b)
	Calculates the sum of two Eina_F16p16 floating point numbers.
static Eina_F16p16	eina_f16p16_sub (Eina_F16p16 a, Eina_F16p16 b)
	Calculates the subtraction of two Eina_F16p16 floating point numbers.
static Eina_F16p16	eina_f16p16_mul (Eina_F16p16 a, Eina_F16p16 b)
	Calculates the multiplication of two Eina_F16p16 floating point numbers.
static Eina_F16p16	eina_f16p16_scale (Eina_F16p16 a, int b)
	Calculates the scale multiplication of one Eina_F16p16 floating point number with an integer.
static Eina_F16p16	eina_f16p16_div (Eina_F16p16 a, Eina_F16p16 b)
	Calculates the division of two Eina_F16p16 floating point numbers.
static Eina_F16p16	eina_f16p16_sqrt (Eina_F16p16 a)
	Calculates the square root of an Eina_F16p16 floating point number.
static unsigned int	eina_f16p16_fracc_get (Eina_F16p16 v)
	Gets the absolute value of the integer part of and Eina_F16p16 floating point number.
static Eina_F8p24	eina_f8p24_int_from (int32_t v)
	Creates a new Eina_F16p316 floating point number from standard 32-bit integer.
static int32_t	eina_f8p24_int_to (Eina_F8p24 v)
	Creates a new standard 32-bit integer from Eina_F8p24 floating point number.
static Eina_F8p24	eina_f8p24_float_from (float v)
	Creates a new Eina_F8p24 floating point number from standard float.
static float	eina_f8p24_float_to (Eina_F8p24 v)
	Create a new standard float from Eina_F8p24 floating point number.
static Eina_F8p24	eina_f8p24_add (Eina_F8p24 a, Eina_F8p24 b)
	Calculates the sum of two Eina_F8p24 floating point numbers.
static Eina_F8p24	eina_f8p24_sub (Eina_F8p24 a, Eina_F8p24 b)
	Calculates the subtraction of two Eina_F8p24 floating point numbers.
static Eina_F8p24	eina_f8p24_mul (Eina_F8p24 a, Eina_F8p24 b)
	Calculates the multiplication of two Eina_F8p24 floating point numbers.
static Eina_F8p24	eina_f8p24_scale (Eina_F8p24 a, int b)
	Calculates the scale multiplication of one Eina_F8p24 floating point number with an integer.
static Eina_F8p24	eina_f8p24_div (Eina_F8p24 a, Eina_F8p24 b)
	Calculates the division of two Eina_F8p24 floating point numbers.
static Eina_F8p24	eina_f8p24_sqrt (Eina_F8p24 a)
	Calculates the square root of an Eina_F8p24 floating point number.
static unsigned int	eina_f8p24_fracc_get (Eina_F8p24 v)
	Gets the absolute value of the integer part of and Eina_F8p24 floating point number.
static Eina_F32p32	eina_f16p16_to_f32p32 (Eina_F16p16 a)
	Converts an Eina_F16p16 floating point number into Eina_F32p32 format.
static Eina_F32p32	eina_f8p24_to_f32p32 (Eina_F8p24 a)
	Converts an Eina_F8p24 floating point number into Eina_F32p32 format.
static Eina_F16p16	eina_f32p32_to_f16p16 (Eina_F32p32 a)
	Converts an Eina_F32p32 floating point number into Eina_F16p16 format.
static Eina_F16p16	eina_f8p24_to_f16p16 (Eina_F8p24 a)
	Converts an Eina_F8p24 floating point number into Eina_F16p16 format.
static Eina_F8p24	eina_f32p32_to_f8p24 (Eina_F32p32 a)
	Converts an Eina_F32p32 floating point number into Eina_F8p24 format.
static Eina_F8p24	eina_f16p16_to_f8p24 (Eina_F16p16 a)
	Converts an Eina_F16p16 floating point number into Eina_F8p16 format.
Typedefs
typedef int64_t	Eina_F32p32
typedef int32_t	Eina_F16p16
typedef int32_t	Eina_F8p24
Defines
#define	EINA_F32P32_PI 0x00000003243f6a89
	Yields the 32-bit PI constant.
#define	eina_fp32p32_llabs(a) ((a < 0) ? -(a) : (a))
	Gets the absolute value of an Eina_F32p32 floating point number.
#define	EINA_F16P16_ONE (1 << 16)
#define	EINA_F16P16_HALF (1 << 15)

Define Documentation

#define EINA_F16P16_HALF (1 << 15)

Yields the maximum 16-bit signed integer size (= 32768)

#define EINA_F16P16_ONE (1 << 16)

Yields the maximum 16-bit unsigned integer size (= 65536)

#define eina_fp32p32_llabs ( a ) ((a < 0) ? -(a) : (a))

Gets the absolute value of an Eina_F32p32 floating point number.

Parameters:

a	The floating point number

Returns:: The absolute value for the number a

Warning:: Has known issues on 64-bit architecture, prefer eina_f32p32_fracc_get() instead

Typedef Documentation

Eina_F16p16

Type for floating point number where the size of the integer part is 16-bit and the size of the decimal part is 16-bit

Eina_F32p32

Type for floating point number where the size of the integer part is 32-bit and the size of the decimal part is 32-bit

Eina_F8p24

Type for floating point number where the size of the integer part is 8-bit and the size of the decimal part is 24bits

Function Documentation

static Eina_F16p16 eina_f16p16_add	(	Eina_F16p16	a,
		Eina_F16p16	b
	)		`[static]`

Calculates the sum of two Eina_F16p16 floating point numbers.

Parameters:

a	The first number
b	The second number

Returns:: The sum result of the two numbers a + b

static Eina_F16p16 eina_f16p16_div	(	Eina_F16p16	a,
		Eina_F16p16	b
	)		`[static]`

Calculates the division of two Eina_F16p16 floating point numbers.

Parameters:

a	The numerator number
b	The denominator number

Returns:: The division result of the two numbers a / b

static Eina_F16p16 eina_f16p16_double_from ( double v ) [static]

Creates a new Eina_F16p16 floating point number from standard double.

Parameters:

v	Double value to convert

Returns:: The value converted into Eina_F16p16 format

static double eina_f16p16_double_to ( Eina_F16p16 v ) [static]

Creates a new standard double from Eina_F16p16 floating point number.

Parameters:

v	Eina_F16p16 value to convert

Returns:: The value converted into double

static Eina_F16p16 eina_f16p16_float_from ( float v ) [static]

Creates a new Eina_F16p16 floating point number from standard float.

Parameters:

v	Float value to convert

Returns:: The value converted into Eina_F16p16 format

static float eina_f16p16_float_to ( Eina_F16p16 v ) [static]

Creates a new standard float from Eina_F16p16 floating point number.

Parameters:

v	Eina_F16p16 value to convert

Returns:: The value converted into float

static unsigned int eina_f16p16_fracc_get ( Eina_F16p16 v ) [static]

Gets the absolute value of the integer part of and Eina_F16p16 floating point number.

Parameters:

v	The floating point number

Returns:: The positive integer part of the number v

static Eina_F16p16 eina_f16p16_int_from ( int32_t v ) [static]

Creates a new Eina_F16p316 floating point number from standard 32-bit integer.

Parameters:

v	32-bit integer value to convert

Returns:: The value converted into Eina_F16p16 format

static int32_t eina_f16p16_int_to ( Eina_F16p16 v ) [static]

Creates a new standard 32-bit integer from Eina_F16p16 floating point number.

Parameters:

v	Eina_F16p16 value to convert

Returns:: The value converted into 32-bit integer

static Eina_F16p16 eina_f16p16_mul	(	Eina_F16p16	a,
		Eina_F16p16	b
	)		`[static]`

Calculates the multiplication of two Eina_F16p16 floating point numbers.

Parameters:

a	The first number
b	The second number

Returns:: The multiplication result of the two numbers a * b

static Eina_F16p16 eina_f16p16_scale	(	Eina_F16p16	a,
		int	b
	)		`[static]`

Calculates the scale multiplication of one Eina_F16p16 floating point number with an integer.

Parameters:

a	The Eina_F16p16 number
b	The integer value

Returns:: The multiplication result of the two numbers a * b

static Eina_F16p16 eina_f16p16_sqrt ( Eina_F16p16 a ) [static]

Calculates the square root of an Eina_F16p16 floating point number.

Parameters:

a	The number to calculate the square root from

Returns:: The square root result for the number a

static Eina_F16p16 eina_f16p16_sub	(	Eina_F16p16	a,
		Eina_F16p16	b
	)		`[static]`

Calculates the subtraction of two Eina_F16p16 floating point numbers.

Parameters:

a	The first number
b	The subtracted number

Returns:: The subtraction result of the two numbers a - b

static Eina_F32p32 eina_f16p16_to_f32p32 ( Eina_F16p16 a ) [static]

Converts an Eina_F16p16 floating point number into Eina_F32p32 format.

Parameters:

a	The Eina_F16p16 floating point number

Returns:: The converted Eina_F32p32 floating point number

static Eina_F8p24 eina_f16p16_to_f8p24 ( Eina_F16p16 a ) [static]

Converts an Eina_F16p16 floating point number into Eina_F8p16 format.

Parameters:

a	The Eina_F16p16 floating point number

Returns:: The converted Eina_F8p16 floating point number

static Eina_F32p32 eina_f32p32_add	(	Eina_F32p32	a,
		Eina_F32p32	b
	)		`[static]`

Calculates the sum of two Eina_F32p32 floating point numbers.

Parameters:

a	The first number
b	The second number

Returns:: The sum result of the two numbers a + b

Eina_F32p32 eina_f32p32_cos ( Eina_F32p32 a )

Calculates the cosinus of a floating point number.

Parameters:

a	The angle in radians to calculate the cosinus from.

Returns:: The cosinus value of the angle a

Since :: 3.0

static Eina_F32p32 eina_f32p32_div	(	Eina_F32p32	a,
		Eina_F32p32	b
	)		`[static]`

Calculates the division of two Eina_F32p32 floating point numbers.

Parameters:

a	The numerator number
b	The denominator number

Returns:: The division result of the two numbers a / b

static Eina_F32p32 eina_f32p32_double_from ( double v ) [static]

Creates a new Eina_F32p32 floating point number from standard double.

Parameters:

v	Double value to convert

Returns:: The value converted into Eina_F32p32 format

static double eina_f32p32_double_to ( Eina_F32p32 v ) [static]

Creates a new standard double from Eina_F32p32 floating point number.

Parameters:

v	Eina_F32p32 value to convert

Returns:: The value converted into double

static unsigned int eina_f32p32_fracc_get ( Eina_F32p32 v ) [static]

Gets the absolute value of the integer part of and Eina_F32p32 floating point number.

Parameters:

v	The floating point number

Returns:: The positive integer part of the number v

static Eina_F32p32 eina_f32p32_int_from ( int32_t v ) [static]

Creates a new Eina_F32p32 floating point number from standard 32-bit integer.

Parameters:

v	32-bit integer value to convert

Returns:: The value converted into Eina_F32p32 format

static int32_t eina_f32p32_int_to ( Eina_F32p32 v ) [static]

Creates a new standard 32-bit integer from Eina_F32p32 floating point number.

Parameters:

v	Eina_F32p32 value to convert

Returns:: The value converted into 32-bit integer

static Eina_F32p32 eina_f32p32_mul	(	Eina_F32p32	a,
		Eina_F32p32	b
	)		`[static]`

Calculates the multiplication of two Eina_F32p32 floating point numbers.

Parameters:

a	The first number
b	The second number

Returns:: The multiplication result of the two numbers a * b

To prevent overflow during multiplication we need to reduce the precision of the fraction part Shift both values to only contain 16 bit of the fraction part (rounded). After multiplication we again have a value with a 32-bit fraction part.

static Eina_F32p32 eina_f32p32_scale	(	Eina_F32p32	a,
		int	b
	)		`[static]`

Calculates the scale multiplication of one Eina_F32p32 floating point number with an integer.

Parameters:

a	The Eina_F32p32 number
b	The integer value

Returns:: The multiplication result of the two numbers a * b

Eina_F32p32 eina_f32p32_sin ( Eina_F32p32 a )

Calculates the sinus of a floating point number.

Parameters:

a	The angle in radians to calculate the sinus from.

Returns:: The cosinus value of the angle a

Since :: 3.0

static Eina_F32p32 eina_f32p32_sqrt ( Eina_F32p32 a ) [static]

Calculates the square root of an Eina_F32p32 floating point number.

Parameters:

a	The number to calculate the square root from

Returns:: The square root result for the number a

static Eina_F32p32 eina_f32p32_sub	(	Eina_F32p32	a,
		Eina_F32p32	b
	)		`[static]`

Calculates the subtraction of two Eina_F32p32 floating point numbers.

Parameters:

a	The first number
b	The subtracted number

Returns:: The subtraction result of the two numbers a - b

static Eina_F16p16 eina_f32p32_to_f16p16 ( Eina_F32p32 a ) [static]

Converts an Eina_F32p32 floating point number into Eina_F16p16 format.

Parameters:

a	The Eina_F32p32 floating point number

Returns:: The converted Eina_F16p16 floating point number

static Eina_F8p24 eina_f32p32_to_f8p24 ( Eina_F32p32 a ) [static]

Converts an Eina_F32p32 floating point number into Eina_F8p24 format.

Parameters:

a	The Eina_F32p32 floating point number

Returns:: The converted Eina_F8p16 floating point number

static Eina_F8p24 eina_f8p24_add	(	Eina_F8p24	a,
		Eina_F8p24	b
	)		`[static]`

Calculates the sum of two Eina_F8p24 floating point numbers.

Parameters:

a	The first number
b	The second number

Returns:: The sum result of the two numbers a + b

static Eina_F8p24 eina_f8p24_div	(	Eina_F8p24	a,
		Eina_F8p24	b
	)		`[static]`

Calculates the division of two Eina_F8p24 floating point numbers.

Parameters:

a	The numerator number
b	The denominator number

Returns:: The division result of the two numbers a / b

static Eina_F8p24 eina_f8p24_float_from ( float v ) [static]

Creates a new Eina_F8p24 floating point number from standard float.

Parameters:

v	Float value to convert

Returns:: The value converted into Eina_F8p24 format

static float eina_f8p24_float_to ( Eina_F8p24 v ) [static]

Create a new standard float from Eina_F8p24 floating point number.

Parameters:

v	Eina_F8p24 value to convert

Returns:: The value converted into float

static unsigned int eina_f8p24_fracc_get ( Eina_F8p24 v ) [static]

Gets the absolute value of the integer part of and Eina_F8p24 floating point number.

Parameters:

v	The floating point number

Returns:: The positive integer part of the number v

static Eina_F8p24 eina_f8p24_int_from ( int32_t v ) [static]

Creates a new Eina_F16p316 floating point number from standard 32-bit integer.

Parameters:

v	32-bit integer value to convert

Returns:: The value converted into Eina_F8p24 format

static int32_t eina_f8p24_int_to ( Eina_F8p24 v ) [static]

Creates a new standard 32-bit integer from Eina_F8p24 floating point number.

Parameters:

v	Eina_F8p24 value to convert

Returns:: The value converted into 32-bit integer

static Eina_F8p24 eina_f8p24_mul	(	Eina_F8p24	a,
		Eina_F8p24	b
	)		`[static]`

Calculates the multiplication of two Eina_F8p24 floating point numbers.

Parameters:

a	The first number
b	The second number

Returns:: The multiplication result of the two numbers a * b

static Eina_F8p24 eina_f8p24_scale	(	Eina_F8p24	a,
		int	b
	)		`[static]`

Calculates the scale multiplication of one Eina_F8p24 floating point number with an integer.

Parameters:

a	The Eina_F16p16 number
b	The integer value

Returns:: The multiplication result of the two numbers a * b

static Eina_F8p24 eina_f8p24_sqrt ( Eina_F8p24 a ) [static]

Calculates the square root of an Eina_F8p24 floating point number.

Parameters:

a	The number to calculate the square root from

Returns:: The square root result for the number a

static Eina_F8p24 eina_f8p24_sub	(	Eina_F8p24	a,
		Eina_F8p24	b
	)		`[static]`

Calculates the subtraction of two Eina_F8p24 floating point numbers.

Parameters:

a	The first number
b	The subtracted number

Returns:: The subtraction result of the two numbers a - b

static Eina_F16p16 eina_f8p24_to_f16p16 ( Eina_F8p24 a ) [static]

Converts an Eina_F8p24 floating point number into Eina_F16p16 format.

Parameters:

a	The Eina_F8p24 floating point number

Returns:: The converted Eina_F16p16 floating point number

static Eina_F32p32 eina_f8p24_to_f32p32 ( Eina_F8p24 a ) [static]

Converts an Eina_F8p24 floating point number into Eina_F32p32 format.

Parameters:

a	The Eina_F8p24 floating point number

Returns:: The converted Eina_F32p32 floating point number

Functions

Typedefs

Defines

Define Documentation

Typedef Documentation

Function Documentation