Tizen Native API  5.5

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 cosine of a floating point number.
Eina_F32p32 eina_f32p32_sin (Eina_F32p32 a)
 Calculates the sine 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:
[in]aThe 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

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

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

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:
[in]aThe first number
[in]bThe 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:
[in]aThe numerator number
[in]bThe 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:
[in]vDouble 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:
[in]vEina_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:
[in]vFloat 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:
[in]vEina_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:
[in]vThe 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:
[in]v32-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:
[in]vEina_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:
[in]aThe first number
[in]bThe 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:
[in]aThe Eina_F16p16 number
[in]bThe 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:
[in]aThe 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:
[in]aThe first number
[in]bThe subtracted number
Returns:
The subtraction result of the two numbers a - b

Converts an Eina_F16p16 floating point number into Eina_F32p32 format.

Parameters:
[in]aThe Eina_F16p16 floating point number
Returns:
The converted Eina_F32p32 floating point number

Converts an Eina_F16p16 floating point number into Eina_F8p16 format.

Parameters:
[in]aThe 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:
[in]aThe first number
[in]bThe second number
Returns:
The sum result of the two numbers a + b

Calculates the cosine of a floating point number.

Parameters:
[in]aThe angle in radians to calculate the cosine from.
Returns:
The cosine of the angle a
Since :
3.0f(2.3.1)
static Eina_F32p32 eina_f32p32_div ( Eina_F32p32  a,
Eina_F32p32  b 
) [static]

Calculates the division of two Eina_F32p32 floating point numbers.

Parameters:
[in]aThe numerator number
[in]bThe 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:
[in]vDouble 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:
[in]vEina_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:
[in]vThe 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:
[in]v32-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:
[in]vEina_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:
[in]aThe first number
[in]bThe 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:
[in]aThe Eina_F32p32 number
[in]bThe integer value
Returns:
The multiplication result of the two numbers a * b

Calculates the sine of a floating point number.

Parameters:
[in]aThe angle in radians to calculate the sine from.
Returns:
The cosine of the angle a
Since :
3.0f(2.3.1)
static Eina_F32p32 eina_f32p32_sqrt ( Eina_F32p32  a) [static]

Calculates the square root of an Eina_F32p32 floating point number.

Parameters:
[in]aThe 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:
[in]aThe first number
[in]bThe subtracted number
Returns:
The subtraction result of the two numbers a - b

Converts an Eina_F32p32 floating point number into Eina_F16p16 format.

Parameters:
[in]aThe Eina_F32p32 floating point number
Returns:
The converted Eina_F16p16 floating point number

Converts an Eina_F32p32 floating point number into Eina_F8p24 format.

Parameters:
[in]aThe 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:
[in]aThe first number
[in]bThe 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:
[in]aThe numerator number
[in]bThe 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:
[in]vFloat 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:
[in]vEina_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:
[in]vThe 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:
[in]v32-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:
[in]vEina_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:
[in]aThe first number
[in]bThe 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:
[in]aThe Eina_F16p16 number
[in]bThe 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:
[in]aThe 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:
[in]aThe first number
[in]bThe subtracted number
Returns:
The subtraction result of the two numbers a - b

Converts an Eina_F8p24 floating point number into Eina_F16p16 format.

Parameters:
[in]aThe Eina_F8p24 floating point number
Returns:
The converted Eina_F16p16 floating point number

Converts an Eina_F8p24 floating point number into Eina_F32p32 format.

Parameters:
[in]aThe Eina_F8p24 floating point number
Returns:
The converted Eina_F32p32 floating point number