The name Half is derived from half-precision floating-point number. It occupies only 16 bits, which are split into 1 Sign bit, 5 Exponent bits and 10 Mantissa bits. More...

Inherits ISerializable, IComparable< Half >, IFormattable, and IEquatable< Half >.

Public Member Functions
	Half (Single f)
	The new Half instance will convert the parameter into 16-bit half-precision floating-point. More...

	Half (Single f, bool throwOnError)
	The new Half instance will convert the parameter into 16-bit half-precision floating-point. More...

	Half (Double d)
	The new Half instance will convert the parameter into 16-bit half-precision floating-point. More...

	Half (Double d, bool throwOnError)
	The new Half instance will convert the parameter into 16-bit half-precision floating-point. More...

Single	ToSingle ()
	Converts the 16-bit half to 32-bit floating-point. More...

	Half (SerializationInfo info, StreamingContext context)
	Constructor used by ISerializable to deserialize the object. More...

void	GetObjectData (SerializationInfo info, StreamingContext context)
	Used by ISerialize to serialize the object. More...

void	FromBinaryStream (BinaryReader bin)
	Updates the Half by reading from a Stream. More...

void	ToBinaryStream (BinaryWriter bin)
	Writes the Half into a Stream. More...

bool	Equals (Half other)
	Returns a value indicating whether this instance is equal to a specified OpenTK.Half value. More...

int	CompareTo (Half other)
	Compares this instance to a specified half-precision floating-point number and returns an integer that indicates whether the value of this instance is less than, equal to, or greater than the value of the specified half-precision floating-point number. More...

override string	ToString ()
	Converts this Half into a human-legible string representation. More...

string	ToString (string format, IFormatProvider formatProvider)
	Converts this Half into a human-legible string representation. More...

Static Public Member Functions
static	operator Half (float f)
	Converts a System.Single to a OpenTK.Half. More...

static	operator Half (double d)
	Converts a System.Double to a OpenTK.Half. More...

static implicit	operator float (Half h)
	Converts a OpenTK.Half to a System.Single. More...

static implicit	operator double (Half h)
	Converts a OpenTK.Half to a System.Double. More...

static Half	Parse (string s)
	Converts the string representation of a number to a half-precision floating-point equivalent. More...

static Half	Parse (string s, System.Globalization.NumberStyles style, IFormatProvider provider)
	Converts the string representation of a number to a half-precision floating-point equivalent. More...

static bool	TryParse (string s, out Half result)
	Converts the string representation of a number to a half-precision floating-point equivalent. Returns success. More...

static bool	TryParse (string s, System.Globalization.NumberStyles style, IFormatProvider provider, out Half result)
	Converts the string representation of a number to a half-precision floating-point equivalent. Returns success. More...

static byte[]	GetBytes (Half h)
	Returns the Half as an array of bytes. More...

static Half	FromBytes (byte[] value, int startIndex)
	Converts an array of bytes into Half. More...

Public Attributes
UInt16	bits

const int	maxUlps = 1

Static Public Attributes
static readonly Int32	SizeInBytes = 2
	The size in bytes for an instance of the Half struct. More...

static readonly Single	MinValue = 5.96046448e-08f
	Smallest positive half More...

static readonly Single	MinNormalizedValue = 6.10351562e-05f
	Smallest positive normalized half More...

static readonly Single	MaxValue = 65504.0f
	Largest positive half More...

static readonly Single	Epsilon = 0.00097656f
	Smallest positive e for which half (1.0 + e) != half (1.0) More...

Properties
bool	IsZero `[get]`
	Returns true if the Half is zero. More...

bool	IsNaN `[get]`
	Returns true if the Half represents Not A Number (NaN) More...

bool	IsPositiveInfinity `[get]`
	Returns true if the Half represents positive infinity. More...

bool	IsNegativeInfinity `[get]`
	Returns true if the Half represents negative infinity. More...

Detailed Description

The name Half is derived from half-precision floating-point number. It occupies only 16 bits, which are split into 1 Sign bit, 5 Exponent bits and 10 Mantissa bits.

Quote from ARB_half_float_pixel specification: Any representable 16-bit floating-point value is legal as input to a GL command that accepts 16-bit floating-point data. The result of providing a value that is not a floating-point number (such as infinity or NaN) to such a command is unspecified, but must not lead to GL interruption or termination. Providing a denormalized number or negative zero to GL must yield predictable results.

Constructor & Destructor Documentation

OpenTK.Half.Half ( Single f )

The new Half instance will convert the parameter into 16-bit half-precision floating-point.

Parameters

f	32-bit single-precision floating-point number.

OpenTK.Half.Half	(	Single	f,
		bool	throwOnError
	)

The new Half instance will convert the parameter into 16-bit half-precision floating-point.

Parameters

f	32-bit single-precision floating-point number.
throwOnError	Enable checks that will throw if the conversion result is not meaningful.

OpenTK.Half.Half ( Double d )

The new Half instance will convert the parameter into 16-bit half-precision floating-point.

Parameters

d	64-bit double-precision floating-point number.

OpenTK.Half.Half	(	Double	d,
		bool	throwOnError
	)

The new Half instance will convert the parameter into 16-bit half-precision floating-point.

Parameters

d	64-bit double-precision floating-point number.
throwOnError	Enable checks that will throw if the conversion result is not meaningful.

OpenTK.Half.Half	(	SerializationInfo	info,
		StreamingContext	context
	)

Constructor used by ISerializable to deserialize the object.

Parameters

info
context

Member Function Documentation

int OpenTK.Half.CompareTo ( Half other )

Compares this instance to a specified half-precision floating-point number and returns an integer that indicates whether the value of this instance is less than, equal to, or greater than the value of the specified half-precision floating-point number.

Parameters

other A half-precision floating-point number to compare.

Returns

A signed number indicating the relative values of this instance and value. If the number is:

Less than zero, then this instance is less than other, or this instance is not a number (OpenTK.Half.NaN) and other is a number.

Zero: this instance is equal to value, or both this instance and other are not a number (OpenTK.Half.NaN), OpenTK.Half.PositiveInfinity, or OpenTK.Half.NegativeInfinity.

Greater than zero: this instance is greater than othrs, or this instance is a number and other is not a number (OpenTK.Half.NaN).

bool OpenTK.Half.Equals ( Half other )

Returns a value indicating whether this instance is equal to a specified OpenTK.Half value.

Parameters

other OpenTK.Half object to compare to this instance..

Returns: True, if other is equal to this instance; false otherwise.

void OpenTK.Half.FromBinaryStream ( BinaryReader bin )

Updates the Half by reading from a Stream.

Parameters

bin	A BinaryReader instance associated with an open Stream.

static Half OpenTK.Half.FromBytes	(	byte[]	value,
		int	startIndex
	)

static

Converts an array of bytes into Half.

Parameters

value	A Half in it's byte[] representation.
startIndex	The starting position within value.

Returns: A new Half instance.

static byte [] OpenTK.Half.GetBytes ( Half h )

static

Returns the Half as an array of bytes.

Parameters

h	The Half to convert.

Returns: The input as byte array.

void OpenTK.Half.GetObjectData	(	SerializationInfo	info,
		StreamingContext	context
	)

Used by ISerialize to serialize the object.

Parameters

info
context

static implicit OpenTK.Half.operator double ( Half h )

static

Converts a OpenTK.Half to a System.Double.

Parameters

h	The value to convert. A Half

Returns: The result of the conversion. A System.Double

static implicit OpenTK.Half.operator float ( Half h )

static

Converts a OpenTK.Half to a System.Single.

Parameters

h	The value to convert. A Half

Returns: The result of the conversion. A System.Single

static OpenTK.Half.operator Half ( float f )

explicitstatic

Converts a System.Single to a OpenTK.Half.

Parameters

f	The value to convert. A System.Single

Returns: The result of the conversion. A Half

static OpenTK.Half.operator Half ( double d )

explicitstatic

Converts a System.Double to a OpenTK.Half.

Parameters

d	The value to convert. A System.Double

Returns: The result of the conversion. A Half

static Half OpenTK.Half.Parse ( string s )

static

Converts the string representation of a number to a half-precision floating-point equivalent.

Parameters

s	String representation of the number to convert.

Returns: A new Half instance.

static Half OpenTK.Half.Parse	(	string	s,
		System.Globalization.NumberStyles	style,
		IFormatProvider	provider
	)

static

Converts the string representation of a number to a half-precision floating-point equivalent.

Parameters

s	String representation of the number to convert.
style	Specifies the format of s.
provider	Culture-specific formatting information.

Returns: A new Half instance.

void OpenTK.Half.ToBinaryStream ( BinaryWriter bin )

Writes the Half into a Stream.

Parameters

bin	A BinaryWriter instance associated with an open Stream.

Single OpenTK.Half.ToSingle ( )

Converts the 16-bit half to 32-bit floating-point.

Returns: A single-precision floating-point number.

override string OpenTK.Half.ToString ( )

Converts this Half into a human-legible string representation.

Returns: The string representation of this instance.

string OpenTK.Half.ToString	(	string	format,
		IFormatProvider	formatProvider
	)

Converts this Half into a human-legible string representation.

Parameters

format	Formatting for the output string.
formatProvider	Culture-specific formatting information.

Returns: The string representation of this instance.

static bool OpenTK.Half.TryParse	(	string	s,
		out Half	result
	)

static

Converts the string representation of a number to a half-precision floating-point equivalent. Returns success.

Parameters

s	String representation of the number to convert.
result	The Half instance to write to.

Returns: Success.

static bool OpenTK.Half.TryParse	(	string	s,
		System.Globalization.NumberStyles	style,
		IFormatProvider	provider,
		out Half	result
	)

static

Converts the string representation of a number to a half-precision floating-point equivalent. Returns success.

Parameters

s	String representation of the number to convert.
style	Specifies the format of s.
provider	Culture-specific formatting information.
result	The Half instance to write to.

Returns: Success.

Member Data Documentation

readonly Single OpenTK.Half.Epsilon = 0.00097656f

static

Smallest positive e for which half (1.0 + e) != half (1.0)

readonly Single OpenTK.Half.MaxValue = 65504.0f

static

Largest positive half

readonly Single OpenTK.Half.MinNormalizedValue = 6.10351562e-05f

static

Smallest positive normalized half

readonly Single OpenTK.Half.MinValue = 5.96046448e-08f

static

Smallest positive half

readonly Int32 OpenTK.Half.SizeInBytes = 2

static

The size in bytes for an instance of the Half struct.

Property Documentation

bool OpenTK.Half.IsNaN

get

Returns true if the Half represents Not A Number (NaN)

bool OpenTK.Half.IsNegativeInfinity

get

Returns true if the Half represents negative infinity.

bool OpenTK.Half.IsPositiveInfinity

get

Returns true if the Half represents positive infinity.

bool OpenTK.Half.IsZero

get

Returns true if the Half is zero.

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Properties

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

Property Documentation