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XMHALF2 structure (directxpackedvector.h)

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A 2D vector consisting of two half-precision (16bit) floating-point values.

For a list of additional functionality such as constructors and operators that are available using XMHALF2 when you are programming in C++, see XMHALF2 Extensions.

Note  See DirectXMath Library Type Equivalences for information about equivalent D3DDECLTYPE, D3DFORMAT, and DXGI_FORMAT objects.
 

Syntax

struct XMHALF2 {
  union {
    struct {
      HALF x;
      HALF y;
    };
    uint32_t v;
  };
  void      XMHALF2();
  void      XMHALF2(
    const XMHALF2 & unnamedParam1
  );
  XMHALF2 & operator=(
    const XMHALF2 & unnamedParam1
  );
  void      XMHALF2(
    XMHALF2 && unnamedParam1
  );
  XMHALF2 & operator=(
    XMHALF2 && unnamedParam1
  );
  void      XMHALF2(
    uint32_t Packed
  ) noexcept;
  void      XMHALF2(
    HALF _x,
    HALF _y
  ) noexcept;
  void      XMHALF2(
    const HALF *pArray
  ) noexcept;
  void      XMHALF2(
    float _x,
    float _y
  ) noexcept;
  void      XMHALF2(
    const float *pArray
  ) noexcept;
  XMHALF2 & operator=(
    uint32_t Packed
  ) noexcept;
};

Members

x

HALF value describing the x-coordinate.

y

HALF value describing the y-coordinate.

v

void XMHALF2()

Default constructor for XMHALF2.

Default constructor for XMHALF2.

Note  This constructor is only available under C++.
 

void XMHALF2( const XMHALF2 & unnamedParam1)

A constructor for XMHALF2.

A constructor for XMHALF2.

Note  This constructor is only available under C++.

XMHALF2 & operator=( const XMHALF2 & unnamedParam1)

Assigns the vector component data from one instance of XMHALF2 to the current instance of XMHALF2.

This operator assigns the vector component data from one instance of XMHALF2 to the current instance of XMHALF2.

Note  This constructor is only available under C++.

void XMHALF2( XMHALF2 && unnamedParam1)

A constructor for XMHALF2.

A constructor for XMHALF2.

Note  This constructor is only available under C++.

XMHALF2 & operator=( XMHALF2 && unnamedParam1)

void XMHALF2( uint32_t Packed) noexcept

A constructor for XMHALF2.

A constructor for XMHALF2.

Note  This constructor is only available under C++.

void XMHALF2( HALF _x, HALF _y) noexcept

Initializes a new instance of XMHALF2 from two HALF arguments.

This constructor initializes a new instance of XMHALF2 from two HALF arguments.

Note  This constructor is only available under C++.
 

void XMHALF2( const HALF *pArray) noexcept

Initializes a new instance of XMHALF2 from a two element HALF array argument.

This constructor initializes a new instance of XMHALF2 from a two element HALF array argument.

Note  This constructor is only available under C++.

void XMHALF2( float _x, float _y) noexcept

Initializes a new instance of XMHALF2 from two float arguments.

This constructor initializes a new instance of XMHALF2 from two float arguments.

Note  This constructor is only available under C++.
 

void XMHALF2( const float *pArray) noexcept

Initializes a new instance of XMHALF2 from a two element float array argument.

This constructor initializes a new instance of** XMHALF2** from a two element float array argument.

Note  This constructor is only available under C++.

XMHALF2 & operator=( uint32_t Packed) noexcept

Remarks

The definition of the HALF type used under DirectXMath is consistent with the IEEE standard, and consists of a sign bit, a 5 bit biased exponent, and a 10 bit mantissa:


                    [15] SEEEEEMMMMMMMMMM [0]

XMHALF2 can be loaded into instances of XMVECTOR by using XMLoadHalf2.

Instances of XMVECTOR can be stored into an instance of XMHALF2 with XMStoreHalf2.

Namespace: Use DirectX::PackedVector

Platform Requirements

Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.

Requirements

Requirement Value
Header directxpackedvector.h

See also

DirectXMath Library Structures

XMHALF2 Extensions