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XMDEC4 structure (directxpackedvector.h)

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A 4D vector with x-,y-, and z- components represented as 10 bit signed integer values, and the w-component as a 2 bit signed integer value.

For a list of additional functionality such as constructors and operators that are available using XMDEC4 when you are programming in C++, see XMDEC4 Extensions.

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

Syntax

struct XMDEC4 {
  union {
    struct {
      int32_t x : 10;
      int32_t y : 10;
      int32_t z : 10;
      int32_t w : 2;
    };
             uint32_t v;
  };
  void     XMDEC4();
  void     XMDEC4(
    const XMDEC4 & unnamedParam1
  );
  XMDEC4 & operator=(
    const XMDEC4 & unnamedParam1
  );
  void     XMDEC4(
    XMDEC4 && unnamedParam1
  );
  XMDEC4 & operator=(
    XMDEC4 && unnamedParam1
  );
  void     XMDEC4(
    uint32_t Packed
  ) noexcept;
  void     XMDEC4(
    float _x,
    float _y,
    float _z,
    float _w
  ) noexcept;
  void     XMDEC4(
    const float *pArray
  ) noexcept;
  void     operator uint32_t() noexcept;
  XMDEC4 & operator=(
    uint32_t Packed
  ) noexcept;
};

Members

x

Signed integer value in the range [-511, 511] describing the x-coordinate of the vector.

y

Signed integer value in the range [-511, 511] describing the y-coordinate of the vector.

z

Signed integer value in the range [-511, 511] describing the z-coordinate of the vector.

w

Signed integer value in the range [-1, 1] describing the w-coordinate of the vector.

v

Unsigned 32-bit integer representing the 4D vector.

void XMDEC4()

Default constructor for XMDEC4.

Default constructor for XMDEC4 .

Note  This constructor is only available under C++.
 

void XMDEC4( const XMDEC4 & unnamedParam1)

A constructor for XMDEC4.

A constructor for XMDEC4 .

Note  This constructor is only available under C++.

XMDEC4 & operator=( const XMDEC4 & unnamedParam1)

void XMDEC4( XMDEC4 && unnamedParam1)

A constructor for XMDEC4.

A constructor for XMDEC4.

Note  This constructor is only available under C++.

XMDEC4 & operator=( XMDEC4 && unnamedParam1)

Assigns the vector component data from one instance of XMDEC4 to the current instance of XMDEC4.

This operator assigns the vector component data from one instance of XMDEC4 to the current instance of XMDEC4.

Note  This constructor is only available under C++.

void XMDEC4( uint32_t Packed) noexcept

Initializes a new instance of XMDEC4 from a uint32_t variable containing component data in a packed format.

This constructor initializes a new instance of XMDEC4 from a uint32_t variable containing component data in a packed format.

Note  This constructor is only available under C++.
 

void XMDEC4( float _x, float _y, float _z, float _w) noexcept

Initializes a new instance of XMDEC4 from four float arguments.

This constructor initializes a new instance of XMDEC4 from four float arguments.

Note  This constructor is only available under C++.
 

void XMDEC4( const float *pArray) noexcept

Initializes a new instance of XMDEC4 from a four element float array argument.

This constructor initializes a new instance of XMDEC4 from a from a four element float array argument.

Note  This constructor is only available under C++.

void operator uint32_t() noexcept

Assigns the vector component data packed in an instance of uint32_t to the current instance of XMDEC4.

This operator assigns the vector component data packed in an instance of uint32_t to the current instance of XMDEC4.

Note  This operator is only available under C++.
 

XMDEC4 & operator=( uint32_t Packed) noexcept

Remarks

XMDEC4 can be loaded into instances of XMVECTOR by using XMLoadDec4.

Instances of XMVECTOR can be stored into an instance of XMDEC4 with XMStoreDec4.

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

XMDEC4 Extensions