XMLoadInt4A function (directxmath.h)

Article
02/22/2024

Loads 16-byte aligned data into an XMVECTOR, without type checking.

Note This function is provided for backward compatibility with the Xbox Math library. It is recommended that XMLoadInt4A be used when loading integer data and XMLoadFloat4A be used when loading floating point data.

Syntax

XMVECTOR XM_CALLCONV XMLoadInt4A(
  [in] const uint32_t *pSource
) noexcept;

Parameters

[in] pSource

Address of the 16-byte aligned data to load.

Return value

Returns an XMVECTOR loaded with the data from the pSource parameter.

Remarks

To convert the loaded XMVECTOR into float values, use XMConvertVectorUIntToFloat or XMConvertVectorIntToFloat.

The following pseudocode demonstrates the operation of the function.

XMVECTOR vectorOut;

uint32_t* pElement = (uint32_t*)pSource;

assert(((uint32_t_PTR)pSource & 0xF) == 0);

V.u[0] = pElement[0];
V.u[1] = pElement[1];
V.u[2] = pElement[2];
V.u[3] = pElement[3];
	
return vectorOut;

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
Target Platform	Windows
Header	directxmath.h

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