vload_half

Read a half float from a pointer to memory.

float vload_half ( size_t offset,
  const __global half *p)
float vload_half ( size_t offset,
  const __local half *p)
float vload_half ( size_t offset,
  const __constant half *p)
float vload_half ( size_t offset,
  const __private half *p)

Description

Read sizeof(half) bytes of data from address (p + offset). The data read is interpreted as a half value.

The half value is converted to a float value and the float value is returned. The read address computed as (p + offset) must be 16-bit aligned.

Notes

Vector Data Load and Store Functions allow you to read and write vector types from a pointer to memory.

The results of vector data load and store functions are undefined if the address being read from or written to is not correctly aligned. The pointer argument p can be a pointer to __global, __local, or __private memory for store functions. The pointer argument p can be a pointer to __global, __local, __constant or __private memory for load functions.

Specification

OpenCL Specification

Also see

Vector Data Load and Store Functions

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