cpu.c File Reference

Include dependency graph for cpu.c:

Functions
unsigned	vlc_CPU_raw (void)
	Determines the CPU capabilities. More...
unsigned	vlc_CPU (void)
	Retrieves CPU capability flags. More...
void	vlc_CPU_dump (vlc_object_t *obj)
void	vlc_CPU_functions_init (const char *capability, void *restrict funcs)
	Initialises DSP functions. More...

Function Documentation

vlc_CPU()

unsigned vlc_CPU

(

void

)

Retrieves CPU capability flags.

References unlikely, and vlc_CPU_raw().

vlc_CPU_dump()

void vlc_CPU_dump

(

vlc_object_t *

obj

)

References msg_Dbg, vlc_memstream::stream, vlc_memstream_close(), vlc_memstream_open(), and vlc_memstream_puts().

Referenced by libvlc_InternalInit().

vlc_CPU_functions_init()

void vlc_CPU_functions_init	(	const char *	name,
		void *restrict	funcs
	)

Initialises DSP functions.

This helper looks for accelerated Digital Signal Processing functions identified by the supplied type name. Those functions ares typically implemented using architecture-specific assembler code with Single Instruction Multiple Data (SIMD) opcodes for faster processing.

The exact purposes and semantics of the DSP functions is uniquely identified by a nul-terminated string.

Note

This function should not be used directly. It is recommended to use the convenience wrapper vlc_CPU_functions_init_once() instead.

Parameters

	name	nul-terminated type identifier (cannot be NULL)
[in,out]	funcs	type-specific data structure to be initialised

References init, likely, vlc_module_map(), and vlc_module_match().

Referenced by vlc_CPU_functions_init_once().

vlc_CPU_raw()

unsigned vlc_CPU_raw

(

void

)

Determines the CPU capabilities.

Computes CPU capability flags.

Referenced by vlc_CPU().