gr_fir_scc_simd Class Reference

common base class for SIMD versions of gr_fir_sccThis base class handles alignment issues common to SSE and 3DNOW subclasses. More...

#include <gr_fir_scc_simd.h>

Inheritance diagram for gr_fir_scc_simd:

List of all members.

Public Member Functions
	gr_fir_scc_simd ()
	gr_fir_scc_simd (const std::vector< gr_complex > &taps)
	~gr_fir_scc_simd ()
virtual void	set_taps (const std::vector< gr_complex > &taps)
	install new_taps as the current taps.
virtual gr_complex	filter (const short input[])
	compute a single output value.
Protected Types
typedef void(*	complex_dotprod_t )(const short *input, const float *taps, unsigned n_2_complex_blocks, float *result)
Protected Attributes
float *	d_aligned_taps [4]
complex_dotprod_t	d_complex_dotprod

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Detailed Description

common base class for SIMD versions of gr_fir_scc

This base class handles alignment issues common to SSE and 3DNOW subclasses.

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Member Typedef Documentation

typedef void(* gr_fir_scc_simd::complex_dotprod_t)(const short *input, const float *taps, unsigned n_2_complex_blocks, float *result) [protected]

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Constructor & Destructor Documentation

gr_fir_scc_simd::gr_fir_scc_simd

(

)

gr_fir_scc_simd::gr_fir_scc_simd

(

const std::vector< gr_complex > &

taps

)

gr_fir_scc_simd::~gr_fir_scc_simd

(

)

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Member Function Documentation

virtual gr_complex gr_fir_scc_simd::filter

(

const short

input[]

)

[virtual]

compute a single output value.

input must have ntaps() valid entries. input[0] .. input[ntaps() - 1] are referenced to compute the output value.

Returns:

the filtered input value.

Reimplemented from gr_fir_scc_generic.

virtual void gr_fir_scc_simd::set_taps

(

const std::vector< gr_complex > &

taps

)

[virtual]

install new_taps as the current taps.

Reimplemented from gr_fir_scc.

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Member Data Documentation

float* gr_fir_scc_simd::d_aligned_taps[4] [protected]

aligned_taps holds 4 copies of the coefficients preshifted by 0, 1, 2, or 3 float pairs to meet all possible input data alignments. This allows us to always fetch data and taps that are 128-bit aligned.

complex_dotprod_t gr_fir_scc_simd::d_complex_dotprod [protected]

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The documentation for this class was generated from the following file:

• gr_fir_scc_simd.h