gr_fir_fff_simd Class Reference
common base class for SIMD versions of gr_fir_fffThis base class handles alignment issues common to SSE and 3DNOW subclasses. More...
#include <gr_fir_fff_simd.h>
Inheritance diagram for gr_fir_fff_simd:
Public Member Functions | |
| gr_fir_fff_simd () | |
| gr_fir_fff_simd (const std::vector< float > &taps) | |
| ~gr_fir_fff_simd () | |
| virtual void | set_taps (const std::vector< float > &taps) |
install new_taps as the current taps. | |
| virtual float | filter (const float input[]) |
| compute a single output value. | |
Protected Types | |
| typedef float(* | float_dotprod_t )(const float *input, const float *taps, unsigned n_4_float_blocks) |
Protected Attributes | |
| float * | d_aligned_taps [4] |
| float_dotprod_t | d_float_dotprod |
Detailed Description
common base class for SIMD versions of gr_fir_fff
This base class handles alignment issues common to SSE and 3DNOW subclasses.
Member Typedef Documentation
typedef float(* gr_fir_fff_simd::float_dotprod_t)(const float *input, const float *taps, unsigned n_4_float_blocks) [protected] |
Constructor & Destructor Documentation
| gr_fir_fff_simd::gr_fir_fff_simd | ( | ) |
| gr_fir_fff_simd::gr_fir_fff_simd | ( | const std::vector< float > & | taps | ) |
| gr_fir_fff_simd::~gr_fir_fff_simd | ( | ) |
Member Function Documentation
| virtual float gr_fir_fff_simd::filter | ( | const float | 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_fff_generic.
| virtual void gr_fir_fff_simd::set_taps | ( | const std::vector< float > & | taps | ) | [virtual] |
install new_taps as the current taps.
Reimplemented from gr_fir_fff.
Member Data Documentation
float* gr_fir_fff_simd::d_aligned_taps[4] [protected] |
aligned_taps holds 4 copies of the coefficients preshifted by 0, 1, 2, or 3 floats to meet all possible input data alignments. This allows us to always fetch data and taps that are 128-bit aligned.
float_dotprod_t gr_fir_fff_simd::d_float_dotprod [protected] |
The documentation for this class was generated from the following file:
