mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-27 02:09:14 -05:00
98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2016 F4EXB //
|
|
// written by Edouard Griffiths //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SDRBASE_DSP_HBFILTERTRAITS_H_
|
|
#define SDRBASE_DSP_HBFILTERTRAITS_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
// uses Q1.14 format internally, input and output are S16
|
|
|
|
/*
|
|
* supported filter orders: 96, 80, 64, 48, 32
|
|
* any usage of another value will be prevented by compilation errors
|
|
*/
|
|
template<uint32_t HBFilterOrder>
|
|
struct HBFIRFilterTraits
|
|
{
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<32>
|
|
{
|
|
static const int32_t hbOrder = 32;
|
|
static const int32_t hbShift = 14;
|
|
static const int16_t hbMod[32+6];
|
|
static const int32_t hbCoeffs[8] __attribute__ ((aligned (32)));
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<48>
|
|
{
|
|
static const int32_t hbOrder = 48;
|
|
static const int32_t hbShift = 14;
|
|
static const int16_t hbMod[48+6];
|
|
static const int32_t hbCoeffs[12] __attribute__ ((aligned (16)));
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<64>
|
|
{
|
|
static const int32_t hbOrder = 64;
|
|
static const int32_t hbShift = 14;
|
|
static const int16_t hbMod[64+6];
|
|
static const int32_t hbCoeffs[16] __attribute__ ((aligned (32)));
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<80>
|
|
{
|
|
static const int32_t hbOrder = 80;
|
|
static const int32_t hbShift = 14;
|
|
static const int16_t hbMod[80+6];
|
|
static const int32_t hbCoeffs[20] __attribute__ ((aligned (16)));
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<96>
|
|
{
|
|
static const int32_t hbOrder = 96;
|
|
static const int32_t hbShift = 16;
|
|
static const int16_t hbMod[96+6];
|
|
static const int32_t hbCoeffs[24] __attribute__ ((aligned (32)));
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<112>
|
|
{
|
|
static const int32_t hbOrder = 112;
|
|
static const int32_t hbShift = 19;
|
|
static const int16_t hbMod[112+6];
|
|
static const int32_t hbCoeffs[28] __attribute__ ((aligned (16)));
|
|
};
|
|
|
|
template<>
|
|
struct HBFIRFilterTraits<128>
|
|
{
|
|
static const int32_t hbOrder = 128;
|
|
static const int32_t hbShift = 19;
|
|
static const int16_t hbMod[128+6];
|
|
static const int32_t hbCoeffs[32] __attribute__ ((aligned (16)));
|
|
};
|
|
|
|
#endif /* SDRBASE_DSP_HBFILTERTRAITS_H_ */
|