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sdrangel/sdrbase/dsp/inthalfbandfiltereo2i.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2016 F4EXB //
// written by Edouard Griffiths //
// //
// Integer half-band FIR based interpolator and decimator //
// This is the even/odd double buffer variant. Really useful only when SIMD is //
// used //
// //
// 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 INCLUDE_INTHALFBANDFILTEREO2I_H_
#define INCLUDE_INTHALFBANDFILTEREO2I_H_
#include <stdint.h>
#if defined(USE_AVX2)
#include <immintrin.h>
#elif defined(USE_SSE4_1)
#include <smmintrin.h>
#elif defined(USE_NEON)
#include <arm_neon.h>
#endif
#include "hbfiltertraits.h"
template<uint32_t HBFilterOrder>
class IntHalfbandFilterEO2Intrisics
{
public:
static void work(
int ptrA,
int ptrB,
int32_t evenA[2][HBFilterOrder],
int32_t evenB[2][HBFilterOrder],
int32_t oddA[2][HBFilterOrder],
int32_t oddB[2][HBFilterOrder],
int32_t& iAcc, int32_t& qAcc)
{
#if defined(USE_SSE4_1)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
const __m128i* h = (const __m128i*) HBFIRFilterTraits<HBFilterOrder>::hbCoeffs;
__m128i sumI = _mm_setzero_si128();
__m128i sumQ = _mm_setzero_si128();
__m128i sa, sb;
for (int i = 0; i < HBFIRFilterTraits<HBFilterOrder>::hbOrder / 16; i++)
{
if ((ptrB % 2) == 0)
{
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
}
else
{
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
}
a += 4;
b += 4;
++h;
}
// horizontal add of four 32 bit partial sums
sumI = _mm_add_epi32(sumI, _mm_srli_si128(sumI, 8));
sumI = _mm_add_epi32(sumI, _mm_srli_si128(sumI, 4));
iAcc = _mm_cvtsi128_si32(sumI);
sumQ = _mm_add_epi32(sumQ, _mm_srli_si128(sumQ, 8));
sumQ = _mm_add_epi32(sumQ, _mm_srli_si128(sumQ, 4));
qAcc = _mm_cvtsi128_si32(sumQ);
#elif defined(USE_NEON)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
int32x4_t sumI = vdupq_n_s32(0);
int32x4_t sumQ = vdupq_n_s32(0);
int32x4_t sa, sb, sh;
for (int i = 0; i < HBFIRFilterTraits<HBFilterOrder>::hbOrder / 16; i++)
{
sh = vld1q_s32(&HBFIRFilterTraits<HBFilterOrder>::hbCoeffs[4*i]);
if ((ptrB % 2) == 0)
{
sa = vld1q_s32(&(evenA[0][a]));
sb = vld1q_s32(&(evenB[0][b]));
sumI = vmlaq_s32(sumI, vaddq_s32(sa, sb), sh);
sa = vld1q_s32(&(evenA[1][a]));
sb = vld1q_s32(&(evenB[1][b]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa, sb), sh);
}
else
{
sa = vld1q_s32(&(oddA[0][a]));
sb = vld1q_s32(&(oddB[0][b]));
sumI = vmlaq_s32(sumI, vaddq_s32(sa, sb), sh);
sa = vld1q_s32(&(oddA[1][a]));
sb = vld1q_s32(&(oddB[1][b]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa, sb), sh);
}
a += 4;
b += 4;
}
int32x2_t sumI1 = vpadd_s32(vget_high_s32(sumI), vget_low_s32(sumI));
int32x2_t sumI2 = vpadd_s32(sumI1, sumI1);
iAcc = vget_lane_s32(sumI2, 0);
int32x2_t sumQ1 = vpadd_s32(vget_high_s32(sumQ), vget_low_s32(sumQ));
int32x2_t sumQ2 = vpadd_s32(sumQ1, sumQ1);
qAcc = vget_lane_s32(sumQ2, 0);
#endif
}
};
template<>
class IntHalfbandFilterEO2Intrisics<48>
{
public:
static void work(
int ptrA,
int ptrB,
int32_t evenA[2][48],
int32_t evenB[2][48],
int32_t oddA[2][48],
int32_t oddB[2][48],
int32_t& iAcc, int32_t& qAcc)
{
#if defined(USE_SSE4_1)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
const __m128i* h = (const __m128i*) HBFIRFilterTraits<48>::hbCoeffs;
__m128i sumI = _mm_setzero_si128();
__m128i sumQ = _mm_setzero_si128();
__m128i sa, sb;
if ((ptrB % 2) == 0)
{
// 0
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
h++;
// 1
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+4]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+4]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+4]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+4]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
h++;
// 2
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+8]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+8]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+8]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+8]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
}
else
{
// 0
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
h++;
// 1
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+4]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+4]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+4]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+4]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
h++;
// 2
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+8]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+8]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+8]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+8]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), *h));
}
// horizontal add of four 32 bit partial sums
sumI = _mm_add_epi32(sumI, _mm_srli_si128(sumI, 8));
sumI = _mm_add_epi32(sumI, _mm_srli_si128(sumI, 4));
iAcc = _mm_cvtsi128_si32(sumI);
sumQ = _mm_add_epi32(sumQ, _mm_srli_si128(sumQ, 8));
sumQ = _mm_add_epi32(sumQ, _mm_srli_si128(sumQ, 4));
qAcc = _mm_cvtsi128_si32(sumQ);
#elif defined(USE_NEON)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
int32x4_t sumI = vdupq_n_s32(0);
int32x4_t sumQ = vdupq_n_s32(0);
int32x4x3_t sh = vld3q_s32((int32_t const *) &HBFIRFilterTraits<48>::hbCoeffs[0]);
int32x4x3_t sa, sb;
if ((ptrB % 2) == 0)
{
sa = vld3q_s32((int32_t const *) &(evenA[0][a]));
sb = vld3q_s32((int32_t const *) &(evenB[0][b]));
sumI = vmlaq_s32(sumI, vaddq_s32(sa.val[0], sb.val[0]), sh.val[0]);
sumI = vmlaq_s32(sumI, vaddq_s32(sa.val[1], sb.val[1]), sh.val[1]);
sumI = vmlaq_s32(sumI, vaddq_s32(sa.val[2], sb.val[2]), sh.val[2]);
sa = vld3q_s32((int32_t const *) &(evenA[1][a]));
sb = vld3q_s32((int32_t const *) &(evenB[1][b]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa.val[0], sb.val[0]), sh.val[0]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa.val[1], sb.val[1]), sh.val[1]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa.val[2], sb.val[2]), sh.val[2]);
}
else
{
sa = vld3q_s32((int32_t const *) &(oddA[0][a]));
sb = vld3q_s32((int32_t const *) &(oddB[0][b]));
sumI = vmlaq_s32(sumI, vaddq_s32(sa.val[0], sb.val[0]), sh.val[0]);
sumI = vmlaq_s32(sumI, vaddq_s32(sa.val[1], sb.val[1]), sh.val[1]);
sumI = vmlaq_s32(sumI, vaddq_s32(sa.val[2], sb.val[2]), sh.val[2]);
sa = vld3q_s32((int32_t const *) &(oddA[1][a]));
sb = vld3q_s32((int32_t const *) &(oddB[1][b]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa.val[0], sb.val[0]), sh.val[0]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa.val[1], sb.val[1]), sh.val[1]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(sa.val[2], sb.val[2]), sh.val[2]);
}
int32x2_t sumI1 = vpadd_s32(vget_high_s32(sumI), vget_low_s32(sumI));
int32x2_t sumI2 = vpadd_s32(sumI1, sumI1);
iAcc = vget_lane_s32(sumI2, 0);
int32x2_t sumQ1 = vpadd_s32(vget_high_s32(sumQ), vget_low_s32(sumQ));
int32x2_t sumQ2 = vpadd_s32(sumQ1, sumQ1);
qAcc = vget_lane_s32(sumQ2, 0);
#endif
}
};
template<>
class IntHalfbandFilterEO2Intrisics<96>
{
public:
static void work(
int ptrA,
int ptrB,
int32_t evenA[2][96],
int32_t evenB[2][96],
int32_t oddA[2][96],
int32_t oddB[2][96],
int32_t& iAcc, int32_t& qAcc)
{
#if defined(USE_AVX2)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
const __m256i* h = (const __m256i*) HBFIRFilterTraits<96>::hbCoeffs;
__m256i sumI = _mm256_setzero_si256();
__m256i sumQ = _mm256_setzero_si256();
__m256i sa, sb;
if ((ptrB % 2) == 0)
{
// I
sa = _mm256_loadu_si256((__m256i*) &(evenA[0][a]));
sb = _mm256_loadu_si256((__m256i*) &(evenB[0][b]));
sumI = _mm256_add_epi32(sumI, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[0]));
sa = _mm256_loadu_si256((__m256i*) &(evenA[0][a+8]));
sb = _mm256_loadu_si256((__m256i*) &(evenB[0][b+8]));
sumI = _mm256_add_epi32(sumI, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[1]));
sa = _mm256_loadu_si256((__m256i*) &(evenA[0][a+16]));
sb = _mm256_loadu_si256((__m256i*) &(evenB[0][b+16]));
sumI = _mm256_add_epi32(sumI, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[2]));
// Q
sa = _mm256_loadu_si256((__m256i*) &(evenA[1][a]));
sb = _mm256_loadu_si256((__m256i*) &(evenB[1][b]));
sumQ = _mm256_add_epi32(sumQ, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[0]));
sa = _mm256_loadu_si256((__m256i*) &(evenA[1][a+8]));
sb = _mm256_loadu_si256((__m256i*) &(evenB[1][b+8]));
sumQ = _mm256_add_epi32(sumQ, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[1]));
sa = _mm256_loadu_si256((__m256i*) &(evenA[1][a+16]));
sb = _mm256_loadu_si256((__m256i*) &(evenB[1][b+16]));
sumQ = _mm256_add_epi32(sumQ, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[2]));
}
else
{
// I
sa = _mm256_loadu_si256((__m256i*) &(oddA[0][a]));
sb = _mm256_loadu_si256((__m256i*) &(oddB[0][b]));
sumI = _mm256_add_epi32(sumI, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[0]));
sa = _mm256_loadu_si256((__m256i*) &(oddA[0][a+8]));
sb = _mm256_loadu_si256((__m256i*) &(oddB[0][b+8]));
sumI = _mm256_add_epi32(sumI, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[1]));
sa = _mm256_loadu_si256((__m256i*) &(oddA[0][a+16]));
sb = _mm256_loadu_si256((__m256i*) &(oddB[0][b+16]));
sumI = _mm256_add_epi32(sumI, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[2]));
// Q
sa = _mm256_loadu_si256((__m256i*) &(oddA[1][a]));
sb = _mm256_loadu_si256((__m256i*) &(oddB[1][b]));
sumQ = _mm256_add_epi32(sumQ, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[0]));
sa = _mm256_loadu_si256((__m256i*) &(oddA[1][a+8]));
sb = _mm256_loadu_si256((__m256i*) &(oddB[1][b+8]));
sumQ = _mm256_add_epi32(sumQ, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[1]));
sa = _mm256_loadu_si256((__m256i*) &(oddA[1][a+16]));
sb = _mm256_loadu_si256((__m256i*) &(oddB[1][b+16]));
sumQ = _mm256_add_epi32(sumQ, _mm256_mullo_epi32(_mm256_add_epi32(sa, sb), h[2]));
}
// horizontal add
__m128i vloI = _mm256_castsi256_si128(sumI);
vloI = _mm_add_epi32(vloI, _mm_srli_si128(vloI, 8));
vloI = _mm_add_epi32(vloI, _mm_srli_si128(vloI, 4));
iAcc = _mm_cvtsi128_si32(vloI);
__m128i vhiI = _mm256_extracti128_si256(sumI, 1);
vhiI = _mm_add_epi32(vhiI, _mm_srli_si128(vhiI, 8));
vhiI = _mm_add_epi32(vhiI, _mm_srli_si128(vhiI, 4));
iAcc += _mm_cvtsi128_si32(vhiI);
__m128i vloQ = _mm256_castsi256_si128(sumQ);
vloQ = _mm_add_epi32(vloQ, _mm_srli_si128(vloQ, 8));
vloQ = _mm_add_epi32(vloQ, _mm_srli_si128(vloQ, 4));
qAcc = _mm_cvtsi128_si32(vloQ);
__m128i vhiQ = _mm256_extracti128_si256(sumQ, 1);
vhiQ = _mm_add_epi32(vhiQ, _mm_srli_si128(vhiQ, 8));
vhiQ = _mm_add_epi32(vhiQ, _mm_srli_si128(vhiQ, 4));
qAcc += _mm_cvtsi128_si32(vhiQ);
#elif defined(USE_SSE4_1)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
const __m128i* h = (const __m128i*) HBFIRFilterTraits<96>::hbCoeffs;
__m128i sumI = _mm_setzero_si128();
__m128i sumQ = _mm_setzero_si128();
__m128i sa, sb;
if ((ptrB % 2) == 0)
{
// I
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[0]));
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+4]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+4]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[1]));
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+8]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+8]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[2]));
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+12]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+12]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[3]));
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+16]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+16]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[4]));
sa = _mm_loadu_si128((__m128i*) &(evenA[0][a+20]));
sb = _mm_loadu_si128((__m128i*) &(evenB[0][b+20]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[5]));
// Q
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[0]));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+4]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+4]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[1]));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+8]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+8]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[2]));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+12]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+12]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[3]));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+16]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+16]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[4]));
sa = _mm_loadu_si128((__m128i*) &(evenA[1][a+20]));
sb = _mm_loadu_si128((__m128i*) &(evenB[1][b+20]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[5]));
}
else
{
// I
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[0]));
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+4]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+4]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[1]));
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+8]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+8]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[2]));
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+12]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+12]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[3]));
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+16]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+16]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[4]));
sa = _mm_loadu_si128((__m128i*) &(oddA[0][a+20]));
sb = _mm_loadu_si128((__m128i*) &(oddB[0][b+20]));
sumI = _mm_add_epi32(sumI, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[5]));
// Q
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[0]));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+4]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+4]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[1]));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+8]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+8]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[2]));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+12]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+12]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[3]));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+16]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+16]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[4]));
sa = _mm_loadu_si128((__m128i*) &(oddA[1][a+20]));
sb = _mm_loadu_si128((__m128i*) &(oddB[1][b+20]));
sumQ = _mm_add_epi32(sumQ, _mm_mullo_epi32(_mm_add_epi32(sa, sb), h[5]));
}
// horizontal add of four 32 bit partial sums
sumI = _mm_add_epi32(sumI, _mm_srli_si128(sumI, 8));
sumI = _mm_add_epi32(sumI, _mm_srli_si128(sumI, 4));
iAcc = _mm_cvtsi128_si32(sumI);
sumQ = _mm_add_epi32(sumQ, _mm_srli_si128(sumQ, 8));
sumQ = _mm_add_epi32(sumQ, _mm_srli_si128(sumQ, 4));
qAcc = _mm_cvtsi128_si32(sumQ);
#elif defined(USE_NEON)
int a = ptrA/2; // tip pointer
int b = ptrB/2 + 1; // tail pointer
int32x4_t sumI = vdupq_n_s32(0);
int32x4_t sumQ = vdupq_n_s32(0);
int32x4x3_t sh = vld3q_s32((int32_t const *) &HBFIRFilterTraits<96>::hbCoeffs[0]);
int32x4x4_t s4a, s4b, s4h;
int32x4x2_t s2a, s2b, s2h;
if ((ptrB % 2) == 0)
{
s4h = vld4q_s32((int32_t const *) &HBFIRFilterTraits<96>::hbCoeffs[0]);
s4a = vld4q_s32((int32_t const *) &(evenA[0][a]));
s4b = vld4q_s32((int32_t const *) &(evenB[0][b]));
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[0], s4b.val[0]), s4h.val[0]);
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[1], s4b.val[1]), s4h.val[1]);
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[2], s4b.val[2]), s4h.val[2]);
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[3], s4b.val[3]), s4h.val[3]);
s4a = vld4q_s32((int32_t const *) &(evenA[1][a]));
s4b = vld4q_s32((int32_t const *) &(evenB[1][b]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[0], s4b.val[0]), s4h.val[0]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[1], s4b.val[1]), s4h.val[1]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[2], s4b.val[2]), s4h.val[2]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[3], s4b.val[3]), s4h.val[3]);
s2h = vld4q_s32((int32_t const *) &HBFIRFilterTraits<96>::hbCoeffs[16]);
s2a = vld2q_s32((int32_t const *) &(evenA[0][a+16]));
s2b = vld2q_s32((int32_t const *) &(evenB[0][b+16]));
sumI = vmlaq_s32(sumI, vaddq_s32(s2a.val[0], s2b.val[0]), s2h.val[0]);
sumI = vmlaq_s32(sumI, vaddq_s32(s2a.val[1], s2b.val[1]), s2h.val[1]);
s2a = vld2q_s32((int32_t const *) &(evenA[1][a+16]));
s2b = vld2q_s32((int32_t const *) &(evenB[1][b+16]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(s2a.val[0], s2b.val[0]), s2h.val[0]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s2a.val[1], s2b.val[1]), s2h.val[1]);
}
else
{
s4h = vld4q_s32((int32_t const *) &HBFIRFilterTraits<96>::hbCoeffs[0]);
s4a = vld4q_s32((int32_t const *) &(oddA[0][a]));
s4b = vld4q_s32((int32_t const *) &(oddB[0][b]));
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[0], s4b.val[0]), s4h.val[0]);
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[1], s4b.val[1]), s4h.val[1]);
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[2], s4b.val[2]), s4h.val[2]);
sumI = vmlaq_s32(sumI, vaddq_s32(s4a.val[3], s4b.val[3]), s4h.val[3]);
s4a = vld4q_s32((int32_t const *) &(oddA[1][a]));
s4b = vld4q_s32((int32_t const *) &(oddB[1][b]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[0], s4b.val[0]), s4h.val[0]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[1], s4b.val[1]), s4h.val[1]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[2], s4b.val[2]), s4h.val[2]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s4a.val[3], s4b.val[3]), s4h.val[3]);
s2h = vld4q_s32((int32_t const *) &HBFIRFilterTraits<96>::hbCoeffs[16]);
s2a = vld2q_s32((int32_t const *) &(oddA[0][a+16]));
s2b = vld2q_s32((int32_t const *) &(oddB[0][b+16]));
sumI = vmlaq_s32(sumI, vaddq_s32(s2a.val[0], s2b.val[0]), s2h.val[0]);
sumI = vmlaq_s32(sumI, vaddq_s32(s2a.val[1], s2b.val[1]), s2h.val[1]);
s2a = vld2q_s32((int32_t const *) &(oddA[1][a+16]));
s2b = vld2q_s32((int32_t const *) &(oddB[1][b+16]));
sumQ = vmlaq_s32(sumQ, vaddq_s32(s2a.val[0], s2b.val[0]), s2h.val[0]);
sumQ = vmlaq_s32(sumQ, vaddq_s32(s2a.val[1], s2b.val[1]), s2h.val[1]);
}
int32x2_t sumI1 = vpadd_s32(vget_high_s32(sumI), vget_low_s32(sumI));
int32x2_t sumI2 = vpadd_s32(sumI1, sumI1);
iAcc = vget_lane_s32(sumI2, 0);
int32x2_t sumQ1 = vpadd_s32(vget_high_s32(sumQ), vget_low_s32(sumQ));
int32x2_t sumQ2 = vpadd_s32(sumQ1, sumQ1);
qAcc = vget_lane_s32(sumQ2, 0);
#endif
}
};
#endif /* INCLUDE_INTHALFBANDFILTEREO2I_H_ */
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