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volk_8ic_s32f_deinterleave_32f_x2.h
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/* -*- c++ -*- */
/*
* Copyright 2012, 2014 Free Software Foundation, Inc.
*
* This file is part of VOLK
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#ifndef INCLUDED_volk_8ic_s32f_deinterleave_32f_x2_a_H
#define INCLUDED_volk_8ic_s32f_deinterleave_32f_x2_a_H
#include <inttypes.h>
#include <stdio.h>
#include <volk/volk_common.h>
#ifdef LV_HAVE_SSE4_1
#include <smmintrin.h>
static inline void
volk_8ic_s32f_deinterleave_32f_x2_a_sse4_1(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
__m128 iFloatValue, qFloatValue;
const float iScalar = 1.0 / scalar;
__m128 invScalar = _mm_set_ps1(iScalar);
__m128i complexVal, iIntVal, qIntVal, iComplexVal, qComplexVal;
int8_t* complexVectorPtr = (int8_t*)complexVector;
__m128i iMoveMask = _mm_set_epi8(
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 14, 12, 10, 8, 6, 4, 2, 0);
__m128i qMoveMask = _mm_set_epi8(
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 15, 13, 11, 9, 7, 5, 3, 1);
for (; number < eighthPoints; number++) {
complexVal = _mm_load_si128((__m128i*)complexVectorPtr);
complexVectorPtr += 16;
iComplexVal = _mm_shuffle_epi8(complexVal, iMoveMask);
qComplexVal = _mm_shuffle_epi8(complexVal, qMoveMask);
iIntVal = _mm_cvtepi8_epi32(iComplexVal);
iFloatValue = _mm_cvtepi32_ps(iIntVal);
iFloatValue = _mm_mul_ps(iFloatValue, invScalar);
_mm_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 4;
iComplexVal = _mm_srli_si128(iComplexVal, 4);
iIntVal = _mm_cvtepi8_epi32(iComplexVal);
iFloatValue = _mm_cvtepi32_ps(iIntVal);
iFloatValue = _mm_mul_ps(iFloatValue, invScalar);
_mm_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 4;
qIntVal = _mm_cvtepi8_epi32(qComplexVal);
qFloatValue = _mm_cvtepi32_ps(qIntVal);
qFloatValue = _mm_mul_ps(qFloatValue, invScalar);
_mm_store_ps(qBufferPtr, qFloatValue);
qBufferPtr += 4;
qComplexVal = _mm_srli_si128(qComplexVal, 4);
qIntVal = _mm_cvtepi8_epi32(qComplexVal);
qFloatValue = _mm_cvtepi32_ps(qIntVal);
qFloatValue = _mm_mul_ps(qFloatValue, invScalar);
_mm_store_ps(qBufferPtr, qFloatValue);
qBufferPtr += 4;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
}
}
#endif /* LV_HAVE_SSE4_1 */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void volk_8ic_s32f_deinterleave_32f_x2_a_sse(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int number = 0;
const unsigned int quarterPoints = num_points / 4;
__m128 cplxValue1, cplxValue2, iValue, qValue;
__m128 invScalar = _mm_set_ps1(1.0 / scalar);
int8_t* complexVectorPtr = (int8_t*)complexVector;
__VOLK_ATTR_ALIGNED(16) float floatBuffer[8];
for (; number < quarterPoints; number++) {
floatBuffer[0] = (float)(complexVectorPtr[0]);
floatBuffer[1] = (float)(complexVectorPtr[1]);
floatBuffer[2] = (float)(complexVectorPtr[2]);
floatBuffer[3] = (float)(complexVectorPtr[3]);
floatBuffer[4] = (float)(complexVectorPtr[4]);
floatBuffer[5] = (float)(complexVectorPtr[5]);
floatBuffer[6] = (float)(complexVectorPtr[6]);
floatBuffer[7] = (float)(complexVectorPtr[7]);
cplxValue1 = _mm_load_ps(&floatBuffer[0]);
cplxValue2 = _mm_load_ps(&floatBuffer[4]);
complexVectorPtr += 8;
cplxValue1 = _mm_mul_ps(cplxValue1, invScalar);
cplxValue2 = _mm_mul_ps(cplxValue2, invScalar);
// Arrange in i1i2i3i4 format
iValue = _mm_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(2, 0, 2, 0));
qValue = _mm_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(3, 1, 3, 1));
_mm_store_ps(iBufferPtr, iValue);
_mm_store_ps(qBufferPtr, qValue);
iBufferPtr += 4;
qBufferPtr += 4;
}
number = quarterPoints * 4;
complexVectorPtr = (int8_t*)&complexVector[number];
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_8ic_s32f_deinterleave_32f_x2_a_avx2(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
__m256 iFloatValue, qFloatValue;
const float iScalar = 1.0 / scalar;
__m256 invScalar = _mm256_set1_ps(iScalar);
__m256i complexVal, iIntVal, qIntVal, iComplexVal, qComplexVal;
int8_t* complexVectorPtr = (int8_t*)complexVector;
__m256i iMoveMask = _mm256_set_epi8(0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
14,
12,
10,
8,
6,
4,
2,
0,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
14,
12,
10,
8,
6,
4,
2,
0);
__m256i qMoveMask = _mm256_set_epi8(0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
15,
13,
11,
9,
7,
5,
3,
1,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
15,
13,
11,
9,
7,
5,
3,
1);
for (; number < sixteenthPoints; number++) {
complexVal = _mm256_load_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
iComplexVal = _mm256_shuffle_epi8(complexVal, iMoveMask);
qComplexVal = _mm256_shuffle_epi8(complexVal, qMoveMask);
iIntVal = _mm256_cvtepi8_epi32(_mm256_castsi256_si128(iComplexVal));
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
iComplexVal = _mm256_permute4x64_epi64(iComplexVal, 0b11000110);
iIntVal = _mm256_cvtepi8_epi32(_mm256_castsi256_si128(iComplexVal));
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
qIntVal = _mm256_cvtepi8_epi32(_mm256_castsi256_si128(qComplexVal));
qFloatValue = _mm256_cvtepi32_ps(qIntVal);
qFloatValue = _mm256_mul_ps(qFloatValue, invScalar);
_mm256_store_ps(qBufferPtr, qFloatValue);
qBufferPtr += 8;
qComplexVal = _mm256_permute4x64_epi64(qComplexVal, 0b11000110);
qIntVal = _mm256_cvtepi8_epi32(_mm256_castsi256_si128(qComplexVal));
qFloatValue = _mm256_cvtepi32_ps(qIntVal);
qFloatValue = _mm256_mul_ps(qFloatValue, invScalar);
_mm256_store_ps(qBufferPtr, qFloatValue);
qBufferPtr += 8;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_GENERIC
static inline void
volk_8ic_s32f_deinterleave_32f_x2_generic(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
const int8_t* complexVectorPtr = (const int8_t*)complexVector;
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int number;
const float invScalar = 1.0 / scalar;
for (number = 0; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * invScalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) * invScalar;
}
}
#endif /* LV_HAVE_GENERIC */
#endif /* INCLUDED_volk_8ic_s32f_deinterleave_32f_x2_a_H */
#ifndef INCLUDED_volk_8ic_s32f_deinterleave_32f_x2_u_H
#define INCLUDED_volk_8ic_s32f_deinterleave_32f_x2_u_H
#include <inttypes.h>
#include <stdio.h>
#include <volk/volk_common.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_8ic_s32f_deinterleave_32f_x2_u_avx2(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
__m256 iFloatValue, qFloatValue;
const float iScalar = 1.0 / scalar;
__m256 invScalar = _mm256_set1_ps(iScalar);
__m256i complexVal, iIntVal, qIntVal;
__m128i iComplexVal, qComplexVal;
int8_t* complexVectorPtr = (int8_t*)complexVector;
__m256i MoveMask = _mm256_set_epi8(15,
13,
11,
9,
7,
5,
3,
1,
14,
12,
10,
8,
6,
4,
2,
0,
15,
13,
11,
9,
7,
5,
3,
1,
14,
12,
10,
8,
6,
4,
2,
0);
for (; number < sixteenthPoints; number++) {
complexVal = _mm256_loadu_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
complexVal = _mm256_shuffle_epi8(complexVal, MoveMask);
complexVal = _mm256_permute4x64_epi64(complexVal, 0xd8);
iComplexVal = _mm256_extractf128_si256(complexVal, 0);
qComplexVal = _mm256_extractf128_si256(complexVal, 1);
iIntVal = _mm256_cvtepi8_epi32(iComplexVal);
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_storeu_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
qIntVal = _mm256_cvtepi8_epi32(qComplexVal);
qFloatValue = _mm256_cvtepi32_ps(qIntVal);
qFloatValue = _mm256_mul_ps(qFloatValue, invScalar);
_mm256_storeu_ps(qBufferPtr, qFloatValue);
qBufferPtr += 8;
complexVal = _mm256_srli_si256(complexVal, 8);
iComplexVal = _mm256_extractf128_si256(complexVal, 0);
qComplexVal = _mm256_extractf128_si256(complexVal, 1);
iIntVal = _mm256_cvtepi8_epi32(iComplexVal);
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_storeu_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
qIntVal = _mm256_cvtepi8_epi32(qComplexVal);
qFloatValue = _mm256_cvtepi32_ps(qIntVal);
qFloatValue = _mm256_mul_ps(qFloatValue, invScalar);
_mm256_storeu_ps(qBufferPtr, qFloatValue);
qBufferPtr += 8;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_8ic_s32f_deinterleave_32f_x2_neon(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighth_points = num_points / 8;
const int8_t* complexVectorPtr = (const int8_t*)complexVector;
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
const float invScalar = 1.0f / scalar;
float32x4_t vInvScalar = vdupq_n_f32(invScalar);
for (; number < eighth_points; number++) {
int8x8x2_t input = vld2_s8(complexVectorPtr);
complexVectorPtr += 16;
int16x8_t iShort = vmovl_s8(input.val[0]);
int16x8_t qShort = vmovl_s8(input.val[1]);
int32x4_t iInt0 = vmovl_s16(vget_low_s16(iShort));
int32x4_t iInt1 = vmovl_s16(vget_high_s16(iShort));
int32x4_t qInt0 = vmovl_s16(vget_low_s16(qShort));
int32x4_t qInt1 = vmovl_s16(vget_high_s16(qShort));
float32x4_t iFloat0 = vcvtq_f32_s32(iInt0);
float32x4_t iFloat1 = vcvtq_f32_s32(iInt1);
float32x4_t qFloat0 = vcvtq_f32_s32(qInt0);
float32x4_t qFloat1 = vcvtq_f32_s32(qInt1);
iFloat0 = vmulq_f32(iFloat0, vInvScalar);
iFloat1 = vmulq_f32(iFloat1, vInvScalar);
qFloat0 = vmulq_f32(qFloat0, vInvScalar);
qFloat1 = vmulq_f32(qFloat1, vInvScalar);
vst1q_f32(iBufferPtr, iFloat0);
vst1q_f32(iBufferPtr + 4, iFloat1);
vst1q_f32(qBufferPtr, qFloat0);
vst1q_f32(qBufferPtr + 4, qFloat1);
iBufferPtr += 8;
qBufferPtr += 8;
}
number = eighth_points * 8;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * invScalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) * invScalar;
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_8ic_s32f_deinterleave_32f_x2_rvv(float* iBuffer,
float* qBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
const uint16_t* in = (const uint16_t*)complexVector;
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, in += vl, iBuffer += vl, qBuffer += vl) {
vl = __riscv_vsetvl_e16m4(n);
vuint16m4_t vc = __riscv_vle16_v_u16m4(in, vl);
vint8m2_t vr = __riscv_vreinterpret_i8m2(__riscv_vnsrl(vc, 0, vl));
vint8m2_t vi = __riscv_vreinterpret_i8m2(__riscv_vnsrl(vc, 8, vl));
vfloat32m8_t vrf = __riscv_vfwcvt_f(__riscv_vsext_vf2(vr, vl), vl);
vfloat32m8_t vif = __riscv_vfwcvt_f(__riscv_vsext_vf2(vi, vl), vl);
__riscv_vse32(iBuffer, __riscv_vfmul(vrf, 1.0f / scalar, vl), vl);
__riscv_vse32(qBuffer, __riscv_vfmul(vif, 1.0f / scalar, vl), vl);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_8ic_s32f_deinterleave_32f_x2_u_H */