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volk_16ic_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_16ic_s32f_deinterleave_32f_x2_a_H
#define INCLUDED_volk_16ic_s32f_deinterleave_32f_x2_a_H
#include <inttypes.h>
#include <stdio.h>
#include <volk/volk_common.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void
volk_16ic_s32f_deinterleave_32f_x2_a_avx2(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
uint64_t number = 0;
const uint64_t eighthPoints = num_points / 8;
__m256 cplxValue1, cplxValue2, iValue, qValue;
__m256i cplxValueA, cplxValueB;
__m128i cplxValue128;
__m256 invScalar = _mm256_set1_ps(1.0 / scalar);
int16_t* complexVectorPtr = (int16_t*)complexVector;
__m256i idx = _mm256_set_epi32(7, 6, 3, 2, 5, 4, 1, 0);
for (; number < eighthPoints; number++) {
cplxValueA = _mm256_load_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 16;
// cvt
cplxValue128 = _mm256_extracti128_si256(cplxValueA, 0);
cplxValueB = _mm256_cvtepi16_epi32(cplxValue128);
cplxValue1 = _mm256_cvtepi32_ps(cplxValueB);
cplxValue128 = _mm256_extracti128_si256(cplxValueA, 1);
cplxValueB = _mm256_cvtepi16_epi32(cplxValue128);
cplxValue2 = _mm256_cvtepi32_ps(cplxValueB);
cplxValue1 = _mm256_mul_ps(cplxValue1, invScalar);
cplxValue2 = _mm256_mul_ps(cplxValue2, invScalar);
// Arrange in i1i2i3i4 format
iValue = _mm256_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(2, 0, 2, 0));
iValue = _mm256_permutevar8x32_ps(iValue, idx);
// Arrange in q1q2q3q4 format
qValue = _mm256_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(3, 1, 3, 1));
qValue = _mm256_permutevar8x32_ps(qValue, idx);
_mm256_store_ps(iBufferPtr, iValue);
_mm256_store_ps(qBufferPtr, qValue);
iBufferPtr += 8;
qBufferPtr += 8;
}
number = eighthPoints * 8;
complexVectorPtr = (int16_t*)&complexVector[number];
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void
volk_16ic_s32f_deinterleave_32f_x2_a_sse(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
uint64_t number = 0;
const uint64_t quarterPoints = num_points / 4;
__m128 cplxValue1, cplxValue2, iValue, qValue;
__m128 invScalar = _mm_set_ps1(1.0 / scalar);
int16_t* complexVectorPtr = (int16_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));
// Arrange in q1q2q3q4 format
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 = (int16_t*)&complexVector[number];
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_GENERIC
static inline void
volk_16ic_s32f_deinterleave_32f_x2_generic(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
const int16_t* complexVectorPtr = (const int16_t*)complexVector;
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int number;
for (number = 0; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_GENERIC */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_16ic_s32f_deinterleave_32f_x2_neon(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
const int16_t* complexVectorPtr = (const int16_t*)complexVector;
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
unsigned int eighth_points = num_points / 4;
unsigned int number;
float iScalar = 1.f / scalar;
float32x4_t invScalar;
invScalar = vld1q_dup_f32(&iScalar);
int16x4x2_t complexInput_s16;
int32x4x2_t complexInput_s32;
float32x4x2_t complexFloat;
for (number = 0; number < eighth_points; number++) {
complexInput_s16 = vld2_s16(complexVectorPtr);
complexInput_s32.val[0] = vmovl_s16(complexInput_s16.val[0]);
complexInput_s32.val[1] = vmovl_s16(complexInput_s16.val[1]);
complexFloat.val[0] = vcvtq_f32_s32(complexInput_s32.val[0]);
complexFloat.val[1] = vcvtq_f32_s32(complexInput_s32.val[1]);
complexFloat.val[0] = vmulq_f32(complexFloat.val[0], invScalar);
complexFloat.val[1] = vmulq_f32(complexFloat.val[1], invScalar);
vst1q_f32(iBufferPtr, complexFloat.val[0]);
vst1q_f32(qBufferPtr, complexFloat.val[1]);
complexVectorPtr += 8;
iBufferPtr += 4;
qBufferPtr += 4;
}
for (number = eighth_points * 4; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_GENERIC */
#ifdef LV_HAVE_NEONV8
#include <arm_neon.h>
static inline void
volk_16ic_s32f_deinterleave_32f_x2_neonv8(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
const int16_t* complexVectorPtr = (const int16_t*)complexVector;
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
const unsigned int eighthPoints = num_points / 8;
const float iScalar = 1.f / scalar;
const float32x4_t invScalar = vdupq_n_f32(iScalar);
for (unsigned int number = 0; number < eighthPoints; number++) {
int16x8x2_t cplx0 = vld2q_s16(complexVectorPtr);
__VOLK_PREFETCH(complexVectorPtr + 32);
/* Convert lower 4 of each to float */
int32x4_t i_lo = vmovl_s16(vget_low_s16(cplx0.val[0]));
int32x4_t q_lo = vmovl_s16(vget_low_s16(cplx0.val[1]));
int32x4_t i_hi = vmovl_s16(vget_high_s16(cplx0.val[0]));
int32x4_t q_hi = vmovl_s16(vget_high_s16(cplx0.val[1]));
float32x4_t iFloat_lo = vmulq_f32(vcvtq_f32_s32(i_lo), invScalar);
float32x4_t qFloat_lo = vmulq_f32(vcvtq_f32_s32(q_lo), invScalar);
float32x4_t iFloat_hi = vmulq_f32(vcvtq_f32_s32(i_hi), invScalar);
float32x4_t qFloat_hi = vmulq_f32(vcvtq_f32_s32(q_hi), invScalar);
vst1q_f32(iBufferPtr, iFloat_lo);
vst1q_f32(iBufferPtr + 4, iFloat_hi);
vst1q_f32(qBufferPtr, qFloat_lo);
vst1q_f32(qBufferPtr + 4, qFloat_hi);
complexVectorPtr += 16;
iBufferPtr += 8;
qBufferPtr += 8;
}
for (unsigned int number = eighthPoints * 8; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_NEONV8 */
#ifdef LV_HAVE_ORC
extern void volk_16ic_s32f_deinterleave_32f_x2_a_orc_impl(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
int num_points);
static inline void
volk_16ic_s32f_deinterleave_32f_x2_u_orc(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
volk_16ic_s32f_deinterleave_32f_x2_a_orc_impl(
iBuffer, qBuffer, complexVector, scalar, num_points);
}
#endif /* LV_HAVE_ORC */
#endif /* INCLUDED_volk_16ic_s32f_deinterleave_32f_x2_a_H */
#ifndef INCLUDED_volk_16ic_s32f_deinterleave_32f_x2_u_H
#define INCLUDED_volk_16ic_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_16ic_s32f_deinterleave_32f_x2_u_avx2(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
float* qBufferPtr = qBuffer;
uint64_t number = 0;
const uint64_t eighthPoints = num_points / 8;
__m256 cplxValue1, cplxValue2, iValue, qValue;
__m256i cplxValueA, cplxValueB;
__m128i cplxValue128;
__m256 invScalar = _mm256_set1_ps(1.0 / scalar);
int16_t* complexVectorPtr = (int16_t*)complexVector;
__m256i idx = _mm256_set_epi32(7, 6, 3, 2, 5, 4, 1, 0);
for (; number < eighthPoints; number++) {
cplxValueA = _mm256_loadu_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 16;
// cvt
cplxValue128 = _mm256_extracti128_si256(cplxValueA, 0);
cplxValueB = _mm256_cvtepi16_epi32(cplxValue128);
cplxValue1 = _mm256_cvtepi32_ps(cplxValueB);
cplxValue128 = _mm256_extracti128_si256(cplxValueA, 1);
cplxValueB = _mm256_cvtepi16_epi32(cplxValue128);
cplxValue2 = _mm256_cvtepi32_ps(cplxValueB);
cplxValue1 = _mm256_mul_ps(cplxValue1, invScalar);
cplxValue2 = _mm256_mul_ps(cplxValue2, invScalar);
// Arrange in i1i2i3i4 format
iValue = _mm256_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(2, 0, 2, 0));
iValue = _mm256_permutevar8x32_ps(iValue, idx);
// Arrange in q1q2q3q4 format
qValue = _mm256_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(3, 1, 3, 1));
qValue = _mm256_permutevar8x32_ps(qValue, idx);
_mm256_storeu_ps(iBufferPtr, iValue);
_mm256_storeu_ps(qBufferPtr, qValue);
iBufferPtr += 8;
qBufferPtr += 8;
}
number = eighthPoints * 8;
complexVectorPtr = (int16_t*)&complexVector[number];
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
*qBufferPtr++ = (float)(*complexVectorPtr++) / scalar;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_16ic_s32f_deinterleave_32f_x2_rvv(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, complexVector += vl, iBuffer += vl, qBuffer += vl) {
vl = __riscv_vsetvl_e16m4(n);
vint32m8_t vc = __riscv_vle32_v_i32m8((const int32_t*)complexVector, vl);
vint16m4_t vr = __riscv_vnsra(vc, 0, vl);
vint16m4_t vi = __riscv_vnsra(vc, 16, vl);
vfloat32m8_t vrf = __riscv_vfwcvt_f(vr, vl);
vfloat32m8_t vif = __riscv_vfwcvt_f(vi, 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*/
#ifdef LV_HAVE_RVVSEG
#include <riscv_vector.h>
static inline void
volk_16ic_s32f_deinterleave_32f_x2_rvvseg(float* iBuffer,
float* qBuffer,
const lv_16sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, complexVector += vl, iBuffer += vl, qBuffer += vl) {
vl = __riscv_vsetvl_e16m4(n);
vint16m4x2_t vc = __riscv_vlseg2e16_v_i16m4x2((const int16_t*)complexVector, vl);
vint16m4_t vr = __riscv_vget_i16m4(vc, 0);
vint16m4_t vi = __riscv_vget_i16m4(vc, 1);
vfloat32m8_t vrf = __riscv_vfwcvt_f(vr, vl);
vfloat32m8_t vif = __riscv_vfwcvt_f(vi, 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_RVVSEG*/
#endif /* INCLUDED_volk_16ic_s32f_deinterleave_32f_x2_u_H */