Loading...
Searching...
No Matches
volk_32f_s32f_convert_16i.h
Go to the documentation of this file.
/* -*- 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_32f_s32f_convert_16i_u_H
#define INCLUDED_volk_32f_s32f_convert_16i_u_H
#include <inttypes.h>
#include <limits.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_32f_s32f_convert_16i_u_avx2(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m256 vScalar = _mm256_set1_ps(scalar);
__m256 inputVal1, inputVal2;
__m256i intInputVal1, intInputVal2;
__m256 ret1, ret2;
__m256 vmin_val = _mm256_set1_ps(min_val);
__m256 vmax_val = _mm256_set1_ps(max_val);
for (; number < sixteenthPoints; number++) {
inputVal1 = _mm256_loadu_ps(inputVectorPtr);
inputVectorPtr += 8;
inputVal2 = _mm256_loadu_ps(inputVectorPtr);
inputVectorPtr += 8;
// Scale and clip
ret1 = _mm256_max_ps(_mm256_min_ps(_mm256_mul_ps(inputVal1, vScalar), vmax_val),
vmin_val);
ret2 = _mm256_max_ps(_mm256_min_ps(_mm256_mul_ps(inputVal2, vScalar), vmax_val),
vmin_val);
intInputVal1 = _mm256_cvtps_epi32(ret1);
intInputVal2 = _mm256_cvtps_epi32(ret2);
intInputVal1 = _mm256_packs_epi32(intInputVal1, intInputVal2);
intInputVal1 = _mm256_permute4x64_epi64(intInputVal1, 0b11011000);
_mm256_storeu_si256((__m256i*)outputVectorPtr, intInputVal1);
outputVectorPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_AVX512F
#include <immintrin.h>
static inline void volk_32f_s32f_convert_16i_u_avx512(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m512 vScalar = _mm512_set1_ps(scalar);
__m512 inputVal;
__m256i intInputVal;
__m512 ret;
__m512 vmin_val = _mm512_set1_ps(min_val);
__m512 vmax_val = _mm512_set1_ps(max_val);
for (; number < sixteenthPoints; number++) {
inputVal = _mm512_loadu_ps(inputVectorPtr);
inputVectorPtr += 16;
// Scale and clip
ret = _mm512_max_ps(_mm512_min_ps(_mm512_mul_ps(inputVal, vScalar), vmax_val),
vmin_val);
// Convert float to int32, then pack to int16 with saturation
intInputVal = _mm512_cvtsepi32_epi16(_mm512_cvtps_epi32(ret));
_mm256_storeu_si256((__m256i*)outputVectorPtr, intInputVal);
outputVectorPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_AVX512F */
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32f_s32f_convert_16i_u_avx(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m256 vScalar = _mm256_set1_ps(scalar);
__m256 inputVal, ret;
__m256i intInputVal;
__m128i intInputVal1, intInputVal2;
__m256 vmin_val = _mm256_set1_ps(min_val);
__m256 vmax_val = _mm256_set1_ps(max_val);
for (; number < eighthPoints; number++) {
inputVal = _mm256_loadu_ps(inputVectorPtr);
inputVectorPtr += 8;
// Scale and clip
ret = _mm256_max_ps(_mm256_min_ps(_mm256_mul_ps(inputVal, vScalar), vmax_val),
vmin_val);
intInputVal = _mm256_cvtps_epi32(ret);
intInputVal1 = _mm256_extractf128_si256(intInputVal, 0);
intInputVal2 = _mm256_extractf128_si256(intInputVal, 1);
intInputVal1 = _mm_packs_epi32(intInputVal1, intInputVal2);
_mm_storeu_si128((__m128i*)outputVectorPtr, intInputVal1);
outputVectorPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_SSE2
#include <emmintrin.h>
static inline void volk_32f_s32f_convert_16i_u_sse2(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m128 vScalar = _mm_set_ps1(scalar);
__m128 inputVal1, inputVal2;
__m128i intInputVal1, intInputVal2;
__m128 ret1, ret2;
__m128 vmin_val = _mm_set_ps1(min_val);
__m128 vmax_val = _mm_set_ps1(max_val);
for (; number < eighthPoints; number++) {
inputVal1 = _mm_loadu_ps(inputVectorPtr);
inputVectorPtr += 4;
inputVal2 = _mm_loadu_ps(inputVectorPtr);
inputVectorPtr += 4;
// Scale and clip
ret1 = _mm_max_ps(_mm_min_ps(_mm_mul_ps(inputVal1, vScalar), vmax_val), vmin_val);
ret2 = _mm_max_ps(_mm_min_ps(_mm_mul_ps(inputVal2, vScalar), vmax_val), vmin_val);
intInputVal1 = _mm_cvtps_epi32(ret1);
intInputVal2 = _mm_cvtps_epi32(ret2);
intInputVal1 = _mm_packs_epi32(intInputVal1, intInputVal2);
_mm_storeu_si128((__m128i*)outputVectorPtr, intInputVal1);
outputVectorPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_SSE2 */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void volk_32f_s32f_convert_16i_u_sse(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int quarterPoints = num_points / 4;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m128 vScalar = _mm_set_ps1(scalar);
__m128 ret;
__m128 vmin_val = _mm_set_ps1(min_val);
__m128 vmax_val = _mm_set_ps1(max_val);
__VOLK_ATTR_ALIGNED(16) float outputFloatBuffer[4];
for (; number < quarterPoints; number++) {
ret = _mm_loadu_ps(inputVectorPtr);
inputVectorPtr += 4;
// Scale and clip
ret = _mm_max_ps(_mm_min_ps(_mm_mul_ps(ret, vScalar), vmax_val), vmin_val);
_mm_store_ps(outputFloatBuffer, ret);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[0]);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[1]);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[2]);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[3]);
}
number = quarterPoints * 4;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_GENERIC
static inline void volk_32f_s32f_convert_16i_generic(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
int16_t* outputVectorPtr = outputVector;
const float* inputVectorPtr = inputVector;
unsigned int number = 0;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
for (number = 0; number < num_points; number++) {
r = *inputVectorPtr++ * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
*outputVectorPtr++ = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_GENERIC */
#endif /* INCLUDED_volk_32f_s32f_convert_16i_u_H */
#ifndef INCLUDED_volk_32f_s32f_convert_16i_a_H
#define INCLUDED_volk_32f_s32f_convert_16i_a_H
#include <inttypes.h>
#include <math.h>
#include <stdio.h>
#include <volk/volk_common.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_32f_s32f_convert_16i_a_avx2(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m256 vScalar = _mm256_set1_ps(scalar);
__m256 inputVal1, inputVal2;
__m256i intInputVal1, intInputVal2;
__m256 ret1, ret2;
__m256 vmin_val = _mm256_set1_ps(min_val);
__m256 vmax_val = _mm256_set1_ps(max_val);
for (; number < sixteenthPoints; number++) {
inputVal1 = _mm256_load_ps(inputVectorPtr);
inputVectorPtr += 8;
inputVal2 = _mm256_load_ps(inputVectorPtr);
inputVectorPtr += 8;
// Scale and clip
ret1 = _mm256_max_ps(_mm256_min_ps(_mm256_mul_ps(inputVal1, vScalar), vmax_val),
vmin_val);
ret2 = _mm256_max_ps(_mm256_min_ps(_mm256_mul_ps(inputVal2, vScalar), vmax_val),
vmin_val);
intInputVal1 = _mm256_cvtps_epi32(ret1);
intInputVal2 = _mm256_cvtps_epi32(ret2);
intInputVal1 = _mm256_packs_epi32(intInputVal1, intInputVal2);
intInputVal1 = _mm256_permute4x64_epi64(intInputVal1, 0b11011000);
_mm256_store_si256((__m256i*)outputVectorPtr, intInputVal1);
outputVectorPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_AVX512F
#include <immintrin.h>
static inline void volk_32f_s32f_convert_16i_a_avx512(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m512 vScalar = _mm512_set1_ps(scalar);
__m512 inputVal;
__m256i intInputVal;
__m512 ret;
__m512 vmin_val = _mm512_set1_ps(min_val);
__m512 vmax_val = _mm512_set1_ps(max_val);
for (; number < sixteenthPoints; number++) {
inputVal = _mm512_load_ps(inputVectorPtr);
inputVectorPtr += 16;
// Scale and clip
ret = _mm512_max_ps(_mm512_min_ps(_mm512_mul_ps(inputVal, vScalar), vmax_val),
vmin_val);
// Convert float to int32, then pack to int16 with saturation
intInputVal = _mm512_cvtsepi32_epi16(_mm512_cvtps_epi32(ret));
_mm256_store_si256((__m256i*)outputVectorPtr, intInputVal);
outputVectorPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_AVX512F */
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32f_s32f_convert_16i_a_avx(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m256 vScalar = _mm256_set1_ps(scalar);
__m256 inputVal, ret;
__m256i intInputVal;
__m128i intInputVal1, intInputVal2;
__m256 vmin_val = _mm256_set1_ps(min_val);
__m256 vmax_val = _mm256_set1_ps(max_val);
for (; number < eighthPoints; number++) {
inputVal = _mm256_load_ps(inputVectorPtr);
inputVectorPtr += 8;
// Scale and clip
ret = _mm256_max_ps(_mm256_min_ps(_mm256_mul_ps(inputVal, vScalar), vmax_val),
vmin_val);
intInputVal = _mm256_cvtps_epi32(ret);
intInputVal1 = _mm256_extractf128_si256(intInputVal, 0);
intInputVal2 = _mm256_extractf128_si256(intInputVal, 1);
intInputVal1 = _mm_packs_epi32(intInputVal1, intInputVal2);
_mm_store_si128((__m128i*)outputVectorPtr, intInputVal1);
outputVectorPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_SSE2
#include <emmintrin.h>
static inline void volk_32f_s32f_convert_16i_a_sse2(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m128 vScalar = _mm_set_ps1(scalar);
__m128 inputVal1, inputVal2;
__m128i intInputVal1, intInputVal2;
__m128 ret1, ret2;
__m128 vmin_val = _mm_set_ps1(min_val);
__m128 vmax_val = _mm_set_ps1(max_val);
for (; number < eighthPoints; number++) {
inputVal1 = _mm_load_ps(inputVectorPtr);
inputVectorPtr += 4;
inputVal2 = _mm_load_ps(inputVectorPtr);
inputVectorPtr += 4;
// Scale and clip
ret1 = _mm_max_ps(_mm_min_ps(_mm_mul_ps(inputVal1, vScalar), vmax_val), vmin_val);
ret2 = _mm_max_ps(_mm_min_ps(_mm_mul_ps(inputVal2, vScalar), vmax_val), vmin_val);
intInputVal1 = _mm_cvtps_epi32(ret1);
intInputVal2 = _mm_cvtps_epi32(ret2);
intInputVal1 = _mm_packs_epi32(intInputVal1, intInputVal2);
_mm_store_si128((__m128i*)outputVectorPtr, intInputVal1);
outputVectorPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_SSE2 */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void volk_32f_s32f_convert_16i_a_sse(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int quarterPoints = num_points / 4;
const float* inputVectorPtr = (const float*)inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
__m128 vScalar = _mm_set_ps1(scalar);
__m128 ret;
__m128 vmin_val = _mm_set_ps1(min_val);
__m128 vmax_val = _mm_set_ps1(max_val);
__VOLK_ATTR_ALIGNED(16) float outputFloatBuffer[4];
for (; number < quarterPoints; number++) {
ret = _mm_load_ps(inputVectorPtr);
inputVectorPtr += 4;
// Scale and clip
ret = _mm_max_ps(_mm_min_ps(_mm_mul_ps(ret, vScalar), vmax_val), vmin_val);
_mm_store_ps(outputFloatBuffer, ret);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[0]);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[1]);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[2]);
*outputVectorPtr++ = (int16_t)rintf(outputFloatBuffer[3]);
}
number = quarterPoints * 4;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_32f_s32f_convert_16i_neon(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
const float* inputVectorPtr = inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
float32x4_t vScalar = vdupq_n_f32(scalar);
float32x4_t vmin_val = vdupq_n_f32(min_val);
float32x4_t vmax_val = vdupq_n_f32(max_val);
for (; number < eighthPoints; number++) {
float32x4_t inputVal1 = vld1q_f32(inputVectorPtr);
float32x4_t inputVal2 = vld1q_f32(inputVectorPtr + 4);
inputVectorPtr += 8;
// Scale and clip
float32x4_t ret1 =
vmaxq_f32(vminq_f32(vmulq_f32(inputVal1, vScalar), vmax_val), vmin_val);
float32x4_t ret2 =
vmaxq_f32(vminq_f32(vmulq_f32(inputVal2, vScalar), vmax_val), vmin_val);
// Round to nearest: add copysign(0.5, x) before truncating
float32x4_t half = vdupq_n_f32(0.5f);
float32x4_t neg_half = vdupq_n_f32(-0.5f);
float32x4_t zero = vdupq_n_f32(0.0f);
uint32x4_t neg1 = vcltq_f32(ret1, zero);
uint32x4_t neg2 = vcltq_f32(ret2, zero);
ret1 = vaddq_f32(ret1, vbslq_f32(neg1, neg_half, half));
ret2 = vaddq_f32(ret2, vbslq_f32(neg2, neg_half, half));
// Convert to int32 (truncates towards zero, but we pre-rounded)
int32x4_t intVal1 = vcvtq_s32_f32(ret1);
int32x4_t intVal2 = vcvtq_s32_f32(ret2);
// Narrow to int16 with saturation
int16x4_t narrow1 = vqmovn_s32(intVal1);
int16x4_t narrow2 = vqmovn_s32(intVal2);
int16x8_t result = vcombine_s16(narrow1, narrow2);
vst1q_s16(outputVectorPtr, result);
outputVectorPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_NEONV8
#include <arm_neon.h>
static inline void volk_32f_s32f_convert_16i_neonv8(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
const float* inputVectorPtr = inputVector;
int16_t* outputVectorPtr = outputVector;
float min_val = SHRT_MIN;
float max_val = SHRT_MAX;
float r;
float32x4_t vScalar = vdupq_n_f32(scalar);
float32x4_t vmin_val = vdupq_n_f32(min_val);
float32x4_t vmax_val = vdupq_n_f32(max_val);
for (; number < sixteenthPoints; number++) {
float32x4_t inputVal0 = vld1q_f32(inputVectorPtr);
float32x4_t inputVal1 = vld1q_f32(inputVectorPtr + 4);
float32x4_t inputVal2 = vld1q_f32(inputVectorPtr + 8);
float32x4_t inputVal3 = vld1q_f32(inputVectorPtr + 12);
__VOLK_PREFETCH(inputVectorPtr + 16);
inputVectorPtr += 16;
// Scale and clip
float32x4_t ret0 =
vmaxq_f32(vminq_f32(vmulq_f32(inputVal0, vScalar), vmax_val), vmin_val);
float32x4_t ret1 =
vmaxq_f32(vminq_f32(vmulq_f32(inputVal1, vScalar), vmax_val), vmin_val);
float32x4_t ret2 =
vmaxq_f32(vminq_f32(vmulq_f32(inputVal2, vScalar), vmax_val), vmin_val);
float32x4_t ret3 =
vmaxq_f32(vminq_f32(vmulq_f32(inputVal3, vScalar), vmax_val), vmin_val);
// Convert to int32 using round-to-nearest (ARMv8)
int32x4_t intVal0 = vcvtnq_s32_f32(ret0);
int32x4_t intVal1 = vcvtnq_s32_f32(ret1);
int32x4_t intVal2 = vcvtnq_s32_f32(ret2);
int32x4_t intVal3 = vcvtnq_s32_f32(ret3);
// Narrow to int16 with saturation
int16x4_t narrow0 = vqmovn_s32(intVal0);
int16x4_t narrow1 = vqmovn_s32(intVal1);
int16x4_t narrow2 = vqmovn_s32(intVal2);
int16x4_t narrow3 = vqmovn_s32(intVal3);
int16x8_t result0 = vcombine_s16(narrow0, narrow1);
int16x8_t result1 = vcombine_s16(narrow2, narrow3);
vst1q_s16(outputVectorPtr, result0);
vst1q_s16(outputVectorPtr + 8, result1);
outputVectorPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
r = inputVector[number] * scalar;
if (r > max_val)
r = max_val;
else if (r < min_val)
r = min_val;
outputVector[number] = (int16_t)rintf(r);
}
}
#endif /* LV_HAVE_NEONV8 */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_32f_s32f_convert_16i_rvv(int16_t* outputVector,
const float* inputVector,
const float scalar,
unsigned int num_points)
{
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, inputVector += vl, outputVector += vl) {
vl = __riscv_vsetvl_e32m8(n);
vfloat32m8_t v = __riscv_vle32_v_f32m8(inputVector, vl);
v = __riscv_vfmul(v, scalar, vl);
__riscv_vse16(outputVector, __riscv_vfncvt_x(v, vl), vl);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_32f_s32f_convert_16i_a_H */