mirror of
https://github.com/saymrwulf/uhd.git
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196 lines
9.1 KiB
C++
196 lines
9.1 KiB
C++
//
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// Copyright 2011-2011 Ettus Research LLC
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#include "convert_common.hpp"
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#include <uhd/utils/byteswap.hpp>
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#include <emmintrin.h>
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using namespace uhd::convert;
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DECLARE_CONVERTER(convert_fc32_1_to_item32_1_nswap, PRIORITY_CUSTOM){
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const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]);
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item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
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const __m128 scalar = _mm_set_ps1(float(scale_factor));
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#define convert_fc32_1_to_item32_1_nswap_guts(_al_) \
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for (; i < (nsamps & ~0x3); i+=4){ \
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/* load from input */ \
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__m128 tmplo = _mm_load ## _al_ ## _ps(reinterpret_cast<const float *>(input+i+0)); \
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__m128 tmphi = _mm_load ## _al_ ## _ps(reinterpret_cast<const float *>(input+i+2)); \
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\
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/* convert and scale */ \
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__m128i tmpilo = _mm_cvtps_epi32(_mm_mul_ps(tmplo, scalar)); \
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__m128i tmpihi = _mm_cvtps_epi32(_mm_mul_ps(tmphi, scalar)); \
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\
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/* pack + swap 16-bit pairs */ \
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__m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi); \
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tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
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tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
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\
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/* store to output */ \
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_mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi); \
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} \
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size_t i = 0;
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//dispatch according to alignment
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switch (size_t(input) & 0xf){
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case 0x8:
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output[i] = fc32_to_item32(input[i], float(scale_factor)); i++;
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case 0x0:
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convert_fc32_1_to_item32_1_nswap_guts()
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break;
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default: convert_fc32_1_to_item32_1_nswap_guts(u)
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}
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//convert remainder
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for (; i < nsamps; i++){
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output[i] = fc32_to_item32(input[i], float(scale_factor));
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}
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}
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DECLARE_CONVERTER(convert_fc32_1_to_item32_1_bswap, PRIORITY_CUSTOM){
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const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]);
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item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
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const __m128 scalar = _mm_set_ps1(float(scale_factor));
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#define convert_fc32_1_to_item32_1_bswap_guts(_al_) \
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for (; i < (nsamps & ~0x3); i+=4){ \
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/* load from input */ \
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__m128 tmplo = _mm_load ## _al_ ## _ps(reinterpret_cast<const float *>(input+i+0)); \
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__m128 tmphi = _mm_load ## _al_ ## _ps(reinterpret_cast<const float *>(input+i+2)); \
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\
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/* convert and scale */ \
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__m128i tmpilo = _mm_cvtps_epi32(_mm_mul_ps(tmplo, scalar)); \
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__m128i tmpihi = _mm_cvtps_epi32(_mm_mul_ps(tmphi, scalar)); \
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\
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/* pack + byteswap -> byteswap 16 bit words */ \
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__m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi); \
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tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8)); \
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\
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/* store to output */ \
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_mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi); \
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} \
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size_t i = 0;
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//dispatch according to alignment
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switch (size_t(input) & 0xf){
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case 0x8:
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output[i] = uhd::byteswap(fc32_to_item32(input[i], float(scale_factor))); i++;
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case 0x0:
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convert_fc32_1_to_item32_1_bswap_guts()
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break;
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default: convert_fc32_1_to_item32_1_bswap_guts(u)
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}
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//convert remainder
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for (; i < nsamps; i++){
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output[i] = uhd::byteswap(fc32_to_item32(input[i], float(scale_factor)));
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}
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}
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DECLARE_CONVERTER(convert_item32_1_to_fc32_1_nswap, PRIORITY_CUSTOM){
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const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
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fc32_t *output = reinterpret_cast<fc32_t *>(outputs[0]);
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const __m128 scalar = _mm_set_ps1(float(scale_factor)/(1 << 16));
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const __m128i zeroi = _mm_setzero_si128();
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#define convert_item32_1_to_fc32_1_nswap_guts(_al_) \
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for (; i < (nsamps & ~0x3); i+=4){ \
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/* load from input */ \
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__m128i tmpi = _mm_loadu_si128(reinterpret_cast<const __m128i *>(input+i)); \
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\
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/* unpack + swap 16-bit pairs */ \
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tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
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tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
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__m128i tmpilo = _mm_unpacklo_epi16(zeroi, tmpi); /* value in upper 16 bits */ \
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__m128i tmpihi = _mm_unpackhi_epi16(zeroi, tmpi); \
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\
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/* convert and scale */ \
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__m128 tmplo = _mm_mul_ps(_mm_cvtepi32_ps(tmpilo), scalar); \
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__m128 tmphi = _mm_mul_ps(_mm_cvtepi32_ps(tmpihi), scalar); \
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\
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/* store to output */ \
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_mm_store ## _al_ ## _ps(reinterpret_cast<float *>(output+i+0), tmplo); \
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_mm_store ## _al_ ## _ps(reinterpret_cast<float *>(output+i+2), tmphi); \
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} \
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size_t i = 0;
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//dispatch according to alignment
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switch (size_t(output) & 0xf){
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case 0x8:
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output[i] = item32_to_fc32(input[i], float(scale_factor)); i++;
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case 0x0:
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convert_item32_1_to_fc32_1_nswap_guts()
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break;
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default: convert_item32_1_to_fc32_1_nswap_guts(u)
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}
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//convert remainder
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for (; i < nsamps; i++){
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output[i] = item32_to_fc32(input[i], float(scale_factor));
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}
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}
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DECLARE_CONVERTER(convert_item32_1_to_fc32_1_bswap, PRIORITY_CUSTOM){
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const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
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fc32_t *output = reinterpret_cast<fc32_t *>(outputs[0]);
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const __m128 scalar = _mm_set_ps1(float(scale_factor)/(1 << 16));
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const __m128i zeroi = _mm_setzero_si128();
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#define convert_item32_1_to_fc32_1_bswap_guts(_al_) \
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for (; i < (nsamps & ~0x3); i+=4){ \
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/* load from input */ \
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__m128i tmpi = _mm_loadu_si128(reinterpret_cast<const __m128i *>(input+i)); \
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\
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/* byteswap + unpack -> byteswap 16 bit words */ \
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tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8)); \
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__m128i tmpilo = _mm_unpacklo_epi16(zeroi, tmpi); /* value in upper 16 bits */ \
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__m128i tmpihi = _mm_unpackhi_epi16(zeroi, tmpi); \
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\
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/* convert and scale */ \
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__m128 tmplo = _mm_mul_ps(_mm_cvtepi32_ps(tmpilo), scalar); \
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__m128 tmphi = _mm_mul_ps(_mm_cvtepi32_ps(tmpihi), scalar); \
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\
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/* store to output */ \
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_mm_store ## _al_ ## _ps(reinterpret_cast<float *>(output+i+0), tmplo); \
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_mm_store ## _al_ ## _ps(reinterpret_cast<float *>(output+i+2), tmphi); \
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} \
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size_t i = 0;
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//dispatch according to alignment
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switch (size_t(output) & 0xf){
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case 0x8:
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output[i] = item32_to_fc32(uhd::byteswap(input[i]), float(scale_factor)); i++;
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case 0x0:
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convert_item32_1_to_fc32_1_bswap_guts()
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break;
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default: convert_item32_1_to_fc32_1_bswap_guts(u)
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}
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//convert remainder
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for (; i < nsamps; i++){
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output[i] = item32_to_fc32(uhd::byteswap(input[i]), float(scale_factor));
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}
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}
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