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adding definition of new volk_gnsssdr kernel: 16-bit complex rotator

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generic implementation only
This commit is contained in:
Carles Fernandez 2016-01-27 18:34:20 +01:00
parent 1d9fc3ceae
commit 4e12f6ee5a
3 changed files with 137 additions and 0 deletions
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32
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_16ic_rotatorpuppet_16ic.h Normal file
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@ -0,0 +1,32 @@
#ifndef INCLUDED_volk_gnsssdr_16ic_rotatorpuppet_16ic_H
#define INCLUDED_volk_gnsssdr_16ic_rotatorpuppet_16ic_H
#include <volk_gnsssdr/volk_gnsssdr_complex.h>
#include "volk_gnsssdr/volk_gnsssdr_16ic_s32fc_x2_rotator_16ic.h"
#ifdef LV_HAVE_GENERIC
static inline void volk_gnsssdr_16ic_rotatorpuppet_16ic_generic(lv_16sc_t* outVector, const lv_16sc_t* inVector, unsigned int num_points)
{
lv_32fc_t phase[1] = {lv_cmake(.3, 0.95393)};
const lv_32fc_t phase_inc = lv_cmake(.1, 0.01);
volk_gnsssdr_16ic_s32fc_x2_rotator_16ic_generic(outVector, inVector, phase_inc, phase, num_points);
}
#endif /* LV_HAVE_GENERIC */
#ifdef LV_HAVE_NEON
static inline void volk_gnsssdr_16ic_rotatorpuppet_16ic_neon(lv_16sc_t* outVector, const lv_16sc_t* inVector, unsigned int num_points)
{
lv_32fc_t phase[1] = {lv_cmake(.3, 0.95393)};
const lv_32fc_t phase_inc = lv_cmake(.1, 0.01);
volk_gnsssdr_16ic_s32fc_x2_rotator_16ic_neon(outVector, inVector, phase_inc, phase, num_points);
}
#endif /* LV_HAVE_NEON */
#endif /* INCLUDED_volk_gnsssdr_16ic_rotatorpuppet_16ic_H */

104
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_16ic_s32fc_x2_rotator_16ic.h Normal file
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/*!
* \file volk_16ic_s32fc_x2_rotator_16ic.h
* \brief Volk protokernel: rotates a 16 bits complex vector
* \authors <ul>
* <li> Carles Fernandez-Prades, 2015 cfernandez at cttc.es
* </ul>
*
* Volk protokernel that rotates a 16-bit complex vector
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR 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, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef INCLUDED_volk_gnsssdr_16ic_s32fc_x2_rotator_16ic_H
#define INCLUDED_volk_gnsssdr_16ic_s32fc_x2_rotator_16ic_H
#include <volk_gnsssdr/volk_gnsssdr_complex.h>
#include <math.h>
#define ROTATOR_RELOAD 512
#ifdef LV_HAVE_GENERIC
static inline void volk_gnsssdr_16ic_s32fc_x2_rotator_16ic_generic(lv_16sc_t* outVector, const lv_16sc_t* inVector, const lv_32fc_t phase_inc, lv_32fc_t* phase, unsigned int num_points)
{
unsigned int i = 0;
int j = 0;
for(i = 0; i < (unsigned int)(num_points / ROTATOR_RELOAD); ++i)
{
for(j = 0; j < ROTATOR_RELOAD; ++j)
{
*outVector++ = *inVector++ * (*phase);
(*phase) *= phase_inc;
}
#ifdef __cplusplus
(*phase) /= std::abs((*phase));
#else
//(*phase) /= cabsf((*phase));
(*phase) /= hypotf(lv_creal(*phase), lv_cimag(*phase));
#endif
}
for(i = 0; i < num_points % ROTATOR_RELOAD; ++i)
{
*outVector++ = *inVector++ * (*phase);
(*phase) *= phase_inc;
}
}
#endif /* LV_HAVE_GENERIC */
#ifdef LV_HAVE_NEON
#include <arm.neon.h>
static inline void volk_gnsssdr_16ic_s32fc_x2_rotator_16ic_neon(lv_16sc_t* outVector, const lv_16sc_t* inVector, const lv_32fc_t phase_inc, lv_32fc_t* phase, unsigned int num_points)
{
unsigned int i = 0;
int j = 0;
for(i = 0; i < (unsigned int)(num_points / ROTATOR_RELOAD); ++i)
{
for(j = 0; j < ROTATOR_RELOAD; ++j)
{
*outVector++ = *inVector++ * (*phase);
(*phase) *= phase_inc;
}
#ifdef __cplusplus
(*phase) /= std::abs((*phase));
#else
//(*phase) /= cabsf((*phase));
(*phase) /= hypotf(lv_creal(*phase), lv_cimag(*phase));
#endif
}
for(i = 0; i < num_points % ROTATOR_RELOAD; ++i)
{
*outVector++ = *inVector++ * (*phase);
(*phase) *= phase_inc;
}
}
#endif /* LV_HAVE_NEON */
#endif

1
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/lib/kernel_tests.h
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@ -77,6 +77,7 @@ std::vector<volk_gnsssdr_test_case_t> init_test_list(volk_gnsssdr_test_params_t
(VOLK_INIT_TEST(volk_gnsssdr_16ic_x2_dot_prod_16ic, test_params))
(VOLK_INIT_TEST(volk_gnsssdr_16ic_x2_multiply_16ic, test_params_more_iters))
(VOLK_INIT_TEST(volk_gnsssdr_16ic_convert_32fc, test_params_more_iters))
(VOLK_INIT_PUPP(volk_gnsssdr_16ic_rotatorpuppet_16ic, volk_gnsssdr_16ic_s32fc_x2_rotator_16ic, test_params))
(VOLK_INIT_PUPP(volk_gnsssdr_16ic_resamplerpuppet_16ic, volk_gnsssdr_16ic_resampler_16ic, test_params))
(VOLK_INIT_PUPP(volk_gnsssdr_16ic_resamplerxnpuppet_16ic, volk_gnsssdr_16ic_xn_resampler_16ic_xn, test_params))
(VOLK_INIT_PUPP(volk_gnsssdr_16ic_x2_dotprodxnpuppet_16ic, volk_gnsssdr_16ic_x2_dot_prod_16ic_xn, test_params))