124 lines
4.9 KiB
C
124 lines
4.9 KiB
C
/*
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This software is part of libcsdr, a set of simple DSP routines for
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Software Defined Radio.
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Copyright (c) 2014-2015, Andras Retzler <randras@sdr.hu>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL ANDRAS RETZLER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <time.h>
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#include "libcsdr.h"
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#include "libcsdr_gpl.h"
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#define T_BUFSIZE (1024*1024/4)
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#define T_N (200)
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#define T_TAPS (1023)
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#define T_DECFACT (200)
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int main()
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{
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fprintf(stderr,"Getting a %d of random samples...\n", T_BUFSIZE);
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int urand_fp = open("/dev/urandom",O_RDWR);
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unsigned char* buf_u8 = (unsigned char*)malloc(sizeof(unsigned char)*T_BUFSIZE*2);
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complexf* buf_c = (complexf*)malloc(sizeof(complexf)*T_BUFSIZE);
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complexf* outbuf_c = (complexf*)malloc(sizeof(complexf)*T_BUFSIZE);
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read(urand_fp, buf_u8, T_BUFSIZE);
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close(urand_fp);
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for(int i=0;i<T_BUFSIZE;i++)
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{
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iof(buf_c,i)=buf_u8[2*i]/128.0;
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qof(buf_c,i)=buf_u8[2*i+1]/128.0;
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}
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float* taps_f = (float*)malloc(sizeof(float)*T_TAPS);
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firdes_lowpass_f(taps_f, T_TAPS, 1.0f/T_DECFACT, WINDOW_DEFAULT);
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struct timespec start_time, end_time;
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fprintf(stderr,"Starting tests of processing %d samples...\n", T_BUFSIZE*T_N);
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//fir_decimate_cc
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clock_gettime(CLOCK_MONOTONIC_RAW, &start_time);
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for(int i=0;i<T_N;i++) fir_decimate_cc(buf_c, outbuf_c, T_BUFSIZE, 10, taps_f, T_TAPS);
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clock_gettime(CLOCK_MONOTONIC_RAW, &end_time);
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fprintf(stderr,"fir_decimate_cc done in %g seconds.\n",TIME_TAKEN(start_time,end_time));
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//shift_math_cc
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float starting_phase = 0;
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clock_gettime(CLOCK_MONOTONIC_RAW, &start_time);
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for(int i=0;i<T_N;i++) starting_phase = shift_math_cc(buf_c, outbuf_c, T_BUFSIZE, 0.1, starting_phase);
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clock_gettime(CLOCK_MONOTONIC_RAW, &end_time);
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fprintf(stderr,"shift_math_cc done in %g seconds.\n",TIME_TAKEN(start_time,end_time));
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//shift_table_cc
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shift_table_data_t shift_table_data=shift_table_init(65536);
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starting_phase = 0;
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clock_gettime(CLOCK_MONOTONIC_RAW, &start_time);
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for(int i=0;i<T_N;i++) starting_phase = starting_phase=shift_table_cc(buf_c, outbuf_c, T_BUFSIZE, 0.1, shift_table_data, starting_phase);;
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clock_gettime(CLOCK_MONOTONIC_RAW, &end_time);
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fprintf(stderr,"shift_table_cc (table size = %d) done in %g seconds.\n",65536,TIME_TAKEN(start_time,end_time));
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//shift_addition_cc
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shift_addition_data_t data_addition = shift_addition_init(0.1);
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starting_phase = 0;
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clock_gettime(CLOCK_MONOTONIC_RAW, &start_time);
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for(int i=0;i<T_N;i++) starting_phase = shift_addition_cc(buf_c, outbuf_c, T_BUFSIZE, data_addition, starting_phase);
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clock_gettime(CLOCK_MONOTONIC_RAW, &end_time);
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fprintf(stderr,"shift_addition_cc done in %g seconds.\n",TIME_TAKEN(start_time,end_time));
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//shift_addfast_cc
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shift_addfast_data_t data_addfast = shift_addfast_init(0.1);
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starting_phase = 0;
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clock_gettime(CLOCK_MONOTONIC_RAW, &start_time);
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for(int i=0;i<T_N;i++) starting_phase = shift_addfast_cc(buf_c, outbuf_c, T_BUFSIZE, &data_addfast, starting_phase);
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clock_gettime(CLOCK_MONOTONIC_RAW, &end_time);
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fprintf(stderr,"shift_addfast_cc done in %g seconds.\n",TIME_TAKEN(start_time,end_time));
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//shift_unroll_cc
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shift_unroll_data_t data_unroll = shift_unroll_init(0.1, T_BUFSIZE);
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starting_phase = 0;
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clock_gettime(CLOCK_MONOTONIC_RAW, &start_time);
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for(int i=0;i<T_N;i++) starting_phase = shift_unroll_cc(buf_c, outbuf_c, T_BUFSIZE, &data_unroll, starting_phase);
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clock_gettime(CLOCK_MONOTONIC_RAW, &end_time);
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fprintf(stderr,"shift_unroll_cc done in %g seconds.\n",TIME_TAKEN(start_time,end_time));
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}
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