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https://github.com/DrasLorus/CORDIC_Abs_APFX.git
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b72065e052
- Add an option `ENABLE_DEPFETCH` to use the CMake module FetchContent to pull dependencies from external locations.
243 lines
8.2 KiB
C++
243 lines
8.2 KiB
C++
/*
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*
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* Copyright 2022 Camille "DrasLorus" Monière.
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*
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* This file is part of CORDIC_Rotate_APFX.
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*
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* This program is free software: you can redistribute it and/or modify it under the terms of the GNU
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* Lesser General Public License as published by the Free Software Foundation, either version 3 of
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* the License, or (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, but WITHOUT ANY WARRANTY; without
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* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with this program.
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* If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "CCordicAbs/CCordicAbs.hpp"
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <cmath>
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#include <complex>
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#include <catch2/catch.hpp>
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#ifdef _MSC_VER
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#define R_FLAG "rt"
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#else
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#define R_FLAG "r"
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#endif
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using namespace std;
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using Catch::Matchers::Floating::WithinAbsMatcher;
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#if defined(SOFTWARE)
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TEST_CASE("Constexpr CordicAbs works with C-Types", "[CORDICABS]") {
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SECTION("W:16 - I:4 - Stages:6 - double") {
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typedef CCordicAbs<16, 4, 6> cordic_abs;
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string input_fn = "../data/input.dat"; // _8_14_4_17_5_19_7_12
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string output_fn = "../data/output.dat"; // _8_14_4_17_5_19_7_12
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constexpr unsigned n_lines = 100000;
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vector<complex<double>> values_in(n_lines);
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vector<double> values_out(n_lines);
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vector<double> results(n_lines);
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FILE * INPUT = fopen(input_fn.c_str(), R_FLAG);
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// Init test vector
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for (unsigned i = 0; i < n_lines; i++) {
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double a, b, r;
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fscanf(INPUT, "%lf,%lf,%lf\n", &a, &b, &r);
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const complex<double> c {a, b};
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values_in[i] = c;
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const double ac = std::abs(c);
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results[i] = ac;
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}
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fclose(INPUT);
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// Save the results to a file
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// ofstream outfile("results.dat");
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constexpr double abs_margin = double(1 << (cordic_abs::Out_I - 1)) * 2. / 100.;
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// Executing the encoder
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for (unsigned iter = 0; iter < n_lines; iter++) {
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// Execute
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values_out[iter] = cordic_abs::process(values_in[iter]);
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// Display the results
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// cout << "Series " << iter;
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// cout << " Outcome: ";
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// outfile << values_in[iter].real() << " " << values_in[iter].imag() << " " << values_out[iter] << " " << results[iter] << endl;
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REQUIRE_THAT(values_out[iter], WithinAbsMatcher(results[iter], abs_margin));
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}
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// outfile.close();
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}
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SECTION("W:16 - I:4 - Stages:6 - int64") {
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typedef CCordicAbs<16, 4, 6> cordic_abs;
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string input_fn = "../data/input.dat"; // _8_14_4_17_5_19_7_12
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string output_fn = "../data/output.dat"; // _8_14_4_17_5_19_7_12
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constexpr unsigned n_lines = 100000;
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vector<complex<int64_t>> values_in(n_lines);
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vector<uint64_t> values_out(n_lines);
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vector<double> results(n_lines);
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FILE * INPUT = fopen(input_fn.c_str(), R_FLAG);
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// Init test vector
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for (unsigned i = 0; i < n_lines; i++) {
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double a, b, r;
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fscanf(INPUT, "%lf,%lf,%lf\n", &a, &b, &r);
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const complex<double> c {a, b};
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const complex<int64_t> ic {(int64_t) floor(c.real() * cordic_abs::in_scale_factor),
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(int64_t) floor(c.imag() * cordic_abs::in_scale_factor)};
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values_in[i] = ic;
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const double ac = std::abs(c);
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results[i] = ac;
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}
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fclose(INPUT);
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// Save the results to a file
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// ofstream outfile("results.dat");
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constexpr double abs_margin = double(1 << (cordic_abs::Out_I - 1)) * 2. / 100.;
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// Executing the encoder
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for (unsigned iter = 0; iter < n_lines; iter++) {
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// Execute
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values_out[iter] = cordic_abs::process(values_in[iter]);
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// Display the results
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// cout << "Series " << iter;
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// cout << " Outcome: ";
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// outfile << values_in[iter].real() << " " << values_in[iter].imag() << " " << values_out[iter] << " " << results[iter] << endl;
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REQUIRE_THAT(cordic_abs::scale_cordic(double(values_out[iter])) / cordic_abs::out_scale_factor, WithinAbsMatcher(results[iter], abs_margin));
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}
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// outfile.close();
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}
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}
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#endif
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TEST_CASE("Constexpr CordicAbs works with AP-Types", "[CORDICABS]") {
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SECTION("W:16 - I:4 - Stages:6") {
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typedef CCordicAbs<16, 4, 6> cordic_abs;
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string input_fn = "../data/input.dat"; // _8_14_4_17_5_19_7_12
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constexpr unsigned n_lines = 100000;
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vector<ap_int<cordic_abs::In_W>> re_values_in(n_lines);
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vector<ap_int<cordic_abs::In_W>> im_values_in(n_lines);
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vector<ap_uint<cordic_abs::Out_W>> values_out(n_lines);
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vector<double> results(n_lines);
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FILE * INPUT = fopen(input_fn.c_str(), R_FLAG);
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if (!bool(INPUT)) {
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throw(string("fopen failed for ") + input_fn + string(": ") + string(strerror(errno)));
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}
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// Init test vector
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for (unsigned i = 0; i < n_lines; i++) {
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double a, b, r;
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fscanf(INPUT, "%lf,%lf,%lf\n", &a, &b, &r);
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re_values_in[i] = int64_t(floor(a * cordic_abs::in_scale_factor));
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im_values_in[i] = int64_t(floor(b * cordic_abs::in_scale_factor));
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const double ac = std::abs(complex<double> {a, b});
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results[i] = ac;
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}
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fclose(INPUT);
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// Save the results to a file
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// ofstream outfile("results.dat");
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constexpr double abs_margin = double(1 << (cordic_abs::Out_I - 1)) * 2. / 100.;
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// Executing the encoder
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for (unsigned iter = 0; iter < n_lines; iter++) {
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// Execute
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values_out[iter] = cordic_abs::process(re_values_in[iter], im_values_in[iter]);
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// Display the results
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// cout << "Series " << iter;
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// cout << " Outcome: ";
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// outfile << re_values_in[iter].to_double() / cordic_abs::in_scale_factor << " "
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// << im_values_in[iter].to_double() / cordic_abs::in_scale_factor << " "
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// << cordic_abs::scale_cordic(values_out[iter].to_double()) / cordic_abs::out_scale_factor << " "
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// << results[iter] << endl;
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const double dbl_res = cordic_abs::scale_cordic(values_out[iter].to_double()) / cordic_abs::out_scale_factor;
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REQUIRE_THAT(dbl_res, WithinAbsMatcher(results[iter], abs_margin));
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}
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// outfile.close();
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// Compare the results file with the golden results
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// int retval = 0;
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// Return 0 if the test passed
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}
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}
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#if defined(SOFTWARE)
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TEST_CASE("Constexpr CordicAbs are evaluated during compilation.", "[CORDICABS]") {
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SECTION("W:16 - I:4 - Stages:6 - C-Types") {
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typedef CCordicAbs<16, 4, 6> cordic_abs;
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constexpr const complex<int64_t> value_in[3] = {int(1U << 12) * 97, -int(1U << 12) * 33, int(1U << 3) * 12};
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constexpr uint64_t res10 = cordic_abs::process(value_in[0]);
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constexpr uint64_t res20 = cordic_abs::process(value_in[0]);
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static_assert(res10 == res20, "Test");
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REQUIRE_FALSE(res10 == cordic_abs::process(complex<int64_t>(1, 0)));
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REQUIRE(res10 == cordic_abs::process(value_in[0]));
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constexpr uint64_t res11 = cordic_abs::process(value_in[1]);
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constexpr uint64_t res21 = cordic_abs::process(value_in[1]);
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static_assert(res11 == res21, "Test");
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REQUIRE_FALSE(res11 == cordic_abs::process(complex<int64_t>(1, 0)));
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REQUIRE(res11 == cordic_abs::process(value_in[1]));
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constexpr uint64_t res12 = cordic_abs::process(value_in[2]);
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constexpr uint64_t res22 = cordic_abs::process(value_in[2]);
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static_assert(res12 == res22, "Test");
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REQUIRE_FALSE(res12 == cordic_abs::process(complex<int64_t>(1, 0)));
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REQUIRE(res12 == cordic_abs::process(value_in[2]));
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}
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}
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#endif |