CORDIC_Abs_APFX/sources/tb/cordicabs_tb.cpp
Camille Monière cb06836072
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2022-04-21 15:32:39 +02:00

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/*
*
* Copyright 2022 Camille "DrasLorus" Monière.
*
* This file is part of CORDIC_Rotate_APFX.
*
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU
* Lesser General Public License as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this program.
* If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "CCordicAbs/CCordicAbs.hpp"
#include <cstdint>
#include <cstdio>
#include <cstring>
#include <fstream>
#include <iostream>
#include <cmath>
#include <complex>
#include <catch2/catch.hpp>
using namespace std;
using Catch::Matchers::Floating::WithinAbsMatcher;
#if defined(SOFTWARE)
TEST_CASE("Constexpr CordicAbs works with C-Types", "[CORDICABS]") {
SECTION("W:16 - I:4 - Stages:6 - double") {
typedef CCordicAbs<16, 4, 6> cordic_abs;
string input_fn = "../data/input.dat"; // _8_14_4_17_5_19_7_12
string output_fn = "../data/output.dat"; // _8_14_4_17_5_19_7_12
constexpr unsigned n_lines = 100000;
complex<double> values_in[n_lines];
double values_out[n_lines];
double results[n_lines];
FILE * INPUT = fopen(input_fn.c_str(), "r");
// Init test vector
for (unsigned i = 0; i < n_lines; i++) {
double a, b, r;
fscanf(INPUT, "%lf,%lf,%lf\n", &a, &b, &r);
const complex<double> c {a, b};
values_in[i] = c;
const double ac = std::abs(c);
results[i] = ac;
}
fclose(INPUT);
// Save the results to a file
// ofstream outfile("results.dat");
constexpr double abs_margin = double(1 << (cordic_abs::Out_I - 1)) * 2. / 100.;
// Executing the encoder
for (unsigned iter = 0; iter < n_lines; iter++) {
// Execute
values_out[iter] = cordic_abs::process(values_in[iter]);
// Display the results
// cout << "Series " << iter;
// cout << " Outcome: ";
// outfile << values_in[iter].real() << " " << values_in[iter].imag() << " " << values_out[iter] << " " << results[iter] << endl;
REQUIRE_THAT(values_out[iter], WithinAbsMatcher(results[iter], abs_margin));
}
// outfile.close();
}
SECTION("W:16 - I:4 - Stages:6 - int64") {
typedef CCordicAbs<16, 4, 6> cordic_abs;
string input_fn = "../data/input.dat"; // _8_14_4_17_5_19_7_12
string output_fn = "../data/output.dat"; // _8_14_4_17_5_19_7_12
constexpr unsigned n_lines = 100000;
complex<int64_t> values_in[n_lines];
int64_t values_out[n_lines];
double results[n_lines];
FILE * INPUT = fopen(input_fn.c_str(), "r");
// Init test vector
for (unsigned i = 0; i < n_lines; i++) {
double a, b, r;
fscanf(INPUT, "%lf,%lf,%lf\n", &a, &b, &r);
const complex<double> c {a, b};
const complex<int64_t> ic {(int64_t) floor(c.real() * cordic_abs::in_scale_factor),
(int64_t) floor(c.imag() * cordic_abs::in_scale_factor)};
values_in[i] = ic;
const double ac = std::abs(c);
results[i] = ac;
}
fclose(INPUT);
// Save the results to a file
// ofstream outfile("results.dat");
constexpr double abs_margin = double(1 << (cordic_abs::Out_I - 1)) * 2. / 100.;
// Executing the encoder
for (unsigned iter = 0; iter < n_lines; iter++) {
// Execute
values_out[iter] = cordic_abs::process(values_in[iter]);
// Display the results
// cout << "Series " << iter;
// cout << " Outcome: ";
// outfile << values_in[iter].real() << " " << values_in[iter].imag() << " " << values_out[iter] << " " << results[iter] << endl;
REQUIRE_THAT(cordic_abs::scale_cordic(double(values_out[iter])) / cordic_abs::out_scale_factor, WithinAbsMatcher(results[iter], abs_margin));
}
// outfile.close();
}
}
#endif
TEST_CASE("Constexpr CordicAbs works with AP-Types", "[CORDICABS]") {
SECTION("W:16 - I:4 - Stages:6") {
typedef CCordicAbs<16, 4, 6> cordic_abs;
string input_fn = "../data/input.dat"; // _8_14_4_17_5_19_7_12
constexpr unsigned n_lines = 100000;
ap_int<cordic_abs::In_W> re_values_in[n_lines];
ap_int<cordic_abs::In_W> im_values_in[n_lines];
ap_uint<cordic_abs::Out_W> values_out[n_lines];
double results[n_lines];
FILE * INPUT = fopen(input_fn.c_str(), "r");
if (!bool(INPUT)) {
throw(string("fopen failed for ") + input_fn + string(": ") + string(strerror(errno)));
}
// Init test vector
for (unsigned i = 0; i < n_lines; i++) {
double a, b, r;
fscanf(INPUT, "%lf,%lf,%lf\n", &a, &b, &r);
re_values_in[i] = int64_t(floor(a * cordic_abs::in_scale_factor));
im_values_in[i] = int64_t(floor(b * cordic_abs::in_scale_factor));
const double ac = std::abs(complex<double> {a, b});
results[i] = ac;
}
fclose(INPUT);
// Save the results to a file
// ofstream outfile("results.dat");
constexpr double abs_margin = double(1 << (cordic_abs::Out_I - 1)) * 2. / 100.;
// Executing the encoder
for (unsigned iter = 0; iter < n_lines; iter++) {
// Execute
values_out[iter] = cordic_abs::process(re_values_in[iter], im_values_in[iter]);
// Display the results
// cout << "Series " << iter;
// cout << " Outcome: ";
// outfile << re_values_in[iter].to_double() / cordic_abs::in_scale_factor << " "
// << im_values_in[iter].to_double() / cordic_abs::in_scale_factor << " "
// << cordic_abs::scale_cordic(values_out[iter].to_double()) / cordic_abs::out_scale_factor << " "
// << results[iter] << endl;
const double dbl_res = cordic_abs::scale_cordic(values_out[iter].to_double()) / cordic_abs::out_scale_factor;
REQUIRE_THAT(dbl_res, WithinAbsMatcher(results[iter], abs_margin));
}
// outfile.close();
// Compare the results file with the golden results
// int retval = 0;
// Return 0 if the test passed
}
}
#if defined(SOFTWARE)
TEST_CASE("Constexpr CordicAbs are evaluated during compilation.", "[CORDICABS]") {
SECTION("W:16 - I:4 - Stages:6 - C-Types") {
typedef CCordicAbs<16, 4, 6> cordic_abs;
constexpr const complex<int64_t> value_in[3] = {(1U << 12) * 97, -(1U << 12) * 33, (1U << 3) * 12};
constexpr int64_t res10 = cordic_abs::process(value_in[0]);
constexpr int64_t res20 = cordic_abs::process(value_in[0]);
static_assert(res10 == res20, "Test");
REQUIRE_FALSE(res10 == cordic_abs::process(complex<int64_t>(1, 0)));
REQUIRE(res10 == cordic_abs::process(value_in[0]));
constexpr int64_t res11 = cordic_abs::process(value_in[1]);
constexpr int64_t res21 = cordic_abs::process(value_in[1]);
static_assert(res11 == res21, "Test");
REQUIRE_FALSE(res11 == cordic_abs::process(complex<int64_t>(1, 0)));
REQUIRE(res11 == cordic_abs::process(value_in[1]));
constexpr int64_t res12 = cordic_abs::process(value_in[2]);
constexpr int64_t res22 = cordic_abs::process(value_in[2]);
static_assert(res12 == res22, "Test");
REQUIRE_FALSE(res12 == cordic_abs::process(complex<int64_t>(1, 0)));
REQUIRE(res12 == cordic_abs::process(value_in[2]));
}
}
#endif