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-rw-r--r--host/test/convert_test.cpp234
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diff --git a/host/test/convert_test.cpp b/host/test/convert_test.cpp
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+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/convert.hpp>
+#include <boost/test/unit_test.hpp>
+#include <boost/foreach.hpp>
+#include <boost/cstdint.hpp>
+#include <complex>
+#include <vector>
+#include <cstdlib>
+#include <iostream>
+
+using namespace uhd;
+
+//typedefs for complex types
+typedef std::complex<boost::int16_t> sc16_t;
+typedef std::complex<float> fc32_t;
+
+#define MY_CHECK_CLOSE(a, b, f) if ((std::abs(a) > (f) and std::abs(b) > (f))) \
+ BOOST_CHECK_CLOSE_FRACTION(a, b, f)
+
+/***********************************************************************
+ * Loopback runner:
+ * convert input buffer into intermediate buffer
+ * convert intermediate buffer into output buffer
+ **********************************************************************/
+template <typename Range> static void loopback(
+ size_t nsamps,
+ const io_type_t &io_type,
+ const otw_type_t &otw_type,
+ const Range &input,
+ Range &output
+){
+ //item32 is largest device type
+ std::vector<boost::uint32_t> interm(nsamps);
+
+ convert::input_type input0(1, &input[0]), input1(1, &interm[0]);
+ convert::output_type output0(1, &interm[0]), output1(1, &output[0]);
+
+ //convert to intermediate type
+ convert::io_type_to_otw_type(
+ io_type, otw_type, input0, output0, nsamps
+ );
+
+ //convert back to host type
+ convert::otw_type_to_io_type(
+ io_type, otw_type, input1, output1, nsamps
+ );
+}
+
+/***********************************************************************
+ * Test short conversion
+ **********************************************************************/
+static void test_convert_types_sc16(
+ size_t nsamps,
+ const io_type_t &io_type,
+ const otw_type_t &otw_type
+){
+ //fill the input samples
+ std::vector<sc16_t> input(nsamps), output(nsamps);
+ BOOST_FOREACH(sc16_t &in, input) in = sc16_t(
+ std::rand()-(RAND_MAX/2),
+ std::rand()-(RAND_MAX/2)
+ );
+
+ //run the loopback and test
+ loopback(nsamps, io_type, otw_type, input, output);
+ BOOST_CHECK_EQUAL_COLLECTIONS(input.begin(), input.end(), output.begin(), output.end());
+}
+
+BOOST_AUTO_TEST_CASE(test_convert_types_be_sc16){
+ io_type_t io_type(io_type_t::COMPLEX_INT16);
+ otw_type_t otw_type;
+ otw_type.byteorder = otw_type_t::BO_BIG_ENDIAN;
+ otw_type.width = 16;
+
+ //try various lengths to test edge cases
+ for (size_t nsamps = 1; nsamps < 16; nsamps++){
+ test_convert_types_sc16(nsamps, io_type, otw_type);
+ }
+}
+
+BOOST_AUTO_TEST_CASE(test_convert_types_le_sc16){
+ io_type_t io_type(io_type_t::COMPLEX_INT16);
+ otw_type_t otw_type;
+ otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN;
+ otw_type.width = 16;
+
+ //try various lengths to test edge cases
+ for (size_t nsamps = 1; nsamps < 16; nsamps++){
+ test_convert_types_sc16(nsamps, io_type, otw_type);
+ }
+}
+
+/***********************************************************************
+ * Test float conversion
+ **********************************************************************/
+static void test_convert_types_fc32(
+ size_t nsamps,
+ const io_type_t &io_type,
+ const otw_type_t &otw_type
+){
+ //fill the input samples
+ std::vector<fc32_t> input(nsamps), output(nsamps);
+ BOOST_FOREACH(fc32_t &in, input) in = fc32_t(
+ (std::rand()/float(RAND_MAX/2)) - 1,
+ (std::rand()/float(RAND_MAX/2)) - 1
+ );
+
+ //run the loopback and test
+ loopback(nsamps, io_type, otw_type, input, output);
+ for (size_t i = 0; i < nsamps; i++){
+ MY_CHECK_CLOSE(input[i].real(), output[i].real(), float(0.01));
+ MY_CHECK_CLOSE(input[i].imag(), output[i].imag(), float(0.01));
+ }
+}
+
+BOOST_AUTO_TEST_CASE(test_convert_types_be_fc32){
+ io_type_t io_type(io_type_t::COMPLEX_FLOAT32);
+ otw_type_t otw_type;
+ otw_type.byteorder = otw_type_t::BO_BIG_ENDIAN;
+ otw_type.width = 16;
+
+ //try various lengths to test edge cases
+ for (size_t nsamps = 1; nsamps < 16; nsamps++){
+ test_convert_types_fc32(nsamps, io_type, otw_type);
+ }
+}
+
+BOOST_AUTO_TEST_CASE(test_convert_types_le_fc32){
+ io_type_t io_type(io_type_t::COMPLEX_FLOAT32);
+ otw_type_t otw_type;
+ otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN;
+ otw_type.width = 16;
+
+ //try various lengths to test edge cases
+ for (size_t nsamps = 1; nsamps < 16; nsamps++){
+ test_convert_types_fc32(nsamps, io_type, otw_type);
+ }
+}
+
+/***********************************************************************
+ * Test float to short conversion loopback
+ **********************************************************************/
+BOOST_AUTO_TEST_CASE(test_convert_types_fc32_to_sc16){
+ io_type_t io_type_in(io_type_t::COMPLEX_FLOAT32);
+ io_type_t io_type_out(io_type_t::COMPLEX_INT16);
+
+ otw_type_t otw_type;
+ otw_type.byteorder = otw_type_t::BO_NATIVE;
+ otw_type.width = 16;
+
+ const size_t nsamps = 13;
+ std::vector<fc32_t> input(nsamps);
+ BOOST_FOREACH(fc32_t &in, input) in = fc32_t(
+ (std::rand()/float(RAND_MAX/2)) - 1,
+ (std::rand()/float(RAND_MAX/2)) - 1
+ );
+ std::vector<boost::uint32_t> interm(nsamps);
+ std::vector<sc16_t> output(nsamps);
+
+ convert::input_type input0(1, &input[0]), input1(1, &interm[0]);
+ convert::output_type output0(1, &interm[0]), output1(1, &output[0]);
+
+ //convert float to intermediate
+ convert::io_type_to_otw_type(
+ io_type_in, otw_type, input0, output0, nsamps
+ );
+
+ //convert intermediate to short
+ convert::otw_type_to_io_type(
+ io_type_out, otw_type, input1, output1, nsamps
+ );
+
+ //test that the inputs and outputs match
+ for (size_t i = 0; i < nsamps; i++){
+ MY_CHECK_CLOSE(input[i].real(), output[i].real()/float(32767), float(0.01));
+ MY_CHECK_CLOSE(input[i].imag(), output[i].imag()/float(32767), float(0.01));
+ }
+}
+
+/***********************************************************************
+ * Test short to float conversion loopback
+ **********************************************************************/
+BOOST_AUTO_TEST_CASE(test_convert_types_sc16_to_fc32){
+ io_type_t io_type_in(io_type_t::COMPLEX_INT16);
+ io_type_t io_type_out(io_type_t::COMPLEX_FLOAT32);
+
+ otw_type_t otw_type;
+ otw_type.byteorder = otw_type_t::BO_NATIVE;
+ otw_type.width = 16;
+
+ const size_t nsamps = 13;
+ std::vector<sc16_t> input(nsamps);
+ BOOST_FOREACH(sc16_t &in, input) in = sc16_t(
+ std::rand()-(RAND_MAX/2),
+ std::rand()-(RAND_MAX/2)
+ );
+ std::vector<boost::uint32_t> interm(nsamps);
+ std::vector<fc32_t> output(nsamps);
+
+ convert::input_type input0(1, &input[0]), input1(1, &interm[0]);
+ convert::output_type output0(1, &interm[0]), output1(1, &output[0]);
+
+ //convert short to intermediate
+ convert::io_type_to_otw_type(
+ io_type_in, otw_type, input0, output0, nsamps
+ );
+
+ //convert intermediate to float
+ convert::otw_type_to_io_type(
+ io_type_out, otw_type, input1, output1, nsamps
+ );
+
+ //test that the inputs and outputs match
+ for (size_t i = 0; i < nsamps; i++){
+ MY_CHECK_CLOSE(input[i].real()/float(32767), output[i].real(), float(0.01));
+ MY_CHECK_CLOSE(input[i].imag()/float(32767), output[i].imag(), float(0.01));
+ }
+}
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