2 * This file is part of the PulseView project.
4 * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #define __STDC_LIMIT_MACROS
26 #include <boost/test/unit_test.hpp>
28 #include "../../pv/data/analogsnapshot.h"
32 using pv::data::AnalogSnapshot;
34 BOOST_AUTO_TEST_SUITE(AnalogSnapshotTest)
36 void push_analog(AnalogSnapshot &s, unsigned int num_samples,
39 sr_datafeed_analog analog;
40 analog.num_samples = num_samples;
42 float *data = new float[num_samples];
44 while(num_samples-- != 0)
47 s.append_payload(analog);
48 delete[] (float*)analog.data;
51 BOOST_AUTO_TEST_CASE(Basic)
53 // Create an empty AnalogSnapshot object
54 sr_datafeed_analog analog;
55 analog.num_samples = 0;
58 AnalogSnapshot s(analog);
60 //----- Test AnalogSnapshot::push_analog -----//
62 BOOST_CHECK(s.get_sample_count() == 0);
63 for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++)
65 const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
66 BOOST_CHECK_EQUAL(m.length, 0);
67 BOOST_CHECK_EQUAL(m.data_length, 0);
68 BOOST_CHECK(m.samples == NULL);
71 // Push 8 samples of all zeros
72 push_analog(s, 8, 0.0f);
74 BOOST_CHECK(s.get_sample_count() == 8);
76 // There should not be enough samples to have a single mip map sample
77 for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++)
79 const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
80 BOOST_CHECK_EQUAL(m.length, 0);
81 BOOST_CHECK_EQUAL(m.data_length, 0);
82 BOOST_CHECK(m.samples == NULL);
85 // Push 8 samples of 1.0s to bring the total up to 16
86 push_analog(s, 8, 1.0f);
88 // There should now be enough data for exactly one sample
89 // in mip map level 0, and that sample should be 0
90 const AnalogSnapshot::Envelope &e0 = s._envelope_levels[0];
91 BOOST_CHECK_EQUAL(e0.length, 1);
92 BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit);
93 BOOST_REQUIRE(e0.samples != NULL);
94 BOOST_CHECK_EQUAL(e0.samples[0].min, 0.0f);
95 BOOST_CHECK_EQUAL(e0.samples[0].max, 1.0f);
97 // The higher levels should still be empty
98 for (unsigned int i = 1; i < AnalogSnapshot::ScaleStepCount; i++)
100 const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
101 BOOST_CHECK_EQUAL(m.length, 0);
102 BOOST_CHECK_EQUAL(m.data_length, 0);
103 BOOST_CHECK(m.samples == NULL);
106 // Push 240 samples of all zeros to bring the total up to 256
107 push_analog(s, 240, -1.0f);
109 BOOST_CHECK_EQUAL(e0.length, 16);
110 BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit);
112 for (unsigned int i = 1; i < e0.length; i++) {
113 BOOST_CHECK_EQUAL(e0.samples[i].min, -1.0f);
114 BOOST_CHECK_EQUAL(e0.samples[i].max, -1.0f);
117 const AnalogSnapshot::Envelope &e1 = s._envelope_levels[1];
118 BOOST_CHECK_EQUAL(e1.length, 1);
119 BOOST_CHECK_EQUAL(e1.data_length, AnalogSnapshot::EnvelopeDataUnit);
120 BOOST_REQUIRE(e1.samples != NULL);
121 BOOST_CHECK_EQUAL(e1.samples[0].min, -1.0f);
122 BOOST_CHECK_EQUAL(e1.samples[0].max, 1.0f);
125 BOOST_AUTO_TEST_SUITE_END()