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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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 | |
19 | */ | |
20 | ||
21 | #include <extdef.h> | |
22 | ||
23 | #define __STDC_LIMIT_MACROS | |
24 | #include <stdint.h> | |
25 | ||
26 | #include <boost/test/unit_test.hpp> | |
27 | ||
28 | #include "../../pv/data/analogsnapshot.h" | |
29 | ||
30 | using pv::data::AnalogSnapshot; | |
31 | ||
32 | BOOST_AUTO_TEST_SUITE(AnalogSnapshotTest) | |
33 | ||
34 | void push_analog(AnalogSnapshot &s, unsigned int num_samples, | |
35 | float value) | |
36 | { | |
37 | sr_datafeed_analog analog; | |
38 | analog.num_samples = num_samples; | |
39 | ||
40 | float *data = new float[num_samples]; | |
41 | analog.data = data; | |
42 | while(num_samples-- != 0) | |
43 | *data++ = value; | |
44 | ||
45 | s.append_payload(analog); | |
46 | delete[] (float*)analog.data; | |
47 | } | |
48 | ||
49 | BOOST_AUTO_TEST_CASE(Basic) | |
50 | { | |
51 | // Create an empty AnalogSnapshot object | |
52 | sr_datafeed_analog analog; | |
53 | analog.num_samples = 0; | |
54 | analog.data = NULL; | |
55 | ||
56 | AnalogSnapshot s(analog); | |
57 | ||
58 | //----- Test AnalogSnapshot::push_analog -----// | |
59 | ||
60 | BOOST_CHECK(s.get_sample_count() == 0); | |
61 | for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++) | |
62 | { | |
63 | const AnalogSnapshot::Envelope &m = s._envelope_levels[i]; | |
64 | BOOST_CHECK_EQUAL(m.length, 0); | |
65 | BOOST_CHECK_EQUAL(m.data_length, 0); | |
66 | BOOST_CHECK(m.samples == NULL); | |
67 | } | |
68 | ||
69 | // Push 8 samples of all zeros | |
70 | push_analog(s, 8, 0.0f); | |
71 | ||
72 | BOOST_CHECK(s.get_sample_count() == 8); | |
73 | ||
74 | // There should not be enough samples to have a single mip map sample | |
75 | for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++) | |
76 | { | |
77 | const AnalogSnapshot::Envelope &m = s._envelope_levels[i]; | |
78 | BOOST_CHECK_EQUAL(m.length, 0); | |
79 | BOOST_CHECK_EQUAL(m.data_length, 0); | |
80 | BOOST_CHECK(m.samples == NULL); | |
81 | } | |
82 | ||
83 | // Push 8 samples of 1.0s to bring the total up to 16 | |
84 | push_analog(s, 8, 1.0f); | |
85 | ||
86 | // There should now be enough data for exactly one sample | |
87 | // in mip map level 0, and that sample should be 0 | |
88 | const AnalogSnapshot::Envelope &e0 = s._envelope_levels[0]; | |
89 | BOOST_CHECK_EQUAL(e0.length, 1); | |
90 | BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit); | |
91 | BOOST_REQUIRE(e0.samples != NULL); | |
92 | BOOST_CHECK_EQUAL(e0.samples[0].min, 0.0f); | |
93 | BOOST_CHECK_EQUAL(e0.samples[0].max, 1.0f); | |
94 | ||
95 | // The higher levels should still be empty | |
96 | for (unsigned int i = 1; i < AnalogSnapshot::ScaleStepCount; i++) | |
97 | { | |
98 | const AnalogSnapshot::Envelope &m = s._envelope_levels[i]; | |
99 | BOOST_CHECK_EQUAL(m.length, 0); | |
100 | BOOST_CHECK_EQUAL(m.data_length, 0); | |
101 | BOOST_CHECK(m.samples == NULL); | |
102 | } | |
103 | ||
104 | // Push 240 samples of all zeros to bring the total up to 256 | |
105 | push_analog(s, 240, -1.0f); | |
106 | ||
107 | BOOST_CHECK_EQUAL(e0.length, 16); | |
108 | BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit); | |
109 | ||
110 | for (unsigned int i = 1; i < e0.length; i++) { | |
111 | BOOST_CHECK_EQUAL(e0.samples[i].min, -1.0f); | |
112 | BOOST_CHECK_EQUAL(e0.samples[i].max, -1.0f); | |
113 | } | |
114 | ||
115 | const AnalogSnapshot::Envelope &e1 = s._envelope_levels[1]; | |
116 | BOOST_CHECK_EQUAL(e1.length, 1); | |
117 | BOOST_CHECK_EQUAL(e1.data_length, AnalogSnapshot::EnvelopeDataUnit); | |
118 | BOOST_REQUIRE(e1.samples != NULL); | |
119 | BOOST_CHECK_EQUAL(e1.samples[0].min, -1.0f); | |
120 | BOOST_CHECK_EQUAL(e1.samples[0].max, 1.0f); | |
121 | } | |
122 | ||
123 | BOOST_AUTO_TEST_SUITE_END() |