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340bc0a4 JH |
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 | ||
340bc0a4 JH |
23 | #include <stdint.h> |
24 | ||
25 | #include <boost/test/unit_test.hpp> | |
26 | ||
27 | #include "../../pv/data/analogsnapshot.h" | |
28 | ||
340bc0a4 JH |
29 | using pv::data::AnalogSnapshot; |
30 | ||
31 | BOOST_AUTO_TEST_SUITE(AnalogSnapshotTest) | |
32 | ||
33 | void push_analog(AnalogSnapshot &s, unsigned int num_samples, | |
34 | float value) | |
35 | { | |
36 | sr_datafeed_analog analog; | |
37 | analog.num_samples = num_samples; | |
38 | ||
39 | float *data = new float[num_samples]; | |
40 | analog.data = data; | |
41 | while(num_samples-- != 0) | |
42 | *data++ = value; | |
43 | ||
44 | s.append_payload(analog); | |
45 | delete[] (float*)analog.data; | |
46 | } | |
47 | ||
48 | BOOST_AUTO_TEST_CASE(Basic) | |
49 | { | |
50 | // Create an empty AnalogSnapshot object | |
51 | sr_datafeed_analog analog; | |
52 | analog.num_samples = 0; | |
53 | analog.data = NULL; | |
54 | ||
55 | AnalogSnapshot s(analog); | |
56 | ||
57 | //----- Test AnalogSnapshot::push_analog -----// | |
58 | ||
59 | BOOST_CHECK(s.get_sample_count() == 0); | |
60 | for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++) | |
61 | { | |
62 | const AnalogSnapshot::Envelope &m = s._envelope_levels[i]; | |
63 | BOOST_CHECK_EQUAL(m.length, 0); | |
64 | BOOST_CHECK_EQUAL(m.data_length, 0); | |
65 | BOOST_CHECK(m.samples == NULL); | |
66 | } | |
67 | ||
68 | // Push 8 samples of all zeros | |
69 | push_analog(s, 8, 0.0f); | |
70 | ||
71 | BOOST_CHECK(s.get_sample_count() == 8); | |
72 | ||
73 | // There should not be enough samples to have a single mip map sample | |
74 | for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++) | |
75 | { | |
76 | const AnalogSnapshot::Envelope &m = s._envelope_levels[i]; | |
77 | BOOST_CHECK_EQUAL(m.length, 0); | |
78 | BOOST_CHECK_EQUAL(m.data_length, 0); | |
79 | BOOST_CHECK(m.samples == NULL); | |
80 | } | |
81 | ||
82 | // Push 8 samples of 1.0s to bring the total up to 16 | |
83 | push_analog(s, 8, 1.0f); | |
84 | ||
85 | // There should now be enough data for exactly one sample | |
86 | // in mip map level 0, and that sample should be 0 | |
87 | const AnalogSnapshot::Envelope &e0 = s._envelope_levels[0]; | |
88 | BOOST_CHECK_EQUAL(e0.length, 1); | |
89 | BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit); | |
90 | BOOST_REQUIRE(e0.samples != NULL); | |
91 | BOOST_CHECK_EQUAL(e0.samples[0].min, 0.0f); | |
92 | BOOST_CHECK_EQUAL(e0.samples[0].max, 1.0f); | |
93 | ||
94 | // The higher levels should still be empty | |
95 | for (unsigned int i = 1; i < AnalogSnapshot::ScaleStepCount; i++) | |
96 | { | |
97 | const AnalogSnapshot::Envelope &m = s._envelope_levels[i]; | |
98 | BOOST_CHECK_EQUAL(m.length, 0); | |
99 | BOOST_CHECK_EQUAL(m.data_length, 0); | |
100 | BOOST_CHECK(m.samples == NULL); | |
101 | } | |
102 | ||
103 | // Push 240 samples of all zeros to bring the total up to 256 | |
104 | push_analog(s, 240, -1.0f); | |
105 | ||
106 | BOOST_CHECK_EQUAL(e0.length, 16); | |
107 | BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit); | |
108 | ||
109 | for (unsigned int i = 1; i < e0.length; i++) { | |
110 | BOOST_CHECK_EQUAL(e0.samples[i].min, -1.0f); | |
111 | BOOST_CHECK_EQUAL(e0.samples[i].max, -1.0f); | |
112 | } | |
113 | ||
114 | const AnalogSnapshot::Envelope &e1 = s._envelope_levels[1]; | |
115 | BOOST_CHECK_EQUAL(e1.length, 1); | |
116 | BOOST_CHECK_EQUAL(e1.data_length, AnalogSnapshot::EnvelopeDataUnit); | |
117 | BOOST_REQUIRE(e1.samples != NULL); | |
118 | BOOST_CHECK_EQUAL(e1.samples[0].min, -1.0f); | |
119 | BOOST_CHECK_EQUAL(e1.samples[0].max, 1.0f); | |
120 | } | |
121 | ||
122 | BOOST_AUTO_TEST_SUITE_END() |