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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 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 | #include <math.h> | |
24 | ||
25 | #include "logicsignal.h" | |
26 | #include "view.h" | |
27 | ||
28 | #include "pv/sigsession.h" | |
29 | #include "pv/data/logic.h" | |
30 | #include "pv/data/logicsnapshot.h" | |
31 | #include "pv/view/view.h" | |
32 | ||
33 | using namespace boost; | |
34 | using namespace std; | |
35 | ||
36 | namespace pv { | |
37 | namespace view { | |
38 | ||
39 | const float LogicSignal::Oversampling = 2.0f; | |
40 | ||
41 | const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80); | |
42 | const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00); | |
43 | const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00); | |
44 | ||
45 | const QColor LogicSignal::SignalColours[10] = { | |
46 | QColor(0x16, 0x19, 0x1A), // Black | |
47 | QColor(0x8F, 0x52, 0x02), // Brown | |
48 | QColor(0xCC, 0x00, 0x00), // Red | |
49 | QColor(0xF5, 0x79, 0x00), // Orange | |
50 | QColor(0xED, 0xD4, 0x00), // Yellow | |
51 | QColor(0x73, 0xD2, 0x16), // Green | |
52 | QColor(0x34, 0x65, 0xA4), // Blue | |
53 | QColor(0x75, 0x50, 0x7B), // Violet | |
54 | QColor(0x88, 0x8A, 0x85), // Grey | |
55 | QColor(0xEE, 0xEE, 0xEC), // White | |
56 | }; | |
57 | ||
58 | LogicSignal::LogicSignal(pv::SigSession &session, const sr_probe *const probe, | |
59 | shared_ptr<data::Logic> data) : | |
60 | Signal(session, probe), | |
61 | _data(data), | |
62 | _trigger_none(NULL), | |
63 | _trigger_rising(NULL), | |
64 | _trigger_high(NULL), | |
65 | _trigger_falling(NULL), | |
66 | _trigger_low(NULL), | |
67 | _trigger_change(NULL) | |
68 | { | |
69 | _colour = SignalColours[probe->index % countof(SignalColours)]; | |
70 | } | |
71 | ||
72 | LogicSignal::~LogicSignal() | |
73 | { | |
74 | } | |
75 | ||
76 | boost::shared_ptr<pv::data::Logic> LogicSignal::data() const | |
77 | { | |
78 | return _data; | |
79 | } | |
80 | ||
81 | void LogicSignal::paint_back(QPainter &p, int left, int right) | |
82 | { | |
83 | if (_probe->enabled) | |
84 | paint_axis(p, get_y(), left, right); | |
85 | } | |
86 | ||
87 | void LogicSignal::paint_mid(QPainter &p, int left, int right) | |
88 | { | |
89 | using pv::view::View; | |
90 | ||
91 | QLineF *line; | |
92 | ||
93 | vector< pair<int64_t, bool> > edges; | |
94 | ||
95 | assert(_probe); | |
96 | assert(_data); | |
97 | assert(right >= left); | |
98 | ||
99 | assert(_view); | |
100 | const int y = _v_offset - _view->v_offset(); | |
101 | ||
102 | const double scale = _view->scale(); | |
103 | assert(scale > 0); | |
104 | ||
105 | const double offset = _view->offset(); | |
106 | ||
107 | if (!_probe->enabled) | |
108 | return; | |
109 | ||
110 | const float high_offset = y - View::SignalHeight + 0.5f; | |
111 | const float low_offset = y + 0.5f; | |
112 | ||
113 | const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots = | |
114 | _data->get_snapshots(); | |
115 | if (snapshots.empty()) | |
116 | return; | |
117 | ||
118 | const shared_ptr<pv::data::LogicSnapshot> &snapshot = | |
119 | snapshots.front(); | |
120 | ||
121 | double samplerate = _data->get_samplerate(); | |
122 | ||
123 | // Show sample rate as 1Hz when it is unknown | |
124 | if (samplerate == 0.0) | |
125 | samplerate = 1.0; | |
126 | ||
127 | const double pixels_offset = offset / scale; | |
128 | const double start_time = _data->get_start_time(); | |
129 | const int64_t last_sample = snapshot->get_sample_count() - 1; | |
130 | const double samples_per_pixel = samplerate * scale; | |
131 | const double start = samplerate * (offset - start_time); | |
132 | const double end = start + samples_per_pixel * (right - left); | |
133 | ||
134 | snapshot->get_subsampled_edges(edges, | |
135 | min(max((int64_t)floor(start), (int64_t)0), last_sample), | |
136 | min(max((int64_t)ceil(end), (int64_t)0), last_sample), | |
137 | samples_per_pixel / Oversampling, _probe->index); | |
138 | assert(edges.size() >= 2); | |
139 | ||
140 | // Paint the edges | |
141 | const unsigned int edge_count = edges.size() - 2; | |
142 | QLineF *const edge_lines = new QLineF[edge_count]; | |
143 | line = edge_lines; | |
144 | ||
145 | for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i = | |
146 | edges.begin() + 1; | |
147 | i != edges.end() - 1; i++) { | |
148 | const float x = ((*i).first / samples_per_pixel - | |
149 | pixels_offset) + left; | |
150 | *line++ = QLineF(x, high_offset, x, low_offset); | |
151 | } | |
152 | ||
153 | p.setPen(EdgeColour); | |
154 | p.drawLines(edge_lines, edge_count); | |
155 | delete[] edge_lines; | |
156 | ||
157 | // Paint the caps | |
158 | const unsigned int max_cap_line_count = (edges.size() - 1); | |
159 | QLineF *const cap_lines = new QLineF[max_cap_line_count]; | |
160 | ||
161 | p.setPen(HighColour); | |
162 | paint_caps(p, cap_lines, edges, true, samples_per_pixel, | |
163 | pixels_offset, left, high_offset); | |
164 | p.setPen(LowColour); | |
165 | paint_caps(p, cap_lines, edges, false, samples_per_pixel, | |
166 | pixels_offset, left, low_offset); | |
167 | ||
168 | delete[] cap_lines; | |
169 | } | |
170 | ||
171 | void LogicSignal::paint_caps(QPainter &p, QLineF *const lines, | |
172 | vector< pair<int64_t, bool> > &edges, bool level, | |
173 | double samples_per_pixel, double pixels_offset, float x_offset, | |
174 | float y_offset) | |
175 | { | |
176 | QLineF *line = lines; | |
177 | ||
178 | for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i = | |
179 | edges.begin(); i != (edges.end() - 1); i++) | |
180 | if ((*i).second == level) { | |
181 | *line++ = QLineF( | |
182 | ((*i).first / samples_per_pixel - | |
183 | pixels_offset) + x_offset, y_offset, | |
184 | ((*(i+1)).first / samples_per_pixel - | |
185 | pixels_offset) + x_offset, y_offset); | |
186 | } | |
187 | ||
188 | p.drawLines(lines, line - lines); | |
189 | } | |
190 | ||
191 | void LogicSignal::update_trigger_actions() | |
192 | { | |
193 | const char cur_trigger = _probe->trigger ? | |
194 | _probe->trigger[0] : '\0'; | |
195 | _trigger_none->setChecked(cur_trigger == '\0'); | |
196 | _trigger_rising->setChecked(cur_trigger == 'r'); | |
197 | _trigger_high->setChecked(cur_trigger == '1'); | |
198 | _trigger_falling->setChecked(cur_trigger == 'f'); | |
199 | _trigger_low->setChecked(cur_trigger == '0'); | |
200 | _trigger_change->setChecked(cur_trigger == 'c'); | |
201 | } | |
202 | ||
203 | void LogicSignal::set_trigger(char type) | |
204 | { | |
205 | const char trigger_type_string[2] = {type, 0}; | |
206 | const char *const trigger_string = | |
207 | (type != 0) ? trigger_type_string : NULL; | |
208 | ||
209 | const sr_dev_inst *const sdi = _session.get_device(); | |
210 | const int probe_count = g_slist_length(sdi->probes); | |
211 | assert(probe_count > 0); | |
212 | ||
213 | assert(_probe && _probe->index < probe_count); | |
214 | ||
215 | for (int i = 0; i < probe_count; i++) { | |
216 | sr_dev_trigger_set(sdi, i, (i == _probe->index) ? | |
217 | trigger_string : NULL); | |
218 | } | |
219 | ||
220 | update_trigger_actions(); | |
221 | } | |
222 | ||
223 | void LogicSignal::on_trigger_none() | |
224 | { | |
225 | set_trigger('\0'); | |
226 | } | |
227 | ||
228 | void LogicSignal::on_trigger_rising() | |
229 | { | |
230 | set_trigger('r'); | |
231 | } | |
232 | ||
233 | void LogicSignal::on_trigger_high() | |
234 | { | |
235 | set_trigger('1'); | |
236 | } | |
237 | ||
238 | void LogicSignal::on_trigger_falling() | |
239 | { | |
240 | set_trigger('f'); | |
241 | } | |
242 | ||
243 | void LogicSignal::on_trigger_low() | |
244 | { | |
245 | set_trigger('0'); | |
246 | } | |
247 | ||
248 | void LogicSignal::on_trigger_change() | |
249 | { | |
250 | set_trigger('c'); | |
251 | } | |
252 | ||
253 | } // namespace view | |
254 | } // namespace pv |