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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 <QFormLayout>
26#include <QToolBar>
27
28#include "logicsignal.h"
29#include "view.h"
30
31#include "pv/sigsession.h"
32#include "pv/data/logic.h"
33#include "pv/data/logicsnapshot.h"
34#include "pv/view/view.h"
35
36using namespace boost;
37using namespace std;
38
39namespace pv {
40namespace view {
41
42const float LogicSignal::Oversampling = 2.0f;
43
44const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
45const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
46const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
47
48const QColor LogicSignal::SignalColours[10] = {
49 QColor(0x16, 0x19, 0x1A), // Black
50 QColor(0x8F, 0x52, 0x02), // Brown
51 QColor(0xCC, 0x00, 0x00), // Red
52 QColor(0xF5, 0x79, 0x00), // Orange
53 QColor(0xED, 0xD4, 0x00), // Yellow
54 QColor(0x73, 0xD2, 0x16), // Green
55 QColor(0x34, 0x65, 0xA4), // Blue
56 QColor(0x75, 0x50, 0x7B), // Violet
57 QColor(0x88, 0x8A, 0x85), // Grey
58 QColor(0xEE, 0xEE, 0xEC), // White
59};
60
61LogicSignal::LogicSignal(pv::SigSession &session, sr_probe *const probe,
62 shared_ptr<data::Logic> data) :
63 Signal(session, probe),
64 _data(data),
65 _trigger_none(NULL),
66 _trigger_rising(NULL),
67 _trigger_high(NULL),
68 _trigger_falling(NULL),
69 _trigger_low(NULL),
70 _trigger_change(NULL)
71{
72 _colour = SignalColours[probe->index % countof(SignalColours)];
73}
74
75LogicSignal::~LogicSignal()
76{
77}
78
79boost::shared_ptr<pv::data::SignalData> LogicSignal::data() const
80{
81 return _data;
82}
83
84boost::shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
85{
86 return _data;
87}
88
89void LogicSignal::paint_back(QPainter &p, int left, int right)
90{
91 if (_probe->enabled)
92 paint_axis(p, get_y(), left, right);
93}
94
95void LogicSignal::paint_mid(QPainter &p, int left, int right)
96{
97 using pv::view::View;
98
99 QLineF *line;
100
101 vector< pair<int64_t, bool> > edges;
102
103 assert(_probe);
104 assert(_data);
105 assert(right >= left);
106
107 assert(_view);
108 const int y = _v_offset - _view->v_offset();
109
110 const double scale = _view->scale();
111 assert(scale > 0);
112
113 const double offset = _view->offset();
114
115 if (!_probe->enabled)
116 return;
117
118 const float high_offset = y - View::SignalHeight + 0.5f;
119 const float low_offset = y + 0.5f;
120
121 const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
122 _data->get_snapshots();
123 if (snapshots.empty())
124 return;
125
126 const shared_ptr<pv::data::LogicSnapshot> &snapshot =
127 snapshots.front();
128
129 double samplerate = _data->samplerate();
130
131 // Show sample rate as 1Hz when it is unknown
132 if (samplerate == 0.0)
133 samplerate = 1.0;
134
135 const double pixels_offset = offset / scale;
136 const double start_time = _data->get_start_time();
137 const int64_t last_sample = snapshot->get_sample_count() - 1;
138 const double samples_per_pixel = samplerate * scale;
139 const double start = samplerate * (offset - start_time);
140 const double end = start + samples_per_pixel * (right - left);
141
142 snapshot->get_subsampled_edges(edges,
143 min(max((int64_t)floor(start), (int64_t)0), last_sample),
144 min(max((int64_t)ceil(end), (int64_t)0), last_sample),
145 samples_per_pixel / Oversampling, _probe->index);
146 assert(edges.size() >= 2);
147
148 // Paint the edges
149 const unsigned int edge_count = edges.size() - 2;
150 QLineF *const edge_lines = new QLineF[edge_count];
151 line = edge_lines;
152
153 for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i =
154 edges.begin() + 1;
155 i != edges.end() - 1; i++) {
156 const float x = ((*i).first / samples_per_pixel -
157 pixels_offset) + left;
158 *line++ = QLineF(x, high_offset, x, low_offset);
159 }
160
161 p.setPen(EdgeColour);
162 p.drawLines(edge_lines, edge_count);
163 delete[] edge_lines;
164
165 // Paint the caps
166 const unsigned int max_cap_line_count = (edges.size() - 1);
167 QLineF *const cap_lines = new QLineF[max_cap_line_count];
168
169 p.setPen(HighColour);
170 paint_caps(p, cap_lines, edges, true, samples_per_pixel,
171 pixels_offset, left, high_offset);
172 p.setPen(LowColour);
173 paint_caps(p, cap_lines, edges, false, samples_per_pixel,
174 pixels_offset, left, low_offset);
175
176 delete[] cap_lines;
177}
178
179void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
180 vector< pair<int64_t, bool> > &edges, bool level,
181 double samples_per_pixel, double pixels_offset, float x_offset,
182 float y_offset)
183{
184 QLineF *line = lines;
185
186 for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i =
187 edges.begin(); i != (edges.end() - 1); i++)
188 if ((*i).second == level) {
189 *line++ = QLineF(
190 ((*i).first / samples_per_pixel -
191 pixels_offset) + x_offset, y_offset,
192 ((*(i+1)).first / samples_per_pixel -
193 pixels_offset) + x_offset, y_offset);
194 }
195
196 p.drawLines(lines, line - lines);
197}
198
199void LogicSignal::init_trigger_actions(QWidget *parent)
200{
201 _trigger_none = new QAction(QIcon(":/icons/trigger-none.svg"),
202 tr("No trigger"), parent);
203 _trigger_none->setCheckable(true);
204 connect(_trigger_none, SIGNAL(triggered()),
205 this, SLOT(on_trigger_none()));
206
207 _trigger_rising = new QAction(QIcon(":/icons/trigger-rising.svg"),
208 tr("Trigger on rising edge"), parent);
209 _trigger_rising->setCheckable(true);
210 connect(_trigger_rising, SIGNAL(triggered()),
211 this, SLOT(on_trigger_rising()));
212
213 _trigger_high = new QAction(QIcon(":/icons/trigger-high.svg"),
214 tr("Trigger on high level"), parent);
215 _trigger_high->setCheckable(true);
216 connect(_trigger_high, SIGNAL(triggered()),
217 this, SLOT(on_trigger_high()));
218
219 _trigger_falling = new QAction(QIcon(":/icons/trigger-falling.svg"),
220 tr("Trigger on falling edge"), parent);
221 _trigger_falling->setCheckable(true);
222 connect(_trigger_falling, SIGNAL(triggered()),
223 this, SLOT(on_trigger_falling()));
224
225 _trigger_low = new QAction(QIcon(":/icons/trigger-low.svg"),
226 tr("Trigger on low level"), parent);
227 _trigger_low->setCheckable(true);
228 connect(_trigger_low, SIGNAL(triggered()),
229 this, SLOT(on_trigger_low()));
230
231 _trigger_change = new QAction(QIcon(":/icons/trigger-change.svg"),
232 tr("Trigger on rising or falling edge"), parent);
233 _trigger_change->setCheckable(true);
234 connect(_trigger_change, SIGNAL(triggered()),
235 this, SLOT(on_trigger_change()));
236}
237
238void LogicSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
239{
240 GVariant *gvar;
241
242 Signal::populate_popup_form(parent, form);
243
244 // Add the trigger actions
245 const sr_dev_inst *const sdi = _session.get_device();
246 if (sr_config_list(sdi->driver, sdi, NULL, SR_CONF_TRIGGER_TYPE,
247 &gvar) == SR_OK)
248 {
249 const char *const trig_types =
250 g_variant_get_string(gvar, NULL);
251
252 if (trig_types && trig_types[0] != '\0')
253 {
254 _trigger_bar = new QToolBar(parent);
255
256 init_trigger_actions(_trigger_bar);
257 _trigger_bar->addAction(_trigger_none);
258 add_trigger_action(trig_types, 'r', _trigger_rising);
259 add_trigger_action(trig_types, '1', _trigger_high);
260 add_trigger_action(trig_types, 'f', _trigger_falling);
261 add_trigger_action(trig_types, '0', _trigger_low);
262 add_trigger_action(trig_types, 'c', _trigger_change);
263
264 update_trigger_actions();
265
266 form->addRow(tr("Trigger"), _trigger_bar);
267 }
268
269 g_variant_unref(gvar);
270 }
271}
272
273void LogicSignal::add_trigger_action(const char *trig_types, char type,
274 QAction *action)
275{
276 while(*trig_types)
277 if(*trig_types++ == type) {
278 _trigger_bar->addAction(action);
279 break;
280 }
281}
282
283void LogicSignal::update_trigger_actions()
284{
285 const char cur_trigger = _probe->trigger ?
286 _probe->trigger[0] : '\0';
287 _trigger_none->setChecked(cur_trigger == '\0');
288 _trigger_rising->setChecked(cur_trigger == 'r');
289 _trigger_high->setChecked(cur_trigger == '1');
290 _trigger_falling->setChecked(cur_trigger == 'f');
291 _trigger_low->setChecked(cur_trigger == '0');
292 _trigger_change->setChecked(cur_trigger == 'c');
293}
294
295void LogicSignal::set_trigger(char type)
296{
297 const char trigger_type_string[2] = {type, 0};
298 const char *const trigger_string =
299 (type != 0) ? trigger_type_string : NULL;
300
301 const sr_dev_inst *const sdi = _session.get_device();
302 const int probe_count = g_slist_length(sdi->probes);
303 assert(probe_count > 0);
304
305 assert(_probe && _probe->index < probe_count);
306
307 for (int i = 0; i < probe_count; i++) {
308 sr_dev_trigger_set(sdi, i, (i == _probe->index) ?
309 trigger_string : NULL);
310 }
311
312 update_trigger_actions();
313}
314
315void LogicSignal::on_trigger_none()
316{
317 set_trigger('\0');
318}
319
320void LogicSignal::on_trigger_rising()
321{
322 set_trigger('r');
323}
324
325void LogicSignal::on_trigger_high()
326{
327 set_trigger('1');
328}
329
330void LogicSignal::on_trigger_falling()
331{
332 set_trigger('f');
333}
334
335void LogicSignal::on_trigger_low()
336{
337 set_trigger('0');
338}
339
340void LogicSignal::on_trigger_change()
341{
342 set_trigger('c');
343}
344
345} // namespace view
346} // namespace pv