2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 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
25 #include "logicsignal.h"
28 #include "pv/sigsession.h"
29 #include "pv/data/logic.h"
30 #include "pv/data/logicsnapshot.h"
31 #include "pv/view/view.h"
33 using namespace boost;
39 const float LogicSignal::Oversampling = 2.0f;
41 const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
42 const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
43 const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
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
58 LogicSignal::LogicSignal(pv::SigSession &session, const sr_probe *const probe,
59 shared_ptr<data::Logic> data) :
60 Signal(session, probe),
63 _trigger_rising(NULL),
65 _trigger_falling(NULL),
69 _colour = SignalColours[probe->index % countof(SignalColours)];
72 LogicSignal::~LogicSignal()
76 boost::shared_ptr<pv::data::Logic> LogicSignal::data() const
81 void LogicSignal::paint_back(QPainter &p, int left, int right)
84 paint_axis(p, get_y(), left, right);
87 void LogicSignal::paint_mid(QPainter &p, int left, int right)
93 vector< pair<int64_t, bool> > edges;
97 assert(right >= left);
100 const int y = _v_offset - _view->v_offset();
102 const double scale = _view->scale();
105 const double offset = _view->offset();
107 if (!_probe->enabled)
110 const float high_offset = y - View::SignalHeight + 0.5f;
111 const float low_offset = y + 0.5f;
113 const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
114 _data->get_snapshots();
115 if (snapshots.empty())
118 const shared_ptr<pv::data::LogicSnapshot> &snapshot =
121 double samplerate = _data->get_samplerate();
123 // Show sample rate as 1Hz when it is unknown
124 if (samplerate == 0.0)
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);
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);
141 const unsigned int edge_count = edges.size() - 2;
142 QLineF *const edge_lines = new QLineF[edge_count];
145 for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i =
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);
153 p.setPen(EdgeColour);
154 p.drawLines(edge_lines, edge_count);
158 const unsigned int max_cap_line_count = (edges.size() - 1);
159 QLineF *const cap_lines = new QLineF[max_cap_line_count];
161 p.setPen(HighColour);
162 paint_caps(p, cap_lines, edges, true, samples_per_pixel,
163 pixels_offset, left, high_offset);
165 paint_caps(p, cap_lines, edges, false, samples_per_pixel,
166 pixels_offset, left, low_offset);
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,
176 QLineF *line = lines;
178 for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i =
179 edges.begin(); i != (edges.end() - 1); i++)
180 if ((*i).second == level) {
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);
188 p.drawLines(lines, line - lines);
191 void LogicSignal::update_trigger_actions()
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');
203 void LogicSignal::set_trigger(char type)
205 const char trigger_type_string[2] = {type, 0};
206 const char *const trigger_string =
207 (type != 0) ? trigger_type_string : NULL;
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);
213 assert(_probe && _probe->index < probe_count);
215 for (int i = 0; i < probe_count; i++) {
216 sr_dev_trigger_set(sdi, i, (i == _probe->index) ?
217 trigger_string : NULL);
220 update_trigger_actions();
223 void LogicSignal::on_trigger_none()
228 void LogicSignal::on_trigger_rising()
233 void LogicSignal::on_trigger_high()
238 void LogicSignal::on_trigger_falling()
243 void LogicSignal::on_trigger_low()
248 void LogicSignal::on_trigger_change()