pv/view/logicsignal.cpp

   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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <extdef.h>
  21
  22 #include <cassert>
  23 #include <cmath>
  24
  25 #include <algorithm>
  26
  27 #include <QApplication>
  28 #include <QFormLayout>
  29 #include <QToolBar>
  30
  31 #include "logicsignal.hpp"
  32 #include "view.hpp"
  33
  34 #include <pv/session.hpp>
  35 #include <pv/devicemanager.hpp>
  36 #include <pv/devices/device.hpp>
  37 #include <pv/data/logic.hpp>
  38 #include <pv/data/logicsegment.hpp>
  39 #include <pv/data/signalbase.hpp>
  40 #include <pv/view/view.hpp>
  41
  42 #include <libsigrokcxx/libsigrokcxx.hpp>
  43
  44 using std::deque;
  45 using std::max;
  46 using std::make_pair;
  47 using std::min;
  48 using std::pair;
  49 using std::shared_ptr;
  50 using std::vector;
  51
  52 using sigrok::ConfigKey;
  53 using sigrok::Capability;
  54 using sigrok::Error;
  55 using sigrok::Trigger;
  56 using sigrok::TriggerStage;
  57 using sigrok::TriggerMatch;
  58 using sigrok::TriggerMatchType;
  59
  60 namespace pv {
  61 namespace views {
  62 namespace TraceView {
  63
  64 const float LogicSignal::Oversampling = 2.0f;
  65
  66 const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
  67 const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
  68 const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
  69
  70 const QColor LogicSignal::SignalColours[10] = {
  71         QColor(0x16, 0x19, 0x1A),       // Black
  72         QColor(0x8F, 0x52, 0x02),       // Brown
  73         QColor(0xCC, 0x00, 0x00),       // Red
  74         QColor(0xF5, 0x79, 0x00),       // Orange
  75         QColor(0xED, 0xD4, 0x00),       // Yellow
  76         QColor(0x73, 0xD2, 0x16),       // Green
  77         QColor(0x34, 0x65, 0xA4),       // Blue
  78         QColor(0x75, 0x50, 0x7B),       // Violet
  79         QColor(0x88, 0x8A, 0x85),       // Grey
  80         QColor(0xEE, 0xEE, 0xEC),       // White
  81 };
  82
  83 QColor LogicSignal::TriggerMarkerBackgroundColour = QColor(0xED, 0xD4, 0x00);
  84 const int LogicSignal::TriggerMarkerPadding = 2;
  85 const char* LogicSignal::TriggerMarkerIcons[8] = {
  86         nullptr,
  87         ":/icons/trigger-marker-low.svg",
  88         ":/icons/trigger-marker-high.svg",
  89         ":/icons/trigger-marker-rising.svg",
  90         ":/icons/trigger-marker-falling.svg",
  91         ":/icons/trigger-marker-change.svg",
  92         nullptr,
  93         nullptr
  94 };
  95
  96 QCache<QString, const QIcon> LogicSignal::icon_cache_;
  97 QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;
  98
  99 LogicSignal::LogicSignal(
 100         pv::Session &session,
 101         shared_ptr<devices::Device> device,
 102         shared_ptr<data::SignalBase> base) :
 103         Signal(session, base),
 104         signal_height_(QFontMetrics(QApplication::font()).height() * 2),
 105         device_(device),
 106         trigger_none_(nullptr),
 107         trigger_rising_(nullptr),
 108         trigger_high_(nullptr),
 109         trigger_falling_(nullptr),
 110         trigger_low_(nullptr),
 111         trigger_change_(nullptr)
 112 {
 113         shared_ptr<Trigger> trigger;
 114
 115         base_->set_colour(SignalColours[base->index() % countof(SignalColours)]);
 116
 117         /* Populate this channel's trigger setting with whatever we
 118          * find in the current session trigger, if anything. */
 119         trigger_match_ = nullptr;
 120         if ((trigger = session_.session()->trigger()))
 121                 for (auto stage : trigger->stages())
 122                         for (auto match : stage->matches())
 123                                 if (match->channel() == base_->channel())
 124                                         trigger_match_ = match->type();
 125 }
 126
 127 shared_ptr<pv::data::SignalData> LogicSignal::data() const
 128 {
 129         return base_->logic_data();
 130 }
 131
 132 shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
 133 {
 134         return base_->logic_data();
 135 }
 136
 137 std::pair<int, int> LogicSignal::v_extents() const
 138 {
 139         const int signal_margin =
 140                 QFontMetrics(QApplication::font()).height() / 2;
 141         return make_pair(-signal_height_ - signal_margin, signal_margin);
 142 }
 143
 144 int LogicSignal::scale_handle_offset() const
 145 {
 146         return -signal_height_;
 147 }
 148
 149 void LogicSignal::scale_handle_dragged(int offset)
 150 {
 151         const int font_height = QFontMetrics(QApplication::font()).height();
 152         const int units = (-offset / font_height);
 153         signal_height_ = ((units < 1) ? 1 : units) * font_height;
 154 }
 155
 156 void LogicSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp)
 157 {
 158         QLineF *line;
 159
 160         vector< pair<int64_t, bool> > edges;
 161
 162         assert(base_);
 163         assert(owner_);
 164
 165         const int y = get_visual_y();
 166
 167         if (!base_->enabled())
 168                 return;
 169
 170         const float high_offset = y - signal_height_ + 0.5f;
 171         const float low_offset = y + 0.5f;
 172
 173         const deque< shared_ptr<pv::data::LogicSegment> > &segments =
 174                 base_->logic_data()->logic_segments();
 175         if (segments.empty())
 176                 return;
 177
 178         const shared_ptr<pv::data::LogicSegment> &segment =
 179                 segments.front();
 180
 181         double samplerate = segment->samplerate();
 182
 183         // Show sample rate as 1Hz when it is unknown
 184         if (samplerate == 0.0)
 185                 samplerate = 1.0;
 186
 187         const double pixels_offset = pp.pixels_offset();
 188         const pv::util::Timestamp& start_time = segment->start_time();
 189         const int64_t last_sample = segment->get_sample_count() - 1;
 190         const double samples_per_pixel = samplerate * pp.scale();
 191         const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
 192         const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
 193
 194         const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
 195                 (int64_t)0), last_sample);
 196         const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
 197                 (int64_t)0), last_sample);
 198
 199         segment->get_subsampled_edges(edges, start_sample, end_sample,
 200                 samples_per_pixel / Oversampling, base_->index());
 201         assert(edges.size() >= 2);
 202
 203         // Paint the edges
 204         const unsigned int edge_count = edges.size() - 2;
 205         QLineF *const edge_lines = new QLineF[edge_count];
 206         line = edge_lines;
 207
 208         for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
 209                 const float x = ((*i).first / samples_per_pixel -
 210                         pixels_offset) + pp.left();
 211                 *line++ = QLineF(x, high_offset, x, low_offset);
 212         }
 213
 214         p.setPen(EdgeColour);
 215         p.drawLines(edge_lines, edge_count);
 216         delete[] edge_lines;
 217
 218         // Paint the caps
 219         const unsigned int max_cap_line_count = edges.size();
 220         QLineF *const cap_lines = new QLineF[max_cap_line_count];
 221
 222         p.setPen(HighColour);
 223         paint_caps(p, cap_lines, edges, true, samples_per_pixel,
 224                 pixels_offset, pp.left(), high_offset);
 225         p.setPen(LowColour);
 226         paint_caps(p, cap_lines, edges, false, samples_per_pixel,
 227                 pixels_offset, pp.left(), low_offset);
 228
 229         delete[] cap_lines;
 230 }
 231
 232 void LogicSignal::paint_fore(QPainter &p, const ViewItemPaintParams &pp)
 233 {
 234         // Draw the trigger marker
 235         if (!trigger_match_ || !base_->enabled())
 236                 return;
 237
 238         const int y = get_visual_y();
 239         const vector<int32_t> trig_types = get_trigger_types();
 240         for (int32_t type_id : trig_types) {
 241                 const TriggerMatchType *const type =
 242                         TriggerMatchType::get(type_id);
 243                 if (trigger_match_ != type || type_id < 0 ||
 244                         (size_t)type_id >= countof(TriggerMarkerIcons) ||
 245                         !TriggerMarkerIcons[type_id])
 246                         continue;
 247
 248                 const QPixmap *const pixmap = get_pixmap(
 249                         TriggerMarkerIcons[type_id]);
 250                 if (!pixmap)
 251                         continue;
 252
 253                 const float pad = TriggerMarkerPadding - 0.5f;
 254                 const QSize size = pixmap->size();
 255                 const QPoint point(
 256                         pp.right() - size.width() - pad * 2,
 257                         y - (signal_height_ + size.height()) / 2);
 258
 259                 p.setPen(QPen(TriggerMarkerBackgroundColour.darker()));
 260                 p.setBrush(TriggerMarkerBackgroundColour);
 261                 p.drawRoundedRect(QRectF(point, size).adjusted(
 262                         -pad, -pad, pad, pad), pad, pad);
 263                 p.drawPixmap(point, *pixmap);
 264
 265                 break;
 266         }
 267 }
 268
 269 void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
 270         vector< pair<int64_t, bool> > &edges, bool level,
 271         double samples_per_pixel, double pixels_offset, float x_offset,
 272         float y_offset)
 273 {
 274         QLineF *line = lines;
 275
 276         for (auto i = edges.begin(); i != (edges.end() - 1); i++)
 277                 if ((*i).second == level) {
 278                         *line++ = QLineF(
 279                                 ((*i).first / samples_per_pixel -
 280                                         pixels_offset) + x_offset, y_offset,
 281                                 ((*(i+1)).first / samples_per_pixel -
 282                                         pixels_offset) + x_offset, y_offset);
 283                 }
 284
 285         p.drawLines(lines, line - lines);
 286 }
 287
 288 void LogicSignal::init_trigger_actions(QWidget *parent)
 289 {
 290         trigger_none_ = new QAction(*get_icon(":/icons/trigger-none.svg"),
 291                 tr("No trigger"), parent);
 292         trigger_none_->setCheckable(true);
 293         connect(trigger_none_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 294
 295         trigger_rising_ = new QAction(*get_icon(":/icons/trigger-rising.svg"),
 296                 tr("Trigger on rising edge"), parent);
 297         trigger_rising_->setCheckable(true);
 298         connect(trigger_rising_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 299
 300         trigger_high_ = new QAction(*get_icon(":/icons/trigger-high.svg"),
 301                 tr("Trigger on high level"), parent);
 302         trigger_high_->setCheckable(true);
 303         connect(trigger_high_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 304
 305         trigger_falling_ = new QAction(*get_icon(":/icons/trigger-falling.svg"),
 306                 tr("Trigger on falling edge"), parent);
 307         trigger_falling_->setCheckable(true);
 308         connect(trigger_falling_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 309
 310         trigger_low_ = new QAction(*get_icon(":/icons/trigger-low.svg"),
 311                 tr("Trigger on low level"), parent);
 312         trigger_low_->setCheckable(true);
 313         connect(trigger_low_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 314
 315         trigger_change_ = new QAction(*get_icon(":/icons/trigger-change.svg"),
 316                 tr("Trigger on rising or falling edge"), parent);
 317         trigger_change_->setCheckable(true);
 318         connect(trigger_change_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 319 }
 320
 321 const vector<int32_t> LogicSignal::get_trigger_types() const
 322 {
 323         const auto sr_dev = device_->device();
 324         if (sr_dev->config_check(ConfigKey::TRIGGER_MATCH, Capability::LIST)) {
 325                 const Glib::VariantContainerBase gvar =
 326                         sr_dev->config_list(ConfigKey::TRIGGER_MATCH);
 327
 328                 vector<int32_t> ttypes;
 329
 330                 for (unsigned int i = 0; i < gvar.get_n_children(); i++) {
 331                         Glib::VariantBase tmp_vb;
 332                         gvar.get_child(tmp_vb, i);
 333
 334                         Glib::Variant<int32_t> tmp_v =
 335                                 Glib::VariantBase::cast_dynamic< Glib::Variant<int32_t> >(tmp_vb);
 336
 337                         ttypes.push_back(tmp_v.get());
 338                 }
 339
 340                 return ttypes;
 341         } else {
 342                 return vector<int32_t>();
 343         }
 344 }
 345
 346 QAction* LogicSignal::action_from_trigger_type(const TriggerMatchType *type)
 347 {
 348         QAction *action;
 349
 350         action = trigger_none_;
 351         if (type) {
 352                 switch (type->id()) {
 353                 case SR_TRIGGER_ZERO:
 354                         action = trigger_low_;
 355                         break;
 356                 case SR_TRIGGER_ONE:
 357                         action = trigger_high_;
 358                         break;
 359                 case SR_TRIGGER_RISING:
 360                         action = trigger_rising_;
 361                         break;
 362                 case SR_TRIGGER_FALLING:
 363                         action = trigger_falling_;
 364                         break;
 365                 case SR_TRIGGER_EDGE:
 366                         action = trigger_change_;
 367                         break;
 368                 default:
 369                         assert(0);
 370                 }
 371         }
 372
 373         return action;
 374 }
 375
 376 const TriggerMatchType *LogicSignal::trigger_type_from_action(QAction *action)
 377 {
 378         if (action == trigger_low_)
 379                 return TriggerMatchType::ZERO;
 380         else if (action == trigger_high_)
 381                 return TriggerMatchType::ONE;
 382         else if (action == trigger_rising_)
 383                 return TriggerMatchType::RISING;
 384         else if (action == trigger_falling_)
 385                 return TriggerMatchType::FALLING;
 386         else if (action == trigger_change_)
 387                 return TriggerMatchType::EDGE;
 388         else
 389                 return nullptr;
 390 }
 391
 392 void LogicSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
 393 {
 394         Signal::populate_popup_form(parent, form);
 395
 396         const vector<int32_t> trig_types = get_trigger_types();
 397
 398         if (!trig_types.empty()) {
 399                 trigger_bar_ = new QToolBar(parent);
 400                 init_trigger_actions(trigger_bar_);
 401                 trigger_bar_->addAction(trigger_none_);
 402                 trigger_none_->setChecked(!trigger_match_);
 403
 404                 for (auto type_id : trig_types) {
 405                         const TriggerMatchType *const type =
 406                                 TriggerMatchType::get(type_id);
 407                         QAction *const action = action_from_trigger_type(type);
 408                         trigger_bar_->addAction(action);
 409                         action->setChecked(trigger_match_ == type);
 410                 }
 411                 form->addRow(tr("Trigger"), trigger_bar_);
 412         }
 413 }
 414
 415 void LogicSignal::modify_trigger()
 416 {
 417         auto trigger = session_.session()->trigger();
 418         auto new_trigger = session_.device_manager().context()->create_trigger("pulseview");
 419
 420         if (trigger) {
 421                 for (auto stage : trigger->stages()) {
 422                         const auto &matches = stage->matches();
 423                         if (std::none_of(matches.begin(), matches.end(),
 424                             [&](shared_ptr<TriggerMatch> match) {
 425                                         return match->channel() != base_->channel(); }))
 426                                 continue;
 427
 428                         auto new_stage = new_trigger->add_stage();
 429                         for (auto match : stage->matches()) {
 430                                 if (match->channel() == base_->channel())
 431                                         continue;
 432                                 new_stage->add_match(match->channel(), match->type());
 433                         }
 434                 }
 435         }
 436
 437         if (trigger_match_) {
 438                 // Until we can let the user decide how to group trigger matches
 439                 // into stages, put all of the matches into a single stage --
 440                 // most devices only support a single trigger stage.
 441                 if (new_trigger->stages().empty())
 442                         new_trigger->add_stage();
 443
 444                 new_trigger->stages().back()->add_match(base_->channel(),
 445                         trigger_match_);
 446         }
 447
 448         session_.session()->set_trigger(
 449                 new_trigger->stages().empty() ? nullptr : new_trigger);
 450
 451         if (owner_)
 452                 owner_->row_item_appearance_changed(false, true);
 453 }
 454
 455 const QIcon* LogicSignal::get_icon(const char *path)
 456 {
 457         if (!icon_cache_.contains(path)) {
 458                 const QIcon *icon = new QIcon(path);
 459                 icon_cache_.insert(path, icon);
 460         }
 461
 462         return icon_cache_.take(path);
 463 }
 464
 465 const QPixmap* LogicSignal::get_pixmap(const char *path)
 466 {
 467         if (!pixmap_cache_.contains(path)) {
 468                 const QPixmap *pixmap = new QPixmap(path);
 469                 pixmap_cache_.insert(path, pixmap);
 470         }
 471
 472         return pixmap_cache_.take(path);
 473 }
 474
 475 void LogicSignal::on_trigger()
 476 {
 477         QAction *action;
 478
 479         action_from_trigger_type(trigger_match_)->setChecked(false);
 480
 481         action = (QAction *)sender();
 482         action->setChecked(true);
 483         trigger_match_ = trigger_type_from_action(action);
 484
 485         modify_trigger();
 486 }
 487
 488 } // namespace TraceView
 489 } // namespace views
 490 } // namespace pv