git.sesse.net Git - nageru/blob - glwidget.cpp

   1 #include "glwidget.h"
   2
   3 #include <assert.h>
   4 #include <bmusb/bmusb.h>
   5 #include <movit/effect_chain.h>
   6 #include <movit/resource_pool.h>
   7 #include <stdbool.h>
   8 #include <stdint.h>
   9 #include <QAction>
  10 #include <QActionGroup>
  11 #include <QList>
  12 #include <QMenu>
  13 #include <QPoint>
  14 #include <QVariant>
  15 #include <QWidget>
  16 #include <functional>
  17 #include <map>
  18 #include <mutex>
  19 #include <utility>
  20
  21 #include "audio_mixer.h"
  22 #include "context.h"
  23 #include "context_menus.h"
  24 #include "flags.h"
  25 #include "mainwindow.h"
  26 #include "mixer.h"
  27 #include "ref_counted_gl_sync.h"
  28
  29 class QMouseEvent;
  30
  31 #undef Success
  32 #include <movit/util.h>
  33 #include <string>
  34
  35 using namespace std;
  36 using namespace std::placeholders;
  37
  38 GLWidget::GLWidget(QWidget *parent)
  39     : QGLWidget(parent, global_share_widget)
  40 {
  41 }
  42
  43 void GLWidget::clean_context()
  44 {
  45         if (resource_pool != nullptr) {
  46                 makeCurrent();
  47                 resource_pool->clean_context();
  48         }
  49 }
  50
  51 void GLWidget::initializeGL()
  52 {
  53         static once_flag flag;
  54         call_once(flag, [this]{
  55                 global_mixer = new Mixer(QGLFormat::toSurfaceFormat(format()), global_flags.num_cards);
  56                 global_audio_mixer = global_mixer->get_audio_mixer();
  57                 global_mainwindow->mixer_created(global_mixer);
  58                 global_mixer->start();
  59         });
  60         global_mixer->set_frame_ready_callback(output, [this]{
  61                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  62         });
  63         if (output == Mixer::OUTPUT_LIVE) {
  64                 global_mixer->set_transition_names_updated_callback(output, [this](const vector<string> &names){
  65                         emit transition_names_updated(names);
  66                 });
  67                 setContextMenuPolicy(Qt::CustomContextMenu);
  68                 connect(this, &QWidget::customContextMenuRequested,
  69                         bind(&GLWidget::show_live_context_menu, this, _1));
  70         }
  71         if (output >= Mixer::OUTPUT_INPUT0) {
  72                 global_mixer->set_name_updated_callback(output, [this](const string &name){
  73                         emit name_updated(output, name);
  74                 });
  75                 global_mixer->set_color_updated_callback(output, [this](const string &color){
  76                         emit color_updated(output, color);
  77                 });
  78
  79                 int signal_num = global_mixer->get_channel_signal(output);
  80                 if (signal_num != -1) {
  81                         setContextMenuPolicy(Qt::CustomContextMenu);
  82                         connect(this, &QWidget::customContextMenuRequested,
  83                                 bind(&GLWidget::show_preview_context_menu, this, signal_num, _1));
  84                 }
  85         }
  86
  87         glDisable(GL_BLEND);
  88         glDisable(GL_DEPTH_TEST);
  89         glDepthMask(GL_FALSE);
  90 }
  91
  92 void GLWidget::resizeGL(int width, int height)
  93 {
  94         glViewport(0, 0, width, height);
  95 }
  96
  97 void GLWidget::paintGL()
  98 {
  99         Mixer::DisplayFrame frame;
 100         if (!global_mixer->get_display_frame(output, &frame)) {
 101                 glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
 102                 check_error();
 103                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 104                 check_error();
 105                 return;
 106         }
 107
 108         check_error();
 109         glWaitSync(frame.ready_fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
 110         check_error();
 111         frame.setup_chain();
 112         check_error();
 113         frame.chain->render_to_screen();
 114         check_error();
 115
 116         if (resource_pool == nullptr) {
 117                 resource_pool = frame.chain->get_resource_pool();
 118         } else {
 119                 assert(resource_pool == frame.chain->get_resource_pool());
 120         }
 121 }
 122
 123 void GLWidget::mousePressEvent(QMouseEvent *event)
 124 {
 125         emit clicked();
 126 }
 127
 128 void GLWidget::show_live_context_menu(const QPoint &pos)
 129 {
 130         QPoint global_pos = mapToGlobal(pos);
 131
 132         QMenu menu;
 133
 134         // Add a submenu for selecting output card, with an action for each card.
 135         QMenu card_submenu;
 136         fill_hdmi_sdi_output_device_menu(&card_submenu);
 137         card_submenu.setTitle("HDMI/SDI output device");
 138         menu.addMenu(&card_submenu);
 139
 140         // Add a submenu for choosing the output resolution. Since this is
 141         // card-dependent, it is disabled if we haven't chosen a card
 142         // (but it's still there so that the user will know it exists).
 143         QMenu resolution_submenu;
 144         fill_hdmi_sdi_output_resolution_menu(&resolution_submenu);
 145         resolution_submenu.setTitle("HDMI/SDI output resolution");
 146         menu.addMenu(&resolution_submenu);
 147
 148         // Show the menu; if there's an action selected, it will deal with it itself.
 149         menu.exec(global_pos);
 150 }
 151
 152 void GLWidget::show_preview_context_menu(unsigned signal_num, const QPoint &pos)
 153 {
 154         QPoint global_pos = mapToGlobal(pos);
 155
 156         QMenu menu;
 157
 158         // Add a submenu for selecting input card, with an action for each card.
 159         QMenu card_submenu;
 160         QActionGroup card_group(&card_submenu);
 161
 162         unsigned num_cards = global_mixer->get_num_cards();
 163         unsigned current_card = global_mixer->map_signal(signal_num);
 164         for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
 165                 QString description(QString::fromStdString(global_mixer->get_card_description(card_index)));
 166                 QAction *action = new QAction(description, &card_group);
 167                 action->setCheckable(true);
 168                 if (current_card == card_index) {
 169                         action->setChecked(true);
 170                 }
 171                 action->setData(QList<QVariant>{"card", card_index});
 172                 card_submenu.addAction(action);
 173         }
 174
 175         card_submenu.setTitle("Input source");
 176         menu.addMenu(&card_submenu);
 177
 178         // --- The choices in the next few options depend a lot on which card is active ---
 179
 180         // Add a submenu for selecting video input, with an action for each input.
 181         QMenu video_input_submenu;
 182         QActionGroup video_input_group(&video_input_submenu);
 183         std::map<uint32_t, string> video_inputs = global_mixer->get_available_video_inputs(current_card);
 184         uint32_t current_video_input = global_mixer->get_current_video_input(current_card);
 185         for (const auto &mode : video_inputs) {
 186                 QString description(QString::fromStdString(mode.second));
 187                 QAction *action = new QAction(description, &video_input_group);
 188                 action->setCheckable(true);
 189                 if (mode.first == current_video_input) {
 190                         action->setChecked(true);
 191                 }
 192                 action->setData(QList<QVariant>{"video_input", mode.first});
 193                 video_input_submenu.addAction(action);
 194         }
 195
 196         video_input_submenu.setTitle("Video input");
 197         menu.addMenu(&video_input_submenu);
 198
 199         // The same for audio input.
 200         QMenu audio_input_submenu;
 201         QActionGroup audio_input_group(&audio_input_submenu);
 202         std::map<uint32_t, string> audio_inputs = global_mixer->get_available_audio_inputs(current_card);
 203         uint32_t current_audio_input = global_mixer->get_current_audio_input(current_card);
 204         for (const auto &mode : audio_inputs) {
 205                 QString description(QString::fromStdString(mode.second));
 206                 QAction *action = new QAction(description, &audio_input_group);
 207                 action->setCheckable(true);
 208                 if (mode.first == current_audio_input) {
 209                         action->setChecked(true);
 210                 }
 211                 action->setData(QList<QVariant>{"audio_input", mode.first});
 212                 audio_input_submenu.addAction(action);
 213         }
 214
 215         audio_input_submenu.setTitle("Audio input");
 216         menu.addMenu(&audio_input_submenu);
 217
 218         // The same for resolution.
 219         QMenu mode_submenu;
 220         QActionGroup mode_group(&mode_submenu);
 221         std::map<uint32_t, bmusb::VideoMode> video_modes = global_mixer->get_available_video_modes(current_card);
 222         uint32_t current_video_mode = global_mixer->get_current_video_mode(current_card);
 223         bool has_auto_mode = false;
 224         for (const auto &mode : video_modes) {
 225                 QString description(QString::fromStdString(mode.second.name));
 226                 QAction *action = new QAction(description, &mode_group);
 227                 action->setCheckable(true);
 228                 if (mode.first == current_video_mode) {
 229                         action->setChecked(true);
 230                 }
 231                 action->setData(QList<QVariant>{"video_mode", mode.first});
 232                 mode_submenu.addAction(action);
 233
 234                 // TODO: Relying on the 0 value here (from bmusb.h) is ugly, it should be a named constant.
 235                 if (mode.first == 0) {
 236                         has_auto_mode = true;
 237                 }
 238         }
 239
 240         // Add a “scan” menu if there's no “auto” mode.
 241         if (!has_auto_mode) {
 242                 QAction *action = new QAction("Scan", &mode_group);
 243                 action->setData(QList<QVariant>{"video_mode", 0});
 244                 mode_submenu.addSeparator();
 245                 mode_submenu.addAction(action);
 246         }
 247
 248         mode_submenu.setTitle("Input mode");
 249         menu.addMenu(&mode_submenu);
 250
 251         // --- End of card-dependent choices ---
 252
 253         // Add an audio source selector.
 254         QAction *audio_source_action = nullptr;
 255         if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
 256                 audio_source_action = new QAction("Use as audio source", &menu);
 257                 audio_source_action->setCheckable(true);
 258                 if (global_audio_mixer->get_simple_input() == signal_num) {
 259                         audio_source_action->setChecked(true);
 260                         audio_source_action->setEnabled(false);
 261                 }
 262                 menu.addAction(audio_source_action);
 263         }
 264
 265         // And a master clock selector.
 266         QAction *master_clock_action = new QAction("Use as master clock", &menu);
 267         master_clock_action->setCheckable(true);
 268         if (global_mixer->get_output_card_index() != -1) {
 269                 master_clock_action->setChecked(false);
 270                 master_clock_action->setEnabled(false);
 271         } else if (global_mixer->get_master_clock() == signal_num) {
 272                 master_clock_action->setChecked(true);
 273                 master_clock_action->setEnabled(false);
 274         }
 275         menu.addAction(master_clock_action);
 276
 277         // Show the menu and look at the result.
 278         QAction *selected_item = menu.exec(global_pos);
 279         if (audio_source_action != nullptr && selected_item == audio_source_action) {
 280                 global_audio_mixer->set_simple_input(signal_num);
 281         } else if (selected_item == master_clock_action) {
 282                 global_mixer->set_master_clock(signal_num);
 283         } else if (selected_item != nullptr) {
 284                 QList<QVariant> selected = selected_item->data().toList();
 285                 if (selected[0].toString() == "video_mode") {
 286                         uint32_t mode = selected[1].toUInt(nullptr);
 287                         if (mode == 0 && !has_auto_mode) {
 288                                 global_mixer->start_mode_scanning(current_card);
 289                         } else {
 290                                 global_mixer->set_video_mode(current_card, mode);
 291                         }
 292                 } else if (selected[0].toString() == "video_input") {
 293                         uint32_t input = selected[1].toUInt(nullptr);
 294                         global_mixer->set_video_input(current_card, input);
 295                 } else if (selected[0].toString() == "audio_input") {
 296                         uint32_t input = selected[1].toUInt(nullptr);
 297                         global_mixer->set_audio_input(current_card, input);
 298                 } else if (selected[0].toString() == "card") {
 299                         unsigned card_index = selected[1].toUInt(nullptr);
 300                         global_mixer->set_signal_mapping(signal_num, card_index);
 301                 } else {
 302                         assert(false);
 303                 }
 304         }
 305 }