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 GLWidget::~GLWidget()
  44 {
  45 }
  46
  47 void GLWidget::shutdown()
  48 {
  49         if (resource_pool != nullptr) {
  50                 makeCurrent();
  51                 resource_pool->clean_context();
  52         }
  53         global_mixer->remove_frame_ready_callback(output, this);
  54 }
  55
  56 void GLWidget::initializeGL()
  57 {
  58         static once_flag flag;
  59         call_once(flag, [this]{
  60                 global_mixer = new Mixer(QGLFormat::toSurfaceFormat(format()), global_flags.num_cards);
  61                 global_audio_mixer = global_mixer->get_audio_mixer();
  62                 global_mainwindow->mixer_created(global_mixer);
  63                 global_mixer->start();
  64         });
  65         global_mixer->add_frame_ready_callback(output, this, [this]{
  66                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  67         });
  68         if (output == Mixer::OUTPUT_LIVE) {
  69                 global_mixer->set_transition_names_updated_callback(output, [this](const vector<string> &names){
  70                         emit transition_names_updated(names);
  71                 });
  72         }
  73         if (output >= Mixer::OUTPUT_INPUT0) {
  74                 global_mixer->set_name_updated_callback(output, [this](const string &name){
  75                         emit name_updated(output, name);
  76                 });
  77                 global_mixer->set_color_updated_callback(output, [this](const string &color){
  78                         emit color_updated(output, color);
  79                 });
  80         }
  81         setContextMenuPolicy(Qt::CustomContextMenu);
  82         connect(this, &QWidget::customContextMenuRequested, bind(&GLWidget::show_context_menu, this, _1));
  83
  84         glDisable(GL_BLEND);
  85         glDisable(GL_DEPTH_TEST);
  86         glDepthMask(GL_FALSE);
  87 }
  88
  89 void GLWidget::resizeGL(int width, int height)
  90 {
  91         glViewport(0, 0, width, height);
  92 }
  93
  94 void GLWidget::paintGL()
  95 {
  96         Mixer::DisplayFrame frame;
  97         if (!global_mixer->get_display_frame(output, &frame)) {
  98                 glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
  99                 check_error();
 100                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 101                 check_error();
 102                 return;
 103         }
 104
 105         check_error();
 106         glWaitSync(frame.ready_fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
 107         check_error();
 108         frame.setup_chain();
 109         check_error();
 110         glDisable(GL_FRAMEBUFFER_SRGB);
 111         check_error();
 112         frame.chain->render_to_screen();
 113         check_error();
 114
 115         if (resource_pool == nullptr) {
 116                 resource_pool = frame.chain->get_resource_pool();
 117         } else {
 118                 assert(resource_pool == frame.chain->get_resource_pool());
 119         }
 120 }
 121
 122 void GLWidget::mousePressEvent(QMouseEvent *event)
 123 {
 124         emit clicked();
 125 }
 126
 127 void GLWidget::show_context_menu(const QPoint &pos)
 128 {
 129         if (output == Mixer::OUTPUT_LIVE) {
 130                 show_live_context_menu(pos);
 131         }
 132         if (output >= Mixer::OUTPUT_INPUT0) {
 133                 int signal_num = global_mixer->get_channel_signal(output);
 134                 show_preview_context_menu(signal_num, pos);
 135         }
 136 }
 137
 138 void GLWidget::show_live_context_menu(const QPoint &pos)
 139 {
 140         QPoint global_pos = mapToGlobal(pos);
 141
 142         QMenu menu;
 143
 144         // Add a submenu for selecting output card, with an action for each card.
 145         QMenu card_submenu;
 146         fill_hdmi_sdi_output_device_menu(&card_submenu);
 147         card_submenu.setTitle("HDMI/SDI output device");
 148         menu.addMenu(&card_submenu);
 149
 150         // Add a submenu for choosing the output resolution. Since this is
 151         // card-dependent, it is disabled if we haven't chosen a card
 152         // (but it's still there so that the user will know it exists).
 153         QMenu resolution_submenu;
 154         fill_hdmi_sdi_output_resolution_menu(&resolution_submenu);
 155         resolution_submenu.setTitle("HDMI/SDI output resolution");
 156         menu.addMenu(&resolution_submenu);
 157
 158         // Show the menu; if there's an action selected, it will deal with it itself.
 159         menu.exec(global_pos);
 160 }
 161
 162 void GLWidget::show_preview_context_menu(unsigned signal_num, const QPoint &pos)
 163 {
 164         QPoint global_pos = mapToGlobal(pos);
 165
 166         QMenu menu;
 167
 168         // Add a submenu for selecting input card, with an action for each card.
 169         QMenu card_submenu;
 170         QActionGroup card_group(&card_submenu);
 171
 172         unsigned num_cards = global_mixer->get_num_cards();
 173         unsigned current_card = global_mixer->map_signal(signal_num);
 174         for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
 175                 QString description(QString::fromStdString(global_mixer->get_card_description(card_index)));
 176                 QAction *action = new QAction(description, &card_group);
 177                 action->setCheckable(true);
 178                 if (current_card == card_index) {
 179                         action->setChecked(true);
 180                 }
 181                 action->setData(QList<QVariant>{"card", card_index});
 182                 card_submenu.addAction(action);
 183         }
 184
 185         card_submenu.setTitle("Input source");
 186         menu.addMenu(&card_submenu);
 187
 188         // --- The choices in the next few options depend a lot on which card is active ---
 189
 190         // Add a submenu for selecting video input, with an action for each input.
 191         QMenu video_input_submenu;
 192         QActionGroup video_input_group(&video_input_submenu);
 193         std::map<uint32_t, string> video_inputs = global_mixer->get_available_video_inputs(current_card);
 194         uint32_t current_video_input = global_mixer->get_current_video_input(current_card);
 195         for (const auto &mode : video_inputs) {
 196                 QString description(QString::fromStdString(mode.second));
 197                 QAction *action = new QAction(description, &video_input_group);
 198                 action->setCheckable(true);
 199                 if (mode.first == current_video_input) {
 200                         action->setChecked(true);
 201                 }
 202                 action->setData(QList<QVariant>{"video_input", mode.first});
 203                 video_input_submenu.addAction(action);
 204         }
 205
 206         video_input_submenu.setTitle("Video input");
 207         menu.addMenu(&video_input_submenu);
 208
 209         // The same for audio input.
 210         QMenu audio_input_submenu;
 211         QActionGroup audio_input_group(&audio_input_submenu);
 212         std::map<uint32_t, string> audio_inputs = global_mixer->get_available_audio_inputs(current_card);
 213         uint32_t current_audio_input = global_mixer->get_current_audio_input(current_card);
 214         for (const auto &mode : audio_inputs) {
 215                 QString description(QString::fromStdString(mode.second));
 216                 QAction *action = new QAction(description, &audio_input_group);
 217                 action->setCheckable(true);
 218                 if (mode.first == current_audio_input) {
 219                         action->setChecked(true);
 220                 }
 221                 action->setData(QList<QVariant>{"audio_input", mode.first});
 222                 audio_input_submenu.addAction(action);
 223         }
 224
 225         audio_input_submenu.setTitle("Audio input");
 226         menu.addMenu(&audio_input_submenu);
 227
 228         // The same for resolution.
 229         QMenu mode_submenu;
 230         QActionGroup mode_group(&mode_submenu);
 231         std::map<uint32_t, bmusb::VideoMode> video_modes = global_mixer->get_available_video_modes(current_card);
 232         uint32_t current_video_mode = global_mixer->get_current_video_mode(current_card);
 233         bool has_auto_mode = false;
 234         for (const auto &mode : video_modes) {
 235                 QString description(QString::fromStdString(mode.second.name));
 236                 QAction *action = new QAction(description, &mode_group);
 237                 action->setCheckable(true);
 238                 if (mode.first == current_video_mode) {
 239                         action->setChecked(true);
 240                 }
 241                 action->setData(QList<QVariant>{"video_mode", mode.first});
 242                 mode_submenu.addAction(action);
 243
 244                 // TODO: Relying on the 0 value here (from bmusb.h) is ugly, it should be a named constant.
 245                 if (mode.first == 0) {
 246                         has_auto_mode = true;
 247                 }
 248         }
 249
 250         // Add a “scan” menu if there's no “auto” mode.
 251         if (!has_auto_mode) {
 252                 QAction *action = new QAction("Scan", &mode_group);
 253                 action->setData(QList<QVariant>{"video_mode", 0});
 254                 mode_submenu.addSeparator();
 255                 mode_submenu.addAction(action);
 256         }
 257
 258         mode_submenu.setTitle("Input mode");
 259         menu.addMenu(&mode_submenu);
 260
 261         // --- End of card-dependent choices ---
 262
 263         // Add an audio source selector.
 264         QAction *audio_source_action = nullptr;
 265         if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
 266                 audio_source_action = new QAction("Use as audio source", &menu);
 267                 audio_source_action->setCheckable(true);
 268                 if (global_audio_mixer->get_simple_input() == signal_num) {
 269                         audio_source_action->setChecked(true);
 270                         audio_source_action->setEnabled(false);
 271                 }
 272                 menu.addAction(audio_source_action);
 273         }
 274
 275         // And a master clock selector.
 276         QAction *master_clock_action = new QAction("Use as master clock", &menu);
 277         master_clock_action->setCheckable(true);
 278         if (global_mixer->get_output_card_index() != -1) {
 279                 master_clock_action->setChecked(false);
 280                 master_clock_action->setEnabled(false);
 281         } else if (global_mixer->get_master_clock() == signal_num) {
 282                 master_clock_action->setChecked(true);
 283                 master_clock_action->setEnabled(false);
 284         }
 285         menu.addAction(master_clock_action);
 286
 287         // Show the menu and look at the result.
 288         QAction *selected_item = menu.exec(global_pos);
 289         if (audio_source_action != nullptr && selected_item == audio_source_action) {
 290                 global_audio_mixer->set_simple_input(signal_num);
 291         } else if (selected_item == master_clock_action) {
 292                 global_mixer->set_master_clock(signal_num);
 293         } else if (selected_item != nullptr) {
 294                 QList<QVariant> selected = selected_item->data().toList();
 295                 if (selected[0].toString() == "video_mode") {
 296                         uint32_t mode = selected[1].toUInt(nullptr);
 297                         if (mode == 0 && !has_auto_mode) {
 298                                 global_mixer->start_mode_scanning(current_card);
 299                         } else {
 300                                 global_mixer->set_video_mode(current_card, mode);
 301                         }
 302                 } else if (selected[0].toString() == "video_input") {
 303                         uint32_t input = selected[1].toUInt(nullptr);
 304                         global_mixer->set_video_input(current_card, input);
 305                 } else if (selected[0].toString() == "audio_input") {
 306                         uint32_t input = selected[1].toUInt(nullptr);
 307                         global_mixer->set_audio_input(current_card, input);
 308                 } else if (selected[0].toString() == "card") {
 309                         unsigned card_index = selected[1].toUInt(nullptr);
 310                         global_mixer->set_signal_mapping(signal_num, card_index);
 311                 } else {
 312                         assert(false);
 313                 }
 314         }
 315 }