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         glDisable(GL_FRAMEBUFFER_SRGB);
 114         check_error();
 115         frame.chain->render_to_screen();
 116         check_error();
 117
 118         if (resource_pool == nullptr) {
 119                 resource_pool = frame.chain->get_resource_pool();
 120         } else {
 121                 assert(resource_pool == frame.chain->get_resource_pool());
 122         }
 123 }
 124
 125 void GLWidget::mousePressEvent(QMouseEvent *event)
 126 {
 127         emit clicked();
 128 }
 129
 130 void GLWidget::show_live_context_menu(const QPoint &pos)
 131 {
 132         QPoint global_pos = mapToGlobal(pos);
 133
 134         QMenu menu;
 135
 136         // Add a submenu for selecting output card, with an action for each card.
 137         QMenu card_submenu;
 138         fill_hdmi_sdi_output_device_menu(&card_submenu);
 139         card_submenu.setTitle("HDMI/SDI output device");
 140         menu.addMenu(&card_submenu);
 141
 142         // Add a submenu for choosing the output resolution. Since this is
 143         // card-dependent, it is disabled if we haven't chosen a card
 144         // (but it's still there so that the user will know it exists).
 145         QMenu resolution_submenu;
 146         fill_hdmi_sdi_output_resolution_menu(&resolution_submenu);
 147         resolution_submenu.setTitle("HDMI/SDI output resolution");
 148         menu.addMenu(&resolution_submenu);
 149
 150         // Show the menu; if there's an action selected, it will deal with it itself.
 151         menu.exec(global_pos);
 152 }
 153
 154 void GLWidget::show_preview_context_menu(unsigned signal_num, const QPoint &pos)
 155 {
 156         QPoint global_pos = mapToGlobal(pos);
 157
 158         QMenu menu;
 159
 160         // Add a submenu for selecting input card, with an action for each card.
 161         QMenu card_submenu;
 162         QActionGroup card_group(&card_submenu);
 163
 164         unsigned num_cards = global_mixer->get_num_cards();
 165         unsigned current_card = global_mixer->map_signal(signal_num);
 166         for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
 167                 QString description(QString::fromStdString(global_mixer->get_card_description(card_index)));
 168                 QAction *action = new QAction(description, &card_group);
 169                 action->setCheckable(true);
 170                 if (current_card == card_index) {
 171                         action->setChecked(true);
 172                 }
 173                 action->setData(QList<QVariant>{"card", card_index});
 174                 card_submenu.addAction(action);
 175         }
 176
 177         card_submenu.setTitle("Input source");
 178         menu.addMenu(&card_submenu);
 179
 180         // --- The choices in the next few options depend a lot on which card is active ---
 181
 182         // Add a submenu for selecting video input, with an action for each input.
 183         QMenu video_input_submenu;
 184         QActionGroup video_input_group(&video_input_submenu);
 185         std::map<uint32_t, string> video_inputs = global_mixer->get_available_video_inputs(current_card);
 186         uint32_t current_video_input = global_mixer->get_current_video_input(current_card);
 187         for (const auto &mode : video_inputs) {
 188                 QString description(QString::fromStdString(mode.second));
 189                 QAction *action = new QAction(description, &video_input_group);
 190                 action->setCheckable(true);
 191                 if (mode.first == current_video_input) {
 192                         action->setChecked(true);
 193                 }
 194                 action->setData(QList<QVariant>{"video_input", mode.first});
 195                 video_input_submenu.addAction(action);
 196         }
 197
 198         video_input_submenu.setTitle("Video input");
 199         menu.addMenu(&video_input_submenu);
 200
 201         // The same for audio input.
 202         QMenu audio_input_submenu;
 203         QActionGroup audio_input_group(&audio_input_submenu);
 204         std::map<uint32_t, string> audio_inputs = global_mixer->get_available_audio_inputs(current_card);
 205         uint32_t current_audio_input = global_mixer->get_current_audio_input(current_card);
 206         for (const auto &mode : audio_inputs) {
 207                 QString description(QString::fromStdString(mode.second));
 208                 QAction *action = new QAction(description, &audio_input_group);
 209                 action->setCheckable(true);
 210                 if (mode.first == current_audio_input) {
 211                         action->setChecked(true);
 212                 }
 213                 action->setData(QList<QVariant>{"audio_input", mode.first});
 214                 audio_input_submenu.addAction(action);
 215         }
 216
 217         audio_input_submenu.setTitle("Audio input");
 218         menu.addMenu(&audio_input_submenu);
 219
 220         // The same for resolution.
 221         QMenu mode_submenu;
 222         QActionGroup mode_group(&mode_submenu);
 223         std::map<uint32_t, bmusb::VideoMode> video_modes = global_mixer->get_available_video_modes(current_card);
 224         uint32_t current_video_mode = global_mixer->get_current_video_mode(current_card);
 225         bool has_auto_mode = false;
 226         for (const auto &mode : video_modes) {
 227                 QString description(QString::fromStdString(mode.second.name));
 228                 QAction *action = new QAction(description, &mode_group);
 229                 action->setCheckable(true);
 230                 if (mode.first == current_video_mode) {
 231                         action->setChecked(true);
 232                 }
 233                 action->setData(QList<QVariant>{"video_mode", mode.first});
 234                 mode_submenu.addAction(action);
 235
 236                 // TODO: Relying on the 0 value here (from bmusb.h) is ugly, it should be a named constant.
 237                 if (mode.first == 0) {
 238                         has_auto_mode = true;
 239                 }
 240         }
 241
 242         // Add a “scan” menu if there's no “auto” mode.
 243         if (!has_auto_mode) {
 244                 QAction *action = new QAction("Scan", &mode_group);
 245                 action->setData(QList<QVariant>{"video_mode", 0});
 246                 mode_submenu.addSeparator();
 247                 mode_submenu.addAction(action);
 248         }
 249
 250         mode_submenu.setTitle("Input mode");
 251         menu.addMenu(&mode_submenu);
 252
 253         // --- End of card-dependent choices ---
 254
 255         // Add an audio source selector.
 256         QAction *audio_source_action = nullptr;
 257         if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
 258                 audio_source_action = new QAction("Use as audio source", &menu);
 259                 audio_source_action->setCheckable(true);
 260                 if (global_audio_mixer->get_simple_input() == signal_num) {
 261                         audio_source_action->setChecked(true);
 262                         audio_source_action->setEnabled(false);
 263                 }
 264                 menu.addAction(audio_source_action);
 265         }
 266
 267         // And a master clock selector.
 268         QAction *master_clock_action = new QAction("Use as master clock", &menu);
 269         master_clock_action->setCheckable(true);
 270         if (global_mixer->get_output_card_index() != -1) {
 271                 master_clock_action->setChecked(false);
 272                 master_clock_action->setEnabled(false);
 273         } else if (global_mixer->get_master_clock() == signal_num) {
 274                 master_clock_action->setChecked(true);
 275                 master_clock_action->setEnabled(false);
 276         }
 277         menu.addAction(master_clock_action);
 278
 279         // Show the menu and look at the result.
 280         QAction *selected_item = menu.exec(global_pos);
 281         if (audio_source_action != nullptr && selected_item == audio_source_action) {
 282                 global_audio_mixer->set_simple_input(signal_num);
 283         } else if (selected_item == master_clock_action) {
 284                 global_mixer->set_master_clock(signal_num);
 285         } else if (selected_item != nullptr) {
 286                 QList<QVariant> selected = selected_item->data().toList();
 287                 if (selected[0].toString() == "video_mode") {
 288                         uint32_t mode = selected[1].toUInt(nullptr);
 289                         if (mode == 0 && !has_auto_mode) {
 290                                 global_mixer->start_mode_scanning(current_card);
 291                         } else {
 292                                 global_mixer->set_video_mode(current_card, mode);
 293                         }
 294                 } else if (selected[0].toString() == "video_input") {
 295                         uint32_t input = selected[1].toUInt(nullptr);
 296                         global_mixer->set_video_input(current_card, input);
 297                 } else if (selected[0].toString() == "audio_input") {
 298                         uint32_t input = selected[1].toUInt(nullptr);
 299                         global_mixer->set_audio_input(current_card, input);
 300                 } else if (selected[0].toString() == "card") {
 301                         unsigned card_index = selected[1].toUInt(nullptr);
 302                         global_mixer->set_signal_mapping(signal_num, card_index);
 303                 } else {
 304                         assert(false);
 305                 }
 306         }
 307 }