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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
36 using namespace movit;
37 using namespace std;
38 using namespace std::placeholders;
39
40 GLWidget::GLWidget(QWidget *parent)
41     : QGLWidget(parent, global_share_widget)
42 {
43 }
44
45 GLWidget::~GLWidget()
46 {
47 }
48
49 void GLWidget::shutdown()
50 {
51         if (resource_pool != nullptr) {
52                 makeCurrent();
53                 resource_pool->clean_context();
54         }
55         global_mixer->remove_frame_ready_callback(output, this);
56 }
57
58 void GLWidget::initializeGL()
59 {
60         static once_flag flag;
61         call_once(flag, [this]{
62                 global_mixer = new Mixer(QGLFormat::toSurfaceFormat(format()), global_flags.num_cards);
63                 global_audio_mixer = global_mixer->get_audio_mixer();
64                 global_mainwindow->mixer_created(global_mixer);
65                 global_mixer->start();
66         });
67         global_mixer->add_frame_ready_callback(output, this, [this]{
68                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
69         });
70         if (output == Mixer::OUTPUT_LIVE) {
71                 global_mixer->set_transition_names_updated_callback(output, [this](const vector<string> &names){
72                         emit transition_names_updated(names);
73                 });
74         }
75         if (output >= Mixer::OUTPUT_INPUT0) {
76                 global_mixer->set_name_updated_callback(output, [this](const string &name){
77                         emit name_updated(output, name);
78                 });
79                 global_mixer->set_color_updated_callback(output, [this](const string &color){
80                         emit color_updated(output, color);
81                 });
82         }
83         setContextMenuPolicy(Qt::CustomContextMenu);
84         connect(this, &QWidget::customContextMenuRequested, bind(&GLWidget::show_context_menu, this, _1));
85
86         glDisable(GL_BLEND);
87         glDisable(GL_DEPTH_TEST);
88         glDepthMask(GL_FALSE);
89 }
90
91 void GLWidget::resizeGL(int width, int height)
92 {
93         current_width = width;
94         current_height = height;
95         glViewport(0, 0, width, height);
96 }
97
98 void GLWidget::paintGL()
99 {
100         Mixer::DisplayFrame frame;
101         if (!global_mixer->get_display_frame(output, &frame)) {
102                 glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
103                 check_error();
104                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
105                 check_error();
106                 return;
107         }
108
109         check_error();
110         glWaitSync(frame.ready_fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
111         check_error();
112         frame.setup_chain();
113         check_error();
114         glDisable(GL_FRAMEBUFFER_SRGB);
115         check_error();
116         frame.chain->render_to_fbo(0, current_width, current_height);
117         check_error();
118
119         if (resource_pool == nullptr) {
120                 resource_pool = frame.chain->get_resource_pool();
121         } else {
122                 assert(resource_pool == frame.chain->get_resource_pool());
123         }
124 }
125
126 void GLWidget::mousePressEvent(QMouseEvent *event)
127 {
128         emit clicked();
129 }
130
131 void GLWidget::show_context_menu(const QPoint &pos)
132 {
133         if (output == Mixer::OUTPUT_LIVE) {
134                 show_live_context_menu(pos);
135         }
136         if (output >= Mixer::OUTPUT_INPUT0) {
137                 int signal_num = global_mixer->get_channel_signal(output);
138                 if (signal_num != -1) {
139                         show_preview_context_menu(signal_num, pos);
140                 }
141         }
142 }
143
144 void GLWidget::show_live_context_menu(const QPoint &pos)
145 {
146         QPoint global_pos = mapToGlobal(pos);
147
148         QMenu menu;
149
150         // Add a submenu for selecting output card, with an action for each card.
151         QMenu card_submenu;
152         fill_hdmi_sdi_output_device_menu(&card_submenu);
153         card_submenu.setTitle("HDMI/SDI output device");
154         menu.addMenu(&card_submenu);
155
156         // Add a submenu for choosing the output resolution. Since this is
157         // card-dependent, it is disabled if we haven't chosen a card
158         // (but it's still there so that the user will know it exists).
159         QMenu resolution_submenu;
160         fill_hdmi_sdi_output_resolution_menu(&resolution_submenu);
161         resolution_submenu.setTitle("HDMI/SDI output resolution");
162         menu.addMenu(&resolution_submenu);
163
164         // Show the menu; if there's an action selected, it will deal with it itself.
165         menu.exec(global_pos);
166 }
167
168 void GLWidget::show_preview_context_menu(unsigned signal_num, const QPoint &pos)
169 {
170         QPoint global_pos = mapToGlobal(pos);
171
172         QMenu menu;
173
174         // Add a submenu for selecting input card, with an action for each card.
175         QMenu card_submenu;
176         QActionGroup card_group(&card_submenu);
177
178         unsigned num_cards = global_mixer->get_num_cards();
179         unsigned current_card = global_mixer->map_signal(signal_num);
180         for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
181                 QString description(QString::fromStdString(global_mixer->get_card_description(card_index)));
182                 QAction *action = new QAction(description, &card_group);
183                 action->setCheckable(true);
184                 if (current_card == card_index) {
185                         action->setChecked(true);
186                 }
187                 action->setData(QList<QVariant>{"card", card_index});
188                 card_submenu.addAction(action);
189         }
190
191         card_submenu.setTitle("Input source");
192         menu.addMenu(&card_submenu);
193
194         // Note that this setting depends on which card is active.
195         // TODO: Consider hiding this for BGRA sources.
196
197         QMenu interpretation_submenu;
198         QActionGroup interpretation_group(&interpretation_submenu);
199
200         YCbCrInterpretation current_interpretation = global_mixer->get_input_ycbcr_interpretation(current_card);
201         {
202                 QAction *action = new QAction("Auto", &interpretation_group);
203                 action->setCheckable(true);
204                 if (current_interpretation.ycbcr_coefficients_auto) {
205                         action->setChecked(true);
206                 }
207                 action->setData(QList<QVariant>{"interpretation", true, YCBCR_REC_709, false});
208                 interpretation_submenu.addAction(action);
209         }
210         for (YCbCrLumaCoefficients ycbcr_coefficients : { YCBCR_REC_709, YCBCR_REC_601 }) {
211                 for (bool full_range : { false, true }) {
212                         std::string description;
213                         if (ycbcr_coefficients == YCBCR_REC_709) {
214                                 description = "Rec. 709 (HD)";
215                         } else {
216                                 description = "Rec. 601 (SD)";
217                         }
218                         if (full_range) {
219                                 description += ", full range (nonstandard)";
220                         }
221                         QAction *action = new QAction(QString::fromStdString(description), &interpretation_group);
222                         action->setCheckable(true);
223                         if (!current_interpretation.ycbcr_coefficients_auto &&
224                             ycbcr_coefficients == current_interpretation.ycbcr_coefficients &&
225                             full_range == current_interpretation.full_range) {
226                                 action->setChecked(true);
227                         }
228                         action->setData(QList<QVariant>{"interpretation", false, ycbcr_coefficients, full_range});
229                         interpretation_submenu.addAction(action);
230                 }
231         }
232
233         interpretation_submenu.setTitle("Input interpretation");
234         menu.addMenu(&interpretation_submenu);
235
236         // --- The choices in the next few options depend a lot on which card is active ---
237
238         // Add a submenu for selecting video input, with an action for each input.
239         QMenu video_input_submenu;
240         QActionGroup video_input_group(&video_input_submenu);
241         std::map<uint32_t, string> video_inputs = global_mixer->get_available_video_inputs(current_card);
242         uint32_t current_video_input = global_mixer->get_current_video_input(current_card);
243         for (const auto &mode : video_inputs) {
244                 QString description(QString::fromStdString(mode.second));
245                 QAction *action = new QAction(description, &video_input_group);
246                 action->setCheckable(true);
247                 if (mode.first == current_video_input) {
248                         action->setChecked(true);
249                 }
250                 action->setData(QList<QVariant>{"video_input", mode.first});
251                 video_input_submenu.addAction(action);
252         }
253
254         video_input_submenu.setTitle("Video input");
255         menu.addMenu(&video_input_submenu);
256
257         // The same for audio input.
258         QMenu audio_input_submenu;
259         QActionGroup audio_input_group(&audio_input_submenu);
260         std::map<uint32_t, string> audio_inputs = global_mixer->get_available_audio_inputs(current_card);
261         uint32_t current_audio_input = global_mixer->get_current_audio_input(current_card);
262         for (const auto &mode : audio_inputs) {
263                 QString description(QString::fromStdString(mode.second));
264                 QAction *action = new QAction(description, &audio_input_group);
265                 action->setCheckable(true);
266                 if (mode.first == current_audio_input) {
267                         action->setChecked(true);
268                 }
269                 action->setData(QList<QVariant>{"audio_input", mode.first});
270                 audio_input_submenu.addAction(action);
271         }
272
273         audio_input_submenu.setTitle("Audio input");
274         menu.addMenu(&audio_input_submenu);
275
276         // The same for resolution.
277         QMenu mode_submenu;
278         QActionGroup mode_group(&mode_submenu);
279         std::map<uint32_t, bmusb::VideoMode> video_modes = global_mixer->get_available_video_modes(current_card);
280         uint32_t current_video_mode = global_mixer->get_current_video_mode(current_card);
281         bool has_auto_mode = false;
282         for (const auto &mode : video_modes) {
283                 QString description(QString::fromStdString(mode.second.name));
284                 QAction *action = new QAction(description, &mode_group);
285                 action->setCheckable(true);
286                 if (mode.first == current_video_mode) {
287                         action->setChecked(true);
288                 }
289                 action->setData(QList<QVariant>{"video_mode", mode.first});
290                 mode_submenu.addAction(action);
291
292                 // TODO: Relying on the 0 value here (from bmusb.h) is ugly, it should be a named constant.
293                 if (mode.first == 0) {
294                         has_auto_mode = true;
295                 }
296         }
297
298         // Add a “scan” menu if there's no “auto” mode.
299         if (!has_auto_mode) {
300                 QAction *action = new QAction("Scan", &mode_group);
301                 action->setData(QList<QVariant>{"video_mode", 0});
302                 mode_submenu.addSeparator();
303                 mode_submenu.addAction(action);
304         }
305
306         mode_submenu.setTitle("Input mode");
307         menu.addMenu(&mode_submenu);
308
309         // --- End of card-dependent choices ---
310
311         // Add an audio source selector.
312         QAction *audio_source_action = nullptr;
313         if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
314                 audio_source_action = new QAction("Use as audio source", &menu);
315                 audio_source_action->setCheckable(true);
316                 if (global_audio_mixer->get_simple_input() == signal_num) {
317                         audio_source_action->setChecked(true);
318                         audio_source_action->setEnabled(false);
319                 }
320                 menu.addAction(audio_source_action);
321         }
322
323         // And a master clock selector.
324         QAction *master_clock_action = new QAction("Use as master clock", &menu);
325         master_clock_action->setCheckable(true);
326         if (global_mixer->get_output_card_index() != -1) {
327                 master_clock_action->setChecked(false);
328                 master_clock_action->setEnabled(false);
329         } else if (global_mixer->get_master_clock() == signal_num) {
330                 master_clock_action->setChecked(true);
331                 master_clock_action->setEnabled(false);
332         }
333         menu.addAction(master_clock_action);
334
335         // Show the menu and look at the result.
336         QAction *selected_item = menu.exec(global_pos);
337         if (audio_source_action != nullptr && selected_item == audio_source_action) {
338                 global_audio_mixer->set_simple_input(signal_num);
339         } else if (selected_item == master_clock_action) {
340                 global_mixer->set_master_clock(signal_num);
341         } else if (selected_item != nullptr) {
342                 QList<QVariant> selected = selected_item->data().toList();
343                 if (selected[0].toString() == "video_mode") {
344                         uint32_t mode = selected[1].toUInt(nullptr);
345                         if (mode == 0 && !has_auto_mode) {
346                                 global_mixer->start_mode_scanning(current_card);
347                         } else {
348                                 global_mixer->set_video_mode(current_card, mode);
349                         }
350                 } else if (selected[0].toString() == "video_input") {
351                         uint32_t input = selected[1].toUInt(nullptr);
352                         global_mixer->set_video_input(current_card, input);
353                 } else if (selected[0].toString() == "audio_input") {
354                         uint32_t input = selected[1].toUInt(nullptr);
355                         global_mixer->set_audio_input(current_card, input);
356                 } else if (selected[0].toString() == "card") {
357                         unsigned card_index = selected[1].toUInt(nullptr);
358                         global_mixer->set_signal_mapping(signal_num, card_index);
359                 } else if (selected[0].toString() == "interpretation") {
360                         YCbCrInterpretation interpretation;
361                         interpretation.ycbcr_coefficients_auto = selected[1].toBool();
362                         interpretation.ycbcr_coefficients = YCbCrLumaCoefficients(selected[2].toUInt(nullptr));
363                         interpretation.full_range = selected[3].toBool();
364                         global_mixer->set_input_ycbcr_interpretation(current_card, interpretation);
365                 } else {
366                         assert(false);
367                 }
368         }
369 }