]> git.sesse.net Git - nageru/blobdiff - analyzer.cpp
Fix an issue where the mixer lagging too much behind CEF would cause us to display...
[nageru] / analyzer.cpp
index 70b75f9fe9f8390e3979f2a3ec1dbbb13f930e17..b24b46a26ff52457ae3893f7cbf6b1253a1b2f24 100644 (file)
@@ -4,6 +4,7 @@
 #include <QMouseEvent>
 #include <QPen>
 #include <QSurface>
+#include <QTimer>
 
 #include <movit/resource_pool.h>
 #include <movit/util.h>
@@ -36,7 +37,15 @@ Analyzer::Analyzer()
 {
        ui->setupUi(this);
 
-       //connect(ui->button_box, &QDialogButtonBox::accepted, [this]{ this->close(); });
+       surface = create_surface(QSurfaceFormat::defaultFormat());
+       context = create_context(surface);
+       if (!make_current(context, surface)) {
+               printf("oops\n");
+               exit(1);
+       }
+
+       grab_timer.setSingleShot(true);
+       connect(&grab_timer, &QTimer::timeout, bind(&Analyzer::grab_clicked, this));
 
        ui->input_box->addItem("Live", Mixer::OUTPUT_LIVE);
        ui->input_box->addItem("Preview", Mixer::OUTPUT_PREVIEW);
@@ -47,22 +56,20 @@ Analyzer::Analyzer()
                ui->input_box->addItem(QString::fromStdString(name), channel);
        }
 
+       ui->grab_frequency_box->addItem("Never", 0);
+       ui->grab_frequency_box->addItem("100 ms", 100);
+       ui->grab_frequency_box->addItem("1 sec", 1000);
+       ui->grab_frequency_box->addItem("10 sec", 10000);
+       ui->grab_frequency_box->setCurrentIndex(2);
+
        connect(ui->grab_btn, &QPushButton::clicked, bind(&Analyzer::grab_clicked, this));
        connect(ui->input_box, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), bind(&Analyzer::signal_changed, this));
        signal_changed();
        ui->grabbed_frame_label->installEventFilter(this);
 
-       surface = create_surface(QSurfaceFormat::defaultFormat());
-       context = create_context(surface);
-
-       if (!make_current(context, surface)) {
-               printf("oops\n");
-               exit(1);
-       }
-
         glGenBuffers(1, &pbo);
         glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
-        glBufferData(GL_PIXEL_PACK_BUFFER_ARB, global_flags.width * global_flags.height * 4, NULL, GL_STREAM_READ);
+        glBufferData(GL_PIXEL_PACK_BUFFER_ARB, global_flags.width * global_flags.height * 4, nullptr, GL_STREAM_READ);
 
        ui->histogram->xAxis->setVisible(true);
        ui->histogram->yAxis->setVisible(false);
@@ -71,18 +78,31 @@ Analyzer::Analyzer()
 
 Analyzer::~Analyzer()
 {
+       delete_context(context);
+       delete surface;
+}
+
+void Analyzer::update_channel_name(Mixer::Output output, const string &name)
+{
+       if (output >= Mixer::OUTPUT_INPUT0) {
+               int index = (output - Mixer::OUTPUT_INPUT0) + 2;
+               ui->input_box->setItemText(index, QString::fromStdString(name));
+       }
+}
+
+void Analyzer::mixer_shutting_down()
+{
+       ui->display->shutdown();
+
        if (!make_current(context, surface)) {
                printf("oops\n");
                exit(1);
        }
        glDeleteBuffers(1, &pbo);
        check_error();
-       ui->display->shutdown();
        if (resource_pool != nullptr) {
                resource_pool->clean_context();
        }
-       delete_context(context);
-       delete surface;
 }
 
 void Analyzer::grab_clicked()
@@ -96,7 +116,7 @@ void Analyzer::grab_clicked()
 
        Mixer::DisplayFrame frame;
        if (!global_mixer->get_display_frame(channel, &frame)) {
-               printf("Not ready yet\n");
+               // Not ready yet.
                return;
        }
 
@@ -203,34 +223,172 @@ void Analyzer::grab_clicked()
        check_error();
        resource_pool->release_fbo(fbo);
        check_error();
+
+       if (last_x >= 0 && last_y >= 0) {
+               grab_pixel(last_x, last_y);
+       }
+
+       if (isVisible()) {
+               grab_timer.stop();
+
+               // Set up the next autograb if configured.
+               int delay = ui->grab_frequency_box->currentData().toInt(nullptr);
+               if (delay > 0) {
+                       grab_timer.start(delay);
+               }
+       }
 }
 
 void Analyzer::signal_changed()
 {
        Mixer::Output channel = static_cast<Mixer::Output>(ui->input_box->currentData().value<int>());
        ui->display->set_output(channel);
+       grab_clicked();
 }
 
 bool Analyzer::eventFilter(QObject *watched, QEvent *event)
 {
-       if (event->type() == QEvent::MouseMove &&
-           watched->isWidgetType()) {
+       if (event->type() == QEvent::MouseMove && watched->isWidgetType()) {
                const QMouseEvent *mouse_event = (QMouseEvent *)event;
-               const QPixmap *pixmap = ui->grabbed_frame_label->pixmap();
-               if (pixmap != nullptr) {
-                       int x = lrint(mouse_event->x() * double(pixmap->width()) / ui->grabbed_frame_label->width());
-                       int y = lrint(mouse_event->y() * double(pixmap->height()) / ui->grabbed_frame_label->height());
-                       x = std::min(x, pixmap->width() - 1);
-                       y = std::min(y, pixmap->height() - 1);
-                       QRgb pixel = grabbed_image.pixel(x, y);
-                       ui->red_label->setText(QString::fromStdString(to_string(qRed(pixel))));
-                       ui->green_label->setText(QString::fromStdString(to_string(qGreen(pixel))));
-                       ui->blue_label->setText(QString::fromStdString(to_string(qBlue(pixel))));
-
-                       char buf[256];
-                       snprintf(buf, sizeof(buf), "#%02x%02x%02x", qRed(pixel), qGreen(pixel), qBlue(pixel));
-                       ui->hex_label->setText(buf);
-               }
-        }
+               last_x = mouse_event->x();
+               last_y = mouse_event->y();
+               grab_pixel(mouse_event->x(), mouse_event->y());
+       }
+       if (event->type() == QEvent::Leave && watched->isWidgetType()) {
+               last_x = last_y = -1;
+               ui->coord_label->setText("Selected coordinate (x,y): (none)");
+               ui->red_label->setText(u8"—");
+               ui->green_label->setText(u8"—");
+               ui->blue_label->setText(u8"—");
+               ui->hex_label->setText(u8"#—");
+       }
         return false;
 }
+
+void Analyzer::grab_pixel(int x, int y)
+{
+       const QPixmap *pixmap = ui->grabbed_frame_label->pixmap();
+       if (pixmap != nullptr) {
+               x = lrint(x * double(pixmap->width()) / ui->grabbed_frame_label->width());
+               y = lrint(y * double(pixmap->height()) / ui->grabbed_frame_label->height());
+               x = std::min(x, pixmap->width() - 1);
+               y = std::min(y, pixmap->height() - 1);
+
+               char buf[256];
+               snprintf(buf, sizeof(buf), "Selected coordinate (x,y): (%d,%d)", x, y);
+               ui->coord_label->setText(buf);
+
+               QRgb pixel = grabbed_image.pixel(x, y);
+               ui->red_label->setText(QString::fromStdString(to_string(qRed(pixel))));
+               ui->green_label->setText(QString::fromStdString(to_string(qGreen(pixel))));
+               ui->blue_label->setText(QString::fromStdString(to_string(qBlue(pixel))));
+
+               snprintf(buf, sizeof(buf), "#%02x%02x%02x", qRed(pixel), qGreen(pixel), qBlue(pixel));
+               ui->hex_label->setText(buf);
+       }
+}
+
+void Analyzer::resizeEvent(QResizeEvent* event)
+{
+       QMainWindow::resizeEvent(event);
+
+       // Ask for a relayout, but only after the event loop is done doing relayout
+       // on everything else.
+       QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
+}
+
+void Analyzer::showEvent(QShowEvent *event)
+{
+       grab_clicked();
+}
+
+void Analyzer::relayout()
+{
+       double aspect = double(global_flags.width) / global_flags.height;
+
+       // Left pane (2/5 of the width).
+       {
+               int width = ui->left_pane->geometry().width();
+               int height = ui->left_pane->geometry().height();
+
+               // Figure out how much space everything that's non-responsive needs.
+               int remaining_height = height - ui->left_pane->spacing() * (ui->left_pane->count() - 1);
+
+               remaining_height -= ui->input_box->geometry().height();
+               ui->left_pane->setStretch(2, ui->grab_btn->geometry().height());
+
+               remaining_height -= ui->grab_btn->geometry().height();
+               ui->left_pane->setStretch(3, ui->grab_btn->geometry().height());
+
+               remaining_height -= ui->histogram_label->geometry().height();
+               ui->left_pane->setStretch(5, ui->histogram_label->geometry().height());
+
+               // The histogram's minimumHeight returns 0, so let's set a reasonable minimum for it.
+               int min_histogram_height = 50;
+               remaining_height -= min_histogram_height;
+
+               // Allocate so that the display is 16:9, if possible.
+               unsigned wanted_display_height = width / aspect;
+               unsigned display_height;
+               unsigned margin = 0;
+               if (remaining_height >= int(wanted_display_height)) {
+                       display_height = wanted_display_height;
+               } else {
+                       display_height = remaining_height;
+                       int display_width = lrint(display_height * aspect);
+                       margin = (width - display_width) / 2;
+               }
+               ui->left_pane->setStretch(1, display_height);
+               ui->display_left_spacer->changeSize(margin, 1);
+               ui->display_right_spacer->changeSize(margin, 1);
+
+               remaining_height -= display_height;
+
+               // Figure out if we can do the histogram at 16:9.
+               remaining_height += min_histogram_height;
+               unsigned histogram_height;
+               if (remaining_height >= int(wanted_display_height)) {
+                       histogram_height = wanted_display_height;
+               } else {
+                       histogram_height = remaining_height;
+               }
+               remaining_height -= histogram_height;
+               ui->left_pane->setStretch(4, histogram_height);
+
+               ui->left_pane->setStretch(0, remaining_height / 2);
+               ui->left_pane->setStretch(6, remaining_height / 2);
+       }
+
+       // Right pane (remaining 3/5 of the width).
+       {
+               int width = ui->right_pane->geometry().width();
+               int height = ui->right_pane->geometry().height();
+
+               // Figure out how much space everything that's non-responsive needs.
+               int remaining_height = height - ui->right_pane->spacing() * (ui->right_pane->count() - 1);
+               remaining_height -= ui->grabbed_frame_sublabel->geometry().height();
+               remaining_height -= ui->coord_label->geometry().height();
+               remaining_height -= ui->color_hbox->geometry().height();
+
+               // Allocate so that the display is 16:9, if possible.
+               unsigned wanted_display_height = width / aspect;
+               unsigned display_height;
+               unsigned margin = 0;
+               if (remaining_height >= int(wanted_display_height)) {
+                       display_height = wanted_display_height;
+               } else {
+                       display_height = remaining_height;
+                       int display_width = lrint(display_height * aspect);
+                       margin = (width - display_width) / 2;
+               }
+               ui->right_pane->setStretch(1, display_height);
+               ui->grabbed_frame_left_spacer->changeSize(margin, 1);
+               ui->grabbed_frame_right_spacer->changeSize(margin, 1);
+               remaining_height -= display_height;
+
+               if (remaining_height < 0) remaining_height = 0;
+
+               ui->right_pane->setStretch(0, remaining_height / 2);
+               ui->right_pane->setStretch(5, remaining_height / 2);
+       }
+}