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-rw-r--r--ftnoir_tracker_pt/pt_video_widget.cpp64
1 files changed, 64 insertions, 0 deletions
diff --git a/ftnoir_tracker_pt/pt_video_widget.cpp b/ftnoir_tracker_pt/pt_video_widget.cpp
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+++ b/ftnoir_tracker_pt/pt_video_widget.cpp
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+/* Copyright (c) 2012 Patrick Ruoff
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * 20130312, WVR: Add 7 lines to resizeGL after resize_frame. This should lower CPU-load.
+ */
+
+#include "pt_video_widget.h"
+
+#include <QDebug>
+#include <QHBoxLayout>
+
+using namespace cv;
+using namespace std;
+
+void PTVideoWidget::update_image(const cv::Mat& frame)
+{
+ QMutexLocker foo(&mtx);
+ _frame = frame.clone();
+ freshp = true;
+}
+
+// ----------------------------------------------------------------------------
+VideoWidgetDialog::VideoWidgetDialog(QWidget *parent, FrameProvider* provider)
+ : QDialog(parent),
+ video_widget(NULL)
+{
+ const int VIDEO_FRAME_WIDTH = 640;
+ const int VIDEO_FRAME_HEIGHT = 480;
+
+ video_widget = new PTVideoWidget(this, provider);
+
+ QHBoxLayout* layout = new QHBoxLayout();
+ layout->setContentsMargins(0, 0, 0, 0);
+ layout->addWidget(video_widget);
+ if (this->layout()) delete this->layout();
+ setLayout(layout);
+ resize(VIDEO_FRAME_WIDTH, VIDEO_FRAME_HEIGHT);
+}
+
+void PTVideoWidget::update_and_repaint()
+{
+ QMutexLocker foo(&mtx);
+ if (_frame.empty() || !freshp)
+ return;
+ freshp = false;
+ QImage qframe = QImage(_frame.cols, _frame.rows, QImage::Format_RGB888);
+ uchar* data = qframe.bits();
+ const int pitch = qframe.bytesPerLine();
+ for (int y = 0; y < _frame.rows; y++)
+ for (int x = 0; x < _frame.cols; x++)
+ {
+ const auto& elt = _frame.at<Vec3b>(y, x);
+ const cv::Scalar elt2 = static_cast<cv::Scalar>(elt);
+ data[y * pitch + x * 3 + 0] = elt2.val[2];
+ data[y * pitch + x * 3 + 1] = elt2.val[1];
+ data[y * pitch + x * 3 + 2] = elt2.val[0];
+ }
+ qframe = qframe.scaled(size(), Qt::IgnoreAspectRatio, Qt::FastTransformation);
+ texture = qframe;
+ update();
+}