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authorStanislaw Halik <sthalik@misaki.pl>2015-10-30 07:37:41 +0100
committerStanislaw Halik <sthalik@misaki.pl>2015-10-30 08:39:32 +0100
commitaa066bdd4622d4f6824fee864f6be6806813f04d (patch)
tree3df328b8b364cba2373a85827191b259bd78d546 /tracker-aruco/ar_video_widget.cpp
parentd6a54431d178632a2bf466c9904f74abd143afe6 (diff)
move to subdirectory-based build system
Closes #224
Diffstat (limited to 'tracker-aruco/ar_video_widget.cpp')
-rw-r--r--tracker-aruco/ar_video_widget.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/tracker-aruco/ar_video_widget.cpp b/tracker-aruco/ar_video_widget.cpp
new file mode 100644
index 00000000..1c3af262
--- /dev/null
+++ b/tracker-aruco/ar_video_widget.cpp
@@ -0,0 +1,67 @@
+/* Copyright (c) 2014 Stanislaw Halik
+ *
+ * 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.
+ */
+
+#include "ar_video_widget.h"
+
+void ArucoVideoWidget::update_image(const cv::Mat& frame)
+{
+ QMutexLocker foo(&mtx);
+ if (!fresh)
+ {
+ _frame = frame.clone();
+ fresh = true;
+ }
+}
+
+void ArucoVideoWidget::update_and_repaint()
+{
+ QImage qframe;
+
+ {
+ QMutexLocker foo(&mtx);
+ if (_frame.cols*_frame.rows <= 0 || !fresh)
+ return;
+ fresh = false;
+ qframe = QImage(_frame.cols, _frame.rows, QImage::Format_RGB888);
+ uchar* data = qframe.bits();
+ const int pitch = qframe.bytesPerLine();
+ unsigned char *input = (unsigned char*)(_frame.data);
+ const int chans = _frame.channels();
+ for (int y = 0; y < _frame.rows; y++)
+ {
+ const int step = y * _frame.step;
+ const int pitch_ = y * pitch;
+ for (int x = 0; x < _frame.cols; x++)
+ {
+ data[pitch_ + x * 3 + 0] = input[step + x * chans + 2];
+ data[pitch_ + x * 3 + 1] = input[step + x * chans + 1];
+ data[pitch_ + x * 3 + 2] = input[step + x * chans + 0];
+ }
+ }
+ }
+
+ qframe = qframe.scaled(size(), Qt::IgnoreAspectRatio, Qt::FastTransformation);
+
+ {
+ QMutexLocker foo(&mtx);
+ texture = qframe;
+ }
+
+ update();
+}
+
+void ArucoVideoWidget::paintEvent(QPaintEvent* e)
+{
+ QMutexLocker foo(&mtx);
+ QPainter(this).drawImage(e->rect(), texture);
+}
+
+ArucoVideoWidget::ArucoVideoWidget(QWidget* parent): QWidget(parent), fresh(false)
+{
+ connect(&timer, SIGNAL(timeout()), this, SLOT(update_and_repaint()));
+ timer.start(60);
+}