2 files changed, 17 insertions, 23 deletions

diff --git a/cv/video-widget.cpp b/cv/video-widget.cpp
index 7240814f..8ff252c9 100644
--- a/cv/video-widget.cpp
+++ b/cv/video-widget.cpp
@@ -4,15 +4,15 @@
 
 void cv_video_widget::update_image(const cv::Mat& frame)
 {
-    QMutexLocker l(&mtx);
-
-    if (freshp)
+    if (fresh())
         return;
 
+    auto [ W, H ] = preview_size();
+
     if (W < 1 || H < 1 || frame.rows < 1 || frame.cols < 1)
         return;
 
-    cv::Mat const* __restrict frame_scaled = nullptr;
+    cv::Mat const* __restrict scaled = nullptr;
 
     if (frame3.cols != W || frame3.rows != H)
     {
@@ -26,22 +26,20 @@ void cv_video_widget::update_image(const cv::Mat& frame)
     if (frame.cols != W || frame.rows != H)
     {
         cv::resize(frame, frame3, { W, H }, 0, 0, cv::INTER_NEAREST);
-        frame_scaled = &frame3;
+        scaled = &frame3;
     }
     else if (!frame.isContinuous())
     {
         frame.copyTo(frame3);
-        frame_scaled = &frame3;
+        scaled = &frame3;
     }
     else
-        frame_scaled = &frame;
-
-    freshp = true;
+        scaled = &frame;
 
     int color_cvt = 0;
     constexpr int nchannels = 4;
 
-    switch (frame_scaled->channels())
+    switch (scaled->channels())
     {
     case 1:
         color_cvt = cv::COLOR_GRAY2BGRA;
@@ -56,23 +54,19 @@ void cv_video_widget::update_image(const cv::Mat& frame)
         break;
     }
 
-    cv::Mat const* frame_color;
+    cv::Mat const* color;
 
     if (color_cvt != cv::COLOR_COLORCVT_MAX)
     {
-        cv::cvtColor(*frame_scaled, frame2, color_cvt);
-        frame_color = &frame2;
+        cv::cvtColor(*scaled, frame2, color_cvt);
+        color = &frame2;
     }
     else
-        frame_color = frame_scaled;
+        color = scaled;
 
-    int stride = frame_color->step.p[0], rows = frame_color->rows;
-    unsigned nbytes = (unsigned)(rows * stride);
-    vec.resize(nbytes); vec.shrink_to_fit();
-    std::memcpy(vec.data(), frame_color->data, nbytes);
+    int width = color->cols, height = color->rows;
+    unsigned stride = color->step.p[0];
+    set_image(color->data, width, height, stride, QImage::Format_ARGB32);
 
-    texture = QImage((const unsigned char*) vec.data(), W, H, stride, QImage::Format_ARGB32);
-    texture.setDevicePixelRatio(devicePixelRatioF());
+    set_fresh(true);
 }
-
-cv_video_widget::cv_video_widget(QWidget* parent) : video_widget(parent) {}
diff --git a/cv/video-widget.hpp b/cv/video-widget.hpp
index 9d62f19e..54316d32 100644
--- a/cv/video-widget.hpp
+++ b/cv/video-widget.hpp
@@ -12,7 +12,7 @@
 
 struct cv_video_widget final : video_widget
 {
-    cv_video_widget(QWidget* parent = nullptr);
+    using video_widget::video_widget;
     void update_image(const cv::Mat& frame);
 
 private: