Merge pull request opencv#21528 from sturkmen72:patch-5

omid001php · Jan 28, 2022 · 1f6444f · 1f6444f
2 parents 9cab808 + 439ef64
commit 1f6444f
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/modules/highgui/src/window.cpp b/modules/highgui/src/window.cpp
@@ -963,6 +963,8 @@ void cv::imshow( const String& winname, InputArray _img )
 {
     CV_TRACE_FUNCTION();
 
+    const Size size = _img.size();
+    CV_Assert(size.width>0 && size.height>0);
     {
         cv::AutoLock lock(cv::getWindowMutex());
         cleanupClosedWindows_();
@@ -995,17 +997,14 @@ void cv::imshow( const String& winname, InputArray _img )
         }
     }
 
-    const Size size = _img.size();
 #ifndef HAVE_OPENGL
-    CV_Assert(size.width>0 && size.height>0);
     {
         Mat img = _img.getMat();
         CvMat c_img = cvMat(img);
         cvShowImage(winname.c_str(), &c_img);
     }
 #else
     const double useGl = getWindowProperty(winname, WND_PROP_OPENGL);
-    CV_Assert(size.width>0 && size.height>0);
 
     if (useGl <= 0)
     {