diff --git a/modules/highgui/src/window_QT.cpp b/modules/highgui/src/window_QT.cpp index 1acd0d1672..e83a442c6a 100644 --- a/modules/highgui/src/window_QT.cpp +++ b/modules/highgui/src/window_QT.cpp @@ -54,9 +54,12 @@ #include #endif +// Get GL_PERSPECTIVE_CORRECTION_HINT definition, not available in GLES 2 or +// OpenGL 3 core profile or later #ifdef HAVE_QT_OPENGL - #if defined Q_WS_X11 /* Qt4 */ || defined Q_OS_LINUX /* Qt5 */ - #include + #if defined Q_WS_X11 /* Qt4 */ || \ + (!defined(QT_OPENGL_ES_2) && defined Q_OS_LINUX) /* Qt5 with desktop OpenGL */ + #include #endif #endif @@ -3226,7 +3229,9 @@ void OpenGlViewPort::updateGl() void OpenGlViewPort::initializeGL() { +#ifdef GL_PERSPECTIVE_CORRECTION_HINT glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); +#endif } void OpenGlViewPort::resizeGL(int w, int h)