How to draw image faster
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wrote on 10 Jan 2020, 08:36 last edited by
I'm drawing some images on a widget inherited from QOpenGLWidget, and it shows properly.But on some computers it doesn't show anything. I used OpenGL Extensions Viewer and it told me the opengl version is 1.0.0. Maybe the graphics card is too old to support opengl. So I used drawPixmap instead of opengl functions, which is available but slow.
My question is: Is there a way I can draw image faster without opengl ?I'm considering ANGLE, but I know little about it and dont't know how to start.Extra info:
IDE: VS2015+Qt5.9.6
platform:Windows 10 -
I'm drawing some images on a widget inherited from QOpenGLWidget, and it shows properly.But on some computers it doesn't show anything. I used OpenGL Extensions Viewer and it told me the opengl version is 1.0.0. Maybe the graphics card is too old to support opengl. So I used drawPixmap instead of opengl functions, which is available but slow.
My question is: Is there a way I can draw image faster without opengl ?I'm considering ANGLE, but I know little about it and dont't know how to start.Extra info:
IDE: VS2015+Qt5.9.6
platform:Windows 10wrote on 10 Jan 2020, 14:29 last edited by beecksche 1 Oct 2020, 14:30Maybe with different
QLabelandQPixmaporQPicturehttps://doc.qt.io/qt-5/qlabel.html#pixmap-prop
https://doc.qt.io/qt-5/qlabel.html#setPicture
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