Sharaf Zaman has succeeded in prototyping that, so we know it can be done now something we lost in the migration from Qt4 to Qt5.

In the meantime, using Qt 5.12, we’ll move forward adding QtQuick based elements to Krita.Īnd we’ll try to make a QtQuickWindow based version of Krita for Android. We will patch Qt6 to render OpenGL using Angle on Windows and macOS. So we had a big blue button meeting on Friday, where we discussed this issue and some other issues. We could try to rewrite all of Krita in QtQuick and integrate our canvas into QtQuick’s render loop: but yes, that means a complete rewrite, because you cannot put a QWidget in a QtQuickWindow, and putting QtQuick into a QWidget window means you’re rendering using OpenGL, which breaks on Windows, now that Qt6 doesn’t come with an Angle option. We could try to rewrite our canvas in QRhi, the semi-private GPU API abstraction Qt 5.15 and up provides - though it might not have enough functionality for us, since it us just written for what Qt needs for QtQuick.

The options open to us were all confusing: we could try to write Krita’s canvas directly in Metal, OpenGL and Direct3D and show those in native windows in our QtWidgets based application. I have previously written about this subject, and back then couldn’t reach any conclusion.

Krita keeps crashing