On Mon, 9 Sep 2024 11:03:04 +0400 Ilya Fedin <fedin-ilja2...@ya.ru> wrote:
> While most platforms seem to have fractional scaling via > QHighDpiScaling, Wayland is the first (and the only right now) > platform that got fractional devicePixelRatio on QPA level. > QHighDpiScaling doesn't handle that and the Wayland QPA just disables > fractional scaling support when it sees the policy is not PassThrough. > > It's good that it does that at least but I believe this could be done > better. I have patches that make High DPI rounding policy to behave on > Wayland the same as on other platforms, allowing applications using a > rounding policy to render 1:1 with crsip fonts (currently the > compositor downscales as QPA disables fractional scaling support) and > actually respect the policy (downscaling means it's effectively always > Ceil). > > Is there any interest in those changes? > > The code changes are quite small actually: the main patch changing > mostly qhighdpiscaling.cpp is 179 lines long. The auxiliary qtwayland > patch to provide fractional QWaylandScreen::devicePixelRatio > (currently it provides only fractional > QWaylandWindow::devicePixelRatio) is 111 lines long. Anyone? Morten Sørvig? Or is mailing list not the right place to discuss this? -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
