On Windows, a borderless window will be treated the same as exclusive fullscreen
when the window geometry matches the physical dimensions of the screen.
However, with High DPI scaling, when the devicePixelRatioF() is > 1, the borderless
window apparently is not treated as exclusive fullscreen and functions correctly.
One can verify and replicate this behavior by using a high resolution (4K) display,
and switching between 100% and 200% scaling in Windows' display settings.
At 100%, without the addition of 1, it is treated as exclusive fullscreen.
At 200%, with or without the addition of 1, it is treated as borderless windowed.
Therefore, we can use (read: abuse) this difference in behavior to fix this issue for
those with higher resolution displays when the Qt scaling ratio is > 1.
Should this behavior be changed in the future, please revisit this workaround.
devicePixelRatioF() returns the scaling ratio when high dpi scaling is enabled.
When high dpi scaling is enabled, the raw screen coordinate system is scaled to device independent coordinates.
This uses Qt's new high DPI application attributes for scaling the current window.
However, these aren't perfect as scaling with non integer scales will cause artifacts in UI, icons and other elements.
Therefore, we use a heuristic to select an appropriate integer scale value depending on the current screen resolution and applies this to the application.
Moves icon path to ~/.local/share/icons, though I'm opting to avoid
using the game title for the icon and desktop entry name as that would
cause filenames such as
"yuzu-cadence-of-hyrule-crypt-of-the-necrodancer-featuring-the-legend-of-zelda-demo.desktop".
This creates a Desktop Entry file and a PNG icon for the entry when the
user right-clicks a game and selects "Create Shortcut -> Create
{Application,Desktop} Shortcut". This uses the current executable's path
to create the shortcut.
yuzu qt: Add more error checking and OS gating for shortcuts
main: Remove FreeBSD gating for shortcuts
I'm not going to test FreeBSD, so I don't know if they follow
Freedesktop.org or not. I just have to let someone else verify that it
works there and let them enable it.
main: Move shortcut function to its own function
This function should really be in a common library, at least among
frontends.
main: Remove image manip references
main: Fix difference in MinGW and native GCC versions
main: Fix negation in creat shortcut
Addresses review comment
Co-authored-by: Jan Beich <jbeich@FreeBSD.org>
main: Re-enable freedesktop shorcuts for FreeBSD
