Reduce each (Accel & Fallback) to 3 options: Off, Fast, Good. Fast AA
in accelerated canvas uses SMAA with tweaks suggested by David Beinder.
Good AA is super-sampled x2.
Cairo is similarly reduced to Off, Fast, Good, which map to the Cairo
options themselves. Best is removed as it mostly affects text rendering
and not line drawing (as our text is)
The same logic block to resolve possible symlinks exists in 5 different
places now. This change moves this duplicated code to a static member
function of WX_FILENAME instead.
Moves the OpenGL AA options to the same Fast/Balanced/HQ options as used
in Fallback. Fast and Balanced are the SMAA options, with decreasing
threshholds and more processing in the balanced version. HQ is
supersampling x2. This takes more memory and may not work for HiDPI
screens with underpowered graphics cards. But it looks the best of the
three options.
The SSx4 option is removed as it added little benefit in either regular
or HiDPI screens
Fixes https://gitlab.com/kicad/code/kicad/issues/5196
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8522
Conservative makes SMAA usable in Eeschema through weaker AA.
Aggressive reduces some artifacts compared to the High preset.
Restores the unused Ultra preset in the shader source to its original state.
When running headless, e.g. from Python script, the wxApp has not be
instantiated, so we cannot use wxConfig. In this case, we fall back to
the class defaults in ADVANCED_CONFIG()
Avoid fractional pixel offsets by forcing integer division of m_screenSize.
Shift rounded lookAtPoint onto OpenGL pixel center to ensure consistent rounding to int.
The pixel 0..1 @ 1x needs to fill the area 0..2 @ 2x so its center moves by 0.5 * (pixel size @ 1x).
Seth Hillbrand
Marek Roszko
Jeff Young
Wayne Stambaugh
Jon Evans
Johannes Maibaum
jean-pierre charras
Ian McInerney
Dominik Sliwa
david-beinder
Michal Schulz
Hajo Nils Krabbenhöft