GitLab

These options are intended for mobile devices where aspect ratios
wider than 16:9 recently became widespread.

If currently using a 21:9 or 32:9 aspect ratio, the user will have to
adjust their settings to get their old aspect ratio back.

reload widescreen_hack_aspect_ratio_setting where widescreen_hack
is reloaded, make 16:9 the default setting when not set, and actually
check when widescreen_hack or widescreen_hack_aspect_ratio_setting has
changed

Adds an option to set the aspect ratio of the widescreen hack. Choices:
 16:10
 16:9 (default)
 21:9
 32:9

Beetle PSX implementation of "psx.correct_aspect" introduced in Mednafen
1.24.0-UNSTABLE (no relevant code backported from upstream).
Additionally fixes aspect ratio scaling issues when cropping overscan or
adjusting visible scanlines. "Force 4:3" is left as a legacy option for
users preferring the old inaccurate behavior.

Delay VRAM framebuffer size calculation to latest possible moment in
Vulkan renderer; don't rely on external timing of UpdateDisplayMode.

64-tap resolve shader, why not?

Avoids having to rely on software raster to run in parallel with HW rendering.

Looks better as we don't have a 16x16 block resolver yet.

Removes some pixellation from certain MDEC sequences which feature stark
red or blue detail (RE1 for example).

This filtering is done in one pass, so it's rather heavy, but the
resolution is low enough it shouldn't matter.

Looks a bit more coherent with mixed 2D and 3D in cases where adaptive
smoothing fails.

Also allows CRT-style shaders to work better as they expect 240p input
usually.

Also fixes a small regression in which shaders are built for
downsampling and cleans up some ugly code w.r.t filters.

- Calculate and apply offset for quads with flipped UVs earlier.
- Reduce offsets applied in software renderer as resolution scaling increases (fixes line artefacts).
- Calculate UV limits used for filtering earlier and pass these to the individual renderers.

De-hardcode the sample rate, framerate, width/height.
Get rid of an awkward function.
Style nits here and there.