PiSCSI
Support original Powerview resolutions over analog via HDMI converter
Info
- Which version of Pi are you using: Rasp Pi 3
- Which github revision of software: feature_powerview 22.02.01
- Which board version: Newest?
- Which computer is the RaSCSI connected to: Mac SE/30
Describe the issue
The Powerview implementation sits in a window in a minimum resolution of 1024x768. I would like to use an HDMI->VGA converter to display the original resolutions on a CRT. Since the Powerview control panel shows options for Apple 12" RGB Monitor (512x384), 13" VGA Monitor (640x480), and SVGA monitor (800x600), the rascsi should change output resolutions to match.
For 640x480 and higher, an HDMI->VGA adapter should just work out of the box, since 640x480@60Hz is a supported HDMI resolution.
It would be great if 512x384 were also supported, but I'm pretty sure this is below what any HDMI converter would expect, so a a 1024x384 image (or something similar) might need to be constructed. MiSTerFPGA uses this principle to output 240p video via HDMI->VGA converters to standard resolution TVs.
