[quoted lines by Nicolas Pitre on 2025/05/09 at 17:40 -0400] >Most sighted people will tell you that such a small character font on a >Full HD monitor is visually too tiny to be practical.
Well ... I think we need to wonder, then, why his default is 480x135. Also, even if a regular monitor would create characters that are rather small, large monitors will probably be easy to read. What I know is that when I've had a regular monitor connected to my 240x67 cofigurtion, no sighted person has ever complained that it was too small. >Possibility #1: make all legacy values 0 As also with possibilities #2 through #4, anyone who's still running an old release of brltty would have an immediate, not-so-obvious probem. I myself don't like this kind of non-backward compatibility. >Possibility #2: To make it safer, we could instead do this: > - byte 0: legacy screen rows = 1 > - byte 1: legacy screen columns = 1 > - byte 2: legacy cursor x position = 0 > - byte 3: legacy cursor y position = 0 As unexpected as it might be, that'd still be a valid set of values. >Possibility #3: saturate the legacy header to signify presence of the >extended header: > - byte 0: legacy screen rows = 255 > - byte 1: legacy screen columns = 255 > - byte 2: legacy cursor x position = 255 > - byte 3: legacy cursor y position = 255 Better, as at least the cursor would be out-of-bounds, but still not backward compatible. >Possibility #4: open /dev/vcsa with O_LARGEFILE to enable the new >header. No guarantee that an older (maybe even the current) implementation of vcsa doesn't silently ignore it. >Possibility #5: create an ioctl to affect the header type. I like this one as we have to ask for it and will be told that it isn't supported by a previous implementation. >I'd still use the legacy header with 1,1,0,0 as a marker to flag out mistakes. I think that's unnecessary and adds needless copmlication. I'd also like to be able to know the real colour rather than just a set of VGA colour attributes. -- I believe the Bible to be the very Word of God: http://Mielke.cc/bible/ Dave Mielke | 2213 Fox Crescent | WebHome: http://Mielke.cc/ EMail: [email protected] | Ottawa, Ontario | Twitter: @Dave_Mielke Phone: +1 613 726 0014 | Canada K2A 1H7 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ http://mielke.cc/xmother.html (Letter from a Feminist ex-Mother) _______________________________________________ This message was sent via the BRLTTY mailing list. To post a message, send an e-mail to: [email protected] For general information, go to: http://brltty.app/mailman/listinfo/brltty
