Re: [B2-devel] Rudimentary port to SDL2

[David L. <dl...@po...>]

The SDL2 port should, in theory, already be scaling the guest OS'
resolution up to the host OS', albeit only in fullscreen mode.  What it
doesn't do, however, is:

1. maintain aspect ratio.  It'll stretch the guest OS' display to match the
host OS'.  SDL2 does have functionality to help with this, though.

2. use anti-aliasing when either of the scaling ratios have fractional
components.  This seems like an easy enough add, though.

I'll record TODOs/issues for both of these, at my port's repo (at
https://github.com/davidludwig/macemu).


On Sat, Aug 12, 2017 at 8:25 AM, Ricky Zhang <zha...@gm...>
wrote:

> Thanks for sharing this! This will be a superb work to renovate BII.
>
> I don’t mean to hijack your thread. But since you touch SDL2 topic, I
> wonder how to make it looks nicer in hi-res monitor. Even in 2K monitor
> nowadays, I think the font size and game screen is way too small.
>
> I know that mini Mac has zoom 2X feature. My educated guess is that the
> zoom implement this way — If there is a pixel like [x, y, RGB(r,g,b)], then
> zoom 2 X is to draw a 2X2 matrix:
>
> [x, y, RGB(r,g,b)],     [x+1, y, RGB(r,g,b)]
> [x, y+1, RGB(r,g,b)], [x+1, y+1, RGB(r,g,b)]
>
> I can imagine in some cases it won’t looks good. Thus, we need to smooth
> it with anti-aliasing. But this is beyond my expertise.
>
> If anyone has insight to solve this problem in hi-res, please let me know.
>
> thanks,
> Ricky
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