Re: [B2-devel] Rudimentary port to SDL2

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

Side note to point #1, regarding aspect ratio: the scaling only works, at
present, in fullscreen mode.  A means to scale in windowed mode might be
nice, although, I suspect it could require either a new setting, or a
modification to the "screen" setting's syntax.

On Sun, Aug 13, 2017 at 12:16 PM, David Ludwig <dl...@po...> wrote:

> 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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>
>