Re: [cc65] TGI pixel aspect ratio

Hi,

>> I think a way for the driver to share the pixel aspect ratio information
>> with the main program could be a nice addition.

> the c64 has a pixel aspect ratio of 0.936:1 ...
>
> somehow it sounds overengineered to me to support that :)

The C128 standard (!) driver has a resolution of 640x200 - and a
potential future Apple2 double-hires driver would have 560x192 so I
tend to think it's in general not that devious.

I would however certainly not try to have any tgi coding "correct"
things but rather purely provide the application with the information
in the style of tgi_getcolorcount and tgi_getpagecount...

Regarding the overengineering: We should find a way to describe it in
one (signed ?) char.

>> It could be just a signed char, negative values meaning that
>> height > width. I know it's mathematically incorrect but it's handy.

I'm not sure if I fully understand. The C64 driver (and most others)
would have a value of 1. And the two drivers mentioned above would
have a value of 2 - correct?

My two cents: Seems very little effort to me and might turn out useful
for certain programs...

Best, Oliver
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