Re: [cc65] 3dmaze portability

Hi Uz,

> No, not really. Calculating the intersection between the drawn line and one of
> the borders is a lot cheaper than checking the coordinates for each pixel.

I see.

> I didn't think of SetPixel. So, before I get the next thing wrong, let me say
> it this way: If clipping is easy and doesn't complicate things for the driver,
> it should be done in the wrapper.

Trying to rephrase in my words to be sure: By default clipping is done
in the wrapper. The only exception I'm aware of is tgi_circle.

> tgi_bar does clipping, dito tgi_setpixel and
> tgi_getpixel.

I found the tgi_bar clipping code in libsrc/tgi/tgi_bar.s but where's
the clipping code for tgi_[s|g]etpixel? I didn't find it in
libsrc/tgi/tgi_[s|g]etpixel.s

> tgi_line *should* do clipping but doesn't.

I see.

Best, Oliver
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