Timothy Miller wrote:
On 8/8/06, James Richard Tyrer <[EMAIL PROTECTED]> wrote:
Timothy Miller wrote:
> Are you saying interlacing is not an option here?
We could do interlacing, but interlaced text can cause problems.
IBM and other early systems that used a TV were not interlaced.
OTOH, modern game systems are probably interlaced.
If we do use interlacing, we need to send exactly the same frame to both
fields. Otherwise, moving text is impossible to read and not at all
pleasant to look at.
Hmmm.... I had assumed we'd send alternating scanlines. I suppose we
could do 640x200. But I'd really like to see what interlacing looks
like when you try not use the same data each field. I remember not
being so bothered by it when seeing an Amiga.
No, not the same lines, the same frame. The contents of the frame
buffer can't change between fields -- it has to be the same for both the
odd and even fields of the frame. Otherwise the screen looks like crap
if anything moves. The only way I know to accomplish this would be with
exchange buffering.
--
JRT
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