<div dir="ltr">Hi Lawrence,<br><div class="gmail_extra"><br><div class="gmail_quote">2016-08-03 23:32 GMT+02:00 Lawrence D'Oliveiro <span dir="ltr"><<a href="mailto:ldo@geek-central.gen.nz" target="_blank">ldo@geek-central.gen.nz</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span class="">On Wed, 3 Aug 2016 11:51:57 +0200, Guillermo Rodriguez wrote:<br>
<br>
> 2016-08-03 11:33 GMT+02:00 Lawrence D'Oliveiro<br>
> <<a href="mailto:ldo@geek-central.gen.nz">ldo@geek-central.gen.nz</a>>:<br>
><br>
</span><span class="">>> For comparison, Macintosh Color QuickDraw was capable of drawing<br>
>> full-colour, full-screen graphics at interactive speeds on a 25MHz<br>
>> Motorola 68040 processor in 1993--within the above limitations.<br>
><br>
> So did the Commodore Amiga on a 7MHz Motorola 68000 CPU at 1987 :)<br>
<br>
</span>No it didn’t. The best it could manage was “HAM”, which was<br>
sort-of-12-bits-per-pixel, with limitations.<br></blockquote><div><br></div><div>Yes, you are right :)</div><div>(Later, AGA introduced a modified HAM which was sort-of-18-bits-per-pixel, with the same limitations)</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
When I said “full-colour”, I meant “24 bits per pixel”.<br>
<span class=""><br>
> Which suggests that there should be no need to go for a "less resource<br>
> intensive" solution with today's CPUs.<br>
<br>
</span>QuickDraw was much less resource-intensive than Cairo. Also much less<br>
sophisticated. Which is why I brought it up.<br></blockquote><div><br></div><div>I know. My point was that if QuickDraw could do that on a 25MHz Motorola 68040, then there's no reason why Cairo shouldn't work just fine with today's embedded CPUs (especially if hardware floating point is available), even if a GPU is not available/not usable. Sure, Cairo is more sophisticated, but the hardware is much more powerful also.</div><div><br></div><div>Guillermo</div></div></div></div>