RastPort.AreaInfo
16-Feb-95 16:03:32
Sb: #45617-RastPort.AreaInfo
Fm: Jim Maddox 74667,2175
To: Phillip Wooller 100024,2227
>> Officially it's called the FX chip, but the name on the chip was
>> (alledgedly) Mario.
Ah yes. I remember now.
>> This method (if you understand it, I don't think I would) should be
>> faster than drawing the lines then filling IF you are using the
>> processor.
Okay, I think I see what you're saying. If I'm using the CPU, I should do
this:
*
***
*****
***
*
instead of this:
* *
* * ***
* * -> then fill -> *****
* * ***
* *
Yeah, that makes sense.
>> The book only drew a line at a time and filled at the end, this way it
>> is constantly filling but calculating points along two lines
>> simutaneosly.
That's what I saw. It seems that using the blitter to fill and calculating
points in parallel should make things _quick_, though. The book isn't at all
quick, at least not in the first example — a 286-12 is more competent! And
yes, I know that the first example only used one buffer, so it wasn't doing
much parallel processing. But for parallel processing to speed it up very
much, the "line" drawing would have to take about the same amount of time as
the blitting. If the blitting takes a lot more time than the line drawing,
putting the line drawing in parallel won't speed things up very much, and vice
versa. :l
>> Sorry if this is really badly written but I am using the online editor
>> (telnetted from unix), during my lunch break and I am supposed to be
>> looking around the NOVELL area really.
Hey, you have my sympathy. I know what a pain that online editor is. 🙁
And I hope your boss doesn't visit this forum much. <g>
BTW, sorry for the lag in my response. I just got over two exams. 😛
– Jim, on AP!