Your code does just about everything wrong that you could possibly do
wrong.
Imagine this, you want to walk down a street.
You take one step down the street.
You then stop walking, to open your mobile phone to your sweetheart
and say "hey, I've moved one step down the road, I'll be there soon!"
Then you end the phone call and put your phone away.
You take another step down the street.
Then you make ANOTHER phone call to her, "hey I've moved one step
down the street!"
Ridiculous.
But that's exactly what your code is doing.
Also, you shouldn't put anthing but an integer constant on the end of
a for loop. for i = 0 to iEnd (Where iEnd is a local integer) would
be better.
You aren't using any pragmas. Put the disablebackgroundtasks pragma
in there. That'll give you a 2 or 3x speed up.
The best way to do progress updating, is first DON'T do it, and see
if it's slow enough that it needs it. If it DOES need it, then don't
even think about updating on every loop. Update on every 50th loop or
something like that. And after every 50th loop, STILL don't update,
but instead check the Ticks() function to see if a second has passed
since your last update.
On 30 Dec 2005, at 02:22, Ben Farhner wrote:
Well I got it all sorted out by removing the progress bar and
replacing it with chasingarrows. I wish I could use the
RGBSurface.Transform(), but its not available in 5.2.4. Is it still
possible to get 5.5?
Ben Farhner
CEO / Head Developer
farhnware
http://macware.byethost5.com
Hi,
Okay, I have a thread that reverses an image. Heres the code:
for i=0 to p.width-1
for j=0 to p.height-1
c=r1.pixel(i,j)
r2.pixel(i,j)=rgb(255-c.red,255-c.green,255-c.blue)
progress.prog.value=progress.prog.value+1
next
progress.prog.value=progress.prog.value+1
next
The problem is, that takes over 8 seconds. Other programs, such as
Seashore, do it instantly. I'm using RGBSurfaces, which is supposed
to be faster, but is there a faster way? I'm on RB 5.2.4, Mac OS X
10.4.3. Thanks,
Ben Farhner
CEO / Head Developer
farhnware
http://macware.byethost5.com
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