OpenEuphoria

Faster way

• Posted by dubetyrant at hotmail.com Dec 25, 2002
• 409 views

Hello all,
--------------------------------------------
Faster way?

Don't know but you could try this...

Regards,
Mike

integer wsColor
wsColor = 255

image = (image = wsColor) * background + (image != wsColor) * image
--This ones going to take a bit of study,are you saying I should
approach it like I was doing one large operation on sequence "image"
I didnt even know you could use inequality statements as operands.

I would see if it couldn't be done in assy code, if you could get the 
pointers
to the bitmaps. Aren't there some graphics libs in the archives in machine
code?

Kat

--Thats one thing Ive got to do more is study the code in the archives
closer,theres probably more than one library that would help.But as
far as doing it myself in assembly,I dont know where to start.
--your my new best friend,I would pay good money to hear stuff like
that!(joke)
Please do not apologise for being here; we need more of your type.
Besides, watching another newbie smack their head into the same old
brick wall [1] is always more instructive that listening to some old
hack argue about some semicolon or other.

Pete
[1] as well as being funny [(;-P)]
[2] only joking there, of course.
--seriously your reply made my day,I appreciate the encouragement.Its
hard to ask people to help you figure something out,knowing that you
probably wont be able to return the favor anytime soon.
you would simply overlay any whitespace found (255) with the image data
at that same location.
also you are using the 'length' function in your loop control statement.
each time this statement is executed so would the length function be
re-calculated.
calculate it once prior to entering the loop would help.

--I thought that the images came in as nested sequences,one sequence
for each row on the display screen.But your reply made me think that
if I somehow converted the multiple sequences into just one sequence
somehow,it would make it faster to work on it.But Im not really sure
that they do not just read in as one sequence.

seqsize = length(image)
for i = 1 to seqsize by 1 do
if image[i] = 255 then
image[i] = background[i]
end if
end for

Merry Christmas and Happy New Year to All Euphorians
Rudy
lotterywars


(untested)

for i = 1 to length(image) do
    image_row = image[i]
    back_row = background[i]
    for j = 1 to length(image_row) do
        if image_row[j] != 255 then
            back_row[j] = image_row[j]
        end if
    end for
    background[i] = back_row
end for


--Thats pretty much what I was looking for, a way to speed up the
comparison of two nested sequences with the same amount of elements.I worry 
about my code taking "the long way around" and I knew that if someone with 
more experience looked at how I was doing it they would probably know some 
tips right away.

So thanks to all!!
And merry Christmas to you and yours!!!
-JDUBE