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Topic: Amount of data the LBB can manage (capacity) (Read 453 times) |
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michael
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Amount of data the LBB can manage (capacity)
« Thread started on: Sep 9th, 2015, 5:21pm » |
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I managed to create a program generator that converts a bmp image to compacted code to allow for making small reusable designs that you can transfer easily.
Here is the link
http://libertybasic.conforums.com/index.cgi?board=game&action=display&num=1440989107
My question is : How much program data can the BBC editor hold and can the size of the program cause any issues?
Here is a sample of what this generator can create using only code: (the data statements hold the bmp image data)
Code:nomainwin
open "Compressed BMP Data to Image project " for graphics_nsb as #1
u=0
#1 "trapclose [quit]"
ost$=""
read x,y
#1 "down;fill black"
while nst$<>"100000"
read nst$,t
if nst$="0" then r=0:g=0:b=0 'black 0 0 0
if nst$="1" then r=192:g=128:b=64 ' brown 192 128 64
if nst$="2" then r=64:g=64:b=192 'dark blue 64 64 192
if nst$="3" then r=128:g=128:b=128' dark grey 128 128 128
if nst$="4" then r=128:g=0:b=0'dark red 128 0 0
if nst$="5" then r=224:g=192:b=0 'dark yellow 224 192 0
if nst$="6" then r=128:g=160:b=192'flat blue 128 160 192
if nst$="7" then r=32:g=192:b=64 'green 32 192 64
if nst$="8" then r=166:g=202:b=240'light blue 166 202 240
if nst$="9" then r=192:g=192:b=192 'light gray 192 192 192
if nst$="a" then r=192:g=224:b=0 'light green 192 224 0
if nst$="b" then r=224:g=32:b=64'light red 224 32 64
if nst$="c" then r=0:g=160:b=192 'medblue 0 160 192
if nst$="d" then r=224:g=128:b=64 'orange 224 128 64
if nst$="e" then r=224:g=160:b=192'pink 224 160 192
if nst$="f" then r=160:g=64:b=192'purple 160 64 192
if nst$="g" then r=192:g=220:b=192'tan 192 220 192
if nst$="h" then r=255:g=255:b=255'white 255 255 255
if nst$="i" then r=255:g=255:b=0'yellow 255 255 0
#1 "color ";r;" ";g;" ";b
for u=0 to t
a=a+1: print #1, "set ";c;" ";a+y :if a>x then c=c+1:a=0
next u
wend
wait
[quit]
close #1
end
data 56,56
data 3,170,9,227,h,170,4,284,1,113,b,170,e,170,d,113,5,170,i,170,g,170,7,170,a,170,c,170,8,113,2,170,6,170,f,170,100000,0
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| « Last Edit: Sep 9th, 2015, 5:40pm by michael » |
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Richard Russell
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Posts: 1348
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Re: Amount of data the LBB can manage (capacity)
« Reply #1 on: Sep 9th, 2015, 5:43pm » |
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on Sep 9th, 2015, 5:21pm, michael wrote:| My question is : How much program data can the BBC editor hold and can the size of the program cause any issues? |
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There are some limits. One is that the total number of lines should not normally exceed 65,535 because LBB stores the line number in two bytes (16 bits). There are also some individual limits, for example a maximum of 5000 globals and 5000 arrays - but if any of those limits are an issue for you I can quite easily increase them (and I have in the past).
One thing to watch is that the length of DATA statements is limited (to around 250 characters I think) so it's better to use a larger number of short DATA lines than a few much longer lines.
Richard.
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michael
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Re: Amount of data the LBB can manage (capacity)
« Reply #2 on: Sep 9th, 2015, 5:53pm » |
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Thanks. My program automatically makes the data lines short when it converts the image to data and generates the program (ready to run)
I will keep a note of this. Some of the huge complex images I have made into code are so large that they cant be copied with a clipboard.
The whole reason to making the utility was because I wanted reusable compact image tools in code and the ability to share it in one program without sending bmp files.
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Richard Russell
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member is offline
Posts: 1348
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Re: Amount of data the LBB can manage (capacity)
« Reply #3 on: Sep 9th, 2015, 6:24pm » |
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on Sep 9th, 2015, 5:53pm, michael wrote:| I wanted reusable compact image tools in code and the ability to share it in one program without sending bmp files. |
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When LBB embeds BMP (and other) files in an EXE it compresses them quite efficiently, almost as good as a ZIP. So if your concern is to minimize the size of the final executable you will probably be better to let LBB do the compression.
Richard.
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