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lz77 bios compression   Message List  
Reply | Forward Message #14693 of 15019 |
RE: [gbadev] lz77 bios compression

Heres the TWO emails that I have in archives with ref to lz77

-----Original Message-----
From: Alex Ganea [mailto:alex_toresh@...]
Sent: 22 February 2002 16:10
To: gbadev@yahoogroups.com
Subject: Re: [gbadev] lz77 bios compression

Ok here I go with the source (again), it's also for testing the new
attachement feature! thx mod btw ==D
Sorry for the incovenience.

PS: Note that this source was not written by me, the author is unknown.
I also written a C decompressor (for optimisation reasons), ask me if
you want it.

----- Original Message -----
From: Alex Ganea
To: gbadev@yahoogroups.com
Sent: Friday, February 22, 2002 10:35 AM
Subject: Re: [gbadev] lz77 bios compression


Hmm seems the attachement didn't make it. Here is the source:

-> Note to Mod: It would be nice to allow attachements? I know that
attachements gave rise to abuse in the past, but if you're filtering the
messages why not allowing that? I'm not sure that a deny policy is the
best here. Also note that the source I posted hasn't any copyrighted
material in it, LZSS is an algorithm free of use as far as I know.


[mod answer:
Ok, attachments are now allowed :) But please don't include
attachments without a good reason, and very small files only! If this
doesn't work out I will of course have to remove this privilege again. ]


------------------------------------- comp.h

[cropped by mod]


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Sun Jan 4, 2004 4:20 pm

kisyfier@...
Send Email Send Email

[gbadev] LZ & RLE unpackers

Hi ppl,
 
As it was requested by some guys, here is a small source which illustrates how the decompression works on the GBA-side. Only LZ&RLE is shown here, if somebody wants the other encoding schemes, feel free to ask.
 
Cheers,
Alex.
 
 
tomod: hope attachements are still allowed?
 


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Tue Mar 19, 2002 6:14 pm

alex_toresh@...
Send Email Send Email
Attachment
decompressors.zip
Type:
application/x-compressed
Re: [gbadev] lz77 bios compression

Ok here I go with the source (again), it's also for testing the new attachement feature! thx mod btw ==D
Sorry for the incovenience.

PS: Note that this source was not written by me, the author is unknown.
I also written a C decompressor (for optimisation reasons), ask me if you want it.

  ----- Original Message -----
  From: Alex Ganea
  To: gbadev@yahoogroups.com
  Sent: Friday, February 22, 2002 10:35 AM
  Subject: Re: [gbadev] lz77 bios compression


  Hmm seems the attachement didn't make it. Here is the source:

  -> Note to Mod: It would be nice to allow attachements? I know that attachements gave rise to abuse in the past, but if you're filtering the messages why not allowing that? I'm not sure that a deny policy is the best here. Also note that the source I posted hasn't any copyrighted material in it, LZSS is an algorithm free of use as far as I know.


  [mod answer:
  Ok, attachments are now allowed :) But please don't include attachments without a good reason, and very small files only! If this doesn't work out I will of course have to remove this privilege again. ]


  ------------------------------------- comp.h

[cropped by mod]
 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/



Fri Feb 22, 2002 4:10 pm

alex_toresh@...
Send Email Send Email
Attachment
lz77Comp.zip
Type:
application/x-compressed
Forward
Message #14693 of 15019 |
Expand Messages Author Sort by Date

Hi people, Does anybody have a LZ77 bios-compatible compressor for binary data? I want to include some large data inside my demo, and I want to use the bios...
Ricardo Bittencourt
ricbigmilk
Offline Send Email
Feb 22, 2002
1:18 am

... I haven't seen a general-purpose compressor of this nature - GFX2GBA claims to do this for sprite data, but I've had odd results testing it, so the format...
Adrian Jackson
iapetus_98
Offline Send Email
Feb 22, 2002
12:04 pm

Someone posted this a while before, I dont rember where, and I dont know it was. Anyway once compiled, the source here generates a GBA-compatible LZ77 stream....
Alex Ganea
alex_toresh
Offline Send Email
Feb 22, 2002
3:25 pm

Hmm seems the attachement didn't make it. Here is the source: -> Note to Mod: It would be nice to allow attachements? I know that attachements gave rise to...
Alex Ganea
alex_toresh
Offline Send Email
Feb 22, 2002
3:58 pm

Ok here I go with the source (again), it's also for testing the new attachement feature! thx mod btw =D Sorry for the incovenience. PS: Note that this source...
Alex Ganea
alex_toresh
Offline Send Email
Feb 22, 2002
4:18 pm

i try using the compression code and it seem to work for 8-bit but not for 4-bit. do anyone have this problem? thanks ... attachement feature! thx mod btw =D ...
scn700
Online Now Send Email
Apr 9, 2002
8:44 am

... While converting TOD from another compression package to this agbcomp clone, I discovered what appears to be a slight problem with the compression code: it...
yerricde
Offline Send Email
Jul 4, 2002
11:04 pm

sorry to dig up such an old topic to reply to, but I think this is relevant ... I think I'm running into this problem with the compressor -- I really want to...
Dennis Munsie
bea_dennis
Offline Send Email
Oct 5, 2002
12:30 am

... I don't use any piece of code without knowing my rights. After opening and reading the code, I realized that not only was the data format familiar, but so...
yerricde
Offline Send Email
Jul 4, 2002
4:19 pm

quick follow-up to my previous message (which hasn't made it back to my mailbox yet) -- I quickly made a change to decompress to WRAM instead, and then DMA...
Dennis Munsie
bea_dennis
Offline Send Email
Oct 5, 2002
12:31 am

Heres the TWO emails that I have in archives with ref to lz77 ... From: Alex Ganea [mailto:alex_toresh@...] Sent: 22 February 2002 16:10 To:...
Chris White
kisyfier@...
Send Email
Jan 6, 2004
5:46 pm

Yes I found those too but as I guess you also noticed you can't access the attachments (I guess they're not saved). Anyway, I got the source now. -- Jonas...
jonas_minnberg
Offline Send Email
Jan 6, 2004
9:25 pm

... without a good reason, and very small files only! If this doesn't work out I will of course have to remove this privilege again. ] AAAAAA! Attatchments...
John Q. Pretentious
johnisaheadcase
Online Now Send Email
Feb 23, 2002
1:21 am

No I don't think so, but as I said before it's only for educational purposes, it's not meant to be fast, it's up to you to optimise it. Alex. ... From:...
Alex Ganea
alex_toresh
Offline Send Email
Jul 4, 2002
5:28 pm
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