flat assembler
Message board for the users of flat assembler.
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f0dder
One here: http://sourceforge.net/projects/jpegdec/
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Octavio
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Dex4u
If it's for the FBrowser project, i already have a bmp, gif, and jpeg decoder coded
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edfed
do you know what google do with your datas?
each time you google, big brother is watchin you. now, google=big brother. |
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drhowarddrfine
And he's watching you and you alone! He's sitting right outside your door, right now, because YOU have something he wants. It is YOU and only you that he needs. And he's going to get it from you. And your little dog, too.
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f0dder
<3 obsessive compulsive paranoia.
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edfed
i don't have pets.
http://www.news.com/FAQ-Protecting-yourself-from-search-engines/2100-1025_3-6103486.html http://www.guardian.co.uk/technology/2006/sep/07/askjack.guardianweeklytechnologysection http://www.guardian.co.uk/technology/2006/aug/17/guardianweeklytechnologysection.google http://www.privacyrights.org/ar/Ixquick.htm is it paranoïa? or reality? |
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dosin
lol
![]() I was not asking for people to search google for me.. just asking if anyone here had some docs..on this or a good website.. Sometimes if you ask.. Someone may have just programmed one and share sites they used/docs.. If I find any thing worth reading I hang on to it! There is a lot of junk out there to sort through! But yes I was going to try and decode a jpeg.. later on.. and i wanted to begin reading on it..and in the future I want to try to decode mpeg.. I read has simular compresion. Thanks again! |
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rugxulo
Look at Octavio's OctaOS for JPEG decoding srcs (and there's also a small 320x200-only DOS version he wrote, but you'll have to PM him or me for it, it's no longer attached on this forum).
EDIT: Well, it's small enough (the DOS version), so I may as well just attach it here (assuming Tomasz and Octavio don't mind, heh).
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dosin
Thanks,
I will take a look.. |
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edfed
*2
![]() project is running.........yeah!!! |
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dosin
edfed:
I have been working on finding out why the irq1 was having problems with the keyboard code you added.. I added a little to the rest of the ints.. and fixed that fault from happening.. but the int you coded is not working.. not sure why seams to be getting stuck? or something? not sure what it is... ![]() and then again I could be over looking something... But like I said.. I don't think this is needed just yet.. or the IDT.. really I just wanted to try something different..try with it with the vesa text in the ints.. I am going to keep working on a parser/driver for the project.. but for right now I am done with the keyboard for now - later I may try some of my keyboard code... to double check it.. |
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Octavio
rugxulo wrote:
jpeg.com is here: http://www.programmersheaven.com/zone10/cat453/index.htm but this program has a bug (some colors are not correct),the bug is corrected in the menuetos version of the program. To write this program i used documents found at http://www.wotsit.org/ and also looked at sources of some jpeg programs written in C. |
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edfed
dosin:
i think the main problem is in the interrupt handler, as it send me an invalid opcode if i replace Code:
include 'vesaconstant.inc'
by a Code:
...
include 'vesaconstant.inc'
...
call vesaconstant..
...
that's why vesaconstant.inc is directlly in the sequential source. about farpointers & fasm... Code: .. ... far_pointer df 0:0 ... ... far_pointer: dw 0 dd 0 ... .. octavio: jpg source code is like soup.... ![]() i am litterally impressed by the lengh of the source needed to decode jpg... i prefer bmp. |
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Dex4u
But there's a big difference between 64k for jpeg and 900k or so for a 640x480 24bpp bmp
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Octavio
edfed wrote:
Thats because is written in Fasm ,look at Octasm sources they are like a cake ![]() Dex wrote: But there's a big difference between 64k for jpeg and 900k what do you mean? |
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edfed
640*480 24bpp
bmp = 900 kbytes jpg = 64 kbytes |
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Dex4u
Dex wrote: But there's a big difference between 64k for jpeg and 900k Octavio wrote: what do you mean? I mean it may look alot of code (the jpeg decoder), but once its coded it save you alot of space, as jpegs are much small in size than bmp, so its worthit. |
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rugxulo
Dex4u wrote:
Yes, although there are various amounts of compression JPEG can use (even none, but I truly haven't seen such an example). Oh, and I'm sure you know that BMP can be compressed too (just not as well). P.S. Just for more dopey useless information (for trivia buffs like me), you can indeed (re)compress JPEG images (as something else entirely, not transparently). See Matt Mahoney's PAQ8o8. |
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