[BLACKBOX] AW: [BLACKBOX] Zlib under BlackBox?

From: [at]} <Helmut>
Date: Tue, 7 Oct 2008 21:39:09 +0200

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Dear Oleg,

about the result error with data size > 32767:

If you change inside ZipInflate the line
        CONST WindowSize = ASH(1, WindowBits);
agains
        CONST WindowSize = 2 * ASH(1, WindowBits);
then it work until 65535.

Or rewritten this line for easier understanding
        CONST WindowsSize = 32768;
agains
        CONST WindowsSize = 65536;

I know that doesn't solve your problem. You need a solution which works with
any length.

It may help you to get a step further...

Please let me know how it is going on about Zlib.

Regards

Helmut Zinn
http://www.zinnamturm.eu


 

> -----Ursprüngliche Nachricht-----
> Von: BlackBox [mailto:BLACKBOX{([at]})nowhere.xy
> Cher
> Gesendet: Sonntag, 5. Oktober 2008 09:41
> An: BLACKBOX{([at]})nowhere.xy
> Betreff: [BLACKBOX] Zlib under BlackBox?
>
> Hello All,
>
> Want anyone help me to fix Zlib problems?
> I have taken Zlib sources from here:
> http://www.inf.ethz.ch/personal/felixf/WinAos/WinAos.r1575.zip
>
> Bluebottle ideology implies type LONGINT as 32 bit.
> BB has INTEGER as 32 bit. I entered new type BASEINT,
> it'is base when working with integer numbers,
> and changes of AOS type LONGINT (BB INTEGER is enough).
> And I made some several other changes.
>
> As result:
>
> ZlibDeflate.Compress works fine, on data with small and big size.
> (Tested on file = 18 Mb, all is good)
>
> ZlibInflate.Uncompress works good for data < 32768 bytes
> (= ZlibInflate.WindowSize), and stably returns Zlib.BufError (-5)
> on data > 32768 bytes) (Size of destination buffer is enough!).
>
> Maybe some of the clever people here
> will say me how to fix this problem?
>
> Sources are here: http://stefcr.mgslab.com/files/Zlib.zip
> Thank you.
>
> --
> Oleg N. Cher.
>
>
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Received on Tue Oct 07 2008 - 21:39:09 UTC