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Re: [lwip-users] makefsdata strange error with .png files


From: Mason
Subject: Re: [lwip-users] makefsdata strange error with .png files
Date: Wed, 04 Jan 2012 17:05:22 +0100
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20111221 Firefox/9.0.1 SeaMonkey/2.6.1

N.Karakotas wrote:

> I'm using the makefsdata.pl perl script to create the html data. I
> was having a strange problem with .png files not showing up on the
> browser. After tracing the problem I noticed that the array data
> created by the perl script was missing 1 byte of data at the beginning 
> of the png header. For example here are the bytes of the images:
> 
> Correct:
> 89 50 4E 47 0D 0A 1A 0A 00 00 00
> 
> Wrong:
> 89 50 4E 47 0A 1A 0A 00 00 00

0x0D = ASCII carriage return (CR). 0x0A is ASCII line feed (LF).

http://en.wikipedia.org/wiki/Carriage_return
http://en.wikipedia.org/wiki/Line_feed

On Unix, '\n' is LF. On Windows, '\n' is CRLF.

Thus, your PNG header was unixified :-)

-- 
Regards.



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