[sldev] Blurry avatar on own build

[Phoenix]

On 2007 Jan 12, at 10:21, Mark Wagner wrote:
> On 1/12/07, Björn Keil <abgrund at silberdrache.net> wrote:
>> Since the KDU libraries are are provided as is I cannot modify  
>> them, but
>> I wish I knew from where that call came... The solution seems simple,
>> one have to use the library in resilient mode. Basically the KDU  
>> library
>> is complaining that something that I don't understand about an image
>> stream is not quite according to the standard and therefore  
>> refuses to
>> process the image, even though it could. It shouldn't be too  
>> difficult
>> to fix that...
>>
>> I can only guess that a little playing around with llimagj2c.cpp,
>> especially the openDSO() method may help...
>
> There are two libraries involved: libkdu_v42R.so is the closed-source
> Kadaku library that does JPEG-2000 decoding.  libllkdu.so is the
> Linden Labs wrapper that interfaces between that and llimagej2c.cpp.
> libllkdu.so is the one you'd need to change to put the library in
> resilient mode, and I suspect the reason it's closed-source is that it
> contains the license key for using Kadaku.
>
> You're probably better off modifying the OpenJPEG library to be fast
> enough for practical use.  I haven't managed more than about a 5%
> speedup, but I haven't been trying too hard, either.

We've heard rumors that jasper was pretty good these days, but our  
tests several years ago showed it was very slow so we thought we  
would try openjpeg as the alternate. It would not be too hard to make  
an llimagej2cjasper project which exported an llimagej2c  
implementation to see if it was better.

We plan on revving the c++ api at least once in the future to make it  
more detached from the rest of the project like llmozlib.

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