[sldev] [VWR] OpenJPEG backtraces (Robin Cornelius)

Robin Cornelius robin.cornelius at gmail.com
Sat Sep 22 07:51:34 PDT 2007


Dzonatas wrote:
> Argent Stonecutter wrote:
>> Finally, the original code is amusing because the "unsigned" type was 
>> introduced to C because people were having to cast ints to pointers to 
>> get unsigned arithmetic. Since this is arithmetic on pointers to begin 
>> with... :)
>> _______________________________________________
>>
> 
> Some compilers don't allow that to happen, so you cast them to unsigned.
> 
> 16 byte boundaries are needed for SSE. The instructions just before it 
> add the pad, which is just once and a little bit for the entire image. 
> The alignment in that part is not mandatory but helps avoid non 16 byte 
> aligned pointers later on.
> 
> 


Oh guys as a follow up i think this is this bug 
http://jira.secondlife.com/browse/VWR-1864

I was certainly seeing the crash in dwt_decode_tile() before i had a 
openjpeg with full debug (cause there are some inline functions there 
that the full trace shows).

Regards

Robin





More information about the SLDev mailing list