Re: [Openexr-devel] IStream segfault with Windows release libraries (it works with debug)

[Piotr Stanczyk]

Thanks for the update
________________________________________
From: address@hidden address@hidden on behalf of Dalai Felinto address@hidden
Sent: 07 June 2013 00:59
To: address@hidden
Subject: Re: [Openexr-devel] IStream segfault with Windows release libraries    
(it works with debug)

Problem solved in my end.
The issue wasn't with IStream but with StringVector.

If anyone is curious about the fix:
https://github.com/dfelinto/blender/commit/181e780aa84122db540130e4cfbdf3240cf010d9

I'm still not sure if the original issue was due to bad code (mine),
or  MSVC is simply more restrict in returning a static StringVector
from a function. It's strange that it was working in Linux+OSX+Win
(debug).

Thanks anyways, and sorry about the noise in the list,
Dalai
--
blendernetwork.org/member/dalai-felinto
www.dalaifelinto.com


2013/6/5 Dalai Felinto <address@hidden>:
> Hi there,
>
> I'm having some troubles with openexr2.0 libraries for windows when
> building as Release.
> I'm still investigating the problem (which is not so easy given that
> Debug is working fine) but the segfaults starts when I open an exr
> with the call:
>
> Mem_IStream *membuf = new Mem_IStream(mem, size);
>
> In this case MEM_IStream is a struct inheriting IStream:
> http://www.pasteall.org/42868/cpp
>
> The entire code in this file can be found:
> https://svn.blender.org/svnroot/bf-blender/branches/multiview/source/blender/imbuf/intern/openexr/openexr_api.cpp
>
> This code is working fine in Mac, Linux (release and debug) and
> windows in debug mode.
> Windows libraries built with default options, but switching /MD[d] to /MT[d]
>
> Instructions:
> ilmbase: http://shadowrom.de/?page_id=237
> openexr: http://shadowrom.de/?page_id=241
>
> Compiled libraries:
> https://svn.blender.org/svnroot/bf-blender/trunk/lib/windows/openexr/
> https://svn.blender.org/svnroot/bf-blender/trunk/lib/win64/openexr/
>
> Has anyone experienced anything similar? Any hints on how to debug this?
>
> Many thanks,
> Dalai
> --
> blendernetwork.org/member/dalai-felinto
> www.dalaifelinto.com

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