[Bf-committers] OpenEXR crash in windows

[Ton Roosendaal]

Hi,

I've seen regularly tracker reports from Windows users about OpenEXR crashes.
Below is a tip from the openexr list about proper configuration of MSVC for it.

-Ton-

--------------------------------------------------------
Ton Roosendaal  -  ton at blender.org   -   www.blender.org
Chairman Blender Foundation - Producer Blender Institute
Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands



Begin forwarded message:

> From: Michael Reinhardt
> Subject: Re: [Openexr-devel] [Half] HalfTest Failure
> Date: 11 September, 2013 17:16:52 CEST
> To: openexr-devel at nongnu.org
> 
> Hi,
> 
> from my point of view, this is a know bug in the Visual Studio compiler configuration. I had the same issues some months ago.
> See my mail from 25 May 2013 in order to fix this issue.
> 
> Quote from the mentioned mail:
> 3. Correct the export definition in halfExport.h.
> As Peshala correctly stated, the PLATFORM_WINDOWS keyword is never defined in the VS project files. The other base libraries as IlmThread use another way to define their *EXPORT keyword (,which work flawlessly). I simply adjusted their definition to the half project. As a result you will get this content for halfExport.h (remove every other line of code).
> 
> #if defined(OPENEXR_DLL)
>     #if defined(HALF_EXPORTS)
>         #define HALF_EXPORT __declspec(dllexport)
>         #define HALF_EXPORT_CONST extern __declspec(dllexport)
>     #else
>         #define HALF_EXPORT __declspec(dllimport)
>         #define HALF_EXPORT_CONST extern __declspec(dllimport)
>     #endif
> #else
>     #define HALF_EXPORT
>     #define HALF_EXPORT_CONST extern const
> #endif
> Additionally, you should check the VS project files for the correct definition of OPENEXR_DLL (Half and HalfTest) and HALF_EXPORT (only Half).
> 
> 
> FYI: The same export definition bug can be found in the Iex project. Although, this does not expose any error in the supplied test suites.
> 
> I hope this helps.
> Michael
> 
> 
> Am 11.09.2013 15:15, schrieb Julien:
>> Hi,
>> i have exactly the same problem on windows 7 64 bits.
>> My CPU is an Intel Xeon E5620 (i7 based).
>> 
>> On release i've got (it seems coding the number 3 as a half fails) :
>> 1>  f1 = 1, f2 = 2, h1 = 0.00370026, h2 = 4, h3 = 5
>> 1>  h1 = f1 + f2: 0.00370026
>> -> Crash
>> 
>> On Debug its worse i have:
>> 1>  f1 = 1, f2 = 2, h1 = -8.05855e-005, h2 = 0.595703, h3 = 0.720703
>> -> Crash
>> 
>> Thanks,
>> 
>> Julien
>> 
>> 
>> _______________________________________________
>> Openexr-devel mailing list
>> 
>> Openexr-devel at nongnu.org
>> https://lists.nongnu.org/mailman/listinfo/openexr-devel
>> 
>> 
>> 
> 
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