Haggi, were you able to test this pull request to see if it addresses the
plugin issue?
-- lg
On Mar 25, 2015, at 11:08 AM, haggi krey <[email protected]> wrote:
> Great, I'll try it as soon as possible.
>
> haggi
>
> Am 25.03.2015 um 07:50 schrieb Larry Gritz:
>> Haggi, try this: https://github.com/OpenImageIO/oiio/pull/1100
>>
>> This is against master, but it should be straighforward to apply the same
>> patch to RB-1.5.
>>
>> See if that clears things up (of course, modify your code to use destroy()
>> rather than call delete directly).
>>
>> -- lg
>>
>>
>> On Mar 24, 2015, at 11:22 PM, Larry Gritz <[email protected]> wrote:
>>
>>> I have an icky suspicion... I understand that in Windows, it's dangerous to
>>> have memory allocated in one DLL but freed in another. So I'm worried about
>>> that call to create (allocate in the OIIO DLL) and subsequent delete in the
>>> Maya DLL.
>>>
>>> For ImageCache and TextureSystem, we have destroy() functions to go along
>>> with create(), to ensure that the deletions happen in the right DLL's
>>> memory arena. I don't see those for ImageInput/ImageOutput, but now I'm
>>> thinking maybe they are needed.
>>>
>>> I'll prepare a patch for you to try, to see if this addresses the problem.
>>> Stay tuned.
>>>
>>>
>>> On Mar 24, 2015, at 1:38 PM, haggi krey <[email protected]> wrote:
>>>
>>>> Hi,
>>>>
>>>> I have a problem using OpenImageIO for writing exr files if I use it in a
>>>> maya plugin on Windows.
>>>> I used it to write the final results of my mayaToCorona renderer plugin
>>>> what works fine unless I try to unload the plugin.
>>>> Then maya freezes completly.
>>>>
>>>> Today I tried to use it to write a Arnold exr driver which enables the
>>>> writing of AOV with mixed bit depths what Arnold does not yet support.
>>>> Here an output driver is loaded during rendering and unloaded after
>>>> rendering and exactly the same happens. I use it with mtoa on windows.
>>>> As soon as Arnold tried to unload the driver after a rendering is done,
>>>> maya freezes.
>>>>
>>>> Maybe anyone has some experience with this or has any idea what is
>>>> happening here. I have tried the following:
>>>>
>>>>
>>>> OIIO::ImageOutput *out = OIIO::ImageOutput::create(filename);
>>>> delete out;
>>>>
>>>> The problem only appears if the filename is an exr file. With jpeg or
>>>> tiff, everything works fine without any problems.
>>>> So my idea was to check if the problem has something to do with openExr
>>>> itself so I tried to write a simple file with Imf tools:
>>>>
>>>> void writeExrTest()
>>>> {
>>>> int width = 512;
>>>> int height = 512;
>>>> const char *fileName = "c:/daten/testimage.exr";
>>>> Rgba *pixels = new Rgba[512*512];
>>>> RgbaOutputFile file(fileName, width, height, WRITE_RGBA);
>>>> file.setFrameBuffer (pixels, 1, width);
>>>> file.writePixels (height);
>>>> }
>>>>
>>>> And this worked fine - no blocking.
>>>> I use openExr 2.2 together with OIIO 1.5. Compiled with Visual c++ 11 on
>>>> Windows7.
>>>> Tomorrow I'll try to export an ass file and check if the same happens with
>>>> the standalone.
>>>> And I did not try it in release mode yet. I'll check it tomorrow.
>>>>
>>>> I'd really appreciate any ideas. Of course I can implement it completly
>>>> without OpenImageIO but I prefer to use it because it makes life easier.
>>>>
>>>> haggi
>>>>
>>>> _______________________________________________
>>>> Oiio-dev mailing list
>>>> [email protected]
>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>> --
>>> Larry Gritz
>>> [email protected]
>>>
>>>
>>>
>>> _______________________________________________
>>> Oiio-dev mailing list
>>> [email protected]
>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>> --
>> Larry Gritz
>> [email protected]
>>
>>
>>
>> _______________________________________________
>> Oiio-dev mailing list
>> [email protected]
>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>
>>
>
>
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
--
Larry Gritz
[email protected]
_______________________________________________
Oiio-dev mailing list
[email protected]
http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
