Re: [Openexr-devel] OpenEXR 1.5.0, OpenEXR-Images 1.5.0 released

[Andrew Kunz]

Hey Ken.

Thanks for the feedback.  The -pthread option was added as a ldflag
because it was neccessary when dependent libraries linked with OpenEXR on
Linux.

Currently, the test that is run by configure is compiled and linked in one
step, so configure on your platform is probably adding threading flags to
the link step that should not be included when compiling and linking are
separate steps.

Can you send me a dump of the messages you see when you run configure on
the IlmBase library, and also a copy of the IlmBase.pc file that gets
generated in your build directory?  Do you see these errors when you build
IlmBase, or only for OpenEXR?

Cheers,
Andrew




> Hi Florian,
>
> Many thanks for what appears to be a significant release.
>
> I have problems building this one though.  I am on a macbook pro under
> OSX with openexr-1.4.0 already installed.  I get the following
> warning for
> every source file compiled in the openexr library:
>
>      i686-apple-darwin8-g++-4.0.1: unrecognized option '-pthread'
>
> It then fails compiling exrheader with:
>
>      main.cpp: In function 'void printCompression(Imf::Compression)':
>      main.cpp:98: error: 'B44_COMPRESSION' was not declared in this
> scope
>      main.cpp: In function 'void printChannelList(const
> Imf::ChannelList&)':
>      main.cpp:265: error: 'const struct Imf::Channel' has no member
> named 'pLinear'
>
> After uninstalling the 1.4.0 version of openexr and starting over it
> built and installed
> correctly, however the -pthread warning still exists.
>
> Thanks again.
> --Ken
>
> On 16 Dec 2006, at 02:52, Florian Kainz wrote:
>
>>
>> December 15, 2006 - a new development version of OpenEXR is now
>> available.
>> We have tested the code in this version internally at ILM, but we
>> would
>> like to get feedback from others before we release a production
>> version.
>> You can download the source code and sample images from here:
>>
>> http://download.savannah.gnu.org/releases/openexr
>>
>> The new version includes several significant changes:
>>
>> * OpenEXR supports a new image compression method, called B44.  It has
>>   a fixed compression rate of 2.28:1, or 4.57:1 if used in combination
>>   with luminance/chroma encoding.  B44-compressed images can be
>>   uncompressed fast enough to support real-time playback of image
>>   sequences.
>>
>> * The new playexr program plays back moving image sequences.  Playexr
>>   is multi-threaded and utilizes the threading capabilities of the
>> IlmImf
>>   library that were introduced in OpenEXR 1.3.0.  The program plays
>> back
>>   B44-compressed images with fairly high-resolution in real time on
>>   commodity hardware.
>>
>> * The playexr program and a new version of the existing exrdisplay
>> image
>>   viewer both support color rendering via color transforms written in
>>   the new Color Transformation Language or CTL.
>>
>>   CTL is not part of OpenEXR; it will be released separately.
>>
>>   CTL support in playexr and exrdisplay is optional; the programs can
>>   be built and will run without CTL.
>>
>> * In preparation for the release of CTL, OpenEXR has been split into
>>   three separate packages:
>>
>>      - IlmBase 0.9.0 includes the Half, Iex, Imath and IlmThread
>> libraries
>>
>>      - OpenEXR 1.5.0 includes the IlmImf library, programming examples
>>        and utility programs such as exrheader or exrenvmap
>>
>>      - OpenEXRViewers 0.9.0 includes the playexr and exrdisplay
>> programs
>>
>> * The "Technical Introduction to OpenEXR" document now includes a
>>   recommendation for storing CIE XYZ pixel data in OpenEXR files.
>>
>> * A new "OpenEXR Image Viewing Software" document describes the
>>   playexr and exrdisplay programs.  It briefly explains real-time
>>   playback and color rendering, and includes recommendations for
>>   testing if other image viewing software displays OpenEXR images
>>   correctly.
>>
>> * The OpenEXR sample image set now includes B44-compressed files and
>>   files with CIE XYZ pixel data.
>>
>>
>>
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>>
>
>
>
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