Re: [Openexr-user] command line utilities to join tiled images?

[Stephen Sloan]

Thanks so much Florian

 

I tried altering line 217 from "8.0" to "16.0" and it didn't allow the make check to pass so I disabled the euler call with a return as suggested. This allowed the ImathTest to pass. Then I got quite a ways through IlmImfTest before it failed when trying to open a blank file:

 

Error -- caught exception: Cannot open image file "imf_test_rgba.exr". Cannot initialize semaphore (No such file or directory).

assertion "false" failed: file "testRgba.cpp", line 418

 

Then if i comment this out it still catches on the same issue (no such file) in a later process. This is with a fresh download of cygwin so if there is something obvious I'm doing wrong I'm all ears :-)

 

Thanks

Steve 

 

 windows xp pro version 2002, service pack 2, hp workstation xw8200 dual xeon 3.8g, 3+GB ram, nvidia quadro fx3450 

 

On 8/29/06, Florian Kainz <address@hidden> wrote:

For older versions of Windows we had to disable the code
in testExtractEuler.cpp because it failed for no good reason.
We thought it was a compiler bug, but it could also be a
problem with some library that is used by both Visual C++
and cygwin.

Try changing line 217 in testExtractEuler.cpp from

    float eps = 8.0 * limits<float>::epsilon();

to

    float eps = 16.0 * limits<float>::epsilon();

If make check still fails, disable the test by putting a return
statement at the beginning of function testExtractEuler(),
at line 240.  If make check succeeds after that, you can use
the OpenEXR libraries (they don't use Euler angles).  Just don't
call the Euler angle extraction functions in your own code unless
you figure out how to fix them.

Florian


Stephen Sloan wrote:
> Good suggestion!
>
> the g++ I had was 3.4.4-1 - the only newer version I saw using the
> cygwin setup was 3.4.4-2 - I installed and it made without erroring out!
>
> then I ran make check and all test passed until I got to ImathTest which
> failed...
>
> Testing extraction of rotation angle from 3x3 matrices
> assertion "Imath::equal(angle, angleEx, eps)" failed: file
> "testExtractEuler.cpp", line 229
>
>
> On 8/29/06, *Alexander Stohr* < address@hidden
> <mailto: address@hidden>> wrote:
>
>     update g++ to something newer?
>
>     ----- Original Message -----
>     *From:* Stephen Sloan <mailto: address@hidden >
>     *To:* address@hidden <mailto: address@hidden>
>     *Sent:* Tuesday, August 29, 2006 9:29 PM
>     *Subject:* Re: [Openexr-user] command line utilities to join tiled
>     images?
>
>
>     THanks for the suggestions guys - I'm trying to use pfscat from
>     pfstools which will cat images together either vertically or
>     horizontally - it will take two steps [combine horizontaly - then
>     combine those results vertically] instead of a single one but it
>     will work with openexr. However I'm having trouble getting openexr
>     to compile under cygwin - has anyone succesfully compiled the linux
>     version under cygwin? I get these errors:
>
>      g++ -DHAVE_CONFIG_H -I. -I. -I../config -I../Half -I../Iex
>     -I../Imath -I../IlmThread -I../config -pipe -g -O2 -MT "" -MD -MP
>     -MF .deps/ImfTimeCode.Tpo -c ImfTimeCode.cpp -DPIC -o
>     .libs/ImfTimeCode.o .libs/ImfTimeCode.o:1: sorry, unimplemented:
>     inter-module optimisations not implemented yet
>     make[1]: *** [ ImfTimeCode.lo] Error 1
>     make[1]: Leaving directory '/tmp/openexr- 1.4.0/IlmImf'
>     make: *** [all-recursive] Error 1
>
>     Thanks for any and all suggestions
>
>     I'm rendering in tiles from gelato which I then want to simply
>     combine to form the original image - and I'd rather not use a shake
>     license for such a simple task if I can help it
>
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