Hi,
after removing LibOpenJPEG from OIIO everything works as expected.
But what I need for building OIIO were some additional preprocessor
options (OIIO: LINKSTATIC EMBEDPLUGINS) under Windows:
PTEX_USE_STDSTRING;OPENEXR_DLL;PTEX_STATIC;
Thanks for the help,
Patrik
Am 20.03.2012 08:10, schrieb Larry Gritz:
OIIO doesn't throw exceptions, so there should be no need to enclose OIIO calls
in a try/catch block.
My understanding is also that get_imagespec should simply return false if it
can't open the file.
Try putting the following code right after the loadable = ... line:
std::cout<< "loadable = "<< loadable<< "\n";
if (! loadable) {
std::string err =
Im_ImageCache::GetInstance()->GetCache()->geterror();
std::cout<< "error was: '"<< err<< "'\n";
}
std::cout.flush();
What happens in that case? Does it ever print the "loadable=" line? Or does
it crash inside the get_imagespec() call itself?
Does it fail this way with any GIF file? Or only with a particular one? (If
so, can you send it to me?)
It's very strange that it would crash inside libOpenJPEG. Are you using any
JPEG-2000 files?
-- lg
On Mar 19, 2012, at 2:19 PM, [email protected] wrote:
Hi Larry,
sorry - English isn't my native language. What I want to describe:
I'm reading 3d models inside my application. Some old 3DS files have references
to GIF files as texture references. If I understand the documentation for
ImageCache these files should be ignored by ImageCache. What I do:
bool loadable = false;
try
{
loadable =
Im_ImageCache::GetInstance()->GetCache()->get_imagespec(tmpName, tmpSpec);
}
catch(...)
{
GetCache() is my reference to ImageCache. LibOpenJPEG is linked only inside
OIIO.
FROM my understanding of OIIO documentation get_imagespec should return false
if OIIO could not read the image format (for example a GIF file). Is this true?
But I don't get false as a return value, I always get the exeption from
j2k_decode.
Best regards,
Patrik
Am 19.03.2012 22:00, schrieb Larry Gritz:
Could you clarify exactly what you mean by: "Now I've got a link to a gif image for
loading. OIIO should ignore it..."
Do you mean that your application is also, separately, using LibOpenJPG on its
own and is holding an open handle of some sort? Of the same file?
-- lg
On Mar 19, 2012, at 1:49 PM, [email protected] wrote:
Hi all,
I've started using OpenImageIO as a replacement for FreeImage. Now I've got a
problem with LibOpenJPG, and I'm not sure if its an configuration problem or an
OIIO problem:
OIIO is compiled as a DLL with static linking for most of the plugins.
Inside my application I use the ImageCache. Now I've got a link to a gif image
for loading. OIIO should ignore it, but I always got an exception inside
Jpeg2000Input::open (...) in jpeg2000input.cpp:
opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t
*cstr_info) {
opj_image_t *image = NULL;
....
if (id>> 8 != 0xff) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker
instead of %x\n", cio_tell(cio) - 2, id);
return 0;
OpenImageIO.dll!j2k_decode(opj_j2k * j2k, opj_cio * cio,
opj_codestream_info * cstr_info) Zeile 1798 C
Is this a known problem or a problem with my CMake settings?
OIIO is build for VC2010 64 bit debug version.
Thanks for any info,
--
Larry Gritz
[email protected]
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