add DICOM (aka supp 145) support #142 Build Problem

[Ivo Rakar]

Hi Mathieu!


>> Thank you for your help, unfortunately this time I got the following
>> message:
>>
>> Assertion failed!
>>
>> Program: C:\Program Files\Java\jre1.8.0_31\bin\javaw.exe
>> File: src/openslide-decode-dicom.c, Line 933
>>
>> Expression: stream

>This line (although a little cryptic) indicate that the file could not
>be open for reading. I suspect you entered an invalid path:

>
https://github.com/malaterre/openslide/blob/dicom-wsi/src/openslide-decode-dicom.c#L933

>You may want to print what's in `err` just to be sure.

Sorry for the late response, I tried to resolve the problem but I don't
seem to find a solution.

The error in C is the following:

"Couldn't open .\DOG15_20: No such file or directory"

I have downloaded dcmtk from offis and run the following commands in
 cygwin:

$ mv Dog_15x15_20x.dcm DOG15_20
$ mv Dog_15x15_40x.dcm DOG15_40
$ dcmmkdir --output-file DOGDIR --general-purpose-dvd DOG15_20 DOG15_40

Every file is in the same directory.



On 11 September 2015 at 09:13, Mathieu Malaterre <
mathieu.malaterre at gmail.com> wrote:

> On Thu, Sep 10, 2015 at 10:50 PM, Benjamin Gilbert <bgilbert at cs.cmu.edu>
> wrote:
> > On 09/10/2015 03:10 AM, Mathieu Malaterre wrote:
> >> On Thu, Sep 10, 2015 at 7:06 AM, Benjamin Gilbert <bgilbert at cs.cmu.edu>
> wrote:
> >>> I've seen
> >>> <https://github.com/uclouvain/openjpeg/issues/376>; are there other
> >>> problems with OpenJPEG?
> >>
> >> Long story short, this should not be an issue for OpenSlide, since you
> >> pretty much require direct file access, so fread should be pretty
> >> cheap (ideally would need an fseek instead).
> >
> > Ah, I misunderstood your use of "streaming" in that bug.  I thought #376
> > covered the material actually covered by #94.
> >
> >> Again this is OT here, but even if #94 gets fixed other part of code
> >> will need to be updated. Right now OpenJPEG requires enormous amount
> >> of memory if you request the bottom-right pixel, which makes OpenSlide
> >> pretty much useless for JPEG2000/WSI.
> >
> > Do you think this will be fixed within a small number of years?
>
> Honestly, I do not believe so. #94 is just the tip of the iceberg, I
> know however that Antonin has been working very hard to find
> fundings...so we'll see.
>
> As explained in my other mail, with a little bit of luck
> Aperio/Ventana do not make use of precincts, but instead use tiles.
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