NDPI format support in OpenSlide - are there any forecasts?

[Benjamin Gilbert (OpenSlide)]

On Mon, October 8, 2012 12:33 am, toto sugito wrote:
> NDIP file have some of jpeg file. So, if we want to read selected jpeg
> file in NDPI file, we must extracted that file AND using code at
> "openslide-ops-jpeg.c" to read that jpeg file.
> Or the code must be read that file without extract selected image in NDPI
> ?

The vendor (e.g. NDPI) driver configures the JPEG backend with a list of
filename/offset/length tuples for individual JPEGs.  The JPEG backend
reads the images in place.  There's no extraction step.

Some programming hints and documentation on the OpenSlide architecture are
available here:

https://github.com/openslide/openslide/wiki/AddingASlideFormat

--Benjamin Gilbert