[svn-r8781]

Purpose:
HDF5 now supports SZIP with no encoder.

Description:
SZIP can be configured to have both encoder and decoder or just to have the decoder.  HDF5 can now query the configuration of any filter, and will throw errors if users try to write using a filter with encoding disabled.

Solution:
Added H5Zget_filter_info function, changed API for H5Pget_filter and H5P_get_filter_by_id.  See SZIP RFC.

Platforms tested:
Copper (fortran, C++, parallel), Sleipnir (C++), Arabica (fortran, C++), Verbena (fortran, C++)

Misc. update:

1 files changed, 12 insertions, 2 deletions

diff --git a/src/H5Ppublic.h b/src/H5Ppublic.h
index 4d1e027..89d3f6c 100644
--- a/src/H5Ppublic.h
+++ b/src/H5Ppublic.h
@@ -242,13 +242,23 @@ H5_DLL H5Z_filter_t H5Pget_filter(hid_t plist_id, unsigned filter,
        unsigned int *flags/*out*/,
        size_t *cd_nelmts/*out*/,
        unsigned cd_values[]/*out*/,
-       size_t namelen, char name[]);
+       size_t namelen, char name[],
+       unsigned int *filter_config /*out*/);
 #endif /* H5_WANT_H5_V1_6_COMPAT */
+#ifdef H5_WANT_H5_V1_6_COMPAT
 H5_DLL H5Z_filter_t H5Pget_filter_by_id(hid_t plist_id, H5Z_filter_t id,
        unsigned int *flags/*out*/,
        size_t *cd_nelmts/*out*/,
        unsigned cd_values[]/*out*/,
-       size_t namelen, char name[]);
+       size_t namelen, char name[]/*out*/);
+#else /* H5_WANT_H5_V1_6_COMPAT */
+H5_DLL H5Z_filter_t H5Pget_filter_by_id(hid_t plist_id, H5Z_filter_t id,
+       unsigned int *flags/*out*/,
+       size_t *cd_nelmts/*out*/,
+       unsigned cd_values[]/*out*/,
+       size_t namelen, char name[]/*out*/,
+       unsigned int *filter_config/*out*/);
+#endif /* H5_WANT_H5_V1_6_COMPAT */
 H5_DLL htri_t H5Pall_filters_avail(hid_t plist_id);
 H5_DLL herr_t H5Pset_deflate(hid_t plist_id, unsigned aggression);
 H5_DLL herr_t H5Pset_szip(hid_t plist_id, unsigned options_mask, unsigned pixels_per_block);