diff options
Diffstat (limited to 'src/H5Z.c')
| -rw-r--r-- | src/H5Z.c | 53 |
1 files changed, 52 insertions, 1 deletions
@@ -574,8 +574,15 @@ H5Z_prelude_callback(hid_t dcpl_id, hid_t type_id, H5Z_prelude_type_t prelude_ty case H5Z_PRELUDE_CAN_APPLY: /* Check if there is a "can apply" callback */ if(fclass->can_apply) { + herr_t status; +#ifndef H5_SZIP_CAN_ENCODE + /* If this is the Szip filter, make sure it can encode */ + if (dcpl_pline.filter[u].id == H5Z_FILTER_SZIP) + HGOTO_ERROR(H5E_PLINE, H5E_NOENCODER, FAIL, "Filter present but encoding is disabled"); +#endif + /* Make callback to filter's "can apply" function */ - herr_t status=(fclass->can_apply)(dcpl_id, type_id, space_id); + status=(fclass->can_apply)(dcpl_id, type_id, space_id); /* Check return value */ if(status<=0) { @@ -1210,3 +1217,47 @@ H5Z_delete(H5O_pline_t *pline, H5Z_filter_t filter) done: FUNC_LEAVE_NOAPI(ret_value) } + +/*------------------------------------------------------------------------- + * Function: H5Zget_filter_info + * + * Purpose: Gets information about a pipeline data filter and stores it + * in filter_config_flags. + * + * Return: zero on success / negative on failure + * + * Programmer: James Laird and Nat Furrer + * Monday, June 7, 2004 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +herr_t H5Zget_filter_info(H5Z_filter_t filter, unsigned int *filter_config_flags) +{ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_API(H5Zget_filter_info, FAIL) + + if (filter_config_flags != NULL) + { + if (filter == H5Z_FILTER_SZIP) + { + *filter_config_flags = 0; +#ifdef H5_SZIP_CAN_ENCODE + *filter_config_flags |= H5Z_FILTER_CONFIG_ENCODE_ENABLED; +#endif + *filter_config_flags |= H5Z_FILTER_CONFIG_DECODE_ENABLED; + } + else + *filter_config_flags = H5Z_FILTER_CONFIG_DECODE_ENABLED | H5Z_FILTER_CONFIG_ENCODE_ENABLED; + + /* Make sure the filter exists */ + if (H5Z_find(filter) == NULL) + *filter_config_flags = 0; + } + +done: + FUNC_LEAVE_API(ret_value) +} + |