diff options
Diffstat (limited to 'tools/lib')
-rw-r--r-- | tools/lib/h5tools_filters.c | 286 |
1 files changed, 144 insertions, 142 deletions
diff --git a/tools/lib/h5tools_filters.c b/tools/lib/h5tools_filters.c index 2da21ef..79cf253 100644 --- a/tools/lib/h5tools_filters.c +++ b/tools/lib/h5tools_filters.c @@ -22,8 +22,9 @@ */ static void print_warning(const char *dname, const char *fname) { - fprintf(stderr,"warning: dataset <%s> cannot be read, %s filter is not available\n", - dname,fname); + fprintf(stderr, + "warning: dataset <%s> cannot be read, %s filter is not available\n", + dname, fname); } /*------------------------------------------------------------------------- @@ -46,109 +47,111 @@ int h5tools_canreadf(const char* name, /* object name, serves also as boolean pr hid_t dcpl_id) /* dataset creation property list */ { - int nfilters; /* number of filters */ - H5Z_filter_t filtn; /* filter identification number */ - int i; /* index */ - - - /* get information about filters */ - if ((nfilters = H5Pget_nfilters(dcpl_id))<0) - return -1; - - /* if we do not have filters, we can read the dataset safely */ - if (!nfilters) - return 1; - - /* check availability of filters */ - for(i = 0; i < nfilters; i++) - { - if((filtn = H5Pget_filter2(dcpl_id, (unsigned)i, 0, 0, 0, (size_t)0, 0, NULL)) < 0) - return -1; - - switch(filtn) - { -/*------------------------------------------------------------------------- - * user defined filter - *------------------------------------------------------------------------- - */ - default: - if(name) - print_warning(name, "user defined"); - return 0; - -/*------------------------------------------------------------------------- - * H5Z_FILTER_DEFLATE 1 , deflation like gzip - *------------------------------------------------------------------------- - */ - case H5Z_FILTER_DEFLATE: + int nfilters; /* number of filters */ + H5Z_filter_t filtn; /* filter identification number */ + int i; /* index */ + int udfilter_avail; /* index */ + + /* get information about filters */ + if ((nfilters = H5Pget_nfilters(dcpl_id)) < 0) + return -1; + + /* if we do not have filters, we can read the dataset safely */ + if (!nfilters) + return 1; + + /* check availability of filters */ + for (i = 0; i < nfilters; i++) { + if ((filtn = H5Pget_filter2(dcpl_id, (unsigned) i, 0, 0, 0, (size_t) 0, 0, NULL)) < 0) + return -1; + + switch (filtn) { + /*------------------------------------------------------------------------- + * user defined filter + *------------------------------------------------------------------------- + */ + default: + if ((udfilter_avail = H5Zfilter_avail(filtn)) < 0) + return -1; + else if (udfilter_avail == 0) { + if (name) + print_warning(name, "user defined"); + return 0; + } + break; + + /*------------------------------------------------------------------------- + * H5Z_FILTER_DEFLATE 1 , deflation like gzip + *------------------------------------------------------------------------- + */ + case H5Z_FILTER_DEFLATE: #ifndef H5_HAVE_FILTER_DEFLATE - if (name) - print_warning(name,"deflate"); - return 0; + if (name) + print_warning(name,"deflate"); + return 0; #endif - break; -/*------------------------------------------------------------------------- - * H5Z_FILTER_SZIP 4 , szip compression - *------------------------------------------------------------------------- - */ - case H5Z_FILTER_SZIP: + break; + /*------------------------------------------------------------------------- + * H5Z_FILTER_SZIP 4 , szip compression + *------------------------------------------------------------------------- + */ + case H5Z_FILTER_SZIP: #ifndef H5_HAVE_FILTER_SZIP - if (name) - print_warning(name,"SZIP"); - return 0; + if (name) + print_warning(name,"SZIP"); + return 0; #endif - break; -/*------------------------------------------------------------------------- - * H5Z_FILTER_SHUFFLE 2 , shuffle the data - *------------------------------------------------------------------------- - */ - case H5Z_FILTER_SHUFFLE: + break; + /*------------------------------------------------------------------------- + * H5Z_FILTER_SHUFFLE 2 , shuffle the data + *------------------------------------------------------------------------- + */ + case H5Z_FILTER_SHUFFLE: #ifndef H5_HAVE_FILTER_SHUFFLE - if (name) - print_warning(name,"shuffle"); - return 0; + if (name) + print_warning(name,"shuffle"); + return 0; #endif - break; -/*------------------------------------------------------------------------- - * H5Z_FILTER_FLETCHER32 3 , fletcher32 checksum of EDC - *------------------------------------------------------------------------- - */ - case H5Z_FILTER_FLETCHER32: + break; + /*------------------------------------------------------------------------- + * H5Z_FILTER_FLETCHER32 3 , fletcher32 checksum of EDC + *------------------------------------------------------------------------- + */ + case H5Z_FILTER_FLETCHER32: #ifndef H5_HAVE_FILTER_FLETCHER32 - if (name) - print_warning(name,"fletcher32"); - return 0; + if (name) + print_warning(name,"fletcher32"); + return 0; #endif - break; -/*------------------------------------------------------------------------- - * H5Z_FILTER_NBIT - *------------------------------------------------------------------------- - */ - case H5Z_FILTER_NBIT: + break; + /*------------------------------------------------------------------------- + * H5Z_FILTER_NBIT + *------------------------------------------------------------------------- + */ + case H5Z_FILTER_NBIT: #ifndef H5_HAVE_FILTER_NBIT - if (name) - print_warning(name,"nbit"); - return 0; + if (name) + print_warning(name,"nbit"); + return 0; #endif - break; -/*------------------------------------------------------------------------- - * H5Z_FILTER_SCALEOFFSET - *------------------------------------------------------------------------- - */ - case H5Z_FILTER_SCALEOFFSET: + break; + /*------------------------------------------------------------------------- + * H5Z_FILTER_SCALEOFFSET + *------------------------------------------------------------------------- + */ + case H5Z_FILTER_SCALEOFFSET: #ifndef H5_HAVE_FILTER_SCALEOFFSET - if (name) - print_warning(name,"scaleoffset"); - return 0; + if (name) + print_warning(name,"scaleoffset"); + return 0; #endif - break; - }/*switch*/ - }/*for*/ + break; + }/*switch*/ + }/*for*/ - return 1; + return 1; } - /*------------------------------------------------------------------------- * Function: h5tools_canwritef * @@ -164,71 +167,70 @@ int h5tools_canreadf(const char* name, /* object name, serves also as boolean pr * *------------------------------------------------------------------------- */ -int h5tools_can_encode( H5Z_filter_t filtn) -{ - switch (filtn) - { - /* user defined filter */ - default: - return 0; +int h5tools_can_encode(H5Z_filter_t filtn) { + switch (filtn) { + /* user defined filter */ + default: + return 0; - case H5Z_FILTER_DEFLATE: + case H5Z_FILTER_DEFLATE: #ifndef H5_HAVE_FILTER_DEFLATE - return 0; + return 0; #endif - break; - case H5Z_FILTER_SZIP: + break; + case H5Z_FILTER_SZIP: #ifndef H5_HAVE_FILTER_SZIP - return 0; + return 0; #else - { - unsigned int filter_config_flags; - - if(H5Zget_filter_info(filtn, &filter_config_flags)<0) - return -1; - if ((filter_config_flags & - (H5Z_FILTER_CONFIG_ENCODE_ENABLED|H5Z_FILTER_CONFIG_DECODE_ENABLED)) == 0) { - /* filter present but neither encode nor decode is supported (???) */ - return -1; - } else if ((filter_config_flags & - (H5Z_FILTER_CONFIG_ENCODE_ENABLED|H5Z_FILTER_CONFIG_DECODE_ENABLED)) == - H5Z_FILTER_CONFIG_DECODE_ENABLED) { - /* decoder only: read but not write */ - return 0; - } else if ((filter_config_flags & - (H5Z_FILTER_CONFIG_ENCODE_ENABLED|H5Z_FILTER_CONFIG_DECODE_ENABLED)) == - H5Z_FILTER_CONFIG_ENCODE_ENABLED) { - /* encoder only: write but not read (???) */ - return -1; - } else if ((filter_config_flags & - (H5Z_FILTER_CONFIG_ENCODE_ENABLED|H5Z_FILTER_CONFIG_DECODE_ENABLED)) == - (H5Z_FILTER_CONFIG_ENCODE_ENABLED|H5Z_FILTER_CONFIG_DECODE_ENABLED)) { - return 1; - } - } + { + unsigned int filter_config_flags; + + if (H5Zget_filter_info(filtn, &filter_config_flags) < 0) + return -1; + if ((filter_config_flags + & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == 0) { + /* filter present but neither encode nor decode is supported (???) */ + return -1; + } + else if ((filter_config_flags + & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == H5Z_FILTER_CONFIG_DECODE_ENABLED) { + /* decoder only: read but not write */ + return 0; + } + else if ((filter_config_flags + & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == H5Z_FILTER_CONFIG_ENCODE_ENABLED) { + /* encoder only: write but not read (???) */ + return -1; + } + else if ((filter_config_flags + & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) + == (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) { + return 1; + } + } #endif - break; - case H5Z_FILTER_SHUFFLE: + break; + case H5Z_FILTER_SHUFFLE: #ifndef H5_HAVE_FILTER_SHUFFLE - return 0; + return 0; #endif - break; - case H5Z_FILTER_FLETCHER32: + break; + case H5Z_FILTER_FLETCHER32: #ifndef H5_HAVE_FILTER_FLETCHER32 - return 0; + return 0; #endif - break; - case H5Z_FILTER_NBIT: + break; + case H5Z_FILTER_NBIT: #ifndef H5_HAVE_FILTER_NBIT - return 0; + return 0; #endif - break; - case H5Z_FILTER_SCALEOFFSET: + break; + case H5Z_FILTER_SCALEOFFSET: #ifndef H5_HAVE_FILTER_SCALEOFFSET - return 0; + return 0; #endif - break; - }/*switch*/ + break; + }/*switch*/ - return 1; + return 1; } |