diff options
Diffstat (limited to 'tools/h5dump/h5dump.c')
| -rw-r--r-- | tools/h5dump/h5dump.c | 83 |
1 files changed, 77 insertions, 6 deletions
diff --git a/tools/h5dump/h5dump.c b/tools/h5dump/h5dump.c index 70d889f..2389ef4 100644 --- a/tools/h5dump/h5dump.c +++ b/tools/h5dump/h5dump.c @@ -2440,6 +2440,9 @@ static void dump_fill_value(hid_t dcpl,hid_t type_id, hid_t obj_id) * * Programmer: pvn * + * Modifications: pvn, March 28, 2008 + * Add a COMPRESSION ratio information for cases when filters are present + * *------------------------------------------------------------------------- */ static void @@ -2455,7 +2458,7 @@ dump_dcpl(hid_t dcpl_id,hid_t type_id, hid_t obj_id) unsigned szip_pixels_per_block; hsize_t chsize[64]; /* chunk size in elements */ int rank; /* rank */ - char name[256]; /* external file name */ + char name[256]; /* external file name */ off_t offset; /* offset of external file */ hsize_t size; /* size of external file */ H5D_fill_value_t fvstatus; @@ -2467,11 +2470,12 @@ dump_dcpl(hid_t dcpl_id,hid_t type_id, hid_t obj_id) unsigned j; storage_size=H5Dget_storage_size(obj_id); + nfilters = H5Pget_nfilters(dcpl_id); ioffset=H5Dget_offset(obj_id); next=H5Pget_external_count(dcpl_id); strcpy(f_name,"\0"); - /*------------------------------------------------------------------------- + /*------------------------------------------------------------------------- * STORAGE_LAYOUT *------------------------------------------------------------------------- */ @@ -2490,7 +2494,72 @@ dump_dcpl(hid_t dcpl_id,hid_t type_id, hid_t obj_id) HDfprintf(stdout, ", %Hu", chsize[i]); printf(" %s\n", dump_header_format->dataspacedimend); indentation(indent + COL); - HDfprintf(stdout, "SIZE %Hu\n ", storage_size); + + + /* if there are filters, print a compression ratio */ + if ( nfilters ) + { + + hid_t sid = H5Dget_space( obj_id ); + hid_t tid = H5Dget_type( obj_id ); + size_t datum_size = H5Tget_size( tid ); + hsize_t dims[H5S_MAX_RANK]; + int ndims = H5Sget_simple_extent_dims( sid, dims, NULL); + hsize_t nelmts = 1; + hsize_t size; + double per = 0; + hssize_t a, b; + int ok = 0; + + /* only print the compression ratio for these filters */ + for ( i = 0; i < nfilters; i++) + { + cd_nelmts = NELMTS(cd_values); + filtn = H5Pget_filter2(dcpl_id, (unsigned)i, &filt_flags, &cd_nelmts, + cd_values, sizeof(f_name), f_name, NULL); + + switch (filtn) + { + case H5Z_FILTER_DEFLATE: + case H5Z_FILTER_SZIP: + case H5Z_FILTER_NBIT: + case H5Z_FILTER_SCALEOFFSET: + ok = 1; + break; + } + } + + if (ndims && ok ) + { + + for (i = 0; i < ndims; i++) + { + nelmts *= dims[i]; + } + size = nelmts * datum_size; + + a = size; b = storage_size; + if (a!=0) + per = (double) (b-a)/a; + + per = -per; + per *=100; + + HDfprintf(stdout, "SIZE %Hu (%.1f%%COMPRESSION)\n ", storage_size, per); + + } + else + HDfprintf(stdout, "SIZE %Hu\n ", storage_size); + + + H5Sclose(sid); + H5Tclose(tid); + + } + else + { + HDfprintf(stdout, "SIZE %Hu\n ", storage_size); + } /*end indent */ indent -= COL; @@ -2563,14 +2632,16 @@ dump_dcpl(hid_t dcpl_id,hid_t type_id, hid_t obj_id) * FILTERS *------------------------------------------------------------------------- */ - nfilters = H5Pget_nfilters(dcpl_id); + indentation(indent + COL); printf("%s %s\n", FILTERS, BEGIN); indent += COL; - if (nfilters) { - for (i=0; i<nfilters; i++) { + if (nfilters) + { + for (i=0; i<nfilters; i++) + { cd_nelmts = NELMTS(cd_values); filtn = H5Pget_filter2(dcpl_id, (unsigned)i, &filt_flags, &cd_nelmts, cd_values, sizeof(f_name), f_name, NULL); |