diff options
Diffstat (limited to 'examples/h5_cmprss.c')
| -rw-r--r-- | examples/h5_cmprss.c | 121 |
1 files changed, 60 insertions, 61 deletions
diff --git a/examples/h5_cmprss.c b/examples/h5_cmprss.c index 5feadd3..7557cf5 100644 --- a/examples/h5_cmprss.c +++ b/examples/h5_cmprss.c @@ -18,27 +18,29 @@ #include "hdf5.h" -#define FILE "cmprss.h5" -#define RANK 2 -#define DIM0 100 -#define DIM1 20 +#define FILE "cmprss.h5" +#define RANK 2 +#define DIM0 100 +#define DIM1 20 -int main () { +int +main() +{ - hid_t file_id, dataset_id, dataspace_id; /* identifiers */ - hid_t plist_id; + hid_t file_id, dataset_id, dataspace_id; /* identifiers */ + hid_t plist_id; - size_t nelmts; - unsigned flags, filter_info; + size_t nelmts; + unsigned flags, filter_info; H5Z_filter_t filter_type; - herr_t status; - hsize_t dims[2]; - hsize_t cdims[2]; + herr_t status; + hsize_t dims[2]; + hsize_t cdims[2]; - int i,j, numfilt; - int buf[DIM0][DIM1]; - int rbuf [DIM0][DIM1]; + int i, j, numfilt; + int buf[DIM0][DIM1]; + int rbuf[DIM0][DIM1]; /* Uncomment these variables to use SZIP compression unsigned szip_options_mask; @@ -46,25 +48,24 @@ int main () { */ /* Create a file. */ - file_id = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - + file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); /* Create dataset "Compressed Data" in the group using absolute name. */ - dims[0] = DIM0; - dims[1] = DIM1; - dataspace_id = H5Screate_simple (RANK, dims, NULL); + dims[0] = DIM0; + dims[1] = DIM1; + dataspace_id = H5Screate_simple(RANK, dims, NULL); - plist_id = H5Pcreate (H5P_DATASET_CREATE); + plist_id = H5Pcreate(H5P_DATASET_CREATE); /* Dataset must be chunked for compression */ cdims[0] = 20; cdims[1] = 20; - status = H5Pset_chunk (plist_id, 2, cdims); + status = H5Pset_chunk(plist_id, 2, cdims); /* Set ZLIB / DEFLATE Compression using compression level 6. * To use SZIP Compression comment out these lines. - */ - status = H5Pset_deflate (plist_id, 6); + */ + status = H5Pset_deflate(plist_id, 6); /* Uncomment these lines to set SZIP Compression szip_options_mask = H5_SZIP_NN_OPTION_MASK; @@ -72,51 +73,49 @@ int main () { status = H5Pset_szip (plist_id, szip_options_mask, szip_pixels_per_block); */ - dataset_id = H5Dcreate2 (file_id, "Compressed_Data", H5T_STD_I32BE, - dataspace_id, H5P_DEFAULT, plist_id, H5P_DEFAULT); + dataset_id = H5Dcreate2(file_id, "Compressed_Data", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT, plist_id, + H5P_DEFAULT); - for (i = 0; i< DIM0; i++) - for (j=0; j<DIM1; j++) - buf[i][j] = i+j; + for (i = 0; i < DIM0; i++) + for (j = 0; j < DIM1; j++) + buf[i][j] = i + j; - status = H5Dwrite (dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf); + status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf); - status = H5Sclose (dataspace_id); - status = H5Dclose (dataset_id); - status = H5Pclose (plist_id); - status = H5Fclose (file_id); + status = H5Sclose(dataspace_id); + status = H5Dclose(dataset_id); + status = H5Pclose(plist_id); + status = H5Fclose(file_id); /* Now reopen the file and dataset in the file. */ - file_id = H5Fopen (FILE, H5F_ACC_RDWR, H5P_DEFAULT); - dataset_id = H5Dopen2 (file_id, "Compressed_Data", H5P_DEFAULT); + file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT); + dataset_id = H5Dopen2(file_id, "Compressed_Data", H5P_DEFAULT); /* Retrieve filter information. */ - plist_id = H5Dget_create_plist (dataset_id); - - numfilt = H5Pget_nfilters (plist_id); - printf ("Number of filters associated with dataset: %i\n", numfilt); - - for (i=0; i<numfilt; i++) { - nelmts = 0; - filter_type = H5Pget_filter2 (plist_id, 0, &flags, &nelmts, NULL, 0, NULL, - &filter_info); - printf ("Filter Type: "); - switch (filter_type) { - case H5Z_FILTER_DEFLATE: - printf ("H5Z_FILTER_DEFLATE\n"); - break; - case H5Z_FILTER_SZIP: - printf ("H5Z_FILTER_SZIP\n"); - break; - default: - printf ("Other filter type included.\n"); - } + plist_id = H5Dget_create_plist(dataset_id); + + numfilt = H5Pget_nfilters(plist_id); + printf("Number of filters associated with dataset: %i\n", numfilt); + + for (i = 0; i < numfilt; i++) { + nelmts = 0; + filter_type = H5Pget_filter2(plist_id, 0, &flags, &nelmts, NULL, 0, NULL, &filter_info); + printf("Filter Type: "); + switch (filter_type) { + case H5Z_FILTER_DEFLATE: + printf("H5Z_FILTER_DEFLATE\n"); + break; + case H5Z_FILTER_SZIP: + printf("H5Z_FILTER_SZIP\n"); + break; + default: + printf("Other filter type included.\n"); + } } - status = H5Dread (dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, - H5P_DEFAULT, rbuf); + status = H5Dread(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rbuf); - status = H5Dclose (dataset_id); - status = H5Pclose (plist_id); - status = H5Fclose (file_id); + status = H5Dclose(dataset_id); + status = H5Pclose(plist_id); + status = H5Fclose(file_id); } |