diff options
Diffstat (limited to 'test/gen_cross.c')
| -rwxr-xr-x | test/gen_cross.c | 166 |
1 files changed, 146 insertions, 20 deletions
diff --git a/test/gen_cross.c b/test/gen_cross.c index 46afc35..2505dbb 100755 --- a/test/gen_cross.c +++ b/test/gen_cross.c @@ -27,17 +27,37 @@ #include "h5test.h" #define H5FILE_NAME "data.h5" -#define DATASETNAME "Array" -#define NX 5 /* dataset dimensions */ -#define NY 6 -#define RANK 2 +#define DATASETNAME "Array" +#define DATASETNAME2 "Scale_offset_data" +#define NX 6 +#define NY 6 +#define RANK 2 +#define CHUNK0 3 +#define CHUNK1 3 +int create_normal_dset(hid_t fid, hid_t sid, hid_t tid); +int create_scale_offset_dset(hid_t fid, hid_t sid, hid_t tid); + + +/*------------------------------------------------------------------------- + * Function: create_normal_dset + * + * Purpose: Create a regular dataset of DOUBLE datatype. + * + * Return: Success: 0 + * Failure: -1 + * + * Programmer: Raymond Lu + * Some time ago + * + * Modifications: + * + *------------------------------------------------------------------------- + */ int -main (void) +create_normal_dset(hid_t fid, hid_t sid, hid_t tid) { - hid_t file, dataset; /* file and dataset handles */ - hid_t datatype, dataspace; /* handles */ - hsize_t dimsf[2]; /* dataset dimensions */ + hid_t dataset; /* file and dataset handles */ herr_t status; float data[NX][NY]; /* data to write */ int i, j; @@ -55,7 +75,121 @@ main (void) * 2 3 4 5 6 7 * 3 4 5 6 7 8 * 4 5 6 7 8 9 + * 5 6 7 8 9 10 + */ + + /* + * Create a new dataset within the file using defined dataspace and + * datatype and default dataset creation properties. + */ + dataset = H5Dcreate2(fid, DATASETNAME, tid, sid, + H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); + + /* + * Write the data to the dataset using default transfer properties. + */ + status = H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, + H5P_DEFAULT, data); + + /* + * Close/release resources. */ + H5Dclose(dataset); + + return 0; +} + + +/*------------------------------------------------------------------------- + * Function: create_scale_offset_dset + * + * Purpose: Create a dataset of DOUBLE datatype with scale-offset filter + * + * Return: Success: 0 + * Failure: -1 + * + * Programmer: Raymond Lu + * 21 January 2011 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +int +create_scale_offset_dset(hid_t fid, hid_t sid, hid_t tid) +{ +#ifdef H5_HAVE_FILTER_SCALEOFFSET + hid_t dataset; /* file and dataset handles */ + hid_t dcpl; + herr_t status; + float data[NX][NY]; /* data to write */ + hsize_t chunk[RANK] = {CHUNK0, CHUNK1}; + int i, j; + + /* + * Data and output buffer initialization. + */ + for (j = 0; j < NX; j++) { + for (i = 0; i < NY; i++) + data[j][i] = ((float)(i + j + 1))/3; + } + + /* + * Create the dataset creation property list, add the Scale-Offset + * filter and set the chunk size. + */ + dcpl = H5Pcreate (H5P_DATASET_CREATE); + status = H5Pset_scaleoffset (dcpl, H5Z_SO_FLOAT_DSCALE, 3); + status = H5Pset_chunk (dcpl, RANK, chunk); + + /* + * Create a new dataset within the file using defined dataspace and + * datatype and default dataset creation properties. + */ + dataset = H5Dcreate2(fid, DATASETNAME2, tid, sid, + H5P_DEFAULT, dcpl, H5P_DEFAULT); + + /* + * Write the data to the dataset using default transfer properties. + */ + status = H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, + H5P_DEFAULT, data); + + /* + * Close/release resources. + */ + H5Pclose(dcpl); + H5Dclose(dataset); + +#else /* H5_HAVE_FILTER_SCALEOFFSET */ + const char *not_supported= "Scaleoffset filter is not enabled. Can't create the dataset."; + + puts(not_supported); +#endif /* H5_HAVE_FILTER_SCALEOFFSET */ + + return 0; +} + + +/*------------------------------------------------------------------------- + * Function: main + * + * Purpose: Create a file for cross_read.c test. + * + * Return: Success: exit(0) + * Failure: exit(1) + * + * Programmer: Raymond Lu + * Some time ago + * + *------------------------------------------------------------------------- + */ +int +main (void) +{ + hid_t file; /* file and dataset handles */ + hid_t dataspace, datatype; + hsize_t dimsf[RANK]; /* * Create a new file using H5F_ACC_TRUNC access, @@ -78,25 +212,17 @@ main (void) */ datatype = H5Tcopy(H5T_NATIVE_DOUBLE); - /* - * Create a new dataset within the file using defined dataspace and - * datatype and default dataset creation properties. - */ - dataset = H5Dcreate2(file, DATASETNAME, datatype, dataspace, - H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); + /* Create a regular dataset */ + create_normal_dset(file, dataspace, datatype); - /* - * Write the data to the dataset using default transfer properties. - */ - status = H5Dwrite(dataset, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, - H5P_DEFAULT, data); + /* Create a dataset with scale-offset filter */ + create_scale_offset_dset(file, dataspace, datatype); /* * Close/release resources. */ H5Sclose(dataspace); H5Tclose(datatype); - H5Dclose(dataset); H5Fclose(file); return 0; |