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Diffstat (limited to 'c++/test/tfilter.cpp')
| -rw-r--r-- | c++/test/tfilter.cpp | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/c++/test/tfilter.cpp b/c++/test/tfilter.cpp new file mode 100644 index 0000000..5de6590 --- /dev/null +++ b/c++/test/tfilter.cpp @@ -0,0 +1,295 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * Copyright by the Board of Trustees of the University of Illinois. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/***************************************************************************** + FILE + tfilter.cpp - HDF5 C++ testing various filters and their combination. + + ***************************************************************************/ +#ifdef OLD_HEADER_FILENAME +#include <iostream.h> +#else +#include <iostream> +#endif +using std::cerr; +using std::endl; + +#include <string> +#include "H5Cpp.h" // C++ API header file +using namespace H5; + +#include "h5test.h" +#include "h5cpputil.h" // C++ utilility header file + +#define DSET_DIM1 100 +#define DSET_DIM2 200 +#define FILTER_CHUNK_DIM1 2 +#define FILTER_CHUNK_DIM2 25 + +// will do this function later or use it as guideline - BMR - 2007/01/26 +#if 0 +static herr_t test_filter_internal(hid_t fid, const char *name, hid_t dcpl, + int if_fletcher32, int corrupted, hsize_t *dset_size) +{ + cerr << "do nothing right now" << endl; + return(0); +} +#endif + +/* Temporary filter IDs used for testing */ +const int H5Z_FILTER_BOGUS = 305; + +#if 0 // H5_ATTR_UNUSED variables caused warning, so duplicated below with NULL instead +static size_t filter_bogus(unsigned int flags, size_t cd_nelmts, + const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf); +#endif +static size_t filter_bogus(size_t nbytes); +/* This message derives from H5Z */ +const H5Z_class2_t H5Z_BOGUS[1] = {{ + H5Z_CLASS_T_VERS, /* H5Z_class_t version */ + H5Z_FILTER_BOGUS, /* Filter id number */ + 1, 1, /* Encoding and decoding enabled */ + "bogus", /* Filter name for debugging */ + NULL, /* The "can apply" callback */ + NULL, /* The "set local" callback */ + (H5Z_func_t)filter_bogus, /* The actual filter function */ +}}; + +/*------------------------------------------------------------------------- + * Function: filter_bogus + * + * Purpose A bogus compression method that doesn't do anything. + * + * Return Success: Data chunk size + * + * Failure: 0 + * + * Programmer Robb Matzke + * Tuesday, April 21, 1998 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +static size_t +#if 0 // H5_ATTR_UNUSED variables caused warning, so duplicated below with NULL instead +filter_bogus(unsigned int H5_ATTR_UNUSED flags, size_t H5_ATTR_UNUSED cd_nelmts, + const unsigned int H5_ATTR_UNUSED *cd_values, size_t nbytes, + size_t H5_ATTR_UNUSED *buf_size, void H5_ATTR_UNUSED **buf) +#endif +filter_bogus(size_t nbytes) +{ + return nbytes; +} + +/*------------------------------------------------------------------------- + * Function: test_null_filter + * + * Purpose Test null I/O filter by itself. + * + * Return None + * + * Programmer Binh-Minh Ribler (use C version, from dsets.c/test_filters) + * January, 2007 + * + * Modifications: + * Note: H5Z interface is not implemented yet. + * + *------------------------------------------------------------------------- + */ + +// Chunk dimensions +const hsize_t chunk_size[2] = {FILTER_CHUNK_DIM1, FILTER_CHUNK_DIM2}; + +static void test_null_filter() +{ + // Output message about test being performed + SUBTEST("'Null' filter"); + try { + //hsize_t null_size; // Size of dataset with null filter + + // Prepare dataset create property list + DSetCreatPropList dsplist; + dsplist.setChunk(2, chunk_size); + + if (H5Zregister (H5Z_BOGUS)<0) + throw Exception("test_null_filter", "H5Zregister failed"); + + // Set some pretent filter + dsplist.setFilter(H5Z_FILTER_BOGUS); + + // this function is just a stub right now; will work on it later - BMR + //if(test_filter_internal(file,DSET_BOGUS_NAME,dc,DISABLE_FLETCHER32,DATA_NOT_CORRUPTED,&null_size)<0) + // throw Exception("test_null_filter", "test_filter_internal failed"); + + // Close objects. + dsplist.close(); + PASSED(); + } // end of try + + // catch all other exceptions + catch (Exception& E) + { + issue_fail_msg("test_null_filter()", __LINE__, __FILE__, E.getCDetailMsg()); + } +} // test_null_filter + +/*------------------------------------------------------------------------- + * Function: test_szip_filter + * + * Purpose Test SZIP filter by itself. + * + * Return None + * + * Programmer Binh-Minh Ribler (partly from dsets.c/test_filters) + * January, 2007 + * + * Modifications: + * Note: H5Z interface is not implemented yet. + * + *------------------------------------------------------------------------- + */ + +const H5std_string DSET_SZIP_NAME("szipped dataset"); + +static void test_szip_filter(H5File& file1) +{ +#ifdef H5_HAVE_FILTER_SZIP + int points[DSET_DIM1][DSET_DIM2], check[DSET_DIM1][DSET_DIM2]; + unsigned szip_options_mask=H5_SZIP_NN_OPTION_MASK; + unsigned szip_pixels_per_block=4; + + // Output message about test being performed + SUBTEST("szip filter (with encoder)"); + + if ( h5_szip_can_encode() == 1) { + char* tconv_buf = new char [1000]; + + try { + const hsize_t size[2] = {DSET_DIM1, DSET_DIM2}; + + // Create the data space + DataSpace space1(2, size, NULL); + + // Create a small conversion buffer to test strip mining (?) + DSetMemXferPropList xfer; + xfer.setBuffer (1000, tconv_buf, NULL); + + // Prepare dataset create property list + DSetCreatPropList dsplist; + dsplist.setChunk(2, chunk_size); + + // Set up for szip compression + dsplist.setSzip(szip_options_mask, szip_pixels_per_block); + + // Create a dataset with szip compression + DataSpace space2 (2, size, NULL); + DataSet dataset(file1.createDataSet (DSET_SZIP_NAME, PredType::NATIVE_INT, space2, dsplist)); + + hsize_t i, j, n; + for (i=n=0; i<size[0]; i++) + { + for (j=0; j<size[1]; j++) + { + points[i][j] = (int)n++; + } + } + + // Write to the dataset then read back the values + dataset.write ((void*)points, PredType::NATIVE_INT, DataSpace::ALL, DataSpace::ALL, xfer); + dataset.read ((void*)check, PredType::NATIVE_INT, DataSpace::ALL, DataSpace::ALL, xfer); + + // Check that the values read are the same as the values written + for (i = 0; i < size[0]; i++) + for (j = 0; j < size[1]; j++) + { + int status = check_values (i, j, points[i][j], check[i][j]); + if (status == -1) + throw Exception("test_szip_filter", "Failed in testing szip method"); + } + dsplist.close(); + PASSED(); + } // end of try + + // catch all other exceptions + catch (Exception& E) + { + issue_fail_msg("test_szip_filter()", __LINE__, __FILE__, E.getCDetailMsg()); + } + + delete[] tconv_buf; + } // if szip presents + else { + SKIPPED(); + } + +#else /* H5_HAVE_FILTER_SZIP */ + SUBTEST("szip filter"); + SKIPPED(); + H5std_string fname = file1.getFileName(); + cerr << " Szip filter not enabled for file '" << fname << "'" << endl; +#endif /* H5_HAVE_FILTER_SZIP */ +} // test_szip_filter + + +/**************************************************************** +** +** test_filters(): Main routine for testing filters. +** +****************************************************************/ +const H5std_string FILE1("tfilters.h5"); +extern "C" +void test_filters() +{ + // Output message about test being performed + MESSAGE(5, ("Testing Various Filters\n")); + + hid_t fapl_id; + fapl_id = h5_fileaccess(); // in h5test.c, returns a file access template + + try + { + // Use the file access template id to create a file access prop. list + FileAccPropList fapl(fapl_id); + + H5File file1(FILE1, H5F_ACC_TRUNC, FileCreatPropList::DEFAULT, fapl); + + // Test basic VL string datatype + test_null_filter(); + test_szip_filter(file1); + } + catch (Exception& E) + { + issue_fail_msg("test_filters()", __LINE__, __FILE__, E.getCDetailMsg()); + } +} // test_filters() + +/*------------------------------------------------------------------------- + * Function: cleanup_filters + * + * Purpose Cleanup temporary test files + * + * Return none + * + * Programmer Quincey Koziol + * September 10, 1999 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +extern "C" +void cleanup_filters() +{ + HDremove(FILE1.c_str()); +} |