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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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
#include <string>
#ifndef H5_NO_STD
using std::cerr;
using std::endl;
#endif // H5_NO_STD
#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
*
*-------------------------------------------------------------------------
*/
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
*
*-------------------------------------------------------------------------
*/
extern "C" void
cleanup_filters()
{
HDremove(FILE1.c_str());
}
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