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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 HDF. The full HDF 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/HDF/releases/. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************************************************************************
* tcomp.c - tests various compression functionality
* Structure of the file:
* test_compression - test driver
* test_various_comps - creates several data sets with different
* compression methods.
*
****************************************************************************/
#include <string.h>
#include "mfhdf.h"
#include "hdftest.h"
/********************************************************************
Name: test_various_comps() - creates several data sets with different
compression methods.
Description:
This function creates and writes data to 3 data sets using three
compression methods, deflate, skipping huffman, and szip, in that
order. The output file can be used to test display tools like
hdp.
Return value:
The number of errors occurred in this routine.
*********************************************************************/
#ifdef H4_HAVE_LIBSZ
#include "szlib.h"
#endif
#define FILE_NAME "sds_compressed.hdf"
#define SDS1_NAME "SDSgzip"
#define SDS2_NAME "SDSskiphuff"
#define SDS3_NAME "SDSszip"
#define X_LENGTH 5
#define Y_LENGTH 16
#define RANK 2
static intn
test_various_comps()
{
/************************* Variable declaration **************************/
int32 sd_id, sds_id;
intn status;
int32 comp_type; /* Compression flag */
comp_info c_info; /* Compression structure */
int32 start[2], edges[2], dim_sizes[2];
int32 data[Y_LENGTH][X_LENGTH];
int32 pixels_per_scanline;
intn num_errs = 0; /* number of errors in compression test so far */
int i, j;
/********************* End of variable declaration ***********************/
/* Buffer array data and define array dimensions. */
for (j = 0; j < Y_LENGTH; j++) {
for (i = 0; i < X_LENGTH; i++)
data[j][i] = (i + j) + 1;
}
dim_sizes[0] = Y_LENGTH;
dim_sizes[1] = X_LENGTH;
/* Create the file and initialize the SD interface. */
sd_id = SDstart(FILE_NAME, DFACC_CREATE);
CHECK(sd_id, FAIL, "SDstart");
/* Define the location and size of the data set to be written to the file. */
start[0] = 0;
start[1] = 0;
edges[0] = Y_LENGTH;
edges[1] = X_LENGTH;
/* Create 1st data set for GZIP compression. */
sds_id = SDcreate(sd_id, SDS1_NAME, DFNT_INT32, RANK, dim_sizes);
CHECK(sds_id, FAIL, "SDcreate");
/* Set data set SDS1_NAME to use GZIP compression. */
memset(&c_info, 0, sizeof(c_info));
comp_type = COMP_CODE_DEFLATE;
c_info.deflate.level = 6;
status = SDsetcompress(sds_id, comp_type, &c_info);
CHECK(status, FAIL, "SDsetcompress");
/* Write the stored data to the 1st data set. */
status = SDwritedata(sds_id, start, NULL, edges, (void *)data);
CHECK(status, FAIL, "SDwritedata");
/* Terminate access to the 1st data set. */
status = SDendaccess(sds_id);
CHECK(status, FAIL, "SDendaccess");
/* Create 2nd data set for Skipping Huffman compression. */
sds_id = SDcreate(sd_id, SDS2_NAME, DFNT_INT32, RANK, dim_sizes);
CHECK(sds_id, FAIL, "SDcreate");
/* Set data set SDS2_NAME to use Skipping Huffman compression. */
memset(&c_info, 0, sizeof(c_info));
comp_type = COMP_CODE_SKPHUFF;
c_info.skphuff.skp_size = 4;
status = SDsetcompress(sds_id, comp_type, &c_info);
CHECK(status, FAIL, "SDsetcompress");
/* Write the stored data to the 2nd data set. */
status = SDwritedata(sds_id, start, NULL, edges, (void *)data);
CHECK(status, FAIL, "SDwritedata");
/* Terminate access to the 2nd data set. */
status = SDendaccess(sds_id);
CHECK(status, FAIL, "SDendaccess");
#ifdef H4_HAVE_SZIP_ENCODER /* we have szip library with encoder */
/* Create 3rd data set for SZIP compression. */
sds_id = SDcreate(sd_id, SDS3_NAME, DFNT_INT32, RANK, dim_sizes);
CHECK(sds_id, FAIL, "SDcreate");
/* Set data set SDS3_NAME to use SZIP compression. */
comp_type = COMP_CODE_SZIP;
pixels_per_scanline = dim_sizes[1];
c_info.szip.pixels = dim_sizes[0] * dim_sizes[1];
;
c_info.szip.pixels_per_block = 2;
if (pixels_per_scanline >= 2048)
c_info.szip.pixels_per_scanline = 512;
else
c_info.szip.pixels_per_scanline = dim_sizes[1];
c_info.szip.options_mask = SZ_EC_OPTION_MASK;
c_info.szip.options_mask |= SZ_RAW_OPTION_MASK;
c_info.szip.bits_per_pixel = 64;
status = SDsetcompress(sds_id, comp_type, &c_info);
CHECK(status, FAIL, "SDsetcompress");
/* Write the stored data to the 3rd data set. */
status = SDwritedata(sds_id, start, NULL, edges, (void *)data);
CHECK(status, FAIL, "SDwritedata");
/* Terminate access to the 3rd data set. */
status = SDendaccess(sds_id);
CHECK(status, FAIL, "SDendaccess");
#endif
/* Terminate access to the SD interface and close the file. */
status = SDend(sd_id);
CHECK(status, FAIL, "SDend");
/* Return the number of errors that's been kept track of so far */
return num_errs;
} /* test_various_comps */
#define COMPFILE1 "comptst1.hdf"
#define COMPFILE2 "comptst2.hdf"
#define COMPFILE3 "comptst3.hdf"
#define COMPFILE4 "comptst4.hdf"
#define COMPFILE5 "comptst5.hdf"
#define COMPFILE6 "comptst6.hdf"
#define COMPFILE7 "comptst7.hdf"
static int
test_compressed_data()
{
int32 fcomp; /* File handle */
int32 index; /* Index of a dataset */
int32 nt; /* Number type */
int32 dimsize[10]; /* dimension sizes */
int32 newsds, newsds2; /* SDS handles */
comp_coder_t comp_type; /* to retrieve compression type into */
comp_info cinfo; /* compression information structure */
int32 idata[100];
int32 rdata[100];
int32 fillval;
intn i;
intn num_errs = 0; /* number of errors in compression test so far */
intn status; /* status flag */
int32 start[10], end[10]; /* start and end arrays */
/*
* Writing 1st compressed dataset, basic skipping huffman.
*/
fcomp = SDstart(COMPFILE1, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet1", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
for (i = 0; i < 25; i++)
idata[i] = i * 10;
/* Set the dataset to be compressed with skipping huffman */
cinfo.skphuff.skp_size = 4;
status = SDsetcompress(newsds, COMP_CODE_SKPHUFF, &cinfo);
CHECK(status, FAIL, "SDcompress");
/* Test get compression info when the data set is empty but set to be
compressed */
status = SDgetcompinfo(newsds, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_SKPHUFF, "SDgetcompinfo");
/* Only get the compression method and verify it */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
status = SDgetcomptype(newsds, &comp_type);
CHECK(status, FAIL, "SDgetcomptype");
VERIFY(comp_type, COMP_CODE_SKPHUFF, "SDgetcomptype");
/* Write data to the dataset */
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDwritedata(newsds, start, NULL, end, (void *)idata);
CHECK(status, FAIL, "SDwritedata");
/* End access to the dataset */
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read and verify the compressed data and information
*/
fcomp = SDstart(COMPFILE1, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
/*
* Retrieve and verify the compression info - bug# 307
*/
#ifndef H4_NO_DEPRECATED_SYMBOLS
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompress(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompress");
VERIFY(comp_type, COMP_CODE_SKPHUFF, "SDgetcompress");
VERIFY(cinfo.skphuff.skp_size, 4, "SDgetcompress");
#endif /* H4_NO_DEPRECATED_SYMBOLS */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompinfo(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_SKPHUFF, "SDgetcompinfo");
VERIFY(cinfo.skphuff.skp_size, 4, "SDgetcompinfo");
/* Only get the compression method and verify it */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
status = SDgetcomptype(newsds2, &comp_type);
CHECK(status, FAIL, "SDgetcomptype");
VERIFY(comp_type, COMP_CODE_SKPHUFF, "SDgetcomptype");
/* Read and verify the compressed data */
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (idata[i] != rdata[i]) {
fprintf(stderr, "thisone: Bogus val in loc %d in compressed dset want %ld got %ld\n", i,
(long)idata[i], (long)rdata[i]);
num_errs++;
}
/* End access to the dataset and the file */
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Writing 2nd compressed dataset, partially filled & skipping huffman
*/
fcomp = SDstart(COMPFILE2, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet2", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
/* Set fill value */
fillval = 43;
status = SDsetfillvalue(newsds, (void *)&fillval);
CHECK(status, FAIL, "SDsetfillvalue");
/* Set the dataset to be compressed with skipping huffman */
cinfo.skphuff.skp_size = 4;
status = SDsetcompress(newsds, COMP_CODE_SKPHUFF, &cinfo);
CHECK(status, FAIL, "SDsetcompress");
/* fill the array with the standard info */
for (i = 0; i < 25; i++)
idata[i] = i * 10;
/* overwrite selected portions with the fill value */
for (i = 0; i < 5; i++)
idata[i] = fillval;
for (i = 20; i < 25; i++)
idata[i] = fillval;
/* Write to the dataset */
start[0] = 1;
start[1] = 0;
end[0] = 3;
end[1] = 5;
status = SDwritedata(newsds, start, NULL, end, (void *)&idata[5]);
CHECK(status, FAIL, "SDwritedata");
/* End access to the datase */
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read and verify the compressed data and information
*/
fcomp = SDstart(COMPFILE2, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
/* Get the dataset by its name */
index = SDnametoindex(fcomp, "CompDataSet2");
CHECK(index, FAIL, "SDnametoindex");
newsds2 = SDselect(fcomp, index);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (idata[i] != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Creating 3rd compressed dataset, compressed template & skipping huffman
*/
fcomp = SDstart(COMPFILE3, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet3", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
fillval = 56;
status = SDsetfillvalue(newsds, (void *)&fillval);
CHECK(status, FAIL, "SDsetfillvalue");
cinfo.skphuff.skp_size = 4;
status = SDsetcompress(newsds, COMP_CODE_SKPHUFF, &cinfo);
CHECK(status, FAIL, "SDsetcompress");
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read the compressed data back in
*/
fcomp = SDstart(COMPFILE3, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (fillval != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Creating 4th compressed dataset, compressed template read, then
* partial write & skipping huffman
*/
fcomp = SDstart(COMPFILE4, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet4", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
fillval = 67;
status = SDsetfillvalue(newsds, (void *)&fillval);
CHECK(status, FAIL, "SDsetfillvalue");
cinfo.skphuff.skp_size = 4;
status = SDsetcompress(newsds, COMP_CODE_SKPHUFF, &cinfo);
CHECK(status, FAIL, "SDsetcompress");
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read the compressed data back in
*/
fcomp = SDstart(COMPFILE4, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (fillval != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Modifying first compressed dataset.
*/
fcomp = SDstart(COMPFILE4, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
/* fill the array with the standard info */
for (i = 0; i < 25; i++)
idata[i] = i * 10;
/* overwrite selected portions with the fill value */
for (i = 0; i < 10; i++)
idata[i] = fillval;
for (i = 20; i < 25; i++)
idata[i] = fillval;
start[0] = 2;
start[1] = 0;
end[0] = 2;
end[1] = 5;
status = SDwritedata(newsds, start, NULL, end, (void *)&idata[10]);
CHECK(status, FAIL, "SDwritedata");
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
fcomp = SDstart(COMPFILE4, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (idata[i] != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Writing 5th compressed dataset, basic RLE.
*/
fcomp = SDstart(COMPFILE5, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet5", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
for (i = 0; i < 25; i++)
idata[i] = i * 10;
status = SDsetcompress(newsds, COMP_CODE_RLE, &cinfo);
CHECK(status, FAIL, "SDcompress");
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDwritedata(newsds, start, NULL, end, (void *)idata);
CHECK(status, FAIL, "SDwritedata");
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read the compressed data back in.
*/
fcomp = SDstart(COMPFILE5, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
/*
* Retrieve and verify the compression info - bug# 307
*/
#ifndef H4_NO_DEPRECATED_SYMBOLS
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompress(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompress");
VERIFY(comp_type, COMP_CODE_RLE, "SDgetcompress");
#endif /* H4_NO_DEPRECATED_SYMBOLS */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompinfo(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_RLE, "SDgetcompinfo");
/* Only get the compression method and verify it */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
status = SDgetcomptype(newsds2, &comp_type);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_RLE, "SDgetcompinfo");
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (idata[i] != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Writing 6th compressed dataset, no encoding
*/
fcomp = SDstart(COMPFILE6, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet6", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
for (i = 0; i < 25; i++)
idata[i] = i * 10;
status = SDsetcompress(newsds, COMP_CODE_NONE, &cinfo);
CHECK(status, FAIL, "SDcompress");
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDwritedata(newsds, start, NULL, end, (void *)idata);
CHECK(status, FAIL, "SDwritedata");
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read the compressed data back in.
*/
fcomp = SDstart(COMPFILE6, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
/*
* Retrieve and verify the compression info - bug# 307
*/
#ifndef H4_NO_DEPRECATED_SYMBOLS
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompress(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompress");
VERIFY(comp_type, COMP_CODE_NONE, "SDgetcompress");
#endif /* H4_NO_DEPRECATED_SYMBOLS */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompinfo(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_NONE, "SDgetcompinfo");
/* Only get the compression method and verify it */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
status = SDgetcomptype(newsds2, &comp_type);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_NONE, "SDgetcompinfo");
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (idata[i] != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Writing 7th compressed dataset, deflate encoding.
*/
fcomp = SDstart(COMPFILE7, DFACC_CREATE);
CHECK(fcomp, FAIL, "SDstart");
nt = DFNT_INT32;
dimsize[0] = 5;
dimsize[1] = 5;
newsds = SDcreate(fcomp, "CompDataSet7", nt, 2, dimsize);
if (newsds == FAIL) {
fprintf(stderr, "Failed to create a new data set for compression testing\n");
num_errs++;
}
for (i = 0; i < 25; i++)
idata[i] = i * 10;
cinfo.deflate.level = 6;
status = SDsetcompress(newsds, COMP_CODE_DEFLATE, &cinfo);
CHECK(status, FAIL, "SDcompress");
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDwritedata(newsds, start, NULL, end, (void *)idata);
CHECK(status, FAIL, "SDwritedata");
status = SDendaccess(newsds);
CHECK(status, FAIL, "SDendaccess");
/* need to close to flush compressed info to file */
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/*
* Read the compressed data back in.
*/
fcomp = SDstart(COMPFILE7, DFACC_RDWR);
CHECK(fcomp, FAIL, "SDstart (again)");
newsds2 = SDselect(fcomp, 0);
if (newsds == FAIL) {
fprintf(stderr, "Failed to select a data set for compressed access\n");
num_errs++;
}
/*
* Retrieve and verify the compression info - bug# 307
*/
#ifndef H4_NO_DEPRECATED_SYMBOLS
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompress(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompress");
VERIFY(comp_type, COMP_CODE_DEFLATE, "SDgetcompress");
VERIFY(cinfo.deflate.level, 6, "SDgetcompress");
#endif /* H4_NO_DEPRECATED_SYMBOLS */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
memset(&cinfo, 0, sizeof(cinfo));
status = SDgetcompinfo(newsds2, &comp_type, &cinfo);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_DEFLATE, "SDgetcompinfo");
VERIFY(cinfo.deflate.level, 6, "SDgetcompinfo");
/* Only get the compression method and verify it */
comp_type = COMP_CODE_INVALID; /* reset variables before retrieving info */
status = SDgetcomptype(newsds2, &comp_type);
CHECK(status, FAIL, "SDgetcompinfo");
VERIFY(comp_type, COMP_CODE_DEFLATE, "SDgetcompinfo");
start[0] = start[1] = 0;
end[0] = end[1] = 5;
status = SDreaddata(newsds2, start, NULL, end, (void *)rdata);
CHECK(status, FAIL, "SDreaddata");
for (i = 0; i < 25; i++)
if (idata[i] != rdata[i]) {
fprintf(stderr, "Bogus val in loc %d in compressed dset want %ld got %ld\n", i, (long)idata[i],
(long)rdata[i]);
num_errs++;
}
status = SDendaccess(newsds2);
CHECK(status, FAIL, "SDendaccess");
status = SDend(fcomp);
CHECK(status, FAIL, "SDend");
/* Return the number of errors that's been kept track of so far */
return num_errs;
} /* end test_compressed_data */
extern int
test_compression()
{
intn num_errs = 0; /* number of errors */
/* Output message about test being performed */
TESTING("create/read/write compressed datasets (tcomp.c)");
/* create various data sets with different compression methods */
num_errs = num_errs + test_various_comps();
/* test writing and reading data sets with compression */
num_errs = num_errs + test_compressed_data();
if (num_errs == 0)
PASSED();
else
H4_FAILED();
/* Return the number of errors that's been kept track of so far */
return num_errs;
}
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