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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <stdlib.h>
#include <string.h>
#include "hdiff.h"
#include "hdiff_list.h"
#include "hdiff_mattbl.h"
/*-------------------------------------------------------------------------
* Function: diff_gr
*
* Purpose: diff for GR
*
* Return: Number of differences found
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: August 27, 2003
*
*-------------------------------------------------------------------------
*/
uint32
diff_gr(int32 gr1_id, int32 gr2_id, int32 ref1, int32 ref2, diff_opt_t *opt)
{
int32 ri1_id = -1, /* data set identifier */
ri1_index, /* index number of the data set */
dtype1, /* GR data type */
dimsizes1[H4_MAX_VAR_DIMS], /* dimensional size */
nattrs1, /* number of attributes */
ncomps1, /* number of components */
interlace_mode1, /* interlace mode of an image */
ri2_id = -1, /* data set identifier */
ri2_index, /* index number of the data set */
dtype2, /* GR data type */
dimsizes2[H4_MAX_VAR_DIMS], /* dimensional size */
nattrs2, /* number of attributes */
ncomps2, /* number of components */
interlace_mode2, /* interlace mode of an image */
start[H4_MAX_VAR_DIMS], /* read start */
edges[H4_MAX_VAR_DIMS], /* read edges */
numtype, /* number type */
eltsz, /* element size */
data_size;
uint32 nelms; /* number of elements */
char gr1_name[H4_MAX_NC_NAME];
char gr2_name[H4_MAX_NC_NAME];
int dim_diff = 0; /* dimensions are different */
void *buf1 = NULL;
void *buf2 = NULL;
uint32 max_err_cnt;
int i, cmp;
uint32 nfound = 0;
int compare = 1;
/*-------------------------------------------------------------------------
* object 1
*-------------------------------------------------------------------------
*/
ri1_index = GRreftoindex(gr1_id, (uint16)ref1);
ri1_id = GRselect(gr1_id, ri1_index);
/*obtain name,rank,dimsizes,datatype and num of attributes of gr */
if (GRgetiminfo(ri1_id, gr1_name, &ncomps1, &dtype1, &interlace_mode1, dimsizes1, &nattrs1) == FAIL) {
printf("Failed to get info for SDS ref <%d>\n", ref1);
goto out;
}
/*-------------------------------------------------------------------------
* object 2
*-------------------------------------------------------------------------
*/
ri2_index = GRreftoindex(gr2_id, (uint16)ref2);
ri2_id = GRselect(gr2_id, ri2_index);
/*obtain name,rank,dimsizes,datatype and num of attributes of gr */
if (GRgetiminfo(ri2_id, gr2_name, &ncomps2, &dtype2, &interlace_mode2, dimsizes2, &nattrs2) == FAIL) {
printf("Failed to get info for SDS ref <%d>\n", ref2);
goto out;
}
if (opt->verbose)
printf("Comparing <%s>\n", gr1_name);
/*-------------------------------------------------------------------------
* check for different type
*-------------------------------------------------------------------------
*/
if (dtype1 != dtype2) {
printf("Comparison not supported\n");
printf("<%s> has datatype %d, <%s> has datatype %d ", gr1_name, dtype1, gr2_name, dtype2);
compare = 0;
}
/*-------------------------------------------------------------------------
* check for the same rank
*-------------------------------------------------------------------------
*/
if (ncomps1 != ncomps2) {
printf("Comparison not supported\n");
printf("<%s> has %d components\n", gr1_name, ncomps1);
printf("\n");
printf("<%s> has %d components\n", gr2_name, ncomps2);
compare = 0;
}
/*-------------------------------------------------------------------------
* check for different dimensions
*-------------------------------------------------------------------------
*/
for (i = 0; i < 2; i++) {
if (dimsizes1[i] != dimsizes2[i])
dim_diff = 1;
}
/*-------------------------------------------------------------------------
* dimensions
*-------------------------------------------------------------------------
*/
if (dim_diff == 1) {
printf("Comparison not supported\n");
printf("<%s> has dimensions ", gr1_name);
print_dims(2, dimsizes1);
printf("\n");
printf("<%s> has dimensions ", gr2_name);
print_dims(2, dimsizes2);
compare = 0;
}
/*-------------------------------------------------------------------------
* match interlace
* NOTE: GR images are always stored as pixel_interlace (0) on disk
* that does not happen with images saved with the
* DF24 - Single-file 24-Bit Raster Image Interface,
* where the interlace mode on disk can be 0, 1 or 2
*-------------------------------------------------------------------------
*/
if (interlace_mode1 != interlace_mode2) {
if (opt->verbose)
printf("Warning: different interlace mode: <%d> and <%d>\n", interlace_mode1, interlace_mode2);
interlace_mode1 = interlace_mode2;
}
/*-------------------------------------------------------------------------
* get size
*-------------------------------------------------------------------------
*/
/* compute the number of the bytes for each value. */
numtype = dtype1 & DFNT_MASK;
eltsz = DFKNTsize(numtype | DFNT_NATIVE);
/* set edges of SDS */
nelms = 1;
for (i = 0; i < 2; i++) {
nelms *= dimsizes1[i];
edges[i] = dimsizes1[i];
start[i] = 0;
}
data_size = dimsizes1[0] * dimsizes1[1] * ncomps1 * eltsz;
if (compare) {
/*-------------------------------------------------------------------------
* read image 1
*-------------------------------------------------------------------------
*/
/* alloc */
if ((buf1 = (void *)malloc(data_size)) == NULL) {
printf("Failed to allocate %u elements of size %d\n", nelms, eltsz);
goto out;
}
/* set the interlace for reading */
if (GRreqimageil(ri1_id, interlace_mode1) == FAIL) {
printf("Could not set interlace for GR <%s>\n", gr1_name);
goto out;
}
/* read data */
if (GRreadimage(ri1_id, start, NULL, edges, buf1) == FAIL) {
printf("Could not read GR <%s>\n", gr1_name);
goto out;
}
/*-------------------------------------------------------------------------
* read image 2
*-------------------------------------------------------------------------
*/
/* alloc */
if ((buf2 = (void *)malloc(data_size)) == NULL) {
printf("Failed to allocate %u elements of size %d\n", nelms, eltsz);
goto out;
}
/* set the interlace for reading */
if (GRreqimageil(ri2_id, interlace_mode2) == FAIL) {
printf("Could not set interlace for GR <%s>\n", gr2_name);
goto out;
}
/* read data */
if (GRreadimage(ri2_id, start, NULL, edges, buf2) == FAIL) {
printf("Could not read GR <%s>\n", gr2_name);
goto out;
}
/*-------------------------------------------------------------------------
* comparing
*-------------------------------------------------------------------------
*/
cmp = memcmp(buf1, buf2, data_size);
if (cmp != 0) {
/* if the given max_err_cnt is set (i.e. not its default MAX_DIFF),
use it, otherwise, use the total number of elements in the dataset */
max_err_cnt = (opt->max_err_cnt != MAX_DIFF) ? opt->max_err_cnt : nelms;
nfound = array_diff(buf1, buf2, nelms, gr1_name, gr2_name, 2, dimsizes1, dtype1, opt->err_limit,
opt->err_rel, max_err_cnt, opt->statistics, 0, 0);
}
} /* compare */
/*-------------------------------------------------------------------------
* close
*-------------------------------------------------------------------------
*/
GRendaccess(ri1_id);
GRendaccess(ri2_id);
free(buf1);
free(buf2);
return nfound;
out:
opt->err_stat = 1;
if (ri1_id != -1)
GRendaccess(ri1_id);
if (ri2_id != -1)
GRendaccess(ri2_id);
free(buf1);
free(buf2);
return 0;
}
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