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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 <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "hrepack.h"
#include "hrepack_parse.h"
#ifdef H4_HAVE_LIBSZ
#include "szlib.h"
#endif
/*-------------------------------------------------------------------------
* Function: parse_comp
*
* Purpose: read compression info
*
* Return: a list of names, the number of names and its compression type
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: July 15, 2003
*
*-------------------------------------------------------------------------
*/
obj_list_t *
parse_comp(const char *str, int *n_objs, comp_info_t *comp)
{
unsigned i, u;
char c;
size_t len = strlen(str);
int j, m, n, k, end_obj = -1, no_param = 0, l;
char obj[H4_MAX_NC_NAME];
char scomp[10];
char stype[5];
char smask[3];
obj_list_t *obj_list = NULL;
/* check for the end of object list and number of objects */
for (i = 0, n = 0; i < len; i++) {
c = str[i];
if (c == ':') {
end_obj = i;
}
if (c == ',') {
n++;
}
}
if (end_obj == -1) { /* missing : */
printf("Input Error: Invalid compression input in <%s>\n", str);
return NULL;
}
/*-------------------------------------------------------------------------
* allocate the object list of names
*-------------------------------------------------------------------------
*/
n++;
obj_list = malloc(n * sizeof(obj_list_t));
*n_objs = n;
/* get object list */
for (j = 0, k = 0, n = 0; j < end_obj; j++, k++) {
c = str[j];
obj[k] = c;
if (c == ',' || j == end_obj - 1) {
if (c == ',')
obj[k] = '\0';
else
obj[k + 1] = '\0';
strcpy(obj_list[n].obj, obj);
memset(obj, 0, sizeof(obj));
n++;
k = -1;
}
}
/* nothing after : */
if (end_obj + 1 == (int)len) {
printf("Input Error: Invalid compression type in <%s>\n", str);
goto out;
}
/*-------------------------------------------------------------------------
* get compression type
*-------------------------------------------------------------------------
*/
m = 0;
for (i = end_obj + 1, k = 0; i < len; i++, k++) {
c = str[i];
scomp[k] = c;
if (c == ' ' || i == len - 1) {
if (c == ' ') /*one more parameter */
{
scomp[k] = '\0'; /*cut space */
/*
SZIP is a special case , it can be
SZIP=8,EC
SZIP=8,NN
*/
if (strcmp(scomp, "SZIP") == 0) {
l = -1; /* mask index check */
for (m = 0, u = i + 1; u < len; u++, m++) {
if (str[u] == ',') {
stype[m] = '\0'; /* end digit of szip */
l = 0; /* start EC or NN search */
u++; /* skip ',' */
}
c = str[u];
if (!isdigit(c) && l == -1) {
printf("Input Error: Compression parameter not digit in <%s>\n", str);
goto out;
}
if (l == -1)
stype[m] = c;
else {
smask[l] = c;
l++;
if (l == 2) {
smask[l] = '\0';
i = len - 1; /* end */
(*n_objs)--; /* we counted an extra ',' */
if (strcmp(smask, "NN") == 0)
comp->szip_mode = NN_MODE;
else if (strcmp(smask, "EC") == 0)
comp->szip_mode = EC_MODE;
else {
printf("Input Error: szip mask must be 'NN' or 'EC' \n");
goto out;
}
}
}
} /* u */
} /* SZIP */
else
{
/* here we could have 1, 2 or 3 digits (2 and 3 in the JPEG case) */
for (m = 0, u = i + 1; u < len; u++, m++) {
c = str[u];
if (!isdigit(c)) {
printf("Input Error: Compression parameter not digit in <%s>\n", str);
goto out;
}
stype[m] = c;
} /* m */
} /* else , no SZIP */
/* set return value of the compression parameter */
stype[m] = '\0';
comp->info = atoi(stype);
i += m; /* jump */
} /* if c==' ' */
else if (i == len - 1) { /*no more parameters */
scomp[k + 1] = '\0';
no_param = 1;
}
if (strcmp(scomp, "NONE") == 0)
comp->type = COMP_CODE_NONE;
else if (strcmp(scomp, "RLE") == 0) {
comp->type = COMP_CODE_RLE;
if (m > 0) { /*RLE does not have parameter */
printf("Input Error: Extra compression parameter in RLE <%s>\n", str);
goto out;
}
}
else if (strcmp(scomp, "HUFF") == 0) {
comp->type = COMP_CODE_SKPHUFF;
if (no_param) { /*no more parameters, HUFF must have parameter */
printf("Input Error: Missing compression parameter in <%s>\n", str);
goto out;
}
}
else if (strcmp(scomp, "GZIP") == 0) {
comp->type = COMP_CODE_DEFLATE;
if (no_param) { /*no more parameters, GZIP must have parameter */
printf("Input Error: Missing compression parameter in <%s>\n", str);
goto out;
}
}
else if (strcmp(scomp, "JPEG") == 0) {
comp->type = COMP_CODE_JPEG;
if (no_param) { /*no more parameters, JPEG must have parameter */
printf("Input Error: Missing compression parameter in <%s>\n", str);
goto out;
}
}
else if (strcmp(scomp, "SZIP") == 0) {
#ifdef H4_HAVE_LIBSZ
if (SZ_encoder_enabled()) {
comp->type = COMP_CODE_SZIP;
if (no_param) { /*no more parameters, SZIP must have parameter */
printf("Input Error: Missing compression parameter in <%s>\n", str);
goto out;
}
if (comp->szip_mode == FAIL) {
printf("Input Error: SZIP compression mode must be NN_MODE or EC_MODE");
goto out;
}
}
else {
printf("Input Error: SZIP encoder is not available\n");
goto out;
}
#else
printf("Input Error: SZIP compression is not available\n");
goto out;
#endif
}
else {
printf("Input Error: Invalid compression type in <%s>\n", str);
goto out;
}
}
} /*i*/
/*-------------------------------------------------------------------------
* check valid parameters
*-------------------------------------------------------------------------
*/
switch (comp->type) {
default:
break;
case COMP_CODE_RLE:
break;
case COMP_CODE_SKPHUFF:
if (comp->info <= 0) {
printf("Input Error: Invalid compression parameter in <%s>\n", str);
goto out;
}
break;
case COMP_CODE_DEFLATE:
if (comp->info < 0 || comp->info > 9) {
printf("Input Error: Invalid compression parameter in <%s>\n", str);
goto out;
}
break;
case COMP_CODE_JPEG:
if (comp->info < 0 || comp->info > 100) {
printf("Input Error: Invalid compression parameter in <%s>\n", str);
goto out;
}
break;
case COMP_CODE_SZIP:
#ifdef H4_HAVE_LIBSZ
if ((comp->info <= 1 || comp->info > SZ_MAX_PIXELS_PER_BLOCK) || (comp->info % 2 != 0)) {
printf("Input Error: Invalid compression parameter in <%s>. \
Pixels per block must be an even number < %d\n",
str, SZ_MAX_PIXELS_PER_BLOCK);
goto out;
}
#else
printf("Input Error: Invalid compression method in <%s>. SZIP is not available\n", str);
goto out;
#endif
break;
};
return obj_list;
out:
free(obj_list);
return NULL;
}
/*-------------------------------------------------------------------------
* Function: parse_chunk
*
* Purpose: read chunk info
*
* Return: a list of names, the number of names and its chunking info
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: July 17, 2003
*
*-------------------------------------------------------------------------
*/
obj_list_t *
parse_chunk(const char *str, int *n_objs, int32 *chunk_lengths, int *chunk_rank)
{
obj_list_t *obj_list = NULL;
unsigned i;
char c;
size_t len = strlen(str);
int j, n, k, end_obj = -1, c_index;
char obj[H4_MAX_NC_NAME];
char sdim[10];
/* check for the end of object list and number of objects */
for (i = 0, n = 0; i < len; i++) {
c = str[i];
if (c == ':') {
end_obj = i;
}
if (c == ',') {
n++;
}
}
if (end_obj == -1) { /* missing : */
printf("Input Error: Invalid chunking input in <%s>\n", str);
return NULL;
}
/*-------------------------------------------------------------------------
* allocate the object list of names
*-------------------------------------------------------------------------
*/
n++;
obj_list = malloc(n * sizeof(obj_list_t));
*n_objs = n;
/* get object list */
for (j = 0, k = 0, n = 0; j < end_obj; j++, k++) {
c = str[j];
obj[k] = c;
if (c == ',' || j == end_obj - 1) {
if (c == ',')
obj[k] = '\0';
else
obj[k + 1] = '\0';
strcpy(obj_list[n].obj, obj);
memset(obj, 0, sizeof(obj));
n++;
k = -1;
}
}
/* nothing after : */
if (end_obj + 1 == (int)len) {
printf("Input Error: Invalid chunking in <%s>\n", str);
goto out;
}
/* get chunk info */
k = 0;
for (i = end_obj + 1, c_index = 0; i < len; i++) {
c = str[i];
sdim[k] = c;
k++; /*increment sdim index */
if (!isdigit(c) && c != 'x' && c != 'N' && c != 'O' && c != 'N' && c != 'E') {
printf("Input Error: Invalid chunking in <%s>\n", str);
goto out;
}
if (c == 'x' || i == len - 1) {
if (c == 'x') {
sdim[k - 1] = '\0';
k = 0;
chunk_lengths[c_index] = atoi(sdim);
if (chunk_lengths[c_index] == 0) {
printf("Input Error: Invalid chunking in <%s>\n", str);
goto out;
}
c_index++;
}
else if (i == len - 1) { /*no more parameters */
sdim[k] = '\0';
k = 0;
if (strcmp(sdim, "NONE") == 0) {
*chunk_rank = -2;
}
else {
chunk_lengths[c_index] = atoi(sdim);
if (chunk_lengths[c_index] == 0) {
printf("Input Error: Invalid chunking in <%s>\n", str);
goto out;
}
*chunk_rank = c_index + 1;
}
} /*if */
} /*if c=='x' || i==len-1 */
} /*i*/
return obj_list;
out:
free(obj_list);
return NULL;
}
/*-------------------------------------------------------------------------
* Function: parse_number
*
* Purpose: read a number from command line argument
*
* Return: number, -1 for FAIL
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: July 31, 2003
*
*-------------------------------------------------------------------------
*/
int
parse_number(char *str)
{
unsigned i;
int n;
char c;
size_t len = strlen(str);
for (i = 0; i < len; i++) {
c = str[i];
if (!isdigit(c)) {
return -1;
}
}
str[i] = '\0';
n = atoi(str);
return n;
}
/*-------------------------------------------------------------------------
* Function: get_scomp
*
* Purpose: return the compression type as a string
*
*-------------------------------------------------------------------------
*/
const char *
get_scomp(comp_coder_t code)
{
if (code == COMP_CODE_RLE)
return "RLE";
else if (code == COMP_CODE_NBIT)
return "COMP_CODE_NBIT";
else if (code == COMP_CODE_SKPHUFF)
return "HUFF";
else if (code == COMP_CODE_DEFLATE)
return "GZIP";
else if (code == COMP_CODE_JPEG)
return "JPEG";
else if (code == COMP_CODE_SZIP)
return "SZIP";
else if (code == COMP_CODE_NONE)
return "NONE";
else if (code == COMP_CODE_INVALID)
return "COMP_CODE_INVALID";
else {
printf("Input Error in compression type\n");
return NULL;
}
return NULL;
}
|
