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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* r8tohdf.c
* Encoding of raster images in HDF files
*/
/* The intrepretation of arguments has changed a little. A -p introduces a
palette which will be used for subsequent images, till another -p.
-i and -c introduce a series of images/compressed images */
#include <stdlib.h>
#include "hdf.h"
int32 xdim, ydim;
int main(int argc, char *argv[]);
int palconv(char *palfile);
int imconv(char *outfile, char *imfile, uint16 compress);
int
main(int argc, char *argv[])
{
int is_pal = 0;
int image = 1;
char *outfile = NULL;
uint16 compress = 0;
if (argc < 5) {
printf("%s, version: 1.1 date: July 1, 1992\n", argv[0]);
printf(" This utility converts one or more raw raster-8 images to\n");
printf(" HDF RIS8 format and writes them to an HDF file.\n\n");
printf("Usage:\n");
printf(" %s xdim ydim outfile [-p palfile] ", argv[0]);
printf("{[-r],[-c],[-i]} imagefile\n");
printf("\t\t\t\t... [-p palfile] {[-r],[-c],[-i]} imagefile ...\n");
printf(" -r: Store without compression (default)\n");
printf(" -c: Store using RLE compression\n");
printf(" -i: Store using IMCOMP compression\n\n");
printf("* r8tohdf can take any number of images and palettes\n");
printf("* Compression, palette, apply to all subsequent images.\n");
printf("* All images are assumed to be the same dimensions.\n\n");
exit(1);
}
xdim = atoi(argv[1]);
ydim = atoi(argv[2]);
if (xdim < 1 || ydim < 1) {
printf("Must specify xdim and ydim\n");
exit(1);
}
outfile = argv[3];
for (int i = 4; i < argc; i++) {
if (*argv[i] == '-') {
switch (argv[i][1]) {
case 'p': /* palette */
is_pal = 1;
image = 0;
break;
case 'r': /* raster */
image = 1;
compress = (uint16)0;
break;
case 'c': /* RLE */
image = 1;
compress = DFTAG_RLE;
break;
case 'i': /* IMCOMP */
image = 1;
compress = DFTAG_IMC;
break;
default:
printf("Illegal option: %s, skipping....\n", argv[i]);
break;
}
}
else { /* file name */
if (image) {
if (compress == DFTAG_IMC && is_pal == 0) {
printf("Illegal options. If imcomp compression (-i) ");
printf("chosen, you must supply a palette.\n");
printf("Program aborted.\n");
exit(1);
}
imconv(outfile, argv[i], compress);
}
else {
palconv(argv[i]);
image = 1;
}
}
}
return 0;
}
/*
* palconv(file) sets the palette
*/
int
palconv(char *palfile)
{
uint8 palspace[1024], reds[256], greens[256], blues[256];
uint8 *p = NULL;
FILE *fp = NULL;
int ret = FAIL;
size_t fret = 0;
fp = fopen(palfile, "rb");
if (fp == NULL) {
printf(" Error opening palette file %s\n", palfile);
exit(1);
}
fret = fread(reds, 1, 256, fp);
if (fret != 256) {
printf(" Error reading reds\n");
exit(1);
}
fret = fread(greens, 1, 256, fp);
if (fret != 256) {
printf(" Error reading greens\n");
exit(1);
}
fret = fread(blues, 1, 256, fp);
if (fret != 256) {
printf(" Error reading blues\n");
exit(1);
}
fclose(fp);
p = palspace;
for (int j = 0; j < 256; j++) {
*p++ = reds[j];
*p++ = greens[j];
*p++ = blues[j];
}
ret = DFR8setpalette(palspace);
if (ret < 0) {
printf(" Error: %d, in writing palette %s\n", ret, palfile);
exit(1);
}
return 0;
}
int
imconv(char *outfile, char *imfile, uint16 compress)
{
char *space = NULL;
FILE *fp = NULL;
size_t fret = 0;
if ((fp = fopen(imfile, "rb")) == NULL) {
printf("Error opening image file\n");
exit(1);
}
if ((space = (char *)calloc((size_t)(xdim * ydim), sizeof(char))) == NULL) {
printf("Not enough memory to convert image\n");
exit(1);
}
fret = fread(space, sizeof(uint8), (size_t)(xdim * ydim), fp);
if (fret != (size_t)(xdim * ydim)) {
printf("Error reading image file\n");
fclose(fp);
exit(1);
}
if (DFR8addimage(outfile, space, xdim, ydim, compress) < 0) {
printf(" Error: %d, in writing image %s\n", HEvalue(1), outfile);
exit(1);
}
free(space);
fclose(fp);
return 0;
}
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