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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* paltohdf.c
* Version: 1.0 date: August 1, 1989
* This utility converts a raw palette to hdf format
* The incoming palette is assumed to have 768 bytes:
* 256 red values, 256 greens, and 256 blues.
* The palette in the HDF file will have the RGB values
* interlaced: RGB RGB ... (This is standard HDF format.)
*
* by Mike Folk
* first version of paltohdf: 8/01/89
*
* This program is in the public domain
*/
#include <stdlib.h>
#include "hdf.h"
int main(int argc, char *argv[]);
int palconv(char *palfile, char *outfile);
int
main(int argc, char *argv[])
{
if (argc != 3) {
printf("Usage:\n");
printf(" %s rawpalfile hdffile \n\n", argv[0]);
printf("%s, version: 1.1 date: July 1, 1992\n\n", argv[0]);
printf("\t This utility converts a raw palette to hdf format \n\n");
printf("\t The incoming palette is assumed to have 768 bytes:\n");
printf("\t 256 red values, 256 greens, and 256 blues.\n\n");
printf("\t The palette in the HDF file will have the RGB values\n");
printf("\t interlaced: RGB RGB ... (standard HDF format).\n\n");
exit(1);
}
palconv(argv[1], argv[2]);
return (0);
}
/*
* palconv(palfile, outfile) sets the palette
*/
int
palconv(char *palfile, char *outfile)
{
unsigned char palspace[1024], reds[256], greens[256], blues[256], *p;
FILE *fp;
int j, ret;
fp = fopen(palfile, "r");
if (fp == NULL) {
printf(" Error opening palette file %s\n", palfile);
exit(1);
}
fread(reds, 1, 256, fp);
fread(greens, 1, 256, fp);
fread(blues, 1, 256, fp);
fclose(fp);
p = palspace;
for (j = 0; j < 256; j++) {
*p++ = reds[j];
*p++ = greens[j];
*p++ = blues[j];
}
ret = DFPaddpal(outfile, (void *)palspace);
if (ret < 0) {
printf(" Error: %d, in writing palette %s\n", ret, palfile);
exit(1);
}
return (0);
}
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