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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "szlib.h"
#define OPTIONS_MASK (SZ_RAW_OPTION_MASK \
| SZ_MSB_OPTION_MASK \
| SZ_NN_OPTION_MASK)
#define PIXELS_PER_BLOCK (8)
#define PIXELS_PER_SCANLINE (PIXELS_PER_BLOCK*128)
int main(int argc, char *argv[])
{
int status = 0;
SZ_com_t sz_param;
unsigned char *source = NULL;
unsigned char *dest = NULL;
unsigned char *dest1 = NULL;
size_t destLen, dest1Len, sourceLen;
FILE *fp;
if (argc < 2) {
fprintf(stderr, "Usage: %s file\n", argv[0]);
return 1;
}
if ((fp = fopen(argv[1], "rb")) == NULL) {
fprintf(stderr, "Can't open %s\n", argv[1]);
return 1;
}
fseek(fp, 0L, SEEK_END);
sourceLen = ftell(fp);
fseek(fp, 0L, SEEK_SET);
destLen = sourceLen + sourceLen / 10;
sz_param.options_mask = OPTIONS_MASK;
sz_param.bits_per_pixel = 64;
sz_param.pixels_per_block = PIXELS_PER_BLOCK;
sz_param.pixels_per_scanline = PIXELS_PER_SCANLINE;
source = (unsigned char *)malloc(sourceLen);
dest = (unsigned char *)malloc(destLen);
dest1 = (unsigned char *)malloc(destLen);
if (source == NULL || dest == NULL || dest1 == NULL) {
status = 99;
goto DESTRUCT;
}
sourceLen = fread(source, 1, sourceLen, fp);
status = SZ_BufftoBuffCompress(dest, &destLen,
source, sourceLen, &sz_param);
if (status != SZ_OK)
goto DESTRUCT;
dest1Len = sourceLen;
status = SZ_BufftoBuffDecompress(dest1, &dest1Len,
dest, destLen, &sz_param);
if (status != SZ_OK)
goto DESTRUCT;
if (memcmp(source, dest1, sourceLen) != 0)
fprintf(stderr, "File %s Buffers differ\n", argv[2]);
DESTRUCT:
if (source)
free(source);
if (dest)
free(dest);
if (dest1)
free(dest1);
return status;
}
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