1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <glob.h>
#include <string.h>
#include <openssl/sha.h>
#include <libgen.h>
#include "read-png.h"
#include "read-cache.h"
static void hash_image(FILE *cache, const char *path)
{
unsigned int width, height, stride;
unsigned char *buf;
unsigned char hash[SHA_DIGEST_LENGTH];
unsigned int buffer_length;
read_png_status_t status;
char *path_copy = strdup(path);
char *name = basename(path_copy);
status = read_png_argb32 (path, &buf, &width, &height, &stride);
buffer_length = height * stride;
printf("%d %d %d\n", width, height, stride);
SHA1(buf, buffer_length, hash);
int i;
for (i=0; i<sizeof(hash); i++) {
printf("%02x", hash[i]);
}
printf("\n");
/* write the NULL character as well */
fwrite(name, 1, strlen(name)+1, cache);
fwrite(hash, 1, sizeof(hash), cache);
free(path_copy);
free(buf);
}
int main(int argc, char **argv)
{
glob_t globbuf;
int i;
FILE *cache;
if (argc > 1) {
/* search in directory of first argument for cache file */
cache = cache_open(argv[1], "w+");
} else {
cache = cache_open("test/", "w+");
}
if (!cache) {
printf("could not open cache\n");
exit(1);
}
if (argc > 1) {
for (i=1; i<argc; i++) {
char *glob_pat;
asprintf(&glob_pat, "%s*-ref.png", argv[i]);
printf("pat: %s\n", glob_pat);
glob(glob_pat, 0, NULL, &globbuf);
int j;
for (j=0; j<globbuf.gl_pathc; j++) {
printf("%s\n", globbuf.gl_pathv[j]);
hash_image(cache, globbuf.gl_pathv[j]);
}
globfree(&globbuf);
free(glob_pat);
}
} else {
glob("tests/*.pdf*-ref.png", 0, NULL, &globbuf);
for (i=0; i<globbuf.gl_pathc; i++) {
printf("%s\n", globbuf.gl_pathv[i]);
hash_image(cache, globbuf.gl_pathv[i]);
}
globfree(&globbuf);
}
fclose(cache);
return 0;
}
|
