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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <glib/gstdio.h>
#include <webp/decode.h>
static gchar *
create_filename ()
{
GString *pathbuild = g_string_new (g_get_tmp_dir ());
gchar *id = g_uuid_string_random ();
g_string_append_printf (pathbuild, "%s%s.webp", G_DIR_SEPARATOR_S, id);
g_free (id);
return g_string_free (pathbuild, FALSE);
}
static gboolean
save_func (const gchar *buf, gsize size, GError **error, gpointer user_data)
{
gchar *path = create_filename ();
g_file_set_contents (path, buf, size, error);
if (*error)
{
g_free (path);
return FALSE;
}
*(gchar **) user_data = path;
return TRUE;
}
gint
main (gint argc, gchar **argv)
{
GError *error = NULL;
gchar **env = g_get_environ ();
GdkPixbuf *pixbuf
= gdk_pixbuf_new_from_file (g_environ_getenv (env, "TEST_FILE"), &error);
if (error)
g_error ("%s", error->message);
g_assert (! gdk_pixbuf_get_has_alpha (pixbuf));
g_assert (gdk_pixbuf_get_width (pixbuf) == 200);
g_assert (gdk_pixbuf_get_height (pixbuf) == 200);
g_strfreev (env);
/* We compare if creating by file and by callback creates the same content */
char *keys[3] = { "preset", "quality", NULL };
char *vals[3] = { "photo", "98", NULL };
gchar *path_1 = NULL;
gdk_pixbuf_save_to_callbackv (pixbuf, save_func, &path_1, "webp", keys, vals, &error);
if (error)
g_error ("%s", error->message);
g_assert_nonnull (path_1);
gchar *path_2 = create_filename ();
gdk_pixbuf_save (pixbuf, path_2, "webp", &error, keys[0], vals[0], keys[1], vals[1], NULL);
if (error)
g_error ("%s", error->message);
gsize length = 0;
gchar *contents1 = NULL;
g_file_get_contents (path_1, &contents1, &length, &error);
if (error)
g_error ("%s", error->message);
gchar *sum1 = g_compute_checksum_for_data (G_CHECKSUM_SHA256, (guchar *) contents1, length);
g_assert_nonnull (sum1);
gchar *contents2 = NULL;
g_file_get_contents (path_2, &contents2, &length, &error);
if (error)
g_error ("%s", error->message);
gchar *sum2 = g_compute_checksum_for_data (G_CHECKSUM_SHA256, (guchar *) contents2, length);
g_assert_nonnull (sum2);
/* check if they share the same checksum */
g_assert (g_strcmp0 (sum1, sum2) == 0);
GdkPixbuf *pb_from_file = gdk_pixbuf_new_from_file (path_1, &error);
g_assert_cmpint (gdk_pixbuf_get_width (pb_from_file), ==, 200);
g_assert_cmpint (gdk_pixbuf_get_height (pb_from_file), ==, 200);
g_assert (! gdk_pixbuf_get_has_alpha (pb_from_file));
g_remove (path_1);
g_remove (path_2);
g_free (sum1);
g_free (sum2);
g_free (contents1);
g_free (contents2);
g_free (path_1);
g_free (path_2);
g_object_unref (pixbuf);
g_object_unref (pb_from_file);
return 0;
}
|
