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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
#include <stdlib.h>
#include <gmodule.h>
#include <clutter/clutter.h>
enum
{
LOAD_SYNC,
LOAD_DATA_ASYNC,
LOAD_ASYNC
};
static ClutterActor *stage = NULL;
static void
on_load_finished (ClutterTexture *texture,
const GError *error,
gpointer user_data)
{
gint load_type = GPOINTER_TO_INT (user_data);
const gchar *load_str = NULL;
switch (load_type)
{
case LOAD_SYNC:
load_str = "synchronous loading";
break;
case LOAD_DATA_ASYNC:
load_str = "asynchronous data loading";
break;
case LOAD_ASYNC:
load_str = "asynchronous loading";
break;
}
if (error != NULL)
g_print ("%s failed: %s\n", load_str, error->message);
else
g_print ("%s successful\n", load_str);
}
static void
size_change_cb (ClutterTexture *texture,
gint width,
gint height,
gpointer user_data)
{
clutter_actor_set_size (user_data, width, height);
}
static
gboolean task (gpointer user_data)
{
const gchar *path = user_data;
ClutterActor *image[3];
ClutterActor *clone[3];
gint i;
image[0] = g_object_new (CLUTTER_TYPE_TEXTURE, NULL);
g_signal_connect (image[0], "load-finished",
G_CALLBACK (on_load_finished),
GINT_TO_POINTER (LOAD_SYNC));
image[1] = g_object_new (CLUTTER_TYPE_TEXTURE,
"load-data-async", TRUE,
NULL);
g_signal_connect (image[1], "load-finished",
G_CALLBACK (on_load_finished),
GINT_TO_POINTER (LOAD_DATA_ASYNC));
image[2] = g_object_new (CLUTTER_TYPE_TEXTURE,
"load-async", TRUE,
NULL);
g_signal_connect (image[2], "load-finished",
G_CALLBACK (on_load_finished),
GINT_TO_POINTER (LOAD_ASYNC));
for (i = 0; i < 3; i++)
{
GError *error = NULL;
clutter_texture_set_from_file (CLUTTER_TEXTURE (image[i]), path, &error);
if (error != NULL)
g_error ("Unable to load image at '%s': %s",
path != NULL ? path : "<unknown>",
error->message);
}
for (i = 0; i < 3; i++)
clutter_container_add_actor (CLUTTER_CONTAINER (stage), image[i]);
for (i = 0; i < 3; i++)
{
clutter_actor_set_position (image[i], 50 + i * 100, 0 + i * 50);
clutter_actor_set_depth (image[i], -2500);
clone[i] = clutter_clone_new (image[i]);
g_signal_connect (image[i], "size-change",
G_CALLBACK (size_change_cb), clone[i]);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), clone[i]);
clutter_actor_set_position (clone[i], 50 + i * 100, 150 + i * 50 + 100);
}
for (i = 0; i < 3; i++)
{
clutter_actor_save_easing_state (image[i]);
clutter_actor_set_easing_duration (image[i], 5000);
clutter_actor_set_depth (image[i], 0);
clutter_actor_restore_easing_state (image[i]);
}
return FALSE;
}
static void
cleanup_task (gpointer data)
{
}
G_MODULE_EXPORT gint
test_texture_async_main (int argc, char *argv[])
{
gchar *path;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
stage = clutter_stage_new ();
clutter_stage_set_title (CLUTTER_STAGE (stage), "Asynchronous Texture Loading");
clutter_actor_set_background_color (stage, CLUTTER_COLOR_LightSkyBlue);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
clutter_actor_show (stage);
path = (argc > 1)
? g_strdup (argv[1])
: g_build_filename (TESTS_DATADIR, "redhand.png", NULL);
clutter_threads_add_timeout_full (G_PRIORITY_DEFAULT, 500,
task, path,
cleanup_task);
clutter_threads_enter ();
clutter_main ();
clutter_threads_leave ();
g_free (path);
return EXIT_SUCCESS;
}
G_MODULE_EXPORT const char *
test_texture_async_describe (void)
{
return "Texture asynchronous loading using threads";
}
|
