mirror of
https://github.com/brl/mutter.git
synced 2024-12-04 05:40:41 -05:00
0d0286d59e
Just use `NULL`, which is the normal C convention https://gitlab.gnome.org/GNOME/mutter/merge_requests/451
426 lines
11 KiB
C
426 lines
11 KiB
C
#include <glib.h>
|
|
#include <gmodule.h>
|
|
#include <stdlib.h>
|
|
#include <clutter/clutter.h>
|
|
#include <cogl/cogl.h>
|
|
|
|
/* Coglbox declaration
|
|
*--------------------------------------------------*/
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define TEST_TYPE_COGLBOX test_coglbox_get_type()
|
|
|
|
#define TEST_COGLBOX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
|
|
TEST_TYPE_COGLBOX, TestCoglbox))
|
|
|
|
#define TEST_COGLBOX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST ((klass), \
|
|
TEST_TYPE_COGLBOX, TestCoglboxClass))
|
|
|
|
#define TEST_IS_COGLBOX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
|
|
TEST_TYPE_COGLBOX))
|
|
|
|
#define TEST_IS_COGLBOX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE ((klass), \
|
|
TEST_TYPE_COGLBOX))
|
|
|
|
#define TEST_COGLBOX_GET_CLASS(obj) \
|
|
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
|
|
TEST_TYPE_COGLBOX, TestCoglboxClass))
|
|
|
|
typedef struct _TestCoglbox TestCoglbox;
|
|
typedef struct _TestCoglboxClass TestCoglboxClass;
|
|
typedef struct _TestCoglboxPrivate TestCoglboxPrivate;
|
|
|
|
struct _TestCoglbox
|
|
{
|
|
ClutterActor parent;
|
|
|
|
/*< private >*/
|
|
TestCoglboxPrivate *priv;
|
|
};
|
|
|
|
struct _TestCoglboxClass
|
|
{
|
|
ClutterActorClass parent_class;
|
|
|
|
/* padding for future expansion */
|
|
void (*_test_coglbox1) (void);
|
|
void (*_test_coglbox2) (void);
|
|
void (*_test_coglbox3) (void);
|
|
void (*_test_coglbox4) (void);
|
|
};
|
|
|
|
static GType test_coglbox_get_type (void) G_GNUC_CONST;
|
|
|
|
int
|
|
test_cogl_tex_polygon_main (int argc, char *argv[]);
|
|
|
|
const char *
|
|
test_cogl_tex_polygon_describe (void);
|
|
|
|
G_END_DECLS
|
|
|
|
/* Coglbox private declaration
|
|
*--------------------------------------------------*/
|
|
|
|
struct _TestCoglboxPrivate
|
|
{
|
|
CoglHandle sliced_tex, not_sliced_tex;
|
|
gint frame;
|
|
gboolean use_sliced;
|
|
gboolean use_linear_filtering;
|
|
};
|
|
|
|
G_DEFINE_TYPE_WITH_PRIVATE (TestCoglbox, test_coglbox, CLUTTER_TYPE_ACTOR);
|
|
|
|
#define TEST_COGLBOX_GET_PRIVATE(obj) \
|
|
((TestCoglboxPrivate *)test_coglbox_get_instance_private (TEST_COGLBOX ((obj))))
|
|
|
|
/* Coglbox implementation
|
|
*--------------------------------------------------*/
|
|
|
|
static void
|
|
test_coglbox_fade_texture (gfloat x1,
|
|
gfloat y1,
|
|
gfloat x2,
|
|
gfloat y2,
|
|
gfloat tx1,
|
|
gfloat ty1,
|
|
gfloat tx2,
|
|
gfloat ty2)
|
|
{
|
|
CoglTextureVertex vertices[4];
|
|
int i;
|
|
|
|
vertices[0].x = x1;
|
|
vertices[0].y = y1;
|
|
vertices[0].z = 0;
|
|
vertices[0].tx = tx1;
|
|
vertices[0].ty = ty1;
|
|
vertices[1].x = x1;
|
|
vertices[1].y = y2;
|
|
vertices[1].z = 0;
|
|
vertices[1].tx = tx1;
|
|
vertices[1].ty = ty2;
|
|
vertices[2].x = x2;
|
|
vertices[2].y = y2;
|
|
vertices[2].z = 0;
|
|
vertices[2].tx = tx2;
|
|
vertices[2].ty = ty2;
|
|
vertices[3].x = x2;
|
|
vertices[3].y = y1;
|
|
vertices[3].z = 0;
|
|
vertices[3].tx = tx2;
|
|
vertices[3].ty = ty1;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
cogl_color_init_from_4ub (&(vertices[i].color),
|
|
255,
|
|
255,
|
|
255,
|
|
((i ^ (i >> 1)) & 1) ? 0 : 128);
|
|
cogl_color_premultiply (&(vertices[i].color));
|
|
}
|
|
|
|
cogl_polygon (vertices, 4, TRUE);
|
|
}
|
|
|
|
static void
|
|
test_coglbox_triangle_texture (int tex_width,
|
|
int tex_height,
|
|
gfloat x,
|
|
gfloat y,
|
|
gfloat tx1,
|
|
gfloat ty1,
|
|
gfloat tx2,
|
|
gfloat ty2,
|
|
gfloat tx3,
|
|
gfloat ty3)
|
|
{
|
|
CoglTextureVertex vertices[3];
|
|
|
|
vertices[0].x = x + tx1 * tex_width;
|
|
vertices[0].y = y + ty1 * tex_height;
|
|
vertices[0].z = 0;
|
|
vertices[0].tx = tx1;
|
|
vertices[0].ty = ty1;
|
|
|
|
vertices[1].x = x + tx2 * tex_width;
|
|
vertices[1].y = y + ty2 * tex_height;
|
|
vertices[1].z = 0;
|
|
vertices[1].tx = tx2;
|
|
vertices[1].ty = ty2;
|
|
|
|
vertices[2].x = x + tx3 * tex_width;
|
|
vertices[2].y = y + ty3 * tex_height;
|
|
vertices[2].z = 0;
|
|
vertices[2].tx = tx3;
|
|
vertices[2].ty = ty3;
|
|
|
|
cogl_polygon (vertices, 3, FALSE);
|
|
}
|
|
|
|
static void
|
|
test_coglbox_paint (ClutterActor *self)
|
|
{
|
|
TestCoglboxPrivate *priv = TEST_COGLBOX_GET_PRIVATE (self);
|
|
CoglHandle tex_handle = priv->use_sliced ? priv->sliced_tex
|
|
: priv->not_sliced_tex;
|
|
int tex_width = cogl_texture_get_width (tex_handle);
|
|
int tex_height = cogl_texture_get_height (tex_handle);
|
|
CoglHandle material = cogl_material_new ();
|
|
|
|
cogl_material_set_layer (material, 0, tex_handle);
|
|
|
|
cogl_material_set_layer_filters (material, 0,
|
|
priv->use_linear_filtering
|
|
? COGL_MATERIAL_FILTER_LINEAR :
|
|
COGL_MATERIAL_FILTER_NEAREST,
|
|
priv->use_linear_filtering
|
|
? COGL_MATERIAL_FILTER_LINEAR :
|
|
COGL_MATERIAL_FILTER_NEAREST);
|
|
|
|
cogl_push_matrix ();
|
|
cogl_translate (tex_width / 2, 0, 0);
|
|
cogl_rotate (priv->frame, 0, 1, 0);
|
|
cogl_translate (-tex_width / 2, 0, 0);
|
|
|
|
/* Draw a hand and refect it */
|
|
cogl_set_source (material);
|
|
cogl_rectangle_with_texture_coords (0, 0, tex_width, tex_height,
|
|
0, 0, 1, 1);
|
|
test_coglbox_fade_texture (0, tex_height,
|
|
tex_width, (tex_height * 3 / 2),
|
|
0.0, 1.0,
|
|
1.0, 0.5);
|
|
|
|
cogl_pop_matrix ();
|
|
|
|
cogl_push_matrix ();
|
|
cogl_translate (tex_width * 3 / 2 + 60, 0, 0);
|
|
cogl_rotate (priv->frame, 0, 1, 0);
|
|
cogl_translate (-tex_width / 2 - 10, 0, 0);
|
|
|
|
/* Draw the texture split into two triangles */
|
|
test_coglbox_triangle_texture (tex_width, tex_height,
|
|
0, 0,
|
|
0, 0,
|
|
0, 1,
|
|
1, 1);
|
|
test_coglbox_triangle_texture (tex_width, tex_height,
|
|
20, 0,
|
|
0, 0,
|
|
1, 0,
|
|
1, 1);
|
|
|
|
cogl_pop_matrix ();
|
|
|
|
cogl_object_unref (material);
|
|
}
|
|
|
|
static void
|
|
test_coglbox_finalize (GObject *object)
|
|
{
|
|
G_OBJECT_CLASS (test_coglbox_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
test_coglbox_dispose (GObject *object)
|
|
{
|
|
TestCoglboxPrivate *priv;
|
|
|
|
priv = TEST_COGLBOX_GET_PRIVATE (object);
|
|
cogl_object_unref (priv->not_sliced_tex);
|
|
cogl_object_unref (priv->sliced_tex);
|
|
|
|
G_OBJECT_CLASS (test_coglbox_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
test_coglbox_init (TestCoglbox *self)
|
|
{
|
|
TestCoglboxPrivate *priv;
|
|
GError *error = NULL;
|
|
gchar *file;
|
|
|
|
self->priv = priv = TEST_COGLBOX_GET_PRIVATE (self);
|
|
|
|
priv->use_linear_filtering = FALSE;
|
|
priv->use_sliced = FALSE;
|
|
|
|
file = g_build_filename (TESTS_DATADIR, "redhand.png", NULL);
|
|
priv->sliced_tex =
|
|
cogl_texture_new_from_file (file,
|
|
COGL_TEXTURE_NONE,
|
|
COGL_PIXEL_FORMAT_ANY,
|
|
&error);
|
|
if (priv->sliced_tex == NULL)
|
|
{
|
|
if (error)
|
|
{
|
|
g_warning ("Texture loading failed: %s", error->message);
|
|
g_error_free (error);
|
|
error = NULL;
|
|
}
|
|
else
|
|
g_warning ("Texture loading failed: <unknown>");
|
|
}
|
|
|
|
priv->not_sliced_tex =
|
|
cogl_texture_new_from_file (file,
|
|
COGL_TEXTURE_NO_SLICING,
|
|
COGL_PIXEL_FORMAT_ANY,
|
|
&error);
|
|
if (priv->not_sliced_tex == NULL)
|
|
{
|
|
if (error)
|
|
{
|
|
g_warning ("Texture loading failed: %s", error->message);
|
|
g_error_free (error);
|
|
}
|
|
else
|
|
g_warning ("Texture loading failed: <unknown>");
|
|
}
|
|
|
|
g_free (file);
|
|
}
|
|
|
|
static void
|
|
test_coglbox_class_init (TestCoglboxClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
|
|
|
|
gobject_class->finalize = test_coglbox_finalize;
|
|
gobject_class->dispose = test_coglbox_dispose;
|
|
actor_class->paint = test_coglbox_paint;
|
|
}
|
|
|
|
static ClutterActor*
|
|
test_coglbox_new (void)
|
|
{
|
|
return g_object_new (TEST_TYPE_COGLBOX, NULL);
|
|
}
|
|
|
|
static void
|
|
frame_cb (ClutterTimeline *timeline,
|
|
gint elapsed_msecs,
|
|
gpointer data)
|
|
{
|
|
TestCoglboxPrivate *priv = TEST_COGLBOX_GET_PRIVATE (data);
|
|
gdouble progress = clutter_timeline_get_progress (timeline);
|
|
|
|
priv->frame = 360.0 * progress;
|
|
clutter_actor_queue_redraw (CLUTTER_ACTOR (data));
|
|
}
|
|
|
|
static void
|
|
update_toggle_text (ClutterText *button, gboolean val)
|
|
{
|
|
clutter_text_set_text (button, val ? "Enabled" : "Disabled");
|
|
}
|
|
|
|
static gboolean
|
|
on_toggle_click (ClutterActor *button, ClutterEvent *event,
|
|
gboolean *toggle_val)
|
|
{
|
|
update_toggle_text (CLUTTER_TEXT (button), *toggle_val = !*toggle_val);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static ClutterActor *
|
|
make_toggle (const char *label_text, gboolean *toggle_val)
|
|
{
|
|
ClutterActor *group = clutter_group_new ();
|
|
ClutterActor *label = clutter_text_new_with_text ("Sans 14", label_text);
|
|
ClutterActor *button = clutter_text_new_with_text ("Sans 14", "");
|
|
|
|
clutter_actor_set_reactive (button, TRUE);
|
|
|
|
update_toggle_text (CLUTTER_TEXT (button), *toggle_val);
|
|
|
|
clutter_actor_set_position (button, clutter_actor_get_width (label) + 10, 0);
|
|
clutter_container_add (CLUTTER_CONTAINER (group), label, button, NULL);
|
|
|
|
g_signal_connect (button, "button-press-event", G_CALLBACK (on_toggle_click),
|
|
toggle_val);
|
|
|
|
return group;
|
|
}
|
|
|
|
G_MODULE_EXPORT int
|
|
test_cogl_tex_polygon_main (int argc, char *argv[])
|
|
{
|
|
ClutterActor *stage;
|
|
ClutterActor *coglbox;
|
|
ClutterActor *filtering_toggle;
|
|
ClutterActor *slicing_toggle;
|
|
ClutterActor *note;
|
|
ClutterTimeline *timeline;
|
|
ClutterColor blue = { 0x30, 0x30, 0xff, 0xff };
|
|
|
|
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
|
|
return 1;
|
|
|
|
/* Stage */
|
|
stage = clutter_stage_new ();
|
|
clutter_stage_set_color (CLUTTER_STAGE (stage), &blue);
|
|
clutter_actor_set_size (stage, 640, 480);
|
|
clutter_stage_set_title (CLUTTER_STAGE (stage), "Cogl Texture Polygon");
|
|
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
|
|
|
|
/* Cogl Box */
|
|
coglbox = test_coglbox_new ();
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (stage), coglbox);
|
|
|
|
/* Timeline for animation */
|
|
timeline = clutter_timeline_new (6000);
|
|
clutter_timeline_set_loop (timeline, TRUE);
|
|
g_signal_connect (timeline, "new-frame", G_CALLBACK (frame_cb), coglbox);
|
|
clutter_timeline_start (timeline);
|
|
|
|
/* Labels for toggling settings */
|
|
slicing_toggle = make_toggle ("Texture slicing: ",
|
|
&(TEST_COGLBOX_GET_PRIVATE (coglbox)
|
|
->use_sliced));
|
|
clutter_actor_set_position (slicing_toggle, 0,
|
|
clutter_actor_get_height (stage)
|
|
- clutter_actor_get_height (slicing_toggle));
|
|
filtering_toggle = make_toggle ("Linear filtering: ",
|
|
&(TEST_COGLBOX_GET_PRIVATE (coglbox)
|
|
->use_linear_filtering));
|
|
clutter_actor_set_position (filtering_toggle, 0,
|
|
clutter_actor_get_y (slicing_toggle)
|
|
- clutter_actor_get_height (filtering_toggle));
|
|
note = clutter_text_new_with_text ("Sans 10", "<- Click to change");
|
|
clutter_actor_set_position (note,
|
|
clutter_actor_get_width (filtering_toggle) + 10,
|
|
(clutter_actor_get_height (stage)
|
|
+ clutter_actor_get_y (filtering_toggle)) / 2
|
|
- clutter_actor_get_height (note) / 2);
|
|
|
|
clutter_container_add (CLUTTER_CONTAINER (stage),
|
|
slicing_toggle,
|
|
filtering_toggle,
|
|
note,
|
|
NULL);
|
|
|
|
clutter_actor_show (stage);
|
|
|
|
clutter_main ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
G_MODULE_EXPORT const char *
|
|
test_cogl_tex_polygon_describe (void)
|
|
{
|
|
return "Texture polygon primitive.";
|
|
}
|