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pp-super-aa.c
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pp-super-aa.c
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/* pp-super-aa.c */
#include "pp-super-aa.h"
G_DEFINE_TYPE (PPSuperAA, pp_super_aa, MX_TYPE_OFFSCREEN)
#define SUPER_AA_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), PP_TYPE_SUPER_AA, PPSuperAAPrivate))
struct _PPSuperAAPrivate
{
gfloat x_res;
gfloat y_res;
};
enum
{
PROP_0,
PROP_X_RES,
PROP_Y_RES
};
static void
pp_super_aa_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PPSuperAA *self = PP_SUPER_AA (object);
switch (property_id)
{
case PROP_X_RES:
g_value_set_float (value, self->priv->x_res);
break;
case PROP_Y_RES:
g_value_set_float (value, self->priv->y_res);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
pp_super_aa_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PPSuperAA *self = PP_SUPER_AA (object);
switch (property_id)
{
case PROP_X_RES:
self->priv->x_res = g_value_get_float (value);
clutter_actor_queue_redraw (CLUTTER_ACTOR (object));
break;
case PROP_Y_RES:
self->priv->y_res = g_value_get_float (value);
clutter_actor_queue_redraw (CLUTTER_ACTOR (object));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
pp_super_aa_dispose (GObject *object)
{
G_OBJECT_CLASS (pp_super_aa_parent_class)->dispose (object);
}
static void
pp_super_aa_finalize (GObject *object)
{
G_OBJECT_CLASS (pp_super_aa_parent_class)->finalize (object);
}
static void
pp_super_aa_paint (ClutterActor *actor)
{
CoglHandle texture;
gfloat width, height;
PPSuperAAPrivate *priv = PP_SUPER_AA (actor)->priv;
clutter_actor_get_size (actor, &width, &height);
texture = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (actor));
if (!texture ||
(cogl_texture_get_width (texture) != (guint)(width * priv->x_res)) ||
(cogl_texture_get_height (texture) != (guint)(height * priv->y_res)))
{
texture = cogl_texture_new_with_size ((guint)(width * priv->x_res),
(guint)(height * priv->y_res),
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_RGBA_8888_PRE);
clutter_texture_set_cogl_texture (CLUTTER_TEXTURE (actor), texture);
cogl_handle_unref (texture);
}
CLUTTER_ACTOR_CLASS (pp_super_aa_parent_class)->paint (actor);
}
static void
pp_super_aa_paint_child (MxOffscreen *offscreen)
{
PPSuperAAPrivate *priv = PP_SUPER_AA (offscreen)->priv;
cogl_scale (priv->x_res, priv->y_res, 1.0);
MX_OFFSCREEN_CLASS (pp_super_aa_parent_class)->paint_child (offscreen);
}
static void
pp_super_aa_class_init (PPSuperAAClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
MxOffscreenClass *offscreen_class = MX_OFFSCREEN_CLASS (klass);
g_type_class_add_private (klass, sizeof (PPSuperAAPrivate));
object_class->get_property = pp_super_aa_get_property;
object_class->set_property = pp_super_aa_set_property;
object_class->dispose = pp_super_aa_dispose;
object_class->finalize = pp_super_aa_finalize;
actor_class->paint = pp_super_aa_paint;
offscreen_class->paint_child = pp_super_aa_paint_child;
}
static void
pp_super_aa_init (PPSuperAA *self)
{
self->priv = SUPER_AA_PRIVATE (self);
clutter_texture_set_sync_size (CLUTTER_TEXTURE (self), FALSE);
}
ClutterActor *
pp_super_aa_new (void)
{
return g_object_new (PP_TYPE_SUPER_AA, NULL);
}
void
pp_super_aa_set_resolution (PPSuperAA *aa, gfloat x_res, gfloat y_res)
{
aa->priv->x_res = x_res;
aa->priv->y_res = y_res;
clutter_actor_queue_redraw (CLUTTER_ACTOR (aa));
}
void
pp_super_aa_get_resolution (PPSuperAA *aa, gfloat *x_res, gfloat *y_res)
{
if (x_res)
*x_res = aa->priv->x_res;
if (y_res)
*y_res = aa->priv->y_res;
}