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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* meta-background-actor.h: Actor for painting the root window background
*
* Copyright 2010 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef META_BACKGROUND_ACTOR_H
#define META_BACKGROUND_ACTOR_H
#include <clutter/clutter.h>
#include <meta/screen.h>
/**
* MetaBackgroundActor:
*
* This class handles tracking and painting the root window background.
* By integrating with #MetaWindowGroup we can avoid painting parts of
* the background that are obscured by other windows.
*/
#define META_TYPE_BACKGROUND_ACTOR (meta_background_actor_get_type ())
#define META_BACKGROUND_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActor))
#define META_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
#define META_IS_BACKGROUND_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BACKGROUND_ACTOR))
#define META_IS_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BACKGROUND_ACTOR))
#define META_BACKGROUND_ACTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
typedef struct _MetaBackgroundActor MetaBackgroundActor;
typedef struct _MetaBackgroundActorClass MetaBackgroundActorClass;
typedef struct _MetaBackgroundActorPrivate MetaBackgroundActorPrivate;
struct _MetaBackgroundActorClass
{
ClutterActorClass parent_class;
};
struct _MetaBackgroundActor
{
ClutterActor parent;
MetaBackgroundActorPrivate *priv;
};
GType meta_background_actor_get_type (void);
ClutterActor *meta_background_actor_new (MetaScreen *screen,
GSettings *settings);
/**
* MetaSnippetHook:
* Temporary hack to work around Cogl not exporting CoglSnippetHook in
* the 1.0 API. Don't use.
*/
typedef enum {
/* Per pipeline vertex hooks */
META_SNIPPET_HOOK_VERTEX = 0,
META_SNIPPET_HOOK_VERTEX_TRANSFORM,
/* Per pipeline fragment hooks */
META_SNIPPET_HOOK_FRAGMENT = 2048,
/* Per layer vertex hooks */
META_SNIPPET_HOOK_TEXTURE_COORD_TRANSFORM = 4096,
/* Per layer fragment hooks */
META_SNIPPET_HOOK_LAYER_FRAGMENT = 6144,
META_SNIPPET_HOOK_TEXTURE_LOOKUP
} MetaSnippetHook;
void meta_background_actor_add_glsl_snippet (MetaBackgroundActor *actor,
MetaSnippetHook hook,
const char *declarations,
const char *code,
gboolean is_replace);
void meta_background_actor_set_uniform_float (MetaBackgroundActor *actor,
const char *uniform_name,
int n_components,
int count,
const float *uniform,
int uniform_length);
#endif /* META_BACKGROUND_ACTOR_H */
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