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e73946f0bf
It doesn't make sense to GLSL shaders without uniforms. https://bugzilla.gnome.org/show_bug.cgi?id=682536
101 lines
3.8 KiB
C
101 lines
3.8 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* meta-background-actor.h: Actor for painting the root window background
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*
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* Copyright 2010 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_BACKGROUND_ACTOR_H
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#define META_BACKGROUND_ACTOR_H
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#include <clutter/clutter.h>
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#include <meta/screen.h>
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/**
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* MetaBackgroundActor:
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*
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* This class handles tracking and painting the root window background.
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* By integrating with #MetaWindowGroup we can avoid painting parts of
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* the background that are obscured by other windows.
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*/
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#define META_TYPE_BACKGROUND_ACTOR (meta_background_actor_get_type ())
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#define META_BACKGROUND_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActor))
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#define META_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
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#define META_IS_BACKGROUND_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BACKGROUND_ACTOR))
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#define META_IS_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BACKGROUND_ACTOR))
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#define META_BACKGROUND_ACTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
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typedef struct _MetaBackgroundActor MetaBackgroundActor;
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typedef struct _MetaBackgroundActorClass MetaBackgroundActorClass;
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typedef struct _MetaBackgroundActorPrivate MetaBackgroundActorPrivate;
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struct _MetaBackgroundActorClass
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{
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ClutterActorClass parent_class;
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};
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struct _MetaBackgroundActor
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{
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ClutterActor parent;
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MetaBackgroundActorPrivate *priv;
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};
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GType meta_background_actor_get_type (void);
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ClutterActor *meta_background_actor_new_for_screen (MetaScreen *screen);
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/**
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* MetaSnippetHook:
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* Temporary hack to work around Cogl not exporting CoglSnippetHook in
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* the 1.0 API. Don't use.
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*/
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typedef enum {
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/* Per pipeline vertex hooks */
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META_SNIPPET_HOOK_VERTEX = 0,
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META_SNIPPET_HOOK_VERTEX_TRANSFORM,
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/* Per pipeline fragment hooks */
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META_SNIPPET_HOOK_FRAGMENT = 2048,
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/* Per layer vertex hooks */
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META_SNIPPET_HOOK_TEXTURE_COORD_TRANSFORM = 4096,
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/* Per layer fragment hooks */
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META_SNIPPET_HOOK_LAYER_FRAGMENT = 6144,
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META_SNIPPET_HOOK_TEXTURE_LOOKUP
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} MetaSnippetHook;
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void meta_background_actor_add_glsl_snippet (MetaBackgroundActor *actor,
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MetaSnippetHook hook,
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const char *declarations,
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const char *code,
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gboolean is_replace);
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void meta_background_actor_set_uniform_float (MetaBackgroundActor *actor,
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const char *uniform_name,
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int n_components,
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int count,
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const float *uniform,
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int uniform_length);
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#endif /* META_BACKGROUND_ACTOR_H */
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