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Sometimes a subclass of ClutterOffscreenEffect wants to paint with a completely custom material. In that case it is awkward to modify the material returned owned by ClutterOffscreenEffect so it makes more sense to just get the texture and manage its own material. Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
111 lines
4.2 KiB
C
111 lines
4.2 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_OFFSCREEN_EFFECT_H__
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#define __CLUTTER_OFFSCREEN_EFFECT_H__
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#include <cogl/cogl.h>
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#include <clutter/clutter-effect.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_OFFSCREEN_EFFECT (clutter_offscreen_effect_get_type ())
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#define CLUTTER_OFFSCREEN_EFFECT(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), CLUTTER_TYPE_OFFSCREEN_EFFECT, ClutterOffscreenEffect))
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#define CLUTTER_IS_OFFSCREEN_EFFECT(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), CLUTTER_TYPE_OFFSCREEN_EFFECT))
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#define CLUTTER_OFFSCREEN_EFFECT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), CLUTTER_TYPE_OFFSCREEN_EFFECT, ClutterOffscreenEffectClass))
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#define CLUTTER_IS_OFFSCREEN_EFFECT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), CLUTTER_TYPE_OFFSCREEN_EFFECT))
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#define CLUTTER_OFFSCREEN_EFFECT_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), CLUTTER_TYPE_OFFSCREEN_EFFECT, ClutterOffscreenEffectClass))
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typedef struct _ClutterOffscreenEffect ClutterOffscreenEffect;
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typedef struct _ClutterOffscreenEffectPrivate ClutterOffscreenEffectPrivate;
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typedef struct _ClutterOffscreenEffectClass ClutterOffscreenEffectClass;
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/**
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* ClutterOffscreenEffect:
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*
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* The #ClutterOffscreenEffect structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 1.4
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*/
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struct _ClutterOffscreenEffect
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{
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/*< private >*/
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ClutterEffect parent_instance;
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ClutterOffscreenEffectPrivate *priv;
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};
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/**
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* ClutterOffscreenEffectClass:
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* @create_texture: virtual function
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* @paint_target: virtual function
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*
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* The #ClutterOffscreenEffectClass structure contains only private data
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*
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* Since: 1.4
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*/
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struct _ClutterOffscreenEffectClass
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{
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/*< private >*/
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ClutterEffectClass parent_class;
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/*< public >*/
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CoglHandle (* create_texture) (ClutterOffscreenEffect *effect,
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gfloat width,
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gfloat height);
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void (* paint_target) (ClutterOffscreenEffect *effect);
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/*< private >*/
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void (* _clutter_offscreen1) (void);
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void (* _clutter_offscreen2) (void);
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void (* _clutter_offscreen3) (void);
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void (* _clutter_offscreen4) (void);
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void (* _clutter_offscreen5) (void);
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void (* _clutter_offscreen6) (void);
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void (* _clutter_offscreen7) (void);
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};
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GType clutter_offscreen_effect_get_type (void) G_GNUC_CONST;
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CoglMaterial * clutter_offscreen_effect_get_target (ClutterOffscreenEffect *effect);
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CoglHandle clutter_offscreen_effect_get_texture (ClutterOffscreenEffect *effect);
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void clutter_offscreen_effect_paint_target (ClutterOffscreenEffect *effect);
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CoglHandle clutter_offscreen_effect_create_texture (ClutterOffscreenEffect *effect,
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gfloat width,
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gfloat height);
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gboolean clutter_offscreen_effect_get_target_size (ClutterOffscreenEffect *effect,
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gfloat *width,
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gfloat *height);
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G_END_DECLS
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#endif /* __CLUTTER_OFFSCREEN_EFFECT_H__ */
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