15d7a86621
The only backend that tried to implement offscreen stages was the GLX backend and even this has apparently be broken for some time without anyone noticing. The property still remains and since the property already clearly states that it may not work I don't expect anyone to notice. This simplifies quite a bit of the GLX code which is very desireable from the POV that we want to start migrating window system code down to Cogl and the simpler the code is the more straight forward this work will be. In the future when Cogl has a nicely designed API for framebuffer objects then re-implementing offscreen stages cleanly for *all* backends should be quite straightforward.
113 lines
5.4 KiB
C
113 lines
5.4 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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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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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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#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_BACKEND_H__
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#define __CLUTTER_BACKEND_H__
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#include <cairo.h>
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#include <glib-object.h>
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#include <pango/pango.h>
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#include <clutter/clutter-actor.h>
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#include <clutter/clutter-event.h>
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#include <clutter/clutter-feature.h>
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#include <clutter/clutter-stage.h>
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#include <clutter/clutter-stage-window.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BACKEND (clutter_backend_get_type ())
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#define CLUTTER_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BACKEND, ClutterBackend))
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#define CLUTTER_IS_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BACKEND))
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#define CLUTTER_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
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#define CLUTTER_IS_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND))
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#define CLUTTER_BACKEND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
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typedef struct _ClutterBackend ClutterBackend;
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typedef struct _ClutterBackendPrivate ClutterBackendPrivate;
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typedef struct _ClutterBackendClass ClutterBackendClass;
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struct _ClutterBackend
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{
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/*< private >*/
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GObject parent_instance;
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ClutterBackendPrivate *priv;
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};
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struct _ClutterBackendClass
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{
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/*< private >*/
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GObjectClass parent_class;
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/* vfuncs */
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gboolean (* pre_parse) (ClutterBackend *backend,
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GError **error);
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gboolean (* post_parse) (ClutterBackend *backend,
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GError **error);
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ClutterStageWindow *(* create_stage) (ClutterBackend *backend,
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ClutterStage *wrapper,
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GError **error);
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void (* init_events) (ClutterBackend *backend);
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void (* init_features) (ClutterBackend *backend);
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void (* add_options) (ClutterBackend *backend,
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GOptionGroup *group);
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ClutterFeatureFlags (* get_features) (ClutterBackend *backend);
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void (* redraw) (ClutterBackend *backend,
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ClutterStage *stage);
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gboolean (* create_context) (ClutterBackend *backend,
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GError **error);
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void (* ensure_context) (ClutterBackend *backend,
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ClutterStage *stage);
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/* signals */
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void (* resolution_changed) (ClutterBackend *backend);
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void (* font_changed) (ClutterBackend *backend);
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};
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GType clutter_backend_get_type (void) G_GNUC_CONST;
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ClutterBackend *clutter_get_default_backend (void);
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void clutter_backend_set_resolution (ClutterBackend *backend,
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gdouble dpi);
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gdouble clutter_backend_get_resolution (ClutterBackend *backend);
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void clutter_backend_set_double_click_time (ClutterBackend *backend,
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guint msec);
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guint clutter_backend_get_double_click_time (ClutterBackend *backend);
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void clutter_backend_set_double_click_distance (ClutterBackend *backend,
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guint distance);
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guint clutter_backend_get_double_click_distance (ClutterBackend *backend);
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void clutter_backend_set_font_options (ClutterBackend *backend,
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const cairo_font_options_t *options);
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const cairo_font_options_t *clutter_backend_get_font_options (ClutterBackend *backend);
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void clutter_backend_set_font_name (ClutterBackend *backend,
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const gchar *font_name);
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G_CONST_RETURN gchar * clutter_backend_get_font_name (ClutterBackend *backend);
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G_END_DECLS
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#endif /* __CLUTTER_BACKEND_H__ */
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