0e4c6d0a87
Acquiring the Clutter lock to mark critical sections is not portable, and not recommended to implement threaded applications with Clutter. The recommended pattern is to use worker threads, and schedule UI updates inside idle or timeout handlers within the main loop. We should enforce this pattern by deprecating the threads_enter()/leave() functions. For compatibility concerns, we need internal API to acquire the main lock during frame processing dispatch. https://bugzilla.gnome.org/show_bug.cgi?id=679450
145 lines
6.5 KiB
C
145 lines
6.5 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_MAIN_H__
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#define __CLUTTER_MAIN_H__
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#include <clutter/clutter-actor.h>
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#include <clutter/clutter-stage.h>
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#include <pango/pango.h>
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G_BEGIN_DECLS
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/**
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* CLUTTER_INIT_ERROR:
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*
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* #GError domain for #ClutterInitError
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*/
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#define CLUTTER_INIT_ERROR (clutter_init_error_quark ())
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/**
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* ClutterInitError:
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* @CLUTTER_INIT_SUCCESS: Initialisation successful
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* @CLUTTER_INIT_ERROR_UNKNOWN: Unknown error
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* @CLUTTER_INIT_ERROR_THREADS: Thread initialisation failed
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* @CLUTTER_INIT_ERROR_BACKEND: Backend initialisation failed
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* @CLUTTER_INIT_ERROR_INTERNAL: Internal error
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*
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* Error conditions returned by clutter_init() and clutter_init_with_args().
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*
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* Since: 0.2
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*/
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typedef enum {
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CLUTTER_INIT_SUCCESS = 1,
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CLUTTER_INIT_ERROR_UNKNOWN = 0,
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CLUTTER_INIT_ERROR_THREADS = -1,
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CLUTTER_INIT_ERROR_BACKEND = -2,
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CLUTTER_INIT_ERROR_INTERNAL = -3
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} ClutterInitError;
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GQuark clutter_init_error_quark (void);
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/**
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* CLUTTER_PRIORITY_REDRAW:
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*
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* Priority of the redraws. This is chosen to be lower than the GTK+
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* redraw and resize priorities, because in application with both
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* GTK+ and Clutter it's more likely that the Clutter part will be
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* continually animating (and thus able to starve GTK+) than
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* vice-versa.
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*
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* Since: 0.8
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*/
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#define CLUTTER_PRIORITY_REDRAW (G_PRIORITY_HIGH_IDLE + 50)
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/* Initialisation */
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void clutter_base_init (void);
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ClutterInitError clutter_init (int *argc,
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char ***argv) G_GNUC_WARN_UNUSED_RESULT;
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ClutterInitError clutter_init_with_args (int *argc,
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char ***argv,
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const char *parameter_string,
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GOptionEntry *entries,
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const char *translation_domain,
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GError **error) G_GNUC_WARN_UNUSED_RESULT;
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GOptionGroup * clutter_get_option_group (void);
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GOptionGroup * clutter_get_option_group_without_init (void);
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/* Mainloop */
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void clutter_main (void);
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void clutter_main_quit (void);
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gint clutter_main_level (void);
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void clutter_do_event (ClutterEvent *event);
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/* Debug utility functions */
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gboolean clutter_get_accessibility_enabled (void);
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/* Threading functions */
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void clutter_threads_set_lock_functions (GCallback enter_fn,
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GCallback leave_fn);
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guint clutter_threads_add_idle (GSourceFunc func,
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gpointer data);
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guint clutter_threads_add_idle_full (gint priority,
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GSourceFunc func,
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gpointer data,
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GDestroyNotify notify);
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guint clutter_threads_add_timeout (guint interval,
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GSourceFunc func,
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gpointer data);
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guint clutter_threads_add_timeout_full (gint priority,
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guint interval,
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GSourceFunc func,
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gpointer data,
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GDestroyNotify notify);
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guint clutter_threads_add_repaint_func (GSourceFunc func,
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gpointer data,
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GDestroyNotify notify);
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CLUTTER_AVAILABLE_IN_1_10
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guint clutter_threads_add_repaint_func_full (ClutterRepaintFlags flags,
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GSourceFunc func,
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gpointer data,
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GDestroyNotify notify);
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void clutter_threads_remove_repaint_func (guint handle_id);
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void clutter_grab_pointer (ClutterActor *actor);
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void clutter_ungrab_pointer (void);
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ClutterActor * clutter_get_pointer_grab (void);
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void clutter_grab_keyboard (ClutterActor *actor);
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void clutter_ungrab_keyboard (void);
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ClutterActor * clutter_get_keyboard_grab (void);
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PangoFontMap * clutter_get_font_map (void);
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ClutterTextDirection clutter_get_default_text_direction (void);
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guint clutter_get_default_frame_rate (void);
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G_END_DECLS
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#endif /* _CLUTTER_MAIN_H__ */
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