3892 lines
108 KiB
C
3892 lines
108 KiB
C
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* Authored By Matthew Allum <mallum@openedhand.com>
|
|
*
|
|
* Copyright (C) 2006 OpenedHand
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:clutter-main
|
|
* @short_description: Various 'global' Clutter functions.
|
|
*
|
|
* Functions to retrieve various global Clutter resources and other utility
|
|
* functions for mainloops, events and threads
|
|
*
|
|
* ## The Clutter Threading Model
|
|
*
|
|
* Clutter is *thread-aware*: all operations performed by Clutter are assumed
|
|
* to be under the Big Clutter Lock, which is created when the threading is
|
|
* initialized through clutter_init(), and entered when calling user-related
|
|
* code during event handling and actor drawing.
|
|
*
|
|
* The only safe and portable way to use the Clutter API in a multi-threaded
|
|
* environment is to only access the Clutter API from a thread that did called
|
|
* clutter_init() and clutter_main().
|
|
*
|
|
* The common pattern for using threads with Clutter is to use worker threads
|
|
* to perform blocking operations and then install idle or timeout sources with
|
|
* the result when the thread finishes, and update the UI from those callbacks.
|
|
*
|
|
* For a working example of how to use a worker thread to update the UI, see
|
|
* [threads.c](https://git.gnome.org/browse/clutter/tree/examples/threads.c?h=clutter-1.18)
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <glib/gi18n-lib.h>
|
|
#include <locale.h>
|
|
|
|
#include "clutter-actor-private.h"
|
|
#include "clutter-backend-private.h"
|
|
#include "clutter-config.h"
|
|
#include "clutter-debug.h"
|
|
#include "clutter-device-manager-private.h"
|
|
#include "clutter-event-private.h"
|
|
#include "clutter-feature.h"
|
|
#include "clutter-main.h"
|
|
#include "clutter-master-clock.h"
|
|
#include "clutter-private.h"
|
|
#include "clutter-profile.h"
|
|
#include "clutter-settings-private.h"
|
|
#include "clutter-stage-manager.h"
|
|
#include "clutter-stage-private.h"
|
|
#include "clutter-version.h" /* For flavour define */
|
|
|
|
#ifdef CLUTTER_WINDOWING_OSX
|
|
#include "osx/clutter-backend-osx.h"
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_WIN32
|
|
#include "win32/clutter-backend-win32.h"
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_GDK
|
|
#include "gdk/clutter-backend-gdk.h"
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_X11
|
|
#include "x11/clutter-backend-x11.h"
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_EGL
|
|
#include "egl/clutter-backend-eglnative.h"
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_WAYLAND
|
|
#include "wayland/clutter-backend-wayland.h"
|
|
#endif
|
|
|
|
#include <cogl/cogl.h>
|
|
#include <cogl-pango/cogl-pango.h>
|
|
|
|
#include "cally.h" /* For accessibility support */
|
|
|
|
/* main context */
|
|
static ClutterMainContext *ClutterCntx = NULL;
|
|
G_LOCK_DEFINE_STATIC (ClutterCntx);
|
|
|
|
/* main lock and locking/unlocking functions */
|
|
static GMutex clutter_threads_mutex;
|
|
static GCallback clutter_threads_lock = NULL;
|
|
static GCallback clutter_threads_unlock = NULL;
|
|
|
|
/* command line options */
|
|
static gboolean clutter_is_initialized = FALSE;
|
|
static gboolean clutter_show_fps = FALSE;
|
|
static gboolean clutter_fatal_warnings = FALSE;
|
|
static gboolean clutter_disable_mipmap_text = FALSE;
|
|
static gboolean clutter_use_fuzzy_picking = FALSE;
|
|
static gboolean clutter_enable_accessibility = TRUE;
|
|
static gboolean clutter_sync_to_vblank = TRUE;
|
|
|
|
static guint clutter_default_fps = 60;
|
|
|
|
static ClutterTextDirection clutter_text_direction = CLUTTER_TEXT_DIRECTION_LTR;
|
|
|
|
static guint clutter_main_loop_level = 0;
|
|
static GSList *main_loops = NULL;
|
|
|
|
/* debug flags */
|
|
guint clutter_debug_flags = 0;
|
|
guint clutter_paint_debug_flags = 0;
|
|
guint clutter_pick_debug_flags = 0;
|
|
|
|
/* profile flags */
|
|
guint clutter_profile_flags = 0;
|
|
|
|
const guint clutter_major_version = CLUTTER_MAJOR_VERSION;
|
|
const guint clutter_minor_version = CLUTTER_MINOR_VERSION;
|
|
const guint clutter_micro_version = CLUTTER_MICRO_VERSION;
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
static const GDebugKey clutter_debug_keys[] = {
|
|
{ "misc", CLUTTER_DEBUG_MISC },
|
|
{ "actor", CLUTTER_DEBUG_ACTOR },
|
|
{ "texture", CLUTTER_DEBUG_TEXTURE },
|
|
{ "event", CLUTTER_DEBUG_EVENT },
|
|
{ "paint", CLUTTER_DEBUG_PAINT },
|
|
{ "pick", CLUTTER_DEBUG_PICK },
|
|
{ "pango", CLUTTER_DEBUG_PANGO },
|
|
{ "backend", CLUTTER_DEBUG_BACKEND },
|
|
{ "scheduler", CLUTTER_DEBUG_SCHEDULER },
|
|
{ "script", CLUTTER_DEBUG_SCRIPT },
|
|
{ "shader", CLUTTER_DEBUG_SHADER },
|
|
{ "animation", CLUTTER_DEBUG_ANIMATION },
|
|
{ "layout", CLUTTER_DEBUG_LAYOUT },
|
|
{ "clipping", CLUTTER_DEBUG_CLIPPING },
|
|
{ "oob-transforms", CLUTTER_DEBUG_OOB_TRANSFORMS },
|
|
};
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
static const GDebugKey clutter_pick_debug_keys[] = {
|
|
{ "nop-picking", CLUTTER_DEBUG_NOP_PICKING },
|
|
{ "dump-pick-buffers", CLUTTER_DEBUG_DUMP_PICK_BUFFERS },
|
|
};
|
|
|
|
static const GDebugKey clutter_paint_debug_keys[] = {
|
|
{ "disable-swap-events", CLUTTER_DEBUG_DISABLE_SWAP_EVENTS },
|
|
{ "disable-clipped-redraws", CLUTTER_DEBUG_DISABLE_CLIPPED_REDRAWS },
|
|
{ "redraws", CLUTTER_DEBUG_REDRAWS },
|
|
{ "paint-volumes", CLUTTER_DEBUG_PAINT_VOLUMES },
|
|
{ "disable-culling", CLUTTER_DEBUG_DISABLE_CULLING },
|
|
{ "disable-offscreen-redirect", CLUTTER_DEBUG_DISABLE_OFFSCREEN_REDIRECT },
|
|
{ "continuous-redraw", CLUTTER_DEBUG_CONTINUOUS_REDRAW },
|
|
{ "paint-deform-tiles", CLUTTER_DEBUG_PAINT_DEFORM_TILES },
|
|
};
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
static const GDebugKey clutter_profile_keys[] = {
|
|
{"picking-only", CLUTTER_PROFILE_PICKING_ONLY },
|
|
{"disable-report", CLUTTER_PROFILE_DISABLE_REPORT }
|
|
};
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
static void
|
|
clutter_threads_impl_lock (void)
|
|
{
|
|
g_mutex_lock (&clutter_threads_mutex);
|
|
}
|
|
|
|
static void
|
|
clutter_threads_impl_unlock (void)
|
|
{
|
|
/* we need to trylock here, in case the lock hasn't been acquired; on
|
|
* various systems trying to release a mutex that hasn't been acquired
|
|
* will cause a run-time error. trylock() will either fail, in which
|
|
* case we can release the lock we own; or it will succeeds, in which
|
|
* case we need to release the lock we just acquired. so we ignore the
|
|
* returned value.
|
|
*
|
|
* see: https://bugs.gnome.org/679439
|
|
*/
|
|
g_mutex_trylock (&clutter_threads_mutex);
|
|
g_mutex_unlock (&clutter_threads_mutex);
|
|
}
|
|
|
|
static inline void
|
|
clutter_threads_init_default (void)
|
|
{
|
|
g_mutex_init (&clutter_threads_mutex);
|
|
|
|
#ifndef CLUTTER_WINDOWING_WIN32
|
|
/* we don't need nor want locking functions on Windows.here
|
|
* as Windows GUI system assumes multithreadedness
|
|
* see bug: https://bugzilla.gnome.org/show_bug.cgi?id=662071
|
|
*/
|
|
if (clutter_threads_lock == NULL)
|
|
clutter_threads_lock = clutter_threads_impl_lock;
|
|
|
|
if (clutter_threads_unlock == NULL)
|
|
clutter_threads_unlock = clutter_threads_impl_unlock;
|
|
#endif /* CLUTTER_WINDOWING_WIN32 */
|
|
}
|
|
|
|
#define ENVIRONMENT_GROUP "Environment"
|
|
#define DEBUG_GROUP "Debug"
|
|
|
|
static void
|
|
clutter_config_read_from_key_file (GKeyFile *keyfile)
|
|
{
|
|
GError *key_error = NULL;
|
|
gboolean bool_value;
|
|
gint int_value;
|
|
gchar *str_value;
|
|
|
|
if (!g_key_file_has_group (keyfile, ENVIRONMENT_GROUP))
|
|
return;
|
|
|
|
bool_value =
|
|
g_key_file_get_boolean (keyfile, ENVIRONMENT_GROUP,
|
|
"ShowFps",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
clutter_show_fps = bool_value;
|
|
|
|
bool_value =
|
|
g_key_file_get_boolean (keyfile, ENVIRONMENT_GROUP,
|
|
"DisableMipmappedText",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
clutter_disable_mipmap_text = bool_value;
|
|
|
|
bool_value =
|
|
g_key_file_get_boolean (keyfile, ENVIRONMENT_GROUP,
|
|
"UseFuzzyPicking",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
clutter_use_fuzzy_picking = bool_value;
|
|
|
|
bool_value =
|
|
g_key_file_get_boolean (keyfile, ENVIRONMENT_GROUP,
|
|
"EnableAccessibility",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
clutter_enable_accessibility = bool_value;
|
|
|
|
bool_value =
|
|
g_key_file_get_boolean (keyfile, ENVIRONMENT_GROUP,
|
|
"SyncToVblank",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
clutter_sync_to_vblank = bool_value;
|
|
|
|
int_value =
|
|
g_key_file_get_integer (keyfile, ENVIRONMENT_GROUP,
|
|
"DefaultFps",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
clutter_default_fps = int_value;
|
|
|
|
str_value =
|
|
g_key_file_get_string (keyfile, ENVIRONMENT_GROUP,
|
|
"TextDirection",
|
|
&key_error);
|
|
|
|
if (key_error != NULL)
|
|
g_clear_error (&key_error);
|
|
else
|
|
{
|
|
if (g_strcmp0 (str_value, "rtl") == 0)
|
|
clutter_text_direction = CLUTTER_TEXT_DIRECTION_RTL;
|
|
else
|
|
clutter_text_direction = CLUTTER_TEXT_DIRECTION_LTR;
|
|
}
|
|
|
|
g_free (str_value);
|
|
}
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
static void
|
|
clutter_debug_read_from_key_file (GKeyFile *keyfile)
|
|
{
|
|
GError *key_error = NULL;
|
|
gchar *value;
|
|
|
|
if (!g_key_file_has_group (keyfile, DEBUG_GROUP))
|
|
return;
|
|
|
|
value = g_key_file_get_value (keyfile, DEBUG_GROUP,
|
|
"Debug",
|
|
&key_error);
|
|
if (key_error == NULL)
|
|
{
|
|
clutter_debug_flags |=
|
|
g_parse_debug_string (value,
|
|
clutter_debug_keys,
|
|
G_N_ELEMENTS (clutter_debug_keys));
|
|
}
|
|
else
|
|
g_clear_error (&key_error);
|
|
|
|
g_free (value);
|
|
|
|
value = g_key_file_get_value (keyfile, DEBUG_GROUP,
|
|
"PaintDebug",
|
|
&key_error);
|
|
if (key_error == NULL)
|
|
{
|
|
clutter_paint_debug_flags |=
|
|
g_parse_debug_string (value,
|
|
clutter_paint_debug_keys,
|
|
G_N_ELEMENTS (clutter_paint_debug_keys));
|
|
}
|
|
else
|
|
g_clear_error (&key_error);
|
|
|
|
g_free (value);
|
|
|
|
value = g_key_file_get_value (keyfile, DEBUG_GROUP,
|
|
"PickDebug",
|
|
&key_error);
|
|
if (key_error == NULL)
|
|
{
|
|
clutter_pick_debug_flags |=
|
|
g_parse_debug_string (value,
|
|
clutter_pick_debug_keys,
|
|
G_N_ELEMENTS (clutter_pick_debug_keys));
|
|
}
|
|
else
|
|
g_clear_error (&key_error);
|
|
|
|
g_free (value);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
clutter_config_read_from_file (const gchar *config_path)
|
|
{
|
|
ClutterSettings *settings = clutter_settings_get_default ();
|
|
GKeyFile *key_file = g_key_file_new ();
|
|
GError *error = NULL;
|
|
|
|
g_key_file_load_from_file (key_file, config_path, G_KEY_FILE_NONE, &error);
|
|
if (error == NULL)
|
|
{
|
|
CLUTTER_NOTE (MISC, "Reading configuration from '%s'", config_path);
|
|
|
|
clutter_config_read_from_key_file (key_file);
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
clutter_debug_read_from_key_file (key_file);
|
|
#endif
|
|
_clutter_settings_read_from_key_file (settings, key_file);
|
|
}
|
|
else
|
|
{
|
|
g_warning ("Unable to read configuration settings from '%s': %s",
|
|
config_path,
|
|
error->message);
|
|
g_error_free (error);
|
|
}
|
|
|
|
g_key_file_free (key_file);
|
|
}
|
|
|
|
static void
|
|
clutter_config_read (void)
|
|
{
|
|
gchar *config_path;
|
|
|
|
config_path = g_build_filename (CLUTTER_SYSCONFDIR,
|
|
"clutter-1.0",
|
|
"settings.ini",
|
|
NULL);
|
|
if (g_file_test (config_path, G_FILE_TEST_EXISTS))
|
|
clutter_config_read_from_file (config_path);
|
|
|
|
g_free (config_path);
|
|
|
|
config_path = g_build_filename (g_get_user_config_dir (),
|
|
"clutter-1.0",
|
|
"settings.ini",
|
|
NULL);
|
|
if (g_file_test (config_path, G_FILE_TEST_EXISTS))
|
|
clutter_config_read_from_file (config_path);
|
|
|
|
g_free (config_path);
|
|
}
|
|
|
|
/**
|
|
* clutter_get_show_fps:
|
|
*
|
|
* Returns whether Clutter should print out the frames per second on the
|
|
* console. You can enable this setting either using the
|
|
* <literal>CLUTTER_SHOW_FPS</literal> environment variable or passing
|
|
* the <literal>--clutter-show-fps</literal> command line argument. *
|
|
*
|
|
* Return value: %TRUE if Clutter should show the FPS.
|
|
*
|
|
* Since: 0.4
|
|
*
|
|
* Deprecated: 1.10: This function does not do anything. Use the environment
|
|
* variable or the configuration file to determine whether Clutter should
|
|
* print out the FPS counter on the console.
|
|
*/
|
|
gboolean
|
|
clutter_get_show_fps (void)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
gboolean
|
|
_clutter_context_get_show_fps (void)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
return context->show_fps;
|
|
}
|
|
|
|
/**
|
|
* clutter_get_accessibility_enabled:
|
|
*
|
|
* Returns whether Clutter has accessibility support enabled. As
|
|
* least, a value of TRUE means that there are a proper AtkUtil
|
|
* implementation available
|
|
*
|
|
* Return value: %TRUE if Clutter has accessibility support enabled
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
gboolean
|
|
clutter_get_accessibility_enabled (void)
|
|
{
|
|
return cally_get_cally_initialized ();
|
|
}
|
|
|
|
/**
|
|
* clutter_disable_accessibility:
|
|
*
|
|
* Disable loading the accessibility support. It has the same effect
|
|
* as setting the environment variable
|
|
* CLUTTER_DISABLE_ACCESSIBILITY. For the same reason, this method
|
|
* should be called before clutter_init().
|
|
*
|
|
* Since: 1.14
|
|
*/
|
|
void
|
|
clutter_disable_accessibility (void)
|
|
{
|
|
if (clutter_is_initialized)
|
|
{
|
|
g_warning ("clutter_disable_accessibility() can only be called before "
|
|
"initializing Clutter.");
|
|
return;
|
|
}
|
|
|
|
clutter_enable_accessibility = FALSE;
|
|
}
|
|
|
|
/**
|
|
* clutter_redraw:
|
|
*
|
|
* Forces a redraw of the entire stage. Applications should never use this
|
|
* function, but queue a redraw using clutter_actor_queue_redraw().
|
|
*
|
|
* This function should only be used by libraries integrating Clutter from
|
|
* within another toolkit.
|
|
*
|
|
* Deprecated: 1.10: Use clutter_stage_ensure_redraw() instead.
|
|
*/
|
|
void
|
|
clutter_redraw (ClutterStage *stage)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_STAGE (stage));
|
|
|
|
clutter_stage_ensure_redraw (stage);
|
|
}
|
|
|
|
/**
|
|
* clutter_set_motion_events_enabled:
|
|
* @enable: %TRUE to enable per-actor motion events
|
|
*
|
|
* Sets whether per-actor motion events should be enabled or not on
|
|
* all #ClutterStage<!-- -->s managed by Clutter.
|
|
*
|
|
* If @enable is %FALSE the following events will not work:
|
|
*
|
|
* - ClutterActor::motion-event, except on the #ClutterStage
|
|
* - ClutterActor::enter-event
|
|
* - ClutterActor::leave-event
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.8: Use clutter_stage_set_motion_events_enabled() instead.
|
|
*/
|
|
void
|
|
clutter_set_motion_events_enabled (gboolean enable)
|
|
{
|
|
ClutterStageManager *stage_manager;
|
|
ClutterMainContext *context;
|
|
const GSList *l;
|
|
|
|
enable = !!enable;
|
|
|
|
context = _clutter_context_get_default ();
|
|
if (context->motion_events_per_actor == enable)
|
|
return;
|
|
|
|
/* store the flag for later query and for newly created stages */
|
|
context->motion_events_per_actor = enable;
|
|
|
|
/* propagate the change to all stages */
|
|
stage_manager = clutter_stage_manager_get_default ();
|
|
|
|
for (l = clutter_stage_manager_peek_stages (stage_manager);
|
|
l != NULL;
|
|
l = l->next)
|
|
{
|
|
clutter_stage_set_motion_events_enabled (l->data, enable);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_get_motion_events_enabled:
|
|
*
|
|
* Gets whether the per-actor motion events are enabled.
|
|
*
|
|
* Return value: %TRUE if the motion events are enabled
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.8: Use clutter_stage_get_motion_events_enabled() instead.
|
|
*/
|
|
gboolean
|
|
clutter_get_motion_events_enabled (void)
|
|
{
|
|
return _clutter_context_get_motion_events_enabled ();
|
|
}
|
|
|
|
void
|
|
_clutter_id_to_color (guint id_,
|
|
ClutterColor *col)
|
|
{
|
|
ClutterMainContext *ctx;
|
|
gint red, green, blue;
|
|
|
|
ctx = _clutter_context_get_default ();
|
|
|
|
if (ctx->fb_g_mask == 0)
|
|
{
|
|
/* Figure out framebuffer masks used for pick */
|
|
cogl_get_bitmasks (&ctx->fb_r_mask,
|
|
&ctx->fb_g_mask,
|
|
&ctx->fb_b_mask, NULL);
|
|
|
|
ctx->fb_r_mask_used = ctx->fb_r_mask;
|
|
ctx->fb_g_mask_used = ctx->fb_g_mask;
|
|
ctx->fb_b_mask_used = ctx->fb_b_mask;
|
|
|
|
/* XXX - describe what "fuzzy picking" is */
|
|
if (clutter_use_fuzzy_picking)
|
|
{
|
|
ctx->fb_r_mask_used--;
|
|
ctx->fb_g_mask_used--;
|
|
ctx->fb_b_mask_used--;
|
|
}
|
|
}
|
|
|
|
/* compute the numbers we'll store in the components */
|
|
red = (id_ >> (ctx->fb_g_mask_used+ctx->fb_b_mask_used))
|
|
& (0xff >> (8-ctx->fb_r_mask_used));
|
|
green = (id_ >> ctx->fb_b_mask_used)
|
|
& (0xff >> (8-ctx->fb_g_mask_used));
|
|
blue = (id_)
|
|
& (0xff >> (8-ctx->fb_b_mask_used));
|
|
|
|
/* shift left bits a bit and add one, this circumvents
|
|
* at least some potential rounding errors in GL/GLES
|
|
* driver / hw implementation.
|
|
*/
|
|
if (ctx->fb_r_mask_used != ctx->fb_r_mask)
|
|
red = red * 2;
|
|
if (ctx->fb_g_mask_used != ctx->fb_g_mask)
|
|
green = green * 2;
|
|
if (ctx->fb_b_mask_used != ctx->fb_b_mask)
|
|
blue = blue * 2;
|
|
|
|
/* shift up to be full 8bit values */
|
|
red = (red << (8 - ctx->fb_r_mask)) | (0x7f >> (ctx->fb_r_mask_used));
|
|
green = (green << (8 - ctx->fb_g_mask)) | (0x7f >> (ctx->fb_g_mask_used));
|
|
blue = (blue << (8 - ctx->fb_b_mask)) | (0x7f >> (ctx->fb_b_mask_used));
|
|
|
|
col->red = red;
|
|
col->green = green;
|
|
col->blue = blue;
|
|
col->alpha = 0xff;
|
|
|
|
/* XXX: We rotate the nibbles of the colors here so that there is a
|
|
* visible variation between colors of sequential actor identifiers;
|
|
* otherwise pick buffers dumped to an image will pretty much just look
|
|
* black.
|
|
*/
|
|
if (G_UNLIKELY (clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS))
|
|
{
|
|
col->red = (col->red << 4) | (col->red >> 4);
|
|
col->green = (col->green << 4) | (col->green >> 4);
|
|
col->blue = (col->blue << 4) | (col->blue >> 4);
|
|
}
|
|
}
|
|
|
|
guint
|
|
_clutter_pixel_to_id (guchar pixel[4])
|
|
{
|
|
ClutterMainContext *ctx;
|
|
gint red, green, blue;
|
|
guint retval;
|
|
|
|
ctx = _clutter_context_get_default ();
|
|
|
|
/* reduce the pixel components to the number of bits actually used of the
|
|
* 8bits.
|
|
*/
|
|
if (G_UNLIKELY (clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS))
|
|
{
|
|
guchar tmp;
|
|
|
|
/* XXX: In _clutter_id_to_color we rotated the nibbles of the colors so
|
|
* that there is a visible variation between colors of sequential actor
|
|
* identifiers (otherwise pick buffers dumped to an image will pretty
|
|
* much just look black.) Here we reverse that rotation.
|
|
*/
|
|
tmp = ((pixel[0] << 4) | (pixel[0] >> 4));
|
|
red = tmp >> (8 - ctx->fb_r_mask);
|
|
tmp = ((pixel[1] << 4) | (pixel[1] >> 4));
|
|
green = tmp >> (8 - ctx->fb_g_mask);
|
|
tmp = ((pixel[2] << 4) | (pixel[2] >> 4));
|
|
blue = tmp >> (8 - ctx->fb_b_mask);
|
|
}
|
|
else
|
|
{
|
|
red = pixel[0] >> (8 - ctx->fb_r_mask);
|
|
green = pixel[1] >> (8 - ctx->fb_g_mask);
|
|
blue = pixel[2] >> (8 - ctx->fb_b_mask);
|
|
}
|
|
|
|
/* divide potentially by two if 'fuzzy' */
|
|
red = red >> (ctx->fb_r_mask - ctx->fb_r_mask_used);
|
|
green = green >> (ctx->fb_g_mask - ctx->fb_g_mask_used);
|
|
blue = blue >> (ctx->fb_b_mask - ctx->fb_b_mask_used);
|
|
|
|
/* combine the correct per component values into the final id */
|
|
retval = blue
|
|
+ (green << ctx->fb_b_mask_used)
|
|
+ (red << (ctx->fb_b_mask_used + ctx->fb_g_mask_used));
|
|
|
|
return retval;
|
|
}
|
|
|
|
static CoglPangoFontMap *
|
|
clutter_context_get_pango_fontmap (void)
|
|
{
|
|
ClutterMainContext *self;
|
|
CoglPangoFontMap *font_map;
|
|
gdouble resolution;
|
|
gboolean use_mipmapping;
|
|
|
|
self = _clutter_context_get_default ();
|
|
if (G_LIKELY (self->font_map != NULL))
|
|
return self->font_map;
|
|
|
|
font_map = COGL_PANGO_FONT_MAP (cogl_pango_font_map_new ());
|
|
|
|
resolution = clutter_backend_get_resolution (self->backend);
|
|
cogl_pango_font_map_set_resolution (font_map, resolution);
|
|
|
|
use_mipmapping = !clutter_disable_mipmap_text;
|
|
cogl_pango_font_map_set_use_mipmapping (font_map, use_mipmapping);
|
|
|
|
self->font_map = font_map;
|
|
|
|
return self->font_map;
|
|
}
|
|
|
|
static ClutterTextDirection
|
|
clutter_get_text_direction (void)
|
|
{
|
|
ClutterTextDirection dir = CLUTTER_TEXT_DIRECTION_LTR;
|
|
const gchar *direction;
|
|
|
|
direction = g_getenv ("CLUTTER_TEXT_DIRECTION");
|
|
if (direction && *direction != '\0')
|
|
{
|
|
if (strcmp (direction, "rtl") == 0)
|
|
dir = CLUTTER_TEXT_DIRECTION_RTL;
|
|
else if (strcmp (direction, "ltr") == 0)
|
|
dir = CLUTTER_TEXT_DIRECTION_LTR;
|
|
}
|
|
else
|
|
{
|
|
/* Translators: Leave this UNTRANSLATED if your language is
|
|
* left-to-right. If your language is right-to-left
|
|
* (e.g. Hebrew, Arabic), translate it to "default:RTL".
|
|
*
|
|
* Do NOT translate it to non-English e.g. "predefinito:LTR"! If
|
|
* it isn't default:LTR or default:RTL it will not work.
|
|
*/
|
|
char *e = _("default:LTR");
|
|
|
|
if (strcmp (e, "default:RTL") == 0)
|
|
dir = CLUTTER_TEXT_DIRECTION_RTL;
|
|
else if (strcmp (e, "default:LTR") == 0)
|
|
dir = CLUTTER_TEXT_DIRECTION_LTR;
|
|
else
|
|
g_warning ("Whoever translated default:LTR did so wrongly.");
|
|
}
|
|
|
|
CLUTTER_NOTE (MISC, "Text direction: %s",
|
|
dir == CLUTTER_TEXT_DIRECTION_RTL ? "rtl" : "ltr");
|
|
|
|
return dir;
|
|
}
|
|
|
|
/**
|
|
* clutter_main_quit:
|
|
*
|
|
* Terminates the Clutter mainloop.
|
|
*/
|
|
void
|
|
clutter_main_quit (void)
|
|
{
|
|
if (main_loops == NULL)
|
|
{
|
|
g_critical ("Calling clutter_main_quit() without calling clutter_main() "
|
|
"is not allowed. If you are using another main loop, use the "
|
|
"appropriate API to terminate it.");
|
|
return;
|
|
}
|
|
|
|
CLUTTER_NOTE (MISC, "Terminating main loop level %d", clutter_main_loop_level);
|
|
|
|
g_main_loop_quit (main_loops->data);
|
|
}
|
|
|
|
/**
|
|
* clutter_main_level:
|
|
*
|
|
* Retrieves the depth of the Clutter mainloop.
|
|
*
|
|
* Return value: The level of the mainloop.
|
|
*/
|
|
gint
|
|
clutter_main_level (void)
|
|
{
|
|
return clutter_main_loop_level;
|
|
}
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
static gint (*prev_poll) (GPollFD *ufds, guint nfsd, gint timeout_) = NULL;
|
|
|
|
static gint
|
|
timed_poll (GPollFD *ufds,
|
|
guint nfsd,
|
|
gint timeout_)
|
|
{
|
|
gint ret;
|
|
CLUTTER_STATIC_TIMER (poll_timer,
|
|
"Mainloop", /* parent */
|
|
"Mainloop Idle",
|
|
"The time spent idle in poll()",
|
|
0 /* no application private data */);
|
|
|
|
CLUTTER_TIMER_START (uprof_get_mainloop_context (), poll_timer);
|
|
ret = prev_poll (ufds, nfsd, timeout_);
|
|
CLUTTER_TIMER_STOP (uprof_get_mainloop_context (), poll_timer);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* clutter_main:
|
|
*
|
|
* Starts the Clutter mainloop.
|
|
*/
|
|
void
|
|
clutter_main (void)
|
|
{
|
|
GMainLoop *loop;
|
|
|
|
if (!_clutter_context_is_initialized ())
|
|
{
|
|
g_warning ("Called clutter_main() but Clutter wasn't initialised. "
|
|
"You must call clutter_init() first.");
|
|
return;
|
|
}
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
if (!prev_poll)
|
|
{
|
|
prev_poll = g_main_context_get_poll_func (NULL);
|
|
g_main_context_set_poll_func (NULL, timed_poll);
|
|
}
|
|
#endif
|
|
|
|
clutter_main_loop_level++;
|
|
|
|
CLUTTER_NOTE (MISC, "Entering main loop level %d", clutter_main_loop_level);
|
|
|
|
loop = g_main_loop_new (NULL, TRUE);
|
|
main_loops = g_slist_prepend (main_loops, loop);
|
|
|
|
if (g_main_loop_is_running (main_loops->data))
|
|
{
|
|
_clutter_threads_release_lock ();
|
|
g_main_loop_run (loop);
|
|
_clutter_threads_acquire_lock ();
|
|
}
|
|
|
|
main_loops = g_slist_remove (main_loops, loop);
|
|
|
|
g_main_loop_unref (loop);
|
|
|
|
CLUTTER_NOTE (MISC, "Leaving main loop level %d", clutter_main_loop_level);
|
|
|
|
clutter_main_loop_level--;
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_init:
|
|
*
|
|
* Initialises the Clutter threading mechanism, so that Clutter API can be
|
|
* called by multiple threads, using clutter_threads_enter() and
|
|
* clutter_threads_leave() to mark the critical sections.
|
|
*
|
|
* You must call g_thread_init() before this function.
|
|
*
|
|
* This function must be called before clutter_init().
|
|
*
|
|
* It is safe to call this function multiple times.
|
|
*
|
|
* Since: 0.4
|
|
*
|
|
* Deprecated: 1.10: This function does not do anything. Threading support
|
|
* is initialized when Clutter is initialized.
|
|
*/
|
|
void
|
|
clutter_threads_init (void)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_set_lock_functions: (skip)
|
|
* @enter_fn: function called when aquiring the Clutter main lock
|
|
* @leave_fn: function called when releasing the Clutter main lock
|
|
*
|
|
* Allows the application to replace the standard method that
|
|
* Clutter uses to protect its data structures. Normally, Clutter
|
|
* creates a single #GMutex that is locked by clutter_threads_enter(),
|
|
* and released by clutter_threads_leave(); using this function an
|
|
* application provides, instead, a function @enter_fn that is
|
|
* called by clutter_threads_enter() and a function @leave_fn that is
|
|
* called by clutter_threads_leave().
|
|
*
|
|
* The functions must provide at least same locking functionality
|
|
* as the default implementation, but can also do extra application
|
|
* specific processing.
|
|
*
|
|
* As an example, consider an application that has its own recursive
|
|
* lock that when held, holds the Clutter lock as well. When Clutter
|
|
* unlocks the Clutter lock when entering a recursive main loop, the
|
|
* application must temporarily release its lock as well.
|
|
*
|
|
* Most threaded Clutter apps won't need to use this method.
|
|
*
|
|
* This method must be called before clutter_init(), and cannot
|
|
* be called multiple times.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
void
|
|
clutter_threads_set_lock_functions (GCallback enter_fn,
|
|
GCallback leave_fn)
|
|
{
|
|
g_return_if_fail (clutter_threads_lock == NULL &&
|
|
clutter_threads_unlock == NULL);
|
|
|
|
clutter_threads_lock = enter_fn;
|
|
clutter_threads_unlock = leave_fn;
|
|
}
|
|
|
|
gboolean
|
|
_clutter_threads_dispatch (gpointer data)
|
|
{
|
|
ClutterThreadsDispatch *dispatch = data;
|
|
gboolean ret = FALSE;
|
|
|
|
_clutter_threads_acquire_lock ();
|
|
|
|
if (!g_source_is_destroyed (g_main_current_source ()))
|
|
ret = dispatch->func (dispatch->data);
|
|
|
|
_clutter_threads_release_lock ();
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
_clutter_threads_dispatch_free (gpointer data)
|
|
{
|
|
ClutterThreadsDispatch *dispatch = data;
|
|
|
|
/* XXX - we cannot hold the thread lock here because the main loop
|
|
* might destroy a source while still in the dispatcher function; so
|
|
* knowing whether the lock is being held or not is not known a priori.
|
|
*
|
|
* see bug: http://bugzilla.gnome.org/show_bug.cgi?id=459555
|
|
*/
|
|
if (dispatch->notify)
|
|
dispatch->notify (dispatch->data);
|
|
|
|
g_slice_free (ClutterThreadsDispatch, dispatch);
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_add_idle_full: (rename-to clutter_threads_add_idle)
|
|
* @priority: the priority of the timeout source. Typically this will be in the
|
|
* range between #G_PRIORITY_DEFAULT_IDLE and #G_PRIORITY_HIGH_IDLE
|
|
* @func: function to call
|
|
* @data: data to pass to the function
|
|
* @notify: functio to call when the idle source is removed
|
|
*
|
|
* Adds a function to be called whenever there are no higher priority
|
|
* events pending. If the function returns %FALSE it is automatically
|
|
* removed from the list of event sources and will not be called again.
|
|
*
|
|
* This function can be considered a thread-safe variant of g_idle_add_full():
|
|
* it will call @function while holding the Clutter lock. It is logically
|
|
* equivalent to the following implementation:
|
|
*
|
|
* |[
|
|
* static gboolean
|
|
* idle_safe_callback (gpointer data)
|
|
* {
|
|
* SafeClosure *closure = data;
|
|
* gboolean res = FALSE;
|
|
*
|
|
* // mark the critical section //
|
|
*
|
|
* clutter_threads_enter();
|
|
*
|
|
* // the callback does not need to acquire the Clutter
|
|
* / lock itself, as it is held by the this proxy handler
|
|
* //
|
|
* res = closure->callback (closure->data);
|
|
*
|
|
* clutter_threads_leave();
|
|
*
|
|
* return res;
|
|
* }
|
|
* static gulong
|
|
* add_safe_idle (GSourceFunc callback,
|
|
* gpointer data)
|
|
* {
|
|
* SafeClosure *closure = g_new0 (SafeClosure, 1);
|
|
*
|
|
* closure->callback = callback;
|
|
* closure->data = data;
|
|
*
|
|
* return g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
|
|
* idle_safe_callback,
|
|
* closure,
|
|
* g_free)
|
|
* }
|
|
*]|
|
|
*
|
|
* This function should be used by threaded applications to make sure
|
|
* that @func is emitted under the Clutter threads lock and invoked
|
|
* from the same thread that started the Clutter main loop. For instance,
|
|
* it can be used to update the UI using the results from a worker
|
|
* thread:
|
|
*
|
|
* |[
|
|
* static gboolean
|
|
* update_ui (gpointer data)
|
|
* {
|
|
* SomeClosure *closure = data;
|
|
*
|
|
* // it is safe to call Clutter API from this function because
|
|
* / it is invoked from the same thread that started the main
|
|
* / loop and under the Clutter thread lock
|
|
* //
|
|
* clutter_label_set_text (CLUTTER_LABEL (closure->label),
|
|
* closure->text);
|
|
*
|
|
* g_object_unref (closure->label);
|
|
* g_free (closure);
|
|
*
|
|
* return FALSE;
|
|
* }
|
|
*
|
|
* // within another thread //
|
|
* closure = g_new0 (SomeClosure, 1);
|
|
* // always take a reference on GObject instances //
|
|
* closure->label = g_object_ref (my_application->label);
|
|
* closure->text = g_strdup (processed_text_to_update_the_label);
|
|
*
|
|
* clutter_threads_add_idle_full (G_PRIORITY_HIGH_IDLE,
|
|
* update_ui,
|
|
* closure,
|
|
* NULL);
|
|
* ]|
|
|
*
|
|
* Return value: the ID (greater than 0) of the event source.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
guint
|
|
clutter_threads_add_idle_full (gint priority,
|
|
GSourceFunc func,
|
|
gpointer data,
|
|
GDestroyNotify notify)
|
|
{
|
|
ClutterThreadsDispatch *dispatch;
|
|
|
|
g_return_val_if_fail (func != NULL, 0);
|
|
|
|
dispatch = g_slice_new (ClutterThreadsDispatch);
|
|
dispatch->func = func;
|
|
dispatch->data = data;
|
|
dispatch->notify = notify;
|
|
|
|
return g_idle_add_full (priority,
|
|
_clutter_threads_dispatch, dispatch,
|
|
_clutter_threads_dispatch_free);
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_add_idle: (skip)
|
|
* @func: function to call
|
|
* @data: data to pass to the function
|
|
*
|
|
* Simple wrapper around clutter_threads_add_idle_full() using the
|
|
* default priority.
|
|
*
|
|
* Return value: the ID (greater than 0) of the event source.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
guint
|
|
clutter_threads_add_idle (GSourceFunc func,
|
|
gpointer data)
|
|
{
|
|
g_return_val_if_fail (func != NULL, 0);
|
|
|
|
return clutter_threads_add_idle_full (G_PRIORITY_DEFAULT_IDLE,
|
|
func, data,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_add_timeout_full: (rename-to clutter_threads_add_timeout)
|
|
* @priority: the priority of the timeout source. Typically this will be in the
|
|
* range between #G_PRIORITY_DEFAULT and #G_PRIORITY_HIGH.
|
|
* @interval: the time between calls to the function, in milliseconds
|
|
* @func: function to call
|
|
* @data: data to pass to the function
|
|
* @notify: function to call when the timeout source is removed
|
|
*
|
|
* Sets a function to be called at regular intervals holding the Clutter
|
|
* threads lock, with the given priority. The function is called repeatedly
|
|
* until it returns %FALSE, at which point the timeout is automatically
|
|
* removed and the function will not be called again. The @notify function
|
|
* is called when the timeout is removed.
|
|
*
|
|
* The first call to the function will be at the end of the first @interval.
|
|
*
|
|
* It is important to note that, due to how the Clutter main loop is
|
|
* implemented, the timing will not be accurate and it will not try to
|
|
* "keep up" with the interval.
|
|
*
|
|
* See also clutter_threads_add_idle_full().
|
|
*
|
|
* Return value: the ID (greater than 0) of the event source.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
guint
|
|
clutter_threads_add_timeout_full (gint priority,
|
|
guint interval,
|
|
GSourceFunc func,
|
|
gpointer data,
|
|
GDestroyNotify notify)
|
|
{
|
|
ClutterThreadsDispatch *dispatch;
|
|
|
|
g_return_val_if_fail (func != NULL, 0);
|
|
|
|
dispatch = g_slice_new (ClutterThreadsDispatch);
|
|
dispatch->func = func;
|
|
dispatch->data = data;
|
|
dispatch->notify = notify;
|
|
|
|
return g_timeout_add_full (priority,
|
|
interval,
|
|
_clutter_threads_dispatch, dispatch,
|
|
_clutter_threads_dispatch_free);
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_add_timeout: (skip)
|
|
* @interval: the time between calls to the function, in milliseconds
|
|
* @func: function to call
|
|
* @data: data to pass to the function
|
|
*
|
|
* Simple wrapper around clutter_threads_add_timeout_full().
|
|
*
|
|
* Return value: the ID (greater than 0) of the event source.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
guint
|
|
clutter_threads_add_timeout (guint interval,
|
|
GSourceFunc func,
|
|
gpointer data)
|
|
{
|
|
g_return_val_if_fail (func != NULL, 0);
|
|
|
|
return clutter_threads_add_timeout_full (G_PRIORITY_DEFAULT,
|
|
interval,
|
|
func, data,
|
|
NULL);
|
|
}
|
|
|
|
void
|
|
_clutter_threads_acquire_lock (void)
|
|
{
|
|
if (clutter_threads_lock != NULL)
|
|
(* clutter_threads_lock) ();
|
|
}
|
|
|
|
void
|
|
_clutter_threads_release_lock (void)
|
|
{
|
|
if (clutter_threads_unlock != NULL)
|
|
(* clutter_threads_unlock) ();
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_enter:
|
|
*
|
|
* Locks the Clutter thread lock.
|
|
*
|
|
* Since: 0.4
|
|
*
|
|
* Deprecated: 1.12: This function should not be used by application
|
|
* code; marking critical sections is not portable on various
|
|
* platforms. Instead of acquiring the Clutter lock, schedule UI
|
|
* updates from the main loop using clutter_threads_add_idle() or
|
|
* clutter_threads_add_timeout().
|
|
*/
|
|
void
|
|
clutter_threads_enter (void)
|
|
{
|
|
_clutter_threads_acquire_lock ();
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_leave:
|
|
*
|
|
* Unlocks the Clutter thread lock.
|
|
*
|
|
* Since: 0.4
|
|
*
|
|
* Deprecated: 1.12: This function should not be used by application
|
|
* code; marking critical sections is not portable on various
|
|
* platforms. Instead of acquiring the Clutter lock, schedule UI
|
|
* updates from the main loop using clutter_threads_add_idle() or
|
|
* clutter_threads_add_timeout().
|
|
*/
|
|
void
|
|
clutter_threads_leave (void)
|
|
{
|
|
_clutter_threads_release_lock ();
|
|
}
|
|
|
|
|
|
/**
|
|
* clutter_get_debug_enabled:
|
|
*
|
|
* Check if Clutter has debugging enabled.
|
|
*
|
|
* Return value: %FALSE
|
|
*
|
|
* Deprecated: 1.10: This function does not do anything.
|
|
*/
|
|
gboolean
|
|
clutter_get_debug_enabled (void)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
_clutter_context_lock (void)
|
|
{
|
|
G_LOCK (ClutterCntx);
|
|
}
|
|
|
|
void
|
|
_clutter_context_unlock (void)
|
|
{
|
|
G_UNLOCK (ClutterCntx);
|
|
}
|
|
|
|
gboolean
|
|
_clutter_context_is_initialized (void)
|
|
{
|
|
if (ClutterCntx == NULL)
|
|
return FALSE;
|
|
|
|
return ClutterCntx->is_initialized;
|
|
}
|
|
|
|
static ClutterMainContext *
|
|
clutter_context_get_default_unlocked (void)
|
|
{
|
|
if (G_UNLIKELY (ClutterCntx == NULL))
|
|
{
|
|
ClutterMainContext *ctx;
|
|
|
|
ClutterCntx = ctx = g_new0 (ClutterMainContext, 1);
|
|
|
|
ctx->is_initialized = FALSE;
|
|
|
|
/* create the windowing system backend */
|
|
ctx->backend = _clutter_create_backend ();
|
|
|
|
/* create the default settings object, and store a back pointer to
|
|
* the backend singleton
|
|
*/
|
|
ctx->settings = clutter_settings_get_default ();
|
|
_clutter_settings_set_backend (ctx->settings, ctx->backend);
|
|
|
|
ctx->motion_events_per_actor = TRUE;
|
|
ctx->last_repaint_id = 1;
|
|
}
|
|
|
|
return ClutterCntx;
|
|
}
|
|
|
|
ClutterMainContext *
|
|
_clutter_context_get_default (void)
|
|
{
|
|
ClutterMainContext *retval;
|
|
|
|
_clutter_context_lock ();
|
|
|
|
retval = clutter_context_get_default_unlocked ();
|
|
|
|
_clutter_context_unlock ();
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* clutter_get_timestamp:
|
|
*
|
|
* Returns the approximate number of microseconds passed since Clutter was
|
|
* intialised.
|
|
*
|
|
* This function shdould not be used by application code.
|
|
*
|
|
* The output of this function depends on whether Clutter was configured to
|
|
* enable its debugging code paths, so it's less useful than intended.
|
|
*
|
|
* Since Clutter 1.10, this function is an alias to g_get_monotonic_time()
|
|
* if Clutter was configured to enable the debugging code paths.
|
|
*
|
|
* Return value: Number of microseconds since clutter_init() was called, or
|
|
* zero if Clutter was not configured with debugging code paths.
|
|
*
|
|
* Deprecated: 1.10: Use #GTimer or g_get_monotonic_time() for a proper
|
|
* timing source
|
|
*/
|
|
gulong
|
|
clutter_get_timestamp (void)
|
|
{
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
return (gulong) g_get_monotonic_time ();
|
|
#else
|
|
return 0L;
|
|
#endif
|
|
}
|
|
|
|
static gboolean
|
|
clutter_arg_direction_cb (const char *key,
|
|
const char *value,
|
|
gpointer user_data)
|
|
{
|
|
clutter_text_direction =
|
|
(strcmp (value, "rtl") == 0) ? CLUTTER_TEXT_DIRECTION_RTL
|
|
: CLUTTER_TEXT_DIRECTION_LTR;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
static gboolean
|
|
clutter_arg_debug_cb (const char *key,
|
|
const char *value,
|
|
gpointer user_data)
|
|
{
|
|
clutter_debug_flags |=
|
|
g_parse_debug_string (value,
|
|
clutter_debug_keys,
|
|
G_N_ELEMENTS (clutter_debug_keys));
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
clutter_arg_no_debug_cb (const char *key,
|
|
const char *value,
|
|
gpointer user_data)
|
|
{
|
|
clutter_debug_flags &=
|
|
~g_parse_debug_string (value,
|
|
clutter_debug_keys,
|
|
G_N_ELEMENTS (clutter_debug_keys));
|
|
return TRUE;
|
|
}
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
static gboolean
|
|
clutter_arg_profile_cb (const char *key,
|
|
const char *value,
|
|
gpointer user_data)
|
|
{
|
|
clutter_profile_flags |=
|
|
g_parse_debug_string (value,
|
|
clutter_profile_keys,
|
|
G_N_ELEMENTS (clutter_profile_keys));
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
clutter_arg_no_profile_cb (const char *key,
|
|
const char *value,
|
|
gpointer user_data)
|
|
{
|
|
clutter_profile_flags &=
|
|
~g_parse_debug_string (value,
|
|
clutter_profile_keys,
|
|
G_N_ELEMENTS (clutter_profile_keys));
|
|
return TRUE;
|
|
}
|
|
#endif /* CLUTTER_ENABLE_PROFILE */
|
|
|
|
GQuark
|
|
clutter_init_error_quark (void)
|
|
{
|
|
return g_quark_from_static_string ("clutter-init-error-quark");
|
|
}
|
|
|
|
static ClutterInitError
|
|
clutter_init_real (GError **error)
|
|
{
|
|
ClutterMainContext *ctx;
|
|
ClutterBackend *backend;
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
CLUTTER_STATIC_TIMER (mainloop_timer,
|
|
NULL, /* no parent */
|
|
"Mainloop",
|
|
"The time spent in the clutter mainloop",
|
|
0 /* no application private data */);
|
|
#endif
|
|
|
|
/* Note, creates backend if not already existing, though parse args will
|
|
* have likely created it
|
|
*/
|
|
ctx = _clutter_context_get_default ();
|
|
backend = ctx->backend;
|
|
|
|
if (!ctx->options_parsed)
|
|
{
|
|
if (error)
|
|
g_set_error (error, CLUTTER_INIT_ERROR,
|
|
CLUTTER_INIT_ERROR_INTERNAL,
|
|
"When using clutter_get_option_group_without_init() "
|
|
"you must parse options before calling clutter_init()");
|
|
else
|
|
g_critical ("When using clutter_get_option_group_without_init() "
|
|
"you must parse options before calling clutter_init()");
|
|
|
|
return CLUTTER_INIT_ERROR_INTERNAL;
|
|
}
|
|
|
|
/*
|
|
* Call backend post parse hooks.
|
|
*/
|
|
if (!_clutter_backend_post_parse (backend, error))
|
|
return CLUTTER_INIT_ERROR_BACKEND;
|
|
|
|
/* If we are displaying the regions that would get redrawn with clipped
|
|
* redraws enabled we actually have to disable the clipped redrawing
|
|
* because otherwise we end up with nasty trails of rectangles everywhere.
|
|
*/
|
|
if (clutter_paint_debug_flags & CLUTTER_DEBUG_REDRAWS)
|
|
clutter_paint_debug_flags |= CLUTTER_DEBUG_DISABLE_CLIPPED_REDRAWS;
|
|
|
|
/* The same is true when drawing the outlines of paint volumes... */
|
|
if (clutter_paint_debug_flags & CLUTTER_DEBUG_PAINT_VOLUMES)
|
|
{
|
|
clutter_paint_debug_flags |=
|
|
CLUTTER_DEBUG_DISABLE_CLIPPED_REDRAWS | CLUTTER_DEBUG_DISABLE_CULLING;
|
|
}
|
|
|
|
/* this will take care of initializing Cogl's state and
|
|
* query the GL machinery for features
|
|
*/
|
|
if (!_clutter_feature_init (error))
|
|
return CLUTTER_INIT_ERROR_BACKEND;
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
/* We need to be absolutely sure that uprof has been initialized
|
|
* before calling _clutter_uprof_init. uprof_init (NULL, NULL)
|
|
* will be a NOP if it has been initialized but it will also
|
|
* mean subsequent parsing of the UProf GOptionGroup will have no
|
|
* affect.
|
|
*
|
|
* Sadly GOptionGroup based library initialization is extremly
|
|
* fragile by design because GOptionGroups have no notion of
|
|
* dependencies and our post_parse_hook may be called before
|
|
* the cogl or uprof groups get parsed.
|
|
*/
|
|
uprof_init (NULL, NULL);
|
|
_clutter_uprof_init ();
|
|
|
|
CLUTTER_TIMER_START (uprof_get_mainloop_context (), mainloop_timer);
|
|
|
|
if (clutter_profile_flags & CLUTTER_PROFILE_PICKING_ONLY)
|
|
_clutter_profile_suspend ();
|
|
#endif
|
|
|
|
clutter_text_direction = clutter_get_text_direction ();
|
|
|
|
/* Initiate event collection */
|
|
_clutter_backend_init_events (ctx->backend);
|
|
|
|
clutter_is_initialized = TRUE;
|
|
ctx->is_initialized = TRUE;
|
|
|
|
/* Initialize a11y */
|
|
if (clutter_enable_accessibility)
|
|
cally_accessibility_init ();
|
|
|
|
return CLUTTER_INIT_SUCCESS;
|
|
}
|
|
|
|
static GOptionEntry clutter_args[] = {
|
|
{ "clutter-show-fps", 0, 0, G_OPTION_ARG_NONE, &clutter_show_fps,
|
|
N_("Show frames per second"), NULL },
|
|
{ "clutter-default-fps", 0, 0, G_OPTION_ARG_INT, &clutter_default_fps,
|
|
N_("Default frame rate"), "FPS" },
|
|
{ "g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &clutter_fatal_warnings,
|
|
N_("Make all warnings fatal"), NULL },
|
|
{ "clutter-text-direction", 0, 0, G_OPTION_ARG_CALLBACK,
|
|
clutter_arg_direction_cb,
|
|
N_("Direction for the text"), "DIRECTION" },
|
|
{ "clutter-disable-mipmapped-text", 0, 0, G_OPTION_ARG_NONE,
|
|
&clutter_disable_mipmap_text,
|
|
N_("Disable mipmapping on text"), NULL },
|
|
{ "clutter-use-fuzzy-picking", 0, 0, G_OPTION_ARG_NONE,
|
|
&clutter_use_fuzzy_picking,
|
|
N_("Use 'fuzzy' picking"), NULL },
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
{ "clutter-debug", 0, 0, G_OPTION_ARG_CALLBACK, clutter_arg_debug_cb,
|
|
N_("Clutter debugging flags to set"), "FLAGS" },
|
|
{ "clutter-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, clutter_arg_no_debug_cb,
|
|
N_("Clutter debugging flags to unset"), "FLAGS" },
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
{ "clutter-profile", 0, 0, G_OPTION_ARG_CALLBACK, clutter_arg_profile_cb,
|
|
N_("Clutter profiling flags to set"), "FLAGS" },
|
|
{ "clutter-no-profile", 0, 0, G_OPTION_ARG_CALLBACK, clutter_arg_no_profile_cb,
|
|
N_("Clutter profiling flags to unset"), "FLAGS" },
|
|
#endif /* CLUTTER_ENABLE_PROFILE */
|
|
{ "clutter-enable-accessibility", 0, 0, G_OPTION_ARG_NONE, &clutter_enable_accessibility,
|
|
N_("Enable accessibility"), NULL },
|
|
{ NULL, },
|
|
};
|
|
|
|
/* pre_parse_hook: initialise variables depending on environment
|
|
* variables; these variables might be overridden by the command
|
|
* line arguments that are going to be parsed after.
|
|
*/
|
|
static gboolean
|
|
pre_parse_hook (GOptionContext *context,
|
|
GOptionGroup *group,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
ClutterMainContext *clutter_context;
|
|
ClutterBackend *backend;
|
|
const char *env_string;
|
|
|
|
if (clutter_is_initialized)
|
|
return TRUE;
|
|
|
|
if (setlocale (LC_ALL, "") == NULL)
|
|
g_warning ("Locale not supported by C library.\n"
|
|
"Using the fallback 'C' locale.");
|
|
|
|
/* read the configuration file, if it exists; the configuration file
|
|
* determines the initial state of the settings, so that command line
|
|
* arguments can override them.
|
|
*/
|
|
clutter_config_read ();
|
|
|
|
clutter_context = _clutter_context_get_default ();
|
|
|
|
backend = clutter_context->backend;
|
|
g_assert (CLUTTER_IS_BACKEND (backend));
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
env_string = g_getenv ("CLUTTER_DEBUG");
|
|
if (env_string != NULL)
|
|
{
|
|
clutter_debug_flags =
|
|
g_parse_debug_string (env_string,
|
|
clutter_debug_keys,
|
|
G_N_ELEMENTS (clutter_debug_keys));
|
|
env_string = NULL;
|
|
}
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
env_string = g_getenv ("CLUTTER_PROFILE");
|
|
if (env_string != NULL)
|
|
{
|
|
clutter_profile_flags =
|
|
g_parse_debug_string (env_string,
|
|
clutter_profile_keys,
|
|
G_N_ELEMENTS (clutter_profile_keys));
|
|
env_string = NULL;
|
|
}
|
|
#endif /* CLUTTER_ENABLE_PROFILE */
|
|
|
|
env_string = g_getenv ("CLUTTER_PICK");
|
|
if (env_string != NULL)
|
|
{
|
|
clutter_pick_debug_flags =
|
|
g_parse_debug_string (env_string,
|
|
clutter_pick_debug_keys,
|
|
G_N_ELEMENTS (clutter_pick_debug_keys));
|
|
env_string = NULL;
|
|
}
|
|
|
|
env_string = g_getenv ("CLUTTER_PAINT");
|
|
if (env_string != NULL)
|
|
{
|
|
clutter_paint_debug_flags =
|
|
g_parse_debug_string (env_string,
|
|
clutter_paint_debug_keys,
|
|
G_N_ELEMENTS (clutter_paint_debug_keys));
|
|
env_string = NULL;
|
|
}
|
|
|
|
env_string = g_getenv ("CLUTTER_SHOW_FPS");
|
|
if (env_string)
|
|
clutter_show_fps = TRUE;
|
|
|
|
env_string = g_getenv ("CLUTTER_DEFAULT_FPS");
|
|
if (env_string)
|
|
{
|
|
gint default_fps = g_ascii_strtoll (env_string, NULL, 10);
|
|
|
|
clutter_default_fps = CLAMP (default_fps, 1, 1000);
|
|
}
|
|
|
|
env_string = g_getenv ("CLUTTER_DISABLE_MIPMAPPED_TEXT");
|
|
if (env_string)
|
|
clutter_disable_mipmap_text = TRUE;
|
|
|
|
env_string = g_getenv ("CLUTTER_FUZZY_PICK");
|
|
if (env_string)
|
|
clutter_use_fuzzy_picking = TRUE;
|
|
|
|
env_string = g_getenv ("CLUTTER_VBLANK");
|
|
if (g_strcmp0 (env_string, "none") == 0)
|
|
clutter_sync_to_vblank = FALSE;
|
|
|
|
return _clutter_backend_pre_parse (backend, error);
|
|
}
|
|
|
|
/* post_parse_hook: initialise the context and data structures
|
|
* and opens the X display
|
|
*/
|
|
static gboolean
|
|
post_parse_hook (GOptionContext *context,
|
|
GOptionGroup *group,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
ClutterMainContext *clutter_context;
|
|
ClutterBackend *backend;
|
|
|
|
if (clutter_is_initialized)
|
|
return TRUE;
|
|
|
|
clutter_context = _clutter_context_get_default ();
|
|
backend = clutter_context->backend;
|
|
g_assert (CLUTTER_IS_BACKEND (backend));
|
|
|
|
if (clutter_fatal_warnings)
|
|
{
|
|
GLogLevelFlags fatal_mask;
|
|
|
|
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
|
|
fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
|
|
g_log_set_always_fatal (fatal_mask);
|
|
}
|
|
|
|
clutter_context->frame_rate = clutter_default_fps;
|
|
clutter_context->show_fps = clutter_show_fps;
|
|
clutter_context->options_parsed = TRUE;
|
|
|
|
/* If not asked to defer display setup, call clutter_init_real(),
|
|
* which in turn calls the backend post parse hooks.
|
|
*/
|
|
if (!clutter_context->defer_display_setup)
|
|
return clutter_init_real (error) == CLUTTER_INIT_SUCCESS;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* clutter_get_option_group: (skip)
|
|
*
|
|
* Returns a #GOptionGroup for the command line arguments recognized
|
|
* by Clutter. You should add this group to your #GOptionContext with
|
|
* g_option_context_add_group(), if you are using g_option_context_parse()
|
|
* to parse your commandline arguments.
|
|
*
|
|
* Calling g_option_context_parse() with Clutter's #GOptionGroup will result
|
|
* in Clutter's initialization. That is, the following code:
|
|
*
|
|
* |[
|
|
* g_option_context_set_main_group (context, clutter_get_option_group ());
|
|
* res = g_option_context_parse (context, &argc, &argc, NULL);
|
|
* ]|
|
|
*
|
|
* is functionally equivalent to:
|
|
*
|
|
* |[
|
|
* clutter_init (&argc, &argv);
|
|
* ]|
|
|
*
|
|
* After g_option_context_parse() on a #GOptionContext containing the
|
|
* Clutter #GOptionGroup has returned %TRUE, Clutter is guaranteed to be
|
|
* initialized.
|
|
*
|
|
* Return value: (transfer full): a #GOptionGroup for the commandline arguments
|
|
* recognized by Clutter
|
|
*
|
|
* Since: 0.2
|
|
*/
|
|
GOptionGroup *
|
|
clutter_get_option_group (void)
|
|
{
|
|
ClutterMainContext *context;
|
|
GOptionGroup *group;
|
|
|
|
clutter_base_init ();
|
|
|
|
context = _clutter_context_get_default ();
|
|
|
|
group = g_option_group_new ("clutter",
|
|
_("Clutter Options"),
|
|
_("Show Clutter Options"),
|
|
NULL,
|
|
NULL);
|
|
|
|
g_option_group_set_parse_hooks (group, pre_parse_hook, post_parse_hook);
|
|
g_option_group_add_entries (group, clutter_args);
|
|
g_option_group_set_translation_domain (group, GETTEXT_PACKAGE);
|
|
|
|
/* add backend-specific options */
|
|
_clutter_backend_add_options (context->backend, group);
|
|
|
|
return group;
|
|
}
|
|
|
|
/**
|
|
* clutter_get_option_group_without_init: (skip)
|
|
*
|
|
* Returns a #GOptionGroup for the command line arguments recognized
|
|
* by Clutter. You should add this group to your #GOptionContext with
|
|
* g_option_context_add_group(), if you are using g_option_context_parse()
|
|
* to parse your commandline arguments.
|
|
*
|
|
* Unlike clutter_get_option_group(), calling g_option_context_parse() with
|
|
* the #GOptionGroup returned by this function requires a subsequent explicit
|
|
* call to clutter_init(); use this function when needing to set foreign
|
|
* display connection with clutter_x11_set_display(), or with
|
|
* `gtk_clutter_init()`.
|
|
*
|
|
* Return value: (transfer full): a #GOptionGroup for the commandline arguments
|
|
* recognized by Clutter
|
|
*
|
|
* Since: 0.8.2
|
|
*/
|
|
GOptionGroup *
|
|
clutter_get_option_group_without_init (void)
|
|
{
|
|
ClutterMainContext *context;
|
|
GOptionGroup *group;
|
|
|
|
clutter_base_init ();
|
|
|
|
context = _clutter_context_get_default ();
|
|
context->defer_display_setup = TRUE;
|
|
|
|
group = clutter_get_option_group ();
|
|
|
|
return group;
|
|
}
|
|
|
|
/* Note that the gobject-introspection annotations for the argc/argv
|
|
* parameters do not produce the right result; however, they do
|
|
* allow the common case of argc=NULL, argv=NULL to work.
|
|
*/
|
|
|
|
/**
|
|
* clutter_init_with_args:
|
|
* @argc: (inout): a pointer to the number of command line arguments
|
|
* @argv: (array length=argc) (inout) (allow-none): a pointer to the array
|
|
* of command line arguments
|
|
* @parameter_string: (allow-none): a string which is displayed in the
|
|
* first line of <option>--help</option> output, after
|
|
* <literal><replaceable>programname</replaceable> [OPTION...]</literal>
|
|
* @entries: (array) (allow-none): a %NULL terminated array of
|
|
* #GOptionEntry<!-- -->s describing the options of your program
|
|
* @translation_domain: (allow-none): a translation domain to use for
|
|
* translating the <option>--help</option> output for the options in
|
|
* @entries with gettext(), or %NULL
|
|
* @error: (allow-none): a return location for a #GError
|
|
*
|
|
* This function does the same work as clutter_init(). Additionally,
|
|
* it allows you to add your own command line options, and it
|
|
* automatically generates nicely formatted <option>--help</option>
|
|
* output. Note that your program will be terminated after writing
|
|
* out the help output. Also note that, in case of error, the
|
|
* error message will be placed inside @error instead of being
|
|
* printed on the display.
|
|
*
|
|
* Just like clutter_init(), if this function returns an error code then
|
|
* any subsequent call to any other Clutter API will result in undefined
|
|
* behaviour - including segmentation faults.
|
|
*
|
|
* Return value: %CLUTTER_INIT_SUCCESS if Clutter has been successfully
|
|
* initialised, or other values or #ClutterInitError in case of
|
|
* error.
|
|
*
|
|
* Since: 0.2
|
|
*/
|
|
ClutterInitError
|
|
clutter_init_with_args (int *argc,
|
|
char ***argv,
|
|
const char *parameter_string,
|
|
GOptionEntry *entries,
|
|
const char *translation_domain,
|
|
GError **error)
|
|
{
|
|
GOptionContext *context;
|
|
GOptionGroup *group;
|
|
gboolean res;
|
|
ClutterMainContext *ctx;
|
|
|
|
if (clutter_is_initialized)
|
|
return CLUTTER_INIT_SUCCESS;
|
|
|
|
clutter_base_init ();
|
|
|
|
ctx = _clutter_context_get_default ();
|
|
|
|
if (!ctx->defer_display_setup)
|
|
{
|
|
#if 0
|
|
if (argc && *argc > 0 && *argv)
|
|
g_set_prgname ((*argv)[0]);
|
|
#endif
|
|
|
|
context = g_option_context_new (parameter_string);
|
|
|
|
group = clutter_get_option_group ();
|
|
g_option_context_add_group (context, group);
|
|
|
|
group = cogl_get_option_group ();
|
|
g_option_context_add_group (context, group);
|
|
|
|
/* Note: That due to the implementation details of glib's goption
|
|
* parsing; cogl and uprof will not actually have there arguments
|
|
* parsed before the post_parse_hook is called! */
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
group = uprof_get_option_group ();
|
|
g_option_context_add_group (context, group);
|
|
#endif
|
|
|
|
if (entries)
|
|
g_option_context_add_main_entries (context, entries, translation_domain);
|
|
|
|
res = g_option_context_parse (context, argc, argv, error);
|
|
g_option_context_free (context);
|
|
|
|
/* if res is FALSE, the error is filled for
|
|
* us by g_option_context_parse()
|
|
*/
|
|
if (!res)
|
|
{
|
|
/* if there has been an error in the initialization, the
|
|
* error id will be preserved inside the GError code
|
|
*/
|
|
if (error && *error)
|
|
return (*error)->code;
|
|
else
|
|
return CLUTTER_INIT_ERROR_INTERNAL;
|
|
}
|
|
|
|
return CLUTTER_INIT_SUCCESS;
|
|
}
|
|
else
|
|
return clutter_init_real (error);
|
|
}
|
|
|
|
static gboolean
|
|
clutter_parse_args (int *argc,
|
|
char ***argv,
|
|
GError **error)
|
|
{
|
|
GOptionContext *option_context;
|
|
GOptionGroup *clutter_group, *cogl_group;
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
GOptionGroup *uprof_group;
|
|
#endif
|
|
GError *internal_error = NULL;
|
|
gboolean ret = TRUE;
|
|
|
|
if (clutter_is_initialized)
|
|
return TRUE;
|
|
|
|
option_context = g_option_context_new (NULL);
|
|
g_option_context_set_ignore_unknown_options (option_context, TRUE);
|
|
g_option_context_set_help_enabled (option_context, FALSE);
|
|
|
|
/* Initiate any command line options from the backend */
|
|
clutter_group = clutter_get_option_group ();
|
|
g_option_context_set_main_group (option_context, clutter_group);
|
|
|
|
cogl_group = cogl_get_option_group ();
|
|
g_option_context_add_group (option_context, cogl_group);
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
uprof_group = uprof_get_option_group ();
|
|
g_option_context_add_group (option_context, uprof_group);
|
|
#endif
|
|
|
|
if (!g_option_context_parse (option_context, argc, argv, &internal_error))
|
|
{
|
|
g_propagate_error (error, internal_error);
|
|
ret = FALSE;
|
|
}
|
|
|
|
g_option_context_free (option_context);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* clutter_init:
|
|
* @argc: (inout): The number of arguments in @argv
|
|
* @argv: (array length=argc) (inout) (allow-none): A pointer to an array
|
|
* of arguments.
|
|
*
|
|
* Initialises everything needed to operate with Clutter and parses some
|
|
* standard command line options; @argc and @argv are adjusted accordingly
|
|
* so your own code will never see those standard arguments.
|
|
*
|
|
* It is safe to call this function multiple times.
|
|
*
|
|
* This function will not abort in case of errors during
|
|
* initialization; clutter_init() will print out the error message on
|
|
* stderr, and will return an error code. It is up to the application
|
|
* code to handle this case. If you need to display the error message
|
|
* yourself, you can use clutter_init_with_args(), which takes a #GError
|
|
* pointer.
|
|
*
|
|
* If this function fails, and returns an error code, any subsequent
|
|
* Clutter API will have undefined behaviour - including segmentation
|
|
* faults and assertion failures. Make sure to handle the returned
|
|
* #ClutterInitError enumeration value.
|
|
*
|
|
* Return value: a #ClutterInitError value
|
|
*/
|
|
ClutterInitError
|
|
clutter_init (int *argc,
|
|
char ***argv)
|
|
{
|
|
ClutterMainContext *ctx;
|
|
GError *error = NULL;
|
|
ClutterInitError res;
|
|
|
|
if (clutter_is_initialized)
|
|
return CLUTTER_INIT_SUCCESS;
|
|
|
|
clutter_base_init ();
|
|
|
|
ctx = _clutter_context_get_default ();
|
|
|
|
if (!ctx->defer_display_setup)
|
|
{
|
|
#if 0
|
|
if (argc && *argc > 0 && *argv)
|
|
g_set_prgname ((*argv)[0]);
|
|
#endif
|
|
|
|
/* parse_args will trigger backend creation and things like
|
|
* DISPLAY connection etc.
|
|
*/
|
|
if (!clutter_parse_args (argc, argv, &error))
|
|
{
|
|
g_critical ("Unable to initialize Clutter: %s", error->message);
|
|
g_error_free (error);
|
|
|
|
res = CLUTTER_INIT_ERROR_INTERNAL;
|
|
}
|
|
else
|
|
res = CLUTTER_INIT_SUCCESS;
|
|
}
|
|
else
|
|
{
|
|
res = clutter_init_real (&error);
|
|
if (error != NULL)
|
|
{
|
|
g_critical ("Unable to initialize Clutter: %s", error->message);
|
|
g_error_free (error);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
gboolean
|
|
_clutter_boolean_handled_accumulator (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *handler_return,
|
|
gpointer dummy)
|
|
{
|
|
gboolean continue_emission;
|
|
gboolean signal_handled;
|
|
|
|
signal_handled = g_value_get_boolean (handler_return);
|
|
g_value_set_boolean (return_accu, signal_handled);
|
|
continue_emission = !signal_handled;
|
|
|
|
return continue_emission;
|
|
}
|
|
|
|
gboolean
|
|
_clutter_boolean_continue_accumulator (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *handler_return,
|
|
gpointer dummy)
|
|
{
|
|
gboolean continue_emission;
|
|
|
|
continue_emission = g_value_get_boolean (handler_return);
|
|
g_value_set_boolean (return_accu, continue_emission);
|
|
|
|
return continue_emission;
|
|
}
|
|
|
|
static void
|
|
event_click_count_generate (ClutterEvent *event)
|
|
{
|
|
/* multiple button click detection */
|
|
static gint click_count = 0;
|
|
static gint previous_x = -1;
|
|
static gint previous_y = -1;
|
|
static guint32 previous_time = 0;
|
|
static gint previous_button_number = -1;
|
|
|
|
ClutterInputDevice *device = NULL;
|
|
ClutterSettings *settings;
|
|
guint double_click_time;
|
|
guint double_click_distance;
|
|
|
|
settings = clutter_settings_get_default ();
|
|
|
|
g_object_get (settings,
|
|
"double-click-distance", &double_click_distance,
|
|
"double-click-time", &double_click_time,
|
|
NULL);
|
|
|
|
device = clutter_event_get_device (event);
|
|
if (device != NULL)
|
|
{
|
|
click_count = device->click_count;
|
|
previous_x = device->previous_x;
|
|
previous_y = device->previous_y;
|
|
previous_time = device->previous_time;
|
|
previous_button_number = device->previous_button_number;
|
|
|
|
CLUTTER_NOTE (EVENT,
|
|
"Restoring previous click count:%d (device:%d, time:%u)",
|
|
click_count,
|
|
clutter_input_device_get_device_id (device),
|
|
previous_time);
|
|
}
|
|
else
|
|
{
|
|
CLUTTER_NOTE (EVENT,
|
|
"Restoring previous click count:%d (time:%u)",
|
|
click_count,
|
|
previous_time);
|
|
}
|
|
|
|
switch (clutter_event_type (event))
|
|
{
|
|
case CLUTTER_BUTTON_PRESS:
|
|
/* check if we are in time and within distance to increment an
|
|
* existing click count
|
|
*/
|
|
if (event->button.button == previous_button_number &&
|
|
event->button.time < (previous_time + double_click_time) &&
|
|
(ABS (event->button.x - previous_x) <= double_click_distance) &&
|
|
(ABS (event->button.y - previous_y) <= double_click_distance))
|
|
{
|
|
CLUTTER_NOTE (EVENT, "Increase click count (button: %d, time: %u)",
|
|
event->button.button,
|
|
event->button.time);
|
|
|
|
click_count += 1;
|
|
}
|
|
else /* start a new click count*/
|
|
{
|
|
CLUTTER_NOTE (EVENT, "Reset click count (button: %d, time: %u)",
|
|
event->button.button,
|
|
event->button.time);
|
|
|
|
click_count = 1;
|
|
previous_button_number = event->button.button;
|
|
}
|
|
|
|
previous_x = event->button.x;
|
|
previous_y = event->button.y;
|
|
previous_time = event->button.time;
|
|
|
|
/* fallthrough */
|
|
case CLUTTER_BUTTON_RELEASE:
|
|
event->button.click_count = click_count;
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
if (event->type == CLUTTER_BUTTON_PRESS && device != NULL)
|
|
{
|
|
CLUTTER_NOTE (EVENT, "Storing click count: %d (device:%d, time:%u)",
|
|
click_count,
|
|
clutter_input_device_get_device_id (device),
|
|
previous_time);
|
|
|
|
device->click_count = click_count;
|
|
device->previous_x = previous_x;
|
|
device->previous_y = previous_y;
|
|
device->previous_time = previous_time;
|
|
device->previous_button_number = previous_button_number;
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
emit_event_chain (ClutterEvent *event)
|
|
{
|
|
static gboolean lock = FALSE;
|
|
|
|
if (event->any.source == NULL)
|
|
{
|
|
CLUTTER_NOTE (EVENT, "No source set, discarding event");
|
|
return;
|
|
}
|
|
|
|
/* reentrancy check */
|
|
if (lock != FALSE)
|
|
{
|
|
g_warning ("Tried emitting event during event delivery, bailing out.");
|
|
return;
|
|
}
|
|
|
|
lock = TRUE;
|
|
|
|
_clutter_actor_handle_event (event->any.source, event);
|
|
|
|
lock = FALSE;
|
|
}
|
|
|
|
/*
|
|
* Emits a pointer event after having prepared the event for delivery (setting
|
|
* source, computing click_count, generating enter/leave etc.).
|
|
*/
|
|
|
|
static inline void
|
|
emit_pointer_event (ClutterEvent *event,
|
|
ClutterInputDevice *device)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
if (_clutter_event_process_filters (event))
|
|
return;
|
|
|
|
if (context->pointer_grab_actor == NULL &&
|
|
(device == NULL || device->pointer_grab_actor == NULL))
|
|
{
|
|
/* no grab, time to capture and bubble */
|
|
emit_event_chain (event);
|
|
}
|
|
else
|
|
{
|
|
if (context->pointer_grab_actor != NULL)
|
|
{
|
|
/* global grab */
|
|
clutter_actor_event (context->pointer_grab_actor, event, FALSE);
|
|
}
|
|
else if (device != NULL && device->pointer_grab_actor != NULL)
|
|
{
|
|
/* per device grab */
|
|
clutter_actor_event (device->pointer_grab_actor, event, FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
emit_touch_event (ClutterEvent *event,
|
|
ClutterInputDevice *device)
|
|
{
|
|
ClutterActor *grab_actor = NULL;
|
|
|
|
if (_clutter_event_process_filters (event))
|
|
return;
|
|
|
|
if (device->sequence_grab_actors != NULL)
|
|
{
|
|
grab_actor = g_hash_table_lookup (device->sequence_grab_actors,
|
|
event->touch.sequence);
|
|
}
|
|
|
|
if (grab_actor != NULL)
|
|
{
|
|
/* per-device sequence grab */
|
|
clutter_actor_event (grab_actor, event, FALSE);
|
|
}
|
|
else
|
|
{
|
|
/* no grab, time to capture and bubble */
|
|
emit_event_chain (event);
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
emit_keyboard_event (ClutterEvent *event,
|
|
ClutterInputDevice *device)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
if (_clutter_event_process_filters (event))
|
|
return;
|
|
|
|
if (context->keyboard_grab_actor == NULL &&
|
|
(device == NULL || device->keyboard_grab_actor == NULL))
|
|
{
|
|
/* no grab, time to capture and bubble */
|
|
emit_event_chain (event);
|
|
}
|
|
else
|
|
{
|
|
if (context->keyboard_grab_actor != NULL)
|
|
{
|
|
/* global key grab */
|
|
clutter_actor_event (context->keyboard_grab_actor, event, FALSE);
|
|
}
|
|
else if (device != NULL && device->keyboard_grab_actor != NULL)
|
|
{
|
|
/* per-device key grab */
|
|
clutter_actor_event (context->keyboard_grab_actor, event, FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
is_off_stage (ClutterActor *stage,
|
|
gfloat x,
|
|
gfloat y)
|
|
{
|
|
gfloat width, height;
|
|
|
|
clutter_actor_get_size (stage, &width, &height);
|
|
|
|
return (x < 0 ||
|
|
y < 0 ||
|
|
x >= width ||
|
|
y >= height);
|
|
}
|
|
|
|
/**
|
|
* clutter_do_event:
|
|
* @event: a #ClutterEvent.
|
|
*
|
|
* Processes an event.
|
|
*
|
|
* The @event must be a valid #ClutterEvent and have a #ClutterStage
|
|
* associated to it.
|
|
*
|
|
* This function is only useful when embedding Clutter inside another
|
|
* toolkit, and it should never be called by applications.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
void
|
|
clutter_do_event (ClutterEvent *event)
|
|
{
|
|
/* we need the stage for the event */
|
|
if (event->any.stage == NULL)
|
|
{
|
|
g_warning ("%s: Event does not have a stage: discarding.", G_STRFUNC);
|
|
return;
|
|
}
|
|
|
|
/* stages in destruction do not process events */
|
|
if (CLUTTER_ACTOR_IN_DESTRUCTION (event->any.stage))
|
|
return;
|
|
|
|
/* Instead of processing events when received, we queue them up to
|
|
* handle per-frame before animations, layout, and drawing.
|
|
*
|
|
* This gives us the chance to reliably compress motion events
|
|
* because we've "looked ahead" and know all motion events that
|
|
* will occur before drawing the frame.
|
|
*/
|
|
_clutter_stage_queue_event (event->any.stage, event, TRUE);
|
|
}
|
|
|
|
static void
|
|
_clutter_process_event_details (ClutterActor *stage,
|
|
ClutterMainContext *context,
|
|
ClutterEvent *event)
|
|
{
|
|
ClutterInputDevice *device = clutter_event_get_device (event);
|
|
|
|
switch (event->type)
|
|
{
|
|
case CLUTTER_NOTHING:
|
|
event->any.source = stage;
|
|
break;
|
|
|
|
case CLUTTER_KEY_PRESS:
|
|
case CLUTTER_KEY_RELEASE:
|
|
{
|
|
ClutterActor *actor = NULL;
|
|
|
|
/* check that we're not a synthetic event with source set */
|
|
if (event->any.source == NULL)
|
|
{
|
|
actor = clutter_stage_get_key_focus (CLUTTER_STAGE (stage));
|
|
event->any.source = actor;
|
|
if (G_UNLIKELY (actor == NULL))
|
|
{
|
|
g_warning ("No key focus set, discarding");
|
|
return;
|
|
}
|
|
}
|
|
|
|
emit_keyboard_event (event, device);
|
|
}
|
|
break;
|
|
|
|
case CLUTTER_ENTER:
|
|
/* if we're entering from outside the stage we need
|
|
* to check whether the pointer is actually on another
|
|
* actor, and emit an additional pointer event
|
|
*/
|
|
if (event->any.source == stage &&
|
|
event->crossing.related == NULL)
|
|
{
|
|
ClutterActor *actor = NULL;
|
|
|
|
emit_pointer_event (event, device);
|
|
|
|
actor = _clutter_input_device_update (device, NULL, FALSE);
|
|
if (actor != stage)
|
|
{
|
|
ClutterEvent *crossing;
|
|
|
|
/* we emit the exact same event on the actor */
|
|
crossing = clutter_event_copy (event);
|
|
crossing->crossing.related = stage;
|
|
crossing->crossing.source = actor;
|
|
|
|
emit_pointer_event (crossing, device);
|
|
clutter_event_free (crossing);
|
|
}
|
|
}
|
|
else
|
|
emit_pointer_event (event, device);
|
|
break;
|
|
|
|
case CLUTTER_LEAVE:
|
|
/* same as CLUTTER_ENTER above: when leaving the stage
|
|
* we need to also emit a CLUTTER_LEAVE event on the
|
|
* actor currently underneath the device, unless it's the
|
|
* stage
|
|
*/
|
|
if (event->any.source == stage &&
|
|
event->crossing.related == NULL &&
|
|
device->cursor_actor != stage)
|
|
{
|
|
ClutterEvent *crossing;
|
|
|
|
crossing = clutter_event_copy (event);
|
|
crossing->crossing.related = stage;
|
|
crossing->crossing.source = device->cursor_actor;
|
|
|
|
emit_pointer_event (crossing, device);
|
|
clutter_event_free (crossing);
|
|
}
|
|
emit_pointer_event (event, device);
|
|
break;
|
|
|
|
case CLUTTER_DESTROY_NOTIFY:
|
|
case CLUTTER_DELETE:
|
|
event->any.source = stage;
|
|
|
|
if (_clutter_event_process_filters (event))
|
|
break;
|
|
|
|
/* the stage did not handle the event, so we just quit */
|
|
clutter_stage_event (CLUTTER_STAGE (stage), event);
|
|
break;
|
|
|
|
case CLUTTER_MOTION:
|
|
/* only the stage gets motion events if they are enabled */
|
|
if (!clutter_stage_get_motion_events_enabled (CLUTTER_STAGE (stage)) &&
|
|
event->any.source == NULL)
|
|
{
|
|
/* Only stage gets motion events */
|
|
event->any.source = stage;
|
|
|
|
if (_clutter_event_process_filters (event))
|
|
break;
|
|
|
|
/* global grabs */
|
|
if (context->pointer_grab_actor != NULL)
|
|
{
|
|
clutter_actor_event (context->pointer_grab_actor,
|
|
event,
|
|
FALSE);
|
|
break;
|
|
}
|
|
else if (device != NULL && device->pointer_grab_actor != NULL)
|
|
{
|
|
clutter_actor_event (device->pointer_grab_actor,
|
|
event,
|
|
FALSE);
|
|
break;
|
|
}
|
|
|
|
/* Trigger handlers on stage in both capture .. */
|
|
if (!clutter_actor_event (stage, event, TRUE))
|
|
{
|
|
/* and bubbling phase */
|
|
clutter_actor_event (stage, event, FALSE);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* fallthrough from motion */
|
|
case CLUTTER_BUTTON_PRESS:
|
|
case CLUTTER_BUTTON_RELEASE:
|
|
case CLUTTER_SCROLL:
|
|
{
|
|
ClutterActor *actor;
|
|
gfloat x, y;
|
|
|
|
clutter_event_get_coords (event, &x, &y);
|
|
|
|
/* Only do a pick to find the source if source is not already set
|
|
* (as it could be in a synthetic event)
|
|
*/
|
|
if (event->any.source == NULL)
|
|
{
|
|
/* emulate X11 the implicit soft grab; the implicit soft grab
|
|
* keeps relaying motion events when the stage is left with a
|
|
* pointer button pressed. since this is what happens when we
|
|
* disable per-actor motion events we need to maintain the same
|
|
* behaviour when the per-actor motion events are enabled as
|
|
* well
|
|
*/
|
|
if (is_off_stage (stage, x, y))
|
|
{
|
|
if (event->type == CLUTTER_BUTTON_RELEASE)
|
|
{
|
|
CLUTTER_NOTE (EVENT,
|
|
"Release off stage received at %.2f, %.2f",
|
|
x, y);
|
|
|
|
event->button.source = stage;
|
|
event->button.click_count = 1;
|
|
|
|
emit_pointer_event (event, device);
|
|
}
|
|
else if (event->type == CLUTTER_MOTION)
|
|
{
|
|
CLUTTER_NOTE (EVENT,
|
|
"Motion off stage received at %.2f, %2.f",
|
|
x, y);
|
|
|
|
event->motion.source = stage;
|
|
|
|
emit_pointer_event (event, device);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/* if the backend provides a device then we should
|
|
* already have everything we need to update it and
|
|
* get the actor underneath
|
|
*/
|
|
if (device != NULL)
|
|
actor = _clutter_input_device_update (device, NULL, TRUE);
|
|
else
|
|
{
|
|
CLUTTER_NOTE (EVENT, "No device found: picking");
|
|
|
|
actor = _clutter_stage_do_pick (CLUTTER_STAGE (stage),
|
|
x, y,
|
|
CLUTTER_PICK_REACTIVE);
|
|
}
|
|
|
|
if (actor == NULL)
|
|
break;
|
|
|
|
event->any.source = actor;
|
|
}
|
|
else
|
|
{
|
|
/* use the source already set in the synthetic event */
|
|
actor = event->any.source;
|
|
}
|
|
|
|
CLUTTER_NOTE (EVENT,
|
|
"Reactive event received at %.2f, %.2f - actor: %p",
|
|
x, y,
|
|
actor);
|
|
|
|
/* button presses and releases need a click count */
|
|
if (event->type == CLUTTER_BUTTON_PRESS ||
|
|
event->type == CLUTTER_BUTTON_RELEASE)
|
|
{
|
|
/* Generate click count */
|
|
event_click_count_generate (event);
|
|
}
|
|
|
|
emit_pointer_event (event, device);
|
|
break;
|
|
}
|
|
|
|
case CLUTTER_TOUCH_UPDATE:
|
|
/* only the stage gets motion events if they are enabled */
|
|
if (!clutter_stage_get_motion_events_enabled (CLUTTER_STAGE (stage)) &&
|
|
event->any.source == NULL)
|
|
{
|
|
ClutterActor *grab_actor = NULL;
|
|
|
|
/* Only stage gets motion events */
|
|
event->any.source = stage;
|
|
|
|
if (_clutter_event_process_filters (event))
|
|
break;
|
|
|
|
/* global grabs */
|
|
if (device->sequence_grab_actors != NULL)
|
|
{
|
|
grab_actor = g_hash_table_lookup (device->sequence_grab_actors,
|
|
event->touch.sequence);
|
|
}
|
|
|
|
if (grab_actor != NULL)
|
|
{
|
|
clutter_actor_event (grab_actor, event, FALSE);
|
|
break;
|
|
}
|
|
|
|
/* Trigger handlers on stage in both capture .. */
|
|
if (!clutter_actor_event (stage, event, TRUE))
|
|
{
|
|
/* and bubbling phase */
|
|
clutter_actor_event (stage, event, FALSE);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* fallthrough from motion */
|
|
case CLUTTER_TOUCH_BEGIN:
|
|
case CLUTTER_TOUCH_CANCEL:
|
|
case CLUTTER_TOUCH_END:
|
|
{
|
|
ClutterActor *actor;
|
|
ClutterEventSequence *sequence;
|
|
gfloat x, y;
|
|
|
|
sequence =
|
|
clutter_event_get_event_sequence (event);
|
|
|
|
if (event->type == CLUTTER_TOUCH_BEGIN)
|
|
_clutter_input_device_add_event_sequence (device, event);
|
|
|
|
clutter_event_get_coords (event, &x, &y);
|
|
|
|
/* Only do a pick to find the source if source is not already set
|
|
* (as it could be in a synthetic event)
|
|
*/
|
|
if (event->any.source == NULL)
|
|
{
|
|
/* same as the mouse events above, emulate the X11 implicit
|
|
* soft grab */
|
|
if (is_off_stage (stage, x, y))
|
|
{
|
|
CLUTTER_NOTE (EVENT,
|
|
"Touch %s off stage received at %.2f, %.2f",
|
|
event->type == CLUTTER_TOUCH_UPDATE ? "update" :
|
|
event->type == CLUTTER_TOUCH_END ? "end" :
|
|
event->type == CLUTTER_TOUCH_CANCEL ? "cancel" :
|
|
"?", x, y);
|
|
|
|
event->touch.source = stage;
|
|
|
|
emit_touch_event (event, device);
|
|
|
|
if (event->type == CLUTTER_TOUCH_END)
|
|
_clutter_input_device_remove_event_sequence (device, event);
|
|
|
|
break;
|
|
}
|
|
|
|
if (device != NULL)
|
|
actor = _clutter_input_device_update (device, sequence, TRUE);
|
|
else
|
|
{
|
|
CLUTTER_NOTE (EVENT, "No device found: picking");
|
|
|
|
actor = _clutter_stage_do_pick (CLUTTER_STAGE (stage),
|
|
x, y,
|
|
CLUTTER_PICK_REACTIVE);
|
|
}
|
|
|
|
if (actor == NULL)
|
|
break;
|
|
|
|
event->any.source = actor;
|
|
}
|
|
else
|
|
{
|
|
/* use the source already set in the synthetic event */
|
|
actor = event->any.source;
|
|
}
|
|
|
|
CLUTTER_NOTE (EVENT,
|
|
"Reactive event received at %.2f, %.2f - actor: %p",
|
|
x, y,
|
|
actor);
|
|
|
|
emit_touch_event (event, device);
|
|
|
|
if (event->type == CLUTTER_TOUCH_END)
|
|
_clutter_input_device_remove_event_sequence (device, event);
|
|
|
|
break;
|
|
}
|
|
|
|
case CLUTTER_STAGE_STATE:
|
|
/* fullscreen / focus - forward to stage */
|
|
event->any.source = stage;
|
|
if (!_clutter_event_process_filters (event))
|
|
clutter_stage_event (CLUTTER_STAGE (stage), event);
|
|
break;
|
|
|
|
case CLUTTER_CLIENT_MESSAGE:
|
|
break;
|
|
|
|
case CLUTTER_EVENT_LAST:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* _clutter_process_event
|
|
* @event: a #ClutterEvent.
|
|
*
|
|
* Does the actual work of processing an event that was queued earlier
|
|
* out of clutter_do_event().
|
|
*/
|
|
void
|
|
_clutter_process_event (ClutterEvent *event)
|
|
{
|
|
ClutterMainContext *context;
|
|
ClutterActor *stage;
|
|
|
|
context = _clutter_context_get_default ();
|
|
|
|
stage = CLUTTER_ACTOR (event->any.stage);
|
|
if (stage == NULL)
|
|
{
|
|
CLUTTER_NOTE (EVENT, "Discarding event without a stage set");
|
|
return;
|
|
}
|
|
|
|
/* push events on a stack, so that we don't need to
|
|
* add an event parameter to all signals that can be emitted within
|
|
* an event chain
|
|
*/
|
|
context->current_event = g_slist_prepend (context->current_event, event);
|
|
|
|
_clutter_process_event_details (stage, context, event);
|
|
|
|
context->current_event = g_slist_delete_link (context->current_event, context->current_event);
|
|
}
|
|
|
|
/**
|
|
* clutter_get_actor_by_gid:
|
|
* @id_: a #ClutterActor unique id.
|
|
*
|
|
* Retrieves the #ClutterActor with @id_.
|
|
*
|
|
* Return value: (transfer none): the actor with the passed id or %NULL.
|
|
* The returned actor does not have its reference count increased.
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.8: The id is deprecated, and this function always returns
|
|
* %NULL. Use the proper scene graph API in #ClutterActor to find a child
|
|
* of the stage.
|
|
*/
|
|
ClutterActor *
|
|
clutter_get_actor_by_gid (guint32 id_)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
clutter_base_init (void)
|
|
{
|
|
static gboolean initialised = FALSE;
|
|
|
|
if (!initialised)
|
|
{
|
|
initialised = TRUE;
|
|
|
|
bindtextdomain (GETTEXT_PACKAGE, CLUTTER_LOCALEDIR);
|
|
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
|
|
|
|
#if !GLIB_CHECK_VERSION (2, 35, 1)
|
|
/* initialise GLib type system */
|
|
g_type_init ();
|
|
#endif
|
|
|
|
/* initialise the Big Clutter Lock™ if necessary */
|
|
clutter_threads_init_default ();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_get_default_frame_rate:
|
|
*
|
|
* Retrieves the default frame rate. See clutter_set_default_frame_rate().
|
|
*
|
|
* Return value: the default frame rate
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
guint
|
|
clutter_get_default_frame_rate (void)
|
|
{
|
|
ClutterMainContext *context;
|
|
|
|
context = _clutter_context_get_default ();
|
|
|
|
return context->frame_rate;
|
|
}
|
|
|
|
/**
|
|
* clutter_set_default_frame_rate:
|
|
* @frames_per_sec: the new default frame rate
|
|
*
|
|
* Sets the default frame rate. This frame rate will be used to limit
|
|
* the number of frames drawn if Clutter is not able to synchronize
|
|
* with the vertical refresh rate of the display. When synchronization
|
|
* is possible, this value is ignored.
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.10: This function does not do anything any more.
|
|
*/
|
|
void
|
|
clutter_set_default_frame_rate (guint frames_per_sec)
|
|
{
|
|
}
|
|
|
|
static void
|
|
on_grab_actor_destroy (ClutterActor *actor,
|
|
ClutterInputDevice *device)
|
|
{
|
|
if (device == NULL)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
if (context->pointer_grab_actor == actor)
|
|
clutter_ungrab_pointer ();
|
|
|
|
if (context->keyboard_grab_actor == actor)
|
|
clutter_ungrab_keyboard ();
|
|
|
|
return;
|
|
}
|
|
|
|
switch (device->device_type)
|
|
{
|
|
case CLUTTER_POINTER_DEVICE:
|
|
device->pointer_grab_actor = NULL;
|
|
break;
|
|
|
|
case CLUTTER_KEYBOARD_DEVICE:
|
|
device->keyboard_grab_actor = NULL;
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_grab_pointer:
|
|
* @actor: a #ClutterActor
|
|
*
|
|
* Grabs pointer events, after the grab is done all pointer related events
|
|
* (press, motion, release, enter, leave and scroll) are delivered to this
|
|
* actor directly without passing through both capture and bubble phases of
|
|
* the event delivery chain. The source set in the event will be the actor
|
|
* that would have received the event if the pointer grab was not in effect.
|
|
*
|
|
* Grabs completely override the entire event delivery chain
|
|
* done by Clutter. Pointer grabs should only be used as a last resource;
|
|
* using the #ClutterActor::captured-event signal should always be the
|
|
* preferred way to intercept event delivery to reactive actors.
|
|
*
|
|
* This function should rarely be used.
|
|
*
|
|
* If a grab is required, you are strongly encouraged to use a specific
|
|
* input device by calling clutter_input_device_grab().
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
void
|
|
clutter_grab_pointer (ClutterActor *actor)
|
|
{
|
|
ClutterMainContext *context;
|
|
|
|
g_return_if_fail (actor == NULL || CLUTTER_IS_ACTOR (actor));
|
|
|
|
context = _clutter_context_get_default ();
|
|
|
|
if (context->pointer_grab_actor == actor)
|
|
return;
|
|
|
|
if (context->pointer_grab_actor != NULL)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (context->pointer_grab_actor,
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
NULL);
|
|
context->pointer_grab_actor = NULL;
|
|
}
|
|
|
|
if (actor != NULL)
|
|
{
|
|
context->pointer_grab_actor = actor;
|
|
|
|
g_signal_connect (context->pointer_grab_actor, "destroy",
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_input_device_grab:
|
|
* @device: a #ClutterInputDevice
|
|
* @actor: a #ClutterActor
|
|
*
|
|
* Acquires a grab on @actor for the given @device.
|
|
*
|
|
* Any event coming from @device will be delivered to @actor, bypassing
|
|
* the usual event delivery mechanism, until the grab is released by
|
|
* calling clutter_input_device_ungrab().
|
|
*
|
|
* The grab is client-side: even if the windowing system used by the Clutter
|
|
* backend has the concept of "device grabs", Clutter will not use them.
|
|
*
|
|
* Only #ClutterInputDevice of types %CLUTTER_POINTER_DEVICE and
|
|
* %CLUTTER_KEYBOARD_DEVICE can hold a grab.
|
|
*
|
|
* Since: 1.10
|
|
*/
|
|
void
|
|
clutter_input_device_grab (ClutterInputDevice *device,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterActor **grab_actor;
|
|
|
|
g_return_if_fail (CLUTTER_IS_INPUT_DEVICE (device));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
switch (device->device_type)
|
|
{
|
|
case CLUTTER_POINTER_DEVICE:
|
|
grab_actor = &(device->pointer_grab_actor);
|
|
break;
|
|
|
|
case CLUTTER_KEYBOARD_DEVICE:
|
|
grab_actor = &(device->keyboard_grab_actor);
|
|
break;
|
|
|
|
default:
|
|
g_critical ("Only pointer and keyboard devices can grab an actor");
|
|
return;
|
|
}
|
|
|
|
if (*grab_actor != NULL)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (*grab_actor,
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
device);
|
|
}
|
|
|
|
*grab_actor = actor;
|
|
|
|
g_signal_connect (*grab_actor,
|
|
"destroy",
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
device);
|
|
}
|
|
|
|
/**
|
|
* clutter_input_device_ungrab:
|
|
* @device: a #ClutterInputDevice
|
|
*
|
|
* Releases the grab on the @device, if one is in place.
|
|
*
|
|
* Since: 1.10
|
|
*/
|
|
void
|
|
clutter_input_device_ungrab (ClutterInputDevice *device)
|
|
{
|
|
ClutterActor **grab_actor;
|
|
|
|
g_return_if_fail (CLUTTER_IS_INPUT_DEVICE (device));
|
|
|
|
switch (device->device_type)
|
|
{
|
|
case CLUTTER_POINTER_DEVICE:
|
|
grab_actor = &(device->pointer_grab_actor);
|
|
break;
|
|
|
|
case CLUTTER_KEYBOARD_DEVICE:
|
|
grab_actor = &(device->keyboard_grab_actor);
|
|
break;
|
|
|
|
default:
|
|
return;
|
|
}
|
|
|
|
if (*grab_actor == NULL)
|
|
return;
|
|
|
|
g_signal_handlers_disconnect_by_func (*grab_actor,
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
device);
|
|
|
|
*grab_actor = NULL;
|
|
}
|
|
|
|
/**
|
|
* clutter_input_device_get_grabbed_actor:
|
|
* @device: a #ClutterInputDevice
|
|
*
|
|
* Retrieves a pointer to the #ClutterActor currently grabbing all
|
|
* the events coming from @device.
|
|
*
|
|
* Return value: (transfer none): a #ClutterActor, or %NULL
|
|
*
|
|
* Since: 1.10
|
|
*/
|
|
ClutterActor *
|
|
clutter_input_device_get_grabbed_actor (ClutterInputDevice *device)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), NULL);
|
|
|
|
switch (device->device_type)
|
|
{
|
|
case CLUTTER_POINTER_DEVICE:
|
|
return device->pointer_grab_actor;
|
|
|
|
case CLUTTER_KEYBOARD_DEVICE:
|
|
return device->keyboard_grab_actor;
|
|
|
|
default:
|
|
g_critical ("Only pointer and keyboard devices can grab an actor");
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* clutter_grab_pointer_for_device:
|
|
* @actor: a #ClutterActor
|
|
* @id_: a device id, or -1
|
|
*
|
|
* Grabs all the pointer events coming from the device @id for @actor.
|
|
*
|
|
* If @id is -1 then this function is equivalent to clutter_grab_pointer().
|
|
*
|
|
* Since: 0.8
|
|
*
|
|
* Deprecated: 1.10: Use clutter_input_device_grab() instead.
|
|
*/
|
|
void
|
|
clutter_grab_pointer_for_device (ClutterActor *actor,
|
|
gint id_)
|
|
{
|
|
ClutterDeviceManager *manager;
|
|
ClutterInputDevice *dev;
|
|
|
|
g_return_if_fail (actor == NULL || CLUTTER_IS_ACTOR (actor));
|
|
|
|
/* essentially a global grab */
|
|
if (id_ == -1)
|
|
{
|
|
if (actor == NULL)
|
|
clutter_ungrab_pointer ();
|
|
else
|
|
clutter_grab_pointer (actor);
|
|
|
|
return;
|
|
}
|
|
|
|
manager = clutter_device_manager_get_default ();
|
|
if (manager == NULL)
|
|
return;
|
|
|
|
dev = clutter_device_manager_get_device (manager, id_);
|
|
if (dev == NULL)
|
|
return;
|
|
|
|
if (dev->device_type != CLUTTER_POINTER_DEVICE)
|
|
return;
|
|
|
|
if (actor == NULL)
|
|
clutter_input_device_ungrab (dev);
|
|
else
|
|
clutter_input_device_grab (dev, actor);
|
|
}
|
|
|
|
|
|
/**
|
|
* clutter_ungrab_pointer:
|
|
*
|
|
* Removes an existing grab of the pointer.
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
void
|
|
clutter_ungrab_pointer (void)
|
|
{
|
|
clutter_grab_pointer (NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_ungrab_pointer_for_device:
|
|
* @id_: a device id
|
|
*
|
|
* Removes an existing grab of the pointer events for device @id_.
|
|
*
|
|
* Since: 0.8
|
|
*
|
|
* Deprecated: 1.10: Use clutter_input_device_ungrab() instead.
|
|
*/
|
|
void
|
|
clutter_ungrab_pointer_for_device (gint id_)
|
|
{
|
|
ClutterDeviceManager *manager;
|
|
ClutterInputDevice *device;
|
|
|
|
manager = clutter_device_manager_get_default ();
|
|
if (manager == NULL)
|
|
return;
|
|
|
|
device = clutter_device_manager_get_device (manager, id_);
|
|
if (device != NULL)
|
|
clutter_input_device_ungrab (device);
|
|
}
|
|
|
|
|
|
/**
|
|
* clutter_get_pointer_grab:
|
|
*
|
|
* Queries the current pointer grab of clutter.
|
|
*
|
|
* Return value: (transfer none): the actor currently holding the pointer grab, or NULL if there is no grab.
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
ClutterActor *
|
|
clutter_get_pointer_grab (void)
|
|
{
|
|
ClutterMainContext *context;
|
|
context = _clutter_context_get_default ();
|
|
|
|
return context->pointer_grab_actor;
|
|
}
|
|
|
|
|
|
/**
|
|
* clutter_grab_keyboard:
|
|
* @actor: a #ClutterActor
|
|
*
|
|
* Grabs keyboard events, after the grab is done keyboard
|
|
* events (#ClutterActor::key-press-event and #ClutterActor::key-release-event)
|
|
* are delivered to this actor directly. The source set in the event will be
|
|
* the actor that would have received the event if the keyboard grab was not
|
|
* in effect.
|
|
*
|
|
* Like pointer grabs, keyboard grabs should only be used as a last
|
|
* resource.
|
|
*
|
|
* See also clutter_stage_set_key_focus() and clutter_actor_grab_key_focus()
|
|
* to perform a "soft" key grab and assign key focus to a specific actor.
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
void
|
|
clutter_grab_keyboard (ClutterActor *actor)
|
|
{
|
|
ClutterMainContext *context;
|
|
|
|
g_return_if_fail (actor == NULL || CLUTTER_IS_ACTOR (actor));
|
|
|
|
context = _clutter_context_get_default ();
|
|
|
|
if (context->keyboard_grab_actor == actor)
|
|
return;
|
|
|
|
if (context->keyboard_grab_actor != NULL)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (context->keyboard_grab_actor,
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
NULL);
|
|
context->keyboard_grab_actor = NULL;
|
|
}
|
|
|
|
if (actor != NULL)
|
|
{
|
|
context->keyboard_grab_actor = actor;
|
|
|
|
g_signal_connect (context->keyboard_grab_actor, "destroy",
|
|
G_CALLBACK (on_grab_actor_destroy),
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_ungrab_keyboard:
|
|
*
|
|
* Removes an existing grab of the keyboard.
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
void
|
|
clutter_ungrab_keyboard (void)
|
|
{
|
|
clutter_grab_keyboard (NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_get_keyboard_grab:
|
|
*
|
|
* Queries the current keyboard grab of clutter.
|
|
*
|
|
* Return value: (transfer none): the actor currently holding the keyboard grab, or NULL if there is no grab.
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
ClutterActor *
|
|
clutter_get_keyboard_grab (void)
|
|
{
|
|
ClutterMainContext *context;
|
|
|
|
context = _clutter_context_get_default ();
|
|
|
|
return context->keyboard_grab_actor;
|
|
}
|
|
|
|
/**
|
|
* clutter_clear_glyph_cache:
|
|
*
|
|
* Clears the internal cache of glyphs used by the Pango
|
|
* renderer. This will free up some memory and GL texture
|
|
* resources. The cache will be automatically refilled as more text is
|
|
* drawn.
|
|
*
|
|
* Since: 0.8
|
|
*
|
|
* Deprecated: 1.10: Use clutter_get_font_map() and
|
|
* cogl_pango_font_map_clear_glyph_cache() instead.
|
|
*/
|
|
void
|
|
clutter_clear_glyph_cache (void)
|
|
{
|
|
CoglPangoFontMap *font_map;
|
|
|
|
font_map = clutter_context_get_pango_fontmap ();
|
|
cogl_pango_font_map_clear_glyph_cache (font_map);
|
|
}
|
|
|
|
/**
|
|
* clutter_set_font_flags:
|
|
* @flags: The new flags
|
|
*
|
|
* Sets the font quality options for subsequent text rendering
|
|
* operations.
|
|
*
|
|
* Using mipmapped textures will improve the quality for scaled down
|
|
* text but will use more texture memory.
|
|
*
|
|
* Enabling hinting improves text quality for static text but may
|
|
* introduce some artifacts if the text is animated.
|
|
*
|
|
* Since: 1.0
|
|
*
|
|
* Deprecated: 1.10: Use clutter_backend_set_font_options() and the
|
|
* #cairo_font_option_t API.
|
|
*/
|
|
void
|
|
clutter_set_font_flags (ClutterFontFlags flags)
|
|
{
|
|
CoglPangoFontMap *font_map;
|
|
ClutterFontFlags old_flags, changed_flags;
|
|
const cairo_font_options_t *font_options;
|
|
cairo_font_options_t *new_font_options;
|
|
cairo_hint_style_t hint_style;
|
|
gboolean use_mipmapping;
|
|
ClutterBackend *backend;
|
|
|
|
backend = clutter_get_default_backend ();
|
|
font_map = clutter_context_get_pango_fontmap ();
|
|
font_options = clutter_backend_get_font_options (backend);
|
|
old_flags = 0;
|
|
|
|
if (cogl_pango_font_map_get_use_mipmapping (font_map))
|
|
old_flags |= CLUTTER_FONT_MIPMAPPING;
|
|
|
|
hint_style = cairo_font_options_get_hint_style (font_options);
|
|
if (hint_style != CAIRO_HINT_STYLE_DEFAULT &&
|
|
hint_style != CAIRO_HINT_STYLE_NONE)
|
|
old_flags |= CLUTTER_FONT_HINTING;
|
|
|
|
if (old_flags == flags)
|
|
return;
|
|
|
|
new_font_options = cairo_font_options_copy (font_options);
|
|
|
|
/* Only set the font options that have actually changed so we don't
|
|
override a detailed setting from the backend */
|
|
changed_flags = old_flags ^ flags;
|
|
|
|
if ((changed_flags & CLUTTER_FONT_MIPMAPPING))
|
|
{
|
|
use_mipmapping = (changed_flags & CLUTTER_FONT_MIPMAPPING) != 0;
|
|
|
|
cogl_pango_font_map_set_use_mipmapping (font_map, use_mipmapping);
|
|
}
|
|
|
|
if ((changed_flags & CLUTTER_FONT_HINTING))
|
|
{
|
|
hint_style = (flags & CLUTTER_FONT_HINTING)
|
|
? CAIRO_HINT_STYLE_FULL
|
|
: CAIRO_HINT_STYLE_NONE;
|
|
|
|
cairo_font_options_set_hint_style (new_font_options, hint_style);
|
|
}
|
|
|
|
clutter_backend_set_font_options (backend, new_font_options);
|
|
|
|
cairo_font_options_destroy (new_font_options);
|
|
}
|
|
|
|
/**
|
|
* clutter_get_font_flags:
|
|
*
|
|
* Gets the current font flags for rendering text. See
|
|
* clutter_set_font_flags().
|
|
*
|
|
* Return value: The font flags
|
|
*
|
|
* Since: 1.0
|
|
*
|
|
* Deprecated: 1.10: Use clutter_backend_get_font_options() and the
|
|
* #cairo_font_options_t API.
|
|
*/
|
|
ClutterFontFlags
|
|
clutter_get_font_flags (void)
|
|
{
|
|
CoglPangoFontMap *font_map = NULL;
|
|
const cairo_font_options_t *font_options;
|
|
ClutterFontFlags flags = 0;
|
|
cairo_hint_style_t hint_style;
|
|
|
|
font_map = clutter_context_get_pango_fontmap ();
|
|
if (cogl_pango_font_map_get_use_mipmapping (font_map))
|
|
flags |= CLUTTER_FONT_MIPMAPPING;
|
|
|
|
font_options =
|
|
clutter_backend_get_font_options (clutter_get_default_backend ());
|
|
|
|
hint_style = cairo_font_options_get_hint_style (font_options);
|
|
if (hint_style != CAIRO_HINT_STYLE_DEFAULT &&
|
|
hint_style != CAIRO_HINT_STYLE_NONE)
|
|
flags |= CLUTTER_FONT_HINTING;
|
|
|
|
return flags;
|
|
}
|
|
|
|
/**
|
|
* clutter_get_input_device_for_id:
|
|
* @id_: the unique id for a device
|
|
*
|
|
* Retrieves the #ClutterInputDevice from its @id_. This is a convenience
|
|
* wrapper for clutter_device_manager_get_device() and it is functionally
|
|
* equivalent to:
|
|
*
|
|
* |[
|
|
* ClutterDeviceManager *manager;
|
|
* ClutterInputDevice *device;
|
|
*
|
|
* manager = clutter_device_manager_get_default ();
|
|
* device = clutter_device_manager_get_device (manager, id);
|
|
* ]|
|
|
*
|
|
* Return value: (transfer none): a #ClutterInputDevice, or %NULL
|
|
*
|
|
* Since: 0.8
|
|
*
|
|
* Deprecated: 1.10: Use clutter_device_manager_get_device() instead.
|
|
*/
|
|
ClutterInputDevice *
|
|
clutter_get_input_device_for_id (gint id_)
|
|
{
|
|
ClutterDeviceManager *manager;
|
|
|
|
manager = clutter_device_manager_get_default ();
|
|
if (manager == NULL)
|
|
return NULL;
|
|
|
|
return clutter_device_manager_get_device (manager, id_);
|
|
}
|
|
|
|
/**
|
|
* clutter_get_font_map:
|
|
*
|
|
* Retrieves the #PangoFontMap instance used by Clutter.
|
|
* You can use the global font map object with the COGL
|
|
* Pango API.
|
|
*
|
|
* Return value: (transfer none): the #PangoFontMap instance. The returned
|
|
* value is owned by Clutter and it should never be unreferenced.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
PangoFontMap *
|
|
clutter_get_font_map (void)
|
|
{
|
|
return PANGO_FONT_MAP (clutter_context_get_pango_fontmap ());
|
|
}
|
|
|
|
typedef struct _ClutterRepaintFunction
|
|
{
|
|
guint id;
|
|
ClutterRepaintFlags flags;
|
|
GSourceFunc func;
|
|
gpointer data;
|
|
GDestroyNotify notify;
|
|
} ClutterRepaintFunction;
|
|
|
|
/**
|
|
* clutter_threads_remove_repaint_func:
|
|
* @handle_id: an unsigned integer greater than zero
|
|
*
|
|
* Removes the repaint function with @handle_id as its id
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_threads_remove_repaint_func (guint handle_id)
|
|
{
|
|
ClutterRepaintFunction *repaint_func;
|
|
ClutterMainContext *context;
|
|
GList *l;
|
|
|
|
g_return_if_fail (handle_id > 0);
|
|
|
|
_clutter_context_lock ();
|
|
|
|
context = clutter_context_get_default_unlocked ();
|
|
l = context->repaint_funcs;
|
|
while (l != NULL)
|
|
{
|
|
repaint_func = l->data;
|
|
|
|
if (repaint_func->id == handle_id)
|
|
{
|
|
context->repaint_funcs =
|
|
g_list_remove_link (context->repaint_funcs, l);
|
|
|
|
g_list_free (l);
|
|
|
|
if (repaint_func->notify)
|
|
repaint_func->notify (repaint_func->data);
|
|
|
|
g_slice_free (ClutterRepaintFunction, repaint_func);
|
|
|
|
break;
|
|
}
|
|
|
|
l = l->next;
|
|
}
|
|
|
|
_clutter_context_unlock ();
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_add_repaint_func:
|
|
* @func: the function to be called within the paint cycle
|
|
* @data: data to be passed to the function, or %NULL
|
|
* @notify: function to be called when removing the repaint
|
|
* function, or %NULL
|
|
*
|
|
* Adds a function to be called whenever Clutter is processing a new
|
|
* frame.
|
|
*
|
|
* If the function returns %FALSE it is automatically removed from the
|
|
* list of repaint functions and will not be called again.
|
|
*
|
|
* This function is guaranteed to be called from within the same thread
|
|
* that called clutter_main(), and while the Clutter lock is being held;
|
|
* the function will be called within the main loop, so it is imperative
|
|
* that it does not block, otherwise the frame time budget may be lost.
|
|
*
|
|
* A repaint function is useful to ensure that an update of the scenegraph
|
|
* is performed before the scenegraph is repainted; for instance, uploading
|
|
* a frame from a video into a #ClutterTexture. By default, a repaint
|
|
* function added using this function will be invoked prior to the frame
|
|
* being processed.
|
|
*
|
|
* Adding a repaint function does not automatically ensure that a new
|
|
* frame will be queued.
|
|
*
|
|
* When the repaint function is removed (either because it returned %FALSE
|
|
* or because clutter_threads_remove_repaint_func() has been called) the
|
|
* @notify function will be called, if any is set.
|
|
*
|
|
* See also: clutter_threads_add_repaint_func_full()
|
|
*
|
|
* Return value: the ID (greater than 0) of the repaint function. You
|
|
* can use the returned integer to remove the repaint function by
|
|
* calling clutter_threads_remove_repaint_func().
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
guint
|
|
clutter_threads_add_repaint_func (GSourceFunc func,
|
|
gpointer data,
|
|
GDestroyNotify notify)
|
|
{
|
|
return clutter_threads_add_repaint_func_full (CLUTTER_REPAINT_FLAGS_PRE_PAINT,
|
|
func,
|
|
data, notify);
|
|
}
|
|
|
|
/**
|
|
* clutter_threads_add_repaint_func_full:
|
|
* @flags: flags for the repaint function
|
|
* @func: the function to be called within the paint cycle
|
|
* @data: data to be passed to the function, or %NULL
|
|
* @notify: function to be called when removing the repaint
|
|
* function, or %NULL
|
|
*
|
|
* Adds a function to be called whenever Clutter is processing a new
|
|
* frame.
|
|
*
|
|
* If the function returns %FALSE it is automatically removed from the
|
|
* list of repaint functions and will not be called again.
|
|
*
|
|
* This function is guaranteed to be called from within the same thread
|
|
* that called clutter_main(), and while the Clutter lock is being held;
|
|
* the function will be called within the main loop, so it is imperative
|
|
* that it does not block, otherwise the frame time budget may be lost.
|
|
*
|
|
* A repaint function is useful to ensure that an update of the scenegraph
|
|
* is performed before the scenegraph is repainted; for instance, uploading
|
|
* a frame from a video into a #ClutterTexture. The @flags passed to this
|
|
* function will determine the section of the frame processing that will
|
|
* result in @func being called.
|
|
*
|
|
* Adding a repaint function does not automatically ensure that a new
|
|
* frame will be queued.
|
|
*
|
|
* When the repaint function is removed (either because it returned %FALSE
|
|
* or because clutter_threads_remove_repaint_func() has been called) the
|
|
* @notify function will be called, if any is set.
|
|
*
|
|
* Return value: the ID (greater than 0) of the repaint function. You
|
|
* can use the returned integer to remove the repaint function by
|
|
* calling clutter_threads_remove_repaint_func().
|
|
*
|
|
* Since: 1.10
|
|
*/
|
|
guint
|
|
clutter_threads_add_repaint_func_full (ClutterRepaintFlags flags,
|
|
GSourceFunc func,
|
|
gpointer data,
|
|
GDestroyNotify notify)
|
|
{
|
|
ClutterMainContext *context;
|
|
ClutterRepaintFunction *repaint_func;
|
|
|
|
g_return_val_if_fail (func != NULL, 0);
|
|
|
|
_clutter_context_lock ();
|
|
|
|
context = clutter_context_get_default_unlocked ();
|
|
|
|
repaint_func = g_slice_new (ClutterRepaintFunction);
|
|
|
|
repaint_func->id = context->last_repaint_id++;
|
|
|
|
/* mask out QUEUE_REDRAW_ON_ADD, since we're going to consume it */
|
|
repaint_func->flags = flags & ~CLUTTER_REPAINT_FLAGS_QUEUE_REDRAW_ON_ADD;
|
|
repaint_func->func = func;
|
|
repaint_func->data = data;
|
|
repaint_func->notify = notify;
|
|
|
|
context->repaint_funcs = g_list_prepend (context->repaint_funcs,
|
|
repaint_func);
|
|
|
|
_clutter_context_unlock ();
|
|
|
|
if ((flags & CLUTTER_REPAINT_FLAGS_QUEUE_REDRAW_ON_ADD) != 0)
|
|
{
|
|
ClutterMasterClock *master_clock = _clutter_master_clock_get_default ();
|
|
|
|
_clutter_master_clock_ensure_next_iteration (master_clock);
|
|
}
|
|
|
|
return repaint_func->id;
|
|
}
|
|
|
|
/*
|
|
* _clutter_run_repaint_functions:
|
|
* @flags: only run the repaint functions matching the passed flags
|
|
*
|
|
* Executes the repaint functions added using the
|
|
* clutter_threads_add_repaint_func() function.
|
|
*
|
|
* Must be called with the Clutter thread lock held.
|
|
*/
|
|
void
|
|
_clutter_run_repaint_functions (ClutterRepaintFlags flags)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
ClutterRepaintFunction *repaint_func;
|
|
GList *invoke_list, *reinvoke_list, *l;
|
|
|
|
if (context->repaint_funcs == NULL)
|
|
return;
|
|
|
|
/* steal the list */
|
|
invoke_list = context->repaint_funcs;
|
|
context->repaint_funcs = NULL;
|
|
|
|
reinvoke_list = NULL;
|
|
|
|
/* consume the whole list while we execute the functions */
|
|
while (invoke_list != NULL)
|
|
{
|
|
gboolean res = FALSE;
|
|
|
|
repaint_func = invoke_list->data;
|
|
|
|
l = invoke_list;
|
|
invoke_list = g_list_remove_link (invoke_list, invoke_list);
|
|
|
|
g_list_free (l);
|
|
|
|
if ((repaint_func->flags & flags) != 0)
|
|
res = repaint_func->func (repaint_func->data);
|
|
else
|
|
res = TRUE;
|
|
|
|
if (res)
|
|
reinvoke_list = g_list_prepend (reinvoke_list, repaint_func);
|
|
else
|
|
{
|
|
if (repaint_func->notify != NULL)
|
|
repaint_func->notify (repaint_func->data);
|
|
|
|
g_slice_free (ClutterRepaintFunction, repaint_func);
|
|
}
|
|
}
|
|
|
|
if (context->repaint_funcs != NULL)
|
|
{
|
|
context->repaint_funcs = g_list_concat (context->repaint_funcs,
|
|
g_list_reverse (reinvoke_list));
|
|
}
|
|
else
|
|
context->repaint_funcs = g_list_reverse (reinvoke_list);
|
|
}
|
|
|
|
/**
|
|
* clutter_check_version:
|
|
* @major: major version, like 1 in 1.2.3
|
|
* @minor: minor version, like 2 in 1.2.3
|
|
* @micro: micro version, like 3 in 1.2.3
|
|
*
|
|
* Run-time version check, to check the version the Clutter library
|
|
* that an application is currently linked against
|
|
*
|
|
* This is the run-time equivalent of the compile-time %CLUTTER_CHECK_VERSION
|
|
* pre-processor macro
|
|
*
|
|
* Return value: %TRUE if the version of the Clutter library is
|
|
* greater than (@major, @minor, @micro), and %FALSE otherwise
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
gboolean
|
|
clutter_check_version (guint major,
|
|
guint minor,
|
|
guint micro)
|
|
{
|
|
return (clutter_major_version > major ||
|
|
(clutter_major_version == major &&
|
|
clutter_minor_version > minor) ||
|
|
(clutter_major_version == major &&
|
|
clutter_minor_version == minor &&
|
|
clutter_micro_version >= micro));
|
|
}
|
|
|
|
/**
|
|
* clutter_get_default_text_direction:
|
|
*
|
|
* Retrieves the default direction for the text. The text direction is
|
|
* determined by the locale and/or by the <varname>CLUTTER_TEXT_DIRECTION</varname>
|
|
* environment variable.
|
|
*
|
|
* The default text direction can be overridden on a per-actor basis by using
|
|
* clutter_actor_set_text_direction().
|
|
*
|
|
* Return value: the default text direction
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
ClutterTextDirection
|
|
clutter_get_default_text_direction (void)
|
|
{
|
|
return clutter_text_direction;
|
|
}
|
|
|
|
/*< private >
|
|
* clutter_clear_events_queue:
|
|
*
|
|
* Clears the events queue stored in the main context.
|
|
*/
|
|
void
|
|
_clutter_clear_events_queue (void)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
if (context->events_queue != NULL)
|
|
{
|
|
g_queue_foreach (context->events_queue,
|
|
(GFunc) clutter_event_free,
|
|
NULL);
|
|
g_queue_free (context->events_queue);
|
|
context->events_queue = NULL;
|
|
}
|
|
}
|
|
|
|
void
|
|
_clutter_clear_events_queue_for_stage (ClutterStage *stage)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
GList *l, *next;
|
|
|
|
if (context->events_queue == NULL)
|
|
return;
|
|
|
|
/* Remove any pending events for this stage from the event queue */
|
|
for (l = context->events_queue->head; l; l = next)
|
|
{
|
|
ClutterEvent *event = l->data;
|
|
|
|
next = l->next;
|
|
|
|
if (event->any.stage == stage)
|
|
{
|
|
g_queue_delete_link (context->events_queue, l);
|
|
clutter_event_free (event);
|
|
}
|
|
}
|
|
}
|
|
|
|
ClutterPickMode
|
|
_clutter_context_get_pick_mode (void)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
return context->pick_mode;
|
|
}
|
|
|
|
void
|
|
_clutter_context_push_shader_stack (ClutterActor *actor)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
context->shaders = g_slist_prepend (context->shaders, actor);
|
|
}
|
|
|
|
ClutterActor *
|
|
_clutter_context_peek_shader_stack (void)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
if (context->shaders != NULL)
|
|
return context->shaders->data;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
ClutterActor *
|
|
_clutter_context_pop_shader_stack (ClutterActor *actor)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
context->shaders = g_slist_remove (context->shaders, actor);
|
|
|
|
return _clutter_context_peek_shader_stack ();
|
|
}
|
|
|
|
gboolean
|
|
_clutter_context_get_motion_events_enabled (void)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
return context->motion_events_per_actor;
|
|
}
|
|
|
|
/**
|
|
* clutter_check_windowing_backend:
|
|
* @backend_type: the name of the backend to check
|
|
*
|
|
* Checks the run-time name of the Clutter windowing system backend, using
|
|
* the symbolic macros like %CLUTTER_WINDOWING_WIN32 or
|
|
* %CLUTTER_WINDOWING_X11.
|
|
*
|
|
* This function should be used in conjuction with the compile-time macros
|
|
* inside applications and libraries that are using the platform-specific
|
|
* windowing system API, to ensure that they are running on the correct
|
|
* windowing system; for instance:
|
|
*
|
|
* |[
|
|
* #ifdef CLUTTER_WINDOWING_X11
|
|
* if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11))
|
|
* {
|
|
* // it is safe to use the clutter_x11_* API
|
|
* }
|
|
* else
|
|
* #endif
|
|
* #ifdef CLUTTER_WINDOWING_WIN32
|
|
* if (clutter_check_windowing_backend (CLUTTER_WINDOWING_WIN32))
|
|
* {
|
|
* // it is safe to use the clutter_win32_* API
|
|
* }
|
|
* else
|
|
* #endif
|
|
* g_error ("Unknown Clutter backend.");
|
|
* ]|
|
|
*
|
|
* Return value: %TRUE if the current Clutter windowing system backend is
|
|
* the one checked, and %FALSE otherwise
|
|
*
|
|
* Since: 1.10
|
|
*/
|
|
gboolean
|
|
clutter_check_windowing_backend (const char *backend_type)
|
|
{
|
|
ClutterMainContext *context = _clutter_context_get_default ();
|
|
|
|
g_return_val_if_fail (backend_type != NULL, FALSE);
|
|
|
|
backend_type = g_intern_string (backend_type);
|
|
|
|
#ifdef CLUTTER_WINDOWING_OSX
|
|
if (backend_type == I_(CLUTTER_WINDOWING_OSX) &&
|
|
CLUTTER_IS_BACKEND_OSX (context->backend))
|
|
return TRUE;
|
|
else
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_WIN32
|
|
if (backend_type == I_(CLUTTER_WINDOWING_WIN32) &&
|
|
CLUTTER_IS_BACKEND_WIN32 (context->backend))
|
|
return TRUE;
|
|
else
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_WAYLAND
|
|
if (backend_type == I_(CLUTTER_WINDOWING_WAYLAND) &&
|
|
CLUTTER_IS_BACKEND_WAYLAND (context->backend))
|
|
return TRUE;
|
|
else
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_EGL
|
|
if (backend_type == I_(CLUTTER_WINDOWING_EGL) &&
|
|
CLUTTER_IS_BACKEND_EGL_NATIVE (context->backend))
|
|
return TRUE;
|
|
else
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_GDK
|
|
if (backend_type == I_(CLUTTER_WINDOWING_GDK) &&
|
|
CLUTTER_IS_BACKEND_GDK (context->backend))
|
|
return TRUE;
|
|
else
|
|
#endif
|
|
#ifdef CLUTTER_WINDOWING_X11
|
|
if (backend_type == I_(CLUTTER_WINDOWING_X11) &&
|
|
CLUTTER_IS_BACKEND_X11 (context->backend))
|
|
return TRUE;
|
|
else
|
|
#endif
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
_clutter_set_sync_to_vblank (gboolean sync_to_vblank)
|
|
{
|
|
clutter_sync_to_vblank = !!sync_to_vblank;
|
|
}
|
|
|
|
gboolean
|
|
_clutter_get_sync_to_vblank (void)
|
|
{
|
|
return clutter_sync_to_vblank;
|
|
}
|
|
|
|
void
|
|
_clutter_debug_messagev (const char *format,
|
|
va_list var_args)
|
|
{
|
|
static gint64 last_debug_stamp;
|
|
gchar *stamp, *fmt;
|
|
gint64 cur_time, debug_stamp;
|
|
|
|
cur_time = g_get_monotonic_time ();
|
|
|
|
/* if the last debug message happened less than a second ago, just
|
|
* show the increments instead of the full timestamp
|
|
*/
|
|
if (last_debug_stamp == 0 ||
|
|
cur_time - last_debug_stamp >= G_USEC_PER_SEC)
|
|
{
|
|
debug_stamp = cur_time;
|
|
last_debug_stamp = debug_stamp;
|
|
|
|
stamp = g_strdup_printf ("[%16" G_GINT64_FORMAT "]", debug_stamp);
|
|
}
|
|
else
|
|
{
|
|
debug_stamp = cur_time - last_debug_stamp;
|
|
|
|
stamp = g_strdup_printf ("[%+16" G_GINT64_FORMAT "]", debug_stamp);
|
|
}
|
|
|
|
fmt = g_strconcat (stamp, ":", format, NULL);
|
|
g_free (stamp);
|
|
|
|
g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, var_args);
|
|
|
|
#ifdef CLUTTER_ENABLE_PROFILE
|
|
if (_clutter_uprof_context != NULL)
|
|
uprof_context_vtrace_message (_clutter_uprof_context, format, var_args);
|
|
#endif
|
|
|
|
g_free (fmt);
|
|
}
|
|
|
|
void
|
|
_clutter_debug_message (const char *format, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start (args, format);
|
|
_clutter_debug_messagev (format, args);
|
|
va_end (args);
|
|
}
|
|
|
|
gboolean
|
|
_clutter_diagnostic_enabled (void)
|
|
{
|
|
static const char *clutter_enable_diagnostic = NULL;
|
|
|
|
if (G_UNLIKELY (clutter_enable_diagnostic == NULL))
|
|
{
|
|
clutter_enable_diagnostic = g_getenv ("CLUTTER_ENABLE_DIAGNOSTIC");
|
|
|
|
if (clutter_enable_diagnostic == NULL)
|
|
clutter_enable_diagnostic = "0";
|
|
}
|
|
|
|
return *clutter_enable_diagnostic != '0';
|
|
}
|
|
|
|
void
|
|
_clutter_diagnostic_message (const char *format, ...)
|
|
{
|
|
va_list args;
|
|
char *fmt;
|
|
|
|
fmt = g_strconcat ("[DIAGNOSTIC]: ", format, NULL);
|
|
|
|
va_start (args, format);
|
|
g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, args);
|
|
va_end (args);
|
|
|
|
g_free (fmt);
|
|
}
|