9c102b7c51
Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
593 lines
16 KiB
C
593 lines
16 KiB
C
/* Clutter.
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* An OpenGL based 'interactive canvas' library.
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* Authored By Matthew Allum <mallum@openedhand.com>
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* Copyright (C) 2006-2007 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#include "config.h"
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#include <math.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <cogl/cogl.h>
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#include <gdk/gdk.h>
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#ifdef GDK_WINDOWING_X11
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#include <gdk/gdkx.h>
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#endif
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#ifdef GDK_WINDOWING_WIN32
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#include <gdk/gdkwin32.h>
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#endif
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#include "clutter-backend-gdk.h"
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#include "clutter-stage-gdk.h"
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#include "clutter-gdk.h"
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#include "clutter-actor-private.h"
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#include "clutter-debug.h"
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#include "clutter-device-manager-private.h"
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#include "clutter-enum-types.h"
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#include "clutter-event-translator.h"
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#include "clutter-event-private.h"
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#include "clutter-feature.h"
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#include "clutter-main.h"
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#include "clutter-paint-volume-private.h"
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#include "clutter-private.h"
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#include "clutter-stage-private.h"
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static void clutter_stage_window_iface_init (ClutterStageWindowIface *iface);
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static ClutterStageWindowIface *clutter_stage_window_parent_iface = NULL;
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#define clutter_stage_gdk_get_type _clutter_stage_gdk_get_type
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G_DEFINE_TYPE_WITH_CODE (ClutterStageGdk,
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clutter_stage_gdk,
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CLUTTER_TYPE_STAGE_COGL,
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G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_STAGE_WINDOW,
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clutter_stage_window_iface_init));
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static void
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clutter_stage_gdk_update_foreign_event_mask (CoglOnscreen *onscreen,
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guint32 event_mask,
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void *user_data)
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{
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ClutterStageGdk *stage_gdk = user_data;
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/* we assume that a GDK event mask is bitwise compatible with X11
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event masks */
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gdk_window_set_events (stage_gdk->window, event_mask | CLUTTER_STAGE_GDK_EVENT_MASK);
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}
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static void
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clutter_stage_gdk_set_gdk_geometry (ClutterStageGdk *stage)
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{
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GdkGeometry geometry;
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ClutterStage *wrapper = CLUTTER_STAGE_COGL (stage)->wrapper;
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gboolean resize = clutter_stage_get_user_resizable (wrapper);
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if (!resize)
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{
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geometry.min_width = geometry.max_width = gdk_window_get_width (stage->window);
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geometry.min_height = geometry.max_height = gdk_window_get_height (stage->window);
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gdk_window_set_geometry_hints (stage->window,
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&geometry,
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GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE);
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}
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else
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{
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clutter_stage_get_minimum_size (wrapper,
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(guint *)&geometry.min_width,
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(guint *)&geometry.min_height);
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gdk_window_set_geometry_hints (stage->window,
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&geometry,
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GDK_HINT_MIN_SIZE);
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}
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}
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static void
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clutter_stage_gdk_get_geometry (ClutterStageWindow *stage_window,
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ClutterGeometry *geometry)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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if (stage_gdk->window != NULL)
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{
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geometry->width = gdk_window_get_width (stage_gdk->window);
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geometry->height = gdk_window_get_height (stage_gdk->window);
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}
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else
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{
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geometry->width = 640;
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geometry->height = 480;
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}
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}
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static void
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clutter_stage_gdk_resize (ClutterStageWindow *stage_window,
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gint width,
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gint height)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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if (width == 0 || height == 0)
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{
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/* Should not happen, if this turns up we need to debug it and
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* determine the cleanest way to fix.
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*/
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g_warning ("GDK stage not allowed to have 0 width or height");
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width = 1;
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height = 1;
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}
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CLUTTER_NOTE (BACKEND, "New size received: (%d, %d)", width, height);
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CLUTTER_SET_PRIVATE_FLAGS (CLUTTER_STAGE_COGL (stage_gdk)->wrapper,
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CLUTTER_IN_RESIZE);
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gdk_window_resize (stage_gdk->window, width, height);
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}
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static void
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clutter_stage_gdk_unrealize (ClutterStageWindow *stage_window)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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if (stage_gdk->window != NULL)
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{
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g_object_set_data (G_OBJECT (stage_gdk->window),
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"clutter-stage-window", NULL);
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if (stage_gdk->foreign_window)
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g_object_unref (stage_gdk->window);
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else
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gdk_window_destroy (stage_gdk->window);
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stage_gdk->window = NULL;
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}
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}
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static gboolean
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clutter_stage_gdk_realize (ClutterStageWindow *stage_window)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
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ClutterBackend *backend = CLUTTER_BACKEND (stage_cogl->backend);
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ClutterBackendGdk *backend_gdk = CLUTTER_BACKEND_GDK (backend);
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GdkWindowAttr attributes;
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gboolean cursor_visible;
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gboolean use_alpha;
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gfloat width, height;
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if (stage_gdk->foreign_window &&
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stage_gdk->window != NULL)
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{
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/* complete realizing the stage */
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ClutterGeometry geometry;
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clutter_stage_gdk_get_geometry (stage_window, &geometry);
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clutter_actor_set_geometry (CLUTTER_ACTOR (stage_cogl->wrapper), &geometry);
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gdk_window_ensure_native (stage_gdk->window);
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gdk_window_set_events (stage_gdk->window,
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CLUTTER_STAGE_GDK_EVENT_MASK);
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return TRUE;
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}
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attributes.title = NULL;
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g_object_get (stage_cogl->wrapper,
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"cursor-visible", &cursor_visible,
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"title", &attributes.title,
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"width", &width,
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"height", &height,
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"use-alpha", &use_alpha,
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NULL);
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attributes.width = width;
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attributes.height = height;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.window_type = GDK_WINDOW_TOPLEVEL;
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attributes.event_mask = CLUTTER_STAGE_GDK_EVENT_MASK;
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attributes.cursor = NULL;
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if (!cursor_visible)
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{
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if (stage_gdk->blank_cursor == NULL)
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stage_gdk->blank_cursor = gdk_cursor_new (GDK_BLANK_CURSOR);
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attributes.cursor = stage_gdk->blank_cursor;
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}
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attributes.visual = NULL;
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if (use_alpha)
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{
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attributes.visual = gdk_screen_get_rgba_visual (backend_gdk->screen);
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if (attributes.visual == NULL)
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clutter_stage_set_use_alpha (stage_cogl->wrapper, FALSE);
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}
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if (attributes.visual == NULL)
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{
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/* This could still be an RGBA visual, although normally it's not */
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attributes.visual = gdk_screen_get_system_visual (backend_gdk->screen);
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}
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if (stage_gdk->window != NULL)
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{
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g_critical ("Stage realized more than once");
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return FALSE;
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}
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stage_gdk->foreign_window = FALSE;
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stage_gdk->window = gdk_window_new (NULL, &attributes,
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GDK_WA_TITLE | GDK_WA_CURSOR | GDK_WA_VISUAL);
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gdk_window_ensure_native (stage_gdk->window);
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clutter_stage_gdk_set_gdk_geometry (stage_gdk);
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g_object_set_data (G_OBJECT (stage_gdk->window),
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"clutter-stage-window", stage_gdk);
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g_free (attributes.title);
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stage_cogl->onscreen = cogl_onscreen_new (backend->cogl_context,
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width, height);
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#if defined(GDK_WINDOWING_X11) && defined(COGL_HAS_XLIB_SUPPORT)
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if (GDK_IS_X11_WINDOW (stage_gdk->window))
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{
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cogl_x11_onscreen_set_foreign_window_xid (stage_cogl->onscreen,
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GDK_WINDOW_XID (stage_gdk->window),
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clutter_stage_gdk_update_foreign_event_mask,
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stage_gdk);
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}
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else
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#endif
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#if defined(GDK_WINDOWING_WIN32) && defined(COGL_HAS_WIN32_SUPPORT)
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if (GDK_IS_WIN32_WINDOW (stage_gdk->window))
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{
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cogl_win32_onscreen_set_foreign_window (stage_cogl->onscreen,
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gdk_win32_window_get_handle (stage_gdk->window));
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}
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else
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#endif
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{
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g_warning ("Cannot find an appropriate CoglWinsys for a "
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"GdkWindow of type %s", G_OBJECT_TYPE_NAME (stage_gdk->window));
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cogl_object_unref (stage_cogl->onscreen);
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stage_cogl->onscreen = NULL;
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gdk_window_destroy (stage_gdk->window);
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stage_gdk->window = NULL;
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return FALSE;
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}
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return clutter_stage_window_parent_iface->realize (stage_window);
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}
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static void
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clutter_stage_gdk_set_fullscreen (ClutterStageWindow *stage_window,
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gboolean is_fullscreen)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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ClutterStage *stage = CLUTTER_STAGE_COGL (stage_window)->wrapper;
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if (stage == NULL || CLUTTER_ACTOR_IN_DESTRUCTION (stage))
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return;
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if (stage_gdk->window == NULL)
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return;
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CLUTTER_NOTE (BACKEND, "%ssetting fullscreen", is_fullscreen ? "" : "un");
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if (is_fullscreen)
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gdk_window_fullscreen (stage_gdk->window);
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else
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gdk_window_unfullscreen (stage_gdk->window);
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}
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static void
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clutter_stage_gdk_set_cursor_visible (ClutterStageWindow *stage_window,
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gboolean cursor_visible)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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if (stage_gdk->window == NULL)
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return;
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if (cursor_visible)
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{
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gdk_window_set_cursor (stage_gdk->window, NULL);
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}
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else
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{
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if (stage_gdk->blank_cursor == NULL)
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stage_gdk->blank_cursor = gdk_cursor_new (GDK_BLANK_CURSOR);
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gdk_window_set_cursor (stage_gdk->window, stage_gdk->blank_cursor);
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}
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}
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static void
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clutter_stage_gdk_set_title (ClutterStageWindow *stage_window,
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const gchar *title)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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if (stage_gdk->window == NULL)
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return;
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gdk_window_set_title (stage_gdk->window, title);
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}
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static void
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clutter_stage_gdk_set_user_resizable (ClutterStageWindow *stage_window,
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gboolean is_resizable)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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GdkWMFunction function;
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if (stage_gdk->window == NULL)
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return;
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function = GDK_FUNC_MOVE | GDK_FUNC_MINIMIZE | GDK_FUNC_CLOSE;
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if (is_resizable)
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function |= GDK_FUNC_RESIZE | GDK_FUNC_MAXIMIZE;
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gdk_window_set_functions (stage_gdk->window, function);
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clutter_stage_gdk_set_gdk_geometry (stage_gdk);
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}
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static void
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clutter_stage_gdk_set_accept_focus (ClutterStageWindow *stage_window,
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gboolean accept_focus)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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if (stage_gdk->window == NULL)
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return;
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gdk_window_set_accept_focus (stage_gdk->window, accept_focus);
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}
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static void
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clutter_stage_gdk_show (ClutterStageWindow *stage_window,
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gboolean do_raise)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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g_return_if_fail (stage_gdk->window != NULL);
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clutter_actor_map (CLUTTER_ACTOR (CLUTTER_STAGE_COGL (stage_gdk)->wrapper));
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if (do_raise)
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gdk_window_show (stage_gdk->window);
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else
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gdk_window_show_unraised (stage_gdk->window);
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}
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static void
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clutter_stage_gdk_hide (ClutterStageWindow *stage_window)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
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g_return_if_fail (stage_gdk->window != NULL);
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clutter_actor_unmap (CLUTTER_ACTOR (CLUTTER_STAGE_COGL (stage_gdk)->wrapper));
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gdk_window_hide (stage_gdk->window);
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}
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static void
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clutter_stage_gdk_dispose (GObject *gobject)
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{
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ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (gobject);
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if (stage_gdk->window != NULL)
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{
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g_object_set_data (G_OBJECT (stage_gdk->window),
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"clutter-stage-window", NULL);
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if (stage_gdk->foreign_window)
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g_object_unref (stage_gdk->window);
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else
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gdk_window_destroy (stage_gdk->window);
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stage_gdk->window = NULL;
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}
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if (stage_gdk->blank_cursor != NULL)
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{
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g_object_unref (stage_gdk->blank_cursor);
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stage_gdk->blank_cursor = NULL;
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}
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G_OBJECT_CLASS (clutter_stage_gdk_parent_class)->dispose (gobject);
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}
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static void
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clutter_stage_gdk_class_init (ClutterStageGdkClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->dispose = clutter_stage_gdk_dispose;
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}
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static void
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clutter_stage_gdk_init (ClutterStageGdk *stage)
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{
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/* nothing to do here */
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}
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static void
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clutter_stage_window_iface_init (ClutterStageWindowIface *iface)
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{
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clutter_stage_window_parent_iface = g_type_interface_peek_parent (iface);
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iface->set_title = clutter_stage_gdk_set_title;
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iface->set_fullscreen = clutter_stage_gdk_set_fullscreen;
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iface->set_cursor_visible = clutter_stage_gdk_set_cursor_visible;
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iface->set_user_resizable = clutter_stage_gdk_set_user_resizable;
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iface->set_accept_focus = clutter_stage_gdk_set_accept_focus;
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iface->show = clutter_stage_gdk_show;
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iface->hide = clutter_stage_gdk_hide;
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iface->resize = clutter_stage_gdk_resize;
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iface->get_geometry = clutter_stage_gdk_get_geometry;
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iface->realize = clutter_stage_gdk_realize;
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iface->unrealize = clutter_stage_gdk_unrealize;
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}
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/**
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* clutter_gdk_get_stage_window:
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* @stage: a #ClutterStage
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*
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* Gets the stages GdkWindow.
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*
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* Return value: (transfer none): A GdkWindow* for the stage window.
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*
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* Since: 0.4
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*/
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GdkWindow*
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clutter_gdk_get_stage_window (ClutterStage *stage)
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{
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ClutterStageWindow *impl;
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g_return_val_if_fail (CLUTTER_IS_STAGE (stage), None);
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impl = _clutter_stage_get_window (stage);
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g_assert (CLUTTER_IS_STAGE_GDK (impl));
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return CLUTTER_STAGE_GDK (impl)->window;
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}
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/**
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* clutter_gdk_get_stage_from_window:
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* @window: a #GtkWindow
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*
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* Gets the stage for a particular X window.
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*
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* Return value: (transfer none): A #ClutterStage, or% NULL if a stage
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* does not exist for the window
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*
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* Since: 0.8
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*/
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ClutterStage *
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clutter_gdk_get_stage_from_window (GdkWindow *window)
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{
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ClutterStageGdk *stage_gdk = g_object_get_data (G_OBJECT (window), "clutter-stage-window");
|
|
|
|
if (stage_gdk != NULL && CLUTTER_IS_STAGE_GDK (stage_gdk))
|
|
return CLUTTER_STAGE_COGL (stage_gdk)->wrapper;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
ClutterStageGdk *stage_gdk;
|
|
GdkWindow *window;
|
|
} ForeignWindowClosure;
|
|
|
|
static void
|
|
set_foreign_window_callback (ClutterActor *actor,
|
|
void *data)
|
|
{
|
|
ForeignWindowClosure *closure = data;
|
|
ClutterStageGdk *stage_gdk = closure->stage_gdk;
|
|
|
|
stage_gdk->window = closure->window;
|
|
stage_gdk->foreign_window = TRUE;
|
|
|
|
/* calling this with the stage unrealized will unset the stage
|
|
* from the GL context; once the stage is realized the GL context
|
|
* will be set again
|
|
*/
|
|
clutter_stage_ensure_current (CLUTTER_STAGE (actor));
|
|
}
|
|
|
|
/**
|
|
* clutter_gdk_set_stage_foreign:
|
|
* @stage: a #ClutterStage
|
|
* @window: an existing #GdkWindow
|
|
*
|
|
* Target the #ClutterStage to use an existing external #GdkWindow
|
|
*
|
|
* Return value: %TRUE if foreign window is valid
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
gboolean
|
|
clutter_gdk_set_stage_foreign (ClutterStage *stage,
|
|
GdkWindow *window)
|
|
{
|
|
ForeignWindowClosure closure;
|
|
ClutterStageGdk *stage_gdk;
|
|
ClutterStageWindow *impl;
|
|
ClutterActor *actor;
|
|
gpointer gtk_data = NULL;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_STAGE (stage), FALSE);
|
|
g_return_val_if_fail (!CLUTTER_ACTOR_IN_DESTRUCTION (stage), FALSE);
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
impl = _clutter_stage_get_window (stage);
|
|
stage_gdk = CLUTTER_STAGE_GDK (impl);
|
|
|
|
if (g_object_get_data (G_OBJECT (window), "clutter-stage-window") != NULL)
|
|
{
|
|
g_critical ("The provided GdkWindow is already in use by another ClutterStage");
|
|
return FALSE;
|
|
}
|
|
|
|
gdk_window_get_user_data (window, >k_data);
|
|
if (gtk_data != NULL)
|
|
{
|
|
g_critical ("The provided GdkWindow is already in use by a GtkWidget. "
|
|
"Use a child GdkWindow for embedding instead");
|
|
return FALSE;
|
|
}
|
|
|
|
closure.stage_gdk = stage_gdk;
|
|
closure.window = g_object_ref (window);
|
|
|
|
actor = CLUTTER_ACTOR (stage);
|
|
|
|
_clutter_actor_rerealize (actor,
|
|
set_foreign_window_callback,
|
|
&closure);
|
|
|
|
/* Queue a relayout - so the stage will be allocated the new
|
|
* window size.
|
|
*
|
|
* Note also that when the stage gets allocated the new
|
|
* window size that will result in the stage's
|
|
* priv->viewport being changed, which will in turn result
|
|
* in the Cogl viewport changing when _clutter_do_redraw
|
|
* calls _clutter_stage_maybe_setup_viewport().
|
|
*/
|
|
clutter_actor_queue_relayout (actor);
|
|
|
|
return TRUE;
|
|
}
|