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/*
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* GStreamer
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define CLUTTER_VERSION_MIN_REQUIRED CLUTTER_VERSION_1_8
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#include <X11/Xlib.h>
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#include <X11/extensions/Xcomposite.h>
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#include <clutter/clutter.h>
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#include <clutter/x11/clutter-x11.h>
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#include <clutter/glx/clutter-glx.h>
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#include <gst/gst.h>
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#include <gst/video/videooverlay.h>
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#define W 320
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#define H 240
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struct GstGLClutterActor_
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{
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Window win;
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Window root;
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ClutterActor *texture;
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ClutterActor *stage;
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};
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typedef struct GstGLClutterActor_ GstGLClutterActor;
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static gboolean
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create_actor (GstGLClutterActor * actor)
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{
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//ClutterKnot knot[2];
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//ClutterTimeline *timeline;
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ClutterAnimation *animation = NULL;
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actor->texture = g_object_new (CLUTTER_X11_TYPE_TEXTURE_PIXMAP,
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"window", actor->win, "automatic-updates", TRUE, NULL);
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clutter_container_add_actor (CLUTTER_CONTAINER (actor->stage),
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actor->texture);
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clutter_actor_set_scale (actor->texture, 0.2, 0.2);
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clutter_actor_set_opacity (actor->texture, 0);
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clutter_actor_show (actor->texture);
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//timeline =
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// clutter_timeline_new (120 /* frames */ , 50 /* frames per second. */ );
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//clutter_timeline_set_loop (timeline, TRUE);
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//clutter_timeline_start (timeline);
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/* Instead of our custom callback,
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* we could use a standard callback. For instance, CLUTTER_ALPHA_SINE_INC.
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*/
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/*effect_template =
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clutter_effect_template_new (timeline, CLUTTER_ALPHA_SINE_INC); */
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animation =
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clutter_actor_animate (actor->texture, CLUTTER_LINEAR, 2400,
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"x", 100.0, "y", 100.0, "opacity", 0, NULL);
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/* knot[0].x = -10;
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knot[0].y = -10;
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knot[1].x = 160;
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knot[1].y = 120; */
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// Move the actor along the path:
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/* clutter_effect_path (effect_template, actor->texture, knot,
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sizeof (knot) / sizeof (ClutterKnot), NULL, NULL);
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clutter_effect_scale (effect_template, actor->texture, 1.0, 1.0, NULL, NULL);
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clutter_effect_rotate (effect_template, actor->texture,
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CLUTTER_Z_AXIS, 360.0, W / 2.0, H / 2.0, 0.0,
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CLUTTER_ROTATE_CW, NULL, NULL);
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clutter_effect_rotate (effect_template, actor->texture,
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CLUTTER_X_AXIS, 360.0, 0.0, W / 4.0, 0.0, CLUTTER_ROTATE_CW, NULL, NULL); */
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// Also change the actor's opacity while moving it along the path:
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// (You would probably want to use a different ClutterEffectTemplate,
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// so you could use a different alpha callback for this.)
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//clutter_effect_fade (effect_template, actor->texture, 255, NULL, NULL);
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g_object_unref (animation);
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//g_object_unref (timeline);
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return FALSE;
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}
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static GstBusSyncReply
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create_window (GstBus * bus, GstMessage * message, gpointer data)
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{
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GstGLClutterActor *actor = (GstGLClutterActor *) data;
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// ignore anything but 'prepare-window-handle' element messages
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if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
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return GST_BUS_PASS;
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if (!gst_is_video_overlay_prepare_window_handle_message (message))
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return GST_BUS_PASS;
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g_debug ("CREATING WINDOW");
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gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (GST_MESSAGE_SRC
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(message)), actor->win);
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clutter_threads_add_idle ((GSourceFunc) create_actor, actor);
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gst_message_unref (message);
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return GST_BUS_DROP;
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}
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int
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main (int argc, char *argv[])
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{
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GstPipeline *pipeline;
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GstBus *bus;
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ClutterActor *stage;
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GstGLClutterActor *actor;
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Display *disp;
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Window stage_win;
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ClutterInitError clutter_err = CLUTTER_INIT_ERROR_UNKNOWN;
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clutter_err = clutter_init (&argc, &argv);
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if (clutter_err != CLUTTER_INIT_SUCCESS)
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g_warning ("Failed to initalize clutter: %d\n", clutter_err);
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gst_init (&argc, &argv);
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disp = clutter_x11_get_default_display ();
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if (!clutter_x11_has_composite_extension ()) {
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g_error ("XComposite extension missing");
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}
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stage = clutter_stage_get_default ();
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// clutter_actor_set_size (CLUTTER_ACTOR (stage), W*3+2, H);
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stage_win = clutter_x11_get_stage_window (CLUTTER_STAGE (stage));
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actor = g_new0 (GstGLClutterActor, 1);
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actor->stage = stage;
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actor->win = XCreateSimpleWindow (disp, stage_win, 0, 0, W, H, 0, 0, 0);
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XCompositeRedirectWindow (disp, actor->win, CompositeRedirectManual);
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XMapRaised (disp, actor->win);
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XSync (disp, FALSE);
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pipeline =
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GST_PIPELINE (gst_parse_launch
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("videotestsrc ! video/x-raw, width=320, height=240, framerate=(fraction)30/1 ! "
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"gleffects effect=twirl ! glimagesink", NULL));
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bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
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gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, actor,
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NULL);
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gst_object_unref (bus);
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
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clutter_actor_show_all (stage);
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clutter_main ();
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
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gst_object_unref (pipeline);
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return 0;
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}
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