mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
1075 lines
27 KiB
C
1075 lines
27 KiB
C
/*
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* GStreamer
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* Copyright (C) 2012 Matthew Waters <ystreet00@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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/**
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* SECTION:gstglwindow
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* @short_description: window/surface abstraction
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* @title: GstGLWindow
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* @see_also: #GstGLContext, #GstGLDisplay
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*
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* GstGLWindow represents a window that elements can render into. A window can
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* either be a user visible window (onscreen) or hidden (offscreen).
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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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#include <gmodule.h>
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#include <stdio.h>
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#include "gl.h"
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#include "gstglwindow.h"
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#include "gstglwindow_private.h"
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/* FIXME make this work with windowless contexts */
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#if GST_GL_HAVE_WINDOW_X11
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#include "x11/gstglwindow_x11.h"
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#endif
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#if GST_GL_HAVE_WINDOW_WIN32
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#include "win32/gstglwindow_win32.h"
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#endif
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#if GST_GL_HAVE_WINDOW_COCOA
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#include "cocoa/gstglwindow_cocoa.h"
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#endif
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#if GST_GL_HAVE_WINDOW_WAYLAND
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#include "wayland/gstglwindow_wayland_egl.h"
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#endif
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#if GST_GL_HAVE_WINDOW_ANDROID
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#include "android/gstglwindow_android_egl.h"
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#endif
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#if GST_GL_HAVE_WINDOW_EAGL
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#include "eagl/gstglwindow_eagl.h"
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#endif
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#if GST_GL_HAVE_WINDOW_VIV_FB
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#include "viv-fb/gstglwindow_viv_fb_egl.h"
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#endif
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#if GST_GL_HAVE_WINDOW_GBM
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#include "gbm/gstglwindow_gbm_egl.h"
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#endif
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#if GST_GL_HAVE_WINDOW_DISPMANX
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#include "dispmanx/gstglwindow_dispmanx_egl.h"
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#endif
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#define USING_OPENGL(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL, 1, 0))
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#define USING_OPENGL3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL3, 3, 1))
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#define USING_GLES(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES, 1, 0))
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#define USING_GLES2(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 2, 0))
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#define USING_GLES3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0))
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#define GST_CAT_DEFAULT gst_gl_window_debug
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GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
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static void gst_gl_window_default_draw (GstGLWindow * window);
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static void gst_gl_window_default_run (GstGLWindow * window);
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static void gst_gl_window_default_quit (GstGLWindow * window);
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static void gst_gl_window_default_send_message (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data);
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static void gst_gl_window_default_send_message_async (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data, GDestroyNotify destroy);
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struct _GstGLWindowPrivate
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{
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GMainLoop *loop;
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guint surface_width;
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guint surface_height;
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gboolean alive;
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GMutex sync_message_lock;
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GCond sync_message_cond;
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};
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#define gst_gl_window_parent_class parent_class
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (GstGLWindow, gst_gl_window,
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GST_TYPE_OBJECT);
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static void gst_gl_window_finalize (GObject * object);
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typedef struct _GstGLDummyWindow
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{
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GstGLWindow parent;
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guintptr handle;
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} GstGLDummyWindow;
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typedef struct _GstGLDummyWindowCass
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{
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GstGLWindowClass parent;
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} GstGLDummyWindowClass;
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static GstGLDummyWindow *gst_gl_dummy_window_new (void);
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enum
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{
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SIGNAL_0,
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EVENT_MOUSE_SIGNAL,
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EVENT_KEY_SIGNAL,
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LAST_SIGNAL
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};
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static guint gst_gl_window_signals[LAST_SIGNAL] = { 0 };
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/**
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* gst_gl_window_error_quark:
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*
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* Returns: the quark used for #GstGLWindow in #GError's
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*/
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GQuark
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gst_gl_window_error_quark (void)
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{
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return g_quark_from_static_string ("gst-gl-window-error-quark");
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}
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static gboolean
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gst_gl_window_default_open (GstGLWindow * window, GError ** error)
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{
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return TRUE;
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}
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static void
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gst_gl_window_default_close (GstGLWindow * window)
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{
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}
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static void
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_init_debug (void)
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{
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static volatile gsize _init = 0;
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if (g_once_init_enter (&_init)) {
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GST_DEBUG_CATEGORY_INIT (gst_gl_window_debug, "glwindow", 0,
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"glwindow element");
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g_once_init_leave (&_init, 1);
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}
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}
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static void
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gst_gl_window_init (GstGLWindow * window)
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{
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GstGLWindowPrivate *priv = gst_gl_window_get_instance_private (window);
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window->priv = priv;
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g_mutex_init (&window->lock);
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window->is_drawing = FALSE;
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g_weak_ref_init (&window->context_ref, NULL);
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g_mutex_init (&window->priv->sync_message_lock);
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g_cond_init (&window->priv->sync_message_cond);
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window->main_context = g_main_context_new ();
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priv->loop = g_main_loop_new (window->main_context, FALSE);
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}
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static void
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gst_gl_window_class_init (GstGLWindowClass * klass)
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{
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klass->open = GST_DEBUG_FUNCPTR (gst_gl_window_default_open);
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klass->close = GST_DEBUG_FUNCPTR (gst_gl_window_default_close);
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klass->run = GST_DEBUG_FUNCPTR (gst_gl_window_default_run);
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klass->quit = GST_DEBUG_FUNCPTR (gst_gl_window_default_quit);
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klass->draw = GST_DEBUG_FUNCPTR (gst_gl_window_default_draw);
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klass->send_message = GST_DEBUG_FUNCPTR (gst_gl_window_default_send_message);
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klass->send_message_async =
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GST_DEBUG_FUNCPTR (gst_gl_window_default_send_message_async);
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G_OBJECT_CLASS (klass)->finalize = gst_gl_window_finalize;
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/**
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* GstGLWindow::mouse-event:
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* @object: the #GstGLWindow
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* @id: the name of the event
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* @button: the id of the button
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* @x: the x coordinate of the mouse event
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* @y: the y coordinate of the mouse event
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*
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* Will be emitted when a mouse event is received by the GstGLwindow.
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*
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* Since: 1.6
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*/
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gst_gl_window_signals[EVENT_MOUSE_SIGNAL] =
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g_signal_new ("mouse-event", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic,
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G_TYPE_NONE, 4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
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/**
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* GstGLWindow::key-event:
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* @object: the #GstGLWindow
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* @id: the name of the event
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* @key: the id of the key pressed
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*
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* Will be emitted when a key event is received by the GstGLwindow.
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*
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* Since: 1.6
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*/
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gst_gl_window_signals[EVENT_KEY_SIGNAL] =
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g_signal_new ("key-event", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic,
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G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_STRING);
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_init_debug ();
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}
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/**
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* gst_gl_window_new:
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* @display: a #GstGLDisplay
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*
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* Returns: (transfer full): a new #GstGLWindow using @display's connection
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*
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* Since: 1.4
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*/
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GstGLWindow *
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gst_gl_window_new (GstGLDisplay * display)
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{
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GstGLWindow *window = NULL;
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const gchar *user_choice;
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g_return_val_if_fail (display != NULL, NULL);
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_init_debug ();
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user_choice = g_getenv ("GST_GL_WINDOW");
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GST_INFO ("creating a window, user choice:%s", user_choice);
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#if GST_GL_HAVE_WINDOW_COCOA
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if (!window && (!user_choice || g_strstr_len (user_choice, 5, "cocoa")))
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window = GST_GL_WINDOW (gst_gl_window_cocoa_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_X11
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if (!window && (!user_choice || g_strstr_len (user_choice, 3, "x11")))
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window = GST_GL_WINDOW (gst_gl_window_x11_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_WIN32
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if (!window && (!user_choice || g_strstr_len (user_choice, 5, "win32")))
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window = GST_GL_WINDOW (gst_gl_window_win32_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_WAYLAND
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if (!window && (!user_choice || g_strstr_len (user_choice, 7, "wayland")))
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window = GST_GL_WINDOW (gst_gl_window_wayland_egl_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_DISPMANX
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if (!window && (!user_choice || g_strstr_len (user_choice, 8, "dispmanx")))
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window = GST_GL_WINDOW (gst_gl_window_dispmanx_egl_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_ANDROID
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if (!window && (!user_choice || g_strstr_len (user_choice, 7, "android")))
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window = GST_GL_WINDOW (gst_gl_window_android_egl_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_EAGL
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if (!window && (!user_choice || g_strstr_len (user_choice, 4, "eagl")))
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window = GST_GL_WINDOW (gst_gl_window_eagl_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_VIV_FB
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if (!window && (!user_choice || g_strstr_len (user_choice, 6, "viv-fb")))
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window = GST_GL_WINDOW (gst_gl_window_viv_fb_egl_new (display));
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#endif
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#if GST_GL_HAVE_WINDOW_GBM
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if (!window && (!user_choice || g_strstr_len (user_choice, 3, "gbm")))
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window = GST_GL_WINDOW (gst_gl_window_gbm_egl_new (display));
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#endif
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if (!window) {
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/* subclass returned a NULL window */
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GST_WARNING ("Could not create window. user specified %s, creating dummy"
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" window", user_choice ? user_choice : "(null)");
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window = GST_GL_WINDOW (gst_gl_dummy_window_new ());
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}
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window->display = gst_object_ref (display);
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return window;
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}
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static void
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gst_gl_window_finalize (GObject * object)
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{
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GstGLWindow *window = GST_GL_WINDOW (object);
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GstGLWindowPrivate *priv = window->priv;
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if (priv->loop)
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g_main_loop_unref (priv->loop);
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if (window->main_context)
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g_main_context_unref (window->main_context);
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window->main_context = NULL;
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g_weak_ref_clear (&window->context_ref);
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g_mutex_clear (&window->lock);
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g_mutex_clear (&window->priv->sync_message_lock);
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g_cond_clear (&window->priv->sync_message_cond);
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gst_object_unref (window->display);
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G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
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}
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typedef struct _GstSetWindowHandleCb
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{
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GstGLWindow *window;
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guintptr handle;
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} GstSetWindowHandleCb;
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static void
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_set_window_handle_cb (GstSetWindowHandleCb * data)
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{
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GstGLContext *context = gst_gl_window_get_context (data->window);
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GstGLWindowClass *window_class = GST_GL_WINDOW_GET_CLASS (data->window);
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GThread *thread = NULL;
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/* deactivate if necessary */
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if (context) {
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thread = gst_gl_context_get_thread (context);
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if (thread) {
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/* This is only thread safe iff the context thread == g_thread_self() */
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g_assert (thread == g_thread_self ());
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gst_gl_context_activate (context, FALSE);
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}
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}
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window_class->set_window_handle (data->window, data->handle);
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/* reactivate */
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if (context && thread)
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gst_gl_context_activate (context, TRUE);
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if (context)
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gst_object_unref (context);
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if (thread)
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g_thread_unref (thread);
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}
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static void
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_free_swh_cb (GstSetWindowHandleCb * data)
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{
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gst_object_unref (data->window);
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g_slice_free (GstSetWindowHandleCb, data);
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}
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/**
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* gst_gl_window_set_window_handle:
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* @window: a #GstGLWindow
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* @handle: handle to the window
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*
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* Sets the window that this @window should render into. Some implementations
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* require this to be called with a valid handle before drawing can commence.
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*
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* Since: 1.4
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*/
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void
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gst_gl_window_set_window_handle (GstGLWindow * window, guintptr handle)
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{
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GstGLWindowClass *window_class;
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GstSetWindowHandleCb *data;
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g_return_if_fail (GST_IS_GL_WINDOW (window));
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g_return_if_fail (handle != 0);
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window_class = GST_GL_WINDOW_GET_CLASS (window);
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g_return_if_fail (window_class->set_window_handle != NULL);
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data = g_slice_new (GstSetWindowHandleCb);
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data->window = gst_object_ref (window);
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data->handle = handle;
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/* FIXME: Move to a message which deactivates, calls implementation, activates */
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gst_gl_window_send_message_async (window,
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(GstGLWindowCB) _set_window_handle_cb, data,
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(GDestroyNotify) _free_swh_cb);
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/* window_class->set_window_handle (window, handle); */
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}
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static void
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draw_cb (gpointer data)
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{
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GstGLWindow *window = GST_GL_WINDOW (data);
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GstGLContext *context = gst_gl_window_get_context (window);
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if (window->queue_resize) {
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guint width, height;
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gst_gl_window_get_surface_dimensions (window, &width, &height);
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gst_gl_window_resize (window, width, height);
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}
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if (window->draw)
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window->draw (window->draw_data);
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gst_gl_context_swap_buffers (context);
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gst_object_unref (context);
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}
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static void
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gst_gl_window_default_draw (GstGLWindow * window)
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{
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gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
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}
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/**
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* gst_gl_window_draw:
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* @window: a #GstGLWindow
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*
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* Redraw the window contents. Implementations should invoke the draw callback.
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*
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* Since: 1.4
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*/
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void
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gst_gl_window_draw (GstGLWindow * window)
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{
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GstGLWindowClass *window_class;
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g_return_if_fail (GST_IS_GL_WINDOW (window));
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window_class = GST_GL_WINDOW_GET_CLASS (window);
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g_return_if_fail (window_class->draw != NULL);
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/* avoid to overload the drawer */
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if (window->is_drawing) {
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return;
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}
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window_class->draw (window);
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}
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/**
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* gst_gl_window_set_preferred_size:
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* @window: a #GstGLWindow
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* @width: new preferred width
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* @height: new preferred height
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*
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* Set the preferred width and height of the window. Implementations are free
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* to ignore this information.
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*
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* Since: 1.6
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*/
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void
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gst_gl_window_set_preferred_size (GstGLWindow * window, gint width, gint height)
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{
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GstGLWindowClass *window_class;
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g_return_if_fail (GST_IS_GL_WINDOW (window));
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window_class = GST_GL_WINDOW_GET_CLASS (window);
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if (window_class->set_preferred_size)
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window_class->set_preferred_size (window, width, height);
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}
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/**
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* gst_gl_window_show:
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* @window: a #GstGLWindow
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*
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* Present the window to the screen.
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*
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* Since: 1.6
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*/
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void
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gst_gl_window_show (GstGLWindow * window)
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|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
|
|
if (window_class->show)
|
|
window_class->show (window);
|
|
}
|
|
|
|
static void
|
|
gst_gl_window_default_run (GstGLWindow * window)
|
|
{
|
|
GstGLWindowPrivate *priv = window->priv;
|
|
|
|
g_main_context_push_thread_default (window->main_context);
|
|
|
|
g_main_loop_run (priv->loop);
|
|
|
|
g_main_context_pop_thread_default (window->main_context);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_run:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Start the execution of the runloop.
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_run (GstGLWindow * window)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
g_return_if_fail (window_class->run != NULL);
|
|
|
|
window->priv->alive = TRUE;
|
|
window_class->run (window);
|
|
}
|
|
|
|
static void
|
|
gst_gl_window_default_quit (GstGLWindow * window)
|
|
{
|
|
g_main_loop_quit (window->priv->loop);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_quit:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Quit the runloop's execution.
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_quit (GstGLWindow * window)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
g_return_if_fail (window_class->quit != NULL);
|
|
|
|
GST_GL_WINDOW_LOCK (window);
|
|
|
|
window->priv->alive = FALSE;
|
|
|
|
window_class->quit (window);
|
|
|
|
GST_INFO ("quit sent to gl window loop");
|
|
|
|
GST_GL_WINDOW_UNLOCK (window);
|
|
}
|
|
|
|
typedef struct _GstGLSyncMessage
|
|
{
|
|
GstGLWindow *window;
|
|
gboolean fired;
|
|
|
|
GstGLWindowCB callback;
|
|
gpointer data;
|
|
} GstGLSyncMessage;
|
|
|
|
static void
|
|
_run_message_sync (GstGLSyncMessage * message)
|
|
{
|
|
|
|
if (message->callback)
|
|
message->callback (message->data);
|
|
|
|
g_mutex_lock (&message->window->priv->sync_message_lock);
|
|
message->fired = TRUE;
|
|
g_cond_broadcast (&message->window->priv->sync_message_cond);
|
|
g_mutex_unlock (&message->window->priv->sync_message_lock);
|
|
}
|
|
|
|
void
|
|
gst_gl_window_default_send_message (GstGLWindow * window,
|
|
GstGLWindowCB callback, gpointer data)
|
|
{
|
|
GstGLSyncMessage message;
|
|
|
|
message.window = window;
|
|
message.callback = callback;
|
|
message.data = data;
|
|
message.fired = FALSE;
|
|
|
|
gst_gl_window_send_message_async (window, (GstGLWindowCB) _run_message_sync,
|
|
&message, NULL);
|
|
|
|
g_mutex_lock (&window->priv->sync_message_lock);
|
|
|
|
/* block until opengl calls have been executed in the gl thread */
|
|
while (!message.fired)
|
|
g_cond_wait (&window->priv->sync_message_cond,
|
|
&window->priv->sync_message_lock);
|
|
g_mutex_unlock (&window->priv->sync_message_lock);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_send_message:
|
|
* @window: a #GstGLWindow
|
|
* @callback: (scope async): function to invoke
|
|
* @data: (closure): data to invoke @callback with
|
|
*
|
|
* Invoke @callback with data on the window thread. @callback is guarenteed to
|
|
* have executed when this function returns.
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_send_message (GstGLWindow * window, GstGLWindowCB callback,
|
|
gpointer data)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
g_return_if_fail (callback != NULL);
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
g_return_if_fail (window_class->send_message != NULL);
|
|
|
|
window_class->send_message (window, callback, data);
|
|
}
|
|
|
|
typedef struct _GstGLAsyncMessage
|
|
{
|
|
GstGLWindowCB callback;
|
|
gpointer data;
|
|
GDestroyNotify destroy;
|
|
} GstGLAsyncMessage;
|
|
|
|
static gboolean
|
|
_run_message_async (GstGLAsyncMessage * message)
|
|
{
|
|
if (message->callback)
|
|
message->callback (message->data);
|
|
|
|
if (message->destroy)
|
|
message->destroy (message->data);
|
|
|
|
g_slice_free (GstGLAsyncMessage, message);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_gl_window_default_send_message_async (GstGLWindow * window,
|
|
GstGLWindowCB callback, gpointer data, GDestroyNotify destroy)
|
|
{
|
|
GstGLAsyncMessage *message = g_slice_new (GstGLAsyncMessage);
|
|
|
|
message->callback = callback;
|
|
message->data = data;
|
|
message->destroy = destroy;
|
|
|
|
g_main_context_invoke (window->main_context, (GSourceFunc) _run_message_async,
|
|
message);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_send_message_async:
|
|
* @window: a #GstGLWindow
|
|
* @callback: (scope async): function to invoke
|
|
* @data: (closure): data to invoke @callback with
|
|
* @destroy: called when @data is not needed anymore
|
|
*
|
|
* Invoke @callback with @data on the window thread. The callback may not
|
|
* have been executed when this function returns.
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_send_message_async (GstGLWindow * window, GstGLWindowCB callback,
|
|
gpointer data, GDestroyNotify destroy)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
g_return_if_fail (callback != NULL);
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
g_return_if_fail (window_class->send_message_async != NULL);
|
|
|
|
window_class->send_message_async (window, callback, data, destroy);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_set_draw_callback:
|
|
* @window: a #GstGLWindow
|
|
* @callback: (scope notified): function to invoke
|
|
* @data: (closure): data to invoke @callback with
|
|
* @destroy_notify: called when @data is not needed any more
|
|
*
|
|
* Sets the draw callback called everytime gst_gl_window_draw() is called
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_set_draw_callback (GstGLWindow * window, GstGLWindowCB callback,
|
|
gpointer data, GDestroyNotify destroy_notify)
|
|
{
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
|
|
GST_GL_WINDOW_LOCK (window);
|
|
|
|
if (window->draw_notify)
|
|
window->draw_notify (window->draw_data);
|
|
|
|
window->draw = callback;
|
|
window->draw_data = data;
|
|
window->draw_notify = destroy_notify;
|
|
|
|
GST_GL_WINDOW_UNLOCK (window);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_set_resize_callback:
|
|
* @window: a #GstGLWindow
|
|
* @callback: (scope notified): function to invoke
|
|
* @data: (closure): data to invoke @callback with
|
|
* @destroy_notify: called when @data is not needed any more
|
|
*
|
|
* Sets the resize callback called everytime a resize of the window occurs.
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_set_resize_callback (GstGLWindow * window,
|
|
GstGLWindowResizeCB callback, gpointer data, GDestroyNotify destroy_notify)
|
|
{
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
|
|
GST_GL_WINDOW_LOCK (window);
|
|
|
|
if (window->resize_notify)
|
|
window->resize_notify (window->resize_data);
|
|
|
|
window->resize = callback;
|
|
window->resize_data = data;
|
|
window->resize_notify = destroy_notify;
|
|
|
|
GST_GL_WINDOW_UNLOCK (window);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_set_close_callback:
|
|
* @window: a #GstGLWindow
|
|
* @callback: (scope notified): function to invoke
|
|
* @data: (closure): data to invoke @callback with
|
|
* @destroy_notify: called when @data is not needed any more
|
|
*
|
|
* Sets the callback called when the window is about to close.
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
void
|
|
gst_gl_window_set_close_callback (GstGLWindow * window, GstGLWindowCB callback,
|
|
gpointer data, GDestroyNotify destroy_notify)
|
|
{
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
|
|
GST_GL_WINDOW_LOCK (window);
|
|
|
|
if (window->close_notify)
|
|
window->close_notify (window->close_data);
|
|
|
|
window->close = callback;
|
|
window->close_data = data;
|
|
window->close_notify = destroy_notify;
|
|
|
|
GST_GL_WINDOW_UNLOCK (window);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_get_display:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Returns: the windowing system display handle for this @window
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
guintptr
|
|
gst_gl_window_get_display (GstGLWindow * window)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_val_if_fail (GST_IS_GL_WINDOW (window), 0);
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
g_return_val_if_fail (window_class->get_display != NULL, 0);
|
|
|
|
return window_class->get_display (window);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_get_window_handle:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Returns: the window handle we are currently rendering into
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
guintptr
|
|
gst_gl_window_get_window_handle (GstGLWindow * window)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_val_if_fail (GST_IS_GL_WINDOW (window), 0);
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
g_return_val_if_fail (window_class->get_window_handle != NULL, 0);
|
|
|
|
return window_class->get_window_handle (window);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_get_context:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Returns: (transfer full): the #GstGLContext associated with this @window
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
GstGLContext *
|
|
gst_gl_window_get_context (GstGLWindow * window)
|
|
{
|
|
g_return_val_if_fail (GST_IS_GL_WINDOW (window), NULL);
|
|
|
|
return (GstGLContext *) g_weak_ref_get (&window->context_ref);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_get_surface_dimensions:
|
|
* @window: a #GstGLWindow
|
|
* @width: (out): resulting surface width
|
|
* @height: (out): resulting surface height
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
void
|
|
gst_gl_window_get_surface_dimensions (GstGLWindow * window, guint * width,
|
|
guint * height)
|
|
{
|
|
if (width)
|
|
*width = window->priv->surface_width;
|
|
if (height)
|
|
*height = window->priv->surface_height;
|
|
}
|
|
|
|
void
|
|
gst_gl_window_send_key_event (GstGLWindow * window, const char *event_type,
|
|
const char *key_str)
|
|
{
|
|
g_signal_emit (window, gst_gl_window_signals[EVENT_KEY_SIGNAL], 0,
|
|
event_type, key_str);
|
|
}
|
|
|
|
void
|
|
gst_gl_window_send_mouse_event (GstGLWindow * window, const char *event_type,
|
|
int button, double posx, double posy)
|
|
{
|
|
g_signal_emit (window, gst_gl_window_signals[EVENT_MOUSE_SIGNAL], 0,
|
|
event_type, button, posx, posy);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_handle_events:
|
|
* @window: a #GstGLWindow
|
|
* @handle_events: a #gboolean indicating if events should be handled or not.
|
|
*
|
|
* Tell a @window that it should handle events from the window system. These
|
|
* events are forwarded upstream as navigation events. In some window systems
|
|
* events are not propagated in the window hierarchy if a client is listening
|
|
* for them. This method allows you to disable events handling completely
|
|
* from the @window.
|
|
*/
|
|
void
|
|
gst_gl_window_handle_events (GstGLWindow * window, gboolean handle_events)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
|
|
if (window_class->handle_events)
|
|
window_class->handle_events (window, handle_events);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_set_render_rectangle:
|
|
* @window: a #GstGLWindow
|
|
* @x: x position
|
|
* @y: y position
|
|
* @width: width
|
|
* @height: height
|
|
*
|
|
* Tell a @window that it should render into a specific region of the window
|
|
* according to the #GstVideoOverlay interface.
|
|
*
|
|
* Returns: whether the specified region could be set
|
|
*/
|
|
gboolean
|
|
gst_gl_window_set_render_rectangle (GstGLWindow * window, gint x, gint y,
|
|
gint width, gint height)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
gboolean ret = FALSE;
|
|
|
|
g_return_val_if_fail (GST_IS_GL_WINDOW (window), FALSE);
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
|
|
/* When x/y is smaller then reset the render rectangle */
|
|
if (x < 0 || y < 0) {
|
|
x = y = 0;
|
|
width = window->priv->surface_width;
|
|
height = window->priv->surface_height;
|
|
}
|
|
|
|
if (x < 0 || y < 0 || width <= 0 || height <= 0)
|
|
return FALSE;
|
|
|
|
if (window_class->set_render_rectangle)
|
|
ret = window_class->set_render_rectangle (window, x, y, width, height);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_queue_resize:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Queue resizing of @window.
|
|
*/
|
|
void
|
|
gst_gl_window_queue_resize (GstGLWindow * window)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
|
|
window->queue_resize = TRUE;
|
|
if (window_class->queue_resize)
|
|
window_class->queue_resize (window);
|
|
}
|
|
|
|
struct resize_data
|
|
{
|
|
GstGLWindow *window;
|
|
guint width, height;
|
|
};
|
|
|
|
static void
|
|
_on_resize (gpointer data)
|
|
{
|
|
struct resize_data *resize = data;
|
|
|
|
resize->window->resize (resize->window->resize_data, resize->width,
|
|
resize->height);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_resize:
|
|
* @window: a #GstGLWindow
|
|
* @width: new width
|
|
* @height: new height
|
|
*
|
|
* Resize @window to the given @width and @height.
|
|
*/
|
|
void
|
|
gst_gl_window_resize (GstGLWindow * window, guint width, guint height)
|
|
{
|
|
g_return_if_fail (GST_IS_GL_WINDOW (window));
|
|
|
|
if (window->resize) {
|
|
struct resize_data resize = { 0, };
|
|
|
|
resize.window = window;
|
|
resize.width = width;
|
|
resize.height = height;
|
|
|
|
gst_gl_window_send_message (window, (GstGLWindowCB) _on_resize, &resize);
|
|
}
|
|
|
|
window->priv->surface_width = width;
|
|
window->priv->surface_height = height;
|
|
|
|
window->queue_resize = FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_controls_viewport:
|
|
* @window: a #GstGLWindow
|
|
*
|
|
* Checks if @window controls the GL viewport.
|
|
*
|
|
* Returns: %TRUE if @window controls the GL viewport, otherwise %FALSE
|
|
*
|
|
* Since: 1.16
|
|
*/
|
|
gboolean
|
|
gst_gl_window_controls_viewport (GstGLWindow * window)
|
|
{
|
|
GstGLWindowClass *window_class;
|
|
|
|
g_return_val_if_fail (GST_IS_GL_WINDOW (window), FALSE);
|
|
window_class = GST_GL_WINDOW_GET_CLASS (window);
|
|
|
|
if (!window_class->controls_viewport)
|
|
return FALSE;
|
|
|
|
return window_class->controls_viewport (window);
|
|
}
|
|
|
|
static GType gst_gl_dummy_window_get_type (void);
|
|
|
|
G_DEFINE_TYPE (GstGLDummyWindow, gst_gl_dummy_window, GST_TYPE_GL_WINDOW);
|
|
|
|
static void
|
|
gst_gl_dummy_window_set_window_handle (GstGLWindow * window, guintptr handle)
|
|
{
|
|
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
|
|
|
dummy->handle = handle;
|
|
}
|
|
|
|
static guintptr
|
|
gst_gl_dummy_window_get_window_handle (GstGLWindow * window)
|
|
{
|
|
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
|
|
|
return (guintptr) dummy->handle;
|
|
}
|
|
|
|
static guintptr
|
|
gst_gl_dummy_window_get_display (GstGLWindow * window)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
gst_gl_dummy_window_class_init (GstGLDummyWindowClass * klass)
|
|
{
|
|
GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
|
|
|
|
window_class->get_display =
|
|
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_get_display);
|
|
window_class->get_window_handle =
|
|
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_get_window_handle);
|
|
window_class->set_window_handle =
|
|
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_set_window_handle);
|
|
}
|
|
|
|
static void
|
|
gst_gl_dummy_window_init (GstGLDummyWindow * dummy)
|
|
{
|
|
dummy->handle = 0;
|
|
}
|
|
|
|
static GstGLDummyWindow *
|
|
gst_gl_dummy_window_new (void)
|
|
{
|
|
GstGLDummyWindow *window;
|
|
|
|
window = g_object_new (gst_gl_dummy_window_get_type (), NULL);
|
|
gst_object_ref_sink (window);
|
|
|
|
return window;
|
|
}
|