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0d1d42b205
GstGLDisplayX11 holds the display connection and name. Each thread requires it's own X11 Display connection (initialised from name) due to the fact that we do not want to call XInitThreads(). Doing so would result in segfaults when integrating with GUI toolkits Gtk, Qt, etc. The Display connection is for OpenGL platforms where a constant display is required in order to share contexts (egl). In the case of a wrapped context (added later), we do not have GstGLWindow to retreive the display from so a 'master' connection is used instead.
125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/*
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* GStreamer
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* Copyright (C) 2013 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gl/x11/gstgldisplay_x11.h>
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GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
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#define GST_CAT_DEFAULT gst_gl_display_debug
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G_DEFINE_TYPE (GstGLDisplayX11, gst_gl_display_x11, GST_TYPE_GL_DISPLAY);
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static void gst_gl_display_x11_finalize (GObject * object);
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static guintptr gst_gl_display_x11_get_handle (GstGLDisplay * display);
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static void
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gst_gl_display_x11_class_init (GstGLDisplayX11Class * klass)
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{
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GST_GL_DISPLAY_CLASS (klass)->get_handle =
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GST_DEBUG_FUNCPTR (gst_gl_display_x11_get_handle);
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G_OBJECT_CLASS (klass)->finalize = gst_gl_display_x11_finalize;
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}
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static void
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gst_gl_display_x11_init (GstGLDisplayX11 * display_x11)
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{
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GstGLDisplay *display = (GstGLDisplay *) display_x11;
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display->type = GST_GL_DISPLAY_TYPE_X11;
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display_x11->foreign_display = FALSE;
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}
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static void
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gst_gl_display_x11_finalize (GObject * object)
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{
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GstGLDisplayX11 *display_x11 = GST_GL_DISPLAY_X11 (object);
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if (display_x11->name)
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g_free (display_x11->name);
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if (!display_x11->foreign_display && display_x11->display) {
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XCloseDisplay (display_x11->display);
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}
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G_OBJECT_CLASS (gst_gl_display_x11_parent_class)->finalize (object);
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}
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/**
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* gst_gl_display_x11_new:
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* @name: (allow-none): a display name
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*
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* Create a new #GstGLDisplayX11 from the x11 display name. See XOpenDisplay()
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* for details on what is a valid name.
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*
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* Returns: (transfer full): a new #GstGLDisplayX11 or %NULL
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*/
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GstGLDisplayX11 *
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gst_gl_display_x11_new (const gchar * name)
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{
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GstGLDisplayX11 *ret;
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GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
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ret = g_object_new (GST_TYPE_GL_DISPLAY_X11, NULL);
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ret->name = g_strdup (name);
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ret->display = XOpenDisplay (ret->name);
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if (!ret->display) {
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GST_ERROR ("Failed to open X11 display connection with name, \'%s\'", name);
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}
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return ret;
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}
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/**
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* gst_gl_display_x11_new_with_display:
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* @display: an existing, x11 display
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*
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* Creates a new display connection from a X11 Display.
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*
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* Returns: (transfer full): a new #GstGLDisplayX11
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*/
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GstGLDisplayX11 *
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gst_gl_display_x11_new_with_display (Display * display)
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{
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GstGLDisplayX11 *ret;
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g_return_val_if_fail (display != NULL, NULL);
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GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
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ret = g_object_new (GST_TYPE_GL_DISPLAY_X11, NULL);
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ret->name = g_strdup (DisplayString (display));
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ret->display = display;
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ret->foreign_display = TRUE;
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return ret;
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}
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static guintptr
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gst_gl_display_x11_get_handle (GstGLDisplay * display)
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{
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return (guintptr) GST_GL_DISPLAY_X11 (display)->display;
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}
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