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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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This fixes an X server side memory leak, this is normally not severe but in some circumstances where the glwindow is recreated frequently it can result in a very bad memory leak. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4047>
674 lines
20 KiB
C
674 lines
20 KiB
C
/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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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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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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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/gst.h>
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#include <locale.h>
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#include "gstglwindow_x11.h"
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#include "gstgldisplay_x11.h"
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#include "../gstglwindow_private.h"
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/* for XkbKeycodeToKeysym */
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#include <X11/XKBlib.h>
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#define GST_CAT_DEFAULT gst_gl_window_debug
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G_GNUC_INTERNAL
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gboolean gst_gl_window_x11_handle_event (GstGLWindowX11 * window_x11,
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xcb_generic_event_t * event);
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/* X error trap */
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static int TrappedErrorCode = 0;
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static int (*old_error_handler) (Display *, XErrorEvent *);
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enum
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{
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ARG_0,
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ARG_DISPLAY
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};
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struct _GstGLWindowX11Private
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{
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gboolean activate;
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gboolean activate_result;
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gint preferred_width;
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gint preferred_height;
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gboolean handle_events;
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Colormap internal_colormap;
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GstVideoRectangle render_rect;
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};
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#define gst_gl_window_x11_parent_class parent_class
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G_DEFINE_TYPE_WITH_PRIVATE (GstGLWindowX11, gst_gl_window_x11,
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GST_TYPE_GL_WINDOW);
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static guintptr gst_gl_window_x11_get_display (GstGLWindow * window);
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guintptr gst_gl_window_x11_get_gl_context (GstGLWindow * window);
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gboolean gst_gl_window_x11_activate (GstGLWindow * window, gboolean activate);
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static void gst_gl_window_x11_set_window_handle (GstGLWindow * window,
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guintptr handle);
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static gboolean gst_gl_window_x11_set_render_rectangle (GstGLWindow * window,
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int x, int y, int width, int height);
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static guintptr gst_gl_window_x11_get_window_handle (GstGLWindow * window);
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static void gst_gl_window_x11_set_preferred_size (GstGLWindow * window,
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gint width, gint height);
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static void gst_gl_window_x11_show (GstGLWindow * window);
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static void gst_gl_window_x11_draw (GstGLWindow * window);
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gboolean gst_gl_window_x11_create_context (GstGLWindow * window,
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GstGLAPI gl_api, guintptr external_gl_context, GError ** error);
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static gboolean gst_gl_window_x11_open (GstGLWindow * window, GError ** error);
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static void gst_gl_window_x11_close (GstGLWindow * window);
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static void gst_gl_window_x11_handle_events (GstGLWindow * window,
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gboolean handle_events);
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static void
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gst_gl_window_x11_finalize (GObject * object)
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{
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_gl_window_x11_class_init (GstGLWindowX11Class * klass)
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{
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GObjectClass *obj_class = G_OBJECT_CLASS (klass);
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GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
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obj_class->finalize = gst_gl_window_x11_finalize;
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window_class->get_display = GST_DEBUG_FUNCPTR (gst_gl_window_x11_get_display);
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window_class->set_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_x11_set_window_handle);
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window_class->set_render_rectangle =
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GST_DEBUG_FUNCPTR (gst_gl_window_x11_set_render_rectangle);
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window_class->get_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_x11_get_window_handle);
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window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_x11_draw);
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window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_x11_open);
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window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_x11_close);
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window_class->handle_events =
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GST_DEBUG_FUNCPTR (gst_gl_window_x11_handle_events);
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window_class->set_preferred_size =
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GST_DEBUG_FUNCPTR (gst_gl_window_x11_set_preferred_size);
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window_class->show = GST_DEBUG_FUNCPTR (gst_gl_window_x11_show);
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}
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static void
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gst_gl_window_x11_init (GstGLWindowX11 * window)
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{
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window->priv = gst_gl_window_x11_get_instance_private (window);
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}
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/* Must be called in the gl thread */
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GstGLWindowX11 *
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gst_gl_window_x11_new (GstGLDisplay * display)
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{
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GstGLWindowX11 *window;
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if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_X11)
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== GST_GL_DISPLAY_TYPE_NONE) {
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GST_INFO ("Wrong display type %u for this window type %u", display->type,
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GST_GL_DISPLAY_TYPE_X11);
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return NULL;
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}
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window = g_object_new (GST_TYPE_GL_WINDOW_X11, NULL);
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gst_object_ref_sink (window);
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return window;
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}
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static gboolean
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gst_gl_window_x11_open (GstGLWindow * window, GError ** error)
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{
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GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
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GstGLDisplayX11 *display_x11 = (GstGLDisplayX11 *) window->display;
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window_x11->device = display_x11->display;
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// window_x11->device = XOpenDisplay (display_x11->name);
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if (window_x11->device == NULL) {
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g_set_error (error, GST_GL_WINDOW_ERROR,
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GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
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"Failed to connect to X display server");
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goto failure;
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}
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GST_LOG ("gl device id: %ld", (gulong) window_x11->device);
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window_x11->screen = DefaultScreenOfDisplay (window_x11->device);
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window_x11->screen_num = DefaultScreen (window_x11->device);
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window_x11->visual =
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DefaultVisual (window_x11->device, window_x11->screen_num);
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window_x11->root = DefaultRootWindow (window_x11->device);
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window_x11->white = XWhitePixel (window_x11->device, window_x11->screen_num);
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window_x11->black = XBlackPixel (window_x11->device, window_x11->screen_num);
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window_x11->depth = DefaultDepthOfScreen (window_x11->screen);
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GST_LOG ("gl root id: %lud", (gulong) window_x11->root);
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window_x11->device_width =
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DisplayWidth (window_x11->device, window_x11->screen_num);
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window_x11->device_height =
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DisplayHeight (window_x11->device, window_x11->screen_num);
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window_x11->allow_extra_expose_events = TRUE;
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return GST_GL_WINDOW_CLASS (parent_class)->open (window, error);
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failure:
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return FALSE;
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}
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gboolean
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gst_gl_window_x11_create_window (GstGLWindowX11 * window_x11)
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{
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XSetWindowAttributes win_attr;
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XTextProperty text_property;
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XWMHints wm_hints;
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unsigned long mask;
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const gchar *title = "OpenGL renderer";
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Atom wm_atoms[1];
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gint x = 0, y = 0, width = 1, height = 1;
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if (window_x11->visual_info->visual != window_x11->visual)
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GST_LOG ("selected visual is different from the default");
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GST_LOG ("visual XID:%d, screen:%d, visualid:%d, depth:%d, class:%d, "
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"red_mask:%ld, green_mask:%ld, blue_mask:%ld bpp:%d",
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(gint) XVisualIDFromVisual (window_x11->visual_info->visual),
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window_x11->visual_info->screen, (gint) window_x11->visual_info->visualid,
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window_x11->visual_info->depth, window_x11->visual_info->class,
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window_x11->visual_info->red_mask, window_x11->visual_info->green_mask,
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window_x11->visual_info->blue_mask,
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window_x11->visual_info->bits_per_rgb);
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win_attr.event_mask =
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StructureNotifyMask | ExposureMask | VisibilityChangeMask;
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win_attr.do_not_propagate_mask = NoEventMask;
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win_attr.background_pixmap = None;
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win_attr.background_pixel = 0;
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win_attr.border_pixel = 0;
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window_x11->priv->internal_colormap = win_attr.colormap =
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XCreateColormap (window_x11->device, window_x11->root,
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window_x11->visual_info->visual, AllocNone);
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mask = CWBackPixmap | CWBorderPixel | CWColormap | CWEventMask;
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window_x11->internal_win_id =
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XCreateWindow (window_x11->device,
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window_x11->parent_win ? window_x11->parent_win : window_x11->root,
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x, y, width, height, 0,
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window_x11->visual_info->depth, InputOutput,
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window_x11->visual_info->visual, mask, &win_attr);
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gst_gl_window_x11_handle_events (GST_GL_WINDOW (window_x11),
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window_x11->priv->handle_events);
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XSync (window_x11->device, FALSE);
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XSetWindowBackgroundPixmap (window_x11->device,
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window_x11->internal_win_id, None);
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GST_LOG ("gl window id: %lud", (gulong) window_x11->internal_win_id);
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GST_LOG ("gl window props: x:%d y:%d", x, y);
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wm_atoms[0] = XInternAtom (window_x11->device, "WM_DELETE_WINDOW", True);
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if (wm_atoms[0] == None)
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GST_DEBUG ("Cannot create WM_DELETE_WINDOW");
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XSetWMProtocols (window_x11->device, window_x11->internal_win_id,
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wm_atoms, 1);
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wm_hints.flags = StateHint;
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wm_hints.initial_state = NormalState;
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wm_hints.input = False;
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XStringListToTextProperty ((char **) &title, 1, &text_property);
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XSetWMProperties (window_x11->device, window_x11->internal_win_id,
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&text_property, &text_property, 0, 0, NULL, &wm_hints, NULL);
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XFree (text_property.value);
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return TRUE;
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}
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static void
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gst_gl_window_x11_close (GstGLWindow * window)
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{
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GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
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if (window_x11->device) {
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if (window_x11->internal_win_id) {
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XUnmapWindow (window_x11->device, window_x11->internal_win_id);
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XDestroyWindow (window_x11->device, window_x11->internal_win_id);
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XFreeColormap (window_x11->device, window_x11->priv->internal_colormap);
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/* Ensure everything is sent immediatly */
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XSync (window_x11->device, FALSE);
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}
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XFree (window_x11->visual_info);
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GST_DEBUG ("display receiver closed");
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}
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window_x11->running = FALSE;
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GST_GL_WINDOW_CLASS (parent_class)->close (window);
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}
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/* called by the gl thread */
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static void
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gst_gl_window_x11_set_window_handle (GstGLWindow * window, guintptr id)
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{
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GstGLWindowX11 *window_x11;
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gint x, y, width, height;
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window_x11 = GST_GL_WINDOW_X11 (window);
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window_x11->parent_win = (Window) id;
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if (window_x11->priv->render_rect.w > 0 &&
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window_x11->priv->render_rect.h > 0) {
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x = window_x11->priv->render_rect.x;
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y = window_x11->priv->render_rect.y;
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width = window_x11->priv->render_rect.w;
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height = window_x11->priv->render_rect.h;
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} else {
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x = y = 0;
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if (window_x11->parent_win) {
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XWindowAttributes attr;
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XGetWindowAttributes (window_x11->device, window_x11->parent_win, &attr);
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width = attr.width;
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height = attr.height;
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} else {
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width = window_x11->priv->preferred_width;
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height = window_x11->priv->preferred_height;
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}
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}
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XResizeWindow (window_x11->device, window_x11->internal_win_id,
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width, height);
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XReparentWindow (window_x11->device, window_x11->internal_win_id,
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window_x11->parent_win, x, y);
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XSync (window_x11->device, FALSE);
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}
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struct SetRenderRectangle
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{
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GstGLWindowX11 *window_x11;
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GstVideoRectangle rect;
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};
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static void
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_free_set_render_rectangle (struct SetRenderRectangle *render)
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{
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if (render) {
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if (render->window_x11)
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gst_object_unref (render->window_x11);
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g_free (render);
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}
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}
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static void
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_set_render_rectangle (gpointer data)
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{
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struct SetRenderRectangle *render = data;
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GST_LOG_OBJECT (render->window_x11, "setting render rectangle %i,%i+%ix%i",
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render->rect.x, render->rect.y, render->rect.w, render->rect.h);
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if (render->window_x11->internal_win_id)
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XMoveResizeWindow (render->window_x11->device,
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render->window_x11->internal_win_id, render->rect.x, render->rect.y,
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render->rect.w, render->rect.h);
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if (render->window_x11->device)
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XSync (render->window_x11->device, FALSE);
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render->window_x11->priv->render_rect = render->rect;
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}
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static gboolean
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gst_gl_window_x11_set_render_rectangle (GstGLWindow * window,
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int x, int y, int width, int height)
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{
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GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
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struct SetRenderRectangle *render;
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render = g_new0 (struct SetRenderRectangle, 1);
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render->window_x11 = gst_object_ref (window_x11);
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render->rect.x = x;
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render->rect.y = y;
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render->rect.w = width;
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render->rect.h = height;
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gst_gl_window_send_message_async (window,
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(GstGLWindowCB) _set_render_rectangle, render,
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(GDestroyNotify) _free_set_render_rectangle);
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return TRUE;
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}
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static guintptr
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gst_gl_window_x11_get_window_handle (GstGLWindow * window)
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{
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GstGLWindowX11 *window_x11;
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window_x11 = GST_GL_WINDOW_X11 (window);
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return window_x11->internal_win_id;
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}
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static void
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gst_gl_window_x11_set_preferred_size (GstGLWindow * window, gint width,
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gint height)
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{
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GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
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window_x11->priv->preferred_width = width;
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window_x11->priv->preferred_height = height;
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}
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static void
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_show_window (GstGLWindow * window)
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{
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GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
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guint width = window_x11->priv->preferred_width;
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guint height = window_x11->priv->preferred_height;
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if (!window_x11->visible) {
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if (!window_x11->parent_win) {
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XResizeWindow (window_x11->device, window_x11->internal_win_id,
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width, height);
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gst_gl_window_resize (window, width, height);
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}
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XMapWindow (window_x11->device, window_x11->internal_win_id);
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XSync (window_x11->device, FALSE);
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window_x11->visible = TRUE;
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}
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}
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static void
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gst_gl_window_x11_show (GstGLWindow * window)
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{
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gst_gl_window_send_message (window, (GstGLWindowCB) _show_window, window);
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}
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static void
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_context_draw (GstGLContext * context, GstGLWindow * window)
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{
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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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draw_cb (gpointer data)
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{
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GstGLWindowX11 *window_x11 = data;
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GstGLWindow *window = GST_GL_WINDOW (window_x11);
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guint width, height;
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XWindowAttributes attr;
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if (window_x11->internal_win_id) {
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gboolean need_resize = FALSE;
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XGetWindowAttributes (window_x11->device, window_x11->internal_win_id,
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&attr);
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GST_TRACE_OBJECT (window, "window size %ux%u", attr.width, attr.height);
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if (window_x11->parent_win &&
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(window_x11->priv->render_rect.w <= 0 ||
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window_x11->priv->render_rect.h <= 0)) {
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XWindowAttributes attr_parent;
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XGetWindowAttributes (window_x11->device, window_x11->parent_win,
|
|
&attr_parent);
|
|
GST_TRACE_OBJECT (window, "parent window size %ux%u", attr_parent.width,
|
|
attr_parent.height);
|
|
|
|
if (attr.width != attr_parent.width || attr.height != attr_parent.height) {
|
|
XMoveResizeWindow (window_x11->device, window_x11->internal_win_id,
|
|
0, 0, attr_parent.width, attr_parent.height);
|
|
XSync (window_x11->device, FALSE);
|
|
|
|
attr.width = attr_parent.width;
|
|
attr.height = attr_parent.height;
|
|
|
|
GST_LOG ("parent resize: %d, %d",
|
|
attr_parent.width, attr_parent.height);
|
|
need_resize = TRUE;
|
|
}
|
|
}
|
|
|
|
gst_gl_window_get_surface_dimensions (window, &width, &height);
|
|
if (attr.width != width || attr.height != height)
|
|
need_resize = TRUE;
|
|
|
|
if (need_resize)
|
|
gst_gl_window_queue_resize (window);
|
|
|
|
if (window_x11->allow_extra_expose_events) {
|
|
if (window->queue_resize)
|
|
gst_gl_window_resize (window, width, height);
|
|
|
|
if (window->draw) {
|
|
GstGLContext *context = gst_gl_window_get_context (window);
|
|
|
|
_context_draw (context, window);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Not called by the gl thread */
|
|
static void
|
|
gst_gl_window_x11_draw (GstGLWindow * window)
|
|
{
|
|
gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
|
|
}
|
|
|
|
static void
|
|
gst_gl_window_x11_handle_events (GstGLWindow * window, gboolean handle_events)
|
|
{
|
|
GstGLWindowX11 *window_x11;
|
|
|
|
g_return_if_fail (window != NULL);
|
|
|
|
window_x11 = GST_GL_WINDOW_X11 (window);
|
|
|
|
window_x11->priv->handle_events = handle_events;
|
|
|
|
if (window_x11->internal_win_id) {
|
|
if (handle_events) {
|
|
XSelectInput (window_x11->device, window_x11->internal_win_id,
|
|
StructureNotifyMask | ExposureMask | VisibilityChangeMask |
|
|
PointerMotionMask | KeyPressMask | KeyReleaseMask | ButtonPressMask |
|
|
ButtonReleaseMask);
|
|
} else {
|
|
XSelectInput (window_x11->device, window_x11->internal_win_id,
|
|
StructureNotifyMask | ExposureMask | VisibilityChangeMask);
|
|
}
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gst_gl_window_x11_handle_event (GstGLWindowX11 * window_x11,
|
|
xcb_generic_event_t * event)
|
|
{
|
|
GstGLWindow *window = GST_GL_WINDOW (window_x11);
|
|
GstGLDisplayX11 *display_x11 = GST_GL_DISPLAY_X11 (window->display);
|
|
xcb_connection_t *connection = display_x11->xcb_connection;
|
|
uint8_t event_code = event->response_type & 0x7f;
|
|
|
|
switch (event_code) {
|
|
case XCB_CLIENT_MESSAGE:{
|
|
xcb_client_message_event_t *client_event;
|
|
xcb_intern_atom_cookie_t cookie;
|
|
xcb_intern_atom_reply_t *reply;
|
|
|
|
client_event = (xcb_client_message_event_t *) event;
|
|
cookie = xcb_intern_atom (connection, 0, 16, "WM_DELETE_WINDOW");
|
|
reply = xcb_intern_atom_reply (connection, cookie, 0);
|
|
|
|
if (client_event->data.data32[0] == reply->atom) {
|
|
GST_INFO_OBJECT (window_x11, "Close requested");
|
|
|
|
if (window->close)
|
|
window->close (window->close_data);
|
|
|
|
gst_gl_display_remove_window (GST_GL_DISPLAY (display_x11),
|
|
GST_GL_WINDOW (window_x11));
|
|
}
|
|
|
|
g_free (reply);
|
|
break;
|
|
}
|
|
case XCB_CONFIGURE_NOTIFY:{
|
|
xcb_configure_notify_event_t *configure_event;
|
|
|
|
configure_event = (xcb_configure_notify_event_t *) event;
|
|
|
|
gst_gl_window_resize (window, configure_event->width,
|
|
configure_event->height);
|
|
|
|
gst_gl_window_draw (window);
|
|
break;
|
|
}
|
|
case XCB_EXPOSE:{
|
|
xcb_expose_event_t *expose_event = (xcb_expose_event_t *) event;
|
|
/* non-zero means that other Expose follows
|
|
* so just wait for the last one
|
|
* in theory we should not receive non-zero because
|
|
* we have no sub areas here but just in case */
|
|
if (expose_event->count != 0)
|
|
break;
|
|
|
|
gst_gl_window_draw (window);
|
|
break;
|
|
}
|
|
case XCB_KEY_PRESS:
|
|
case XCB_KEY_RELEASE:{
|
|
xcb_key_press_event_t *kp = (xcb_key_press_event_t *) event;
|
|
const gchar *event_type_str;
|
|
gchar *key_str;
|
|
KeySym keysym;
|
|
|
|
keysym = XkbKeycodeToKeysym (window_x11->device, kp->detail, 0, 0);
|
|
key_str = XKeysymToString (keysym);
|
|
|
|
if (event_code == XCB_KEY_PRESS)
|
|
event_type_str = "key-press";
|
|
else
|
|
event_type_str = "key-release";
|
|
|
|
gst_gl_window_send_key_event (window, event_type_str, key_str);
|
|
break;
|
|
}
|
|
case XCB_BUTTON_PRESS:
|
|
case XCB_BUTTON_RELEASE:{
|
|
xcb_button_press_event_t *bp = (xcb_button_press_event_t *) event;
|
|
const gchar *event_type_str;
|
|
|
|
if (event_code == XCB_BUTTON_PRESS)
|
|
event_type_str = "mouse-button-press";
|
|
else
|
|
event_type_str = "mouse-button-release";
|
|
|
|
gst_gl_window_send_mouse_event (window, event_type_str, bp->detail,
|
|
(double) bp->event_x, (double) bp->event_y);
|
|
break;
|
|
}
|
|
case XCB_MOTION_NOTIFY:{
|
|
xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *) event;
|
|
|
|
gst_gl_window_send_mouse_event (window, "mouse-move", 0,
|
|
(double) motion->event_x, (double) motion->event_y);
|
|
break;
|
|
}
|
|
default:
|
|
GST_TRACE ("unhandled XCB event: %u", event_code);
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static int
|
|
error_handler (Display * xdpy, XErrorEvent * error)
|
|
{
|
|
TrappedErrorCode = error->error_code;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_x11_trap_x_errors:
|
|
*
|
|
* Traps every X error until gst_gl_window_x11_untrap_x_errors() is called.
|
|
*/
|
|
void
|
|
gst_gl_window_x11_trap_x_errors (void)
|
|
{
|
|
TrappedErrorCode = 0;
|
|
old_error_handler = XSetErrorHandler (error_handler);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_window_x11_untrap_x_errors:
|
|
*
|
|
* Removes the X error trap and returns the current status.
|
|
*
|
|
* Return value: the trapped error code, or 0 for success
|
|
*/
|
|
gint
|
|
gst_gl_window_x11_untrap_x_errors (void)
|
|
{
|
|
XSetErrorHandler (old_error_handler);
|
|
|
|
return TrappedErrorCode;
|
|
}
|
|
|
|
static guintptr
|
|
gst_gl_window_x11_get_display (GstGLWindow * window)
|
|
{
|
|
GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
|
|
|
|
return (guintptr) window_x11->device;
|
|
}
|