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2ae381e2a3
When waylandsink is used on some other thread than the main wayland client thread, the waylandsink implementation is vulnerable to a condition related to registry and surface events which handled in seperated event queue. The race that may happen is that after a proxy is created, but before the queue is set, events meant to be emitted via the yet to set queue may already have been queued on the wrong queue. Wayland 1.11 introduced new API that allows creating a proxy wrappper which can help to avoid this race condition.
96 lines
3.2 KiB
C
96 lines
3.2 KiB
C
/* GStreamer Wayland video sink
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*
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* Copyright (C) 2014 Collabora Ltd.
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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 Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*/
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#ifndef __GST_WL_DISPLAY_H__
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#define __GST_WL_DISPLAY_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <wayland-client.h>
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#include "viewporter-client-protocol.h"
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#include "linux-dmabuf-unstable-v1-client-protocol.h"
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#include "fullscreen-shell-unstable-v1-client-protocol.h"
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G_BEGIN_DECLS
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#define GST_TYPE_WL_DISPLAY (gst_wl_display_get_type ())
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#define GST_WL_DISPLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_WL_DISPLAY, GstWlDisplay))
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#define GST_IS_WL_DISPLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_WL_DISPLAY))
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#define GST_WL_DISPLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_WL_DISPLAY, GstWlDisplayClass))
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#define GST_IS_WL_DISPLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_WL_DISPLAY))
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#define GST_WL_DISPLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_WL_DISPLAY, GstWlDisplayClass))
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typedef struct _GstWlDisplay GstWlDisplay;
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typedef struct _GstWlDisplayClass GstWlDisplayClass;
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struct _GstWlDisplay
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{
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GObject parent_instance;
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/* public objects */
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struct wl_display *display;
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struct wl_display *display_wrapper;
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struct wl_event_queue *queue;
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/* globals */
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struct wl_registry *registry;
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struct wl_compositor *compositor;
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struct wl_subcompositor *subcompositor;
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struct wl_shell *shell;
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struct zwp_fullscreen_shell_v1 *fullscreen_shell;
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struct wl_shm *shm;
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struct wp_viewporter *viewporter;
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struct zwp_linux_dmabuf_v1 *dmabuf;
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GArray *shm_formats;
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GArray *dmabuf_formats;
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/* private */
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gboolean own_display;
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GThread *thread;
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GstPoll *wl_fd_poll;
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GMutex buffers_mutex;
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GHashTable *buffers;
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gboolean shutting_down;
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};
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struct _GstWlDisplayClass
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{
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GObjectClass parent_class;
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};
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GType gst_wl_display_get_type (void);
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GstWlDisplay *gst_wl_display_new (const gchar * name, GError ** error);
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GstWlDisplay *gst_wl_display_new_existing (struct wl_display * display,
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gboolean take_ownership, GError ** error);
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/* see wlbuffer.c for explanation */
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void gst_wl_display_register_buffer (GstWlDisplay * self, gpointer buf);
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void gst_wl_display_unregister_buffer (GstWlDisplay * self, gpointer buf);
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gboolean gst_wl_display_check_format_for_shm (GstWlDisplay * display,
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GstVideoFormat format);
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gboolean gst_wl_display_check_format_for_dmabuf (GstWlDisplay * display,
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GstVideoFormat format);
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G_END_DECLS
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#endif /* __GST_WL_DISPLAY_H__ */
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