mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-29 11:40:38 +00:00
129 lines
3.8 KiB
C
129 lines
3.8 KiB
C
/*
|
|
* GStreamer Wayland Library
|
|
* Copyright (C) 2014 Collabora Ltd.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/wayland/wayland.h>
|
|
#include <gst/video/videooverlay.h>
|
|
|
|
gboolean
|
|
gst_is_wayland_display_handle_need_context_message (GstMessage * msg)
|
|
{
|
|
const gchar *type = NULL;
|
|
|
|
g_return_val_if_fail (GST_IS_MESSAGE (msg), FALSE);
|
|
|
|
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_NEED_CONTEXT &&
|
|
gst_message_parse_context_type (msg, &type)) {
|
|
return !g_strcmp0 (type, GST_WAYLAND_DISPLAY_HANDLE_CONTEXT_TYPE);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
GstContext *
|
|
gst_wayland_display_handle_context_new (struct wl_display * display)
|
|
{
|
|
GstContext *context =
|
|
gst_context_new (GST_WAYLAND_DISPLAY_HANDLE_CONTEXT_TYPE, TRUE);
|
|
gst_structure_set (gst_context_writable_structure (context),
|
|
"handle", G_TYPE_POINTER, display, NULL);
|
|
return context;
|
|
}
|
|
|
|
struct wl_display *
|
|
gst_wayland_display_handle_context_get_handle (GstContext * context)
|
|
{
|
|
const GstStructure *s;
|
|
struct wl_display *display;
|
|
|
|
g_return_val_if_fail (GST_IS_CONTEXT (context), NULL);
|
|
|
|
s = gst_context_get_structure (context);
|
|
gst_structure_get (s, "handle", G_TYPE_POINTER, &display, NULL);
|
|
return display;
|
|
}
|
|
|
|
|
|
G_DEFINE_INTERFACE (GstWaylandVideo, gst_wayland_video, GST_TYPE_VIDEO_OVERLAY);
|
|
|
|
static void
|
|
gst_wayland_video_default_init (GstWaylandVideoInterface * klass)
|
|
{
|
|
(void) klass;
|
|
}
|
|
|
|
/**
|
|
* gst_wayland_video_begin_geometry_change:
|
|
*
|
|
* Notifies the video sink that we are about to change its
|
|
* geometry (probably using set_render_rectangle()). This is useful
|
|
* in order to allow the sink to synchronize resizing/moving of the
|
|
* video area with the parent surface and avoid glitches, in cases
|
|
* where the video area is being painted asynchronously from another
|
|
* thread, like in waylandsink.
|
|
*
|
|
* Please note that any calls to this method MUST be matched by
|
|
* calls to end_geometry_change() and AFTER the parent surface has
|
|
* commited its geometry changes.
|
|
*/
|
|
void
|
|
gst_wayland_video_begin_geometry_change (GstWaylandVideo * video)
|
|
{
|
|
GstWaylandVideoInterface *iface;
|
|
|
|
g_return_if_fail (video != NULL);
|
|
g_return_if_fail (GST_IS_WAYLAND_VIDEO (video));
|
|
|
|
iface = GST_WAYLAND_VIDEO_GET_INTERFACE (video);
|
|
|
|
if (iface->begin_geometry_change) {
|
|
iface->begin_geometry_change (video);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_wayland_video_end_geometry_change:
|
|
*
|
|
* Notifies the video sink that we just finished changing the
|
|
* geometry of both itself and its parent surface. This should
|
|
* have been earlier preceeded by a call to begin_geometry_change()
|
|
* which notified the sink before any of these changes had happened.
|
|
*
|
|
* It is important to call this method only AFTER the parent surface
|
|
* has commited its geometry changes, otherwise no synchronization
|
|
* is actually achieved.
|
|
*/
|
|
void
|
|
gst_wayland_video_end_geometry_change (GstWaylandVideo * video)
|
|
{
|
|
GstWaylandVideoInterface *iface;
|
|
|
|
g_return_if_fail (video != NULL);
|
|
g_return_if_fail (GST_IS_WAYLAND_VIDEO (video));
|
|
|
|
iface = GST_WAYLAND_VIDEO_GET_INTERFACE (video);
|
|
|
|
if (iface->end_geometry_change) {
|
|
iface->end_geometry_change (video);
|
|
}
|
|
}
|