mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8e695c8fdb
It will help us to distinguish from other Wayland shell surface (such as XDG-shell) later on.
580 lines
17 KiB
C
580 lines
17 KiB
C
/*
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* gstvaapiwindow_wayland.c - VA/Wayland window abstraction
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*
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* Copyright (C) 2012-2013 Intel Corporation
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* Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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/**
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* SECTION:gstvaapiwindow_wayland
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* @short_description: VA/Wayland window abstraction
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*/
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#include "sysdeps.h"
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#include "gstvaapicompat.h"
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#include "gstvaapiobject_priv.h"
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#include "gstvaapiwindow_wayland.h"
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#include "gstvaapiwindow_priv.h"
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#include "gstvaapidisplay_wayland.h"
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#include "gstvaapidisplay_wayland_priv.h"
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#include "gstvaapiutils.h"
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#include "gstvaapifilter.h"
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#include "gstvaapisurfacepool.h"
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GST_DEBUG_CATEGORY_EXTERN (gst_debug_vaapi_window);
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#define GST_CAT_DEFAULT gst_debug_vaapi_window
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#define GST_VAAPI_WINDOW_WAYLAND_CAST(obj) \
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((GstVaapiWindowWayland *)(obj))
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#define GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(obj) \
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gst_vaapi_window_wayland_get_instance_private (GST_VAAPI_WINDOW_WAYLAND_CAST (obj))
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#define GST_VAAPI_WINDOW_WAYLAND_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPI_WINDOW_WAYLAND, GstVaapiWindowWaylandClass))
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typedef struct _GstVaapiWindowWaylandPrivate GstVaapiWindowWaylandPrivate;
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typedef struct _GstVaapiWindowWaylandClass GstVaapiWindowWaylandClass;
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typedef struct _FrameState FrameState;
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struct _FrameState
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{
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GstVaapiWindow *window;
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GstVaapiSurface *surface;
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GstVaapiVideoPool *surface_pool;
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struct wl_callback *callback;
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gboolean done;
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};
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static FrameState *
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frame_state_new (GstVaapiWindow * window)
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{
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FrameState *frame;
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frame = g_slice_new (FrameState);
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if (!frame)
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return NULL;
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frame->window = window;
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frame->surface = NULL;
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frame->surface_pool = NULL;
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frame->callback = NULL;
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frame->done = FALSE;
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return frame;
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}
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static void
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frame_state_free (FrameState * frame)
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{
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if (!frame)
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return;
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if (frame->surface) {
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if (frame->surface_pool)
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gst_vaapi_video_pool_put_object (frame->surface_pool, frame->surface);
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frame->surface = NULL;
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}
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gst_vaapi_video_pool_replace (&frame->surface_pool, NULL);
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g_clear_pointer (&frame->callback, wl_callback_destroy);
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g_slice_free (FrameState, frame);
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}
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struct _GstVaapiWindowWaylandPrivate
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{
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struct wl_shell_surface *wl_shell_surface;
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struct wl_surface *surface;
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struct wl_region *opaque_region;
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struct wl_event_queue *event_queue;
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FrameState *last_frame;
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GstPoll *poll;
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GstPollFD pollfd;
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guint is_shown:1;
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guint fullscreen_on_show:1;
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guint sync_failed:1;
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volatile guint num_frames_pending;
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gboolean need_vpp;
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};
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/**
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* GstVaapiWindowWayland:
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*
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* A Wayland window abstraction.
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*/
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struct _GstVaapiWindowWayland
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{
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/*< private > */
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GstVaapiWindow parent_instance;
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};
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/**
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* GstVaapiWindowWaylandClass:
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*
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* An Wayland #Window wrapper class.
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*/
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struct _GstVaapiWindowWaylandClass
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{
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/*< private > */
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GstVaapiWindowClass parent_class;
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};
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G_DEFINE_TYPE_WITH_PRIVATE (GstVaapiWindowWayland, gst_vaapi_window_wayland,
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GST_TYPE_VAAPI_WINDOW);
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static gboolean
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gst_vaapi_window_wayland_show (GstVaapiWindow * window)
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{
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GST_WARNING ("unimplemented GstVaapiWindowWayland::show()");
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return TRUE;
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}
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static gboolean
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gst_vaapi_window_wayland_hide (GstVaapiWindow * window)
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{
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GST_WARNING ("unimplemented GstVaapiWindowWayland::hide()");
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return TRUE;
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}
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static gboolean
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gst_vaapi_window_wayland_sync (GstVaapiWindow * window)
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{
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
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struct wl_display *const wl_display =
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GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
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if (priv->sync_failed)
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return FALSE;
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if (priv->pollfd.fd < 0) {
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priv->pollfd.fd = wl_display_get_fd (wl_display);
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gst_poll_add_fd (priv->poll, &priv->pollfd);
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gst_poll_fd_ctl_read (priv->poll, &priv->pollfd, TRUE);
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}
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while (g_atomic_int_get (&priv->num_frames_pending) > 0) {
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while (wl_display_prepare_read_queue (wl_display, priv->event_queue) < 0) {
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if (wl_display_dispatch_queue_pending (wl_display, priv->event_queue) < 0)
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goto error;
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}
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if (wl_display_flush (wl_display) < 0)
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goto error;
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if (g_atomic_int_get (&priv->num_frames_pending) == 0) {
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wl_display_cancel_read (wl_display);
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return TRUE;
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}
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again:
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if (gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE) < 0) {
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int saved_errno = errno;
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if (saved_errno == EAGAIN || saved_errno == EINTR)
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goto again;
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wl_display_cancel_read (wl_display);
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if (saved_errno == EBUSY) /* flushing */
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return FALSE;
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else
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goto error;
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}
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if (wl_display_read_events (wl_display) < 0)
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goto error;
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if (wl_display_dispatch_queue_pending (wl_display, priv->event_queue) < 0)
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goto error;
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}
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return TRUE;
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/* ERRORS */
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error:
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{
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priv->sync_failed = TRUE;
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GST_ERROR ("Error on dispatching events: %s", g_strerror (errno));
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return FALSE;
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}
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}
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static void
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handle_ping (void *data, struct wl_shell_surface *wl_shell_surface,
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uint32_t serial)
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{
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wl_shell_surface_pong (wl_shell_surface, serial);
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}
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static void
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handle_configure (void *data, struct wl_shell_surface *wl_shell_surface,
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uint32_t edges, int32_t width, int32_t height)
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{
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}
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static void
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handle_popup_done (void *data, struct wl_shell_surface *wl_shell_surface)
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{
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}
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static const struct wl_shell_surface_listener shell_surface_listener = {
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handle_ping,
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handle_configure,
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handle_popup_done
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};
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static gboolean
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gst_vaapi_window_wayland_set_fullscreen (GstVaapiWindow * window,
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gboolean fullscreen)
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{
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
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if (!priv->is_shown) {
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priv->fullscreen_on_show = fullscreen;
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return TRUE;
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}
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if (!fullscreen)
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wl_shell_surface_set_toplevel (priv->wl_shell_surface);
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else {
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wl_shell_surface_set_fullscreen (priv->wl_shell_surface,
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WL_SHELL_SURFACE_FULLSCREEN_METHOD_SCALE, 0, NULL);
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}
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return TRUE;
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}
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static gboolean
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gst_vaapi_window_wayland_create (GstVaapiWindow * window,
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guint * width, guint * height)
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{
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
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GstVaapiDisplayWaylandPrivate *const priv_display =
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GST_VAAPI_DISPLAY_WAYLAND_GET_PRIVATE (GST_VAAPI_WINDOW_DISPLAY (window));
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GST_DEBUG ("create window, size %ux%u", *width, *height);
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g_return_val_if_fail (priv_display->compositor != NULL, FALSE);
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g_return_val_if_fail (priv_display->wl_shell != NULL, FALSE);
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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priv->event_queue = wl_display_create_queue (priv_display->wl_display);
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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if (!priv->event_queue)
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return FALSE;
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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priv->surface = wl_compositor_create_surface (priv_display->compositor);
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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if (!priv->surface)
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return FALSE;
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wl_proxy_set_queue ((struct wl_proxy *) priv->surface, priv->event_queue);
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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priv->wl_shell_surface = wl_shell_get_shell_surface (priv_display->wl_shell,
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priv->surface);
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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if (!priv->wl_shell_surface)
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return FALSE;
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wl_proxy_set_queue ((struct wl_proxy *) priv->wl_shell_surface,
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priv->event_queue);
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wl_shell_surface_add_listener (priv->wl_shell_surface,
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&shell_surface_listener, priv);
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wl_shell_surface_set_toplevel (priv->wl_shell_surface);
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priv->poll = gst_poll_new (TRUE);
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gst_poll_fd_init (&priv->pollfd);
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if (priv->fullscreen_on_show)
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gst_vaapi_window_wayland_set_fullscreen (window, TRUE);
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priv->is_shown = TRUE;
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return TRUE;
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}
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static void
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gst_vaapi_window_wayland_finalize (GObject * object)
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{
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GstVaapiWindow *window = GST_VAAPI_WINDOW (object);
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
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struct wl_display *const wl_display =
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GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
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/* Make sure that the last wl buffer's callback could be called */
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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if (priv->surface) {
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wl_surface_attach (priv->surface, NULL, 0, 0);
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wl_surface_commit (priv->surface);
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wl_display_flush (wl_display);
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}
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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gst_poll_set_flushing (priv->poll, TRUE);
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if (priv->event_queue)
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wl_display_roundtrip_queue (wl_display, priv->event_queue);
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g_clear_pointer (&priv->wl_shell_surface, wl_shell_surface_destroy);
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g_clear_pointer (&priv->surface, wl_surface_destroy);
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g_clear_pointer (&priv->event_queue, wl_event_queue_destroy);
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gst_poll_free (priv->poll);
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G_OBJECT_CLASS (gst_vaapi_window_wayland_parent_class)->finalize (object);
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}
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static gboolean
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gst_vaapi_window_wayland_resize (GstVaapiWindow * window,
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guint width, guint height)
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{
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
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GstVaapiDisplayWaylandPrivate *const priv_display =
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GST_VAAPI_DISPLAY_WAYLAND_GET_PRIVATE (GST_VAAPI_WINDOW_DISPLAY (window));
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GST_DEBUG ("resize window, new size %ux%u", width, height);
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if (priv->opaque_region)
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wl_region_destroy (priv->opaque_region);
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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priv->opaque_region = wl_compositor_create_region (priv_display->compositor);
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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wl_region_add (priv->opaque_region, 0, 0, width, height);
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return TRUE;
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}
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static inline gboolean
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frame_done (FrameState * frame)
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{
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (frame->window);
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g_atomic_int_set (&frame->done, TRUE);
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if (g_atomic_pointer_compare_and_exchange (&priv->last_frame, frame, NULL))
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return g_atomic_int_dec_and_test (&priv->num_frames_pending);
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return FALSE;
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}
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static void
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frame_done_callback (void *data, struct wl_callback *callback, uint32_t time)
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{
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if (!frame_done (data))
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GST_INFO ("cannot remove last frame because it didn't match or empty");
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}
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static const struct wl_callback_listener frame_callback_listener = {
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frame_done_callback
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};
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static void
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frame_release_callback (void *data, struct wl_buffer *wl_buffer)
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{
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FrameState *const frame = data;
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if (!frame->done)
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if (!frame_done (frame))
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GST_INFO ("cannot remove last frame because it didn't match or empty");
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wl_buffer_destroy (wl_buffer);
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frame_state_free (frame);
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}
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static const struct wl_buffer_listener frame_buffer_listener = {
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frame_release_callback
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};
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static gboolean
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gst_vaapi_window_wayland_render (GstVaapiWindow * window,
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GstVaapiSurface * surface,
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const GstVaapiRectangle * src_rect,
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const GstVaapiRectangle * dst_rect, guint flags)
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{
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GstVaapiWindowWaylandPrivate *const priv =
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GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
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GstVaapiDisplay *const display = GST_VAAPI_WINDOW_DISPLAY (window);
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struct wl_display *const wl_display =
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GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
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struct wl_buffer *buffer;
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FrameState *frame;
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guint width, height, va_flags;
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VAStatus status;
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/* Check that we don't need to crop source VA surface */
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gst_vaapi_surface_get_size (surface, &width, &height);
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if (src_rect->x != 0 || src_rect->y != 0)
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priv->need_vpp = TRUE;
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if (src_rect->width != width || src_rect->height != height)
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priv->need_vpp = TRUE;
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/* Check that we don't render to a subregion of this window */
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if (dst_rect->x != 0 || dst_rect->y != 0)
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priv->need_vpp = TRUE;
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if (dst_rect->width != window->width || dst_rect->height != window->height)
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priv->need_vpp = TRUE;
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/* Try to construct a Wayland buffer from VA surface as is (without VPP) */
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if (!priv->need_vpp) {
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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va_flags = from_GstVaapiSurfaceRenderFlags (flags);
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status = vaGetSurfaceBufferWl (GST_VAAPI_DISPLAY_VADISPLAY (display),
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GST_VAAPI_OBJECT_ID (surface),
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va_flags & (VA_TOP_FIELD | VA_BOTTOM_FIELD), &buffer);
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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if (status == VA_STATUS_ERROR_FLAG_NOT_SUPPORTED ||
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status == VA_STATUS_ERROR_UNIMPLEMENTED ||
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status == VA_STATUS_ERROR_INVALID_IMAGE_FORMAT)
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priv->need_vpp = TRUE;
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else if (!vaapi_check_status (status, "vaGetSurfaceBufferWl()"))
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return FALSE;
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}
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/* Try to construct a Wayland buffer with VPP */
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if (priv->need_vpp) {
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if (window->has_vpp) {
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GstVaapiSurface *const vpp_surface =
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gst_vaapi_window_vpp_convert_internal (window, surface, src_rect,
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dst_rect, flags);
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if (G_UNLIKELY (!vpp_surface))
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priv->need_vpp = FALSE;
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else {
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surface = vpp_surface;
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width = window->width;
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height = window->height;
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}
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}
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
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status = vaGetSurfaceBufferWl (GST_VAAPI_DISPLAY_VADISPLAY (display),
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GST_VAAPI_OBJECT_ID (surface), VA_FRAME_PICTURE, &buffer);
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GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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if (!vaapi_check_status (status, "vaGetSurfaceBufferWl()"))
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return FALSE;
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}
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/* Wait for the previous frame to complete redraw */
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if (!gst_vaapi_window_wayland_sync (window)) {
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/* Release vpp surface if exists */
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if (priv->need_vpp && window->has_vpp)
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gst_vaapi_video_pool_put_object (window->surface_pool, surface);
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wl_buffer_destroy (buffer);
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return !priv->sync_failed;
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}
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frame = frame_state_new (window);
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if (!frame)
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return FALSE;
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g_atomic_pointer_set (&priv->last_frame, frame);
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g_atomic_int_inc (&priv->num_frames_pending);
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|
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if (priv->need_vpp && window->has_vpp) {
|
|
frame->surface = surface;
|
|
frame->surface_pool = gst_vaapi_video_pool_ref (window->surface_pool);
|
|
}
|
|
|
|
/* XXX: attach to the specified target rectangle */
|
|
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
|
|
wl_surface_attach (priv->surface, buffer, 0, 0);
|
|
wl_surface_damage (priv->surface, 0, 0, width, height);
|
|
|
|
if (priv->opaque_region) {
|
|
wl_surface_set_opaque_region (priv->surface, priv->opaque_region);
|
|
wl_region_destroy (priv->opaque_region);
|
|
priv->opaque_region = NULL;
|
|
}
|
|
|
|
wl_proxy_set_queue ((struct wl_proxy *) buffer, priv->event_queue);
|
|
wl_buffer_add_listener (buffer, &frame_buffer_listener, frame);
|
|
|
|
frame->callback = wl_surface_frame (priv->surface);
|
|
wl_callback_add_listener (frame->callback, &frame_callback_listener, frame);
|
|
|
|
wl_surface_commit (priv->surface);
|
|
wl_display_flush (wl_display);
|
|
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_vaapi_window_wayland_unblock (GstVaapiWindow * window)
|
|
{
|
|
GstVaapiWindowWaylandPrivate *const priv =
|
|
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
|
|
|
|
gst_poll_set_flushing (priv->poll, TRUE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_vaapi_window_wayland_unblock_cancel (GstVaapiWindow * window)
|
|
{
|
|
GstVaapiWindowWaylandPrivate *const priv =
|
|
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
|
|
|
|
gst_poll_set_flushing (priv->poll, FALSE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_vaapi_window_wayland_class_init (GstVaapiWindowWaylandClass * klass)
|
|
{
|
|
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
|
|
GstVaapiWindowClass *const window_class = GST_VAAPI_WINDOW_CLASS (klass);
|
|
|
|
object_class->finalize = gst_vaapi_window_wayland_finalize;
|
|
|
|
window_class->create = gst_vaapi_window_wayland_create;
|
|
window_class->show = gst_vaapi_window_wayland_show;
|
|
window_class->hide = gst_vaapi_window_wayland_hide;
|
|
window_class->render = gst_vaapi_window_wayland_render;
|
|
window_class->resize = gst_vaapi_window_wayland_resize;
|
|
window_class->set_fullscreen = gst_vaapi_window_wayland_set_fullscreen;
|
|
window_class->unblock = gst_vaapi_window_wayland_unblock;
|
|
window_class->unblock_cancel = gst_vaapi_window_wayland_unblock_cancel;
|
|
}
|
|
|
|
static void
|
|
gst_vaapi_window_wayland_init (GstVaapiWindowWayland * window)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_window_wayland_new:
|
|
* @display: a #GstVaapiDisplay
|
|
* @width: the requested window width, in pixels
|
|
* @height: the requested windo height, in pixels
|
|
*
|
|
* Creates a window with the specified @width and @height. The window
|
|
* will be attached to the @display and remains invisible to the user
|
|
* until gst_vaapi_window_show() is called.
|
|
*
|
|
* Return value: the newly allocated #GstVaapiWindow object
|
|
*/
|
|
GstVaapiWindow *
|
|
gst_vaapi_window_wayland_new (GstVaapiDisplay * display,
|
|
guint width, guint height)
|
|
{
|
|
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_WAYLAND (display), NULL);
|
|
|
|
return gst_vaapi_window_new_internal (GST_TYPE_VAAPI_WINDOW_WAYLAND, display,
|
|
GST_VAAPI_ID_INVALID, width, height);
|
|
}
|