gstreamer/subprojects/gstreamer-vaapi/gst-libs/gst/vaapi/gstvaapiwindow_x11.c

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/*
* gstvaapiwindow_x11.c - VA/X11 window abstraction
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
2014-01-22 17:54:14 +00:00
* Copyright (C) 2012-2014 Intel Corporation
* 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
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* 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
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapiwindow_x11
* @short_description: VA/X11 window abstraction
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*/
#include "sysdeps.h"
#include <X11/Xatom.h>
#include "gstvaapicompat.h"
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#include "gstvaapiwindow_x11.h"
#include "gstvaapiwindow_x11_priv.h"
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#include "gstvaapidisplay_x11.h"
#include "gstvaapidisplay_x11_priv.h"
#include "gstvaapisurface_priv.h"
#include "gstvaapiutils.h"
#include "gstvaapiutils_x11.h"
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GST_DEBUG_CATEGORY_EXTERN (gst_debug_vaapi_window);
#define GST_CAT_DEFAULT gst_debug_vaapi_window
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#define GST_VAAPI_WINDOW_X11_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPI_WINDOW_X11, GstVaapiWindowX11Class))
G_DEFINE_TYPE_WITH_PRIVATE (GstVaapiWindowX11, gst_vaapi_window_x11,
GST_TYPE_VAAPI_WINDOW);
#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
#define _NET_WM_STATE_ADD 1 /* add/set property */
#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
static void
send_wmspec_change_state (GstVaapiWindow * window, Atom state, gboolean add)
{
GstVaapiWindowX11Private *const priv =
GST_VAAPI_WINDOW_X11_GET_PRIVATE (window);
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
XClientMessageEvent xclient;
memset (&xclient, 0, sizeof (xclient));
xclient.type = ClientMessage;
xclient.window = GST_VAAPI_WINDOW_ID (window);
xclient.message_type = priv->atom_NET_WM_STATE;
xclient.format = 32;
xclient.data.l[0] = add ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
xclient.data.l[1] = state;
xclient.data.l[2] = 0;
xclient.data.l[3] = 0;
xclient.data.l[4] = 0;
XSendEvent (dpy,
DefaultRootWindow (dpy),
False,
SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *) & xclient);
}
static void
wait_event (GstVaapiWindow * window, int type)
{
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
XEvent e;
Bool got_event;
for (;;) {
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
got_event = XCheckTypedWindowEvent (dpy, xid, type, &e);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
if (got_event)
break;
g_usleep (10);
}
}
static gboolean
timed_wait_event (GstVaapiWindow * window, int type, guint64 end_time,
XEvent * e)
{
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
XEvent tmp_event;
guint64 now_time;
Bool got_event;
if (!e)
e = &tmp_event;
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
got_event = XCheckTypedWindowEvent (dpy, xid, type, e);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
if (got_event)
return TRUE;
do {
g_usleep (10);
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
got_event = XCheckTypedWindowEvent (dpy, xid, type, e);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
if (got_event)
return TRUE;
now_time = g_get_real_time ();
} while (now_time < end_time);
return FALSE;
}
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static gboolean
gst_vaapi_window_x11_show (GstVaapiWindow * window)
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{
GstVaapiWindowX11Private *const priv =
GST_VAAPI_WINDOW_X11_GET_PRIVATE (window);
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
XWindowAttributes wattr;
gboolean has_errors;
if (priv->is_mapped)
return TRUE;
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
x11_trap_errors ();
if (window->use_foreign_window) {
XGetWindowAttributes (dpy, xid, &wattr);
if (!(wattr.your_event_mask & StructureNotifyMask))
XSelectInput (dpy, xid, StructureNotifyMask);
}
XMapWindow (dpy, xid);
has_errors = x11_untrap_errors () != 0;
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
if (!has_errors) {
wait_event (window, MapNotify);
if (window->use_foreign_window &&
!(wattr.your_event_mask & StructureNotifyMask)) {
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
x11_trap_errors ();
XSelectInput (dpy, xid, wattr.your_event_mask);
has_errors = x11_untrap_errors () != 0;
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
}
priv->is_mapped = TRUE;
if (priv->fullscreen_on_map)
gst_vaapi_window_set_fullscreen (window, TRUE);
}
return !has_errors;
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}
static gboolean
gst_vaapi_window_x11_hide (GstVaapiWindow * window)
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{
GstVaapiWindowX11Private *const priv =
GST_VAAPI_WINDOW_X11_GET_PRIVATE (window);
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
XWindowAttributes wattr;
gboolean has_errors;
if (!priv->is_mapped)
return TRUE;
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
x11_trap_errors ();
if (window->use_foreign_window) {
XGetWindowAttributes (dpy, xid, &wattr);
if (!(wattr.your_event_mask & StructureNotifyMask))
XSelectInput (dpy, xid, StructureNotifyMask);
}
XUnmapWindow (dpy, xid);
has_errors = x11_untrap_errors () != 0;
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
if (!has_errors) {
wait_event (window, UnmapNotify);
if (window->use_foreign_window &&
!(wattr.your_event_mask & StructureNotifyMask)) {
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
x11_trap_errors ();
XSelectInput (dpy, xid, wattr.your_event_mask);
has_errors = x11_untrap_errors () != 0;
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
}
priv->is_mapped = FALSE;
}
return !has_errors;
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}
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static gboolean
gst_vaapi_window_x11_create (GstVaapiWindow * window, guint * width,
guint * height)
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{
GstVaapiWindowX11Private *const priv =
GST_VAAPI_WINDOW_X11_GET_PRIVATE (window);
GstVaapiDisplay *const display = GST_VAAPI_WINDOW_DISPLAY (window);
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
Window xid = GST_VAAPI_WINDOW_ID (window);
guint vid = 0;
Colormap cmap = None;
const GstVaapiDisplayClass *display_class;
const GstVaapiWindowClass *window_class;
XWindowAttributes wattr;
Atom wm_delete, atoms[2];
gboolean ok;
static const char *atom_names[2] = {
"_NET_WM_STATE",
"_NET_WM_STATE_FULLSCREEN",
};
if (window->use_foreign_window && xid) {
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
XGetWindowAttributes (dpy, xid, &wattr);
priv->is_mapped = wattr.map_state == IsViewable;
ok = x11_get_geometry (dpy, xid, NULL, NULL, width, height, NULL);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
return ok;
}
display_class = GST_VAAPI_DISPLAY_GET_CLASS (display);
if (display_class) {
if (display_class->get_visual_id)
vid = display_class->get_visual_id (display, window);
if (display_class->get_colormap)
cmap = display_class->get_colormap (display, window);
}
window_class = GST_VAAPI_WINDOW_GET_CLASS (window);
if (window_class) {
if (window_class->get_visual_id && !vid)
vid = window_class->get_visual_id (window);
if (window_class->get_colormap && !cmap)
cmap = window_class->get_colormap (window);
}
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
XInternAtoms (dpy,
(char **) atom_names, G_N_ELEMENTS (atom_names), False, atoms);
priv->atom_NET_WM_STATE = atoms[0];
priv->atom_NET_WM_STATE_FULLSCREEN = atoms[1];
xid = x11_create_window (dpy, *width, *height, vid, cmap);
if (xid) {
/* Tell the window manager we'd like delete client messages instead of
* being killed */
wm_delete = XInternAtom (dpy, "WM_DELETE_WINDOW", True);
if (wm_delete != None) {
(void) XSetWMProtocols (dpy, xid, &wm_delete, 1);
}
XRaiseWindow (dpy, xid);
}
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
GST_DEBUG ("xid %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (xid));
GST_VAAPI_WINDOW_ID (window) = xid;
return xid != None;
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}
static void
gst_vaapi_window_x11_finalize (GObject * object)
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{
GstVaapiWindow *window = GST_VAAPI_WINDOW (object);
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
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if (xid) {
if (!window->use_foreign_window) {
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
XDestroyWindow (dpy, xid);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
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}
GST_VAAPI_WINDOW_ID (window) = None;
}
G_OBJECT_CLASS (gst_vaapi_window_x11_parent_class)->finalize (object);
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}
static gboolean
gst_vaapi_window_x11_get_geometry (GstVaapiWindow * window,
gint * px, gint * py, guint * pwidth, guint * pheight)
{
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
gboolean success;
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
success = x11_get_geometry (dpy, xid, px, py, pwidth, pheight, NULL);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
return success;
}
static gboolean
gst_vaapi_window_x11_set_fullscreen (GstVaapiWindow * window,
gboolean fullscreen)
{
GstVaapiWindowX11Private *const priv =
GST_VAAPI_WINDOW_X11_GET_PRIVATE (window);
Display *const dpy = GST_VAAPI_WINDOW_NATIVE_DISPLAY (window);
const Window xid = GST_VAAPI_WINDOW_ID (window);
XEvent e;
guint width, height;
gboolean has_errors;
guint64 end_time;
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
x11_trap_errors ();
if (fullscreen) {
if (!priv->is_mapped) {
priv->fullscreen_on_map = TRUE;
XChangeProperty (dpy,
xid,
priv->atom_NET_WM_STATE, XA_ATOM, 32,
PropModeReplace,
(unsigned char *) &priv->atom_NET_WM_STATE_FULLSCREEN, 1);
} else {
send_wmspec_change_state (window,
priv->atom_NET_WM_STATE_FULLSCREEN, TRUE);
}
} else {
if (!priv->is_mapped) {
priv->fullscreen_on_map = FALSE;
XDeleteProperty (dpy, xid, priv->atom_NET_WM_STATE);
} else {
send_wmspec_change_state (window,
priv->atom_NET_WM_STATE_FULLSCREEN, FALSE);
}
}
XSync (dpy, False);
has_errors = x11_untrap_errors () != 0;
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
if (has_errors)
return FALSE;
/* Try to wait for the completion of the fullscreen mode switch */
if (!window->use_foreign_window && priv->is_mapped) {
const guint DELAY = 100000; /* 100 ms */
end_time = DELAY + g_get_real_time ();
while (timed_wait_event (window, ConfigureNotify, end_time, &e)) {
if (fullscreen) {
gst_vaapi_display_get_size (GST_VAAPI_WINDOW_DISPLAY (window),
&width, &height);
if (e.xconfigure.width == width && e.xconfigure.height == height)
return TRUE;
} else {
gst_vaapi_window_get_size (window, &width, &height);
if (e.xconfigure.width != width || e.xconfigure.height != height)
return TRUE;
}
}
}
return FALSE;
}
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static gboolean
gst_vaapi_window_x11_resize (GstVaapiWindow * window, guint width, guint height)
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{
gboolean has_errors;
if (!GST_VAAPI_WINDOW_ID (window))
return FALSE;
GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
x11_trap_errors ();
XResizeWindow (GST_VAAPI_WINDOW_NATIVE_DISPLAY (window),
GST_VAAPI_WINDOW_ID (window), width, height);
has_errors = x11_untrap_errors () != 0;
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
return !has_errors;
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}
static VAStatus
gst_vaapi_window_x11_put_surface (GstVaapiWindow * window,
VASurfaceID surface_id,
const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect, guint flags)
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{
VAStatus status;
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GST_VAAPI_WINDOW_LOCK_DISPLAY (window);
status = vaPutSurface (GST_VAAPI_WINDOW_VADISPLAY (window),
surface_id,
GST_VAAPI_WINDOW_ID (window),
src_rect->x,
src_rect->y,
src_rect->width,
src_rect->height,
dst_rect->x,
dst_rect->y,
dst_rect->width,
dst_rect->height, NULL, 0, from_GstVaapiSurfaceRenderFlags (flags)
);
GST_VAAPI_WINDOW_UNLOCK_DISPLAY (window);
return status;
}
static gboolean
gst_vaapi_window_x11_render (GstVaapiWindow * window,
GstVaapiSurface * surface,
const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect, guint flags)
{
VASurfaceID surface_id;
VAStatus status;
GstVaapiWindowX11Private *const priv =
GST_VAAPI_WINDOW_X11_GET_PRIVATE (window);
gboolean ret = FALSE;
surface_id = GST_VAAPI_SURFACE_ID (surface);
if (surface_id == VA_INVALID_ID)
return FALSE;
if (window->has_vpp && priv->need_vpp)
goto conversion;
status =
gst_vaapi_window_x11_put_surface (window, surface_id, src_rect, dst_rect,
flags);
if (status == VA_STATUS_ERROR_FLAG_NOT_SUPPORTED ||
status == VA_STATUS_ERROR_UNIMPLEMENTED ||
status == VA_STATUS_ERROR_INVALID_IMAGE_FORMAT) {
priv->need_vpp = TRUE;
} else {
ret = vaapi_check_status (status, "vaPutSurface()");
}
conversion:
if (priv->need_vpp && window->has_vpp) {
GstVaapiSurface *const vpp_surface =
gst_vaapi_window_vpp_convert_internal (window, surface, NULL, NULL,
flags);
if (G_LIKELY (vpp_surface)) {
GstVaapiRectangle vpp_src_rect;
surface_id = GST_VAAPI_SURFACE_ID (vpp_surface);
vpp_src_rect.x = vpp_src_rect.y = 0;
vpp_src_rect.width = GST_VAAPI_SURFACE_WIDTH (vpp_surface);
vpp_src_rect.height = GST_VAAPI_SURFACE_HEIGHT (vpp_surface);
status =
gst_vaapi_window_x11_put_surface (window, surface_id, &vpp_src_rect,
dst_rect, flags);
ret = vaapi_check_status (status, "vaPutSurface()");
if (!gst_vaapi_surface_sync (vpp_surface)) {
GST_WARNING ("failed to render surface");
ret = FALSE;
}
gst_vaapi_video_pool_put_object (window->surface_pool, vpp_surface);
} else {
priv->need_vpp = FALSE;
}
}
return ret;
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}
static void
gst_vaapi_window_x11_class_init (GstVaapiWindowX11Class * klass)
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{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstVaapiWindowClass *const window_class = GST_VAAPI_WINDOW_CLASS (klass);
object_class->finalize = gst_vaapi_window_x11_finalize;
window_class->create = gst_vaapi_window_x11_create;
window_class->show = gst_vaapi_window_x11_show;
window_class->hide = gst_vaapi_window_x11_hide;
window_class->get_geometry = gst_vaapi_window_x11_get_geometry;
window_class->set_fullscreen = gst_vaapi_window_x11_set_fullscreen;
window_class->resize = gst_vaapi_window_x11_resize;
window_class->render = gst_vaapi_window_x11_render;
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}
static void
gst_vaapi_window_x11_init (GstVaapiWindowX11 * window)
{
}
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/**
* gst_vaapi_window_x11_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
*/
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GstVaapiWindow *
gst_vaapi_window_x11_new (GstVaapiDisplay * display, guint width, guint height)
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{
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display), NULL);
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return gst_vaapi_window_new_internal (GST_TYPE_VAAPI_WINDOW_X11, display,
GST_VAAPI_ID_INVALID, width, height);
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}
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/**
* gst_vaapi_window_x11_new_with_xid:
* @display: a #GstVaapiDisplay
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* @xid: an X11 Window id
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*
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* Creates a #GstVaapiWindow using the X11 Window @xid. The caller
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* still owns the window and must call XDestroyWindow() when all
* #GstVaapiWindow references are released. Doing so too early can
* yield undefined behaviour.
*
* Return value: the newly allocated #GstVaapiWindow object
*/
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GstVaapiWindow *
gst_vaapi_window_x11_new_with_xid (GstVaapiDisplay * display, Window xid)
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{
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display), NULL);
g_return_val_if_fail (xid != None, NULL);
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return gst_vaapi_window_new_internal (GST_TYPE_VAAPI_WINDOW_X11, display,
xid, 0, 0);
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}
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/**
* gst_vaapi_window_x11_get_xid:
* @window: a #GstVaapiWindowX11
*
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* Returns the underlying X11 Window that was created by
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* gst_vaapi_window_x11_new() or that was bound with
* gst_vaapi_window_x11_new_with_xid().
*
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* Return value: the underlying X11 Window bound to @window.
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*/
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Window
gst_vaapi_window_x11_get_xid (GstVaapiWindowX11 * window)
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{
g_return_val_if_fail (GST_VAAPI_IS_WINDOW_X11 (window), None);
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return GST_VAAPI_WINDOW_ID (window);
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}
/**
* gst_vaapi_window_x11_is_foreign_xid:
* @window: a #GstVaapiWindowX11
*
* Checks whether the @window XID was created by gst_vaapi_window_x11_new() or bound with gst_vaapi_window_x11_new_with_xid().
*
* Return value: %TRUE if the underlying X window is owned by the
* caller (foreign window)
*/
gboolean
gst_vaapi_window_x11_is_foreign_xid (GstVaapiWindowX11 * window)
{
g_return_val_if_fail (GST_VAAPI_IS_WINDOW_X11 (window), FALSE);
return GST_VAAPI_WINDOW (window)->use_foreign_window;
}