mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-13 11:56:35 +00:00
e73e69a480
This gets rid of the strange `do_init` macro and makes the intent a bit more clear.
556 lines
15 KiB
C
556 lines
15 KiB
C
/*
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* gstvaapidisplay_x11.c - VA/X11 display abstraction
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
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* Copyright (C) 2011-2013 Intel Corporation
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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:gstvaapidisplay_x11
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* @short_description: VA/X11 display abstraction
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*/
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#include "sysdeps.h"
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#include "gstvaapiutils.h"
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#include "gstvaapidisplay_priv.h"
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#include "gstvaapidisplay_x11.h"
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#include "gstvaapidisplay_x11_priv.h"
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#include "gstvaapiwindow_x11.h"
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#if HAVE_XRANDR
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# include <X11/extensions/Xrandr.h>
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#endif
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#if HAVE_XRENDER
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# include <X11/extensions/Xrender.h>
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#endif
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#define DEBUG_VAAPI_DISPLAY 1
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#include "gstvaapidebug.h"
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G_DEFINE_TYPE_WITH_PRIVATE (GstVaapiDisplayX11, gst_vaapi_display_x11,
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GST_TYPE_VAAPI_DISPLAY);
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static inline const gchar *
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get_default_display_name (void)
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{
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static const gchar *g_display_name;
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if (!g_display_name)
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g_display_name = getenv ("DISPLAY");
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return g_display_name;
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}
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/* Reconstruct a display name without our prefix */
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static const gchar *
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get_display_name (GstVaapiDisplayX11 * display)
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{
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GstVaapiDisplayX11Private *const priv = display->priv;
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const gchar *display_name = priv->display_name;
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if (!display_name || *display_name == '\0')
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return NULL;
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return display_name;
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}
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/* Mangle display name with our prefix */
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static gboolean
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set_display_name (GstVaapiDisplayX11 * display, const gchar * display_name)
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{
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GstVaapiDisplayX11Private *const priv = display->priv;
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g_free (priv->display_name);
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if (!display_name) {
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display_name = get_default_display_name ();
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if (!display_name)
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display_name = "";
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}
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priv->display_name = g_strdup (display_name);
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return priv->display_name != NULL;
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}
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/* Set synchronous behavious on the underlying X11 display */
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static void
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set_synchronous (GstVaapiDisplayX11 * display, gboolean synchronous)
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{
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GstVaapiDisplayX11Private *const priv = display->priv;
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if (priv->synchronous != synchronous) {
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priv->synchronous = synchronous;
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if (priv->x11_display) {
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GST_VAAPI_DISPLAY_LOCK (display);
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XSynchronize (priv->x11_display, synchronous);
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GST_VAAPI_DISPLAY_UNLOCK (display);
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}
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}
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}
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/* Check for display server extensions */
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static void
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check_extensions (GstVaapiDisplayX11 * display)
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{
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GstVaapiDisplayX11Private *const priv = display->priv;
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int evt_base, err_base;
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#if HAVE_XRANDR
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priv->use_xrandr = XRRQueryExtension (priv->x11_display,
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&evt_base, &err_base);
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#endif
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#if HAVE_XRENDER
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priv->has_xrender = XRenderQueryExtension (priv->x11_display,
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&evt_base, &err_base);
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#endif
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}
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static gboolean
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gst_vaapi_display_x11_bind_display (GstVaapiDisplay * base_display,
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gpointer native_display)
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{
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GstVaapiDisplayX11 *const display = GST_VAAPI_DISPLAY_X11_CAST (base_display);
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GstVaapiDisplayX11Private *const priv = display->priv;
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priv->x11_display = native_display;
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priv->x11_screen = DefaultScreen (native_display);
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priv->use_foreign_display = TRUE;
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check_extensions (display);
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if (!set_display_name (display, XDisplayString (priv->x11_display)))
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return FALSE;
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return TRUE;
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}
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static gboolean
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gst_vaapi_display_x11_open_display (GstVaapiDisplay * base_display,
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const gchar * name)
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{
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GstVaapiDisplayX11 *const display = GST_VAAPI_DISPLAY_X11_CAST (base_display);
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GstVaapiDisplayX11Private *const priv = display->priv;
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if (!set_display_name (display, name))
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return FALSE;
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priv->x11_display = XOpenDisplay (get_display_name (display));
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if (!priv->x11_display)
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return FALSE;
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priv->use_foreign_display = FALSE;
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priv->x11_screen = DefaultScreen (priv->x11_display);
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check_extensions (display);
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return TRUE;
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}
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static void
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gst_vaapi_display_x11_close_display (GstVaapiDisplay * display)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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if (priv->pixmap_formats) {
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g_array_free (priv->pixmap_formats, TRUE);
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priv->pixmap_formats = NULL;
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}
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if (priv->x11_display) {
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if (!priv->use_foreign_display)
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XCloseDisplay (priv->x11_display);
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priv->x11_display = NULL;
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}
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g_clear_pointer (&priv->display_name, g_free);
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}
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static void
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gst_vaapi_display_x11_sync (GstVaapiDisplay * display)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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if (priv->x11_display) {
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GST_VAAPI_DISPLAY_LOCK (display);
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XSync (priv->x11_display, False);
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GST_VAAPI_DISPLAY_UNLOCK (display);
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}
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}
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static void
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gst_vaapi_display_x11_flush (GstVaapiDisplay * display)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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if (priv->x11_display) {
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GST_VAAPI_DISPLAY_LOCK (display);
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XFlush (priv->x11_display);
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GST_VAAPI_DISPLAY_UNLOCK (display);
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}
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}
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static gboolean
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gst_vaapi_display_x11_get_display_info (GstVaapiDisplay * display,
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GstVaapiDisplayInfo * info)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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info->native_display = priv->x11_display;
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info->display_name = priv->display_name;
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if (!info->va_display) {
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info->va_display = vaGetDisplay (priv->x11_display);
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if (!info->va_display)
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return FALSE;
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}
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return TRUE;
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}
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static void
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gst_vaapi_display_x11_get_size (GstVaapiDisplay * display,
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guint * pwidth, guint * pheight)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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if (!priv->x11_display)
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return;
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if (pwidth)
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*pwidth = DisplayWidth (priv->x11_display, priv->x11_screen);
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if (pheight)
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*pheight = DisplayHeight (priv->x11_display, priv->x11_screen);
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}
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static void
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gst_vaapi_display_x11_get_size_mm (GstVaapiDisplay * display,
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guint * pwidth, guint * pheight)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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guint width_mm, height_mm;
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if (!priv->x11_display)
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return;
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width_mm = DisplayWidthMM (priv->x11_display, priv->x11_screen);
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height_mm = DisplayHeightMM (priv->x11_display, priv->x11_screen);
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#if HAVE_XRANDR
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/* XXX: fix up physical size if the display is rotated */
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if (priv->use_xrandr) {
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XRRScreenConfiguration *xrr_config = NULL;
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XRRScreenSize *xrr_sizes;
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Window win;
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int num_xrr_sizes, size_id, screen;
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Rotation rotation;
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do {
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win = DefaultRootWindow (priv->x11_display);
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screen = XRRRootToScreen (priv->x11_display, win);
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xrr_config = XRRGetScreenInfo (priv->x11_display, win);
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if (!xrr_config)
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break;
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size_id = XRRConfigCurrentConfiguration (xrr_config, &rotation);
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if (rotation == RR_Rotate_0 || rotation == RR_Rotate_180)
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break;
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xrr_sizes = XRRSizes (priv->x11_display, screen, &num_xrr_sizes);
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if (!xrr_sizes || size_id >= num_xrr_sizes)
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break;
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width_mm = xrr_sizes[size_id].mheight;
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height_mm = xrr_sizes[size_id].mwidth;
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} while (0);
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if (xrr_config)
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XRRFreeScreenConfigInfo (xrr_config);
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}
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#endif
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if (pwidth)
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*pwidth = width_mm;
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if (pheight)
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*pheight = height_mm;
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}
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static GstVaapiWindow *
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gst_vaapi_display_x11_create_window (GstVaapiDisplay * display, GstVaapiID id,
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guint width, guint height)
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{
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return id != GST_VAAPI_ID_INVALID ?
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gst_vaapi_window_x11_new_with_xid (display, id) :
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gst_vaapi_window_x11_new (display, width, height);
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}
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void
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gst_vaapi_display_x11_class_init (GstVaapiDisplayX11Class * klass)
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{
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GstVaapiDisplayClass *const dpy_class = GST_VAAPI_DISPLAY_CLASS (klass);
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dpy_class->display_type = GST_VAAPI_DISPLAY_TYPE_X11;
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dpy_class->bind_display = gst_vaapi_display_x11_bind_display;
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dpy_class->open_display = gst_vaapi_display_x11_open_display;
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dpy_class->close_display = gst_vaapi_display_x11_close_display;
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dpy_class->sync = gst_vaapi_display_x11_sync;
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dpy_class->flush = gst_vaapi_display_x11_flush;
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dpy_class->get_display = gst_vaapi_display_x11_get_display_info;
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dpy_class->get_size = gst_vaapi_display_x11_get_size;
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dpy_class->get_size_mm = gst_vaapi_display_x11_get_size_mm;
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dpy_class->create_window = gst_vaapi_display_x11_create_window;
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}
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static void
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gst_vaapi_display_x11_init (GstVaapiDisplayX11 * display)
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{
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GstVaapiDisplayX11Private *const priv =
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gst_vaapi_display_x11_get_instance_private (display);
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display->priv = priv;
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}
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/**
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* gst_vaapi_display_x11_new:
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* @display_name: the X11 display name
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*
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* Opens an X11 #Display using @display_name and returns a newly
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* allocated #GstVaapiDisplay object. The X11 display will be cloed
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* when the reference count of the object reaches zero.
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*
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* Return value: a newly allocated #GstVaapiDisplay object
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*/
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GstVaapiDisplay *
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gst_vaapi_display_x11_new (const gchar * display_name)
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{
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GstVaapiDisplay *display;
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display = g_object_new (GST_TYPE_VAAPI_DISPLAY_X11, NULL);
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return gst_vaapi_display_config (display,
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GST_VAAPI_DISPLAY_INIT_FROM_DISPLAY_NAME, (gpointer) display_name);
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}
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/**
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* gst_vaapi_display_x11_new_with_display:
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* @x11_display: an X11 #Display
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*
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* Creates a #GstVaapiDisplay based on the X11 @x11_display
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* display. The caller still owns the display and must call
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* XCloseDisplay() when all #GstVaapiDisplay references are
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* released. Doing so too early can yield undefined behaviour.
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*
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* Return value: a newly allocated #GstVaapiDisplay object
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*/
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GstVaapiDisplay *
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gst_vaapi_display_x11_new_with_display (Display * x11_display)
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{
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GstVaapiDisplay *display;
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g_return_val_if_fail (x11_display, NULL);
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display = g_object_new (GST_TYPE_VAAPI_DISPLAY_X11, NULL);
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return gst_vaapi_display_config (display,
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GST_VAAPI_DISPLAY_INIT_FROM_NATIVE_DISPLAY, x11_display);
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}
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GstVaapiDisplay *
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gst_vaapi_display_x11_new_with_va_display (VADisplay va_display,
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Display * x11_display)
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{
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GstVaapiDisplay *display;
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GstVaapiDisplayInfo info = {
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.va_display = va_display,
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.native_display = x11_display,
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};
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g_return_val_if_fail (x11_display, NULL);
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display = g_object_new (GST_TYPE_VAAPI_DISPLAY_X11, NULL);
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return gst_vaapi_display_config (display,
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GST_VAAPI_DISPLAY_INIT_FROM_VA_DISPLAY, &info);
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}
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/**
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* gst_vaapi_display_x11_get_display:
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* @display: a #GstVaapiDisplayX11
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*
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* Returns the underlying X11 #Display that was created by
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* gst_vaapi_display_x11_new() or that was bound from
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* gst_vaapi_display_x11_new_with_display().
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*
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* Return value: the X11 #Display attached to @display
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*/
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Display *
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gst_vaapi_display_x11_get_display (GstVaapiDisplayX11 * display)
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{
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g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display), NULL);
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return GST_VAAPI_DISPLAY_XDISPLAY (display);
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}
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/**
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* gst_vaapi_display_x11_get_screen:
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* @display: a #GstVaapiDisplayX11
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*
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* Returns the default X11 screen that was created by
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* gst_vaapi_display_x11_new() or that was bound from
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* gst_vaapi_display_x11_new_with_display().
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*
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* Return value: the X11 #Display attached to @display
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*/
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int
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gst_vaapi_display_x11_get_screen (GstVaapiDisplayX11 * display)
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{
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g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display), -1);
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return GST_VAAPI_DISPLAY_XSCREEN (display);
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}
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/**
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* gst_vaapi_display_x11_set_synchronous:
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* @display: a #GstVaapiDisplayX11
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* @synchronous: boolean value that indicates whether to enable or
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* disable synchronization
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*
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* If @synchronous is %TRUE, gst_vaapi_display_x11_set_synchronous()
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* turns on synchronous behaviour on the underlying X11
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* display. Otherwise, synchronous behaviour is disabled if
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* @synchronous is %FALSE.
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*/
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void
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gst_vaapi_display_x11_set_synchronous (GstVaapiDisplayX11 * display,
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gboolean synchronous)
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{
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g_return_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display));
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set_synchronous (display, synchronous);
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}
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typedef struct _GstVaapiPixmapFormatX11 GstVaapiPixmapFormatX11;
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struct _GstVaapiPixmapFormatX11
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{
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GstVideoFormat format;
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gint depth;
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gint bpp;
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};
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static GstVideoFormat
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pix_fmt_to_video_format (gint depth, gint bpp)
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{
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GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
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switch (bpp) {
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case 16:
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if (depth == 15)
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format = GST_VIDEO_FORMAT_RGB15;
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else if (depth == 16)
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format = GST_VIDEO_FORMAT_RGB16;
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break;
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case 24:
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if (depth == 24)
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format = GST_VIDEO_FORMAT_RGB;
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break;
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case 32:
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if (depth == 24 || depth == 32)
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format = GST_VIDEO_FORMAT_xRGB;
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break;
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}
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return format;
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}
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static gboolean
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ensure_pix_fmts (GstVaapiDisplayX11 * display)
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{
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GstVaapiDisplayX11Private *const priv =
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GST_VAAPI_DISPLAY_X11_PRIVATE (display);
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XPixmapFormatValues *pix_fmts;
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int i, n, num_pix_fmts;
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if (priv->pixmap_formats)
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return TRUE;
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GST_VAAPI_DISPLAY_LOCK (display);
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pix_fmts = XListPixmapFormats (GST_VAAPI_DISPLAY_XDISPLAY (display),
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&num_pix_fmts);
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GST_VAAPI_DISPLAY_UNLOCK (display);
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if (!pix_fmts)
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return FALSE;
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priv->pixmap_formats = g_array_sized_new (FALSE, FALSE,
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sizeof (GstVaapiPixmapFormatX11), num_pix_fmts);
|
|
if (!priv->pixmap_formats) {
|
|
XFree (pix_fmts);
|
|
return FALSE;
|
|
}
|
|
|
|
for (i = 0, n = 0; i < num_pix_fmts; i++) {
|
|
GstVaapiPixmapFormatX11 *const pix_fmt =
|
|
&g_array_index (priv->pixmap_formats, GstVaapiPixmapFormatX11, n);
|
|
|
|
pix_fmt->depth = pix_fmts[i].depth;
|
|
pix_fmt->bpp = pix_fmts[i].bits_per_pixel;
|
|
pix_fmt->format = pix_fmt_to_video_format (pix_fmt->depth, pix_fmt->bpp);
|
|
if (pix_fmt->format != GST_VIDEO_FORMAT_UNKNOWN)
|
|
n++;
|
|
}
|
|
priv->pixmap_formats->len = n;
|
|
return TRUE;
|
|
}
|
|
|
|
/* Determine the GstVideoFormat based on a supported Pixmap depth */
|
|
GstVideoFormat
|
|
gst_vaapi_display_x11_get_pixmap_format (GstVaapiDisplayX11 * display,
|
|
guint depth)
|
|
{
|
|
if (ensure_pix_fmts (display)) {
|
|
GstVaapiDisplayX11Private *const priv =
|
|
GST_VAAPI_DISPLAY_X11_PRIVATE (display);
|
|
guint i;
|
|
|
|
for (i = 0; i < priv->pixmap_formats->len; i++) {
|
|
GstVaapiPixmapFormatX11 *const pix_fmt =
|
|
&g_array_index (priv->pixmap_formats, GstVaapiPixmapFormatX11, i);
|
|
if (pix_fmt->depth == depth)
|
|
return pix_fmt->format;
|
|
}
|
|
}
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
/* Determine the Pixmap depth based on a GstVideoFormat */
|
|
guint
|
|
gst_vaapi_display_x11_get_pixmap_depth (GstVaapiDisplayX11 * display,
|
|
GstVideoFormat format)
|
|
{
|
|
if (ensure_pix_fmts (display)) {
|
|
GstVaapiDisplayX11Private *const priv =
|
|
GST_VAAPI_DISPLAY_X11_PRIVATE (display);
|
|
guint i;
|
|
|
|
for (i = 0; i < priv->pixmap_formats->len; i++) {
|
|
GstVaapiPixmapFormatX11 *const pix_fmt =
|
|
&g_array_index (priv->pixmap_formats, GstVaapiPixmapFormatX11, i);
|
|
if (pix_fmt->format == format)
|
|
return pix_fmt->depth;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|