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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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437bc925f6
Move display types from gstvaapipluginutil.* to gstvaapidisplay.* so that we could simplify characterization of a GstVaapiDisplay. Also rename "auto" type to "any", and add a "display-type" attribute.
555 lines
16 KiB
C
555 lines
16 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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* Copyright (C) 2011-2012 Intel Corporation
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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 <string.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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#define DEBUG 1
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#include "gstvaapidebug.h"
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G_DEFINE_TYPE(GstVaapiDisplayX11,
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gst_vaapi_display_x11,
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GST_VAAPI_TYPE_DISPLAY);
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enum {
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PROP_0,
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PROP_SYNCHRONOUS,
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PROP_DISPLAY_NAME,
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PROP_X11_DISPLAY,
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PROP_X11_SCREEN
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};
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#define NAME_PREFIX "X11:"
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#define NAME_PREFIX_LENGTH 4
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static inline gboolean
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is_display_name(const gchar *display_name)
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{
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return strncmp(display_name, NAME_PREFIX, NAME_PREFIX_LENGTH) == 0;
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}
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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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static gboolean
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compare_display_name(gconstpointer a, gconstpointer b, gpointer user_data)
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{
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const gchar *cached_name = a, *cached_name_end;
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const gchar *tested_name = b, *tested_name_end;
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guint cached_name_length, tested_name_length;
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if (!cached_name || !is_display_name(cached_name))
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return FALSE;
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g_return_val_if_fail(tested_name && is_display_name(tested_name), FALSE);
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cached_name += NAME_PREFIX_LENGTH;
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cached_name_end = strchr(cached_name, ':');
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if (cached_name_end)
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cached_name_length = cached_name_end - cached_name;
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else
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cached_name_length = strlen(cached_name);
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tested_name += NAME_PREFIX_LENGTH;
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tested_name_end = strchr(tested_name, ':');
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if (tested_name_end)
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tested_name_length = tested_name_end - tested_name;
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else
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tested_name_length = strlen(tested_name);
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if (cached_name_length != tested_name_length)
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return FALSE;
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if (strncmp(cached_name, tested_name, cached_name_length) != 0)
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return FALSE;
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/* XXX: handle screen number? */
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return TRUE;
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}
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static void
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gst_vaapi_display_x11_finalize(GObject *object)
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{
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G_OBJECT_CLASS(gst_vaapi_display_x11_parent_class)->finalize(object);
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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(gpointer ptr)
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{
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GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(ptr);
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const gchar *display_name = display->priv->display_name;
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if (!display_name)
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return NULL;
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if (is_display_name(display_name)) {
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display_name += NAME_PREFIX_LENGTH;
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if (*display_name == '\0')
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return NULL;
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return display_name;
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}
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/* XXX: this should not happen */
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g_assert(0 && "display name without prefix");
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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 void
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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_printf("%s%s", NAME_PREFIX, display_name);
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}
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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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XSynchronize(priv->x11_display, synchronous);
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}
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}
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static void
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gst_vaapi_display_x11_set_property(
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GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
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switch (prop_id) {
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case PROP_SYNCHRONOUS:
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set_synchronous(display, g_value_get_boolean(value));
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break;
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case PROP_DISPLAY_NAME:
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set_display_name(display, g_value_get_string(value));
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break;
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case PROP_X11_DISPLAY:
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display->priv->x11_display = g_value_get_pointer(value);
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break;
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case PROP_X11_SCREEN:
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display->priv->x11_screen = g_value_get_int(value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_display_x11_get_property(
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GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
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switch (prop_id) {
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case PROP_SYNCHRONOUS:
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g_value_set_boolean(value, display->priv->synchronous);
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break;
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case PROP_DISPLAY_NAME:
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g_value_set_string(value, get_display_name(display));
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break;
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case PROP_X11_DISPLAY:
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g_value_set_pointer(value, gst_vaapi_display_x11_get_display(display));
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break;
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case PROP_X11_SCREEN:
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g_value_set_int(value, gst_vaapi_display_x11_get_screen(display));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_display_x11_constructed(GObject *object)
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{
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GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
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GstVaapiDisplayX11Private * const priv = display->priv;
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GstVaapiDisplayCache * const cache = gst_vaapi_display_get_cache();
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const GstVaapiDisplayInfo *info;
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GObjectClass *parent_class;
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priv->create_display = priv->x11_display == NULL;
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/* Don't create X11 display if there is one in the cache already */
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if (priv->create_display) {
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info = gst_vaapi_display_cache_lookup_by_name(
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cache,
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priv->display_name,
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compare_display_name, NULL
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);
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if (info) {
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priv->x11_display = info->native_display;
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priv->create_display = FALSE;
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}
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}
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/* Reset display-name if the user provided his own X11 display */
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if (!priv->create_display)
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set_display_name(display, XDisplayString(priv->x11_display));
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parent_class = G_OBJECT_CLASS(gst_vaapi_display_x11_parent_class);
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if (parent_class->constructed)
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parent_class->constructed(object);
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}
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static gboolean
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gst_vaapi_display_x11_open_display(GstVaapiDisplay *display)
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{
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GstVaapiDisplayX11Private * const priv =
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GST_VAAPI_DISPLAY_X11(display)->priv;
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if (priv->create_display) {
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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->x11_screen = DefaultScreen(priv->x11_display);
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}
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if (!priv->x11_display)
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return FALSE;
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if (priv->synchronous)
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XSynchronize(priv->x11_display, True);
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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(display)->priv;
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if (priv->x11_display) {
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if (priv->create_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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if (priv->display_name) {
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g_free(priv->display_name);
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priv->display_name = NULL;
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}
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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(display)->priv;
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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(display)->priv;
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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(
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GstVaapiDisplay *display,
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GstVaapiDisplayInfo *info
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)
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{
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GstVaapiDisplayX11Private * const priv =
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GST_VAAPI_DISPLAY_X11(display)->priv;
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GstVaapiDisplayCache *cache;
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const GstVaapiDisplayInfo *cached_info;
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/* Return any cached info even if child has its own VA display */
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cache = gst_vaapi_display_get_cache();
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if (!cache)
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return FALSE;
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cached_info = gst_vaapi_display_cache_lookup_by_native_display(
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cache, priv->x11_display);
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if (cached_info) {
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*info = *cached_info;
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return TRUE;
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}
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/* Otherwise, create VA display if there is none already */
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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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info->display_type = GST_VAAPI_DISPLAY_TYPE_X11;
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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(
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GstVaapiDisplay *display,
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guint *pwidth,
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guint *pheight
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)
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{
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GstVaapiDisplayX11Private * const priv =
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GST_VAAPI_DISPLAY_X11(display)->priv;
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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(
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GstVaapiDisplay *display,
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guint *pwidth,
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guint *pheight
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)
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{
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GstVaapiDisplayX11Private * const priv =
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GST_VAAPI_DISPLAY_X11(display)->priv;
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if (!priv->x11_display)
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return;
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if (pwidth)
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*pwidth = DisplayWidthMM(priv->x11_display, priv->x11_screen);
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if (pheight)
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*pheight = DisplayHeightMM(priv->x11_display, priv->x11_screen);
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}
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static void
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gst_vaapi_display_x11_class_init(GstVaapiDisplayX11Class *klass)
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{
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GObjectClass * const object_class = G_OBJECT_CLASS(klass);
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GstVaapiDisplayClass * const dpy_class = GST_VAAPI_DISPLAY_CLASS(klass);
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g_type_class_add_private(klass, sizeof(GstVaapiDisplayX11Private));
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object_class->finalize = gst_vaapi_display_x11_finalize;
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object_class->set_property = gst_vaapi_display_x11_set_property;
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object_class->get_property = gst_vaapi_display_x11_get_property;
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object_class->constructed = gst_vaapi_display_x11_constructed;
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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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/**
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* GstVaapiDisplayX11:synchronous:
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*
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* When enabled, runs the X display in synchronous mode. Note that
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* this is used only for debugging.
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*/
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g_object_class_install_property
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(object_class,
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PROP_SYNCHRONOUS,
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g_param_spec_boolean("synchronous",
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"Synchronous mode",
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"Toggles X display synchronous mode",
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FALSE,
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G_PARAM_READWRITE));
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/**
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* GstVaapiDisplayX11:x11-display:
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*
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* The X11 #Display that was created by gst_vaapi_display_x11_new()
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* or that was bound from gst_vaapi_display_x11_new_with_display().
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*/
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g_object_class_install_property
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(object_class,
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PROP_X11_DISPLAY,
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g_param_spec_pointer("x11-display",
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"X11 display",
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"X11 display",
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
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/**
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* GstVaapiDisplayX11:x11-screen:
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*
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* The X11 screen that was created by gst_vaapi_display_x11_new()
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* or that was bound from gst_vaapi_display_x11_new_with_display().
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*/
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g_object_class_install_property
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(object_class,
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PROP_X11_SCREEN,
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g_param_spec_int("x11-screen",
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"X11 screen",
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"X11 screen",
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0, G_MAXINT32, 0,
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
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/**
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* GstVaapiDisplayX11:display-name:
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*
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* The X11 display name.
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*/
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g_object_class_install_property
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(object_class,
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PROP_DISPLAY_NAME,
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g_param_spec_string("display-name",
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"X11 display name",
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"X11 display name",
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NULL,
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
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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 *priv = GST_VAAPI_DISPLAY_X11_GET_PRIVATE(display);
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display->priv = priv;
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priv->create_display = TRUE;
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priv->x11_display = NULL;
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priv->x11_screen = 0;
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priv->display_name = NULL;
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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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return g_object_new(GST_VAAPI_TYPE_DISPLAY_X11,
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"display-name", display_name,
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NULL);
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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)
|
|
{
|
|
g_return_val_if_fail(x11_display, NULL);
|
|
|
|
return g_object_new(GST_VAAPI_TYPE_DISPLAY_X11,
|
|
"x11-display", x11_display,
|
|
"x11-screen", DefaultScreen(x11_display),
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_display_x11_get_display:
|
|
* @display: a #GstVaapiDisplayX11
|
|
*
|
|
* Returns the underlying X11 #Display that was created by
|
|
* gst_vaapi_display_x11_new() or that was bound from
|
|
* gst_vaapi_display_x11_new_with_display().
|
|
*
|
|
* Return value: the X11 #Display attached to @display
|
|
*/
|
|
Display *
|
|
gst_vaapi_display_x11_get_display(GstVaapiDisplayX11 *display)
|
|
{
|
|
g_return_val_if_fail(GST_VAAPI_IS_DISPLAY_X11(display), NULL);
|
|
|
|
return display->priv->x11_display;
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_display_x11_get_screen:
|
|
* @display: a #GstVaapiDisplayX11
|
|
*
|
|
* Returns the default X11 screen that was created by
|
|
* gst_vaapi_display_x11_new() or that was bound from
|
|
* gst_vaapi_display_x11_new_with_display().
|
|
*
|
|
* Return value: the X11 #Display attached to @display
|
|
*/
|
|
int
|
|
gst_vaapi_display_x11_get_screen(GstVaapiDisplayX11 *display)
|
|
{
|
|
g_return_val_if_fail(GST_VAAPI_IS_DISPLAY_X11(display), -1);
|
|
|
|
return display->priv->x11_screen;
|
|
}
|