mutter/src/backends/meta-screen-cast-monitor-stream.c
2022-12-17 13:52:51 +00:00

302 lines
10 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2017 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#include "config.h"
#include "backends/meta-screen-cast-monitor-stream.h"
#include "backends/meta-logical-monitor.h"
#include "backends/meta-screen-cast-monitor-stream-src.h"
enum
{
PROP_0,
PROP_MONITOR,
};
struct _MetaScreenCastMonitorStream
{
MetaScreenCastStream parent;
ClutterStage *stage;
MetaMonitor *monitor;
MetaLogicalMonitor *logical_monitor;
};
G_DEFINE_TYPE (MetaScreenCastMonitorStream,
meta_screen_cast_monitor_stream,
META_TYPE_SCREEN_CAST_STREAM)
static gboolean
update_monitor (MetaScreenCastMonitorStream *monitor_stream,
MetaMonitor *new_monitor)
{
MetaLogicalMonitor *new_logical_monitor;
new_logical_monitor = meta_monitor_get_logical_monitor (new_monitor);
if (!new_logical_monitor)
return FALSE;
if (!meta_rectangle_equal (&new_logical_monitor->rect,
&monitor_stream->logical_monitor->rect))
return FALSE;
g_set_object (&monitor_stream->monitor, new_monitor);
g_set_object (&monitor_stream->logical_monitor, new_logical_monitor);
return TRUE;
}
static void
on_monitors_changed (MetaMonitorManager *monitor_manager,
MetaScreenCastMonitorStream *monitor_stream)
{
MetaMonitor *new_monitor = NULL;
GList *monitors;
GList *l;
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *other_monitor = l->data;
if (meta_monitor_is_same_as (monitor_stream->monitor, other_monitor))
{
new_monitor = other_monitor;
break;
}
}
if (!new_monitor || !update_monitor (monitor_stream, new_monitor))
meta_screen_cast_stream_close (META_SCREEN_CAST_STREAM (monitor_stream));
}
ClutterStage *
meta_screen_cast_monitor_stream_get_stage (MetaScreenCastMonitorStream *monitor_stream)
{
return monitor_stream->stage;
}
MetaMonitor *
meta_screen_cast_monitor_stream_get_monitor (MetaScreenCastMonitorStream *monitor_stream)
{
return monitor_stream->monitor;
}
MetaScreenCastMonitorStream *
meta_screen_cast_monitor_stream_new (MetaScreenCastSession *session,
GDBusConnection *connection,
MetaMonitor *monitor,
ClutterStage *stage,
MetaScreenCastCursorMode cursor_mode,
MetaScreenCastFlag flags,
GError **error)
{
MetaBackend *backend = meta_monitor_get_backend (monitor);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaScreenCastMonitorStream *monitor_stream;
if (!meta_monitor_is_active (monitor))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Monitor not active");
return NULL;
}
monitor_stream = g_initable_new (META_TYPE_SCREEN_CAST_MONITOR_STREAM,
NULL,
error,
"session", session,
"connection", connection,
"cursor-mode", cursor_mode,
"flags", flags,
"monitor", monitor,
NULL);
if (!monitor_stream)
return NULL;
monitor_stream->stage = stage;
g_signal_connect_object (monitor_manager, "monitors-changed-internal",
G_CALLBACK (on_monitors_changed),
monitor_stream, 0);
return monitor_stream;
}
static MetaScreenCastStreamSrc *
meta_screen_cast_monitor_stream_create_src (MetaScreenCastStream *stream,
GError **error)
{
MetaScreenCastMonitorStream *monitor_stream =
META_SCREEN_CAST_MONITOR_STREAM (stream);
MetaScreenCastMonitorStreamSrc *monitor_stream_src;
monitor_stream_src = meta_screen_cast_monitor_stream_src_new (monitor_stream,
error);
if (!monitor_stream_src)
return NULL;
return META_SCREEN_CAST_STREAM_SRC (monitor_stream_src);
}
static void
meta_screen_cast_monitor_stream_set_parameters (MetaScreenCastStream *stream,
GVariantBuilder *parameters_builder)
{
MetaScreenCastMonitorStream *monitor_stream =
META_SCREEN_CAST_MONITOR_STREAM (stream);
MetaRectangle logical_monitor_layout;
const char *output_name;
logical_monitor_layout =
meta_logical_monitor_get_layout (monitor_stream->logical_monitor);
g_variant_builder_add (parameters_builder, "{sv}",
"position",
g_variant_new ("(ii)",
logical_monitor_layout.x,
logical_monitor_layout.y));
g_variant_builder_add (parameters_builder, "{sv}",
"size",
g_variant_new ("(ii)",
logical_monitor_layout.width,
logical_monitor_layout.height));
output_name = meta_monitor_get_connector (monitor_stream->monitor);
g_variant_builder_add (parameters_builder, "{sv}", "output-name",
g_variant_new ("s", output_name));
}
static gboolean
meta_screen_cast_monitor_stream_transform_position (MetaScreenCastStream *stream,
double stream_x,
double stream_y,
double *x,
double *y)
{
MetaScreenCastMonitorStream *monitor_stream =
META_SCREEN_CAST_MONITOR_STREAM (stream);
MetaBackend *backend = meta_monitor_get_backend (monitor_stream->monitor);
MetaRectangle logical_monitor_layout;
double scale;
logical_monitor_layout =
meta_logical_monitor_get_layout (monitor_stream->logical_monitor);
if (meta_backend_is_stage_views_scaled (backend))
scale = meta_logical_monitor_get_scale (monitor_stream->logical_monitor);
else
scale = 1.0;
*x = logical_monitor_layout.x + stream_x / scale;
*y = logical_monitor_layout.y + stream_y / scale;
return TRUE;
}
static void
meta_screen_cast_monitor_stream_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaScreenCastMonitorStream *monitor_stream =
META_SCREEN_CAST_MONITOR_STREAM (object);
MetaLogicalMonitor *logical_monitor;
switch (prop_id)
{
case PROP_MONITOR:
g_set_object (&monitor_stream->monitor, g_value_get_object (value));
logical_monitor = meta_monitor_get_logical_monitor (monitor_stream->monitor);
g_set_object (&monitor_stream->logical_monitor, logical_monitor);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_screen_cast_monitor_stream_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaScreenCastMonitorStream *monitor_stream =
META_SCREEN_CAST_MONITOR_STREAM (object);
switch (prop_id)
{
case PROP_MONITOR:
g_value_set_object (value, monitor_stream->monitor);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_screen_cast_monitor_stream_finalize (GObject *object)
{
MetaScreenCastMonitorStream *monitor_stream =
META_SCREEN_CAST_MONITOR_STREAM (object);
g_clear_object (&monitor_stream->monitor);
g_clear_object (&monitor_stream->logical_monitor);
G_OBJECT_CLASS (meta_screen_cast_monitor_stream_parent_class)->finalize (object);
}
static void
meta_screen_cast_monitor_stream_init (MetaScreenCastMonitorStream *monitor_stream)
{
}
static void
meta_screen_cast_monitor_stream_class_init (MetaScreenCastMonitorStreamClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaScreenCastStreamClass *stream_class =
META_SCREEN_CAST_STREAM_CLASS (klass);
object_class->set_property = meta_screen_cast_monitor_stream_set_property;
object_class->get_property = meta_screen_cast_monitor_stream_get_property;
object_class->finalize = meta_screen_cast_monitor_stream_finalize;
stream_class->create_src = meta_screen_cast_monitor_stream_create_src;
stream_class->set_parameters = meta_screen_cast_monitor_stream_set_parameters;
stream_class->transform_position = meta_screen_cast_monitor_stream_transform_position;
g_object_class_install_property (object_class,
PROP_MONITOR,
g_param_spec_object ("monitor",
"monitor",
"MetaMonitor",
META_TYPE_MONITOR,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}