mutter/src/backends/meta-screen-cast-virtual-stream.c

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/*
* Copyright (C) 2021 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include "backends/meta-screen-cast-virtual-stream.h"
#include "backends/meta-eis.h"
#include "backends/meta-logical-monitor.h"
#include "backends/meta-screen-cast-virtual-stream-src.h"
#include "backends/meta-virtual-monitor.h"
struct _MetaScreenCastVirtualStream
{
MetaScreenCastStream parent;
};
static void meta_eis_viewport_iface_init (MetaEisViewportInterface *eis_viewport_iface);
G_DEFINE_TYPE_WITH_CODE (MetaScreenCastVirtualStream,
meta_screen_cast_virtual_stream,
META_TYPE_SCREEN_CAST_STREAM,
G_IMPLEMENT_INTERFACE (META_TYPE_EIS_VIEWPORT,
meta_eis_viewport_iface_init))
MetaScreenCastVirtualStream *
meta_screen_cast_virtual_stream_new (MetaScreenCastSession *session,
GDBusConnection *connection,
MetaScreenCastCursorMode cursor_mode,
MetaScreenCastFlag flags,
GError **error)
{
MetaScreenCastVirtualStream *virtual_stream;
virtual_stream = g_initable_new (META_TYPE_SCREEN_CAST_VIRTUAL_STREAM,
NULL,
error,
"session", session,
"connection", connection,
"cursor-mode", cursor_mode,
"flags", flags,
NULL);
if (!virtual_stream)
return NULL;
return virtual_stream;
}
static gboolean
meta_screen_cast_virtual_stream_is_standalone (MetaEisViewport *viewport)
{
return FALSE;
}
static const char *
meta_screen_cast_virtual_stream_get_mapping_id (MetaEisViewport *viewport)
{
MetaScreenCastStream *stream = META_SCREEN_CAST_STREAM (viewport);
return meta_screen_cast_stream_get_mapping_id (stream);
}
static gboolean
meta_screen_cast_virtual_stream_get_position (MetaEisViewport *viewport,
int *out_x,
int *out_y)
{
MetaScreenCastVirtualStream *virtual_stream =
META_SCREEN_CAST_VIRTUAL_STREAM (viewport);
MetaScreenCastStream *stream = META_SCREEN_CAST_STREAM (virtual_stream);
MetaScreenCastStreamSrc *src = meta_screen_cast_stream_get_src (stream);
MetaScreenCastVirtualStreamSrc *virtual_src =
META_SCREEN_CAST_VIRTUAL_STREAM_SRC (src);
MetaLogicalMonitor *logical_monitor =
meta_screen_cast_virtual_stream_src_logical_monitor (virtual_src);
MtkRectangle layout;
layout = meta_logical_monitor_get_layout (logical_monitor);
*out_x = layout.x;
*out_y = layout.y;
return TRUE;
}
static void
meta_screen_cast_virtual_stream_get_size (MetaEisViewport *viewport,
int *out_width,
int *out_height)
{
MetaScreenCastVirtualStream *virtual_stream =
META_SCREEN_CAST_VIRTUAL_STREAM (viewport);
MetaScreenCastStream *stream = META_SCREEN_CAST_STREAM (virtual_stream);
MetaScreenCastStreamSrc *src = meta_screen_cast_stream_get_src (stream);
MetaScreenCastVirtualStreamSrc *virtual_src =
META_SCREEN_CAST_VIRTUAL_STREAM_SRC (src);
MetaLogicalMonitor *logical_monitor =
meta_screen_cast_virtual_stream_src_logical_monitor (virtual_src);
MtkRectangle layout;
layout = meta_logical_monitor_get_layout (logical_monitor);
*out_width = layout.width;
*out_height = layout.height;
}
static double
meta_screen_cast_virtual_stream_get_physical_scale (MetaEisViewport *viewport)
{
MetaScreenCastVirtualStream *virtual_stream =
META_SCREEN_CAST_VIRTUAL_STREAM (viewport);
MetaScreenCastStream *stream = META_SCREEN_CAST_STREAM (virtual_stream);
MetaScreenCastStreamSrc *src = meta_screen_cast_stream_get_src (stream);
MetaScreenCastVirtualStreamSrc *virtual_src =
META_SCREEN_CAST_VIRTUAL_STREAM_SRC (src);
MetaLogicalMonitor *logical_monitor =
meta_screen_cast_virtual_stream_src_logical_monitor (virtual_src);
return meta_logical_monitor_get_scale (logical_monitor);
}
static gboolean
meta_screen_cast_virtual_stream_transform_coordinate (MetaEisViewport *viewport,
double x,
double y,
double *out_x,
double *out_y)
{
*out_x = x;
*out_y = y;
return TRUE;
}
static void
meta_eis_viewport_iface_init (MetaEisViewportInterface *eis_viewport_iface)
{
eis_viewport_iface->is_standalone = meta_screen_cast_virtual_stream_is_standalone;
eis_viewport_iface->get_mapping_id = meta_screen_cast_virtual_stream_get_mapping_id;
eis_viewport_iface->get_position = meta_screen_cast_virtual_stream_get_position;
eis_viewport_iface->get_size = meta_screen_cast_virtual_stream_get_size;
eis_viewport_iface->get_physical_scale = meta_screen_cast_virtual_stream_get_physical_scale;
eis_viewport_iface->transform_coordinate = meta_screen_cast_virtual_stream_transform_coordinate;
}
static MetaScreenCastStreamSrc *
meta_screen_cast_virtual_stream_create_src (MetaScreenCastStream *stream,
GError **error)
{
MetaScreenCastVirtualStream *virtual_stream =
META_SCREEN_CAST_VIRTUAL_STREAM (stream);
MetaScreenCastVirtualStreamSrc *virtual_stream_src;
virtual_stream_src = meta_screen_cast_virtual_stream_src_new (virtual_stream,
error);
if (!virtual_stream_src)
return NULL;
return META_SCREEN_CAST_STREAM_SRC (virtual_stream_src);
}
static void
meta_screen_cast_virtual_stream_set_parameters (MetaScreenCastStream *stream,
GVariantBuilder *parameters_builder)
{
}
static gboolean
meta_screen_cast_virtual_stream_transform_position (MetaScreenCastStream *stream,
double stream_x,
double stream_y,
double *x,
double *y)
{
MetaScreenCastStreamSrc *src = meta_screen_cast_stream_get_src (stream);
MetaScreenCastVirtualStreamSrc *virtual_src =
META_SCREEN_CAST_VIRTUAL_STREAM_SRC (src);
ClutterStageView *view;
MtkRectangle view_layout;
if (!meta_screen_cast_stream_src_is_enabled (src))
return FALSE;
view = meta_screen_cast_virtual_stream_src_get_view (virtual_src);
if (!view)
return FALSE;
clutter_stage_view_get_layout (view, &view_layout);
*x = stream_x + view_layout.x;
*y = stream_y + view_layout.y;
return TRUE;
}
static void
meta_screen_cast_virtual_stream_init (MetaScreenCastVirtualStream *virtual_stream)
{
}
static void
meta_screen_cast_virtual_stream_class_init (MetaScreenCastVirtualStreamClass *klass)
{
MetaScreenCastStreamClass *stream_class =
META_SCREEN_CAST_STREAM_CLASS (klass);
stream_class->create_src = meta_screen_cast_virtual_stream_create_src;
stream_class->set_parameters = meta_screen_cast_virtual_stream_set_parameters;
stream_class->transform_position = meta_screen_cast_virtual_stream_transform_position;
}