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9be189daa7
Make the monitor implementation do things strictly related to its own source type, leaving the Spa related logic and cursor read back in the generic layer, later to be reused by the window source type implementation. https://gitlab.gnome.org/GNOME/mutter/merge_requests/413
475 lines
16 KiB
C
475 lines
16 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2017 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*/
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#include "config.h"
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#include "backends/meta-screen-cast-monitor-stream-src.h"
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#include <spa/buffer/meta.h>
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#include "backends/meta-backend-private.h"
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#include "backends/meta-cursor-tracker-private.h"
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#include "backends/meta-logical-monitor.h"
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#include "backends/meta-monitor.h"
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#include "backends/meta-screen-cast-monitor-stream.h"
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#include "backends/meta-screen-cast-session.h"
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#include "clutter/clutter.h"
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#include "clutter/clutter-mutter.h"
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#include "core/boxes-private.h"
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struct _MetaScreenCastMonitorStreamSrc
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{
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MetaScreenCastStreamSrc parent;
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gboolean cursor_bitmap_invalid;
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gulong actors_painted_handler_id;
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gulong paint_handler_id;
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gulong cursor_moved_handler_id;
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gulong cursor_changed_handler_id;
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};
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static void
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hw_cursor_inhibitor_iface_init (MetaHwCursorInhibitorInterface *iface);
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G_DEFINE_TYPE_WITH_CODE (MetaScreenCastMonitorStreamSrc,
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meta_screen_cast_monitor_stream_src,
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META_TYPE_SCREEN_CAST_STREAM_SRC,
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G_IMPLEMENT_INTERFACE (META_TYPE_HW_CURSOR_INHIBITOR,
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hw_cursor_inhibitor_iface_init))
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static ClutterStage *
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get_stage (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaScreenCastStreamSrc *src;
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MetaScreenCastStream *stream;
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MetaScreenCastMonitorStream *monitor_stream;
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src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
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stream = meta_screen_cast_stream_src_get_stream (src);
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monitor_stream = META_SCREEN_CAST_MONITOR_STREAM (stream);
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return meta_screen_cast_monitor_stream_get_stage (monitor_stream);
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}
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static MetaMonitor *
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get_monitor (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaScreenCastStreamSrc *src;
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MetaScreenCastStream *stream;
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MetaScreenCastMonitorStream *monitor_stream;
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src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
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stream = meta_screen_cast_stream_src_get_stream (src);
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monitor_stream = META_SCREEN_CAST_MONITOR_STREAM (stream);
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return meta_screen_cast_monitor_stream_get_monitor (monitor_stream);
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}
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static void
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meta_screen_cast_monitor_stream_src_get_specs (MetaScreenCastStreamSrc *src,
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int *width,
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int *height,
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float *frame_rate)
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{
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MetaScreenCastMonitorStreamSrc *monitor_src =
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META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
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MetaMonitor *monitor;
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MetaLogicalMonitor *logical_monitor;
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float scale;
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MetaMonitorMode *mode;
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monitor = get_monitor (monitor_src);
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logical_monitor = meta_monitor_get_logical_monitor (monitor);
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mode = meta_monitor_get_current_mode (monitor);
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if (meta_is_stage_views_scaled ())
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scale = logical_monitor->scale;
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else
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scale = 1.0;
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*width = (int) roundf (logical_monitor->rect.width * scale);
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*height = (int) roundf (logical_monitor->rect.height * scale);
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*frame_rate = meta_monitor_mode_get_refresh_rate (mode);
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}
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static void
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stage_painted (ClutterActor *actor,
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MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
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meta_screen_cast_stream_src_maybe_record_frame (src);
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}
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static MetaBackend *
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get_backend (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastSession *session = meta_screen_cast_stream_get_session (stream);
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MetaScreenCast *screen_cast =
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meta_screen_cast_session_get_screen_cast (session);
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return meta_screen_cast_get_backend (screen_cast);
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}
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static gboolean
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is_cursor_in_stream (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaBackend *backend = get_backend (monitor_src);
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MetaCursorRenderer *cursor_renderer =
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meta_backend_get_cursor_renderer (backend);
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MetaMonitor *monitor;
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MetaLogicalMonitor *logical_monitor;
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MetaRectangle logical_monitor_layout;
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ClutterRect logical_monitor_rect;
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MetaCursorSprite *cursor_sprite;
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monitor = get_monitor (monitor_src);
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logical_monitor = meta_monitor_get_logical_monitor (monitor);
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logical_monitor_layout = meta_logical_monitor_get_layout (logical_monitor);
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logical_monitor_rect =
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meta_rectangle_to_clutter_rect (&logical_monitor_layout);
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cursor_sprite = meta_cursor_renderer_get_cursor (cursor_renderer);
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if (cursor_sprite)
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{
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ClutterRect cursor_rect;
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cursor_rect = meta_cursor_renderer_calculate_rect (cursor_renderer,
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cursor_sprite);
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return clutter_rect_intersection (&cursor_rect,
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&logical_monitor_rect,
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NULL);
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}
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else
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{
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ClutterPoint cursor_position;
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cursor_position = meta_cursor_renderer_get_position (cursor_renderer);
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return clutter_rect_contains_point (&logical_monitor_rect,
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&cursor_position);
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}
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}
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static void
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sync_cursor_state (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
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ClutterStage *stage = get_stage (monitor_src);
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if (!is_cursor_in_stream (monitor_src))
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return;
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if (clutter_stage_is_redraw_queued (stage))
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return;
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meta_screen_cast_stream_src_maybe_record_frame (src);
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}
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static void
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cursor_moved (MetaCursorTracker *cursor_tracker,
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float x,
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float y,
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MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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sync_cursor_state (monitor_src);
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}
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static void
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cursor_changed (MetaCursorTracker *cursor_tracker,
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MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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monitor_src->cursor_bitmap_invalid = TRUE;
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sync_cursor_state (monitor_src);
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}
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static MetaCursorRenderer *
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get_cursor_renderer (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastSession *session = meta_screen_cast_stream_get_session (stream);
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MetaScreenCast *screen_cast =
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meta_screen_cast_session_get_screen_cast (session);
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MetaBackend *backend = meta_screen_cast_get_backend (screen_cast);
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return meta_backend_get_cursor_renderer (backend);
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}
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static void
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inhibit_hw_cursor (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaCursorRenderer *cursor_renderer;
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MetaHwCursorInhibitor *inhibitor;
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cursor_renderer = get_cursor_renderer (monitor_src);
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inhibitor = META_HW_CURSOR_INHIBITOR (monitor_src);
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meta_cursor_renderer_add_hw_cursor_inhibitor (cursor_renderer, inhibitor);
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}
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static void
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uninhibit_hw_cursor (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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MetaCursorRenderer *cursor_renderer;
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MetaHwCursorInhibitor *inhibitor;
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cursor_renderer = get_cursor_renderer (monitor_src);
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inhibitor = META_HW_CURSOR_INHIBITOR (monitor_src);
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meta_cursor_renderer_remove_hw_cursor_inhibitor (cursor_renderer, inhibitor);
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}
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static void
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meta_screen_cast_monitor_stream_src_enable (MetaScreenCastStreamSrc *src)
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{
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MetaScreenCastMonitorStreamSrc *monitor_src =
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META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
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MetaBackend *backend = get_backend (monitor_src);
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MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
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ClutterStage *stage;
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MetaScreenCastStream *stream;
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stream = meta_screen_cast_stream_src_get_stream (src);
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stage = get_stage (monitor_src);
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switch (meta_screen_cast_stream_get_cursor_mode (stream))
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{
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case META_SCREEN_CAST_CURSOR_MODE_METADATA:
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monitor_src->cursor_moved_handler_id =
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g_signal_connect_after (cursor_tracker, "cursor-moved",
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G_CALLBACK (cursor_moved),
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monitor_src);
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monitor_src->cursor_changed_handler_id =
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g_signal_connect_after (cursor_tracker, "cursor-changed",
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G_CALLBACK (cursor_changed),
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monitor_src);
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/* Intentional fall-through */
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case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
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monitor_src->actors_painted_handler_id =
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g_signal_connect (stage, "actors-painted",
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G_CALLBACK (stage_painted),
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monitor_src);
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break;
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case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
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inhibit_hw_cursor (monitor_src);
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monitor_src->paint_handler_id =
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g_signal_connect_after (stage, "paint",
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G_CALLBACK (stage_painted),
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monitor_src);
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break;
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}
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clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
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}
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static void
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meta_screen_cast_monitor_stream_src_disable (MetaScreenCastStreamSrc *src)
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{
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MetaScreenCastMonitorStreamSrc *monitor_src =
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META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
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MetaBackend *backend = get_backend (monitor_src);
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MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
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ClutterStage *stage;
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stage = get_stage (monitor_src);
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if (monitor_src->actors_painted_handler_id)
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{
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g_signal_handler_disconnect (stage,
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monitor_src->actors_painted_handler_id);
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monitor_src->actors_painted_handler_id = 0;
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}
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if (monitor_src->paint_handler_id)
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{
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g_signal_handler_disconnect (stage,
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monitor_src->paint_handler_id);
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monitor_src->paint_handler_id = 0;
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uninhibit_hw_cursor (monitor_src);
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}
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if (monitor_src->cursor_moved_handler_id)
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{
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g_signal_handler_disconnect (cursor_tracker,
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monitor_src->cursor_moved_handler_id);
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monitor_src->cursor_moved_handler_id = 0;
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}
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if (monitor_src->cursor_changed_handler_id)
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{
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g_signal_handler_disconnect (cursor_tracker,
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monitor_src->cursor_changed_handler_id);
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monitor_src->cursor_changed_handler_id = 0;
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}
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}
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static gboolean
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meta_screen_cast_monitor_stream_src_record_frame (MetaScreenCastStreamSrc *src,
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uint8_t *data)
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{
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MetaScreenCastMonitorStreamSrc *monitor_src =
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META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
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ClutterStage *stage;
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MetaMonitor *monitor;
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MetaLogicalMonitor *logical_monitor;
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stage = get_stage (monitor_src);
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if (!clutter_stage_is_redraw_queued (stage))
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return FALSE;
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monitor = get_monitor (monitor_src);
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logical_monitor = meta_monitor_get_logical_monitor (monitor);
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clutter_stage_capture_into (stage, FALSE, &logical_monitor->rect, data);
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return TRUE;
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}
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static void
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meta_screen_cast_monitor_stream_src_set_cursor_metadata (MetaScreenCastStreamSrc *src,
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struct spa_meta_cursor *spa_meta_cursor)
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{
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MetaScreenCastMonitorStreamSrc *monitor_src =
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META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
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MetaBackend *backend = get_backend (monitor_src);
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MetaCursorRenderer *cursor_renderer =
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meta_backend_get_cursor_renderer (backend);
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MetaRenderer *renderer = meta_backend_get_renderer (backend);
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MetaCursorSprite *cursor_sprite;
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MetaMonitor *monitor;
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MetaLogicalMonitor *logical_monitor;
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MetaRectangle logical_monitor_layout;
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ClutterRect logical_monitor_rect;
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MetaRendererView *view;
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float view_scale;
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ClutterPoint cursor_position;
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int x, y;
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cursor_sprite = meta_cursor_renderer_get_cursor (cursor_renderer);
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if (!is_cursor_in_stream (monitor_src))
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{
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meta_screen_cast_stream_src_unset_cursor_metadata (src,
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spa_meta_cursor);
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return;
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}
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monitor = get_monitor (monitor_src);
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logical_monitor = meta_monitor_get_logical_monitor (monitor);
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logical_monitor_layout = meta_logical_monitor_get_layout (logical_monitor);
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logical_monitor_rect =
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meta_rectangle_to_clutter_rect (&logical_monitor_layout);
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view = meta_renderer_get_view_from_logical_monitor (renderer,
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logical_monitor);
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if (view)
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view_scale = clutter_stage_view_get_scale (CLUTTER_STAGE_VIEW (view));
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else
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view_scale = 1.0;
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cursor_position = meta_cursor_renderer_get_position (cursor_renderer);
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cursor_position.x -= logical_monitor_rect.origin.x;
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cursor_position.y -= logical_monitor_rect.origin.y;
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cursor_position.x *= view_scale;
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cursor_position.y *= view_scale;
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x = (int) roundf (cursor_position.x);
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y = (int) roundf (cursor_position.y);
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if (monitor_src->cursor_bitmap_invalid)
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{
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if (cursor_sprite)
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{
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float cursor_scale;
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float scale;
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cursor_scale = meta_cursor_sprite_get_texture_scale (cursor_sprite);
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scale = view_scale * cursor_scale;
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meta_screen_cast_stream_src_set_cursor_sprite_metadata (src,
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spa_meta_cursor,
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cursor_sprite,
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x, y,
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scale);
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}
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else
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{
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meta_screen_cast_stream_src_set_empty_cursor_sprite_metadata (src,
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spa_meta_cursor,
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x, y);
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}
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monitor_src->cursor_bitmap_invalid = FALSE;
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}
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else
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{
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meta_screen_cast_stream_src_set_cursor_position_metadata (src,
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spa_meta_cursor,
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x, y);
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}
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}
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static gboolean
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meta_screen_cast_monitor_stream_src_is_cursor_sprite_inhibited (MetaHwCursorInhibitor *inhibitor,
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MetaCursorSprite *cursor_sprite)
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{
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MetaScreenCastMonitorStreamSrc *monitor_src =
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META_SCREEN_CAST_MONITOR_STREAM_SRC (inhibitor);
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return is_cursor_in_stream (monitor_src);
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}
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static void
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hw_cursor_inhibitor_iface_init (MetaHwCursorInhibitorInterface *iface)
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{
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iface->is_cursor_sprite_inhibited =
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meta_screen_cast_monitor_stream_src_is_cursor_sprite_inhibited;
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}
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MetaScreenCastMonitorStreamSrc *
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meta_screen_cast_monitor_stream_src_new (MetaScreenCastMonitorStream *monitor_stream,
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GError **error)
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{
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return g_initable_new (META_TYPE_SCREEN_CAST_MONITOR_STREAM_SRC, NULL, error,
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"stream", monitor_stream,
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NULL);
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}
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static void
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meta_screen_cast_monitor_stream_src_init (MetaScreenCastMonitorStreamSrc *monitor_src)
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{
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monitor_src->cursor_bitmap_invalid = TRUE;
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}
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static void
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meta_screen_cast_monitor_stream_src_class_init (MetaScreenCastMonitorStreamSrcClass *klass)
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{
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MetaScreenCastStreamSrcClass *src_class =
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META_SCREEN_CAST_STREAM_SRC_CLASS (klass);
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src_class->get_specs = meta_screen_cast_monitor_stream_src_get_specs;
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src_class->enable = meta_screen_cast_monitor_stream_src_enable;
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src_class->disable = meta_screen_cast_monitor_stream_src_disable;
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src_class->record_frame = meta_screen_cast_monitor_stream_src_record_frame;
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src_class->set_cursor_metadata =
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meta_screen_cast_monitor_stream_src_set_cursor_metadata;
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}
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