mirror of
https://github.com/brl/mutter.git
synced 2024-11-28 02:50:41 -05:00
9bab8e8751
During animation or other things that cause multiple frames in a row being painted, we might skip recording frames if the max framerate is reached. Doing so means we might end up skipping the last frame in a series, ending with the last frame we sent was not the last one, making things appear to get stuck sometimes. Handle this by creating a timeout if we ever throttle, and at the time the timeout callback is triggered, make sure we eventually send an up to date frame. This is handle differently depending on the source type. A monitor source type reports 1x1 pixel damage on each view its monitor overlaps, while a window source type simply records a frame from the surface directly, except without recording a timestamp, so that timestamps always refer to when damage actually happened. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1361
605 lines
20 KiB
C
605 lines
20 KiB
C
/*
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* Copyright (C) 2020 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-area-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-screen-cast-area-stream.h"
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#include "backends/meta-screen-cast-session.h"
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#include "backends/meta-stage-private.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 _MetaScreenCastAreaStreamSrc
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{
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MetaScreenCastStreamSrc parent;
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gboolean cursor_bitmap_invalid;
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gboolean hw_cursor_inhibited;
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GList *watches;
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gulong cursor_moved_handler_id;
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gulong cursor_changed_handler_id;
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guint maybe_record_idle_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 (MetaScreenCastAreaStreamSrc,
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meta_screen_cast_area_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 (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaScreenCastStreamSrc *src;
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MetaScreenCastStream *stream;
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MetaScreenCastAreaStream *area_stream;
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src = META_SCREEN_CAST_STREAM_SRC (area_src);
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stream = meta_screen_cast_stream_src_get_stream (src);
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area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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return meta_screen_cast_area_stream_get_stage (area_stream);
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}
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static MetaBackend *
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get_backend (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_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 MetaCursorRenderer *
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get_cursor_renderer (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_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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meta_screen_cast_area_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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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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MetaRectangle *area;
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float scale;
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area = meta_screen_cast_area_stream_get_area (area_stream);
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scale = meta_screen_cast_area_stream_get_scale (area_stream);
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*width = (int) roundf (area->width * scale);
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*height = (int) roundf (area->height * scale);
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*frame_rate = 60.0;
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}
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static gboolean
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is_cursor_in_stream (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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MetaBackend *backend = get_backend (area_src);
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MetaCursorRenderer *cursor_renderer =
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meta_backend_get_cursor_renderer (backend);
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MetaRectangle *area;
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graphene_rect_t area_rect;
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MetaCursorSprite *cursor_sprite;
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area = meta_screen_cast_area_stream_get_area (area_stream);
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area_rect = meta_rectangle_to_graphene_rect (area);
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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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graphene_rect_t 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 graphene_rect_intersection (&cursor_rect, &area_rect, NULL);
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}
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else
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{
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graphene_point_t cursor_position;
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cursor_position = meta_cursor_renderer_get_position (cursor_renderer);
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return graphene_rect_contains_point (&area_rect, &cursor_position);
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}
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}
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static gboolean
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is_redraw_queued (MetaScreenCastAreaStreamSrc *area_src)
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{
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ClutterStage *stage = get_stage (area_src);
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GList *l;
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for (l = clutter_stage_peek_stage_views (stage); l; l = l->next)
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{
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ClutterStageView *view = l->data;
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if (clutter_stage_is_redraw_queued_on_view (stage, view))
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return TRUE;
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}
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return FALSE;
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}
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static void
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sync_cursor_state (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_src);
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MetaScreenCastRecordFlag flags;
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if (!is_cursor_in_stream (area_src))
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return;
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if (is_redraw_queued (area_src))
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return;
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flags = META_SCREEN_CAST_RECORD_FLAG_CURSOR_ONLY;
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meta_screen_cast_stream_src_maybe_record_frame (src, flags);
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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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MetaScreenCastAreaStreamSrc *area_src)
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{
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sync_cursor_state (area_src);
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}
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static void
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cursor_changed (MetaCursorTracker *cursor_tracker,
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MetaScreenCastAreaStreamSrc *area_src)
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{
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area_src->cursor_bitmap_invalid = TRUE;
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sync_cursor_state (area_src);
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}
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static void
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inhibit_hw_cursor (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaCursorRenderer *cursor_renderer;
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MetaHwCursorInhibitor *inhibitor;
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g_return_if_fail (!area_src->hw_cursor_inhibited);
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cursor_renderer = get_cursor_renderer (area_src);
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inhibitor = META_HW_CURSOR_INHIBITOR (area_src);
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meta_cursor_renderer_add_hw_cursor_inhibitor (cursor_renderer, inhibitor);
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area_src->hw_cursor_inhibited = TRUE;
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}
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static void
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uninhibit_hw_cursor (MetaScreenCastAreaStreamSrc *area_src)
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{
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MetaCursorRenderer *cursor_renderer;
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MetaHwCursorInhibitor *inhibitor;
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g_return_if_fail (area_src->hw_cursor_inhibited);
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cursor_renderer = get_cursor_renderer (area_src);
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inhibitor = META_HW_CURSOR_INHIBITOR (area_src);
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meta_cursor_renderer_remove_hw_cursor_inhibitor (cursor_renderer, inhibitor);
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area_src->hw_cursor_inhibited = FALSE;
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}
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static gboolean
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maybe_record_frame_on_idle (gpointer user_data)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (user_data);
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_src);
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MetaScreenCastRecordFlag flags;
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area_src->maybe_record_idle_id = 0;
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flags = META_SCREEN_CAST_RECORD_FLAG_NONE;
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meta_screen_cast_stream_src_maybe_record_frame (src, flags);
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return G_SOURCE_REMOVE;
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}
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static void
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stage_painted (MetaStage *stage,
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ClutterStageView *view,
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ClutterPaintContext *paint_context,
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gpointer user_data)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (user_data);
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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const cairo_region_t *redraw_clip;
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MetaRectangle *area;
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if (area_src->maybe_record_idle_id)
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return;
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area = meta_screen_cast_area_stream_get_area (area_stream);
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redraw_clip = clutter_paint_context_get_redraw_clip (paint_context);
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if (redraw_clip)
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{
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switch (cairo_region_contains_rectangle (redraw_clip, area))
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{
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case CAIRO_REGION_OVERLAP_IN:
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case CAIRO_REGION_OVERLAP_PART:
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break;
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case CAIRO_REGION_OVERLAP_OUT:
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return;
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}
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}
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area_src->maybe_record_idle_id = g_idle_add (maybe_record_frame_on_idle, src);
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}
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static void
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add_view_painted_watches (MetaScreenCastAreaStreamSrc *area_src,
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MetaStageWatchPhase watch_phase)
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{
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MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (area_src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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MetaBackend *backend = get_backend (area_src);
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MetaRenderer *renderer = meta_backend_get_renderer (backend);
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ClutterStage *stage;
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MetaStage *meta_stage;
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MetaRectangle *area;
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GList *l;
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stage = get_stage (area_src);
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meta_stage = META_STAGE (stage);
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area = meta_screen_cast_area_stream_get_area (area_stream);
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for (l = meta_renderer_get_views (renderer); l; l = l->next)
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{
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MetaRendererView *view = l->data;
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MetaRectangle view_layout;
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clutter_stage_view_get_layout (CLUTTER_STAGE_VIEW (view), &view_layout);
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if (meta_rectangle_overlap (area, &view_layout))
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{
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MetaStageWatch *watch;
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watch = meta_stage_watch_view (meta_stage,
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CLUTTER_STAGE_VIEW (view),
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watch_phase,
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stage_painted,
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area_src);
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area_src->watches = g_list_prepend (area_src->watches, watch);
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}
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}
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}
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static void
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meta_screen_cast_area_stream_src_enable (MetaScreenCastStreamSrc *src)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (src);
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MetaBackend *backend = get_backend (area_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 (area_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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area_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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area_src);
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area_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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area_src);
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G_GNUC_FALLTHROUGH;
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case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
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add_view_painted_watches (area_src,
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META_STAGE_WATCH_AFTER_ACTOR_PAINT);
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break;
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case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
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inhibit_hw_cursor (area_src);
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add_view_painted_watches (area_src,
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META_STAGE_WATCH_AFTER_ACTOR_PAINT);
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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_area_stream_src_disable (MetaScreenCastStreamSrc *src)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (src);
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MetaBackend *backend = get_backend (area_src);
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MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
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ClutterStage *stage;
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MetaStage *meta_stage;
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GList *l;
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stage = get_stage (area_src);
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meta_stage = META_STAGE (stage);
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for (l = area_src->watches; l; l = l->next)
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{
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MetaStageWatch *watch = l->data;
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meta_stage_remove_watch (meta_stage, watch);
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}
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g_clear_pointer (&area_src->watches, g_list_free);
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if (area_src->hw_cursor_inhibited)
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uninhibit_hw_cursor (area_src);
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g_clear_signal_handler (&area_src->cursor_moved_handler_id,
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cursor_tracker);
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g_clear_signal_handler (&area_src->cursor_changed_handler_id,
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cursor_tracker);
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g_clear_handle_id (&area_src->maybe_record_idle_id, g_source_remove);
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}
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static gboolean
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meta_screen_cast_area_stream_src_record_to_buffer (MetaScreenCastStreamSrc *src,
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uint8_t *data,
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GError **error)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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ClutterStage *stage;
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MetaRectangle *area;
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float scale;
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int stride;
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ClutterPaintFlag paint_flags = CLUTTER_PAINT_FLAG_NONE;
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stage = get_stage (area_src);
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area = meta_screen_cast_area_stream_get_area (area_stream);
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scale = meta_screen_cast_area_stream_get_scale (area_stream);
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stride = meta_screen_cast_stream_src_get_stride (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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case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
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paint_flags |= CLUTTER_PAINT_FLAG_NO_CURSORS;
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break;
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case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
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break;
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}
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if (!clutter_stage_paint_to_buffer (stage, area, scale,
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data,
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stride,
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CLUTTER_CAIRO_FORMAT_ARGB32,
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paint_flags,
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error))
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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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meta_screen_cast_area_stream_src_record_to_framebuffer (MetaScreenCastStreamSrc *src,
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CoglFramebuffer *framebuffer,
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GError **error)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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MetaBackend *backend = get_backend (area_src);
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ClutterStage *stage;
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MetaRectangle *area;
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float scale;
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ClutterPaintFlag paint_flags = CLUTTER_PAINT_FLAG_NONE;
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stage = CLUTTER_STAGE (meta_backend_get_stage (backend));
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area = meta_screen_cast_area_stream_get_area (area_stream);
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scale = meta_screen_cast_area_stream_get_scale (area_stream);
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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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case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
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paint_flags |= CLUTTER_PAINT_FLAG_NO_CURSORS;
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break;
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case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
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break;
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}
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clutter_stage_paint_to_framebuffer (stage, framebuffer,
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area, scale,
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paint_flags);
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cogl_framebuffer_finish (framebuffer);
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return TRUE;
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}
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static void
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meta_screen_cast_area_stream_record_follow_up (MetaScreenCastStreamSrc *src)
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{
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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (src);
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MetaScreenCastRecordFlag flags;
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g_clear_handle_id (&area_src->maybe_record_idle_id, g_source_remove);
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flags = META_SCREEN_CAST_RECORD_FLAG_NONE;
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meta_screen_cast_stream_src_maybe_record_frame (src, flags);
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}
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static void
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meta_screen_cast_area_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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MetaScreenCastAreaStreamSrc *area_src =
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META_SCREEN_CAST_AREA_STREAM_SRC (src);
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MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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MetaScreenCastAreaStream *area_stream = META_SCREEN_CAST_AREA_STREAM (stream);
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MetaBackend *backend = get_backend (area_src);
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MetaCursorRenderer *cursor_renderer =
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meta_backend_get_cursor_renderer (backend);
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MetaCursorSprite *cursor_sprite;
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MetaRectangle *area;
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float scale;
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graphene_point_t 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 (area_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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area = meta_screen_cast_area_stream_get_area (area_stream);
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scale = meta_screen_cast_area_stream_get_scale (area_stream);
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cursor_position = meta_cursor_renderer_get_position (cursor_renderer);
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cursor_position.x -= area->x;
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cursor_position.y -= area->y;
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cursor_position.x *= scale;
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cursor_position.y *= 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 (area_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 metadata_scale;
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cursor_scale = meta_cursor_sprite_get_texture_scale (cursor_sprite);
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metadata_scale = 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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metadata_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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area_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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|
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static gboolean
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meta_screen_cast_area_stream_src_is_cursor_sprite_inhibited (MetaHwCursorInhibitor *inhibitor,
|
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MetaCursorSprite *cursor_sprite)
|
|
{
|
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MetaScreenCastAreaStreamSrc *area_src =
|
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META_SCREEN_CAST_AREA_STREAM_SRC (inhibitor);
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|
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return is_cursor_in_stream (area_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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iface->is_cursor_sprite_inhibited =
|
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meta_screen_cast_area_stream_src_is_cursor_sprite_inhibited;
|
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}
|
|
|
|
MetaScreenCastAreaStreamSrc *
|
|
meta_screen_cast_area_stream_src_new (MetaScreenCastAreaStream *area_stream,
|
|
GError **error)
|
|
{
|
|
return g_initable_new (META_TYPE_SCREEN_CAST_AREA_STREAM_SRC, NULL, error,
|
|
"stream", area_stream,
|
|
NULL);
|
|
}
|
|
|
|
static void
|
|
meta_screen_cast_area_stream_src_init (MetaScreenCastAreaStreamSrc *area_src)
|
|
{
|
|
area_src->cursor_bitmap_invalid = TRUE;
|
|
}
|
|
|
|
static void
|
|
meta_screen_cast_area_stream_src_class_init (MetaScreenCastAreaStreamSrcClass *klass)
|
|
{
|
|
MetaScreenCastStreamSrcClass *src_class =
|
|
META_SCREEN_CAST_STREAM_SRC_CLASS (klass);
|
|
|
|
src_class->get_specs = meta_screen_cast_area_stream_src_get_specs;
|
|
src_class->enable = meta_screen_cast_area_stream_src_enable;
|
|
src_class->disable = meta_screen_cast_area_stream_src_disable;
|
|
src_class->record_to_buffer =
|
|
meta_screen_cast_area_stream_src_record_to_buffer;
|
|
src_class->record_to_framebuffer =
|
|
meta_screen_cast_area_stream_src_record_to_framebuffer;
|
|
src_class->record_follow_up =
|
|
meta_screen_cast_area_stream_record_follow_up;
|
|
src_class->set_cursor_metadata =
|
|
meta_screen_cast_area_stream_src_set_cursor_metadata;
|
|
}
|