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https://github.com/RGBCube/serenity
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5326eebb1b
The original implementation only sent out notifications when there was something being drawn on screen. If nothing was going on, we'd get too lazy and just not notify display links. This obviously break requestAnimationFrame(), so now we just drive the DisplayLinks at 60 fps no matter what. :^)
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/OwnPtr.h>
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#include <AK/RefPtr.h>
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#include <LibCore/Object.h>
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#include <LibGfx/DisjointRectSet.h>
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#include <LibGfx/Forward.h>
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namespace WindowServer {
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class ClientConnection;
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class Cursor;
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enum class WallpaperMode {
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Simple,
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Tile,
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Center,
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Scaled,
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Unchecked
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};
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class Compositor final : public Core::Object {
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C_OBJECT(Compositor)
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public:
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static Compositor& the();
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void compose();
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void invalidate();
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void invalidate(const Gfx::Rect&);
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bool set_resolution(int desired_width, int desired_height);
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bool set_backgound_color(const String& background_color);
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bool set_wallpaper_mode(const String& mode);
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bool set_wallpaper(const String& path, Function<void(bool)>&& callback);
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String wallpaper_path() const { return m_wallpaper_path; }
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void invalidate_cursor();
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Gfx::Rect current_cursor_rect() const;
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void increment_display_link_count(Badge<ClientConnection>);
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void decrement_display_link_count(Badge<ClientConnection>);
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private:
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Compositor();
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void init_bitmaps();
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void flip_buffers();
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void flush(const Gfx::Rect&);
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void draw_cursor();
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void draw_geometry_label();
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void draw_menubar();
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void run_animations();
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void notify_display_links();
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RefPtr<Core::Timer> m_compose_timer;
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RefPtr<Core::Timer> m_immediate_compose_timer;
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bool m_flash_flush { false };
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bool m_buffers_are_flipped { false };
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bool m_screen_can_set_buffer { false };
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RefPtr<Gfx::Bitmap> m_front_bitmap;
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RefPtr<Gfx::Bitmap> m_back_bitmap;
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OwnPtr<Gfx::Painter> m_back_painter;
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OwnPtr<Gfx::Painter> m_front_painter;
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Gfx::DisjointRectSet m_dirty_rects;
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Gfx::Rect m_last_cursor_rect;
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Gfx::Rect m_last_dnd_rect;
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Gfx::Rect m_last_geometry_label_rect;
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String m_wallpaper_path;
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WallpaperMode m_wallpaper_mode { WallpaperMode::Unchecked };
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RefPtr<Gfx::Bitmap> m_wallpaper;
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RefPtr<Core::Timer> m_display_link_notify_timer;
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size_t m_display_link_count { 0 };
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};
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}
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