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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <LibCore/Object.h>
#include <LibGfx/Color.h>
#include <LibGfx/DisjointRectSet.h>
namespace WindowServer {
class ClientConnection;
class Cursor;
class Window;
class WindowManager;
enum class WallpaperMode {
Simple,
Tile,
Center,
Stretch,
Unchecked
};
class Compositor final : public Core::Object {
C_OBJECT(Compositor)
public:
static Compositor& the();
void compose();
void invalidate_window();
void invalidate_screen();
void invalidate_screen(const Gfx::IntRect&);
bool set_resolution(int desired_width, int desired_height, int scale_factor);
bool set_background_color(const String& background_color);
bool set_wallpaper_mode(const String& mode);
bool set_wallpaper(const String& path, Function<void(bool)>&& callback);
String wallpaper_path() const { return m_wallpaper_path; }
void invalidate_cursor(bool = false);
Gfx::IntRect current_cursor_rect() const;
void increment_display_link_count(Badge<ClientConnection>);
void decrement_display_link_count(Badge<ClientConnection>);
void invalidate_occlusions() { m_occlusions_dirty = true; }
void did_construct_window_manager(Badge<WindowManager>);
private:
Compositor();
void init_bitmaps();
void flip_buffers();
void flush(const Gfx::IntRect&);
void draw_menubar();
void run_animations(Gfx::DisjointRectSet&);
void notify_display_links();
void start_compose_async_timer();
void recompute_occlusions();
bool any_opaque_window_above_this_one_contains_rect(const Window&, const Gfx::IntRect&);
void change_cursor(const Cursor*);
void draw_cursor(const Gfx::IntRect&);
void restore_cursor_back();
bool draw_geometry_label(Gfx::IntRect&);
RefPtr<Core::Timer> m_compose_timer;
RefPtr<Core::Timer> m_immediate_compose_timer;
bool m_flash_flush { false };
bool m_buffers_are_flipped { false };
bool m_screen_can_set_buffer { false };
bool m_occlusions_dirty { true };
bool m_invalidated_any { true };
bool m_invalidated_window { false };
bool m_invalidated_cursor { false };
RefPtr<Gfx::Bitmap> m_front_bitmap;
RefPtr<Gfx::Bitmap> m_back_bitmap;
RefPtr<Gfx::Bitmap> m_temp_bitmap;
OwnPtr<Gfx::Painter> m_back_painter;
OwnPtr<Gfx::Painter> m_front_painter;
OwnPtr<Gfx::Painter> m_temp_painter;
Gfx::DisjointRectSet m_dirty_screen_rects;
Gfx::DisjointRectSet m_opaque_wallpaper_rects;
RefPtr<Gfx::Bitmap> m_cursor_back_bitmap;
OwnPtr<Gfx::Painter> m_cursor_back_painter;
Gfx::IntRect m_last_cursor_rect;
Gfx::IntRect m_last_dnd_rect;
Gfx::IntRect m_last_geometry_label_damage_rect;
String m_wallpaper_path { "" };
WallpaperMode m_wallpaper_mode { WallpaperMode::Unchecked };
RefPtr<Gfx::Bitmap> m_wallpaper;
const Cursor* m_current_cursor { nullptr };
unsigned m_current_cursor_frame { 0 };
RefPtr<Core::Timer> m_cursor_timer;
RefPtr<Core::Timer> m_display_link_notify_timer;
size_t m_display_link_count { 0 };
Optional<Gfx::Color> m_custom_background_color;
};
}
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