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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <LibCore/Object.h>
#include <LibGfx/Color.h>
#include <LibGfx/DisjointRectSet.h>
#include <WindowServer/Screen.h>
namespace WindowServer {
class ClientConnection;
class Cursor;
class Window;
class WindowManager;
enum class WallpaperMode {
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&);
void screen_resolution_changed();
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;
const Cursor* current_cursor() const { return m_current_cursor; }
void current_cursor_was_reloaded(const Cursor* new_cursor) { m_current_cursor = new_cursor; }
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>);
const Gfx::Bitmap* cursor_bitmap_for_screenshot(Badge<ClientConnection>, Screen&) const;
const Gfx::Bitmap& front_bitmap_for_screenshot(Badge<ClientConnection>, Screen&) const;
private:
Compositor();
void init_bitmaps();
bool render_animation_frame(Screen&, Gfx::DisjointRectSet&);
void step_animations();
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_geometry_label(Screen&);
void flush(Screen&);
RefPtr<Core::Timer> m_compose_timer;
RefPtr<Core::Timer> m_immediate_compose_timer;
bool m_flash_flush { false };
bool m_occlusions_dirty { true };
bool m_invalidated_any { true };
bool m_invalidated_window { false };
bool m_invalidated_cursor { false };
struct ScreenData {
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;
RefPtr<Gfx::Bitmap> m_cursor_back_bitmap;
OwnPtr<Gfx::Painter> m_cursor_back_painter;
Gfx::IntRect m_last_cursor_rect;
bool m_buffers_are_flipped { false };
bool m_screen_can_set_buffer { false };
bool m_cursor_back_is_valid { false };
Gfx::DisjointRectSet m_flush_rects;
Gfx::DisjointRectSet m_flush_transparent_rects;
Gfx::DisjointRectSet m_flush_special_rects;
void init_bitmaps(Screen&);
void flip_buffers(Screen&);
void draw_cursor(Screen&, const Gfx::IntRect&);
bool restore_cursor_back(Screen&, Gfx::IntRect&);
};
friend class ScreenData;
Vector<ScreenData, default_screen_count> m_screen_data;
Gfx::DisjointRectSet m_dirty_screen_rects;
Gfx::DisjointRectSet m_opaque_wallpaper_rects;
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 };
Screen* m_current_cursor_screen { 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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