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serenity/Kernel/Graphics/GraphicsManagement.h
Andreas Kling 11eee67b85 Kernel: Make self-contained locking smart pointers their own classes
Until now, our kernel has reimplemented a number of AK classes to
provide automatic internal locking:

- RefPtr
- NonnullRefPtr
- WeakPtr
- Weakable

This patch renames the Kernel classes so that they can coexist with
the original AK classes:

- RefPtr => LockRefPtr
- NonnullRefPtr => NonnullLockRefPtr
- WeakPtr => LockWeakPtr
- Weakable => LockWeakable

The goal here is to eventually get rid of the Lock* classes in favor of
using external locking.
2022-08-20 17:20:43 +02:00

67 lines
2.1 KiB
C++

/*
* Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullOwnPtr.h>
#include <AK/Types.h>
#include <Kernel/Bus/PCI/Definitions.h>
#include <Kernel/Graphics/Console/Console.h>
#include <Kernel/Graphics/DisplayConnector.h>
#include <Kernel/Graphics/Generic/DisplayConnector.h>
#include <Kernel/Graphics/GenericGraphicsAdapter.h>
#include <Kernel/Graphics/VirtIOGPU/GraphicsAdapter.h>
#include <Kernel/Library/NonnullLockRefPtr.h>
#include <Kernel/Library/NonnullLockRefPtrVector.h>
#include <Kernel/Memory/Region.h>
namespace Kernel {
class GraphicsManagement {
public:
static GraphicsManagement& the();
static bool is_initialized();
bool initialize();
unsigned allocate_minor_device_number() { return m_current_minor_number++; };
GraphicsManagement();
void attach_new_display_connector(Badge<DisplayConnector>, DisplayConnector&);
void detach_display_connector(Badge<DisplayConnector>, DisplayConnector&);
void set_vga_text_mode_cursor(size_t console_width, size_t x, size_t y);
void disable_vga_text_mode_console_cursor();
void disable_vga_emulation_access_permanently();
LockRefPtr<Graphics::Console> console() const { return m_console; }
void set_console(Graphics::Console&);
void deactivate_graphical_mode();
void activate_graphical_mode();
private:
void enable_vga_text_mode_console_cursor();
bool determine_and_initialize_graphics_device(PCI::DeviceIdentifier const&);
void initialize_preset_resolution_generic_display_connector();
NonnullLockRefPtrVector<GenericGraphicsAdapter> m_graphics_devices;
LockRefPtr<Graphics::Console> m_console;
// Note: This is only used when booting with kernel commandline that includes "graphics_subsystem_mode=limited"
LockRefPtr<GenericDisplayConnector> m_preset_resolution_generic_display_connector;
unsigned m_current_minor_number { 0 };
SpinlockProtected<IntrusiveList<&DisplayConnector::m_list_node>> m_display_connector_nodes { LockRank::None };
RecursiveSpinlock m_main_vga_lock { LockRank::None };
bool m_vga_access_is_disabled { false };
};
}