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https://github.com/RGBCube/serenity
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20743e8aed
As we removed the support of VBE modesetting that was done by GRUB early on boot, we need to determine if we can modeset the resolution with our drivers, and if not, we should enable text mode and ensure that SystemServer knows about it too. Also, SystemServer should first check if there's a framebuffer device node, which is an indication that text mode was not even if it was requested. Then, if it doesn't find it, it should check what boot_mode argument the user specified (in case it's self-test). This way if we try to use bochs-display device (which is not VGA compatible) and request a text mode, it will not honor the request and will continue with graphical mode. Also try to print critical messages with mininum memory allocations possible. In LibVT, We make the implementation flexible for kernel-specific methods that are implemented in ConsoleImpl class.
145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Noncopyable.h>
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#include <AK/NonnullOwnPtrVector.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <Kernel/API/KeyCode.h>
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#include <Kernel/ConsoleDevice.h>
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#include <Kernel/Devices/HID/HIDManagement.h>
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#include <Kernel/Graphics/Console/Console.h>
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#include <Kernel/TTY/TTY.h>
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#include <LibVT/Attribute.h>
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#include <LibVT/Position.h>
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#include <LibVT/Terminal.h>
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namespace Kernel {
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class ConsoleManagement;
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class VirtualConsole;
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// FIXME: This implementation has no knowledge about keeping terminal history...
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class ConsoleImpl final : public VT::Terminal {
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public:
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explicit ConsoleImpl(VirtualConsole&);
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virtual void set_size(u16 columns, u16 rows) override;
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private:
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virtual void invalidate_cursor() override;
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virtual void clear() override;
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virtual void clear_including_history() override;
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virtual void scroll_up() override;
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virtual void scroll_down() override;
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virtual void newline() override;
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virtual void put_character_at(unsigned row, unsigned column, u32 ch) override;
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virtual void set_window_title(const String&) override;
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virtual void ICH(Parameters) override;
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virtual void IL(Parameters) override;
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virtual void DCH(Parameters) override;
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virtual void DL(Parameters) override;
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};
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class VirtualConsole final : public TTY
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, public KeyboardClient
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, public VT::TerminalClient {
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AK_MAKE_ETERNAL
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friend class ConsoleManagement;
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friend class ConsoleImpl;
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friend class VT::Terminal;
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public:
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struct Line {
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bool dirty;
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};
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struct Cell {
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void clear()
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{
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ch = ' ';
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attribute.reset();
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}
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char ch;
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VT::Attribute attribute;
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};
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public:
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static NonnullRefPtr<VirtualConsole> create(size_t index);
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virtual ~VirtualConsole() override;
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size_t index() const { return m_index; }
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bool is_graphical() { return m_graphical; }
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void set_graphical(bool graphical);
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void emit_char(char);
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private:
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VirtualConsole(const unsigned index);
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// ^KeyboardClient
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virtual void on_key_pressed(KeyEvent) override;
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// ^TTY
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virtual ssize_t on_tty_write(const UserOrKernelBuffer&, ssize_t) override;
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virtual String const& tty_name() const override { return m_tty_name; }
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virtual void echo(u8) override;
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// ^TerminalClient
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virtual void beep() override;
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virtual void set_window_title(const StringView&) override;
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virtual void set_window_progress(int, int) override;
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virtual void terminal_did_resize(u16 columns, u16 rows) override;
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virtual void terminal_history_changed() override;
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virtual void emit(const u8*, size_t) override;
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// ^CharacterDevice
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virtual const char* class_name() const override { return "VirtualConsole"; }
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// ^Device
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virtual String device_name() const override;
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void set_active(bool);
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void flush_dirty_lines();
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unsigned m_index;
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bool m_active { false };
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bool m_graphical { false };
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String m_tty_name;
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RecursiveSpinLock m_lock;
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private:
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void invalidate_cursor(size_t row);
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void clear();
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void inject_string(const StringView&);
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Cell& cell_at(size_t column, size_t row);
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typedef Vector<unsigned, 4> ParamVector;
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void on_code_point(u32);
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void scroll_down();
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void scroll_up();
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void newline();
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void clear_line(size_t index);
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void put_character_at(unsigned row, unsigned column, u32 ch, const VT::Attribute&);
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OwnPtr<Region> m_cells;
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Vector<VirtualConsole::Line> m_lines;
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ConsoleImpl m_console_impl;
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};
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}
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