1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
#pragma once
#include "Console.h"
#include <Kernel/Devices/KeyboardDevice.h>
#include <Kernel/TTY/TTY.h>
class VirtualConsole final : public TTY
, public KeyboardClient
, public ConsoleImplementation {
AK_MAKE_ETERNAL
public:
enum InitialContents {
Cleared,
AdoptCurrentVGABuffer
};
VirtualConsole(unsigned index, InitialContents = Cleared);
virtual ~VirtualConsole() override;
static void switch_to(unsigned);
static void initialize();
bool is_graphical() { return m_graphical; }
void set_graphical(bool graphical) { m_graphical = graphical; }
private:
// ^KeyboardClient
virtual void on_key_pressed(KeyboardDevice::Event) override;
// ^ConsoleImplementation
virtual void on_sysconsole_receive(u8) override;
// ^TTY
virtual ssize_t on_tty_write(const u8*, ssize_t) override;
virtual StringView tty_name() const override;
virtual void echo(u8) override;
// ^CharacterDevice
virtual const char* class_name() const override { return "VirtualConsole"; }
void set_active(bool);
void on_char(u8);
void get_vga_cursor(u8& row, u8& column);
void flush_vga_cursor();
u8* m_buffer;
unsigned m_index;
bool m_active { false };
bool m_graphical { false };
void scroll_up();
void set_cursor(unsigned row, unsigned column);
void put_character_at(unsigned row, unsigned column, u8 ch);
void escape$A(const Vector<unsigned>&);
void escape$D(const Vector<unsigned>&);
void escape$H(const Vector<unsigned>&);
void escape$J(const Vector<unsigned>&);
void escape$m(const Vector<unsigned>&);
void escape$s(const Vector<unsigned>&);
void escape$u(const Vector<unsigned>&);
void clear();
u8 m_cursor_row { 0 };
u8 m_cursor_column { 0 };
u8 m_saved_cursor_row { 0 };
u8 m_saved_cursor_column { 0 };
u8 m_current_attribute { 0x07 };
void clear_vga_row(u16 row);
void set_vga_start_row(u16 row);
u16 m_vga_start_row { 0 };
u16 m_current_vga_start_address { 0 };
u8* m_current_vga_window { nullptr };
void execute_escape_sequence(u8 final);
enum EscapeState {
Normal,
ExpectBracket,
ExpectParameter,
ExpectIntermediate,
ExpectFinal,
};
EscapeState m_escape_state { Normal };
Vector<u8> m_parameters;
Vector<u8> m_intermediates;
u8* m_horizontal_tabs { nullptr };
char m_tty_name[32];
};
|
