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
|
/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefCounted.h>
#include <AK/Types.h>
#include <Kernel/Graphics/Console/VGAConsole.h>
#include <Kernel/Locking/Spinlock.h>
namespace Kernel::Graphics {
class TextModeConsole final : public VGAConsole {
public:
static NonnullRefPtr<TextModeConsole> initialize(const VGACompatibleAdapter& adapter);
virtual size_t chars_per_line() const override { return width(); };
virtual bool has_hardware_cursor() const override { return true; }
virtual bool is_hardware_paged_capable() const override { return true; }
virtual size_t bytes_per_base_glyph() const override { return 2; }
virtual void set_cursor(size_t x, size_t y) override;
virtual void hide_cursor() override;
virtual void show_cursor() override;
virtual void clear(size_t x, size_t y, size_t length) override;
virtual void write(size_t x, size_t y, char ch, bool critical = false) override;
virtual void write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical = false) override;
virtual void write(char ch, bool critical = false) override;
virtual void flush(size_t, size_t, size_t, size_t) override { }
virtual void enable() override { }
virtual void disable() override { VERIFY_NOT_REACHED(); }
private:
void clear_vga_row(u16 row);
void set_vga_start_row(u16 row);
explicit TextModeConsole(const VGACompatibleAdapter&);
mutable Spinlock<u8> m_vga_lock;
u16 m_vga_start_row { 0 };
u16 m_current_vga_start_address { 0 };
u8* m_current_vga_window { nullptr };
u16 m_cursor_x { 0 };
u16 m_cursor_y { 0 };
};
}
|
