jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <AK/Types.h>
10#include <Kernel/Graphics/Console/Console.h>
11#include <Kernel/PhysicalAddress.h>
12
13namespace Kernel::Graphics {
14
15class GenericFramebufferConsoleImpl : public Console {
16public:
17 virtual size_t bytes_per_base_glyph() const override;
18 virtual size_t chars_per_line() const override;
19
20 virtual size_t max_column() const override { return m_width / (m_glyph_columns + m_glyph_spacing); }
21 virtual size_t max_row() const override { return m_height / m_glyph_rows; }
22
23 virtual bool is_hardware_paged_capable() const override { return false; }
24 virtual bool has_hardware_cursor() const override { return false; }
25
26 virtual void set_cursor(size_t x, size_t y) override;
27
28 virtual void clear(size_t x, size_t y, size_t length) override;
29 virtual void write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical = false) override;
30 virtual void write(size_t x, size_t y, char ch, bool critical = false) override;
31 virtual void write(char ch, bool critical = false) override;
32
33 virtual void enable() override;
34 virtual void disable() override;
35
36 virtual void set_resolution(size_t width, size_t height, size_t pitch) = 0;
37
38protected:
39 virtual void hide_cursor() override;
40 virtual void show_cursor() override;
41
42 GenericFramebufferConsoleImpl(size_t width, size_t height, size_t pitch)
43 : Console(width, height)
44 , m_pitch(pitch)
45 {
46 m_cursor_overriden_pixels.fill(0);
47 }
48 virtual u8* framebuffer_data() = 0;
49 size_t framebuffer_pitch() const { return m_pitch; }
50 virtual void clear_glyph(size_t x, size_t y);
51
52 union FramebufferOffset {
53 u8* bytes;
54 u32* pixels;
55 };
56 FramebufferOffset framebuffer_offset(size_t x, size_t y);
57 void flush_glyph(size_t x, size_t y);
58
59 size_t const m_glyph_spacing { 1 };
60 size_t const m_glyph_columns { 8 };
61 size_t const m_glyph_rows { 16 };
62
63 Array<u32, 8> m_cursor_overriden_pixels;
64
65 size_t m_pitch;
66};
67
68class GenericFramebufferConsole : public GenericFramebufferConsoleImpl {
69public:
70 virtual void clear(size_t x, size_t y, size_t length) override;
71 virtual void write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical = false) override;
72
73 virtual void enable() override;
74 virtual void disable() override;
75
76protected:
77 GenericFramebufferConsole(size_t width, size_t height, size_t pitch)
78 : GenericFramebufferConsoleImpl(width, height, pitch)
79 {
80 }
81
82 virtual void clear_glyph(size_t x, size_t y) override;
83
84 mutable Spinlock<LockRank::None> m_lock {};
85};
86
87}