90 lines
1.9 KiB
C++
90 lines
1.9 KiB
C++
#pragma once
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#include <BAN/Array.h>
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#include <kernel/Device/Device.h>
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#include <kernel/Terminal/TerminalDriver.h>
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#include <kernel/Terminal/TTY.h>
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#include <kernel/ThreadBlocker.h>
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namespace Kernel
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{
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class VirtualTTY : public TTY
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{
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public:
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static BAN::ErrorOr<BAN::RefPtr<VirtualTTY>> create(TerminalDriver*);
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virtual void set_font(const LibFont::Font&) override;
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virtual uint32_t height() const override { return m_height; }
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virtual uint32_t width() const override { return m_width; }
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virtual void clear() override;
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protected:
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virtual BAN::StringView name() const override { return m_name; }
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virtual void putchar_impl(uint8_t ch) override;
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private:
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VirtualTTY(TerminalDriver*);
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void reset_ansi();
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void handle_ansi_csi(uint8_t ch);
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void handle_ansi_csi_color();
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void putchar_at(uint32_t codepoint, uint32_t x, uint32_t y);
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void render_from_buffer(uint32_t x, uint32_t y);
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void set_cursor_position(uint32_t x, uint32_t y);
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private:
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enum class State
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{
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Normal,
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WaitingAnsiEscape,
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WaitingAnsiCSI,
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WaitingUTF8,
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};
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struct AnsiState
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{
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int32_t nums[2] { -1, -1 };
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int32_t index { 0 };
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bool question { false };
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};
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struct UTF8State
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{
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uint32_t codepoint { 0 };
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uint8_t bytes_missing { 0 };
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};
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struct Cell
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{
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TerminalDriver::Color foreground { TerminalColor::BRIGHT_WHITE };
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TerminalDriver::Color background { TerminalColor::BLACK };
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uint32_t codepoint { ' ' };
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};
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private:
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BAN::String m_name;
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State m_state { State::Normal };
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AnsiState m_ansi_state { };
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UTF8State m_utf8_state { };
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uint32_t m_width { 0 };
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uint32_t m_height { 0 };
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uint32_t m_last_graphic_char { 0 };
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uint32_t m_saved_row { 0 };
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uint32_t m_saved_column { 0 };
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uint32_t m_row { 0 };
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uint32_t m_column { 0 };
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Cell* m_buffer { nullptr };
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bool m_show_cursor { true };
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TerminalDriver* m_terminal_driver { nullptr };
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};
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}
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