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130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
//
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// IntelligentKeyboard.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 02/11/2019.
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// Copyright © 2019 Thomas Harte. All rights reserved.
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//
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#ifndef IntelligentKeyboard_hpp
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#define IntelligentKeyboard_hpp
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#include "../../ClockReceiver/ClockingHintSource.hpp"
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#include "../../Components/SerialPort/SerialPort.hpp"
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#include "../KeyboardMachine.hpp"
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#include "../../Inputs/Mouse.hpp"
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#include <atomic>
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#include <mutex>
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namespace Atari {
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namespace ST {
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enum class Key: uint16_t {
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Escape = 1,
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k1, k2, k3, k4, k5, k6, k7, k8, k9, k0, Hyphen, Equals, Backspace,
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Tab, Q, W, E, R, T, Y, U, I, O, P, OpenSquareBracket, CloseSquareBracket, Return,
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Control, A, S, D, F, G, H, J, K, L, Semicolon, Quote, BackTick,
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LeftShift, Backslash, Z, X, C, V, B, N, M, Comma, FullStop, ForwardSlash, RightShift,
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/* 0x37 is unused. */
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Alt = 0x38, Space, CapsLock, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10,
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/* Various gaps follow. */
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Home = 0x47, Up,
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KeypadMinus = 0x4a, Left,
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Right = 0x4d, KeypadPlus,
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Down = 0x50,
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Insert = 0x52, Delete,
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ISO = 0x60, Undo, Help, KeypadOpenBracket, KeypadCloseBracket, KeypadDivide, KeypadMultiply,
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Keypad7, Keypad8, Keypad9, Keypad4, KeyPad5, Keypad6, Keypad1, Keypad2, Keypad3, Keypad0, KeypadDecimalPoint,
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KeypadEnter
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};
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static_assert(uint16_t(Key::RightShift) == 0x36, "RightShift should have key code 0x36; check intermediate entries");
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static_assert(uint16_t(Key::F10) == 0x44, "F10 should have key code 0x44; check intermediate entries");
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static_assert(uint16_t(Key::KeypadEnter) == 0x72, "KeypadEnter should have key code 0x72; check intermediate entries");
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/*!
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A receiver for the Atari ST's "intelligent keyboard" commands, which actually cover
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keyboard input and output and mouse handling.
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*/
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class IntelligentKeyboard:
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public Serial::Line::ReadDelegate,
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public ClockingHint::Source,
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public Inputs::Mouse {
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public:
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IntelligentKeyboard(Serial::Line &input, Serial::Line &output);
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ClockingHint::Preference preferred_clocking() final;
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void run_for(HalfCycles duration);
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void set_key_state(Key key, bool is_pressed);
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class KeyboardMapper: public KeyboardMachine::MappedMachine::KeyboardMapper {
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uint16_t mapped_key_for_key(Inputs::Keyboard::Key key) final;
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};
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private:
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// MARK: - Key queue.
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std::mutex key_queue_mutex_;
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std::vector<uint8_t> key_queue_;
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// MARK: - Serial line state.
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int bit_count_ = 0;
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int command_ = 0;
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Serial::Line &output_line_;
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void output_bytes(std::initializer_list<uint8_t> value);
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bool serial_line_did_produce_bit(Serial::Line *, int bit) final;
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// MARK: - Command dispatch.
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std::vector<uint8_t> command_sequence_;
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void dispatch_command(uint8_t command);
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// MARK: - Flow control.
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void reset();
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void resume();
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void pause();
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// MARK: - Mouse.
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void disable_mouse();
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void set_relative_mouse_position_reporting();
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void set_absolute_mouse_position_reporting(uint16_t max_x, uint16_t max_y);
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void set_mouse_position(uint16_t x, uint16_t y);
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void set_mouse_keycode_reporting(uint8_t delta_x, uint8_t delta_y);
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void set_mouse_threshold(uint8_t x, uint8_t y);
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void set_mouse_scale(uint8_t x, uint8_t y);
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void set_mouse_y_downward();
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void set_mouse_y_upward();
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void set_mouse_button_actions(uint8_t actions);
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void interrogate_mouse_position();
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// Inputs::Mouse.
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void move(int x, int y) final;
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int get_number_of_buttons() final;
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void set_button_pressed(int index, bool is_pressed) final;
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void reset_all_buttons() final;
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enum class MouseMode {
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Relative, Absolute
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} mouse_mode_ = MouseMode::Relative;
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// Absolute positioning state.
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int mouse_range_[2] = {0, 0};
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int mouse_scale_[2] = {0, 0};
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// Relative positioning state.
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int posted_button_state_ = 0;
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int mouse_threshold_[2] = {1, 1};
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void post_relative_mouse_event(int x, int y);
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// Received mouse state.
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std::atomic<int> mouse_movement_[2];
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std::atomic<int> mouse_button_state_;
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// MARK: - Joystick.
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void disable_joysticks();
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};
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}
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}
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#endif /* IntelligentKeyboard_hpp */
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