97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
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/*
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Copyright 2019 flyinghead
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This file is part of reicast.
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reicast is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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reicast is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with reicast. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "types.h"
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#include "mapping.h"
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template <typename Keycode>
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class KeyboardDevice
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{
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public:
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virtual const char* name() = 0;
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int maple_port() { return _maple_port; }
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virtual void keyboard_input(Keycode keycode, bool pressed, int modifier_keys = 0);
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virtual ~KeyboardDevice() {}
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protected:
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KeyboardDevice(int maple_port) : _maple_port(maple_port), _kb_used(0), _modifier_keys(0) {}
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virtual u8 convert_keycode(Keycode keycode) = 0;
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private:
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int _maple_port;
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int _modifier_keys;
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int _kb_used;
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};
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extern u8 kb_key[6]; // normal keys pressed
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extern u8 kb_shift; // shift keys pressed (bitmask)
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template <typename Keycode>
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void KeyboardDevice<Keycode>::keyboard_input(Keycode keycode, bool pressed, int modifier_keys)
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{
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u8 dc_keycode = convert_keycode(keycode);
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if (dc_keycode == 0xE1 || dc_keycode == 0xE5) // SHIFT
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{
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if (pressed)
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_modifier_keys |= 0x02 | 0x20;
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else
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_modifier_keys &= ~(0x02 | 0x20);
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}
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else if (dc_keycode == 0xE0 || dc_keycode == 0xE4) // CTRL
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{
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if (pressed)
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_modifier_keys |= 0x01 | 0x10;
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else
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_modifier_keys &= ~(0x01 | 0x10);
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}
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else if (dc_keycode != 0)
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{
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if (pressed)
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{
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if (_kb_used < ARRAY_SIZE(kb_key))
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{
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bool found = false;
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for (int i = 0; !found && i < _kb_used; i++)
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{
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if (kb_key[i] == dc_keycode)
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found = true;
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}
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if (!found)
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kb_key[_kb_used++] = dc_keycode;
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}
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}
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else
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{
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for (int i = 0; i < _kb_used; i++)
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{
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if (kb_key[i] == dc_keycode)
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{
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_kb_used--;
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for (int j = i; j < ARRAY_SIZE(kb_key) - 1; j++)
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kb_key[j] = kb_key[j + 1];
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kb_key[ARRAY_SIZE(kb_key) - 1] = 0;
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break;
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}
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}
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}
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kb_shift = modifier_keys | _modifier_keys;
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}
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}
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