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◆ main openmsx / src / input / Keyboard.cc
83.0 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
e8555c89 Andy McCall 1 
#include "Keyboard.hh"
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#include "CommandController.hh"
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#include "CommandException.hh"
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#include "DeviceConfig.hh"
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#include "Event.hh"
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#include "EventDistributor.hh"
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#include "InputEventFactory.hh"
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#include "MSXEventDistributor.hh"
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#include "MSXMotherBoard.hh"
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#include "ReverseManager.hh"
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#include "SDLKey.hh"
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#include "StateChange.hh"
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#include "StateChangeDistributor.hh"
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#include "TclArgParser.hh"
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#include "TclObject.hh"
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#include "UnicodeKeymap.hh"
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#include "serialize.hh"
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#include "serialize_meta.hh"
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#include "serialize_stl.hh"
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#include "enumerate.hh"
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#include "one_of.hh"
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#include "outer.hh"
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#include "ranges.hh"
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#include "stl.hh"
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#include "unreachable.hh"
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#include "utf8_checked.hh"
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#include "utf8_unchecked.hh"
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#include "xrange.hh"
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#include <SDL.h>
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#include <algorithm>
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#include <array>
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#include <cassert>
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#include <cstdarg>
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#include <cstdint>
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#include <cstdio>
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#include <functional>
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#include <ranges>
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#include <type_traits>
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#if defined(_WIN32)
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#ifdef _MSC_VER
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#pragma comment(lib, "imm32")
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#endif
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#include "SDL_syswm.h"
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#endif // _WIN32
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namespace openmsx {
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// How does the CAPSLOCK key behave?
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#ifdef __APPLE__
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// See the comments in this issue:
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//    https://github.com/openMSX/openMSX/issues/1261
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// Basically it means on apple:
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//   when the host capslock key is pressed,       SDL sends capslock-pressed
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//   when the host capslock key is released,      SDL sends nothing
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//   when the host capslock key is pressed again, SDL sends capslock-released
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//   when the host capslock key is released,      SDL sends nothing
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static constexpr bool SANE_CAPSLOCK_BEHAVIOR = false;
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#else
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// We get sane capslock events from SDL:
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//  when the host capslock key is pressed,  SDL sends capslock-pressed
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//  when the host capslock key is released, SDL sends capslock-released
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static constexpr bool SANE_CAPSLOCK_BEHAVIOR = true;
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#endif
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static constexpr uint8_t TRY_AGAIN = 0x80; // see pressAscii()
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using KeyInfo = UnicodeKeymap::KeyInfo;
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static constexpr array_with_enum_index<Keyboard::Matrix, std::string_view> defaultKeymapForMatrix = {
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	"int", // Matrix::MSX
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	"svi", // Matrix::SVI
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	"cvjoy", // Matrix::CVJOY
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	"sega_int", // Matrix::SEGA
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};
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using ModifierArray = array_with_enum_index<UnicodeKeymap::KeyInfo::Modifier, KeyMatrixPosition>;
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static constexpr array_with_enum_index<Keyboard::Matrix, ModifierArray> modifierPosForMatrix = {
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	ModifierArray{ // Matrix::MSX
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		KeyMatrixPosition(6, 0), // SHIFT
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		KeyMatrixPosition(6, 1), // CTRL
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		KeyMatrixPosition(6, 2), // GRAPH
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		KeyMatrixPosition(6, 3), // CAPS
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		KeyMatrixPosition(6, 4), // CODE
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	},
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	ModifierArray{ // Matrix::SVI
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		KeyMatrixPosition(6, 0), // SHIFT
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		KeyMatrixPosition(6, 1), // CTRL
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		KeyMatrixPosition(6, 2), // LGRAPH
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		KeyMatrixPosition(8, 3), // CAPS
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		KeyMatrixPosition(6, 3), // RGRAPH
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	},
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	ModifierArray{ // Matrix::CVJOY
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	},
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	ModifierArray{ // Matrix::SEGA
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		KeyMatrixPosition(13, 3), // SHIFT
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		KeyMatrixPosition(13, 2), // CTRL
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		KeyMatrixPosition(13, 1), // GRAPH
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		KeyMatrixPosition(),      // CAPS
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		KeyMatrixPosition( 0, 4), // ENG/DIER'S
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	},
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};
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/** Keyboard bindings ****************************************/
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struct MsxKeyScanMapping {
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	KeyMatrixPosition msx;
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	std::array<SDL_Keycode, 3> hostKeyCodes;
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	std::array<SDL_Scancode, 3> hostScanCodes;
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};
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template<typename Proj>
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static constexpr size_t count(std::span<const MsxKeyScanMapping> mapping, Proj proj)
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{
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	using Array = std::remove_cvref_t<decltype(std::invoke(proj, mapping[0]))>;
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	using Code = typename Array::value_type;
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	size_t result = 0;
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	for (const auto& m : mapping) {
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		for (const auto& c : std::invoke(proj, m)) {
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			if (c != Code{}) ++result;
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		}
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	}
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	return result;
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}
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template<typename GetMapping>
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static constexpr auto extractKeyCodeMapping(GetMapping getMapping)
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{
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	constexpr auto mapping = getMapping();
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	constexpr size_t N = count(mapping, &MsxKeyScanMapping::hostKeyCodes);
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	std::array<KeyCodeMsxMapping, N> result;
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	size_t i = 0;
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	for (const auto& m : mapping) {
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		for (const auto& k : m.hostKeyCodes) {
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			if (k != SDLK_UNKNOWN) {
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				result[i++] = {k, m.msx};
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			}
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		}
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	}
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	assert(i == N);
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	std::ranges::sort(result, {}, &KeyCodeMsxMapping::hostKeyCode);
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	return result;
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}
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template<typename GetMapping>
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static constexpr auto extractScanCodeMapping(GetMapping getMapping)
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{
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	constexpr auto mapping = getMapping();
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	constexpr size_t N = count(mapping, &MsxKeyScanMapping::hostScanCodes);
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	std::array<ScanCodeMsxMapping, N> result;
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	size_t i = 0;
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	for (const auto& m : mapping) {
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		for (const auto& k : m.hostScanCodes) {
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			if (k != SDL_SCANCODE_UNKNOWN) {
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				result[i++] = {k, m.msx};
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			}
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		}
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	}
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	assert(i == N);
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	std::ranges::sort(result, {}, &ScanCodeMsxMapping::hostScanCode);
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	return result;
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}
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static constexpr auto getMSXMapping()
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{
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	// MSX Key-Matrix table
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	//
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	// row/bit  7     6     5     4     3     2     1     0
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	//       +-----+-----+-----+-----+-----+-----+-----+-----+
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	//   0   |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0  |
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	//   1   |  ;  |  ]  |  [  |  \  |  =  |  -  |  9  |  8  |
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	//   2   |  B  |  A  | Acc |  /  |  .  |  ,  |  `  |  '  |
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	//   3   |  J  |  I  |  H  |  G  |  F  |  E  |  D  |  C  |
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	//   4   |  R  |  Q  |  P  |  O  |  N  |  M  |  L  |  K  |
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	//   5   |  Z  |  Y  |  X  |  W  |  V  |  U  |  T  |  S  |
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	//   6   |  F3 |  F2 |  F1 | code| caps|graph| ctrl|shift|
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	//   7   | ret |selec|  bs | stop| tab | esc |  F5 |  F4 |
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	//   8   |right| down|  up | left| del | ins | hom |space|
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	//   9   |  4  |  3  |  2  |  1  |  0  |  /  |  +  |  *  |
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	//  10   |  .  |  ,  |  -  |  9  |  8  |  7  |  6  |  5  |
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	//  11   |     |     |     |     | 'NO'|     |'YES'|     |
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	//       +-----+-----+-----+-----+-----+-----+-----+-----+
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	using M = MsxKeyScanMapping;
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	using P = KeyMatrixPosition;
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	using K = std::array<SDL_Keycode, 3>;
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	using S = std::array<SDL_Scancode, 3>;
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	std::array mapping = {
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		M{P{0x00}, K{SDLK_0},           S{SDL_SCANCODE_0}},
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		M{P{0x01}, K{SDLK_1},           S{SDL_SCANCODE_1}},
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		M{P{0x02}, K{SDLK_2},           S{SDL_SCANCODE_2}},
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		M{P{0x03}, K{SDLK_3},           S{SDL_SCANCODE_3}},
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		M{P{0x04}, K{SDLK_4},           S{SDL_SCANCODE_4}},
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		M{P{0x05}, K{SDLK_5},           S{SDL_SCANCODE_5}},
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		M{P{0x06}, K{SDLK_6},           S{SDL_SCANCODE_6}},
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		M{P{0x07}, K{SDLK_7},           S{SDL_SCANCODE_7}},
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		M{P{0x10}, K{SDLK_8},           S{SDL_SCANCODE_8}},
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		M{P{0x11}, K{SDLK_9},           S{SDL_SCANCODE_9}},
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		M{P{0x12}, K{SDLK_MINUS},       S{SDL_SCANCODE_MINUS}},
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		M{P{0x13}, K{SDLK_EQUALS},      S{SDL_SCANCODE_EQUALS}},
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		M{P{0x14}, K{SDLK_BACKSLASH},   S{SDL_SCANCODE_BACKSLASH, SDL_SCANCODE_INTERNATIONAL3}}, // on Japanese keyboard, the YEN = SDL_SCANCODE_INTERNATIONAL3, but RIGHTBRACKET = SDL_SCANCODE_BACKSLASH
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		M{P{0x15}, K{SDLK_LEFTBRACKET}, S{SDL_SCANCODE_LEFTBRACKET}},
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		M{P{0x16}, K{SDLK_RIGHTBRACKET},S{SDL_SCANCODE_RIGHTBRACKET}},
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		M{P{0x17}, K{SDLK_SEMICOLON},   S{SDL_SCANCODE_SEMICOLON}},
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		M{P{0x20}, K{SDLK_QUOTE},       S{SDL_SCANCODE_APOSTROPHE}},
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		M{P{0x21}, K{SDLK_BACKQUOTE},   S{SDL_SCANCODE_GRAVE}},
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		M{P{0x22}, K{SDLK_COMMA},       S{SDL_SCANCODE_COMMA}},
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		M{P{0x23}, K{SDLK_PERIOD},      S{SDL_SCANCODE_PERIOD}},
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		M{P{0x24}, K{SDLK_SLASH},       S{SDL_SCANCODE_SLASH}},
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		M{P{0x25}, K{SDLK_RCTRL},       S{SDL_SCANCODE_RCTRL, SDL_SCANCODE_NONUSBACKSLASH}}, // Acc / BACKSLASH on Japanese keyboard
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		M{P{0x26}, K{SDLK_a},           S{SDL_SCANCODE_A}},
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		M{P{0x27}, K{SDLK_b},           S{SDL_SCANCODE_B}},
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		M{P{0x30}, K{SDLK_c},           S{SDL_SCANCODE_C}},
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		M{P{0x31}, K{SDLK_d},           S{SDL_SCANCODE_D}},
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		M{P{0x32}, K{SDLK_e},           S{SDL_SCANCODE_E}},
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		M{P{0x33}, K{SDLK_f},           S{SDL_SCANCODE_F}},
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		M{P{0x34}, K{SDLK_g},           S{SDL_SCANCODE_G}},
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		M{P{0x35}, K{SDLK_h},           S{SDL_SCANCODE_H}},
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		M{P{0x36}, K{SDLK_i},           S{SDL_SCANCODE_I}},
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		M{P{0x37}, K{SDLK_j},           S{SDL_SCANCODE_J}},
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		M{P{0x40}, K{SDLK_k},           S{SDL_SCANCODE_K}},
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		M{P{0x41}, K{SDLK_l},           S{SDL_SCANCODE_L}},
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		M{P{0x42}, K{SDLK_m},           S{SDL_SCANCODE_M}},
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		M{P{0x43}, K{SDLK_n},           S{SDL_SCANCODE_N}},
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		M{P{0x44}, K{SDLK_o},           S{SDL_SCANCODE_O}},
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		M{P{0x45}, K{SDLK_p},           S{SDL_SCANCODE_P}},
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		M{P{0x46}, K{SDLK_q},           S{SDL_SCANCODE_Q}},
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		M{P{0x47}, K{SDLK_r},           S{SDL_SCANCODE_R}},
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		M{P{0x50}, K{SDLK_s},           S{SDL_SCANCODE_S}},
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		M{P{0x51}, K{SDLK_t},           S{SDL_SCANCODE_T}},
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		M{P{0x52}, K{SDLK_u},           S{SDL_SCANCODE_U}},
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		M{P{0x53}, K{SDLK_v},           S{SDL_SCANCODE_V}},
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		M{P{0x54}, K{SDLK_w},           S{SDL_SCANCODE_W}},
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		M{P{0x55}, K{SDLK_x},           S{SDL_SCANCODE_X}},
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		M{P{0x56}, K{SDLK_y},           S{SDL_SCANCODE_Y}},
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		M{P{0x57}, K{SDLK_z},           S{SDL_SCANCODE_Z}},
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		M{P{0x60}, K{SDLK_LSHIFT, SDLK_RSHIFT}, S{SDL_SCANCODE_LSHIFT, SDL_SCANCODE_RSHIFT}},
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		M{P{0x61}, K{SDLK_LCTRL},       S{SDL_SCANCODE_LCTRL}},
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		M{P{0x62}, K{SDLK_LALT},        S{SDL_SCANCODE_LALT}}, // GRAPH
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		M{P{0x63}, K{SDLK_CAPSLOCK},    S{SDL_SCANCODE_CAPSLOCK}},
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		M{P{0x64}, K{SDLK_RALT},        S{SDL_SCANCODE_RALT}}, // CODE
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		M{P{0x65}, K{SDLK_F1},          S{SDL_SCANCODE_F1}},
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		M{P{0x66}, K{SDLK_F2},          S{SDL_SCANCODE_F2}},
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		M{P{0x67}, K{SDLK_F3},          S{SDL_SCANCODE_F3}},
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		M{P{0x70}, K{SDLK_F4},          S{SDL_SCANCODE_F4}},
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		M{P{0x71}, K{SDLK_F5},          S{SDL_SCANCODE_F5}},
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		M{P{0x72}, K{SDLK_ESCAPE},      S{SDL_SCANCODE_ESCAPE}},
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		M{P{0x73}, K{SDLK_TAB},         S{SDL_SCANCODE_TAB}},
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		M{P{0x74}, K{SDLK_F8},          S{SDL_SCANCODE_F8}}, // STOP
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		M{P{0x75}, K{SDLK_BACKSPACE},   S{SDL_SCANCODE_BACKSPACE}},
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		M{P{0x76}, K{SDLK_F7},          S{SDL_SCANCODE_F7}}, // SELECT
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		M{P{0x77}, K{SDLK_RETURN,         SDLK_KP_ENTER},
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				   S{SDL_SCANCODE_RETURN, SDL_SCANCODE_KP_ENTER}},
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		M{P{0x80}, K{SDLK_SPACE},       S{SDL_SCANCODE_SPACE}},
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		M{P{0x81}, K{SDLK_HOME},        S{SDL_SCANCODE_HOME}},
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		M{P{0x82}, K{SDLK_INSERT},      S{SDL_SCANCODE_INSERT}},
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		M{P{0x83}, K{SDLK_DELETE},      S{SDL_SCANCODE_DELETE}},
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		M{P{0x84}, K{SDLK_LEFT},        S{SDL_SCANCODE_LEFT}},
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		M{P{0x85}, K{SDLK_UP},          S{SDL_SCANCODE_UP}},
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		M{P{0x86}, K{SDLK_DOWN},        S{SDL_SCANCODE_DOWN}},
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		M{P{0x87}, K{SDLK_RIGHT},       S{SDL_SCANCODE_RIGHT}},
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		M{P{0x90}, K{SDLK_KP_MULTIPLY}, S{SDL_SCANCODE_KP_MULTIPLY}},
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		M{P{0x91}, K{SDLK_KP_PLUS},     S{SDL_SCANCODE_KP_PLUS}},
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		M{P{0x92}, K{SDLK_KP_DIVIDE},   S{SDL_SCANCODE_KP_DIVIDE}},
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		M{P{0x93}, K{SDLK_KP_0},        S{SDL_SCANCODE_KP_0}},
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		M{P{0x94}, K{SDLK_KP_1},        S{SDL_SCANCODE_KP_1}},
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		M{P{0x95}, K{SDLK_KP_2},        S{SDL_SCANCODE_KP_2}},
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		M{P{0x96}, K{SDLK_KP_3},        S{SDL_SCANCODE_KP_3}},
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		M{P{0x97}, K{SDLK_KP_4},        S{SDL_SCANCODE_KP_4}},
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		M{P{0xA0}, K{SDLK_KP_5},        S{SDL_SCANCODE_KP_5}},
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		M{P{0xA1}, K{SDLK_KP_6},        S{SDL_SCANCODE_KP_6}},
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		M{P{0xA2}, K{SDLK_KP_7},        S{SDL_SCANCODE_KP_7}},
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		M{P{0xA3}, K{SDLK_KP_8},        S{SDL_SCANCODE_KP_8}},
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		M{P{0xA4}, K{SDLK_KP_9},        S{SDL_SCANCODE_KP_9}},
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		M{P{0xA5}, K{SDLK_KP_MINUS},    S{SDL_SCANCODE_KP_MINUS}},
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		M{P{0xA6}, K{SDLK_KP_COMMA},    S{SDL_SCANCODE_KP_COMMA}},
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		M{P{0xA7}, K{SDLK_KP_PERIOD},   S{SDL_SCANCODE_KP_PERIOD}},
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		M{P{0xB1}, K{SDLK_RGUI},        S{SDL_SCANCODE_RGUI}},
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		M{P{0xB3}, K{SDLK_LGUI},        S{SDL_SCANCODE_LGUI}},
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	};
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	return mapping;
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}
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static constexpr auto getSVIMapping()
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{
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	// SVI Keyboard Matrix
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	//
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	// row/bit  7     6     5     4     3     2     1     0
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	//       +-----+-----+-----+-----+-----+-----+-----+-----+
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	//   0   |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0  |
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	//   1   |  /  |  .  |  =  |  ,  |  '  |  :  |  9  |  8  |
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	//   2   |  G  |  F  |  E  |  D  |  C  |  B  |  A  |  -  |
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	//   3   |  O  |  N  |  M  |  L  |  K  |  J  |  I  |  H  |
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	//   4   |  W  |  V  |  U  |  T  |  S  |  R  |  Q  |  P  |
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	//   5   | UP  | BS  |  ]  |  \  |  [  |  Z  |  Y  |  X  |
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	//   6   |LEFT |ENTER|STOP | ESC |RGRAP|LGRAP|CTRL |SHIFT|
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	//   7   |DOWN | INS | CLS | F5  | F4  | F3  | F2  | F1  |
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	//   8   |RIGHT|     |PRINT| SEL |CAPS | DEL | TAB |SPACE|
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	//   9   |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0  |  Numerical keypad
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	//  10   |  ,  |  .  |  /  |  *  |  -  |  +  |  9  |  8  |   SVI-328 only
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	//       +-----+-----+-----+-----+-----+-----+-----+-----+
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	using M = MsxKeyScanMapping;
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	using P = KeyMatrixPosition;
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	using K = std::array<SDL_Keycode, 3>;
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	using S = std::array<SDL_Scancode, 3>;
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	std::array mapping = {
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		M{P{0x00}, K{SDLK_0},           S{SDL_SCANCODE_0}},
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		M{P{0x01}, K{SDLK_1},           S{SDL_SCANCODE_1}},
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		M{P{0x02}, K{SDLK_2},           S{SDL_SCANCODE_2}},
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		M{P{0x03}, K{SDLK_3},           S{SDL_SCANCODE_3}},
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		M{P{0x04}, K{SDLK_4},           S{SDL_SCANCODE_4}},
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		M{P{0x05}, K{SDLK_5},           S{SDL_SCANCODE_5}},
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		M{P{0x06}, K{SDLK_6},           S{SDL_SCANCODE_6}},
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		M{P{0x07}, K{SDLK_7},           S{SDL_SCANCODE_7}},
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		M{P{0x10}, K{SDLK_8},           S{SDL_SCANCODE_8}},
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		M{P{0x11}, K{SDLK_9},           S{SDL_SCANCODE_9}},
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		M{P{0x12}, K{SDLK_SEMICOLON},   S{SDL_SCANCODE_SEMICOLON}},
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		M{P{0x13}, K{SDLK_QUOTE},       S{SDL_SCANCODE_APOSTROPHE}},
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		M{P{0x14}, K{SDLK_COMMA},       S{SDL_SCANCODE_COMMA}},
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		M{P{0x15}, K{SDLK_EQUALS},      S{SDL_SCANCODE_EQUALS}},
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		M{P{0x16}, K{SDLK_PERIOD},      S{SDL_SCANCODE_PERIOD}},
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		M{P{0x17}, K{SDLK_SLASH},       S{SDL_SCANCODE_SLASH}},
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		M{P{0x20}, K{SDLK_MINUS},       S{SDL_SCANCODE_MINUS}},
348 
		M{P{0x21}, K{SDLK_a},           S{SDL_SCANCODE_A}},
349 
		M{P{0x22}, K{SDLK_b},           S{SDL_SCANCODE_B}},
350 
		M{P{0x23}, K{SDLK_c},           S{SDL_SCANCODE_C}},
351 
		M{P{0x24}, K{SDLK_d},           S{SDL_SCANCODE_D}},
352 
		M{P{0x25}, K{SDLK_e},           S{SDL_SCANCODE_E}},
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		M{P{0x26}, K{SDLK_f},           S{SDL_SCANCODE_F}},
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		M{P{0x27}, K{SDLK_g},           S{SDL_SCANCODE_G}},
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		M{P{0x30}, K{SDLK_h},           S{SDL_SCANCODE_H}},
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		M{P{0x31}, K{SDLK_i},           S{SDL_SCANCODE_I}},
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		M{P{0x32}, K{SDLK_j},           S{SDL_SCANCODE_J}},
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		M{P{0x33}, K{SDLK_k},           S{SDL_SCANCODE_K}},
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		M{P{0x34}, K{SDLK_l},           S{SDL_SCANCODE_L}},
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		M{P{0x35}, K{SDLK_m},           S{SDL_SCANCODE_M}},
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		M{P{0x36}, K{SDLK_n},           S{SDL_SCANCODE_N}},
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		M{P{0x37}, K{SDLK_o},           S{SDL_SCANCODE_O}},
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		M{P{0x40}, K{SDLK_p},           S{SDL_SCANCODE_P}},
366 
		M{P{0x41}, K{SDLK_q},           S{SDL_SCANCODE_Q}},
367 
		M{P{0x42}, K{SDLK_r},           S{SDL_SCANCODE_R}},
368 
		M{P{0x43}, K{SDLK_s},           S{SDL_SCANCODE_S}},
369 
		M{P{0x44}, K{SDLK_t},           S{SDL_SCANCODE_T}},
370 
		M{P{0x45}, K{SDLK_u},           S{SDL_SCANCODE_U}},
371 
		M{P{0x46}, K{SDLK_v},           S{SDL_SCANCODE_V}},
372 
		M{P{0x47}, K{SDLK_w},           S{SDL_SCANCODE_W}},
373
374 
		M{P{0x50}, K{SDLK_x},           S{SDL_SCANCODE_X}},
375 
		M{P{0x51}, K{SDLK_y},           S{SDL_SCANCODE_Y}},
376 
		M{P{0x52}, K{SDLK_z},           S{SDL_SCANCODE_Z}},
377 
		M{P{0x53}, K{SDLK_LEFTBRACKET}, S{SDL_SCANCODE_LEFTBRACKET}},
378 
		M{P{0x54}, K{SDLK_BACKSLASH},   S{SDL_SCANCODE_BACKSLASH}},
379 
		M{P{0x55}, K{SDLK_RIGHTBRACKET},S{SDL_SCANCODE_RIGHTBRACKET}},
380 
		M{P{0x56}, K{SDLK_BACKSPACE},   S{SDL_SCANCODE_BACKSPACE}},
381 
		M{P{0x57}, K{SDLK_UP},          S{SDL_SCANCODE_UP}},
382
383 
		M{P{0x60}, K{SDLK_LSHIFT, SDLK_RSHIFT}, S{SDL_SCANCODE_LSHIFT, SDL_SCANCODE_RSHIFT}},
384 
		M{P{0x61}, K{SDLK_LCTRL},       S{SDL_SCANCODE_LCTRL}},
385 
		M{P{0x62}, K{SDLK_LALT},        S{SDL_SCANCODE_LALT}},
386 
		M{P{0x63}, K{SDLK_RALT},        S{SDL_SCANCODE_RALT}},
387 
		M{P{0x64}, K{SDLK_ESCAPE},      S{SDL_SCANCODE_ESCAPE}},
388 
		M{P{0x65}, K{SDLK_F8},          S{SDL_SCANCODE_F8}}, // STOP
389 
		M{P{0x66}, K{SDLK_RETURN,         SDLK_KP_ENTER},
390 
				   S{SDL_SCANCODE_RETURN, SDL_SCANCODE_KP_ENTER}},
391 
		M{P{0x67}, K{SDLK_LEFT},        S{SDL_SCANCODE_LEFT}},
392
393 
		M{P{0x70}, K{SDLK_F1},          S{SDL_SCANCODE_F1}},
394 
		M{P{0x71}, K{SDLK_F2},          S{SDL_SCANCODE_F2}},
395 
		M{P{0x72}, K{SDLK_F3},          S{SDL_SCANCODE_F3}},
396 
		M{P{0x73}, K{SDLK_F4},          S{SDL_SCANCODE_F4}},
397 
		M{P{0x74}, K{SDLK_F5},          S{SDL_SCANCODE_F5}},
398 
		M{P{0x75}, K{SDLK_F6},          S{SDL_SCANCODE_F6}}, // CLS
399 
		M{P{0x76}, K{SDLK_INSERT},      S{SDL_SCANCODE_INSERT}},
400 
		M{P{0x77}, K{SDLK_DOWN},        S{SDL_SCANCODE_DOWN}},
401
402 
		M{P{0x80}, K{SDLK_SPACE},       S{SDL_SCANCODE_SPACE}},
403 
		M{P{0x81}, K{SDLK_TAB},         S{SDL_SCANCODE_TAB}},
404 
		M{P{0x82}, K{SDLK_DELETE},      S{SDL_SCANCODE_DELETE}},
405 
		M{P{0x83}, K{SDLK_CAPSLOCK},    S{SDL_SCANCODE_CAPSLOCK}},
406 
		M{P{0x84}, K{SDLK_F7},          S{SDL_SCANCODE_F7}}, // SELECT
407 
		M{P{0x85}, K{SDLK_PRINTSCREEN}, S{SDL_SCANCODE_PRINTSCREEN}}, // PRINT
408 
		// no key on 0x86 ?
409 
		M{P{0x87}, K{SDLK_RIGHT},       S{SDL_SCANCODE_RIGHT}},
410
411 
		M{P{0x90}, K{SDLK_KP_0},        S{SDL_SCANCODE_KP_0}},
412 
		M{P{0x91}, K{SDLK_KP_1},        S{SDL_SCANCODE_KP_1}},
413 
		M{P{0x92}, K{SDLK_KP_2},        S{SDL_SCANCODE_KP_2}},
414 
		M{P{0x93}, K{SDLK_KP_3},        S{SDL_SCANCODE_KP_3}},
415 
		M{P{0x94}, K{SDLK_KP_4},        S{SDL_SCANCODE_KP_4}},
416 
		M{P{0x95}, K{SDLK_KP_5},        S{SDL_SCANCODE_KP_5}},
417 
		M{P{0x96}, K{SDLK_KP_6},        S{SDL_SCANCODE_KP_6}},
418 
		M{P{0x97}, K{SDLK_KP_7},        S{SDL_SCANCODE_KP_7}},
419
420 
		M{P{0xA0}, K{SDLK_KP_8},        S{SDL_SCANCODE_KP_8}},
421 
		M{P{0xA1}, K{SDLK_KP_9},        S{SDL_SCANCODE_KP_9}},
422 
		M{P{0xA2}, K{SDLK_KP_PLUS},     S{SDL_SCANCODE_KP_PLUS}},
423 
		M{P{0xA3}, K{SDLK_KP_MINUS},    S{SDL_SCANCODE_KP_MINUS}},
424 
		M{P{0xA4}, K{SDLK_KP_MULTIPLY}, S{SDL_SCANCODE_KP_MULTIPLY}},
425 
		M{P{0xA5}, K{SDLK_KP_DIVIDE},   S{SDL_SCANCODE_KP_DIVIDE}},
426 
		M{P{0xA6}, K{SDLK_KP_PERIOD},   S{SDL_SCANCODE_KP_PERIOD}},
427 
		M{P{0xA7}, K{SDLK_KP_COMMA},    S{SDL_SCANCODE_KP_COMMA}},
428 
	};
429 
	return mapping;
430 
}
431
432 
static constexpr auto getCvJoyMapping()
433 
{
434 
	// ColecoVision Joystick "Matrix"
435 
	//
436 
	// The hardware consists of 2 controllers that each have 2 triggers
437 
	// and a 12-key keypad. They're not actually connected in a matrix,
438 
	// but a ghosting-free matrix is the easiest way to model it in openMSX.
439 
	//
440 
	// row/bit  7     6     5     4     3     2     1     0
441 
	//       +-----+-----+-----+-----+-----+-----+-----+-----+
442 
	//   0   |TRIGB|TRIGA|     |     |LEFT |DOWN |RIGHT| UP  |  controller 1
443 
	//   1   |TRIGB|TRIGA|     |     |LEFT |DOWN |RIGHT| UP  |  controller 2
444 
	//   2   |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0  |  controller 1
445 
	//   3   |     |     |     |     |  #  |  *  |  9  |  8  |  controller 1
446 
	//   4   |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0  |  controller 2
447 
	//   5   |     |     |     |     |  #  |  *  |  9  |  8  |  controller 2
448 
	//       +-----+-----+-----+-----+-----+-----+-----+-----+
449 
	using M = MsxKeyScanMapping;
450 
	using P = KeyMatrixPosition;
451 
	using K = std::array<SDL_Keycode, 3>;
452 
	using S = std::array<SDL_Scancode, 3>;
453 
	std::array mapping = {
454 
		M{P{0x00}, K{SDLK_UP},      S{SDL_SCANCODE_UP}},
455 
		M{P{0x01}, K{SDLK_RIGHT},   S{SDL_SCANCODE_RIGHT}},
456 
		M{P{0x02}, K{SDLK_DOWN},    S{SDL_SCANCODE_DOWN}},
457 
		M{P{0x03}, K{SDLK_LEFT},    S{SDL_SCANCODE_LEFT}},
458 
		M{P{0x06}, K{SDLK_SPACE,        SDLK_RCTRL},
459 
		           S{SDL_SCANCODE_SPACE, SDL_SCANCODE_RCTRL}},
460 
		M{P{0x07}, K{SDLK_RSHIFT,         SDLK_RALT,         SDLK_LALT},
461 
		           S{SDL_SCANCODE_RSHIFT, SDL_SCANCODE_RALT, SDL_SCANCODE_LALT}},
462
463 
		M{P{0x10}, K{SDLK_w},       S{SDL_SCANCODE_W}},
464 
		M{P{0x11}, K{SDLK_d},       S{SDL_SCANCODE_D}},
465 
		M{P{0x12}, K{SDLK_s},       S{SDL_SCANCODE_S}},
466 
		M{P{0x13}, K{SDLK_a},       S{SDL_SCANCODE_A}},
467 
		M{P{0x16}, K{SDLK_LCTRL},   S{SDL_SCANCODE_LCTRL}},
468 
		M{P{0x17}, K{SDLK_LSHIFT},  S{SDL_SCANCODE_LSHIFT}},
469
470 
		M{P{0x20}, K{SDLK_0, SDLK_KP_0},       S{SDL_SCANCODE_0}},
471 
		M{P{0x21}, K{SDLK_1, SDLK_KP_1},       S{SDL_SCANCODE_1}},
472 
		M{P{0x22}, K{SDLK_2, SDLK_KP_2},       S{SDL_SCANCODE_2}},
473 
		M{P{0x23}, K{SDLK_3, SDLK_KP_3},       S{SDL_SCANCODE_3}},
474 
		M{P{0x24}, K{SDLK_4, SDLK_KP_4},       S{SDL_SCANCODE_4}},
475 
		M{P{0x25}, K{SDLK_5, SDLK_KP_5},       S{SDL_SCANCODE_5}},
476 
		M{P{0x26}, K{SDLK_6, SDLK_KP_6}, S{SDL_SCANCODE_6}},
477 
		M{P{0x27}, K{SDLK_7, SDLK_KP_7}, S{SDL_SCANCODE_7}},
478
479 
		M{P{0x30}, K{SDLK_8, SDLK_KP_8}, S{SDL_SCANCODE_8}},
480 
		M{P{0x31}, K{SDLK_9, SDLK_KP_9}, S{SDL_SCANCODE_9}},
481 
		M{P{0x32}, K{SDLK_MINUS,         SDLK_KP_MULTIPLY,         SDLK_KP_MINUS},
482 
		           S{SDL_SCANCODE_MINUS, SDL_SCANCODE_KP_MULTIPLY, SDL_SCANCODE_KP_MINUS}}, // *
483 
		M{P{0x33}, K{SDLK_EQUALS,         SDLK_KP_DIVIDE,         SDLK_KP_PLUS},
484 
		           S{SDL_SCANCODE_EQUALS, SDL_SCANCODE_KP_DIVIDE, SDL_SCANCODE_KP_PLUS}},// #
485
486 
		M{P{0x40}, K{SDLK_u},       S{SDL_SCANCODE_U}}, // 0
487 
		M{P{0x41}, K{SDLK_v},       S{SDL_SCANCODE_V}}, // 1
488 
		M{P{0x42}, K{SDLK_b},       S{SDL_SCANCODE_B}}, // 2
489 
		M{P{0x43}, K{SDLK_n},       S{SDL_SCANCODE_N}}, // 3
490 
		M{P{0x44}, K{SDLK_f},       S{SDL_SCANCODE_F}}, // 4
491 
		M{P{0x45}, K{SDLK_g},       S{SDL_SCANCODE_G}}, // 5
492 
		M{P{0x46}, K{SDLK_h},       S{SDL_SCANCODE_H}}, // 6
493 
		M{P{0x47}, K{SDLK_r},       S{SDL_SCANCODE_R}}, // 7
494
495 
		M{P{0x50}, K{SDLK_t},       S{SDL_SCANCODE_T}}, // 8
496 
		M{P{0x51}, K{SDLK_y},       S{SDL_SCANCODE_Y}}, // 9
497 
		M{P{0x52}, K{SDLK_j},       S{SDL_SCANCODE_J}}, // *
498 
		M{P{0x53}, K{SDLK_m},       S{SDL_SCANCODE_M}}, // #
499 
	};
500 
	return mapping;
501 
}
502
503 
static constexpr auto getSegaMapping()
504 
{
505 
	// Sega SC-3000 / SK-1100 Keyboard Matrix
506 
	//
507 
	// row/bit  7     6     5     4     3     2     1     0
508 
	//       +-----+-----+-----+-----+-----+-----+-----+-----+  PPI
509 
	//   0   |  I  |  K  |  ,  | eng |  Z  |  A  |  Q  |  1  |  A0
510 
	//   1   |  O  |  L  |  .  |space|  X  |  S  |  W  |  2  |  A1
511 
	//   2   |  P  |  ;  |  /  |home |  C  |  D  |  E  |  3  |  A2
512 
	//   3   |  @  |  :  | pi  |ins  |  V  |  F  |  R  |  4  |  A3
513 
	//   4   |  [  |  ]  |down |     |  B  |  G  |  T  |  5  |  A4
514 
	//   5   |     | cr  |left |     |  N  |  H  |  Y  |  6  |  A5
515 
	//   6   |     | up  |right|     |  M  |  J  |  U  |  7  |  A6
516 
	//       +-----+-----+-----+-----+-----+-----+-----+-----+
517 
	//   7   |     |     |     |     |     |     |     |  8  |  B0
518 
	//   8   |     |     |     |     |     |     |     |  9  |  B1
519 
	//   9   |     |     |     |     |     |     |     |  0  |  B2
520 
	//   A   |     |     |     |     |     |     |     |  -  |  B3
521 
	//   B   |     |     |     |     |     |     |     |  ^  |  B4
522 
	//   C   |     |     |     |     |func |     |     | cur |  B5
523 
	//   D   |     |     |     |     |shift|ctrl |graph|break|  B6
524 
	//       +-----+-----+-----+-----+-----+-----+-----+-----+
525 
	// Issues:
526 
	// - graph is a lock key and gets pressed when using alt-tab
527 
	// - alt-F7 is bound to quick-load
528 
	using M = MsxKeyScanMapping;
529 
	using P = KeyMatrixPosition;
530 
	using K = std::array<SDL_Keycode, 3>;
531 
	using S = std::array<SDL_Scancode, 3>;
532 
	std::array mapping = {
533 
		M{P{0x00}, K{SDLK_1,         SDLK_KP_1},
534 
		           S{SDL_SCANCODE_1, SDL_SCANCODE_KP_1}},
535 
		M{P{0x01}, K{SDLK_q},           S{SDL_SCANCODE_Q}},
536 
		M{P{0x02}, K{SDLK_a},           S{SDL_SCANCODE_A}},
537 
		M{P{0x03}, K{SDLK_z},           S{SDL_SCANCODE_Z}},
538 
		M{P{0x04}, K{SDLK_RALT},        S{SDL_SCANCODE_RALT}},  // eng
539 
		M{P{0x05}, K{SDLK_COMMA},       S{SDL_SCANCODE_COMMA}},
540 
		M{P{0x06}, K{SDLK_k},           S{SDL_SCANCODE_K}},
541 
		M{P{0x07}, K{SDLK_i},           S{SDL_SCANCODE_I}},
542
543 
		M{P{0x10}, K{SDLK_2,         SDLK_KP_2},
544 
		          S{SDL_SCANCODE_2, SDL_SCANCODE_KP_2}},
545 
		M{P{0x11}, K{SDLK_w},           S{SDL_SCANCODE_W}},
546 
		M{P{0x12}, K{SDLK_s},           S{SDL_SCANCODE_S}},
547 
		M{P{0x13}, K{SDLK_x},           S{SDL_SCANCODE_X}},
548 
		M{P{0x14}, K{SDLK_SPACE},       S{SDL_SCANCODE_SPACE}},
549 
		M{P{0x15}, K{SDLK_PERIOD,         SDLK_KP_PERIOD},
550 
		           S{SDL_SCANCODE_PERIOD, SDL_SCANCODE_KP_PERIOD}},
551 
		M{P{0x16}, K{SDLK_l},           S{SDL_SCANCODE_L}},
552 
		M{P{0x17}, K{SDLK_o},           S{SDL_SCANCODE_O}},
553
554 
		M{P{0x20}, K{SDLK_3,         SDLK_KP_3},
555 
		           S{SDL_SCANCODE_3, SDL_SCANCODE_KP_3}},
556 
		M{P{0x21}, K{SDLK_e},           S{SDL_SCANCODE_E}},
557 
		M{P{0x22}, K{SDLK_d},           S{SDL_SCANCODE_D}},
558 
		M{P{0x23}, K{SDLK_c},           S{SDL_SCANCODE_C}},
559 
		M{P{0x24}, K{SDLK_HOME},        S{SDL_SCANCODE_HOME}},
560 
		M{P{0x25}, K{SDLK_SLASH,         SDLK_KP_DIVIDE},
561 
		           S{SDL_SCANCODE_SLASH, SDL_SCANCODE_KP_DIVIDE}},
562 
		M{P{0x26}, K{SDLK_SEMICOLON,         SDLK_KP_PLUS},
563 
		           S{SDL_SCANCODE_SEMICOLON, SDL_SCANCODE_KP_PLUS}},
564 
		M{P{0x27}, K{SDLK_p},           S{SDL_SCANCODE_P}},
565
566 
		M{P{0x30}, K{SDLK_4,         SDLK_KP_4},
567 
		           S{SDL_SCANCODE_4, SDL_SCANCODE_KP_4}},
568 
		M{P{0x31}, K{SDLK_r},           S{SDL_SCANCODE_R}},
569 
		M{P{0x32}, K{SDLK_f},           S{SDL_SCANCODE_F}},
570 
		M{P{0x33}, K{SDLK_v},           S{SDL_SCANCODE_V}},
571 
		M{P{0x34}, K{SDLK_INSERT},      S{SDL_SCANCODE_INSERT}},
572 
		M{P{0x35}, K{SDLK_F7},          S{SDL_SCANCODE_F7}},         // pi
573 
		M{P{0x36}, K{SDLK_QUOTE,              SDLK_KP_MULTIPLY},
574 
		           S{SDL_SCANCODE_APOSTROPHE, SDL_SCANCODE_KP_MULTIPLY}}, // :
575 
		M{P{0x37}, K{SDLK_BACKQUOTE},   S{SDL_SCANCODE_GRAVE}},      // @
576
577 
		M{P{0x40}, K{SDLK_5,         SDLK_KP_5},
578 
		           S{SDL_SCANCODE_5, SDL_SCANCODE_KP_5}},
579 
		M{P{0x41}, K{SDLK_t},           S{SDL_SCANCODE_T}},
580 
		M{P{0x42}, K{SDLK_g},           S{SDL_SCANCODE_G}},
581 
		M{P{0x43}, K{SDLK_b},           S{SDL_SCANCODE_B}},
582 
		// nothing on 0x44
583 
		M{P{0x45}, K{SDLK_DOWN},        S{SDL_SCANCODE_DOWN}},
584 
		M{P{0x46}, K{SDLK_RIGHTBRACKET},S{SDL_SCANCODE_RIGHTBRACKET}},
585 
		M{P{0x47}, K{SDLK_LEFTBRACKET}, S{SDL_SCANCODE_LEFTBRACKET}},
586
587 
		M{P{0x50}, K{SDLK_6,         SDLK_KP_6},
588 
		           S{SDL_SCANCODE_6, SDL_SCANCODE_KP_6}},
589 
		M{P{0x51}, K{SDLK_y},           S{SDL_SCANCODE_Y}},
590 
		M{P{0x52}, K{SDLK_h},           S{SDL_SCANCODE_H}},
591 
		M{P{0x53}, K{SDLK_n},           S{SDL_SCANCODE_N}},
592 
		// nothing on 0x54
593 
		M{P{0x55}, K{SDLK_LEFT},        S{SDL_SCANCODE_LEFT}},
594 
		M{P{0x56}, K{SDLK_RETURN,         SDLK_KP_ENTER},
595 
		           S{SDL_SCANCODE_RETURN, SDL_SCANCODE_KP_ENTER}},
596 
		//P{ not}hing on 0x57
597
598 
		M{P{0x60}, K{SDLK_7,         SDLK_KP_7},
599 
		           S{SDL_SCANCODE_7, SDL_SCANCODE_KP_7}},
600 
		M{P{0x61}, K{SDLK_u},           S{SDL_SCANCODE_U}},
601 
		M{P{0x62}, K{SDLK_j},           S{SDL_SCANCODE_J}},
602 
		M{P{0x63}, K{SDLK_m},           S{SDL_SCANCODE_M}},
603 
		// nothing on 0x64
604 
		M{P{0x65}, K{SDLK_RIGHT},       S{SDL_SCANCODE_RIGHT}},
605 
		M{P{0x66}, K{SDLK_UP},          S{SDL_SCANCODE_UP}},
606 
		// nothing on 0x67
607
608 
		M{P{0x70}, K{SDLK_8,         SDLK_KP_8},
609 
		           S{SDL_SCANCODE_8, SDL_SCANCODE_KP_8}},
610 
		M{P{0x80}, K{SDLK_9,         SDLK_KP_9},
611 
		           S{SDL_SCANCODE_9, SDL_SCANCODE_KP_9}},
612 
		M{P{0x90}, K{SDLK_0,         SDLK_KP_0},
613 
		           S{SDL_SCANCODE_0, SDL_SCANCODE_KP_0}},
614 
		M{P{0xA0}, K{SDLK_MINUS,         SDLK_KP_MINUS},
615 
		           S{SDL_SCANCODE_MINUS, SDL_SCANCODE_KP_MINUS}},
616 
		M{P{0xB0}, K{SDLK_EQUALS},      S{SDL_SCANCODE_EQUALS}}, // ^
617
618 
		M{P{0xC0}, K{SDLK_BACKSLASH},   S{SDL_SCANCODE_BACKSLASH}}, // cur
619 
		M{P{0xC3}, K{SDLK_TAB},         S{SDL_SCANCODE_TAB}},       // func
620
621 
		M{P{0xD0}, K{SDLK_ESCAPE,         SDLK_F8},
622 
		           S{SDL_SCANCODE_ESCAPE, SDL_SCANCODE_F8}},   // break
623 
		M{P{0xD1}, K{SDLK_LALT},        S{SDL_SCANCODE_LALT}}, // graph
624 
		M{P{0xD2}, K{SDLK_LCTRL},       S{SDL_SCANCODE_LCTRL}},
625 
		M{P{0xD3}, K{SDLK_LSHIFT,         SDLK_RSHIFT},
626 
		        S{SDL_SCANCODE_LSHIFT, SDL_SCANCODE_RSHIFT}},
627 
	};
628 
	return mapping;
629 
//// 0    1    2    3    4    5    6    7    8    9    a    b    c    d    e    f
630 
//   x  , x  , x  , x  , x  , x  , x  , x  ,0x34,0xC3, x  , x  , x  ,0x56, x  , x  , //000
631 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  ,0xD0, x  , x  , x  , x  , //010
632 
//  0x14, x  , x  , x  , x  , x  , x  ,0x36, x  , x  , x  , x  ,0x05,0xA0,0x15,0x25, //020
633 
//  0x90,0x00,0x10,0x20,0x30,0x40,0x50,0x60,0x70,0x80,0x36,0x26, x  ,0xB0, x  , x  , //030
634 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //040
635 
//   x  ,0x55,0x66,0x65,0x45, x  , x  , x  , x  , x  , x  ,0x47,0xC0,0x46, x  , x  , //050
636 
//  0x37,0x02,0x43,0x23,0x22,0x21,0x32,0x42,0x52,0x07,0x62,0x06,0x16,0x63,0x53,0x17, //060
637 
//  0x27,0x01,0x31,0x12,0x41,0x61,0x33,0x11,0x13,0x51,0x03, x  , x  , x  , x  ,0x34, //070
638 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //080
639 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //090
640 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //0A0
641 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //0B0
642 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //0C0
643 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //0D0
644 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //0E0
645 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //0F0
646 
//  0x90,0x00,0x10,0x20,0x30,0x40,0x50,0x60,0x70,0x80,0x15,0x25,0x36,0xA0,0x26,0x56, //100
647 
//   x  ,0x66,0x45,0x65,0x55,0x34,0x24, x  , x  , x  , x  , x  , x  , x  , x  , x  , //110
648 
//  0x35,0xD0, x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  ,0xD3, //120
649 
//  0xD3, x  ,0xD2,0x04,0xD1, x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //130
650 
//   x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , x  , //140
651 
}
652
653 
static constexpr auto msxKeyCodeMapping    = extractKeyCodeMapping ([] { return getMSXMapping(); });
654 
static constexpr auto msxScanCodeMapping   = extractScanCodeMapping([] { return getMSXMapping(); });
655 
static constexpr auto sviKeyCodeMapping    = extractKeyCodeMapping ([] { return getSVIMapping(); });
656 
static constexpr auto sviScanCodeMapping   = extractScanCodeMapping([] { return getSVIMapping(); });
657 
static constexpr auto cvJoyKeyCodeMapping  = extractKeyCodeMapping ([] { return getCvJoyMapping(); });
658 
static constexpr auto cvJoyScanCodeMapping = extractScanCodeMapping([] { return getCvJoyMapping(); });
659 
static constexpr auto segaKeyCodeMapping   = extractKeyCodeMapping ([] { return getSegaMapping(); });
660 
static constexpr auto segaScanCodeMapping  = extractScanCodeMapping([] { return getSegaMapping(); });
661
662 
static constexpr array_with_enum_index<Keyboard::Matrix, std::span<const KeyCodeMsxMapping>> defaultKeyCodeMappings = {
663 
	msxKeyCodeMapping,
664 
	sviKeyCodeMapping,
665 
	cvJoyKeyCodeMapping,
666 
	segaKeyCodeMapping,
667 
};
668 
static constexpr array_with_enum_index<Keyboard::Matrix, std::span<const ScanCodeMsxMapping>> defaultScanCodeMappings = {
669 
	msxScanCodeMapping,
670 
	sviScanCodeMapping,
671 
	cvJoyScanCodeMapping,
672 
	segaScanCodeMapping,
673 
};
674
675 
Keyboard::Keyboard(MSXMotherBoard& motherBoard,
676 
                   Scheduler& scheduler_,
677 
                   CommandController& commandController_,
678 
                   EventDistributor& eventDistributor_,
679 
                   MSXEventDistributor& msxEventDistributor_,
680 
                   StateChangeDistributor& stateChangeDistributor_,
681 
                   Matrix matrix,
682 
                   const DeviceConfig& config)
683 
	: Schedulable(scheduler_)
684 
	, commandController(commandController_)
685 
	, msxEventDistributor(msxEventDistributor_)
686 
	, stateChangeDistributor(stateChangeDistributor_)
687 
	, eventDistributor(eventDistributor_)
688 
	, keyCodeTab (defaultKeyCodeMappings [matrix])
689 
	, scanCodeTab(defaultScanCodeMappings[matrix])
690 
	, modifierPos(modifierPosForMatrix[matrix])
691 
	, keyMatrixUpCmd  (commandController, stateChangeDistributor, scheduler_)
692 
	, keyMatrixDownCmd(commandController, stateChangeDistributor, scheduler_)
693 
	, keyTypeCmd      (commandController, stateChangeDistributor, scheduler_)
694 
	, msxcode2UnicodeCmd(commandController)
695 
	, unicode2MsxcodeCmd(commandController)
696 
	, capsLockAligner(eventDistributor, scheduler_)
697 
#if defined(_WIN32)
698 
	, imeManager(eventDistributor)
699 
#endif
700 
	, keyboardSettings(commandController)
701 
	, msxKeyEventQueue(scheduler_, commandController.getInterpreter())
702 
	, keybDebuggable(motherBoard)
703 
	, unicodeKeymap(config.getChildData(
704 
		"keyboard_type", defaultKeymapForMatrix[matrix]))
705 
	, hasKeypad(config.getChildDataAsBool("has_keypad", true))
706 
	, blockRow11(matrix == Matrix::MSX
707 
		&& !config.getChildDataAsBool("has_yesno_keys", false))
708 
	, keyGhosting(config.getChildDataAsBool("key_ghosting", true))
709 
	, keyGhostingSGCprotected(config.getChildDataAsBool(
710 
		"key_ghosting_sgc_protected", true))
711 
	, modifierIsLock(KeyInfo::CAPS_MASK
712 
		| (config.getChildDataAsBool("code_kana_locks", false) ? KeyInfo::CODE_MASK : 0)
713 
		| (config.getChildDataAsBool("graph_locks", false) ? KeyInfo::GRAPH_MASK : 0))
714 
{
715 
	std::ranges::fill(keyMatrix,     255);
716 
	std::ranges::fill(cmdKeyMatrix,  255);
717 
	std::ranges::fill(typeKeyMatrix, 255);
718 
	std::ranges::fill(userKeyMatrix, 255);
719 
	std::ranges::fill(hostKeyMatrix, 255);
720
721 
	msxEventDistributor.registerEventListener(*this);
722 
	stateChangeDistributor.registerListener(*this);
723 
	// We do not listen for CONSOLE_OFF_EVENTS because rescanning the
724 
	// keyboard can have unwanted side effects
725
726 
	eventDistributor.registerEventListener(EventType::KEYMAP_CHANGED, *this);
727
728 
	motherBoard.registerKeyboard(*this);
729 
}
730
731 
Keyboard::~Keyboard()
732 
{
733 
	auto& motherBoard = keybDebuggable.getMotherBoard();
734 
	motherBoard.unregisterKeyboard(*this);
735
736 
	eventDistributor.unregisterEventListener(EventType::KEYMAP_CHANGED, *this);
737
738 
	stateChangeDistributor.unregisterListener(*this);
739 
	msxEventDistributor.unregisterEventListener(*this);
740 
}
741
742 
const MsxChar2Unicode& Keyboard::getMsxChar2Unicode() const
743 
{
744 
	return unicodeKeymap.getMsxChars();
745 
}
746
747 
static constexpr void doKeyGhosting(std::span<uint8_t, KeyMatrixPosition::NUM_ROWS> matrix,
748 
                                    bool protectRow6)
749 
{
750 
	// This routine enables key-ghosting as seen on a real MSX
751 
	//
752 
	// If on a real MSX in the keyboard matrix the
753 
	// real buttons are pressed as in the left matrix
754 
	//           then the matrix to the
755 
	// 10111111  right will be read by   10110101
756 
	// 11110101  because of the simple   10110101
757 
	// 10111101  electrical connections  10110101
758 
	//           that are established  by
759 
	// the closed switches
760 
	// However, some MSX models have protection against
761 
	// key-ghosting for SHIFT, GRAPH and CODE keys
762 
	// On those models, SHIFT, GRAPH and CODE are
763 
	// connected to row 6 via a diode. It prevents that
764 
	// SHIFT, GRAPH and CODE get ghosted to another
765 
	// row.
766 
	bool changedSomething = false;
767 
	do {
768 
		changedSomething = false;
769 
		// TODO: On Sega keyboards, ghosting should probably be done separately
770 
		//       for rows 0..6 and 7..14, since they're connected to different
771 
		//       PPI ports.
772 
		for (auto i : xrange(KeyMatrixPosition::NUM_ROWS - 1)) {
773 
			auto row1 = matrix[i];
774 
			for (auto j : xrange(i + 1, KeyMatrixPosition::NUM_ROWS)) {
775 
				auto row2 = matrix[j];
776 
				if ((row1 != row2) && ((row1 | row2) != 0xff)) {
777 
					auto rowIold = matrix[i];
778 
					auto rowJold = matrix[j];
779 
					// TODO: The shift/graph/code key ghosting protection
780 
					//       implementation is only correct for MSX.
781 
					if (protectRow6 && i == 6) {
782 
						matrix[i] = row1 & row2;
783 
						matrix[j] = (row1 | 0x15) & row2;
784 
						row1 &= row2;
785 
					} else if (protectRow6 && j == 6) {
786 
						matrix[i] = row1 & (row2 | 0x15);
787 
						matrix[j] = row1 & row2;
788 
						row1 &= (row2 | 0x15);
789 
					} else {
790 
						// not same and some common zero's
791 
						//  --> inherit other zero's
792 
						uint8_t newRow = row1 & row2;
793 
						matrix[i] = newRow;
794 
						matrix[j] = newRow;
795 
						row1 = newRow;
796 
					}
797 
					if (rowIold != matrix[i] ||
798 
					    rowJold != matrix[j]) {
799 
						changedSomething = true;
800 
					}
801 
				}
802 
			}
803 
		}
804 
	} while (changedSomething);
805 
}
806
807 
std::span<const uint8_t, KeyMatrixPosition::NUM_ROWS> Keyboard::getKeys() const
808 
{
809 
	if (keysChanged) {
810 
		keysChanged = false;
811 
		std::span matrix = keyTypeCmd.isActive() ? typeKeyMatrix : userKeyMatrix;
812 
		for (auto row : xrange(KeyMatrixPosition::NUM_ROWS)) {
813 
			keyMatrix[row] = cmdKeyMatrix[row] & matrix[row];
814 
		}
815 
		if (keyGhosting) {
816 
			doKeyGhosting(keyMatrix, keyGhostingSGCprotected);
817 
		}
818 
	}
819 
	return keyMatrix;
820 
}
821
822 
void Keyboard::transferHostKeyMatrix(const Keyboard& source)
823 
{
824 
	// This mechanism exists to solve the following problem:
825 
	//   - play a game where the spacebar is constantly pressed (e.g.
826 
	//     Road Fighter)
827 
	//   - go back in time (press the reverse hotkey) while keeping the
828 
	//     spacebar pressed
829 
	//   - interrupt replay by pressing the cursor keys, still while
830 
	//     keeping spacebar pressed
831 
	// At the moment replay is interrupted, we need to resynchronize the
832 
	// msx keyboard with the host keyboard. In the past we assumed the host
833 
	// keyboard had no keys pressed. But this is wrong in the above
834 
	// scenario. Now we remember the state of the host keyboard and
835 
	// transfer that to the new keyboard(s) that get created for reverse.
836 
	// When replay is stopped we restore this host keyboard state, see
837 
	// stopReplay().
838
839 
	for (auto row : xrange(KeyMatrixPosition::NUM_ROWS)) {
840 
		hostKeyMatrix[row] = source.hostKeyMatrix[row];
841 
	}
842 
}
843
844 
void Keyboard::setFocus(bool newFocus, EmuTime time)
845 
{
846 
	if (newFocus == focus) return;
847 
	focus = newFocus;
848
849 
	if (!stateChangeDistributor.isReplaying()) {
850 
		syncHostKeyMatrix(time); // release all keys on lost focus
851 
	}
852 
}
853
854 
/* Received an MSX event
855 
 * Following events get processed:
856 
 *  EventType::KEY_DOWN
857 
 *  EventType::KEY_UP
858 
 */
859 
void Keyboard::signalMSXEvent(const Event& event,
860 
                              EmuTime time) noexcept
861 
{
862 
	if (getType(event) == one_of(EventType::KEY_DOWN, EventType::KEY_UP)) {
863 
		const auto& keyEvent = get_event<KeyEvent>(event);
864 
		if (keyEvent.getRepeat()) return;
865 
		// Ignore possible console on/off events:
866 
		// we do not re-scan the keyboard since this may lead to
867 
		// an unwanted pressing of <return> in MSX after typing
868 
		// "set console off" in the console.
869 
		msxKeyEventQueue.process_asap(time, event);
870 
	}
871 
}
872
873 
void Keyboard::signalStateChange(const StateChange& event)
874 
{
875 
	const auto* kms = std::get_if<KeyMatrixState>(&event);
876 
	if (!kms) return;
877
878 
	userKeyMatrix[kms->getRow()] &= uint8_t(~kms->getPress());
879 
	userKeyMatrix[kms->getRow()] |=          kms->getRelease();
880 
	keysChanged = true; // do ghosting at next getKeys()
881 
}
882
883 
void Keyboard::stopReplay(EmuTime time) noexcept
884 
{
885 
	syncHostKeyMatrix(time);
886 
}
887
888 
void Keyboard::syncHostKeyMatrix(EmuTime time)
889 
{
890 
	for (auto [row, hkm] : enumerate(hostKeyMatrix)) {
891 
		changeKeyMatrixEvent(time, uint8_t(row), hkm);
892 
	}
893 
	msxModifiers = 0xff;
894 
	msxKeyEventQueue.clear();
895 
	lastUnicodeForScancode.clear();
896 
}
897
898 
uint8_t Keyboard::needsLockToggle(const UnicodeKeymap::KeyInfo& keyInfo) const
899 
{
900 
	return modifierIsLock
901 
	     & (locksOn ^ keyInfo.modMask)
902 
	     & unicodeKeymap.getRelevantMods(keyInfo);
903 
}
904
905 
bool Keyboard::isKeyMatrixPressed(KeyMatrixPosition pos) const
906 
{
907 
	if (!pos.isValid()) return false;
908 
	auto row = pos.getRow();
909 
	auto mask = pos.getMask();
910 
	return ((hostKeyMatrix[row] & mask) == 0) &&
911 
	       ((userKeyMatrix[row] & mask) == 0);
912 
}
913
914 
void Keyboard::pressKeyMatrixEvent(EmuTime time, KeyMatrixPosition pos)
915 
{
916 
	if (!pos.isValid()) {
917 
		// No such key.
918 
		return;
919 
	}
920 
	if (isKeyMatrixPressed(pos)) {
921 
		// Won't have any effect, ignore.
922 
		return;
923 
	}
924 
	auto row = pos.getRow();
925 
	changeKeyMatrixEvent(time, row, hostKeyMatrix[row] & ~pos.getMask());
926 
}
927
928 
void Keyboard::releaseKeyMatrixEvent(EmuTime time, KeyMatrixPosition pos)
929 
{
930 
	if (!pos.isValid()) {
931 
		// No such key.
932 
		return;
933 
	}
934 
	auto row = pos.getRow();
935 
	auto release = pos.getMask();
936 
	if (((hostKeyMatrix[row] & release) == release) &&
937 
	    ((userKeyMatrix[row] & release) == release)) {
938 
		// Won't have any effect, ignore.
939 
		// Test scenario: during replay, exit the openmsx console with
940 
		// the 'toggle console' command. The 'enter,release' event will
941 
		// end up here. But it shouldn't stop replay.
942 
		return;
943 
	}
944 
	changeKeyMatrixEvent(time, row, hostKeyMatrix[row] | release);
945 
}
946
947 
void Keyboard::changeKeyMatrixEvent(EmuTime time, uint8_t row, uint8_t newValue)
948 
{
949 
	if (!focus) newValue = 0xff;
950
951 
	// This method already updates hostKeyMatrix[],
952 
	// userKeyMatrix[] will soon be updated via KeyMatrixState events.
953 
	hostKeyMatrix[row] = newValue;
954
955 
	uint8_t diff = userKeyMatrix[row] ^ newValue;
956 
	if (diff == 0) return;
957 
	uint8_t press   = userKeyMatrix[row] & diff;
958 
	uint8_t release = newValue           & diff;
959 
	stateChangeDistributor.distributeNew<KeyMatrixState>(
960 
		time, row, press, release);
961 
}
962
963 
/*
964 
 * @return True iff a release event for the CODE/KANA key must be scheduled.
965 
 */
966 
bool Keyboard::processQueuedEvent(const Event& event, EmuTime time)
967 
{
968 
	auto mode = keyboardSettings.getMappingMode();
969
970 
	const auto& keyEvent = get_event<KeyEvent>(event);
971 
	bool down = getType(event) == EventType::KEY_DOWN;
972 
	auto key = keyEvent.getKey();
973
974 
	// Check if the host keyboard is a Japanese keyboard. If so, ignore the GRAVE key.
975 
	// Reason:
976 
	// On Windows with a Japanese keyboard layout, the "Half-width/Full-width" key
977 
	// does not send a release event. This causes the key to get stuck in a pressed state.
978 
	// This key is for switching input modes, but its physical location is the GRAVE key.
979 
	// Japanese MSX does not have a GRAVE key and does not use it, so we simply ignore it.
980 
	// Previously, we could easily ignore it because the scancode was UNKNOWN.
981 
	// Recently, it started reporting as a GRAVE key scancode, so we changed the condition here.
982 
	if (hostKeyMap == HostKeyMap::UNKNOWN) {
983 
		if (SDL_GetKeyFromScancode(SDL_SCANCODE_LEFTBRACKET) == SDLK_AT) {
984 
			hostKeyMap = HostKeyMap::JP;
985 
		} else {
986 
			hostKeyMap = HostKeyMap::EN;
987 
		}
988 
	}
989
990 
	if (down) {
991 
		auto codepointToUtf8 = [](uint32_t cp) {
992 
			std::array<char, 4> buffer;
993 
			auto* start = buffer.data();
994 
			auto* end = utf8::unchecked::append(cp, start);
995 
			return std::string(start, end);
996 
		};
997
998 
		// TODO: refactor debug(...) method to expect a std::string and then adapt
999 
		// all invocations of it to provide a properly formatted string, using the C++
1000 
		// features for it.
1001 
		// Once that is done, debug(...) can pass the c_str() version of that string
1002 
		// to ad_printf(...) so that I don't have to make an explicit ad_printf(...)
1003 
		// invocation for each debug(...) invocation
1004 
		debug("Key pressed, unicode: 0x%04x (%s), keyCode: 0x%05x (%s), scanCode: 0x%03x (%s), keyName: %s\n",
1005 
		      keyEvent.getUnicode(),
1006 
		      codepointToUtf8(keyEvent.getUnicode()).c_str(),
1007 
		      keyEvent.getKeyCode(),
1008 
		      SDL_GetKeyName(keyEvent.getKeyCode()),
1009 
		      keyEvent.getScanCode(),
1010 
		      SDL_GetScancodeName(keyEvent.getScanCode()),
1011 
		      key.toString().c_str());
1012 
	} else {
1013 
		debug("Key released, keyCode: 0x%05x (%s), scanCode: 0x%03x (%s), keyName: %s\n",
1014 
		      keyEvent.getKeyCode(),
1015 
		      SDL_GetKeyName(keyEvent.getKeyCode()),
1016 
		      keyEvent.getScanCode(),
1017 
		      SDL_GetScancodeName(keyEvent.getScanCode()),
1018 
		      key.toString().c_str());
1019 
	}
1020
1021 
	// Process dead keys.
1022 
	if (mode == KeyboardSettings::MappingMode::CHARACTER) {
1023 
		for (auto n : xrange(3)) {
1024 
			if (key.sym.sym == keyboardSettings.getDeadKeyHostKey(n)) {
1025 
				UnicodeKeymap::KeyInfo deadKey = unicodeKeymap.getDeadKey(n);
1026 
				if (deadKey.isValid()) {
1027 
					updateKeyMatrix(time, down, deadKey.pos);
1028 
					return false;
1029 
				}
1030 
			}
1031 
		}
1032 
	}
1033
1034 
	if (key.sym.sym == SDLK_CAPSLOCK) {
1035 
		processCapslockEvent(time, down);
1036 
		return false;
1037 
	} else if (key.sym.sym == keyboardSettings.getCodeKanaHostKey()) {
1038 
		processCodeKanaChange(time, down);
1039 
		return false;
1040 
	} else if (key.sym.sym == SDLK_LALT) {
1041 
		processGraphChange(time, down);
1042 
		return false;
1043 
	// KEYPAD_RETURN and KEYPAD_COMMA exist at the same physical position on the host side.
1044 
	} else if ((key.sym.sym == SDLK_KP_ENTER) || (key.sym.sym == SDLK_KP_COMMA)) {
1045 
		processKeypadEnterKey(time, down);
1046 
		return false;
1047 
	} else {
1048 
		// To work around a Japanese keyboard Kanji mode bug. (Multi-character
1049 
		// input makes a keydown event without keyrelease message.)
1050 
		if (keyEvent.getScanCode() == SDL_SCANCODE_UNKNOWN) {
1051 
			return false;
1052 
		}
1053 
		if ((keyEvent.getScanCode() == SDL_SCANCODE_GRAVE) && (hostKeyMap == HostKeyMap::JP)) {
1054 
			// To work around a Japanese keyboard Kanji mode bug. (Multi-character
1055 
			// input makes a keydown event without keyrelease message.)
1056 
			return false;
1057 
		}
1058 
		return processKeyEvent(time, down, keyEvent);
1059 
	}
1060 
}
1061
1062 
/*
1063 
 * Process a change (up or down event) of the CODE/KANA key
1064 
 * It presses or releases the key in the MSX keyboard matrix
1065 
 * and changes the kana-lock state in case of a press
1066 
 */
1067 
void Keyboard::processCodeKanaChange(EmuTime time, bool down)
1068 
{
1069 
	if (down) {
1070 
		locksOn ^= KeyInfo::CODE_MASK;
1071 
	}
1072 
	updateKeyMatrix(time, down, modifierPos[KeyInfo::Modifier::CODE]);
1073 
}
1074
1075 
/*
1076 
 * Process a change (up or down event) of the GRAPH key
1077 
 * It presses or releases the key in the MSX keyboard matrix
1078 
 * and changes the graph-lock state in case of a press
1079 
 */
1080 
void Keyboard::processGraphChange(EmuTime time, bool down)
1081 
{
1082 
	if (down) {
1083 
		locksOn ^= KeyInfo::GRAPH_MASK;
1084 
	}
1085 
	updateKeyMatrix(time, down, modifierPos[KeyInfo::Modifier::GRAPH]);
1086 
}
1087
1088 
/*
1089 
 * Process a change (up or down event) of the CAPSLOCK key
1090 
 * It presses or releases the key in the MSX keyboard matrix
1091 
 * and changes the capslock state in case of a press
1092 
 */
1093 
void Keyboard::processCapslockEvent(EmuTime time, bool down)
1094 
{
1095 
	if (SANE_CAPSLOCK_BEHAVIOR) {
1096 
		debug("Changing CAPS lock state according to SDL request\n");
1097 
		if (down) {
1098 
			locksOn ^= KeyInfo::CAPS_MASK;
1099 
		}
1100 
		updateKeyMatrix(time, down, modifierPos[KeyInfo::Modifier::CAPS]);
1101 
	} else {
1102 
		debug("Pressing CAPS lock and scheduling a release\n");
1103 
		locksOn ^= KeyInfo::CAPS_MASK;
1104 
		updateKeyMatrix(time, true, modifierPos[KeyInfo::Modifier::CAPS]);
1105 
		setSyncPoint(time + EmuDuration::hz(10)); // 0.1s (in MSX time)
1106 
	}
1107 
}
1108
1109 
void Keyboard::executeUntil(EmuTime time)
1110 
{
1111 
	debug("Releasing CAPS lock\n");
1112 
	updateKeyMatrix(time, false, modifierPos[KeyInfo::Modifier::CAPS]);
1113 
}
1114
1115 
bool Keyboard::signalEvent(const Event& event)
1116 
{
1117 
	if (getType(event) == EventType::KEYMAP_CHANGED) {
1118 
		// check hostKeyMap at Next keyEvent
1119 
		hostKeyMap = HostKeyMap::UNKNOWN;
1120 
	}
1121 
	return false;
1122 
}
1123
1124 
void Keyboard::processKeypadEnterKey(EmuTime time, bool down)
1125 
{
1126 
	if (!hasKeypad && !keyboardSettings.getAlwaysEnableKeypad()) {
1127 
		// User entered on host keypad but this MSX model does not have one
1128 
		// Ignore the keypress/release
1129 
		return;
1130 
	}
1131 
	processSdlKey(time,
1132 
		keyboardSettings.getKpEnterMode() == KeyboardSettings::KpEnterMode::MSX_KP_COMMA ?
1133 
		SDLKey::create(SDLK_KP_COMMA, SDL_SCANCODE_KP_COMMA, down) :
1134 
		SDLKey::create(SDLK_KP_ENTER, SDL_SCANCODE_KP_ENTER, down));
1135 
}
1136
1137 
/*
1138 
 * Process an SDL key press/release event. It concerns a
1139 
 * special key (e.g. SHIFT, UP, DOWN, F1, F2, ...) that can not
1140 
 * be unambiguously derived from a unicode character;
1141 
 *  Map the SDL key to an equivalent MSX key press/release event
1142 
 */
1143 
void Keyboard::processSdlKey(EmuTime time, SDLKey key)
1144 
{
1145 
	auto process = [&](KeyMatrixPosition pos) {
1146 
		assert(pos.isValid());
1147 
		if (pos.getRow() == 11 && blockRow11) {
1148 
			// do not process row 11 if we have no Yes/No keys
1149 
			return;
1150 
		}
1151 
		updateKeyMatrix(time, key.down, pos);
1152 
	};
1153
1154 
	if (keyboardSettings.getMappingMode() == KeyboardSettings::MappingMode::POSITIONAL) {
1155 
		if ((key.sym.sym == SDLK_RIGHTBRACKET) && (key.sym.scancode == SDL_SCANCODE_BACKSLASH))
1156 
		{
1157 
			// host: Japanese keyboard "]" -> position as -> US keyboard "GRAVE"
1158 
			if (const auto* mapping = binary_find(scanCodeTab, SDL_SCANCODE_GRAVE, {}, &ScanCodeMsxMapping::hostScanCode)) {
1159 
				process(mapping->msx);
1160 
			}
1161 
		} else if (const auto* mapping = binary_find(scanCodeTab, key.sym.scancode, {}, &ScanCodeMsxMapping::hostScanCode)) {
1162 
			process(mapping->msx);
1163 
		}
1164 
	} else {
1165 
		if (const auto* mapping = binary_find(keyCodeTab, key.sym.sym, {}, &KeyCodeMsxMapping::hostKeyCode)) {
1166 
			process(mapping->msx);
1167 
		}
1168 
	}
1169 
}
1170
1171 
/*
1172 
 * Update the MSX keyboard matrix
1173 
 */
1174 
void Keyboard::updateKeyMatrix(EmuTime time, bool down, KeyMatrixPosition pos)
1175 
{
1176 
	if (!pos.isValid()) {
1177 
		// No such key.
1178 
		return;
1179 
	}
1180 
	if (down) {
1181 
		pressKeyMatrixEvent(time, pos);
1182 
		// Keep track of the MSX modifiers.
1183 
		// The MSX modifiers sometimes get overruled by the unicode character
1184 
		// processing, in which case the unicode processing must be able to
1185 
		// restore them to the real key-combinations pressed by the user.
1186 
		for (auto [i, mp] : enumerate(modifierPos)) {
1187 
			if (pos == mp) {
1188 
				msxModifiers &= uint8_t(~(1 << i));
1189 
			}
1190 
		}
1191 
	} else {
1192 
		releaseKeyMatrixEvent(time, pos);
1193 
		for (auto [i, mp] : enumerate(modifierPos)) {
1194 
			if (pos == mp) {
1195 
				msxModifiers |= 1 << i;
1196 
			}
1197 
		}
1198 
	}
1199 
}
1200
1201 
/*
1202 
 * Process an SDL key event;
1203 
 *  Check if it is a special key, in which case it can be directly
1204 
 *  mapped to the MSX matrix.
1205 
 *  Otherwise, retrieve the unicode character value for the event
1206 
 *  and map the unicode character to the key-combination that must
1207 
 *  be pressed to generate the equivalent character on the MSX
1208 
 * @return True iff a release event for the CODE/KANA key must be scheduled.
1209 
 */
1210 
bool Keyboard::processKeyEvent(EmuTime time, bool down, const KeyEvent& keyEvent)
1211 
{
1212 
	auto mode = keyboardSettings.getMappingMode();
1213
1214 
	auto keyCode = keyEvent.getKeyCode();
1215 
	auto scanCode = keyEvent.getScanCode();
1216 
	auto key = keyEvent.getKey();
1217
1218 
	bool isOnKeypad =
1219 
		(SDLK_KP_1 <= keyCode && keyCode <= SDLK_KP_0) || // note order is 1-9,0
1220 
		(keyCode == one_of(SDLK_KP_PERIOD, SDLK_KP_DIVIDE, SDLK_KP_MULTIPLY,
1221 
		                   SDLK_KP_MINUS,  SDLK_KP_PLUS));
1222
1223 
	if (isOnKeypad && !hasKeypad &&
1224 
	    !keyboardSettings.getAlwaysEnableKeypad()) {
1225 
		// User entered on host keypad but this MSX model does not have one
1226 
		// Ignore the keypress/release
1227 
		return false;
1228 
	}
1229 
#ifdef __APPLE__
1230 
	bool positional = mode == KeyboardSettings::MappingMode::POSITIONAL;
1231 
	if ((key.sym.mod & KMOD_GUI) &&
1232 
	    (( positional && (keyEvent.getScanCode() == SDL_SCANCODE_I)) ||
1233 
	     (!positional && (keyCode == SDLK_i)))) {
1234 
		// Apple keyboards don't have an Insert key, use Cmd+I as an alternative.
1235 
		keyCode = SDLK_INSERT;
1236 
		key.sym.sym = SDLK_INSERT;
1237 
		key.sym.scancode = SDL_SCANCODE_INSERT;
1238 
		key.sym.mod &= ~KMOD_GUI;
1239 
		key.sym.unused = 0; // unicode
1240 
	}
1241 
#endif
1242
1243 
	if (down) {
1244 
		UnicodeKeymap::KeyInfo keyInfo;
1245 
		unsigned unicode;
1246 
		if (isOnKeypad ||
1247 
		    mode == one_of(KeyboardSettings::MappingMode::KEY,
1248 
		                   KeyboardSettings::MappingMode::POSITIONAL)) {
1249 
			// User entered a key on numeric keypad or the driver is in
1250 
			// KEY/POSITIONAL mapping mode.
1251 
			// First option (keypad) maps to same unicode as some other key
1252 
			// combinations (e.g. digit on main keyboard or TAB/DEL).
1253 
			// Use unicode to handle the more common combination and use direct
1254 
			// matrix to matrix mapping for the exceptional cases (keypad).
1255 
			unicode = 0;
1256 
		} else {
1257 
			unicode = keyEvent.getUnicode();
1258 
			if ((unicode < 0x20) || ((0x7F <= unicode) && (unicode < 0xA0))) {
1259 
				// Control character in C0 or C1 range.
1260 
				// Use SDL's interpretation instead.
1261 
				unicode = 0;
1262 
			} else if (utf8::is_pua(unicode)) {
1263 
				// Code point in Private Use Area: undefined by Unicode,
1264 
				// so we rely on SDL's interpretation instead.
1265 
				// For example the Mac's cursor keys are in this range.
1266 
				unicode = 0;
1267 
			} else {
1268 
				keyInfo = unicodeKeymap.get(unicode);
1269 
				if (!keyInfo.isValid()) {
1270 
					// Unicode does not exist in our mapping; try to process
1271 
					// the key using its keycode instead.
1272 
					unicode = 0;
1273 
				}
1274 
			}
1275 
		}
1276
1277 
		// Remember which unicode character is currently derived
1278 
		// from this SDL key. It must be stored here (during key-press)
1279 
		// because during key-release SDL never returns the unicode
1280 
		// value (it always returns the value 0). But we must know
1281 
		// the unicode value in order to be able to perform the correct
1282 
		// key-combination-release in the MSX
1283 
		if (auto it = std::ranges::lower_bound(lastUnicodeForScancode, scanCode, {}, &std::pair<int32_t, uint32_t>::first);
1284 
		    (it != lastUnicodeForScancode.end()) && (it->first == scanCode)) {
1285 
			// after a while we can overwrite existing elements, and
1286 
			// then we stop growing/reallocating this vector
1287 
			it->second = unicode;
1288 
		} else {
1289 
			// insert new element (in the right location)
1290 
			lastUnicodeForScancode.emplace(it, scanCode, unicode);
1291 
		}
1292
1293 
		if (unicode == 0) {
1294 
			// It was an ambiguous key (numeric key-pad, CTRL+character)
1295 
			// or a special key according to SDL (like HOME, INSERT, etc)
1296 
			// or a first keystroke of a composed key
1297 
			// (e.g. altr-gr + = on azerty keyboard) or driver is in
1298 
			// direct SDL mapping mode:
1299 
			// Perform direct SDL matrix to MSX matrix mapping
1300 
			// But only when it is not a first keystroke of a
1301 
			// composed key
1302 
			if (!(key.sym.mod & KMOD_MODE)) {
1303 
				processSdlKey(time, key);
1304 
			}
1305 
			return false;
1306 
		} else {
1307 
			// It is a unicode character; map it to the right key-combination
1308 
			return pressUnicodeByUser(time, keyInfo, unicode, true);
1309 
		}
1310 
	} else {
1311 
		// key was released
1312 
		auto it = std::ranges::lower_bound(lastUnicodeForScancode, scanCode, {}, &std::pair<int32_t, uint32_t>::first);
1313 
		unsigned unicode = ((it != lastUnicodeForScancode.end()) && (it->first == scanCode))
1314 
		                 ? it->second // get the unicode that was derived from this key
1315 
		                 : 0;
1316 
		if (unicode == 0) {
1317 
			// It was a special key, perform matrix to matrix mapping
1318 
			// But only when it is not a first keystroke of a
1319 
			// composed key
1320 
			if (!(key.sym.mod & KMOD_MODE)) {
1321 
				processSdlKey(time, key);
1322 
			}
1323 
		} else {
1324 
			// It was a unicode character; map it to the right key-combination
1325 
			pressUnicodeByUser(time, unicodeKeymap.get(unicode), unicode, false);
1326 
		}
1327 
		return false;
1328 
	}
1329 
}
1330
1331 
void Keyboard::processCmd(Interpreter& interp, std::span<const TclObject> tokens, bool up)
1332 
{
1333 
	unsigned row  = tokens[1].getInt(interp);
1334 
	unsigned mask = tokens[2].getInt(interp);
1335 
	if (row >= KeyMatrixPosition::NUM_ROWS) {
1336 
		throw CommandException("Invalid row");
1337 
	}
1338 
	if (mask >= 256) {
1339 
		throw CommandException("Invalid mask");
1340 
	}
1341 
	if (up) {
1342 
		cmdKeyMatrix[row] |= narrow_cast<uint8_t>(mask);
1343 
	} else {
1344 
		cmdKeyMatrix[row] &= narrow_cast<uint8_t>(~mask);
1345 
	}
1346 
	keysChanged = true;
1347 
}
1348
1349 
/*
1350 
 * This routine processes unicode characters. It maps a unicode character
1351 
 * to the correct key-combination on the MSX.
1352 
 *
1353 
 * There are a few caveats with respect to the MSX and Host modifier keys
1354 
 * that you must be aware about if you want to understand why the routine
1355 
 * works as it works.
1356 
 *
1357 
 * Row 6 of the MSX keyboard matrix contains the MSX modifier keys:
1358 
 *   CTRL, CODE, GRAPH and SHIFT
1359 
 *
1360 
 * The SHIFT key is also a modifier key on the host machine. However, the
1361 
 * SHIFT key behaviour can differ between HOST and MSX for all 'special'
1362 
 * characters (anything but A-Z).
1363 
 * For example, on AZERTY host keyboard, user presses SHIFT+& to make the '1'
1364 
 * On MSX QWERTY keyboard, the same key-combination leads to '!'.
1365 
 * So this routine must not only PRESS the SHIFT key when required according
1366 
 * to the unicode mapping table but it must also RELEASE the SHIFT key for all
1367 
 * these special keys when the user PRESSES the key/character.
1368 
 *
1369 
 * On the other hand, for A-Z, this routine must not touch the SHIFT key at all.
1370 
 * Otherwise it might give strange behaviour when CAPS lock is on (which also
1371 
 * acts as a key-modifier for A-Z). The routine can rely on the fact that
1372 
 * SHIFT+A-Z behaviour is the same on all host and MSX keyboards. It is
1373 
 * approximately the only part of keyboards that is de-facto standardized :-)
1374 
 *
1375 
 * For the other modifiers (CTRL, CODE and GRAPH), the routine must be able to
1376 
 * PRESS them when required but there is no need to RELEASE them during
1377 
 * character press. On the contrary; the host keys that map to CODE and GRAPH
1378 
 * do not work as modifiers on the host itself, so if the routine would release
1379 
 * them, it would give wrong result.
1380 
 * For example, 'ALT-A' on Host will lead to unicode character 'a', just like
1381 
 * only pressing the 'A' key. The MSX however must know about the difference.
1382 
 *
1383 
 * As a reminder: here is the build-up of row 6 of the MSX key matrix
1384 
 *              7    6     5     4    3      2     1    0
1385 
 * row  6   |  F3 |  F2 |  F1 | code| caps|graph| ctrl|shift|
1386 
 */
1387 
bool Keyboard::pressUnicodeByUser(
1388 
		EmuTime time, UnicodeKeymap::KeyInfo keyInfo, unsigned unicode,
1389 
		bool down)
1390 
{
1391 
	bool insertCodeKanaRelease = false;
1392 
	if (down) {
1393 
		if ((needsLockToggle(keyInfo) & KeyInfo::CODE_MASK) &&
1394 
				keyboardSettings.getAutoToggleCodeKanaLock() &&
1395 
				!isKeyMatrixPressed(modifierPos[KeyInfo::Modifier::CODE])) {
1396 
			// Code Kana locks, is in wrong state and must be auto-toggled:
1397 
			// Toggle it by pressing the lock key and scheduling a
1398 
			// release event.
1399 
			// Only do this when the CODE/KANA key is currently released,
1400 
			// because only then does the MSX see a new key-press edge and
1401 
			// actually toggle its lock. While the user is holding the host
1402 
			// CODE/KANA key (typically AltGr, which on many host layouts is
1403 
			// needed to type '@', '#', ...) the key is already down, so the
1404 
			// MSX would toggle nothing while we did flip 'locksOn' here,
1405 
			// leaving us permanently out of sync with the MSX. In that case
1406 
			// simply type the character with CODE/KANA held, like a real MSX.
1407 
			locksOn ^= KeyInfo::CODE_MASK;
1408 
			pressKeyMatrixEvent(time, modifierPos[KeyInfo::Modifier::CODE]);
1409 
			insertCodeKanaRelease = true;
1410 
		} else {
1411 
			// Press the character key and related modifiers
1412 
			// Ignore the CODE key in case that Code Kana locks
1413 
			// (e.g. do not press it).
1414 
			// Ignore the GRAPH key in case that Graph locks
1415 
			// Always ignore CAPSLOCK mask (assume that user will
1416 
			// use real CAPS lock to switch/ between hiragana and
1417 
			// katakana on japanese model)
1418 
			pressKeyMatrixEvent(time, keyInfo.pos);
1419
1420 
			uint8_t modMask = keyInfo.modMask & ~modifierIsLock;
1421 
			if (('A' <= unicode && unicode <= 'Z') || ('a' <= unicode && unicode <= 'z')) {
1422 
				// For a-z and A-Z, leave SHIFT unchanged, this to cater
1423 
				// for difference in behaviour between host and emulated
1424 
				// machine with respect to how the combination of CAPSLOCK
1425 
				// and SHIFT is interpreted for these characters.
1426 
				modMask &= ~KeyInfo::SHIFT_MASK;
1427 
			} else {
1428 
				// Release SHIFT if our character does not require it.
1429 
				if (~modMask & KeyInfo::SHIFT_MASK) {
1430 
					releaseKeyMatrixEvent(time, modifierPos[KeyInfo::Modifier::SHIFT]);
1431 
				}
1432 
			}
1433 
			// Press required modifiers for our character.
1434 
			// Note that these modifiers are only pressed, never released.
1435 
			for (auto [i, mp] : enumerate(modifierPos)) {
1436 
				if ((modMask >> i) & 1) {
1437 
					pressKeyMatrixEvent(time, mp);
1438 
				}
1439 
			}
1440 
		}
1441 
	} else {
1442 
		releaseKeyMatrixEvent(time, keyInfo.pos);
1443
1444 
		// Restore non-lock modifier keys.
1445 
		for (auto [i, mp] : enumerate(modifierPos)) {
1446 
			if (!((modifierIsLock >> i) & 1)) {
1447 
				// Do not simply unpress graph, ctrl, code and shift but
1448 
				// restore them to the values currently pressed by the user.
1449 
				if ((msxModifiers >> i) & 1) {
1450 
					releaseKeyMatrixEvent(time, mp);
1451 
				} else {
1452 
					pressKeyMatrixEvent(time, mp);
1453 
				}
1454 
			}
1455 
		}
1456 
	}
1457 
	keysChanged = true;
1458 
	return insertCodeKanaRelease;
1459 
}
1460
1461 
/*
1462 
 * Press an ASCII character. It is used by the 'Insert characters'
1463 
 * function that is exposed to the console.
1464 
 * The characters are inserted in a separate keyboard matrix, to prevent
1465 
 * interference with the keypresses of the user on the MSX itself.
1466 
 *
1467 
 * @returns:
1468 
 *   zero  : handling this character is done
1469 
 * non-zero: typing this character needs additional actions
1470 
 *    bits 0-4: release these modifiers and call again
1471 
 *    bit   7 : simply call again (used by SHIFT+GRAPH heuristic)
1472 
 */
1473 
uint8_t Keyboard::pressAscii(unsigned unicode, bool down)
1474 
{
1475 
	uint8_t releaseMask = 0;
1476 
	UnicodeKeymap::KeyInfo keyInfo = unicodeKeymap.get(unicode);
1477 
	if (!keyInfo.isValid()) {
1478 
		return releaseMask;
1479 
	}
1480 
	uint8_t modMask = keyInfo.modMask & ~modifierIsLock;
1481 
	if (down) {
1482 
		// check for modifier toggles
1483 
		uint8_t toggleLocks = needsLockToggle(keyInfo);
1484 
		for (auto [i, mp] : enumerate(modifierPos)) {
1485 
			if ((toggleLocks >> i) & 1) {
1486 
				debug("Toggling lock %d\n", i);
1487 
				locksOn ^= 1 << i;
1488 
				releaseMask |= 1 << i;
1489 
				typeKeyMatrix[mp.getRow()] &= uint8_t(~mp.getMask());
1490 
			}
1491 
		}
1492 
		if (releaseMask == 0) {
1493 
			debug("Key pasted, unicode: 0x%04x, row: %02d, col: %d, modMask: %02x\n",
1494 
			      unicode, keyInfo.pos.getRow(), keyInfo.pos.getColumn(), modMask);
1495 
			// Workaround MSX-BIOS(?) bug/limitation:
1496 
			//
1497 
			// Under these conditions:
1498 
			// - Typing a graphical MSX character 00-1F (such a char 'x' gets
1499 
			//   printed as chr$(1) followed by chr$(x+64)).
1500 
			// - Typing this character requires pressing SHIFT+GRAPH and one
1501 
			//   'regular' key.
1502 
			// - And all 3 keys are immediately pressed simultaneously.
1503 
			// Then, from time to time, instead of the intended character 'x'
1504 
			// (00-1F), the wrong character 'x+64' gets printed.
1505 
			// When first SHIFT+GRAPH is pressed, and only one frame later the
1506 
			// other keys is pressed (additionally), this problem seems to
1507 
			// disappear.
1508 
			//
1509 
			// After implementing the above we found that a similar problem
1510 
			// occurs when:
1511 
			// - a GRAPH + <x> (without SHIFT) key combo is typed
1512 
			// - immediately after a key combo with GRAPH + SHIFT + <x>.
1513 
			// For example:
1514 
			//   type "\u2666\u266a"
1515 
			// from time to time 2nd character got wrongly typed as a
1516 
			// 'M' (instead of a musical note symbol). But typing a sequence
1517 
			// of \u266a chars without a preceding \u2666 just works.
1518 
			//
1519 
			// To fix both these problems (and possibly still undiscovered
1520 
			// variations), I'm now extending the workaround to all characters
1521 
			// that are typed via a key combination that includes GRAPH.
1522 
			if (modMask & KeyInfo::GRAPH_MASK) {
1523 
				auto isPressed = [&](auto& key) {
1524 
					return (typeKeyMatrix[key.getRow()] & key.getMask()) == 0;
1525 
				};
1526 
				if (!isPressed(modifierPos[KeyInfo::Modifier::GRAPH])) {
1527 
					// GRAPH not yet pressed ->
1528 
					//  first press it before adding the non-modifier key
1529 
					releaseMask = TRY_AGAIN;
1530 
				}
1531 
			}
1532 
			// press modifiers
1533 
			for (auto [i, mp] : enumerate(modifierPos)) {
1534 
				if ((modMask >> i) & 1) {
1535 
					typeKeyMatrix[mp.getRow()] &= uint8_t(~mp.getMask());
1536 
				}
1537 
			}
1538 
			if (releaseMask == 0) {
1539 
				// press key
1540 
				typeKeyMatrix[keyInfo.pos.getRow()] &= uint8_t(~keyInfo.pos.getMask());
1541 
			}
1542 
		}
1543 
	} else {
1544 
		typeKeyMatrix[keyInfo.pos.getRow()] |= keyInfo.pos.getMask();
1545 
		for (auto [i, mp] : enumerate(modifierPos)) {
1546 
			if ((modMask >> i) & 1) {
1547 
				typeKeyMatrix[mp.getRow()] |= mp.getMask();
1548 
			}
1549 
		}
1550 
	}
1551 
	keysChanged = true;
1552 
	return releaseMask;
1553 
}
1554
1555 
/*
1556 
 * Press a lock key. It is used by the 'Insert characters'
1557 
 * function that is exposed to the console.
1558 
 * The characters are inserted in a separate keyboard matrix, to prevent
1559 
 * interference with the keypresses of the user on the MSX itself
1560 
 */
1561 
void Keyboard::pressLockKeys(uint8_t lockKeysMask, bool down)
1562 
{
1563 
	for (auto [i, mp] : enumerate(modifierPos)) {
1564 
		if ((lockKeysMask >> i) & 1) {
1565 
			if (down) {
1566 
				// press lock key
1567 
				typeKeyMatrix[mp.getRow()] &= uint8_t(~mp.getMask());
1568 
			} else {
1569 
				// release lock key
1570 
				typeKeyMatrix[mp.getRow()] |= mp.getMask();
1571 
			}
1572 
		}
1573 
	}
1574 
	keysChanged = true;
1575 
}
1576
1577 
/*
1578 
 * Check if there are common keys in the MSX matrix for
1579 
 * two different unicodes.
1580 
 * It is used by the 'insert keys' function to determine if it has to wait for
1581 
 * a short while after releasing a key (to enter a certain character) before
1582 
 * pressing the next key (to enter the next character)
1583 
 */
1584 
bool Keyboard::commonKeys(unsigned unicode1, unsigned unicode2) const
1585 
{
1586 
	// get row / mask of key (note: ignore modifier mask)
1587 
	auto keyPos1 = unicodeKeymap.get(unicode1).pos;
1588 
	auto keyPos2 = unicodeKeymap.get(unicode2).pos;
1589
1590 
	return keyPos1 == keyPos2 && keyPos1.isValid();
1591 
}
1592
1593 
void Keyboard::debug(const char* format, ...) const
1594 
{
1595 
	if (keyboardSettings.getTraceKeyPresses()) {
1596 
		va_list args;
1597 
		va_start(args, format);
1598 
		vfprintf(stderr, format, args);
1599 
		va_end(args);
1600 
	}
1601 
}
1602
1603
1604 
// class KeyMatrixUpCmd
1605
1606 
Keyboard::KeyMatrixUpCmd::KeyMatrixUpCmd(
1607 
		CommandController& commandController_,
1608 
		StateChangeDistributor& stateChangeDistributor_,
1609 
		Scheduler& scheduler_)
1610 
	: RecordedCommand(commandController_, stateChangeDistributor_,
1611 
		scheduler_, "keymatrixup")
1612 
{
1613 
}
1614
1615 
void Keyboard::KeyMatrixUpCmd::execute(
1616 
	std::span<const TclObject> tokens, TclObject& /*result*/, EmuTime /*time*/)
1617 
{
1618 
	checkNumArgs(tokens, 3, Prefix{1}, "row mask");
1619 
	auto& keyboard = OUTER(Keyboard, keyMatrixUpCmd);
1620 
	keyboard.processCmd(getInterpreter(), tokens, true);
1621 
}
1622
1623 
std::string Keyboard::KeyMatrixUpCmd::help(std::span<const TclObject> /*tokens*/) const
1624 
{
1625 
	return "keymatrixup <row> <bitmask>  release a key in the keyboard matrix\n";
1626 
}
1627
1628
1629 
// class KeyMatrixDownCmd
1630
1631 
Keyboard::KeyMatrixDownCmd::KeyMatrixDownCmd(CommandController& commandController_,
1632 
		StateChangeDistributor& stateChangeDistributor_,
1633 
		Scheduler& scheduler_)
1634 
	: RecordedCommand(commandController_, stateChangeDistributor_,
1635 
		scheduler_, "keymatrixdown")
1636 
{
1637 
}
1638
1639 
void Keyboard::KeyMatrixDownCmd::execute(std::span<const TclObject> tokens,
1640 
                                         TclObject& /*result*/, EmuTime /*time*/)
1641 
{
1642 
	checkNumArgs(tokens, 3, Prefix{1}, "row mask");
1643 
	auto& keyboard = OUTER(Keyboard, keyMatrixDownCmd);
1644 
	keyboard.processCmd(getInterpreter(), tokens, false);
1645 
}
1646
1647 
std::string Keyboard::KeyMatrixDownCmd::help(std::span<const TclObject> /*tokens*/) const
1648 
{
1649 
	return "keymatrixdown <row> <bitmask>  press a key in the keyboard matrix\n";
1650 
}
1651
1652
1653 
// class MsxKeyEventQueue
1654
1655 
Keyboard::MsxKeyEventQueue::MsxKeyEventQueue(
1656 
		Scheduler& scheduler_, Interpreter& interp_)
1657 
	: Schedulable(scheduler_)
1658 
	, interp(interp_)
1659 
{
1660 
}
1661
1662 
void Keyboard::MsxKeyEventQueue::process_asap(
1663 
	EmuTime time, const Event& event)
1664 
{
1665 
	bool processImmediately = eventQueue.empty();
1666 
	eventQueue.push_back(event);
1667 
	if (processImmediately) {
1668 
		executeUntil(time);
1669 
	}
1670 
}
1671
1672 
void Keyboard::MsxKeyEventQueue::clear()
1673 
{
1674 
	eventQueue.clear();
1675 
	removeSyncPoint();
1676 
}
1677
1678 
void Keyboard::MsxKeyEventQueue::executeUntil(EmuTime time)
1679 
{
1680 
	// Get oldest event from the queue and process it
1681 
	const Event& event = eventQueue.front();
1682 
	auto& keyboard = OUTER(Keyboard, msxKeyEventQueue);
1683 
	bool insertCodeKanaRelease = keyboard.processQueuedEvent(event, time);
1684
1685 
	if (insertCodeKanaRelease) {
1686 
		// The processor pressed the CODE/KANA key
1687 
		// Schedule a CODE/KANA release event, to be processed
1688 
		// before any of the other events in the queue
1689 
		eventQueue.emplace_front(KeyUpEvent::create(keyboard.keyboardSettings.getCodeKanaHostKey()));
1690 
	} else {
1691 
		// The event has been completely processed. Delete it from the queue
1692 
		if (!eventQueue.empty()) {
1693 
			eventQueue.pop_front();
1694 
		} else {
1695 
			// it's possible clear() has been called
1696 
			// (indirectly from keyboard.processQueuedEvent())
1697 
		}
1698 
	}
1699
1700 
	if (!eventQueue.empty()) {
1701 
		// There are still events. Process them in 1/15s from now
1702 
		setSyncPoint(time + EmuDuration::hz(15));
1703 
	}
1704 
}
1705
1706
1707 
// class KeyInserter
1708
1709 
Keyboard::KeyInserter::KeyInserter(
1710 
		CommandController& commandController_,
1711 
		StateChangeDistributor& stateChangeDistributor_,
1712 
		Scheduler& scheduler_)
1713 
	: RecordedCommand(commandController_, stateChangeDistributor_,
1714 
		scheduler_, "type_via_keyboard")
1715 
	, Schedulable(scheduler_)
1716 
{
1717 
}
1718
1719 
void Keyboard::KeyInserter::execute(
1720 
	std::span<const TclObject> tokens, TclObject& /*result*/, EmuTime /*time*/)
1721 
{
1722 
	checkNumArgs(tokens, AtLeast{2}, "?-release? ?-freq hz? ?-cancel? text");
1723
1724 
	bool cancel = false;
1725 
	releaseBeforePress = false;
1726 
	typingFrequency = 15;
1727 
	std::array info = {
1728 
		flagArg("-cancel", cancel),
1729 
		flagArg("-release", releaseBeforePress),
1730 
		valueArg("-freq", typingFrequency),
1731 
	};
1732 
	auto arguments = parseTclArgs(getInterpreter(), tokens.subspan(1), info);
1733
1734 
	if (typingFrequency <= 0) {
1735 
		throw CommandException("Wrong argument for -freq (should be a positive number)");
1736 
	}
1737 
	if (cancel) {
1738 
		text_utf8.clear();
1739 
		return;
1740 
	}
1741
1742 
	if (arguments.size() != 1) throw SyntaxError();
1743
1744 
	type(arguments[0].getString());
1745 
}
1746
1747 
std::string Keyboard::KeyInserter::help(std::span<const TclObject> /*tokens*/) const
1748 
{
1749 
	return "Type a string in the emulated MSX.\n"
1750 
	       "Use -release to make sure the keys are always released before typing new ones (necessary for some game input routines, but in general, this means typing is twice as slow).\n"
1751 
	       "Use -freq to tweak how fast typing goes and how long the keys will be pressed (and released in case -release was used). Keys will be typed at the given frequency and will remain pressed/released for 1/freq seconds\n"
1752 
	       "Use -cancel to cancel a (long) in-progress type command.";
1753 
}
1754
1755 
void Keyboard::KeyInserter::tabCompletion(std::vector<std::string>& tokens) const
1756 
{
1757 
	using namespace std::literals;
1758 
	static constexpr std::array options = {"-release"sv, "-freq"sv};
1759 
	completeString(tokens, options);
1760 
}
1761
1762 
void Keyboard::KeyInserter::type(std::string_view str)
1763 
{
1764 
	if (str.empty()) {
1765 
		return;
1766 
	}
1767 
	const auto& keyboard = OUTER(Keyboard, keyTypeCmd);
1768 
	oldLocksOn = keyboard.locksOn;
1769 
	if (text_utf8.empty()) {
1770 
		reschedule(getCurrentTime());
1771 
	}
1772 
	text_utf8.append(str.data(), str.size());
1773 
}
1774
1775 
void Keyboard::KeyInserter::executeUntil(EmuTime time)
1776 
{
1777 
	auto& keyboard = OUTER(Keyboard, keyTypeCmd);
1778 
	if (lockKeysMask != 0) {
1779 
		// release CAPS and/or Code/Kana Lock keys
1780 
		keyboard.pressLockKeys(lockKeysMask, false);
1781 
	}
1782 
	if (releaseLast) {
1783 
		keyboard.pressAscii(last, false); // release previous character
1784 
	}
1785 
	if (text_utf8.empty()) {
1786 
		releaseLast = false;
1787 
		keyboard.debug("Restoring locks: %02X -> %02X\n", keyboard.locksOn, oldLocksOn);
1788 
		uint8_t diff = oldLocksOn ^ keyboard.locksOn;
1789 
		lockKeysMask = diff;
1790 
		if (diff != 0) {
1791 
			// press CAPS, GRAPH and/or Code/Kana Lock keys
1792 
			keyboard.locksOn ^= diff;
1793 
			keyboard.pressLockKeys(diff, true);
1794 
			reschedule(time);
1795 
		}
1796 
		return;
1797 
	}
1798
1799 
	try {
1800 
		auto it = begin(text_utf8);
1801 
		unsigned current = utf8::next(it, end(text_utf8));
1802 
		if (releaseLast && (releaseBeforePress || keyboard.commonKeys(last, current))) {
1803 
			// There are common keys between previous and current character
1804 
			// Do not immediately press again but give MSX the time to notice
1805 
			// that the keys have been released
1806 
			releaseLast = false;
1807 
		} else {
1808 
			// All keys in current char differ from previous char. The new keys
1809 
			// can immediately be pressed
1810 
			lockKeysMask = keyboard.pressAscii(current, true);
1811 
			if (lockKeysMask == 0) {
1812 
				last = current;
1813 
				releaseLast = true;
1814 
				text_utf8.erase(begin(text_utf8), it);
1815 
			} else if (lockKeysMask & TRY_AGAIN) {
1816 
				lockKeysMask &= ~TRY_AGAIN;
1817 
				releaseLast = false;
1818 
			} else if (releaseBeforePress) {
1819 
				releaseLast = true;
1820 
			}
1821 
		}
1822 
		reschedule(time);
1823 
	} catch (std::exception&) {
1824 
		// utf8 encoding error
1825 
		text_utf8.clear();
1826 
	}
1827 
}
1828
1829 
void Keyboard::KeyInserter::reschedule(EmuTime time)
1830 
{
1831 
	setSyncPoint(time + EmuDuration::hz(typingFrequency));
1832 
}
1833
1834
1835 
// Commands for conversion between msxcode <-> unicode.
1836
1837 
Keyboard::Msxcode2UnicodeCmd::Msxcode2UnicodeCmd(CommandController& commandController_)
1838 
	: Command(commandController_, "msxcode2unicode")
1839 
{
1840 
}
1841
1842 
void Keyboard::Msxcode2UnicodeCmd::execute(std::span<const TclObject> tokens, TclObject& result)
1843 
{
1844 
	checkNumArgs(tokens, Between{2, 3}, "msx-string ?fallback?");
1845
1846 
	auto& interp = getInterpreter();
1847 
	const auto& keyboard = OUTER(Keyboard, msxcode2UnicodeCmd);
1848 
	const auto& msxChars = keyboard.unicodeKeymap.getMsxChars();
1849
1850 
	auto msx = tokens[1].getBinary(getInterpreter());
1851 
	auto fallback = [&] -> std::function<uint32_t(uint8_t)> {
1852 
		if (tokens.size() < 3) {
1853 
			// If no fallback is given use space as replacement character
1854 
			return [](uint8_t) { return uint32_t(' '); };
1855 
		} else if (auto i = tokens[2].getOptionalInt()) {
1856 
			// If an integer is given use that as a unicode character number
1857 
			return [i = *i](uint8_t) { return uint32_t(i); };
1858 
		} else {
1859 
			// Otherwise use the given string as the name of a Tcl proc,
1860 
			// That proc is (possibly later) invoked with a msx-character as input,
1861 
			// and it should return the replacement unicode character number.
1862 
			return [&](uint8_t m) {
1863 
				TclObject cmd{TclObject::MakeListTag{}, tokens[2], m};
1864 
				return uint32_t(cmd.executeCommand(interp).getInt(interp));
1865 
			};
1866 
		}
1867 
	}();
1868
1869 
	result = msxChars.msxToUtf8(msx, fallback);
1870 
}
1871
1872 
std::string Keyboard::Msxcode2UnicodeCmd::help(std::span<const TclObject> /*tokens*/) const
1873 
{
1874 
	return "msxcode2unicode <msx-string> [<fallback>]\n"
1875 
	       "returns a unicode string converted from an MSX-string, i.e. a string based on\n"
1876 
	       "MSX character codes.\n"
1877 
	       "The optional fallback used for each character that cannot be mapped for the\n"
1878 
	       "current MSX model can be:\n"
1879 
	       "- omitted: then space will be used as fallback character.\n"
1880 
	       "- an integer number: then this number will be used as unicode point to be the\n"
1881 
	       "  the fallback character.\n"
1882 
	       "- a Tcl proc, which expects one input character and must return one unicode\n"
1883 
	       "  point.";
1884 
}
1885
1886
1887 
Keyboard::Unicode2MsxcodeCmd::Unicode2MsxcodeCmd(CommandController& commandController_)
1888 
	: Command(commandController_, "unicode2msxcode")
1889 
{
1890 
}
1891
1892 
void Keyboard::Unicode2MsxcodeCmd::execute(std::span<const TclObject> tokens, TclObject& result)
1893 
{
1894 
	checkNumArgs(tokens, Between{2, 3}, "unicode-string ?fallback?");
1895
1896 
	auto& interp = getInterpreter();
1897 
	const auto& keyboard = OUTER(Keyboard, unicode2MsxcodeCmd);
1898 
	const auto& msxChars = keyboard.unicodeKeymap.getMsxChars();
1899
1900 
	const auto& unicode = tokens[1].getString();
1901 
	auto fallback = [&] -> std::function<uint8_t(uint32_t)> {
1902 
		if (tokens.size() < 3) {
1903 
			// If no fallback is given use space as replacement character
1904 
			return [](uint32_t) { return uint8_t(' '); };
1905 
		} else if (auto i = tokens[2].getOptionalInt()) {
1906 
			// If an integer is given use that as a MSX character number
1907 
			return [i = *i](uint32_t) { return uint8_t(i); };
1908 
		} else {
1909 
			// Otherwise use the given string as the name of a Tcl proc,
1910 
			// That proc is (possibly later) invoked with a unicode character as
1911 
			// input, and it should return the replacement MSX character number.
1912 
			return [&](uint32_t u) {
1913 
				TclObject cmd{TclObject::MakeListTag{}, tokens[2], u};
1914 
				return uint8_t(cmd.executeCommand(interp).getInt(interp));
1915 
			};
1916 
		}
1917 
	}();
1918
1919 
	result = msxChars.utf8ToMsx(unicode, fallback);
1920 
}
1921
1922 
std::string Keyboard::Unicode2MsxcodeCmd::help(std::span<const TclObject> /*tokens*/) const
1923 
{
1924 
	return "unicode2msxcode <unicode-string> [<fallback>]\n"
1925 
	       "returns an MSX string, i.e. a string based on MSX character codes, converted\n"
1926 
	       "from a unicode string.\n"
1927 
	       "The optional fallback used for each character that cannot be mapped for the\n"
1928 
	       "current MSX model can be:\n"
1929 
	       "- omitted: then space will be used as fallback character.\n"
1930 
	       "- an integer number: then this number will be used as MSX character number to\n"
1931 
	       "  to be the fallback character.\n"
1932 
	       "- a Tcl proc, which expects one input character and must return one MSX\n"
1933 
	       "  character number.";
1934 
}
1935
1936
1937 
/*
1938 
 * class CapsLockAligner
1939 
 *
1940 
 * It is used to align MSX CAPS lock status with the host CAPS lock status
1941 
 * during the reset of the MSX or after the openMSX window regains focus.
1942 
 *
1943 
 * It listens to the 'BOOT' event and schedules the real alignment
1944 
 * 2 seconds later. Reason is that it takes a while before the MSX
1945 
 * reset routine starts monitoring the MSX keyboard.
1946 
 *
1947 
 * For focus regain, the alignment is done immediately.
1948 
 */
1949 
Keyboard::CapsLockAligner::CapsLockAligner(
1950 
		EventDistributor& eventDistributor_,
1951 
		Scheduler& scheduler_)
1952 
	: Schedulable(scheduler_)
1953 
	, eventDistributor(eventDistributor_)
1954 
{
1955 
	for (auto type : {EventType::BOOT, EventType::WINDOW}) {
1956 
		eventDistributor.registerEventListener(type,  *this);
1957 
	}
1958 
}
1959
1960 
Keyboard::CapsLockAligner::~CapsLockAligner()
1961 
{
1962 
	for (auto type : {EventType::WINDOW, EventType::BOOT}) {
1963 
		eventDistributor.unregisterEventListener(type,  *this);
1964 
	}
1965 
}
1966
1967 
bool Keyboard::CapsLockAligner::signalEvent(const Event& event)
1968 
{
1969 
	if constexpr (!SANE_CAPSLOCK_BEHAVIOR) {
1970 
		// don't even try
1971 
		return false;
1972 
	}
1973
1974 
	if (state == IDLE) {
1975 
		EmuTime time = getCurrentTime();
1976 
		std::visit(overloaded{
1977 
			[&](const WindowEvent& e) {
1978 
				if (e.isMainWindow()) {
1979 
					const auto& evt = e.getSdlWindowEvent();
1980 
					if (evt.event == one_of(SDL_WINDOWEVENT_FOCUS_GAINED, SDL_WINDOWEVENT_FOCUS_LOST)) {
1981 
						alignCapsLock(time);
1982 
					}
1983 
				}
1984 
			},
1985 
			[&](const BootEvent&) {
1986 
				state = MUST_ALIGN_CAPSLOCK;
1987 
				setSyncPoint(time + EmuDuration::sec(2)); // 2s (MSX time)
1988 
			},
1989 
			[](const EventBase&) {
1990 
				// correct but causes excessive clang compile-time
1991 
				// UNREACHABLE;
1992 
			}
1993 
		}, event);
1994 
	}
1995 
	return false;
1996 
}
1997
1998 
void Keyboard::CapsLockAligner::executeUntil(EmuTime time)
1999 
{
2000 
	switch (state) {
2001 
		case MUST_ALIGN_CAPSLOCK:
2002 
			alignCapsLock(time);
2003 
			break;
2004 
		case MUST_DISTRIBUTE_KEY_RELEASE: {
2005 
			auto& keyboard = OUTER(Keyboard, capsLockAligner);
2006 
			auto event = KeyUpEvent::create(SDLK_CAPSLOCK);
2007 
			keyboard.msxEventDistributor.distributeEvent(event, time);
2008 
			state = IDLE;
2009 
			break;
2010 
		}
2011 
		default:
2012 
			UNREACHABLE;
2013 
	}
2014 
}
2015
2016 
/*
2017 
 * Align MSX caps lock state with host caps lock state
2018 
 * WARNING: This function assumes that the MSX will see and
2019 
 *          process the caps lock key press.
2020 
 *          If MSX misses the key press for whatever reason (e.g.
2021 
 *          interrupts are disabled), the caps lock state in this
2022 
 *          module will mismatch with the real MSX caps lock state
2023 
 * TODO: Find a solution for the above problem. For example by monitoring
2024 
 *       the MSX caps-lock LED state.
2025 
 */
2026 
void Keyboard::CapsLockAligner::alignCapsLock(EmuTime time)
2027 
{
2028 
	bool hostCapsLockOn = ((SDL_GetModState() & KMOD_CAPS) != 0);
2029 
	auto& keyboard = OUTER(Keyboard, capsLockAligner);
2030 
	if (bool(keyboard.locksOn & KeyInfo::CAPS_MASK) != hostCapsLockOn) {
2031 
		keyboard.debug("Resyncing host and MSX CAPS lock\n");
2032 
		// note: send out another event iso directly calling
2033 
		// processCapslockEvent() because we want this to be recorded
2034 
		auto event = KeyDownEvent::create(SDLK_CAPSLOCK);
2035 
		keyboard.msxEventDistributor.distributeEvent(event, time);
2036 
		keyboard.debug("Sending fake CAPS release\n");
2037 
		state = MUST_DISTRIBUTE_KEY_RELEASE;
2038 
		setSyncPoint(time + EmuDuration::hz(10)); // 0.1s (MSX time)
2039 
	} else {
2040 
		state = IDLE;
2041 
	}
2042 
}
2043
2044 
#if defined(_WIN32)
2045 
// class ImeManager
2046
2047 
/*  FOR WINDOWS:
2048 
 *  To work around a Japanese keyboard Kanji mode bug. (Multi-character
2049 
 *	input makes a keydown event without keyrelease message.)
2050 
 */
2051 
Keyboard::ImeManager::ImeManager(
2052 
		EventDistributor& eventDistributor_)
2053 
	: eventDistributor(eventDistributor_)
2054 
{
2055 
	eventDistributor.registerEventListener(EventType::WINDOW, *this);
2056 
	hImc = 0;
2057 
}
2058
2059 
Keyboard::ImeManager::~ImeManager()
2060 
{
2061 
	eventDistributor.unregisterEventListener(EventType::WINDOW, *this);
2062 
}
2063
2064 
/*
2065 
 *  disable IME at msx window.
2066 
 *  -> SDL_WINDOWEVENT_FOCUS_GAINED : IME OFF
2067 
 */
2068 
bool Keyboard::ImeManager::signalEvent(const Event& event)
2069 
{
2070 
	auto getWindow = [](const WindowEvent& e) -> HWND {
2071 
		SDL_SysWMinfo info;
2072 
		SDL_VERSION(&info.version);
2073 
		auto window = SDL_GetWindowFromID(e.getMainWindowId());
2074 
		if (SDL_GetWindowWMInfo(window, &info)) {
2075 
			return info.info.win.window;
2076 
		}
2077 
		return nullptr;
2078 
	};
2079
2080 
	std::visit(overloaded{
2081 
		[&](const WindowEvent& e) {
2082 
			if (e.isMainWindow()) {
2083 
				const auto& evt = e.getSdlWindowEvent();
2084 
				if (evt.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
2085 
					auto& keyboard = OUTER(Keyboard, imeManager);
2086 
					if (keyboard.keyboardSettings.getDisableIME()) {
2087 
						// disable IME when focus is gained
2088 
						auto hwnd = getWindow(e);
2089 
						if (hwnd) {
2090 
							hImc = ::ImmAssociateContext(hwnd, 0);
2091 
						}
2092 
					}
2093 
				}
2094 
				else if (evt.event == SDL_WINDOWEVENT_FOCUS_LOST) {
2095 
					auto hwnd = getWindow(e);
2096 
					if (hwnd && hImc) {
2097 
						hImc = ::ImmAssociateContext(hwnd, hImc);
2098 
					}
2099 
				}
2100 
			}
2101 
		},
2102 
		[](const EventBase&) { UNREACHABLE; }
2103 
	}, event);
2104
2105 
	return false;
2106 
}
2107 
#endif
2108
2109 
// class KeybDebuggable
2110
2111 
Keyboard::KeybDebuggable::KeybDebuggable(MSXMotherBoard& motherBoard_)
2112 
	: SimpleDebuggable(motherBoard_, "keymatrix", "MSX Keyboard Matrix",
2113 
	                   KeyMatrixPosition::NUM_ROWS)
2114 
{
2115 
}
2116
2117 
uint8_t Keyboard::KeybDebuggable::read(unsigned address)
2118 
{
2119 
	const auto& keyboard = OUTER(Keyboard, keybDebuggable);
2120 
	return keyboard.getKeys()[address];
2121 
}
2122
2123 
void Keyboard::KeybDebuggable::readBlock(unsigned start, std::span<uint8_t> output)
2124 
{
2125 
	const auto& keyboard = OUTER(Keyboard, keybDebuggable);
2126 
	copy_to_range(keyboard.getKeys().subspan(start, output.size()), output);
2127 
}
2128
2129 
void Keyboard::KeybDebuggable::write(unsigned /*address*/, uint8_t /*value*/)
2130 
{
2131 
	// ignore
2132 
}
2133
2134
2135 
template<typename Archive>
2136 
void Keyboard::KeyInserter::serialize(Archive& ar, unsigned /*version*/)
2137 
{
2138 
	ar.template serializeBase<Schedulable>(*this);
2139 
	ar.serialize("text", text_utf8,
2140 
	             "last", last,
2141 
	             "lockKeysMask", lockKeysMask,
2142 
	             "releaseLast", releaseLast);
2143
2144 
	bool oldCodeKanaLockOn, oldGraphLockOn, oldCapsLockOn;
2145 
	if constexpr (!Archive::IS_LOADER) {
2146 
		oldCodeKanaLockOn = oldLocksOn & KeyInfo::CODE_MASK;
2147 
		oldGraphLockOn = oldLocksOn & KeyInfo::GRAPH_MASK;
2148 
		oldCapsLockOn = oldLocksOn & KeyInfo::CAPS_MASK;
2149 
	}
2150 
	ar.serialize("oldCodeKanaLockOn", oldCodeKanaLockOn,
2151 
	             "oldGraphLockOn",    oldGraphLockOn,
2152 
	             "oldCapsLockOn",     oldCapsLockOn);
2153 
	if constexpr (Archive::IS_LOADER) {
2154 
		oldLocksOn = (oldCodeKanaLockOn ? KeyInfo::CODE_MASK : 0)
2155 
		           | (oldGraphLockOn ? KeyInfo::GRAPH_MASK : 0)
2156 
		           | (oldCapsLockOn ? KeyInfo::CAPS_MASK : 0);
2157 
	}
2158 
}
2159
2160 
// version 1: Initial version: {userKeyMatrix, dynKeymap, msxModifiers,
2161 
//            msxKeyEventQueue} was intentionally not serialized. The reason
2162 
//            was that after a loadstate, you want the MSX keyboard to reflect
2163 
//            the state of the host keyboard. So any pressed MSX keys from the
2164 
//            time the savestate was created are cleared.
2165 
// version 2: For reverse-replay it is important that snapshots contain the
2166 
//            full state of the MSX keyboard, so now we do serialize it.
2167 
// version 3: split cmdKeyMatrix into cmdKeyMatrix + typeKeyMatrix
2168 
// version 4: changed 'dynKeymap' to 'lastUnicodeForKeycode'
2169 
// version 5: changed 'lastUnicodeForKeycode' to 'lastUnicodeForScancode'
2170 
// TODO Is the assumption in version 1 correct (clear keyb state on load)?
2171 
//      If it is still useful for 'regular' loadstate, then we could implement
2172 
//      it by explicitly clearing the keyb state from the actual loadstate
2173 
//      command. (But let's only do this when experience shows it's really
2174 
//      better).
2175 
template<typename Archive>
2176 
void Keyboard::serialize(Archive& ar, unsigned version)
2177 
{
2178 
	ar.serialize("keyTypeCmd", keyTypeCmd,
2179 
	             "cmdKeyMatrix", cmdKeyMatrix);
2180 
	if (ar.versionAtLeast(version, 3)) {
2181 
		ar.serialize("typeKeyMatrix", typeKeyMatrix);
2182 
	} else {
2183 
		typeKeyMatrix = cmdKeyMatrix;
2184 
	}
2185
2186 
	bool msxCapsLockOn, msxCodeKanaLockOn, msxGraphLockOn;
2187 
	if constexpr (!Archive::IS_LOADER) {
2188 
		msxCapsLockOn = locksOn & KeyInfo::CAPS_MASK;
2189 
		msxCodeKanaLockOn = locksOn & KeyInfo::CODE_MASK;
2190 
		msxGraphLockOn = locksOn & KeyInfo::GRAPH_MASK;
2191 
	}
2192 
	ar.serialize("msxCapsLockOn",     msxCapsLockOn,
2193 
	             "msxCodeKanaLockOn", msxCodeKanaLockOn,
2194 
	             "msxGraphLockOn",    msxGraphLockOn);
2195 
	if constexpr (Archive::IS_LOADER) {
2196 
		locksOn = (msxCapsLockOn ? KeyInfo::CAPS_MASK : 0)
2197 
		        | (msxCodeKanaLockOn ? KeyInfo::CODE_MASK : 0)
2198 
		        | (msxGraphLockOn ? KeyInfo::GRAPH_MASK : 0);
2199 
	}
2200
2201 
	if (ar.versionAtLeast(version, 2)) {
2202 
		ar.serialize("userKeyMatrix",    userKeyMatrix,
2203 
		             "msxmodifiers",     msxModifiers,
2204 
		             "msxKeyEventQueue", msxKeyEventQueue);
2205 
	}
2206 
	if (ar.versionAtLeast(version, 5)) {
2207 
		ar.serialize("lastUnicodeForScancode", lastUnicodeForScancode);
2208 
	}
2209 
	else if (ar.versionAtLeast(version, 4)) {
2210 
		// convert keycode to scancode
2211 
		std::vector<std::pair<SDL_Keycode, uint32_t> > lastUnicodeForKeycode;
2212 
		ar.serialize("lastUnicodeForKeycode", lastUnicodeForKeycode);
2213 
		lastUnicodeForScancode.clear();
2214 
		for (const auto& [keyCode, unicode] : lastUnicodeForKeycode) {
2215 
			auto scanCode = SDL_GetScancodeFromKey(keyCode);
2216 
			lastUnicodeForScancode.emplace_back(scanCode, unicode);
2217 
		}
2218 
	} else {
2219 
		// We can't (easily) reconstruct 'lastUnicodeForKeycode' from
2220 
		// 'dynKeymap'. Usually this won't cause problems. E.g.
2221 
		// typically you aren't typing at the same time that you create
2222 
		// a savestate. For replays it might matter, though usually
2223 
		// replays are about games, and typing in games is rare (for
2224 
		// cursors and space this isn't needed).
2225 
		//
2226 
		// So, at least for now, it's fine to not reconstruct this data.
2227 
	}
2228 
	// don't serialize hostKeyMatrix
2229
2230 
	if constexpr (Archive::IS_LOADER) {
2231 
		// force recalculation of keyMatrix
2232 
		keysChanged = true;
2233 
	}
2234 
}
2235 
INSTANTIATE_SERIALIZE_METHODS(Keyboard);
2236
2237 
template<typename Archive>
2238 
void Keyboard::MsxKeyEventQueue::serialize(Archive& ar, unsigned /*version*/)
2239 
{
2240 
	ar.template serializeBase<Schedulable>(*this);
2241
2242 
	// serialization of deque<Event> is not directly
2243 
	// supported by the serialization framework (main problem is the
2244 
	// constness, collections of shared_ptr to polymorphic objects are
2245 
	// not a problem). Worked around this by serializing the events in
2246 
	// ascii format. (In all practical cases this queue will anyway be
2247 
	// empty or contain very few elements).
2248 
	//ar.serialize("eventQueue", eventQueue);
2249 
	std::vector<std::string> eventStrs;
2250 
	if constexpr (!Archive::IS_LOADER) {
2251 
		eventStrs = to_vector(std::views::transform(
2252 
			eventQueue, [](const auto& e) { return toString(e); }));
2253 
	}
2254 
	ar.serialize("eventQueue", eventStrs);
2255 
	if constexpr (Archive::IS_LOADER) {
2256 
		assert(eventQueue.empty());
2257 
		for (const auto& s : eventStrs) {
2258 
			eventQueue.push_back(
2259 
				InputEventFactory::createInputEvent(s, interp));
2260 
		}
2261 
	}
2262 
}
2263 
INSTANTIATE_SERIALIZE_METHODS(Keyboard::MsxKeyEventQueue);
2264
2265 
} // namespace openmsx