bsnes-mt/bsnes/target-bsnes/input/input.cpp

467 lines
No EOL
11 KiB
C++

#include "../bsnes.hpp"
#include "_hotkeys.cpp"
InputManager inputManager;
auto InputMapping::bind() -> void {
for (auto& binding : bindings) {
binding = {};
}
for (uint index : range(BindingLimit)) {
auto& assignment = assignments[index];
auto& binding = bindings[index];
auto token = assignment.split("/");
if (token.size() < 3) { //skip invalid mappings
continue;
}
uint64 id = token[0].natural();
uint group = token[1].natural();
uint input = token[2].natural();
string qualifier = token(3, "None");
for (auto& device : inputManager.devices) {
if (id != device->id()) {
continue;
}
binding.device = device;
binding.group = group;
binding.input = input;
binding.qualifier = Qualifier::None;
if (qualifier == "Lo") {
binding.qualifier = Qualifier::Lo;
}
else if (qualifier == "Hi") {
binding.qualifier = Qualifier::Hi;
}
else if (qualifier == "Rumble") {
binding.qualifier = Qualifier::Rumble;
}
break;
}
}
string text;
for (auto& assignment : assignments) {
text.append(assignment, ";");
}
text.trimRight(";");
settings[path].setValue(text);
}
auto InputMapping::bind(string mapping, uint binding) -> void {
if (binding >= BindingLimit) {
return;
}
assignments[binding] = mapping;
bind();
}
auto InputMapping::bind(shared_pointer<HID::Device> device, uint group, uint input, int16 oldValue, int16 newValue, uint binding) -> bool {
if (device->isNull() || (device->isKeyboard() && device->group(group).input(input).name() == "Escape")) {
return unbind(binding), true;
}
string encoding = {"0x", hex(device->id()), "/", group, "/", input};
if (isDigital()) {
if (
(device->isKeyboard() && group == HID::Keyboard::GroupID::Button) ||
(device->isMouse() && group == HID::Mouse::GroupID::Button) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Button)
)
{
if (newValue) {
return bind(encoding, binding), true;
}
}
if (
(device->isJoypad() && group == HID::Joypad::GroupID::Axis) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Hat) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Trigger)
)
{
if (newValue < -16384 && group != HID::Joypad::GroupID::Trigger) { //triggers are always hi
return bind({encoding, "/Lo"}, binding), true;
}
if (newValue > +16384) {
return bind({encoding, "/Hi"}, binding), true;
}
}
}
if (isAnalog()) {
if (
(device->isMouse() && group == HID::Mouse::GroupID::Axis) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Axis) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Hat)
)
{
if (newValue < -16384 || newValue > +16384) {
return bind(encoding, binding), true;
}
}
}
if (isRumble() && device->isJoypad() && group == HID::Joypad::GroupID::Button && newValue) {
return bind({encoding, "/Rumble"}, binding), true;
}
return false;
}
auto InputMapping::unbind(uint binding) -> void {
bindings[binding] = {};
assignments[binding] = {};
string text;
for (auto& assignment : assignments) {
text.append(assignment, ";");
}
text.trimRight(";");
settings[path].setValue(text);
}
auto InputMapping::poll() -> int16 {
if (turboID) {
auto& mapping = inputManager.ports[portID].devices[deviceID].mappings[turboID()];
auto result = mapping.poll();
if (result) {
return inputManager.turboCounter >= inputManager.turboFrequency;
}
}
uint validBindings = 0;
int16 result = 0;
for (auto& binding : bindings) {
if (!binding.device) { //unbound
continue;
}
validBindings++;
auto& device = binding.device;
auto& group = binding.group;
auto& input = binding.input;
auto& qualifier = binding.qualifier;
auto value = device->group(group).input(input).value();
if (isDigital()) {
boolean output;
if (
(device->isKeyboard() && group == HID::Keyboard::GroupID::Button) ||
(device->isMouse() && group == HID::Mouse::GroupID::Button) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Button)
)
{
output = value != 0;
}
if (
(device->isJoypad() && group == HID::Joypad::GroupID::Axis) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Hat) ||
(device->isJoypad() && group == HID::Joypad::GroupID::Trigger)
)
{
if (qualifier == Qualifier::Lo) {
output = value < -16384;
}
else if (qualifier == Qualifier::Hi) {
output = value > +16384;
}
}
if (logic() == Logic::AND && output == 0) {
return 0;
}
if (logic() == Logic::OR && output == 1) {
return 1;
}
}
if (isAnalog()) {
//logic does not apply to analog inputs ... always combinatorial
if (device->isMouse() && group == HID::Mouse::GroupID::Axis) {
result += value;
}
if (device->isJoypad() && group == HID::Joypad::GroupID::Axis) {
result += value >> 8;
}
if (device->isJoypad() && group == HID::Joypad::GroupID::Hat) {
result += value < 0 ? -1 : value > 0 ? +1 : 0;
}
}
}
if (isDigital() && logic() == Logic::AND && validBindings > 0) {
return 1;
}
return result;
}
auto InputMapping::rumble(bool enable) -> void {
for (auto& binding : bindings) {
if (!binding.device) {
continue;
}
input.rumble(binding.device->id(), enable);
}
}
//
auto InputMapping::Binding::icon() -> image {
if (device) {
if (device->isKeyboard()) {
return Icon::Device::Keyboard;
}
if (device->isMouse()) {
return Icon::Device::Mouse;
}
if (device->isJoypad()) {
return Icon::Device::Joypad;
}
}
return {};
}
auto InputMapping::Binding::name() -> string {
//if ruby drivers cannot report accurate vendor/product IDs (eg SDL),
//and the user closes the emulator, changes gamepads, and restarts it,
//it is possible the wrong device will now be mapped to the input IDs.
//that could potentially make the group/input IDs go out of bounds.
if (!device || group >= device->size() || input >= device->group(group).size()) {
return {};
}
if (device->isKeyboard() || device->isMouse()) {
return device->group(group).input(input).name();
}
if (device->isJoypad()) {
string name{Hash::CRC16(string{device->id()}).digest().upcase()};
name.append(" ", device->group(group).name());
name.append(" ", device->group(group).input(input).name());
if (qualifier == Qualifier::Lo) {
name.append(" Lo");
}
else if (qualifier == Qualifier::Hi) {
name.append(" Hi");
}
else if (qualifier == Qualifier::Rumble) {
name.append(" Rumble");
}
return name;
}
return {};
}
//
auto InputManager::initialize() -> void {
devices.reset();
ports.reset();
hotkeys.reset();
input.onChange({&InputManager::onChange, this});
lastPoll = 0; //force a poll event immediately
frequency = max(1u, settings.input.frequency);
turboCounter = 0;
turboFrequency = max(1, settings.input.turbo.frequency);
auto information = emulator->information();
auto ports = emulator->ports();
for (uint portID : range(ports.size())) {
auto& port = ports[portID];
InputPort inputPort{port.id, port.name};
auto devices = emulator->devices(port.id);
for (uint deviceID : range(devices.size())) {
auto& device = devices[deviceID];
InputDevice inputDevice{device.id, device.name};
auto inputs = emulator->inputs(device.id);
for (uint inputID : range(inputs.size())) {
auto& input = inputs[inputID];
InputMapping inputMapping;
inputMapping.portID = portID;
inputMapping.deviceID = deviceID;
inputMapping.inputID = inputID;
inputMapping.name = input.name;
inputMapping.type = input.type;
inputMapping.path = string{information.name, "/", inputPort.name, "/", inputDevice.name, "/", inputMapping.name}.replace(" ", "");
auto assignments = settings(inputMapping.path).text().split(";");
for (uint index : range(BindingLimit)) {
inputMapping.assignments[index] = assignments(index);
}
inputDevice.mappings.append(inputMapping);
}
for (uint inputID : range(inputs.size())) {
auto& input = inputs[inputID];
if (input.type != InputMapping::Type::Button && input.type != InputMapping::Type::Trigger) {
continue;
}
uint turboID = inputDevice.mappings.size();
InputMapping inputMapping;
inputMapping.portID = portID;
inputMapping.deviceID = deviceID;
inputMapping.inputID = turboID;
inputMapping.name = string{"Turbo ", input.name};
inputMapping.type = input.type;
inputMapping.path = string{information.name, "/", inputPort.name, "/", inputDevice.name, "/", inputMapping.name}.replace(" ", "");
auto assignments = settings(inputMapping.path).text().split(";");
for (uint index : range(BindingLimit)) {
inputMapping.assignments[index] = assignments(index);
}
inputDevice.mappings.append(inputMapping);
inputDevice.mappings[inputID].turboID = turboID;
}
inputPort.devices.append(inputDevice);
}
this->ports.append(inputPort);
}
bindHotkeys();
poll();
}
auto InputManager::bind() -> void {
for (auto& port : ports) {
for (auto& device : port.devices) {
for (auto& mapping : device.mappings) {
mapping.bind();
}
}
}
for (auto& hotkey : hotkeys) {
hotkey.bind();
}
}
auto InputManager::poll() -> void {
if (Application::modal()) {
return;
}
//polling actual hardware devices is time-consuming; skip if poll was called too recently
auto thisPoll = chrono::millisecond();
if (thisPoll - lastPoll < frequency) {
return;
}
lastPoll = thisPoll;
auto devices = input.poll();
bool changed = devices.size() != this->devices.size();
if (!changed) {
for (auto n : range(devices.size())) {
changed = devices[n] != this->devices[n];
if (changed) {
break;
}
}
}
if (changed) {
this->devices = devices;
bind();
}
}
auto InputManager::frame() -> void {
if (++turboCounter >= turboFrequency * 2) {
turboCounter = 0;
}
}
auto InputManager::onChange(shared_pointer<HID::Device> device, uint group, uint input, int16_t oldValue, int16_t newValue) -> void {
if (settingsWindow.focused()) {
inputSettings.inputEvent(device, group, input, oldValue, newValue);
hotkeySettings.inputEvent(device, group, input, oldValue, newValue);
}
}
auto InputManager::mapping(uint port, uint device, uint input) -> maybe<InputMapping&> {
if (!emulator) {
return nothing;
}
for (auto& inputPort : ports) {
if (inputPort.id != port) {
continue;
}
for (auto& inputDevice : inputPort.devices) {
if (inputDevice.id != device || input >= inputDevice.mappings.size()) {
continue;
}
return inputDevice.mappings[input];
}
}
return nothing;
}
auto InputManager::findMouse() -> shared_pointer<HID::Device> {
for (auto& device : devices) {
if (device->isMouse()) {
return device;
}
}
return {};
}