citra/src/core/hid/input_interpreter.cpp
2021-11-24 20:30:26 -06:00

62 lines
1.9 KiB
C++

// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/core.h"
#include "core/hid/hid_types.h"
#include "core/hid/input_interpreter.h"
#include "core/hle/service/hid/controllers/npad.h"
#include "core/hle/service/hid/hid.h"
#include "core/hle/service/sm/sm.h"
InputInterpreter::InputInterpreter(Core::System& system)
: npad{system.ServiceManager()
.GetService<Service::HID::Hid>("hid")
->GetAppletResource()
->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad)} {
ResetButtonStates();
}
InputInterpreter::~InputInterpreter() = default;
void InputInterpreter::PollInput() {
const u64 button_state = npad.GetAndResetPressState();
previous_index = current_index;
current_index = (current_index + 1) % button_states.size();
button_states[current_index] = button_state;
}
void InputInterpreter::ResetButtonStates() {
previous_index = 0;
current_index = 0;
button_states[0] = 0xFFFFFFFFFFFFFFFF;
for (std::size_t i = 1; i < button_states.size(); ++i) {
button_states[i] = 0;
}
}
bool InputInterpreter::IsButtonPressed(Core::HID::NpadButton button) const {
return (button_states[current_index] & static_cast<u64>(button)) != 0;
}
bool InputInterpreter::IsButtonPressedOnce(Core::HID::NpadButton button) const {
const bool current_press = (button_states[current_index] & static_cast<u64>(button)) != 0;
const bool previous_press = (button_states[previous_index] & static_cast<u64>(button)) != 0;
return current_press && !previous_press;
}
bool InputInterpreter::IsButtonHeld(Core::HID::NpadButton button) const {
u64 held_buttons{button_states[0]};
for (std::size_t i = 1; i < button_states.size(); ++i) {
held_buttons &= button_states[i];
}
return (held_buttons & static_cast<u64>(button)) != 0;
}