From f9653a4417665c208d96b4ee19394ace963adc66 Mon Sep 17 00:00:00 2001 From: Morph <39850852+Morph1984@users.noreply.github.com> Date: Wed, 25 Nov 2020 07:01:22 -0500 Subject: frontend/input_interpreter: Add InputInterpreter API The InputInterpreter class interfaces with HID to retrieve button press states. Input is intended to be polled every 50ms so that a button is considered to be held down after 400ms has elapsed since the initial button press and subsequent repeated presses occur every 50ms. Co-authored-by: Chloe <25727384+ogniK5377@users.noreply.github.com> --- src/core/frontend/input_interpreter.cpp | 45 +++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 src/core/frontend/input_interpreter.cpp (limited to 'src/core/frontend/input_interpreter.cpp') diff --git a/src/core/frontend/input_interpreter.cpp b/src/core/frontend/input_interpreter.cpp new file mode 100644 index 000000000..66ae506cd --- /dev/null +++ b/src/core/frontend/input_interpreter.cpp @@ -0,0 +1,45 @@ +// 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/frontend/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("hid") + ->GetAppletResource() + ->GetController(Service::HID::HidController::NPad)} {} + +InputInterpreter::~InputInterpreter() = default; + +void InputInterpreter::PollInput() { + const u32 button_state = npad.GetAndResetPressState(); + + previous_index = current_index; + current_index = (current_index + 1) % button_states.size(); + + button_states[current_index] = button_state; +} + +bool InputInterpreter::IsButtonPressedOnce(HIDButton button) const { + const bool current_press = + (button_states[current_index] & (1U << static_cast(button))) != 0; + const bool previous_press = + (button_states[previous_index] & (1U << static_cast(button))) != 0; + + return current_press && !previous_press; +} + +bool InputInterpreter::IsButtonHeld(HIDButton button) const { + u32 held_buttons{button_states[0]}; + + for (std::size_t i = 1; i < button_states.size(); ++i) { + held_buttons &= button_states[i]; + } + + return (held_buttons & (1U << static_cast(button))) != 0; +} -- cgit v1.2.3