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-rw-r--r--src/core/CMakeLists.txt5
-rw-r--r--src/core/hid/hid_types.h388
-rw-r--r--src/core/hid/input_converter.cpp345
-rw-r--r--src/core/hid/input_converter.h77
-rw-r--r--src/core/hid/motion_input.cpp278
-rw-r--r--src/core/hid/motion_input.h71
6 files changed, 1164 insertions, 0 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 14ba986d3..eddf455c0 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -135,8 +135,13 @@ add_library(core STATIC
frontend/input.h
hardware_interrupt_manager.cpp
hardware_interrupt_manager.h
+ hid/hid_types.h
+ hid/input_converter.cpp
+ hid/input_converter.h
hid/input_interpreter.cpp
hid/input_interpreter.h
+ hid/motion_input.cpp
+ hid/motion_input.h
hle/api_version.h
hle/ipc.h
hle/ipc_helpers.h
diff --git a/src/core/hid/hid_types.h b/src/core/hid/hid_types.h
new file mode 100644
index 000000000..d3f7930c9
--- /dev/null
+++ b/src/core/hid/hid_types.h
@@ -0,0 +1,388 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/point.h"
+#include "common/uuid.h"
+
+namespace Core::HID {
+
+// This is nn::hid::NpadIdType
+enum class NpadIdType : u8 {
+ Player1 = 0x0,
+ Player2 = 0x1,
+ Player3 = 0x2,
+ Player4 = 0x3,
+ Player5 = 0x4,
+ Player6 = 0x5,
+ Player7 = 0x6,
+ Player8 = 0x7,
+ Other = 0x10,
+ Handheld = 0x20,
+
+ Invalid = 0xFF,
+};
+
+/// Converts a NpadIdType to an array index.
+constexpr size_t NpadIdTypeToIndex(NpadIdType npad_id_type) {
+ switch (npad_id_type) {
+ case NpadIdType::Player1:
+ return 0;
+ case NpadIdType::Player2:
+ return 1;
+ case NpadIdType::Player3:
+ return 2;
+ case NpadIdType::Player4:
+ return 3;
+ case NpadIdType::Player5:
+ return 4;
+ case NpadIdType::Player6:
+ return 5;
+ case NpadIdType::Player7:
+ return 6;
+ case NpadIdType::Player8:
+ return 7;
+ case NpadIdType::Other:
+ return 8;
+ case NpadIdType::Handheld:
+ return 9;
+ default:
+ return 0;
+ }
+}
+
+/// Converts an array index to a NpadIdType
+constexpr NpadIdType IndexToNpadIdType(size_t index) {
+ switch (index) {
+ case 0:
+ return NpadIdType::Player1;
+ case 1:
+ return NpadIdType::Player2;
+ case 2:
+ return NpadIdType::Player3;
+ case 3:
+ return NpadIdType::Player4;
+ case 4:
+ return NpadIdType::Player5;
+ case 5:
+ return NpadIdType::Player6;
+ case 6:
+ return NpadIdType::Player7;
+ case 7:
+ return NpadIdType::Player8;
+ case 8:
+ return NpadIdType::Other;
+ case 9:
+ return NpadIdType::Handheld;
+ default:
+ return NpadIdType::Invalid;
+ }
+}
+
+// This is nn::hid::NpadType
+enum class NpadType : u8 {
+ None = 0,
+ ProController = 3,
+ Handheld = 4,
+ JoyconDual = 5,
+ JoyconLeft = 6,
+ JoyconRight = 7,
+ GameCube = 8,
+ Pokeball = 9,
+ MaxNpadType = 10,
+};
+
+// This is nn::hid::NpadStyleTag
+struct NpadStyleTag {
+ union {
+ u32_le raw{};
+
+ BitField<0, 1, u32> fullkey;
+ BitField<1, 1, u32> handheld;
+ BitField<2, 1, u32> joycon_dual;
+ BitField<3, 1, u32> joycon_left;
+ BitField<4, 1, u32> joycon_right;
+ BitField<5, 1, u32> gamecube;
+ BitField<6, 1, u32> palma;
+ BitField<7, 1, u32> lark;
+ BitField<8, 1, u32> handheld_lark;
+ BitField<9, 1, u32> lucia;
+ BitField<29, 1, u32> system_ext;
+ BitField<30, 1, u32> system;
+ };
+};
+static_assert(sizeof(NpadStyleTag) == 4, "NpadStyleTag is an invalid size");
+
+// This is nn::hid::TouchAttribute
+struct TouchAttribute {
+ union {
+ u32 raw{};
+ BitField<0, 1, u32> start_touch;
+ BitField<1, 1, u32> end_touch;
+ };
+};
+static_assert(sizeof(TouchAttribute) == 0x4, "TouchAttribute is an invalid size");
+
+// This is nn::hid::TouchState
+struct TouchState {
+ u64_le delta_time;
+ TouchAttribute attribute;
+ u32_le finger;
+ Common::Point<u32_le> position;
+ u32_le diameter_x;
+ u32_le diameter_y;
+ u32_le rotation_angle;
+};
+static_assert(sizeof(TouchState) == 0x28, "Touchstate is an invalid size");
+
+// This is nn::hid::NpadControllerColor
+struct NpadControllerColor {
+ u32_le body;
+ u32_le button;
+};
+static_assert(sizeof(NpadControllerColor) == 8, "NpadControllerColor is an invalid size");
+
+// This is nn::hid::AnalogStickState
+struct AnalogStickState {
+ s32_le x;
+ s32_le y;
+};
+static_assert(sizeof(AnalogStickState) == 8, "AnalogStickState is an invalid size");
+
+// This is nn::hid::server::NpadGcTriggerState
+struct NpadGcTriggerState {
+ s64_le sampling_number{};
+ s32_le left{};
+ s32_le right{};
+};
+static_assert(sizeof(NpadGcTriggerState) == 0x10, "NpadGcTriggerState is an invalid size");
+
+// This is nn::hid::system::NpadBatteryLevel
+using BatteryLevel = u32;
+static_assert(sizeof(BatteryLevel) == 0x4, "BatteryLevel is an invalid size");
+
+// This is nn::hid::system::NpadPowerInfo
+struct NpadPowerInfo {
+ bool is_powered;
+ bool is_charging;
+ INSERT_PADDING_BYTES(0x6);
+ BatteryLevel battery_level;
+};
+static_assert(sizeof(NpadPowerInfo) == 0xC, "NpadPowerInfo is an invalid size");
+
+// This is nn::hid::NpadButton
+enum class NpadButton : u64 {
+ None = 0,
+ A = 1U << 0,
+ B = 1U << 1,
+ X = 1U << 2,
+ Y = 1U << 3,
+ StickL = 1U << 4,
+ StickR = 1U << 5,
+ L = 1U << 6,
+ R = 1U << 7,
+ ZL = 1U << 8,
+ ZR = 1U << 9,
+ Plus = 1U << 10,
+ Minus = 1U << 11,
+
+ Left = 1U << 12,
+ Up = 1U << 13,
+ Right = 1U << 14,
+ Down = 1U << 15,
+
+ StickLLeft = 1U << 16,
+ StickLUp = 1U << 17,
+ StickLRight = 1U << 18,
+ StickLDown = 1U << 19,
+
+ StickRLeft = 1U << 20,
+ StickRUp = 1U << 21,
+ StickRRight = 1U << 22,
+ StickRDown = 1U << 23,
+
+ LeftSL = 1U << 24,
+ LeftSR = 1U << 25,
+
+ RightSL = 1U << 26,
+ RightSR = 1U << 27,
+
+ Palma = 1U << 28,
+ HandheldLeftB = 1U << 30,
+};
+DECLARE_ENUM_FLAG_OPERATORS(NpadButton);
+
+struct NpadButtonState {
+ union {
+ NpadButton raw{};
+
+ // Buttons
+ BitField<0, 1, u64> a;
+ BitField<1, 1, u64> b;
+ BitField<2, 1, u64> x;
+ BitField<3, 1, u64> y;
+ BitField<4, 1, u64> stick_l;
+ BitField<5, 1, u64> stick_r;
+ BitField<6, 1, u64> l;
+ BitField<7, 1, u64> r;
+ BitField<8, 1, u64> zl;
+ BitField<9, 1, u64> zr;
+ BitField<10, 1, u64> plus;
+ BitField<11, 1, u64> minus;
+
+ // D-Pad
+ BitField<12, 1, u64> left;
+ BitField<13, 1, u64> up;
+ BitField<14, 1, u64> right;
+ BitField<15, 1, u64> down;
+
+ // Left JoyStick
+ BitField<16, 1, u64> stick_l_left;
+ BitField<17, 1, u64> stick_l_up;
+ BitField<18, 1, u64> stick_l_right;
+ BitField<19, 1, u64> stick_l_down;
+
+ // Right JoyStick
+ BitField<20, 1, u64> stick_r_left;
+ BitField<21, 1, u64> stick_r_up;
+ BitField<22, 1, u64> stick_r_right;
+ BitField<23, 1, u64> stick_r_down;
+
+ BitField<24, 1, u64> left_sl;
+ BitField<25, 1, u64> left_sr;
+
+ BitField<26, 1, u64> right_sl;
+ BitField<27, 1, u64> right_sr;
+
+ BitField<28, 1, u64> palma;
+ BitField<30, 1, u64> handheld_left_b;
+ };
+};
+static_assert(sizeof(NpadButtonState) == 0x8, "NpadButtonState has incorrect size.");
+
+// This is nn::hid::DebugPadButton
+struct DebugPadButton {
+ union {
+ u32_le raw{};
+ BitField<0, 1, u32> a;
+ BitField<1, 1, u32> b;
+ BitField<2, 1, u32> x;
+ BitField<3, 1, u32> y;
+ BitField<4, 1, u32> l;
+ BitField<5, 1, u32> r;
+ BitField<6, 1, u32> zl;
+ BitField<7, 1, u32> zr;
+ BitField<8, 1, u32> plus;
+ BitField<9, 1, u32> minus;
+ BitField<10, 1, u32> d_left;
+ BitField<11, 1, u32> d_up;
+ BitField<12, 1, u32> d_right;
+ BitField<13, 1, u32> d_down;
+ };
+};
+static_assert(sizeof(DebugPadButton) == 0x4, "DebugPadButton is an invalid size");
+
+// This is nn::hid::VibrationDeviceType
+enum class VibrationDeviceType : u32 {
+ Unknown = 0,
+ LinearResonantActuator = 1,
+ GcErm = 2,
+};
+
+// This is nn::hid::VibrationDevicePosition
+enum class VibrationDevicePosition : u32 {
+ None = 0,
+ Left = 1,
+ Right = 2,
+};
+
+// This is nn::hid::VibrationValue
+struct VibrationValue {
+ f32 low_amplitude;
+ f32 low_frequency;
+ f32 high_amplitude;
+ f32 high_frequency;
+};
+static_assert(sizeof(VibrationValue) == 0x10, "VibrationValue has incorrect size.");
+
+// This is nn::hid::VibrationGcErmCommand
+enum class VibrationGcErmCommand : u64 {
+ Stop = 0,
+ Start = 1,
+ StopHard = 2,
+};
+
+// This is nn::hid::VibrationDeviceInfo
+struct VibrationDeviceInfo {
+ VibrationDeviceType type{};
+ VibrationDevicePosition position{};
+};
+static_assert(sizeof(VibrationDeviceInfo) == 0x8, "VibrationDeviceInfo has incorrect size.");
+
+// This is nn::hid::KeyboardModifier
+struct KeyboardModifier {
+ union {
+ u32_le raw{};
+ BitField<0, 1, u32> control;
+ BitField<1, 1, u32> shift;
+ BitField<2, 1, u32> left_alt;
+ BitField<3, 1, u32> right_alt;
+ BitField<4, 1, u32> gui;
+ BitField<8, 1, u32> caps_lock;
+ BitField<9, 1, u32> scroll_lock;
+ BitField<10, 1, u32> num_lock;
+ BitField<11, 1, u32> katakana;
+ BitField<12, 1, u32> hiragana;
+ };
+};
+static_assert(sizeof(KeyboardModifier) == 0x4, "KeyboardModifier is an invalid size");
+
+// This is nn::hid::KeyboardKey
+struct KeyboardKey {
+ // This should be a 256 bit flag
+ std::array<u8, 32> key;
+};
+static_assert(sizeof(KeyboardKey) == 0x20, "KeyboardKey is an invalid size");
+
+// This is nn::hid::MouseButton
+struct MouseButton {
+ union {
+ u32_le raw{};
+ BitField<0, 1, u32> left;
+ BitField<1, 1, u32> right;
+ BitField<2, 1, u32> middle;
+ BitField<3, 1, u32> forward;
+ BitField<4, 1, u32> back;
+ };
+};
+static_assert(sizeof(MouseButton) == 0x4, "MouseButton is an invalid size");
+
+// This is nn::hid::MouseAttribute
+struct MouseAttribute {
+ union {
+ u32_le raw{};
+ BitField<0, 1, u32> transferable;
+ BitField<1, 1, u32> is_connected;
+ };
+};
+static_assert(sizeof(MouseAttribute) == 0x4, "MouseAttribute is an invalid size");
+
+// This is nn::hid::detail::MouseState
+struct MouseState {
+ s64_le sampling_number;
+ s32_le x;
+ s32_le y;
+ s32_le delta_x;
+ s32_le delta_y;
+ s32_le delta_wheel_x;
+ s32_le delta_wheel_y;
+ MouseButton button;
+ MouseAttribute attribute;
+};
+static_assert(sizeof(MouseState) == 0x28, "MouseState is an invalid size");
+} // namespace Core::HID
diff --git a/src/core/hid/input_converter.cpp b/src/core/hid/input_converter.cpp
new file mode 100644
index 000000000..5834622e9
--- /dev/null
+++ b/src/core/hid/input_converter.cpp
@@ -0,0 +1,345 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <random>
+
+#include "common/input.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+
+Input::BatteryStatus TransformToBattery(const Input::CallbackStatus& callback) {
+ Input::BatteryStatus battery{};
+ switch (callback.type) {
+ case Input::InputType::Analog:
+ case Input::InputType::Trigger: {
+ const auto value = TransformToTrigger(callback).analog.value;
+ battery = Input::BatteryLevel::Empty;
+ if (value > 0.2f) {
+ battery = Input::BatteryLevel::Critical;
+ }
+ if (value > 0.4f) {
+ battery = Input::BatteryLevel::Low;
+ }
+ if (value > 0.6f) {
+ battery = Input::BatteryLevel::Medium;
+ }
+ if (value > 0.8f) {
+ battery = Input::BatteryLevel::Full;
+ }
+ if (value >= 1.0f) {
+ battery = Input::BatteryLevel::Charging;
+ }
+ break;
+ }
+ case Input::InputType::Battery:
+ battery = callback.battery_status;
+ break;
+ default:
+ LOG_ERROR(Input, "Conversion from type {} to battery not implemented", callback.type);
+ break;
+ }
+
+ return battery;
+}
+
+Input::ButtonStatus TransformToButton(const Input::CallbackStatus& callback) {
+ Input::ButtonStatus status{};
+ switch (callback.type) {
+ case Input::InputType::Analog:
+ case Input::InputType::Trigger:
+ status.value = TransformToTrigger(callback).pressed;
+ break;
+ case Input::InputType::Button:
+ status = callback.button_status;
+ break;
+ default:
+ LOG_ERROR(Input, "Conversion from type {} to button not implemented", callback.type);
+ break;
+ }
+
+ if (status.inverted) {
+ status.value = !status.value;
+ }
+
+ return status;
+}
+
+Input::MotionStatus TransformToMotion(const Input::CallbackStatus& callback) {
+ Input::MotionStatus status{};
+ switch (callback.type) {
+ case Input::InputType::Button: {
+ if (TransformToButton(callback).value) {
+ std::random_device device;
+ std::mt19937 gen(device());
+ std::uniform_int_distribution<s16> distribution(-1000, 1000);
+ Input::AnalogProperties properties{
+ .deadzone = 0.0,
+ .range = 1.0f,
+ .offset = 0.0,
+ };
+ status.accel.x = {
+ .value = 0,
+ .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+ .properties = properties,
+ };
+ status.accel.y = {
+ .value = 0,
+ .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+ .properties = properties,
+ };
+ status.accel.z = {
+ .value = 0,
+ .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+ .properties = properties,
+ };
+ status.gyro.x = {
+ .value = 0,
+ .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+ .properties = properties,
+ };
+ status.gyro.y = {
+ .value = 0,
+ .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+ .properties = properties,
+ };
+ status.gyro.z = {
+ .value = 0,
+ .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+ .properties = properties,
+ };
+ }
+ break;
+ }
+ case Input::InputType::Motion:
+ status = callback.motion_status;
+ break;
+ default:
+ LOG_ERROR(Input, "Conversion from type {} to motion not implemented", callback.type);
+ break;
+ }
+ SanitizeAnalog(status.accel.x, false);
+ SanitizeAnalog(status.accel.y, false);
+ SanitizeAnalog(status.accel.z, false);
+ SanitizeAnalog(status.gyro.x, false);
+ SanitizeAnalog(status.gyro.y, false);
+ SanitizeAnalog(status.gyro.z, false);
+
+ return status;
+}
+
+Input::StickStatus TransformToStick(const Input::CallbackStatus& callback) {
+ Input::StickStatus status{};
+
+ switch (callback.type) {
+ case Input::InputType::Stick:
+ status = callback.stick_status;
+ break;
+ default:
+ LOG_ERROR(Input, "Conversion from type {} to stick not implemented", callback.type);
+ break;
+ }
+
+ SanitizeStick(status.x, status.y, true);
+ const Input::AnalogProperties& properties_x = status.x.properties;
+ const Input::AnalogProperties& properties_y = status.y.properties;
+ const float x = status.x.value;
+ const float y = status.y.value;
+
+ // Set directional buttons
+ status.right = x > properties_x.threshold;
+ status.left = x < -properties_x.threshold;
+ status.up = y > properties_y.threshold;
+ status.down = y < -properties_y.threshold;
+
+ return status;
+}
+
+Input::TouchStatus TransformToTouch(const Input::CallbackStatus& callback) {
+ Input::TouchStatus status{};
+
+ switch (callback.type) {
+ case Input::InputType::Touch:
+ status = callback.touch_status;
+ break;
+ default:
+ LOG_ERROR(Input, "Conversion from type {} to touch not implemented", callback.type);
+ break;
+ }
+
+ SanitizeAnalog(status.x, true);
+ SanitizeAnalog(status.y, true);
+ float& x = status.x.value;
+ float& y = status.y.value;
+
+ // Adjust if value is inverted
+ x = status.x.properties.inverted ? 1.0f + x : x;
+ y = status.y.properties.inverted ? 1.0f + y : y;
+
+ // clamp value
+ x = std::clamp(x, 0.0f, 1.0f);
+ y = std::clamp(y, 0.0f, 1.0f);
+
+ if (status.pressed.inverted) {
+ status.pressed.value = !status.pressed.value;
+ }
+
+ return status;
+}
+
+Input::TriggerStatus TransformToTrigger(const Input::CallbackStatus& callback) {
+ Input::TriggerStatus status{};
+ float& raw_value = status.analog.raw_value;
+ bool calculate_button_value = true;
+
+ switch (callback.type) {
+ case Input::InputType::Analog:
+ status.analog.properties = callback.analog_status.properties;
+ raw_value = callback.analog_status.raw_value;
+ break;
+ case Input::InputType::Button:
+ status.analog.properties.range = 1.0f;
+ status.analog.properties.inverted = callback.button_status.inverted;
+ raw_value = callback.button_status.value ? 1.0f : 0.0f;
+ break;
+ case Input::InputType::Trigger:
+ status = callback.trigger_status;
+ calculate_button_value = false;
+ break;
+ default:
+ LOG_ERROR(Input, "Conversion from type {} to trigger not implemented", callback.type);
+ break;
+ }
+
+ SanitizeAnalog(status.analog, true);
+ const Input::AnalogProperties& properties = status.analog.properties;
+ float& value = status.analog.value;
+
+ // Set button status
+ if (calculate_button_value) {
+ status.pressed = value > properties.threshold;
+ }
+
+ // Adjust if value is inverted
+ value = properties.inverted ? 1.0f + value : value;
+
+ // clamp value
+ value = std::clamp(value, 0.0f, 1.0f);
+
+ return status;
+}
+
+void SanitizeAnalog(Input::AnalogStatus& analog, bool clamp_value) {
+ const Input::AnalogProperties& properties = analog.properties;
+ float& raw_value = analog.raw_value;
+ float& value = analog.value;
+
+ if (!std::isnormal(raw_value)) {
+ raw_value = 0;
+ }
+
+ // Apply center offset
+ raw_value -= properties.offset;
+
+ // Set initial values to be formated
+ value = raw_value;
+
+ // Calculate vector size
+ const float r = std::abs(value);
+
+ // Return zero if value is smaller than the deadzone
+ if (r <= properties.deadzone || properties.deadzone == 1.0f) {
+ analog.value = 0;
+ return;
+ }
+
+ // Adjust range of value
+ const float deadzone_factor =
+ 1.0f / r * (r - properties.deadzone) / (1.0f - properties.deadzone);
+ value = value * deadzone_factor / properties.range;
+
+ // Invert direction if needed
+ if (properties.inverted) {
+ value = -value;
+ }
+
+ // Clamp value
+ if (clamp_value) {
+ value = std::clamp(value, -1.0f, 1.0f);
+ }
+}
+
+void SanitizeStick(Input::AnalogStatus& analog_x, Input::AnalogStatus& analog_y, bool clamp_value) {
+ const Input::AnalogProperties& properties_x = analog_x.properties;
+ const Input::AnalogProperties& properties_y = analog_y.properties;
+ float& raw_x = analog_x.raw_value;
+ float& raw_y = analog_y.raw_value;
+ float& x = analog_x.value;
+ float& y = analog_y.value;
+
+ if (!std::isnormal(raw_x)) {
+ raw_x = 0;
+ }
+ if (!std::isnormal(raw_y)) {
+ raw_y = 0;
+ }
+
+ // Apply center offset
+ raw_x += properties_x.offset;
+ raw_y += properties_y.offset;
+
+ // Apply X scale correction from offset
+ if (std::abs(properties_x.offset) < 0.5f) {
+ if (raw_x > 0) {
+ raw_x /= 1 + properties_x.offset;
+ } else {
+ raw_x /= 1 - properties_x.offset;
+ }
+ }
+
+ // Apply Y scale correction from offset
+ if (std::abs(properties_y.offset) < 0.5f) {
+ if (raw_y > 0) {
+ raw_y /= 1 + properties_y.offset;
+ } else {
+ raw_y /= 1 - properties_y.offset;
+ }
+ }
+
+ // Invert direction if needed
+ raw_x = properties_x.inverted ? -raw_x : raw_x;
+ raw_y = properties_y.inverted ? -raw_y : raw_y;
+
+ // Set initial values to be formated
+ x = raw_x;
+ y = raw_y;
+
+ // Calculate vector size
+ float r = x * x + y * y;
+ r = std::sqrt(r);
+
+ // TODO(German77): Use deadzone and range of both axis
+
+ // Return zero if values are smaller than the deadzone
+ if (r <= properties_x.deadzone || properties_x.deadzone >= 1.0f) {
+ x = 0;
+ y = 0;
+ return;
+ }
+
+ // Adjust range of joystick
+ const float deadzone_factor =
+ 1.0f / r * (r - properties_x.deadzone) / (1.0f - properties_x.deadzone);
+ x = x * deadzone_factor / properties_x.range;
+ y = y * deadzone_factor / properties_x.range;
+ r = r * deadzone_factor / properties_x.range;
+
+ // Normalize joystick
+ if (clamp_value && r > 1.0f) {
+ x /= r;
+ y /= r;
+ }
+}
+
+} // namespace Core::HID
diff --git a/src/core/hid/input_converter.h b/src/core/hid/input_converter.h
new file mode 100644
index 000000000..3cc32e26a
--- /dev/null
+++ b/src/core/hid/input_converter.h
@@ -0,0 +1,77 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+namespace Input {
+struct CallbackStatus;
+};
+
+namespace Core::HID {
+
+/**
+ * Converts raw input data into a valid battery status.
+ *
+ * @param Supported callbacks: Analog, Battery, Trigger.
+ * @return A valid BatteryStatus object.
+ */
+Input::BatteryStatus TransformToBattery(const Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid button status. Applies invert properties to the output.
+ *
+ * @param Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TouchStatus object.
+ */
+Input::ButtonStatus TransformToButton(const Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid motion status.
+ *
+ * @param Supported callbacks: Motion.
+ * @return A valid TouchStatus object.
+ */
+Input::MotionStatus TransformToMotion(const Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid stick status. Applies offset, deadzone, range and invert
+ * properties to the output.
+ *
+ * @param Supported callbacks: Stick.
+ * @return A valid StickStatus object.
+ */
+Input::StickStatus TransformToStick(const Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid touch status.
+ *
+ * @param Supported callbacks: Touch.
+ * @return A valid TouchStatus object.
+ */
+Input::TouchStatus TransformToTouch(const Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid trigger status. Applies offset, deadzone, range and
+ * invert properties to the output. Button status uses the threshold property if necessary.
+ *
+ * @param Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TriggerStatus object.
+ */
+Input::TriggerStatus TransformToTrigger(const Input::CallbackStatus& callback);
+
+/**
+ * Converts raw analog data into a valid analog value
+ * @param An analog object containing raw data and properties, bool that determines if the value
+ * needs to be clamped between -1.0f and 1.0f.
+ */
+void SanitizeAnalog(Input::AnalogStatus& analog, bool clamp_value);
+
+/**
+ * Converts raw stick data into a valid stick value
+ * @param Two analog objects containing raw data and properties, bool that determines if the value
+ * needs to be clamped into the unit circle.
+ */
+void SanitizeStick(Input::AnalogStatus& analog_x, Input::AnalogStatus& analog_y, bool clamp_value);
+
+} // namespace Core::HID
diff --git a/src/core/hid/motion_input.cpp b/src/core/hid/motion_input.cpp
new file mode 100644
index 000000000..93f37b77b
--- /dev/null
+++ b/src/core/hid/motion_input.cpp
@@ -0,0 +1,278 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/math_util.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+
+MotionInput::MotionInput() {
+ // Initialize PID constants with default values
+ SetPID(0.3f, 0.005f, 0.0f);
+}
+
+void MotionInput::SetPID(f32 new_kp, f32 new_ki, f32 new_kd) {
+ kp = new_kp;
+ ki = new_ki;
+ kd = new_kd;
+}
+
+void MotionInput::SetAcceleration(const Common::Vec3f& acceleration) {
+ accel = acceleration;
+}
+
+void MotionInput::SetGyroscope(const Common::Vec3f& gyroscope) {
+ gyro = gyroscope - gyro_drift;
+
+ // Auto adjust drift to minimize drift
+ if (!IsMoving(0.1f)) {
+ gyro_drift = (gyro_drift * 0.9999f) + (gyroscope * 0.0001f);
+ }
+
+ if (gyro.Length2() < gyro_threshold) {
+ gyro = {};
+ } else {
+ only_accelerometer = false;
+ }
+}
+
+void MotionInput::SetQuaternion(const Common::Quaternion<f32>& quaternion) {
+ quat = quaternion;
+}
+
+void MotionInput::SetGyroDrift(const Common::Vec3f& drift) {
+ gyro_drift = drift;
+}
+
+void MotionInput::SetGyroThreshold(f32 threshold) {
+ gyro_threshold = threshold;
+}
+
+void MotionInput::EnableReset(bool reset) {
+ reset_enabled = reset;
+}
+
+void MotionInput::ResetRotations() {
+ rotations = {};
+}
+
+bool MotionInput::IsMoving(f32 sensitivity) const {
+ return gyro.Length() >= sensitivity || accel.Length() <= 0.9f || accel.Length() >= 1.1f;
+}
+
+bool MotionInput::IsCalibrated(f32 sensitivity) const {
+ return real_error.Length() < sensitivity;
+}
+
+void MotionInput::UpdateRotation(u64 elapsed_time) {
+ const auto sample_period = static_cast<f32>(elapsed_time) / 1000000.0f;
+ if (sample_period > 0.1f) {
+ return;
+ }
+ rotations += gyro * sample_period;
+}
+
+void MotionInput::UpdateOrientation(u64 elapsed_time) {
+ if (!IsCalibrated(0.1f)) {
+ ResetOrientation();
+ }
+ // Short name local variable for readability
+ f32 q1 = quat.w;
+ f32 q2 = quat.xyz[0];
+ f32 q3 = quat.xyz[1];
+ f32 q4 = quat.xyz[2];
+ const auto sample_period = static_cast<f32>(elapsed_time) / 1000000.0f;
+
+ // Ignore invalid elapsed time
+ if (sample_period > 0.1f) {
+ return;
+ }
+
+ const auto normal_accel = accel.Normalized();
+ auto rad_gyro = gyro * Common::PI * 2;
+ const f32 swap = rad_gyro.x;
+ rad_gyro.x = rad_gyro.y;
+ rad_gyro.y = -swap;
+ rad_gyro.z = -rad_gyro.z;
+
+ // Clear gyro values if there is no gyro present
+ if (only_accelerometer) {
+ rad_gyro.x = 0;
+ rad_gyro.y = 0;
+ rad_gyro.z = 0;
+ }
+
+ // Ignore drift correction if acceleration is not reliable
+ if (accel.Length() >= 0.75f && accel.Length() <= 1.25f) {
+ const f32 ax = -normal_accel.x;
+ const f32 ay = normal_accel.y;
+ const f32 az = -normal_accel.z;
+
+ // Estimated direction of gravity
+ const f32 vx = 2.0f * (q2 * q4 - q1 * q3);
+ const f32 vy = 2.0f * (q1 * q2 + q3 * q4);
+ const f32 vz = q1 * q1 - q2 * q2 - q3 * q3 + q4 * q4;
+
+ // Error is cross product between estimated direction and measured direction of gravity
+ const Common::Vec3f new_real_error = {
+ az * vx - ax * vz,
+ ay * vz - az * vy,
+ ax * vy - ay * vx,
+ };
+
+ derivative_error = new_real_error - real_error;
+ real_error = new_real_error;
+
+ // Prevent integral windup
+ if (ki != 0.0f && !IsCalibrated(0.05f)) {
+ integral_error += real_error;
+ } else {
+ integral_error = {};
+ }
+
+ // Apply feedback terms
+ if (!only_accelerometer) {
+ rad_gyro += kp * real_error;
+ rad_gyro += ki * integral_error;
+ rad_gyro += kd * derivative_error;
+ } else {
+ // Give more weight to accelerometer values to compensate for the lack of gyro
+ rad_gyro += 35.0f * kp * real_error;
+ rad_gyro += 10.0f * ki * integral_error;
+ rad_gyro += 10.0f * kd * derivative_error;
+
+ // Emulate gyro values for games that need them
+ gyro.x = -rad_gyro.y;
+ gyro.y = rad_gyro.x;
+ gyro.z = -rad_gyro.z;
+ UpdateRotation(elapsed_time);
+ }
+ }
+
+ const f32 gx = rad_gyro.y;
+ const f32 gy = rad_gyro.x;
+ const f32 gz = rad_gyro.z;
+
+ // Integrate rate of change of quaternion
+ const f32 pa = q2;
+ const f32 pb = q3;
+ const f32 pc = q4;
+ q1 = q1 + (-q2 * gx - q3 * gy - q4 * gz) * (0.5f * sample_period);
+ q2 = pa + (q1 * gx + pb * gz - pc * gy) * (0.5f * sample_period);
+ q3 = pb + (q1 * gy - pa * gz + pc * gx) * (0.5f * sample_period);
+ q4 = pc + (q1 * gz + pa * gy - pb * gx) * (0.5f * sample_period);
+
+ quat.w = q1;
+ quat.xyz[0] = q2;
+ quat.xyz[1] = q3;
+ quat.xyz[2] = q4;
+ quat = quat.Normalized();
+}
+
+std::array<Common::Vec3f, 3> MotionInput::GetOrientation() const {
+ const Common::Quaternion<float> quad{
+ .xyz = {-quat.xyz[1], -quat.xyz[0], -quat.w},
+ .w = -quat.xyz[2],
+ };
+ const std::array<float, 16> matrix4x4 = quad.ToMatrix();
+
+ return {Common::Vec3f(matrix4x4[0], matrix4x4[1], -matrix4x4[2]),
+ Common::Vec3f(matrix4x4[4], matrix4x4[5], -matrix4x4[6]),
+ Common::Vec3f(-matrix4x4[8], -matrix4x4[9], matrix4x4[10])};
+}
+
+Common::Vec3f MotionInput::GetAcceleration() const {
+ return accel;
+}
+
+Common::Vec3f MotionInput::GetGyroscope() const {
+ return gyro;
+}
+
+Common::Quaternion<f32> MotionInput::GetQuaternion() const {
+ return quat;
+}
+
+Common::Vec3f MotionInput::GetRotations() const {
+ return rotations;
+}
+
+void MotionInput::ResetOrientation() {
+ if (!reset_enabled || only_accelerometer) {
+ return;
+ }
+ if (!IsMoving(0.5f) && accel.z <= -0.9f) {
+ ++reset_counter;
+ if (reset_counter > 900) {
+ quat.w = 0;
+ quat.xyz[0] = 0;
+ quat.xyz[1] = 0;
+ quat.xyz[2] = -1;
+ SetOrientationFromAccelerometer();
+ integral_error = {};
+ reset_counter = 0;
+ }
+ } else {
+ reset_counter = 0;
+ }
+}
+
+void MotionInput::SetOrientationFromAccelerometer() {
+ int iterations = 0;
+ const f32 sample_period = 0.015f;
+
+ const auto normal_accel = accel.Normalized();
+
+ while (!IsCalibrated(0.01f) && ++iterations < 100) {
+ // Short name local variable for readability
+ f32 q1 = quat.w;
+ f32 q2 = quat.xyz[0];
+ f32 q3 = quat.xyz[1];
+ f32 q4 = quat.xyz[2];
+
+ Common::Vec3f rad_gyro;
+ const f32 ax = -normal_accel.x;
+ const f32 ay = normal_accel.y;
+ const f32 az = -normal_accel.z;
+
+ // Estimated direction of gravity
+ const f32 vx = 2.0f * (q2 * q4 - q1 * q3);
+ const f32 vy = 2.0f * (q1 * q2 + q3 * q4);
+ const f32 vz = q1 * q1 - q2 * q2 - q3 * q3 + q4 * q4;
+
+ // Error is cross product between estimated direction and measured direction of gravity
+ const Common::Vec3f new_real_error = {
+ az * vx - ax * vz,
+ ay * vz - az * vy,
+ ax * vy - ay * vx,
+ };
+
+ derivative_error = new_real_error - real_error;
+ real_error = new_real_error;
+
+ rad_gyro += 10.0f * kp * real_error;
+ rad_gyro += 5.0f * ki * integral_error;
+ rad_gyro += 10.0f * kd * derivative_error;
+
+ const f32 gx = rad_gyro.y;
+ const f32 gy = rad_gyro.x;
+ const f32 gz = rad_gyro.z;
+
+ // Integrate rate of change of quaternion
+ const f32 pa = q2;
+ const f32 pb = q3;
+ const f32 pc = q4;
+ q1 = q1 + (-q2 * gx - q3 * gy - q4 * gz) * (0.5f * sample_period);
+ q2 = pa + (q1 * gx + pb * gz - pc * gy) * (0.5f * sample_period);
+ q3 = pb + (q1 * gy - pa * gz + pc * gx) * (0.5f * sample_period);
+ q4 = pc + (q1 * gz + pa * gy - pb * gx) * (0.5f * sample_period);
+
+ quat.w = q1;
+ quat.xyz[0] = q2;
+ quat.xyz[1] = q3;
+ quat.xyz[2] = q4;
+ quat = quat.Normalized();
+ }
+}
+} // namespace Core::HID
diff --git a/src/core/hid/motion_input.h b/src/core/hid/motion_input.h
new file mode 100644
index 000000000..3deef5ac3
--- /dev/null
+++ b/src/core/hid/motion_input.h
@@ -0,0 +1,71 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include "common/common_types.h"
+#include "common/quaternion.h"
+#include "common/vector_math.h"
+
+namespace Core::HID {
+
+class MotionInput {
+public:
+ explicit MotionInput();
+
+ MotionInput(const MotionInput&) = default;
+ MotionInput& operator=(const MotionInput&) = default;
+
+ MotionInput(MotionInput&&) = default;
+ MotionInput& operator=(MotionInput&&) = default;
+
+ void SetPID(f32 new_kp, f32 new_ki, f32 new_kd);
+ void SetAcceleration(const Common::Vec3f& acceleration);
+ void SetGyroscope(const Common::Vec3f& gyroscope);
+ void SetQuaternion(const Common::Quaternion<f32>& quaternion);
+ void SetGyroDrift(const Common::Vec3f& drift);
+ void SetGyroThreshold(f32 threshold);
+
+ void EnableReset(bool reset);
+ void ResetRotations();
+
+ void UpdateRotation(u64 elapsed_time);
+ void UpdateOrientation(u64 elapsed_time);
+
+ [[nodiscard]] std::array<Common::Vec3f, 3> GetOrientation() const;
+ [[nodiscard]] Common::Vec3f GetAcceleration() const;
+ [[nodiscard]] Common::Vec3f GetGyroscope() const;
+ [[nodiscard]] Common::Vec3f GetRotations() const;
+ [[nodiscard]] Common::Quaternion<f32> GetQuaternion() const;
+
+ [[nodiscard]] bool IsMoving(f32 sensitivity) const;
+ [[nodiscard]] bool IsCalibrated(f32 sensitivity) const;
+
+private:
+ void ResetOrientation();
+ void SetOrientationFromAccelerometer();
+
+ // PID constants
+ f32 kp;
+ f32 ki;
+ f32 kd;
+
+ // PID errors
+ Common::Vec3f real_error;
+ Common::Vec3f integral_error;
+ Common::Vec3f derivative_error;
+
+ Common::Quaternion<f32> quat{{0.0f, 0.0f, -1.0f}, 0.0f};
+ Common::Vec3f rotations;
+ Common::Vec3f accel;
+ Common::Vec3f gyro;
+ Common::Vec3f gyro_drift;
+
+ f32 gyro_threshold = 0.0f;
+ u32 reset_counter = 0;
+ bool reset_enabled = true;
+ bool only_accelerometer = true;
+};
+
+} // namespace Core::HID
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