diff options
Diffstat (limited to 'src/input_common/helpers')
| -rw-r--r-- | src/input_common/helpers/stick_from_buttons.cpp | 304 | ||||
| -rw-r--r-- | src/input_common/helpers/stick_from_buttons.h | 30 | ||||
| -rw-r--r-- | src/input_common/helpers/touch_from_buttons.cpp | 81 | ||||
| -rw-r--r-- | src/input_common/helpers/touch_from_buttons.h | 22 | ||||
| -rw-r--r-- | src/input_common/helpers/udp_protocol.cpp | 78 | ||||
| -rw-r--r-- | src/input_common/helpers/udp_protocol.h | 290 |
6 files changed, 805 insertions, 0 deletions
diff --git a/src/input_common/helpers/stick_from_buttons.cpp b/src/input_common/helpers/stick_from_buttons.cpp new file mode 100644 index 000000000..77fcd655e --- /dev/null +++ b/src/input_common/helpers/stick_from_buttons.cpp @@ -0,0 +1,304 @@ +// Copyright 2017 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <chrono> +#include <cmath> +#include "common/math_util.h" +#include "common/settings.h" +#include "input_common/helpers/stick_from_buttons.h" + +namespace InputCommon { + +class Stick final : public Common::Input::InputDevice { +public: + using Button = std::unique_ptr<Common::Input::InputDevice>; + + Stick(Button up_, Button down_, Button left_, Button right_, Button modifier_, + float modifier_scale_, float modifier_angle_) + : up(std::move(up_)), down(std::move(down_)), left(std::move(left_)), + right(std::move(right_)), modifier(std::move(modifier_)), modifier_scale(modifier_scale_), + modifier_angle(modifier_angle_) { + Common::Input::InputCallback button_up_callback{ + [this](Common::Input::CallbackStatus callback_) { UpdateUpButtonStatus(callback_); }}; + Common::Input::InputCallback button_down_callback{ + [this](Common::Input::CallbackStatus callback_) { UpdateDownButtonStatus(callback_); }}; + Common::Input::InputCallback button_left_callback{ + [this](Common::Input::CallbackStatus callback_) { UpdateLeftButtonStatus(callback_); }}; + Common::Input::InputCallback button_right_callback{ + [this](Common::Input::CallbackStatus callback_) { + UpdateRightButtonStatus(callback_); + }}; + Common::Input::InputCallback button_modifier_callback{ + [this](Common::Input::CallbackStatus callback_) { UpdateModButtonStatus(callback_); }}; + up->SetCallback(button_up_callback); + down->SetCallback(button_down_callback); + left->SetCallback(button_left_callback); + right->SetCallback(button_right_callback); + modifier->SetCallback(button_modifier_callback); + last_x_axis_value = 0.0f; + last_y_axis_value = 0.0f; + } + + bool IsAngleGreater(float old_angle, float new_angle) const { + constexpr float TAU = Common::PI * 2.0f; + // Use wider angle to ease the transition. + constexpr float aperture = TAU * 0.15f; + const float top_limit = new_angle + aperture; + return (old_angle > new_angle && old_angle <= top_limit) || + (old_angle + TAU > new_angle && old_angle + TAU <= top_limit); + } + + bool IsAngleSmaller(float old_angle, float new_angle) const { + constexpr float TAU = Common::PI * 2.0f; + // Use wider angle to ease the transition. + constexpr float aperture = TAU * 0.15f; + const float bottom_limit = new_angle - aperture; + return (old_angle >= bottom_limit && old_angle < new_angle) || + (old_angle - TAU >= bottom_limit && old_angle - TAU < new_angle); + } + + float GetAngle(std::chrono::time_point<std::chrono::steady_clock> now) const { + constexpr float TAU = Common::PI * 2.0f; + float new_angle = angle; + + auto time_difference = static_cast<float>( + std::chrono::duration_cast<std::chrono::microseconds>(now - last_update).count()); + time_difference /= 1000.0f * 1000.0f; + if (time_difference > 0.5f) { + time_difference = 0.5f; + } + + if (IsAngleGreater(new_angle, goal_angle)) { + new_angle -= modifier_angle * time_difference; + if (new_angle < 0) { + new_angle += TAU; + } + if (!IsAngleGreater(new_angle, goal_angle)) { + return goal_angle; + } + } else if (IsAngleSmaller(new_angle, goal_angle)) { + new_angle += modifier_angle * time_difference; + if (new_angle >= TAU) { + new_angle -= TAU; + } + if (!IsAngleSmaller(new_angle, goal_angle)) { + return goal_angle; + } + } else { + return goal_angle; + } + return new_angle; + } + + void SetGoalAngle(bool r, bool l, bool u, bool d) { + // Move to the right + if (r && !u && !d) { + goal_angle = 0.0f; + } + + // Move to the upper right + if (r && u && !d) { + goal_angle = Common::PI * 0.25f; + } + + // Move up + if (u && !l && !r) { + goal_angle = Common::PI * 0.5f; + } + + // Move to the upper left + if (l && u && !d) { + goal_angle = Common::PI * 0.75f; + } + + // Move to the left + if (l && !u && !d) { + goal_angle = Common::PI; + } + + // Move to the bottom left + if (l && !u && d) { + goal_angle = Common::PI * 1.25f; + } + + // Move down + if (d && !l && !r) { + goal_angle = Common::PI * 1.5f; + } + + // Move to the bottom right + if (r && !u && d) { + goal_angle = Common::PI * 1.75f; + } + } + + void UpdateUpButtonStatus(Common::Input::CallbackStatus button_callback) { + up_status = button_callback.button_status.value; + UpdateStatus(); + } + + void UpdateDownButtonStatus(Common::Input::CallbackStatus button_callback) { + down_status = button_callback.button_status.value; + UpdateStatus(); + } + + void UpdateLeftButtonStatus(Common::Input::CallbackStatus button_callback) { + left_status = button_callback.button_status.value; + UpdateStatus(); + } + + void UpdateRightButtonStatus(Common::Input::CallbackStatus button_callback) { + right_status = button_callback.button_status.value; + UpdateStatus(); + } + + void UpdateModButtonStatus(Common::Input::CallbackStatus button_callback) { + modifier_status = button_callback.button_status.value; + UpdateStatus(); + } + + void UpdateStatus() { + const float coef = modifier_status ? modifier_scale : 1.0f; + + bool r = right_status; + bool l = left_status; + bool u = up_status; + bool d = down_status; + + // Eliminate contradictory movements + if (r && l) { + r = false; + l = false; + } + if (u && d) { + u = false; + d = false; + } + + // Move if a key is pressed + if (r || l || u || d) { + amplitude = coef; + } else { + amplitude = 0; + } + + const auto now = std::chrono::steady_clock::now(); + const auto time_difference = static_cast<u64>( + std::chrono::duration_cast<std::chrono::milliseconds>(now - last_update).count()); + + if (time_difference < 10) { + // Disable analog mode if inputs are too fast + SetGoalAngle(r, l, u, d); + angle = goal_angle; + } else { + angle = GetAngle(now); + SetGoalAngle(r, l, u, d); + } + + last_update = now; + Common::Input::CallbackStatus status{ + .type = Common::Input::InputType::Stick, + .stick_status = GetStatus(), + }; + last_x_axis_value = status.stick_status.x.raw_value; + last_y_axis_value = status.stick_status.y.raw_value; + TriggerOnChange(status); + } + + void ForceUpdate() override { + up->ForceUpdate(); + down->ForceUpdate(); + left->ForceUpdate(); + right->ForceUpdate(); + modifier->ForceUpdate(); + } + + void SoftUpdate() override { + Common::Input::CallbackStatus status{ + .type = Common::Input::InputType::Stick, + .stick_status = GetStatus(), + }; + if (last_x_axis_value == status.stick_status.x.raw_value && + last_y_axis_value == status.stick_status.y.raw_value) { + return; + } + last_x_axis_value = status.stick_status.x.raw_value; + last_y_axis_value = status.stick_status.y.raw_value; + TriggerOnChange(status); + } + + Common::Input::StickStatus GetStatus() const { + Common::Input::StickStatus status{}; + status.x.properties = properties; + status.y.properties = properties; + if (Settings::values.emulate_analog_keyboard) { + const auto now = std::chrono::steady_clock::now(); + float angle_ = GetAngle(now); + status.x.raw_value = std::cos(angle_) * amplitude; + status.y.raw_value = std::sin(angle_) * amplitude; + return status; + } + constexpr float SQRT_HALF = 0.707106781f; + int x = 0, y = 0; + if (right_status) { + ++x; + } + if (left_status) { + --x; + } + if (up_status) { + ++y; + } + if (down_status) { + --y; + } + const float coef = modifier_status ? modifier_scale : 1.0f; + status.x.raw_value = static_cast<float>(x) * coef * (y == 0 ? 1.0f : SQRT_HALF); + status.y.raw_value = static_cast<float>(y) * coef * (x == 0 ? 1.0f : SQRT_HALF); + return status; + } + +private: + Button up; + Button down; + Button left; + Button right; + Button modifier; + float modifier_scale; + float modifier_angle; + float angle{}; + float goal_angle{}; + float amplitude{}; + bool up_status; + bool down_status; + bool left_status; + bool right_status; + bool modifier_status; + float last_x_axis_value; + float last_y_axis_value; + const Common::Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false}; + std::chrono::time_point<std::chrono::steady_clock> last_update; +}; + +std::unique_ptr<Common::Input::InputDevice> StickFromButton::Create( + const Common::ParamPackage& params) { + const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize(); + auto up = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>( + params.Get("up", null_engine)); + auto down = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>( + params.Get("down", null_engine)); + auto left = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>( + params.Get("left", null_engine)); + auto right = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>( + params.Get("right", null_engine)); + auto modifier = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>( + params.Get("modifier", null_engine)); + auto modifier_scale = params.Get("modifier_scale", 0.5f); + auto modifier_angle = params.Get("modifier_angle", 5.5f); + return std::make_unique<Stick>(std::move(up), std::move(down), std::move(left), + std::move(right), std::move(modifier), modifier_scale, + modifier_angle); +} + +} // namespace InputCommon diff --git a/src/input_common/helpers/stick_from_buttons.h b/src/input_common/helpers/stick_from_buttons.h new file mode 100644 index 000000000..437ace4f7 --- /dev/null +++ b/src/input_common/helpers/stick_from_buttons.h @@ -0,0 +1,30 @@ +// Copyright 2017 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/input.h" + +namespace InputCommon { + +/** + * An analog device factory that takes direction button devices and combines them into a analog + * device. + */ +class StickFromButton final : public Common::Input::Factory<Common::Input::InputDevice> { +public: + /** + * Creates an analog device from direction button devices + * @param params contains parameters for creating the device: + * - "up": a serialized ParamPackage for creating a button device for up direction + * - "down": a serialized ParamPackage for creating a button device for down direction + * - "left": a serialized ParamPackage for creating a button device for left direction + * - "right": a serialized ParamPackage for creating a button device for right direction + * - "modifier": a serialized ParamPackage for creating a button device as the modifier + * - "modifier_scale": a float for the multiplier the modifier gives to the position + */ + std::unique_ptr<Common::Input::InputDevice> Create(const Common::ParamPackage& params) override; +}; + +} // namespace InputCommon diff --git a/src/input_common/helpers/touch_from_buttons.cpp b/src/input_common/helpers/touch_from_buttons.cpp new file mode 100644 index 000000000..35d60bc90 --- /dev/null +++ b/src/input_common/helpers/touch_from_buttons.cpp @@ -0,0 +1,81 @@ +// Copyright 2020 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> +#include "common/settings.h" +#include "core/frontend/framebuffer_layout.h" +#include "input_common/helpers/touch_from_buttons.h" + +namespace InputCommon { + +class TouchFromButtonDevice final : public Common::Input::InputDevice { +public: + using Button = std::unique_ptr<Common::Input::InputDevice>; + TouchFromButtonDevice(Button button_, int touch_id_, float x_, float y_) + : button(std::move(button_)), touch_id(touch_id_), x(x_), y(y_) { + Common::Input::InputCallback button_up_callback{ + [this](Common::Input::CallbackStatus callback_) { UpdateButtonStatus(callback_); }}; + last_button_value = false; + button->SetCallback(button_up_callback); + button->ForceUpdate(); + } + + void ForceUpdate() override { + button->ForceUpdate(); + } + + Common::Input::TouchStatus GetStatus(bool pressed) const { + const Common::Input::ButtonStatus button_status{ + .value = pressed, + }; + Common::Input::TouchStatus status{ + .pressed = button_status, + .x = {}, + .y = {}, + .id = touch_id, + }; + status.x.properties = properties; + status.y.properties = properties; + + if (!pressed) { + return status; + } + + status.x.raw_value = x; + status.y.raw_value = y; + return status; + } + + void UpdateButtonStatus(Common::Input::CallbackStatus button_callback) { + const Common::Input::CallbackStatus status{ + .type = Common::Input::InputType::Touch, + .touch_status = GetStatus(button_callback.button_status.value), + }; + if (last_button_value != button_callback.button_status.value) { + last_button_value = button_callback.button_status.value; + TriggerOnChange(status); + } + } + +private: + Button button; + bool last_button_value; + const int touch_id; + const float x; + const float y; + const Common::Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false}; +}; + +std::unique_ptr<Common::Input::InputDevice> TouchFromButton::Create( + const Common::ParamPackage& params) { + const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize(); + auto button = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>( + params.Get("button", null_engine)); + const auto touch_id = params.Get("touch_id", 0); + const float x = params.Get("x", 0.0f) / 1280.0f; + const float y = params.Get("y", 0.0f) / 720.0f; + return std::make_unique<TouchFromButtonDevice>(std::move(button), touch_id, x, y); +} + +} // namespace InputCommon diff --git a/src/input_common/helpers/touch_from_buttons.h b/src/input_common/helpers/touch_from_buttons.h new file mode 100644 index 000000000..628f18215 --- /dev/null +++ b/src/input_common/helpers/touch_from_buttons.h @@ -0,0 +1,22 @@ +// Copyright 2020 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/input.h" + +namespace InputCommon { + +/** + * A touch device factory that takes a list of button devices and combines them into a touch device. + */ +class TouchFromButton final : public Common::Input::Factory<Common::Input::InputDevice> { +public: + /** + * Creates a touch device from a list of button devices + */ + std::unique_ptr<Common::Input::InputDevice> Create(const Common::ParamPackage& params) override; +}; + +} // namespace InputCommon diff --git a/src/input_common/helpers/udp_protocol.cpp b/src/input_common/helpers/udp_protocol.cpp new file mode 100644 index 000000000..cdeab7e11 --- /dev/null +++ b/src/input_common/helpers/udp_protocol.cpp @@ -0,0 +1,78 @@ +// Copyright 2018 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <cstddef> +#include <cstring> +#include "common/logging/log.h" +#include "input_common/helpers/udp_protocol.h" + +namespace InputCommon::CemuhookUDP { + +static constexpr std::size_t GetSizeOfResponseType(Type t) { + switch (t) { + case Type::Version: + return sizeof(Response::Version); + case Type::PortInfo: + return sizeof(Response::PortInfo); + case Type::PadData: + return sizeof(Response::PadData); + } + return 0; +} + +namespace Response { + +/** + * Returns Type if the packet is valid, else none + * + * Note: Modifies the buffer to zero out the crc (since thats the easiest way to check without + * copying the buffer) + */ +std::optional<Type> Validate(u8* data, std::size_t size) { + if (size < sizeof(Header)) { + return std::nullopt; + } + Header header{}; + std::memcpy(&header, data, sizeof(Header)); + if (header.magic != SERVER_MAGIC) { + LOG_ERROR(Input, "UDP Packet has an unexpected magic value"); + return std::nullopt; + } + if (header.protocol_version != PROTOCOL_VERSION) { + LOG_ERROR(Input, "UDP Packet protocol mismatch"); + return std::nullopt; + } + if (header.type < Type::Version || header.type > Type::PadData) { + LOG_ERROR(Input, "UDP Packet is an unknown type"); + return std::nullopt; + } + + // Packet size must equal sizeof(Header) + sizeof(Data) + // and also verify that the packet info mentions the correct size. Since the spec includes the + // type of the packet as part of the data, we need to include it in size calculations here + // ie: payload_length == sizeof(T) + sizeof(Type) + const std::size_t data_len = GetSizeOfResponseType(header.type); + if (header.payload_length != data_len + sizeof(Type) || size < data_len + sizeof(Header)) { + LOG_ERROR( + Input, + "UDP Packet payload length doesn't match. Received: {} PayloadLength: {} Expected: {}", + size, header.payload_length, data_len + sizeof(Type)); + return std::nullopt; + } + + const u32 crc32 = header.crc; + boost::crc_32_type result; + // zero out the crc in the buffer and then run the crc against it + std::memset(&data[offsetof(Header, crc)], 0, sizeof(u32_le)); + + result.process_bytes(data, data_len + sizeof(Header)); + if (crc32 != result.checksum()) { + LOG_ERROR(Input, "UDP Packet CRC check failed. Offset: {}", offsetof(Header, crc)); + return std::nullopt; + } + return header.type; +} +} // namespace Response + +} // namespace InputCommon::CemuhookUDP diff --git a/src/input_common/helpers/udp_protocol.h b/src/input_common/helpers/udp_protocol.h new file mode 100644 index 000000000..bcba12c58 --- /dev/null +++ b/src/input_common/helpers/udp_protocol.h @@ -0,0 +1,290 @@ +// Copyright 2018 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> +#include <optional> +#include <type_traits> + +#include <boost/crc.hpp> + +#include "common/bit_field.h" +#include "common/swap.h" + +namespace InputCommon::CemuhookUDP { + +constexpr std::size_t MAX_PACKET_SIZE = 100; +constexpr u16 PROTOCOL_VERSION = 1001; +constexpr u32 CLIENT_MAGIC = 0x43555344; // DSUC (but flipped for LE) +constexpr u32 SERVER_MAGIC = 0x53555344; // DSUS (but flipped for LE) + +enum class Type : u32 { + Version = 0x00100000, + PortInfo = 0x00100001, + PadData = 0x00100002, +}; + +struct Header { + u32_le magic{}; + u16_le protocol_version{}; + u16_le payload_length{}; + u32_le crc{}; + u32_le id{}; + ///> In the protocol, the type of the packet is not part of the header, but its convenient to + ///> include in the header so the callee doesn't have to duplicate the type twice when building + ///> the data + Type type{}; +}; +static_assert(sizeof(Header) == 20, "UDP Message Header struct has wrong size"); +static_assert(std::is_trivially_copyable_v<Header>, "UDP Message Header is not trivially copyable"); + +using MacAddress = std::array<u8, 6>; +constexpr MacAddress EMPTY_MAC_ADDRESS = {0, 0, 0, 0, 0, 0}; + +#pragma pack(push, 1) +template <typename T> +struct Message { + Header header{}; + T data; +}; +#pragma pack(pop) + +template <typename T> +constexpr Type GetMessageType(); + +namespace Request { + +enum RegisterFlags : u8 { + AllPads, + PadID, + PadMACAdddress, +}; + +struct Version {}; +/** + * Requests the server to send information about what controllers are plugged into the ports + * In citra's case, we only have one controller, so for simplicity's sake, we can just send a + * request explicitly for the first controller port and leave it at that. In the future it would be + * nice to make this configurable + */ +constexpr u32 MAX_PORTS = 4; +struct PortInfo { + u32_le pad_count{}; ///> Number of ports to request data for + std::array<u8, MAX_PORTS> port; +}; +static_assert(std::is_trivially_copyable_v<PortInfo>, + "UDP Request PortInfo is not trivially copyable"); + +/** + * Request the latest pad information from the server. If the server hasn't received this message + * from the client in a reasonable time frame, the server will stop sending updates. The default + * timeout seems to be 5 seconds. + */ +struct PadData { + /// Determines which method will be used as a look up for the controller + RegisterFlags flags{}; + /// Index of the port of the controller to retrieve data about + u8 port_id{}; + /// Mac address of the controller to retrieve data about + MacAddress mac; +}; +static_assert(sizeof(PadData) == 8, "UDP Request PadData struct has wrong size"); +static_assert(std::is_trivially_copyable_v<PadData>, + "UDP Request PadData is not trivially copyable"); + +/** + * Creates a message with the proper header data that can be sent to the server. + * @param data Request body to send + * @param client_id ID of the udp client (usually not checked on the server) + */ +template <typename T> +Message<T> Create(const T data, const u32 client_id = 0) { + boost::crc_32_type crc; + Header header{ + CLIENT_MAGIC, PROTOCOL_VERSION, sizeof(T) + sizeof(Type), 0, client_id, GetMessageType<T>(), + }; + Message<T> message{header, data}; + crc.process_bytes(&message, sizeof(Message<T>)); + message.header.crc = crc.checksum(); + return message; +} +} // namespace Request + +namespace Response { + +enum class ConnectionType : u8 { + None, + Usb, + Bluetooth, +}; + +enum class State : u8 { + Disconnected, + Reserved, + Connected, +}; + +enum class Model : u8 { + None, + PartialGyro, + FullGyro, + Generic, +}; + +enum class Battery : u8 { + None = 0x00, + Dying = 0x01, + Low = 0x02, + Medium = 0x03, + High = 0x04, + Full = 0x05, + Charging = 0xEE, + Charged = 0xEF, +}; + +struct Version { + u16_le version{}; +}; +static_assert(sizeof(Version) == 2, "UDP Response Version struct has wrong size"); +static_assert(std::is_trivially_copyable_v<Version>, + "UDP Response Version is not trivially copyable"); + +struct PortInfo { + u8 id{}; + State state{}; + Model model{}; + ConnectionType connection_type{}; + MacAddress mac; + Battery battery{}; + u8 is_pad_active{}; +}; +static_assert(sizeof(PortInfo) == 12, "UDP Response PortInfo struct has wrong size"); +static_assert(std::is_trivially_copyable_v<PortInfo>, + "UDP Response PortInfo is not trivially copyable"); + +struct TouchPad { + u8 is_active{}; + u8 id{}; + u16_le x{}; + u16_le y{}; +}; +static_assert(sizeof(TouchPad) == 6, "UDP Response TouchPad struct has wrong size "); + +#pragma pack(push, 1) +struct PadData { + PortInfo info{}; + u32_le packet_counter{}; + + u16_le digital_button{}; + // The following union isn't trivially copyable but we don't use this input anyway. + // union DigitalButton { + // u16_le button; + // BitField<0, 1, u16> button_1; // Share + // BitField<1, 1, u16> button_2; // L3 + // BitField<2, 1, u16> button_3; // R3 + // BitField<3, 1, u16> button_4; // Options + // BitField<4, 1, u16> button_5; // Up + // BitField<5, 1, u16> button_6; // Right + // BitField<6, 1, u16> button_7; // Down + // BitField<7, 1, u16> button_8; // Left + // BitField<8, 1, u16> button_9; // L2 + // BitField<9, 1, u16> button_10; // R2 + // BitField<10, 1, u16> button_11; // L1 + // BitField<11, 1, u16> button_12; // R1 + // BitField<12, 1, u16> button_13; // Triangle + // BitField<13, 1, u16> button_14; // Circle + // BitField<14, 1, u16> button_15; // Cross + // BitField<15, 1, u16> button_16; // Square + // } digital_button; + + u8 home; + /// If the device supports a "click" on the touchpad, this will change to 1 when a click happens + u8 touch_hard_press{}; + u8 left_stick_x{}; + u8 left_stick_y{}; + u8 right_stick_x{}; + u8 right_stick_y{}; + + struct AnalogButton { + u8 button_dpad_left_analog{}; + u8 button_dpad_down_analog{}; + u8 button_dpad_right_analog{}; + u8 button_dpad_up_analog{}; + u8 button_square_analog{}; + u8 button_cross_analog{}; + u8 button_circle_analog{}; + u8 button_triangle_analog{}; + u8 button_r1_analog{}; + u8 button_l1_analog{}; + u8 trigger_r2{}; + u8 trigger_l2{}; + } analog_button; + + std::array<TouchPad, 2> touch; + + u64_le motion_timestamp; + + struct Accelerometer { + float x{}; + float y{}; + float z{}; + } accel; + + struct Gyroscope { + float pitch{}; + float yaw{}; + float roll{}; + } gyro; +}; +#pragma pack(pop) + +static_assert(sizeof(PadData) == 80, "UDP Response PadData struct has wrong size "); +static_assert(std::is_trivially_copyable_v<PadData>, + "UDP Response PadData is not trivially copyable"); + +static_assert(sizeof(Message<PadData>) == MAX_PACKET_SIZE, + "UDP MAX_PACKET_SIZE is no longer larger than Message<PadData>"); + +static_assert(sizeof(PadData::AnalogButton) == 12, + "UDP Response AnalogButton struct has wrong size "); +static_assert(sizeof(PadData::Accelerometer) == 12, + "UDP Response Accelerometer struct has wrong size "); +static_assert(sizeof(PadData::Gyroscope) == 12, "UDP Response Gyroscope struct has wrong size "); + +/** + * Create a Response Message from the data + * @param data array of bytes sent from the server + * @return boost::none if it failed to parse or Type if it succeeded. The client can then safely + * copy the data into the appropriate struct for that Type + */ +std::optional<Type> Validate(u8* data, std::size_t size); + +} // namespace Response + +template <> +constexpr Type GetMessageType<Request::Version>() { + return Type::Version; +} +template <> +constexpr Type GetMessageType<Request::PortInfo>() { + return Type::PortInfo; +} +template <> +constexpr Type GetMessageType<Request::PadData>() { + return Type::PadData; +} +template <> +constexpr Type GetMessageType<Response::Version>() { + return Type::Version; +} +template <> +constexpr Type GetMessageType<Response::PortInfo>() { + return Type::PortInfo; +} +template <> +constexpr Type GetMessageType<Response::PadData>() { + return Type::PadData; +} +} // namespace InputCommon::CemuhookUDP |