1 files changed, 96 insertions, 0 deletions

diff --git a/src/core/hid/input_converter.h b/src/core/hid/input_converter.h
new file mode 100644
index 000000000..d24582226
--- /dev/null
+++ b/src/core/hid/input_converter.h
@@ -0,0 +1,96 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+namespace Common::Input {
+struct CallbackStatus;
+enum class BatteryLevel : u32;
+using BatteryStatus = BatteryLevel;
+struct AnalogStatus;
+struct ButtonStatus;
+struct MotionStatus;
+struct StickStatus;
+struct TouchStatus;
+struct TriggerStatus;
+}; // namespace Common::Input
+
+namespace Core::HID {
+
+/**
+ * Converts raw input data into a valid battery status.
+ *
+ * @param callback Supported callbacks: Analog, Battery, Trigger.
+ * @return A valid BatteryStatus object.
+ */
+Common::Input::BatteryStatus TransformToBattery(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid button status. Applies invert properties to the output.
+ *
+ * @param callback Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::ButtonStatus TransformToButton(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid motion status.
+ *
+ * @param callback Supported callbacks: Motion.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::MotionStatus TransformToMotion(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid stick status. Applies offset, deadzone, range and invert
+ * properties to the output.
+ *
+ * @param callback Supported callbacks: Stick.
+ * @return A valid StickStatus object.
+ */
+Common::Input::StickStatus TransformToStick(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid touch status.
+ *
+ * @param callback Supported callbacks: Touch.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::TouchStatus TransformToTouch(const Common::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 callback Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TriggerStatus object.
+ */
+Common::Input::TriggerStatus TransformToTrigger(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid analog status. Applies offset, deadzone, range and
+ * invert properties to the output.
+ *
+ * @param callback Supported callbacks: Analog.
+ * @return A valid AnalogStatus object.
+ */
+Common::Input::AnalogStatus TransformToAnalog(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw analog data into a valid analog value
+ * @param analog An analog object containing raw data and properties
+ * @param clamp_value determines if the value needs to be clamped between -1.0f and 1.0f.
+ */
+void SanitizeAnalog(Common::Input::AnalogStatus& analog, bool clamp_value);
+
+/**
+ * Converts raw stick data into a valid stick value
+ * @param analog_x raw analog data and properties for the x-axis
+ * @param analog_y raw analog data and properties for the y-axis
+ * @param clamp_value bool that determines if the value needs to be clamped into the unit circle.
+ */
+void SanitizeStick(Common::Input::AnalogStatus& analog_x, Common::Input::AnalogStatus& analog_y,
+                   bool clamp_value);
+
+} // namespace Core::HID