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// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include "common/common_types.h"
#include "core/hle/service/hid/controllers/controller_base.h"
#include "core/hle/service/hid/controllers/types/touch_types.h"
namespace Core::HID {
class EmulatedConsole;
}
namespace Service::HID {
struct GestureSharedMemoryFormat;
class Gesture final : public ControllerBase {
public:
explicit Gesture(Core::HID::HIDCore& hid_core_,
GestureSharedMemoryFormat& gesture_shared_memory);
~Gesture() override;
// Called when the controller is initialized
void OnInit() override;
// When the controller is released
void OnRelease() override;
// When the controller is requesting an update for the shared memory
void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
private:
// Reads input from all available input engines
void ReadTouchInput();
// Returns true if gesture state needs to be updated
bool ShouldUpdateGesture(const GestureProperties& gesture, f32 time_difference);
// Updates the shared memory to the next state
void UpdateGestureSharedMemory(GestureProperties& gesture, f32 time_difference);
// Initializes new gesture
void NewGesture(GestureProperties& gesture, GestureType& type, GestureAttribute& attributes);
// Updates existing gesture state
void UpdateExistingGesture(GestureProperties& gesture, GestureType& type, f32 time_difference);
// Terminates exiting gesture
void EndGesture(GestureProperties& gesture, GestureProperties& last_gesture_props,
GestureType& type, GestureAttribute& attributes, f32 time_difference);
// Set current event to a tap event
void SetTapEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
GestureType& type, GestureAttribute& attributes);
// Calculates and set the extra parameters related to a pan event
void UpdatePanEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
GestureType& type, f32 time_difference);
// Terminates the pan event
void EndPanEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
GestureType& type, f32 time_difference);
// Set current event to a swipe event
void SetSwipeEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
GestureType& type);
// Retrieves the last gesture entry, as indicated by shared memory indices.
[[nodiscard]] const GestureState& GetLastGestureEntry() const;
// Returns the average distance, angle and middle point of the active fingers
GestureProperties GetGestureProperties();
GestureState next_state{};
GestureSharedMemoryFormat& shared_memory;
Core::HID::EmulatedConsole* console = nullptr;
std::array<Core::HID::TouchFinger, MAX_POINTS> fingers{};
GestureProperties last_gesture{};
s64 last_update_timestamp{};
s64 last_tap_timestamp{};
f32 last_pan_time_difference{};
bool force_update{false};
bool enable_press_and_tap{false};
};
} // namespace Service::HID
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