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// Copyright 2018 yuzu emulator team
// 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/swap.h"
#include "core/frontend/input.h"
#include "core/hle/service/hid/controllers/controller_base.h"
namespace Service::HID {
class Controller_Touchscreen final : public ControllerBase {
public:
enum class TouchScreenModeForNx : u8 {
UseSystemSetting,
Finger,
Heat2,
};
struct TouchScreenConfigurationForNx {
TouchScreenModeForNx mode;
INSERT_PADDING_BYTES_NOINIT(0x7);
INSERT_PADDING_BYTES_NOINIT(0xF); // Reserved
};
static_assert(sizeof(TouchScreenConfigurationForNx) == 0x17,
"TouchScreenConfigurationForNx is an invalid size");
explicit Controller_Touchscreen(Core::System& system_);
~Controller_Touchscreen() 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, u8* data, std::size_t size) override;
// Called when input devices should be loaded
void OnLoadInputDevices() override;
private:
static constexpr std::size_t MAX_FINGERS = 16;
// Returns an unused finger id, if there is no fingers available std::nullopt will be returned
std::optional<std::size_t> GetUnusedFingerID() const;
// If the touch is new it tries to assing a new finger id, if there is no fingers avaliable no
// changes will be made. Updates the coordinates if the finger id it's already set. If the touch
// ends delays the output by one frame to set the end_touch flag before finally freeing the
// finger id
std::size_t UpdateTouchInputEvent(const std::tuple<float, float, bool>& touch_input,
std::size_t finger_id);
struct Attributes {
union {
u32 raw{};
BitField<0, 1, u32> start_touch;
BitField<1, 1, u32> end_touch;
};
};
static_assert(sizeof(Attributes) == 0x4, "Attributes is an invalid size");
struct TouchState {
u64_le delta_time;
Attributes 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");
struct TouchScreenEntry {
s64_le sampling_number;
s64_le sampling_number2;
s32_le entry_count;
std::array<TouchState, MAX_FINGERS> states;
};
static_assert(sizeof(TouchScreenEntry) == 0x298, "TouchScreenEntry is an invalid size");
struct TouchScreenSharedMemory {
CommonHeader header;
std::array<TouchScreenEntry, 17> shared_memory_entries{};
INSERT_PADDING_BYTES(0x3c8);
};
static_assert(sizeof(TouchScreenSharedMemory) == 0x3000,
"TouchScreenSharedMemory is an invalid size");
struct Finger {
u64_le last_touch{};
Common::Point<float> position;
u32_le id{};
bool pressed{};
Attributes attribute;
};
TouchScreenSharedMemory shared_memory{};
std::unique_ptr<Input::TouchDevice> touch_mouse_device;
std::unique_ptr<Input::TouchDevice> touch_udp_device;
std::unique_ptr<Input::TouchDevice> touch_btn_device;
std::array<std::size_t, MAX_FINGERS> mouse_finger_id;
std::array<std::size_t, MAX_FINGERS> keyboard_finger_id;
std::array<std::size_t, MAX_FINGERS> udp_finger_id;
std::array<Finger, MAX_FINGERS> fingers;
};
} // namespace Service::HID
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