Merge pull request #6267 from german77/gestureRewrite
hid: Improve hardware accuracy of gestures
This commit is contained in:
Morph
GitHub
commit
5a042bdaa1
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@ -1,10 +1,9 @@
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// Copyright 2018 yuzu emulator team
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cstring>
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "common/math_util.h"
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#include "common/settings.h"
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#include "core/core_timing.h"
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#include "core/frontend/emu_window.h"
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@ -12,10 +11,19 @@
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namespace Service::HID {
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constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3BA00;
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constexpr f32 angle_threshold = 0.08f;
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constexpr f32 pinch_threshold = 100.0f;
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Controller_Gesture::Controller_Gesture(Core::System& system_) : ControllerBase{system_} {}
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// HW is around 700, value is set to 400 to make it easier to trigger with mouse
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constexpr f32 swipe_threshold = 400.0f; // Threshold in pixels/s
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constexpr f32 angle_threshold = 0.015f; // Threshold in radians
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constexpr f32 pinch_threshold = 0.5f; // Threshold in pixels
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constexpr f32 press_delay = 0.5f; // Time in seconds
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constexpr f32 double_tap_delay = 0.35f; // Time in seconds
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constexpr f32 Square(s32 num) {
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return static_cast<f32>(num * num);
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}
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Controller_Gesture::Controller_Gesture(Core::System& system) : ControllerBase(system) {}
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Controller_Gesture::~Controller_Gesture() = default;
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void Controller_Gesture::OnInit() {
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@ -24,6 +32,8 @@ void Controller_Gesture::OnInit() {
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keyboard_finger_id[id] = MAX_POINTS;
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udp_finger_id[id] = MAX_POINTS;
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}
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shared_memory.header.entry_count = 0;
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force_update = true;
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}
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void Controller_Gesture::OnRelease() {}
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@ -38,17 +48,23 @@ void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
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shared_memory.header.last_entry_index = 0;
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return;
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}
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shared_memory.header.entry_count = 16;
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const auto& last_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
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auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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ReadTouchInput();
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cur_entry.sampling_number = last_entry.sampling_number + 1;
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cur_entry.sampling_number2 = cur_entry.sampling_number;
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GestureProperties gesture = GetGestureProperties();
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f32 time_difference = static_cast<f32>(shared_memory.header.timestamp - last_update_timestamp) /
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(1000 * 1000 * 1000);
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// TODO(german77): Implement all gesture types
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// Only update if necesary
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if (!ShouldUpdateGesture(gesture, time_difference)) {
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return;
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}
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last_update_timestamp = shared_memory.header.timestamp;
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UpdateGestureSharedMemory(data, size, gesture, time_difference);
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}
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void Controller_Gesture::ReadTouchInput() {
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const Input::TouchStatus& mouse_status = touch_mouse_device->GetStatus();
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const Input::TouchStatus& udp_status = touch_udp_device->GetStatus();
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for (std::size_t id = 0; id < mouse_status.size(); ++id) {
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@ -63,50 +79,71 @@ void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
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UpdateTouchInputEvent(keyboard_status[id], keyboard_finger_id[id]);
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}
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}
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}
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bool Controller_Gesture::ShouldUpdateGesture(const GestureProperties& gesture,
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f32 time_difference) {
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const auto& last_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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if (force_update) {
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force_update = false;
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return true;
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}
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// Update if coordinates change
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for (size_t id = 0; id < MAX_POINTS; id++) {
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if (gesture.points[id].x != last_gesture.points[id].x ||
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gesture.points[id].y != last_gesture.points[id].y) {
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return true;
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}
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}
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// Update on press and hold event after 0.5 seconds
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if (last_entry.type == TouchType::Touch && last_entry.point_count == 1 &&
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time_difference > press_delay) {
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return enable_press_and_tap;
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}
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return false;
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}
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void Controller_Gesture::UpdateGestureSharedMemory(u8* data, std::size_t size,
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GestureProperties& gesture,
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f32 time_difference) {
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TouchType type = TouchType::Idle;
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Attribute attributes{};
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GestureProperties gesture = GetGestureProperties();
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if (last_gesture.active_points != gesture.active_points) {
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++last_gesture.detection_count;
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}
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if (gesture.active_points > 0) {
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if (last_gesture.active_points == 0) {
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attributes.is_new_touch.Assign(true);
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last_gesture.average_distance = gesture.average_distance;
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last_gesture.angle = gesture.angle;
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const auto& last_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
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auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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if (shared_memory.header.entry_count < 16) {
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shared_memory.header.entry_count++;
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}
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type = TouchType::Touch;
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if (gesture.mid_point.x != last_entry.x || gesture.mid_point.y != last_entry.y) {
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type = TouchType::Pan;
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}
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if (std::abs(gesture.average_distance - last_gesture.average_distance) > pinch_threshold) {
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type = TouchType::Pinch;
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}
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if (std::abs(gesture.angle - last_gesture.angle) > angle_threshold) {
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type = TouchType::Rotate;
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}
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cur_entry.sampling_number = last_entry.sampling_number + 1;
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cur_entry.sampling_number2 = cur_entry.sampling_number;
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cur_entry.delta_x = gesture.mid_point.x - last_entry.x;
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cur_entry.delta_y = gesture.mid_point.y - last_entry.y;
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// TODO: Find how velocities are calculated
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cur_entry.vel_x = static_cast<float>(cur_entry.delta_x) * 150.1f;
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cur_entry.vel_y = static_cast<float>(cur_entry.delta_y) * 150.1f;
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// Slowdown the rate of change for less flapping
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last_gesture.average_distance =
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(last_gesture.average_distance * 0.9f) + (gesture.average_distance * 0.1f);
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last_gesture.angle = (last_gesture.angle * 0.9f) + (gesture.angle * 0.1f);
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} else {
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// Reset values to default
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cur_entry.delta_x = 0;
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cur_entry.delta_y = 0;
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cur_entry.vel_x = 0;
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cur_entry.vel_y = 0;
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cur_entry.direction = Direction::None;
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cur_entry.rotation_angle = 0;
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cur_entry.scale = 0;
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if (gesture.active_points > 0) {
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if (last_gesture.active_points == 0) {
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NewGesture(gesture, type, attributes);
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} else {
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UpdateExistingGesture(gesture, type, time_difference);
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}
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last_gesture.active_points = gesture.active_points;
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cur_entry.detection_count = last_gesture.detection_count;
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} else {
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EndGesture(gesture, last_gesture, type, attributes, time_difference);
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}
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// Apply attributes
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cur_entry.detection_count = gesture.detection_count;
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cur_entry.type = type;
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cur_entry.attributes = attributes;
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cur_entry.x = gesture.mid_point.x;
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@ -116,12 +153,190 @@ void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
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cur_entry.points[id].x = gesture.points[id].x;
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cur_entry.points[id].y = gesture.points[id].y;
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}
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cur_entry.rotation_angle = 0;
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cur_entry.scale = 0;
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last_gesture = gesture;
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std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(SharedMemory));
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}
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void Controller_Gesture::NewGesture(GestureProperties& gesture, TouchType& type,
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Attribute& attributes) {
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const auto& last_entry =
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shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
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gesture.detection_count++;
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type = TouchType::Touch;
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// New touch after cancel is not considered new
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if (last_entry.type != TouchType::Cancel) {
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attributes.is_new_touch.Assign(1);
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enable_press_and_tap = true;
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}
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}
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void Controller_Gesture::UpdateExistingGesture(GestureProperties& gesture, TouchType& type,
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f32 time_difference) {
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const auto& last_entry =
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shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
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// Promote to pan type if touch moved
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for (size_t id = 0; id < MAX_POINTS; id++) {
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if (gesture.points[id].x != last_gesture.points[id].x ||
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gesture.points[id].y != last_gesture.points[id].y) {
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type = TouchType::Pan;
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break;
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}
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}
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// Number of fingers changed cancel the last event and clear data
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if (gesture.active_points != last_gesture.active_points) {
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type = TouchType::Cancel;
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enable_press_and_tap = false;
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gesture.active_points = 0;
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gesture.mid_point = {};
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for (size_t id = 0; id < MAX_POINTS; id++) {
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gesture.points[id].x = 0;
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gesture.points[id].y = 0;
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}
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return;
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}
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// Calculate extra parameters of panning
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if (type == TouchType::Pan) {
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UpdatePanEvent(gesture, last_gesture, type, time_difference);
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return;
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}
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// Promote to press type
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if (last_entry.type == TouchType::Touch) {
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type = TouchType::Press;
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}
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}
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void Controller_Gesture::EndGesture(GestureProperties& gesture, GestureProperties& last_gesture,
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TouchType& type, Attribute& attributes, f32 time_difference) {
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const auto& last_entry =
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shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
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if (last_gesture.active_points != 0) {
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switch (last_entry.type) {
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case TouchType::Touch:
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if (enable_press_and_tap) {
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SetTapEvent(gesture, last_gesture, type, attributes);
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return;
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}
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type = TouchType::Cancel;
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force_update = true;
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break;
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case TouchType::Press:
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case TouchType::Tap:
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case TouchType::Swipe:
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case TouchType::Pinch:
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case TouchType::Rotate:
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type = TouchType::Complete;
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force_update = true;
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break;
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case TouchType::Pan:
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EndPanEvent(gesture, last_gesture, type, time_difference);
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break;
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default:
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break;
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}
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return;
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}
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if (last_entry.type == TouchType::Complete || last_entry.type == TouchType::Cancel) {
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gesture.detection_count++;
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}
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}
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void Controller_Gesture::SetTapEvent(GestureProperties& gesture, GestureProperties& last_gesture,
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TouchType& type, Attribute& attributes) {
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type = TouchType::Tap;
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gesture = last_gesture;
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force_update = true;
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f32 tap_time_difference =
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static_cast<f32>(last_update_timestamp - last_tap_timestamp) / (1000 * 1000 * 1000);
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last_tap_timestamp = last_update_timestamp;
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if (tap_time_difference < double_tap_delay) {
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attributes.is_double_tap.Assign(1);
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}
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}
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void Controller_Gesture::UpdatePanEvent(GestureProperties& gesture, GestureProperties& last_gesture,
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TouchType& type, f32 time_difference) {
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auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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const auto& last_entry =
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shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
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cur_entry.delta_x = gesture.mid_point.x - last_entry.x;
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cur_entry.delta_y = gesture.mid_point.y - last_entry.y;
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cur_entry.vel_x = static_cast<f32>(cur_entry.delta_x) / time_difference;
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cur_entry.vel_y = static_cast<f32>(cur_entry.delta_y) / time_difference;
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last_pan_time_difference = time_difference;
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// Promote to pinch type
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if (std::abs(gesture.average_distance - last_gesture.average_distance) > pinch_threshold) {
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type = TouchType::Pinch;
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cur_entry.scale = gesture.average_distance / last_gesture.average_distance;
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}
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const f32 angle_between_two_lines = std::atan((gesture.angle - last_gesture.angle) /
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(1 + (gesture.angle * last_gesture.angle)));
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// Promote to rotate type
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if (std::abs(angle_between_two_lines) > angle_threshold) {
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type = TouchType::Rotate;
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cur_entry.scale = 0;
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cur_entry.rotation_angle = angle_between_two_lines * 180.0f / Common::PI;
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}
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}
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void Controller_Gesture::EndPanEvent(GestureProperties& gesture, GestureProperties& last_gesture,
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TouchType& type, f32 time_difference) {
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auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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const auto& last_entry =
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shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
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cur_entry.vel_x =
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static_cast<f32>(last_entry.delta_x) / (last_pan_time_difference + time_difference);
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cur_entry.vel_y =
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static_cast<f32>(last_entry.delta_y) / (last_pan_time_difference + time_difference);
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const f32 curr_vel =
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std::sqrt((cur_entry.vel_x * cur_entry.vel_x) + (cur_entry.vel_y * cur_entry.vel_y));
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// Set swipe event with parameters
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if (curr_vel > swipe_threshold) {
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SetSwipeEvent(gesture, last_gesture, type);
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return;
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}
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// End panning without swipe
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type = TouchType::Complete;
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cur_entry.vel_x = 0;
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cur_entry.vel_y = 0;
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force_update = true;
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}
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void Controller_Gesture::SetSwipeEvent(GestureProperties& gesture, GestureProperties& last_gesture,
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TouchType& type) {
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auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
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const auto& last_entry =
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shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
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type = TouchType::Swipe;
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gesture = last_gesture;
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force_update = true;
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cur_entry.delta_x = last_entry.delta_x;
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cur_entry.delta_y = last_entry.delta_y;
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if (std::abs(cur_entry.delta_x) > std::abs(cur_entry.delta_y)) {
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if (cur_entry.delta_x > 0) {
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cur_entry.direction = Direction::Right;
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return;
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}
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cur_entry.direction = Direction::Left;
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return;
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}
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if (cur_entry.delta_y > 0) {
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cur_entry.direction = Direction::Down;
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return;
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}
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cur_entry.direction = Direction::Up;
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}
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void Controller_Gesture::OnLoadInputDevices() {
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touch_mouse_device = Input::CreateDevice<Input::TouchDevice>("engine:emu_window");
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touch_udp_device = Input::CreateDevice<Input::TouchDevice>("engine:cemuhookudp");
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@ -183,23 +398,33 @@ Controller_Gesture::GestureProperties Controller_Gesture::GetGestureProperties()
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for (size_t id = 0; id < gesture.active_points; ++id) {
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gesture.points[id].x =
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static_cast<int>(active_fingers[id].x * Layout::ScreenUndocked::Width);
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static_cast<s32>(active_fingers[id].x * Layout::ScreenUndocked::Width);
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gesture.points[id].y =
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static_cast<int>(active_fingers[id].y * Layout::ScreenUndocked::Height);
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gesture.mid_point.x += static_cast<int>(gesture.points[id].x / gesture.active_points);
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gesture.mid_point.y += static_cast<int>(gesture.points[id].y / gesture.active_points);
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static_cast<s32>(active_fingers[id].y * Layout::ScreenUndocked::Height);
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// Hack: There is no touch in docked but games still allow it
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if (Settings::values.use_docked_mode.GetValue()) {
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gesture.points[id].x =
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static_cast<s32>(active_fingers[id].x * Layout::ScreenDocked::Width);
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gesture.points[id].y =
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static_cast<s32>(active_fingers[id].y * Layout::ScreenDocked::Height);
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}
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gesture.mid_point.x += static_cast<s32>(gesture.points[id].x / gesture.active_points);
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gesture.mid_point.y += static_cast<s32>(gesture.points[id].y / gesture.active_points);
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}
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for (size_t id = 0; id < gesture.active_points; ++id) {
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const double distance =
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std::pow(static_cast<float>(gesture.mid_point.x - gesture.points[id].x), 2) +
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std::pow(static_cast<float>(gesture.mid_point.y - gesture.points[id].y), 2);
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gesture.average_distance +=
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static_cast<float>(distance) / static_cast<float>(gesture.active_points);
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const f32 distance = std::sqrt(Square(gesture.mid_point.x - gesture.points[id].x) +
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Square(gesture.mid_point.y - gesture.points[id].y));
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gesture.average_distance += distance / static_cast<f32>(gesture.active_points);
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}
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|
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gesture.angle = std::atan2(static_cast<float>(gesture.mid_point.y - gesture.points[0].y),
|
||||
static_cast<float>(gesture.mid_point.x - gesture.points[0].x));
|
||||
gesture.angle = std::atan2(static_cast<f32>(gesture.mid_point.y - gesture.points[0].y),
|
||||
static_cast<f32>(gesture.mid_point.x - gesture.points[0].x));
|
||||
|
||||
gesture.detection_count = last_gesture.detection_count;
|
||||
|
||||
return gesture;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
// Copyright 2018 yuzu emulator team
|
||||
// Copyright 2021 yuzu Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
|
|
@ -7,7 +7,6 @@
|
|||
#include <array>
|
||||
#include "common/bit_field.h"
|
||||
#include "common/common_types.h"
|
||||
#include "common/swap.h"
|
||||
#include "core/frontend/input.h"
|
||||
#include "core/hle/service/hid/controllers/controller_base.h"
|
||||
|
||||
|
|
@ -35,10 +34,10 @@ private:
|
|||
|
||||
enum class TouchType : u32 {
|
||||
Idle, // Nothing touching the screen
|
||||
Complete, // Unknown. End of touch?
|
||||
Cancel, // Never triggered
|
||||
Touch, // Pressing without movement
|
||||
Press, // Never triggered
|
||||
Complete, // Set at the end of a touch event
|
||||
Cancel, // Set when the number of fingers change
|
||||
Touch, // A finger just touched the screen
|
||||
Press, // Set if last type is touch and the finger hasn't moved
|
||||
Tap, // Fast press then release
|
||||
Pan, // All points moving together across the screen
|
||||
Swipe, // Fast press movement and release of a single point
|
||||
|
|
@ -58,8 +57,8 @@ private:
|
|||
union {
|
||||
u32_le raw{};
|
||||
|
||||
BitField<0, 1, u32> is_new_touch;
|
||||
BitField<1, 1, u32> is_double_tap;
|
||||
BitField<4, 1, u32> is_new_touch;
|
||||
BitField<8, 1, u32> is_double_tap;
|
||||
};
|
||||
};
|
||||
static_assert(sizeof(Attribute) == 4, "Attribute is an invalid size");
|
||||
|
|
@ -73,10 +72,9 @@ private:
|
|||
struct GestureState {
|
||||
s64_le sampling_number;
|
||||
s64_le sampling_number2;
|
||||
|
||||
s64_le detection_count;
|
||||
TouchType type;
|
||||
Direction dir;
|
||||
Direction direction;
|
||||
s32_le x;
|
||||
s32_le y;
|
||||
s32_le delta_x;
|
||||
|
|
@ -84,8 +82,8 @@ private:
|
|||
f32 vel_x;
|
||||
f32 vel_y;
|
||||
Attribute attributes;
|
||||
u32 scale;
|
||||
u32 rotation_angle;
|
||||
f32 scale;
|
||||
f32 rotation_angle;
|
||||
s32_le point_count;
|
||||
std::array<Points, 4> points;
|
||||
};
|
||||
|
|
@ -109,10 +107,46 @@ private:
|
|||
Points mid_point{};
|
||||
s64_le detection_count{};
|
||||
u64_le delta_time{};
|
||||
float average_distance{};
|
||||
float angle{};
|
||||
f32 average_distance{};
|
||||
f32 angle{};
|
||||
};
|
||||
|
||||
// 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(u8* data, std::size_t size, GestureProperties& gesture,
|
||||
f32 time_difference);
|
||||
|
||||
// Initializes new gesture
|
||||
void NewGesture(GestureProperties& gesture, TouchType& type, Attribute& attributes);
|
||||
|
||||
// Updates existing gesture state
|
||||
void UpdateExistingGesture(GestureProperties& gesture, TouchType& type, f32 time_difference);
|
||||
|
||||
// Terminates exiting gesture
|
||||
void EndGesture(GestureProperties& gesture, GestureProperties& last_gesture, TouchType& type,
|
||||
Attribute& attributes, f32 time_difference);
|
||||
|
||||
// Set current event to a tap event
|
||||
void SetTapEvent(GestureProperties& gesture, GestureProperties& last_gesture, TouchType& type,
|
||||
Attribute& attributes);
|
||||
|
||||
// Calculates and set the extra parameters related to a pan event
|
||||
void UpdatePanEvent(GestureProperties& gesture, GestureProperties& last_gesture,
|
||||
TouchType& type, f32 time_difference);
|
||||
|
||||
// Terminates the pan event
|
||||
void EndPanEvent(GestureProperties& gesture, GestureProperties& last_gesture, TouchType& type,
|
||||
f32 time_difference);
|
||||
|
||||
// Set current event to a swipe event
|
||||
void SetSwipeEvent(GestureProperties& gesture, GestureProperties& last_gesture,
|
||||
TouchType& type);
|
||||
|
||||
// Returns an unused finger id, if there is no fingers avaliable MAX_FINGERS will be returned
|
||||
std::optional<size_t> GetUnusedFingerID() const;
|
||||
|
||||
|
|
@ -134,6 +168,11 @@ private:
|
|||
std::array<size_t, MAX_FINGERS> keyboard_finger_id;
|
||||
std::array<size_t, MAX_FINGERS> udp_finger_id;
|
||||
std::array<Finger, MAX_POINTS> fingers;
|
||||
GestureProperties last_gesture;
|
||||
GestureProperties last_gesture{};
|
||||
s64_le last_update_timestamp{};
|
||||
s64_le last_tap_timestamp{};
|
||||
f32 last_pan_time_difference{};
|
||||
bool force_update{false};
|
||||
bool enable_press_and_tap{false};
|
||||
};
|
||||
} // namespace Service::HID
|
||||
|
|
|
|||
Reference in New Issue