input_common: touch: Rewrite touch driver to support multiple touch points

This commit is contained in:
german77 2022-05-22 20:34:32 -05:00 committed by Narr the Reg
parent 4eb7f6c044
commit c82806f9cb
8 changed files with 140 additions and 92 deletions

View file

@ -27,12 +27,19 @@ void EmulatedConsole::SetTouchParams() {
// We can't use mouse as touch if native mouse is enabled
touch_params[index++] = Common::ParamPackage{"engine:mouse,axis_x:10,axis_y:11,button:0"};
}
touch_params[index++] = Common::ParamPackage{"engine:touch,axis_x:0,axis_y:1,button:0"};
touch_params[index++] = Common::ParamPackage{"engine:touch,axis_x:2,axis_y:3,button:1"};
touch_params[index++] =
Common::ParamPackage{"engine:cemuhookudp,axis_x:17,axis_y:18,button:65536"};
Common::ParamPackage{"engine:touch,axis_x:0,axis_y:1,button:0,touch_id:0"};
touch_params[index++] =
Common::ParamPackage{"engine:cemuhookudp,axis_x:19,axis_y:20,button:131072"};
Common::ParamPackage{"engine:touch,axis_x:2,axis_y:3,button:1,touch_id:1"};
touch_params[index++] =
Common::ParamPackage{"engine:touch,axis_x:4,axis_y:5,button:2,touch_id:2"};
touch_params[index++] =
Common::ParamPackage{"engine:touch,axis_x:6,axis_y:7,button:3,touch_id:3"};
touch_params[index++] =
Common::ParamPackage{"engine:cemuhookudp,axis_x:17,axis_y:18,button:65536,touch_id:0"};
touch_params[index++] =
Common::ParamPackage{"engine:cemuhookudp,axis_x:19,axis_y:20,button:131072,touch_id:1"};
const auto button_index =
static_cast<u64>(Settings::values.touch_from_button_map_index.GetValue());

View file

@ -1,6 +1,7 @@
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <random>
#include "common/input.h"
@ -196,6 +197,9 @@ Common::Input::TouchStatus TransformToTouch(const Common::Input::CallbackStatus&
x = std::clamp(x, 0.0f, 1.0f);
y = std::clamp(y, 0.0f, 1.0f);
// Limit id to maximum number of fingers
status.id = std::clamp(status.id, 0, 16);
if (status.pressed.inverted) {
status.pressed.value = !status.pressed.value;
}

View file

@ -44,7 +44,6 @@ void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timin
for (std::size_t id = 0; id < MAX_FINGERS; id++) {
const auto& current_touch = touch_status[id];
auto& finger = fingers[id];
finger.position = current_touch.position;
finger.id = current_touch.id;
if (finger.attribute.start_touch) {
@ -61,13 +60,18 @@ void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timin
if (!finger.pressed && current_touch.pressed) {
finger.attribute.start_touch.Assign(1);
finger.pressed = true;
finger.position = current_touch.position;
continue;
}
if (finger.pressed && !current_touch.pressed) {
finger.attribute.raw = 0;
finger.attribute.end_touch.Assign(1);
continue;
}
// Only update position if touch is not on a special frame
finger.position = current_touch.position;
}
std::array<Core::HID::TouchFinger, MAX_FINGERS> active_fingers;

View file

@ -14,38 +14,93 @@ constexpr PadIdentifier identifier = {
TouchScreen::TouchScreen(std::string input_engine_) : InputEngine(std::move(input_engine_)) {
PreSetController(identifier);
ReleaseAllTouch();
}
void TouchScreen::TouchMoved(float x, float y, std::size_t finger) {
if (finger >= 16) {
void TouchScreen::TouchMoved(float x, float y, std::size_t finger_id) {
const auto index = GetIndexFromFingerId(finger_id);
if (!index) {
// Touch doesn't exist handle it as a new one
TouchPressed(x, y, finger_id);
return;
}
TouchPressed(x, y, finger);
const auto i = index.value();
fingers[i].is_active = true;
SetButton(identifier, static_cast<int>(i), true);
SetAxis(identifier, static_cast<int>(i * 2), x);
SetAxis(identifier, static_cast<int>(i * 2 + 1), y);
}
void TouchScreen::TouchPressed(float x, float y, std::size_t finger) {
if (finger >= 16) {
void TouchScreen::TouchPressed(float x, float y, std::size_t finger_id) {
if (GetIndexFromFingerId(finger_id)) {
// Touch already exist. Just update the data
TouchMoved(x, y, finger_id);
return;
}
SetButton(identifier, static_cast<int>(finger), true);
SetAxis(identifier, static_cast<int>(finger * 2), x);
SetAxis(identifier, static_cast<int>(finger * 2 + 1), y);
const auto index = GetNextFreeIndex();
if (!index) {
// No free entries. Ignore input
return;
}
const auto i = index.value();
fingers[i].is_enabled = true;
fingers[i].finger_id = finger_id;
TouchMoved(x, y, finger_id);
}
void TouchScreen::TouchReleased(std::size_t finger) {
if (finger >= 16) {
void TouchScreen::TouchReleased(std::size_t finger_id) {
const auto index = GetIndexFromFingerId(finger_id);
if (!index) {
return;
}
SetButton(identifier, static_cast<int>(finger), false);
SetAxis(identifier, static_cast<int>(finger * 2), 0.0f);
SetAxis(identifier, static_cast<int>(finger * 2 + 1), 0.0f);
const auto i = index.value();
fingers[i].is_enabled = false;
SetButton(identifier, static_cast<int>(i), false);
SetAxis(identifier, static_cast<int>(i * 2), 0.0f);
SetAxis(identifier, static_cast<int>(i * 2 + 1), 0.0f);
}
std::optional<std::size_t> TouchScreen::GetIndexFromFingerId(std::size_t finger_id) const {
for (std::size_t index = 0; index < MAX_FINGER_COUNT; ++index) {
const auto& finger = fingers[index];
if (!finger.is_enabled) {
continue;
}
if (finger.finger_id == finger_id) {
return index;
}
}
return std::nullopt;
}
std::optional<std::size_t> TouchScreen::GetNextFreeIndex() const {
for (std::size_t index = 0; index < MAX_FINGER_COUNT; ++index) {
if (!fingers[index].is_enabled) {
return index;
}
}
return std::nullopt;
}
void TouchScreen::ClearActiveFlag() {
for (auto& finger : fingers) {
finger.is_active = false;
}
}
void TouchScreen::ReleaseInactiveTouch() {
for (const auto& finger : fingers) {
if (!finger.is_active) {
TouchReleased(finger.finger_id);
}
}
}
void TouchScreen::ReleaseAllTouch() {
for (int index = 0; index < 16; ++index) {
SetButton(identifier, index, false);
SetAxis(identifier, index * 2, 0.0f);
SetAxis(identifier, index * 2 + 1, 0.0f);
for (const auto& finger : fingers) {
if (finger.is_enabled) {
TouchReleased(finger.finger_id);
}
}
}

View file

@ -3,41 +3,65 @@
#pragma once
#include <optional>
#include "input_common/input_engine.h"
namespace InputCommon {
/**
* A button device factory representing a keyboard. It receives keyboard events and forward them
* to all button devices it created.
* A touch device factory representing a touch screen. It receives touch events and forward them
* to all touch devices it created.
*/
class TouchScreen final : public InputEngine {
public:
explicit TouchScreen(std::string input_engine_);
/**
* Signals that mouse has moved.
* @param x the x-coordinate of the cursor
* @param y the y-coordinate of the cursor
* @param center_x the x-coordinate of the middle of the screen
* @param center_y the y-coordinate of the middle of the screen
* Signals that touch has moved and marks this touch point as active
* @param x new horizontal position
* @param y new vertical position
* @param finger_id of the touch point to be updated
*/
void TouchMoved(float x, float y, std::size_t finger);
void TouchMoved(float x, float y, std::size_t finger_id);
/**
* Sets the status of all buttons bound with the key to pressed
* @param key_code the code of the key to press
* Signals and creates a new touch point with this finger id
* @param x starting horizontal position
* @param y starting vertical position
* @param finger_id to be assigned to the new touch point
*/
void TouchPressed(float x, float y, std::size_t finger);
void TouchPressed(float x, float y, std::size_t finger_id);
/**
* Sets the status of all buttons bound with the key to released
* @param key_code the code of the key to release
* Signals and resets the touch point related to the this finger id
* @param finger_id to be released
*/
void TouchReleased(std::size_t finger);
void TouchReleased(std::size_t finger_id);
/// Resets the active flag for each touch point
void ClearActiveFlag();
/// Releases all touch that haven't been marked as active
void ReleaseInactiveTouch();
/// Resets all inputs to their initial value
void ReleaseAllTouch();
private:
static constexpr std::size_t MAX_FINGER_COUNT = 16;
struct TouchStatus {
std::size_t finger_id{};
bool is_enabled{};
bool is_active{};
};
std::optional<std::size_t> GetIndexFromFingerId(std::size_t finger_id) const;
std::optional<std::size_t> GetNextFreeIndex() const;
std::array<TouchStatus, MAX_FINGER_COUNT> fingers{};
};
} // namespace InputCommon

View file

@ -772,65 +772,25 @@ void GRenderWindow::wheelEvent(QWheelEvent* event) {
void GRenderWindow::TouchBeginEvent(const QTouchEvent* event) {
QList<QTouchEvent::TouchPoint> touch_points = event->touchPoints();
for (const auto& touch_point : touch_points) {
if (!TouchUpdate(touch_point)) {
TouchStart(touch_point);
}
const auto [x, y] = ScaleTouch(touch_point.pos());
const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
input_subsystem->GetTouchScreen()->TouchPressed(touch_x, touch_y, touch_point.id());
}
}
void GRenderWindow::TouchUpdateEvent(const QTouchEvent* event) {
QList<QTouchEvent::TouchPoint> touch_points = event->touchPoints();
input_subsystem->GetTouchScreen()->ClearActiveFlag();
for (const auto& touch_point : touch_points) {
if (!TouchUpdate(touch_point)) {
TouchStart(touch_point);
}
}
// Release all inactive points
for (std::size_t id = 0; id < touch_ids.size(); ++id) {
if (!TouchExist(touch_ids[id], touch_points)) {
touch_ids[id] = 0;
input_subsystem->GetTouchScreen()->TouchReleased(id);
}
const auto [x, y] = ScaleTouch(touch_point.pos());
const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
input_subsystem->GetTouchScreen()->TouchMoved(touch_x, touch_y, touch_point.id());
}
input_subsystem->GetTouchScreen()->ReleaseInactiveTouch();
}
void GRenderWindow::TouchEndEvent() {
for (std::size_t id = 0; id < touch_ids.size(); ++id) {
if (touch_ids[id] != 0) {
touch_ids[id] = 0;
input_subsystem->GetTouchScreen()->TouchReleased(id);
}
}
}
void GRenderWindow::TouchStart(const QTouchEvent::TouchPoint& touch_point) {
for (std::size_t id = 0; id < touch_ids.size(); ++id) {
if (touch_ids[id] == 0) {
touch_ids[id] = touch_point.id() + 1;
const auto [x, y] = ScaleTouch(touch_point.pos());
const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
input_subsystem->GetTouchScreen()->TouchPressed(touch_x, touch_y, id);
}
}
}
bool GRenderWindow::TouchUpdate(const QTouchEvent::TouchPoint& touch_point) {
for (std::size_t id = 0; id < touch_ids.size(); ++id) {
if (touch_ids[id] == static_cast<std::size_t>(touch_point.id() + 1)) {
const auto [x, y] = ScaleTouch(touch_point.pos());
const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
input_subsystem->GetTouchScreen()->TouchMoved(touch_x, touch_y, id);
return true;
}
}
return false;
}
bool GRenderWindow::TouchExist(std::size_t id,
const QList<QTouchEvent::TouchPoint>& touch_points) const {
return std::any_of(touch_points.begin(), touch_points.end(), [id](const auto& point) {
return id == static_cast<std::size_t>(point.id() + 1);
});
input_subsystem->GetTouchScreen()->ReleaseAllTouch();
}
bool GRenderWindow::event(QEvent* event) {

View file

@ -217,10 +217,6 @@ private:
void TouchUpdateEvent(const QTouchEvent* event);
void TouchEndEvent();
void TouchStart(const QTouchEvent::TouchPoint& touch_point);
bool TouchUpdate(const QTouchEvent::TouchPoint& touch_point);
bool TouchExist(std::size_t id, const QList<QTouchEvent::TouchPoint>& touch_points) const;
void OnMinimalClientAreaChangeRequest(std::pair<u32, u32> minimal_size) override;
bool InitializeOpenGL();
@ -246,8 +242,6 @@ private:
bool first_frame = false;
InputCommon::TasInput::TasState last_tas_state;
std::array<std::size_t, 16> touch_ids{};
Core::System& system;
protected:

View file

@ -93,7 +93,7 @@ void EmuWindow_SDL2::OnFingerMotion(float x, float y, std::size_t id) {
}
void EmuWindow_SDL2::OnFingerUp() {
input_subsystem->GetTouchScreen()->TouchReleased(0);
input_subsystem->GetTouchScreen()->ReleaseAllTouch();
}
void EmuWindow_SDL2::OnKeyEvent(int key, u8 state) {