9e726a9250
Now all that remains is for kernel code to be 'shadow-free' and then -Wshadow can be turned into an error.
161 lines
6.3 KiB
C++
161 lines
6.3 KiB
C++
// Copyright 2018 yuzu emulator team
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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 <algorithm>
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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/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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#include "core/frontend/input.h"
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#include "core/hle/service/hid/controllers/touchscreen.h"
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namespace Service::HID {
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constexpr std::size_t SHARED_MEMORY_OFFSET = 0x400;
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Controller_Touchscreen::Controller_Touchscreen(Core::System& system_) : ControllerBase{system_} {}
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Controller_Touchscreen::~Controller_Touchscreen() = default;
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void Controller_Touchscreen::OnInit() {
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for (std::size_t id = 0; id < MAX_FINGERS; ++id) {
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mouse_finger_id[id] = MAX_FINGERS;
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keyboard_finger_id[id] = MAX_FINGERS;
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udp_finger_id[id] = MAX_FINGERS;
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}
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}
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void Controller_Touchscreen::OnRelease() {}
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void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
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std::size_t size) {
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shared_memory.header.timestamp = core_timing.GetCPUTicks();
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shared_memory.header.total_entry_count = 17;
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if (!IsControllerActivated()) {
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shared_memory.header.entry_count = 0;
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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 =
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shared_memory.shared_memory_entries[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.shared_memory_entries[shared_memory.header.last_entry_index];
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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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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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mouse_finger_id[id] = UpdateTouchInputEvent(mouse_status[id], mouse_finger_id[id]);
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udp_finger_id[id] = UpdateTouchInputEvent(udp_status[id], udp_finger_id[id]);
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}
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if (Settings::values.use_touch_from_button) {
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const Input::TouchStatus& keyboard_status = touch_btn_device->GetStatus();
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for (std::size_t id = 0; id < mouse_status.size(); ++id) {
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keyboard_finger_id[id] =
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UpdateTouchInputEvent(keyboard_status[id], keyboard_finger_id[id]);
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}
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}
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std::array<Finger, 16> active_fingers;
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const auto end_iter = std::copy_if(fingers.begin(), fingers.end(), active_fingers.begin(),
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[](const auto& finger) { return finger.pressed; });
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const auto active_fingers_count =
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static_cast<std::size_t>(std::distance(active_fingers.begin(), end_iter));
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const u64 tick = core_timing.GetCPUTicks();
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cur_entry.entry_count = static_cast<s32_le>(active_fingers_count);
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for (std::size_t id = 0; id < MAX_FINGERS; ++id) {
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auto& touch_entry = cur_entry.states[id];
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if (id < active_fingers_count) {
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touch_entry.x = static_cast<u16>(active_fingers[id].x * Layout::ScreenUndocked::Width);
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touch_entry.y = static_cast<u16>(active_fingers[id].y * Layout::ScreenUndocked::Height);
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touch_entry.diameter_x = Settings::values.touchscreen.diameter_x;
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touch_entry.diameter_y = Settings::values.touchscreen.diameter_y;
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touch_entry.rotation_angle = Settings::values.touchscreen.rotation_angle;
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touch_entry.delta_time = tick - active_fingers[id].last_touch;
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fingers[active_fingers[id].id].last_touch = tick;
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touch_entry.finger = active_fingers[id].id;
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touch_entry.attribute.raw = active_fingers[id].attribute.raw;
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} else {
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// Clear touch entry
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touch_entry.attribute.raw = 0;
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touch_entry.x = 0;
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touch_entry.y = 0;
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touch_entry.diameter_x = 0;
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touch_entry.diameter_y = 0;
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touch_entry.rotation_angle = 0;
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touch_entry.delta_time = 0;
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touch_entry.finger = 0;
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}
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}
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std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(TouchScreenSharedMemory));
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}
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void Controller_Touchscreen::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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touch_btn_device = Input::CreateDevice<Input::TouchDevice>("engine:touch_from_button");
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}
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std::optional<std::size_t> Controller_Touchscreen::GetUnusedFingerID() const {
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// Dont assign any touch input to a finger if disabled
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if (!Settings::values.touchscreen.enabled) {
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return std::nullopt;
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}
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std::size_t first_free_id = 0;
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while (first_free_id < MAX_FINGERS) {
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if (!fingers[first_free_id].pressed) {
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return first_free_id;
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} else {
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first_free_id++;
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}
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}
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return std::nullopt;
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}
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std::size_t Controller_Touchscreen::UpdateTouchInputEvent(
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const std::tuple<float, float, bool>& touch_input, std::size_t finger_id) {
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const auto& [x, y, pressed] = touch_input;
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if (finger_id > MAX_FINGERS) {
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LOG_ERROR(Service_HID, "Invalid finger id {}", finger_id);
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return MAX_FINGERS;
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}
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if (pressed) {
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Attributes attribute{};
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if (finger_id == MAX_FINGERS) {
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const auto first_free_id = GetUnusedFingerID();
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if (!first_free_id) {
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// Invalid finger id do nothing
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return MAX_FINGERS;
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}
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finger_id = first_free_id.value();
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fingers[finger_id].pressed = true;
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fingers[finger_id].id = static_cast<u32_le>(finger_id);
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attribute.start_touch.Assign(1);
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}
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fingers[finger_id].x = x;
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fingers[finger_id].y = y;
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fingers[finger_id].attribute = attribute;
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return finger_id;
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}
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if (finger_id != MAX_FINGERS) {
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if (!fingers[finger_id].attribute.end_touch) {
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fingers[finger_id].attribute.end_touch.Assign(1);
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fingers[finger_id].attribute.start_touch.Assign(0);
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return finger_id;
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}
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fingers[finger_id].pressed = false;
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}
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return MAX_FINGERS;
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}
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} // namespace Service::HID
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