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Merge pull request #2861 from wwylele/motion-refactor
Merge pull request #2861 from wwylele/motion-refactor
Refactor MotionEmu into a InputDevicence_cpp
James Rowe
8 years ago
committed by
GitHub
GitHub
20 changed files with 302 additions and 277 deletions
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3src/citra/config.cpp
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6src/citra/default_ini.h
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10src/citra/emu_window/emu_window_sdl2.cpp
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4src/citra/emu_window/emu_window_sdl2.h
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10src/citra_qt/bootmanager.cpp
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4src/citra_qt/bootmanager.h
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6src/citra_qt/configuration/config.cpp
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2src/core/CMakeLists.txt
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23src/core/frontend/emu_window.cpp
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83src/core/frontend/emu_window.h
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19src/core/frontend/input.h
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89src/core/frontend/motion_emu.cpp
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52src/core/frontend/motion_emu.h
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32src/core/hle/service/hid/hid.cpp
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1src/core/settings.h
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2src/input_common/CMakeLists.txt
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15src/input_common/main.cpp
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5src/input_common/main.h
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165src/input_common/motion_emu.cpp
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46src/input_common/motion_emu.h
@ -1,89 +0,0 @@ |
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// Copyright 2016 Citra 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 "common/math_util.h"
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#include "common/quaternion.h"
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#include "core/frontend/emu_window.h"
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#include "core/frontend/motion_emu.h"
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namespace Motion { |
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static constexpr int update_millisecond = 100; |
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static constexpr auto update_duration = |
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std::chrono::duration_cast<std::chrono::steady_clock::duration>( |
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std::chrono::milliseconds(update_millisecond)); |
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MotionEmu::MotionEmu(EmuWindow& emu_window) |
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: motion_emu_thread(&MotionEmu::MotionEmuThread, this, std::ref(emu_window)) {} |
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MotionEmu::~MotionEmu() { |
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if (motion_emu_thread.joinable()) { |
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shutdown_event.Set(); |
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motion_emu_thread.join(); |
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} |
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} |
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void MotionEmu::MotionEmuThread(EmuWindow& emu_window) { |
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auto update_time = std::chrono::steady_clock::now(); |
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Math::Quaternion<float> q = MakeQuaternion(Math::Vec3<float>(), 0); |
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Math::Quaternion<float> old_q; |
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while (!shutdown_event.WaitUntil(update_time)) { |
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update_time += update_duration; |
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old_q = q; |
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{ |
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std::lock_guard<std::mutex> guard(tilt_mutex); |
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// Find the quaternion describing current 3DS tilting
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q = MakeQuaternion(Math::MakeVec(-tilt_direction.y, 0.0f, tilt_direction.x), |
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tilt_angle); |
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} |
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auto inv_q = q.Inverse(); |
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// Set the gravity vector in world space
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auto gravity = Math::MakeVec(0.0f, -1.0f, 0.0f); |
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// Find the angular rate vector in world space
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auto angular_rate = ((q - old_q) * inv_q).xyz * 2; |
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angular_rate *= 1000 / update_millisecond / MathUtil::PI * 180; |
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// Transform the two vectors from world space to 3DS space
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gravity = QuaternionRotate(inv_q, gravity); |
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angular_rate = QuaternionRotate(inv_q, angular_rate); |
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// Update the sensor state
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emu_window.AccelerometerChanged(gravity.x, gravity.y, gravity.z); |
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emu_window.GyroscopeChanged(angular_rate.x, angular_rate.y, angular_rate.z); |
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} |
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} |
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void MotionEmu::BeginTilt(int x, int y) { |
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mouse_origin = Math::MakeVec(x, y); |
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is_tilting = true; |
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} |
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void MotionEmu::Tilt(int x, int y) { |
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constexpr float SENSITIVITY = 0.01f; |
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auto mouse_move = Math::MakeVec(x, y) - mouse_origin; |
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if (is_tilting) { |
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std::lock_guard<std::mutex> guard(tilt_mutex); |
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if (mouse_move.x == 0 && mouse_move.y == 0) { |
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tilt_angle = 0; |
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} else { |
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tilt_direction = mouse_move.Cast<float>(); |
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tilt_angle = MathUtil::Clamp(tilt_direction.Normalize() * SENSITIVITY, 0.0f, |
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MathUtil::PI * 0.5f); |
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} |
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} |
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} |
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void MotionEmu::EndTilt() { |
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std::lock_guard<std::mutex> guard(tilt_mutex); |
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tilt_angle = 0; |
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is_tilting = false; |
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} |
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} // namespace Motion
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@ -1,52 +0,0 @@ |
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// Copyright 2016 Citra 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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#pragma once |
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#include "common/thread.h" |
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#include "common/vector_math.h" |
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class EmuWindow; |
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namespace Motion { |
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class MotionEmu final { |
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public: |
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MotionEmu(EmuWindow& emu_window); |
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~MotionEmu(); |
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/** |
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* Signals that a motion sensor tilt has begun. |
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* @param x the x-coordinate of the cursor |
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* @param y the y-coordinate of the cursor |
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*/ |
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void BeginTilt(int x, int y); |
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/** |
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* Signals that a motion sensor tilt is occurring. |
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* @param x the x-coordinate of the cursor |
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* @param y the y-coordinate of the cursor |
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*/ |
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void Tilt(int x, int y); |
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/** |
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* Signals that a motion sensor tilt has ended. |
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*/ |
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void EndTilt(); |
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private: |
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Math::Vec2<int> mouse_origin; |
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std::mutex tilt_mutex; |
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Math::Vec2<float> tilt_direction; |
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float tilt_angle = 0; |
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bool is_tilting = false; |
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Common::Event shutdown_event; |
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std::thread motion_emu_thread; |
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void MotionEmuThread(EmuWindow& emu_window); |
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}; |
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} // namespace Motion |
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@ -0,0 +1,165 @@ |
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// Copyright 2017 Citra 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 <chrono>
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#include <mutex>
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#include <thread>
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#include <tuple>
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#include "common/math_util.h"
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#include "common/quaternion.h"
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#include "common/thread.h"
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#include "common/vector_math.h"
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#include "input_common/motion_emu.h"
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namespace InputCommon { |
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// Implementation class of the motion emulation device
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class MotionEmuDevice { |
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public: |
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MotionEmuDevice(int update_millisecond, float sensitivity) |
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: update_millisecond(update_millisecond), |
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update_duration(std::chrono::duration_cast<std::chrono::steady_clock::duration>( |
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std::chrono::milliseconds(update_millisecond))), |
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sensitivity(sensitivity), motion_emu_thread(&MotionEmuDevice::MotionEmuThread, this) {} |
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~MotionEmuDevice() { |
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if (motion_emu_thread.joinable()) { |
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shutdown_event.Set(); |
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motion_emu_thread.join(); |
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} |
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} |
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void BeginTilt(int x, int y) { |
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mouse_origin = Math::MakeVec(x, y); |
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is_tilting = true; |
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} |
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void Tilt(int x, int y) { |
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auto mouse_move = Math::MakeVec(x, y) - mouse_origin; |
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if (is_tilting) { |
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std::lock_guard<std::mutex> guard(tilt_mutex); |
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if (mouse_move.x == 0 && mouse_move.y == 0) { |
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tilt_angle = 0; |
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} else { |
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tilt_direction = mouse_move.Cast<float>(); |
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tilt_angle = MathUtil::Clamp(tilt_direction.Normalize() * sensitivity, 0.0f, |
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MathUtil::PI * 0.5f); |
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} |
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} |
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} |
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void EndTilt() { |
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std::lock_guard<std::mutex> guard(tilt_mutex); |
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tilt_angle = 0; |
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is_tilting = false; |
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} |
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std::tuple<Math::Vec3<float>, Math::Vec3<float>> GetStatus() { |
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std::lock_guard<std::mutex> guard(status_mutex); |
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return status; |
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} |
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private: |
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const int update_millisecond; |
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const std::chrono::steady_clock::duration update_duration; |
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const float sensitivity; |
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Math::Vec2<int> mouse_origin; |
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std::mutex tilt_mutex; |
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Math::Vec2<float> tilt_direction; |
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float tilt_angle = 0; |
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bool is_tilting = false; |
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Common::Event shutdown_event; |
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std::thread motion_emu_thread; |
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std::tuple<Math::Vec3<float>, Math::Vec3<float>> status; |
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std::mutex status_mutex; |
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void MotionEmuThread() { |
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auto update_time = std::chrono::steady_clock::now(); |
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Math::Quaternion<float> q = MakeQuaternion(Math::Vec3<float>(), 0); |
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Math::Quaternion<float> old_q; |
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while (!shutdown_event.WaitUntil(update_time)) { |
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update_time += update_duration; |
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old_q = q; |
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{ |
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std::lock_guard<std::mutex> guard(tilt_mutex); |
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// Find the quaternion describing current 3DS tilting
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q = MakeQuaternion(Math::MakeVec(-tilt_direction.y, 0.0f, tilt_direction.x), |
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tilt_angle); |
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} |
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auto inv_q = q.Inverse(); |
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// Set the gravity vector in world space
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auto gravity = Math::MakeVec(0.0f, -1.0f, 0.0f); |
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// Find the angular rate vector in world space
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auto angular_rate = ((q - old_q) * inv_q).xyz * 2; |
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angular_rate *= 1000 / update_millisecond / MathUtil::PI * 180; |
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// Transform the two vectors from world space to 3DS space
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gravity = QuaternionRotate(inv_q, gravity); |
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angular_rate = QuaternionRotate(inv_q, angular_rate); |
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// Update the sensor state
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{ |
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std::lock_guard<std::mutex> guard(status_mutex); |
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status = std::make_tuple(gravity, angular_rate); |
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} |
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} |
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} |
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}; |
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// Interface wrapper held by input receiver as a unique_ptr. It holds the implementation class as
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// a shared_ptr, which is also observed by the factory class as a weak_ptr. In this way the factory
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// can forward all the inputs to the implementation only when it is valid.
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class MotionEmuDeviceWrapper : public Input::MotionDevice { |
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public: |
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MotionEmuDeviceWrapper(int update_millisecond, float sensitivity) { |
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device = std::make_shared<MotionEmuDevice>(update_millisecond, sensitivity); |
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} |
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std::tuple<Math::Vec3<float>, Math::Vec3<float>> GetStatus() const { |
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return device->GetStatus(); |
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} |
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std::shared_ptr<MotionEmuDevice> device; |
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}; |
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std::unique_ptr<Input::MotionDevice> MotionEmu::Create(const Common::ParamPackage& params) { |
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int update_period = params.Get("update_period", 100); |
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float sensitivity = params.Get("sensitivity", 0.01f); |
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auto device_wrapper = std::make_unique<MotionEmuDeviceWrapper>(update_period, sensitivity); |
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// Previously created device is disconnected here. Having two motion devices for 3DS is not
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// expected.
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current_device = device_wrapper->device; |
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return std::move(device_wrapper); |
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} |
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void MotionEmu::BeginTilt(int x, int y) { |
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if (auto ptr = current_device.lock()) { |
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ptr->BeginTilt(x, y); |
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} |
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} |
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void MotionEmu::Tilt(int x, int y) { |
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if (auto ptr = current_device.lock()) { |
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ptr->Tilt(x, y); |
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} |
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} |
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void MotionEmu::EndTilt() { |
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if (auto ptr = current_device.lock()) { |
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ptr->EndTilt(); |
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} |
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} |
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} // namespace InputCommon
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@ -0,0 +1,46 @@ |
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// Copyright 2017 Citra 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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#pragma once |
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#include "core/frontend/input.h" |
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namespace InputCommon { |
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class MotionEmuDevice; |
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class MotionEmu : public Input::Factory<Input::MotionDevice> { |
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public: |
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/** |
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* Creates a motion device emulated from mouse input |
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* @param params contains parameters for creating the device: |
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* - "update_period": update period in milliseconds |
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* - "sensitivity": the coefficient converting mouse movement to tilting angle |
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*/ |
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std::unique_ptr<Input::MotionDevice> Create(const Common::ParamPackage& params) override; |
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/** |
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* Signals that a motion sensor tilt has begun. |
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* @param x the x-coordinate of the cursor |
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* @param y the y-coordinate of the cursor |
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*/ |
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void BeginTilt(int x, int y); |
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/** |
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* Signals that a motion sensor tilt is occurring. |
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* @param x the x-coordinate of the cursor |
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* @param y the y-coordinate of the cursor |
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*/ |
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void Tilt(int x, int y); |
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/** |
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* Signals that a motion sensor tilt has ended. |
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*/ |
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void EndTilt(); |
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private: |
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std::weak_ptr<MotionEmuDevice> current_device; |
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}; |
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} // namespace InputCommon |
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