Frontend: emulate motion sensor
This commit is contained in:
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6479f63091
commit
bcf9d20d57
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@ -19,16 +19,22 @@
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void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
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TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
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motion_emu->Tilt(x, y);
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}
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void EmuWindow_SDL2::OnMouseButton(u32 button, u8 state, s32 x, s32 y) {
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if (button != SDL_BUTTON_LEFT)
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return;
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if (state == SDL_PRESSED) {
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TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
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} else {
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TouchReleased();
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if (button == SDL_BUTTON_LEFT) {
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if (state == SDL_PRESSED) {
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TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
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} else {
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TouchReleased();
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}
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} else if (button == SDL_BUTTON_RIGHT) {
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if (state == SDL_PRESSED) {
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motion_emu->BeginTilt(x, y);
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} else {
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motion_emu->EndTilt();
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}
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}
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}
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@ -54,6 +60,7 @@ EmuWindow_SDL2::EmuWindow_SDL2() {
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keyboard_id = KeyMap::NewDeviceId();
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ReloadSetKeymaps();
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motion_emu = std::make_unique<Motion::MotionEmu>(*this);
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SDL_SetMainReady();
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@ -109,6 +116,7 @@ EmuWindow_SDL2::EmuWindow_SDL2() {
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EmuWindow_SDL2::~EmuWindow_SDL2() {
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SDL_GL_DeleteContext(gl_context);
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SDL_Quit();
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motion_emu = nullptr;
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}
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void EmuWindow_SDL2::SwapBuffers() {
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@ -4,8 +4,10 @@
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#pragma once
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#include <memory>
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#include <utility>
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#include "core/frontend/emu_window.h"
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#include "core/frontend/motion_emu.h"
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struct SDL_Window;
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@ -61,4 +63,7 @@ private:
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/// Device id of keyboard for use with KeyMap
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int keyboard_id;
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/// Motion sensors emulation
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std::unique_ptr<Motion::MotionEmu> motion_emu;
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};
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@ -191,6 +191,7 @@ qreal GRenderWindow::windowPixelRatio() {
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}
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void GRenderWindow::closeEvent(QCloseEvent* event) {
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motion_emu = nullptr;
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emit Closed();
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QWidget::closeEvent(event);
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}
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@ -204,11 +205,13 @@ void GRenderWindow::keyReleaseEvent(QKeyEvent* event) {
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}
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void GRenderWindow::mousePressEvent(QMouseEvent* event) {
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auto pos = event->pos();
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if (event->button() == Qt::LeftButton) {
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auto pos = event->pos();
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qreal pixelRatio = windowPixelRatio();
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this->TouchPressed(static_cast<unsigned>(pos.x() * pixelRatio),
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static_cast<unsigned>(pos.y() * pixelRatio));
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} else if (event->button() == Qt::RightButton) {
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motion_emu->BeginTilt(pos.x(), pos.y());
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}
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}
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@ -217,11 +220,14 @@ void GRenderWindow::mouseMoveEvent(QMouseEvent* event) {
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qreal pixelRatio = windowPixelRatio();
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this->TouchMoved(std::max(static_cast<unsigned>(pos.x() * pixelRatio), 0u),
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std::max(static_cast<unsigned>(pos.y() * pixelRatio), 0u));
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motion_emu->Tilt(pos.x(), pos.y());
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}
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void GRenderWindow::mouseReleaseEvent(QMouseEvent* event) {
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if (event->button() == Qt::LeftButton)
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this->TouchReleased();
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else if (event->button() == Qt::RightButton)
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motion_emu->EndTilt();
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}
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void GRenderWindow::ReloadSetKeymaps() {
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@ -279,11 +285,13 @@ void GRenderWindow::OnMinimalClientAreaChangeRequest(
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}
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void GRenderWindow::OnEmulationStarting(EmuThread* emu_thread) {
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motion_emu = std::make_unique<Motion::MotionEmu>(*this);
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this->emu_thread = emu_thread;
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child->DisablePainting();
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}
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void GRenderWindow::OnEmulationStopping() {
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motion_emu = nullptr;
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emu_thread = nullptr;
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child->EnablePainting();
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}
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@ -11,6 +11,7 @@
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#include <QThread>
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#include "common/thread.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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class QKeyEvent;
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class QScreen;
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@ -156,6 +157,9 @@ private:
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EmuThread* emu_thread;
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/// Motion sensors emulation
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std::unique_ptr<Motion::MotionEmu> motion_emu;
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protected:
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void showEvent(QShowEvent* event) override;
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};
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@ -31,6 +31,7 @@ set(SRCS
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file_sys/savedata_archive.cpp
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frontend/emu_window.cpp
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frontend/key_map.cpp
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frontend/motion_emu.cpp
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gdbstub/gdbstub.cpp
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hle/config_mem.cpp
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hle/applets/applet.cpp
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@ -202,6 +203,7 @@ set(HEADERS
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file_sys/savedata_archive.h
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frontend/emu_window.h
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frontend/key_map.h
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frontend/motion_emu.h
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gdbstub/gdbstub.h
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hle/config_mem.h
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hle/function_wrappers.h
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@ -5,6 +5,7 @@
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#include <algorithm>
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#include <cmath>
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#include "common/assert.h"
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#include "common/profiler_reporting.h"
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#include "core/frontend/emu_window.h"
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#include "core/frontend/key_map.h"
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#include "video_core/video_core.h"
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@ -89,6 +90,27 @@ void EmuWindow::TouchMoved(unsigned framebuffer_x, unsigned framebuffer_y) {
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TouchPressed(framebuffer_x, framebuffer_y);
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}
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void EmuWindow::AccelerometerChanged(float x, float y, float z) {
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constexpr float coef = 512;
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// TODO(wwylele): do a time stretch as it in GyroscopeChanged
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// The time stretch formula should be like
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// stretched_vector = (raw_vector - gravity) * stretch_ratio + gravity
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accel_x = x * coef;
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accel_y = y * coef;
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accel_z = z * coef;
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}
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void EmuWindow::GyroscopeChanged(float x, float y, float z) {
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constexpr float FULL_FPS = 60;
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float coef = GetGyroscopeRawToDpsCoefficient();
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float stretch =
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FULL_FPS / Common::Profiling::GetTimingResultsAggregator()->GetAggregatedResults().fps;
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gyro_x = x * coef * stretch;
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gyro_y = y * coef * stretch;
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gyro_z = z * coef * stretch;
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}
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void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height) {
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Layout::FramebufferLayout layout;
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switch (Settings::values.layout_option) {
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@ -92,6 +92,27 @@ public:
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*/
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void TouchMoved(unsigned framebuffer_x, unsigned framebuffer_y);
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/**
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* Signal accelerometer state has changed.
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* @param x X-axis accelerometer value
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* @param y Y-axis accelerometer value
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* @param z Z-axis accelerometer value
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* @note all values are in unit of g (gravitational acceleration).
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* e.g. x = 1.0 means 9.8m/s^2 in x direction.
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* @see GetAccelerometerState for axis explanation.
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*/
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void AccelerometerChanged(float x, float y, float z);
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/**
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* Signal gyroscope state has changed.
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* @param x X-axis accelerometer value
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* @param y Y-axis accelerometer value
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* @param z Z-axis accelerometer value
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* @note all values are in deg/sec.
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* @see GetGyroscopeState for axis explanation.
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*/
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void GyroscopeChanged(float x, float y, float z);
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/**
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* Gets the current pad state (which buttons are pressed).
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* @note This should be called by the core emu thread to get a state set by the window thread.
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@ -134,12 +155,11 @@ public:
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* 1 unit of return value = 1/512 g (measured by hw test),
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* where g is the gravitational acceleration (9.8 m/sec2).
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* @note This should be called by the core emu thread to get a state set by the window thread.
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* @todo Implement accelerometer input in front-end.
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* @todo Fix this function to be thread-safe.
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* @return std::tuple of (x, y, z)
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*/
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std::tuple<s16, s16, s16> GetAccelerometerState() const {
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// stubbed
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return std::make_tuple(0, -512, 0);
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std::tuple<s16, s16, s16> GetAccelerometerState() {
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return std::make_tuple(accel_x, accel_y, accel_z);
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}
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/**
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@ -153,12 +173,11 @@ public:
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* 1 unit of return value = (1/coef) deg/sec,
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* where coef is the return value of GetGyroscopeRawToDpsCoefficient().
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* @note This should be called by the core emu thread to get a state set by the window thread.
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* @todo Implement gyroscope input in front-end.
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* @todo Fix this function to be thread-safe.
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* @return std::tuple of (x, y, z)
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*/
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std::tuple<s16, s16, s16> GetGyroscopeState() const {
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// stubbed
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return std::make_tuple(0, 0, 0);
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std::tuple<s16, s16, s16> GetGyroscopeState() {
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return std::make_tuple(gyro_x, gyro_y, gyro_z);
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}
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/**
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@ -216,6 +235,12 @@ protected:
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circle_pad_x = 0;
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circle_pad_y = 0;
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touch_pressed = false;
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accel_x = 0;
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accel_y = -512;
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accel_z = 0;
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gyro_x = 0;
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gyro_y = 0;
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gyro_z = 0;
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}
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virtual ~EmuWindow() {}
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@ -281,6 +306,14 @@ private:
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s16 circle_pad_x; ///< Circle pad X-position in native 3DS pixel coordinates (-156 - 156)
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s16 circle_pad_y; ///< Circle pad Y-position in native 3DS pixel coordinates (-156 - 156)
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s16 accel_x; ///< Accelerometer X-axis value in native 3DS units
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s16 accel_y; ///< Accelerometer Y-axis value in native 3DS units
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s16 accel_z; ///< Accelerometer Z-axis value in native 3DS units
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s16 gyro_x; ///< Gyroscope X-axis value in native 3DS units
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s16 gyro_y; ///< Gyroscope Y-axis value in native 3DS units
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s16 gyro_z; ///< Gyroscope Z-axis value in native 3DS units
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/**
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* Clip the provided coordinates to be inside the touchscreen area.
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*/
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@ -0,0 +1,89 @@
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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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@ -0,0 +1,52 @@
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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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