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ControllerEmu: Add support for setting the center of a ReshapableInput

This is useful in far out-of-calibration controllers, such as the
Switch Pro controller. This also adds support for configuring the center
in the Mapping widget.
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artemist committed Apr 12, 2019
1 parent d60b0c6 commit 49e46c8aff1db605c5456997d5d94ac40d6e7869
@@ -29,6 +29,7 @@

namespace
{
const QColor CENTER_COLOR = Qt::blue;
const QColor C_STICK_GATE_COLOR = Qt::yellow;
const QColor CURSOR_TV_COLOR = 0xaed6f1;
const QColor TILT_GATE_COLOR = 0xa2d9ce;
@@ -115,7 +116,8 @@ namespace
{
// Constructs a polygon by querying a radius at varying angles:
template <typename F>
QPolygonF GetPolygonFromRadiusGetter(F&& radius_getter, double scale)
QPolygonF GetPolygonFromRadiusGetter(F&& radius_getter, double scale,
Common::DVec2 center = {0.0, 0.0})
{
// A multiple of 8 (octagon) and enough points to be visibly pleasing:
constexpr int shape_point_count = 32;
@@ -127,7 +129,8 @@ QPolygonF GetPolygonFromRadiusGetter(F&& radius_getter, double scale)
const double angle = MathUtil::TAU * p / shape.size();
const double radius = radius_getter(angle) * scale;

point = {std::cos(angle) * radius, std::sin(angle) * radius};
point = {std::cos(angle) * radius + center.x * scale,
std::sin(angle) * radius + center.y * scale};
++p;
}

@@ -167,9 +170,10 @@ bool IsCalibrationDataSensible(const ControllerEmu::ReshapableInput::Calibration
// Used to test for a miscalibrated stick so the user can be informed.
bool IsPointOutsideCalibration(Common::DVec2 point, ControllerEmu::ReshapableInput& input)
{
const double current_radius = point.Length();
const double input_radius =
input.GetInputRadiusAtAngle(std::atan2(point.y, point.x) + MathUtil::TAU);
const auto center = input.GetCenter();
const double current_radius = (point - center).Length();
const double input_radius = input.GetInputRadiusAtAngle(
std::atan2(point.y - center.y, point.x - center.x) + MathUtil::TAU);

constexpr double ALLOWED_ERROR = 1.3;

@@ -180,6 +184,8 @@ bool IsPointOutsideCalibration(Common::DVec2 point, ControllerEmu::ReshapableInp

void MappingIndicator::DrawCursor(ControllerEmu::Cursor& cursor)
{
const auto center = cursor.GetCenter();

const QColor tv_brush_color = CURSOR_TV_COLOR;
const QColor tv_pen_color = tv_brush_color.darker(125);

@@ -247,13 +253,21 @@ void MappingIndicator::DrawCursor(ControllerEmu::Cursor& cursor)
p.setPen(GetDeadZonePen());
p.setBrush(GetDeadZoneBrush());
p.drawPolygon(GetPolygonFromRadiusGetter(
[&cursor](double ang) { return cursor.GetDeadzoneRadiusAtAngle(ang); }, scale));
[&cursor](double ang) { return cursor.GetDeadzoneRadiusAtAngle(ang); }, scale, center));

// Input shape.
p.setPen(GetInputShapePen());
p.setBrush(Qt::NoBrush);
p.drawPolygon(GetPolygonFromRadiusGetter(
[&cursor](double ang) { return cursor.GetInputRadiusAtAngle(ang); }, scale));
[&cursor](double ang) { return cursor.GetInputRadiusAtAngle(ang); }, scale, center));

// Center.
if (center.x || center.y)
{
p.setPen(Qt::NoPen);
p.setBrush(CENTER_COLOR);
p.drawEllipse(QPointF{center.x, center.y} * scale, INPUT_DOT_RADIUS, INPUT_DOT_RADIUS);
}

// Raw stick position.
p.setPen(Qt::NoPen);
@@ -276,6 +290,8 @@ void MappingIndicator::DrawReshapableInput(ControllerEmu::ReshapableInput& stick
const bool is_c_stick = m_group->name == "C-Stick";
const bool is_tilt = m_group->name == "Tilt";

const auto center = stick.GetCenter();

QColor gate_brush_color = GetGateColor();

if (is_c_stick)
@@ -321,7 +337,7 @@ void MappingIndicator::DrawReshapableInput(ControllerEmu::ReshapableInput& stick

if (IsCalibrating())
{
DrawCalibration(p, raw_coord);
DrawCalibration(p, raw_coord, center);
return;
}

@@ -335,13 +351,21 @@ void MappingIndicator::DrawReshapableInput(ControllerEmu::ReshapableInput& stick
p.setPen(GetDeadZonePen());
p.setBrush(GetDeadZoneBrush());
p.drawPolygon(GetPolygonFromRadiusGetter(
[&stick](double ang) { return stick.GetDeadzoneRadiusAtAngle(ang); }, scale));
[&stick](double ang) { return stick.GetDeadzoneRadiusAtAngle(ang); }, scale, center));

// Input shape.
p.setPen(GetInputShapePen());
p.setBrush(Qt::NoBrush);
p.drawPolygon(GetPolygonFromRadiusGetter(
[&stick](double ang) { return stick.GetInputRadiusAtAngle(ang); }, scale));
[&stick](double ang) { return stick.GetInputRadiusAtAngle(ang); }, scale, center));

// Center.
if (center.x || center.y)
{
p.setPen(Qt::NoPen);
p.setBrush(CENTER_COLOR);
p.drawEllipse(QPointF{center.x, center.y} * scale, INPUT_DOT_RADIUS, INPUT_DOT_RADIUS);
}

// Raw stick position.
p.setPen(Qt::NoPen);
@@ -454,6 +478,8 @@ void MappingIndicator::DrawMixedTriggers()

void MappingIndicator::DrawForce(ControllerEmu::Force& force)
{
const auto center = force.GetCenter();

const QColor gate_brush_color = SWING_GATE_COLOR;
const QColor gate_pen_color = gate_brush_color.darker(125);

@@ -528,13 +554,21 @@ void MappingIndicator::DrawForce(ControllerEmu::Force& force)
p.setPen(GetDeadZoneColor());
p.setBrush(GetDeadZoneBrush());
p.drawPolygon(GetPolygonFromRadiusGetter(
[&force](double ang) { return force.GetDeadzoneRadiusAtAngle(ang); }, scale));
[&force](double ang) { return force.GetDeadzoneRadiusAtAngle(ang); }, scale, center));

// Input shape.
p.setPen(GetInputShapePen());
p.setBrush(Qt::NoBrush);
p.drawPolygon(GetPolygonFromRadiusGetter(
[&force](double ang) { return force.GetInputRadiusAtAngle(ang); }, scale));
[&force](double ang) { return force.GetInputRadiusAtAngle(ang); }, scale, center));

// Center.
if (center.x || center.y)
{
p.setPen(Qt::NoPen);
p.setBrush(CENTER_COLOR);
p.drawEllipse(QPointF{center.x, center.y} * scale, INPUT_DOT_RADIUS, INPUT_DOT_RADIUS);
}

// Raw stick position.
p.setPen(Qt::NoPen);
@@ -665,8 +699,7 @@ void ShakeMappingIndicator::DrawShake()
p.drawPolyline(polyline);
}
}

void MappingIndicator::DrawCalibration(QPainter& p, Common::DVec2 point)
void MappingIndicator::DrawCalibration(QPainter& p, Common::DVec2 point, Common::DVec2 center)
{
// Bounding box size:
const double scale = GetScale();
@@ -676,7 +709,7 @@ void MappingIndicator::DrawCalibration(QPainter& p, Common::DVec2 point)
p.setBrush(Qt::NoBrush);
p.drawPolygon(GetPolygonFromRadiusGetter(
[this](double angle) { return m_calibration_widget->GetCalibrationRadiusAtAngle(angle); },
scale));
scale, center));

// Stick position.
p.setPen(Qt::NoPen);
@@ -729,15 +762,24 @@ CalibrationWidget::CalibrationWidget(ControllerEmu::ReshapableInput& input,
void CalibrationWidget::SetupActions()
{
const auto calibrate_action = new QAction(tr("Calibrate"), this);
const auto center_action = new QAction(tr("Center and Calibrate"), this);
const auto reset_action = new QAction(tr("Reset"), this);

connect(calibrate_action, &QAction::triggered, [this]() { StartCalibration(); });
connect(reset_action, &QAction::triggered, [this]() { m_input.SetCalibrationToDefault(); });
connect(center_action, &QAction::triggered, [this]() {
StartCalibration();
m_is_centering = true;
});
connect(reset_action, &QAction::triggered, [this]() {
m_input.SetCalibrationToDefault();
m_input.SetCenter({0, 0});
});

for (auto* action : actions())
removeAction(action);

addAction(calibrate_action);
addAction(center_action);
addAction(reset_action);
setDefaultAction(calibrate_action);

@@ -751,11 +793,15 @@ void CalibrationWidget::SetupActions()

void CalibrationWidget::StartCalibration()
{
// Set the old center so we can revert
m_old_center = m_input.GetCenter();

m_calibration_data.assign(m_input.CALIBRATION_SAMPLE_COUNT, 0.0);

// Cancel calibration.
const auto cancel_action = new QAction(tr("Cancel Calibration"), this);
connect(cancel_action, &QAction::triggered, [this]() {
m_input.SetCenter(m_old_center);
m_calibration_data.clear();
m_informative_timer->stop();
SetupActions();
@@ -777,9 +823,14 @@ void CalibrationWidget::Update(Common::DVec2 point)
QFont f = parentWidget()->font();
QPalette p = parentWidget()->palette();

if (IsCalibrating())
if (m_is_centering)
{
m_input.SetCenter(point);
m_is_centering = false;
}
else if (IsCalibrating())
{
m_input.UpdateCalibrationData(m_calibration_data, point);
m_input.UpdateCalibrationData(m_calibration_data, point - m_input.GetCenter());

if (IsCalibrationDataSensible(m_calibration_data))
{
@@ -55,7 +55,7 @@ class MappingIndicator : public QWidget
void DrawReshapableInput(ControllerEmu::ReshapableInput& stick);
void DrawMixedTriggers();
void DrawForce(ControllerEmu::Force&);
void DrawCalibration(QPainter& p, Common::DVec2 point);
void DrawCalibration(QPainter& p, Common::DVec2 point, Common::DVec2 center = {0, 0});

void paintEvent(QPaintEvent*) override;

@@ -101,4 +101,7 @@ class CalibrationWidget : public QToolButton
QAction* m_completion_action;
ControllerEmu::ReshapableInput::CalibrationData m_calibration_data;
QTimer* m_informative_timer;

bool m_is_centering = false;
ControllerEmu::ReshapableInput::ReshapeData m_old_center;
};
@@ -20,6 +20,9 @@ constexpr auto CALIBRATION_CONFIG_NAME = "Calibration";
constexpr auto CALIBRATION_DEFAULT_VALUE = 1.0;
constexpr auto CALIBRATION_CONFIG_SCALE = 100;

constexpr auto CENTER_CONFIG_NAME = "Center";
constexpr auto CENTER_CONFIG_SCALE = 100;

// Calculate distance to intersection of a ray with a line defined by two points.
double GetRayLineIntersection(Common::DVec2 ray, Common::DVec2 point1, Common::DVec2 point2)
{
@@ -214,6 +217,16 @@ void ReshapableInput::SetCalibrationData(CalibrationData data)
m_calibration = std::move(data);
}

const ReshapableInput::ReshapeData& ReshapableInput::GetCenter() const
{
return m_center;
}

void ReshapableInput::SetCenter(ReshapableInput::ReshapeData center)
{
m_center = center;
}

void ReshapableInput::LoadConfig(IniFile::Section* section, const std::string& default_device,
const std::string& base_name)
{
@@ -232,6 +245,20 @@ void ReshapableInput::LoadConfig(IniFile::Section* section, const std::string& d
if (TryParse(*(it++), &sample))
sample /= CALIBRATION_CONFIG_SCALE;
}

section->Get(group + CENTER_CONFIG_NAME, &load_str, "");
const auto center_data = SplitString(load_str, ' ');

m_center = Common::DVec2();

if (center_data.size() == 2)
{
if (TryParse(center_data[0], &m_center.x))
m_center.x /= CENTER_CONFIG_SCALE;

if (TryParse(center_data[1], &m_center.y))
m_center.y /= CENTER_CONFIG_SCALE;
}
}

void ReshapableInput::SaveConfig(IniFile::Section* section, const std::string& default_device,
@@ -245,11 +272,19 @@ void ReshapableInput::SaveConfig(IniFile::Section* section, const std::string& d
m_calibration.begin(), m_calibration.end(), save_data.begin(),
[](ControlState val) { return StringFromFormat("%.2f", val * CALIBRATION_CONFIG_SCALE); });
section->Set(group + CALIBRATION_CONFIG_NAME, JoinStrings(save_data, " "), "");

const auto center_data = StringFromFormat("%.2f %.2f", m_center.x * CENTER_CONFIG_SCALE,
m_center.y * CENTER_CONFIG_SCALE);

section->Set(group + CENTER_CONFIG_NAME, center_data, "");
}

ReshapableInput::ReshapeData ReshapableInput::Reshape(ControlState x, ControlState y,
ControlState modifier)
{
x -= m_center.x;
y -= m_center.y;

// TODO: make the AtAngle functions work with negative angles:
const ControlState angle = std::atan2(y, x) + MathUtil::TAU;

@@ -97,6 +97,9 @@ class ReshapableInput : public ControlGroup
const CalibrationData& GetCalibrationData() const;
void SetCalibrationData(CalibrationData data);

const ReshapeData& GetCenter() const;
void SetCenter(ReshapeData center);

protected:
ReshapeData Reshape(ControlState x, ControlState y, ControlState modifier = 0.0);

@@ -106,6 +109,7 @@ class ReshapableInput : public ControlGroup

CalibrationData m_calibration;
SettingValue<double> m_deadzone_setting;
ReshapeData m_center;
};

} // namespace ControllerEmu

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