openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#include "selfdrive/ui/qt/offroad/driverview.h"
#include <algorithm>
#include <QPainter>
#include "selfdrive/ui/qt/util.h"
DriverViewWindow::DriverViewWindow(QWidget* parent) : CameraWidget("camerad", VISION_STREAM_DRIVER, parent) {
QObject::connect(this, &CameraWidget::clicked, this, &DriverViewWindow::done);
QObject::connect(device(), &Device::interactiveTimeout, this, [this]() {
if (isVisible()) {
emit done();
}
});
}
void DriverViewWindow::showEvent(QShowEvent* event) {
params.putBool("IsDriverViewEnabled", true);
device()->resetInteractiveTimeout(60);
CameraWidget::showEvent(event);
}
void DriverViewWindow::hideEvent(QHideEvent* event) {
params.putBool("IsDriverViewEnabled", false);
stopVipcThread();
CameraWidget::hideEvent(event);
}
void DriverViewWindow::paintGL() {
CameraWidget::paintGL();
std::lock_guard lk(frame_lock);
QPainter p(this);
// startup msg
if (frames.empty()) {
p.setPen(Qt::white);
p.setRenderHint(QPainter::TextAntialiasing);
p.setFont(InterFont(100, QFont::Bold));
p.drawText(geometry(), Qt::AlignCenter, tr("camera starting"));
return;
}
const auto &sm = *(uiState()->sm);
cereal::DriverStateV2::Reader driver_state = sm["driverStateV2"].getDriverStateV2();
bool is_rhd = driver_state.getWheelOnRightProb() > 0.5;
auto driver_data = is_rhd ? driver_state.getRightDriverData() : driver_state.getLeftDriverData();
bool face_detected = driver_data.getFaceProb() > 0.7;
if (face_detected) {
auto fxy_list = driver_data.getFacePosition();
auto std_list = driver_data.getFaceOrientationStd();
float face_x = fxy_list[0];
float face_y = fxy_list[1];
float face_std = std::max(std_list[0], std_list[1]);
float alpha = 0.7;
if (face_std > 0.15) {
alpha = std::max(0.7 - (face_std-0.15)*3.5, 0.0);
}
const int box_size = 220;
// use approx instead of distort_points
int fbox_x = 1080.0 - 1714.0 * face_x;
int fbox_y = -135.0 + (504.0 + std::abs(face_x)*112.0) + (1205.0 - std::abs(face_x)*724.0) * face_y;
p.setPen(QPen(QColor(255, 255, 255, alpha * 255), 10));
p.drawRoundedRect(fbox_x - box_size / 2, fbox_y - box_size / 2, box_size, box_size, 35.0, 35.0);
}
driver_monitor.updateState(*uiState());
driver_monitor.draw(p, rect());
}
mat4 DriverViewWindow::calcFrameMatrix() {
const float driver_view_ratio = 2.0;
const float yscale = stream_height * driver_view_ratio / stream_width;
const float xscale = yscale * glHeight() / glWidth() * stream_width / stream_height;
return mat4{{
xscale, 0.0, 0.0, 0.0,
0.0, yscale, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, 1.0,
}};
}