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debug ui lag

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This commit is contained in:
royjr
2025-09-23 04:04:52 -04:00
parent 8a5eaf5ba6
commit f2ddf9abba
1 changed files with 35 additions and 0 deletions
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selfdrive/ui/qt/onroad/model.cc
+35
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@@ -9,6 +9,21 @@ void ModelRenderer::drawRadarPoint(QPainter &painter, const QPointF &pos, float
}
void ModelRenderer::draw(QPainter &painter, const QRect &surface_rect) {
static double last_draw_t = millis_since_boot();
static float avg_frame_time = 50.0f; // ms
static float avg_fps = 20.0f;
double now = millis_since_boot();
double frame_time_ms = now - last_draw_t;
last_draw_t = now;
float fps = (frame_time_ms > 0) ? (1000.0f / frame_time_ms) : 0.0f;
// Stronger smoothing to reduce jutter
const float alpha = 0.02f; // smaller = smoother
avg_frame_time = (1 - alpha) * avg_frame_time + alpha * frame_time_ms;
avg_fps = (1 - alpha) * avg_fps + alpha * fps;
auto *s = uiState();
auto &sm = *(s->sm);
// Check if data is up-to-date
@@ -65,6 +80,26 @@ void ModelRenderer::draw(QPainter &painter, const QRect &surface_rect) {
drawLeadStatus(painter, surface_rect.height(), surface_rect.width());
// === Overlay FPS + Frame time (middle left) ===
painter.setPen(Qt::white);
QFont font("monospace", 48, QFont::Bold); // big and clear
painter.setFont(font);
QString fps_line = QString("FPS: %1 (avg %2)")
.arg(fps, 0, 'f', 1)
.arg(avg_fps, 0, 'f', 1);
QString frame_line = QString("Frame: %1 ms (avg %2 ms)")
.arg(frame_time_ms, 0, 'f', 1)
.arg(avg_frame_time, 0, 'f', 1);
int x = 30; // stick to left margin
int mid_y = surface_rect.center().y(); // vertical middle
int line_spacing = 40;
// draw FPS on first line, frame time just below
painter.drawText(x, mid_y - line_spacing/2, fps_line);
painter.drawText(x, mid_y + line_spacing/2, frame_line);
painter.restore();
}