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viewer: minor profiling

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Allows users to show FPS counter and skipped frames count.
This commit is contained in:
itsmattkc
2021-03-10 13:40:17 +11:00
parent b1328c013b
commit 60e828efa8
3 changed files with 87 additions and 1 deletions
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app/widget/viewer/viewerdisplay.cpp
+43 -1
View File
@@ -45,7 +45,9 @@ ViewerDisplayWidget::ViewerDisplayWidget(QWidget *parent) :
gizmo_click_(false),
last_loaded_buffer_(nullptr),
hand_dragging_(false),
deinterlace_(false)
deinterlace_(false),
show_fps_(false),
frames_skipped_(0)
{
connect(Core::instance(), &Core::ToolChanged, this, &ViewerDisplayWidget::UpdateCursor);
@@ -181,6 +183,12 @@ QPoint ViewerDisplayWidget::TransformViewerSpaceToBufferSpace(QPoint pos)
return pos * GenerateGizmoTransform().inverted();
}
void ViewerDisplayWidget::ResetFPSTimer()
{
fps_timer_start_ = QDateTime::currentMSecsSinceEpoch();
fps_timer_update_count_ = 0;
}
void ViewerDisplayWidget::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton && gizmos_
@@ -348,6 +356,25 @@ void ViewerDisplayWidget::OnPaint()
p.drawLines(lines, 2);
}
if (show_fps_) {
QPainter p(inner_widget());
fps_timer_update_count_++;
qint64 now = QDateTime::currentMSecsSinceEpoch();
double frame_rate;
if (now == fps_timer_start_) {
// This will cause a divide by zero, so we do nothing here
frame_rate = 0;
} else {
frame_rate = double(fps_timer_update_count_) / double((now - fps_timer_start_)/1000.0);
}
DrawTextWithCrudeShadow(&p, inner_widget()->rect(), tr("%1 FPS").arg(QString::number(frame_rate, 'f', 2)));
if (frames_skipped_ > 0) {
DrawTextWithCrudeShadow(&p, inner_widget()->rect().adjusted(0, p.fontMetrics().height(), 0, 0),
tr("%1 frames skipped").arg(frames_skipped_));
}
}
}
void ViewerDisplayWidget::OnDestroy()
@@ -373,6 +400,14 @@ QPointF ViewerDisplayWidget::GetTexturePosition(const double &x, const double &y
y / gizmo_params_.height());
}
void ViewerDisplayWidget::DrawTextWithCrudeShadow(QPainter *painter, const QRect &rect, const QString &text)
{
painter->setPen(Qt::black);
painter->drawText(rect.adjusted(1, 1, 0, 0), text);
painter->setPen(Qt::white);
painter->drawText(rect, text);
}
rational ViewerDisplayWidget::GetGizmoTime()
{
return GetAdjustedTime(GetTimeTarget(), gizmos_, time_, true);
@@ -444,4 +479,11 @@ void ViewerDisplayWidget::EmitColorAtCursor(QMouseEvent *e)
}
}
void ViewerDisplayWidget::SetShowFPS(bool e)
{
show_fps_ = e;
update();
}
}