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Add performance measurement

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This commit is contained in:
luisangelsm
2026-01-20 08:19:09 +01:00
parent d913fa137e
commit f2b3a696a9
2 changed files with 70 additions and 0 deletions
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58
common/rhi/yacreader_flow_rhi.cpp
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@ -1,5 +1,8 @@
#include "yacreader_flow_rhi.h"
#include <QFile>
#if defined(YACREADER_RHI_PERF)
#include <QElapsedTimer>
#endif
#include <cmath>
/*** Preset Configurations ***/
@ -56,6 +59,16 @@ YACReaderFlow3D::YACReaderFlow3D(QWidget *parent, struct Preset p)
indexLabel->setAttribute(Qt::WA_TransparentForMouseEvents);
indexLabel->setAutoFillBackground(false);
updateIndexLabelStyle();
#if defined(YACREADER_RHI_PERF)
// Create performance label (shows averaged render time)
perfLabel = new QLabel(this);
perfLabel->setAttribute(Qt::WA_TransparentForMouseEvents);
perfLabel->setAutoFillBackground(false);
perfLabel->setText(QString());
perfLabel->hide();
// Style will be applied by updateIndexLabelStyle()
#endif
}
YACReaderFlow3D::~YACReaderFlow3D()
@ -475,6 +488,12 @@ void YACReaderFlow3D::render(QRhiCommandBuffer *cb)
// Important: OpenGL draws reflections FIRST, then covers+marks (for correct depth sorting)
QVector<DrawInfo> draws;
// Start timing for this render call (measures CPU time spent in this function)
#if defined(YACREADER_RHI_PERF)
QElapsedTimer perfTimer;
perfTimer.start();
#endif
// Phase 1: Add all reflections
for (int idx : drawOrder) {
if (idx < 0 || idx >= images.size() || !images[idx].texture)
@ -599,6 +618,33 @@ void YACReaderFlow3D::render(QRhiCommandBuffer *cb)
}
cb->endPass();
// Measure elapsed CPU time for render and update perf label periodically
#if defined(YACREADER_RHI_PERF)
qint64 ns = perfTimer.nsecsElapsed();
double ms = double(ns) / 1e6;
perfAccumMs += ms;
perfAccumCount += 1;
perfFrameCounter += 1;
if (perfFrameCounter >= perfUpdateEvery) {
// compute average
if (perfAccumCount > 0)
lastRenderMs = perfAccumMs / perfAccumCount;
// reset accumulators
perfAccumMs = 0.0;
perfAccumCount = 0;
perfFrameCounter = 0;
if (perfLabel) {
perfLabel->setText(QString("R: %1 ms").arg(lastRenderMs, 0, 'f', 2));
perfLabel->adjustSize();
perfLabel->show();
}
}
#endif
}
void YACReaderFlow3D::prepareDrawData(const YACReader3DImageRHI &image, bool isReflection, bool isMark,
@ -1394,6 +1440,18 @@ void YACReaderFlow3D::updateIndexLabelStyle()
indexLabel->move(10, 10);
indexLabel->adjustSize();
// Position and style performance label below index label
#if defined(YACREADER_RHI_PERF)
if (perfLabel) {
perfLabel->setFont(font);
QPalette p = perfLabel->palette();
p.setColor(QPalette::WindowText, textColor);
perfLabel->setPalette(p);
perfLabel->move(10, 10 + indexLabel->height() + 4);
perfLabel->adjustSize();
}
#endif
}
QSize YACReaderFlow3D::minimumSizeHint() const

12
common/rhi/yacreader_flow_rhi.h
View File

@ -186,6 +186,18 @@ protected:
QLabel *indexLabel = nullptr;
IndexLabelState indexLabelState;
#if defined(YACREADER_RHI_PERF)
// Performance label (shows averaged render time)
QLabel *perfLabel = nullptr;
// Performance measurement state
double perfAccumMs = 0.0; // accumulated ms over samples
int perfAccumCount = 0; // number of samples accumulated
int perfFrameCounter = 0; // frames since last label update
int perfUpdateEvery = 30; // update label every N frames (reduce overhead)
double lastRenderMs = 0.0; // last averaged render time in ms
#endif
void timerEvent(QTimerEvent *) override;
int numObjects;