Commit 43cd10509f633a34e4660d74536593b7f01987dd
Merge pull request #219 from biometrics/stopwatch
A stopwatch and profiler to get time data for specified openbr transforms
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openbr/plugins/time.cpp
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| 1 | +#include <openbr/plugins/openbr_internal.h> | ||
| 2 | + | ||
| 3 | +namespace br | ||
| 4 | +{ | ||
| 5 | + | ||
| 6 | +/*! | ||
| 7 | + * \ingroup transforms | ||
| 8 | + * \brief Gives time elapsed over a specified transform as a function of both images (or frames) and pixels. | ||
| 9 | + * \author Jordan Cheney \cite JordanCheney | ||
| 10 | + */ | ||
| 11 | +class StopWatchTransform : public TimeVaryingTransform | ||
| 12 | +{ | ||
| 13 | + Q_OBJECT | ||
| 14 | + | ||
| 15 | + Q_PROPERTY(br::Transform* child READ get_child WRITE set_child RESET reset_child) | ||
| 16 | + BR_PROPERTY(br::Transform*, child, NULL) | ||
| 17 | + | ||
| 18 | + long timeElapsed; | ||
| 19 | + long numImgs; | ||
| 20 | + long numPixels; | ||
| 21 | + | ||
| 22 | +public: | ||
| 23 | + StopWatchTransform() : TimeVaryingTransform(false, false) | ||
| 24 | + { | ||
| 25 | + timeElapsed = 0; | ||
| 26 | + numImgs = 0; | ||
| 27 | + numPixels = 0; | ||
| 28 | + } | ||
| 29 | + | ||
| 30 | +private: | ||
| 31 | + void projectUpdate(const Template &src, Template &dst) | ||
| 32 | + { | ||
| 33 | + QTime watch; | ||
| 34 | + | ||
| 35 | + if (child == NULL) | ||
| 36 | + qFatal("Can't find child transform! Command line syntax is StopWatch(name of transform to profile)"); | ||
| 37 | + | ||
| 38 | + watch.start(); | ||
| 39 | + | ||
| 40 | + child->project(src, dst); | ||
| 41 | + | ||
| 42 | + int time = watch.elapsed(); | ||
| 43 | + | ||
| 44 | + timeElapsed += time; | ||
| 45 | + numImgs++; | ||
| 46 | + numPixels += (src.m().rows * src.m().cols); | ||
| 47 | + } | ||
| 48 | + | ||
| 49 | + void finalize(TemplateList &output) | ||
| 50 | + { | ||
| 51 | + (void)output; | ||
| 52 | + | ||
| 53 | + qDebug() << "\n\nProfiled " << numImgs << " images:\n" << | ||
| 54 | + "\tavg time per image: " << (double)timeElapsed / numImgs << " ms\n" << | ||
| 55 | + "\tavg time per pixel: " << (double)timeElapsed / numPixels << " ms\n"; | ||
| 56 | + | ||
| 57 | + timeElapsed = 0; | ||
| 58 | + numImgs = 0; | ||
| 59 | + numPixels = 0; | ||
| 60 | + } | ||
| 61 | +}; | ||
| 62 | + | ||
| 63 | +BR_REGISTER(Transform, StopWatchTransform) | ||
| 64 | + | ||
| 65 | +} //namespace br | ||
| 66 | + | ||
| 67 | +#include "time.moc" |