1 /*
2 * Copyright (c) 2017 Dmitry Kazakov <dimula73@gmail.com>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19 #include "KisStrokeEfficiencyMeasurer.h"
20
21 #include <QPointF>
22 #include <QVector>
23 #include <QElapsedTimer>
24
25 #include <boost/optional.hpp>
26
27 #include "kis_global.h"
28
29 struct KisStrokeEfficiencyMeasurer::Private
30 {
31 boost::optional<QPointF> lastSamplePos;
32 qreal distance = 0;
33
34 QElapsedTimer strokeTimeSource;
35 bool isEnabled = true;
36
37 int renderingStartTime = 0;
38 int renderingTime = 0;
39
40 int cursorMoveStartTime = 0;
41 int cursorMoveTime = 0;
42
43 int framesCount = 0;
44
45 };
46
KisStrokeEfficiencyMeasurer()47 KisStrokeEfficiencyMeasurer::KisStrokeEfficiencyMeasurer()
48 : m_d(new Private())
49 {
50 m_d->strokeTimeSource.start();
51 }
52
~KisStrokeEfficiencyMeasurer()53 KisStrokeEfficiencyMeasurer::~KisStrokeEfficiencyMeasurer()
54 {
55 }
56
setEnabled(bool value)57 void KisStrokeEfficiencyMeasurer::setEnabled(bool value)
58 {
59 m_d->isEnabled = value;
60 }
61
isEnabled() const62 bool KisStrokeEfficiencyMeasurer::isEnabled() const
63 {
64 return m_d->isEnabled;
65 }
66
addSample(const QPointF & pt)67 void KisStrokeEfficiencyMeasurer::addSample(const QPointF &pt)
68 {
69 if (!m_d->isEnabled) return;
70
71 if (!m_d->lastSamplePos) {
72 m_d->lastSamplePos = pt;
73 } else {
74 m_d->distance += kisDistance(pt, *m_d->lastSamplePos);
75 *m_d->lastSamplePos = pt;
76 }
77 }
78
addSamples(const QVector<QPointF> & points)79 void KisStrokeEfficiencyMeasurer::addSamples(const QVector<QPointF> &points)
80 {
81 if (!m_d->isEnabled) return;
82
83 Q_FOREACH (const QPointF &pt, points) {
84 addSample(pt);
85 }
86 }
87
notifyRenderingStarted()88 void KisStrokeEfficiencyMeasurer::notifyRenderingStarted()
89 {
90 m_d->renderingStartTime = m_d->strokeTimeSource.elapsed();
91 }
92
notifyRenderingFinished()93 void KisStrokeEfficiencyMeasurer::notifyRenderingFinished()
94 {
95 m_d->renderingTime = m_d->strokeTimeSource.elapsed() - m_d->renderingStartTime;
96 }
97
notifyCursorMoveStarted()98 void KisStrokeEfficiencyMeasurer::notifyCursorMoveStarted()
99 {
100 m_d->cursorMoveStartTime = m_d->strokeTimeSource.elapsed();
101 }
102
notifyCursorMoveFinished()103 void KisStrokeEfficiencyMeasurer::notifyCursorMoveFinished()
104 {
105 m_d->cursorMoveTime = m_d->strokeTimeSource.elapsed() - m_d->cursorMoveStartTime;
106 }
107
notifyFrameRenderingStarted()108 void KisStrokeEfficiencyMeasurer::notifyFrameRenderingStarted()
109 {
110 m_d->framesCount++;
111 }
112
averageCursorSpeed() const113 qreal KisStrokeEfficiencyMeasurer::averageCursorSpeed() const
114 {
115 return m_d->cursorMoveTime ? m_d->distance / m_d->cursorMoveTime : 0.0;
116 }
117
averageRenderingSpeed() const118 qreal KisStrokeEfficiencyMeasurer::averageRenderingSpeed() const
119 {
120 return m_d->renderingTime ? m_d->distance / m_d->renderingTime : 0.0;
121 }
122
averageFps() const123 qreal KisStrokeEfficiencyMeasurer::averageFps() const
124 {
125 return m_d->renderingTime ? m_d->framesCount * 1000.0 / m_d->renderingTime : 0.0;
126 }
127
128
129