1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the tools applications of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include <QtGui>
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43 | #include <QtDebug>
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44 |
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45 | #include <private/qpaintengineex_p.h>
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46 | #include <private/qpaintbuffer_p.h>
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47 |
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48 | class ReplayWidget : public QWidget
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49 | {
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50 | Q_OBJECT
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51 | public:
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52 | ReplayWidget(const QString &filename, int from, int to, bool single, int frame);
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53 |
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54 | void paintEvent(QPaintEvent *event);
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55 | void resizeEvent(QResizeEvent *event);
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56 |
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57 | public slots:
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58 | void updateRect();
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59 |
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60 | public:
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61 | QList<QRegion> updates;
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62 | QPaintBuffer buffer;
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63 |
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64 | int currentFrame;
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65 | int currentIteration;
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66 | QTime timer;
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67 |
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68 | QList<uint> visibleUpdates;
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69 |
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70 | QVector<uint> iterationTimes;
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71 | QString filename;
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72 |
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73 | int from;
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74 | int to;
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75 |
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76 | bool single;
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77 |
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78 | int frame;
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79 | int currentCommand;
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80 | };
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81 |
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82 | void ReplayWidget::updateRect()
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83 | {
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84 | if (frame >= 0 && !updates.isEmpty())
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85 | update(updates.at(frame));
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86 | else if (!visibleUpdates.isEmpty())
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87 | update(updates.at(visibleUpdates.at(currentFrame)));
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88 | }
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89 |
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90 | const int singleFrameRepeatsPerCommand = 100;
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91 | const int singleFrameIterations = 4;
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92 |
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93 | void ReplayWidget::paintEvent(QPaintEvent *)
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94 | {
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95 | QPainter p(this);
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96 |
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97 | QTimer::singleShot(0, this, SLOT(updateRect()));
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98 |
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99 | // p.setClipRegion(frames.at(currentFrame).updateRegion);
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100 |
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101 | if (frame >= 0) {
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102 | int start = buffer.frameStartIndex(frame);
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103 | int end = buffer.frameEndIndex(frame);
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104 |
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105 | iterationTimes.resize(end - start);
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106 |
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107 | int saveRestoreStackDepth = buffer.processCommands(&p, start, start + currentCommand);
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108 |
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109 | for (int i = 0; i < saveRestoreStackDepth; ++i)
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110 | p.restore();
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111 |
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112 | const int repeats = currentIteration >= 3 ? singleFrameRepeatsPerCommand : 1;
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113 |
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114 | ++currentFrame;
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115 | if (currentFrame == repeats) {
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116 | currentFrame = 0;
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117 | if (currentIteration >= 3) {
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118 | iterationTimes[currentCommand - 1] = qMin(iterationTimes[currentCommand - 1], uint(timer.elapsed()));
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119 | timer.restart();
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120 | }
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121 |
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122 | if (currentIteration >= singleFrameIterations + 3) {
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123 | printf(" # | ms | description\n");
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124 | printf("------+---------+------------------------------------------------------------\n");
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125 |
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126 | qSort(iterationTimes);
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127 |
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128 | int sum = 0;
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129 | for (int i = 0; i < iterationTimes.size(); ++i) {
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130 | int delta = iterationTimes.at(i);
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131 | if (i > 0)
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132 | delta -= iterationTimes.at(i-1);
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133 | sum += delta;
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134 | qreal deltaF = delta / qreal(repeats);
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135 | printf("%.5d | %.5f | %s\n", i, deltaF, qPrintable(buffer.commandDescription(start + i)));
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136 | }
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137 | printf("Total | %.5f | Total frame time\n", sum / qreal(repeats));
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138 | deleteLater();
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139 | return;
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140 | }
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141 |
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142 | if (start + currentCommand >= end) {
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143 | currentCommand = 1;
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144 | ++currentIteration;
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145 | if (currentIteration == 3) {
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146 | timer.start();
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147 | iterationTimes.fill(uint(-1));
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148 | }
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149 | if (currentIteration >= 3 && currentIteration < singleFrameIterations + 3)
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150 | printf("Profiling iteration %d of %d\n", currentIteration - 2, singleFrameIterations);
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151 | } else {
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152 | ++currentCommand;
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153 | }
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154 | }
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155 |
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156 | return;
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157 | }
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158 |
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159 | buffer.draw(&p, visibleUpdates.at(currentFrame));
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160 |
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161 | ++currentFrame;
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162 | if (currentFrame >= visibleUpdates.size()) {
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163 | currentFrame = 0;
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164 | ++currentIteration;
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165 |
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166 | if (single) {
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167 | deleteLater();
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168 | return;
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169 | }
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170 |
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171 | if (currentIteration == 3)
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172 | timer.start();
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173 | else if (currentIteration > 3) {
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174 | iterationTimes << timer.elapsed();
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175 | timer.restart();
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176 |
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177 | if (iterationTimes.size() >= 3) {
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178 | qreal mean = 0;
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179 | qreal stddev = 0;
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180 | uint min = INT_MAX;
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181 |
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182 | for (int i = 0; i < iterationTimes.size(); ++i) {
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183 | mean += iterationTimes.at(i);
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184 | min = qMin(min, iterationTimes.at(i));
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185 | }
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186 |
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187 | mean /= qreal(iterationTimes.size());
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188 |
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189 | for (int i = 0; i < iterationTimes.size(); ++i) {
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190 | qreal delta = iterationTimes.at(i) - mean;
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191 | stddev += delta * delta;
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192 | }
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193 |
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194 | stddev = qSqrt(stddev / iterationTimes.size());
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195 |
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196 | qSort(iterationTimes.begin(), iterationTimes.end());
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197 | uint median = iterationTimes.at(iterationTimes.size() / 2);
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198 |
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199 | stddev = 100 * stddev / mean;
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200 |
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201 | if (iterationTimes.size() >= 10 || stddev < 4) {
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202 | printf("%s, iterations: %d, frames: %d, min(ms): %d, median(ms): %d, stddev: %f %%, max(fps): %f\n", qPrintable(filename),
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203 | iterationTimes.size(), visibleUpdates.size(), min, median, stddev, 1000. * visibleUpdates.size() / min);
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204 | deleteLater();
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205 | return;
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206 | }
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207 | }
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208 | }
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209 | }
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210 | }
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211 |
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212 | void ReplayWidget::resizeEvent(QResizeEvent *)
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213 | {
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214 | visibleUpdates.clear();
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215 |
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216 | QRect bounds = rect();
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217 |
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218 | int first = qMax(0, from);
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219 | int last = qMin(unsigned(to), unsigned(updates.size()));
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220 | for (int i = first; i < last; ++i) {
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221 | if (updates.at(i).intersects(bounds))
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222 | visibleUpdates << i;
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223 | }
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224 |
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225 | int range = last - first;
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226 |
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227 | if (visibleUpdates.size() != range)
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228 | printf("Warning: skipped %d frames due to limited resolution\n", range - visibleUpdates.size());
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229 |
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230 | }
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231 |
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232 | ReplayWidget::ReplayWidget(const QString &filename_, int from_, int to_, bool single_, int frame_)
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233 | : currentFrame(0)
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234 | , currentIteration(0)
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235 | , filename(filename_)
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236 | , from(from_)
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237 | , to(to_)
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238 | , single(single_)
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239 | , frame(frame_)
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240 | , currentCommand(1)
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241 | {
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242 | setWindowTitle(filename);
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243 | QFile file(filename);
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244 |
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245 | if (!file.open(QIODevice::ReadOnly)) {
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246 | printf("Failed to load input file '%s'\n", qPrintable(filename_));
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247 | return;
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248 | }
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249 |
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250 | QDataStream in(&file);
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251 |
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252 | char *data;
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253 | uint size;
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254 | in.readBytes(data, size);
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255 | bool isTraceFile = size >= 7 && qstrncmp(data, "qttrace", 7) == 0;
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256 |
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257 | uint version = 0;
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258 | if (size == 9 && qstrncmp(data, "qttraceV2", 9) == 0) {
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259 | in.setFloatingPointPrecision(QDataStream::SinglePrecision);
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260 | in >> version;
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261 | }
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262 |
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263 | if (!isTraceFile) {
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264 | printf("File '%s' is not a trace file\n", qPrintable(filename_));
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265 | return;
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266 | }
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267 |
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268 | in >> buffer >> updates;
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269 | printf("Read paint buffer version %d with %d frames\n", version, buffer.numFrames());
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270 |
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271 | resize(buffer.boundingRect().size().toSize());
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272 |
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273 | setAutoFillBackground(false);
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274 | setAttribute(Qt::WA_NoSystemBackground);
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275 |
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276 | QTimer::singleShot(10, this, SLOT(updateRect()));
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277 | }
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278 |
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279 | int main(int argc, char **argv)
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280 | {
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281 | QApplication app(argc, argv);
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282 |
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283 | if (argc <= 1 || qstrcmp(argv[1], "-h") == 0 || qstrcmp(argv[1], "--help") == 0) {
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284 | printf("Replays a tracefile generated with '-graphicssystem trace'\n");
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285 | printf("Usage:\n > %s [OPTIONS] [traceFile]\n", argv[0]);
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286 | printf("OPTIONS\n"
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287 | " --range=from-to to specify a frame range.\n"
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288 | " --singlerun to do only one run (without statistics)\n"
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289 | " --instrumentframe=frame to instrument a single frame\n");
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290 | return 1;
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291 | }
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292 |
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293 | QFile file(app.arguments().last());
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294 | if (!file.exists()) {
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295 | printf("%s does not exist\n", qPrintable(app.arguments().last()));
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296 | return 1;
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297 | }
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298 |
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299 | bool single = false;
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300 |
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301 | int frame = -1;
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302 |
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303 | int from = 0;
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304 | int to = -1;
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305 | for (int i = 1; i < app.arguments().size() - 1; ++i) {
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306 | QString arg = app.arguments().at(i);
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307 | if (arg.startsWith(QLatin1String("--range="))) {
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308 | QString rest = arg.mid(8);
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309 | QStringList components = rest.split(QLatin1Char('-'));
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310 |
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311 | bool ok1 = false;
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312 | bool ok2 = false;
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313 | int fromCandidate = 0;
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314 | int toCandidate = 0;
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315 | if (components.size() == 2) {
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316 | fromCandidate = components.first().toInt(&ok1);
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317 | toCandidate = components.last().toInt(&ok2);
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318 | }
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319 |
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320 | if (ok1 && ok2) {
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321 | from = fromCandidate;
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322 | to = toCandidate;
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323 | } else {
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324 | printf("ERROR: malformed syntax in argument %s\n", qPrintable(arg));
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325 | }
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326 | } else if (arg == QLatin1String("--singlerun")) {
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327 | single = true;
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328 | } else if (arg.startsWith(QLatin1String("--instrumentframe="))) {
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329 | QString rest = arg.mid(18);
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330 | bool ok = false;
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331 | int frameCandidate = rest.toInt(&ok);
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332 | if (ok) {
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333 | frame = frameCandidate;
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334 | } else {
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335 | printf("ERROR: malformed syntax in argument %s\n", qPrintable(arg));
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336 | }
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337 | } else {
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338 | printf("Unrecognized argument: %s\n", qPrintable(arg));
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339 | return 1;
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340 | }
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341 | }
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342 |
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343 | ReplayWidget *widget = new ReplayWidget(app.arguments().last(), from, to, single, frame);
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344 |
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345 | if (!widget->updates.isEmpty()) {
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346 | widget->show();
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347 | return app.exec();
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348 | }
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349 |
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350 | }
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351 | #include "main.moc"
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