1 | // EvalStats.cpp : Defines the entry point for the console application.
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2 | //
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3 | #include "stdafx.h"
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4 |
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5 | #include <string>
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6 | #include <vector>
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7 | #include <istream>
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8 | #include <iostream>
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9 | #include <fstream>
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10 |
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11 |
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12 | using namespace std;
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13 |
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14 | /** This is a small function which takes two log files and computes the
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15 | difference in percent of the weighted render cost.
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16 | */
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17 |
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18 |
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19 | struct RenderStats
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20 | {
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21 | float mRenderCost;
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22 | float mAvgRenderCost;
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23 | };
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24 |
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25 |
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26 | typedef vector<RenderStats> StatsContainer;
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27 |
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28 |
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29 | enum {NO_TAG, RENDER_COST, AVG_RENDER_COST};
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30 |
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31 |
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32 | bool extractRenderStats(ifstream &file, StatsContainer &renderStats)
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33 | {
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34 | if (!file.is_open())
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35 | return false;
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36 |
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37 | string buf;
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38 |
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39 | int currentTag = NO_TAG;
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40 |
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41 | while (!(getline(file, buf)).eof())
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42 | {
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43 | //cout << "buf: " << buf << endl;
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44 |
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45 | if (buf[0] == '#')
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46 | {
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47 | char entry[50];
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48 |
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49 | sscanf(buf.c_str(), "#%s", entry);
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50 |
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51 | // new entry
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52 | if (strcmp(entry, "Pass") == 0)
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53 | {
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54 | //cout << "\nnew render stat " << endl;
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55 | renderStats.push_back(RenderStats());
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56 | }
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57 | else if (strcmp(entry, "TotalRenderCost") == 0)
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58 | {
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59 | currentTag = RENDER_COST;
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60 | }
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61 | else if (strcmp(entry, "AvgRenderCost") == 0)
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62 | {
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63 | currentTag = AVG_RENDER_COST;
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64 | }
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65 | }
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66 | else
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67 | {
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68 | float val;
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69 | sscanf(buf.c_str(), "%f", &val);
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70 |
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71 | switch (currentTag)
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72 | {
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73 | case RENDER_COST:
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74 | //cout << "render cost: " << val << endl;
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75 | renderStats.back().mRenderCost = val;
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76 | break;
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77 | case AVG_RENDER_COST:
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78 | //cout << "avg render cost: " << val << endl;
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79 | renderStats.back().mAvgRenderCost = val;
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80 | break;
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81 | default:
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82 | break;
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83 | }
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84 |
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85 | currentTag = NO_TAG;
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86 | }
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87 | }
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88 |
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89 | return true;
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90 | }
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91 |
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92 |
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93 |
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94 | void ComputeStats(ofstream &statsOut,
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95 | const RenderStats &firstStats,
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96 | const RenderStats ¤tStats,
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97 | const int index)
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98 | {
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99 | float denom = firstStats.mRenderCost ? firstStats.mRenderCost : 0.000001f;
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100 | float costRatio = currentStats.mRenderCost / denom;
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101 |
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102 | denom = firstStats.mAvgRenderCost ? firstStats.mAvgRenderCost : 0.000001f;
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103 | float avgCostRatio = currentStats.mAvgRenderCost / denom;
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104 |
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105 | statsOut << "#ViewCells\n" << index + 1 << endl
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106 | //<< "#TotalRenderCostGain\n" << 100.0f - costRatio * 100.0f << endl
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107 | //<< "#AvgRenderCostGain\n" << 100.0f - avgCostRatio * 100.0f << endl << endl;
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108 | << "#TotalRenderCostGain\n" << 100.0f * costRatio - 100.0f<< endl
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109 | << "#AvgRenderCostGain\n" << 100.0f * avgCostRatio -100.0f << endl << endl;
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110 | }
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111 |
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112 |
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113 |
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114 | int _tmain(int argc, _TCHAR* argv[])
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115 | {
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116 | vector<StatsContainer> renderStats;
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117 |
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118 | if (argc < 3)
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119 | {
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120 | cerr << "arguments missing. Usage: input1 input2 ... intputn" << endl;
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121 | exit(1);
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122 | }
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123 |
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124 | vector<string> outFilenames;
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125 |
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126 | // read input files from command line
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127 | for (int i = 1; i < argc; ++ i)
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128 | {
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129 | StatsContainer currentStats;
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130 |
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131 | ifstream file(argv[i]);
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132 |
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133 | // extract the render cost
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134 | cout << "extracting render cost of file " << argv[i] << endl;
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135 | cout.flush();
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136 |
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137 | extractRenderStats(file, currentStats);
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138 | renderStats.push_back(currentStats);
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139 |
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140 | // create output file name
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141 | string fn = argv[i];
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142 |
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143 | string::size_type pos = fn.find(".log", 0);
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144 | fn.erase(pos, 4);
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145 | //sscanf(argv[i], "%s.log", fn);
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146 | string outFilename = string(fn) + string("-ratio.log");
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147 |
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148 | outFilenames.push_back(outFilename);
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149 | }
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150 |
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151 | //statsOut << "rc1 size: " << (int)renderCosts1.size() << " " << (int)renderCosts2.size() << endl << endl;
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152 | vector<StatsContainer>::const_iterator it = renderStats.begin(), it_end = renderStats.end();
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153 | vector<string>::const_iterator sit, sit_end = outFilenames.end();
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154 |
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155 | sit = outFilenames.begin();
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156 |
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157 | // compare all values with this vector
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158 | StatsContainer &firstStats = renderStats[0];
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159 |
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160 | // don't compare with itself
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161 | ++ it;
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162 | ++ sit;
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163 |
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164 | for (it; it != it_end; ++ it)
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165 | {
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166 | cout << "writing output to file " << *sit << endl;
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167 | ofstream statsOut((*sit).c_str());
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168 | ++ sit;
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169 |
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170 | // compute size of output vector
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171 | const int n = min((int)firstStats.size(), (int)(*it).size());
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172 |
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173 | for (int i = 0; i < n; ++ i)
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174 | {
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175 | ComputeStats(statsOut, firstStats[i], (*it)[i], i);
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176 | }
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177 |
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178 | statsOut.close();
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179 | }
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180 |
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181 | return 0;
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182 | }
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183 |
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