perf/perf-suite-generator/GraphGenerator.cs

   1 /*
   2  * Copyright (c) 2008 Novell, Inc. (http://www.novell.com)
   3  *
   4  * Contact:
   5  *  Moonlight List (moonlight-list@lists.ximian.com)
   6  *
   7  * Permission is hereby granted, free of charge, to any person
   8  * obtaining a copy of this software and associated documentation
   9  * files (the "Software"), to deal in the Software without
  10  * restriction, including without limitation the rights to use,
  11  * copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following
  14  * conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be
  17  * included in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  21  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  23  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  24  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  26  * OTHER DEALINGS IN THE SOFTWARE.
  27  *
  28  */
  29
  30 using System;
  31 using System.Collections.Generic;
  32 using PerfSuiteLib;
  33 using Cairo;
  34
  35 namespace PerfSuiteGenerator {
  36
  37         public static class GraphGenerator {
  38
  39                 public static void GenerateGraph (List <ResultDbEntry> resultList, string filename)
  40                 {
  41                         // FIXME Exception if more than 50 results...
  42
  43                         ImageSurface surface = new ImageSurface (Format.Rgb24, 103, 52);
  44                         Context context = new Context (surface);
  45
  46                         // Fill with grad
  47                         LinearGradient grad = new LinearGradient (0.0, 0.0, 0.0, 52.0);
  48                         grad.AddColorStopRgb (0.0, new Color  (1.0, 1.0, 1.0));
  49                         grad.AddColorStopRgb (1.0, new Color  (0.8, 0.8, 0.9));
  50                         context.Pattern = grad;
  51                         context.Paint ();
  52
  53                         // Frame
  54                         context.SetSourceRGB (0, 0, 0);
  55                         context.LineWidth = 1.0;
  56                         context.Rectangle (0.5, 0.5, 102.0, 51.0);
  57                         context.Stroke ();
  58
  59                         long denominator = (long) (FindBiggestResult (resultList) * 1.2);
  60
  61                         context.LineWidth = 1.5;
  62
  63                         // FIXME Reverse to copy
  64                         resultList.Reverse ();
  65
  66                         double x = 100.5 - ((resultList.Count - 1) * 2.0);
  67                         bool hasPrevResult = false;
  68                         long prevResult = 0;
  69
  70                         foreach (ResultDbEntry entry in resultList) {
  71
  72                                 if (entry.Failure) {
  73                                         x += 2.0;
  74                                         continue;
  75                                 }
  76
  77                                 double sz = ((double) entry.Time / denominator) * 50.0;
  78
  79                                 if (hasPrevResult && UtilFu.GetValueDifference (prevResult, entry.Time) > 0.1)
  80                                         context.SetSourceRGB (1.0, 0.0, 0.0);
  81                                 else if (hasPrevResult && UtilFu.GetValueDifference (prevResult, entry.Time) < -0.1)
  82                                         context.SetSourceRGB (0.0, 1.0, 0.0);
  83                                 else
  84                                         context.SetSourceRGB (0.4, 0.4, 0.4);
  85
  86                                 context.MoveTo (x, 51);
  87                                 context.LineTo (x, 51 - sz);
  88                                 context.Stroke ();
  89
  90                                 x += 2.0;
  91
  92                                 hasPrevResult = true;
  93                                 prevResult = entry.Time;
  94                         }
  95
  96                         surface.WriteToPng (filename);
  97
  98                         resultList.Reverse ();
  99                         ((IDisposable) context).Dispose ();
 100                         ((IDisposable) surface).Dispose ();
 101                 }
 102
 103                 private static long FindBiggestResult (List <ResultDbEntry> resultList)
 104                 {
 105                         long biggest = 0;
 106                         foreach (ResultDbEntry entry in resultList)
 107                                 biggest = Math.Max (biggest, entry.Time);
 108
 109                         return biggest;
 110                 }
 111
 112         }
 113 }
 114
 115