gtk2_ardour/curvetest.cc

   1 /*
   2     Copyright (C) 2000-2007 Paul Davis
   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., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <iostream>
  21 #include <fstream>
  22 #include <cfloat>
  23 #include <unistd.h>
  24
  25 #include "ardour/automation_list.h"
  26 #include "evoral/Curve.hpp"
  27
  28 using namespace std;
  29 using namespace ARDOUR;
  30 using namespace PBD;
  31
  32 int
  33 curvetest (string filename)
  34 {
  35         ifstream in (filename.c_str());
  36         stringstream line;
  37         //Evoral::Parameter param(GainAutomation, -1.0, +1.0, 0.0);
  38         Evoral::Parameter param(GainAutomation);
  39         AutomationList al (param);
  40         double minx = DBL_MAX;
  41         double maxx = DBL_MIN;
  42
  43         // needed to initialize ID objects/counter used
  44         // by Curve et al.
  45
  46         PBD::ID::init ();
  47
  48         while (in) {
  49                 double x, y;
  50
  51                 in >> x;
  52                 in >> y;
  53
  54                 if (!in) {
  55                         break;
  56                 }
  57
  58                 if (x < minx) {
  59                         minx = x;
  60                 }
  61
  62                 if (x > maxx) {
  63                         maxx = x;
  64                 }
  65
  66                 al.add (x, y);
  67         }
  68
  69
  70         float foo[1024];
  71
  72         al.curve().get_vector (minx, maxx, foo, 1024);
  73
  74         for (int i = 0; i < 1024; ++i) {
  75                 cout << minx + (((double) i / 1024.0) * (maxx - minx)) << ' ' << foo[i] << endl;
  76         }
  77
  78         return 0;
  79 }