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livetrax/gtk2_ardour/curvetest.cc

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/*
* Copyright (C) 2006-2012 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2007-2009 David Robillard <d@drobilla.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include <fstream>
#include <cfloat>
#include <unistd.h>
#include "ardour/automation_list.h"
#include "evoral/Curve.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
int
curvetest (string filename)
{
ifstream in (filename.c_str());
stringstream line;
//Evoral::Parameter param(GainAutomation, -1.0, +1.0, 0.0);
Evoral::Parameter param(GainAutomation);
AutomationList al (param, Temporal::TimeDomainProvider (Temporal::AudioTime));
double minx = DBL_MAX;
double maxx = DBL_MIN;
while (in) {
double x, y;
in >> x;
in >> y;
if (!in) {
break;
}
if (x < minx) {
minx = x;
}
if (x > maxx) {
maxx = x;
}
al.add (Temporal::timepos_t (x), y);
}
float foo[1024];
al.curve().get_vector (timepos_t (minx), timepos_t (maxx), foo, 1024);
for (int i = 0; i < 1024; ++i) {
cout << minx + (((double) i / 1024.0) * (maxx - minx)) << ' ' << foo[i] << endl;
}
return 0;
}