livetrax/gtk2_ardour/curvetest.cc

/*
 * 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;
}