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/*
Copyright (C) 2012 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ardour/playlist.h"
#include "ardour/region.h"
#include "ardour/audioregion.h"
#include "audio_region_read_test.h"
CPPUNIT_TEST_SUITE_REGISTRATION (AudioRegionReadTest);
using namespace std;
using namespace ARDOUR;
/** Check some basic reads */
void
AudioRegionReadTest::readTest ()
{
int const N = 1024;
Sample buf[N];
Sample mbuf[N];
float gbuf[N];
int const P = 100;
/* Simple read: 256 samples from start of region, no fades */
_ar[0]->set_position (P);
_ar[0]->set_length (1024);
_ar[0]->read_from_sources (_ar[0]->_sources, _ar[0]->_length, buf, P, 256, 0);
check_staircase (buf, 0, 256);
for (int i = 0; i < N; ++i) {
buf[i] = 0;
}
/* Offset read: 256 samples from 128 samples into the region, no fades */
_ar[0]->read_from_sources (_ar[0]->_sources, _ar[0]->_length, buf, P + 128, 256, 0);
check_staircase (buf, 128, 256);
/* Simple read with a fade-in: 256 samples from start of region, with fades */
_ar[0]->set_default_fade_in ();
CPPUNIT_ASSERT_EQUAL (double (64), _ar[0]->_fade_in->back()->when);
for (int i = 0; i < N; ++i) {
buf[i] = 0;
}
_ar[0]->read_at (buf, mbuf, gbuf, P, 256, 0);
for (int i = 0; i < 64; ++i) {
/* XXX: this isn't very accurate, but close enough for now; needs investigation */
CPPUNIT_ASSERT_DOUBLES_EQUAL (float (i * i / 63.0), buf[i], 1e-4);
}
for (int i = 64; i < P; ++i) {
CPPUNIT_ASSERT_EQUAL (i, int (buf[i]));
}
/* Offset read: 256 samples from 128 samples into the region, with fades
(though the fade should not affect it, as it is finished before the read starts)
*/
for (int i = 0; i < N; ++i) {
buf[i] = 0;
}
_ar[0]->read_at (buf, mbuf, gbuf, P + 128, 256, 0);
check_staircase (buf, 128, 256);
}
void
AudioRegionReadTest::check_staircase (Sample* b, int offset, int N)
{
for (int i = 0; i < N; ++i) {
int const j = i + offset;
CPPUNIT_ASSERT_EQUAL (j, int (b[i]));
}
}
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