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#include <sigc++/sigc++.h>
#include "interpolation-test.h"
CPPUNIT_TEST_SUITE_REGISTRATION( InterpolationTest );
using namespace std;
using namespace ARDOUR;
void
InterpolationTest::linearInterpolationTest ()
{
cout << "\nLinear Interpolation Test\n";
cout << "\nSpeed: 1.0";
linear.set_speed (1.0);
linear.set_target_speed (linear.speed());
nframes_t result = linear.interpolate (NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES; i += INTERVAL) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 0.5";
linear.set_speed (0.5);
linear.set_target_speed (linear.speed());
result = linear.interpolate (NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES; i += (INTERVAL / linear.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 0.2";
linear.set_speed (0.2);
linear.set_target_speed (linear.speed());
result = linear.interpolate (NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
cout << "\nSpeed: 0.02";
linear.set_speed (0.02);
linear.set_target_speed (linear.speed());
result = linear.interpolate (NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
cout << "\nSpeed: 0.002";
linear.set_speed (0.002);
linear.set_target_speed (linear.speed());
result = linear.interpolate (NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
cout << "\nSpeed: 2.0";
linear.set_speed (2.0);
linear.set_target_speed (linear.speed());
result = linear.interpolate (NUM_SAMPLES / 2, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES / 2 * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES / 2; i += (INTERVAL / linear.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 10.0";
linear.set_speed (10.0);
linear.set_target_speed (linear.speed());
result = linear.interpolate (NUM_SAMPLES / 10, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES / 10 * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES / 10; i += (INTERVAL / linear.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
/*
for (int i=0; i < NUM_SAMPLES; ++i) {
cout << "input[" << i << "] = " << input[i] << " output[" << i << "] = " << output[i] << endl;
}
*/
}
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