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2-point Curve Linear Interpolation Test

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This commit is contained in:
Robin Gareus 2015-01-19 23:53:52 +01:00
parent 24b7473831
commit 5190cbc9b2
2 changed files with 69 additions and 17 deletions
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71
libs/evoral/test/CurveTest.cpp
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@ -7,26 +7,71 @@ CPPUNIT_TEST_SUITE_REGISTRATION (CurveTest);
using namespace Evoral;
// linear y = Y0 + YS * x ; with x = i * (X1 - X0) + X0; and i = [0..1023]
#define VEC1024LINCMP(X0, X1, Y0, YS) \
cl->curve ().get_vector ((X0), (X1), vec, 1024); \
for (int i = 0; i < 1024; ++i) { \
char msg[64]; \
snprintf (msg, 64, "at i=%d (x0=%.1f, x1=%.1f, y0=%.1f, ys=%.3f)", \
i, X0, X1, Y0, YS); \
CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE ( \
msg, \
(Y0) + i * (YS), vec[i], \
1e-24 \
); \
}
void
CurveTest::interpolateTest1 ()
CurveTest::twoPointLinear ()
{
float vec[1024];
Parameter param (Parameter(0));
const Evoral::ParameterDescriptor desc;
ControlList *cl (new ControlList(param, desc));
boost::shared_ptr<Evoral::ControlList> cl = TestCtrlList();
cl->create_curve();
cl->create_curve ();
cl->set_interpolation (ControlList::Linear);
cl->fast_simple_add(0.0 , 0.0);
cl->fast_simple_add(8191.0 , 8191.0);
// add two points to curve
cl->fast_simple_add ( 0.0 , 2048.0);
cl->fast_simple_add (8192.0 , 4096.0);
cl->curve().get_vector(1024, 2047, vec, 1024);
cl->curve ().get_vector (1024.0, 2047.0, vec, 1024);
for (int i = 0; i < 1024; ++i) {
CPPUNIT_ASSERT_EQUAL (1024.f + i, vec[i]);
}
VEC1024LINCMP (1024.0, 2047.0, 2304.f, .25f);
VEC1024LINCMP (2048.0, 2559.5, 2560.f, .125f);
VEC1024LINCMP ( 0.0, 4092.0, 2048.f, 1.f);
cl->destroy_curve();
delete cl;
// greetings to tartina
cl->curve ().get_vector (2048.0, 2048.0, vec, 1);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=1 @ 2048-2048", 2560.f, vec[0]);
/* XXX WHAT DO WE EXPECT WITH veclen=1 AND x1 > x0 ? */
#if 0
/* .. interpolated value at (x1+x0)/2 */
cl->curve ().get_vector (2048.0, 2049.0, vec, 1);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=1 @ 2048-2049", 2560.125f, vec[0]);
cl->curve ().get_vector (2048.0, 2056.0, vec, 1);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=1 @ 2048-2049", 2561.f, vec[0]);
#else
/* .. value at x0 */
cl->curve ().get_vector (2048.0, 2049.0, vec, 1);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=1 , 2048-2049", 2560.f, vec[0]);
cl->curve ().get_vector (2048.0, 2056.0, vec, 1);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=1 , 2048-2049", 2560.f, vec[0]);
#endif
cl->curve ().get_vector (2048.0, 2048.0, vec, 2);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=2 , 2048-2048 @ 0", 2560.f, vec[0]);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=2 , 2048-2048 @ 1", 2560.f, vec[1]);
cl->curve ().get_vector (2048.0, 2056.0, vec, 2);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=2 , 2048-2056 @ 0", 2560.f, vec[0]);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=2 , 2048-2056 @ 0", 2562.f, vec[1]);
cl->curve ().get_vector (2048.0, 2056.0, vec, 3);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=3 , 2048-2056 @ 0", 2560.f, vec[0]);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=3 , 2048-2056 @ 1", 2561.f, vec[1]);
CPPUNIT_ASSERT_EQUAL_MESSAGE ("veclen=3 , 2048-2056 @ 2", 2562.f, vec[2]);
}

15
libs/evoral/test/CurveTest.hpp
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@ -1,14 +1,21 @@
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <boost/shared_ptr.hpp>
#include "evoral/ControlList.hpp"
class CurveTest : public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE (CurveTest);
CPPUNIT_TEST (interpolateTest1);
CPPUNIT_TEST (twoPointLinear);
CPPUNIT_TEST_SUITE_END ();
public:
void interpolateTest1 ();
};
void twoPointLinear ();
private:
boost::shared_ptr<Evoral::ControlList> TestCtrlList() {
Evoral::Parameter param (Evoral::Parameter(0));
const Evoral::ParameterDescriptor desc;
return boost::shared_ptr<Evoral::ControlList> (new Evoral::ControlList(param, desc));
}
};