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#include "CurveTest.hpp"
#include "evoral/ControlList.hpp"
#include "evoral/Curve.hpp"
#include <stdlib.h>
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::twoPointLinear ()
{
float vec[1024];
boost::shared_ptr<Evoral::ControlList> cl = TestCtrlList();
cl->create_curve ();
cl->set_interpolation (ControlList::Linear);
// 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 (1024.0, 2047.0, vec, 1024);
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);
// 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]);
}
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