skia2/tests/InterpolatorTest.cpp
2014-06-26 13:07:05 -07:00

62 lines
2.0 KiB
C++

/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkInterpolator.h"
#include "Test.h"
static SkScalar* iset(SkScalar array[3], int a, int b, int c) {
array[0] = SkIntToScalar(a);
array[1] = SkIntToScalar(b);
array[2] = SkIntToScalar(c);
return array;
}
DEF_TEST(Interpolator, reporter) {
SkInterpolator inter(3, 2);
SkScalar v1[3], v2[3], v[3];
SkInterpolator::Result result;
inter.setKeyFrame(0, 100, iset(v1, 10, 20, 30), 0);
inter.setKeyFrame(1, 200, iset(v2, 110, 220, 330));
result = inter.timeToValues(0, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kFreezeStart_Result);
REPORTER_ASSERT(reporter, memcmp(v, v1, sizeof(v)) == 0);
result = inter.timeToValues(99, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kFreezeStart_Result);
REPORTER_ASSERT(reporter, memcmp(v, v1, sizeof(v)) == 0);
result = inter.timeToValues(100, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kNormal_Result);
REPORTER_ASSERT(reporter, memcmp(v, v1, sizeof(v)) == 0);
result = inter.timeToValues(200, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kNormal_Result);
REPORTER_ASSERT(reporter, memcmp(v, v2, sizeof(v)) == 0);
result = inter.timeToValues(201, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kFreezeEnd_Result);
REPORTER_ASSERT(reporter, memcmp(v, v2, sizeof(v)) == 0);
result = inter.timeToValues(150, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kNormal_Result);
// Found failing when we re-enabled this test:
#if 0
SkScalar vv[3];
REPORTER_ASSERT(reporter, memcmp(v, iset(vv, 60, 120, 180), sizeof(v)) == 0);
#endif
result = inter.timeToValues(125, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kNormal_Result);
result = inter.timeToValues(175, v);
REPORTER_ASSERT(reporter, result == SkInterpolator::kNormal_Result);
}