1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "Test.h" 9 #include "SkGeometry.h" 10 11 static bool nearly_equal(const SkPoint& a, const SkPoint& b) { 12 return SkScalarNearlyEqual(a.fX, b.fX) && SkScalarNearlyEqual(a.fY, b.fY); 13 } 14 15 static void testChopCubic(skiatest::Reporter* reporter) { 16 /* 17 Inspired by this test, which used to assert that the tValues had dups 18 19 <path stroke="#202020" d="M0,0 C0,0 1,1 2190,5130 C2190,5070 2220,5010 2205,4980" /> 20 */ 21 const SkPoint src[] = { 22 { SkIntToScalar(2190), SkIntToScalar(5130) }, 23 { SkIntToScalar(2190), SkIntToScalar(5070) }, 24 { SkIntToScalar(2220), SkIntToScalar(5010) }, 25 { SkIntToScalar(2205), SkIntToScalar(4980) }, 26 }; 27 SkPoint dst[13]; 28 SkScalar tValues[3]; 29 // make sure we don't assert internally 30 int count = SkChopCubicAtMaxCurvature(src, dst, tValues); 31 if (false) { // avoid bit rot, suppress warning 32 REPORTER_ASSERT(reporter, count); 33 } 34 } 35 36 37 static void TestGeometry(skiatest::Reporter* reporter) { 38 SkPoint pts[3], dst[5]; 39 40 pts[0].set(0, 0); 41 pts[1].set(100, 50); 42 pts[2].set(0, 100); 43 44 int count = SkChopQuadAtMaxCurvature(pts, dst); 45 REPORTER_ASSERT(reporter, count == 1 || count == 2); 46 47 pts[0].set(0, 0); 48 pts[1].set(SkIntToScalar(3), 0); 49 pts[2].set(SkIntToScalar(3), SkIntToScalar(3)); 50 SkConvertQuadToCubic(pts, dst); 51 const SkPoint cubic[] = { 52 { 0, 0, }, 53 { SkIntToScalar(2), 0, }, 54 { SkIntToScalar(3), SkIntToScalar(1), }, 55 { SkIntToScalar(3), SkIntToScalar(3) }, 56 }; 57 for (int i = 0; i < 4; ++i) { 58 REPORTER_ASSERT(reporter, nearly_equal(cubic[i], dst[i])); 59 } 60 61 testChopCubic(reporter); 62 } 63 64 #include "TestClassDef.h" 65 DEFINE_TESTCLASS("Geometry", GeometryTestClass, TestGeometry) 66
