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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 #include "Test.h" | 8 #include "Test.h" |
9 | 9 |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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37 (float)crv[2].fX, (float)crv[2].fY, | 37 (float)crv[2].fX, (float)crv[2].fY, |
38 (float)crv[3].fX, (float)crv[3].fY); | 38 (float)crv[3].fX, (float)crv[3].fY); |
39 | 39 |
40 } | 40 } |
41 | 41 |
42 | 42 |
43 static bool CurvesAreEqual(const SkPoint c0[4], | 43 static bool CurvesAreEqual(const SkPoint c0[4], |
44 const SkPoint c1[4], | 44 const SkPoint c1[4], |
45 float tol) { | 45 float tol) { |
46 for (int i = 0; i < 4; i++) { | 46 for (int i = 0; i < 4; i++) { |
47 if (SkScalarAbs(c0[i].fX - c1[i].fX) > SkFloatToScalar(tol) || | 47 if (SkScalarAbs(c0[i].fX - c1[i].fX) > tol || |
48 SkScalarAbs(c0[i].fY - c1[i].fY) > SkFloatToScalar(tol) | 48 SkScalarAbs(c0[i].fY - c1[i].fY) > tol |
49 ) { | 49 ) { |
50 PrintCurve("c0", c0); | 50 PrintCurve("c0", c0); |
51 PrintCurve("c1", c1); | 51 PrintCurve("c1", c1); |
52 return false; | 52 return false; |
53 } | 53 } |
54 } | 54 } |
55 return true; | 55 return true; |
56 } | 56 } |
57 | 57 |
58 | 58 |
59 static SkPoint* SetCurve(float x0, float y0, | 59 static SkPoint* SetCurve(float x0, float y0, |
60 float x1, float y1, | 60 float x1, float y1, |
61 float x2, float y2, | 61 float x2, float y2, |
62 float x3, float y3, | 62 float x3, float y3, |
63 SkPoint crv[4]) { | 63 SkPoint crv[4]) { |
64 crv[0].fX = SkFloatToScalar(x0); crv[0].fY = SkFloatToScalar(y0); | 64 crv[0].fX = x0; crv[0].fY = y0; |
65 crv[1].fX = SkFloatToScalar(x1); crv[1].fY = SkFloatToScalar(y1); | 65 crv[1].fX = x1; crv[1].fY = y1; |
66 crv[2].fX = SkFloatToScalar(x2); crv[2].fY = SkFloatToScalar(y2); | 66 crv[2].fX = x2; crv[2].fY = y2; |
67 crv[3].fX = SkFloatToScalar(x3); crv[3].fY = SkFloatToScalar(y3); | 67 crv[3].fX = x3; crv[3].fY = y3; |
68 return crv; | 68 return crv; |
69 } | 69 } |
70 | 70 |
71 | 71 |
72 static void TestCubicClipping(skiatest::Reporter* reporter) { | 72 static void TestCubicClipping(skiatest::Reporter* reporter) { |
73 static SkPoint crv[4] = { | 73 static SkPoint crv[4] = { |
74 { SkIntToScalar(0), SkIntToScalar(0) }, | 74 { SkIntToScalar(0), SkIntToScalar(0) }, |
75 { SkIntToScalar(2), SkIntToScalar(3) }, | 75 { SkIntToScalar(2), SkIntToScalar(3) }, |
76 { SkIntToScalar(1), SkIntToScalar(10) }, | 76 { SkIntToScalar(1), SkIntToScalar(10) }, |
77 { SkIntToScalar(4), SkIntToScalar(12) } | 77 { SkIntToScalar(4), SkIntToScalar(12) } |
78 }; | 78 }; |
79 | 79 |
80 SkCubicClipper clipper; | 80 SkCubicClipper clipper; |
81 SkPoint clipped[4], shouldbe[4]; | 81 SkPoint clipped[4], shouldbe[4]; |
82 SkIRect clipRect; | 82 SkIRect clipRect; |
83 bool success; | 83 bool success; |
84 const float tol = SkFloatToScalar(1e-4f); | 84 const float tol = 1e-4f; |
85 | 85 |
86 // Test no clip, with plenty of room. | 86 // Test no clip, with plenty of room. |
87 clipRect.set(-2, -2, 6, 14); | 87 clipRect.set(-2, -2, 6, 14); |
88 clipper.setClip(clipRect); | 88 clipper.setClip(clipRect); |
89 success = clipper.clipCubic(crv, clipped); | 89 success = clipper.clipCubic(crv, clipped); |
90 REPORTER_ASSERT(reporter, success == true); | 90 REPORTER_ASSERT(reporter, success == true); |
91 REPORTER_ASSERT(reporter, CurvesAreEqual(clipped, SetCurve( | 91 REPORTER_ASSERT(reporter, CurvesAreEqual(clipped, SetCurve( |
92 0, 0, 2, 3, 1, 10, 4, 12, shouldbe), tol)); | 92 0, 0, 2, 3, 1, 10, 4, 12, shouldbe), tol)); |
93 | 93 |
94 // Test no clip, touching first point. | 94 // Test no clip, touching first point. |
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162 shouldbe), tol)); | 162 shouldbe), tol)); |
163 | 163 |
164 test_giantClip(); | 164 test_giantClip(); |
165 } | 165 } |
166 | 166 |
167 | 167 |
168 | 168 |
169 | 169 |
170 #include "TestClassDef.h" | 170 #include "TestClassDef.h" |
171 DEFINE_TESTCLASS("CubicClipper", CubicClippingTestClass, TestCubicClipping) | 171 DEFINE_TESTCLASS("CubicClipper", CubicClippingTestClass, TestCubicClipping) |
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