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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 #include "SkMath.h" | 9 #include "SkMath.h" | 
| 10 #include "SkMatrix.h" | 10 #include "SkMatrix.h" | 
| 11 #include "SkMatrixUtils.h" | 11 #include "SkMatrixUtils.h" | 
| 12 #include "SkRandom.h" | 12 #include "SkRandom.h" | 
| 13 | 13 | 
| 14 static bool nearly_equal_scalar(SkScalar a, SkScalar b) { | 14 static bool nearly_equal_scalar(SkScalar a, SkScalar b) { | 
| 15     // Note that we get more compounded error for multiple operations when | 15     // Note that we get more compounded error for multiple operations when | 
| 16     // SK_SCALAR_IS_FIXED. | 16     // SK_SCALAR_IS_FIXED. | 
| 17 #ifdef SK_SCALAR_IS_FLOAT | 17 #ifdef SK_SCALAR_IS_FLOAT | 
| 18     const SkScalar tolerance = SK_Scalar1 / 200000; | 18     const SkScalar tolerance = SK_Scalar1 / 200000; | 
| 19 #else | 19 #else | 
| 20     const SkScalar tolerance = SK_Scalar1 / 1024; | 20     const SkScalar tolerance = SK_Scalar1 / 1024; | 
| 21 #endif | 21 #endif | 
| 22 | 22 | 
| 23     return SkScalarAbs(a - b) <= tolerance; | 23     return SkScalarAbs(a - b) <= tolerance; | 
| 24 } | 24 } | 
| 25 | 25 | 
| 26 static bool nearly_equal(const SkMatrix& a, const SkMatrix& b) { | 26 static bool nearly_equal(const SkMatrix& a, const SkMatrix& b) { | 
| 27     for (int i = 0; i < 9; i++) { | 27     for (int i = 0; i < 9; i++) { | 
| 28         if (!nearly_equal_scalar(a[i], b[i])) { | 28         if (!nearly_equal_scalar(a[i], b[i])) { | 
| 29             printf("not equal %g %g\n", (float)a[i], (float)b[i]); | 29             SkDebugf("not equal %g %g\n", (float)a[i], (float)b[i]); | 
| 30             return false; | 30             return false; | 
| 31         } | 31         } | 
| 32     } | 32     } | 
| 33     return true; | 33     return true; | 
| 34 } | 34 } | 
| 35 | 35 | 
| 36 static bool are_equal(skiatest::Reporter* reporter, | 36 static bool are_equal(skiatest::Reporter* reporter, | 
| 37                       const SkMatrix& a, | 37                       const SkMatrix& a, | 
| 38                       const SkMatrix& b) { | 38                       const SkMatrix& b) { | 
| 39     bool equal = a == b; | 39     bool equal = a == b; | 
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| 798 | 798 | 
| 799     test_matrix_max_stretch(reporter); | 799     test_matrix_max_stretch(reporter); | 
| 800     test_matrix_is_similarity(reporter); | 800     test_matrix_is_similarity(reporter); | 
| 801     test_matrix_recttorect(reporter); | 801     test_matrix_recttorect(reporter); | 
| 802     test_matrix_decomposition(reporter); | 802     test_matrix_decomposition(reporter); | 
| 803     test_matrix_homogeneous(reporter); | 803     test_matrix_homogeneous(reporter); | 
| 804 } | 804 } | 
| 805 | 805 | 
| 806 #include "TestClassDef.h" | 806 #include "TestClassDef.h" | 
| 807 DEFINE_TESTCLASS("Matrix", MatrixTestClass, TestMatrix) | 807 DEFINE_TESTCLASS("Matrix", MatrixTestClass, TestMatrix) | 
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