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| 1 // Copyright 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "cc/base/math_util.h" | |
| 6 #include "testing/gtest/include/gtest/gtest.h" | |
| 7 #include "ui/gfx/geometry/quad_f.h" | |
| 8 #include "ui/gfx/geometry/rect_f.h" | |
| 9 #include "ui/gfx/transform.h" | |
| 10 | |
| 11 namespace cc { | |
| 12 namespace { | |
| 13 | |
| 14 // TODO(danakj) Move this test to ui/gfx/ when we don't need MathUtil::MapQuad. | |
| 15 TEST(FloatQuadTest, IsRectilinearTest) { | |
| 16 const int kNumRectilinear = 8; | |
| 17 gfx::Transform rectilinear_trans[kNumRectilinear]; | |
| 18 rectilinear_trans[1].Rotate(90.f); | |
| 19 rectilinear_trans[2].Rotate(180.f); | |
| 20 rectilinear_trans[3].Rotate(270.f); | |
| 21 rectilinear_trans[4].SkewX(0.00000000001f); | |
| 22 rectilinear_trans[5].SkewY(0.00000000001f); | |
| 23 rectilinear_trans[6].Scale(0.00001f, 0.00001f); | |
| 24 rectilinear_trans[6].Rotate(180.f); | |
| 25 rectilinear_trans[7].Scale(100000.f, 100000.f); | |
| 26 rectilinear_trans[7].Rotate(180.f); | |
| 27 | |
| 28 gfx::QuadF original( | |
| 29 gfx::RectF(0.01010101f, 0.01010101f, 100.01010101f, 100.01010101f)); | |
| 30 | |
| 31 for (int i = 0; i < kNumRectilinear; ++i) { | |
| 32 bool clipped = false; | |
| 33 gfx::QuadF quad = | |
| 34 MathUtil::MapQuad(rectilinear_trans[i], original, &clipped); | |
| 35 ASSERT_TRUE(!clipped) << "case " << i; | |
| 36 EXPECT_TRUE(quad.IsRectilinear()) << "case " << i; | |
| 37 } | |
| 38 | |
| 39 const int kNumNonRectilinear = 10; | |
| 40 gfx::Transform non_rectilinear_trans[kNumNonRectilinear]; | |
| 41 non_rectilinear_trans[0].Rotate(359.9999f); | |
| 42 non_rectilinear_trans[1].Rotate(0.0000001f); | |
| 43 non_rectilinear_trans[2].Rotate(89.9999f); | |
| 44 non_rectilinear_trans[3].Rotate(90.00001f); | |
| 45 non_rectilinear_trans[4].Rotate(179.9999f); | |
| 46 non_rectilinear_trans[5].Rotate(180.00001f); | |
| 47 non_rectilinear_trans[6].Rotate(269.9999f); | |
| 48 non_rectilinear_trans[7].Rotate(270.0001f); | |
| 49 non_rectilinear_trans[8].SkewX(0.00001f); | |
| 50 non_rectilinear_trans[9].SkewY(0.00001f); | |
| 51 | |
| 52 for (int i = 0; i < kNumNonRectilinear; ++i) { | |
| 53 bool clipped = false; | |
| 54 gfx::QuadF quad = | |
| 55 MathUtil::MapQuad(non_rectilinear_trans[i], original, &clipped); | |
| 56 ASSERT_TRUE(!clipped) << "case " << i; | |
| 57 EXPECT_FALSE(quad.IsRectilinear()) << "case " << i; | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 } // namespace | |
| 62 } // namespace cc | |
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