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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <limits> | 5 #include <limits> |
6 #include <vector> | 6 #include <vector> |
7 | 7 |
8 #include "cc/output/bsp_compare_result.h" | 8 #include "cc/output/bsp_compare_result.h" |
9 #include "cc/quads/draw_polygon.h" | 9 #include "cc/quads/draw_polygon.h" |
10 #include "testing/gtest/include/gtest/gtest.h" | 10 #include "testing/gtest/include/gtest/gtest.h" |
11 #include "ui/gfx/transform.h" | 11 #include "ui/gfx/transform.h" |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 namespace { | 14 namespace { |
15 | 15 |
16 #define CREATE_NEW_DRAW_POLYGON(name, points_vector, normal, polygon_id) \ | 16 #define CREATE_NEW_DRAW_POLYGON(name, points_vector, normal, polygon_id) \ |
17 DrawPolygon name(NULL, points_vector, normal, polygon_id) | 17 DrawPolygon name(NULL, points_vector, normal, polygon_id) |
18 | 18 |
19 #define EXPECT_FLOAT_WITHIN_EPSILON_OF(a, b) \ | 19 #define EXPECT_FLOAT_WITHIN_EPSILON_OF(a, b) \ |
20 EXPECT_TRUE(std::abs(a - b) < std::numeric_limits<float>::epsilon()); | 20 EXPECT_TRUE(std::abs(a - b) < std::numeric_limits<float>::epsilon()); |
21 | 21 |
22 #define EXPECT_POINT_EQ(point_a, point_b) \ | |
23 EXPECT_FLOAT_EQ(point_a.x(), point_b.x()); \ | |
24 EXPECT_FLOAT_EQ(point_a.y(), point_b.y()); \ | |
25 EXPECT_FLOAT_EQ(point_a.z(), point_b.z()); | |
26 | |
27 static void ValidatePoints(const DrawPolygon& polygon, | 22 static void ValidatePoints(const DrawPolygon& polygon, |
28 const std::vector<gfx::Point3F>& points) { | 23 const std::vector<gfx::Point3F>& points) { |
29 EXPECT_EQ(polygon.points().size(), points.size()); | 24 EXPECT_EQ(polygon.points().size(), points.size()); |
30 for (size_t i = 0; i < points.size(); i++) { | 25 for (size_t i = 0; i < points.size(); i++) { |
31 EXPECT_POINT_EQ(polygon.points()[i], points[i]); | 26 EXPECT_EQ(polygon.points()[i], points[i]); |
32 } | 27 } |
33 } | 28 } |
34 | 29 |
35 // Two quads are definitely not touching and so no split should occur. | 30 // Two quads are definitely not touching and so no split should occur. |
36 TEST(DrawPolygonSplitTest, NotTouchingNoSplit) { | 31 TEST(DrawPolygonSplitTest, NotTouchingNoSplit) { |
37 std::vector<gfx::Point3F> vertices_a; | 32 std::vector<gfx::Point3F> vertices_a; |
38 vertices_a.push_back(gfx::Point3F(0.0f, 10.0f, 0.0f)); | 33 vertices_a.push_back(gfx::Point3F(0.0f, 10.0f, 0.0f)); |
39 vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f)); | 34 vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f)); |
40 vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f)); | 35 vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f)); |
41 vertices_a.push_back(gfx::Point3F(10.0f, 10.0f, 0.0f)); | 36 vertices_a.push_back(gfx::Point3F(10.0f, 10.0f, 0.0f)); |
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181 // because some architectures (e.g., Arm64) employ a fused multiply-add | 176 // because some architectures (e.g., Arm64) employ a fused multiply-add |
182 // instruction which causes rounding asymmetry and reduces precision. | 177 // instruction which causes rounding asymmetry and reduces precision. |
183 // http://crbug.com/401117. | 178 // http://crbug.com/401117. |
184 EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().x(), 0); | 179 EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().x(), 0); |
185 EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().y(), 0); | 180 EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().y(), 0); |
186 EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().z(), -1); | 181 EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().z(), -1); |
187 } | 182 } |
188 | 183 |
189 } // namespace | 184 } // namespace |
190 } // namespace cc | 185 } // namespace cc |
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