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Unified Diff: cc/quads/draw_polygon_unittest.cc

Issue 1533773002: Delete CC. (Closed) Base URL: git@github.com:domokit/mojo.git@cl-2e
Patch Set: rebase Created 5 years ago
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Index: cc/quads/draw_polygon_unittest.cc
diff --git a/cc/quads/draw_polygon_unittest.cc b/cc/quads/draw_polygon_unittest.cc
deleted file mode 100644
index 27cfed43816b02bc64df851c03d4806bf6efe268..0000000000000000000000000000000000000000
--- a/cc/quads/draw_polygon_unittest.cc
+++ /dev/null
@@ -1,190 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <limits>
-#include <vector>
-
-#include "cc/output/bsp_compare_result.h"
-#include "cc/quads/draw_polygon.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/transform.h"
-
-namespace cc {
-namespace {
-
-#define CREATE_NEW_DRAW_POLYGON(name, points_vector, normal, polygon_id) \
- DrawPolygon name(NULL, points_vector, normal, polygon_id)
-
-#define EXPECT_FLOAT_WITHIN_EPSILON_OF(a, b) \
- EXPECT_TRUE(std::abs(a - b) < std::numeric_limits<float>::epsilon());
-
-#define EXPECT_POINT_EQ(point_a, point_b) \
- EXPECT_FLOAT_EQ(point_a.x(), point_b.x()); \
- EXPECT_FLOAT_EQ(point_a.y(), point_b.y()); \
- EXPECT_FLOAT_EQ(point_a.z(), point_b.z());
-
-static void ValidatePoints(const DrawPolygon& polygon,
- const std::vector<gfx::Point3F>& points) {
- EXPECT_EQ(polygon.points().size(), points.size());
- for (size_t i = 0; i < points.size(); i++) {
- EXPECT_POINT_EQ(polygon.points()[i], points[i]);
- }
-}
-
-// Two quads are definitely not touching and so no split should occur.
-TEST(DrawPolygonSplitTest, NotTouchingNoSplit) {
- std::vector<gfx::Point3F> vertices_a;
- vertices_a.push_back(gfx::Point3F(0.0f, 10.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 10.0f, 0.0f));
- std::vector<gfx::Point3F> vertices_b;
- vertices_b.push_back(gfx::Point3F(5.0f, 10.0f, 5.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 0.0f, 15.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 0.0f, 15.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 10.0f, 5.0f));
-
- CREATE_NEW_DRAW_POLYGON(
- polygon_a, vertices_a, gfx::Vector3dF(0.0f, 0.0f, 1.0f), 0);
- CREATE_NEW_DRAW_POLYGON(
- polygon_b, vertices_b, gfx::Vector3dF(-1.0f, 0.0f, 0.0f), 1);
-
- EXPECT_EQ(DrawPolygon::SideCompare(polygon_b, polygon_a), BSP_FRONT);
-}
-
-// One quad is resting against another, but doesn't cross its plane so no split
-// should occur.
-TEST(DrawPolygonSplitTest, BarelyTouchingNoSplit) {
- std::vector<gfx::Point3F> vertices_a;
- vertices_a.push_back(gfx::Point3F(0.0f, 10.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 10.0f, 0.0f));
- std::vector<gfx::Point3F> vertices_b;
- vertices_b.push_back(gfx::Point3F(5.0f, 10.0f, 0.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 0.0f, -10.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 0.0f, -10.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 10.0f, 0.0f));
-
- CREATE_NEW_DRAW_POLYGON(
- polygon_a, vertices_a, gfx::Vector3dF(0.0f, 0.0f, 1.0f), 0);
- CREATE_NEW_DRAW_POLYGON(
- polygon_b, vertices_b, gfx::Vector3dF(-1.0f, 0.0f, 0.0f), 1);
-
- EXPECT_EQ(DrawPolygon::SideCompare(polygon_b, polygon_a), BSP_BACK);
-}
-
-// One quad intersects another and becomes two pieces.
-TEST(DrawPolygonSplitTest, BasicSplit) {
- std::vector<gfx::Point3F> vertices_a;
- vertices_a.push_back(gfx::Point3F(0.0f, 10.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 10.0f, 0.0f));
- std::vector<gfx::Point3F> vertices_b;
- vertices_b.push_back(gfx::Point3F(5.0f, 10.0f, -5.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 0.0f, -5.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 0.0f, 5.0f));
- vertices_b.push_back(gfx::Point3F(5.0f, 10.0f, 5.0f));
-
- CREATE_NEW_DRAW_POLYGON(
- polygon_a, vertices_a, gfx::Vector3dF(0.0f, 0.0f, 1.0f), 0);
- CREATE_NEW_DRAW_POLYGON(
- polygon_b, vertices_b, gfx::Vector3dF(-1.0f, 0.0f, 0.0f), 1);
-
- EXPECT_EQ(DrawPolygon::SideCompare(polygon_b, polygon_a), BSP_SPLIT);
-
- scoped_ptr<DrawPolygon> front_polygon;
- scoped_ptr<DrawPolygon> back_polygon;
- polygon_b.Split(polygon_a, &front_polygon, &back_polygon);
- EXPECT_EQ(DrawPolygon::SideCompare(*front_polygon, polygon_a), BSP_FRONT);
- EXPECT_EQ(DrawPolygon::SideCompare(*back_polygon, polygon_a), BSP_BACK);
-
- std::vector<gfx::Point3F> test_points_a;
- test_points_a.push_back(gfx::Point3F(5.0f, 0.0f, 0.0f));
- test_points_a.push_back(gfx::Point3F(5.0f, 0.0f, 5.0f));
- test_points_a.push_back(gfx::Point3F(5.0f, 10.0f, 5.0f));
- test_points_a.push_back(gfx::Point3F(5.0f, 10.0f, 0.0f));
- std::vector<gfx::Point3F> test_points_b;
- test_points_b.push_back(gfx::Point3F(5.0f, 10.0f, 0.0f));
- test_points_b.push_back(gfx::Point3F(5.0f, 10.0f, -5.0f));
- test_points_b.push_back(gfx::Point3F(5.0f, 0.0f, -5.0f));
- test_points_b.push_back(gfx::Point3F(5.0f, 0.0f, 0.0f));
- ValidatePoints(*(front_polygon.get()), test_points_a);
- ValidatePoints(*(back_polygon.get()), test_points_b);
-
- EXPECT_EQ(front_polygon->points().size(), 4u);
- EXPECT_EQ(back_polygon->points().size(), 4u);
-}
-
-// In this test we cut the corner of a quad so that it creates a triangle and
-// a pentagon as a result.
-TEST(DrawPolygonSplitTest, AngledSplit) {
- std::vector<gfx::Point3F> vertices_a;
- vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f));
- vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 10.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 10.0f));
- vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f));
- std::vector<gfx::Point3F> vertices_b;
- vertices_b.push_back(gfx::Point3F(2.0f, 5.0f, 1.0f));
- vertices_b.push_back(gfx::Point3F(2.0f, -5.0f, 1.0f));
- vertices_b.push_back(gfx::Point3F(-1.0f, -5.0f, -2.0f));
- vertices_b.push_back(gfx::Point3F(-1.0f, 5.0f, -2.0f));
-
- CREATE_NEW_DRAW_POLYGON(
- polygon_a, vertices_a, gfx::Vector3dF(0.0f, 1.0f, 0.0f), 0);
- CREATE_NEW_DRAW_POLYGON(
- polygon_b, vertices_b, gfx::Vector3dF(0.707107f, 0.0f, -0.707107f), 1);
-
- EXPECT_EQ(DrawPolygon::SideCompare(polygon_a, polygon_b), BSP_SPLIT);
-
- scoped_ptr<DrawPolygon> front_polygon;
- scoped_ptr<DrawPolygon> back_polygon;
- polygon_a.Split(polygon_b, &front_polygon, &back_polygon);
- EXPECT_EQ(DrawPolygon::SideCompare(*front_polygon, polygon_b), BSP_FRONT);
- EXPECT_EQ(DrawPolygon::SideCompare(*back_polygon, polygon_b), BSP_BACK);
-
- EXPECT_EQ(front_polygon->points().size(), 3u);
- EXPECT_EQ(back_polygon->points().size(), 5u);
-
- std::vector<gfx::Point3F> test_points_a;
- test_points_a.push_back(gfx::Point3F(10.0f, 0.0f, 9.0f));
- test_points_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f));
- test_points_a.push_back(gfx::Point3F(1.0f, 0.0f, 0.0f));
- std::vector<gfx::Point3F> test_points_b;
- test_points_b.push_back(gfx::Point3F(1.0f, 0.0f, 0.0f));
- test_points_b.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f));
- test_points_b.push_back(gfx::Point3F(0.0f, 0.0f, 10.0f));
- test_points_b.push_back(gfx::Point3F(10.0f, 0.0f, 10.0f));
- test_points_b.push_back(gfx::Point3F(10.0f, 0.0f, 9.0f));
-
- ValidatePoints(*(front_polygon.get()), test_points_a);
- ValidatePoints(*(back_polygon.get()), test_points_b);
-}
-
-TEST(DrawPolygonTransformTest, TransformNormal) {
- // We give this polygon no actual vertices because we're not interested
- // in actually transforming any points, just the normal.
- std::vector<gfx::Point3F> vertices_a;
- CREATE_NEW_DRAW_POLYGON(
- polygon_a, vertices_a, gfx::Vector3dF(0.707107f, 0.0f, -0.707107f), 0);
-
- gfx::Transform transform;
- transform.RotateAboutYAxis(45.0);
- // This would transform the vertices as well, but we are transforming a
- // DrawPolygon with 0 vertices just to make sure our normal transformation
- // using the inverse tranpose matrix gives us the right result.
- polygon_a.TransformToScreenSpace(transform);
-
- // Note: We use EXPECT_FLOAT_WITHIN_EPSILON instead of EXPECT_FLOAT_EQUAL here
- // because some architectures (e.g., Arm64) employ a fused multiply-add
- // instruction which causes rounding asymmetry and reduces precision.
- // http://crbug.com/401117.
- EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().x(), 0);
- EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().y(), 0);
- EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().z(), -1);
-}
-
-} // namespace
-} // namespace cc
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