| // Copyright 2011 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 "cc/base/math_util.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "ui/gfx/quad_f.h" |
| #include "ui/gfx/rect_f.h" |
| #include "ui/gfx/transform.h" |
| |
| namespace cc { |
| namespace { |
| |
| // TODO(danakj) Move this test to ui/gfx/ when we don't need MathUtil::MapQuad. |
| TEST(FloatQuadTest, IsRectilinearTest) { |
| const int kNumRectilinear = 8; |
| gfx::Transform rectilinear_trans[kNumRectilinear]; |
| rectilinear_trans[1].Rotate(90.0); |
| rectilinear_trans[2].Rotate(180.0); |
| rectilinear_trans[3].Rotate(270.0); |
| rectilinear_trans[4].SkewX(0.00000000001); |
| rectilinear_trans[5].SkewY(0.00000000001); |
| rectilinear_trans[6].Scale(0.00001, 0.00001); |
| rectilinear_trans[6].Rotate(180.0); |
| rectilinear_trans[7].Scale(100000, 100000); |
| rectilinear_trans[7].Rotate(180.0); |
| |
| gfx::QuadF original( |
| gfx::RectF(0.01010101f, 0.01010101f, 100.01010101f, 100.01010101f)); |
| |
| for (int i = 0; i < kNumRectilinear; ++i) { |
| bool clipped = false; |
| gfx::QuadF quad = |
| MathUtil::MapQuad(rectilinear_trans[i], original, &clipped); |
| ASSERT_TRUE(!clipped) << "case " << i; |
| EXPECT_TRUE(quad.IsRectilinear()) << "case " << i; |
| } |
| |
| const int kNumNonRectilinear = 10; |
| gfx::Transform non_rectilinear_trans[kNumNonRectilinear]; |
| non_rectilinear_trans[0].Rotate(359.999); |
| non_rectilinear_trans[1].Rotate(0.0000001); |
| non_rectilinear_trans[2].Rotate(89.999999); |
| non_rectilinear_trans[3].Rotate(90.0000001); |
| non_rectilinear_trans[4].Rotate(179.999999); |
| non_rectilinear_trans[5].Rotate(180.0000001); |
| non_rectilinear_trans[6].Rotate(269.999999); |
| non_rectilinear_trans[7].Rotate(270.0000001); |
| non_rectilinear_trans[8].SkewX(0.00001); |
| non_rectilinear_trans[9].SkewY(0.00001); |
| |
| for (int i = 0; i < kNumNonRectilinear; ++i) { |
| bool clipped = false; |
| gfx::QuadF quad = |
| MathUtil::MapQuad(non_rectilinear_trans[i], original, &clipped); |
| ASSERT_TRUE(!clipped) << "case " << i; |
| EXPECT_FALSE(quad.IsRectilinear()) << "case " << i; |
| } |
| } |
| |
| } // namespace |
| } // namespace cc |