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// 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/math_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/rect_f.h"
#include "ui/gfx/quad_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 numRectilinear = 8;
gfx::Transform rectilinearTrans[numRectilinear];
rectilinearTrans[1].Rotate(90);
rectilinearTrans[2].Rotate(180);
rectilinearTrans[3].Rotate(270);
rectilinearTrans[4].SkewX(0.00000000001);
rectilinearTrans[5].SkewY(0.00000000001);
rectilinearTrans[6].Scale(0.00001, 0.00001);
rectilinearTrans[6].Rotate(180);
rectilinearTrans[7].Scale(100000, 100000);
rectilinearTrans[7].Rotate(180);
for (int i = 0; i < numRectilinear; ++i) {
bool clipped = false;
gfx::QuadF quad = MathUtil::mapQuad(rectilinearTrans[i], gfx::QuadF(gfx::RectF(0.01010101f, 0.01010101f, 100.01010101f, 100.01010101f)), clipped);
ASSERT_TRUE(!clipped);
EXPECT_TRUE(quad.IsRectilinear());
}
const int numNonRectilinear = 10;
gfx::Transform nonRectilinearTrans[numNonRectilinear];
nonRectilinearTrans[0].Rotate(359.999);
nonRectilinearTrans[1].Rotate(0.0000001);
nonRectilinearTrans[2].Rotate(89.999999);
nonRectilinearTrans[3].Rotate(90.0000001);
nonRectilinearTrans[4].Rotate(179.999999);
nonRectilinearTrans[5].Rotate(180.0000001);
nonRectilinearTrans[6].Rotate(269.999999);
nonRectilinearTrans[7].Rotate(270.0000001);
nonRectilinearTrans[8].SkewX(0.00001);
nonRectilinearTrans[9].SkewY(0.00001);
for (int i = 0; i < numNonRectilinear; ++i) {
bool clipped = false;
gfx::QuadF quad = MathUtil::mapQuad(nonRectilinearTrans[i], gfx::QuadF(gfx::RectF(0.01010101f, 0.01010101f, 100.01010101f, 100.01010101f)), clipped);
ASSERT_TRUE(!clipped);
EXPECT_FALSE(quad.IsRectilinear());
}
}
} // namespace
} // namespace cc
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