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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 "cc/base/math_util.h" | 5 #include "cc/base/math_util.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <cmath> | 8 #include <cmath> |
9 #include <limits> | 9 #include <limits> |
10 | 10 |
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501 } | 501 } |
502 | 502 |
503 gfx::Vector2dF MathUtil::ProjectVector(const gfx::Vector2dF& source, | 503 gfx::Vector2dF MathUtil::ProjectVector(const gfx::Vector2dF& source, |
504 const gfx::Vector2dF& destination) { | 504 const gfx::Vector2dF& destination) { |
505 float projected_length = | 505 float projected_length = |
506 gfx::DotProduct(source, destination) / destination.LengthSquared(); | 506 gfx::DotProduct(source, destination) / destination.LengthSquared(); |
507 return gfx::Vector2dF(projected_length * destination.x(), | 507 return gfx::Vector2dF(projected_length * destination.x(), |
508 projected_length * destination.y()); | 508 projected_length * destination.y()); |
509 } | 509 } |
510 | 510 |
511 scoped_ptr<base::Value> MathUtil::AsValue(gfx::Size s) { | 511 scoped_ptr<base::Value> MathUtil::AsValue(const gfx::Size& s) { |
512 scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue()); | 512 scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue()); |
513 res->SetDouble("width", s.width()); | 513 res->SetDouble("width", s.width()); |
514 res->SetDouble("height", s.height()); | 514 res->SetDouble("height", s.height()); |
515 return res.PassAs<base::Value>(); | 515 return res.PassAs<base::Value>(); |
516 } | 516 } |
517 | 517 |
518 scoped_ptr<base::Value> MathUtil::AsValue(const gfx::SizeF& s) { | 518 scoped_ptr<base::Value> MathUtil::AsValue(const gfx::SizeF& s) { |
519 scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue()); | 519 scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue()); |
520 res->SetDouble("width", s.width()); | 520 res->SetDouble("width", s.width()); |
521 res->SetDouble("height", s.height()); | 521 res->SetDouble("height", s.height()); |
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606 return scoped_ptr<base::Value>(base::Value::CreateDoubleValue( | 606 return scoped_ptr<base::Value>(base::Value::CreateDoubleValue( |
607 std::min(value, std::numeric_limits<double>::max()))); | 607 std::min(value, std::numeric_limits<double>::max()))); |
608 } | 608 } |
609 | 609 |
610 scoped_ptr<base::Value> MathUtil::AsValueSafely(float value) { | 610 scoped_ptr<base::Value> MathUtil::AsValueSafely(float value) { |
611 return scoped_ptr<base::Value>(base::Value::CreateDoubleValue( | 611 return scoped_ptr<base::Value>(base::Value::CreateDoubleValue( |
612 std::min(value, std::numeric_limits<float>::max()))); | 612 std::min(value, std::numeric_limits<float>::max()))); |
613 } | 613 } |
614 | 614 |
615 } // namespace cc | 615 } // namespace cc |
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