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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include <cmath> | |
6 #include <limits> | |
7 | |
8 namespace gfx { | |
9 | |
10 int ClampToInt(float value) { | |
sky
2012/09/27 20:33:55
Do we really need all this? Are we really passing
| |
11 if (value != value) | |
12 return 0; // no int NaN. | |
13 if (value > std::numeric_limits<int>::max()) | |
14 return std::numeric_limits<int>::max(); | |
15 if (value < std::numeric_limits<int>::min()) | |
16 return std::numeric_limits<int>::max(); | |
17 return static_cast<int>(value); | |
18 } | |
19 | |
20 int ToFlooredInt(float value) { | |
21 return ClampToInt(std::floor(value)); | |
22 } | |
23 | |
24 int ToCeiledInt(float value) { | |
25 return ClampToInt(std::ceil(value)); | |
26 } | |
27 | |
28 } // namespace gfx | |
29 | |
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