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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 Apple Inc. All rights reserved. |
3 * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies) | 3 * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies) |
4 * Copyright (C) 2013 Xidorn Quan (quanxunzhen@gmail.com) | 4 * Copyright (C) 2013 Xidorn Quan (quanxunzhen@gmail.com) |
5 * | 5 * |
6 * Redistribution and use in source and binary forms, with or without | 6 * Redistribution and use in source and binary forms, with or without |
7 * modification, are permitted provided that the following conditions | 7 * modification, are permitted provided that the following conditions |
8 * are met: | 8 * are met: |
9 * | 9 * |
10 * 1. Redistributions of source code must retain the above copyright | 10 * 1. Redistributions of source code must retain the above copyright |
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22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | 22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "core/platform/graphics/FloatQuad.h" | 32 #include "platform/geometry/FloatQuad.h" |
33 | 33 |
34 #include <algorithm> | 34 #include <algorithm> |
35 #include <limits> | 35 #include <limits> |
36 | 36 |
37 using namespace std; | 37 using namespace std; |
38 | 38 |
39 namespace WebCore { | 39 namespace WebCore { |
40 | 40 |
41 static inline float min4(float a, float b, float c, float d) | 41 static inline float min4(float a, float b, float c, float d) |
42 { | 42 { |
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227 | 227 |
228 } | 228 } |
229 | 229 |
230 bool FloatQuad::isCounterclockwise() const | 230 bool FloatQuad::isCounterclockwise() const |
231 { | 231 { |
232 // Return if the two first vectors are turning clockwise. If the quad is con
vex then all following vectors will turn the same way. | 232 // Return if the two first vectors are turning clockwise. If the quad is con
vex then all following vectors will turn the same way. |
233 return determinant(m_p2 - m_p1, m_p3 - m_p2) < 0; | 233 return determinant(m_p2 - m_p1, m_p3 - m_p2) < 0; |
234 } | 234 } |
235 | 235 |
236 } // namespace WebCore | 236 } // namespace WebCore |
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