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1 /* | 1 /* |
2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. |
3 * Copyright (C) 2005 Nokia. All rights reserved. | 3 * Copyright (C) 2005 Nokia. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
13 * | 13 * |
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #include "platform/geometry/FloatPoint.h" | 27 #include "platform/geometry/FloatPoint.h" |
28 | 28 |
29 #include "SkPoint.h" | 29 #include "SkPoint.h" |
30 #include "platform/FloatConversion.h" | |
31 #include "platform/geometry/DoublePoint.h" | 30 #include "platform/geometry/DoublePoint.h" |
32 #include "platform/geometry/LayoutPoint.h" | 31 #include "platform/geometry/LayoutPoint.h" |
33 #include "platform/geometry/LayoutSize.h" | 32 #include "platform/geometry/LayoutSize.h" |
| 33 #include "wtf/MathExtras.h" |
34 #include "wtf/text/WTFString.h" | 34 #include "wtf/text/WTFString.h" |
35 #include <limits> | 35 #include <limits> |
36 #include <math.h> | 36 #include <math.h> |
37 | 37 |
38 namespace blink { | 38 namespace blink { |
39 | 39 |
40 // Skia has problems when passed infinite, etc floats, filter them to 0. | 40 // Skia has problems when passed infinite, etc floats, filter them to 0. |
41 static inline SkScalar WebCoreFloatToSkScalar(float f) | 41 static inline SkScalar WebCoreFloatToSkScalar(float f) |
42 { | 42 { |
43 return SkFloatToScalar(std::isfinite(f) ? f : 0); | 43 return SkFloatToScalar(std::isfinite(f) ? f : 0); |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
85 } | 85 } |
86 | 86 |
87 SkPoint FloatPoint::data() const | 87 SkPoint FloatPoint::data() const |
88 { | 88 { |
89 SkPoint p = { WebCoreFloatToSkScalar(m_x), WebCoreFloatToSkScalar(m_y) }; | 89 SkPoint p = { WebCoreFloatToSkScalar(m_x), WebCoreFloatToSkScalar(m_y) }; |
90 return p; | 90 return p; |
91 } | 91 } |
92 | 92 |
93 FloatPoint FloatPoint::narrowPrecision(double x, double y) | 93 FloatPoint FloatPoint::narrowPrecision(double x, double y) |
94 { | 94 { |
95 return FloatPoint(narrowPrecisionToFloat(x), narrowPrecisionToFloat(y)); | 95 return FloatPoint(clampTo<float>(x), clampTo<float>(y)); |
96 } | 96 } |
97 | 97 |
98 bool findIntersection(const FloatPoint& p1, const FloatPoint& p2, const FloatPoi
nt& d1, const FloatPoint& d2, FloatPoint& intersection) | 98 bool findIntersection(const FloatPoint& p1, const FloatPoint& p2, const FloatPoi
nt& d1, const FloatPoint& d2, FloatPoint& intersection) |
99 { | 99 { |
100 float pxLength = p2.x() - p1.x(); | 100 float pxLength = p2.x() - p1.x(); |
101 float pyLength = p2.y() - p1.y(); | 101 float pyLength = p2.y() - p1.y(); |
102 | 102 |
103 float dxLength = d2.x() - d1.x(); | 103 float dxLength = d2.x() - d1.x(); |
104 float dyLength = d2.y() - d1.y(); | 104 float dyLength = d2.y() - d1.y(); |
105 | 105 |
106 float denom = pxLength * dyLength - pyLength * dxLength; | 106 float denom = pxLength * dyLength - pyLength * dxLength; |
107 if (!denom) | 107 if (!denom) |
108 return false; | 108 return false; |
109 | 109 |
110 float param = ((d1.x() - p1.x()) * dyLength - (d1.y() - p1.y()) * dxLength)
/ denom; | 110 float param = ((d1.x() - p1.x()) * dyLength - (d1.y() - p1.y()) * dxLength)
/ denom; |
111 | 111 |
112 intersection.setX(p1.x() + param * pxLength); | 112 intersection.setX(p1.x() + param * pxLength); |
113 intersection.setY(p1.y() + param * pyLength); | 113 intersection.setY(p1.y() + param * pyLength); |
114 return true; | 114 return true; |
115 } | 115 } |
116 | 116 |
117 String FloatPoint::toString() const | 117 String FloatPoint::toString() const |
118 { | 118 { |
119 return String::format("%lg,%lg", x(), y()); | 119 return String::format("%lg,%lg", x(), y()); |
120 } | 120 } |
121 | 121 |
122 } // namespace blink | 122 } // namespace blink |
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