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1 /* | 1 /* |
2 * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> | 2 * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> |
3 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> | 3 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
4 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> | 4 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
5 * Copyright (C) 2005 Eric Seidel <eric@webkit.org> | 5 * Copyright (C) 2005 Eric Seidel <eric@webkit.org> |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
11 * | 11 * |
12 * This library is distributed in the hope that it will be useful, | 12 * This library is distributed in the hope that it will be useful, |
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 * Library General Public License for more details. | 15 * Library General Public License for more details. |
16 * | 16 * |
17 * You should have received a copy of the GNU Library General Public License | 17 * You should have received a copy of the GNU Library General Public License |
18 * along with this library; see the file COPYING.LIB. If not, write to | 18 * along with this library; see the file COPYING.LIB. If not, write to |
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 * Boston, MA 02110-1301, USA. | 20 * Boston, MA 02110-1301, USA. |
21 */ | 21 */ |
22 | 22 |
23 #ifndef SpotLightSource_h | 23 #ifndef SpotLightSource_h |
24 #define SpotLightSource_h | 24 #define SpotLightSource_h |
25 | 25 |
26 #include "platform/graphics/filters/LightSource.h" | 26 #include "platform/graphics/filters/LightSource.h" |
27 #include <algorithm> | 27 #include "wtf/MathExtras.h" |
28 | 28 |
29 namespace blink { | 29 namespace blink { |
30 | 30 |
31 class PLATFORM_EXPORT SpotLightSource final : public LightSource { | 31 class PLATFORM_EXPORT SpotLightSource final : public LightSource { |
32 public: | 32 public: |
33 static PassRefPtr<SpotLightSource> create(const FloatPoint3D& position, | 33 static PassRefPtr<SpotLightSource> create(const FloatPoint3D& position, |
34 const FloatPoint3D& direction, float specularExponent, float limitingCon
eAngle) | 34 const FloatPoint3D& direction, float specularExponent, float limitingCon
eAngle) |
35 { | 35 { |
36 return adoptRef(new SpotLightSource(position, direction, specularExponen
t, limitingConeAngle)); | 36 return adoptRef(new SpotLightSource(position, direction, specularExponen
t, limitingConeAngle)); |
37 } | 37 } |
(...skipping 10 matching lines...) Expand all Loading... |
48 bool setLimitingConeAngle(float) override; | 48 bool setLimitingConeAngle(float) override; |
49 | 49 |
50 TextStream& externalRepresentation(TextStream&) const override; | 50 TextStream& externalRepresentation(TextStream&) const override; |
51 | 51 |
52 private: | 52 private: |
53 SpotLightSource(const FloatPoint3D& position, const FloatPoint3D& direction, | 53 SpotLightSource(const FloatPoint3D& position, const FloatPoint3D& direction, |
54 float specularExponent, float limitingConeAngle) | 54 float specularExponent, float limitingConeAngle) |
55 : LightSource(LS_SPOT) | 55 : LightSource(LS_SPOT) |
56 , m_position(position) | 56 , m_position(position) |
57 , m_direction(direction) | 57 , m_direction(direction) |
58 , m_specularExponent(std::min(std::max(specularExponent, 1.0f), 128.0f)) | 58 , m_specularExponent(clampTo(specularExponent, 1.0f, 128.0f)) |
59 , m_limitingConeAngle(limitingConeAngle) | 59 , m_limitingConeAngle(limitingConeAngle) |
60 { | 60 { |
61 } | 61 } |
62 | 62 |
63 FloatPoint3D m_position; | 63 FloatPoint3D m_position; |
64 FloatPoint3D m_direction; | 64 FloatPoint3D m_direction; |
65 | 65 |
66 float m_specularExponent; | 66 float m_specularExponent; |
67 float m_limitingConeAngle; | 67 float m_limitingConeAngle; |
68 }; | 68 }; |
69 | 69 |
70 } // namespace blink | 70 } // namespace blink |
71 | 71 |
72 #endif // SpotLightSource_h | 72 #endif // SpotLightSource_h |
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