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1 /*
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2 ---------------------------------------------------------------------------
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3 Open Asset Import Library (assimp)
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4 ---------------------------------------------------------------------------
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5
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6 Copyright (c) 2006-2018, assimp team
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7
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8
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9
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10 All rights reserved.
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11
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12 Redistribution and use of this software in source and binary forms,
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13 with or without modification, are permitted provided that the following
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14 conditions are met:
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15
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16 * Redistributions of source code must retain the above
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17 copyright notice, this list of conditions and the
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18 following disclaimer.
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19
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20 * Redistributions in binary form must reproduce the above
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21 copyright notice, this list of conditions and the
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22 following disclaimer in the documentation and/or other
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23 materials provided with the distribution.
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24
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25 * Neither the name of the assimp team, nor the names of its
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26 contributors may be used to endorse or promote products
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27 derived from this software without specific prior
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28 written permission of the assimp team.
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29
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30 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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31 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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32 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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33 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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34 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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35 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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36 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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37 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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38 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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39 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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40 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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41 ---------------------------------------------------------------------------
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42 */
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43 /** @file color4.h
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44 * @brief RGBA color structure, including operators when compiling in C++
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45 */
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46 #pragma once
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47 #ifndef AI_COLOR4D_H_INC
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48 #define AI_COLOR4D_H_INC
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49
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50 #include "defs.h"
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51
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52 #ifdef __cplusplus
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53
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54 // ----------------------------------------------------------------------------------
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55 /** Represents a color in Red-Green-Blue space including an
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56 * alpha component. Color values range from 0 to 1. */
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57 // ----------------------------------------------------------------------------------
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58 template <typename TReal>
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59 class aiColor4t
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60 {
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61 public:
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62 aiColor4t() AI_NO_EXCEPT : r(), g(), b(), a() {}
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63 aiColor4t (TReal _r, TReal _g, TReal _b, TReal _a)
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64 : r(_r), g(_g), b(_b), a(_a) {}
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65 explicit aiColor4t (TReal _r) : r(_r), g(_r), b(_r), a(_r) {}
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66
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67 public:
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68 // combined operators
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69 const aiColor4t& operator += (const aiColor4t& o);
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70 const aiColor4t& operator -= (const aiColor4t& o);
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71 const aiColor4t& operator *= (TReal f);
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72 const aiColor4t& operator /= (TReal f);
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73
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74 public:
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75 // comparison
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76 bool operator == (const aiColor4t& other) const;
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77 bool operator != (const aiColor4t& other) const;
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78 bool operator < (const aiColor4t& other) const;
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79
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80 // color tuple access, rgba order
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81 inline TReal operator[](unsigned int i) const;
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82 inline TReal& operator[](unsigned int i);
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83
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84 /** check whether a color is (close to) black */
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85 inline bool IsBlack() const;
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86
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87 public:
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88
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89 // Red, green, blue and alpha color values
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90 TReal r, g, b, a;
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91 }; // !struct aiColor4D
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92
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93 typedef aiColor4t<ai_real> aiColor4D;
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94
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95 #else
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96
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97 struct aiColor4D {
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98 ai_real r, g, b, a;
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99 };
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100
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101 #endif // __cplusplus
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102
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103 #endif // AI_COLOR4D_H_INC
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