/src/dng_sdk/source/dng_tone_curve.cpp
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1 | | /*****************************************************************************/ |
2 | | // Copyright 2007 Adobe Systems Incorporated |
3 | | // All Rights Reserved. |
4 | | // |
5 | | // NOTICE: Adobe permits you to use, modify, and distribute this file in |
6 | | // accordance with the terms of the Adobe license agreement accompanying it. |
7 | | /*****************************************************************************/ |
8 | | |
9 | | /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_tone_curve.cpp#1 $ */ |
10 | | /* $DateTime: 2012/05/30 13:28:51 $ */ |
11 | | /* $Change: 832332 $ */ |
12 | | /* $Author: tknoll $ */ |
13 | | |
14 | | /*****************************************************************************/ |
15 | | |
16 | | #include "dng_tone_curve.h" |
17 | | |
18 | | #include "dng_assertions.h" |
19 | | #include "dng_spline.h" |
20 | | #include "dng_utils.h" |
21 | | |
22 | | /******************************************************************************/ |
23 | | |
24 | | dng_tone_curve::dng_tone_curve () |
25 | | |
26 | 263k | : fCoord () |
27 | | |
28 | 263k | { |
29 | | |
30 | 263k | SetNull (); |
31 | | |
32 | 263k | } |
33 | | |
34 | | /******************************************************************************/ |
35 | | |
36 | | bool dng_tone_curve::operator== (const dng_tone_curve &curve) const |
37 | 3.51M | { |
38 | | |
39 | 3.51M | return fCoord == curve.fCoord; |
40 | | |
41 | 3.51M | } |
42 | | |
43 | | /******************************************************************************/ |
44 | | |
45 | | void dng_tone_curve::SetNull () |
46 | 263k | { |
47 | | |
48 | 263k | fCoord.resize (2); |
49 | | |
50 | 263k | fCoord [0].h = 0.0; |
51 | 263k | fCoord [0].v = 0.0; |
52 | | |
53 | 263k | fCoord [1].h = 1.0; |
54 | 263k | fCoord [1].v = 1.0; |
55 | | |
56 | 263k | } |
57 | | |
58 | | /******************************************************************************/ |
59 | | |
60 | | bool dng_tone_curve::IsNull () const |
61 | 0 | { |
62 | | |
63 | 0 | dng_tone_curve temp; |
64 | | |
65 | 0 | return (*this == temp); |
66 | | |
67 | 0 | } |
68 | | |
69 | | /******************************************************************************/ |
70 | | |
71 | | void dng_tone_curve::SetInvalid () |
72 | 263k | { |
73 | | |
74 | 263k | fCoord.clear (); |
75 | | |
76 | 263k | } |
77 | | |
78 | | /******************************************************************************/ |
79 | | |
80 | | bool dng_tone_curve::IsValid () const |
81 | 70.5k | { |
82 | | |
83 | 70.5k | if (fCoord.size () < 2) |
84 | 8.40k | { |
85 | | |
86 | 8.40k | return false; |
87 | | |
88 | 8.40k | } |
89 | | |
90 | 125k | for (uint32 j = 0; j < fCoord.size (); j++) |
91 | 111k | { |
92 | | |
93 | 111k | if (fCoord [j] . h < 0.0 || fCoord [j] . h > 1.0 || |
94 | 95.5k | fCoord [j] . v < 0.0 || fCoord [j] . v > 1.0) |
95 | 45.8k | { |
96 | | |
97 | 45.8k | return false; |
98 | | |
99 | 45.8k | } |
100 | | |
101 | 65.2k | if (j > 0) |
102 | 25.7k | { |
103 | | |
104 | 25.7k | if (fCoord [j] . h <= fCoord [j - 1] . h) |
105 | 2.12k | { |
106 | | |
107 | 2.12k | return false; |
108 | | |
109 | 2.12k | } |
110 | | |
111 | 25.7k | } |
112 | | |
113 | 65.2k | } |
114 | | |
115 | 14.2k | return true; |
116 | | |
117 | 62.1k | } |
118 | | |
119 | | /******************************************************************************/ |
120 | | |
121 | | void dng_tone_curve::Solve (dng_spline_solver &solver) const |
122 | 60 | { |
123 | | |
124 | 60 | solver.Reset (); |
125 | | |
126 | 304 | for (uint32 index = 0; index < fCoord.size (); index++) |
127 | 244 | { |
128 | | |
129 | 244 | solver.Add (fCoord [index].h, |
130 | 244 | fCoord [index].v); |
131 | | |
132 | 244 | } |
133 | | |
134 | 60 | solver.Solve (); |
135 | | |
136 | 60 | } |
137 | | |
138 | | /*****************************************************************************/ |