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 | : fCoord () |
27 | |
28 | { |
29 | |
30 | SetNull (); |
31 | |
32 | } |
33 | |
34 | /******************************************************************************/ |
35 | |
36 | bool dng_tone_curve::operator== (const dng_tone_curve &curve) const |
37 | { |
38 | |
39 | return fCoord == curve.fCoord; |
40 | |
41 | } |
42 | |
43 | /******************************************************************************/ |
44 | |
45 | void dng_tone_curve::SetNull () |
46 | { |
47 | |
48 | fCoord.resize (2); |
49 | |
50 | fCoord [0].h = 0.0; |
51 | fCoord [0].v = 0.0; |
52 | |
53 | fCoord [1].h = 1.0; |
54 | fCoord [1].v = 1.0; |
55 | |
56 | } |
57 | |
58 | /******************************************************************************/ |
59 | |
60 | bool dng_tone_curve::IsNull () const |
61 | { |
62 | |
63 | dng_tone_curve temp; |
64 | |
65 | return (*this == temp); |
66 | |
67 | } |
68 | |
69 | /******************************************************************************/ |
70 | |
71 | void dng_tone_curve::SetInvalid () |
72 | { |
73 | |
74 | fCoord.clear (); |
75 | |
76 | } |
77 | |
78 | /******************************************************************************/ |
79 | |
80 | bool dng_tone_curve::IsValid () const |
81 | { |
82 | |
83 | if (fCoord.size () < 2) |
84 | { |
85 | |
86 | return false; |
87 | |
88 | } |
89 | |
90 | for (uint32 j = 0; j < fCoord.size (); j++) |
91 | { |
92 | |
93 | if (fCoord [j] . h < 0.0 || fCoord [j] . h > 1.0 || |
94 | fCoord [j] . v < 0.0 || fCoord [j] . v > 1.0) |
95 | { |
96 | |
97 | return false; |
98 | |
99 | } |
100 | |
101 | if (j > 0) |
102 | { |
103 | |
104 | if (fCoord [j] . h <= fCoord [j - 1] . h) |
105 | { |
106 | |
107 | return false; |
108 | |
109 | } |
110 | |
111 | } |
112 | |
113 | } |
114 | |
115 | return true; |
116 | |
117 | } |
118 | |
119 | /******************************************************************************/ |
120 | |
121 | void dng_tone_curve::Solve (dng_spline_solver &solver) const |
122 | { |
123 | |
124 | solver.Reset (); |
125 | |
126 | for (uint32 index = 0; index < fCoord.size (); index++) |
127 | { |
128 | |
129 | solver.Add (fCoord [index].h, |
130 | fCoord [index].v); |
131 | |
132 | } |
133 | |
134 | solver.Solve (); |
135 | |
136 | } |
137 | |
138 | /*****************************************************************************/ |
139 | |