1 | /////////////////////////////////////////////////////////////////////////// |
2 | // |
3 | // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas |
4 | // Digital Ltd. LLC |
5 | // |
6 | // All rights reserved. |
7 | // |
8 | // Redistribution and use in source and binary forms, with or without |
9 | // modification, are permitted provided that the following conditions are |
10 | // met: |
11 | // * Redistributions of source code must retain the above copyright |
12 | // notice, this list of conditions and the following disclaimer. |
13 | // * Redistributions in binary form must reproduce the above |
14 | // copyright notice, this list of conditions and the following disclaimer |
15 | // in the documentation and/or other materials provided with the |
16 | // distribution. |
17 | // * Neither the name of Industrial Light & Magic nor the names of |
18 | // its contributors may be used to endorse or promote products derived |
19 | // from this software without specific prior written permission. |
20 | // |
21 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
22 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
23 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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28 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
29 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
30 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
31 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
32 | // |
33 | /////////////////////////////////////////////////////////////////////////// |
34 | |
35 | |
36 | #ifndef INCLUDED_IMF_RGBA_H |
37 | #define INCLUDED_IMF_RGBA_H |
38 | |
39 | //----------------------------------------------------------------------------- |
40 | // |
41 | // class Rgba |
42 | // |
43 | //----------------------------------------------------------------------------- |
44 | |
45 | #include "half.h" |
46 | #include "ImfNamespace.h" |
47 | |
48 | OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER |
49 | |
50 | |
51 | // |
52 | // RGBA pixel |
53 | // |
54 | |
55 | struct Rgba |
56 | { |
57 | half r; |
58 | half g; |
59 | half b; |
60 | half a; |
61 | |
62 | Rgba () {} |
63 | Rgba (half r, half g, half b, half a = 1.f): r (r), g (g), b (b), a (a) {} |
64 | |
65 | Rgba & operator = (const Rgba &other) |
66 | { |
67 | r = other.r; |
68 | g = other.g; |
69 | b = other.b; |
70 | a = other.a; |
71 | |
72 | return *this; |
73 | } |
74 | }; |
75 | |
76 | |
77 | // |
78 | // Channels in an RGBA file |
79 | // |
80 | |
81 | enum RgbaChannels |
82 | { |
83 | WRITE_R = 0x01, // Red |
84 | WRITE_G = 0x02, // Green |
85 | WRITE_B = 0x04, // Blue |
86 | WRITE_A = 0x08, // Alpha |
87 | |
88 | WRITE_Y = 0x10, // Luminance, for black-and-white images, |
89 | // or in combination with chroma |
90 | |
91 | WRITE_C = 0x20, // Chroma (two subsampled channels, RY and BY, |
92 | // supported only for scanline-based files) |
93 | |
94 | WRITE_RGB = 0x07, // Red, green, blue |
95 | WRITE_RGBA = 0x0f, // Red, green, blue, alpha |
96 | |
97 | WRITE_YC = 0x30, // Luminance, chroma |
98 | WRITE_YA = 0x18, // Luminance, alpha |
99 | WRITE_YCA = 0x38 // Luminance, chroma, alpha |
100 | }; |
101 | |
102 | |
103 | OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT |
104 | |
105 | |
106 | |
107 | |
108 | |
109 | #endif |
110 | |