/src/freeimage-svn/FreeImage/trunk/Source/OpenEXR/IlmImf/ImfRgba.h
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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 |
24 | | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
25 | | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
26 | | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
27 | | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 | 0 | Rgba () {} |
63 | 0 | 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 | 0 | { |
67 | 0 | r = other.r; |
68 | 0 | g = other.g; |
69 | 0 | b = other.b; |
70 | 0 | a = other.a; |
71 | |
|
72 | 0 | return *this; |
73 | 0 | } |
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 |