1//
2// SPDX-License-Identifier: BSD-3-Clause
3// Copyright (c) Contributors to the OpenEXR Project.
4//
5
6#ifndef INCLUDED_IMF_RGBA_H
7#define INCLUDED_IMF_RGBA_H
8
9//-----------------------------------------------------------------------------
10//
11// class Rgba
12//
13//-----------------------------------------------------------------------------
14
15#include "ImfExport.h"
16#include "ImfNamespace.h"
17
18#include <half.h>
19
20OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
21
22
23//
24// RGBA pixel
25//
26
27struct Rgba
28{
29 half r;
30 half g;
31 half b;
32 half a;
33
34 Rgba () {}
35 Rgba (half r, half g, half b, half a = 1.f): r (r), g (g), b (b), a (a) {}
36};
37
38
39//
40// Channels in an RGBA file
41//
42
43enum IMF_EXPORT_ENUM RgbaChannels
44{
45 WRITE_R = 0x01, // Red
46 WRITE_G = 0x02, // Green
47 WRITE_B = 0x04, // Blue
48 WRITE_A = 0x08, // Alpha
49
50 WRITE_Y = 0x10, // Luminance, for black-and-white images,
51 // or in combination with chroma
52
53 WRITE_C = 0x20, // Chroma (two subsampled channels, RY and BY,
54 // supported only for scanline-based files)
55
56 WRITE_RGB = 0x07, // Red, green, blue
57 WRITE_RGBA = 0x0f, // Red, green, blue, alpha
58
59 WRITE_YC = 0x30, // Luminance, chroma
60 WRITE_YA = 0x18, // Luminance, alpha
61 WRITE_YCA = 0x38 // Luminance, chroma, alpha
62};
63
64
65OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
66
67
68
69
70
71#endif
72

source code of include/OpenEXR/ImfRgba.h