DYT/Tool/OpenSceneGraph-3.6.5/include/OpenEXR/ImfRgba.h
2024-12-25 07:49:36 +08:00

65 lines
1.3 KiB
C

//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) Contributors to the OpenEXR Project.
//
#ifndef INCLUDED_IMF_RGBA_H
#define INCLUDED_IMF_RGBA_H
//-----------------------------------------------------------------------------
//
// class Rgba
//
//-----------------------------------------------------------------------------
#include "ImfExport.h"
#include "ImfNamespace.h"
#include <half.h>
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
//
// RGBA pixel
//
struct Rgba
{
half r;
half g;
half b;
half a;
Rgba () {}
Rgba (half r, half g, half b, half a = 1.f) : r (r), g (g), b (b), a (a) {}
};
//
// Channels in an RGBA file
//
enum IMF_EXPORT_ENUM RgbaChannels
{
WRITE_R = 0x01, // Red
WRITE_G = 0x02, // Green
WRITE_B = 0x04, // Blue
WRITE_A = 0x08, // Alpha
WRITE_Y = 0x10, // Luminance, for black-and-white images,
// or in combination with chroma
WRITE_C = 0x20, // Chroma (two subsampled channels, RY and BY,
// supported only for scanline-based files)
WRITE_RGB = 0x07, // Red, green, blue
WRITE_RGBA = 0x0f, // Red, green, blue, alpha
WRITE_YC = 0x30, // Luminance, chroma
WRITE_YA = 0x18, // Luminance, alpha
WRITE_YCA = 0x38 // Luminance, chroma, alpha
};
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
#endif