EIC code displayed by LXR |
|
|
|
|||
File indexing completed on 2025-01-18 09:59:34
0001 //----------------------------------*-C++-*----------------------------------// 0002 // Copyright 2024 UT-Battelle, LLC, and other Celeritas developers. 0003 // See the top-level COPYRIGHT file for details. 0004 // SPDX-License-Identifier: (Apache-2.0 OR MIT) 0005 //---------------------------------------------------------------------------// 0006 //! \file geocel/rasterize/Color.hh 0007 //---------------------------------------------------------------------------// 0008 #pragma once 0009 0010 #include <cstdint> 0011 #include <string> 0012 #include <string_view> 0013 0014 #include "corecel/Assert.hh" 0015 #include "corecel/cont/Array.hh" 0016 0017 namespace celeritas 0018 { 0019 //---------------------------------------------------------------------------// 0020 /*! 0021 * Stora an RGBA color. 0022 * 0023 * This is used to define volume/material colors used for raytrace rendering. 0024 * The "byte" is the bit depth of a channel. 0025 */ 0026 class Color 0027 { 0028 public: 0029 //!@{ 0030 //! \name Type aliases 0031 using byte_type = std::uint8_t; 0032 using size_type = std::uint32_t; 0033 using Byte4 = Array<byte_type, 4>; 0034 //!@} 0035 0036 //! Little-endian indexing for RGBA 0037 enum class Channel 0038 { 0039 alpha, 0040 blue, 0041 green, 0042 red, 0043 size_ 0044 }; 0045 0046 public: 0047 // Construct with an \c #0178ef RGB string (100% opaque) 0048 static Color from_html(std::string_view rgb); 0049 0050 // Construct from an RGB hex value 0051 static Color from_rgb(size_type rgb); 0052 0053 // Construct from an RGBA hex value 0054 static Color from_rgba(size_type rgba); 0055 0056 // Construct with transparent black 0057 Color() = default; 0058 0059 //! Construct from an integer representation 0060 explicit CELER_CONSTEXPR_FUNCTION Color(size_type c) : color_{c} {} 0061 0062 //! Get an integer representation of the color 0063 explicit CELER_CONSTEXPR_FUNCTION operator size_type() const 0064 { 0065 return color_; 0066 } 0067 0068 // Get representation as HTML color \#RRGGBB 0069 std::string to_html() const; 0070 0071 // Get a single channel 0072 inline CELER_FUNCTION byte_type channel(Channel c) const; 0073 0074 private: 0075 //! Encoded color value 0076 size_type color_{0}; 0077 }; 0078 0079 //---------------------------------------------------------------------------// 0080 // INLINE DEFINITIONS 0081 //---------------------------------------------------------------------------// 0082 /*! 0083 * Get a single channel. 0084 */ 0085 CELER_FUNCTION auto Color::channel(Channel c) const -> byte_type 0086 { 0087 CELER_EXPECT(c < Channel::size_); 0088 size_type result = color_; 0089 result >>= (8 * static_cast<size_type>(c)); 0090 result &= 0xffu; 0091 return static_cast<byte_type>(result); 0092 } 0093 0094 //---------------------------------------------------------------------------// 0095 } // namespace celeritas
| [ Source navigation ] | [ Diff markup ] | [ Identifier search ] | [ general search ] |
|
This page was automatically generated by the 2.3.7 LXR engine. The LXR team |
|