utils.hpp File Reference

Manipulate color representations. More...

Go to the source code of this file.

Classes
struct	lampda::modes::colors::ToRGB
	Exposes (r, g, b) as uint8_t in struct from a single uint32_t color. More...

Namespaces
namespace	lampda
	Program scope.
namespace	lampda::modes
	Contains basic interface types to implement custom user modes.
namespace	lampda::modes::colors
	Tools to manipulate colors and their representation.

Functions
static constexpr LMBD_INLINE uint32_t	lampda::modes::colors::fromRGB (uint8_t r, uint8_t g, uint8_t b)
	Return color (r, g, b) as a single uint32_t integer.
static constexpr LMBD_INLINE uint32_t	lampda::modes::colors::fromGrey (uint32_t w)
	Return color (w, w, w) as a single uint32_t integer.
static constexpr LMBD_INLINE uint32_t	lampda::modes::colors::fromAngleHue (uint16_t angleDegrees)
	Given a 360 degrees angle, return a corresponding color as an integer.
template<typename UIntTy = uint8_t>
static constexpr uint32_t	lampda::modes::colors::blend (uint32_t leftColor, uint32_t rightColor, UIntTy blendIndex)
	blend to two colors
template<bool isVideoMode = false>
static uint32_t	lampda::modes::colors::fade (uint32_t inputColor, uint8_t fadeAmount)
	fade the color toward black
template<bool isFast = false>
uint32_t	lampda::modes::colors::add (uint32_t c1, uint32_t c2)
	Add two colors together.
static constexpr uint16_t	lampda::modes::colors::get_compressed_16b_color (uint32_t color)
static constexpr uint32_t	lampda::modes::colors::get_decompressed_32b_color (uint16_t color)

Variables
static constexpr uint8_t	lampda::modes::colors::colorRotation [360]
	precompiled table for Hue
static constexpr uint8_t	lampda::modes::colors::__internal::hicolor_256_to_32 []
static constexpr uint8_t	lampda::modes::colors::__internal::hicolor_256_to_64 []
static constexpr uint8_t	lampda::modes::colors::__internal::hicolor_32_to_256 []
static constexpr uint8_t	lampda::modes::colors::__internal::hicolor_64_to_256 []

Detailed Description

Manipulate color representations.

Variable Documentation

hicolor_256_to_32

constexpr uint8_t lampda::modes::colors::__internal::hicolor_256_to_32[]

staticconstexpr

Initial value:

= {
        0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  2,  2,  2,  2,  3,  3,
        3,  3,  3,  3,  3,  3,  4,  4,  4,  4,  4,  4,  4,  4,  5,  5,  5,  5,  5,  5,  5,  5,  6,  6,  6,  6,
        6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,  8,  8,  8,  8,  8,  8,  8,  8,  9,  9,  9,  9,  9,  9,
        9,  9,  10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12,
        13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16,
        16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
        19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22,
        22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25,
        26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29,
        29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31, 31}

hicolor_256_to_64

constexpr uint8_t lampda::modes::colors::__internal::hicolor_256_to_64[]

staticconstexpr

Initial value:

= {
        0,  0,  0,  0,  1,  1,  1,  1,  2,  2,  2,  2,  3,  3,  3,  3,  4,  4,  4,  4,  5,  5,  5,  5,  6,  6,
        6,  6,  7,  7,  7,  7,  8,  8,  8,  8,  9,  9,  9,  9,  10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12,
        13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 19, 19,
        19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 25, 25, 25, 25,
        26, 26, 26, 26, 27, 27, 27, 27, 28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 31, 32, 32,
        32, 32, 33, 33, 33, 33, 34, 34, 34, 34, 35, 35, 35, 35, 36, 36, 36, 36, 37, 37, 37, 37, 38, 38, 38, 38,
        39, 39, 39, 39, 40, 40, 40, 40, 41, 41, 41, 41, 42, 42, 42, 42, 43, 43, 43, 43, 44, 44, 44, 44, 45, 45,
        45, 45, 46, 46, 46, 46, 47, 47, 47, 47, 48, 48, 48, 48, 49, 49, 49, 49, 50, 50, 50, 50, 51, 51, 51, 51,
        52, 52, 52, 52, 53, 53, 53, 53, 54, 54, 54, 54, 55, 55, 55, 55, 56, 56, 56, 56, 57, 57, 57, 57, 58, 58,
        58, 58, 59, 59, 59, 59, 60, 60, 60, 60, 61, 61, 61, 61, 62, 62, 62, 62, 63, 63, 63, 63}

hicolor_32_to_256

constexpr uint8_t lampda::modes::colors::__internal::hicolor_32_to_256[]

staticconstexpr

Initial value:

= {0,   8,   16,  24,  33,  41,  49,  57,  66,  74,  82,
                                                90,  99,  107, 115, 123, 132, 140, 148, 156, 165, 173,
                                                181, 189, 198, 206, 214, 222, 231, 239, 247, 255}

hicolor_64_to_256

constexpr uint8_t lampda::modes::colors::__internal::hicolor_64_to_256[]

staticconstexpr

Initial value:

= {
        0,   4,   8,   12,  16,  20,  24,  28,  32,  36,  40,  44,  48,  52,  56,  60,  65,  69,  73,  77,  81,  85,
        89,  93,  97,  101, 105, 109, 113, 117, 121, 125, 130, 134, 138, 142, 146, 150, 154, 158, 162, 166, 170, 174,
        178, 182, 186, 190, 195, 199, 203, 207, 211, 215, 219, 223, 227, 231, 235, 239, 243, 247, 251, 255}