hV_Colours565 Class Reference

for 5-6-5 coded colours = 64K colours More...

#include <hV_Colours565.h>

Public Member Functions
	hV_Colours565 ()
	Constructor.
Colours utilities
Note Advanced edition only
uint16_t	calculate (uint8_t red, uint8_t green, uint8_t blue)
	Calculate 16-bit colour from 8-bit Red-Green-Blue components.
void	split (uint16_t rgb, uint8_t &red, uint8_t &green, uint8_t &blue)
	Calculate 8-bit Red-Green-Blue components from 16-bit colour.
uint16_t	halve (uint16_t rgb)
	Half 16-bit colour.
uint16_t	average (uint16_t rgb1, uint16_t rgb2)
	Average two 16-bit colours.
uint16_t	weightedAverage (uint16_t rgb1, uint8_t weight1, uint16_t rgb2, uint8_t weight2)
	Weighted-average two 16-bit colours.
uint16_t	reverse (uint16_t rgb)
	Reverse 16-bit colour.
uint16_t	code (uint8_t value09)
	Return 16-bit colour from international colour code.

Static Public Attributes
Colours constants
Note Both syntaxes are valid myColours.black and hV_Colours565::black with extern hV_Colours565 myColours; declared below
static const uint16_t	black = 0b0000000000000000
	black
static const uint16_t	white = 0b1111111111111111
	white
static const uint16_t	red = 0b1111100000000000
	red
static const uint16_t	green = 0b0000011111100000
	green
static const uint16_t	blue = 0b0000000000011111
	blue
static const uint16_t	yellow = 0b1111111111100000
	yellow
static const uint16_t	cyan = 0b0000011111111111
	cyan
static const uint16_t	orange = 0b1111101111100000
	orange
static const uint16_t	magenta = 0b1111100000001111
	magenta
static const uint16_t	violet = 0b1111100000011111
	violet
static const uint16_t	grey = 0b0111101111101111
	grey
static const uint16_t	darkGrey = 0b0011100111100111
	dark grey
static const uint16_t	brown = 0b0111100000000000
	brown
static const uint16_t	gray = 0b0111101111101111
	American-English variants.
static const uint16_t	darkGray = 0b0011100111100111
	American-English variant for dark grey.
static const uint16_t	darkRed = 0b0011100000000000
	dark red for BWR and BWRY colour screens
static const uint16_t	lightRed = 0b1111100011100011
	light red for BWR and BWRY colour screens
static const uint16_t	darkYellow = 0b0011100011100000
	dark yellow for BWRY colour screens
static const uint16_t	lightYellow = 0b1111111111100011
	light yellow for BWRY colour screens

Detailed Description

for 5-6-5 coded colours = 64K colours

red: 5 bits, green: 6 bits, blue: 5 bits

Member Function Documentation

average()

uint16_t hV_Colours565::average	(	uint16_t	rgb1,
		uint16_t	rgb2 )

Average two 16-bit colours.

Parameters

rgb1	first 16-bit colour
rgb2	second 16-bit colour

Returns

averaged 16-bit colour

Note

Advanced edition only

More: Colours

calculate()

uint16_t hV_Colours565::calculate	(	uint8_t	red,
		uint8_t	green,
		uint8_t	blue )

Calculate 16-bit colour from 8-bit Red-Green-Blue components.

Parameters

red	red component, 0x00..0xff
green	green component, 0x00..0xff
blue	blue component, 0x00..0xff

Returns

16-bit colour

Note

Advanced edition only

More: Colours

code()

uint16_t hV_Colours565::code

(

uint8_t

value09

)

Return 16-bit colour from international colour code.

Parameters

value09

0..9 for normal colours, 10..19 for dark colours

Returns

rgb 16-bit colour

See also

IEC 60062:2016 Marking codes for resistors and capacitors

• https://en.wikipedia.org/wiki/Electronic_color_code

Note

Advanced edition only

More: Colours

halve()

uint16_t hV_Colours565::halve

(

uint16_t

rgb

)

Half 16-bit colour.

Parameters

rgb	16-bit colour

Returns

halved 16-bit colour

Note

Advanced edition only

More: Colours

reverse()

uint16_t hV_Colours565::reverse

(

uint16_t

rgb

)

Reverse 16-bit colour.

Parameters

rgb	16-bit colour

Returns

reversed 16-bit colour

Note

Advanced edition only

More: Colours

split()

void hV_Colours565::split	(	uint16_t	rgb,
		uint8_t &	red,
		uint8_t &	green,
		uint8_t &	blue )

Calculate 8-bit Red-Green-Blue components from 16-bit colour.

Parameters

rgb	16-bit colour
red	red component, 0x00..0xff
green	green component, 0x00..0xff
blue	blue component, 0x00..0xff

Note

Advanced edition only

More: Colours

weightedAverage()

uint16_t hV_Colours565::weightedAverage	(	uint16_t	rgb1,
		uint8_t	weight1,
		uint16_t	rgb2,
		uint8_t	weight2 )

Weighted-average two 16-bit colours.

Parameters

rgb1	first 16-bit colour
weight1	weight of the first colour
rgb2	second 16-bit colour
weight2	weight of the second colour

Returns

averaged 16-bit colour

Note

Advanced edition only

More: Colours

Member Data Documentation

gray

const uint16_t hV_Colours565::gray = 0b0111101111101111

static

American-English variants.

American-English variant for grey

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The documentation for this class was generated from the following file:

• hV_Colours565.h