lv_color.h
Defines
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LV_COLOR_NATIVE_WITH_ALPHA_SIZE
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LV_OPA_MIN
Opacities below this will be transparent
-
LV_OPA_MAX
Opacities above this will fully cover
-
LV_COLOR_FORMAT_GET_BPP(cf)
Get the pixel size of a color format in bits, bpp
See also
- Parameters:
cf -- a color format (
LV_COLOR_FORMAT_...
)
- Returns:
the pixel size in bits
-
LV_COLOR_FORMAT_GET_SIZE(cf)
Get the pixel size of a color format in bytes
See also
- Parameters:
cf -- a color format (
LV_COLOR_FORMAT_...
)
- Returns:
the pixel size in bytes
-
LV_COLOR_FORMAT_IS_ALPHA_ONLY(cf)
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LV_COLOR_FORMAT_IS_INDEXED(cf)
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LV_COLOR_FORMAT_IS_YUV(cf)
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LV_COLOR_INDEXED_PALETTE_SIZE(cf)
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LV_COLOR_MAKE(r8, g8, b8)
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LV_OPA_MIX2(a1, a2)
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LV_OPA_MIX3(a1, a2, a3)
Enums
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enum [anonymous]
Opacity percentages.
Values:
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enumerator LV_OPA_TRANSP
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enumerator LV_OPA_0
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enumerator LV_OPA_10
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enumerator LV_OPA_20
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enumerator LV_OPA_30
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enumerator LV_OPA_40
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enumerator LV_OPA_50
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enumerator LV_OPA_60
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enumerator LV_OPA_70
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enumerator LV_OPA_80
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enumerator LV_OPA_90
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enumerator LV_OPA_100
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enumerator LV_OPA_COVER
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enumerator LV_OPA_TRANSP
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enum lv_color_format_t
Values:
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enumerator LV_COLOR_FORMAT_UNKNOWN
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enumerator LV_COLOR_FORMAT_RAW
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enumerator LV_COLOR_FORMAT_RAW_ALPHA
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enumerator LV_COLOR_FORMAT_L8
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enumerator LV_COLOR_FORMAT_I1
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enumerator LV_COLOR_FORMAT_I2
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enumerator LV_COLOR_FORMAT_I4
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enumerator LV_COLOR_FORMAT_I8
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enumerator LV_COLOR_FORMAT_A8
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enumerator LV_COLOR_FORMAT_RGB565
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enumerator LV_COLOR_FORMAT_ARGB8565
Not supported by sw renderer yet.
-
enumerator LV_COLOR_FORMAT_RGB565A8
Color array followed by Alpha array
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enumerator LV_COLOR_FORMAT_AL88
L8 with alpha >
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enumerator LV_COLOR_FORMAT_RGB888
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enumerator LV_COLOR_FORMAT_ARGB8888
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enumerator LV_COLOR_FORMAT_XRGB8888
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enumerator LV_COLOR_FORMAT_A1
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enumerator LV_COLOR_FORMAT_A2
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enumerator LV_COLOR_FORMAT_A4
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enumerator LV_COLOR_FORMAT_YUV_START
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enumerator LV_COLOR_FORMAT_I420
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enumerator LV_COLOR_FORMAT_I422
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enumerator LV_COLOR_FORMAT_I444
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enumerator LV_COLOR_FORMAT_I400
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enumerator LV_COLOR_FORMAT_NV21
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enumerator LV_COLOR_FORMAT_NV12
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enumerator LV_COLOR_FORMAT_YUY2
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enumerator LV_COLOR_FORMAT_UYVY
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enumerator LV_COLOR_FORMAT_YUV_END
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enumerator LV_COLOR_FORMAT_NATIVE
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enumerator LV_COLOR_FORMAT_NATIVE_WITH_ALPHA
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enumerator LV_COLOR_FORMAT_UNKNOWN
Functions
-
uint8_t lv_color_format_get_bpp(lv_color_format_t cf)
Get the pixel size of a color format in bits, bpp
See also
- Parameters:
cf -- a color format (
LV_COLOR_FORMAT_...
)- Returns:
the pixel size in bits
-
uint8_t lv_color_format_get_size(lv_color_format_t cf)
Get the pixel size of a color format in bytes
See also
- Parameters:
cf -- a color format (
LV_COLOR_FORMAT_...
)- Returns:
the pixel size in bytes
-
bool lv_color_format_has_alpha(lv_color_format_t src_cf)
Check if a color format has alpha channel or not
- Parameters:
src_cf -- a color format (
LV_COLOR_FORMAT_...
)- Returns:
true: has alpha channel; false: doesn't have alpha channel
-
lv_color32_t lv_color_to_32(lv_color_t color, lv_opa_t opa)
Create an ARGB8888 color from RGB888 + alpha
- Parameters:
color -- an RGB888 color
opa -- the alpha value
- Returns:
the ARGB8888 color
-
uint32_t lv_color_to_int(lv_color_t c)
Convert an RGB888 color to an integer
- Parameters:
c -- an RGB888 color
- Returns:
c
as an integer
-
bool lv_color_eq(lv_color_t c1, lv_color_t c2)
Check if two RGB888 color are equal
- Parameters:
c1 -- the first color
c2 -- the second color
- Returns:
true: equal
-
bool lv_color32_eq(lv_color32_t c1, lv_color32_t c2)
Check if two ARGB8888 color are equal
- Parameters:
c1 -- the first color
c2 -- the second color
- Returns:
true: equal
-
lv_color_t lv_color_hex(uint32_t c)
Create a color from 0x000000..0xffffff input
- Parameters:
c -- the hex input
- Returns:
the color
-
lv_color_t lv_color_make(uint8_t r, uint8_t g, uint8_t b)
Create an RGB888 color
- Parameters:
r -- the red channel (0..255)
g -- the green channel (0..255)
b -- the blue channel (0..255)
- Returns:
the color
-
lv_color32_t lv_color32_make(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
Create an ARGB8888 color
- Parameters:
r -- the red channel (0..255)
g -- the green channel (0..255)
b -- the blue channel (0..255)
a -- the alpha channel (0..255)
- Returns:
the color
-
lv_color_t lv_color_hex3(uint32_t c)
Create a color from 0x000..0xfff input
- Parameters:
c -- the hex input (e.g. 0x123 will be 0x112233)
- Returns:
the color
-
uint16_t lv_color_to_u16(lv_color_t color)
Convert am RGB888 color to RGB565 stored in
uint16_t
- Parameters:
color -- and RGB888 color
- Returns:
color
as RGB565 onuin16_t
-
uint32_t lv_color_to_u32(lv_color_t color)
Convert am RGB888 color to XRGB8888 stored in
uint32_t
- Parameters:
color -- and RGB888 color
- Returns:
color
as XRGB8888 onuin32_t
(the alpha channel is always set to 0xFF)
-
uint16_t lv_color_16_16_mix(uint16_t c1, uint16_t c2, uint8_t mix)
Mix two RGB565 colors
- Parameters:
c1 -- the first color (typically the foreground color)
c2 -- the second color (typically the background color)
mix -- 0..255, or LV_OPA_0/10/20...
- Returns:
mix == 0: c2 mix == 255: c1 mix == 128: 0.5 x c1 + 0.5 x c2
-
lv_color_t lv_color_lighten(lv_color_t c, lv_opa_t lvl)
Mix white to a color
- Parameters:
c -- the base color
lvl -- the intensity of white (0: no change, 255: fully white)
- Returns:
the mixed color
-
lv_color_t lv_color_darken(lv_color_t c, lv_opa_t lvl)
Mix black to a color
- Parameters:
c -- the base color
lvl -- the intensity of black (0: no change, 255: fully black)
- Returns:
the mixed color
-
lv_color_t lv_color_hsv_to_rgb(uint16_t h, uint8_t s, uint8_t v)
Convert a HSV color to RGB
- Parameters:
h -- hue [0..359]
s -- saturation [0..100]
v -- value [0..100]
- Returns:
the given RGB color in RGB (with LV_COLOR_DEPTH depth)
-
lv_color_hsv_t lv_color_rgb_to_hsv(uint8_t r8, uint8_t g8, uint8_t b8)
Convert a 32-bit RGB color to HSV
- Parameters:
r8 -- 8-bit red
g8 -- 8-bit green
b8 -- 8-bit blue
- Returns:
the given RGB color in HSV
-
lv_color_hsv_t lv_color_to_hsv(lv_color_t color)
Convert a color to HSV
- Parameters:
color -- color
- Returns:
the given color in HSV
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lv_color_t lv_color_white(void)
A helper for white color
- Returns:
a white color
-
lv_color_t lv_color_black(void)
A helper for black color
- Returns:
a black color
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void lv_color_premultiply(lv_color32_t *c)
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void lv_color16_premultiply(lv_color16_t *c, lv_opa_t a)
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uint8_t lv_color_luminance(lv_color_t c)
Get the luminance of a color: luminance = 0.3 R + 0.59 G + 0.11 B
- Parameters:
c -- a color
- Returns:
the brightness [0..255]
-
uint8_t lv_color16_luminance(const lv_color16_t c)
Get the luminance of a color16: luminance = 0.3 R + 0.59 G + 0.11 B
- Parameters:
c -- a color
- Returns:
the brightness [0..255]
-
uint8_t lv_color24_luminance(const uint8_t *c)
Get the luminance of a color24: luminance = 0.3 R + 0.59 G + 0.11 B
- Parameters:
c -- a color
- Returns:
the brightness [0..255]
-
uint8_t lv_color32_luminance(lv_color32_t c)
Get the luminance of a color32: luminance = 0.3 R + 0.59 G + 0.11 B
- Parameters:
c -- a color
- Returns:
the brightness [0..255]
Variables
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const lv_color_filter_dsc_t lv_color_filter_shade
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struct lv_color_t
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struct lv_color16_t
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struct lv_color32_t
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struct lv_color_hsv_t
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struct lv_color16a_t