Enum ColorFormat 

pub enum ColorFormat {
    Argb8888,
    Rgb888,
    Rgb565,
    Rgb444,
    L8,
    Mono,
}

Color resolution of the physical display.

The CPU framebuffer used by rlvgl is always 32-bit ARGB internally, but the target display panel may have lower bit depth. This enum describes the physical panel format so the simulator can apply the same quantization to its preview window — banding, dithering, and reduced colour space artefacts that the application would actually see on the target hardware become visible on the host.

Hardware drivers ignore this field; their flush already targets the panel’s native format. The field exists so simulators can simulate the target colour space when previewing apps that will ship to a lower-depth panel.

Variants

Argb8888

True-colour 32-bit ARGB. No quantization.

Rgb888

True-colour 24-bit RGB. Discards alpha.

Rgb565

16-bit RGB565. 5 bits red, 6 bits green, 5 bits blue.

Rgb444

12-bit RGB444. 4 bits per channel — common on small TFTs.

L8

8-bit greyscale.

Mono

1-bit monochrome (e.g. e-paper).

Implementations

impl ColorFormat

pub const fn quantize(&self, r: u8, g: u8, b: u8) -> (u8, u8, u8)

Quantize a 24-bit (r, g, b) triple to this color format and return it back in 24-bit (r, g, b) so callers can display the reduced precision in an 8-bit framebuffer.

For ColorFormat::Argb8888 this is a pass-through.

Trait Implementations

impl Clone for ColorFormat

fn clone(&self) -> ColorFormat

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ColorFormat

impl Debug for ColorFormat

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ColorFormat

impl PartialEq for ColorFormat

fn eq(&self, other: &ColorFormat) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ColorFormat