Module backends

Backends for a framebuffer.

One could use a simple array of PixelColor, or some more elaborate proxy backends.

Example:

use embedded_graphics::{pixelcolor::Rgb565, prelude::RgbColor};
use embedded_graphics_framebuf::{
    backends::{EndianCorrectedBuffer, EndianCorrection},
    FrameBuf,
};

// A potential backend
let mut data = [Rgb565::BLACK; 12 * 11];
let mut fbuf = FrameBuf::new(&mut data, 12, 11);

// Another potential backend that is owned by the framebuffer
let mut fbuf = FrameBuf::new([Rgb565::BLACK; 12 * 11], 12, 11);

let mut fbuf = FrameBuf::new(
    EndianCorrectedBuffer::new(&mut data, EndianCorrection::ToBigEndian),
    12,
    11,
);

Structs

EndianCorrectedBuffer

A backend for FrameBuf which changes the underlying byte order. This can be useful when using the buffer for DMA with peripherals that have a different endianness than the host.

Enums

EndianCorrection

Enum indicating how the bytes should be converted in the host’s memory.

Traits

DMACapableFrameBufferBackend

Backends implementing this Trait can be used for DMA.

FrameBufferBackend

This trait marks the requirements for backends for a FrameBuf.