Struct DmaFrameBuffer 

pub struct DmaFrameBuffer<const NROWS: usize, const COLS: usize, const PLANES: usize> { /* private fields */ }

The entire BCM Frame Buffer (per-plane storage).

Implementations

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> DmaFrameBuffer<NROWS, COLS, PLANES>

pub fn new() -> Self

Creates a new frame buffer, pre-formatted and ready for use.

pub const fn bcm_chunk_count() -> usize

Returns the number of BCM chunks (one per bit-plane).

pub const fn bcm_chunk_bytes() -> usize

Returns the byte size of one BCM chunk (a single bit-plane).

pub fn format(&mut self)

Formats the frame buffer with row addresses and control bits.

pub fn erase(&mut self)

Erase pixel colors while preserving row control data.

pub fn set_pixel(&mut self, p: Point, color: Color)

Set a pixel in the framebuffer.

Trait Implementations

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> Clone for DmaFrameBuffer<NROWS, COLS, PLANES>

fn clone(&self) -> DmaFrameBuffer<NROWS, COLS, PLANES>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> Debug for DmaFrameBuffer<NROWS, COLS, PLANES>

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

Formats the value using the given formatter.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> Default for DmaFrameBuffer<NROWS, COLS, PLANES>

fn default() -> Self

Returns the “default value” for a type.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> DrawTarget for DmaFrameBuffer<NROWS, COLS, PLANES>

type Color = Rgb888

The pixel color type the targetted display supports.

type Error = Infallible

Error type to return when a drawing operation fails.

fn draw_iter<I>(&mut self, pixels: I) -> Result<(), Self::Error>

where I: IntoIterator<Item = Pixel<Self::Color>>,

Draw individual pixels to the display without a defined order.

fn fill_contiguous<I>( &mut self, area: &Rectangle, colors: I, ) -> Result<(), Self::Error>

where I: IntoIterator<Item = Self::Color>,

Fill a given area with an iterator providing a contiguous stream of pixel colors.

fn fill_solid( &mut self, area: &Rectangle, color: Self::Color, ) -> Result<(), Self::Error>

Fill a given area with a solid color.

fn clear(&mut self, color: Self::Color) -> Result<(), Self::Error>

Fill the entire display with a solid color.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> FrameBuffer for DmaFrameBuffer<NROWS, COLS, PLANES>

fn get_word_size(&self) -> WordSize

Returns the word size configuration for this framebuffer

fn plane_count(&self) -> usize

Returns the number of BCM bit-planes in this framebuffer.

fn plane_ptr_len(&self, plane_idx: usize) -> (*const u8, usize)

Returns a raw pointer and byte length for the given plane.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> FrameBufferOperations for DmaFrameBuffer<NROWS, COLS, PLANES>

fn erase(&mut self)

Erase pixel colors while preserving control bits. This is much faster than format() and is the typical way to clear the display.

fn set_pixel(&mut self, p: Point, color: Color)

Set a pixel in the framebuffer.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> OriginDimensions for DmaFrameBuffer<NROWS, COLS, PLANES>

fn size(&self) -> Size

Returns the size of the bounding box.

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> Copy for DmaFrameBuffer<NROWS, COLS, PLANES>

impl<const NROWS: usize, const COLS: usize, const PLANES: usize> MutableFrameBuffer for DmaFrameBuffer<NROWS, COLS, PLANES>