Struct DisplayBuffer 

pub struct DisplayBuffer<'t, FieldCount>
where
    FieldCount: NoFields,
{
    pub columns: u32,
    pub lines: u32,
    /* private fields */
}

DisplayBuffer

Contains either one or two fields. In case of progressive video, a field is just the same as the whole frame. In case of interlaced, it’s the image from either the odd or even lines.

Fields

columns: u32

The number of pixels horizontally

lines: u32

The number of pixels vertically

Trait Implementations

impl Canvas for DisplayBuffer<'_, OneField>

fn get_line_mut(&mut self, y: usize) -> &mut [u32]

Gives you a mutable slice containing pixel data for a specific line

Note: The last word of this slice is never fully used (either partially or not at all) and you can write anything you like there.

fn get_line(&mut self, y: usize) -> &[u32]

Gives you a slice containing pixel data for a specific line

Note: The last word of this slice is never fully used (either partially or not at all)

fn buffer(&self) -> &[u32]

Reference to the underlying buffer.

For more info, see DisplayBuffer::buffer_mut

unsafe fn buffer_mut(&mut self) -> &mut [u32]

Mutable reference to the underlying buffer

Safety

Be aware that there is more than just display data in the given slice. If you change non-pixel data in this buffer, the PIO state-machine can (and probably will) start to behave wrong and hang. It is advised to manipulate the DisplayBuffer with functions like DisplayBuffer::get_line_mut

fn width(&self) -> u32

fn height(&self) -> u32

fn set_pixel(&mut self, x: usize, y: usize, value: bool)

fn get_pixel(&self, x: usize, y: usize) -> bool

fn fill(&mut self, value: bool)

impl Canvas for DisplayBuffer<'_, TwoFields>

fn get_line_mut(&mut self, y: usize) -> &mut [u32]

Gives you a mutable slice containing pixel data for a specific line

Note: The last word of this slice is never fully used (either partially or not at all), and you can write anything you like there.

fn get_line(&mut self, y: usize) -> &[u32]

Gives you a slice containing pixel data for a specific line

Note: The last word of this slice is never fully used (either partially or not at all)

fn buffer(&self) -> &[u32]

Reference to the underlying buffer.

For more info, see DisplayBuffer::buffer_mut

unsafe fn buffer_mut(&mut self) -> &mut [u32]

Mutable reference to the underlying buffer

Safety

Be aware that there is more than just display data in the given slice. If you change non-pixel data in this buffer, the PIO state-machine can (and probably will) start to behave wrong and hang. It is advised to manipulate the DisplayBuffer with functions like DisplayBuffer::get_line_mut

fn width(&self) -> u32

fn height(&self) -> u32

fn set_pixel(&mut self, x: usize, y: usize, value: bool)

fn get_pixel(&self, x: usize, y: usize) -> bool

fn fill(&mut self, value: bool)