Struct DmaBufRingDescriptor 

pub struct DmaBufRingDescriptor {
    pub logical_size: LogicalSize,
    pub buffer_count: u32,
    pub formats: Vec<DmaBufFormat>,
}

A ring of dmabufs that the library allocates, for MapHandle::attach_dma_buf_ring().

Each buffer has the map’s size in pixels and a format and modifier from formats. The library renders only DRM_FORMAT_ABGR8888 and DRM_FORMAT_ARGB8888. A modifier can give a buffer more planes than its format has, such as a plane of compression metadata, and the library takes any such modifier that its GPU can render into and share.

See mln_dma_buf_ring_descriptor in the C API reference.

Fields

logical_size: LogicalSize

buffer_count: u32

How many buffers the ring has, from 1 to 8.

formats: Vec<DmaBufFormat>

The formats and modifiers that your reader imports, most preferred first, such as those that eglQueryDmaBufModifiersEXT() reports.

Implementations

impl DmaBufRingDescriptor

pub fn new( logical_size: LogicalSize, buffer_count: u32, formats: Vec<DmaBufFormat>, ) -> Self

Trait Implementations

impl Clone for DmaBufRingDescriptor

fn clone(&self) -> DmaBufRingDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DmaBufRingDescriptor

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

Formats the value using the given formatter.

impl PartialEq for DmaBufRingDescriptor

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DmaBufRingDescriptor