Struct IoSurfaceRingDescriptor 

pub struct IoSurfaceRingDescriptor {
    pub logical_size: LogicalSize,
    pub buffer_count: u32,
    pub context: MetalContextDescriptor,
}

A ring of IOSurfaces that the library allocates, for MapHandle::attach_io_surface_ring().

Each surface has the map’s size in pixels, logical_size times the map’s scale factor, and the pixel format kCVPixelFormatType_32BGRA, which Metal names MTLPixelFormatBGRA8Unorm.

See mln_io_surface_ring_descriptor in the C API reference.

Fields

logical_size: LogicalSize

buffer_count: u32

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

context: MetalContextDescriptor

The MTLDevice to render with. A null device picks the system’s default.

Implementations

impl IoSurfaceRingDescriptor

pub fn new(logical_size: LogicalSize, buffer_count: u32) -> Self

Trait Implementations

impl Clone for IoSurfaceRingDescriptor

fn clone(&self) -> IoSurfaceRingDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IoSurfaceRingDescriptor

impl Debug for IoSurfaceRingDescriptor

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

Formats the value using the given formatter.

impl PartialEq for IoSurfaceRingDescriptor

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for IoSurfaceRingDescriptor