Struct SingleBufferSettings

pub struct SingleBufferSettings {
    pub buffer_settings: Option<BufferMemorySettings>,
    pub image_format_constraints: Option<ImageFormatConstraints>,
    /* private fields */
}

These settings and constraints apply to all the buffers in the collection.

Fields

buffer_settings: Option<BufferMemorySettings>

This field will always be set by sysmem.

image_format_constraints: Option<ImageFormatConstraints>

Buffers holding data that is not uncompressed image data will not have this field set. Buffers holding data that is uncompressed image data may have this field set.

At least for now, changing the PixelFormat requires re-allocating buffers.

If un-set, there are no image format constraints.

Trait Implementations

impl Clone for SingleBufferSettings

fn clone(&self) -> SingleBufferSettings

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SingleBufferSettings

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

Formats the value using the given formatter.

impl<D: ResourceDialect> Decode<SingleBufferSettings, D> for SingleBufferSettings

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self.

impl Default for SingleBufferSettings

fn default() -> SingleBufferSettings

Returns the “default value” for a type.

impl<D: ResourceDialect> Encode<SingleBufferSettings, D> for &SingleBufferSettings

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl PartialEq for SingleBufferSettings

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TypeMarker for SingleBufferSettings

type Owned = SingleBufferSettings

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for SingleBufferSettings

type Borrowed<'a> = &'a SingleBufferSettings

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow(value: &<Self as TypeMarker>::Owned) -> Self::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Persistable for SingleBufferSettings

impl StructuralPartialEq for SingleBufferSettings