Enum CompressionScheme 

#[non_exhaustive]
#[repr(u32)]
pub enum CompressionScheme {
    Ubwc = 1,
    Afbc = 2,
    Pvric = 3,
    Dcc = 4,
}

Vendor tile-compression schemes the HAL recognizes and records.

Unrecognized platforms record None (linear) — there is deliberately no Unknown variant; a scheme is only recorded when the vendor is positively identified.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Ubwc = 1

Qualcomm Adreno Universal Bandwidth Compression.

Afbc = 2

Arm Mali/Immortalis Framebuffer Compression.

Pvric = 3

Imagination PowerVR Image Compression (Google Tensor G5+).

Dcc = 4

Samsung Xclipse (AMD RDNA) Delta Color Compression.

Implementations

impl CompressionScheme

pub const fn code(self) -> u32

The shared code for this variant. Identical on every surface.

const, deliberately: a downstream binding that cannot write Variant = OtherEnum::Variant.code() in a #[pyclass] discriminant position (PyO3 requires a literal there) can still pin that literal to this value with a const _: () = assert!(...) – a build-time check instead of a hand-synced comment. See PyTensorMemory/PyPixelFormat in crates/python-common/src/tensor.rs for the consumer.

pub fn from_code(code: u32) -> Option<Self>

Reject an unknown code rather than guessing at one.

pub fn as_str(self) -> &'static str

The wire string form – stable, unlike Debug.

pub fn from_str_code(s: &str) -> Option<Self>

Reject an unknown string rather than guessing at one.

pub fn all() -> &'static [Self]

Every variant, for exhaustive cross-surface tests.

Trait Implementations

impl Clone for CompressionScheme

fn clone(&self) -> CompressionScheme

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CompressionScheme

impl Debug for CompressionScheme

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

Formats the value using the given formatter.

impl Eq for CompressionScheme

impl Hash for CompressionScheme

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CompressionScheme

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CompressionScheme