Struct GpuTransformId 

#[repr(C)]
pub struct GpuTransformId(pub u32);

Represents the information about a transform palette entry that is passed to shaders. It includes an index into the transform palette, and a set of flags.

Tuple Fields

0: u32

Implementations

impl GpuTransformId

pub const IDENTITY: Self

Identity transform ID.

const INDEX_MASK: u32 = 0x003fffff

const AXIS_ALIGNED_2D_BIT: u32

if not set, the transform is axis-aligned.

const SCALE_OFFSET_2D_BIT: u32

If not set, the transform can be represented as a 2d scale + offset.

pub fn transform_kind(&self) -> TransformedRectKind

Extract the transform kind from the id.

pub fn is_2d_axis_aligned(&self) -> bool

Note: There are transformations that preserve axis-alignment without being scale + offsets.

pub fn is_2d_scale_offset(&self) -> bool

Returns true if the transform can be represented by a 2d scale + offset.

pub fn metadata(&self) -> TransformMetadata

pub fn override_transform_kind(&self, kind: TransformedRectKind) -> Self

Override the kind of transform stored in this id. This can be useful in cases where we don’t want shaders to consider certain transforms axis- aligned (i.e. perspective warp) even though we may still want to for the general case.

Trait Implementations

impl Clone for GpuTransformId

fn clone(&self) -> GpuTransformId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GpuTransformId

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

Formats the value using the given formatter.

impl MallocSizeOf for GpuTransformId

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq for GpuTransformId

fn eq(&self, other: &GpuTransformId) -> 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 Copy for GpuTransformId

impl StructuralPartialEq for GpuTransformId