Struct ScalarFallback 

pub struct ScalarFallback;

Scalar fallback SIMD implementation.

Implementations

impl ScalarFallback

pub const fn new() -> Self

Create a new scalar fallback instance.

Trait Implementations

impl Clone for ScalarFallback

fn clone(&self) -> ScalarFallback

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalarFallback

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

Formats the value using the given formatter.

impl Default for ScalarFallback

fn default() -> Self

Returns the “default value” for a type.

impl SimdOps for ScalarFallback

fn name(&self) -> &'static str

Get the name of this SIMD implementation.

fn is_available(&self) -> bool

Check if this implementation is available on the current CPU.

fn add_i16x8(&self, a: I16x8, b: I16x8) -> I16x8

Element-wise addition of two i16x8 vectors.

fn sub_i16x8(&self, a: I16x8, b: I16x8) -> I16x8

Element-wise subtraction of two i16x8 vectors.

fn mul_i16x8(&self, a: I16x8, b: I16x8) -> I16x8

Element-wise multiplication of two i16x8 vectors.

fn add_i32x4(&self, a: I32x4, b: I32x4) -> I32x4

Element-wise addition of two i32x4 vectors.

fn sub_i32x4(&self, a: I32x4, b: I32x4) -> I32x4

Element-wise subtraction of two i32x4 vectors.

fn min_i16x8(&self, a: I16x8, b: I16x8) -> I16x8

Element-wise minimum of two i16x8 vectors.

fn max_i16x8(&self, a: I16x8, b: I16x8) -> I16x8

Element-wise maximum of two i16x8 vectors.

fn clamp_i16x8(&self, v: I16x8, min: i16, max: i16) -> I16x8

Element-wise clamp of i16x8 vector.

fn min_u8x16(&self, a: U8x16, b: U8x16) -> U8x16

Element-wise minimum of two u8x16 vectors.

fn max_u8x16(&self, a: U8x16, b: U8x16) -> U8x16

Element-wise maximum of two u8x16 vectors.

fn clamp_u8x16(&self, v: U8x16, min: u8, max: u8) -> U8x16

Element-wise clamp of u8x16 vector.

fn horizontal_sum_i16x8(&self, v: I16x8) -> i32

Horizontal sum of all elements in an i16x8 vector.

fn horizontal_sum_i32x4(&self, v: I32x4) -> i32

Horizontal sum of all elements in an i32x4 vector.

fn sad_u8x16(&self, a: U8x16, b: U8x16) -> u32

Sum of absolute differences between two u8x16 vectors.

fn sad_8(&self, a: &[u8], b: &[u8]) -> u32

Sum of absolute differences for 8 bytes.

fn sad_16(&self, a: &[u8], b: &[u8]) -> u32

Sum of absolute differences for 16 bytes.

fn widen_low_u8_to_i16(&self, v: U8x16) -> I16x8

Widen u8x16 low half to i16x8.

fn widen_high_u8_to_i16(&self, v: U8x16) -> I16x8

Widen u8x16 high half to i16x8.

fn narrow_i32x4_to_i16x8(&self, low: I32x4, high: I32x4) -> I16x8

Narrow two i32x4 to i16x8 with saturation.

fn madd_i16x8(&self, a: I16x8, b: I16x8, c: I16x8) -> I16x8

Multiply and add: a * b + c for i16x8.

fn pmaddwd(&self, a: I16x8, b: I16x8) -> I32x4

Multiply pairs and add adjacent results (pmaddwd equivalent).

fn shr_i16x8(&self, v: I16x8, shift: u32) -> I16x8

Arithmetic right shift of i16x8 by immediate.

fn shl_i16x8(&self, v: I16x8, shift: u32) -> I16x8

Logical left shift of i16x8 by immediate.

fn shr_i32x4(&self, v: I32x4, shift: u32) -> I32x4

Arithmetic right shift of i32x4 by immediate.

fn shl_i32x4(&self, v: I32x4, shift: u32) -> I32x4

Logical left shift of i32x4 by immediate.

fn avg_u8x16(&self, a: U8x16, b: U8x16) -> U8x16

Average of two u8x16 vectors (rounding up).

impl SimdOpsExt for ScalarFallback

fn load4_u8_to_i16x8(&self, src: &[u8]) -> I16x8

Load 4 bytes from memory and zero-extend to i16x8.

fn load8_u8_to_i16x8(&self, src: &[u8]) -> I16x8

Load 8 bytes from memory and zero-extend to i16x8.

fn store4_i16x8_as_u8(&self, v: I16x8, dst: &mut [u8])

Store lower 4 elements of i16x8 to memory as saturated u8.

fn store8_i16x8_as_u8(&self, v: I16x8, dst: &mut [u8])

Store lower 8 elements of i16x8 to memory as saturated u8.

fn transpose_4x4_i16(&self, rows: &[I16x8; 4]) -> [I16x8; 4]

Transpose 4x4 block of i16 values.

fn transpose_8x8_i16(&self, rows: &[I16x8; 8]) -> [I16x8; 8]

Transpose 8x8 block of i16 values.

fn butterfly_i16x8(&self, a: I16x8, b: I16x8) -> (I16x8, I16x8)

DCT butterfly: (a + b, a - b).

fn butterfly_i32x4(&self, a: I32x4, b: I32x4) -> (I32x4, I32x4)

DCT butterfly for i32x4.

impl Copy for ScalarFallback