Struct Memcpy2DParams 

pub struct Memcpy2DParams {
    pub src_pitch: usize,
    pub dst_pitch: usize,
    pub width: usize,
    pub height: usize,
}

Parameters for a 2D (pitched) memory copy.

A “pitched” allocation stores 2D data where each row occupies pitch bytes, of which only width bytes contain actual data. The remaining pitch - width bytes per row are alignment padding.

Both source and destination may have different pitches (e.g., when copying between allocations created by different cuMemAllocPitch calls or between host and device memory).

Fields

src_pitch: usize

Bytes per row in the source (including padding).

dst_pitch: usize

Bytes per row in the destination (including padding).

width: usize

Bytes of actual data to copy per row.

height: usize

Number of rows to copy.

Implementations

impl Memcpy2DParams

pub fn new( src_pitch: usize, dst_pitch: usize, width: usize, height: usize, ) -> Self

Creates new 2D copy parameters.

Parameters

• src_pitch - Source bytes per row (including padding).
• dst_pitch - Destination bytes per row (including padding).
• width - Data bytes to copy per row.
• height - Number of rows.

pub fn validate(&self) -> CudaResult<()>

Validates the parameters.

Checks that width <= both pitches, and that all dimensions are non-zero.

Errors

Returns CudaError::InvalidValue if any constraint is violated.

pub fn src_byte_extent(&self) -> usize

Returns the total bytes that would be read from the source.

This is (height - 1) * src_pitch + width to account for the fact that the last row does not need trailing padding.

pub fn dst_byte_extent(&self) -> usize

Returns the total bytes that would be written to the destination.

Trait Implementations

impl Clone for Memcpy2DParams

fn clone(&self) -> Memcpy2DParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Memcpy2DParams

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

Formats the value using the given formatter.

impl Display for Memcpy2DParams

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

Formats the value using the given formatter.

impl PartialEq for Memcpy2DParams

fn eq(&self, other: &Memcpy2DParams) -> 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 Memcpy2DParams

impl Eq for Memcpy2DParams

impl StructuralPartialEq for Memcpy2DParams