Struct GpuBuffer 

pub struct GpuBuffer {
    pub id: u64,
    pub usage: BufferUsage,
    pub label: Option<String>,
    /* private fields */
}

A logical GPU buffer (CPU-side descriptor; no actual WGPU resource here).

Fields

id: u64

Unique identifier assigned by the pool.

usage: BufferUsage

Intended usage.

label: Option<String>

Debug label shown in GPU profiling tools.

Implementations

impl GpuBuffer

pub fn new(id: u64, usage: BufferUsage, size: usize) -> Self

Creates a new GPU buffer descriptor.

pub fn with_label(self, label: impl Into<String>) -> Self

Creates a buffer with a debug label.

pub fn size_bytes(&self) -> usize

Returns the buffer size in bytes.

pub fn is_mapped(&self) -> bool

Returns true if the buffer is currently mapped for CPU access.

pub fn map(&mut self) -> Result<(), String>

Simulates mapping the buffer for CPU access.

Returns an error string if the buffer usage does not allow mapping.

pub fn unmap(&mut self)

Unmaps the buffer (no-op if not mapped).

pub fn aligned_size(&self) -> usize

Returns the size in 4-byte aligned units (useful for uniform offsets).

Trait Implementations

impl Clone for GpuBuffer

fn clone(&self) -> GpuBuffer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GpuBuffer

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

Formats the value using the given formatter.