Struct PushConstantsLayout 

pub struct PushConstantsLayout {
    pub ranges: Vec<PushConstantRange>,
    pub total_size: u32,
}

Describes all push-constant data ranges used by a pipeline.

In wgpu 29 only the total byte size matters at pipeline-creation time (set via wgpu::PipelineLayoutDescriptor::immediate_size). The per-range breakdown is kept here for documentation and validation purposes.

Invariants

All ranges must individually satisfy PushConstantRange::validate, and total_size must equal end of the last range (or the extent of all non-overlapping ranges combined).

Fields

ranges: Vec<PushConstantRange>

Individual data ranges (may overlap in theory, though callers should keep them distinct for clarity).

total_size: u32

Total number of bytes reserved in the immediate-data block. Must be 4-byte aligned and ≤ MAX_PUSH_CONSTANTS_SIZE_BYTES.

Implementations

impl PushConstantsLayout

pub fn compute_only(size: u32) -> Self

Create a layout with a single compute-only range covering [0, size).

Examples

use oxigdal_gpu::push_constants::PushConstantsLayout;

let l = PushConstantsLayout::compute_only(64);
assert_eq!(l.total_size, 64);
assert_eq!(l.ranges.len(), 1);
assert!(l.validate().is_ok());

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

Validate all contained ranges.

Errors

Propagates the first validation error from any constituent PushConstantRange::validate call. Also returns an error when total_size exceeds MAX_PUSH_CONSTANTS_SIZE_BYTES or is not 4-byte aligned.

pub fn immediate_size_for_wgpu(&self) -> u32

Return the immediate_size value to pass to wgpu::PipelineLayoutDescriptor.

This is simply self.total_size.

pub fn to_wgpu_ranges(&self) -> Vec<PushConstantRangeDesc>

Convert all ranges to a vector of descriptive strings (for logging).

Trait Implementations

impl Clone for PushConstantsLayout

fn clone(&self) -> PushConstantsLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PushConstantsLayout

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

Formats the value using the given formatter.