Struct EntryPoint 

struct EntryPoint {
    inputs: Vec<Varying>,
    outputs: Vec<Varying>,
    resources: Vec<Handle<Resource>>,
    sampling_pairs: FastHashSet<(Handle<Resource>, Handle<Resource>)>,
    workgroup_size: [u32; 3],
    dual_source_blending: bool,
    task_payload_size: Option<u32>,
    mesh_info: Option<EntryPointMeshInfo>,
    immediate_usage: ImmediateUsage,
}

The shader interface of an entry point in a [naga::Module].

Fields

inputs: Vec<Varying>

The builtin and user-defined values passed to the entry point.

In WGSL, these can be either passed directly as arguments or gathered up in structs that are passed; here, they are all flattened out.

outputs: Vec<Varying>

The builtin and user-defined values returned by the entry point.

In WGSL, a function either returns a single varying directly, or returns a struct of varyings; here, they are all flattened out.

For mesh shaders, this also includes the vertex and primitive outputs.

resources: Vec<Handle<Resource>>

This entry point’s resource interface.

This lists all the bound resources (that is, global variables with @group and @binding attributes) that this entry point statically uses.

Handles here refer to elements of Interface::resources.

sampling_pairs: FastHashSet<(Handle<Resource>, Handle<Resource>)>

Pairs of (texture, sampler) handles that this entry point uses together.

This is the same information that Naga provides in [naga::valid::FunctionInfo::sampling_set] (used for generating GLSL), but adjusted to use handles referring to Interface::resources.

workgroup_size: [u32; 3]

This entry point’s workgroup size, if it is a compute-like shader (compute, task, or mesh).

For non-compute-like entry points, this is [0, 0, 0].

dual_source_blending: bool

Indicates that the entry point uses dual source blending.

task_payload_size: Option<u32>

For task shaders and mesh shaders, the size of the task payload global they use to communicate.

mesh_info: Option<EntryPointMeshInfo>

Additional information for mesh shader entry points.

immediate_usage: ImmediateUsage

Size of the immediate data, and which slots this entry point uses.

Trait Implementations

impl Debug for EntryPoint

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

Formats the value using the given formatter.

impl Default for EntryPoint

fn default() -> EntryPoint

Returns the “default value” for a type.