use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::OpState;
use deno_core::Resource;
use deno_core::ResourceId;
use serde::Deserialize;
use std::borrow::Cow;
use std::rc::Rc;
use super::error::WebGpuResult;
pub(crate) struct WebGpuBindGroupLayout(
pub(crate) crate::Instance,
pub(crate) wgpu_core::id::BindGroupLayoutId,
);
impl Resource for WebGpuBindGroupLayout {
fn name(&self) -> Cow<str> {
"webGPUBindGroupLayout".into()
}
fn close(self: Rc<Self>) {
let instance = &self.0;
gfx_select!(self.1 => instance.bind_group_layout_drop(self.1));
}
}
pub(crate) struct WebGpuBindGroup(
pub(crate) crate::Instance,
pub(crate) wgpu_core::id::BindGroupId,
);
impl Resource for WebGpuBindGroup {
fn name(&self) -> Cow<str> {
"webGPUBindGroup".into()
}
fn close(self: Rc<Self>) {
let instance = &self.0;
gfx_select!(self.1 => instance.bind_group_drop(self.1));
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct GpuBufferBindingLayout {
r#type: GpuBufferBindingType,
has_dynamic_offset: bool,
min_binding_size: u64,
}
#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
enum GpuBufferBindingType {
Uniform,
Storage,
ReadOnlyStorage,
}
impl From<GpuBufferBindingType> for wgpu_types::BufferBindingType {
fn from(binding_type: GpuBufferBindingType) -> Self {
match binding_type {
GpuBufferBindingType::Uniform => wgpu_types::BufferBindingType::Uniform,
GpuBufferBindingType::Storage => {
wgpu_types::BufferBindingType::Storage { read_only: false }
}
GpuBufferBindingType::ReadOnlyStorage => {
wgpu_types::BufferBindingType::Storage { read_only: true }
}
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct GpuSamplerBindingLayout {
r#type: wgpu_types::SamplerBindingType,
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct GpuTextureBindingLayout {
sample_type: GpuTextureSampleType,
view_dimension: wgpu_types::TextureViewDimension,
multisampled: bool,
}
#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
enum GpuTextureSampleType {
Float,
UnfilterableFloat,
Depth,
Sint,
Uint,
}
impl From<GpuTextureSampleType> for wgpu_types::TextureSampleType {
fn from(sample_type: GpuTextureSampleType) -> Self {
match sample_type {
GpuTextureSampleType::Float => {
wgpu_types::TextureSampleType::Float { filterable: true }
}
GpuTextureSampleType::UnfilterableFloat => {
wgpu_types::TextureSampleType::Float { filterable: false }
}
GpuTextureSampleType::Depth => wgpu_types::TextureSampleType::Depth,
GpuTextureSampleType::Sint => wgpu_types::TextureSampleType::Sint,
GpuTextureSampleType::Uint => wgpu_types::TextureSampleType::Uint,
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct GpuStorageTextureBindingLayout {
access: GpuStorageTextureAccess,
format: wgpu_types::TextureFormat,
view_dimension: wgpu_types::TextureViewDimension,
}
#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
enum GpuStorageTextureAccess {
WriteOnly,
}
impl From<GpuStorageTextureAccess> for wgpu_types::StorageTextureAccess {
fn from(access: GpuStorageTextureAccess) -> Self {
match access {
GpuStorageTextureAccess::WriteOnly => {
wgpu_types::StorageTextureAccess::WriteOnly
}
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct GpuBindGroupLayoutEntry {
binding: u32,
visibility: u32,
#[serde(flatten)]
binding_type: GpuBindingType,
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
enum GpuBindingType {
Buffer(GpuBufferBindingLayout),
Sampler(GpuSamplerBindingLayout),
Texture(GpuTextureBindingLayout),
StorageTexture(GpuStorageTextureBindingLayout),
}
impl From<GpuBindingType> for wgpu_types::BindingType {
fn from(binding_type: GpuBindingType) -> wgpu_types::BindingType {
match binding_type {
GpuBindingType::Buffer(buffer) => wgpu_types::BindingType::Buffer {
ty: buffer.r#type.into(),
has_dynamic_offset: buffer.has_dynamic_offset,
min_binding_size: std::num::NonZeroU64::new(buffer.min_binding_size),
},
GpuBindingType::Sampler(sampler) => {
wgpu_types::BindingType::Sampler(sampler.r#type)
}
GpuBindingType::Texture(texture) => wgpu_types::BindingType::Texture {
sample_type: texture.sample_type.into(),
view_dimension: texture.view_dimension,
multisampled: texture.multisampled,
},
GpuBindingType::StorageTexture(storage_texture) => {
wgpu_types::BindingType::StorageTexture {
access: storage_texture.access.into(),
format: storage_texture.format,
view_dimension: storage_texture.view_dimension,
}
}
}
}
}
#[op2]
#[serde]
pub fn op_webgpu_create_bind_group_layout(
state: &mut OpState,
#[smi] device_rid: ResourceId,
#[string] label: Cow<str>,
#[serde] entries: Vec<GpuBindGroupLayoutEntry>,
) -> Result<WebGpuResult, AnyError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(device_rid)?;
let device = device_resource.1;
let entries = entries
.into_iter()
.map(|entry| {
wgpu_types::BindGroupLayoutEntry {
binding: entry.binding,
visibility: wgpu_types::ShaderStages::from_bits(entry.visibility)
.unwrap(),
ty: entry.binding_type.into(),
count: None, }
})
.collect::<Vec<_>>();
let descriptor = wgpu_core::binding_model::BindGroupLayoutDescriptor {
label: Some(label),
entries: Cow::from(entries),
};
gfx_put!(device => instance.device_create_bind_group_layout(
device,
&descriptor,
()
) => state, WebGpuBindGroupLayout)
}
#[op2]
#[serde]
pub fn op_webgpu_create_pipeline_layout(
state: &mut OpState,
#[smi] device_rid: ResourceId,
#[string] label: Cow<str>,
#[serde] bind_group_layouts: Vec<u32>,
) -> Result<WebGpuResult, AnyError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(device_rid)?;
let device = device_resource.1;
let bind_group_layouts = bind_group_layouts
.into_iter()
.map(|rid| {
let bind_group_layout =
state.resource_table.get::<WebGpuBindGroupLayout>(rid)?;
Ok(bind_group_layout.1)
})
.collect::<Result<Vec<_>, AnyError>>()?;
let descriptor = wgpu_core::binding_model::PipelineLayoutDescriptor {
label: Some(label),
bind_group_layouts: Cow::from(bind_group_layouts),
push_constant_ranges: Default::default(),
};
gfx_put!(device => instance.device_create_pipeline_layout(
device,
&descriptor,
()
) => state, super::pipeline::WebGpuPipelineLayout)
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct GpuBindGroupEntry {
binding: u32,
kind: String,
resource: ResourceId,
offset: Option<u64>,
size: Option<u64>,
}
#[op2]
#[serde]
pub fn op_webgpu_create_bind_group(
state: &mut OpState,
#[smi] device_rid: ResourceId,
#[string] label: Cow<str>,
#[smi] layout: ResourceId,
#[serde] entries: Vec<GpuBindGroupEntry>,
) -> Result<WebGpuResult, AnyError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(device_rid)?;
let device = device_resource.1;
let entries = entries
.into_iter()
.map(|entry| {
Ok(wgpu_core::binding_model::BindGroupEntry {
binding: entry.binding,
resource: match entry.kind.as_str() {
"GPUSampler" => {
let sampler_resource =
state
.resource_table
.get::<super::sampler::WebGpuSampler>(entry.resource)?;
wgpu_core::binding_model::BindingResource::Sampler(
sampler_resource.1,
)
}
"GPUTextureView" => {
let texture_view_resource =
state
.resource_table
.get::<super::texture::WebGpuTextureView>(entry.resource)?;
wgpu_core::binding_model::BindingResource::TextureView(
texture_view_resource.1,
)
}
"GPUBufferBinding" => {
let buffer_resource =
state
.resource_table
.get::<super::buffer::WebGpuBuffer>(entry.resource)?;
wgpu_core::binding_model::BindingResource::Buffer(
wgpu_core::binding_model::BufferBinding {
buffer_id: buffer_resource.1,
offset: entry.offset.unwrap_or(0),
size: std::num::NonZeroU64::new(entry.size.unwrap_or(0)),
},
)
}
_ => unreachable!(),
},
})
})
.collect::<Result<Vec<_>, AnyError>>()?;
let bind_group_layout =
state.resource_table.get::<WebGpuBindGroupLayout>(layout)?;
let descriptor = wgpu_core::binding_model::BindGroupDescriptor {
label: Some(label),
layout: bind_group_layout.1,
entries: Cow::from(entries),
};
gfx_put!(device => instance.device_create_bind_group(
device,
&descriptor,
()
) => state, WebGpuBindGroup)
}