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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#![allow(unsafe_code)]
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::EventBinding::EventInit;
use crate::dom::bindings::codegen::Bindings::EventTargetBinding::EventTargetMethods;
use crate::dom::bindings::codegen::Bindings::GPUAdapterBinding::GPULimits;
use crate::dom::bindings::codegen::Bindings::GPUBindGroupBinding::{
GPUBindGroupDescriptor, GPUBindingResource,
};
use crate::dom::bindings::codegen::Bindings::GPUBindGroupLayoutBinding::{
GPUBindGroupLayoutDescriptor, GPUBindingType,
};
use crate::dom::bindings::codegen::Bindings::GPUBufferBinding::GPUBufferDescriptor;
use crate::dom::bindings::codegen::Bindings::GPUComputePipelineBinding::GPUComputePipelineDescriptor;
use crate::dom::bindings::codegen::Bindings::GPUDeviceBinding::{
GPUCommandEncoderDescriptor, GPUDeviceMethods,
};
use crate::dom::bindings::codegen::Bindings::GPUObjectBaseBinding::GPUObjectDescriptorBase;
use crate::dom::bindings::codegen::Bindings::GPUPipelineLayoutBinding::GPUPipelineLayoutDescriptor;
use crate::dom::bindings::codegen::Bindings::GPURenderBundleEncoderBinding::GPURenderBundleEncoderDescriptor;
use crate::dom::bindings::codegen::Bindings::GPURenderPipelineBinding::{
GPUBlendDescriptor, GPUBlendFactor, GPUBlendOperation, GPUCullMode, GPUFrontFace,
GPUIndexFormat, GPUInputStepMode, GPUPrimitiveTopology, GPURenderPipelineDescriptor,
GPUStencilOperation, GPUVertexFormat,
};
use crate::dom::bindings::codegen::Bindings::GPUSamplerBinding::{
GPUAddressMode, GPUCompareFunction, GPUFilterMode, GPUSamplerDescriptor,
};
use crate::dom::bindings::codegen::Bindings::GPUShaderModuleBinding::GPUShaderModuleDescriptor;
use crate::dom::bindings::codegen::Bindings::GPUTextureBinding::{
GPUExtent3D, GPUExtent3DDict, GPUTextureComponentType, GPUTextureDescriptor,
GPUTextureDimension, GPUTextureFormat,
};
use crate::dom::bindings::codegen::Bindings::GPUTextureViewBinding::GPUTextureViewDimension;
use crate::dom::bindings::codegen::Bindings::GPUUncapturedErrorEventBinding::GPUUncapturedErrorEventInit;
use crate::dom::bindings::codegen::Bindings::GPUValidationErrorBinding::{
GPUError, GPUErrorFilter,
};
use crate::dom::bindings::codegen::UnionTypes::Uint32ArrayOrString;
use crate::dom::bindings::error::Error;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::str::{DOMString, USVString};
use crate::dom::bindings::trace::RootedTraceableBox;
use crate::dom::eventtarget::EventTarget;
use crate::dom::globalscope::GlobalScope;
use crate::dom::gpuadapter::GPUAdapter;
use crate::dom::gpubindgroup::GPUBindGroup;
use crate::dom::gpubindgrouplayout::GPUBindGroupLayout;
use crate::dom::gpubuffer::{GPUBuffer, GPUBufferMapInfo, GPUBufferState};
use crate::dom::gpucommandencoder::GPUCommandEncoder;
use crate::dom::gpucomputepipeline::GPUComputePipeline;
use crate::dom::gpuoutofmemoryerror::GPUOutOfMemoryError;
use crate::dom::gpupipelinelayout::GPUPipelineLayout;
use crate::dom::gpuqueue::GPUQueue;
use crate::dom::gpurenderbundleencoder::GPURenderBundleEncoder;
use crate::dom::gpurenderpipeline::GPURenderPipeline;
use crate::dom::gpusampler::GPUSampler;
use crate::dom::gpushadermodule::GPUShaderModule;
use crate::dom::gputexture::GPUTexture;
use crate::dom::gpuuncapturederrorevent::GPUUncapturedErrorEvent;
use crate::dom::gpuvalidationerror::GPUValidationError;
use crate::dom::promise::Promise;
use crate::realms::InRealm;
use crate::script_runtime::JSContext as SafeJSContext;
use dom_struct::dom_struct;
use js::jsapi::{Heap, JSObject};
use std::borrow::Cow;
use std::cell::{Cell, RefCell};
use std::collections::HashMap;
use std::ptr::NonNull;
use std::rc::Rc;
use webgpu::wgpu::{
binding_model as wgpu_bind, command as wgpu_com,
id::{BindGroupLayoutId, PipelineLayoutId},
pipeline as wgpu_pipe, resource as wgpu_res,
};
use webgpu::{self, identity::WebGPUOpResult, wgt, ErrorScopeId, WebGPU, WebGPURequest};
#[derive(JSTraceable, MallocSizeOf)]
struct ErrorScopeInfo {
op_count: u64,
#[ignore_malloc_size_of = "Because it is non-owning"]
error: Option<GPUError>,
#[ignore_malloc_size_of = "promises are hard"]
promise: Option<Rc<Promise>>,
}
#[derive(JSTraceable, MallocSizeOf)]
struct ErrorScopeMetadata {
id: ErrorScopeId,
filter: GPUErrorFilter,
popped: Cell<bool>,
}
#[derive(JSTraceable, MallocSizeOf)]
struct ScopeContext {
error_scopes: HashMap<ErrorScopeId, ErrorScopeInfo>,
scope_stack: Vec<ErrorScopeMetadata>,
next_scope_id: ErrorScopeId,
}
#[dom_struct]
pub struct GPUDevice {
eventtarget: EventTarget,
#[ignore_malloc_size_of = "channels are hard"]
channel: WebGPU,
adapter: Dom<GPUAdapter>,
#[ignore_malloc_size_of = "mozjs"]
extensions: Heap<*mut JSObject>,
#[ignore_malloc_size_of = "mozjs"]
limits: Heap<*mut JSObject>,
label: DomRefCell<Option<USVString>>,
device: webgpu::WebGPUDevice,
default_queue: Dom<GPUQueue>,
scope_context: DomRefCell<ScopeContext>,
#[ignore_malloc_size_of = "promises are hard"]
lost_promise: DomRefCell<Option<Rc<Promise>>>,
}
impl GPUDevice {
fn new_inherited(
channel: WebGPU,
adapter: &GPUAdapter,
extensions: Heap<*mut JSObject>,
limits: Heap<*mut JSObject>,
device: webgpu::WebGPUDevice,
queue: &GPUQueue,
label: Option<String>,
) -> Self {
Self {
eventtarget: EventTarget::new_inherited(),
channel,
adapter: Dom::from_ref(adapter),
extensions,
limits,
label: DomRefCell::new(label.map(|l| USVString::from(l))),
device,
default_queue: Dom::from_ref(queue),
scope_context: DomRefCell::new(ScopeContext {
error_scopes: HashMap::new(),
scope_stack: Vec::new(),
next_scope_id: ErrorScopeId::new(1).unwrap(),
}),
lost_promise: DomRefCell::new(None),
}
}
pub fn new(
global: &GlobalScope,
channel: WebGPU,
adapter: &GPUAdapter,
extensions: Heap<*mut JSObject>,
limits: Heap<*mut JSObject>,
device: webgpu::WebGPUDevice,
queue: webgpu::WebGPUQueue,
label: Option<String>,
) -> DomRoot<Self> {
let queue = GPUQueue::new(global, channel.clone(), queue);
let device = reflect_dom_object(
Box::new(GPUDevice::new_inherited(
channel, adapter, extensions, limits, device, &queue, label,
)),
global,
);
queue.set_device(&*device);
device
}
}
impl GPUDevice {
pub fn id(&self) -> webgpu::WebGPUDevice {
self.device
}
pub fn handle_server_msg(&self, scope: Option<ErrorScopeId>, result: WebGPUOpResult) {
let result = match result {
WebGPUOpResult::Success => Ok(()),
WebGPUOpResult::ValidationError(m) => {
let val_err = GPUValidationError::new(&self.global(), DOMString::from_string(m));
Err((
GPUError::GPUValidationError(val_err),
GPUErrorFilter::Validation,
))
},
WebGPUOpResult::OutOfMemoryError => {
let oom_err = GPUOutOfMemoryError::new(&self.global());
Err((
GPUError::GPUOutOfMemoryError(oom_err),
GPUErrorFilter::Out_of_memory,
))
},
};
if let Some(s_id) = scope {
if let Err((err, filter)) = result {
let scop = self
.scope_context
.borrow()
.scope_stack
.iter()
.rev()
.find(|meta| meta.id <= s_id && meta.filter == filter)
.map(|meta| meta.id);
if let Some(s) = scop {
self.handle_error(s, err);
} else {
self.fire_uncaptured_error(err);
}
}
self.try_remove_scope(s_id);
} else {
if let Err((err, _)) = result {
self.fire_uncaptured_error(err);
}
}
}
fn handle_error(&self, scope: ErrorScopeId, error: GPUError) {
let mut context = self.scope_context.borrow_mut();
if let Some(mut err_scope) = context.error_scopes.get_mut(&scope) {
if err_scope.error.is_none() {
err_scope.error = Some(error);
}
} else {
warn!("Could not find ErrorScope with Id({})", scope);
}
}
fn try_remove_scope(&self, scope: ErrorScopeId) {
let mut context = self.scope_context.borrow_mut();
let remove = if let Some(mut err_scope) = context.error_scopes.get_mut(&scope) {
err_scope.op_count -= 1;
if let Some(ref promise) = err_scope.promise {
if !promise.is_fulfilled() {
if let Some(ref e) = err_scope.error {
promise.resolve_native(e);
} else if err_scope.op_count == 0 {
promise.resolve_native(&None::<GPUError>);
}
}
}
err_scope.op_count == 0 && err_scope.promise.is_some()
} else {
warn!("Could not find ErrorScope with Id({})", scope);
false
};
if remove {
let _ = context.error_scopes.remove(&scope);
context.scope_stack.retain(|meta| meta.id != scope);
}
}
fn fire_uncaptured_error(&self, err: GPUError) {
let ev = GPUUncapturedErrorEvent::new(
&self.global(),
DOMString::from("uncapturederror"),
&GPUUncapturedErrorEventInit {
error: err,
parent: EventInit::empty(),
},
);
let _ = self.eventtarget.DispatchEvent(ev.event());
}
pub fn use_current_scope(&self) -> Option<ErrorScopeId> {
let mut context = self.scope_context.borrow_mut();
let scope_id = context
.scope_stack
.iter()
.rev()
.find(|meta| !meta.popped.get())
.map(|meta| meta.id);
scope_id.and_then(|s_id| {
context.error_scopes.get_mut(&s_id).map(|mut scope| {
scope.op_count += 1;
s_id
})
})
}
fn get_pipeline_layout_data(
&self,
layout: &Option<DomRoot<GPUPipelineLayout>>,
) -> (
Option<PipelineLayoutId>,
Option<(PipelineLayoutId, Vec<BindGroupLayoutId>)>,
Vec<webgpu::WebGPUBindGroupLayout>,
) {
if let Some(ref layout) = layout {
(Some(layout.id().0), None, layout.bind_group_layouts())
} else {
let layout_id = self
.global()
.wgpu_id_hub()
.lock()
.create_pipeline_layout_id(self.device.0.backend());
let max_bind_grps = GPULimits::empty().maxBindGroups;
let mut bgls = Vec::with_capacity(max_bind_grps as usize);
let mut bgl_ids = Vec::with_capacity(max_bind_grps as usize);
for _ in 0..max_bind_grps {
let bgl = self
.global()
.wgpu_id_hub()
.lock()
.create_bind_group_layout_id(self.device.0.backend());
bgls.push(webgpu::WebGPUBindGroupLayout(bgl));
bgl_ids.push(bgl);
}
(None, Some((layout_id, bgl_ids)), bgls)
}
}
}
impl GPUDeviceMethods for GPUDevice {
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-adapter
fn Adapter(&self) -> DomRoot<GPUAdapter> {
DomRoot::from_ref(&self.adapter)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-extensions
fn Extensions(&self, _cx: SafeJSContext) -> NonNull<JSObject> {
NonNull::new(self.extensions.get()).unwrap()
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-limits
fn Limits(&self, _cx: SafeJSContext) -> NonNull<JSObject> {
NonNull::new(self.extensions.get()).unwrap()
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-defaultqueue
fn DefaultQueue(&self) -> DomRoot<GPUQueue> {
DomRoot::from_ref(&self.default_queue)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn GetLabel(&self) -> Option<USVString> {
self.label.borrow().clone()
}
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn SetLabel(&self, value: Option<USVString>) {
*self.label.borrow_mut() = value;
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-lost
fn Lost(&self, comp: InRealm) -> Rc<Promise> {
let promise = Promise::new_in_current_realm(&self.global(), comp);
*self.lost_promise.borrow_mut() = Some(promise.clone());
promise
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createbuffer
fn CreateBuffer(&self, descriptor: &GPUBufferDescriptor) -> DomRoot<GPUBuffer> {
let desc =
wgt::BufferUsage::from_bits(descriptor.usage).map(|usg| wgpu_res::BufferDescriptor {
label: convert_label(&descriptor.parent),
size: descriptor.size as wgt::BufferAddress,
usage: usg,
mapped_at_creation: descriptor.mappedAtCreation,
});
let id = self
.global()
.wgpu_id_hub()
.lock()
.create_buffer_id(self.device.0.backend());
let scope_id = self.use_current_scope();
if desc.is_none() {
self.handle_server_msg(
scope_id,
WebGPUOpResult::ValidationError(String::from("Invalid GPUBufferUsage")),
);
}
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateBuffer {
device_id: self.device.0,
buffer_id: id,
descriptor: desc,
},
))
.expect("Failed to create WebGPU buffer");
let buffer = webgpu::WebGPUBuffer(id);
let map_info;
let state;
if descriptor.mappedAtCreation {
let buf_data = vec![0u8; descriptor.size as usize];
map_info = DomRefCell::new(Some(GPUBufferMapInfo {
mapping: Rc::new(RefCell::new(buf_data)),
mapping_range: 0..descriptor.size,
mapped_ranges: Vec::new(),
js_buffers: Vec::new(),
map_mode: None,
}));
state = GPUBufferState::MappedAtCreation;
} else {
map_info = DomRefCell::new(None);
state = GPUBufferState::Unmapped;
}
GPUBuffer::new(
&self.global(),
self.channel.clone(),
buffer,
&self,
state,
descriptor.size,
map_info,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#GPUDevice-createBindGroupLayout
#[allow(non_snake_case)]
fn CreateBindGroupLayout(
&self,
descriptor: &GPUBindGroupLayoutDescriptor,
) -> DomRoot<GPUBindGroupLayout> {
let mut valid = true;
let entries = descriptor
.entries
.iter()
.map(|bind| {
let visibility = match wgt::ShaderStage::from_bits(bind.visibility) {
Some(visibility) => visibility,
None => {
valid = false;
wgt::ShaderStage::empty()
},
};
let ty = match bind.type_ {
GPUBindingType::Uniform_buffer => wgt::BindingType::UniformBuffer {
dynamic: bind.hasDynamicOffset,
min_binding_size: wgt::BufferSize::new(bind.minBufferBindingSize),
},
GPUBindingType::Storage_buffer => wgt::BindingType::StorageBuffer {
dynamic: bind.hasDynamicOffset,
min_binding_size: wgt::BufferSize::new(bind.minBufferBindingSize),
readonly: false,
},
GPUBindingType::Readonly_storage_buffer => wgt::BindingType::StorageBuffer {
dynamic: bind.hasDynamicOffset,
min_binding_size: wgt::BufferSize::new(bind.minBufferBindingSize),
readonly: true,
},
GPUBindingType::Sampled_texture => wgt::BindingType::SampledTexture {
dimension: bind
.viewDimension
.map_or(wgt::TextureViewDimension::D2, |v| {
convert_texture_view_dimension(v)
}),
component_type: if let Some(c) = bind.textureComponentType {
match c {
GPUTextureComponentType::Float => wgt::TextureComponentType::Float,
GPUTextureComponentType::Sint => wgt::TextureComponentType::Sint,
GPUTextureComponentType::Uint => wgt::TextureComponentType::Uint,
}
} else {
wgt::TextureComponentType::Float
},
multisampled: bind.multisampled,
},
GPUBindingType::Readonly_storage_texture => wgt::BindingType::StorageTexture {
dimension: bind
.viewDimension
.map_or(wgt::TextureViewDimension::D2, |v| {
convert_texture_view_dimension(v)
}),
format: bind
.storageTextureFormat
.map_or(wgt::TextureFormat::Bgra8UnormSrgb, |f| {
convert_texture_format(f)
}),
readonly: true,
},
GPUBindingType::Writeonly_storage_texture => wgt::BindingType::StorageTexture {
dimension: bind
.viewDimension
.map_or(wgt::TextureViewDimension::D2, |v| {
convert_texture_view_dimension(v)
}),
format: bind
.storageTextureFormat
.map_or(wgt::TextureFormat::Bgra8UnormSrgb, |f| {
convert_texture_format(f)
}),
readonly: true,
},
GPUBindingType::Sampler => wgt::BindingType::Sampler { comparison: false },
GPUBindingType::Comparison_sampler => {
wgt::BindingType::Sampler { comparison: true }
},
};
wgt::BindGroupLayoutEntry {
binding: bind.binding,
visibility: visibility,
ty,
count: None,
}
})
.collect::<Vec<_>>();
let scope_id = self.use_current_scope();
let desc = if valid {
Some(wgpu_bind::BindGroupLayoutDescriptor {
label: convert_label(&descriptor.parent),
entries: Cow::Owned(entries),
})
} else {
self.handle_server_msg(
scope_id,
WebGPUOpResult::ValidationError(String::from("Invalid GPUShaderStage")),
);
None
};
let bind_group_layout_id = self
.global()
.wgpu_id_hub()
.lock()
.create_bind_group_layout_id(self.device.0.backend());
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateBindGroupLayout {
device_id: self.device.0,
bind_group_layout_id,
descriptor: desc,
},
))
.expect("Failed to create WebGPU BindGroupLayout");
let bgl = webgpu::WebGPUBindGroupLayout(bind_group_layout_id);
GPUBindGroupLayout::new(
&self.global(),
bgl,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createpipelinelayout
fn CreatePipelineLayout(
&self,
descriptor: &GPUPipelineLayoutDescriptor,
) -> DomRoot<GPUPipelineLayout> {
let desc = wgpu_bind::PipelineLayoutDescriptor {
label: convert_label(&descriptor.parent),
bind_group_layouts: Cow::Owned(
descriptor
.bindGroupLayouts
.iter()
.map(|each| each.id().0)
.collect::<Vec<_>>(),
),
push_constant_ranges: Cow::Owned(vec![]),
};
let scope_id = self.use_current_scope();
let pipeline_layout_id = self
.global()
.wgpu_id_hub()
.lock()
.create_pipeline_layout_id(self.device.0.backend());
self.channel
.0
.send((
scope_id,
WebGPURequest::CreatePipelineLayout {
device_id: self.device.0,
pipeline_layout_id,
descriptor: desc,
},
))
.expect("Failed to create WebGPU PipelineLayout");
let bgls = descriptor
.bindGroupLayouts
.iter()
.map(|each| each.id())
.collect::<Vec<_>>();
let pipeline_layout = webgpu::WebGPUPipelineLayout(pipeline_layout_id);
GPUPipelineLayout::new(
&self.global(),
pipeline_layout,
descriptor.parent.label.as_ref().cloned(),
bgls,
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createbindgroup
fn CreateBindGroup(&self, descriptor: &GPUBindGroupDescriptor) -> DomRoot<GPUBindGroup> {
let entries = descriptor
.entries
.iter()
.map(|bind| wgpu_bind::BindGroupEntry {
binding: bind.binding,
resource: match bind.resource {
GPUBindingResource::GPUSampler(ref s) => {
wgpu_bind::BindingResource::Sampler(s.id().0)
},
GPUBindingResource::GPUTextureView(ref t) => {
wgpu_bind::BindingResource::TextureView(t.id().0)
},
GPUBindingResource::GPUBufferBindings(ref b) => {
wgpu_bind::BindingResource::Buffer(wgpu_bind::BufferBinding {
buffer_id: b.buffer.id().0,
offset: b.offset,
size: b.size.and_then(wgt::BufferSize::new),
})
},
},
})
.collect::<Vec<_>>();
let desc = wgpu_bind::BindGroupDescriptor {
label: convert_label(&descriptor.parent),
layout: descriptor.layout.id().0,
entries: Cow::Owned(entries),
};
let scope_id = self.use_current_scope();
let bind_group_id = self
.global()
.wgpu_id_hub()
.lock()
.create_bind_group_id(self.device.0.backend());
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateBindGroup {
device_id: self.device.0,
bind_group_id,
descriptor: desc,
},
))
.expect("Failed to create WebGPU BindGroup");
let bind_group = webgpu::WebGPUBindGroup(bind_group_id);
GPUBindGroup::new(
&self.global(),
bind_group,
self.device,
&*descriptor.layout,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createshadermodule
fn CreateShaderModule(
&self,
descriptor: RootedTraceableBox<GPUShaderModuleDescriptor>,
) -> DomRoot<GPUShaderModule> {
let program: Vec<u32> = match &descriptor.code {
Uint32ArrayOrString::Uint32Array(program) => program.to_vec(),
Uint32ArrayOrString::String(program) => {
program.chars().map(|c| c as u32).collect::<Vec<u32>>()
},
};
let program_id = self
.global()
.wgpu_id_hub()
.lock()
.create_shader_module_id(self.device.0.backend());
let scope_id = self.use_current_scope();
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateShaderModule {
device_id: self.device.0,
program_id,
program,
},
))
.expect("Failed to create WebGPU ShaderModule");
let shader_module = webgpu::WebGPUShaderModule(program_id);
GPUShaderModule::new(
&self.global(),
shader_module,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createcomputepipeline
fn CreateComputePipeline(
&self,
descriptor: &GPUComputePipelineDescriptor,
) -> DomRoot<GPUComputePipeline> {
let compute_pipeline_id = self
.global()
.wgpu_id_hub()
.lock()
.create_compute_pipeline_id(self.device.0.backend());
let scope_id = self.use_current_scope();
let (layout, implicit_ids, bgls) = self.get_pipeline_layout_data(&descriptor.parent.layout);
let desc = wgpu_pipe::ComputePipelineDescriptor {
label: convert_label(&descriptor.parent.parent),
layout,
compute_stage: wgpu_pipe::ProgrammableStageDescriptor {
module: descriptor.computeStage.module.id().0,
entry_point: Cow::Owned(descriptor.computeStage.entryPoint.to_string()),
},
};
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateComputePipeline {
device_id: self.device.0,
compute_pipeline_id,
descriptor: desc,
implicit_ids,
},
))
.expect("Failed to create WebGPU ComputePipeline");
let compute_pipeline = webgpu::WebGPUComputePipeline(compute_pipeline_id);
GPUComputePipeline::new(
&self.global(),
compute_pipeline,
descriptor.parent.parent.label.as_ref().cloned(),
bgls,
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createcommandencoder
fn CreateCommandEncoder(
&self,
descriptor: &GPUCommandEncoderDescriptor,
) -> DomRoot<GPUCommandEncoder> {
let command_encoder_id = self
.global()
.wgpu_id_hub()
.lock()
.create_command_encoder_id(self.device.0.backend());
let scope_id = self.use_current_scope();
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateCommandEncoder {
device_id: self.device.0,
command_encoder_id,
label: convert_label(&descriptor.parent),
},
))
.expect("Failed to create WebGPU command encoder");
let encoder = webgpu::WebGPUCommandEncoder(command_encoder_id);
GPUCommandEncoder::new(
&self.global(),
self.channel.clone(),
&self,
encoder,
true,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createtexture
fn CreateTexture(&self, descriptor: &GPUTextureDescriptor) -> DomRoot<GPUTexture> {
let size = convert_texture_size_to_dict(&descriptor.size);
let desc =
wgt::TextureUsage::from_bits(descriptor.usage).map(|usg| wgpu_res::TextureDescriptor {
label: convert_label(&descriptor.parent),
size: convert_texture_size_to_wgt(&size),
mip_level_count: descriptor.mipLevelCount,
sample_count: descriptor.sampleCount,
dimension: match descriptor.dimension {
GPUTextureDimension::_1d => wgt::TextureDimension::D1,
GPUTextureDimension::_2d => wgt::TextureDimension::D2,
GPUTextureDimension::_3d => wgt::TextureDimension::D3,
},
format: convert_texture_format(descriptor.format),
usage: usg,
});
let texture_id = self
.global()
.wgpu_id_hub()
.lock()
.create_texture_id(self.device.0.backend());
let scope_id = self.use_current_scope();
if desc.is_none() {
self.handle_server_msg(
scope_id,
WebGPUOpResult::ValidationError(String::from("Invalid GPUTextureUsage")),
);
}
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateTexture {
device_id: self.device.0,
texture_id,
descriptor: desc,
},
))
.expect("Failed to create WebGPU Texture");
let texture = webgpu::WebGPUTexture(texture_id);
GPUTexture::new(
&self.global(),
texture,
&self,
self.channel.clone(),
size,
descriptor.mipLevelCount,
descriptor.sampleCount,
descriptor.dimension,
descriptor.format,
descriptor.usage,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createsampler
fn CreateSampler(&self, descriptor: &GPUSamplerDescriptor) -> DomRoot<GPUSampler> {
let sampler_id = self
.global()
.wgpu_id_hub()
.lock()
.create_sampler_id(self.device.0.backend());
let compare_enable = descriptor.compare.is_some();
let desc = wgpu_res::SamplerDescriptor {
label: convert_label(&descriptor.parent),
address_modes: [
convert_address_mode(descriptor.addressModeU),
convert_address_mode(descriptor.addressModeV),
convert_address_mode(descriptor.addressModeW),
],
mag_filter: convert_filter_mode(descriptor.magFilter),
min_filter: convert_filter_mode(descriptor.minFilter),
mipmap_filter: convert_filter_mode(descriptor.mipmapFilter),
lod_min_clamp: *descriptor.lodMinClamp,
lod_max_clamp: *descriptor.lodMaxClamp,
compare: descriptor.compare.map(|c| convert_compare_function(c)),
anisotropy_clamp: None,
..Default::default()
};
let scope_id = self.use_current_scope();
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateSampler {
device_id: self.device.0,
sampler_id,
descriptor: desc,
},
))
.expect("Failed to create WebGPU sampler");
let sampler = webgpu::WebGPUSampler(sampler_id);
GPUSampler::new(
&self.global(),
self.device,
compare_enable,
sampler,
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createrenderpipeline
fn CreateRenderPipeline(
&self,
descriptor: &GPURenderPipelineDescriptor,
) -> DomRoot<GPURenderPipeline> {
let ref rs_desc = descriptor.rasterizationState;
let ref vs_desc = descriptor.vertexState;
let scope_id = self.use_current_scope();
let mut valid = true;
let color_states = Cow::Owned(
descriptor
.colorStates
.iter()
.map(|state| wgt::ColorStateDescriptor {
format: convert_texture_format(state.format),
alpha_blend: convert_blend_descriptor(&state.alphaBlend),
color_blend: convert_blend_descriptor(&state.colorBlend),
write_mask: match wgt::ColorWrite::from_bits(state.writeMask) {
Some(mask) => mask,
None => {
valid = false;
wgt::ColorWrite::empty()
},
},
})
.collect::<Vec<_>>(),
);
let (layout, implicit_ids, bgls) = self.get_pipeline_layout_data(&descriptor.parent.layout);
let desc = if valid {
Some(wgpu_pipe::RenderPipelineDescriptor {
label: convert_label(&descriptor.parent.parent),
layout,
vertex_stage: wgpu_pipe::ProgrammableStageDescriptor {
module: descriptor.vertexStage.module.id().0,
entry_point: Cow::Owned(descriptor.vertexStage.entryPoint.to_string()),
},
fragment_stage: descriptor.fragmentStage.as_ref().map(|stage| {
wgpu_pipe::ProgrammableStageDescriptor {
module: stage.module.id().0,
entry_point: Cow::Owned(stage.entryPoint.to_string()),
}
}),
rasterization_state: Some(wgt::RasterizationStateDescriptor {
front_face: match rs_desc.frontFace {
GPUFrontFace::Ccw => wgt::FrontFace::Ccw,
GPUFrontFace::Cw => wgt::FrontFace::Cw,
},
cull_mode: match rs_desc.cullMode {
GPUCullMode::None => wgt::CullMode::None,
GPUCullMode::Front => wgt::CullMode::Front,
GPUCullMode::Back => wgt::CullMode::Back,
},
clamp_depth: rs_desc.clampDepth,
depth_bias: rs_desc.depthBias,
depth_bias_slope_scale: *rs_desc.depthBiasSlopeScale,
depth_bias_clamp: *rs_desc.depthBiasClamp,
}),
primitive_topology: match descriptor.primitiveTopology {
GPUPrimitiveTopology::Point_list => wgt::PrimitiveTopology::PointList,
GPUPrimitiveTopology::Line_list => wgt::PrimitiveTopology::LineList,
GPUPrimitiveTopology::Line_strip => wgt::PrimitiveTopology::LineStrip,
GPUPrimitiveTopology::Triangle_list => wgt::PrimitiveTopology::TriangleList,
GPUPrimitiveTopology::Triangle_strip => wgt::PrimitiveTopology::TriangleStrip,
},
color_states,
depth_stencil_state: descriptor.depthStencilState.as_ref().map(|dss_desc| {
wgt::DepthStencilStateDescriptor {
format: convert_texture_format(dss_desc.format),
depth_write_enabled: dss_desc.depthWriteEnabled,
depth_compare: convert_compare_function(dss_desc.depthCompare),
stencil: wgt::StencilStateDescriptor {
front: wgt::StencilStateFaceDescriptor {
compare: convert_compare_function(dss_desc.stencilFront.compare),
fail_op: convert_stencil_op(dss_desc.stencilFront.failOp),
depth_fail_op: convert_stencil_op(
dss_desc.stencilFront.depthFailOp,
),
pass_op: convert_stencil_op(dss_desc.stencilFront.passOp),
},
back: wgt::StencilStateFaceDescriptor {
compare: convert_compare_function(dss_desc.stencilBack.compare),
fail_op: convert_stencil_op(dss_desc.stencilBack.failOp),
depth_fail_op: convert_stencil_op(dss_desc.stencilBack.depthFailOp),
pass_op: convert_stencil_op(dss_desc.stencilBack.passOp),
},
read_mask: dss_desc.stencilReadMask,
write_mask: dss_desc.stencilWriteMask,
},
}
}),
vertex_state: wgpu_pipe::VertexStateDescriptor {
index_format: match vs_desc.indexFormat {
GPUIndexFormat::Uint16 => wgt::IndexFormat::Uint16,
GPUIndexFormat::Uint32 => wgt::IndexFormat::Uint32,
},
vertex_buffers: Cow::Owned(
vs_desc
.vertexBuffers
.iter()
.map(|buffer| wgpu_pipe::VertexBufferDescriptor {
stride: buffer.arrayStride,
step_mode: match buffer.stepMode {
GPUInputStepMode::Vertex => wgt::InputStepMode::Vertex,
GPUInputStepMode::Instance => wgt::InputStepMode::Instance,
},
attributes: Cow::Owned(
buffer
.attributes
.iter()
.map(|att| wgt::VertexAttributeDescriptor {
format: convert_vertex_format(att.format),
offset: att.offset,
shader_location: att.shaderLocation,
})
.collect::<Vec<_>>(),
),
})
.collect::<Vec<_>>(),
),
},
sample_count: descriptor.sampleCount,
sample_mask: descriptor.sampleMask,
alpha_to_coverage_enabled: descriptor.alphaToCoverageEnabled,
})
} else {
self.handle_server_msg(
scope_id,
WebGPUOpResult::ValidationError(String::from("Invalid GPUColorWriteFlags")),
);
None
};
let render_pipeline_id = self
.global()
.wgpu_id_hub()
.lock()
.create_render_pipeline_id(self.device.0.backend());
self.channel
.0
.send((
scope_id,
WebGPURequest::CreateRenderPipeline {
device_id: self.device.0,
render_pipeline_id,
descriptor: desc,
implicit_ids,
},
))
.expect("Failed to create WebGPU render pipeline");
let render_pipeline = webgpu::WebGPURenderPipeline(render_pipeline_id);
GPURenderPipeline::new(
&self.global(),
render_pipeline,
descriptor.parent.parent.label.as_ref().cloned(),
bgls,
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-createrenderbundleencoder
fn CreateRenderBundleEncoder(
&self,
descriptor: &GPURenderBundleEncoderDescriptor,
) -> DomRoot<GPURenderBundleEncoder> {
let desc = wgpu_com::RenderBundleEncoderDescriptor {
label: convert_label(&descriptor.parent),
color_formats: Cow::Owned(
descriptor
.colorFormats
.iter()
.map(|f| convert_texture_format(*f))
.collect::<Vec<_>>(),
),
depth_stencil_format: descriptor
.depthStencilFormat
.map(|f| convert_texture_format(f)),
sample_count: descriptor.sampleCount,
};
// Handle error gracefully
let render_bundle_encoder =
wgpu_com::RenderBundleEncoder::new(&desc, self.device.0, None).unwrap();
GPURenderBundleEncoder::new(
&self.global(),
render_bundle_encoder,
&self,
self.channel.clone(),
descriptor.parent.label.as_ref().cloned(),
)
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-pusherrorscope
fn PushErrorScope(&self, filter: GPUErrorFilter) {
let mut context = self.scope_context.borrow_mut();
let scope_id = context.next_scope_id;
context.next_scope_id = ErrorScopeId::new(scope_id.get() + 1).unwrap();
let err_scope = ErrorScopeInfo {
op_count: 0,
error: None,
promise: None,
};
let res = context.error_scopes.insert(scope_id, err_scope);
context.scope_stack.push(ErrorScopeMetadata {
id: scope_id,
filter,
popped: Cell::new(false),
});
assert!(res.is_none());
}
/// https://gpuweb.github.io/gpuweb/#dom-gpudevice-poperrorscope
fn PopErrorScope(&self, comp: InRealm) -> Rc<Promise> {
let mut context = self.scope_context.borrow_mut();
let promise = Promise::new_in_current_realm(&self.global(), comp);
let scope_id =
if let Some(meta) = context.scope_stack.iter().rev().find(|m| !m.popped.get()) {
meta.popped.set(true);
meta.id
} else {
promise.reject_error(Error::Operation);
return promise;
};
let remove = if let Some(mut err_scope) = context.error_scopes.get_mut(&scope_id) {
if let Some(ref e) = err_scope.error {
promise.resolve_native(e);
} else if err_scope.op_count == 0 {
promise.resolve_native(&None::<GPUError>);
}
err_scope.promise = Some(promise.clone());
err_scope.op_count == 0
} else {
error!("Could not find ErrorScope with Id({})", scope_id);
false
};
if remove {
let _ = context.error_scopes.remove(&scope_id);
context.scope_stack.retain(|meta| meta.id != scope_id);
}
promise
}
// https://gpuweb.github.io/gpuweb/#dom-gpudevice-onuncapturederror
event_handler!(uncapturederror, GetOnuncapturederror, SetOnuncapturederror);
}
fn convert_address_mode(address_mode: GPUAddressMode) -> wgt::AddressMode {
match address_mode {
GPUAddressMode::Clamp_to_edge => wgt::AddressMode::ClampToEdge,
GPUAddressMode::Repeat => wgt::AddressMode::Repeat,
GPUAddressMode::Mirror_repeat => wgt::AddressMode::MirrorRepeat,
}
}
fn convert_filter_mode(filter_mode: GPUFilterMode) -> wgt::FilterMode {
match filter_mode {
GPUFilterMode::Nearest => wgt::FilterMode::Nearest,
GPUFilterMode::Linear => wgt::FilterMode::Linear,
}
}
fn convert_compare_function(compare: GPUCompareFunction) -> wgt::CompareFunction {
match compare {
GPUCompareFunction::Never => wgt::CompareFunction::Never,
GPUCompareFunction::Less => wgt::CompareFunction::Less,
GPUCompareFunction::Equal => wgt::CompareFunction::Equal,
GPUCompareFunction::Less_equal => wgt::CompareFunction::LessEqual,
GPUCompareFunction::Greater => wgt::CompareFunction::Greater,
GPUCompareFunction::Not_equal => wgt::CompareFunction::NotEqual,
GPUCompareFunction::Greater_equal => wgt::CompareFunction::GreaterEqual,
GPUCompareFunction::Always => wgt::CompareFunction::Always,
}
}
fn convert_blend_descriptor(desc: &GPUBlendDescriptor) -> wgt::BlendDescriptor {
wgt::BlendDescriptor {
src_factor: convert_blend_factor(desc.srcFactor),
dst_factor: convert_blend_factor(desc.dstFactor),
operation: match desc.operation {
GPUBlendOperation::Add => wgt::BlendOperation::Add,
GPUBlendOperation::Subtract => wgt::BlendOperation::Subtract,
GPUBlendOperation::Reverse_subtract => wgt::BlendOperation::ReverseSubtract,
GPUBlendOperation::Min => wgt::BlendOperation::Min,
GPUBlendOperation::Max => wgt::BlendOperation::Max,
},
}
}
fn convert_blend_factor(factor: GPUBlendFactor) -> wgt::BlendFactor {
match factor {
GPUBlendFactor::Zero => wgt::BlendFactor::Zero,
GPUBlendFactor::One => wgt::BlendFactor::One,
GPUBlendFactor::Src_color => wgt::BlendFactor::SrcColor,
GPUBlendFactor::One_minus_src_color => wgt::BlendFactor::OneMinusSrcColor,
GPUBlendFactor::Src_alpha => wgt::BlendFactor::SrcAlpha,
GPUBlendFactor::One_minus_src_alpha => wgt::BlendFactor::OneMinusSrcAlpha,
GPUBlendFactor::Dst_color => wgt::BlendFactor::DstColor,
GPUBlendFactor::One_minus_dst_color => wgt::BlendFactor::OneMinusDstColor,
GPUBlendFactor::Dst_alpha => wgt::BlendFactor::DstAlpha,
GPUBlendFactor::One_minus_dst_alpha => wgt::BlendFactor::OneMinusDstAlpha,
GPUBlendFactor::Src_alpha_saturated => wgt::BlendFactor::SrcAlphaSaturated,
GPUBlendFactor::Blend_color => wgt::BlendFactor::BlendColor,
GPUBlendFactor::One_minus_blend_color => wgt::BlendFactor::OneMinusBlendColor,
}
}
fn convert_stencil_op(operation: GPUStencilOperation) -> wgt::StencilOperation {
match operation {
GPUStencilOperation::Keep => wgt::StencilOperation::Keep,
GPUStencilOperation::Zero => wgt::StencilOperation::Zero,
GPUStencilOperation::Replace => wgt::StencilOperation::Replace,
GPUStencilOperation::Invert => wgt::StencilOperation::Invert,
GPUStencilOperation::Increment_clamp => wgt::StencilOperation::IncrementClamp,
GPUStencilOperation::Decrement_clamp => wgt::StencilOperation::DecrementClamp,
GPUStencilOperation::Increment_wrap => wgt::StencilOperation::IncrementWrap,
GPUStencilOperation::Decrement_wrap => wgt::StencilOperation::DecrementWrap,
}
}
fn convert_vertex_format(format: GPUVertexFormat) -> wgt::VertexFormat {
match format {
GPUVertexFormat::Uchar2 => wgt::VertexFormat::Uchar2,
GPUVertexFormat::Uchar4 => wgt::VertexFormat::Uchar4,
GPUVertexFormat::Char2 => wgt::VertexFormat::Char2,
GPUVertexFormat::Char4 => wgt::VertexFormat::Char4,
GPUVertexFormat::Uchar2norm => wgt::VertexFormat::Uchar2Norm,
GPUVertexFormat::Uchar4norm => wgt::VertexFormat::Uchar4Norm,
GPUVertexFormat::Char2norm => wgt::VertexFormat::Char2Norm,
GPUVertexFormat::Char4norm => wgt::VertexFormat::Char4Norm,
GPUVertexFormat::Ushort2 => wgt::VertexFormat::Ushort2,
GPUVertexFormat::Ushort4 => wgt::VertexFormat::Ushort4,
GPUVertexFormat::Short2 => wgt::VertexFormat::Short2,
GPUVertexFormat::Short4 => wgt::VertexFormat::Short4,
GPUVertexFormat::Ushort2norm => wgt::VertexFormat::Ushort2Norm,
GPUVertexFormat::Ushort4norm => wgt::VertexFormat::Ushort4Norm,
GPUVertexFormat::Short2norm => wgt::VertexFormat::Short2Norm,
GPUVertexFormat::Short4norm => wgt::VertexFormat::Short4Norm,
GPUVertexFormat::Half2 => wgt::VertexFormat::Half2,
GPUVertexFormat::Half4 => wgt::VertexFormat::Half4,
GPUVertexFormat::Float => wgt::VertexFormat::Float,
GPUVertexFormat::Float2 => wgt::VertexFormat::Float2,
GPUVertexFormat::Float3 => wgt::VertexFormat::Float3,
GPUVertexFormat::Float4 => wgt::VertexFormat::Float4,
GPUVertexFormat::Uint => wgt::VertexFormat::Uint,
GPUVertexFormat::Uint2 => wgt::VertexFormat::Uint2,
GPUVertexFormat::Uint3 => wgt::VertexFormat::Uint3,
GPUVertexFormat::Uint4 => wgt::VertexFormat::Uint4,
GPUVertexFormat::Int => wgt::VertexFormat::Int,
GPUVertexFormat::Int2 => wgt::VertexFormat::Int2,
GPUVertexFormat::Int3 => wgt::VertexFormat::Int3,
GPUVertexFormat::Int4 => wgt::VertexFormat::Int4,
}
}
pub fn convert_texture_format(format: GPUTextureFormat) -> wgt::TextureFormat {
match format {
GPUTextureFormat::R8unorm => wgt::TextureFormat::R8Unorm,
GPUTextureFormat::R8snorm => wgt::TextureFormat::R8Snorm,
GPUTextureFormat::R8uint => wgt::TextureFormat::R8Uint,
GPUTextureFormat::R8sint => wgt::TextureFormat::R8Sint,
GPUTextureFormat::R16uint => wgt::TextureFormat::R16Uint,
GPUTextureFormat::R16sint => wgt::TextureFormat::R16Sint,
GPUTextureFormat::R16float => wgt::TextureFormat::R16Float,
GPUTextureFormat::Rg8unorm => wgt::TextureFormat::Rg8Unorm,
GPUTextureFormat::Rg8snorm => wgt::TextureFormat::Rg8Snorm,
GPUTextureFormat::Rg8uint => wgt::TextureFormat::Rg8Uint,
GPUTextureFormat::Rg8sint => wgt::TextureFormat::Rg8Sint,
GPUTextureFormat::R32uint => wgt::TextureFormat::R32Uint,
GPUTextureFormat::R32sint => wgt::TextureFormat::R32Sint,
GPUTextureFormat::R32float => wgt::TextureFormat::R32Float,
GPUTextureFormat::Rg16uint => wgt::TextureFormat::Rg16Uint,
GPUTextureFormat::Rg16sint => wgt::TextureFormat::Rg16Sint,
GPUTextureFormat::Rg16float => wgt::TextureFormat::Rg16Float,
GPUTextureFormat::Rgba8unorm => wgt::TextureFormat::Rgba8Unorm,
GPUTextureFormat::Rgba8unorm_srgb => wgt::TextureFormat::Rgba8UnormSrgb,
GPUTextureFormat::Rgba8snorm => wgt::TextureFormat::Rgba8Snorm,
GPUTextureFormat::Rgba8uint => wgt::TextureFormat::Rgba8Uint,
GPUTextureFormat::Rgba8sint => wgt::TextureFormat::Rgba8Sint,
GPUTextureFormat::Bgra8unorm => wgt::TextureFormat::Bgra8Unorm,
GPUTextureFormat::Bgra8unorm_srgb => wgt::TextureFormat::Bgra8UnormSrgb,
GPUTextureFormat::Rgb10a2unorm => wgt::TextureFormat::Rgb10a2Unorm,
GPUTextureFormat::Rg11b10float => wgt::TextureFormat::Rg11b10Float,
GPUTextureFormat::Rg32uint => wgt::TextureFormat::Rg32Uint,
GPUTextureFormat::Rg32sint => wgt::TextureFormat::Rg32Sint,
GPUTextureFormat::Rg32float => wgt::TextureFormat::Rg32Float,
GPUTextureFormat::Rgba16uint => wgt::TextureFormat::Rgba16Uint,
GPUTextureFormat::Rgba16sint => wgt::TextureFormat::Rgba16Sint,
GPUTextureFormat::Rgba16float => wgt::TextureFormat::Rgba16Float,
GPUTextureFormat::Rgba32uint => wgt::TextureFormat::Rgba32Uint,
GPUTextureFormat::Rgba32sint => wgt::TextureFormat::Rgba32Sint,
GPUTextureFormat::Rgba32float => wgt::TextureFormat::Rgba32Float,
GPUTextureFormat::Depth32float => wgt::TextureFormat::Depth32Float,
GPUTextureFormat::Depth24plus => wgt::TextureFormat::Depth24Plus,
GPUTextureFormat::Depth24plus_stencil8 => wgt::TextureFormat::Depth24PlusStencil8,
}
}
pub fn convert_texture_view_dimension(
dimension: GPUTextureViewDimension,
) -> wgt::TextureViewDimension {
match dimension {
GPUTextureViewDimension::_1d => wgt::TextureViewDimension::D1,
GPUTextureViewDimension::_2d => wgt::TextureViewDimension::D2,
GPUTextureViewDimension::_2d_array => wgt::TextureViewDimension::D2Array,
GPUTextureViewDimension::Cube => wgt::TextureViewDimension::Cube,
GPUTextureViewDimension::Cube_array => wgt::TextureViewDimension::CubeArray,
GPUTextureViewDimension::_3d => wgt::TextureViewDimension::D3,
}
}
pub fn convert_texture_size_to_dict(size: &GPUExtent3D) -> GPUExtent3DDict {
match *size {
GPUExtent3D::GPUExtent3DDict(ref dict) => GPUExtent3DDict {
width: dict.width,
height: dict.height,
depth: dict.depth,
},
GPUExtent3D::RangeEnforcedUnsignedLongSequence(ref v) => {
let mut w = v.clone();
w.resize(3, 1);
GPUExtent3DDict {
width: w[0],
height: w[1],
depth: w[2],
}
},
}
}
pub fn convert_texture_size_to_wgt(size: &GPUExtent3DDict) -> wgt::Extent3d {
wgt::Extent3d {
width: size.width,
height: size.height,
depth: size.depth,
}
}
pub fn convert_label(parent: &GPUObjectDescriptorBase) -> Option<Cow<'static, str>> {
parent.label.as_ref().map(|s| Cow::Owned(s.to_string()))
}