webgpu: Move actual Create* implementations from `GPUDevice` to Self (#33320)

* Move actual Create* implementations from `GPUDevice` to Self

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

* move Create*Pipeline to Self::create

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

* `parse_render_pipeline` outside`GPURenderPipeline::create`

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

1 files changed, 56 insertions, 2 deletions

diff --git a/components/script/dom/gpubindgrouplayout.rs b/components/script/dom/gpubindgrouplayout.rs
index 2a4cb199d41..875eff8e3fc 100644
--- a/components/script/dom/gpubindgrouplayout.rs
+++ b/components/script/dom/gpubindgrouplayout.rs
@@ -2,15 +2,23 @@
  * 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/. */
 
+use std::borrow::Cow;
+
 use dom_struct::dom_struct;
+use webgpu::wgc::binding_model::BindGroupLayoutDescriptor;
 use webgpu::{WebGPU, WebGPUBindGroupLayout, WebGPURequest};
 
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::WebGPUBinding::GPUBindGroupLayoutMethods;
-use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
+use crate::dom::bindings::codegen::Bindings::WebGPUBinding::{
+    GPUBindGroupLayoutDescriptor, GPUBindGroupLayoutMethods,
+};
+use crate::dom::bindings::error::Fallible;
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::USVString;
 use crate::dom::globalscope::GlobalScope;
+use crate::dom::gpuconvert::{convert_bind_group_layout_entry, convert_label};
+use crate::dom::gpudevice::GPUDevice;
 
 #[dom_struct]
 pub struct GPUBindGroupLayout {
@@ -58,6 +66,52 @@ impl GPUBindGroupLayout {
     pub fn id(&self) -> WebGPUBindGroupLayout {
         self.bind_group_layout
     }
+
+    /// <https://gpuweb.github.io/gpuweb/#GPUDevice-createBindGroupLayout>
+    pub fn create(
+        device: &GPUDevice,
+        descriptor: &GPUBindGroupLayoutDescriptor,
+    ) -> Fallible<DomRoot<GPUBindGroupLayout>> {
+        let entries = descriptor
+            .entries
+            .iter()
+            .map(|bgle| convert_bind_group_layout_entry(bgle, device))
+            .collect::<Fallible<Result<Vec<_>, _>>>()?;
+
+        let desc = match entries {
+            Ok(entries) => Some(BindGroupLayoutDescriptor {
+                label: convert_label(&descriptor.parent),
+                entries: Cow::Owned(entries),
+            }),
+            Err(error) => {
+                device.dispatch_error(error);
+                None
+            },
+        };
+
+        let bind_group_layout_id = device
+            .global()
+            .wgpu_id_hub()
+            .create_bind_group_layout_id(device.id().0.backend());
+        device
+            .channel()
+            .0
+            .send(WebGPURequest::CreateBindGroupLayout {
+                device_id: device.id().0,
+                bind_group_layout_id,
+                descriptor: desc,
+            })
+            .expect("Failed to create WebGPU BindGroupLayout");
+
+        let bgl = WebGPUBindGroupLayout(bind_group_layout_id);
+
+        Ok(GPUBindGroupLayout::new(
+            &device.global(),
+            device.channel().clone(),
+            bgl,
+            descriptor.parent.label.clone(),
+        ))
+    }
 }
 
 impl Drop for GPUBindGroupLayout {