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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/. */
use std::collections::HashSet;
use std::hash::{Hash, Hasher};
use dom_struct::dom_struct;
use webgpu::{WebGPU, WebGPUCommandBuffer, WebGPURequest};
use crate::dom::bindings::cell::{DomRefCell, Ref};
use crate::dom::bindings::codegen::Bindings::WebGPUBinding::GPUCommandBufferMethods;
use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::str::USVString;
use crate::dom::globalscope::GlobalScope;
use crate::dom::gpubuffer::GPUBuffer;
impl Eq for DomRoot<GPUBuffer> {}
impl Hash for DomRoot<GPUBuffer> {
fn hash<H: Hasher>(&self, state: &mut H) {
self.id().hash(state);
}
}
#[dom_struct]
pub struct GPUCommandBuffer {
reflector_: Reflector,
#[ignore_malloc_size_of = "defined in webgpu"]
#[no_trace]
channel: WebGPU,
label: DomRefCell<USVString>,
#[no_trace]
command_buffer: WebGPUCommandBuffer,
buffers: DomRefCell<HashSet<Dom<GPUBuffer>>>,
}
impl GPUCommandBuffer {
fn new_inherited(
channel: WebGPU,
command_buffer: WebGPUCommandBuffer,
buffers: HashSet<DomRoot<GPUBuffer>>,
label: USVString,
) -> Self {
Self {
channel,
reflector_: Reflector::new(),
label: DomRefCell::new(label),
command_buffer,
buffers: DomRefCell::new(buffers.into_iter().map(|b| Dom::from_ref(&*b)).collect()),
}
}
pub fn new(
global: &GlobalScope,
channel: WebGPU,
command_buffer: WebGPUCommandBuffer,
buffers: HashSet<DomRoot<GPUBuffer>>,
label: USVString,
) -> DomRoot<Self> {
reflect_dom_object(
Box::new(GPUCommandBuffer::new_inherited(
channel,
command_buffer,
buffers,
label,
)),
global,
)
}
}
impl Drop for GPUCommandBuffer {
fn drop(&mut self) {
if let Err(e) = self.channel.0.send((
None,
WebGPURequest::FreeCommandBuffer(self.command_buffer.0),
)) {
warn!(
"Failed to send FreeCommandBuffer({:?}) ({})",
self.command_buffer.0, e
);
}
}
}
impl GPUCommandBuffer {
pub fn id(&self) -> WebGPUCommandBuffer {
self.command_buffer
}
pub fn buffers(&self) -> Ref<HashSet<Dom<GPUBuffer>>> {
self.buffers.borrow()
}
}
impl GPUCommandBufferMethods for GPUCommandBuffer {
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn Label(&self) -> USVString {
self.label.borrow().clone()
}
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn SetLabel(&self, value: USVString) {
*self.label.borrow_mut() = value;
}
}
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