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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 crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::GPUComputePassEncoderBinding::{
self, GPUComputePassEncoderMethods,
};
use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::DOMString;
use crate::dom::globalscope::GlobalScope;
use crate::dom::gpubindgroup::GPUBindGroup;
use crate::dom::gpucomputepipeline::GPUComputePipeline;
use dom_struct::dom_struct;
use std::cell::RefCell;
use webgpu::{
wgpu::command::{
compute_ffi::{
wgpu_compute_pass_dispatch, wgpu_compute_pass_set_bind_group,
wgpu_compute_pass_set_pipeline,
},
RawPass,
},
WebGPU, WebGPUCommandEncoder, WebGPURequest,
};
#[dom_struct]
pub struct GPUComputePassEncoder {
reflector_: Reflector,
#[ignore_malloc_size_of = "defined in webgpu"]
channel: WebGPU,
label: DomRefCell<Option<DOMString>>,
#[ignore_malloc_size_of = "defined in wgpu-core"]
raw_pass: RefCell<Option<RawPass>>,
}
impl GPUComputePassEncoder {
fn new_inherited(channel: WebGPU, parent: WebGPUCommandEncoder) -> GPUComputePassEncoder {
GPUComputePassEncoder {
channel,
reflector_: Reflector::new(),
label: DomRefCell::new(None),
raw_pass: RefCell::new(Some(RawPass::new_compute(parent.0))),
}
}
pub fn new(
global: &GlobalScope,
channel: WebGPU,
parent: WebGPUCommandEncoder,
) -> DomRoot<GPUComputePassEncoder> {
reflect_dom_object(
Box::new(GPUComputePassEncoder::new_inherited(channel, parent)),
global,
GPUComputePassEncoderBinding::Wrap,
)
}
}
impl GPUComputePassEncoderMethods for GPUComputePassEncoder {
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn GetLabel(&self) -> Option<DOMString> {
self.label.borrow().clone()
}
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn SetLabel(&self, value: Option<DOMString>) {
*self.label.borrow_mut() = value;
}
#[allow(unsafe_code)]
/// https://gpuweb.github.io/gpuweb/#dom-gpucomputepassencoder-dispatch
fn Dispatch(&self, x: u32, y: u32, z: u32) {
if let Some(raw_pass) = self.raw_pass.borrow_mut().as_mut() {
unsafe { wgpu_compute_pass_dispatch(raw_pass, x, y, z) };
}
}
#[allow(unsafe_code)]
/// https://gpuweb.github.io/gpuweb/#dom-gpurenderpassencoder-endpass
fn EndPass(&self) {
if let Some(raw_pass) = self.raw_pass.borrow_mut().take() {
let (pass_data, id) = unsafe { raw_pass.finish_compute() };
self.channel
.0
.send(WebGPURequest::RunComputePass(id, pass_data))
.unwrap();
}
}
#[allow(unsafe_code)]
/// https://gpuweb.github.io/gpuweb/#dom-gpuprogrammablepassencoder-setbindgroup
fn SetBindGroup(&self, index: u32, bind_group: &GPUBindGroup, dynamic_offsets: Vec<u32>) {
if let Some(raw_pass) = self.raw_pass.borrow_mut().as_mut() {
unsafe {
wgpu_compute_pass_set_bind_group(
raw_pass,
index,
bind_group.id().0,
dynamic_offsets.as_ptr(),
dynamic_offsets.len(),
)
};
}
}
#[allow(unsafe_code)]
/// https://gpuweb.github.io/gpuweb/#dom-gpucomputepassencoder-setpipeline
fn SetPipeline(&self, pipeline: &GPUComputePipeline) {
if let Some(raw_pass) = self.raw_pass.borrow_mut().as_mut() {
unsafe { wgpu_compute_pass_set_pipeline(raw_pass, pipeline.id().0) };
}
}
}
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