script/dom/webgpu/
gpurenderpipeline.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use dom_struct::dom_struct;
6use ipc_channel::ipc::IpcSender;
7use webgpu_traits::{
8    WebGPU, WebGPUBindGroupLayout, WebGPURenderPipeline, WebGPURenderPipelineResponse,
9    WebGPURequest,
10};
11use wgpu_core::pipeline::RenderPipelineDescriptor;
12
13use crate::dom::bindings::cell::DomRefCell;
14use crate::dom::bindings::codegen::Bindings::WebGPUBinding::GPURenderPipelineMethods;
15use crate::dom::bindings::error::Fallible;
16use crate::dom::bindings::reflector::{DomGlobal, Reflector, reflect_dom_object};
17use crate::dom::bindings::root::{Dom, DomRoot};
18use crate::dom::bindings::str::USVString;
19use crate::dom::globalscope::GlobalScope;
20use crate::dom::webgpu::gpubindgrouplayout::GPUBindGroupLayout;
21use crate::dom::webgpu::gpudevice::{GPUDevice, PipelineLayout};
22use crate::script_runtime::CanGc;
23
24#[dom_struct]
25pub(crate) struct GPURenderPipeline {
26    reflector_: Reflector,
27    #[ignore_malloc_size_of = "channels are hard"]
28    #[no_trace]
29    channel: WebGPU,
30    label: DomRefCell<USVString>,
31    #[no_trace]
32    render_pipeline: WebGPURenderPipeline,
33    device: Dom<GPUDevice>,
34}
35
36impl GPURenderPipeline {
37    fn new_inherited(
38        render_pipeline: WebGPURenderPipeline,
39        label: USVString,
40        device: &GPUDevice,
41    ) -> Self {
42        Self {
43            reflector_: Reflector::new(),
44            channel: device.channel(),
45            label: DomRefCell::new(label),
46            render_pipeline,
47            device: Dom::from_ref(device),
48        }
49    }
50
51    pub(crate) fn new(
52        global: &GlobalScope,
53        render_pipeline: WebGPURenderPipeline,
54        label: USVString,
55        device: &GPUDevice,
56        can_gc: CanGc,
57    ) -> DomRoot<Self> {
58        reflect_dom_object(
59            Box::new(GPURenderPipeline::new_inherited(
60                render_pipeline,
61                label,
62                device,
63            )),
64            global,
65            can_gc,
66        )
67    }
68}
69
70impl GPURenderPipeline {
71    pub(crate) fn id(&self) -> WebGPURenderPipeline {
72        self.render_pipeline
73    }
74
75    /// <https://gpuweb.github.io/gpuweb/#dom-gpudevice-createrenderpipeline>
76    pub(crate) fn create(
77        device: &GPUDevice,
78        pipeline_layout: PipelineLayout,
79        descriptor: RenderPipelineDescriptor<'static>,
80        async_sender: Option<IpcSender<WebGPURenderPipelineResponse>>,
81    ) -> Fallible<WebGPURenderPipeline> {
82        let render_pipeline_id = device.global().wgpu_id_hub().create_render_pipeline_id();
83
84        device
85            .channel()
86            .0
87            .send(WebGPURequest::CreateRenderPipeline {
88                device_id: device.id().0,
89                render_pipeline_id,
90                descriptor,
91                implicit_ids: pipeline_layout.implicit(),
92                async_sender,
93            })
94            .expect("Failed to create WebGPU render pipeline");
95
96        Ok(WebGPURenderPipeline(render_pipeline_id))
97    }
98}
99
100impl GPURenderPipelineMethods<crate::DomTypeHolder> for GPURenderPipeline {
101    /// <https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label>
102    fn Label(&self) -> USVString {
103        self.label.borrow().clone()
104    }
105
106    /// <https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label>
107    fn SetLabel(&self, value: USVString) {
108        *self.label.borrow_mut() = value;
109    }
110
111    /// <https://gpuweb.github.io/gpuweb/#dom-gpupipelinebase-getbindgrouplayout>
112    fn GetBindGroupLayout(&self, index: u32) -> Fallible<DomRoot<GPUBindGroupLayout>> {
113        let id = self.global().wgpu_id_hub().create_bind_group_layout_id();
114
115        if let Err(e) = self
116            .channel
117            .0
118            .send(WebGPURequest::RenderGetBindGroupLayout {
119                device_id: self.device.id().0,
120                pipeline_id: self.render_pipeline.0,
121                index,
122                id,
123            })
124        {
125            warn!("Failed to send WebGPURequest::RenderGetBindGroupLayout {e:?}");
126        }
127
128        Ok(GPUBindGroupLayout::new(
129            &self.global(),
130            self.channel.clone(),
131            WebGPUBindGroupLayout(id),
132            USVString::default(),
133            CanGc::note(),
134        ))
135    }
136}
137
138impl Drop for GPURenderPipeline {
139    fn drop(&mut self) {
140        if let Err(e) = self
141            .channel
142            .0
143            .send(WebGPURequest::DropRenderPipeline(self.render_pipeline.0))
144        {
145            warn!(
146                "Failed to send WebGPURequest::DropRenderPipeline({:?}) ({})",
147                self.render_pipeline.0, e
148            );
149        };
150    }
151}
script/dom/webgpu/gpurenderpipeline.rs

script/dom/webgpu/
gpurenderpipeline.rs
