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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::rc::Rc;
use dom_struct::dom_struct;
use webgpu::{ShaderCompilationInfo, WebGPU, WebGPURequest, WebGPUShaderModule};
use super::gpucompilationinfo::GPUCompilationInfo;
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::WebGPUBinding::{
GPUShaderModuleDescriptor, GPUShaderModuleMethods,
};
use crate::dom::bindings::reflector::{DomGlobal, Reflector, reflect_dom_object};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::USVString;
use crate::dom::bindings::trace::RootedTraceableBox;
use crate::dom::globalscope::GlobalScope;
use crate::dom::promise::Promise;
use crate::dom::types::GPUDevice;
use crate::realms::InRealm;
use crate::routed_promise::{RoutedPromiseListener, route_promise};
use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct GPUShaderModule {
reflector_: Reflector,
#[ignore_malloc_size_of = "defined in webgpu"]
#[no_trace]
channel: WebGPU,
label: DomRefCell<USVString>,
#[no_trace]
shader_module: WebGPUShaderModule,
#[ignore_malloc_size_of = "promise"]
compilation_info_promise: Rc<Promise>,
}
impl GPUShaderModule {
fn new_inherited(
channel: WebGPU,
shader_module: WebGPUShaderModule,
label: USVString,
promise: Rc<Promise>,
) -> Self {
Self {
reflector_: Reflector::new(),
channel,
label: DomRefCell::new(label),
shader_module,
compilation_info_promise: promise,
}
}
pub(crate) fn new(
global: &GlobalScope,
channel: WebGPU,
shader_module: WebGPUShaderModule,
label: USVString,
promise: Rc<Promise>,
can_gc: CanGc,
) -> DomRoot<Self> {
reflect_dom_object(
Box::new(GPUShaderModule::new_inherited(
channel,
shader_module,
label,
promise,
)),
global,
can_gc,
)
}
}
impl GPUShaderModule {
pub(crate) fn id(&self) -> WebGPUShaderModule {
self.shader_module
}
/// <https://gpuweb.github.io/gpuweb/#dom-gpudevice-createshadermodule>
pub(crate) fn create(
device: &GPUDevice,
descriptor: RootedTraceableBox<GPUShaderModuleDescriptor>,
comp: InRealm,
can_gc: CanGc,
) -> DomRoot<GPUShaderModule> {
let program_id = device.global().wgpu_id_hub().create_shader_module_id();
let promise = Promise::new_in_current_realm(comp, can_gc);
let shader_module = GPUShaderModule::new(
&device.global(),
device.channel().clone(),
WebGPUShaderModule(program_id),
descriptor.parent.label.clone(),
promise.clone(),
can_gc,
);
let sender = route_promise(&promise, &*shader_module);
device
.channel()
.0
.send(WebGPURequest::CreateShaderModule {
device_id: device.id().0,
program_id,
program: descriptor.code.0.clone(),
label: None,
sender,
})
.expect("Failed to create WebGPU ShaderModule");
shader_module
}
}
impl GPUShaderModuleMethods<crate::DomTypeHolder> for GPUShaderModule {
/// <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;
}
/// <https://gpuweb.github.io/gpuweb/#dom-gpushadermodule-getcompilationinfo>
fn GetCompilationInfo(&self) -> Rc<Promise> {
self.compilation_info_promise.clone()
}
}
impl RoutedPromiseListener<Option<ShaderCompilationInfo>> for GPUShaderModule {
fn handle_response(
&self,
response: Option<ShaderCompilationInfo>,
promise: &Rc<Promise>,
can_gc: CanGc,
) {
let info = GPUCompilationInfo::from(&self.global(), response, can_gc);
promise.resolve_native(&info, can_gc);
}
}
impl Drop for GPUShaderModule {
fn drop(&mut self) {
if let Err(e) = self
.channel
.0
.send(WebGPURequest::DropShaderModule(self.shader_module.0))
{
warn!(
"Failed to send DropShaderModule ({:?}) ({})",
self.shader_module.0, e
);
}
}
}
|
