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Only start WebGPU thread if an adapter is requested

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This commit is contained in:
Zakor Gyula 2019-11-20 09:03:10 +01:00
parent f8c957dc1b
commit a751b1c3d7
15 changed files with 200 additions and 147 deletions
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41
components/script/dom/gpu.rs
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@ -19,9 +19,10 @@ use dom_struct::dom_struct;
use ipc_channel::ipc::{self, IpcSender};
use ipc_channel::router::ROUTER;
use js::jsapi::Heap;
use script_traits::ScriptMsg;
use std::rc::Rc;
use webgpu::wgpu;
use webgpu::{WebGPU, WebGPURequest, WebGPUResponse, WebGPUResponseResult};
use webgpu::{WebGPUResponse, WebGPUResponseResult};
#[dom_struct]
pub struct GPU {
@ -38,10 +39,6 @@ impl GPU {
pub fn new(global: &GlobalScope) -> DomRoot<GPU> {
reflect_dom_object(Box::new(GPU::new_inherited()), global, GPUBinding::Wrap)
}
fn wgpu_channel(&self) -> Option<WebGPU> {
self.global().as_window().webgpu_channel()
}
}
pub trait AsyncWGPUListener {
@ -114,7 +111,8 @@ impl GPUMethods for GPU {
options: &GPURequestAdapterOptions,
comp: InCompartment,
) -> Rc<Promise> {
let promise = Promise::new_in_current_compartment(&self.global(), comp);
let global = &self.global();
let promise = Promise::new_in_current_compartment(global, comp);
let sender = response_async(&promise, self);
let power_preference = match options.powerPreference {
Some(GPUPowerPreference::Low_power) => wgpu::instance::PowerPreference::LowPower,
@ -123,21 +121,21 @@ impl GPUMethods for GPU {
},
None => wgpu::instance::PowerPreference::Default,
};
let ids = self.global().as_window().Navigator().create_adapter_ids();
let ids = global.as_window().Navigator().create_adapter_ids();
match self.wgpu_channel() {
Some(channel) => {
channel
.0
.send(WebGPURequest::RequestAdapter(
sender,
wgpu::instance::RequestAdapterOptions { power_preference },
ids,
))
.unwrap();
},
None => promise.reject_error(Error::Type("No WebGPU thread...".to_owned())),
};
let script_to_constellation_chan = global.script_to_constellation_chan();
if script_to_constellation_chan
.send(ScriptMsg::RequestAdapter(
sender,
wgpu::instance::RequestAdapterOptions { power_preference },
ids,
))
.is_err()
{
promise.reject_error(Error::Type(
"Failed to send adapter request to constellation...".to_owned(),
));
}
promise
}
}
@ -145,9 +143,10 @@ impl GPUMethods for GPU {
impl AsyncWGPUListener for GPU {
fn handle_response(&self, response: WebGPUResponse, promise: &Rc<Promise>) {
match response {
WebGPUResponse::RequestAdapter(name, adapter) => {
WebGPUResponse::RequestAdapter(name, adapter, channel) => {
let adapter = GPUAdapter::new(
&self.global(),
channel,
DOMString::from(format!("{} ({:?})", name, adapter.0.backend())),
Heap::default(),
adapter,