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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::GPUSwapChainBinding::GPUSwapChainMethods;
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::gpucanvascontext::GPUCanvasContext;
use crate::dom::gputexture::GPUTexture;
use dom_struct::dom_struct;
use webgpu::{WebGPU, WebGPURequest, WebGPUTexture};
use webrender_api::ImageKey;
#[dom_struct]
pub struct GPUSwapChain {
reflector_: Reflector,
#[ignore_malloc_size_of = "channels are hard"]
channel: WebGPU,
label: DomRefCell<Option<USVString>>,
context: Dom<GPUCanvasContext>,
texture: Dom<GPUTexture>,
}
impl GPUSwapChain {
fn new_inherited(
channel: WebGPU,
context: &GPUCanvasContext,
texture: &GPUTexture,
label: Option<USVString>,
) -> Self {
Self {
reflector_: Reflector::new(),
channel,
context: Dom::from_ref(context),
texture: Dom::from_ref(texture),
label: DomRefCell::new(label),
}
}
pub fn new(
global: &GlobalScope,
channel: WebGPU,
context: &GPUCanvasContext,
texture: &GPUTexture,
label: Option<USVString>,
) -> DomRoot<Self> {
reflect_dom_object(
Box::new(GPUSwapChain::new_inherited(
channel, context, texture, label,
)),
global,
)
}
}
impl GPUSwapChain {
pub fn destroy(&self, external_id: u64, image_key: ImageKey) {
if let Err(e) = self.channel.0.send((
None,
WebGPURequest::DestroySwapChain {
external_id,
image_key,
},
)) {
warn!(
"Failed to send DestroySwapChain-ImageKey({:?}) ({})",
image_key, e
);
}
}
pub fn texture_id(&self) -> WebGPUTexture {
self.texture.id()
}
}
impl GPUSwapChainMethods for GPUSwapChain {
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn GetLabel(&self) -> Option<USVString> {
self.label.borrow().clone()
}
/// https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label
fn SetLabel(&self, value: Option<USVString>) {
*self.label.borrow_mut() = value;
}
/// https://gpuweb.github.io/gpuweb/#dom-gpuswapchain-getcurrenttexture
fn GetCurrentTexture(&self) -> DomRoot<GPUTexture> {
self.context.mark_as_dirty();
DomRoot::from_ref(&*self.texture)
}
}
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