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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 dom_struct::dom_struct;
use ipc_channel::ipc::IpcSharedMemory;
use webgpu::identity::WebGPUOpResult;
use webgpu::{wgt, WebGPU, WebGPUQueue, WebGPURequest};
use super::bindings::codegen::Bindings::WebGPUBinding::{GPUImageCopyTexture, GPUImageDataLayout};
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::WebGPUBinding::{
GPUExtent3D, GPUQueueMethods, GPUSize64,
};
use crate::dom::bindings::codegen::UnionTypes::ArrayBufferViewOrArrayBuffer as BufferSource;
use crate::dom::bindings::error::{Error, Fallible};
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::gpubuffer::{GPUBuffer, GPUBufferState};
use crate::dom::gpucommandbuffer::GPUCommandBuffer;
use crate::dom::gpucommandencoder::{convert_ic_texture, convert_image_data_layout};
use crate::dom::gpudevice::{convert_texture_size_to_dict, convert_texture_size_to_wgt, GPUDevice};
#[dom_struct]
pub struct GPUQueue {
reflector_: Reflector,
#[ignore_malloc_size_of = "defined in webgpu"]
#[no_trace]
channel: WebGPU,
device: DomRefCell<Option<Dom<GPUDevice>>>,
label: DomRefCell<USVString>,
#[no_trace]
queue: WebGPUQueue,
}
impl GPUQueue {
fn new_inherited(channel: WebGPU, queue: WebGPUQueue) -> Self {
GPUQueue {
channel,
reflector_: Reflector::new(),
device: DomRefCell::new(None),
label: DomRefCell::new(USVString::default()),
queue,
}
}
pub fn new(global: &GlobalScope, channel: WebGPU, queue: WebGPUQueue) -> DomRoot<Self> {
reflect_dom_object(Box::new(GPUQueue::new_inherited(channel, queue)), global)
}
}
impl GPUQueue {
pub fn set_device(&self, device: &GPUDevice) {
*self.device.borrow_mut() = Some(Dom::from_ref(device));
}
}
impl GPUQueueMethods for GPUQueue {
/// <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-gpuqueue-submit>
fn Submit(&self, command_buffers: Vec<DomRoot<GPUCommandBuffer>>) {
let valid = command_buffers.iter().all(|cb| {
cb.buffers().iter().all(|b| match b.state() {
GPUBufferState::Unmapped => true,
_ => false,
})
});
let scope_id = self.device.borrow().as_ref().unwrap().use_current_scope();
if !valid {
self.device.borrow().as_ref().unwrap().handle_server_msg(
scope_id,
WebGPUOpResult::ValidationError(String::from(
"Referenced GPUBuffer(s) are not Unmapped",
)),
);
return;
}
let command_buffers = command_buffers.iter().map(|cb| cb.id().0).collect();
self.channel
.0
.send((
scope_id,
WebGPURequest::Submit {
queue_id: self.queue.0,
command_buffers,
},
))
.unwrap();
}
/// <https://gpuweb.github.io/gpuweb/#dom-gpuqueue-writebuffer>
#[allow(unsafe_code)]
fn WriteBuffer(
&self,
buffer: &GPUBuffer,
buffer_offset: GPUSize64,
data: BufferSource,
data_offset: GPUSize64,
size: Option<GPUSize64>,
) -> Fallible<()> {
let bytes = match data {
BufferSource::ArrayBufferView(d) => d.to_vec(),
BufferSource::ArrayBuffer(d) => d.to_vec(),
};
let content_size = if let Some(s) = size {
s
} else {
bytes.len() as GPUSize64 - data_offset
};
let valid = data_offset + content_size <= bytes.len() as u64 &&
buffer.state() == GPUBufferState::Unmapped &&
content_size % wgt::COPY_BUFFER_ALIGNMENT == 0 &&
buffer_offset % wgt::COPY_BUFFER_ALIGNMENT == 0;
if !valid {
return Err(Error::Operation);
}
let final_data = IpcSharedMemory::from_bytes(
&bytes[data_offset as usize..(data_offset + content_size) as usize],
);
if let Err(e) = self.channel.0.send((
self.device.borrow().as_ref().unwrap().use_current_scope(),
WebGPURequest::WriteBuffer {
queue_id: self.queue.0,
buffer_id: buffer.id().0,
buffer_offset,
data: final_data,
},
)) {
warn!("Failed to send WriteBuffer({:?}) ({})", buffer.id(), e);
return Err(Error::Operation);
}
Ok(())
}
/// <https://gpuweb.github.io/gpuweb/#dom-gpuqueue-writetexture>
fn WriteTexture(
&self,
destination: &GPUImageCopyTexture,
data: BufferSource,
data_layout: &GPUImageDataLayout,
size: GPUExtent3D,
) -> Fallible<()> {
let (bytes, len) = match data {
BufferSource::ArrayBufferView(d) => (d.to_vec(), d.len() as u64),
BufferSource::ArrayBuffer(d) => (d.to_vec(), d.len() as u64),
};
let valid = data_layout.offset <= len;
if !valid {
return Err(Error::Operation);
}
let texture_cv = convert_ic_texture(destination);
let texture_layout = convert_image_data_layout(data_layout);
let write_size = convert_texture_size_to_wgt(&convert_texture_size_to_dict(&size));
let final_data = IpcSharedMemory::from_bytes(&bytes);
if let Err(e) = self.channel.0.send((
self.device.borrow().as_ref().unwrap().use_current_scope(),
WebGPURequest::WriteTexture {
queue_id: self.queue.0,
texture_cv,
data_layout: texture_layout,
size: write_size,
data: final_data,
},
)) {
warn!(
"Failed to send WriteTexture({:?}) ({})",
destination.texture.id().0,
e
);
return Err(Error::Operation);
}
Ok(())
}
}
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