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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use super::WebGpuResult;
use deno_core::op2;
use deno_core::OpState;
use deno_core::Resource;
use deno_core::ResourceId;
use serde::Deserialize;
use std::borrow::Cow;
use std::rc::Rc;
use wgpu_types::SurfaceStatus;
#[derive(Debug, thiserror::Error)]
pub enum SurfaceError {
#[error(transparent)]
Resource(deno_core::error::AnyError),
#[error("Invalid Surface Status")]
InvalidStatus,
#[error(transparent)]
Surface(wgpu_core::present::SurfaceError),
}
pub struct WebGpuSurface(pub crate::Instance, pub wgpu_core::id::SurfaceId);
impl Resource for WebGpuSurface {
fn name(&self) -> Cow<str> {
"webGPUSurface".into()
}
fn close(self: Rc<Self>) {
self.0.surface_drop(self.1);
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct SurfaceConfigureArgs {
surface_rid: ResourceId,
device_rid: ResourceId,
format: wgpu_types::TextureFormat,
usage: u32,
width: u32,
height: u32,
present_mode: Option<wgpu_types::PresentMode>,
alpha_mode: wgpu_types::CompositeAlphaMode,
view_formats: Vec<wgpu_types::TextureFormat>,
}
#[op2]
#[serde]
pub fn op_webgpu_surface_configure(
state: &mut OpState,
#[serde] args: SurfaceConfigureArgs,
) -> Result<WebGpuResult, deno_core::error::AnyError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(args.device_rid)?;
let device = device_resource.1;
let surface_resource = state
.resource_table
.get::<WebGpuSurface>(args.surface_rid)?;
let surface = surface_resource.1;
let conf = wgpu_types::SurfaceConfiguration::<Vec<wgpu_types::TextureFormat>> {
usage: wgpu_types::TextureUsages::from_bits_truncate(args.usage),
format: args.format,
width: args.width,
height: args.height,
present_mode: args.present_mode.unwrap_or_default(),
alpha_mode: args.alpha_mode,
view_formats: args.view_formats,
desired_maximum_frame_latency: 2,
};
let err =
gfx_select!(device => instance.surface_configure(surface, device, &conf));
Ok(WebGpuResult::maybe_err(err))
}
#[op2]
#[serde]
pub fn op_webgpu_surface_get_current_texture(
state: &mut OpState,
#[smi] device_rid: ResourceId,
#[smi] surface_rid: ResourceId,
) -> Result<WebGpuResult, SurfaceError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(device_rid)
.map_err(SurfaceError::Resource)?;
let device = device_resource.1;
let surface_resource = state
.resource_table
.get::<WebGpuSurface>(surface_rid)
.map_err(SurfaceError::Resource)?;
let surface = surface_resource.1;
let output =
gfx_select!(device => instance.surface_get_current_texture(surface, None))
.map_err(SurfaceError::Surface)?;
match output.status {
SurfaceStatus::Good | SurfaceStatus::Suboptimal => {
let id = output.texture_id.unwrap();
let rid = state.resource_table.add(crate::texture::WebGpuTexture {
instance: instance.clone(),
id,
owned: false,
});
Ok(WebGpuResult::rid(rid))
}
_ => Err(SurfaceError::InvalidStatus),
}
}
#[op2(fast)]
pub fn op_webgpu_surface_present(
state: &mut OpState,
#[smi] device_rid: ResourceId,
#[smi] surface_rid: ResourceId,
) -> Result<(), SurfaceError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(device_rid)
.map_err(SurfaceError::Resource)?;
let device = device_resource.1;
let surface_resource = state
.resource_table
.get::<WebGpuSurface>(surface_rid)
.map_err(SurfaceError::Resource)?;
let surface = surface_resource.1;
let _ = gfx_select!(device => instance.surface_present(surface))
.map_err(SurfaceError::Surface)?;
Ok(())
}
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