deno_webgpu 0.144.0

WebGPU implementation for Deno
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.

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 super::error::WebGpuResult;
pub(crate) struct WebGpuTexture {
  pub(crate) instance: crate::Instance,
  pub(crate) id: wgpu_core::id::TextureId,
  pub(crate) owned: bool,
}

impl Resource for WebGpuTexture {
  fn name(&self) -> Cow<str> {
    "webGPUTexture".into()
  }

  fn close(self: Rc<Self>) {
    if self.owned {
      let instance = &self.instance;
      gfx_select!(self.id => instance.texture_drop(self.id, true));
    }
  }
}

pub(crate) struct WebGpuTextureView(
  pub(crate) crate::Instance,
  pub(crate) wgpu_core::id::TextureViewId,
);
impl Resource for WebGpuTextureView {
  fn name(&self) -> Cow<str> {
    "webGPUTextureView".into()
  }

  fn close(self: Rc<Self>) {
    gfx_select!(self.1 => self.0.texture_view_drop(self.1, true)).unwrap();
  }
}

#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CreateTextureArgs {
  device_rid: ResourceId,
  label: String,
  size: wgpu_types::Extent3d,
  mip_level_count: u32,
  sample_count: u32,
  dimension: wgpu_types::TextureDimension,
  format: wgpu_types::TextureFormat,
  usage: u32,
  view_formats: Vec<wgpu_types::TextureFormat>,
}

#[op2]
#[serde]
pub fn op_webgpu_create_texture(
  state: &mut OpState,
  #[serde] args: CreateTextureArgs,
) -> 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 descriptor = wgpu_core::resource::TextureDescriptor {
    label: Some(Cow::Owned(args.label)),
    size: args.size,
    mip_level_count: args.mip_level_count,
    sample_count: args.sample_count,
    dimension: args.dimension,
    format: args.format,
    usage: wgpu_types::TextureUsages::from_bits_truncate(args.usage),
    view_formats: args.view_formats,
  };

  let (val, maybe_err) = gfx_select!(device => instance.device_create_texture(
    device,
    &descriptor,
    None
  ));

  let rid = state.resource_table.add(WebGpuTexture {
    instance: instance.clone(),
    id: val,
    owned: true,
  });

  Ok(WebGpuResult::rid_err(rid, maybe_err))
}

#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CreateTextureViewArgs {
  texture_rid: ResourceId,
  label: String,
  format: Option<wgpu_types::TextureFormat>,
  dimension: Option<wgpu_types::TextureViewDimension>,
  #[serde(flatten)]
  range: wgpu_types::ImageSubresourceRange,
}

#[op2]
#[serde]
pub fn op_webgpu_create_texture_view(
  state: &mut OpState,
  #[serde] args: CreateTextureViewArgs,
) -> Result<WebGpuResult, deno_core::error::AnyError> {
  let instance = state.borrow::<super::Instance>();
  let texture_resource = state
    .resource_table
    .get::<WebGpuTexture>(args.texture_rid)?;
  let texture = texture_resource.id;

  let descriptor = wgpu_core::resource::TextureViewDescriptor {
    label: Some(Cow::Owned(args.label)),
    format: args.format,
    dimension: args.dimension,
    range: args.range,
  };

  gfx_put!(texture => instance.texture_create_view(
    texture,
    &descriptor,
    None
  ) => state, WebGpuTextureView)
}