feat: bring back WebGPU (#20812)

Signed-off-by: Leo Kettmeir <crowlkats@toaxl.com>
Co-authored-by: Kenta Moriuchi <moriken@kimamass.com>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/ext/webgpu/sampler.rs b/ext/webgpu/sampler.rs
new file mode 100644
index 000000000..3280a548a
--- /dev/null
+++ b/ext/webgpu/sampler.rs
@@ -0,0 +1,80 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+use deno_core::error::AnyError;
+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 WebGpuSampler(
+  pub(crate) crate::Instance,
+  pub(crate) wgpu_core::id::SamplerId,
+);
+impl Resource for WebGpuSampler {
+  fn name(&self) -> Cow<str> {
+    "webGPUSampler".into()
+  }
+
+  fn close(self: Rc<Self>) {
+    let instance = &self.0;
+    gfx_select!(self.1 => instance.sampler_drop(self.1));
+  }
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateSamplerArgs {
+  device_rid: ResourceId,
+  label: String,
+  address_mode_u: wgpu_types::AddressMode,
+  address_mode_v: wgpu_types::AddressMode,
+  address_mode_w: wgpu_types::AddressMode,
+  mag_filter: wgpu_types::FilterMode,
+  min_filter: wgpu_types::FilterMode,
+  mipmap_filter: wgpu_types::FilterMode, // TODO: GPUMipmapFilterMode
+  lod_min_clamp: f32,
+  lod_max_clamp: f32,
+  compare: Option<wgpu_types::CompareFunction>,
+  max_anisotropy: u16,
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_create_sampler(
+  state: &mut OpState,
+  #[serde] args: CreateSamplerArgs,
+) -> Result<WebGpuResult, 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::SamplerDescriptor {
+    label: Some(Cow::Owned(args.label)),
+    address_modes: [
+      args.address_mode_u,
+      args.address_mode_v,
+      args.address_mode_w,
+    ],
+    mag_filter: args.mag_filter,
+    min_filter: args.min_filter,
+    mipmap_filter: args.mipmap_filter,
+    lod_min_clamp: args.lod_min_clamp,
+    lod_max_clamp: args.lod_max_clamp,
+    compare: args.compare,
+    anisotropy_clamp: args.max_anisotropy,
+    border_color: None, // native-only
+  };
+
+  gfx_put!(device => instance.device_create_sampler(
+    device,
+    &descriptor,
+    ()
+  ) => state, WebGpuSampler)
+}