1 files changed, 68 insertions, 0 deletions
diff --git a/ext/webgpu/src/sampler.rs b/ext/webgpu/src/sampler.rs
new file mode 100644
index 000000000..54a324a67
--- /dev/null
+++ b/ext/webgpu/src/sampler.rs
@@ -0,0 +1,68 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+use deno_core::error::AnyError;
+use deno_core::ResourceId;
+use deno_core::{OpState, Resource};
+use serde::Deserialize;
+use std::borrow::Cow;
+
+use super::error::WebGpuResult;
+
+pub(crate) struct WebGpuSampler(pub(crate) wgpu_core::id::SamplerId);
+impl Resource for WebGpuSampler {
+  fn name(&self) -> Cow<str> {
+    "webGPUSampler".into()
+  }
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateSamplerArgs {
+  device_rid: ResourceId,
+  label: Option<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,
+  lod_min_clamp: f32,
+  lod_max_clamp: f32,
+  compare: Option<wgpu_types::CompareFunction>,
+  max_anisotropy: u8,
+}
+
+pub fn op_webgpu_create_sampler(
+  state: &mut OpState,
+  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.0;
+
+  let descriptor = wgpu_core::resource::SamplerDescriptor {
+    label: args.label.map(Cow::from),
+    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: std::num::NonZeroU8::new(args.max_anisotropy),
+    border_color: None, // native-only
+  };
+
+  gfx_put!(device => instance.device_create_sampler(
+    device,
+    &descriptor,
+    std::marker::PhantomData
+  ) => state, WebGpuSampler)
+}