1 files changed, 354 insertions, 0 deletions
diff --git a/ext/webgpu/src/compute_pass.rs b/ext/webgpu/src/compute_pass.rs
new file mode 100644
index 000000000..03d9163cb
--- /dev/null
+++ b/ext/webgpu/src/compute_pass.rs
@@ -0,0 +1,354 @@
+// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+
+use deno_core::error::AnyError;
+use deno_core::ResourceId;
+use deno_core::ZeroCopyBuf;
+use deno_core::{OpState, Resource};
+use serde::Deserialize;
+use std::borrow::Cow;
+use std::cell::RefCell;
+
+use super::error::WebGpuResult;
+
+pub(crate) struct WebGpuComputePass(
+  pub(crate) RefCell<wgpu_core::command::ComputePass>,
+);
+impl Resource for WebGpuComputePass {
+  fn name(&self) -> Cow<str> {
+    "webGPUComputePass".into()
+  }
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassSetPipelineArgs {
+  compute_pass_rid: ResourceId,
+  pipeline: ResourceId,
+}
+
+pub fn op_webgpu_compute_pass_set_pipeline(
+  state: &mut OpState,
+  args: ComputePassSetPipelineArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pipeline_resource =
+    state
+      .resource_table
+      .get::<super::pipeline::WebGpuComputePipeline>(args.pipeline)?;
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_set_pipeline(
+    &mut compute_pass_resource.0.borrow_mut(),
+    compute_pipeline_resource.0,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassDispatchArgs {
+  compute_pass_rid: ResourceId,
+  x: u32,
+  y: u32,
+  z: u32,
+}
+
+pub fn op_webgpu_compute_pass_dispatch(
+  state: &mut OpState,
+  args: ComputePassDispatchArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_dispatch(
+    &mut compute_pass_resource.0.borrow_mut(),
+    args.x,
+    args.y,
+    args.z,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassDispatchIndirectArgs {
+  compute_pass_rid: ResourceId,
+  indirect_buffer: ResourceId,
+  indirect_offset: u64,
+}
+
+pub fn op_webgpu_compute_pass_dispatch_indirect(
+  state: &mut OpState,
+  args: ComputePassDispatchIndirectArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let buffer_resource = state
+    .resource_table
+    .get::<super::buffer::WebGpuBuffer>(args.indirect_buffer)?;
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_dispatch_indirect(
+    &mut compute_pass_resource.0.borrow_mut(),
+    buffer_resource.0,
+    args.indirect_offset,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassBeginPipelineStatisticsQueryArgs {
+  compute_pass_rid: ResourceId,
+  query_set: ResourceId,
+  query_index: u32,
+}
+
+pub fn op_webgpu_compute_pass_begin_pipeline_statistics_query(
+  state: &mut OpState,
+  args: ComputePassBeginPipelineStatisticsQueryArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+  let query_set_resource = state
+    .resource_table
+    .get::<super::WebGpuQuerySet>(args.query_set)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_begin_pipeline_statistics_query(
+        &mut compute_pass_resource.0.borrow_mut(),
+        query_set_resource.0,
+        args.query_index,
+    );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassEndPipelineStatisticsQueryArgs {
+  compute_pass_rid: ResourceId,
+}
+
+pub fn op_webgpu_compute_pass_end_pipeline_statistics_query(
+  state: &mut OpState,
+  args: ComputePassEndPipelineStatisticsQueryArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_end_pipeline_statistics_query(
+        &mut compute_pass_resource.0.borrow_mut(),
+    );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassWriteTimestampArgs {
+  compute_pass_rid: ResourceId,
+  query_set: ResourceId,
+  query_index: u32,
+}
+
+pub fn op_webgpu_compute_pass_write_timestamp(
+  state: &mut OpState,
+  args: ComputePassWriteTimestampArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+  let query_set_resource = state
+    .resource_table
+    .get::<super::WebGpuQuerySet>(args.query_set)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_write_timestamp(
+    &mut compute_pass_resource.0.borrow_mut(),
+    query_set_resource.0,
+    args.query_index,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassEndPassArgs {
+  command_encoder_rid: ResourceId,
+  compute_pass_rid: ResourceId,
+}
+
+pub fn op_webgpu_compute_pass_end_pass(
+  state: &mut OpState,
+  args: ComputePassEndPassArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let command_encoder_resource = state
+    .resource_table
+    .get::<super::command_encoder::WebGpuCommandEncoder>(
+    args.command_encoder_rid,
+  )?;
+  let command_encoder = command_encoder_resource.0;
+  let compute_pass_resource = state
+    .resource_table
+    .take::<WebGpuComputePass>(args.compute_pass_rid)?;
+  let compute_pass = &compute_pass_resource.0.borrow();
+  let instance = state.borrow::<super::Instance>();
+
+  gfx_ok!(command_encoder => instance.command_encoder_run_compute_pass(
+    command_encoder,
+    compute_pass
+  ))
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassSetBindGroupArgs {
+  compute_pass_rid: ResourceId,
+  index: u32,
+  bind_group: ResourceId,
+  dynamic_offsets_data: ZeroCopyBuf,
+  dynamic_offsets_data_start: usize,
+  dynamic_offsets_data_length: usize,
+}
+
+pub fn op_webgpu_compute_pass_set_bind_group(
+  state: &mut OpState,
+  args: ComputePassSetBindGroupArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let bind_group_resource =
+    state
+      .resource_table
+      .get::<super::binding::WebGpuBindGroup>(args.bind_group)?;
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  // Align the data
+  assert!(args.dynamic_offsets_data_start % std::mem::size_of::<u32>() == 0);
+  // SAFETY: A u8 to u32 cast is safe because we asserted that the length is a
+  // multiple of 4.
+  let (prefix, dynamic_offsets_data, suffix) =
+    unsafe { args.dynamic_offsets_data.align_to::<u32>() };
+  assert!(prefix.is_empty());
+  assert!(suffix.is_empty());
+
+  let start = args.dynamic_offsets_data_start;
+  let len = args.dynamic_offsets_data_length;
+
+  // Assert that length and start are both in bounds
+  assert!(start <= dynamic_offsets_data.len());
+  assert!(len <= dynamic_offsets_data.len() - start);
+
+  let dynamic_offsets_data: &[u32] = &dynamic_offsets_data[start..start + len];
+
+  // SAFETY: the raw pointer and length are of the same slice, and that slice
+  // lives longer than the below function invocation.
+  unsafe {
+    wgpu_core::command::compute_ffi::wgpu_compute_pass_set_bind_group(
+      &mut compute_pass_resource.0.borrow_mut(),
+      args.index,
+      bind_group_resource.0,
+      dynamic_offsets_data.as_ptr(),
+      dynamic_offsets_data.len(),
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassPushDebugGroupArgs {
+  compute_pass_rid: ResourceId,
+  group_label: String,
+}
+
+pub fn op_webgpu_compute_pass_push_debug_group(
+  state: &mut OpState,
+  args: ComputePassPushDebugGroupArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  let label = std::ffi::CString::new(args.group_label).unwrap();
+  // SAFETY: the string the raw pointer points to lives longer than the below
+  // function invocation.
+  unsafe {
+    wgpu_core::command::compute_ffi::wgpu_compute_pass_push_debug_group(
+      &mut compute_pass_resource.0.borrow_mut(),
+      label.as_ptr(),
+      0, // wgpu#975
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassPopDebugGroupArgs {
+  compute_pass_rid: ResourceId,
+}
+
+pub fn op_webgpu_compute_pass_pop_debug_group(
+  state: &mut OpState,
+  args: ComputePassPopDebugGroupArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  wgpu_core::command::compute_ffi::wgpu_compute_pass_pop_debug_group(
+    &mut compute_pass_resource.0.borrow_mut(),
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ComputePassInsertDebugMarkerArgs {
+  compute_pass_rid: ResourceId,
+  marker_label: String,
+}
+
+pub fn op_webgpu_compute_pass_insert_debug_marker(
+  state: &mut OpState,
+  args: ComputePassInsertDebugMarkerArgs,
+  _: (),
+) -> Result<WebGpuResult, AnyError> {
+  let compute_pass_resource = state
+    .resource_table
+    .get::<WebGpuComputePass>(args.compute_pass_rid)?;
+
+  let label = std::ffi::CString::new(args.marker_label).unwrap();
+  // SAFETY: the string the raw pointer points to lives longer than the below
+  // function invocation.
+  unsafe {
+    wgpu_core::command::compute_ffi::wgpu_compute_pass_insert_debug_marker(
+      &mut compute_pass_resource.0.borrow_mut(),
+      label.as_ptr(),
+      0, // wgpu#975
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}