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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use deno_core::error::AnyError;use deno_core::op;use deno_core::OpState;use deno_core::Resource;use deno_core::ResourceId;use deno_core::ZeroCopyBuf;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()  }}
#[op]pub fn op_webgpu_compute_pass_set_pipeline(  state: &mut OpState,  compute_pass_rid: ResourceId,  pipeline: ResourceId,) -> Result<WebGpuResult, AnyError> {  let compute_pipeline_resource =    state      .resource_table      .get::<super::pipeline::WebGpuComputePipeline>(pipeline)?;  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(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())}
#[op]pub fn op_webgpu_compute_pass_dispatch_workgroups(  state: &mut OpState,  compute_pass_rid: ResourceId,  x: u32,  y: u32,  z: u32,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;
  wgpu_core::command::compute_ffi::wgpu_compute_pass_dispatch_workgroups(    &mut compute_pass_resource.0.borrow_mut(),    x,    y,    z,  );
  Ok(WebGpuResult::empty())}
#[op]pub fn op_webgpu_compute_pass_dispatch_workgroups_indirect(  state: &mut OpState,  compute_pass_rid: ResourceId,  indirect_buffer: ResourceId,  indirect_offset: u64,) -> Result<WebGpuResult, AnyError> {  let buffer_resource = state    .resource_table    .get::<super::buffer::WebGpuBuffer>(indirect_buffer)?;  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;
  wgpu_core::command::compute_ffi::wgpu_compute_pass_dispatch_workgroups_indirect(        &mut compute_pass_resource.0.borrow_mut(),        buffer_resource.0,        indirect_offset,    );
  Ok(WebGpuResult::empty())}
#[op]pub fn op_webgpu_compute_pass_begin_pipeline_statistics_query(  state: &mut OpState,  compute_pass_rid: ResourceId,  query_set: ResourceId,  query_index: u32,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;  let query_set_resource = state    .resource_table    .get::<super::WebGpuQuerySet>(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,        query_index,    );
  Ok(WebGpuResult::empty())}
#[op]pub fn op_webgpu_compute_pass_end_pipeline_statistics_query(  state: &mut OpState,  compute_pass_rid: ResourceId,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(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())}
#[op]pub fn op_webgpu_compute_pass_write_timestamp(  state: &mut OpState,  compute_pass_rid: ResourceId,  query_set: ResourceId,  query_index: u32,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;  let query_set_resource = state    .resource_table    .get::<super::WebGpuQuerySet>(query_set)?;
  wgpu_core::command::compute_ffi::wgpu_compute_pass_write_timestamp(    &mut compute_pass_resource.0.borrow_mut(),    query_set_resource.0,    query_index,  );
  Ok(WebGpuResult::empty())}
#[op]pub fn op_webgpu_compute_pass_end(  state: &mut OpState,  command_encoder_rid: ResourceId,  compute_pass_rid: ResourceId,) -> Result<WebGpuResult, AnyError> {  let command_encoder_resource = state    .resource_table    .get::<super::command_encoder::WebGpuCommandEncoder>(    command_encoder_rid,  )?;  let command_encoder = command_encoder_resource.0;  let compute_pass_resource = state    .resource_table    .take::<WebGpuComputePass>(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  ))}
#[op]pub fn op_webgpu_compute_pass_set_bind_group(  state: &mut OpState,  compute_pass_rid: ResourceId,  index: u32,  bind_group: ResourceId,  dynamic_offsets_data: ZeroCopyBuf,  dynamic_offsets_data_start: usize,  dynamic_offsets_data_length: usize,) -> Result<WebGpuResult, AnyError> {  let bind_group_resource =    state      .resource_table      .get::<super::binding::WebGpuBindGroup>(bind_group)?;  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;
  // Align the data  assert!(dynamic_offsets_data_start % std::mem::size_of::<u32>() == 0);  let (prefix, dynamic_offsets_data, suffix) =  // SAFETY: A u8 to u32 cast is safe because we asserted that the length is a  // multiple of 4.    unsafe { dynamic_offsets_data.align_to::<u32>() };  assert!(prefix.is_empty());  assert!(suffix.is_empty());
  let start = dynamic_offsets_data_start;  let len = 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(),      index,      bind_group_resource.0,      dynamic_offsets_data.as_ptr(),      dynamic_offsets_data.len(),    );  }
  Ok(WebGpuResult::empty())}
#[op]pub fn op_webgpu_compute_pass_push_debug_group(  state: &mut OpState,  compute_pass_rid: ResourceId,  group_label: String,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;
  let label = std::ffi::CString::new(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())}
#[op]pub fn op_webgpu_compute_pass_pop_debug_group(  state: &mut OpState,  compute_pass_rid: ResourceId,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;
  wgpu_core::command::compute_ffi::wgpu_compute_pass_pop_debug_group(    &mut compute_pass_resource.0.borrow_mut(),  );
  Ok(WebGpuResult::empty())}
#[op]pub fn op_webgpu_compute_pass_insert_debug_marker(  state: &mut OpState,  compute_pass_rid: ResourceId,  marker_label: String,) -> Result<WebGpuResult, AnyError> {  let compute_pass_resource = state    .resource_table    .get::<WebGpuComputePass>(compute_pass_rid)?;
  let label = std::ffi::CString::new(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())}