1 files changed, 519 insertions, 0 deletions
diff --git a/ext/webgpu/render_pass.rs b/ext/webgpu/render_pass.rs
new file mode 100644
index 000000000..abb62a0be
--- /dev/null
+++ b/ext/webgpu/render_pass.rs
@@ -0,0 +1,519 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+use deno_core::error::type_error;
+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::cell::RefCell;
+
+use super::error::WebGpuResult;
+
+pub(crate) struct WebGpuRenderPass(
+  pub(crate) RefCell<wgpu_core::command::RenderPass>,
+);
+impl Resource for WebGpuRenderPass {
+  fn name(&self) -> Cow<str> {
+    "webGPURenderPass".into()
+  }
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RenderPassSetViewportArgs {
+  render_pass_rid: ResourceId,
+  x: f32,
+  y: f32,
+  width: f32,
+  height: f32,
+  min_depth: f32,
+  max_depth: f32,
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_viewport(
+  state: &mut OpState,
+  #[serde] args: RenderPassSetViewportArgs,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(args.render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_set_viewport(
+    &mut render_pass_resource.0.borrow_mut(),
+    args.x,
+    args.y,
+    args.width,
+    args.height,
+    args.min_depth,
+    args.max_depth,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_scissor_rect(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  x: u32,
+  y: u32,
+  width: u32,
+  height: u32,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_set_scissor_rect(
+    &mut render_pass_resource.0.borrow_mut(),
+    x,
+    y,
+    width,
+    height,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_blend_constant(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  #[serde] color: wgpu_types::Color,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_set_blend_constant(
+    &mut render_pass_resource.0.borrow_mut(),
+    &color,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_stencil_reference(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  reference: u32,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_set_stencil_reference(
+    &mut render_pass_resource.0.borrow_mut(),
+    reference,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_begin_occlusion_query(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  query_index: u32,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_begin_occlusion_query(
+    &mut render_pass_resource.0.borrow_mut(),
+    query_index,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_end_occlusion_query(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_end_occlusion_query(
+    &mut render_pass_resource.0.borrow_mut(),
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_execute_bundles(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  #[serde] bundles: Vec<u32>,
+) -> Result<WebGpuResult, AnyError> {
+  let bundles = bundles
+    .iter()
+    .map(|rid| {
+      let render_bundle_resource =
+        state
+          .resource_table
+          .get::<super::bundle::WebGpuRenderBundle>(*rid)?;
+      Ok(render_bundle_resource.1)
+    })
+    .collect::<Result<Vec<_>, AnyError>>()?;
+
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  // 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::render_ffi::wgpu_render_pass_execute_bundles(
+      &mut render_pass_resource.0.borrow_mut(),
+      bundles.as_ptr(),
+      bundles.len(),
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_end(
+  state: &mut OpState,
+  #[smi] command_encoder_rid: ResourceId,
+  #[smi] render_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.1;
+  let render_pass_resource = state
+    .resource_table
+    .take::<WebGpuRenderPass>(render_pass_rid)?;
+  let render_pass = &render_pass_resource.0.borrow();
+  let instance = state.borrow::<super::Instance>();
+
+  gfx_ok!(command_encoder => instance.command_encoder_run_render_pass(command_encoder, render_pass))
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_bind_group(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  index: u32,
+  bind_group: u32,
+  #[buffer] dynamic_offsets_data: &[u32],
+  #[number] dynamic_offsets_data_start: usize,
+  #[number] dynamic_offsets_data_length: usize,
+) -> Result<WebGpuResult, AnyError> {
+  let bind_group_resource =
+    state
+      .resource_table
+      .get::<super::binding::WebGpuBindGroup>(bind_group)?;
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  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::render_ffi::wgpu_render_pass_set_bind_group(
+      &mut render_pass_resource.0.borrow_mut(),
+      index,
+      bind_group_resource.1,
+      dynamic_offsets_data.as_ptr(),
+      dynamic_offsets_data.len(),
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_push_debug_group(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  #[string] group_label: &str,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_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::render_ffi::wgpu_render_pass_push_debug_group(
+      &mut render_pass_resource.0.borrow_mut(),
+      label.as_ptr(),
+      0, // wgpu#975
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_pop_debug_group(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_pop_debug_group(
+    &mut render_pass_resource.0.borrow_mut(),
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_insert_debug_marker(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  #[string] marker_label: &str,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_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::render_ffi::wgpu_render_pass_insert_debug_marker(
+      &mut render_pass_resource.0.borrow_mut(),
+      label.as_ptr(),
+      0, // wgpu#975
+    );
+  }
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_pipeline(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  pipeline: u32,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pipeline_resource =
+    state
+      .resource_table
+      .get::<super::pipeline::WebGpuRenderPipeline>(pipeline)?;
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_set_pipeline(
+    &mut render_pass_resource.0.borrow_mut(),
+    render_pipeline_resource.1,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_index_buffer(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  buffer: u32,
+  #[serde] index_format: wgpu_types::IndexFormat,
+  #[number] offset: u64,
+  #[number] size: Option<u64>,
+) -> Result<WebGpuResult, AnyError> {
+  let buffer_resource = state
+    .resource_table
+    .get::<super::buffer::WebGpuBuffer>(buffer)?;
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  let size = if let Some(size) = size {
+    Some(
+      std::num::NonZeroU64::new(size)
+        .ok_or_else(|| type_error("size must be larger than 0"))?,
+    )
+  } else {
+    None
+  };
+
+  render_pass_resource.0.borrow_mut().set_index_buffer(
+    buffer_resource.1,
+    index_format,
+    offset,
+    size,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_set_vertex_buffer(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  slot: u32,
+  buffer: u32,
+  #[number] offset: u64,
+  #[number] size: Option<u64>,
+) -> Result<WebGpuResult, AnyError> {
+  let buffer_resource = state
+    .resource_table
+    .get::<super::buffer::WebGpuBuffer>(buffer)?;
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  let size = if let Some(size) = size {
+    Some(
+      std::num::NonZeroU64::new(size)
+        .ok_or_else(|| type_error("size must be larger than 0"))?,
+    )
+  } else {
+    None
+  };
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_set_vertex_buffer(
+    &mut render_pass_resource.0.borrow_mut(),
+    slot,
+    buffer_resource.1,
+    offset,
+    size,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_draw(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  vertex_count: u32,
+  instance_count: u32,
+  first_vertex: u32,
+  first_instance: u32,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_draw(
+    &mut render_pass_resource.0.borrow_mut(),
+    vertex_count,
+    instance_count,
+    first_vertex,
+    first_instance,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_draw_indexed(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  index_count: u32,
+  instance_count: u32,
+  first_index: u32,
+  base_vertex: i32,
+  first_instance: u32,
+) -> Result<WebGpuResult, AnyError> {
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_draw_indexed(
+    &mut render_pass_resource.0.borrow_mut(),
+    index_count,
+    instance_count,
+    first_index,
+    base_vertex,
+    first_instance,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_draw_indirect(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  indirect_buffer: u32,
+  #[number] indirect_offset: u64,
+) -> Result<WebGpuResult, AnyError> {
+  let buffer_resource = state
+    .resource_table
+    .get::<super::buffer::WebGpuBuffer>(indirect_buffer)?;
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_draw_indirect(
+    &mut render_pass_resource.0.borrow_mut(),
+    buffer_resource.1,
+    indirect_offset,
+  );
+
+  Ok(WebGpuResult::empty())
+}
+
+#[op2]
+#[serde]
+pub fn op_webgpu_render_pass_draw_indexed_indirect(
+  state: &mut OpState,
+  #[smi] render_pass_rid: ResourceId,
+  indirect_buffer: u32,
+  #[number] indirect_offset: u64,
+) -> Result<WebGpuResult, AnyError> {
+  let buffer_resource = state
+    .resource_table
+    .get::<super::buffer::WebGpuBuffer>(indirect_buffer)?;
+  let render_pass_resource = state
+    .resource_table
+    .get::<WebGpuRenderPass>(render_pass_rid)?;
+
+  wgpu_core::command::render_ffi::wgpu_render_pass_draw_indexed_indirect(
+    &mut render_pass_resource.0.borrow_mut(),
+    buffer_resource.1,
+    indirect_offset,
+  );
+
+  Ok(WebGpuResult::empty())
+}