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denoland-deno/ext/webgpu/render_bundle.rs
2025-01-14 11:30:35 +01:00

416 lines
11 KiB
Rust

// Copyright 2018-2025 the Deno authors. MIT license.
use std::borrow::Cow;
use std::cell::RefCell;
use std::num::NonZeroU64;
use deno_core::cppgc::Ptr;
use deno_core::op2;
use deno_core::v8;
use deno_core::webidl::IntOptions;
use deno_core::webidl::Nullable;
use deno_core::webidl::WebIdlConverter;
use deno_core::webidl::WebIdlError;
use deno_core::webidl::WebIdlInterfaceConverter;
use deno_core::GarbageCollected;
use deno_core::WebIDL;
use deno_error::JsErrorBox;
use crate::buffer::GPUBuffer;
use crate::texture::GPUTextureFormat;
use crate::Instance;
pub struct GPURenderBundleEncoder {
pub instance: Instance,
pub error_handler: super::error::ErrorHandler,
pub encoder: RefCell<Option<wgpu_core::command::RenderBundleEncoder>>,
pub label: String,
}
impl GarbageCollected for GPURenderBundleEncoder {}
#[op2]
impl GPURenderBundleEncoder {
#[getter]
#[string]
fn label(&self) -> String {
self.label.clone()
}
#[setter]
#[string]
fn label(&self, #[webidl] _label: String) {
// TODO(@crowlKats): no-op, needs wpgu to implement changing the label
}
#[cppgc]
fn finish(
&self,
#[webidl] descriptor: GPURenderBundleDescriptor,
) -> GPURenderBundle {
let wgpu_descriptor = wgpu_core::command::RenderBundleDescriptor {
label: Some(Cow::Owned(descriptor.label.clone())),
};
let (id, err) = self.instance.render_bundle_encoder_finish(
self.encoder.borrow_mut().take().unwrap(),
&wgpu_descriptor,
None,
);
self.error_handler.push_error(err);
GPURenderBundle {
instance: self.instance.clone(),
id,
label: descriptor.label.clone(),
}
}
fn push_debug_group(
&self,
#[webidl] group_label: String,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
let label = std::ffi::CString::new(group_label).unwrap();
unsafe {
wgpu_core::command::bundle_ffi::wgpu_render_bundle_push_debug_group(
encoder,
label.as_ptr(),
);
}
Ok(())
}
#[fast]
fn pop_debug_group(&self) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_pop_debug_group(encoder);
Ok(())
}
fn insert_debug_marker(
&self,
#[webidl] marker_label: String,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
let label = std::ffi::CString::new(marker_label).unwrap();
unsafe {
wgpu_core::command::bundle_ffi::wgpu_render_bundle_insert_debug_marker(
encoder,
label.as_ptr(),
);
}
Ok(())
}
fn set_bind_group<'a>(
&self,
scope: &mut v8::HandleScope<'a>,
#[webidl(options(enforce_range = true))] index: u32,
#[webidl] bind_group: Nullable<Ptr<crate::bind_group::GPUBindGroup>>,
dynamic_offsets: v8::Local<'a, v8::Value>,
dynamic_offsets_data_start: v8::Local<'a, v8::Value>,
dynamic_offsets_data_length: v8::Local<'a, v8::Value>,
) -> Result<(), SetBindGroupError> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
const PREFIX: &str =
"Failed to execute 'setBindGroup' on 'GPUComputePassEncoder'";
if let Ok(uint_32) = dynamic_offsets.try_cast::<v8::Uint32Array>() {
let start = u64::convert(
scope,
dynamic_offsets_data_start,
Cow::Borrowed(PREFIX),
(|| Cow::Borrowed("Argument 4")).into(),
&IntOptions {
clamp: false,
enforce_range: true,
},
)? as usize;
let len = u32::convert(
scope,
dynamic_offsets_data_length,
Cow::Borrowed(PREFIX),
(|| Cow::Borrowed("Argument 5")).into(),
&IntOptions {
clamp: false,
enforce_range: true,
},
)? as usize;
let ab = uint_32.buffer(scope).unwrap();
let ptr = ab.data().unwrap();
let ab_len = ab.byte_length() / 4;
let data =
unsafe { std::slice::from_raw_parts(ptr.as_ptr() as _, ab_len) };
let offsets = &data[start..(start + len)];
unsafe {
wgpu_core::command::bundle_ffi::wgpu_render_bundle_set_bind_group(
encoder,
index,
bind_group.into_option().map(|bind_group| bind_group.id),
offsets.as_ptr(),
offsets.len(),
);
}
} else {
let offsets = <Option<Vec<u32>>>::convert(
scope,
dynamic_offsets,
Cow::Borrowed(PREFIX),
(|| Cow::Borrowed("Argument 3")).into(),
&IntOptions {
clamp: false,
enforce_range: true,
},
)?
.unwrap_or_default();
unsafe {
wgpu_core::command::bundle_ffi::wgpu_render_bundle_set_bind_group(
encoder,
index,
bind_group.into_option().map(|bind_group| bind_group.id),
offsets.as_ptr(),
offsets.len(),
);
}
}
Ok(())
}
fn set_pipeline(
&self,
#[webidl] pipeline: Ptr<crate::render_pipeline::GPURenderPipeline>,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_set_pipeline(
encoder,
pipeline.id,
);
Ok(())
}
#[required(2)]
fn set_index_buffer(
&self,
#[webidl] buffer: Ptr<GPUBuffer>,
#[webidl] index_format: crate::render_pipeline::GPUIndexFormat,
#[webidl(default = 0, options(enforce_range = true))] offset: u64,
#[webidl(options(enforce_range = true))] size: Option<u64>,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
encoder.set_index_buffer(
buffer.id,
index_format.into(),
offset,
size.and_then(NonZeroU64::new),
);
Ok(())
}
#[required(2)]
fn set_vertex_buffer(
&self,
#[webidl(options(enforce_range = true))] slot: u32,
#[webidl] buffer: Ptr<GPUBuffer>, // TODO: support nullable buffer
#[webidl(default = 0, options(enforce_range = true))] offset: u64,
#[webidl(options(enforce_range = true))] size: Option<u64>,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_set_vertex_buffer(
encoder,
slot,
buffer.id,
offset,
size.and_then(NonZeroU64::new),
);
Ok(())
}
#[required(1)]
fn draw(
&self,
#[webidl(options(enforce_range = true))] vertex_count: u32,
#[webidl(default = 1, options(enforce_range = true))] instance_count: u32,
#[webidl(default = 0, options(enforce_range = true))] first_vertex: u32,
#[webidl(default = 0, options(enforce_range = true))] first_instance: u32,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_draw(
encoder,
vertex_count,
instance_count,
first_vertex,
first_instance,
);
Ok(())
}
#[required(1)]
fn draw_indexed(
&self,
#[webidl(options(enforce_range = true))] index_count: u32,
#[webidl(default = 1, options(enforce_range = true))] instance_count: u32,
#[webidl(default = 0, options(enforce_range = true))] first_index: u32,
#[webidl(default = 0, options(enforce_range = true))] base_vertex: i32,
#[webidl(default = 0, options(enforce_range = true))] first_instance: u32,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_draw_indexed(
encoder,
index_count,
instance_count,
first_index,
base_vertex,
first_instance,
);
Ok(())
}
#[required(2)]
fn draw_indirect(
&self,
#[webidl] indirect_buffer: Ptr<GPUBuffer>,
#[webidl(options(enforce_range = true))] indirect_offset: u64,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_draw_indirect(
encoder,
indirect_buffer.id,
indirect_offset,
);
Ok(())
}
#[required(2)]
fn draw_indexed_indirect(
&self,
#[webidl] indirect_buffer: Ptr<GPUBuffer>,
#[webidl(options(enforce_range = true))] indirect_offset: u64,
) -> Result<(), JsErrorBox> {
let mut encoder = self.encoder.borrow_mut();
let encoder = encoder.as_mut().ok_or_else(|| {
JsErrorBox::generic("Encoder has already been finished")
})?;
wgpu_core::command::bundle_ffi::wgpu_render_bundle_draw_indexed_indirect(
encoder,
indirect_buffer.id,
indirect_offset,
);
Ok(())
}
}
#[derive(WebIDL)]
#[webidl(dictionary)]
pub(crate) struct GPURenderBundleEncoderDescriptor {
#[webidl(default = String::new())]
pub label: String,
pub color_formats: Vec<Nullable<GPUTextureFormat>>,
pub depth_stencil_format: Option<GPUTextureFormat>,
#[webidl(default = 1)]
#[options(enforce_range = true)]
pub sample_count: u32,
#[webidl(default = false)]
pub depth_read_only: bool,
#[webidl(default = false)]
pub stencil_read_only: bool,
}
#[derive(Debug, thiserror::Error, deno_error::JsError)]
enum SetBindGroupError {
#[class(inherit)]
#[error(transparent)]
WebIDL(#[from] WebIdlError),
#[class(inherit)]
#[error(transparent)]
Other(#[from] JsErrorBox),
}
pub struct GPURenderBundle {
pub instance: Instance,
pub id: wgpu_core::id::RenderBundleId,
pub label: String,
}
impl Drop for GPURenderBundle {
fn drop(&mut self) {
self.instance.render_bundle_drop(self.id);
}
}
impl WebIdlInterfaceConverter for GPURenderBundle {
const NAME: &'static str = "GPURenderBundle";
}
impl GarbageCollected for GPURenderBundle {}
#[op2]
impl GPURenderBundle {
#[getter]
#[string]
fn label(&self) -> String {
self.label.clone()
}
#[setter]
#[string]
fn label(&self, #[webidl] _label: String) {
// TODO(@crowlKats): no-op, needs wpgu to implement changing the label
}
}
#[derive(WebIDL)]
#[webidl(dictionary)]
pub(crate) struct GPURenderBundleDescriptor {
#[webidl(default = String::new())]
pub label: String,
}