use std::borrow::Cow;
use std::cell::RefCell;
use deno_core::cppgc::Ptr;
use deno_core::op2;
use deno_core::GarbageCollected;
use deno_core::WebIDL;
use deno_error::JsErrorBox;
use wgpu_core::command::PassChannel;
use wgpu_types::TexelCopyBufferInfo;
use crate::buffer::GPUBuffer;
use crate::command_buffer::GPUCommandBuffer;
use crate::compute_pass::GPUComputePassEncoder;
use crate::queue::GPUTexelCopyTextureInfo;
use crate::render_pass::GPULoadOp;
use crate::render_pass::GPURenderPassEncoder;
use crate::webidl::GPUExtent3D;
use crate::Instance;
pub struct GPUCommandEncoder {
pub instance: Instance,
pub error_handler: super::error::ErrorHandler,
pub id: wgpu_core::id::CommandEncoderId,
pub label: String,
}
impl Drop for GPUCommandEncoder {
fn drop(&mut self) {
self.instance.command_encoder_drop(self.id);
}
}
impl GarbageCollected for GPUCommandEncoder {}
#[op2]
impl GPUCommandEncoder {
#[getter]
#[string]
fn label(&self) -> String {
self.label.clone()
}
#[setter]
#[string]
fn label(&self, #[webidl] _label: String) {
}
#[required(1)]
#[cppgc]
fn begin_render_pass(
&self,
#[webidl] descriptor: crate::render_pass::GPURenderPassDescriptor,
) -> Result<GPURenderPassEncoder, JsErrorBox> {
let color_attachments = Cow::Owned(
descriptor
.color_attachments
.into_iter()
.map(|attachment| {
attachment.into_option().map(|attachment| {
wgpu_core::command::RenderPassColorAttachment {
view: attachment.view.id,
resolve_target: attachment.resolve_target.map(|target| target.id),
load_op: attachment
.load_op
.with_default_value(attachment.clear_value.map(Into::into)),
store_op: attachment.store_op.into(),
}
})
})
.collect::<Vec<_>>(),
);
let depth_stencil_attachment =
descriptor.depth_stencil_attachment.map(|attachment| {
if attachment.depth_load_op.as_ref().is_some_and(|op| matches!(op, GPULoadOp::Clear)) && attachment.depth_clear_value.is_none() {
return Err(JsErrorBox::type_error(r#"'depthClearValue' must be specified when 'depthLoadOp' is "clear""#));
}
Ok(wgpu_core::command::RenderPassDepthStencilAttachment {
view: attachment.view.id,
depth: PassChannel {
load_op: attachment.depth_load_op.map(|load_op| load_op.with_value(attachment.depth_clear_value)),
store_op: attachment.depth_store_op.map(Into::into),
read_only: attachment.depth_read_only,
},
stencil: PassChannel {
load_op: attachment.stencil_load_op.map(|load_op| load_op.with_value(Some(attachment.stencil_clear_value))),
store_op: attachment.stencil_store_op.map(Into::into),
read_only: attachment.stencil_read_only,
},
})
}).transpose()?;
let timestamp_writes =
descriptor.timestamp_writes.map(|timestamp_writes| {
wgpu_core::command::PassTimestampWrites {
query_set: timestamp_writes.query_set.id,
beginning_of_pass_write_index: timestamp_writes
.beginning_of_pass_write_index,
end_of_pass_write_index: timestamp_writes.end_of_pass_write_index,
}
});
let wgpu_descriptor = wgpu_core::command::RenderPassDescriptor {
label: crate::transform_label(descriptor.label.clone()),
color_attachments,
depth_stencil_attachment: depth_stencil_attachment.as_ref(),
timestamp_writes: timestamp_writes.as_ref(),
occlusion_query_set: descriptor
.occlusion_query_set
.map(|query_set| query_set.id),
};
let (render_pass, err) = self
.instance
.command_encoder_create_render_pass(self.id, &wgpu_descriptor);
self.error_handler.push_error(err);
Ok(GPURenderPassEncoder {
instance: self.instance.clone(),
error_handler: self.error_handler.clone(),
render_pass: RefCell::new(render_pass),
label: descriptor.label,
})
}
#[cppgc]
fn begin_compute_pass(
&self,
#[webidl] descriptor: crate::compute_pass::GPUComputePassDescriptor,
) -> GPUComputePassEncoder {
let timestamp_writes =
descriptor.timestamp_writes.map(|timestamp_writes| {
wgpu_core::command::PassTimestampWrites {
query_set: timestamp_writes.query_set.id,
beginning_of_pass_write_index: timestamp_writes
.beginning_of_pass_write_index,
end_of_pass_write_index: timestamp_writes.end_of_pass_write_index,
}
});
let wgpu_descriptor = wgpu_core::command::ComputePassDescriptor {
label: crate::transform_label(descriptor.label.clone()),
timestamp_writes: timestamp_writes.as_ref(),
};
let (compute_pass, err) = self
.instance
.command_encoder_create_compute_pass(self.id, &wgpu_descriptor);
self.error_handler.push_error(err);
GPUComputePassEncoder {
instance: self.instance.clone(),
error_handler: self.error_handler.clone(),
compute_pass: RefCell::new(compute_pass),
label: descriptor.label,
}
}
#[required(5)]
fn copy_buffer_to_buffer(
&self,
#[webidl] source: Ptr<GPUBuffer>,
#[webidl(options(enforce_range = true))] source_offset: u64,
#[webidl] destination: Ptr<GPUBuffer>,
#[webidl(options(enforce_range = true))] destination_offset: u64,
#[webidl(options(enforce_range = true))] size: u64,
) {
let err = self
.instance
.command_encoder_copy_buffer_to_buffer(
self.id,
source.id,
source_offset,
destination.id,
destination_offset,
size,
)
.err();
self.error_handler.push_error(err);
}
#[required(3)]
fn copy_buffer_to_texture(
&self,
#[webidl] source: GPUTexelCopyBufferInfo,
#[webidl] destination: GPUTexelCopyTextureInfo,
#[webidl] copy_size: GPUExtent3D,
) {
let source = TexelCopyBufferInfo {
buffer: source.buffer.id,
layout: wgpu_types::TexelCopyBufferLayout {
offset: source.offset,
bytes_per_row: source.bytes_per_row,
rows_per_image: source.rows_per_image,
},
};
let destination = wgpu_types::TexelCopyTextureInfo {
texture: destination.texture.id,
mip_level: destination.mip_level,
origin: destination.origin.into(),
aspect: destination.aspect.into(),
};
let err = self
.instance
.command_encoder_copy_buffer_to_texture(
self.id,
&source,
&destination,
©_size.into(),
)
.err();
self.error_handler.push_error(err);
}
#[required(3)]
fn copy_texture_to_buffer(
&self,
#[webidl] source: GPUTexelCopyTextureInfo,
#[webidl] destination: GPUTexelCopyBufferInfo,
#[webidl] copy_size: GPUExtent3D,
) {
let source = wgpu_types::TexelCopyTextureInfo {
texture: source.texture.id,
mip_level: source.mip_level,
origin: source.origin.into(),
aspect: source.aspect.into(),
};
let destination = TexelCopyBufferInfo {
buffer: destination.buffer.id,
layout: wgpu_types::TexelCopyBufferLayout {
offset: destination.offset,
bytes_per_row: destination.bytes_per_row,
rows_per_image: destination.rows_per_image,
},
};
let err = self
.instance
.command_encoder_copy_texture_to_buffer(
self.id,
&source,
&destination,
©_size.into(),
)
.err();
self.error_handler.push_error(err);
}
#[required(3)]
fn copy_texture_to_texture(
&self,
#[webidl] source: GPUTexelCopyTextureInfo,
#[webidl] destination: GPUTexelCopyTextureInfo,
#[webidl] copy_size: GPUExtent3D,
) {
let source = wgpu_types::TexelCopyTextureInfo {
texture: source.texture.id,
mip_level: source.mip_level,
origin: source.origin.into(),
aspect: source.aspect.into(),
};
let destination = wgpu_types::TexelCopyTextureInfo {
texture: destination.texture.id,
mip_level: destination.mip_level,
origin: destination.origin.into(),
aspect: destination.aspect.into(),
};
let err = self
.instance
.command_encoder_copy_texture_to_texture(
self.id,
&source,
&destination,
©_size.into(),
)
.err();
self.error_handler.push_error(err);
}
#[required(1)]
fn clear_buffer(
&self,
#[webidl] buffer: Ptr<GPUBuffer>,
#[webidl(default = 0, options(enforce_range = true))] offset: u64,
#[webidl(options(enforce_range = true))] size: Option<u64>,
) {
let err = self
.instance
.command_encoder_clear_buffer(self.id, buffer.id, offset, size)
.err();
self.error_handler.push_error(err);
}
#[required(5)]
fn resolve_query_set(
&self,
#[webidl] query_set: Ptr<super::query_set::GPUQuerySet>,
#[webidl(options(enforce_range = true))] first_query: u32,
#[webidl(options(enforce_range = true))] query_count: u32,
#[webidl] destination: Ptr<GPUBuffer>,
#[webidl(options(enforce_range = true))] destination_offset: u64,
) {
let err = self
.instance
.command_encoder_resolve_query_set(
self.id,
query_set.id,
first_query,
query_count,
destination.id,
destination_offset,
)
.err();
self.error_handler.push_error(err);
}
#[cppgc]
fn finish(
&self,
#[webidl] descriptor: crate::command_buffer::GPUCommandBufferDescriptor,
) -> GPUCommandBuffer {
let wgpu_descriptor = wgpu_types::CommandBufferDescriptor {
label: crate::transform_label(descriptor.label.clone()),
};
let (id, err) = self
.instance
.command_encoder_finish(self.id, &wgpu_descriptor);
self.error_handler.push_error(err);
GPUCommandBuffer {
instance: self.instance.clone(),
id,
label: descriptor.label,
consumed: Default::default(),
}
}
fn push_debug_group(&self, #[webidl] group_label: String) {
let err = self
.instance
.command_encoder_push_debug_group(self.id, &group_label)
.err();
self.error_handler.push_error(err);
}
#[fast]
fn pop_debug_group(&self) {
let err = self.instance.command_encoder_pop_debug_group(self.id).err();
self.error_handler.push_error(err);
}
fn insert_debug_marker(&self, #[webidl] marker_label: String) {
let err = self
.instance
.command_encoder_insert_debug_marker(self.id, &marker_label)
.err();
self.error_handler.push_error(err);
}
}
#[derive(WebIDL)]
#[webidl(dictionary)]
pub(crate) struct GPUCommandEncoderDescriptor {
#[webidl(default = String::new())]
pub label: String,
}
#[derive(WebIDL)]
#[webidl(dictionary)]
pub(crate) struct GPUTexelCopyBufferInfo {
pub buffer: Ptr<GPUBuffer>,
#[webidl(default = 0)]
#[options(enforce_range = true)]
offset: u64,
#[options(enforce_range = true)]
bytes_per_row: Option<u32>,
#[options(enforce_range = true)]
rows_per_image: Option<u32>,
}