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use deno_core::error::AnyError;
use deno_core::ResourceId;
use deno_core::{OpState, Resource};
use serde::Deserialize;
use std::borrow::Cow;
use super::error::WebGpuResult;
pub(crate) struct WebGpuSampler(pub(crate) wgpu_core::id::SamplerId);
impl Resource for WebGpuSampler {
fn name(&self) -> Cow<str> {
"webGPUSampler".into()
}
}
#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
enum GpuAddressMode {
ClampToEdge,
Repeat,
MirrorRepeat,
}
impl From<GpuAddressMode> for wgpu_types::AddressMode {
fn from(value: GpuAddressMode) -> wgpu_types::AddressMode {
match value {
GpuAddressMode::ClampToEdge => wgpu_types::AddressMode::ClampToEdge,
GpuAddressMode::Repeat => wgpu_types::AddressMode::Repeat,
GpuAddressMode::MirrorRepeat => wgpu_types::AddressMode::MirrorRepeat,
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
enum GpuFilterMode {
Nearest,
Linear,
}
impl From<GpuFilterMode> for wgpu_types::FilterMode {
fn from(value: GpuFilterMode) -> wgpu_types::FilterMode {
match value {
GpuFilterMode::Nearest => wgpu_types::FilterMode::Nearest,
GpuFilterMode::Linear => wgpu_types::FilterMode::Linear,
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
pub enum GpuCompareFunction {
Never,
Less,
Equal,
LessEqual,
Greater,
NotEqual,
GreaterEqual,
Always,
}
impl From<GpuCompareFunction> for wgpu_types::CompareFunction {
fn from(value: GpuCompareFunction) -> wgpu_types::CompareFunction {
match value {
GpuCompareFunction::Never => wgpu_types::CompareFunction::Never,
GpuCompareFunction::Less => wgpu_types::CompareFunction::Less,
GpuCompareFunction::Equal => wgpu_types::CompareFunction::Equal,
GpuCompareFunction::LessEqual => wgpu_types::CompareFunction::LessEqual,
GpuCompareFunction::Greater => wgpu_types::CompareFunction::Greater,
GpuCompareFunction::NotEqual => wgpu_types::CompareFunction::NotEqual,
GpuCompareFunction::GreaterEqual => {
wgpu_types::CompareFunction::GreaterEqual
}
GpuCompareFunction::Always => wgpu_types::CompareFunction::Always,
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CreateSamplerArgs {
device_rid: ResourceId,
label: Option<String>,
address_mode_u: GpuAddressMode,
address_mode_v: GpuAddressMode,
address_mode_w: GpuAddressMode,
mag_filter: GpuFilterMode,
min_filter: GpuFilterMode,
mipmap_filter: GpuFilterMode,
lod_min_clamp: f32,
lod_max_clamp: f32,
compare: Option<GpuCompareFunction>,
max_anisotropy: u8,
}
pub fn op_webgpu_create_sampler(
state: &mut OpState,
args: CreateSamplerArgs,
_: (),
) -> Result<WebGpuResult, AnyError> {
let instance = state.borrow::<super::Instance>();
let device_resource = state
.resource_table
.get::<super::WebGpuDevice>(args.device_rid)?;
let device = device_resource.0;
let descriptor = wgpu_core::resource::SamplerDescriptor {
label: args.label.map(Cow::from),
address_modes: [
args.address_mode_u.into(),
args.address_mode_v.into(),
args.address_mode_w.into(),
],
mag_filter: args.mag_filter.into(),
min_filter: args.min_filter.into(),
mipmap_filter: args.mipmap_filter.into(),
lod_min_clamp: args.lod_min_clamp,
lod_max_clamp: args.lod_max_clamp,
compare: args.compare.map(Into::into),
anisotropy_clamp: std::num::NonZeroU8::new(args.max_anisotropy),
border_color: None,
};
gfx_put!(device => instance.device_create_sampler(
device,
&descriptor,
std::marker::PhantomData
) => state, WebGpuSampler)
}