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125 lines
3.7 KiB
Rust
125 lines
3.7 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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use deno_core::error::bad_resource_id;
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use deno_core::error::AnyError;
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use deno_core::ResourceId;
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use deno_core::ZeroCopyBuf;
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use deno_core::{OpState, Resource};
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use serde::Deserialize;
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use std::borrow::Cow;
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use super::error::WebGpuResult;
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pub(crate) struct WebGpuSampler(pub(crate) wgpu_core::id::SamplerId);
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impl Resource for WebGpuSampler {
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fn name(&self) -> Cow<str> {
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"webGPUSampler".into()
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}
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}
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fn serialize_address_mode(
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address_mode: Option<String>,
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) -> wgpu_types::AddressMode {
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match address_mode {
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Some(address_mode) => match address_mode.as_str() {
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"clamp-to-edge" => wgpu_types::AddressMode::ClampToEdge,
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"repeat" => wgpu_types::AddressMode::Repeat,
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"mirror-repeat" => wgpu_types::AddressMode::MirrorRepeat,
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_ => unreachable!(),
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},
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None => wgpu_types::AddressMode::ClampToEdge,
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}
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}
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fn serialize_filter_mode(
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filter_mode: Option<String>,
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) -> wgpu_types::FilterMode {
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match filter_mode {
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Some(filter_mode) => match filter_mode.as_str() {
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"nearest" => wgpu_types::FilterMode::Nearest,
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"linear" => wgpu_types::FilterMode::Linear,
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_ => unreachable!(),
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},
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None => wgpu_types::FilterMode::Nearest,
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}
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}
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pub fn serialize_compare_function(
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compare: &str,
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) -> wgpu_types::CompareFunction {
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match compare {
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"never" => wgpu_types::CompareFunction::Never,
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"less" => wgpu_types::CompareFunction::Less,
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"equal" => wgpu_types::CompareFunction::Equal,
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"less-equal" => wgpu_types::CompareFunction::LessEqual,
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"greater" => wgpu_types::CompareFunction::Greater,
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"not-equal" => wgpu_types::CompareFunction::NotEqual,
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"greater-equal" => wgpu_types::CompareFunction::GreaterEqual,
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"always" => wgpu_types::CompareFunction::Always,
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_ => unreachable!(),
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}
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct CreateSamplerArgs {
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device_rid: ResourceId,
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label: Option<String>,
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address_mode_u: Option<String>,
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address_mode_v: Option<String>,
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address_mode_w: Option<String>,
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mag_filter: Option<String>,
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min_filter: Option<String>,
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mipmap_filter: Option<String>,
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lod_min_clamp: Option<f32>,
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lod_max_clamp: Option<f32>,
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compare: Option<String>,
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max_anisotropy: Option<u8>,
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}
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pub fn op_webgpu_create_sampler(
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state: &mut OpState,
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args: CreateSamplerArgs,
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_zero_copy: Option<ZeroCopyBuf>,
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) -> Result<WebGpuResult, AnyError> {
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let instance = state.borrow::<super::Instance>();
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let device_resource = state
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.resource_table
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.get::<super::WebGpuDevice>(args.device_rid)
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.ok_or_else(bad_resource_id)?;
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let device = device_resource.0;
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let descriptor = wgpu_core::resource::SamplerDescriptor {
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label: args.label.map(Cow::from),
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address_modes: [
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serialize_address_mode(args.address_mode_u),
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serialize_address_mode(args.address_mode_v),
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serialize_address_mode(args.address_mode_w),
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],
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mag_filter: serialize_filter_mode(args.mag_filter),
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min_filter: serialize_filter_mode(args.min_filter),
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mipmap_filter: serialize_filter_mode(args.mipmap_filter),
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lod_min_clamp: args.lod_min_clamp.unwrap_or(0.0),
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lod_max_clamp: args.lod_max_clamp.unwrap_or(
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wgpu_core::resource::SamplerDescriptor::default().lod_max_clamp,
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),
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compare: args
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.compare
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.as_ref()
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.map(|compare| serialize_compare_function(compare)),
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anisotropy_clamp: std::num::NonZeroU8::new(
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args.max_anisotropy.unwrap_or(0),
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),
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border_color: None, // native-only
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};
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let (sampler, maybe_err) = gfx_select!(device => instance.device_create_sampler(
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device,
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&descriptor,
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std::marker::PhantomData
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));
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let rid = state.resource_table.add(WebGpuSampler(sampler));
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Ok(WebGpuResult::rid_err(rid, maybe_err))
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}
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