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denoland-deno/ext/webgpu/sampler.rs
2024-01-01 19:58:21 +00:00

80 lines
2.1 KiB
Rust

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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::rc::Rc;
use super::error::WebGpuResult;
pub(crate) struct WebGpuSampler(
pub(crate) crate::Instance,
pub(crate) wgpu_core::id::SamplerId,
);
impl Resource for WebGpuSampler {
fn name(&self) -> Cow<str> {
"webGPUSampler".into()
}
fn close(self: Rc<Self>) {
let instance = &self.0;
gfx_select!(self.1 => instance.sampler_drop(self.1));
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CreateSamplerArgs {
device_rid: ResourceId,
label: String,
address_mode_u: wgpu_types::AddressMode,
address_mode_v: wgpu_types::AddressMode,
address_mode_w: wgpu_types::AddressMode,
mag_filter: wgpu_types::FilterMode,
min_filter: wgpu_types::FilterMode,
mipmap_filter: wgpu_types::FilterMode, // TODO: GPUMipmapFilterMode
lod_min_clamp: f32,
lod_max_clamp: f32,
compare: Option<wgpu_types::CompareFunction>,
max_anisotropy: u16,
}
#[op2]
#[serde]
pub fn op_webgpu_create_sampler(
state: &mut OpState,
#[serde] 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.1;
let descriptor = wgpu_core::resource::SamplerDescriptor {
label: Some(Cow::Owned(args.label)),
address_modes: [
args.address_mode_u,
args.address_mode_v,
args.address_mode_w,
],
mag_filter: args.mag_filter,
min_filter: args.min_filter,
mipmap_filter: args.mipmap_filter,
lod_min_clamp: args.lod_min_clamp,
lod_max_clamp: args.lod_max_clamp,
compare: args.compare,
anisotropy_clamp: args.max_anisotropy,
border_color: None, // native-only
};
gfx_put!(device => instance.device_create_sampler(
device,
&descriptor,
()
) => state, WebGpuSampler)
}