cvmts: replace jpeg-turbo native module with new rust module
This module also does threadpooling internally, so we don't need Piscina anymore (which I'm pretty sure was actually bottlenecking.)
This commit is contained in:
modeco80
Generated
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"neon",
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"once_cell",
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"tokio",
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"turbojpeg-sys",
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@@ -0,0 +1,15 @@
|
||||
[package]
|
||||
name = "jpegturbo-rs"
|
||||
description = "Rust powered JPEGTurbo sex"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
exclude = ["index.node"]
|
||||
|
||||
[lib]
|
||||
crate-type = ["cdylib"]
|
||||
|
||||
[dependencies]
|
||||
neon = "1"
|
||||
once_cell = "1.19.0"
|
||||
tokio = { version = "1.38.0", features = [ "rt", "rt-multi-thread" ] }
|
||||
turbojpeg-sys = "1.0.0"
|
||||
Vendored
+15
@@ -0,0 +1,15 @@
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|
||||
interface JpegInputArgs {
|
||||
width: number,
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||||
height: number,
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||||
stride: number, // The width of your input framebuffer OR your image width (if encoding a full image)
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||||
buffer: Buffer
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||||
|
||||
// TODO: Allow different formats, or export a boxed ffi object which can store a format
|
||||
// (i.e: new JpegEncoder(FORMAT_xxx)).
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||||
}
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||||
/// Performs JPEG encoding.
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export function jpegEncode(input: JpegInputArgs) : Promise<Buffer>;
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||||
// TODO: Version that can downscale?
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@@ -0,0 +1,6 @@
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||||
// *sigh*
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||||
import { createRequire } from 'module';
|
||||
const require = createRequire(import.meta.url);
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||||
|
||||
export let {jpegEncode} = require('./index.node');
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|
||||
@@ -0,0 +1,16 @@
|
||||
{
|
||||
"name": "@cvmts/jpegturbo-rs",
|
||||
"version": "0.1.0",
|
||||
"packageManager": "yarn@4.1.1",
|
||||
"type": "module",
|
||||
"main": "index.js",
|
||||
"types": "index.d.ts",
|
||||
"scripts": {
|
||||
"build": "cargo-cp-artifact -nc index.node -- cargo build --release --message-format=json-render-diagnostics",
|
||||
"install": "yarn build",
|
||||
"test": "cargo test"
|
||||
},
|
||||
"devDependencies": {
|
||||
"cargo-cp-artifact": "^0.1"
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,82 @@
|
||||
use turbojpeg_sys::*;
|
||||
|
||||
pub struct Image<'a> {
|
||||
pub buffer: &'a [u8],
|
||||
pub width: u32,
|
||||
pub height: u32,
|
||||
pub stride: u32,
|
||||
pub format: TJPF,
|
||||
}
|
||||
|
||||
pub struct JpegCompressor {
|
||||
handle: tjhandle,
|
||||
subsamp: TJSAMP,
|
||||
quality: u32,
|
||||
}
|
||||
|
||||
unsafe impl Send for JpegCompressor {}
|
||||
|
||||
impl JpegCompressor {
|
||||
pub fn new() -> Self {
|
||||
unsafe {
|
||||
let init = Self {
|
||||
handle: tjInitCompress(),
|
||||
subsamp: TJSAMP_TJSAMP_422,
|
||||
quality: 95,
|
||||
};
|
||||
return init;
|
||||
}
|
||||
}
|
||||
|
||||
pub fn set_quality(&mut self, quality: u32) {
|
||||
self.quality = quality;
|
||||
}
|
||||
|
||||
pub fn set_subsamp(&mut self, samp: TJSAMP) {
|
||||
self.subsamp = samp;
|
||||
}
|
||||
|
||||
pub fn compress_buffer<'a>(&self, image: &Image<'a>) -> Vec<u8> {
|
||||
unsafe {
|
||||
let size: usize =
|
||||
tjBufSize(image.width as i32, image.height as i32, self.subsamp) as usize;
|
||||
let mut vec = Vec::with_capacity(size);
|
||||
|
||||
vec.resize(size, 0);
|
||||
|
||||
let mut ptr: *mut u8 = vec.as_mut_ptr();
|
||||
let mut size: u64 = 0;
|
||||
|
||||
let res = tjCompress2(
|
||||
self.handle,
|
||||
image.buffer.as_ptr(),
|
||||
image.width as i32,
|
||||
image.stride as i32,
|
||||
image.height as i32,
|
||||
image.format,
|
||||
std::ptr::addr_of_mut!(ptr),
|
||||
std::ptr::addr_of_mut!(size),
|
||||
self.subsamp,
|
||||
self.quality as i32,
|
||||
(TJFLAG_NOREALLOC) as i32,
|
||||
);
|
||||
|
||||
// TODO: Result sex so we can actually notify failure
|
||||
if res == -1 {
|
||||
return Vec::new();
|
||||
}
|
||||
|
||||
// Truncate down to the size we're given back
|
||||
vec.truncate(size as usize);
|
||||
return vec;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for JpegCompressor {
|
||||
fn drop(&mut self) {
|
||||
unsafe {
|
||||
tjDestroy(self.handle);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,91 @@
|
||||
use std::sync::{Arc, Mutex};
|
||||
|
||||
use neon::prelude::*;
|
||||
use neon::types::buffer::TypedArray;
|
||||
|
||||
use once_cell::sync::OnceCell;
|
||||
use tokio::runtime::Runtime;
|
||||
|
||||
use std::cell::RefCell;
|
||||
|
||||
mod jpeg_compressor;
|
||||
|
||||
fn runtime<'a, C: Context<'a>>(cx: &mut C) -> NeonResult<&'static Runtime> {
|
||||
static RUNTIME: OnceCell<Runtime> = OnceCell::new();
|
||||
|
||||
RUNTIME
|
||||
.get_or_try_init(Runtime::new)
|
||||
.or_else(|err| cx.throw_error(&err.to_string()))
|
||||
}
|
||||
|
||||
thread_local! {
|
||||
static COMPRESSOR: RefCell<jpeg_compressor::JpegCompressor> = RefCell::new(jpeg_compressor::JpegCompressor::new());
|
||||
}
|
||||
|
||||
fn jpeg_encode_impl<'a>(cx: &mut FunctionContext<'a>) -> JsResult<'a, JsPromise> {
|
||||
let input = cx.argument::<JsObject>(0)?;
|
||||
|
||||
// Get our input arguments here
|
||||
let width: u64 = input.get::<JsNumber, _, _>(cx, "width")?.value(cx) as u64;
|
||||
let height: u64 = input.get::<JsNumber, _, _>(cx, "height")?.value(cx) as u64;
|
||||
let stride: u64 = input.get::<JsNumber, _, _>(cx, "stride")?.value(cx) as u64;
|
||||
let buffer: Handle<JsBuffer> = input.get(cx, "buffer")?;
|
||||
|
||||
let (deferred, promise) = cx.promise();
|
||||
let channel = cx.channel();
|
||||
let runtime = runtime(cx)?;
|
||||
|
||||
let buf = buffer.as_slice(cx);
|
||||
|
||||
let copy: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::with_capacity(buf.len())));
|
||||
|
||||
// Copy from the node buffer to our temporary buffer
|
||||
{
|
||||
let mut locked = copy.lock().unwrap();
|
||||
let cap = locked.capacity();
|
||||
locked.resize(cap, 0);
|
||||
locked.copy_from_slice(buf);
|
||||
}
|
||||
|
||||
// Spawn off a tokio blocking pool thread that will do the work for us
|
||||
runtime.spawn_blocking(move || {
|
||||
let clone = Arc::clone(©);
|
||||
let locked = clone.lock().unwrap();
|
||||
|
||||
let image: jpeg_compressor::Image = jpeg_compressor::Image {
|
||||
buffer: locked.as_slice(),
|
||||
width: width as u32,
|
||||
height: height as u32,
|
||||
|
||||
stride: (stride * 4u64) as u32, // I think?
|
||||
format: turbojpeg_sys::TJPF_TJPF_RGBA,
|
||||
};
|
||||
|
||||
let vec = COMPRESSOR.with(|lazy| {
|
||||
let mut b = lazy.borrow_mut();
|
||||
b.set_quality(35);
|
||||
b.set_subsamp(turbojpeg_sys::TJSAMP_TJSAMP_420);
|
||||
b.compress_buffer(&image)
|
||||
});
|
||||
|
||||
// Fulfill the Javascript promise with our encoded buffer
|
||||
deferred.settle_with(&channel, move |mut cx| {
|
||||
let mut buf = cx.buffer(vec.len())?;
|
||||
let slice = buf.as_mut_slice(&mut cx);
|
||||
slice.copy_from_slice(vec.as_slice());
|
||||
Ok(buf)
|
||||
});
|
||||
});
|
||||
|
||||
Ok(promise)
|
||||
}
|
||||
|
||||
fn jpeg_encode(mut cx: FunctionContext) -> JsResult<JsPromise> {
|
||||
jpeg_encode_impl(&mut cx)
|
||||
}
|
||||
|
||||
#[neon::main]
|
||||
fn main(mut cx: ModuleContext) -> NeonResult<()> {
|
||||
cx.export_function("jpegEncode", jpeg_encode)?;
|
||||
Ok(())
|
||||
}
|
||||
Reference in New Issue
Block a user