Experiment with autovectorization

Add Node 14 for SIMD tests
Make build-cpp.sh executable
2020-08-11 13:17:42 +01:00 · 2020-08-05 17:20:33 +01:00 · 2020-08-04 13:35:58 +01:00 · 2020-08-04 09:51:26 +01:00 · 2020-07-31 19:49:14 +01:00 · 2020-07-31 18:33:20 +01:00
190 changed files with 12122 additions and 13416 deletions
--- a/.babelrc
+++ b/.babelrc
@ -1,13 +0,0 @@
-{
-  "plugins": [
-    "transform-class-properties",
-    "transform-react-constant-elements",
-    "transform-react-remove-prop-types",
-    [
-      "transform-react-jsx",
-      {
-        "pragma": "h"
-      }
-    ]
-  ]
-}
--- a/.clang-format
+++ b/.clang-format
@ -0,0 +1,2 @@
+BasedOnStyle: Chromium
+ColumnLimit: 100
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -0,0 +1,36 @@
+---
+name: Bug report
+about: Something is not working as expected
+labels: 
+
+---
+
+**Before you start**
+Please take a look at the [FAQ](https://github.com/GoogleChromeLabs/squoosh/wiki/FAQ) as well as the already opened issues! If nothing fits your problem, go ahead and fill out the following template:
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Version:**
+ - OS w/ version: [e.g. iOS 12]
+ - Browser w/ version [e.g. Chrome 70]
+ - Node version: [e.g. 10.11.0]
+ - npm version: [e.g. 6.4.1]
+
+**Is your issue related to the quality of image compression?**
+Please attach original and output images (you can drag & drop to attach). 
+- Original image 
+- Output image from Squoosh
+
+**Additional context, screenshots, screencasts**
+Add any other context about the problem here.
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -0,0 +1,18 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+labels: 
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Does other service/app have this feature?**
+Add any service you know/use that has this feature (We want to know for research)
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
--- a/.nvmrc
+++ b/.nvmrc
@ -0,0 +1 @@
+10.16.2
--- a/.travis.yml
+++ b/.travis.yml
@ -1,5 +1,7 @@
 language: node_js
-node_js:
- node
 cache: npm
-script: npm run build || npm run build # scss ts definitions need to be generated before an actual build
+script: npm run build
+after_success: npm run sizereport
+os:
+  - linux
+  - windows
--- a/README.md
+++ b/README.md
@ -1,5 +1,32 @@
-# Squoosh!
+# [Squoosh]!

-Squoosh will be an image compression web app that allows you to dive into the
-advanced options provided by various image compressors.
+[Squoosh] is an image compression web app that allows you to dive into the advanced options provided
+by various image compressors.

+# Privacy
+
+Google Analytics is used to record the following:
+
+* [Basic visit data](https://support.google.com/analytics/answer/6004245?ref_topic=2919631).
+* Before and after image size once an image is downloaded. These values are rounded to the nearest
+  kilobyte.
+* If install is available, when Squoosh is installed, and what method was used to install Squoosh.
+
+Image compression is handled locally; no additional data is sent to the server.
+
+# Building locally
+
+Clone the repo, and:
+
+```sh
+npm install
+npm run build
+```
+
+You can run the development server with:
+
+```sh
+npm start
+```
+
+[Squoosh]: https://squoosh.app
--- a/_redirects.ejs
+++ b/_redirects.ejs
@ -0,0 +1,2 @@
+/index.html / 301
+/* /index.html 301
--- a/codecs/README.md
+++ b/codecs/README.md
@ -11,6 +11,6 @@ $ npm install
 $ npm run build
 ```

-This will build two files: `<codec name>_<enc or dec>.js` and `<codec name>_<enc or dec>.wasm`. It will most likely be necessary to set [`Module["locateFile"]`](https://kripken.github.io/emscripten-site/docs/api_reference/module.html#affecting-execution) to sucessfully load the `.wasm` file. When the `.js` file is loaded, a global `<codec name>_<enc or dec>` is created with the same API as an [Emscripten `Module`](https://kripken.github.io/emscripten-site/docs/api_reference/module.html).
+This will build two files: `<codec name>_<enc or dec>.js` and `<codec name>_<enc or dec>.wasm`. It will most likely be necessary to set [`Module["locateFile"]`](https://kripken.github.io/emscripten-site/docs/api_reference/module.html#affecting-execution) to successfully load the `.wasm` file. When the `.js` file is loaded, a global `<codec name>_<enc or dec>` is created with the same API as an [Emscripten `Module`](https://kripken.github.io/emscripten-site/docs/api_reference/module.html).

 Each codec will document its API in its README.
--- a/codecs/build-cpp.sh
+++ b/codecs/build-cpp.sh
@ -0,0 +1,3 @@
+#!/bin/sh -e
+docker build -t squoosh-cpp - < ../cpp.Dockerfile
+docker run --rm -v $PWD:/src squoosh-cpp
--- a/codecs/build-rust.sh
+++ b/codecs/build-rust.sh
@ -0,0 +1,4 @@
+set -e
+
+docker build -t squoosh-rust - < ../rust.Dockerfile
+docker run --rm -v $PWD:/src squoosh-rust "$@"
--- a/codecs/cpp.Dockerfile
+++ b/codecs/cpp.Dockerfile
@ -0,0 +1,11 @@
+FROM emscripten/emsdk:1.39.19
+RUN apt-get update && apt-get install -qqy autoconf libtool pkg-config
+ENV CFLAGS "-Os -flto"
+ENV CXXFLAGS "${CFLAGS} -std=c++17"
+ENV LDFLAGS "${CFLAGS}"
+# Build and cache standard libraries with these flags
+RUN emcc ${CXXFLAGS} --bind -xc++ /dev/null -o /dev/null
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
+RUN /bin/bash -ic 'nvm install 14.7.0'
+WORKDIR /src
+CMD ["sh", "-c", "emmake make -j`nproc`"]
--- a/codecs/hqx/.gitignore
+++ b/codecs/hqx/.gitignore
@ -0,0 +1 @@
+/target
--- a/codecs/hqx/Cargo.lock
+++ b/codecs/hqx/Cargo.lock
@ -0,0 +1,289 @@
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+"checksum wasm-bindgen-test 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)" = "a2d9693b63a742d481c7f80587e057920e568317b2806988c59cd71618bc26c1"
+"checksum wasm-bindgen-test-macro 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)" = "0789dac148a8840bbcf9efe13905463b733fa96543bfbf263790535c11af7ba5"
+"checksum web-sys 0.3.42 (registry+https://github.com/rust-lang/crates.io-index)" = "8be2398f326b7ba09815d0b403095f34dd708579220d099caae89be0b32137b2"
+"checksum wee_alloc 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "dbb3b5a6b2bb17cb6ad44a2e68a43e8d2722c997da10e928665c72ec6c0a0b8e"
+"checksum winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
--- a/codecs/hqx/Cargo.toml
+++ b/codecs/hqx/Cargo.toml
@ -0,0 +1,37 @@
+[package]
+name = "squooshhqx"
+version = "0.1.0"
+authors = ["Surma <surma@surma.link>"]
+
+[lib]
+crate-type = ["cdylib"]
+
+[features]
+default = ["console_error_panic_hook", "wee_alloc"]
+
+[dependencies]
+cfg-if = "0.1.2"
+wasm-bindgen = "0.2.38"
+# lazy_static = "1.0.0"
+hqx = {git = "https://github.com/CryZe/wasmboy-rs", tag="v0.1.2"}
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = { version = "0.1.1", optional = true }
+
+# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
+# compared to the default allocator's ~10K. It is slower than the default
+# allocator, however.
+#
+# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
+wee_alloc = { version = "0.4.2", optional = true }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.2"
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"
+lto = true
--- a/codecs/hqx/Dockerfile
+++ b/codecs/hqx/Dockerfile
@ -0,0 +1,11 @@
+# This is intentionally an old version of Rust. Newer versions
+# generate _significantly_ bigger Wasm binaries.
+FROM rust:1.37
+RUN rustup target add wasm32-unknown-unknown
+RUN curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
+RUN mkdir /opt/binaryen && \
+ curl -L https://github.com/WebAssembly/binaryen/releases/download/1.38.32/binaryen-1.38.32-x86-linux.tar.gz  | tar -xzf - -C /opt/binaryen --strip 1
+
+ENV PATH="/opt/binaryen:${PATH}"
+WORKDIR /src
--- a/codecs/hqx/build.sh
+++ b/codecs/hqx/build.sh
@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -e
+
+echo "============================================="
+echo "Compiling wasm"
+echo "============================================="
+(
+  wasm-pack build -- --verbose --locked
+  rm pkg/.gitignore
+)
+echo "============================================="
+echo "Compiling wasm  done"
+echo "============================================="
+
+echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+echo "Did you update your docker image?"
+echo "Run \`docker pull ubuntu\`"
+echo "Run \`docker pull rust\`"
+echo "Run \`docker build -t squoosh-hqx .\`"
+echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
--- a/codecs/hqx/package-lock.json
+++ b/codecs/hqx/package-lock.json
@ -0,0 +1,4 @@
+{
+  "name": "hqx",
+  "lockfileVersion": 1
+}
--- a/codecs/hqx/package.json
+++ b/codecs/hqx/package.json
@ -0,0 +1,7 @@
+{
+  "name": "hqx",
+  "scripts": {
+    "build:image": "docker build -t squoosh-hqx - < Dockerfile",
+    "build": "docker run --rm -v $(pwd):/src squoosh-hqx ./build.sh"
+  }
+}
--- a/codecs/hqx/pkg/package.json
+++ b/codecs/hqx/pkg/package.json
@ -0,0 +1,15 @@
+{
+  "name": "squooshhqx",
+  "collaborators": [
+    "Surma <surma@surma.link>"
+  ],
+  "version": "0.1.0",
+  "files": [
+    "squooshhqx_bg.wasm",
+    "squooshhqx.js",
+    "squooshhqx.d.ts"
+  ],
+  "module": "squooshhqx.js",
+  "types": "squooshhqx.d.ts",
+  "sideEffects": false
+}
--- a/codecs/hqx/pkg/squooshhqx.d.ts
+++ b/codecs/hqx/pkg/squooshhqx.d.ts
@ -0,0 +1,10 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+* @param {Uint32Array} input_image
+* @param {number} input_width
+* @param {number} input_height
+* @param {number} factor
+* @returns {Uint32Array}
+*/
+export function resize(input_image: Uint32Array, input_width: number, input_height: number, factor: number): Uint32Array;
--- a/codecs/hqx/pkg/squooshhqx.js
+++ b/codecs/hqx/pkg/squooshhqx.js
@ -0,0 +1,2 @@
+import * as wasm from "./squooshhqx_bg.wasm";
+export * from "./squooshhqx_bg.js";
--- a/codecs/hqx/pkg/squooshhqx_bg.d.ts
+++ b/codecs/hqx/pkg/squooshhqx_bg.d.ts
@ -0,0 +1,6 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export function resize(a: number, b: number, c: number, d: number, e: number, f: number): void;
+export function __wbindgen_malloc(a: number): number;
+export function __wbindgen_free(a: number, b: number): void;
--- a/codecs/hqx/pkg/squooshhqx_bg.js
+++ b/codecs/hqx/pkg/squooshhqx_bg.js
@ -0,0 +1,48 @@
+import * as wasm from './squooshhqx_bg.wasm';
+
+let cachegetUint32Memory0 = null;
+function getUint32Memory0() {
+    if (cachegetUint32Memory0 === null || cachegetUint32Memory0.buffer !== wasm.memory.buffer) {
+        cachegetUint32Memory0 = new Uint32Array(wasm.memory.buffer);
+    }
+    return cachegetUint32Memory0;
+}
+
+let WASM_VECTOR_LEN = 0;
+
+function passArray32ToWasm0(arg, malloc) {
+    const ptr = malloc(arg.length * 4);
+    getUint32Memory0().set(arg, ptr / 4);
+    WASM_VECTOR_LEN = arg.length;
+    return ptr;
+}
+
+let cachegetInt32Memory0 = null;
+function getInt32Memory0() {
+    if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.memory.buffer) {
+        cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
+    }
+    return cachegetInt32Memory0;
+}
+
+function getArrayU32FromWasm0(ptr, len) {
+    return getUint32Memory0().subarray(ptr / 4, ptr / 4 + len);
+}
+/**
+* @param {Uint32Array} input_image
+* @param {number} input_width
+* @param {number} input_height
+* @param {number} factor
+* @returns {Uint32Array}
+*/
+export function resize(input_image, input_width, input_height, factor) {
+    var ptr0 = passArray32ToWasm0(input_image, wasm.__wbindgen_malloc);
+    var len0 = WASM_VECTOR_LEN;
+    wasm.resize(8, ptr0, len0, input_width, input_height, factor);
+    var r0 = getInt32Memory0()[8 / 4 + 0];
+    var r1 = getInt32Memory0()[8 / 4 + 1];
+    var v1 = getArrayU32FromWasm0(r0, r1).slice();
+    wasm.__wbindgen_free(r0, r1 * 4);
+    return v1;
+}
+
--- a/codecs/hqx/pkg/squooshhqx_bg.wasm
+++ b/codecs/hqx/pkg/squooshhqx_bg.wasm
--- a/codecs/hqx/src/lib.rs
+++ b/codecs/hqx/src/lib.rs
@ -0,0 +1,55 @@
+extern crate cfg_if;
+extern crate hqx;
+extern crate wasm_bindgen;
+
+mod utils;
+
+use cfg_if::cfg_if;
+use wasm_bindgen::prelude::*;
+
+cfg_if! {
+    // When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
+    // allocator.
+    if #[cfg(feature = "wee_alloc")] {
+        extern crate wee_alloc;
+        #[global_allocator]
+        static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+    }
+}
+
+#[wasm_bindgen]
+#[no_mangle]
+pub fn resize(
+    input_image: Vec<u32>,
+    input_width: usize,
+    input_height: usize,
+    factor: usize,
+) -> Vec<u32> {
+    let num_output_pixels = input_width * input_height * factor * factor;
+    let mut output_image = Vec::<u32>::with_capacity(num_output_pixels * 4);
+    output_image.resize(num_output_pixels, 0);
+
+    match factor {
+        2 => hqx::hq2x(
+            input_image.as_slice(),
+            output_image.as_mut_slice(),
+            input_width,
+            input_height,
+        ),
+        3 => hqx::hq3x(
+            input_image.as_slice(),
+            output_image.as_mut_slice(),
+            input_width,
+            input_height,
+        ),
+        4 => hqx::hq4x(
+            input_image.as_slice(),
+            output_image.as_mut_slice(),
+            input_width,
+            input_height,
+        ),
+        _ => unreachable!(),
+    };
+
+    return output_image;
+}
--- a/codecs/hqx/src/utils.rs
+++ b/codecs/hqx/src/utils.rs
@ -0,0 +1,17 @@
+use cfg_if::cfg_if;
+
+cfg_if! {
+    // When the `console_error_panic_hook` feature is enabled, we can call the
+    // `set_panic_hook` function at least once during initialization, and then
+    // we will get better error messages if our code ever panics.
+    //
+    // For more details see
+    // https://github.com/rustwasm/console_error_panic_hook#readme
+    if #[cfg(feature = "console_error_panic_hook")] {
+        extern crate console_error_panic_hook;
+        pub use self::console_error_panic_hook::set_once as set_panic_hook;
+    } else {
+        #[inline]
+        pub fn set_panic_hook() {}
+    }
+}
--- a/codecs/imagequant/Makefile
+++ b/codecs/imagequant/Makefile
@ -0,0 +1,40 @@
+CODEC_URL := https://github.com/ImageOptim/libimagequant/archive/2.12.1.tar.gz
+CODEC_DIR := node_modules/libimagequant
+CODEC_OUT_RELATIVE := libimagequant.a
+CODEC_OUT := $(addprefix $(CODEC_DIR)/, $(CODEC_OUT_RELATIVE))
+OUT_JS := imagequant.js
+OUT_WASM := $(OUT_JS:.js=.wasm)
+
+.PHONY: all clean
+
+all: $(OUT_JS)
+
+%.js: %.cpp $(CODEC_OUT)
+	$(CXX) \
+		-I $(CODEC_DIR) \
+		${CXXFLAGS} \
+		${LDFLAGS} \
+		--bind \
+		--closure 1 \
+		-s ALLOW_MEMORY_GROWTH=1 \
+		-s MODULARIZE=1 \
+		-s 'EXPORT_NAME="$(basename $(@F))"' \
+		-o $@ \
+		$+
+
+$(CODEC_OUT): $(CODEC_DIR)/config.mk
+	$(MAKE) -C $(CODEC_DIR) $(CODEC_OUT_RELATIVE)
+
+$(CODEC_DIR)/config.mk: $(CODEC_DIR)/configure
+	cd $(CODEC_DIR) && ./configure \
+		--disable-sse
+
+$(CODEC_DIR)/configure: $(CODEC_DIR)
+
+$(CODEC_DIR):
+	mkdir -p $@
+	curl -sL $(CODEC_URL) | tar xz --strip 1 -C $@
+
+clean:
+	$(RM) $(OUT_JS) $(OUT_WASM)
+	$(MAKE) -C $(CODEC_DIR) clean
--- a/codecs/imagequant/README.md
+++ b/codecs/imagequant/README.md
@ -24,7 +24,3 @@ Quantizes the given images, using at most `numColors`, a value between 2 and 256
 ### `RawImage zx_quantize(std::string buffer, int image_width, int image_height, float dithering)`

 ???
-
-### `void free_result()`
-
-Frees the result created by `quantize()`.
--- a/codecs/imagequant/build.sh
+++ b/codecs/imagequant/build.sh
@ -1,48 +0,0 @@
-#!/bin/bash
-
-set -e
-
-export OPTIMIZE="-Os"
-export LDFLAGS="${OPTIMIZE}"
-export CFLAGS="${OPTIMIZE}"
-export CPPFLAGS="${OPTIMIZE}"
-
-echo "============================================="
-echo "Compiling libimagequant"
-echo "============================================="
-(
-  emcc \
-    --bind \
-    ${OPTIMIZE} \
-    -s ALLOW_MEMORY_GROWTH=1 \
-    -s MODULARIZE=1 \
-    -s 'EXPORT_NAME="imagequant"' \
-    -I node_modules/libimagequant \
-    --std=c99 \
-    -c \
-    node_modules/libimagequant/{libimagequant,pam,mediancut,blur,mempool,kmeans,nearest}.c
-)
-echo "============================================="
-echo "Compiling wasm module"
-echo "============================================="
-(
-  emcc \
-    --bind \
-    ${OPTIMIZE} \
-    -s ALLOW_MEMORY_GROWTH=1 \
-    -s MODULARIZE=1 \
-    -s 'EXPORT_NAME="imagequant"' \
-    -I node_modules/libimagequant \
-    -o ./imagequant.js \
-    --std=c++11 *.o \
-    -x c++ \
-    imagequant.cpp
-)
-echo "============================================="
-echo "Compiling wasm module done"
-echo "============================================="
-
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
-echo "Did you update your docker image?"
-echo "Run \`docker pull trzeci/emscripten\`"
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
--- a/codecs/imagequant/example.html
+++ b/codecs/imagequant/example.html
@ -28,7 +28,6 @@
    // const rawImage = Module.quantize(image.data, image.width, image.height, 256, 1.0);
    const rawImage = Module.zx_quantize(image.data, image.width, image.height, 1.0);
    console.log('done');
-    Module.free_result();

    const imageData = new ImageData(new Uint8ClampedArray(rawImage.buffer), rawImage.width, rawImage.height);
    const canvas = document.createElement('canvas');
--- a/codecs/imagequant/imagequant.cpp
+++ b/codecs/imagequant/imagequant.cpp
@ -1,95 +1,87 @@
-#include "emscripten/bind.h"
-#include "emscripten/val.h"
-#include <stdlib.h>
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
 #include <inttypes.h>
 #include <limits.h>
 #include <math.h>
+#include <stdlib.h>

 #include "libimagequant.h"

 using namespace emscripten;

 int version() {
-  return (((LIQ_VERSION/10000) % 100) << 16) |
-         (((LIQ_VERSION/100  ) % 100) << 8) |
-         (((LIQ_VERSION/1    ) % 100) << 0);
+  return (((LIQ_VERSION / 10000) % 100) << 16) | (((LIQ_VERSION / 100) % 100) << 8) |
+         (((LIQ_VERSION / 1) % 100) << 0);
 }

-class RawImage {
-public:
-  val buffer;
-  int width;
-  int height;
+thread_local const val Uint8ClampedArray = val::global("Uint8ClampedArray");

-  RawImage(val b, int w, int h)
-    : buffer(b), width(w), height(h) {}
-};
+#define liq_ptr(T) std::unique_ptr<T, std::integral_constant<decltype(&T##_destroy), T##_destroy>>

+using liq_attr_ptr = liq_ptr(liq_attr);
+using liq_image_ptr = liq_ptr(liq_image);
+using liq_result_ptr = liq_ptr(liq_result);

-liq_attr *attr;
-liq_image *image;
-liq_result *res;
-uint8_t* result;
-RawImage quantize(std::string rawimage, int image_width, int image_height, int num_colors, float dithering) {
-  const uint8_t* image_buffer = (uint8_t*)rawimage.c_str();
-  int size = image_width * image_height;
-  attr = liq_attr_create();
-  image = liq_image_create_rgba(attr, image_buffer, image_width, image_height, 0);
-  liq_set_max_colors(attr, num_colors);
+liq_result_ptr liq_image_quantize(liq_image* image, liq_attr* attr) {
+  liq_result* res = nullptr;
  liq_image_quantize(image, attr, &res);
-  liq_set_dithering_level(res, dithering);
-  uint8_t* image8bit = (uint8_t*) malloc(size);
-  result = (uint8_t*) malloc(size * 4);
-  liq_write_remapped_image(res, image, image8bit, size);
-  const liq_palette *pal = liq_get_palette(res);
+  return liq_result_ptr(res);
+}
+
+val quantize(std::string rawimage,
+             int image_width,
+             int image_height,
+             int num_colors,
+             float dithering) {
+  auto image_buffer = (const liq_color*)rawimage.c_str();
+  int size = image_width * image_height;
+  liq_attr_ptr attr(liq_attr_create());
+  liq_image_ptr image(
+      liq_image_create_rgba(attr.get(), image_buffer, image_width, image_height, 0));
+  liq_set_max_colors(attr.get(), num_colors);
+  auto res = liq_image_quantize(image.get(), attr.get());
+  liq_set_dithering_level(res.get(), dithering);
+  std::vector<uint8_t> image8bit(size);
+  std::vector<liq_color> result(size);
+  liq_write_remapped_image(res.get(), image.get(), image8bit.data(), image8bit.size());
+  auto pal = liq_get_palette(res.get());
  // Turn palletted image back into an RGBA image
-  for(int i = 0; i < size; i++) {
-    result[i * 4 + 0] = pal->entries[image8bit[i]].r;
-    result[i * 4 + 1] = pal->entries[image8bit[i]].g;
-    result[i * 4 + 2] = pal->entries[image8bit[i]].b;
-    result[i * 4 + 3] = pal->entries[image8bit[i]].a;
+  for (int i = 0; i < size; i++) {
+    result[i] = pal->entries[image8bit[i]];
  }
-  free(image8bit);
-  liq_result_destroy(res);
-  liq_image_destroy(image);
-  liq_attr_destroy(attr);
-  return {
-    val(typed_memory_view(image_width*image_height*4, result)),
-    image_width,
-    image_height
-  };
+  return Uint8ClampedArray.new_(
+      typed_memory_view(result.size() * sizeof(liq_color), (const uint8_t*)result.data()));
 }

 const liq_color zx_colors[] = {
-  {.a = 255, .r = 0, .g = 0, .b = 0},       // regular black
-  {.a = 255, .r = 0, .g = 0, .b = 215},     // regular blue
-  {.a = 255, .r = 215, .g = 0, .b = 0},     // regular red
-  {.a = 255, .r = 215, .g = 0, .b = 215},   // regular magenta
-  {.a = 255, .r = 0, .g = 215, .b = 0},     // regular green
-  {.a = 255, .r = 0, .g = 215, .b = 215},   // regular cyan
-  {.a = 255, .r = 215, .g = 215, .b = 0},   // regular yellow
-  {.a = 255, .r = 215, .g = 215, .b = 215}, // regular white
-  {.a = 255, .r = 0, .g = 0, .b = 255},     // bright blue
-  {.a = 255, .r = 255, .g = 0, .b = 0},     // bright red
-  {.a = 255, .r = 255, .g = 0, .b = 255},   // bright magenta
-  {.a = 255, .r = 0, .g = 255, .b = 0},     // bright green
-  {.a = 255, .r = 0, .g = 255, .b = 255},   // bright cyan
-  {.a = 255, .r = 255, .g = 255, .b = 0},   // bright yellow
-  {.a = 255, .r = 255, .g = 255, .b = 255}  // bright white
+    {.r = 0, .g = 0, .b = 0, .a = 255},        // regular black
+    {.r = 0, .g = 0, .b = 215, .a = 255},      // regular blue
+    {.r = 215, .g = 0, .b = 0, .a = 255},      // regular red
+    {.r = 215, .g = 0, .b = 215, .a = 255},    // regular magenta
+    {.r = 0, .g = 215, .b = 0, .a = 255},      // regular green
+    {.r = 0, .g = 215, .b = 215, .a = 255},    // regular cyan
+    {.r = 215, .g = 215, .b = 0, .a = 255},    // regular yellow
+    {.r = 215, .g = 215, .b = 215, .a = 255},  // regular white
+    {.r = 0, .g = 0, .b = 255, .a = 255},      // bright blue
+    {.r = 255, .g = 0, .b = 0, .a = 255},      // bright red
+    {.r = 255, .g = 0, .b = 255, .a = 255},    // bright magenta
+    {.r = 0, .g = 255, .b = 0, .a = 255},      // bright green
+    {.r = 0, .g = 255, .b = 255, .a = 255},    // bright cyan
+    {.r = 255, .g = 255, .b = 0, .a = 255},    // bright yellow
+    {.r = 255, .g = 255, .b = 255, .a = 255}   // bright white
 };

-uint8_t block[8 * 8 * 4];
-
 /**
- * The ZX has one bit per pixel, but can assign two colours to an 8x8 block. The two colours must
- * both be 'regular' or 'bright'. Black exists as both regular and bright.
+ * The ZX has one bit per pixel, but can assign two colours to an 8x8 block. The
+ * two colours must both be 'regular' or 'bright'. Black exists as both regular
+ * and bright.
 */
-RawImage zx_quantize(std::string rawimage, int image_width, int image_height, float dithering) {
-  const uint8_t* image_buffer = (uint8_t*) rawimage.c_str();
+val zx_quantize(std::string rawimage, int image_width, int image_height, float dithering) {
+  auto image_buffer = (const liq_color*)rawimage.c_str();
  int size = image_width * image_height;
-  int bytes_per_pixel = 4;
-  result = (uint8_t*) malloc(size * bytes_per_pixel);
-  uint8_t* image8bit = (uint8_t*) malloc(8 * 8);
+  liq_color block[8 * 8];
+  uint8_t image8bit[8 * 8];
+  std::vector<liq_color> result(size);

  // For each 8x8 grid
  for (int block_start_y = 0; block_start_y < image_height; block_start_y += 8) {
@ -99,7 +91,8 @@ RawImage zx_quantize(std::string rawimage, int image_width, int image_height, fl
      int block_width = 8;
      int block_height = 8;

-      // If the block hangs off the right/bottom of the image dimensions, make it smaller to fit.
+      // If the block hangs off the right/bottom of the image dimensions, make
+      // it smaller to fit.
      if (block_start_y + block_height > image_height) {
        block_height = image_height - block_start_y;
      }
@ -111,26 +104,22 @@ RawImage zx_quantize(std::string rawimage, int image_width, int image_height, fl
      // For each pixel in that block:
      for (int y = block_start_y; y < block_start_y + block_height; y++) {
        for (int x = block_start_x; x < block_start_x + block_width; x++) {
-          int pixel_start = (y * image_width * bytes_per_pixel) + (x * bytes_per_pixel);
+          int pixel_start = (y * image_width) + x;
          int smallest_distance = INT_MAX;
          int winning_index = -1;

          // Copy pixel data for quantizing later
          block[block_index++] = image_buffer[pixel_start];
-          block[block_index++] = image_buffer[pixel_start + 1];
-          block[block_index++] = image_buffer[pixel_start + 2];
-          block[block_index++] = image_buffer[pixel_start + 3];

          // Which zx color is this pixel closest to?
          for (int color_index = 0; color_index < 15; color_index++) {
            liq_color color = zx_colors[color_index];
+            liq_color pixel = image_buffer[pixel_start];

-            // Using Euclidean distance. LibQuant has better methods, but it requires conversion to
-            // LAB, so I don't think it's worth it.
+            // Using Euclidean distance. LibQuant has better methods, but it
+            // requires conversion to LAB, so I don't think it's worth it.
            int distance =
-              pow(color.r - image_buffer[pixel_start + 0], 2) +
-              pow(color.g - image_buffer[pixel_start + 1], 2) +
-              pow(color.b - image_buffer[pixel_start + 2], 2);
+                pow(color.r - pixel.r, 2) + pow(color.g - pixel.g, 2) + pow(color.b - pixel.b, 2);

            if (distance < smallest_distance) {
              winning_index = color_index;
@ -151,7 +140,8 @@ RawImage zx_quantize(std::string rawimage, int image_width, int image_height, fl

      for (int color_index = 0; color_index < 15; color_index++) {
        if (color_popularity[color_index] > highest_popularity) {
-          // Store this as the most popular pixel, and demote the current values:
+          // Store this as the most popular pixel, and demote the current
+          // values:
          third_color_index = second_color_index;
          third_highest_popularity = second_highest_popularity;
          second_color_index = first_color_index;
@ -169,8 +159,8 @@ RawImage zx_quantize(std::string rawimage, int image_width, int image_height, fl
        }
      }

-      // ZX images can't mix bright and regular colours, except black which appears in both.
-      // Resolve any conflict:
+      // ZX images can't mix bright and regular colours, except black which
+      // appears in both. Resolve any conflict:
      while (1) {
        // If either colour is black, there's no conflict to resolve.
        if (first_color_index != 0 && second_color_index != 0) {
@ -183,63 +173,44 @@ RawImage zx_quantize(std::string rawimage, int image_width, int image_height, fl
          }
        }

-        // If, during conflict resolving, we now have two of the same colour (because we initially
-        // selected the bright & regular version of the same colour), retry again with the third
-        // most popular colour.
+        // If, during conflict resolving, we now have two of the same colour
+        // (because we initially selected the bright & regular version of the
+        // same colour), retry again with the third most popular colour.
        if (first_color_index == second_color_index) {
          second_color_index = third_color_index;
-        } else break;
+        } else
+          break;
      }

      // Quantize
-      attr = liq_attr_create();
-      image = liq_image_create_rgba(attr, block, block_width, block_height, 0);
-      liq_set_max_colors(attr, 2);
-      liq_image_add_fixed_color(image, zx_colors[first_color_index]);
-      liq_image_add_fixed_color(image, zx_colors[second_color_index]);
-      liq_image_quantize(image, attr, &res);
-      liq_set_dithering_level(res, dithering);
-      liq_write_remapped_image(res, image, image8bit, size);
-      const liq_palette *pal = liq_get_palette(res);
+      liq_attr_ptr attr(liq_attr_create());
+      liq_image_ptr image(liq_image_create_rgba(attr.get(), block, block_width, block_height, 0));
+      liq_set_max_colors(attr.get(), 2);
+      liq_image_add_fixed_color(image.get(), zx_colors[first_color_index]);
+      liq_image_add_fixed_color(image.get(), zx_colors[second_color_index]);
+      auto res = liq_image_quantize(image.get(), attr.get());
+      liq_set_dithering_level(res.get(), dithering);
+      liq_write_remapped_image(res.get(), image.get(), image8bit, size);
+      auto pal = liq_get_palette(res.get());

-      // Turn palletted image back into an RGBA image, and write it into the full size result image.
-      for(int y = 0; y < block_height; y++) {
-        for(int x = 0; x < block_width; x++) {
+      // Turn palletted image back into an RGBA image, and write it into the
+      // full size result image.
+      for (int y = 0; y < block_height; y++) {
+        for (int x = 0; x < block_width; x++) {
          int image8BitPos = y * block_width + x;
-          int resultStartPos = ((block_start_y + y) * bytes_per_pixel * image_width) + ((block_start_x + x) * bytes_per_pixel);
-          result[resultStartPos + 0] = pal->entries[image8bit[image8BitPos]].r;
-          result[resultStartPos + 1] = pal->entries[image8bit[image8BitPos]].g;
-          result[resultStartPos + 2] = pal->entries[image8bit[image8BitPos]].b;
-          result[resultStartPos + 3] = pal->entries[image8bit[image8BitPos]].a;
+          int resultStartPos = ((block_start_y + y) * image_width) + (block_start_x + x);
+          result[resultStartPos] = pal->entries[image8bit[image8BitPos]];
        }
      }
-
-      liq_result_destroy(res);
-      liq_image_destroy(image);
-      liq_attr_destroy(attr);
    }
  }

-  free(image8bit);
-  return {
-    val(typed_memory_view(image_width*image_height*4, result)),
-    image_width,
-    image_height
-  };
-}
-
-void free_result() {
-  free(result);
+  return Uint8ClampedArray.new_(
+      typed_memory_view(result.size() * sizeof(liq_color), (const uint8_t*)result.data()));
 }

 EMSCRIPTEN_BINDINGS(my_module) {
-  class_<RawImage>("RawImage")
-    .property("buffer", &RawImage::buffer)
-    .property("width", &RawImage::width)
-    .property("height", &RawImage::height);
-
  function("quantize", &quantize);
  function("zx_quantize", &zx_quantize);
  function("version", &version);
-  function("free_result", &free_result);
 }
--- a/codecs/imagequant/imagequant.d.ts
+++ b/codecs/imagequant/imagequant.d.ts
@ -1,15 +1,6 @@
-interface RawImage {
-  buffer: Uint8Array;
-  width: number;
-  height: number;
-}
-
 interface QuantizerModule extends EmscriptenWasm.Module {
-  quantize(data: BufferSource, width: number, height: number, numColors: number, dither: number): RawImage;
-  zx_quantize(data: BufferSource, width: number, height: number, dither: number): RawImage;
-  free_result(): void;
+  quantize(data: BufferSource, width: number, height: number, numColors: number, dither: number): Uint8ClampedArray;
+  zx_quantize(data: BufferSource, width: number, height: number, dither: number): Uint8ClampedArray;
 }

 export default function(opts: EmscriptenWasm.ModuleOpts): QuantizerModule;
-
-
--- a/codecs/imagequant/imagequant.js
+++ b/codecs/imagequant/imagequant.js
--- a/codecs/imagequant/imagequant.wasm
+++ b/codecs/imagequant/imagequant.wasm
--- a/codecs/imagequant/package-lock.json
+++ b/codecs/imagequant/package-lock.json
--- a/codecs/imagequant/package.json
+++ b/codecs/imagequant/package.json
@ -1,13 +1,6 @@
 {
  "name": "imagequant",
  "scripts": {
-    "install": "napa",
-    "build": "docker run --rm -v $(pwd):/src trzeci/emscripten ./build.sh"
-  },
-  "napa": {
-    "libimagequant": "ImageOptim/libimagequant#2.12.1"
-  },
-  "devDependencies": {
-    "napa": "^3.0.0"
+    "build": "../build-cpp.sh"
  }
 }
--- a/codecs/mozjpeg_enc/.emscripten
+++ b/codecs/mozjpeg_enc/.emscripten
@ -0,0 +1,13 @@
+import os
+emsdk_path = "/emsdk/"
+#NODE_JS = emsdk_path + '/node/12.18.1_64bit/bin/node'
+# We need a newer version of Node that supports the most recent iteration of Wasm SIMD
+# and need to enable that experimental support via flag so that autoconf can successfully
+# detect SIMD support.
+NODE_JS=["/root/.nvm/versions/node/v14.7.0/bin/node", "--experimental-wasm-simd"]
+LLVM_ROOT = emsdk_path + '/upstream/bin'
+BINARYEN_ROOT = emsdk_path + '/upstream'
+EMSCRIPTEN_ROOT = emsdk_path + '/upstream/emscripten'
+TEMP_DIR = emsdk_path + '/tmp'
+COMPILER_ENGINE = NODE_JS
+JS_ENGINES = [NODE_JS]
--- a/codecs/mozjpeg_enc/Makefile
+++ b/codecs/mozjpeg_enc/Makefile
@ -0,0 +1,63 @@
+CODEC_URL := https://github.com/mozilla/mozjpeg/archive/v3.3.1.tar.gz
+CODEC_DIR := node_modules/mozjpeg
+CODEC_OUT_RELATIVE := .libs/libjpeg.a rdswitch.o
+CODEC_OUT := $(addprefix $(CODEC_DIR)/, $(CODEC_OUT_RELATIVE))
+OUT_JS := mozjpeg_enc_simd.js
+OUT_WASM := $(OUT_JS:.js=.wasm)
+
+CFLAGS += -msimd128 -msse --em-config /src/.emscripten
+CXXFLAGS += -msimd128 -msse --em-config /src/.emscripten
+
+#CFLAGS += --em-config /src/.emscripten
+#CXXFLAGS += --em-config /src/.emscripten
+
+.PHONY: all clean
+
+all: $(OUT_JS)
+
+%.js: %.cpp $(CODEC_OUT)
+	# We just to disable the overridden NODE_JS binary because 
+	# `--closure 1` can’t handle arrays in `.emscripten` it seems.
+	# https://github.com/emscripten-core/emsdk/issues/583
+	export EM_NODE_JS='/root/.nvm/versions/node/v14.7.0/bin/node' && \
+	$(CXX) \
+		-I $(CODEC_DIR) \
+		${CXXFLAGS} \
+		${LDFLAGS} \
+		--bind \
+		--closure 1 \
+		-s ALLOW_MEMORY_GROWTH=1 \
+		-s MODULARIZE=1 \
+		-s EXPORT_ES6=1 \
+		-s 'EXPORT_NAME="$(basename $(@F))"' \
+		-o $@ \
+		$+
+
+# This one is a bit special: there is no rule for .libs/libjpeg.a
+#  so we use libjpeg.la which implicitly builds that one instead.
+$(CODEC_DIR)/.libs/libjpeg.a: $(CODEC_DIR)/Makefile
+	$(MAKE) -C $(CODEC_DIR) libjpeg.la
+
+$(CODEC_DIR)/rdswitch.o: $(CODEC_DIR)/Makefile
+	$(MAKE) -C $(CODEC_DIR) rdswitch.o
+
+$(CODEC_DIR)/Makefile: $(CODEC_DIR)/configure
+	cd $(CODEC_DIR) && ./configure \
+		--disable-shared \
+		--without-turbojpeg \
+		--without-simd \
+		--without-arith-enc \
+		--without-arith-dec
+
+$(CODEC_DIR)/configure: $(CODEC_DIR)/configure.ac
+	cd $(CODEC_DIR) && autoreconf -iv
+
+$(CODEC_DIR)/configure.ac: $(CODEC_DIR)
+
+$(CODEC_DIR):
+	mkdir -p $@
+	curl -sL $(CODEC_URL) | tar xz --strip 1 -C $@
+
+clean:
+	$(RM) $(OUT_JS) $(OUT_WASM)
+	$(MAKE) -C $(CODEC_DIR) clean
--- a/codecs/mozjpeg_enc/README.md
+++ b/codecs/mozjpeg_enc/README.md
@ -17,10 +17,6 @@ See `example.html`

 Returns the version of MozJPEG as a number. va.b.c is encoded as 0x0a0b0c

-### `void free_result()`
-
-Frees the result created by `encode()`.
-
 ### `Uint8Array encode(std::string image_in, int image_width, int image_height, MozJpegOptions opts)`

 Encodes the given image with given dimension to JPEG. Options looks like this:
--- a/codecs/mozjpeg_enc/bench.d8.js
+++ b/codecs/mozjpeg_enc/bench.d8.js
@ -0,0 +1,62 @@
+import mozjpeg from "./mozjpeg_enc.js";
+import mozjpegSimd from "./mozjpeg_enc_simd.js";
+
+const width = 2048;
+const height = 2048;
+const size = width * height * 4;
+const data = new Uint8ClampedArray(size);
+for(let i = 0; i < size; i++) {
+	data[i] = Math.random() * 256;
+}
+
+mozjpeg({
+	onRuntimeInitialized() {
+		const start = performance.now();
+		const result = this.encode(data, width, height, {
+		  quality: 75,
+		  baseline: false,
+		  arithmetic: false,
+		  progressive: true,
+		  optimize_coding: true,
+		  smoothing: 0,
+		  color_space: 3,
+		  quant_table: 3,
+		  trellis_multipass: false,
+		  trellis_opt_zero: false,
+		  trellis_opt_table: false,
+		  trellis_loops: 1,
+		  auto_subsample: true,
+		  chroma_subsample: 2,
+		  separate_chroma_quality: false,
+		  chroma_quality: 75,
+		});
+		const end = performance.now();
+		console.log("No SIMD", end - start);
+	}
+})
+
+mozjpegSimd({
+	onRuntimeInitialized() {
+		const start = performance.now();
+		const result = this.encode(data, width, height, {
+		  quality: 75,
+		  baseline: false,
+		  arithmetic: false,
+		  progressive: true,
+		  optimize_coding: true,
+		  smoothing: 0,
+		  color_space: 3,
+		  quant_table: 3,
+		  trellis_multipass: false,
+		  trellis_opt_zero: false,
+		  trellis_opt_table: false,
+		  trellis_loops: 1,
+		  auto_subsample: true,
+		  chroma_subsample: 2,
+		  separate_chroma_quality: false,
+		  chroma_quality: 75,
+		});
+		const end = performance.now();
+		console.log("SIMD", end - start);
+	}
+})
--- a/codecs/mozjpeg_enc/build.sh
+++ b/codecs/mozjpeg_enc/build.sh
@ -1,53 +0,0 @@
-#!/bin/bash
-
-set -e
-
-export OPTIMIZE="-Os"
-export LDFLAGS="${OPTIMIZE}"
-export CFLAGS="${OPTIMIZE}"
-export CPPFLAGS="${OPTIMIZE}"
-
-apt-get update
-apt-get install -qqy autoconf libtool libpng-dev pkg-config
-
-echo "============================================="
-echo "Compiling mozjpeg"
-echo "============================================="
-(
-  cd node_modules/mozjpeg
-  autoreconf -fiv
-  emconfigure ./configure --without-simd
-  emmake make libjpeg.la
-)
-echo "============================================="
-echo "Compiling mozjpeg done"
-echo "============================================="
-
-echo "============================================="
-echo "Compiling wasm bindings"
-echo "============================================="
-(
-  emcc \
-    --bind \
-    ${OPTIMIZE} \
-    -s WASM=1 \
-    -s ALLOW_MEMORY_GROWTH=1 \
-    -s MODULARIZE=1 \
-    -s 'EXPORT_NAME="mozjpeg_enc"' \
-    -I node_modules/mozjpeg \
-    -o ./mozjpeg_enc.js \
-    -Wno-deprecated-register \
-    -Wno-writable-strings \
-    node_modules/mozjpeg/rdswitch.c \
-    -x c++ -std=c++11 \
-    mozjpeg_enc.cpp \
-    node_modules/mozjpeg/.libs/libjpeg.a
-)
-echo "============================================="
-echo "Compiling wasm bindings done"
-echo "============================================="
-
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
-echo "Did you update your docker image?"
-echo "Run \`docker pull trzeci/emscripten\`"
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
--- a/codecs/mozjpeg_enc/example.html
+++ b/codecs/mozjpeg_enc/example.html
@ -1,26 +1,14 @@
 <!doctype html>
 <script src='mozjpeg_enc.js'></script>
 <script>
-  const module = mozjpeg_enc();
-
-  async function loadImage(src) {
-    // Load image
-    const img = document.createElement('img');
-    img.src = src;
-    await new Promise(resolve => img.onload = resolve);
-    // Make canvas same size as image
-    const canvas = document.createElement('canvas');
-    [canvas.width, canvas.height] = [img.width, img.height];
-    // Draw image onto canvas
-    const ctx = canvas.getContext('2d');
-    ctx.drawImage(img, 0, 0);
-    return ctx.getImageData(0, 0, img.width, img.height);
-  }
-
-  module.onRuntimeInitialized = async _ => {
-    console.log('Version:', module.version().toString(16));
+	const module = mozjpeg_enc({
+	loadFile() {
+		return "./mozjpeg_enc.wasm";
+	},
+  async onRuntimeInitialized() {
+    //console.log('Version:', module.version().toString(16));
    const image = await loadImage('../example.png');
-    const result = module.encode(image.data, image.width, image.height, {
+    const result = this.encode(image.data, image.width, image.height, {
      quality: 75,
      baseline: false,
      arithmetic: false,
@ -44,5 +32,21 @@
    const img = document.createElement('img');
    img.src = blobURL;
    document.body.appendChild(img);
-  };
+  }
+	});
+
+  async function loadImage(src) {
+    // Load image
+    const img = document.createElement('img');
+    img.src = src;
+    await new Promise(resolve => img.onload = resolve);
+    // Make canvas same size as image
+    const canvas = document.createElement('canvas');
+    [canvas.width, canvas.height] = [img.width, img.height];
+    // Draw image onto canvas
+    const ctx = canvas.getContext('2d');
+    ctx.drawImage(img, 0, 0);
+    return ctx.getImageData(0, 0, img.width, img.height);
+  }
+
 </script>
--- a/codecs/mozjpeg_enc/mozjpeg_enc.cpp
+++ b/codecs/mozjpeg_enc/mozjpeg_enc.cpp
@ -1,18 +1,22 @@
 #include <emscripten/bind.h>
 #include <emscripten/val.h>
-#include <stdlib.h>
 #include <inttypes.h>
-#include <stdio.h>
 #include <setjmp.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "config.h"
 #include "jpeglib.h"
+
+extern "C" {
 #include "cdjpeg.h"
+}

 using namespace emscripten;

-// MozJPEG doesn’t expose a numeric version, so I have to do some fun C macro hackery to turn it
-// into a string. More details here: https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html
+// MozJPEG doesn’t expose a numeric version, so I have to do some fun C macro
+// hackery to turn it into a string. More details here:
+// https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html
 #define xstr(s) str(s)
 #define str(s) #s

@ -39,8 +43,8 @@ int version() {
  char buffer[] = xstr(MOZJPEG_VERSION);
  int version = 0;
  int last_index = 0;
-  for(int i = 0; i < strlen(buffer); i++) {
-    if(buffer[i] == '.') {
+  for (int i = 0; i < strlen(buffer); i++) {
+    if (buffer[i] == '.') {
      buffer[i] = '\0';
      version = version << 8 | atoi(&buffer[last_index]);
      buffer[i] = '.';
@ -51,16 +55,16 @@ int version() {
  return version;
 }

-uint8_t* last_result;
-struct jpeg_compress_struct cinfo;
+thread_local const val Uint8Array = val::global("Uint8Array");

 val encode(std::string image_in, int image_width, int image_height, MozJpegOptions opts) {
-  uint8_t* image_buffer = (uint8_t*) image_in.c_str();
+  uint8_t* image_buffer = (uint8_t*)image_in.c_str();

  // The code below is basically the `write_JPEG_file` function from
  // https://github.com/mozilla/mozjpeg/blob/master/example.c
  // I just write to memory instead of a file.

+  /* Step 1: allocate and initialize JPEG compression object */

  /* This struct contains the JPEG compression parameters and pointers to
   * working space (which is allocated as needed by the JPEG library).
@ -68,6 +72,7 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
   * compression/decompression processes, in existence at once.  We refer
   * to any one struct (and its associated working data) as a "JPEG object".
   */
+  jpeg_compress_struct cinfo;
  /* This struct represents a JPEG error handler.  It is declared separately
   * because applications often want to supply a specialized error handler
   * (see the second half of this file for an example).  But here we just
@ -76,15 +81,7 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
   * Note that this struct must live as long as the main JPEG parameter
   * struct, to avoid dangling-pointer problems.
   */
-  struct jpeg_error_mgr jerr;
-  /* More stuff */
-  JSAMPROW row_pointer[1];      /* pointer to JSAMPLE row[s] */
-  int row_stride;               /* physical row width in image buffer */
-  uint8_t* output;
-  unsigned long size;
-
-  /* Step 1: allocate and initialize JPEG compression object */
-
+  jpeg_error_mgr jerr;
  /* We have to set up the error handler first, in case the initialization
   * step fails.  (Unlikely, but it could happen if you are out of memory.)
   * This routine fills in the contents of struct jerr, and returns jerr's
@ -106,6 +103,8 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
  //   fprintf(stderr, "can't open %s\n", filename);
  //   exit(1);
  // }
+  uint8_t* output = nullptr;
+  unsigned long size = 0;
  jpeg_mem_dest(&cinfo, &output, &size);

  /* Step 3: set parameters for compression */
@ -113,17 +112,17 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
  /* First we supply a description of the input image.
   * Four fields of the cinfo struct must be filled in:
   */
-  cinfo.image_width = image_width;      /* image width and height, in pixels */
+  cinfo.image_width = image_width; /* image width and height, in pixels */
  cinfo.image_height = image_height;
-  cinfo.input_components = 4;           /* # of color components per pixel */
-  cinfo.in_color_space = JCS_EXT_RGBA;  /* colorspace of input image */
+  cinfo.input_components = 4;          /* # of color components per pixel */
+  cinfo.in_color_space = JCS_EXT_RGBA; /* colorspace of input image */
  /* Now use the library's routine to set default compression parameters.
   * (You must set at least cinfo.in_color_space before calling this,
   * since the defaults depend on the source color space.)
   */
  jpeg_set_defaults(&cinfo);

-  jpeg_set_colorspace(&cinfo, (J_COLOR_SPACE) opts.color_space);
+  jpeg_set_colorspace(&cinfo, (J_COLOR_SPACE)opts.color_space);

  if (opts.quant_table != -1) {
    jpeg_c_set_int_param(&cinfo, JINT_BASE_QUANT_TBL_IDX, opts.quant_table);
@ -143,17 +142,17 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
  jpeg_c_set_bool_param(&cinfo, JBOOLEAN_TRELLIS_Q_OPT, opts.trellis_opt_table);
  jpeg_c_set_int_param(&cinfo, JINT_TRELLIS_NUM_LOOPS, opts.trellis_loops);

-  // A little hacky to build a string for this, but it means we can use set_quality_ratings which
-  // does some useful heuristic stuff.
+  // A little hacky to build a string for this, but it means we can use
+  // set_quality_ratings which does some useful heuristic stuff.
  std::string quality_str = std::to_string(opts.quality);

  if (opts.separate_chroma_quality && opts.color_space == JCS_YCbCr) {
    quality_str += "," + std::to_string(opts.chroma_quality);
  }

-  char const *pqual = quality_str.c_str();
+  char const* pqual = quality_str.c_str();

-  set_quality_ratings(&cinfo, (char*) pqual, opts.baseline);
+  set_quality_ratings(&cinfo, (char*)pqual, opts.baseline);

  if (!opts.auto_subsample && opts.color_space == JCS_YCbCr) {
    cinfo.comp_info[0].h_samp_factor = opts.chroma_subsample;
@ -181,54 +180,54 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
   * To keep things simple, we pass one scanline per call; you can pass
   * more if you wish, though.
   */
-  row_stride = image_width * 4; /* JSAMPLEs per row in image_buffer */
+  int row_stride = image_width * 4; /* JSAMPLEs per row in image_buffer */

  while (cinfo.next_scanline < cinfo.image_height) {
    /* jpeg_write_scanlines expects an array of pointers to scanlines.
     * Here the array is only one element long, but you could pass
     * more than one scanline at a time if that's more convenient.
     */
-    row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride];
-    (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
+
+    JSAMPROW row_pointer =
+        &image_buffer[cinfo.next_scanline * row_stride]; /* pointer to JSAMPLE row[s] */
+    (void)jpeg_write_scanlines(&cinfo, &row_pointer, 1);
  }

  /* Step 6: Finish compression */

  jpeg_finish_compress(&cinfo);
+
  /* Step 7: release JPEG compression object */

-  last_result = output;
+  auto js_result = Uint8Array.new_(typed_memory_view(size, output));

-  /* And we're done! */
-  return val(typed_memory_view(size, output));
-}
-
-void free_result() {
  /* This is an important step since it will release a good deal of memory. */
  jpeg_destroy_compress(&cinfo);
+  free(output);
+
+  /* And we're done! */
+  return js_result;
 }

 EMSCRIPTEN_BINDINGS(my_module) {
  value_object<MozJpegOptions>("MozJpegOptions")
-    .field("quality", &MozJpegOptions::quality)
-    .field("baseline", &MozJpegOptions::baseline)
-    .field("arithmetic", &MozJpegOptions::arithmetic)
-    .field("progressive", &MozJpegOptions::progressive)
-    .field("optimize_coding", &MozJpegOptions::optimize_coding)
-    .field("smoothing", &MozJpegOptions::smoothing)
-    .field("color_space", &MozJpegOptions::color_space)
-    .field("quant_table", &MozJpegOptions::quant_table)
-    .field("trellis_multipass", &MozJpegOptions::trellis_multipass)
-    .field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero)
-    .field("trellis_opt_table", &MozJpegOptions::trellis_opt_table)
-    .field("trellis_loops", &MozJpegOptions::trellis_loops)
-    .field("chroma_subsample", &MozJpegOptions::chroma_subsample)
-    .field("auto_subsample", &MozJpegOptions::auto_subsample)
-    .field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
-    .field("chroma_quality", &MozJpegOptions::chroma_quality)
-    ;
+      .field("quality", &MozJpegOptions::quality)
+      .field("baseline", &MozJpegOptions::baseline)
+      .field("arithmetic", &MozJpegOptions::arithmetic)
+      .field("progressive", &MozJpegOptions::progressive)
+      .field("optimize_coding", &MozJpegOptions::optimize_coding)
+      .field("smoothing", &MozJpegOptions::smoothing)
+      .field("color_space", &MozJpegOptions::color_space)
+      .field("quant_table", &MozJpegOptions::quant_table)
+      .field("trellis_multipass", &MozJpegOptions::trellis_multipass)
+      .field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero)
+      .field("trellis_opt_table", &MozJpegOptions::trellis_opt_table)
+      .field("trellis_loops", &MozJpegOptions::trellis_loops)
+      .field("chroma_subsample", &MozJpegOptions::chroma_subsample)
+      .field("auto_subsample", &MozJpegOptions::auto_subsample)
+      .field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
+      .field("chroma_quality", &MozJpegOptions::chroma_quality);

  function("version", &version);
  function("encode", &encode);
-  function("free_result", &free_result);
 }
--- a/codecs/mozjpeg_enc/mozjpeg_enc.d.ts
+++ b/codecs/mozjpeg_enc/mozjpeg_enc.d.ts
@ -2,7 +2,6 @@ import { EncodeOptions } from '../../src/codecs/mozjpeg/encoder-meta';

 interface MozJPEGModule extends EmscriptenWasm.Module {
  encode(data: BufferSource, width: number, height: number, options: EncodeOptions): Uint8Array;
-  free_result(): void;
 }

 export default function(opts: EmscriptenWasm.ModuleOpts): MozJPEGModule;
--- a/codecs/mozjpeg_enc/mozjpeg_enc.js
+++ b/codecs/mozjpeg_enc/mozjpeg_enc.js
--- a/codecs/mozjpeg_enc/mozjpeg_enc.wasm
+++ b/codecs/mozjpeg_enc/mozjpeg_enc.wasm
--- a/codecs/mozjpeg_enc/package-lock.json
+++ b/codecs/mozjpeg_enc/package-lock.json
--- a/codecs/mozjpeg_enc/package.json
+++ b/codecs/mozjpeg_enc/package.json
@ -1,13 +1,6 @@
 {
  "name": "mozjpeg_enc",
  "scripts": {
-    "install": "napa",
-    "build": "docker run --rm -v $(pwd):/src trzeci/emscripten ./build.sh"
-  },
-  "napa": {
-    "mozjpeg": "mozilla/mozjpeg#v3.3.1"
-  },
-  "devDependencies": {
-    "napa": "^3.0.0"
+    "build": "../build-cpp.sh"
  }
 }
--- a/codecs/optipng/.gitignore
+++ b/codecs/optipng/.gitignore
@ -1,2 +0,0 @@
-build/
-*.o
--- a/codecs/optipng/README.md
+++ b/codecs/optipng/README.md
@ -1,26 +0,0 @@
-# OptiPNG
-
- Source: <https://sourceforge.net/project/optipng>
- Version: v0.7.7
-
-## Dependencies
-
- Docker
-
-## Example
-
-See `example.html`
-
-## API
-
-### `int version()`
-
-Returns the version of optipng as a number. va.b.c is encoded as 0x0a0b0c
-
-### `ArrayBuffer compress(std::string buffer, {level})`;
-
-`compress` will re-compress the given PNG image via `buffer`. `level` is a number between 0 and 7.
-
-### `void free_result()`
-
-Frees the result created by `compress()`.
--- a/codecs/optipng/build.sh
+++ b/codecs/optipng/build.sh
@ -1,87 +0,0 @@
-#!/bin/bash
-
-set -e
-
-export OPTIMIZE="-Os"
-export PREFIX="/src/build"
-export CFLAGS="${OPTIMIZE} -I${PREFIX}/include/"
-export CPPFLAGS="${OPTIMIZE} -I${PREFIX}/include/"
-export LDFLAGS="${OPTIMIZE} -L${PREFIX}/lib/"
-
-apt-get update
-apt-get install -qqy autoconf libtool
-
-echo "============================================="
-echo "Compiling zlib"
-echo "============================================="
-test -n "$SKIP_ZLIB" || (
-  cd node_modules/zlib
-  emconfigure ./configure --prefix=${PREFIX}/
-  emmake make
-  emmake make install
-)
-echo "============================================="
-echo "Compiling zlib done"
-echo "============================================="
-
-echo "============================================="
-echo "Compiling libpng"
-echo "============================================="
-test -n "$SKIP_LIBPNG" || (
-  cd node_modules/libpng
-  autoreconf -i
-  emconfigure ./configure --with-zlib-prefix=${PREFIX}/ --prefix=${PREFIX}/
-  emmake make
-  emmake make install
-)
-echo "============================================="
-echo "Compiling libpng done"
-echo "============================================="
-
-echo "============================================="
-echo "Compiling optipng"
-echo "============================================="
-(
-  emcc \
-    ${OPTIMIZE} \
-    -Wno-implicit-function-declaration \
-    -I ${PREFIX}/include \
-    -I node_modules/optipng/src/opngreduc \
-    -I node_modules/optipng/src/pngxtern \
-    -I node_modules/optipng/src/cexcept \
-    -I node_modules/optipng/src/gifread \
-    -I node_modules/optipng/src/pnmio \
-    -I node_modules/optipng/src/minitiff \
-    --std=c99 -c \
-    node_modules/optipng/src/opngreduc/*.c \
-    node_modules/optipng/src/pngxtern/*.c \
-    node_modules/optipng/src/gifread/*.c \
-    node_modules/optipng/src/minitiff/*.c \
-    node_modules/optipng/src/pnmio/*.c \
-    node_modules/optipng/src/optipng/*.c
-
-  emcc \
-    --bind \
-    ${OPTIMIZE} \
-    -s ALLOW_MEMORY_GROWTH=1 -s MODULARIZE=1 -s 'EXPORT_NAME="optipng"' \
-    -I ${PREFIX}/include \
-    -I node_modules/optipng/src/opngreduc \
-    -I node_modules/optipng/src/pngxtern \
-    -I node_modules/optipng/src/cexcept \
-    -I node_modules/optipng/src/gifread \
-    -I node_modules/optipng/src/pnmio \
-    -I node_modules/optipng/src/minitiff \
-    -o "optipng.js" \
-    --std=c++11 \
-    optipng.cpp \
-    *.o \
-    ${PREFIX}/lib/libz.so ${PREFIX}/lib/libpng.a
-)
-echo "============================================="
-echo "Compiling optipng done"
-echo "============================================="
-
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
-echo "Did you update your docker image?"
-echo "Run \`docker pull trzeci/emscripten\`"
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
--- a/codecs/optipng/example.html
+++ b/codecs/optipng/example.html
@ -1,19 +0,0 @@
-<!doctype html>
-<script src='optipng.js'></script>
-<script>
-  const Module = optipng();
-
-  Module.onRuntimeInitialized = async _ => {
-    console.log('Version:', Module.version().toString(16));
-    const image = await fetch('../example_palette.png').then(r => r.arrayBuffer());
-    const newImage = Module.compress(image, {level: 3});
-    console.log('done');
-    Module.free_result();
-
-    console.log(`Old size: ${image.byteLength}, new size: ${newImage.byteLength} (${newImage.byteLength/image.byteLength*100}%)`);
-    const blobURL = URL.createObjectURL(new Blob([newImage], {type: 'image/png'}));
-    const img = document.createElement('img');
-    img.src = blobURL;
-    document.body.appendChild(img);
-  };
-</script>
--- a/codecs/optipng/optipng.cpp
+++ b/codecs/optipng/optipng.cpp
@ -1,53 +0,0 @@
-#include "emscripten/bind.h"
-#include "emscripten/val.h"
-
-#include <stdio.h>
-
-using namespace emscripten;
-
-extern "C" int main(int argc, char *argv[]);
-
-int version() {
-  // FIXME (@surma): Haven’t found a version in optipng :(
-  return 0;
-}
-
-struct OptiPngOpts {
-  int level;
-};
-
-uint8_t* result;
-val compress(std::string png, OptiPngOpts opts) {
-  remove("input.png");
-  remove("output.png");
-  FILE* infile = fopen("input.png", "wb");
-  fwrite(png.c_str(), png.length(), 1, infile);
-  fflush(infile);
-  fclose(infile);
-
-  char optlevel[8];
-  sprintf(&optlevel[0], "-o%d", opts.level);
-  char* args[] = {"optipng", optlevel, "-out", "output.png", "input.png"};
-  main(5, args);
-
-  FILE *outfile = fopen("output.png", "rb");
-  fseek(outfile, 0, SEEK_END);
-  int fsize = ftell(outfile);
-  result = (uint8_t*) malloc(fsize);
-  fseek(outfile, 0, SEEK_SET);
-  fread(result, fsize, 1, outfile);
-  return val(typed_memory_view(fsize, result));
-}
-
-void free_result() {
-  free(result);
-}
-
-EMSCRIPTEN_BINDINGS(my_module) {
-  value_object<OptiPngOpts>("OptiPngOpts")
-    .field("level", &OptiPngOpts::level);
-
-  function("version", &version);
-  function("compress", &compress);
-  function("free_result", &free_result);
-}
--- a/codecs/optipng/optipng.d.ts
+++ b/codecs/optipng/optipng.d.ts
@ -1,10 +0,0 @@
-import {EncodeOptions} from "src/codecs/optipng/encoder";
-
-export interface OptiPngModule extends EmscriptenWasm.Module {
-  compress(data: BufferSource, opts: EncodeOptions): Uint8Array;
-  free_result(): void;
-}
-
-export default function(opts: EmscriptenWasm.ModuleOpts): OptiPngModule;
-
-
--- a/codecs/optipng/optipng.js
+++ b/codecs/optipng/optipng.js
--- a/codecs/optipng/optipng.wasm
+++ b/codecs/optipng/optipng.wasm
--- a/codecs/optipng/package-lock.json
+++ b/codecs/optipng/package-lock.json
--- a/codecs/optipng/package.json
+++ b/codecs/optipng/package.json
@ -1,22 +0,0 @@
-{
-  "name": "optipng",
-  "scripts": {
-    "install": "tar-dependency install && napa",
-    "build": "npm run build:wasm",
-    "build:wasm": "docker run --rm -v $(pwd):/src -e SKIP_ZLIB=\"${SKIP_ZLIB}\" -e SKIP_LIBPNG=\"${SKIP_LIBPNG}\" trzeci/emscripten ./build.sh"
-  },
-  "tarDependencies": {
-    "node_modules/optipng": {
-      "url": "https://netcologne.dl.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.7/optipng-0.7.7.tar.gz",
-      "strip": 1
-    }
-  },
-  "napa": {
-    "libpng": "emscripten-ports/libpng",
-    "zlib": "emscripten-ports/zlib"
-  },
-  "dependencies": {
-    "napa": "^3.0.0",
-    "tar-dependency": "0.0.3"
-  }
-}
--- a/codecs/oxipng/.gitignore
+++ b/codecs/oxipng/.gitignore
@ -0,0 +1 @@
+/target
--- a/codecs/oxipng/Cargo.lock
+++ b/codecs/oxipng/Cargo.lock
@ -0,0 +1,496 @@
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+ "cfg-if",
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+ "num-traits",
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+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
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+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
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+ "autocfg",
+]
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+ "libc",
+]
+
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+ "bit-vec",
+ "byteorder",
+ "cloudflare-zlib",
+ "crc",
+ "image",
+ "indexmap",
+ "itertools",
+ "libdeflater",
+ "log",
+ "miniz_oxide",
+ "rgb",
+ "zopfli",
+]
+
+[[package]]
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+ "bitflags",
+ "crc32fast",
+ "deflate",
+ "miniz_oxide",
+]
+
+[[package]]
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+ "unicode-xid",
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+
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+ "proc-macro2",
+]
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+ "autocfg",
+ "crossbeam-deque",
+ "either",
+ "rayon-core",
+]
+
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+ "crossbeam-deque",
+ "crossbeam-queue",
+ "crossbeam-utils",
+ "lazy_static",
+ "num_cpus",
+]
+
+[[package]]
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+ "bytemuck",
+]
+
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+
+[[package]]
+name = "squoosh-oxipng"
+version = "0.1.0"
+dependencies = [
+ "log",
+ "oxipng",
+ "wasm-bindgen",
+]
+
+[[package]]
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+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
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+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
+[[package]]
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+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
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+checksum = "6a634620115e4a229108b71bde263bb4220c483b3f07f5ba514ee8d15064c4c2"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e53963b583d18a5aa3aaae4b4c1cb535218246131ba22a71f05b518098571df"
+dependencies = [
+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fcfd5ef6eec85623b4c6e844293d4516470d8f19cd72d0d12246017eb9060b8"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9adff9ee0e94b926ca81b57f57f86d5545cdcb1d259e21ec9bdd95b901754c75"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f7b90ea6c632dd06fd765d44542e234d5e63d9bb917ecd64d79778a13bd79ae"
+
+[[package]]
+name = "zopfli"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4079b79464426ade2a1b0177fb0ce8396ba6b4084267407e333573c666073964"
+dependencies = [
+ "adler32",
+ "byteorder",
+ "crc",
+ "typed-arena",
+]
--- a/codecs/oxipng/Cargo.toml
+++ b/codecs/oxipng/Cargo.toml
@ -0,0 +1,18 @@
+[package]
+name = "squoosh-oxipng"
+version = "0.1.0"
+authors = ["Ingvar Stepanyan <me@rreverser.com>"]
+edition = "2018"
+publish = false
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+oxipng = { version = "3.0.0", default-features = false }
+wasm-bindgen = "0.2.64"
+log = { version = "0.4", features = ["release_max_level_off"] }
+
+[profile.release]
+lto = true
+opt-level = "s"
--- a/codecs/oxipng/Dockerfile
+++ b/codecs/oxipng/Dockerfile
@ -0,0 +1,12 @@
+FROM rust
+RUN rustup target add wasm32-unknown-unknown
+RUN curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
+RUN mkdir /opt/wabt && \
+  curl -L https://github.com/WebAssembly/wabt/releases/download/1.0.17/wabt-1.0.17-ubuntu.tar.gz  | tar -xzf - -C /opt/wabt --strip 1
+
+RUN mkdir /opt/wasi-sdk && \
+  curl -L https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-11/wasi-sdk-11.0-linux.tar.gz | tar -xzf - -C /opt/wasi-sdk --strip 1
+
+ENV PATH="/opt/wabt/bin:/opt/wasi-sdk/bin:${PATH}"
+WORKDIR /src
--- a/codecs/oxipng/package-lock.json
+++ b/codecs/oxipng/package-lock.json
@ -0,0 +1,4 @@
+{
+  "name": "oxipng",
+  "lockfileVersion": 1
+}
--- a/codecs/oxipng/package.json
+++ b/codecs/oxipng/package.json
@ -0,0 +1,6 @@
+{
+  "name": "oxipng",
+  "scripts": {
+    "build": "../build-rust.sh"
+  }
+}
--- a/codecs/oxipng/pkg/package.json
+++ b/codecs/oxipng/pkg/package.json
@ -0,0 +1,15 @@
+{
+  "name": "squoosh-oxipng",
+  "collaborators": [
+    "Ingvar Stepanyan <me@rreverser.com>"
+  ],
+  "version": "0.1.0",
+  "files": [
+    "squoosh_oxipng_bg.wasm",
+    "squoosh_oxipng.js",
+    "squoosh_oxipng.d.ts"
+  ],
+  "module": "squoosh_oxipng.js",
+  "types": "squoosh_oxipng.d.ts",
+  "sideEffects": false
+}
--- a/codecs/oxipng/pkg/squoosh_oxipng.d.ts
+++ b/codecs/oxipng/pkg/squoosh_oxipng.d.ts
@ -0,0 +1,8 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+* @param {Uint8Array} data
+* @param {number} level
+* @returns {Uint8Array}
+*/
+export function optimise(data: Uint8Array, level: number): Uint8Array;
--- a/codecs/oxipng/pkg/squoosh_oxipng.js
+++ b/codecs/oxipng/pkg/squoosh_oxipng.js
@ -0,0 +1,2 @@
+import * as wasm from "./squoosh_oxipng_bg.wasm";
+export * from "./squoosh_oxipng_bg.js";
--- a/codecs/oxipng/pkg/squoosh_oxipng_bg.d.ts
+++ b/codecs/oxipng/pkg/squoosh_oxipng_bg.d.ts
@ -0,0 +1,8 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export function optimise(a: number, b: number, c: number, d: number): void;
+export function malloc(a: number): number;
+export function free(a: number): void;
+export function __wbindgen_malloc(a: number): number;
+export function __wbindgen_free(a: number, b: number): void;
--- a/codecs/oxipng/pkg/squoosh_oxipng_bg.js
+++ b/codecs/oxipng/pkg/squoosh_oxipng_bg.js
@ -0,0 +1,60 @@
+import * as wasm from './squoosh_oxipng_bg.wasm';
+
+const lTextDecoder = typeof TextDecoder === 'undefined' ? (0, module.require)('util').TextDecoder : TextDecoder;
+
+let cachedTextDecoder = new lTextDecoder('utf-8', { ignoreBOM: true, fatal: true });
+
+cachedTextDecoder.decode();
+
+let cachegetUint8Memory0 = null;
+function getUint8Memory0() {
+    if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.memory.buffer) {
+        cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachegetUint8Memory0;
+}
+
+function getStringFromWasm0(ptr, len) {
+    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
+}
+
+let WASM_VECTOR_LEN = 0;
+
+function passArray8ToWasm0(arg, malloc) {
+    const ptr = malloc(arg.length * 1);
+    getUint8Memory0().set(arg, ptr / 1);
+    WASM_VECTOR_LEN = arg.length;
+    return ptr;
+}
+
+let cachegetInt32Memory0 = null;
+function getInt32Memory0() {
+    if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.memory.buffer) {
+        cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
+    }
+    return cachegetInt32Memory0;
+}
+
+function getArrayU8FromWasm0(ptr, len) {
+    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);
+}
+/**
+* @param {Uint8Array} data
+* @param {number} level
+* @returns {Uint8Array}
+*/
+export function optimise(data, level) {
+    var ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
+    var len0 = WASM_VECTOR_LEN;
+    wasm.optimise(8, ptr0, len0, level);
+    var r0 = getInt32Memory0()[8 / 4 + 0];
+    var r1 = getInt32Memory0()[8 / 4 + 1];
+    var v1 = getArrayU8FromWasm0(r0, r1).slice();
+    wasm.__wbindgen_free(r0, r1 * 1);
+    return v1;
+}
+
+export const __wbindgen_throw = function(arg0, arg1) {
+    throw new Error(getStringFromWasm0(arg0, arg1));
+};
+
--- a/codecs/oxipng/pkg/squoosh_oxipng_bg.wasm
+++ b/codecs/oxipng/pkg/squoosh_oxipng_bg.wasm
--- a/codecs/oxipng/src/lib.rs
+++ b/codecs/oxipng/src/lib.rs
@ -0,0 +1,18 @@
+mod malloc_shim;
+
+use wasm_bindgen::prelude::*;
+use oxipng::AlphaOptim;
+
+#[wasm_bindgen(catch)]
+pub fn optimise(data: &[u8], level: u8) -> Vec<u8> {
+  let mut options = oxipng::Options::from_preset(level);
+  options.alphas.insert(AlphaOptim::Black);
+  options.alphas.insert(AlphaOptim::White);
+  options.alphas.insert(AlphaOptim::Up);
+  options.alphas.insert(AlphaOptim::Down);
+  options.alphas.insert(AlphaOptim::Left);
+  options.alphas.insert(AlphaOptim::Right);
+
+  options.deflate = oxipng::Deflaters::Libdeflater;
+  oxipng::optimize_from_memory(data, &options).unwrap_throw()
+}
--- a/codecs/oxipng/src/malloc_shim.rs
+++ b/codecs/oxipng/src/malloc_shim.rs
@ -0,0 +1,47 @@
+//! This is a module that provides `malloc` and `free` for `libdeflate`.
+//! These implementations are compatible with the standard signatures
+//! but use Rust allocator instead of including libc one as well.
+//!
+//! Rust allocator APIs requires passing size and alignment to the
+//! `dealloc` function. This is different from C API, which only
+//! expects a pointer in `free` and expects allocators to take care of
+//! storing any necessary information elsewhere.
+//!
+//! In order to simulate C API, we allocate a `size_and_data_ptr`
+//! of size `sizeof(usize) + size` where `size` is the requested number
+//! of bytes. Then, we store `size` at the beginning of the allocated
+//! chunk (within those `sizeof(usize)` bytes) and return
+//! `data_ptr = size_and_data_ptr + sizeof(usize)` to the calleer:
+//!
+//! [`size`][...actual data]
+//! -^------------------ `size_and_data_ptr`
+//! ---------^---------- `data_ptr`
+//!
+//! Then, in `free`, the caller gives us `data_ptr`. We can subtract
+//! `sizeof(usize)` back and get the original `size_and_data_ptr`.
+//! At this point we can read `size` back and call the Rust `dealloc`
+//! for the whole allocated chunk.
+//!
+//! I've raised an upstream issue to hopefully make this easier in
+//! future: https://github.com/ebiggers/libdeflate/issues/62
+
+use std::alloc::*;
+use std::mem::{align_of, size_of};
+
+unsafe fn layout_for(size: usize) -> Layout {
+    Layout::from_size_align_unchecked(size_of::<usize>() + size, align_of::<usize>())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn malloc(size: usize) -> *mut u8 {
+    let size_and_data_ptr = alloc(layout_for(size));
+    *(size_and_data_ptr as *mut usize) = size;
+    size_and_data_ptr.add(size_of::<usize>())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn free(data_ptr: *mut u8) {
+    let size_and_data_ptr = data_ptr.sub(size_of::<usize>());
+    let size = *(size_and_data_ptr as *const usize);
+    dealloc(size_and_data_ptr, layout_for(size))
+}
--- a/codecs/resize/.gitignore
+++ b/codecs/resize/.gitignore
@ -0,0 +1,5 @@
+**/*.rs.bk
+target
+bin/
+pkg/README.md
+lut.inc
--- a/codecs/resize/Cargo.lock
+++ b/codecs/resize/Cargo.lock
@ -0,0 +1,284 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "bumpalo"
+version = "3.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
+
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+
+[[package]]
+name = "console_error_panic_hook"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8d976903543e0c48546a91908f21588a680a8c8f984df9a5d69feccb2b2a211"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "futures"
+version = "0.1.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b980f2816d6ee8673b6517b52cb0e808a180efc92e5c19d02cdda79066703ef"
+
+[[package]]
+name = "js-sys"
+version = "0.3.41"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4b9172132a62451e56142bff9afc91c8e4a4500aa5b847da36815b63bfda916"
+dependencies = [
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
+[[package]]
+name = "libc"
+version = "0.2.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9f8082297d534141b30c8d39e9b1773713ab50fdbe4ff30f750d063b3bfd701"
+
+[[package]]
+name = "log"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "cfg-if",
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+dependencies = [
+ "unicode-xid 0.1.0",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "unicode-xid 0.2.1",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "proc-macro2 0.4.30",
+]
+
+[[package]]
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+dependencies = [
+ "proc-macro2 1.0.18",
+]
+
+[[package]]
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+
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+
+[[package]]
+name = "squoosh-resize"
+version = "0.1.0"
+dependencies = [
+ "cfg-if",
+ "console_error_panic_hook",
+ "resize",
+ "wasm-bindgen",
+ "wasm-bindgen-test",
+ "wee_alloc",
+]
+
+[[package]]
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+ "unicode-xid 0.2.1",
+]
+
+[[package]]
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+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
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+checksum = "3e53963b583d18a5aa3aaae4b4c1cb535218246131ba22a71f05b518098571df"
+dependencies = [
+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2 1.0.18",
+ "quote 1.0.7",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
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+dependencies = [
+ "cfg-if",
+ "futures",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
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+dependencies = [
+ "quote 1.0.7",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "proc-macro2 1.0.18",
+ "quote 1.0.7",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f7b90ea6c632dd06fd765d44542e234d5e63d9bb917ecd64d79778a13bd79ae"
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2d9693b63a742d481c7f80587e057920e568317b2806988c59cd71618bc26c1"
+dependencies = [
+ "console_error_panic_hook",
+ "futures",
+ "js-sys",
+ "scoped-tls",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "wasm-bindgen-test-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-test-macro"
+version = "0.2.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0789dac148a8840bbcf9efe13905463b733fa96543bfbf263790535c11af7ba5"
+dependencies = [
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+]
+
+[[package]]
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+version = "0.3.41"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "863539788676619aac1a23e2df3655e96b32b0e05eb72ca34ba045ad573c625d"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "wee_alloc"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbb3b5a6b2bb17cb6ad44a2e68a43e8d2722c997da10e928665c72ec6c0a0b8e"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "memory_units",
+ "winapi",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
--- a/codecs/resize/Cargo.toml
+++ b/codecs/resize/Cargo.toml
@ -0,0 +1,38 @@
+[package]
+name = "squoosh-resize"
+version = "0.1.0"
+authors = ["Surma <surma@surma.link>"]
+publish = false
+
+[lib]
+#crate-type = ["cdylib", "rlib"]
+crate-type = ["cdylib"]
+
+[features]
+default = ["console_error_panic_hook", "wee_alloc"]
+
+[dependencies]
+cfg-if = "0.1.2"
+wasm-bindgen = "0.2.38"
+resize = "0.3.0"
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = { version = "0.1.1", optional = true }
+
+# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
+# compared to the default allocator's ~10K. It is slower than the default
+# allocator, however.
+#
+# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
+wee_alloc = { version = "0.4.2", optional = true }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.2"
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"
+lto = true
--- a/codecs/resize/build.rs
+++ b/codecs/resize/build.rs
@ -0,0 +1,23 @@
+include!("./src/srgb.rs");
+
+use std::io::Write;
+
+fn main() -> std::io::Result<()> {
+    let mut srgb_to_linear_lut = String::from("static SRGB_TO_LINEAR_LUT: [f32; 256] = [");
+    let mut linear_to_srgb_lut = String::from("static LINEAR_TO_SRGB_LUT: [f32; 256] = [");
+    for i in 0..256 {
+        srgb_to_linear_lut.push_str(&format!("{0:.7}", srgb_to_linear((i as f32) / 255.0)));
+        srgb_to_linear_lut.push_str(",");
+        linear_to_srgb_lut.push_str(&format!("{0:.7}", linear_to_srgb((i as f32) / 255.0)));
+        linear_to_srgb_lut.push_str(",");
+    }
+    srgb_to_linear_lut.pop().unwrap();
+    linear_to_srgb_lut.pop().unwrap();
+    srgb_to_linear_lut.push_str("];");
+    linear_to_srgb_lut.push_str("];");
+
+    let mut file = std::fs::File::create("src/lut.inc")?;
+    file.write_all(srgb_to_linear_lut.as_bytes())?;
+    file.write_all(linear_to_srgb_lut.as_bytes())?;
+    Ok(())
+}
--- a/codecs/resize/package-lock.json
+++ b/codecs/resize/package-lock.json
@ -0,0 +1,4 @@
+{
+  "name": "resize",
+  "lockfileVersion": 1
+}
--- a/codecs/resize/package.json
+++ b/codecs/resize/package.json
@ -0,0 +1,6 @@
+{
+  "name": "resize",
+  "scripts": {
+    "build": "../build-rust.sh"
+  }
+}
--- a/codecs/resize/pkg/package.json
+++ b/codecs/resize/pkg/package.json
@ -0,0 +1,15 @@
+{
+  "name": "squoosh-resize",
+  "collaborators": [
+    "Surma <surma@surma.link>"
+  ],
+  "version": "0.1.0",
+  "files": [
+    "squoosh_resize_bg.wasm",
+    "squoosh_resize.js",
+    "squoosh_resize.d.ts"
+  ],
+  "module": "squoosh_resize.js",
+  "types": "squoosh_resize.d.ts",
+  "sideEffects": false
+}
--- a/codecs/resize/pkg/squoosh_resize.d.ts
+++ b/codecs/resize/pkg/squoosh_resize.d.ts
@ -0,0 +1,14 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+* @param {Uint8Array} input_image
+* @param {number} input_width
+* @param {number} input_height
+* @param {number} output_width
+* @param {number} output_height
+* @param {number} typ_idx
+* @param {boolean} premultiply
+* @param {boolean} color_space_conversion
+* @returns {Uint8Array}
+*/
+export function resize(input_image: Uint8Array, input_width: number, input_height: number, output_width: number, output_height: number, typ_idx: number, premultiply: boolean, color_space_conversion: boolean): Uint8Array;
--- a/codecs/resize/pkg/squoosh_resize.js
+++ b/codecs/resize/pkg/squoosh_resize.js
@ -0,0 +1,2 @@
+import * as wasm from "./squoosh_resize_bg.wasm";
+export * from "./squoosh_resize_bg.js";
--- a/codecs/resize/pkg/squoosh_resize_bg.d.ts
+++ b/codecs/resize/pkg/squoosh_resize_bg.d.ts
@ -0,0 +1,6 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export function resize(a: number, b: number, c: number, d: number, e: number, f: number, g: number, h: number, i: number, j: number): void;
+export function __wbindgen_malloc(a: number): number;
+export function __wbindgen_free(a: number, b: number): void;
--- a/codecs/resize/pkg/squoosh_resize_bg.js
+++ b/codecs/resize/pkg/squoosh_resize_bg.js
@ -0,0 +1,52 @@
+import * as wasm from './squoosh_resize_bg.wasm';
+
+let cachegetUint8Memory0 = null;
+function getUint8Memory0() {
+    if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.memory.buffer) {
+        cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachegetUint8Memory0;
+}
+
+let WASM_VECTOR_LEN = 0;
+
+function passArray8ToWasm0(arg, malloc) {
+    const ptr = malloc(arg.length * 1);
+    getUint8Memory0().set(arg, ptr / 1);
+    WASM_VECTOR_LEN = arg.length;
+    return ptr;
+}
+
+let cachegetInt32Memory0 = null;
+function getInt32Memory0() {
+    if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.memory.buffer) {
+        cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
+    }
+    return cachegetInt32Memory0;
+}
+
+function getArrayU8FromWasm0(ptr, len) {
+    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);
+}
+/**
+* @param {Uint8Array} input_image
+* @param {number} input_width
+* @param {number} input_height
+* @param {number} output_width
+* @param {number} output_height
+* @param {number} typ_idx
+* @param {boolean} premultiply
+* @param {boolean} color_space_conversion
+* @returns {Uint8Array}
+*/
+export function resize(input_image, input_width, input_height, output_width, output_height, typ_idx, premultiply, color_space_conversion) {
+    var ptr0 = passArray8ToWasm0(input_image, wasm.__wbindgen_malloc);
+    var len0 = WASM_VECTOR_LEN;
+    wasm.resize(8, ptr0, len0, input_width, input_height, output_width, output_height, typ_idx, premultiply, color_space_conversion);
+    var r0 = getInt32Memory0()[8 / 4 + 0];
+    var r1 = getInt32Memory0()[8 / 4 + 1];
+    var v1 = getArrayU8FromWasm0(r0, r1).slice();
+    wasm.__wbindgen_free(r0, r1 * 1);
+    return v1;
+}
+
--- a/codecs/resize/pkg/squoosh_resize_bg.wasm
+++ b/codecs/resize/pkg/squoosh_resize_bg.wasm
--- a/codecs/resize/src/lib.rs
+++ b/codecs/resize/src/lib.rs
@ -0,0 +1,121 @@
+extern crate cfg_if;
+extern crate resize;
+extern crate wasm_bindgen;
+
+mod utils;
+
+use cfg_if::cfg_if;
+use resize::Pixel::RGBA;
+use resize::Type;
+use wasm_bindgen::prelude::*;
+
+mod srgb;
+use srgb::Clamp;
+
+cfg_if! {
+    // When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
+    // allocator.
+    if #[cfg(feature = "wee_alloc")] {
+        extern crate wee_alloc;
+        #[global_allocator]
+        static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+    }
+}
+
+include!("./lut.inc");
+
+// If `with_space_conversion` is true, this function returns 2 functions that
+// convert from sRGB to linear RGB and vice versa. If `with_space_conversion` is
+// false, the 2 functions returned do nothing.
+fn converter_funcs(with_space_conversion: bool) -> ((fn(u8) -> f32), (fn(f32) -> u8)) {
+    if with_space_conversion {
+        (
+            |v| SRGB_TO_LINEAR_LUT[v as usize] * 255.0,
+            |v| (LINEAR_TO_SRGB_LUT[v as usize] * 255.0) as u8,
+        )
+    } else {
+        (|v| v as f32, |v| v as u8)
+    }
+}
+
+// If `with_alpha_premultiplication` is true, this function returns a function
+// that premultiply the alpha channel with the given channel value and another
+// function that reverses that process. If `with_alpha_premultiplication` is
+// false, the functions just return the channel value.
+fn alpha_multiplier_funcs(
+    with_alpha_premultiplication: bool,
+) -> ((fn(f32, u8) -> u8), (fn(u8, u8) -> f32)) {
+    if with_alpha_premultiplication {
+        (
+            |v, a| (v * (a as f32) / 255.0) as u8,
+            |v, a| ((v as f32) * 255.0 / (a as f32)).clamp(0.0, 255.0),
+        )
+    } else {
+        (|v, _a| v as u8, |v, _a| v as f32)
+    }
+}
+
+#[wasm_bindgen]
+#[no_mangle]
+pub fn resize(
+    mut input_image: Vec<u8>,
+    input_width: usize,
+    input_height: usize,
+    output_width: usize,
+    output_height: usize,
+    typ_idx: usize,
+    premultiply: bool,
+    color_space_conversion: bool,
+) -> Vec<u8> {
+    let typ = match typ_idx {
+        0 => Type::Triangle,
+        1 => Type::Catrom,
+        2 => Type::Mitchell,
+        3 => Type::Lanczos3,
+        _ => panic!("Nope"),
+    };
+    let num_input_pixels = input_width * input_height;
+    let num_output_pixels = output_width * output_height;
+
+    let (to_linear, to_color_space) = converter_funcs(color_space_conversion);
+    let (premultiplier, demultiplier) = alpha_multiplier_funcs(premultiply);
+
+    // If both options are false, there is no preprocessing on the pixel valus
+    // and we can skip the loop.
+    if premultiply || color_space_conversion {
+        for i in 0..num_input_pixels {
+            for j in 0..3 {
+                input_image[4 * i + j] =
+                    premultiplier(to_linear(input_image[4 * i + j]), input_image[4 * i + 3]);
+            }
+        }
+    }
+
+    let mut resizer = resize::new(
+        input_width,
+        input_height,
+        output_width,
+        output_height,
+        RGBA,
+        typ,
+    );
+    let mut output_image = Vec::<u8>::with_capacity(num_output_pixels * 4);
+    output_image.resize(num_output_pixels * 4, 0);
+    resizer.resize(input_image.as_slice(), output_image.as_mut_slice());
+
+    if premultiply || color_space_conversion {
+        for i in 0..num_output_pixels {
+            for j in 0..3 {
+                // We don’t need to worry about division by zero, as division by zero
+                // is well-defined on floats to return ±Inf. ±Inf is converted to 0
+                // when casting to integers.
+                output_image[4 * i + j] = to_color_space(demultiplier(
+                    output_image[4 * i + j],
+                    output_image[4 * i + 3],
+                ));
+            }
+        }
+    }
+
+    return output_image;
+}
--- a/codecs/resize/src/srgb.rs
+++ b/codecs/resize/src/srgb.rs
@ -0,0 +1,29 @@
+pub trait Clamp: std::cmp::PartialOrd + Sized {
+    fn clamp(self, min: Self, max: Self) -> Self {
+        if self.lt(&min) {
+            min
+        } else if self.gt(&max) {
+            max
+        } else {
+            self
+        }
+    }
+}
+
+impl Clamp for f32 {}
+
+pub fn srgb_to_linear(v: f32) -> f32 {
+    if v < 0.04045 {
+        v / 12.92
+    } else {
+        ((v + 0.055) / 1.055).powf(2.4).clamp(0.0, 1.0)
+    }
+}
+
+pub fn linear_to_srgb(v: f32) -> f32 {
+    if v < 0.0031308 {
+        v * 12.92
+    } else {
+        (1.055 * v.powf(1.0 / 2.4) - 0.055).clamp(0.0, 1.0)
+    }
+}
--- a/codecs/resize/src/utils.rs
+++ b/codecs/resize/src/utils.rs
@ -0,0 +1,17 @@
+use cfg_if::cfg_if;
+
+cfg_if! {
+    // When the `console_error_panic_hook` feature is enabled, we can call the
+    // `set_panic_hook` function at least once during initialization, and then
+    // we will get better error messages if our code ever panics.
+    //
+    // For more details see
+    // https://github.com/rustwasm/console_error_panic_hook#readme
+    if #[cfg(feature = "console_error_panic_hook")] {
+        extern crate console_error_panic_hook;
+        pub use self::console_error_panic_hook::set_once as set_panic_hook;
+    } else {
+        #[inline]
+        pub fn set_panic_hook() {}
+    }
+}
--- a/codecs/rotate/.gitignore
+++ b/codecs/rotate/.gitignore
@ -0,0 +1 @@
+target
--- a/codecs/rotate/Cargo.lock
+++ b/codecs/rotate/Cargo.lock
@ -0,0 +1,6 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "squoosh-rotate"
+version = "0.1.0"
+
--- a/codecs/rotate/Cargo.toml
+++ b/codecs/rotate/Cargo.toml
@ -0,0 +1,15 @@
+[package]
+name = "squoosh-rotate"
+version = "0.1.0"
+authors = ["Surma <surma@google.com>"]
+edition = "2018"
+publish = false
+
+[lib]
+name = "rotate"
+path = "rotate.rs"
+crate-type = ["cdylib", "rlib"]
+
+[profile.release]
+lto = true
+opt-level = "s"
--- a/codecs/rotate/Dockerfile
+++ b/codecs/rotate/Dockerfile
@ -0,0 +1,8 @@
+FROM rust
+RUN rustup target add wasm32-unknown-unknown
+
+RUN mkdir /opt/wabt && \
+ curl -L https://github.com/WebAssembly/wabt/releases/download/1.0.11/wabt-1.0.11-linux.tar.gz  | tar -xzf - -C /opt/wabt --strip 1
+
+ENV PATH="/opt/wabt:${PATH}"
+WORKDIR /src
--- a/codecs/rotate/benchmark.js
+++ b/codecs/rotate/benchmark.js
@ -0,0 +1,45 @@
+// THIS IS NOT A NODE SCRIPT
+// This is a d8 script. Please install jsvu[1] and install v8.
+// Then run `npm run --silent benchmark`.
+// [1]: https://github.com/GoogleChromeLabs/jsvu
+async function init() {
+  //  Adjustable constants.
+  const imageDimensions = 4096;
+  const iterations = new Array(100);
+
+  // Constants. Don’t change.
+  const imageByteSize = imageDimensions * imageDimensions * 4;
+  const wasmPageSize = 64 * 1024;
+
+  const buffer = readbuffer("rotate.wasm");
+  const { instance } = await WebAssembly.instantiate(buffer);
+
+  const pagesAvailable = Math.floor(
+    instance.exports.memory.buffer.byteLength / wasmPageSize
+  );
+  const pagesNeeded = Math.floor((imageByteSize * 2 + 4) / wasmPageSize) + 1;
+  const additionalPagesNeeded = pagesNeeded - pagesAvailable;
+  if (additionalPagesNeeded > 0) {
+    instance.exports.memory.grow(additionalPagesNeeded);
+  }
+
+  [0, 90, 180, 270].forEach(rotation => {
+    print(`\n${rotation} degrees`);
+    print(`==============================`);
+    for (let i = 0; i < 100; i++) {
+      const start = Date.now();
+      instance.exports.rotate(imageDimensions, imageDimensions, rotation);
+      iterations[i] = Date.now() - start;
+    }
+    const average = iterations.reduce((sum, c) => sum + c) / iterations.length;
+    const stddev = Math.sqrt(
+      iterations
+        .map(i => Math.pow(i - average, 2))
+        .reduce((sum, c) => sum + c) / iterations.length
+    );
+    print(`n = ${iterations.length}`);
+    print(`Average: ${average}`);
+    print(`StdDev: ${stddev}`);
+  });
+}
+init().catch(e => console.error(e.stack));
--- a/codecs/rotate/build.sh
+++ b/codecs/rotate/build.sh
@ -0,0 +1,8 @@
+#!/bin/sh
+
+set -e
+
+cargo build \
+  --target wasm32-unknown-unknown \
+  --release
+wasm-opt -Os --strip target/wasm32-unknown-unknown/release/rotate.wasm -o rotate.wasm
--- a/codecs/rotate/package.json
+++ b/codecs/rotate/package.json
@ -0,0 +1,10 @@
+{
+  "name": "rotate",
+  "scripts": {
+    "build": "../build-rust.sh ./build.sh",
+    "benchmark": "echo File size after gzip && npm run benchmark:filesize && echo Optimizing && npm run -s benchmark:optimizing",
+    "benchmark:baseline": "v8 --liftoff --no-wasm-tier-up --no-opt ./benchmark.js",
+    "benchmark:optimizing": "v8 --no-liftoff --no-wasm-tier-up ./benchmark.js",
+    "benchmark:filesize": "cat rotate.wasm | gzip -c9n | wc -c"
+  }
+}
--- a/codecs/rotate/rotate.rs
+++ b/codecs/rotate/rotate.rs
@ -0,0 +1,113 @@
+use std::slice::{from_raw_parts, from_raw_parts_mut};
+
+// This function is taken from Zachary Dremann
+// https://github.com/GoogleChromeLabs/squoosh/pull/462
+trait HardUnwrap<T> {
+    fn unwrap_hard(self) -> T;
+}
+
+impl<T> HardUnwrap<T> for Option<T> {
+    #[cfg(not(debug_assertions))]
+    #[inline]
+    fn unwrap_hard(self) -> T {
+        match self {
+            Some(t) => t,
+            None => std::process::abort(),
+        }
+    }
+
+    #[cfg(debug_assertions)]
+    fn unwrap_hard(self) -> T {
+        self.unwrap()
+    }
+}
+
+const TILE_SIZE: usize = 16;
+
+fn get_buffers<'a>(width: usize, height: usize) -> (&'a [u32], &'a mut [u32]) {
+    let num_pixels = width * height;
+    let in_b: &[u32];
+    let out_b: &mut [u32];
+    unsafe {
+        in_b = from_raw_parts::<u32>(8 as *const u32, num_pixels);
+        out_b = from_raw_parts_mut::<u32>((num_pixels * 4 + 8) as *mut u32, num_pixels);
+    }
+    return (in_b, out_b);
+}
+
+#[inline(never)]
+fn rotate_0(width: usize, height: usize) {
+    let (in_b, out_b) = get_buffers(width, height);
+    for (in_p, out_p) in in_b.iter().zip(out_b.iter_mut()) {
+        *out_p = *in_p;
+    }
+}
+
+#[inline(never)]
+fn rotate_90(width: usize, height: usize) {
+    let (in_b, out_b) = get_buffers(width, height);
+    let new_width = height;
+    let _new_height = width;
+    for y_start in (0..height).step_by(TILE_SIZE) {
+        for x_start in (0..width).step_by(TILE_SIZE) {
+            for y in y_start..(y_start + TILE_SIZE).min(height) {
+                let in_offset = y * width;
+                let in_bounds = if x_start + TILE_SIZE < width {
+                    (in_offset + x_start)..(in_offset + x_start + TILE_SIZE)
+                } else {
+                    (in_offset + x_start)..(in_offset + width)
+                };
+                let in_chunk = in_b.get(in_bounds).unwrap_hard();
+                for (x, in_p) in in_chunk.iter().enumerate() {
+                    let new_x = (new_width - 1) - y;
+                    let new_y = x + x_start;
+                    *out_b.get_mut(new_y * new_width + new_x).unwrap_hard() = *in_p;
+                }
+            }
+        }
+    }
+}
+
+#[inline(never)]
+fn rotate_180(width: usize, height: usize) {
+    let (in_b, out_b) = get_buffers(width, height);
+    for (in_p, out_p) in in_b.iter().zip(out_b.iter_mut().rev()) {
+        *out_p = *in_p;
+    }
+}
+
+#[inline(never)]
+fn rotate_270(width: usize, height: usize) {
+    let (in_b, out_b) = get_buffers(width, height);
+    let new_width = height;
+    let new_height = width;
+    for y_start in (0..height).step_by(TILE_SIZE) {
+        for x_start in (0..width).step_by(TILE_SIZE) {
+            for y in y_start..(y_start + TILE_SIZE).min(height) {
+                let in_offset = y * width;
+                let in_bounds = if x_start + TILE_SIZE < width {
+                    (in_offset + x_start)..(in_offset + x_start + TILE_SIZE)
+                } else {
+                    (in_offset + x_start)..(in_offset + width)
+                };
+                let in_chunk = in_b.get(in_bounds).unwrap_hard();
+                for (x, in_p) in in_chunk.iter().enumerate() {
+                    let new_x = y;
+                    let new_y = new_height - 1 - (x_start + x);
+                    *out_b.get_mut(new_y * new_width + new_x).unwrap_hard() = *in_p;
+                }
+            }
+        }
+    }
+}
+
+#[no_mangle]
+fn rotate(width: usize, height: usize, rotate: usize) {
+    match rotate {
+        0 => rotate_0(width, height),
+        90 => rotate_90(width, height),
+        180 => rotate_180(width, height),
+        270 => rotate_270(width, height),
+        _ => std::process::abort(),
+    }
+}
--- a/codecs/rotate/rotate.wasm
+++ b/codecs/rotate/rotate.wasm
--- a/codecs/rust.Dockerfile
+++ b/codecs/rust.Dockerfile
@ -0,0 +1,15 @@
+FROM emscripten/emsdk:1.39.19 AS wasm-tools
+WORKDIR /opt/wasm-tools
+RUN wget -qO- https://github.com/rustwasm/wasm-pack/releases/download/v0.9.1/wasm-pack-v0.9.1-x86_64-unknown-linux-musl.tar.gz | tar -xzf - --strip 1
+
+FROM rust:1.44-stretch AS rust
+RUN rustup target add wasm32-unknown-unknown
+COPY --from=wasm-tools /emsdk/upstream/bin/wasm-opt /emsdk/upstream/bin/clang /usr/local/bin/
+COPY --from=wasm-tools /emsdk/upstream/lib/ /usr/local/lib/
+COPY --from=wasm-tools /emsdk/upstream/emscripten/system/include/libc/ /wasm32/include/
+COPY --from=wasm-tools /emsdk/upstream/emscripten/system/lib/libc/musl/arch/emscripten/bits/ /wasm32/include/bits/
+COPY --from=wasm-tools /opt/wasm-tools/wasm-pack /usr/local/cargo/bin/
+
+ENV CPATH="/wasm32/include"
+WORKDIR /src
+CMD ["sh", "-c", "rm -rf pkg && wasm-pack build -- --verbose --locked && rm pkg/.gitignore"]
--- a/codecs/webp/Makefile
+++ b/codecs/webp/Makefile
@ -0,0 +1,56 @@
+CODEC_URL := https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
+CODEC_DIR = node_modules/libwebp
+CODEC_OUT_RELATIVE = src/.libs/libwebp.a
+CODEC_OUT := $(addprefix $(CODEC_DIR)/, $(CODEC_OUT_RELATIVE))
+OUT_JS = enc/webp_enc.js dec/webp_dec.js
+OUT_WASM = $(OUT_JS:.js=.wasm)
+
+.PHONY: all clean
+
+all: $(OUT_JS)
+
+%.js: %.cpp $(CODEC_OUT)
+	$(CXX) \
+		-I $(CODEC_DIR) \
+		${CXXFLAGS} \
+		${LDFLAGS} \
+		--bind \
+		--closure 1 \
+		-s ALLOW_MEMORY_GROWTH=1 \
+		-s MODULARIZE=1 \
+		-s 'EXPORT_NAME="$(basename $(@F))"' \
+		-o $@ \
+		$+
+
+$(CODEC_OUT): $(CODEC_DIR)/src/Makefile
+	$(MAKE) -C $(CODEC_DIR)/src
+
+$(CODEC_DIR)/src/Makefile: $(CODEC_DIR)/configure
+	cd $(CODEC_DIR) && ./configure \
+		--disable-shared \
+		--disable-libwebpdemux \
+		--disable-wic \
+		--disable-gif \
+		--disable-tiff \
+		--disable-jpeg \
+		--disable-png \
+		--disable-sdl \
+		--disable-gl \
+		--disable-threading \
+		--disable-neon-rtcd \
+		--disable-neon \
+		--disable-sse2 \
+		--disable-sse4.1
+
+$(CODEC_DIR)/configure: $(CODEC_DIR)/configure.ac
+	cd $(CODEC_DIR) && autoreconf -iv
+
+$(CODEC_DIR)/configure.ac: $(CODEC_DIR)
+
+$(CODEC_DIR):
+	mkdir -p $@
+	curl -sL $(CODEC_URL) | tar xz --strip 1 -C $@
+
+clean:
+	$(RM) $(OUT_JS) $(OUT_WASM)
+	$(MAKE) -C $(CODEC_DIR) clean
--- a/codecs/webp/dec/README.md
+++ b/codecs/webp/dec/README.md
@ -1,7 +1,7 @@
 # WebP decoder

 - Source: <https://github.com/webmproject/libwebp>
- Version: v0.6.1
+- Version: v1.0.2

 ## Example

@ -16,7 +16,3 @@ Returns the version of libwebp as a number. va.b.c is encoded as 0x0a0b0c
 ### `RawImage decode(std::string buffer)`

 Decodes the given webp buffer into raw RGBA. `RawImage` is a class with 3 fields: `buffer`, `width`, and `height`.
-
-### `void free_result()`
-
-Frees the result created by `decode()`.
--- a/Show More
+++ b/Show More