Merge branch 'dev' into basis

.gitattributes

@@ -1,2 +1,2 @@
-/codecs/**/*.js linguist-generated -diff
+/codecs/**/*.js linguist-generated=true
-/codecs/*/pkg*/*.d.ts linguist-generated
+/codecs/*/pkg*/*.d.ts linguist-generated=true

.husky/pre-commit

@@ -1 +0,0 @@
-npx lint-staged

README.md

@@ -2,6 +2,10 @@
 
 [Squoosh] is an image compression web app that reduces image sizes through numerous formats.
 
+# API & CLI
+
+Squoosh has [an API](https://github.com/GoogleChromeLabs/squoosh/tree/dev/libsquoosh) and [a CLI](https://github.com/GoogleChromeLabs/squoosh/tree/dev/cli) to compress many images at once.
+
 # Privacy
 
 Squoosh does not send your image to a server. All image compression processes locally.

cli/.gitignore

@@ -0,0 +1,3 @@
+node_modules
+build
+.DS_Store

cli/.npmignore

@@ -0,0 +1 @@
+node_modules

cli/README.md

@@ -0,0 +1,59 @@
+# Squoosh CLI
+
+Squoosh CLI is an _experimental_ way to run all the codecs you know from the [Squoosh] web app on your command line using WebAssembly. The Squoosh CLI uses a worker pool to parallelize processing images. This way you can apply the same codec to many images at once.
+
+Squoosh CLI is currently not the fastest image compression tool in town and doesn’t aim to be. It is, however, fast enough to compress many images sufficiently quick at once.
+
+## Installation
+
+The Squoosh CLI can be used straight from the command line without installing using `npx`:
+
+```
+$ npx @squoosh/cli <options...>
+```
+
+Of course, you can also install the Squoosh CLI:
+
+```
+$ npm i -g @squoosh/cli
+$ squoosh-cli <options...>
+```
+
+## Usage
+
+```
+Usage: squoosh-cli [options] <files...>
+
+Options:
+  -V, --version                                          output the version number
+  -d, --output-dir <dir>                                 Output directory (default: ".")
+  -s, --suffix <suffix>                                  Append suffix to output files (default: "")
+  --max-optimizer-rounds <rounds>                        Maximum number of compressions to use for auto optimizations (default: "6")
+  --optimizer-butteraugli-target <butteraugli distance>  Target Butteraugli distance for auto optimizer (default: "1.4")
+  --resize [config]                                      Resize the image before compressing
+  --quant [config]                                       Reduce the number of colors used (aka. paletting)
+  --rotate [config]                                      Rotate image
+  --mozjpeg [config]                                     Use MozJPEG to generate a .jpg file with the given configuration
+  --webp [config]                                        Use WebP to generate a .webp file with the given configuration
+  --avif [config]                                        Use AVIF to generate a .avif file with the given configuration
+  --jxl [config]                                         Use JPEG-XL to generate a .jxl file with the given configuration
+  --wp2 [config]                                         Use WebP2 to generate a .wp2 file with the given configuration
+  --oxipng [config]                                      Use OxiPNG to generate a .png file with the given configuration
+  -h, --help                                             display help for command
+```
+
+The default values for each `config` option can be found in the [`codecs.ts`][codecs.ts] file under `defaultEncoderOptions`. Every unspecified value will use the default value specified here. _Better documentation is needed here._
+
+## Auto optimizer
+
+Squoosh CLI has an _experimental_ auto optimizer that compresses an image as much as possible, trying to hit a specific [Butteraugli] target value. The higher the Butteraugli target value, the more artifacts can be introduced.
+
+You can make use of the auto optimizer by using “auto” as the config object.
+
+```
+$ npx @squoosh/cli --wp2 auto test.png
+```
+
+[squoosh]: https://squoosh.app
+[codecs.ts]: https://github.com/GoogleChromeLabs/squoosh/blob/dev/libsquoosh/src/codecs.ts
+[butteraugli]: https://github.com/google/butteraugli

cli/package-lock.json

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+    }
+  }
+}

cli/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@squoosh/cli",
+  "version": "0.7.2",
+  "description": "A CLI for Squoosh",
+  "public": true,
+  "type": "module",
+  "homepage": "https://github.com/GoogleChromeLabs/squoosh",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/GoogleChromeLabs/squoosh.git"
+  },
+  "bin": {
+    "squoosh-cli": "src/index.js",
+    "@squoosh/cli": "src/index.js"
+  },
+  "files": [
+    "/src/index.js"
+  ],
+  "keywords": [],
+  "author": "Google Chrome Developers <chromium-dev@google.com>",
+  "license": "Apache-2.0",
+  "engines": {
+    "node": " ^12.20.2 || ^14.13.1 || ^16.0.0 "
+  },
+  "dependencies": {
+    "@squoosh/lib": "^0.4.0",
+    "commander": "^7.2.0",
+    "json5": "^2.2.0",
+    "kleur": "^4.1.4",
+    "ora": "^5.4.0"
+  }
+}

cli/src/index.js

@@ -0,0 +1,234 @@
+#!/usr/bin/env node
+
+import { program } from 'commander/esm.mjs';
+import JSON5 from 'json5';
+import path from 'path';
+import { promises as fsp } from 'fs';
+import ora from 'ora';
+import kleur from 'kleur';
+
+import { ImagePool, preprocessors, encoders } from '@squoosh/lib';
+
+function clamp(v, min, max) {
+  if (v < min) return min;
+  if (v > max) return max;
+  return v;
+}
+
+const suffix = ['B', 'KB', 'MB'];
+function prettyPrintSize(size) {
+  const base = Math.floor(Math.log2(size) / 10);
+  const index = clamp(base, 0, 2);
+  return (size / 2 ** (10 * index)).toFixed(2) + suffix[index];
+}
+
+function progressTracker(results) {
+  const spinner = ora();
+  const tracker = {};
+  tracker.spinner = spinner;
+  tracker.progressOffset = 0;
+  tracker.totalOffset = 0;
+  let status = '';
+  tracker.setStatus = (text) => {
+    status = text || '';
+    update();
+  };
+  let progress = '';
+  tracker.setProgress = (done, total) => {
+    spinner.prefixText = kleur.dim(`${done}/${total}`);
+    const completeness =
+      (tracker.progressOffset + done) / (tracker.totalOffset + total);
+    progress = kleur.cyan(
+      `▐${'▨'.repeat((completeness * 10) | 0).padEnd(10, '╌')}▌ `,
+    );
+    update();
+  };
+  function update() {
+    spinner.text = progress + kleur.bold(status) + getResultsText();
+  }
+  tracker.finish = (text) => {
+    spinner.succeed(kleur.bold(text) + getResultsText());
+  };
+  function getResultsText() {
+    let out = '';
+    for (const result of results.values()) {
+      out += `\n ${kleur.cyan(result.file)}: ${prettyPrintSize(result.size)}`;
+      for (const { outputFile, size: outputSize, infoText } of result.outputs) {
+        out += `\n  ${kleur.dim('└')} ${kleur.cyan(
+          outputFile.padEnd(5),
+        )} → ${prettyPrintSize(outputSize)}`;
+        const percent = ((outputSize / result.size) * 100).toPrecision(3);
+        out += ` (${kleur[outputSize > result.size ? 'red' : 'green'](
+          percent + '%',
+        )})`;
+        if (infoText) out += kleur.yellow(infoText);
+      }
+    }
+    return out || '\n';
+  }
+  spinner.start();
+  return tracker;
+}
+
+async function getInputFiles(paths) {
+  const validFiles = [];
+
+  for (const inputPath of paths) {
+    const files = (await fsp.lstat(inputPath)).isDirectory()
+      ? (await fsp.readdir(inputPath, { withFileTypes: true }))
+          .filter((dirent) => dirent.isFile())
+          .map((dirent) => path.join(inputPath, dirent.name))
+      : [inputPath];
+    for (const file of files) {
+      try {
+        await fsp.stat(file);
+      } catch (err) {
+        if (err.code === 'ENOENT') {
+          console.warn(
+            `Warning: Input file does not exist: ${path.resolve(file)}`,
+          );
+          continue;
+        } else {
+          throw err;
+        }
+      }
+
+      validFiles.push(file);
+    }
+  }
+
+  return validFiles;
+}
+
+async function processFiles(files) {
+  files = await getInputFiles(files);
+
+  const imagePool = new ImagePool();
+
+  const results = new Map();
+  const progress = progressTracker(results);
+
+  progress.setStatus('Decoding...');
+  progress.totalOffset = files.length;
+  progress.setProgress(0, files.length);
+
+  // Create output directory
+  await fsp.mkdir(program.opts().outputDir, { recursive: true });
+
+  let decoded = 0;
+  let decodedFiles = await Promise.all(
+    files.map(async (file) => {
+      const image = imagePool.ingestImage(file);
+      await image.decoded;
+      results.set(image, {
+        file,
+        size: (await image.decoded).size,
+        outputs: [],
+      });
+      progress.setProgress(++decoded, files.length);
+      return image;
+    }),
+  );
+
+  const preprocessOptions = {};
+
+  for (const preprocessorName of Object.keys(preprocessors)) {
+    if (!program.opts()[preprocessorName]) {
+      continue;
+    }
+    preprocessOptions[preprocessorName] = JSON5.parse(
+      program.opts()[preprocessorName],
+    );
+  }
+
+  for (const image of decodedFiles) {
+    image.preprocess(preprocessOptions);
+  }
+
+  await Promise.all(decodedFiles.map((image) => image.decoded));
+
+  progress.progressOffset = decoded;
+  progress.setStatus(
+    'Encoding ' + kleur.dim(`(${imagePool.workerPool.numWorkers} threads)`),
+  );
+  progress.setProgress(0, files.length);
+
+  const jobs = [];
+  let jobsStarted = 0;
+  let jobsFinished = 0;
+  for (const image of decodedFiles) {
+    const originalFile = results.get(image).file;
+
+    const encodeOptions = {
+      optimizerButteraugliTarget: Number(
+        program.opts().optimizerButteraugliTarget,
+      ),
+      maxOptimizerRounds: Number(program.opts().maxOptimizerRounds),
+    };
+    for (const encName of Object.keys(encoders)) {
+      if (!program.opts()[encName]) {
+        continue;
+      }
+      const encParam = program.opts()[encName];
+      const encConfig =
+        encParam.toLowerCase() === 'auto' ? 'auto' : JSON5.parse(encParam);
+      encodeOptions[encName] = encConfig;
+    }
+    jobsStarted++;
+    const job = image.encode(encodeOptions).then(async () => {
+      jobsFinished++;
+      const outputPath = path.join(
+        program.opts().outputDir,
+        path.basename(originalFile, path.extname(originalFile)) +
+        program.opts().suffix
+      );
+      for (const output of Object.values(image.encodedWith)) {
+        const outputFile = `${outputPath}.${(await output).extension}`;
+        await fsp.writeFile(outputFile, (await output).binary);
+        results
+          .get(image)
+          .outputs.push(Object.assign(await output, { outputFile }));
+      }
+      progress.setProgress(jobsFinished, jobsStarted);
+    });
+    jobs.push(job);
+  }
+
+  // update the progress to account for multi-format
+  progress.setProgress(jobsFinished, jobsStarted);
+  // Wait for all jobs to finish
+  await Promise.all(jobs);
+  await imagePool.close();
+  progress.finish('Squoosh results:');
+}
+
+program
+  .name('squoosh-cli')
+  .arguments('<files...>')
+  .option('-d, --output-dir <dir>', 'Output directory', '.')
+  .option('-s, --suffix <suffix>', 'Append suffix to output files', '')
+  .option(
+    '--max-optimizer-rounds <rounds>',
+    'Maximum number of compressions to use for auto optimizations',
+    '6',
+  )
+  .option(
+    '--optimizer-butteraugli-target <butteraugli distance>',
+    'Target Butteraugli distance for auto optimizer',
+    '1.4',
+  )
+  .action(processFiles);
+
+// Create a CLI option for each supported preprocessor
+for (const [key, value] of Object.entries(preprocessors)) {
+  program.option(`--${key} [config]`, value.description);
+}
+// Create a CLI option for each supported encoder
+for (const [key, value] of Object.entries(encoders)) {
+  program.option(
+    `--${key} [config]`,
+    `Use ${value.name} to generate a .${value.extension} file with the given configuration`,
+  );
+}
+
+program.parse(process.argv);

client-tsconfig.json

@@ -14,7 +14,6 @@
     // for comlink
     "src/features/**/worker/**/*",
     "src/features-worker/**/*",
-    "src/features/worker-utils/**/*",
+    "src/features/worker-utils/**/*"
-    "src/worker-shared/**/*"
   ]
 }

codecs/avif/Makefile

@@ -1,9 +1,9 @@
-# using libavif from https://github.com/AOMediaCodec/libavif
+# libavif and libaom versions are from
-CODEC_URL = https://github.com/AOMediaCodec/libavif/archive/refs/tags/v1.0.1.tar.gz
+# https://docs.google.com/document/d/1wEEA5rRU7wT54k41u3qyZIZHDCJArIMzLuzsrLAwaK8/edit
+CODEC_URL = https://github.com/AOMediaCodec/libavif/archive/1c39e772c2c0d687691dd4b589a12c323f5f767d.tar.gz
 CODEC_PACKAGE = node_modules/libavif.tar.gz
 
-# using libaom from https://aomedia.googlesource.com/aom
+LIBAOM_URL = https://aomedia.googlesource.com/aom/+archive/v3.1.0.tar.gz
-LIBAOM_URL = https://aomedia.googlesource.com/aom/+archive/v3.7.0.tar.gz
 LIBAOM_PACKAGE = node_modules/libaom.tar.gz
 
 export CODEC_DIR = node_modules/libavif
@@ -11,6 +11,7 @@ export BUILD_DIR = node_modules/build
 export LIBAOM_DIR = node_modules/libaom
 
 override CFLAGS += "-Wno-unused-macros"
+export
 
 OUT_ENC_JS = enc/avif_enc.js
 OUT_NODE_ENC_JS = enc/avif_node_enc.js
@@ -27,9 +28,10 @@ HELPER_MAKEFLAGS := -f helper.Makefile
 
 .PHONY: all clean
 
-all: $(OUT_ENC_JS) $(OUT_DEC_JS) $(OUT_ENC_MT_JS)
+all: $(OUT_ENC_JS) $(OUT_DEC_JS) $(OUT_ENC_MT_JS) $(OUT_NODE_ENC_JS) $(OUT_NODE_ENC_MT_JS) $(OUT_NODE_DEC_JS)
 
-$(OUT_ENC_JS): $(OUT_ENC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLists.txt
+$(OUT_NODE_ENC_JS) $(OUT_NODE_ENC_MT_JS): ENVIRONMENT=node
+$(OUT_NODE_ENC_JS) $(OUT_ENC_JS): $(OUT_ENC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLists.txt
 	$(MAKE) \
 		$(HELPER_MAKEFLAGS) \
 		OUT_JS=$@ \
@@ -40,9 +42,9 @@ $(OUT_ENC_JS): $(OUT_ENC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLis
 			-DCONFIG_AV1_HIGHBITDEPTH=0 \
 		" \
 		ENVIRONMENT=$(ENVIRONMENT) \
-		LIBAVIF_FLAGS="-DAVIF_CODEC_AOM_DECODE=0 -DAVIF_CHROMA_DOWNSAMPLING_SHARP_YUV=ON"
+		LIBAVIF_FLAGS="-DAVIF_CODEC_AOM_DECODE=0"
 
-$(OUT_ENC_MT_JS): $(OUT_ENC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLists.txt
+$(OUT_ENC_MT_JS) $(OUT_NODE_ENC_MT_JS): $(OUT_ENC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLists.txt
 	$(MAKE) \
 		$(HELPER_MAKEFLAGS) \
 		OUT_JS=$@ \
@@ -52,10 +54,11 @@ $(OUT_ENC_MT_JS): $(OUT_ENC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMake
 			-DCONFIG_AV1_HIGHBITDEPTH=0 \
 		" \
 		ENVIRONMENT=$(ENVIRONMENT) \
-		LIBAVIF_FLAGS="-DAVIF_CODEC_AOM_DECODE=0 -DAVIF_CHROMA_DOWNSAMPLING_SHARP_YUV=ON" \
+		LIBAVIF_FLAGS="-DAVIF_CODEC_AOM_DECODE=0" \
 		OUT_FLAGS="-pthread"
 
-$(OUT_DEC_JS): $(OUT_DEC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLists.txt
+$(OUT_NODE_DEC_JS): ENVIRONMENT=node
+$(OUT_NODE_DEC_JS) $(OUT_DEC_JS): $(OUT_DEC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLists.txt
 	$(MAKE) \
 		$(HELPER_MAKEFLAGS) \
 		OUT_JS=$@ \
@@ -65,7 +68,7 @@ $(OUT_DEC_JS): $(OUT_DEC_CPP) $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_DIR)/CMakeLis
 			-DCONFIG_MULTITHREAD=0 \
 		" \
 		ENVIRONMENT=$(ENVIRONMENT) \
-		LIBAVIF_FLAGS="-DAVIF_CODEC_AOM_ENCODE=0 -DAVIF_CHROMA_DOWNSAMPLING_SHARP_YUV=0 -DAVIF_LOCAL_LIBSHARPYUV=0"
+		LIBAVIF_FLAGS="-DAVIF_CODEC_AOM_ENCODE=0"
 
 $(CODEC_PACKAGE):
 	mkdir -p $(@D)

codecs/avif/enc/avif_enc.cpp

@@ -3,22 +3,15 @@
 #include <emscripten/val.h>
 #include "avif/avif.h"
 
-#define RETURN_NULL_IF_NOT_EQUALS(val1, val2) \
-  if (val1 != val2)                           \
-    return val::null();
-#define RETURN_NULL_IF_EQUALS(val1, val2) \
-  if (val1 == val2)                       \
-    return val::null();
-
 using namespace emscripten;
 
 struct AvifOptions {
-  // [0 - 100]
+  // [0 - 63]
-  // 0 = worst quality
+  // 0 = lossless
-  // 100 = lossless
+  // 63 = worst quality
-  int quality;
+  int cqLevel;
-  // As above, but -1 means 'use quality'
+  // As above, but -1 means 'use cqLevel'
-  int qualityAlpha;
+  int cqAlphaLevel;
   // [0 - 6]
   // Creates 2^n tiles in that dimension
   int tileRowsLog2;
@@ -42,15 +35,11 @@ struct AvifOptions {
   int tune;
   // 0-50
   int denoiseLevel;
-  // toggles AVIF_CHROMA_DOWNSAMPLING_SHARP_YUV
-  bool enableSharpDownsampling;
 };
 
 thread_local const val Uint8Array = val::global("Uint8Array");
 
 val encode(std::string buffer, int width, int height, AvifOptions options) {
-  avifResult status;  // To check the return status for avif API's
-
   avifRWData output = AVIF_DATA_EMPTY;
   int depth = 8;
   avifPixelFormat format;
@@ -69,12 +58,11 @@ val encode(std::string buffer, int width, int height, AvifOptions options) {
       break;
   }
 
-  bool lossless = options.quality == AVIF_QUALITY_LOSSLESS &&
+  bool lossless = options.cqLevel == AVIF_QUANTIZER_LOSSLESS &&
-                  (options.qualityAlpha == -1 || options.qualityAlpha == AVIF_QUALITY_LOSSLESS) &&
+                  options.cqAlphaLevel <= AVIF_QUANTIZER_LOSSLESS &&
                   format == AVIF_PIXEL_FORMAT_YUV444;
 
   avifImage* image = avifImageCreate(width, height, depth, format);
-  RETURN_NULL_IF_EQUALS(image, NULL);
 
   if (lossless) {
     image->matrixCoefficients = AVIF_MATRIX_COEFFICIENTS_IDENTITY;
@@ -88,49 +76,40 @@ val encode(std::string buffer, int width, int height, AvifOptions options) {
   avifRGBImageSetDefaults(&srcRGB, image);
   srcRGB.pixels = rgba;
   srcRGB.rowBytes = width * 4;
-  if (options.enableSharpDownsampling) {
+  avifImageRGBToYUV(image, &srcRGB);
-    printf("Enabling AVIF_CHROMA_DOWNSAMPLING_SHARP_YUV\n");
-    srcRGB.chromaDownsampling = AVIF_CHROMA_DOWNSAMPLING_SHARP_YUV;
-  }
-  status = avifImageRGBToYUV(image, &srcRGB);
-  if (status == AVIF_RESULT_NOT_IMPLEMENTED) {
-    printf("libsharpyuv not implemented methinks\n");
-  }
-  RETURN_NULL_IF_NOT_EQUALS(status, AVIF_RESULT_OK);
 
   avifEncoder* encoder = avifEncoderCreate();
-  RETURN_NULL_IF_EQUALS(encoder, NULL);
 
   if (lossless) {
-    encoder->quality = AVIF_QUALITY_LOSSLESS;
+    encoder->minQuantizer = AVIF_QUANTIZER_LOSSLESS;
-    encoder->qualityAlpha = AVIF_QUALITY_LOSSLESS;
+    encoder->maxQuantizer = AVIF_QUANTIZER_LOSSLESS;
+    encoder->minQuantizerAlpha = AVIF_QUANTIZER_LOSSLESS;
+    encoder->maxQuantizerAlpha = AVIF_QUANTIZER_LOSSLESS;
   } else {
-    status = avifEncoderSetCodecSpecificOption(encoder, "sharpness",
+    encoder->minQuantizer = AVIF_QUANTIZER_BEST_QUALITY;
+    encoder->maxQuantizer = AVIF_QUANTIZER_WORST_QUALITY;
+    encoder->minQuantizerAlpha = AVIF_QUANTIZER_BEST_QUALITY;
+    encoder->maxQuantizerAlpha = AVIF_QUANTIZER_WORST_QUALITY;
+    avifEncoderSetCodecSpecificOption(encoder, "end-usage", "q");
+    avifEncoderSetCodecSpecificOption(encoder, "cq-level", std::to_string(options.cqLevel).c_str());
+    avifEncoderSetCodecSpecificOption(encoder, "sharpness",
                                       std::to_string(options.sharpness).c_str());
-    RETURN_NULL_IF_NOT_EQUALS(status, AVIF_RESULT_OK);
 
-    // Set base quality
+    if (options.cqAlphaLevel != -1) {
-    encoder->quality = options.quality;
+      avifEncoderSetCodecSpecificOption(encoder, "alpha:cq-level",
-    // Conditionally set alpha quality
+                                        std::to_string(options.cqAlphaLevel).c_str());
-    if (options.qualityAlpha == -1) {
-      encoder->qualityAlpha = options.quality;
-    } else {
-      encoder->qualityAlpha = options.qualityAlpha;
     }
 
-    if (options.tune == 2 || (options.tune == 0 && options.quality >= 50)) {
+    if (options.tune == 2 || (options.tune == 0 && options.cqLevel <= 32)) {
-      status = avifEncoderSetCodecSpecificOption(encoder, "tune", "ssim");
+      avifEncoderSetCodecSpecificOption(encoder, "tune", "ssim");
-      RETURN_NULL_IF_NOT_EQUALS(status, AVIF_RESULT_OK);
     }
 
     if (options.chromaDeltaQ) {
-      status = avifEncoderSetCodecSpecificOption(encoder, "enable-chroma-deltaq", "1");
+      avifEncoderSetCodecSpecificOption(encoder, "enable-chroma-deltaq", "1");
-      RETURN_NULL_IF_NOT_EQUALS(status, AVIF_RESULT_OK);
     }
 
-    status = avifEncoderSetCodecSpecificOption(encoder, "color:denoise-noise-level",
+    avifEncoderSetCodecSpecificOption(encoder, "color:denoise-noise-level",
                                       std::to_string(options.denoiseLevel).c_str());
-    RETURN_NULL_IF_NOT_EQUALS(status, AVIF_RESULT_OK);
   }
 
   encoder->maxThreads = emscripten_num_logical_cores();
@@ -152,8 +131,8 @@ val encode(std::string buffer, int width, int height, AvifOptions options) {
 
 EMSCRIPTEN_BINDINGS(my_module) {
   value_object<AvifOptions>("AvifOptions")
-      .field("quality", &AvifOptions::quality)
+      .field("cqLevel", &AvifOptions::cqLevel)
-      .field("qualityAlpha", &AvifOptions::qualityAlpha)
+      .field("cqAlphaLevel", &AvifOptions::cqAlphaLevel)
       .field("tileRowsLog2", &AvifOptions::tileRowsLog2)
       .field("tileColsLog2", &AvifOptions::tileColsLog2)
       .field("speed", &AvifOptions::speed)
@@ -161,8 +140,7 @@ EMSCRIPTEN_BINDINGS(my_module) {
       .field("sharpness", &AvifOptions::sharpness)
       .field("tune", &AvifOptions::tune)
       .field("denoiseLevel", &AvifOptions::denoiseLevel)
-      .field("subsample", &AvifOptions::subsample)
+      .field("subsample", &AvifOptions::subsample);
-      .field("enableSharpDownsampling", &AvifOptions::enableSharpDownsampling);
 
   function("encode", &encode);
 }

codecs/avif/enc/avif_enc.d.ts

@@ -5,16 +5,15 @@ export const enum AVIFTune {
 }
 
 export interface EncodeOptions {
-  quality: number;
+  cqLevel: number;
-  qualityAlpha: number;
   denoiseLevel: number;
+  cqAlphaLevel: number;
   tileRowsLog2: number;
   tileColsLog2: number;
   speed: number;
   subsample: number;
   chromaDeltaQ: boolean;
   sharpness: number;
-  enableSharpDownsampling: boolean;
   tune: AVIFTune;
 }
 

codecs/avif/enc/avif_enc_mt.worker.js

@@ -1 +1 @@
-"use strict";var Module={};var initializedJS=false;function threadPrintErr(){var text=Array.prototype.slice.call(arguments).join(" ");console.error(text)}function threadAlert(){var text=Array.prototype.slice.call(arguments).join(" ");postMessage({cmd:"alert",text:text,threadId:Module["_pthread_self"]()})}var err=threadPrintErr;self.alert=threadAlert;Module["instantiateWasm"]=function(info,receiveInstance){var instance=new WebAssembly.Instance(Module["wasmModule"],info);receiveInstance(instance);Module["wasmModule"]=null;return instance.exports};self.onmessage=function(e){try{if(e.data.cmd==="load"){Module["wasmModule"]=e.data.wasmModule;Module["wasmMemory"]=e.data.wasmMemory;Module["buffer"]=Module["wasmMemory"].buffer;Module["ENVIRONMENT_IS_PTHREAD"]=true;(e.data.urlOrBlob?import(e.data.urlOrBlob):import("./avif_enc_mt.js")).then(function(exports){return exports.default(Module)}).then(function(instance){Module=instance})}else if(e.data.cmd==="run"){Module["__performance_now_clock_drift"]=performance.now()-e.data.time;Module["__emscripten_thread_init"](e.data.threadInfoStruct,0,0);var max=e.data.stackBase;var top=e.data.stackBase+e.data.stackSize;Module["establishStackSpace"](top,max);Module["PThread"].receiveObjectTransfer(e.data);Module["PThread"].threadInit();if(!initializedJS){Module["___embind_register_native_and_builtin_types"]();initializedJS=true}try{var result=Module["invokeEntryPoint"](e.data.start_routine,e.data.arg);if(Module["keepRuntimeAlive"]()){Module["PThread"].setExitStatus(result)}else{Module["__emscripten_thread_exit"](result)}}catch(ex){if(ex!="unwind"){if(ex instanceof Module["ExitStatus"]){if(Module["keepRuntimeAlive"]()){}else{Module["__emscripten_thread_exit"](ex.status)}}else{throw ex}}}}else if(e.data.cmd==="cancel"){if(Module["_pthread_self"]()){Module["__emscripten_thread_exit"](-1)}postMessage({"cmd":"cancelDone"})}else if(e.data.target==="setimmediate"){}else if(e.data.cmd==="processThreadQueue"){if(Module["_pthread_self"]()){Module["_emscripten_current_thread_process_queued_calls"]()}}else{err("worker.js received unknown command "+e.data.cmd);err(e.data)}}catch(ex){err("worker.js onmessage() captured an uncaught exception: "+ex);if(ex&&ex.stack)err(ex.stack);throw ex}};
+"use strict";var Module={};var initializedJS=false;function threadPrintErr(){var text=Array.prototype.slice.call(arguments).join(" ");console.error(text)}function threadAlert(){var text=Array.prototype.slice.call(arguments).join(" ");postMessage({cmd:"alert",text:text,threadId:Module["_pthread_self"]()})}var err=threadPrintErr;self.alert=threadAlert;Module["instantiateWasm"]=function(info,receiveInstance){var instance=new WebAssembly.Instance(Module["wasmModule"],info);receiveInstance(instance);Module["wasmModule"]=null;return instance.exports};function moduleLoaded(){}self.onmessage=function(e){try{if(e.data.cmd==="load"){Module["wasmModule"]=e.data.wasmModule;Module["wasmMemory"]=e.data.wasmMemory;Module["buffer"]=Module["wasmMemory"].buffer;Module["ENVIRONMENT_IS_PTHREAD"]=true;(e.data.urlOrBlob?import(e.data.urlOrBlob):import("./avif_enc_mt.js")).then(function(exports){return exports.default(Module)}).then(function(instance){Module=instance;moduleLoaded()})}else if(e.data.cmd==="objectTransfer"){Module["PThread"].receiveObjectTransfer(e.data)}else if(e.data.cmd==="run"){Module["__performance_now_clock_drift"]=performance.now()-e.data.time;Module["__emscripten_thread_init"](e.data.threadInfoStruct,0,0);var max=e.data.stackBase;var top=e.data.stackBase+e.data.stackSize;Module["establishStackSpace"](top,max);Module["PThread"].receiveObjectTransfer(e.data);Module["PThread"].threadInit();if(!initializedJS){Module["___embind_register_native_and_builtin_types"]();initializedJS=true}try{var result=Module["invokeEntryPoint"](e.data.start_routine,e.data.arg);if(Module["keepRuntimeAlive"]()){Module["PThread"].setExitStatus(result)}else{Module["PThread"].threadExit(result)}}catch(ex){if(ex==="Canceled!"){Module["PThread"].threadCancel()}else if(ex!="unwind"){if(ex instanceof Module["ExitStatus"]){if(Module["keepRuntimeAlive"]()){}else{Module["PThread"].threadExit(ex.status)}}else{Module["PThread"].threadExit(-2);throw ex}}}}else if(e.data.cmd==="cancel"){if(Module["_pthread_self"]()){Module["PThread"].threadCancel()}}else if(e.data.target==="setimmediate"){}else if(e.data.cmd==="processThreadQueue"){if(Module["_pthread_self"]()){Module["_emscripten_current_thread_process_queued_calls"]()}}else{err("worker.js received unknown command "+e.data.cmd);err(e.data)}}catch(ex){err("worker.js onmessage() captured an uncaught exception: "+ex);if(ex&&ex.stack)err(ex.stack);throw ex}};

codecs/avif/helper.Makefile

@@ -10,12 +10,6 @@
 #   $(LIBAVIF_FLAGS)
 #   $(ENVIRONMENT)
 
-# Take from libavif/ext/libsharpyuv.cmd
-WEBP_URL = https://chromium.googlesource.com/webm/libwebp
-WEBP_COMMIT = e2c85878f6a33f29948b43d3492d9cdaf801aa54
-LIBSHARPYUV_DIR = $(CODEC_DIR)/ext/libwebp
-
-# $(OUT_JS) is something like "enc/avif_enc.js" or "enc/avif_enc_mt.js"
 OUT_BUILD_DIR := $(BUILD_DIR)/$(basename $(OUT_JS))
 
 CODEC_BUILD_DIR := $(OUT_BUILD_DIR)/libavif
@@ -24,9 +18,6 @@ CODEC_OUT := $(CODEC_BUILD_DIR)/libavif.a
 LIBAOM_BUILD_DIR := $(OUT_BUILD_DIR)/libaom
 LIBAOM_OUT := $(LIBAOM_BUILD_DIR)/libaom.a
 
-LIBSHARPYUV_BUILD_DIR := $(OUT_BUILD_DIR)/libsharpyuvLOLOLOL
-LIBSHARPYUV_OUT := $(LIBSHARPYUV_BUILD_DIR)/libsharpyuv.a
-
 OUT_WASM = $(OUT_JS:.js=.wasm)
 OUT_WORKER=$(OUT_JS:.js=.worker.js)
 
@@ -34,13 +25,6 @@ OUT_WORKER=$(OUT_JS:.js=.worker.js)
 
 all: $(OUT_JS)
 
-# Only add libsharpyuv as a dependency for encoders.
-# Yes, that if statement is true for encoders.
-ifneq (,$(findstring enc/, $(OUT_JS)))
-$(OUT_JS): $(LIBSHARPYUV_OUT)
-$(CODEC_OUT): $(LIBSHARPYUV_OUT)
-endif
-
 $(OUT_JS): $(OUT_CPP) $(LIBAOM_OUT) $(CODEC_OUT)
 	$(CXX) \
 		-I $(CODEC_DIR)/include \
@@ -55,7 +39,6 @@ $(OUT_JS): $(OUT_CPP) $(LIBAOM_OUT) $(CODEC_OUT)
 
 $(CODEC_OUT): $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_OUT)
 	emcmake cmake \
-		-DCMAKE_LIBRARY_PATH=$(LIBSHARPYUV_BUILD_DIR) \
 		-DCMAKE_BUILD_TYPE=Release \
 		-DBUILD_SHARED_LIBS=0 \
 		-DAVIF_CODEC_AOM=1 \
@@ -84,21 +67,6 @@ $(LIBAOM_OUT): $(LIBAOM_DIR)/CMakeLists.txt
 		$(LIBAOM_DIR) && \
 	$(MAKE) -C $(LIBAOM_BUILD_DIR)
 
-$(LIBSHARPYUV_OUT): $(LIBSHARPYUV_DIR)/CMakeLists.txt
-		emcmake cmake \
-			-DBUILD_SHARED_LIBS=OFF \
-			-DCMAKE_BUILD_TYPE=Release \
-			-B $(LIBSHARPYUV_BUILD_DIR) \
-			$(LIBSHARPYUV_DIR)
-		$(MAKE) -C $(LIBSHARPYUV_BUILD_DIR) sharpyuv
-
-$(LIBSHARPYUV_DIR)/CMakeLists.txt: $(CODEC_DIR)/CMakeLists.txt
-	cd $(CODEC_DIR)/ext && \
-		git clone $(WEBP_URL) --single-branch libwebp && \
-		cd libwebp && \
-		git checkout $(WEBP_COMMIT)
-
-
 clean:
 	$(RM) $(OUT_JS) $(OUT_WASM) $(OUT_WORKER)
 	$(MAKE) -C $(CODEC_BUILD_DIR) clean

codecs/basis/LICENSE.codec.md

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
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codecs/basis/Makefile

@@ -0,0 +1,83 @@
+CODEC_URL := https://github.com/BinomialLLC/basis_universal/archive/refs/tags/v1.15_rel2.tar.gz
+CODEC_DIR := node_modules/basis
+CODEC_BUILD_DIR := $(CODEC_DIR)/build
+CODEC_LIB := $(CODEC_BUILD_DIR)/basis.a
+ENVIRONMENT = worker
+
+OUT_JS := enc/basis_enc.js dec/basis_dec.js
+OUT_WASM := $(OUT_JS:.js=.wasm)
+
+COMMON_FLAGS := -O3 -fno-strict-aliasing
+
+override 	CXXFLAGS += $(COMMON_FLAGS)
+override 	CFLAGS += $(COMMAN_FLAGS)
+
+CODEC_CPP_SOURCE_FILES := \
+	encoder/basisu_comp.cpp \
+	encoder/basisu_enc.cpp \
+	encoder/basisu_backend.cpp \
+	encoder/basisu_basis_file.cpp \
+	encoder/basisu_etc.cpp \
+	encoder/basisu_uastc_enc.cpp \
+	encoder/basisu_gpu_texture.cpp \
+	encoder/basisu_frontend.cpp \
+	encoder/basisu_bc7enc.cpp \
+	encoder/basisu_pvrtc1_4.cpp \
+	encoder/basisu_astc_decomp.cpp \
+	encoder/basisu_global_selector_palette_helpers.cpp \
+	encoder/basisu_resampler.cpp \
+	encoder/basisu_kernels_sse.cpp \
+	encoder/basisu_resample_filters.cpp \
+	encoder/jpgd.cpp \
+	encoder/lodepng.cpp \
+	transcoder/basisu_transcoder.cpp
+
+CODEC_C_SOURCE_FILES := \
+	encoder/apg_bmp.c \
+	zstd/zstd.c
+
+.PHONY: all clean
+
+all: $(CODEC_DIR) $(OUT_JS)
+
+# Define dependencies for all variations of build artifacts.
+$(filter enc/%,$(OUT_JS)): enc/basis_enc.cpp
+$(filter dec/%,$(OUT_JS)): dec/basis_dec.cpp
+
+# TODO: Make it build for node
+# enc/mozjpeg_node_enc.js dec/mozjpeg_node_dec.js: ENVIRONMENT = node
+
+%.js: $(CODEC_LIB)
+	$(CXX) \
+		-I $(CODEC_DIR)/encoder \
+		-I $(CODEC_DIR)/transcoder \
+		${CXXFLAGS} \
+		${LDFLAGS} \
+		--closure 1 \
+		--bind \
+		-s ALLOW_MEMORY_GROWTH=1 \
+		-s MODULARIZE=1 \
+		-s TEXTDECODER=2 \
+		-s ENVIRONMENT=$(ENVIRONMENT) \
+		-s EXPORT_ES6=1 \
+		-o $@ \
+		$+ 
+
+$(CODEC_LIB): $(CODEC_DIR)
+	mkdir -p $(CODEC_BUILD_DIR)
+	cd $(CODEC_BUILD_DIR) && \
+	$(CXX) \
+		${CXXFLAGS} \
+		-c $(addprefix ../, $(CODEC_CPP_SOURCE_FILES))
+	cd $(CODEC_BUILD_DIR) && \
+	$(CC) \
+		${CFLAGS} \
+		-c $(addprefix ../, $(CODEC_C_SOURCE_FILES))
+	$(AR) rc $(CODEC_LIB) $(CODEC_BUILD_DIR)/*.o
+
+$(CODEC_DIR):
+	mkdir -p $@
+	curl -sL $(CODEC_URL) | tar xz --strip 1 -C $@
+
+clean:
+	$(RM) -r $(OUT_JS) $(OUT_WASM) $(CODEC_BUILD_DIR)

codecs/basis/dec/basis_dec.cpp

@@ -0,0 +1,46 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include <inttypes.h>
+#include <string>
+#include "basisu_global_selector_palette.h"
+#include "basisu_transcoder.h"
+
+using namespace emscripten;
+using namespace basisu;
+
+thread_local const val Uint8ClampedArray = val::global("Uint8ClampedArray");
+thread_local const val ImageData = val::global("ImageData");
+
+val decode(std::string data) {
+  basist::basisu_transcoder_init();
+
+  basist::etc1_global_selector_codebook sel_codebook = basist::etc1_global_selector_codebook(
+      basist::g_global_selector_cb_size, basist::g_global_selector_cb);
+  basist::ktx2_transcoder transcoder = basist::ktx2_transcoder(&sel_codebook);
+
+  const void* dataPtr = reinterpret_cast<const void*>(data.c_str());
+  auto dataSize = data.size();
+  transcoder.init(dataPtr, dataSize);
+
+  auto header = transcoder.get_header();
+  auto image_width = static_cast<uint32_t>(header.m_pixel_width);
+  auto image_height = static_cast<uint32_t>(header.m_pixel_height);
+
+  transcoder.start_transcoding();
+  auto buffer = std::vector<uint8_t>(image_width * image_height * 4);
+  auto ok = transcoder.transcode_image_level(
+      0 /* level_index */, 0 /* layer_index */, 0 /* face_index */, buffer.data(),
+      buffer.size() / 4, basist::transcoder_texture_format::cTFRGBA32, 0 /* decode_flags */,
+      image_width /* output_row_pitch_in_blocks_or_pixels */);
+  if (!ok) {
+    return val(std::string("Could not decode"));
+  }
+
+  auto img_data_data = Uint8ClampedArray.new_(typed_memory_view(buffer.size(), buffer.data()));
+  auto imgData = ImageData.new_(img_data_data, image_width, image_height);
+  return imgData;
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  function("decode", &decode);
+}

codecs/basis/dec/basis_dec.d.ts

@@ -0,0 +1,7 @@
+export interface BasisModule extends EmscriptenWasm.Module {
+  decode(data: BufferSource): ImageData | null;
+}
+
+declare var moduleFactory: EmscriptenWasm.ModuleFactory<BasisModule>;
+
+export default moduleFactory;

codecs/basis/dec/basis_dec.js

@@ -0,0 +1,56 @@
+
+var Module = (function() {
+  var _scriptDir = import.meta.url;
+  
+  return (
+function(Module) {
+  Module = Module || {};
+
+
+var e;e||(e=typeof Module !== 'undefined' ? Module : {});var aa,r;e.ready=new Promise(function(a,b){aa=a;r=b});var t={},u;for(u in e)e.hasOwnProperty(u)&&(t[u]=e[u]);var v="",w;v=self.location.href;_scriptDir&&(v=_scriptDir);0!==v.indexOf("blob:")?v=v.substr(0,v.lastIndexOf("/")+1):v="";w=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)};var ba=e.print||console.log.bind(console),y=e.printErr||console.warn.bind(console);
+for(u in t)t.hasOwnProperty(u)&&(e[u]=t[u]);t=null;var z;e.wasmBinary&&(z=e.wasmBinary);var noExitRuntime=e.noExitRuntime||!0;"object"!==typeof WebAssembly&&A("no native wasm support detected");var C,ca=!1,da=new TextDecoder("utf8");function D(a,b){if(!a)return"";b=a+b;for(var c=a;!(c>=b)&&E[c];)++c;return da.decode(E.subarray(a,c))}
+function ea(a,b,c){var d=E;if(0<c){c=b+c-1;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var k=a.charCodeAt(++f);g=65536+((g&1023)<<10)|k&1023}if(127>=g){if(b>=c)break;d[b++]=g}else{if(2047>=g){if(b+1>=c)break;d[b++]=192|g>>6}else{if(65535>=g){if(b+2>=c)break;d[b++]=224|g>>12}else{if(b+3>=c)break;d[b++]=240|g>>18;d[b++]=128|g>>12&63}d[b++]=128|g>>6&63}d[b++]=128|g&63}}d[b]=0}}var fa=new TextDecoder("utf-16le");
+function ha(a,b){var c=a>>1;for(b=c+b/2;!(c>=b)&&F[c];)++c;return fa.decode(E.subarray(a,c<<1))}function ia(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var d=b;c=c<2*a.length?c/2:a.length;for(var f=0;f<c;++f)G[b>>1]=a.charCodeAt(f),b+=2;G[b>>1]=0;return b-d}function ja(a){return 2*a.length}function ka(a,b){for(var c=0,d="";!(c>=b/4);){var f=I[a+4*c>>2];if(0==f)break;++c;65536<=f?(f-=65536,d+=String.fromCharCode(55296|f>>10,56320|f&1023)):d+=String.fromCharCode(f)}return d}
+function la(a,b,c){void 0===c&&(c=2147483647);if(4>c)return 0;var d=b;c=d+c-4;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var k=a.charCodeAt(++f);g=65536+((g&1023)<<10)|k&1023}I[b>>2]=g;b+=4;if(b+4>c)break}I[b>>2]=0;return b-d}function ma(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&++c;b+=4}return b}var na,oa,E,G,F,I,J,pa,qa;
+function ra(){var a=C.buffer;na=a;e.HEAP8=oa=new Int8Array(a);e.HEAP16=G=new Int16Array(a);e.HEAP32=I=new Int32Array(a);e.HEAPU8=E=new Uint8Array(a);e.HEAPU16=F=new Uint16Array(a);e.HEAPU32=J=new Uint32Array(a);e.HEAPF32=pa=new Float32Array(a);e.HEAPF64=qa=new Float64Array(a)}var L,sa=[],ta=[],ua=[];function va(){var a=e.preRun.shift();sa.unshift(a)}var M=0,wa=null,N=null;e.preloadedImages={};e.preloadedAudios={};
+function A(a){if(e.onAbort)e.onAbort(a);y(a);ca=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");r(a);throw a;}var O=(new URL("basis_dec.wasm",import.meta.url)).toString();function xa(){try{if(O==O&&z)return new Uint8Array(z);if(w)return w(O);throw"both async and sync fetching of the wasm failed";}catch(a){A(a)}}
+function ya(){return z||"function"!==typeof fetch?Promise.resolve().then(function(){return xa()}):fetch(O,{credentials:"same-origin"}).then(function(a){if(!a.ok)throw"failed to load wasm binary file at '"+O+"'";return a.arrayBuffer()}).catch(function(){return xa()})}function za(a){for(;0<a.length;){var b=a.shift();if("function"==typeof b)b(e);else{var c=b.M;"number"===typeof c?void 0===b.I?L.get(c)():L.get(c)(b.I):c(void 0===b.I?null:b.I)}}}
+function Aa(a){switch(a){case 1:return 0;case 2:return 1;case 4:return 2;case 8:return 3;default:throw new TypeError("Unknown type size: "+a);}}var Ba=void 0;function P(a){for(var b="";E[a];)b+=Ba[E[a++]];return b}var Q={},R={},S={};function Ca(a){if(void 0===a)return"_unknown";a=a.replace(/[^a-zA-Z0-9_]/g,"$");var b=a.charCodeAt(0);return 48<=b&&57>=b?"_"+a:a}
+function Da(a,b){a=Ca(a);return(new Function("body","return function "+a+'() {\n    "use strict";    return body.apply(this, arguments);\n};\n'))(b)}function Ea(a){var b=Error,c=Da(a,function(d){this.name=a;this.message=d;d=Error(d).stack;void 0!==d&&(this.stack=this.toString()+"\n"+d.replace(/^Error(:[^\n]*)?\n/,""))});c.prototype=Object.create(b.prototype);c.prototype.constructor=c;c.prototype.toString=function(){return void 0===this.message?this.name:this.name+": "+this.message};return c}
+var Fa=void 0;function T(a){throw new Fa(a);}var Ga=void 0;function Ha(a,b){function c(h){h=b(h);if(h.length!==d.length)throw new Ga("Mismatched type converter count");for(var m=0;m<d.length;++m)U(d[m],h[m])}var d=[];d.forEach(function(h){S[h]=a});var f=Array(a.length),g=[],k=0;a.forEach(function(h,m){R.hasOwnProperty(h)?f[m]=R[h]:(g.push(h),Q.hasOwnProperty(h)||(Q[h]=[]),Q[h].push(function(){f[m]=R[h];++k;k===g.length&&c(f)}))});0===g.length&&c(f)}
+function U(a,b,c){c=c||{};if(!("argPackAdvance"in b))throw new TypeError("registerType registeredInstance requires argPackAdvance");var d=b.name;a||T('type "'+d+'" must have a positive integer typeid pointer');if(R.hasOwnProperty(a)){if(c.L)return;T("Cannot register type '"+d+"' twice")}R[a]=b;delete S[a];Q.hasOwnProperty(a)&&(b=Q[a],delete Q[a],b.forEach(function(f){f()}))}var Ia=[],V=[{},{value:void 0},{value:null},{value:!0},{value:!1}];
+function La(a){4<a&&0===--V[a].J&&(V[a]=void 0,Ia.push(a))}function W(a){switch(a){case void 0:return 1;case null:return 2;case !0:return 3;case !1:return 4;default:var b=Ia.length?Ia.pop():V.length;V[b]={J:1,value:a};return b}}function Ma(a){return this.fromWireType(J[a>>2])}function Na(a){if(null===a)return"null";var b=typeof a;return"object"===b||"array"===b||"function"===b?a.toString():""+a}
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+function Qa(a){for(;a.length;){var b=a.pop();a.pop()(b)}}function Ra(a,b){var c=e;if(void 0===c[a].G){var d=c[a];c[a]=function(){c[a].G.hasOwnProperty(arguments.length)||T("Function '"+b+"' called with an invalid number of arguments ("+arguments.length+") - expects one of ("+c[a].G+")!");return c[a].G[arguments.length].apply(this,arguments)};c[a].G=[];c[a].G[d.K]=d}}
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+var hb={a:function(a,b,c,d){A("Assertion failed: "+D(a)+", at: "+[b?D(b):"unknown filename",c,d?D(d):"unknown function"])},g:function(){},r:function(){},x:function(a,b,c,d,f){var g=Aa(c);b=P(b);U(a,{name:b,fromWireType:function(k){return!!k},toWireType:function(k,h){return h?d:f},argPackAdvance:8,readValueFromPointer:function(k){if(1===c)var h=oa;else if(2===c)h=G;else if(4===c)h=I;else throw new TypeError("Unknown boolean type size: "+b);return this.fromWireType(h[k>>g])},H:null})},w:function(a,
+b){b=P(b);U(a,{name:b,fromWireType:function(c){var d=V[c].value;La(c);return d},toWireType:function(c,d){return W(d)},argPackAdvance:8,readValueFromPointer:Ma,H:null})},l:function(a,b,c){c=Aa(c);b=P(b);U(a,{name:b,fromWireType:function(d){return d},toWireType:function(d,f){if("number"!==typeof f&&"boolean"!==typeof f)throw new TypeError('Cannot convert "'+Na(f)+'" to '+this.name);return f},argPackAdvance:8,readValueFromPointer:Oa(b,c),H:null})},o:function(a,b,c,d,f,g){var k=Ta(b,c);a=P(a);f=Va(d,
+f);Sa(a,function(){Za("Cannot call "+a+" due to unbound types",k)},b-1);Ha(k,function(h){var m=a,l=a;h=[h[0],null].concat(h.slice(1));var p=f,q=h.length;2>q&&T("argTypes array size mismatch! Must at least get return value and 'this' types!");for(var x=null!==h[1]&&!1,B=!1,n=1;n<h.length;++n)if(null!==h[n]&&void 0===h[n].H){B=!0;break}var Ja="void"!==h[0].name,H="",K="";for(n=0;n<q-2;++n)H+=(0!==n?", ":"")+"arg"+n,K+=(0!==n?", ":"")+"arg"+n+"Wired";l="return function "+Ca(l)+"("+H+") {\nif (arguments.length !== "+
+(q-2)+") {\nthrowBindingError('function "+l+" called with ' + arguments.length + ' arguments, expected "+(q-2)+" args!');\n}\n";B&&(l+="var destructors = [];\n");var Ka=B?"destructors":"null";H="throwBindingError invoker fn runDestructors retType classParam".split(" ");p=[T,p,g,Qa,h[0],h[1]];x&&(l+="var thisWired = classParam.toWireType("+Ka+", this);\n");for(n=0;n<q-2;++n)l+="var arg"+n+"Wired = argType"+n+".toWireType("+Ka+", arg"+n+"); // "+h[n+2].name+"\n",H.push("argType"+n),p.push(h[n+2]);x&&
+(K="thisWired"+(0<K.length?", ":"")+K);l+=(Ja?"var rv = ":"")+"invoker(fn"+(0<K.length?", ":"")+K+");\n";if(B)l+="runDestructors(destructors);\n";else for(n=x?1:2;n<h.length;++n)q=1===n?"thisWired":"arg"+(n-2)+"Wired",null!==h[n].H&&(l+=q+"_dtor("+q+"); // "+h[n].name+"\n",H.push(q+"_dtor"),p.push(h[n].H));Ja&&(l+="var ret = retType.fromWireType(rv);\nreturn ret;\n");H.push(l+"}\n");h=Pa(H).apply(null,p);n=b-1;if(!e.hasOwnProperty(m))throw new Ga("Replacing nonexistant public symbol");void 0!==e[m].G&&
+void 0!==n?e[m].G[n]=h:(e[m]=h,e[m].K=n);return[]})},c:function(a,b,c,d,f){function g(l){return l}b=P(b);-1===f&&(f=4294967295);var k=Aa(c);if(0===d){var h=32-8*c;g=function(l){return l<<h>>>h}}var m=b.includes("unsigned");U(a,{name:b,fromWireType:g,toWireType:function(l,p){if("number"!==typeof p&&"boolean"!==typeof p)throw new TypeError('Cannot convert "'+Na(p)+'" to '+this.name);if(p<d||p>f)throw new TypeError('Passing a number "'+Na(p)+'" from JS side to C/C++ side to an argument of type "'+b+
+'", which is outside the valid range ['+d+", "+f+"]!");return m?p>>>0:p|0},argPackAdvance:8,readValueFromPointer:$a(b,k,0!==d),H:null})},b:function(a,b,c){function d(g){g>>=2;var k=J;return new f(na,k[g+1],k[g])}var f=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array][b];c=P(c);U(a,{name:c,fromWireType:d,argPackAdvance:8,readValueFromPointer:d},{L:!0})},m:function(a,b){b=P(b);var c="std::string"===b;U(a,{name:b,fromWireType:function(d){var f=J[d>>2];if(c)for(var g=
+d+4,k=0;k<=f;++k){var h=d+4+k;if(k==f||0==E[h]){g=D(g,h-g);if(void 0===m)var m=g;else m+=String.fromCharCode(0),m+=g;g=h+1}}else{m=Array(f);for(k=0;k<f;++k)m[k]=String.fromCharCode(E[d+4+k]);m=m.join("")}X(d);return m},toWireType:function(d,f){f instanceof ArrayBuffer&&(f=new Uint8Array(f));var g="string"===typeof f;g||f instanceof Uint8Array||f instanceof Uint8ClampedArray||f instanceof Int8Array||T("Cannot pass non-string to std::string");var k=(c&&g?function(){for(var l=0,p=0;p<f.length;++p){var q=
+f.charCodeAt(p);55296<=q&&57343>=q&&(q=65536+((q&1023)<<10)|f.charCodeAt(++p)&1023);127>=q?++l:l=2047>=q?l+2:65535>=q?l+3:l+4}return l}:function(){return f.length})(),h=gb(4+k+1);J[h>>2]=k;if(c&&g)ea(f,h+4,k+1);else if(g)for(g=0;g<k;++g){var m=f.charCodeAt(g);255<m&&(X(h),T("String has UTF-16 code units that do not fit in 8 bits"));E[h+4+g]=m}else for(g=0;g<k;++g)E[h+4+g]=f[g];null!==d&&d.push(X,h);return h},argPackAdvance:8,readValueFromPointer:Ma,H:function(d){X(d)}})},i:function(a,b,c){c=P(c);
+if(2===b){var d=ha;var f=ia;var g=ja;var k=function(){return F};var h=1}else 4===b&&(d=ka,f=la,g=ma,k=function(){return J},h=2);U(a,{name:c,fromWireType:function(m){for(var l=J[m>>2],p=k(),q,x=m+4,B=0;B<=l;++B){var n=m+4+B*b;if(B==l||0==p[n>>h])x=d(x,n-x),void 0===q?q=x:(q+=String.fromCharCode(0),q+=x),x=n+b}X(m);return q},toWireType:function(m,l){"string"!==typeof l&&T("Cannot pass non-string to C++ string type "+c);var p=g(l),q=gb(4+p+b);J[q>>2]=p>>h;f(l,q+4,p+b);null!==m&&m.push(X,q);return q},
+argPackAdvance:8,readValueFromPointer:Ma,H:function(m){X(m)}})},n:function(a,b){b=P(b);U(a,{N:!0,name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},e:La,f:function(a){if(0===a)return W(bb());var b=ab[a];a=void 0===b?P(a):b;return W(bb()[a])},j:function(a){4<a&&(V[a].J+=1)},k:function(a,b,c,d){a||T("Cannot use deleted val. handle = "+a);a=V[a].value;var f=db[b];if(!f){f="";for(var g=0;g<b;++g)f+=(0!==g?", ":"")+"arg"+g;var k="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";
+for(g=0;g<b;++g)k+="var argType"+g+" = requireRegisteredType(Module['HEAP32'][(argTypes >>> 2) + "+g+'], "parameter '+g+'");\nvar arg'+g+" = argType"+g+".readValueFromPointer(args);\nargs += argType"+g+"['argPackAdvance'];\n";f=(new Function("requireRegisteredType","Module","__emval_register",k+("var obj = new constructor("+f+");\nreturn __emval_register(obj);\n}\n")))(cb,e,W);db[b]=f}return f(a,c,d)},p:function(a,b){a=cb(a,"_emval_take_value");a=a.readValueFromPointer(b);return W(a)},d:function(){A()},
+t:function(a,b,c){E.copyWithin(a,b,b+c)},h:function(a){var b=E.length;a>>>=0;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var d=b*(1+.2/c);d=Math.min(d,a+100663296);d=Math.max(a,d);0<d%65536&&(d+=65536-d%65536);a:{try{C.grow(Math.min(2147483648,d)-na.byteLength+65535>>>16);ra();var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},v:function(){return 0},q:function(){},u:function(a,b,c,d){for(var f=0,g=0;g<c;g++){for(var k=I[b+8*g>>2],h=I[b+(8*g+4)>>2],m=0;m<h;m++){var l=E[k+m],p=eb[a];if(0===
+l||10===l){for(l=0;p[l]&&!(NaN<=l);)++l;l=da.decode(p.subarray?p.subarray(0,l):new Uint8Array(p.slice(0,l)));(1===a?ba:y)(l);p.length=0}else p.push(l)}f+=h}I[d>>2]=f;return 0},s:function(){}};
+(function(){function a(f){e.asm=f.exports;C=e.asm.y;ra();L=e.asm.E;ta.unshift(e.asm.z);M--;e.monitorRunDependencies&&e.monitorRunDependencies(M);0==M&&(null!==wa&&(clearInterval(wa),wa=null),N&&(f=N,N=null,f()))}function b(f){a(f.instance)}function c(f){return ya().then(function(g){return WebAssembly.instantiate(g,d)}).then(f,function(g){y("failed to asynchronously prepare wasm: "+g);A(g)})}var d={a:hb};M++;e.monitorRunDependencies&&e.monitorRunDependencies(M);if(e.instantiateWasm)try{return e.instantiateWasm(d,
+a)}catch(f){return y("Module.instantiateWasm callback failed with error: "+f),!1}(function(){return z||"function"!==typeof WebAssembly.instantiateStreaming||O.startsWith("data:application/octet-stream;base64,")||"function"!==typeof fetch?c(b):fetch(O,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,d).then(b,function(g){y("wasm streaming compile failed: "+g);y("falling back to ArrayBuffer instantiation");return c(b)})})})().catch(r);return{}})();
+e.___wasm_call_ctors=function(){return(e.___wasm_call_ctors=e.asm.z).apply(null,arguments)};var gb=e._malloc=function(){return(gb=e._malloc=e.asm.A).apply(null,arguments)},X=e._free=function(){return(X=e._free=e.asm.B).apply(null,arguments)},Ya=e.___getTypeName=function(){return(Ya=e.___getTypeName=e.asm.C).apply(null,arguments)};e.___embind_register_native_and_builtin_types=function(){return(e.___embind_register_native_and_builtin_types=e.asm.D).apply(null,arguments)};
+e.dynCall_jiji=function(){return(e.dynCall_jiji=e.asm.F).apply(null,arguments)};var Z;N=function ib(){Z||jb();Z||(N=ib)};
+function jb(){function a(){if(!Z&&(Z=!0,e.calledRun=!0,!ca)){za(ta);aa(e);if(e.onRuntimeInitialized)e.onRuntimeInitialized();if(e.postRun)for("function"==typeof e.postRun&&(e.postRun=[e.postRun]);e.postRun.length;){var b=e.postRun.shift();ua.unshift(b)}za(ua)}}if(!(0<M)){if(e.preRun)for("function"==typeof e.preRun&&(e.preRun=[e.preRun]);e.preRun.length;)va();za(sa);0<M||(e.setStatus?(e.setStatus("Running..."),setTimeout(function(){setTimeout(function(){e.setStatus("")},1);a()},1)):a())}}e.run=jb;
+if(e.preInit)for("function"==typeof e.preInit&&(e.preInit=[e.preInit]);0<e.preInit.length;)e.preInit.pop()();jb();
+
+
+  return Module.ready
+}
+);
+})();
+export default Module;

codecs/basis/enc/basis_enc.cpp

@@ -0,0 +1,96 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include <inttypes.h>
+#include "basisu_comp.h"
+#include "basisu_enc.h"
+
+using namespace emscripten;
+using namespace basisu;
+
+struct BasisOptions {
+  float quality;
+  uint8_t compression;
+  bool uastc;
+  bool mipmap;
+  bool srgb_mipmap;
+  std::string mipmap_filter;
+  bool perceptual;
+  bool y_flip;
+  uint32_t mipmap_min_dimension;
+};
+
+thread_local const val Uint8Array = val::global("Uint8Array");
+
+val encode(std::string image_in, int image_width, int image_height, BasisOptions opts) {
+  basisu_encoder_init();
+
+  basist::etc1_global_selector_codebook sel_codebook(basist::g_global_selector_cb_size,
+                                                     basist::g_global_selector_cb);
+  basis_compressor_params params;
+  basis_compressor compressor;
+  image img =
+      image(reinterpret_cast<const uint8_t*>(image_in.c_str()), image_width, image_height, 4);
+  // We don’t need the encoder to read/decode files from the filesystem
+  params.m_read_source_images = false;
+  // Writing is unnecessary, too
+  params.m_write_output_basis_files = false;
+  // No printf pls
+  params.m_status_output = false;
+  // True => UASTC, False => ETC1S
+  params.m_uastc = opts.uastc;
+  // Use the standardized KTX2 format
+  params.m_create_ktx2_file = true;
+  // Codebook, whatever this exactly is or does.
+  params.m_pSel_codebook = &sel_codebook;
+  // No multithreading. It apparently doesn’t work well in Wasm.
+  // But we still need to provide a job pool.
+  params.m_multithreading = false;
+  job_pool jpool(1);
+  params.m_pJob_pool = &jpool;
+
+  params.m_ktx2_uastc_supercompression = basist::KTX2_SS_ZSTANDARD;
+
+  params.m_perceptual = opts.perceptual;
+  params.m_y_flip = opts.y_flip;
+  params.m_mip_gen = opts.mipmap;
+  params.m_mip_srgb = opts.srgb_mipmap;
+  params.m_mip_filter = opts.mipmap_filter;
+  params.m_mip_smallest_dimension = opts.mipmap_min_dimension;
+  params.m_compression_level = opts.compression;
+  params.m_source_images.push_back(img);
+
+  if (opts.uastc) {
+    params.m_rdo_uastc_quality_scalar = opts.quality;
+    params.m_rdo_uastc = opts.quality != 0;
+  } else {
+    params.m_quality_level = static_cast<int>(opts.quality);
+  }
+
+  if (!compressor.init(params)) {
+    return val(std::string("Well something went wrong during init"));
+  }
+
+  if (compressor.process() != 0) {
+    return val(std::string("Well something went wrong during processing"));
+  }
+
+  auto comp_data = compressor.get_output_ktx2_file();
+  auto js_result = Uint8Array.new_(typed_memory_view(comp_data.size(), &comp_data[0]));
+  // Not sure if there is anything to free here
+  return js_result;
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  value_object<BasisOptions>("BasisOptions")
+      .field("quality", &BasisOptions::quality)
+      .field("compression", &BasisOptions::compression)
+      .field("uastc", &BasisOptions::uastc)
+      .field("perceptual", &BasisOptions::perceptual)
+      .field("y_flip", &BasisOptions::y_flip)
+      .field("mipmap", &BasisOptions::mipmap)
+      .field("srgb_mipmap", &BasisOptions::srgb_mipmap)
+      .field("mipmap_filter", &BasisOptions::mipmap_filter)
+      .field("mipmap_min_dimension", &BasisOptions::mipmap_min_dimension);
+
+  function("encode", &encode);
+}

codecs/basis/enc/basis_enc.d.ts

@@ -0,0 +1,24 @@
+export interface EncodeOptions {
+  quality: number;
+  compression: number;
+  uastc: boolean;
+  y_flip: boolean;
+  mipmap: boolean;
+  srgb_mipmap: boolean;
+  perceptual: boolean;
+  mipmap_filter: string;
+  mipmap_min_dimension: number;
+}
+
+export interface BasisModule extends EmscriptenWasm.Module {
+  encode(
+    data: BufferSource,
+    width: number,
+    height: number,
+    options: EncodeOptions,
+  ): Uint8Array | null;
+}
+
+declare var moduleFactory: EmscriptenWasm.ModuleFactory<BasisModule>;
+
+export default moduleFactory;

codecs/basis/enc/basis_enc.js

@@ -0,0 +1,62 @@
+
+var Module = (function() {
+  var _scriptDir = import.meta.url;
+  
+  return (
+function(Module) {
+  Module = Module || {};
+
+
+var f;f||(f=typeof Module !== 'undefined' ? Module : {});var aa,ba;f.ready=new Promise(function(a,b){aa=a;ba=b});var r={},t;for(t in f)f.hasOwnProperty(t)&&(r[t]=f[t]);var u="",ca;u=self.location.href;_scriptDir&&(u=_scriptDir);0!==u.indexOf("blob:")?u=u.substr(0,u.lastIndexOf("/")+1):u="";ca=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)};var da=f.print||console.log.bind(console),v=f.printErr||console.warn.bind(console);
+for(t in r)r.hasOwnProperty(t)&&(f[t]=r[t]);r=null;var ea=0,w;f.wasmBinary&&(w=f.wasmBinary);var noExitRuntime=f.noExitRuntime||!0;"object"!==typeof WebAssembly&&x("no native wasm support detected");var ha,ia=!1,ja=new TextDecoder("utf8");function B(a,b){if(!a)return"";b=a+b;for(var c=a;!(c>=b)&&C[c];)++c;return ja.decode(C.subarray(a,c))}
+function ka(a,b,c){var d=C;if(0<c){c=b+c-1;for(var e=0;e<a.length;++e){var g=a.charCodeAt(e);if(55296<=g&&57343>=g){var k=a.charCodeAt(++e);g=65536+((g&1023)<<10)|k&1023}if(127>=g){if(b>=c)break;d[b++]=g}else{if(2047>=g){if(b+1>=c)break;d[b++]=192|g>>6}else{if(65535>=g){if(b+2>=c)break;d[b++]=224|g>>12}else{if(b+3>=c)break;d[b++]=240|g>>18;d[b++]=128|g>>12&63}d[b++]=128|g>>6&63}d[b++]=128|g&63}}d[b]=0}}var la=new TextDecoder("utf-16le");
+function ma(a,b){var c=a>>1;for(b=c+b/2;!(c>=b)&&D[c];)++c;return la.decode(C.subarray(a,c<<1))}function na(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var d=b;c=c<2*a.length?c/2:a.length;for(var e=0;e<c;++e)E[b>>1]=a.charCodeAt(e),b+=2;E[b>>1]=0;return b-d}function oa(a){return 2*a.length}function pa(a,b){for(var c=0,d="";!(c>=b/4);){var e=F[a+4*c>>2];if(0==e)break;++c;65536<=e?(e-=65536,d+=String.fromCharCode(55296|e>>10,56320|e&1023)):d+=String.fromCharCode(e)}return d}
+function qa(a,b,c){void 0===c&&(c=2147483647);if(4>c)return 0;var d=b;c=d+c-4;for(var e=0;e<a.length;++e){var g=a.charCodeAt(e);if(55296<=g&&57343>=g){var k=a.charCodeAt(++e);g=65536+((g&1023)<<10)|k&1023}F[b>>2]=g;b+=4;if(b+4>c)break}F[b>>2]=0;return b-d}function ra(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&++c;b+=4}return b}var sa,H,C,E,D,F,I,ta,ua;
+function va(){var a=ha.buffer;sa=a;f.HEAP8=H=new Int8Array(a);f.HEAP16=E=new Int16Array(a);f.HEAP32=F=new Int32Array(a);f.HEAPU8=C=new Uint8Array(a);f.HEAPU16=D=new Uint16Array(a);f.HEAPU32=I=new Uint32Array(a);f.HEAPF32=ta=new Float32Array(a);f.HEAPF64=ua=new Float64Array(a)}var J,wa=[],xa=[],ya=[];function za(){var a=f.preRun.shift();wa.unshift(a)}var K=0,Aa=null,L=null;f.preloadedImages={};f.preloadedAudios={};
+function x(a){if(f.onAbort)f.onAbort(a);v(a);ia=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");ba(a);throw a;}var M=(new URL("basis_enc.wasm",import.meta.url)).toString();function Ba(){try{if(M==M&&w)return new Uint8Array(w);if(ca)return ca(M);throw"both async and sync fetching of the wasm failed";}catch(a){x(a)}}
+function Ca(){return w||"function"!==typeof fetch?Promise.resolve().then(function(){return Ba()}):fetch(M,{credentials:"same-origin"}).then(function(a){if(!a.ok)throw"failed to load wasm binary file at '"+M+"'";return a.arrayBuffer()}).catch(function(){return Ba()})}function Da(a){for(;0<a.length;){var b=a.shift();if("function"==typeof b)b(f);else{var c=b.Aa;"number"===typeof c?void 0===b.fa?J.get(c)():J.get(c)(b.fa):c(void 0===b.fa?null:b.fa)}}}
+function Ea(a){this.ea=a-16;this.va=function(b){F[this.ea+8>>2]=b};this.sa=function(b){F[this.ea+0>>2]=b};this.ta=function(){F[this.ea+4>>2]=0};this.ra=function(){H[this.ea+12>>0]=0};this.ua=function(){H[this.ea+13>>0]=0};this.oa=function(b,c){this.va(b);this.sa(c);this.ta();this.ra();this.ua()}}var Fa=0,Ga=[null,[],[]],Ha={},Ia={};function Ja(a){for(;a.length;){var b=a.pop();a.pop()(b)}}function Ka(a){return this.fromWireType(I[a>>2])}var N={},O={},La={};
+function Ma(a){if(void 0===a)return"_unknown";a=a.replace(/[^a-zA-Z0-9_]/g,"$");var b=a.charCodeAt(0);return 48<=b&&57>=b?"_"+a:a}function Na(a,b){a=Ma(a);return(new Function("body","return function "+a+'() {\n    "use strict";    return body.apply(this, arguments);\n};\n'))(b)}
+function Oa(a){var b=Error,c=Na(a,function(d){this.name=a;this.message=d;d=Error(d).stack;void 0!==d&&(this.stack=this.toString()+"\n"+d.replace(/^Error(:[^\n]*)?\n/,""))});c.prototype=Object.create(b.prototype);c.prototype.constructor=c;c.prototype.toString=function(){return void 0===this.message?this.name:this.name+": "+this.message};return c}var Pa=void 0;
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+function Ra(a){switch(a){case 1:return 0;case 2:return 1;case 4:return 2;case 8:return 3;default:throw new TypeError("Unknown type size: "+a);}}var Sa=void 0;function Q(a){for(var b="";C[a];)b+=Sa[C[a++]];return b}var Ta=void 0;function R(a){throw new Ta(a);}
+function P(a,b,c){c=c||{};if(!("argPackAdvance"in b))throw new TypeError("registerType registeredInstance requires argPackAdvance");var d=b.name;a||R('type "'+d+'" must have a positive integer typeid pointer');if(O.hasOwnProperty(a)){if(c.na)return;R("Cannot register type '"+d+"' twice")}O[a]=b;delete La[a];N.hasOwnProperty(a)&&(b=N[a],delete N[a],b.forEach(function(e){e()}))}var Ua=[],S=[{},{value:void 0},{value:null},{value:!0},{value:!1}];
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+function bb(a,b){var c=[];return function(){c.length=arguments.length;for(var d=0;d<arguments.length;d++)c[d]=arguments[d];a.includes("j")?(d=f["dynCall_"+a],d=c&&c.length?d.apply(null,[b].concat(c)):d.call(null,b)):d=J.get(b).apply(null,c);return d}}function U(a,b){a=Q(a);var c=a.includes("j")?bb(a,b):J.get(b);"function"!==typeof c&&R("unknown function pointer with signature "+a+": "+b);return c}var cb=void 0;function db(a){a=eb(a);var b=Q(a);V(a);return b}
+function fb(a,b){function c(g){e[g]||O[g]||(La[g]?La[g].forEach(c):(d.push(g),e[g]=!0))}var d=[],e={};b.forEach(c);throw new cb(a+": "+d.map(db).join([", "]));}function gb(a,b,c){switch(b){case 0:return c?function(d){return H[d]}:function(d){return C[d]};case 1:return c?function(d){return E[d>>1]}:function(d){return D[d>>1]};case 2:return c?function(d){return F[d>>2]}:function(d){return I[d>>2]};default:throw new TypeError("Unknown integer type: "+a);}}var hb={};
+function ib(){return"object"===typeof globalThis?globalThis:Function("return this")()}function jb(a,b){var c=O[a];void 0===c&&R(b+" has unknown type "+db(a));return c}var kb={};Pa=f.InternalError=Oa("InternalError");for(var lb=Array(256),mb=0;256>mb;++mb)lb[mb]=String.fromCharCode(mb);Sa=lb;Ta=f.BindingError=Oa("BindingError");f.count_emval_handles=function(){for(var a=0,b=5;b<S.length;++b)void 0!==S[b]&&++a;return a};
+f.get_first_emval=function(){for(var a=5;a<S.length;++a)if(void 0!==S[a])return S[a];return null};cb=f.UnboundTypeError=Oa("UnboundTypeError");
+var vb={a:function(a,b,c,d){x("Assertion failed: "+B(a)+", at: "+[b?B(b):"unknown filename",c,d?B(d):"unknown function"])},D:function(a){return nb(a+16)+16},R:function(){},z:function(a,b,c){(new Ea(a)).oa(b,c);Fa++;throw a;},s:function(){return 0},H:function(){return 0},I:function(){},P:function(a){var b=Ia[a];delete Ia[a];var c=b.pa,d=b.qa,e=b.ha,g=e.map(function(k){return k.ma}).concat(e.map(function(k){return k.xa}));Qa([a],g,function(k){var h={};e.forEach(function(l,m){var n=k[m],q=l.ka,y=l.la,
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+u:function(a,b,c){c=Ra(c);b=Q(b);P(a,{name:b,fromWireType:function(d){return d},toWireType:function(d,e){if("number"!==typeof e&&"boolean"!==typeof e)throw new TypeError('Cannot convert "'+Wa(e)+'" to '+this.name);return e},argPackAdvance:8,readValueFromPointer:Xa(b,c),da:null})},O:function(a,b,c,d,e,g){var k=ab(b,c);a=Q(a);e=U(d,e);$a(a,function(){fb("Cannot call "+a+" due to unbound types",k)},b-1);Qa([],k,function(h){var l=a,m=a;h=[h[0],null].concat(h.slice(1));var n=e,q=h.length;2>q&&R("argTypes array size mismatch! Must at least get return value and 'this' types!");
+for(var y=null!==h[1]&&!1,z=!1,p=1;p<h.length;++p)if(null!==h[p]&&void 0===h[p].da){z=!0;break}var fa="void"!==h[0].name,A="",G="";for(p=0;p<q-2;++p)A+=(0!==p?", ":"")+"arg"+p,G+=(0!==p?", ":"")+"arg"+p+"Wired";m="return function "+Ma(m)+"("+A+") {\nif (arguments.length !== "+(q-2)+") {\nthrowBindingError('function "+m+" called with ' + arguments.length + ' arguments, expected "+(q-2)+" args!');\n}\n";z&&(m+="var destructors = [];\n");var X=z?"destructors":"null";A="throwBindingError invoker fn runDestructors retType classParam".split(" ");
+n=[R,n,g,Ja,h[0],h[1]];y&&(m+="var thisWired = classParam.toWireType("+X+", this);\n");for(p=0;p<q-2;++p)m+="var arg"+p+"Wired = argType"+p+".toWireType("+X+", arg"+p+"); // "+h[p+2].name+"\n",A.push("argType"+p),n.push(h[p+2]);y&&(G="thisWired"+(0<G.length?", ":"")+G);m+=(fa?"var rv = ":"")+"invoker(fn"+(0<G.length?", ":"")+G+");\n";if(z)m+="runDestructors(destructors);\n";else for(p=y?1:2;p<h.length;++p)q=1===p?"thisWired":"arg"+(p-2)+"Wired",null!==h[p].da&&(m+=q+"_dtor("+q+"); // "+h[p].name+
+"\n",A.push(q+"_dtor"),n.push(h[p].da));fa&&(m+="var ret = retType.fromWireType(rv);\nreturn ret;\n");A.push(m+"}\n");h=Ya(A).apply(null,n);p=b-1;if(!f.hasOwnProperty(l))throw new Pa("Replacing nonexistant public symbol");void 0!==f[l].ca&&void 0!==p?f[l].ca[p]=h:(f[l]=h,f[l].ia=p);return[]})},j:function(a,b,c,d,e){function g(m){return m}b=Q(b);-1===e&&(e=4294967295);var k=Ra(c);if(0===d){var h=32-8*c;g=function(m){return m<<h>>>h}}var l=b.includes("unsigned");P(a,{name:b,fromWireType:g,toWireType:function(m,
+n){if("number"!==typeof n&&"boolean"!==typeof n)throw new TypeError('Cannot convert "'+Wa(n)+'" to '+this.name);if(n<d||n>e)throw new TypeError('Passing a number "'+Wa(n)+'" from JS side to C/C++ side to an argument of type "'+b+'", which is outside the valid range ['+d+", "+e+"]!");return l?n>>>0:n|0},argPackAdvance:8,readValueFromPointer:gb(b,k,0!==d),da:null})},i:function(a,b,c){function d(g){g>>=2;var k=I;return new e(sa,k[g+1],k[g])}var e=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,
+Uint32Array,Float32Array,Float64Array][b];c=Q(c);P(a,{name:c,fromWireType:d,argPackAdvance:8,readValueFromPointer:d},{na:!0})},v:function(a,b){b=Q(b);var c="std::string"===b;P(a,{name:b,fromWireType:function(d){var e=I[d>>2];if(c)for(var g=d+4,k=0;k<=e;++k){var h=d+4+k;if(k==e||0==C[h]){g=B(g,h-g);if(void 0===l)var l=g;else l+=String.fromCharCode(0),l+=g;g=h+1}}else{l=Array(e);for(k=0;k<e;++k)l[k]=String.fromCharCode(C[d+4+k]);l=l.join("")}V(d);return l},toWireType:function(d,e){e instanceof ArrayBuffer&&
+(e=new Uint8Array(e));var g="string"===typeof e;g||e instanceof Uint8Array||e instanceof Uint8ClampedArray||e instanceof Int8Array||R("Cannot pass non-string to std::string");var k=(c&&g?function(){for(var m=0,n=0;n<e.length;++n){var q=e.charCodeAt(n);55296<=q&&57343>=q&&(q=65536+((q&1023)<<10)|e.charCodeAt(++n)&1023);127>=q?++m:m=2047>=q?m+2:65535>=q?m+3:m+4}return m}:function(){return e.length})(),h=nb(4+k+1);I[h>>2]=k;if(c&&g)ka(e,h+4,k+1);else if(g)for(g=0;g<k;++g){var l=e.charCodeAt(g);255<l&&
+(V(h),R("String has UTF-16 code units that do not fit in 8 bits"));C[h+4+g]=l}else for(g=0;g<k;++g)C[h+4+g]=e[g];null!==d&&d.push(V,h);return h},argPackAdvance:8,readValueFromPointer:Ka,da:function(d){V(d)}})},p:function(a,b,c){c=Q(c);if(2===b){var d=ma;var e=na;var g=oa;var k=function(){return D};var h=1}else 4===b&&(d=pa,e=qa,g=ra,k=function(){return I},h=2);P(a,{name:c,fromWireType:function(l){for(var m=I[l>>2],n=k(),q,y=l+4,z=0;z<=m;++z){var p=l+4+z*b;if(z==m||0==n[p>>h])y=d(y,p-y),void 0===q?
+q=y:(q+=String.fromCharCode(0),q+=y),y=p+b}V(l);return q},toWireType:function(l,m){"string"!==typeof m&&R("Cannot pass non-string to C++ string type "+c);var n=g(m),q=nb(4+n+b);I[q>>2]=n>>h;e(m,q+4,n+b);null!==l&&l.push(V,q);return q},argPackAdvance:8,readValueFromPointer:Ka,da:function(l){V(l)}})},Q:function(a,b,c,d,e,g){Ia[a]={name:Q(b),pa:U(c,d),qa:U(e,g),ha:[]}},k:function(a,b,c,d,e,g,k,h,l,m){Ia[a].ha.push({ja:Q(b),ma:c,ka:U(d,e),la:g,xa:k,wa:U(h,l),ya:m})},M:function(a,b){b=Q(b);P(a,{Ca:!0,
+name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},m:Va,y:function(a){if(0===a)return T(ib());var b=hb[a];a=void 0===b?Q(a):b;return T(ib()[a])},N:function(a){4<a&&(S[a].ga+=1)},w:function(a,b,c,d){a||R("Cannot use deleted val. handle = "+a);a=S[a].value;var e=kb[b];if(!e){e="";for(var g=0;g<b;++g)e+=(0!==g?", ":"")+"arg"+g;var k="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";for(g=0;g<b;++g)k+="var argType"+g+" = requireRegisteredType(Module['HEAP32'][(argTypes >>> 2) + "+
+g+'], "parameter '+g+'");\nvar arg'+g+" = argType"+g+".readValueFromPointer(args);\nargs += argType"+g+"['argPackAdvance'];\n";e=(new Function("requireRegisteredType","Module","__emval_register",k+("var obj = new constructor("+e+");\nreturn __emval_register(obj);\n}\n")))(jb,f,T);kb[b]=e}return e(a,c,d)},x:function(a,b){a=jb(a,"_emval_take_value");a=a.readValueFromPointer(b);return T(a)},e:function(){x()},h:function(a,b){W(a,b||1);throw"longjmp";},E:function(a,b,c){C.copyWithin(a,b,b+c)},o:function(a){var b=
+C.length;a>>>=0;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var d=b*(1+.2/c);d=Math.min(d,a+100663296);d=Math.max(a,d);0<d%65536&&(d+=65536-d%65536);a:{try{ha.grow(Math.min(2147483648,d)-sa.byteLength+65535>>>16);va();var e=1;break a}catch(g){}e=void 0}if(e)return!0}return!1},t:function(){return 0},G:function(a,b,c,d){a=Ha.Ba(a);b=Ha.za(a,b,c);F[d>>2]=b;return 0},A:function(){},J:function(a,b,c,d){for(var e=0,g=0;g<c;g++){for(var k=F[b+8*g>>2],h=F[b+(8*g+4)>>2],l=0;l<h;l++){var m=C[k+l],n=Ga[a];
+if(0===m||10===m){for(m=0;n[m]&&!(NaN<=m);)++m;m=ja.decode(n.subarray?n.subarray(0,m):new Uint8Array(n.slice(0,m)));(1===a?da:v)(m);n.length=0}else n.push(m)}e+=h}F[d>>2]=e;return 0},c:function(){return ea},g:function(a){var b=Date.now();F[a>>2]=b/1E3|0;F[a+4>>2]=b%1E3*1E3|0;return 0},l:ob,f:pb,r:qb,q:rb,n:sb,d:tb,C:ub,F:function(){return 28},b:function(a){ea=a}};
+(function(){function a(e){f.asm=e.exports;ha=f.asm.S;va();J=f.asm.$;xa.unshift(f.asm.T);K--;f.monitorRunDependencies&&f.monitorRunDependencies(K);0==K&&(null!==Aa&&(clearInterval(Aa),Aa=null),L&&(e=L,L=null,e()))}function b(e){a(e.instance)}function c(e){return Ca().then(function(g){return WebAssembly.instantiate(g,d)}).then(e,function(g){v("failed to asynchronously prepare wasm: "+g);x(g)})}var d={a:vb};K++;f.monitorRunDependencies&&f.monitorRunDependencies(K);if(f.instantiateWasm)try{return f.instantiateWasm(d,
+a)}catch(e){return v("Module.instantiateWasm callback failed with error: "+e),!1}(function(){return w||"function"!==typeof WebAssembly.instantiateStreaming||M.startsWith("data:application/octet-stream;base64,")||"function"!==typeof fetch?c(b):fetch(M,{credentials:"same-origin"}).then(function(e){return WebAssembly.instantiateStreaming(e,d).then(b,function(g){v("wasm streaming compile failed: "+g);v("falling back to ArrayBuffer instantiation");return c(b)})})})().catch(ba);return{}})();
+f.___wasm_call_ctors=function(){return(f.___wasm_call_ctors=f.asm.T).apply(null,arguments)};var nb=f._malloc=function(){return(nb=f._malloc=f.asm.U).apply(null,arguments)},V=f._free=function(){return(V=f._free=f.asm.V).apply(null,arguments)},eb=f.___getTypeName=function(){return(eb=f.___getTypeName=f.asm.W).apply(null,arguments)};f.___embind_register_native_and_builtin_types=function(){return(f.___embind_register_native_and_builtin_types=f.asm.X).apply(null,arguments)};
+var Y=f.stackSave=function(){return(Y=f.stackSave=f.asm.Y).apply(null,arguments)},Z=f.stackRestore=function(){return(Z=f.stackRestore=f.asm.Z).apply(null,arguments)},W=f._setThrew=function(){return(W=f._setThrew=f.asm._).apply(null,arguments)};f.dynCall_jiiii=function(){return(f.dynCall_jiiii=f.asm.aa).apply(null,arguments)};f.dynCall_jiji=function(){return(f.dynCall_jiji=f.asm.ba).apply(null,arguments)};
+function tb(a,b,c){var d=Y();try{J.get(a)(b,c)}catch(e){Z(d);if(e!==e+0&&"longjmp"!==e)throw e;W(1,0)}}function sb(a,b){var c=Y();try{J.get(a)(b)}catch(d){Z(c);if(d!==d+0&&"longjmp"!==d)throw d;W(1,0)}}function qb(a,b,c,d){var e=Y();try{return J.get(a)(b,c,d)}catch(g){Z(e);if(g!==g+0&&"longjmp"!==g)throw g;W(1,0)}}function pb(a,b,c){var d=Y();try{return J.get(a)(b,c)}catch(e){Z(d);if(e!==e+0&&"longjmp"!==e)throw e;W(1,0)}}
+function ob(a,b){var c=Y();try{return J.get(a)(b)}catch(d){Z(c);if(d!==d+0&&"longjmp"!==d)throw d;W(1,0)}}function rb(a,b,c,d,e,g){var k=Y();try{return J.get(a)(b,c,d,e,g)}catch(h){Z(k);if(h!==h+0&&"longjmp"!==h)throw h;W(1,0)}}function ub(a,b,c,d,e){var g=Y();try{J.get(a)(b,c,d,e)}catch(k){Z(g);if(k!==k+0&&"longjmp"!==k)throw k;W(1,0)}}var wb;L=function xb(){wb||yb();wb||(L=xb)};
+function yb(){function a(){if(!wb&&(wb=!0,f.calledRun=!0,!ia)){Da(xa);aa(f);if(f.onRuntimeInitialized)f.onRuntimeInitialized();if(f.postRun)for("function"==typeof f.postRun&&(f.postRun=[f.postRun]);f.postRun.length;){var b=f.postRun.shift();ya.unshift(b)}Da(ya)}}if(!(0<K)){if(f.preRun)for("function"==typeof f.preRun&&(f.preRun=[f.preRun]);f.preRun.length;)za();Da(wa);0<K||(f.setStatus?(f.setStatus("Running..."),setTimeout(function(){setTimeout(function(){f.setStatus("")},1);a()},1)):a())}}f.run=yb;
+if(f.preInit)for("function"==typeof f.preInit&&(f.preInit=[f.preInit]);0<f.preInit.length;)f.preInit.pop()();yb();
+
+
+  return Module.ready
+}
+);
+})();
+export default Module;

codecs/basis/package.json

@@ -0,0 +1,6 @@
+{
+  "type": "module",
+  "scripts": {
+    "build": "../build-cpp.sh"
+  }
+}

codecs/cpp.Dockerfile

@@ -1,4 +1,4 @@
-FROM emscripten/emsdk:2.0.34
+FROM emscripten/emsdk:2.0.23
 RUN apt-get update && apt-get install -qqy autoconf libtool pkg-config
 ENV CFLAGS "-O3 -flto"
 ENV CXXFLAGS "${CFLAGS} -std=c++17"

codecs/jxl/Makefile

@@ -1,5 +1,5 @@
 CODEC_URL = https://github.com/libjxl/libjxl.git
-CODEC_VERSION = 9f544641ec83f6abd9da598bdd08178ee8a003e0
+CODEC_VERSION = v0.5
 CODEC_DIR = node_modules/jxl
 CODEC_BUILD_ROOT := $(CODEC_DIR)/build
 CODEC_MT_BUILD_DIR := $(CODEC_BUILD_ROOT)/mt
@@ -75,9 +75,6 @@ $(CODEC_MT_SIMD_BUILD_DIR)/Makefile: CXXFLAGS+=-msimd128
 	-DCMAKE_CROSSCOMPILING_EMULATOR=node \
 	-B $(@D) \
 	$(<D)
-	emcc -Wall -O3 -o $(CODEC_DIR)/third_party/skcms/skcms.cc.o -I$(CODEC_DIR)/third_party/skcms -c $(CODEC_DIR)/third_party/skcms/skcms.cc
-	llvm-ar rc $(CODEC_BUILD_DIR)/third_party/libskcms.a $(CODEC_DIR)/third_party/skcms/skcms.cc.o
-	rm $(CODEC_DIR)/third_party/skcms/skcms.cc.o
 
 $(CODEC_DIR)/CMakeLists.txt:
 	$(RM) -r $(@D)

codecs/jxl/enc/jxl_enc.cpp

@@ -4,21 +4,21 @@
 #include "lib/jxl/base/thread_pool_internal.h"
 #include "lib/jxl/enc_external_image.h"
 #include "lib/jxl/enc_file.h"
-#include "lib/jxl/enc_color_management.h"
 
 using namespace emscripten;
 
 thread_local const val Uint8Array = val::global("Uint8Array");
 
 struct JXLOptions {
-  int effort;
+  // 1 = slowest
+  // 7 = fastest
+  int speed;
   float quality;
   bool progressive;
   int epf;
+  int nearLossless;
   bool lossyPalette;
   size_t decodingSpeedTier;
-  float photonNoiseIso;
-  bool lossyModular;
 };
 
 val encode(std::string image, int width, int height, JXLOptions options) {
@@ -33,14 +33,11 @@ val encode(std::string image, int width, int height, JXLOptions options) {
   pool_ptr = &pool;
 #endif
 
-  size_t st = 10 - options.effort;
-  cparams.speed_tier = jxl::SpeedTier(st);
-
   cparams.epf = options.epf;
+  cparams.speed_tier = static_cast<jxl::SpeedTier>(options.speed);
   cparams.decoding_speed_tier = options.decodingSpeedTier;
-  cparams.photon_noise_iso = options.photonNoiseIso;
 
-  if (options.lossyPalette) {
+  if (options.lossyPalette || options.nearLossless) {
     cparams.lossy_palette = true;
     cparams.palette_colors = 0;
     cparams.options.predictor = jxl::Predictor::Zero;
@@ -52,16 +49,11 @@ val encode(std::string image, int width, int height, JXLOptions options) {
   float quality = options.quality;
 
   // Quality settings roughly match libjpeg qualities.
-  if (options.lossyModular || quality == 100) {
+  if (quality < 7 || quality == 100) {
     cparams.modular_mode = true;
     // Internal modular quality to roughly match VarDCT size.
-    if (quality < 7) {
     cparams.quality_pair.first = cparams.quality_pair.second =
         std::min(35 + (quality - 7) * 3.0f, 100.0f);
-    } else {
-      cparams.quality_pair.first = cparams.quality_pair.second =
-          std::min(35 + (quality - 7) * 65.f / 93.f, 100.0f);
-    }
   } else {
     cparams.modular_mode = false;
     if (quality >= 30) {
@@ -98,14 +90,14 @@ val encode(std::string image, int width, int height, JXLOptions options) {
       jxl::Span<const uint8_t>(reinterpret_cast<const uint8_t*>(image.data()), image.size()), width,
       height, jxl::ColorEncoding::SRGB(/*is_gray=*/false), /*has_alpha=*/true,
       /*alpha_is_premultiplied=*/false, /*bits_per_sample=*/8, /*endiannes=*/JXL_LITTLE_ENDIAN,
-      /*flipped_y=*/false, pool_ptr, main, /*(only true if bits_per_sample==32) float_in=*/false);
+      /*flipped_y=*/false, pool_ptr, main);
 
   if (!result) {
     return val::null();
   }
 
   auto js_result = val::null();
-  if (EncodeFile(cparams, &io, &passes_enc_state, &bytes, jxl::GetJxlCms(), /*aux=*/nullptr, pool_ptr)) {
+  if (EncodeFile(cparams, &io, &passes_enc_state, &bytes, /*aux=*/nullptr, pool_ptr)) {
     js_result = Uint8Array.new_(typed_memory_view(bytes.size(), bytes.data()));
   }
 
@@ -114,13 +106,12 @@ val encode(std::string image, int width, int height, JXLOptions options) {
 
 EMSCRIPTEN_BINDINGS(my_module) {
   value_object<JXLOptions>("JXLOptions")
-      .field("effort", &JXLOptions::effort)
+      .field("speed", &JXLOptions::speed)
       .field("quality", &JXLOptions::quality)
       .field("progressive", &JXLOptions::progressive)
+      .field("nearLossless", &JXLOptions::nearLossless)
       .field("lossyPalette", &JXLOptions::lossyPalette)
       .field("decodingSpeedTier", &JXLOptions::decodingSpeedTier)
-      .field("photonNoiseIso", &JXLOptions::photonNoiseIso)
-      .field("lossyModular", &JXLOptions::lossyModular)
       .field("epf", &JXLOptions::epf);
 
   function("encode", &encode);

codecs/jxl/enc/jxl_enc.d.ts

@@ -1,12 +1,11 @@
 export interface EncodeOptions {
-  effort: number;
+  speed: number;
   quality: number;
   progressive: boolean;
   epf: number;
+  nearLossless: number;
   lossyPalette: boolean;
   decodingSpeedTier: number;
-  photonNoiseIso: number;
-  lossyModular: boolean;
 }
 
 export interface JXLModule extends EmscriptenWasm.Module {

generic-tsconfig.json

@@ -17,8 +17,7 @@
       "static-build/*": ["src/static-build/*"],
       "client/*": ["src/client/*"],
       "shared/*": ["src/shared/*"],
-      "features/*": ["src/features/*"],
+      "features/*": ["src/features/*"]
-      "worker-shared/*": ["src/worker-shared/*"]
     }
   }
 }

lib/data-url-plugin.js

@@ -14,40 +14,28 @@ import { promises as fs } from 'fs';
 
 import { lookup as lookupMime } from 'mime-types';
 
-const prefix = /^data-url(-text)?:/;
+const prefix = 'data-url:';
 
 export default function dataURLPlugin() {
   return {
     name: 'data-url-plugin',
     async resolveId(id, importer) {
-      const match = prefix.exec(id);
+      if (!id.startsWith(prefix)) return;
-      if (!match) return;
       return (
-        match[0] + (await this.resolve(id.slice(match[0].length), importer)).id
+        prefix + (await this.resolve(id.slice(prefix.length), importer)).id
       );
     },
     async load(id) {
-      const match = prefix.exec(id);
+      if (!id.startsWith(prefix)) return;
-      if (!match) return;
+      const realId = id.slice(prefix.length);
-
-      const isText = !!match[1];
-      const realId = id.slice(match[0].length);
       this.addWatchFile(realId);
 
       const source = await fs.readFile(realId);
       const type = lookupMime(realId) || 'text/plain';
 
-      if (isText) {
+      return `export default 'data:${type};base64,${source.toString(
-        const encodedBody = encodeURIComponent(source.toString('utf8'));
+        'base64',
-
+      )}';`;
-        return `export default ${JSON.stringify(
-          `data:${type};charset=utf-8,${encodedBody}`,
-        )};`;
-      }
-
-      return `export default ${JSON.stringify(
-        `data:${type};base64,${source.toString('base64')}`,
-      )};`;
     },
   };
 }

lib/omt.ejs

@@ -28,17 +28,10 @@ if (!self.<%- amdFunctionName %>) {
       <% } else { %>
         new Promise(resolve => {
           if ("document" in self) {
-            const link = document.createElement("link");
-            link.rel = "preload";
-            link.as = "script";
-            link.href = uri;
-            link.onload = () => {
             const script = document.createElement("script");
             script.src = uri;
             script.onload = resolve;
             document.head.appendChild(script);
-            };
-            document.head.appendChild(link);
           } else {
             self.nextDefineUri = uri;
             importScripts(uri);

libsquoosh/.gitignore

@@ -0,0 +1,3 @@
+node_modules
+build
+.DS_Store

libsquoosh/.npmignore

@@ -0,0 +1 @@
+node_modules

libsquoosh/README.md

@@ -0,0 +1,171 @@
+# libSquoosh
+
+libSquoosh is an _experimental_ way to run all the codecs you know from the [Squoosh] web app directly inside your own JavaScript program. libSquoosh uses a worker pool to parallelize processing images. This way you can apply the same codec to many images at once.
+
+libSquoosh is currently not the fastest image compression tool in town and doesn’t aim to be. It is, however, fast enough to compress many images sufficiently quick at once.
+
+## Installation
+
+libSquoosh can be installed to your local project with the following command:
+
+```
+$ npm install @squoosh/lib
+```
+
+You can start using the libSquoosh by adding these lines to the top of your JS program:
+
+```js
+import { ImagePool } from '@squoosh/lib';
+const imagePool = new ImagePool();
+```
+
+This will create an image pool with an underlying processing pipeline that you can use to ingest and encode images. The ImagePool constructor takes one argument that defines how many parallel operations it is allowed to run at any given time. By default, this number is set to the amount of CPU cores available in the system it is running on.
+
+## Ingesting images
+
+You can ingest a new image like so:
+
+```js
+const imagePath = 'path/to/image.png';
+const image = imagePool.ingestImage(imagePath);
+```
+
+The `ingestImage` function can take anything the node [`readFile`][readfile] function can take, including a buffer and `FileHandle`.
+
+The returned `image` object is a representation of the original image, that you can now preprocess, encode, and extract information about.
+
+## Preprocessing and encoding images
+
+When an image has been ingested, you can start preprocessing it and encoding it to other formats. This example will resize the image and then encode it to a `.jpg` and `.jxl` image:
+
+```js
+await image.decoded; //Wait until the image is decoded before running preprocessors. 
+
+const preprocessOptions = {
+  //When both width and height are specified, the image resized to specified size.
+  resize: {
+    enabled: true,
+    width: 100,
+    height: 50,
+  }
+  /*
+  //When either width or height is specified, the image resized to specified size keeping aspect ratio.
+  resize: {
+    enabled: true,
+    width: 100,
+  }
+  */
+}
+await image.preprocess(preprocessOptions);
+
+const encodeOptions = {
+  mozjpeg: {}, //an empty object means 'use default settings'
+  jxl: {
+    quality: 90,
+  },
+}
+await image.encode(encodeOptions);
+
+```
+
+The default values for each option can be found in the [`codecs.ts`][codecs.ts] file under `defaultEncoderOptions`. Every unspecified value will use the default value specified there. _Better documentation is needed here._
+
+You can run your own code inbetween the different steps, if, for example, you want to change how much the image should be resized based on its original height. (See [Extracting image information](#extracting-image-information) to learn how to get the image dimensions).
+
+## Closing the ImagePool
+
+When you have encoded everything you need, it is recommended to close the processing pipeline in the ImagePool. This will not delete the images you have already encoded, but it will prevent you from ingesting and encoding new images.
+
+Close the ImagePool pipeline with this line:
+
+```js
+await imagePool.close();
+```
+
+## Writing encoded images to the file system
+
+When you have encoded an image, you normally want to write it to a file.
+
+This example takes an image that has been encoded as a `jpg` and writes it to a file:
+
+```js
+const rawEncodedImage = (await image.encodedWith.mozjpeg).binary;
+
+fs.writeFile('/path/to/new/image.jpg', rawEncodedImage);
+```
+
+This example iterates through all encoded versions of the image and writes them to a specific path:
+
+```js
+const newImagePath = '/path/to/image.'; //extension is added automatically
+
+for (const encodedImage of Object.values(image.encodedWith)) {
+  fs.writeFile(
+    newImagePath + (await encodedImage).extension,
+    (await encodedImage).binary,
+  );
+}
+```
+
+## Extracting image information
+
+Information about a decoded image is available at `Image.decoded`. It looks something like this:
+
+```js
+console.log(await image.decoded);
+// Returns:
+{
+ bitmap: {
+    data: Uint8ClampedArray(47736584) [
+      225, 228, 237, 255, 225, 228, 237, 255, 225, 228, 237, 255,
+      225, 228, 237, 255, 225, 228, 237, 255, 225, 228, 237, 255,
+      225, 228, 237, 255,
+      ... //the entire raw image
+    ],
+    width: 4606,  //pixels
+    height: 2591  //pixels
+  },
+  size: 2467795  //bytes
+}
+```
+
+Information about an encoded image can be found at `Image.encodedWith[encoderName]`. It looks something like this:
+
+```js
+console.log(await image.encodedWith.jxl);
+// Returns:
+{
+  optionsUsed: {
+    quality: 75,
+    baseline: false,
+    arithmetic: false,
+    progressive: true,
+    ... //all the possible options for this encoder
+  },
+  binary: Uint8Array(1266975) [
+      1,   0,   0,   1,   0,  1,  0,  0, 255, 219,  0, 132,
+    113, 119, 156, 156, 209,  1,  8,  8,   8,   8,  9,   8,
+      9,  10,  10,   9,
+    ... //the entire raw encoded image
+  ],
+  extension: 'jxl',
+  size: 1266975  //bytes
+}
+```
+
+## Auto optimizer
+
+libSquoosh has an _experimental_ auto optimizer that compresses an image as much as possible, trying to hit a specific [Butteraugli] target value. The higher the Butteraugli target value, the more artifacts can be introduced.
+
+You can make use of the auto optimizer by using “auto” as the config object.
+
+```js
+const encodeOptions: {
+  mozjpeg: 'auto',
+}
+```
+
+[squoosh]: https://squoosh.app
+[codecs.ts]: https://github.com/GoogleChromeLabs/squoosh/blob/dev/libsquoosh/src/codecs.ts
+[butteraugli]: https://github.com/google/butteraugli
+[readfile]: https://nodejs.org/api/fs.html#fs_fspromises_readfile_path_options

libsquoosh/lib/asset-plugin.js

@@ -0,0 +1,75 @@
+/**
+ * Copyright 2020 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { promises as fs } from 'fs';
+import { basename } from 'path';
+
+const defaultOpts = {
+  prefix: 'asset-url',
+};
+
+export default function assetPlugin(opts) {
+  opts = { ...defaultOpts, ...opts };
+
+  /** @type {Map<string, Buffer>} */
+  let assetIdToSourceBuffer;
+
+  const prefix = opts.prefix + ':';
+  return {
+    name: 'asset-plugin',
+    buildStart() {
+      assetIdToSourceBuffer = new Map();
+    },
+    augmentChunkHash(info) {
+      // Get the sources for all assets imported by this chunk.
+      const buffers = Object.keys(info.modules)
+        .map((moduleId) => assetIdToSourceBuffer.get(moduleId))
+        .filter(Boolean);
+
+      if (buffers.length === 0) return;
+
+      for (const moduleId of Object.keys(info.modules)) {
+        const buffer = assetIdToSourceBuffer.get(moduleId);
+        if (buffer) buffers.push(buffer);
+      }
+
+      const combinedBuffer =
+        buffers.length === 1 ? buffers[0] : Buffer.concat(buffers);
+
+      return combinedBuffer;
+    },
+    async resolveId(id, importer) {
+      if (!id.startsWith(prefix)) return;
+      const realId = id.slice(prefix.length);
+      const resolveResult = await this.resolve(realId, importer);
+
+      if (!resolveResult) {
+        throw Error(`Cannot find ${realId}`);
+      }
+      // Add an additional .js to the end so it ends up with .js at the end in the _virtual folder.
+      return prefix + resolveResult.id + '.js';
+    },
+    async load(id) {
+      if (!id.startsWith(prefix)) return;
+      const realId = id.slice(prefix.length, -'.js'.length);
+      const source = await fs.readFile(realId);
+      assetIdToSourceBuffer.set(id, source);
+      this.addWatchFile(realId);
+
+      return `export default import.meta.ROLLUP_FILE_URL_${this.emitFile({
+        type: 'asset',
+        source,
+        name: basename(realId),
+      })}`;
+    },
+  };
+}

libsquoosh/lib/autojson-plugin.js

@@ -0,0 +1,12 @@
+import { promises as fsp } from 'fs';
+
+export default function autojsonPlugin() {
+  return {
+    name: 'autojson-plugin',
+    async load(id) {
+      if (id.endsWith('.json') && !id.startsWith('json:')) {
+        return 'export default ' + (await fsp.readFile(id, 'utf8'));
+      }
+    },
+  };
+}

libsquoosh/lib/chunk-plugin.js

@@ -0,0 +1,49 @@
+/**
+ * Copyright 2020 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { promises as fs } from 'fs';
+import { basename } from 'path';
+
+const defaultOpts = {
+  prefix: 'chunk-url',
+};
+
+export default function chunkPlugin(opts) {
+  opts = { ...defaultOpts, ...opts };
+
+  const prefix = opts.prefix + ':';
+  return {
+    name: 'chunk-plugin',
+    async resolveId(id, importer) {
+      if (!id.startsWith(prefix)) return;
+      const realId = id.slice(prefix.length);
+      const resolveResult = await this.resolve(realId, importer);
+
+      if (!resolveResult) {
+        throw Error(`Cannot find ${realId}`);
+      }
+      return prefix + resolveResult.id;
+    },
+    async load(id) {
+      if (!id.startsWith(prefix)) return;
+      const realId = id.slice(prefix.length);
+      const source = await fs.readFile(realId);
+      this.addWatchFile(realId);
+
+      return `export default import.meta.ROLLUP_FILE_URL_${this.emitFile({
+        type: 'chunk',
+        source,
+        id: realId,
+      })}`;
+    },
+  };
+}

libsquoosh/lib/json-plugin.js

@@ -0,0 +1,38 @@
+import { promises as fsp } from 'fs';
+
+const prefix = 'json:';
+
+const reservedKeys = ['public'];
+
+export default function jsonPlugin() {
+  return {
+    name: 'json-plugin',
+    async resolveId(id, importer) {
+      if (!id.startsWith(prefix)) return;
+      const realId = id.slice(prefix.length);
+      const resolveResult = await this.resolve(realId, importer);
+
+      if (!resolveResult) {
+        throw Error(`Cannot find ${realId}`);
+      }
+      // Add an additional .js to the end so it ends up with .js at the end in the _virtual folder.
+      return prefix + resolveResult.id;
+    },
+    async load(id) {
+      if (!id.startsWith(prefix)) return;
+      const realId = id.slice(prefix.length);
+      const source = await fsp.readFile(realId, 'utf8');
+
+      let code = '';
+      for (const [key, value] of Object.entries(JSON.parse(source))) {
+        if (reservedKeys.includes(key)) {
+          continue;
+        }
+        code += `
+        export const ${key} = ${JSON.stringify(value)};
+      `;
+      }
+      return code;
+    },
+  };
+}

libsquoosh/lib/simple-ts.js

@@ -0,0 +1,133 @@
+/**
+ * Copyright 2020 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { spawn } from 'child_process';
+import { relative, join } from 'path';
+import { promises as fsp } from 'fs';
+import { promisify } from 'util';
+
+import * as ts from 'typescript';
+import glob from 'glob';
+import { sync as whichSync } from 'which';
+
+const globP = promisify(glob);
+
+const tscPath = whichSync('tsc');
+
+const extRe = /\.tsx?$/;
+
+function loadConfig(mainPath) {
+  const fileName = ts.findConfigFile(mainPath, ts.sys.fileExists);
+  if (!fileName) throw Error('tsconfig not found');
+  const text = ts.sys.readFile(fileName);
+  const loadedConfig = ts.parseConfigFileTextToJson(fileName, text).config;
+  const parsedTsConfig = ts.parseJsonConfigFileContent(
+    loadedConfig,
+    ts.sys,
+    process.cwd(),
+    undefined,
+    fileName,
+  );
+  return parsedTsConfig;
+}
+
+export default function simpleTS(mainPath, { noBuild, watch } = {}) {
+  const config = loadConfig(mainPath);
+  const args = ['-b', mainPath];
+
+  let tsBuildDone;
+
+  async function watchBuiltFiles(rollupContext) {
+    const matches = await globP(config.options.outDir + '/**/*.js');
+    for (const match of matches) rollupContext.addWatchFile(match);
+  }
+
+  async function tsBuild(rollupContext) {
+    if (tsBuildDone) {
+      // Watch lists are cleared on each build, so we need to rewatch all the JS files.
+      await watchBuiltFiles(rollupContext);
+      return tsBuildDone;
+    }
+    if (noBuild) {
+      return (tsBuildDone = Promise.resolve());
+    }
+    tsBuildDone = Promise.resolve().then(async () => {
+      await new Promise((resolve) => {
+        const proc = spawn(tscPath, args, {
+          stdio: 'inherit',
+        });
+
+        proc.on('exit', (code) => {
+          if (code !== 0) {
+            throw Error('TypeScript build failed');
+          }
+          resolve();
+        });
+      });
+
+      await watchBuiltFiles(rollupContext);
+
+      if (watch) {
+        tsBuildDone.then(() => {
+          spawn(tscPath, [...args, '--watch', '--preserveWatchOutput'], {
+            stdio: 'inherit',
+          });
+        });
+      }
+    });
+
+    return tsBuildDone;
+  }
+
+  return {
+    name: 'simple-ts',
+    resolveId(id, importer) {
+      // If there isn't an importer, it's an entry point, so we don't need to resolve it relative
+      // to something.
+      if (!importer) return null;
+
+      const tsResolve = ts.resolveModuleName(
+        id,
+        importer,
+        config.options,
+        ts.sys,
+      );
+
+      if (
+        // It didn't find anything
+        !tsResolve.resolvedModule ||
+        // Or if it's linking to a definition file, it's something in node_modules,
+        // or something local like css.d.ts
+        tsResolve.resolvedModule.extension === '.d.ts'
+      ) {
+        return null;
+      }
+      return tsResolve.resolvedModule.resolvedFileName;
+    },
+    async load(id) {
+      if (!extRe.test(id)) return null;
+
+      // TypeScript building is deferred until the first TS file load.
+      // This allows prerequisites to happen first,
+      // such as css.d.ts generation in css-plugin.
+      await tsBuild(this);
+
+      // Look for the JS equivalent in the tmp folder
+      const newId = join(
+        config.options.outDir,
+        relative(config.options.rootDir, id),
+      ).replace(extRe, '.js');
+
+      return fsp.readFile(newId, { encoding: 'utf8' });
+    },
+  };
+}

libsquoosh/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@squoosh/lib",
+  "version": "0.4.0",
+  "description": "A Node library for Squoosh",
+  "public": true,
+  "main": "./build/index.js",
+  "files": [
+    "/build/*"
+  ],
+  "scripts": {
+    "build": "rollup -c"
+  },
+  "keywords": [],
+  "author": "Google Chrome Developers <chromium-dev@google.com>",
+  "homepage": "https://github.com/GoogleChromeLabs/squoosh",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/GoogleChromeLabs/squoosh.git"
+  },
+  "license": "Apache-2.0",
+  "engines": {
+    "node": " ^12.5.0 || ^14.0.0 || ^16.0.0 "
+  },
+  "dependencies": {
+    "wasm-feature-detect": "^1.2.11",
+    "web-streams-polyfill": "^3.0.3"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.14.0",
+    "@babel/preset-env": "^7.14.0",
+    "@rollup/plugin-babel": "^5.3.0",
+    "@rollup/plugin-commonjs": "^18.0.0",
+    "@rollup/plugin-node-resolve": "^11.2.1",
+    "@types/node": "^15.6.1",
+    "rollup": "^2.46.0",
+    "rollup-plugin-terser": "^7.0.2",
+    "typescript": "^4.1.3",
+    "which": "^2.0.2"
+  }
+}

libsquoosh/rollup.config.js

@@ -0,0 +1,46 @@
+import resolve from '@rollup/plugin-node-resolve';
+import cjs from '@rollup/plugin-commonjs';
+import simpleTS from './lib/simple-ts';
+import asset from './lib/asset-plugin.js';
+import chunk from './lib/chunk-plugin.js';
+import json from './lib/json-plugin.js';
+import autojson from './lib/autojson-plugin.js';
+import { getBabelOutputPlugin } from '@rollup/plugin-babel';
+import { builtinModules } from 'module';
+
+/** @type {import('rollup').RollupOptions} */
+export default {
+  input: 'src/index.ts',
+  output: {
+    dir: 'build',
+    format: 'cjs',
+    assetFileNames: '[name]-[hash][extname]',
+  },
+  plugins: [
+    resolve(),
+    cjs(),
+    chunk(),
+    asset(),
+    autojson(),
+    json(),
+    simpleTS('.'),
+    getBabelOutputPlugin({
+      babelrc: false,
+      configFile: false,
+      minified: process.env.DEBUG != '',
+      comments: true,
+      presets: [
+        [
+          '@babel/preset-env',
+          {
+            targets: {
+              node: 12,
+            },
+            loose: true,
+          },
+        ],
+      ],
+    }),
+  ],
+  external: [...builtinModules, 'web-streams-polyfill'],
+};

libsquoosh/src/WebAssembly.d.ts

@@ -0,0 +1,132 @@
+/**
+ * WebAssembly definitions are not available in `@types/node` yet,
+ * so these are copied from `lib.dom.d.ts`
+ */
+declare namespace WebAssembly {
+  interface CompileError {}
+
+  var CompileError: {
+    prototype: CompileError;
+    new (): CompileError;
+  };
+
+  interface Global {
+    value: any;
+    valueOf(): any;
+  }
+
+  var Global: {
+    prototype: Global;
+    new (descriptor: GlobalDescriptor, v?: any): Global;
+  };
+
+  interface Instance {
+    readonly exports: Exports;
+  }
+
+  var Instance: {
+    prototype: Instance;
+    new (module: Module, importObject?: Imports): Instance;
+  };
+
+  interface LinkError {}
+
+  var LinkError: {
+    prototype: LinkError;
+    new (): LinkError;
+  };
+
+  interface Memory {
+    readonly buffer: ArrayBuffer;
+    grow(delta: number): number;
+  }
+
+  var Memory: {
+    prototype: Memory;
+    new (descriptor: MemoryDescriptor): Memory;
+  };
+
+  interface Module {}
+
+  var Module: {
+    prototype: Module;
+    new (bytes: BufferSource): Module;
+    customSections(moduleObject: Module, sectionName: string): ArrayBuffer[];
+    exports(moduleObject: Module): ModuleExportDescriptor[];
+    imports(moduleObject: Module): ModuleImportDescriptor[];
+  };
+
+  interface RuntimeError {}
+
+  var RuntimeError: {
+    prototype: RuntimeError;
+    new (): RuntimeError;
+  };
+
+  interface Table {
+    readonly length: number;
+    get(index: number): Function | null;
+    grow(delta: number): number;
+    set(index: number, value: Function | null): void;
+  }
+
+  var Table: {
+    prototype: Table;
+    new (descriptor: TableDescriptor): Table;
+  };
+
+  interface GlobalDescriptor {
+    mutable?: boolean;
+    value: ValueType;
+  }
+
+  interface MemoryDescriptor {
+    initial: number;
+    maximum?: number;
+  }
+
+  interface ModuleExportDescriptor {
+    kind: ImportExportKind;
+    name: string;
+  }
+
+  interface ModuleImportDescriptor {
+    kind: ImportExportKind;
+    module: string;
+    name: string;
+  }
+
+  interface TableDescriptor {
+    element: TableKind;
+    initial: number;
+    maximum?: number;
+  }
+
+  interface WebAssemblyInstantiatedSource {
+    instance: Instance;
+    module: Module;
+  }
+
+  type ImportExportKind = 'function' | 'global' | 'memory' | 'table';
+  type TableKind = 'anyfunc';
+  type ValueType = 'f32' | 'f64' | 'i32' | 'i64';
+  type ExportValue = Function | Global | Memory | Table;
+  type Exports = Record<string, ExportValue>;
+  type ImportValue = ExportValue | number;
+  type ModuleImports = Record<string, ImportValue>;
+  type Imports = Record<string, ModuleImports>;
+  function compile(bytes: BufferSource): Promise<Module>;
+  // `compileStreaming` does not exist in NodeJS
+  // function compileStreaming(source: Response | Promise<Response>): Promise<Module>;
+  function instantiate(
+    bytes: BufferSource,
+    importObject?: Imports,
+  ): Promise<WebAssemblyInstantiatedSource>;
+  function instantiate(
+    moduleObject: Module,
+    importObject?: Imports,
+  ): Promise<Instance>;
+  // `instantiateStreaming` does not exist in NodeJS
+  // function instantiateStreaming(response: Response | PromiseLike<Response>, importObject?: Imports): Promise<WebAssemblyInstantiatedSource>;
+  function validate(bytes: BufferSource): boolean;
+}

libsquoosh/src/auto-optimizer.ts

@@ -0,0 +1,115 @@
+import { instantiateEmscriptenWasm } from './emscripten-utils.js';
+
+import visdif from '../../codecs/visdif/visdif.js';
+import visdifWasm from 'asset-url:../../codecs/visdif/visdif.wasm';
+import type ImageData from './image_data';
+
+interface VisDiff {
+  distance: (data: Uint8ClampedArray) => number;
+  delete: () => void;
+}
+
+interface VisdiffConstructor {
+  new (data: Uint8ClampedArray, width: number, height: number): VisDiff;
+}
+
+interface VisDiffModule extends EmscriptenWasm.Module {
+  VisDiff: VisdiffConstructor;
+}
+
+type VisDiffModuleFactory = EmscriptenWasm.ModuleFactory<VisDiffModule>;
+
+interface BinarySearchParams {
+  min?: number;
+  max?: number;
+  epsilon?: number;
+  maxRounds?: number;
+}
+
+interface AutoOptimizeParams extends BinarySearchParams {
+  butteraugliDistanceGoal?: number;
+}
+
+interface AutoOptimizeResult {
+  bitmap: ImageData;
+  binary: Uint8Array;
+  quality: number;
+}
+
+// `measure` is a (async) function that takes exactly one numeric parameter and
+// returns a value. The function is assumed to be monotonic (an increase in `parameter`
+// will result in an increase in the return value. The function uses binary search
+// to find `parameter` such that `measure` returns `measureGoal`, within an error
+// of `epsilon`. It will use at most `maxRounds` attempts.
+export async function binarySearch(
+  measureGoal: number,
+  measure: (val: number) => Promise<number>,
+  { min = 0, max = 100, epsilon = 0.1, maxRounds = 6 }: BinarySearchParams = {},
+) {
+  let parameter = (max - min) / 2 + min;
+  let delta = (max - min) / 4;
+  let value;
+  let round = 1;
+  while (true) {
+    value = await measure(parameter);
+    if (Math.abs(value - measureGoal) < epsilon || round >= maxRounds) {
+      return { parameter, round, value };
+    }
+    if (value > measureGoal) {
+      parameter -= delta;
+    } else if (value < measureGoal) {
+      parameter += delta;
+    }
+    delta /= 2;
+    round++;
+  }
+}
+
+export async function autoOptimize(
+  bitmapIn: ImageData,
+  encode: (
+    bitmap: ImageData,
+    quality: number,
+  ) => Promise<Uint8Array> | Uint8Array,
+  decode: (binary: Uint8Array) => Promise<ImageData> | ImageData,
+  {
+    butteraugliDistanceGoal = 1.4,
+    ...binarySearchParams
+  }: AutoOptimizeParams = {},
+): Promise<AutoOptimizeResult> {
+  const { VisDiff } = await instantiateEmscriptenWasm(
+    visdif as VisDiffModuleFactory,
+    visdifWasm,
+  );
+
+  const comparator = new VisDiff(
+    bitmapIn.data,
+    bitmapIn.width,
+    bitmapIn.height,
+  );
+
+  // We're able to do non null assertion because
+  // we know that binarySearch will set these values
+  let bitmapOut!: ImageData;
+  let binaryOut!: Uint8Array;
+
+  // Increasing quality means _decrease_ in Butteraugli distance.
+  // `binarySearch` assumes that increasing `parameter` will
+  // increase the metric value. So multipliy Butteraugli values by -1.
+  const { parameter } = await binarySearch(
+    -1 * butteraugliDistanceGoal,
+    async (quality) => {
+      binaryOut = await encode(bitmapIn, quality);
+      bitmapOut = await decode(binaryOut);
+      return -1 * comparator.distance(bitmapOut.data);
+    },
+    binarySearchParams,
+  );
+  comparator.delete();
+
+  return {
+    bitmap: bitmapOut,
+    binary: binaryOut,
+    quality: parameter,
+  };
+}

libsquoosh/src/codecs.ts

@@ -0,0 +1,482 @@
+import { promises as fsp } from 'fs';
+import { instantiateEmscriptenWasm, pathify } from './emscripten-utils.js';
+import { threads } from 'wasm-feature-detect';
+import { cpus } from 'os';
+
+// We use `navigator.hardwareConcurrency` for Emscripten’s pthread pool size.
+// This is the only workaround I can get working without crying.
+(globalThis as any).navigator = {
+  hardwareConcurrency: cpus().length,
+};
+
+interface DecodeModule extends EmscriptenWasm.Module {
+  decode: (data: Uint8Array) => ImageData;
+}
+
+type DecodeModuleFactory = EmscriptenWasm.ModuleFactory<DecodeModule>;
+
+interface RotateModuleInstance {
+  exports: {
+    memory: WebAssembly.Memory;
+    rotate(width: number, height: number, rotate: number): void;
+  };
+}
+
+interface ResizeWithAspectParams {
+  input_width: number;
+  input_height: number;
+  target_width: number;
+  target_height: number;
+}
+
+interface ResizeInstantiateOptions {
+  width: number;
+  height: number;
+  method: string;
+  premultiply: boolean;
+  linearRGB: boolean;
+}
+
+declare global {
+  // Needed for being able to use ImageData as type in codec types
+  type ImageData = import('./image_data.js').default;
+  // Needed for being able to assign to `globalThis.ImageData`
+  var ImageData: ImageData['constructor'];
+}
+
+import type { QuantizerModule } from '../../codecs/imagequant/imagequant.js';
+
+// MozJPEG
+import type { MozJPEGModule as MozJPEGEncodeModule } from '../../codecs/mozjpeg/enc/mozjpeg_enc';
+import mozEnc from '../../codecs/mozjpeg/enc/mozjpeg_node_enc.js';
+import mozEncWasm from 'asset-url:../../codecs/mozjpeg/enc/mozjpeg_node_enc.wasm';
+import mozDec from '../../codecs/mozjpeg/dec/mozjpeg_node_dec.js';
+import mozDecWasm from 'asset-url:../../codecs/mozjpeg/dec/mozjpeg_node_dec.wasm';
+
+// WebP
+import type { WebPModule as WebPEncodeModule } from '../../codecs/webp/enc/webp_enc';
+import webpEnc from '../../codecs/webp/enc/webp_node_enc.js';
+import webpEncWasm from 'asset-url:../../codecs/webp/enc/webp_node_enc.wasm';
+import webpDec from '../../codecs/webp/dec/webp_node_dec.js';
+import webpDecWasm from 'asset-url:../../codecs/webp/dec/webp_node_dec.wasm';
+
+// AVIF
+import type { AVIFModule as AVIFEncodeModule } from '../../codecs/avif/enc/avif_enc';
+import avifEnc from '../../codecs/avif/enc/avif_node_enc.js';
+import avifEncWasm from 'asset-url:../../codecs/avif/enc/avif_node_enc.wasm';
+import avifEncMt from '../../codecs/avif/enc/avif_node_enc_mt.js';
+import avifEncMtWorker from 'chunk-url:../../codecs/avif/enc/avif_node_enc_mt.worker.js';
+import avifEncMtWasm from 'asset-url:../../codecs/avif/enc/avif_node_enc_mt.wasm';
+import avifDec from '../../codecs/avif/dec/avif_node_dec.js';
+import avifDecWasm from 'asset-url:../../codecs/avif/dec/avif_node_dec.wasm';
+
+// JXL
+import type { JXLModule as JXLEncodeModule } from '../../codecs/jxl/enc/jxl_enc';
+import jxlEnc from '../../codecs/jxl/enc/jxl_node_enc.js';
+import jxlEncWasm from 'asset-url:../../codecs/jxl/enc/jxl_node_enc.wasm';
+import jxlDec from '../../codecs/jxl/dec/jxl_node_dec.js';
+import jxlDecWasm from 'asset-url:../../codecs/jxl/dec/jxl_node_dec.wasm';
+
+// WP2
+import type { WP2Module as WP2EncodeModule } from '../../codecs/wp2/enc/wp2_enc';
+import wp2Enc from '../../codecs/wp2/enc/wp2_node_enc.js';
+import wp2EncWasm from 'asset-url:../../codecs/wp2/enc/wp2_node_enc.wasm';
+import wp2Dec from '../../codecs/wp2/dec/wp2_node_dec.js';
+import wp2DecWasm from 'asset-url:../../codecs/wp2/dec/wp2_node_dec.wasm';
+
+// PNG
+import * as pngEncDec from '../../codecs/png/pkg/squoosh_png.js';
+import pngEncDecWasm from 'asset-url:../../codecs/png/pkg/squoosh_png_bg.wasm';
+const pngEncDecPromise = pngEncDec.default(
+  fsp.readFile(pathify(pngEncDecWasm)),
+);
+
+// OxiPNG
+import * as oxipng from '../../codecs/oxipng/pkg/squoosh_oxipng.js';
+import oxipngWasm from 'asset-url:../../codecs/oxipng/pkg/squoosh_oxipng_bg.wasm';
+const oxipngPromise = oxipng.default(fsp.readFile(pathify(oxipngWasm)));
+
+// Resize
+import * as resize from '../../codecs/resize/pkg/squoosh_resize.js';
+import resizeWasm from 'asset-url:../../codecs/resize/pkg/squoosh_resize_bg.wasm';
+const resizePromise = resize.default(fsp.readFile(pathify(resizeWasm)));
+
+// rotate
+import rotateWasm from 'asset-url:../../codecs/rotate/rotate.wasm';
+
+// TODO(ergunsh): Type definitions of some modules do not exist
+// Figure out creating type definitions for them and remove `allowJs` rule
+// We shouldn't need to use Promise<QuantizerModule> below after getting type definitions for imageQuant
+// ImageQuant
+import imageQuant from '../../codecs/imagequant/imagequant_node.js';
+import imageQuantWasm from 'asset-url:../../codecs/imagequant/imagequant_node.wasm';
+const imageQuantPromise: Promise<QuantizerModule> = instantiateEmscriptenWasm(
+  imageQuant,
+  imageQuantWasm,
+);
+
+// Our decoders currently rely on a `ImageData` global.
+import ImageData from './image_data.js';
+globalThis.ImageData = ImageData;
+
+function resizeNameToIndex(name: string) {
+  switch (name) {
+    case 'triangle':
+      return 0;
+    case 'catrom':
+      return 1;
+    case 'mitchell':
+      return 2;
+    case 'lanczos3':
+      return 3;
+    default:
+      throw Error(`Unknown resize algorithm "${name}"`);
+  }
+}
+
+function resizeWithAspect({
+  input_width,
+  input_height,
+  target_width,
+  target_height,
+}: ResizeWithAspectParams): { width: number; height: number } {
+  if (!target_width && !target_height) {
+    throw Error('Need to specify at least width or height when resizing');
+  }
+
+  if (target_width && target_height) {
+    return { width: target_width, height: target_height };
+  }
+
+  if (!target_width) {
+    return {
+      width: Math.round((input_width / input_height) * target_height),
+      height: target_height,
+    };
+  }
+
+  return {
+    width: target_width,
+    height: Math.round((input_height / input_width) * target_width),
+  };
+}
+
+export const preprocessors = {
+  resize: {
+    name: 'Resize',
+    description: 'Resize the image before compressing',
+    instantiate: async () => {
+      await resizePromise;
+      return (
+        buffer: Uint8Array,
+        input_width: number,
+        input_height: number,
+        {
+          width,
+          height,
+          method,
+          premultiply,
+          linearRGB,
+        }: ResizeInstantiateOptions,
+      ) => {
+        ({ width, height } = resizeWithAspect({
+          input_width,
+          input_height,
+          target_width: width,
+          target_height: height,
+        }));
+        return new ImageData(
+          resize.resize(
+            buffer,
+            input_width,
+            input_height,
+            width,
+            height,
+            resizeNameToIndex(method),
+            premultiply,
+            linearRGB,
+          ),
+          width,
+          height,
+        );
+      };
+    },
+    defaultOptions: {
+      method: 'lanczos3',
+      fitMethod: 'stretch',
+      premultiply: true,
+      linearRGB: true,
+    },
+  },
+  // // TODO: Need to handle SVGs and HQX
+  quant: {
+    name: 'ImageQuant',
+    description: 'Reduce the number of colors used (aka. paletting)',
+    instantiate: async () => {
+      const imageQuant = await imageQuantPromise;
+      return (
+        buffer: Uint8Array,
+        width: number,
+        height: number,
+        { numColors, dither }: { numColors: number; dither: number },
+      ) =>
+        new ImageData(
+          imageQuant.quantize(buffer, width, height, numColors, dither),
+          width,
+          height,
+        );
+    },
+    defaultOptions: {
+      numColors: 255,
+      dither: 1.0,
+    },
+  },
+  rotate: {
+    name: 'Rotate',
+    description: 'Rotate image',
+    instantiate: async () => {
+      return async (
+        buffer: Uint8Array,
+        width: number,
+        height: number,
+        { numRotations }: { numRotations: number },
+      ) => {
+        const degrees = (numRotations * 90) % 360;
+        const sameDimensions = degrees == 0 || degrees == 180;
+        const size = width * height * 4;
+        const instance = (
+          await WebAssembly.instantiate(await fsp.readFile(pathify(rotateWasm)))
+        ).instance as RotateModuleInstance;
+        const { memory } = instance.exports;
+        const additionalPagesNeeded = Math.ceil(
+          (size * 2 - memory.buffer.byteLength + 8) / (64 * 1024),
+        );
+        if (additionalPagesNeeded > 0) {
+          memory.grow(additionalPagesNeeded);
+        }
+        const view = new Uint8ClampedArray(memory.buffer);
+        view.set(buffer, 8);
+        instance.exports.rotate(width, height, degrees);
+        return new ImageData(
+          view.slice(size + 8, size * 2 + 8),
+          sameDimensions ? width : height,
+          sameDimensions ? height : width,
+        );
+      };
+    },
+    defaultOptions: {
+      numRotations: 0,
+    },
+  },
+} as const;
+
+export const codecs = {
+  mozjpeg: {
+    name: 'MozJPEG',
+    extension: 'jpg',
+    detectors: [/^\xFF\xD8\xFF/],
+    dec: () =>
+      instantiateEmscriptenWasm(mozDec as DecodeModuleFactory, mozDecWasm),
+    enc: () =>
+      instantiateEmscriptenWasm(
+        mozEnc as EmscriptenWasm.ModuleFactory<MozJPEGEncodeModule>,
+        mozEncWasm,
+      ),
+    defaultEncoderOptions: {
+      quality: 75,
+      baseline: false,
+      arithmetic: false,
+      progressive: true,
+      optimize_coding: true,
+      smoothing: 0,
+      color_space: 3 /*YCbCr*/,
+      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,
+    },
+    autoOptimize: {
+      option: 'quality',
+      min: 0,
+      max: 100,
+    },
+  },
+  webp: {
+    name: 'WebP',
+    extension: 'webp',
+    detectors: [/^RIFF....WEBPVP8[LX ]/s],
+    dec: () =>
+      instantiateEmscriptenWasm(webpDec as DecodeModuleFactory, webpDecWasm),
+    enc: () =>
+      instantiateEmscriptenWasm(
+        webpEnc as EmscriptenWasm.ModuleFactory<WebPEncodeModule>,
+        webpEncWasm,
+      ),
+    defaultEncoderOptions: {
+      quality: 75,
+      target_size: 0,
+      target_PSNR: 0,
+      method: 4,
+      sns_strength: 50,
+      filter_strength: 60,
+      filter_sharpness: 0,
+      filter_type: 1,
+      partitions: 0,
+      segments: 4,
+      pass: 1,
+      show_compressed: 0,
+      preprocessing: 0,
+      autofilter: 0,
+      partition_limit: 0,
+      alpha_compression: 1,
+      alpha_filtering: 1,
+      alpha_quality: 100,
+      lossless: 0,
+      exact: 0,
+      image_hint: 0,
+      emulate_jpeg_size: 0,
+      thread_level: 0,
+      low_memory: 0,
+      near_lossless: 100,
+      use_delta_palette: 0,
+      use_sharp_yuv: 0,
+    },
+    autoOptimize: {
+      option: 'quality',
+      min: 0,
+      max: 100,
+    },
+  },
+  avif: {
+    name: 'AVIF',
+    extension: 'avif',
+    detectors: [/^\x00\x00\x00 ftypavif\x00\x00\x00\x00/],
+    dec: () =>
+      instantiateEmscriptenWasm(avifDec as DecodeModuleFactory, avifDecWasm),
+    enc: async () => {
+      if (await threads()) {
+        return instantiateEmscriptenWasm(
+          avifEncMt as EmscriptenWasm.ModuleFactory<AVIFEncodeModule>,
+          avifEncMtWasm,
+          avifEncMtWorker,
+        );
+      }
+      return instantiateEmscriptenWasm(
+        avifEnc as EmscriptenWasm.ModuleFactory<AVIFEncodeModule>,
+        avifEncWasm,
+      );
+    },
+    defaultEncoderOptions: {
+      cqLevel: 33,
+      cqAlphaLevel: -1,
+      denoiseLevel: 0,
+      tileColsLog2: 0,
+      tileRowsLog2: 0,
+      speed: 6,
+      subsample: 1,
+      chromaDeltaQ: false,
+      sharpness: 0,
+      tune: 0 /* AVIFTune.auto */,
+    },
+    autoOptimize: {
+      option: 'cqLevel',
+      min: 62,
+      max: 0,
+    },
+  },
+  jxl: {
+    name: 'JPEG-XL',
+    extension: 'jxl',
+    detectors: [/^\xff\x0a/],
+    dec: () =>
+      instantiateEmscriptenWasm(jxlDec as DecodeModuleFactory, jxlDecWasm),
+    enc: () =>
+      instantiateEmscriptenWasm(
+        jxlEnc as EmscriptenWasm.ModuleFactory<JXLEncodeModule>,
+        jxlEncWasm,
+      ),
+    defaultEncoderOptions: {
+      speed: 4,
+      quality: 75,
+      progressive: false,
+      epf: -1,
+      nearLossless: 0,
+      lossyPalette: false,
+      decodingSpeedTier: 0,
+    },
+    autoOptimize: {
+      option: 'quality',
+      min: 0,
+      max: 100,
+    },
+  },
+  wp2: {
+    name: 'WebP2',
+    extension: 'wp2',
+    detectors: [/^\xF4\xFF\x6F/],
+    dec: () =>
+      instantiateEmscriptenWasm(wp2Dec as DecodeModuleFactory, wp2DecWasm),
+    enc: () =>
+      instantiateEmscriptenWasm(
+        wp2Enc as EmscriptenWasm.ModuleFactory<WP2EncodeModule>,
+        wp2EncWasm,
+      ),
+    defaultEncoderOptions: {
+      quality: 75,
+      alpha_quality: 75,
+      effort: 5,
+      pass: 1,
+      sns: 50,
+      uv_mode: 0 /*UVMode.UVModeAuto*/,
+      csp_type: 0 /*Csp.kYCoCg*/,
+      error_diffusion: 0,
+      use_random_matrix: false,
+    },
+    autoOptimize: {
+      option: 'quality',
+      min: 0,
+      max: 100,
+    },
+  },
+  oxipng: {
+    name: 'OxiPNG',
+    extension: 'png',
+    detectors: [/^\x89PNG\x0D\x0A\x1A\x0A/],
+    dec: async () => {
+      await pngEncDecPromise;
+      return { decode: pngEncDec.decode };
+    },
+    enc: async () => {
+      await pngEncDecPromise;
+      await oxipngPromise;
+      return {
+        encode: (
+          buffer: Uint8ClampedArray | ArrayBuffer,
+          width: number,
+          height: number,
+          opts: { level: number },
+        ) => {
+          const simplePng = pngEncDec.encode(
+            new Uint8Array(buffer),
+            width,
+            height,
+          );
+          return oxipng.optimise(simplePng, opts.level, false);
+        },
+      };
+    },
+    defaultEncoderOptions: {
+      level: 2,
+    },
+    autoOptimize: {
+      option: 'level',
+      min: 6,
+      max: 1,
+    },
+  },
+} as const;

libsquoosh/src/emscripten-utils.ts

@@ -0,0 +1,26 @@
+import { fileURLToPath, URL } from 'url';
+
+export function pathify(path: string): string {
+  if (path.startsWith('file://')) {
+    path = fileURLToPath(path);
+  }
+  return path;
+}
+
+export function instantiateEmscriptenWasm<T extends EmscriptenWasm.Module>(
+  factory: EmscriptenWasm.ModuleFactory<T>,
+  path: string,
+  workerJS: string = '',
+): Promise<T> {
+  return factory({
+    locateFile(requestPath) {
+      // The glue code generated by emscripten uses the original
+      // file names of the worker file and the wasm binary.
+      // These will have changed in the bundling process and
+      // we need to inject them here.
+      if (requestPath.endsWith('.wasm')) return pathify(path);
+      if (requestPath.endsWith('.worker.js')) return new URL(workerJS).pathname;
+      return requestPath;
+    },
+  });
+}

libsquoosh/src/image_data.ts

@@ -0,0 +1,11 @@
+export default class ImageData {
+  readonly data: Uint8ClampedArray;
+  readonly width: number;
+  readonly height: number;
+
+  constructor(data: Uint8ClampedArray, width: number, height: number) {
+    this.data = data;
+    this.width = width;
+    this.height = height;
+  }
+}

libsquoosh/src/index.ts

@@ -0,0 +1,283 @@
+import { isMainThread } from 'worker_threads';
+import { cpus } from 'os';
+import { promises as fsp } from 'fs';
+
+import { codecs as encoders, preprocessors } from './codecs.js';
+import WorkerPool from './worker_pool.js';
+import { autoOptimize } from './auto-optimizer.js';
+import type ImageData from './image_data';
+
+export { ImagePool, encoders, preprocessors };
+type EncoderKey = keyof typeof encoders;
+type PreprocessorKey = keyof typeof preprocessors;
+type FileLike = Buffer | ArrayBuffer | string | ArrayBufferView;
+
+async function decodeFile({
+  file,
+}: {
+  file: FileLike;
+}): Promise<{ bitmap: ImageData; size: number }> {
+  let buffer;
+  if (ArrayBuffer.isView(file)) {
+    buffer = Buffer.from(file.buffer);
+    file = 'Binary blob';
+  } else if (file instanceof ArrayBuffer) {
+    buffer = Buffer.from(file);
+    file = 'Binary blob';
+  } else if ((file as unknown) instanceof Buffer) {
+    // TODO: Check why we need type assertions here.
+    buffer = (file as unknown) as Buffer;
+    file = 'Binary blob';
+  } else if (typeof file === 'string') {
+    buffer = await fsp.readFile(file);
+  } else {
+    throw Error('Unexpected input type');
+  }
+  const firstChunk = buffer.slice(0, 16);
+  const firstChunkString = Array.from(firstChunk)
+    .map((v) => String.fromCodePoint(v))
+    .join('');
+  const key = Object.entries(encoders).find(([_name, { detectors }]) =>
+    detectors.some((detector) => detector.exec(firstChunkString)),
+  )?.[0] as EncoderKey | undefined;
+  if (!key) {
+    throw Error(`${file} has an unsupported format`);
+  }
+  const encoder = encoders[key];
+  const mod = await encoder.dec();
+  const rgba = mod.decode(new Uint8Array(buffer));
+  return {
+    bitmap: rgba,
+    size: buffer.length,
+  };
+}
+
+async function preprocessImage({
+  preprocessorName,
+  options,
+  image,
+}: {
+  preprocessorName: PreprocessorKey;
+  options: any;
+  image: { bitmap: ImageData };
+}) {
+  const preprocessor = await preprocessors[preprocessorName].instantiate();
+  image.bitmap = await preprocessor(
+    Uint8Array.from(image.bitmap.data),
+    image.bitmap.width,
+    image.bitmap.height,
+    options,
+  );
+  return image;
+}
+
+async function encodeImage({
+  bitmap: bitmapIn,
+  encName,
+  encConfig,
+  optimizerButteraugliTarget,
+  maxOptimizerRounds,
+}: {
+  bitmap: ImageData;
+  encName: EncoderKey;
+  encConfig: any;
+  optimizerButteraugliTarget: number;
+  maxOptimizerRounds: number;
+}) {
+  let binary: Uint8Array;
+  let optionsUsed = encConfig;
+  const encoder = await encoders[encName].enc();
+  if (encConfig === 'auto') {
+    const optionToOptimize = encoders[encName].autoOptimize.option;
+    const decoder = await encoders[encName].dec();
+    const encode = (bitmapIn: ImageData, quality: number) =>
+      encoder.encode(
+        bitmapIn.data,
+        bitmapIn.width,
+        bitmapIn.height,
+        Object.assign({}, encoders[encName].defaultEncoderOptions as any, {
+          [optionToOptimize]: quality,
+        }),
+      );
+    const decode = (binary: Uint8Array) => decoder.decode(binary);
+    const nonNullEncode = (bitmap: ImageData, quality: number): Uint8Array => {
+      const result = encode(bitmap, quality);
+      if (!result) {
+        throw new Error('There was an error while encoding');
+      }
+      return result;
+    };
+    const { binary: optimizedBinary, quality } = await autoOptimize(
+      bitmapIn,
+      nonNullEncode,
+      decode,
+      {
+        min: encoders[encName].autoOptimize.min,
+        max: encoders[encName].autoOptimize.max,
+        butteraugliDistanceGoal: optimizerButteraugliTarget,
+        maxRounds: maxOptimizerRounds,
+      },
+    );
+    binary = optimizedBinary;
+    optionsUsed = {
+      // 5 significant digits is enough
+      [optionToOptimize]: Math.round(quality * 10000) / 10000,
+    };
+  } else {
+    const result = encoder.encode(
+      bitmapIn.data.buffer,
+      bitmapIn.width,
+      bitmapIn.height,
+      encConfig,
+    );
+
+    if (!result) {
+      throw new Error('There was an error while encoding');
+    }
+
+    binary = result;
+  }
+  return {
+    optionsUsed,
+    binary,
+    extension: encoders[encName].extension,
+    size: binary.length,
+  };
+}
+
+type EncodeParams = { operation: 'encode' } & Parameters<typeof encodeImage>[0];
+type DecodeParams = { operation: 'decode' } & Parameters<typeof decodeFile>[0];
+type PreprocessParams = { operation: 'preprocess' } & Parameters<
+  typeof preprocessImage
+>[0];
+type JobMessage = EncodeParams | DecodeParams | PreprocessParams;
+
+function handleJob(params: JobMessage) {
+  switch (params.operation) {
+    case 'encode':
+      return encodeImage(params);
+    case 'decode':
+      return decodeFile(params);
+    case 'preprocess':
+      return preprocessImage(params);
+    default:
+      throw Error(`Invalid job "${(params as any).operation}"`);
+  }
+}
+
+/**
+ * Represents an ingested image.
+ */
+class Image {
+  public file: FileLike;
+  public workerPool: WorkerPool<JobMessage, any>;
+  public decoded: Promise<{ bitmap: ImageData }>;
+  public encodedWith: { [key: string]: any };
+
+  constructor(workerPool: WorkerPool<JobMessage, any>, file: FileLike) {
+    this.file = file;
+    this.workerPool = workerPool;
+    this.decoded = workerPool.dispatchJob({ operation: 'decode', file });
+    this.encodedWith = {};
+  }
+
+  /**
+   * Define one or several preprocessors to use on the image.
+   * @param {object} preprocessOptions - An object with preprocessors to use, and their settings.
+   * @returns {Promise<undefined>} - A promise that resolves when all preprocessors have completed their work.
+   */
+  async preprocess(preprocessOptions = {}) {
+    for (const [name, options] of Object.entries(preprocessOptions)) {
+      if (!Object.keys(preprocessors).includes(name)) {
+        throw Error(`Invalid preprocessor "${name}"`);
+      }
+      const preprocessorName = name as PreprocessorKey;
+      const preprocessorOptions = Object.assign(
+        {},
+        preprocessors[preprocessorName].defaultOptions,
+        options,
+      );
+      this.decoded = this.workerPool.dispatchJob({
+        operation: 'preprocess',
+        preprocessorName,
+        image: await this.decoded,
+        options: preprocessorOptions,
+      });
+      await this.decoded;
+    }
+  }
+
+  /**
+   * Define one or several encoders to use on the image.
+   * @param {object} encodeOptions - An object with encoders to use, and their settings.
+   * @returns {Promise<void>} - A promise that resolves when the image has been encoded with all the specified encoders.
+   */
+  async encode(
+    encodeOptions: {
+      optimizerButteraugliTarget?: number;
+      maxOptimizerRounds?: number;
+    } & {
+      [key in EncoderKey]?: any; // any is okay for now
+    } = {},
+  ): Promise<void> {
+    const { bitmap } = await this.decoded;
+    for (const [name, options] of Object.entries(encodeOptions)) {
+      if (!Object.keys(encoders).includes(name)) {
+        continue;
+      }
+      const encName = name as EncoderKey;
+      const encRef = encoders[encName];
+      const encConfig =
+        typeof options === 'string'
+          ? options
+          : Object.assign({}, encRef.defaultEncoderOptions, options);
+      this.encodedWith[encName] = this.workerPool.dispatchJob({
+        operation: 'encode',
+        bitmap,
+        encName,
+        encConfig,
+        optimizerButteraugliTarget: Number(
+          encodeOptions.optimizerButteraugliTarget ?? 1.4,
+        ),
+        maxOptimizerRounds: Number(encodeOptions.maxOptimizerRounds ?? 6),
+      });
+    }
+    await Promise.all(Object.values(this.encodedWith));
+  }
+}
+
+/**
+ * A pool where images can be ingested and squooshed.
+ */
+class ImagePool {
+  public workerPool: WorkerPool<JobMessage, any>;
+
+  /**
+   * Create a new pool.
+   * @param {number} [threads] - Number of concurrent image processes to run in the pool. Defaults to the number of CPU cores in the system.
+   */
+  constructor(threads: number) {
+    this.workerPool = new WorkerPool(threads || cpus().length, __filename);
+  }
+
+  /**
+   * Ingest an image into the image pool.
+   * @param {FileLike} image - The image or path to the image that should be ingested and decoded.
+   * @returns {Image} - A custom class reference to the decoded image.
+   */
+  ingestImage(image: FileLike): Image {
+    return new Image(this.workerPool, image);
+  }
+
+  /**
+   * Closes the underlying image processing pipeline. The already processed images will still be there, but no new processing can start.
+   * @returns {Promise<void>} - A promise that resolves when the underlying pipeline has closed.
+   */
+  async close(): Promise<void> {
+    await this.workerPool.join();
+  }
+}
+
+if (!isMainThread) {
+  WorkerPool.useThisThreadAsWorker(handleJob);
+}

libsquoosh/src/missing-types.d.ts

@@ -0,0 +1,43 @@
+/// <reference path="../../missing-types.d.ts" />
+
+declare module 'asset-url:*' {
+  const value: string;
+  export default value;
+}
+
+// Somehow TS picks up definitions from the module itself
+// instead of using `asset-url:*`. It is probably related to
+// specifity of the module declaration and these declarations below fix it
+declare module 'asset-url:../../codecs/png/pkg/squoosh_png_bg.wasm' {
+  const value: string;
+  export default value;
+}
+
+declare module 'asset-url:../../codecs/oxipng/pkg/squoosh_oxipng_bg.wasm' {
+  const value: string;
+  export default value;
+}
+
+declare module 'asset-url:../../codecs/resize/pkg/squoosh_resize_bg.wasm' {
+  const value: string;
+  export default value;
+}
+
+declare module 'chunk-url:../../codecs/avif/enc/avif_node_enc_mt.worker.js' {
+  const value: string;
+  export default value;
+}
+
+// These don't exist in NodeJS types so we're not able to use them but they are referenced in some emscripten and codec types
+// Thus, we need to explicitly assign them to be `never`
+// We're also not able to use the APIs that use these types
+// So, if we want to use those APIs we need to supply its dependencies ourselves
+// However, probably those APIs are more suited to be used in web (i.e. there can be other
+// dependencies to web APIs that might not work in Node)
+type RequestInfo = never;
+type Response = never;
+type WebGLRenderingContext = never;
+type MessageEvent = never;
+
+type BufferSource = ArrayBufferView | ArrayBuffer;
+type URL = import('url').URL;

libsquoosh/src/worker_pool.ts

@@ -0,0 +1,124 @@
+import { Worker, parentPort } from 'worker_threads';
+import { TransformStream } from 'web-streams-polyfill';
+
+function uuid() {
+  return Array.from({ length: 16 }, () =>
+    Math.floor(Math.random() * 256).toString(16),
+  ).join('');
+}
+
+interface Job<I> {
+  msg: I;
+  resolve: Function;
+  reject: Function;
+}
+
+export default class WorkerPool<I, O> {
+  public numWorkers: number;
+  public jobQueue: TransformStream<Job<I>, Job<I>>;
+  public workerQueue: TransformStream<Worker, Worker>;
+  public done: Promise<void>;
+
+  constructor(numWorkers: number, workerFile: string) {
+    this.numWorkers = numWorkers;
+    this.jobQueue = new TransformStream();
+    this.workerQueue = new TransformStream();
+
+    const writer = this.workerQueue.writable.getWriter();
+    for (let i = 0; i < numWorkers; i++) {
+      writer.write(new Worker(workerFile));
+    }
+    writer.releaseLock();
+
+    this.done = this._readLoop();
+  }
+
+  async _readLoop() {
+    const reader = this.jobQueue.readable.getReader();
+    while (true) {
+      const { value, done } = await reader.read();
+      if (done) {
+        await this._terminateAll();
+        return;
+      }
+
+      if (!value) {
+        throw new Error('Reader did not return any value');
+      }
+
+      const { msg, resolve, reject } = value;
+      const worker = await this._nextWorker();
+      this.jobPromise(worker, msg)
+        .then((result) => resolve(result))
+        .catch((reason) => reject(reason))
+        .finally(() => {
+          // Return the worker to the pool
+          const writer = this.workerQueue.writable.getWriter();
+          writer.write(worker);
+          writer.releaseLock();
+        });
+    }
+  }
+
+  async _nextWorker() {
+    const reader = this.workerQueue.readable.getReader();
+    const { value } = await reader.read();
+    reader.releaseLock();
+    if (!value) {
+      throw new Error('No worker left');
+    }
+
+    return value;
+  }
+
+  async _terminateAll() {
+    for (let n = 0; n < this.numWorkers; n++) {
+      const worker = await this._nextWorker();
+      worker.terminate();
+    }
+    this.workerQueue.writable.close();
+  }
+
+  async join() {
+    this.jobQueue.writable.getWriter().close();
+    await this.done;
+  }
+
+  dispatchJob(msg: I): Promise<O> {
+    return new Promise((resolve, reject) => {
+      const writer = this.jobQueue.writable.getWriter();
+      writer.write({ msg, resolve, reject });
+      writer.releaseLock();
+    });
+  }
+
+  private jobPromise(worker: Worker, msg: I) {
+    return new Promise((resolve, reject) => {
+      const id = uuid();
+      worker.postMessage({ msg, id });
+      worker.on('message', function f({ error, result, id: rid }) {
+        if (rid !== id) {
+          return;
+        }
+        if (error) {
+          reject(error);
+          return;
+        }
+        worker.off('message', f);
+        resolve(result);
+      });
+    });
+  }
+
+  static useThisThreadAsWorker<I, O>(cb: (msg: I) => O) {
+    parentPort!.on('message', async (data) => {
+      const { msg, id } = data;
+      try {
+        const result = await cb(msg);
+        parentPort!.postMessage({ result, id });
+      } catch (e) {
+        parentPort!.postMessage({ error: e.message, id });
+      }
+    });
+  }
+}

libsquoosh/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../generic-tsconfig.json",
+  "compilerOptions": {
+    "lib": ["esnext"],
+    "types": ["node"],
+    "allowJs": true
+  },
+  "include": ["src/**/*", "../codecs/**/*"]
+}

missing-types.d.ts

@@ -44,11 +44,6 @@ declare module 'data-url:*' {
   export default url;
 }
 
-declare module 'data-url-text:*' {
-  const url: string;
-  export default url;
-}
-
 declare module 'service-worker:*' {
   const url: string;
   export default url;

package-lock.json

@@ -5,24 +5,26 @@
   "requires": true,
   "packages": {
     "": {
-      "name": "squoosh",
       "version": "2.0.0",
       "license": "apache-2.0",
+      "dependencies": {
+        "wasm-feature-detect": "^1.2.11"
+      },
       "devDependencies": {
         "@rollup/plugin-commonjs": "^17.0.0",
         "@rollup/plugin-node-resolve": "^11.1.0",
         "@rollup/plugin-replace": "^2.3.4",
         "@surma/rollup-plugin-off-main-thread": "^2.2.2",
         "@types/dedent": "^0.7.0",
-        "@types/mime-types": "^2.1.1",
+        "@types/mime-types": "^2.1.0",
-        "@types/node": "^16.11.1",
+        "@types/node": "^14.14.7",
         "@web/rollup-plugin-import-meta-assets": "^1.0.6",
         "comlink": "^4.3.0",
         "cssnano": "^4.1.10",
         "dedent": "^0.7.0",
         "del": "^5.1.0",
         "file-drop-element": "^1.0.1",
-        "husky": "^7.0.2",
+        "husky": "^4.3.0",
         "idb-keyval": "^3.2.0",
         "image-size": "^0.9.3",
         "linkstate": "^2.0.0",
@@ -30,7 +32,7 @@
         "lodash.camelcase": "^4.3.0",
         "mime-types": "^2.1.28",
         "npm-run-all": "^4.1.5",
-        "pointer-tracker": "^2.5.3",
+        "pointer-tracker": "^2.4.0",
         "postcss": "^7.0.35",
         "postcss-modules": "^3.2.2",
         "postcss-nested": "^4.2.3",
@@ -38,29 +40,14 @@
         "postcss-url": "^8.0.0",
         "preact": "^10.5.5",
         "preact-render-to-string": "^5.1.11",
-        "prettier": "^2.4.1",
+        "prettier": "^2.1.2",
         "rollup": "^2.38.0",
         "rollup-plugin-terser": "^7.0.2",
         "serve": "^11.3.2",
-        "typescript": "^4.4.4",
+        "typescript": "^4.1.3",
-        "wasm-feature-detect": "^1.2.11",
         "which": "^2.0.2"
       }
     },
-    "../pointer-tracker": {
-      "version": "2.5.0",
-      "extraneous": true,
-      "license": "Apache-2.0",
-      "devDependencies": {
-        "husky": "^4.2.5",
-        "lint-staged": "^10.2.11",
-        "prettier": "^2.0.5",
-        "rollup": "^2.23.1",
-        "rollup-plugin-terser": "^7.0.0",
-        "rollup-plugin-typescript2": "^0.27.2",
-        "typescript": "^3.9.7"
-      }
-    },
     "node_modules/@babel/code-frame": {
       "version": "7.10.4",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.10.4.tgz",
@@ -314,9 +301,9 @@
       }
     },
     "node_modules/@types/mime-types": {
-      "version": "2.1.1",
+      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/@types/mime-types/-/mime-types-2.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/@types/mime-types/-/mime-types-2.1.0.tgz",
-      "integrity": "sha512-vXOTGVSLR2jMw440moWTC7H19iUyLtP3Z1YTj7cSsubOICinjMxFeb/V57v9QdyyPGbbWolUFSSmSiRSn94tFw==",
+      "integrity": "sha1-nKUs2jY/aZxpRmwqbM2q2RPqenM=",
       "dev": true
     },
     "node_modules/@types/minimatch": {
@@ -326,9 +313,9 @@
       "dev": true
     },
     "node_modules/@types/node": {
-      "version": "16.11.1",
+      "version": "14.14.7",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-16.11.1.tgz",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.7.tgz",
-      "integrity": "sha512-PYGcJHL9mwl1Ek3PLiYgyEKtwTMmkMw4vbiyz/ps3pfdRYLVv+SN7qHVAImrjdAXxgluDEw6Ph4lyv+m9UpRmA==",
+      "integrity": "sha512-Zw1vhUSQZYw+7u5dAwNbIA9TuTotpzY/OF7sJM9FqPOF3SPjKnxrjoTktXDZgUjybf4cWVBP7O8wvKdSaGHweg==",
       "dev": true
     },
     "node_modules/@types/parse-json": {
@@ -865,6 +852,12 @@
         "node": ">=4"
       }
     },
+    "node_modules/ci-info": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-2.0.0.tgz",
+      "integrity": "sha512-5tK7EtrZ0N+OLFMthtqOj4fI2Jeb88C4CAZPu25LDVUgXJ0A3Js4PMGqrn0JU1W0Mh1/Z8wZzYPxqUrXeBboCQ==",
+      "dev": true
+    },
     "node_modules/clean-stack": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/clean-stack/-/clean-stack-2.2.0.tgz",
@@ -1169,6 +1162,12 @@
       "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
       "dev": true
     },
+    "node_modules/compare-versions": {
+      "version": "3.6.0",
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+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+      "dev": true
+    },
     "parent-module": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
@@ -11662,6 +11867,12 @@
         "lines-and-columns": "^1.1.6"
       }
     },
+    "path-exists": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+      "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
+      "dev": true
+    },
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
@@ -11716,6 +11927,15 @@
       "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
       "dev": true
     },
+    "pkg-dir": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz",
+      "integrity": "sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==",
+      "dev": true,
+      "requires": {
+        "find-up": "^4.0.0"
+      }
+    },
     "please-upgrade-node": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/please-upgrade-node/-/please-upgrade-node-3.2.0.tgz",
@@ -11726,9 +11946,9 @@
       }
     },
     "pointer-tracker": {
-      "version": "2.5.3",
+      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/pointer-tracker/-/pointer-tracker-2.5.3.tgz",
+      "resolved": "https://registry.npmjs.org/pointer-tracker/-/pointer-tracker-2.4.0.tgz",
-      "integrity": "sha512-LiJUeIbzk4dXq678YeyrZ++mdY17q4n/2sBHfU9wIuvmSzdiPgMvmvWN2g8mY4J7YwYOIrqrZUWP/MfFHVwYtg==",
+      "integrity": "sha512-pWI2tpaM/XNtc9mUTv42Rmjf6mkHvE8LT5DDEq0G7baPNhxNM9E3CepubPplSoSLk9E5bwQrAMyDcPVmJyTW4g==",
       "dev": true
     },
     "postcss": {
@@ -14795,9 +15015,9 @@
       }
     },
     "prettier": {
-      "version": "2.4.1",
+      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.4.1.tgz",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.1.2.tgz",
-      "integrity": "sha512-9fbDAXSBcc6Bs1mZrDYb3XKzDLm4EXXL9sC1LqKP5rZkT6KRr/rf9amVUcODVXgguK/isJz0d0hP72WeaKWsvA==",
+      "integrity": "sha512-16c7K+x4qVlJg9rEbXl7HEGmQyZlG4R9AgP+oHKRMsMsuk8s+ATStlf1NpDqyBI1HpVyfjLOeMhH2LvuNvV5Vg==",
       "dev": true
     },
     "pretty-format": {
@@ -15023,6 +15243,12 @@
       "integrity": "sha1-De4hahyUGrN+nvsXiPavxf9VN/w=",
       "dev": true
     },
+    "semver-regex": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/semver-regex/-/semver-regex-2.0.0.tgz",
+      "integrity": "sha512-mUdIBBvdn0PLOeP3TEkMH7HHeUP3GjsXCwKarjv/kGmUFOYg1VqEemKhoQpWMu6X2I8kHeuVdGibLGkVK+/5Qw==",
+      "dev": true
+    },
     "serialize-javascript": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-4.0.0.tgz",
@@ -15677,9 +15903,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "4.4.4",
+      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
+      "integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
       "dev": true
     },
     "uniq": {
@@ -15756,8 +15982,7 @@
     "wasm-feature-detect": {
       "version": "1.2.11",
       "resolved": "https://registry.npmjs.org/wasm-feature-detect/-/wasm-feature-detect-1.2.11.tgz",
-      "integrity": "sha512-HUqwaodrQGaZgz1lZaNioIkog9tkeEJjrM3eq4aUL04whXOVDRc/o2EGb/8kV0QX411iAYWEqq7fMBmJ6dKS6w==",
+      "integrity": "sha512-HUqwaodrQGaZgz1lZaNioIkog9tkeEJjrM3eq4aUL04whXOVDRc/o2EGb/8kV0QX411iAYWEqq7fMBmJ6dKS6w=="
-      "dev": true
     },
     "which": {
       "version": "2.0.2",
@@ -15768,6 +15993,12 @@
         "isexe": "^2.0.0"
       }
     },
+    "which-pm-runs": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/which-pm-runs/-/which-pm-runs-1.0.0.tgz",
+      "integrity": "sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=",
+      "dev": true
+    },
     "widest-line": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.1.tgz",

package.json

@@ -8,8 +8,7 @@
     "debug": "node --inspect-brk node_modules/.bin/rollup -c",
     "dev": "DEV_PORT=\"${DEV_PORT:=5000}\" run-p watch serve",
     "watch": "rollup -cw",
-    "serve": "serve --listen=$DEV_PORT --config ../../../serve.json .tmp/build/static",
+    "serve": "serve --listen=$DEV_PORT --config ../../../serve.json .tmp/build/static"
-    "prepare": "husky install"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^17.0.0",
@@ -17,15 +16,15 @@
     "@rollup/plugin-replace": "^2.3.4",
     "@surma/rollup-plugin-off-main-thread": "^2.2.2",
     "@types/dedent": "^0.7.0",
-    "@types/mime-types": "^2.1.1",
+    "@types/mime-types": "^2.1.0",
-    "@types/node": "^16.11.1",
+    "@types/node": "^14.14.7",
     "@web/rollup-plugin-import-meta-assets": "^1.0.6",
     "comlink": "^4.3.0",
     "cssnano": "^4.1.10",
     "dedent": "^0.7.0",
     "del": "^5.1.0",
     "file-drop-element": "^1.0.1",
-    "husky": "^7.0.2",
+    "husky": "^4.3.0",
     "idb-keyval": "^3.2.0",
     "image-size": "^0.9.3",
     "linkstate": "^2.0.0",
@@ -33,7 +32,7 @@
     "lodash.camelcase": "^4.3.0",
     "mime-types": "^2.1.28",
     "npm-run-all": "^4.1.5",
-    "pointer-tracker": "^2.5.3",
+    "pointer-tracker": "^2.4.0",
     "postcss": "^7.0.35",
     "postcss-modules": "^3.2.2",
     "postcss-nested": "^4.2.3",
@@ -41,17 +40,24 @@
     "postcss-url": "^8.0.0",
     "preact": "^10.5.5",
     "preact-render-to-string": "^5.1.11",
-    "prettier": "^2.4.1",
+    "prettier": "^2.1.2",
     "rollup": "^2.38.0",
     "rollup-plugin-terser": "^7.0.2",
     "serve": "^11.3.2",
-    "typescript": "^4.4.4",
+    "typescript": "^4.1.3",
-    "which": "^2.0.2",
+    "which": "^2.0.2"
-    "wasm-feature-detect": "^1.2.11"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
   },
   "lint-staged": {
     "*.{js,css,json,md,ts,tsx}": "prettier --write",
     "*.{c,h,cpp,hpp}": "clang-format -i",
     "*.rs": "rustfmt"
+  },
+  "dependencies": {
+    "wasm-feature-detect": "^1.2.11"
   }
 }

rollup.config.js

@@ -86,7 +86,6 @@ export default async function ({ watch }) {
       'src/features-worker',
       'src/features-worker-worker-bridge',
       'src/sw',
-      'src/worker-shared',
       'codecs',
     ]),
     urlPlugin(),

src/client/initial-app/index.tsx

@@ -37,10 +37,8 @@ main();
   ga('set', 'transport', 'beacon');
   ga('set', 'dimension1', displayMode);
   ga('send', 'pageview', '/index.html', { title: 'Squoosh' });
-  // Load the GA script without keeping the browser spinner going.
+  // Load the GA script
-  addEventListener('load', () => {
   const script = document.createElement('script');
   script.src = 'https://www.google-analytics.com/analytics.js';
   document.head.appendChild(script);
-  });
 }

src/client/lazy-app/Compress/Options/Checkbox/index.tsx

@@ -11,11 +11,7 @@ export default class Checkbox extends Component<Props, State> {
     return (
       <div class={style.checkbox}>
         {props.checked ? (
-          props.disabled ? (
-            <CheckedIcon class={`${style.icon} ${style.disabled}`} />
-          ) : (
           <CheckedIcon class={`${style.icon} ${style.checked}`} />
-          )
         ) : (
           <UncheckedIcon class={style.icon} />
         )}

src/client/lazy-app/Compress/Options/Checkbox/style.css

@@ -2,26 +2,6 @@
   display: inline-block;
   position: relative;
   --size: 17px;
-
-  &::before {
-    content: '';
-    position: absolute;
-    top: 50%;
-    left: 50%;
-    width: 200%;
-    height: 200%;
-    background-color: var(--main-theme-color);
-    border-radius: 999px;
-    opacity: 0.25;
-
-    transform: translate(-50%, -50%) scale(0);
-    transition-property: transform;
-    transition-duration: 250ms;
-  }
-
-  &:focus-within::before {
-    transform: translate(-50%, -50%) scale(1);
-  }
 }
 
 .real-checkbox {
@@ -40,7 +20,3 @@
 .checked {
   fill: var(--main-theme-color);
 }
-
-.disabled {
-  fill: var(--dark-gray);
-}

src/client/lazy-app/Compress/Options/Range/custom-els/RangeInput/index.ts

@@ -20,7 +20,7 @@ const REFLECTED_ATTRIBUTES = [
   'disabled',
 ];
 
-function getPrecision(value: string): number {
+function getPrescision(value: string): number {
   const afterDecimal = value.split('.')[1];
   return afterDecimal ? afterDecimal.length : 0;
 }
@@ -112,14 +112,13 @@ class RangeInputElement extends HTMLElement {
     this.dispatchEvent(retargetted);
   };
 
-  private _getDisplayValue(value: number): string {
+  private _formatDisplayValue(value: number): string {
-    if (value >= 10000) return (value / 1000).toFixed(1) + 'k';
-
     const labelPrecision =
-      Number(this.labelPrecision) || getPrecision(this.step) || 0;
+      Number(this.labelPrecision) || getPrescision(this.step) || 0;
-    return labelPrecision
+    if (labelPrecision) {
-      ? value.toFixed(labelPrecision)
+      return value.toFixed(labelPrecision);
-      : Math.round(value).toString();
+    }
+    return Math.round(value).toString();
   }
 
   private _update = () => {
@@ -129,7 +128,7 @@ class RangeInputElement extends HTMLElement {
     const min = Number(this.min) || 0;
     const max = Number(this.max) || 100;
     const percent = (100 * (value - min)) / (max - min);
-    const displayValue = this._getDisplayValue(value);
+    const displayValue = this._formatDisplayValue(value);
 
     this._valueDisplay!.textContent = displayValue;
     this.style.setProperty('--value-percent', percent + '%');

src/client/lazy-app/Compress/Options/Range/custom-els/RangeInput/style.css

@@ -47,10 +47,6 @@ range-input::before {
   height: 12px;
 }
 
-range-input:focus-within .thumb {
-  outline: white solid 2px;
-}
-
 .thumb-wrapper {
   position: absolute;
   left: 6px;

src/client/lazy-app/Compress/Options/Range/style.css

@@ -35,7 +35,7 @@
   text-decoration-style: dotted;
   text-decoration-color: var(--main-theme-color);
   text-underline-position: under;
-  width: 54px;
+  width: 48px;
   position: relative;
   left: 5px;
 

src/client/lazy-app/Compress/Options/Toggle/style.css

@@ -11,10 +11,6 @@
   padding: 3px calc(var(--thumb-size) / 2 + 3px);
 }
 
-.checkbox:focus-within .track {
-  outline: white solid 2px;
-}
-
 .thumb {
   position: relative;
   width: var(--thumb-size);

src/client/lazy-app/Compress/Options/index.tsx

@@ -17,7 +17,7 @@ import Toggle from './Toggle';
 import Select from './Select';
 import { Options as QuantOptionsComponent } from 'features/processors/quantize/client';
 import { Options as ResizeOptionsComponent } from 'features/processors/resize/client';
-import { ImportIcon, SaveIcon, SwapIcon } from 'client/lazy-app/icons';
+import { CLIIcon, SwapIcon } from 'client/lazy-app/icons';
 
 interface Props {
   index: 0 | 1;
@@ -29,22 +29,20 @@ interface Props {
   onEncoderOptionsChange(index: 0 | 1, newOptions: EncoderOptions): void;
   onProcessorOptionsChange(index: 0 | 1, newOptions: ProcessorState): void;
   onCopyToOtherSideClick(index: 0 | 1): void;
-  onSaveSideSettingsClick(index: 0 | 1): void;
+  onCopyCliClick(index: 0 | 1): void;
-  onImportSideSettingsClick(index: 0 | 1): void;
 }
 
 interface State {
   supportedEncoderMap?: PartialButNotUndefined<typeof encoderMap>;
-  leftSideSettings?: string | null;
-  rightSideSettings?: string | null;
 }
 
 type PartialButNotUndefined<T> = {
   [P in keyof T]: T[P];
 };
 
-const supportedEncoderMapP: Promise<PartialButNotUndefined<typeof encoderMap>> =
+const supportedEncoderMapP: Promise<PartialButNotUndefined<
-  (async () => {
+  typeof encoderMap
+>> = (async () => {
   const supportedEncoderMap: PartialButNotUndefined<typeof encoderMap> = {
     ...encoderMap,
   };
@@ -59,13 +57,11 @@ const supportedEncoderMapP: Promise<PartialButNotUndefined<typeof encoderMap>> =
   );
 
   return supportedEncoderMap;
-  })();
+})();
 
 export default class Options extends Component<Props, State> {
   state: State = {
     supportedEncoderMap: undefined,
-    leftSideSettings: localStorage.getItem('leftSideSettings'),
-    rightSideSettings: localStorage.getItem('rightSideSettings'),
   };
 
   constructor() {
@@ -75,29 +71,6 @@ export default class Options extends Component<Props, State> {
     );
   }
 
-  private setLeftSideSettings = () => {
-    this.setState({
-      leftSideSettings: localStorage.getItem('leftSideSettings'),
-    });
-  };
-
-  private setRightSideSettings = () => {
-    this.setState({
-      rightSideSettings: localStorage.getItem('rightSideSettings'),
-    });
-  };
-
-  componentDidMount(): void {
-    // Changing the state when side setting is stored in localstorage
-    window.addEventListener('leftSideSettings', this.setLeftSideSettings);
-    window.addEventListener('rightSideSettings', this.setRightSideSettings);
-  }
-
-  componentWillUnmount(): void {
-    window.removeEventListener('leftSideSettings', this.setLeftSideSettings);
-    window.removeEventListener('removeSideSettings', this.setRightSideSettings);
-  }
-
   private onEncoderTypeChange = (event: Event) => {
     const el = event.currentTarget as HTMLSelectElement;
 
@@ -135,18 +108,14 @@ export default class Options extends Component<Props, State> {
     this.props.onEncoderOptionsChange(this.props.index, newOptions);
   };
 
+  private onCopyCliClick = () => {
+    this.props.onCopyCliClick(this.props.index);
+  };
+
   private onCopyToOtherSideClick = () => {
     this.props.onCopyToOtherSideClick(this.props.index);
   };
 
-  private onSaveSideSettingClick = () => {
-    this.props.onSaveSideSettingsClick(this.props.index);
-  };
-
-  private onImportSideSettingsClick = () => {
-    this.props.onImportSideSettingsClick(this.props.index);
-  };
-
   render(
     { source, encoderState, processorState }: Props,
     { supportedEncoderMap }: State,
@@ -169,6 +138,13 @@ export default class Options extends Component<Props, State> {
               <h3 class={style.optionsTitle}>
                 <div class={style.titleAndButtons}>
                   Edit
+                  <button
+                    class={style.cliButton}
+                    title="Copy npx command"
+                    onClick={this.onCopyCliClick}
+                  >
+                    <CLIIcon />
+                  </button>
                   <button
                     class={style.copyOverButton}
                     title="Copy settings to other side"
@@ -176,36 +152,6 @@ export default class Options extends Component<Props, State> {
                   >
                     <SwapIcon />
                   </button>
-                  <button
-                    class={style.saveButton}
-                    title="Save side settings"
-                    onClick={this.onSaveSideSettingClick}
-                  >
-                    <SaveIcon />
-                  </button>
-                  <button
-                    class={
-                      style.importButton +
-                      ' ' +
-                      (!this.state.leftSideSettings && this.props.index === 0
-                        ? style.buttonOpacity
-                        : '') +
-                      ' ' +
-                      (!this.state.rightSideSettings && this.props.index === 1
-                        ? style.buttonOpacity
-                        : '')
-                    }
-                    title="Import saved side settings"
-                    onClick={this.onImportSideSettingsClick}
-                    disabled={
-                      // Disabled if this side's settings haven't been saved
-                      (!this.state.leftSideSettings &&
-                        this.props.index === 0) ||
-                      (!this.state.rightSideSettings && this.props.index === 1)
-                    }
-                  >
-                    <ImportIcon />
-                  </button>
                 </div>
               </h3>
               <label class={style.sectionEnabler}>
@@ -257,9 +203,7 @@ export default class Options extends Component<Props, State> {
               onChange={this.onEncoderTypeChange}
               large
             >
-              <option value="identity">{`Original Image ${
+              <option value="identity">Original Image</option>
-                this.props.source ? `(${this.props.source.file.name})` : ''
-              }`}</option>
               {Object.entries(supportedEncoderMap).map(([type, encoder]) => (
                 <option value={type}>{encoder.meta.label}</option>
               ))}

src/client/lazy-app/Compress/Options/style.css

@@ -53,16 +53,6 @@
   composes: option-toggle;
   grid-template-columns: auto 1fr;
   gap: 1em;
-
-  border-top: 1px solid #fff4;
-
-  transition-property: background-color;
-  transition-duration: 250ms;
-}
-
-.option-reveal:focus-within,
-.option-reveal:hover {
-  background-color: #fff2;
 }
 
 .option-one-cell {
@@ -83,11 +73,11 @@
 }
 
 .text-field {
-  background-color: var(--black);
+  background: var(--white);
-  color: var(--white);
+  color: var(--black);
   font: inherit;
   border: none;
-  padding: 6px 6px 6px 10px;
+  padding: 6px 0 6px 10px;
   width: 100%;
   box-sizing: border-box;
   border-radius: 4px;
@@ -122,37 +112,7 @@
 .copy-over-button {
   composes: title-button;
 
-  /* Make the filled arrow point towards the other options element */
-  transform: rotate(var(--rotate-copyoverbutton-angle));
-
   svg {
     fill: var(--header-text-color);
   }
-
-  &:focus {
-    outline: var(--header-text-color) solid 2px;
-    outline-offset: 0.25em;
-  }
-}
-
-.save-button,
-.import-button {
-  composes: title-button;
-
-  svg {
-    stroke: var(--header-text-color);
-  }
-
-  &:focus {
-    outline: var(--header-text-color) solid 2px;
-    outline-offset: 0.25em;
-  }
-}
-
-.button-opacity {
-  pointer-events: none;
-  cursor: not-allowed;
-  svg {
-    opacity: 0.5;
-  }
 }

src/client/lazy-app/Compress/Output/custom-els/PinchZoom/index.ts

@@ -1,6 +1,5 @@
 import PointerTracker, { Pointer } from 'pointer-tracker';
 import 'add-css:./styles.css';
-import { isSafari } from 'client/lazy-app/util';
 
 interface Point {
   clientX: number;
@@ -106,23 +105,14 @@ export default class PinchZoom extends HTMLElement {
     const pointerTracker: PointerTracker = new PointerTracker(this, {
       start: (pointer, event) => {
         // We only want to track 2 pointers at most
-        if (
+        if (pointerTracker.currentPointers.length === 2 || !this._positioningEl)
-          pointerTracker.currentPointers.length === 2 ||
-          !this._positioningEl
-        ) {
           return false;
-        }
         event.preventDefault();
         return true;
       },
       move: (previousPointers) => {
         this._onPointerMove(previousPointers, pointerTracker.currentPointers);
       },
-      // Unfortunately Safari on iOS has a bug where pointer event capturing
-      // doesn't work in some cases, and we hit those cases due to our event
-      // retargeting in pinch-zoom.
-      // https://bugs.webkit.org/show_bug.cgi?id=220196
-      avoidPointerEvents: isSafari,
     });
 
     this.addEventListener('wheel', (event) => this._onWheel(event));

src/client/lazy-app/Compress/Output/custom-els/TwoUp/styles.css

@@ -40,8 +40,7 @@ two-up[legacy-clip-compat] > :not(.two-up-handle) {
 }
 
 .scrubber {
-  display: grid;
+  display: flex;
-  align-content: center;
   position: absolute;
   top: 50%;
   left: 50%;
@@ -55,6 +54,10 @@ two-up[legacy-clip-compat] > :not(.two-up-handle) {
   padding: 0 calc(var(--thumb-size) * 0.24);
 }
 
+.scrubber svg {
+  flex: 1;
+}
+
 .arrow-left {
   fill: var(--pink);
 }

src/client/lazy-app/Compress/Output/index.tsx

@@ -5,10 +5,8 @@ import './custom-els/PinchZoom';
 import './custom-els/TwoUp';
 import * as style from './style.css';
 import 'add-css:./style.css';
-import { shallowEqual, isSafari } from '../../util';
+import { shallowEqual } from '../../util';
 import {
-  ToggleAliasingIcon,
-  ToggleAliasingActiveIcon,
   ToggleBackgroundIcon,
   AddIcon,
   RemoveIcon,
@@ -21,6 +19,7 @@ import { cleanSet } from '../../util/clean-modify';
 import type { SourceImage } from '../../Compress';
 import { linkRef } from 'shared/prerendered-app/util';
 import { drawDataToCanvas } from 'client/lazy-app/util/canvas';
+
 interface Props {
   source?: SourceImage;
   preprocessorState?: PreprocessorState;
@@ -36,7 +35,6 @@ interface State {
   scale: number;
   editingScale: boolean;
   altBackground: boolean;
-  aliasing: boolean;
 }
 
 const scaleToOpts: ScaleToOpts = {
@@ -51,7 +49,6 @@ export default class Output extends Component<Props, State> {
     scale: 1,
     editingScale: false,
     altBackground: false,
-    aliasing: false,
   };
   canvasLeft?: HTMLCanvasElement;
   canvasRight?: HTMLCanvasElement;
@@ -148,12 +145,6 @@ export default class Output extends Component<Props, State> {
     return props.rightCompressed || (props.source && props.source.preprocessed);
   }
 
-  private toggleAliasing = () => {
-    this.setState((state) => ({
-      aliasing: !state.aliasing,
-    }));
-  };
-
   private toggleBackground = () => {
     this.setState({
       altBackground: !this.state.altBackground,
@@ -264,7 +255,7 @@ export default class Output extends Component<Props, State> {
 
   render(
     { mobileView, leftImgContain, rightImgContain, source }: Props,
-    { scale, editingScale, altBackground, aliasing }: State,
+    { scale, editingScale, altBackground }: State,
   ) {
     const leftDraw = this.leftDrawable();
     const rightDraw = this.rightDrawable();
@@ -284,11 +275,7 @@ export default class Output extends Component<Props, State> {
             onTouchStartCapture={this.onRetargetableEvent}
             onTouchEndCapture={this.onRetargetableEvent}
             onTouchMoveCapture={this.onRetargetableEvent}
-            onPointerDownCapture={
+            onPointerDownCapture={this.onRetargetableEvent}
-              // We avoid pointer events in our PinchZoom due to a Safari bug.
-              // That means we also need to avoid them here too, else we end up preventing the fallback mouse events.
-              isSafari ? undefined : this.onRetargetableEvent
-            }
             onMouseDownCapture={this.onRetargetableEvent}
             onWheelCapture={this.onRetargetableEvent}
           >
@@ -298,9 +285,7 @@ export default class Output extends Component<Props, State> {
               ref={linkRef(this, 'pinchZoomLeft')}
             >
               <canvas
-                class={`${style.pinchTarget} ${
+                class={style.pinchTarget}
-                  aliasing ? style.pixelated : ''
-                }`}
                 ref={linkRef(this, 'canvasLeft')}
                 width={leftDraw && leftDraw.width}
                 height={leftDraw && leftDraw.height}
@@ -316,9 +301,7 @@ export default class Output extends Component<Props, State> {
               ref={linkRef(this, 'pinchZoomRight')}
             >
               <canvas
-                class={`${style.pinchTarget} ${
+                class={style.pinchTarget}
-                  aliasing ? style.pixelated : ''
-                }`}
                 ref={linkRef(this, 'canvasRight')}
                 width={rightDraw && rightDraw.width}
                 height={rightDraw && rightDraw.height}
@@ -362,31 +345,10 @@ export default class Output extends Component<Props, State> {
             </button>
           </div>
           <div class={style.buttonGroup}>
-            <button
+            <button class={style.firstButton} onClick={this.onRotateClick}>
-              class={style.firstButton}
-              onClick={this.onRotateClick}
-              title="Rotate"
-            >
               <RotateIcon />
             </button>
-            {!isSafari && (
+            <button class={style.lastButton} onClick={this.toggleBackground}>
-              <button
-                class={style.button}
-                onClick={this.toggleAliasing}
-                title="Toggle smoothing"
-              >
-                {aliasing ? (
-                  <ToggleAliasingActiveIcon />
-                ) : (
-                  <ToggleAliasingIcon />
-                )}
-              </button>
-            )}
-            <button
-              class={style.lastButton}
-              onClick={this.toggleBackground}
-              title="Toggle background"
-            >
               {altBackground ? (
                 <ToggleBackgroundActiveIcon />
               ) : (

src/client/lazy-app/Compress/Output/style.css

@@ -49,7 +49,6 @@
   align-self: center;
   padding: 9px 66px;
   position: relative;
-  gap: 6px;
 
   /* Allow clicks to fall through to the pinch zoom area */
   pointer-events: none;
@@ -69,6 +68,7 @@
   display: flex;
   position: relative;
   z-index: 100;
+  margin: 0 3px;
 }
 
 .button,
@@ -86,7 +86,8 @@
   font-size: 1.2rem;
   cursor: pointer;
 
-  &:focus-visible {
+  &:focus {
+    /* box-shadow: 0 0 0 2px var(--hot-pink); */
     box-shadow: 0 0 0 2px #fff;
     outline: none;
     z-index: 1;
@@ -95,7 +96,6 @@
 
 .button {
   color: #fff;
-  margin: 0;
 
   &:hover {
     background: rgba(50, 50, 50, 0.92);
@@ -115,7 +115,7 @@
 .last-button {
   composes: button;
   border-radius: 0 6px 6px 0;
-  border-right-width: 1px;
+  border-left-width: 1px;
 }
 
 .zoom {
@@ -161,8 +161,3 @@ input.zoom {
     pointer-events: auto;
   }
 }
-
-.pixelated {
-  image-rendering: crisp-edges;
-  image-rendering: pixelated;
-}

src/client/lazy-app/Compress/index.tsx

@@ -31,6 +31,7 @@ import Results from './Results';
 import WorkerBridge from '../worker-bridge';
 import { resize } from 'features/processors/resize/client';
 import type SnackBarElement from 'shared/custom-els/snack-bar';
+import { generateCliInvocation } from '../util/cli';
 import { drawableToImageData } from '../util/canvas';
 
 export type OutputType = EncoderType | 'identity';
@@ -99,6 +100,9 @@ async function decodeImage(
 
   try {
     if (!canDecode) {
+      if (mimeType === 'image/ktx2') {
+        return await workerBridge.basisDecode(signal, blob);
+      }
       if (mimeType === 'image/avif') {
         return await workerBridge.avifDecode(signal, blob);
       }
@@ -113,9 +117,9 @@ async function decodeImage(
       }
     }
     // Otherwise fall through and try built-in decoding for a laugh.
-    return await builtinDecode(signal, blob);
+    return await builtinDecode(signal, blob, mimeType);
   } catch (err) {
-    if (err instanceof Error && err.name === 'AbortError') throw err;
+    if (err.name === 'AbortError') throw err;
     console.log(err);
     throw Error("Couldn't decode image");
   }
@@ -281,26 +285,15 @@ export default class Compress extends Component<Props, State> {
     source: undefined,
     loading: false,
     preprocessorState: defaultPreprocessorState,
-    // Tasking catched side settings if available otherwise taking default settings
     sides: [
-      localStorage.getItem('leftSideSettings')
+      {
-        ? {
-            ...JSON.parse(localStorage.getItem('leftSideSettings') as string),
-            loading: false,
-          }
-        : {
         latestSettings: {
           processorState: defaultProcessorState,
           encoderState: undefined,
         },
         loading: false,
       },
-      localStorage.getItem('rightSideSettings')
+      {
-        ? {
-            ...JSON.parse(localStorage.getItem('rightSideSettings') as string),
-            loading: false,
-          }
-        : {
         latestSettings: {
           processorState: defaultProcessorState,
           encoderState: {
@@ -439,99 +432,6 @@ export default class Compress extends Component<Props, State> {
       sides: cleanSet(this.state.sides, otherIndex, oldSettings),
     });
   };
-  /**
-   * This function saves encodedSettings and latestSettings of
-   * particular side in browser local storage
-   * @param index : (0|1)
-   * @returns
-   */
-  private onSaveSideSettingsClick = async (index: 0 | 1) => {
-    if (index === 0) {
-      const leftSideSettings = JSON.stringify({
-        encodedSettings: this.state.sides[index].encodedSettings,
-        latestSettings: this.state.sides[index].latestSettings,
-      });
-      localStorage.setItem('leftSideSettings', leftSideSettings);
-      // Firing an event when we save side settings in localstorage
-      window.dispatchEvent(new CustomEvent('leftSideSettings'));
-      await this.props.showSnack('Left side settings saved', {
-        timeout: 1500,
-        actions: ['dismiss'],
-      });
-      return;
-    }
-
-    if (index === 1) {
-      const rightSideSettings = JSON.stringify({
-        encodedSettings: this.state.sides[index].encodedSettings,
-        latestSettings: this.state.sides[index].latestSettings,
-      });
-      localStorage.setItem('rightSideSettings', rightSideSettings);
-      // Firing an event when we save side settings in localstorage
-      window.dispatchEvent(new CustomEvent('rightSideSettings'));
-      await this.props.showSnack('Right side settings saved', {
-        timeout: 1500,
-        actions: ['dismiss'],
-      });
-      return;
-    }
-  };
-
-  /**
-   * This function sets the side state with catched localstorage
-   * value as per side index provided
-   * @param index : (0|1)
-   * @returns
-   */
-  private onImportSideSettingsClick = async (index: 0 | 1) => {
-    const leftSideSettingsString = localStorage.getItem('leftSideSettings');
-    const rightSideSettingsString = localStorage.getItem('rightSideSettings');
-
-    if (index === 0 && leftSideSettingsString) {
-      const oldLeftSideSettings = this.state.sides[index];
-      const newLeftSideSettings = {
-        ...this.state.sides[index],
-        ...JSON.parse(leftSideSettingsString),
-      };
-      this.setState({
-        sides: cleanSet(this.state.sides, index, newLeftSideSettings),
-      });
-      const result = await this.props.showSnack('Left side settings imported', {
-        timeout: 3000,
-        actions: ['undo', 'dismiss'],
-      });
-      if (result === 'undo') {
-        this.setState({
-          sides: cleanSet(this.state.sides, index, oldLeftSideSettings),
-        });
-      }
-      return;
-    }
-
-    if (index === 1 && rightSideSettingsString) {
-      const oldRightSideSettings = this.state.sides[index];
-      const newRightSideSettings = {
-        ...this.state.sides[index],
-        ...JSON.parse(rightSideSettingsString),
-      };
-      this.setState({
-        sides: cleanSet(this.state.sides, index, newRightSideSettings),
-      });
-      const result = await this.props.showSnack(
-        'Right side settings imported',
-        {
-          timeout: 3000,
-          actions: ['undo', 'dismiss'],
-        },
-      );
-      if (result === 'undo') {
-        this.setState({
-          sides: cleanSet(this.state.sides, index, oldRightSideSettings),
-        });
-      }
-      return;
-    }
-  };
 
   private onPreprocessorChange = async (
     preprocessorState: PreprocessorState,
@@ -565,6 +465,29 @@ export default class Compress extends Component<Props, State> {
     }));
   };
 
+  private onCopyCliClick = async (index: 0 | 1) => {
+    try {
+      const cliInvocation = generateCliInvocation(
+        this.state.sides[index].latestSettings.encoderState!,
+        this.state.sides[index].latestSettings.processorState,
+      );
+      await navigator.clipboard.writeText(cliInvocation);
+      const result = await this.props.showSnack(
+        'CLI command copied to clipboard',
+        {
+          timeout: 8000,
+          actions: ['usage', 'dismiss'],
+        },
+      );
+
+      if (result === 'usage') {
+        open('https://github.com/GoogleChromeLabs/squoosh/tree/dev/cli');
+      }
+    } catch (e) {
+      this.props.showSnack(e);
+    }
+  };
+
   /**
    * Debounce the heavy lifting of updateImage.
    * Otherwise, the thrashing causes jank, and sometimes crashes iOS Safari.
@@ -720,7 +643,7 @@ export default class Compress extends Component<Props, State> {
           return { sides };
         });
       } catch (err) {
-        if (err instanceof Error && err.name === 'AbortError') return;
+        if (err.name === 'AbortError') return;
         this.props.showSnack(`Source decoding error: ${err}`);
         throw err;
       }
@@ -778,7 +701,7 @@ export default class Compress extends Component<Props, State> {
           return newState;
         });
       } catch (err) {
-        if (err instanceof Error && err.name === 'AbortError') return;
+        if (err.name === 'AbortError') return;
         this.setState({ loading: false });
         this.props.showSnack(`Preprocessing error: ${err}`);
         throw err;
@@ -902,7 +825,7 @@ export default class Compress extends Component<Props, State> {
 
         this.activeSideJobs[sideIndex] = undefined;
       } catch (err) {
-        if (err instanceof Error && err.name === 'AbortError') return;
+        if (err.name === 'AbortError') return;
         this.setState((currentState) => {
           const sides = cleanMerge(currentState.sides, sideIndex, {
             loading: false,
@@ -932,9 +855,8 @@ export default class Compress extends Component<Props, State> {
         onEncoderTypeChange={this.onEncoderTypeChange}
         onEncoderOptionsChange={this.onEncoderOptionsChange}
         onProcessorOptionsChange={this.onProcessorOptionsChange}
+        onCopyCliClick={this.onCopyCliClick}
         onCopyToOtherSideClick={this.onCopyToOtherClick}
-        onSaveSideSettingsClick={this.onSaveSideSettingsClick}
-        onImportSideSettingsClick={this.onImportSideSettingsClick}
       />
     ));
 
@@ -948,7 +870,7 @@ export default class Compress extends Component<Props, State> {
         typeLabel={
           side.latestSettings.encoderState
             ? encoderMap[side.latestSettings.encoderState.type].meta.label
-            : `${side.file ? `${side.file.name}` : 'Original Image'}`
+            : 'Original Image'
         }
       />
     ));

src/client/lazy-app/Compress/style.css

@@ -45,11 +45,9 @@
   --hot-theme-color: var(--hot-pink);
   --header-text-color: var(--white);
   --scroller-radius: var(--options-radius) var(--options-radius) 0 0;
-  --rotate-copyoverbutton-angle: 90deg; /* To point down */
 
   @media (min-width: 600px) {
     --scroller-radius: 0 var(--options-radius) var(--options-radius) 0;
-    --rotate-copyoverbutton-angle: 0deg; /* To point right (no change) */
   }
 }
 
@@ -58,11 +56,9 @@
   --hot-theme-color: var(--deep-blue);
   --header-text-color: var(--dark-text);
   --scroller-radius: var(--options-radius) var(--options-radius) 0 0;
-  --rotate-copyoverbutton-angle: -90deg; /* To point up */
 
   @media (min-width: 600px) {
     --scroller-radius: var(--options-radius) 0 0 var(--options-radius);
-    --rotate-copyoverbutton-angle: 180deg; /* To point left */
   }
 }
 
@@ -113,13 +109,6 @@
 
   & > svg {
     width: 47px;
-    overflow: visible;
-  }
-
-  &:focus .back-blob {
-    stroke: var(--deep-blue);
-    stroke-width: 5px;
-    animation: strokePulse 500ms ease forwards;
   }
 
   @media (min-width: 600px) {
@@ -131,15 +120,6 @@
   }
 }
 
-@keyframes strokePulse {
-  from {
-    stroke-width: 8px;
-  }
-  to {
-    stroke-width: 5px;
-  }
-}
-
 .back-blob {
   fill: var(--hot-pink);
   opacity: 0.77;

src/client/lazy-app/icons/index.tsx

@@ -11,25 +11,6 @@ const Icon = (props: preact.JSX.HTMLAttributes) => (
   />
 );
 
-export const ToggleAliasingIcon = (props: preact.JSX.HTMLAttributes) => (
-  <Icon {...props}>
-    <circle
-      cx="12"
-      cy="12"
-      r="8"
-      fill="none"
-      stroke="currentColor"
-      stroke-width="2"
-    />
-  </Icon>
-);
-
-export const ToggleAliasingActiveIcon = (props: preact.JSX.HTMLAttributes) => (
-  <Icon {...props}>
-    <path d="M12 3h5v2h2v2h2v5h-2V9h-2V7h-2V5h-3V3M21 12v5h-2v2h-2v2h-5v-2h3v-2h2v-2h2v-3h2M12 21H7v-2H5v-2H3v-5h2v3h2v2h2v2h3v2M3 12V7h2V5h2V3h5v2H9v2H7v2H5v3H3" />
-  </Icon>
-);
-
 export const ToggleBackgroundIcon = (props: preact.JSX.HTMLAttributes) => (
   <Icon {...props}>
     <path d="M3 13h2v-2H3v2zm0 4h2v-2H3v2zm2 4v-2H3c0 1.1.9 2 2 2zM3 9h2V7H3v2zm12 12h2v-2h-2v2zm4-18H9a2 2 0 0 0-2 2v10c0 1.1.9 2 2 2h10a2 2 0 0 0 2-2V5a2 2 0 0 0-2-2zm0 12H9V5h10v10zm-8 6h2v-2h-2v2zm-4 0h2v-2H7v2z" />
@@ -92,36 +73,19 @@ export const DownloadIcon = () => (
   </svg>
 );
 
+export const CLIIcon = () => (
+  <svg viewBox="0 0 81.3 68.8">
+    <path
+      fill="none"
+      stroke-miterlimit="15.6"
+      stroke-width="6.3"
+      d="M3.1 3.1h75v62.5h-75zm18.8 43.8l12.5-12.5-12.5-12.5m18.7 25h18.8"
+    />
+  </svg>
+);
+
 export const SwapIcon = () => (
   <svg viewBox="0 0 18 14">
     <path d="M5.5 3.6v6.8L2.1 7l3.4-3.4M7 0L0 7l7 7V0zm4 0v14l7-7-7-7z" />
   </svg>
 );
-
-export const SaveIcon = () => (
-  <svg viewBox="0 0 24 24">
-    <g
-      fill="none"
-      stroke-linecap="round"
-      stroke-linejoin="round"
-      stroke-width="2"
-    >
-      <path d="M12.501 20.93c-.866.25-1.914-.166-2.176-1.247a1.724 1.724 0 0 0-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 0 0-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 0 0 1.066-2.573c-.94-1.543.826-3.31 2.37-2.37c1 .608 2.296.07 2.572-1.065c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 0 0 2.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 0 0 1.065 2.572c1.074.26 1.49 1.296 1.252 2.158M19 22v-6m3 3l-3-3l-3 3" />
-      <path d="M9 12a3 3 0 1 0 6 0a3 3 0 0 0-6 0" />
-    </g>
-  </svg>
-);
-
-export const ImportIcon = () => (
-  <svg viewBox="0 0 24 24">
-    <g
-      fill="none"
-      stroke-linecap="round"
-      stroke-linejoin="round"
-      stroke-width="2"
-    >
-      <path d="M12.52 20.924c-.87.262-1.93-.152-2.195-1.241a1.724 1.724 0 0 0-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 0 0-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 0 0 1.066-2.573c-.94-1.543.826-3.31 2.37-2.37c1 .608 2.296.07 2.572-1.065c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 0 0 2.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 0 0 1.065 2.572c1.088.264 1.502 1.323 1.242 2.192M19 16v6m3-3l-3 3l-3-3" />
-      <path d="M9 12a3 3 0 1 0 6 0a3 3 0 0 0-6 0" />
-    </g>
-  </svg>
-);

src/client/lazy-app/util/canvas.ts

@@ -63,17 +63,35 @@ interface DrawableToImageDataOptions {
   sh?: number;
 }
 
+function getWidth(
+  drawable: ImageBitmap | HTMLImageElement | VideoFrame,
+): number {
+  if ('displayWidth' in drawable) {
+    return drawable.displayWidth;
+  }
+  return drawable.width;
+}
+
+function getHeight(
+  drawable: ImageBitmap | HTMLImageElement | VideoFrame,
+): number {
+  if ('displayHeight' in drawable) {
+    return drawable.displayHeight;
+  }
+  return drawable.height;
+}
+
 export function drawableToImageData(
-  drawable: ImageBitmap | HTMLImageElement,
+  drawable: ImageBitmap | HTMLImageElement | VideoFrame,
   opts: DrawableToImageDataOptions = {},
 ): ImageData {
   const {
-    width = drawable.width,
+    width = getWidth(drawable),
-    height = drawable.height,
+    height = getHeight(drawable),
     sx = 0,
     sy = 0,
-    sw = drawable.width,
+    sw = getWidth(drawable),
-    sh = drawable.height,
+    sh = getHeight(drawable),
   } = opts;
 
   // Make canvas same size as image