Update codecs/jxl/dec/jxl_dec.cpp

The JXL decoder now does colorspace conversion to sRGB correctly,
independently of the color space that the JPEG XL file was in.

codecs/avif/Makefile

@@ -0,0 +1,76 @@
+CODEC_URL = https://github.com/AOMediaCodec/libavif/archive/v0.8.0.tar.gz
+CODEC_DIR = node_modules/libavif
+CODEC_BUILD_DIR := $(CODEC_DIR)/build
+CODEC_OUT := $(CODEC_BUILD_DIR)/libavif.a
+
+LIBAOM_URL = https://aomedia.googlesource.com/aom/+archive/v2.0.0.tar.gz
+LIBAOM_DIR := $(CODEC_DIR)/ext/aom
+LIBAOM_BUILD_DIR := $(LIBAOM_DIR)/build.libavif
+LIBAOM_OUT := $(LIBAOM_BUILD_DIR)/libaom.a
+
+OUT_JS = enc/avif_enc.js dec/avif_dec.js
+OUT_WASM = $(OUT_JS:.js=.wasm)
+
+.PHONY: all clean
+
+all: $(OUT_JS)
+
+%.js: %.cpp $(LIBAOM_OUT) $(CODEC_OUT)
+	$(CXX) \
+		-I $(CODEC_DIR)/include \
+		${CXXFLAGS} \
+		${LDFLAGS} \
+		--bind \
+		--closure 1 \
+		-s ALLOW_MEMORY_GROWTH=1 \
+		-s MODULARIZE=1 \
+		-s 'EXPORT_NAME="$(basename $(@F))"' \
+		-o $@ \
+		$+
+
+$(CODEC_OUT): $(CODEC_DIR)/CMakeLists.txt $(LIBAOM_OUT)
+	mkdir -p $(CODEC_BUILD_DIR)
+	cd $(CODEC_BUILD_DIR) && \
+	emcmake cmake \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DBUILD_SHARED_LIBS=0 \
+		-DAVIF_CODEC_AOM=1 \
+		-DAVIF_LOCAL_AOM=1 \
+		../ && \
+	$(MAKE)
+
+$(LIBAOM_OUT): $(LIBAOM_DIR)/CMakeLists.txt
+	mkdir -p $(LIBAOM_BUILD_DIR)
+	cd $(LIBAOM_BUILD_DIR) && \
+	emcmake cmake \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DENABLE_CCACHE=0 \
+		-DAOM_TARGET_CPU=generic \
+		-DENABLE_DOCS=0 \
+		-DENABLE_TESTS=0 \
+		-DENABLE_EXAMPLES=0 \
+		-DENABLE_TOOLS=0 \
+		-DCONFIG_ACCOUNTING=1 \
+		-DCONFIG_INSPECTION=0 \
+		-DCONFIG_MULTITHREAD=0 \
+		-DCONFIG_RUNTIME_CPU_DETECT=0 \
+		-DCONFIG_WEBM_IO=0 \
+		../ && \
+	$(MAKE)
+
+$(CODEC_DIR)/CMakeLists.txt: $(CODEC_DIR)
+
+$(LIBAOM_DIR)/CMakeLists.txt: $(LIBAOM_DIR)
+
+$(CODEC_DIR):
+	mkdir -p $@
+	curl -sL $(CODEC_URL) | tar xz --strip 1 -C $@
+
+$(LIBAOM_DIR):
+	mkdir -p $@
+	curl -sL $(LIBAOM_URL) | tar xz -C $@
+
+clean:
+	$(RM) $(OUT_JS) $(OUT_WASM)
+	$(MAKE) -C $(CODEC_BUILD_DIR) clean
+	$(MAKE) -C $(LIBAOM_BUILD_DIR) clean

codecs/avif/dec/README.md

@@ -0,0 +1,14 @@
+# AVIF decoder
+
+- Source: <https://github.com/AOMediaCodec/libavif>
+- Version: v0.5.4
+
+## Example
+
+See `example.html`
+
+## API
+
+### `RawImage decode(std::string buffer)`
+
+Decodes the given avif buffer into raw RGBA. `RawImage` is a class with 3 fields: `buffer`, `width`, and `height`.

codecs/avif/dec/avif_dec.cpp

@@ -0,0 +1,50 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include "avif/avif.h"
+
+using namespace emscripten;
+
+thread_local const val Uint8ClampedArray = val::global("Uint8ClampedArray");
+thread_local const val ImageData = val::global("ImageData");
+
+val decode(std::string avifimage) {
+  // point raw.data and raw.size to the contents of an .avif(s)
+  avifROData raw = {
+    .data = (uint8_t*)avifimage.c_str(),
+    .size = avifimage.length()
+  };
+
+  avifImage* image = avifImageCreateEmpty();
+  avifDecoder* decoder = avifDecoderCreate();
+  avifResult decodeResult = avifDecoderRead(decoder, image, &raw);
+  // image is an independent copy of decoded data, decoder may be destroyed here
+  avifDecoderDestroy(decoder);
+
+  val result = val::null();
+
+  if (decodeResult == AVIF_RESULT_OK) {
+    // Convert to interleaved RGB(A)/BGR(A) using a libavif-allocated buffer.
+    avifRGBImage rgb;
+    avifRGBImageSetDefaults(&rgb, image);  // Defaults to AVIF_RGB_FORMAT_RGBA which is what we want.
+    rgb.depth = 8;  // Does not need to match image->depth. We always want 8-bit pixels.
+
+    avifRGBImageAllocatePixels(&rgb);
+    avifImageYUVToRGB(image, &rgb);
+
+    // We want to create a *copy* of the decoded data to be owned by the JavaScript side.
+    // For that, we perform `new Uint8Array(wasmMemBuffer, wasmPtr, wasmSize).slice()`:
+    result = ImageData.new_(Uint8ClampedArray.new_(typed_memory_view(rgb.rowBytes * rgb.height, rgb.pixels)), rgb.width, rgb.height);
+
+    // Now we can safely free the RGB pixels:
+    avifRGBImageFreePixels(&rgb);
+  }
+
+  // Image has been converted to RGB, we don't need the original anymore.
+  avifImageDestroy(image);
+
+  return result;
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  function("decode", &decode);
+}

codecs/avif/dec/avif_dec.d.ts

@@ -0,0 +1,6 @@
+interface AVIFModule extends EmscriptenWasm.Module {
+  decode(data: BufferSource): ImageData | null;
+}
+
+export default function(opts: EmscriptenWasm.ModuleOpts): AVIFModule;
+

codecs/avif/dec/avif_dec.js

@@ -0,0 +1,111 @@
+
+var avif_dec = (function() {
+  var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
+  if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
+  return (
+function(avif_dec) {
+  avif_dec = avif_dec || {};
+
+
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+function fd(){function a(){if(!dd&&(dd=!0,e.calledRun=!0,!qa)){e.noFSInit||Pb||(Pb=!0,Ob(),e.stdin=e.stdin,e.stdout=e.stdout,e.stderr=e.stderr,e.stdin?Rb("stdin",e.stdin):Kb("/dev/tty","/dev/stdin"),e.stdout?Rb("stdout",null,e.stdout):Kb("/dev/tty","/dev/stdout"),e.stderr?Rb("stderr",null,e.stderr):Kb("/dev/tty1","/dev/stderr"),Lb("/dev/stdin","r"),Lb("/dev/stdout","w"),Lb("/dev/stderr","w"));Ga(Ia);ub=!1;Ga(Ja);aa(e);if(e.onRuntimeInitialized)e.onRuntimeInitialized();if(e.postRun)for("function"==
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+
+
+  return avif_dec.ready
+}
+);
+})();
+if (typeof exports === 'object' && typeof module === 'object')
+      module.exports = avif_dec;
+    else if (typeof define === 'function' && define['amd'])
+      define([], function() { return avif_dec; });
+    else if (typeof exports === 'object')
+      exports["avif_dec"] = avif_dec;
+    

codecs/avif/enc/README.md

@@ -0,0 +1,37 @@
+# AVIF encoder
+
+- Source: <https://github.com/AOMediaCodec/libavif>
+- Version: v0.5.4
+
+## Example
+
+Run example.js
+
+## API
+
+### `Uint8Array encode(std::string image_in, int image_width, int image_height, AvifOptions opts)`
+
+Encodes the given image with given dimension to AVIF. Options looks like this:
+
+```c++
+struct AvifOptions {
+  // 0 = lossless
+  // 63 = worst quality
+  int minQuantizer;
+  int maxQuantizer;
+
+  // [0 - 6]
+  // Creates 2^n tiles in that dimension
+  int tileRowsLog2;
+  int tileColsLog2;
+
+  // 0 = slowest
+  // 10 = fastest
+  int speed;
+
+  // 0 = 4:2:0
+  // 1 = 4:2:2
+  // 2 = 4:4:4
+  int subsample;
+};
+```

codecs/avif/enc/avif_enc.cpp

@@ -0,0 +1,84 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include "avif/avif.h"
+
+using namespace emscripten;
+
+struct AvifOptions {
+  // [0 - 63]
+  // 0 = lossless
+  // 63 = worst quality
+  int minQuantizer;
+  int maxQuantizer;
+  // [0 - 6]
+  // Creates 2^n tiles in that dimension
+  int tileRowsLog2;
+  int tileColsLog2;
+  // [0 - 10]
+  // 0 = slowest
+  // 10 = fastest
+  int speed;
+  // 0 = 4:2:0
+  // 1 = 4:2:2
+  // 2 = 4:4:4
+  int subsample;
+};
+
+thread_local const val Uint8Array = val::global("Uint8Array");
+
+val encode(std::string buffer, int width, int height, AvifOptions options) {
+  avifRWData output = AVIF_DATA_EMPTY;
+  int depth = 8;
+  avifPixelFormat format;
+  switch (options.subsample) {
+    case 0:
+      format = AVIF_PIXEL_FORMAT_YUV420;
+      break;
+    case 1:
+      format = AVIF_PIXEL_FORMAT_YUV422;
+      break;
+    case 2:
+      format = AVIF_PIXEL_FORMAT_YUV444;
+      break;
+  }
+
+  avifImage* image = avifImageCreate(width, height, depth, format);
+
+  uint8_t* rgba = (uint8_t*)buffer.c_str();
+
+  avifRGBImage srcRGB;
+  avifRGBImageSetDefaults(&srcRGB, image);
+  srcRGB.pixels = rgba;
+  srcRGB.rowBytes = width * 4;
+  avifImageRGBToYUV(image, &srcRGB);
+
+  avifEncoder* encoder = avifEncoderCreate();
+  encoder->maxThreads = 1;
+  encoder->minQuantizer = options.minQuantizer;
+  encoder->maxQuantizer = options.maxQuantizer;
+  encoder->tileRowsLog2 = options.tileRowsLog2;
+  encoder->tileColsLog2 = options.tileColsLog2;
+  encoder->speed = options.speed;
+  avifResult encodeResult = avifEncoderWrite(encoder, image, &output);
+  auto js_result = val::null();
+  if (encodeResult == AVIF_RESULT_OK) {
+	  js_result = Uint8Array.new_(typed_memory_view(output.size, output.data));
+  }
+
+  avifImageDestroy(image);
+  avifEncoderDestroy(encoder);
+  avifRWDataFree(&output);
+  return js_result;
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  value_object<AvifOptions>("AvifOptions")
+      .field("minQuantizer", &AvifOptions::minQuantizer)
+      .field("maxQuantizer", &AvifOptions::maxQuantizer)
+      .field("tileRowsLog2", &AvifOptions::tileRowsLog2)
+      .field("tileColsLog2", &AvifOptions::tileColsLog2)
+      .field("speed", &AvifOptions::speed)
+      .field("subsample", &AvifOptions::subsample);
+
+  function("encode", &encode);
+}

codecs/avif/enc/avif_enc.d.ts

@@ -0,0 +1,7 @@
+import { EncodeOptions } from '../../../src/codecs/avif/encoder-meta';
+
+interface AVIFModule extends EmscriptenWasm.Module {
+  encode(data: BufferSource, width: number, height: number, options: EncodeOptions): Uint8Array | null;
+}
+
+export default function(opts: EmscriptenWasm.ModuleOpts): AVIFModule;

codecs/avif/enc/avif_enc.js

@@ -0,0 +1,114 @@
+
+var avif_enc = (function() {
+  var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
+  if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
+  return (
+function(avif_enc) {
+  avif_enc = avif_enc || {};
+
+
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+else if(!h.seekable)throw new L(70);var v=h.Oa.write(h,p,k,l,n,void 0);t||(h.position+=v);try{if(h.path&&wb.onWriteToFile)wb.onWriteToFile(h.path)}catch(E){z("FS.trackingDelegate['onWriteToFile']('"+h.path+"') threw an exception: "+E.message)}var w=v;if(0>w){var q=-1;break a}a+=w}q=a}F[d>>2]=q;return 0}catch(E){return"undefined"!==typeof Q&&E instanceof L||x(E),E.Wa}},a:function(){return ma|0},m:Gc,e:Hc,G:Ic,o:Jc,F:Kc,C:Lc,B:Mc,D:Nc,I:Oc,k:Pc,l:Qc,c:Rc,memory:A,g:function(a){a=+a;return 0<=a?+Oa(a+
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+var Za=e.___wasm_call_ctors=function(){return(Za=e.___wasm_call_ctors=e.asm.V).apply(null,arguments)},pb=e._malloc=function(){return(pb=e._malloc=e.asm.W).apply(null,arguments)},W=e._free=function(){return(W=e._free=e.asm.X).apply(null,arguments)},wc=e.___getTypeName=function(){return(wc=e.___getTypeName=e.asm.Y).apply(null,arguments)};e.___embind_register_native_and_builtin_types=function(){return(e.___embind_register_native_and_builtin_types=e.asm.Z).apply(null,arguments)};
+var Fc=e.___errno_location=function(){return(Fc=e.___errno_location=e.asm._).apply(null,arguments)},X=e._setThrew=function(){return(X=e._setThrew=e.asm.$).apply(null,arguments)},Y=e.stackSave=function(){return(Y=e.stackSave=e.asm.aa).apply(null,arguments)},Z=e.stackRestore=function(){return(Z=e.stackRestore=e.asm.ba).apply(null,arguments)},Tc=e.dynCall_v=function(){return(Tc=e.dynCall_v=e.asm.ca).apply(null,arguments)},Uc=e.dynCall_vi=function(){return(Uc=e.dynCall_vi=e.asm.da).apply(null,arguments)},
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+var Zc=e.dynCall_iiiii=function(){return(Zc=e.dynCall_iiiii=e.asm.ka).apply(null,arguments)},$c=e.dynCall_iiiiiiiii=function(){return($c=e.dynCall_iiiiiiiii=e.asm.la).apply(null,arguments)},ad=e.dynCall_iiiiiiiiii=function(){return(ad=e.dynCall_iiiiiiiiii=e.asm.ma).apply(null,arguments)},bd=e.dynCall_iiiijj=function(){return(bd=e.dynCall_iiiijj=e.asm.na).apply(null,arguments)},cd=e.dynCall_ij=function(){return(cd=e.dynCall_ij=e.asm.oa).apply(null,arguments)},dd=e.dynCall_jjij=function(){return(dd=
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+e.dynCall_viiiiiiiiiii=function(){return(e.dynCall_viiiiiiiiiii=e.asm.va).apply(null,arguments)};e.dynCall_viiiiiiiiiiii=function(){return(e.dynCall_viiiiiiiiiiii=e.asm.wa).apply(null,arguments)};e.dynCall_viiiiiii=function(){return(e.dynCall_viiiiiii=e.asm.xa).apply(null,arguments)};e.dynCall_viiiiiiiii=function(){return(e.dynCall_viiiiiiiii=e.asm.ya).apply(null,arguments)};e.dynCall_jiiiiiiiii=function(){return(e.dynCall_jiiiiiiiii=e.asm.za).apply(null,arguments)};
+e.dynCall_iiiiiii=function(){return(e.dynCall_iiiiiii=e.asm.Aa).apply(null,arguments)};e.dynCall_iiiiiiii=function(){return(e.dynCall_iiiiiiii=e.asm.Ba).apply(null,arguments)};e.dynCall_iiiiiiiiiiii=function(){return(e.dynCall_iiiiiiiiiiii=e.asm.Ca).apply(null,arguments)};e.dynCall_jiji=function(){return(e.dynCall_jiji=e.asm.Da).apply(null,arguments)};e.dynCall_iidiiii=function(){return(e.dynCall_iidiiii=e.asm.Ea).apply(null,arguments)};
+e.dynCall_viiiiiiiiii=function(){return(e.dynCall_viiiiiiiiii=e.asm.Fa).apply(null,arguments)};e.dynCall_viiiiiiiiiiiii=function(){return(e.dynCall_viiiiiiiiiiiii=e.asm.Ga).apply(null,arguments)};e.dynCall_jiiiiiiii=function(){return(e.dynCall_jiiiiiiii=e.asm.Ha).apply(null,arguments)};e.dynCall_ff=function(){return(e.dynCall_ff=e.asm.Ia).apply(null,arguments)};e.dynCall_jiiiiii=function(){return(e.dynCall_jiiiiii=e.asm.Ja).apply(null,arguments)};
+e.dynCall_jiiiii=function(){return(e.dynCall_jiiiii=e.asm.Ka).apply(null,arguments)};e.dynCall_iiijii=function(){return(e.dynCall_iiijii=e.asm.La).apply(null,arguments)};function Qc(a,b,c){var d=Y();try{Vc(a,b,c)}catch(f){Z(d);if(f!==f+0&&"longjmp"!==f)throw f;X(1,0)}}function Rc(a,b,c,d,f){var g=Y();try{Wc(a,b,c,d,f)}catch(h){Z(g);if(h!==h+0&&"longjmp"!==h)throw h;X(1,0)}}function Hc(a,b,c){var d=Y();try{return Yc(a,b,c)}catch(f){Z(d);if(f!==f+0&&"longjmp"!==f)throw f;X(1,0)}}
+function Pc(a,b){var c=Y();try{Uc(a,b)}catch(d){Z(c);if(d!==d+0&&"longjmp"!==d)throw d;X(1,0)}}function Oc(a){var b=Y();try{Tc(a)}catch(c){Z(b);if(c!==c+0&&"longjmp"!==c)throw c;X(1,0)}}function Gc(a,b){var c=Y();try{return Xc(a,b)}catch(d){Z(c);if(d!==d+0&&"longjmp"!==d)throw d;X(1,0)}}function Ic(a,b,c,d,f){var g=Y();try{return Zc(a,b,c,d,f)}catch(h){Z(g);if(h!==h+0&&"longjmp"!==h)throw h;X(1,0)}}
+function Kc(a,b,c,d,f,g,h,k,l,n){var p=Y();try{return ad(a,b,c,d,f,g,h,k,l,n)}catch(t){Z(p);if(t!==t+0&&"longjmp"!==t)throw t;X(1,0)}}function Jc(a,b,c,d,f,g,h,k,l){var n=Y();try{return $c(a,b,c,d,f,g,h,k,l)}catch(p){Z(n);if(p!==p+0&&"longjmp"!==p)throw p;X(1,0)}}function Nc(a,b,c,d,f,g){var h=Y();try{return dd(a,b,c,d,f,g)}catch(k){Z(h);if(k!==k+0&&"longjmp"!==k)throw k;X(1,0)}}
+function Lc(a,b,c,d,f,g,h,k){var l=Y();try{return bd(a,b,c,d,f,g,h,k)}catch(n){Z(l);if(n!==n+0&&"longjmp"!==n)throw n;X(1,0)}}function Mc(a,b,c){var d=Y();try{return cd(a,b,c)}catch(f){Z(d);if(f!==f+0&&"longjmp"!==f)throw f;X(1,0)}}var ed;Ra=function fd(){ed||gd();ed||(Ra=fd)};
+function gd(){function a(){if(!ed&&(ed=!0,e.calledRun=!0,!pa)){e.noFSInit||Qb||(Qb=!0,Pb(),e.stdin=e.stdin,e.stdout=e.stdout,e.stderr=e.stderr,e.stdin?Sb("stdin",e.stdin):Lb("/dev/tty","/dev/stdin"),e.stdout?Sb("stdout",null,e.stdout):Lb("/dev/tty","/dev/stdout"),e.stderr?Sb("stderr",null,e.stderr):Lb("/dev/tty1","/dev/stderr"),Mb("/dev/stdin","r"),Mb("/dev/stdout","w"),Mb("/dev/stderr","w"));Ga(Ia);vb=!1;Ga(Ja);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();Ka.unshift(b)}Ga(Ka)}}if(!(0<J)){if(e.preRun)for("function"==typeof e.preRun&&(e.preRun=[e.preRun]);e.preRun.length;)La();Ga(Ha);0<J||(e.setStatus?(e.setStatus("Running..."),setTimeout(function(){setTimeout(function(){e.setStatus("")},1);a()},1)):a())}}e.run=gd;if(e.preInit)for("function"==typeof e.preInit&&(e.preInit=[e.preInit]);0<e.preInit.length;)e.preInit.pop()();noExitRuntime=!0;gd();
+
+
+  return avif_enc.ready
+}
+);
+})();
+if (typeof exports === 'object' && typeof module === 'object')
+      module.exports = avif_enc;
+    else if (typeof define === 'function' && define['amd'])
+      define([], function() { return avif_enc; });
+    else if (typeof exports === 'object')
+      exports["avif_enc"] = avif_enc;
+    

codecs/avif/package.json

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

codecs/cpp.Dockerfile

@@ -1,4 +1,4 @@
-FROM emscripten/emsdk:1.39.19
+FROM emscripten/emsdk:1.40.0
 RUN apt-get update && apt-get install -qqy autoconf libtool pkg-config
 ENV CFLAGS "-Os -flto"
 ENV CXXFLAGS "${CFLAGS} -std=c++17"

codecs/jxl/.gitignore

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

codecs/jxl/Makefile

@@ -0,0 +1,67 @@
+CODEC_URL = https://gitlab.com/wg1/jpeg-xl.git
+CODEC_VERSION = 4d70bd58fbcb758b61446aba447fedd9177a00c9
+CODEC_DIR = node_modules/jxl
+CODEC_BUILD_DIR := $(CODEC_DIR)/build
+CODEC_OUT := $(CODEC_BUILD_DIR)/lib/libjxl.a
+
+OUT_JS = enc/jxl_enc.js dec/jxl_dec.js
+OUT_WASM = $(OUT_JS:.js=.wasm)
+
+.PHONY: all clean
+
+all: $(OUT_JS)
+
+%.js: %.cpp $(LIBAOM_OUT) $(CODEC_OUT)
+	$(CXX) \
+		-I $(CODEC_DIR) \
+		-I $(CODEC_DIR)/lib \
+		-I $(CODEC_DIR)/lib/include \
+		-I $(CODEC_BUILD_DIR)/lib/include \
+		-I $(CODEC_DIR)/third_party/highway \
+		-I $(CODEC_DIR)/third_party/skcms \
+		-I $(CODEC_DIR)/third_party/brunsli \
+		-I $(CODEC_DIR)/third_party/brunsli/c/include \
+		${CXXFLAGS} \
+		${LDFLAGS} \
+		--bind \
+		--closure 1 \
+		-s ALLOW_MEMORY_GROWTH=1 \
+		-s MAXIMUM_MEMORY=4GB \
+		-s MODULARIZE=1 \
+		-s 'EXPORT_NAME="$(basename $(@F))"' \
+		-o $@ \
+		$+ \
+		$(CODEC_BUILD_DIR)/artifacts/libbrunslienc-static.bc \
+		$(CODEC_BUILD_DIR)/artifacts/libbrunslicommon-static.bc \
+		$(CODEC_BUILD_DIR)/artifacts/libbrunslidec-static.bc \
+		$(CODEC_BUILD_DIR)/third_party/brotli/libbrotlidec-static.a \
+		$(CODEC_BUILD_DIR)/third_party/brotli/libbrotlienc-static.a \
+		$(CODEC_BUILD_DIR)/third_party/brotli/libbrotlicommon-static.a \
+		$(CODEC_BUILD_DIR)/third_party/libskcms.a \
+		$(CODEC_BUILD_DIR)/third_party/highway/libhwy.a
+
+$(CODEC_OUT): $(CODEC_DIR)/CMakeLists.txt
+	mkdir -p $(CODEC_BUILD_DIR)
+	cd $(CODEC_BUILD_DIR) && \
+	emcmake cmake ../ && \
+	$(MAKE) jxl-static
+
+$(CODEC_DIR)/CMakeLists.txt: $(CODEC_DIR)
+
+$(CODEC_DIR):
+	# The JXL repository doesn’t have version tags or anything yet,
+	# so we have to pin to a specific commit for now. This implies we
+	# can’t use --recursive, as we will change commit after checkout (it
+	# seems you can’t clone a specific commit directly), and it also means
+	# we can’t use --depth 1 because we want to change commits.
+	# The JXL code base also relies on submodules so we can’t just download
+	# a .tar.gz from GitLab.
+	mkdir -p $@
+	git clone $(CODEC_URL) $@
+	cd $@ && \
+	git reset --hard $(CODEC_VERSION) && \
+	git submodule update --init --recursive
+
+clean:
+	$(RM) $(OUT_JS) $(OUT_WASM)
+	$(MAKE) -C $(CODEC_BUILD_DIR) clean

codecs/jxl/dec/jxl_dec.cpp

@@ -0,0 +1,82 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+
+#include <jxl/decode.h>
+#include "lib/jxl/color_encoding_internal.h"
+
+#include "skcms.h"
+
+using namespace emscripten;
+
+thread_local const val Uint8ClampedArray = val::global("Uint8ClampedArray");
+thread_local const val ImageData = val::global("ImageData");
+
+#define EXPECT_EQ(a, b)     \
+  if ((a) != (b)) {         \
+    JxlDecoderDestroy(dec); \
+    return val::null();     \
+  }
+
+val decode(std::string data) {
+  JxlDecoder* dec = JxlDecoderCreate(nullptr);
+  EXPECT_EQ(JXL_DEC_SUCCESS,
+            JxlDecoderSubscribeEvents(
+                dec, JXL_DEC_BASIC_INFO | JXL_DEC_COLOR_ENCODING | JXL_DEC_FULL_IMAGE));
+  auto next_in = (const uint8_t*)data.c_str();
+  auto avail_in = data.size();
+  EXPECT_EQ(JXL_DEC_BASIC_INFO, JxlDecoderProcessInput(dec, &next_in, &avail_in));
+  size_t buffer_size;
+  const JxlPixelFormat format = {4, JXL_LITTLE_ENDIAN, JXL_TYPE_FLOAT};
+  EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderImageOutBufferSize(dec, &format, &buffer_size));
+  JxlBasicInfo info;
+  EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetBasicInfo(dec, &info));
+
+  EXPECT_EQ(JXL_DEC_COLOR_ENCODING, JxlDecoderProcessInput(dec, &next_in, &avail_in));
+  size_t icc_size;
+  EXPECT_EQ(JXL_DEC_SUCCESS,
+            JxlDecoderGetICCProfileSize(dec, JXL_COLOR_PROFILE_TARGET_DATA, &icc_size));
+  std::vector<uint8_t> icc_profile(icc_size);
+  EXPECT_EQ(JXL_DEC_SUCCESS,
+            JxlDecoderGetColorAsICCProfile(dec, JXL_COLOR_PROFILE_TARGET_DATA, icc_profile.data(),
+                                           icc_profile.size()));
+
+  std::unique_ptr<float[]> float_pixels(new float[(buffer_size + 3) / 4]);
+  EXPECT_EQ(JXL_DEC_SUCCESS,
+            JxlDecoderSetImageOutBuffer(
+                dec, &format, reinterpret_cast<uint8_t*>(float_pixels.get()), buffer_size));
+  EXPECT_EQ(JXL_DEC_FULL_IMAGE, JxlDecoderProcessInput(dec, &next_in, &avail_in));
+  JxlDecoderDestroy(dec);
+#undef EXPECT_EQ
+
+#define EXPECT_TRUE(a)  \
+  if (!(a)) {           \
+    return val::null(); \
+  }
+
+  std::unique_ptr<uint8_t[]> pixels(new uint8_t[info.xsize * info.ysize * 4]);
+  // Convert to sRGB.
+  skcms_ICCProfile jxl_profile;
+  // If the image is encoded in its original color space, the decoded data will be in the color
+  // space defined by the decoded ICC profile. Otherwise, it is in Linear sRGB. TODO: the decoded
+  // color profile should also be Linear sRGB if !uses_original_profile.
+  if (info.uses_original_profile) {
+    EXPECT_TRUE(skcms_Parse(icc_profile.data(), icc_profile.size(), &jxl_profile));
+  } else {
+    auto s = jxl::ColorEncoding::LinearSRGB(/*gray=*/false);
+    EXPECT_TRUE(s.CreateICC());
+    EXPECT_TRUE(skcms_Parse(s.ICC().data(), s.ICC().size(), &jxl_profile));
+  }
+  EXPECT_TRUE(skcms_Transform(
+      float_pixels.get(), skcms_PixelFormat_RGBA_ffff,
+      info.alpha_premultiplied ? skcms_AlphaFormat_PremulAsEncoded : skcms_AlphaFormat_Unpremul,
+      &jxl_profile, pixels.get(), skcms_PixelFormat_RGBA_8888, skcms_AlphaFormat_Unpremul,
+      skcms_sRGB_profile(), info.xsize * info.ysize));
+
+  return ImageData.new_(
+      Uint8ClampedArray.new_(typed_memory_view(info.xsize * info.ysize * 4, pixels.get())),
+      info.xsize, info.ysize);
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  function("decode", &decode);
+}

codecs/jxl/dec/jxl_dec.d.ts

@@ -0,0 +1,5 @@
+interface JXLModule extends EmscriptenWasm.Module {
+  decode(data: BufferSource): ImageData;
+}
+
+export default function(opts: EmscriptenWasm.ModuleOpts): JXLModule;

codecs/jxl/dec/jxl_dec.js

@@ -0,0 +1,69 @@
+
+var jxl_dec = (function() {
+  var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
+  if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
+  return (
+function(jxl_dec) {
+  jxl_dec = jxl_dec || {};
+
+
+var d;d||(d=typeof jxl_dec !== 'undefined' ? jxl_dec : {});var aa,ba;d.ready=new Promise(function(a,b){aa=a;ba=b});var r={},t;for(t in d)d.hasOwnProperty(t)&&(r[t]=d[t]);var ca="./this.program",u=!1,v=!1,da=!1,ea=!1;u="object"===typeof window;v="function"===typeof importScripts;da="object"===typeof process&&"object"===typeof process.versions&&"string"===typeof process.versions.node;ea=!u&&!da&&!v;var w="",x,z,fa,ha;
+if(da)w=v?require("path").dirname(w)+"/":__dirname+"/",x=function(a,b){fa||(fa=require("fs"));ha||(ha=require("path"));a=ha.normalize(a);return fa.readFileSync(a,b?null:"utf8")},z=function(a){a=x(a,!0);a.buffer||(a=new Uint8Array(a));a.buffer||A("Assertion failed: undefined");return a},1<process.argv.length&&(ca=process.argv[1].replace(/\\/g,"/")),process.argv.slice(2),process.on("uncaughtException",function(a){throw a;}),process.on("unhandledRejection",A),d.inspect=function(){return"[Emscripten Module object]"};
+else if(ea)"undefined"!=typeof read&&(x=function(a){return read(a)}),z=function(a){if("function"===typeof readbuffer)return new Uint8Array(readbuffer(a));a=read(a,"binary");"object"===typeof a||A("Assertion failed: undefined");return a},"undefined"!==typeof print&&("undefined"===typeof console&&(console={}),console.log=print,console.warn=console.error="undefined"!==typeof printErr?printErr:print);else if(u||v)v?w=self.location.href:document.currentScript&&(w=document.currentScript.src),_scriptDir&&
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+function ma(a,b,c){b>>>=0;var e=b+c;for(c=b;a[c>>>0]&&!(c>=e);)++c;if(16<c-b&&a.subarray&&la)return la.decode(a.subarray(b>>>0,c>>>0));for(e="";b<c;){var f=a[b++>>>0];if(f&128){var g=a[b++>>>0]&63;if(192==(f&224))e+=String.fromCharCode((f&31)<<6|g);else{var l=a[b++>>>0]&63;f=224==(f&240)?(f&15)<<12|g<<6|l:(f&7)<<18|g<<12|l<<6|a[b++>>>0]&63;65536>f?e+=String.fromCharCode(f):(f-=65536,e+=String.fromCharCode(55296|f>>10,56320|f&1023))}}else e+=String.fromCharCode(f)}return e}
+function na(a,b,c){var e=F;b>>>=0;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 l=a.charCodeAt(++f);g=65536+((g&1023)<<10)|l&1023}if(127>=g){if(b>=c)break;e[b++>>>0]=g}else{if(2047>=g){if(b+1>=c)break;e[b++>>>0]=192|g>>6}else{if(65535>=g){if(b+2>=c)break;e[b++>>>0]=224|g>>12}else{if(b+3>=c)break;e[b++>>>0]=240|g>>18;e[b++>>>0]=128|g>>12&63}e[b++>>>0]=128|g>>6&63}e[b++>>>0]=128|g&63}}e[b>>>0]=0}}
+var oa="undefined"!==typeof TextDecoder?new TextDecoder("utf-16le"):void 0;function pa(a,b){var c=a>>1;for(var e=c+b/2;!(c>=e)&&G[c>>>0];)++c;c<<=1;if(32<c-a&&oa)return oa.decode(F.subarray(a>>>0,c>>>0));c=0;for(e="";;){var f=H[a+2*c>>1>>>0];if(0==f||c==b/2)return e;++c;e+=String.fromCharCode(f)}}function qa(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var e=b;c=c<2*a.length?c/2:a.length;for(var f=0;f<c;++f)H[b>>1>>>0]=a.charCodeAt(f),b+=2;H[b>>1>>>0]=0;return b-e}
+function ra(a){return 2*a.length}function sa(a,b){for(var c=0,e="";!(c>=b/4);){var f=I[a+4*c>>2>>>0];if(0==f)break;++c;65536<=f?(f-=65536,e+=String.fromCharCode(55296|f>>10,56320|f&1023)):e+=String.fromCharCode(f)}return e}function ta(a,b,c){b>>>=0;void 0===c&&(c=2147483647);if(4>c)return 0;var e=b;c=e+c-4;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var l=a.charCodeAt(++f);g=65536+((g&1023)<<10)|l&1023}I[b>>2>>>0]=g;b+=4;if(b+4>c)break}I[b>>2>>>0]=0;return b-e}
+function ua(a){for(var b=0,c=0;c<a.length;++c){var e=a.charCodeAt(c);55296<=e&&57343>=e&&++c;b+=4}return b}var J,L,F,H,G,I,M,va,wa;function xa(a){J=a;d.HEAP8=L=new Int8Array(a);d.HEAP16=H=new Int16Array(a);d.HEAP32=I=new Int32Array(a);d.HEAPU8=F=new Uint8Array(a);d.HEAPU16=G=new Uint16Array(a);d.HEAPU32=M=new Uint32Array(a);d.HEAPF32=va=new Float32Array(a);d.HEAPF64=wa=new Float64Array(a)}var ya=d.INITIAL_MEMORY||16777216;d.wasmMemory?E=d.wasmMemory:E=new WebAssembly.Memory({initial:ya/65536,maximum:65536});
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+function A(a){if(d.onAbort)d.onAbort(a);B(a);ka=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");ba(a);throw a;}function Ha(a){var b=R;return String.prototype.startsWith?b.startsWith(a):0===b.indexOf(a)}function Ia(){return Ha("data:application/octet-stream;base64,")}var R="jxl_dec.wasm";if(!Ia()){var Ja=R;R=d.locateFile?d.locateFile(Ja,w):w+Ja}
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+function Na(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 Oa=void 0;function T(a){for(var b="";F[a>>>0];)b+=Oa[F[a++>>>0]];return b}var U={},V={},Pa={};function Qa(a){if(void 0===a)return"_unknown";a=a.replace(/[^a-zA-Z0-9_]/g,"$");var b=a.charCodeAt(0);return 48<=b&&57>=b?"_"+a:a}
+function Ra(a,b){a=Qa(a);return(new Function("body","return function "+a+'() {\n    "use strict";    return body.apply(this, arguments);\n};\n'))(b)}function Sa(a){var b=Error,c=Ra(a,function(e){this.name=a;this.message=e;e=Error(e).stack;void 0!==e&&(this.stack=this.toString()+"\n"+e.replace(/^Error(:[^\n]*)?\n/,""))});c.prototype=Object.create(b.prototype);c.prototype.constructor=c;c.prototype.toString=function(){return void 0===this.message?this.name:this.name+": "+this.message};return c}
+var Ta=void 0;function W(a){throw new Ta(a);}var Ua=void 0;function Va(a,b){function c(h){h=b(h);if(h.length!==e.length)throw new Ua("Mismatched type converter count");for(var k=0;k<e.length;++k)X(e[k],h[k])}var e=[];e.forEach(function(h){Pa[h]=a});var f=Array(a.length),g=[],l=0;a.forEach(function(h,k){V.hasOwnProperty(h)?f[k]=V[h]:(g.push(h),U.hasOwnProperty(h)||(U[h]=[]),U[h].push(function(){f[k]=V[h];++l;l===g.length&&c(f)}))});0===g.length&&c(f)}
+function X(a,b,c){c=c||{};if(!("argPackAdvance"in b))throw new TypeError("registerType registeredInstance requires argPackAdvance");var e=b.name;a||W('type "'+e+'" must have a positive integer typeid pointer');if(V.hasOwnProperty(a)){if(c.ea)return;W("Cannot register type '"+e+"' twice")}V[a]=b;delete Pa[a];U.hasOwnProperty(a)&&(b=U[a],delete U[a],b.forEach(function(f){f()}))}var Wa=[],Y=[{},{value:void 0},{value:null},{value:!0},{value:!1}];
+function Xa(a){4<a&&0===--Y[a].$&&(Y[a]=void 0,Wa.push(a))}function Ya(a){switch(a){case void 0:return 1;case null:return 2;case !0:return 3;case !1:return 4;default:var b=Wa.length?Wa.pop():Y.length;Y[b]={$:1,value:a};return b}}function Za(a){return this.fromWireType(M[a>>>2])}function $a(a){if(null===a)return"null";var b=typeof a;return"object"===b||"array"===b||"function"===b?a.toString():""+a}
+function cb(a,b){switch(b){case 2:return function(c){return this.fromWireType(va[c>>>2])};case 3:return function(c){return this.fromWireType(wa[c>>>3])};default:throw new TypeError("Unknown float type: "+a);}}function db(a){var b=Function;if(!(b instanceof Function))throw new TypeError("new_ called with constructor type "+typeof b+" which is not a function");var c=Ra(b.name||"unknownFunctionName",function(){});c.prototype=b.prototype;c=new c;a=b.apply(c,a);return a instanceof Object?a:c}
+function eb(a){for(;a.length;){var b=a.pop();a.pop()(b)}}function fb(a,b){var c=d;if(void 0===c[a].X){var e=c[a];c[a]=function(){c[a].X.hasOwnProperty(arguments.length)||W("Function '"+b+"' called with an invalid number of arguments ("+arguments.length+") - expects one of ("+c[a].X+")!");return c[a].X[arguments.length].apply(this,arguments)};c[a].X=[];c[a].X[e.ba]=e}}
+function gb(a,b,c){d.hasOwnProperty(a)?((void 0===c||void 0!==d[a].X&&void 0!==d[a].X[c])&&W("Cannot register public name '"+a+"' twice"),fb(a,a),d.hasOwnProperty(c)&&W("Cannot register multiple overloads of a function with the same number of arguments ("+c+")!"),d[a].X[c]=b):(d[a]=b,void 0!==c&&(d[a].ga=c))}function hb(a,b){for(var c=[],e=0;e<a;e++)c.push(I[(b>>2)+e>>>0]);return c}
+function ib(a,b){a=T(a);var c=d["dynCall_"+a];for(var e=[],f=1;f<a.length;++f)e.push("a"+f);f="return function dynCall_"+(a+"_"+b)+"("+e.join(", ")+") {\n";f+="    return dynCall(rawFunction"+(e.length?", ":"")+e.join(", ")+");\n";c=(new Function("dynCall","rawFunction",f+"};\n"))(c,b);"function"!==typeof c&&W("unknown function pointer with signature "+a+": "+b);return c}var jb=void 0;function kb(a){a=lb(a);var b=T(a);Z(a);return b}
+function mb(a,b){function c(g){f[g]||V[g]||(Pa[g]?Pa[g].forEach(c):(e.push(g),f[g]=!0))}var e=[],f={};b.forEach(c);throw new jb(a+": "+e.map(kb).join([", "]));}function nb(a,b,c){switch(b){case 0:return c?function(e){return L[e>>>0]}:function(e){return F[e>>>0]};case 1:return c?function(e){return H[e>>>1]}:function(e){return G[e>>>1]};case 2:return c?function(e){return I[e>>>2]}:function(e){return M[e>>>2]};default:throw new TypeError("Unknown integer type: "+a);}}var ob={};
+function pb(){return"object"===typeof globalThis?globalThis:Function("return this")()}function qb(a,b){var c=V[a];void 0===c&&W(b+" has unknown type "+kb(a));return c}var rb={},sb={};function tb(){if(!ub){var a={USER:"web_user",LOGNAME:"web_user",PATH:"/",PWD:"/",HOME:"/home/web_user",LANG:("object"===typeof navigator&&navigator.languages&&navigator.languages[0]||"C").replace("-","_")+".UTF-8",_:ca||"./this.program"},b;for(b in sb)a[b]=sb[b];var c=[];for(b in a)c.push(b+"="+a[b]);ub=c}return ub}
+for(var ub,vb=[null,[],[]],wb=Array(256),xb=0;256>xb;++xb)wb[xb]=String.fromCharCode(xb);Oa=wb;Ta=d.BindingError=Sa("BindingError");Ua=d.InternalError=Sa("InternalError");d.count_emval_handles=function(){for(var a=0,b=5;b<Y.length;++b)void 0!==Y[b]&&++a;return a};d.get_first_emval=function(){for(var a=5;a<Y.length;++a)if(void 0!==Y[a])return Y[a];return null};jb=d.UnboundTypeError=Sa("UnboundTypeError");
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+if(C)m+="runDestructors(destructors);\n";else for(n=y?1:2;n<k.length;++n)q=1===n?"thisWired":"arg"+(n-2)+"Wired",null!==k[n].Y&&(m+=q+"_dtor("+q+"); // "+k[n].name+"\n",K.push(q+"_dtor"),p.push(k[n].Y));ab&&(m+="var ret = retType.fromWireType(rv);\nreturn ret;\n");K.push(m+"}\n");k=db(K).apply(null,p);n=b-1;if(!d.hasOwnProperty(h))throw new Ua("Replacing nonexistant public symbol");void 0!==d[h].X&&void 0!==n?d[h].X[n]=k:(d[h]=k,d[h].ba=n);return[]})},b:function(a,b,c,e,f){function g(m){return m}
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+
+
+  return jxl_dec.ready
+}
+);
+})();
+if (typeof exports === 'object' && typeof module === 'object')
+      module.exports = jxl_dec;
+    else if (typeof define === 'function' && define['amd'])
+      define([], function() { return jxl_dec; });
+    else if (typeof exports === 'object')
+      exports["jxl_dec"] = jxl_dec;
+    

codecs/jxl/enc/jxl_enc.cpp

@@ -0,0 +1,60 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+
+#include "lib/jxl/enc_file.h"
+#include "lib/jxl/external_image.h"
+
+using namespace emscripten;
+
+thread_local const val Uint8Array = val::global("Uint8Array");
+
+struct JXLOptions {
+  // 1 = slowest
+  // 7 = fastest
+  int speed;
+  float quality;
+};
+
+val encode(std::string image, int width, int height, JXLOptions options) {
+  jxl::CompressParams cparams;
+  jxl::PassesEncoderState passes_enc_state;
+  jxl::CodecInOut io;
+  jxl::PaddedBytes bytes;
+  jxl::ImageBundle* main = &io.Main();
+
+  cparams.speed_tier = static_cast<jxl::SpeedTier>(options.speed);
+  cparams.butteraugli_distance = options.quality;
+
+  io.metadata.SetAlphaBits(8);
+
+  uint8_t* inBuffer = (uint8_t*)image.c_str();
+
+  auto result = jxl::ConvertImage(
+      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_alpha=*/8, /*bits_per_sample=*/8,
+      /*big_endian=*/false, /*flipped_y=*/false, /*pool=*/nullptr, main);
+
+  if (!result) {
+    return val::null();
+  }
+
+  auto js_result = val::null();
+  if (EncodeFile(cparams, &io, &passes_enc_state, &bytes)) {
+    js_result = Uint8Array.new_(typed_memory_view(bytes.size(), bytes.data()));
+  }
+
+  // TODO: Any freeing that needs to be done?
+  //
+  return js_result;
+}
+
+void free_result() {}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  value_object<JXLOptions>("JXLOptions")
+      .field("speed", &JXLOptions::speed)
+      .field("quality", &JXLOptions::quality);
+
+  function("encode", &encode);
+}

codecs/jxl/enc/jxl_enc.d.ts

@@ -0,0 +1,8 @@
+import { EncodeOptions } from '../../src/codecs/jxl/encoder-meta';
+
+interface JXLModule extends EmscriptenWasm.Module {
+  encode(data: BufferSource, width: number, height: number, options: EncodeOptions): Uint8Array;
+}
+
+
+export default function(opts: EmscriptenWasm.ModuleOpts): JXLModule;

codecs/jxl/enc/jxl_enc.js

@@ -0,0 +1,117 @@
+
+var jxl_enc = (function() {
+  var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
+  if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
+  return (
+function(jxl_enc) {
+  jxl_enc = jxl_enc || {};
+
+
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+
+
+  return jxl_enc.ready
+}
+);
+})();
+if (typeof exports === 'object' && typeof module === 'object')
+      module.exports = jxl_enc;
+    else if (typeof define === 'function' && define['amd'])
+      define([], function() { return jxl_enc; });
+    else if (typeof exports === 'object')
+      exports["jxl_enc"] = jxl_enc;
+    

codecs/jxl/package.json

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

codecs/mozjpeg/Makefile

@@ -2,7 +2,7 @@ CODEC_URL := https://github.com/mozilla/mozjpeg/archive/v3.3.1.tar.gz
 CODEC_DIR := node_modules/mozjpeg
 CODEC_OUT_RELATIVE := .libs/libjpeg.a rdswitch.o
 CODEC_OUT := $(addprefix $(CODEC_DIR)/, $(CODEC_OUT_RELATIVE))
-OUT_JS := mozjpeg_enc.js
+OUT_JS := enc/mozjpeg_enc.js dec/mozjpeg_dec.js
 OUT_WASM := $(OUT_JS:.js=.wasm)
 
 .PHONY: all clean

codecs/mozjpeg/dec/example.html

@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<script src="mozjpeg_dec.js"></script>
+<script>
+  const module = mozjpeg_dec({
+    async onRuntimeInitialized() {
+      const image = await fetch("./original.jpg").then(r => r.arrayBuffer());
+      const result = this.decode(image);
+
+      const canvas = document.createElement("canvas");
+      canvas.width = result.width;
+      canvas.height = result.height;
+      // Draw image onto canvas
+      const ctx = canvas.getContext("2d");
+      ctx.putImageData(result, 0, 0);
+      document.body.append(canvas);
+    }
+  });
+</script>

codecs/mozjpeg/dec/mozjpeg_dec.cpp

@@ -0,0 +1,59 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include "config.h"
+#include "jpeglib.h"
+
+extern "C" {
+#include "cdjpeg.h"
+}
+
+using namespace emscripten;
+
+thread_local const val Uint8ClampedArray = val::global("Uint8ClampedArray");
+thread_local const val ImageData = val::global("ImageData");
+
+val decode(std::string image_in) {
+  uint8_t* image_buffer = (uint8_t*)image_in.c_str();
+
+  jpeg_decompress_struct cinfo;
+  jpeg_error_mgr jerr;
+  // Initialize the JPEG decompression object with default error handling.
+  cinfo.err = jpeg_std_error(&jerr);
+  jpeg_create_decompress(&cinfo);
+
+  jpeg_mem_src(&cinfo, image_buffer, image_in.length());
+  // Read file header, set default decompression parameters
+  jpeg_read_header(&cinfo, TRUE);
+  // Force RGBA decoding, even for grayscale images
+  cinfo.out_color_space = JCS_EXT_RGBA;
+  jpeg_start_decompress(&cinfo);
+
+  // Prepare output buffer
+  size_t output_size = cinfo.output_width * cinfo.output_height * 4;
+  std::vector<uint8_t> output_buffer(output_size);
+  auto stride = cinfo.output_width * 4;
+
+  // Process data
+  auto buffer_lines_available = cinfo.output_height;
+  while (cinfo.output_scanline < cinfo.output_height) {
+    uint8_t* ptr = &output_buffer[stride * cinfo.output_scanline];
+    auto lines_read = jpeg_read_scanlines(&cinfo, &ptr, buffer_lines_available);
+    buffer_lines_available -= lines_read;
+  }
+  jpeg_finish_decompress(&cinfo);
+
+  // Step 7: release JPEG compression object
+
+  auto data = Uint8ClampedArray.new_(typed_memory_view(output_buffer.size(), output_buffer.data()));
+  auto js_result = ImageData.new_(data, cinfo.output_width, cinfo.output_height);
+
+  // This is an important step since it will release a good deal of memory.
+  jpeg_destroy_decompress(&cinfo);
+
+  // And we're done!
+  return js_result;
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  function("decode", &decode);
+}

codecs/mozjpeg/dec/mozjpeg_dec.js

@@ -0,0 +1,69 @@
+
+var mozjpeg_dec = (function() {
+  var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
+  if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
+  return (
+function(mozjpeg_dec) {
+  mozjpeg_dec = mozjpeg_dec || {};
+
+
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+d.dynCall_viiiiii=function(){return(d.dynCall_viiiiii=d.asm.R).apply(null,arguments)};var Ab;function ia(a){this.name="ExitStatus";this.message="Program terminated with exit("+a+")";this.status=a}R=function Bb(){Ab||Cb();Ab||(R=Bb)};
+function Cb(){function a(){if(!Ab&&(Ab=!0,d.calledRun=!0,!la)){O(Ba);O(Ca);aa(d);if(d.onRuntimeInitialized)d.onRuntimeInitialized();if(d.postRun)for("function"==typeof d.postRun&&(d.postRun=[d.postRun]);d.postRun.length;){var b=d.postRun.shift();Da.unshift(b)}O(Da)}}if(!(0<Q)){if(d.preRun)for("function"==typeof d.preRun&&(d.preRun=[d.preRun]);d.preRun.length;)Ea();O(Aa);0<Q||(d.setStatus?(d.setStatus("Running..."),setTimeout(function(){setTimeout(function(){d.setStatus("")},1);a()},1)):a())}}
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+
+
+  return mozjpeg_dec.ready
+}
+);
+})();
+if (typeof exports === 'object' && typeof module === 'object')
+      module.exports = mozjpeg_dec;
+    else if (typeof define === 'function' && define['amd'])
+      define([], function() { return mozjpeg_dec; });
+    else if (typeof exports === 'object')
+      exports["mozjpeg_dec"] = mozjpeg_dec;
+    

codecs/mozjpeg/enc/mozjpeg_enc.cpp

@@ -1,10 +1,5 @@
 #include <emscripten/bind.h>
 #include <emscripten/val.h>
-#include <inttypes.h>
-#include <setjmp.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include "config.h"
 #include "jpeglib.h"
 
@@ -14,12 +9,6 @@ extern "C" {
 
 using namespace emscripten;
 
-// MozJPEG doesn’t expose a numeric version, so I have to do some fun C macro
-// hackery to turn it into a string. More details here:
-// https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html
-#define xstr(s) str(s)
-#define str(s) #s
-
 struct MozJpegOptions {
   int quality;
   bool baseline;
@@ -39,22 +28,6 @@ struct MozJpegOptions {
   int chroma_quality;
 };
 
-int version() {
-  char buffer[] = xstr(MOZJPEG_VERSION);
-  int version = 0;
-  int last_index = 0;
-  for (int i = 0; i < strlen(buffer); i++) {
-    if (buffer[i] == '.') {
-      buffer[i] = '\0';
-      version = version << 8 | atoi(&buffer[last_index]);
-      buffer[i] = '.';
-      last_index = i + 1;
-    }
-  }
-  version = version << 8 | atoi(&buffer[last_index]);
-  return version;
-}
-
 thread_local const val Uint8Array = val::global("Uint8Array");
 
 val encode(std::string image_in, int image_width, int image_height, MozJpegOptions opts) {
@@ -228,6 +201,5 @@ EMSCRIPTEN_BINDINGS(my_module) {
       .field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
       .field("chroma_quality", &MozJpegOptions::chroma_quality);
 
-  function("version", &version);
   function("encode", &encode);
 }

codecs/mozjpeg/enc/mozjpeg_enc.js

@@ -7,56 +7,56 @@ function(mozjpeg_enc) {
   mozjpeg_enc = mozjpeg_enc || {};
 
 
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+B:function(a){if(0===a)return db(qb());var b=pb[a];a=void 0===b?U(a):b;return db(qb()[a])},j:function(a){4<a&&(X[a].aa+=1)},n:function(a,b,c,e){a||V("Cannot use deleted val. handle = "+a);a=X[a].value;var f=sb[b];if(!f){f="";for(var g=0;g<b;++g)f+=(0!==g?", ":"")+"arg"+g;var l="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";for(g=0;g<b;++g)l+="var argType"+g+" = requireRegisteredType(Module['HEAP32'][(argTypes >>> 2) + "+g+'], "parameter '+g+'");\nvar arg'+g+" = argType"+
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+e)-L.byteLength+65535>>>16);Aa(H.buffer);var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},s:function(a,b){var c=0;ub().forEach(function(e,f){var g=b+c;f=K[a+4*f>>2]=g;for(g=0;g<e.length;++g)M[f++>>0]=e.charCodeAt(g);M[f>>0]=0;c+=e.length+1});return 0},t:function(a,b){var c=ub();K[a>>2]=c.length;var e=0;c.forEach(function(f){e+=f.length+1});K[b>>2]=e;return 0},z:function(a){if(!noExitRuntime&&(ma=!0,d.onExit))d.onExit(a);u(a,new ia(a))},u:function(){return 0},o:function(){},f:function(a,
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+f),!1}(function(){if(G||"function"!==typeof WebAssembly.instantiateStreaming||Ka()||Ja("file://")||"function"!==typeof fetch)return c(b);fetch(Q,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,e).then(b,function(g){E("wasm streaming compile failed: "+g);E("falling back to ArrayBuffer instantiation");return c(b)})})})();return{}})();
+var Oa=d.___wasm_call_ctors=function(){return(Oa=d.___wasm_call_ctors=d.asm.D).apply(null,arguments)},Z=d._free=function(){return(Z=d._free=d.asm.E).apply(null,arguments)},zb=d._malloc=function(){return(zb=d._malloc=d.asm.F).apply(null,arguments)},mb=d.___getTypeName=function(){return(mb=d.___getTypeName=d.asm.G).apply(null,arguments)};d.___embind_register_native_and_builtin_types=function(){return(d.___embind_register_native_and_builtin_types=d.asm.H).apply(null,arguments)};
+d.dynCall_i=function(){return(d.dynCall_i=d.asm.I).apply(null,arguments)};d.dynCall_vi=function(){return(d.dynCall_vi=d.asm.J).apply(null,arguments)};d.dynCall_iii=function(){return(d.dynCall_iii=d.asm.K).apply(null,arguments)};d.dynCall_viii=function(){return(d.dynCall_viii=d.asm.L).apply(null,arguments)};d.dynCall_iiiiii=function(){return(d.dynCall_iiiiii=d.asm.M).apply(null,arguments)};d.dynCall_viiiii=function(){return(d.dynCall_viiiii=d.asm.N).apply(null,arguments)};
+d.dynCall_vii=function(){return(d.dynCall_vii=d.asm.O).apply(null,arguments)};d.dynCall_ii=function(){return(d.dynCall_ii=d.asm.P).apply(null,arguments)};d.dynCall_iiiiiii=function(){return(d.dynCall_iiiiiii=d.asm.Q).apply(null,arguments)};d.dynCall_iiiii=function(){return(d.dynCall_iiiii=d.asm.R).apply(null,arguments)};d.dynCall_iiii=function(){return(d.dynCall_iiii=d.asm.S).apply(null,arguments)};d.dynCall_viiiiiiii=function(){return(d.dynCall_viiiiiiii=d.asm.T).apply(null,arguments)};
+d.dynCall_viiii=function(){return(d.dynCall_viiii=d.asm.U).apply(null,arguments)};d.dynCall_viiiiiii=function(){return(d.dynCall_viiiiiii=d.asm.V).apply(null,arguments)};d.dynCall_jiji=function(){return(d.dynCall_jiji=d.asm.W).apply(null,arguments)};d.dynCall_viiiiii=function(){return(d.dynCall_viiiiii=d.asm.X).apply(null,arguments)};var Bb;function ia(a){this.name="ExitStatus";this.message="Program terminated with exit("+a+")";this.status=a}P=function Cb(){Bb||Db();Bb||(P=Cb)};
+function Db(){function a(){if(!Bb&&(Bb=!0,d.calledRun=!0,!ma)){Ca(Ea);Ca(Fa);aa(d);if(d.onRuntimeInitialized)d.onRuntimeInitialized();if(d.postRun)for("function"==typeof d.postRun&&(d.postRun=[d.postRun]);d.postRun.length;){var b=d.postRun.shift();Ga.unshift(b)}Ca(Ga)}}if(!(0<O)){if(d.preRun)for("function"==typeof d.preRun&&(d.preRun=[d.preRun]);d.preRun.length;)Ha();Ca(Da);0<O||(d.setStatus?(d.setStatus("Running..."),setTimeout(function(){setTimeout(function(){d.setStatus("")},1);a()},1)):a())}}
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   return mozjpeg_enc.ready

codecs/webp/dec/webp_dec.cpp

@@ -17,7 +17,7 @@ val decode(std::string buffer) {
   int width, height;
   std::unique_ptr<uint8_t[]> rgba(
       WebPDecodeRGBA((const uint8_t*)buffer.c_str(), buffer.size(), &width, &height));
-  return ImageData.new_(Uint8ClampedArray.new_(typed_memory_view(width * height * 4, rgba.get())), width, height);
+  return rgba ? ImageData.new_(Uint8ClampedArray.new_(typed_memory_view(width * height * 4, rgba.get())), width, height) : val::null();
 }
 
 EMSCRIPTEN_BINDINGS(my_module) {

codecs/webp/dec/webp_dec.d.ts

@@ -1,5 +1,5 @@
 interface WebPModule extends EmscriptenWasm.Module {
-  decode(data: BufferSource): ImageData;
+  decode(data: BufferSource): ImageData | null;
 }
 
 export default function(opts: EmscriptenWasm.ModuleOpts): WebPModule;

codecs/webp/dec/webp_dec.js

@@ -7,23 +7,23 @@ function(webp_dec) {
   webp_dec = webp_dec || {};
 
 
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+var d;d||(d=typeof webp_dec !== 'undefined' ? webp_dec : {});var aa,ba;d.ready=new Promise(function(a,b){aa=a;ba=b});var t={},u;for(u in d)d.hasOwnProperty(u)&&(t[u]=d[u]);var v=!1,w=!1,ca=!1,da=!1;v="object"===typeof window;w="function"===typeof importScripts;ca="object"===typeof process&&"object"===typeof process.versions&&"string"===typeof process.versions.node;da=!v&&!ca&&!w;var x="",z,A,ea,fa;
+if(ca)x=w?require("path").dirname(x)+"/":__dirname+"/",z=function(a,b){ea||(ea=require("fs"));fa||(fa=require("path"));a=fa.normalize(a);return ea.readFileSync(a,b?null:"utf8")},A=function(a){a=z(a,!0);a.buffer||(a=new Uint8Array(a));a.buffer||B("Assertion failed: undefined");return a},1<process.argv.length&&process.argv[1].replace(/\\/g,"/"),process.argv.slice(2),process.on("uncaughtException",function(a){throw a;}),process.on("unhandledRejection",B),d.inspect=function(){return"[Emscripten Module object]"};
+else if(da)"undefined"!=typeof read&&(z=function(a){return read(a)}),A=function(a){if("function"===typeof readbuffer)return new Uint8Array(readbuffer(a));a=read(a,"binary");"object"===typeof a||B("Assertion failed: undefined");return a},"undefined"!==typeof print&&("undefined"===typeof console&&(console={}),console.log=print,console.warn=console.error="undefined"!==typeof printErr?printErr:print);else if(v||w)w?x=self.location.href:document.currentScript&&(x=document.currentScript.src),_scriptDir&&
+(x=_scriptDir),0!==x.indexOf("blob:")?x=x.substr(0,x.lastIndexOf("/")+1):x="",z=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.send(null);return b.responseText},w&&(A=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)});d.print||console.log.bind(console);var C=d.printErr||console.warn.bind(console);for(u in t)t.hasOwnProperty(u)&&(d[u]=t[u]);t=null;var D;d.wasmBinary&&(D=d.wasmBinary);var noExitRuntime;
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 function ma(a,b){var c=a>>1;for(var e=c+b/2;!(c>=e)&&G[c];)++c;c<<=1;if(32<c-a&&la)return la.decode(F.subarray(a,c));c=0;for(e="";;){var f=H[a+2*c>>1];if(0==f||c==b/2)return e;++c;e+=String.fromCharCode(f)}}function na(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var e=b;c=c<2*a.length?c/2:a.length;for(var f=0;f<c;++f)H[b>>1]=a.charCodeAt(f),b+=2;H[b>>1]=0;return b-e}function oa(a){return 2*a.length}
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 function ra(a){for(var b=0,c=0;c<a.length;++c){var e=a.charCodeAt(c);55296<=e&&57343>=e&&++c;b+=4}return b}var J,sa,F,H,G,I,L,ta,ua;function va(a){J=a;d.HEAP8=sa=new Int8Array(a);d.HEAP16=H=new Int16Array(a);d.HEAP32=I=new Int32Array(a);d.HEAPU8=F=new Uint8Array(a);d.HEAPU16=G=new Uint16Array(a);d.HEAPU32=L=new Uint32Array(a);d.HEAPF32=ta=new Float32Array(a);d.HEAPF64=ua=new Float64Array(a)}var wa=d.INITIAL_MEMORY||16777216;d.wasmMemory?E=d.wasmMemory:E=new WebAssembly.Memory({initial:wa/65536,maximum:32768});
 E&&(J=E.buffer);wa=J.byteLength;va(J);I[3260]=5256080;function M(a){for(;0<a.length;){var b=a.shift();if("function"==typeof b)b(d);else{var c=b.P;"number"===typeof c?void 0===b.L?d.dynCall_v(c):d.dynCall_vi(c,b.L):c(void 0===b.L?null:b.L)}}}var xa=[],ya=[],za=[],Aa=[];function Ba(){var a=d.preRun.shift();xa.unshift(a)}var N=0,Ca=null,P=null;d.preloadedImages={};d.preloadedAudios={};
-function B(a){if(d.onAbort)d.onAbort(a);fa(a);C(a);ia=!0;throw new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");}function Da(a){var b=Q;return String.prototype.startsWith?b.startsWith(a):0===b.indexOf(a)}function Ea(){return Da("data:application/octet-stream;base64,")}var Q="webp_dec.wasm";if(!Ea()){var Fa=Q;Q=d.locateFile?d.locateFile(Fa,x):x+Fa}
+function B(a){if(d.onAbort)d.onAbort(a);C(a);ia=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");ba(a);throw a;}function Da(a){var b=Q;return String.prototype.startsWith?b.startsWith(a):0===b.indexOf(a)}function Ea(){return Da("data:application/octet-stream;base64,")}var Q="webp_dec.wasm";if(!Ea()){var Fa=Q;Q=d.locateFile?d.locateFile(Fa,x):x+Fa}
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 function Ma(a,b){a=La(a);return(new Function("body","return function "+a+'() {\n    "use strict";    return body.apply(this, arguments);\n};\n'))(b)}function Na(a){var b=Error,c=Ma(a,function(e){this.name=a;this.message=e;e=Error(e).stack;void 0!==e&&(this.stack=this.toString()+"\n"+e.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}
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 function bb(a,b,c){d.hasOwnProperty(a)?((void 0===c||void 0!==d[a].J&&void 0!==d[a].J[c])&&W("Cannot register public name '"+a+"' twice"),ab(a,a),d.hasOwnProperty(c)&&W("Cannot register multiple overloads of a function with the same number of arguments ("+c+")!"),d[a].J[c]=b):(d[a]=b,void 0!==c&&(d[a].T=c))}function cb(a,b){for(var c=[],e=0;e<a;e++)c.push(I[(b>>2)+e]);return c}
@@ -32,18 +32,18 @@ function hb(a,b){function c(g){f[g]||U[g]||(V[g]?V[g].forEach(c):(e.push(g),f[g]
 function kb(){return"object"===typeof globalThis?globalThis:Function("return this")()}function lb(a,b){var c=U[a];void 0===c&&W(b+" has unknown type "+fb(a));return c}for(var mb={},nb=Array(256),ob=0;256>ob;++ob)nb[ob]=String.fromCharCode(ob);Ka=nb;Oa=d.BindingError=Na("BindingError");Pa=d.InternalError=Na("InternalError");d.count_emval_handles=function(){for(var a=0,b=5;b<Y.length;++b)void 0!==Y[b]&&++a;return a};
 d.get_first_emval=function(){for(var a=5;a<Y.length;++a)if(void 0!==Y[a])return Y[a];return null};eb=d.UnboundTypeError=Na("UnboundTypeError");
 var qb={m:function(a){return pb(a)},i:function(){},l:function(a){"uncaught_exception"in R?R.N++:R.N=1;throw a;},j:function(a,b,c,e,f){var g=Ja(c);b=S(b);X(a,{name:b,fromWireType:function(n){return!!n},toWireType:function(n,k){return k?e:f},argPackAdvance:8,readValueFromPointer:function(n){if(1===c)var k=sa;else if(2===c)k=H;else if(4===c)k=I;else throw new TypeError("Unknown boolean type size: "+b);return this.fromWireType(k[n>>g])},K:null})},r:function(a,b){b=S(b);X(a,{name:b,fromWireType:function(c){var e=
-Y[c].value;Sa(c);return e},toWireType:function(c,e){return Va(e)},argPackAdvance:8,readValueFromPointer:Wa,K:null})},g:function(a,b,c){c=Ja(c);b=S(b);X(a,{name:b,fromWireType:function(e){return e},toWireType:function(e,f){if("number"!==typeof f&&"boolean"!==typeof f)throw new TypeError('Cannot convert "'+Xa(f)+'" to '+this.name);return f},argPackAdvance:8,readValueFromPointer:Ya(b,c),K:null})},e:function(a,b,c,e,f,g){var n=cb(b,c);a=S(a);f=db(e,f);bb(a,function(){hb("Cannot call "+a+" due to unbound types",
-n)},b-1);Qa(n,function(k){var h=[k[0],null].concat(k.slice(1)),p=k=a,q=f,m=h.length;2>m&&W("argTypes array size mismatch! Must at least get return value and 'this' types!");for(var r=null!==h[1]&&!1,y=!1,l=1;l<h.length;++l)if(null!==h[l]&&void 0===h[l].K){y=!0;break}var Ta="void"!==h[0].name,K="",O="";for(l=0;l<m-2;++l)K+=(0!==l?", ":"")+"arg"+l,O+=(0!==l?", ":"")+"arg"+l+"Wired";p="return function "+La(p)+"("+K+") {\nif (arguments.length !== "+(m-2)+") {\nthrowBindingError('function "+p+" called with ' + arguments.length + ' arguments, expected "+
-(m-2)+" args!');\n}\n";y&&(p+="var destructors = [];\n");var Ua=y?"destructors":"null";K="throwBindingError invoker fn runDestructors retType classParam".split(" ");q=[W,q,g,$a,h[0],h[1]];r&&(p+="var thisWired = classParam.toWireType("+Ua+", this);\n");for(l=0;l<m-2;++l)p+="var arg"+l+"Wired = argType"+l+".toWireType("+Ua+", arg"+l+"); // "+h[l+2].name+"\n",K.push("argType"+l),q.push(h[l+2]);r&&(O="thisWired"+(0<O.length?", ":"")+O);p+=(Ta?"var rv = ":"")+"invoker(fn"+(0<O.length?", ":"")+O+");\n";
-if(y)p+="runDestructors(destructors);\n";else for(l=r?1:2;l<h.length;++l)m=1===l?"thisWired":"arg"+(l-2)+"Wired",null!==h[l].K&&(p+=m+"_dtor("+m+"); // "+h[l].name+"\n",K.push(m+"_dtor"),q.push(h[l].K));Ta&&(p+="var ret = retType.fromWireType(rv);\nreturn ret;\n");K.push(p+"}\n");h=Za(K).apply(null,q);l=b-1;if(!d.hasOwnProperty(k))throw new Pa("Replacing nonexistant public symbol");void 0!==d[k].J&&void 0!==l?d[k].J[l]=h:(d[k]=h,d[k].O=l);return[]})},b:function(a,b,c,e,f){function g(p){return p}b=
+Y[c].value;Sa(c);return e},toWireType:function(c,e){return Ta(e)},argPackAdvance:8,readValueFromPointer:Wa,K:null})},g:function(a,b,c){c=Ja(c);b=S(b);X(a,{name:b,fromWireType:function(e){return e},toWireType:function(e,f){if("number"!==typeof f&&"boolean"!==typeof f)throw new TypeError('Cannot convert "'+Xa(f)+'" to '+this.name);return f},argPackAdvance:8,readValueFromPointer:Ya(b,c),K:null})},e:function(a,b,c,e,f,g){var n=cb(b,c);a=S(a);f=db(e,f);bb(a,function(){hb("Cannot call "+a+" due to unbound types",
+n)},b-1);Qa(n,function(k){var h=[k[0],null].concat(k.slice(1)),p=k=a,q=f,m=h.length;2>m&&W("argTypes array size mismatch! Must at least get return value and 'this' types!");for(var r=null!==h[1]&&!1,y=!1,l=1;l<h.length;++l)if(null!==h[l]&&void 0===h[l].K){y=!0;break}var Ua="void"!==h[0].name,K="",O="";for(l=0;l<m-2;++l)K+=(0!==l?", ":"")+"arg"+l,O+=(0!==l?", ":"")+"arg"+l+"Wired";p="return function "+La(p)+"("+K+") {\nif (arguments.length !== "+(m-2)+") {\nthrowBindingError('function "+p+" called with ' + arguments.length + ' arguments, expected "+
+(m-2)+" args!');\n}\n";y&&(p+="var destructors = [];\n");var Va=y?"destructors":"null";K="throwBindingError invoker fn runDestructors retType classParam".split(" ");q=[W,q,g,$a,h[0],h[1]];r&&(p+="var thisWired = classParam.toWireType("+Va+", this);\n");for(l=0;l<m-2;++l)p+="var arg"+l+"Wired = argType"+l+".toWireType("+Va+", arg"+l+"); // "+h[l+2].name+"\n",K.push("argType"+l),q.push(h[l+2]);r&&(O="thisWired"+(0<O.length?", ":"")+O);p+=(Ua?"var rv = ":"")+"invoker(fn"+(0<O.length?", ":"")+O+");\n";
+if(y)p+="runDestructors(destructors);\n";else for(l=r?1:2;l<h.length;++l)m=1===l?"thisWired":"arg"+(l-2)+"Wired",null!==h[l].K&&(p+=m+"_dtor("+m+"); // "+h[l].name+"\n",K.push(m+"_dtor"),q.push(h[l].K));Ua&&(p+="var ret = retType.fromWireType(rv);\nreturn ret;\n");K.push(p+"}\n");h=Za(K).apply(null,q);l=b-1;if(!d.hasOwnProperty(k))throw new Pa("Replacing nonexistant public symbol");void 0!==d[k].J&&void 0!==l?d[k].J[l]=h:(d[k]=h,d[k].O=l);return[]})},b:function(a,b,c,e,f){function g(p){return p}b=
 S(b);-1===f&&(f=4294967295);var n=Ja(c);if(0===e){var k=32-8*c;g=function(p){return p<<k>>>k}}var h=-1!=b.indexOf("unsigned");X(a,{name:b,fromWireType:g,toWireType:function(p,q){if("number"!==typeof q&&"boolean"!==typeof q)throw new TypeError('Cannot convert "'+Xa(q)+'" to '+this.name);if(q<e||q>f)throw new TypeError('Passing a number "'+Xa(q)+'" from JS side to C/C++ side to an argument of type "'+b+'", which is outside the valid range ['+e+", "+f+"]!");return h?q>>>0:q|0},argPackAdvance:8,readValueFromPointer:ib(b,
-n,0!==e),K:null})},a:function(a,b,c){function e(g){g>>=2;var n=L;return new f(J,n[g+1],n[g])}var f=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array][b];c=S(c);X(a,{name:c,fromWireType:e,argPackAdvance:8,readValueFromPointer:e},{R:!0})},h:function(a,b){b=S(b);var c="std::string"===b;X(a,{name:b,fromWireType:function(e){var f=L[e>>2];if(c)for(var g=e+4,n=0;n<=f;++n){var k=e+4+n;if(0==F[k]||n==f){if(g){var h=g;var p=F,q=h+(k-g);for(g=h;p[g]&&!(g>=q);)++g;
+n,0!==e),K:null})},a:function(a,b,c){function e(g){g>>=2;var n=L;return new f(J,n[g+1],n[g])}var f=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array][b];c=S(c);X(a,{name:c,fromWireType:e,argPackAdvance:8,readValueFromPointer:e},{R:!0})},h:function(a,b){b=S(b);var c="std::string"===b;X(a,{name:b,fromWireType:function(e){var f=L[e>>2];if(c)for(var g=e+4,n=0;n<=f;++n){var k=e+4+n;if(n==f||0==F[k]){if(g){var h=g;var p=F,q=h+(k-g);for(g=h;p[g]&&!(g>=q);)++g;
 if(16<g-h&&p.subarray&&ja)h=ja.decode(p.subarray(h,g));else{for(q="";h<g;){var m=p[h++];if(m&128){var r=p[h++]&63;if(192==(m&224))q+=String.fromCharCode((m&31)<<6|r);else{var y=p[h++]&63;m=224==(m&240)?(m&15)<<12|r<<6|y:(m&7)<<18|r<<12|y<<6|p[h++]&63;65536>m?q+=String.fromCharCode(m):(m-=65536,q+=String.fromCharCode(55296|m>>10,56320|m&1023))}}else q+=String.fromCharCode(m)}h=q}}else h="";if(void 0===l)var l=h;else l+=String.fromCharCode(0),l+=h;g=k+1}}else{l=Array(f);for(n=0;n<f;++n)l[n]=String.fromCharCode(F[e+
 4+n]);l=l.join("")}Z(e);return l},toWireType:function(e,f){f instanceof ArrayBuffer&&(f=new Uint8Array(f));var g="string"===typeof f;g||f instanceof Uint8Array||f instanceof Uint8ClampedArray||f instanceof Int8Array||W("Cannot pass non-string to std::string");var n=(c&&g?function(){for(var p=0,q=0;q<f.length;++q){var m=f.charCodeAt(q);55296<=m&&57343>=m&&(m=65536+((m&1023)<<10)|f.charCodeAt(++q)&1023);127>=m?++p:p=2047>=m?p+2:65535>=m?p+3:p+4}return p}:function(){return f.length})(),k=pb(4+n+1);L[k>>
 2]=n;if(c&&g)ka(f,k+4,n+1);else if(g)for(g=0;g<n;++g){var h=f.charCodeAt(g);255<h&&(Z(k),W("String has UTF-16 code units that do not fit in 8 bits"));F[k+4+g]=h}else for(g=0;g<n;++g)F[k+4+g]=f[g];null!==e&&e.push(Z,k);return k},argPackAdvance:8,readValueFromPointer:Wa,K:function(e){Z(e)}})},d:function(a,b,c){c=S(c);if(2===b){var e=ma;var f=na;var g=oa;var n=function(){return G};var k=1}else 4===b&&(e=pa,f=qa,g=ra,n=function(){return L},k=2);X(a,{name:c,fromWireType:function(h){for(var p=L[h>>2],q=
-n(),m,r=h+4,y=0;y<=p;++y){var l=h+4+y*b;if(0==q[l>>k]||y==p)r=e(r,l-r),void 0===m?m=r:(m+=String.fromCharCode(0),m+=r),r=l+b}Z(h);return m},toWireType:function(h,p){"string"!==typeof p&&W("Cannot pass non-string to C++ string type "+c);var q=g(p),m=pb(4+q+b);L[m>>2]=q>>k;f(p,m+4,q+b);null!==h&&h.push(Z,m);return m},argPackAdvance:8,readValueFromPointer:Wa,K:function(h){Z(h)}})},k:function(a,b){b=S(b);X(a,{S:!0,name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},o:Sa,s:function(a){if(0===
-a)return Va(kb());var b=jb[a];a=void 0===b?S(a):b;return Va(kb()[a])},n:function(a){4<a&&(Y[a].M+=1)},f:function(a,b,c,e){a||W("Cannot use deleted val. handle = "+a);a=Y[a].value;var f=mb[b];if(!f){f="";for(var g=0;g<b;++g)f+=(0!==g?", ":"")+"arg"+g;var n="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";for(g=0;g<b;++g)n+="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",n+("var obj = new constructor("+f+");\nreturn __emval_register(obj);\n}\n")))(lb,d,Va);mb[b]=f}return f(a,c,e)},q:function(){B()},p:function(a,b,c){F.copyWithin(a,b,b+c)},c:function(a){a>>>=0;var b=F.length;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var e=b*(1+.2/c);e=Math.min(e,a+100663296);e=Math.max(16777216,a,e);0<e%65536&&(e+=65536-e%65536);a:{try{E.grow(Math.min(2147483648,e)-J.byteLength+65535>>>
+n(),m,r=h+4,y=0;y<=p;++y){var l=h+4+y*b;if(y==p||0==q[l>>k])r=e(r,l-r),void 0===m?m=r:(m+=String.fromCharCode(0),m+=r),r=l+b}Z(h);return m},toWireType:function(h,p){"string"!==typeof p&&W("Cannot pass non-string to C++ string type "+c);var q=g(p),m=pb(4+q+b);L[m>>2]=q>>k;f(p,m+4,q+b);null!==h&&h.push(Z,m);return m},argPackAdvance:8,readValueFromPointer:Wa,K:function(h){Z(h)}})},k:function(a,b){b=S(b);X(a,{S:!0,name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},o:Sa,s:function(a){if(0===
+a)return Ta(kb());var b=jb[a];a=void 0===b?S(a):b;return Ta(kb()[a])},n:function(a){4<a&&(Y[a].M+=1)},f:function(a,b,c,e){a||W("Cannot use deleted val. handle = "+a);a=Y[a].value;var f=mb[b];if(!f){f="";for(var g=0;g<b;++g)f+=(0!==g?", ":"")+"arg"+g;var n="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";for(g=0;g<b;++g)n+="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",n+("var obj = new constructor("+f+");\nreturn __emval_register(obj);\n}\n")))(lb,d,Ta);mb[b]=f}return f(a,c,e)},q:function(){B()},p:function(a,b,c){F.copyWithin(a,b,b+c)},c:function(a){a>>>=0;var b=F.length;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var e=b*(1+.2/c);e=Math.min(e,a+100663296);e=Math.max(16777216,a,e);0<e%65536&&(e+=65536-e%65536);a:{try{E.grow(Math.min(2147483648,e)-J.byteLength+65535>>>
 16);va(E.buffer);var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},memory:E,table:ha};
 (function(){function a(f){d.asm=f.exports;N--;d.monitorRunDependencies&&d.monitorRunDependencies(N);0==N&&(null!==Ca&&(clearInterval(Ca),Ca=null),P&&(f=P,P=null,f()))}function b(f){a(f.instance)}function c(f){return Ha().then(function(g){return WebAssembly.instantiate(g,e)}).then(f,function(g){C("failed to asynchronously prepare wasm: "+g);B(g)})}var e={a:qb};N++;d.monitorRunDependencies&&d.monitorRunDependencies(N);if(d.instantiateWasm)try{return d.instantiateWasm(e,a)}catch(f){return C("Module.instantiateWasm callback failed with error: "+
 f),!1}(function(){if(D||"function"!==typeof WebAssembly.instantiateStreaming||Ea()||Da("file://")||"function"!==typeof fetch)return c(b);fetch(Q,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,e).then(b,function(g){C("wasm streaming compile failed: "+g);C("falling back to ArrayBuffer instantiation");return c(b)})})})();return{}})();

codecs/webp/enc/webp_enc.cpp

@@ -14,7 +14,7 @@ int version() {
 thread_local const val Uint8Array = val::global("Uint8Array");
 
 val encode(std::string img, int width, int height, WebPConfig config) {
-  uint8_t* img_in = (uint8_t*)img.c_str();
+  auto img_in = (uint8_t*)img.c_str();
 
   // A lot of this is duplicated from Encode in picture_enc.c
   WebPPicture pic;
@@ -23,7 +23,7 @@ val encode(std::string img, int width, int height, WebPConfig config) {
 
   if (!WebPPictureInit(&pic)) {
     // shouldn't happen, except if system installation is broken
-    throw std::runtime_error("Unexpected error");
+    return val::null();
   }
 
   // Only use use_argb if we really need it, as it's slower.
@@ -35,15 +35,10 @@ val encode(std::string img, int width, int height, WebPConfig config) {
 
   WebPMemoryWriterInit(&wrt);
 
-  ok = WebPPictureImportRGBA(&pic, (uint8_t*)img_in, width * 4) && WebPEncode(&config, &pic);
+  ok = WebPPictureImportRGBA(&pic, img_in, width * 4) && WebPEncode(&config, &pic);
   WebPPictureFree(&pic);
-  if (!ok) {
-    WebPMemoryWriterClear(&wrt);
-    throw std::runtime_error("Encode failed");
-  }
-
-  val js_result = Uint8Array.new_(typed_memory_view(wrt.size, wrt.mem));
-  WebPFree(wrt.mem);
+  val js_result = ok ? Uint8Array.new_(typed_memory_view(wrt.size, wrt.mem)) : val::null();
+  WebPMemoryWriterClear(&wrt);
   return js_result;
 }
 

codecs/webp/enc/webp_enc.d.ts

@@ -1,7 +1,7 @@
 import { EncodeOptions } from '../../../src/codecs/webp/encoder-meta';
 
 interface WebPModule extends EmscriptenWasm.Module {
-  encode(data: BufferSource, width: number, height: number, options: EncodeOptions): Uint8Array;
+  encode(data: BufferSource, width: number, height: number, options: EncodeOptions): Uint8Array | null;
 }
 
 export default function(opts: EmscriptenWasm.ModuleOpts): WebPModule;

codecs/webp/enc/webp_enc.js

@@ -7,17 +7,17 @@ function(webp_enc) {
   webp_enc = webp_enc || {};
 
 
-var d;d||(d=typeof webp_enc !== 'undefined' ? webp_enc : {});var aa;d.ready=new Promise(function(a){aa=a});var r={},u;for(u in d)d.hasOwnProperty(u)&&(r[u]=d[u]);var w=!1,x=!1,ba=!1,ca=!1;w="object"===typeof window;x="function"===typeof importScripts;ba="object"===typeof process&&"object"===typeof process.versions&&"string"===typeof process.versions.node;ca=!w&&!ba&&!x;var y="",A,B,da,ea;
-if(ba)y=x?require("path").dirname(y)+"/":__dirname+"/",A=function(a,b){da||(da=require("fs"));ea||(ea=require("path"));a=ea.normalize(a);return da.readFileSync(a,b?null:"utf8")},B=function(a){a=A(a,!0);a.buffer||(a=new Uint8Array(a));a.buffer||C("Assertion failed: undefined");return a},1<process.argv.length&&process.argv[1].replace(/\\/g,"/"),process.argv.slice(2),process.on("uncaughtException",function(a){throw a;}),process.on("unhandledRejection",C),d.inspect=function(){return"[Emscripten Module object]"};
-else if(ca)"undefined"!=typeof read&&(A=function(a){return read(a)}),B=function(a){if("function"===typeof readbuffer)return new Uint8Array(readbuffer(a));a=read(a,"binary");"object"===typeof a||C("Assertion failed: undefined");return a},"undefined"!==typeof print&&("undefined"===typeof console&&(console={}),console.log=print,console.warn=console.error="undefined"!==typeof printErr?printErr:print);else if(w||x)x?y=self.location.href:document.currentScript&&(y=document.currentScript.src),_scriptDir&&
-(y=_scriptDir),0!==y.indexOf("blob:")?y=y.substr(0,y.lastIndexOf("/")+1):y="",A=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.send(null);return b.responseText},x&&(B=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)});var fa=d.print||console.log.bind(console),D=d.printErr||console.warn.bind(console);for(u in r)r.hasOwnProperty(u)&&(d[u]=r[u]);r=null;var E;d.wasmBinary&&(E=d.wasmBinary);var noExitRuntime;
-d.noExitRuntime&&(noExitRuntime=d.noExitRuntime);"object"!==typeof WebAssembly&&C("no native wasm support detected");var G,ha=new WebAssembly.Table({initial:128,maximum:128,element:"anyfunc"}),ia=!1,ja="undefined"!==typeof TextDecoder?new TextDecoder("utf8"):void 0;
+var d;d||(d=typeof webp_enc !== 'undefined' ? webp_enc : {});var aa,ba;d.ready=new Promise(function(a,b){aa=a;ba=b});var r={},u;for(u in d)d.hasOwnProperty(u)&&(r[u]=d[u]);var w=!1,x=!1,ca=!1,da=!1;w="object"===typeof window;x="function"===typeof importScripts;ca="object"===typeof process&&"object"===typeof process.versions&&"string"===typeof process.versions.node;da=!w&&!ca&&!x;var y="",A,B,ea,fa;
+if(ca)y=x?require("path").dirname(y)+"/":__dirname+"/",A=function(a,b){ea||(ea=require("fs"));fa||(fa=require("path"));a=fa.normalize(a);return ea.readFileSync(a,b?null:"utf8")},B=function(a){a=A(a,!0);a.buffer||(a=new Uint8Array(a));a.buffer||C("Assertion failed: undefined");return a},1<process.argv.length&&process.argv[1].replace(/\\/g,"/"),process.argv.slice(2),process.on("uncaughtException",function(a){throw a;}),process.on("unhandledRejection",C),d.inspect=function(){return"[Emscripten Module object]"};
+else if(da)"undefined"!=typeof read&&(A=function(a){return read(a)}),B=function(a){if("function"===typeof readbuffer)return new Uint8Array(readbuffer(a));a=read(a,"binary");"object"===typeof a||C("Assertion failed: undefined");return a},"undefined"!==typeof print&&("undefined"===typeof console&&(console={}),console.log=print,console.warn=console.error="undefined"!==typeof printErr?printErr:print);else if(w||x)x?y=self.location.href:document.currentScript&&(y=document.currentScript.src),_scriptDir&&
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+b&&(e=qa,f=ra,g=sa,l=function(){return N},k=2);T(a,{name:c,fromWireType:function(h){for(var m=N[h>>2],q=l(),n,t=h+4,v=0;v<=m;++v){var p=h+4+v*b;if(v==m||0==q[p>>k])t=e(t,p-t),void 0===n?n=t:(n+=String.fromCharCode(0),n+=t),t=p+b}Y(h);return n},toWireType:function(h,m){"string"!==typeof m&&V("Cannot pass non-string to C++ string type "+c);var q=g(m),n=rb(4+q+b);N[n>>2]=q>>k;f(m,n+4,q+b);null!==h&&h.push(Y,n);return n},argPackAdvance:8,readValueFromPointer:Na,R:function(h){Y(h)}})},j:function(a,b,c,
+e,f,g){La[a]={name:U(b),ea:Z(c,e),fa:Z(f,g),W:[]}},d:function(a,b,c,e,f,g,l,k,h,m){La[a].W.push({Y:U(b),ba:c,$:Z(e,f),aa:g,ha:l,ga:Z(k,h),ia:m})},s:function(a,b){b=U(b);T(a,{ja:!0,name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},p:Ya,w:function(a){if(0===a)return Za(nb());var b=mb[a];a=void 0===b?U(a):b;return Za(nb()[a])},v:function(a){4<a&&(X[a].U+=1)},m:function(a,b,c,e){a||V("Cannot use deleted val. handle = "+a);a=X[a].value;var f=ob[b];if(!f){f="";for(var g=0;g<b;++g)f+=
 (0!==g?", ":"")+"arg"+g;var l="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";for(g=0;g<b;++g)l+="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",l+("var obj = new constructor("+f+");\nreturn __emval_register(obj);\n}\n")))(eb,d,Za);ob[b]=f}return f(a,
-c,e)},s:function(){C()},r:function(a,b,c){H.copyWithin(a,b,b+c)},c:function(a){a>>>=0;var b=H.length;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var e=b*(1+.2/c);e=Math.min(e,a+100663296);e=Math.max(16777216,a,e);0<e%65536&&(e+=65536-e%65536);a:{try{G.grow(Math.min(2147483648,e)-L.byteLength+65535>>>16);va(G.buffer);var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},memory:G,table:ha};
+c,e)},o:function(){C()},n:function(a,b,c){H.copyWithin(a,b,b+c)},c:function(a){a>>>=0;var b=H.length;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var e=b*(1+.2/c);e=Math.min(e,a+100663296);e=Math.max(16777216,a,e);0<e%65536&&(e+=65536-e%65536);a:{try{G.grow(Math.min(2147483648,e)-L.byteLength+65535>>>16);va(G.buffer);var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},memory:G,table:ha};
 (function(){function a(f){d.asm=f.exports;O--;d.monitorRunDependencies&&d.monitorRunDependencies(O);0==O&&(null!==Da&&(clearInterval(Da),Da=null),P&&(f=P,P=null,f()))}function b(f){a(f.instance)}function c(f){return Ia().then(function(g){return WebAssembly.instantiate(g,e)}).then(f,function(g){D("failed to asynchronously prepare wasm: "+g);C(g)})}var e={a:sb};O++;d.monitorRunDependencies&&d.monitorRunDependencies(O);if(d.instantiateWasm)try{return d.instantiateWasm(e,a)}catch(f){return D("Module.instantiateWasm callback failed with error: "+
 f),!1}(function(){if(E||"function"!==typeof WebAssembly.instantiateStreaming||Fa()||Ea("file://")||"function"!==typeof fetch)return c(b);fetch(Q,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,e).then(b,function(g){D("wasm streaming compile failed: "+g);D("falling back to ArrayBuffer instantiation");return c(b)})})})();return{}})();
 var Ja=d.___wasm_call_ctors=function(){return(Ja=d.___wasm_call_ctors=d.asm.y).apply(null,arguments)},rb=d._malloc=function(){return(rb=d._malloc=d.asm.z).apply(null,arguments)},Y=d._free=function(){return(Y=d._free=d.asm.A).apply(null,arguments)},db=d.___getTypeName=function(){return(db=d.___getTypeName=d.asm.B).apply(null,arguments)};d.___embind_register_native_and_builtin_types=function(){return(d.___embind_register_native_and_builtin_types=d.asm.C).apply(null,arguments)};

src/codecs/avif/decoder-meta.ts

@@ -0,0 +1,7 @@
+export const name = 'WASM AVIF Decoder';
+
+const supportedMimeTypes = ['image/avif'];
+
+export function canHandleMimeType(mimeType: string): boolean {
+  return supportedMimeTypes.includes(mimeType);
+}

src/codecs/avif/decoder.ts

@@ -0,0 +1,16 @@
+import avif_dec, { AVIFModule } from '../../../codecs/avif/dec/avif_dec';
+import wasmUrl from '../../../codecs/avif/dec/avif_dec.wasm';
+import { initEmscriptenModule } from '../util';
+
+let emscriptenModule: Promise<AVIFModule>;
+
+export async function decode(data: ArrayBuffer): Promise<ImageData> {
+  if (!emscriptenModule) emscriptenModule = initEmscriptenModule(avif_dec, wasmUrl);
+
+  const module = await emscriptenModule;
+  const result = module.decode(data);
+  if (!result) {
+    throw new Error('Decoding error');
+  }
+  return result;
+}

src/codecs/avif/encoder-meta.ts

@@ -0,0 +1,23 @@
+export interface EncodeOptions {
+  minQuantizer: number;
+  maxQuantizer: number;
+  tileRowsLog2: number;
+  tileColsLog2: number;
+  speed: number;
+  subsample: number;
+}
+
+export const type = 'avif';
+export const label = 'AVIF';
+export const mimeType = 'image/avif';
+export const extension = 'avif';
+export const defaultOptions: EncodeOptions = {
+  minQuantizer: 16,
+  maxQuantizer: 16,
+  tileColsLog2: 0,
+  tileRowsLog2: 0,
+  speed: 10,
+  subsample: 0,
+};
+
+export interface EncoderState { type: typeof type; options: EncodeOptions; }

src/codecs/avif/encoder.ts

@@ -0,0 +1,20 @@
+import avif_enc, { AVIFModule } from '../../../codecs/avif/enc/avif_enc';
+import wasmUrl from '../../../codecs/avif/enc/avif_enc.wasm';
+import { EncodeOptions } from './encoder-meta';
+import { initEmscriptenModule } from '../util';
+
+let emscriptenModule: Promise<AVIFModule>;
+
+export async function encode(data: ImageData, options: EncodeOptions): Promise<ArrayBuffer> {
+  if (!emscriptenModule) emscriptenModule = initEmscriptenModule(avif_enc, wasmUrl);
+
+  const module = await emscriptenModule;
+  const result = module.encode(data.data, data.width, data.height, options);
+
+  if (!result) {
+    throw new Error('Encoding error');
+  }
+
+  // wasm can’t run on SharedArrayBuffers, so we hard-cast to ArrayBuffer.
+  return result.buffer as ArrayBuffer;
+}

src/codecs/avif/options.tsx

@@ -0,0 +1,75 @@
+import { h, Component } from 'preact';
+import { bind } from '../../lib/initial-util';
+import {
+  /*inputFieldCheckedAsNumber,*/ inputFieldValueAsNumber,
+  preventDefault,
+} from '../../lib/util';
+import { EncodeOptions } from './encoder-meta';
+import * as style from '../../components/Options/style.scss';
+// import Checkbox from '../../components/checkbox';
+// import Expander from '../../components/expander';
+// import Select from '../../components/select';
+import Range from '../../components/range';
+// import linkState from 'linkstate';
+
+interface Props {
+  options: EncodeOptions;
+  onChange(newOptions: EncodeOptions): void;
+}
+
+interface State {}
+
+export default class AVIFEncoderOptions extends Component<Props, State> {
+  state: State = {};
+
+  @bind
+  onChange(event: Event) {
+    const form = (event.currentTarget as HTMLInputElement).closest(
+      'form',
+    ) as HTMLFormElement;
+    const { options } = this.props;
+    const newOptions: EncodeOptions = {
+      // Copy over options the form doesn't currently care about, eg arithmetic
+      ...this.props.options,
+      minQuantizer: inputFieldValueAsNumber(
+        form.quantizer,
+        options.minQuantizer,
+      ),
+      maxQuantizer: inputFieldValueAsNumber(
+        form.quantizer,
+        options.maxQuantizer,
+      ),
+      speed: inputFieldValueAsNumber(form.speed, options.speed),
+    };
+    this.props.onChange(newOptions);
+  }
+
+  render({ options }: Props) {
+    return (
+      <form class={style.optionsSection} onSubmit={preventDefault}>
+        <div class={style.optionOneCell}>
+          <Range
+            name="quantizer"
+            min="0"
+            max="63"
+            value={options.minQuantizer}
+            onInput={this.onChange}
+          >
+            Quantizer
+          </Range>
+        </div>
+        <div class={style.optionOneCell}>
+          <Range
+            name="speed"
+            min="0"
+            max="10"
+            value={options.speed}
+            onInput={this.onChange}
+          >
+            Speed
+          </Range>
+        </div>
+      </form>
+    );
+  }
+}

src/codecs/decoders.ts

@@ -8,6 +8,12 @@ export async function decodeImage(blob: Blob, processor: Processor): Promise<Ima
   const mimeType = await sniffMimeType(blob);
 
   try {
+    if (mimeType === 'image/jpegxl') {
+      return await processor.jxlDecode(blob);
+    }
+    if (mimeType === 'image/avif') {
+      return await processor.avifDecode(blob);
+    }
     if (mimeType === 'image/webp' && !(await webPSupported)) {
       return await processor.webpDecode(blob);
     }

src/codecs/encoders.ts

@@ -2,6 +2,8 @@ import * as identity from './identity/encoder-meta';
 import * as oxiPNG from './oxipng/encoder-meta';
 import * as mozJPEG from './mozjpeg/encoder-meta';
 import * as webP from './webp/encoder-meta';
+import * as jxl from './jxl/encoder-meta';
+import * as avif from './avif/encoder-meta';
 import * as browserPNG from './browser-png/encoder-meta';
 import * as browserJPEG from './browser-jpeg/encoder-meta';
 import * as browserWebP from './browser-webp/encoder-meta';
@@ -20,6 +22,8 @@ export type EncoderState =
   oxiPNG.EncoderState |
   mozJPEG.EncoderState |
   webP.EncoderState |
+  jxl.EncoderState |
+  avif.EncoderState |
   browserPNG.EncoderState |
   browserJPEG.EncoderState |
   browserWebP.EncoderState |
@@ -34,6 +38,8 @@ export type EncoderOptions =
   oxiPNG.EncodeOptions |
   mozJPEG.EncodeOptions |
   webP.EncodeOptions |
+  jxl.EncodeOptions |
+  avif.EncodeOptions |
   browserPNG.EncodeOptions |
   browserJPEG.EncodeOptions |
   browserWebP.EncodeOptions |
@@ -50,6 +56,8 @@ export const encoderMap = {
   [oxiPNG.type]: oxiPNG,
   [mozJPEG.type]: mozJPEG,
   [webP.type]: webP,
+  [jxl.type]: jxl,
+  [avif.type]: avif,
   [browserPNG.type]: browserPNG,
   [browserJPEG.type]: browserJPEG,
   [browserWebP.type]: browserWebP,

src/codecs/jxl/decoder-meta.ts

@@ -0,0 +1,7 @@
+export const name = 'WASM JPEG XL Decoder';
+
+const supportedMimeTypes = ['image/jpegxl'];
+
+export function canHandleMimeType(mimeType: string): boolean {
+  return supportedMimeTypes.includes(mimeType);
+}

src/codecs/jxl/decoder.ts

@@ -0,0 +1,12 @@
+import jxl_dec, { JXLModule } from '../../../codecs/jxl/dec/jxl_dec';
+import wasmUrl from '../../../codecs/jxl/dec/jxl_dec.wasm';
+import { initEmscriptenModule } from '../util';
+
+let emscriptenModule: Promise<JXLModule>;
+
+export async function decode(data: ArrayBuffer): Promise<ImageData> {
+  if (!emscriptenModule) emscriptenModule = initEmscriptenModule(jxl_dec, wasmUrl);
+
+  const module = await emscriptenModule;
+  return module.decode(data);
+}

src/codecs/jxl/encoder-meta.ts

@@ -0,0 +1,16 @@
+export interface EncodeOptions {
+  speed: number;
+  quality: number;
+}
+
+export interface EncoderState { type: typeof type; options: EncodeOptions; }
+
+export const type = 'jxl';
+export const label = 'JPEG XL (beta)';
+export const mimeType = 'image/jpegxl';
+export const extension = 'jxl';
+// These come from struct WebPConfig in encode.h.
+export const defaultOptions: EncodeOptions = {
+  speed: 5,
+  quality: 1,
+};

src/codecs/jxl/encoder.ts

@@ -0,0 +1,16 @@
+import jxl_enc, { JXLModule } from '../../../codecs/jxl/enc/jxl_enc';
+import wasmUrl from '../../../codecs/jxl/enc/jxl_enc.wasm';
+import { EncodeOptions } from './encoder-meta';
+import { initEmscriptenModule } from '../util';
+
+let emscriptenModule: Promise<JXLModule>;
+
+export async function encode(data: ImageData, options: EncodeOptions): Promise<ArrayBuffer> {
+  if (!emscriptenModule) emscriptenModule = initEmscriptenModule(jxl_enc, wasmUrl);
+
+  const module = await emscriptenModule;
+  const result = module.encode(data.data, data.width, data.height, options);
+
+  // wasm can’t run on SharedArrayBuffers, so we hard-cast to ArrayBuffer.
+  return result.buffer as ArrayBuffer;
+}

src/codecs/jxl/options.tsx

@@ -0,0 +1,65 @@
+import { h, Component } from 'preact';
+import { bind } from '../../lib/initial-util';
+import { inputFieldValueAsNumber, preventDefault } from '../../lib/util';
+import { EncodeOptions } from './encoder-meta';
+import * as style from '../../components/Options/style.scss';
+// import Checkbox from '../../components/checkbox';
+// import Expander from '../../components/expander';
+// import Select from '../../components/select';
+import Range from '../../components/range';
+// import linkState from 'linkstate';
+
+interface Props {
+  options: EncodeOptions;
+  onChange(newOptions: EncodeOptions): void;
+}
+
+interface State {}
+
+export default class JXLEncoderOptions extends Component<Props, State> {
+  state: State = {};
+
+  @bind
+  onChange(event: Event) {
+    const form = (event.currentTarget as HTMLInputElement).closest(
+      'form',
+    ) as HTMLFormElement;
+    const { options } = this.props;
+
+    const newOptions: EncodeOptions = {
+      // Copy over options the form doesn't care about, eg emulate_jpeg_size
+      ...options,
+      speed: inputFieldValueAsNumber(form.speed, options.speed),
+      quality: inputFieldValueAsNumber(form.quality, options.quality),
+    };
+    this.props.onChange(newOptions);
+  }
+
+  render({ options }: Props) {
+    return (
+      <form class={style.optionsSection} onSubmit={preventDefault}>
+        <div class={style.optionOneCell}>
+          <Range
+            name="speed"
+            min="1"
+            max="7"
+            value={options.speed}
+            onInput={this.onChange}
+          >
+            Speed:
+          </Range>
+          <Range
+            name="quality"
+            min="0.5"
+            max="8"
+            step="0.1"
+            value={options.quality}
+            onInput={this.onChange}
+          >
+            Quality:
+          </Range>
+        </div>
+      </form>
+    );
+  }
+}

src/codecs/mozjpeg/encoder.ts

@@ -1,5 +1,5 @@
-import mozjpeg_enc, { MozJPEGModule } from '../../../codecs/mozjpeg_enc/mozjpeg_enc';
-import wasmUrl from '../../../codecs/mozjpeg_enc/mozjpeg_enc.wasm';
+import mozjpeg_enc, { MozJPEGModule } from '../../../codecs/mozjpeg/enc/mozjpeg_enc';
+import wasmUrl from '../../../codecs/mozjpeg/enc/mozjpeg_enc.wasm';
 import { EncodeOptions } from './encoder-meta';
 import { initEmscriptenModule } from '../util';
 

src/codecs/processor-worker/index.ts

@@ -82,6 +82,38 @@ async function webpDecode(data: ArrayBuffer): Promise<ImageData> {
   return timed('webpDecode', () => decode(data));
 }
 
+async function avifEncode(
+  data: ImageData, options: import('../avif/encoder-meta').EncodeOptions,
+): Promise<ArrayBuffer> {
+  const { encode } = await import(
+    /* webpackChunkName: "process-avif-enc" */
+    '../avif/encoder');
+  return encode(data, options);
+}
+
+async function avifDecode(data: ArrayBuffer): Promise<ImageData> {
+  const { decode } = await import(
+    /* webpackChunkName: "process-avif-dec" */
+    '../avif/decoder');
+  return decode(data);
+}
+
+async function jxlEncode(
+  data: ImageData, options: import('../jxl/encoder-meta').EncodeOptions,
+): Promise<ArrayBuffer> {
+  const { encode } = await import(
+    /* webpackChunkName: "process-jxl-enc" */
+    '../jxl/encoder');
+  return timed('jxlEncode', () => encode(data, options));
+}
+
+async function jxlDecode(data: ArrayBuffer): Promise<ImageData> {
+  const { decode } = await import(
+    /* webpackChunkName: "process-jxl-dec" */
+    '../jxl/decoder');
+  return timed('jxlDecode', () => decode(data));
+}
+
 const exports = {
   mozjpegEncode,
   quantize,
@@ -90,6 +122,10 @@ const exports = {
   oxiPngEncode,
   webpEncode,
   webpDecode,
+  jxlEncode,
+  jxlDecode,
+  avifEncode,
+  avifDecode,
 };
 export type ProcessorWorkerApi = typeof exports;
 

src/codecs/processor.ts

@@ -4,6 +4,8 @@ import { canvasEncode, blobToArrayBuffer } from '../lib/util';
 import { EncodeOptions as MozJPEGEncoderOptions } from './mozjpeg/encoder-meta';
 import { EncodeOptions as OxiPNGEncoderOptions } from './oxipng/encoder-meta';
 import { EncodeOptions as WebPEncoderOptions } from './webp/encoder-meta';
+import { EncodeOptions as JXLEncoderOptions } from './jxl/encoder-meta';
+import { EncodeOptions as AvifEncoderOptions } from './avif/encoder-meta';
 import { EncodeOptions as BrowserJPEGOptions } from './browser-jpeg/encoder-meta';
 import { EncodeOptions as BrowserWebpEncodeOptions } from './browser-webp/encoder-meta';
 import { BrowserResizeOptions, VectorResizeOptions } from './resize/processor-meta';
@@ -163,6 +165,28 @@ export default class Processor {
     return this._workerApi!.webpDecode(data);
   }
 
+  @Processor._processingJob({ needsWorker: true })
+  jxlEncode(data: ImageData, opts: JXLEncoderOptions): Promise<ArrayBuffer> {
+    return this._workerApi!.jxlEncode(data, opts);
+  }
+
+  @Processor._processingJob({ needsWorker: true })
+  async jxlDecode(blob: Blob): Promise<ImageData> {
+    const data = await blobToArrayBuffer(blob);
+    return this._workerApi!.jxlDecode(data);
+  }
+
+  @Processor._processingJob({ needsWorker: true })
+  async avifDecode(blob: Blob): Promise<ImageData> {
+    const data = await blobToArrayBuffer(blob);
+    return this._workerApi!.avifDecode(data);
+  }
+
+  @Processor._processingJob({ needsWorker: true })
+  avifEncode(data: ImageData, opts: AvifEncoderOptions): Promise<ArrayBuffer> {
+    return this._workerApi!.avifEncode(data, opts);
+  }
+
   // Not-worker jobs:
 
   @Processor._processingJob()

src/codecs/webp/decoder.ts

@@ -8,5 +8,9 @@ export async function decode(data: ArrayBuffer): Promise<ImageData> {
   if (!emscriptenModule) emscriptenModule = initEmscriptenModule(webp_dec, wasmUrl);
 
   const module = await emscriptenModule;
-  return module.decode(data);
+  const result = module.decode(data);
+  if (!result) {
+    throw new Error('Decoding error');
+  }
+  return result;
 }

src/codecs/webp/encoder.ts

@@ -10,6 +10,9 @@ export async function encode(data: ImageData, options: EncodeOptions): Promise<A
 
   const module = await emscriptenModule;
   const result = module.encode(data.data, data.width, data.height, options);
+  if (!result) {
+    throw new Error('Encoding error.');
+  }
   // wasm can’t run on SharedArrayBuffers, so we hard-cast to ArrayBuffer.
   return result.buffer as ArrayBuffer;
 }

src/components/Options/index.tsx

@@ -7,6 +7,8 @@ import OxiPNGEncoderOptions from '../../codecs/oxipng/options';
 import MozJpegEncoderOptions from '../../codecs/mozjpeg/options';
 import BrowserJPEGEncoderOptions from '../../codecs/browser-jpeg/options';
 import WebPEncoderOptions from '../../codecs/webp/options';
+import JXLEncoderOptions from '../../codecs/jxl/options';
+import AvifEncoderOptions from '../../codecs/avif/options';
 import BrowserWebPEncoderOptions from '../../codecs/browser-webp/options';
 
 import QuantizerOptionsComponent from '../../codecs/imagequant/options';
@@ -16,6 +18,8 @@ import * as identity from '../../codecs/identity/encoder-meta';
 import * as oxiPNG from '../../codecs/oxipng/encoder-meta';
 import * as mozJPEG from '../../codecs/mozjpeg/encoder-meta';
 import * as webP from '../../codecs/webp/encoder-meta';
+import * as jxl from '../../codecs/jxl/encoder-meta';
+import * as avif from '../../codecs/avif/encoder-meta';
 import * as browserPNG from '../../codecs/browser-png/encoder-meta';
 import * as browserJPEG from '../../codecs/browser-jpeg/encoder-meta';
 import * as browserWebP from '../../codecs/browser-webp/encoder-meta';
@@ -47,6 +51,8 @@ const encoderOptionsComponentMap: {
   [oxiPNG.type]: OxiPNGEncoderOptions,
   [mozJPEG.type]: MozJpegEncoderOptions,
   [webP.type]: WebPEncoderOptions,
+  [jxl.type]: JXLEncoderOptions,
+  [avif.type]: AvifEncoderOptions,
   [browserPNG.type]: undefined,
   [browserJPEG.type]: BrowserJPEGEncoderOptions,
   [browserWebP.type]: BrowserWebPEncoderOptions,

src/components/compress/index.tsx

@@ -10,6 +10,8 @@ import * as identity from '../../codecs/identity/encoder-meta';
 import * as oxiPNG from '../../codecs/oxipng/encoder-meta';
 import * as mozJPEG from '../../codecs/mozjpeg/encoder-meta';
 import * as webP from '../../codecs/webp/encoder-meta';
+import * as jxl from '../../codecs/jxl/encoder-meta';
+import * as avif from '../../codecs/avif/encoder-meta';
 import * as browserPNG from '../../codecs/browser-png/encoder-meta';
 import * as browserJPEG from '../../codecs/browser-jpeg/encoder-meta';
 import * as browserWebP from '../../codecs/browser-webp/encoder-meta';
@@ -136,6 +138,8 @@ async function compressImage(
       case oxiPNG.type: return processor.oxiPngEncode(image, encodeData.options);
       case mozJPEG.type: return processor.mozjpegEncode(image, encodeData.options);
       case webP.type: return processor.webpEncode(image, encodeData.options);
+      case jxl.type: return processor.jxlEncode(image, encodeData.options);
+      case avif.type: return processor.avifEncode(image, encodeData.options);
       case browserPNG.type: return processor.browserPngEncode(image);
       case browserJPEG.type: return processor.browserJpegEncode(image, encodeData.options);
       case browserWebP.type: return processor.browserWebpEncode(image, encodeData.options);

src/lib/util.ts

@@ -104,6 +104,8 @@ const magicNumberToMimeType = new Map<RegExp, string>([
   [/^II*/, 'image/tiff'],
   [/^MM\x00*/, 'image/tiff'],
   [/^RIFF....WEBPVP8[LX ]/, 'image/webp'],
+  [/^\xff\x0a/, 'image/jpegxl'],
+  [/^\x00\x00\x00 ftypavif\x00\x00\x00\x00/, 'image/avif'],
 ]);
 
 export async function sniffMimeType(blob: Blob): Promise<string> {