diff --git a/codecs/build-wasi-sdk.sh b/codecs/build-wasi-sdk.sh new file mode 100755 index 00000000..9c3abafb --- /dev/null +++ b/codecs/build-wasi-sdk.sh @@ -0,0 +1,3 @@ +#!/bin/sh -e +docker build -t squoosh-wasi-sdk - < ../wasi-sdk.Dockerfile +docker run -it --rm -v $PWD:/src squoosh-wasi-sdk "$@" diff --git a/codecs/mozjpeg/Makefile b/codecs/mozjpeg/Makefile index bbdd7ade..10ef6b7a 100644 --- a/codecs/mozjpeg/Makefile +++ b/codecs/mozjpeg/Makefile @@ -1,47 +1,50 @@ CODEC_URL := https://github.com/mozilla/mozjpeg/archive/v3.3.1.tar.gz CODEC_DIR := node_modules/mozjpeg +CODEC_BUILD_DIR := $(CODEC_DIR)/build CODEC_OUT_RELATIVE := .libs/libjpeg.a rdswitch.o -CODEC_OUT := $(addprefix $(CODEC_DIR)/, $(CODEC_OUT_RELATIVE)) -ENVIRONMENT = worker +CODEC_OUT := $(addprefix $(CODEC_BUILD_DIR)/, $(CODEC_OUT_RELATIVE)) -OUT_JS := enc/mozjpeg_enc.js enc/mozjpeg_node_enc.js dec/mozjpeg_node_dec.js -OUT_WASM := $(OUT_JS:.js=.wasm) +OUT_WASM := enc/mozjpeg_enc.wasm + +OPTIMIZE := 3 + +override CC = $(WASI_SDK_PREFIX)/bin/clang +override CXX = $(WASI_SDK_PREFIX)/bin/clang++ +override CXXFLAGS += --sysroot=$(WASI_SDK_PREFIX)/share/wasi-sysroot -O$(OPTIMIZE) +override CFLAGS += --sysroot=$(WASI_SDK_PREFIX)/share/wasi-sysroot -O$(OPTIMIZE) +override RANLIB = $(WASI_SDK_PREFIX)/bin/ranlib + +# Without this export, configure doesn’t seem to see $CC and $CFLAGS +export .PHONY: all clean -all: $(OUT_JS) +all: $(OUT_WASM) -# Define dependencies for all variations of build artifacts. -$(filter enc/%,$(OUT_JS)): enc/mozjpeg_enc.cpp -$(filter dec/%,$(OUT_JS)): dec/mozjpeg_dec.cpp - -enc/mozjpeg_node_enc.js dec/mozjpeg_node_dec.js: ENVIRONMENT = node - -%.js: $(CODEC_OUT) +$(OUT_WASM): $(CODEC_OUT) $(CXX) \ + -I $(CODEC_BUILD_DIR) \ -I $(CODEC_DIR) \ ${CXXFLAGS} \ ${LDFLAGS} \ - --closure 1 \ - --bind \ - -s ALLOW_MEMORY_GROWTH=1 \ - -s MODULARIZE=1 \ - -s TEXTDECODER=2 \ - -s ENVIRONMENT=$(ENVIRONMENT) \ - -s EXPORT_ES6=1 \ -o $@ \ - $+ + enc/mozjpeg_enc.cpp \ + $(CODEC_OUT) # This one is a bit special: there is no rule for .libs/libjpeg.a # so we use libjpeg.la which implicitly builds that one instead. -$(CODEC_DIR)/.libs/libjpeg.a: $(CODEC_DIR)/Makefile - $(MAKE) -C $(CODEC_DIR) libjpeg.la +$(CODEC_BUILD_DIR)/.libs/libjpeg.a: $(CODEC_BUILD_DIR)/Makefile + $(MAKE) -C $(CODEC_BUILD_DIR) libjpeg.la -$(CODEC_DIR)/rdswitch.o: $(CODEC_DIR)/Makefile - $(MAKE) -C $(CODEC_DIR) rdswitch.o +$(CODEC_BUILD_DIR)/rdswitch.o: $(CODEC_BUILD_DIR)/Makefile + $(MAKE) -C $(CODEC_BUILD_DIR) rdswitch.o -$(CODEC_DIR)/Makefile: $(CODEC_DIR)/configure - cd $(CODEC_DIR) && ./configure \ +$(CODEC_BUILD_DIR)/Makefile: $(CODEC_DIR)/configure + mkdir -p $(CODEC_BUILD_DIR) && \ + cd $(CODEC_BUILD_DIR) && \ + ../configure \ + --target=wasm32-unknown-wasi \ + --host=wasm32-unknown-wasi \ --disable-shared \ --without-turbojpeg \ --without-simd \ @@ -59,7 +62,10 @@ $(CODEC_DIR)/configure.ac: $(CODEC_DIR) $(CODEC_DIR): mkdir -p $@ curl -sL $(CODEC_URL) | tar xz --strip 1 -C $@ + cp $(WASI_SDK_PREFIX)/share/misc/config.* $(CODEC_DIR) + # ^ Monkey-path autoconf files as Ubuntu’s autoconf tools are too old + # to recognize WASI clean: - $(RM) $(OUT_JS) $(OUT_WASM) - $(MAKE) -C $(CODEC_DIR) clean + $(RM) $(OUT_WASM) + $(RM) -r $(CODEC_BUILD_DIR) diff --git a/codecs/mozjpeg/enc/mozjpeg_enc.cpp b/codecs/mozjpeg/enc/mozjpeg_enc.cpp index 27388587..acd729ce 100644 --- a/codecs/mozjpeg/enc/mozjpeg_enc.cpp +++ b/codecs/mozjpeg/enc/mozjpeg_enc.cpp @@ -1,10 +1,6 @@ -#include -#include -#include -#include -#include -#include -#include +#include +#include + #include "config.h" #include "jpeglib.h" @@ -12,14 +8,6 @@ extern "C" { #include "cdjpeg.h" } -using namespace emscripten; - -// MozJPEG doesn’t expose a numeric version, so I have to do some fun C macro -// hackery to turn it into a string. More details here: -// https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html -#define xstr(s) str(s) -#define str(s) #s - struct MozJpegOptions { int quality; bool baseline; @@ -39,26 +27,34 @@ 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; -} +struct DynArray { + size_t size; + uint8_t* ptr; +}; -thread_local const val Uint8Array = val::global("Uint8Array"); +__attribute__((export_name("encode"))) intptr_t* encode(uintptr_t* image_in, + int image_width, + int image_height) { + uint8_t* image_buffer = reinterpret_cast(image_in); -val encode(std::string image_in, int image_width, int image_height, MozJpegOptions opts) { - uint8_t* image_buffer = (uint8_t*)image_in.c_str(); + struct MozJpegOptions opts = { + 10, // int quality; + false, // bool baseline; + false, // bool arithmetic; + true, // bool progressive; + true, // bool optimize_coding; + 0, // int smoothing; + JCS_YCbCr, // int color_space; + 3, // int quant_table; + false, // bool trellis_multipass; + false, // bool trellis_opt_zero; + false, // bool trellis_opt_table; + 1, // int trellis_loops; + true, // bool auto_subsample; + 2, // int chroma_subsample; + false, // bool separate_chroma_quality; + 75 // int chroma_quality; + }; // The code below is basically the `write_JPEG_file` function from // https://github.com/mozilla/mozjpeg/blob/master/example.c @@ -199,35 +195,24 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio /* Step 7: release JPEG compression object */ - auto js_result = Uint8Array.new_(typed_memory_view(size, output)); - /* This is an important step since it will release a good deal of memory. */ jpeg_destroy_compress(&cinfo); - free(output); /* And we're done! */ - return js_result; + auto result = new DynArray(); + result->size = size; + result->ptr = output; + return reinterpret_cast(result); } -EMSCRIPTEN_BINDINGS(my_module) { - value_object("MozJpegOptions") - .field("quality", &MozJpegOptions::quality) - .field("baseline", &MozJpegOptions::baseline) - .field("arithmetic", &MozJpegOptions::arithmetic) - .field("progressive", &MozJpegOptions::progressive) - .field("optimize_coding", &MozJpegOptions::optimize_coding) - .field("smoothing", &MozJpegOptions::smoothing) - .field("color_space", &MozJpegOptions::color_space) - .field("quant_table", &MozJpegOptions::quant_table) - .field("trellis_multipass", &MozJpegOptions::trellis_multipass) - .field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero) - .field("trellis_opt_table", &MozJpegOptions::trellis_opt_table) - .field("trellis_loops", &MozJpegOptions::trellis_loops) - .field("chroma_subsample", &MozJpegOptions::chroma_subsample) - .field("auto_subsample", &MozJpegOptions::auto_subsample) - .field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality) - .field("chroma_quality", &MozJpegOptions::chroma_quality); - - function("version", &version); - function("encode", &encode); +__attribute__((export_name("alloc"))) uintptr_t* alloc(size_t size) { + return reinterpret_cast(malloc(size)); } + +__attribute__((export_name("dealloc"))) void dealloc(uintptr_t* ptr) { + return free(ptr); +} + +int main() { + return 0; +} \ No newline at end of file diff --git a/codecs/mozjpeg/enc/mozjpeg_enc.d.ts b/codecs/mozjpeg/enc/mozjpeg_enc.d.ts deleted file mode 100644 index 3c730ae3..00000000 --- a/codecs/mozjpeg/enc/mozjpeg_enc.d.ts +++ /dev/null @@ -1,37 +0,0 @@ -export const enum MozJpegColorSpace { - GRAYSCALE = 1, - RGB, - YCbCr, -} - -export interface EncodeOptions { - quality: number; - baseline: boolean; - arithmetic: boolean; - progressive: boolean; - optimize_coding: boolean; - smoothing: number; - color_space: MozJpegColorSpace; - quant_table: number; - trellis_multipass: boolean; - trellis_opt_zero: boolean; - trellis_opt_table: boolean; - trellis_loops: number; - auto_subsample: boolean; - chroma_subsample: number; - separate_chroma_quality: boolean; - chroma_quality: number; -} - -export interface MozJPEGModule extends EmscriptenWasm.Module { - encode( - data: BufferSource, - width: number, - height: number, - options: EncodeOptions, - ): Uint8Array; -} - -declare var moduleFactory: EmscriptenWasm.ModuleFactory; - -export default moduleFactory; diff --git a/codecs/mozjpeg/enc/mozjpeg_enc.js b/codecs/mozjpeg/enc/mozjpeg_enc.js deleted file mode 100644 index 593be2af..00000000 --- a/codecs/mozjpeg/enc/mozjpeg_enc.js +++ /dev/null @@ -1,60 +0,0 @@ - -var Module = (function() { - var _scriptDir = import.meta.url; - - return ( -function(Module) { - Module = Module || {}; - - -var f;f||(f=typeof Module !== 'undefined' ? 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