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feat: add ghostscript wasm
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‎packages/ghostscript/.gitignore‎

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out/

‎packages/ghostscript/README.md‎

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# gs-wasm
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## Special Thank ❤️
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[@jsscheller]((https://github.com/jsscheller/ghostscript-wasm)) - for build script.

‎packages/ghostscript/build.sh‎

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#!/bin/bash
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set -euo pipefail
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OUT_DIR="$PWD/out"
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ROOT="$PWD"
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EMCC_FLAGS_DEBUG="-Os -g3"
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EMCC_FLAGS_RELEASE="-Oz -flto"
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export CPPFLAGS="-I$OUT_DIR/include"
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export LDFLAGS="-L$OUT_DIR/lib"
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export PKG_CONFIG_PATH="$OUT_DIR/pkgconfig"
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export EM_PKG_CONFIG_PATH="$PKG_CONFIG_PATH"
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export CFLAGS="$EMCC_FLAGS_RELEASE"
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export CXXFLAGS="$CFLAGS"
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mkdir -p "$OUT_DIR"
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cd "$ROOT/ghostpdl"
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emconfigure ./autogen.sh \
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CCAUX=gcc CFLAGSAUX= CPPFLAGSAUX= \
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--host="wasm32-unknown-linux" \
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--prefix="$OUT_DIR" \
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--disable-threading \
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--disable-cups \
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--disable-dbus \
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--disable-gtk \
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--with-drivers=FILES \
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--with-arch_h="$ROOT/build/arch_wasm.h"
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export GS_LDFLAGS="\
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-lnodefs.js -lworkerfs.js \
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--pre-js "$ROOT/build/pre.js" \
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--post-js "$ROOT/build/post.js" \
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--closure 1 \
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-s STACK_SIZE=131072 \
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-s USE_ZLIB=1 \
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-s EXPORT_ES6=1 \
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-s BINARYEN_EXTRA_PASSES=\"--pass-arg=max-func-params@39\" \
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-s WASM_BIGINT=1 \
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-s INITIAL_MEMORY=67108864 \
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-s ALLOW_MEMORY_GROWTH=1 \
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-s EXPORTED_RUNTIME_METHODS='[\"callMain\",\"FS\",\"NODEFS\",\"WORKERFS\",\"ENV\"]' \
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-s INCOMING_MODULE_JS_API='[\"noInitialRun\",\"noFSInit\",\"locateFile\",\"preRun\",\"instantiateWasm\"]' \
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-s NO_DISABLE_EXCEPTION_CATCHING=1 \
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-s MODULARIZE=1 \
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"
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emmake make \
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XE=".js" \
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LDFLAGS="$LDFLAGS $GS_LDFLAGS" \
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-j install
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# Copy to dist
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mkdir -p "$ROOT/dist"
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cd "$ROOT/dist"
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cp $ROOT/ghostpdl/bin/gs.* .
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cp $ROOT/build/gs.cjs .
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# Apply version & create d.ts
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node "$ROOT/build/post-build.js"
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# Cleanup
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cd "$ROOT/ghostpdl"
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git clean -xdf
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git checkout .
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echo "Done!"

‎packages/ghostscript/build/arch_wasm.h‎

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/* Copyright (C) 2001-2018 Artifex Software, Inc.
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All Rights Reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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Refer to licensing information at http://www.artifex.com or contact
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Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
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CA 94945, U.S.A., +1(415)492-9861, for further information.
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*/
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/* Parameters derived from machine and compiler architecture. */
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/* This file was generated mechanically by genarch.c, for a 64bit */
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/* Microsoft Windows machine, compiling with MSVC. */
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/* ---------------- Scalar alignments ---------------- */
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#define ARCH_ALIGN_SHORT_MOD 2
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#define ARCH_ALIGN_INT_MOD 4
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#define ARCH_ALIGN_LONG_MOD 4
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#define ARCH_ALIGN_PTR_MOD 4
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#define ARCH_ALIGN_FLOAT_MOD 4
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#define ARCH_ALIGN_DOUBLE_MOD 8
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/* ---------------- Scalar sizes ---------------- */
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#define ARCH_LOG2_SIZEOF_CHAR 0
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#define ARCH_LOG2_SIZEOF_SHORT 1
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#define ARCH_LOG2_SIZEOF_INT 2
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#define ARCH_LOG2_SIZEOF_LONG 2
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#ifndef ARCH_SIZEOF_GX_COLOR_INDEX
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#define ARCH_SIZEOF_GX_COLOR_INDEX 8
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#endif
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#define ARCH_SIZEOF_PTR 4
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#define ARCH_SIZEOF_FLOAT 4
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#define ARCH_SIZEOF_DOUBLE 8
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#define ARCH_FLOAT_MANTISSA_BITS 24
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#define ARCH_DOUBLE_MANTISSA_BITS 53
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/* ---------------- Unsigned max values ---------------- */
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#define ARCH_MAX_UCHAR ((unsigned char)0xff + (unsigned char)0)
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#define ARCH_MAX_USHORT ((unsigned short)0xffff + (unsigned short)0)
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#define ARCH_MAX_UINT ((unsigned int)~0 + (unsigned int)0)
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#define ARCH_MAX_ULONG ((unsigned long)~0L + (unsigned long)0)
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/* ---------------- Miscellaneous ---------------- */
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#define ARCH_IS_BIG_ENDIAN 0
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#define ARCH_PTRS_ARE_SIGNED 0
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#define ARCH_FLOATS_ARE_IEEE 1
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#define ARCH_ARITH_RSHIFT 2
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#define ARCH_DIV_NEG_POS_TRUNCATES 1
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#define ARCH_SIZEOF_SIZE_T 4
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#define ARCH_MAX_SIZE_T ((unsigned int)~0 + (unsigned int)0)

‎packages/ghostscript/build/gs.cjs‎

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module.exports = function (...args) {
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return import('./gs.js')
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.then(m => m.default.call(this, ...args))
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}

‎packages/ghostscript/build/gs.d.ts‎

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interface GSModule extends EmscriptenModule {
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version: string,
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callMain: (args: string[]) => Promise<number>
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FS: typeof FS,
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NODEFS: Emscripten.FileSystemType,
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WORKERFS: Emscripten.FileSystemType,
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}
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declare const initGS: EmscriptenModuleFactory<GSModule>
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export default initGS

‎packages/ghostscript/build/post-build.js‎

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import { writeFile, readFile } from 'node:fs/promises'
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import { fileURLToPath } from 'url';
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import { dirname, resolve } from 'path'
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import { EOL } from 'node:os'
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const __filename = fileURLToPath(import.meta.url)
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const __dirname = dirname(__filename)
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async function applyVersion () {
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const pkgJSON = JSON.parse(await readFile(resolve(__dirname, '../package.json')))
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const fileJS = resolve(__dirname, '../dist/gs.js')
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const origin = await readFile(fileJS)
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await writeFile(fileJS, origin.toString().replace('__VERSION__', pkgJSON.version))
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}
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async function createDTS () {
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const emscriptenDTS = await readFile(resolve(__dirname, '../../../node_modules/@types/emscripten/index.d.ts'))
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const gsDTS = await readFile(resolve(__dirname, './gs.d.ts'))
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await writeFile(resolve(__dirname, '../dist/gs.d.ts'), `${emscriptenDTS}${EOL}${gsDTS}`)
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}
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async function main () {
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await applyVersion()
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await createDTS()
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}
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main()

‎packages/ghostscript/build/post.js‎

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Object.assign(FS, {
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["init"]: FS.init,
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["mkdir"]: FS.mkdir,
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["mount"]: FS.mount,
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["chdir"]: FS.chdir,
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["writeFile"]: FS.writeFile,
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["readFile"]: FS.readFile,
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["createLazyFile"]: FS.createLazyFile,
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["setIgnorePermissions"]: function(val) {
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FS.ignorePermissions = val
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},
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})
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Module['version'] = '__VERSION__'

‎packages/ghostscript/build/pre.js‎

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Module["noInitialRun"] = true;

‎packages/ghostscript/ghostpdl‎

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Subproject commit 7145885041bb52cc23964f0aa2aec1b1c82b5908

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