feat: meson build

Author: superstructor

deno.json

@@ -18,15 +18,17 @@
     "demo": "deno run --allow-read --allow-write demo-deno.ts",
     "test": "deno test --allow-read --allow-write --no-check tests/deno/",
     "benchmark": "deno run --allow-read --allow-write bench/tiff.bench.ts",
-    "build": "deno task build:wasm",
-    "build:wasm": "./build-dual.sh all",
+    "build": "deno task build:wasm:meson",
+    "build:main:meson": "meson setup build-main --cross-file=scripts/emscripten.cross --prefix=$PWD/install -Dlibdir=wasm -Dbindir=wasm && meson compile -C build-main libtiff-main && meson install -C build-main",
+    "build:side:meson": "meson setup build-side --cross-file=scripts/emscripten.cross --prefix=$PWD/install -Dlibdir=wasm -Dbindir=wasm && meson compile -C build-side libtiff-side && meson install -C build-side",
+    "build:wasm:meson": "deno task build:main:meson && deno task build:side:meson",
     "build:npm": "deno run --allow-all _build_npm.ts",
-    "clean": "rm -rf build*/ dist/ npm/ && echo '✅ Cleaned all build artifacts'",
+    "clean": "rm -rf build-* install/ dist/ npm/ && echo '✅ Cleaned all build artifacts'",
     "check": "deno check src/lib/index.ts"
   },
   "compilerOptions": {
     "lib": ["deno.ns", "dom", "es2022", "deno.unstable"],
     "strict": true,
     "noImplicitReturns": true
   }
-}
+}

meson.build

@@ -0,0 +1,39 @@
+project('libtiff.wasm', 'c', version: '4.7.0', meson_version: '>=1.3.0')
+
+simd = get_option('simd')
+
+incs = include_directories('.', 'libtiff')
+
+tiff_sources = files(
+  'libtiff/tif_aux.c','libtiff/tif_close.c','libtiff/tif_codec.c','libtiff/tif_color.c','libtiff/tif_compress.c','libtiff/tif_dir.c','libtiff/tif_dirinfo.c','libtiff/tif_dirread.c','libtiff/tif_dirwrite.c','libtiff/tif_dumpmode.c','libtiff/tif_error.c','libtiff/tif_extension.c','libtiff/tif_flush.c','libtiff/tif_getimage.c','libtiff/tif_luv.c','libtiff/tif_lzw.c','libtiff/tif_next.c','libtiff/tif_open.c','libtiff/tif_packbits.c','libtiff/tif_pixarlog.c','libtiff/tif_predict.c','libtiff/tif_print.c','libtiff/tif_read.c','libtiff/tif_strip.c','libtiff/tif_swab.c','libtiff/tif_thunder.c','libtiff/tif_tile.c','libtiff/tif_version.c','libtiff/tif_warning.c','libtiff/tif_write.c','libtiff/tif_zip.c'
+)
+
+cargs = []
+if simd
+  cargs += ['-msimd128']
+endif
+
+# MAIN links to Emscripten zlib and libjpeg
+executable('libtiff-main',
+  files('wasm/libtiff_wasm_module.c') + tiff_sources,
+  include_directories: incs,
+  c_args: cargs,
+  link_args: [
+    '-sUSE_ZLIB=1','-sUSE_LIBJPEG=1','-sWASM=1','-sMODULARIZE=1','-sEXPORT_ES6=1','-sEXPORT_NAME=LibtiffModule',
+    '-sALLOW_MEMORY_GROWTH=1','-sNO_FILESYSTEM=1','-sEXPORTED_RUNTIME_METHODS=["cwrap","ccall","UTF8ToString"]','-O3','-flto'
+  ],
+  install: true,
+  install_dir: get_option('bindir')
+)
+
+# SIDE leaves zlib/jpeg to host
+shared_module('libtiff-side',
+  files('wasm/libtiff_wasm_side.c') + tiff_sources,
+  include_directories: incs,
+  name_prefix: '',
+  c_args: cargs,
+  link_args: ['-sSIDE_MODULE=2','-fPIC','-O3','-flto','-sERROR_ON_UNDEFINED_SYMBOLS=0','-sEXPORTED_FUNCTIONS=["_libtiff_wasm_version"]'],
+  install: true,
+  install_dir: get_option('libdir')
+)
+

meson.options

@@ -0,0 +1,3 @@
+option('main_module', type: 'boolean', value: true)
+option('side_module', type: 'boolean', value: true)
+option('simd', type: 'boolean', value: true)

scripts/emscripten.cross

@@ -0,0 +1,17 @@
+[binaries]
+c = 'emcc'
+cpp = 'em++'
+ar = 'emar'
+ranlib = 'emranlib'
+strip = 'llvm-strip'
+pkgconfig = 'em-pkg-config'
+
+[built-in options]
+c_args = []
+c_link_args = []
+
+[host_machine]
+system = 'emscripten'
+cpu_family = 'wasm32'
+cpu = 'wasm32'
+endian = 'little'

scripts/postinstall.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+import os, sys, shutil
+
+def main():
+    prefix = os.environ.get('MESON_INSTALL_DESTDIR_PREFIX') or (sys.argv[1] if len(sys.argv) > 1 else None)
+    if not prefix:
+        prefix = os.getcwd()
+    wasm_dir = os.path.join(prefix, 'wasm')
+    if not os.path.isdir(wasm_dir):
+        return 0
+    target = os.path.join(wasm_dir, 'libtiff-side.wasm')
+    if os.path.exists(target):
+        return 0
+    for f in os.listdir(wasm_dir):
+        if f.endswith('.wasm'):
+            shutil.copy2(os.path.join(wasm_dir,f), target)
+            break
+    return 0
+
+if __name__ == '__main__':
+    raise SystemExit(main())
+

wasm/libtiff_wasm_module.c

@@ -0,0 +1,8 @@
+#include <emscripten.h>
+#include "libtiff/tiffio.h"
+
+EMSCRIPTEN_KEEPALIVE
+const char* libtiff_wasm_version(void) {
+  return TIFFGetVersion();
+}
+

wasm/libtiff_wasm_side.c

@@ -0,0 +1,6 @@
+#include "libtiff/tiffio.h"
+
+const char* libtiff_wasm_version(void) {
+  return TIFFGetVersion();
+}
+