u

src/sea-entry.cjs

@@ -56,21 +56,13 @@ function getProjectRoot() {
             ? JSON.parse(fs.readFileSync(nativeMapFile, 'utf8'))
             : {};
 
-        // Redirect native .node loading to distDir and preload libvips from distDir if present
+        // Redirect native .node loading to distDir if present
         const origDlopen = process.dlopen;
         process.dlopen = function (mod, filename, flags) {
             const relFromRuntime = path.relative(runtimeDir, filename);
             const mappedName = nativeNodes[relFromRuntime] || path.basename(filename);
             const distCandidate = path.join(distDir, mappedName);
             const target = fs.existsSync(distCandidate) ? distCandidate : filename;
-            if (mappedName.startsWith('sharp-')) {
-                const vipsPath = path.join(distDir, 'libvips-cpp.so.8.18.7');
-                if (fs.existsSync(vipsPath)) {
-                    try {
-                        origDlopen.call(process, { exports: {} }, vipsPath, os.constants.dlopen.RTLD_NOW | os.constants.dlopen.RTLD_GLOBAL);
-                    } catch {}
-                }
-            }
             return flags !== undefined ? origDlopen.call(process, mod, target, flags) : origDlopen.call(process, mod, target);
         };
 

src/services/zplService.js

@@ -1,4 +1,4 @@
-import { createCanvas, loadImage } from 'canvas';
+import { optimizeImage } from 'wasm-image-optimization';
 
 /**
  * Converts a PNG image buffer into Zebra ZPL II Graphic Field (^GFA) format.
@@ -10,12 +10,8 @@ import { createCanvas, loadImage } from 'canvas';
  * @returns {Promise<string>} Full ZPL string ready to send to a Zebra printer.
  */
 export async function pngToZpl(pngBuffer, quantity = 1) {
-    const img = await loadImage(pngBuffer);
-    const canvas = createCanvas(img.width, img.height);
-    const ctx = canvas.getContext('2d');
-    ctx.drawImage(img, 0, 0);
-    const imgData = ctx.getImageData(0, 0, img.width, img.height);
-    const { data, width: w, height: h } = imgData;
+    const raw = await optimizeImage({ image: pngBuffer, format: 'raw' });
+    const { width: w, height: h, data } = raw;
 
     const bytesPerRow = Math.ceil(w / 8);
     const totalBytes = bytesPerRow * h;