[api-major] Add openjpeg.wasm to pdf.js (bug 1935076)

In order to fix bug 1935076, we'll have to add a pure js fallback in case wasm is disabled
or simd isn't supported. Unfortunately, this fallback will take some space.

So, the main goal of this patch is to reduce the overall size (by ~93k).
As a side effect, it should make easier to use an other wasm file (which must export
_jp2_decode, _malloc and _free).

test/driver.js

@@ -31,6 +31,7 @@ const { GenericL10n, parseQueryString, SimpleLinkService } = pdfjsViewer;
 const WAITING_TIME = 100; // ms
 const CMAP_URL = "/build/generic/web/cmaps/";
 const STANDARD_FONT_DATA_URL = "/build/generic/web/standard_fonts/";
+const WASM_URL = "/build/generic/web/wasm/";
 const IMAGE_RESOURCES_PATH = "/web/images/";
 const VIEWER_CSS = "../build/components/pdf_viewer.css";
 const VIEWER_LOCALE = "en-US";
@@ -631,6 +632,7 @@ class Driver {
           password: task.password,
           cMapUrl: CMAP_URL,
           standardFontDataUrl: STANDARD_FONT_DATA_URL,
+          wasmUrl: WASM_URL,
           disableAutoFetch: !task.enableAutoFetch,
           pdfBug: true,
           useSystemFonts: task.useSystemFonts,

test/test_manifest.json

@@ -6371,6 +6371,14 @@
     "rounds": 1,
     "type": "eq"
   },
+  {
+    "id": "issue19326_main_thread_fetch",
+    "file": "pdfs/issue19326.pdf",
+    "md5": "b4d937017daf439a6318501428e0c6ba",
+    "rounds": 1,
+    "type": "eq",
+    "useWorkerFetch": false
+  },
   {
     "id": "bug1140761",
     "file": "pdfs/bug1140761.pdf",

test/unit/test_utils.js

@@ -28,6 +28,8 @@ const STANDARD_FONT_DATA_URL = isNodeJS
   ? "./external/standard_fonts/"
   : "../../external/standard_fonts/";
 
+const WASM_URL = isNodeJS ? "./external/openjpeg/" : "../../external/openjpeg/";
+
 class DefaultFileReaderFactory {
   static async fetch(params) {
     if (isNodeJS) {
@@ -44,6 +46,7 @@ function buildGetDocumentParams(filename, options) {
     ? TEST_PDFS_PATH + filename
     : new URL(TEST_PDFS_PATH + filename, window.location).href;
   params.standardFontDataUrl = STANDARD_FONT_DATA_URL;
+  params.wasmUrl = WASM_URL;
 
   for (const option in options) {
     params[option] = options[option];

test/unit/unit_test.html

@@ -22,6 +22,7 @@
 
         "display-cmap_reader_factory": "../../src/display/cmap_reader_factory.js",
         "display-standard_fontdata_factory": "../../src/display/standard_fontdata_factory.js",
+        "display-wasm_factory": "../../src/display/wasm_factory.js",
         "display-fetch_stream": "../../src/display/fetch_stream.js",
         "display-network": "../../src/display/network.js",
         "display-node_stream": "../../src/display/stubs.js",

test/webserver.mjs

@@ -38,6 +38,7 @@ const MIME_TYPES = {
   ".log": "text/plain",
   ".bcmap": "application/octet-stream",
   ".ftl": "text/plain",
+  ".wasm": "application/wasm",
 };
 const DEFAULT_MIME_TYPE = "application/octet-stream";