[0724] WASM Support for STEM (ImGui)

.github/workflows/ci-macos-wasm.yml

@@ -0,0 +1,89 @@
+name: Build on macOS for WASM
+on:
+  push:
+    branches: [main]
+    paths:
+      - "src/**"
+      - "!src/Plugins/Macos/**"
+      - "!src/Plugins/Windows/**"
+      - "tests/**"
+      - "lolly/**"
+      - "moebius/**"
+      - "xmake.lua"
+      - 'xmake/options.lua'
+      - 'xmake/requires.lua'
+      - 'xmake/targets/**'
+      - "xmake/packages.lua"
+      - "xmake/packages/**"
+      - ".github/workflows/ci-macos-wasm.yml"
+      - "TeXmacs/tests/*.scm"
+      - "3rdparty/**"
+  pull_request:
+    branches: [main]
+    paths:
+      - "src/**"
+      - "!src/Plugins/Macos/**"
+      - "!src/Plugins/Windows/**"
+      - "tests/**"
+      - "lolly/**"
+      - "moebius/**"
+      - "xmake.lua"
+      - 'xmake/options.lua'
+      - 'xmake/requires.lua'
+      - 'xmake/targets/**'
+      - "xmake/packages.lua"
+      - "xmake/packages/**"
+      - ".github/workflows/ci-macos-wasm.yml"
+      - "TeXmacs/tests/*.scm"
+      - "3rdparty/**"
+  workflow_dispatch:
+
+env:
+  XMAKE_ROOT: y
+  INSTALL_DIR: tmp/build/packages/app.mogan/
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [macos-14]
+        arch: [arm64]
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 45
+    if: always()
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: cache xmake
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{github.workspace}}/build/.build_cache
+            /Users/runner/.xmake
+          key: xmake-${{ runner.os }}-wasm-${{ hashFiles('xmake/vars.lua', 'lolly/xmake.lua', 'moebius/xmake.lua') }}
+
+      - name: set XMAKE_GLOBALDIR
+        run: echo "XMAKE_GLOBALDIR=${{ runner.workspace }}/xmake-global" >> $GITHUB_ENV
+
+      - uses: xmake-io/github-action-setup-xmake@v1
+        with:
+          xmake-version: v3.0.4
+          actions-cache-folder: '.xmake-cache'
+
+      - name: xmake repo --update
+        run: xmake repo --update
+
+      - name: cache packages from xrepo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.XMAKE_GLOBALDIR }}/.xmake/packages
+          key: xrepo-${{ runner.os }}-${{ matrix.arch }}-${{ hashFiles('xmake/vars.lua', 'lolly/xmake.lua', 'moebius/xmake.lua') }}
+
+      - name: config
+        run: xmake config --policies=build.ccache -o ${{ runner.workspace }}/build -m releasedbg -p wasm --qt_frontend=no --yes
+
+      - name: build
+        run: xmake build --yes -vD stem

.gitignore

@@ -46,11 +46,14 @@ docs/**/plugin_binary.md
 
 # Binary of the goldfish plugin
 TeXmacs/plugins/goldfish/bin/goldfish
+TeXmacs/plugins/goldfish/bin/*.wasm
+TeXmacs/plugins/goldfish/bin/*.js
+TeXmacs/plugins/goldfish/bin/*.html
 goldfish.dSYM/
 *.sym
 *goldfish.pdb
 
 # font
 TeXmacs/fonts/opentype/noto
 
-record
+record

3rdparty/libaesgm.lua

@@ -10,7 +10,7 @@ package("liii-libaesgm")
 
     set_sourcedir(path.join(os.scriptdir(), "libaesgm"))
 
-    on_install("linux", "macosx", "windows", "mingw", function (package)
+    on_install("linux", "macosx", "windows", "mingw", "wasm", function (package)
         if package:is_plat("windows", "mingw") and package:is_arch("arm", "arm64") then
             -- Windows is always little endian
             io.replace("brg_endian.h", [[

3rdparty/pdfhummus.lua

@@ -30,7 +30,7 @@ package("liii-pdfhummus")
             end
         end
     end)
-    on_install("linux", "windows", "mingw", "macosx", function (package)
+    on_install("linux", "windows", "mingw", "macosx", "wasm", function (package)
         local configs = {}
         if package:config("shared") then
             configs.kind = "shared"

3rdparty/pdfhummus/xmake.lua

@@ -1,5 +1,6 @@
 -- originally from https://github.com/xmake-io/xmake-repo/pull/1709
 
+includes("../libaesgm.lua")
 option("libtiff", {description = "Enable libtiff", default = false})
 option("libpng", {description = "Enable libpng", default = false})
 option("libjpeg", {description = "Enable libjpeg", default = false})
@@ -17,14 +18,14 @@ end
 if has_config("openssl") then
     add_requires("openssl")
 end
-add_requires("freetype", "zlib", "libaesgm")
+add_requires("freetype", "zlib", "liii-libaesgm")
 target("pdfhummus")
     set_kind("$(kind)")
     add_files("PDFWriter/*.cpp")
     add_headerfiles("(PDFWriter/*.h)")
     add_packages("freetype")
     add_packages("libtiff", "libpng", "libjpeg", "openssl")
-    add_packages("libaesgm", "zlib")
+    add_packages("liii-libaesgm", "zlib")
     if has_package("libtiff") then
         add_defines("_INCLUDE_TIFF_HEADER")
         add_cxflags("-Wno-deprecated-declarations")

3rdparty/tbox/xmake.lua

@@ -31,12 +31,6 @@ if has_config("coroutine") then
     add_cxflags("gcc::-Wno-error=dangling-pointer")
 end
 
--- set wasm toolchain
-if is_plat("wasm") then
-    add_requires("emscripten")
-    set_toolchains("emcc@emscripten")
-end
-
 -- add build modes
 add_rules("mode.release", "mode.debug", "mode.profile", "mode.coverage", "mode.valgrind", "mode.asan", "mode.tsan", "mode.ubsan")
 if is_mode("debug") then

bin/wasm_server.py

@@ -0,0 +1,62 @@
+from http.server import ThreadingHTTPServer, SimpleHTTPRequestHandler
+import sys
+import os
+
+root = os.path.abspath(sys.argv[1])
+
+html = os.path.join(root, "stem.html")
+js = os.path.join(root, "stem.js")
+
+#if not os.path.exists(html) and os.path.exists(js):
+with open(html, "w", encoding="utf-8") as f:
+    f.write("""<!doctype html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>stem</title>
+  <style>
+    html, body, canvas {
+      margin: 0;
+      width: 100%;
+      height: 100%;
+      overflow: hidden;
+    }
+  </style>
+</head>
+<body>
+  <canvas id="canvas"></canvas>
+
+  <script>
+    var Module = {
+      canvas: document.getElementById('canvas')
+    };
+  </script>
+
+  <script src="stem.js"></script>
+</body>
+</html>
+""")
+
+class Handler(SimpleHTTPRequestHandler):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, directory=root, **kwargs)
+
+    def end_headers(self):
+        self.send_header(
+            "Cross-Origin-Opener-Policy",
+            "same-origin"
+        )
+        self.send_header(
+            "Cross-Origin-Embedder-Policy",
+            "require-corp"
+        )
+        super().end_headers()
+
+server = ThreadingHTTPServer(
+    ("127.0.0.1", 8000),
+    Handler
+)
+
+print("Serving on http://127.0.0.1:8000/stem.html")
+
+server.serve_forever()

devel/0724.md

@@ -0,0 +1,21 @@
+# [0724] WASM Support for STEM (ImGui)
+## What
+- 在构建脚本中添加了适配 wasm 的逻辑
+- bin 中新增 wasm_server.py
+- `tm_server.cpp` `pipe_link.cpp` 中调整 WASM 条件编译选项，以通过编译（目前没有实现 WASM 的多进程接口）
+- `im_tm_widget` 中添加符合 Emscripten 3.1.56 的调用（在条件编译中）
+
+## 如何测试
+测试默认的 Qt 构建不被改变
+```
+xmake f 
+xmake b stem
+```
+
+测试 WASM 构建
+```
+xmake f -p wasm
+xmake b stem
+xmake r stem
+```
+浏览器打开监听的地址

lolly/xmake.lua

@@ -21,11 +21,6 @@ if is_plat("mingw") and is_host("windows") then
     set_toolchains("mingw@mingw-w64")
 end
 
-if is_plat("wasm") then
-    add_requires("emscripten 3.1.25")
-    set_toolchains("emcc@emscripten")
-end
-
 -- Options
 option("malloc")
     set_default("default")