Commit Graph

4 Commits

Author SHA1 Message Date
Intubun eae3b70619 refactor(tcl-examples): rename TCL scripts, drop dead pcell.tcl, fix comments and naming
Rename *-magic.tcl scripts to *-tcl.tcl to match the -tcl.js test naming
convention. Delete the old bare-command pcell.tcl (used cellname create,
no magic:: prefix) and promote pcell-magic.tcl to pcell.tcl.

Fix misleading comment in magicWasm.c: Tclmagic_Init only bootstraps the
interpreter; magic:: commands are registered separately by
TclmagicRegisterCommands after magicMainInit. Align comment block
dashes in TclmagicRegisterCommands to match tclmagic.c style (62 dashes).

Replace intubun/tcl references in build scripts and CI with tcltk/tcl to
match the actual pinned repo in npm/tcl.ref. Also run both test suites
when build.sh is invoked with --test.
2026-05-21 12:42:51 +02:00
Intubun 64fcbb6581 wasm: increase initial memory to 64 MB and stack to 10 MB for larger designs 2026-05-21 12:42:51 +02:00
Enno Schnackenberg 6b3b2f5162 Add TCL-embedded WASM build variant alongside the existing non-TCL build
Bump VERSION to 8.3.645.

magic.wasm can now be built as two variants packaged in the same npm
release: notcl/ (legacy, magic's own parser) and tcl/ (intubun/tcl 9.x
statically linked, commands evaluated by Tcl_EvalEx). The TCL fork is
pinned via npm/tcl.ref and cloned/built by magic itself — the tcl/
checkout is treated as read-only and built out-of-source into
magic/build-tcl-wasm/.

Configure layer:
- New usingTk variable decoupled from usingTcl in scripts/configure.in
  + scripts/configure, so --with-tcl --without-tk is finally a valid
  combination. Native Linux Tcl+Tk builds keep their previous behaviour
  (both flags default to enabled).
- When usingTk is empty, configure passes -DMAGIC_NO_TK so the small
  number of remaining Tk callsites in tcltk/tclmagic.{h,c} compile out,
  and TKCOMMON_SRCS / USE_TK_STUBS are omitted from the link.

WASM build orchestration:
- toolchains/emscripten/build-tcl-wasm.sh builds libtcl9.x.a + libtclstub.a
  + tclConfig.sh out-of-source from a pristine intubun/tcl checkout.
- npm/build.sh grew a --variant=<tcl|notcl|both> flag and writes its
  outputs into npm/tcl/ and npm/notcl/. It also clones intubun/tcl with
  autocrlf=false at the SHA pinned by npm/tcl.ref.
- magic/Makefile (WASM block only): magicWasm.o is now compiled with
  DFLAGS_NOSTUB so Tcl_CreateInterp resolves to libtcl9.x directly
  before tclStubsPtr is set. magic.js link pulls in LIB_SPECS_NOSTUB
  and -ltclstub. After rules.mak include, magic: is a phony alias for
  magic.js so the generic ${MODULE} recipe doesn't fight it.
- toolchains/emscripten/defs.mak: add -sUSE_ZLIB=1 (libtcl9 references
  zlib), replace -sSTACK_SIZE=N with -Wl,-z,stack-size=N (emcc >=5
  rejects the setting form).
- magic/magicWasm.c bootstraps the embedded interp under MAGIC_WRAPPER
  (Tcl_CreateInterp -> Tcl_Init -> Tclmagic_Init) and routes
  run_command through Tcl_EvalEx.
- magic/magicTop.c: gate MagicVersion/Revision/CompileTime on
  !MAGIC_WRAPPER so they don't collide with the copies in
  tcltk/tclmagic.c when both objects land in the same wasm binary.

npm package:
- Subpath exports: ".", "./tcl", "./notcl". Default import keeps the
  pre-existing non-TCL behaviour for backward compatibility.
- examples/smoke-tcl.mjs exercises the TCL variant.

CI:
- main-wasm.yml clones intubun/tcl at the pinned ref, builds both
  variants via npm/build.sh --variant=both, runs the existing notcl
  test suite and the new TCL smoke test, and publishes only on a
  v<x.y.z>... git tag. Tag name (minus the leading v) becomes the
  npm version.
2026-05-21 12:42:43 +02:00
Intubun 8e8fada32f Add WASM entry point and Emscripten build wiring
The pieces that make Magic actually buildable as a WASM library.

* magic/magicWasm.c — new headless entry point exporting four
  functions used by the JS wrapper:
    - magic_wasm_init()           idempotent initialisation
    - magic_wasm_run_command(s)   dispatch one Magic command
    - magic_wasm_source_file(p)   execute a script from the VFS
    - magic_wasm_update()         drive a display-update cycle
  Sets CAD_ROOT=/ if unset, so embedded technology files under
  /magic/sys/ resolve correctly. Centers the command point inside
  GrScreenRect so commands route to the layout window client
  rather than the border/window-management client.

* utils/main.c, utils/main.h — split magicMain() into magicMainInit()
  + the dispatch loop. magicMainInit is idempotent (a static flag
  guards against re-initialisation) so JS callers can call any of
  the four wasm entry points first without sequencing.

* magic/Makefile — adds the WASM link target, gated by MAKE_WASM=1
  set from toolchains/emscripten/defs.mak. Conditionally compiles
  magicWasm.c into the main binary, links to magic.js and runs
  post-build.sh on the result.

* toolchains/emscripten/defs.mak — Emscripten linker flags (WASM=1,
  MODULARIZE, EXPORT_ES6, ALLOW_MEMORY_GROWTH, INITIAL_MEMORY=32M,
  STACK_SIZE=5M), the four EXPORTED_FUNCTIONS, and the embed-file
  bindings for the technology files under /magic/sys/.

* toolchains/emscripten/post-build.sh — patches Emscripten's ESM
  output so it works in pure Node.js ESM: aliases require()
  through createRequire, injects __filename / __dirname shims,
  and resyncs the ___emscripten_embedded_file_data constant from
  the wasm global section if Emscripten emitted a stale value.
  Idempotent and pinned to emsdk 3.1.56 (see WARNING in the
  header).

* toolchains/emscripten/README.md — full build documentation:
  quick-start via npm/build.sh, manual build, list of embedded
  files, exported C API, JavaScript usage example, and notes on
  CAD_ROOT, DISPLAY_SUSPEND, and the signal-API stubs.

* .gitignore — adds the WASM artefacts (magic.js, magic.wasm,
  magic.symbols), tightens the editor/OS cruft list, and keeps
  toolchains/emscripten/defs.mak tracked despite the `defs.mak`
  ignore rule.
2026-05-11 14:20:47 -04:00