WOFF builder

OTFbuild/CLAUDE.md

@@ -1,18 +1,14 @@
 # OTFbuild
 
-Python toolchain that builds an OpenType (CFF) font from the TGA sprite sheets used by the bitmap font engine.
+Python toolchain that builds an OpenType (CFF) and Web Open Font (WOFF2) font from the TGA sprite sheets used by the bitmap font engine.
 
 ## Building
 
 ```bash
-pip install fonttools
-python3 OTFbuild/build_font.py src/assets -o OTFbuild/TerrarumSansBitmap.otf
+# builds both OTF and WOFF2
+make all
 ```
 
-Options:
-- `--no-bitmap` — skip EBDT/EBLC bitmap strike (faster builds for iteration)
-- `--no-features` — skip GSUB/GPOS OpenType features
-
 ## Debugging with HarfBuzz
 
 Install `uharfbuzz` for shaping tests:
@@ -118,6 +114,7 @@ print(f"{name}: advance={w}, has_outlines={has_outlines}")
 | `opentype_features.py` | Generates GSUB/GPOS feature code for feaLib |
 | `keming_machine.py` | Generates kerning pairs from glyph kern masks |
 | `hangul.py` | Hangul syllable composition and jamo GSUB data |
+| `otf2woff2.py` | OTF to WOFF2 wrapper |
 
 ### OpenType features generated (`opentype_features.py`)
 

OTFbuild/Makefile

@@ -0,0 +1,19 @@
+PYTHON   ?= python3
+ASSETS   ?= ../src/assets
+OTF      = TerrarumSansBitmap.otf
+WOFF2    = TerrarumSansBitmap.woff2
+
+all: $(OTF) $(WOFF2)
+
+$(OTF): $(wildcard $(ASSETS)/*.tga) build_font.py font_builder.py glyph_parser.py \
+        bitmap_tracer.py tga_reader.py keming_machine.py hangul.py sheet_config.py \
+        opentype_features.py
+	$(PYTHON) build_font.py $(ASSETS) -o $@
+
+$(WOFF2): $(OTF) otf2woff2.py
+	$(PYTHON) otf2woff2.py $< $@
+
+clean:
+	rm -f $(OTF) $(WOFF2)
+
+.PHONY: all clean

OTFbuild/otf2woff2.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+"""Convert an OTF/TTF font to WOFF2 format."""
+import sys
+from fontTools.ttLib import TTFont
+
+src, dst = sys.argv[1], sys.argv[2]
+font = TTFont(src)
+font.flavor = 'woff2'
+font.save(dst)
+print(f"  Written {dst}")

OTFbuild/requirements.txt

@@ -1 +1,2 @@
 fonttools>=4.47.0
+brotli>=1.1.0