Something went wrong. Try again.
My website. cameron.stream
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112#!/usr/bin/env python3"""Structural, shaping and deterministic-build checks for Brinewake.Run with the compiler requirements plus uharfbuzz==0.56.1 and pillow==12.3.0.Pass --proof /absolute/path.png to render an optional, public-safe proof sheet."""import argparseimport hashlibimport importlib.utilfrom pathlib import Pathimport subprocessimport sysimport tempfilefrom fontTools.ttLib import TTFontimport uharfbuzz as hbfrom PIL import Image, ImageDraw, ImageFont
ROOT = Path(__file__).resolve().parents[1]FONT = ROOT / 'public/fonts/brinewake-regular.ttf'WEB = FONT.with_suffix('.woff2')SOURCE = ROOT / 'scripts/generate-brinewake-font.py'FILES = [FONT, WEB, ROOT / 'public/fonts/brinewake-source.py']
def digest(): return [hashlib.sha256(p.read_bytes()).hexdigest() for p in FILES]before = digest()subprocess.run([sys.executable, str(SOURCE)], check=True)assert before == digest(), 'Rebuild changed tracked font output'assert SOURCE.read_bytes() == FILES[2].read_bytes(), 'Download source differs'with tempfile.TemporaryDirectory(prefix='brinewake-download-') as directory: folder = Path(directory) downloaded = folder / 'brinewake-source.py' downloaded.write_bytes(FILES[2].read_bytes()) subprocess.run([sys.executable, str(downloaded)], check=True, cwd=folder) assert (folder / FONT.name).read_bytes() == FONT.read_bytes() assert (folder / WEB.name).read_bytes() == WEB.read_bytes()expected = set(range(32, 127)) | {160, 8211, 8212, 8216, 8217, 8220, 8221, 8230}tt = TTFont(FONT)web = TTFont(WEB)assert set(tt.getBestCmap()) == expectedassert tt.getBestCmap() == web.getBestCmap()assert tt['name'].getDebugName(1) == 'Brinewake'for font_file in (tt, web): assert 'Designed with Co and Letta Code.' in font_file['name'].getDebugName(10) assert all('Astra' not in record.toUnicode() for record in font_file['name'].names)assert 'Designed with Co and Letta Code' in (ROOT / 'public/fonts/brinewake-license.txt').read_text()assert tt['OS/2'].fsType == 0assert tt['OS/2'].sCapHeight == 700assert tt['OS/2'].sxHeight == 490for code, name in tt.getBestCmap().items(): glyph = tt['glyf'][name] assert glyph.compile(tt['glyf']) == web['glyf'][name].compile(web['glyf']), name advance, lsb = tt['hmtx'][name] assert advance > 0, name if code in (32, 160): assert glyph.numberOfContours == 0 else: assert glyph.numberOfContours > 0, name assert -270 <= glyph.yMin < glyph.yMax <= 820, (name, glyph.yMin, glyph.yMax) assert glyph.xMax <= advance + 20, (name, glyph.xMax, advance) assert lsb == glyph.xMinfor upper in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ': assert tt['glyf'][upper].compile(tt['glyf']) != tt['glyf'][upper.lower()].compile(tt['glyf'])
face = hb.Face(FONT.read_bytes())font = hb.Font(face)font.scale = (1000, 1000)def shape(text, kern=True): buf=hb.Buffer(); buf.add_str(text); buf.guess_segment_properties() hb.shape(font, buf, {'kern': kern}) return buffor text in ['Brinewake', 'Soft water. Sharp stone.', 'Hamburgefontsiv', 'AVATAR To Wa Yo ffl fj gy pq', '“An ebb, a swell; a shore.”', ''.join(chr(c) for c in sorted(expected))]: buf=shape(text) assert all(g.codepoint != 0 for g in buf.glyph_infos), text assert all(p.x_advance > 0 for p in buf.glyph_positions), textfor pair in ['AV', 'To', 'Wa', 'Yo', 'ov', 'fi']: on=sum(p.x_advance for p in shape(pair).glyph_positions) off=sum(p.x_advance for p in shape(pair, False).glyph_positions) assert on < off, (pair,on,off)# The font advertises fallback honestly, not a substituted fake accent.assert shape('é').glyph_infos[0].codepoint == 0
spec=importlib.util.spec_from_file_location('brinewake_source', SOURCE)module=importlib.util.module_from_spec(spec);spec.loader.exec_module(module)for text in ['Brinewake', 'Soft water. Sharp stone.', 'Hamburgefontsiv', 'AVATAR To Wa Yo ffl fj gy pq']: run=shape(text); x=0; previous=None for c,pos in zip(text,run.glyph_positions): g=module.move(module.G[c][0],x) if previous is not None: assert g.intersection(previous).area < 1, f'Colliding outlines in {text}: {c}' previous=g;x+=pos.x_advance
args=argparse.ArgumentParser();args.add_argument('--proof', type=Path);opt=args.parse_args()if opt.proof: im=Image.new('RGB',(1800,1950),'#ede9df');d=ImageDraw.Draw(im) y=30 for size,text in [(170,'Brinewake'),(110,'Soft water. Sharp stone.'),(100,'Hamburgefontsiv'), (82,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'),(100,'abcdefghijklmnopqrstuvwxyz'), (100,'0123456789 & @ ? !'),(100,'AVATAR To Wa Yo ffl fj gy pq'), (72,'“An ebb, a swell; a shore.”'),(48,'Brinewake moves between a cut and a curve.'), (32,'Minimum recommended size: 32 pixels. Soft water, sharp stone.'), (150,'a e s g R &'),(88,'!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'), (90,'00112233445566778899')]: f=ImageFont.truetype(str(FONT),size) d.text((35,y),text,font=f,fill='#163b39') y+=size*1.32 im.save(opt.proof)print('PASS: 103-character cmap; distinct cases; bounded outlines; TTF/WOFF2 parity;')print(' HarfBuzz coverage + kerning; proof-word noncollision; byte-identical rebuild.')print('TTF SHA256', digest()[0])print('WOFF2 SHA256', digest()[1])