awaforge

tableSbix

AGPL-3.0-onlyRelease 2L4

Table sbix — Standard Bitmap Graphics (OT §8.10, Apple).

Module tableSbix | Source packages/front/office/fonts/src/table/sbix.js | Deps fontErrors, fontReader, fontTag | Worker-safe yes

Per-glyph bitmaps (PNG/JPG/TIFF) organised into ppem strikes. Mainly used for Apple emoji.

Exports

Symbol Type Description
parseSbix function (bytes, numGlyphs) => { version, flags, strikes: Strike[] }. Each strike exposes getGlyphBitmap(gid).
tableSbix factory Factory.

Usage

import fw from '@awacloud/fw';
import { fw_require, modules } from '@awacloud/fonts';

for (const m of [...fw_require, ...modules]) fw.runtime.register(m);
const { parseSbix } = fw.runtime.resolve('tableSbix');
const sbix = parseSbix(sfnt.tables.sbix.bytes, font.maxp.numGlyphs);
const png = sbix.strikes[0].getGlyphBitmap(42); // { originOffsetX, originOffsetY, graphicType, data } | null

Notes

  • graphicType is a 4-char tag (png , jpg , tiff).
  • numGlyphs is required (read from maxp).

See also