Adolfo Reyna
e68909d64d
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- Migrates tactility-app-development from ~/.hermes/skills/ into .claude/skills/ for repo co-location - Adds AGENTS.md with local workstation context, hardware table, board-direct build/env wrapper (PYTHONPATH fix), ELF missing-symbol triage, app patterns (immersive, QVGA rail, tutorial 2-row, GameKit bubbling, screenshot rate-limit), and skill index Refs: personal Gitea mirror
1.7 KiB
1.7 KiB
Per-Book Offline Bible Assets
Source: https://github.com/sajeevavahini/bibles — Zefania XML World English Bible.xml ~4.8MB, format XMLBIBLE/BIBLEBOOK/CHAPTER/VERS attrs bnumber/bname/cnumber/vnumber.
Problem
- 4.8MB XML → 3.8MB blob + 304KB idx monolith = too big for RAM, packaging bloats
.appto 4.2MB monolith load. - Device has ~8MB PSRAM but LVGL/lwIP compete; loading whole bible at once OOM-prone.
Solution: per-book split
Output assets/bible/:
books.json:[{bnumber, bname, verses, chapters}, ...]66 entries<bnum>.bin(01.bin..66.bin): concatenated NUL-terminated UTF-8 verse strings<bnum>.idx: binary: header 8 bytes: magicBIBKascii, version u16 (1), count u32; then per entry 8 bytes:offset u32 LE, cnum u16 LE, vnum u16 LEsorted by chapter/verse.
Worst book: Psalms 19.bin ~220KB, still fits. Total ~4.1MB split but loaded one at a time → RAM tiny.
Converter
Apps/BibleVerse/tools/convert_bible.py (also template):
Usage:
python3 tools/convert_bible.py /path/to/World\ English\ Bible.xml assets/bible/
# or fetch then convert
Implementation sketch (see templates/convert_bible.py):
- xml.etree.ElementTree iterative parse
BIBLEBOOKto keep memory low. - Accumulate bin buffer + idx entries per book.
- Write books.json last.
Hybrid resolution on device
// 1. Try embedded A: assets via tt_app_get_assets_path
// 2. Fallback scan /sdcard/bibles/WEB/ same binary format for user-provided translations
// 3. build target: load BookInfo array, then on demand load_book(bnumber) frees previous.
Verify packaging
tar tvf build/BibleVerse.app | grep "\.bin" | wc -l # expect 66
ls -lh assets/bible/*.bin | sort -k5 -hr | head