mirror of
https://github.com/curioustorvald/Terrarum-sans-bitmap.git
synced 2026-03-13 22:46:07 +09:00
99 lines
3.3 KiB
Python
99 lines
3.3 KiB
Python
"""
|
|
Compose 11,172 Hangul syllables (U+AC00-U+D7A3) from jamo sprite pieces.
|
|
Also composes Hangul Compatibility Jamo (U+3130-U+318F).
|
|
|
|
Ported from HangulCompositor.kt and TerrarumSansBitmap.kt.
|
|
"""
|
|
|
|
from typing import Dict, List, Tuple
|
|
|
|
from glyph_parser import ExtractedGlyph, GlyphProps, get_hangul_jamo_bitmaps
|
|
import sheet_config as SC
|
|
|
|
|
|
def _compose_bitmaps(a, b, w, h):
|
|
"""OR two bitmaps together."""
|
|
result = []
|
|
for row in range(h):
|
|
row_data = []
|
|
for col in range(w):
|
|
av = a[row][col] if row < len(a) and col < len(a[row]) else 0
|
|
bv = b[row][col] if row < len(b) and col < len(b[row]) else 0
|
|
row_data.append(1 if av or bv else 0)
|
|
result.append(row_data)
|
|
return result
|
|
|
|
|
|
def _compose_bitmap_into(target, source, w, h):
|
|
"""OR source bitmap into target (mutates target)."""
|
|
for row in range(min(h, len(target), len(source))):
|
|
for col in range(min(w, len(target[row]), len(source[row]))):
|
|
if source[row][col]:
|
|
target[row][col] = 1
|
|
|
|
|
|
def compose_hangul(assets_dir) -> Dict[int, ExtractedGlyph]:
|
|
"""
|
|
Compose all Hangul syllables and compatibility jamo.
|
|
Returns a dict of codepoint -> ExtractedGlyph.
|
|
"""
|
|
get_jamo = get_hangul_jamo_bitmaps(assets_dir)
|
|
cell_w = SC.W_HANGUL_BASE
|
|
cell_h = SC.H
|
|
result = {}
|
|
|
|
# Compose Hangul Compatibility Jamo (U+3130-U+318F)
|
|
for c in range(0x3130, 0x3190):
|
|
index = c - 0x3130
|
|
bitmap = get_jamo(index, 0)
|
|
props = GlyphProps(width=cell_w)
|
|
result[c] = ExtractedGlyph(c, props, bitmap)
|
|
|
|
# Compose 11,172 Hangul syllables (U+AC00-U+D7A3)
|
|
print(" Composing 11,172 Hangul syllables...")
|
|
for c in range(0xAC00, 0xD7A4):
|
|
c_int = c - 0xAC00
|
|
index_cho = c_int // (SC.JUNG_COUNT * SC.JONG_COUNT)
|
|
index_jung = c_int // SC.JONG_COUNT % SC.JUNG_COUNT
|
|
index_jong = c_int % SC.JONG_COUNT # 0 = no jongseong
|
|
|
|
# Map to jamo codepoints
|
|
cho_cp = 0x1100 + index_cho
|
|
jung_cp = 0x1161 + index_jung
|
|
jong_cp = 0x11A8 + index_jong - 1 if index_jong > 0 else 0
|
|
|
|
# Get sheet indices
|
|
i_cho = SC.to_hangul_choseong_index(cho_cp)
|
|
i_jung = SC.to_hangul_jungseong_index(jung_cp)
|
|
if i_jung is None:
|
|
i_jung = 0
|
|
i_jong = 0
|
|
if jong_cp != 0:
|
|
idx = SC.to_hangul_jongseong_index(jong_cp)
|
|
if idx is not None:
|
|
i_jong = idx
|
|
|
|
# Get row positions
|
|
cho_row = SC.get_han_initial_row(i_cho, i_jung, i_jong)
|
|
jung_row = SC.get_han_medial_row(i_cho, i_jung, i_jong)
|
|
jong_row = SC.get_han_final_row(i_cho, i_jung, i_jong)
|
|
|
|
# Get jamo bitmaps
|
|
cho_bitmap = get_jamo(i_cho, cho_row)
|
|
jung_bitmap = get_jamo(i_jung, jung_row)
|
|
|
|
# Compose
|
|
composed = _compose_bitmaps(cho_bitmap, jung_bitmap, cell_w, cell_h)
|
|
if index_jong > 0:
|
|
jong_bitmap = get_jamo(i_jong, jong_row)
|
|
_compose_bitmap_into(composed, jong_bitmap, cell_w, cell_h)
|
|
|
|
# Determine advance width
|
|
advance_width = cell_w + 1 if i_jung in SC.HANGUL_PEAKS_WITH_EXTRA_WIDTH else cell_w
|
|
|
|
props = GlyphProps(width=advance_width)
|
|
result[c] = ExtractedGlyph(c, props, composed)
|
|
|
|
print(f" Hangul composition done: {len(result)} glyphs")
|
|
return result
|