267 lines
8.9 KiB
Python
Executable File
267 lines
8.9 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import math
|
|
import sys
|
|
import os
|
|
import re
|
|
|
|
CP_MAX = 0x10FFFF
|
|
FONT_CPP = "data/font.cpp"
|
|
FONT_HEIGHT = 12
|
|
PTRS_PER_LINE = 8
|
|
|
|
class FontTool:
|
|
def __init__(self):
|
|
with open(FONT_CPP) as font_cpp:
|
|
self.font_cpp_data = font_cpp.read()
|
|
font_data = ([ int(s, 16) for s in re.findall(r'\w+', re.search(r'font_data[^{]*{([^;]+);', self.font_cpp_data, re.MULTILINE | re.DOTALL)[1]) ])
|
|
font_ptrs = ([ int(s, 16) for s in re.findall(r'\w+', re.search(r'font_ptrs[^{]*{([^;]+);', self.font_cpp_data, re.MULTILINE | re.DOTALL)[1]) ])
|
|
font_ranges = ([ int(s, 16) for s in re.findall(r'\w+', re.search(r'font_ranges[^{]*{([^;]+);', self.font_cpp_data, re.MULTILINE | re.DOTALL)[1]) ])
|
|
self.code_points = [ False for _ in range(CP_MAX + 2) ]
|
|
ptrs_ptr = 0
|
|
for i in range(len(font_ranges) // 2 - 1):
|
|
for cp in range(font_ranges[i * 2], font_ranges[i * 2 + 1] + 1):
|
|
base = font_ptrs[ptrs_ptr]
|
|
self.code_points[cp] = font_data[base : (base + math.ceil(font_data[base] * FONT_HEIGHT / 4) + 1)]
|
|
ptrs_ptr += 1
|
|
|
|
def commit(self):
|
|
new_ranges = []
|
|
in_range = False
|
|
for i, data in enumerate(self.code_points):
|
|
if in_range and not data:
|
|
new_ranges[-1].append(i - 1)
|
|
in_range = False
|
|
elif not in_range and data:
|
|
in_range = True
|
|
new_ranges.append([ i ])
|
|
font_data_lines_hex = [ [ '0x%02X' % v for v in d ] for d in filter(lambda x: x, self.code_points) ]
|
|
font_data_lines = [ len(h) > 1 and h[0] + ', ' + ', '.join(h[1 :]) + ',' or '0x00, ' for h in font_data_lines_hex ]
|
|
font_cpp_data = re.sub(r'font_data[^{]*{([^;]+);', 'font_data[] = {\n ' + '\n '.join(font_data_lines) + '\n};', self.font_cpp_data)
|
|
font_ptrs_blocks = []
|
|
data_ptr = 0
|
|
for ran in new_ranges:
|
|
block = []
|
|
for cp in range(ran[0], ran[1] + 1):
|
|
block.append(data_ptr)
|
|
data_ptr += math.ceil(self.code_points[cp][0] * FONT_HEIGHT / 4) + 1
|
|
font_ptrs_wrapped = []
|
|
for i in range(0, len(block), PTRS_PER_LINE):
|
|
font_ptrs_wrapped.append(', '.join([ '0x%08X' % v for v in block[i : (i + PTRS_PER_LINE)] ]))
|
|
font_ptrs_blocks.append(',\n '.join(font_ptrs_wrapped))
|
|
font_cpp_data = re.sub(r'font_ptrs[^{]*{([^;]+);', 'font_ptrs[] = {\n ' + ',\n\n '.join(font_ptrs_blocks) + ',\n};', font_cpp_data)
|
|
font_ranges_lines = [ '{ 0x%06X, 0x%06X },' % ( r[0], r[1] ) for r in new_ranges ]
|
|
font_cpp_data = re.sub(r'font_ranges[^{]*{([^;]+);', 'font_ranges[][2] = {\n ' + '\n '.join(font_ranges_lines) + '\n { 0, 0 },\n};', font_cpp_data)
|
|
with open(FONT_CPP, 'w') as font_cpp:
|
|
font_cpp.write(font_cpp_data)
|
|
|
|
def pack(cp_matrix):
|
|
width = 0
|
|
for row in cp_matrix:
|
|
if width < len(row):
|
|
width = len(row)
|
|
cp_data = [ width ]
|
|
bits = 8
|
|
for row in cp_matrix:
|
|
padded = row + [ 0 ] * (width - len(row))
|
|
for cv in padded:
|
|
if bits == 8:
|
|
cp_data.append(0)
|
|
bits = 0
|
|
cp_data[-1] |= (cv & 3) << bits
|
|
bits += 2
|
|
return cp_data
|
|
|
|
def unpack(cp_data):
|
|
ptr = 1
|
|
bits = 0
|
|
buf = 0
|
|
cp_matrix = []
|
|
for y in range(FONT_HEIGHT):
|
|
cp_matrix.append([])
|
|
for x in range(cp_data[0]):
|
|
if bits == 0:
|
|
buf = cp_data[ptr]
|
|
ptr += 1
|
|
bits = 8
|
|
cp_matrix[-1].append(buf & 3)
|
|
buf >>= 2
|
|
bits -= 2
|
|
return cp_matrix
|
|
|
|
class RawReader:
|
|
def __init__(self, path):
|
|
self.code_points = [ False for _ in range(CP_MAX + 2) ]
|
|
with open(path) as raw:
|
|
items = [ int(v) for v in re.findall(r'[0-9]+', raw.read()) ]
|
|
ptr = 0
|
|
while ptr <= len(items) - 2:
|
|
cp = items[ptr]
|
|
width = items[ptr + 1]
|
|
ptr += 2
|
|
matrix = []
|
|
for i in range(ptr, ptr + width * FONT_HEIGHT, width):
|
|
matrix.append(items[i : (i + width)])
|
|
ptr += width * FONT_HEIGHT
|
|
self.code_points[cp] = FontTool.pack(matrix)
|
|
|
|
class BDFReader:
|
|
class ReadBDFError:
|
|
def __init__(line_number, message):
|
|
super(RuntimeError, self).__init__('line %i: %s' % ( line_number, message ))
|
|
|
|
def __init__(self, path, xoffs, yoffs):
|
|
self.code_points = [ False for _ in range(CP_MAX + 2) ]
|
|
item_re = re.compile(r'[^ \n\r]+')
|
|
with open(path) as bdf:
|
|
global_dw = False
|
|
startchar = False
|
|
bitmap = False
|
|
char_dw = False
|
|
char_cp = False
|
|
char_bbx = False
|
|
skip = 0
|
|
for line_number, line in enumerate(bdf):
|
|
if skip:
|
|
skip -= 1
|
|
continue
|
|
items = re.findall(item_re, line)
|
|
if startchar and items[0] == 'ENDCHAR':
|
|
if len(bitmap) != char_bbx[1]:
|
|
raise ReadBDFError(line_number, "invalid bitmap data")
|
|
cp_matrix = []
|
|
for y in range(FONT_HEIGHT):
|
|
cp_matrix.append([])
|
|
for x in range(char_dw):
|
|
cv = 0
|
|
xx = x + xoffs
|
|
yy = FONT_HEIGHT - 1 - y + yoffs
|
|
if xx >= char_bbx[2] and xx < char_bbx[0] + char_bbx[2] and yy >= char_bbx[3] and yy < char_bbx[1] + char_bbx[3]:
|
|
cv = bitmap[char_bbx[1] - 1 - (yy - char_bbx[3])][xx - char_bbx[2]] * 3
|
|
cp_matrix[-1].append(cv)
|
|
self.code_points[char_cp] = FontTool.pack(cp_matrix)
|
|
startchar = False
|
|
bitmap = False
|
|
char_dw = False
|
|
char_cp = False
|
|
char_bbx = False
|
|
elif bitmap != False:
|
|
if len(items) != 1:
|
|
raise ReadBDFError(line_number, "missing bitmap data")
|
|
bits = []
|
|
for ch in items[0]:
|
|
cv = int(ch, 16)
|
|
bits += [ cv & 8 and 1 or 0, cv & 4 and 1 or 0, cv & 2 and 1 or 0, cv & 1 and 1 or 0 ]
|
|
bitmap.append(bits[ : char_bbx[0]])
|
|
elif items[0] == 'SIZE':
|
|
if len(items) != 4:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
elif items[0] == 'FONTBOUNDINGBOX':
|
|
if len(items) != 5:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
elif not startchar and items[0] == 'STARTCHAR':
|
|
startchar = True
|
|
char_dw = global_dw
|
|
elif items[0] == 'STARTPROPERTIES':
|
|
if len(items) != 2:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
skip = int(items[1]) + 1
|
|
elif startchar and items[0] == 'BITMAP':
|
|
bitmap = []
|
|
elif startchar and items[0] == 'BBX':
|
|
if len(items) != 5:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
char_bbx = [ int(items[1]), int(items[2]), int(items[3]), int(items[4]) ]
|
|
elif startchar and items[0] == 'ENCODING':
|
|
if len(items) != 2:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
char_cp = int(items[1])
|
|
elif items[0] == 'METRICSSET':
|
|
if len(items) != 2:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
if int(items[1]) == 1:
|
|
raise ReadBDFError(line_number, "font does not support writing direction 0")
|
|
elif items[0] == 'DWIDTH':
|
|
if len(items) != 3:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
if int(items[2]) != 0:
|
|
raise ReadBDFError(line_number, "vertical component of dwidth vector is non-zero")
|
|
char_dw = int(items[1])
|
|
if not startchar:
|
|
global_dw = char_dw
|
|
|
|
if __name__ == "__main__":
|
|
def print_usage_and_exit():
|
|
print("""Usage:
|
|
* fonttool.py addbdf FIRST LAST BDFFILE [XOFFS YOFFS]
|
|
* fonttool.py addraw FIRST LAST RAWFILE
|
|
* fonttool.py remove FIRST [LAST]
|
|
* fonttool.py inspect FIRST [LAST]
|
|
|
|
LAST defaults to FIRST, XOFFS and YOFFS default to 0. BDF is an
|
|
archaic bitmap font format; look it up.
|
|
|
|
"Raw" files are simply ASCII-encoded white-space delimited lists
|
|
of decimal integer constants. These lists of integers encode
|
|
characters as any number of consecutive character description
|
|
structures laid out as follows:
|
|
* the code point corresponding to the character being described;
|
|
* the width in pixels of the character being described;
|
|
* width times %i brightness levels between 0 and 3, a row-major matrix.
|
|
|
|
This script is also an importable module.""" % FONT_HEIGHT)
|
|
exit(1)
|
|
|
|
if len(sys.argv) < 3:
|
|
print_usage_and_exit()
|
|
|
|
cp_first = int(sys.argv[2])
|
|
if len(sys.argv) < 4:
|
|
cp_last = cp_first
|
|
else:
|
|
cp_last = int(sys.argv[3])
|
|
if cp_first < 0 or cp_last > CP_MAX or cp_first > cp_last:
|
|
print('invalid range')
|
|
exit(1)
|
|
|
|
ft = FontTool()
|
|
|
|
if sys.argv[1] == 'addbdf':
|
|
if len(sys.argv) < 5:
|
|
print_usage_and_exit()
|
|
xoffs = 0
|
|
yoffs = 0
|
|
if len(sys.argv) >= 6:
|
|
xoffs = int(sys.argv[5])
|
|
if len(sys.argv) >= 7:
|
|
yoffs = int(sys.argv[6])
|
|
bdfr = BDFReader(sys.argv[4], xoffs, yoffs)
|
|
for i in range(cp_first, cp_last + 1):
|
|
if bdfr.code_points[i] and not ft.code_points[i]:
|
|
ft.code_points[i] = bdfr.code_points[i]
|
|
ft.commit()
|
|
elif sys.argv[1] == 'addraw':
|
|
if len(sys.argv) < 5:
|
|
print_usage_and_exit()
|
|
rr = RawReader(sys.argv[4])
|
|
for i in range(cp_first, cp_last + 1):
|
|
if rr.code_points[i] and not ft.code_points[i]:
|
|
ft.code_points[i] = rr.code_points[i]
|
|
ft.commit()
|
|
elif sys.argv[1] == 'remove':
|
|
for i in range(cp_first, cp_last + 1):
|
|
ft.code_points[i] = False
|
|
ft.commit()
|
|
elif sys.argv[1] == 'inspect':
|
|
lut = [ ' ', '░░', '▒▒', '▓▓' ]
|
|
for i in range(cp_first, cp_last + 1):
|
|
if ft.code_points[i]:
|
|
print('code point %i (%c)' % ( i, i ))
|
|
print('')
|
|
print('\n'.join([ ''.join([ lut[ch] for ch in row ]) for row in FontTool.unpack(ft.code_points[i]) ]))
|
|
print('')
|
|
else:
|
|
print('code point %i (%c) is not available' % ( i, i ))
|
|
else:
|
|
print_usage_and_exit()
|