text stringlengths 1 93.6k |
|---|
assert f.tell() == 2 + 128 + 256
|
write_madspack(ff_name, [f])
|
def write_glyph(f, ff_name, h, n):
|
iname = "{}.{:03}.png".format(ff_name, n)
|
if not os.path.exists(iname):
|
h.char_widths[n] = 0
|
h.char_offsets[n] = f.tell()
|
else:
|
img = Image.open(iname)
|
width,height = img.size
|
if h.max_width < width:
|
h.max_width = width
|
if h.max_height < height:
|
h.max_height = height
|
h.char_widths[n] = width
|
h.char_offsets[n] = f.tell()
|
y = 0
|
while y < height:
|
x = 0
|
eol = False
|
while not eol:
|
byte = 0b00000000
|
for shift in (6,4,2,0):
|
ind = get_col_index(img, img.getpixel((x,y)))
|
byte = byte | (ind << shift)
|
x += 1
|
if x == width:
|
eol = True
|
break
|
write_uint8(f, byte)
|
y += 1
|
def write_ff_header(f, h):
|
write_uint8(f, h.max_height)
|
write_uint8(f, h.max_width)
|
assert f.tell() == 2
|
for b in h.char_widths[1:]:
|
write_uint8(f, b)
|
write_uint8(f, 0)
|
assert f.tell() == 2 + 128
|
for o in h.char_offsets[1:]:
|
write_uint16(f, o)
|
write_uint16(f, 0)
|
assert f.tell() == 2 + 128 + 256
|
def read_ff(ff_name):
|
"""
|
FF file: 1 part MADSPACK
|
header
|
max_height: 1 byte
|
max_width: 1 byte
|
glyphs widths: 128 bytes
|
glyphs offsets: 2 x 128 byte
|
glyphs
|
...
|
"""
|
check_ext(ff_name, '.FF')
|
parts = read_madspack(ff_name)
|
save_madspack(ff_name, parts)
|
f = parts[0]
|
# Header
|
h = Record()
|
h.max_height = read_uint8(f)
|
h.max_width = read_uint8(f)
|
# glyphs width in pixels
|
# glyph height is max_height
|
# null has width 0
|
h.char_widths = [0] + [read_uint8(f) for _ in range(127)]
|
read_uint8(f) # alignment to 128
|
# space occupied by glyph is
|
# math.ceil((glyph_width * max_height) / 4.0) # or is is rounded per line ?
|
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