text stringlengths 1 93.6k |
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# offsets inside section
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h.char_offsets = [2 + 128 + 256] + [read_uint16(f) for _ in range(127)]
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read_uint16(f) # alignment
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assert f.tell() == 2 + 128 + 256
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save_ff_header(ff_name, h)
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# Glyphs
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f.seek(h.char_offsets[1])
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for ch in range(1,128):
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width = h.char_widths[ch]
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height = h.max_height
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offset = h.char_offsets[ch]
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assert f.tell() == offset
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if width == 0:
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continue
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img = Image.new("P", (width,height))
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attach_palette(img, pal)
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y = 0
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while y < height:
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x = 0
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while 1:
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byte = read_uint8(f)
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col = (byte & 0b11000000) >> 6
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img.putpixel((x,y), col)
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x += 1
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if x == width:
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break
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col = (byte & 0b00110000) >> 4
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img.putpixel((x,y), col)
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x += 1
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if x == width:
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break
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col = (byte & 0b00001100) >> 2
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img.putpixel((x,y), col)
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x += 1
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if x == width:
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break
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col = (byte & 0b00000011) >> 0
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img.putpixel((x,y), col)
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x += 1
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if x == width:
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break
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y += 1
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oname = "{}.{:03}.png".format(ff_name, ch)
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img.save(oname)
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output(oname)
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def export_ftb(ff_name, scale=3):
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""" Export font to custom binary ftb format
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"""
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h = load_ff_header(ff_name)
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with open(ff_name+'.ftb', 'wb') as f:
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write_uint32(f, 0x46425446)
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write_uint32(f, 0x00000001)
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write_uint32(f, 0x44414548)
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write_int16(f, h.max_height*scale)
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write_int16(f, 0)
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write_int16(f, 0)
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write_uint32(f, 0x50594c47)
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write_uint32(f, 128)
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cpos_y = 0
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for i in range(128):
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width = h.char_widths[i]*scale
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height = h.max_height*scale
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pos_x = 0
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pos_y = cpos_y
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advance = width
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bearing_x = 0
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bearing_y = 0
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write_uint32(f, i) # code
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write_int16(f, bearing_x);
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write_int16(f, bearing_y);
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write_int16(f, advance);
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write_int16(f, width);
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write_int16(f, height);
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