Function create_bmp

pattern/web/pdf/utils.py:270–276

(data, bits, width, height)

# create_bmp
def create_bmp(data, bits, width, height):
    info = struct.pack('<IiiHHIIIIII', 40, width, height, 1, bits, 0, len(data), 0, 0, 0, 0)
    assert len(info) == 40, len(info)
    header = struct.pack('<ccIHHI', 'B', 'M', 14+40+len(data), 0, 0, 14+40)
    assert len(header) == 14, len(header)
    # XXX re-rasterize every line
    return header+info+data