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brother_ql_analyze now supports .bin files for the QL-800 series

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This commit is contained in:
Philipp Klaus
2017-09-16 12:15:43 +02:00
parent b60d140ff4
commit f2c7dbcbce
1 changed files with 51 additions and 10 deletions
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brother_ql/reader.py
+51 -10
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@@ -6,6 +6,7 @@ import logging
import sys
from PIL import Image
from PIL.ImageOps import colorize
import numpy as np
from builtins import bytes
@@ -17,10 +18,12 @@ OPCODES = {
b'\x00': ("preamble", -1, "Preamble, 200-300x 0x00 to clear comamnd buffer"),
b'\x4D': ("compression", 1, ""),
b'\x67': ("raster", -1, ""),
b'\x77': ("2-color raster", -1, ""),
b'\x0C': ("print", 0, "print intermediate page"),
b'\x1A': ("print", 0, "print final page"),
b'\x1b\x40': ("init", 0, "initialization"),
b'\x1b\x69\x61': ("mode setting", 1, ""),
b'\x1b\x69\x21': ("automatic status",1, ""),
b'\x1b\x69\x7A': ("media/quality", 10, "print-media and print-quality"),
b'\x1b\x69\x4D': ("various", 1, "Auto cut flag in bit 7"),
b'\x1b\x69\x41': ("cut-every", 1, "cut every n-th page"),
@@ -28,6 +31,7 @@ OPCODES = {
b'\x1b\x69\x64': ("margins", 2, ""),
b'\x1b\x69\x55\x77\x01': ('amedia', 127, "Additional media information command"),
b'\x1b\x69\x55\x4A': ('jobid', 14, "Job ID setting command"),
b'\x1b\x69\x58\x47': ("request_config", 0, "Request transmission of .ini config file of printer"),
b'\x1b\x69\x53': ('status request', 0, "A status information request sent to the printer"),
b'\x80\x20\x42': ('status response',29, "A status response received from the printer"),
}
@@ -136,7 +140,7 @@ def chunker(data, raise_exception=False):
opcode_def = OPCODES[opcode]
num_bytes = len(opcode)
if opcode_def[1] > 0: num_bytes += opcode_def[1]
if opcode_def[0] == 'raster':
if 'raster' in opcode_def[0]:
num_bytes += data[2] + 2
#payload = data[len(opcode):num_bytes]
instructions.append(data[:num_bytes])
@@ -212,7 +216,7 @@ def merge_specific_instructions(chunks, join_preamble=True, join_raster=True):
opcode = match_opcode(instruction)
if join_preamble and OPCODES[opcode][0] == 'preamble' and last_opcode == 'preamble':
instruction_buffer += instruction
elif join_raster and OPCODES[opcode][0] == 'raster' and last_opcode == 'raster':
elif join_raster and 'raster' in OPCODES[opcode][0] and 'raster' in last_opcode:
instruction_buffer += instruction
else:
if instruction_buffer:
@@ -231,9 +235,13 @@ class BrotherQLReader(object):
self.brother_file = brother_file
self.mwidth, self.mheight = None, None
self.raster_no = None
self.rows = []
self.black_rows = []
self.red_rows = []
self.compression = False
self.page = 1
self.two_color_printing = False
self.cut_at_end = False
self.high_resolution_printing = False
def analyse(self):
instructions = self.brother_file.read()
@@ -244,12 +252,13 @@ class BrotherQLReader(object):
if opcode_def[0] == 'init':
self.mwidth, self.mheight = None, None
self.raster_no = None
self.rows = []
self.black_rows = []
self.red_rows = []
payload = instruction[len(opcode):]
logger.info(" {} ({}) --> found! (payload: {})".format(opcode_def[0], hex_format(opcode), hex_format(payload)))
if opcode_def[0] == 'compression':
self.compression = payload[0] == 0x02
if opcode_def[0] == 'raster':
if 'raster' in opcode_def[0]:
rpl = bytes(payload[2:]) # raster payload
if self.compression:
row = bytes()
@@ -269,7 +278,19 @@ class BrotherQLReader(object):
if index >= len(rpl): break
else:
row = rpl
self.rows.append(row)
if opcode_def[0] == 'raster':
self.black_rows.append(row)
else: # 2-color
if payload[0] == 0x01:
self.black_rows.append(row)
elif payload[0] == 0x02:
self.red_rows.append(row)
else:
raise NotImplementedError("color: 0x%x" % payload[0])
if opcode_def[0] == 'expanded':
self.two_color_printing = bool(payload[0] & (1 << 0))
self.cut_at_end = bool(payload[0] & (1 << 3))
self.high_resolution_printing = bool(payload[0] & (1 << 6))
if opcode_def[0] == 'media/quality':
self.raster_no = struct.unpack('<L', payload[4:8])[0]
self.mwidth = instruction[len(opcode) + 2]
@@ -277,10 +298,30 @@ class BrotherQLReader(object):
fmt = " media width: {}mm, media length: {}mm, raster no: {}dots"
logger.info(fmt.format(self.mwidth, self.mlength, self.raster_no))
if opcode_def[0] == 'print':
size = (len(self.rows[0])*8, len(self.rows))
data = bytes(b''.join(self.rows))
data = bytes([2**8 + ~byte for byte in data]) # invert b/w
im = Image.frombytes("1", size, data, decoder_name='raw')
print("Len of black rows: ", len(self.black_rows))
print("Len of red rows: ", len(self.red_rows))
def get_im(rows):
if not len(rows): return None
size = (len(rows[0])*8, len(rows))
data = bytes(b''.join(rows))
data = bytes([2**8 + ~byte for byte in data]) # invert b/w
im = Image.frombytes("1", size, data, decoder_name='raw')
return im
im_black, im_red = (get_im(rows) for rows in (self.black_rows, self.red_rows))
if not self.two_color_printing:
im = im_black
else:
im = im_black.convert("RGBA")
im_red = im_red.convert("L")
im_red = colorize(im_red, (255, 0, 0), (255, 255, 255))
im_red = im_red.convert("RGBA")
pixdata = im_red.load()
width, height = im_red.size
for y in range(height):
for x in range(width):
if pixdata[x, y] == (255, 255, 255, 255):
pixdata[x, y] = (255, 255, 255, 0)
im.paste(im_red, (0, 0), im_red)
im = im.transpose(Image.FLIP_LEFT_RIGHT)
img_name = 'page{:04d}.png'.format(self.page)
im.save(img_name)