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Compress gcode lines in batch

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CURA-3604
This commit is contained in:
Lipu Fei 2017-03-30 16:07:53 +02:00
parent c785e84b86
commit bfd77f915d
1 changed files with 13 additions and 1 deletions
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14
plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
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@ -790,13 +790,25 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
Logger.log("d", "Started sending g-code to remote printer.")
self._compressing_print = True
## Mash the data into single string
max_chars_per_line = 1024*1024*2 # 2 MB
byte_array_file_data = b""
batched_line = ""
for line in self._gcode:
if not self._compressing_print:
self._progress_message.hide()
return # Stop trying to zip, abort was called.
# if the gcode was read from a gcode file, self._gcode will be a list of all lines in that file.
# Compressing line by line in this case is extremely slow, so we need to batch them.
if len(batched_line) < max_chars_per_line:
batched_line += line
continue
if self._use_gzip:
byte_array_file_data += gzip.compress(line.encode("utf-8"))
byte_array_file_data += gzip.compress(batched_line.encode("utf-8"))
batched_line = ""
QCoreApplication.processEvents() # Ensure that the GUI does not freeze.
# Pretend that this is a response, as zipping might take a bit of time.
self._last_response_time = time()