pyetherpix

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# python EtherPix library
#
# Copyright 2017 Stefan Schuermans <stefan schuermans info>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import socket
import struct
from PIL import Image
from pyetherpix.mapping import Mapping
class Distributor(object):
    def __init__(self, distri_no, outputs, pixels):
        """create a new EtherPix distributor
           distri_no: distributor number
           outputs: number of outputs
           pixels: number of pixels per output"""
        self._distri_no = distri_no
        self._outputs = outputs
        self._pixels = pixels
        # no address(es) yet
        self._addrs = []
        # default color mapping
        self._mappings = []
        for c in range(Mapping.CHANNELS):
            self._mappings.append(Mapping())
        # pixel coordinates: all unknown
        self._pixel_coords = [[None] * self._pixels] * self._outputs
        # initialize channels and header for UDP packets
        self.set_channels(Mapping.CHANNELS)
        # initial image data is cleared
        self.data_clear()
    def check_output_no(self, output_no):
        """check output number, return True if okay, False if not okay"""
        return output_no >= 0 and output_no < self._outputs
 
 
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