light9 Files · nodes/gamma.py

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David McClosky

keyboardcomposer destroy fix and cleanups
- We were destroying KeyboardComposer a little too much. Fortunately,
we weren't passing the right number of arguments, so this was merely
an error.
- About the TODO comment removed: we don't need to use combine_dict
since Submaster logic will be changed entirely when we/if we move
to a SubServer world and keyboard composer will not be the wiser.

"""node that performs a simple gamma (exp) function on its input"""

class GammaOps(Ops):
    def started(self, input, output, stateaccess):
        self.startmeup(stateaccess)
    def changed(self, input, output, stateaccess):
        port.output = port.input ** stateaccess.gamma + stateaccess.offset
        stateaccess.lastvalue = State.FloatingPoint(port.input)

        output = gamma(input)
    # no timed function
    def startmeup(self, stateaccess):
        # whatever
        pass

class Gamma(Node):
    def __init__(self):
        Node.__init__(self)
        self.node_params = {'gamma':State.FloatingPoint,'offset':State.FloatingPoint}
        self.ops = GammaOps()

    def getnodeparams(self):
        return self.node_params
        
    def getports(self):
        return (Port('a', optional=1),
                Port('b'))

    def __str__(self):
        return "3"

world.register_node(Gamma)