/openclnoise/blend.py

from basefilter import *



class BlendMode:

    NORMAL='Normal'

    LIGHTEN='Lighten'

    DARKEN='Darken'

    MULTIPLY='Multiply'

    AVERAGE='Average'

    ADD='Add'

    SUBTRACT='Subtract'

    DIFFERENCE='Difference'

    NEGATION='Negation'

    SCREEN='Screen'

    EXCLUSION='Exclusion'

    OVERLAY='Overlay'

    SOFTLIGHT='SoftLight'

    HARDLIGHT='HardLight'

    COLORDODGE='ColorDodge'

    COLORBURN='ColorBurn'

    LINEARDODGE='LinearDodge'

    LINEARBURN='LinearBurn'

    LINEARLIGHT='LinearLight'

    VIVIDLIGHT='VividLight'

    PINLIGHT='PinLight'

    HARDMIX='HardMix'

    REFLECT='Reflect'

    GLOW='Glow'

    PHOENIX='Phoenix'





class Blend(BaseFilter):

    _filename = 'blend.cl'

    

    def __init__(self,mode=BlendMode.NORMAL):

        super(type(self),self).__init__()

        self.__mode = mode

    

    def get_number_of_inputs(self):

        return 2

    

    @property

    def mode(self):

        return self.__mode

    

    @mode.setter

    def mode(self,value):

        if self.__mode != value:

            self.__mode = value

            self.on_code_dirty(self)

    

    def generate_code(self):

        code = '#define /*id*/CHANNEL_BLEND_FUNC ChannelBlend_{0}\n'.format(self.__mode)

        code += super(type(self),self).generate_code()

        return code

        

    def get_name(self):

        return 'blend'

        

    def __repr__(self):

        return 'Blend(mode = "{0}")'.format(self.__mode)