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# blending_ranges.coffee lib/psd/layer/ |
--- | ---
¶ |
    module.exports =
¶ Blending ranges let you control which pixels from this layer and which pixels from the underlying layers appear in the final image. This describes the ranges in both greyscale and for each color channel. |
      parseBlendingRanges: ->
        length = @file.readInt()

        @blendingRanges.grey =
          source:
            black: [@file.readByte(), @file.readByte()]
            white: [@file.readByte(), @file.readByte()]
          dest:
            black: [@file.readByte(), @file.readByte()]
            white: [@file.readByte(), @file.readByte()]

        numChannels = (length - 8) / 8

        @blendingRanges.channels = []
        for i in [0...numChannels]
          @blendingRanges.channels.push
            source:
              black: [@file.readByte(), @file.readByte()]
              white: [@file.readByte(), @file.readByte()]
            dest:
              black: [@file.readByte(), @file.readByte()]
              white: [@file.readByte(), @file.readByte()]

generated Tue May 12 2015 10:08:56 GMT-0400 (EDT)