# File lib/native_file_types/c64/C64PhotoScrap.rb, line 58
def unpacked_bytes
        bitmap_length=(picture_width/8)*picture_height
        colour_length=(bitmap_length)/8

        if @unpacked_bytes.nil? then
                @unpacked_bytes=Array.new(bitmap_length+colour_length)
                in_p=3
                out_p=0
                while (in_p<contents.length) do
                        count=contents[in_p]
                        in_p+=1
                        case count
                        when 00..127 then
                                repeat=count
                                b=contents[in_p]
                                in_p+=1
                                repeat.times do 
                                        @unpacked_bytes[out_p]=b
                                        out_p+=1
                                end                         
                        when 128..220 then
                                repeat=count-128
                                repeat.times do 
                                        b=contents[in_p]
                                        in_p+=1
                                        @unpacked_bytes[out_p]=b
                                        out_p+=1
                                end                         
                        when 221..225 then
                                raise "BIGCOUNT not implemented yet"
                        end
                end
#               puts "#{filename} #{in_p} #{out_p} of #{bitmap_length} #{count} #{picture_width}x#{picture_height}"

        end
        return [@unpacked_bytes[0,bitmap_length],@unpacked_bytes[bitmap_length,colour_length]]
        
end