Class: Zopfli::Options

Inherits:
Object
  • Object
show all
Defined in:
lib/zopfli/options.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type, iterations) ⇒ Options

Returns a new instance of Options.



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# File 'lib/zopfli/options.rb', line 8

def initialize(type, iterations)
  @type, @iterations = type, iterations
end

Instance Attribute Details

#iterations ⇒ Object (readonly)

Returns the value of attribute iterations.



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# File 'lib/zopfli/options.rb', line 6

def iterations
  @iterations
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/zopfli/options.rb', line 6

def type
  @type
end

Instance Method Details

#compress_pointer ⇒ Object 



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# File 'lib/zopfli/options.rb', line 12

def compress_pointer
  options_pointer = FFI::MemoryPointer.new :char, C::ZopfliConfig.size, false
  options_struct = C::ZopfliConfig.new options_pointer
  # set format
  options_struct[:type] = case type
    when :deflate then 1
    when :gzip then 2
    else 0
  end
  # set numiterations
  options_struct[:numiterations] = iterations.to_i if iterations.to_i > 0

  options_pointer
end