Contents

module WebP
  class Options
    
    def initialize(options)
      @user_options = options
    end
    
    def encode_pointer
      options_pointer = FFI::MemoryPointer.new :char, C::FfiWebpEncodeConfig.size, false
      options_struct = C::FfiWebpEncodeConfig.new options_pointer
      # default
      options_struct[:quality] = 100
      options_struct[:crop_x] = options_struct[:crop_y] = 0
      options_struct[:crop_w] = options_struct[:crop_h] = 0
      options_struct[:resize_w] = options_struct[:resize_h] = 0
      # users
      [:lossless, :quality, :method, :target_size, :target_PSNR, 
        :segments, :sns_strength, :filter_strength, :filter_sharpness, 
        :filter_type, :autofilter, :alpha_compression, :alpha_filtering, 
        :alpha_quality, :pass, :show_compressed, :preprocessing, :partitions, 
        :partition_limit, :width, :height, :crop_x, :crop_y, :crop_w, 
        :crop_h, :resize_w, :resize_h].each do |key|
          options_struct[key] = @user_options[key] if @user_options[key]
      end
      options_pointer
    end
    
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
webp-ffi-0.1.3	lib/webp/options.rb