# File lib/ruby-sdl-ffi/sdl/video.rb, line 285 def self.GetGammaRamp() rtable = FFI::Buffer.new( :uint16, 256 ) gtable = FFI::Buffer.new( :uint16, 256 ) btable = FFI::Buffer.new( :uint16, 256 ) n = __SDL_GetGammaRamp( rtable, gtable, btable ) if( n == -1 ) return nil else return [ rtable.get_array_of_uint16(0, 256), gtable.get_array_of_uint16(0, 256), btable.get_array_of_uint16(0, 256) ] end end