blurhash.rb in blurhash-0.1.7

- old
+ new
@@ -1,31 +1,23 @@
 # frozen_string_literal: true
 
 require 'blurhash/version'
-require 'ffi'
+require 'blurhash_ext'
 
 module Blurhash
   def self.encode(width, height, pixels, x_comp: 4, y_comp: 3)
-    FFI::MemoryPointer.new(:u_int8_t, pixels.size) do |p|
-      p.write_array_of_uint8(pixels)
-      return Unstable.blurHashForPixels(x_comp, y_comp, width, height, p, width * 3)
-    end
+    p = pixels.pack("C#{pixels.size}")
+    return Unstable.blurHashForPixels(x_comp, y_comp, width, height, p)
   end
 
   def self.components(str)
     size_flag = Base83.decode83(str[0])
     y_comp    = (size_flag / 9) + 1
     x_comp    = (size_flag % 9) + 1
 
     return if str.size != 4 + 2 * x_comp * y_comp
 
     [x_comp, y_comp]
-  end
-
-  module Unstable
-    extend FFI::Library
-    ffi_lib File.join(File.expand_path(File.dirname(__FILE__)), '..', 'ext', 'blurhash', 'encode.' + RbConfig::CONFIG['DLEXT'])
-    attach_function :blurHashForPixels, %i(int int int int pointer size_t), :string
   end
 
   module Base83
     DIGIT_CHARACTERS = %w(
       0 1 2 3 4 5 6 7 8 9