Callbacks slow down the applications

[wilsonsilva]

Here's an example:

raylib-ruby/examples/audio/audio_mixed_processor-broken.rb

Lines 33 to 60 in 8491d2d

	ProcessAudio = FFI::Function.new(:void, [:pointer, :uint]) do |buffer, frames|
	# samples = buffer.to_a
	# average = 0.0 # Temporary average volume
	#
	# frames.times do |frame|
	# left = samples[frame * 2]
	# right = samples[frame * 2 + 1]
	#
	# left = (left.abs ** $exponent) * (left < 0.0 ? -1.0 : 1.0)
	# right = (right.abs ** $exponent) * (right < 0.0 ? -1.0 : 1.0)
	#
	# average += (left.abs / frames) + (right.abs / frames)
	# end
	#
	# # Moving history to the left
	# $average_volume.shift(399)
	# $average_volume << average # Adding last average value
	end
	# Initialization
	# --------------------------------------------------------------------------------------
	SCREEN_WIDTH = 800
	SCREEN_HEIGHT = 450
	Raylib.init_window(SCREEN_WIDTH, SCREEN_HEIGHT, "raylib [audio] example - processing mixed output")
	Raylib.init_audio_device # Initialize audio device
	# Raylib.attach_audio_mixed_processor(ProcessAudio) # FIXME: Uncomment when callbacks are supported