Module: Roglew::RenderContextExtension::ClassMethods

Defined in:
lib/roglew/render_context_extension.rb

Instance Method Summary collapse

Instance Method Details

#def_delete(name, function) ⇒ Object 



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# File 'lib/roglew/render_context_extension.rb', line 14

def def_delete(name, function)
  checks_current
  define_method "delete_#{name}", ->(ids) do
    raise Roglew::RenderContext::ContextError, 'render handle not current' unless @rh.current?
    p = FFI::MemoryPointer.new(:uint, ids.count)
    p.write_array_of_uint(ids)
    send(function, ids.count, p)
    nil
  end
end

#def_gen(name, function) ⇒ Object 



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# File 'lib/roglew/render_context_extension.rb', line 4

def def_gen(name, function)
  checks_current
  define_method "gen_#{name}", ->(count = 1) do
    p = FFI::MemoryPointer.new(:uint, count)
    @rh.send(function, count, p)
    ids = p.read_array_of_uint(count)
    count == 1 ? ids[0] : ids
  end
end

#def_object(name) ⇒ Object 



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# File 'lib/roglew/render_context_extension.rb', line 25

def def_object(name)
  def_gen(name.to_s.snakecase, "glGen#{name}")
  def_delete(name.to_s.snakecase, "glDelete#{name}")
end