Method: RGSS::Texture#initialize

Defined in:
lib/rgss/texture.rb

#initialize(*args, **opts) ⇒ Texture

Returns a new instance of Texture.



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# File 'lib/rgss/texture.rb', line 11

def initialize(*args, **opts)
  super(glGenTexture)

  image = nil
  case args.size
  when 1
    source = args.first
    image = source.is_a?(String) ? Image.new(source) : source
    raise(TypeError, "#{source} is not a String or Image") unless image.is_a?(Image)
  when 2
    image = Image.new(*args, **opts)
  else
    raise(ArgumentError, "wrong number of arguments (given #{args.size}, expected 1, 2)")
  end

  glActiveTexture(GL_TEXTURE0);
  glBindTexture(GL_TEXTURE_2D, self.id);
  
  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width, image.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, image.address);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

  @width = image.width
  @height = image.height
  image.dispose
  @fbo = 0
end