class Iup::ImageRGBA

Image made from RGBA values.

Example

image_data = [
  r1,g1,b1,a1,r2,g2,b2,a2, ... r20,g20,b20,a20, # 4x20 sets of RGBA values
  ... # 20 rows
]
Iup::ImageRGBA.new(20, 20, image_data)

Public Class Methods

new (width, height, pixels) { |self| ... }

Source

# File lib/wrapped/image.rb, line 171
def initialize(width, height, pixels)
  @handle = IupLib.IupImageRGBA(width, height, IupLib.pointer_from_chars(pixels))

  # run any provided block on instance, to set up further attributes
  yield self if block_given?
end

Constructor creates an image from raw pixels. If a block is given, the new instance is yielded to it.

width - width of image in pixels
height - height of image in pixels
pixels - an array of pixel values, using 4 values per pixel.