new_contents: #!/usr/bin/python3
  
  import pykms
  import time
  import random
  
  card = pykms.Card()
  res = pykms.ResourceManager(card)
  conn = res.reserve_connector("hdmi")
  crtc = res.reserve_crtc(conn)
  plane = res.reserve_overlay_plane(crtc)
  
  mode = conn.get_default_mode()
  #mode = conn.get_mode(1920, 1080, 60, False)
  
  # Blank framefuffer for primary plane
  fb0 = pykms.DumbFramebuffer(card, mode.hdisplay, mode.vdisplay, "AR24");
  
  crtc.set_mode(conn, fb0, mode)
  
  # Initialize framebuffer for the scaled plane
  fbX = 1920
  fbY = 1080
  fb = pykms.DumbFramebuffer(card, fbX, fbY, "RG16");
  pykms.draw_test_pattern(fb);
  
  # Plane's scaled size and size increments
  W = 72
  H = 54
  Winc = 1
  Hinc = 1
  
  # Plane's position and position increments
  X = 0
  Y = 0
  Xinc = 1
  Yinc = 1
  while True:
  	print("+%d+%d %dx%d" % (X, Y, W, H))
  	crtc.set_plane(plane, fb, X, Y, W, H, 0, 0, fbX, fbY)
  	W = W + Winc
  	H = H + Hinc
  	if (Winc == 1 and W >= mode.hdisplay - X):
  		Winc = -1
  	if (Winc == -1 and W <= fbX/32):
  		Winc = 1
  	if (Hinc == 1 and H >= mode.vdisplay - Y):
  		Hinc = -1
  	if (Hinc == -1 and H <= fbY/32):
  		Hinc = 1
  	X = X + Xinc
  	Y = Y + Yinc
  	if (Xinc == 1 and X >= mode.hdisplay - W):
  		Xinc = -1
  	if (Xinc == -1 and X <= 0):
  		Xinc = 1
  	if (Yinc == 1 and Y >= mode.vdisplay - H):
  		Yinc = -1
  	if (Yinc == -1 and Y <= 0):
  		Yinc = 1
  
subject: Add a simple and hackish plane scaling test.