py/alpha-test.py

   1 #!/usr/bin/python3.4
   2
   3 import pykms
   4 from helpers import *
   5 import time
   6
   7 # This hack makes drm initialize the fbcon, setting up the default connector
   8 card = pykms.Card()
   9 card = 0
  10
  11 card = pykms.Card()
  12
  13 conn = card.get_first_connected_connector()
  14 mode = conn.get_default_mode()
  15 crtc = conn.get_current_crtc()
  16
  17 planes = []
  18 for p in card.get_planes():
  19     if p.supports_crtc(crtc) == False:
  20         continue
  21     planes.append(p)
  22
  23 if len(planes) != 3:
  24     print("Need 3 planes!")
  25     exit(1)
  26
  27 disable_planes(card)
  28
  29 w = mode.hdisplay
  30 h = mode.vdisplay
  31
  32 fbs=[]
  33
  34 for i in range(len(planes)):
  35     fbs.append(pykms.DumbFramebuffer(card, w, h, "AR24"))
  36
  37 pykms.draw_rect(fbs[0], 50, 50, 200, 200, pykms.RGB(128, 255, 0, 0))
  38 pykms.draw_rect(fbs[1], 150, 50, 200, 200, pykms.RGB(128, 0, 255, 0))
  39 pykms.draw_rect(fbs[2], 50, 150, 200, 200, pykms.RGB(128, 0, 0, 255))
  40
  41
  42 set_props(crtc, {
  43     "trans-key-mode": 0,
  44     "trans-key": 0,
  45     "background": 0,
  46     "alpha_blender": 1,
  47 })
  48
  49 for i in range(len(planes)):
  50     plane = planes[i]
  51     fb = fbs[i]
  52
  53     print("set crtc {}, plane {}, fb {}".format(crtc.id(), p.id(), fbs[i].id()))
  54
  55     set_props(plane, {
  56         "FB_ID": fb.id(),
  57         "CRTC_ID": crtc.id(),
  58         "SRC_W": fb.width() << 16,
  59         "SRC_H": fb.height() << 16,
  60         "CRTC_W": fb.width(),
  61         "CRTC_H": fb.height(),
  62         "zorder": i,
  63     })
  64
  65     time.sleep(1)
  66
  67 input("press enter to exit\n")