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#!/usr/bin/python3.4
import sys
import pykms
import selectors
bar_width = 20
bar_speed = 8
class FlipHandler(pykms.PageFlipHandlerBase):
def __init__(self):
super().__init__()
self.bar_xpos = 0
self.front_buf = 0
self.fb1 = pykms.DumbFramebuffer(card, mode.hdisplay, mode.vdisplay, "XR24");
self.fb2 = pykms.DumbFramebuffer(card, mode.hdisplay, mode.vdisplay, "XR24");
def handle_page_flip(self, frame, time):
if self.front_buf == 0:
fb = self.fb2
else:
fb = self.fb1
self.front_buf = self.front_buf ^ 1
current_xpos = self.bar_xpos;
old_xpos = (current_xpos + (fb.width() - bar_width - bar_speed)) % (fb.width() - bar_width);
new_xpos = (current_xpos + bar_speed) % (fb.width() - bar_width);
self.bar_xpos = new_xpos
pykms.draw_color_bar(fb, old_xpos, new_xpos, bar_width)
if card.has_atomic():
ctx = pykms.AtomicReq(card)
ctx.add(crtc, "FB_ID", fb.id())
ctx.commit(self)
else:
crtc.page_flip(fb, self)
card = pykms.Card()
conn = card.get_first_connected_connector()
mode = conn.get_default_mode()
crtc = conn.get_current_crtc()
fliphandler = FlipHandler()
crtc.set_mode(conn, fliphandler.fb1, mode)
fliphandler.handle_page_flip(0, 0)
def readdrm(conn, mask):
#print("EVENT");
card.call_page_flip_handlers()
def readkey(conn, mask):
#print("KEY EVENT");
sys.stdin.readline()
exit(0)
sel = selectors.DefaultSelector()
sel.register(card.fd(), selectors.EVENT_READ, readdrm)
sel.register(sys.stdin, selectors.EVENT_READ, readkey)
while True:
events = sel.select()
for key, mask in events:
callback = key.data
callback(key.fileobj, mask)
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