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#!/usr/bin/python3
import sys
import pykms
import selectors
bar_width = 20
bar_speed = 8
class FlipHandler():
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");
self.flips = 0
self.frames = 0
self.time = 0
def handle_page_flip(self, frame, time):
self.flips += 1
if self.time == 0:
self.frames = frame
self.time = time
time_delta = time - self.time
if time_delta >= 5:
frame_delta = frame - self.frames
print("Frame rate: %f (%u/%u frames in %f s)" %
(frame_delta / time_delta, self.flips, frame_delta, time_delta))
self.flips = 0
self.frames = frame
self.time = 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.primary_plane, "FB_ID", fb.id)
ctx.commit(self)
else:
crtc.page_flip(fb, self)
if len(sys.argv) > 1:
conn_name = sys.argv[1]
else:
conn_name = ''
card = pykms.Card()
res = pykms.ResourceManager(card)
conn = res.reserve_connector(conn_name)
crtc = res.reserve_crtc(conn)
mode = conn.get_default_mode()
fliphandler = FlipHandler()
crtc.set_mode(conn, fliphandler.fb1, mode)
fliphandler.handle_page_flip(0, 0)
def readdrm(fileobj, mask):
#print("EVENT");
for ev in card.read_events():
if ev.type == pykms.DrmEventType.FLIP_COMPLETE:
ev.data.handle_page_flip(ev.seq, ev.time)
def readkey(fileobj, 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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