def do_flip(self, block=True):
# call the flip
EventLoop.window.dispatch('on_flip')
# TODO: use sync events instead!
if block:
# draw a transparent point
# position
glVertexAttribPointer(0, 2, GL_INT, GL_FALSE, 0,
"\x00\x00\x00\x0a\x00\x00\x00\x0a")
# color
glVertexAttrib4f(3, 0.0, 0.0, 0.0, 0.0)
glDrawArrays(GL_POINTS, 0, 1)
# wait for flip then point to draw
glFinish()
# record the time immediately
self.last_flip = event_time(clock.now(), 0.0)
else:
# we didn't block, so set to predicted flip time
self.last_flip = event_time(self._next_flip_time, 0.0)
# update flip times
self._next_flip_time = self.last_flip['time'] + self.flip_interval
self._next_draw_time = self.last_flip['time'] + self.flip_interval / 2.
self._did_draw = False
return self.last_flip
def do_flip(self, block=True):
# call the flip
EventLoop.window.dispatch('on_flip')
# TODO: use sync events instead!
if block:
# draw a transparent point
# position
glVertexAttribPointer(0, 2, GL_INT, GL_FALSE, 0,
"\x00\x00\x00\x0a\x00\x00\x00\x0a")
# color
glVertexAttrib4f(3, 0.0, 0.0, 0.0, 0.0)
glDrawArrays(GL_POINTS, 0, 1)
# wait for flip then point to draw
glFinish()
# record the time immediately
self.last_flip = event_time(clock.now(), 0.0)
else:
# we didn't block, so set to predicted flip time
self.last_flip = event_time(max(self._next_flip_time, clock.now()), 0.0)
# update flip times
self._next_flip_time = self.last_flip['time'] + self.flip_interval
self._next_draw_time = self.last_flip['time'] + self.flip_interval/2.
self._did_draw = False
return self.last_flip
def blocking_flip(self):
EventLoop.window.dispatch("on_flip")
# glEnableVertexAttribArray(0) # kivy has this enabled already
glVertexAttribPointer(0, 2, GL_INT, GL_FALSE, 0, "\x00\x00\x00\x0a\x00\x00\x00\x0a") # Position
glVertexAttrib4f(3, 0.0, 0.0, 0.0, 0.0) # Color
glDrawArrays(GL_POINTS, 0, 1)
# glDisableVertexAttribArray(0) # kivy needs this to stay enabled
glFinish()
self.last_flip = event_time(clock.now(), 0.0)
return self.last_flip
def blocking_flip(self):
EventLoop.window.dispatch('on_flip')
#glEnableVertexAttribArray(0) # kivy has this enabled already
glVertexAttribPointer(0, 2, GL_INT, GL_FALSE, 0,
"\x00\x00\x00\x0a\x00\x00\x00\x0a") # Position
glVertexAttrib4f(3, 0.0, 0.0, 0.0, 0.0) # Color
glDrawArrays(GL_POINTS, 0, 1)
#glDisableVertexAttribArray(0) # kivy needs this to stay enabled
glFinish()
self.last_flip = event_time(clock.now(), 0.0)
return self.last_flip
def blocking_flip(self):
# TODO: use sync events instead!
EventLoop.window.dispatch('on_flip')
# draw a transparent point
glVertexAttribPointer(0, 2, GL_INT, GL_FALSE, 0,
"\x00\x00\x00\x0a\x00\x00\x00\x0a") # Position
glVertexAttrib4f(3, 0.0, 0.0, 0.0, 0.0) # Color
glDrawArrays(GL_POINTS, 0, 1)
# wait for flip and point to draw
glFinish()
# record the time immediately
self.last_flip = event_time(clock.now(), 0.0)
return self.last_flip