def __init__(self,
playlists,
activePlaylist=None,
useFastFades=False,
gamma=2.2):
# playlists argument should be dictionary of playlist names : playlists.
if not playlists:
raise Exception("Can't define a renderer without any playlists")
self.playlists = playlists
# activePlaylist is the name of the first playlist to display. Can be
# omitted if playlists only has one thing in it
if activePlaylist:
self.activePlaylist = activePlaylist
else:
if len(playlists.keys()) == 1:
self.activePlaylist = playlists.keys()[0]
else:
raise Exception(
"Can't define multi-playlist renderer without specifying active playlist"
)
# used when fading between playlists, to know what to return to when the fade is done
self.nextPlaylist = None
self.useFastFades = useFastFades
self.fade = None
self.gammaLayer = GammaLayer(gamma)
def __init__(self, playlists, activePlaylist=None, useFastFades=False, gamma=2.2):
# playlists argument should be dictionary of playlist names : playlists.
if not playlists:
raise Exception("Can't define a renderer without any playlists")
self.playlists = playlists
# activePlaylist is the name of the first playlist to display. Can be
# omitted if playlists only has one thing in it
if activePlaylist:
self.activePlaylist = activePlaylist
else:
if len(playlists.keys()) == 1:
self.activePlaylist = playlists.keys()[0]
else:
raise Exception("Can't define multi-playlist renderer without specifying active playlist")
# used when fading between playlists, to know what to return to when the fade is done
self.nextPlaylist = None
self.useFastFades = useFastFades
self.fade = None
self.gammaLayer = GammaLayer(gamma)
class Renderer:
"""
Renders the selected light routine in the currently active playlist.
Performs smooth transitions when the active routine changes (either due to swapping
playlists or to advancing the selection in the current playlist).
Also applies a gamma correction layer after everything else is rendered.
"""
def __init__(self,
playlists,
activePlaylist=None,
useFastFades=False,
gamma=2.2):
# playlists argument should be dictionary of playlist names : playlists.
if not playlists:
raise Exception("Can't define a renderer without any playlists")
self.playlists = playlists
# activePlaylist is the name of the first playlist to display. Can be
# omitted if playlists only has one thing in it
if activePlaylist:
self.activePlaylist = activePlaylist
else:
if len(playlists.keys()) == 1:
self.activePlaylist = playlists.keys()[0]
else:
raise Exception(
"Can't define multi-playlist renderer without specifying active playlist"
)
# used when fading between playlists, to know what to return to when the fade is done
self.nextPlaylist = None
self.useFastFades = useFastFades
self.fade = None
self.gammaLayer = GammaLayer(gamma)
def _get(self, playlistKey):
if playlistKey:
return self.playlists[playlistKey]
else:
return None
def _active(self):
return self._get(self.activePlaylist)
def _next(self):
return self._get(self.nextPlaylist)
def render(self, model, params, frame):
if self.fade:
self.fade.render(model, params, frame)
if self.fade.done:
# If the fade was to a new playlist, set that one to active
if self.nextPlaylist:
self.activePlaylist = self.nextPlaylist
self.nextPlaylist = None
self.fade = None
elif self.activePlaylist:
for layer in self._active().selection():
layer.safely_render(model, params, frame)
self.gammaLayer.render(model, params, frame)
def advanceCurrentPlaylist(self, fadeTime=1):
# Advance selection within current playlist
active = self._active()
if active:
selection = active.selection()
active.advance()
self.fade = LinearFade(selection, active.selection(), fadeTime)
else:
raise Exception(
"Can't advance playlist - no playlist is currently active")
def _fadeTimeForTransition(self, playlist):
return max(
[effect.transitionFadeTime for effect in playlist.selection()])
def swapPlaylists(self,
nextPlaylist,
intermediatePlaylist=None,
advanceAfterFadeOut=True,
fadeTime=1):
# Swap to a new playlist, either directly or by doing a two-step fade to an intermediate one first.
# TODO check for wonky behavior when one fade is set while another is still in progress
active = self._active()
self.nextPlaylist = nextPlaylist
if self.useFastFades:
self.fade = FastFade(active.selection(),
self._next().selection(), fadeTime)
else:
if intermediatePlaylist:
middle = self._get(intermediatePlaylist)
self.fade = TwoStepLinearFade(
active.selection(), middle.selection(),
self._next().selection(), 0.25,
self._fadeTimeForTransition(middle))
if advanceAfterFadeOut:
middle.advance()
else:
self.fade = LinearFade(active.selection(),
self._next().selection(), fadeTime)
if advanceAfterFadeOut:
active.advance()
class Renderer:
"""
Renders the selected light routine in the currently active playlist.
Performs smooth transitions when the active routine changes (either due to swapping
playlists or to advancing the selection in the current playlist).
Also applies a gamma correction layer after everything else is rendered.
"""
def __init__(self, playlists, activePlaylist=None, useFastFades=False, gamma=2.2):
# playlists argument should be dictionary of playlist names : playlists.
if not playlists:
raise Exception("Can't define a renderer without any playlists")
self.playlists = playlists
# activePlaylist is the name of the first playlist to display. Can be
# omitted if playlists only has one thing in it
if activePlaylist:
self.activePlaylist = activePlaylist
else:
if len(playlists.keys()) == 1:
self.activePlaylist = playlists.keys()[0]
else:
raise Exception("Can't define multi-playlist renderer without specifying active playlist")
# used when fading between playlists, to know what to return to when the fade is done
self.nextPlaylist = None
self.useFastFades = useFastFades
self.fade = None
self.gammaLayer = GammaLayer(gamma)
def _get(self, playlistKey):
if playlistKey:
return self.playlists[playlistKey]
else:
return None
def _active(self):
return self._get(self.activePlaylist)
def _next(self):
return self._get(self.nextPlaylist)
def render(self, model, params, frame):
if self.fade:
self.fade.render(model, params, frame)
if self.fade.done:
# If the fade was to a new playlist, set that one to active
if self.nextPlaylist:
self.activePlaylist = self.nextPlaylist
self.nextPlaylist = None
self.fade = None
elif self.activePlaylist:
for layer in self._active().selection():
layer.safely_render(model, params, frame)
self.gammaLayer.render(model, params, frame)
def advanceCurrentPlaylist(self, fadeTime=1):
# Advance selection within current playlist
active = self._active()
if active:
selection = active.selection()
active.advance()
self.fade = LinearFade(selection, active.selection(), fadeTime)
else:
raise Exception("Can't advance playlist - no playlist is currently active")
def _fadeTimeForTransition(self, playlist):
return max([effect.transitionFadeTime for effect in playlist.selection()])
def swapPlaylists(self, nextPlaylist, intermediatePlaylist=None, advanceAfterFadeOut=True, fadeTime=1):
# Swap to a new playlist, either directly or by doing a two-step fade to an intermediate one first.
# TODO check for wonky behavior when one fade is set while another is still in progress
active = self._active()
self.nextPlaylist = nextPlaylist
if self.useFastFades:
self.fade = FastFade(active.selection(), self._next().selection(), fadeTime)
else:
if intermediatePlaylist:
middle = self._get(intermediatePlaylist)
self.fade = TwoStepLinearFade(active.selection(), middle.selection(), self._next().selection(), 0.25, self._fadeTimeForTransition(middle))
if advanceAfterFadeOut:
middle.advance()
else:
self.fade = LinearFade(active.selection(), self._next().selection(), fadeTime)
if advanceAfterFadeOut:
active.advance()
