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Fix rounding, offsets, and increase halo

This commit is contained in:
Matt Guthaus 2016-11-18 15:49:07 -08:00
parent 7e03eaf41e
commit 62237830cd
1 changed files with 17 additions and 10 deletions
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25
compiler/router/router.py
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@ -71,10 +71,10 @@ class router:
""" Create a routing grid that spans given area. Wires cannot exist outside region. """ """ Create a routing grid that spans given area. Wires cannot exist outside region. """
# We will add a halo around the boundary # We will add a halo around the boundary
# of this many tracks # of this many tracks
track_halo = 2 track_halo = 3
# We will offset so ll is at (-track_halo*track_width,-track_halo*track_width) # We will offset so ll is at (-track_halo*track_width,-track_halo*track_width)
track_width_offset = vector([track_halo*self.track_width]*2) track_width_offset = vector([track_halo*self.track_width]*2)
self.offset = self.ll - track_width_offset self.offset = self.ll + track_width_offset
debug.info(1,"Offset: "+str(self.offset)) debug.info(1,"Offset: "+str(self.offset))
width = self.size.x width = self.size.x
height = self.size.y height = self.size.y
@ -276,7 +276,7 @@ class router:
# we can ignore the layers here # we can ignore the layers here
# add_wire will filter out duplicates # add_wire will filter out duplicates
pt = vector(p[0],p[1]) pt = vector(p[0],p[1])
pt=pt.scale(track_factor)+self.offset pt=pt.scale(track_factor) - self.offset
return snap_to_grid(pt) return snap_to_grid(pt)
def convert_shape_to_tracks(self,shape,round_bigger=True): def convert_shape_to_tracks(self,shape,round_bigger=True):
@ -286,19 +286,22 @@ class router:
[ll,ur] = shape [ll,ur] = shape
# offset lowest corner object to to (-track halo,-track halo) # offset lowest corner object to to (-track halo,-track halo)
ll = snap_to_grid(ll-self.offset) ll = snap_to_grid(ll + self.offset)
ur = snap_to_grid(ur-self.offset) ur = snap_to_grid(ur + self.offset)
# to scale coordinates to tracks # to scale coordinates to tracks
track_factor = [1/self.track_width] * 2 track_factor = [1/self.track_width] * 2
# Always round blockage shapes up.
if round_bigger: if round_bigger: # Always round blockage shapes up.
ll = ll.scale(track_factor).floor() ll = ll.scale(track_factor).floor()
ur = ur.scale(track_factor).ceil() ur = ur.scale(track_factor).ceil()
# Always round pin shapes down if ll.x<0:
else: ll.x=0
if ll.y<0:
ll.y=0
else: # Always round pin shapes down
ll = ll.scale(track_factor).ceil() ll = ll.scale(track_factor).ceil()
ur = ur.scale(track_factor).floor() ur = ur.scale(track_factor).floor()
# if they were within one grid, we must # if they were within one grid, we must
@ -307,6 +310,10 @@ class router:
ur.x=ll.x ur.x=ll.x
if ur.y<ll.y: if ur.y<ll.y:
ur.y=ll.y ur.y=ll.y
if ll.x<0:
ll.x=0
if ll.y<0:
ll.y=0
return [ll,ur] return [ll,ur]