pinetime/wasp-os
1
0
Fork 0
Code Activity

draw565: Fix bug in the straight line optimization

Browse source 
Currently the line drawing code does not draw the final pixel of
straight lines. Thus a line from (0, 0) to (10, 10) finishes on a
different pixel to (10, 0) to (10, 10).

Fix this by removing the spurious subtract one from the end point

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
This commit is contained in:
Daniel Thompson 2020-12-28 14:27:10 +00:00
parent 6d74d4f585
commit 8c1ab85257
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
wasp/draw565.py
View file

@ -395,8 +395,8 @@ class Draw565(object):
if x1 < x0 or y1 < y0:
x0, x1 = x1, x0
y0, y1 = y1, y0
w = width if dx == 0 else (dx + width - 1)
h = width if dy == 0 else (-dy + width - 1)
w = width if dx == 0 else (dx + width)
h = width if dy == 0 else (-dy + width)
self.fill(color, x0, y0, w, h)
return
while True: