diff options
| author | Daniel Thompson <daniel@redfelineninja.org.uk> | 2021-01-17 17:44:21 (GMT) |
|---|---|---|
| committer | Daniel Thompson <daniel@redfelineninja.org.uk> | 2021-01-17 17:44:21 (GMT) |
| commit | 6b41c8f3db1778826ec8556f8900878a8f32c87a (patch) | |
| tree | 8b65647a30cbf54f7a4bc314b4d4adcabda4701a /wasp/apps/gameoflife.py | |
| parent | 5abae5a7f63f6841744ad63e7c8bbbb1d8452b37 (diff) | |
drivers: st7789: Pre-allocate a memoryview
Reduce the cost of slicing the linebuffer by pre-allocating a memoryview.
Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
Diffstat (limited to 'wasp/apps/gameoflife.py')
| -rw-r--r-- | wasp/apps/gameoflife.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/wasp/apps/gameoflife.py b/wasp/apps/gameoflife.py index 109888c..7e2b518 100644 --- a/wasp/apps/gameoflife.py +++ b/wasp/apps/gameoflife.py @@ -223,7 +223,7 @@ class GameOfLifeApp(): display = wasp.watch.display lb = display.linebuffer - alive = memoryview(lb)[0:2*16] + alive = lb[0:2*16] self._color = xorshift12(self._color) rgbhi = get_color(self._color) rgblo = rgbhi & 0xff @@ -234,7 +234,7 @@ class GameOfLifeApp(): for i in (0, 3, 12, 15): alive[i*2] = 0 alive[i*2+1] = 0 - dead = memoryview(lb)[2*16:4*16] + dead = lb[2*16:4*16] for i in range(len(dead)): dead[i] = 0 |