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| author | Daniel Thompson <daniel@redfelineninja.org.uk> | 2020-04-08 20:50:42 (GMT) |
|---|---|---|
| committer | Daniel Thompson <daniel@redfelineninja.org.uk> | 2020-04-08 20:50:42 (GMT) |
| commit | fd64abe882a2064bad0131424835c169e365d83f (patch) | |
| tree | d63acda8b2afb03e8ed6ee4f5dfea48d9f30f2a7 /wasp/boards | |
| parent | ac61d8a1c114d7f4ca8000afc02c843db5fd6245 (diff) | |
wasp: draw565: Optimize the 2-bit RLE drawing functions
There's a bunch of different changes here but there are only really three
big wins. The biggest win comes from restructuring the 2-bit RLE decode
loop to avoid the inner function (~20%) but the switch to 16-bit writes in
_fill() and adoption of quick_write (e.g. no CS toggling) are also
note worthy (and about 5% each).
Diffstat (limited to 'wasp/boards')
| -rw-r--r-- | wasp/boards/simulator/micropython.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/wasp/boards/simulator/micropython.py b/wasp/boards/simulator/micropython.py index 41c30a4..804f514 100644 --- a/wasp/boards/simulator/micropython.py +++ b/wasp/boards/simulator/micropython.py @@ -11,9 +11,13 @@ def viper(fn): def ptr8(buf): return buf + def ptr16(buf): + return memoryview(buf).cast('H') + # This is a bit of a hack since the scope for ptr8 won't be right # but it does mean no changes to the client fn.__globals__['ptr8'] = ptr8 + fn.__globals__['ptr16'] = ptr16 return fn |