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| author | Daniel Thompson <daniel@redfelineninja.org.uk> | 2020-03-09 21:33:29 (GMT) |
|---|---|---|
| committer | Daniel Thompson <daniel@redfelineninja.org.uk> | 2020-03-09 21:33:29 (GMT) |
| commit | 3ded49c5eff3edd9993c9ee88a96661a459b866a (patch) | |
| tree | 9a0b5b1f914085796b5c6db5edbac57b8410c134 /wasp/fonts | |
| parent | 820764081ec4327cdc294d52fa6a1d441f220d75 (diff) | |
fonts: sans24: Minor refactor to reduce memory allocation
This is a useful but modest optimization (maybe 3% in string
rendering.
Diffstat (limited to 'wasp/fonts')
| -rw-r--r-- | wasp/fonts/sans24.py | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/wasp/fonts/sans24.py b/wasp/fonts/sans24.py index 2fdb6f2..5cbe3b4 100644 --- a/wasp/fonts/sans24.py +++ b/wasp/fonts/sans24.py @@ -355,14 +355,15 @@ b'\x50\x13' _mvfont = memoryview(_font) _mvi = memoryview(_index) -ifb = lambda l : l[0] | (l[1] << 8) def get_ch(ch): + mvi = _mvi + mvfont = _mvfont + oc = ord(ch) ioff = 2 * (oc - 32 + 1) if oc >= 32 and oc <= 126 else 0 - doff = ifb(_mvi[ioff : ]) - width = ifb(_mvfont[doff : ]) + doff = mvi[ioff] | (mvi[ioff+1] << 8) + width = mvfont[doff] | (mvfont[doff+1] << 8) next_offs = doff + 2 + ((width - 1)//8 + 1) * 24 return _mvfont[doff + 2:next_offs], 24, width - |