This feature {x=} was introduced in Python 3.8 so needs a separate .exp
file to run on earlier Python versions.
See https://bugs.python.org/issue36817
Signed-off-by: Damien George <damien@micropython.org>
Convert adafruit_bus_device, adafruit_pixelbuf, analogio, atexit, audiobusio, audiocore, audioio, audiomixer, and audiomp3 modules to use MP_REGISTER_MODULE.
Related to #5183.
The old way mapped each byte of nvm onto a distinct nvs key, but this
allowed storage of only a very small number of bytes out of the
theoretical capacity.
Reworked like this, about half of the nvs capacity can be used for
nvm, so you're guaranteed the ability to store 9kB this way.
This makes it work like --no-follow and --no-exclusive using a mutex group
and dest. Although the current implementation with BooleanOptionAction is
neater it requires Python 3.9, so don't use this feature.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
The --no-exclusive flag was accidentally added to the mutex group in
178198a01df51b5f4c5ef9f38ab2fb8f6269d5f4.
The --soft-reset flag was accidentally added to the mutex group in
41adf178309759d5965c15972f04987a2635314c.
These flags can be specified independently to --[no-]follow so should not
be in that mutex group.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This achieves a substantial performance improvement when rendering glyphs
to color displays, the benefit increasing proportional to the number of
pixels in the glyph.
Convert from using MICROPY_PORT_BUILTIN_MODULES_STRONG_LINKS to using MP_REGISTER_MODULE for displayio, terminalio, and fontio modules.
Related to #5183.
This keeps the mutex info in the same spot in memory. "Statically
allocating it" with CircuitPython meant that the buffer moved when
the I2C object is moved to keep it alive for a display.
Fixes#4962
I noticed that the loop over 65535 possible denominators took a long time,
causing up to 100ms wait for a sound sample to start playing!
This algorithm, adapted from an algorithm shown in Python's fractions.py,
is guaranteed to find the best denominator in a small number of steps
(I think log2-many steps but I'm not sure). In practice, it means the time
between samples playing is just 10ms, and some of that is recreating the
sine wave sample in Python each time.
It often finds the same solution as the old code, but sometimes it finds
one a bit better since it compares the ratios using float point instead
of integer arithmetic.
