suspect-devices/circuitpython/extmod/modframebuf.c, branch 5.3.x

Fix subclassing of objects that are tested. Others may still be broken.

2020-01-27T22:52:42+00:00

protocols: Allow them to be (optionally) type-safe

2019-12-04T15:29:57+00:00

Protocols are nice, but there is no way for C code to verify whether a type's "protocol" structure actually implements some particular protocol. As a result, you can pass an object that implements the "vfs" protocol to one that expects the "stream" protocol, and the opposite of awesomeness ensues. This patch adds an OPTIONAL (but enabled by default) protocol identifier as the first member of any protocol structure. This identifier is simply a unique QSTR chosen by the protocol designer and used by each protocol implementer. When checking for protocol support, instead of just checking whether the object's type has a non-NULL protocol field, use `mp_proto_get` which implements the protocol check when possible. The existing protocols are now named: protocol_framebuf protocol_i2c protocol_pin protocol_stream protocol_spi protocol_vfs (most of these are unused in CP and are just inherited from MP; vfs and stream are definitely used though) I did not find any crashing examples, but here's one to give a flavor of what is improved, using `micropython_coverage`. Before the change, the vfs "ioctl" protocol is invoked, and the result is not intelligible as json (but it could have resulted in a hard fault, potentially): >>> import uos, ujson >>> u = uos.VfsPosix('/tmp') >>> ujson.load(u) Traceback (most recent call last): File "", line 1, in ValueError: syntax error in JSON After the change, the vfs object is correctly detected as not supporting the stream protocol: >>> ujson.load(p) Traceback (most recent call last): File "", line 1, in OSError: stream operation not supported

Move font dependency to extmod from stm32

2019-10-13T23:33:03+00:00

More make_new updates

2019-01-19T01:09:56+00:00

Compress all translated strings with Huffman coding.

2018-08-17T00:40:57+00:00

This saves code space in builds which use link-time optimization. The optimization drops the untranslated strings and replaces them with a compressed_string_t struct. It can then be decompressed to a c string. Builds without LTO work as well but include both untranslated strings and compressed strings. This work could be expanded to include QSTRs and loaded strings if a compress method is added to C. Its tracked in #531.

extmod/modframebuf: Add 8-bit greyscale format (GS8).

2017-12-14T06:36:13+00:00

extmod/modframebuf: Add 2-bit color format (GS2_HMSB).

2017-12-14T06:13:02+00:00

This format is used in 2-color LED matrices and in e-ink displays like SSD1606.

all: Remove inclusion of internal py header files.

2017-10-04T01:37:50+00:00

Header files that are considered internal to the py core and should not normally be included directly are: py/nlr.h - internal nlr configuration and declarations py/bc0.h - contains bytecode macro definitions py/runtime0.h - contains basic runtime enums Instead, the top-level header files to include are one of: py/obj.h - includes runtime0.h and defines everything to use the mp_obj_t type py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h, and defines everything to use the general runtime support functions Additional, specific headers (eg py/objlist.h) can be included if needed.

all: Update Makefiles and others to build with new ports/ dir layout.

2017-09-06T04:09:13+00:00

Also renames "stmhal" to "stm32" in documentation and everywhere else.

extmod: Use MP_ROM_INT for int values in an mp_rom_map_elem_t.

2017-07-31T03:00:34+00:00