Commit graph

16 commits

Author SHA1 Message Date
William Wilgus
614b189f7a lua rockaux.c filetol fix invalid conditional
Change-Id: Id31d3d8b571540394373a61ed213380c95a0eee2
2021-08-10 15:00:42 -04:00
William Wilgus
dcff9b85a3 lua latebound function update
return the nextfunction and nil instead of pairs it allows a faster
return to lua rather than calling the lua function
pcall(fnpairs) from c and returning the result back
into lua to kick off the search
yeah, no clue why I didn't realize that before..

testing in x86 and ARM..
its more RAM efficient to do the initial creation
of the stack in lua code for the __pairs functon
its not faster but being that its a one time hit per
iter creation the reduced churn alone should be worth it
along with a reduced peak RAM usage

fix bug where a failed module can not be reloaded

optimize filetol

fix potential bug in splash scroller when no break character is found
Change-Id: I42c922e07039a19138b97c0d0e80cf3cf2426471
2021-05-19 23:28:35 +00:00
William Wilgus
adff45ca21 lua -- temp loader
fix a few bugs, improve memory usage

Change-Id: I6ceefd033000a6178eab0dd513679b5d72cec81c
2021-05-06 21:36:55 -04:00
William Wilgus
557ff6a981 lua print_button script
also allow splash_scroller to be used as static text display

Change-Id: Idc8c9e60ada920e2d1abd5301b59bd235e21a1c2
2021-04-24 00:00:44 -04:00
William Wilgus
1aa739e3c3 lua misc tweaks and cleanup
checks button_status in rockev
strpbrk_n custom implementation allows setting max search len in source string
add some branch prediction where appropriate
fix formatting in splash_scroller script

Change-Id: Id5d8e9d83f4b3e361ccb67b403af8f9a8a31b8f0
2020-10-04 04:00:54 -04:00
William Wilgus
80c3b84e08 lua Add scrollable stack traceback WIP
lua currently splashes a stack traceback on error
for deep tracebacks and especially on devices with smaller screens
this leaves out a lot of vital information

in the past I have resorted to splitting the traceback string or
even saving the return to a file

This patch provides a scrollable buffer with rudimentary text reflow
to allow you to read the whole traceback string

Upon traceback if you press nothing the screen will display for 5 seconds
If you press OK or CANCEL it will quit immediately
PREV/NEXT scrolls the list on button press timeout is disabled

lua now provides rb.splash_scroller(timeout, str)

example script provided too

Change-Id: Idbc8ce0c514196f0fae48c43aeaea8b60d6da1a5
2020-10-03 22:09:52 +00:00
William Wilgus
3e2b50ed3b lua events from rockbox
This library allows events to be subscribed / recieved within a lua script
most events in rb are synchronous so flags are set and later checked by a
secondary thread to make them (semi?) asynchronous.

There are a few caveats to be aware of:

FIRST, The main lua state is halted till the lua callback(s) are finished
 Yielding will not return control to your script from within a callback
 Also, subsequent callbacks may be delayed by the code in your lua callback
SECOND, You must store the value returned from the event_register function
 you might get away with it for a bit but gc will destroy your callback
 eventually if you do not store the event
THIRD, You only get one cb per event type
 ["action", "button", "custom", "playback", "timer"]
 (Re-registration of an event overwrites the previous one)

Usage:
 possible events =["action", "button", "custom", "playback", "timer"]

 local evX = rockev.register("event", cb_function, [timeout / flags])
  cb_function([id] [, data]) ... end

 rockev.suspend(["event"/nil][true/false]) passing nil affects all events
  stops event from executing, any but the last event before
  re-enabling will be lost, passing false, unregistering or re-registering
  an event will clear the suspend

 rockev.trigger("event", [true/false], [id])
  sets an event to triggered,
  NOTE!, CUSTOM_EVENT must be unset manually
  id is only passed to callback by custom and playback events

 rockev.unregister(evX)
  Use unregister(evX) to remove an event
  Unregistering is not necessary before script end, it will be
  cleaned up on script exit

Change-Id: Iea12a5cc0c0295b955dcc1cdf2eec835ca7e354d
2019-07-19 20:48:34 -05:00
William Wilgus
eab73b3dee Lua replace fscanf
Rocklua was using the full fscanf implementation
to simply read %ld for the file:read("*n") function
wasting 1k on unneeded/unused functionality

Instead, I've implemented a filetol function to duplicate it
without the extra overhead using strtol which as an added bonus
ERANGE errors now resolve to LONG_MIN and LONGMAX instead of
integer overflow

filetol()
   reads long int from an open file, skips preceding
   whitespaces returns -1 if error, 1 on success.
   *num set to LONG_MAX or LONG_MIN on overflow.
   If number of digits is > than LUAI_MAXNUMBER2STR
   filepointer will continue till the next non digit
   but buffer will stop being filled with characters.
   Preceding zero is ignored.

Change-Id: Ia42d0f73c63a894625bca4581e9b7e1cc7387fd2
2018-10-29 23:22:35 -04:00
William Wilgus
73f2bd9c46 Lua remove gmtime.c use rb_plugin version instead
Change-Id: Ia6d47a13ec8ae407661a78c56513ac0c164216da
2018-10-28 07:15:29 -04:00
William Wilgus
07fed9053a lua optimize current_path function
frees up around 500 bytes by using the builtin string functionality

Change-Id: Icd4ec921d3fec339b8a4b7f80c9c63d51d4c101c
2018-10-15 18:24:10 +02:00
Thomas Martitz
35e8b1429a Rockbox as an application: Replace many occurences of #ifdef SIMULATOR with #if (CONFIG_PLATFORM & PLATFORM_HOSTED) (or equivalently).
The simulator defines PLATFORM_HOSTED, as RaaA will do (RaaA will not define SIMULATOR).
The new define is to (de-)select code to compile on hosted platforms generally.

Should be no functional change to targets or the simulator.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27019 a1c6a512-1295-4272-9138-f99709370657
2010-06-21 16:53:00 +00:00
Frank Gevaerts
530c25130f Make the sim buildable with mingw again
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26037 a1c6a512-1295-4272-9138-f99709370657
2010-05-14 22:57:52 +00:00
Maurus Cuelenaere
527b069653 Lua: implement the ^ and % operators
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22070 a1c6a512-1295-4272-9138-f99709370657
2009-07-27 16:06:51 +00:00
Maurus Cuelenaere
9bff845b49 Lua: because Rockbox doesn't support any current working directory functionality, 'hack' loadlib so it replace '$' in LUA_PATH_DEFAULT with the directory wherein the current script is.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21595 a1c6a512-1295-4272-9138-f99709370657
2009-07-01 17:01:22 +00:00
Maurus Cuelenaere
88cf5b307a Fix mingw & cygwin builds
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21075 a1c6a512-1295-4272-9138-f99709370657
2009-05-25 12:00:13 +00:00
Maurus Cuelenaere
cf87597226 Commit FS#9174: Lua scripting language by Dan Everton
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21020 a1c6a512-1295-4272-9138-f99709370657
2009-05-21 19:01:41 +00:00