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FS#9174 - Lua Scripting Language for Rockbox
Attached to Project:
Rockbox
Opened by Dan Everton (safetydan) - Wednesday, 09 July 2008, 12:14 GMT+2
Last edited by Maurus Cuelenaere (mcuelenaere) - Thursday, 21 May 2009, 21:02 GMT+2
Opened by Dan Everton (safetydan) - Wednesday, 09 July 2008, 12:14 GMT+2
Last edited by Maurus Cuelenaere (mcuelenaere) - Thursday, 21 May 2009, 21:02 GMT+2
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DetailsHere is an (very, very) early proof of concept Lua viewer plugin (v.5.1.3).
Currently only a few functions are exported from the plugin API and it also lacks a setjmp/longjmp implementation for actual targets so error handling will go wrong very quickly. However it does work so far for simple scripts like the following: function sayhello(seconds) message = string.format("Hello from LUA for %d seconds", 5) rb.splash(seconds, message) end -- Drawn an X on the screen rb.clear() rb.drawline(0, 0, rb.LCD_WIDTH, rb.LCD_HEIGHT) rb.drawline(rb.LCD_WIDTH, 0, 0, rb.LCD_HEIGHT) rb.update() seconds = 5 rb.sleep(5 * rb.HZ) sayhello(seconds) 
lua-viewer-v0.patch
(593 KiB)
apps/plugins/CATEGORIES | 1 apps/plugins/viewers.config | 1 apps/plugins/lua/ldebug.c | 622 +++++ apps/plugins/lua/ldebug.h | 33 apps/plugins/lua/ltablib.c | 279 ++ apps/plugins/lua/lstrlib.c | 868 +++++++ apps/plugins/lua/lualib.h | 53 apps/plugins/lua/lundump.c | 225 + apps/plugins/lua/lundump.h | 36 apps/plugins/lua/lmem.c | 86 apps/plugins/lua/Makefile | 84 apps/plugins/lua/lvm.c | 763 ++++++ apps/plugins/lua/lmem.h | 49 apps/plugins/lua/rocklua.c | 93 apps/plugins/lua/ltable.c | 588 ++++ apps/plugins/lua/lvm.h | 36 apps/plugins/lua/lfunc.c | 174 + apps/plugins/lua/ltable.h | 40 apps/plugins/lua/lparser.c | 1339 +++++++++++ apps/plugins/lua/lfunc.h | 34 apps/plugins/lua/lparser.h | 82 apps/plugins/lua/lzio.c | 82 apps/plugins/lua/lbaselib.c | 654 +++++ apps/plugins/lua/lzio.h | 67 apps/plugins/lua/lstring.c | 111 apps/plugins/lua/lobject.c | 214 + apps/plugins/lua/lapi.c | 1085 +++++++++ apps/plugins/lua/lua.h | 388 +++ apps/plugins/lua/lstring.h | 31 apps/plugins/lua/lobject.h | 381 +++ apps/plugins/lua/lapi.h | 16 apps/plugins/lua/strcspn.c | 16 apps/plugins/lua/rocklibc.h | 47 apps/plugins/lua/lauxlib.c | 654 +++++ apps/plugins/lua/lauxlib.h | 174 + apps/plugins/lua/malloc.c | 5061 ++++++++++++++++++++++++++++++++++++++++++ apps/plugins/lua/strtoul.c | 53 apps/plugins/lua/ldo.c | 518 ++++ apps/plugins/lua/ldump.c | 164 + apps/plugins/lua/ldo.h | 57 apps/plugins/lua/rocklib.c | 108 apps/plugins/lua/rockmalloc.c | 80 apps/plugins/lua/strpbrk.c | 10 apps/plugins/lua/rocklib.h | 29 apps/plugins/lua/ltm.c | 75 apps/plugins/lua/lstate.c | 214 + apps/plugins/lua/ltm.h | 54 apps/plugins/lua/strstr.c | 16 apps/plugins/lua/lstate.h | 169 + apps/plugins/lua/SOURCES | 33 apps/plugins/lua/llex.c | 461 +++ apps/plugins/lua/lgc.c | 711 +++++ apps/plugins/lua/lopcodes.c | 102 apps/plugins/lua/rockconf.h | 68 apps/plugins/lua/llex.h | 81 apps/plugins/lua/lgc.h | 110 apps/plugins/lua/rockaux.c | 84 apps/plugins/lua/README | 19 apps/plugins/lua/lopcodes.h | 268 ++ apps/plugins/lua/strncat.c | 21 apps/plugins/lua/strtod.c | 64 apps/plugins/lua/llimits.h | 128 + apps/plugins/lua/lcode.c | 839 ++++++ apps/plugins/lua/lcode.h | 76 apps/plugins/lua/luaconf.h | 763 ++++++ apps/plugins/SUBDIRS | 5 apps/plugin.h | 2 firmware/include/ctype.h | 2 68 files changed, 19849 insertions(+), 2 deletions(-) |
This task depends upon
Closed by Maurus Cuelenaere (mcuelenaere)
Thursday, 21 May 2009, 21:02 GMT+2
Reason for closing: Accepted
Additional comments about closing: in r21020
Thursday, 21 May 2009, 21:02 GMT+2
Reason for closing: Accepted
Additional comments about closing: in r21020
I've added some extra functions to the rb lib (see attached diff)
I will test it later on a device but it looked good in sim.
* added more functions to rocklib
* added ability to use audiobuffer when out of pluginbuffer RAM
AFAIK, this is pretty stable; but I would like to get another dev to confirm that..
* Adds UNLIKELY & LIKELY
I tried v6 on the gigabeat and it looks as if numbers are not parsed correctly. I.e. the 5 seconds become 1075052544 - maybe to do with the fact that the only numerical datatype in LUA is float. Also the rectangle doesn't get drawn - I suspect for the same reason.
In the simulator (cygwin) it is worse. To get it to compile I had to make the "int error_no = 0;" unconditional. I didn't get it to draw anything, but the splash was displayed (with a rather big number).
But i got problems running the test script in the simulator.
The screen gets cleaned and nothing else happends.
* removes strtod
* adds strtol
* should completely remove floating-point support
If this version doesn't break somewhere/something I'll probably commit it soon.
* adds some more wrappers
* adds the current path & /.rockbox/rocks/viewers/ to the search path when including files