| | <<<Back 1 day (to 2015/05/30) | 20150531 |
| rnd5233 | hello | 10:10.14 |
| ghostbot | Welcome to #ghostscript, the channel for Ghostscript and MuPDF. If you have a question, please ask it, don't ask to ask it. Do be prepared to wait for a reply as devs will check the logs and reply when they come on line. | 10:10.14 |
| Robin_Watts | rnd5233: You were asking about mujs the other day? | 10:17.40 |
| | The main developer for it has just disappeared on an extended holiday. | 10:19.30 |
| | So while we can try to help you with questions, truly authoratitive answers may take a while. | 10:20.08 |
| rnd5233 | yeah i did, ok, thank you Robin_Watts | 10:32.02 |
| | im still trying to figure out how it works to be able to implement it | 10:32.39 |
| | what is the function that defines the console behaviour? | 10:32.57 |
| | nevermind, sorry, jsdump.c | 10:34.17 |
| sebras | Robin_Watts: agh! the jpegxr reference implementation is not so fun. even gs uses a temporary file for it. :( | 10:51.26 |
| | Robin_Watts: the library assumes that you have a FILE* that you can read from. | 10:51.46 |
| rnd5233 | waw..... | 11:37.11 |
| Robin_Watts | rnd5233: Sorry, had stepped afk. | 11:37.23 |
| rnd5233 | do you use codeblocks Robin_Watts ? | 11:37.34 |
| Robin_Watts | I don't use js :) | 11:37.44 |
| | At least, not when I can avoid it. | 11:37.52 |
| | sebras: I would imagine that it would be relatively easy to hack/wrap the lib so that the FILE * stuff can be made a void *. | 11:38.18 |
| rnd5233 | Robin_Watts: what have you used to build mujs on windows? | 11:39.41 |
| Robin_Watts | rnd5233: It builds as part of the standard mupdf build. | 11:40.00 |
| | so there is a msvc project for it. | 11:40.10 |
| rnd5233 | im using mingw through codeblocks and its autobuild | 11:40.15 |
| | ah, right, but i dont have msvc compiler :( | 11:40.33 |
| Robin_Watts | rnd5233: Well, I don't think there is any magic to it. | 11:40.47 |
| | You can get MSVC 2013/2015 for free - see the 'community editions'. | 11:41.10 |
| rnd5233 | i managed to build the mujs alone, but when im trying to embed it into my project am getting an undefined reference to `js_newstate(vo that shouldn't be there! | 11:42.03 |
| | no i cant use msvc :( | 11:42.20 |
| Robin_Watts | ah, now a direct question like that I may be able to answer :) | 11:42.39 |
| | gimme a mo. | 11:42.50 |
| rnd5233 | ill upload the output, do you want to check the tree? | 11:43.27 |
| | the autobuild thing bases the linking in it | 11:44.02 |
| | well.. if you check the output it just compiles what's in the tree display | 11:44.51 |
| | ill upload both two outputs / standalone and embed | 11:45.14 |
| Robin_Watts | mujs/jsstate.c contains a definition of js_newstate | 11:45.27 |
| rnd5233 | this is the standalone http://pastebin.com/5kdrgTiQ | 11:53.19 |
| | this another one, my project http://pastebin.com/2CUFd23a | 11:53.30 |
| | linking order seems ok, but im getting undef errors! | 11:53.52 |
| | going to ask in codeblocks wish they know whats going on cause i have no idea... | 11:54.22 |
| sebras | Robin_Watts: it is relatively easy, but I wonder why they didn't design it to take both FILE * and void * | 11:56.23 |
| | Robin_Watts: I got it working of course. | 11:56.34 |
| | rnd5233: can you fins js_newstate() in jsstate.c and js_freestate() in jsgc.c? | 12:03.35 |
| | fins -> find | 12:03.43 |
| rnd5233 | yeah they are there | 12:04.27 |
| | im using the same "untouched" files off the standalone test | 12:04.43 |
| sebras | rnd5233: does mingw have the nm tool? | 12:04.49 |
| | rnd5233: you can use it to find out if a symbol is present in an object file. | 12:05.09 |
| rnd5233 | let me check the bin/ | 12:05.26 |
| | sec | 12:05.27 |
| sebras | rnd5233: might be called something like mingw32-nm.exe in your case. | 12:05.27 |
| rnd5233 | found nm.exe | 12:07.54 |
| sebras | rnd5233: run nm obj/Debug/one.o | 12:10.14 |
| rnd5233 | mingw32-gcc-nm.exe | 12:10.26 |
| sebras | rnd5233: same, same. :) | 12:10.33 |
| | rnd5233: in the output you ought to find the js_newstate and js_freestate functions. | 12:10.51 |
| | rnd5233: if everything is good and well they ought to be preceeded by a 'T' | 12:11.29 |
| | rnd5233: this means that the function is in the object file and that it is exported so that you can link the object file into your stuff and use the function | 12:12.00 |
| rnd5233 | http://pastebin.com/5j6Yiajp | 12:12.24 |
| sebras | rnd5233: if you _do_ find 'T' then the problem must be that you are not linking one.o properly into your project. | 12:12.29 |
| rnd5233 | 000112c7 T _js_freestate | 12:13.17 |
| | i think i will finally have to craft a makefile..... | 12:13.35 |
| sebras | rnd5233: right, and in that last pastebin output you will find js_newstate. so it is not the compilation of one.c that is the problem. | 12:13.38 |
| | rnd5233: if you look at the link command in http://pastebin.com/2CUFd23a | 12:13.51 |
| rnd5233 | lib" -o bin\Debug\milanouncer.exe obj\Debug\main.o obj\Debug\one.o | 12:14.17 |
| | etc... | 12:14.29 |
| sebras | rnd5233: oh.. I notice that my dear browser has some rendering problems. :) the raw output and the rendered output from pastebin do not match! | 12:16.16 |
| rnd5233 | :S | 12:16.48 |
| | they gave me this link http://wiki.codeblocks.org/index.php?title=FAQ-Compiling_%28errors%29#Q:_How_do_I_troubleshoot_a_compiler_problem.3F | 12:17.15 |
| | do a re-build (or clean before build) really important | 12:17.48 |
| | ive manually deleted the obj folders also | 12:18.02 |
| sebras | rnd5233: in your main.cpp, what header files do you include? | 12:19.09 |
| | rnd5233: are they declared extern "C"? | 12:19.14 |
| rnd5233 | no they are static | 12:19.45 |
| sebras | rnd5233: from main.cpp you call js_newstate(), right? | 12:20.05 |
| rnd5233 | ah wait | 12:20.13 |
| | http://pastebin.com/1NhK36W7 | 12:20.54 |
| sebras | rnd5233: try extern "C" { #include "mujs.h" }; | 12:21.21 |
| rnd5233 | sec | 12:21.33 |
| | E:\CB_Projects\milanouncer\main.cpp|1399|error: stray '#' in program| | 12:23.42 |
| sebras | rnd5233: I think we got a pull request about this recently https://github.com/ccxvii/mujs/commit/4dbda84b9de1024c1a7aa8c2e4b7e214f71f1708#commitcomment-11439432 | 12:24.05 |
| rnd5233 | ah alright | 12:24.35 |
| | gonna try | 12:24.38 |
| sebras | rnd5233: but as was mentioned before the main developer is on an extended leave so I think he never had the time to do anything about that. | 12:24.39 |
| | rnd5233: I guess this may affect symbol name mangling but I rarely dabble in C++ so don't take my word for it. ;) | 12:25.23 |
| rnd5233 | i just have a few c++ classe could refactor them to c struts and try, going to try the flag first | 12:27.36 |
| | brb | 12:27.37 |
| | sebras: compiled without errors, thank you | 12:30.50 |
| | who has posted that patch? is he/she here? | 12:31.06 |
| sebras | rnd5233: no I don't think so. | 12:33.25 |
| rnd5233 | ok | 12:34.14 |
| sebras | rnd5233: judging by the name I guess it is someone in china that attempted to use mujs in a C++ project. | 12:34.40 |
| rnd5233 | hehe | 12:35.09 |
| | i think im missunderstanding what js_dostring do, pushes string, sets global pointer, calls the compiler, pops result. is that right? | 20:34.18 |
| | should i use it to compile a script that im storing within a std::string? should i otherwise use the js_dofile to run a script previously saved in a .js? | 20:36.11 |
| | should i use js_trap? how do you use to debug the stack? | 20:39.57 |
| | am kind of lost lol | 20:40.24 |
| | ive tried something like the configuration file example http://mujs.com/docs/examples but can't even get a pointer to the result and convert it and print it | 20:41.47 |
| | ill try pushing the script from a file in the standalone tomorrow | 20:44.33 |
| | if someone wants to answer me ill check the logs tomorrow in the morning | 20:45.01 |
| | gn everyone, thanks a lot! | 20:45.12 |
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