adding 3rd party externals to MobMuPlat

[batchku]

Hi Daniel, Moving the email discussion here for clarity (mark down) and posterity.

I think i've quite close here. I'm following your recommendation; my external is called "resonators~":

• i've cloned your MobMuPlat repo within my repo as a submodule and i've pulled in the libpd and pdparty submodules.
• i created a subfolder for my exteranl's .c file and it's helpfile in "libpd/pure-data/extra"
• i added the name of this subfolder to "libpd/pure-data/extra/Makefile.am"

  SUBDIRS=bob~ bonk~ choice fiddle~ loop~ lrshift~ pd~ pique sigmund~ stdout resonators~

• i added my externals set-up function in two places in "libpd/libpd_rapper/z_libpd.c"

  // (optional) built in pd externals setup functions
  #ifdef LIBPD_EXTRA
  void bob_tilde_setup();
  void bonk_tilde_setup();
  void choice_setup();
  void fiddle_tilde_setup();
  void loop_tilde_setup();
  void lrshift_tilde_setup();
  void pique_setup();
  void sigmund_tilde_setup();
  void stdout_setup();
  void resonators_tilde_setup();  //added by ali
  #endif

and

#ifdef LIBPD_EXTRA
  bob_tilde_setup();
  bonk_tilde_setup();
  choice_setup();
  fiddle_tilde_setup();
  loop_tilde_setup();
  lrshift_tilde_setup();
  pique_setup();
  sigmund_tilde_setup();
  stdout_setup();
  resonators_tilde_setup();  //added by ali
#endif

My only question is: The last time i was doing this, i also had to add a line near the top of "MMPViewController.m" like this:

extern void expr_setup(void);
extern void bonk_tilde_setup(void);
extern void choice_setup(void);
extern void fiddle_tilde_setup(void);
extern void loop_tilde_setup(void);
extern void lrshift_tilde_setup(void);
extern void sigmund_tilde_setup(void);
extern void pique_setup(void);
extern void resonators_tilde_setup(void);  //added by ali

However, in the current version of MobMuPlat, "MMPViewController.m" no longer lists any of those externals. Is that because those externals are now included in pd 0.47.1?

[batchku]

Update:

It is not necessary to add anything to "MMPViewController.m". In order to include additional externals, only changes to "libpd/pure-data/extra/Makefile.am" and "libpd/libpd_rapper/z_libpd.c" are necessary. I am successfully running a 3rd party DSP on my iPhone now.

-ali

[batchku]

I'm now trying to repeat this process (of adding 3rd party externals) for Android and am running into troubles; it seems that the core pd engine on the android side is pre-built and binaries for the 3rd party externals are included in your repo.

Can you recommend a way to add 3rd party externals to the Android build?

[monkeyswarm]

Oops apologies for delay. When using the normal distribution of libd for android, it does indeed use a prebuilt binary in a remote repository, which has only the built-in objects. You'll have to instead set up a build of libpd and pure data as local dependencies, add the object code to the externals folder, and recompile using the NDK (which should output a series of .so files. Note that I heard there have been changes to NDK/C/C++ support within Android Studio recently, so this process may have changed).