Re: [PD] pd.lib

And now with the attachment.

On Sat, Sep 26, 2009 at 03:24:34PM +0100, Chris McCormick wrote:

On Fri, Sep 25, 2009 at 03:51:06PM -0400, Mathieu Bouchard wrote:

...

On Thu, 24 Sep 2009, Damien Henry wrote:

...

Where can I find documentation about pd.lib ? Does anyone on the list
turn pd into a library ? for creating a DSP engine for instance ?

Bah, j'ai fait ça (libpd.so, libpd.dylib ...) sous forme d'un petit
changement de makefile, mais je n'ai rien fait de concret avec ça. j'avais juste espéré que ça inspire quelqu'un.

Il y a d'autres gens qui en ont fait une bibliothÚque aussi, mais à ce que je sache, pas quelque chose de générique comme libpd.so, plutÎt quelque chose pour faire de Pd un greffon dans un autre logiciel en particulier ou au mieux une interface générique qui n'est pas <m_pd.h> (par exemple VST...). Personnellement, j'ai pas regardé.

Well I think it would be of great benefit to Pd if we all stopped doing it in our own once off, implementation specific, half-arsed way and did it properly and robustly and submitted the code back to Miller. I already submitted some half-arsed code for this to him (see the attached patch against Makefile.in), but I think my chances aren't that great for getting it accepted, since it stinks! :)

Damien, if you want you can try with that patch and something like this:

void* launchpd(void* arg) { char* args[2] = {"pd", "-nogui"}; sys_printhook = (t_printhook)my_printhook; sys_main(2, args); }

I think a lot of people dream of a libpd which is independent of all the GUI code and the driver-specific audio code. It would be awesome if I could go:

t_pd* mypd = launchpd(); while (1) { mypd->getBuffer(mybuffer); }

It would certainly make it easier to make stuff like browser plugins. I dream of a day when we post the libpd code to the whatwg list and it gets accepted by all the major browsers, and then we have in-browser procedural audio for our web apps.

Chris.

---

http://mccormick.cx

--- ../../pd-0.42-5/src/makefile.in 2008-12-29 19:08:26.000000000 +0000 +++ makefile.in 2009-07-15 13:44:11.000000000 +0100 @@ -2,6 +2,7 @@ OBJ_DIR = ../obj BIN_DIR = ../bin PDEXEC = $(BIN_DIR)/pd +LIBPD = $(BIN_DIR)/libpd.a EXT= @EXT@ GUINAME= @GUINAME@

@@ -26,7 +27,7 @@ GLIB = @LIBS@

LDFLAGS = @LDFLAGS@ -LIB = @PDLIB@ +LIB = @LIBPD@

WARN_CFLAGS = -Wall -W -Wstrict-prototypes
-Wno-unused -Wno-parentheses -Wno-switch @@ -42,14 +43,14 @@

ASIOOBJ = $(ASIOSRC:.cpp=.o)

-SRC = g_canvas.c g_graph.c g_text.c g_rtext.c g_array.c g_template.c g_io.c
+LSRC = g_canvas.c g_graph.c g_text.c g_rtext.c g_array.c g_template.c g_io.c
g_scalar.c g_traversal.c g_guiconnect.c g_readwrite.c g_editor.c
g_all_guis.c g_bang.c g_hdial.c g_hslider.c g_mycanvas.c g_numbox.c
g_toggle.c g_vdial.c g_vslider.c g_vumeter.c
m_pd.c m_class.c m_obj.c m_atom.c m_memory.c m_binbuf.c
m_conf.c m_glob.c m_sched.c
s_main.c s_inter.c s_file.c s_print.c \

• s_loader.c s_path.c s_entry.c s_audio.c s_midi.c \

• s_loader.c s_path.c s_audio.c s_midi.c
  d_ugen.c d_ctl.c d_arithmetic.c d_osc.c d_filter.c d_dac.c d_misc.c
  d_math.c d_fft.c d_array.c d_global.c
  d_delay.c d_resample.c \

@@ -57,7 +58,12 @@ x_time.c x_acoustics.c x_net.c x_qlist.c x_gui.c x_list.c d_soundfile.c
$(SYSSRC)

-OBJ = $(SRC:.c=.o) +# the main() file isn't required by libpd +SRC = $(LSRC) s_entry.c

+OBJ = $(SRC:.c=.o)

+LOBJ = $(LSRC:.c=.o)

GSRC = @GUISRC@

@@ -123,6 +129,15 @@ $(PDEXEC): $(OBJ) $(BIN_DIR) cd ../obj; $(CC) $(LDFLAGS) $(DBG_CFLAGS) -o $(PDEXEC) $(OBJ) $(LIB)

+libpd: $(LOBJ) $(BIN_DIR)

• cd ../obj; $(AR) r $(LIBPD) $(LOBJ)
• @# linux
• @#cd ../obj; $(CC) -shared -Wl,-soname,libpd.so.1 -o libpd.so.$(PD_VERSION) $(LOBJ)
• @# mac OS
• @#cd ../obj; $(CC) -Wl,-dylib_install_name -Wl,libpd.dylib.$(PD_VERSION) -o libpd.dylib $(LOBJ)
• @# windows
• @#???

$(BIN_DIR)/pd-gui: $(GOBJ) $(GSRC) cd ../obj; $(CC) $(INCLUDE) -o $(BIN_DIR)/$(GUINAME) $(GOBJ) $(GLIB)

--- ../../pd-0.42-5/src/makefile.in 2008-12-29 19:08:26.000000000 +0000 +++ makefile.in 2009-07-15 14:16:53.000000000 +0100 @@ -2,6 +2,7 @@ OBJ_DIR = ../obj BIN_DIR = ../bin PDEXEC = $(BIN_DIR)/pd +LIBPD = $(BIN_DIR)/libpd.a EXT= @EXT@ GUINAME= @GUINAME@

@@ -42,14 +43,14 @@

ASIOOBJ = $(ASIOSRC:.cpp=.o)

-SRC = g_canvas.c g_graph.c g_text.c g_rtext.c g_array.c g_template.c g_io.c
+LSRC = g_canvas.c g_graph.c g_text.c g_rtext.c g_array.c g_template.c g_io.c
g_scalar.c g_traversal.c g_guiconnect.c g_readwrite.c g_editor.c
g_all_guis.c g_bang.c g_hdial.c g_hslider.c g_mycanvas.c g_numbox.c
g_toggle.c g_vdial.c g_vslider.c g_vumeter.c
m_pd.c m_class.c m_obj.c m_atom.c m_memory.c m_binbuf.c
m_conf.c m_glob.c m_sched.c
s_main.c s_inter.c s_file.c s_print.c \

• s_loader.c s_path.c s_entry.c s_audio.c s_midi.c \

• s_loader.c s_path.c s_audio.c s_midi.c
  d_ugen.c d_ctl.c d_arithmetic.c d_osc.c d_filter.c d_dac.c d_misc.c
  d_math.c d_fft.c d_array.c d_global.c
  d_delay.c d_resample.c \

@@ -57,7 +58,12 @@ x_time.c x_acoustics.c x_net.c x_qlist.c x_gui.c x_list.c d_soundfile.c
$(SYSSRC)

-OBJ = $(SRC:.c=.o) +# the main() file isn't required by libpd +SRC = $(LSRC) s_entry.c

+OBJ = $(SRC:.c=.o)

+LOBJ = $(LSRC:.c=.o)

GSRC = @GUISRC@

@@ -123,6 +129,15 @@ $(PDEXEC): $(OBJ) $(BIN_DIR) cd ../obj; $(CC) $(LDFLAGS) $(DBG_CFLAGS) -o $(PDEXEC) $(OBJ) $(LIB)

+libpd: $(LOBJ) $(BIN_DIR)

• cd ../obj; $(AR) r $(LIBPD) $(LOBJ)
• @# linux
• @#cd ../obj; $(CC) -shared -Wl,-soname,libpd.so.1 -o libpd.so.$(PD_VERSION) $(LOBJ)
• @# mac OS
• @#cd ../obj; $(CC) -Wl,-dylib_install_name -Wl,libpd.dylib.$(PD_VERSION) -o libpd.dylib $(LOBJ)
• @# windows
• @#???

$(BIN_DIR)/pd-gui: $(GOBJ) $(GSRC) cd ../obj; $(CC) $(INCLUDE) -o $(BIN_DIR)/$(GUINAME) $(GOBJ) $(GLIB)

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