shithub: neindaw

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trying things out

--- /dev/null

+++ b/.gitignore

@@ -1,0 +1,3 @@

+*.6

+6.*

+*.dsp.c

--- /dev/null

+++ b/README.md

@@ -1,0 +1,6 @@

+# faust9p

+

+Tools to compile [FAUST](https://faust.grame.fr) DSP code to a 9p

+server, provide UI to control DSP, etc.

+

+WIP, nothing to look at yet

--- /dev/null

+++ b/arch.c

@@ -1,0 +1,58 @@

+/*

+Plan 9 C architecture for Faust.  This provides a file system with UI

+elements exported as files and directories.

+*/

+

+#include <u.h>

+#include <libc.h>

+#include "uiglue.h"

+

+#define max(x,y) (((x) > (y)) ? (x) : (y))

+#define min(x,y) (((x) < (y)) ? (x) : (y))

+

+<<includeIntrinsic>>

+<<includeclass>>

+

+#define DSP mydsp

+

+#include "dspf.h"

+

+static DSPf dspf = {

+	.new = newmydsp,

+	.init = instanceInitmydsp,

+	.delete = deletemydsp,

+	.metadata = metadatamydsp,

+	.num_in = getNumInputsmydsp,

+	.num_out = getNumOutputsmydsp,

+	.clear = instanceClearmydsp,

+	.reset_ui = instanceResetUserInterfacemydsp,

+	.build_ui = buildUserInterfacemydsp,

+	.compute = computemydsp,

+};

+

+static void

+usage(char *prog)

+{

+	print("usage: %s [-s SAMPLE_RATE]\n", prog);

+	exits("usage");

+}

+

+void

+main(int argc, char **argv)

+{

+	int sample_rate;

+

+	sample_rate = 44100;

+	ARGBEGIN{

+	case 's':

+		sample_rate = atoi(ARGF());

+		break;

+	default:

+		usage(argv[0]);

+	}ARGEND

+

+	classInitmydsp(sample_rate);

+	build_fs(&dspf);

+

+	exits(nil);

+}

--- /dev/null

+++ b/dspf.h

@@ -1,0 +1,14 @@

+typedef struct {

+	DSP *(*new)(void);

+	void (*init)(DSP *dsp, int sample_rate);

+	void (*delete)(DSP *dsp);

+	void (*metadata)(MetaGlue *glue);

+	int (*num_in)(DSP *dsp);

+	int (*num_out)(DSP *dsp);

+	void (*clear)(DSP *dsp);

+	void (*reset_ui)(DSP *dsp);

+	void (*build_ui)(DSP *dsp, UIGlue *glue);

+	void (*compute)(DSP *dsp, int count, FAUSTFLOAT **in, FAUSTFLOAT **out);

+}DSPf;

+

+void build_fs(void *dspf);

--- /dev/null

+++ b/faust9p.sh

@@ -1,0 +1,4 @@

+#!/bin/sh

+set -e

+

+faust -lang c -a arch.c $@ -o /dev/stdout | sed 's/new\([^(]*\)() /new\1(void) /'

--- /dev/null

+++ b/fs.c

@@ -1,0 +1,46 @@

+#include <u.h>

+#include <libc.h>

+#include "uiglue.h"

+typedef struct DSP DSP;

+#include "dspf.h"

+

+typedef struct {

+	void *metaInterface;

+	void (*declare)(void *metaInterface, const char *key, const char *value);

+}MetaGlue;

+

+static char *meta = nil;

+static int metalen = 0;

+

+static void

+addmeta(void *metaInterface, const char *k, const char *v)

+{

+	int klen, vlen;

+

+	USED(metaInterface);

+

+	if (strchr(k, '/') != nil) /* ignore library-specific meta */ 

+		return;

+

+	klen = strlen(k);

+	vlen = strlen(v);

+	meta = realloc(meta, metalen + klen + 1 + vlen + 2);

+	strcpy(meta+metalen, k);

+	metalen += klen;

+	meta[metalen++] = '\t';

+	strcpy(meta+metalen, v);

+	metalen += vlen;

+	meta[metalen++] = '\n';

+	meta[metalen] = 0;

+}

+

+void

+build_fs(void *dspf)

+{

+	DSPf *f;

+	MetaGlue mg;

+

+	f = dspf;

+	mg.declare = addmeta;

+	f->metadata(&mg);

+}

--- /dev/null

+++ b/gen.sh

@@ -1,0 +1,7 @@

+#!/bin/sh

+set -e

+

+for i in *.dsp; do

+	class=$(grep -o declare.*name.* kick_drum.dsp | head -1 | sed 's/^[^"]*//g;s/[^A-Za-z0-9]//g')

+	./faust9p.sh -cn $class $i > $i.c

+done

--- /dev/null

+++ b/kick_drum.dsp

@@ -1,0 +1,15 @@

+// Simple kick drum

+declare name "Kick Drum";

+declare group "synthesis";

+import("stdfaust.lib");

+

+aFreq = vslider("h:a/[0]frequency", 100, 10, 200, 5);

+aA = vslider("h:a/[1]attack", 0.001, 0.00001, 0.2, 0.001);

+aD = vslider("h:a/[2]delay", 0.01, 0.00001, 1.0, 0.001);

+aR = vslider("h:a/[3]release", 0.001, 0.00001, 1.0, 0.001);

+bA = vslider("h:b/[0]attack", 0.001, 0.00001, 0.2, 0.001);

+bFreq = checkbox("h:control/[1]b enable") * vslider("h:b/[1]frequency", 200, -400, 400, 5);

+bR = vslider("h:b/[2]release", 0.001, 0.00001, 0.2, 0.001);

+gate = button("h:control/[0]gate");

+

+process = os.oscsin(aFreq + bFreq*en.ar(bA, bR, gate)) * en.adsr(aA, aD, 0.000001, aR, gate) <: _, _;

--- /dev/null

+++ b/math.h

@@ -1,0 +1,3 @@

+#define sinf sin

+#define cosf cos

+#define floorf floor

--- /dev/null

+++ b/mkfile

@@ -1,0 +1,11 @@

+</$objtype/mkfile

+

+TARG=kick_drum

+BIN=/$objtype/bin

+OFILES=\

+	fs.$O\

+	kick_drum.dsp.$O\

+

+default:V:	all

+

+</sys/src/cmd/mkone

--- /dev/null

+++ b/uiglue.h

@@ -1,0 +1,24 @@

+#ifndef FAUSTFLOAT

+#define FAUSTFLOAT float

+#endif

+

+typedef struct {

+	void *uiInterface;

+	void (*openTabBox)(void *uiInterface, const char *label);

+	void (*openHorizontalBox) (void *uiInterface, const char *label);

+	void (*openVerticalBox)(void *uiInterface, const char *label);

+	void (*closeBox)(void *uiInterface);

+	void (*addButton)(void *uiInterface, const char *label, FAUSTFLOAT *zone);

+	void (*addCheckButton)(void *uiInterface, const char *label, FAUSTFLOAT *zone);

+	void (*addVerticalSlider)(void *uiInterface, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step);

+	void (*addHorizontalSlider)(void *uiInterface, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step);

+	void (*addNumEntry)(void *uiInterface, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step);

+	void (*addHorizontalBargraph)(void *uiInterface, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT min, FAUSTFLOAT max);

+	void (*addVerticalBargraph)(void *uiInterface, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT min, FAUSTFLOAT max);

+	void (*declare)(void *uiInterface, FAUSTFLOAT *zone, const char *key, const char *value);

+}UIGlue;

+

+typedef struct {

+	void *metaInterface;

+	void (*declare)(void *metaInterface, const char *key, const char *value);

+}MetaGlue;