From 5af7081222ef801b23857fb904c78d0798f5d0df Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <eighthave@users.sourceforge.net>
Date: Mon, 10 Jan 2011 06:03:02 +0000
Subject: build Pd's extra as a libdir

svn path=/trunk/; revision=14694
---
 externals/extra/loop~/loop~-help.pd |  74 ++++++++++++++++
 externals/extra/loop~/loop~.c       | 164 ++++++++++++++++++++++++++++++++++++
 externals/extra/loop~/test-loop~.pd |  58 +++++++++++++
 3 files changed, 296 insertions(+)
 create mode 100644 externals/extra/loop~/loop~-help.pd
 create mode 100644 externals/extra/loop~/loop~.c
 create mode 100644 externals/extra/loop~/test-loop~.pd

(limited to 'externals/extra/loop~')

diff --git a/externals/extra/loop~/loop~-help.pd b/externals/extra/loop~/loop~-help.pd
new file mode 100644
index 00000000..a445b805
--- /dev/null
+++ b/externals/extra/loop~/loop~-help.pd
@@ -0,0 +1,74 @@
+#N canvas 33 0 647 662 12;
+#X floatatom 41 204 0 0 0 0 - - -;
+#X obj 254 382 print~;
+#X msg 254 347 bang;
+#X obj 41 338 loop~;
+#X floatatom 66 279 0 0 0 0 - - -;
+#X msg 55 252 bang;
+#X obj 183 382 print~;
+#X msg 183 347 bang;
+#N canvas 0 0 450 300 graph1 0;
+#X array array2 150000 float 0;
+#X coords 0 1 150000 -1 200 150 1;
+#X restore 393 464 graph;
+#X msg 393 622 \; array2 resize 150000;
+#X obj 25 613 soundfiler;
+#X obj 16 453 tabread4~ array2;
+#X obj 16 407 *~;
+#X obj 16 522 dac~;
+#X obj 16 499 hip~ 5;
+#X obj 62 411 samphold~;
+#X obj 16 430 +~;
+#X floatatom 96 303 0 0 0 0 - - -;
+#X obj 96 326 *~ 1000;
+#X msg 43 568 read ../doc/sound/bell.aiff array2;
+#X msg 43 591 read ../doc/sound/vocal.aiff array2;
+#X msg 47 229 set 0.5;
+#X text 95 196 left signal input is transposition (1 is normal \, 2
+is up an octave \, etc);
+#X text 82 4 loop~ - phase generator for looping samplers;
+#X text 116 228 set phase (0 to 1);
+#X text 104 253 reset phase to 0;
+#X text 104 278 right signal input is window size in samples;
+#X text 134 302 here's how to handle onsets;
+#X obj 16 476 *~;
+#X floatatom 167 432 0 0 0 0 - - -;
+#X obj 167 501 line~;
+#X obj 167 455 dbtorms;
+#X obj 167 478 pack 0 50;
+#X text 201 431 output level 0-100;
+#X text 187 326 print outputs;
+#X text 33 32 loop~ takes input signals to set a window size and transposition
+\, and outputs a phase and a sampled window size. The window size only
+changes at phase zero crossings and the phase output is adjusted so
+that changing window size doesn't change the transposition.;
+#X text 33 112 You can send "bang" or "set" message to force the phase
+to zero--you should mute the output before doing so. This may be desirable
+if you've set a large window size but then want to decrease it without
+waiting for the next phase crossing.;
+#X connect 0 0 3 0;
+#X connect 2 0 1 0;
+#X connect 3 0 6 0;
+#X connect 3 0 12 0;
+#X connect 3 0 15 1;
+#X connect 3 1 1 0;
+#X connect 3 1 12 1;
+#X connect 4 0 3 1;
+#X connect 5 0 3 0;
+#X connect 7 0 6 0;
+#X connect 11 0 28 0;
+#X connect 12 0 16 0;
+#X connect 14 0 13 0;
+#X connect 14 0 13 1;
+#X connect 15 0 16 1;
+#X connect 16 0 11 0;
+#X connect 17 0 18 0;
+#X connect 18 0 15 0;
+#X connect 19 0 10 0;
+#X connect 20 0 10 0;
+#X connect 21 0 3 0;
+#X connect 28 0 14 0;
+#X connect 29 0 31 0;
+#X connect 30 0 28 1;
+#X connect 31 0 32 0;
+#X connect 32 0 30 0;
diff --git a/externals/extra/loop~/loop~.c b/externals/extra/loop~/loop~.c
new file mode 100644
index 00000000..2f440030
--- /dev/null
+++ b/externals/extra/loop~/loop~.c
@@ -0,0 +1,164 @@
+/* loop~ -- loop generator for sampling */
+
+/*  Copyright 1997-1999 Miller Puckette.
+Permission is granted to use this software for any purpose provided you
+keep this copyright notice intact.
+
+THE AUTHOR AND HIS EMPLOYERS MAKE NO WARRANTY, EXPRESS OR IMPLIED,
+IN CONNECTION WITH THIS SOFTWARE.
+
+This file is downloadable from http://www.crca.ucsd.edu/~msp .
+
+*/
+
+#ifdef PD
+#include "m_pd.h"
+#endif
+
+typedef struct _loopctl
+{
+    double l_phase;
+    float l_invwindow;
+    float l_window;
+    int l_resync;
+} t_loopctl;
+
+static void loopctl_run(t_loopctl *x, float *transposein,
+        float *windowin, float *rawout, float *windowout, int n)
+{
+    float window, invwindow;
+    double phase = x->l_phase;
+    if (x->l_resync)
+    {
+        window = *windowin;
+        if (window < 0)
+        {
+            if (window > -1)
+                window = -1;
+            invwindow = -1/window;
+        }
+        else
+        {
+            if (window < 1)
+                window = 1;
+            invwindow = 1/window;
+        }
+        x->l_resync = 0;
+    }
+    else
+    {
+        window = x->l_window;
+        phase = x->l_phase;
+        invwindow = x->l_invwindow;
+    }
+    while (n--)
+    {
+        double phaseinc = invwindow * *transposein++;
+        double newphase;
+        float nwind = *windowin++;
+        if (phaseinc >= 1 || phaseinc < 0)
+            phaseinc = 0;
+        newphase = phase + phaseinc;
+        if (newphase >= 1)
+        {
+            window = nwind;
+            if (window < 0)
+            {
+                if (window > -1)
+                    window = -1;
+                invwindow = -1/window;
+            }
+            else
+            {
+                if (window < 1)
+                    window = 1;
+                invwindow = 1/window;
+            }
+            newphase -= 1.;
+        }
+        phase = newphase;
+        *rawout++ = (float)phase;
+        *windowout++ = window;
+    }
+    x->l_invwindow = invwindow;
+    x->l_window = window;
+    x->l_phase = phase;
+}
+
+static void loopctl_init(t_loopctl *x)
+{
+    x->l_window = 1;
+    x->l_invwindow = 1;
+    x->l_phase = 0;
+}
+
+static void loopctl_set(t_loopctl *x, float val)
+{
+    if (val < 0 || val > 1)
+        val = 0;
+    x->l_phase = val;
+    x->l_resync = 1;
+}
+
+#ifdef PD
+
+typedef struct _loop
+{
+    t_object x_obj;
+    t_float x_f;
+    t_loopctl x_loopctl;
+} t_loop;
+
+static t_class *loop_class;
+
+static void *loop_new(void)
+{
+    t_loop *x = (t_loop *)pd_new(loop_class);
+    loopctl_init(&x->x_loopctl);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+    outlet_new(&x->x_obj, gensym("signal"));
+    outlet_new(&x->x_obj, gensym("signal"));
+    return (x);
+}
+
+static t_int *loop_perform(t_int *w)
+{
+    t_loopctl *ctl = (t_loopctl *)(w[1]);
+    t_float *in1 = (t_float *)(w[2]);
+    t_float *in2 = (t_float *)(w[3]);
+    t_float *out1 = (t_float *)(w[4]);
+    t_float *out2 = (t_float *)(w[5]);
+    int n = (int)(w[6]);
+    loopctl_run(ctl, in1, in2, out1, out2, n);
+    return (w+7);
+}
+
+static void loop_dsp(t_loop *x, t_signal **sp)
+{
+    dsp_add(loop_perform, 6,
+        &x->x_loopctl, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec,
+            sp[0]->s_n);
+}
+
+static void loop_set(t_loop *x, t_floatarg val)
+{
+    loopctl_set(&x->x_loopctl, val);
+}
+
+static void loop_bang(t_loop *x)
+{
+    loopctl_set(&x->x_loopctl, 0);
+}
+
+void loop_tilde_setup(void)
+{
+    loop_class = class_new(gensym("loop~"), (t_newmethod)loop_new, 0,
+        sizeof(t_loop), 0, 0);
+    class_addmethod(loop_class, (t_method)loop_dsp, gensym("dsp"), A_CANT, 0);
+    CLASS_MAINSIGNALIN(loop_class, t_loop, x_f);
+    class_addmethod(loop_class, (t_method)loop_set, gensym("set"),
+        A_DEFFLOAT, 0);
+    class_addbang(loop_class, loop_bang);
+}
+
+#endif /* PD */
diff --git a/externals/extra/loop~/test-loop~.pd b/externals/extra/loop~/test-loop~.pd
new file mode 100644
index 00000000..9966483d
--- /dev/null
+++ b/externals/extra/loop~/test-loop~.pd
@@ -0,0 +1,58 @@
+#N canvas 33 0 680 609 12;
+#X floatatom 52 262 0 0 0 0 - - -;
+#X obj 261 346 print~;
+#X msg 47 373 bang;
+#X msg 274 313 bang;
+#X obj 52 306 loop~;
+#X floatatom 102 245 0 0 0 0 - - -;
+#N canvas 0 0 450 300 graph1 0;
+#X array array1 44100 float 0;
+#X coords 0 10 44100 0 200 150 1;
+#X restore 65 17 graph;
+#X msg 43 204 \; array1 resize 44100;
+#X obj 25 401 tabwrite~ array1;
+#X msg 208 371 bang;
+#X obj 176 402 tabwrite~ array1;
+#X msg 194 261 bang;
+#X obj 204 347 print~;
+#X msg 217 314 bang;
+#N canvas 0 0 450 300 graph1 0;
+#X array array2 150000 float 0;
+#X coords 0 1 150000 -1 200 150 1;
+#X restore 332 398 graph;
+#X msg 326 274 \; array2 resize 150000;
+#X obj 103 529 tabread4~ array2;
+#X obj 64 481 *~;
+#X obj 107 581 dac~;
+#X obj 105 552 hip~ 5;
+#X obj 123 482 samphold~;
+#X obj 102 506 +~;
+#X floatatom 106 430 0 0 0 0 - - -;
+#X obj 108 453 *~ 1000;
+#X obj 312 215 soundfiler;
+#X msg 330 170 read ../doc/sound/bell.aiff array2;
+#X msg 330 193 read ../doc/sound/vocal.aiff array2;
+#X connect 0 0 4 0;
+#X connect 2 0 8 0;
+#X connect 3 0 1 0;
+#X connect 4 0 12 0;
+#X connect 4 0 17 0;
+#X connect 4 0 8 0;
+#X connect 4 0 20 1;
+#X connect 4 1 10 0;
+#X connect 4 1 1 0;
+#X connect 4 1 17 1;
+#X connect 5 0 4 1;
+#X connect 9 0 10 0;
+#X connect 11 0 4 0;
+#X connect 13 0 12 0;
+#X connect 16 0 19 0;
+#X connect 17 0 21 0;
+#X connect 19 0 18 0;
+#X connect 19 0 18 1;
+#X connect 20 0 21 1;
+#X connect 21 0 16 0;
+#X connect 22 0 23 0;
+#X connect 23 0 20 0;
+#X connect 25 0 24 0;
+#X connect 26 0 24 0;
-- 
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