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This fixes a problem with nyquist's TRIGGER retaining samples (see comment 2, Bug #2698). This version of samples.c was accidentally omitted from an earlier commit.

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This commit is contained in:
Roger Dannenberg 2021-03-29 16:14:09 -04:00
parent f1395ff621
commit 91a557d838
4 changed files with 12 additions and 6 deletions
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9
lib-src/libnyquist/nyquist/nyqsrc/samples.c
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@ -13,6 +13,7 @@
#include "sound.h"
#include "falloc.h"
#include "samples.h"
#include <limits.h>
LVAL s_next = NULL;
@ -115,10 +116,16 @@ LVAL snd_samples(sound_type s, int64_t len)
long vx = 0;
int blocklen;
register double scale_factor = s->scale;
len = (long) snd_length(s, len);
len = snd_length(s, len);
s = sound_copy(s);
xlsave1(v);
// xlisp's maximum vector size is limited. If we exceed the limit,
// we'll return a shorter array of samples than requested.
if (len > INT_MAX / sizeof(LVAL)) {
len = INT_MAX / sizeof(LVAL);
}
v = newvector(len);
while (len > 0) {

2
lib-src/libnyquist/nyquist/nyqsrc/trigger.c
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@ -48,7 +48,7 @@ the previous value so re-reading will not re-trigger.)
#include "cext.h"
#include "assert.h"
#define TRIGGERDBG 1
#define TRIGGERDBG 0
#define D if (TRIGGERDBG)
/* Note: this structure is identical to an add_susp structure up

2
nyquist/nyquist.lsp
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@ -668,7 +668,7 @@ loop
(ny:error "SAMPLER" 2 '((SOUND) "modulation") modulation))
(ny:assert-sample "SAMPLER" 3 "table" sample)
(ny:typecheck (not (integerp npoints))
(ny:error "BUZZ" 3 '((INTEGER) "npoints") npoints))
(ny:error "SAMPLER" 3 '((INTEGER) "npoints") npoints))
(let ((samp (car sample))
(samp-pitch (cadr sample))
(samp-loop-start (caddr sample))

5
nyquist/seq.lsp
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@ -199,9 +199,8 @@
;; a more helpful stack trace for SAL.
(defmacro trigger (input beh)
`(let* ((nyq%environment (nyq:the-environment))
(gate%signal (force-srate *sound-srate* ,input))
(s%rate (snd-srate gate%signal)))
(snd-trigger gate%signal
(s%rate *sound-srate*))
(snd-trigger (force-srate *sound-srate* ,input)
#'(lambda (t0) (eval-seq-behavior ,beh "TRIGGER")))))