usynth

commit 22eb4e56d33c855f7b1ec28a6f7578ee5aac3e25
parent b2f9a43b178f574a9950b09b72b4ad8964df8411
Author: Pavel Renev <an2qzavok@gmail.com>
Date:   Thu, 12 Aug 2021 16:23:06 +0300

add params to usync, fix little-endiannes

Diffstat:
M
miditest.c
 | 
2
+-
M
progsynth.c
 | 
2
+-
M
usynth.c
 | 
48
+++++++++++++++++++++++++++++++++++++++++-------

3 files changed, 43 insertions(+), 9 deletions(-)
diff --git a/miditest.c b/miditest.c
@@ -15,7 +15,7 @@ main(void)
 	uint8_t msg[4];
 	char *mdev;
 	msg[0] = 0x90;
-	msg[1] = 0x10;
+	msg[1] = 0x64;
 	msg[2] = 127; 
 	mdev = "midithru/0";
 	struct mio_hdl *mh;
diff --git a/progsynth.c b/progsynth.c
@@ -21,7 +21,7 @@ s_init(char *sdev)
 	par.pchan = 2;
 	par.sig = 1;
 	par.bits = 16;
-	par.le = 0;
+	par.le = 1;
 	par.rate = 44100;
 	par.xrun = SIO_SYNC;
 	par.appbufsz = 1024;
diff --git a/usynth.c b/usynth.c
@@ -6,12 +6,15 @@
 #include <string.h>
 #include <assert.h>
 
+#include "arg.h"
 #include "util.h"
 #include "midi.h"
 #include "wavetable.h"
 #include "machine.h"
 #include "build.h"
 
+char *argv0;
+
 struct sio_hdl *sh;
 size_t bs;
 int16_t *sbuf;
@@ -31,7 +34,7 @@ s_init(char *sdev)
 	par.pchan = 2;
 	par.sig = 1;
 	par.bits = 16;
-	par.le = 0;
+	par.le = 1;
 	par.rate = 44100;
 	par.xrun = SIO_SYNC;
 	par.appbufsz = 1024;
@@ -42,23 +45,51 @@ s_init(char *sdev)
 	sio_start(sh);
 }
 
+void
+usage(void)
+{
+	fprintf(stderr, "usage: %s [-f rsnd/0] [-q rmidi/0] [-o record.pcm]  program\n", argv0); 
+	exit(0);
+}
+
 int
-main(int argc, char **argv)
+main(int argc, char *argv[])
 {
-	FILE *fp;
+	FILE *fp, *op;
+	char *mdev, *sdev, *fout;
+
+	mdev = "midithru/0";
+	sdev = "default";
+	fout = NULL;
+	op = NULL;
+	
+	ARGBEGIN {
+	case 'q':
+		mdev = EARGF(usage());
+		break;
+	case 'f':
+		sdev = EARGF(usage());
+	case 'o':
+		fout = EARGF(usage());
+		if (fout[0] == '-') op = stdout;
+		else op = fopen(fout, "w");
+		break;
+	default:
+		usage();
+	} ARGEND
 
 	fp = stdin;
-	if (argc == 2) {
-		fp = fopen(argv[1], "r");
+	if (argc == 1) {
+		fp = fopen(argv[0], "r");
 		if (fp == NULL) {
 			fprintf(stderr, "failed to open file %s\n", argv[1]);
 			exit(-1);
 		}
 	}
 
-	s_init("default");
+	s_init(sdev);
 	wt_init();
-	m_init("midithru/0");
+	m_init(mdev);
 	m_vector.note_on = note_on;
 	m_vector.note_off = note_off;
 
@@ -71,6 +102,9 @@ main(int argc, char **argv)
 		m_read();
 		fillbuf(sbuf, bs * 2);
 		n = sio_write(sh, sbuf, bs * 2 * sizeof(int16_t));
+		if (op != NULL)
+			fwrite(sbuf, bs * 2 * sizeof(int16_t), 1,
+			  op);
 	}
 }