From 9609b6d4441f0f950da1655f5f1a6817463c3563 Mon Sep 17 00:00:00 2001
From: Christopher Pascoe <pascoe@cvs.openbsd.org>
Date: Thu, 14 Apr 2005 01:24:21 +0000
Subject: Correct signed/unsigned mismatches in compatibility macros and add
 mono-to-stereo variants for mulaw_to_slinear16

ok dlg@ jason@ mickey@
---
 sys/dev/mulaw.c | 32 +++++++++++++++++++++++++++++++-
 sys/dev/mulaw.h | 16 +++++++++-------
 2 files changed, 40 insertions(+), 8 deletions(-)

diff --git a/sys/dev/mulaw.c b/sys/dev/mulaw.c
index 0c7f7dcfce9..11d636643d5 100644
--- a/sys/dev/mulaw.c
+++ b/sys/dev/mulaw.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mulaw.c,v 1.11 2004/02/23 23:59:21 deraadt Exp $ */
+/*	$OpenBSD: mulaw.c,v 1.12 2005/04/14 01:24:20 pascoe Exp $ */
 /*	$NetBSD: mulaw.c,v 1.15 2001/01/18 20:28:20 jdolecek Exp $	*/
 
 /*
@@ -313,6 +313,21 @@ mulaw_to_slinear16_le(void *v, u_char *p, int cc)
 	}
 }
 
+void
+mulaw_to_slinear16_le_mts(void *v, u_char *p, int cc)
+{
+	u_char *q = p;
+
+	p += cc;
+	q += cc * 4;
+	while (--cc >= 0) {
+		--p;
+		q -= 4;
+		q[1] = q[3] = mulawtolin16[*p][0] ^ 0x80;
+		q[0] = q[2] = mulawtolin16[*p][1];
+	}
+}
+
 void
 mulaw_to_slinear16_be(void *v, u_char *p, int cc)
 {
@@ -328,6 +343,21 @@ mulaw_to_slinear16_be(void *v, u_char *p, int cc)
 	}
 }
 
+void
+mulaw_to_slinear16_be_mts(void *v, u_char *p, int cc)
+{
+	u_char *q = p;
+
+	p += cc;
+	q += cc * 4;
+	while (--cc >= 0) {
+		--p;
+		q -= 4;
+		q[0] = q[2] = mulawtolin16[*p][0] ^ 0x80;
+		q[1] = q[3] = mulawtolin16[*p][1];
+	}
+}
+
 void
 slinear16_to_mulaw_le(void *v, u_char* p, int cc)
 {
diff --git a/sys/dev/mulaw.h b/sys/dev/mulaw.h
index d7e5d2f3234..6d2c2d54828 100644
--- a/sys/dev/mulaw.h
+++ b/sys/dev/mulaw.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mulaw.h,v 1.11 2004/02/23 23:59:21 deraadt Exp $ */
+/*	$OpenBSD: mulaw.h,v 1.12 2005/04/14 01:24:20 pascoe Exp $ */
 /*	$NetBSD: mulaw.h,v 1.11 1999/11/01 18:12:19 augustss Exp $	*/
 
 /*-
@@ -46,7 +46,9 @@ extern void mulaw_to_ulinear16_be(void *, u_char *, int);
 extern void mulaw_to_ulinear16_be_mts(void *, u_char *, int);
 /* Convert 8-bit mu-law to/from 16 bit signed linear. */
 extern void mulaw_to_slinear16_le(void *, u_char *, int);
+extern void mulaw_to_slinear16_le_mts(void *, u_char *, int);
 extern void mulaw_to_slinear16_be(void *, u_char *, int);
+extern void mulaw_to_slinear16_be_mts(void *, u_char *, int);
 extern void slinear16_to_mulaw_le(void *, u_char *, int);
 /* Convert 8-bit mu-law to/from 8 bit unsigned linear. */
 extern void mulaw_to_ulinear8(void *, u_char *, int);
@@ -76,17 +78,17 @@ void mulaw_to_alaw(void *, u_char *, int);
 
 /* backwards compat for now */
 #if BYTE_ORDER == LITTLE_ENDIAN
-#define mulaw_to_ulinear16 mulaw_to_slinear16_le 
+#define mulaw_to_ulinear16 mulaw_to_ulinear16_le 
 #define alaw_to_ulinear16 alaw_to_ulinear16_le
-#define mulaw_to_slinear16 mulaw_to_ulinear16_le
-#define mulaw_to_slinear16_mts mulaw_to_ulinear16_le_mts
+#define mulaw_to_slinear16 mulaw_to_slinear16_le
+#define mulaw_to_slinear16_mts mulaw_to_slinear16_le_mts
 #define alaw_to_slinear16 alaw_to_slinear16_le
 #define alaw_to_slinear16_mts alaw_to_slinear16_le_mts
 #else
-#define mulaw_to_ulinear16 mulaw_to_slinear16_be 
+#define mulaw_to_ulinear16 mulaw_to_ulinear16_be 
 #define alaw_to_ulinear16 alaw_to_ulinear16_be
-#define mulaw_to_slinear16 mulaw_to_ulinear16_be
-#define mulaw_to_slinear16_mts mulaw_to_ulinear16_be_mts
+#define mulaw_to_slinear16 mulaw_to_slinear16_be
+#define mulaw_to_slinear16_mts mulaw_to_slinear16_be_mts
 #define alaw_to_slinear16 alaw_to_slinear16_be
 #define alaw_to_slinear16_mts alaw_to_slinear16_be_mts
 #endif
-- 
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