From: Juergen Kreileder <jk@blackdown.de>
Date: Mon, 20 Mar 2006 20:24:13 +0000 (+0000)
Subject: Fixes S16 byte swapping with generic dmix code
X-Git-Tag: v1.0.11rc4~7
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=8ef339762a0b76e0b2ce2b7bab534fe4c51a3e41;p=alsa-lib.git

Fixes S16 byte swapping with generic dmix code

Here's a patch for generic dmix which fixes S16 byte swapping.

Tested on powerpc with snd-usb-audio.  (Without the patch I get crackling.)

Signed-off-by: Juergen Kreileder <jk@blackdown.de>
---

diff --git a/src/pcm/pcm_dmix_generic.c b/src/pcm/pcm_dmix_generic.c
index 4e45ba89..3f39ba4d 100644
--- a/src/pcm/pcm_dmix_generic.c
+++ b/src/pcm/pcm_dmix_generic.c
@@ -194,7 +194,7 @@ static void mix_areas1_swap(unsigned int size,
 	register signed int sample;
 
 	for (;;) {
-		sample = bswap_16(*src);
+		sample = (signed short) bswap_16(*src);
 		if (! *dst) {
 			*sum = sample;
 			*dst = *src;
@@ -205,7 +205,7 @@ static void mix_areas1_swap(unsigned int size,
 				sample = 0x7fff;
 			else if (sample < -0x8000)
 				sample = -0x8000;
-			*dst = bswap_16((signed short)sample);
+			*dst = (signed short) bswap_16((signed short) sample);
 		}
 		if (!--size)
 			return;