From a5fc242946c8e15f26a7aa5cc2be9ea0d09b87bf Mon Sep 17 00:00:00 2001
From: Torbjörn Andersson
Date: Wed, 31 May 2006 22:37:28 +0000
Subject: Clip samp to 2047, not 2048, so that it stays positive when
 multiplied by 16. This seems to fix sound distortion in the Inherit the Earth
 demo.

svn-id: r22812
---
 sound/adpcm.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'sound')

diff --git a/sound/adpcm.cpp b/sound/adpcm.cpp
index 9522e588d0..519d0d738c 100644
--- a/sound/adpcm.cpp
+++ b/sound/adpcm.cpp
@@ -266,9 +266,9 @@ int16 ADPCMInputStream::decodeOKI(byte code) {
 	diff = (code & 0x08) ? -E : E;
 	samp = _status.last + diff;
 
-    // Clip the values to +/- 2^11 (supposed to be 12 bits)
-	if (samp > 2048)
-		samp = 2048;
+	// Clip the values to +/- 2^11 (supposed to be 12 bits)
+	if (samp > 2047)
+		samp = 2047;
 	if (samp < -2048)
 		samp = -2048;
 
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