From 453b01522511b6caadad909e9fee6975ea3477cd Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Tue, 5 Aug 2008 20:51:30 -0700
Subject: Prevent a 0 or negative increment for the buffer position Thanks to
 Christopher Fitzgerald for pointing these last two problems out

---
 Alc/ALu.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'Alc/ALu.c')

diff --git a/Alc/ALu.c b/Alc/ALu.c
index 309035dd..2c5cde40 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -709,6 +709,8 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma
                     increment = (ALint)(Pitch*(ALfloat)(1L<<FRACTIONBITS));
                     if(increment > (MAX_PITCH<<FRACTIONBITS))
                         increment = (MAX_PITCH<<FRACTIONBITS);
+                    else if(increment <= 0)
+                        increment = (1<<FRACTIONBITS);
 
                     //Figure out how many samples we can mix.
                     DataSize64 = DataSize;
-- 
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