[Asterisk-cvs] asterisk/include/asterisk utils.h,1.46,1.47

[kpfleming]

Update of /usr/cvsroot/asterisk/include/asterisk
In directory mongoose.digium.com:/tmp/cvs-serv2563/include/asterisk

Modified Files:
	utils.h 
Log Message:
ensure that SLINEAR volume adjustments don't wrap around short integer maximums


Index: utils.h
===================================================================
RCS file: /usr/cvsroot/asterisk/include/asterisk/utils.h,v
retrieving revision 1.46
retrieving revision 1.47
diff -u -d -r1.46 -r1.47
--- utils.h	24 Oct 2005 20:12:06 -0000	1.46
+++ utils.h	28 Oct 2005 21:35:55 -0000	1.47
@@ -168,7 +168,37 @@
 	\param s	String to be decoded 
  */
 void ast_uri_decode(char *s);
+
+static inline void ast_slinear_saturated_add(short *input, short value)
+{
+	int res;
+
+	res = *input + value;
+	if (res > 32767)
+		*input = 32767;
+	else if (res < -32767)
+		*input = -32767;
+	else
+		*input = (short) res;
+}
 	
+static inline void ast_slinear_saturated_multiply(short *input, short value)
+{
+	int res;
+
+	res = *input * value;
+	if (res > 32767)
+		*input = 32767;
+	else if (res < -32767)
+		*input = -32767;
+	else
+		*input = (short) res;
+}
+
+static inline void ast_slinear_saturated_divide(short *input, short value)
+{
+	*input /= value;
+}
 
 extern int test_for_thread_safety(void);