From 45d27a52f17be05f5269d7dc37f380ed595196e7 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Fri, 22 Nov 2013 23:00:39 +0100
Subject: PcmUtils: add function PcmClampN()

---
 src/pcm/PcmUtils.hxx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/pcm/PcmUtils.hxx b/src/pcm/PcmUtils.hxx
index 108ba85ae..febe12d7b 100644
--- a/src/pcm/PcmUtils.hxx
+++ b/src/pcm/PcmUtils.hxx
@@ -63,4 +63,16 @@ PcmClamp(U x)
 	return T(x);
 }
 
+/**
+ * Check if the values in this buffer are within the range of the
+ * provided bit size, and clamps them whenever necessary.
+ */
+template<typename T, typename U, unsigned bits>
+static inline void
+PcmClampN(T *dest, const U *src, unsigned n)
+{
+	while (n-- > 0)
+		*dest++ = PcmClamp<T, U, bits>(*src++);
+}
+
 #endif
-- 
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