From 9bf37cc9712506b2483650c82d3c41152337ef7e Mon Sep 17 00:00:00 2001
From: Dave Burke <daveburke@google.com>
Date: Tue, 17 Apr 2012 09:51:45 -0700
Subject: Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5
---
 libFDK/include/arm/fixmul_arm.h | 79 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 libFDK/include/arm/fixmul_arm.h

(limited to 'libFDK/include/arm/fixmul_arm.h')

diff --git a/libFDK/include/arm/fixmul_arm.h b/libFDK/include/arm/fixmul_arm.h
new file mode 100644
index 0000000..8cc448d
--- /dev/null
+++ b/libFDK/include/arm/fixmul_arm.h
@@ -0,0 +1,79 @@
+/***************************  Fraunhofer IIS FDK Tools  **********************
+
+                        (C) Copyright Fraunhofer IIS (2006)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   $Id$
+   Author(s):
+   Description: fixed point intrinsics
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+******************************************************************************/
+#if defined(__arm__)
+
+#if defined(__GNUC__) && defined(__arm__)	/* cppp replaced: elif */
+/* ARM with GNU compiler */
+
+#define FUNCTION_fixmuldiv2_DD
+
+#define FUNCTION_fixmuldiv2BitExact_DD
+#define fixmuldiv2BitExact_DD(a,b) fixmuldiv2_DD(a,b)
+#define FUNCTION_fixmulBitExact_DD
+#define fixmulBitExact_DD(a,b) fixmul_DD(a,b)
+
+#define FUNCTION_fixmuldiv2BitExact_DS
+#define fixmuldiv2BitExact_DS(a,b) fixmuldiv2_DS(a,b)
+
+#define FUNCTION_fixmulBitExact_DS
+#define fixmulBitExact_DS(a,b) fixmul_DS(a,b)
+
+#if defined(__ARM_ARCH_6__) || defined(__TARGET_ARCH_7E_M)
+inline INT fixmuldiv2_DD (const INT a, const INT b)
+{
+  INT result ;
+  __asm__ ("smmul %0, %1, %2" : "=r" (result)
+                              : "r" (a), "r" (b)) ;
+  return result ;
+}
+#else
+inline INT fixmuldiv2_DD (const INT a, const INT b)
+{
+  INT discard, result ;
+  __asm__ ("smull %0, %1, %2, %3" : "=&r" (discard), "=r" (result)
+                                  : "r" (a), "r" (b)) ;
+  return result ;
+}
+#endif
+
+#if defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_6__)
+#define FUNCTION_fixmuldiv2_SD
+inline INT fixmuldiv2_SD (const SHORT a, const INT b)
+{
+  INT result ;
+  __asm__ ("smulwb %0, %1, %2"
+    : "=r" (result)
+    : "r" (b), "r" (a)) ;
+  return result ;
+}
+#endif
+
+#endif /* defined(__GNUC__) && defined(__arm__) */
+
+#endif /* __arm__ */
+
-- 
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