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/******************************** Fraunhofer IIS ***************************
(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: ARM scaling operations
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(__GNUC__) /* GCC Compiler */ /* cppp replaced: elif */
#if defined(__ARM_ARCH_6__)
inline static INT shiftRightSat(INT src, int scale)
{
INT result;
asm(
"ssat %0,%2,%0;\n"
: "=&r"(result)
: "r"(src>>scale), "M"(SAMPLE_BITS)
);
return result;
}
#define SATURATE_INT_PCM_RIGHT_SHIFT(src, scale) shiftRightSat(src, scale)
inline static INT shiftLeftSat(INT src, int scale)
{
INT result;
asm(
"ssat %0,%2,%0;\n"
: "=&r"(result)
: "r"(src<<scale), "M"(SAMPLE_BITS)
);
return result;
}
#define SATURATE_INT_PCM_LEFT_SHIFT(src, scale) shiftLeftSat(src, scale)
#endif /* __ARM_ARCH_6__ */
#endif /* compiler selection */
#define FUNCTION_scaleValueInPlace
inline
void scaleValueInPlace(FIXP_DBL *value, /*!< Value */
INT scalefactor /*!< Scalefactor */
)
{
INT newscale;
if ((newscale = scalefactor) >= 0)
*value <<= newscale;
else
*value >>= -newscale;
}
#define SATURATE_RIGHT_SHIFT(src, scale, dBits) \
( (((LONG)(src) ^ ((LONG)(src) >> (DFRACT_BITS-1)))>>(scale)) > (LONG)(((1U)<<((dBits)-1))-1)) \
? ((LONG)(src) >> (DFRACT_BITS-1)) ^ (LONG)(((1U)<<((dBits)-1))-1) \
: ((LONG)(src) >> (scale))
#define SATURATE_LEFT_SHIFT(src, scale, dBits) \
( ((LONG)(src) ^ ((LONG)(src) >> (DFRACT_BITS-1))) > ((LONG)(((1U)<<((dBits)-1))-1) >> (scale)) ) \
? ((LONG)(src) >> (DFRACT_BITS-1)) ^ (LONG)(((1U)<<((dBits)-1))-1) \
: ((LONG)(src) << (scale))
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