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Merge "Fix SATURATE_LEFT_SHIFT_ALT() since it returned 0x80000000 in certain cases"

This commit is contained in:
Jean-Michel Trivi 2018-12-27 00:55:34 +00:00 committed by Gerrit Code Review
parent f59fd73d44 edbb4b0a14
commit 27894057af
1 changed files with 5 additions and 5 deletions
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10
libFDK/include/scale.h
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@ -268,11 +268,11 @@ inline void scaleValueInPlace(FIXP_DBL *value, /*!< Value */
* to avoid problems when inverting the sign of the result.
*/
#ifndef SATURATE_LEFT_SHIFT_ALT
#define SATURATE_LEFT_SHIFT_ALT(src, scale, dBits) \
(((LONG)(src) > ((LONG)(((1U) << ((dBits)-1)) - 1) >> (scale))) \
? (LONG)(((1U) << ((dBits)-1)) - 1) \
: ((LONG)(src) < ~((LONG)(((1U) << ((dBits)-1)) - 2) >> (scale))) \
? ~((LONG)(((1U) << ((dBits)-1)) - 2)) \
#define SATURATE_LEFT_SHIFT_ALT(src, scale, dBits) \
(((LONG)(src) > ((LONG)(((1U) << ((dBits)-1)) - 1) >> (scale))) \
? (LONG)(((1U) << ((dBits)-1)) - 1) \
: ((LONG)(src) <= ~((LONG)(((1U) << ((dBits)-1)) - 1) >> (scale))) \
? ~((LONG)(((1U) << ((dBits)-1)) - 2)) \
: ((LONG)(src) << (scale)))
#endif