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Add inline function for signed linear subtraction.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@81326 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2007-08-29 02:21:08 +00:00
parent 225d9166ec
commit 440aab5ffa
1 changed files with 13 additions and 0 deletions
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13
include/asterisk/utils.h
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@@ -283,6 +283,19 @@ static force_inline void ast_slinear_saturated_add(short *input, short *value)
else
*input = (short) res;
}
static force_inline void ast_slinear_saturated_subtract(short *input, short *value)
{
int res;
res = (int) *input - *value;
if (res > 32767)
*input = 32767;
else if (res < -32767)
*input = -32767;
else
*input = (short) res;
}
static force_inline void ast_slinear_saturated_multiply(short *input, short *value)
{