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Optimisation changes in saturation functions am: 0708a5228b am: d3460df4ba

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Change-Id: I195fea5f115692bbca1098dd1fc174acddd84678
This commit is contained in:
Sushanth Patil 2020-04-22 16:30:12 +00:00 • committed by Automerger Merge Worker
commit 7fc8b0bc7b
1 changed files with 4 additions and 10 deletions
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14
decoder/ixheaacd_basic_ops32.h
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@ -180,11 +180,8 @@ static PLATFORM_INLINE WORD32 ixheaacd_add32_sat(WORD32 a, WORD32 b) {
sum = (WORD64)a + (WORD64)b; sum = (WORD64)a + (WORD64)b;
if ((((WORD32)a ^ (WORD32)b) & (WORD32)MIN_32) == 0) { if (sum >= MAX_32) return MAX_32;
if (((WORD32)sum ^ (WORD32)a) & (WORD32)MIN_32) { if (sum <= MIN_32) return MIN_32;
sum = (a < 0) ? MIN_32 : MAX_32;
}
}
return (WORD32)sum; return (WORD32)sum;
} }
@ -212,11 +209,8 @@ static PLATFORM_INLINE WORD32 ixheaacd_sub32_sat(WORD32 a, WORD32 b) {
diff = (WORD64)a - (WORD64)b; diff = (WORD64)a - (WORD64)b;
if ((((WORD32)a ^ (WORD32)b) & (WORD32)MIN_32) != 0) { if (diff >= MAX_32) return MAX_32;
if (((WORD32)diff ^ (WORD32)a) & (WORD32)MIN_32) { if (diff <= MIN_32) return MIN_32;
diff = (a < 0L) ? MIN_32 : MAX_32;
}
}
return (WORD32)diff; return (WORD32)diff;
} }