more optimizations...

calculate the offsets from the phase differently, this happens
to reduce the register pressure in the main loop, which in turns
allows the compiler to generate much better code (doesn't need
to spill a lot of stuff on the stack).

this gives another 15% performance increase

Change-Id: I2ce3479dd48b9e6941adb80e6d443d6e14d64d96

1 files changed, 0 insertions, 3 deletions

diff --git a/services/audioflinger/AudioResamplerSinc.h b/services/audioflinger/AudioResamplerSinc.h
index 96c31ee..09c6866 100644
--- a/services/audioflinger/AudioResamplerSinc.h
+++ b/services/audioflinger/AudioResamplerSinc.h
@@ -78,14 +78,11 @@ private:
     static const int32_t RESAMPLE_FIR_LERP_INT_BITS  = 7;
 
     struct Constants {
-        // we have 16 coefs samples per zero-crossing
         int coefsBits;
         int cShift;
         uint32_t cMask;
-
         int pShift;
         uint32_t pMask;
-
         // number of zero-crossing on each side
         unsigned int halfNumCoefs;
     };