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fast_rsqrt_est
2001 Feb 03
1
fast math optimization patch
...everything
sounds fine to me, but I haven't done exhaustive testing (and I'm not
the world's
most critical listener).
Here is the blow by blow description of the patch:
- Add fast_math.[ch]
- fast_rsqrt_est -- fast reciprocal square root estimate (i.e.,
1.0/sqrt(x))
- fast_sqrt_est -- fast square root estimate
- fast_log_est -- fast natural log estimate
- Adds a IEEE structure for floats
- Adds VORBIS_EXACT_FLOAT_RESULTS. If this is defined, the
estimations are turned off.
- Modify os.h
- Remove _V_IFDEFJAIL_H_. The entire file is already in an _OS_H...