3 Commits

Author SHA1 Message Date
James Zern
d5104b1ff6 utils: add endian_inl.h
moves the following to this header:
- htole*() definitions from bit_writer.c
- __BIG_ENDIAN__ fallback define from bit_reader_inl.h

Change-Id: I7fff59543f08a70bf8f9ddac849b72ed290471b1
2014-07-03 13:07:14 -07:00
James Zern
1da3d46138 VP8LoadNewBytes: use __builtin_bswap32 if available
mostly to balance the use of bswap64, some gcc platforms are already
interpreting the default case the same

Change-Id: Icf860f55b3f16bea349a7d721e6d6abeeb4e5cf3
2014-06-24 23:24:36 -07:00
Pascal Massimino
09545eeadc lossy bit-reader clean-up:
* remove LEFT/RIGHT_JUSTIFY distinction. It's all RIGHT_JUSTIFY now.
* simplify VP8GetSigned(), and add some masking branch-less code. Much
  faster on ARM (~13% speed-up). 8% on x86-64, 5% on MacBook.
* split critical implementation into separate bit_reader_inl.h file that
  is only included where needed (vp8.c / tree.c / bit_reader.c)
* bumped BITS value from 16 to 24 for x86-32b too, since it's a bit faster.

Change-Id: If41ca1da3e5c3dadacf2379d1ba419b151e7fce8
2014-06-03 07:46:55 +02:00