This commit enables a chessboard pattern for partition search. All
the black blocks run regular partition search ranging from 8x8 to
32x32. The rest white blocks take the nearby blocks' information
to adaptively decide the effective search range.

The compression performance for rtc set at speed -5 is down by 1.5%.
For pedestrian 1080p at speed -5, the runtime goes from 41594 ms to
39697 ms, i.e., about 5% faster.

Change-Id: Ia4b96e237abfaada487c743bca08fe1afd298685

The test vector has segment enabled with different quantizer used for
different segments for bot the first frame(key) frame and the rest of
non-key frames.

Change-Id: I7e21122183050ee046219caba483c18cbc34afe7

Doesn't work. Doesn't build. Not supported.

Change-Id: I5a2f9965afdda82370049c10ebcbe77ac4c6c9b9

* changes:
  Turn on unit tests for SSSE3 8x8 forward and inverse 2D-DCT
  Change eob threshold for partial inverse 8x8 2D-DCT to 12
  SSSE3 8x8 inverse 2D-DCT with first 10 coeffs non-zero

tx_mode supercedes whatever mechanism is used to push for 16x16
allowing for the use of the 4x4 transform.

Change-Id: I6c3f05ab9fe52050e40cc6303de9334653763289

Change-Id: Ib773aac06b22009408cdd29a73190b276a53fcf6

Change-Id: Ib7a17893f6dc0f501b1252ae32804ede144dde37

We only used two members from that struct: max_threads and inv_tile_order.
Moving them directly to VP9Decoder struct.

Change-Id: If696a4e5b5b41868a55f3cc971e1d7c1dd9d5f69

This reverts commit 4725ab7e.

The constants are necessary to avoid breakage in vs9 builds:
 warning C4180: qualifier applied to function type has no meaning; ignored
 error C2436: 'f2_' : member function or nested class in constructor initializer list
 while compiling class template member function 'std::tr1::tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9>::tuple(const int &,const int &,unsigned int (__cdecl &))'
 ..\test\variance_test.cc : see reference to class template instantiation 'std::tr1::tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9>' being compiled

Change-Id: Ia218b74fc473d40f02fee84cb7009adfbe82e5a7

Change-Id: I68850699ecaebbbb7962cbc1c9bc85e92a0ea5ca

Abusing '[] && echo' resulted in the --verbose flag being required to
actually run tests.

Change-Id: I39edaa30a05272928f9f4a4bb8581f91d6fe824b

Change-Id: Ib0a73d4863478f9b8a00976379d25d2f6ebbb197

Some version of clang refuse 'asm volatile'

Change-Id: I79d909ac8ae3c04b608f20c6f10fa79b7f9fc8e0

Change-Id: I3edd4b956a1273d65547771bf43c5cdaea25e5d6

The scanning order has the first 12 coefficients of the 8x8 2D-DCT
sitting in the top left 4x4 block. Hence the partial inverse 8x8
2D-DCT allows to handle cases with eob below 12.

The overall runtime of the inverse 8x8 2D-DCT unit is reduced from
166 cycles (using SSE2) to 150 cycles (using SSSE3).

Change-Id: I4514f9748042809ac84df4c14382c00f313f1cd2

vp9_is_upper_layer_key_frame() definition does not match declaration--
it was missing the second const.

Change-Id: I71312579eb443be1924b8b06d8b3177c3dcb40f3

Change-Id: I5307fe85ee081fbcfdf55a974f7eba1e0070c723

Avoids getting reverted on the next libvpx chrome roll attempt.

Change-Id: I2431bd601111a78320af5f211f6413009674f1c8

This commit enables ssse3 assembly implementation of the 8x8
inverse 2D-DCT with only first 10 coefficients non-zero. The
average runtime for this unit goes down from 198 cycles to 129
cycles (34.8% faster).

Change-Id: Ie7fa4386f6d3a2fe0d47a2eb26fc2a6bbc592ac7