This commit enables configurable reference buffer pointer for intra
predictor. This allows later removal of spatial dependency between
blocks inside a 64x64 superblock in the rate-distortion optimization
loop.

Change-Id: I02418c2077efe19adc86e046a6b49364a980f5b1

Remove vp9_intra4x4_predict(). Use the common intra prediction
function for all block sizes.

Change-Id: Ibd19d51dfa3da8bbdfb79ddeb81530b2e2089560

Improve the round-trip precision to meet the unit test setttings.

Change-Id: I303febae56b4b990ea3798b8ebed94c0510ecf79

Removing block index (ib) parameter from get_tx_type_{8x8, 16x16}
functions.

Change-Id: Ia213335aae7a7cb027f97b9cc9b04519840250f1

This commit enables 8x8 DCT and hybrid transform unit tests. It
also tunes the forward hybrid transform rounding opertions for
more precise round-trip performance.

Change-Id: If05c1ce59d75d641b9c6c91527d02d3a6ef498c3

This reduces 16x16 2D-DCT runtime from 865 cycles to 837 cycles.

Change-Id: I137758b81cd127b936175284310e81378db64552

This commit makes use of the butterfly structure to enable the sse2
version implementation of 8x8 ADST/DCT hybrid transform coding.

The runtime of hybrid transform module goes down from 1170 cycles
to 245 cycles. Overall speed-up around 1.5%.

Change-Id: Ic808ffd21ece8a9d0410d8c0243d7b6c28ac3b3f

for all regular inter frames at speed 1

Change-Id: I0a8b301273ecf2b8730ab1f6b7a05f89f4d498e0

Instead, just allocate a few bytes on the stack, this is 4k, which isn't
all that much.

Change-Id: I82af6ee89e6ed01faaa23ff891ee7ced76df8c16

Using MV instead of int_mv for function arguments.

Change-Id: Ic25e13dccbc98fac1fa1b3255127e00cca2a57f6

Change-Id: I8fcab81e390f93dc17e9666bbf8f77883b5aa897

Change-Id: Ia40229903c08f14020e90e94cfdf494aba1be827

Fixes a crash on Windows when building with MSVC.

Change-Id: I124ac756a1be55d190fadda5fcc46d23b1445dbf

Change vp9_block_error() to return a 64bit error variable, change all
callers to expect a 64bit return value (this will prevent overflows,
which we basically don't check for at all right now). Remove duplicate
block_error() function, which fixed that through truncation. Remove
old (incompatible) mmx/sse2 block_error SIMD versions and replace with
a new one that returns a 64bit value.

Encoding time of first 50 frames of bus @ 1500kbps goes from 3min29 to
3min23, i.e. a 3% overall speedup.

Change-Id: Ib71ac5508b5ee8a80f1753cd85d72df1629abe68

3% faster overall (3min35.0 to 3min28.5).

Change-Id: I5ff8a5c2c91586b6632ca5009ad1ea51ce94af5e

and remove unused code.

Change-Id: If380440c4450294b5450b7a9eeb94a376846ec01

Change-Id: I7960178c95c54d5c4497e44cfc8c493566294b34

Encoding of bus @ 1500kbps (first 50 frames) goes from 3min57 to
3min35, i.e. approximately a 10.5% speedup. Note that the SIMD versions
which use a bilinear filter (x_offset & 7 || y_offset & 7) aren't
perfectly interleaved, and can probably be improved further in the
future. I've marked this with a few TODOs/FIXMEs in the code.

Change-Id: I5c9e900c0f0d32e431a50fecae213b510b2549f9

Improves the rd modeling function and implements them using interpolation
from a table which is a little faster. Also uses sse as input to the
modeling function rather than var - since there is no dc prediction
used and as a result the sse works a little better.

derfraw300: +0.05%
Speedup: ~1%

Change-Id: I151353c6451e0e8fe3ae18ab9842f8f67e5151ff

adds a new speed feature to force partitioning to be greater than
or less than a certain size

Change-Id: I8c048eeeef93700ae822eccf98f8751a45b2e7d0

this feature lets you set a partitioning size to be used by the entire
frame.

Change-Id: I208a4c8c701375cbb054418266f677768b6f8f06

This uses variance to split partition. Variance is calculated using
nearest mv,  always from last ref frame.

Change-Id: Idd015b4a9aa3bc82591759eac239680c07496896

Change-Id: Ie24489a4d39f3e53e816eeebf75a1c9c7d94515a

Change-Id: Ideee45cad8b38087c509cd404484728e85d0c427

This uses the speed feature functionality for code.

Change-Id: I9cd16c0c5f98520ae27ebba81aa2c178546587f8

force us to go through slow partitioning for keyframes, altref and
overlays.

Change-Id: I1a286361bf74083e71973575a7296be46eb98742

Overall speedup around 5% (bus @ 1500kbps first 50 frames 4min10 ->
3min58). Specific changes to timings for each function compared to
original assembly-optimized versions (or just new version timings if
no previous assembly-optimized version was available):

sse2   4x4:    99 ->   82 cycles
sse2   4x8:           128 cycles
sse2   8x4:           121 cycles
sse2   8x8:   149 ->  129 cycles
sse2   8x16:  235 ->  245 cycles (?)
sse2  16x8:   269 ->  203 cycles
sse2  16x16:  441 ->  349 cycles
sse2  16x32:          641 cycles
sse2  32x16:          643 cycles
sse2  32x32: 1733 -> 1154 cycles
sse2  32x64:         2247 cycles
sse2  64x32:         2323 cycles
sse2  64x64: 6984 -> 4442 cycles

ssse3  4x4:           100 cycles (?)
ssse3  4x8:           103 cycles
ssse3  8x4:            71 cycles
ssse3  8x8:           147 cycles
ssse3  8x16:          158 cycles
ssse3 16x8:   188 ->  162 cycles
ssse3 16x16:  316 ->  273 cycles
ssse3 16x32:          535 cycles
ssse3 32x16:          564 cycles
ssse3 32x32:          973 cycles
ssse3 32x64:         1930 cycles
ssse3 64x32:         1922 cycles
ssse3 64x64:         3760 cycles

Change-Id: I81ff6fe51daf35a40d19785167004664d7e0c59d

need to rework these

Change-Id: I17dc2c88d2faadd2f8fb117c52c25f04ea2e9856

Change-Id: I26e80ede80cb4389378a95afa95d229092a9859a

Optimized the quantization function by making it a two-pass
process. The first pass does a quick checking of the transform
coefficients against the base ZBIN, and only keep the good
enough set of coefficients for quantization. A skipping
check is added. If all coefficients are within the base ZBIN, no
quantization is needed. The second pass is the actual quantization
pass, which only processes the coefficient subset determined
in first pass. This reduces the computation. Furthermore, an
alternitive method is used for large transform size, which often
has sparse nonzero quantized coefficients.

Overall, the encoder speedup is about 4%. The quantization function
itself gets 20% faster.

Change-Id: I3a9dd0da6db030260b6d9c314a9fa48ecae89f22

Change-Id: Ic924f07c6ab0c929c6cdf11880d3c625806e272c

Change-Id: I183a38997a9d01e4a1b869e92509f6915216fa09

This commit makes use of dual fdct32x32 versions for rate-distortion
optimization loop and encoding process, respectively. The one for
rd loop requires only 16 bits precision for intermediate steps.
The original fdct32x32 that allows higher intermediate precision (18
bits) was retained for the encoding process only.

This allows speed-up for fdct32x32 in the rd loop. No performance
loss observed.

Change-Id: I3237770e39a8f87ed17ae5513c87228533397cc3

This seems to only be used in the encoder. Also remove an empty wrapper
file that contained forward declarations for this function, but didn't
actually define any actual functions.

Change-Id: Ifc561eef7ebe374a7d03698055e51e105f6d614b

Moving single function from vp9_invtrans.c to vp9_encodemb.c.

Change-Id: I26bf6bb90de342a3036c0dbfba78a7dd75a61fe7

2.5% faster when encoding first 50 frames of bus @ 1500kbps.

Change-Id: I5a64703996cf7fd39b07e32c72311c4b125ec6d4

Change-Id: I5d3944051d091b4bf3eb13e2a30132d34203ef74

All elements of this table are equal to 252, so replace it with a
single constant VP9_COEF_UPDATE_PROB.

Change-Id: I1e2d1d284326ce6df9899a740c2fc344b3ec81c9

The encoding time for bus at CIF goes from 661s to 625s. This commit
also enabled unit test of sad8x4/4x8 in sad_test.cc.

Change-Id: If3d10ebb56bda584bdb69bcf056599d580b12cb1

No bitstream or output change - only cosmetics.

Change-Id: Ic8c1d7ad010a87dcf27d12a38cd7dd5adba683a7