This commit breaks the overly broad header files into more
targeted and smaller ones, to help better structure the system
layout.

Change-Id: I7b24559d3ea6e582cf5d9bbe8f71459f9824d71b

mi_grid_* are arrays of pointer to pointer. They save the pointers that point
to the MIs in cm->mi. But they are unnecessary and complicated. The original
goal was to remove MODE_INFO_t copy. But with an extra MODE_INFO_t pointer
inside MODE_INFO_t, same goal could be achieved.

This commit totally removes the mi_grid_* structures. But there are still
many dummy MODE_INFO_t inside cm->mi which are a waste of memory. Next commit
will do on-demand MODE_INFO_t allocation in order to save these memories.

Change-Id: I3a05cf1610679fed26e0b2eadd315a9ae91afdd6

Tokenization and Detokenization enhancements for 10/12 bit

Change-Id: I3c269ec30f8eb160ee024905638a193975237559

Change-Id: I1b3c5337f018dde27dc819ab18bd081d169a91e8

Change-Id: I5b050122e6ed183a5b33c1f38e4fbf63b6721062

Refactoring to remove some duplication of probability
tables between tokenization and detokenization.

Change-Id: I2fc6a6497f9c0410021a9b41f828bc58a864e466

Actually, it would be great to have two separate enums INTRA_MODES and
INTER_MODES in future.

Change-Id: I6c4147cf0002853da9c1e03fe9514eab876f01c8

Renames:
  mi_8x8 -> mi
  mode_info_stride -> mi_stride

Change-Id: I66f3e5fd1e7b7f46f108af5bb711c5fd9493c1be

Change-Id: I9a19eb96907f674e3ce1e573f5dd49f0fbf2ae4f

Change-Id: I1fe71e35b1e44da693b43d26607abb33efd56820

Change-Id: Iaac57b24f79cd205a8c62bc1177412d22f5787a8

- place extern within the macro
- use in the header only

Change-Id: I4274b345d8af9ef329c0eb9553a3ddaad70d1d26

Change-Id: I859719d41ced2e35d2765b636e627bb7edc3651e

Change-Id: Ic334da9aee968e33762c2b25d9fbad24c844b411

VS2013 Chromium builds failed with:
warning C4742: 'vp9_coefband_trans_8x8plus' has different alignment in

https://code.google.com/p/chromium/issues/detail?id=336620

Change-Id: I865f72bc23ae958531eeb5f497002c12e9a36fcd

Change-Id: I07470ad1b7a0344d088911428ffab8ba9a0d8708

Moving vp9_norm probability table from vp9_entropy.c to vp9_prob.c

Change-Id: Ie757b73860c6f43130790c332b292e2a1a81b788

string literal to int within an assert

Change-Id: I0c889256b67a078e6e2a79577f0b7ae084243258

Change-Id: Ic3bb862e93aedf6a489a33ea6f7e5097d96855ee

Also adding BAND_COEFF_CONTEXTS macro to simplify for loop logic.

Change-Id: I12a78a49cf1addf81e6b3fe2a3736ec2b79bd79e

Change-Id: Ic7f47a8d233daf5e61e82092865837ea4eda4095

Renaming constants for consistency:
  DCT_VAL_CATEGORY1 => CATEGORY1_TOKEN
  DCT_VAL_CATEGORY2 => CATEGORY2_TOKEN
  DCT_VAL_CATEGORY3 => CATEGORY3_TOKEN
  DCT_VAL_CATEGORY4 => CATEGORY4_TOKEN
  DCT_VAL_CATEGORY5 => CATEGORY5_TOKEN
  DCT_VAL_CATEGORY6 => CATEGORY6_TOKEN
  DCT_EOB_TOKEN     => EOB_TOKEN
  DCT_EOB_MODEL_TOKEN => EOB_MODEL_TOKEN
  MAX_ENTROPY_TOKENS => ENTROPY_TOKENS

Moving constants:
  INTER_MODE_CONTEXTS from vp9_entropy.h to vp9_blockd.h.
  EOSB_TOKEN from vp9_entropy.h to vp9_tokenize.h

Change-Id: I5fcbf081318e1d365792b6d290a930c6cb0f3fc2

Change-Id: I0e59d320407b3bed0ba3622a7b29975f6fad7ebf

Change-Id: Ie829ee58a55157e6972c63cebe69a5d0a3221349

Change-Id: I5556e8d1fc150be8a3e93af21900829b59a500dc

Change-Id: I00a5203c8ed76c184d936fccf93d76e7c06773d3

Change-Id: I473947b5ca70b7a81151926284bff86f8555492a

Change-Id: Ic316d3374ff9a2b43897272260947d56765a0fdd

Simplifies the code by implementing band mapping with static arrays.
A lot of the code complexity introduced in a previous patch
disappears.

Change-Id: Ia3fac36e594fb5ad2d55ae141c58bba4c55c2d28

Change-Id: I60e02fa3de930ff1f969687ab5af93dee40d86ad

Implements scan order to band map with arrays in both the encoder
and decoder to remove conditional statements.

Encoding seems to be about 1% faster at speed 0, tested on football.
Decoding seems to be about 0.5-1% faster on a set of 25 videos.

Change-Id: Idb233ca0b9e0efd790e30880642e8717e1c5c8dd

Change-Id: I12c67c8c0fa1aa7fb3f7d6cc2ef65be29c4ea292

Moving code that gets band_translate array from get_scan_and_band()
function to get_band_translate() function. Renaming get_scan_and_band() to
get_scan().

Change-Id: I43047c205a1ca2a6e24be44db39dc04b7a385008

Change-Id: If14265084e9b4c85c75b43e8d33a6fafad468cbc

Replacing
  22 with TREE_SIZE(MAX_ENTROPY_TOKENS)
  12 with MAX_ENTROPY_TOKENS

Change-Id: If24919336e8ace9cf64991bd5ae33fa6656f7b93

Values of MODE_UPDATE_PROB and VP9_COEF_UPDATE_PROB are equal, so replacing
them with one constant. Inlining appropriate arguments for functions:
  vp9_cond_prob_diff_update (encoder)
  vp9_diff_update_prob (decoder)

Change-Id: I1255a1cb477743b799b3bfbbcd8de6b32b067338

It is used only two times and it is more clear to use real type instead
of typedef.

Change-Id: Idc25c16504c3da4d040e0cdb33a2987631bb6a5b

Declaring vp9_pt_energy_class in vp9_entropy.h instead of many external
places.

Change-Id: I66e8a3fc119a43f88d130d0dae4133c825a047a3

Now we have entropy code separate from scan/iscan code. The next step
in future is to move iscan code from common part to the encoder.

Change-Id: Id9732f7d80aec00af35c1d58d1137c4c96c91451

Change-Id: I6973e7121b6393379b5759f288632e8eab763d3e