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Change-Id: Ic1ce346a053800ae3b2d77178f46e6a388357f6d

Change-Id: Ic0b4e92cbaf813bcca8a8e9052c936c2e025e114

This is using a define instead of an enum to keep byte packing.

Change-Id: I3abb07c8bfe377e19be4531b624af7b7b4207792

Don't run rate_block (cost_coeffs) if distortion alone is enough to
surpass best_rd.

This decreases 2nd pass runtime on HD at speed 2 by about 2%. There is
zero effect on output if tx_cache is removed.

Change-Id: Ia3b1cc77bfbe6ee988c395fde06c0eb92940b784

average improvement ~2x-3x

Change-Id: I30abf4c92cddcc9e87b7a40d4106076e1ec701c2

1. The RD scores obtained during the tx size selection were stored in the
tx cache, and used to help make the tx decision for the following frames.
This wasn't used anymore in VP9 encoder. Recovered the related decision
making code from 1.5+ years ago, and borg tests didn't show any quality
gain. This patch removed it to lower the complexity.

2. An optimization was done after the above refactoring. If the tx_mode
is not TX_MODE_SELECT, we only need to test the chosen tx size instead
of all posible tx sizes. This gave a 1.5% average speed gain at speed 2,
and a 1% average speed gain at speed 3.

Change-Id: Id8cd650e066a8cef33829d8c15388a8138adc78c

Change-Id: I8877025e172fff29bc4e270790211463b676b4d7

Currently vp8 is not using the intra prediction functions in vpx_dsp.

Change-Id: I1522b5f5cb12a81999fb126cf7c62c70259e7a52

average improvement ~2x-3x

Change-Id: I6fc37191bf9cb5a67e1af9787d0d27659c17bdba

Change-Id: I9d613cbe9e76b5dd15e935878ef9fd04521690ba

Change-Id: I9582a8d74990125b71e8fe620f7f3f2585a30798

average improvement ~2x-4x

Change-Id: Id0bc600440f7ef53348f585ebadb1ac6869e9a00

Change-Id: Iefc2eb78e71472ecf51802ec59ff32caef4bd0f4

Change-Id: Idf572c22a87098665f5179dc3212a06d9a85a342

Change-Id: Ief8eea8fe6bef139d1e94f8d6dfac5a44efe785d

Change-Id: I264ca534cd7d4755906e20aea47e7a2523bca611

average improvement ~2x-4x

Change-Id: I93abc15389649c169bb8b69127c0b95407d34692

Clean up the forward 2D-DCT function names in vpx_dsp.

Change-Id: I3117978596d198b690036e7eb05fe429caf3bc25

The forward 32x32 2D-DCT functions are aligned in vpx_dsp folder.
The vp9_dct.h file is not effectively used now.

Change-Id: Ie7946b6fdd784b8e91496242337bc9002c75c281

* changes:
  Simplify is_skippable to point straight to eobs.
  Don't initialize extra context tree buffers for 4x8 and 8x4.

This completes the forward transform functions layout refactoring.

Change-Id: I996fb0fb795f41e2040f7b21db985774098aedbd

In newer version of x86inc.asm 'h' is used as a modifier for register
names.

Change-Id: Ie5b9dd2f91ecdc8f6f18b2701b6dc23042b604e4