Explicit type casting to prevent warning.

Change-Id: Ib5be4ad6d4126d88f7c67d246bb085df1e813329

Adds various high bitdepth transform functions and tests.
Much of the changes are related to using typedefs tran_low_t
and tran_high_t for the final transform cofficients and intermediate
stages of the transform computation respectively rather than fixed
types int16_t/int. When vp9_highbitdepth configure flag is off,
these map tp int16_t/int32_t, but when the flag is on, they map
to int32_t/int64_t to make space for needed extra precision.

Change-Id: I3c56de79e15b904d6f655b62ffae170729befdd8

Change-Id: Ic53cdb8c9f8312e7404505fcec653d5b9e9587d1

On a Nexus 7, vpxenc (in realtime mode, speed -12)
reported a performance improvement of ~3.7%.

Change-Id: I428c72c40df82c6d537955e320a8debf99343004

levytamar82 authored Jul 24, 2014 and James Zern committed Jul 28, 2014

Remove all the redundant dct functions (dct4x4, dct8x8)
in avx2 except dct32x32 those functions were copied originally from dct_sse2

Change-Id: I742576fbf5175f3ac09f2076976a9247b259323e

_t is reserved by posix

+ switch to camelcase
  http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Type_Names

Change-Id: Id2d43931e9b6e16aa4b8e5e346eee08505bdccfb

used to wrap API functions to ensure full environment consistency as
opposed to the renamed ASM_REGISTER_STATE_CHECK which is used with
assembly functions.
currently checks the FPU tag word in x86/x86_64 gcc builds to ensure
emms has been called.

Change-Id: Ie241772dbf903d33d516a1add4c8c6783f2e1490

exercises the forward transforms
no idct/iht implementations, so the c-code is used

Change-Id: I76b4d1712f10225c1ffa5ffb0ed9a551e68b93b4

This commit enables the unit test for SSSE3 forward 8x8 2D-DCT.

Change-Id: Ie4aae84ac74f6eb1a80b62285c91632bd6db29f1

This commit reworks the unit test for 8x8 forward/inverse
transformation. It adds extreme input value test to detect overflow
issues in the intermediate steps.

It temporarily disables unit test for the SSSE3 version, which
showed overflow failure in the new test conditions.

Change-Id: I7caf10bba4b6db031add65d8c0eb99426b38aa42

Allow selectively building just the intrinsics for armv8

Change-Id: I2f29b2e4508b8b8e5649c2906b3159ad1d4ec477

Change-Id: I3edd4b956a1273d65547771bf43c5cdaea25e5d6

FwdTrans8x8HT is disabled as the tests currently fail.

note not all functions have NEON implementations:
- fdct8x8/fht8x8

Change-Id: I028bdec9a21eaaee2c5865470ab179aac403540e

Change-Id: I5259b68dc1bcceb153e3ffe638a79a59a3019e9d

Change-Id: I826655a708010149de231ca31a2e3ba4f1842c0c

Change-Id: I23ed873a6c47b15491a2ffbcdd4f0fdeef1207a0

Change-Id: I78f7012f967a777ddd39bae6671eb501df6bbfe8

For consistency with idct function names.

Change-Id: I7b6af2f92c66eff56f84ed29edc3a66af8dc421f

Just making fdct consistent with iht/idct/fht functions which all use
stride (# of elements) as input argument.

Change-Id: Ibc944952a192e6c7b2b6a869ec2894c01da82ed1

Also renaming dest_stride to stride in some places.

Change-Id: I75f602b623a5a7071d4922b747c45fa0b7d7a940

Renames:
  vp9_short_iht4x4_add     -> vp9_iht4x4_16_add
  vp9_short_iht8x8_add     -> vp9_iht8x8_64_add
  vp9_short_iht16x16_add_c -> vp9_iht16x16_256_add

Change-Id: Ibca7a188fd062b196787ac5efc1ea545e7f166c0

Renames:
  vp9_short_idct8x8_add    -> vp9_idct8x8_64_add
  vp9_short_idct8x8_1_add  -> vp9_idct8x8_1_add
  vp9_short_idct8x8_10_add -> vp9_idct8x8_10_add
  vp9_idct_add_8x8         -> vp9_idct8x8_add

Change-Id: Ifb8d3a45b4c0397aa805b30463f3d14581bf72c1

This commit reworked the unit test for 8x8 forward transform. It
allows scalability to cover various implemented versions.

Change-Id: I5594bd3e2307bb5bec764eaffd8860caa260e432

There is another unit test that has been failing randomly on win32
build. Investigation has shown that the failure was caused by simd
register state is not reset appropriately in the fdct8x8 test. This
commit added ClearSystemState() in the teardown of this test, tests
showed it resolved the random failure issue for win32 build.

Related issue: https://code.google.com/p/webm/issues/detail?id=614

Change-Id: I9381d0c1a6f4b855ccaeef1aca8c417ac8c71ee2

The mix use of double type and simd code caused invalid values stored
in double variables, further caused unit tests to fail. The failures
were only observed on x86-win32-vs9 build with vs2008.

Change-Id: If0131754a3bf217a5ace303b7963e8f5162c34b5

Make the codes consistent with conventions.

Change-Id: Id044ed8382f83a3c3f54f9edd569f00bcd0523db

Change-Id: I38fac90e0ed25cb747453ab1d6396187cf5ef3b9

comment out some unused parameters and adjust the format to avoid:
./test/fdct4x4_test.cc|27| warning C4138: '*/' found outside of comment

Change-Id: I60f93b4c3cd7e8d61f0de80019f3404b40161f03

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

Change-Id: I303febae56b4b990ea3798b8ebed94c0510ecf79

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 patch eliminates the intermediate diff buffer usage by
combining the short idct and the add residual into one function.
The encoder can use the same code as well.

Change-Id: Iacfd57324fbe2b7beca5d7f3dcae25c976e67f45

the one from gtest in this case: testing::internal::Random.
this will make the tests deterministic between platforms. addresses
issue #568.

Change-Id: I5a8a92f5c33f52cb0a219c1dd3d02335acbbf163

The commit added a final rounding choice for 8x8 forward dct to get
rid of a sign bias at DC position and improve the accuracry in term
of round trip error for 8x8 fDCT/iDCT.

This commit also enabled forward 8x8 dct test.

Change-Id: Ib67f99b0a24d513e230c7812bc04569d472fdc50

More cleanup to do after this,  but this is a good chunk of removing rtcd.

Change-Id: I551db75e341a0a85c3ad650df1e9a60dc305681a

Change-Id: Ib8f8a66c9fd31e508cdc9caa662192f38433aa3d

s/([vV][pP])8/$19/
additionally dct.h was removed; declare the _c functions that are used
in the tests. the TODO for conversion to parameterized tests still
remains.

Change-Id: I73db9425a57075bbb78a92693ba6b320578981cd

Change-Id: Ic084c475844b24092a433ab88138cf58af3abbe4

The transform functions in experimental branch absorbed a scaling
factor of 4 to allow quantization steps closer to unit quantizer.
This commit added scaling code in between forward and inverse
transform to properly account for the scaling factor.

Change-Id: I9a573ddc1ffa74973b34800a5da1a56dbabe0949

Set on all 16x16 intra/inter modes

Features:
- Butterfly fDCT/iDCT
- Loop filter does not filter internal edges with 16x16
- Optimize coefficient function
- Update coefficient probability function
- RD
- Entropy stats
- 16x16 is a config option

Have not tested with experiments.

hd:     2.60%
std-hd: 2.43%
yt:     1.32%
derf:   0.60%

Change-Id: I96fb090517c30c5da84bad4fae602c3ec0c58b1c

Also factorize ACMRandom to acm_random.h.

Change-Id: I3b6eeb36fcbf7ae6dd3d2892bc40348f5c17982b