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266868a40b
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12 Commits

Author SHA1 Message Date
Yi Luo
266868a40b Make butterfly_self() signature consistent with butterfly() 
- Refer to patch: 48fca113d inv_txfm_ssse3,butterfly: fix win32 abi
  compatibility.
- Change four butterfly() calls to butterfly_self(), to simplify the
  operations.

Change-Id: Ib2a8cfe6cddcaf0a59e6e6270d8380055ea42ef3
 2017-03-21 09:36:35 -07:00
Yi Luo
fedcf83f33 Improve idct32x32_1024_add SSSE3 intrinsics performance 
- Function level speed improves ~12%.

Change-Id: I9b7dbddabf08c7d0f6b25264e6074d5ccbe39290
 2017-03-14 14:04:08 -07:00
James Zern
48fca113d1 inv_txfm_ssse3,butterfly: fix win32 abi compatibility 
only the first 3 parameters can be aligned to 16 as required by __m128i,
make them all pointers for consistency.

since:
07c48ccfe Improve idct32x32_34_add SSSE3 intrinsics performance

BUG=webm:1384

Change-Id: I0324f701e723a27cb470036a180693ba8829d01d
 2017-03-10 19:57:17 -08:00
Yi Luo
327add990f Improve idct32x32_135_add SSSE3 intrinsics performance 
- Split the inv txfm into three parts to avoid stack spillover.
- Function level speed improves ~12%.
- Use function and macro to remove some repeated code.

Change-Id: I14f5f072334fd766808cb52bf648df792e7379ee
 2017-03-09 16:17:54 -08:00
Yi Luo
07c48ccfe0 Improve idct32x32_34_add SSSE3 intrinsics performance 
- Split the transform into first half and second half.
- Reschedule the instructions to avoid stack spillover.
- Function level speed improves ~16%.

Change-Id: I166889840d23aa8a273eca00f6fbdae8b4566f35
 2017-03-01 11:14:48 -08:00
Yi Luo
1f8e8e5bf1 Fix idct8x8 SSSE3 SingleExtremeCoeff unit tests 
- In SSSE3 optimization, 16-bit addition and subtraction would
  overflow when input coefficient is 16-bit signed extreme values.
- Function-level speed becomes slower (unit ms):
  idct8x8_64: 284 -> 294
  idct8x8_12: 145 -> 158.

BUG=webm:1332

Change-Id: I1e4bf9d30a6d4112b8cac5823729565bf145e40b
 2017-02-17 14:05:05 -08:00
Yi Luo
f62dcc9c33 Replace idct32x32_1024_add_ssse3 assembly with intrinsics 
- Encoding/decoding test, BQTerrace_1920x1080_60.y4m, on
  i7-6700, no obvious user-level speed performance downgrade.
- Passed unit tests.

Change-Id: I20688e0dd3731021ec8fb4404734336f1a426bfc
 2017-02-16 16:10:40 -08:00
Yi Luo
72a43e2378 Add idct32x32_135_add SSSE3 intrinsics 
- Replace the corresponding assembly code.
- No user level speed performance degrade.
- Unit tests passed.

Change-Id: Idd0c5a4bad4976f1617c34100cb46e75e3b961e5
 2017-02-16 11:29:34 -08:00
clang-format
4b402746ca apply clang-format 
Change-Id: I75e4a9e0b37bd4586f26c8d6c1fa27f3f6ff1bce
 2017-02-14 12:45:52 -08:00
Yi Luo
bd86de1ac8 Replace idct32x32_34_add_ssse3 assembly with intrinsics 
- No user-level speed performance change.
- Pass unit tests.

Change-Id: Idfc598e00f354265e41f6b3219f4734216c115c6
 2017-02-14 10:38:36 -08:00
Yi Luo
ac04d11abc Replace idct8x8_12_add_ssse3 assembly code with intrinsics 
- Performance achieves the same as assembly.
- Unit tests pass.

Change-Id: I6eacfbbd826b3946c724d78fbef7948af6406ccd
 2017-02-08 10:07:45 -08:00
Jingning Han
8f95389742 Add SSSE3 intrinsic 8x8 inverse 2D-DCT 
The intrinsic version reduces the average cycles from 183 to 175.

Change-Id: I7c1bcdb0a830266e93d8347aed38120fb3be0e03
 2017-02-01 14:47:53 -08:00