Commit Graph

4 Commits

Author SHA1 Message Date
Jingning Han
b67821f37b Factor forward 2D-DCT transforms into vpx_dsp
This commit factors the 4x4, 8x8, and 16x16 2D-DCT forward
transform operations into vpx_dsp folder.

Change-Id: I084b117b79c0925edcbcabb93f62b9f4bf8dbe7d
2015-07-22 15:48:17 -07:00
Jingning Han
7f629dfca4 SSSE3 assembly implementation of 8x8 Hadamard transform
It uses about 10% less CPU cycles than the SSE2 intrinsic
implementation.

Change-Id: I91017c0c068679a214b98cdd4cff3a6facfb7499
2015-04-04 09:59:37 -07:00
Jingning Han
540d910350 Fix potential overflow issue in SSSE3 forward 8x8 2D-DCT
The SSSE3 implementation might find a potential overflow issue in
its second 1-D transform, if all input residual pixels are close to
255. This commit fixes the issue and re-enables the unit test on
the SSSE3 version.

Change-Id: I0520478abdab7afd3ff2842516bec951111e9b3c
2014-06-03 14:21:47 -07:00
Deb Mukherjee
e272273443 Renames x86_64 specific asm files
Renames all x86_64 specific assembly files to consistently
end in _x86_64.asm. This will be useful for build systems to
handle these files differently.
All new 64-bit specific assembly files should use the new
naming convention.

Change-Id: I36c89584967c82ffc4088b1b5044ac15d2bb7536
2014-05-21 13:55:56 -07:00