Commit Graph

71 Commits

Author SHA1 Message Date
Fritz Koenig
769f2424cc Removed unnecessary pxor.
There is no need to make sure that the lower byte of the
register is 0 because the downshift by 11 overwrites that byte.

Change-Id: I89cbf004b2ff532a2c68e0dc399c45a49cdad5a1
2010-09-13 18:34:34 -07:00
Fritz Koenig
a65cd3def0 Make block access to frame buffer sequential
Sequentially accessing memory from a low address to a high
address should make it easier for the processor to predict
the cache.

Change-Id: I1921ce996bdd547144fe864fea6435f527f5842d
2010-09-10 16:27:28 -07:00
Fritz Koenig
6d90f867e4 Merge branch 'master' of git://review.webmproject.org/libvpx 2010-09-09 08:54:21 -07:00
John Koleszar
c2140b8af1 Use WebM in copyright notice for consistency
Changes 'The VP8 project' to 'The WebM project', for consistency
with other webmproject.org repositories.

Fixes issue #97.

Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba
2010-09-09 10:01:21 -04:00
Fritz Koenig
3fb37162a8 Bilinear subpixel optimizations for ssse3.
Used pmaddubsw for multiply and add of two filter taps
at once for 16x16 and 8x8 blocks.

Change-Id: Idccf2d6e094561624407b109fa7e80ba799355ea
2010-09-07 17:19:40 -07:00
Fritz Koenig
93c32a55c2 Rework idct calling structure.
Moving the eob structure allows for a non-struct based
function to handle decoding an entire mb of
idct/dequant/recon data.  This allows for SIMD functions
to idct/dequant/recon multiple blocks at once.

SSE2 implementation gives 3% gain on Atom.

Change-Id: I8a8f3efd546ea4e0535f517d94f347cfb737c9c2
2010-08-23 08:58:54 -07:00
Jim Bankoski
b0660457fe Revert "Removed ssse3 sixtap code"
This reverts commit 6ea5bb85cd.
2010-08-19 15:58:27 -04:00
Scott LaVarnway
6ea5bb85cd Removed ssse3 sixtap code
Change-Id: I0f20fbb898ee31eb94a143471aa6f1ca17a229a4
2010-08-18 15:34:09 -04:00
Scott LaVarnway
b07e5b6fa1 Finished vp8_sixtap_predict4x4_ssse3 function
Added vp8_filter_block1d4_h6_ssse3 and vp8_filter_block1d4_v6_ssse3
assembly routines.  Also removed unused assembly.

Change-Id: I01c1021835f2edda9da706822345f217087ca0d0
2010-08-11 13:49:00 -04:00
Scott LaVarnway
e4fe866949 Added ssse3 version of sixtap filters
Improved decoder performance by 9% for the clip used.

Change-Id: I8fc5609213b7bef10248372595dc85b29f9895b9
2010-08-10 17:33:49 -04:00
Jan Kratochvil
0e8f108fb0 nasm: avoid space before the :data symbol type.
global label:data
           ^^

Provide nasm compatibility.  No binary change by this patch with yasm
on {x86_64,i686}-fedora13-linux-gnu.  Few longer opcodes with nasm on
{x86_64,i686}-fedora13-linux-gnu have been checked as safe.

Change-Id:	I10f17eb1e4d4a718d4ebd1d0ccddc807c365e021
2010-08-02 09:20:42 -04:00
Jeff Muizelaar
98fcccfe97 Change the x86 idct functions to do reconstruction at the same time
Change-Id: I896fe6f9664e6849c7cee2cc6bb4e045eb42540f
2010-07-23 15:21:36 -04:00
Jeff Muizelaar
b2fa74ac18 Combine idct and reconstruction steps
This moves the prediction step before the idct and combines the idct and
reconstruction steps into a single step. Combining them seems to give an
overall decoder performance improvement of about 1%.

Change-Id: I90d8b167ec70d79c7ba2ee484106a78b3d16e318
2010-07-23 15:21:36 -04:00
Yunqing Wang
bead039d4d Improve SSE2 loopfilter functions
Restructured and rewrote SSE2 loopfilter functions. Combined u and
v into one function to take advantage of SSE2 128-bit registers.
Tests on test clips showed a 4% decoder performance improvement on
Linux desktop.

Change-Id: Iccc6669f09e17f2224da715f7547d6f93b0a4987
2010-06-29 15:23:14 -04:00
Timothy B. Terriberry
9f81463454 Fix a linker error on x86-64 Linux when not using a version script.
If the version script produced by the libvpx build system is not
 used when linking a shared library on x86-64 Linux, the constant
 data in the subpel filters produces R_X86_64_32 relocation errors
 due to the use of wrt rip addressing instead of
 wrt rip wrt ..gotpcrel.
Instead of adding a new macro for this addressing mode, this patch
 sets the ELF visibility of these symbols to "hidden", which
 allows wrt rip addressing to work without a text relocation.
This allows building a shared library without using the provided
 build system or a separate version script.
Fixes http://code.google.com/p/webm/issues/detail?id=46

Change-Id: Ie108f9d9a4352e5af46938bf4750d2302c1b2dc2
2010-06-21 08:19:12 -04:00
John Koleszar
94c52e4da8 cosmetics: trim trailing whitespace
When the license headers were updated, they accidentally contained
trailing whitespace, so unfortunately we have to touch all the files
again.

Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-18 13:06:11 -04:00
Yunqing Wang
397aad3ec2 More on "some XMM registers are non-volatile on windows x64 ABI"
Add same fix in subpixel_sse2.asm.

Change-Id: Icfda6103cbf74ec43308e96961dd738aa823c14d
2010-06-15 09:11:26 -04:00
Makoto Kato
63ea8705eb some XMM registers are non-volatile on windows x64 ABI
XMM6 to XMM15 are non-volatile on Windows x64 ABI.  We have to save
these registers.

Change-Id: I4676309f1350af25c8a35f0c81b1f0499ab99076
2010-06-11 12:11:15 -04:00
Yunqing Wang
8873a93811 Improve vp8_sixtap_predict functions
Restructure vp8_sixtap_predict functions to eliminate extra 5-line
calculation while doing first-pass only. Also, combline functions
to eliminate usage of intermediate buffer. This gives decoder a 3%
performance gain on my test clips.

Change-Id: I13de49638884d1a57d0855c63aea719316d08c1b
2010-06-10 11:48:48 -04:00
John Koleszar
09202d8071 LICENSE: update with latest text
Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-06-04 16:19:40 -04:00
John Koleszar
0ea50ce9cb Initial WebM release 2010-05-18 11:58:33 -04:00