Commit Graph

68 Commits

Author SHA1 Message Date
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