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21 Commits

Author SHA1 Message Date
James Zern
66de69c1fe dsp/dec*.c: rework WEBP_USE_<arch> ifdef 
add a dummy init rather than repeating the '#ifdef WEBP_USE_...'
pattern.

Change-Id: I319bc7714f36b8a3d8b35f6474e5592a439aaf24
 2015-03-20 19:19:37 -07:00
James Zern
b969f5dfac dsp: normalize WEBP_TSAN_IGNORE_FUNCTION usage 
the attribute is only necessary in one location; remove it from the
prototypes.

Change-Id: I3820a3c34fbb029fd7ac69a1b0a9b76091bdbde2
 2015-02-13 15:23:40 -08:00
James Zern
860badcacc cosmetics: dec_sse2: add const to some casts 
source pointers are often cast to __m128*, retain the const in those
cases

Change-Id: I77decb55f1382bea4b646a11b77dfa40bf1ef94d
 2015-02-05 23:51:16 -08:00
Pascal Massimino
19f0ba0eb9 Implement true-motion prediction in SSE2 
(along with DC/HE/VE for chroma/luma16)

Overall effect is ~1% faster decoding.

Change-Id: I90917e050d61874cbc8da0e88f26b5dd6131c265
 2015-02-04 17:02:22 +01:00
James Zern
0db9031c79 dsp/dec_{neon,sse2}: VE4: normalize variable names 
use '0' rather than '_' when dealing with variables that result from a
shift

Change-Id: I29280c0dead645ce39dc4bb42c3e19929b302fd4
 2014-10-23 16:04:13 +02:00
Pascal Massimino
b7a33d7e91 implement VE4/HE4/RD4/... in SSE2 
(30% faster prediction functions, but overall speed-up is ~1% only)

Change-Id: I2c6e7074aa26a2359c9198a9015e5cbe143c2765
 2014-10-22 18:25:36 +02:00
James Zern
a4c3a31b8f WEBP_TSAN_IGNORE_FUNCTION: fix gcc compat warning 
move the attribute to the front of the function to quiet clang warning:
GCC does not allow no_sanitize_thread attribute in this position on a
function definition

Change-Id: Ie4cc6e35a07bd00eab67d9cd6801bd2be9cfe676
 2014-10-16 18:06:43 +02:00
Pascal Massimino
80247291c6 mark some init function as being safe for thread_sanitizer. 
introduces the macro WEBP_TSAN_IGNORE_FUNCTION

Change-Id: I3de2b6c1a2076fba4da7ae50322551e026b2082b
 2014-10-16 16:34:07 +02:00
skal
ea8b0a171d strong filtering speed-up (~2-3% x86, ~1-2% for NEON) 
Extract loop invariant and avoid storing/loading samples
if they can be re-used. This is particularly interesting when
a transpose is involved (HFilter16i).

Change-Id: I93274620f6da220a35025ff8708ff0c9ee8c4139
 2014-06-03 07:14:23 +02:00
Pascal Massimino
f60957bfd2 clean-up and slight speed-up in-loop filtering SSE2 
* remove some sign-bit flipping
* turn some macro into inline functions
* fix some 'const' in signatures
* clarify the int8/uint8 usage

Change-Id: Ib04459ac34cb280c57579c5d79a5efd2f8d5e99d
 2014-05-19 23:23:47 -07:00
James Zern
d038e6193b dec_sse2: drop SSE2 suffix from local functions 
Change-Id: Ie171778b84038d5b04c5dc6972f6015caf555882
 2014-04-02 23:10:39 -07:00
James Zern
5227d99146 drop: ifdef __cplusplus checks from C files 
the prototypes are already marked in the headers

Change-Id: I172fe742200c939ca32a70a2299809b8baf9b094
 2013-12-13 11:42:13 -08:00
skal
f9bbc2a034 Special-case sparse transform 
If the number of non-zero coeffs is <= 3, use a
simplified transform for luma.

Change-Id: I78a1252704228d21720d4bc1221252c84338d9c8
 2013-10-08 22:05:38 +02:00
James Zern
d640614d54 update copyright text 
rather than symlink the webm/vpx terms, use the same header as libvpx to
reference in-tree files

based on the discussion in:
https://codereview.chromium.org/12771026/

Change-Id: Ia3067ecddefaa7ee01550136e00f7b3f086d4af4
 2013-06-06 23:09:14 -07:00
skal
0d19fbff51 remove some -Wshadow warnings 
these are quite noisy, but it's not a big deal to remove
them.

Change-Id: I5deb08f10263feb77e2cc8a70be44ad4f725febd
 2013-01-22 23:06:28 +01:00
skal
35bfd4c08f add SSE2 version of Sum of Square error for 16x16, 16x8 and 8x8 case 
+ replace mm_set1_ps(0) by _mm_setzero_si128()

Change-Id: I4601033c27466532373f5dabfaf349ce5e5039da
 2012-11-14 06:16:49 +01:00
Pascal Massimino
7c6e60f4bd make *InitSSE2() functions be empty on non-SSE2 platform 
this avoids the '*.o has no symbols' warning messages

Change-Id: Idbaa02f5c2f7c632997a26f9507926922d191b6e
 2012-08-27 23:40:47 -07:00
James Zern
ad1e163a0d cosmetics: normalize copyright headers 
Change-Id: I5e2462b101e0447a4f15a1455c07131bc97a52dd
 2012-01-06 14:49:06 -08:00
James Zern
f06817aaea simplify checks for enabling SSE2 code 
also fixes build issues under vs11 which has a native arm compiler for
windows 8 targets

Change-Id: Id76c2deae9fc9de147d13ad0d34edffcb5a726c4
 2011-12-20 17:41:55 -08:00
James Zern
964387ed19 use WEBP_INLINE for inline function declarations 
removes a #define inline, objectionable in certain projects

Change-Id: Iebe0ce0b25a030756304d402679ef769e5f854d1
 2011-11-11 10:53:58 -08:00
Pascal Massimino
e06ac0887f create a separate libwebpdsp under src/dsp 
Gathers all DSP-related function (and SSE2 implementations).
Clean-up some unwanted symbolic dependencies so that webp_encode,
webp_decode and webp_dsp are truly independent libraries.

+ opportunistic clean-up:
  * remove unneeded VP8DspInitTables(), now integrated in VP8DspInit()
  * make consistent use of VP8GetCPUInfo() in the various DspInit() funcs
  * change OUT macro to DST
 2011-09-13 12:29:44 -07:00