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24ad2e3c99
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2435 Commits

Author SHA1 Message Date
Vincent Rabaud
24ad2e3c99 add const to two variables 
Change-Id: I97374ccbf118baa59425346ffc439036a4482bf4
 2017-08-07 23:02:15 +02:00
Pascal Massimino
46efe062b8 Merge "Allow the lossless cruncher to work for alpha." 2017-08-07 21:00:02 +00:00
Vincent Rabaud
8c3f9a4706 Speed-up LZ77. 
No need to look for a bigger maximum reach if we reach the end
of the image.

Change-Id: I56b166f9266f15cdff5aa59a75559972db19858f
 2017-08-07 21:01:27 +02:00
Vincent Rabaud
1aef4c710b Allow the lossless cruncher to work for alpha. 
Change-Id: I7185e75404fae8c739e0536026f4687d25decad7
 2017-08-07 20:58:05 +02:00
Vincent Rabaud
b8821dbd81 Improve the box LZ77 speed. 
For a pixel, we look for the longest match starting in a window around it.
For the following pixel, the previous result can be used and smaller
search window is used.

Change-Id: Ice16f9a7c8754099d068380848f0d77de3f756ac
 2017-08-06 20:15:20 +02:00
James Zern
7beed2807b add missing ()s to macro parameters 
BUG=webp:355

Change-Id: I616c6d3540d6551edd1b1cfdb5bffcf0a044c90f
 2017-08-04 17:02:53 -07:00
James Zern
6473d20b3e Merge "fix Android standalone toolchain build" 2017-08-04 18:25:21 +00:00
James Zern
0c83a8bc69 Merge "yuv: harmonize suffix naming" 2017-08-02 06:35:36 +00:00
James Zern
c6d1db4b36 fix Android standalone toolchain build 
add a check for cpu-features.h and rework some of the ifdef's around
android + neon. for android builds with cpu-features enabled the
*_neon.c files will still need to be flagged correctly (with e.g.,
.c.neon in Android.mk) to properly build them.

BUG=webp:353

Change-Id: I905ce305af0a204e560b915d8665093a3edaceb9
 2017-08-01 22:59:03 -07:00
skal
663a6d9d2e unify the ALTERNATE_CODE flag usage 
Pattern is now:
 #if !defined(FLAG)
 #define FLAG 0   // ALTERNATE_CODE
 #endif
...
 #if (FLAG == 1)
 ...
 #else
  ...
 #endif    // FLAG
...

Removed some unused code / flags:
  WEBP_YUV_USE_TABLE, WEBP_REFERENCE_IMPLEMENTATION,
  experimental code,  VP8YUVInit(), ...

BUG=webp:355

Change-Id: I98deb9189446a4cfd665c13ea8aa1ce6a308c63f
 2017-08-01 20:49:29 -07:00
skal
73ea9f2702 yuv: harmonize suffix naming 
BUG=webp:355

Change-Id: I403c4b3cdfc55b3b1648f98a1d189326a3e660a3
 2017-08-01 20:40:00 -07:00
skal
c4568b47fd Rescaler: harmonize the suffix naming 
BUG=webp:355

Change-Id: I7720502c62f96c780793d3d881eac7b3afae1418
 2017-08-01 23:49:44 +00:00
Pascal Massimino
6cb13b0532 Merge "alpha_processing: harmonize the naming suffixes to be _C()" 2017-08-01 03:38:03 +00:00
James Zern
83a3e69a20 Merge "simplify WEBP_EXTERN macro" 2017-08-01 03:29:12 +00:00
Pascal Massimino
7295fde2e6 Merge "filters: harmonize the suffixes naming to _SSE2(), _C(), etc." 2017-08-01 01:55:48 +00:00
James Zern
8e42ba4c80 simplify WEBP_EXTERN macro 
including the type in the macro doesn't bring much benefit to ordering,
current platforms work with a prefix, this would be insufficient if the
attribute needed to follow the function prototype. this form makes it
easier to override on the command line.

BUG=webp:355

Change-Id: Iba41ec0bb319403054be0e899c4cc472dd932fd9
 2017-07-31 18:27:52 -07:00
skal
331ab34bcd cost*.c: harmonize the suffix namings 
BUG=webp:355

Change-Id: Ic2e60eaab71cdffe1ebf93fc36aaa3eb25bbf08d
 2017-07-31 17:18:32 -07:00
skal
b161f670f8 filters: harmonize the suffixes naming to _SSE2(), _C(), etc. 
BUG=webp:355

Change-Id: I28f464eb13444c3046332cdda3c547f81700ecf4
 2017-08-01 00:09:05 +00:00
skal
dec5e4d330 alpha_processing: harmonize the naming suffixes to be _C() 
BUG=webp:355

Change-Id: Iae8221cd34957764ead21aa46abfc320e5514a4b
 2017-07-31 23:34:24 +00:00
James Zern
92982609bc dsp.h: fix -Wundef w/__mips_dsp_rev 
Change-Id: I552a543c7b039774041b43ace75b0cbea566b119
 2017-07-11 16:12:32 -07:00
James Zern
88c73d8a7a backward_references_enc.h: fix WINDOW_SIZE_BITS check 
this check was relocated in:
b903b80c Split cost-based backward references in its own file.

quiets -Wundef

Change-Id: I7f7a4773fb8cc77ca9f671b11f50d5db2275d415
 2017-07-11 15:36:14 -07:00
James Zern
4ea49f6b82 rescaler_sse2.c: fix WEBP_RESCALER_FIX -> _RFIX typo 
quiets -Wundef

Change-Id: I8f1facf401b6f1ab393005c93086ac3e2ae354d5
 2017-07-11 15:35:27 -07:00
James Zern
b34a9db1a1 cosmetics,dec_sse2: remove some redundant comments 
Change-Id: I5a59d6dde9b6638b318f36d51d0d53870a3de273
 2017-07-06 23:19:18 -07:00
James Zern
66ad84f0f9 Merge "muxread: remove unreachable code" 2017-07-05 23:48:45 +00:00
Pascal Massimino
50ec3ab790 muxread: remove unreachable code 
IDX_UNKNOWN chunks are handled separately in WebPMuxGetChunk()

Change-Id: Iaa0d3a1cd1080264c27671637551f52f71d73b07
 2017-07-05 15:47:50 -07:00
hui su
7d67a1646d Lossy encoding: smoothen transparent areas to improve compression 
If "exact" is false, we can modify the luma samples in fully transparent
areas to facilitate lossy compression. Experiments on some PNG images
show compression improvement of more than 20%.

Change-Id: I1a728cfa920a6652bc1f600d87c01f7f648c4942
 2017-07-05 10:03:01 -07:00
James Zern
e50650c77f Merge "fix signature for DISABLE_TOKEN_BUFFER compilation" 2017-07-02 07:33:52 +00:00
Pascal Massimino
671d2567d4 fix signature for DISABLE_TOKEN_BUFFER compilation 
Change-Id: Idb7aa2503c7870ef3b15a23325832428d47ae7c6
 2017-07-01 14:46:28 -07:00
Vincent Rabaud
8acb4942f7 Remove the argb* files. 
Half of the functionality was duplicated.
The rest is about the alpha channel handling so we
might as well put it in the appropriate file.

Change-Id: I8d5ef0afce82cc4842ab7132fd97995c42e6140a
 2017-06-25 14:44:33 +02:00
Vincent Rabaud
7ca0df1363 Have the SSE2 version of PackARGB use common code. 
The common code actually got sped-up by 25% by using the code
from PackARGB.

Change-Id: I94be6ccff2bfe02fff13c8e2698669e6a0d8fc74
 2017-06-20 17:41:14 +02:00
Pascal Massimino
7b250459d6 Merge "Re-use the transformed image when trying several LZ77 in lossless." 2017-06-20 11:53:01 +00:00
Vincent Rabaud
e132072f0b Re-use the transformed image when trying several LZ77 in lossless. 
Change-Id: If879b960131ba26859f8e4719a4c74cec1e0aaa8
 2017-06-19 17:30:01 +02:00
Vincent Rabaud
5d7a50efee Get code to compile in C++. 
Change-Id: I2f56e6b71e33ffecdba9e4fa9ef8f891c88f850f
 2017-06-19 17:12:29 +02:00
Pascal Massimino
f1d5a397db multithread cruncher: only copy stats when picture->stats != NULL 
BUG=webp:336

Change-Id: I6dfbbdcf61a6cb455f6cbf3dcd7f4c46578f42aa
 2017-06-14 21:49:13 +02:00
Vincent Rabaud
f8c2ac15af Multi-thread the lossless cruncher. 
BUG=webp:336

Change-Id: I8e861d6a61d51a5cdc4bbd00cd4f17d4ff006d2f
 2017-06-14 16:50:36 +02:00
Vincent Rabaud
a88c6522f6 Merge "Integrate a new LZ77 looking for matches in the neighborhood of a pixel only." 2017-06-13 13:15:48 +00:00
Vincent Rabaud
8f6df1d0b9 Unroll Predictors 10, 11 and 12. 
We see the following speed-ups:
10 -> 13%
11 -> 13%
12 -> 13%

Change-Id: I4734fd388d0f4e508884d0b123976bf2cbe69d2f
 2017-06-08 20:37:47 +02:00
Vincent Rabaud
355c3d1bc7 Integrate a new LZ77 looking for matches in the neighborhood of a pixel only. 
Change-Id: Ie2bbfee0a8d154b58f4a3068f3f634b7dad4c12d
 2017-06-08 15:19:40 +02:00
Vincent Rabaud
a1779a017b Refactor LZ77 handling in preparation for a new method. 
Change-Id: If305c328c8f508bd778d1af108e4eb979fbd2eca
 2017-06-07 16:43:04 +02:00
Vincent Rabaud
f209a5481e Use the plane code and not the distance when computing statistics. 
As backward references use the plane code when checking the cost
of a distance, statistics used to compute the cost should use it too.
This provides a small compression improvement at no speed cost.

Change-Id: Icade150929ee39ef6dc0d8b1fc85973086ecf41d
 2017-06-01 17:08:43 +02:00
Vincent Rabaud
b903b80c30 Split cost-based backward references in its own file. 
Change-Id: I4d8281e69b0e41f7c90337e5be70a6c65b044086
 2017-06-01 16:22:31 +02:00
Vincent Rabaud
498cad34be Cosmetic changes in backward reference. 
Change-Id: Ieb3dd65a647c034f67cf029e7b03f843b4650b0f
 2017-06-01 14:20:16 +02:00
Vincent Rabaud
e4eb458741 lossless, VP8LTransformColor_C: make sure no overflow happens with colors. 
Change-Id: Iec0d07cf1188ba96391cdb1b62131fc1469dfac6
 2017-05-24 11:34:40 +02:00
Vincent Rabaud
7caef29b86 Fix typo that creeped in. 
Change-Id: I600725721d9df80d6deddc65e00663649a47c941
 2017-05-23 17:10:34 +02:00
Vincent Rabaud
39e19f927c Merge "near lossless: fix unsigned int overflow warnings." 2017-05-23 14:47:47 +00:00
Vincent Rabaud
9bbc0891c6 near lossless: fix unsigned int overflow warnings. 
Change-Id: Ic1111a66761b5821cbbea1c91b038b2327dd20b5
 2017-05-23 13:43:08 +02:00
James Zern
b588729740 cosmetics,FindClosestDiscretized: use uint in mask creation 
Change-Id: Ib1edd74be1c051c10cfe2defadbea48cabe15135
 2017-05-22 08:21:44 -07:00
James Zern
f1784aee04 near_lossless,FindClosestDiscretized: use unsigned ops 
quiets undefined sanitizer warnings of the form:
left shift of 128 by 24 places cannot be represented in type 'int'

Change-Id: I8a389f2ac9238513517180f302f759425eeb7262
 2017-05-22 03:11:03 -07:00
hui su
972104b34b webpmux: tolerate false positive Alpha flag 
Change-Id: I390aebdda31f5320e83b7d7012735947a234650b
 2017-05-19 11:26:37 -07:00
Vincent Rabaud
defc98d72c Doc: clarify the role of quality in WebPConfig. 
Change-Id: I13706847f6263b9bb91eaf3c9284dd2d42ea7a85
 2017-05-15 18:01:35 +02:00