dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2024-11-20 12:28:26 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity
3,568 Commits 34 Branches 64 Tags 14 MiB
b4d576fa9c
Commit Graph

3568 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Pascal Massimino
55b2fede7f normalize the macros' "do {...} while (0)" constructs 
(so we're no longer bitten by the extra ';' problem!)

Change-Id: Icf849c97df9a7af135ba15a7906fc28590d7ce77
 2016-06-27 15:30:05 -07:00
Parag Salasakar
701c772eed Add MSA optimized colorspace conversion functions 
We add the following MSA optimized colorspace conversion functions:
- ConvertBGRAToRGBA
- ConvertBGRAToBGR
- ConvertBGRAToRGB

Change-Id: I76db1c829d593a06d4975d54dbafa385c82b84fb
 2016-06-27 21:19:06 +00:00
Vincent Rabaud
c7eb06f737 Fix corner case in CostManagerInit. 
Change-Id: I91795d05eb78816d6d9a8cadc64d3814650d2aee
 2016-06-27 20:01:44 +02:00
Pascal Massimino
f918cb1013 fix rescaling bug: alpha plane wasn't filled with 0xff 
(in case no alpha was present in the source .webp,
but user requested some)

Change-Id: I9011d38237907c60d6796a86bd2c72166aa80f27
(cherry picked from commit 06a38c7b1c)
 2016-06-27 10:48:31 -07:00
James Zern
ab7937a5c7 gif2webp: normalize the number of .'s in the help message 
Change-Id: I3a2412f391b3244c172ee28819e8e606a9674aa9
 2016-06-24 19:29:43 -07:00
James Zern
3cdec847a5 vwebp: normalize the number of .'s in the help message 
Change-Id: Iadaa5a8f64cd8093eeeaf829ba609bef034d63b5
 2016-06-24 19:29:43 -07:00
James Zern
bdf6241e70 cwebp: normalize the number of .'s in the help message 
Change-Id: I0208c01a671bd822ee707c6d8ead3d5348b3e2c6
 2016-06-24 19:29:43 -07:00
Pascal Massimino
06a38c7b1c fix rescaling bug: alpha plane wasn't filled with 0xff 
(in case no alpha was present in the source .webp,
but user requested some)

Change-Id: I9011d38237907c60d6796a86bd2c72166aa80f27
 2016-06-24 17:15:31 +02:00
Vincent Rabaud
319e37be13 Improve lossless compression. 
This is essentially a revert of a3611513d2
and cfbcc5ece0.
Here is what happened: there was a corruption bug that eventually
got fixed by 0174d18d8b.
But before finding the root, a3611513d2
and cfbcc5ece0 hid the bug
by not imposing length of 1 when it was actually 2 or 3 (which does help
compression as a litteral is more efficient than an offset and a length
of size 2 or 3).

Change-Id: I6f18fc1f583a51ac9d8aab2508458264047cd493
 2016-06-24 16:11:25 +02:00
Parag Salasakar
6a19793777 Add MSA optimized intra pred chroma functions 
We add the following MSA optimized intra pred chroma functions:
- DC8uv
- TM8uv
- VE8uv
- HE8uv
- DC8uvNoTop
- DC8uvNoLeft
- DC8uvNoTopLeft

Change-Id: I48ad2409f334371acd38f4a70626ebcf2e10f4fe
 2016-06-24 08:45:29 +00:00
Pascal Massimino
447adbce1e 'our bug tracker' -> 'the bug tracker' 
(less exclusive wording)
(also a good opportunity to update the date)

Change-Id: Ife221f3f8ac3c38db93ec91954123edc3d8a4a6b
 2016-06-23 16:06:12 -07:00
Pascal Massimino
97b9e64459 normalize the number of .'s in the help message 
Change-Id: I2dbb36cbdc3cb93364d9e1dd6da10d3a5f9470af
 2016-06-23 16:06:09 -07:00
Parag Salasakar
293d786f31 Added MSA optimized intra prediction 16x16 functions 
1. DC16
2. TM16
3. VE16
4. HE16
5. DC16NoTop
6. DC16NoLeft
7. DC16NoTopLeft

Change-Id: I53c57c27cee40973b7ee40a7b7a7fbf0df812d1a
 2016-06-23 13:09:02 +00:00
Parag Salasakar
0afa0ce2ff Added MSA optimized intra prediction 4x4 functions 
1. DC4
2. TM4
3. VE4
4. RD4
5. LD4

Change-Id: Ib73131f9174aac13443160d2c2add1af90a3bd45
 2016-06-23 10:49:34 +00:00
Parag Salasakar
a6621bacf3 Added MSA optimized simple edge filtering functions 
1. SimpleVFilter16
2. SimpleHFilter16
3. SimpleVFilter16i
4. SimpleHFilter16i

Change-Id: Ib330e01960623aeeed1bdb5bc8155cc6657556f9
 2016-06-23 06:52:01 +00:00
James Zern
bb50bf42b0 pngdec,ReadFunc: throw an error on invalid read 
convert the assert() to an error check to avoid crashing when reading
malformed files.

BUG=webp:302

Change-Id: I25eed9cab5c0a439bd3411beacc83f3a27af2bbf
 2016-06-22 23:09:30 -07:00
James Zern
38063af131 decode.h,WebPGetInfo: normalize function comment 
use true/false to match the documentation of other functions.

Change-Id: If059f8fb6d771a165e4682495fd8881b3dc0670f
 2016-06-22 15:20:47 -07:00
Parag Salasakar
1ebf193c2c Added MSA optimized chroma edge filtering functions 
1. VFilter8
2. HFilter8
3. VFilter8i
4. HFilter8i

Change-Id: Iea5f0107178809dc31f3d9ba817e2474bd73fc0a
 2016-06-22 13:51:29 +00:00
Parag Salasakar
9ad2352d0d Merge "Added MSA optimized edge filtering functions" 2016-06-22 10:45:15 +00:00
Parag Salasakar
607510967f Added MSA optimized edge filtering functions 
1. VFilter16
2. HFilter16
3. VFilter16i
4. HFilter16i


Change-Id: I6a302c5ab40329c9e9bd1501a611d7267a983d81
 2016-06-22 09:35:49 +00:00
Vincent Rabaud
9e8e1b7b2a Inline GetResidual for speed. 
Change-Id: Ib4228e87dc448866229c0795ca68dabe777ef31c
 2016-06-21 16:04:53 +02:00
Vincent Rabaud
7d58d1b7b9 Speed-up uniform-region processing. 
Change-Id: I9a88d0ac97c31d19323c9505ebe21f375d2e96b8
 2016-06-21 15:45:46 +02:00
Pascal Massimino
8ec7032bc2 simplify HistogramCombineEntropyBin() 
We only perform a single pass, and swap the final histograms
into the beginning of the array as we go. Therefore, they are
already at the correct place at the end of the pass.
-> HistogramCompactBins() is removed, we just truncate the array.

output is bitwise the same.

Change-Id: I9508c96dda0f8903c927a71b06af4e6490c3249c
 2016-06-21 14:13:36 +02:00
Pascal Massimino
23e29cb1e3 Merge "Fix a boundary case in BackwardReferencesHashChainDistanceOnly." into 0.5.1 2016-06-20 16:06:39 +00:00
Pascal Massimino
472a049b4e remove bin_map[] allocation altogether 
... and just re-use histogram_symbols[] instead!
It's guaranteed to work.

Change-Id: Ie3b0cd5781171ded20058e8bc143fce2f69b4c68
 2016-06-20 11:19:25 +02:00
Pascal Massimino
0bb23b2cf7 free -> WebPSafeFree() 
avoids unbalanced memory track at the end (w/ PRINT_MEM_INFO flag on)

Change-Id: I70da087f079198bcaacd0c81593f104058dcac69
 2016-06-17 17:49:07 +02:00
Pascal Massimino
a977b4b513 Merge "rewrite the bin_map clustering to use less memory" 2016-06-17 08:25:35 +00:00
Pascal Massimino
3591ba6684 rewrite the bin_map clustering to use less memory 
output should bit-write the same as before, in both
low_effort and non low_effort modes.

if anything, speed is a tad faster, probably because of the
reduced memory traffic.

Change-Id: Iaa2ddcfda2aaffefe7e5b7bc89216373d1ddb194
 2016-06-17 09:52:36 +02:00
James Zern
e6ac450cbd utils.[hc]: s/MAX_COLOR_COUNT/MAX_PALETTE_SIZE/ 
MAX_COLOR_COUNT was just a synonym and its use in the header was a bit
strange given the visibility of that define.

Change-Id: I536964ddc14a0c48263191b6afb80695b5a038e6
 2016-06-16 23:14:30 -07:00
Pascal Massimino
e7b917726f Merge "DecodeImageData(): change the incorrect assert" into 0.5.1 2016-06-17 06:07:44 +00:00
Pascal Massimino
2abfa54f95 DecodeImageData(): change the incorrect assert 
this function can be called not to decode pixels, but simply
to finish processing (through process_func()) the already decoded
pixels.

Change-Id: I80485e92e3c47f0aa3389476dcb82745a243fc4a
 2016-06-16 22:24:30 -07:00
James Zern
5a48fcd8a1 Merge "configure: test for -Wfloat-conversion" 2016-06-16 17:57:58 +00:00
Vincent Rabaud
0174d18d8b Fix a boundary case in BackwardReferencesHashChainDistanceOnly. 
The optimization for (len != MIN_LENGTH) actually only holds for
(len > MIN_LENGTH) but (len < MIN_LENGTH) can now happen as len can
be changed in the loop before.

Change-Id: I3f9f91a540206c80385c5fba96c3d64ab9536752
 2016-06-16 19:22:28 +02:00
Parag Salasakar
6a9c262aa8 Merge "Added MSA optimized transform functions" 2016-06-16 10:53:43 +00:00
Vincent Rabaud
cfbcc5ece0 Make sure to consider small distances in LZ77. 
This could corrupt certain images since commit
a3611513d2

Change-Id: Ifbe43abaafe8efb27c62af18039fea5a9dc4e062
 2016-06-16 09:14:11 +00:00
Parag Salasakar
5e60c42a76 Added MSA optimized transform functions 
1. TransformWHT
2. TransformTwo
3. TransformDC
4. TransformAC3

Change-Id: Ia3624cb4aed215bcaffce542b28794e643207039
 2016-06-16 09:04:27 +00:00
James Zern
3dc28d7643 configure: test for -Wfloat-conversion 
Change-Id: Ib7d0372dc43994d66228f7dd3ce4dc3b80a5482d
 2016-06-15 23:54:10 -07:00
Pascal Massimino
f2a0946a7a add some asserts to delimit the perimeter of CostManager's operation 
a small protection in a fairly complex code.

Change-Id: I920e10e1fc1c35da2cf486349417048d516ff2b9
 2016-06-15 20:55:32 +02:00
Pascal Massimino
9a583c66f9 fix invalid-write bug for alpha-decoding 
On the non-fast path (use_8b_decode_=0) for decoding the alpha-mask,
we could end up requesting ApplyInverseTransform() with more rows
to process than NUM_ARGB_CACHE_ROWS. This could only happen on the
very last bottom rows of the image.

* ProcessRows() doesn't need to be fixed, since we never request more
  than NUM_ARGB_CACHE_ROWS rows. Added an assert for that.

* the use_8b_decode_=1 case doesn't use argb_cache_, but rather does
  the palette-decoding call directly. So, no problem here too.

Only the generic (and rather rare) case of calling ExtractAlphaRows()
was affected.

Change-Id: I58e28d590dcc08c24d237429b79614abcef1db7c
 2016-06-15 16:46:19 +02:00
James Zern
f66512db94 make gradlew executable 
Change-Id: If3456966b193ff6710463364917522378ebeeee3
 2016-06-14 23:42:41 -07:00
James Zern
6fda58f137 backward_references: quiet double->int warning 
since:
059aab4 Fix a compression regression for images with long uniform
regions.

Change-Id: I1783a74220961e8bc3bb42696e3412fe4bfc4ddb
 2016-06-14 15:27:58 -07:00
Pascal Massimino
a48cc9d201 Merge "Fix a compression regression for images with long uniform regions." into 0.5.1 2016-06-14 21:26:06 +00:00
Pascal Massimino
cc2720c1d5 Merge "Revert an LZ77 boundary constant." into 0.5.1 2016-06-14 21:25:08 +00:00
Vincent Rabaud
059aab4fa1 Fix a compression regression for images with long uniform regions. 
Change-Id: Id87a4ac2a22daaa71e8f3132e69703b9b3ddd752
 2016-06-14 21:51:10 +02:00
Vincent Rabaud
b0c7e49e58 Check more backward matches with higher quality. 
Change-Id: I3f0887b0b9b7f0e69758f51783807e1583b74be2
 2016-06-14 21:50:03 +02:00
Vincent Rabaud
a3611513d2 Revert an LZ77 boundary constant. 
This is getting back to the old behavior which is actually better for
compression and speed with the latest patches.

Change-Id: I35884bab02589297c25d6e1e66dc5f13e05f7aa7
 2016-06-14 21:42:45 +02:00
James Zern
8190374c2b README: fix typo 
Change-Id: Id744d5f994bed6522f3be7d6b90e6b78bd8da587
 2016-06-13 22:48:04 -07:00
James Zern
7551db445e update NEWS 
Change-Id: I022f975ed1b2f6d9ccbf4a3f4c4bd2113eafacfd
 2016-06-13 20:06:37 -07:00
James Zern
0fb2269c4d bump version to 0.5.1 
libwebp{,decoder} - 0.5.1
libwebp libtool - 6.1.0
libwebpdecoder libtool - 2.1.0

mux - 0.3.1
libtool - 2.1.0

demux (no changes) - 0.3.0
libtool - 2.0.0

Change-Id: I6f51bfaccf33ff7a1492f3e8f888324d7afc0f4b
 2016-06-13 19:10:21 -07:00
James Zern
f45376101c update AUTHORS & .mailmap 
Change-Id: Ia0e25b9af8dd66f16ca75bd35bcd3e5e41c0bdbd
 2016-06-13 19:01:37 -07:00