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Author SHA1 Message Date
James Zern
3d97bb7514 update ChangeLog 
Change-Id: I05b9ac2cf8fdd26e3f2e68780dca3e613bc2f732
 2016-07-06 18:00:16 -07:00
Pascal Massimino
deb54d915a Clarify the expected 'config' lifespan in WebPIDecode() 
Change-Id: I08c880adc34d651a63fa2d07cfb07b1468a6df1b
 2016-07-06 17:17:15 -07:00
Parag Salasakar
435308e029 Add MSA optimized encoder transform functions 
We add the following MSA optimized encoder transform functions:
- ITransform
- FTransform
- FTransformWHT

Change-Id: Ia6b17556aba5aff2d7a88208905fb45293d080a8
 2016-07-05 14:35:47 +00:00
Parag Salasakar
dce64bfa1b Add MSA optimized alpha filter functions 
We add the following MSA optimized alpha filter functions:
- HorizontalFilter
- VerticalFilter
- GradientFilter

Change-Id: I71e2e04050e569b8c0bf086fadf210ee16d50924
 2016-07-01 19:58:25 +00:00
Parag Salasakar
429120d0af Add MSA optimized color transform functions 
We add the following MSA optimized color transform functions:
- AddGreenToBlueAndRed
- TransformColorInverse

Change-Id: Iceab3813905955aa8b811253df9188512fc7de3f
 2016-06-28 20:36:21 +05:30
James Zern
c7e2d245d1 update ChangeLog 
Change-Id: Icaaaeda53ecf24ecc9a2e09da78423235fc8133b
 2016-06-27 16:49:43 -07:00
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