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1388 Commits

Author SHA1 Message Date
skal
23d28e216d add doc precision for WebPPictureCopy() and WebPPictureView() 
output picture object is overwritten, not free'd or destroyed.

Change-Id: Ibb47ab444063e7ad90ff3d296260807ffe7ddbf9
 2013-05-31 10:41:19 +02:00
skal
af358e68ed Merge "remove datatype qualifier for vmnv" 2013-05-23 06:12:06 -07:00
skal
3fe91635df remove datatype qualifier for vmnv 
this fix is for clang (LLVM v4.2). gcc was fine.

Change-Id: Id4076cda84813f6f9548a01775b094cff22b4be9
 2013-05-23 13:52:24 +02:00
skal
91413be2f9 reduce memory for VP8MB and remove bitfields use 
~1% faster on ARMv7

Change-Id: I3e3524e0c25ebd31a04269aae0d304932f1a781a
 2013-05-21 23:20:04 +02:00
Vikas Arora
7413394e7f Fix the memory leak in ApplyFilters. 
Change-Id: Iba1b1adf3088ea9c43e4f602a93e77450f6c6170
 2013-05-21 14:00:26 -07:00
skal
2053c2cff2 simplify the alpha-filter testing loop 
Change-Id: Iacebae749c37edc87a3c94c76cd589a2565ee642
 2013-05-21 10:29:27 +02:00
skal
0d25876bad use uint8_t for inv_palette[] 
Change-Id: I5005ce68d89bfb657d46ad8acc4368c29fa0c4fd
 2013-05-18 17:13:58 +02:00
skal
afa3450c11 Fix the bug in ApplyPalette. 
The auto-infer logic of detecting the 'Alpha' use case
(via check '(palette[i] & 0x00ff00ffu) != 0' is failing
for this corner case image with all black pixels (rgb = 0)
and different Alpha values.

-> switch generic use-LUT detection

Change-Id: I982a8b28c8bcc43e3dc68ac358f978a4bcc14c36
 2013-05-18 17:03:18 +02:00
pascal massimino
2d6ac422cf Merge "webp/lossless: fix big endian BGRA output" 2013-05-17 00:36:15 -07:00
James Zern
2ca83968ae webp/lossless: fix big endian BGRA output 
Change-Id: I3d4b3d21f561cb526dbe7697a31ea847d3e8b2c1
 2013-05-17 00:32:01 -07:00
Vikas Arora
742110ccce Speed up ApplyPalette for ARGB pixels. 
Added 1 pixel cache for palette colors for faster lookup.
This will speedup images that require ApplyPalette by 6.5% for lossless
compression.

Change-Id: Id0c5174d797ffabdb09905c2ba76e60601b686f8
 2013-05-16 15:44:21 -07:00
skal
2451e47dca misc code cleanup 
* remove dec->skip_
* fix some naming

(no speed diff observed)

Change-Id: I12545ef79d29dd6f893c344d8fb171b0a8c7cc46
 2013-05-15 20:03:15 +02:00
pascal massimino
d5f9b8f383 Merge "libwebp: fix vp8 encoder mem alloc offsetting" 2013-05-15 00:41:14 -07:00
James Zern
d8edd83551 libwebp: fix vp8 encoder mem alloc offsetting 
'mem' was being offset once by DO_ALIGN() then shifted 'nz_size' which
would end up accounting for more than ALIGN_CST and exceed the allocation.

broken since:
  9bf3129 align VP8Encoder::nz_ allocation

Change-Id: I04a4e0bbf80d909253ce057f8550ed98e0cf1054
 2013-05-15 00:31:23 -07:00
skal
8983b83ee1 remove use of bit-fields in VP8FInfo 
(in favor of just plain uint8_t's)

Change-Id: I6187587a4d8a9f5c304a132d98ec42ce24fd244a
 2013-05-15 09:21:30 +02:00
skal
87a4fca25f remove some warnings: 
* "declaration of ‘index’ shadows a global declaration [-Wshadow]"
* "signed and unsigned type in conditional expression [-Wsign-compare]"

Change-Id: I891182d919b18b6c84048486e0385027bd93b57d
 2013-05-14 22:28:32 +02:00
Pascal Massimino
ba8f74e229 Merge "fix for big-endian" 2013-05-14 01:58:06 -07:00
pascal massimino
a65067fa77 Merge "Further reduce memory to decode lossy+alpha images" 2013-05-14 01:56:54 -07:00
Urvang Joshi
64c844863a Further reduce memory to decode lossy+alpha images 
Earlier such images were using roughly 9 * width * height bytes for
decoding. Now, they take 6 * width * height memory.

Change-Id: Ie4a681ca5074d96d64f30b2597fafdca648dd8f7
 2013-05-13 16:24:49 -07:00
Urvang Joshi
332130b9b3 Mux: make a few methods static 
Change-Id: I8a8b0b403116c89933e84c93502a8230026f819e
 2013-05-13 13:26:33 -07:00
Pascal Massimino
4437061735 fix for big-endian 
(Issue #150: https://code.google.com/p/webp/issues/detail?id=150)

Change-Id: Iad46d375a8c5eabae37cde8f55b3e7448601f264
 2013-05-13 10:19:29 -07:00
pascal massimino
5fbc734b90 Merge "GetFeatures: Detect invalid VP8X/VP8/VP8L data" 2013-05-11 00:51:39 -07:00
pascal massimino
d5060c873c Merge "mux.h: A comment fix + some consistency fixes" 2013-05-11 00:41:35 -07:00
Urvang Joshi
352d0dee99 GetFeatures: Detect invalid VP8X/VP8/VP8L data 
This facilitates early error detection during decode/render.
Also, related refactoring.

Change-Id: Ia6c7cd91dec202a2a68dae2118f5981cf1eaa83d
 2013-05-10 14:27:11 -07:00
Urvang Joshi
3ef79fefec Cosmetic: "width * height" 
Change-Id: I567c0d95355160a9f6721f949b38e2b8b6270b7a
 2013-05-10 13:39:58 -07:00
Urvang Joshi
5818cff770 mux.h: A comment fix + some consistency fixes 
Change-Id: I0aee1090322bac3ae3dabf9a48661cbb6de3ca52
 2013-05-10 13:35:16 -07:00
Vikas Arora
8eae188a62 WebP-Lossless encoding improvements. 
Lossy (with Alpha) image compression gets 2.3X speedup.
Compressing lossless images is 20%-40% faster now.

Change-Id: I41f0225838b48ae5c60b1effd1b0de72fecb3ae6
 2013-05-08 17:22:11 -07:00
pascal massimino
4cb234d5b5 Merge "Mux: make ValidateForSingleImage() method static" 2013-05-08 01:54:28 -07:00
pascal massimino
ed6f53086b Merge "Add GetCanvasSize() method to mux" 2013-05-08 01:53:22 -07:00
Urvang Joshi
1d530c9a7e Mux: make ValidateForSingleImage() method static 
Change-Id: I96ac5e3be26b8e8ecd9f055501a5feb7710bc324
 2013-05-07 12:57:51 -07:00
Urvang Joshi
fffefd18c3 Add GetCanvasSize() method to mux 
Change-Id: If910f5024f4c301a92e6c2e8ee9c315a103c5df7
 2013-05-07 12:47:48 -07:00
Urvang Joshi
edccd19436 Alpha decoding: significantly reduce memory usage 
Simply get rid of an intermediate buffer of size width x height, by
using the fact that stride == width in this case.

Change-Id: I92376a2561a3beb6e723e8bcf7340c7f348e02c2
 2013-05-02 18:24:46 -07:00
skal
9c4ce971a8 Simplify forward-WHT + SSE2 version 
no precision loss observed
speed is not really faster (0.5% at max), as forward-WHT isn't called often.

also: replaced a "int << 3" (undefined by C-spec) by a "int * 8"
( supersedes https://gerrit.chromium.org/gerrit/#/c/48739/ )

Change-Id: I2d980ec2f20f4ff6be5636105ff4f1c70ffde401
 2013-04-26 08:57:18 +02:00
skal
878b9da5bf fix missed optim 
it's not often the case, but could happen, that chroma has non-zero
coeff but luma hasn't. In such case, we should skip luma right away

Change-Id: I9515573ffaec8aad8b069d2c02ffbda4a6eff97c
 2013-04-25 22:46:12 +02:00
Urvang Joshi
00046171a5 VP8GetInfo(): Check for zero width or height. 
Change-Id: I0bf40621ed0776e1a185ad8abab5a914a3d29d69
 2013-04-25 12:08:40 -07:00
James Zern
9bf312938f align VP8Encoder::nz_ allocation 
prevents unaligned uint32_t load/store

Change-Id: I3f5e1b434a7452f618009d5e4bbe4f3260e3e321
 2013-04-25 02:55:39 -07:00
skal
5da165cfad fix CheckMode() signature 
should have been 'const VP8Decoder* const dec', but actually
we just need to pass mb_x_ and mb_y_

Change-Id: I21ca0d67ab33302d6eaa45698d53ed6c2de76981
 2013-04-24 14:33:44 +02:00
pascal massimino
0ece07dcb1 Merge "explicitly pad bitfields to 32-bits" 2013-04-22 13:13:29 -07:00
James Zern
9dbc9d1909 explicitly pad bitfields to 32-bits 
suggested by fbarchard@chromium; may affect alignment in some cases

Change-Id: I63552eb1a0f9e81754d30ce6e9b1cfe5748bdbc9
 2013-04-22 13:00:28 -07:00
pascal massimino
5369a80fd4 Merge "prevent signed int overflow in left shift ops" 2013-04-19 00:13:16 -07:00
pascal massimino
70e3971260 Merge "cosmetics: remove unnecessary ';'s" 2013-04-19 00:11:10 -07:00
pascal massimino
d3136ce27d Merge "don't forward declare enums" 2013-04-19 00:10:39 -07:00
Urvang Joshi
94328d6457 Demux: Fix a potential memleak 
Change-Id: Ic0dcac010da088b791c130be4abacdd8c31e92cf
 2013-04-16 14:13:45 -07:00
James Zern
96e948d7b0 don't forward declare enums 
doing so is not part of ISO C; removes some pedantic warnings

Change-Id: I739ad8c5cacc133e2546e9f45c0db9d92fb93d7e
 2013-04-13 11:08:42 -07:00
James Zern
f4f90880a8 prevent signed int overflow in left shift ops 
force unsigned when shifting by 24.

Change-Id: Ie229d252e2e4078107cd705b09397e686a321ffd
 2013-04-13 10:57:31 -07:00
James Zern
0261545e0b cosmetics: remove unnecessary ';'s 
Change-Id: I5fefd9a5b2fe3795c2b5d785c30335b85bac0b43
 2013-04-13 10:49:35 -07:00
James Zern
7ebdf110af Merge "Fix few missing comparisons to NULL" 2013-04-13 10:42:51 -07:00
Pascal Massimino
1579989e7b Fix few missing comparisons to NULL 
Change-Id: I0d2ff8e8b507d17e80669b2b59fd5b017af995ed
 2013-04-13 10:36:33 -07:00
Pascal Massimino
ea1b21cfdb Cleaned up VP8GetHeaders() so that it parses only frame header 
Removed a call to WebPParseHeaders() inside VP8GetHeaders(). This was not needed
anyway, as all call flows already call WebPParseHeaders() before calling
VP8GetHeaders().

This avoids duplicate calls to WebPParseHeaders().

Change-Id: Icb2d618bd26c44220d956c17a69c9c45a62d5237
 2013-04-11 11:35:18 -07:00
Pascal Massimino
ff885bfe1f add precision about dynamic output reallocation with IDecoder 
The output surface CAN be changed inbetween calls to
WebPIUpdate() or WebPIAppend(), but with precautions.

Change-Id: I899afbd95738a6a8e0e7000f8daef3e74c99ddd8
 2013-04-09 18:05:11 -07:00