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Author SHA1 Message Date
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
5199eab516 Merge "add uncompressed TIFF output support" 2013-05-13 08:59:48 -07:00
Pascal Massimino
a3aede9739 add uncompressed TIFF output support 
new option: 'dwebp -tiff ...'
This is a very simple uncompressed-tiff writing method.

Change-Id: Ie2182c8498bce570de3cde363abe1099e18596cb
 2013-05-11 01:46:24 -07:00
pascal massimino
f975b67f66 Merge "gif2webp: Fix signed/unsigned comparison mismatch" 2013-05-11 00:53:20 -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
043e1ae4bd gif2webp: Fix signed/unsigned comparison mismatch 
Change-Id: I355f0614424276550db71b24e5bb1948e5c6894c
 2013-05-10 13:37:20 -07:00
Urvang Joshi
5818cff770 mux.h: A comment fix + some consistency fixes 
Change-Id: I0aee1090322bac3ae3dabf9a48661cbb6de3ca52
 2013-05-10 13:35:16 -07:00
pascal massimino
1153f888c9 Merge "swig: ifdef some Java specific code" 2013-05-10 02:00:02 -07:00
James Zern
3eeedae1bc Makefile.vc: fix libwebpdemux dll variable typo 
Fixes issue #149

Patch by: Jason Stevens  (cypher497 at gmail dot com)

Change-Id: I65cceaad37d22b96e5e92cb78f859fc0b7c38b67
 2013-05-09 23:49:39 -07:00
James Zern
f980faf417 swig: add python (decode) support 
similar to Java, simple interface only

Change-Id: I8a3d344e5d89f73627e4e0cb2067512260d46fdd
 2013-05-09 23:29:35 -07:00
James Zern
7f5f42bb36 swig: cosmetics 
normalize formatting
- update decode prototypes
- match project function name style

Change-Id: Ib481b5602171b72dbb1a5d462e6d5166e9b8566e
 2013-05-08 18:00:30 -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
James Zern
c7247c4c68 swig: ifdef some Java specific code 
no implementation change

Change-Id: I077c707e1f6293188e6fa11ba24757009a709f77
 2013-05-08 17:13:40 -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
James Zern
bba4c2b2a6 configure: add warning related flags 
adds TEST_AND_ADD_CFLAGS function
uses AM_CFLAGS to allow CFLAGS override

Change-Id: I9352aec6e5d905a41d832bf5ad0c8dcd154f7e97
 2013-05-07 12:48:12 -07:00
Urvang Joshi
fffefd18c3 Add GetCanvasSize() method to mux 
Change-Id: If910f5024f4c301a92e6c2e8ee9c315a103c5df7
 2013-05-07 12:47:48 -07:00
pascal massimino
732da8d0f0 Merge "configure: add GLUT detection; build vwebp" 2013-05-07 12:15:50 -07:00
James Zern
0e513f7ae3 configure: add GLUT detection; build vwebp 
Change-Id: I7f0964db2d04c22ff9ec274e8cd1cbed7379a165
 2013-05-07 11:42:15 -07:00
pascal massimino
55d1c150ea Merge "Alpha decoding: significantly reduce memory usage" 2013-05-07 09:14:56 -07:00
pascal massimino
13d99fb58b Merge "configure: add --enable-everything" 2013-05-07 08:50:57 -07:00
pascal massimino
2bf698fe49 Merge "configure.ac: add some helper macros" 2013-05-07 08:49:21 -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
James Zern
3cafcc9a8d configure: add --enable-everything 
Change-Id: Ie1b3abd42459de7f789fe985759c465c2a196727
 2013-05-01 18:25:00 -07:00
James Zern
4ef1447792 configure.ac: add some helper macros 
library check related variable maintenance -> *_INCLUDES / *_LIBS

CLEAR_LIBVARS / LIBCHECK_PROLOGUE / LIBCHECK_EPILOGUE

Change-Id: I72e292dc1f69b02f69a26639308f247db0471e2b
 2013-05-01 18:24:49 -07:00
Pascal Massimino
a4e1cdbbe8 Remove the gcc compilation comments 
They went out of sync some time ago, and are
no longer really required since we have them
buildable from makefile.unix

Change-Id: Ica2dcf5c55f44365598f832f55204d123d7aa601
 2013-05-01 15:01:37 -07:00
Urvang Joshi
6393fe4b7c Cosmetic fixes 
Change-Id: I7d5a337077ba1d0406769190fef9b47146ed8b24
 2013-04-26 15:55:42 -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
b26e5ad540 gif2webp: Fix ICC and XMP support 
Change-Id: Ib5aafef388bd191610e4cc2f8180f35cd454f1d3
 2013-04-18 14:19:25 -07:00
Christian Duvivier
46089b207d Add missing name to AUTHORS 
Change-Id: I00092e5bb676b48abc05b94080b589b48c911c82
 2013-04-18 11:29:36 +02:00
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