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8eae188a62
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Author SHA1 Message Date
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
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
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
b66caee410 dwebp: add support for BMP output 
Supports alpha output too.

Change-Id: I42ea0bf7b6bbb420f0e537d372a3b13fe00528a9
 2013-04-09 18:52:34 -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
James Zern
79241d5a0d Merge "Makefile.vc: have 'all' target build everything" 2013-04-09 14:02:22 -07:00
James Zern
ac1c729bd8 Merge "Makefile.vc: flags cleanup" 2013-04-08 17:21:24 -07:00
James Zern
118a055c3d Merge "Makefile.vc: drop /FD flag" 2013-04-08 17:20:32 -07:00
James Zern
ecad0109d5 Merge "update gitignore" 2013-04-08 17:20:02 -07:00
Urvang Joshi
a681b4f4e5 Rename PRE_VP8 state to WEBP_HEADER 
Also, rename state VP8_FRAME_HEADER to VP8_HEADER (to be consistent with
VP8L_HEADER).

Change-Id: Ief2d2f483e36d37f00d8d0db87026ad059f27327
 2013-04-08 14:46:05 -07:00
Urvang Joshi
ead4d47859 Add incremental support for extended format files 
This applies to images with optional chunks (e.g. images with ALPH
chunk,
ICCP chunk etc). Before this, the incremental decoding used to work like
non-incremental decoding for such files, that is, no rows were decoded
until
all data was available.

The change is in 2 parts:
- During optional chunk parsing, don't wait for the full VP8/VP8L chunk.
- Remap 'alpha_data' pointer whenever a new buffer is allocated/used in
WebPIAppend() and WebPIUpdate().

Change-Id: I6cfd6ca1f334b9c6610fcbf662cd85fa494f2a91
 2013-04-08 14:29:14 -07:00
James Zern
69d0f92658 Makefile.vc: have 'all' target build everything 
default is still the core examples as makefile.unix

Change-Id: Ica3fe6123f4359aefa130b39d2b0739b65e34c0b
 2013-04-05 19:21:01 -07:00
James Zern
52967498b3 Makefile.vc: flags cleanup 
- drop some unnecessary link flags
- use lib.exe directly for creating libraries
- factorize /nologo and use it consistently

Change-Id: Ie76119bc051e9bc53e4d6bba1a0a3f124f9062fc
 2013-04-05 18:47:18 -07:00
James Zern
c61baf0c10 Makefile.vc: drop /FD flag 
breaks under wine; from MSDN:
/FD is only used by the development environment, and it should not be
used from the command line or a build script.

Change-Id: I180c9813e721b163cc645b9b7f14fe36556019d3
 2013-04-05 14:54:05 -07:00
James Zern
3a15125d2f update gitignore 
*.a, new examples and new automake-1.12 file (ar-lib)

Change-Id: I28d7bc59a2977a7c5959940936e3d13a71dd149c
 2013-04-05 14:51:02 -07:00
James Zern
5167ca4759 Merge "WebPEncode: An additional check. Start VP8EncLoop/VP8EncTokenLoop only if VP8EncStartAlpha succeeded." 2013-04-05 12:00:46 -07:00
Urvang Joshi
67708d6701 WebPEncode: An additional check. 
Start VP8EncLoop/VP8EncTokenLoop only if VP8EncStartAlpha succeeded.

Change-Id: Id1faca3e6def88102329ae2b4974bd4d6d4c4a7a
 2013-04-05 11:33:44 -07:00
Urvang Joshi
b68912af2c pngdec: Avoid a double-free. 
Earlier, at line#275, if ok == 0, it would have triggered a double free
of 'rgb'.

Change-Id: Iaee1f35824a66f6e4b488e523416f73b87c5ec30
 2013-04-05 11:24:59 -07:00