Commit Graph

2185 Commits

Author SHA1 Message Date
James Zern
e1e9be3502 cosmetics: spelling/grammar in README and lib headers
Change-Id: Ib8648adf652d29dd38887e5e07b09b4aa3965c6e
2011-07-15 18:58:56 -07:00
James Zern
b4d0ef8f58 Makefile.vc: add DLL configs
(release|debug)-dynamic
These configurations will produce a dll in bin/ and an import lib under
lib/.
Currently the -noasm switch in the examples will be disabled for these
builds due to a dependency on VP8EncGetCPUInfo.

Change-Id: I2cbac0064f0e500698d14ffc03200791ca837090
2011-07-15 15:25:02 -07:00
Pascal Massimino
998754a734 remove unused nb_i4_ and nb_i16_ fields.
Change-Id: Idf361e5528bddb3b25f3bc12502fdfd5c4cf9149
2011-07-15 14:57:07 -07:00
Pascal Massimino
9f01ce3afa rename WebPDecBuffer::memory -> private_memory
This makes it clear that it shouldn't be used externally.

Change-Id: I10c04c6606abbe851b6a3b424832803e842b2057
2011-07-15 14:49:01 -07:00
Pascal Massimino
fb5d659bbd fix an overflow bug in LUT calculation
round(clip()) != clip(round())

Change-Id: Ia53f845b62e01bce672456cb7cdf8581f1a7ce44
2011-07-14 22:22:46 -07:00
James Zern
d646d5c743 swig: add WebPDecodeARGB
Change-Id: I6f22cf0f87a7274f2ed63e4aa96267a8155a5e35
2011-07-14 19:05:55 -07:00
Pascal Massimino
78aeed4088 add missing WebPDecodeARGBInto() and switch ARGB4444 to RGBA4444 as was intended 2011-07-14 11:41:23 -07:00
James Zern
cd7c5292e9 explicitly mark library functions as extern
Add WEBP_EXTERN(type) macro which should make Windows DLL builds simpler
by allowing the signature to be changed.

Change-Id: I0cfa45dff779985680b1a38ddff30973a0d26639
2011-07-13 17:48:39 -07:00
Pascal Massimino
19db59f80f add support for RGB565, ARGB4444 and ARGB colorspace (decoder)
RGB565 and ARGB4444 are only supported through the advanced decoding API.
ARGB being somewhat generic, there's an easy WebPDecodeARGB()
new function for convenience.

Patch by Vikas Arora (vikaas dot arora at gmail dot com)

Change-Id: Ic7b6f72bd70aca458d14e7fdd23679212430ebca
2011-07-13 09:08:58 -07:00
Pascal Massimino
c915fb2aa7 encoder speed-up: hardcode special level values
1-3% faster

Change-Id: Ib2131989fbf819bcbfa6456adbeea0ba27c914f7
2011-07-12 18:21:22 -07:00
Pascal Massimino
c558bdad28 Rename and improve the API to retrieve decoded area
Change-Id: Iec7e0a1361c27dcf2dc8445170ab5b400454fce9
2011-07-12 13:59:51 -07:00
James Zern
bf599d74a4 Merge "makefile.unix: disable -Wvla by default" 2011-07-12 13:38:10 -07:00
Pascal Massimino
c9ea03d770 SSE2 version of strong filtering
~10% faster decoding
Patch by Somnath Banerjee (somnath at google dot com)

Change-Id: I10e380c036ff61afe24afc26084a508ab01e8502
2011-07-11 23:04:26 -07:00
James Zern
993af3e29a makefile.unix: disable -Wvla by default
Rather than add bulk to test for the new flag, simply comment out -Wvla
to keep the base makefile simple.
-Wvla was added in gcc-4.3.0.

Change-Id: I21feb456d7498ea628defb436a50c3d828e7f971
2011-07-08 21:23:27 -04:00
James Zern
3827e1bce4 Merge "examples: (windows/WIC) add alpha support" 2011-07-08 14:10:17 -07:00
Pascal Massimino
e291fae0fc SSE2 functions for the fancy upsampler.
~5-10% faster.
Heavy 8bit arithmetic trickery!
Patch by Somnath Banerjee (somnath at google dot com)

Change-Id: I9fd2c511d9f631e9cf4b008c46127b49fb527b47
2011-07-07 18:12:53 -07:00
Pascal Massimino
a06bbe2e80 add WebPISetIOHooks() to set some custom hooks on the incremental decoder object.
Change-Id: I01e973a1e45e3d60dc11fd284df3cbb938cf0485
2011-07-07 16:38:03 -07:00
pascal massimino
7643a6f2ef Merge "makefile.unix: use uname to detect OSX environment" 2011-07-07 16:29:25 -07:00
Pascal Massimino
5142a0be3a export alpha channel (if present) when dumping to PGM format
Change-Id: Ica1818937fa03b29a749887d28f49fe675c8b1db
2011-07-07 16:08:15 -07:00
James Zern
14d5731c7e makefile.unix: use uname to detect OSX environment
HOSTTYPE is x86_64 on e.g.,
bash 3.2.48(1)-release
ProductName:	Mac OS X
ProductVersion:	10.6.7
BuildVersion:	10J869

intel-mac seems to be the value under tcsh.

Change-Id: I814ad6d3b733933057cea605917b185ff6d423d0
2011-06-24 21:29:59 -04:00
James Zern
0805706252 examples: quiet warnings
When WEBP_HAVE_(JPEG|PNG) were undefined the stub functions would
produce warnings for unused parameters.

Change-Id: I79b2457c769d1f9382be834162de019c5427f94b
2011-06-24 16:50:02 -04:00
James Zern
3cfe0888ae examples: (windows/WIC) add alpha support
Portions based on a patch by Ismail Keskin (iskeskin at gmail dot com)
Fixes issue #83.

Change-Id: Ib54188910354240a2731b0a3a3d0915d17af2233
2011-06-22 12:01:48 -07:00
Pascal Massimino
13ed94b8ad add compile warning for variable-length-array 2011-06-20 17:42:25 -07:00
Pascal Massimino
5a18eb1a31 Merge "add Advanced Decoding Interface" 2011-06-20 16:30:01 -07:00
Pascal Massimino
5c4f27f9f5 add missing \n 2011-06-20 15:47:35 -07:00
Pascal Massimino
f4c4e416c0 80 cols fix 2011-06-20 15:39:40 -07:00
Pascal Massimino
d260310511 add Advanced Decoding Interface
You can now use WebPDecBuffer, WebPBitstreamFeatures and WebPDecoderOptions
to have better control over the decoding process (and the speed/quality tradeoff).

WebPDecoderOptions allow to:
 - turn fancy upsampler on/off
 - turn in-loop filter on/off
 - perform on-the-fly cropping
 - perform on the-fly rescale
(and more to come. Not all features are implemented yet).

On-the-fly cropping and scaling allow to save quite some memory
(as the decoding operation will now scale with the output's size, not
the input's one). It saves some CPU too (since for instance,
in-loop filtering is partially turned off where it doesn't matter,
and some YUV->RGB conversion operations are ommitted too).

The scaler uses summed area, so is mainly meant to be used for
downscaling (like: for generating thumbnails or previews).

Incremental decoding works with these new options.
More doc to come soon.

dwebp is now using the new decoding interface, with the new flags:
  -nofancy
  -nofilter
  -crop top left width height
  -scale width height

Change-Id: I08baf2fa291941686f4ef70a9cc2e4137874e85e
2011-06-20 15:30:52 -07:00
Pascal Massimino
bd2f65f67c sse2 version of the complex filter
12-15% faster.
(only inner edge is implemented for now)

patch by Somnath Banerjee (somnath at google dot com)
2011-06-20 00:27:47 -07:00
Pascal Massimino
96ed9ce0fb perform two idct transforms at a time when possible
patch by Christian Duvivier (cduvivier at google dot com)
2011-06-20 00:22:37 -07:00
Pascal Massimino
01af7b69cd use aligned stored 2011-06-18 08:27:16 -07:00
James Zern
0e1d1fdfe0 Merge "Makefile.vc: add experimental target" 2011-06-17 18:34:29 -07:00
James Zern
2a1292a61f Makefile.vc: add experimental target
Defines WEBP_EXPERIMENTAL_FEATURES for the build.

Change-Id: I1f118ca07018a92bfdf86f562781971d4382fc6e
2011-06-17 18:32:15 -07:00
James Zern
23bf351e71 Enable decode SSE2 for Visual Studio
Change-Id: If32f8b1cfe415b2f9330af36a5dd0e31e49582b2
2011-06-17 18:12:01 -07:00
Somnath Banerjee
131a4b7b7b dec/dsp_sse2: fix visual studio compile
This addresses issue #80

Change-Id: Ia81ae21f85266dd64d39da63ff2fae33f9a572dc
2011-06-17 18:04:08 -07:00
James Zern
00d9d6807c swig: file reorganization
Rather than %include'ing decode.h and potentially pickup new
(unsupported functions), explicitly list the desired functions as with
encode.
Reorganize a bit to contain most of the language specific additions to
one area. This fixes the visibility of the wrap_* functions in java. The
method modifiers need to come before the function prototypes.

Change-Id: I595df4d1a60edcb263923b5a2621879d3b6233cf
2011-06-17 14:32:15 -07:00
pascal massimino
7fc7e0d9eb Merge "swig/java: basic encode support" 2011-06-16 13:45:50 -07:00
Pascal Massimino
3be57b166f fix MSVC compile for WEBP_EXPERIMENTAL_FEATURES
patch by Ismail Keskin (iskeskin at gmail dot com)
fixes issue #82
2011-06-16 13:33:07 -07:00
James Zern
40a7e347ff dec/dsp: disable sse2 for Visual Studio builds
This is a temporary workaround for issue #80.

Currently dec/dsp_sse2 is not included in Makefile.vc. Simply adding it
will cause a build error, however, as cl does not support aligning
function parameters producing, e.g.,
src\dec\dsp_sse2.c(228) : error C2719: 'q1': formal parameter with
__declspec(align('16')) won't be aligned

Change-Id: Id29e6802dd29110e59c4f6d13ffa5d4793c750a0
2011-06-15 13:53:14 -07:00
Pascal Massimino
e4d540c842 add SSE2 code for transform
Pretty similar to the encoder's version
3% faster decoding on average

patch by Christian Duvivier (cduvivier at google dot com)
2011-06-15 10:51:31 -07:00
James Zern
54f2170a15 swig/java: basic encode support
Wrap WebPEncode???* to provide an interface similar to decode.
As only WebPGetEncoderVersion is wrapped directly from encode.h avoid
including it in the swig file to reduce %ignore's.
This change also removes unnecessary incremental decoding related enums.

Change-Id: I0b5424026aa6ae012c6a29ad2f2301c2681ca301
2011-06-15 10:37:53 -07:00
Pascal Massimino
c5d4584b2c call function pointers instead of C-version
will potentially call SSE2 version instead of the plain-C one
catch by Christian Duvivier (cduvivier at google dot com)
2011-06-14 18:57:50 -07:00
pascal massimino
ea43f045b5 Merge "configure: mingw32 targets: test for WIC support" 2011-06-10 16:11:51 -07:00
Pascal Massimino
a11009d7fc SSE2 version of simple in-loop filtering
~10% faster decoding

Patch by Somnath Banerjee (somnath at google dot com)

Change-Id: I200db408272b4f61cda9d9261d2d4370a698d6c4
2011-06-10 15:10:18 -07:00
Pascal Massimino
42548da9e3 shave one unneeded filter-cache line
There was 1 unneeded sample line allocated for the filter cache in of simple filtering.
+ Add an explaining comment.

Change-Id: I775a596c8b8643e773e0eade8aa341dc23fb290f
2011-06-09 12:08:08 -07:00
James Zern
31f9dc6fdd configure: mingw32 targets: test for WIC support
Replace usage of _WIN32 in examples as this does not guarantee the
presence of wincodec.h.
mingw-w64 notably includes wincodec.h, though other releases do not.

Under cygwin the following can be used for a WIC enabled binary:
./configure --target=i686-pc-mingw32 CC=i686-w64-mingw32-gcc.exe

Change-Id: Ica6a714c3356a8eaf88486a1c3f5aa6adde394c0
2011-06-08 11:32:41 -07:00
Pascal Massimino
1955969925 Merge "split expression in two." 2011-06-08 09:08:54 -07:00
Pascal Massimino
415dbe4625 split expression in two.
makes order of evaluation strictly defined.
(cf http://en.wikipedia.org/wiki/Sequence_point)

Suggestion by mr dot gnu dot jr at gmail dot com
2011-06-08 09:06:03 -07:00
James Zern
e29072a8ce configure: test for zlib only w/--enable-experimental
Only builds with --enable-experimental require zlib currently.
A base install of mingw will not include the development headers and
library. libwebp itself will now build in such environments.
Additionally, remove -lz from **/Makefile.am, -lz will be added to LIBS
by AC_CHECK_LIB when necessary.

Change-Id: Iae8319cdf00162ecb7ed44661c02f40beb34f155
2011-06-07 14:12:53 -07:00
James Zern
b2b0090b4c Simplify Visual Studio ifdefs
Use _MSC_VER as the intrinsics compile without /arch:SSE2 on x86.
Also avoids applying the same flag to all files which defeated the
purpose of the runtime cpu-detection.

Thanks to Frank B. for the suggestion!

Change-Id: Iae9933a3cee704e663d9bbd53d0fa68e8c025425
2011-06-03 11:40:15 -07:00
Pascal Massimino
ca7a2fd66d Add error reporting from encoding failures.
picture->error_code can be looked up for finer error diagnose.
Added readable error messages to cwebp too.

Should close bug #75 (http://code.google.com/p/webp/issues/detail?id=75)

Change-Id: I8889d06642d90702f698cd5c27441a058ddb3636
2011-06-02 07:06:39 -07:00