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Frank Bossen a6b1bda094 Consider vertical gradient in DC trellis

Add extension parameter JFLOAT_TRELLIS_DELTA_DC_WEIGHT that controls
how distortion is calculated in DC trellis quantization. The parameter
defines weighting between actual distortion of DC and distortion of
vertical gradient of DC.
By default the parameter is 0.0 and has no effect.
Addresses #117

2014-12-17 07:51:12 +09:00

cmakescripts

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

doc/html

If the output buffer in the TurboJPEG destination manager was allocated by the destination manager and is being reused from a previous compression operation, then we need to get the buffer size from the previous operation, since the calling program doesn't know the actual buffer size.

2014-08-21 15:51:47 +00:00

java

Merge libjpeg-turbo r1390

2014-09-07 18:21:19 +01:00

md5

Fix build on OS X PowerPC platforms

2014-08-30 13:51:18 +00:00

release

Remove trailing spaces

2014-11-06 09:32:06 +00:00

sharedlib

Merge libjpeg-turbo r1390

2014-09-07 18:21:19 +01:00

simd

Merge branch 'libjpeg-turbo'

2014-11-08 16:36:45 +00:00

testimages

12-bit JPEG support

2014-08-09 23:06:07 +00:00

win

Use tabs in the DLL definition files, per Microsoft conventions.

2014-11-05 17:17:04 -06:00

.gitauthors

Script for git-svn reinitialization

2014-09-07 20:50:07 +01:00

.gitignore

Update .gitignore

2014-08-28 14:17:20 -04:00

acinclude.m4

Properly detect the need for gas-preprocessor.pl when building for ARM64

2014-08-20 13:14:46 +00:00

bmp.c

Remove trailing spaces (+ one additional tab in TJUnitTest.java that was missed in the previous commit)

2014-05-09 18:06:58 +00:00

bmp.h

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

BUILDING.txt

Merge pull request #121 from dcommander/libjpeg-turbo-diff-review

2014-11-18 17:58:36 -06:00

cderror.h

Merge mozjpeg into libjpeg-turbo

2014-09-07 18:20:38 +01:00

cdjpeg.c

Remove MS-DOS code and information, and adjust copyright headers to reflect the removal of features in r1307 and r1308. libjpeg-turbo has never supported MS-DOS, nor is it even possible for us to do so.

2014-05-18 18:33:44 +00:00

cdjpeg.h

Reconcile indentation, whitespace, and other code formatting with libjpeg-turbo.

2014-11-06 01:14:11 -06:00

change.log

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

ChangeLog-mozilla.txt

Re-brand to libmozjpeg.

2014-02-27 15:26:48 -06:00

ChangeLog.txt

Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran.

2014-11-21 22:26:15 -06:00

cjpeg.1

Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran.

2014-11-21 22:26:15 -06:00

cjpeg.c

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

CMakeLists.txt

Restore full bitwise compatibility with libjpeg-turbo when -revert is used

2014-12-14 05:31:57 -06:00

coderules.txt

libjpeg-turbo has never supported non-ANSI compilers, so get rid of the crufty SIZEOF() macro. It was not being used consistently anyhow, so it would not have been possible to build prior releases of libjpeg-turbo using the broken compilers for which that macro was designed.

2014-05-18 19:04:03 +00:00

configure.ac

Bump mozjpeg version to 3.0

2014-12-07 10:15:45 -06:00

djpeg.1

Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran.

2014-11-21 22:26:15 -06:00

djpeg.c

Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran.

2014-11-21 22:26:15 -06:00

doxygen-extra.css

Make the documentation more readable by displaying fixed-width text (which is used to refer to variables and functions) in a different color.

2014-08-10 16:43:31 +00:00

doxygen.config

Make the documentation more readable by displaying fixed-width text (which is used to refer to variables and functions) in a different color.

2014-08-10 16:43:31 +00:00

example.c

Use mozjpeg defaults by default

2014-11-19 23:31:20 -06:00

git-init-svn.sh

Script for git-svn reinitialization

2014-09-07 20:50:07 +01:00

jaricom.c

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

jcapimin.c

Fix double free of cinfo->master caused by the extension framework modifications

2014-12-14 03:59:44 -06:00

jcapistd.c

Restore backward ABI compatibility with libjpeg/libjpeg-turbo by moving the mozjpeg-specific parameters into the opaque jpeg_comp_master struct and implementing generic accessor functions for getting/setting those parameters. These functions can be used upstream, if the need for them arises in libjpeg-turbo, and they can also be easily extended to cover future extensions to the decompressor. Note that, in order to use jpeg_comp_master as a repository for extension parameters, cinfo->master is now allocated within the body of jpeg_CreateCompress(). It is later re-allocated in jinit_c_master_control(), because that function (and others in jcmaster.c) use an extended form of jpeg_comp_master, but the existing extension parameters are copied into the new master instance. Similar modifications would need to be made to the decompressor to support the same type of extension framework.

2014-11-04 01:58:52 -06:00

jcarith.c

2014-05-18 19:04:03 +00:00

jccoefct.c

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jccolext.c

Convert tabs to spaces in the libjpeg code and the SIMD code (TurboJPEG retains the use of tabs for historical reasons. They were annoying in the libjpeg code primarily because they were not consistently used and because they were used to format as well as indent the code. In the case of TurboJPEG, tabs are used just to indent the code, so even if the editor assumes a different tab width, the code will still be readable.)

2014-05-09 18:00:32 +00:00

jccolor.c

SIMD-accelerated int upsample routine for MIPS DSPr2

2014-05-18 20:04:47 +00:00

jcdctmgr.c

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jcext.c

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jchuff.c

Merge mozjpeg into libjpeg-turbo

2014-09-07 16:51:55 +01:00

jchuff.h

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jcinit.c

Fix trellis / no Huffman opt combination

2014-12-09 21:24:53 -05:00

jcmainct.c

2014-05-18 19:04:03 +00:00

jcmarker.c

Restore full bitwise compatibility with libjpeg-turbo when -revert is used

2014-12-14 05:31:57 -06:00

jcmaster.c

Fix double free of cinfo->master caused by the extension framework modifications

2014-12-14 03:59:44 -06:00

jcmaster.h

Fix double free of cinfo->master caused by the extension framework modifications

2014-12-14 03:59:44 -06:00

jcomapi.c

2014-05-18 19:04:03 +00:00

jconfig.h.in

12-bit JPEG support

2014-08-09 23:06:07 +00:00

jconfig.txt

Reconcile indentation, whitespace, and other code formatting with libjpeg-turbo.

2014-11-06 01:14:11 -06:00

jconfigint.h.in

This patch accomplishes the following:

2014-04-20 09:13:37 +00:00

jcparam.c

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jcphuff.c

Reconcile indentation, whitespace, and other code formatting with libjpeg-turbo.

2014-11-06 01:14:11 -06:00

jcprepct.c

2014-05-18 19:04:03 +00:00

jcsample.c

SIMD-accelerated int upsample routine for MIPS DSPr2

2014-05-18 20:04:47 +00:00

jcstest.c

Use mozjpeg defaults by default

2014-11-19 23:31:20 -06:00

jctrans.c

2014-11-04 01:58:52 -06:00

jdapimin.c

2014-05-18 19:04:03 +00:00

jdapistd.c

Get rid of the HAVE_PROTOTYPES configuration option, as well as the related JMETHOD and JPP macros. libjpeg-turbo has never supported compilers that don't handle prototypes. Doing so requires ansi2knr, which isn't even supported in the IJG code anymore.

2014-05-16 10:43:44 +00:00

jdarith.c

2014-05-18 19:04:03 +00:00

jdatadst-tj.c

Oops

2014-08-21 22:16:25 +00:00

jdatadst.c

2014-05-18 19:04:03 +00:00

jdatasrc-tj.c

2014-05-18 19:04:03 +00:00

jdatasrc.c

2014-05-18 19:04:03 +00:00

jdcoefct.c

2014-05-18 19:04:03 +00:00

jdcol565.c

Fix issues with RGB565 color conversion on big endian machines. The RGB565 routines are now abstracted in a separate file, with separate little-endian and big-endian versions defined at compile time through the use of macros (this is similar to how the colorspace extension routines work.) This allows big-endian machines to take advantage of the same performance optimizations as little-endian machines, and it retains the performance on little-endian machines, since the conditional branch for endianness is at a very coarse-grained level.

2014-08-30 20:33:49 +00:00

jdcolext.c

2014-05-09 18:00:32 +00:00

jdcolor.c

When building libjpeg-turbo on Un*x systems, INT32 is usually typedef'ed to long, not int, so we need to specify an int pointer when doing a 4-byte write to the RGB565 output buffer. On little endian systems, this doesn't matter, but when you write a 32-bit int to a 64-bit long pointer address on a big endian system, you are writing to the upper 4 bytes, not the lower 4 bytes. NOTE: this will probably break on big endian systems that use 16-bit ints (are there any of those still around?)

2014-09-04 17:28:28 +00:00

jdct.h

12-bit JPEG support

2014-08-09 23:06:07 +00:00

jddctmgr.c

SIMD-accelerated int upsample routine for MIPS DSPr2

2014-05-18 20:04:47 +00:00

jdhuff.c

2014-05-18 19:04:03 +00:00

jdhuff.h

Further copyright header cleanup

2014-05-18 17:52:06 +00:00

jdinput.c

2014-05-18 19:04:03 +00:00

jdmainct.c

2014-05-18 19:04:03 +00:00

jdmarker.c

2014-05-18 19:04:03 +00:00

jdmaster.c

2014-05-18 19:04:03 +00:00

jdmerge.c

2014-09-04 17:28:28 +00:00

jdmrg565.c

2014-08-30 20:33:49 +00:00

jdmrgext.c

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

jdphuff.c

2014-05-18 19:04:03 +00:00

jdpostct.c

2014-05-18 19:04:03 +00:00

jdsample.c

SIMD-accelerated int upsample routine for MIPS DSPr2

2014-05-18 20:04:47 +00:00

jdtrans.c

2014-05-18 18:33:44 +00:00

jerror.c

2014-05-18 18:33:44 +00:00

jerror.h

Convert JBOOLEAN_USE_MOZ_DEFAULTS into an integer "compression profile" parameter

2014-12-14 01:56:26 -06:00

jfdctflt.c

2014-05-09 18:00:32 +00:00

jfdctfst.c

2014-05-09 18:00:32 +00:00

jfdctint.c

2014-05-09 18:00:32 +00:00

jidctflt.c

Improve floating point DCT

2014-07-23 10:26:46 -04:00

jidctfst.c

2014-05-09 18:00:32 +00:00

jidctint.c

2014-05-09 18:00:32 +00:00

jidctred.c

2014-05-09 18:00:32 +00:00

jinclude.h

2014-05-18 19:04:03 +00:00

jmemmgr.c

2014-05-18 19:04:03 +00:00

jmemnobs.c

2014-05-18 18:33:44 +00:00

jmemsys.h

2014-05-18 18:33:44 +00:00

jmorecfg.h

12-bit JPEG support

2014-08-09 23:06:07 +00:00

jpeg_nbits_table.h

Use precomputed table

2014-07-24 10:50:59 -04:00

jpegcomp.h

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

jpegint.h

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jpeglib.h

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

jpegtran.1

Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran.

2014-11-21 22:26:15 -06:00

jpegtran.c

Convert JBOOLEAN_USE_MOZ_DEFAULTS into an integer "compression profile" parameter

2014-12-14 01:56:26 -06:00

jpegyuv.c

jpegyuv: fix unused but set warning

2014-12-07 02:49:17 -05:00

jquant1.c

2014-05-18 19:04:03 +00:00

jquant2.c

2014-05-18 19:04:03 +00:00

jsimd_none.c

ARM NEON SIMD support for YCC-to-RGB565 conversion, and optimizations to the existing YCC-to-RGB conversion code:

2014-08-23 15:47:51 +00:00

jsimd.h

ARM NEON SIMD support for YCC-to-RGB565 conversion, and optimizations to the existing YCC-to-RGB conversion code:

2014-08-23 15:47:51 +00:00

jsimddct.h

2014-05-16 10:43:44 +00:00

jstdhuff.c

2014-05-18 19:04:03 +00:00

jutils.c

2014-05-18 19:04:03 +00:00

jversion.h

Merge libjpeg-turbo r1325

2014-09-07 16:59:11 +01:00

libjpeg.map.in

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

libjpeg.txt

Update doc re: various DCT implementations

2014-07-23 10:23:24 -04:00

LICENSE.txt

Various wordsmithing and cosmetic changes to remove libjpeg-turbo-specific information

2014-11-05 20:10:37 -06:00

Makefile.am

Partially fix 'make dist'

2014-12-14 06:00:40 -06:00

rd_average.sh

Adding scripts to generate rd-curves.

2014-03-17 19:30:43 -04:00

rd_collect_sub.sh

Adding scripts to generate rd-curves.

2014-03-17 19:30:43 -04:00

rd_collect.sh

Adding scripts to generate rd-curves.

2014-03-17 19:30:43 -04:00

rd_plot.sh

Adding scripts to generate rd-curves.

2014-03-17 19:30:43 -04:00

rdbmp.c

2014-05-18 19:04:03 +00:00

rdcolmap.c

2014-05-09 18:00:32 +00:00

rdgif.c

2014-05-09 18:00:32 +00:00

rdjpeg.c

Reconcile indentation, whitespace, and other code formatting with libjpeg-turbo.

2014-11-06 01:14:11 -06:00

rdjpgcom.1

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

rdjpgcom.c

Remove VMS-specific code

2014-05-29 19:31:45 +00:00

rdpng.c

PNG reading support

2014-08-04 01:18:00 +01:00

rdppm.c

2014-05-18 19:04:03 +00:00

rdrle.c

2014-05-18 19:04:03 +00:00

rdswitch.c

Fix C comment style

2014-11-28 08:10:20 -05:00

rdtarga.c

2014-05-18 19:04:03 +00:00

README

Document -rgb option in djpeg man page; "gray-scale"="grayscale"

2014-05-12 09:09:40 +00:00

README-mozilla.txt

Consider vertical gradient in DC trellis

2014-12-17 07:51:12 +09:00

README-turbo.txt

Drop executable bit for README-turbo.txt

2014-12-08 13:28:32 -06:00

README.md

Update README.md with link to 2.0 announcement and mailing list.

2014-07-24 16:39:26 -05:00

structure.txt

2014-05-18 18:33:44 +00:00

tjbench.c

Remove unused code in TJBench

2014-11-06 01:30:06 -06:00

tjbenchtest.in

Extend tjbenchtest so that it tests the dynamic JPEG buffer allocation feature in TurboJPEG. Disable the tiling feature in TJBench whenever dynamic buffer allocation is enabled (because the tiling feature requires a separate buffer for each tile, using it successfully with dynamic buffer allocation would require a separate TurboJPEG compressor instance for each tile, and it's not worth going to that trouble right now.)

2014-08-22 03:04:06 +00:00

tjbenchtest.java.in

Run the TurboJPEG conformance tests out of a directory in /tmp (for improved performance, if the source directory is on a remote file share.) Fix an issue in TJBench.java that prevented it from working properly if the source image resided in a directory with a dot in the name.

2014-08-22 03:00:37 +00:00

tjexampletest.in

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

tjunittest.c

Ensure that tjFree() is used for any JPEG buffers that might have been dynamically allocated by the compress/transform functions. To keep things simple, we use tjAlloc() for the statically-allocated buffer as well, so that tjFree() can always be used to free the buffer, regardless of whether it was allocated by tjbench or by the TurboJPEG library. This fixes crashes that occurred on Windows when running tjunittest or tjbench with the -alloc flag.

2014-08-22 19:27:28 +00:00

tjutil.c

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

tjutil.h

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

transupp.c

Merge libjpeg-turbo r1325

2014-09-07 16:59:11 +01:00

transupp.h

2014-05-18 18:33:44 +00:00

turbojpeg-jni.c

Windows doesn't have setenv(). Go, go Gadget Macros.

2014-08-22 15:39:32 +00:00

turbojpeg-mapfile

Extend the TurboJPEG C API to support handling YUV images stored in separate image planes instead of a unified buffer

2014-08-11 18:05:41 +00:00

turbojpeg-mapfile.jni

Refactored YUVImage Java class so that it supports both unified YUV image buffers as well as separate YUV image planes; modified the JNI functions accordingly and added new helper functions to the TurboJPEG C API (tjPlaneWidth(), tjPlaneHeight(), tjPlaneSizeYUV()) to facilitate those modifications; changed potentially confusing "component width" and "component height" terms to "plane width" and "plane height" and modified variable names in turbojpeg.c to reflect this; numerous other documentation tweaks

2014-08-17 12:23:49 +00:00

turbojpeg.c

Introduce a TJ_REVERT environment variable, which reverts the behavior of the TurboJPEG API to libjpeg[-turbo] defaults.

2014-12-14 04:43:02 -06:00

turbojpeg.h

2014-08-21 15:51:47 +00:00

usage.txt

Update doc re: various DCT implementations

2014-07-23 10:23:24 -04:00

wizard.txt

2014-05-09 18:00:32 +00:00

wrbmp.c

Fix Windows build

2014-08-30 22:00:33 +00:00

wrgif.c

2014-05-18 19:04:03 +00:00

wrjpgcom.1

Initial commit of libjpeg-turbo plus readme edits.

2014-01-13 18:28:20 -06:00

wrjpgcom.c

Fix #56

2014-06-26 12:45:03 -04:00

wrppm.c

2014-05-18 19:04:03 +00:00

wrrle.c

2014-05-18 19:04:03 +00:00

wrtarga.c

2014-05-18 19:04:03 +00:00

yuvjpeg.c

Use mozjpeg defaults by default

2014-11-19 23:31:20 -06:00

README.md

Mozilla JPEG Encoder Project

This project's goal is to reduce the size of JPEG files without reducing quality or compatibility with the vast majority of the world's deployed decoders.

The idea is to reduce transfer times for JPEGs on the Web, thus reducing page load times.

'mozjpeg' is not intended to be a general JPEG library replacement. It makes tradeoffs that are intended to benefit Web use cases and focuses solely on improving encoding. It is best used as part of a Web encoding workflow. For a general JPEG library (e.g. your system libjpeg), especially if you care about decoding, we recommend libjpeg-turbo.

More information:

Languages

C 54.6%

Assembly 26.7%

HTML 8.9%

Java 4.4%

CMake 2.4%

Other 2.9%