| 6eb7d3798b5a79347c62825fc4c16f7ce673bdd0 |
|
16-Oct-2016 |
Alex Naidis <alex.naidis@linux.com> |
libjpeg-turbo: Upgrade to 1.5.1
The changes from 1.4.2 to 1.5.1 include
a big amount of fixes and huge performance improvements.
As highlights there is a full ARM 64-bit (ARMv8) NEON SIMD
implementation which improves compression of full-color JPEGs
by about 2-2.5x on average on Cortex-A53 and Cortex-A57 cores.
Also SIMD acceleration for Huffman encoding on NEON-capable
ARM 32-bit and 64-bit platforms was added.
Performance on x86/x86_64 was also improved by
adding better optimized SSE2 routines.
For the full changelog, please see the ChangeLog.md
file.
Partial decoding optimizations, the security fix
to adress b/27494207 and the fix for the AARCH64
conformance issueare present in the release.
The README.android file was edited to reflect this.
The configuration files were regenerated
and all Android specific changes were applied.
BUG:28268702
Change-Id: I538291d894df1da01d3f733771647df1fb61ec42
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
/external/libjpeg-turbo/jfdctint.c
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| 8e9cef2e6f5156c4b055a04a8f979b7291fc6b7a |
|
21-Sep-2015 |
DRC <information@libjpeg-turbo.org> |
Fix various issues reported by the UB sanitizers
Most of these involved left shifting a negative number, which is
technically undefined (although every modern compiler I'm aware of
will implement this by treating the signed integer as a 2's complement
unsigned integer-- the LEFT_SHIFT() macro just makes this behavior
explicit in order to shut up ubsan.) This also fixes a couple of
non-issues in the entropy codecs, whereby the sanitizer reported an
out-of-bounds index in the 4th argument of jpeg_make_d_derived_tbl().
In those cases, the index was actually out of bounds (caused by a
malformed JPEG image), but jpeg_make_d_derived_tbl() would have caught
the error and aborted prior to actually using the invalid address. Here
again, the fix was to make our intentions explicit so as to shut up
ubsan.
/external/libjpeg-turbo/jfdctint.c
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| e5eaf37440b8e337ab150c017df7c03faf846c51 |
|
09-May-2014 |
DRC <dcommander@users.sourceforge.net> |
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.)
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1278 632fc199-4ca6-4c93-a231-07263d6284db
/external/libjpeg-turbo/jfdctint.c
|
| 489583f5165e05d37302e8eeec58104ea0109127 |
|
07-Feb-1996 |
Thomas G. Lane <tgl@netcom.com> |
The Independent JPEG Group's JPEG software v6a
/external/libjpeg-turbo/jfdctint.c
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| 36a4ccccd33f5cc9df62949554af87129ced7f84 |
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24-Sep-1994 |
Thomas G. Lane <tgl@netcom.com> |
The Independent JPEG Group's JPEG software v5
/external/libjpeg-turbo/jfdctint.c
|