|
8af3f8a9
|
2016-01-18T16:40:07
|
|
Provide pkg-config (.pc) scripts
This allows a project to use PKG_CHECK_MODULES() in its configure.ac
file to easily check for the presence of libjpeg-turbo and modify the
compiler/linker flags accordingly. Note that if a project relies solely
on pkg-config to check for libjpeg-turbo, then it will not be possible
to build that project using libjpeg or an earlier version of
libjpeg-turbo.
Closes #53
Based on:
https://github.com/cberner/libjpeg-turbo/commit/496713871939b550d00005b4042420da41641a0a
|
|
|
d38b4f21
|
2016-01-16T01:53:32
|
|
Optimize ARM64 SIMD code for Cavium ThunderX
Per @ssvb:
ThunderX is an ARM64 chip that dedicates most of its transistor real
estate to providing 48 cores, so each core is not as fast as a result.
Each core is dual-issue & in-order for scalar instructions and has only
a single-issue half-width NEON unit, so the peak throughput is one
128-bit instruction per 2 cycles. So careful instruction scheduling is
important. Furthermore, ThunderX has an extremely slow implementation
of ld2 and ld3, so this commit implements the equivalent of those
instructions using ld1.
Compression speedup relative to libjpeg-turbo 1.4.2:
48-core ThunderX (RunAbove ARM Cloud), Linux, 64-bit: 58-85% (avg. 74%)
relative to jpeg-6b: 1.75-2.14x (avg. 1.95x)
Refer to #49 and #51 for discussion.
Closes #51.
This commit also wordsmiths the ChangeLog entry (the ARMv8 SIMD
implementation is "complete" only for compression-- it still lacks some
decompression algorithms, as does the ARMv7 implementation.)
Based on:
https://github.com/mayeut/libjpeg-turbo/commit/9405b5fd031558113bdfeae193a2b14baa589a75
which is based on:
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/f561944ff70adef65bb36212913bd28e6a2926d6
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/962c8ab21feb3d7fc2a7a1ec8d26f6b985bbb86f
|
|
|
e8aa5fa9
|
2016-01-15T13:15:54
|
|
Add JSIMD_NOHUFFENC environment variable for ARM
Useful in regression/performance testing
|
|
|
ec6941f7
|
2016-01-15T09:29:11
|
|
Complete the ARM64 NEON SIMD implementation
This adds 64-bit NEON coverage for all of the algorithms that are
covered by the 32-bit NEON implementation, except for h2v1 (4:2:2) fancy
upsampling (used when decompressing 4:2:2 JPEG images.) It also adds
64-bit NEON SIMD coverage for:
* slow integer forward DCT (compressor)
* h2v2 (4:2:0) downsampling (compressor)
* h2v1 (4:2:2) downsampling (compressor)
which are not covered in the 32-bit implementation.
Compression speedups relative to libjpeg-turbo 1.4.2:
Apple A7 (iPhone 5S), iOS, 64-bit: 113-150% (reported)
48-core ThunderX (RunAbove ARM Cloud), Linux, 64-bit: 2.1-33% (avg. 15%)
Refer to #44 and #49 for discussion
This commit also removes the unnecessary
if (simd_support & JSIMD_ARM_NEON)
statements from the jsimd* algorithm functions. Since the jsimd_can*()
functions check for the existence of NEON, the corresponding algorithm
functions will never be called if NEON isn't available.
Based on:
https://github.com/mayeut/libjpeg-turbo/commit/dcd9d84f10fae192c0e3935818dc289bca9c3e29
https://github.com/mayeut/libjpeg-turbo/commit/b0d87b811f37bd560083deea8c6e7d704e5cd944
https://github.com/mayeut/libjpeg-turbo/commit/70cd5c8a493a67f4d54dd2067ae6dedb65d95389
https://github.com/mayeut/libjpeg-turbo/commit/3e58d9a064648503c57ec2650ee79880f749a52b
https://github.com/mayeut/libjpeg-turbo/commit/837b19542f53fa81af83e6ba002d559877aaf597
https://github.com/mayeut/libjpeg-turbo/commit/73dc43ccc870c2e10ba893e9764b8e48d6836585
https://github.com/mayeut/libjpeg-turbo/commit/a82b71a261b4c0213f558baf4bc745f1c27356d8
https://github.com/mayeut/libjpeg-turbo/commit/c1b1188c2106d6ea7b76644b6023b57edeb602e1
https://github.com/mayeut/libjpeg-turbo/commit/305c89284e1bb222b34fbc7261f697a0cc452a41
https://github.com/mayeut/libjpeg-turbo/commit/7f443f99950b4d7d442b9b879648eca5273209bd
https://github.com/mayeut/libjpeg-turbo/commit/4c2b53b77da5a20e30e2aadaeddb0efbfe24e06d
Unified version with fixes:
https://github.com/mayeut/libjpeg-turbo/commit/1004a3cd05870612a194b410efeaa1b4da76d246
|
|
|
499c470b
|
2016-01-13T03:13:20
|
|
ARM32 NEON SIMD implementation of Huffman encoding
Full-color compression speedups relative to libjpeg-turbo 1.4.2:
800 MHz ARM Cortex-A9, iOS, 32-bit: 26-44% (avg. 32%)
Refer to #42 and #47 for discussion.
This commit also removes the unnecessary
if (simd_support & JSIMD_ARM_NEON)
statements from the jsimd* algorithm functions. Since the jsimd_can*()
functions check for the existence of NEON, the corresponding algorithm
functions will never be called if NEON isn't available. Removing those
if statements improved performance across the board by a couple of
percent.
Based on:
https://github.com/mayeut/libjpeg-turbo/commit/fc023c880ce1d6c908fb78ccc25f5d5fd910ccc5
|
|
|
9c8cee8c
|
2016-01-13T13:01:45
|
|
tjbench: Further tweaks to -nowrite feature
* Do not compute compression error if -nowrite is specified
* Adjust formatting of -nowrite usage description
|
|
|
4e356a92
|
2016-01-13T12:25:03
|
|
BUILDING.md: Restore autotools processing instr.
Partially reverts 54014d9c2a41905b7b766057af6728834da64b59. When
building from a git sandbox, as opposed to from an official source
tarball, it is still necessary to run autoreconf.
Closes #48
|
|
|
f3a8684c
|
2016-01-07T00:19:43
|
|
SSE2 SIMD implementation of Huffman encoding
Full-color compression speedups relative to libjpeg-turbo 1.4.2:
2.8 GHz Intel Xeon W3530, Linux, 64-bit: 2.2-18% (avg. 9.5%)
2.8 GHz Intel Xeon W3530, Linux, 32-bit: 10-25% (avg. 17%)
2.3 GHz AMD A10-4600M APU, Linux, 64-bit: 4.9-17% (avg. 11%)
2.3 GHz AMD A10-4600M APU, Linux, 32-bit: 8.8-19% (avg. 15%)
3.0 GHz Intel Core i7, OS X, 64-bit: 3.5-16% (avg. 10%)
3.0 GHz Intel Core i7, OS X, 32-bit: 4.8-14% (avg. 11%)
2.6 GHz AMD Athlon 64 X2 5050e:
Performance-neutral (give or take a few percent)
Full-color compression speedups relative to IPP:
2.8 GHz Intel Xeon W3530, Linux, 64-bit: 4.8-34% (avg. 19%)
2.8 GHz Intel Xeon W3530, Linux, 32-bit: -19%-7.0% (avg. -7.0%)
Refer to #42 for discussion. Numerous other approaches were attempted,
but this one proved to be the most performant across all platforms.
This commit also fixes #3 (works around, really-- the clang-compiled version
of jchuff.c still performs 20% worse than its GCC-compiled counterpart, but
that code is now bypassed by the new SSE2 Huffman algorithm.)
Based on:
https://github.com/mayeut/libjpeg-turbo/commit/2cb4d41330e1edc4469f6b97ba73b73abfbeb02f
https://github.com/mayeut/libjpeg-turbo/commit/36c94e050d117912adbff9fbcc6fe307df240168
|
|
|
eb59b6e7
|
2016-01-11T22:27:38
|
|
Add -nowrite arg to TJBench to improve consistency
Prevents any images from being written to disk, thus making the
performance of the benchmark as CPU-bound as possible.
|
|
|
368cd52d
|
2016-01-11T22:03:16
|
|
Allow JSIMD_FORCENONE=1 env to disable x86-64 SIMD
Traditionally, the x86-64 code did not call init_simd() because it had
no need to (only SSE2 was supported.) However, having the ability to
disable SIMD at run time is a useful testing tool, and all of the other
SIMD implementations have this ability.
|
|
|
2111c5ac
|
2016-01-06T19:24:55
|
|
Merge branch '1.4.x'
|
|
|
5a3b4fed
|
2016-01-06T19:17:54
|
|
Regression: Allow co-install of 32-bit/64-bit RPMs
Fix a regression introduced in 1.4.1 that prevented 32-bit and 64-bit
libjpeg-turbo RPMs from being installed simultaneously on recent Red
Hat/Fedora distributions. This was due to the addition of the
SIZEOF_SIZE_T macro in jconfig.h, which allows the Huffman codec to
determine the word size at compile time. Since that macro differs
between 32-bit and 64-bit builds, this caused a conflict between the
i386 and x86_64 RPMs (any differing files, other than executables, are
not allowed when 32-bit and 64-bit RPMs are installed simultaneously.)
Since the macro is used only internally, it has been moved into
jconfigint.h.
|
|
|
5f2cbbd0
|
2016-01-06T14:02:27
|
|
Fix iOS ARM64 build broken by removal of .arch
The unnecessary .arch directive was removed from the ARM64 SIMD code
in d70a5c12fcb72443483456a2cc8dd18a4c238618, thus allowing clang's
integrated assembler to assemble the code on Linux systems. However,
this broke the detection mechanism in acinclude.m4 that tells the build
system whether it needs to use gas-preprocessor.pl. Since one of the
primary motivators for using gas-preprocessor.pl with ARM64 builds is
the lack of .req/.unreq directives in Apple's implementation of clang,
acinclude.m4 now checks whether .req/.unreq can be properly assembled
and uses gas-preprocessor.pl if not.
Closes #33.
|
|
|
fbe5007f
|
2015-12-19T14:29:46
|
|
Merge branch '1.4.x'
|
|
|
71e971fb
|
2015-12-19T14:18:21
|
|
Build: Use FILEPATH type for NASM CMake variable
This causes cmake-gui to to display the proper file chooser dialog
(as opposed to the directory chooser.)
Fixes #40
|
|
|
6fa5ebdc
|
2015-12-17T10:41:51
|
|
cjpeg: Adjust claims RE: image quality settings
Quality values > 95 are not useless. They just may not provide as good
of a size vs. perceptual quality tradeoff as lower quality values. This
also displays the default quality value in the cjpeg usage.
Closes #39
|
|
|
d70a5c12
|
2015-12-14T16:59:43
|
|
Remove unnecessary .arch directive in ARM64 code
This directive was preventing the code from assembling using the
integrated assembler in clang.
Fixes #33
|
|
|
aa769feb
|
2015-10-15T02:25:00
|
|
Fix compiler warnings under Visual C++
A few of these are long-standing, but most were exposed when switching
from INT32 to JLONG.
|
|
|
d65e768b
|
2015-10-14T22:26:25
|
|
Fix additional issues reported by UB sanitizers
Most of these involved overrunning the signed 32-bit JLONG type whenever
building libjpeg-turbo with a 32-bit compiler. These issues are not
believed to represent actual security threats, but eliminating them
makes it easier to detect such threats should they arise in the future.
|
|
|
1e32fe31
|
2015-10-14T17:32:39
|
|
Replace INT32 with a new internal datatype (JLONG)
These days, INT32 is a commonly-defined datatype in system headers. We
cannot eliminate the definition of that datatype from jmorecfg.h, since
the INT32 typedef has technically been part of the libjpeg API since
version 5 (1994.) However, using INT32 internally is risky, because the
inclusion of a particular header (Xmd.h, for instance) could change the
definition of INT32 from long to int on 64-bit platforms and thus change
the internal behavior of libjpeg-turbo in unexpected ways (for instance,
failing to correctly set __INT32_IS_ACTUALLY_LONG to match the INT32
typedef-- perhaps as a result of including the wrong version of
jpeglib.h-- could cause libjpeg-turbo to produce incorrect results.)
The library has always been built in environments in which INT32 is
effectively long (on Windows, long is always 32-bit, so effectively it's
the same as int), so it makes sense to turn INT32 into an explicitly
long datatype. This ensures that libjpeg-turbo will always behave
consistently, regardless of the headers included at compile time.
Addresses a concern expressed in #26.
|
|
|
250c8877
|
2015-10-13T13:37:32
|
|
ChangeLog: acknowledge existence of 1.4.2
|
|
|
e42032ba
|
2015-10-10T10:56:58
|
|
README.md: create link for jcstest.c
|
|
|
17de5183
|
2015-10-10T10:34:55
|
|
Markdown versions of README, LICENSE, BUILDING
|
|
|
7e3acc0e
|
2015-10-10T10:25:46
|
|
Rename README, LICENSE, BUILDING text files
The IJG README file has been renamed to README.ijg, in order to avoid
confusion (many people were assuming that that was our project's README
file and weren't reading README-turbo.txt) and to lay the groundwork for
markdown versions of the libjpeg-turbo README and build instructions.
|
|
|
ac85335c
|
2015-10-09T20:03:59
|
|
Merge branch '1.4.x'
|
|
|
bf04316e
|
2015-10-09T20:02:31
|
|
Comment formatting tweaks
|
|
|
d8da49ef
|
2015-09-21T13:45:45
|
|
Fix 'make dist'
|
|
|
30ebafda
|
2015-09-21T13:43:36
|
|
1.4.2
|
|
|
60efb896
|
2015-09-21T13:13:44
|
|
Merge branch '1.4.x'
|
|
|
8e9cef2e
|
2015-09-21T12:57:41
|
|
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.
|
|
|
870b4f28
|
2015-09-16T23:26:13
|
|
Fix ChangeLog numbering biffed by previous merge
|
|
|
b961f0bf
|
2015-09-16T23:16:38
|
|
Merge branch '1.4.x'
|
|
54792ba3
|
2015-09-16T23:05:46
|
|
Fix MIPS DSPr2 4:2:0 upsample bug w/ small images
The DSPr2 code was errantly comparing the residual (t9, width & 0xF)
with the end pointer (t4, out + width) instead of the width directly
(a1). This would give the wrong results with any image whose output
width was less than 16. The other small changes (ulw to lw and removal
of the nop) are just some easy optimizations around this code.
This issue caused a buffer overrun and subsequent segfault on images
whose scaled output height was 1 pixel and whose scaled output width was
< 16 pixels. Note that the "plain" (non-fancy and non-merged) upsample
routine, which was affected by this bug, is normally not used except
when decompressing a non-YCbCr JPEG image, but it is also used when
decompressing a single-row image (because the other upsampling
algorithms require at least two rows.)
Closes #16.
|
|
498d9bc9
|
2015-09-15T11:57:03
|
|
Fix x86-64 ABI conformance issue in SIMD code
(descriptions cribbed by DRC from discussion in #20)
In the x86-64 ABI, the high (unused) DWORD of a 32-bit argument's
register is undefined, so it was incorrect to use a 64-bit mov
instruction to transfer a JDIMENSION argument in the 64-bit SSE2 SIMD
functions. The code worked thus far only because the existing compiler
optimizers weren't smart enough to do anything else with the register in
question, so the upper 32 bits happened to be all zeroes-- for the past
6 years, on every x86-64 compiler previously known to mankind.
The bleeding-edge Clang/LLVM compiler has a smarter optimizer, and
under certain circumstances, it will attempt to load-combine adjacent
32-bit integers from one of the libjpeg structures into a single 64-bit
integer and pass that 64-bit integer as a 32-bit argument to one of the
SIMD functions (which is allowed by the ABI, since the upper 32 bits of
the 32-bit argument's register are undefined.) This caused the
libjpeg-turbo regression tests to crash.
Also enhance the documentation of JDIMENSION to explain that its size
is significant to the implementation of the SIMD code.
Closes #20. Refer also to http://crbug.com/532214.
|
|
|
b4922b42
|
2015-09-08T19:02:18
|
|
Merge branch '1.4.x'
|
|
|
465a9fe0
|
2015-09-08T18:59:37
|
|
Add file that explains the libjpeg-turbo licenses
Previously this information was found in a page on libjpeg-turbo.org,
but there was still some confusion, because README-turbo.txt wasn't
clear as to which license applied to what.
|
|
|
00d82c42
|
2015-08-29T18:15:25
|
|
Merge branch '1.4.x'
|
|
|
b5a55e6d
|
2015-08-29T18:05:43
|
|
Fix negative shift with IFAST FDCT and qual=100
With certain images, compressing using quality=100 and the fast integer
forward DCT will cause the divisor passed to compute_reciprocal() to be
1. In those cases, the library already disables the SIMD quantization
algorithm to avoid 16-bit overflow. However, compute_reciprocal()
doesn't properly handle the divisor==1 case, so we need to use special
values in that case so that the C quantization algorithm will behave
like an identity function.
|
|
|
f62dbccf
|
2015-08-15T13:30:14
|
|
Fix build error when compiling MIPS SIMD w/ -mfpxx
When compiled with -mfpxx (which is now the default on Debian), there are
some restrictions on the use of odd-numbered FP registers. More details
about FPXX can be found here:
https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking
This commit simply changes all uses of FP registers to an even-numbered
equivalent like this:
f0 -> f0
f1 -> f2
f2 -> f4
...
f8 -> f16
This commit should have no observable effect except that the MIPS assembly
will now compile with -mfpxx.
Closes #11
|
|
|
b6576319
|
2015-08-26T20:31:13
|
|
Merge branch '1.4.x'
|
|
|
58ae401e
|
2015-08-26T20:29:36
|
|
Eliminate cppcheck false positive in turbojpeg.c
|
|
|
333f3cf7
|
2015-08-15T17:04:58
|
|
Fix 'make dist'
|
|
|
73befdb1
|
2015-08-14T11:48:05
|
|
Merge branch '1.4.x'
|
|
6709e4a0
|
2014-12-29T19:42:20
|
|
Check range of integer values in PPM text file
Add checks to ensure values are within the specified range.
Fixes mozilla/mozjpeg#141, closes #8
|
|
|
82923eb9
|
2014-12-29T18:38:36
|
|
Check image size when reading targa file
Throw an error when image width or height is 0.
Fixes mozilla/mozjpeg#140, closes #7.
|
|
|
a3ef34c6
|
2015-08-13T11:09:05
|
|
Fix cjpeg segfault when Windows BMP width/height<0
rdbmp.c used the ambiguous INT32 datatype, which is sometimes typedef'ed
to long. Windows bitmap headers use 32-bit signed integers for the
width and height, because height can sometimes be negative (this
indicates a top-down bitmap.) If biWidth or biHeight was negative and
INT32 was a 64-bit long, then biWidth and biHeight were read as a
positive integer > INT32_MAX, which failed the test in line 385:
if (biWidth <= 0 || biHeight <= 0)
ERREXIT(cinfo, JERR_BMP_EMPTY);
This commit refactors rdbmp.c so that it uses the datatypes specified by
Microsoft for the Windows BMP header.
This closes #9 and also provides a better solution for mozilla/mozjpeg#153.
|
|
|
6fa14b37
|
2015-08-13T20:06:03
|
|
Declare source buffers in TurboJPEG C API as const
This reassures the caller that the buffers will not be modified and also
allows read-only buffers to be passed to the functions.
Partially reverts 3947a19f25fc8186d3812dbcf8e70baea36ef652.
|
|
|
ce4ff407
|
2015-08-13T18:09:20
|
|
Merge branch '1.4.x'
|
|
|
b1682fb7
|
2015-08-13T18:05:32
|
|
Tabs to spaces in turbojpeg.h
This was a formatting regression in 1.4.x introduced when the new
TurboJPEG functions were added.
|
|
b2db23c4
|
2015-08-13T16:51:08
|
|
Merge pull request #10 from pornel/const
Declare inbuffer arg in jpeg_mem_src() to be const
This reassures the caller that the buffer will not be modified and also
allows read-only buffers to be passed to the function.
|
|
7222ec27
|
2015-01-08T00:53:31
|
|
Declare inbuffer const
|
|
|
8fb37b81
|
2015-08-13T11:09:05
|
|
Fix cjpeg segfault when Windows BMP width/height<0
rdbmp.c used the ambiguous INT32 datatype, which is sometimes typedef'ed
to long. Windows bitmap headers use 32-bit signed integers for the
width and height, because height can sometimes be negative (this
indicates a top-down bitmap.) If biWidth or biHeight was negative and
INT32 was a 64-bit long, then biWidth and biHeight were read as a
positive integer > INT32_MAX, which failed the test in line 385:
if (biWidth <= 0 || biHeight <= 0)
ERREXIT(cinfo, JERR_BMP_EMPTY);
This commit refactors rdbmp.c so that it uses the datatypes specified by
Microsoft for the Windows BMP header.
This closes #9 and also provides a better solution for mozilla/mozjpeg#153.
|
|
|
b3b3b29e
|
2015-08-03T23:59:27
|
|
Update x86[-64] assembler recommendations
NASM 2.11.08 has a bug that prevents it from properly assembling a
macho64 version of libjpeg-turbo (the resulting binary generates corrupt
images.) 2.11.09 works properly. YASM also works properly and has been
a supported alternative since libjpeg-turbo 1.2.
|
|
|
7170d9e0
|
2015-08-03T23:59:12
|
|
Update x86[-64] assembler recommendations
NASM 2.11.08 has a bug that prevents it from properly assembling a
macho64 version of libjpeg-turbo (the resulting binary generates corrupt
images.) 2.11.09 works properly. YASM also works properly and has been
a supported alternative since libjpeg-turbo 1.2.
|
|
|
57e20666
|
2015-08-03T23:58:40
|
|
Update x86[-64] assembler recommendations
NASM 2.11.08 has a bug that prevents it from properly assembling a
macho64 version of libjpeg-turbo (the resulting binary generates corrupt
images.) 2.11.09 works properly. YASM also works properly and has been
a supported alternative since libjpeg-turbo 1.2.
|
|
|
939e4660
|
2015-08-03T23:56:09
|
|
Update x86[-64] assembler recommendations
NASM 2.11.08 has a bug that prevents it from properly assembling a
macho64 version of libjpeg-turbo (the resulting binary generates corrupt
images.) 2.11.09 works properly. YASM also works properly and has been
a supported alternative since libjpeg-turbo 1.2.
|
|
|
7c726a45
|
2015-08-03T13:18:43
|
|
Update URL for our custom gas-preprocessor.pl
|
|
|
a61fd321
|
2015-08-03T13:16:21
|
|
Update URL for our custom gas-preprocessor.pl
|
|
|
944aa8e3
|
2015-07-21T16:43:39
|
|
Fix rare bug: right shift by a negative # of bits
Under very rare circumstances, decompressing specific corrupt JPEG
images would create a situation whereby GET_BITS(1) was invoked
from within HUFF_DECODE_FAST() when bits_left=0. This produced a right
shift by a negative number of bits, which is undefined in C.
|
|
|
2a0b4ac3
|
2015-07-21T16:43:39
|
|
Fix rare bug: right shift by a negative # of bits
Under very rare circumstances, decompressing specific corrupt JPEG
images would create a situation whereby GET_BITS(1) was invoked
from within HUFF_DECODE_FAST() when bits_left=0. This produced a right
shift by a negative number of bits, which is undefined in C.
|
|
|
cf0e58de
|
2015-07-21T16:43:39
|
|
Fix rare bug: right shift by a negative # of bits
Under very rare circumstances, decompressing specific corrupt JPEG
images would create a situation whereby GET_BITS(1) was invoked
from within HUFF_DECODE_FAST() when bits_left=0. This produced a right
shift by a negative number of bits, which is undefined in C.
|
|
a2e6a9dd
|
2006-02-04T00:00:00
|
|
IJG R6b with x86SIMD V1.02
Independent JPEG Group's JPEG software release 6b
with x86 SIMD extension for IJG JPEG library version 1.02
|
|
489583f5
|
1996-02-07T00:00:00
|
|
The Independent JPEG Group's JPEG software v6a
|
|
|
bc79e068
|
1995-08-02T00:00:00
|
|
The Independent JPEG Group's JPEG software v6
|
|
|
a8b67c4f
|
1995-03-15T00:00:00
|
|
The Independent JPEG Group's JPEG software v5b
|
|
|
9ba2f5ed
|
1994-12-07T00:00:00
|
|
The Independent JPEG Group's JPEG software v5a
|
|
|
36a4cccc
|
1994-09-24T00:00:00
|
|
The Independent JPEG Group's JPEG software v5
|
|
|
cc7150e2
|
1993-02-18T00:00:00
|
|
The Independent JPEG Group's JPEG software v4a
|
|
|
88aeed42
|
1992-12-10T00:00:00
|
|
The Independent JPEG Group's JPEG software v4
|
|
|
4a6b7303
|
1992-03-17T00:00:00
|
|
The Independent JPEG Group's JPEG software v3
|
|
|
bd543f03
|
1991-12-13T00:00:00
|
|
The Independent JPEG Group's JPEG software v2
|
|
|
2cbeb8ab
|
1991-10-07T00:00:00
|
|
The Independent JPEG Group's JPEG software v1
|
|
b6590d67
|
2015-07-28T09:19:13
|
|
Convert the BUILD stamp to AC_ARG_WITH argument, so we can make the build reproducible
|
|
|
8c4c6d29
|
2015-07-27T03:50:34
|
|
Convert svn:ignore properties to .gitignore
|
|
|
9a2a42d8
|
2015-07-27T03:50:34
|
|
Convert svn:ignore properties to .gitignore
|
|
|
22eb6c2b
|
2015-07-27T03:50:34
|
|
Convert svn:ignore properties to .gitignore
|
|
|
9993410e
|
2015-07-27T03:50:34
|
|
Convert svn:ignore properties to .gitignore
|
|
|
b3b9a213
|
2015-07-27T03:50:34
|
|
Convert svn:ignore properties to .gitignore
|
|
|
9bbf2b85
|
2015-07-28T12:56:16
|
|
Merge pull request #4 from oerdnj/master
Allow BUILD to be specified on the configure command line
|
|
|
45a2369b
|
2015-07-28T09:19:13
|
|
Convert the BUILD stamp to AC_ARG_WITH argument, so we can make the build reproducible
|
|
1e247ac8
|
1998-03-28T00:00:00
|
|
The Independent JPEG Group's JPEG software v6b with arithmetic coding support
|
|
5829cb23
|
2012-01-15T00:00:00
|
|
The Independent JPEG Group's JPEG software v8d
|
|
c39ec149
|
2011-01-16T00:00:00
|
|
The Independent JPEG Group's JPEG software v8c
|
|
|
a4ecaacd
|
2010-05-16T00:00:00
|
|
The Independent JPEG Group's JPEG software v8b
|
|
|
f18f81b7
|
2010-02-28T00:00:00
|
|
The Independent JPEG Group's JPEG software v8a
|
|
|
989630f7
|
2010-01-10T00:00:00
|
|
The Independent JPEG Group's JPEG software v8
|
|
|
5996a25e
|
2009-06-27T00:00:00
|
|
The Independent JPEG Group's JPEG software v7
|
|
|
5ead57a3
|
1998-03-27T00:00:00
|
|
The Independent JPEG Group's JPEG software v6b
|
|
|
99f02896
|
2015-07-27T03:50:34
|
|
Convert svn:ignore properties to .gitignore
|
|
|
03e755bb
|
2015-07-21T17:36:18
|
|
Further improvements to partial image decoding
When using context-based upsampling, use a dummy color conversion
routine instead of a dummy row buffer. This improves performance
(since the actual color conversion routine no longer has to be called),
and it also fixes valgrind errors when decompressing to RGB565.
Valgrind previously complained, because using the RGB565 color
converter with the dummy row buffer was causing a table lookup with
undefined indices.
|
|
|
74b9f609
|
2015-07-21T16:43:39
|
|
Fix rare bug: right shift by a negative # of bits
Under very rare circumstances, decompressing specific corrupt JPEG
images would create a situation whereby GET_BITS(1) was invoked
from within HUFF_DECODE_FAST() when bits_left=0. This produced a right
shift by a negative number of bits, which is undefined in C.
|
|
|
739edeb8
|
2015-07-21T09:34:02
|
|
Further exception cleanup
Use a new checked exception type (TJException) when passing through
errors from the underlying C library. This gives the application a
choice of catching all exceptions or just those from TurboJPEG.
Throw IllegalArgumentException at the JNI level when arguments to the
JNI function are incorrect, and when one of the TurboJPEG "utility"
functions returns an error (because, per the C API specification, those
functions will only return an error if one of their arguments is out of
range.)
Remove "throws Exception" from the signature of any methods that no
longer pass through an error from the TurboJPEG C library.
Credit Viktor for the new code
Code formatting tweaks
|
|
a3deac15
|
2015-07-14T20:51:53
|
|
Fix build whenever IDCT_SCALING_SUPPORTED is undefined
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.4.x@1597 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
10dc5cfe
|
2015-07-14T20:51:20
|
|
Fix build whenever IDCT_SCALING_SUPPORTED is undefined
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1596 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
b3817dab
|
2015-07-14T20:42:52
|
|
Throw idiomatic unchecked exceptions from the Java classes and JNI wrapper if there is an unrecoverable error caused by incorrect API usage (such as illegal arguments, etc.), and throw Errors if there is an unrecoverable error at the C level (such as a failed malloc() call.)
Change the behavior of the bailif0() macro in the JNI wrapper so that it doesn't throw an exception for an unexpected NULL condition. In fact, in all cases, the underlying JNI API function (such as GetFieldID(), etc.) will throw an Error on its own whenever it returns NULL, so our custom exceptions were never being thrown in that case anyhow. All we need to do is just detect the error and bail out of the C code.
This also corrects a couple of formatting issues (semicolons aren't needed at the end of class definitions, and @Override should be specified for the methods we're overriding from super-classes, so the compiler can sanity-check that we're actually overriding a method and not declaring a new one.)
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1595 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
1a4778f8
|
2015-07-07T16:39:03
|
|
Allow TJCompressor and TJDecompressor to be used with a try-with-resources statement in Java 7 and later.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1594 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
c23e36e8
|
2015-07-06T16:04:04
|
|
Add additional protections against defining INT32 if another header has already defined it (code borrowed from libjpeg v8.) This isn't necessary when using the libjpeg-turbo build system on Windows, because the CMake generated jconfig.h defines INT32 and then defines XMD_H to trick jmorecfg.h into not redefining it. However, some projects build libjpeg-turbo using their own build systems.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.4.x@1593 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
65c5ec2f
|
2015-07-06T16:02:57
|
|
Add additional protections against defining INT32 if another header has already defined it (code borrowed from libjpeg v8.) This isn't necessary when using the libjpeg-turbo build system on Windows, because the CMake generated jconfig.h defines INT32 and then defines XMD_H to trick jmorecfg.h into not redefining it. However, some projects build libjpeg-turbo using their own build systems.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1592 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
9cc59722
|
2015-07-01T16:56:44
|
|
Fix a memory leak in jpeg_skip_scanlines()
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1591 632fc199-4ca6-4c93-a231-07263d6284db
|
|
|
6ed4d9d1
|
2015-06-27T08:10:34
|
|
Increment SO_AGE to reflect the addition of a new interface to the libjpeg API
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1590 632fc199-4ca6-4c93-a231-07263d6284db
|