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Author SHA1 Message Date
DRC
1dbceb51c9 ARM64 NEON SIMD support for YCC-to-RGB565 conversion 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1386 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-23 15:57:38 +00:00
DRC
d166012ae3 ARM NEON SIMD support for YCC-to-RGB565 conversion, and optimizations to the existing YCC-to-RGB conversion code: 
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aee36252be.patch

From aee36252be20054afce371a92406fc66ba6627b5 Mon Sep 17 00:00:00 2001
From: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Date: Wed, 13 Aug 2014 03:50:22 +0300
Subject: [PATCH] ARM: Faster NEON yuv->rgb conversion for Krait and Cortex-A15

The older code was developed and tested only on ARM Cortex-A8 and ARM Cortex-A9.
Tuning it for newer ARM processors can introduce some speed-up (up to 20%).

The performance of the inner loop (conversion of 8 pixels) improves from
~27 cycles down to ~22 cycles on Qualcomm Krait 300, and from ~20 cycles
down to ~18 cycles on ARM Cortex-A15.

The performance remains exactly the same on ARM Cortex-A7 (~58 cycles),
ARM Cortex-A8 (~25 cycles) and ARM Cortex-A9 (~30 cycles) processors.

Also use larger indentation in the source code for separating two independent
instruction streams.

-----

a5efdbf22c.patch

From a5efdbf22ce9c1acd4b14a353cec863c2c57557e Mon Sep 17 00:00:00 2001
From: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Date: Wed, 13 Aug 2014 07:23:09 +0300
Subject: [PATCH] ARM: NEON optimized yuv->rgb565 conversion

The performance of the inner loop (conversion of 8 pixels):
* ARM Cortex-A7:  ~55 cycles
* ARM Cortex-A8:  ~28 cycles
* ARM Cortex-A9:  ~32 cycles
* ARM Cortex-A15: ~20 cycles
* Qualcomm Krait: ~24 cycles

Based on the Linaro rgb565 patch from
    https://sourceforge.net/p/libjpeg-turbo/patches/24/
but implements better instructions scheduling.


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1385 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-23 15:47:51 +00:00
DRC
3eed295c43 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. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1383 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 19:27:28 +00:00
DRC
578c3f67d7 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. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1384 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 19:59:51 +00:00
DRC
19a5f802bc Revert r1335 and r1336. It was a valiant effort, but on Windows, xmm8-xmm15 are non-volatile, and the overhead of pushing them onto the stack at the beginning of each function and popping them at the end was causing worse performance (in the neighborhood of 3-5%) than just using the work areas and limiting the register usage to xmm0-xmm7. Best to leave the SSE2 code alone. We can optimize the register usage for AVX2, once that port takes place. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1382 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 18:30:44 +00:00
DRC
7930a77eaa Don't use sudo when building a Debian package unless the user is non-root 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1381 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 17:21:09 +00:00
DRC
29875d2597 Windows doesn't have setenv(). Go, go Gadget Macros. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1380 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 15:39:32 +00:00
DRC
810aa1f188 1.4 beta1 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1379 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 14:22:00 +00:00
DRC
d0b65844c2 Fix 'make dist' 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1378 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 14:19:12 +00:00
DRC
5c5de61c13 Don't use sudo when building a Debian package unless the user is non-root 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1377 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 14:15:08 +00:00
DRC
004427c071 Add a set of undocumented environment variables and Java system properties that allow compression features of libjpeg that are not normally exposed in the TurboJPEG API to be enabled. These features are not normally exposed because, for the most part, they aren't "turbo" features, but it is still useful to be able to benchmark them without modifying the code. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1376 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 13:43:33 +00:00
DRC
c079546d32 .func/.endfunc are only necessary when generating STABS debug info, which basically went out of style with parachute pants and Rick Astley. At any rate, none of the platforms for which we're building the ARM code use it (DWARF is the common format these days), and the .func/.endfunc directives cause the clang integrated assembler to fail (http://llvm.org/bugs/show_bug.cgi?id=20424). 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1375 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 11:31:46 +00:00
DRC
328e088030 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.) 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1374 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 03:04:06 +00:00
DRC
d37548299f 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. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1373 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 03:00:37 +00:00
DRC
cdeb7db034 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.) 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1372 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 02:57:34 +00:00
DRC
d66dc1084c 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. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1371 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-22 02:51:16 +00:00
DRC
0a8555ea59 Oops 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1370 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 22:16:25 +00:00
DRC
ae9446b98f Subtle point, but dest->outbuffer is a pointer to the address of the JPEG buffer, which is stored in the calling program. Thus, *(dest->outbuffer) will always equal *outbuffer. We need to compare *outbuffer with dest->buffer instead to determine if the pointer is being reused. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1369 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 22:15:19 +00:00
DRC
334b1963f7 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. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1368 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 15:51:47 +00:00
DRC
f63d1609dc Actually, we need to increase the size of BUFSIZE, not just the size of _buffer. The previous patch might have cause problems if, for instance, state->free_in_buffer was 127 but 129 bytes were compressed. In that case, only 127 of the 129 bytes would have been written to the file. Also document the fix. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1367 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 03:40:37 +00:00
DRC
0e5f88dbe1 Actually, we need to increase the size of BUFSIZE, not just the size of _buffer. The previous patch might have cause problems if, for instance, state->free_in_buffer was 127 but 129 bytes were compressed. In that case, only 127 of the 129 bytes would have been written to the file. Also document the fix. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1366 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 03:38:14 +00:00
DRC
c4ac1e2b15 Fix an extremely rare crash that can occur when compressing a very high-frequency MCU using quality 100 and no subsampling, and when dynamically allocating the JPEG buffer in the destination manager. Even with a test program designed specifically to reproduce the crash, it only occurred once in about 25 million iterations. More details here: https://sourceforge.net/p/libjpeg-turbo/bugs/64 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1365 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 01:55:22 +00:00
DRC
4d117e06bc Fix an extremely rare crash that can occur when compressing a very high-frequency MCU using quality 100 and no subsampling, and when dynamically allocating the JPEG buffer in the destination manager. Even with a test program designed specifically to reproduce the crash, it only occurred once in about 25 million iterations. More details here: https://sourceforge.net/p/libjpeg-turbo/bugs/64 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1364 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-21 01:53:47 +00:00
DRC
9c318c0884 Wordsmithing & clarifications 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1363 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-20 16:02:49 +00:00
DRC
25651f6eb5 Document the existence of the new ARM64 SIMD code 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1362 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-20 15:40:43 +00:00
DRC
dfe0538662 Properly detect the need for gas-preprocessor.pl when building for ARM64 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1361 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-20 13:14:46 +00:00
DRC
3d037a5c72 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 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1360 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-17 12:23:49 +00:00
DRC
ef5d1ea229 Make the wrapped functions static 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1359 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 16:40:56 +00:00
DRC
150b5c4a90 Make the wrapped functions static 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1358 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 16:40:34 +00:00
DRC
a86aee5113 Whitespace formatting tweaks 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1357 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 16:20:59 +00:00
DRC
f79cc2214e Allow the int pixel versions of the various TurboJPEG JNI functions to share the same code as the byte pixel versions. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1356 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 16:20:06 +00:00
DRC
948d9d0492 Whitespace formatting tweaks 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1355 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 16:08:12 +00:00
DRC
f58a0d4174 Add descriptions to help sort out which function goes with which version of the API. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1354 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 16:07:15 +00:00
DRC
870d4403eb Add descriptions to help sort out which function goes with which version of the API. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1353 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 15:40:02 +00:00
DRC
e9897e4200 Compiler warnings 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1352 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 14:44:09 +00:00
DRC
0c28bca095 Fix build broken by r1349 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1351 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 14:40:36 +00:00
DRC
efd7674c11 Compiler warnings 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1350 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 14:40:05 +00:00
DRC
c6262663b5 Restore backward compatibility between libjpeg-turbo 1.3.x JAR and the new JNI library 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1349 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 14:01:21 +00:00
DRC
aac7f6575a Allow the int pixel versions of the various TurboJPEG JNI functions to share the same code as the byte pixel versions. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1348 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-15 13:18:58 +00:00
DRC
b94560c4a8 Clean up exception handling in the JNI code. The exception is actually not thrown until the function exits, so we can let the code fall through to bailout: if the TurboJPEG C function fails. Also, per the JNI spec, no other JNI functions can be called between GetPrimitiveArrayCritical() and ReleasePrimitiveArrayCritical(). This hasn't caused any problems thus far, but better safe than sorry. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1347 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-14 17:24:01 +00:00
DRC
4209d3496d Clean up exception handling in the JNI code. The exception is actually not thrown until the function exits, so we can let the code fall through to bailout: if the TurboJPEG C function fails. Also, per the JNI spec, no other JNI functions can be called between GetPrimitiveArrayCritical() and ReleasePrimitiveArrayCritical(). This hasn't caused any problems thus far, but better safe than sorry. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1346 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-14 16:54:04 +00:00
DRC
1475ca8fe2 Oops. Parameter name is "strides", not "stride" 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1345 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-12 15:52:51 +00:00
DRC
f7b5dd1e41 Reformat TurboJPEG C API documentation to improve ease of maintenance and to make it more consistent with the javadoc formatting; fix minor error in tjCompressFromYUV() prototype. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1344 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-12 15:06:30 +00:00
DRC
257745ba05 Extend the TurboJPEG C API to support handling YUV images stored in separate image planes instead of a unified buffer 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1343 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-11 18:05:41 +00:00
DRC
66f830135f Clean up and consolidate notes regarding the YUV image format. This also corrects a factual error regarding the padding of the luminance plane-- because we now support 4:1:1, the component width is not necessarily padded to the nearest multiple of 2 if horizontal subsampling is used. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1342 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-10 20:12:17 +00:00
DRC
ed028a6575 Clean up notes using the doxygen @note command 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1341 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-10 18:30:52 +00:00
DRC
63c66d2131 Clean up notes using the doxygen @note command 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1340 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-10 17:25:51 +00:00
DRC
0b58a07f5e Make the documentation more readable by displaying fixed-width text (which is used to refer to variables and functions) in a different color. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1339 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-10 16:43:31 +00:00
DRC
108f603748 Fix a display issue in the documentation for tjDecompress2() (doxygen treats a star at the beginning of the line as a list bullet); make the documentation more readable by displaying fixed-width text (which is used to refer to variables and functions) in a different color. 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1338 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-10 16:39:32 +00:00
DRC
6304683a66 12-bit JPEG support 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1337 632fc199-4ca6-4c93-a231-07263d6284db
 2014-08-09 23:06:07 +00:00