Set the BUILD environment variable properly when building with MinGW implementations that lack a Unix shell (TDM-GCC, for instance); Only set CMP0022 if it is supported (older CMake implementations don't support it); Remove trailing spaces
Set the BUILD environment variable properly when building with MinGW implementations that lack a Unix shell (TDM-GCC, for instance); Only set CMP0022 if it is supported (older CMake implementations don't support it); Remove trailing spaces
DRC [Fri, 28 Mar 2014 18:50:30 +0000 (18:50 +0000)]
Integrate a slightly modified version of Mozilla's patch for precomputing the bit-counting LUT. This is useful if the table needs to be shared among multiple processes, although the primary reason for doing that is reduced footprint on mobile devices, which are probably already covered by the clz intrinsic code.
DRC [Thu, 27 Mar 2014 20:47:39 +0000 (20:47 +0000)]
Modify svn:ignore so that it lists only files generated in-tree by autoreconf -fiv. It's pretty much impossible to maintain an up-to-date list of files generated by the actual build, so we'll just assume that the user will do an out-of-tree build if they want to avoid cluttering up their 'svn status' display.
DRC [Thu, 27 Mar 2014 20:43:57 +0000 (20:43 +0000)]
Modify svn:ignore so that it lists only files generated in-tree by autoreconf -fiv. It's pretty much impossible to maintain an up-to-date list of files generated by the actual build, so we'll just assume that the user will do an out-of-tree build if they want to avoid cluttering up their 'svn status' display.
DRC [Thu, 27 Mar 2014 03:36:04 +0000 (03:36 +0000)]
Make iOS build instructions more generic and applicable to all versions of Xcode; modify iOS build procedure for Xcode 5.0 and later to fix a build issue with Xcode 5.1.
DRC [Thu, 27 Mar 2014 03:35:21 +0000 (03:35 +0000)]
Make iOS build instructions more generic and applicable to all versions of Xcode; modify iOS build procedure for Xcode 5.0 and later to fix a build issue with Xcode 5.1.
DRC [Sun, 23 Mar 2014 18:06:11 +0000 (18:06 +0000)]
Remove any claims of support for OS X 10.4 "Tiger" (the packaging system overhaul produces packages that require Leopard or later, and I haven't been able to test Tiger for years anyhow.) Update TurboJPEG shared library version.
DRC [Sun, 23 Mar 2014 15:21:20 +0000 (15:21 +0000)]
Remove the sections about replacing libjpeg at run time and compile time. These were written before O/S distributions started shipping libjpeg-turbo, and they are either pedantic or no longer relevant. Also remove any text that assumes the use of our official project binaries. Notes specific to the official binaries have been moved into the project wiki.
DRC [Sat, 22 Mar 2014 20:51:38 +0000 (20:51 +0000)]
Since we're now maintaining our own Cygwin pseudo-repository directories instead of recommending that users install these packages from a local source, it makes more sense to name the packages according to Cygwin specs, so they can be copied as-is into the pseudo-repository.
DRC [Fri, 21 Mar 2014 23:34:53 +0000 (23:34 +0000)]
Since we're now maintaining our own Cygwin pseudo-repository directories instead of recommending that users install these packages from a local source, it makes more sense to name the packages according to Cygwin specs, so they can be copied as-is into the pseudo-repository.
DRC [Fri, 21 Mar 2014 11:01:00 +0000 (11:01 +0000)]
RHEL 6 (and probably other platforms as well) sets _defaultdocdir=%{_datadir}/doc, which screws things up, since we're overriding _datadir. Since we intend _defaultdocdir to be /usr/share/doc, just be explicit about it.
DRC [Fri, 21 Mar 2014 11:00:00 +0000 (11:00 +0000)]
RHEL 6 (and probably other platforms as well) sets _defaultdocdir=%{_datadir}/doc, which screws things up, since we're overriding _datadir. Since we intend _defaultdocdir to be /usr/share/doc, just be explicit about it.
DRC [Mon, 17 Mar 2014 11:14:52 +0000 (11:14 +0000)]
Extend YUVImage class to allow reuse of the same buffer with different metadata; port TJBench changes that treat YUV encoding/decoding as an intermediate step of the JPEG compression/decompression pipeline rather than a separate test case; add YUV encode/decode tests to the Java version of tjbenchtest
DRC [Mon, 17 Mar 2014 10:13:17 +0000 (10:13 +0000)]
Move the garbage collection of the JPEG tiles into the decompression function to increase the chances that tiled decompression of large images will succeed without an OutOfMemoryError.
DRC [Mon, 17 Mar 2014 10:12:11 +0000 (10:12 +0000)]
Move the garbage collection of the JPEG tiles into the decompression function to increase the chances that tiled decompression of large images will succeed without an OutOfMemoryError.
DRC [Sun, 16 Mar 2014 22:56:26 +0000 (22:56 +0000)]
Extend the YUV decode functionality to the TurboJPEG Java API, and port the TJUnitTest modifications that treat YUV encoding/decoding as an intermediate step of the JPEG compression/decompression pipeline rather than a separate test case; Add the ability to encode YUV images from an arbitrary position in a large image buffer; Significantly refactor the handling of YUV images; numerous doc tweaks; other Java API cleanup and usability improvements
DRC [Sat, 15 Mar 2014 13:25:11 +0000 (13:25 +0000)]
Add @Deprecated to the deprecated Java methods, so javac will actually print deprecation warnings, as opposed to just listing the methods as deprecated in javadoc; remove the use of the deprecated methods by our own test programs.
DRC [Sat, 15 Mar 2014 08:48:53 +0000 (08:48 +0000)]
As with tjDecompressToYUV*(), tjCompressFromYUV() also conditionally uses an intermediate buffer if the source image dimensions do not fall on MCU boundaries.
DRC [Fri, 14 Mar 2014 08:53:33 +0000 (08:53 +0000)]
Streamline the BufferedImage functionality in the compressor so that it works the same way as compressing a "normal" image, and deprecate the old BufferedImage methods and other redundant methods. Eliminate the use of deprecated features in the test programs.
DRC [Fri, 14 Mar 2014 04:32:03 +0000 (04:32 +0000)]
Remove benchmarks. They were originally intended as a way of measuring overhead for small compress/decompress operations, but using TJBench with a small image is a better way to accomplish that.
DRC [Thu, 13 Mar 2014 21:19:12 +0000 (21:19 +0000)]
Actually, the issue with nightshot_iso_100 is unrelated to the image size. Reducing the size to 128x95, the same size as vgl_6548_0026, does not eliminate the problem. The issue seems to always occur when decompression scaling is enabled. It is unclear at this point whether this is a bug or expected behavior, but the pixels generated by the split decompression functions appear correct. They are just slightly different (but not visibly so) from the pixels generated by the monolithic decompression function.
DRC [Thu, 13 Mar 2014 20:33:43 +0000 (20:33 +0000)]
If we have transformed a 4:2:2 or 4:4:0 image in any way that transposes the horizontal and vertical dimensions, then we need to inform the decompression function that the subsampling type has changed. Otherwise, tjDecodeYUV() will not produce correct results.
DRC [Wed, 12 Mar 2014 06:51:39 +0000 (06:51 +0000)]
Since we now have a complete set of YUV functions, TJBench can be greatly simplified. It now tests YUV encoding/decoding as an intermediate step of JPEG compression/decompression, which eliminates the need for a separate YUV mode. Several other things have been streamlined in the process.
DRC [Tue, 11 Mar 2014 08:28:47 +0000 (08:28 +0000)]
Back-port the -subsamp option from 1.4 rather than use the hackish approach of replacing 4:2:2 with 4:4:0. This has the added advantage of allowing the user to test only a specific level of subsampling.
DRC [Tue, 11 Mar 2014 06:24:46 +0000 (06:24 +0000)]
Fix the build of the Java classes when using MSVC 2010 and later. Something in the recesses of my brain is telling me that I tried this before and it failed under some circumstances, but it must have been a bug in an older CMake implementation. CMake 2.8.8 and later seem to work fine with this patch. This patch also updates the minimum required version to 2.8.8, because 2.8.8 fixed another issue that was preventing the SIMD code from building under MSVC 2010 and later.
DRC [Tue, 11 Mar 2014 06:21:46 +0000 (06:21 +0000)]
Fix the build of the Java classes when using MSVC 2010 and later. Something in the recesses of my brain is telling me that I tried this before and it failed under some circumstances, but it must have been a bug in an older CMake implementation. CMake 2.8.8 and later seem to work fine with this patch. This patch also updates the minimum required version to 2.8.8, because 2.8.8 fixed another issue that was preventing the SIMD code from building under MSVC 2010 and later.
DRC [Mon, 10 Mar 2014 20:14:53 +0000 (20:14 +0000)]
For now, punt on trying to support fancy upsampling in tjDecodeYUV(). Fancy upsampling requires context rows and other refinements, which are difficult to implement correctly with the algorithm we're using. Longer-term, supporting fancy upsampling would probably require using the main buffer that libjpeg allocates.
DRC [Mon, 10 Mar 2014 09:34:04 +0000 (09:34 +0000)]
When tjDecodeYUV() is used with a "fresh" decompressor instance (one that hasn't been previously used to decompress a JPEG image), then it needs comps_in_scan, data_precision, and the quantization tables to be defined. This patch also extends TJUnitTest to check for this error.
DRC [Sat, 8 Mar 2014 20:50:35 +0000 (20:50 +0000)]
Silence valgrind false positives about uninitialized values. Even with this patch, valgrind still complains about uninitialized values when decompressing or decoding to a buffer with an alpha-enabled colorspace. Not sure why this happens, but it occurs in libjpeg-turbo 1.3 as well, and only when the x86/x86-64 SIMD code is being used. It is my belief that these remaining warnings are also false positives, because if the output buffer is memset to all 0's prior to invoking tjDecodeYUV()/tjDecompress(), no errors are reported. If any of the alpha channel bits were in fact not being initialized, then they would still be 0 after invoking tjDecodeYUV()/tjDecompress(), and TJUnitTest would report an error.
DRC [Fri, 7 Mar 2014 03:52:57 +0000 (03:52 +0000)]
Go ahead and call jinit_master_decompress() rather than trying to reproduce its functionality. That function does a few things that we were missing, including allocating the range limit table used by the plain C color conversion code.
DRC [Fri, 28 Feb 2014 09:06:42 +0000 (09:06 +0000)]
Remove benchmarks. They were originally intended as a way of measuring overhead for small compress/decompress operations, but using TJBench with a small image is a better way to accomplish that.
DRC [Fri, 28 Feb 2014 05:34:02 +0000 (05:34 +0000)]
Remove unused code (the destination manager is not used during YUV encoding, there are no virtual arrays to realize, and jinit_c_prep_controller() is unnecessary because we are not using smoothing.)
DRC [Fri, 28 Feb 2014 05:27:55 +0000 (05:27 +0000)]
Remove unused code (the destination manager is not used during YUV encoding, there are no virtual arrays to realize, and jinit_c_prep_controller() is unnecessary because we are not using smoothing.)
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