1. 74b9f60 Fix rare bug: right shift by a negative # of bits by DRC · 9 years ago
  2. 739edeb Further exception cleanup by DRC · 9 years ago
  3. a3deac1 Fix build whenever IDCT_SCALING_SUPPORTED is undefined by DRC · 9 years ago
  4. 10dc5cf Fix build whenever IDCT_SCALING_SUPPORTED is undefined by DRC · 9 years ago
  5. b3817da 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.) by DRC · 9 years ago
  6. 1a4778f Allow TJCompressor and TJDecompressor to be used with a try-with-resources statement in Java 7 and later. by DRC · 9 years ago
  7. c23e36e 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. by DRC · 9 years ago
  8. 5829cb2 The Independent JPEG Group's JPEG software v8d by Guido Vollbeding · 13 years ago
  9. c39ec14 The Independent JPEG Group's JPEG software v8c by Guido Vollbeding · 14 years ago
  10. a4ecaac The Independent JPEG Group's JPEG software v8b by Guido Vollbeding · 14 years ago
  11. f18f81b The Independent JPEG Group's JPEG software v8a by Guido Vollbeding · 15 years ago
  12. 989630f The Independent JPEG Group's JPEG software v8 by Guido Vollbeding · 15 years ago
  13. 5996a25 The Independent JPEG Group's JPEG software v7 by Guido Vollbeding · 15 years ago
  14. 1e247ac The Independent JPEG Group's JPEG software v6b with arithmetic coding support by Guido Vollbeding · 27 years ago
  15. 5ead57a The Independent JPEG Group's JPEG software v6b by Thomas G. Lane · 27 years ago
  16. 489583f The Independent JPEG Group's JPEG software v6a by Thomas G. Lane · 29 years ago
  17. bc79e06 The Independent JPEG Group's JPEG software v6 by Thomas G. Lane · 29 years ago
  18. a8b67c4 The Independent JPEG Group's JPEG software v5b by Thomas G. Lane · 30 years ago
  19. 9ba2f5e The Independent JPEG Group's JPEG software v5a by Thomas G. Lane · 30 years ago
  20. 36a4ccc The Independent JPEG Group's JPEG software v5 by Thomas G. Lane · 30 years ago
  21. cc7150e The Independent JPEG Group's JPEG software v4a by Thomas G. Lane · 32 years ago
  22. 88aeed4 The Independent JPEG Group's JPEG software v4 by Thomas G. Lane · 32 years ago
  23. 4a6b730 The Independent JPEG Group's JPEG software v3 by Thomas G. Lane · 33 years ago
  24. bd543f0 The Independent JPEG Group's JPEG software v2 by Thomas G. Lane · 33 years ago
  25. 2cbeb8a The Independent JPEG Group's JPEG software v1 by Thomas G. Lane · 33 years ago
  26. 65c5ec2 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. by DRC · 9 years ago
  27. 9cc5972 Fix a memory leak in jpeg_skip_scanlines() by DRC · 9 years ago
  28. 6ed4d9d Increment SO_AGE to reflect the addition of a new interface to the libjpeg API by DRC · 9 years ago
  29. 306e1d2 Add jpeg_skip_scanlines() to the Windows DLL export list. by DRC · 9 years ago
  30. 162c998 Fix compiler warnings in jpeg_skip_scanlines() when building under Visual Studio. by DRC · 9 years ago
  31. 7a7da94 Add regression tests for jpeg_skip_scanlines(); change "stripe" to "strip" in djpeg; document -strip and -skip parameters in djpeg by DRC · 9 years ago
  32. ac09954 Fix a couple of seg faults discovered when testing the new jpeg_skip_scanlines() function + remove comment that is no longer relevant. by DRC · 9 years ago
  33. 6a25894 Make sure that Java is disabled when 12-bit is enabled (Java requires TurboJPEG, which currently only supports 8-bit samples), and tabs-->spaces by DRC · 9 years ago
  34. ecc5836 Make sure that Java is disabled when 12-bit is enabled (Java requires TurboJPEG, which currently only supports 8-bit samples), and tabs-->spaces by DRC · 9 years ago
  35. 07afe8a Add a -skip option to djpeg, which opens up further regression testing options. by DRC · 9 years ago
  36. eb32cc1 Add a new libjpeg API function (jpeg_skip_scanlines()) to allow for partially decoding a JPEG image. by DRC · 9 years ago
  37. 691cd93 Fix 'make dist' by DRC · 9 years ago
  38. 54014d9 The Linux build machine has been upgraded to autoconf 2.69, automake 1.15, m4 1.4.17, and libtool 2.4.6, so it is no longer necessary to recommend running autoreconf prior to building the source. by DRC · 9 years ago
  39. 06bf10d Studies show that GCC v5.1.0 performs as well as or better than v4.2, but v4.7.x-v4.9.x do not perform as well as v4.2. by DRC · 9 years ago
  40. 89b5e06 Studies show that GCC v5.1.0 performs as well as or better than v4.2, but v4.7.x-v4.9.x do not perform as well as v4.2. by DRC · 9 years ago
  41. eea6424 Typo by DRC · 9 years ago
  42. 7a8c53e Clarify that the TurboJPEG API functions/methods do not modify the source buffer. by DRC · 9 years ago
  43. db6d8fc Now that the TurboJPEG API is reporting libjpeg warnings as errors, an "Invalid SOS parameters for sequential JPEG" warning surfaced in tjDecodeYUV*(). This was caused by the Se member of jpeg_decompress_struct being set to 0 (it is normally set to a non-zero value when the start-of-scan markers are read, but there are no SOS markers in this case, because we're not actually decompressing a JPEG file.) by DRC · 9 years ago
  44. f15ef33 Fix a segfault that occured in the MIPS DSPr2 fancy upsampling routine when downsampled_width==3. Because the DSPr2 code unrolls the loop for the middle columns (refer to jdsample.c), it has the effect of performing two column iterations, and that only works properly if the number of columns (minus the first and last) is >= 2. For the specific case of downsampled_width==3, this patch skips to the second iteration of the unrolled column loop. by DRC · 9 years ago
  45. 1f79c7c If a warning (such as "Premature end of JPEG file") is triggered in the underlying libjpeg API, make sure that the TurboJPEG API function returns -1. Unlike errors, however, libjpeg warnings do not make the TurboJPEG functions abort. by DRC · 9 years ago
  46. bec45b1 Back out r1555 and r1548. Using setenv() didn't fix the iOS simulator issue. It just replaced an undefined _putenv$UNIX2003 symbol with an undefined _setenv$UNIX2003 symbol. The correct solution seems to be to use -D_NONSTD_SOURCE when generating our official builds. by DRC · 9 years ago
  47. 80bbd39 Fix the Windows build. I remember now why I used putenv() originally-- because Windows doesn't have setenv(). We could use _putenv_s(), but older versions of MinGW don't have that either. Fortunately, since all of the environment values we're setting in turbojpeg.c are static, we can just map setenv() to putenv() using a macro. NOTE: we still have to use _putenv_s() in turbojpeg-jni.c, but at least people who may need to build with an older version of MinGW can still do so by disabling the Java build. by DRC · 9 years ago
  48. 665c96e Allow building only static or only shared libraries on Windows by DRC · 9 years ago
  49. 3ebcc32 __WORDSIZE doesn't seem to be available on platforms other than Mac or Linux, and best practices are for user-level code not to rely on it anyhow, since it's meant to be an internal macro. Fortunately, autoconf already has a way of determining the word size at configure time, so it can be passed into the compiler. This should work on any platform and has been tested on all of the Un*x platforms we support (Linux, Mac, FreeBSD, Solaris.) by DRC · 9 years ago
  50. 44320a2 Unless you define _ANSI_SOURCE, then putenv() on Mac is renamed to putenv$UNIX2003(), and this causes problems when trying to link an i386 iOS application (for the simulator) against the TurboJPEG static library. It's easiest to just use setenv() instead. by DRC · 9 years ago
  51. a8b6ea2 Fix a bug in the 64-bit Huffman encoder that Google discovered when encoding some very specific (and proprietary) aerial images using quality=98, an optimized Huffman table, and the ISLOW DCT. These images were causing the Huffman bit buffer to overflow, because the code for encoding the DC coefficient was using the equivalent of the 32-bit version of EMIT_BITS(). Thus, when 64-bit code was used, the DC coefficient code was not properly checking how many bits were in the buffer before attempting to add more bits to it. This issue appears to have existed in all versions of libjpeg-turbo. by DRC · 9 years ago
  52. 96869f4 Restore backward compatibility with MSVC < 2010 (broken by r1541) by DRC · 9 years ago
  53. f64b36f Oops. OS X doesn't define __WORDSIZE unless you include stdint.h, so apparently the Huffman codec hasn't ever been fully accelerated on 64-bit OS X. by DRC · 9 years ago
  54. 89a3f97 Allow the executables and libraries outside of the sharedlib/ directory to be linked against msvcr*.dll instead of libcmt*.lib. This is reported to be necessary when building libjpeg-turbo for use with C#. by DRC · 10 years ago
  55. feccdcf Surround the usage of getenv() in the TurboJPEG API with #ifndef NO_GETENV so that developers can add -DNO_GETENV to the C flags when building for platforms that don't have getenv(). Currently this is known to be necessary when building for Windows Phone. by DRC · 10 years ago
  56. c69a1cd If libjpeg-turbo is configured with a non-default prefix, such as /usr, then use the docdir variable defined by autoconf 2.60 and later, if available. This will, for instance, install the documentation under /usr/share/doc/libjpeg-turbo by default if prefix=/usr, unless docdir is overridden. When using earlier versions of autoconf, docdir is set to ${datadir}/doc, as it always has been. by DRC · 10 years ago
  57. 3b7015d Enable silent build rules for the NASM objects, if the source is configured with automake 1.11 or later. NOTE: the build still spits out "error: ignoring unknown tag NASM" for each object, but unfortunately, if we remove "--tag NASM" from the command line, the build breaks under older versions of automake (it aborts with "unable to infer tagged configuration.") by DRC · 10 years ago
  58. cab2a85 Set the RPM and deb architecture properly on non-x86 platforms. by DRC · 10 years ago
  59. 771ab19 Extend the AltiVec VMX SIMD routines to support little endian PowerPC platforms. by DRC · 10 years ago
  60. eb319ed Come on, Cohaagen, you got what you want. Give these people air! by DRC · 10 years ago
  61. 3f76083 Come on, Cohaagen, you got what you want. Give these people air! by DRC · 10 years ago
  62. 2e42909 Oops. Need to set the alpha channel when using TYPE_4BYTE_ABGR*. This has no bearing on the actual tests, but it prevents the PNG pre-encode reference images for those tests from being blank. by DRC · 10 years ago
  63. dcf9f15 Oops. Need to set the alpha channel when using TYPE_4BYTE_ABGR*. This has no bearing on the actual tests, but it prevents the PNG pre-encode reference images for those tests from being blank. by DRC · 10 years ago
  64. 8b5a009 Oops. The MIPS SIMD implementations of h2v1 and h2v2 upsampling were not checking for DSPr2 support, so running 'djpeg -nosmooth' on a non-DSPr2-enabled platform caused an "illegal instruction" error. by DRC · 10 years ago
  65. 0e94025 Introduce fast paths to speed up NULL color conversion somewhat, particularly when using 64-bit code; on the decompression side, the "slow path" also now use an approach similar to that of the compression side (with the component loop outside of the column loop rather than inside.) This is faster when using 32-bit code. by DRC · 10 years ago
  66. c60d662 Some clarifications (actually MIPS doesn't implement the float DCT/IDCT using SIMD instructions) by DRC · 10 years ago
  67. 3af282d Make the floating point regression tests optional. It has been known for quite some time that these tests do not always generate the same results unless there is full SIMD coverage of the floating point algorithms in libjpeg-turbo. Further research reveals that there are basically three expected results: the results from our SSE SIMD extensions (which are slightly more accurate than the C code), results from the C code when running on a 32-bit FPU (or when using SSE instructions on an x86-64 CPU, which is the default with GCC), and results from the C code when running on a 64-bit FPU (which presumably uses double-precision arithmetic by default.) There is basically no way to determine which type of math will be used prior to run time, so it's best to just let the developers specify which result they expect on their particular system. by DRC · 10 years ago
  68. dd7f03b In the process of developing the AltiVec extensions, it was discovered that the normal regression tests aren't sufficient to test the behavior of the library with very small image sizes and when compressing from/decompressing to a subregion of a larger image buffer. Thus, an additional regression test was added that takes advantage of the tiled compression/decompression feature in tjbench. This is being back-ported to the 1.4.x branch primarily to verify that there are no lingering issues in the existing SIMD extensions. by DRC · 10 years ago
  69. cbc4b53 Add separate pseudo-targets for the TurboJPEG and libjpeg regression tests, for those times when you just don't want to sit through 11 iterations of TJUnitTest to find out that your algorithm is broken. by DRC · 10 years ago
  70. ffd9d05 Bump copyright year by DRC · 10 years ago
  71. cbc9970 Add the ability to benchmark YCCK JPEG compression/decompression. This is particularly useful since that is the only way to test the performance of the "plain" upsampling routines, which are accelerated on some platforms. by DRC · 10 years ago
  72. 2b7a391 1.4.1 by DRC · 10 years ago
  73. 2e2ea8e Document AltiVec extensions by DRC · 10 years ago
  74. 246b01b Revert r1506 (we actually are generating columns with the IDCT, so the naming makes sense in retrospect); further de-confusification in the forward DCT by DRC · 10 years ago
  75. c4e3c36 De-confusify the variable names a bit -- "out" represents the output of the IDCT kernel, so use "final" to represent the packed data that will be stored to memory. by DRC · 10 years ago
  76. 2ab5ea6 Add the ability to benchmark YCCK JPEG compression/decompression. This is particularly useful since that is the only way to test the performance of the "plain" upsampling routines, which are accelerated on some platforms. by DRC · 10 years ago
  77. c641cdd AltiVec SIMD implementation of H2V1 and H2V2 plain upsampling (used only when decompressing YCCK images with fast upsampling enabled.) by DRC · 10 years ago
  78. 86af36a AltiVec SIMD implementation of H2V1 and H2V2 merged upsampling by DRC · 10 years ago
  79. 11c4010 Fix an overread detected by valgrind by DRC · 10 years ago
  80. 2517ef7 Fix bugs in the AltiVec fancy upsampling routines uncovered during additional testing with small image sizes. Since the input width is half the output width, the upsampler should only write a second 16-byte chuck if there are more than 8 input columns left. Additionally, if the width is < 16, then we need to insert a dummy sample (the SSE2 code does this as well, but I neglected to port that portion of the code for some reason.) by DRC · 10 years ago
  81. 9ab2c10 In the process of developing the AltiVec extensions, it was discovered that the normal regression tests aren't sufficient to test the behavior of the library with very small image sizes and when compressing from/decompressing to a subregion of a larger image buffer. Thus, an additional regression test was added that takes advantage of the tiled compression/decompression feature in tjbench. by DRC · 10 years ago
  82. cbcb536 Fix a bug in the AltiVec downsampling routines uncovered during additional testing with small image sizes. Since the output width is half the input width, the downsampler should only read a second 16-byte chunk if there are more than 8 output columns left. by DRC · 10 years ago
  83. ada430b Make the formatting and naming of variables and constants more consistent by DRC · 10 years ago
  84. 406bb01 Make the formatting and naming of variables and constants more consistent by DRC · 10 years ago
  85. a6a24c2 Make the formatting and naming of variables and constants more consistent by DRC · 10 years ago
  86. 52a4ec6 AltiVec SIMD implementation of H2V1 and H2V2 fancy upsampling by DRC · 10 years ago
  87. 8f7f49a by DRC · 10 years ago
  88. cf78941 by DRC · 10 years ago
  89. 51eba06 Minor code readability tweak by DRC · 10 years ago
  90. d71a6e0 Use intrinsics for loading aligned data in the IDCT functions. This has no effect on performance, but it makes it more obvious what that code is doing. by DRC · 10 years ago
  91. f0abd46 Bump copyright year by DRC · 10 years ago
  92. ac4daa7 AltiVec SIMD implementation of YCC-to-RGB color conversion by DRC · 10 years ago
  93. af69295 Fix minor issue in code comments by DRC · 10 years ago
  94. 6aed112 Fix minor issue in code comments by DRC · 10 years ago
  95. a500575 Simplify the code somewhat. It actually wasn't necessary to have a "fast path" and a "medium path"-- they perform the same. by DRC · 10 years ago
  96. 2534788 Overhaul the AltiVec vector loading code in the compression-side colorspace conversion routines. The existing code was sometimes overreading the source buffer (at least according to valgrind), and it was necessary to increase the complexity of the code in order to prevent this without significantly compromising performance. by DRC · 10 years ago
  97. 8de75d0 Fix minor issue in code comments by DRC · 10 years ago
  98. 2204820 AltiVec SIMD implementation of 2x1 and 2x2 downsampling by DRC · 10 years ago
  99. 2b223a0 Oops. Delete the duplicate copy of [lib]turbojpeg.dll in the binary directory when uninstalling the package. by DRC · 10 years ago
  100. c4930d8 Oops. Delete the duplicate copy of [lib]turbojpeg.dll in the binary directory when uninstalling the package. by DRC · 10 years ago