DRC | f8e0055 | 2011-02-04 11:06:36 +0000 | [diff] [blame] | 1 | 1.1.90 (1.2 beta1) |
| 2 | ================== |
| 3 | |
| 4 | [1] Added a JNI wrapper for TurboJPEG/OSS. See java/README for more details. |
| 5 | |
DRC | 8ed7b81 | 2011-02-15 08:31:34 +0000 | [diff] [blame] | 6 | [2] TurboJPEG/OSS can now scale down images during decompression. |
DRC | a3c3059 | 2011-02-07 08:06:16 +0000 | [diff] [blame] | 7 | |
DRC | 15866ac | 2011-03-04 13:46:55 +0000 | [diff] [blame] | 8 | [3] Added SIMD routines for RGB-to-grayscale color conversion, which |
| 9 | significantly improves the performance of grayscale JPEG compression from an |
| 10 | RGB source image. |
| 11 | |
| 12 | [4] Improved performance for non-x86 machines. |
| 13 | |
| 14 | [5] Added a function to the TurboJPEG API which performs lossless transforms. |
| 15 | This function uses the same back end as jpegtran, but it performs transcoding |
| 16 | entirely in memory and allows multiple transforms and/or crop operations to be |
| 17 | batched together, so the source coefficients only need to be read once. This |
| 18 | is useful when generating image tiles from a single source JPEG. |
| 19 | |
| 20 | [6] Modified jpgtest to benchmark the new scaled decompression and lossless |
| 21 | transform features in TurboJPEG/OSS. |
| 22 | |
| 23 | [7] Added support for 4:4:0 (transposed 4:2:2) subsampling in TurboJPEG, which |
| 24 | was necessary in order for it to read 4:2:2 JPEG files that had been losslessly |
| 25 | transposed or rotated 90 degrees. |
| 26 | |
DRC | f89dd1e | 2011-05-21 14:23:30 +0000 | [diff] [blame] | 27 | [8] jchuff.c and jdhuff.c have been re-factored and re-licensed under the |
DRC | ee26992 | 2011-04-26 23:46:38 +0000 | [diff] [blame] | 28 | libjpeg BSD-style license, so the libjpeg-turbo library itself (libjpeg) is no |
| 29 | longer subject to the terms of the wxWindows Library License (libturbojpeg |
| 30 | still is-- see README-turbo.txt.) |
| 31 | |
DRC | f89dd1e | 2011-05-21 14:23:30 +0000 | [diff] [blame] | 32 | [9] libjpeg-turbo can now be built with YASM. |
DRC | 56fb237 | 2011-05-03 06:32:41 +0000 | [diff] [blame] | 33 | |
DRC | f89dd1e | 2011-05-21 14:23:30 +0000 | [diff] [blame] | 34 | [10] Added SIMD-accelerated fast integer inverse DCT and YCbCr-to-RGB color |
DRC | 321e068 | 2011-05-03 08:47:43 +0000 | [diff] [blame] | 35 | conversion routines to accelerate JPEG decoding on ARM Linux platforms that |
| 36 | have NEON instructions. |
| 37 | |
DRC | 9b28def | 2011-05-21 14:37:15 +0000 | [diff] [blame] | 38 | [11] Refactored the TurboJPEG C API so that it uses pixel formats to define the |
| 39 | size and component order of the uncompressed source/destination images as well |
| 40 | as uses the libjpeg memory source and destination managers. The latter allows |
| 41 | the TurboJPEG compressor to grow the JPEG buffer as necessary. |
| 42 | |
DRC | f8e0055 | 2011-02-04 11:06:36 +0000 | [diff] [blame] | 43 | |
DRC | 6ee5459 | 2011-03-01 08:18:30 +0000 | [diff] [blame] | 44 | 1.1.1 |
| 45 | ===== |
| 46 | |
| 47 | [1] Fixed a 1-pixel error in row 0, column 21 of the luminance plane generated |
| 48 | by tjEncodeYUV(). |
| 49 | |
DRC | 8071c39 | 2011-04-17 15:29:17 +0000 | [diff] [blame] | 50 | [2] libjpeg-turbo's accelerated Huffman decoder previously ignored unexpected |
| 51 | markers found in the middle of the JPEG data stream during decompression. It |
| 52 | will now hand off decoding of a particular block to the unaccelerated Huffman |
| 53 | decoder if an unexpected marker is found, so that the unaccelerated Huffman |
| 54 | decoder can generate an appropriate warning. |
DRC | 6ee5459 | 2011-03-01 08:18:30 +0000 | [diff] [blame] | 55 | |
DRC | 47aaf6f | 2011-03-22 05:40:39 +0000 | [diff] [blame] | 56 | [3] Older versions of MinGW64 prefixed symbol names with underscores by |
DRC | 1da7858 | 2011-03-22 09:34:01 +0000 | [diff] [blame] | 57 | default, which differed from the behavior of 64-bit Visual C++. MinGW64 1.0 |
| 58 | has adopted the behavior of 64-bit Visual C++ as the default, so to accommodate |
| 59 | this, the libjpeg-turbo SIMD function names are no longer prefixed with an |
| 60 | underscore when building with MinGW64. This means that, when building |
| 61 | libjpeg-turbo with older versions of MinGW64, you will now have to add |
| 62 | -fno-leading-underscore to the CFLAGS. |
| 63 | |
DRC | d884011 | 2011-04-25 22:46:25 +0000 | [diff] [blame] | 64 | [4] Fixed a regression bug in the NSIS script that caused the Windows installer |
| 65 | build to fail when using the Visual Studio IDE. |
| 66 | |
| 67 | [5] Fixed a bug in jpeg_read_coefficients() whereby it would not initialize |
| 68 | cinfo->image_width and cinfo->image_height if libjpeg v7 or v8 emulation was |
| 69 | enabled. This specifically caused the jpegoptim program to fail if it was |
| 70 | linked against a version of libjpeg-turbo that was built with libjpeg v7 or v8 |
| 71 | emulation. |
| 72 | |
DRC | 049aef5 | 2011-04-25 22:41:14 +0000 | [diff] [blame] | 73 | [6] Eliminated excessive I/O overhead that occurred when reading BMP files in |
| 74 | cjpeg. |
| 75 | |
DRC | 5ee81f4 | 2011-05-02 00:35:50 +0000 | [diff] [blame] | 76 | [7] Eliminated errors in the output of cjpeg on Windows that occurred when the |
DRC | 34a8e35 | 2011-05-10 22:14:38 +0000 | [diff] [blame] | 77 | application was invoked using I/O redirection (cjpeg <inputfile >output.jpg). |
DRC | 5ee81f4 | 2011-05-02 00:35:50 +0000 | [diff] [blame] | 78 | |
DRC | f5c3bb3 | 2011-03-18 05:59:07 +0000 | [diff] [blame] | 79 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 80 | 1.1.0 |
| 81 | ===== |
DRC | fa1d183 | 2011-01-26 05:35:20 +0000 | [diff] [blame] | 82 | |
DRC | a49c4e5 | 2011-02-18 20:50:08 +0000 | [diff] [blame] | 83 | [1] The algorithm used by the SIMD quantization function cannot produce correct |
| 84 | results when the JPEG quality is >= 98 and the fast integer forward DCT is |
| 85 | used. Thus, the non-SIMD quantization function is now used for those cases, |
| 86 | and libjpeg-turbo should now produce identical output to libjpeg v6b in all |
| 87 | cases. |
DRC | e1716b8 | 2011-02-18 03:19:43 +0000 | [diff] [blame] | 88 | |
DRC | a49c4e5 | 2011-02-18 20:50:08 +0000 | [diff] [blame] | 89 | [2] Despite the above, the fast integer forward DCT still degrades somewhat for |
| 90 | JPEG qualities greater than 95, so TurboJPEG/OSS will now automatically use the |
| 91 | slow integer forward DCT when generating JPEG images of quality 96 or greater. |
| 92 | This reduces compression performance by as much as 15% for these high-quality |
| 93 | images but is necessary to ensure that the images are perceptually lossless. |
| 94 | It also ensures that the library can avoid the performance pitfall created by |
| 95 | [1]. |
| 96 | |
| 97 | [3] Ported jpgtest.cxx to pure C to avoid the need for a C++ compiler. |
| 98 | |
| 99 | [4] Fixed visual artifacts in grayscale JPEG compression caused by a typo in |
DRC | d9ee65c | 2011-04-05 07:01:26 +0000 | [diff] [blame] | 100 | the RGB-to-luminance lookup tables. |
DRC | 8ed7b81 | 2011-02-15 08:31:34 +0000 | [diff] [blame] | 101 | |
DRC | 240d82f | 2011-02-19 00:00:34 +0000 | [diff] [blame] | 102 | [5] The Windows distribution packages now include the libjpeg run-time programs |
| 103 | (cjpeg, etc.) |
| 104 | |
DRC | 9cd2c42 | 2011-02-19 17:52:45 +0000 | [diff] [blame] | 105 | [6] All packages now include jpgtest. |
DRC | 240d82f | 2011-02-19 00:00:34 +0000 | [diff] [blame] | 106 | |
DRC | e4d9b5b | 2011-02-25 06:17:17 +0000 | [diff] [blame] | 107 | [7] The TurboJPEG dynamic library now uses versioned symbols. |
| 108 | |
| 109 | [8] Added two new TurboJPEG API functions, tjEncodeYUV() and |
| 110 | tjDecompressToYUV(), to replace the somewhat hackish TJ_YUV flag. |
| 111 | |
DRC | 2d94e26 | 2011-01-25 06:52:31 +0000 | [diff] [blame] | 112 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 113 | 1.0.90 (1.1 beta1) |
| 114 | ================== |
DRC | 766dc5c | 2010-10-12 02:50:18 +0000 | [diff] [blame] | 115 | |
DRC | f38eee0 | 2011-02-18 07:00:38 +0000 | [diff] [blame] | 116 | [1] Added emulation of the libjpeg v7 and v8 APIs and ABIs. See |
DRC | efa618e | 2010-10-18 08:41:11 +0000 | [diff] [blame] | 117 | README-turbo.txt for more details. This feature was sponsored by CamTrace SAS. |
| 118 | |
| 119 | [2] Created a new CMake-based build system for the Visual C++ and MinGW builds. |
DRC | 766dc5c | 2010-10-12 02:50:18 +0000 | [diff] [blame] | 120 | |
DRC | 09854f5 | 2010-11-04 22:39:59 +0000 | [diff] [blame] | 121 | [3] TurboJPEG/OSS can now compress from/decompress to grayscale bitmaps. |
| 122 | |
DRC | 01e6909 | 2011-01-06 01:19:43 +0000 | [diff] [blame] | 123 | [4] jpgtest can now be used to test decompression performance with existing |
| 124 | JPEG images. |
DRC | e89bbae | 2010-11-12 10:18:08 +0000 | [diff] [blame] | 125 | |
DRC | d1c281a | 2010-11-17 22:44:40 +0000 | [diff] [blame] | 126 | [5] If the default install prefix (/opt/libjpeg-turbo) is used, then |
| 127 | 'make install' now creates /opt/libjpeg-turbo/lib32 and |
| 128 | /opt/libjpeg-turbo/lib64 sym links to duplicate the behavior of the binary |
| 129 | packages. |
| 130 | |
DRC | ec31193 | 2010-11-22 19:51:42 +0000 | [diff] [blame] | 131 | [6] All symbols in the libjpeg-turbo dynamic library are now versioned, even |
| 132 | when the library is built with libjpeg v6b emulation. |
| 133 | |
DRC | 01e6909 | 2011-01-06 01:19:43 +0000 | [diff] [blame] | 134 | [7] Added arithmetic encoding and decoding support (can be disabled with |
DRC | 245cfdf | 2010-11-23 17:11:06 +0000 | [diff] [blame] | 135 | configure or CMake options) |
DRC | 66f97e6 | 2010-11-23 05:49:54 +0000 | [diff] [blame] | 136 | |
DRC | 9e17f7d | 2010-12-10 04:59:13 +0000 | [diff] [blame] | 137 | [8] Added a TJ_YUV flag to TurboJPEG/OSS which causes both the compressor and |
| 138 | decompressor to output planar YUV images. |
DRC | fbb6747 | 2010-11-24 04:02:37 +0000 | [diff] [blame] | 139 | |
DRC | 50c657b | 2010-12-14 01:23:16 +0000 | [diff] [blame] | 140 | [9] Added an extended version of tjDecompressHeader() to TurboJPEG/OSS which |
| 141 | allows the caller to determine the type of subsampling used in a JPEG image. |
| 142 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 143 | [10] Added further protections against invalid Huffman codes. |
DRC | fa1d183 | 2011-01-26 05:35:20 +0000 | [diff] [blame] | 144 | |
DRC | 766dc5c | 2010-10-12 02:50:18 +0000 | [diff] [blame] | 145 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 146 | 1.0.1 |
| 147 | ===== |
DRC | 0fbb28e | 2010-07-30 17:15:52 +0000 | [diff] [blame] | 148 | |
| 149 | [1] The Huffman decoder will now handle erroneous Huffman codes (for instance, |
| 150 | from a corrupt JPEG image.) Previously, these would cause libjpeg-turbo to |
| 151 | crash under certain circumstances. |
| 152 | |
DRC | 025a279 | 2010-08-07 16:27:56 +0000 | [diff] [blame] | 153 | [2] Fixed typo in SIMD dispatch routines which was causing 4:2:2 upsampling to |
| 154 | be used instead of 4:2:0 when decompressing JPEG images using SSE2 code. |
DRC | 3095971 | 2010-08-07 16:06:56 +0000 | [diff] [blame] | 155 | |
DRC | bdb1288 | 2010-08-21 21:14:17 +0000 | [diff] [blame] | 156 | [3] configure script will now automatically determine whether the |
| 157 | INCOMPLETE_TYPES_BROKEN macro should be defined. |
| 158 | |
DRC | 0fbb28e | 2010-07-30 17:15:52 +0000 | [diff] [blame] | 159 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 160 | 1.0.0 |
| 161 | ===== |
DRC | 4959787 | 2010-05-17 20:47:57 +0000 | [diff] [blame] | 162 | |
DRC | c773d10 | 2010-06-05 06:58:22 +0000 | [diff] [blame] | 163 | [1] 2983700: Further FreeBSD build tweaks (no longer necessary to specify |
| 164 | --host when configuring on a 64-bit system) |
DRC | 4959787 | 2010-05-17 20:47:57 +0000 | [diff] [blame] | 165 | |
DRC | f12c7db | 2010-05-18 19:04:47 +0000 | [diff] [blame] | 166 | [2] Created sym. links in the Unix/Linux packages so that the TurboJPEG |
| 167 | include file can always be found in /opt/libjpeg-turbo/include, the 32-bit |
| 168 | static libraries can always be found in /opt/libjpeg-turbo/lib32, and the |
| 169 | 64-bit static libraries can always be found in /opt/libjpeg-turbo/lib64. |
| 170 | |
DRC | 4bf3b58 | 2010-06-05 01:03:23 +0000 | [diff] [blame] | 171 | [3] The Unix/Linux distribution packages now include the libjpeg run-time |
| 172 | programs (cjpeg, etc.) and man pages. |
| 173 | |
| 174 | [4] Created a 32-bit supplementary package for amd64 Debian systems which |
| 175 | contains just the 32-bit libjpeg-turbo libraries. |
| 176 | |
| 177 | [5] Moved the libraries from */lib32 to */lib in the i386 Debian package. |
| 178 | |
DRC | df3337c | 2010-07-02 09:13:58 +0000 | [diff] [blame] | 179 | [6] Include distribution package for Cygwin |
DRC | 4bf3b58 | 2010-06-05 01:03:23 +0000 | [diff] [blame] | 180 | |
DRC | df3337c | 2010-07-02 09:13:58 +0000 | [diff] [blame] | 181 | [7] No longer necessary to specify --without-simd on non-x86 architectures, and |
DRC | 38ccf85 | 2010-06-10 19:49:49 +0000 | [diff] [blame] | 182 | unit tests now work on those architectures. |
| 183 | |
DRC | 4959787 | 2010-05-17 20:47:57 +0000 | [diff] [blame] | 184 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 185 | 0.0.93 |
| 186 | ====== |
DRC | 0f413b2 | 2010-04-06 20:05:39 +0000 | [diff] [blame] | 187 | |
DRC | c773d10 | 2010-06-05 06:58:22 +0000 | [diff] [blame] | 188 | [1] 2982659, Fixed x86-64 build on FreeBSD systems |
DRC | 0f413b2 | 2010-04-06 20:05:39 +0000 | [diff] [blame] | 189 | |
DRC | c773d10 | 2010-06-05 06:58:22 +0000 | [diff] [blame] | 190 | [2] 2988188: Added support for Windows 64-bit systems |
DRC | 1a2219e | 2010-05-10 20:03:36 +0000 | [diff] [blame] | 191 | |
DRC | 0f413b2 | 2010-04-06 20:05:39 +0000 | [diff] [blame] | 192 | |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 193 | 0.0.91 |
| 194 | ====== |
DRC | ae19bf6 | 2010-03-15 11:40:31 +0000 | [diff] [blame] | 195 | |
| 196 | [1] Added documentation to .deb packages |
| 197 | |
| 198 | [2] 2968313: Fixed data corruption issues when decompressing large JPEG images |
| 199 | and/or using buffered I/O with the libjpeg-turbo decompressor |
DRC | 958b2c0 | 2011-01-28 08:00:40 +0000 | [diff] [blame] | 200 | |
| 201 | |
| 202 | 0.0.90 |
| 203 | ====== |
| 204 | |
| 205 | Initial release |