Mercurial > hgrepos > Python2 > PyMuPDF
annotate mupdf-source/thirdparty/libjpeg/change.log @ 2:b50eed0cc0ef upstream
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
The directory name has changed: no version number in the expanded directory now.
| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Mon, 15 Sep 2025 11:43:07 +0200 |
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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1 CHANGE LOG for Independent JPEG Group's JPEG software |
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2 |
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3 |
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4 Version 9f 14-Jan-2024 |
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5 ----------------------- |
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6 |
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7 Add build system for C++Builder/RAD Studio. |
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8 |
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9 Add build system for Xcode (beside configure). |
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10 |
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11 Add ARM64EC (Emulation Compatible) platform support in the |
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12 Visual Studio build. |
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13 |
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14 |
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15 Version 9e 16-Jan-2022 |
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16 ----------------------- |
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17 |
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18 Include alternate user interface files for cjpeg/djpeg. |
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19 |
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20 jcparam.c: change default chrominance DC quantization factor |
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21 for lossless support. Note: Requires rebuild of test images. |
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22 |
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23 rdgif.c, cderror.h: add sanity check for GIF image dimensions. |
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24 Thank to Casper Sun for cjpeg potential vulnerability report. |
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25 |
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26 Add ARM and ARM64 platform support in the Visual Studio build. |
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27 |
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28 |
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29 Version 9d 12-Jan-2020 |
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30 ----------------------- |
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31 |
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32 Optimize the optimal Huffman code table generation to produce |
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33 slightly smaller files. Thank to John Korejwa for suggestion. |
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34 Note: Requires rebuild of testimgp.jpg. |
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35 |
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36 Decoding Huffman: Use default tables if tables are not defined. |
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37 Thank to Simone Azzalin for report (Motion JPEG), |
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38 and to Martin Strunz for hint. |
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39 |
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40 Add sanity check in optimal Huffman code table generation. |
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41 Thank to Adam Farley for suggestion. |
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42 |
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43 rdtarga.c: use read_byte(), with EOF check, instead of getc() |
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44 in read_*_pixel(). |
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45 Thank to Chijin Zhou for cjpeg potential vulnerability report. |
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46 |
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47 jmemnobs.c: respect the max_memory_to_use setting in |
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48 jpeg_mem_available() computation. Thank to Sheng Shu and |
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49 Dongdong She for djpeg potential vulnerability report. |
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50 |
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51 jdarith.c, jdhuff.c: avoid left shift of negative value |
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52 compiler warning in decode_mcu_AC_refine(). |
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53 Thank to Indu Bhagat for suggestion. |
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54 |
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55 Add x64 (64-bit) platform support, avoid compiler warnings. |
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56 Thank to Jonathan Potter, Feiyun Wang, and Sheng Shu for suggestion. |
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57 |
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58 Adjust libjpeg version specification for pkg-config file. |
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59 Thank to Chen Chen for suggestion. |
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60 |
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61 Restore GIF read and write support from libjpeg version 6a. |
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62 Thank to Wolfgang Werner (W.W.) Heinz for suggestion. |
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63 |
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64 Improve consistency in raw (downsampled) image data processing mode. |
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65 Thank to Zhongyuan Zhou for hint. |
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66 |
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67 Avoid out of bounds array read (AC derived table pointers) |
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68 in start pass in jdhuff.c. Thank to Peng Li for report. |
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69 |
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70 Improve code sanity (jdhuff.c). |
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71 Thank to Reza Mirzazade farkhani for reports. |
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72 |
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73 Add jpegtran -drop option; add options to the crop extension and wipe |
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74 to fill the extra area with content from the source image region, |
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75 instead of gray out. |
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76 |
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77 |
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78 Version 9c 14-Jan-2018 |
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79 ----------------------- |
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80 |
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81 jpegtran: add an option to the -wipe switch to fill the region |
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82 with the average of adjacent blocks, instead of gray out. |
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83 Thank to Caitlyn Feddock and Maddie Ziegler for inspiration. |
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84 |
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85 Make range extension bits adjustable (in jpegint.h). |
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86 Thank to Robin Watts for suggestion. |
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87 |
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88 Provide macros for fflush() and ferror() in jinclude.h in order |
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89 to facilitate adaption by applications using an own FILE class. |
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90 Thank to Gerhard Huber for suggestion. |
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91 |
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92 Add libjpeg pkg-config file. Thank to Mark Lavi, Vincent Torri, |
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93 Patrick McMunn, and Huw Davies for suggestion. |
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94 |
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95 Add sanity checks in cjpeg image reader modules. |
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96 Thank to Bingchang, Liu for reports. |
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97 |
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98 |
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99 Version 9b 17-Jan-2016 |
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100 ----------------------- |
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101 |
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102 Improvements and optimizations in DCT and color calculations. |
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103 Normalize range limit array composition and access pattern. |
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104 Thank to Sia Furler and Maddie Ziegler for inspiration. |
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105 |
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106 Use merged upsample with scaled DCT sizes larger than 8. |
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107 Thank to Taylor Hatala for inspiration. |
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108 |
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109 Check for excessive comment lengths in argument parsing in wrjpgcom.c. |
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110 Thank to Julian Cohen for hint. |
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111 |
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112 Add makefile.b32 for use with Borland C++ 32-bit (bcc32). |
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113 Thank to Joe Slater for contribution. |
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114 |
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115 Document 'f' specifier for jpegtran -crop specification. |
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116 Thank to Michele Martone for suggestion. |
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117 |
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118 Use defined value from header instead of hardwired number in rdswitch.c. |
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119 Thank to Robert Sprowson for hint. |
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120 |
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121 |
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122 Version 9a 19-Jan-2014 |
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123 ----------------------- |
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124 |
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125 Add support for wide gamut color spaces (JFIF version 2). |
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126 Improve clarity and accuracy in color conversion modules. |
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127 Note: Requires rebuild of test images. |
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128 |
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129 Extend the bit depth support to all values from 8 to 12 |
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130 (BITS_IN_JSAMPLE configuration option in jmorecfg.h). |
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131 jpegtran now supports N bits sample data precision with all N from 8 to 12 |
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132 in a single instance. Thank to Roland Fassauer for inspiration. |
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133 |
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134 Try to resolve issues with new boolean type definition. |
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135 Thank also to v4hn for suggestion. |
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136 |
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137 Enable option to use default Huffman tables for lossless compression |
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138 (for hardware solution), and in this case improve lossless RGB compression |
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139 with reversible color transform. Thank to Benny Alexandar for hint. |
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140 |
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141 Extend the entropy decoding structure, so that extraneous bytes between |
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142 compressed scan data and following marker can be reported correctly. |
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143 Thank to Nigel Tao for hint. |
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144 |
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145 Add jpegtran -wipe option and extension for -crop. |
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146 Thank to Andrew Senior, David Clunie, and Josef Schmid for suggestion. |
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147 |
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148 |
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149 Version 9 13-Jan-2013 |
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150 ---------------------- |
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151 |
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152 Add cjpeg -rgb1 option to create an RGB JPEG file, and insert |
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153 a simple reversible color transform into the processing which |
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154 significantly improves the compression. |
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155 The recommended command for lossless coding of RGB images is now |
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156 cjpeg -rgb1 -block 1 -arithmetic. |
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157 As said, this option improves the compression significantly, but |
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158 the files are not compatible with JPEG decoders prior to IJG v9 |
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159 due to the included color transform. |
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160 The used color transform and marker signaling is compatible with |
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161 other JPEG standards (e.g., JPEG-LS part 2). |
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162 |
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163 Remove the automatic de-ANSI-fication support (Automake 1.12). |
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164 Thank also to Nitin A Kamble for suggestion. |
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165 |
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166 Add remark for jpeg_mem_dest() in jdatadst.c. |
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167 Thank to Elie-Gregoire Khoury for the hint. |
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168 |
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169 Support files with invalid component identifiers (created |
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170 by Adobe PDF). Thank to Robin Watts for the suggestion. |
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171 |
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172 Adapt full buffer case in jcmainct.c for use with scaled DCT. |
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173 Thank to Sergii Biloshytskyi for the suggestion. |
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174 |
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175 Add type identifier for declaration of noreturn functions. |
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176 Thank to Brett L. Moore for the suggestion. |
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177 |
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178 Correct argument type in format string, avoid compiler warnings. |
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179 Thank to Vincent Torri for hint. |
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180 |
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181 Add missing #include directives in configuration checks, avoid |
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182 configuration errors. Thank to John Spencer for the hint. |
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183 |
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184 |
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185 Version 8d 15-Jan-2012 |
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186 ----------------------- |
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187 |
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188 Add cjpeg -rgb option to create RGB JPEG files. |
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189 Using this switch suppresses the conversion from RGB |
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190 colorspace input to the default YCbCr JPEG colorspace. |
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191 This feature allows true lossless JPEG coding of RGB color images. |
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192 The recommended command for this purpose is currently |
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193 cjpeg -rgb -block 1 -arithmetic. |
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194 SmartScale capable decoder (introduced with IJG JPEG 8) required. |
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195 Thank to Michael Koch for the initial suggestion. |
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196 |
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197 Add option to disable the region adjustment in the transupp crop code. |
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198 Thank to Jeffrey Friedl for the suggestion. |
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199 |
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200 Thank to Richard Jones and Edd Dawson for various minor corrections. |
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201 |
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202 Thank to Akim Demaille for configure.ac cleanup. |
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203 |
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204 |
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205 Version 8c 16-Jan-2011 |
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206 ----------------------- |
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207 |
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208 Add option to compression library and cjpeg (-block N) to use |
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209 different DCT block size. |
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210 All N from 1 to 16 are possible. Default is 8 (baseline format). |
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211 Larger values produce higher compression, |
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212 smaller values produce higher quality. |
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213 SmartScale capable decoder (introduced with IJG JPEG 8) required. |
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214 |
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215 |
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216 Version 8b 16-May-2010 |
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217 ----------------------- |
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218 |
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219 Repair problem in new memory source manager with corrupt JPEG data. |
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220 Thank to Ted Campbell and Samuel Chun for the report. |
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221 |
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222 Repair problem in Makefile.am test target. |
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223 Thank to anonymous user for the report. |
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224 |
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225 Support MinGW installation with automatic configure. |
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226 Thank to Volker Grabsch for the suggestion. |
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227 |
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228 |
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229 Version 8a 28-Feb-2010 |
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230 ----------------------- |
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231 |
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232 Writing tables-only datastreams via jpeg_write_tables works again. |
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233 |
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234 Support 32-bit BMPs (RGB image with Alpha channel) for read in cjpeg. |
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235 Thank to Brett Blackham for the suggestion. |
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236 |
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237 Improve accuracy in floating point IDCT calculation. |
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238 Thank to Robert Hooke for the hint. |
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239 |
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240 |
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241 Version 8 10-Jan-2010 |
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242 ---------------------- |
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243 |
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244 jpegtran now supports the same -scale option as djpeg for "lossless" resize. |
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245 An implementation of the JPEG SmartScale extension is required for this |
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246 feature. A (draft) specification of the JPEG SmartScale extension is |
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247 available as a contributed document at ITU and ISO. Revision 2 or later |
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248 of the document is required (latest document version is Revision 3). |
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249 The SmartScale extension will enable more features beside lossless resize |
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250 in future implementations, as described in the document (new compression |
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251 options). |
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252 |
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253 Add sanity check in BMP reader module to avoid cjpeg crash for empty input |
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254 image (thank to Isaev Ildar of ISP RAS, Moscow, RU for reporting this error). |
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255 |
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256 Add data source and destination managers for read from and write to |
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257 memory buffers. New API functions jpeg_mem_src and jpeg_mem_dest. |
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258 Thank to Roberto Boni from Italy for the suggestion. |
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259 |
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260 |
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261 Version 7 27-Jun-2009 |
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262 ---------------------- |
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263 |
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264 New scaled DCTs implemented. |
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265 djpeg now supports scalings N/8 with all N from 1 to 16. |
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266 cjpeg now supports scalings 8/N with all N from 1 to 16. |
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267 Scaled DCTs with size larger than 8 are now also used for resolving the |
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268 common 2x2 chroma subsampling case without additional spatial resampling. |
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269 Separate spatial resampling for those kind of files is now only necessary |
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270 for N>8 scaling cases. |
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271 Furthermore, separate scaled DCT functions are provided for direct resolving |
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272 of the common asymmetric subsampling cases (2x1 and 1x2) without additional |
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273 spatial resampling. |
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274 |
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275 cjpeg -quality option has been extended for support of separate quality |
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276 settings for luminance and chrominance (or in general, for every provided |
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277 quantization table slot). |
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278 New API function jpeg_default_qtables() and q_scale_factor array in library. |
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279 |
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280 Added -nosmooth option to cjpeg, complementary to djpeg. |
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281 New variable "do_fancy_downsampling" in library, complement to fancy |
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282 upsampling. Fancy upsampling now uses direct DCT scaling with sizes |
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283 larger than 8. The old method is not reversible and has been removed. |
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284 |
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285 Support arithmetic entropy encoding and decoding. |
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286 Added files jaricom.c, jcarith.c, jdarith.c. |
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287 |
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288 Straighten the file structure: |
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289 Removed files jidctred.c, jcphuff.c, jchuff.h, jdphuff.c, jdhuff.h. |
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290 |
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291 jpegtran has a new "lossless" cropping feature. |
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292 |
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293 Implement -perfect option in jpegtran, new API function |
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294 jtransform_perfect_transform() in transupp. (DP 204_perfect.dpatch) |
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295 |
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296 Better error messages for jpegtran fopen failure. |
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297 (DP 203_jpegtran_errmsg.dpatch) |
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298 |
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299 Fix byte order issue with 16bit PPM/PGM files in rdppm.c/wrppm.c: |
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300 according to Netpbm, the de facto standard implementation of the PNM formats, |
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301 the most significant byte is first. (DP 203_rdppm.dpatch) |
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302 |
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303 Add -raw option to rdjpgcom not to mangle the output. |
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304 (DP 205_rdjpgcom_raw.dpatch) |
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305 |
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306 Make rdjpgcom locale aware. (DP 201_rdjpgcom_locale.dpatch) |
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307 |
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308 Add extern "C" to jpeglib.h. |
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309 This avoids the need to put extern "C" { ... } around #include "jpeglib.h" |
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310 in your C++ application. Defining the symbol DONT_USE_EXTERN_C in the |
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311 configuration prevents this. (DP 202_jpeglib.h_c++.dpatch) |
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312 |
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313 |
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314 Version 6b 27-Mar-1998 |
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315 ----------------------- |
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316 |
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317 jpegtran has new features for lossless image transformations (rotation |
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318 and flipping) as well as "lossless" reduction to grayscale. |
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319 |
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320 jpegtran now copies comments by default; it has a -copy switch to enable |
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321 copying all APPn blocks as well, or to suppress comments. (Formerly it |
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322 always suppressed comments and APPn blocks.) jpegtran now also preserves |
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323 JFIF version and resolution information. |
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324 |
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325 New decompressor library feature: COM and APPn markers found in the input |
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326 file can be saved in memory for later use by the application. (Before, |
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327 you had to code this up yourself with a custom marker processor.) |
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328 |
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329 There is an unused field "void * client_data" now in compress and decompress |
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330 parameter structs; this may be useful in some applications. |
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331 |
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332 JFIF version number information is now saved by the decoder and accepted by |
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333 the encoder. jpegtran uses this to copy the source file's version number, |
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334 to ensure "jpegtran -copy all" won't create bogus files that contain JFXX |
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335 extensions but claim to be version 1.01. Applications that generate their |
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336 own JFXX extension markers also (finally) have a supported way to cause the |
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337 encoder to emit JFIF version number 1.02. |
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338 |
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339 djpeg's trace mode reports JFIF 1.02 thumbnail images as such, rather |
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340 than as unknown APP0 markers. |
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341 |
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342 In -verbose mode, djpeg and rdjpgcom will try to print the contents of |
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343 APP12 markers as text. Some digital cameras store useful text information |
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344 in APP12 markers. |
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345 |
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346 Handling of truncated data streams is more robust: blocks beyond the one in |
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347 which the error occurs will be output as uniform gray, or left unchanged |
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348 if decoding a progressive JPEG. The appearance no longer depends on the |
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349 Huffman tables being used. |
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350 |
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351 Huffman tables are checked for validity much more carefully than before. |
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352 |
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353 To avoid the Unisys LZW patent, djpeg's GIF output capability has been |
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354 changed to produce "uncompressed GIFs", and cjpeg's GIF input capability |
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355 has been removed altogether. We're not happy about it either, but there |
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
356 seems to be no good alternative. |
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff
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|
357 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
358 The configure script now supports building libjpeg as a shared library |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
359 on many flavors of Unix (all the ones that GNU libtool knows how to |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
360 build shared libraries for). Use "./configure --enable-shared" to |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
361 try this out. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
362 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
363 New jconfig file and makefiles for Microsoft Visual C++ and Developer Studio. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
364 Also, a jconfig file and a build script for Metrowerks CodeWarrior |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
365 on Apple Macintosh. makefile.dj has been updated for DJGPP v2, and there |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
366 are miscellaneous other minor improvements in the makefiles. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
367 |
|
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parents:
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|
368 jmemmac.c now knows how to create temporary files following Mac System 7 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
369 conventions. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
370 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
371 djpeg's -map switch is now able to read raw-format PPM files reliably. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
372 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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373 cjpeg -progressive -restart no longer generates any unnecessary DRI markers. |
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|
374 |
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
375 Multiple calls to jpeg_simple_progression for a single JPEG object |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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376 no longer leak memory. |
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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|
377 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
378 |
|
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
379 Version 6a 7-Feb-96 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
380 -------------------- |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
381 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
382 Library initialization sequence modified to detect version mismatches |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
383 and struct field packing mismatches between library and calling application. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
384 This change requires applications to be recompiled, but does not require |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
385 any application source code change. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
386 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
387 All routine declarations changed to the style "GLOBAL(type) name ...", |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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|
388 that is, GLOBAL, LOCAL, METHODDEF, EXTERN are now macros taking the |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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|
389 routine's return type as an argument. This makes it possible to add |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
390 Microsoft-style linkage keywords to all the routines by changing just |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
391 these macros. Note that any application code that was using these macros |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
392 will have to be changed. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
393 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
394 DCT coefficient quantization tables are now stored in normal array order |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
395 rather than zigzag order. Application code that calls jpeg_add_quant_table, |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
396 or otherwise manipulates quantization tables directly, will need to be |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
397 changed. If you need to make such code work with either older or newer |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
398 versions of the library, a test like "#if JPEG_LIB_VERSION >= 61" is |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
399 recommended. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
400 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
401 djpeg's trace capability now dumps DQT tables in natural order, not zigzag |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
402 order. This allows the trace output to be made into a "-qtables" file |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
403 more easily. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
404 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
405 New system-dependent memory manager module for use on Apple Macintosh. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
406 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
407 Fix bug in cjpeg's -smooth option: last one or two scanlines would be |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
408 duplicates of the prior line unless the image height mod 16 was 1 or 2. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
409 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
410 Repair minor problems in VMS, BCC, MC6 makefiles. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
411 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
412 New configure script based on latest GNU Autoconf. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
413 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
414 Correct the list of include files needed by MetroWerks C for ccommand(). |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
415 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
416 Numerous small documentation updates. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
417 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
418 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
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|
419 Version 6 2-Aug-95 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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changeset
|
420 ------------------- |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
421 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
422 Progressive JPEG support: library can read and write full progressive JPEG |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
423 files. A "buffered image" mode supports incremental decoding for on-the-fly |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
424 display of progressive images. Simply recompiling an existing IJG-v5-based |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
425 decoder with v6 should allow it to read progressive files, though of course |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
426 without any special progressive display. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
427 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
428 New "jpegtran" application performs lossless transcoding between different |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
429 JPEG formats; primarily, it can be used to convert baseline to progressive |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
430 JPEG and vice versa. In support of jpegtran, the library now allows lossless |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
431 reading and writing of JPEG files as DCT coefficient arrays. This ability |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
432 may be of use in other applications. |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
433 |
|
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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
434 Notes for programmers: |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
435 * We changed jpeg_start_decompress() to be able to suspend; this makes all |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
436 decoding modes available to suspending-input applications. However, |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
437 existing applications that use suspending input will need to be changed |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
438 to check the return value from jpeg_start_decompress(). You don't need to |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
439 do anything if you don't use a suspending data source. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
440 * We changed the interface to the virtual array routines: access_virt_array |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
441 routines now take a count of the number of rows to access this time. The |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
442 last parameter to request_virt_array routines is now interpreted as the |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
443 maximum number of rows that may be accessed at once, but not necessarily |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
444 the height of every access. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
445 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
446 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
447 Version 5b 15-Mar-95 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
448 --------------------- |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
449 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
450 Correct bugs with grayscale images having v_samp_factor > 1. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
451 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
452 jpeg_write_raw_data() now supports output suspension. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
453 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
454 Correct bugs in "configure" script for case of compiling in |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
455 a directory other than the one containing the source files. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
456 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
457 Repair bug in jquant1.c: sometimes didn't use as many colors as it could. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
458 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
459 Borland C makefile and jconfig file work under either MS-DOS or OS/2. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
460 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
461 Miscellaneous improvements to documentation. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
462 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
463 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
464 Version 5a 7-Dec-94 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
465 -------------------- |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
466 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
467 Changed color conversion roundoff behavior so that grayscale values are |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
468 represented exactly. (This causes test image files to change.) |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
469 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
470 Make ordered dither use 16x16 instead of 4x4 pattern for a small quality |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
471 improvement. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
472 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
473 New configure script based on latest GNU Autoconf. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
474 Fix configure script to handle CFLAGS correctly. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
475 Rename *.auto files to *.cfg, so that configure script still works if |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
476 file names have been truncated for DOS. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
477 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
478 Fix bug in rdbmp.c: didn't allow for extra data between header and image. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
479 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
480 Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
481 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
482 Fix several bugs in rdrle.c. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
483 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
484 NEED_SHORT_EXTERNAL_NAMES option was broken. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
485 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
486 Revise jerror.h/jerror.c for more flexibility in message table. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
487 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
488 Repair oversight in jmemname.c NO_MKTEMP case: file could be there |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
489 but unreadable. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
490 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
491 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
492 Version 5 24-Sep-94 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
493 -------------------- |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
494 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
495 Version 5 represents a nearly complete redesign and rewrite of the IJG |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
496 software. Major user-visible changes include: |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
497 * Automatic configuration simplifies installation for most Unix systems. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
498 * A range of speed vs. image quality tradeoffs are supported. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
499 This includes resizing of an image during decompression: scaling down |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
500 by a factor of 1/2, 1/4, or 1/8 is handled very efficiently. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
501 * New programs rdjpgcom and wrjpgcom allow insertion and extraction |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
502 of text comments in a JPEG file. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
503 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
504 The application programmer's interface to the library has changed completely. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
505 Notable improvements include: |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
506 * We have eliminated the use of callback routines for handling the |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
507 uncompressed image data. The application now sees the library as a |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
508 set of routines that it calls to read or write image data on a |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
509 scanline-by-scanline basis. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
510 * The application image data is represented in a conventional interleaved- |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
511 pixel format, rather than as a separate array for each color channel. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
512 This can save a copying step in many programs. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
513 * The handling of compressed data has been cleaned up: the application can |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
514 supply routines to source or sink the compressed data. It is possible to |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
515 suspend processing on source/sink buffer overrun, although this is not |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
516 supported in all operating modes. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
517 * All static state has been eliminated from the library, so that multiple |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
518 instances of compression or decompression can be active concurrently. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
519 * JPEG abbreviated datastream formats are supported, ie, quantization and |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
520 Huffman tables can be stored separately from the image data. |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
521 * And not only that, but the documentation of the library has improved |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
522 considerably! |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
523 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
524 |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
525 The last widely used release before the version 5 rewrite was version 4A of |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
526 18-Feb-93. Change logs before that point have been discarded, since they |
|
b50eed0cc0ef
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
527 are not of much interest after the rewrite. |
