| author | eckhart.koppen@nokia.com |
| Wed, 31 Mar 2010 11:06:36 +0300 | |
| changeset 7 | f7bc934e204c |
| permissions | -rw-r--r-- |
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<HEAD> |
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Changes in TIFF v3.5.7 |
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<BODY BGCOLOR=white> |
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<FONT FACE="Helvetica, Arial, Sans"> |
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<FONT FACE="Helvetica, Arial, Sans"> |
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<BASEFONT SIZE=4> |
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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B> |
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<BASEFONT SIZE=3> |
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<UL> |
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<HR SIZE=4 WIDTH=65% ALIGN=left> |
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<B>Current Version</B>: v3.5.7<BR> |
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<B>Previous Version</B>: <A HREF=v3.5.6-beta.html>v3.5.6 Beta</a><BR> |
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.remotesensing.org/pub/libtiff">ftp.remotesensing.org</a>, directory pub/libtiff</A><BR> |
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<B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff/">http://www.remotesensing.org/libtiff</a> |
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<HR SIZE=4 WIDTH=65% ALIGN=left> |
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</UL> |
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<P> |
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This document describes the changes made to the software between the |
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<I>previous</I> and <I>current</I> versions (see above). |
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If you don't find something listed here, then it was not done in this |
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timeframe, or it was not considered important enough to be mentioned. |
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The following information is located here: |
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<UL> |
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<LI><A HREF="#configure">Changes in the software configuration</A> |
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<LI><A HREF="#libtiff">Changes in libtiff</A> |
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<LI><A HREF="#tools">Changes in the tools</A> |
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<LI><A HREF="#lzwkit">Changes in the LZW compression kit</A> |
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</UL> |
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<p> |
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<P><HR WIDTH=65% ALIGN=left> |
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<!---------------------------------------------------------------------------> |
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A> |
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<UL> |
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<li> libtiff/libtiff.def: Brent Roman submitted new version adding |
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serveral missing entry points. Also add a few other entry points |
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later. |
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<li> configure, Makefile.in, etc: added support for OPTIMIZER being |
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set from config.site. |
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<li> config.guess: updated wholesale to an FSF version apparently |
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from 1998 (as opposed to 1994). This is mainly inspired by |
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providing for MacOS X support. |
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<li> configure/config.site: modified to check if -lm is needed for |
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MACHDEPLIBS if not supplied by config.site. Needed for Darwin. |
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<li> libtiff/tiff.h: Applied hac to try and resolve the problem |
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with the inttypes.h include file on AIX. (Bug 39) |
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<li> configure, *Makefile.in: Various changes to improve configuration |
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for HP/UX specifically, and also in general. (Bug 40) They include: |
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<ul> |
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<li> Try to handle /usr/bin/sh instead of /bin/sh where necessary. |
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<li> Upgrade to HP/UX 10.x+ compiler, linker and dso options. |
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<li> Fixed mmap() test to avoid MMAP_FIXED ... it isn't available on HP |
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<li> Use -${MAKEFLAGS} in sub makes from makefiles.
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<li> Fixed SCRIPT_SH/SHELL handling. |
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</ul> |
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<li> configure: Changes for DSO generation on AIX provided by |
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John Marquart <jomarqua@indiana.edu>. |
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<li> configure, libtiff/Makefile.in: Modified to build DSOs properly |
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on Darwin thanks to Robert Krajewski (rpk@alum.mit.edu) and |
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Keisuke Fujii (fujiik@jlcuxf.kek.jp). |
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<li> configure, libtiff/Makefile.in: applied OpenBSD patches as per bug 61. |
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<li> Makefile.in: added DESTDIR support as per bug 60. |
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<li> libtiff/tif_jpeg.c: Define HAVE_BOOLEAN on windows if RPCNDR.H |
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has been included. |
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<li> man/Makefile.in: add TIFFClientOpen link as per debian submitted |
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bug 66. |
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<li> libtiff/Makefile.in: Fixed @DSOSUB_VERSION to be @DSOSUF_VERSION@ |
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in two places. |
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</UL> |
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<P><HR WIDTH=65% ALIGN=left> |
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<!---------------------------------------------------------------------------> |
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A> |
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<UL> |
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96 |
<li> tif_fax3.c: keep rw_mode flag internal to fax3 state to remember |
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97 |
whether we are encoding or decoding. This is to ensure graceful |
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98 |
recovery if TIFFClientOpen() discovers an attempt to open a compressed |
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99 |
file for "r+" access, and subsequently close it, as it resets the |
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100 |
tif_mode flag to O_RDONLY in this case to avoid writes, confusing the |
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101 |
compressor's concept of whether it is in encode or decode mode. |
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102 |
<li> tif_luv.c/tiff.h/tiffio.h: |
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103 |
New version of TIFF LogLuv (SGILOG) modules contributed by Greg Ward |
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104 |
(greg@shutterfly.com). He writes: |
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105 |
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106 |
<ol> |
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107 |
<li> I improved the gamut-mapping function in tif_luv.c for imaginary |
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108 |
colors, because some images were being super-saturated on the input |
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109 |
side and this resulted in some strange color shifts in the output. |
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110 |
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111 |
<li> I added a psuedotag in tiff.h to control random dithering during |
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112 |
LogLuv encoding. This is turned off by default for 32-bit LogLuv and |
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113 |
on for 24-bit LogLuv output. Dithering improves the average color |
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114 |
accuracy over the image. |
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115 |
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116 |
<li> I added a #define for LOG_LUV_PUBLIC, which is enabled by default in |
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117 |
tiffio.h, to expose internal routines for converting between LogLuv and |
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118 |
XYZ coordinates. This is helpful for writing more efficient, |
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119 |
specialized conversion routines, especially for reading LogLuv files. |
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120 |
</ol> |
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121 |
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122 |
<li> libtiff/tif_dirinfo.c: don't declare tiffFieldInfo static on VMS. |
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123 |
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124 |
<li> Added TIFFTAG_COPYRIGHT support. |
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125 |
<li> tif_getimage.c: Added support for 16bit minisblack/miniswhite |
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126 |
images in RGBA interface. |
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127 |
<li> libtiff/tif_dirinfo.c: removed duplicate TIFFTAG_PHOTOSHOP as per |
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128 |
bug 44. |
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129 |
<li> libtiff/tif_dirwrite.c: Added support for TIFF_VARIABLE2 in the |
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130 |
case of writing TIFF_BYTE/TIFF_SBYTE fields as per bug 43. |
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131 |
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132 |
<li> libtiff/tif_dirinfo.c: Modified the TIFF_BYTE definition for |
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133 |
TIFFTAG_PHOTOSHOP to use a writecount of TIFF_VARIABLE2 (-3) to |
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134 |
force use of uint32 counts instead of short counts. |
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135 |
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136 |
<li> libtiff/tif_dirinfo.c: moved pixar and copyright flags to |
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137 |
ensure everything is in order. |
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138 |
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139 |
<li> Integrated experimental OJPEG support from Scott Marovich of HP. |
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140 |
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141 |
<li> libtiff/tif_open.c: Seek back to zero after failed read, |
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142 |
before writing header. |
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143 |
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144 |
<li> libtiff/tiff.h, libtiff/tif_fax3.c: added check for __LP64__ |
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145 |
when checking for 64 bit architectures as per bugzilla bug 67. |
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146 |
<li> libtiff/tif_getimage.c: Use memmove() instead of TIFFmemcpy() |
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147 |
in TIFFReadRGBATile() to avoid issues in cases of overlapping |
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148 |
buffers. See Bug 69 in Bugzilla. |
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149 |
<li> libtiff/tif_getimage.c: Don't complain for CMYK (separated) |
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150 |
images with more than four samples per pixel as per bug 73. |
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151 |
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152 |
<li> libtiff/tif_getimage.c: relax handling of contig case where |
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153 |
there are extra samples that are supposed to be ignored as per bug 75. This |
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154 |
should now work for 8bit greyscale or palletted images. |
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155 |
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156 |
<li> libtiff/tif_packbits.c: fixed memory overrun error as per bug 77. |
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157 |
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158 |
<li> libtiff/tif_getimage.c: Fixed problem with reading strips or |
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159 |
tiles that don't start on a tile boundary. Fix contributed by |
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160 |
Josep Vallverdu (from HP), and further described in bug 47. |
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161 |
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162 |
<li> libtif/tif_fax3.c: Removed #ifdef PURIFY logic, and modified to |
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163 |
always use the "safe" version, even if there is a very slight |
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164 |
cost in performance as per bug 54. |
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165 |
<li> libtiff/tif_lzw.c: added dummy LZWSetupEncode() to report an |
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166 |
error about LZW not being available. |
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167 |
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168 |
<li> libtiff/tif_dir.c: propagate failure to initialize compression |
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169 |
back from TIFFSetField() as an error status, so applications can |
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170 |
detect failure. |
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171 |
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172 |
<li> libtiff/tif_lzw.c: Avoid MS VC++ 5.0 optimization bug as per bug 78. |
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173 |
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174 |
<li> libtiff/tif_dirwrite.c: added TIFFRewriteDirectory() function. |
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175 |
Updated TIFFWriteDirectory man page to include TIFFRewriteDirectory. |
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176 |
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177 |
<li> libtiff/tiff.h: I have created COMPRESSION_CCITT_T4, |
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178 |
COMPRESSION_CCITT_T6, TIFFTAG_T4OPTIONS and TIFFTAG_T6OPTIONS aliases |
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179 |
in keeping with TIFF 6.0 standard in tiff.h as per bug 83. |
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180 |
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181 |
<li> Added PHOTOMETRIC_ITULAB as per bug 90. |
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182 |
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183 |
</UL> |
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184 |
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185 |
<P><HR WIDTH=65% ALIGN=left> |
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186 |
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187 |
<!--------------------------------------------------------------------------> |
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188 |
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189 |
<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A> |
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191 |
<UL> |
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192 |
<li> Brent Roman contributed updated tiffcp utility (and tiffcp.1) |
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193 |
with support for extracting subimages with the ,n syntax, and also |
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194 |
adding the -b bias removal flag. |
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195 |
<li> tiff2ps.c/tiff2ps.1: Substantial changes to tiff2ps by |
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196 |
Bruce A. Mallett, including a faster encoder, fixes for level |
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197 |
2 PostScript, and support for the imagemask operator. |
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198 |
<li> fax2ps.c: Helge (libtiff at oldach.net) submitted fix |
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199 |
that corrects behaviour for non-Letter paper |
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200 |
sizes. (Bug 35) It fixes two problems: |
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201 |
<br> |
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202 |
Without scaling (-S) the fax is now centered on the page size specified |
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203 |
with -H and/or -W. Before, fax2ps was using an obscure and practially |
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204 |
useless algorithm to allocate the image relative to Letter sized paper |
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205 |
which sometime sled to useless whitespace on the paper, while at the |
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same time cutting of the faxes printable area at the opposite border. |
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207 |
<br> |
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208 |
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209 |
Second, scaling now preserves aspect ratio, which makes unusual faxes |
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210 |
(in particular short ones) print properly. |
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211 |
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212 |
<li> thumbnail.c: changed default output compression |
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213 |
to packbits from LZW since LZW isn't generally available. |
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214 |
<li> tiff2rgba.c: added -n flag to avoid emitting alpha component. Also added |
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215 |
a man page for tiff2rgba. |
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216 |
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217 |
<li> tiffcmp.c: Fixed multi samples per pixel support for ContigCompare |
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218 |
as per bug 53. |
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219 |
Updated bug section of tiffcmp.1 to note tiled file issues. |
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220 |
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221 |
<li> libtiff/tif_getimage.c: Fixed so that failure is properly |
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222 |
reported by gtTileContig, gtStripContig, gtTileSeparate and |
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223 |
gtStripSeparate as per bug 51. |
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224 |
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225 |
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226 |
</UL> |
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227 |
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228 |
<P><HR WIDTH=65% ALIGN=left> |
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229 |
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230 |
<!---------------------------------------------------------------------------> |
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231 |
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232 |
<A NAME="lzwkit"><B><FONT SIZE=+3>C</FONT>HANGES IN THE LZW COMPRESSION KIT:</B></A> |
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233 |
<UL> |
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234 |
<LI> Rewrote lzw patching process so that is required to enable full |
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235 |
LZW support is to drop the tif_lzw.c from the |
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236 |
libtiff-lzw-compression-kit over the one in the libtiff directory. |
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237 |
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238 |
<LI> Some changes were made to make recovery from failure to |
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239 |
initialize the LZW compressor more graceful. |
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240 |
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241 |
<LI> Note that as distributed libtiff support LZW decompression, but |
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242 |
not LZW compression. |
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243 |
</UL> |
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244 |
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<!---------------------------------------------------------------------------> |
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246 |
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247 |
<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A> |
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248 |
<UL> |
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249 |
<li> Fixed distribution to include contrib/addtiffo/tif_ovrcache.{c,h}.
|
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250 |
</UL> |
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251 |
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<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR> |
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253 |
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254 |
<HR> |
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255 |
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256 |
Last updated $Date: 2004/11/26 14:37:20 $. |
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257 |
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</BODY> |
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</HTML> |