-Changes in TIFF v3.6.0 -

From d479dd1aab1c1cb907932c6595b0ef33523fc797 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 6 Nov 2015 07:14:47 +0100 Subject: Imported Upstream version 1.8.3 --- tiff/html/v3.6.0.html | 434 -------------------------------------------------- 1 file changed, 434 deletions(-) delete mode 100755 tiff/html/v3.6.0.html (limited to 'tiff/html/v3.6.0.html') diff --git a/tiff/html/v3.6.0.html b/tiff/html/v3.6.0.html deleted file mode 100755 index 4d65197..0000000 --- a/tiff/html/v3.6.0.html +++ /dev/null @@ -1,434 +0,0 @@ - - - -Changes in TIFF v3.6.0 - - - - - - - - -TIFF CHANGE INFORMATION - - -

Current Version

Previous Version

v3.5.7

Master FTP Site

-ftp.remotesensing.org

Master HTTP Site

-http://www.remotesensing.org/libtiff

- -

-This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

Major Changes -
Changes in the software configuration -
Changes in libtiff -
Changes in the tools -
Changes in the contrib area -
Changes in the LZW compression kit -

- - - -MAJOR CHANGES: - -

New utility raw2tiff -for converting raw rasters into TIFF files. -
Lots of new tiff2ps options. -
Lots of new fax2tiff options. -
Lots of bug fixes for LZW, JPEG and OJPEG compression. -

- -

Custom Tag Support

- -The approach to extending libtiff with custom tags has changed radically. -Previously, all internally supported TIFF tags had a place in the -private TIFFDirectory structure within libtiff to hold the values (if read), -and a "field number" (ie. FIELD_SUBFILETYPE) used to identify that tag. -However, every time a new tag was added to the core, the size of the -TIFFDirectory structure would changing, breaking any dynamically linked -software that used the private data structures.

- -Also, any tag not recognised -by libtiff would not be read and accessable to applications without some -fairly complicated work on the applications part to pre-register the tags -as exemplified by the support for "Geo"TIFF tags by libgeotiff layered on -libtiff.

- -Amoung other things this approach required the extension code -to access the private libtiff structures ... which made the higher level -non-libtiff code be locked into a specific version of libtiff at compile time. -This caused no end of bug reports!

- -The new approach is for libtiff to read all tags from TIFF files. Those that -aren't recognised as "core tags" (those having an associated FIELD_ value, -and place for storage in the TIFFDirectory structure) are now read into a -dynamic list of extra tags (td_customValues in TIFFDirectory). When a new -tag code is encountered for the first time in a given TIFF file, a new -anonymous tag definition is created for the tag in the tag definition list. -The type, and some other metadata is worked out from the instance encountered. -These fields are known as "custom tags".

- -Custom tags can be set and fetched normally using TIFFSetField() and -TIFFGetField(), and appear pretty much like normal tags to application code. -However, they have no impact on internal libtiff processing (such as -compression). Some utilities, such as tiffcp will now copy these custom -tags to the new output files.

- -As well as the internal work with custom tags, new C API entry points -were added so that extension libraries, such as libgeotiff, could -define new tags more easily without accessing internal data structures. -Because tag handling of extension tags is done via the "custom fields" -mechanism as well, the definition provided externally mostly serves to provide -a meaningful name for the tag. - -The addition of "custom tags" and the altered approach to extending libtiff -with externally defined tags is the primary reason for the shift to the -3.6.x version number from 3.5.x.

- -

- - -CHANGES IN THE SOFTWARE CONFIGURATION: - -

configure, config.site: Fix for large files (>2GiB) support. New -option in the config.site: LARGEFILE="yes". Should be enougth for the large -files I/O. - -
configure: Set -DPIXARLOG_SUPPORT option along with -DZIP_SUPPORT. - -
html/Makefile.in: Updated to use groffhtml for generating html pages -from man pages. - -
configure, libtiff/Makefile.in: Added SCO OpenServer 5.0.6 support -from John H. DuBois III. - -
libtiff/{Makefile.vc, libtiff.def}: Missed declarations added. - -
libtiff/Makefile.in, tools/Makefile.in: Shared library will not be -stripped when installing, utility binaries will do be stripped. As per bug 93. - -
man/Makefile.in: Patch DESTDIR handling as per bug 95. - -
configure: OpenBSD changes for Sparc64 and DSO version as per bug 96. - -
config.site/configure: added support for OJPEG=yes option to enable -OJPEG support from config.site. - -
config.guess, config.sub: Updated from ftp.gnu.org/pub/config. - -
configure: Modify CheckForBigEndian so it can work in a cross -compiled situation. - -
configure, libtiff/Makefile.in: Changes for building on MacOS 10.1 -as per bug 94. - -
html/Makefile.in: added missing images per bug 92. - -
port/Makefile.in: fixed clean target per bug 92. -

- -

- - - -CHANGES IN LIBTIFF: - -

libtiff/tif_getimage.c: New function TIFFReadRGBAImageOriented() -implemented to retrieve raster array with user-specified origin position. - -
libtiff/tif_fax3.c: Fix wrong line numbering. - -
libtiff/tif_dirread.c: Check field counter against number of fields. - -
Store a list of opened IFD to prevent directory looping. - -
libtiff/tif_jpeg.c: modified segment_height calculation to always -be a full height tile for tiled images. Also changed error to just -be a warning. - -
libtiff/tif_lzw.c: fixed so that decoder state isn't allocated till -LZWSetupDecode(). Needed to read LZW files in "r+" mode. - -
libtiff/tif_dir.c: fixed up the tif_postdecode settings responsible -for byte swapping complex image data. - -
libtiff/tif_open.c: Removed error if opening a compressed file -in update mode bug (198). - -
libtiff/tif_write.c: TIFFWriteCheck() now fails if the image is -a pre-existing compressed image. That is, image writing to pre-existing -compressed images is not allowed. - -
html/man/*.html: Web pages regenerated from man pages. - -
libtiff/tif_jpeg.c: Hack to ensure that "boolean" is defined properly -on Windows so as to avoid the structure size mismatch error from libjpeg -(bug 188). - -
libtiff/tiff.h: #ifdef USING_VISUALAGE around previous Visual Age -AIX porting hack as it screwed up gcc. (bug 39) - -
libtiff/tiff.h: added COMPRESSION_JP2000 (34712) for LEAD tools -custom compression. - -
libtiff/tif_dirread.c: Another fix for the fetching SBYTE arrays -by the TIFFFetchByteArray() function. (bug 52) - -
libtiff/tif_dirread.c: Expand v[2] to v[4] in TIFFFetchShortPair() -as per bug 196. - -
libtiff/tif_lzw.c: Additional consistency checking added in -LZWDecode() and LZWDecodeCompat() fixing bugs 190 and 100. - -
libtiff/tif_lzw.c: Added check for valid code lengths in LZWDecode() -and LZWDecodeCompat(). Fixes bug 115. - -
tif_getimage.c: Ensure that TIFFRGBAImageBegin() returns the -return code from the underlying pick function as per bug 177. - -
libtiff/{tif_jpeg.c,tif_strip.c,tif_print.c}: Hacked tif_jpeg.c to -fetch TIFFTAG_YCBCRSUBSAMPLING from the jpeg data stream if it isn't -present in the tiff tags as per bug 168. - -
libtiff/tif_jpeg.c: Fixed problem with setting of nrows in -JPEGDecode() as per bug 129. - -
libtiff/tif_read.c, libtiff/tif_write.c: TIFFReadScanline() and -TIFFWriteScanline() now set tif_row explicitly in case the codec has -fooled with the value as per bug 129. - -
libtiff/tif_ojpeg.c: Major upgrade from Scott. Details in bug 156. - -
libtiff/tif_open.c: Pointers to custom procedures -in TIFFClientOpen() are checked to be not NULL-pointers. - -
libtiff/tif_lzw.c: Assertions in LZWDecode and LZWDecodeCompat -replaced by warnings. Now libtiff should read corrupted LZW-compressed -files by skipping bad strips as per bug 100. - -
libtiff/: tif_dirwrite.c, tif_write.c, tiffio.h: -TIFFCheckpointDirectory() -routine added as per bug 124. The -TIFFWriteDirectory -man page discusses this new function as well as the related -TIFFRewriteDirectory(). - -
libtiff/: tif_codec.c, tif_compress.c, tiffiop.h, tif_getimage.c: -Introduced -additional members tif->tif_decodestatus and tif->tif_encodestatus -for correct handling of unconfigured codecs (we should not try to read -data or to define data size without correct codecs). See bug 119. - -
tif_dirread.c: avoid div-by-zero if rowbytes is zero in chop func as -per bug 111. - -
libtiff/: tiff.h, tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_dirread.c, -tif_dirwrite.c: Dwight Kelly added get/put code for new tag XMLPACKET as -defined in Adobe XMP Technote. Added missing INKSET tag value from TIFF 6.0 -spec INKSET_MULTIINK (=2). Added missing tags from Adobe TIFF technotes: -CLIPPATH, XCLIPPATHUNITS, YCLIPPATHUNITS, OPIIMAGEID, OPIPROXY and -INDEXED. Added PHOTOMETRIC tag value from TIFF technote 4 ICCLAB (=9). - -
libtiff/tif_getimage.c: Additional check for supported codecs added in -TIFFRGBAImageOK, TIFFReadRGBAImage, TIFFReadRGBAStrip and TIFFReadRGBATile now -use TIFFRGBAImageOK before reading a per bug 110. - -
libtiff/: tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_dirread.c, -tif_dirwrite.c: Added routine -TIFFDataWidth for determining -TIFFDataType sizes instead of working with tiffDataWidth array -directly as per bug 109. - -
libtiff/: tif_dirinfo.c, tif_dirwrite.c: Added possibility to -read broken TIFFs with LONG type used for TIFFTAG_COMPRESSION, -TIFFTAG_BITSPERSAMPLE, TIFFTAG_PHOTOMETRIC as per bug 99. - -
libtiff/{tiff.h,tif_fax3.c}: Add support for __arch64__ as per bug 94. - -
libtiff/tif_read.c: Fixed TIFFReadEncodedStrip() to fail if the -decodestrip function returns anything not greater than zero as per bug 97. - -
libtiff/tif_jpeg.c: fixed computation of segment_width for -tiles files to avoid error about it not matching the -cinfo.d.image_width values ("JPEGPreDecode: Improper JPEG strip/tile -size.") for ITIFF files. Apparently the problem was incorporated since -3.5.5, presumably during the OJPEG/JPEG work recently. - -
libtiff/tif_getimage.c: If DEFAULT_EXTRASAMPLE_AS_ALPHA is 1 -(defined in tiffconf.h - 1 by default) then the RGBA interface -will assume that a fourth extra sample is ASSOCALPHA if the -EXTRASAMPLE value isn't set for it. This changes the behaviour of -the library, but makes it work better with RGBA files produced by -lots of applications that don't mark the alpha values properly. -As per bugs 93 and 65. - -
libtiff/tif_jpeg.c: allow jpeg data stream sampling values to -override those from tiff directory. This makes this work with -ImageGear generated files. - -

- -

- - - -CHANGES IN THE TOOLS: - -

tiff2ps: Added page size setting -when creating PS Level 2. - -
tiff2ps: Fixed PS comment emitted when -FlateDecode is being used. - -
tiffsplit: increased the maximum -number of pages that can be split. - -
raw2tiff: Added option `-p' to -explicitly select color space of input image data. - -
tiffmedian: Suppiort for large -(> 2GB) images. - -
ppm2tiff: Fixed possible endless loop. - -
tiff2rgba: Switched to use -TIFFReadRGBAImageOriented() -instead of TIFFReadRGBAImage(). - -
tiffcmp: Fixed problem with unused data -comparing (bug 349). `-z' option now can be used to set the number of reported -different bytes. - -
tiffcp: Added possibility to specify -value -1 to -r option to get the entire image as one strip (bug 343). - -
tiffcp: Set the correct RowsPerStrip -and PageNumber values (bug 343). - -
fax2tiff: Page numbering fixed (bug -341). - -
ppm2tiff: PPM header parser improved: -now able to skip comments. - -
tiff2ps: Force deadzone printing when -EPS output specified (bug 325). - -
tiff2ps: Add ability to generate -PS Level 3. It basically allows one to use the /flateDecode filter for ZIP -compressed TIFF images. Patch supplied by Tom Kacvinsky (bug 328). - -
tiffcp: Fixed problem with colorspace -conversion for JPEG encoded images (bugs 23 and 275) - -
fax2tiff: Applied patch from -Julien Gaulmin. More switches for fax2tiff tool for better control -of input and output (bugs 272 and 293). - -
raw2tiff: -New utility for turning raw raster images into TIFF files -written by Andrey Kiselev. - -
tiff2ps: -Sebastian Eken provided patches (bug 200) to add new these new -switches: -
- -b #: for a bottom margin of # inches -
- -c: center image -
- -l #: for a left margin of # inches -
- -r: rotate the image by 180 degrees -
- -Also, new features merged with code for shrinking/overlapping. - -
tiff2ps: Don't emit BeginData/EndData -DSC comments since we are unable to properly include the amount to skip -as per bug 80. - -
tiff2ps: Added workaround for some -software that may crash when last strip of image contains fewer number -of scanlines than specified by the `/Height' variable as per bug 164. - -
tiff2ps: Patch from John Williams to add new -functionality for tiff2ps utility splitting long images in several pages as -per bug 142. New switches: -
- -H #: split image if height is more than # inches -
- -L #: overLap split images by # inches -
- -
tiff2ps: New commandline -switches to override resolution units obtained from the input file per bug 131: -
- -x: override resolution units as centimeters -
- -y: override resolution units as inches -
- -
fax2tiff: Updated to reflect -latest changes in libtiff per bug 125. - -
tiff2ps: Division by zero fixed as per bug 88. - -
tiffcp : -Added support for 'Orientation' tag. - -
tiffdump: -include TIFFTAG_JPEGTABLES in tag list. - -
tiffset: fix bug in error reporting. - -

- -

- - - -CHANGES IN THE CONTRIB AREA: -

Fixed distribution to include contrib/addtiffo/tif_ovrcache.{c,h}. -
libtiff/contrib/win95: renamed to contrib/win_dib. Added new -Tiffile.cpp example of converting TIFF files into a DIB on Win32 as per -bug 143. - -

- - - -CHANGES IN THE LZW COMPRESSION -KIT: -

LZW compression kit synchronized with actual libtiff version. - -

- -

TIFF home page.
- -

- -Last updated $Date: 2003-10-04 11:38:17 $. - - - -- cgit v1.2.3