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libtiff/.gitignore

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Ignore generated files
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aclocal.m4
.gitignore: add patterns for build from root
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autom4te.cache
Remove autoconf/automake generated files, and add them to .gitignore
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configure
Makefile.in
config/compile
config/config.guess
config/config.sub
config/depcomp
config/install-sh
config/ltmain.sh
config/missing
config/mkinstalldirs
config/test-driver
.gitignore: add patterns for build from root
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**/Makefile
*.o
*.la
*.lo
.deps
.libs
config.log
config.status
contrib/addtiffo/addtiffo
contrib/dbs/tiff-bi
contrib/dbs/tiff-grayscale
contrib/dbs/tiff-palette
contrib/dbs/tiff-rgb
contrib/iptcutil/iptcutil
libtiff-4.pc
libtiff/mkg3states
libtiff/stamp-h1
libtiff/stamp-h2
libtiff/tif_config.h
Ignore generated files
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libtiff/tif_config.h.in
.gitignore: add patterns for build from root
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libtiff/tiffconf.h
libtool
Ignore generated files
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m4/libtool.m4
m4/ltoptions.m4
m4/ltsugar.m4
m4/ltversion.m4
m4/lt~obsolete.m4
.gitignore: add patterns for build from root
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tools/fax2ps
tools/fax2tiff
tools/pal2rgb
tools/ppm2tiff
tools/raw2tiff
add test/ files to .gitignore
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tools/rgb2ycbcr
tools/thumbnail
.gitignore: add patterns for build from root
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tools/tiff2bw
tools/tiff2pdf
tools/tiff2ps
tools/tiff2rgba
tools/tiffcmp
tools/tiffcp
tools/tiffcrop
tools/tiffdither
tools/tiffdump
add test/ files to .gitignore
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tools/tiffgt
.gitignore: add patterns for build from root
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tools/tiffinfo
tools/tiffmedian
tools/tiffset
tools/tiffsplit
add test/ files to .gitignore
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test/ascii_tag
test/custom_dir
test/long_tag
test/raw_decode
test/rewrite
test/short_tag
test/strip_rw
Make defer strile offset/bytecount loading available at runtime ... and add per-strile offset/bytecount loading capabilities. Part of this commit makes the behaviour that was previously met when libtiff was compiled with -DDEFER_STRILE_LOAD available for default builds when specifying the new 'D' (Deferred) TIFFOpen() flag. In that mode, the [Tile/Strip][ByteCounts/Offsets] arrays are only loaded when first accessed. This can speed-up the opening of files stored on the network when just metadata retrieval is needed. This mode has been used for years by the GDAL library when compiled with its embeded libtiff copy. To avoid potential out-of-tree code (typically codecs) that would use the td_stripbytecount and td_stripoffset array inconditionnaly assuming they have been loaded, those have been suffixed with _p (for protected). The use of the new functions mentionned below is then recommended. Another addition of this commit is the capability of loading only the values of the offset/bytecount of the strile of interest instead of the whole array. This is enabled with the new 'O' (Ondemand) flag of TIFFOpen() (which implies 'D'). That behaviour has also been used by GDAL, which hacked into the td_stripoffset/td_stripbytecount arrays directly. The new code added in the _TIFFFetchStrileValue() and _TIFFPartialReadStripArray() internal functions is mostly a port of what was in GDAL GTiff driver previously. Related to that, the public TIFFGetStrileOffset[WithErr]() and TIFFGetStrileByteCount[WithErr]() functions have been added to API. They are of particular interest when using sparse files (with offset == bytecount == 0) and you want to detect if a strile is present or not without decompressing the data, or updating an existing sparse file. They will also be used to enable a future enhancement where client code can entirely skip bytecount loading in some situtations A new test/defer_strile_loading.c test has been added to test the above capabilities.
2019-05-10 08:46:45 -04:00
test/defer_strile_loading
Add TIFFDeferStrileArrayWriting() and TIFFForceStrileArrayWriting() Those advanced writing functions must be used in a particular sequence to make their intended effect. Their aim is to control when/where the [Strip/Tile][Offsets/ByteCounts] arrays are written into the file. The purpose of this is to generate 'cloud-optimized geotiff' files where the first KB of the file only contain the IFD entries without the potentially large strile arrays. Those are written afterwards. The typical sequence of calls is: TIFFOpen() [ TIFFCreateDirectory(tif) ] Set fields with calls to TIFFSetField(tif, ...) TIFFDeferStrileArrayWriting(tif) TIFFWriteCheck(tif, ...) TIFFWriteDirectory(tif) ... potentially create other directories and come back to the above directory TIFFForceStrileArrayWriting(tif): emit the arrays at the end of file See test/defer_strile_writing.c for a practical example.
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test/defer_strile_writing
add test/ files to .gitignore
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test/*.log
test/*.trs
test/o-*
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