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(built with libpng-1.4.2 and zlib-1.2.5)
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Also add some patches to remove use of deprecated symbols and fix other
problems when looking for or compiling against libpng-1.4.x.
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* Added missing "(...)" in png_get_uint_32().
* Only compile png_get_uint_32(), etc., when PNG_LIBPNG_VER < 1.2.9
* Revised help info for "-zitxt".
Changes 1.7.9:
* Defined TOO_FAR == 32767 in pngcrush.h (instead of in deflate.c)
* Revised the "nolib" Makefiles to remove reference to gzio.c and pnggccrd.c
Changes 1.7.8:
* Removed gzio.c
Changes 1.7.7:
* Updated bundled libpng to version 1.4.0.
* Check the "-plte_len n" option for out-of-range value of n.
* Changed local variable "write" to "z_write" in inffast.c (zlib-1.2.3.4)
to avoid shadowed declaration warning.
Changes 1.7.6:
* Change some "if defined(X)" to "ifdef X" according to libpng coding style.
* Added some defines to suppress pedantic warnings from libpng-1.2.41beta15
and later. A warning about deprecated access to png_ptr->zstream is
otherwise unavoidable. When building the embedded libpng, a warning
about png_default_error() returning is also otherwise unavoidable.
* Write premultiplied alpha if output extension is .ppng and
PNG_READ_PREMULTIPLIED_ALPHA_SUPPORTED is set (needs libpng-1.5.0).
* Check the "-m method" option for out-of-range method value.
Changes 1.7.4:
* Use unmodified pngconf.h from libpng-1.2.41beta05 or later.
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* Print contents of text chunks after IDAT, even when the -n option is used.
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* Added check for "verbose" on some printf statements.
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* Revised some prototypes to eliminate "Shadowed Declaration" warnings.
* Moved warning about discarding APNG chunks to the end.
* Replaced *.tar.lzma with *.tar.xz in the distribution.
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* Save (but do not recompress) APNG chunks if the output file has the
".apng" extension and the color_type and bit_depth are not changed.
Changes 1.6.20:
* Changed local variable "write" to "wwrite" in inffast.c (zlib) to avoid
shadowed declaration warning.
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* Added missing curly braces that caused erroneous png_error message about
"original PNG could not be recovered" in pngcrush-1.6.17 and 18.
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* Defined TOO_FAR == 32767 in deflate.c (again). The definition
has continually been inadvertently omitted during zlib updates
since pngcrush version 1.6.4.
* Revised handling of xcode files so at least we can get printout
of IHDR values with "pngcrush -fix -n -v xcode.png"
Changes 1.6.16:
* Added -newtimestamp and -oldtimestamp options and changed
default condition to timestamping the output file with
the current time (i.e., -newtimestamp is default)
* If the -oldtimestamp option is used then the output file
has the same timestamp as the input file.
* Added CgBI chunk detection.
Changes 1.6.15:
* Fixes some missing typecasts on png_malloc() calls, patch from
an anonymous reporter to the SourceForge bug tracker.
* Added -time_stamp option to change time stamping from default
condition.
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* Built with libpng 1.2.35
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* Added "-time_stamp" directive, to cause pngcrush to write a new timestamp
on the output file instead of replicating the timestame from the input file.
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* Eliminated a memory leak in libpng with writing bad tEXt chunks.
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* Add sTER chunk support.
Changes 1.6.9:
* Updated cexcept.h to version 2.0.1
* Add missing curly brackets.
Changes 1.6.8:
* Fixed bug with handling of -z and -zi options.
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Moved PNG_UINT_CHNK and some other defines from pngcrush.h to pngcrush.c
Reject invalid color_type or bit_depth.
Changes 1.6.6:
Added dSIG support. Pngcrush will not rewrite an image containing
a dSIG chunk immediately following the IHDR chunk, unless the
dSIG is explicitly removed with "-rem dSIG" or explicitly kept
with "-keep dSIG". In the latter case the saved dSIG chunks will
become invalid if any changes are made to the datastream.
Fixed bug in writing unknown chunks from the end_info_ptr.
Changes 1.6.5:
Discontinued adding a new gAMA chunk when writing sRGB chunk.
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their files via a custom do-install target.
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* Fixed bug in handling of undocumented -trns_a option.
* Fixed bug with "nosave" handling of unknown chunks.
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Version 1.6.3 (built with libpng-1.2.9beta11 and zlib-1.2.3)
Fixed documentation of iTXt input (Shlomi Tal).
Removed #define PNG_INTERNAL and provided prototypes for some
internal libpng functions that are duplicated in pngcrush.c
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* Fixed bug with "PNG_ROWBYTES" usage, introduced in version 1.6.1.
The bug could cause a crash and only affects the "nolib" builds.
* Converted C++ style (// ...) comments to C style (/* ... */).
* Defined TOO_FAR == 32767 in deflate.c (again). The definition was omitted
from version 1.6.0 when zlib was upgraded to version 1.2.3.
Changes 1.6.1:
* Copied non-exported libpng functions from libpng into pngcrush, to make
pngcrush play more nicely with shared libpng. These are ifdef'ed out when
a static library is being built with the bundled libpng and pngcrush.h is
included.
Changes 1.6.0:
* Moved ChangeLog out of pngcrush.c comments and into a separate file.
* Filtered pngcrush.c through "indent -kr" and "expand" for readability.
* Moved 550 lines of usage/help/copyright/license/version info to separate
function(s) and cleaned up significantly.
* Added some comments for ease of navigation and readability.
* Stripped out a bunch of ancient-libpng compatibility stuff.
* Defined PNG_UINT_* macros (pngcrush.h for now).
* Fixed unknown-chunk handling ("-rem alla" and "-rem gifx" now work).
* Created modified version of makefile that supports external zlib.
* Added support for methods using Z_RLE zlib strategy (zlib 1.2.x only).
* Documented -huffman option in usage screen.
* Added IDAT statistics to final per-file summary.
* Added utime() support to give output files same timestamps as input files.
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in the process. (More information on tech-pkg.)
Bump PKGREVISION and BUILDLINK_DEPENDS of all packages using libtool and
installing .la files.
Bump PKGREVISION (only) of all packages depending directly on the above
via a buildlink3 include.
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* Fixed bug, introduced in 1.5.9, that caused defaults for method 0 to be
used instead of copying the original image, when the original was already
smallest.
* Work around CPU timer wraparound at 2G microseconds.
* Upgraded zlib from 1.1.3 to 1.1.4. Pngcrush is believed not to be
vulnerable to the zlib-1.1.3 buffer-overflow bug.
* Choose the first instance of smallest IDAT instead of the last, for
faster final recompression, suggested by TSamuel.
* Added -trns_a option for entering a tRNS array.
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* Version 1.5.7 (built with libpng-1.2.0)
* Added setargv.obj to Makefile.msc to expand wildcards, e.g., *.png
* Use constant string "pngcrush" instead of argv[0] when appropriate.
* Only check stats for infile==outfile once per input file, or not at
all if "-nofilecheck" option is present or if a directory was
created.
* Fixed bugs with changing bit_depth of grayscale images.
* Version 1.5.6 (built with libpng-1.0.12)
* Eliminated extra "Removed the cHNK chunk" messages generated by
version 1.5.5 when "-rem alla" or "-rem allb" is used.
* All unknown chunks including safe-to-copy chunks are now removed in
response to the "-rem alla" or "-rem allb" options.
* Issue a warning if the user tries "-cc" option when it is not
supported.
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Reset reduce_to_gray and it_is_opaque flags prior to processing each image.
Enable removal of safe-to-copy chunks that are being handled as unknown
Added 262 to the length of uncompressed data when calculating
required_window_size, to account for zlib/deflate implementation.
Added "-bit_depth n" to the help screen.
Call png_set_packing() when increasing bit_depth to 2 or 4.
Added warning about not overwriting an existing tRNS chunk.
Reduced the memory usage
Write 500K IDAT chunks even when system libpng is being used.
Ignore all-zero gAMA and cHRM chunks, with a warning.
Added "-loco" option (writes MNG files with filter_method 64)
"-dir" and "-ext" options are no longer mutually exclusive, e.g.:
pngcrush -loco -dir Crushed -ext .mng *.png
Added "-iccp" option
Increased the zlib memory level to 9, which improves compression
Enabled the "-max max_idat_size" option, even when max_idat_size
exceeds the default 1/2 megabyte size.
Added missing "png_ptr" argument to png_error() call
Revised the "-help" output slightly and improved the "-version" output.
The "-already[_crushed]" option is now ignored if the "-force" option
is present or if chunks are being added, deleted, or modified.
Improved "things_have_changed" behavior (now, when set in a particular file, it is not set for all remaining files)
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+ move the patch digest/checksum values from files/patch-sum to distinfo
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(instead it is controlled by commandline arguments "-cc" and "-no_cc"),
and addition of the word "irrevocably" to the license.
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Changes include:
Version 1.4.8
* Detect and remove all-opaque alpha channel.
* Detect and reduce all-gray truecolor images to grayscale.
Version 1.4.7
* Restored the "-ext" option that was inadvertently overridden
with a new "-exit" option in version 1.4.6 ("-exit" is used to
force an "exit" instead of a "return" from the main program).
Version 1.4.6
* Fixed bug in color-counting of noninterlaced images.
* Added capability of processing multiple rows at a time
(disabled by default because it turns out to be no faster).
* Replaced "return" statements in main() with "exit" statements.
User can force exit instead of return with "-exit" argument.
* Added the UCITA disclaimers to the help output.
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Changes are:
* Added color-counting and palette-building capability
* Added "-fix" option, for fixing bad CRC's and other correctable
conditions.
* Write sBIT.alpha=1 when adding an opaque alpha channel and sBIT is
present.
* Identify the erroneous 2615-byte sRGB monitor profile being written by
Photoshop 5.5, which causes many apps to crash, and replace it
with an sRGB chunk.
* Added a check for input and output on different devices before
rejecting the output file as being the same as the input file
based on inode.
* Added some UCITA language to the disclaimer.
* Reduced scope of Try/Catch blocks to avoid nesting them, and removed
returns from within the Try blocks, where they are not allowed.
* Removed direct access to the png structure when possible
* Removes extra IDAT chunks (such as found in some POV-ray PNGs) with a
warning instead of bailing out.
* Removed the old setjmp interface entirely.
* RGB to Grayscale conversion is more accurate (15-bit instead of 8-bit)
and now uses only integer arithmetic.
* Changed "Compressed" to "Uncompressed" in help for -itxt.
* Stifled some compiler warnings
* Add test on stat_buf.st_size to verify fpin==fpout, because stat in
MSVC++6.0 standard version returns stat_buf.st_ino=0 for all files
* Revised pngcrush.h to make it easier to control PNG_ZBUF_SIZE and
PNG_NO_FLOATING_POINT_SUPPORTED from a makefile.
* Restored ability to enter "replace_gamma" value as a float even when
floating point arithmetic is not enabled.
* Enabled removing tEXt, zTXt, or iTXt chunks by chunk type
* Removed definition of TOO_FAR from pngcrush.h
* Uses new libpng error handler; if a file has errors, pngcrush now will
continue on and compress the remaining files instead of bailing
out.
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* Version 1.3.4 (built with libpng-1.0.5m)
* Do not allow pngcrush to overwrite the input file.
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Version 1.3.3:
- Restored ability to enter gamma as a float even when floating point
arithmetic is not enabled.
Version 1.3.2:
- Fixed "PNG_NO_FLOAING_POINT" typo in pngcrush.h
- Renamed "dirname" to "directory_name" to avoid conflict with "dirname"
that appears in string.h on some platforms.
- #ifdef'ed out parts of the help screen for options that are unsupported.
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'unknown-chunk-processor' for generic chunks, a smaller executable, and
more info about text chunks on the help screen.
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Graphics) files.
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