1.3.29:
Security Fixes:
GraphicsMagick is now participating in Google's oss-fuzz project due to the contributions and assistance of Alex Gaynor. Since February 4 2018, 180 issues have been opened by oss-fuzz and 173 of those issues have been resolved. The issues list is available at https://bugs.chromium.org/p/oss-fuzz/issues/list under search term "graphicsmagick". Issues are available for anyone to view and duplicate if they have been in "Verified" status for 30 days, or if they have been in "New" status for 90 days. There are too many fixes to list here. Please consult the GraphicsMagick ChangeLog file, Mercurial repository commit log, and the oss-fuzz issues list for details.
JNG: Require that the embedded JPEG image have the same dimensions as the JNG image as provided by JHDR. Avoids a heap write overflow.
MNG: Arbitrarily limit the number of loops which may be requested by the MNG LOOP chunk to 512 loops, and provide the '-define mng:maximum-loops=value' option in case the user wants to change the limit. This fixes a denial of service caused by large LOOP specifications.
Bug fixes:
Many oss-fuzz fixes are bug fixes.
DICOM: Pre/post rescale functions are temporarily disabled (until the implementation is fixed).
JPEG: Fix regression in last release in which reading some JPEG files produces the error "Improper call to JPEG library in state 201".
ICON: Some DIB-based Windows ICON files were reported as corrupt to an unexpectedly missing opacity mask image.
In-memory Blob I/O: Don't implicitly increase the allocation size due to seek offsets.
MNG: Detect and handle failure to allocate global PLTE. Fix divide by zero.
DrawGetStrokeDashArray(): Check for failure to allocate memory.
BlobToImage(): Now produces useful exception reports to cover the cases where 'magick' was not set and the file format could not be deduced from its header.
API Updates:
Wand API: Added MagickIsPaletteImage(), MagickIsOpaqueImage(), MagickIsMonochromeImage(), MagickIsGrayImage(), MagickHasColormap() based on contributions by Troy Patteson.
New structure ImageExtra added and Image 'clip_mask' member is replaced by 'extra' which points to private ImageExtra allocation. The ImageGetClipMask() function now provides access to the clip mask image.
New structure DrawInfoExtra and DrawInfo 'clip_path' is replaced by 'extra' which points to private DrawInfoExtra allocation. The DrawInfoGetClipPath() function now provides access to the clip path.
New core library functions: GetImageCompositeMask(), CompositeMaskImage(), CompositePathImage(), SetImageCompositeMask(), ImageGetClipMask(), ImageGetCompositeMask(), DrawInfoGetClipPath(), DrawInfoGetCompositePath()
Deprecated core library functions: RegisterStaticModules(), UnregisterStaticModules().
Feature improvements:
Static modules (in static library or shared library without dynamically loadable modules) are now lazy-loaded using the same external interface as the lazy-loader for dynamic modules. This results in more similarity between the builds and reduces the fixed initialization overhead by only initializing the modules which are used.
SVG: The quality of SVG support has been significantly improved due to the efforts of Greg Wolfe.
FreeType/TTF rendering: Rendering fixes for opacity.
1.3.27:
Security Fixes:
* CMYK: Fix heap overwrites in raw CMYK writer. Fix heap overwrites
in raw CMYK reader (noticed when doing montage).
* GIF: Assure that global colormap is initialized.
* DescribeImage(): Fix possible heap write overflow when describing
visual image directory. Fix possible heap read overflow while
accessing heap data, and possible information disclosure while
describing the IPTC profile.
* DICOM: Fix huge memory allocation based on bogus length value (DOS
opportunity).
* DrawDashPolygon(): Fix heap out of bounds read in render code.
* GRAY: Fix heap overwrites in raw GRAY reader (noticed when doing
montage).
* JNG: Fix heap overruns. Fix assertions.
* JNG: Prevent a crash due to zero-length color_image while reading a
JNG image. (CVE-2017-11102). Reject JNG files with unreasonable
dimensions given the file size (avoid DOS).
* JNX: Fix DOS due to excessive memory allocations with corrupt file.
* JPEG: Do not allocate backing image pixels until a scanline has been
successfully read. Avoids DOS opportunity with suitably
manufactured file.
* MAP: Fix null pointer dereference or segmentation violation.
* MAT: Fix heap write overflow.
* MNG: Reject over-large (65k by 65k) image. Fix heap overwrites.
* PAM: Fix heap buffer overflow in PAM writer for 1 bit/sample + alpha.
* PICT: Fix excessive memory allocation due to malformed image file.
* PNG: Fix heap buffer overflow in PNG writer when promoting from
indexed PNG to RGBA.
* PNM: Fix DOS due to excessive memory allocations with corrupt file.
* RGB: Fix heap overwrite in raw RGB writer. Fix heap overwrites in
raw RGB reader (noticed when doing montage).
* RLE: Fix DOS opportunities due to false claims in image header. Fix
heap out of bounds read.
* SFW: Avoid possible heap write overflow.
* SUN: Fix heap read overflow. Fix DOS due to excessive memory
allocations with corrupt file.
* SVG: Fix heap write overflow.
* TIFF: Use heuristics to avoid DOS (excessive memory use) due to
false claims by input file. It is possible that this may reject
some valid files. Fix possible small heap overwrite beyond the
allocated scanline buffer due to the NumberOfObjectsInArray() macro
rounding up rather than down.
* UIL: Fix heap overwrite in writer.
* WPG: Fix DOS issues (memory, disk space, CPU time) due to
insufficient validations. Fix heap overwrites.
* XBM: Fix DOS issue where code remains stuck in loop and does not
return.
* XV 332 (PNM): Fix null pointer dereference due to malformed file.
* TracePSClippingPath()/TraceSVGClippingPath(): Fix heap out of bounds
read.
* Validate path entries in the MAGICK_CODER_MODULE_PATH and
MAGICK_FILTER_MODULE_PATH environment variables and convert all
paths to real paths if possible. This avoids possible use of
relative paths to load modules (a possible security issue), or the
possibility of adding a directory which was in the path, but
missing, and may improve efficiency by removing non-existent paths.
Bug fixes:
* AVS: Memory leaks eliminated.
* CINEON: Fix possible use of NULL pointer.
* CMYK: Memory leaks eliminated.
* CUT: Memory leaks eliminated. Fix possible use of NULL pointer.
* DCM: Fix possible use of NULL pointer.
* DrawImage(): Avoid "negative" strncpy(). This seems to be benign
with glibc but perhaps not with other implementations.
* DPX: Memory leaks eliminated.
* EMF: Fix possible use of NULL pointer.
* FindMagickModule(): Fix possible use of NULL pointer.
* FITS: Fix memory leak.
* GIF: Fix memory leak.
* HDF: Memory leaks eliminated.
* HISTOGRAM: Fix memory leak.
* JNG: Memory leaks eliminated. Memory use after free and double-free
issues eliminated. Error reporting fixes.
* Magick::Options::strokeDashArray(): Fix possible use of NULL pointer.
* MagickXFileBrowserWidget(): Fix possible use of NULL pointer.
* MAT: Memory leaks eliminated.
* MagickMapCloneMap(): Fix possible assertion failure.
* MNG: Memory use after free issues eliminated. Fix possible use of
NULL pointer. Fix memory leaks.
* MontageImageCommand(): Fix memory leaks.
* MPC: Fix memory leak in writer.
* MPEG: Fix memory leaks in writer.
* MTV: Memory leaks eliminated.
* NTRegistryKeyLookup(): Fix possible use of NULL pointer.
* NTGetTypeList(): Fix possible use of NULL pointer.
* PCD: Memory leaks eliminated.
* PCL: Fix null pointer dereference in PCL writer.
* PCX: Memory leaks eliminated.
* PALM: Fix possible use of NULL pointer. Fix memory leak.
* PICT: Memory leaks eliminated.
* PNG: Fix small (one-off) heap read overflow.
* PNM: Fix memory leaks.
* PS: Fix use of null pointer in error path.
* PWP: Fix possible use of null pointer.
* ReplaceImageColormap(): Throw an exception rather than assertion if
the input image is not colormapped.
* RGB: Fix memory leak.
* SegmentImage(): Fix possible use of NULL pointer.
* SetImageProfile(): Fix possible assertion failure.
* SGI: Check for EOF while reading SGI file header.
* SUN: Fix memory leak.
* TIFF: Fix possible use of NULL pointer. Fix memory leaks in writer.
* TIM: Fix memory leak.
* TOPOL: Fix possible use of NULL pointer. Fix memory leaks.
* VIFF: Fix memory leak.
* WEBP: Detect partial write to output file.
* WPG: Fix possible use of null pointer. Fix excessive use of disk
resources due to insufficient validations.
* WriteImage(): Restore use of GetBlobStatus() to test if an I/O error
was encountered while writing output file. This assures that I/O
failure in writers which do not themselves verify writes is assured
to be reported.
* WMF: Memory use after free issues eliminated.
* YUV: Fix memory leaks.
New Features:
* PNG: Implemented eXIf chunk support.
* WEBP: Add support for EXIF and ICC metadata provided that at least
libwebp 0.5.0 is used.
* Magick++ Image autoOrient(): New Image method to auto-orient an
image so it looks right-side up by default.
Windows Delegate Updates/Additions:
* Libtiff is updated to libtiff 4.0.9.
Build Changes:
* JPEG/PNG: The SETJMP_IS_THREAD_SAFE definition is used to determine
if setjmp/longjmp are thread safe. If these interfaces are thread
safe, then concurrent reads/writes are possible. This definition is
false for Solaris but true for Linux. JPEG and PNG will be fully
concurrent if this definition is enabled.
Behavior Changes:
* PALM: PALM writer is disabled.
* ThrowLoggedException(): Capture the first exception at
ErrorException level or greater, or only capture exception if it is
more severe than an already reported exception.
* DestroyJNG(): This internal function is now declared static and is
removed from shared library or DLL namespace.
Security Fixes:
---------------
DPX: Fix excessive use of memory (DOS issue) due to file header claiming large image dimensions but insufficient backing data. (CVE-2017-10799).
JNG: Fix memory leak when reading invalid JNG image (CVE-2017-8350).
MAT: Fix excessive use of memory (DOS issue) due to continuing processing with insufficient data and claimed large image size. Verify each file extent to make sure that it is within range of file size. (CVE-2017-10800).
META: Fix heap overflow while parsing 8BIM chunk (CVE-2016-7800).
PCX: Fix denial of service issue.
RLE: Fix abnomally slow operation (denial of service issue) with intentionally corrupt colormapped file.
PICT: Fix possible buffer overflow vulnerability given suitably truncated input file.
PNG: Enforce spec requirement that the dimensions of the JPEG embedded in a JDAT chunk must match the JHDR dimensions (CVE-2016-9830).
PNG: Avoid NULL dereference when MAGN chunk processing fails.
SCT: Fix stack-buffer read overflow (underflow?) while reading SCT header.
SGI: Fix denial of service issues. Delay large memory allocations until file header has fully passed sanity checks.
TIFF: Fix out of bounds read when reading CMYKA TIFF which claims to have only 2 samples per pixel (CVE-2017-6335).
TIFF: Fix out of bounds read when reading RGB TIFF which claims to have only 1 sample per pixel (CVE-2017-10794).
WPG: Fix heap overflow (CVE-2016-7996). Fix assertion crash (CVE-2016-7997).
Bug fixes:
----------
DifferenceImage(): Fix Fix all-black difference image if an input file is colormapped.
EXIF orientation was not being properly detected for some files.
-frame: The import command -frame handling was improperly implemented and was using already freed data.
GIF: Fixes for "Excessive LZW string data" problem.
Magick++: Bug fixes to PathSmoothCurvetoRel::operator() and PathSmoothCurvetoRel::operator().
PAM: Support writing GRAYSCALE PAM format.
PNG: Fix memory leaks.
SVG: Fixed a memory leak. Fixed a possible null pointer dereference.
TclMagick: Problem that TkMagick could not resolve functions from TclMagick under Linux is fixed.
TclMagick: Fix parser validatation in magickCmd() to avoid crash given a syntax error.
TIFF: Fix for reading old JPEG files (avoids "Improper call to JPEG library in state 0. (LibJpeg).").
TXT: Fixed memory leak.
XCF: Error checking is improved.
New Features:
-------------
EXIF rotation: Support is added such that the EXIF orientation tag is updated when the image is rotated.
MAT: Now support reading multiple images from Matlab V4 format.
Magick++: Orientation method now updates orientation in EXIF profile, if it exists.
Magick++: Added Image attribute method which accepts a 'char *' argument, and will remove the attribute if the value argument is NULL.
-orient: The -orient command line option now also updates the orientation in the EXIF profile, if it exists.
PGX: Support PGX JPEG 2000 format for reading and writing (within the bounds of what JasPer supports).
Wand API: Added MagickAutoOrientImage(), MagickGetImageOrientation(), MagickSetImageOrientation(), MagickRemoveImageOption(), and MagickClearException().
1.3.25 (September 5, 2016)
==========================
Special Issues:
* None
Security Fixes:
* EscapeParenthesis(): I was notified by Gustavo Grieco of a heap
overflow in EscapeParenthesis() used in the text annotation code.
While not being able to reproduce the issue, the implementation of
this function is completely redone.
* Utah RLE: Reject truncated/absurd files which caused huge memory
allocations and/or consumed huge CPU. Problem was reported by
Agostino Sarubbo based on testing with AFL.
* SVG/MVG: Fix another case of CVE-2016-2317 (heap buffer overflow) in
the MVG rendering code (also impacts SVG).
* TIFF: Fix heap buffer read overflow while copying sized TIFF
attributes. Problem was reported by Agostino Sarubbo based on
testing with AFL.
Bug fixes:
* GetToken(): Fix obscure bug (read beyond end of string buffer)
noticed while parsing a MVG file. This problem was reported by
Gustavo Grieco.
* MVG rendering: Fix undesired hard errors when some objects were
drawn outside of the image bounds. Requests to draw objects
entirely outside of the image should be silently ignored.
* MVG/SVG rendering: Fix gradient size sanity checks which were
causing gradient requests to fail. Due to a design weakness in that
gradient images allocate resources rather than being computations at
point of use, the maximum gradient image size is now hard-limited to
5000x5000 pixels until the design problem is fixed. Some SVG icons
(as small as 8x8 pixels) authored using Inkscape request absurdly
huge gradients. Gradient sizes as large as 20,000x20,000 have been
observed in SVG icon files delivered by packages on an Ubuntu Linux
system.
* SVG: Fix some memory leaks which occur on parsing error.
New Features:
* None
Feature improvements:
* ElapsedTime(): Use clock_gettime() (when available with default
linkage) to obtain elapsed time.
* DescribeImage(): Provide 6 digits of seconds precision in in elapsed
time output. Previously the resolution was rounded up to a full
second.
Windows Delegate Updates/Additions:
* webp: Updated bundled libwebp to release 0.5.1.
* libxml: Updated bundled libxml2 to release 2.9.4.
* lcms: Updated bundled lcms2 to release 2.8.
* png: Update bundled libpng to release 1.6.24.
Build Changes:
* OpenMP is properly configured for clang 3.8 using its own '-lomp'
rather than '-lgomp'.
Behavior Changes:
* SVG: Some SVG files may be rejected due to absurdly large gradient
requests.
* The 'identify' and 'info' functionality only shows the pixel read
rate if image was not read in 'ping' mode. Provide 6 digits of
seconds precision in in elapsed time output.
1.3.24 (May 30, 2016)
==========================
.. _`GCC bug 53967` : http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
Special Issues:
* A shell exploit (CVE-2016-5118) was discovered associated with a
filename syntax where file names starting with '|' are intepreted as
shell commands executed via popen(). Insufficient sanitization in
the SVG and MVG renderers allows such filenames to be passed through
from potentially untrusted files. There might be other ways for
untrusted inputs to produce such filenames. Due to this issue,
support for the feature is removed entirely.
* A shell exploit was discovered associated with the gnuplot delegate
and which is triggered by the 'gplt' entry in delegates.mgk. A
remote exploit is possible if the attacker can cause a provided SVG
or MVG file to be rendered (or the user opens a provided file). The
gnuplot program must be installed in order for the exploit to be
successful. It is strongly recommended to remove this entry in all
delegates.mgk files.
* Due to `GCC bug 53967`_, several key agorithms (e.g. convolution)
may execute much faster (e.g. 2-3X) for x86-64 and/or when SSE is
enabled for floating point math (`-mfpmath=sse`) if the GCC option
`-frename-registers` is used. Default 32-bit builds do not
experience the problem since they use '387 math. It is not clear in
what version of GCC this problem started but it was not noticed by
the developers until the GCC 4.6 timeframe. Other compilers do not
suffer from this bug. Please lobby the GCC project to fix this
embarrassing performance bug.
Security Fixes:
* BLOB: Remove support for reading input from a shell command, or
writing output to a shell command, by prefixing the specified
filename (containing the command) with a '|'. This feature provided
a remote shell execution opportunity.
* DIB: Fixed out of bounds reads. Added more header validations.
* JNG: File size limits are enforced.
* MAT: Fixed denial of service opportunity. Fix hang on corrupt deflate stream.
* META: Fixed out of bounds reads and writes.
* MIFF: Fixed thrown assertion.
* MSL: Ignore the file extension on MSL files. It is necessary to add
a "msl:" prefix to MSL files to read the as an image.
* MVG: No longer assume that files ending with extension ".mvg" are
MVG files. MVG parsing does more validity checking on its input.
Assure that enough PrimitiveInfo structures are allocated in advance
to support a given vector path (heap overflow problem).
* PCX: Fixed unreasonable memory allocation due to intentionally
corrupt file.
* PDB: Fixed a heap buffer overflow and out of bounds read.
* PICT: Fixed an out of bounds write.
* PS: Ghostscript is now always run with -dSAFER for safer execution.
* PSD: Fixed segmentation violations, heap buffer overflows, and out
of bounds writes.
* RLE: Fixed out of bounds reads and writes.
* ReadImages(): Fixed a possible infinite recursion due to a crafted input file.
* RotateImage(): Fixed thrown assertion.
* SGI: Fixed out of bounds writes.
* SUN: Fixed out of bounds reads and writes.
* SVG: Fixed heap and stack buffer overflows, as well as segmentation
violations (CVE-2016-2317 and CVE-2016-2318). Also fixed endless
loop, unexpectedly large memory allocation, divide by zero, and
recursion issues.
* TIFF: Fixed an assertion while reading. Fixed benign heap overflow.
* TMP: Adding a "tmp:" prefix to a filename no longer removes the file
since this seems dangerous.
* VIFF: Fix excessive memory allocation with intentionally corrupted input file.
* XCF: Fixed a heap buffer overflow.
* XPM: Fixed several heap buffer overflows, and out of bound
reads/writes. Also fixed a case of excessive memory allocation.
* delegate.mgk: The default delegate.mgk file has been pared down in
order to reduce security exposure.
* gnuplot ('gplt' delegate in delegates.mgk): Support for rendering
gnuplot files is removed since the format is inherently insecure.
* File names: File names starting with a '|' character are no longer
interpreted as shell commands to be executed as input or output.
Bug fixes:
* BMP: Fix reading 24-bit Microsoft BMP which claims to have a
colormap.
* FILE: `file://` URLs are properly supported now (they never worked
before).
* JP2: It is now possible to write lossless JPEG 2000 "JP2" format.
* SVG: Support font-size "medium".
New Features:
* Blob I/O C APIs: Added signed versions of short and long Read/Write
functions.
* FILE: `file://` URLs are properly supported now (they never worked
before).
* MAT: Matlab V4 is now partially supported.
* Magick++: Added double-precision xResolution() and yResolution()
methods to support setting the horizontal and vertical resolution
with double floating point precision.
* Mogrify now supports a -preserve-timestamp option to preserve file
access and modification timestamps.
Feature improvements:
Windows Delegate Updates/Additions:
* Updated bundled libpng to release 1.6.19.
* Updated bundled libwebp to release 0.4.4.
* Update bundled libxml2 to release 2.9.3.
* Update bundled freetype to release 2.6.2.
Build Changes:
* Added ``--enable-broken-coders`` configure option to enable file
format support which may be broken or cause security issues. The
PSD format is now classified as "broken" (until it is fixed).
Behavior Changes:
* PSD format is not included in the build by default.
* Files ending with ".mvg" and ".msl" are not assumed to be image
files by default.
* File names starting with '|' are no longer treated as shell
commands.
* Gnuplot and POV delegate support is removed from the default
delegate.mgk file.
The find-prefix infrastructure was required in a pkgviews world where
packages installed from pkgsrc could have different installation
prefixes, and this was a way for a dependency prefix to be determined.
Now that pkgviews has been removed there is no longer any need for the
overhead of this infrastructure. Instead we use BUILDLINK_PREFIX.pkg
for dependencies pulled in via buildlink, or LOCALBASE/PREFIX where the
dependency is coming from pkgsrc.
Provides a reasonable performance win due to the reduction of `pkg_info
-qp` calls, some of which were redundant anyway as they were duplicating
the same information provided by BUILDLINK_PREFIX.pkg.
Special Issues:
* Due to GCC bug 53967, several key agorithms (e.g. convolution) may execute much faster (e.g. 2-3X) for x86-64 and/or when SSE is enabled for floating point math (-mfpmath=sse) if the GCC option -frename-registers is used. Default 32-bit builds do not experience the problem since they use '387 math. It is not clear in what version of GCC this problem started but it was not noticed by the developers until the GCC 4.6 timeframe. Other compilers do not suffer from this bug. Please lobby the GCC project to fix this embarrassing performance bug.
* Magick++: Any libraries or applications using Magick++ should be rebuilt in order to use this new release. Libraries and applications will be able to continue to use prior versions of Magick++ without being re-built, while benefiting from updated C libraries, provided that the system supports library versioning.
Security Fixes:
* General Coverity fixes. Some might have security consequences.
* Ghostscript options concatenation is more secure against buffer overflow.
* Windows: Built-in random number generator is now salted using CryptGenRandom(). This improves the robustness of the temporary file allocator.
Bug fixes:
* ...
Special Issues:
Due to GCC bug 53967, several key agorithms (e.g. convolution) may execute much faster (e.g. 2-3X) for x86-64 and/or when SSE is enabled for floating point math (-mfpmath=sse) if the GCC option -frename-registers is used. Default 32-bit builds do not experience the problem since they use '387 math. It is not clear in what version of GCC this problem started but it was not noticed by the developers until the GCC 4.6 timeframe. Other compilers do not suffer from this bug. Please lobby the GCC project to fix this embarrassing performance bug.
Bug fixes:
Compilation: No longer undefine __attribute__ since this may be used by system or compiler headers and cause problems.
BMP: Alpha channel from BMP3 format was inverted.
PNG: Fix round-trip repeatability issue (due to rounding algorithm) with modern versions of libpng. Prefer the less accurate method which does not alter the image.
PNG: Fix some memory leaks in error-handling paths.
PNM: Scaling of alpha in sub-ranged pixels is fixed.
Wand API: Removed development debug fprintf which causes each drawing primitive to be printed to stderr.
PS, PS2, PS3, PDF: Only use resolution from image or -density if units was properly specified. Without units, resolution is worthless.
PS, PS2, PS3, PDF: Use resolution from image if it appears to be valid.
WebP: Fix inverted return status which caused failure to be reported instead of success.
Rotation clipping/shearing errors for short wide images at some angles is fixed.
-geometry: Deal with resize geometry missing width or height (e.g. '640x' or 'x480') by substituting the missing value with one which preserves the image aspect ratio. This has been documented to be supported since almost the dawn of GraphicsMagick but was not actually supported until now.
-geometry: Support '>' and '<' qualifiers with '@' qualifier to specify if image should be resized if larger or lesser than given area specification.
New Features:
Wand API: MagickSetImageGravity() - New function to set image gravity.
Wand API: MagickGetImageGravity() - New function to get image gravity.
Wand API: MagickSetImageMatte() - New function to set the image matte channel enable flag.
Wand API: MagickGetImageMatte() - New function to read the image matte channel enable flag.
Wand API: MagickSetImageGeometry() - New function to set the image geometry string.
Wand API: MagickGetImageGeometry() - New function to get the image geometry string.
Wand API: MagickOperatorImageChannel() - New function to apply an operator to an image channel.
Magick++ API: New Image::thumbnail() method for fast image resizing, particularly to make thumbnails.
Core C API: Added SetLogMethod() to allow an application/library to specify a function to be called for logging.
Clang/LLVM: Provide support for clang/llvm attribute and builtin specifiers similar to that provided for GCC.
OpenMP: OpenMP native locking and thread specific data is supported via a configuration option (is not the default). This offers a "pure" OpenMP compilation mode. No real value for this compilation mode has been observed yet but it seems worthy to support.
Coders: Added BrokenCoderClass to mark coders which often malfunction or are not very useful in their current condition.
Composition: Added HardLight composition operator, which is now used by PSD and XCF formats, and available via command line, Magick++ API, PerlMagick API, and Wand API.
Composition: Added ScreenCompositePixels composition operator.
Composition: Added missing Photoshop separable compositing operations, Overlay, Exclusion, ColorBurn, ColorDodge, SoftLight, LinearBurn, LinearDodge, LinearLight, VividLight, PinLight, HardMix.
+set: Command line utilities now support +set to remove an existing image attribute.
-format: Support additional format specifiers 'g', 'A', 'C', 'D', 'G', 'H', 'M', 'O', 'P', 'Q', 'T', 'U', 'W', 'X', and '@', similar to the major brand.
-operator: New quantum operators ThresholdBlackNegateQuantumOp and ThresholdWhiteNegateQuantumOp These correspond to -operator "Threshold-Black-Negate" and "Threshold-White-Negate".
TIFF: Now support setting the TIFF "Software" tag for users who do not want to admit to using GraphicsMagick.
WebP: All of the WebP encoder encoder options are now supported by -define arguments.
Feature improvements:
Pixel interpolation quality is greatly improved, with minimal impact on performance. Pixel interpolation now also works well given an alpha channel.
WebP: WebP support is now prepared to compile with most WebP library versions and supports all features except for those pertaining to "RIFF" container support.
Performance Improvements:
Non-integral image rotation performance has been improved by about 40%, with lower memory usage as well.
GradientImage: Update image is_grayscale and is_monochrome flags based on gradient color properties.
Windows Delegate Updates/Additions:
PNG: Libpng 1.6.12 - June 12, 2014.
JPEG: libjpeg 9a of January 19, 2014.
FreeType: FreeType 2.5.3 of March 6, 2014.
WebP: webp 0.4.0 of January 20, 2013.
zlib: zlib 1.2.8 of April 28, 2013.
Build Changes:
--without-threads no longer disables use of OpenMP. Use the already existing option --disable-openmp to disable OpenMP.
Makefiles: Include paths are now exceedingly pedantic to make sure that only the required directories are included.
VisualMagick configure: Improve configure program so that it is possible to select QuantumDepth, OpenMP, and 64-bit build via configure dialog boxes as well as options on the command line. Also automatically detects and deals with similarly named files in subdirectories so that WebP support can now build successfully.
Behavior Changes:
MultiplyCompositePixels: Multiply composition now uses SVG interpretation of how alpha should be handled. No longer does a simple multiply of alpha channel.
Composition: The Difference, Darken, Lighten, and HardLight composition operators were modified to support alpha in their computations.
PNG: Using -optimize no longer triggers palette and depth optimizations since their implementations have been problematic.
mail, add -frename-registers to CFLAGS when building with GCC 4.* on x86_64
to work around GCC bug 53967 and gain a 2-3X speedup in certain sections.
Bump PKGREVISION.
Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
Security Fixes:
EPT: Fix crash observed when Ghostscript fails to produce useful output. This was particularly noticeable when Ghostscript was not installed. This crash could be used to cause denial of service.
PNG: With libpng 1.6.X, avoid a crash while copying a PNG with a "known incorrect ICC profile". This crash could be used to cause denial of service.
Bug fixes:
Build: Fix cross-compilation for MinGW64 on Linux build machine.
Build: configure FreeType test no longer insists that <freetype/freetype.h> can be included.
CMS profile: Only delete the CMS transform if it is non-null. Fixes assersion observed when lcms returned a null profile and GraphicsMagick attempted to deallocate it.
Drawing: Improve error handling logic so that drawing returns quickly on pixel access errors rather than plowing on ahead. This avoids problems with SVGs which take seemingly forever to render.
Drawing via C/C++ APIs: BevelJoin no longer causes a MVG parsing error.
EPT: Fix crash observed when Ghostscript fails to produce useful output. This was particularly noticeable when Ghostscript was not installed.
OpenMP: Revert use of omp_set_dynamic() since it caused performance issues when using GCC's GOMP implementation and the number of threads to use is specified.
EXIF profile: Support the SubjectArea EXIF tag.
MIFF writer: PseudoClass format was written incorrectly for depth greater than 8.
MIFF writer: RLE compressed format used inverted alpha from the other subformats and contrary to the MIFF specification.
MIFF reader: Fixes Fixes to be able to read MIFF written by ImageMagick 6.X, including DirectClass grayscale images (except for RLE compressed).
Mosaic: Fixed unsigned underflow problem with -mosaic when page offset is negative and exceeds image width or height, resulting in assertions, out of memory errors, or pixel cache limit errors.
PDF: Consistently initialize Image page width and height to image width and height. While general to all of GraphicsMagick, this change is to assure that the PDF writer computes page dimensioning consistently. PDF page dimensioning was wrong if the image had been resized with -geometry "100%".
PAM: Fix MAXVAL scaling when reading PAM images. PAM was only working correctly for images with 256 or 64k levels.
PNM: PGM "P2" format writer wrote bad output for 8-bit depth.
PNG: With libpng 1.6.X, avoid a crash while copying a PNG with a "known incorrect ICC profile".
PNG: Q8 GM build now correctly reads 16-bit PNG files.
TIFF writer: Try to avoid writing more than 32k strips per image by increasing rows-per-strip since some programs fail to read images with more than 32k strips per image.
TIM reader: PSX TIM reports 8-bit depth (rather than 16).
TTF font rendering: Improve FreeType rendering error logic so that rendering returns immediately on pixel access errors rather than plowing on ahead.
TTF font rendering: Support rendering UTF-8 up to 21-bit code points. Was only supporting 16-bit code points.
Wand API: DrawSetStrokeDashArray() / DrawGetStrokeDashArray(), fix failure to work properly due to this code path never being tested.
Windows Ghostscript: 64-bit GraphicsMagick no longer requires both 32-bit and 64-bit builds of Ghostscript to be installed in order to read Postscript and PDF formats.
XPM reader: Reported depth now depends on the colormap rather than always claiming to be 16-bit.
New Features:
JPEG: Add support for writing 'XMP' profile.
PNM: As a simple non-standard extension to the standard PNM and PAM formats, support writing and reading 32-bit sample depth. Writing such files is only supported by the Q32 build although they may be read by any build.
WebP: Now supports reading and writing Google's WebP format. This feature is not currently supported by the Windows Visual Studio build.
to address issues with NetBSD-6(and earlier)'s fontconfig not being
new enough for pango.
While doing that, also bump freetype2 dependency to current pkgsrc
version.
Suggested by tron in PR 47882
a) refer 'perl' in their Makefile, or
b) have a directory name of p5-*, or
c) have any dependency on any p5-* package
Like last time, where this caused no complaints.
Special Issues:
Due to GCC bug 53967, several key agorithms (e.g. convolution) may execute much faster (e.g. 2-3X) for x86-64 and/or when SSE is enabled for floating point math (-mfpmath=sse) if the GCC option -frename-registers is used. Default 32-bit builds do not experience the problem since they use '387 math. It is not clear in what version of GCC this problem started but it was not noticed by the developers until the GCC 4.6 timeframe. Other compilers do not suffer from this bug.
Security Fixes:
None.
Bug fixes:
Fixed bug with format substitutions if input string ends with a single '%'.
BMP: Fixed an old bug with decoding chromaticity primaries.
PNG: Fixed reading of interlaced images. Fix reading of sub-8-bit palette and grayscale images. Some PNG sub-formats were written incorrectly. Fix crash in PNG8 writer if image colors happened to be non-zero but image was not actually colormapped.
PNG: Configure script now also searches for libpng versions 16 and 17.
TIFF: Fix a crash which was noticed when writing RGBA separated (planar) format.
--enable-symbol-prefix was not prefixing all of the C symbols. Some core C library functions were not prefixed. This option applies to the Wand library API as well now.
C API: When input is from a user-provided file descriptor, the file position is restored after reading the file header bytes. Previously the file position was rewound to the beginning of the file. This allows reading embedded image data from the current offset in a file, and allows continuing to use the stream after GraphicsMagick has returned the image.
C API: It is now possible to invoke CloseBlob() multiple times.
display: Display was supposed to respond to +/-usePixmap, but was not. It was responding to +/-use_pixmap. Now it responds to both.
Windows/VisualMagick: Fix building GraphicsMagick with Intel ICC compiler driven by Visual Studio Professional 2012.
Windows: Avoid a crash and produce a useful diagnostic if Ghostscript is needed but not yet installed.
New Features:
GM utility: New 'batch' command was contributed by Kenneth Xu which supports executing any number of other GM utility sub-commands in a single invokation in a sort of "batch" script. Input may be piped from standard input, from a specified file, or from a 'GM >' command prompt. This utilities front-end allows any other program/script to drive 'gm' using a co-process model and speeds up execution by eliminating utility start-up/shut-down time.
WIN64 (64-bit Windows): Windows 64-bit is now officially supported.
convert/mogrify: Now support -auto-orient to automatically rotate the image upright for viewing based on its current orientation setting. Also support -orient to support setting the current image orientation. Please note that the orientation property of EXIF profiles is not yet updated so the EXIF profile will be wrong after using -auto-orient.
C API: AutoOrientImage(), new New function to automatically orient the image so that it is upright for normal viewing.
Wand API: MagickGetImagePage()/MagickSetImagePage(), new functions to support getting and setting the image page size and offsets.
PNG: Added PNG48 and PNG64 support. Added PNG00 support (png encoder that inherits its color-type and bit-depth from the input, if the input was a PNG datastream).
Feature improvements:
GraphicsMagick TAP tests may now be run stand-alone using Perl's 'prove' TAP test driver.
Performance Improvements:
Detection of glob specifications in file names is more efficient.
Windows Delegate Updates:
None.
Behavior Changes:
ltdl: Libltdl is no longer bundled. Libltdl must be previously installed on the system in order to build the modules configuration.
AppendImages() now converts subsequent images to the colorspace of the first image, and no longer converts the first image to RGB. Instead, it is assumed the user knows what she is doing.
SetImageColorRegion() no longer automatically converts the image to RGB. The user is responsible for assuring that the provided color is in the same colorspace as the image.
Security Fixes:
* PNG: Fix for CVE-2012-3438. The Magick_png_malloc function in
coders/png.c in GraphicsMagick 6.7.8-6 does not use the proper
variable type for the allocation size, which might allow remote
attackers to cause a denial of service (crash) via a crafted PNG
file that triggers incorrect memory allocation.
* Automake (derived): Fix for CVE-2012-3386: The "make distcheck"
rule in GNU Automake before 1.11.6 and 1.12.x before 1.12.2 grants
world-writable permissions to the extraction directory, which
introduces a race condition that allows local users to execute
arbitrary code via unspecified vectors.
Bug fixes:
* PNG: Reading sub-8-bit palette images is fixed (images looked
stretched).
* SVG: Fixed bug which allowed MVG and SVG files with long vector
paths to crash the software.
* SVG: Ignore XML headers rather than rendering them as text.
* MVG/SVG/WMF/-draw: It is now possible to draw a plain ','
character.
* WMF: Fixed a bug which caused wrong centered-text placement.
* import: Return status was inverted.
* configure: Don't force that liblzma is used just because libtiff
is used.
New Features:
* The configure script now supports a --enable-quantum-library-names
option to enable that shared library name includes quantum depth
to allow shared libraries with different quantum depths to
co-exist in same directory (only one can be used for development).
* JNX: Support is added for reading the Garmin proprietary Image
Format.
* BMP: Support an alpha channel in uncompressed 32-bit BMP.
Feature improvements:
* -lat: The adaptive threshold algorithm is replaced with a new
algorithm which scales linearly (rather than quadratically) with
area size.
* Tests: Test suite is re-written to use TAP-based tests.
* GIF: Reader tries to be better at detecting and reporting
failures.
Performance Improvements:
* -lat: Adaptive threshold is much faster with large area sizes.
Windows Delegate Updates:
* Dcraw 9.16 is now included in the build (with JPEG and JPEG2000
support).
* Libxml2 is updated to the 2.9.0 release.
* Libtiff is updated to the 4.0.3 release.
* Lcms2 is updated to the 2.4 release.
* Libpng is updated to the 1.5.13 release.
Behavior Changes:
* Loading modules is only supported for the modules build.
Previously any build using shared libraries could load modules.
* Bundled libltdl is now configured as 'installable' rather than
'convenience'.
* -enhance: Only filter based on color channels (ignore opacity).
* BrowseDelegate: Web browser (for viewing help information) now
defaults to 'xdg-open', but if it is not found, then configure
will search for firefox, google-chrome, mozilla (in that order).
1.3.16 (June 24, 2012)
==========================
Security Fixes:
* Don't translate 'comment' and 'label' attributes if the request is
made while a file is being read. Only translate such attributes
if they come from the command line or API user.
Bug fixes:
* SWT: SWT reader suffered from a number of implementation errors
which caused it not to work any more. Works again.
* XBM: Fix memory leak observed when reading file in 'ping' mode.
* Support -trim on images which use a consistent (single color)
transparent background. In this case, trim is done based on
opacity rather than foreground color.
* Include <sys/types.h> in order to assure that 'size_t' and
'ssize_t' are declared. This is necessary since
MagickExtentImage() uses these types as part of its definition.
* +repage was not working because parser was insisting that it
should include an argument.
* -units was scaling existing resolution the wrong way around
(i.e. multiplying rather than dividing).
* PerlMagick: Fix compilation with Perl 5.16.
* PingBlob(): PingBlob was not working for all cases. Is now based
on BlobToImage() for assured reliability.
New Features:
None
Feature improvements:
* MAT: Animated movies inside 4D matrices are loaded now.
* PDF: File base name is used as the document title.
* PNG: Fix issues observed specifically with libpng 1.5.10.
Performance Improvements:
* Pixel iterators should be more efficient now if the image uses a
file-backed cache.
* Motion blur algorithm does scale well as cores are added so
include OpenMP support for it by default.
Windows Delegate Updates:
* JPEG: Updated to IJG 8d release.
* PNG: Updated to 1.5.11 release
* TIFF: Updated to 4.0.2 release.
* Zlib: Updated to 1.2.7 release.
* libxml2: Updated to 2.8.0 release.
Behavior Changes:
None
While here, remove unwanted buildlink and add lzma option.
1.3.13 (December 24, 2011)
==========================
Security Fixes:
None
Bug fixes:
* In I/O blob, don't rewind already open file handle passed to
OpenBlob() since we don't know the intended state of this file
handle, and because it prevents appending to an existing file.
* In AppendImageProfile(), don't leak profile buffer while appending
a chunk to an existing profile.
* Fix deadlock in ClonePixelCache() which was caused by using the
same semaphore pointer in the source and destination images.
* Removed bogus SyncBlob() code which sometimes caused a crash and
was not useful.
* Fixed crash or hang which occured when the user entered CONTROL-C
while threaded code was being executed.
* Fix core dump in AcquireOneCacheViewPixelInlined() when the image
is in CMYK space.
* In MontageImages (montage), fix crash observed with "-geometry
x+0+0".
* The TIFF reader was crashing for images which use the
TIFFTAG_OPIIMAGEID tag.
* AppendImages() (-append) was failing when only one image was
provided.
* The `animate`, `display`, and `identify` commands now report any
error only once, and then proceed to the next file name rather
than quitting.
* Don't change the locale settings in InitializeMagick() since this
may cause problems for international users. API users are still
responsible for assuring that locale settings don't break floating
point parsing and output (i.e. floating point decimal needs to be
'.' rather than ',').
* RPM build is fixed (PerlMagick build was broken).
* RPM build installs documentation to expected places on Red Hat
type systems.
* Fixes for usage with OpenSolaris.
* DESTDIR is supported by PerlMagick build.
* The matte channel was not being properly enabled or respected for
TXT images.
* InitializeMagick() and DestroyMagick() are now fully thread safe.
* When a shear angle was as zero, the shear request was being
ignored entirely.
* In DispatchImage(), the `K` channel was always output as black for
"CMYK" specification unless the image matte flag was True.
* MATLAB fixes.
* PNG fixes.
* PCL fixes for printing bi-level image on Konica-Minolta printers.
* EPT error handling fixes.
* JPEG reader was sometimes truncating large IPTC profiles.
* JPEG writer now handles errors properly rather than allowing
libjpeg to exit the program (or hanging if driven by Magick++).
* JPEG reader now treats an unhandled EXP marker as a warning rather
than a hard error.
* File open errors are now reliably reported.
* Improved rendering precision when using the drawing APIs.
* For the Magick++ Image backgroundColor(), borderColor(), and
matteColor() methods, preserve the opacity part of the
user-specified color.
New Features:
* Add support for drawing text using a bitmap font.
* benchmark command supports a -stepthreads option to execute the
specified command with an increasing number of threads to measure
how an algorithm benefits from threading. This mode includes a
column to show the speedup compared with one thread, and the
Karp-Flatt metric
* Added Add support for invoking "gs-cmyk" and "gs-cmyka" entries in
delegates.mgk when ColorSeparationType or ColorSeparationMatteType
is requested. These cause Ghostscript to always output CMYK PAM
format (even if the input file was not in CMYK format).
* EXIF profiles are preserved when writing JPEG files.
* The -mosaic command now respects the composition option specified
by -compose as well as the image background color specified by
-background.
* The TXT coder now supports multiple image frames.
* For image normalization (-normalize), add support for
histogram-threshold setting to specify the percentage of the
histogram to discard when computing image normalization parameters
(default is 0.1%). For example `-set histogram-threshold 0.01
-normalize`.
* Added an `INFO` coder which produces textual image description
output similar to `identify` but may be used with convert like "gm
convert myfile info:-".
* Support application of the PDF crop box via '-define
pdf:use-cropbox=true'.
* For PCL printer output, define pcl:fit-to-page in order for the
printer to scale the image to fit the page.
* Added order dither 5x5, 6x6, and 7x7 circular dither patterns to
create a halftone effect.
* PNM subformats are now reported as the specific subformat rather
than just "PNM".
* NetPBM's PAM format is now supported.
* MacPaint image format reader is added.
* Added TIFF LZMA compressor support.
* Added TIFF support for a tiff:group-three-options define to allow
power-users to set the value of the GROUP3OPTIONS tag.
* New core C API function SetImageColorRegion() to set the constant
pixel color for a specified region of the image.
* New Wand C API function MagickWriteImagesFile() to append images
to a provided file handle.
* New Wand C API function MagickSetImageSavedType() to allow
specifying the storage type used when saving the file (rather than
changing the current image characteristics).
* In Wand C API, the functions NewPixelWand(), NewDrawingWand(), and
NewMagickWand() invoke InitializeMagick() automatically in case
user forgets to do so.
* New Wand C API function MagickSetFormat() to allow setting the
file or blob format before it has been read.
* New Wand C API function MagickSetDepth() to set the depth used
when reading from an image format which requires that the depth be
specified in advance.
Feature improvements:
* Now compiles properly with libpng 1.4.X and 1.5.X.
* Lcms 2.X is supported.
Performance Improvements:
* TGA read performance improved.
* PNM read/write performance improved.
* Convolution (-convolve, -sharpen, -guassian, etc.) is faster.
* Adaptive threshold image (-lat) is faster.
* Image trimming (-trim) is faster.
Behavior Changes:
* For DPX format and packed 10 bits, datums are now represented in
the same (reversed) order for all RGB and YCbCr formats.
Previously YCbCr 4:4:4 formats were not swapping the word datums
because the only real-world files encountered did not swap the
word datums.
* The -colors, -map, and -monochrome options now take effect
immediately rather than at the end of all other processing.
* Removed non-standard multi-frame extension for SGI format.
* Windows install footprint is more consistent between DLL and
static builds.
* LZMA compressed tarball is in 'xz' format rather than deprecated
'lzma' format.
Bump PKGREVISION.
It introduce bump PKGREVISION of p5-GraphicsMagick.
While here,
* move distinfo and patches location to Makefile.common.
* let to exactly linked against installed GraphicsMagick.
