File: ChangeLog.2014

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2014-12-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/wpg.c (UnpackWPGRaster): Fix some compilation and
	valgrind warnings.

	* NEWS.txt: Updated news again.

2014-12-31 Fojtik Jaroslav  <JaFojtik@seznam.cz>

	* coders/wpg.c Fixed 2bpp issue.

2014-12-31  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c: Validate MHDR chunk length.

	* coders/png.c: Use ReadBlob() once instead of ReadBlobByte()
	in a loop.

	* coders/png.c: Avoid reading beyond the end of a tEXt keyword.

2014-12-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/xpm.c (ReadXPMImage): Detect short XPM rows and report
	error to user rather than overrunning a buffer.

	* coders/pcx.c (ReadPCXImage): Validate that header bytes per line
	is sufficient to contain the indicated data.

	* coders/pdb.c (ReadPDBImage): Fix indexes array overrun for 2 and
	4-bit PDB image files.

	* coders/xpm.c (ReadXPMImage): Avoid strncpy() of overlapping
	memory.  Fix memory leaks in error paths.

	* coders/viff.c (ReadVIFFImage): Validate index before using it to
	access colormap.

	* coders/{cineon.c, dpx.c} (StringToAttribute): Can't use
	strlcpy() to copy string which might not be NULL-terminated since
	strlcpy() continues searching for end of string after size bytes
	have been copied.

	* coders/meta.c (convertHTMLcodes): Avoid strcpy() of overlapping
	memory.

2014-12-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/process.rst: Update description of development process to be
	more aligned with the process actually used.

	* coders/wpg.c (ReadWPGImage): Avoid use of NULL pointer returned
	from FlipImage(), FlopImage(), and RotateImage().

	* coders/rle.c (ReadRLEImage): URT RLE reader is now more robust
	with errant files.

2014-12-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* libtool: Update bundled libtool to version 2.4.4.

	* magick/constitute.c (WriteImage): Remove bogus use of
	GetBlobStatus() as a catch-all for write errors.  Coders should be
	detecting write errors all by themselves.

2014-12-27  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Updated with more improvements since previous release.

	* coders/palm.c (WritePALMImage): Log header details.

	* coders/pdb.c: PDB reader and writer need to be more robust when
	calculating packets and buffer allocation.  Also log header
	details.  Problem was reported by Hanno Böck.

2014-12-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Updated with more improvements since previous release.

	* ttf: Update bundled Freetype to 2.5.4.

	* png: Update bundled libpng to 1.6.16.

2014-12-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): The libtiff JBIG coder only
	supports strip images, and fails when scanlines are requested.
	Force use of stripped read method when the file uses JBIG
	compression.  It is still not possible to write JBIG compressed
	TIFF files since there is not yet a strip writer.  Problem
	reported by Yuriy Kaminskiyon via the GM-bugs mailing list on
	2014-12-22.

2014-12-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (QuantumTransferMode): Fix quantum transfer
	handling for photometrics which might deliver one or three samples
	per pixel.  These were assuming that three samples were always
	provided.

2014-12-21  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c: Impose a 10-million limit on dimensions
	when reading a PNG file.

2014-12-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Updated with improvements since previous release.

2014-12-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/statistics.c (GetImageStatistics): Failed to compute
	statistics for the Black channel of CMYK image files.  Problem
	reported by Michael Below via Debian bug 773552:
	"graphicsmagick-imagemagick-compat: convert to cmyk leaves k
	channel empty".

2014-12-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/delegate.c (InvokeDelegate): Windows spawnvp() splits
	arguments into more arguments.  Add escaping to avoid the
	splitting.  Resolves SourceForge bug #276 "dcraw 9.19 included
	with gm 1.3.20 doesn't support paths with spaces."

	* magick/utility.c (TranslateTextEx): Fix regression added on
	2014-12-13 (yesterday) which caused output file name passed to
	delegate programs to be wrong.

	* magick/annotate.c (RenderFreetype): Fix regression added in
	1.3.19 which caused spurious drawing errors to be produced while
	rendering with text when all of the text is off the left-hand side
	of the image.

2014-12-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (CompareUsage): Options should be listed in
	alphabetical order.

	* magick/annotate.c (RenderFreetype): Immediately quit processing
	and return an error if SyncImagePixels() reports a problem.

	* coders/psd.c (ReadPSDImage): Return with an error right away if
	SetImageEx() (to create solid-color background canvas) reports a
	failure.

	* magick/annotate.c (AnnotateImage): Document all of the
	attributes which are supported.

	* magick/utility.c (TranslateTextEx): Assure that attributes
	requiring ImageInfo pointer are skipped.  AnnotateImage() does not
	pass ImageInfo.  Also document all of the attributes which are
	supported.

	* doc/compare.imdoc: Compare documentation examples referred to
	non-existing option -algorithm rather than the existing option
	-highlight-style.  Fixes SourceForge bug #286 "docs are wrong
	about `-algorithm` option of `gm compare`?".

	* Magick++/lib/Magick++/Geometry.h (Magick): Re-implemented
	Magick++ Geometry to use bit-fields for booleans and used a union
	to reserve space for the future as well as to achieve the same
	size as in the previous release.  Eliminated inline methods
	because they make it impossible to change the class internal
	design.  ABI was broken already when limitPixels() and fillArea()
	methods were added on 2014-11-28.  Inline method instantiations in
	already compiled applications will malfunction unless the
	dependent applications are re-compiled.

	* magick/image.c (SetImageEx): Add a new version of SetImage()
	called SetImageEx() which reports exceptions to a provided
	exception parameter rather than into the image.

2014-12-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/colormap.c (AllocateImageColormap): Refuse to allocate a
	colormap larger than MaxColormapSize.

	* coders/psd.c (ReadPSDImage): Avoid extremely long execution time
	if the PSD colormap size is astonishingly large.  Problem was
	reported by Hanno Böck.

2014-11-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/dcm.c: Verify that DCM data is available before
	attempting to use it.  Avoids a crash due to improper DCM header.
	Problem was reported by Hanno Böck.
	(DCM_ReadNonNativeImages): Fix array over-run (off by one error)
	while looking for end of multi-fragment frames.

2014-11-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/sun.c: Thoroughly validate Sun Rasterfile headers and
	verify that there are no arithmetic overflows in buffer-size
	calculations.  Problem was reported by Hanno Böck.

2014-11-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Magick++/lib/Magick++/Geometry.h (Magick::Geometry): Add and
	document limitPixels() and fillArea() methods to support '@' and
	'^' geometry qualifiers.  Fill area contributed by Long Ho and
	limitPixels() by Bob Friesenhahn.

	* www/Magick++/Image.rst: Document extent and resize methods.

	* Magick++/lib/STL.cpp (extentImage): New function object to
	invoke image extent method. Original implementation contributed by
	Long Ho.  Subsequently modified by Bob Friesenhahn.
	(resizeImage): New function object to invoke image resize
	method. Contributed by Long Ho.

	* Magick++/lib/Image.cpp (extent): New method to place image on
	sized canvas of constant color using gravity.  Contributed by Long
	Ho.
	(resize): New method to resize image specifying geometry, filter,
	and blur.  Original implementation contributed by Long Ho.
	Subsequently modified by Bob Friesenhahn.

2014-11-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/avi.c: AVI support in GraphicsMagick is completely
	unusable and it could never compete with dedicated software like
	'ffmpeg'.  Removing AVI support until such time it can be
	supported properly.

	* coders/viff.c: Add protections against buffer overflow by
	verifying that buffer size allocation calculations do not
	overflow.  Also added header logging for read and write. Work
	performed due to complaint by Hanno Böck.

2014-11-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/common.h (MAGICK_NO_SANITIZE_ADDRESS): Add
	MAGICK_NO_SANITIZE_ADDRESS macro definition for disabling
	clang/GCC address sanitizer on a function if the need arises.

2014-11-24  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadPNGImage): Do not attempt to clean up
	a "previous" NULL PNG image.

2014-11-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/xwd.c (ReadXWDImage): Add logging of XWD header values.
	Fix memory leaks in error reporting paths.  Ping mode skips
	allocating memory for data and colormap.  Added a few more header
	validation checks (not complete).  XWD is put in
	UnstableCoderClass until such time as header validation checks are
	complete.

2014-11-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pdb.c (WritePDBImage): Use MagickAllocateArray() when
	allocating packets.

	* coders/dpx.c (ReadDPXImage): Validate DPX header orientation and
	number of elements.  Problem was reported by Hanno Böck.

2014-11-20  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadJNGImage): Do not attempt to clean up
	a "previous" NULL JNG image.

2014-11-17  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/FAQ.rst: Add a FAQ entry regarding what 'identify' reports.
	Resolves SF issue #280 "Better documentation for spurious gm
	identify in Q8 compilation."

2014-11-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/enhance.c (ModulateImage): ModulateImage() should produce
	a progress indication even if only the colormap is modified.

2014-11-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/psd.c (ReadPSDImage): Patch by Cédric Demière to fix
	"Memory allocation failed" error when reading PSDs files which
	have no layers.  Delivered via SF patch #41 "PSD : files without
	layers".  Resolves SF bug #242 "Can not convert PSD to JPG or PNG
	(gm convert: Memory allocation failed)".

2014-11-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/webp.c (WriteWEBPImage): WebP fix by Roman Hiestand to
	make WebP lossless format truely lossless.

	* tests/rwblob.tap (check_types): Added a test for WebP lossless.

	* tests/rwfile.tap: Added a test for WebP lossless.

	* tests/rwblob.c: Added support for -define.

	* tests/rwfile.c: Added support for -define.

2014-11-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* webp, VisualMagick/webp: Updated bundled WebP to 0.4.2 release.

2014-11-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Magick++/tests/attributes.cpp: Add a simple test for
	Image::formatExpression().

	* Magick++/lib/Image.cpp (formatExpression): Handle case where
	TranslateText() returns NULL.  Problem was reported by Dirk
	Lemstra..

2014-10-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Magick++/lib/Image.cpp (formatExpression): New method to format
	a string based on a format similar to command-line -format.
	Feature was requested by Dirk Lemstra.

	* magick/blob.c (BlobReserveSize): Don't throw an exception if
	posix_fallocate() fails since it seems that it is not supported
	for all filesystem types, and is only intended for optimization.

	* Magick++/lib/Image.cpp (resolutionUnits): Return resolution
	units from Image if available, else return the value from
	ImageInfo.  Issue was reported by Dirk Lemstra.

2014-10-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pnm.c (ReadPNMImage): Validate PGM, PPM, and PAM header
	MaxValue parameter.  Issue was reported by Hanno Böck.

	* coders/pcx.c (ReadPCXImage): Fix for CVE-2014-8355, eliminate
	memory leaks in error paths, and add PCX header logging.  Issue
	was reported by Hanno Böck.

2014-10-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/wand_symbols.h (MagickSetImageGamma): Fix typo in
	wand/wand_symbols.h.  Resolves SF bug #277.

2014-10-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (TIFFIgnoreTags): Avoid warning about unused
	strtol() return value on Linux.

	* magick/random-private.h ("C"): Move random inlined
	implementation bits to random-private.h, which is not installed,
	or used outside of the core C library.

2014-09-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/annotate.c (AnnotateImage): An empty text string should
	not be treated as an error.  Resolves Debian bug 759956.

2014-08-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c: Added a new define called tiff:ignore-tags that
	can be used to ignore tags in 'corrupted' files with unknown and
	invalid tags. Without this patch the file cannot be read and
	raises an error. Patch by Dirk Lemstra via SF patches #40.

	* magick/type.c (ReadTypeConfigureFile): Support reading type
	configuration file from Windows resource. Patch by Dirk Lemstra
	via SF patches #32.

	* Magick++/lib/Magick++/STL.h: Fixed code analysis warning in
	STL.h. Patch by Dirk Lemstra via SF patches #32.

	* Magick++/lib/Magick++/Include.h: Autolink WebP in Visual
	Studio. Patch by Dirk Lemstra via SF patches #32.

2014-08-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/psd.c (WritePSDImage): Fix small stack over-write if more
	than 99 layers are written to PSD format.  Similar to
	CVE-2014-1947 for ImageMagick.  Changed layer naming to use at
	least 4 digits.  Issue was brought to our attention by Rex Dieter
	and change is mostly based on his patch.

2014-08-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/enum_strings.c (StringToCompositeOperator): Support
	composite operator names similar to the major brand, without
	losing any compatibility with previous naming.

2014-08-23  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>
	* coders/png.c: Fixed handling of transparency when writing
	indexed PNG. Reference: SourceForge Bug tracker [bugs:#267]
	Transparency lost when converting from GIF to PNG.

2014-08-17  Jaroslav Fojtik  <JaFojtik@seznam.cz>

	* VisualMagick\configure\configure.cpp Remove webp when attempting
	to compile with Visual Studio 6.

2014-08-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update for 1.3.20 release.

	* www/index.rst: Update for 1.3.20 release.

	* version.sh: Update library versioning for next release.

2014-08-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* png: Updated libpng to 1.6.12 release.

	* zlib: Updated zlib to 1.2.8 release.

2014-08-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Updated NEWS file to document changes since previous
	release.

2014-08-09  Jaroslav Fojtik  <JaFojtik@seznam.cz>

        * coders/webp.c webp cannot be compiled when HasWEBP is not set.

2014-08-08  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c: Eliminated palette and depth optimization (see
	https://sourceforge.net/p/graphicsmagick/feature-requests/35/).

2014-08-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* dcraw/dcraw.c: Fix dcraw build for x64 target when only WIN64 is
	defined (by also defining WIN32).

	* VisualMagick/configure/configure.cpp (write_file): Fix problem
	with x64 project naming which caused object file disambiguation
	not to work for x64 target. Make line terminations consistent.

2014-08-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* VisualMagick: VisualMagick fixes by Dirk Lemstra to 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.  Resolves SF patches 31, 33, 35, 37,
	and 38.

2014-07-27  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/nt_base.c (NTResourceToBlob): Support loading mgk files
	as Windows resource from library if MagickLibName is defined.
	Patch contributed by Dirk Lemstra via SF patch #32.
	(NTGhostscriptDLL): For Microsoft Windows, add support for a
	MAGICK_GHOSTSCRIPT_PATH environment variable which specifies the
	path to Ghostscript.  If this environment variable is defined,
	then the Windows registry is not used to find Ghostscript.  Patch
	contributed by Dirk Lemstra via SF patch #39.

	* magick/log.c: Added SetLogMethod() to allow an
	application/library to specify a function to be called for
	logging.  Patch contributed by Dirk Lemstra.

2014-07-20  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/bmp.c: "opacity" read from a BMP3 is actually "alpha",
	so store q->opacity=MaxRGB-opacity instead of q->opacity=opacity.
	Reference: Bug tracker [bugs:#271] Blank result for BMP resize.

2014-07-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* webp, VisualMagick/webp: Integrate webp 0.4.0 into windows
	build.  May require manual renaming of output object files in
	project files to build webp until VisualMagick configure is
	improved!

2014-07-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/composite.c: fmin() and fmax() are defined by C'99 and
	not available everywhere, so add and use MagickFmin() and
	MagickFmax() to improve portability.

2014-07-11  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Magick++/lib/Magick++/Image.h (Magick): Fix complilation errors
	caused by continued raw use of __attribute__.

2014-06-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/composite.c: Fixes by Brendan Lane for color channel
	overflows in modified/new quantum operators.  Fixes test suite
	results for Q32 build and makes LinearBurn and LinearDodge work
	correctly at all.

	* wand/pixel_wand.c (PixelSetMagenta): Fix documentation.
	Resolves SourceForge bug #273 'Green Magenta' typo in docs.

2014-06-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/composite.c: Composition improvements and additions
	contributed by Brendan Lane via SourceForge patch #34 "Most of the
	missing Photoshop separable compositing operations"
	(https://sourceforge.net/p/graphicsmagick/patches/34/).  These
	composition operators were modified to include alpha in their
	computations: Difference, Darken, Lighten, HardLight, and these
	operators were added Overlay, Exclusion, ColorBurn, ColorDodge,
	SoftLight, LinearBurn, LinearDodge, LinearLight, VividLight,
	PinLight, HardMix.

2014-06-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/composite.c (ScreenCompositePixels): Implementation of
	Screen composite contributed by Brendan Lane.  SourceForge patch
	#30 "Missing Screen composite operation".

	* wand/magick_compat.c: Re-worked Wand library implementation to
	depend directly on GraphicsMagick library functionality rather
	than using ImageMagick shim code from magick_compat.c and
	magick_compat.h. The magick_compat.c source module becomes "dead
	code", which remains only to support the existing ABI, and will be
	deleted at the next major ABI break point.

	* magick/utility.c (MagickFormatString): New private function to
	format a string into a buffer with a specified size.  Same as
	previously existing FormatString() except requires a length
	argument.

2014-06-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/magick_compat.h: Use MAGICK_ATTRIBUTE definition from
	magick/common.h.

	* magick/common.h (MAGICK_ATTRIBUTE): Don't undefine __attribute__
	since this may be used by system or compiler headers.  Define
	private macro instead.  Resolves SourceForge bug #270 "Compile
	error with g++ -std=c++11".

2014-06-06  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadOnePNGImage): Free png_pixels and
	quantum_scanline before error return.  Use "png_error()"
	instead of "ThrowException2()" for errors occuring while
	decoding a PNG so proper cleanup will happen.

2014-06-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): Make sure that libtiff warnings
	are promoted to errors for critical tags.

2014-06-02  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): Be quite a lot more draconian
	when retrieving the baseline standard TIFF tags we need in order
	to avoid consuming uninitalized data later.  An error with these
	tags will result in failure to read the image file.

2014-05-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/operator.c: Decided that ThresholdBlackNegateQuantumOp
	and ThresholdWhiteNegateQuantumOp should set the result to white
	or black respectively rather than being based on subtraction.

2014-05-18  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Makefile.am (AUTOMAKE_OPTIONS): Be ultra-pedantic with CPPFLAGS
	and include paths in order to assure that only required
	directories are supplied, and to avoid accidential collision with
	system header files.

2014-05-17  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/operator.h ("C"): New quantum operators
	ThresholdBlackNegateQuantumOp and ThresholdWhiteNegateQuantumOp.
	These correspond to -operator "Threshold-Black-Negate" and
	"Threshold-White-Negate".

2014-05-11  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/composite.c (MultiplyCompositePixels): Multiply
	composition now uses SVG interpretation of how alpha should be
	handled.  No longer does a simple multiply of alpha channel.
	Behavior change.  Patch contributed by Sara Shafaei.

	* coders/msl.c (ProcessMSLScript): Deal with case where
	image_info->attributes is NULL.

2014-04-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/utility.c (TranslateTextEx): Support additional format
	specifiers 'g', 'A', 'C', 'D', 'G', 'H', 'M', 'O', 'P', 'Q', 'T',
	'U', 'W', 'X', and '@'.
	(GetMagickGeometry): Support '>' and '<' qualifiers with '@'
	qualifier to specify if image should be resized if larger or
	lesser than given area specification.  Resolves SourceForge bug
	#216 ">" wont take effect when use @ to specify the maximum area.

	* magick/transform.c (GetImageMosaicDimensions): Move mosaic
	dimensions code to a static function for possible future re-use.

2014-04-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/gradient.c (GradientImage): Update image is_grayscale and
	is_monochrome flags based on gradient color properties.

2014-04-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/utility.c (GetMagickGeometry): 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.

2014-04-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* doc/options.imdoc: Document WebP encoder options.

	* coders/webp.c (WriteWEBPImage): Support all of the WebP encoder
	options via -define arguments.  Most of this work is contributed
	by Roman Hiestand.

	* configure.ac: User-provided LIBS should be prepended to LIBS
	that configure script produces so that user option takes
	precedence.

2014-04-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* PerlMagick/Magick.xs: Added support for HardLight composition
	operator.

	* www/perl.rst: Update PerlMagick documentation, including the
	composition operators.

	* coders/xcf.c (GIMPBlendModeToCompositeOperator): Use new
	HardLight composition operator to support XCF GIMP_HARDLIGHT_MODE
	blend mode.  Contributed by Sara Shafaei.

	* coders/psd.c (CompositeOperatorToPSDBlendMode): Use new
	HardLight composition operator to support PSD "hLit" blend mode.
	Contributed by Sara Shafaei.

	* wand/magick_wand.c (MagickOperatorImageChannel): New function to
	apply an operator to an image channel.  Contributed by Sara
	Shafaei.

	* magick/composite.c (HardLightCompositePixels): New HardLight
	composition operator.  Contributed by Sara Shafaei.

2014-04-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (BenchmarkImageCommand): Add a CSV title line
	and quoting to benchmark -rawcsv output.

2014-04-05  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/webp.c: Add progress indication support to WebP writer.

	* magick/command.c (VersionCommand): WebP support is included in
	-version output.

	* coders/webp.c: WebP coder identifies library version and header
	ABI versions. Improve WebP error reporting.

2014-04-02  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (WriteTIFFImage): Allow specifying the TIFF image
	software tag.  In the special case that the string length is zero
	(e.g. -set software '') then the tag is skipped entirely.  This is
	to support SourceForge feature request #37 "Option to prevent
	addition of Exif Software tag" opened by Jean-Louis Grall.  Please
	note that this tag is not an EXIF tag.

	* magick/command.c: composite, convert, display, mogrify, and
	import now support +set to remove an existing image attribute.

2014-03-16  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c: Don't block threads when PNG_SETJMP_SUPPORTED is
	not enabled.

	* coders/png.c: Changed prefix of macros defined in coders/png.c
	from PNG_ to GMPNG_.  PNG_ is reserved for macros defined by
	libpng.

2014-03-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/blob.c: Don't use setvbuf() to set stdio block size if
	filesystem block size is zero (e.g. MAGICK_IOBUF_SIZE=0)

2014-03-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* tests/{rwblob.tap, rwfile.tap}: Added tests for WEBP.

	* tests/{rwblob.c, rwfile.c}: Add lossy hint for WEBP.

	* coders/webp.c (WriteWEBPImage): Fix inverted return status.
	Added a tiny bit of logging.

2014-03-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* ttf: Updated FreeType to release 2.5.3 of March 6, 2014.
	Provides security fixes for CVE-2014-2240.

	* jpeg: Update to libjpeg 9a of 19-Jan-2014.

	* png: Update to Libpng 1.6.10 - March 6, 2014.

2014-03-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/nt_base.c (NTResourceToBlob): According to Microsoft
	Report article 193678 (http://support.microsoft.com/kb/193678),
	FreeResource() is not needed in WIN32 and performs no useful
	function.  Remove use of it.  Also remove use of UnlockResource()
	which is similarly unuseful for WIN32.

	* configure.ac (MAGICK_LIBRARY_REVISION): Test for Windows
	_aligned_malloc() is not reliable.  Use Windows CRT version to
	decide if it is available.

2014-03-05  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/studio.h: Make sure that Windows _aligned_malloc() is not
	used under MinGW unless the CRT version allows it.

2014-02-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/pixel_cache.c (InterpolateViewColor): Applied patch by
	Troy Patteson plus fixes to ignore opacity channel if image matte
	is false.  Replaces most of the code rewritten on 2014-02-16 and
	which produced a faint darkened border.  The results look stellar
	now.

2014-02-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/shear.c: Applied patch by Troy Patteson to improve
	non-integral rotation by around 40% by minimizing added image
	borders.  This may cause small differences in results for some
	images.

	* reference/filter/Rotate10.miff: Update rotate 10 degrees
	reference image so that PerlMagick test passes.

	* magick/shear.c: Applied patch by Troy Patteson to fix
	SourceForge issue #260 "Rotation exhibits clipping/shearing errors
	for short wide images at some angles".

2014-02-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* doc/options.imdoc: Fix documentation to note that 'unspecified
	alpha' is the GraphicsMagick default when writing TIFF rather than
	'associated alpha'.  Much thanks to Mats Peterson for alerting us
	of this error.

2014-02-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/pixel_cache.c (InterpolateViewColor): Added a hack so that
	affine transformations and displace composite do not have
	background colored fringing on the transferred image edges when
	the background is completely transparent.  Fringing problem was
	caused by one or more of the line ends being a transparent pixel
	outside of the bounds of the original image content.  May not be
	the final solution.

2014-02-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/semaphore.c (AcquireSemaphoreInfo): Document that this
	function was deprecated.
	(LiberateSemaphoreInfo): Document that this function was
	deprecated.

2014-02-11  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/psd.c (RegisterPSDImage): Set PSD to UnstableCoderClass
	since its implementation is currently rather marginal.  It may
	even be that this coder deserves to be marked with the new
	BrokenCoderClass.  We are still looking for a volunteer to iron
	out the wrinkles in the PSD reader.

	* magick/magick.h (CoderClass): Added BrokenCoderClass to mark
	coders which often malfunction or are not very useful in their
	current condition.  Sometimes there is still hope that problems
	will be resolved and so the source file is not outright deleted.
	This setting allows us to mark and use coders which might
	malfunction by defining MAGICK_CODER_STABILITY=BROKEN in the
	environment while not causing danger for normal use.

2014-02-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/magick_wand.c: Documentation improvements for
	MagickSetInterlaceScheme() and MagickSetImageInterlaceScheme().
	Resolves SourceForge bug #262 "setImageInterlaceScheme doesn't
	make image progressive".

2014-02-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/{ps.c, ps2.c, ps3.c, pdf.c}: Only use resolution from
	image or -density if units was properly specified.  Without units,
	resolution is worthless.

	* coders/ps3.c (WritePS3Image): Use image resolution similar to PDF
	changes.

	* coders/ps2.c (WritePS2Image): Use image resolution similar to PDF
	changes.

	* coders/ps.c (WritePSImage): Use image resolution similar to PDF
	changes.

	* coders/pdf.c (WritePDFImage): Use resolution from image if it
	appears to be valid.  Resolves SourceForge issue #261 "PNG Pixel
	Density Not Preserved Converting to PDF".

	* magick/enum_strings.c (StringToResolutionType): New function to
	convert ResolutionType to C string.
	(ResolutionTypeToString): New function to convert from C string to
	ResolutionType.

2014-02-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/magick_wand.c (MagickGetImageGeometry): New function to get
	the image geometry string.  This function and the three others in
	this change set are contributed by Sara Shafaei.
	(MagickGetImageMatte): New function to read the image matte
	(opacity) channel enable flag.
	(MagickSetImageGeometry): New function to set the image geometry
	string.
	(MagickSetImageMatte): New function to set the image matte
	(opacity) channel enable flag.

2014-01-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/magick_wand.c (MagickDrawImage): Remove development debug
	fprintf which causes each drawing primitive to be printed to
	stderr.

2014-01-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pnm.c (ReadPNMImage): Fix scaling of alpha in sub-ranged
	pixels.  Addresses SourceForge issue #237 "Incorrect MAXVAL
	scaling when reading PAM images", which was not fully fixed in by
	the previous attempt.

2014-01-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/tsd.c: Implement TSD for "pure" OpenMP mode without
	relying on POSIX or WIN32 TSD APIs.

	* magick/semaphore.c: Implement OpenMP-based locking so that code
	can compile in a "pure" OpenMP mode without relying on POSIX or
	WIN32 locking APIs.

	* configure.ac: --without-threads no longer disables use of
	OpenMP.  Use the already existing option --disable-openmp to
	disable OpenMP.

2014-01-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/common.h: Support use of clang/llvm __attribute__ and
	__builtin extensions similar to the existing support for GCC.

2014-01-05  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Magick++/lib/Image.cpp (thumbnail): New method for fast image
	resizing, particularly to make thumbnails.

	* coders/gif.c: Log when Netscape loop exension is read and
	written.

	* coders/png.c (WriteOnePNGImage): In optimize mode, disable matte
	channel immediately if there are no non-opaque pixels.  Also added
	some useful logging.  Resolves SourceForge issue #252 "convert an
	8bit PNG result in a corrupted image ".

	* wand/magick_wand.c (MagickSetImageGravity): New Wand method to
	set image gravity.
	(MagickGetImageGravity): New wand method to get image gravity.

2014-01-02  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadOnePNGImage): Use libpng function
	png_set_strip_16_to_8() when scaling 16-bit input PNG down to
	8-bit in a Q8 build.  The png_set_scale_16_to_8() function is
	more accurate, but the slight difference causes reference tests
	to fail and causes unexpected difference between the behavior
	of PNG and other formats.  If png_set_strip_16_to_8() is not
	supported in libpng, then we use png_set_scale_16_to_8() if
	that is available.

2014-01-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* INSTALL-windows.txt: Update for 2014.

	* INSTALL-unix.txt: Update for 2014.

	* Copyright.txt: Update for 2014.

	* NEWS.txt: Update for 2014.

	* README.txt: Update for 2014.

	* doc: Update for 2014.

	* www: Update for 2014.

	* VisualMagick/installer: Update for 2014.

	* ChangeLog: Rotate Changelog to ChangeLog.2013 for 2014.