ChangeLog.2013

2013-12-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* version.sh: Update for 1.3.19 release.

	* www/index.rst: Update for 1.3.19 release.

	* NEWS.txt: Update for 1.3.19 release.

	* magick/blob.c (GetBlobTemporary): Add assertions to assure that
	image and blob are valid structures.

	* coders/png.c (ReadOnePNGImage): Fix problem peculiar to Q8 build
	with reading 1-bit PNG files.

	* PerlMagick/t/png/(write-16.t, read.t, write-16.t, write.t):
	Update expected signatures

	* coders/xpm.c (WriteXPMImage): Limit XPM color resolution to what
	XPM can traditionally handle.

	* magick/enhance.c (GammaImage): Eliminate a compiler warning.

	* coders/png.c (ReadOnePNGImage): Eliminate a compiler warning.

	* coders/pcl.c (WritePCLImage): Eliminate a compiler warning.

2013-12-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/delegate.c (InvokePostscriptDelegate): Log return status.

	* magick/nt_base.c (NTGhostscriptFonts): For Microsoft Windows,
	also search c:\gs\fonts for Ghostscript font files.

	* coders/ept.c (ReadEPTImage): Fix crash observed when Ghostscript
	fails to produce output.

2013-12-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/annotate.c: Simplify FreeType2 header inclusion.

	* configure.ac: Only test for freetype/freetype.h if ft2build.h
	was not found.

2013-12-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* ttf: Update FreeType to release 2.5.2.

	* Updated build to use Automake 1.14.1.

2013-12-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* libxml: Update libxml2 to release 2.9.1.

2013-12-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* lcms/include/lcms2.h: Update lcms to release 2.5.

	* png/README: Update PNG library to release 1.6.8.

	* jpeg: Update Windows IJG JPEG library to release 9.

2013-12-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/alpha_composite.h (BlendCompositePixel): Fix from Troy
	Patteson to eliminate induced color problems when compositing two
	images which include fully transparent pixels.  Now fully
	transparent pixels do not contribute any color to the composed
	result. Opacity used when blending is now based on the average
	opacity of both pixels.  Resolves SourceForge issue #148 "Pixel
	interpolation problem with rotated transparent images ".

2013-12-18  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadOnePNGImage): Properly scale 16-bit input
	PNG down to 8-bit when using a Q8 build.

2013-12-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Magick++/demo/piddle.cpp (main): Use DrawableDashArray to make
	sure that it works.

	* wand/drawing_wand.c (DrawSetStrokeDashArray): Fix defective
	stroke-dasharray MVG generation.  Resolves SourceForge issue "#255
	DrawSetStrokeDashArray still fails".

	* magick/draw.c (DrawSetStrokeDashArray): Fix defective
	stroke-dasharray MVG generation.

2013-12-02  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/jpeg.c: Add value scaling changes which will be necessary
	to support all the build depths supported by IJG JPEG 9a.

	* coders/webp.c (ReadWEBPImage): Support 'ping'. Improve quality
	of error reporting.

	* GraphicsMagick.spec.in: Update RPM spec file to add
	libwebp-devel as a build dependency, and libwebp as a run-time
	depdendency.

2013-12-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/webp.c: Incorporated simple WebP support as contributed
	by "TIMEBUG" at users.sf.net plus a few security changes. Does not
	yet support Windows Visual Studio build, input from a pipe,
	attached profiles, animation, or incremental pixel I/O.
	(RegisterWEBPImage): Register WebP as requiring seekable stream so
	input from pipe works.

2013-11-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/drawing_wand.c (DrawSetStrokeDashArray): Use array size
	specified by user and don't expect user-provided array to be
	terminated by 0.0.  Resolves SourceForge bug "#250 Unexpected
	results from DrawSetStrokeDashArray".

	* magick/draw.c (DrawSetStrokeDashArray): Use array size specified
	by user and don't expect user-provided array to be terminated by
	0.0.

	* wand/drawing_wand.c (DrawGetStrokeDashArray): terminating 0.0 to
	array returned to user.

	* magick/draw.c (DrawGetStrokeDashArray): Add terminating 0.0 to
	array returned to user.

2013-11-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/annotate.c (RenderFreetype): Support rendering UTF-8
	21-bit code points.  Was limited to 16-bit code points due to an
	oversight/bug.  Resolves SourceForge bug "#149 Rendering UTF-8
	encoded file displays wrong glyphs".

2013-11-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/constitute.c (ReadImage): Consistently initialize Image
	page width and height to image width and height. Resolves
	SourceForge bug #253 convert pdf output page is the wrong size
	with -geometry "100%".

2013-11-18  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (WriteTIFFImage): TIFFDefaultStripSize() sometimes
	returns zero so make sure that rows-per-strip is at least one to
	avoid divide by zero error.  This bug was added in the current
	development cycle.

2013-10-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update news since last release.

	* magick/annotate.c (RenderFreetype): Support Johab, Latin-1, and
	Latin-2 encodings.

2013-10-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/drawing_wand.c (DrawSetStrokeLineJoin): BevelJoin should
	produce MVG text "bevel".

	* magick/draw.c (DrawSetStrokeLineJoin): BevelJoin should produce
	MVG text "bevel".  Fixes SourceForge bug "#245 error occured to
	DrawableStrokeLineJoin(LineJoin.BevelJoin)".

2013-10-16  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* Added calls to png_set_benign_errors() to allow benign errors
	to be handled as warnings.  In particular, GM builds with libpng-1.6.x
	will not crash while copying a PNG with a "known incorrect ICC
	profile".

2013-10-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/nt_base.c (NTGhostscriptEXE): Use gswin64c.exe as
	Ghostscript executable name in a 64-bit application.

2013-10-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/nt_base.c (NTGhostscriptFind): 64-bit application should
	not search for Ghostscript in 32-bit registry.  SourceForge bug
	#243 "GM on Windows will find Ghostscript only if both are 32 bit"

2013-09-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pnm.c: As an extension to the standard PNM and PAM
	formats, support writing 32-bit sample depth in the Q32 build, and
	supporting reading 32-bit sample depth in all builds.

2013-09-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c: Allow reading signed integer TIFF files even
	though internal storage uses signed integers.  Negative values
	will be handled incorrectly and positive values will be scaled to
	only 1/2 of the available unsigned range.  Perhaps the situation
	will improve in the future.

	* tests/rwfile_miff.tap: Test MIFF with specific depths.

	* tests/rwblob.c: Add support for -quality option.

	* tests/rwfile.c: Add support for -quality option.

	* tests/rwfile.tap: Add tests for PGM and PPM ASCII subformats.

	* coders/pnm.c (WritePNMImage): PGM "P2" format writer was broken
	at 8-bit depth due to lack of white-space between the output
	values.  Fixed now.

2013-09-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/miff.c (ReadMIFFImage): Fixes to be able to read MIFF
	written by ImageMagick 6.X, including DirectClass grayscale
	images.  Interoperabilty is not completely assured since
	ImageMagick is not consistent with itself and may only be able to
	read the file it just wrote.  Reading DirectClass grayscale RLE
	compressed images is not supported yet.

2013-09-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/profile.c (MagickFreeCMSTransform): Only delete the CMS
	transform if it is non-null.  If lcms returned a null transform,
	an assertion was thrown in lcms when the pointer was freed.
	Problem was reported by James Bardin.

2013-09-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/miff.c: PseudoClass format was written incorrectly in
	that sample storage size is supposed to be selected based on the
	size of the colormap, but it was being selected based on the depth
	parameter instead, leading to excessively sized files and failure
	to read what was written.  RLE compressed formats had the sense of
	the alpha channel inverted from the other compression methods, and
	contrary to the specification.  PseudoClass with Alpha was not
	supported at all, and reading a file claiming to be such caused an
	assertion to be thrown.  Note that these fixes may cause some
	existing files to no longer be read correctly.

	* coders/xpm.c (ReadXPMImage): XPM is rarely used to produce
	16-bit output.  Set image depth based on the colormap.

	* coders/tim.c (ReadTIMImage): PSX TIM is not able to produce more
	than 8-bit output, set image depth appropriately.

2013-09-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (WriteTIFFImage): Increase rows-per-strip as
	required to try to avoid more than 32K strips per image since some
	programs seem to use a 16-bit strip counter and fail with more
	than 32K strips.  Problem was reported by Kevin Myers.

	* magick/transform.c (MosaicImages): Fix unsigned underflow
	problem with -mosaic when page offset is negative and exceeds
	image width or height.  This problem caused assertions, out of
	memory errors, or pixel cache limit errors due to requesting an
	image of outrageous size.

2013-08-26  Jaroslav Fojtik  <JaFojtik@seznam.cz>
        * dcraw\dcraw.c Updated from autor
        * dcraw\dcraw.c.patch

2013-08-25  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pnm.c (ReadPNMImage): Fix SourceForge issue #237
	"Incorrect MAXVAL scaling when reading PAM images".

2013-08-10  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Improve error handling so that
	rendering bails on image access/update errors.  Resolves
	SourceForge issues #233 "Another SVG that hangs GraphicsMagick"
	and #232 "Another SVG that hangs GraphicsMagick".  The resolution
	of the bug is to return from image access/update error right away
	rather than adjusting the rendering density to produce a smaller
	image.

	* magick/error.h: Hide exception throwing convenience macros under
	MAGICK_IMPLEMENTATION definition.

	* Magick++/demo/demos.tap: Fix file naming for 'zoom' demos.

	* magick/annotate.c (RenderFreetype): Improve error handling so
	that rendering bails on image access/update errors.

2013-08-02  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadOnePNGImage): ping a png faster by
	returning the image without reading the pixel data.

2013-07-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/xwindow.c (MagickXMakeImage): Only use ThumbnailImage()
	for DirectClass images in order to avoid a crash while creating
	the panner image.

2013-04-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* design/pixel-cache-struct.dot: Update structure relationships
	diagram.

	* design/pixel-cache.dot: Update call flow diagram.

	* magick/pixel_cache.c: Eliminate use of internal functions
	GetNexusIndexes(), GetNexusPixels().  Reduce usage of internal
	function IsNexusInCore().

2013-04-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac: MAGICK_SSIZE_T should always be a signed type.

	* coders/jpeg.c (WriteXMPProfile): Add support for writing 'XMP'
	profile in JPEG.
	(WriteJPEGImage): Restructure/tidy JPEG profile writing code.

2013-04-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): Return DirectClass images by
	default for MINISWHITE and MINISBLACK TIFF formats.

2013-04-07  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/wpg.c, magick/attribute.c, magick/map.c, magick/render.c,
	magick/widget.c, magick/xwindow.c: Fixes to reduce warnings with
	GCC 4.8.0 at -O3 optimimization level, and for clang 3.2.

2013-04-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/xwindow.c (MagickXMakeImage): Use ThumbnailImage() rather
	than SampleImage() when creating the panner image to improve the
	quality of the image.

2013-03-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/attribute.c (tag_table): Add support for SubjectArea EXIF
	tag.  Resolves SourceForge issue #229 "Cannot Parse the
	SubjectArea EXIF Info".

2013-03-27  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/Hg.rst, www/index.rst: Update SourceForge Mercurial
	repository location (see
	http://hg.code.sf.net/p/graphicsmagick/code) due to project
	"upgrade".  For the moment there are old and new
	repositories. Changes will be pushed to the new repository.

2013-03-25  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/resource.c (InitializeMagickResources): Revert use of
	omp_set_dynamic() since it caused a severe performance regression
	when doing a -stepthreads benchmark or when the number of OpenMP
	threads is set via OMP_NUM_THREADS.

2013-03-17  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* INSTALL-unix.txt: Add a section about building Windows binaries
	by cross-compiling from a Unix/Linux system.

2013-03-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac, magick/magick_types.h.in: Fix issues noticed when
	cross-compiling with MinGW64.

2013-03-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* version.sh, www/index.rst: Prepare for 1.3.18 release.

2013-03-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (DisplayImageCommand): display is supposed to
	respond to +/-usePixmap, but was not.  It was responding to
	+/-use_pixmap.  Now it responds to both.

2013-03-03  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* doc/GraphicsMagick.imdoc: Relocated some <im> .. </im> tags, to
	include several paragraphs that were omitted from the
	GraphicsMagick man page (Environment, Configuration Files, and
	Copyright).

	* doc/imdoc2man: the </pre> tag was being deleted instead of
	replaced with nothing, which caused the first line of the
	subsequent material to be joined to the last line of the <pre>
	block.

2013-03-02  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (ReadOnePNGImage): Avoid a libpng16 warning about
	storing unknown chunks.

2013-02-25  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (WriteOnePNGImage): Call png_set_bKGD(), etc.,
	after png_set_IHDR() because they depend on members of info_ptr
	which are set by png_set_IHDR().

2013-02-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/resource.c (InitializeMagickResources): Enable the
	dynamic adjustment of OpenMP threads if there is more than one
	thread available.

2013-02-18  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* configure.ac and configure: Check for libpng17 and libpng16.

2013-02-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/programming.rst: Add mention of Clement Farabet's Lua
	scripting language wrapper for GraphicsMagick.

2013-02-10  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/pixel_cache.c (GetCacheNexus): Re-write function so it
	has a single point of return.
	(AcquireCacheNexus): Reduce the number of return points.
	(SetCacheNexus): Re-write function so it has a single point of
	return.

2013-02-02  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update with latest news.

	* magick/export.c (ExportAlphaQuantumType): Fix export of alpha
	for RGBA image and depth 8.  Due to typo, was exporting 16-bits
	rather than 8, causing output corruption or crashes.  Resolves
	issue reported in SourceForge GraphicsMagick forum under title
	"CMYK per-channel byte order TIFF crashes gm".

2013-02-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/studio.h (MagickIsBlank): Add macro to substitute for ISO
	C99 isblank() which is not globally available.  Update 'gm batch'
	code which had substituted isspace() for isblank() to use it.

2013-01-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (BatchCommand): Flush stdout at key points in
	order to ensure that user sees text when it is produced.

2013-01-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/random.c (InitializeMagickRandomGenerator): Use
	MagickTsdKeyCreate2() in order to avoid a small memory leak.

	* magick/tsd.c (MagickTsdKeyCreate2): New private function to
	support allocating a thread-specific data key with a specified
	destructor function.  For single-threaded build, MagickTsdKey_t is
	now type void* and there is provision to support the destructor
	function.

2013-01-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (BatchCommand): New 'gm batch' command to
	accept one or more GraphicsMagick commands from a specified text
	file, standard input, or CLI.  Feature is implemented by Kenneth
	Xu.  Submitted via SourceForge Patch #3602331 "Add interactive or
	batch mode support to 1.3.17".

2013-01-27  Glenn Randers-Pehrson  <glennrp@simple.dallas.tx.us>

	* coders/png.c (WriteOnePNGImage): 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).

2013-01-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/png.c (WriteOnePNGImage): PNG8 support was using
	image->colors to decide if the input image is PseudoClass.  This
	is totally bogus.  Use image->storage_class to determine if image
	is PseudoClass and quantize image colors if it is not.

	* magick/delegate.c (InvokePostscriptDelegate): Only invoke
	MagickSpawnVP() if Ghostscript filename argument is non-empty.
	This argument may be empty if Ghostscript is not found on a
	Windows system.  Report a "Failed to find Ghostscript" error if
	the Ghostscript command name is empty. Resolves SourceForge issue
	#3601816 "Win64 build crashes trying to convert PDF to any other
	format".

	* magick/utility.c (MagickSpawnVP): Verify that file argument is
	non-NULL and not empty.

2013-01-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* VisualMagick/tiff/LIBRARY.txt: Fix pre-processor definitions for
	libtiff so that they use multiple statements rather than one long
	statement.  Resolves SourceForge issue 3601001 "libtiff won't
	compile with ICL".

2013-01-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/memory.h (MagickAllocateAlignedArray): New macro to wrap
	use of MagickMallocAlignedArray().

	* magick/memory.c (MagickMallocAlignedArray): New private function
	to support safe allocation of an array in memory with a specified
	alignment.  Allocation may only be freed using MagickFreeAligned()
	and the allocation may not be reallocated.

2013-01-05  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/{animate.c,display.c,utility.c}: Only invoke chdir() if
	path is not an empty string.  Previously sometimes chdir() was
	passed an empty string (because chdir() was not needed) and this
	was ok because we ignored the error status.  Now that we check the
	chdir() error status, some X11 GUI functions (e.g. save file to
	current directory) encounter annoying issues.

	* magick/shear.c (IntegralRotateImage): Limit integral rotate to
	two threads.

	* coders/pnm.c (ReadPNMImage): Limit PNM reader to two threads.

2013-01-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac (MAGICK_FEATURES): MinGW static build does not
	build modules so MODULES feature should not be listed as
	supported.  Resolves MinGW test failures.

	* coders/dpx.c (OrientationTypeToDPXOrientation): Return U16 type
	as stored in DPX format.

	* coders/cineon.c: Add support for reading/writing 'orientation'
	setting.

	* coders/mpc.c: Add support for reading/writing 'orientation'
	setting.

	* coders/miff.c: Add support for reading/writing 'orientation'
	setting.

	* Rotate ChangeLog for 2012 and update web page copyright years.