ChangeLog.2020

2020-12-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* utilities/tests/convert-cmds.txt: A list of convert commands to
	exercise.

	* utilities/tests/convert.tap: TAP script to exercise convert
	commands.

	* coders/identity.c (ReadIdentityImage): Don't lose exception info
	if an image is not returned.

	* tests/rwfile_sized.tap: Add tests for CMYK, RGB, and RGBA raw
	interlaced files.

	* tests/rwblob.c (main): Add a -interlace option.

	* tests/rwfile.c (main): Add a -interlace option.

	* coders/cmyk.c (ReadCMYKImage): Fix broken reading of planar
	CYMYK/CMYKA files.  Regression added in the 1.3.27 release.

	* coders/rgb.c (ReadRGBImage): Fix broken reading of planar RGB
	files.  This regression was added while adding security fixes
	starting in the 1.3.27 release. Fixes SourceForge issue #637
	"Import of raw RGB image data fails since 1.3.27.

	* coders/dpx.c: Add casts to avoid warnings when compiling under
	MinGW.

	* coders/meta.c (super_fgets_w): Assure that returned pointer
	value is the same as reported via 'b'.  Use size_t for sizes
	rather than int.
	(super_fgets): Assure that returned pointer
	value is the same as reported via 'b'.  Use size_t for sizes
	rather than int.

	* coders/miff.c (ReadMIFFImage): 'i' should be unsigned.
	(WriteMIFFImage): 'i' should be unsigned.

2020-12-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/mpc.c (ReadMPCImage): 'i' should be unsigned.

	* magick/random.c (InitializeMagickRandomKernel): 'done' is not
	used in all compilation implementations.

	* magick/nt_feature.c (CropImageToHBITMAP): Dependent on HasWINGDI32.
	(ImageToHBITMAP): Dependent on HasWINGDI32.

	* coders/jp2.c: JasPer changed its jas_stream_ops_t callback
	interfaces in releases 2.0.19 and 2.0.20.  Provide the newer
	interfaces by default, but use a MAGICK_JP2_OLD_STREAM_INTERFACE
	pre-processor definition to support selecting the old interfaces.
	This mostly eliminates compilation warnings since the interfaces
	are mostly binary compatible (within the positive range of an
	integer).  In the 1.3.36 a MAGICK_JP2_NEW_STREAM_INTERFACE
	definition was supported. It is assumed that Jasper libraries
	should soon be updated to the latest version due to severe
	security defects in older releases.

	* configure.ac: The gdi32 test was faulty since both gdi32 and
	user32 libraries are required.

2020-12-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* version.sh: Updates in preparation for the 1.3.36 release.

	* bootstrap: Fix config.guess and config.sub download URLs.

2020-12-25  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* design/pixel-cache.dot: Fix reported syntax errors.

	* coders/mpc.c (ReadMPCImage): Report correct exception reason.

	* coders/miff.c (ReadMIFFImage): Arbitrarily limit the number of
	header keywords to avoid DOS attempts.
	(ReadMIFFImage): Finish updates to use resource-limited memory
	allocator.
	(WriteMIFFImage): Finish updates to use resource-limited memory
	allocator.

	* coders/mpc.c (ReadMPCImage): Arbitrarily limit the number of
	header keywords to avoid DOS attempts.  Fixes oss-fuzz 28956
	"Timeout - coder_MPC_fuzzer".

2020-12-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (AffineEdge): Use MagickDoubleToLong();

	* magick/utility.c (MagickDoubleToLong): New private function to
	convert a 'double' to a 'long' with the minimum amount of harm.

	* magick/segment.c (Classify): Remove variables from function
	global scope that don't need outer scope.

	* coders/jp2.c: JasPer changed its jas_stream_ops_t callback
	interfaces in releases 2.0.19 and 2.0.20.  Revert to providing the
	older interfaces by default, but use a
	MAGICK_JP2_NEW_STREAM_INTERFACE pre-processor definition to
	support selecting the new interfaces.  We don't know how to
	usefully tell the JasPer version at compile time!  Luckily, using
	the older interfaces only causes a compiler warning rather than a
	run-time issue.

	* coders/mac.c (ReadMACImage): Use size_t type for 'ldblk' to
	avoid possible overflow.

2020-12-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update the news to the date December 23, 2020.

2020-12-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/image.c (AllocateImage): Satisfy conditions for
	DestroyImage() as soon as possible and use it for clean-up on
	error.  Added more error checks.
	(CloneImage): Satisfy conditions for DestroyImage() as soon as
	possible and use it for clean-up on error.  Don't attempt to copy
	colormap if colors is zero.  Added more error checks.
	(DestroyImage): Assure that we can destroy a partially-constructed
	Image.

	* magick/effect.c (BlurImage): Fix null pointer dereference if
	image failed to be created.
	(DespeckleImage): Fix null pointer dereference if image failed to
	be created.
	(EnhanceImage): Fix null pointer dereference if image failed to be
	created.
	(GaussianBlurImage): Fix null pointer dereference if image failed
	to be created.
	(MedianFilterImage): Fix null pointer dereference if image failed
	to be created.
	(MotionBlurImage): Fix null pointer dereference if image failed to
	be created.
	(ReduceNoiseImage): Fix null pointer dereference if image failed to
	be created.
	(ShadeImage): Fix null pointer dereference if image failed to be
	created.
	(SharpenImage): Fix null pointer dereference if image failed to be
	created.
	(SpreadImage): Fix null pointer dereference if image failed to be
	created.

2020-12-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/jp2.c (BlobWrite): Update Jasper stream OPs callback
	function signatures to exactly match latest jas_stream_ops_t
	definition.  This avoids an annoying warning when using Jasper
	2.0.23 but now causes annoying warnings when using 2.0.12 or
	1.900.1. There does not appear to be a useful way to determine the
	Jasper numeric version (only a C string is available) from its
	header files.

	* magick/decorate.c (FrameImage): Skip attempting to render top or
	bottom of ornamental border if its height is zero.

	* magick/image.c (CloneImage): Set image signature right away in
	case it needs to be destroyed while it is being constructed.

	* wand/drawtest.c (main): MagickGetFilename() allocates a new
	string so make sure to free it.

	* tests/constitute.c (main): Destroy ExceptionInfo to avoid memory
	leak if an exception was thrown.

	* magick/effect.c (EdgeImage): Fix null pointer dereference if
	edge image failed to be created.

	* magick/compress.c (HuffmanEncode2Image): Fix error handling
	issues.

	* magick/command.c (CompareImageCommand): Fix memory leaks when an
	input image failed to be read.
	(CompositeImageCommand): Fix memory leaks when an input image
	failed to be read.

	* coders/fax.c (WriteFAXImage): Fix error handling.

	* coders/mpc.c (ReadMPCImage): Use correct deallocator for page
	geometry.  Fixes oss-fuzz 28853 "Heap-buffer-overflow READ {*} -
	_MagickReallocateResourceLimitedMemory".

2020-12-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/yuv.c: Use resource-limited memory allocator.

	* coders/xwd.c: Use resource-limited memory allocator.

	* coders/xpm.c: Use resource-limited memory allocator.

	* coders/xcf.c: Use resource-limited memory allocator.

	* coders/xbm.c: Use resource-limited memory allocator.

	* coders/wpg.c: Use resource-limited memory allocator.

	* coders/viff.c: Use resource-limited memory allocator.

	* coders/vicar.c: Use resource-limited memory allocator.

	* coders/uil.c: Use resource-limited memory allocator.

	* coders/txt.c: Use resource-limited memory allocator.

	* coders/topol.c: Use resource-limited memory allocator.

	* coders/tim.c: Use resource-limited memory allocator.

	* coders/tiff.c: Use resource-limited memory allocator.

	* coders/tga.c: Use resource-limited memory allocator.

	* coders/sun.c: Use resource-limited memory allocator.

	* coders/sgi.c: Use resource-limited memory allocator.

	* coders/sfw.c: Use resource-limited memory allocator.

	* coders/rle.c: Use resource-limited memory allocator.

	* coders/rla.c: Use resource-limited memory allocator.

	* coders/rgb.c: Use resource-limited memory allocator.

	* coders/psd.c: Use resource-limited memory allocator.

	* coders/ps3.c: Use resource-limited memory allocator.

	* coders/ps2.c: Use resource-limited memory allocator.

	* coders/pnm.c: Use resource-limited memory allocator.

	* coders/pdf.c: Use resource-limited memory allocator.

	* coders/pdb.c: Use resource-limited memory allocator.

	* coders/pcl.c: Use resource-limited memory allocator.

	* coders/pcd.c: Use resource-limited memory allocator.

	* coders/palm.c: Use resource-limited memory allocator.

	* coders/mtv.c: Use resource-limited memory allocator.

	* coders/mpc.c: Use resource-limited memory allocator.

	* coders/meta.c: Use resource-limited memory allocator.

	* coders/map.c: Use resource-limited memory allocator.

	* coders/jpeg.c: Use resource-limited memory allocator.

	* coders/jp2.c: Use resource-limited memory allocator.

	* coders/jnx.c: Use resource-limited memory allocator.

	* coders/icon.c: Use resource-limited memory allocator.

	* coders/hrz.c: Use resource-limited memory allocator.

	* coders/histogram.c: Use resource-limited memory allocator.

	* coders/gray.c: Use resource-limited memory allocator.

	* coders/fpx.c: Use resource-limited memory allocator.

	* coders/emf.c: Use resource-limited memory allocator.

	* coders/dpx.c: Use resource-limited memory allocator.

	* coders/dps.c: Use resource-limited memory allocator.

	* coders/dcm.c: Use resource-limited memory allocator.

	* coders/cut.c: Use resource-limited memory allocator.

	* coders/cmyk.c: Use resource-limited memory allocator.

	* coders/cineon.c: Use resource-limited memory allocator.

	* coders/avs.c: Use resource-limited memory allocator.

	* coders/art.c: Use resource-limited memory allocator.

	* coders/pcx.c: Use resource-limited memory allocator.

	* coders/mac.c: Use resource-limited memory allocator.

	* coders/pict.c: Use resource-limited memory allocator.

	* magick/memory.c (_MagickReallocateResourceLimitedMemory): Add a
	'clear' parameter which indicates that freshly allocated memory
	should be zeroed.  Added "Cleared" versions of the private managed
	memory macros and updated all managed memory macros to exclusively
	use this function.

2020-12-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* Update Automake to 1.16.3 and bootstrap to pick up latest
	config.guess and config.sub.

2020-12-17  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/miff.c (ImportRLEPixels): Change from C assertion to
	exception report.  Fixes oss-fuzz 28703 "ASSERT · ((quantum_type
	== IndexQuantum) && (image->storage_class ...".
	(ReadMIFFImage): Read Gray DirectClass image as PseudoClass so it
	has a colormap, and we have a RLE decode implementation for it.

2020-12-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/paint.c (OpaqueImage): Changing the image storage class
	is not required.

2020-12-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/paint.c (OpaqueImage): Assure that image type is promoted
	as required based on fill color.  Fixes unexpected results
	discovered by Stuart McDonagh and reported via the
	graphicsmagick-help mailing list on December 14, 2020.

2020-12-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Set '[MVG]' image attribute at
	appropriate places outside of DrawImage() since DrawImage()
	sometimes recurses into itself, trashing the image attribute.  One
	example of recursion is in the text annotation code.

	* coders/svg.c (ReadSVGImage): Properly support 'ping' mode so
	'identify' works as expected.

	* magick/render.c (InsertAttributeIntoInputStream): Provide a more
	useful diagnostic for when a "use" or "class" argument id is not
	defined.

2020-12-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Fix regression when parsing "mask"
	which was added by changeset 16305:f33a0fb3d8e4 on July 15, 2020
	since the last formal release.  This impacts MVG and SVG.

2020-12-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/INSTALL-unix.rst: Document the '--disable-compressed-files'
	configure option, which was added on July 15th.

2020-12-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/magic.c: Don't send files which test positive for PCL to
	the HPGL delegate, which is normally 'hp2xx'.  Fixes SourceForge
	bug 607 "Slow to convert HP PCL printer data".

2020-12-05  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Use unique image attribute space
	for MVG symbols.  Fixes oss-fuzz 28111 "Timeout -
	coder_MVG_fuzzer", oss-fuzz 28170 "Stack-overflow - DrawImage",
	and oss-fuzz 28292 "Integer-overflow - DrawPolygonPrimitive".

2020-12-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Verify that affine scaling factors
	are not zero.  Fixes oss-fuzz 28293 "Divide-by-zero -
	InverseAffineMatrix".
	(DrawPolygonPrimitive): Thread error status check was at wrong
	scope, resulting in code executing when it should have quit.

2020-12-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/magick_types.h.in: Stop trying to define PTRDIFF_MAX.

2020-11-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/magick_types.h.in: Provide PTRDIFF_MAX for Visual Studio
	if it is missing.

	* fuzzing/oss-fuzz-build.sh: Disable old JPEG support in libtiff.

	* coders/mat.c (ReadMATImage): Use resource-limited memory
	allocator.
	(WriteMATLABImage): Use resource-limited memory allocator.

2020-11-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update the news to the date November 28, 2020.

	* coders/png.c (ReadOneJNGImage): Verify and enforce
	Alpha_compression_method values.  Request that color and alpha
	decoders return just one frame.  Force decoder format to disable
	auto-detection.  Assume that coder messed up and might have
	returned more than one frame.  Fixes oss-fuzz 28013 "Indirect-leak
	. MagickMalloc".

	* magick/memory-private.h (MagickReallocateResourceLimitedMemory):
	Fix typo in macro definition which resulted in a memory
	reallocation leak!

	* Magick++/lib/Magick++/Drawable.h: Decided to continue using
	std::unary_function if C++ version is less than C++'17 since
	otherwise it may be changing an interface.

2020-11-27  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/gif.c (ReadGIFImage): Use resource-limited memory
	allocator when reading the comment extension.

	* Magick++/lib/Magick++/Drawable.h: Remove inheritance from
	std::unary_function, which was removed in C++'17.

	* coders/webp.c (ReadWEBPImage): Use resource-limited memory
	allocator.
	(WriteWEBPImage): Use resource-limited memory allocator.

	* coders/jbig.c (WriteJBIGImage): Use resource-limited memory
	allocator.

	* coders/fits.c (ReadFITSImage): Use resource-limited memory
	allocator.
	(WriteFITSImage): Use resource-limited memory allocator.

	* coders/dib.c (ReadDIBImage): Use resource-limited memory
	allocator.
	(WriteDIBImage): Use resource-limited memory allocator.

	* coders/bmp.c (ReadBMPImage): Use resource-limited memory
	allocator.
	(WriteBMPImage): Use resource-limited memory allocator.

2020-11-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): Improve RGBATiledMethod progress
	monitor so it reports more steps.
	(ReadTIFFImage): Improve TiledMethod progress monitor so it
	reports more steps.

	* fuzzing/utils.cc (class MagickState): Enable tracing of
	exception events in order to help discover the origin of errors.
	If too much output comes out, then this will be removed.

	* magick/render.c (ConvertPathToPolygon): Attempt to fix leak of
	'points' on memory allocation failure.

2020-11-25  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (ConvertPathToPolygon): Make sure not to leak
	points from added Edge.  Fixes oss-fuzz 27608 "Direct-leak in
	_MagickReallocateResourceLimitedMemory".
	(DrawDashPolygon): Place an aribrary limit on stroke dash polygon
	unit maximum length in order to avoid possibly rendering
	"forever".  Addresses oss-fuzz 24236 "Timeout in
	coder_MVG_fuzzer".

2020-11-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawPolygonPrimitive): Try to minimize the
	impact of too many threads due to replicated data until such time
	as the data structures can be re-designed to directly support
	threading.

2020-11-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/Hg.rst: Describe how to clone the repository from
	SourceForge using the ssh protocol rather than https.

	* coders/ps.c (WritePSImage): Fix problem when writing PseudoClass
	image with a colormap larger than two entries as bilevel.
	Previous implementation was assuming that the colormap would only
	include two entries for a monochrome image, but many entries may
	exist in the colormap which were never used.  Fixes SourceForge
	issue #635 "gm convert failure from .pgm to .eps".

2020-11-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* fuzzing/utils.cc (class MagickState): Set DiskResource limit to
	zero so that pixel cache won't spill over to using temporary
	files.

2020-11-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update the news to the date November 16, 2020.

2020-11-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/svg.c (ReadSVGImage): Fix memory leak due to CDATA block,
	and some other possible small leaks.

	* magick/magick.c (InitializeMagickEx): Set C pre-processor
	definition USE_GLIBC_MTRACE to 1 in order to enable Linux mtrace
	support.

	* magick/render.c (ConvertPathToPolygon): Fix memory leak upon
	memory reallocation failure.  Addresses oss-fuzz 27351
	"Direct-leak in _MagickReallocateResourceLimitedMemory".

	* magick/memory.c (_MagickReallocateResourceLimitedMemory): Return
	pointer to the allocation similar to realloc() and do not
	automatically free existing memory upon allocation failure.

2020-11-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* common.shi.in: Apply some resource limits while running the test
	suite.
	(Q8_MEMORY_LIMIT): Set the test suite memory limit to 128MB for
	Q8, or 256MB for Q16, or 512MB for the Q32 build.
	(MAGICK_LIMIT_DISK): Set the test suite disk space limit to 0 to
	avoid spilling over into disk files when the memory limit runs
	out.

	* coders/miff.c (WriteMIFFImage): Update to use resource-limit
	respecting memory allocators.

2020-11-07  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/miff.c (ReadMIFFImage): Update to use resource-limit
	respecting memory allocators.

	* magick/render.c (DrawImage): Update to use resource-limit
	respecting memory allocators.

	* magick/memory.c (_MagickReallocateResourceLimitedMemory): Add
	new private interfaces for allocating private memory while
	respecting resource limits.

2020-10-25  Bob Friesenhahn  <bfriesen@bobsdell>

	* magick/render.c (DrawImage): Reject pattern image with a
	dimension of zero.  Fixes oss-fuzz issue 26382
	"graphicsmagick:coder_MVG_fuzzer: Floating-point-exception in
	DrawPrimitive".

2020-10-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/constitute.c (ConstituteImage): Set image depth
	appropriately based on the storage size specified by StorageType
	and QuantumDepth.

2020-10-11  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawPrimitive): Use DestroyImageList() to
	destroy composite_image since it may be a list.  Fixes oss-fuzz
	25247 "Indirect-leak in MagickMalloc".
	(DrawPrimitive): Add ImageInfo properties to request only
	returning the first frame if the in-line image is a list.  Also,
	add a missing DestroyImageList() request if multiple-frames were
	returned.

	* magick/transform.c (TransformImage): Use ReplaceImageInList()
	replace transformed image in list.

	* magick/list.c (ReplaceImageInList): Remove previous and next
	references from removed image before destroying it.

	* magick/render.c (DrawClipPath): Remove break statement so that
	added clip-mask image is initialized properly and rendered-on as
	expected.  Thanks to László Böszörményi for reporting this problem
	prior to release.

2020-10-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac (AC_PROG_CC_STDC): AC_PROG_CC_STDC is no longer
	required since AC_PROG_CC now provides its useful function.
	AC_PROG_CC_STDC is marked as obsolete after Autoconf 2.69.
	Quote all arguments to m4 macros.

2020-09-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac: Update syntax to avoid using deprecated syntax
	according to Autoconf 2.69.

2020-09-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/webp.c (ReadWEBPImage): Use SetImageProfile() rather than
	AppendImageProfile().

2020-09-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/magick_wand.c (MagickSetSamplingFactors): Correct
	formatting of sampling factors string.  Fixes SourceForge issue
	633 "MagickSetSamplingFactors() API mismatch - comma separated
	values instead of 1x1 ".

2020-09-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawPrimitive): Improve error checking related
	to ImagePrimitive.

	* magick/resize.c (ResizeImage): If CloneImage() of resize_image
	to source_image fails then free source_image allocation before
	returning in order to prevent memory leak.

	* magick/image.c (CloneImage): Free clone_image allocation if
	ImgExtra allocation fails in order to prevent memory leak.  Fixes
	oss-fuzz 25342 "Indirect-leak in MagickMalloc".
	(SetImageOpacity): SetImageOpacity() now returns error status
	since it is possible for it to fail.

2020-09-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): Ignore corrupt whitepoint and
	primary chromaticities tags.  Fixes oss-fuzz issue 25507
	"Divide-by-zero in DoubleToRational".  The divide by zero is
	actually in libtiff, but the bad values from the input file were
	propagated through GraphicsMagick.

2020-09-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/analyze.c (GetImageBoundingBox): Use solution proposed by
	Troy Patteson to solve SourceForge issue 345 "MagickTrimImage with
	extreme fuzz can produce image with negative width".

2020-08-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (ReadTIFFImage): Apply the same resource limits to
	TIFF tile sizes as apply to the image itself.  Fixes oss-fuzz
	issues 24523 "Timeout in coder_TIFF_fuzzer" and 24810 "Timeout in
	coder_PTIF_fuzzer".

2020-08-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac: Add --without-gdi32 configure option to support
	disabling use of the Microsoft Windows gdi32 library if it is not
	wanted.

2020-08-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac: Remove the assumption that a native Windows build
	means that Ghostscript may be available so that MinGW tests which
	depend on Ghostcript are attributed proper XFAIL status by the
	test suite.

2020-08-10  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/magick.c (MagickCondSignal): Explicitly initialize 'oact'
	prior to calling sigaction() in order to attempt to surmount
	apparent oss-fuzz framework issue.

2020-08-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/delegate.c, magick/magick.c, magick/nt_base.c: Fix
	compilation errors under MinGW when Ghostscript support is
	disabled.

2020-08-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/nt_base.c: Fix compilation issue noticed under MinGW.

	* magick/render.c (DrawImage): Handle the case that
	ExtractTokensBetweenPushPop() can return NULL.  Fixes oss-fuzz
	24659 "Null-dereference READ in DrawImage".

	* magick/magick.c (MagickCondSignal): Re-implement to handle the
	case where a new-style 'siginfo' signal handler was previously
	registered, as well as the legacy type.  This may address oss-fuzz
	24690 "Use-of-uninitialized-value in MagickCondSignal".

2020-07-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* wand/drawtest.c: Use structured error handling and report all
	output to stderr so it does not screw up TAP tests.

	* magick/render.c (DTOLONG_MIN): Correct 32-bit definition of
	DTOLONG_MIN.

	* wand/wandtests.tap: Wand drawtest requires FreeType.

	* NEWS.txt: Update with changes up to 2020-07-26.

	* VisualMagick/magick/magick_config.h.in (HasGS): Default HasGS to
	enabled.

	* configure.ac: Add a --without-gs configure option to disable
	reading PS, EPS, and PDF formats via an external Ghostscript
	delegate program.  This is intended as an absolute security
	measure for sites that want to be assured to avoid executing
	Ghostscript even though it is installed on the system.  Removal of
	PS and PDF reading support breaks reading other formats which are
	handled by executing an external program to first convert to PS or
	PDF formats.

	* magick/delegate.c (InvokePostscriptDelegate): Use HasGS to
	enable use of the Ghostscript delegate.  Change the existing
	legacy HasGS ifdefs to HasGSLIB.

2020-07-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (WriteTIFFImage): Fix compilation error when
	COMPRESSION_WEBP is not defined.

2020-07-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* configure.ac: Fix enableval syntax for
	--disable-compressed-files.

2020-07-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (CompareImageCommand): Merge changeset by
	谢致邦 (XIE Zhibang) which adds 'matte' support to the compare
	command. However, substantially reduce the amount of changes
	by avoiding adding a new public function.  Documentation
	regarding how 'compare' uses this option is also added.

	* magick/command.c: Merge changeset by谢致邦 (XIE Zhibang)
	regarding Some duplicate "verbose" should be "version".

	* configure.ac, magick/blob.c: Merge changeset by Przemysław
	Sobala regarding "Configure: add --with(out)-compressed-files
	option".  The configure option was changed to
	--disable-compressed-files during the merge since it is more
	appropriate.

2020-07-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update with changes up to 2020-07-15.

	* magick/render.c (DrawImage): Improve error handling so errors
	are returned when they should be.  Fixes oss-fuzz 24117
	"Stack-overflow in DrawImage" and oss-fuzz 24126 "Timeout in
	coder_MVG_fuzzer".  Restore the original behavior of
	DrawClipPath() when there is no matching clip-path attribute.

2020-07-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update with changes up to 2020-07-12.

2020-07-11  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/xwindow.c (MagickXVisualColormapSize): Fix UBSAN integer
	overflow warning.

	* magick/render.c (DrawClipPath): Report only a warning if there
	is no clip mask.
	(ExtractTokensBetweenPushPop): Verify that the expected/required
	pop statement is indeed found.  Fixes oss-fuzz 23498 "Timeout in
	coder_MVG_fuzzer".

2020-06-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/constitute.c (ReadImage): Improve error handling related
	to ImageToFile().

	* magick/image.c (SetImageInfo): Improve error handling related to
	ImageToFile().

	* coders/mat.c: Check MagickFindRawImageMinMax() return status.

	* magick/constitute.c (MagickFindRawImageMinMax): Verify that the
	original seek position was restored.

2020-06-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Apply stricter range limits when
	converting a double to a long in order to avoid integer overflow.
	Fixes oss-fuzz 23304 "Integer-overflow in DrawImage".
	(DrawClipPath): If there is no matching clip-path attribute then
	return an informative error.  Fixes oss-fuzz 23187 "Stack-overflow
	in DrawImage" which is actually a case of DrawImage() /
	DrawClipPath() recursion.

2020-06-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/wpg.c (UnpackWPGRaster): Fix oss-fuzz 23042
	"Heap-buffer-overflow in ImportGrayQuantumType" and oss-fuzz
	"Heap-buffer-overflow in InsertRow" which are both from the same
	cause.

2020-06-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/pixel_cache.c (ClipCacheNexus): Change x and y variables
	to unsigned type.

2020-05-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (WriteTIFFImage): WebP compression only supports a
	depth of 8.  Fixes oss-fuzz 22560 "Use-of-uninitialized-value in
	GammaToLinear".

2020-05-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/wpg.c (ReadWPGImage): Terminate reading when a pixel
	cache resource limit is hit rather than moving on to heap buffer
	overflow.  Fixes oss-fuzz 20045, 20318, 21956

	* coders/png.c (ReadMNGImage): If the image width is 1, then X
	magnification is done by by simple pixel replication.  If the
	image height is 1, then Y magnification is done by simple pixel
	replication.  Fixes oss-fuzz issue 19025 "Heap-buffer-overflow in
	ReadMNGImage" and oss-fuzz issue 19026 "ASSERT: yy < (long)
	large_image->rows". It appears that CERT has assigned
	CVE-2020-12672 for oss-fuzz issue 19025.  Note that the heap
	overwrite is only one byte.

2020-05-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update with changes up to 2020-04-23.

2020-04-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/dpx.c (ReadDPXImage): Support dpx:swap-samples-read
	define which behaves similar to dpx:swap-samples, but is only
	applied when reading.  This provides for use when there is both
	reading and writing in the same operation.
	(WriteDPXImage): Support dpx:swap-samples-write define which
	behaves similar to dpx:swap-samples, but is only applied when
	writing.  This provides for use when there is both reading and
	writing in the same operation.

2020-04-18  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick: Fix remaining GCC 10 warnings.

2020-04-17  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/transform.c (GetImageMosaicDimensions): Mark function as pure.

	* magick/effect.c (GetNonpeakMedianList): Mark function as pure.

	* coders/fits.c (InsertRowHDU): Fix scary-sounding GCC 10 warning,
	which is actually benign.

	* config/config.sub: Update to latest config.sub

	* config/config.guess: Update to latest config.guess.

	* Makefile.am: Update to Automake 1.16.2

2020-04-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/dpx.c (ReadRowSamples): Simplify 10-bit packed decoding.
	(WriteRowSamples): Simplify 10-bit packed encoding.

	* coders/locale.c (ReadConfigureFile): Ignore comment element if
	it was not found or is too short.

	* magick/pixel_cache.c (ReadCacheIndexes): If SetNexus() has
	previously failed to allocate the staging buffer and thus reported
	an exception to the user, then ReadCacheIndexes() should report an
	error rather than blundering into copying indexes data to a null
	pointer.

	* magick/effect.c (AdaptiveThresholdImage): Assure that we don't
	attempt to write to output pixels if they have not been selected
	yet.

	* magick/utility.c (ExpandFilenames): Properly handle NULL
	filelist and NULL filelist entries.
	(GetGeometry): Assure that there is no one-character stack read
	overflow when reading the geometry buffer.

2020-03-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* fuzzing/oss-fuzz-build.sh: Restore xz to oss-fuzz build due to
	build problems getting worked out.

2020-03-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* fuzzing/oss-fuzz-build.sh (MAGICK_LIBS): Remove mention of
	liblzma.a in the oss-fuzz build until its build problems get
	worked out.

2020-03-27  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* fuzzing/oss-fuzz-build.sh: Skip building xz in the oss-fuzz
	build until its build problems get worked out.

2020-03-25  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/log.c (InitializeLogInfoPost): Don't load log.mgk if
	logging is already configured to use MethodOutput.

2020-03-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/log.c (InitializeLogInfoPost): Mark that logging is
	configured, regardless of if "log.mgk" was discovered.

2020-03-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* VisualMagick/magick/magick_config.h.in: ProvideDllMain is now
	disabled by default since it causes InitializeMagick() to be
	invoked prior to when the program's main() routine is called,
	thereby blocking configuration activities or use of
	InitializeMagickEx().  With this change it is even more imperative
	that InitializeMagick() be explicitly invoked by all programs
	using GraphicsMagick.

	* magick/log.c (LogMagickEventList): Always use/respect the
	configured log format as might be obtained from "log.mgk" or
	SetLogDefaultFormat().

	* magick/utility.c (MagickFormatString): Return the size of the
	formatted string.
	(MagickFormatStringList): Return the size of the formatted string.
	(FormatString): Return the size of the formatted string.
	(FormatStringList): Return the size of the formatted string.

2020-03-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/api/types.rst: Improved types documentation and added more
	hyperlinks.

	* scripts/format_c_api_doc.py: Add hyperlinks for 'LogMethod' and
	'LogOutputType' type documentation.

	* Magick++/lib/Image.cpp (SetLogDefaultEventType): New C++ function to
	forward to C interface.
	(SetLogDefaultGenerations): New C++ function to forward to C
	interface.
	(SetLogDefaultLimit): New C++ function to forward to C interface.
	(SetLogDefaultFormat(): New C++ function to forward to C
	interface.
	(SetLogDefaultLogMethod): New C++ function to forward to C
	interface.
	(SetLogDefaultFileName): New C++ function to forward to C
	interface.
	(SetLogDefaultOutputType): New C++ function to forward to C
	interface.

	* magick/log.c (SetLogDefaultEventType): New function to support
	setting the default set of events which will result in a log
	event.
	(SetLogDefaultGenerations): New function to specify the maximum
	number of log files maintain before circulating back to overwrite
	the first name.
	(SetLogDefaultLimit): New function to specify the maximum number
	of logging events which may occur before creating a new log file.
	(SetLogDefaultLogMethod): New function to provide a call-back
	function to be invoked for each log event when the logging method
	type is MethodOutput.
	(SetLogDefaultOutputType): New function to set the logging output
	destination.
	(SetLogDefaultFormat): New function to provide the format of the
	logging output.
	(SetLogDefaultFileName): New function to provide the file name,
	or file path, to be written to for each log event.
	(InitializeLogInfo): If a default logging callback was provided
	via SetLogDefaultLogMethod() then skip searching for "log.mgk".
	In this case it is assumed that the API user has already changed
	any other logging default which would have been updated by
	"log.mgk" so it would be harmful to search for it, or read from
	it.

2020-03-10  Troy Patteson  <troyp@ieee.org>

	* coders/png.c (WriteOnePNGImage): Don't skip optional Exif
	identifier code if it isn't present.

2020-03-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/pixel_cache.c (ModifyCache): Destroy clone_image.cache if
	ClonePixelCache() reports failure.  Fixes oss-fuzz 20871
	"graphicsmagick:coder_MVG_fuzzer: Direct-leak in
	MagickMallocAligned".

	* magick/log.c (LogMagickEventList): Prepare source module base
	name more efficiently.  Move MethodOutput implementation to the
	front so it is not filtered by other active blocks.
	(LogMagickEventList): Cache broken-down time structure in LogInfo
	and recompute only when needed.

2020-03-07  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/resize.c (HorizontalFilter): Improve tracing.
	(VerticalFilter): Improve tracing.
	(ResizeImage): Improve tracing.

	* www/api/api.rst: Add functions from log.c and render.c.

	* magick/log.c (DestroyLogInfo): DestroyLogInfo is no longer
	marked MagickExport.

2020-03-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/api.h: Add "magick/enum_strings.h" to API headers.
	Requested by Przemysław Sobala via posting to the
	graphicsmagick-help mailing list on 2020-02-27.

	* scripts/html_fragments.py: Automatically generate HTML footer
	content and include commented HTML fragment which may be
	substituted with SF tracker for SourceForge web site.

2020-02-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* version.sh: Updates in preparation for the 1.3.35 release.

	* www/INSTALL-windows.rst: Update Windows installation and build
	documentation.

2020-02-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* NEWS.txt: Update with News since previous release.

	* magick/magick.c (InitializeMagickSignalHandlers): This private
	implementation function is now a static function as it should have
	been.
	(InitializeMagickEx): New function which may be used in place of
	InitializeMagick() to initialize GraphicsMagick.  This
	initialization function returns an error status value, may update
	a passed ExceptionInfo structure with error information, and
	provides an options parameter which supports simple bit-flags to
	tailor initialization.  The signal handler registrations are
	skipped if the MAGICK_OPT_NO_SIGNAL_HANDER flag is set in the
	options.

2020-02-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/magick.c (MagickToMime): Add a MIME translation for
	"jpg".  Issue reported by Pro Turm.

2020-02-18  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* www/INSTALL-windows.rst: Add quoting to avoid losing backslashes
	in Windows paths.

2020-02-16  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/common.h: Add missing unsupported handling for some
	recently added GCC/Clang attributes.

	* magick/: Move all remaining private implementation code in
	public headers which is guarded by MAGICK_IMPLEMENTATION into
	private headers, which are never installed.

2020-02-15  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/tiff.c (WriteTIFFImage): Evidence suggests that large
	strip sizes improve performance by reducing the number of I/Os.
	The defaults suggested by libtiff are way to small for today's
	images and computers.  Default TIFF strip sizes so that each
	uncompressed strip consumes up to 1MiB of memory, or 4MiB for FAX
	oriented codecs, or based on LZMA compression level when using
	LZMA compression.  The default size may be adjusted via the
	TIFF_BYTES_PER_STRIP preprocessor definition.

2020-02-09  Fojtik Jaroslav  <JaFojtik@seznam.cz>

	* coders/wpg.c ZeroFillMissing data will never been triggered when
	y>=image->rows.

2020-02-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Limit pattern dimensions by
	LONG_MAX rather than ULONG_MAX since this seems more likely to
	avoid arithmetic overflows later on.

2020-02-09  Fojtik Jaroslav  <JaFojtik@seznam.cz>

	* coders/wpg.c Check for exception in image.

2020-02-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/command.c (VersionCommand): Add Google perftools tcmalloc
	to the available feature support.

	* www/INSTALL-unix.rst: Include some information about building
	with MSYS2.

	* coders/png.c (ReadOnePNGImage): Eliminate compilation warnings
	about signed/unsigned comparisons.

	* magick/image.c: Remove private global string constants, and one
	private global unsigned long constant, from the library ABI.
	Since the global constants were declared via a private header and
	only used within the GraphicsMagick build, removing these does not
	impact the public ABI.  The globals removed are BackgroundColor,
	BorderColor, DefaultTileFrame, DefaultTileGeometry,
	DefaultTileLabel, ForegroundColor, HighlightColor, MatteColor,
	PSDensityGeometry, PSPageGeometry, and DefaultCompressionQuality.

2020-02-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Apply draconian pattern
	specification offset and dimension validations.  Hopefully there
	is no impact to usability.  If so please report it as a bug.
	Fixes oss-fuzz 20586 "graphicsmagick:coder_MVG_fuzzer:
	Integer-overflow in DrawPolygonPrimitive".

	* coders/svg.c (ReadSVGImage): Fix dereference of NULL pointer
	when stopping image timer.

2020-02-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pict.c (DecodeImage): Allocate extra scanline memory to
	allow small RLE overrun.  Fixes oss-fuzz 20271
	"graphicsmagick:coder_PICT_fuzzer: Heap-buffer-overflow in
	ExpandBuffer" and 20272 "graphicsmagick:coder_PICT_fuzzer:
	Heap-buffer-overflow in DecodeImage".

	* PerlMagick/t/wmf/read.t: Update WMF reference images.  Relax
	test requirements for ski.wmf.

	* locale/C.mgk: Correct error message associated with
	"UnsupportedNumberOfRows".  Patch was submitted by Thorsten
	Alteholz via private email on 2020-02-05.

2020-02-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/topol.c: Include magick/magick_endian.h.

2020-02-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick, coders, wand: Added copious casts to avoid possible
	integer overflows in the Microsoft Windows 64-bit build, where
	sizeof(long) < sizeof(size_t).

2020-01-26  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.h ("PrimitiveInfo"): Change PrimitiveInfo
	coordinates from type 'unsigned long' to 'size_t'.

2020-01-24  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/gradient.c (GradientImage): Warnings reduction, plus note
	about incorrect diagonal gradients math.

2020-01-20  Fojtik Jaroslav  <JaFojtik@seznam.cz>

	* VisualMagick\configure\configure.cpp Option /arch:SSE2 is
	available only for 32 bit build.

2020-01-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pcd.c (DecodeImage): Assure that pcd_length gets
	initialized with something.

	* Magick++/lib/Options.cpp (strokeDashArray): Add needless check
	for _drawInfo->dash_pattern null in order to make static analysis
	happy.

	* magick/render.c (DestroyPolygonInfo): Make sure to not
	dereference a null edges pointer.

	* coders/pdb.c (WritePDBImage): Make sure that null comment value
	is not dereferenced.

	* coders/vid.c (ReadVIDImage): Make sure that
	ThrowVIDReaderException does not dereference a null pointer.

	* magick/quantize.c (ClassifyImageColors): Fix error handling so a
	null pointer won't be consumed after a memory allocation failure.
	Changed the location of some variable declarations and added some
	comments.

2020-01-18  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/caption.c (ReadCAPTIONImage): Assure that metrics are
	initialized.

	* magick/pixel_cache.c (DestroyThreadViewSet): Check if views
	pointer is not null before destroying views.

	* coders/xpm.c (ReadXPMImage): Properly detect the case where the
	XPM colormap is not fully initialized.

	* coders/pict.c (DecodeImage): Fix heap buffer over-reads. Fixes
	oss-fuzz issue 20053 "graphicsmagick:coder_PICT_fuzzer:
	Heap-buffer-overflow in ExpandBuffer" and oss-fuzz issue 20048
	"graphicsmagick:coder_PICT_fuzzer: Heap-buffer-overflow in
	DecodeImage".  Both of these oss-fuzz issues appeared due to
	recent changes since the last release.

	* coders/meta.c (WriteMETAImage): Assure that 'iptc_offset' is
	initialized and valid.

	* coders/jpeg.c (ReadJPEGImage): Assure that evaluating the
	embedded profile length does not suffer from undefined behavior.

2020-01-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/render.c (DrawImage): Add more MVG parser validations.

2020-01-11  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/histogram.c (WriteHISTOGRAMImage): Histogram coder was
	relying on the previously removed '@' file inclusion feature to
	insert the histogram comment text.  Write a PseudoClass MIFF image
	with RLE compression.  Fixes SourceForge issue #622 "Histogram
	produces incorrect color table attribute ".

	* magick/pixel_cache.c (ModifyCache): Re-open the pixel cache if
	the cache rows/columns do not match the owning image rows/columns.

	* magick/transform.c (TransformImage): TransformImage now returns
	a MagickPassFail return status value rather than void.

	* coders/pict.c (ReadPICTImage): Fix some over-strict validations
	which were preventing some PICT files which were previously read
	successfully from being accepted. Fix problems which occurred when
	the clipping rectangle changed the image size. Improve reading
	embedded JPEG blobs.  Now successfully reads all raster PICT files
	I have available.

2020-01-08  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/pict.c (ReadPICTImage): Be more strict about PICT
	rectangle by treating rectangle dimensions as if they are a 16-bit
	signed type and not allowing negative values.  Avoid GCC warnings
	which sprung up similar to "warning: comparison is always false
	due to limited range of data type".

2020-01-05  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/sfw.c (ReadSFWImage): Restore a DestroyImage() statement
	which was accidentally deleted by recent edits.  Fixes oss-fuzz
	"Issue 19819 in oss-fuzz: graphicsmagick:coder_SFW_fuzzer:
	Indirect-leak in AllocateImage".

	* coders/png.c (WriteOneJNGImage): Detect when JPEG encoder has
	failed, and throw exception.  Fix image dimension limit
	validations.  Stop discarding exception report.  Fixes SourceForge
	bug #621 "Assertion in WriteBlob at magick/blob.c:4937" which was
	reported by Suhwan Song.

	* coders/pict.c (WritePICTImage): Eliminating small buffer overrun
	when run-length encoding pixels.  Fixes SourceForge bug #620
	"heap-buffer-overflow in EncodeImage at coders/pict.c:1114" which
	was reported by Suhwan Song.

	* coders/logo.c (ReadLOGOImage): PATTERN error handling was
	incomplete.  Add appropriate error handling.
	(ReadLOGOImage): Switch to using ConstituteTextureImage() rather
	than TextureImage() since it is more appropriate for this purpose.
	(ReadLOGOImage): Oops!  Accidental change of behavior. When size
	is not supplied, simply return the pattern image.

2020-01-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/*.c (ReadFOOImage): Stop image timer just before
	returning from reader so that reported timings are correct when
	used in the future.

2020-01-03  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* magick/timer.c (StartTimer): Expose previously existing
	StartTimer() function.
	(StopTimer): Expose previously existing StartTimer() function.

	* magick/constitute.c (WriteImage): Don't over-write time-stamp
	when output is to INFO format.

2020-01-03  Fojtik Jaroslav  <JaFojtik@seznam.cz>

	* VisualMagick\configure\configure.exe: Should not depend on mfcr90.dll.
	It is too bad when end user cannot run this tool because of missing DLL.

	* VisualMagick\configure\configure.cpp Make speed optimisation as default
	option.

	* VisualMagick\configure\configure.vcproj Give different filename to debug
	build to avoid accidental committing debug build to repository.

2020-01-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

	* coders/dpx.c (GenerateDPXTimeStamp): Use reentrant localtime_r()
	function if it is available.

	* magick/log.c (LogMagickEventList): Use reentrant
	localtime_r() function if it is available.

	* coders/cineon.c (GenerateCineonTimeStamp): Use reentrant
	localtime_r() function if it is available.

	* coders/mat.c (WriteMATLABImage): Use reentrant localtime_r()
	function if it is available.

	* coders/pdf.c (WritePDFImage): Use reentrant localtime_r()
	function if it is available.

	* coders/ps.c (WritePSImage): Use reentrant ctime_r() function
	if it is available.

	* coders/ps2.c (WritePS2Image): Use reentrant ctime_r() function
	if it is available.

	* coders/ps3.c (WritePS3Image): Use reentrant ctime_r() function
	if it is available.

	* configure.ac: Test for getpwnam_r().

	* magick/utility.c (ExpandFilename): Use reentrant getpwnam_r()
	function if it is available.

	* magick/magick.c (InitializeMagickSignalHandlers): Use the normal
	termination signal handler for SIGXCPU and SIGXFSZ so that ulimit
	or setrlimit(2) may be used to apply CPU (RLIMIT_CPU) and output
	file size (RLIMIT_FSIZE) limits with the normal cleanup, and
	without dumping core.  Note that any output files currently being
	written may be truncated and files being written by external
	programs (e.g. Ghostscript) might be left behind unless they are
	to a temporary file assigned by GraphicsMagick.

	* coders/xpm.c (ReadXPMImage): Promote a color-lookup
	warning to an error.

	* coders/xc.c (ReadXCImage): Promote a color-lookup
	warning to an error.

	* coders/null.c (ReadNULLImage): Promote a color-lookup
	warning to an error.

	* Makefile.am: Rotate ChangeLogs for the new year.

	* coders/gradient.c (ReadGRADIENTImage): Promote a color-lookup
	warning to an error.