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GraphicsMagick

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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>

> - VisualMagickconfigureconfigure.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>

> - VisualMagickconfigureconfigure.exe: Should not depend on mfcr90.dll. It is too bad when end user cannot run this tool because of missing DLL.
> - VisualMagickconfigureconfigure.cpp Make speed optimisation as default option.
> - VisualMagickconfigureconfigure.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.