2021-02-28  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * configure.ac: Add tests for Jasper jp2_decode(), jpc_decode(),
        and pgx_decode().

        * coders/jp2.c (ReadJP2Image): Call jp2_decode(), jpc_decode(), or
        pgx_decode(), directly. Using jas_image_decode() makes us subject
        to Jasper's own format determination, which may include file
        formats we don't want to support via Jasper.

        * fuzzing/oss-fuzz-build.sh: Disable support for Jasper codecs we
        don't want or need.

2021-02-27  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/msl.c (MSLStartElement): Fix assertion in TranslateText()
        when there are no attributes available.  Addresses oss-fuzz 31307
        "graphicsmagick:coder_MSL_fuzzer: ASSERT: image != (Image *)
        NULL".

        * coders/svg.c (ProcessStyleClassDefs): Fix memory leak upon
        malformed class name list.  Addresses oss-fuzz 31234
        "graphicsmagick:coder_SVG_fuzzer: Direct-leak in MagickMalloc".
        (ProcessStyleClassDefs): Fix non-terminal loop and huge memory
        allocation caused by self-referential list.  Not sure if
        implementation is as intended, but it does not crash. Addresses
        oss-fuzz 31391 "graphicsmagick:coder_SVG_fuzzer: Out-of-memory in
        coder_SVG_fuzzer".
        (SVGReference): Fix memory leak when parser node is null.
        Addresses oss-fuzz 31286 "graphicsmagick:coder_SVGZ_fuzzer:
        Direct-leak in xmlNewReference".

2021-02-25  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/msl.c (MSLCDataBlock): Fix leak of value from
        xmlNewCDataBlock().  Addresses oss-fuzz 31400
        "graphicsmagick:coder_MSL_fuzzer: Direct-leak in
        xmlNewCDataBlock".

2021-02-22  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/svg.c (ProcessStyleClassDefs): Fix non-terminal loop
        caused by a self-referential list which results in huge memory
        usage.  Addresses oss-fuzz 31238 "graphicsmagick:coder_SVG_fuzzer:
        Out-of-memory in coder_SVG_fuzzer".

2021-02-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/svg.c (SVGStartElement): Reject impossibly small bounds
        and view_box width or height.  Addresses oss-fuzz 31224
        "graphicsmagick:coder_SVG_fuzzer: Divide-by-zero in
        SVGStartElement".

        * coders/msl.c (MSLPushImage): Only clone attributes if not null.
        Should address oss-fuzz 31205 "graphicsmagick:coder_MSL_fuzzer:
        ASSERT: image != (Image *) NULL".

        * coders/jp2.c (ReadJP2Image): Validate that actual file header
        does appear to be a supported format regardless of 'magick' being
        forced.  Jasper appears to dispatch to other libraries if it
        detects a known format it supports and then the program exits if
        there is a problem.  Fixes oss-fuzz 31200
        "graphicsmagick:coder_JPC_fuzzer: Unexpected-exit in error_exit".

2021-02-20  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * magick/nt_base.c (NTGhostscriptFind,NTGhostscriptGetString):
        Handle Ghostscript point versions added after 9.52.  Fixes
        SourceForge issue #636 'Failed to find Ghostscript' with
        Ghostscript version 9.53.0+.

        * fuzzing/oss-fuzz-build.sh: Patch by Paul Kehrer to incorporate
        Jasper and libxml2 into the oss-fuzz build.

2021-02-14  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * VisualMagick/All/All.vcproj.in: Fixes by sourcer42
        <sourcer42@users.sourceforge.net> for the problem that Visual
        Studio is not able to load the All project if the project supports
        the x64 target.

2021-02-12  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * www/Hg.rst: Document new redundant Mercurial server at OSDN,
        "https://hg.osdn.net/view/graphicsmagick/GM".

2021-02-07  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * Add explicit cast to float where implicit casts to float from
        double were occurring.

        * magick/utility.c (MagickDoubleToLong): Guard against LONG_MAX
        not directly representable as a double.

2021-02-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * magick/utility.c (TranslateTextEx): If image resolution is
        impossibly small, then report the default resolution of 72 DPI, or
        the equivalent in centimeters if units is in
        pixels-per-centimeter.  Addresses SourceForge bug #396 "dpi not
        retrived (no default value)".  I do have some misgivings about
        this solution since it is lying about the actual value.  Not all
        usages of raster images have an associated physical reality and
        thus resolution is not necessarily relevant.

2021-02-04  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/tiff.c, coders/ps2.c, coders/ps3.c: Libtiff versions
        beyond 20201219 want to use types from stdint.h.

2021-01-31  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * magick/monitor.c (MagickMonitorActive): Need to export this
        function for use by modules.

2021-01-30  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * VisualMagick/bin: Remove hp2xx.exe, mpeg2dec.exe, and
        mpeg2enc.exe.  There is no value to distributing these pre-built
        and flimsy executables in the source package.

        * filters/analyze.c (AnalyzeImage): Add OpenMP speed-ups.

2021-01-29  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * filters/analyze.c (AnalyzeImage): Tidy the structure of the code
        a bit.

        * magick/module.c (ExecuteModuleProcess): Add error reporting for
        the case that the expected symbol is not resolved.

2021-01-23  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * configure.ac: Remove updates to use recommended forms of AC_INIT
        and AM_INIT_AUTOMAKE.  There were too many annoying side-effects
        to daily development from these changes.  Perhaps they will be
        re-visited if solutions for Autotools regeneration issues are
        found.

2021-01-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * magick/render.c (InverseAffineMatrix): Avoid possible division
        by zero or absurdly extreme scaling in InverseAffineMatrix().
        Fixes oss-fuzz 28293 "Divide-by-zero - InverseAffineMatrix".

2021-01-13  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * configure.ac (CONFIG_STATUS_DEPENDENCIES): Regenerate
        configure.ac if ChangeLog or version.sh is updated.

2021-01-10  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/pdf.c (WritePDFImage): Converting a TIF to a PDF set the
        page MediaBox to the TIFF dimensions in pixels while the CropBox
        is set in local context dimensions. The latter is correct, the
        former is not.  Set the MediaBox to the proper dimension in local
        context.  Should be the same in this context.  Patch by Hubert
        Figuiere and retrieved from SourceForge patch #64 "Incorrect
        MediaBox in PDF export".

        * magick/pixel_cache.c: Memory cache implementation of pixel cache
        now uses resource limited memory allocator.  It was previously
        resource limited, but by using the resource allocation APIs
        directly.

2021-01-09  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/tiff.c: Remove unintended double-charging for memory
        resource.  Remove explicit memset where possible.

2021-01-07  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * coders/gif.c (ReadGIFImage): Fix memory leak of global_colormap
        if realloc of memory for comment fails.  Fixes oss-fuzz 29316
        "Direct-leak in MagickMalloc".

        * coders/meta.c (ReadMETAImage): Fix double-free if blob buffer
        was reallocated after being attached to blob.  Fixes oss-fuzz
        29193 "Heap-double-free in MagickFree".

2021-01-06  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * configure.ac: Updates to use recommended forms of AC_INIT and
        AM_INIT_AUTOMAKE.  This was/is painful due to how development
        snapshot versioning is handled.  The version string produced for
        the snapshot version will now contain the snapshot date.  Effort
        has been made to avoid other impacts due to AC_INIT's enforcements
        for how version information is used.

2021-01-02  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * PerlMagick/Magick.xs: Remove GCC warnings which spewed out at
        increased warning levels.

        * magick/magick_types.h.in: Hide definitions not intended for the
        rest of the world under "if defined(MAGICK_IMPLEMENTATION)".

2021-01-01  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>

        * configure.ac: Skip library symbol tests for gdi32 since these
        fail with the MSYS2 w64-i686 compiler and well as i686 Cygwin.
        The failures caused a build regression for i686 MSYS2/Cygwin.

        * Copyright.txt: Copyright year updates and ChangeLog rotation for
        the new year.
