ChangeLog-2007.rst

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2007-12-23 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - VisualMagick/configure/configure.rc: Better positioning of frog, changed original ImageMagick messages.
> - VisualMagick/configure/configure.exe: New build.

2007-12-22 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - magick/command.c: Fix compilability issue for Microsoft Visual Studio 6.

2007-12-16 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - configure.ac: Use some improved tests for POSIX standard types available in Autoconf 2.61. Add support for configuring a magick_uintmax_t type. Added support for configuring a magick_uintptr_t type.

2007-12-01 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/utility.h (MagickSafeMultiplySize_t): New function to perform a safe multiply. A multiplication overflow results in zero. (MagickAllocateMemory): Check for size_t value truncation/overflow and zero size before deciding to allocate memory. Any detected failure results in a NULL pointer being returned. (MagickReallocMemory): Add a type parameter to use in cast in order to avoid C++ portability problem.
> - PerlMagick/Magick.xs: Eliminate use of deprecated methods.
> - magick/memory.c (MagickAcquireMemory): New function to allocate memory. (MagickAcquireMemoryArray): New function to allocate memory for an array of objects. (MagickCloneMemory): New function to intelligently copy memory. (MagickReallocateMemory): New function to re-allocate memory. (MagickReleaseMemory): New function to deallocate memory.
> - magick/deprecate.c (AcquireMemory): Deprecated in favor of new function MagickAcquireMemory(). (CloneMemory): Deprecated in favor of new function MagickCloneMemory(). (LiberateMemory): Deprecated in favor of new function MagickReleaseMemory(). (ReacquireMemory): Deprecated in favor of new function MagickReallocateMemory().

2007-11-24 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/constitute.c (ReadImage): Log colorspace of returned image. (WriteImage): Log colorspace of image to be written.
> - coders/{miff.c,mpc.c,tga.c,tiff.c}: Use MagickBoolToString().
> - magick/{constitute.c,xwindow.c}: Use MagickBoolToString().
> - magick/image.h (MagickBoolToString): New macro to convert truth value to a constant "True" or "False" string.

2007-11-09 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/image.c (IsImagesEqual): Allow comparing images if the colorspace enumeration is different but the images are both an RGB type.

2007-11-07 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/command.c: Add support for -monitor option to animate, display, and import.
> - coders/fpx.c (WriteFPXImage): Fix compilation problem.
> - coders/dpx.c (TentUpsampleChroma): Fix access beyond array. Use integer calculations where possible.

2007-11-07 Andy Armstrong <andy@hexten.net>

> - PerlMagick/t/setattribute.t: Fix for typo which breaks Test::Harness 3.00.

2007-10-20 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - mat.c: Attempt to read logic type modification
>     as monochrome image.

2007-10-07 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.c (ReadBlob?SBFoo): Return 0 on EOF conditions rather than a magic value concocted using ~0. The magic value was very sensitive to the size/range of the type used to pass and store it, leading to increased possibility of error. There was also concern that sometimes a successfully read value may match the magic value. Added documentation that EOFBlob() may be used to determine that the blob is in EOF state.
> - coders/pix.c (ReadPIXImage): Avoid reliance on a particular magic value being returned from ReadBlobMSBShort on EOF.
> - coders/avs.c (ReadAVSImage): Avoid reliance on a particular magic value being returned from ReadBlobMSBLong() on EOF.

2007-10-07 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - wpg.c: Monochrome images are not using palette - palette is discarded in this case.

2007-10-06 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.h: Blob I/O APIs now use sized types so that passed and returned data values are a specific size rather than architecture dependent.
> - PerlMagick/t/read.t: Added read test for unsigned 32-bit LSB MAT format.

2007-10-01 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dib.c (ReadDIBImage): Use appropriate sized cast for DIB width and height values. Validate width and height values.
> - coders/bmp.c (ReadBMPImage): Use appropriate sized cast for BMP width and height values.
> - magick/colorspace.c (RGBTransformImage): Use a better rounding algorithm when converting to HSL/HWB colorspaces.
> - magick/gem.c (TransformHSL): Avoid GCC opimization bug on Opteron which caused wrong results. Ensure that returned values fall within bounds 0.0 to 1.0. (TransformHWB): Avoid GCC opimization bug on Opteron which caused wrong results. Ensure that returned values fall within bounds 0.0 to 1.0.
> - PerlMagick/t/ttf/read.t: Relax strictness quite a bit for TTF read tests in order to allow somewhat different FreeType output.

2007-09-30 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/colorspace.c (RGBTransformImage): Add missing break statement. HWB colorspace was used rather than HSL. (TransformRGBImage): Add missing break statement. HWB colorspace was used rather than HSL.

2007-09-19 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/sun.c (ReadSUNImage): Properly report SUN image depth.

2007-09-28 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c Ability to write multiple images to one MAT file. Fixed bug - incorrect matrix size for gray image.

2007-09-18 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/shear.c (IntegralRotateImage): Rotation by 270 degrees was wrong. It was flipped from what it should be.

2007-09-17 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/command.c (CommandProgressMonitor): Remove any preceding whitespace in the task descriptions so that we don't need to update all of the task descriptions right away.
> - magick/colorspace.c (RGBTransformImage): Improve progress monitor message. (TransformRGBImage): Improve progress monitor message.
> - coders/miff.c (ReadMIFFImage): Add read progress monitor support.

2007-09-15 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/pdf.c (WritePDFImage): Fix writing PDF with CCITT compression. Addresses SourceForge bug 1209177 "TIFF to PDF CCITT compression fails".

2007-09-14 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c Ability to read multiple images from one MAT file. changed ExtendedSignedIntegralType to magick_off_t that better corresponds to file positioning.

2007-09-14 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/pdf.c (WritePDFImage): Use ThumbnailImage() to create thumbnail.
> - coders/preview.c (WritePreviewImage): Use ThumbnailImage() to create thumbnail.
> - coders/xpm.c (WritePICONImage): Use ThumbnailImage() to create thumbnail.

2007-09-14 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c Several warnings has been suppressed.

2007-09-13 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/tiff.c (WriteTIFFImage): Fix writing to pipes and other non-seekable output destinations.
> - magick/blob.c (WriteBlobFile): New function to copy a disk file to a blob stream.
> - magick/profile.c (ProfileImage): Fix removing profiles.

2007-09-12 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/png.c (png_flush_data): Don't invoke SyncBlob() since it does far more than force data to the output file. (ReadPNGImage): Make sure that PNG read errors are reported to the user.
> - coders/jpeg.c (TerminateDestination): Don't invoke SyncBlob() since it does far more than force data to the output file.
> - magick/blob.c (SyncBlob): Remove from public interface.

2007-09-12 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c Allowed to read signed integer matrices. Fixed loop break.

2007-09-11 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/tiff.c (WriteTIFFImage): Ensure that selected photometric most closely matches the user's expectation. Remove compression if requested compression type is not compatible with the selected photometric.

2007-09-09 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/shear.c (IntegralRotateImage): Use tiles to speed up rotation by 90 or 270 degrees.

2007-09-07 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c The flop image has been eliminated in a reader. Code has been shrinked a little bit.

2007-09-06 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/image.c (GetImageCharacteristics): Add progress monitor support.
> - magick/color.c (IsMonochromeImage): Add progress monitor support. (IsGrayImage): Add progress monitor support. (IsOpaqueImage): Add progress monitor support.
> - coders/dpx.c (ReadDPXImage): Added progress indication.
> - coders/cineon.c (WriteCINEONImage): Added progress indication.
> - magick/command.c : Added a -monitor command option for composite, convert, identify, mogrify, and montage in order to enable a simple progress indicator.

2007-09-06 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c Write native gray MAT data when gray image is detected.

2007-09-05 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/utility.c (GetExecutionPath): Add support for Apple OS-X, Linux, and FreeBSD.

2007-09-04 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - configure.ac: For Windows MinGW-based build, find Ghostscript fonts installed under C:/Program Files/.
> - VisualMagick/bin/delegates.mgk: Adjust quoting to Ghostscript arguments so that Ghostscript DLL is passed correct commands.
> - config/delegates.mgk.in: Adjust quoting to Ghostscript arguments so that Ghostscript DLL is passed correct commands.
> - configure.ac: Provide defaults for GSColorAlphaDevice and GSGrayDevice.
> - magick/nt_base.c (NTGhostscriptGetString): Support "GPL Ghostscript".

2007-09-03 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/ps.c (WritePSImage): Improved Postscript writer performance.

2007-09-02 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/profile.c (AllocateImageProfileIterator): New function to allocate an image profile iterator. (DeallocateImageProfileIterator): New function to deallocate an image profile iterator. (NextImageProfile): New function to advance the image profile iterator to the next profile.
> - magick/image.h (Image): Profiles are now stored in a generic container. As planned years ago, the color_profile, iptc_profile, generic_profile, and generic_profiles members are now removed.

2007-09-01 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/bmp.c Ability to read true color bitmap with invalid palette size like other readers do.

2007-08-31 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/pixel_cache.c (ClonePixelCacheMethods): Remove DLL export. (DestroyCacheInfo): Remove DLL export. (GetCacheInfo): Remove DLL export. (ReferenceCache): Remove DLL export.

2007-08-30 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/image.c (SetImageType): More tweaks to obtain the desired behavior when converting to a bilevel image.
> - coders/tiff.c (WriteTIFFImage): Logic which decided the output subformat to write was too convoluted to understand, and in fact palette images were not be written sometimes when they should be (bug added on 2007-08-19). Deleted the convoluted code and replaced with a different design which should be more correct and flexible. (ReadTIFFImage): Decided to read bilevel TIFF using a colormap since there are significant internal advantages to doing so. However, the writer is carefully designed to output normal bilevel TIFF so this should not annoy TIFF users.
> - magick/constitute.c (ImportImagePixelArea): Re-wrote grayscale pseudoclass import to be more efficient and more tidy.

2007-08-30 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/art.c Added ART writer

2007-08-29 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.c (ReadBlobLSBFloat): Promoted to be a public interface (was in mat.c). (ReadBlobMSBFloat):Promoted to be a public interface (was in mat.c).

2007-08-29 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/art.c InsertRow has been replaced by ImportImagePixelArea

2007-08-28 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/pnm.c (ReadPNMImage): PNM "raw" formats are now read using ImportImagePixelArea()
> - magick/constitute.c (ExportImagePixelArea): Added an optional export_info parameter for returning information back to the user. (ImportImagePixelArea): Added an optional import_info parameter for returning information back to the user.
> - coders/jbig.c (ReadJBIGImage): Use ImportImagePixelArea(). (WriteJBIGImage): Use ExportImagePixelArea();
> - coders/tiff.c (WriteTIFFImage): Make compression logic a bit more tidy.
> - coders/pcx.c (WritePCXImage): Use GetImageCharacteristics().
> - coders/pcl.c (WritePCLImage): Use GetImageCharacteristics().
> - coders/dib.c (WriteDIBImage): Use GetImageCharacteristics().
> - coders/xpm.c (WritePICONImage): Use GetImageCharacteristics().
> - coders/viff.c (WriteVIFFImage): Use GetImageCharacteristics().
> - coders/tga.c (WriteTGAImage): Use GetImageCharacteristics().
> - coders/sgi.c (WriteSGIImage): Use GetImageCharacteristics().
> - coders/ps2.c (WritePS2Image): Use GetImageCharacteristics().
> - coders/pdf.c (WritePDFImage): Use GetImageCharacteristics().
> - coders/palm.c (WritePALMImage): Use GetImageCharacteristics().
> - coders/ps.c (WritePSImage): Use GetImageCharacteristics().
> - coders/jp2.c (WriteJP2Image): Use GetImageCharacteristics().
> - coders/jpeg.c (WriteJPEGImage): Use GetImageCharacteristics().
> - PerlMagick/t/read.t: Added read test for LSB float MAT.

2007-08-26 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c: MAT reader now extensively uses ImportImagePixelArea.

2007-08-26 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - tests/Makefile.am: Add rwblob and rwfile tests for MAT format.
> - magick/constitute.c: Re-wrote Export/Import Float/Double macros because they did not actually work right, and to eliminate the performance penalty for native order.

2007-08-25 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - PerlMagick/Magick.xs: Add support for "native" endian parameter in PerlMagick.
> - magick/command.c: Utilities now understand "native" as an argument to -endian.
> - magick/image.h (enum EndianType): Added NativeEndian enum value.
> - configure.ac: Test libtiff for TIFFSwabArrayOfTriples().
> - magick/constitute.c (ExportImagePixelArea): Support export in little, big, and native endian. (ImportImagePixelArea): Support import in little, big, and native endian.

2007-08-23 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c (WriteMATLABImage): MAT writer uses ExportImagePixelArea() now. Fix issues noticed by valgrind.

2007-08-21 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/pnm.c (WritePNMImage): Use -quality 0 rather than -compress none to select the PNM ASCII subformats. This change is made based on the principle of least surprise.
> - magick/constitute.c (ExportImagePixelArea): Add a GrayQuantum implementation for exporting from two color PsuedoClass.
> - coders/pnm.c (WritePNMImage): Use GetImageCharacteristics() and ExportImagePixelArea() in implementation.

2007-08-20 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/constitute.c (ExportImagePixelArea): Performance improvements. (ImportImagePixelArea): Performance improvements.

2007-08-19 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/command.c (IdentifyImageCommand): If "%r" is present in -format specifier, then read whole image.
> - magick/utility.c (TranslateTextEx): Undocumented "%r" substitution now returns a string based on GetImageType() rather than a concatentation of image class and "Matte".
> - coders/tiff.c (WriteTIFFImage): Use GetImageCharacteristics().
> - magick/image.c (GetImageCharacteristics): New function to evaluate the basic characteristics of the image. (GetImageType): Use GetImageCharacteristics().

2007-08-17 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dpx.c (RegisterDPXImage): Remove extra newline in usage note.
> - coders/fax.c (RegisterFAXImage): Fix note to reflect that the output from this coder is *not* a TIFF subformat as was previously claimed.
> - coders/tiff.c (WriteTIFFImage): Output G3 TIFF FAX images as per the TIFF Class F specification.

2007-08-16 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/{api.h, studio.h}: Strip out legacy MacOS 9 and VMS "support".
> - magick/{nt_base.c, unix_port.c} (MagickGetMMUPageSize): New function to obtain the VM page size.
> - magick/pixel_cache.c (PersistCache): Fix a terrible memory leak when reading MPC files. Added Cache reference-count logging.

2007-08-12 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/command.c (BenchMarkSubCommand): Added a new benchmark GraphicsMagick command which can be used to perform benchmarking on any other GraphicsMagick command.

2007-08-11 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c (ReadMATImage): Support image is_grayscale flag. Add some coder logging.

2007-08-11 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/{paint.c, render.c, annotate.c}: Use AlphaComposite() from alpha_composite.h.
> - magick/alpha_composite.h (BlendComposite): Move inline BlendComposite() to a header file since it is used in multiple places.
> - magick/{shear.c, image.c}: Use BlendComposite() from alpha_composite.h.
> - magick/image.c (SetImageDepth): Don't bother to test current depth in advance. Preserve is_monochrome flag. Encapsulate bit-reduction algorithm in a macro. Be a bit smarter with PseudoClass images. (SyncImage): Preserve is_monochrome flag. Improve performance when image does not have an opacity channel.
> - PerlMagick/t/read.t: Allow some error when reading double MAT.

2007-08-08 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - PerlMagick/t/read.t: Update MAT read tests according to instructions from Fojtik Jaroslav.

2007-08-06 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/wpg.c (ReadWPGImage): Support WPG files which use XOR operator.

2007-08-06 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.c (ReadBlobLSBdouble): Migrate from mat.c. (ReadBlobMSBdouble): Migrate from mat.c.

2007-08-05 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/constitute.c (ExportImagePixelArea): Add optimized support for 2 and 16 color PseudoClass. (ImportImagePixelArea): Add optimized support for 2 and 16 color PseudoClass.
> - magick/constitute.c (ImportImagePixelArea): Add option to output pad bytes at end of pixel data. Added optimized implementation of IndexQuantum for bilevel images.
> - coders/tiff.c (WriteTIFFImage): Be smarter when writing gray Palette and grayscale TIFF images in order to not waste time.
> - coders/bmp.c (ReadBMPImage): Use ImportImagePixelArea() when reading and writing bilevel and colormapped images. (WriteBMPImage): Use ExportImagePixelArea() when writing bilevel images.
> - magick/version.h.in: Added wrapping for copyright line to a reasonable width.
> - AUTHORS: Added Daniel Kobras.
> - magick/command.c (VersionCommand): Added feature support list to -version output.

2007-08-02 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/command.c (AnimateImageCommand): Add support for -type to animate. (DisplayImageCommand): Add support for -type to convert
> - config/delegates.mgk.in, VisualMagick/bin/delegates.mgk: Added gs-gray and gs-color+alpha delegate definitions.
> - coders/{ept.c, pdf.c, ps.c}: Respect a -type Bilevel, Grayscale, TrueColor, or TrueColorMatte request by passing appropriate options to Ghostscript for rendering..

2007-07-31 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/constitute.c (ImportImagePixelArea): Improved read speed for bilevel gray image. Many thanks to Mark Mitchell for inspiration and ideas.
> - coders/caption.c (ReadCAPTIONImage): Eliminate use of strcpy().
> - coders/pnm.c (ReadPNMImage): Add logging as well as support for is_monochrome and is_grayscale flags.
> - magick/color.h (IsMonochrome): Add parenthesis so macro is more robust.

2007-07-29 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/html.c (WriteHTMLImage): Eliminate use of strncat().
> - coders/locale.c (ReadConfigureFile): Eliminate use of strncat().
> - coders/png.c (ReadOnePNGImage): Eliminate use of strncat().
> - magick/fx.c (ConvolveImage): Eliminate use of strncat().
> - coders/tiff.c (WriteTIFFImage): Eliminate use of strncat().
> - magick/delegate.c (InvokePostscriptDelegate): Eliminate doubled-output when running in verbose mode.

2007-07-28 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/delegate.c (InvokePostscriptDelegate): MagickSpawnVP() requires three parameters.

2007-07-27 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - bzlib: Updated bzip2 to 1.0.4.
> - jbig: Updated jbigkit to 1.6
> - jp2: Updated JasPer to 1.900.1.
> - lcms: Updated lcms to 1.16
> - png: Updated libpng to 1.2.18.

2007-07-24 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/xc.c (ReadXCImage): If ImageInfo type field is set to TrueColorType or TrueColorMatteType type, then return a DirectClass image, otherwise a PseudoClass image is returned as before. From the command line this can be used like: gm convert -size 640x480 -type TrueColor xc:red red.miff. Programs may also use this in order to obtain a DirectClass canvas image to draw on.
> - magick/enhance.c (LevelImage): Fix potential buffer overflow which was added since the 1.1 branch.

2007-07-23 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/delegate.c (UnixShellTextEscape): Don't escape newline character since it performs the opposite of what is desired.

2007-07-23 Daniel Kobras <kobras@debian.org>

> - magick/delegate.c (UnixShellTextEscape): Fix fencepost error
>     when checking whether escaping is safe.

2007-07-23 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - Makefile.am: Retire VMS and MacOS 9 support from package.

2007-07-22 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/{cmyk.c, gray.c, mono.c, rgb.c, uyvy.c, wbmp.c, yuv.c} (ReadFOOImage): Check for EOF while searching for start of image data.
> - tests/Makefile.am: Don't test PTIF format with blob I/O since it is not possible to pass the rwblob test and it is really an output driver rather than a format.
> - libtool: Update to latest CVS libtool.
> - magick/constitute.c (ExportModulo8Quantum): Move Import and Export macros from header file since they are not used anywhere else.
> - coders/dpx.c: Add underscore suffix to macro local variable names in order to avoid conflict with names in code using the macros.

2007-07-21 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - wand/magick_wand.c: Reduce the number of warnings when compiling the Wand library.
> - coders/xwd.c (XWD_OVERFLOW): Eliminate comparison between signed and unsigned.
> - coders/pnm.c (ValidateScalingIndex): Eliminate check to see if unsigned type is less than zero.
> - magick/log.c (LogMagickEvent): Even though log file name comes from a controlled source (log.mgk), perform safe numeric substitution on it.
> - coders/xwd.c (ReadXWDImage): Eliminate conflict between locally defined OVERFLOW macro and similarly named macro under Windows.

2007-07-18 Daniel Kobras <kobras@debian.org>

> - coders/xwd.c (ReadXWDImage): Integer overflow fix (CVE-2007-1797). From Debian patch xwd_integer_overflow_fixes_CVE-2007-1797. (ReadXWDImage): Fix for integer under/overflow. From Debian patch xwd_overflow_fix.
> - coders/wpg.c (ReadWPGImage): WPG segfault fix. From Debian patch wpg_segfault_fix.
> - coders/viff.c (ReadVIFFImage): Verify number of bands prior to using image. From Debian patch viff_heap_corruption_fix.
> - coders/sun.c (ReadSUNImage): Sun segfault fix. From Debian patch sun_segfault_fix.
> - magick/blob.c (ReadBlobStream): Never try to read data beyond EOF in blob streams. Some (but not all) ReadBlob*() methods already implemented similiar checks. Moving it to the central ReadBlobStream() increases robustness and prevents out-of-bounds reads. From Debian readblob_offset_robustness patch.
> - coders/pnm.c (ReadPNMImage): Validate pixel scaling. From Debian pnm_scale_fix patch.
> - coders/pict.c (ReadPixmap): PICT segfault fix. From Debian pict_segfault_fix patch.
> - coders/pcx.c (ReadPCXImage): PCX heap overflow fix. From Debian pcx_heap_overflow_fix patch. (ReadPCXImage): PCX segfault fix. From Debian pcx_segfault_fix.
> - magick/montage.c, PerlMagick/t/montage.t: Do not pass bogus negative values to modulate shadow in montage. Instead, drop a constant grey shadow like current ImageMagick. From Debian montage_shadow_fix patch.
> - coders/png.c (ReadMNGImage): MNG segfault fix. From Debian mng_segfault_fix patch.
> - utilities/miff.4: MIFF man page apropos fix. From Debian miff_apropos_fix patch.
> - coders/icon.c (ReadIconImage): Icon segfault fix. From Debian icon_segfault_fix patch.
> - tests/drawtest.c: Make sure filename strings do not run out of bounds in drawtest. From Debian drawtest_segfault_fix patch.
> - config/delegates.mgk.in: Remove obsolete option -2 when calling dcraw as a delegate. From Debian dcraw_options_fix patch.
> - coders/dcm.c (ReadDCMImage): Fix integer overflow in DCM coder. (CVE-2007-1797). From Debian dcm_overflow_fix patch.
> - coders/bmp.c (ReadBMPImage): Verify file seek success. From Debian bmp_overflow_fix patch.

2007-07-19 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/utility.h (MagickReallocMemory): It seems that realloc() frees the provided memory pointer if the requested size is zero. This was causing MagickReallocMemory() to perform a double-free under error conditions. Inspired by Debian realloc_double_free_fix patch by Daniel Kobras.

2007-07-18 Daniel Kobras <kobras@debian.org>

> - magick/quantize.c (GrayscalePseudoClassImage): Fix computation of memory required for colormap index (colormap_heap_overflow_fix).

2007-07-18 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/miff.c (WriteRunlengthPacket): Converted excessively long macro to a function and hopefully eliminate warnings when using Visual Studio 2005.
> - magick/pixel_cache.c (ClonePixelCache): Eliminate bug when size_t is an unsigned type.

2007-07-15 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/image.c (SetImageInfo): Address security issue noted by CVE-2006-0082 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0082 in which output filenames matching arbitrary printf specifications may cause GraphicsMagick to crash.
> - magick/utility.c (TranslateTextEx): New version of TranslateText which allows copying each attribute via a user-provided callback function.
> - magick/delegate.c (InvokeDelegate): Implement secure delegate execution in POSIX environments in order to avoid injection of arbitrary shell commands via carefully crafted filenames. Fixes Debian Bug 345238 "[CVE-2005-4601] Shell command injection in delegate code (via file names)" http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=345238

2007-07-08 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/forward.h: New header file to support forward type declarations.
> - coders/pnm.c (ReadPNMImage): Fix pixel scaling problem caused by
>     floating point rounding error.

2007-07-07 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/studio.h: Provide pread() and pwrite() prototypes if they are missing.
> - configure.ac: Check for missing pread() and pwrite() prototypes.
> - m4/ac_func_fseeko.m4: Use fixed version of AC_FUNC_FSEEKO.
> - magick/utility.c (SystemCommand): Avoid use of snprintf.

2007-07-06 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.c: Only replace getc_unlocked() and putc__unlocked() for a thread-safe build.
> - magick/studio.h: Always use fseeko() and ftello() if they are available.

2007-07-02 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dpx.c (ReadDPXImage): Avoid using seek() if possible, and don't use at all if the input is not seekable.
> - coders/psd.c (ReadPSDImage): Eliminate memory leak when reading PSD files. Fixes Sourceforge issue 1625477 "Memory leak reading layered PSD Image".

2007-06-29 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/command.c: Fixed -affine command argument validation. Fixes SourceForge issue 1743141 "Affine matrix option parsing".
> - config/magic.mgk: Added detection for BigTIFF.
> - coders/tiff.c: Preliminary work to support BigTIFF.

2007-06-18 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dpx.c: Fix problems encountered when reading and writing from/to pipes or compressed files.

2007-06-17 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dpx.c (ReadDPXImage): Improved the pixel data marshalling in order to obtain better read performance for 10-bit DPX.
> - magick/blob.c (OpenBlob): Added support for MAGICK_MMAP_READ and MAGICK_MMAP_WRITE environment variable options to enable input and output file access using mmap().

2007-06-10 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.c (OpenBlob): Use MAGICK_IOBUF_SIZE to tune the size of the I/O buffer. Sometimes performance is improved by using something other than the current default of 16KB.

2007-06-05 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/miff.c (ReadMIFFImage): Handle case where compression keyword is present but has value of None.

2007-06-03 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/blob.c (OpenBlob): Disable reading input files using memory mapping since it has been learned that some operating systems fail to do read-ahead on network files. Without read-ahead, performance is poor.
> - magick/resource.c (AcquireMagickResource): Map resource limit was not being properly checked due to a typo. The memory limit was being tested instead.
> - coders/tiff.c (ReadTIFFImage): Use libtiff to decode OJPEG compressed files into RGB. Probably requires new OJPEG implementation from Joris Van Damme which is new in libtiff and not yet released. I am not completely sure that this approach is correct yet.

2007-05-23 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/xwindow.c (MagickXGetWindowImage): Set image->depth appropriately.
> - many files: Compiler warnings reduction.

2007-05-13 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/cineon.c (ReadCINEONImage): Alter sample scaling algorithm a bit.
> - tests/rwblob.c, tests/rwfile.c: Allow some slop when testing Cineon format with QuantumDepth=8 since we are currently only supporting 10 bit samples.

2007-05-09 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/jpeg.c (ReadJPEGImage): Fix reading 12-bit grayscale JPEG.

2007-05-06 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/cineon.c (WriteCINEONImage): Re-wrote Cineon writer from scratch. There is no code originating from ImageMagick in this source module any more.

2007-04-30 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/art.c, coders.cut.c, coders/mat.c, coders/wpg.c: Add support for PingImage() so that image identification is fast by default. Also eliminates error message produced by mat.c due to rotating an image which has no pixel cache.

2007-04-09 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/wpg.c (ReadWPGImage): Fix for SourceForge bug id 1431805 "clip art wpg files cause access violation in graphics magick".

2007-04-09 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/pixel_cache.c (ModifyCache): Ensure that the cache nexus is open. Fix for SourceForge bug id 1173713 "segfault in ModifyCache"
> - m4/acx_pthread.m4 (ACX_PTHREAD): Apply fixes necessary to support C++ compiler properly.

2007-04-08 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - magick/GraphicsMagick.pc.in: Fix for SourceForge bug id 1576616 "Fix includedir variable in pkg-config files".
> - magick/pixel_cache.c (GetOnePixel): Fix for SourceForge bug id 1572357 "GetOnePixel definition appears incorrect". It is true that this function is intended for read-only purposes and that the PixelPacket value is returned directly.
> - coders/pdf.c (WritePDFImage): Fix for SourceForge bug id 1510075 "Failed to write PDF with JPEG compression".
> - magick/command.c (MogrifyImageCommand): Properly bubble up errors and terminate further mogrify processing immediately. This in response to SourceForge bug id 1391421 "problem doing resize on 273x1 JPEG".
> - magick/magick.c (InitializeMagickClientPathAndName): Fix for SourceForge bug id 1315109 "segfault in InitializeMagick(NULL)".
> - wand/magick_wand.c (MagickGetQuantumDepth): Fix for SourceForge bug id 1353744 "MagickGetQuantumDepth doesn't work".
> - PerlMagick/t/read.t: Added a test for WPG v1.

2007-04-07 Fojtik Jaroslav <JaFojtik@seznam.cz>

> - coders/mat.c: Read Matlab files in both big and little endian format.

2007-03-28 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dpx.c (WriteDPXImage): Set DPX reference high quantity to 2.047 rather than 2.048 since zero is assumed to occupy one count and 2.047 seems to be the convention even though the DPX specification says the default is 2.048. Technicolor uses 2.047.
> - m4/acx_pthread.m4: Update version of ACX_PTHREAD macro used.

2007-03-28 Fojtik Jaroslav <fojtik@humusoft.cz>

> - coders/wpg.c: Support CTM translation in WPG reader.

2007-03-08 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - coders/dpx.c: Store 10-bit Luma samples in the filled 32-bit storage word starting with the datum in the least significant position.

2007-02-10 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

> - Updated autoconf to version 2.61.

2007-02-10 Daniel Kobras <kobras@debian.org>

> - coders/palm.c: (ReadPALMImage) Do not implicitly call ReadBlobByte() twice in Min() macro. Patch thanks to Vladimir Nadvornik. This was a regression introduced in patch for CVE-2006-5456. (CVE-2007-0770)

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