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Version 4.1.6 ============= Brown paper bag release. Fix a problem with header inclusion that could prevent the library from building on some platforms. Version 4.1.5 ============= This version has some important fixes for segfaults when working with corrupt files. All users are strongly encouraged to upgrade. Code Fixes ---------- * Fix segfault in utilities due to referencing ColorMaps in GifFiles that had no ColorMap present. * Fix gif2x11 to work on 24 bit displays. * Fix for giftext segfault when the GifFile does not store a global colormap. * Checks to fail gracefully when an image contains improper LZ codes. * Close file handles on failure in DGifOpenFileHandle() * Checks to operate on files in binary mode on WIN32 as well as MSDOS. Building -------- * Add checks to make building on Win32 easier. * Allow turning off gl_s, rle, and X11 support from the configure command line. * Fix for finding a 32 bit integer type on some platforms. * Only enable -Wall if we're using gcc. Version 4.1.4 ============= This version fixes some bugs with deallocating ColorMaps. Fix building on several platforms. Fix x86_64 builds to not hang the encoder. * Fix several areas in decoding where we removed a ColorMap from our GifFile but didn't set the pointer to NULL. This could lead to double free's of the ColorMap. * Fix a bug in dev2gif.c where we redefined some gl types incorrectly. * Fix a bug in the gif LZW encoder that was triggered on modern 64 bit platforms. * Fix building on Windows. Note -- there has been one API changing event for Windows (renaming DrawText to DrawGifText.) This should have conflicted with Windows API and therefore caused the builds to fail previously. If you had it working with DrawText before, apologies, you'll need to change to DrawGifText in your code. This only affects Windows. * Add support for building on The Game Boy Advance. Note: Due to the GBA's limited memory, the API for the GBA uses short's in many places where the other platforms use ints. This shouldn't affect anyone unless you've been able to get an older version of the code to run on GBA and want to start using this version instead. A recompile of your dependent code will be necessary in this case. Version 4.1.3 ============= This version fixes some bugs in the Extension writing code in EGifPutExtensionFirst, Next, and Last. Using these functions, it is possible to output extensions that contain multiple subblocks. Additionally, library code has been updated to use these functions, making it safe to output long Comments, and multi-block extensions read in from another file. * giflib is now hosted on sourceforge with libungif: http://sourceforge.net/projects/libungif * Make the EGifPutExtension{First,Next,Last} family of functions use WRITE so user defined WRITE methods will output them correctly. * Modify EGifSpew and EGifPutComment to use EGifPutExtension{First,Next,Last} so we won't output broken GIFs when dealing with GIFs with multiple subblocks. * More -Wall fixes revealed while testing on Solaris and FreeBSD. * Updated the gif_lib.html documentation to not use EGifPutExtension when dealing with multiple subblocks. Use EGifPutExtension{First,Next,Last} instead. * Some Windows code from the old CVS repository now available in the windows subdirectory. I don't have a Windows environment to test and maintain this but maybe someone out there will find it useful. Caveat hacker. Version 4.1.2 =============== * Numerous bug fixes from people on the old libungif mailing list. * GIF_ERROR and GIF_MESSAGE are on the deprecation list as they are also utility helper functions rather than essential to the functioning of the library. * Complete deprecation list is now in the README file * Audited the sources with gcc -Wall. Everything detectable has now been fixed. * Ran the library code through indent. Version 4.1.1 ============= * Merge in many bug fixes that were sent in while I was hiking the Appalachian Trail. * The qprintf methods of the library are now deprecated. Do not use GifQuietPrint or GifQprintf. These should have been pushed out into the utility helper library instead of sitting around in the library proper at the same time as the getarg functions were moved out. Getting rid of these will let us get rid of our dependence on stdarg.h/varargs.h (Which a Gif reading library has no business requiring.) Version 4.1.0 ============ * Several minor memory leaks in error conditions have been plugged. * New Function EGifOpen(void *userData, OutputFunc writeFunc) allows user specified gif writing functions. * Old copyright notices in a few source files have been updated. All library copyrights should now reflect the copyright notice in the COPYING file. Version 4.0.0 -- giflib ======================= This version of the giflib library merges Eric Raymond's giflib-3.0 release with the libungif-4.0 release to give people a binary compatible choice between the two libraries and gives me the chance to add bugfixes to giflib that have been incorporated in libungif. PLEASE READ THE FILE PATENT_PROBLEMS BEFORE USING THIS LIBRARY! Version 4.0.0 ============= Major fixes have been made to the code that handles Extensions. Unfortunately, this causes binary incompatibility with giflib-3.0 and libungif-3.x. However, the API is still intact. I am, however, deprecating the use of saveImage[x].Function. Use saveImage[x].ExtensionBlocks[y].Function instead. Version 3.1.1 ============= The following bugs which caused SegFaults have been fixed: * When reading gif files with extensions, DGifSlurp would violate memory. * When closing a gif that had a local colormap, DGifCloseFile would attempt to free the colormap twice. * Fix a potential memory leak in DGifSlurp. The following enhancements have been made: * New function DGifOpen to allow specifying a user definable gif reading function. Version 3.1.0 ============= * Add a new function: GifFileType *DGifOpen(void * userData, InputFunc readFunc) to read the gif image from a user defined input function. * A few bugfixes. Version 3.0 =========== Changes from Eric Raymond's libgif: * A new gif encoder that makes uncompressed gifs rather than standard, LZW-compressed gifs. This is actually the major motivating factor behind libungif; to provide third-party distributors a means to provide a gif library without the patented LZW encoder. * A new configure script to make compilation of the library on multiple platforms easier. The package should now build shared libraries on all platforms supported by GNU libtool. * Removed the getarg functions from libgif. These were not part of the public API and only used by the tools in the utils directory so I separated them from the rest of the library. * Fixed a few bugs in the tools in the utils directory. ======== Changes predating libungif 3.0 (news in the original libgif, in other words.) is in ONEWS
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