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This patch is implementing a new default Catmull-Rom filter to resize images. Catmull-Rom is a special case of cubic interpolation with B=0 and C=0.5 (in the Mitchell-Netravali formulation). It provides slighlty sharper results than Mitchell with the same performance. Catmull-Rom is a better choice for a window manager as it prioritizes sharpness, making small elements feel crisp.
WindowMaker raster graphics library This library is used to manipulate images and convert them to a format that can be displayed through the X window system. Read the wraster.h header for an idea of what is available This Library is LGPL and Copyright (c) Alfredo K. Kojima <kojima@inf.ufrgs.br> The following environment variables control some parameters: RIMAGE_CACHE <integer> Is the maximum number of images to store in the internal cache. Default is 8 RIMAGE_CACHE_SIZE <integer> Is the size of the biggest image to store in the cache. Default is 4k (64x64) Porting ======= It should be fairly easy to port it to other environments (svgalib, libggi etc), probably only requiring wraster.h, context.c and convert.c to be changed. Note that the X specific code should be disabled in that case, including support for libXpm.