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The function RRotateImage contains code to handle efficiently the 4 simple angles 0, 90, 180 and 270 degrees, which makes it a long function. This patch separate the code for the different cases into dedicated functions so the main function's code ends up being simple (aka: easier to understand/review/maintain). As a side effect, the function for the 180 degree function is not static because it can be reused to flip an image both horizontally and vertically. Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
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.