Author: Yotam Gingold <yotam (strudel) yotamgingold.com> License: Public Domain [CC0](http://creativecommons.org/publicdomain/zero/1.0/) GitHub: https://github.com/yig/yimg YImage: A simple pixel buffer class that can - save and load itself as a PNG (preserving alpha channel) among other formats - set color-plane layout (compile-time) - resize/flip/mirror/greyscale Simply include `YImage.hpp` in your program and compile `YImage.cpp` in it, too. showpng: An example GLUT application using YImage that takes a PNG file as argument and displays it over a horrible green background. If no argument given loads included "sakura.png" file. Clicking inside the window displays a menu of commands. Keys are: - f: flip() - m: mirror() - g: greyscale() - s: save( "output.png" ). - c: captures current window backbuffer into "screen-capture.png" - q: quit Compile either with the one-liner at the top of `showpng.cpp`: `c++ -o showpng showpng.cpp YImage.cpp -I/usr/local/include -L/usr/local/lib -lGL -lGLUT` or use `cmake`: `mkdir build; cd build; cmake ..; make; ./showpng` transparent.html: A basic web page to test the transparency of a PNG named "output.png". Try with the "output.png" generated by pressing 's' in showpng. Version History: - 2006-04-08: initial release - 2007-11-13: Option to save PNG with less compression, but faster. Added methods (same() and same_rgb()) to test if two images are the same. - 2012-01-09: No longer generate warnings about non-string literals being used in fprintf. No longer generate warning about unused return value. Now includes <cstdio> for platforms that need it. Switched OS X libpng include/library paths from fink to macports. - 2015-12-22: Replaced libpng dependency with public domain stb_image* implementations (included). Now many more formats can be loaded (PNG,JPEG,TGA,BMP,PSD,GIF,PIC,PNM) and saved (PNG,BPM,TGA). Added a rescale() function. Switched to cmake.
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