Here you can donwload Scale2x containing an example program about to apply the effect on .png image and a very fast MMX implementation.
|scale2x-3.1.tar.gz||The sources for GNU/Linux, Windows and any other operating system.|
Other implementations can be found in the contrib/ directory.
LicenseYou are allowed to use the Scale2x implementations in your program if it's released with the GPL license, or alternatively under all the following conditions:
- the program is not used in commercial activities.
- the whole source code of the program is released with the binary.
- derivative works of the program are allowed.
Instead, you are free to use the algorithm, but please call the effect "Scale2x".