|  | URL: http://www.libpng.org/pub/png/libpng.html | 
|  | Version: 1.6.22rc01 | 
|  | License: libpng license | 
|  | License File: LICENSE, pulled out of png.h | 
|  | Description: png compression/decompression library | 
|  | Local Modifications: | 
|  | (1) Created pnglibconf.h from pnglibconf.h.prebuilt. This | 
|  | is mostly a rename, with Skia-specific settings at the end. | 
|  | The only difference is for pngprefix.h. | 
|  | (2) Included Intel optimizations by running: | 
|  | "patch -i contrib/intel/intel_sse.patch -p1" | 
|  | (3) Removed files unused by Skia | 
|  | (4) Fixed an undefined behavior bug (skbug.com/5390) | 
|  | (5) Add pngprefix.h, so multiple versions of libpng can | 
|  | coexist. |