(Merges master Change Ib38a019b + Change I50f55004) Change-Id: I2cbb63f0f20cdd2652b6b64ae0dee4343b952973
The ETC1 texture format is commonly supported by OpenGL ES 2.0-capable GPUs. For historical reasons ETC1 texture files have the default extension .PKM This tool relies on the libETC1 library to compress and decompress the image data.