tree f3ab4517291fd1a8fc6c75d8670ba3cd3015be11
parent a21930b6b0dbb04a52948566d58fb48c6db58bab
author Colin Cross <ccross@android.com> 1335412936 -0700
committer Colin Cross <ccross@android.com> 1341896977 -0700

libsparse: merge adjacent blocks of the same type

When a block is added that is adjacent to another block and of the same
type, merge it.  This will be useful for converting regular images to
sparse images, allowing the reader to add a single block at a time and
letting libsparse optimize into larger blocks as it goes.

Does not support merge two blocks that are backed by a data pointer,
only blocks that are backed by a file for now.

Change-Id: I95aa231714cbe01ac194e868c21385806c0bdb97