tree 079f311a2958d953447da28e2039948996f1f58f
parent ccc13876d84f9316b5764aba8080c6e1a96ee214
author Mathias Agopian <mathias@google.com> 1241472416 -0700
committer Mathias Agopian <mathias@google.com> 1241472416 -0700

lock will now return the vaddr of the buffer. map/umap are gone.

- make sure to return an error if a buffer is locked twice or unlocked while not locked.
- added registerBuffer() and unregisterBuffer() to the gralloc module so that we can do some cleanup when a buffer is no longer needed. this became necessary after we removed map/unmap so we have a place to unmap buffers without the need of a kernel module.
- change the constants for GRALLOC_USAGE_SW_{READ|WRITE}_NEVER to 0, so that NOT specifying them means "NEVER".