Support streaming of compressed assets > 1 megabyte
Compressed assets larger than one megabyte are now decompressed on demand
rather than being decompressed in their entirety and held in memory. Reading
the data in order is relatively efficient, as is seeking forward in the stream.
Seeking backwards is supported, but requires reprocessing the compressed data
from the beginning, so is very inefficient.
In addition, the size limit on compressed assets has been eliminated.
Change-Id: I6e68247957e6c53e7e8ba70d12764695f1723bad
diff --git a/include/utils/Asset.h b/include/utils/Asset.h
index 5908bcc..2a09095 100644
--- a/include/utils/Asset.h
+++ b/include/utils/Asset.h
@@ -61,15 +61,6 @@
ACCESS_BUFFER,
} AccessMode;
- enum {
- /* data larger than this does not get uncompressed into a buffer */
-#ifdef HAVE_ANDROID_OS
- UNCOMPRESS_DATA_MAX = 1 * 1024 * 1024
-#else
- UNCOMPRESS_DATA_MAX = 2 * 1024 * 1024
-#endif
- };
-
/*
* Read data from the current offset. Returns the actual number of
* bytes read, 0 on EOF, or -1 on error.
@@ -317,6 +308,8 @@
FileMap* mMap; // for memory-mapped input
int mFd; // for file input
+ class StreamingZipInflater* mZipInflater; // for streaming large compressed assets
+
unsigned char* mBuf; // for getBuffer()
};