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author | Nebuleon Fumika | 2013-02-08 05:50:22 -0500 |
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committer | Nebuleon Fumika | 2013-02-08 05:50:22 -0500 |
commit | 927d456306672110870eb3386742c1c1ef8eb4f6 (patch) | |
tree | 509da9ac1727570b02572068aefb9cdf102ad75b /sdk-modifications/libsrc/zlib/uncompr.c | |
parent | 433749b6ef1e2b070755c3bb7fc0d81b5ecaa7b1 (diff) | |
parent | d4fcf2697c9a45594e3ee0b8bf82e480ddd0b69b (diff) | |
download | snesemu-927d456306672110870eb3386742c1c1ef8eb4f6.tar.gz snesemu-927d456306672110870eb3386742c1c1ef8eb4f6.tar.bz2 snesemu-927d456306672110870eb3386742c1c1ef8eb4f6.zip |
Merge branch 'master' into 8bitsound
Conflicts:
source/nds/entry.cpp
Diffstat (limited to 'sdk-modifications/libsrc/zlib/uncompr.c')
-rwxr-xr-x | sdk-modifications/libsrc/zlib/uncompr.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sdk-modifications/libsrc/zlib/uncompr.c b/sdk-modifications/libsrc/zlib/uncompr.c new file mode 100755 index 0000000..ad98be3 --- /dev/null +++ b/sdk-modifications/libsrc/zlib/uncompr.c @@ -0,0 +1,59 @@ +/* uncompr.c -- decompress a memory buffer + * Copyright (C) 1995-2003, 2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#define ZLIB_INTERNAL +#include "zlib.h" + +/* =========================================================================== + Decompresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be large enough to hold the + entire uncompressed data. (The size of the uncompressed data must have + been saved previously by the compressor and transmitted to the decompressor + by some mechanism outside the scope of this compression library.) + Upon exit, destLen is the actual size of the compressed buffer. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer, or Z_DATA_ERROR if the input data was corrupted. +*/ +int ZEXPORT uncompress (dest, destLen, source, sourceLen) + Bytef *dest; + uLongf *destLen; + const Bytef *source; + uLong sourceLen; +{ + z_stream stream; + int err; + + stream.next_in = (Bytef*)source; + stream.avail_in = (uInt)sourceLen; + /* Check for source > 64K on 16-bit machine: */ + if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; + + stream.next_out = dest; + stream.avail_out = (uInt)*destLen; + if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; + + stream.zalloc = (alloc_func)0; + stream.zfree = (free_func)0; + + err = inflateInit(&stream); + if (err != Z_OK) return err; + + err = inflate(&stream, Z_FINISH); + if (err != Z_STREAM_END) { + inflateEnd(&stream); + if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) + return Z_DATA_ERROR; + return err; + } + *destLen = stream.total_out; + + err = inflateEnd(&stream); + return err; +} |